CN117714937B - Sound output shell, sound output module and electronic equipment - Google Patents

Abstract

The application relates to the technical field of sound equipment, in particular to a sound output shell, a sound output module and electronic equipment. The sound outlet shell is provided with a sound outlet channel and a first cavity, and the first cavity and the sound outlet channel are arranged in the X-axis direction; in the Z-axis direction forming an included angle with the X-axis direction, one end of the first cavity is provided with a connecting opening, and the first cavity comprises a first cavity and a second cavity which are communicated with each other; in the Y-axis direction forming an included angle with the X-axis direction and the Z-axis direction respectively, the first cavity and the second cavity are arranged, and the sound outlet channel is communicated with the first cavity and the second cavity respectively, so that sound waves formed by the loudspeaker can be transmitted from the first cavity and the second cavity to the sound outlet channel respectively, and the sound outlet area is increased; the width of the sound outlet channel is increased along the direction away from the first cavity, so that the efficiency of sound wave propagation outwards from the sound outlet channel is improved; the sound-emitting shell can reduce the accumulation of sound energy in the first cavity, is favorable for improving high-frequency response and is favorable for improving the resolving power of high-frequency audio.

Description

Sound output shell, sound output module and electronic equipment

Technical Field

The application relates to the technical field of sound equipment, in particular to a sound output shell, a sound output module and electronic equipment.

Background

As electronic devices such as mobile phones and tablet computers develop in the direction of light and thin, the stacking height of the electronic devices is lower and lower, and the space of a sound emitting module including a loudspeaker is limited; the sound emitting module is used for emitting sound (positive sound) from the upper part of the axial lead direction of the loudspeaker, and the sound emitting module is used for emitting sound (side sound) from the side direction, so that stacking of other devices and audio playing of electronic equipment are facilitated.

In the sound emitting module adopting the side sound emitting structure, a resonance peak exists at the medium frequency of about 8KHz to 10KHz, but falls after the resonance peak, and the side sound emitting structure is difficult to exert effect at the high frequency of about 7KHz or above; the frequency response difference of the sound output module to high frequency of about 7KHz and above is better than that of positive sound output, and the analytic power of side sound output to high frequency audio is required to be improved.

Disclosure of Invention

The application provides a sound-emitting shell which is beneficial to improving the resolution of high-frequency audio.

In a first aspect, the present application provides a sound output housing, where the sound output housing has a sound output channel and a first chamber, and the first chamber and the sound output channel are arranged in an X-axis direction; in the Z-axis direction forming an included angle with the X-axis direction, one end of the first chamber is provided with a connecting opening; the first cavity comprises a first cavity and a second cavity which are communicated, and the projection of the first cavity and the connecting opening in the Z-axis direction is overlapped; in the Y-axis direction forming an included angle with the X-axis direction and the Z-axis direction respectively, the first cavity and the second cavity are arranged in a row, and the sound outlet channel is communicated with the first cavity and the second cavity respectively; and/or the width direction of the sound outlet channel is consistent with the Y-axis direction, and the width of the sound outlet channel increases along the direction away from the first cavity.

The first cavity and the sound outlet channel are arranged in the X-axis direction, one end of the first cavity in the Z-axis direction forming an included angle with the X-axis direction is provided with a connecting opening, the connecting opening can be used for covering one side of the loudspeaker, which is provided with the vibrating diaphragm assembly, of the loudspeaker, sound waves formed by the loudspeaker reach the first cavity along the Z-axis direction and then are transmitted to the outside from the sound outlet channel along the X-axis direction, and the sound outlet shell can be used for making side sound, so that the thickness is reduced; the first cavity and the second cavity are arranged in the Y-axis direction forming an included angle with the X-axis direction and the Z-axis direction respectively, and the sound outlet channel is communicated with the first cavity and the second cavity respectively, so that sound waves formed by the loudspeaker are transmitted to the sound outlet channel from the first cavity and the second cavity respectively, the sound outlet area is increased, the accumulation of sound energy in the first cavity is reduced, the high-frequency response is improved, and the resolution capability of high-frequency audio is improved. The width direction of the sound outlet channel is consistent with the Y-axis direction, the width of the sound outlet channel is increased along the direction away from the first cavity, the efficiency of outwards spreading sound waves from the sound outlet channel is improved, the accumulation of sound energy in the first cavity is reduced, the high-frequency response is improved, and the resolution capability of high-frequency audio is improved.

In one possible implementation, in the Y-axis direction, the second cavities are provided at both ends of the first cavity.

In another possible implementation manner, the projection is performed along the Z-axis direction, and a projection boundary is formed on a side, away from the first cavity, of the second cavity; the projection boundary comprises a first end point facing the sound outlet channel and a second end point far away from the sound outlet channel, wherein the first end point and the second end point are connected to form a first virtual straight line, and the second end point is connected in parallel to the X-axis direction to form a second virtual straight line; the distance from the first virtual straight line to the second virtual straight line increases in a direction toward the sound outlet channel.

In another possible implementation, the projected boundary includes a first boundary portion and/or a second boundary portion and/or a third boundary portion; the increasing amplitude of the distance from the first boundary portion to the second virtual straight line decreases in the direction toward the sound outlet passage; the increasing amplitude of the distance from the second boundary portion to the second virtual straight line increases in the direction toward the sound output channel; the distance from the third boundary portion to the second virtual straight line increases by the same magnitude in a direction toward the sound outlet passage.

In another possible implementation, the projected boundary includes a fourth boundary portion and a fifth boundary portion; the distance from the fourth boundary part to the second virtual straight line increases in the direction towards the sound outlet channel by the same magnitude; the distance from the fifth boundary portion to the second virtual straight line increases in the direction toward the sound outlet passage by the same amount as and greater than the distance from the fourth boundary portion to the second virtual straight line.

In another possible implementation manner, the projection is performed along the Z-axis direction, and a projection boundary is formed on the side, away from the first cavity, of the second cavity, wherein the projection boundary comprises a first end point facing the sound outlet channel and a second end point away from the sound outlet channel; along the X-axis direction, part of the first cavity is arranged at one side of the second endpoint far away from the sound outlet channel.

In another possible implementation manner, the first cavity further includes a third cavity in communication with the first cavity, the third cavity being disposed at an end of the first cavity away from the sound outlet channel, the third cavity being in communication with the second cavity.

In another possible implementation manner, the sound output housing includes a first wall plate and a second wall plate that are disposed opposite to each other along the Z-axis direction, the second wall plate includes a first plate section and a second plate section that are connected in the X-axis direction, the sound output channel is disposed between the first plate section and the first wall plate, and the first chamber is disposed between the second plate section and the first wall plate; the second plate section is provided with a through hole to form the connecting opening, and one side of the second plate section, which faces the first wall plate, is provided with a boss structure.

In another possible implementation manner, the boundary position of the first cavity and the second cavity is opposite to the boss structure, the boss structure includes a first boss and a second boss, and the first boss and the second boss are arranged at intervals along the X-axis direction.

In another possible implementation manner, the length direction of the first boss is consistent with the X-axis direction, and the length direction of the second boss is consistent with the X-axis direction; the second boss is arranged on one side, far away from the sound outlet channel, of the first boss, and the length of the second boss is smaller than that of the first boss.

