WO2020014839A1

WO2020014839A1 - Housing assembly and electronic device

Info

Publication number: WO2020014839A1
Application number: PCT/CN2018/095838
Authority: WO
Inventors: 邱伟彬; 孙毅; 冉飞; 刘世林; 苏会军
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-07-16
Filing date: 2018-07-16
Publication date: 2020-01-23
Also published as: CN112369045A; CN112369045B

Abstract

Provided in an embodiment of the present invention are a housing assembly and an electronic device. The housing assembly comprises a housing main body having a sound hole and a sound-guiding channel. One end of the sound-guiding channel is in communication with the sound hole. The other end of the sound-guiding channel corresponds to a microphone installed at the housing main body. The sound-guiding channel comprises a first gas storage space and a second gas storage space for decreasing the sound energy density of a sound wave transmitted in the the sound-guiding channel. The first gas storage space and the second gas storage space are spaced apart from each other and sequentially arranged along the sound-guiding channel. In the housing assembly and the electronic device of the present invention, arrangement of a first gas storage space and a second gas storage space in a sound-guiding channel can decrease the sound energy density of a sound wave transmitted in the the sound-guiding channel, such that the sound energy density of the sound wave reaching a microphone is appropriate, thereby reducing risks of diaphragm breakage.

Description

Housing assembly and electronic equipment

Technical field

The present application relates to the technical field of electronic devices, and in particular, to a housing assembly and an electronic device.

Background technique

A microphone (Microphone, mic) is a common electrical component in electronic equipment, but in the existing electronic equipment, the microphone has a risk of breaking the film.

Summary of the invention

The object of the present application is to provide a housing assembly and an electronic device, so as to reduce the risk of film breakage of a microphone.

In a first aspect, an embodiment of the present application provides a housing assembly including a housing body. The housing body is provided with a sound hole and a sound guiding channel. One end of the sound guiding channel is in communication with the sound hole, and the other end of the sound guiding channel is in communication with the sound hole. Corresponding to a microphone mounted on the housing body, the sound guiding channel includes a first gas storage space and a second gas storage space for reducing a sound energy density of a sound wave propagating along the sound guiding channel. Spaces are arranged at intervals along the guide channel.

In a second aspect, an embodiment of the present application provides an electronic device including a microphone and the above-mentioned housing component. The microphone is disposed on the housing body, and the microphone receives sound through a sound guiding channel.

According to a third aspect, an embodiment of the present application provides an electronic device including a microphone and a housing body. The housing body is provided with a sound hole and a sound guiding channel, and the sound guiding channel includes a sound for reducing sound waves propagating along the sound guiding channel. The energy storage first and second gas storage spaces, one end of the sound guide channel communicates with the sound hole, and the other end of the sound guide channel corresponds to the microphone, so that external sound waves enter the sound guide channel along the sound hole and pass through The first gas storage space and the second gas storage space propagate into the microphone.

Compared with the prior art, the housing assembly and the electronic device provided in the present application reduce the sound energy density of the sound wave propagating along the sound guide channel by providing a first gas storage space and a second gas storage space in the sound guide channel. The sound energy density reaching the microphone is moderate, thereby reducing the risk of breaking the membrane of the microphone.

These or other aspects of the present application will be more concise and easy to understand in the description of the following embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings used in the description of the embodiments are briefly introduced below. Obviously, the drawings in the following description are just some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

FIG. 1 is a schematic partial structural diagram of a housing assembly provided by a first embodiment of the present application; FIG.

2 is a partial cross-sectional view taken along line A-A in FIG. 1;

3 is a partial schematic diagram of a housing assembly according to another embodiment provided by the first embodiment of the present application;

4 is a schematic partial structural diagram of a housing assembly provided by a second embodiment of the present application;

5 is a partial cross-sectional view taken along line B-B in FIG. 4;

6 is a schematic partial structural diagram of an electronic device according to a third embodiment of the present application;

Fig. 7 is a partial sectional view taken along the line C-C in Fig. 6.

detailed description

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

With the rapid development of electronic equipment (such as mobile terminals), the assembly structure of electronic equipment is more compact. Usually, the microphone is installed near the sound hole, so that the extension distance of the sound guide channel is short, and the sound waves are carried by air as the propagation medium. When the microphone reaches the microphone during propagation, it is easy to cause the microphone to break. Therefore, the inventor has proposed a housing assembly and an electronic device in the embodiments of the present application. The embodiments of the present application will be described in detail below with reference to the drawings.

