CN114679656A - Battery pack and bone conduction speaker - Google Patents

Abstract

This application mainly relates to a battery assembly and a bone conduction speaker device. The battery assembly includes a battery and a flexible circuit board electrically connected to the battery. The battery includes a battery cell, and the battery core includes a body area and a sealing area. The thickness of the body area is greater than that of the sealing area. the thickness of the area, so that the side surface of the sealing area and the side surface of the body area are arranged in steps, the flexible circuit board includes a first board body and a second board body connected with the first board body, and the first board body is folded and arranged , so that the second plate body is located in the space formed by the sealing area and the body area.

Description

Battery pack and bone conduction speaker device

This application is a divisional application of the Chinese patent application filed on January 5, 2019 with the application number 2019100098835 and the invention name is "battery assembly and bone conduction speaker device".

technical field

The present application relates to the field of battery technology, and in particular, to a battery assembly and a bone conduction speaker device.

Background technique

Due to the requirements of line layout and other aspects, many electronic devices, such as earphones, are provided with switching circuit boards.

The adapter circuit board can be set up as a rigid circuit board and laid out side by side with the battery. In addition, pads corresponding to the battery are arranged on the hard circuit board, and the positive and negative terminals of the battery are drawn out and further connected to the corresponding pads for connecting the power line.

However, this arrangement takes up more space and is not conducive to the miniaturization of electronic equipment; moreover, it is necessary to specially set the pads leading out the positive terminal and the negative terminal of the battery, so that the circuit board has many pads, and the structure and manufacturing process are complicated.

SUMMARY OF THE INVENTION

The present application provides a battery assembly, the battery assembly includes a battery and a flexible circuit board electrically connected to the battery, the battery includes a battery cell, the battery cell includes a body area and a sealing area, and the thickness of the body area is greater than that of the sealing area, so as to The side surface of the sealing area and the side surface of the body area are arranged in steps, the flexible circuit board includes a first board body and a second board body connected with the first board body, and the first board body is folded and arranged to make the second board body The plate body is located in the space formed by the sealing area and the body area.

Optionally, the second board body is provided with a plurality of pads, the plurality of pads include two first pads, and the two first pads are respectively formed by the first pads disposed on the first board body and the second board body. A flexible lead is electrically connected to the positive and negative terminals of the battery.

Optionally, the plurality of pads include a plurality of second pads, the plurality of second pads are divided into at least two groups, and the second pads in each group are respectively composed of second soft pads disposed on the second board body. The leads are electrically connected to each other.

Optionally, the number of second pads in each group is two, and the two second pads in each group are respectively connected to functional elements through wires, and then the two corresponding functional elements are connected through second flexible leads. together.

Optionally, the second pads in each group are arranged at intervals along the width direction of the second board body, and are staggered from each other along the length direction of the second board body, so that the second pads in each group are arranged at stepped intervals. .

Optionally, the first board body is connected to the middle region of the second board body, the two first pads are located in the middle region of the second board body, and the plurality of second pads are distributed on both sides of the two first pads .

Optionally, the shapes of the first plate body and the second plate body are respectively rectangular, so that the first plate body and the second plate body are arranged in a T shape.

Optionally, the battery further includes a rigid circuit board disposed on the side surface of the sealing area, the positive terminal and the negative terminal of the battery are disposed on the rigid circuit board, and the first board body is attached and fixed on the rigid circuit board.

Optionally, a protection circuit is further provided on the hard circuit board, and the protection circuit is used for overload protection of the battery.

The present application further provides a bone conduction speaker device, the bone conduction speaker device includes the battery assembly described in the above embodiments.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

in:

1 is a schematic structural diagram of an embodiment of the bone conduction speaker device of the present application;

2 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

3 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

4 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

5 is a schematic structural diagram of a battery assembly in an embodiment of the bone conduction speaker device of the present application;

6 is a schematic structural diagram of a battery assembly in an embodiment of the bone conduction speaker device of the present application;

FIG. 7 is a schematic diagram of the wiring of the flexible circuit board at the battery in an embodiment of the bone conduction speaker device of the present application;

8 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

9 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Fig. 10 is a partial enlarged view of part A in Fig. 9;

11 is a first plan view of a magnetic joint in an embodiment of the bone conduction speaker device of the present application;

12 is a second top view of the magnetic joint in an embodiment of the bone conduction speaker device of the present application;

13 is a third top view of the magnetic joint in an embodiment of the bone conduction speaker device of the present application;

Fig. 14 is a partial enlarged view of part B in Fig. 9;

15 is a partial structural diagram of an embodiment of the bone conduction speaker device of the present application;

16 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

17 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Fig. 18 is a partial enlarged view of part C in Fig. 17;

19 is a partial structural diagram of an embodiment of the bone conduction speaker device of the present application;

20 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

21 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Figure 22 is a partial enlarged view of part D in Figure 21;

23 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Figure 24 is a partial enlarged view of part E in Figure 23;

25 is a schematic structural diagram of a speaker assembly of an embodiment of the bone conduction speaker device of the present application;

26 is another schematic structural diagram of a speaker assembly of an embodiment of the bone conduction speaker device of the present application;

27 is another structural schematic diagram of a speaker assembly of an embodiment of the bone conduction speaker device of the present application;

FIG. 28 is a partial structural schematic diagram of a speaker assembly of an embodiment of the bone conduction speaker device of the present application;

29 is a partial cross-sectional view of a speaker assembly of an embodiment of the bone conduction speaker device of the present application;

FIG. 30 is a partial enlarged view of the portion F in FIG. 29 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Please refer to FIGS. 1 to 30 . FIGS. 1 to 30 illustrate the bone conduction speaker device of the present application. The bone conduction speaker device in this application may be a bone conduction-based earphone, MP3 player, or other device with speaker function. Specifically, the bone conduction speaker device may include: a circuit case 10 , an ear hook 20 , a rear hook 30 , a speaker assembly 40 , a control circuit 51 , a battery 52 , and the like. The circuit case 10 is used for accommodating the control circuit 51 or the battery 52 , and the speaker assembly 40 includes a core case 41 and an earphone core 42 . The number of the circuit housing 10 , the speaker assembly 40 and the ear hook 20 may be two, corresponding to the left and right sides of the user, respectively. The core case 41 and the circuit case 10 are respectively disposed at two ends of the ear hook 20 , and the rear hook 30 is further disposed at one end of the circuit case 10 away from the ear hook 20 .

In one embodiment, a housing sheath 21 is injection-molded on the ear hook 20 . Specifically, the earhook 20 includes a first elastic wire for supporting the shape of the earhook 20 , and an earhook sheath 22 is injection-molded around the first elastic wire, and the earhook sheath 22 is between the earhook 20 and the circuit housing. A shell jacket 21 integrally formed with the earhook jacket 22 is further formed at the connection of the 10 , that is, the shell jacket 21 is located on the side of the earhook jacket 22 facing the circuit housing 10 .

Similarly, a casing sheath 31 is injection-molded on the rear hanger 30 . Specifically, the rear hanger 30 also includes a second elastic wire for supporting the shape of the rear hanger 30 , and a rear hanger sheath 32 injection molded on the periphery of the second elastic wire. A casing jacket 31 integrally formed with the rear hanging jacket 32 is further formed at the connection of the circuit casing 10 , that is, the casing jacket 31 is located on the side of the rear hanging jacket 32 facing the circuit casing 10 .

It should be pointed out that the shell sheath 21 and the ear hook sheath 22, the shell sheath 31 and the rear hook sheath 32 can all be made of soft materials with certain elasticity, such as soft silicone, rubber, etc. The user wears it to provide a better tactile feeling.

Specifically, the circuit case 10 and the case sheath 21 and the case sheath 31 are formed separately, so that the shape of the inner side wall of the case sheath 21 is the same as that of at least part of the outer side wall of the circuit case 10 close to the earhook 20 . Shape matching, the shape of the inner side wall of the housing sheath 31 matches the shape of at least a part of the outer side wall of the circuit housing 10 close to the rear hanger 30, and then after the three are respectively formed, the housing sheath 21 is set to fit. way, from the side of the circuit housing 10 facing the earhook 20 is fitted on the periphery of the circuit housing 10 close to the earhook 20, and the casing sheath 31 is fitted from the side of the circuit housing 10 towards the rear 30. One side of the circuit case 10 is sleeved on the periphery of the circuit case 10 close to the rear hanger 30 , so that the circuit case 10 can be covered by the case sheath 21 and the case sheath 31 together.

It should be pointed out that due to the high ambient temperature when the casing sheath 21 and the casing sheath 31 are formed, the high temperature environment may cause certain damage to the control circuit 51 or the battery 52 contained in the circuit casing 10 . , in the molding stage, the circuit case 10, the case sheath 21, and the case sheath 31 are separately molded, and then assembled together, instead of directly injecting the case sheath 21 and the case sheath 31 into the circuit case. Therefore, damage to the control circuit 51 or the battery 52 caused by high temperature during integral injection molding can be avoided, thereby reducing the adverse effects on the control circuit 51 or the battery 52 during the molding stage.

In one embodiment, the circuit housing 10 includes a main side wall 11 , a secondary side wall 12 and an end wall 13 that are connected to each other. The circuit case 10 may be a flat case, and the flat circuit case 10 includes a main side wall 11 with a larger area. When the user wears the bone conduction speaker device, the two opposite main side walls 11 are respectively A side wall for abutting against the head and a side wall located away from the head opposite the side wall. Both the auxiliary side wall 12 and the end wall 13 are used to connect the two main side walls 11 . Wherein, the auxiliary side wall 12 is the two side walls facing the upper side and the lower side of the user's head when the user wears it; the end wall 13 is the opposite side wall of the circuit housing 10 and is close to one end of the ear hook 20 and the side wall respectively. The side walls close to one end of the rear hanger 30 face the front side and the back side of the user's head respectively when the user wears it. The main side wall 11 , the auxiliary side wall 12 and the end wall 13 are connected to each other to form the circuit case 10 together.

Specifically, the casing sheath 21 includes an open end 211 , the open end 211 is sleeved on the circuit casing 10 from the side of the circuit casing 10 toward the earhook 20 , and covers the side of the circuit casing 10 facing the earhook 20 . side end wall 13, and the parts of the main side wall 11 and the auxiliary side wall 12 that are close to the ear hook 20; the housing sheath 31 includes an open end 311, the open end 311 extends from the circuit housing 10 toward the rear hanging 30 side and then It is sleeved on the circuit case 10 and covers the end wall 13 of the circuit case 10 facing the rear hanger 30 , and the parts of the main side wall 11 and the auxiliary side wall 12 close to the rear hanger 30 . And further, the open end 211 and the open end 311 are butted against each other on the main side wall 11 and the auxiliary side wall 12 of the circuit case 10 , so as to cover the circuit case 10 .

In an application scenario, the casing sheath 21 and the casing sheath 31 do not completely cover the entire circuit casing 10 , for example, exposed holes may be opened at the positions corresponding to the buttons or the positions corresponding to the power interface, etc., The corresponding structure is exposed to facilitate user operation.

The casing sheath 21 and the casing sheath 31 can be further fixed on the circuit casing 10 by certain means after being sheathed on the periphery of the circuit casing 10, so as to connect the circuit casing 10 to the corresponding circuit casing 10. The housing jackets are secured together.

Specifically, in one embodiment, the inner surfaces of the housing sheath 21 and the housing sheath 31 corresponding to the main side wall 11 are integrally formed with positioning bumps 212 and 312 , respectively. A positioning groove 111 and a positioning groove 112 are respectively provided on the surface.

The positioning bumps 212 are disposed on the inner sidewall near the opening end 211 . The positioning bumps 212 may be annular bumps surrounding the inner side wall of the housing sheath 21 , or may be a plurality of bumps arranged at intervals on the inner side wall of the housing sheath 21 , and the specifics may be based on actual needs. set up. In this embodiment, the number of the positioning bumps 212 is two, which are respectively disposed on the inner side walls of the housing sheath 21 corresponding to the two main side walls 11 of the circuit housing 10 ; similarly, the positioning bumps 312 are The number is also corresponding to two, which are respectively disposed on the inner side walls of the casing sheath 31 corresponding to the two main side walls 11 of the circuit casing 10 .

Specifically, after the casing sheath 21 and the casing sheath 31 are respectively sleeved on both sides of the circuit casing 10 , the positioning protrusions 212 are further inserted into the positioning grooves 111 , and the positioning protrusions 312 are embedded in the positioning grooves. The groove 112 is formed so that the open end 211 of the casing sheath 21 and the open end 311 of the casing sheath 31 elastically abut together, thereby covering the circuit casing 10 .

Further, in one embodiment, the outer side wall 313 of the area of the casing sheath 31 covering the end wall 13 of the circuit casing 10 is disposed obliquely with respect to the auxiliary side wall 12 . Specifically, when worn by the user, the side of the outer side wall 313 of the casing sheath 31 from the side close to the upper side of the user's head to the side close to the lower side of the user's head is inclined in a direction gradually moving away from the rear hanger 30 .

The positioning protrusions 212 and the positioning protrusions 312 can be arranged in a strip shape along the open end 211 and the open end 311 respectively, and can be inclined relative to the auxiliary side wall 12; further, the housing sheath 21 and the housing sheath 31 The seam on the main side wall 11 of the circuit housing 10 can also be arranged obliquely with respect to the secondary side wall 12 . The positioning bumps 212 and 312 , as well as the inclination directions of the seams of the casing sheath 21 and the casing sheath 31 on the main side wall 11 of the circuit casing 10 can all be covered by the casing sheath 31 . The inclination directions of the outer side walls 313 in the region of the end wall 13 of the circuit housing 10 are consistent, so that the appearance of the bone conduction speaker device is more consistent.

