CN214756021U

CN214756021U - Vibration device

Info

Publication number: CN214756021U
Application number: CN202121237248.1U
Authority: CN
Inventors: 张雨晴; 王永强; 高全祥
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-11-16
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a vibration device, which comprises a shell, a stator and a vibrator, wherein one of the stator and the vibrator comprises a magnetic circuit structure, and the other of the stator and the vibrator comprises a coil structure; the coil structure comprises an iron core, a coil wound on the iron core and two magnetic conduction pieces fixed at two ends of the iron core, wherein the end part of the iron core is matched with the corresponding magnetic conduction piece to form a magnetic conduction bulge; the magnetic circuit structure comprises two first magnetic steels, two second magnetic steels and two third magnetic steels, the coil structure is arranged between the two first magnetic steels, the magnetic poles of the two first magnetic steels facing the coil structure are the same, and each magnetic conduction bulge faces one first magnetic steel; the two second magnetic steels are respectively arranged at two sides of the coil structure, and the magnetic poles of the two second magnetic steels facing the magnetic conduction piece are opposite; the two third magnetic steels are respectively arranged at two sides of the coil structure, and the magnetizing directions of the third magnetic steels and the second magnetic steels which are arranged side by side are opposite. The utility model discloses can make vibrating device can realize the vibration of more directions to satisfy the diversified demand of consumer electronics product.

Description

Vibration device

Technical Field

The utility model relates to a vibration feedback technical field, in particular to vibrating device.

Background

With the continuous development of science and technology, the related technology of vibration devices (such as vibration exciters and the like) is gradually mature, and more consumer electronic products using the vibration devices are provided, and the trend of diversification is presented; this also places higher demands on the performance and functionality of the vibrating device. However, most of the existing vibration devices can only realize one-way vibration, for example, vertical vibration, and thus it is difficult to satisfy the diversified demands of consumer electronic products.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a vibration device, which can realize vibration in more directions to satisfy the diversified demands of consumer electronic products.

An embodiment of the present invention provides a vibration device, which includes a housing, a stator, and a vibrator, wherein the stator and the vibrator are both accommodated in an accommodating chamber enclosed by the housing, one of the stator and the vibrator includes a magnetic circuit structure, the other of the stator and the vibrator includes a coil structure,

the coil structure includes:

an iron core;

the coil is wound on the iron core and is positioned between two ends of the iron core; and

the two magnetic conduction pieces are respectively fixed at two ends of the iron core, and the end parts of the iron core are matched with the corresponding magnetic conduction pieces to form magnetic conduction bulges;

the magnetic circuit structure includes:

the coil structure is arranged between the two first magnetic steels, the surface of each magnetic conduction piece, which is back to the coil, faces one first magnetic steel, the magnetic poles of the two first magnetic steels, which face the coil structure, are the same, and each magnetic conduction bulge faces one first magnetic steel;

the two second magnetic steels are arranged oppositely, the two second magnetic steels are respectively arranged on two sides of the coil structure, one of the two magnetic conduction pieces is arranged between the two second magnetic steels, and the magnetic poles of the two second magnetic steels facing the magnetic conduction pieces are opposite;

the third magnet steel of two relative settings, two the third magnet steel is located respectively the both sides of coil structure, and each the third magnet steel is in with one the second magnet steel sets up side by side in the axial of coil, and sets up side by side the third magnet steel with the direction of magnetization of second magnet steel is opposite, two wherein another of magnetic conduction spare is located two between the third magnet steel.

In an embodiment of the present invention, the arrangement direction of the two first magnetic steels is defined as a first direction, and the arrangement direction of the two second magnetic steels is defined as a second direction;

the coil structure comprises two iron cores and two coils, wherein the two iron cores are arranged side by side in a direction perpendicular to the first direction and the second direction, and each coil is wound on one iron core.

In an embodiment of the present invention, the magnetic conduction member includes:

the bearing part extends in a direction perpendicular to both the first direction and the second direction;

the pressure-connection part extends along a direction perpendicular to the first direction and the second direction, and the bearing part and the pressure-connection part are arranged side by side in the second direction; and

the supporting part is supported between the bearing part and the crimping part and located between two ends of the bearing part, the supporting part divides the space between the bearing part and the crimping part into two fixed positions, and the two fixed positions are respectively used for inserting two ends of the iron core.

In an embodiment of the present invention, the iron core is inserted into the end of the fixing portion protruding out of the magnetic conductive member facing away from the coil, so as to form the magnetic conductive protrusion.

The utility model discloses an in the embodiment, magnetic structure is fixed in accept the chamber wall in chamber, coil structure passes through elastic component suspension in accept the intracavity, with magnetic structure orders about down the vibration.