In another possible implementation manner, the length direction of the first boss is consistent with the X-axis direction, and the length direction of the second boss is consistent with the X-axis direction; at least one of the first boss and the second boss is provided with a length decreasing in a direction toward the first wall plate.

In another possible implementation manner, the sound output housing includes a first wall plate and a second wall plate which are oppositely arranged along the Z-axis direction, the second wall plate includes a first plate section and a second plate section which are connected in the X-axis direction, the sound output channel is arranged between the first plate section and the first wall plate, the first chamber is arranged between the second plate section and the first wall plate, and a through hole is arranged on the second plate section to form the connection opening; the first panel section has a first panel face facing the first wall panel, and the second panel section has a second panel face facing the first wall panel; in the Z-axis direction, a side of the first plate surface facing the first cavity has a first distance from the first wall plate, and a side of the second plate surface facing the sound outlet channel has a second distance from the first wall plate, wherein the second distance is smaller than the first distance; one end of the side wall surface of the through hole, which faces the first cavity, is provided with a notch communicated with the sound outlet channel, and the side wall surface of the first plate section, which faces the second plate section, forms part of the hole wall surface of the through hole.

In another possible implementation manner, the through hole includes a first hole section and a second hole section arranged along the Z-axis direction, and the second hole Duan Shezhi is on a side of the first hole section away from the first cavity; projecting along the Z-axis direction, wherein at least part of the hole wall surface of the second hole section is arranged outside the hole wall surface of the first hole section; in the Z-axis direction, an end of the second hole section facing the first hole section has a third distance from the first wall plate, the third distance being smaller than the first distance; the side wall surface of the second hole section is provided with the notch, and the side wall surface of the first plate section facing the second plate section forms part of the hole wall surface of the second hole section.

In another possible implementation manner, a convex strip is arranged on one side of the first plate surface facing the first cavity, the extending direction of the convex strip is consistent with the Y-axis direction, and the convex strip forms part of a hole wall surface of the second hole section towards at least part of the side surface of the second plate section and at least part of the side surface of the first plate section towards the second plate section; in the Z-axis direction, a side of the convex strip facing the first wall plate has a fourth distance from the first wall plate, and the fourth distance is larger than the third distance and the second distance.

In another possible implementation manner, a third boss is arranged on one side of the raised line facing the first wallboard, and the third boss is connected with the second board section; the third boss forms part of a hole wall surface of the second hole section towards at least part of a side surface of the second plate section.

In another possible implementation manner, the sound output housing includes a first wall plate and a second wall plate which are oppositely arranged along the Z-axis direction, the second wall plate includes a first plate section and a second plate section which are connected in the X-axis direction, the sound output channel is arranged between the first plate section and the first wall plate, the first chamber is arranged between the second plate section and the first wall plate, and a through hole is arranged on the second plate section to form the connection opening; one of the first plate section and the first wall plate is provided with a support plate, which abuts the other of the first plate section and the first wall plate.

In a second aspect, the present application provides a sound emitting module, where the sound emitting module includes a speaker and the sound emitting housing, and a side of the speaker having a diaphragm assembly covers the connection opening.

In one possible implementation manner, the sound outputting module further includes a cover plate, the cover plate is connected with one side of the sound outputting shell, which has the connection opening, and the sound outputting shell, the speaker and the cover plate enclose to form a second cavity.

In a third aspect, the present application provides an electronic device, where the electronic device includes a device housing and the sound emitting module, and the sound emitting module is disposed in the device housing or a part of the device housing forms at least a part of the sound emitting housing.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of an electronic device according to the present application.

Fig. 2 is an exploded view of an embodiment of the electronic device of the present application.

Fig. 3 is a schematic perspective view of a sound emitting module in the related art.

Fig. 4 is a perspective cross-sectional view of a related art sound emitting module.

Fig. 5 is a perspective cross-sectional view of the audio output module of the related art at another angle.

Fig. 6 is a diagram illustrating a frequency response analysis of a sound emitting module in the related art.

Fig. 7 is a schematic perspective view of an embodiment of an audio module according to the present application.

Fig. 8 is a perspective cross-sectional view of an embodiment of the audio module of the present application.

Fig. 9 is a top view (with a partial structure in section) of another embodiment of the audio module according to the present application.

Fig. 10 is a top view (with a partial structure in section) of another embodiment of the audio module according to the present application.

Fig. 11 is a top view (with a partial structure in section) of another embodiment of the audio module according to the present application.

Fig. 12 is a top view (partially broken away) of another embodiment of the audio module according to the present application.

Fig. 13 is a top view (partially broken away) of another embodiment of the audio module according to the present application.

Fig. 14 is a perspective cross-sectional view of an embodiment of an audio module according to the present application at another angle.

Fig. 15 is a schematic cross-sectional view of an embodiment of the audio module of the present application.

Fig. 16 is a partial enlarged view at B in fig. 15.

Fig. 17 is a partial enlarged view at a in fig. 8.

Fig. 18 is a schematic bottom perspective view of an embodiment of the sound emitting housing of the present application.

Fig. 19 is a schematic perspective view of a speaker in an embodiment of the audio module according to the present application.

Fig. 20 is a schematic partial structure of an embodiment of the audio module according to the present application.

FIG. 21 is a diagram illustrating an exemplary embodiment of a sound module according to the present application.

Fig. 22 is a plan view (partially broken away) of another embodiment of the sound housing of the present application.

Detailed Description

The terms first, second, third and the like in the description and in the claims and in the drawings are used for distinguishing between different objects and not for limiting the specified order.

In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The application provides an electronic device, which can include, but is not limited to, mobile or fixed terminals with audio playing function, such as mobile phones, tablet computers, notebook computers, ultra-mobile Personal Computer (UMPC), handheld computers, interphones, netbooks, POS machines, personal digital assistants (Personal DIGITAL ASSISTANT, PDA), wearable devices, security devices, televisions, and audio boxes.

Fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present application, and fig. 2 is an exploded view of the electronic device 100 according to an embodiment of the present application. Referring to fig. 1 and 2, an electronic device 100 provided by an embodiment of the present application may include: the device includes a device housing 10, a screen 20, a circuit board 30, a battery 40, a camera module 50, a universal serial bus (Universal serial bus, USB) device (not shown), and a sound emitting module 60. It is understood that when the electronic device 100 is other than a mobile phone, the electronic device 100 may not include one or more of the screen 20, the circuit board 30, the battery 40, the camera module 50, and the USB device.

Specifically, referring to fig. 1, a device housing 10 may provide a structural frame for an electronic device 100; for example, in fig. 1 and 2, the device housing 10 may include a center frame 11 and a rear cover 12; when the electronic device 100 has a display function, the electronic device 100 may further include a screen 20. A middle frame 11, a circuit board 30, a battery 40, a camera module 50, a USB device, and a sound emitting module 60 may be provided between the screen 20 and the rear cover 12. Wherein the middle frame 11 may be used as a mounting frame of the electronic apparatus 100, and the circuit board 30, the battery 40, the camera module 50, the USB device, and the sound emitting module 60 may be disposed on the middle frame 11; for example, the circuit board 30, the battery 40, the camera module 50, the USB device, and the sound emitting module 60 are provided on a side of the middle frame 11 facing the rear cover 12, or the circuit board 30, the battery 40, the camera module 50, the USB device, and the sound emitting module 60 may be provided on a side of the middle frame 11 facing the screen 20.

