CN213368124U

CN213368124U - Acoustic module and electronic device

Info

Publication number: CN213368124U
Application number: CN202022771997.4U
Authority: CN
Inventors: 黄楠
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-06-04
Anticipated expiration: 2030-11-25

Abstract

The application discloses this acoustics subassembly and electronic equipment belongs to electron technical field. The acoustic assembly includes a support and an acoustic device; the support is provided with a first accommodating groove and a first sound guide channel communicated with the first accommodating groove, the first sound guide channel comprises a first channel port and a second channel port, the first channel is positioned in the first accommodating groove, the second channel port is positioned on the first surface of the support, and the second channel port is used for being communicated with the outside of equipment; the acoustic device is located in the first accommodating groove, and the acoustic device is opposite to the first passage opening. In this application embodiment, through installing acoustic assembly in electronic equipment, only need seal the position of intercommunication between second access mouth and the equipment and avoid revealing, reduced the position that needs seal, solved and need sealed the too much structure complicacy that causes in position, the problem that sealed position reveals appears easily.

Description

Acoustic module and electronic device

Technical Field

The application belongs to the technical field of electronics, concretely relates to acoustics subassembly and electronic equipment.

Background

With the continuous development of electronic devices, the voice function of the electronic devices is receiving more attention, and the voice quality requirements of the electronic devices are further improved. The sealing structure in the electronic equipment is complex, a plurality of parts need to be involved, and the installation requirement of the acoustic assembly is met by matching of the parts.

The assembly and the sealing among a plurality of parts can lead to the sealing problem because of the error problem to lead to the acoustics subassembly to receive the influence, produce problems such as echo and noise, influence voice quality. In the process of implementing the application, the inventor finds that at least the problems that the structure is complicated due to the fact that too many sealing positions are needed for installing the acoustic assembly and the sealing positions are easy to leak exist in the prior art.

Disclosure of Invention

The purpose of the embodiment of the application is to provide an acoustic assembly, can solve the installation acoustic assembly and need the too much structure complicacy that causes in sealed position, the problem that sealed position reveals appears easily.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, embodiments of the present application provide an acoustic assembly comprising a support and an acoustic device;

the support is provided with a first accommodating groove and a first sound guide channel communicated with the first accommodating groove, the first sound guide channel comprises a first channel port and a second channel port, the first channel is positioned in the first accommodating groove, the second channel port is positioned on the first surface of the support, and the second channel port is used for being communicated with the outside of equipment;

the acoustic device is located in the first accommodating groove, and the acoustic device is opposite to the first passage opening.

In a second aspect, embodiments of the present application provide an electronic device, which includes a middle frame and an acoustic assembly as described above;

the middle frame is provided with a second accommodating groove, and the acoustic assembly is positioned in the second accommodating groove;

the middle frame is provided with a second sound guide channel, and the first sound guide channel is communicated with the outside of the equipment through the second sound guide channel.

In this application embodiment, through installing acoustic assembly in electronic equipment, only need seal the position of intercommunication between second access mouth and the equipment and avoid revealing, reduced the position that needs seal, solved and need sealed the too much structure complicacy that causes in position, the problem that sealed position reveals appears easily.

Drawings

Fig. 1 is a schematic diagram of the structure of an acoustic assembly according to an embodiment of the present application.

Fig. 2 is an exploded view of an acoustic assembly and bezel connection structure in an electronic device according to an embodiment of the present application.

Fig. 3 is a schematic partial structure diagram of an electronic device in an embodiment of the present application.

Description of reference numerals:

1-support, 10-first sound guide channel, 101-first sub-channel, 102-second sub-channel, 103-third sub-channel, 11-first surface, 111-second channel opening, 12-step part, 2-acoustic device, 3-flexible circuit board, 4-flexible circuit board support, 5-sealant, 6-middle frame, 60-second sound guide channel, 601-third channel opening, 602-fourth channel opening, 61-second holding tank, 7-dust screen and 8-rear cover.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. The objects distinguished by "first", "second", and the like are usually a class, and the number of the objects is not limited, and for example, the first object may be one or a plurality of objects. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The acoustic assembly provided by the embodiments of the present application is described in detail with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

In one embodiment of the present application, there is provided an acoustic assembly, as shown in fig. 1, comprising a support 1 and an acoustic device 2; the support 1 is provided with a first accommodating groove and a first sound guide channel 10 communicated with the first accommodating groove, the first sound guide channel 10 comprises a first channel port and a second channel port 111, the first channel port is positioned in the first accommodating groove, the second channel port 111 is positioned on the first surface 11 of the support 1, and the second channel port 111 is used for being communicated with the outside of equipment;

the acoustic device 2 is located in the first receiving groove, and the acoustic device 2 is opposite to the first passage port, so that the acoustic device can act on the first sound leading passage 10.

