CN114554376A

CN114554376A - Microphone and electronic equipment

Info

Publication number: CN114554376A
Application number: CN202210311079.4A
Authority: CN
Inventors: 杨凯丽; 具子星
Original assignee: Qingdao Goertek Microelectronic Research Institute Co ltd
Current assignee: Qingdao Goertek Microelectronic Research Institute Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-05-27

Abstract

The invention provides a microphone and electronic equipment, wherein the microphone comprises a circuit board and a shell arranged on the circuit board, the circuit board and the shell are matched to form a containing cavity, an MEMS chip and an ASIC chip which are respectively connected with the circuit board are arranged in the containing cavity, the circuit board also comprises an extending end which is formed by extending out of the shell, a clamping position is formed on the extending end, and a pin connected with the circuit board is arranged on the clamping position, so that the microphone is clamped with an external circuit through the clamping position and is in signal connection with the external circuit through the pin. Through set up the joint position on stretching out the end, set up the pin on the joint position for back-end circuit passes through the joint position and microphone joint, and with pin signal connection, realizes the connection of pin and the transmission of signal. The microphone has the advantages of high assembly efficiency and no adverse effect on products and environment.

Description

Microphone and electronic equipment

Technical Field

The present invention relates to the field of microphones, and in particular, to a microphone and an electronic device.

Background

With the progress of society and the development of technology, in recent years, the volume of electronic products such as mobile phones and notebook computers is continuously reduced, and people have higher and higher performance requirements on the portable electronic products, so that the volume of electronic parts matched with the portable electronic products is continuously reduced, and the performance and consistency are continuously improved. Under such circumstances, many new products have been introduced in the field of microphone products, which are one of the important parts of the portable electronic products, and MEMS microphones are typical products among them. In the prior art, when the microphone is connected with the user terminal, a surface packaging technology is adopted for welding. However, the welding method wastes labor hours, and foreign matters such as soldering flux affect the product and pollute the environment.

Therefore, there is a need for a novel microphone and electronic device to solve or at least alleviate the above technical drawbacks.

Disclosure of Invention

The invention mainly aims to provide a microphone and electronic equipment, and aims to solve the technical problems that in the prior art, welding connection between the microphone and a client wastes working hours and influences the environment and products.

In order to achieve the above object, according to an aspect of the present invention, the present invention provides a microphone, including a circuit board and a housing installed on the circuit board, where the circuit board and the housing are matched to form an accommodating cavity, the accommodating cavity is provided with an MEMS chip and an ASIC chip respectively connected to the circuit board, the circuit board further includes an extending end extending out of the housing, the extending end is formed with a clamping position, and the clamping position is provided with a pin connected to the circuit board, so that the microphone is clamped to an external circuit through the clamping position and is connected to the external circuit through the pin by a signal.

In an embodiment, the protruding end includes a front surface, a back surface facing away from the front surface, and a side surface connecting the front surface and the back surface, the housing is disposed on a side of the protruding end facing the front surface, the clamping position is a clamping groove, the clamping groove is disposed on the side surface, and the pin is disposed in the clamping groove.

In an embodiment, the clamping groove comprises a bottom surface and two side walls respectively formed at two opposite sides of the bottom surface, the pin is connected to the bottom surface, the upper parts of the side walls are inwards recessed to form guide grooves, and the guide grooves are arranged at one side of the pin far away from the bottom surface.

In an embodiment, the number of the clamping grooves and the number of the pins are multiple, the clamping grooves are distributed at intervals on the extending end, and the clamping grooves and the pins are arranged in a one-to-one correspondence manner.

In an embodiment, the protruding end comprises a front surface, a back surface facing the front surface and a side surface connecting the front surface and the back surface, the housing is disposed near one side of the front surface, the clamping position comprises a first clamping groove and a second clamping groove, the first clamping groove is disposed on the front surface, the second clamping groove is disposed on the back surface, a first pin is disposed in the first clamping groove, and a second pin is disposed in the second clamping groove.