Wherein, middle frame 11 may include middle plate 111 and frame 112, frame 112 sets up a week along the periphery of middle plate 111. In general, the frame 112 may include a top frame, a bottom frame, a left side frame, and a right side frame, which enclose a square ring structure.

Of course, the electronic device 100 may not include the middle frame 11, and the circuit board 30, the battery 40, the camera module 50, the USB device, and the sound emitting module 60 may be fixed on the surface of the screen 20 facing the rear cover 12 or on the surface of the rear cover 12 facing the screen 20 by screwing, clamping, welding, or the like. Among them, the screen 20 is used for displaying images, videos, and the like, and the screen 20 may include a light-transmitting cover plate 22 and a display screen 21 (also referred to as a display panel).

With continued reference to fig. 2, in the electronic device 100 provided in an embodiment of the present application, the circuit board 30 may include a main circuit board 31 and a sub circuit board 32. The main circuit board 31 is used for integrating a control chip, which may be, for example, an application processor (Application Processor, AP) or the like. In some embodiments, the main circuit board 31 is electrically connected to the display screen 21, and the main circuit board 31 is used to control the display screen 21 to display images or videos. The secondary circuit board 32 is used to integrate electronic components such as an antenna (e.g., a 5G antenna) rf front end.

The secondary circuit board 32 is electrically connected with the primary circuit board 31 through the connection structure 70 to realize data and signal transmission between the secondary circuit board 32 and the primary circuit board 31. The connection structure 70 may be a flexible circuit board (Flexible Printed Circuit, FPC), a wire, an enamel wire, or the like.

A USB device, which is an interface device conforming to the USB standard specification, may be connected to the sub-circuit board 32. Specifically, the USB device may be an USB Type C device or the like. The USB device may be connected to a charger via a socket 113 on the bezel 112 to charge the electronic device 100, may be used to transfer data between the electronic device 100 and a peripheral device, and may be used to connect to a headset through which audio may be played. USB devices may also be used to connect other electronic devices.

The audio output module 60 is used for restoring audio electrical signals such as music and voice into sound, and can support the audio play function. In some embodiments, the sound emitting module 60 is electrically connected to the secondary circuit board 32. At this time, the audio signal sent by the main circuit board 31 is transmitted to the sound outputting module 60 through the sub circuit board 32, and is converted into a sound signal by the sound outputting module 60 to be outputted. Specifically, referring to fig. 2 in combination with fig. 1, the housing of the audio module 60 is provided with an audio channel 1010. The sound signal output by the sound output module 60 is output by the sound output channel 1010, the frame 112 is provided with a sound output hole 114, and the sound output hole 114 is communicated with the sound output channel 1010; the sound output from the sound output channel 1010 is output from the sound output hole 114 to the outside of the electronic device 100. Wherein, the sound emitting module 60 is disposed in the device housing 10. Or a portion of the device housing 10 forms at least a portion of the sound outlet housing, it is understood that a portion or all of the sound outlet housing of the sound outlet module 60 is part of the device housing.

In other embodiments, the sound emitting module 60 may also be directly electrically connected to the main circuit board 31 through FPC, wires, enameled wires, etc.

The sound emitting module 60 includes a speaker that may be configured to include a diaphragm assembly, a voice coil, and a magnetic circuit assembly. The vibrating diaphragm assembly, the voice coil and the magnetic circuit assembly can be arranged in sequence, one end of the voice coil is connected with the vibrating diaphragm assembly, and the other end of the voice coil extends towards the magnetic circuit assembly. The voice coil and the magnetic circuit assembly cooperate to drive the vibrating diaphragm assembly to vibrate up and down, so as to push air in the cavity of the sound emitting module 60 to move to generate sound.

Along with the development of electronic devices such as mobile phones and tablet computers in the light and thin directions, the stacking height of the electronic devices is lower and lower, and the sound emitting module 60 is limited in space and emits sound (positive sound) from directly above the axis direction of the speaker, and the sound emitting module emits sound (side sound) from more sides, so that stacking of other devices and audio playing of the electronic devices are facilitated.

Fig. 3 to 5 show a sound emitting module 60a of the related art adopting a side sound emitting structure. Specifically, the sound outlet module 60a includes a speaker 61a and a sound outlet housing 1000a, the sound outlet housing 1000a having a sound outlet channel 1010a and a first chamber 1020a, the first chamber 1020a and the sound outlet channel 1010a being arranged in a left-right direction; in the vertical direction, the lower end of the first chamber 1020a has a connection opening, and the projection of the first chamber 1020a and the connection opening in the vertical direction coincides with each other, which can be understood that the first chamber 1020a is formed by vertically stretching the connection opening.

The speaker 61a has a side of the diaphragm assembly 611a covering the connection opening, so that the first chamber 1020a and the sound outlet channel 1010a form a front sound cavity, and a back sound cavity is formed in the sound outlet module 60a at a side space of the diaphragm assembly 611a facing away from the first chamber 1020 a. Part of the sound waves formed by the sound outputting module 60a are firstly propagated to the first chamber 1020a along the axial line (which can be understood as from the vertical direction) and then propagated outwards from the sound outputting channel 1010a along the left-right direction, so that the sound outputting module 60a forms a side sound outputting structure.

In the related art, referring to fig. 6, the sound emitting module 60a has a resonance peak at an intermediate frequency (see abscissa in the figure) of about 8KHz to 10 KHz; however, the side sounding structure tends to hardly exert an effect at high frequencies of about 7KHz or more, the frequency response of the high frequencies is inferior to that of the positive sounding, and the analytic power of the side sounding to the high frequency audio is required to be improved.

In general, a side-tone acoustic circuit can be understood as a C-L model, where the first chamber 1020a described above (referred to as volume C) can be represented by C and the outlet channel 1010a (referred to as duct L) can be represented by L. Analysis by using the side-sounding acoustic circuit model shows that the mid-frequency improvement before the resonance peak mainly benefits from the pipeline L (sound outlet channel); however, after the resonance peak corresponding to the intermediate frequency, the impedance of the sound volume C after the resonance peak is smaller than that of the pipe L, so that the volume speed of the sound volume C is large, and the volume speed of the pipe L is reduced, and the sound exits from the pipe L, so that the frequency response drops faster after the resonance peak.

Thus, it is generally considered in the related art to shift the resonance peak corresponding to the intermediate frequency backward by reducing the length of the pipe L or reducing the volume of the sound volume C. But is limited by the length requirement of the pipeline L and the volume requirement of the sound volume C, and the adjustment amplitude is limited.

With continued reference to fig. 6, from finite element analysis of the sound emitting module 60a of the related art, it can be seen from the cloud on the right in fig. 6 that the acoustic energy is concentrated in the sound volume C, and the efficiency of the acoustic energy propagating outwards is limited.

