CN111510535A

CN111510535A - Electronic device

Info

Publication number: CN111510535A
Application number: CN202010360774.0A
Authority: CN
Inventors: 普静
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-08-07
Anticipated expiration: 2040-04-29
Also published as: CN111510535B

Abstract

The invention discloses electronic equipment which comprises a shell, a PCB, a microphone, a bracket, a first sealing layer and a fastener. The casing is provided with a sound inlet hole, the PCB is arranged in the casing, the microphone and the PCB are electrically coupled and are provided with sound receiving holes, the support is fixed on the PCB and is provided with a sound transmission channel communicated with the sound receiving holes and the sound inlet hole, the first sealing layer is arranged between the support and the microphone, and the fastener is tightly connected to the support and the PCB and used for fastening the support and the PCB so that the support compresses the first sealing layer. Adopt the electronic equipment of this embodiment, utilize the support to form the sound conduction passageway in order to ensure the normal radio reception of microphone, still can utilize the fastening of fastener, compress tightly first sealing layer between support and microphone to effectively play sealed effect to the connection between the sound conduction passageway of support and the sound receiving hole of microphone, avoid appearing leaking the sound at support and microphone junction.

Description

Electronic device

Technical Field

The invention relates to the technical field of microphones, in particular to electronic equipment.

Background

In order to realize sound input, a microphone is generally provided in an electronic device. In order to ensure the sound recording effect of the microphone and avoid the occurrence of sound leakage, the sound guide channel of the microphone is often required to be sealed. In the related art, the microphone is usually disposed on the bracket and abutted against the casing, and meanwhile, the sealing foam is adhered between the microphone and the casing, and then the double-sided adhesive tape is adhered on the bracket and adhered on the casing of the device. However, in the above manner, since the sealing foam is tightly pressed between the microphone and the casing, the sealing foam has an upward reaction force on the casing, the double-sided adhesive tape is bonded between the bracket and the casing, and the double-sided adhesive tape generates a downward bonding force on the casing, so that the directions of the forces generated by the sealing foam and the double-sided adhesive tape on the casing are opposite, the force of the casing on the sealing foam is weakened, the sealing effect of the microphone is poor, and the problem of sound leakage is easily caused.

Disclosure of Invention

The embodiment of the invention discloses electronic equipment which can effectively improve the sealing effect of a microphone.

In order to achieve the above object, the present invention discloses an electronic device including

The casing is provided with a sound inlet hole;

the PCB is arranged in the shell;

a microphone disposed on and electrically coupled to the PCB, the microphone having a sound receiving hole for receiving sound;

the bracket is fixed on the PCB and positioned in the shell, and is provided with a sound transmission channel communicated with the sound receiving hole and the sound inlet hole;

a first sealing layer disposed between the standoff and the microphone; and

and the fastening piece is fixedly connected to the bracket and the PCB and is used for fastening the bracket on the PCB so as to enable the bracket to press the first sealing layer.

Compared with the prior art, the invention has the beneficial effects that:

according to the electronic device disclosed by the embodiment of the invention, the support is arranged above the microphone in the casing, the sound transmission channel is arranged by utilizing the support to communicate the sound receiving hole of the microphone with the sound inlet hole on the casing, then the first sealing layer is arranged between the support and the microphone, and the support is fastened on the PCB by utilizing the fastening piece, so that the first sealing layer is pressed between the support and the microphone by utilizing the fastening action of the fastening piece, the connection between the sound transmission channel of the support and the sound receiving hole of the microphone is effectively sealed, and sound leakage at the connection part of the support and the microphone is avoided.

In addition, further include first support spare and second support spare through setting up the support among the electronic equipment of this embodiment, set up the second sealing layer between second support spare and first support spare, utilize elastic fastener to make second support spare compressible second sealing layer in first support spare simultaneously, effectively ensure the sealed effect of sound channel. Simultaneously, the elastic fastener is arranged to facilitate the disassembly and assembly of the second bracket piece and the first bracket piece.

Drawings

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

Fig. 1 is a schematic structural diagram of an electronic device disclosed in the present embodiment;

fig. 2 is a schematic structural view of the microphone disclosed in the present embodiment, which is disposed on the upper side of the PCB;

fig. 3 is a schematic structural view of the microphone disclosed in the present embodiment, which is disposed on the lower side of the PCB;

FIG. 4 is a schematic structural view of the bracket of the present embodiment including a first bracket member and a second bracket member;

FIG. 5 is a schematic view of the internal cross-sectional structure of FIG. 4;

FIG. 6 is a schematic structural view of a first bracket component disclosed in the present embodiment;

FIG. 7 is a schematic structural view of a second frame member disclosed in the present embodiment;

fig. 8 is a schematic structural view of the elastic fastener disclosed in this embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

