CN214544794U

CN214544794U - Microphone structure for acoustic sensitivity test

Info

Publication number: CN214544794U
Application number: CN202120660745.6U
Authority: CN
Inventors: 汪媚
Original assignee: Shenzhen Boyin Electroacoustic Technology Co ltd
Current assignee: Shenzhen Boyin Electroacoustic Technology Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-10-29
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a microphone structure for acoustic sensitivity test, which comprises a shell, a dust cover and a microphone, wherein a circuit board is fixedly arranged on the inner wall of the shell, a fixed plate is fixedly connected with the inner wall of the shell, a plurality of pins are fixedly connected with the lower surface of the circuit board, a bonding pad is fixedly connected with the lower surface of the fixed plate, adjusting rods are movably inserted on the two side surfaces of the bonding pad, a fixing ring is fixedly connected with the outer surface of the adjusting rod, a spring is fixedly connected between the fixing ring and the bonding pad, an arc-shaped fixture block is fixedly connected on the opposite side of the two adjusting rods, a current-conducting plate is fixedly connected with the upper surface of the microphone, the traditional connection mode can be replaced by the microphone structure, the connection between the pins and the circuit board is more stable, the pins are prevented from being broken to cause the microphone to be disassembled and replaced, and when the microphone needs to be replaced, the microphone can be conveniently disassembled and assembled by adjusting the position of the adjusting rod.

Description

Microphone structure for acoustic sensitivity test

Technical Field

The utility model relates to a microphone technical field specifically is a microphone structure is used in acoustic sensitivity test.

Background

The microphone is an energy conversion device that converts an audio signal into an electrical signal, and is a device (electrical → acoustic) that is directly opposite to the speaker. The microphone is an input and the loudspeaker is an output. Also known as microphone cores, microphones, most microphones are electret condenser microphones, which work on the principle of using a diaphragm of polymeric material with permanent charge isolation.

Present microphone miaow head adopts the mounting means that the bottom area was participated in mostly, the microphone miaow head of this kind of structure generally need be through manual operation welding, participate in with microphone miaow head bottom on the jack of pegging graft on the PCB board, then welded fastening, because microphone miaow head is very little, participating in also very thin of microphone miaow head bottom, lead to the not good operation of manual welding, and lead to the pin to appear the fracture easily, welding efficiency is low, the rejection rate is high, be unfavorable for automated production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an acoustic sensitivity test is with miaow head structure to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an acoustic sensitivity test is with miaow head structure, includes shell, dust cover and miaow head, the inner wall fixed mounting of shell has the circuit board, the inner wall fixedly connected with fixed plate of shell, a plurality of pins of the lower fixed surface of circuit board is connected with, the lower fixed surface of fixed plate connects the pad, the equal activity interlude of both sides face of pad has the regulation pole, two adjust the equal fixedly connected with arc fixture block in one side that the pole is relative, the last fixed surface of miaow head is connected with the current conducting plate.

Preferably, the lower surface of the dust cover is fixedly connected with two symmetrical pull lugs, and the outer surfaces of the pull lugs are provided with anti-skid grains.

Preferably, a plurality of through holes matched with the pins are formed in the lower surface of the fixing plate, the pin circular ring through holes extend to the lower surface of the fixing plate, conductive blocks are fixedly connected to the bottom ends of the pins, and the conductive blocks are located inside the bonding pads.

Preferably, two the equal fixedly connected with of one end that adjusts the pole back to back of the body draws the piece, the surface cover that draws the piece is equipped with insulating cover.

Preferably, the outer surface of the adjusting rod is fixedly connected with a fixing ring, and the fixing ring is fixedly connected with a spring between the welding pads.

Preferably, the lower surface of the pad is provided with an opening, the microphone extends to the inside of the pad through the opening, the two side surfaces of the conductive plate are provided with clamping grooves, and the clamping grooves are matched with the arc-shaped clamping blocks.

Preferably, both sides of the upper surface of the conductive plate are arranged in an arc shape.

