Electronic device

Abstract

The utility model provides electronic equipment, and relates to the technical field of electronics. The electronic device comprises: a housing having a pressure relief hole; the sound production module is arranged in the shell; the sound production module is provided with a damping hole; the pressure relief assembly is arranged in the shell, the pressure relief assembly comprises a pressure relief pipe and a waterproof breathable film, one end of the pressure relief pipe is communicated with the pressure relief hole, the other end of the pressure relief pipe is communicated with the damping hole, and the waterproof breathable film blocks one end of the pressure relief pipe; the elastic film is arranged in the shell, a closed cavity is defined by the elastic film and the shell, and the closed cavity is filled with gas. The sound quality of the electronic equipment can be improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electronics, and in particular, to an electronic device. BACKGROUND

[0002] At present, with the increasing demand for waterproof performance of handheld electronic products (such as smart phones, wearable devices, etc.), the waterproof performance of the waterproof and breathable film needs to be improved as a common waterproof means in handheld electronic products. However, the higher the waterproof performance of the waterproof and breathable film, the lower the air permeability, which affects the sound quality of the electronic product.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL

[0004] The present disclosure provides an electronic device capable of improving the sound quality of the electronic device.

[0005] The present disclosure provides an electronic device, comprising:

[0006] A shell having a pressure relief hole;

[0007] A sound generating module arranged in the shell; the sound generating module has a damping hole;

[0008] A pressure relief assembly arranged in the shell, the pressure relief assembly comprising a pressure relief pipe and a waterproof and breathable film, one end of the pressure relief pipe being in communication with the pressure relief hole, the other end of the pressure relief pipe being in communication with the damping hole, and the waterproof and breathable film being sealed at one end of the pressure relief pipe;

[0009] An elastic film arranged in the shell and surrounding a sealed cavity with the shell, the sealed cavity being filled with gas.

[0010] In an embodiment of the present disclosure, the shell comprises a middle frame and a back shell; the middle frame comprises a middle plate and a frame surrounding the middle plate, and the back shell is located on one side of the middle plate and connected with the frame;

[0011] The middle plate has a retaining wall, the elastic film covers the retaining wall, and the sealed cavity is surrounded by the middle plate, the retaining wall and the elastic film.

[0012] In an embodiment of the present disclosure, the retaining wall is an elastic structure.

[0013] In an embodiment of the present disclosure, the shell comprises a middle frame and a back shell; the middle frame comprises a middle plate and a frame surrounding the middle plate, and the back shell is located on one side of the middle plate and connected with the frame;

[0014] The middle plate comprises a connected flat portion and a recessed portion, the recessed portion is recessed towards the back shell; the elastic membrane covers the recessed portion.

[0015] In one embodiment of the present disclosure, the middle plate further comprises a connected flat portion and a recessed portion; the recessed portion is recessed towards the back shell, the baffle is arranged around the recessed portion and is arranged on the flat portion, and the elastic membrane covers the baffle.

[0016] The closed cavity is surrounded by the recessed portion, the baffle and the elastic membrane.

[0017] In one embodiment of the present disclosure, the number of the elastic membranes is multiple, and the multiple elastic membranes form multiple closed cavities with the shell.

[0018] In one embodiment of the present disclosure, the waterproof and breathable membrane is arranged in the shell and seals the pressure relief hole.

[0019] One end of the pressure relief pipe is connected with the pressure relief hole and is sealed by the waterproof and breathable membrane, and the other end is connected with the damping hole.

[0020] In one embodiment of the present disclosure, one end of the pressure relief pipe is connected with the pressure relief hole, and the other end is connected with the waterproof and breathable membrane, and the damping hole is in communication with the inner cavity of the shell.

[0021] In one embodiment of the present disclosure, buffer particles are arranged in the closed cavity, and the buffer particles are of a porous structure.

[0022] In one embodiment of the present disclosure, the height of the closed cavity is 1.66mm-3.33mm.