First embodiment

Referring to FIG. 1 and FIG. 2, this embodiment provides a housing assembly 100 a, which can be used to install a microphone. The housing assembly 100a includes a housing body 102. The housing body 102 is provided with a sound hole 101 and a sound guiding channel 140. The sound hole 101 communicates with the sound guiding channel 140 and is used to introduce external sound into the sound guiding channel 140. The sound guiding channel 140 It is used to communicate with the microphone and conduct sound waves that enter the sound guide channel 140 from the sound hole 101 to the microphone.

In the process of sound transmission by the sound guide channel 140, sound waves can be propagated using air as a medium, for example. The sound waves collide with the sound guide channel 140 during the propagation process and lose part of the energy. Therefore, when the sound wave entering the sound guide channel 140 is propagating, due to the short propagation distance of the sound wave, the energy loss during sound propagation in the sound guide channel 140 is small, and the sound energy density of the sound wave does not change much. When the sound energy density is high, when the sound wave reaches the microphone, it will cause the microphone to break. Among them, the sound energy density refers to the sound energy contained in a unit volume of medium.

The sound guide channel 140 includes a first air storage space 130 and a second air storage space 153 for reducing the sound energy density of sound waves propagating along the sound guide channel 140, and the first air storage space 130 and the second air storage space 153 may be provided. At any position of the sound guide channel 140. Among them, reducing the sound energy density of the sound wave propagating along the sound guide channel 140 means reducing the sound energy density of the sound wave propagating from the sound hole 101 to the microphone.

In this embodiment, the housing body 102 includes a casing 110 and a middle frame 120. The middle frame 120 is assembled with the casing 110 and is suitable for mounting a microphone. The sound hole 101 includes a decorative hole 111 opened on the housing 110 and a sound inlet hole 122 opened on the middle frame 120. The positions of the decoration hole 111 and the sound inlet hole 122 correspond and communicate with each other, and the decoration hole 111 and the sound inlet hole 122 are coaxial. Set and have the same inside diameter. The middle frame 120 includes a frame 121 and a generally plate-shaped mounting member 122. The frame 121 is enclosed in a ring shape. The mounting member 122 is assembled in the frame 121 and is located in the frame 121. The mounting member 122 can be integrally formed and clicked. The frame 121 is connected by glue or welding, and the mounting member 122 can be used to install various electrical components. The sound guide channel 140 is provided in the installation member 122. The sound inlet hole 122 only penetrates the frame 121 and communicates with the sound guide channel 140. The decorative hole 111 penetrates the casing 110.

In some embodiments, the sound inlet hole 122 formed in the middle frame 120 may extend a distance into the middle frame 120, that is, the sound inlet hole 122 penetrates the frame 121 and extends a distance on the mounting member 122. In some embodiments, the number of the sound holes 101 may be multiple (that is, two or more), and at this time, the multiple sound holes 101 are all in communication with the first gas storage space 130.

The first air storage space 130 is located at one end of the sound guide channel 140. The sound hole 101 communicates with the sound guide channel 140 through the first air storage space 130. The first air storage space 130 has an inlet 131 and an outlet 132, wherein the inlet 131 and the sound The hole 101 is in communication, and the outlet 132 is in communication with the sound guide channel 140. The first gas storage space 130 may be a regular spherical shape, an ellipsoidal shape, a rectangular parallelepiped shape, or the like, or may be an irregular space structure. In this embodiment, the cross-sectional area of the inlet 131 is the same as the cross-sectional area of the sound hole 101, and the cross-sectional area of the inlet 131 is smaller than the maximum cross-sectional area of the first gas storage space 130. The cross-sectional area of the outlet 132 and the sound guiding channel 140 are the same, and the cross-sectional area of the outlet 132 is smaller than the maximum cross-sectional area of the first gas storage space 130.