Fig. 7 is a schematic perspective view of an embodiment of the audio module 60 according to the present application, and fig. 8 is a schematic perspective view of an embodiment of the audio module 60 according to the present application. Referring to fig. 7 and 8, the sound outlet housing 1000 according to the embodiment of the present application has a sound outlet channel 1010 and a first chamber 1020, where the first chamber 1020 and the sound outlet channel 1010 are arranged in the X-axis direction. Referring to fig. 8, the sound outlet 1010 may form a sound outlet at an end facing away from the first chamber 1020, and the sound outlet may include a plurality of through holes, or may have an elongated structure. The sound outlet may be directly used as the sound outlet 114 in the device case, or may be provided to communicate with the sound outlet 114, which is not limited in this embodiment. In the Z-axis direction forming an angle with the X-axis direction, it is understood that the Z-axis direction is perpendicular to the X-axis direction or is inclined, and one end of the first chamber 1020 has a connection opening 1030, and the side of the speaker 61 having the diaphragm assembly 611 can cover the connection opening 1030. The first chamber 1020 includes a first cavity 1021 and a second cavity 1022 that are in communication, the first cavity 1021 coinciding with a projection of the connection opening 1030 in the Z-axis direction. In the Y-axis direction forming an angle with the X-axis direction and the Z-axis direction, respectively, the first cavity 1021 and the second cavity 1022 are arranged in a row, and the sound outlet channel 1010 communicates with the first cavity 1021 and the second cavity 1022, respectively. The X-axis direction, the Y-axis direction and the Z-axis direction form a three-dimensional coordinate system, and the three-dimensional coordinate system comprises a rectangular three-dimensional coordinate system formed by the vertical arrangement of the Y-axis direction and the X-axis direction and the Z-axis direction, or an oblique three-dimensional coordinate system formed by the inclined arrangement of the Y-axis direction and the X-axis direction and the Z-axis direction.

In this embodiment, by arranging the first chamber 1020 and the sound outlet channel 1010 in the X-axis direction, and arranging the first chamber 1020 with the connection opening 1030 at one end of the first chamber 1020 in the Z-axis direction forming an angle with the X-axis direction, the connection opening 1030 of the sound outlet housing 1000 can cover a side of the speaker 61 having the diaphragm assembly 611, and after the sound wave formed by the speaker 61 reaches the first chamber 1020 along the Z-axis direction, the sound wave propagates from the sound outlet channel 1010 to the outside along the X-axis direction, and the sound outlet housing 1000 can be used for making side sound, which is beneficial to reducing the thickness; the first cavity 1021 and the second cavity 1022 are arranged in the Y-axis direction forming an included angle with the X-axis direction and the Z-axis direction respectively, and the sound outlet channel 1010 is communicated with the first cavity 1021 and the second cavity 1022 respectively, so that sound waves formed by the loudspeaker 61 are favorably transmitted from the first cavity 1021 and the second cavity 1022 to the sound outlet channel 1010 respectively, the sound outlet area is increased, the accumulation of sound energy in the first cavity 1020 is reduced, the high-frequency response is favorably improved, and the resolution capability of the sound outlet module 60 for high-frequency audio is favorably improved.

In some embodiments, referring to a top view (the top view is a cutaway portion of the structure) of the sound emitting module illustrated in fig. 9, the second cavity 1022 is projected along the Z-axis direction, and a side of the second cavity 1022 away from the first cavity 1021 forms a projection boundary 1040 (specifically, referring to fig. 9, the projection boundary 1040 may be configured to include a first boundary portion 1041); the projection boundary 1040 includes a first end 1046 facing the sound outlet 1010 and a second end 1047 facing away from the sound outlet 1010, the first end 1046 and the second end 1047 being connected to form a first virtual line 1048, and the second end 1047 being connected to form a second virtual line 1049 parallel to the X-axis direction; the distance W from the first virtual straight line 1048 to the second virtual straight line 1049 increases in a direction toward the sound outlet channel 1010, for example, in a direction toward the left in the drawing. It will be appreciated that when a plurality of cross sections are formed in the direction toward the sound outlet channel 1010 (the cross sections are perpendicular to the direction toward the sound outlet channel 1010), each cross section corresponds to a distance W from the first virtual straight line 1048 to the second virtual straight line 1049; the distance W from the first virtual straight line 1048 to the second virtual straight line 1049 corresponding to each section increases in the direction toward the sound outlet channel 1010; it may also be understood that the projection boundary 1040 formed on the side of the second cavity 1022 away from the first cavity 1021 is integrally disposed away from the first cavity 1021 along the direction toward the sound outlet channel 1010, so that the sound outlet area increases in the direction from the first chamber 1020 to the sound outlet channel 1010, which is more beneficial to improving the resolution capability for high-frequency audio.

Wherein the distance W from the first virtual line 1048 to the second virtual line 1049 increases in a direction toward the sound outlet channel 1010, the projection boundary 1040 may be specifically set to include the first boundary portion 1041 with reference to fig. 9. The increasing magnitude of the distance of the first boundary portion 1041 to the second virtual straight line 1049 decreases in the direction toward the sound outlet channel 1010. It is understood that the first boundary portion 1041 is adducting in a direction toward the outlet channel 1010. For example, referring to fig. 9, the first boundary portion 1041 may be provided as a first arc segment having a center position disposed on a side of the first arc segment facing the first cavity 1021. In this embodiment, the audio output housing 1000 and the audio output module can further enhance the parsing capability in a higher frequency band (e.g., a frequency band after 8 KHz).

Of course, the distance W from the first virtual straight line 1048 to the second virtual straight line 1049 increases in the direction toward the sound outlet channel 1010, and the projection boundary 1040 may be set to include the second boundary portion 1042 with reference to fig. 10. The increasing magnitude of the distance of the second boundary portion 1042 to the second virtual straight line 1049 increases in the direction toward the sound outlet channel 1010. It will be appreciated that the first border segment 1041 is flared in a direction toward the outlet channel 1010. For example, referring to fig. 10, the second boundary portion 1042 may be provided as a second arc segment having a center position disposed on a side of the second arc segment facing away from the first cavity 1021. In this embodiment, the audio output housing 1000 and the audio output module can further enhance the parsing capability in a higher frequency band (e.g., a frequency band after 8 KHz).

Of course, the projected boundary 1040 may be set to include the first boundary portion 1041 and the second boundary portion 1042 described above with reference to fig. 11. For example, referring to FIG. 11, the projected boundary 1040 may be configured to include a wavy line. In this embodiment, the audio output housing 1000 and the audio output module can further enhance the parsing capability in a higher frequency band (e.g., a frequency band after 8 KHz).

In some implementations, referring to fig. 12, the projected boundary 1040 may also be provided as a third boundary portion 1043; the distance from the third boundary portion 1043 to the second virtual straight line 1049 increases by the same magnitude in the direction toward the sound outlet channel 1010, and it can be understood that the third boundary portion 1043 is a straight line segment. For example, referring to fig. 13, the projection shape of the second cavity 1022 may be a trapezoid, and of course, the projection shape of the second cavity 1022 may be a triangle, which is not limited in this embodiment. In this embodiment, the audio output housing 1000 and the audio output module can further enhance the parsing capability in a higher frequency band (e.g., a frequency band after 8 KHz).

