Waterproof MEMS recording microphone

Abstract

The utility model discloses a waterproof MEMS recording microphone, which comprises a bottom plate, first side plates symmetrically arranged at the two ends above the bottom plate, a top plate arranged above the two first side plates, second side plates arranged on the side surfaces of the two first side plates, third side plates arranged on the sides, far away from the second side plates, of the two first side plates, and clamps arranged on the side surfaces of the third side plates. A first filter screen is arranged in the middle of the bottom plate, a first air cylinder is arranged above the first filter screen, a sealing plate is arranged above the first air cylinder, a funnel is arranged above the sealing plate, a voice collector is arranged above the funnel, a battery is arranged on the side face of the voice collector, and a charging interface is formed in the surface of the first side plate close to one side of the battery in a penetrating mode. A first long plate is arranged on one side, close to the third side plate, of the second side plate; according to the utility model, the waterproof effect can be effectively realized during use.

Description

Technical Field

[0001] The utility model belongs to the technical field of microphones, and in particular relates to a waterproof MEMS recording microphone. Background Art

[0002] Microphone, scientifically known as microphone, is translated from the English word microphone. It is also called microphone or micro-phone. Microphone is an energy conversion device that converts sound signals into electrical signals. It is classified into dynamic type, capacitor type, electret type and the recently emerging silicon micro-microphone. In addition, there are liquid microphones and laser microphones. Most microphones are electret capacitor microphones, which work on the principle of using a polymer material vibration membrane with permanent charge isolation.

[0003] Most existing MEMS recording microphones are fixed with clips. When they accidentally fall into water or get caught in the rain, they cannot be effectively waterproofed, which will damage the microphone. There is also no way to dry the inside of the microphone in time when water enters. Long-term internal moisture will cause further damage to the microphone. Utility Model Content

[0004] The purpose of the utility model is to provide a waterproof MEMS recording microphone in order to solve the problem that the existing microphone cannot be effectively waterproof.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: comprising a bottom plate, wherein first side plates are symmetrically arranged at both ends above the bottom plate, a top plate is arranged above the two first side plates, second side plates are arranged on the sides of the two first side plates, third side plates are arranged on the sides of the two first side plates away from the second side plates, a clip is arranged on the side of the third side plate, a first filter is arranged in the middle of the bottom plate, a first cylinder is arranged above the first filter, a closing plate is arranged above the first cylinder, a funnel is arranged above the closing plate, a voice collector is arranged above the funnel, a battery is arranged on the side of the voice collector, a charging interface is arranged through the surface of the first side plate near the battery, a first long plate is arranged on the side of the second side plate near the third side plate, a first lifting plate is arranged on the side of the first long plate, a fixing groove is arranged on the lower surface of the first lifting plate, a second cylinder is arranged above the first lifting plate, a water-absorbing sponge is arranged below the first long plate, a second long plate is arranged below the water-absorbing sponge, a second lifting plate is arranged on the side of the second long plate, a third cylinder is arranged below the second lifting plate, a second filter is arranged on the surface of the second side plate, and fixing devices are arranged at four corners of the second filter.

[0006] Furthermore, the water-absorbing sponge includes a sponge body, movable grooves are provided at four corners of the sponge body, a placement groove is provided on one side of the sponge body, and a humidity sensor is provided inside the placement groove.

[0007] Furthermore, the fixing device comprises a threaded column, a fixing column is provided on the side of the threaded column, and a nut is provided on the outer surface of the threaded column.

[0008] Furthermore, the sponge body is consistent in length and width with the second filter screen, the fixing column and the threaded column are both located inside the placement groove near one end of the fixing column, the sum of the length of the fixing column and the diameter of the threaded column is less than the length of the placement groove, the threaded column is located inside the hole of the second filter screen and the two are movably connected.

[0009] Furthermore, the second filter is fixedly connected to the water-absorbing sponge, the first cylinder is fixedly connected to the first filter, the second filter is movably connected to the second side plate, and the first long plate and the second long plate are both fixedly connected to the second side plate.

[0010] Furthermore, the first long plate is closely connected to the first lifting plate and the two are movably connected, the second long plate is closely connected to the second lifting plate and the two are movably connected, and the second lifting plate is located directly below the fixing groove and the two are of the same size.

