Shell and electronic equipment

Abstract

The utility model discloses a shell and electronic equipment, relates to the technical field of electronic equipment, and can improve the audio playing effect of the electronic equipment. The interior of the housing is provided with an electroacoustic device installation position used for installing an electroacoustic device. The shell comprises a first wall plate, and the first wall plate is provided with a sound channel used for communicating a sound production hole of the electroacoustic device and an outer environment space of the shell; the sound channel comprises a sound outlet hole and a sound transmission channel which are communicated with each other, and the sound outlet hole and the sound transmission channel are arranged in the direction from the outer side of the shell to the interior of the shell; the electroacoustic device mounting position is located on one side of the central axis of the sound outlet hole in a first direction, and the first direction is perpendicular to the central axis of the sound outlet hole; one end area, close to the electroacoustic device mounting position in the first direction, of the inner end opening of the sound outlet hole is a first area; one end, close to the sound outlet hole, of the sound transmission channel is a sound outlet port, and at least one part of the sound outlet port directly faces and is communicated with the first area. The middle frame provided by the embodiment of the utility model is applied to the electronic equipment.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a housing and an electronic equipment. Background Art

[0002] With the development of science and technology, various electronic devices have emerged. Different electronic devices have different functions according to usage requirements. Some electronic devices have a sound transmission function and can transmit sound to the outside. These electronic devices have electroacoustic devices such as speakers and receivers, and generate sound through the sound of the electroacoustic devices.

[0003] The electroacoustic device is connected to the sound channel on the housing of the electronic device to achieve outward transmission of sound. The sound transmission effect of the sound channel in the related art is poor, resulting in that the audio playback effect of the electronic device cannot meet the user's usage requirements. Utility Model Content

[0004] The present application provides a housing and an electronic device, which can help improve the audio playback effect of the electronic device.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, some embodiments of the present application provide a housing, wherein the housing has an electroacoustic device installation position inside, and the electroacoustic device installation position is used to install the electroacoustic device; the housing includes a first wall plate, and the first wall plate has a sound channel, and the sound channel connects the sound hole of the electroacoustic device and the external environment space of the housing;

[0007] Specifically, the sound channel includes a connected sound outlet hole and a sound transmission channel, and the sound outlet hole and the sound transmission channel are arranged in a direction from the outside of the shell to the inside of the shell; the outer end opening of the sound outlet hole is located on the outer wall surface of the first wall panel; the electroacoustic device mounting position is located on one side of the central axis of the sound outlet hole in the first direction, and the first direction is perpendicular to the central axis of the sound outlet hole; the end area of ​​the inner end opening of the sound outlet hole along the first direction close to the electroacoustic device mounting position is the first area; the first area can be a partial area of ​​the inner end opening of the sound outlet hole, or it can be the entire area of ​​the inner end opening of the sound outlet hole.

[0008] One end of the sound transmission channel adjacent to the sound outlet is a sound outlet port, and at least a portion of the sound outlet port is opposite to and connected to the first area; that is, the entire sound outlet port may be opposite to and connected to the first area of ​​the sound outlet port, or a portion of the sound outlet port may be opposite to and connected to the first area of ​​the sound outlet port. In the direction from the outer wall surface of the first wall panel to the inner wall surface of the first wall panel, the sound transmission channel extends obliquely toward the direction of the electroacoustic device installation position relative to the central axis of the sound outlet hole. Specifically, in the direction from the outer wall surface of the first wall panel to the inner wall surface of the first wall panel, the sound transmission channel extends obliquely toward the direction of the center of the electroacoustic device installation position relative to the central axis of the sound outlet hole.

[0009] In the embodiment of the present application, since the sound transmission channel is designed to extend obliquely relative to the central axis of the sound outlet hole toward the direction of the electroacoustic device installation position in the direction from the outer wall surface of the first wall plate to the inner wall surface of the first wall plate, at least a part of the sound outlet port is opposite to and connected with the first area of ​​the sound outlet hole. In this way, it is beneficial to increase the area of ​​the sound outlet port opposite to the inner end opening of the sound outlet hole, so that the diffusion of sound in the propagation process is enhanced, so that the distribution of sound at the sound outlet hole is more uniform, which is beneficial to improve the sound transmission effect of the sound channel, and then to improve the audio playback effect of the electronic device. Moreover, in this way, the sound outlet airflow can be guided through the sound transmission channel, and the sound outlet airflow is guided to the area closer to the second end of the sound outlet hole, so as to improve the balance of the sound emitted from different areas of the sound outlet hole, and further improve the situation that the volume heard by the left and right ears is inconsistent when the user holds the electronic device with his left and right hands interchangeably. In addition, the setting of the sound transmission channel extending obliquely relative to the central axis of the sound outlet hole toward the direction of the electroacoustic device installation position can also be beneficial to increase the length of the sound transmission channel, so as to dissipate the energy of the sound outlet airflow, reduce the flow rate of the sound outlet airflow, reduce the noise caused by the airflow, and improve the sound quality.

[0010] In a possible implementation of the first aspect, the shell includes a plastic part and a metal part, and the plastic part is attached to the metal part to be connected to the metal part as a whole. At least a portion of the sound hole is located on the metal part. That is, the sound hole may be partially molded on the metal part, or the entire sound hole may be molded on the metal part. It should be noted that when a portion of the sound hole is molded on the metal part, the sound hole except the portion located on the metal part is molded on the plastic part.

[0011] The sound transmission channel is formed on the plastic part. In this way, on the one hand, it is beneficial to fit the plastic part to the metal part through the injection molding process and connect it with the metal part as a whole, which can simplify the processing technology and reduce the manufacturing cost. On the other hand, the cost of raw materials for making the second frame can be reduced. On the other hand, since the sound transmission channel is located on the side of the sound outlet close to the inside of the second shell, the plastic part is also located on the side of the metal part close to the inside of the second shell. Therefore, the external opening of the sound outlet is located on the metal part. In this way, the damage resistance and durability of the sound outlet can be improved. In addition, since the sound transmission channel is formed on the plastic part, the sound outlet airflow first flows through the plastic part and then flows through the metal part. In this way, the sound waves can be better absorbed with the help of the plastic part, which is conducive to reducing echoes and noise.

[0012] In a possible implementation of the first aspect, the cross-sectional area of ​​the sound transmission channel gradually increases in the direction from the outer side of the shell to the inner side of the shell, so that when the plastic part is molded by injection molding, demoulding can be facilitated.

[0013] In a possible implementation of the first aspect, the sound channel also includes a connecting channel, which is located at one end of the sound transmission channel away from the sound outlet and is connected to the sound transmission channel, and the connecting channel has a sound inlet located on the inner wall surface of the first wall plate. The cross-sectional area of ​​the connecting channel is larger than the cross-sectional area of ​​the sound transmission channel; in the direction from the outer wall surface of the first wall plate to the inner wall surface of the first wall plate, the connecting channel extends obliquely toward the direction away from the central axis of the sound outlet, and the cross-sectional area of ​​the connecting channel gradually increases. In this way, when the plastic part is molded by the injection molding process, it can be easier for the injection mold to be separated from the sound transmission channel and the connecting channel.

[0014] In a possible implementation of the first aspect, the sound channel has a sound inlet located on the inner wall surface of the first wall plate. In this way, the structure of the sound channel is simple and easy to shape.

[0015] In a possible implementation of the first aspect, the sound channel has a sound inlet located on the inner wall surface of the first wall plate; the inner wall surface of the first wall plate has a mounting groove, and the sound inlet is located on the bottom wall of the mounting groove. In this way, when the housing is applied to electronic equipment, it is convenient to assemble the dustproof net.

[0016] In some embodiments, the bottom wall of the installation groove is tilted relative to the second middle plate, so that the dustproof net can be tilted to fit the electroacoustic device with the wall where the sound hole is located tilted.