Referring to fig. 1 and 2, the electronic device 100 includes a case 10, a PCB20, a microphone 30, a bracket 40, a first sealant 50, and a fastener 60. The casing 10 is provided with a sound inlet hole 101, and the PCB20 is provided in the casing 10. A microphone 30 is disposed on the PCB20 and electrically coupled to the PCB20, the microphone 30 having a sound receiving hole 31 for receiving sound. The bracket 40 is fixed to the PCB20 and located in the casing 10, and the bracket 40 is provided with a sound transmission channel 41 communicating with the sound receiving hole 31 and the sound inlet hole 101. The first sealing layer 50 is provided between the holder 40 and the microphone 30. The fastener 60 is fixedly coupled to the bracket 40 and the PCB20 for fastening the bracket 40 to the PCB20 to press the bracket 40 against the first sealant 50.

In the present embodiment, the microphone 30 is disposed on the PCB20, the sound transmission channel 41 for communicating the sound input hole 101 and the sound receiving hole 31 is formed on the bracket 40 disposed above the microphone 30, and the first sealing layer 50 is disposed between the microphone 30 and the bracket 40, and the bracket 40 is fastened to the PCB20 by the fastening member 60 while achieving normal sound reception of the microphone 30, so that the first sealing layer 50 is firmly pressed between the bracket 40 and the microphone 30, thereby achieving a good sealing effect. It can be seen that, with the solution of this embodiment, instead of the related art that the microphone 30 is disposed on the bracket 40, and then the sealing layer is disposed between the microphone 30 and the casing 10, a double-sided tape is additionally added to be adhered between the bracket 40 and the casing 10 to prevent the sealing layer from exerting an upward force on the casing 10 to push out the casing 10, which results in a poor sealing effect. In other words, the sealing effect is better and more reliable, and the sound transmission channel 41 for realizing the normal sound reception of the microphone 30 of the embodiment is formed on the bracket 40, so that no additional sound transmission component is required, and the overall structure compactness of the electronic device 100 can be ensured.

It is understood that the electronic device 100 related to the present application may be any electronic device 100 having functions of communication, talking, storage, or display, for example: smart phones, tablet computers, wearable devices (such as smart watches, smart bracelets), and the like.

For convenience of understanding, the electronic device 100 to which the present application is applied will be described below by taking the electronic device 100 as a mobile phone as an example. It should be noted that the mobile phone is only an example of one of the electronic devices 100, and the application is not particularly limited thereto, and the electronic device 100 may also be a tablet computer, a smart watch, or the like.

In some embodiments, the chassis 10 may be a housing of the electronic device 100, which may include a front side 102 and a back side that are opposed and spaced apart. Specifically, the casing 10 may include a screen (not shown) disposed on the front surface 102, a rear cover 103 disposed on the rear surface, and a middle frame 104 disposed on the side surface, the PCB20, the microphone 30, and the bracket 40 may be disposed in a cavity defined by the screen, the rear cover 103, and the middle frame 104, and the sound inlet 101 may be disposed on the rear cover 103.

In some embodiments, when the PCB20 is disposed within the housing 10, the PCB20 may serve as the main circuit board of the electronic device 100. The PCB20 may be a printed circuit board, a flexible circuit board, or a rigid-flex board. The PCB20 can be used to control the microphone 30 and the functional devices (e.g., camera module, music player, communication module, fingerprint recognition module, sensor module, etc.) in the electronic device 100 to perform their corresponding functions.

Considering that the sound inlet hole 101 is provided on the casing 10 and the microphone 30 is provided in the casing 10, the sound inlet hole 101, the sound transmission passage 41 and the sound receiving hole 31 together form a sound transmission path of the microphone 30. That is, the external sound enters the sound transmitting channel 41 through the inlet hole and then is transmitted to the sound receiving hole 31 through the sound transmitting channel 41. Alternatively, the projection of the sound receiving hole 31 on the casing 10 may be completely overlapped with the sound inlet hole 101 or may be offset from the sound inlet hole 101. For example, if the projection of the sound receiving hole 31 on the casing 10 completely coincides with the sound inlet hole 101, the sound transmission channel 41 may be a vertical channel. If the projection of the sound collecting hole 31 on the casing 10 is staggered with the sound inlet hole 101, the sound transmission channel 41 may be an oblique channel or the sound transmission channel 41 may be composed of a multi-section channel, at least one section of the multi-section channel is a non-vertical channel, so that the sound collecting hole 31 and the sound inlet hole 101 can be still communicated with each other when the sound collecting hole 31 and the sound inlet hole 101 are staggered, and normal sound transmission is realized.