[0011] Furthermore, the second cylinder is fixedly connected to the top plate, the third cylinder is fixedly connected to the bottom plate, the voice collector is fixedly connected to the third side plate, and the battery is connected to the charging port.

[0012] Furthermore, the funnel is in the shape of a flat-top pyramid, the upper part of the funnel is tightly connected to the second lifting plate, the third side plate, and the two first side plates, and the lower part of the funnel is tightly connected to the closing plate and the two are movably connected.

[0013] Furthermore, the length of the first long board is consistent with the distance between the two second side boards, and the lengths of the first long board, the second long board, the first lifting board and the second lifting board are consistent.

[0014] Beneficial effects: The utility model has reasonable design and has the following beneficial effects:

[0015] 1. When the humidity sensor senses that the moisture exceeds the normal value, the second cylinder and the third cylinder will drive the first lifting plate and the second lifting plate to move, so that the second lifting plate enters the fixed groove below the first lifting plate. There will be no gap between the two lifting plates and the two long plates when they are connected. Then put the recording microphone straight. At the same time, the first cylinder will drive the closing plate to move downward and separate from the funnel. In this way, if water enters, it can be discharged through the funnel with the first filter. In this way, when the microphone encounters water, the interior can automatically close to isolate the voice collector from water, and water will not flow further to the voice collector, which can further protect the voice collector and avoid damage;

[0016] 2. Rotate the threaded column to move the fixed column to the inside of the placement slot so that the second filter and the absorbent sponge can be removed for cleaning and drying. Then drain the water inside through the holes left after the second filter is removed. Then separate the two lifting plates and dry the inside with hot air or other methods. Drying the inside with hot air or other methods can further reduce damage to the recording microphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a right side cross-sectional view of the utility model;

[0019] Figure 3 It is the left view of the utility model;

[0020] Figure 4 This is a front cross-sectional view of the utility model;

[0021] Figure 5 It is an exploded view of some parts of the utility model.

[0022] In the figure: 1-bottom plate, 2-first side plate, 3-top plate, 4-second side plate, 5-third side plate, 6-clip, 7-first filter screen, 8-first cylinder, 9-closing plate, 10-funnel, 11-speech collector, 12-battery, 13-speech collector, 14-first long plate, 15-first lifting plate, 16-fixing groove, 17-second cylinder, 18-water-absorbing sponge, 19-second long plate, 20-second lifting plate, 21-third cylinder, 22-second filter screen, 23-fixing device;

[0023] 181-sponge body, 182-movable slot, 183-placing slot, 184-humidity sensor, 231-threaded column, 232-fixed column, 233-nut. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Combination Figures 1 to 5 A waterproof MEMS recording microphone is shown, comprising a bottom plate 1, first side plates 2 are symmetrically arranged at both ends above the bottom plate 1, a top plate 3 is arranged above the two first side plates 2, second side plates 4 are arranged on the sides of the two first side plates 2, a third side plate 5 is arranged on the side of the two first side plates 2 away from the second side plates 4, a clip 6 is arranged on the side of the third side plate 5, a first filter screen 7 is arranged in the middle of the bottom plate 1, a first cylinder 8 is arranged above the first filter screen 7, a closing plate 9 is arranged above the first cylinder 8, a funnel 10 is arranged above the closing plate 9, a voice collector 11 is arranged above the funnel 10, a battery 12 is arranged on the side of the voice collector 11, and a battery 12 is arranged near the battery 12 A charging port 13 is provided through the surface of the first side panel 2 on one side, a first long plate 14 is provided on the side of the second side panel 4 close to the third side panel 5, a first lifting plate 15 is provided on the side of the first long plate 14, a fixing groove 16 is provided on the lower surface of the first lifting plate 15, a second cylinder 17 is provided above the first lifting plate 15, a water-absorbing sponge 18 is provided below the first long plate 14, a second long plate 19 is provided below the water-absorbing sponge 18, a second lifting plate 20 is provided on the side of the second long plate 19, a third cylinder 21 is provided below the second lifting plate 20, a second filter screen 22 is provided on the surface of the second side panel 4, and fixing devices 23 are provided at four corners of the second filter screen 22.