In some implementations, referring to fig. 13, the projected boundary 1040 may be configured to include a fourth boundary portion 1044 and a fifth boundary portion 1045; the distance from the fourth boundary portion 1044 to the second virtual straight line 1049 increases by the same magnitude in the direction toward the sound outlet channel 1010; the distance from the fifth boundary portion 1045 to the second virtual straight line 1049 increases by the same magnitude and is larger than the distance from the fourth boundary portion 1044 to the second virtual straight line 1049 in the direction toward the sound outlet channel 1010; wherein the increasing magnitude of the distance of the fourth boundary portion 1044 to the second virtual line 1049, the increasing magnitude of the distance of the fifth boundary portion 1045 to the second virtual line 1049 may be understood as a slope with respect to the second virtual line 1049. For example, referring to fig. 13, the fourth boundary portion 1044 and the fifth boundary portion 1045 may be respectively provided as straight line segments, and the slope of the fifth boundary portion 1045 with respect to the second virtual line 1049 is greater than the slope of the fourth boundary portion 1044 with respect to the second virtual line 1049. In this embodiment, the audio output housing 1000 and the audio output module can further enhance the parsing capability in a higher frequency band (e.g., a frequency band after 8 KHz).

It is understood that while the distance W from the first virtual straight line 1048 to the second virtual straight line 1049 increases in the direction toward the sound outlet channel 1010, the projection boundary 1040 may be configured to include one or more of the above-described first boundary portion 1041, second boundary portion 1042, third boundary portion 1043, fourth boundary portion 1044, and fifth boundary portion 1045, which the present embodiment is not limited to. When the projection boundary 1040 includes one or more of the first boundary portion 1041, the second boundary portion 1042, the third boundary portion 1043, the fourth boundary portion 1044 and the fifth boundary portion 1045, it is beneficial to further enhance the resolving power of the audio output housing 1000 and the audio output module in a higher frequency band (e.g. a band after 8 KHz).

In some embodiments, referring to fig. 9, for the first end 1046 toward the sound outlet channel 1010 and the second end 1047 away from the sound outlet channel 1010 included in the projection boundary 1040, it may be set as follows: along the X-axis direction, a part of the first cavity 1021 is disposed on a side of the second end point 1047 away from the sound outlet channel 1010, for example, a part of the first cavity 1021 is disposed on a right side of a vertical imaginary line where the second end point 1047 is located in fig. 9, which may be understood that a rightmost side of the first cavity 1021 is disposed on a right side of the second end point 1047 in fig. 9 and forms a distance G in the drawing. In this embodiment, the second cavity 1022 has less hollowing out the entity of the sound output housing 1000, which is beneficial to improving the overall structural strength of the sound output housing 1000 and the sound output module while reducing the accumulation of sound energy in the first cavity 1020, and improving the durability of the sound output housing 1000 and the sound output module.

Of course, referring to fig. 14 and 15, the sound emitting module 60 may include the speaker 61 and the sound emitting housing 1000, and the sound emitting module 60 may further include the cover 62, where the cover 62 is connected to a side of the sound emitting housing 1000 having the connection opening 1030, for example, the cover 62 is connected to a lower side of the sound emitting housing 1000 in the drawing, and the sound emitting housing 1000, the speaker 61, and the cover 62 enclose a second chamber 621, and the second chamber 621 may be used as a rear sound chamber of the sound emitting module 60.

Specifically, referring to fig. 14 and 15, the sound emitting housing 1000 may be provided to include a first wall plate 1100 and a second wall plate 1200 disposed opposite to each other in the Z-axis direction, the second wall plate 1200 including a first plate segment 1210 and a second plate segment 1220 connected in the X-axis direction, the sound emitting channel 1010 being disposed between the first plate segment 1210 and the first wall plate 1100, and the first chamber 1020 being disposed between the second plate segment 1220 and the first wall plate 1100; the second plate segment 1220 is provided with a through-hole 1230 to form a connection opening 1030.

In some embodiments, with continued reference to fig. 8 and 9, in the Y-axis direction, the first cavity 1021 is provided with a second cavity 1022 at both ends. It can be appreciated that the first cavity 1021 and the second cavities 1022 at both ends of the first cavity 1021 are connected to the sound outlet channel 1010. For example, referring to the drawings, when the connection opening 1030 is integrally provided in a rectangular shape, the second cavities 1022 at both ends of the first cavity 1021 can be provided to correspond to the opposite sides of the connection opening 1030 in the Y-axis direction, respectively, and the sound outlet channel 1010 can correspond to one side of the connection opening 1030 in the X-axis direction and the two second cavities 1022, it can be understood that the speaker 61 can perform sound outlet in the three side directions of the first cavity 1021 corresponding to the connection opening. Therefore, in this embodiment, the second cavities 1022 are disposed at two ends of the first cavity 1021, so as to further increase the sound output area, further reduce the accumulation of sound energy in the first cavity 1020, and further facilitate the enhancement of the high-frequency audio response, and further facilitate the enhancement of the resolution capability of the sound output module 60 for the high-frequency audio.

Compared to the prior art in which the projection of the first cavity 1020a and the projection of the connection opening 1030a in the vertical direction are overlapped, in the above embodiment, the projection of the first cavity 1021 and the projection of the connection opening 1030 in the Z-axis direction are overlapped, and the first cavity 1021 and the second cavity 1022 are arranged in the Y-axis direction, the overall thickness of the sound emitting housing 1000 at the second cavity 1022 is reduced, the second plate 1220 is easy to generate sound and warp, so that the sound in the first cavity 1020 leaks out or the warped second plate 1220 forms tremolo with the diaphragm assembly 611 of the speaker 61, and the sound quality of the sound emitting module 60 is reduced. In some embodiments, referring to fig. 7 and 8, a boss structure 1240 is disposed on a side of the second plate segment 1220 facing the first wall plate 1100, so that the boss structure 1240 reduces the warpage of the second plate segment 1220, reduces the sound leakage in the first chamber 1020, reduces the tremolo formed by the second plate segment 1220 and the diaphragm assembly 611 of the speaker 61, and improves the sound quality of the sound emitting module 60.

Referring to fig. 8, the second plate 1220 is located at a position corresponding to the boundary between the first cavity 1021 and the second cavity 1022, and is further away from the sidewall of the first chamber 1020, so that the second plate is more likely to generate warpage. Therefore, the boundary position between the first cavity 1021 and the second cavity 1022 may be opposite to the boss 1240, so as to further reduce the warpage of the second plate 1220, further reduce the sound leakage in the first chamber 1020, further reduce the tremolo formed by the second plate 1220 and the diaphragm 611 of the speaker 61, and further improve the sound quality of the sound output module 60.

Specifically, referring to fig. 8, the boss structure 1240 may be configured to include a first boss 1241 and a second boss 1242, where the first boss 1241 and the second boss 1242 are disposed at intervals along the X-axis direction, so that the sound quality is improved by reducing the warpage amplitude of the second plate segment 1220 while the sound output area can be increased by a gap between the first boss 1241 and the second boss 1242, and the stacking of sound energy in the first chamber 1020 is reduced, which is beneficial for the sound output module 60 to improve the resolution capability for high-frequency audio. Of course, the boss structure 1240 may be provided to include only the first boss 1241 to reduce the occupied space of the boss structure 1240, which is not limited in this embodiment.