In the present embodiment, the projection of the sound receiving hole 31 on the casing 10 is completely overlapped with the sound inlet hole 101, that is, the sound transmission channel 41 is a vertical channel.

Alternatively, the microphone 30 and the stand 40 may be disposed on the same side of the PCB20, or the microphone 30 and the stand 40 may be disposed on opposite sides of the PCB20, respectively.

As shown in fig. 2, the location of the fastener in fig. 2 is by way of example only and is not limited to a specific installation location. In an alternative embodiment, the microphone 30 and the bracket 40 are both disposed on the upper side of the PCB20, the bracket 40 is disposed on the microphone 30, the sound transmission channel 41 includes a first opening end 411 and a second opening end 413, the first opening end 411 is connected to the sound receiving hole 31, and the second opening end 413 is connected to the sound inlet hole 101. The first sealing layer 50 is pressed between the holder 40 and the microphone 30, and in order to allow the sound transmission channel 41 to normally transmit sound to the sound receiving hole 31, the first sealing layer 50 is provided with a first opening end 411 for avoiding the sound transmission channel 41 and a first clearance hole 51 for avoiding the sound receiving hole 31. In other words, the sound inlet 101, the second open end 413, the first open end 411, the first clearance hole 51 and the sound receiving hole 31 together form a sound transmission path of the microphone 30.

It is understood that the upper side of the PCB20 is a side of the PCB20 facing the rear cover 103 of the chassis 10, and the lower side of the PCB20 is a side of the PCB20 facing the screen of the chassis 10. Specifically, reference may be made to the direction indicated by the upward arrow and the direction indicated by the downward arrow shown in fig. 2, which are provided for convenience of description and understanding, and do not limit the scope of the present embodiment.

The bracket 40 is positioned above the microphone 30, and the bracket 40 can be directly pressed on the microphone 30, so that the sound transmission channel 41 and the sound receiving hole 31 of the microphone 30 can be conveniently communicated.

As shown in fig. 3, the location of the fasteners in fig. 3 is by way of example only and is not limited to their specific mounting locations. In another alternative embodiment, the microphone 30 is disposed on the underside of the PCB20 and the stand 40 is disposed on the upper side of the PCB 20. The sound transmission channel 41 includes a first open end 411 and a second open end 413, the first open end 411 is communicated with the sound receiving hole 31, and the second open end 413 is communicated with the sound inlet hole 101. The PCB20 is provided with a first opening 21 communicating with the sound receiving hole 31 and the first opening 411, the first sealing layer 50 is compressed between the bracket 40 and the PCB20, and the first sealing layer 50 is provided with a first clearance hole 51 avoiding the first opening 411 and the first opening 21 in order to realize the sound transmission channel 41 capable of normally transmitting sound to the sound receiving hole 31. In other words, the sound inlet 101, the second open end 413, the first open end 411, the first opening 21, the first clearance hole 51 and the sound receiving hole 31 together form a sound transmission path of the microphone 30.

Alternatively, the aperture of the first opening 21 may be larger than that of the sound receiving hole 31, so that when sound is transmitted to the first opening 21, contact with the inner wall surface of the first opening 21 may be avoided, and the probability of reflection of sound at this position may be reduced, thereby reducing attenuation of sound.

Correspondingly, the aperture of the first clearance hole 51 may also be larger than the aperture of the sound receiving hole 31, so as to reduce the probability of sound reflection at the first clearance hole 51 and reduce sound attenuation.

By disposing the microphone 30 on the lower side of the PCB20, on the one hand, the occupation of the space above the PCB20 is reduced, and on the other hand, since the bracket 40 is fastened to the PCB20 by the fastening member 60, the first sealing layer 50 is disposed between the PCB20 and the bracket 40, and due to the fastening action of the fastening member 60, the first sealing layer 50 can be better pressed between the PCB20 and the bracket 40, thereby reducing the possibility of sound leakage when the sound is transmitted from the first open end 411 to the first opening 21.

It is understood that the upper side of the PCB20 is a side of the PCB20 facing the rear cover 103 of the chassis 10, and the lower side of the PCB20 is a side of the PCB20 facing the screen of the chassis 10. Reference may be made specifically to the direction indicated by the upward arrow and the direction indicated by the downward arrow as shown in fig. 3, which are given as examples for ease of description and understanding and do not limit the scope of the present embodiment.

Alternatively, the first sealing layer 50 may be a sealing material such as silicone or foam. The first sealing layer 50 is made of foam, and the foam has a certain amount of compression deformation and can be compressed between the bracket 40 and the PCB20 or the microphone 30, so that good sealing and sound insulation effects are achieved.