[0026] Among them, the water-absorbing sponge 18 includes a sponge body 181, and movable grooves 182 are provided at the four corners of the sponge body 181. A placement groove 183 is provided on one side of the sponge body 181. A humidity sensor 184 is provided inside the placement groove 183. The humidity sensor can sense water ingress. When water ingress is sensed, the two lifting plates can be controlled to close to prevent internal water from damaging the recorder.

[0027] The fixing device 23 includes a threaded column 231, a fixing column 232 is provided on the side of the threaded column 231, and a nut 233 is provided on the outer surface of the threaded column 231. The second filter screen and the absorbent sponge 18 can be disassembled and installed through the fixing device 23, so that they can be disassembled and dried after water ingress, and can be installed again for use after drying.

[0028] The sponge body 181 is consistent in length and width with the second filter screen 22; the fixing column 232 and the end of the threaded column 231 close to the fixing column 232 are both located inside the placement groove 183; the sum of the length of the fixing column 232 and the diameter of the threaded column 231 is less than the length of the placement groove 183; the threaded column 231 is located inside the hole of the second filter screen 22 and the two are movably connected; the first filter screen can be fixed and moved by rotating the threaded column to drive the fixing column 232 to rotate.

[0029] The second filter screen 22 is fixedly connected to the water-absorbing sponge 18, the first cylinder 8 is fixedly connected to the first filter screen 7, the second filter screen 22 is movably connected to the second side plate 4, the first long plate 14 and the second long plate 19 are both fixedly connected to the second side plate 4; the first long plate 14 is closely connected to the first lifting plate 15 and the two are movably connected, the second long plate 19 is closely connected to the second lifting plate 20 and the two are movably connected, the second lifting plate 20 is located directly below the fixed groove 16 and the two are of the same size, and the two lifting plates are closed and matched with the two long plates so that when water enters, the water will not flow further to the voice collector 11, which can further protect the voice collector 11 from damage.

[0030] The second cylinder 17 is fixedly connected to the top plate 3, the third cylinder 21 is fixedly connected to the bottom plate 1, the voice collector 11 is fixedly connected to the third side plate 5, and the battery 12 is connected to the charging port 13; the funnel 10 is in the shape of a flat-topped pyramid, and the upper part of the funnel 10 is tightly connected to the second lifting plate 20, the third side plate 5, and the two first side plates 2, and the lower part of the funnel 10 is tightly connected to the closing plate 9 and the two are movably connected. When the recording microphone is flooded, the funnel 10 can be placed upright to collect the incoming water and discharge it through the first filter screen, and the interior can be dried by hot air drying or other methods, which can further reduce the damage to the recording microphone.

[0031] The length of the first long board 14 is consistent with the distance between the two second side boards 4, and the lengths of the first long board, the second long board, the first lifting board 15 and the second lifting board 20 are consistent, so that the lifting board and the long board can be closely connected when closed, reducing the possibility of water ingress.

[0032] Working principle: When the humidity sensor 184 senses that the moisture exceeds the normal value during use, the second cylinder 17 and the third cylinder 21 will drive the first lifting plate 15 and the second lifting plate 20 to move, so that the second lifting plate 20 enters the fixing groove 16 below the first lifting plate 15. When the two lifting plates are connected, there will be no gap between the two long plates. Then put the recording microphone straight. At the same time, the first cylinder 8 will drive the closing plate 9 to move downward and separate from the funnel 10. In this way, if water enters, it can be discharged through the funnel 10 in conjunction with the first filter. When the microphone is safe, the nuts on the four fixing devices 23 can be loosened, and then the threaded column 231 can be rotated to move the fixing column 232. To the inside of the placement groove 183, so that the second filter and the absorbent sponge 18 can be removed for cleaning and drying, and then the internal water is discharged through the holes left after the second filter is taken out, and then the two lifting plates are separated, and the inside is dried by hot air or the like, and then the cleaned second filter 22 and the absorbent sponge 18 are installed, and then the threaded column is rotated so that the fixing column 232 moves out of the placement groove and contacts the second side plate 4 first, and then the nut is tightened so that the second filter 22 can be fixed. The control connection method of the cylinder and the connection method of the humidity sensor and the cylinder in the utility model are all prior art and are not described in detail. The voice collector 11, the clamp 6 and the cylinder in the utility model are all prior art and are not described in detail.