The projection of the sound hole 101 on the plane L perpendicular to the axis direction of the sound hole 101 is located in the projection of the first gas storage space 130 on the plane L perpendicular to the axis direction of the sound hole 101. The first gas storage space 130 is perpendicular to the sound The projection area of the plane L in the axis direction of the hole 101 is larger than the projection area of the sound hole 101 in the plane L perpendicular to the axis direction of the sound hole 101. Thus, when the airflow enters the first air storage space 130 from the sound hole 101, The cross-sectional area of the air storage space 130 is large, the airflow flows laterally and diffuses, the acoustic energy per unit volume of the medium decreases, and the acoustic energy density decreases. The first gas storage space 130 is a relatively large volume of the first gas storage space 130 formed by extending and extending in a direction perpendicular to the axis direction of the sound hole 101. Before the sound waves in the first gas storage space 130 propagate into the sound channel 140, the sound waves The sound energy density entering the first gas storage space 130 can be reduced. The sound waves colliding with the inner wall of the middle frame in the first gas storage space 130 can further reduce the energy. The sound waves entering the sound guiding channel 140 through the first gas storage space 130 The sound energy density undergoes a decrease.

The advantage of this arrangement is that the sound waves entering the first gas storage space 130 from the sound hole 101 can be evenly diffused in the first gas storage space 130, so as to achieve a better effect of reducing the sound energy density of the sound waves. It can be understood that, in other embodiments, the projection of the sound hole 101 on the plane L perpendicular to the axis direction of the sound hole 101 may also be partially located in the first air storage space 130 in the direction perpendicular to the axis of the sound hole 101 In the projection of the plane L, for example, the sound hole 101 is disposed obliquely with respect to the first gas storage space 130.

In some embodiments, the cross-sectional area of the inlet 131 or the outlet 132 may also be equal to the maximum cross-sectional area of the first gas storage space 130. At this time, the purpose of decelerating the airflow flowing through the first air storage space 130 can also be achieved.

In some embodiments, a dust-proof element 103 or other filter element can be provided in the first air storage space 130 and / or the sound hole 101 to prevent external dust from entering the sound hole 101 or sound guide. The channel 140 may be disposed in a microphone in the housing assembly 100a.

The other end of the sound guide channel 140 corresponds to a microphone mounted on the housing body 102. The second air storage space 153 is located in the sound guide channel 140 between the first air storage space 130 and the microphone, and the first air storage space 130 and the second air storage space 153 are spaced apart along the sound guide channel 140. In some implementations, the second gas storage space 153 may adopt the same or similar structure as the first gas storage space 130, and has the same or similar function as the first gas storage space 130 to reduce the acoustic energy density of sound waves. After passing through the second gas storage space 153, the sound energy density of the sound wave is reduced again.

Please continue to refer to FIG. 1. In this embodiment, the sound guide channel 140 further includes a first sound guide section 150a and a second sound guide section 160a which are connected to each other. The first sound guide section 150a and the second sound guide section 160a are both disposed in the device.件件 122。 Set 122. In some embodiments, the first sound guide section 150a and the second sound guide section 160a may be formed by recessing the surface of the mounting member 122 into a groove shape, and formed by sealing with components such as foam. In some other embodiments, the first sound guide section 150a and / or the second sound guide section 160a may also be directly formed on the mounting member 122 by injection molding or stamping, and the first sound guide section 150a and / or the second The cross section of the sound guide segment 160a may be various shapes such as a circle, a polygon, an oval, or an oval. In order to facilitate sound propagation in the first and second guide sections 150a and 160a, the inner walls of the first and second guide sections 150a and 160a are preferably set as smooth inner walls.

The first sound guiding section 150a includes a first end 151 communicating with the first gas storage space 130 and a second end 152 communicating with the second sound guiding section 160a, that is, the first sound guiding section 150a is connected to the first gas storage space 130 and the first Between the two guide sections 160a, the first guide section 150a extends along a straight line, and the extending direction of the first guide section 150a is substantially parallel to the axial direction of the sound hole 101. In some embodiments, the first sound guide section 150a may also extend in a curved manner. Further, in this embodiment, the cross-sectional area of the first sound guide section 150a gradually decreases from the first end 151 to the second end 152, so that when a sound wave propagates in the first sound guide section 150a, the cross section The gradual reduction of the area is also conducive to the loss of energy caused by the collision of the sound wave with the inner wall of the first sound guide section 150a, and the reduction of the sound energy density of the sound wave.