Further, in order to improve the sealing effect, the first sealant 50 may be adhesively bonded between the bracket 40 and the PCB20 or the microphone 30 in order to prevent the first sealant 50 from being displaced between the bracket 40 and the PCB20 or the microphone 30. For example, when the bracket 40 and the microphone 30 are both disposed on the upper side of the PCB20, that is, the first sealant 50 is disposed between the microphone 30 and the bracket 40, an adhesive or a solid adhesive may be disposed on opposite sides of the first sealant 50, one side of the first sealant 50 is then bonded to the microphone 30, and the bracket 40 is then fixed to the other side of the first sealant 50. It will be appreciated that in other embodiments, the first sealant layer 50 can be positioned by providing a positioning groove (not shown). Illustratively, when the first sealant 50 is disposed between the bracket 40 and the PCB20, detents may be provided on the bracket 40 and/or the PCB20, and placement of the first sealant 50 within the detents may limit the position of the first sealant 50 and prevent it from becoming dislodged.

Alternatively, the fasteners 60 may be rigid fasteners such as screws, bolts or rivets. During assembly, bracket 40 may be secured to PCB20 by providing threaded holes in bracket 40 and PCB20 and engaging fasteners 60, such as screws or bolts, through the threaded holes.

Rigid fasteners such as screws, bolts or rivets are adopted to provide good fastening force, so that the bracket 40 can be firmly fixed on the PCB20, and the bracket 40 can be further pressed on the first sealing layer 50 under the action of the fastening force, thereby realizing better sealing effect. It is understood that in other embodiments, the fastener 60 may alternatively be a rigid fastener such as a pin, peg, or the like.

Alternatively, the stent 40 may comprise one or more stent members connected in series, and when the stent 40 comprises a plurality of stent members connected in series, a channel may be provided through each stent member. Illustratively, when the stand 40 comprises a stand member, the lower end of the stand member is fixedly connected to the PCB20, and the upper end of the stand member is disposed adjacent to the rear cover 103 of the casing 10. When the bracket 40 includes a plurality of bracket members connected in sequence, the plurality of bracket members may be connected in sequence from bottom to top, the bracket member located at the lowermost position may be connected to the PCB20, and the bracket member located at the uppermost position may be the bracket member located closest to the rear cover 103 of the casing 10.

Take the example where the bracket 40 comprises two bracket members connected in series.

Referring to fig. 4 and 5 together, wherein a housing of the electronic device is omitted in fig. 4, showing that the stand includes a first stand member and a second stand member, fig. 5 is an internal cross-sectional view of fig. 4 taken along a center of the sound transmission channel. The bracket 40 includes a first bracket member 42 and a second bracket member 43 arranged in sequence from bottom to top, the first bracket member 42 is fixed to the PCB20 by a fastener 60, and the first sealant 50 is provided between the first bracket member 42 and the PCB 20. The second bracket member 43 is fixedly attached to the first bracket member 42. The sound transmission passage 41 includes a first passage portion 41a provided to the first bracket member 42 and a second passage portion 41b provided to the second bracket member 43, the second passage portion 41b communicating with the first passage portion 41 a. The first channel portion 41a has the first open end 411, and the second channel portion 41b has the second open end 413, i.e., the first channel portion 41a is communicated with the sound emission hole 31, and the second channel portion 41b is communicated with the sound inlet hole 101.

Further, it is considered that since the sound inlet hole 101 is provided in the rear cover 103 of the case 10, that is, the microphone 30 may be provided inside the rear cover 103 of the case 10. In general, when the sound inlet holes 101 are formed in the rear cover 103 of the housing 10, it is considered that the sound inlet holes 101 and the camera light inlet holes 105 (shown by dotted lines in fig. 1) formed in the rear cover 103 of the housing 10 have a decorative effect with concentrated positions in appearance, and therefore, the first bracket member 42 may be a main board bracket 40 for fixing a functional device such as a camera, and the second bracket member 43 may be a camera decoration, so that while the decorative effect with concentrated positions in appearance of the sound inlet holes 101 and the camera light inlet holes 105 is satisfied, the sound transmission channel 41 may be formed by using the existing bracket member in the electronic device 100, and there is no need to add additional structural members such as pipes or modify the housing 10 of the electronic device 100 to form the sound transmission channel 41, thereby reducing the structural member cost and the processing modification cost of the electronic device 100.

In addition, since the first and

second stand members

42 and 43 are stacked along the longitudinal direction of the PCB20, the stand 40 using the arrangement including the first and

second stand members

42 and 43 occupies less space in the lateral direction of the electronic device 100, so that the electronic device 100 can maintain a slim design.