In an embodiment, one end of the first clamping groove extends to one side of the extending end, which is far away from the shell, and the first clamping groove penetrates through the edge of the extending end, and the position of the second clamping groove corresponds to the position of the first clamping groove.

In an embodiment, the number of the first clamping grooves and the number of the second clamping grooves are multiple, one first pin is arranged in each first clamping groove, one second pin is arranged in each second clamping groove, and the first clamping grooves and the second clamping grooves are arranged in a one-to-one correspondence manner; the first clamping grooves and the second clamping grooves are arranged in a one-to-one correspondence mode, or the first clamping grooves and the second clamping grooves are arranged in a staggered mode along the extending direction of the extending end.

In one embodiment, the first clamping groove comprises a first bottom surface and two first side walls formed on two sides of the bottom surface, the first side wall portions are recessed inwards to form first guide grooves, and the first guide grooves are arranged on one sides of the first pins far away from the first bottom surface; the second clamping groove comprises a second bottom surface and two second side walls formed on two sides of the bottom surface, the second side wall portions are inwards sunken to form second guide grooves, and the second guide grooves are formed in one sides, far away from the second bottom surface, of the second pins.

In an embodiment, the joint position is including connecting the platform, connect one side of platform install in the circuit board, it is provided with to connect one side that the platform kept away from the circuit board the pin, the pin protrusion the surface setting of connecting the platform, the pin is used for the flexible circuit board joint of external circuit.

In an embodiment, a positioning abutting part is arranged at the top corner of the connecting table and used for abutting against the flexible circuit board to play a positioning role.

In one embodiment, the microphone further comprises a sound hole, and the sound hole is arranged on the circuit board or the shell.

According to another aspect of the present invention, the present invention further provides an electronic device, which includes the microphone described above.

In the above scheme, the microphone includes the circuit board and installs in the shell of circuit board, and the circuit board is formed with the shell cooperation and holds the chamber, holds the intracavity and is provided with MEMS chip and the ASIC chip be connected with the circuit board respectively, and the circuit board is still including stretching out the end that stretches out that the shell formed, stretches out to be formed with the joint position on holding, is provided with the pin of being connected with the circuit board on the joint position to make the microphone pass through joint position and external circuit joint, and pass through pin and external circuit signal connection. The extending end is provided with the clamping position, and the clamping position is provided with the pin, so that the rear end circuit (the rear end can refer to a user end) is connected with the pin through the clamping position and the microphone in a signal mode, connection of the pin and transmission of signals are achieved, and the signals can be communication signals or electric signals. Compared with the prior art that welding is adopted, the invention improves the working efficiency of assembly in a clamping mode, is environment-friendly and cannot influence products due to soldering flux. The invention has the advantages of high assembly efficiency and no adverse effect on products and environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is also possible for those skilled in the art to obtain other drawings based on the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a microphone according to an embodiment of the present invention (a clip groove is disposed on a side surface of an extending end);

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view of FIG. 1 from a certain perspective;

fig. 4 is a schematic perspective view of a microphone according to another embodiment of the present invention (the first engaging groove and the second engaging groove are respectively disposed on the front and the back of the protruding end);

fig. 5 is another schematic perspective view of a microphone according to another embodiment of the invention (the first engaging groove and the second engaging groove are respectively disposed on the front and the back of the extending end);

FIG. 6 is a schematic view of FIG. 4 from a certain perspective;

FIG. 7 is an enlarged view of FIG. 6 at B;

FIG. 8 is an enlarged view of FIG. 6 at C;

fig. 9 is a schematic perspective view of a microphone according to another embodiment of the present invention (provided with a connecting platform);

fig. 10 is a schematic structural view of a connection platform, a pin and a positioning abutment member according to still another embodiment of the invention.

The reference numbers illustrate:

1. a circuit board; 2. a housing; 3. a sound hole; 4. an extension end; 41. a front side; 42. a back side; 43. a side surface; 5. a pin; 6. a clamping groove; 61. a bottom surface; 62. a side wall; 63. a guide groove; 7. a first clamping groove; 71. a first bottom surface; 72. a first side wall; 73. a first guide groove; 8. a second clamping groove; 81. a second bottom surface; 82. a second side wall; 83. a second guide groove; 9. a first pin; 10. a second pin; 11. a connecting table; 12. the abutment is positioned.