In an embodiment of the present invention, the accommodating cavity has two oppositely disposed first sidewalls and two oppositely disposed second sidewalls, and the two second sidewalls are sandwiched between the two first sidewalls;

the two first magnetic steels are respectively fixed on the two first side walls, the two second magnetic steels are respectively fixed on the two second side walls, and the two third magnetic steels are respectively fixed on the two second side walls;

the elastic assembly comprises two elastic sheets which are of a planar structure, the two elastic sheets are arranged oppositely, the coil structure is clamped between the two elastic sheets, one side of the coil structure is connected to one second side wall through one elastic sheet, and the other side of the coil structure is connected to the other second side wall through the other elastic sheet.

In an embodiment of the present invention, the bearing portion and the press-fit portion of the magnetic conductive member are respectively fixedly connected to the two elastic pieces.

the insertion part is provided with a first end face and a second end face which are arranged oppositely, the first end face is arranged towards the first magnetic steel, the second end face is arranged towards the other magnetic conduction piece, the second end face is provided with two fixing grooves, the two fixing grooves are arranged at intervals along the second direction, and the two fixing grooves are respectively used for inserting the end parts of the two iron cores;

the first magnetic conduction part is convexly arranged on the first end face and is arranged towards the first magnetic steel to form the magnetic conduction bulge; and

and the two second magnetic conduction parts are respectively convexly arranged on two side surfaces of the insertion part, which are back to back, and are respectively arranged towards the two second magnetic steels or respectively arranged towards the two third magnetic steels.

The utility model discloses an in the embodiment, coil structure is fixed in accept the chamber wall in chamber, magnetic circuit structure pass through elastic component suspension in accept the intracavity, in order to coil structure orders about down the vibration.

the magnetic circuit structure further comprises a mass block, an avoidance hole is formed in the surface, facing the second side wall, of the mass block, and the coil structure is located in the avoidance hole and fixed to the second side wall; the first magnetic steel, the second magnetic steel and the third magnetic steel are all fixed on the hole wall of the avoidance hole;

the elastic assembly comprises two elastic sheets which are arranged at intervals along the first direction and are respectively positioned on two sides of the mass block, one side of the mass block is connected to one first side wall through one elastic sheet, and the other side of the mass block is connected to the other first side wall through the other elastic sheet.

According to the technical scheme of the utility model, under the action of the magnetic circuit structure, the coil structure can obtain driving force in at least two directions; at this time, by designing the corresponding elastic components, the vibration device can have modes with different frequencies, so that resonance occurs in at least two directions to obtain the vibration sensations with different frequencies. Namely, the vibration device can realize vibration in more directions, thereby meeting the diversified demands of consumer electronic products.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded view of an embodiment of the vibration device of the present invention;

FIG. 2 is an enlarged view of the magnetic conducting member of FIG. 1;

FIG. 3 is a schematic view of the vibration device shown in FIG. 1 with the parts assembled and the upper housing hidden;

fig. 4 is a schematic view of magnetizing directions (indicated by dotted arrows in the figure) of a first magnetic steel, a second magnetic steel and a third magnetic steel of the vibration device in fig. 1;

FIG. 5 is a schematic illustration of the magnetic field (indicated by the dashed arrows) generated by the coil structure of the vibration apparatus of FIG. 1 after energization;

fig. 6 is an exploded view of another embodiment of the vibration device of the present invention;

FIG. 7 is an enlarged view of the magnetic conducting member of FIG. 6;

fig. 8 is a schematic view of the magnetizing directions (indicated by dashed arrows in the figure) of the first magnetic steel, the second magnetic steel and the third magnetic steel of the vibrating device in fig. 6;

fig. 9 is a schematic diagram of the magnetic field (indicated by the dashed arrow in the figure) generated after the coil structure of the vibration device of fig. 6 is energized.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Vibration device	511a	Bearing part
10	Shell body	513a	Crimping part
				10a	Containing cavity		515a	Supporting part
11	Upper casing	517a	Fixed position
				13	Lower casing	511b	Plug-in part
30	Magnetic circuit structure	513b	A first magnetic conductive part
				31	First magnetic steel	515b	Second magnetic conductive part
33	Second magnetic steel	517b	Fixing groove
				35	Third magnetic steel	53	Iron core
37	Mass block	55	Coil
				371	Avoiding hole	70	Elastic component
50	Coil structure	71	Spring plate
				51	Magnetic conduction piece	73	Stop block

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

With the continuous development of science and technology, the related technology of the vibration device is gradually mature, and more consumer electronic products using the vibration device are provided, and the trend of diversification is presented; this also places higher demands on the performance and functionality of the vibrating device. However, most of the existing vibration devices can only realize one-way vibration, for example, vertical vibration, and thus it is difficult to satisfy the diversified demands of consumer electronic products.