In one application scenario, the covering area of the circuit case 10 by either one of the case sheath 21 and the case sheath 31 is not less than half of the covering area of the other one for the circuit case 10 . For example, the covering area of the casing sheath 21 to the circuit casing 10 is not less than half of the covering area of the casing sheath 31 to the circuit casing 10, or the covering area of the casing sheath 31 to the circuit casing 10 The covering area is not less than half of the covering area of the circuit case 10 by the casing sheath 21 . Wherein, the covering area of the casing sheath 21 to the circuit casing 10, the covering area of the casing sheath 31 to the circuit casing 10, and the ratio between the two can be set to others according to requirements. Half, there is no specific limitation here.

Wherein, the circuit housing 10 and the rear hanger 30 may be integrally formed, or may also be connected together by means of plugging, clipping, or the like.

In one embodiment, the rear hanger 30 further includes a plug end 33 disposed toward the circuit housing 10 , and the casing sheath 31 is sleeved on at least part of the plug end 33 . Specifically, the plug-in end 33 can be injection-molded on the end of the second elastic wire, and the rear hanging sheath 32 can be further injection-molded on the outside of the second elastic wire and part of the plug-in end 33 , and integrated at the plug-in end 33 The casing sheath 31 is formed so that the casing sheath 31 is further sleeved on the periphery of the area of the socket end 33 that is not covered by the rear hanging sheath 32 .

Further, the circuit housing 10 is provided with a socket 14 facing the rear hanger 30 , wherein the socket 14 can be disposed on the end wall 13 of the circuit casing 10 close to the rear hanger 30 , and is connected to the end wall 13 A side close to an auxiliary side wall 12 is formed to extend toward the rear hanger 30 .

Wherein, the socket 33 is at least partially inserted into the socket 14 . Wherein, on opposite sides of the socket 33 are respectively provided with slots 331 perpendicular to the insertion direction of the socket 33 relative to the socket 14 , and the two slots 331 can be spaced and symmetrically arranged on the socket 33 on both sides. Further, the two slots 331 may both communicate with the corresponding side walls of the plug-in end 33 in a direction perpendicular to the insertion direction.

Correspondingly, the side wall 15 defining the socket 14 is provided with through holes 151 corresponding to the positions of the two slots 331 . Wherein, the side wall 15 of the socket 14 is disposed on the periphery of the socket 14, and faces the lower side of the user's head in the wearing state.

The bone conduction speaker device further includes a fixing member 53 , and the fixing member 53 includes two pins 531 arranged in parallel and a connecting portion 532 for connecting the pins 531 . In this embodiment, the two pins 531 are arranged in parallel, and the connecting portion 532 can be vertically connected and arranged on the same side of the two pins 531 to form a U-shaped fixing member 53 .

Further, the pin 531 can be inserted into the slot 331 from the outer side wall of the side wall 15 of the socket 14 through the through hole, thereby blocking the connecting portion 532 from the outside of the socket 14, so as to realize the connection between the circuit case 10 and the rear. Hanging 30's plug and fix.

Further, in one embodiment, the side wall 16 defining the socket 14 opposite to the side wall 15 is further provided with a through hole 161 opposite to the through hole 151 , and the pin 531 is further inserted into the through hole 161 through the slot 331 Inside. The side wall 16 may be the auxiliary side wall 12 of the circuit housing 10 on the side close to the socket 14 . When the bone conduction speaker device is in the wearing state, the auxiliary side wall 12 faces the upper side of the user's head.

In this embodiment, the pins 531 are inserted into the slots 331 through the through holes 151 , and are further inserted into the through holes 161 through the slots 331 . The side wall and the plug end 33 are completely penetrated and connected together, so that the connection between the circuit housing 10 and the rear hanger 30 can be more stable.

Further, in one embodiment, the plug end 33 is further divided into a first plug segment 332 and a second plug segment 333 along the insertion direction of the plug end relative to the socket 14 . In a cross-sectional direction perpendicular to the insertion direction of the plug-in end 33 relative to the socket 14 , the cross-section of the first plug-in segment 332 is larger than that of the second plug-in segment 333 .

Specifically, the rear hanging sheath 32 can be injection-molded on the first plug-in section 332 of the plug-in end, and the shell sheath 31 can be integrally injected at the connection between the first plug-in section 332 and the second plug-in section 333 . Further, the slot 331 is disposed on the second socket section 333 , the second socket section 333 is inserted into the socket hole 14 , and the socket end 33 is exposed to the outside of the socket socket 14 .

Further, in one embodiment, the first socket section 332 is provided with a first wire routing slot 3321 along the insertion direction of the socket end 33 relative to the socket 14 , and the second socket section 333 is far away from the first socket 14 . A second wiring slot 3331 extending perpendicular to the insertion direction and penetrating through at least one outer side surface is disposed on the outer end surface of the plug-in segment 332 . Specifically, the first wiring groove 3321 is disposed on the side of the first socket section 332 close to the auxiliary side wall 12 for defining the socket hole 14 and along the insertion direction of the socket end 33 relative to the socket socket 14 Both end surfaces of the first plug-in segment 332 are penetrated. The second wiring slot 3331 can pass through the two outer side surfaces of the second connector segment 333 that are perpendicular to the extending direction of the second wiring slot 3331 .

In addition, the inner side wall of the socket 14 is provided with a wiring slot 162 whose one end communicates with the first wiring slot 3321 and the other end communicates with the second wiring slot 3331 . The wall surface is recessed.

Further, the circuit case 10 includes an inner partition wall 17 disposed inside the case to form a accommodating cavity 18 spaced from the socket 14 . Specifically, the main side wall 11 , the auxiliary side wall 12 and the end wall 13 of the circuit housing 10 together form an accommodating space, and the arrangement of the inner partition wall 17 divides the accommodating space into an accommodating cavity 18 and a connecting hole 14 . two parts. The inner partition wall 17 is further provided with a wiring hole 171 , so that the connecting hole 14 and the accommodating cavity 18 are communicated with each other through the wiring hole 171 .

The bone conduction speaker device is further provided with a rear hanging wire 34 , the rear hanging wire 34 passes through the rear hanging 30 , and the two ends are respectively connected to the control circuit 51 and the battery 52 . Specifically, the rear hanging wire 34 passes through the first wiring slot 3321 , the wiring slot 162 and the second wiring slot 3331 in sequence from the rear hanging 30 , and passes through the wiring hole 171 to enter the accommodating cavity 18 to communicate with the control The circuit 51 or the battery 52 is connected.

In one embodiment, the circuit casing 10 includes a first circuit casing 10a and a second circuit casing 10b, and the bone conduction speaker device further includes a flexible circuit board 54 that can be accommodated together with the battery 52 . in the accommodating cavity 18 of the first circuit housing 10a. The flexible circuit board 54 may be a flexible circuit board (Flexible Printed Circuit, FPC). The battery 52 is provided with a positive terminal and a negative terminal.

Specifically, the flexible circuit board 54 includes a first board body 541 and a second board body 542 . One end of the first board body 541 is fixed on the battery 52 , and the other end is connected to the second board body 542 . The flexible circuit board 54 may be a whole, and the first board body 541 and the second board body 542 are two regions of the whole body, respectively. Wherein, the second board body 542 can be provided with pads and flexible traces connecting the pads, while the first board body 541 can be provided with only flexible traces for connecting the corresponding pads on the second board body 542 Connected to battery 52 . Since only the flexible leads are provided on the first board body 541 , the first board body 541 can be bent, as shown in FIG. 6 , so that the position of the flexible circuit board 54 can be adjusted according to requirements.

The second board body 542 is provided with a plurality of bonding pads at intervals, and the plurality of bonding pads includes two bonding pads 543 and a plurality of bonding pads 544 . Further, the first board body 541 and the second board body 542 are jointly provided with two continuous flexible leads 545 , and the two pads 543 are respectively electrically connected to the positive terminal of the battery 52 by the two flexible leads 545 . and negative extremes.

In addition, the plurality of pads 544 can be divided into at least two groups, and the number of the pads 544 in each group can be set according to requirements. For example, the number of the pads 544 in each group can be two, and the two pads 544 The flexible leads 546 arranged on the second board body 542 are respectively electrically connected to each other. The two pads 544 in each group can be connected to functional elements through wires, and then the two corresponding functional elements can be connected to each other through the flexible leads 546 . connected.

In the above method, on the one hand, the pads used for circuit switching are all arranged on the second board body 542 of the flexible circuit board 54 , and are connected to the battery 52 through the first board body 541 of the flexible circuit board 54 , so that the first board body 541 can be bent according to the requirements of space and the like to place the second board body 542, so that the space utilization of the accommodating cavity 18 of the first circuit housing 10a can be optimized, and the space utilization can be improved. On the other hand, the two pads 543 can be directly connected to the positive terminal and the negative terminal of the battery 52 through the flexible leads 545 on the flexible circuit board 54, and there is no need to provide additional pads to connect the positive and negative terminals of the battery 52. The negative electrode is drawn out, so that the number of pads can be reduced, and the structure and process can be simplified.

In one embodiment, the first plate body 541 is further folded, so that the second plate body 542 is attached to the side surface of the battery 52 , so that the first plate body 541 and the battery 52 are stacked, thereby greatly reducing the number of batteries 52 . and the space occupied by the flexible circuit board 54 .

Specifically, the battery 52 may include a cell 521, the cell 521 includes a body region 5211 and a sealing region 5212, the body region 5211 and the sealing region 5212 are arranged in a tile, and the thickness of the body region 5211 is greater than that of the sealing region 5212, so that the sealing The side surface of the region 5212 and the side surface of the body region 5211 are arranged in steps.

Specifically, the side surfaces of the sealing region 5212 and the body region 5211 in the thickness direction of the cell 521 are arranged in a stepped shape, so that the second plate body 542 can utilize the space formed by the body region 5211 and the sealing region 5212 of the battery cell 521 , and there is no need to provide a separate space for placing the flexible circuit board 54 , thereby further improving the space utilization rate.

In one embodiment, the battery 52 further includes a rigid circuit board 522 , and the rigid circuit board 522 is disposed on the side surface of the sealing area 5212 of the battery cell 521 . Specifically, the positive terminal and the negative terminal are arranged on the hard circuit board 522, and a protection circuit (not shown) is further arranged on the hard circuit board 522 to protect the battery 52 from overload by the protection circuit.

In this embodiment, the end of the first board body 541 away from the second board body 542 is attached and fixed to the rigid circuit board 522 , so that the two flexible leads on the first board body 541 are connected to the rigid circuit board 522 . The positive and negative terminals are connected. Specifically, the first board body 541 and the rigid circuit board 522 can be directly pressed together in the manufacturing stage.

Further, the shapes of the first plate body 541 and the second plate body 542 can be set according to actual conditions. In this embodiment, the shape of the first plate body 541 matches the shape of the sealing area 5212 of the battery core 521, and both can be a long rectangle. The shape of the second plate body 542 can also be a rectangle, and is arranged on the first One end of the plate body 541 in the length direction is perpendicular to the first plate body 541 along the length direction. Further, the first plate body 541 can be connected to the middle area of the second plate body 542 in the length direction, so that the first plate body 541 and the second plate body 542 are arranged in a T shape.

Further, on the second board body 542, the bonding pads 543 and the bonding pads 544 may be arranged in various manners. For example, all bonding pads may be arranged at intervals along a straight line, or arranged at intervals in other shapes.

In this embodiment, two bonding pads 543 are arranged at intervals along the length direction of the second board body 542 in the middle area of the second board body 542 , and a plurality of bonding pads 544 are further distributed on the two bonding pads 543 along the second board body 542 On both sides in the length direction of the , and the pads 544 in each group are arranged adjacent to each other.

In this embodiment, the pads 544 in each group are arranged at intervals along the width direction of the second board body 542 and staggered from each other along the length direction of the second board body 542 , so that the pads 544 in each group can be arranged in a stepped shape. interval setting. In this way, on the one hand, it is possible to avoid the formation of a flush spaced area between the adjacent two groups of pads 544, so that the intensity distribution on the second board body 542 can be uniformed, thereby reducing the number of adjacent two groups of pads The occurrence of bending between 544 reduces the probability of the second plate body 542 being broken due to bending, so as to protect the second plate body 542; on the other hand, the distance between the pads can be increased to facilitate welding , and reduce short circuits between different pads.

The present application also provides a battery assembly. In an embodiment of the battery assembly, the battery assembly includes the battery 52 and the flexible circuit board 54 in the above embodiment. The battery assembly in this embodiment can be applied to devices such as earphones and MP3 players that require circuit switching at the battery 52 , for example, the bone conduction speaker device in this application.

Further, in the embodiment of the bone conduction speaker device of the present application, the rear hanging 30 is connected to one end of the first circuit housing 10a, and a plurality of back hanging wires 34 are provided; the ear hanging 20 is connected to the first circuit housing The other end of the body 10a is provided with a plurality of ear hook wires 23 .

Wherein, each group of pads 544 includes two pads 544, and the ear-hanging wires 23 and the corresponding back-hanging wires 34 are respectively electrically connected to the two pads 544 in the same group of pads 544, and then by connecting the inner The flexible leads 546 of the two bonding pads 544 connect the functional elements connected to the rear hanging wires 34 and the functional elements connected to the ear hanging wires 23 together.

In one embodiment, the movement casing 41 further accommodates auxiliary function modules (not shown) such as the key switch 431 , and in addition, the control circuit 51 is accommodated in the second circuit casing 10b, and the second board body 542 has a total of four Group pads 544 .

The ear-hook wire 23 includes two audio signal wires 231 , namely the first ear-hook wire 2311 and the second ear-hook wire 2312 connected to the earphone core 42 , and the rear-hook wire 34 is connected to the control circuit 51 and used to send the earphone to the earphone. The core 42 transmits the first rear hanging wire 341 and the second rear hanging wire 342 of the audio signal. Further, the first ear hook wire 2311 and the first rear hook wire 341 , the second ear hook wire 2312 and the second rear hook wire 342 are respectively connected to different pads in different groups in the two groups of pads 544 . Specifically, the first ear-hanging wire 2311 and the first back-hanging wire 341 are respectively connected to two pads 544 in the same group of pads 544, and the second ear-hanging wire 2312 and the second rear-hanging wire 342 are respectively connected to another On two pads 544 in a group of pads 544, the earphone core 42 and the control circuit 51 are electrically connected together, so as to realize the transmission of audio signals.