[0017] In a possible implementation of the first aspect, the shell includes a frame and a middle plate, the frame is arranged around the middle plate, and the frame has a first wall plate; the sound channel has a sound inlet located on the inner wall surface of the first wall plate; the middle plate has an electroacoustic device mounting position, and the electroacoustic device mounting position is located on the side facing the sound inlet; a first protrusion and a second protrusion are provided on the middle plate, the first protrusion and the second protrusion are located on opposite sides of the sound inlet in a first direction, the first protrusion and the second protrusion are both connected to the first wall plate, and the electroacoustic device mounting position is located between the first protrusion and the second protrusion.

[0018] In this way, the structural strength of the second middle plate can be increased, and it can also serve as a foundation for the installation of other electronic components. And because the electroacoustic device installation position is located between the first convex portion and the second convex portion, when the electroacoustic device is installed, the first convex portion and the second convex portion can play a role in installing and positioning the electroacoustic device.

[0019] In a possible implementation of the first aspect, in the first direction, the second protrusion is arranged relative to the first protrusion away from the central axis of the sound outlet, and in the direction from the outer wall surface of the first wall plate to the inner wall surface of the first wall plate, a portion of the second protrusion adjacent to the sound inlet extends obliquely in a direction away from the first protrusion. In this way, when the plastic part is molded by the injection molding process, an escape area can be provided for the injection mold to facilitate the injection mold to be separated from the sound transmission channel.

[0020] In a possible implementation of the first aspect, the sound outlet is located in the middle area of ​​the first wall plate in the first direction. In this way, when the user holds the electronic device with his left and right hands interchangeably, the problem of inconsistent volume heard by the left and right ears can be improved to the greatest extent. On the other hand, the best visual effect can be provided to the user.

[0021] In a possible implementation of the first aspect, the sound channel also includes a sound guide cavity, which is located between the sound transmission channel and the sound outlet hole and connects the sound transmission channel and the sound outlet hole, and the remaining area of ​​the inner end opening of the sound outlet hole except the first area is the second area; the sound guide cavity includes a first cavity portion and a second cavity portion arranged and connected in a first direction, and the first cavity portion, the sound outlet port, and the first area are directly opposite in the extension direction of the central axis of the sound outlet hole; the second cavity portion and the second area are directly opposite in the extension direction of the central axis of the sound outlet hole, and the second cavity portion and the sound outlet port are staggered in the extension direction of the central axis of the sound outlet hole. In this way, the sound outlet airflow in the sound transmission channel can be guided into the end area of ​​the sound outlet hole close to the second end through the sound guide cavity, so that the sound is more evenly distributed in the sound outlet hole, thereby improving the audio playback effect.

[0022] In a possible implementation of the first aspect, the sound outlet includes a plurality of sub-sound outlets, the plurality of sub-sound outlets are evenly spaced and distributed in the first direction, each sub-sound outlet has an inner opening, and the inner openings of the plurality of sub-sound outlets define an inner end opening. This helps to disperse and merge the sound, and is beneficial to improving the sound quality.

[0023] In a possible implementation of the first aspect, the multiple sub-sound holes include a first sub-sound hole; in a first direction, the sound transmission channel has a first side wall surface and a second side wall surface relative to each other, and the first side wall surface is located on a side of the second side wall surface close to the central axis of the sound hole; in an extension direction of the central axis of the sound hole, the sub-sound hole directly opposite to the first side wall surface is the first sub-sound hole; a sound guide groove is formed on the inner peripheral wall of the first sub-sound hole, and the sound guide groove is connected to an inner opening of the first sub-sound hole; in the first direction, the sound guide groove is located on a side of the central axis of the first sub-sound hole close to the second side wall surface.

[0024] In this way, the area of ​​the opening in the first sub-sound hole facing the sound transmission channel can be increased, which is conducive to allowing more sound airflow to enter the first sub-sound hole and improving the loudness of the sound transmitted by the first sub-sound hole.

[0025] In a possible implementation of the first aspect, in the direction from the outer wall surface of the first wall plate to the inner wall surface of the first wall plate, the bottom wall of the sound guide groove extends obliquely in a direction away from the central axis of the first sub-sound outlet. In this way, the sound guide groove can be used to guide the sound outlet airflow, so that the sound outlet airflow enters the first sub-sound outlet more smoothly, thereby reducing noise caused by the sound outlet airflow hitting the wall surface and improving sound quality.

[0026] In a possible implementation of the first aspect, a distance between one end of the sound guide groove close to the outer wall surface of the first wall panel and the outer wall surface of the first wall panel in a direction from the outer wall surface of the first wall panel to the inner wall surface of the first wall panel is greater than or equal to 0.2 mm. In this way, damage to the outer wall surface of the first wall panel can be avoided when forming the sound guide groove.

[0027] In a second aspect, some embodiments of the present application provide an electronic device, comprising: an electroacoustic device and a housing as described in any of the above technical solutions; the electroacoustic device is installed on an electroacoustic device installation position.

[0028] Since the electronic device provided in the embodiment of the present application includes a housing as described in any of the above technical solutions, the two can solve the same technical problems and achieve the same technical effects.

[0029] In a possible implementation of the second aspect, the electronic device further includes a screen and a camera module; the screen has a light-transmitting portion; the housing includes a frame and a middle plate, the middle plate and the screen are stacked, the frame is arranged around the middle plate and the screen, and the frame has a first wall plate; the middle plate has an electroacoustic device mounting position; the camera module is mounted on the middle plate, and the light incident end of the camera module is directly opposite to the light-transmitting portion; the camera module and the sound outlet are arranged in the extension direction of the central axis of the sound outlet, and the electroacoustic device is located on one side of the camera module in the first direction. In this way, the electroacoustic device and the camera module are arranged side by side in the first direction. In this way, the camera module and the electroacoustic device do not need to be stacked, which is conducive to realizing the lightness and thinness of the electronic device.

[0030] In a possible implementation of the second aspect, the electronic device further includes a dustproof net, which is fixed to the inner wall surface of the first wall plate and is arranged between the sound inlet and the sound hole of the sound channel. In this way, dust can be prevented from entering the interior of the speaker module from the sound channel and affecting the performance of the speaker module.

[0031] In a possible implementation of the second aspect, the sound channel has a sound inlet located on the inner wall surface of the first wall plate; the inner wall surface of the first wall plate has a mounting groove, and the sound inlet is located on the bottom wall of the mounting groove; and the dustproof net is fixedly connected to the mounting groove. In this way, positioning can be provided for the installation of the dustproof net, thereby improving the installation accuracy and efficiency of the dustproof net.

[0032] In a possible implementation of the second aspect, the bottom wall of the installation groove is arranged obliquely relative to the second middle plate, so that the dustproof net can be arranged obliquely to adapt to the electroacoustic device arranged obliquely on the wall where the sound hole is located. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the structure of a foldable electronic device provided in some embodiments of the present application;

[0034] Figure 2 Based on Figure 1 A schematic diagram of an electronic device in an unfolded state is shown;

[0035] Figure 3 Based on Figure 1 A perspective view of the foldable electronic device shown in a folded state;

[0036] Figure 4 Based on Figure 1 an exploded schematic diagram of the electronic device shown;

[0037] Figure 5 Based on Figure 2 The schematic diagram of the cross-sectional structure of the electronic device shown is taken along line AA;

[0038] Figure 6 for Figure 4 A schematic diagram of the assembly of the second housing, the electroacoustic device and the camera module in the electronic device shown;

[0039] Figure 7 Schematic diagram of assembly of a second housing and an electroacoustic device provided in some other embodiments of the present application;

[0040] Figure 8 A partial structural schematic diagram of a second housing provided in some other embodiments of the present application;

[0041] Fig. 9 for Figure 8 A partial three-dimensional cross-sectional structural schematic diagram of the second housing shown;

[0042] Fig.10 for Fig. 9 An enlarged view of the circled portion of the second housing shown at A;

[0043] Fig.11 for Figure 8 A partial structural schematic diagram of the second shell shown;

[0044] Fig.12 A schematic diagram of the structure of a second housing provided in some other embodiments of the present application;

[0045] Fig.13 According to Figure 7 and Figure 8 The schematic diagram of the comparison of the simulation effect of the sound outlet airflow velocity of the sound channel of the embodiment shown, wherein: Fig.13 Part (a) of Figure 7 A schematic diagram of the sound outlet airflow velocity of the sound channel of the illustrated embodiment; Fig.13 Part (b) of Figure 8 A schematic diagram of the air flow velocity of the sound channel of the illustrated embodiment. DETAILED DESCRIPTION

[0046] In the embodiments of the present application, the terms "exemplarily" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a specific way.