To the technical problem, the utility model provides a vibrating device aims at making vibrating device can realize the vibration of more directions to satisfy the diversified demand of consumer electronics product.

It can be understood that the present invention provides a vibration device that can be applied to electronic devices (including consumer electronics), such as but not limited to mobile phones, notebook computers, tablet computers, Personal Digital Assistants (PDAs), electronic book readers, MP3 (Moving Picture Experts Group Audio Layer III) players, MP4 (Moving Picture Experts Group Audio Layer IV) players, wearable devices, navigators, handheld game consoles, etc.

The specific structure of the vibration device provided by the present invention will be described in the following embodiments, and the vibration device is described by taking a horizontal position as an example:

as shown in fig. 1 to 3, in an embodiment of the vibration device 100 of the present invention, the vibration device 100 includes a housing 10, a stator and a vibrator, the stator and the vibrator are both accommodated in an accommodating cavity 10a enclosed by the housing 10, one of the stator and the vibrator includes a magnetic circuit structure 30, the other of the stator and the vibrator includes a coil structure 50,

the coil structure 50 includes:

an iron core 53;

a coil 55, wherein the coil 55 is wound around the iron core 53 and is located between two ends of the iron core 53; and

the two magnetic conduction pieces 51 are respectively fixed at two ends of the iron core 53, and the end part of the iron core 53 is matched with the corresponding magnetic conduction piece 51 to form a magnetic conduction bulge;

the magnetic circuit structure 30 includes:

the coil structure 50 is arranged between the two first magnetic steels 31, the surface of each magnetic conductive member 51, which faces away from the coil 55, is arranged facing one first magnetic steel 31, the magnetic poles of the two first magnetic steels 31, which face the coil structure 50, are the same, and each magnetic conductive protrusion is arranged facing one first magnetic steel 31;

the two second magnetic steels 33 are arranged oppositely, the two second magnetic steels 33 are respectively arranged on two sides of the coil structure 50, one of the two magnetic conductors 51 is arranged between the two second magnetic steels 33, and the magnetic poles of the two second magnetic steels 33 facing the magnetic conductors 51 are opposite;

two relative third magnet steel 35 that set up, two third magnet steel 35 locates respectively coil structure 50's both sides, and each third magnet steel 35 and one second magnet steel 33 is in set up side by side in the axial of coil 55, and set up side by side third magnet steel 35 with second magnet steel 33's magnetization opposite direction, two wherein another of magnetic conduction piece 51 locates two between the third magnet steel 35.

In this embodiment, the housing 10 is substantially rectangular, so that the accommodating cavity 10a therein has a top wall, a bottom wall, a left side wall, a right side wall, a rear side wall and a front side wall. At this time, in the coil structure 50, the two magnetic conduction members 51 are respectively located on the left side of the accommodating cavity 10a and the right side of the accommodating cavity 10 a; the iron core 53 is a strip-shaped structure and extends along the left and right direction, and two ends of the iron core are respectively fixed with the two magnetic conduction pieces 51; the coil 55 is formed by winding a wire, and has a substantially hollow columnar structure, and the iron core 53 is inserted therein.

Further, in the magnetic circuit structure 30, one first magnetic steel 31 is located on the left side of the accommodating cavity 10a, and is disposed between the left magnetic conductive member 51 on the left side and the left side wall of the accommodating cavity 10 a; the other first magnetic steel 31 is located on the right side of the accommodating cavity 10a, and is disposed between the right magnetic conductive member 51 and the right sidewall of the accommodating cavity 10 a. Compared with the third magnetic steels 35, the second magnetic steels 33 are arranged on the left side of the accommodating cavity 10a, and the third magnetic steels 35 are arranged on the right side of the accommodating cavity 10 a; wherein, a second magnetic steel 33 is positioned at the top of the containing cavity 10a and is adjacent to the top wall of the containing cavity 10 a; the other second magnetic steel 33 is located at the bottom of the containing cavity 10a and is adjacent to the bottom wall of the containing cavity 10 a. Similarly, a third magnetic steel 35 is located at the top of the containing cavity 10a and is adjacent to the top wall of the containing cavity 10 a; the other third magnetic steel 35 is located at the bottom of the containing cavity 10a and is adjacent to the bottom wall of the containing cavity 10 a. That is, the second magnetic steel 33 and the third magnetic steel 35 located at the top of the housing chamber 10a are arranged side by side in the left-right direction, and the second magnetic steel 33 and the third magnetic steel 35 located at the bottom of the housing chamber 10a are also arranged side by side in the left-right direction.