In addition, the ear-hook wire 23 further includes at least two auxiliary signal wires 232, for example, a third ear-hook wire 2321 and a fourth ear-hook wire 2322 connected to the key switch 431. Correspondingly, the rear-hook wire 34 also includes a connection with the control circuit 51 is connected to the third rear hanging wire 343 and the fourth rear hanging wire 344 for transmitting the key signal to the key switch 431 . Further, the third ear-hanging wire 2321 and the third rear-hanging wire 343, the fourth ear-hanging wire 2322 and the fourth rear-hanging wire 344 are respectively connected with different pads 544 in different groups in the two groups of pads 544, The two groups of pads 544 are different from the above-mentioned two groups of pads 544 for transmitting audio signals to the earphone core 42 . Further, the third ear-hanging wire 2321 and the third rear-hanging wire 343 are respectively connected to two pads 544 in the same group of pads 544, and the fourth ear-hanging wire 2322 and the fourth rear-hanging wire 344 are respectively connected to another one. The key switch 431 and the control circuit 51 are electrically connected together to realize the transmission of the key signal.

Further, the rear hanging wire 34 also includes a fifth rear hanging wire 345 and a sixth rear hanging wire 346 that are connected to the control circuit 51 and used to supply power to the control circuit 51, and the fifth rear hanging wire 345 and the sixth rear hanging wire 346. The two pads 543 are respectively connected to connect the battery 52 and the control circuit 51 together.

In one embodiment, the bone conduction speaker device further includes a magnetic connector 55, which can be used as a power interface, so as to cooperate with the power interface of the charger to charge the bone conduction speaker device. Specifically, when charging the bone conduction speaker device, the magnetic suction connector 55 and the corresponding connector of the charger can form a system, and the two are structurally matched to each other so that they can be adsorbed together, thereby establishing an electrical connection to conduct bone conduction. The speaker unit is charged. In this embodiment, the magnetic suction joint 55 includes: a magnetic suction ring 551 , an insulating base 552 , and a first terminal 553 and a second terminal 554 .

The magnetic adsorption ring 551 may be a magnet, and the magnetic polarities of the two opposite ends are different. Correspondingly, the corresponding connector of the charger has a magnetic adsorption structure corresponding to the magnetic adsorption ring 551 , and the magnetic adsorption structure can be made of magnetic materials, such as iron, etc., no matter what magnetic polarity the outer end surface of the magnetic adsorption ring 551 has, Both can be adsorbed together; the magnetic adsorption structure can also be a magnet, at this time, only when the magnetic polarity of the outer end surface of the magnetic adsorption structure is opposite to the magnetic polarity of the outer end surface of the magnetic adsorption ring 551, the two can be carried out. adsorption. Furthermore, the magnetic suction joint 55 and the corresponding joint can be attracted to each other in a preset relative positional relationship through magnetic adsorption, so that the corresponding terminals of the two are butted together to establish an electrical connection.

Specifically, the shape of the outer end surface of the magnetic adsorption ring 551 may be annular, and the annular end surface is adsorbed together with the magnetic adsorption structure of the corresponding joint. It should be pointed out that because the ring is of a "hollow" design, when the magnetic adsorption ring 551 is adsorbed with the ring-shaped magnetic adsorption structure of the corresponding joint, it will be adsorbed and restrained in multiple directions of the ring, so that the magnetic adsorption ring 551 It can be accurately combined with the corresponding magnetic adsorption structure.

The insulating base 552 is at least partially inserted into the magnetic adsorption ring 551 to fix the magnetic adsorption ring 551 . The insulating base 552 is provided with at least two accommodating holes 5521 , the extending direction of the at least two accommodating holes 5521 is consistent with the height direction of the insulating base 552 and at least penetrates the outer end surface of the insulating base 552 . Wherein, the insulating base 552 can be made of insulating materials such as PC and PVC.

Further, the first terminal 553 and the second terminal 554 are respectively arranged in a column shape, and the number is the same as the number of the accommodating holes 5521 on the insulating base 552, so as to be inserted into the respective accommodating holes 5521, and make the corresponding end faces One end of the top surface of the insulating base 552 is exposed through the accommodating hole 5521, so that it can be seen from the top surface of the insulating base 552 and can be flush with the top surface of the insulating base 552 to form the first contact surface 5531 and the second contact surface 5531. Contact surface 5541. The first terminal 553 and the second terminal 554 correspond to the positive terminal and the negative terminal of the power supply, respectively, and are used to supply power to the electronic device by connecting the positive terminal and the negative terminal of the power supply. Correspondingly, the first contact surface 5531 and the second contact surface 5541 can be electrically connected with the corresponding contacts through contact.

In the above-mentioned manner, when the magnetic suction joint 55 is matched with the corresponding joint, it can be attracted and restrained from different directions along the direction of the "hollow" annular surface of the magnetic suction ring 551, thereby reducing the "solid" surface when the surface is attracted. It is easy to stagger, deviate and cannot be accurately positioned, so as to accurately position the first contact surface 5531 and the second contact surface 5541 by aligning the magnetic adsorption ring 551 to achieve the matching connection with the corresponding joint, thereby improving the connection with the corresponding joint. The accuracy of the docking of the corresponding joint.

In one embodiment, the insulating base 552 includes a support portion 5522 and an insertion portion 5523 . Specifically, the support portion 5522 and the insertion portion 5523 are provided along the extending direction of the accommodating hole 5521 . The cross-section of the support portion 5522 is larger than that of the insertion portion 5523, so that a support table 55221 is formed at the connection between the two.

The shape of the outer sidewall near the end of the insertion portion 5523 matches the shape of the inner sidewall of the magnetic adsorption ring 551, so that the insertion portion 5523 can be inserted into the magnetic adsorption ring 551, and the magnetic adsorption ring 551 can be attached to the magnetic adsorption ring 551. to a fixed effect. The two ends of the accommodating hole 5521 of the insulating base 552 penetrate through the end faces of the inserting portion 5523 and the supporting portion 5522 away from each other, respectively, so that the first terminal 553 and the second terminal 554 penetrate the entire insulating base 552 and are inserted into the insulating base 552. The first contact surface 5531 and the second contact surface 5541 are exposed from the outer end surface of the placement portion 5523 away from the support portion 5522 . Further, the first terminal 553 and the second terminal 554 may also extend from the outer end surface of the support portion 5522 away from the insertion portion 5523 to further connect the internal circuit.

Specifically, the inserting portion 5523 can be inserted into the ring of the magnetic adsorption ring 551 by one end away from the supporting portion 5522 , so that the magnetic adsorption ring 551 and its outer end facing away from the end are supported on the support table 55221 . Wherein, the size of the outer side of the magnetic adsorption ring 551 can be consistent with the size of the outer side of the support portion 5522, so that the structure of the magnetic joint is more uniform.

Further, in one embodiment, the magnetic suction joint 55 further includes a casing 555 , and the casing 555 can be sleeved on the outer periphery of the insulating base 552 and the outer surface of the magnetic suction ring 551 , so that the entire magnetic suction joint 55 As a whole, it is convenient for the magnetic suction connector 55 to be further assembled on the power interface of the bone conduction speaker device.

The material of the casing 555 may be a metal material that is not attracted by a magnetic field, such as copper, aluminum, aluminum alloy, etc., or a plastic material, which is not specifically limited here.

In this embodiment, metal is used as the housing 555 of the magnetic joint 55, so that it can be made thin while meeting the strength requirements, so as to reduce the occupation of space.

Specifically, the housing 555 includes a cylindrical body 5551 and a flange 5552 disposed at one end of the cylindrical body 5551 and protruding toward the interior of the cylindrical body 5551, so that one end of the housing 555 where the flange 5552 is provided is partially open, and the other end is completely open . The shape of the inner surface of the cylinder body 5551 matches the shape of the magnetic adsorption ring 551 and the outer surface of the support portion 5522 of the insulating base 552, and the flange 5552 of the part of the open end can cover the magnetic adsorption ring 551 and connect the first terminal 553 and the first terminal 553 to the outer surface. The first contact surface 5531 and the second contact surface 5541 of the second terminal 554 are exposed, so that the housing 555 can be sleeved on the insulating base 552 , the first terminal 553 , the second terminal 554 and the magnetic attraction ring through the completely open end 551, and make the flange 5552 cover the periphery of the end of the magnetic adsorption ring 551 away from the support part 5522, and expose the first contact surface 5531 and the second contact surface 5541 through the partially open end, so as to further connect with the corresponding joint electrical connection.

In an application scenario, the outer end surface of the insertion portion 5523 of the insulating base 552 away from the support portion 5522 is protruded relative to the end of the magnetic adsorption ring 551 away from the support portion 5522. At this time, the part of the opening formed by the flange 5552 is open. The shape of the end may match the shape of the periphery of the insertion part 5523 so that the end of the insertion part 5523 away from the support part 5522 can extend to the outside of the housing 555 through a part of the open end of the housing 555 .

In another application scenario, the insertion portion 5523 of the insulating base 552 is disposed away from the outer end surface of the support portion 5522 in a recess relative to the top surface of the flange 5552 .

It should be pointed out that the magnetic connector 55 in this embodiment can be applied to the power interface of an electronic device or the power interface of a charger, so as to cooperate with the power interface of the corresponding charger or the power interface of the electronic device to form an electronic device. powered by. In the above-mentioned manner, the top surface of the insulating base 552 is protruded or recessed relative to the top surface of the flange 5552, so that the magnetic suction joint 55 can protrude into the corresponding joint, so that a certain plug-fit is formed between the two. relationship to make the connection between the two more stable.

Further, in one embodiment, the outer peripheral wall of the support portion 5522 and the inner peripheral wall of the cylindrical body 5551 may be respectively provided with buckle structures that cooperate with each other. The magnetic attraction ring 551 is set more securely, thereby making the structure of the magnetic attraction joint 55 more stable.

Specifically, in an application scenario, a through groove 55511 is defined on the two opposite outer surfaces of the outer peripheral wall of the cylindrical body 5551. Correspondingly, the support portion 5522 is at a position corresponding to the two through grooves 55511. A buckle 55222 is respectively provided. When the magnetic joint 55 is assembled, the shell 555 can be sleeved on the periphery of the insulating base 552, and the hooks on the support part 5522 can be further clamped in the corresponding through-slots. 55511 to fix the housing 555 on the periphery of the outer peripheral wall of the support portion 5522.

It should be pointed out that the specific shape of the magnetic adsorption ring 551 in the above-mentioned embodiments can be set according to different requirements.

In one embodiment, the outer end surface of the magnetic adsorption ring 551 may be rotationally symmetric with respect to a predetermined symmetry point. When the magnetic attraction ring 551 rotates symmetrically, the first contact surface 5531 and the second contact surface 5541 rotate with the magnetic attraction ring 551 , and the first contact surface 5531 and the second contact surface 5541 before rotation are respectively the same as the first contact surface 5531 and the second contact surface 5541 after the rotation. The first contact surface 5531 and the second contact surface 5541 at least partially overlap. That is to say, the surface formed by the first contact surface 5531 and the second contact surface 5541 may also be rotationally symmetric with respect to a preset symmetry point, or close to rotational symmetry. The shape of the outer end surface of the magnetic adsorption ring 551 and the angle of rotational symmetry, etc., may be determined according to the arrangement of the first contact surface 5531 and the second contact surface 5541 .

Specifically, the outer end surface of the magnetic adsorption ring 551 can be set as a circular ring, an elliptical ring, a rectangular ring, etc. as required, as long as it can be consistent with the arrangement of the first contact surface 5531 and the second contact surface 5541 to make the symmetry It is sufficient that the first contact surface 5531 and the second contact surface 5541 before rotation and the second contact surface 5541 after symmetrical rotation can partially overlap.

In the above manner, since the outer end surface of the magnetic adsorption ring 551 is rotationally symmetrical with respect to the preset symmetrical point, the magnetic adsorption ring 551 can be restored to the position before the symmetrical rotation after symmetrical rotation. 55 for assembly, the magnetic attraction ring 551 can have at least two relative assembly positions relative to the first contact surface 5531 and the second contact surface 5541, so as to facilitate assembly; on the other hand, when the magnetic attraction connector 55 is applied to the power interface , the magnetic suction joint 55 can be docked with the corresponding interface at multiple rotation angles to realize the normal power supply to the electronic device, so as to facilitate the use.

Specifically, as shown in FIG. 10 , in one embodiment, the magnetic adsorption ring 551 may be designed in a circular shape with a symmetrical point as the center, and the first contact surface 5531 and the second contact surface 5541 are respectively arranged concentrically with the magnetic adsorption ring 551 And circular or torus designs nested within each other.

In this way, when the magnetic adsorption ring 551 is rotated symmetrically at any angle around the center of the circle, the first contact surface 5531 and the second contact surface 5541 before the rotation and the first contact surface 5531 and the second contact surface 5541 after the rotation can both be overlapping. Therefore, when assembling, the magnetic adsorption ring 551 only needs to be concentrically sleeved with the first contact surface 5531 and the second contact surface 5541 on the periphery of the insertion portion 5523 of the insulating base 552, and there is no need to compare other positions; When the magnetic suction joint 55 is docked with the corresponding joint, as long as the magnetic suction ring 551 and the magnetic suction structure of the corresponding joint are concentrically corresponding, the first contact surface 5531 and the second contact surface 5541 can be connected to the positive terminal of the corresponding interface Correspondingly connected to the negative terminal, without further calibration in other ways, so it is convenient for users to use.