[0047] In the description of the embodiments of the present application, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present application generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0049] In the description of the embodiments of the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0050] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within ±10°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within ±10°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, the difference between the two equalities is less than or equal to 5% of either one.

[0051] The present application provides an electronic device. The electronic device is a type of electronic device including an electroacoustic device. Specifically, the electronic device may be a portable terminal device or other suitable terminal device. For example, the electronic device includes but is not limited to a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a personal computer, a notebook computer, a vehicle-mounted device, etc. The electronic device may be a flat electronic device or a foldable electronic device.

[0052] In the following description, an electronic device that is a foldable electronic device is taken as an example for illustration.

[0053] For a foldable electronic device, under different usage requirements, the foldable electronic device can be unfolded to an unfolded state or folded to a folded state.

[0054] See also Figure 1 , Figure 1 A schematic diagram of a foldable electronic device 100 provided in some embodiments of the present application. In this embodiment, the foldable electronic device 100 is a foldable mobile phone, which does not constitute a special limitation of the present application. Specifically, the foldable electronic device 100 includes a foldable screen 1, a housing assembly 2, a screen ( Figure 1 (not shown), circuit board 4, camera module 5, electroacoustic device 6. Figure 1 In the figure, since the circuit board 4, the camera module 5 and the electro-acoustic device 6 are hidden inside the electronic device 100, the outlines are shown with dotted lines.

[0055] Understandably, Figure 1 Only some components of the foldable electronic device 100 are schematically shown, and the actual shapes, sizes, positions and structures of these components are not subject to any restriction. Figure 1 restrictions.

[0056] The folding screen 1 is used to display images, videos, etc. Specifically, the folding screen 1 can be, but is not limited to, an organic light-emitting diode (OLED) display screen or an active-matrix organic light-emitting diode (AMOLED) display screen, and the like.

[0057] See also Figure 2 , Figure 2 Based on Figure 1Schematic diagram of an electronic device 100 in an unfolded state is shown. The folding screen 1 includes a first part 11, a second part 12, and a third part 13 connected between the first part 11 and the second part 12. Among them, at least the third part 13 of the first part 11, the second part 12 and the third part 13 of the folding screen 1 is made of flexible material to allow the folding screen 1 to switch between the unfolded state and the folded state. The first part 11 and the second part 12 can be made of flexible material, or can be made of rigid material, or can be made of partially rigid material and partially flexible material, which is not specifically limited here.

[0058] In order to facilitate the description of the following embodiments, an XYZ coordinate system is established for the second part 12. Specifically, the length direction of the second part 12 is defined as the Y-axis direction (that is, the extension direction of the folding axis of the folding screen 1), the thickness direction of the second part 12 is defined as the Z-axis direction, and the direction perpendicular to both the Y-axis direction and the Z-axis direction is defined as the X-axis direction (that is, the width direction of the second part 12). It can be understood that the coordinate system setting is not limited to this, and can be flexibly set according to actual needs, and is not specifically limited here.

[0059] The folding screen 1 can switch between an unfolded state and a folded state. When the folding screen 1 is in the unfolded state, Figure 2 As shown, the first part 11, the second part 12 and the third part 13 are arranged in the same plane and in the same direction. In this state, a large screen display can be achieved, which can provide users with richer information and bring users a better use experience.

[0060] See also Figure 3 , Figure 3 Based on Figure 1 The foldable electronic device 100 is in a folded state. When the foldable screen 1 is in the folded state, the third part 13 is in a bent state, and the first part 11 ( Figure 3 ) and the second part 12 ( Figure 3 In this state, the foldable screen 1 is not visible to the user, and the housing assembly 2 is protected outside the foldable screen 1 to prevent the foldable screen 1 from being scratched by hard objects. In this way, the foldable electronic device 100 is an inward-folding electronic device 100. In this state, the volume of the foldable electronic device 100 can be reduced, making it easier to store and carry the foldable electronic device 100.

[0061] The housing assembly 2 is used to support and fix the folding screen 1, and to accommodate and protect the internal electronic components of the foldable electronic device 100. At the same time, the housing assembly 2 can allow the folding screen 1 to switch between the unfolded state and the folded state. Figure 4 , Figure 4 Based on Figure 1The exploded schematic diagram of the electronic device 100 is shown. Specifically, the housing assembly 2 includes a first housing 21 , a second housing 22 and a rotating shaft mechanism 23 .

[0062] Understandably, Figure 4 Only some components of the housing assembly 2 are schematically shown, and the actual shapes, sizes, positions and structures of these components are not subject to the present invention. Figure 4 restrictions.

[0063] The first shell 21 is used to fix and support the first part 11 of the folding screen 1 in the figure. Specifically, the first shell 21 has a supporting surface M1. The first shell 21 fixes and supports the first part 11 of the folding screen 1 through the supporting surface M1. Exemplarily, the connection relationship between the supporting surface M1 and the first part 11 includes but is not limited to gluing. The material of the first shell 21 includes but is not limited to metal, ceramic, plastic and glass. In order to achieve the lightness and thinness of the electronic device 100 while ensuring the structural strength of the first shell 21, the material of the first shell 21 can be selected as metal.

[0064] The second shell 22 is used to fix and support the second part 12 of the folding screen 1. Specifically, the second shell 22 has a support surface M2. The second shell 22 fixes and supports the second part 12 of the folding screen 1 in the figure through the support surface M2. Exemplarily, the connection relationship between the support surface M2 and the second part 12 includes but is not limited to gluing. The material of the second shell 22 includes but is not limited to metal, ceramic, plastic and glass. In order to achieve the lightness and thinness of the electronic device 100 while ensuring the structural strength of the second shell 22, the material of the second shell 22 can be selected as metal.

[0065] The hinge mechanism 23 is used to support the third part 13 of the folding screen 1. Specifically, the hinge mechanism 23 has a support surface M3. The hinge mechanism 23 can support the third part 13 of the folding screen 1 through the support surface M3. The hinge mechanism 23 is connected between the first shell 21 and the second shell 22. The first shell 21 and the second shell 22 are configured to be rotatably connected through the hinge mechanism 23 to enable the foldable electronic device 100 to switch between the unfolded state and the folded state. The specific structure and working principle of the hinge mechanism 23 are well known to those skilled in the art and will not be repeated here.

[0066] See also Figure 4 and Figure 5 , Figure 5 Based on Figure 2 The cross-sectional structure diagram of the electronic device 100 at line AA is shown. The first housing 21 includes a first middle frame and a first back cover 213 .

[0067] Specifically, the first middle frame includes a first middle plate 211 and a first frame 212 .

[0068] The first middle plate 211 is in the shape of a flat plate. For example, the first middle plate 211 is in the shape of a rectangular flat plate or a rounded rectangular flat plate. Of course, in other examples, the first middle plate 211 can also be in the shape of a semicircular flat plate, a diamond flat plate, an oblong flat plate, an elliptical or a special shape. One side surface of the first middle plate 211 in the thickness direction is formed as the above-mentioned support surface M1. The material of the first middle plate 211 includes but is not limited to glass, plastic or ceramic.

[0069] The first frame 212 is arranged around the edge of the first middle plate 211, and the first frame 212 is arranged around the edge of the first part 11. In some examples, the first frame 212 and the first middle plate 211 are integrally formed, which is conducive to improving the connection strength between the first frame 212 and the first middle plate 211, simplifying the processing technology, and reducing the assembly cost. In other examples, the first frame 212 and the first middle plate 211 can also be assembled and connected, and the assembly connection method is not limited to gluing, welding, clamping or screw connection. Such a setting can simplify the mold structure of the first frame 212 and the first middle plate 211, and facilitate the independent processing and manufacturing of the first frame 212 and the first middle plate 211. The material of the first frame 212 includes but is not limited to glass, plastic or ceramic.