[0023] The electronic device of the present disclosure is filled with gas in the closed cavity, when the air pressure in the shell instantaneously rises, the elastic membrane is pressed, the air pressure in the shell is buffered through the vibration of the elastic membrane, which is beneficial to reduce the possibility that the sound production module produces noise due to the instantaneous rise of the air pressure in the inner cavity of the shell, and the equalization tuning of the noise of the electronic device is not needed, which is convenient for improving the sound quality of the electronic device.

[0024] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, further serve to explain the principles of the present disclosure. It is to be understood that the drawings are only schematic, and that they do not necessarily represent a limiting case of the application. In the drawings:

[0026] Figure 1 A schematic view of an electronic device in an embodiment of the present disclosure.

[0027] Figure 2 A schematic view of a housing in an embodiment of the present disclosure.

[0028] Figure 3 A schematic view of an electronic device in an embodiment of the present disclosure.

[0029] Figure 4 A schematic view of an electronic device in an embodiment of the present disclosure.

[0030] Figure 5 A schematic view of an electronic device in an embodiment of the present disclosure.

[0031] Figure 6 A schematic view of an electronic device in an embodiment of the present disclosure.

[0032] Figure 7 A schematic view of an electronic device in an embodiment of the present disclosure.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 1, housing; 11, middle plate; 111, retaining wall; 112, flat portion; 113, recessed portion; 12, rear housing; 2, sound production module; 21, damping hole; 3, pressure relief assembly; 31, pressure relief pipe; 32, waterproof and breathable film; 4, elastic film; 5, sealed cavity. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the description of the figures and the figures are not necessarily drawn to scale.

[0036] The terms "one", "a", "an", "the", and "at least one" are used to indicate that "one or more" of the identified element / s, component / s, etc. is / are present; the terms "includes", "including", and "has" are used inclusively to mean that something is present, can be present, and / or includes additional items not listed; and the use of "first", "second", and "third" etc. are merely labels used to distinguish one element from another, and are not intended to imply a limitation on the number of such elements present.

[0037] The "height" of the feature A herein refers to the dimension of the feature A along the direction perpendicular to the plane where the middle plate is located, i.e. the thickness of the feature A. For example, the height of the shell refers to the dimension of the shell along the direction perpendicular to the plane where the middle plate is located. For another example, the height of the sealed cavity refers to the dimension of the sealed cavity along the direction perpendicular to the plane where the middle plate is located.

[0038] The electronic device can be a mobile phone, a tablet computer, a wearable sports watch, a wearable sports bracelet, etc.

[0039] Referring to Figure 1 The electronic device includes a shell 1, a sound emitting module 2, and a pressure relief assembly 3. The shell 1 is provided with a pressure relief hole. When the air pressure inside and outside the shell 1 is unbalanced, the air in the shell 1 can be discharged from the pressure relief hole to balance the air pressure inside and outside the shell 1. The sound emitting module 2 is arranged in the inner cavity of the shell 1 and is used to emit sound, for example, the sound emitting module 2 can be a loudspeaker. The sound emitting module 2 is provided with a damping hole 21 to balance the air pressure difference between the inside and outside of the sound emitting module 2. The pressure relief assembly 3 is arranged in the shell 1. The pressure relief assembly 3 includes a pressure relief pipe 31 and a waterproof and breathable film 32. One end of the pressure relief pipe 31 is connected with the pressure relief hole, and the other end is communicated with the inner cavity of the shell 1. The pressure relief hole, the inner cavity of the pressure relief pipe 31, the inner cavity of the shell 1, and the damping hole 21 are communicated in sequence. The waterproof and breathable film 32 is sealed at one end of the pressure relief pipe 31 to prevent water outside the shell 1 from entering the inside of the shell 1 through the pressure relief hole, thereby prolonging the service life of the components inside the shell 1. The material of the waterproof and breathable film 32 can be expanded polytetrafluoroethylene (ePTFE) to realize the waterproof and breathable function.

[0040] In this way, on the one hand, when the air pressure inside and outside the sound emitting module 2 is unbalanced, the gas in the sound emitting module 2 can be sequentially discharged from the pressure relief hole outside the shell 1 through the damping hole 21, the inner cavity of the shell 1, the waterproof and breathable film 32, and the inner cavity of the pressure relief pipe 31 to balance the air pressure inside and outside the sound emitting module 2, thereby improving the sound quality of the sound emitting module 2. On the other hand, due to the arrangement of the waterproof and breathable film 32, the water outside the shell 1 is difficult to enter the inside of the shell 1 through the waterproof and breathable film 32, thereby prolonging the service life of the components inside the shell 1.