In one embodiment, as shown in FIG. 11 , the magnetic adsorption ring 551 is rotationally symmetric with respect to the symmetric point by 180 degrees, that is, when the magnetic adsorption ring 551 is rotated 180 degrees with respect to the symmetric point, the first contact surface 5531 and the second contact surface before the rotation are in contact with each other. The surface 5541 and the rotated first contact surface 5531 and the second contact surface 5541 at least partially overlap.

The size of the magnetic adsorption ring 551 is different in the first direction and the second direction that pass through the symmetrical point and are perpendicular to each other. For example, the outer end surface of the magnetic adsorption ring 551 can be an elliptical ring, a rectangular ring, etc. Make specific restrictions.

In an application scenario, the size in the first direction is larger than the size in the second direction. The number of the first contact surfaces 5531 can be one, and the number of the second contact surfaces 5541 can be two, and the number of the second contact surfaces 5541 can be two, so that when the magnetic adsorption ring 551 rotates relative to the symmetrical point, The two second contact surfaces 5541 rotate relative to the first contact surface 5531 , and when the magnetic adsorption ring 551 rotates by 180 degrees, the two second contact surfaces 5541 change positions.

Further, the two second contact surfaces 5541 can be disposed on both sides of the symmetrical point along the first direction, and when the magnetic adsorption ring 551 rotates 180 degrees, any one of the two second contact surfaces 5541 before the rotation is respectively At least partially overlaps with the rotated second contact surface 5541 . Since the two contact surfaces are arranged along the first direction, before and after the rotation, the two second contact surfaces 5541 are located on the same straight line, and their positions are exchanged with each other, that is, one of the second contact surfaces 5541 is located in the rotating position after the rotation. On the other second contact surface 5541 in front. Therefore, when any one of the two second contact surfaces 5541 before rotation at least partially overlaps with the other second contact surface 5541 after rotation, both of the two second contact surfaces 5541 at least partially overlap before and after rotation.

Specifically, the first contact surface 5531 and the two second contact surfaces 5541 may be rotationally symmetric by 180 degrees relative to the point of symmetry, that is, the first contact surface 5531 and the second contact surface 5541 are in a rotational symmetry with respect to the center point of the first contact surface 5531 180-degree rotational symmetry, so that the first contact surface 5531 and the second contact surface 5541 before the symmetrical rotation and the first contact surface 5531 and the second contact surface 5541 after the symmetrical rotation can completely overlap, and can not be rotated by other degrees. completely overlap.

The shape of the first contact surface 5531 and the shape of the second contact surface 5541 may be the same or different, but the shapes of the two second contact surfaces 5541 need to be correspondingly the same. For example, the first contact surface 5531 and the second contact surface 5541 are both circular surfaces, or other surfaces of shapes that can be completely overlapped after being rotated 180 degrees around the center point of the first contact surface 5531 .

In the above manner, since the magnetic adsorption ring 551 rotates 180° before and after the symmetric point, the magnetic adsorption ring 551 faces two opposite directions. The rear first contact surface 5531 and the second contact surface 5541 at least partially overlap, so that when the magnetic attraction connector 55 is assembled, the magnetic attraction ring 551 can be sleeved on the first terminal 553 provided with the first terminal 553 in two opposite directions. and the outer periphery of the insertion portion 5523 of the insulating base 552 of the second terminal 554, so as to facilitate assembly; in addition, when the magnetic suction joint 55 is used with the corresponding joint, it can also be realized in two opposite directions. docking, which is convenient for users to use.

In one embodiment, the magnetic adsorption ring 551 is divided into at least two ring segments 5511 in the circumferential direction, wherein the outer end faces of the adjacent ring segments 5511 have different magnetic polarities.

The division of the ring segment 5511 may be performed according to certain rules. For example, when the outer end surface of the magnetic adsorption ring 551 is an annular shape, the magnetic adsorption ring 551 can be divided into equal parts along the radial direction of the annular shape, for example, four equal parts can be divided into four parts with the same shape and symmetrical distribution or a plurality of ring segments 5511 with different shapes can be randomly divided randomly, which is not specifically limited here.

Specifically, in the actual use process, the first contact surface 5531 and the second contact surface 5541 need to be in contact with the exposed surfaces of the corresponding terminals of the corresponding joints so as to establish electrical connection between the magnetic suction joints 55 and the corresponding joints, so as to connect the magnetic suction joints 55 to the corresponding joints. Conducted loudspeaker power supply. However, when the first contact surface 5531 and the second contact surface 5541 are incorrectly connected to the exposed surface of the terminal in the corresponding connector, a correct electrical connection cannot be established between the magnetic connector 55 and the corresponding connector, so that the Powers bone conduction speakers.

In this embodiment, the magnetic polarity of the outer end surface of each ring segment 5511 can be set according to the connection mode of the first contact surface 5531 and the second contact surface 5541 with the terminals in the corresponding joint, so that the first contact surface 5531 and the second contact surface 5531 and the second contact surface 5531 can be set. When the contact surface 5541 is correctly connected to the terminal of the corresponding connector, the magnetic polarity of the outer end surface of the magnetic structure of the corresponding connector is the same and opposite to the magnetic polarity of the outer end surface of the corresponding ring segment 5511 of the magnetic attraction connector 55, so that the two connectors are due to the opposite sex. When the first contact surface 5531 and the second contact surface 5541 are connected to the wrong terminals of the corresponding joint, the outer end surface of the magnetic structure of the corresponding joint is The magnetic polarity is the same as the magnetic polarity of the outer end face of the corresponding ring segment 5511 of the magnetic joint 55, so that they cannot be butted together due to the repulsion of the same sex, thereby avoiding the establishment of wrong connections and making the magnetic joint 55 unable to work normally , improve the accuracy and efficiency of docking, and bring convenience to users.

In one embodiment, the magnetic adsorption ring 551 may be divided into two ring segments 5511 in the circumferential direction.

Specifically, the shape of the outer end surface of the magnetic adsorption ring 551 can be a regular symmetrical ring such as an elliptical ring, a circular ring, a rectangular ring, etc. as described in the above-mentioned embodiment, so that it can be divided along the symmetry axis of the regular ring It can be two ring segments 5511; or it can also be an irregular ring, and correspondingly divided into two asymmetric ring segments 5511, which can be set according to requirements, which is not specifically limited here.

In an application scenario, as shown in FIG. 12 , the number of the first contact surface 5531 and the second contact surface 5541 is one, and they are arranged side by side at intervals, corresponding to the positive terminal and the negative terminal of the electronic device respectively. Wherein, the magnetic adsorption ring 551 can be rotationally symmetrical by 180 degrees with respect to the symmetry point, and the sizes of the magnetic adsorption ring 551 in the first direction and the second direction which pass through the symmetry point and are perpendicular to each other are different. Specifically, the size of the magnetic adsorption ring 551 in the first direction is larger than that in the second direction, and the shape of the outer end surface of the magnetic adsorption ring 551 may be an elliptical ring. Further, the magnetic adsorption ring 551 can be divided into two ring segments 5511 arranged side by side at intervals along the elliptical ring along its axis of symmetry in the first direction or the second direction. The magnetic polarity is N pole, and the magnetic polarity of the outer end face of the other ring segment 5511 is S pole. Further, the first contact surface 5531 and the second contact surface 5541 of the magnetic attraction joint 55 are also arranged side by side and spaced apart, and are 180 degree rotationally symmetrical in shape with the symmetrical point of the magnetic attraction ring 551 as the symmetrical point.

Correspondingly, the shape and quantity of the magnetic adsorption structures of the corresponding joints are consistent with the magnetic adsorption rings 551 of the magnetic attraction joints 55 , while the magnetic polarities of the outer end surfaces are correspondingly opposite.

At this time, when the first contact surface 5531 and the second contact surface 5541 are correctly docked with the corresponding terminals in the corresponding joints, the two ring segments 5511 of the magnetic adsorption ring 551 and the magnetic adsorption structures in the corresponding joints are attracted by the opposite sex. When the first contact surface 5531 and the second contact surface 5541 are wrongly butted with the corresponding terminals in the corresponding joints, the magnetic polarity of the outer end surface of the magnetic suction joint 55 is the N-pole ring segment 5511 Corresponds to the N pole in the magnetic adsorption structure, and the ring segment 5511 whose magnetic polarity is the S pole on the outer end face corresponds to the S pole in the magnetic adsorption structure, so that the same-sex repulsion is generated and cannot be docked together, thereby avoiding wrong connection. User-friendly.

The present application also provides a magnetic suction joint 55, and the magnetic suction structure includes the specific structure of the magnetic suction joint 55 in the bone conduction speaker device as described above. The magnetic suction joint 55 can be used to include the bone conduction speaker device of the present application. The power interface of the electronic device including the electronic device, or the power interface of the charger, is used to locate and electrically connect the power interface of the electronic device and the power interface of the charger to the corresponding connectors that are used together by magnetic adsorption. Power supply to electronic equipment. The related structures and the technical effects that can be produced can be found in the above-mentioned embodiments, which will not be repeated here.

The present application also provides a magnetic joint 55 assembly, the magnetic joint 55 assembly includes two magnetic joints 55 in the above-mentioned embodiments of the magnetic joint 55 , wherein the number of the ring segments 5511 on the two magnetic joints 55 is equal to The shapes correspond to each other, and the magnetic polarities of the outer end faces of the corresponding ring segments 5511 are opposite to each other, so that when the corresponding ring segments 5511 are attracted to each other, the first contact surfaces 5531 and the second contact surfaces 5541 of the two magnetic suction joints 55 are respectively touch. For other related details, please refer to the above-mentioned embodiments, which will not be repeated here.

It should be noted that, in the above manner, the magnetic polarity of the outer end surfaces of each ring segment 5511 of the two magnetic suction joints 55 can be set so that the first contact surface 5531 and the second contact surface of the two magnetic suction joints 55 When the 5541 are in contact with each other respectively, the magnetic polarities of the outer end faces of the corresponding ring segments 5511 are consistent and opposite, so that the two magnetic suction joints 55 are butted together due to the attraction of opposites, thereby establishing a correct connection between the two; When the first contact surface 5531 and the second contact surface 5541 of one of the magnetic joints 55 correspond to the second contact surface 5541 and the first contact surface 5531 of the other magnetic joint 55 respectively, they correspond to the magnetic poles of the outer end surface of the ring segment 5511 . The two magnetic connectors 55 are of the same sex, so they cannot be docked together due to the repulsion of the same sex, thereby reducing the probability of establishing an erroneous connection between the two magnetic joints 55 , thereby improving the accuracy and efficiency of docking.

Further, in the embodiment of the bone conduction speaker device in the present application, the magnetic suction joint 55 can be arranged in a circuit casing 10 , and specifically can be arranged in the circuit casing 10 for accommodating the control circuit 51 .

In an application scenario, the two main side walls 11 of the circuit housing 10 are arranged at intervals from each other, and two blocking walls 19 are formed on the inner surface of at least one main side wall 11 and are arranged at intervals from each other. The two blocking walls 19 It can be arranged parallel to the end wall 13 of the circuit housing 10 . Wherein, the two main side walls 11 and the two blocking walls 19 are enclosed to form an accommodating space, the accommodating space can be arranged on the side close to an auxiliary side wall 12 , and the magnetic joint 55 is arranged in the accommodating space. in

The two main side walls 11 are further provided with assembling holes 113, and the bone conduction speaker further includes two fixing pieces 56. The two fixing pieces 56 can be respectively inserted into the assembling holes 113 of the two main side walls 11, and are connected from the magnetic Opposite sides of the suction joint 55 abut against the magnetic suction joint 55 .

The number of the mounting holes 113 and the number of the fixing members 56 may be the same. Specifically, the fixing member 56 can be a screw, and the outer side of the main side wall 11 passes through the mounting hole 113 so that one end of the screw abuts the outer side wall of the magnetic joint 55 , and the other end is fixed in the mounting hole 113 .

Further, the central axes of the two fixing members 56 are arranged in parallel and spaced apart from each other. Therefore, the central axes of the two fixing members 56 do not overlap, so that the magnetic joint 55 can be more firmly fixed in the circuit housing 10 .

In an application scenario, an assembly hole 113 is respectively provided on the two main side walls 11 , and the magnetic attraction joint 55 is surrounded by the magnetic attraction joint 55 relative to the two main side walls 11 and the two blocking walls 19 . The insertion direction of the accommodating space is 180-degree rotational symmetry, and two mounting holes 55512 capable of receiving the fixing member 56 are respectively provided on opposite sides of the magnetic joint 55. After the magnetic joint 55 is rotated symmetrically and inserted into the accommodating space , the two mounting holes 55512 on each side of the magnetic joint 55 have one mounting hole 55512 aligned with the mounting hole 113 .

Specifically, the mounting hole 113 is used to receive the outer end of the fixing piece 56 , and the fitting hole 55512 is used to receive the inner end of the fixing piece 56 . The magnetic suction joint 55 is fixed in the accommodating space surrounded by the two main side walls 11 and the two blocking walls 19 .

It should be pointed out that the magnetic suction joint 55 is 180-degree rotationally symmetrical, so that there are two corresponding assembly holes 55512 corresponding to the assembly holes 113 before and after the 180-degree rotation. The suction joint 55 is fixed to facilitate assembly.

Further, the housing jacket 21 or the housing jacket 31 covers the mounting hole 113 provided on the main side wall 11 , and the corresponding housing jacket 21 and/or the housing jacket 31 is provided with a connector allowing magnetic attraction 55 Exposed exposed holes 57 for easy use.

In one embodiment, the bone conduction speaker device further includes a key module 58 disposed on the circuit housing 10 . Specifically, a recessed area 10c is provided on the outer surface of the circuit case 10 , and a button hole 10d is further provided in the recessed area 10c and used to communicate the inner surface and the outer surface of the circuit case 10 .

The number of recessed areas 10c may be one or more, and one or more key holes 10d may be correspondingly provided in each recessed area 10c, which is not limited herein.