In some embodiments, the inlet 131 and the outlet 132 may be oppositely disposed, that is, the projection of the inlet 131 on a plane L perpendicular to the axis direction of the sound hole 101 and the projection of the outlet 132 on a plane L perpendicular to the axis direction of the sound hole 101 coincide. After the first sound guide section 150a and the outlet 132 are communicated, the extension direction of the first sound guide section 150a coincides with the axis of the sound hole 101, so that the sound wave energy propagates straight into the first sound guide section 150a, and the speed of sound wave propagation is increased. In this embodiment, the inlet 131 and the outlet 132 are staggered from each other, so that when the sound waves propagate from the sound hole 101 into the first gas storage space 130, the propagation direction needs to be changed to propagate into the first sound guide section 150a, so as to extend the sound wave. The purpose of the propagation distance, thereby reducing the sound energy density of the sound wave. It can be understood that the inlet 131 and the outlet 132 are staggered with each other, which may be a stagger between the inlet 131 and the outlet 132, that is, the projection of the inlet 131 on a plane L perpendicular to the axis direction of the sound hole 101 and the outlet 132 are located perpendicular to The projection part of the plane L of the axis direction of the sound hole 101 coincides; the inlet 131 and the outlet 132 may be completely staggered, that is, the projection of the inlet 131 on the plane L perpendicular to the axis direction of the sound hole 101 and the outlet 132 are located at The projection of the plane L perpendicular to the axial direction of the sound hole 101 does not coincide at all.

The second guide section 160a is bent relative to the first guide section 150a. The advantage of setting the second guide section 160a to be bent with the first guide section 150a is that when the airflow enters along the first guide section 150a, When the second sound guiding section 160a is bent, the sound waves collide with the inner wall of the sound guiding channel 140 due to bending in the extending direction of the sound guiding channel 140, thereby further reducing the sound wave energy. In some embodiments, the angle γ at which the second sound guide segment 160a is bent relative to the first sound guide segment 150a may be, for example, 30 ° -150a °. Particularly, in this embodiment, an included angle γ between the second sound guide section 160a and the first sound guide section 150a is 90 °. It can be understood that the angle γ at which the second sound guide section 160a is bent with respect to the first sound guide section 150a refers to the angle between the extension direction of the second sound guide section 160a and the extension direction of the first sound guide section 150a. It can be understood that the extending direction of the first sound guiding section 160a and / or the second sound guiding section 150a refers to a direction in which the sound guiding channel 140 propagates from the sound hole 101 to the microphone, that is, a direction extending toward the microphone.

A second air-storage space 153 is formed at the connection between the first sound-guiding section 150a and the second sound-guiding section 160a. Specifically, referring to FIG. 1, the second air-storing space 153 and the first sound-guiding section 150a and the second sound-guiding section. The communication portion of 160a is communicated, and the structure of the second gas storage space 153 is substantially the same as that of the second sound guiding section 160a. The second gas storage space 153 is extended and formed in a direction opposite to the extending direction of the second sound guiding section 160a. In other embodiments, the second air storage space 153 may be formed by being extended in the same direction as the first sound guide section 150a. Alternatively, the second air storage space 153 is formed by being extended in a direction at an arbitrary angle with the first sound guide section 150a and / or the second sound guide section 160a.

When the airflow enters the second sound guide section 160a from the first sound guide section 150a, a part of the air flow flows into the second air storage space 153, which can further reduce the sound energy density of the sound wave. After the airflow propagates through the second sound guide section 160a, it can directly flow into the microphone. In this embodiment, referring to FIGS. 1 and 2, the housing body 120 is provided with a mounting groove 104 for mounting a microphone, and an end of the second sound guiding section 160 a away from the second air storage space 153 communicates with the mounting groove 104. In application, the microphone is affixed in the mounting groove 104, and the microphone's sound guide hole 101 and the second sound guide section 160a can communicate with each other.

In the housing assembly 100a provided in this embodiment, since the first air storage space 130 and the second air storage space 153 are provided, the sound energy density of the sound wave entering the sound guide channel 140 from the sound hole 101 gradually decreases during the propagation process. When the sound wave propagates to the microphone, the microphone will not break due to the excessive sound energy density.