[0070] The first back cover 213 is stacked on the side of the first middle plate 211 away from the support surface M1 of the first middle plate 211. The first back cover 213 is in the shape of a flat plate. The shape of the first back cover 213 can be adapted to the shape of the first middle plate 211. The first frame 212 is arranged around the edge of the first back cover 213. Exemplarily, the connection method between the first back cover 213 and the first frame 212 includes but is not limited to gluing. Please refer to Figure 5 A first accommodating cavity Q1 is formed between the first middle frame and the first back cover 213. The first accommodating cavity Q1 is used to accommodate internal components of the electronic device 100.

[0071] Please continue reading Figure 4 and Figure 5 The second shell 22 includes a second middle plate 221 and a second frame 222 .

[0072] The second middle plate 221 is in the shape of a flat plate. For example, the second middle plate 221 is in the shape of a rectangular flat plate or a rounded rectangular flat plate. Of course, in other examples, the second middle plate 221 can also be in the shape of a semicircular flat plate, a rhombus flat plate, an oblong flat plate, an elliptical or a special shape. One side surface of the second middle plate 221 in the thickness direction (i.e., the Z-axis direction) is formed as the above-mentioned support surface M2. The second middle plate 221 is stacked with the second part 12. The material of the second middle plate 221 includes but is not limited to glass, plastic or ceramic.

[0073] The second frame 222 is arranged around the edge of the second middle plate 221, and the second frame 222 is arranged around the edge of the second part 12. In some examples, the second frame 222 and the second middle plate 221 are integrally formed, which is conducive to improving the connection strength between the second frame 222 and the second middle plate 221, simplifying the processing technology, and reducing the assembly cost. In other examples, the second frame 222 and the second middle plate 221 can also be assembled and connected, and the assembly connection method includes but is not limited to gluing, welding, clamping or screw connection. This arrangement can simplify the mold structure of the second frame 222 and the second middle plate 221, and facilitate the independent processing and manufacturing of the second frame 222 and the second middle plate 221.

[0074] Screen 3 is used to display images, videos, text and other information. Figure 4 , and combined with Figure 5 , the screen 3 includes a display surface 3a and a non-display surface 3b which are arranged opposite to each other. The display surface 3a has a display interface. When a user uses the electronic device 100, the display surface 3a of the screen 3 faces the user to present information such as images, videos and text to the user. The screen 3 is fixed to the end of the second shell 22 that is away from the second part 12. Specifically, the screen 3 is stacked on the side of the second middle plate 221 away from the second part 12, and the non-display surface 3b of the screen 3 faces the second middle plate 221. The second frame 222 is arranged around the edge of the screen 3. For the foldable electronic device 100, the support surface M2 of the second middle plate 221 needs to support the second part 12 of the folding screen 1 to ensure the flatness of the folding screen 1. Based on this, please refer to Figure 5 The second housing Q2 is defined by the second housing 22 and the screen 3, and the second housing Q2 is used to contain the internal components of the electronic device 100.

[0075] For details, please refer to Figure 4 The screen 3 includes a transparent cover plate 31 and a display screen 32. The transparent cover plate 31 is in a flat plate shape. The material of the transparent cover plate 31 includes but is not limited to glass, plastic and ceramic. The transparent cover plate 31 is mainly used to protect the display screen 32 and prevent dust.

[0076] The display screen 32 is laminated and fixed on the side surface of the transparent cover plate 31 facing the second middle plate 221. The display surface 3a of the display screen 32 faces the transparent cover plate 31, so that the image, video and other information displayed on the display screen 32 can be observed by the user through the transparent cover plate 31. The connection method between the transparent cover plate 31 and the display screen 32 includes but is not limited to gluing. Among them, the side surface of the transparent cover plate 31 facing away from the display screen 32 is formed as the display surface 3a, and the side surface of the display screen 32 facing the second middle plate 221 is formed as the non-display surface 3b. The display screen 32 can be a flexible display screen or a rigid display screen.

[0077] Circuit board 4 is used to integrate the control chip. Figure 5 , the circuit board 4 can be fixed in the second accommodation cavity Q2, and fixed relative to the screen 3. Specifically, the circuit board 4 is fixed on the side surface of the second middle plate 221 facing the screen 3. Exemplarily, the circuit board 4 can be fixed on the side surface of the second middle plate 221 facing the screen 3 by means of threaded connection, clamping, welding, etc. In other examples, when there are multiple circuit boards 4, part of the circuit boards 4 are fixed in the first accommodation cavity Q1, and the other part of the circuit boards 4 are fixed in the second accommodation cavity Q2. It is sufficient to ensure that the circuit board 4 is fixed in the second accommodation cavity Q2 corresponding to the screen 3.

[0078] The control chip may be, for example, an application processor (AP), a double data rate synchronous dynamic random access memory (DDR), and a universal flash storage (UFS). In some embodiments, the circuit board 4 is electrically connected to the display screen 32, and the circuit board 4 is used to control the display screen 32 to display information such as images, videos, or text.

[0079] The circuit board 4 can be a hard circuit board, a flexible circuit board, or a hard-soft circuit board. The circuit board 4 can be a FR-4 dielectric board, a Rogers dielectric board, a mixed dielectric board of FR-4 and Rogers, etc. Here, FR-4 is a code for a flame retardant material grade, and the Rogers dielectric board is a high-frequency board.

[0080] The camera module 5 is used to take photos / videos. Figure 4 Combined with Figure 5The camera module 5 can be fixed in the second accommodating cavity Q2 and fixed relative to the screen 3; specifically, the camera module 5 is fixed on the surface of the second middle plate 221 facing the screen 3. Exemplarily, the camera module 5 can be fixed on the surface of the second middle plate 221 facing the screen 3 by means of thread connection, clamping, welding, etc. The screen 3 has a light-transmitting portion 33, and the light-entering end of the camera module 5 is opposite to the light-transmitting portion 33.

[0081] See also Figure 4 In some embodiments, a first avoidance gap 41 is provided on the circuit board 4, and the camera module 5 is located in the first avoidance gap 41. In this way, the compactness of the internal structure of the electronic device 100 can be ensured.

[0082] The camera module 5 is electrically connected to the circuit board 4. Exemplarily, the camera module 5 and the circuit board 4 can be electrically connected through a connection structure such as an FPC, a wire, or an enameled wire. The camera module 5 can convert the captured image into an electronic signal and transmit it to the processor on the circuit board 4 for analysis and processing. In addition, this can also enable the circuit board 4 to send a control command to the camera module 5 to adjust the working state of the camera, such as adjusting the focus, changing the exposure setting, etc.

[0083] The camera module 5 may be a camera module having at least one of the functions of adjusting the amount of light entering, automatic focusing (AF), and optical image stabilization (OIS). Exemplarily, the camera module 5 may be an automatic zoom camera module. The camera module 5 may also be a type of camera module that does not have the functions of adjusting the amount of light entering, automatic focusing (AF), and optical image stabilization (OIS). Exemplarily, the camera module 5 is a fixed-focus camera module, which includes but is not limited to a wide-angle camera module and a macro camera module. The camera module 5 may be a front camera or a rear camera. This embodiment is described by taking the camera module as a front camera as an example.

[0084] The electroacoustic device 6 is used to convert an electrical signal into a sound signal. For example, the electroacoustic device 6 can be applied to the electronic device 100 as a speaker module, also known as a "speaker", or applied to the electronic device 100 as an electroacoustic device such as a receiver.

[0085] See also Figure 4 Combined with Figure 5The electroacoustic device 6 can be accommodated in the second accommodation cavity Q2. The electroacoustic device 6 is fixed on the side surface of the second middle plate 221 facing the screen 3. Exemplarily, the electroacoustic device 6 can be fixed on the side surface of the second middle plate 221 facing the screen 3 by means of threaded connection, clamping, welding, etc.

[0086] Specifically, the second middle plate 221 has an electroacoustic device installation position 2211. The electroacoustic device installation position 2211 is located on one side of the camera module in the X-axis direction, and the electroacoustic device 6 is installed at the electroacoustic device installation position 2211 ( Figure 5 In this way, the electroacoustic device 6 and the camera module 5 are arranged side by side in the X-axis direction (ie, the first direction). In this way, the camera module 5 and the electroacoustic device 6 do not need to be stacked, which is conducive to achieving a thin and light electronic device 100.