[0033] The present invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waterproof MEMS recording microphone, characterized in that: The invention comprises a bottom plate (1), wherein first side plates (2) are symmetrically arranged at both ends above the bottom plate (1), a top plate (3) is arranged above the two first side plates (2), second side plates (4) are arranged on the sides of the two first side plates (2), a third side plate (5) is arranged on the side of the two first side plates (2) away from the second side plate (4), a clip (6) is arranged on the side of the third side plate (5), a first filter (7) is arranged in the middle of the bottom plate (1), a first cylinder (8) is arranged above the first filter (7), a closing plate (9) is arranged above the first cylinder (8), a funnel (10) is arranged above the closing plate (9), a voice collector (11) is arranged above the funnel (10), a battery (12) is arranged on the side of the voice collector (11), and the first side plate (12) is arranged on the side close to the battery (12). A charging interface (13) is provided on the surface of the side plate (2); a first long plate (14) is provided on the side of the second side plate (4) close to the third side plate (5); a first lifting plate (15) is provided on the side of the first long plate (14); a fixing groove (16) is provided on the lower surface of the first lifting plate (15); a second cylinder (17) is provided above the first lifting plate (15); a water-absorbing sponge (18) is provided below the first long plate (14); a second long plate (19) is provided below the water-absorbing sponge (18); a second lifting plate (20) is provided on the side of the second long plate (19); a third cylinder (21) is provided below the second lifting plate (20); a second filter screen (22) is provided on the surface of the second side plate (4); and fixing devices (23) are provided at four corners of the second filter screen (22).

2. A waterproof MEMS recording microphone according to claim 1, characterized in that: The water-absorbing sponge (18) comprises a sponge body (181), wherein movable grooves (182) are provided at four corners of the sponge body (181), a placement groove (183) is provided on one side of the sponge body (181), and a humidity sensor (184) is provided inside the placement groove (183).

3. A waterproof MEMS recording microphone according to claim 2, characterized in that: The fixing device (23) comprises a threaded column (231), a fixing column (232) is provided on the side of the threaded column (231), and a nut (233) is provided on the outer surface of the threaded column (231).

4. The waterproof MEMS recording microphone according to claim 3, characterized in that: The sponge body (181) and the second filter screen (22) are consistent in length and width; the fixing column (232) and the end of the threaded column (231) close to the fixing column (232) are both located inside the placement groove (183); the sum of the length of the fixing column (232) and the diameter of the threaded column (231) is less than the length of the placement groove (183); the threaded column (231) is located inside the hole of the second filter screen (22) and the two are movably connected.

5. The waterproof MEMS recording microphone according to claim 1, characterized in that: The second filter screen (22) is fixedly connected to the water-absorbing sponge (18), the first cylinder (8) is fixedly connected to the first filter screen (7), the second filter screen (22) is movably connected to the second side plate (4), and the first long plate (14) and the second long plate (19) are both fixedly connected to the second side plate (4).

6. The waterproof MEMS recording microphone according to claim 1, characterized in that: The first long plate (14) is closely connected to the first lifting plate (15) and the two are movably connected. The second long plate (19) is closely connected to the second lifting plate (20) and the two are movably connected. The second lifting plate (20) is located directly below the fixing groove (16) and the two are of the same size.

7. The waterproof MEMS recording microphone according to claim 1, characterized in that: The second cylinder (17) is fixedly connected to the top plate (3), the third cylinder (21) is fixedly connected to the bottom plate (1), the voice collector (11) is fixedly connected to the third side plate (5), and the battery (12) is connected to the charging port (13).

8. The waterproof MEMS recording microphone according to claim 1, characterized in that: The funnel (10) is in the shape of a flat-top pyramid. The upper part of the funnel (10) is tightly connected to the second lifting plate (20), the third side plate (5), and the two first side plates (2). The lower part of the funnel (10) is tightly connected to the closing plate (9), and the two are movably connected.

9. The waterproof MEMS recording microphone according to claim 1, characterized in that: The length of the first long board (14) is consistent with the distance between the two second side boards (4), and the lengths of the first long board, the second long board, the first lifting board (15) and the second lifting board (20) are consistent.

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