Further, in order to avoid a situation where sound leakage occurs when sound is transmitted between the first passage portion 41a and the second passage portion 41b, a second sealing layer 70 may be provided between the second frame member 43 and the first frame member 42, and in order not to affect sound transmission of the second passage portion 41b and the first passage portion 41a, the second sealing layer 70 is provided with a second escape hole 71 that escapes from the second passage portion 41b and the sound inlet hole 101.

Optionally, the second sealing layer 70 is made of a sealing material such as silicone or foam. The second sealing layer 70 is made of foam, and the foam has a certain amount of compressive deformation and can be compressed between the first bracket member 42 and the second bracket member 43, so that good sealing and sound insulation effects can be achieved. In the specific installation, the two sides of the foam, which are used for connecting the first support member 42 and the second support member 43, can be respectively provided with adhesive or solid adhesive, one end of the foam is firstly bonded on the first support member 42, and then the second support member 43 is bonded on the other end of the foam, so that the second support member 43 can be fixed on the first support member 42.

Further, in order to prevent the second sealing layer 70 from being displaced between the first bracket member 42 and the second bracket member 43 to cause a poor sealing effect and possibly affect the sound transmission of the sound transmission path 41, a stopper groove may be provided at the first bracket member 42 and/or the second bracket member 43, the second sealing layer 70 may be disposed in the stopper groove during installation, and then the first bracket member 42 and the second bracket member 43 may be pressed to restrict the position of the second sealing layer 70 between the first bracket member 42 and the second bracket member 43. For example, a stopper groove may be formed on a surface of the first bracket member 42 facing the second bracket member 43, the second sealant 70 may be adhered to the stopper groove, and then the second bracket member 43 may be pressed against the second sealant 70.

Considering that the second sealing layer 70 is pressed against the second bracket member 43 and the first bracket member 42, the second sealing layer 70 has an upward reaction force on the second bracket member 43, which may cause the second bracket member 43 to act upward on the rear cover 103 of the casing 10, resulting in a situation where the rear cover 103 of the casing 10 is lifted. In order to prevent this, the electronic device 100 of the embodiment further includes an elastic fastener 80, the elastic fastener 80 is detachably connected to the second frame member 43 and the first frame member 42, and the elastic fastener 80 provides a connecting force to enable the second frame member 43 to firmly press the second sealing layer 70 against the first frame member 42.

The elastic fastener 80 is detachably connected to the first support member 42 and the second support member 43, on one hand, the elastic fastener 80 can provide a downward fastening force to enable the second support member 43 to press the second sealing layer 70 against the first support member 42, so that an upward reaction force of the second sealing layer 70 against the second support member 43 is weakened, and a situation that the second support member 43 is acted on the rear cover 103 of the chassis 10 by the reaction force of the second sealing layer 70 to cause the rear cover 103 of the chassis 10 to be jacked up is avoided. On the other hand, the elastic fastener 80 is detachably connected to the first bracket part 42 and the second bracket part 43, so that the second bracket part 43 can be conveniently detached relative to the first bracket part 42, and the situation that the rear cover 103 of the casing 10 is cracked due to difficulty in detaching the second bracket part 43 and stress concentration possibly caused by adopting a rigid fastener or a rigid fastener is avoided.

As shown in fig. 6 and 7, further, the first bracket member 42 may include a first portion 42a and a second portion 42b, the first portion 42a is provided with the first passage portion 41a, and the first portion 42a is fixed to the PCB20, and the second portion 42b is provided with the first card hole 422. The second bracket member 43 includes a third portion 43a and a fourth portion 43b, the third portion 43a is provided on the first portion 42a, the third portion 43a is provided with the second channel portion 41b, the third portion 43a is fixed to the first portion 42a, and the second sealant 70 is compressed between the first portion 42a and the third portion 43 a. The fourth portion 43b has a second hole 432 connected to the first hole 422, and the elastic fastener 80 is fastened to the first hole 422 and the second hole 432.

Specifically, the first portion 42a is a vertically disposed approximately cylindrical structure, the first portion 42a is fixed on the PCB20 along a vertical direction, the first passage portion 41a is a vertical hole penetrating through upper and lower sides of the first portion 42a, a lower end of the first passage portion 41a is a first opening end 411, and an upper end of the first passage portion 41a is communicated with the second passage portion 41 b. The second portion 42b extends horizontally from the circumferential direction of the first portion 42a, the second portion 42b is of a flat plate-shaped structure, and the first engaging hole 422 is opened at one end of the second portion 42b far from the first passage portion 41 a.