In the present embodiment, the magnetization directions of the first magnetic steel 31, the second magnetic steel 33, and the third magnetic steel 35 are arranged as follows (specifically, see fig. 4):

(1) the magnetizing direction of the first magnetic steel 31 on the left side is leftward, and the magnetizing direction of the first magnetic steel 31 on the right side is rightward;

(2) the magnetizing directions of the two second magnetic steels 33 are both upward, and the magnetizing directions of the two third magnetic steels 35 are both downward;

based on the foregoing configuration, it can be understood that when the coil 55 is energized, a magnetic field as shown in fig. 5 can be generated. At this time, under the combined action of the two first magnetic steels 31, the magnetic circuit structure 30 can generate a leftward driving force for the coil structure 50, so that the coil structure 50 obtains a leftward movement tendency; meanwhile, under the combined action of the two second magnetic steels 33 and the two third magnetic steels 35, the magnetic circuit structure 30 can generate an upward driving force to the coil structure 50, so that the coil structure 50 obtains an upward movement tendency. When the current in the coil 55 is reversed, the magnetic structure 30 can generate a rightward driving force to the coil structure 50, so that the coil structure 50 obtains a rightward movement tendency; at the same time, the magnetic structure 30 can also generate a downward driving force to the coil structure 50, so that the coil structure 50 obtains a downward movement tendency. In other words, under the action of the magnetic circuit structure 30, the coil structure 50 can obtain driving forces in at least two directions; at this time, by designing the corresponding elastic member 70, the vibration device 100 can have modes with different frequencies, so as to resonate in at least two directions, thereby obtaining different frequencies of vibrations. That is, the vibration device 100 can realize vibration in more directions, thereby satisfying the diversified demands of consumer electronics.

In the present embodiment, the housing 10 is mainly formed by covering the upper case 11 and the lower case 13. And, the upper casing 11 includes a top plate and four side plates located around the top plate, and the lower casing 13 is a plate structure and covers the bottom of the upper casing 11 to form an accommodation cavity 10a by enclosing with the top plate and the four side plates. It is understood that the upper case 11 and the lower case 13 are covered to facilitate the assembly and disassembly of the housing 10, thereby facilitating the assembly of the stator, the vibrator, the elastic member 70 (i.e., the related structure for suspending the vibrator in the receiving cavity 10 a), and the like.

Also, in the present embodiment, the stator includes the magnetic circuit structure 30, and the vibrator includes the coil structure 50; that is, the magnetic circuit structure 30 is arranged so that it does not vibrate and the coil structure 50 vibrates. Of course, in other embodiments, the opposite may be true: the vibrator includes a magnetic circuit structure 30, and the stator includes a coil structure 50; that is, the coil structure 50 is arranged so as not to vibrate and the magnetic path structure 30 vibrates.

In addition, it can be understood that, in other embodiments, the magnetizing direction of the first magnetic steel 31 on the left side may also be adjusted to the right, and the magnetizing direction of the first magnetic steel 31 on the right side may also be adjusted to the left; as long as the magnetic poles of the two first magnetic steels 31 facing the coil structure 50 are ensured to be the same. As for the second magnetic steel 33 and the third magnetic steel 35, as long as the magnetizing directions of the two second magnetic steels 33 are the same, the magnetizing directions of the two third magnetic steels 35 are the same, and the magnetizing directions of the second magnetic steels 33 are opposite to the magnetizing directions of the third magnetic steels 35.

Furthermore, the magnetic conducting member 51 may be made of the same material as the iron core 53 to better guide the magnetic field.

As shown in fig. 1 to fig. 3, in an embodiment of the vibration device 100 of the present invention, the arrangement direction of the two first magnetic steels 31 is defined as a first direction, and the arrangement direction of the two second magnetic steels 33 is defined as a second direction;

the coil structure 50 includes two iron cores 53 and two coils 55, the two iron cores 53 are arranged side by side in a direction perpendicular to both the first direction and the second direction, and each coil 55 is wound around one iron core 53.

In this embodiment, the direction from the left to the right is the first direction, and the direction from the bottom to the top is the second direction. That is, the two cores 53 are each extended in the left-right direction, and are arranged side by side at an interval in the front-rear direction. Each iron core 53 is sleeved with a coil 55, and the two coils 55 extend along the left and right direction and are arranged side by side at intervals in the front and rear direction.