[0041] Currently, users have higher requirements for the waterproof performance of electronic devices. For the waterproof and breathable film 32, the higher the waterproof performance, the lower the air permeability, thereby increasing the air tightness inside the shell 1. However, when the air pressure inside the shell 1 instantaneously increases (for example, when the user presses the rear cover of the electronic device or folds the flexible screen), the diaphragm in the sound production module 2 collides with the sound production module 2, which causes the sound production module 2 to produce noise when the electronic device plays music, thereby affecting the sound quality of the electronic device.

[0042] To solve the above problems, refer to Figure 1 In an embodiment of the present disclosure, the electronic device includes a shell 1, a sound production module 2, a pressure relief assembly 3, and an elastic film 4. The shell 1 is provided with a pressure relief hole. The sound production module 2 is arranged in the inner cavity of the shell 1 and is used to produce sound. The sound production module 2 is provided with a damping hole 21 to balance the air pressure difference between the inside and outside of the sound production module 2. The pressure relief assembly 3 is arranged in the shell 1 and includes a pressure relief pipe 31 and a waterproof and breathable film 32. One end of the pressure relief pipe 31 communicates with the pressure relief hole, and the other end communicates with the damping hole 21. The waterproof and breathable film 32 is sealed at one end of the pressure relief pipe 31. The elastic film 4 is arranged in the shell 1 and forms a sealed cavity 5 with the shell 1. The sealed cavity 5 is filled with gas. The elastic film 4 can be attached to the shell 1 by adhesive.

[0043] In this way, the sealed cavity 5 is filled with gas. When the air pressure inside the shell 1 instantaneously increases, the elastic film 4 is pressed, and the vibration of the elastic film 4 buffers the air pressure inside the shell 1, thereby reducing the possibility of noise produced by the sound production module 2 due to the instantaneous increase in the pressure of the inner cavity of the shell 1. Without equalizing the noise of the electronic device, the sound quality of the electronic device can be improved.

[0044] In an embodiment of the present disclosure, refer to Figure 1 and Figure 2 The shell 1 includes a middle frame and a rear shell 12. The middle frame includes a middle plate 11 and a frame (not shown in the drawings of the present disclosure) surrounding the middle plate 11. The rear shell 12 is located on one side of the middle plate 11 and is connected with the frame. The middle plate 11 has a retaining wall 111, and the elastic film 4 is covered on the retaining wall 111. The sealed cavity 5 is surrounded by the middle plate 11, the retaining wall 111, and the elastic film 4. In this way, the elastic film 4 is arranged on the retaining wall 111. Since the retaining wall 111 has a stable structure, it can provide support for the elastic film 4 to increase the volume of the sealed cavity 5, thereby buffering higher pressure in the inner cavity of the shell 1.

[0045] In an embodiment of the present disclosure, refer to Figure 3The retaining wall 111 is of an elastic structure. For example, the material of the retaining wall 111 can be the same as that of the elastic film 4, so that the retaining wall 111 and the elastic film 4 are of an integrated structure. By increasing the area of the elastic film 4, the transient high pressure in the inner cavity of the shell 1 can be further buffered, so as to further reduce the noise interference of the electronic device. For another example, the material of the retaining wall 111 can be different from that of the elastic film 4.

[0046] In an embodiment of the present disclosure, the material of the elastic film 4 can be polyvinyl chloride.

[0047] In an embodiment of the present disclosure, the shape of the closed cavity 5 can be cylindrical, cubic, spherical, ellipsoidal or other irregular geometric shapes, which is set according to specific needs and is not limited herein.

