CN220359303U - Unidirectional microphone - Google Patents

Abstract

The utility model discloses a unidirectional microphone which comprises a shell, wherein a core body is embedded in the shell, leads are welded on two sides of the outer wall of the top of the core body, the bottom end of the shell is in threaded connection with a cover body assembly, the cover body assembly comprises a threaded ring, a cover shell is integrally formed at the bottom end of the threaded ring, and a dust screen is embedded in the inner wall of the side face of the cover shell, which is close to the bottom; the cover body component is arranged at one end of the shell, which is equivalent to the fact that a cavity structure is additionally arranged outside the microphone, so that the unidirectional effect of the microphone is improved, the microphone can meet special pick-up application occasions, when the microphone is assembled, the clamping seat can be firstly arranged on the shell in a threaded mode, the lead wire penetrates through the clamping seat to extend out, then the spanner is rotated through a tool, the lead screw slides on the sliding rail with the clamping plates, the two clamping plates clamp the lead wire with the sponge, the lead wire is fixed, and the lead wire is prevented from being pulled when the lead wire of the microphone is pulled.

Description

Unidirectional microphone

Technical Field

The utility model relates to the technical field of unidirectional microphones, in particular to a unidirectional microphone.

Background

Unidirectional microphone is designed mainly by adopting the principle of pressure gradient. Through the aperture at the back of miaow head cavity, the vibrating diaphragm receives the pressure on positive and negative two sides, consequently the vibrating diaphragm receives the pressure of different directions and is different, and the microphone has the directionality.

According to the microphone with the application number of CN201821266103.2 and the authorized notice date of 20190329, because the annular copper surface boss is arranged on the outer annular copper surface and on the inner side of the microphone shell, in the SMT (surface mount technology), when the microphone is stuck to the position of the PCB where solder paste is brushed, due to the supporting effect of the annular copper surface boss, a gap exists between the anode and the cathode of the surface of the microphone, which is not stuck with components, and the PCB, at the moment, even if the pressure of the microphone is too large, the anode and the cathode of the surface are not contacted with the PCB, because the solder paste cannot be extruded, even if the solder paste is slightly extruded because the solder paste is large in quantity, the extruded solder paste can not directly flow to the insulating surface to communicate the outer annular copper surface with the inner annular copper surface, so that the anode and the cathode of the microphone are prevented from being connected to be shorted, the yield of the microphone on the PCB is greatly improved, and the microphone is directly connected to the PCB through the SMT technology, the traditional pin and the labor cost are also greatly improved.

Because of the limitation of the structure, the unidirectional microphone cannot achieve a satisfactory unidirectional effect, which results in that the microphone cannot meet some special pick-up application occasions, and therefore, a unidirectional microphone needs to be designed to solve the above problems.

Disclosure of Invention

The present utility model is directed to a unidirectional microphone to solve the above-mentioned drawbacks of the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a unidirectional microphone, includes the casing, the inside embedding of casing has the core, and core top outer wall both sides all weld the lead wire, casing bottom threaded connection has the cover body subassembly, the cover body subassembly includes the screwed ring, screwed ring bottom integrated into one piece has the housing, and housing side inner wall is close to bottom department embedding has the dust screen.

Further, the outer wall of the side face of the shell is provided with threaded portions close to two ends, and the threaded rings are in threaded connection with the threaded portions.

Further, the side outer wall of the shell is in threaded connection with a clamping seat near the top end, and the clamping seat is in threaded connection with the outside of the threaded part.

Furthermore, the rotating plate is embedded into one end of the clamping seat through the bearing, and two sliding rails are integrally formed on the inner wall of one side of the rotating plate.

Further, a screw rod is arranged in the rotating plate through a bearing, and one end of the screw rod is welded with a spanner head embedded in the outer part of the clamping seat.

Further, two clamping plates in threaded connection with the screw rod are connected between the two sliding rails in a sliding manner, and sponge is adhered to the outer wall of one side of each clamping plate.

Further, the shell comprises an anti-interference layer, an outer layer is bonded on the side outer wall of the anti-interference layer, a sound insulation layer is bonded on the side inner wall of the anti-interference layer, and an inner layer is bonded on the side outer wall of the sound insulation layer.

In the technical scheme, the unidirectional microphone provided by the utility model has the advantages that (1) the cover body component is arranged at one end of the shell, which is equivalent to the fact that a cavity structure is additionally arranged outside the microphone, so that the unidirectional effect of the microphone is improved, and the microphone can meet special pickup application occasions; (2) Through the clamping seat, the clamping plates and the sponge, when the microphone is assembled, the clamping seat can be firstly arranged on the shell through threads, the lead wire penetrates through the clamping seat to extend out, and then the spanner head is rotated through a tool, so that the lead screw slides on the sliding rail with the clamping plates, the lead wire is clamped by the two clamping plates with the sponge, the lead wire is fixed, and the lead wire is prevented from being pulled off when the microphone lead wire is pulled; (3) Through puigging, the interference killing feature of setting, the puigging is the soundproof cotton, can improve the function of making an uproar of this miaow, and the interference killing feature of this miaow can be improved to the interference killing feature that the metal was made.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic perspective view of a unidirectional microphone according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of a shell and a core structure provided by an unidirectional microphone according to an embodiment of the utility model.

