Dustproof electret capacitance microphone

Abstract

The utility model relates to a dustproof electret capacitance microphone which comprises a microphone body, a microphone head is fixedly installed on the top of the microphone body, an electret body is arranged inside the microphone head, and a dustproof mechanism is arranged outside the microphone head. The dustproof mechanism comprises a clamping base, a reset spring, a clamping base, a transverse rod, a connecting rod, a dustproof cover, an electric push rod and a magnet. According to the dustproof electret capacitance microphone, the microphone body is sleeved with the two clamping seats, the clamping seats are locked through the fixing screws, the two reset springs push the clamping seats to further fix and stabilize the microphone body, at the moment, the microphone head can be sleeved with the dustproof cover, and the dustproof cover is closed through the magnet; the electric push rods push the two connecting rods to rotate in the opposite directions so as to drive the two dust covers to be opened, after use is completed, the two electric push rods retract to drive the two dust covers to move in the opposite directions, the two magnets attract each other, and therefore the dust covers are tightly closed.

Description

Technical Field

[0001] The utility model relates to the technical field of electret condenser microphones, in particular to a dustproof electret condenser microphone. Background Art

[0002] A condenser microphone converts sound signals into electrical signals by using changes in the size of a capacitor. This type of microphone is the most common, and common recorders have built-in microphones of this type. This is because it is cheap, compact, and has good results. It is sometimes also called a microphone head.

[0003] During the use of the existing microphone, since the sound receiving hole of the microphone head is always exposed to the outside, dust in the air can easily enter the sound receiving hole, which can easily affect the sound receiving effect of the microphone over time; and when there is a lot of dust accumulated in the microphone, it also needs to be cleaned, which is quite troublesome. Therefore, a dust-proof electret condenser microphone head is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a dustproof electret condenser microphone head, which has the advantages of good dustproof effect and preventing dust from entering the microphone. It solves the problem that during the use of the existing microphone, since the sound receiving hole of the microphone head is always exposed to the outside, dust in the air can easily enter the sound receiving hole, which can easily affect the sound receiving effect of the microphone over time and is inconvenient to clean.

[0005] To achieve the above object, the utility model provides the following technical solution: a dustproof electret condenser microphone head, comprising a microphone body, a microphone head is fixedly installed on the top of the microphone body, an electret body is arranged inside the microphone head, and a dustproof mechanism is arranged outside the microphone head;

[0006] The dustproof mechanism includes a socket, a return spring, a clamping socket, a cross bar, a connecting rod, a dust cover, an electric push rod and a magnet. Two sockets are arranged on the outside of the microphone body. The inside of the socket is fixedly installed with a return spring. The side of the return spring away from the socket is equipped with a clamping socket. The outside of the socket is fixedly installed with a cross bar, the top of the cross bar is equipped with a connecting rod, the top of the connecting rod is equipped with a dust cover, the top of the cross bar is hinged with an electric push rod, and the inside of the dust cover is equipped with a magnet.

[0007] Furthermore, a heat dissipation net is installed on the outside of the barrel head, the rear sides of the two holders are hinged to each other, and the front sides of the two holders are threadedly connected by fixing screws.

[0008] Furthermore, the number of the return springs is three, and the sides of the three return springs away from the inner wall of the holder are respectively connected to the three clamping seats.

[0009] Furthermore, the number of the cross bars is two, and the opposite sides of the two cross bars are respectively connected to the opposite sides of the two card seats.

[0010] Furthermore, the bottoms of the two connecting rods are respectively hinged to the tops of the two cross bars, and the sides of the two connecting rods away from the cross bars are respectively connected to the bottoms of the two dust covers.

[0011] Furthermore, the opposite sides of the two dust covers are respectively connected to the two magnets, and the sides of the two electric push rods away from the two cross bars are respectively hinged to the opposite sides of the two connecting rods.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The dustproof electret condenser microphone head supports the microphone head by arranging a microphone body. A protective cover is arranged on the outside of the microphone body to prevent the microphone body from falling off when held in the hand. By arranging a dustproof mechanism, the various structures of the dustproof mechanism cooperate with each other, so that the microphone head can be better protected and the microphone head can be prevented from being exposed to dust for a long time and entering the sound receiving hole.

[0014] 2. The dustproof electret condenser microphone head is provided with a holder, and two holders are fixed to the outside of the microphone body by fixing screws, so as to facilitate the limiting of the dust cover. By providing a reset spring, the reset spring pushes the clamping seat to move in the relative direction to further fix the microphone body stably. The dust cover is fixed by providing a connecting rod. When the microphone body needs to be used, the electric push rod pushes the two connecting rods to rotate in opposite directions, thereby driving the two dust covers to open. When use is completed, the two electric push rods retract, driving the two dust covers to move in the relative direction, and the two magnets are attracted to each other, thereby closing the dust cover tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 3 It is a partial top view schematic diagram of the utility model.

[0018] In the figure: 1 microphone body, 2 microphone head, 3 electret body, 4 dustproof mechanism, 401 holder, 402 return spring, 403 clamping seat, 404 cross bar, 405 connecting rod, 406 dust cover, 407 electric push rod, 408 magnet, 5 heat dissipation net. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 A dustproof electret condenser microphone head comprises a microphone body 1, a microphone head 2 is fixedly mounted on the top of the microphone body 1, an electret body 3 is arranged inside the microphone head 2, and a dustproof mechanism 4 is arranged outside the microphone head 2;

[0021] The dustproof mechanism 4 includes a holder 401, a return spring 402, a clamping seat 403, a cross bar 404, a connecting rod 405, a dust cover 406, an electric push rod 407 and a magnet 408. Two holders 401 are arranged on the outside of the microphone body 1. The inside of the holder 401 is fixedly installed with the return spring 402. The clamping seat 403 is installed on the side of the return spring 402 away from the holder 401. The outside of the holder 401 is fixedly installed with a cross bar 404. The top of the cross bar 404 is installed with a connecting rod 405. The top of the connecting rod 405 is installed with a dust cover 406. The top of the cross bar 404 is hinged with an electric push rod 407, and the inside of the dust cover 406 is provided with a magnet 408.