As another implementation manner of this embodiment, this embodiment further provides a housing assembly 100a '. Referring to FIG. 3, the housing assembly 100a' includes only the middle frame 120, and the middle frame 120 includes a frame 121 and a mounting member 122. The frame 121 is enclosed in a ring shape. The mounting member 122 is assembled in the frame 121 and is located in the frame 121. The mounting member 122 can be connected to the frame 121 by integral molding, dispensing or welding. The frame 121 surrounds the middle frame 120 and can be directly exposed as a decorative surface. At this time, the sound hole 101 only includes the sound inlet hole 122 provided in the middle frame 120, and an optional dustproof member 103 is provided in the sound hole 122 for Prevent dust from entering the sound guide channel 140. The first gas storage space 130 is disposed on the mounting member 122 of the middle frame 120 and communicates with the sound inlet hole 122. The remaining structure is the same as that of the case assembly 100a.

Second embodiment

Referring to FIGS. 4 and 5, this embodiment provides a housing assembly 100 b. Compared with the first embodiment, the structure of the second sound guide segment 160 b is different in this embodiment, and the remaining structure is the same as that of the first embodiment. For the same part, refer to the first embodiment.

Specifically, referring to FIG. 4, in this embodiment, the second sound guiding section 160 b includes a first channel 170 b and a second channel 180 b that are connected, and the first channel 170 b and the second channel 180 b are both installed on the middle frame 120. 122 on. The first channel 170b is in communication with the second gas storage space 153, and the extending direction of the first channel 170b is perpendicular to the extending direction of the first sound guide section 150b. That is, the extending direction of the first channel 170b is perpendicular to the axial direction of the sound hole 101. It can be understood that, in other embodiments, the extending direction of the first channel 170b and the extending direction of the first sound guide section 150b may be set at other angles.

The second channel 180b is bent with respect to the first channel 170b, and a third air storage space 190 is formed at a connection between the first channel 170b and the second channel 180b to reduce a sound energy density of a sound wave propagating along the sound guide channel 140. The role of the third gas storage space 190 is to reduce the sound energy density of the sound waves propagating along the sound guide channel 140. In this way, when the sound wave propagating from the first channel 170b to the second channel 180b is transmitted to the third gas storage space 190, part of the energy is lost due to the collision, and the sound energy density is further reduced.

In some embodiments, the extending direction of the second channel 180 b may be disposed in a direction parallel to the surface of the mounting member 122. In this embodiment, participating in FIG. 5, the extending direction of the second channel 180 b is set along a direction perpendicular to the surface of the mounting member 122. That is, the extending direction of the first channel 170b and the extending direction of the second channel 180b are perpendicular to each other. The third gas storage space 190 may be formed by being extended and extended in a direction opposite to the extending direction of the second channel 180b, and the third gas storage space 190 is formed at a communication between the first channel 170b and the second channel 180b.

In this way, when the sound waves enter the second channel 180b from the first channel 170b, not only the sound energy density is reduced due to the change of the propagation direction, but also the existence of the third gas storage space 190 will reduce its sound energy density, which further reduces the microphone. Risk of rupture.

In order to further reduce the acoustic energy density of the sound wave, a bending structure may be provided in the first channel 170b and / or the second channel 180b, and the sound wave collides with the inner wall of the sound guide channel 140 to further reduce the sound wave energy and reduce the microphone film The purpose of risk. In some embodiments, the first channel 170b may include a redirection section 173, which is used to change the direction of sound wave propagation. During the change of sound wave direction, the sound wave energy is slightly lost due to the collision, which further reduces the sound energy density. The direction changing section 173 can achieve the purpose of energy loss by providing a meandering or bending extension, for example. The direction change segment can be a direction change or multiple changes.

In this embodiment, the first channel 170b includes a first section 171, a second section 172, and a reversing section 173, which are connected between the first section 171 and the second section 172 and extend along a straight line. A section 171 is in communication with the second gas storage space 153, and a second section 172 is in communication with the second channel 180b. There is a first included angle α between the extending direction of the first section 171 and the extending direction of the redirecting section 173. The first included angle α may be 0 ° <α <180 °, and preferably 90 ° <α <180 °. There is a second included angle β between the extending direction of the second section 172 and the extending direction of the redirecting section 173. The second included angle β may be 0 ° <β <180 °, and preferably 90 ° <β <180 °.