In some embodiments, referring to fig. 8, the length direction of the first boss 1241 coincides with the X-axis direction and the length direction of the second boss 1242 coincides with the X-axis direction; the second boss 1242 is disposed on a side of the first boss 1241 away from the sound outlet channel 1010, and a length of the second boss 1242 is smaller than a length of the first boss 1241, wherein the length of the first boss 1241 may be shown with reference to a dimension L in fig. 8. Referring to the frequency response analysis chart of fig. 6, the acoustic energy is more easily concentrated at the end of the first chamber 1020 away from the sound outlet channel 1010, for example, more concentrated at the right end in fig. 8. In this embodiment, the second boss 1242 is disposed on the side of the first boss 1241 away from the sound outlet channel 1010, where the length of the second boss 1242 is smaller than that of the first boss 1241, so that the gap between the second boss 1242 and the first boss 1241 is closer to the position where the sound energy is concentrated, so that the sound energy can be emitted from the gap between the second boss 1242 and the first boss 1241 more quickly while the warpage of the second plate segment 1220 is reduced by the first boss 1241 and the second boss 1242 to improve the sound quality, so that the accumulation of the sound energy in the first chamber 1020 is reduced, which is beneficial to the enhancement of the resolution capability of the sound outlet module 60 for high-frequency audio.

In some embodiments, at least one of the first boss 1241 and the second boss 1242 is provided with a length decreasing in a direction toward the first wall plate 1100. It will be appreciated that in a plurality of cross-sections formed in a direction toward the first wall plate 1100, wherein the cross-sections are perpendicular to the direction toward the first wall plate 1100, each cross-section corresponds to one length dimension value of the first boss 1241 or the second boss 1242; the length dimension value in each section decreases in a direction toward the first wall plate 1100. For example, referring to fig. 7 and 8, the length L of the first boss 1241 and the length of the second boss 1242 are each set to decrease in the direction of the first wall plate 1100 (the direction in which the Z axis is upward in fig. 8). It will be appreciated that the first and second bosses 1241, 1242 taper in a direction toward the first wall plate 1100. Of course, only one of the length L of the first boss 1241 and the length of the second boss 1242 may be set to decrease in the direction toward the first wall plate 1100, and the comparison of the present embodiment is not limited. In this embodiment, at least one of the first boss 1241 and the second boss 1242 is configured to decrease in length in a direction toward the first wall plate 1100, which is advantageous for reducing the blocking of sound waves by corners of the boss, for enabling sound energy to be emitted outward from a gap between the second boss 1242 and the first boss 1241 more quickly, for further reducing the accumulation of sound energy in the first chamber 1020, and for improving the resolution of high-frequency audio by the sound emitting module 60.

In some embodiments, referring to fig. 15, 16 and 17, the first plate segment 1210 has a first plate face 1211 facing the first wall plate 1100, and the second plate segment 1220 has a second plate face 1221 facing the first wall plate 1100; in the Z-axis direction, a side of the first plate 1211 facing the first chamber 1020 has a first distance H1 from the first wall plate 1100, and a side of the second plate 1221 facing the sound outlet channel 1010 has a second distance H2 from the first wall plate 1100, the second distance H2 being smaller than the first distance H1. On this basis, the end of the sidewall surface of the through hole 1230 facing the first chamber 1020 has a notch 1233 communicating with the sound outlet channel 1010, and the portion of the sidewall surface of the first plate segment 1210 facing the second plate segment 1220 facing the through hole 1230 is understood to be disposed at the junction of the first plate segment 1210 and the second plate segment 1220. For example, referring to fig. 16 and 17, the right side of the first plate 1211 is lower than the second plate 1221, and the left side wall of the through hole 1230 is provided with a notch 1233 that communicates with the sound outlet channel 1010, so that the sound energy is more rapidly emitted to the sound outlet channel 1010 through the notch 1233, and the accumulation of the sound energy in the first chamber 1020 is reduced, which is beneficial for the sound outlet module 60 to improve the resolution of the high-frequency audio.

In some embodiments, referring to fig. 16 and 18, the through-hole 1230 includes a first hole section 1231 and a second hole section 1232 arranged in the Z-axis direction, the second hole section 1232 being disposed at a side of the first hole section 1231 remote from the first cavity 1021; projecting along the Z-axis direction, wherein at least part of the hole wall surface of the second hole section 1232 is arranged outside the hole wall surface of the first hole section 1231; referring to fig. 18 and 19, it can be understood that the second hole section 1232 has a larger hole diameter than the first hole section 1231, and the second hole section 1232 and the first hole section 1231 form a stepped structure, thereby improving the convenience of mounting the speaker 61. It will be appreciated that the through-hole 1230, and the first and second hole segments 1231, 1232 included therein, may be configured in the shape of square holes, rounded rectangular holes, round holes, elliptical holes, or kidney-shaped holes, etc., to accommodate speakers 61 of different shapes. Specifically, the end of the speaker 61 having the diaphragm assembly 611 may extend into the second hole segment 1232, and the stepped structure formed by the second hole segment 1232 and the first hole segment 1231 abuts against the end surface of the speaker 61, so as to limit the speaker 61. The side walls of the speaker 61 may be connected to the sound outlet housing 1000 by one or more of a snap connection, a glue bond, a screw connection, or the like, which is not limited in this embodiment.

Referring to fig. 16 and 17, in the Z-axis direction, the end of the second hole segment 1232 toward the first hole segment 1231 has a third distance H3 from the first wall plate 1100, the third distance H3 being smaller than the first distance H1; the sidewall surface of the second hole segment 1232 has the notch 1233, and the sidewall surface of the first plate segment 1210 facing the second plate segment 1220 forms a part of the hole wall surface of the second hole segment 1232. It will be appreciated that the second hole wall segment 1232 extends beyond the first plate 1211 of the first plate segment 1210 toward the first wall 1100, so that the end surface of the corresponding speaker 61 having the diaphragm assembly 611 has a protrusion relative to the first plate 1211, which avoids the end surface of the speaker 61 having the diaphragm assembly 611 being lower than the first plate 1211, and avoids the diaphragm assembly 611 of the speaker being blocked by the first plate segment 1210 toward one side (right side in the drawing) of the second plate segment 1220, so that the sound energy is emitted to the sound outlet channel 1010 more quickly, thereby reducing the accumulation of the sound energy in the first chamber 1020, and facilitating the enhancement of the resolution of the high-frequency audio by the sound outlet module 60.