The acoustic device 2 is used for processing sound signals and is typically arranged within an electronic apparatus. The acoustic device 2 is, for example, a microphone. The acoustic device 2 receives the sound signal through the first sound guiding channel 10 with the first channel opening located in the first accommodating groove. For example, the first passage opening is located at the bottom of the first receiving groove, and the sound pickup portion of the acoustic device 2 is fastened to the first passage opening and communicated with the first sound guide passage 10. The sound signal reaches the first port through the first sound guide channel 10, and is picked up by the sound pickup portion of the acoustic device 2, as indicated by the broken line and the arrow in fig. 1. For example, the first passage opening may be located at a side surface of the first receiving groove.

For example, the acoustic device 2 may also be a loudspeaker, and sound emitted by the loudspeaker is emitted to the outside of the apparatus via the first sound guiding channel 10.

When the acoustic assembly is assembled, the first surface 11 where the second channel opening 111 is located is communicated with a corresponding acoustic hole on the electronic device, so that the first sound guide channel 10 is communicated with the outside of the device. For example, the acoustic aperture may be a sound outlet or pickup aperture of the electronic device. During assembly, the acoustic assembly can be assembled only by sealing between the first surface 11 and the position assembled with the first surface 11, the sealing positions are few, the sealing structure is simple, and the problem that a plurality of sealing positions are easy to leak is effectively solved.

In one embodiment, the first receiving groove is located on a second surface of the bracket 1, the first surface 11 being adjacent to the second surface;

the first sound guiding channel 10 includes a first sub-channel 101 and a second sub-channel 102, the first sub-channel 101 communicates with the second sub-channel 102, the first sub-channel 101 includes the first channel opening, the second sub-channel 102 includes the second channel opening 111, an axis of the first sub-channel is perpendicular to the bottom surface of the first receiving groove, and an axis of the second sub-channel 102 is perpendicular to the first surface 111.

In this embodiment, the first sub-passage 101 is vertically arranged in the axial direction at the bottom surface of the first accommodation groove so that the acoustic device 2 faces the first sub-passage 10, and the second sub-passage 102 is vertically arranged in the axial direction at the first surface 11 so that the second sub-passage 102 faces the first surface 11. In such a structure, the resistance of the channel wall of the first sound guiding channel 10 to the sound signal can be reduced, so that the sound signal entering the second sub-channel 102 can rapidly pass through the second sub-channel 102, and the sound signal of the first sub-channel 101 can rapidly pass through the first sub-channel 101. The rapid passage of the sound signal through the first sound guiding channel 10 improves the sound guiding efficiency of the acoustic assembly.

In one embodiment, the first sound guiding channel 10 further comprises a third sub-channel 103, and the first sub-channel 101 communicates with the second sub-channel 102 through the third sub-channel 103.

The third sub-channel 103 connects the first sub-channel 101 with the second sub-channel 102, so that the first sub-channel 101 and the second sub-channel 102 can adapt to different angles, and the first sound guiding channel 10 has high sound conduction efficiency.

For example, the axial direction of the first sub-channel 101 and the axial direction of the second sub-channel 102 form an included angle, and in order to reduce the blocking effect of the communication position of the first sub-channel 101 and the second sub-channel 102 on the sound signal, the third sub-channel 103 is configured as an arc-shaped channel with excessive smoothness, so that the blocking effect of the channel wall on the sound signal is reduced, and the sound guiding efficiency is improved.

Alternatively, the specific external structure of the stent 1 may vary from device to device. The included angle between the axis of the first sub-channel 101 and the bottom surface of the first containing groove can be set to any angle, and the included angle between the axis of the second sub-channel 102 and the first surface 11 can be set to any angle, so as to adapt to specific structures when being used for different devices.

In one embodiment, the first sound guiding channel 10 is an L-shaped channel, a U-shaped channel or a V-shaped channel.

In the structure of the bracket 1, the first sound guiding channel 10 is communicated from the first receiving groove to the position of the first surface 11, the first channel port of the first sound guiding channel 10 is located in the first receiving groove, and the second channel port 111 is located on the first surface 11. The specific structural shape of the first sound guide channel 10 is set according to the structure of the actual machining support 1, so that the circumferential direction of the first sound guide channel 10 has enough structure to protect the structural strength and the sealing property of the first sound guide channel 10.

In one embodiment, the acoustic assembly further includes a flexible circuit board 3 and a flexible circuit board support 4, the flexible circuit board 3 is disposed on the flexible circuit board support 4, the flexible circuit board support 4 is disposed in the first receiving groove, and the acoustic device 2 is electrically connected to an external circuit through the flexible circuit board 3.