The implementation, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that all the directional indicators (such as the upper and lower … …) in the embodiment of the present invention are only used to explain the relative position relationship, movement, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1 to 10, according to an aspect of the present invention, the present invention provides a microphone, including a circuit board 1 and a housing 2 mounted on the circuit board 1, wherein the circuit board 1 and the housing 2 are matched to form a receiving cavity, and a MEMS chip and an ASIC chip respectively connected to the circuit board 1 are disposed in the receiving cavity, the circuit board 1 further includes a protruding end 4 formed by extending out of the housing 2, a clamping position is formed on the protruding end 4, and a pin 5 connected to the circuit board 1 is disposed on the clamping position, so that the microphone is clamped to an external circuit through the clamping position and is in signal connection with the external circuit through the pin 5.

In the above embodiment, the circuit board 1 may be a printed circuit board, and the MEMS chip and the ASIC chip in the accommodating cavity are connected by gold wires. The extending end 4 is provided with a clamping position, and the clamping position is provided with the pin 5, so that the rear end circuit (the rear end can refer to a user end) is clamped with the microphone through the clamping position, and meanwhile, the rear end circuit is in signal connection with the pin 5, the connection of the pin 5 and the transmission of signals are realized, and the signals can be communication signals or electric signals. Compared with the prior art that the microphone and the rear-end circuit are connected in a welding mode, the microphone and the rear-end circuit are connected in a clamping mode, the assembling efficiency is improved, the microphone and the rear-end circuit are environment-friendly, and the product cannot be affected by soldering flux. The embodiment has the advantages of high assembly efficiency and no adverse effect on products and environment.

Referring to fig. 1-3, according to an embodiment of the present invention, the protruding end 4 includes a front surface 41, a back surface 42 opposite to the front surface 41, and a side surface 43 connecting the front surface 41 and the back surface 42, the housing 2 is disposed on a side of the protruding end 4 facing the front surface 41, the clamping position is a clamping groove 6, the clamping groove 6 is disposed on the side surface 43, and the pin 5 is disposed in the clamping groove 6. Through set up joint groove 6 on the side 43 that stretches out end 4 or circuit board 1, set up pin 5 in joint groove 6, when joint groove 6 and external circuit joint, pin 5 can be connected with the electric contact of external circuit, can detain the connection of dismantling cell-phone battery and mainboard circuit similar to old-fashioned, adopt this kind of connected mode, can realize the quick installation and the change of microphone, improved the installation effectiveness, reduced the maintenance cost.

Referring to fig. 2, in an embodiment, the clamping groove 6 includes a bottom surface 61 and two side walls 62 respectively formed at two opposite sides of the bottom surface 61, the pin 5 is connected to the bottom surface 61, upper portions of the side walls 62 are recessed inward to form a guide groove 63, and the guide groove 63 is disposed at a side of the pin 5 away from the bottom surface 61. Here, the side wall 62 is provided with a guide groove 63, the central axis direction of the guide groove 63 is perpendicular to the bottom surface 61, the corresponding rear end circuit can be provided with a corresponding protruding end to slide in the guide groove 63, the guide groove 63 can be used for realizing guiding and positioning functions, so that the rear end circuit can be conveniently inserted into the clamping groove 6 to be in signal connection with the pin 5, and the positioning function of the guide groove 63 can be used for ensuring that the rear end circuit is in full-face contact with the pin 5 instead of only contacting a part of the pin 5.

Referring to fig. 1-3 again, in an embodiment, the number of the clamping grooves 6 and the number of the pins 5 are multiple, the clamping grooves 6 are distributed at intervals on the protruding end 4, and the clamping grooves 6 and the pins 5 are arranged in a one-to-one correspondence manner. Specifically, as shown in fig. 1, the number of the catching grooves 6 may be five. Those skilled in the art can understand that the number of the clamping slots 6 can be set according to actual needs, and only the pins 5 need to be arranged in each clamping slot 6.

