CN216524245U - Low-cost simple microphone - Google Patents
Low-cost simple microphone Download PDFInfo
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- CN216524245U CN216524245U CN202122859842.0U CN202122859842U CN216524245U CN 216524245 U CN216524245 U CN 216524245U CN 202122859842 U CN202122859842 U CN 202122859842U CN 216524245 U CN216524245 U CN 216524245U
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- microphone
- printed board
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- assembly
- capacitor
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Abstract
The utility model discloses a low-cost simple microphone, which comprises a printed board (1) of the microphone, wherein the printed board (1) is provided with a group of pin holes (2); contact pins (4) of a group of double-capacitor microphone (3) which are uniformly distributed in a matrix mode penetrate through contact pin holes (2) on a printed board (1) to be welded with bonding pads (5) on the back of the printed board (1), and all the double-capacitor microphone (3) are connected in parallel through connecting circuits (6) on the back of the printed board (1) and then led out through leads (7). According to the microphone assembly, the microphone manufacturing mode is improved, the dual-capacitor microphone is only required to be welded according to the matrix array during assembly, and no component needs to be adjusted, so that the installation requirement and the assembly and debugging difficulty are reduced, the installation efficiency and the assembly consistency are improved, and the problem of difficulty in field installation and debugging is solved.
Description
Technical Field
The utility model relates to a low-cost simple microphone, and belongs to the technical field of capture application of sound signals.
Background
The liquid level in the oil field test oil well casing pipe annulus mostly adopts the liquid level tester, and the liquid level signal that this kind of tester adopted needs to use sound pickup apparatus, and the device adopts the microphone under most circumstances. The microphone manufactured by the method has high sensitivity under certain casing pressure gas pressure, but has very low sensitivity under the non-pressure condition, even has no reaction, has large difference of output capacitance under the same casing pressure gas pressure, is hidden danger for later application, is difficult to debug and qualified in the debugging process of field non-well killing, and increases the debugging time, thereby influencing the conventional test of the oil field liquid level tester in the non-pressure well.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-cost simple microphone to overcome the problem that the conventional test of an oil field liquid level tester in a pressureless well is influenced due to low sensitivity of a ceramic capacitor and an externally packaged rubber microphone under the pressureless condition.
The technical scheme of the utility model is as follows:
the utility model discloses a low-cost simple microphone, which comprises a printed board of the microphone, wherein the printed board is provided with a group of pin holes; and the contact pins of a group of double-capacitor microphone uniformly distributed in a matrix mode penetrate through the contact pin holes on the printed board to be welded with the bonding pads on the back of the printed board, and all the double-capacitor microphone are connected in parallel through the connecting circuit on the back of the printed board and then led out through the lead.
In the low-cost simple microphone, the front surface and the back surface of the printed board are both provided with silicon rubber; through holes corresponding to the double-capacitor microphone are formed in the silicon rubber on the front side of the printed board; the silicon rubber on the back of the printed board covers the back of the whole printed board.
Compared with the prior art, the microphone assembly has the advantages that by improving the manufacturing mode of the microphone, the microphone assembly only needs to weld the double-capacitor microphone according to the matrix array during assembly, and no element needs to be adjusted, so that the installation requirement and the assembly and debugging difficulty are reduced, the installation efficiency and the assembly consistency are improved, and the problem of difficulty in field installation and debugging is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the back surface of the printed board of the present invention;
fig. 3 is an exploded schematic view of the present invention.
The labels in the figure are: 1-printed board, 2-pin hole, 3-double-capacitor microphone, 4-pin, 5-pad, 6-connecting circuit, 7-lead, 8-silicon rubber and 9-through hole.
Detailed Description
The utility model is described in further detail below with reference to the following figures and examples, but without any limitation thereto.
The utility model discloses a low-cost simple microphone, which is shown in figures 1 to 3: the printed board 1 comprising existing microphone, while making, there are a series of pin holes 2 on the printed board 1; the contact pins 4 of a group of double-capacitor microphone 3 uniformly distributed in a matrix mode penetrate through the contact pin holes 2 on the printed board 1 to be welded with the bonding pads 5 on the back of the printed board 1, and all the double-capacitor microphone 3 are connected in parallel through the connecting circuit 6 on the back of the printed board 1 and then led out through the lead 7. The front and the back of the printed board 1 are both provided with silicon rubber 8; a through hole 9 corresponding to the dual-capacitor microphone 3 is formed in the silicon rubber on the front surface of the printed board 1; the silicon rubber on the back of the printed board 1 covers the whole back of the printed board 1.
The following is a detailed description of the utility model:
in the specific implementation of the utility model, as shown in fig. 1 and 2, the dual-capacitor microphone 3 is only required to be welded according to a matrix array, and then the silicone rubber 8 is respectively stuck on the front surface and the back surface of the printed board 1 to form the microphone together.
In the utility model, the dual-capacitor microphone has the function that the capacitance value can be changed correspondingly with the intensity of sound. The printed board has the functions of welding and fixing the double-capacitor microphone. The silicon rubber has the functions of adhering the double-capacitor microphone and ensuring that the bonding pad is not exposed and insulated.
The low-cost simple microphone is simple and convenient to manufacture, and is convenient to install in a factory and debug on site. The microphone ingeniously utilizes the position determinacy of the matrix array and the bonding pad to ensure the assembly consistency of the double-capacitor microphone at the later stage, the welding distance adjustment requirement is not required, and no component needs to be adjusted, so that the installation requirement and the assembly and debugging difficulty are reduced, and the problems of welding difficulty and field debugging difficulty are well solved.
Claims (2)
1. The utility model provides a simple and easy microphone of low cost, includes printing board (1) of microphone, its characterized in that: a group of pin holes (2) are arranged on the printed board (1); contact pins (4) of a group of double-capacitor microphone (3) which are uniformly distributed in a matrix mode penetrate through contact pin holes (2) on a printed board (1) to be welded with bonding pads (5) on the back of the printed board (1), and all the double-capacitor microphone (3) are connected in parallel through connecting circuits (6) on the back of the printed board (1) and then led out through leads (7).
2. The low cost simple microphone of claim 1, wherein: the front and the back of the printed board (1) are provided with silicon rubber (8); a through hole (9) corresponding to the double-capacitor microphone (3) is arranged on the silicon rubber on the front surface of the printed board (1); the silicon rubber on the back of the printed board (1) covers the back of the whole printed board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122859842.0U CN216524245U (en) | 2021-11-19 | 2021-11-19 | Low-cost simple microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122859842.0U CN216524245U (en) | 2021-11-19 | 2021-11-19 | Low-cost simple microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216524245U true CN216524245U (en) | 2022-05-13 |
Family
ID=81533219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122859842.0U Active CN216524245U (en) | 2021-11-19 | 2021-11-19 | Low-cost simple microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216524245U (en) |
-
2021
- 2021-11-19 CN CN202122859842.0U patent/CN216524245U/en active Active
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| GR01 | Patent grant | ||
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