In this embodiment, the flexible circuit board 3 is provided for connecting the acoustic device 2 with an external circuit, thereby enabling the acoustic device 2 to efficiently process a sound signal. For example, the external circuit receives or emits a sound signal through the acoustic device 2.

For example, the flexible circuit board 3 is conducted to the outer surface of the bracket 1, and a corresponding electrical connection structure is provided on the outer surface. The electrical connection structure may be a contact, a pad or a reserved wire. The specific location of the electrical connection structure corresponds to the circuitry within the device to which the acoustic assembly is mounted to facilitate electrical connection. For example, a structure which is electrically connected with an electrical connection structure on the outer surface of the support 1 is preset at the position where the acoustic assembly is installed, and is communicated with the circuit of the equipment through the structure, and the structure can be a contact, a welding pad or a reserved lead. Such a structure that sets up can effectively ensure that acoustic device 2 switches on with external circuit and realizes the electricity and connect.

The flexible circuit board support 4 is used to provide support for the flexible circuit board 3, for example, the flexible circuit board support 4 is a steel sheet, which can provide sufficient structural strength for disposing the flexible circuit board 3.

In one embodiment, the flexible circuit board support 4 is located at the bottom surface of the first receiving groove, the flexible circuit board 3 is located at a side far away from the bottom surface of the first receiving groove, and the acoustic device 2 is located at a side of the flexible circuit board 3 far away from the flexible circuit board support 4.

In this embodiment, the flexible circuit board holder 4, the flexible circuit board 3, and the acoustic device 2 are stacked in this order into the first accommodation groove, effectively utilizing the space inside the first accommodation groove.

The flexible circuit board support 4 is provided with a hollow structure corresponding to the position of the first sound guide channel 10, and the flexible circuit board 3 and the hollow structure form avoidance so that the acoustic device 2 can be opposite to the first sound guide channel 10 to effectively process sound signals.

In one embodiment, a sealant 5 is disposed in the first receiving groove, and the sealant 5 is disposed between the acoustic device 2 and the first receiving groove.

In this embodiment, the sealant 5 forms a seal between the acoustic device 2 and the first receiving groove, so that the space of the acoustic device 2 on the side of the first sound guide channel 10 is isolated from the outside of the first receiving groove, so that the functional end of the acoustic device 2 communicates only with the first sound guide channel 10. The functional end of the acoustic device 2 is a sound pickup portion or a sound emitting portion of the acoustic device 2. Therefore, it is possible to effectively prevent the noise outside the holding tank from affecting the accuracy of the acoustic device 2 in processing the sound signal.

In one embodiment of the present application, an electronic device is provided, as shown in fig. 2 and 3, which includes a middle frame 6 and the above-mentioned acoustic assembly; the middle frame 6 is provided with a second accommodating groove 61, and the acoustic assembly is positioned in the second accommodating groove 61; the middle frame 6 is provided with a second sound guide channel 60, and the first sound guide channel 10 is communicated with the outside of the equipment through the second sound guide channel 60, so that the first sound guide channel 10 is communicated with the outside of the equipment through the second sound guide channel 60.

In this embodiment, the acoustic assembly is disposed in the second receiving groove 61 and the first sound guiding channel 10 is communicated with the second sound guiding channel 60, so that the first sound guiding channel 10 is communicated with the outside of the apparatus, and the sound signal can pass through the second sound guiding channel 60 and the first sound guiding channel 10.

In the process of fitting the acoustic assembly to the second accommodation groove 61, it is only necessary to provide a seal structure for sealing at a position where the first sound-leading passage 10 communicates with the second sound-leading passage 60. The sealing structure is provided with only one sealing position, the sealing position is few, the leakage problem is not easy to occur, and the problems that the structure is complex and the leakage of the sealing position is easy to occur due to the fact that the sealing position is too much are effectively solved.

In one embodiment, the second receiving groove 61 has a third surface, the second sound guiding channel 60 includes a third channel port 601 and a fourth channel port 602, the third channel port 601 is located on the third surface, and the third channel port 601 is opposite to the second channel port 111. The second sound guiding channel 60 communicates with the first sound guiding channel 10, enabling sound signals to be transmitted between the acoustic device 2 and the exterior of the electronic apparatus.

In this embodiment, it is the first surface 11 that is opposite the third surface, such that the second opening 111 is opposite the third opening 601. Sealing structures are provided on the first surface 11 and the third surface so that the second port 111 communicates with the third port 601 to form a sound passage, and the sealing structures provide excellent sealing performance to the sound passage at a position where the second port 111 communicates with the third port 601. In the structure, a sealing structure is only needed to be arranged between the first surface 11 and the third surface at the position where the second channel opening 111 is communicated with the third channel opening 601, so that the position where the sealing structure is needed to be arranged is reduced, and the possibility of leakage is reduced. Effectively solved and need sealed position too much to cause the structure complicated, the problem that sealed position revealed appears easily.