Further, the key module 58 further includes: an elastic bearing seat 581 , a key 582 and a second key switch 583 .

The elastic bearing 581 includes an integrally formed bearing body 5811, a contact head 5812 and a support column 5813, wherein the bearing body 5811 is disposed in the recessed area 10c and fixed to the bottom of the recessed area 10c, and the support column 5813 is arranged on the bearing body 5811 faces the outside of the circuit case 10, and the contact head 5812 is disposed on the other side of the socket body 5811 that faces the inside of the circuit case 10, and extends along the key hole 10d.

The elastic bearing seat 581 may be made of a soft material, such as soft rubber, silica gel, etc., and may be the same material as the casing sheath 21 and the casing sheath 31 .

Further, in order to improve the pressing feeling, the button 582 can be made of hard plastic, and is disposed at one end of the support column 5813 facing the outside of the circuit housing 10 . Specifically, the button 582 and the support column 5813 can be fixed together by means of bonding, injection molding, and elastic abutment.

The key switch 583 is disposed inside the circuit housing 10 and corresponding to the key hole 10d, so that when the pressing surface of the key 582 is pressed, the support column 5813 is driven and the contact head 5812 is further driven through the key hole 10d and Trigger the key switch 583 to make the bone conduction speaker device perform the corresponding function.

In the above-mentioned manner, the elastic bearing seat 581 is disposed in the recessed area 10c and fixed to the bottom of the recessed area 10c. It is difficult for the liquid to enter the inside of the circuit housing 10 through the key hole 10d, so as to play a waterproof and protective role on the internal components of the circuit housing 10; The switch 583 can make the contact pressure between the contact head 5812 and the key switch 583 have a certain elasticity, so that the triggering of the key switch 583 is not too stiff, thus bringing a good tactile feeling when the user presses the key 582 .

In one embodiment, the elastic bearing 581 can be fixed to the bottom of the recessed area 10c by sticking or injection molding through the bearing body 5811 .

In an application scenario, the surface of the bearing body 5811 facing the inner side of the circuit housing 10 and the surface of the bottom of the recessed area 10c of the circuit housing 10 facing the outer side of the circuit housing 10 are integrally formed by injection molding. It can be formed by encapsulation.

In this application scenario, the elastic bearing 581 and the bottom of the recessed area 10c of the circuit housing 10 are integrally formed by injection molding, so that the combination between the two is more firm, the bonding strength between the two is increased, and the The tightness of the circuit casing 10 can make the whole key module 58 more stable and reliable on the one hand, and can further improve the waterproof effect of the circuit casing 10 on the other hand.

In one embodiment, the bearing body 5811 specifically includes an annular fixing portion 58111 and an elastic supporting portion 58112 .

Wherein, the annular fixing portion 58111 is disposed around the key hole 10d and is fixedly attached to the bottom of the recessed area 10c, thereby fixing the elastic bearing seat 581 and the circuit case 10 together.

The elastic support portion 58112 is connected to the inner ring surface of the annular fixing portion 58111 and protrudes toward the outside of the circuit housing 10 in a dome shape, so that the top to the bottom has a certain height in the pressing direction of the key 582, and the top portion of the elastic support portion 58112 has a certain height. The dimension perpendicular to the pressing direction is smaller than the bottom. Wherein, the support column 5813 and the contact head 5812 are respectively disposed on both sides of the top of the elastic support portion 58112 . When the button 582 is pressed, the top of the elastic support portion 58112 is pressed to move toward the bottom, thereby driving the button 582 to move toward the button hole 10d until the button switch 583 is triggered.

It should be pointed out that since the overall structure of the bone conduction speaker device is small, the connection between the components is relatively tight, so that the pressing stroke between the button 582 and the button switch 583 is small, and the pressing touch feeling of the button 582 is weakened. In the present embodiment, since the elastic support portion 58112 protrudes in a dome shape toward the outside of the circuit case 10 , the distance between the push button 582 and the push button switch 583 disposed on the elastic support portion 58112 toward the outside of the circuit case 10 can be increased. , and further, the pressing stroke of the button 582 can be increased, so that the user's feeling of pressing the button 582 can be improved.

In one embodiment, the key 582 includes a key body 5821 and an annular flange 5822 and an annular flange 5823 disposed on one side of the key body 5821 . Specifically, the annular flange 5822 and the annular flange 5823 may be disposed on the side of the key body 5821 opposite to the pressing surface.

Specifically, the annular flange 5822 is located in the middle area of the key body 5821, the annular flange 5823 is located at the outer edge of the key body 5821, and both the annular flange 5822 and the annular flange 5823 protrude toward the direction away from the pressing surface of the key body 5821 is formed so as to form an accommodating space surrounded by the annular flange 5822 and a accommodating space formed by the annular flange 5822 and the annular flange 5823 together. Wherein, the protruding heights of the annular flange 5822 and the annular flange 5823 relative to the key body 5821 may be equal or unequal. In this embodiment, the protruding height of the annular flange 5822 relative to the key body 5821 is greater than the protruding height of the annular flange 5823 relative to the key main body 5821 .

The support column 5813 is inserted into the accommodating space inside the annular flange 5822. Specifically, the support column 5813 can be fixed to the annular flange 5822 by bonding, injection molding, or elastic abutment.

Further, the end surface of the annular flange 5823 away from the key body 5821 is sunk in the recessed area 10c, and is spaced a certain distance from the bottom of the recessed area 10c when the elastic bearing 581 is in a natural state.

The bottom of the recessed area 10c refers to the inner wall surface of the recessed area 10c facing the inside of the circuit case 10 . Specifically, when the elastic bearing 581 is in a natural state, by pressing the pressing surface of the button 582, the top of the elastic supporting portion 58112 of the elastic bearing 581 moves in the direction toward the inside of the circuit housing 10, and the ring flange The key switch 583 is activated before the end face of the key body 5823 away from the key body 5821 contacts the bottom of the recessed area 10c.

Further, the button 582 also includes a cylindrical extension arm 5824 disposed on one side of the button body 5821 and protruding from the inside of the annular flange 5822 toward the button hole 10d. The support column 5813 is provided with a receiving hole 58131, and the receiving hole 58131 faces the button The hole 10d extends through the support column 5813 and reaches the contact head 5812 , and the column-shaped extending arm 5824 is further accommodated in the receiving hole 58131 to support the elastic bearing 581 . Therefore, when the button 582 is pressed so that the contact head 5812 triggers the button switch 583, the column-shaped extension arm 5824 can support the contact head 5812, so that the contact between the contact head 5812 and the button switch 583 is not too soft. Thereby, the pressing feeling is further improved.

In one embodiment, the key hole 10 d is disposed on the auxiliary side wall 12 of the circuit case 10 , and the pressing direction of the key switch 583 is perpendicular to the auxiliary side wall 12 and parallel to the main side wall 11 of the circuit case 10 .

In this embodiment, the button module 58 and the control circuit 51 correspond to the same circuit casing 10 , and the control circuit 51 includes a control circuit board, which is disposed inside the circuit casing 10 and is spaced from the main side wall 11 . Specifically, the main surface of the control circuit board is arranged in parallel with the main side wall 11 .

The key switch 583 is disposed on the main surface of the control circuit board, specifically, can be disposed at one end of the main surface close to the auxiliary side wall 12 of the circuit housing 10, so that the key switch 583 corresponds to the key hole 10d, and when the key 582 is pressed , the contact head 5812 is driven to start the key switch 583 in a direction parallel to the main side wall 11 and then parallel to the main surface of the control circuit board.

In the above manner, firstly, the space on the auxiliary side wall 12 of the circuit case 10 can be fully utilized, and secondly, the key switch 583 is disposed on the end of the main surface of the main control circuit board facing the key hole 10d, so that even if it is disposed in the main control circuit board On the main surface of the control circuit board, the key switch 583 can still be triggered normally, so there is no need to specially set a first key circuit board parallel to the auxiliary side wall 12 of the circuit case 10, so that on the one hand, it can reduce the impact on the circuit case 10. The occupation of internal space, on the other hand, can also save costs.

In one embodiment, the circuit housing 10 near the position of the button 582 may be covered by one of the housing sheath 21 and the housing sheath 31 , or by both.

Wherein, the corresponding casing sheath is further provided with an exposed hole 59 that allows the button 582 to be exposed, so that when the casing sheath 21 and/or the casing sheath 31 is sheathed on the periphery of the circuit casing 10, the button 582 is exposed through the exposed The hole 59 is exposed.

In one embodiment, an annular baffle wall 60 is integrally formed on the inner surface of the casing sheath along the edge of the exposed hole, and the annular baffle wall 60 extends to the interior of the concave area 10c along the side wall of the concave area 10c. It is in contact with the side wall surface of the circuit case 10 located in the recessed area 10c, and may further abut with the bottom wall surface of the recessed area 10c.

Further, a sealant can be provided between the outer peripheral surface of the annular barrier wall 60 and the side wall of the recessed area 10c to bond the outer peripheral surface of the annular barrier wall 60 and the sidewall of the recessed area 10c together, thereby further The housing jacket 21 and/or the housing jacket 31 are fastened to the circuit housing 10 .

In one embodiment, the end of the first elastic wire of the earhook 20 facing the circuit case 10 is injection-molded with a plug-in end 24 , and the earhook sheath 22 can be further injection-molded on a part of the plug-in end 24 of the first elastic wire The outer part of the connector is integrally formed with a housing sheath 21 at the socket end 24 . The plug end 24 is connected and fixed to the end of the first circuit housing 10a facing the earhook 20. Further, the housing sheath 21 is sheathed on the first circuit housing from one end of the first circuit housing 10a. 10a, so as to realize the connection between the earhook 20 and the first circuit housing 10a.

Wherein, the connection manner of the connector end 24 and the first circuit housing 10a may be the same as or different from the connection mode of the connector end 33 of the rear hanger 30 and the first circuit housing 10a, which is not specifically limited here.

In one embodiment, a flexible circuit board 44 may also be disposed in the core casing 41 of the bone conduction speaker device.

Specifically, the flexible circuit board 44 is provided with a plurality of pads 45 and two pads 46 , and the two pads 46 and the plurality of pads 45 are located on the same side of the flexible circuit board 44 and arranged at intervals. And the two pads 46 are connected to the corresponding two pads 45 among the plurality of pads 45 through the flexible leads 47 on the flexible circuit board 44 . Further, the core housing 41 also accommodates two external wires 48, one end of each external wire 48 is welded to the corresponding pad 46, and the other end is connected to the earphone core 42, so that the earphone core 42 passes through the external Wires 48 are connected to pads 46 .

The auxiliary function module can be mounted on the flexible circuit board 44 and connected to other pads among the plurality of pads 45 through the flexible leads 49 on the flexible circuit board 44 . The auxiliary function module may be a module other than the earphone core 42 for receiving auxiliary signals and performing auxiliary functions. For example, the auxiliary function module can be a microphone, a key switch, etc., which can be set according to actual needs.

Further, one end of the plurality of ear-hook wires 23 is welded to the flexible circuit board 44 provided in the circuit casing 10, or the control circuit board, and the other end enters the inside of the core casing 41, and is connected with the flexible circuit board. Pad 45 on 44 is soldered.

Wherein, one end of the two audio signal wires 231 of the plurality of ear-hook wires 23 located in the core housing 41 is welded to the two pads 45 welded to the two flexible leads 47, and the other end can be directly or indirectly connected On the control circuit board, the two pads 45 are further connected to the earphone core 42 through the welding of the flexible leads 49 and the two pads 46 and the welding of the two external wires 48 and the pads 46, so as to connect to the earphone core 42 Pass audio signal.

One end of the at least two auxiliary signal wires 232 located in the core casing 41 is welded to the pad 45 to which the flexible lead 49 is welded, and the other end can be directly or indirectly connected to the control circuit board, so as to communicate to the control circuit 51 . The auxiliary signal received and converted by the auxiliary function module is transmitted.

In the above method, the flexible circuit board 44 is arranged in the core casing 41, and the corresponding pads are further set on the flexible circuit board 44, so that the ear-hook wires 23 are welded into the core casing 41 and then welded to the corresponding pads. On the pad of the pad, and further connect the corresponding auxiliary function module through the soft lead 47 and the flexible lead 49 on the pad, so as to avoid connecting multiple ear-hook wires 23 directly to the auxiliary function module. The wiring in the core housing 41 is complicated, so that the wiring arrangement can be optimized, and the space occupation of the core housing 41 can be saved; and the plurality of ear hook wires 23 are directly connected to the auxiliary function modules. When the middle part of the ear-hook wire 23 is suspended in the core housing 41, the vibration is easily caused, thereby bringing abnormal noise to affect the sound quality of the ear-hook core 42, and the ear-hook wire 23 is welded in the above-mentioned way. Further connecting the corresponding auxiliary function modules on the flexible circuit board 44 can reduce the situation that the wires are suspended and affect the quality of the earphone core 42 , thereby improving the sound quality of the earphone core 42 to a certain extent.

In one embodiment, the auxiliary function module may include two microphones 432 , which are a first microphone 432 a and a second microphone 432 b respectively. Wherein, both the first microphone 432a and the second microphone 432b may be MEMS (Micro Electro Mechanical System) microphones 432, which have small operating current, relatively stable performance, and high quality of the generated voice. The two microphones 432 can be arranged on different positions of the flexible circuit board 44 according to actual requirements.

The flexible circuit board 44 includes a main circuit board 441, a branch circuit board 442 and a branch circuit board 443 connected to the main circuit board 441, the branch circuit board 442 and the main circuit board 441 extend in the same direction, and the first microphone 432a is mounted on The end of the branch circuit board 442 away from the main circuit board 441 , the branch circuit board 443 and the main circuit board 441 extend perpendicularly, the second microphone 432 b is mounted on the end of the branch circuit board 443 away from the main circuit board 441 , a plurality of pads 45 Then, it is disposed at the end of the main circuit board 441 away from the branch circuit board 442 and the branch circuit board 443 .