In some embodiments, referring to fig. 16 and 17, a convex strip 1250 is provided on a side of the first plate 1211 facing the first chamber 1020, and an extending direction of the convex strip 1250 coincides with the Y-axis direction. Wherein, the cross section of the convex strip 1250 may be provided in a rectangular shape or a semicircular shape, which is not limited in this embodiment. At least a portion of the sides of the ribs 1250 toward the second plate segment 1220 and at least a portion of the sides of the first plate segment 1210 toward the second plate segment 1220 form a portion of the hole wall of the second hole segment 1232. In addition, in the Z-axis direction, a side of the protrusion 1250 facing the first wall plate 1100 has a fourth distance H4 from the first wall plate 1100, and the fourth distance H4 is greater than the third distance H3 and the second distance H2. It will be appreciated that some or all of the ribs 1250 are disposed between the notch 1233 and the side of the first plate 1211 facing the first chamber 1020, and the second hole portion 1232 is higher than the ribs 1250, for example, the ribs 1250 are disposed below the notch 1233 in the figure, and the side of the speaker 61 having the diaphragm assembly 611 is higher than the ribs 1250. In this embodiment, referring to fig. 16, since the first plate surface 1211 is lower than the second plate surface 1221, at least a portion of the side surface (e.g., a portion of the right side surface in the drawing) of the convex strip 1250 facing the second plate segment 1220 can increase the support area for the side surface (e.g., the left side surface in the drawing) of the speaker 61 together with at least a portion of the side surface (e.g., a portion of the right side surface in the drawing) of the first plate segment 1210 facing the second plate segment 1220, which is advantageous for improving the stability of the speaker 61 mounted in the second hole segment 1232. The side surface of the speaker 61 may be fixed to at least a portion of the side surface of the protruding strip 1250 and at least a portion of the side surface facing the first plate segment 1210 by means of glue bonding, snap connection, or the like, which is not limited in this embodiment.

In some embodiments, referring to fig. 16 and 17, a third boss 1260 is disposed on a side of the raised strip 1250 facing the first wall plate 1100, and it is understood that the third boss 1260 protrudes with respect to the raised strip 1250 in a direction facing the first wall plate 1100, for example, in an upward direction along the Z-axis in the figures. The third boss 1260 is connected to the second plate segment 1220; the third boss 1260 forms part of the hole wall surface of the second hole segment 1232 toward at least part of the side of the second plate segment 1220. In this embodiment, since the second hole segment 1232 is higher than the protruding strip 1250 (corresponding to the fourth distance H4 being greater than the third distance H3 and the second distance H2), by connecting the third boss 1260 to the second plate segment 1220, the risk of tilting the second plate segment 1220 toward one side (e.g., left side in the drawing) of the first plate segment 1210 can be reduced while reducing the thickness of the second plate segment 1220 and the overall thickness of the sound emitting housing 1000, the leakage of sound in the first chamber 1020 from the predetermined trajectory can be reduced, and the tremolo formed by the second plate segment 1220 and the diaphragm assembly 611 of the speaker 61 can be reduced, thereby improving the sound quality of the sound emitting module 60.

Referring to fig. 20, since the sound outlet channel 1010 is respectively communicated with the first cavity 1021 and the second cavity 1022, the sound outlet channel 1010 is more elongated, and it can be understood that the size of the sound outlet channel 1010 along the Y-axis direction in the drawing is increased, so that the corresponding part of the first wall plate 1100 and the corresponding part of the first plate segment 1210 of the sound outlet channel 1010 are easier to tilt, the cross-sectional area of the sound outlet channel 1010 is easier to be reduced, and the sound outlet area is easy to be reduced. In some embodiments, one of the first plate segment 1210 and the first wall plate 1100 is provided with a support plate 1270, the support plate 1270 abutting the other of the first plate segment 1210 and the first wall plate 1100. Further, the support plate 1270, the first plate segment 1210 and the first wall plate 1100 may be integrally formed by injection molding or casting. In this embodiment, the support plate 1270 can reduce the warpage of the first plate segment 1210 toward the first wall plate 1100 and the warpage of the first wall plate 1100 toward the first plate segment 1210, which is beneficial to increasing the sound output area of the sound output channel 1010, reducing the accumulation of sound energy in the first chamber 1020, being beneficial to raising the high-frequency response, and being beneficial to the resolution capability of the sound output module 60 for high-frequency audio. Wherein, the sound outlet housing 1000 may be provided with one or more support plates 1270, and when a plurality of support plates 1270 are provided, the support plates 1270 may be arranged at intervals along the Y-axis direction, so as to further increase the sound outlet area of the sound outlet channel 1010, further reduce the accumulation of sound energy in the first chamber 1020, and further facilitate the enhancement of the high-frequency response, and further facilitate the enhancement of the resolution capability of the sound outlet module 60 for high-frequency audio.

Fig. 21 shows a frequency response analysis diagram of the sound emitting module 60 in the above embodiment, wherein a curve Q0 is a frequency response curve of the sound emitting module 60a in the above related art, and a curve Q1 is a frequency response curve of the sound emitting module 60 in the above embodiment. Referring to fig. 21, in the above embodiment, after the audio output module 60 is at 8KHz, the high frequency response is improved by more than 5dB on average about 8KHz compared to the audio output module 60a in the related art.

Referring to fig. 22, in some embodiments, the first chamber 1020 further includes a third cavity 1023 in communication with the first cavity 1021, the third cavity 1023 being disposed at an end of the first cavity 1021 remote from the sound outlet channel 1010, the third cavity 1023 being in communication with the second cavity 1022. For example, referring to the drawings, when the connection opening 1030 is entirely rectangular, the second cavities 1022 at both ends of the first cavity 1021 in the Y-axis direction can be provided to correspond to both opposite sides of the connection opening 1030 in the Y-axis direction, respectively, and the third cavity 1023 on the right side of the first cavity 1021 in the X-axis direction corresponds to the right side of the connection opening 1030 in the X-axis direction; the sound outlet channel 1010 can correspond to one side edge of the connection opening 1030 in the X-axis direction and one or two second cavities 1022; it will be appreciated that the speaker 61 is capable of emitting sound in four lateral directions of the first cavity 1021 corresponding to the connection opening 1030. Therefore, this embodiment further increases the sound output area by making the first chamber 1020 include the third cavity 1023 in communication with the first cavity 1021, further reduces the accumulation of acoustic energy in the first chamber 1020, and is more beneficial to improving the high frequency response and improving the resolution of the high frequency audio by the sound output module 60.

In some embodiments, in the technology of the sound emitting module 60 of the above embodiment or on the basis of the sound emitting module 60a of the above related art, for example, the sound emitting housing 1000 has the sound emitting channel 1010 and the first chamber 1020, and the first chamber 1020 and the sound emitting channel 1010 are arranged in the X-axis direction; in the Z-axis direction forming an angle with the X-axis direction, one end of the first chamber 1020 has a connection opening 1030, and one side of the speaker 61 having the diaphragm assembly 611 covers the connection opening 1030, and in the Y-axis direction forming an angle with the X-axis direction and the Z-axis direction, respectively, the width direction of the sound outlet channel 1010 coincides with the Y-axis direction, and the width of the sound outlet channel 1010 increases in a direction away from the first chamber 1020, which may be understood as widening the sound outlet channel 1010 in a direction away from the first chamber 1020. The width direction of the sound outlet channel 1010 is consistent with the Y-axis direction, and the width of the sound outlet channel 1010 increases along the direction away from the first chamber 1020, so that the efficiency of outwards spreading sound waves from the sound outlet channel 1010 is improved, the accumulation of sound energy in the first chamber 1020 is reduced, the high-frequency response is improved, and the resolution capability of high-frequency audio is improved.