[0087] See also Figure 4 In some embodiments, the electroacoustic device installation position 2211 is a fixed groove. In the thickness direction of the second middle plate 221, the fixed groove can be formed by the surface of the second middle plate 221 facing the screen 3 being recessed in the direction away from the screen 3, or can penetrate the second middle plate 221. In this way, part of the electroacoustic device 6 can be placed in the gap area between the second middle plate 221 and the folding screen 1 through the fixed groove. In this way, the space in the thickness direction of the electronic device 100 can be fully utilized, which is conducive to achieving the lightness and thinness of the electronic device 100.

[0088] See also Figure 4 In some embodiments, the circuit board 4 is provided with a second avoidance notch 42, and the electroacoustic device 6 is located in the second avoidance notch 42. In this way, the compactness of the internal structure of the electronic device 100 can be ensured. Exemplarily, the second avoidance notch 42 is connected to the first avoidance notch 41. It is understandable that in other embodiments, the second avoidance notch 42 is not connected to the first avoidance notch 41.

[0089] In some embodiments, the electroacoustic device 6 is electrically connected to the circuit board 4. Exemplarily, the electroacoustic device 6 and the circuit board 4 can be electrically connected through a connection structure such as an FPC, a wire, or an enameled wire. At this time, the audio electrical signal sent by the circuit board 4 is transmitted to the electroacoustic device 6, and is converted into a sound signal output by the electroacoustic device 6.

[0090] For details, please refer to Figure 6 , Figure 6 for Figure 4Schematic diagram of the assembly of the second housing 22, the electroacoustic device 6 and the camera module 5 in the electronic device 100. The electroacoustic device 6 has a sound hole 61. The sound signal output by the electroacoustic device 6 is output by the sound hole 61. The second frame 222 has a sound channel 224. The sound channel 224 connects the sound hole 61 and the external environment space of the second housing 22. In this way, the sound signal output by the sound hole 61 is output to the external environment space of the second housing 22 through the sound channel 224.

[0091] Specifically, the second frame 222 includes a first wall panel 223. The first wall panel 223 is an end wall panel of the second frame 222 in the Y-axis direction. In other embodiments, the first wall panel 223 can also be an end wall panel of the second frame 222 in the X-axis direction. In other examples, when the electroacoustic device 6 is disposed in the first shell 21, the first wall panel 223 can be an end wall panel of the first frame in the Y / X-axis direction, or can be the first back cover 213. In the following, the first wall panel 223 is taken as an example to be described as an end wall panel of the second frame 222 in the Y-axis direction.

[0092] The sound channel 224 is formed on the first wall plate 223. The sound channel 224 has a sound inlet 2241 located on the inner wall surface of the first wall plate 223 and facing the electro-acoustic device 6. The sound channel 224 is connected to the sound hole 61 through the sound inlet 2241 to connect the sound hole 61 of the electro-acoustic device 6 with the external environment space of the second shell 22.

[0093] The sound channel 224 includes a sound outlet hole 2242 and a sound transmission channel 2243 that are connected. The outer end opening of the sound outlet hole 2242 is located on the outer wall surface of the first wall plate 223. The sound transmission channel 2243 is located on a side of the sound outlet hole 2242 close to the inside of the second shell 22. Specifically, the sound outlet hole 2242 and the sound transmission channel 2243 are arranged and face each other in the Y-axis direction. The sound outlet hole 2242 is connected to the sound hole 61 through the sound transmission channel 2243.

[0094] In some embodiments, the sound outlet hole 2242 includes a plurality of sub-sound outlet holes 2242a. The plurality of sub-sound outlet holes 2242a are evenly spaced and distributed in the X-axis direction. In this embodiment, "plurality" means more than two. Specifically, the number of sub-sound outlet holes 2242a is determined according to actual needs, and this application does not limit this.

[0095] In this way, it is helpful to disperse and merge the sound, which is beneficial to improve the sound quality. Of course, the present application is not limited to this. In other embodiments, the sound outlet hole 2242 can also be a bar hole. The bar hole extends along the X-axis direction.

[0096] See also Figure 6In some embodiments, the camera module 5 is located at the center of the second middle plate 221 in the X direction. In this way, it is beneficial to set the light-transmitting portion 33 on the screen 3 in the center, provide the best visual effect for the user, and improve the user's experience. However, since the electro-acoustic device 6 and the camera module 5 are arranged side by side in the X-axis direction (that is, the first direction), the electro-acoustic device installation position 2211 is located on one side of the central axis O2 of the first wall plate 223 in the Y-axis direction. On this basis, in order to facilitate the transmission of sound, the sound outlet 2242, the sound transmission channel 2243 and the sound hole 61 of the electro-acoustic device 6 are arranged opposite each other in the Y-axis direction. That is, the central axis O1 of the sound outlet 2242, the central axis of the sound transmission channel 2243 and the central axis of the sound hole 61 all extend along the Y-axis direction and are collinear.

[0097] It is necessary to explain that when the sound hole 2242 includes a plurality of sub-sound holes 2242a, the central axis O1 of the sound hole 2242 refers to the symmetry line of the two sub-sound holes 2242a that are farthest apart in the X-axis direction.

[0098] The above structural layout will cause the central axis O1 of the sound hole 2242 to deviate from the central axis O2 of the first wall panel 223 in the Z-axis direction, which will affect the appearance of the electronic device 100 on the one hand, and on the other hand, when the user holds the electronic device 100 with his left and right hands interchangeably, the volume heard by the left and right ears will be more inconsistent, affecting the calling experience.

[0099] Therefore, in order to optimize the call experience, in other embodiments, please refer to Figure 7 , Figure 7 Schematic diagram of the assembly of the second shell 22 and the electroacoustic device 6 provided for other embodiments of the present application. The sound outlet 2242 is located in the middle area of ​​the first wall plate 223 in the X-axis direction, or the sound outlet 2242 is located in the middle area of ​​the first wall plate 223 close to the first wall plate in the X-axis direction. The electroacoustic device mounting position 2211 is located on one side of the central axis O1 of the sound outlet 2242 in the X-axis direction, that is, the electroacoustic device mounting position 2211 is located on one side of the central axis O1 of the sound outlet 2242 in the X-axis direction as a whole, or most of the electroacoustic device mounting position 2211 is located on one side of the central axis O1 of the sound outlet 2242 in the X-axis direction. It is sufficient to ensure that the center of the electroacoustic device mounting position 2211 is located on one side of the central axis O1 of the sound outlet 2242 in the X-axis direction. At this time, the sound outlet 2242 and the sound transmission channel 2243 are eccentrically arranged in the X-axis direction.

[0100] In this way, the central axis O1 of the sound outlet 2242 can be closer to the central axis O2 of the first wall plate 223 parallel to the X-axis direction, or the two can overlap. In this way, it is beneficial to improve the appearance of the electronic device 100, and it is beneficial for the sound to be emitted from the vicinity of the middle area of ​​the first wall plate 223, so that when the user holds the electronic device 100 with his left and right hands interchangeably, the problem of inconsistent volume heard by the left and right ears can be improved at least to a certain extent, thereby optimizing the call experience.

[0101] However, in the above-mentioned embodiment, during the transmission of sound from the sound hole 61 through the sound transmission channel 2243 to the sound outlet hole 2242, due to the eccentric setting of the sound outlet hole 2242 and the sound transmission channel 2243, a part of the sound outlet hole 2242 is not directly opposite to the sound transmission channel 2243 in the Y-axis direction. This results in a difference in volume between the part of the sound outlet hole 2242 that is not directly opposite to the sound transmission channel 2243 in the Y-axis direction and the part of the sound outlet hole 2242 that is directly opposite to the sound transmission channel 2243 in the Y-axis direction. That is, the distribution of sound at the sound outlet hole 2242 is uneven, so that when the user interchanges his left and right hands to hold the electronic device 100, the volume heard by the left and right ears is still inconsistent, and the audio playback effect of the electronic device 100 is still poor.