Referring to fig. 4 to 8, according to another embodiment of the present invention, the protruding end 4 includes a front surface 41, a back surface 42 opposite to the front surface 41, and a side surface 43 connecting the front surface 41 and the back surface 42, the housing 2 is disposed at a side near the front surface 41, the clamping position includes a first clamping groove 7 and a second clamping groove 8, the first clamping groove 7 is disposed at the front surface 41, the second clamping groove 8 is disposed at the back surface 42, the first clamping groove 7 is disposed with the first pin 9 therein, and the second clamping groove 8 is disposed with the second pin 10 therein. The front surface 41 and the back surface 42 of the extending end 4 are respectively provided with the first clamping groove 7 and the second clamping groove 8, and the two sides of the extending end 4 are clamped with the rear end circuit, so that the clamping firmness can be improved, and different rear end circuit requirements can be met.

Referring to fig. 4 and 5 again, in an embodiment, one end of the first engaging groove 7 extends to a side of the extending end 4 away from the housing 2 and is disposed through an edge of the extending end 4, and the position of the second engaging groove 8 corresponds to the position of the first engaging groove 7. First joint groove 7 and second joint groove 8 all stretch out to the edge that stretches out end 4, and the plug connector of back-end circuit can be directly followed the edge that stretches out end 4 and pegged graft to first joint groove 7 and second joint groove 8 like this, simple to operate and the fastness is more. Specifically, the number of the first clamping grooves 7 and the number of the second clamping grooves 8 are multiple, each first clamping groove 7 is internally provided with a first pin 9, each second clamping groove 8 is internally provided with a second pin 10, and the first clamping grooves 7 and the second clamping grooves 8 are arranged in a one-to-one correspondence manner. Of course, referring to fig. 6, the first catching grooves 7 and the second catching grooves 8 may also be alternately arranged along the extending direction of the protruding end 4.

Referring to fig. 6-8, in an embodiment, the first clamping groove 7 includes a first bottom surface 71 and two first side walls 72 formed at two sides of the bottom surface, a first guide groove 73 is formed in a portion of the first side wall 72, and the first guide groove 73 is disposed at a side of the first pin 9 away from the first bottom surface 71; the second clamping groove 8 includes a second bottom surface 81 and two second side walls 82 formed on two sides of the bottom surface, a second guide groove 83 is formed in a portion of the second side wall 82, and the second guide groove 83 is disposed on one side of the second pin 10 away from the second bottom surface 81. Here, the first guide groove 73 and the second guide groove 83 each extend from the direction of the notch toward the bottom surface, so that the external plug connector can be inserted into the guide grooves along the first guide groove 73 and the second guide groove 83, and the first guide groove 73 and the second guide groove 83 act on the above-mentioned guide, and the function of the guide 63 is similar, and both the guide and positioning functions are performed.

Referring to fig. 9 and 10, according to another embodiment of the present invention, the clamping position includes a connection platform 11, one side of the connection platform 11 is mounted on the circuit board 1, one side of the connection platform 11 away from the circuit board 1 is provided with pins 5, the pins 5 are protruded from the surface of the connection platform 11, and the pins 5 are used for clamping a flexible circuit board of an external circuit. This embodiment is different from the two previous embodiments in that the pins 5 are exposed to the connecting platform 11, and the connecting buckles on the flexible circuit board through the external circuit are clamped with the pins 5. The microphone does not need to be provided with concave clamping grooves (the clamping groove 6, the first clamping groove 7 or the second clamping groove 8) on the circuit board 1, and the manufacturing mode of the microphone is simpler.

Referring to fig. 10, in an embodiment, a positioning abutment 12 is provided at a top corner of the connection table 11, and the positioning abutment 12 is used for abutting against the flexible circuit board for positioning. Because at flexible circuit board and 5 joints of pin, the inconvenient direct observation connector link of people and the counterpoint condition of pin 5, consequently set up and to set up location butt piece 12, when the butt end of flexible circuit board and the 12 butts of location butt piece, connector link and pin 5 just one-to-one connection this moment. This embodiment improves the mounting efficiency and the accuracy of the connection.