In one embodiment, the movement case 41 includes a peripheral side wall 411 disposed around and a bottom end wall 412 connected to one end surface of the peripheral side wall 411 , thereby forming an accommodating space with an open end. The earphone core 42 is placed in the accommodating space through the open end, the first microphone 432 a is fixed on the bottom end wall 412 , and the second microphone 432 b is fixed on the peripheral side wall 411 .

In this embodiment, the branch circuit board 442 and/or the branch circuit board 443 may be appropriately bent to accommodate the position of the sound inlet hole corresponding to the microphone 432 on the core casing 41 . Specifically, the flexible circuit board 44 can be disposed in the core housing 41 in a manner that the main body circuit board 441 is parallel to the bottom end wall 412, so that the first microphone 432a can correspond to the bottom end wall 412, without the need for the main body circuit board 441 to bend. Since the second microphone 432 b is fixed on the peripheral side wall 411 of the core housing 41 , the second main circuit board 441 needs to be bent. Specifically, the branch circuit board 443 can be placed at the end away from the main circuit board 441 . It is bent and arranged so that the board surface of the branch circuit board 443 is perpendicular to the board surfaces of the main circuit board 441 and the branch circuit board 442 , and thus the second microphone 432b is fixed in a direction away from the main circuit board 441 and the branch circuit board 442 on the peripheral side wall 411 of the movement casing 41 .

In one embodiment, the pads 45 , the pads 46 , the first microphone 432 a and the second microphone 432 b can all be disposed on the same side of the flexible circuit board 44 , and the pad 46 is disposed adjacent to the second microphone 432 b.

The pads 46 can be specifically arranged at the end of the branch circuit board 443 away from the main circuit board 441 , and are arranged in the same direction as the second microphone 432 b and spaced apart, so as to be perpendicular to the pads 45 with the bending of the branch circuit board 443 . towards. It should be pointed out that after the branch circuit board 443 is bent, the board surface may not be perpendicular to the board surface of the main circuit board 441 , which may be determined according to the arrangement between the peripheral side wall 411 and the bottom end wall 412 .

Further, the other side of the flexible circuit board 44 is provided with a rigid support plate 4a for supporting the pad 45 and a microphone rigid support plate 4b, the microphone rigid support plate 4b includes a rigid support plate 4b1 for supporting the first microphone 432a and a rigid support plate 4b2 for jointly supporting the pad 46 and the second microphone 432b.

Among them, the rigid support plate 4a, the rigid support plate 4b1 and the rigid support plate 4b2 are mainly used for supporting the corresponding pads and the microphone 432, so they need to have a certain strength. The materials of the three can be the same or different, and specifically can be polyimide (PolyimideFilm, PI), or other materials that can play a role of strength support, such as polycarbonate, polyvinyl chloride, and the like. In addition, the thicknesses of the three rigid support plates can be set according to the strengths of the rigid support plates themselves and the strengths actually required by the pads 45 , the pads 46 , and the first microphone 432 a and the second microphone 432 b . Specific restrictions.

The rigid support plate 4a, the rigid support plate 4b1 and the rigid support plate 4b2 may be three different regions of a rigid support plate as a whole, or may also be three independent wholes spaced apart from each other, which are not specifically limited here.

In one embodiment, the first microphone 432a and the second microphone 432b correspond to the two microphone assemblies 4c, respectively. In one embodiment, the structures of the two microphone assemblies 4c are the same, and the core housing 41 is provided with a sound inlet hole 413 . The annular baffle wall 414 on the inner surface of the core casing 41 is disposed on the periphery of the sound inlet hole 413 , and further defines an accommodating space 415 that communicates with the sound inlet hole 413 .

Further, the microphone assembly 4c further includes: a waterproof membrane assembly 4c1.

The waterproof membrane assembly 4c1 is arranged in the accommodating space 415 and covers the sound inlet hole 413; the microphone rigid support plate 4b is arranged in the accommodating space 415 and is located on the side of the waterproof membrane assembly 4c1 away from the sound inlet hole 413, In order to press and hold the waterproof membrane assembly 4c1 on the inner surface of the core casing 41, further, the microphone rigid support plate 4b is provided with a sound inlet hole 4b3 corresponding to the sound inlet hole 413. Further, the microphone 432 is disposed on the side of the microphone rigid support plate 4b away from the waterproof membrane assembly 4c1 and covers the sound inlet hole 4b3.

Among them, the waterproof membrane assembly 4c1 has the function of waterproof and sound transmission, and is closely attached to the inner surface of the core casing 41 to prevent the liquid outside the core casing 41 from entering the interior of the core casing 41 through the sound inlet hole 413. Affects the performance of the microphone 432.

The axial directions of the sound inlet hole 4b3 and the sound inlet hole 413 may overlap, or may intersect at a certain angle according to the actual requirements of the microphone 432 and the like.

The microphone rigid support plate 4b is disposed between the waterproof membrane assembly 4c1 and the microphone 432. On the one hand, the waterproof membrane assembly 4c1 is pressed and held, so that the waterproof membrane assembly 4c1 is closely attached to the inner surface of the core casing 41; , the microphone rigid support plate 4b has a certain strength, so as to play the role of supporting the microphone 432 .

Specifically, the microphone rigid support plate 4b may be made of polyimide (PolyimiceFilm, PI), or other materials capable of supporting strength, such as polycarbonate, polyvinyl chloride, and the like. In addition, the thickness of the microphone rigid support plate 4b can be set according to the strength of the microphone rigid support plate 4b and the strength actually required by the microphone 432, which is not specifically limited here.

In one embodiment, the waterproof membrane assembly 4c1 includes a waterproof membrane body 4c11 and an annular rubber pad 4c12. The annular rubber pad 4c12 is disposed on the side of the waterproof membrane body 4c11 facing the microphone rigid support plate 4b, and further disposed on the periphery of the sound inlet hole 413 and the sound inlet hole 4b3.

The microphone rigid support plate 4b is pressed against the annular rubber pad 4c12, so that the waterproof membrane assembly 4c1 and the microphone rigid support plate 4b are bonded and fixed together.

In an application scenario, the annular rubber gasket 4c12 is arranged to form a sealed cavity between the waterproof membrane body 4c11 and the rigid support plate that is only connected to the microphone 432 through the sound inlet hole 4b3, that is, the waterproof membrane assembly 4c1 and the microphone rigid support plate 4b The connection between them leaves no gap, so that the space around the annular rubber pad 4c12 between the waterproof membrane body 4c11 and the microphone rigid support plate 4b is isolated from the sound inlet hole 4b3.

Specifically, the waterproof membrane body 4c11 may be a waterproof sound-permeable membrane, which is equivalent to the eardrum of a human ear. When external sound enters through the sound inlet hole 413 , the waterproof membrane body 4c11 vibrates, thereby causing the air pressure in the sealed cavity to change, thereby causing the microphone 432 to emit sound.

Further, the air pressure in the sealed cavity changes when the waterproof membrane body 4c11 vibrates, and the air pressure needs to be controlled within an appropriate range. If it is too large or too small, it will affect the sound quality. In this embodiment, the distance between the waterproof membrane body 4c11 and the rigid support plate can be 0.1-0.2 mm, specifically 0.1 mm, 0.15 mm, 0.2 mm, etc., so that the sealing cavity caused by the vibration of the waterproof membrane body 4c11 is The air pressure change is within the appropriate range, thereby improving the sound quality.

In one embodiment, the waterproof membrane assembly 4c1 further includes an annular rubber pad 4c13 disposed on the side of the waterproof membrane body 4c11 facing the inner surface of the movement casing 41 and overlapping the annular rubber pad 4c12 .

In this way, the waterproof membrane assembly 4c1 can be closely attached to the inner surface of the core casing 41 around the sound inlet hole 413, thereby reducing the loss of the sound entering through the sound inlet hole 413, and improving the conversion of sound into a waterproof membrane Conversion rate of vibration of body 4c11.

Wherein, the annular rubber pad 4c12 and the annular rubber pad 4c13 may be double-sided adhesive tape or sealant, respectively.

In an application scenario, sealant may be further coated on the periphery of the annular baffle wall 414 and the microphone 432 to further improve the sealing, thereby improving the conversion rate of sound, thereby improving the sound quality.

In one embodiment, the flexible circuit board 44 may be disposed between the rigid support plate and the microphone 432, and a sound entrance hole 444 is provided at a position corresponding to the sound entrance hole 4b3 of the microphone rigid support plate 4b, so as to allow the sound from the outside world. The resulting vibration of the waterproof membrane body 4c11 passes through the sound inlet hole 444 and further affects the microphone 432 .

Further, the flexible circuit board 44 further extends away from the microphone 432 to be connected with other functional elements or wires to achieve corresponding functions. Correspondingly, the microphone rigid support plate 4b also extends a distance away from the microphone 432 along with the flexible circuit board.

Correspondingly, the annular blocking wall 414 is provided with a notch matching the shape of the flexible circuit board, so as to allow the flexible circuit board to extend from the accommodating space 415 . In addition, the gap can be further filled with sealant to further improve the sealing performance.

Further, in one embodiment, the speaker assembly 40 further includes a button module 4d, and the auxiliary function module mounted on the flexible circuit board 44 includes a button switch 431, and the button switch 431 and the microphone 432 are respectively disposed in different circuits inside the housing 10 . Of course, in other embodiments, it can also be provided in the same circuit housing 10 , which is not specifically limited here.

Correspondingly, the flexible circuit board 44 may include a main circuit board 445 and a branch circuit board 446 , wherein the branch circuit board 446 may extend along an extension direction perpendicular to the main circuit board 445 . The plurality of pads 45 are arranged on the end of the main circuit board 445 away from the branch circuit board 446 , the key switch is mounted on the main circuit board 445 , and the pads 46 are arranged on the end of the branch circuit board 446 away from the main circuit board 445 .

In this embodiment, the surface of the flexible circuit board 44 is arranged in parallel with the bottom end wall 412 , so that the key switch can be disposed toward the bottom end wall 412 of the core casing 41 .

Correspondingly, the key switch is arranged on the side of the flexible circuit board 44 facing the bottom end wall 412 . For the convenience of assembly, the pads 45 and 46 can be arranged on the side of the flexible circuit board 44 away from the bottom end wall 412 , so that the pads 45 and 46 and the key switch are respectively arranged on both sides of the flexible circuit board 44 . It should be pointed out that the arrangement between the pads 45 and 46 and the flexible leads 47 and 49 in this embodiment is the same as the arrangement of the microphone 432 in the above-mentioned embodiment, which will not be repeated here.

The main circuit board 445 is provided with a rigid support plate 4d3 on the side away from the key switch for supporting the key switch and keeping the pad 45 exposed, and on the side away from the pad 45 is provided with a rigid support plate 4d3 for supporting the pad 45 and keeping the key switch exposed The rigid support plate 4e of the branch circuit board 446 is provided with a rigid support plate 4f for supporting the pad 46 on the side away from the pad 46 .

The materials of the rigid support plate 4d3, the rigid support plate 4e and the rigid support plate 4f here can be the same. Specifically, they can be the same as the rigid support plate 4a, the rigid support plate 4b1 and the rigid support plate 4b2 in the above-mentioned embodiment in terms of material and function. The same as above, please refer to the above-mentioned embodiments for related details, which will not be repeated here. Further, the thicknesses of the rigid support plate 4d3 , the rigid support plate 4e and the rigid support plate 4f can be determined according to their own strengths and the support strength required by the corresponding key switches, pads 45 and pads 46 .

The key switch 431 and the pads 45 can be disposed on both sides of the main circuit board 445 respectively, and are arranged at intervals on both sides of the main circuit board 445 . Correspondingly, the rigid support plate 4d3 corresponding to the key switch 431 and the rigid support plate 4e corresponding to the pad 45 are also respectively disposed on both sides of the main circuit board 445, and further bypass the key switch 431 and the pad 45 respectively, thereby so that the two have adjacent edges arranged adjacently.

Because, if the adjacent edges of the rigid support plate 4d3 and the rigid support plate 4e are arranged on the flexible circuit board 44 at intervals, only the flexible circuit board 44 is arranged in the interval between the adjacent edges, and since the flexible circuit The strength of the board 44 is small, and the strength of the rigid support board is large, so that the flexible circuit board 44 is easily broken when the flexible circuit board 44 in the spaced area is repeatedly bent.

In this embodiment, the projections of the adjacent edges of the rigid support plate 4d3 and the rigid support plate 4e on the flexible circuit board 44 overlap each other, so that there is no space between the adjacent edges of the two, or only a part of the space is provided, so that The occurrence of the above situation is reduced to protect the flexible circuit board 44 .

A rigid support plate 4d4 may be further provided on the side of the rigid support plate 4d3 away from the flexible circuit board 44, and the rigidity of the rigid support plate 4d4 is greater than that of the rigid support plate 4d3.

The rigid support plate 4d3 corresponds to the key switch 431, and the key switch 431 will be repeatedly pressed by the user during use, so it needs to be supported with higher strength. In this embodiment, the material of the rigid support plate 4d4 may be stainless steel, or other materials with high strength relative to the material of the rigid support plate 4d3. Specifically, the rigid support plate 4d3 and the rigid support plate 4d4 may be formed together by hot pressing.

In one embodiment, a recessed area 4121 is provided on the inner surface of the movement casing 41 , specifically the inner surface of the bottom end wall 412 , and is further provided with a recessed area 4121 for communicating with the inner surface of the movement casing 41 . Key holes 4122 on the surface and outer surface. Wherein, the recessed area 4121 is formed by the inner surface of the movement case 41 being recessed toward the outside of the movement case 41 . The key hole 4122 can be further disposed in the middle part of the recessed area 4121, or disposed in other parts according to actual needs.

Further, the button module 4d further includes an elastic bearing seat 4d1 and a button 4d2.