[0102] In order to solve the technical problem that the sound outlet 2242 and the sound transmission channel 2243 are eccentrically arranged in the X-axis direction, resulting in poor audio playback effect. Figure 8-Figure 10 ,in, Figure 8 Schematic diagram of the partial structure of the second shell 22 provided in some embodiments of the present application. Fig. 9 for Figure 8 A partial three-dimensional cross-sectional structural schematic diagram of the second shell 22 is shown. Fig.10 for Fig. 9 The enlarged view of the circled portion A of the second housing 22 is shown.

[0103] In some embodiments, the inner end opening 2242c of the sound outlet hole 2242 includes a first area, and the first area is an end area of ​​the inner end opening 2242c of the sound outlet hole 2242 along the X-axis direction close to the electroacoustic device installation position 2211. Specifically, along the X-axis direction, the inner end opening 2242c of the sound outlet hole 2242 has a first end 2242c1 and a second end 2242c2. In the Y-axis direction, the first end 2242c1 is opposite to a part of the electroacoustic device installation position 2211, and the second end 2242c2 is not opposite to the electroacoustic device installation position 2211. The first area is an area close to the first end 2242c1 and extending to the first end 2242c1.

[0104] The first area can be a partial area of ​​the inner end opening 2242c of the sound outlet hole 2242, or it can be the entire area of ​​the inner end opening 2242c of the sound outlet hole 2242. No specific limitation is made here. The present application only schematically gives an example of the first area being a partial area of ​​the inner end opening 2242c of the sound outlet hole 2242, which cannot be regarded as a special limitation on the present application. Among them, it is necessary to explain that when the sound outlet hole 2242 includes a plurality of sub-sound outlet holes 2242a, each sub-sound outlet hole 2242a has an inner opening, and the inner openings of the plurality of sub-sound outlet holes 2242a define the inner end opening 2242c.

[0105] One end of the sound transmission channel 2243 adjacent to the sound outlet hole 2242 is opened as a sound outlet port 2243a. At least a portion of the sound outlet port 2243a is opposite to and connected to the first area. That is, the entire sound outlet port 2243a may be opposite to and connected to the first area of ​​the sound outlet hole 2242, or a portion of the sound outlet port 2243a may be opposite to and connected to the first area of ​​the sound outlet hole 2242. The present application only schematically provides an example in which the entire sound outlet port 2243a is opposite to and connected to the first area of ​​the sound outlet hole 2242, which cannot be considered as a special limitation to the present application.

[0106] In the direction from the outer wall surface of the first wall plate 223 to the inner wall surface of the first wall plate 223 , the sound transmission channel 2243 extends obliquely toward the electroacoustic device installation position 2211 relative to the central axis O1 of the sound outlet hole 2242 .

[0107] Specifically, in the direction from the outer wall surface of the first wall plate 223 to the inner wall surface of the first wall plate 223 , the sound transmission channel 2243 extends obliquely toward the center of the electroacoustic device installation position 2211 relative to the central axis O1 of the sound outlet 2242 .

[0108] In this embodiment, since the sound transmission channel 2243 is designed to extend obliquely in the direction of the electroacoustic device installation position 2211 relative to the central axis O1 of the sound outlet hole 2242 in the Y-axis direction, at least a portion of the sound outlet port 2243a is directly opposite to and connected with the first area of ​​the sound outlet hole 2242. In this way, it is helpful to increase the area where the sound outlet port 2243a is directly opposite to the inner end opening 2242c of the sound outlet hole 2242, so that the diffusion of sound during propagation is enhanced, so that the distribution of sound at the sound outlet hole 2242 is more uniform, which is helpful to improve the sound transmission effect of the sound channel 244, and further to improve the audio playback effect of the electronic device 100.

[0109] Moreover, in this way, the sound-emitting airflow can be guided through the sound transmission channel 2243 to an area closer to the second end 2242c2 of the sound outlet 2242, thereby improving the balance of the sound emitted from different areas of the sound outlet 2242, and further improving the problem that when the user holds the electronic device 100 with his left and right hands, the volume heard by the left and right ears will be inconsistent. Figure 7 The loudness difference of the electronic device 100 of the sound channel 224 of the embodiment shown is 15.3 decibels when the left and right hands hold the electronic device 100 interchangeably. Figure 8 The loudness difference of the electronic device of the sound channel 224 of the illustrated embodiment when the electronic device 100 is held alternately in the left and right hands is 13.7 decibels.

[0110] In addition, the arrangement of the sound transmission channel 2243 extending obliquely toward the electro-acoustic device mounting position 2211 relative to the central axis O1 of the sound outlet 2242 can also help increase the length of the sound transmission channel 2243, thereby facilitating the dissipation of the energy of the sound-emitting airflow, reducing the flow rate of the sound-emitting airflow, reducing the noise caused by the airflow, and improving the sound quality.

[0111] See also Fig.10 In some embodiments, the second housing 22 includes a plastic portion 225 and a metal portion 226, and the plastic portion 225 is attached to the metal portion 226 to be integrally connected with the metal portion 226. In this way, it is convenient to attach the plastic portion 225 to the metal portion 226 through an injection molding process and to be integrally connected with the metal portion 226, which can simplify the processing technology and reduce the manufacturing cost.

[0112] Specifically, the sound transmission channel 2243 is formed on the plastic part 225. At least a portion of the sound outlet 2242 is located on the metal part 226. That is, the sound outlet 2242 may be partially molded on the metal part 226, or the sound outlet 2242 may be entirely molded on the metal part 226. The present application only schematically shows an example in which a portion of the sound outlet 2242 is molded on the metal part 226, which cannot be regarded as a special limitation on the present application. It should be noted that when a portion of the sound outlet 2242 is molded on the metal part 226, the sound outlet 2242 except the portion located on the metal part 226 is molded on the plastic part 225.

[0113] In this way, on the one hand, the cost of raw materials for making the second frame 222 can be reduced. On the other hand, since the sound transmission channel 2243 is located on the side of the sound outlet 2242 close to the inside of the second shell 22, the plastic part 225 is also located on the side of the metal part 226 close to the inside of the second shell 22. Therefore, the external opening of the sound outlet 2242 is located on the metal part 226. In this way, the damage resistance and durability of the sound outlet 2242 can be improved. On the other hand, since the sound transmission channel 2243 is molded on the plastic part 225, the sound airflow first flows through the plastic part 225 and then flows through the metal part 226. In this way, the sound waves can be better absorbed with the help of the plastic part 225, which is conducive to reducing echoes and noise.

[0114] Of course, the present application is not limited thereto. In other embodiments, the housing may also include only the metal portion 226 without including the plastic portion 225. In this case, the sound outlet 2242 and the sound transmission channel 2243 are both formed on the metal portion 226.

[0115] See also Fig.10 In some embodiments, the sound channel 224 further includes a sound guide cavity 2245. The sound guide cavity 2245 is located between the sound transmission channel 2243 and the sound outlet hole 2242, and connects the sound transmission channel 2243 and the sound outlet hole 2242. Specifically, the sound guide cavity 2245 includes a first cavity portion 2245a and a second cavity portion 2245b arranged and connected in the X-axis direction. The first cavity portion 2245a, the sound outlet port 2243a and the first area are directly opposite in the Y-axis direction. The second cavity portion 2245b is directly opposite to the second area of ​​the inner end port of the sound outlet hole 2242 in the Y-axis direction, and the second cavity portion 2245b is staggered with the sound outlet port 2243a in the Y-axis direction. Among them, the second area refers to the remaining area of ​​the inner end opening 2242c of the sound hole 2242 except the first area.

[0116] In this way, the sound-emitting airflow in the sound transmission channel 2243 can be guided to the end area of ​​the sound hole 2242 close to the second end 2242c2 through the sound guide cavity 2245, so that the sound is more evenly distributed in the sound hole 2242, thereby improving the audio playback effect.