[0048] In an embodiment of the present disclosure, referring to Figure 4 The shell 1 comprises a middle frame and a rear shell 12. The middle frame comprises a middle plate 11 and a frame surrounding the middle plate 11, and the rear shell 12 is located on one side of the middle plate 11 and connected with the frame. The middle plate 11 comprises a flat portion 112 and a recessed portion 113 connected with each other, and the recessed portion 113 is recessed towards the rear shell 12. The elastic film 4 covers the recessed portion 113. In this way, the closed cavity 5 is formed by the recessed portion 113 and the elastic film 4, so as to buffer the high pressure in the inner cavity of the shell 1 by the vibration of the soft film when the transient high pressure is generated in the inner cavity of the shell 1.

[0049] In an embodiment of the present disclosure, the cross-sectional shape of the recessed portion 113 can be cylindrical, quadrangular, semicircular, circular or other irregular geometric shapes.

[0050] In an embodiment of the present disclosure, referring to Figure 5 The middle plate 11 further comprises the flat portion 112 and the recessed portion 113 connected with each other. The recessed portion 113 is recessed towards the rear shell 12, the retaining wall 111 is arranged around the recessed portion 113 and located on the flat portion 112, and the elastic film 4 covers the retaining wall 111. The closed cavity 5 is surrounded by the recessed portion 113, the retaining wall 111 and the elastic film 4. In this way, the closed cavity 5 is formed by the recessed portion 113, the retaining wall 111 and the elastic film 4. Since the recessed portion 113 is recessed towards the rear shell 12, the volume of the closed cavity 5 is increased, so as to relieve the higher transient air pressure in the inner cavity of the shell 1.

[0051] In an embodiment of the present disclosure, referring to Figure 6 The number of the elastic films 4 is multiple, and the multiple elastic films 4 form multiple closed cavities 5 with the shell 1. The number of the closed cavities 5 can be two, three, four or the like. In this way, the multiple elastic films 4 form the multiple closed cavities 5 with the shell 1, so as to better buffer the transient high pressure in the inner cavity of the shell 1.

[0052] In an embodiment of the present disclosure, referring toFigure 7 The waterproof and breathable membrane 32 is arranged in the shell 1 and seals the pressure relief hole. One end of the pressure relief pipe 31 is connected with the pressure relief hole and is sealed by the waterproof and breathable membrane 32, and the other end is connected with the damping hole 21. In this way, the damping hole 21 is directly communicated with the pressure relief hole through the pressure relief pipe 31, and when the inner cavity of the shell 1 generates transient high pressure, since the inner cavity of the shell 1 is not communicated with the damping hole 21, the possibility that the transient high pressure of the inner cavity of the shell 1 affects the sound emitted by the sound emitting module 2 is reduced, the probability of the generation of noise when the electronic device plays music is reduced, and the sound quality of the electronic device is improved.

[0053] In an embodiment of the present disclosure, referring to Figure 1 One end of the pressure relief pipe 31 is connected with the pressure relief hole, the other end is connected with the waterproof and breathable membrane 32, and the damping hole 21 is communicated with the inner cavity of the shell 1. In this way, the air pressure in the inner cavity of the shell 1 is balanced through the pressure relief hole, so as to facilitate the normal work of the electronic device.

[0054] In an embodiment of the present disclosure, the closed cavity 5 is provided with buffer particles for relieving the air pressure of the closed cavity 5. The buffer particles are of a porous structure, and when the elastic membrane 4 is extruded due to the transient high pressure inside the shell 1, the buffer particles can buffer the change of the air pressure in the closed cavity 5, so as to improve the pressure resistance of the closed cavity 5 and facilitate the buffering of higher transient air pressure inside the shell 1. For example, the buffer particles can be BASS powder, and the BASS powder can be carbon nanotube material, etc.

[0055] In an embodiment of the present disclosure, the height of the closed cavity 5 is 1.66mm-3.33mm. For example, the height of the closed cavity 5 can be 1.66mm, 2.12mm, 3.00mm, 3.33mm, etc. In this way, by limiting the height of the closed cavity 5 within 1.66mm-3.33mm, on the one hand, a relatively reasonable volume of the closed cavity 5 can be provided, avoiding the case that the volume of the closed cavity 5 is too small to buffer the transient high pressure in the inner cavity of the shell 1, and on the other hand, the case that the volume of the closed cavity 5 is too large to occupy too much space of the shell 1 is prevented, which is beneficial to the light and thin of the electronic device.