Optionally, the second portion 42b has an upper surface 420 and a lower surface 421 opposite to each other, the first locking hole 422 penetrates the upper surface 420 and the lower surface 421 of the second portion 42b, and a distance is provided between the upper surface 420 of the second portion 42b and the upper surface 423 of the first portion 42a, so that the third portion 43a of the second bracket member 43 can abut against the upper surface 423 of the first portion 42 a. Specifically, the second frame member 43 may have a flat plate-like structure, a third portion 43a abuts on the upper surface 423 of the first portion 42a, the third portion 43a is provided with the second channel portion 41b, the second channel portion 41b is also a vertical through hole provided on the third portion 43a, the upper end of the second channel portion 41b is the second open end 413, and the lower end of the second channel portion 41b is communicated with the upper end of the first channel portion 41 a.

Further, considering the distance between the third portion 43a and the second portion 42b, which is the distance between the upper surface 420 of the second portion 42b and the upper surface 423 of the first portion 42a, the fourth portion 43b may be provided with a sinking groove 430, the sinking groove 430 is recessed downward from the upper surface of the fourth portion 43b, and the bottom surface of the sinking groove 430 abuts against the upper surface 420 of the second portion 42 b. It will be appreciated that the depth of depression of the depressed recess 430 is dependent upon the spacing of the upper surface 420 of the second portion 42b from the upper surface 423 of the first portion 42a, so long as the depressed recess 430 is capable of being depressed to a bottom surface in abutment with the upper surface 420 of the second portion 42 b. In addition, in other embodiments, a boss may be disposed on a surface of the fourth portion 43b facing the second portion 42b, and the boss abuts against the second portion 42b, so that the fourth portion 43b and the second portion 42b can be connected.

Further, the second fastening hole 432 is disposed at the bottom of the sinking groove 430, and the elastic fastener 80 is inserted into the first fastening hole 422 from the second fastening hole 432, so as to detachably connect the fourth portion 43b and the second portion 42 b. Specifically, when the elastic fastener 80 is fastened to the first fastening hole 422 and the second fastening hole 432, the elastic fastener 80 is located in the sinking groove 430. By adopting the mode, the elastic fastener 80 is arranged far away from the rear cover 103 of the machine shell 10, the elastic fastener 80 is prevented from acting on the rear cover 103 of the machine shell 10, and the situation that the rear cover 103 of the machine shell 10 is cracked due to stress concentration is avoided.

Optionally, the projection of the resilient fastener 80 on the first frame member 42 is offset from the projection of the fastener 60 on the first frame member 42. Specifically, the fastening member 60 is fastened to the first frame member 42 and the PCB20, and is mainly connected between the second portion 42b of the first frame member 42 and the PCB20, so that the position where the elastic fastening member 80 is connected to the second portion 42b of the first frame member 42 and the position where the fastening member 60 is connected to the second portion 42b of the first frame member 42 are staggered from each other, thereby preventing the fastening member 60 from affecting and interfering with the arrangement of the elastic fastening member 80.

In addition, in order to avoid the situation that the fastener 60 contacts with the second bracket member 43 to scratch the second bracket member 43 or cause stress concentration of the second bracket member 43, a certain distance is arranged between the upper surface 420 of the fastener 60 and the lower surface 421 of the second bracket member 43.

Alternatively, the elastic fastener 80 may be made of silicone, nylon or rubber material, so as to have good deformation characteristics under force, thereby providing an elastic force to connect the second portion 42b and the fourth portion 43b, and facilitating the assembly and disassembly of the elastic fastener 80 during deformation under force, and further facilitating the assembly and disassembly of the second portion 42b and the fourth portion 43 b.

As shown in fig. 8, the elastic fastener 80 further includes a main body 81, and a first fastening portion 82 and a second fastening portion 83 respectively disposed at two ends of the main body 81, the main body 81 can penetrate into the first fastening hole 422 from the second fastening hole 432, the first fastening portion 82 can be located outside the first fastening hole 422 and abut against the second portion 42b, and the second fastening portion 83 is located outside the second fastening hole 432 and abuts against the bottom surface of the sinking groove 430.

The second engaging portion 83 is located outside the second engaging hole 432 and abuts against the bottom surface of the sinking groove 430, and the first engaging portion 82 is located outside the first engaging hole 422 and abuts against the lower surface 421 of the second portion 42b, which is equivalent to the first engaging portion 82 and the second engaging portion 83 are used to respectively limit the positions of the main body portion 81 in the first engaging hole 422 and the second engaging hole 432, so as to prevent the main body portion 81 from falling out from the first engaging hole 422 and the second engaging hole 432.