[0117] In some embodiments, the sound guide cavity 2245 is formed on the plastic part 225. This helps to increase the length of the sound channel 224 on the plastic part 225, so that the plastic part 225 can better absorb sound waves, which helps to reduce echoes and noise. In other embodiments, when the second housing 22 does not include the plastic part 225, the sound guide cavity 2245 is formed on the metal part 226.

[0118] See also Fig.10In some embodiments, the cross-sectional area of ​​the sound transmission channel 2243 gradually increases from the outside of the second housing 22 to the inside of the second housing 22. In this way, when the plastic part 225 is molded by injection molding, demolding can be facilitated.

[0119] See also Fig.10 In some embodiments, the sound channel 224 further includes a connecting channel 2244, which is located at one end of the sound channel 2243 away from the sound outlet 2242 and is connected to the sound channel 2243. The connecting channel 2244 has a sound inlet 2241 located on the inner wall surface of the first wall plate 223. The cross-sectional area of ​​the opening at one end of the connecting channel 2244 close to the sound outlet 2242 is greater than the cross-sectional area of ​​the sound channel 2243. Specifically, in the direction from the outer wall surface of the first wall plate 223 to the inner wall surface of the first wall plate 223, the connecting channel 2244 extends obliquely toward the direction away from the central axis O1 of the sound outlet 2242, and the cross-sectional area of ​​the connecting channel 2244 gradually increases.

[0120] In this way, when the plastic part 225 is molded by the injection molding process, it is easier to separate the injection mold from the sound channel 2243 and the connecting channel 2244. It is understandable that in other embodiments, the sound channel 224 may not include the connecting channel 2244, and in this case, the sound channel 2243 has a sound inlet 2241. In this way, the structure of the sound channel 224 is simple and easy to mold.

[0121] See also Fig. 9 In some embodiments, the second middle plate 221 is provided with a first protrusion 2211 and a second protrusion 2212 in the area on opposite sides of the sound inlet 2241 in the X-axis direction. In the X-axis direction, the second protrusion 2212 is arranged relative to the first protrusion 2211 away from the central axis O1 of the sound outlet 2242. The first protrusion 2211 and the second protrusion 2212 are both connected to the first wall plate 223. The electroacoustic device mounting position 2211 is located between the first protrusion 2211 and the second protrusion 2212. In this way, the structural strength of the second middle plate 221 can be increased, and it can also serve as the installation basis for other electronic components. And because the electroacoustic device mounting position 2211 is located between the first protrusion 2211 and the second protrusion 2212, when the electroacoustic device 6 is installed, the first protrusion 2211 and the second protrusion 2212 can play a role in installing and positioning the electroacoustic device 6.

[0122] Exemplarily, the first protrusion 2211 is used to form a part of the mounting position of the camera module. The area between the first protrusion 2211 and the second protrusion 2212 on the second middle plate 221 forms the above-mentioned electroacoustic device mounting position 2211.

[0123] On the basis of the above embodiment, in the direction from the outer wall surface of the first wall plate 223 to the inner wall surface of the first wall plate 223, the portion of the second protrusion 2212 adjacent to the sound inlet 2241 extends obliquely in a direction away from the first protrusion 2211. In this way, when the plastic part 225 is molded by the injection molding process, an escape area can be provided for the injection mold to facilitate the separation of the injection mold from the sound transmission channel 2243.

[0124] In some embodiments, the electronic device 100 further includes a dustproof net (not shown). The dustproof net is fixed to the inner wall surface of the first wall plate 223 and is arranged between the sound inlet 2241 and the sound emitting hole 61 ( Figure 8 In this way, dust can be prevented from entering the interior of the electro-acoustic device 6 from the sound channel 224 and affecting the performance of the electro-acoustic device 6.

[0125] To facilitate the installation of the dust screen, please refer to Figure 8 The inner wall surface of the first wall plate 223 has a mounting groove 2231, and the sound inlet 2241 is located on the groove bottom wall N1 of the mounting groove 2231. The dustproof net is fixedly connected in the mounting groove 2231. In this way, the dustproof net can be positioned for installation, thereby improving the installation accuracy and efficiency of the dustproof net.

[0126] In some embodiments, the bottom wall N1 of the installation groove 2231 is tilted relative to the second middle plate 221. In this way, the dust screen can be tilted to fit the electroacoustic device 6 with the wall surface where the sound hole 61 is located.

[0127] See also Fig.10 In some embodiments, the plurality of sub-sound holes 2242a of the sound hole 2242 include a first sub-sound hole 2242a1; the first sub-sound hole 2242a1 is directly opposite to a side wall of the sound transmission channel 2243 in the Y-axis direction. Specifically, in the X-axis direction, the sound transmission channel 2243 has a first side wall surface 2243b and a second side wall surface 2243c opposite to each other, and the first side wall surface 2243b is located on a side of the second side wall surface 2243c close to the central axis O1 of the sound hole 2242; in the Y-axis direction, the first sub-sound hole 2242a1 is directly opposite to the first side wall surface 2243b.

[0128] See also Fig.11 , Fig.11 Schematic diagram of the partial structure of the second housing 22. Fig.11The current perspective shown is the outer wall surface of the first wall plate 223. A sound guide groove 2242a2 is formed on the inner peripheral wall of the first sub-sound outlet hole 2242a1, and the sound guide groove 2242a2 is connected to the inner opening of the first sub-sound outlet hole 2242a1; and in the X-axis direction, the sound guide groove 2242a2 is located on the side of the central axis O3 of the first sub-sound outlet hole 2242a1 close to the second side wall surface 2243c.

[0129] In this way, the area of ​​the opening in the first sub-sound hole 2242a1 facing the sound channel 2243 can be increased, which is conducive to allowing more sound airflow to enter the first sub-sound hole 2242a1 and improving the loudness of the sound transmitted by the first sub-sound hole 2242a1.

[0130] Exemplarily, the plurality of sub-sound holes 2242a include a second sub-sound hole. The second sub-sound hole has the same structure as the first sub-sound hole 2242a1. The second sub-sound hole is adjacent to the first sub-sound hole 2242a1. Alternatively, in the X-axis direction, the second sub-sound hole is located on a side of the first sub-sound hole 2242a1 away from the second side wall surface 2243c.

[0131] Of course, the present application is not limited thereto. In other embodiments, each sub-sound hole 2242a may be provided with a sound guide groove 2242a2. Specifically, the number of sub-sound holes 2242a provided with guide grooves is determined according to actual needs, and the present application does not limit this.

[0132] Exemplarily, the sound guide groove 2242a2 can be formed by a hole cutter or a dovetail cutter.

[0133] In some embodiments, part of the sound guide groove 2242a2 is formed on the plastic part 225. In this way, the difficulty of forming the sound guide groove 2242a2 by a hole-turning knife or a dovetail knife can be reduced, and the molding efficiency of the sound guide groove 2242a2 can be improved.

[0134] In some embodiments, in the direction from the outer wall surface of the first wall plate 223 to the inner wall surface of the first wall plate 223, the groove bottom wall N2 of the sound guide groove 2242a2 extends obliquely in a direction away from the central axis O3 of the first sub-sound outlet hole 2242a1. Exemplarily, the extending direction of the groove bottom wall N2 of the sound guide groove 2242a2 is the same as the extending direction of the sound transmission channel 2243.

[0135] In this way, the sound-emitting airflow can be guided by the sound-guiding groove 2242a2, so that the sound-emitting airflow can enter the first sub-sound-emitting hole 2242a1 more smoothly, thereby reducing the noise caused by the sound-emitting airflow hitting the wall and improving the sound quality.

[0136] In some embodiments, the distance L1 between one end of the sound guide groove 2242a2 close to the outer wall surface of the first wall plate 223 and the outer wall surface of the first wall plate 223 in the Y-axis direction is greater than or equal to 0.2 mm. For example, L1 can be 0.21 mm, 0.23 mm, 0.26 mm or 0.3 mm. In this way, the outer wall surface of the first wall plate 223 can be prevented from being damaged when the sound guide groove 2242a2 is formed.