It can be understood that, since the above-mentioned sound emitting module 60 and the electronic device adopt all the technical schemes of all the embodiments of the above-mentioned sound emitting housing 1000, at least all the beneficial effects brought by the technical schemes of the above-mentioned embodiments are not described in detail herein.

The foregoing is merely exemplary embodiments of the present application, and any person skilled in the art may easily conceive of changes or substitutions within the technical scope of the present application, which should be covered by the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims (19)

1. The sound outlet shell is characterized by comprising a sound outlet channel and a first cavity, wherein the first cavity and the sound outlet channel are arranged in the X-axis direction; in the Z-axis direction forming an included angle with the X-axis direction, one end of the first chamber is provided with a connecting opening;

the first cavity comprises a first cavity and a second cavity which are communicated, and the projection of the first cavity and the connecting opening in the Z-axis direction is overlapped; in the Y-axis direction forming an included angle with the X-axis direction and the Z-axis direction respectively, the first cavity and the second cavity are arranged in a row, and the sound outlet channel is communicated with the first cavity and the second cavity respectively; and/or the width direction of the sound outlet channel is consistent with the Y-axis direction, and the width of the sound outlet channel increases along the direction away from the first chamber;

the sound outlet shell comprises a first wall plate and a second wall plate which are oppositely arranged along the Z-axis direction, the second wall plate comprises a first plate section and a second plate section which are connected in the X-axis direction, the sound outlet channel is arranged between the first plate section and the first wall plate, and the first cavity is arranged between the second plate section and the first wall plate; the second plate section is provided with a through hole so as to form the connecting opening.

2. The sound emitting casing according to claim 1, wherein the second cavities are provided at both ends of the first cavity in the Y-axis direction.

3. The sound emitting housing according to claim 1 or 2, wherein a projection is performed along the Z-axis direction, and a projection boundary is formed on a side of the second cavity away from the first cavity; the projection boundary comprises a first end point facing the sound outlet channel and a second end point far away from the sound outlet channel, wherein the first end point and the second end point are connected to form a first virtual straight line, and the second end point is connected in parallel to the X-axis direction to form a second virtual straight line; the distance from the first virtual straight line to the second virtual straight line increases in a direction toward the sound outlet channel.

4. The sound outlet housing of claim 3, wherein the projected boundary comprises a first boundary portion and/or a second boundary portion and/or a third boundary portion; the increasing amplitude of the distance from the first boundary portion to the second virtual straight line decreases in the direction toward the sound outlet passage; the increasing amplitude of the distance from the second boundary portion to the second virtual straight line increases in the direction toward the sound output channel; the distance from the third boundary portion to the second virtual straight line increases by the same magnitude in a direction toward the sound outlet passage.

5. The sound outlet housing of claim 3, wherein the projected border includes a fourth border portion and a fifth border portion; the distance from the fourth boundary part to the second virtual straight line increases in the direction towards the sound outlet channel by the same magnitude; the distance from the fifth boundary portion to the second virtual straight line increases in the direction toward the sound outlet passage by the same amount as and greater than the distance from the fourth boundary portion to the second virtual straight line.

6. The sound outlet housing of claim 1 or 2, wherein a side of the second cavity remote from the first cavity forms a projected boundary, the projected boundary including a first end point toward the sound outlet channel and a second end point remote from the sound outlet channel, projected along the Z-axis; along the X-axis direction, part of the first cavity is arranged at one side of the second endpoint far away from the sound outlet channel.

7. The sound outlet housing of claim 1 or 2, wherein the first chamber further comprises a third cavity in communication with the first cavity, the third cavity being disposed at an end of the first cavity remote from the sound outlet channel, the third cavity in communication with the second cavity.

8. The sound outlet housing according to claim 1 or 2, wherein a side of the second panel section facing the first panel is provided with a boss structure.

9. The sound emitting casing of claim 8, wherein the junction of the first cavity and the second cavity is disposed opposite the boss structure, the boss structure includes a first boss and a second boss, and the first boss and the second boss are disposed at intervals along the X-axis direction.

10. The sound emitting casing of claim 9, wherein a length direction of the first boss coincides with the X-axis direction, and a length direction of the second boss coincides with the X-axis direction; the second boss is arranged on one side, far away from the sound outlet channel, of the first boss, and the length of the second boss is smaller than that of the first boss.

11. The sound emitting casing of claim 9, wherein a length direction of the first boss coincides with the X-axis direction, and a length direction of the second boss coincides with the X-axis direction; at least one of the first boss and the second boss is provided with a length decreasing in a direction toward the first wall plate.

12. The sound emitting housing of claim 1 or 2, wherein the first panel section has a first panel face facing the first wall panel and the second panel section has a second panel face facing the first wall panel; in the Z-axis direction, a side of the first plate surface facing the first cavity has a first distance from the first wall plate, and a side of the second plate surface facing the sound outlet channel has a second distance from the first wall plate, wherein the second distance is smaller than the first distance;

One end of the side wall surface of the through hole, which faces the first cavity, is provided with a notch communicated with the sound outlet channel, and the side wall surface of the first plate section, which faces the second plate section, forms part of the hole wall surface of the through hole.

13. The sound emitting casing of claim 12, wherein the through hole includes a first hole section and a second hole section aligned in the Z-axis direction, the second hole Duan Shezhi being on a side of the first hole section away from the first cavity; projecting along the Z-axis direction, wherein at least part of the hole wall surface of the second hole section is arranged outside the hole wall surface of the first hole section;

In the Z-axis direction, an end of the second hole section facing the first hole section has a third distance from the first wall plate, the third distance being smaller than the first distance; the side wall surface of the second hole section is provided with the notch, and the side wall surface of the first plate section facing the second plate section forms part of the hole wall surface of the second hole section.

14. The sound emitting casing according to claim 13, wherein a side of the first plate surface facing the first chamber is provided with a convex strip, an extending direction of the convex strip is consistent with the Y-axis direction, and at least a part of a side surface of the convex strip facing the second plate section and at least a part of a side surface of the first plate section facing the second plate section form part of a wall surface of the second hole section; in the Z-axis direction, a side of the convex strip facing the first wall plate has a fourth distance from the first wall plate, and the fourth distance is larger than the third distance and the second distance.

15. The sound emitting casing of claim 14, wherein a third boss is disposed on a side of the raised strip facing the first wall plate, and the third boss is connected to the second plate section; the third boss forms part of a hole wall surface of the second hole section towards at least part of a side surface of the second plate section.

16. The sound outlet housing according to claim 1 or 2, wherein one of the first plate section and the first wall plate is provided with a support plate, which support plate abuts the other of the first plate section and the first wall plate.

17. A sound emitting module comprising a speaker and a sound emitting housing according to any one of claims 1 to 16, wherein a side of the speaker having a diaphragm assembly covers the connection opening.

18. The sound emitting module of claim 17, further comprising a cover plate connected to a side of the sound emitting housing having the connection opening, the sound emitting housing, the speaker, and the cover plate enclosing a second chamber.

19. An electronic device comprising a device housing and a sound emitting module according to claim 17 or 18, wherein the sound emitting module is disposed within the device housing or a portion of the device housing forms at least a portion of the sound emitting housing.