It can be understood that, in the present embodiment, the design of "dual iron core 53+ dual coil 55" is adopted, which can effectively enhance the interaction between the magnetic circuit structure 30 and the coil structure 50, so that the vibrator obtains stronger driving force, the vibration performance of the vibrator is improved, and the vibration sense of the vibration device 100 is more excellent. Meanwhile, the design of the "double iron cores 53+ double coils 55" is also beneficial to the balance and stability of the coil structure 50, so that the magnetic circuit structure 30 and the coil structure 50 are more stable and reliable in matching, the stability and reliability of the operation of the vibration device 100 are improved, and the excellent vibration feedback is further beneficial to providing users.

As shown in fig. 1 to fig. 3, in an embodiment of the present invention of the vibration device 100, the magnetic conducting member 51 includes:

a supporting portion 511a, the supporting portion 511a extending in a direction perpendicular to both the first direction and the second direction;

a crimping part 513a, wherein the crimping part 513a is arranged to extend in a direction perpendicular to both the first direction and the second direction, and the supporting part 511a and the crimping part 513a are arranged side by side in the second direction; and

the supporting portion 515a is supported between the supporting portion 511a and the crimping portion 513a and located between two ends of the supporting portion 511a, the supporting portion 515a divides a space between the supporting portion 511a and the crimping portion 513a into two fixing positions 517a, and the two fixing positions 517a are respectively used for inserting end portions of the two iron cores 53.

Namely, the magnetic conductive member 51 is in an "i" shape. It will be appreciated that the support portion 515a is arranged such that the two cores 53 can be spaced apart by a certain distance, thereby avoiding interference between the two coils 55 and ensuring stability of the magnetic field generated by the coil structure 50. Meanwhile, the supporting part 511a and the crimping part 513a clamp and fix the end of the iron core 53, so that the stability of the iron core 53 is guaranteed, and the stability of the coil structure 50 is guaranteed, thereby being beneficial to improving the stability of interaction between the magnetic circuit structure 30 and the coil structure 50, further being beneficial to improving the stability of vibrator vibration, and being beneficial to improving the vibration performance of the vibrator.

Meanwhile, it can be understood that the magnetic conduction member 51 of the present embodiment has the advantages of simple structure, convenient manufacture, fast assembly, etc.

As shown in fig. 1 to fig. 3, in an embodiment of the vibration device 100 of the present invention, the end of the iron core 53 inserted into the fixing location 517a protrudes out of the surface of the magnetic conductive member 51 facing away from the coil 55, so as to form the magnetic conductive protrusion. So, can be further favorable to inserting of iron core 53 to locate the end specification magnetic field of fixed position 517a to produce stronger interact with first magnet steel 31, thereby make the oscillator obtain more powerful drive power, make the vibration performance of oscillator promote, and then make vibrating device 100's vibration sense more excellent.

As shown in fig. 1 to fig. 3, in an embodiment of the vibration device 100 of the present invention, the magnetic structure 30 is fixed on the wall of the receiving cavity 10a, and the coil structure 50 is suspended in the receiving cavity 10a through the elastic component 70 to vibrate under the driving of the magnetic structure 30.

That is, the present embodiment adopts a configuration mode in which the coil structure 50 functions as a vibrator and the magnetic circuit structure 30 functions as a stator. It can be understood that, in the technical solution of this embodiment, the mass block 37 is eliminated, and the coil structure 50 is directly used as a vibrator, which is beneficial to reducing the production cost and avoiding the waste of resources.

Specifically, to realize the above configuration mode, the vibration device 100 may be configured as follows:

referring to fig. 4 and fig. 5, in an embodiment of the vibration device 100 of the present invention, the receiving cavity 10a has two oppositely disposed first sidewalls and two oppositely disposed second sidewalls, and the two second sidewalls are sandwiched between the two first sidewalls;

the two first magnetic steels 31 are respectively fixed on the two first side walls, the two second magnetic steels 33 are respectively fixed on the two second side walls, and the two third magnetic steels 35 are respectively fixed on the two second side walls;

the elastic assembly 70 includes two elastic sheets 71, the elastic sheets 71 are planar structures, the two elastic sheets 71 are disposed oppositely, the coil structure 50 is sandwiched between the two elastic sheets 71, one side of the coil structure 50 is connected to one of the second side walls through one of the elastic sheets 71, and the other side of the coil structure 50 is connected to the other of the second side walls through the other of the elastic sheets 71.