The elastic bearing 4d1 includes a bearing body 4d11 and a supporting column 4d12 which are integrally formed. The socket body 4d11 is disposed in the recessed area 4121 and fixed to the bottom of the recessed area 4121 . Specifically, the bottom of the recessed area 4121 refers to the inner wall surface of the recessed area 4121 away from the interior of the movement case 41 . The support column 4d12 is disposed on the side of the bearing body 4d11 facing the outside of the movement casing 41 and is exposed from the key hole 4122 .

The elastic bearing seat 4d1 may be made of soft material, such as soft rubber, silica gel, etc., and may be the same material as the casing sheath 21 and the casing sheath 31 . In order to improve the pressing feeling, the button 4d2 can be made of hard plastic, and is disposed on the part of the support column 4d12 exposed to the button hole 4122 . Specifically, the button 4d2 and the support column 4d12 can be fixed together by means of bonding, injection molding, elastic abutment, and the like.

In the above-mentioned manner, the elastic bearing seat 4d1 is disposed in the recessed area 4121 and fixed at the bottom of the recessed area 4121, and the key hole 4122 is covered from the inner side of the core casing 41 through the bearing body 4d11, so that the core casing The interior of the body 41 is separated from the exterior, so that it is difficult for the liquid outside the core housing 41 to enter the interior of the core housing 41 through the key hole 4122 , so that the internal components of the core housing 41 are waterproof and protected. .

In an application scenario, the elastic bearing 4d1 can be fixed to the bottom of the recessed area 4121 through the bearing body 4d11 in a pasting manner. Specifically, the surface and the recessed area of the bearing body 4d11 facing the outer side of the movement case 41 can be fixed. Glue, double-sided tape, etc. are applied between the bottoms of the 4121 to stick the two together.

In one application scenario, the socket body 4d11 can be fixed to the bottom of the recessed area 4121 by injection molding. The surface of the bearing body 4d11 facing the outer side of the core casing 41 and the bottom of the recessed area 4121 of the core casing 41 are integrally formed by injection molding, and can be formed by plastic wrapping. In this application scenario, the elastic bearing seat 4d1 and the bottom of the recessed area of the movement case 41 are integrally formed by injection molding, thereby making the combination between the two more firm, increasing the bonding strength between the two, and enabling the The sealing performance of the movement casing 41 is improved, so that on the one hand, the entire key module 4d can be made more stable and reliable, and on the other hand, the waterproof effect of the movement casing 41 can be further improved.

In one embodiment, the bearing body 4d11 includes an annular fixing portion 4d111 and an elastic supporting portion 4d112. The annular fixing portion 4d111 is disposed around the key hole 4122 and is fixedly attached to the bottom of the recessed area 4121, thereby fixing the elastic bearing seat 4d1 and the movement case 41 together.

The elastic support portion 4d112 is connected to the inner ring surface of the annular fixing portion 4d111 and is dome-shaped bulge toward the outside of the movement case 41, so that the top to the bottom has a certain height in the pressing direction of the key 4d2, and its The dimension of the top in the direction perpendicular to the pressing direction is smaller than that of the bottom. The supporting column 4d12 is disposed on the top of the elastic supporting portion 4d112. When the button 4d2 is pressed, the top of the elastic support portion 4d112 is pressed to move toward the bottom, thereby driving the button 4d2 to move toward the button hole 4122 until the button switch 431 is triggered.

It should be pointed out that since the overall structure of the bone conduction speaker device is small, the connection between the components is relatively tight, so that the pressing stroke between the key 4d2 and the key switch 431 is small, thereby weakening the pressing touch feeling of the key 4d2. In the present embodiment, since the elastic support portion 4d112 protrudes in a dome shape toward the outside of the core casing 41, the distance between the key 4d2 and the key switch 431 inside the core casing 41 can be increased, and further can be appropriately increased The key 4d2 triggers the pressing stroke of the key switch 431, so that the user's feeling of pressing the key 4d2 can be improved.

Specifically, the bottom of the elastic support portion 4d112 is fixed on the side wall surface of the key hole 4122, so that the top of the elastic support portion 4d112 is exposed from the key hole 4122, and then the end of the elastic support portion 4d112 facing the outside of the movement casing 41 is disposed. The supporting column 4d12 is completely exposed outside the movement casing 41 , and is further fixed with the button 4d2 outside the movement casing 41 .

In one embodiment, a recessed area 4123 is provided on the outer surface of the movement case 41 , wherein the key hole 4122 is further located in the recessed area 4123 . That is, the concave area 4121 and the concave area 4123 are located at two ends of the key hole 4122 respectively, and are penetrated by the key hole 4122 . The shapes and sizes of the recessed area 4121 and the recessed area 4123 can be set to be the same or different according to actual requirements. In addition, the number of the recessed areas 4121 and the recessed areas 4123 may be the same, and the number of the two may be determined according to the number of the keys 4d2, which may be one or more, and each recessed area 4121 and recessed area 4123 may be provided with one or more correspondingly The number of button holes 4122 is not specifically limited here. In this embodiment, the number of buttons 4d2 corresponding to the movement casing 41 is one, and corresponds to one recessed area 4121 and one recessed area 4123 .

The support column 4d12 is supported by the elastic support portion 4d112 to the side of the key hole 4122 facing the outside of the movement casing 41 and located in the recessed area 4123. Further, the key 4d2 is arranged on the elastic support portion 4d112 side of the support column 4d12, In this embodiment, by setting the heights of the elastic support portion 4d112 and the support column 4d12 along the pressing direction of the button 4d2, the button 4d2 is at least partially recessed in the recessed area 4123, so as to improve the space utilization rate and reduce the amount of space required by the button module 4d. space occupied.

In one embodiment, the key 4d2 includes a key body 4d21 and an annular flange 4d22 and an annular flange 4d23 disposed on one side of the key body 4d21. Specifically, the annular flange 4d22 and the annular flange 4d23 may be arranged on the opposite side of the pressing surface of the key body 4d21.

Specifically, the annular flange 4d22 is located in the middle area of the key body 4d21, the annular flange 4d23 is located at the outer edge of the key body 4d21, and both the annular flange 4d22 and the annular flange 4d23 protrude toward the direction away from the pressing surface of the key body 4d21 Formed to form a cylindrical accommodating space 4d24 surrounded by the annular flange 4d22, and an annular cylindrical accommodating space 4d25 jointly surrounded by the annular flange 4d22 and the annular flange 4d23. Wherein, the protruding heights of the annular flange 4d22 and the annular flange 4d23 relative to the key body 4d21 may be equal or unequal. In this embodiment, the protruding height of the annular flange 4d22 relative to the key body 4d21 is greater than the protruding height of the annular flange 4d23 relative to the key main body 4d21.

The support column 4d12 is inserted inside the annular flange 4d22, that is, accommodated in the accommodating space 4d24. Specifically, the support column 4d12 can be fixed with the annular flange 4d22 by bonding, injection molding, or elastic abutment. .

Further, the end surface of the annular flange 4d23 away from the key body 4d21 is sunk in the recessed area 4123, and is spaced apart from the bottom of the recessed area 4123 by a certain distance when the elastic bearing 4d1 is in a natural state.

The bottom of the recessed area 4123 refers to the inner wall surface of the recessed area 4123 facing the inside of the movement case 41 . Specifically, when the elastic bearing seat 4d1 is in the natural state, by pressing the pressing surface of the button 4d2, the top of the elastic supporting portion 4d112 of the elastic bearing seat 4d1 moves in the direction toward the inside of the movement casing 41, and the annular convex Before the end face of the edge 4d23 away from the key body 4d21 contacts the bottom of the recessed area 4123, the key switch 431 is triggered.

In one embodiment, the elastic bearing 4d1 further includes a contact head 4d13 for contacting the key switch 431. The contact head 4d13 can be arranged on the side of the bearing body 4d11 close to the inside of the movement case 41, and can be arranged on the elastic support. The middle area of the inner wall surface of the top of the portion 4d112 facing the inside of the movement case 41 is provided protruding toward the inside of the movement case 41 with respect to the inner wall surface.

When the button 4d2 is pressed, the top of the elastic support portion 4d112 of the elastic bearing 4d1 moves in the direction toward the inside of the core casing 41, thereby driving the contact head 4d13 to move towards the key switch 431 inside the core casing 41, so as to pass the The contact head 4d13 triggers the key switch 431, thereby realizing the corresponding function. In this way, the pressing stroke of the key 4d2 can be reduced according to actual requirements.

In one embodiment, the speaker assembly 40 is connected to the earhook 20 through the core housing 41 , and the button module 4d is centrally arranged relative to the speaker assembly 40 or disposed at the proximal end 4g of the speaker assembly 40 near the earhook top 25 .

The top 25 of the earhook refers to the part of the top of the earhook 20 that corresponds to the top of the user's ear when the user wears the bone conduction speaker device.

When the user wears the bone conduction speaker device, the top of the earhook 25 fits well with the head, and the vibration of the speaker assembly 40 can be regarded as the top of the earhook 25 as a fixed point, and the connection between the top of the earhook 25 and the speaker assembly 40 is The part of the ear hook 20 acts as the reciprocating swing of the arm. Therein, the swing amplitude (ie, the vibration acceleration) of the speaker assembly 40 is positively related to the volume it produces. The mass distribution of the speaker assembly 40 has a significant impact on the amplitude of its reciprocating swing, thereby affecting the volume generated by the speaker assembly 40 .

In this embodiment, the setting of the key module 4d on the speaker assembly 40 will affect the mass distribution of the speaker assembly 40, and further affect the volume generated by the speaker assembly 40. Specifically, it can be concluded from the dynamic principle that when the button 4d2 is disposed at the far end 4h from the earhook top 25, the vibration acceleration of the speaker assembly 40 will be smaller than the vibration when the button module 4d is disposed at the near end 4g from the earhook top 25. acceleration, resulting in a drop in volume.

Correspondingly, in this embodiment, by arranging the key module 4d in the center relative to the speaker assembly 40 or at the proximal end 4g of the speaker assembly 40 close to the earhook top 25, the vibration acceleration of the speaker assembly 40 is increased, thereby improving the speaker assembly. 40 volume.

Wherein, the projection of the open end of the movement case 41 on the plane α where the outer side surface 4d26 of the key 4d2 is located includes a proximal edge p close to the earhook top 25 and a distal edge q away from the earhook top 25, wherein the key 4d2 The shortest distance h1 from the near-end edge p is not greater than the shortest distance h2 between the key 4d2 and the far-end edge q.

The outer side surface 4d26 of the key 4d2 refers to the plane where the surface of the key 4d2 on the side away from the key hole 4122 is located. Further, the projection of the open end on the plane where the outer side surface 4d26 of the key 4d2 is located covers the key 4d2.

The shortest distance h1 between the button 4d2 and the near-end edge p is the shortest distance between the side of the button 4d2 close to the earhook top 25 and the side of the near-end edge p close to the earhook top 25; The shortest distance h2 between the end edges q is the shortest distance between the side of the key 4d2 away from the earhook top 25 and the side of the distal edge q away from the earhook top 25 .

Wherein, the size relationship between the shortest distance h1 between the button 4d2 and the near-end edge p and the shortest distance h2 between the button 4d2 and the far-end edge q corresponds to that the button 4d2 is located at the proximal end 4g near the top 25 of the ear hook, or Centered, or close to the far 4h setting.

Specifically, when the shortest distance h1 between the button 4d2 and the proximal edge p is smaller than the shortest distance h2 between the button 4d2 and the distal edge q, the button 4d2 is located at the position of the proximal end 4g of the earhook top 25, and the The difference between the shortest distance h1 between 4d2 and the near-end edge p and the shortest distance h2 between the button 4d2 and the far-end edge q increases, the closer the button 4d2 is to the top 25 of the ear hook; When they are equal, the button 4d2 is located in the center setting.

In one embodiment, the keys 4d2 are axially symmetrically arranged with respect to two symmetrical directions perpendicular to each other, wherein the dimension s1 of the keys 4d2 in the long axis direction in the two symmetrical directions is larger than the size s1 of the keys 4d2 in the two symmetrical directions. Dimension s2 in the direction of the minor axis.

Specifically, the shape of the key 4d2 may be an ellipse, a rectangle, or the like. In this embodiment, the directions of the long axis and the short axis of the button 4d2 are not specifically limited. For example, the long axis may be located in the connection direction of the ear hook 20 and the core housing 41, or may be located perpendicular to the ear hook 20 and the machine. The connection direction of the core case 41, or other directions, etc.

In one embodiment, the included angle θ between the projection of the extension line r of the central axis of the connecting portion of the earhook 20 and the speaker assembly 40 on the plane where the outer side surface 4d26 of the button 4d2 is located and the long axis direction is less than 10°, Specifically, it can be 9°, 7°, 5°, 3°, 1°, etc., which is not specifically limited here.

Wherein, the extension line r of the central axis of the connecting part of the earhook 20 and the speaker assembly 40 may be parallel to the connection direction of the earhook 20 and the speaker assembly 40 .

When the angle θ of the included angle between the projection of the extension line r on the plane where the outer side surface 4d26 of the key 4d2 is located and the long axis direction is less than 10°, the long axis direction of the key 4d2 does not deviate too much from the extension of the extension line r direction, so that the long axis direction of the key 4d2 is consistent with or nearly consistent with the direction of the extension line r of the central axis.

In one embodiment, the shortest distance d between the projection of the extension line r of the central axis of the earhook 20 on the plane where the outer side surface 4d26 of the button 4d2 is located and the intersection point of the long axis direction and the short axis direction is smaller than that of the button 4d2 between the two sides. The dimension s2 in the direction of the short axis in the symmetrical direction of the strip makes the key 4d2 close to the extension line r of the central axis of the earhook 20 . In an application scenario, the projection of the extension line r of the central axis of the earhook 20 on the plane where the outer side surface 4d26 of the key 4d2 is located may coincide with the long axis direction, so as to further improve the sound quality of the speaker assembly 40 .