Optionally, the main body 81 is a vertical rod-shaped structure, and an outer diameter of the main body 81 can match with inner diameters of the second locking hole 432 and the first locking hole 422 so as to penetrate through the second locking hole 432 and the first locking hole 422. The second engaging portion 83 can be a flat structure, the second engaging portion 83 has an abutting surface for abutting against the plane of the second engaging hole 432, and the outer diameter of the second engaging portion 83 is larger than the inner diameter of the second engaging hole 432, so that the second engaging portion 83 cannot enter the second engaging hole 432. The first engaging portion 82 has a substantially umbrella-shaped structure, and the first engaging portion 82 extends from one end connected to the main body portion 81 in a direction inclined toward the second engaging portion 83. The outer diameter of the first engaging portion 82 is also larger than the inner diameter of the first engaging hole 422, so that the first engaging portion 82 can remain outside the first engaging hole 422.

Considering that the elastic fastener 80 is installed in the first fastening hole 422 and the second fastening hole 432, the first fastening portion 82 is deformed to penetrate through the first fastening hole 422, and the second fastening portion 83 is always located outside the second fastening hole 432, therefore, the second fastening portion 83 is a flat structure, and the first fastening portion 82 is designed to be approximately umbrella-shaped, which is beneficial to the deformation of the first fastening portion 82, so that the first fastening portion can smoothly penetrate through the first fastening hole 422 during assembly, and when the elastic fastener 80 is disassembled, the first fastening portion 82 can penetrate through the first fastening hole 422 when deformed by a force, so that the elastic fastener 80 can be disengaged from the first fastening hole 422 and the second fastening hole 432. It is understood that, in other embodiments, the first engaging portion 82 may also have a flat plate-like structure.

Further, in order to save labor when the elastic buckle 80 is assembled and disassembled, one or more notches 821 may be disposed on the first fastening portion 82, and the one or more notches 821 divide the first fastening portion 82 into a plurality of sub-fastening portions 822. Illustratively, as shown in fig. 8, four cutouts 821 are provided on the first engaging portion 82, and the four cutouts 821 divide the first engaging portion 82 into four sub-engaging portions 822. Specifically, the four sub engaging portions 822 are spaced apart from each other with the center of the main body 81 as the center to form an approximately cross-shaped structure. It is understood that in other embodiments, the cutout 821 may also be one, two, three, or more, thereby dividing the first latch portion 82 into two, three, or more sub-latch portions 822.

By adopting the design that one or more notches 821 are arranged on the first buckling part 82 to divide the first buckling part 82 into a plurality of sub-buckling parts 822, the design of the notches 821 can be utilized to provide a deformation space for the sub-buckling parts 822 to deform under stress, so that the first buckling part 82 can penetrate into the first clamping hole 422 from the outside of the first clamping hole 422 when deforming under stress, and the elastic fastener 80 can be conveniently separated from the first clamping hole 422 and the second clamping hole 432.

The assembly process of the electronic device 100 of the present embodiment is briefly described below:

the microphone 30 is first secured to the underside of the PCB20, the first sealant 50 is then disposed over the upper side of the PCB20, the first portion 42a of the first bracket member 42 is compressed against the first sealant 50, and the second portion 42b of the first bracket member 42 is then secured to the PCB20 by the fasteners 60 via the fasteners 60. The second frame member 43 is fixed on the first frame member 42 through the second sealing layer 70, and the second channel portion 41b of the second frame member 43 is aligned with the first channel portion 41a of the first frame member 42, and then the fourth portion 43b of the second frame member 43 abuts against the second portion 42b of the first frame member 42, and the first fastening portion 82 of the elastic fastener 80 is inserted into the first fastening hole 422 from the second fastening hole 432 until the first fastening portion 82 is located outside the first fastening hole 422, and at this time, the second fastening portion 83 of the elastic fastener 80 is also located outside the second fastening hole 432, so that the elastic fastener 80 can be used to press the second sealing layer 70 between the first frame member 42 and the second frame member 43.

When the second support member 43 needs to be disassembled and assembled, the elastic fastener 80 is pulled by force, so that the first buckling portion 82 is deformed by force from the outside of the first fastening hole 422 to the inside of the first fastening hole 422 and penetrates through the first fastening hole 422, the elastic fastener 80 can be separated from the inside of the first fastening hole 422 and the second fastening hole 432, and the second support member 43 can be disassembled and assembled at this time.

With the electronic device 100 of the present embodiment, the first sealant 50 is disposed between the PCB20 and the first bracket member 42 having the first channel portion 41a, and the first bracket member 42 is fastened to the PCB20 by the fastening member 60, so that the first bracket member 42 can press the first sealant 50, thereby improving the sealing effect of the first sealant 50. Meanwhile, the second sealing layer 70 is disposed between the first bracket member 42 and the second bracket member 43 formed with the second channel portion 41b, and the second bracket member 43 is pressed against the first bracket member 42 by the elastic fastening member 80, so that the second sealing layer 70 can be further pressed, and the sealing effect of the second sealing layer 70 can be improved. That is, with the present embodiment, the connection between the microphone 30 and the sound transmission channel 41 can be sealed from above, and a sound leakage situation at the connection can be avoided.