In this embodiment, the two first side walls are opposite to each other, namely, the left side wall and the right side wall of the accommodating cavity 10 a; two oppositely disposed second side walls, namely, the top wall and the bottom wall of the housing cavity 10 a. Therefore, the two spring pieces 71 sandwich the coil structure 50 in the vertical direction. At this time, in the coil structure 50, the upper surfaces of the two crimping portions 513a are connected to the top wall of the accommodating cavity 10a through the upper elastic sheet 71, and the lower surfaces of the two supporting portions 511a are connected to the bottom wall of the accommodating cavity 10a through the lower elastic sheet 71, so that the coil structure 50 is suspended in the accommodating cavity 10a, and the coil structure 50 vibrates when serving as a vibrator.

That is, the upper elastic sheet 71 is supported between the top wall of the accommodating cavity 10a and the coil structure 50, and is used for buffering and supporting the vibration of the coil structure 50, so that not only the stability of the coil structure 50 in the vibration process can be improved, but also the offset of the coil structure 50 in the vibration process can be reduced. The lower elastic sheet 71 is supported between the bottom wall of the accommodating cavity 10a and the coil structure 50 and is also used for buffering and supporting the vibration of the coil structure 50, so that the stability of the coil structure 50 in the vibration process can be improved, and the offset of the coil structure 50 in the vibration process can be reduced. In addition, the two elastic pieces 71 are arranged in a manner of "one on top of the other", so that the coil structure 50 can be buffered and supported in a bidirectional manner, the stability of the coil structure 50 in the vibration process is further improved, and the vibration performance of the vibrator is further improved.

In addition, it should be noted that, both the elastic pieces 71 are of a planar structure, and have smaller offset in the non-vibration direction compared with the elastic pieces 71 of other structures; moreover, the stress in the vibration is small, and the bending can be avoided, so that the reliability of the vibration device 100 can be improved. In addition, the elastic sheet 71 with the planar structure is simpler to process and manufacture, the assembly process is simpler, the cost of the vibration device 100 can be optimized, and the resource waste is avoided.

In practical application, the connection between the elastic sheet 71 and the wall of the accommodating cavity 10a can be realized by the stopper 73, and the connection between the elastic sheet 71 and the coil structure 50 can also be realized by the stopper 73. Specifically, the connection between the stopper 73 and the wall of the receiving cavity 10a can be achieved by, for example, gluing, and the connection between the stopper 73 and the coil structure 50 can also be achieved by, for example, gluing.

As shown in fig. 3 to fig. 5, in an embodiment of the vibration device 100 of the present invention, the supporting portion 511a and the pressing portion 513a of the magnetic conductive member 51 are respectively and fixedly connected to the two elastic sheets 71. It can be understood that, the supporting portion 511a and the crimping portion 513a of the magnetic conductive member 51 are used to complete the connection with the elastic sheets 71 on the two sides, so that not only can the stable connection between the coil structure 50 and the elastic sheets 71 on the two sides be realized, but also a more stable structural foundation is provided for the vibration of the coil structure 50, and the vibration performance of the vibrator is ensured. And the junction of the coil structure 50 and the spring 71 can be arranged at a position far away from the coil 55, so that the coil 55 is prevented from being affected during assembly and vibration, the integrity of the coil 55 is ensured, the reliability of the coil structure 50 is improved, and the reliability of the vibration device 100 is improved.

As shown in fig. 6 to 9, in an embodiment of the present invention of the vibration device 100, the magnetic conducting member 51 includes:

the insertion part 511b is provided with a first end face and a second end face which are arranged back to back, the first end face is arranged towards the first magnetic steel 31, the second end face is arranged towards the other magnetic conductive piece 51, the second end face is provided with two fixing grooves 517b, the two fixing grooves 517b are arranged at intervals along the second direction, and the two fixing grooves 517b are respectively used for inserting the end parts of the two iron cores 53;

the first magnetic conduction part 513b is convexly arranged on the first end surface and is arranged towards the first magnetic steel 31 to form the magnetic conduction bulge; and

the two second magnetic conductive portions 515b are respectively and convexly arranged on two opposite side surfaces of the insertion portion 511b, and are respectively arranged towards the two second magnetic steels 33 or the two third magnetic steels 35.

Specifically, taking the magnetic conduction member 51 located on the left side of the accommodating cavity 10a as an example:

the inserting portion 511b is substantially a block structure, a surface of the inserting portion 511b facing the left side wall of the accommodating cavity 10a is a first end surface, and a surface thereof opposite to the first end surface is a second end surface. That is, the first end surface of the insertion portion 511b faces to the left and is disposed toward the first magnetic steel 31 on the left, and the second end surface of the insertion portion 511b faces to the right and is disposed toward the magnetic conductive member 51 on the right. The left ends of two iron cores 53 are inserted respectively in two fixed slots 517b of locating this grafting portion 511b, have ensured iron core 53's stability, have ensured coil structure 50's stability to be favorable to promoting the stability of interact between magnetic structure 30 and the coil structure 50, be favorable to promoting the stability of oscillator vibration, and then be favorable to promoting the vibration performance of oscillator.