In one embodiment, the electronic device further comprises a dust screen 7, the dust screen 7 is located between the first surface 11 and the third surface, and the dust screen 7 covers the second opening 111 and the third opening 601.

In this embodiment, the dust-proof net 7 is disposed between the first surface 11 and the third surface, so that part of the structure of the dust-proof net 7 is located between the second opening 111 and the third opening 601, so as to cover the second opening 111 and the third opening 601, thereby playing a role of dust-proof.

For example, the sealing glue is disposed on both sides of the dust screen 7, and the dust screen 7 is sandwiched between the first surface 11 and the third surface, so as to effectively seal the position where the dust screen 7 is disposed. The sealing strength is improved. The acoustic assembly in the electronic equipment only needs to be provided with the sealing structure at one position with the middle frame 6, the sealing structure is simple, and the leakage problem can be effectively reduced.

Optionally, a step portion 12 is provided on the bracket 1, and the step portion 12 overlaps with the notch of the second receiving groove 61 on the middle frame 6 to form a supporting function for the acoustic assembly.

For example, the third surface is a surface inclined such that the opening area of the second receiving groove 61 is larger than the bottom area, making it easier for the acoustic assembly to be disposed into the second receiving groove 61 during the assembly process.

Optionally, the inclination angles of the first surface 11 and the third surface are the same, and when the acoustic assembly is disposed in the second receiving groove 61, the first surface 11 and the third surface are abutted to each other, so as to support. And the inclination angles of the first surface 11 and the third surface are the same, so that the sealing between the first surface 11 and the third surface is easier.

For example, the bottom of the second receiving groove 61 is a hollow structure, the acoustic assembly is mounted in the second receiving groove 61, and the acoustic device 2 located in the first receiving groove is exposed to the hollow structure. The exposed acoustic device 2 communicates with the rear acoustic cavity of the electronic equipment.

A rear cover 8 is arranged outside the cavity of the rear sound cavity to protect the inner cavity. The rear cover 8 is mounted on part of the structure of the center frame 6 and protects the structure of the center frame 6.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An acoustic assembly comprising a support and an acoustic device;

the support is provided with a first accommodating groove and a first sound guide channel communicated with the first accommodating groove, the first sound guide channel comprises a first channel opening and a second channel opening, the first channel opening is positioned in the first accommodating groove, the second channel opening is positioned on the first surface of the support, and the second channel opening is used for being communicated with the outside of equipment;

2. The acoustic assembly of claim 1, wherein the first receiving groove is located on a second surface of the bracket, the first surface being adjacent to the second surface;

the first sound guide channel comprises a first sub-channel and a second sub-channel, the first sub-channel is communicated with the second sub-channel, the first sub-channel comprises a first channel opening, the second sub-channel comprises a second channel opening, the axis of the first sub-channel is perpendicular to the bottom surface of the first accommodating groove, and the axis of the second sub-channel is perpendicular to the first surface.

3. The acoustic assembly of claim 2, wherein the first sound conduction channel further comprises a third sub-channel, the first sub-channel communicating with the second sub-channel through the third sub-channel.

4. The acoustic assembly of claim 1, wherein the first sound conduction channel is an L-shaped channel, a U-shaped channel, or a V-shaped channel.

5. The acoustic assembly of claim 1, further comprising a flexible circuit board and a flexible circuit board support, wherein the flexible circuit board is disposed on the flexible circuit board support, wherein the flexible circuit board support is disposed within the first receiving cavity, and wherein the acoustic device is electrically connected to an external circuit via the flexible circuit board.

6. The acoustic assembly of claim 5, wherein the flexible circuit board support is located on a bottom surface of the first receiving groove, the flexible circuit board is located on a side away from the bottom surface of the first receiving groove, and the acoustic device is located on a side of the flexible circuit board away from the flexible circuit board support.

7. The acoustic assembly of claim 1, wherein the first receiving groove has a sealant disposed therein, the sealant being disposed between the acoustic device and the first receiving groove.

8. An electronic device comprising a bezel and the acoustic assembly of any of claims 1-7;

9. The electronic device of claim 8, wherein the second receiving groove has a third surface, the second sound guiding channel includes a third opening and a fourth opening, the third opening is located on the third surface, and the third opening is opposite to the second opening.

10. The electronic device of claim 9, further comprising a dust screen positioned between the first surface and the third surface, the dust screen covering the second opening and the third opening.