Preferably, the inner wall of the housing is provided with an internal thread, the outer surface of the dust cover is provided with an external thread, and the dust cover is in threaded connection with the housing through the external thread and the internal thread.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses simple structure, through being provided with the fixed plate, the fixed plate separates into two regions with the pin, and one end welds with the circuit board, and one end welds with the pad, can replace traditional connected mode, makes the junction between pin and the circuit board more stable, prevents that the pin fracture from leading to needing to dismantle the change miaow head;

2. the utility model discloses a be provided with the regulation pole, when needs installation miaow head, insert inside the pad with the current conducting plate of miaow head upper surface, through setting the arc to the current conducting plate top, until extrude ARC block when the current conducting plate rebound, the spring is compressed this moment, when the current conducting plate removes to laminating with the current conducting block, through the elastic action of spring, extrude solid fixed ring, thereby make and adjust pole inward movement, thereby can drive ARC block and remove to the draw-in groove inside, can make the miaow head fix, during the dismantlement, the pulling draws the piece, it outwards removes to drive the regulation pole, make ARC block and draw-in groove separate, thereby can be convenient for dismantle the miaow head.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged schematic structural diagram of a in fig. 1 according to the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the microphone of the present invention.

In the figure: 1. a housing; 2. a dust cover; 3. a microphone; 4. pulling the lug; 5. a circuit board; 6. a fixing plate; 7. a pin; 8. a pad; 9. adjusting a rod; 10. pulling the block; 11. a fixing ring; 12. a spring; 13. an arc-shaped fixture block; 14. a conductive plate; 15. a card slot; 16. an opening; 17. and a conductive block.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides an acoustic sensitivity test is with miaow head structure, including shell 1, dust cover 2 and miaow head 3, the inner wall fixed mounting of shell 1 has circuit board 5, the inner wall fixedly connected with fixed plate 6 of shell 1, a plurality of pins 7 of the lower fixed surface of circuit board 5 are connected, the lower fixed surface of fixed plate 6 connects pad 8, the equal activity of both sides face of pad 8 alternates has the regulation pole 9, two adjust the equal fixedly connected with arc fixture block 13 in one side that pole 9 is relative, the last fixed surface of miaow head 3 is connected with current conducting plate 14.

Specifically, as shown in fig. 1 to 3, two symmetrical pull lugs 4 are fixedly connected to the lower surface of the dust cover 2, anti-slip lines are arranged on the outer surfaces of the pull lugs 4, and the dust cover 2 can be rotated conveniently through the two pull lugs 4, so that the dust cover 2 can be disassembled and assembled conveniently.

Specifically, as shown in fig. 1-3, a plurality of through holes matched with the pins 7 are formed in the lower surface of the fixing plate 6, the circular through holes of the pins 7 extend to the lower surface of the fixing plate 6, the bottom ends of the pins 7 are fixedly connected with conductive blocks 17, the conductive blocks 17 are located inside the bonding pads 8, and the connection positions of the pins 7 and the circuit board 5 can be more stable through the arrangement of the fixing plate 6.

Specifically, as shown in fig. 1 to 3, two ends of the adjusting rod 9 opposite to each other are fixedly connected with a pulling block 10, an insulating sleeve is sleeved on the outer surface of the pulling block 10, and the adjusting rod 9 can be pulled outwards conveniently through the pulling block 10.

Specifically, as shown in fig. 1 to 3, the outer surface of the adjusting rod 9 is fixedly connected with a fixing ring 11, a spring 12 is fixedly connected between the fixing ring 11 and the bonding pad 8, and the adjusting rod 9 can be driven to move towards the inside of the bonding pad 8 through the elasticity of the spring 12, so that the arc-shaped clamping block 13 can be driven to move inwards.

Specifically, as shown in fig. 1-3, opening 16 has been seted up to the lower surface of pad 8, and miaow head 3 extends to the inside of pad 8 through opening 16, and draw-in groove 15 has all been seted up to the both sides face of current conducting plate 14, and draw-in groove 15 and arc fixture block 13 looks adaptation cooperate through arc fixture block 13 and draw-in groove 15, can carry out spacing joint to draw-in groove 15 to can make miaow head 3 fix.

Specifically, as shown in fig. 1 to 3, two sides of the upper surface of the conductive plate 14 are arc-shaped, and the conductive plate 14 arranged in an arc shape can facilitate the mounting of the microphone 3.