In one embodiment, there is a first distance L1 between the mass center m1 or the centroid of the button module 4d and the earhook top 25, and the distance between the mass center m2 or the centroid of the speaker assembly 40 except the button module 4d and the earhook top 25 is There is a second distance L2 between them. In this embodiment, the mass distribution of the speaker assembly 40 of the key module 4d is relatively uniform, so it can be considered that the mass center m1 of the key module 4d coincides with the centroid, and the mass center m2 of the speaker assembly 40 also coincides with the centroid.

The mass distribution of the key module 4d can be expressed as the ratio between the first distance L1 and the second distance L2, and the mass ratio k of the key module 4d to the rest of the speaker assembly 40 except the key module 4d. Specifically, under the condition that the quality of the key module 4d is constant, as the ratio between the first distance L1 and the second distance L2 increases, the vibration acceleration of the speaker assembly 40 decreases, which in turn leads to a decrease in volume; When the ratio between the distance L1 and the second distance L2 is constant, as the mass of the key module 4d increases, the vibration acceleration of the bone conduction speaker decreases, thereby reducing the volume. Therefore, by adjusting the ratio between the first distance L1 and the second distance L2 and the mass ratio of the key module 4d to the rest of the key module 4d, the volume reduction caused by the setting of the key module 4d can be controlled at within the range that the human ear can recognize.

In an application scenario, the ratio between the first distance L1 and the second distance L2 may not be greater than 1.

Specifically, when the ratio between the first distance L1 and the second distance L2 is equal to 1, the centroid m1 and centroid of the button module 4d coincide with the centroid m2 and centroid of the speaker assembly 40, so that the button module 4d is relatively The speaker assembly 40 is centrally arranged; when the ratio between the first distance L1 and the second distance L2 is less than 1, the mass center m1 and the centroid of the button module 4d are closer to the earhook top 25 than the mass center m2 and the centroid of the speaker assembly 40 so as to be located at the proximal end 4g of the speaker assembly 40 close to the top end 25 of the earhook. Moreover, the smaller the ratio between the first distance L1 and the second distance L2, the closer the mass center m1 and the centroid of the button module 4d to the mass center m2 and the centroid of the speaker assembly 40 are closer to the earhook top 25.

Further, the ratio between the first distance L1 and the second distance L2 may not be greater than 0.95, so that the button module 4d is closer to the top 25 of the ear hook. Wherein, the ratio between the first distance L1 and the second distance L2 may also be 0.9, 0.8, 0.7, 0.6, 0.5, etc., which can be specifically set according to requirements, which is not limited here.

Further, under the condition that the ratio between the first distance L1 and the second distance L2 satisfies the above range, the mass ratio of the key module 4d to the mass ratio of the rest of the speaker assembly 40 except the key module 4d may not be greater than 0.3, and may be specifically Not more than 0.29, 0.23, 0.17, 0.1, 0.06, 0.04, etc., which are not limited here.

Wherein, the button module 4d in the present application may only be arranged on one speaker assembly 40. In one embodiment, the number of button modules 4d is two, which are respectively arranged on the two speaker assemblies 40. In this case, the two The volume of the speaker assembly 40 decreases, which makes it easier for human ears to perceive. At this time, the mass ratio of the key module 4d to the mass ratio of the speaker assembly 40 except the key module 4d may not be greater than 0.1, such as 0.1, 0.6, 0.4, etc.

In an embodiment of the bone conduction speaker device of the present application, the earphone core 42 of the bone conduction speaker device is a bone conduction earphone core 42 . Specifically, the bone conduction earphone core 42 includes a bracket 421 , a coil 422 and an external lead 48 .

The bracket 421 is the shell of the earphone core 42 , and is used for supporting and protecting the entire structure of the earphone core 42 . In this embodiment, the bracket 421 is provided with a buried wire slot 4211 , which can be used to accommodate the wires of the earphone core 42 .

The coil 422 can be disposed on the bracket 421 and has at least one inner lead 423 connected to the main line in the coil 422 to lead out the main line and transmit audio current to the coil 422 through the inner lead 423 .

The outer wire 48 is used to connect with the inner lead 423 , and further, the outer wire 48 can be connected to the control circuit 51 to transmit audio current to the coil 422 through the inner lead 423 through the control circuit 51 .

Specifically, in the assembly stage, the outer wire 48 and the inner lead 423 need to be connected together by welding or other means. Due to the limitation of the structure and other factors, after the welding is completed, the length of the wire cannot be exactly the same as the length of the channel, usually the There is excess length of wire. However, if the extra length of wire cannot be properly placed, it will vibrate with the vibration of the coil 422 , thereby producing abnormal noise, which affects the sound quality of the earphone core 42 .

Further, at least one of the outer wire 48 and the inner lead 423 can be wound and arranged in the buried wire groove 4211. In an application scenario, the welding position between the inner lead 423 and the outer wire 48 can be set in the buried wire. The part of the outer wire 48 and the inner lead 423 located near the welding position is wound into the buried wire groove 4211 . In addition, in order to maintain stability, sealant can be further filled in the buried wire groove 4211, so as to fix the wiring in the buried wire groove 4211.

In the above method, a buried wire slot 4211 is set on the bracket 421, so that at least one of the outer wire 48 and the inner lead 423 is wound and arranged in the buried wire groove 4211 to accommodate the excess length of the wire, thereby weakening its passage in the channel. The vibration generated therein further reduces the influence on the sound quality emitted by the earphone core 42 due to the abnormal sound generated by the vibration.

In one embodiment, the bracket 421 includes an annular body 4212 , a support flange 4213 and an outer barrier wall 4214 . Wherein, the annular main body 4212, the support flange 4213 and the outer blocking wall 4214 can be obtained by integral molding.

Wherein, the annular body 4212 is disposed on the inner side of the entire bracket 421 for supporting the coil 422 . Specifically, the cross section of the annular main body 4212 in a direction perpendicular to the radial direction of the annular shape is consistent with the coil 422 , the coil 422 is disposed at one end of the annular main body 4212 facing the inside of the movement case 41 , and the inner sidewall of the annular main body 4212 and the outer sidewalls may be flush with the inner and outer sidewalls of the coil 422, respectively, so that the inner sidewall of the coil 422 is coplanar with the inner sidewall of the annular body 4212, and the outer sidewall of the coil 422 is coplanar with the outer sidewall of the annular body 4212. set up.

Further, the support flange 4213 is protrudingly disposed on the outer side wall of the annular main body 4212 and extends to the outer side of the annular main body 4212 , specifically, may extend outward in a direction perpendicular to the outer side wall of the annular main body 4212 . Wherein, the support flange 4213 can be disposed between the two ends of the annular main body 4212 . In this embodiment, the support flange 4213 can protrude around the outer side wall of the annular main body 4212 to form an annular support flange 4213 . In other embodiments, it can also be formed to protrude only at a part of the outer side wall of the annular body 4212 according to requirements.

The outer blocking wall 4214 is connected with the support flange 4213 and is spaced apart from the annular main body 4212 along the lateral direction of the annular main body 4212 . The outer baffle wall 4214 can be sleeved on the periphery of the annular main body 4212 and/or the coil 422 at intervals. Specifically, according to actual needs, part of the outer baffle wall 4214 can be sleeved on the periphery of the annular main body 4212 and the coil 422, and part of the outer baffle wall 4212 can be sleeved on the outer periphery of the annular main body 4212. peripheral. It should be pointed out that, in this embodiment, the part of the outer baffle wall 4214 close to the buried wire groove 4211 is sleeved on the periphery of the part of the annular main body 4212 . Specifically, the outer baffle wall 4214 is disposed on the side of the support flange 4213 away from the core casing 41 . Wherein, the outer side wall of the annular body 4212 , the side wall of the support flange 4213 away from the movement casing 41 and the inner side wall of the outer baffle wall 4214 together define the buried wire groove 4211 .

In one embodiment, the annular body 4212 and the support flange 4213 are provided with a wire channel 424 , and the inner lead 423 extends into the buried wire groove 4211 through the wire channel 424 .

The wiring channel 424 includes a sub wiring channel 4241 located on the annular main body 4212 and a sub wiring channel 4242 located on the support flange 4213 . The sub-routing channel 4241 is arranged through the inner and outer side walls of the annular main body 4212, and a routing port 42411 is provided on the side of the annular main body 4212 close to the coil 422 that communicates with one end of the sub-routing channel 4241, and is close to the support flange. The side of the 4213 facing the inside of the core casing 41 is provided with a routing port 42412 that communicates with the other end of the sub routing channel 4241; On the side of the support flange 4213 facing the inside of the core housing 41, a wiring port 42421 is provided which communicates with one end of the sub wiring channel 4242. The wiring port 42422 at one end. Wherein, the cable opening 42412 and the cable opening 42421 communicate with each other through the space between the support flange 4213 and the annular body 4212 .

Further, the inner lead 423 can enter the wiring opening 42411 and extend along the sub wiring channel 4241, and pass through the wiring opening 42412 and enter the area between the annular main body 4212 and the supporting flange 4213, and further pass through the wiring opening. 42421 enters the sub-wire channel 4242, and extends into the buried wire groove 4211 after passing through the wire opening 42422.

In one embodiment, a slot 42141 is provided at the top of the outer baffle wall 4214 , and the outer wire 48 can extend into the buried wire slot 4211 through the slot 42141 .

One end of the external wire 48 is disposed on the flexible circuit board 44 , and the flexible circuit board 44 is specifically disposed on the side of the earphone core 42 facing the inside of the core casing 41 .

In this embodiment, the support flange 4213 further extends to the side of the outer blocking wall 4214 away from the annular main body 4212 to form an outer edge. Further, the outer edge abuts against the inner side wall of the movement casing 41 . Specifically, the outer edge of the support flange 4213 is provided with a slot 42131, so that the outer wire 48 located on the side of the earphone core 42 facing the inner side of the core case 41 can extend through the slot 42131 to the support flange The side of the 4213 facing the outside of the movement casing 41 extends to the slot 42141 and enters the buried wire slot 4211 from the slot 42141 .

Further, the inner side wall of the core casing 41 is provided with a guide groove 416 whose one end is located on one side of the flexible circuit board 44 and the other end communicates with the slot 42131 and extends in the direction toward the outside of the core casing 41, so that the The external wires 48 extend from the flexible circuit board to the second wiring grooves 3331 through the guide grooves 416 .

In one embodiment, the bracket 421 further includes two side walls 4215 spaced apart along the circumference of the annular main body 4212 and connecting the annular main body 4212 , the support flange 4213 and the outer baffle wall 4214 , and further on the two side baffle walls 4215 A buried wire slot 4211 is defined therebetween.

Specifically, the two side blocking walls 4215 are oppositely disposed on the support flange 4213 and protrude toward the outer side of the core casing 41 along the support flange 4213 . Among them, the side of the two side blocking walls 4215 facing the annular main body 4212 is connected with the outer side wall of the annular main body 4212, and the side away from the annular main body 4212 is terminated at the outer side wall of the outer blocking wall 4214, and the wiring port 42422 and the opening The slot 42141 is defined between the two side walls 4215, so that the inner lead 423 passed through the wire opening 42422 and the outer wire 48 entered by the slot 42141 extend into the buried wire slot 4211 defined by the two side walls 4215 among.

The present application also provides a bone conduction earphone core. In an embodiment of the bone conduction earphone core, the bone conduction earphone core can have the same structure and function as the bone conduction earphone core in the above embodiment. It is applied to bone conduction speaker devices, or other electronic devices that can transmit sound through bone conduction technology. For related details, please refer to the above-mentioned implementation manner, which will not be repeated here.

The above description is only an embodiment of the present application, and is not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies Fields are similarly included within the scope of patent protection of this application.

Claims (10)

1. The utility model provides a battery pack, its characterized in that, battery pack include the battery and with battery electric connection's softness circuit board, the battery includes electric core, electric core includes body region and sealing area, the thickness in body region is greater than the thickness in sealing area, so that the side surface in sealing area with the side surface in body region is the ladder setting, softness circuit board include first plate body and with the second plate body that first plate body is connected, first plate body turns over a setting, so that the second plate body be located sealing area with the space that body region formed.

2. The battery module according to claim 1, wherein the second board has a plurality of bonding pads disposed thereon, and the plurality of bonding pads includes two first bonding pads electrically connected to the positive terminal and the negative terminal of the battery by first flexible leads disposed on the first board and the second board, respectively.

3. The battery module according to claim 2, wherein the plurality of bonding pads comprises a plurality of second bonding pads, the plurality of second bonding pads are divided into at least two groups, and the second bonding pads in each group are electrically connected to each other by a second flexible lead disposed on the second board.

4. The battery module according to claim 3, wherein the number of the second bonding pads in each group is two, and the two second bonding pads in each group are respectively connected with a functional element through a wire, so as to connect two corresponding functional elements together through the second flexible lead.

5. The battery pack of claim 3, wherein the second pads in each group are spaced apart along a width of the second plate and are offset from each other along a length of the second plate such that the second pads in each group are spaced apart in a step.

6. The battery module according to claim 3, wherein the first board is connected to a middle region of the second board, the two first pads are located in the middle region of the second board, and the plurality of second pads are distributed on two sides of the two first pads.

7. The battery pack of claim 6, wherein the first plate and the second plate are each rectangular in shape such that the first plate and the second plate are arranged in a T-shape.

8. The battery assembly of claim 1, wherein the battery further comprises a hard circuit board disposed on a side surface of the sealing area, wherein the positive terminal and the negative terminal of the battery are disposed on the hard circuit board, and the first plate is attached and fixed to the hard circuit board.

9. The battery pack of claim 8, wherein the rigid circuit board further has a protection circuit disposed thereon for overload protection of the battery.

10. A bone conduction speaker device, characterized in that the bone conduction speaker device comprises a battery assembly according to any of claims 1-9.

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