Referring to fig. 5, in an embodiment, the microphone further includes a sound hole 3, and the sound hole 3 is disposed on the circuit board 1 or the housing 2. Specifically, if the sound hole 3 is disposed on the circuit board 1, it should be disposed at a position of the circuit board 1 corresponding to the housing.

According to another aspect of the present invention, the present invention also provides an electronic device, which includes the microphone described above. Since the electronic device includes all technical solutions of all embodiments of all the microphones, at least all beneficial effects brought by all the technical solutions are achieved, and no further description is given here.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the claims and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a microphone, its characterized in that, microphone include the circuit board with install in the shell of circuit board, the circuit board with the shell cooperation is formed with and holds the chamber, hold the intracavity be provided with respectively with MEMS chip and ASIC chip that the circuit board is connected, the circuit board is still including stretching out the end that stretches out that the shell formed, it is formed with the joint position to stretch out to serve, be provided with on the joint position with the pin that the circuit board is connected, so that the microphone passes through joint position and external circuit joint, and pass through the pin with external circuit signal connects.

2. The microphone of claim 1, wherein the protruding end comprises a front surface, a back surface facing away from the front surface, and a side surface connecting the front surface and the back surface, the housing is disposed on a side of the protruding end facing the front surface, the clamping position is a clamping groove disposed on the side surface, and the pin is disposed in the clamping groove.

3. The microphone of claim 2, wherein the clip groove comprises a bottom surface and two side walls respectively forming two opposite sides of the bottom surface, the pin is connected to the bottom surface, the upper portion of the side walls is recessed inward to form a guiding groove, and the guiding groove is disposed on a side of the pin away from the bottom surface.

4. The microphone of claim 2, wherein the number of the clip grooves and the number of the pins are multiple, the clip grooves are distributed at intervals on the protruding end, and the clip grooves and the pins are arranged in a one-to-one correspondence.

5. The microphone of claim 1, wherein the protruding end comprises a front surface, a back surface facing away from the front surface, and a side surface connecting the front surface and the back surface, the housing is disposed on a side close to the front surface, the clamping position comprises a first clamping groove and a second clamping groove, the first clamping groove is disposed on the front surface, the second clamping groove is disposed on the back surface, a first pin is disposed in the first clamping groove, and a second pin is disposed in the second clamping groove.

6. The microphone of claim 5, wherein one end of the first clamping groove extends to one side of the extending end, which is far away from the shell, and the edge of the extending end is penetrated, and the position of the second clamping groove corresponds to the position of the first clamping groove.

7. The microphone of claim 5, wherein the number of the first and second clip grooves is plural, one first pin is disposed in each first clip groove, and one second pin is disposed in each second clip groove;

the first clamping grooves and the second clamping grooves are arranged in a one-to-one correspondence mode, or the first clamping grooves and the second clamping grooves are arranged in a staggered mode along the extending direction of the extending end.

8. The microphone of claim 5, wherein the first clip groove comprises a first bottom surface and two first side walls formed on two sides of the bottom surface, the first side wall is recessed inward to form a first guide groove, and the first guide groove is disposed on a side of the first pin away from the first bottom surface; the second clamping groove comprises a second bottom surface and two second side walls formed on two sides of the bottom surface, the second side wall portions are inwards sunken to form second guide grooves, and the second guide grooves are formed in one sides, far away from the second bottom surface, of the second pins.

9. The microphone of claim 1, wherein the clamping position comprises a connecting table, one side of the connecting table is mounted on the circuit board, one side of the connecting table, which is far away from the circuit board, is provided with the pin, the pin protrudes out of the surface of the connecting table, and the pin is used for clamping a flexible circuit board of the external circuit.

10. The microphone of claim 9, wherein a positioning abutting piece is arranged at the top corner of the connecting platform and is used for abutting against the flexible circuit board for positioning.

11. The microphone according to any one of claims 1 to 10, further comprising a sound hole provided on the circuit board or the case.

12. An electronic device, characterized in that the electronic device comprises a sensor according to any of claims 1-11.