The first magnetic conductive part 513b is also substantially in a block structure, and is convexly disposed on the first end surface of the insertion part 511b, and is disposed toward the first magnetic steel 31 on the left side, so as to be beneficial to guiding the magnetic field generated by the coil structure 50 to act on the first magnetic steel 31 on the left side, so as to strengthen the interaction between the coil structure 50 and the first magnetic steel 31, thereby enabling the vibrator to obtain stronger driving force, and enabling the vibration performance of the vibrator to be more excellent.

The second magnetic conductive portion 515b is also substantially in a block shape, one second magnetic conductive portion 515b is disposed in a protruding manner on a rear side surface of the insertion portion 511b and faces the second magnetic steel 33 located on a rear side of the accommodating cavity 10a, and the other second magnetic conductive portion 515b is disposed in a protruding manner on a front side surface of the insertion portion 511b and faces the second magnetic steel 33 located on a front side of the accommodating cavity 10 a. The arrangement of the two second magnetic conductive portions 515b is beneficial to guiding the magnetic field generated by the coil structure 50 to act on the two second magnetic steels 33, so as to strengthen the interaction between the coil structure 50 and the second magnetic steels 33, so that the vibrator obtains stronger driving force, and the vibration performance of the vibrator is more excellent.

On the other hand, taking the magnetic conduction member 51 located on the right side of the accommodating cavity 10a as an example:

the inserting portion 511b is substantially a block structure, a surface of the inserting portion 511b facing the right side wall of the accommodating cavity 10a is a first end surface, and a surface thereof opposite to the first end surface is a second end surface. That is, the first end surface of the insertion portion 511b faces to the right and is disposed toward the right first magnetic steel 31, and the second end surface of the insertion portion 511b faces to the left and is disposed toward the left magnetic conductive member 51. The right-hand member of two iron cores 53 is inserted respectively and is located in two fixed slots 517b of this grafting portion 511b, has ensured iron core 53's stability, has ensured coil structure 50's stability to be favorable to promoting the stability of interact between magnetic structure 30 and the coil structure 50, be favorable to promoting the stability of oscillator vibration, and then be favorable to promoting the vibration performance of oscillator.

The first magnetic conductive part 513b is also substantially a block-shaped structure, and is convexly disposed on the first end surface of the insertion part 511b, and is disposed toward the first magnetic steel 31 on the right side, so as to facilitate guiding the magnetic field generated by the coil structure 50 to act on the first magnetic steel 31 on the right side, so as to strengthen the interaction between the coil structure 50 and the first magnetic steel 31, thereby enabling the vibrator to obtain stronger driving force, and enabling the vibration performance of the vibrator to be more excellent.

The second magnetic conductive portion 515b is also substantially in a block shape, one second magnetic conductive portion 515b is disposed in a protruding manner on a rear side surface of the insertion portion 511b and faces the third magnetic steel 35 located on a rear side of the accommodating cavity 10a, and the other second magnetic conductive portion 515b is disposed in a protruding manner on a front side surface of the insertion portion 511b and faces the third magnetic steel 35 located on a front side of the accommodating cavity 10 a. The arrangement of the two second magnetic conductive portions 515b is beneficial to guiding the magnetic field generated by the coil structure 50 to match with the two third magnetic steels 35, so as to strengthen the interaction between the coil structure 50 and the third magnetic steels 35, so that the vibrator obtains stronger driving force, and the vibration performance of the vibrator is more excellent.

As shown in fig. 6 to 9, in an embodiment of the vibration device 100 of the present invention, the coil structure 50 is fixed on the wall of the receiving cavity 10a, and the magnetic circuit structure 30 is suspended in the receiving cavity 10a through the elastic component 70 to vibrate under the driving of the coil structure 50.

That is, the present embodiment adopts a configuration mode in which the coil structure 50 functions as a stator and the magnetic circuit structure 30 functions as a vibrator.