In this way, when the sound wave propagates in the first channel 170b, the propagation path is not straight, which further reduces the sound energy density of the sound wave and reduces the risk of the microphone breaking. When the sound wave propagates through the first channel 170b, it changes direction for the first time through the connection between the first section 171 and the direction changing section 173, and passes through the connection between the direction changing section 173 and the second section 172 for the second time.

In other partial implementations, the direction changing section 173 may not be extended along a straight line, but may be directly provided in a meandering or bent structure.

The extending direction of the first section 171 and the extending direction of the second section 172 are parallel to each other, and the first included angle α and the second included angle β are equal. In other embodiments, the extending direction of the first section 171 and the extending direction of the second section 172 may be at any angle. Such a setting method can reasonably arrange the positions of the microphones according to the space size of the mounting member 122 so that the microphones do not conflict with other electrical components of the electronic device 200, and provide possibilities for various structural designs of the electronic device 200.

In the housing assembly 100b provided in this embodiment, since the first air storage space 130, the second air storage space 153, and the third air storage space 190 are provided, the sound waves that enter the sound guide channel 140 from the sound hole 101 during the propagation process The sound energy density gradually decreases, and when the sound wave propagates to the microphone, the microphone will not break due to the excessive sound energy density. At the same time, because the second sound guiding section 160b adopts a bent design, the sound wave will collide with the housing body 102 to reduce energy during propagation, and further reduce the sound energy density.

Third embodiment

6 and FIG. 7, this embodiment provides an electronic device 200. The electronic device 200 includes a microphone 210 and a housing assembly. The housing assembly uses the housing assembly 100b shown in the second embodiment. The structure can refer to the second embodiment. It can be understood that the technical features in the first embodiment and the second embodiment can be combined or combined with each other, and can be applied to the electronic device 200 shown in FIG. 6.

Specifically, referring to FIGS. 6 and 7, the microphone 210 is mounted on the middle frame 120 of the housing assembly 100 and is located on the inner surface of the mounting member 122. The microphone 210 can be attached to the inner surface of the mounting member 122 by bonding. The sound guide hole 101 of the microphone 210 communicates with the second channel 180b, so that external sound waves enter the sound guide channel 140 along the sound hole 101, and sequentially pass through the sound channel 101. The first gas storage space 130 and the second gas storage space 153 are propagated into the microphone, and the sound wave reduces the sound energy density in the first gas storage space 130 and the second gas storage space 153. By providing the first air storage space 130, the second air storage space 153, and the third air storage space 190, the sound energy density during sound wave propagation is reduced, and the microphone 210 is not easy to break the membrane, which greatly extends the use of the microphone 210 and the electronic device 200 life.

It should be understood that the electronic device 200 further includes other components such as a processor, a memory, and the like, as these components do not belong to the core content of this application, and are not shown in the drawings. For the structure and specific connection methods, refer to the prior art to understand. And achieve.

It can be understood that the housing assembly 100b in this embodiment may be replaced by or combined with the housing assembly 100a. The electronic device 200 may be a mobile terminal such as a mobile phone, a tablet computer, a PC, or a smart watch, or may be another electronic device.

The above description is only a preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, this application may have various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A shell component, comprising:

A housing body provided with a sound hole and a sound guiding channel, one end of the sound guiding channel is in communication with the sound hole, and the other end of the sound guiding channel is connected to a microphone installed in the housing body Correspondingly, the sound guiding channel includes a first gas storage space and a second gas storage space for reducing a sound energy density of a sound wave propagating along the sound guiding channel, and the first gas storage space and the second gas storage space Air spaces are sequentially spaced along the sound-guiding channel.
The housing assembly according to claim 1, wherein the first air storage space is located at one end of the sound guide channel, and the sound hole communicates with the sound guide channel through the first air storage space. The second air storage space is located in the sound guiding channel between the first air storage space and the microphone.
The housing assembly according to claim 1, wherein the housing body comprises:

shell;