[0056] Table 1 is the average pressure resistance flow corresponding to the closed cavity 5 with different volumes in an embodiment of the present disclosure. The area of the elastic membrane 4 is 750mm 2 . Referring to Table 1, when the volume of the closed cavity 5 is increased, the average pressure resistance flow of the elastic membrane 4 is also increased, that is, the pressure resistance of the elastic membrane 4 is improved with the increase of the volume of the closed cavity 5. The height of the closed cavity 5 corresponding to the interval with the largest increase of the average pressure resistance flow of the elastic membrane 4 is 1.66mm-3.33mm.

[0057] Table 1: Average pressure resistance flow corresponding to closed cavity with different volumes

[0058]

[0059] Table 2 is the average pressure resistance flow corresponding to the size of different types of buffer particles (e.g. common buffer particles and BASS powder) filled in the same volume of the closed cavity 5 in one embodiment of the present disclosure. The volume of the closed cavity 5 is 3931mm 3 , and the area of the elastic film 4 is 786mm 2 . Referring to Table 2, the average pressure resistance flow of the elastic film 4 corresponding to the case of filling buffer particles in the closed cavity 5 is greater than the average pressure resistance flow of the elastic film 4 corresponding to the case of not filling buffer particles in the closed cavity 5, in other words, filling buffer particles in the closed cavity 5 can increase the pressure resistance of the elastic film 4. Compared with common buffer particles, the pressure resistance of the elastic film 4 can be improved when the buffer particles are BASS powder.

[0060] Table 2 is the average pressure resistance flow corresponding to the size of different types of buffer particles (e.g. common buffer particles and BASS powder) filled in the same volume of the closed cavity 5 in one embodiment of the present disclosure. The volume of the closed cavity 5 is 3931mm

[0061]

[0062] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses or adaptive changes of this disclosure that follow the general principles thereof and include known equivalents or technical possibilities within the scope of the present disclosure. The specification and examples are only considered as exemplary, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. An electronic device, comprising: The shell comprises a middle frame and a back shell; the middle frame comprises a middle plate and a frame surrounding the middle plate, and the back shell is located on one side of the middle plate and connected with the frame; The middle plate has a retaining wall, the elastic membrane covers the retaining wall, and the closed cavity is surrounded by the middle plate, the retaining wall and the elastic membrane. The retaining wall is an elastic structure. The shell comprises a middle frame and a back shell; the middle frame comprises a middle plate and a frame surrounding the middle plate, and the back shell is located on one side of the middle plate and connected with the frame; The middle plate comprises a flat part and a recessed part connected with each other, and the recessed part is recessed towards the back shell; the elastic membrane covers the recessed part. The middle plate further comprises a flat part and a recessed part connected with each other; the recessed part is recessed towards the back shell, the retaining wall is arranged around the recessed part and located on the flat part, and the elastic membrane covers the retaining wall; 2. The electronic device of claim 1, wherein, The closed cavity is surrounded by the recessed part, the retaining wall and the elastic membrane. The number of the elastic membranes is multiple, and the multiple elastic membranes form multiple closed cavities with the shell.

3. The electronic device of claim 2, wherein, The waterproof and breathable membrane is arranged in the shell and seals the pressure relief hole; 4. The electronic device of claim 1, wherein, One end of the pressure relief pipe is connected with the pressure relief hole and sealed by the waterproof and breathable membrane, and the other end is connected with the damping hole. One end of the pressure relief pipe is connected with the pressure relief hole, and the other end is connected with the waterproof and breathable membrane; the damping hole is in communication with the inner cavity of the shell.

5. The electronic device of claim 2, wherein, The closed cavity is provided with buffer particles, and the buffer particles have a porous structure. The height of the closed cavity is 1.66mm-3.33mm.

6. The electronic device of claim 1, wherein, ​ 7. The electronic device of claim 1, wherein, ​ ​ 8. The electronic device of claim 1, wherein, ​ 9. The electronic device of claim 1, wherein, ​ 10. The electronic device according to any one of claims 1 to 9, characterized by ​

Images