Specifically, to realize this configuration mode, the vibration device 100 may be configured as follows:

as shown in fig. 6 to 9, in an embodiment of the vibration device 100 of the present invention, the receiving cavity 10a has two oppositely disposed first sidewalls and two oppositely disposed second sidewalls, and the two second sidewalls are sandwiched between the two first sidewalls;

the magnetic circuit structure 30 further includes a mass block 37, an avoiding hole 371 is formed on a surface of the mass block 37 facing the second side wall, and the coil structure 50 is located in the avoiding hole 371 and fixed to the second side wall; the first magnetic steel 31, the second magnetic steel 33 and the third magnetic steel 35 are all fixed on the hole wall of the avoidance hole 371;

the elastic assembly 70 includes two elastic pieces 71, the two elastic pieces 71 are spaced along the first direction and are respectively located at two sides of the mass block 37, one side of the mass block 37 is connected to one of the first side walls through one of the elastic pieces 71, and the other side of the mass block 37 is connected to the other of the first side walls through the other elastic piece 71.

In this embodiment, the two first side walls are opposite to each other, namely, the left side wall and the right side wall of the accommodating cavity 10 a; two oppositely disposed second side walls, namely, the top wall and the bottom wall of the housing cavity 10 a. Therefore, the two spring pieces 71 sandwich the magnetic structure 30 in the left-right direction. Specifically, in the magnetic circuit structure 30, the left side wall of the mass 37 is connected to the left side wall of the accommodating cavity 10a through the left spring piece 71, and the right side wall of the mass 37 is connected to the right side wall of the accommodating cavity 10a through the right spring piece 71, so that the magnetic circuit structure 30 is suspended in the accommodating cavity 10a, and the magnetic circuit structure 30 vibrates when acting as a vibrator.

That is, the left spring piece 71 is supported between the left wall of the accommodating cavity 10a and the magnetic structure 30 to buffer and support the vibration of the magnetic structure 30, so that the stability of the magnetic structure 30 in the vibration process can be improved, and the offset of the magnetic structure 30 in the vibration process can be reduced. The elastic sheet 71 on the right side is supported between the right side wall of the accommodating cavity 10a and the magnetic structure 30, and is also used for buffering and supporting the vibration of the magnetic structure 30, so that the stability of the magnetic structure 30 in the vibration process can be improved, and the offset of the magnetic structure 30 in the vibration process can be reduced. In addition, the configuration of the two elastic pieces 71 "one left and one right" can also make the magnetic structure 30 obtain two-way buffering and supporting, which can further improve the stability of the magnetic structure 30 in the vibration process, and further improve the vibration performance of the vibrator.

In practical applications, the connection between the elastic sheet 71 and the wall of the accommodating cavity 10a can be realized by a stopper, and the connection between the elastic sheet 71 and the magnetic circuit structure 30 can also be realized by a stopper. Specifically, the connection between the stopper and the wall of the receiving cavity 10a can be realized by, for example, gluing, and the connection between the stopper and the magnetic circuit structure 30 can also be realized by, for example, gluing.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vibration device comprises a shell, a stator and a vibrator, wherein the stator and the vibrator are both accommodated in an accommodating cavity surrounded by the shell, one of the stator and the vibrator comprises a magnetic circuit structure, the other of the stator and the vibrator comprises a coil structure, and the vibration device is characterized in that,

the coil structure includes:

an iron core;

the magnetic circuit structure includes:

2. The vibration apparatus as claimed in claim 1, wherein the arrangement direction of the two first magnetic steels is defined as a first direction, and the arrangement direction of the two second magnetic steels is defined as a second direction;

3. The vibratory apparatus of claim 2 wherein said magnetically permeable member comprises:

4. The vibration apparatus as claimed in claim 3, wherein the end of the iron core inserted into the fixing position protrudes from the surface of the magnetic conductive member facing away from the coil to form the magnetic conductive protrusion.

5. The vibration apparatus as claimed in claim 3, wherein the magnetic circuit structure is fixed to a wall of the receiving cavity, and the coil structure is suspended in the receiving cavity by an elastic member to vibrate under the driving of the magnetic circuit structure.

6. The vibration apparatus as claimed in claim 5, wherein said receiving cavity has two oppositely disposed first sidewalls and two oppositely disposed second sidewalls, and said two second sidewalls are sandwiched between said two first sidewalls;

7. The vibration apparatus as claimed in claim 6, wherein the bearing portion and the press-contact portion of the magnetic conductive member are respectively fixedly connected to the two resilient pieces.

8. The vibratory apparatus of claim 2 wherein said magnetically permeable member comprises:

9. The vibration apparatus as claimed in claim 8, wherein the coil structure is fixed to a wall of the receiving cavity, and the magnetic circuit structure is suspended in the receiving cavity by an elastic member to vibrate under the driving of the coil structure.

10. The vibration apparatus as claimed in claim 9, wherein the receiving cavity has two oppositely disposed first sidewalls and two oppositely disposed second sidewalls, and the two second sidewalls are sandwiched between the two first sidewalls;