Specifically, as shown in fig. 1 to 3, an inner wall of the housing 1 is provided with an internal thread, an outer surface of the dust cover 2 is provided with an external thread, the dust cover 2 is in threaded connection with the housing 1 through the external thread and the internal thread, and the dust cover 2 in threaded connection is convenient to disassemble and assemble, so that the maintenance function is achieved.

The working principle is as follows: when the utility model is used, the safety of the device is checked firstly, the fixed plate 6 is arranged to divide the pin 7 into two areas, one end of the pin is welded with the circuit board 5, the other end of the pin is welded with the welding disc 8, the traditional connection mode can be replaced, the connection between the pin 7 and the circuit board 5 is more stable, the pin 7 is prevented from being broken to cause the microphone 3 to be disassembled and replaced, the adjusting rod 9 is arranged, when the microphone 3 is required to be installed, the conductive plate 14 on the upper surface of the microphone 3 is inserted into the welding disc 8, the upper part of the conductive plate 14 is arranged into an arc shape, the arc-shaped clamping block 13 is extruded when the conductive plate 14 moves upwards, the spring 12 is compressed, when the conductive plate 14 moves to be attached with the conductive block 17, the fixing ring 11 is extruded through the elastic action of the spring 12, thereby the adjusting rod 9 moves inwards, thereby the arc-shaped clamping block 13 can be driven to move to the inside the clamping groove 15, can make miaow head 3 fix, during the dismantlement, the pulling draws piece 10, drives and adjusts pole 9 and outwards removes, makes ARC card block 13 and draw-in groove 15 separate to can be convenient for dismantle miaow head 3.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a miaow head structure is used in acoustic sensitivity test, includes shell (1), dust cover (2) and miaow head (3), its characterized in that: the inner wall fixed mounting of shell (1) has circuit board (5), the inner wall fixedly connected with fixed plate (6) of shell (1), a plurality of pins (7) of the lower fixed surface of circuit board (5), the lower fixed surface of fixed plate (6) connects pad (8), the equal activity interlude of both sides face of pad (8) has regulation pole (9), two adjust the equal fixedly connected with arc fixture block (13) in the relative one side of pole (9), the last fixed surface of miaow head (3) is connected with current conducting plate (14).

2. The microphone structure for testing acoustic sensitivity according to claim 1, wherein: the lower surface of the dust cover (2) is fixedly connected with two symmetrical pull lugs (4), and anti-skid grains are arranged on the outer surfaces of the pull lugs (4).

3. The microphone structure for testing acoustic sensitivity according to claim 1, wherein: the lower surface of fixed plate (6) is seted up with pin (7) assorted a plurality of through-holes, pin (7) ring through-hole extends to the lower surface of fixed plate (6), just the bottom fixedly connected with conducting block (17) of pin (7), conducting block (17) are located the inside of pad (8).

4. The microphone structure for testing acoustic sensitivity according to claim 1, wherein: two adjust the equal fixedly connected with in one end that pole (9) carried on the back mutually and draw piece (10), the surface cover that draws piece (10) is equipped with insulating cover.

5. The microphone structure for testing acoustic sensitivity according to claim 1, wherein: the outer fixed surface of adjusting pole (9) is connected with solid fixed ring (11), gu fixed ring (11) with fixedly connected with spring (12) between pad (8).

6. The microphone structure for testing acoustic sensitivity according to claim 1, wherein: opening (16) have been seted up to the lower surface of pad (8), miaow head (3) extend to the inside of pad (8) through opening (16), just draw-in groove (15) have all been seted up to the both sides face of current conducting plate (14), draw-in groove (15) with arc fixture block (13) looks adaptation.

7. The microphone structure for testing acoustic sensitivity according to claim 1, wherein: the two sides of the upper surface of the conductive plate (14) are arranged in an arc shape.

8. The microphone structure for testing acoustic sensitivity according to claim 1, wherein: the inner wall of shell (1) is provided with the internal thread, the surface of dust cover (2) is provided with the external screw thread, just dust cover (2) through external screw thread and internal thread with shell (1) threaded connection.