[0022] exist Figure 1 and Figure 2 In the figure, by setting up a dustproof mechanism 4, the various structures of the dustproof mechanism 4 cooperate with each other, so as to better protect the barrel head 2 and prevent the barrel head 2 from being exposed to dust for a long time and entering the sound receiving hole. A heat dissipation net 5 is installed on the outside of the barrel head 2, and the rear sides of the two holders 401 are hinged to each other, and the front sides of the two holders 401 are threadedly connected by fixing screws.

[0023] exist Figure 1 and Figure 2 In the figure, the dustproof mechanism 4 includes a base 401, a return spring 402, a clamping base 403, a cross bar 404, a connecting rod 405, a dust cover 406, an electric push rod 407 and a magnet 408. There are three return springs 402, and the three return springs 402 are respectively connected to the three clamping bases 403 on one side away from the inner wall of the base 401.

[0024] exist Figure 1 and Figure 3 In the figure, there are two cross bars 404, and the opposite sides of the two cross bars 404 are respectively connected to the opposite sides of the two holders 401. By setting the holders 401, the two holders 401 are fixed to the outside of the microphone body 1 by fixing screws, so as to facilitate the limiting of the dust cover 406.

[0025] exist Figure 2 and Figure 3 In the figure, the bottoms of the two connecting rods 405 are hinged to the tops of the two cross bars 404 respectively, and the sides of the two connecting rods 405 away from the cross bars 404 are respectively connected to the bottoms of the two dust covers 406. The dust covers 406 are fixed by setting the connecting rods 405. When the microphone body 1 needs to be used, the electric push rod 407 pushes the two connecting rods 405 to rotate in opposite directions, thereby driving the two dust covers 406 to open.

[0026] exist Figure 2 and Figure 3 In the embodiment, the two dust covers 406 are respectively connected to the two magnets 408 at opposite sides thereof, and the two electric push rods 407 are respectively hinged to the two connecting rods 405 at opposite sides thereof away from the two cross bars 404 .

[0027] To sum up, when using the dustproof electret condenser microphone, firstly, the two holders 401 are put on the outside of the microphone body 1, and the holders 401 are locked by fixing screws, and then the two return springs 402 push the clamping seat 403 to further fix the microphone body 3 stably, and then the dust cover 406 can be put on the outside of the microphone head 2, and the dust cover 406 is closed by the magnet 408. When the microphone body 1 needs to be used, the electric push rod 407 pushes the two connecting rods 405 to rotate in opposite directions, thereby driving the two dust covers 406 to open. When use is completed, the two electric push rods 407 retract, driving the two dust covers 406 to move in opposite directions, and the two magnets 408 are attracted to each other, thereby closing the dust covers 406 tightly.

[0028] The specific model specifications of each device in this article need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof electret condenser microphone, comprising a microphone body (1), characterized in that: A microphone head (2) is fixedly mounted on the top of the microphone body (1), an electret body (3) is arranged inside the microphone head (2), and a dustproof mechanism (4) is arranged outside the microphone head (2); The dustproof mechanism (4) comprises a holder (401), a return spring (402), a clamping seat (403), a cross bar (404), a connecting rod (405), a dust cover (406), an electric push rod (407) and a magnet (408); two holders (401) are arranged outside the microphone body (1); the interior of the holder (401) is fixedly mounted with a return spring (402); a clamping seat (403) is installed on the side of the return spring (402) away from the holder (401); a cross bar (404) is fixedly mounted outside the holder (401); a connecting rod (405) is installed on the top of the cross bar (404); a dust cover (406) is installed on the top of the connecting rod (405); an electric push rod (407) is hinged on the top of the cross bar (404); and a magnet (408) is arranged inside the dust cover (406).

2. The dustproof electret condenser microphone according to claim 1, characterized in that: A heat dissipation net (5) is installed on the outside of the barrel head (2), the rear sides of the two clamping seats (401) are hinged to each other, and the front sides of the two clamping seats (401) are threadedly connected by fixing screws.

3. The dustproof electret condenser microphone according to claim 1, characterized in that: The number of the return springs (402) is three, and the sides of the three return springs (402) away from the inner wall of the clamping seat (401) are respectively connected to the three clamping seats (403).

4. The dustproof electret condenser microphone according to claim 1, characterized in that: There are two cross bars (404), and opposite sides of the two cross bars (404) are respectively connected to opposite sides of the two holders (401).

5. The dustproof electret condenser microphone according to claim 1, characterized in that: The bottoms of the two connecting rods (405) are respectively hinged to the tops of the two cross bars (404), and the sides of the two connecting rods (405) away from the cross bars (404) are respectively connected to the bottoms of the two dust covers (406).

6. The dustproof electret condenser microphone according to claim 1, characterized in that: The opposite sides of the two dust covers (406) are respectively connected to the two magnets (408), and the sides of the two electric push rods (407) away from the two cross bars (404) are respectively hinged to the opposite sides of the two connecting rods (405).

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