In addition, the second supporting frame 43 and the first supporting frame 42 are detachably connected by the elastic fastener 80, which not only facilitates the disassembly and assembly of the second supporting frame 43 and the first supporting frame 42, but also avoids the problem that the rear cover 103 of the casing 10 is cracked due to stress concentration which may be caused to the rear cover 103 of the casing 10 when the second supporting frame 43 and the first supporting frame 42 are connected by the rigid fastener.

The electronic device disclosed in the embodiments of the present invention is described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific embodiments, and the description of the embodiments above is only used to help understanding the electronic device and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. An electronic device, characterized in that: comprises that

The casing is provided with a sound inlet hole;

the PCB is arranged in the shell;

a first sealing layer disposed between the standoff and the microphone; and

2. The electronic device of claim 1, wherein: the sound transmission channel comprises a first opening end and a second opening end, the first opening end is communicated with the sound receiving hole, and the second opening end is communicated with the sound inlet hole;

the microphone and the support are arranged on the upper side of the PCB, the support is located on the microphone, and a first opening end for avoiding the sound transmission channel and a first clearance hole for avoiding the sound receiving hole are formed in the first sealing layer.

3. The electronic device of claim 1, wherein: the sound transmission channel comprises a first opening end and a second opening end, the first opening end is communicated with the sound receiving hole, and the second opening end is communicated with the sound inlet hole;

the microphone is arranged on the lower side of the PCB, the support is arranged on the upper side of the PCB, the PCB is provided with a first opening communicated with the sound receiving hole and the first opening end, the first sealing layer is arranged between the support and the PCB, and a first clearance hole for avoiding the first opening end and the first opening hole is formed in the first sealing layer.

4. The electronic device of claim 1, wherein: the bracket comprises a first bracket part and a second bracket part which are sequentially arranged from bottom to top, the first bracket part is fixed to the PCB through the fastener, the first sealing layer is arranged between the first bracket part and the microphone, and the second bracket part is fixedly connected to the first bracket part;

the sound transmission channel comprises a first channel part arranged on the first support piece and a second channel part arranged on the second support piece, the second channel part is communicated with the first channel part, the first channel part is communicated with the sound receiving hole, and the second channel part is communicated with the sound inlet hole.

5. The electronic device of claim 4, wherein: the electronic device further comprises a second sealing layer, the second sealing layer is arranged between the second support piece and the first support piece, and the second sealing layer is provided with a second clearance hole avoiding the opening end of the second channel part and the sound inlet hole.

6. The electronic device of claim 5, wherein: the electronic equipment further comprises an elastic fastener, and the elastic fastener is detachably connected with the second support piece and the first support piece so that the second support piece compresses the second sealing layer on the first support piece.

7. The electronic device of claim 6, wherein: the first bracket part comprises a first part and a second part, the first part is provided with the first channel part, and the second part is provided with a first clamping hole;

the second bracket part comprises a third part and a fourth part, the third part is arranged on the first part, the third part is provided with the second channel part, and the fourth part is provided with a second clamping hole communicated with the first clamping hole;

the elastic fastener is buckled and connected with the first clamping hole and the second clamping hole.

8. The electronic device of claim 7, wherein: the elastic fastener comprises a main body part and a first buckling part and a second buckling part which are arranged at two ends of the main body part respectively, the main body part is arranged in the first clamping hole in a penetrating manner in the second clamping hole, the first buckling part is arranged outside the first clamping hole and abutted against the second part, and the second buckling part is arranged outside the second clamping hole and abutted against the fourth part.

9. The electronic device of claim 8, wherein: the fourth part is provided with a sinking groove with an upward opening, the bottom surface of the sinking groove is provided with the second clamping hole, and the second buckling part is abutted to the bottom surface of the sinking groove.

10. The electronic device of claim 8, wherein: the first buckling part is of an umbrella-shaped structure, the first buckling part extends towards the direction of the second buckling part in an inclined mode from one end connected with the main body part, one or more notches are arranged on the first buckling part, and the one or more notches separate the first buckling part into a plurality of sub-buckling parts.

11. The electronic device of any of claims 4-10, wherein: the first support piece is a main board support, and the second support piece is a camera decorating piece.

12. The electronic device of any of claims 1-10, wherein: the fastener is a screw, a bolt or a rivet.

13. The electronic device of any of claims 1-10, wherein: the casing includes relative front and the back that sets up at interval, the front is equipped with the screen, sound inlet hole locates the back.