[0137] Based on any of the above embodiments, please refer to Fig.12 , Fig.12 A schematic diagram of the structure of the second shell 22 provided for some other embodiments of the present application. The sound hole 2242 is located in the middle area of ​​the first wall plate 223 in the X-axis direction. In this way, the situation in which the volume heard by the left and right ears is inconsistent when the user holds the electronic device 100 with his left and right hands can be improved to the greatest extent. On the other hand, the best visual effect can be provided to the user. Of course, the present application is not limited to this. In other embodiments, the sound hole 2242 may not be located in the middle area of ​​the first wall plate 223 in the X-axis direction.

[0138] See also Fig.13 , Fig.13 According to Figure 7 and Figure 8 The schematic diagram of the comparison of the simulation effect of the sound outlet airflow velocity of the sound channel 224 of the embodiment shown. Fig.13 Part (a) of Figure 7 A schematic diagram of the sound outlet airflow velocity of the sound channel 224 of the illustrated embodiment; Fig.13 Part (b) of Figure 8 A schematic diagram of the sound outlet air flow rate of the sound channel 224 of the illustrated embodiment.

[0139] Fig.13 The maximum sound outlet air flow velocity near the sound outlet hole 2242 shown in part (a) is 45.442 m / s. Fig.13 The maximum sound outlet airflow velocity near the sound outlet hole 2242 shown in part (b) is 42.6582 m / s. Figure 8 The structure of the sound channel 224 of the illustrated embodiment can effectively reduce the velocity of the sound-emitting airflow, thereby reducing the noise caused by the airflow and improving the sound quality.

[0140] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A housing, characterized in that: The shell has an electroacoustic device installation position inside, and the electroacoustic device installation position is used to install the electroacoustic device; the shell includes a first wall plate, and the first wall plate has a sound channel, and the sound channel connects the sound hole of the electroacoustic device and the external environment space of the shell; The sound channel includes a sound outlet hole and a sound transmission channel connected to each other, wherein the sound outlet hole and the sound transmission channel are arranged in a direction from the outside of the shell to the inside of the shell; the outer end opening of the sound outlet hole is located on the outer wall surface of the first wall plate; The electroacoustic device installation position is located on one side of the central axis of the sound outlet hole in a first direction, and the first direction is perpendicular to the central axis of the sound outlet hole; An end area of ​​the inner end opening of the sound outlet hole along the first direction close to the installation position of the electroacoustic device is the first area; One end of the sound transmission channel adjacent to the sound outlet is a sound outlet port, and at least a portion of the sound outlet port is opposite to and connected to the first area; in the direction from the outer wall surface of the first wall panel to the inner wall surface of the first wall panel, the sound transmission channel extends obliquely relative to the central axis of the sound outlet toward the direction of the electroacoustic device installation position.

2. The housing according to claim 1, characterized in that The shell includes a plastic part and a metal part, and the plastic part is attached to the metal part to be connected with the metal part as a whole; At least a portion of the sound outlet is located on the metal part, and the sound transmission channel is formed on the plastic part.

3. The housing according to claim 1 or 2, characterized in that: The cross-sectional area of ​​the sound transmission channel gradually increases in a direction from the outer side of the housing to the inner side of the housing.

4. The housing according to any one of claims 1 to 3, characterized in that: The sound channel further comprises a communication channel, the communication channel is located at one end of the sound transmission channel away from the sound outlet and is communicated with the sound transmission channel, and the communication channel has a sound inlet located on the inner wall surface of the first wall plate; The cross-sectional area of ​​the communication channel is larger than the cross-sectional area of ​​the sound transmission channel; In the direction from the outer wall surface of the first wall plate to the inner wall surface of the first wall plate, the communication channel extends obliquely in a direction away from the central axis of the sound outlet, and the cross-sectional area of ​​the communication channel gradually increases.

5. The housing according to any one of claims 1 to 3, characterized in that: The sound transmission channel has a sound inlet located on the inner wall surface of the first wall panel.

6. The housing according to any one of claims 1 to 5, characterized in that: The sound channel has a sound inlet located on the inner wall surface of the first wall panel; The inner wall surface of the first wall plate is provided with a mounting groove, and the sound inlet is located on the bottom wall of the mounting groove.

7. The housing according to any one of claims 1 to 6, characterized in that: The housing comprises a frame and a middle plate, the frame is arranged around the middle plate, and the frame has the first wall plate; the sound channel has a sound inlet located on the inner wall surface of the first wall plate; The middle plate has the electroacoustic device installation position, and the electroacoustic device installation position is located on the side toward which the sound inlet faces; The middle plate is provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion are located on opposite sides of the sound inlet in a first direction, the first protrusion and the second protrusion are both connected to the first wall panel, and the electroacoustic device installation position is located between the first protrusion and the second protrusion.

8. The housing according to claim 7, characterized in that In the first direction, the second protrusion is arranged away from the central axis of the sound outlet relative to the first protrusion. In a direction from the outer wall surface of the first wall plate to the inner wall surface of the first wall plate, a portion of the second protrusion adjacent to the sound inlet extends obliquely in a direction away from the first protrusion.

9. The housing according to any one of claims 1 to 8, characterized in that: The sound outlet is located in a middle area of ​​the first wall plate in the first direction.

10. The housing according to any one of claims 1 to 9, characterized in that: The sound outlet hole includes a plurality of sub-sound outlet holes, which are evenly spaced and distributed in a first direction, each of the sub-sound outlet holes has an inner opening, and the inner openings of the plurality of sub-sound outlet holes define the inner end opening.

11. The housing according to claim 10, characterized in that The sound channel further includes a sound guide cavity, which is located between the sound transmission channel and the sound outlet hole and connects the sound transmission channel and the sound outlet hole, and the remaining area of ​​the inner end opening of the sound outlet hole except the first area is a second area; The sound guide cavity comprises a first cavity portion and a second cavity portion arranged in a first direction and connected to each other, wherein the first cavity portion, the sound outlet port, and the first area are directly opposite to each other in the extension direction of the central axis of the sound outlet hole; The second cavity portion and the second area are directly opposite to each other in the extension direction of the central axis of the sound outlet hole, and the second cavity portion and the sound outlet port are staggered in the extension direction of the central axis of the sound outlet hole.

12. The housing according to claim 11, characterized in that The plurality of sub-sound outlets include a first sub-sound outlet; In a first direction, the sound transmission channel has a first side wall surface and a second side wall surface opposite to each other, and the first side wall surface is located on a side of the second side wall surface close to the central axis of the sound outlet hole; In the extension direction of the central axis of the sound outlet hole, the sub-sound outlet hole directly facing the first side wall surface is the first sub-sound outlet hole; A sound guide groove is formed on the inner peripheral wall of the first sub-sound outlet hole, and the sound guide groove is communicated with the inner opening of the first sub-sound outlet hole; In the first direction, the sound guide groove is located on a side of the central axis of the first sub-sound outlet hole close to the second side wall surface.

13. The housing according to claim 12, characterized in that In a direction from the outer wall surface of the first wall plate to the inner wall surface of the first wall plate, the bottom wall of the sound guide groove extends obliquely in a direction away from the central axis of the first sub-sound outlet hole.

14. An electronic device, characterized in that: include: The housing according to any one of claims 1 to 13; An electroacoustic device is installed on the electroacoustic device installation position.

15. The electronic device according to claim 14, characterized in that: The electronic device further comprises a screen and a camera module; the screen has a light-transmitting portion; The housing comprises a frame and a middle plate, the middle plate and the screen are stacked, the frame is arranged around the middle plate and the screen, the frame has the first wall plate; the middle plate has the electroacoustic device installation position; The camera module is installed on the middle plate, and the light incident end of the camera module is directly opposite to the light-transmitting portion; The camera module and the sound outlet hole are arranged in an extension direction of a central axis of the sound outlet hole, and the electroacoustic device is located on one side of the camera module in a first direction.

16. The electronic device according to claim 14 or 15, characterized in that: It also includes a dustproof net, which is fixed to the inner wall surface of the first wall panel and is arranged between the sound inlet of the sound channel and the sound emitting hole.

17. The electronic device according to claim 16, characterized in that: The shell is the shell according to claim 7; the dustproof net is fixedly connected in the installation groove.

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