A middle frame, the middle frame being assembled with the casing and adapted to install the microphone, the middle frame is provided with the sound guiding channel, and the sound hole communicates with the sound guiding channel and runs through the casing .
The housing assembly according to claim 1, wherein the housing body comprises:

The middle frame includes a frame and a mounting member, the frame is provided with the sound hole, the mounting member is suitable for mounting the microphone, and the mounting member is provided with the sound guiding channel.
The housing assembly according to claim 1, wherein the first gas storage space has an inlet and an outlet, the inlet is in communication with the sound hole, the outlet is in communication with the sound guiding channel, and The inlet and the outlet are staggered from each other.
The housing assembly according to claim 1, wherein the sound-guiding channel further comprises a first sound-guiding segment and a second sound-guiding segment, and the first sound-guiding segment is connected to the first storage tank. Between the air space and the second guide section, the second guide section is bent relative to the first guide section, and a connection between the first guide section and the second guide section is formed The second gas storage space.
The housing assembly according to claim 6, wherein an extension direction of the first sound guide section is parallel to an axial direction of the sound hole.
The housing assembly according to claim 6, wherein a cross-sectional area of the sound hole is smaller than a projected area of the first gas storage space in a plane perpendicular to an axis direction of the sound hole, and The cross-sectional area of the first sound guiding section is smaller than the projected area of the first air storage space on the plane.
The housing assembly according to claim 6, wherein the first sound guiding section comprises a first end communicating with the first air storage space and a second end communicating with the second sound guiding section, and The cross-sectional area of the first sound guide section gradually decreases from the first end to the second end.
The housing assembly according to claim 6, wherein the second sound-guiding section comprises a first channel and a second channel that are in communication, the first channel is in communication with the second gas storage space, and The second channel is bent with respect to the first channel, and a third air-storage space for reducing a sound energy density of a sound wave propagating along the sound-guiding channel is formed at a connection between the first channel and the second channel.
The housing assembly according to claim 10, wherein an extension direction of the first channel is perpendicular to an axis direction of the sound hole, and an extension direction of the second channel is perpendicular to an extension of the first channel direction.
The housing assembly according to claim 10, wherein the middle frame has an inner surface, an extending direction of the second channel is perpendicular to the inner surface, and an extending direction of the first channel is parallel to the inner surface The inner surface.
The housing assembly according to claim 10, wherein the first channel includes a redirecting section for changing a direction of propagation of sound waves.
The housing assembly according to claim 13, wherein the first channel further comprises a first segment and a second segment that are in communication, and the reversing segment is connected to the first segment and the second segment In between, the first section is in communication with the second gas storage space, and the second section is in communication with the second channel.
The housing assembly according to claim 14, wherein the redirecting section extends along a straight line, and there is a first angle between the extending direction of the first section and the extending direction of the redirecting section, so There is a second included angle between the extending direction of the second section and the extending direction of the redirecting section.
An electronic device, comprising:

The housing assembly according to any one of claims 1-15,

A microphone, which is disposed on the housing body, and the microphone receives sound through the sound guiding channel.
An electronic device, comprising:

microphone;

A housing body provided with a sound hole and a sound guide channel, the sound guide channel comprising a first air storage space and a second air storage space for reducing a sound energy density of a sound wave propagating along the sound guide channel In air space, one end of the sound guiding channel is in communication with the sound hole, and the other end of the sound guiding channel corresponds to the microphone, so that external sound waves enter the sound guiding channel along the sound hole, and sequentially pass through the sound hole. The first gas storage space and the second gas storage space propagate into the microphone.
The electronic device according to claim 17, wherein the first gas storage space is located at one end of the sound guiding channel, and the sound hole communicates with the sound guiding channel through the first gas storage space, The second air storage space is located in the sound-guiding channel between the first air storage space and the microphone.
The electronic device according to claim 17, wherein the first gas storage space has an inlet and an outlet, the inlet is in communication with the sound hole, the outlet is in communication with the sound guiding channel, and the inlet And the exits are staggered from each other.
The electronic device according to claim 17, wherein the sound-guiding channel further comprises a first sound-guiding segment and a second sound-guiding segment, and the first sound-guiding segment is connected to the first gas storage Between the space and the second guide section, the second guide section is bent with respect to the first guide section, and a connection is formed between the first guide section and the second guide section. The second gas storage space is described.