Fig. 3 is a schematic top view of a holder according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a cover assembly according to an embodiment of the unidirectional microphone of the present utility model.

Fig. 5 is a schematic structural diagram of a shell material provided by an unidirectional microphone according to an embodiment of the utility model.

Reference numerals illustrate:

1. a housing; 2. a clamping seat; 3. a cover assembly; 4. a lead wire; 5. a spanner head; 6. a rotating plate; 7. a slide rail; 8. a screw rod; 9. a clamping plate; 10. a sponge; 11. a core; 12. a threaded portion; 13. a threaded ring; 14. a housing; 15. a dust screen; 16. an anti-interference layer; 17. an outer layer; 18. a sound insulation layer; 19. an inner layer.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-5, the unidirectional microphone provided by the embodiment of the utility model comprises a shell 1, wherein a core 11 is embedded in the shell 1, leads 4 are welded on two sides of the outer wall of the top of the core 11, the bottom end of the shell 1 is in threaded connection with a cover body assembly 3, the cover body assembly 3 comprises a threaded ring 13, a cover 14 is integrally formed at the bottom end of the threaded ring 13, and a dust screen 15 is embedded in the inner wall of the side face of the cover 14 close to the bottom.

Specifically, in this embodiment, including casing 1, casing 1 inside embedding has core 11, and core 11 top outer wall both sides have all welded lead wire 4, casing 1 bottom threaded connection has cover body subassembly 3, cover body subassembly 3 sets up and is equivalent to the outside cavity structure that increases of miaow head in casing 1 one end for the unidirectional effect of miaow head improves, make the miaow head can satisfy some special pickup application occasions, cover body subassembly 3 includes screwed ring 13, screwed ring 13 can make housing 14 install in casing 1 bottom, screwed ring 13 bottom integrated into one piece has housing 14, and housing 14 side inner wall is close to bottom department embedding has dust screen 15, dust screen 15 can avoid the dust to fall on core 11.

According to the unidirectional microphone provided by the utility model, the cover body component 3 is arranged at one end of the shell 1, which is equivalent to adding a cavity structure outside the microphone, so that the unidirectional effect of the microphone is improved, and the microphone can meet special pick-up application occasions.

In another embodiment provided by the utility model, as shown in fig. 2, the outer wall of the side surface of the shell 1 is provided with the threaded parts 12 near the two ends, the threaded parts 12 facilitate the installation of the cover body assembly 3 and the clamping seat 2 at the two ends of the shell 1, and the threaded rings 13 are connected to the threaded parts 12 in a threaded manner.

In another embodiment provided by the utility model, as shown in fig. 1 and 3, a clamping seat 2 is in threaded connection with the outer wall of the side face of a shell 1 near the top end, the clamping seat 2 is in threaded connection with the outside of a threaded part 12, one end of the clamping seat 2 is embedded with a rotating plate 6 through a bearing, a groove is formed in the middle of the rotating plate 6, a lead 4 conveniently passes through the rotating plate 6, two sliding rails 7 are integrally formed on the inner wall of one side of the rotating plate 6, the sliding rails 7 can guide the movement of the clamping plate 9, a lead screw 8 is mounted in the rotating plate 6 through a bearing, one end of the lead screw 8 is welded with a wrench head 5 embedded outside the clamping seat 2, the wrench head 5 can rotate along with the lead screw 8 by means of a tool, two clamping plates 9 in threaded connection with the lead screw 8 are connected between the two sliding rails 7 in a sliding manner, the lead screw 8 slides along the sliding rails 7, the two clamping plates 9 clamp the lead 4 along with a sponge 10, the lead screw 4 is fixed, the lead screw 4 is prevented from being torn by the lead screw 9, and the lead screw 10 is prevented from being damaged by the sponge 10 adhered to the outer wall of one side of the clamping plate 9.

In another embodiment provided by the utility model, as shown in fig. 5, the shell 1 comprises an anti-interference layer 16, the anti-interference layer 16 made of metal can improve the anti-interference capability of the microphone, the outer layer 17 is bonded on the outer wall of the side surface of the anti-interference layer 16, the outer layer 17 is made of metal, the strength of the microphone can be improved, the sound insulation layer 18 is bonded on the inner wall of the side surface of the anti-interference layer 16, the sound insulation layer 18 made of sound insulation cotton can improve the noise reduction function of the microphone, the inner layer 19 is bonded on the outer wall of the side surface of the sound insulation layer 18, and the inner layer 19 is made of insulating material.

Working principle: when the microphone is assembled, the clamping seat 2 can be firstly arranged on the shell 1 in a threaded manner, the lead 4 penetrates through the clamping seat 2 to extend out, then the spanner head 5 is rotated through a tool, the lead screw 8 is enabled to slide on the sliding rail 7 with the clamping plates 9, the lead 4 is enabled to be clamped by the two clamping plates 9 with the sponge 10, the lead 4 is fixed, the lead is prevented from being pulled out when the microphone lead 4 is pulled, the noise reduction function of the microphone can be improved through the sound insulation layer 18 made of the sound insulation cotton, the anti-interference capability of the microphone can be improved through the anti-interference layer 16 made of metal, and the cavity structure is additionally arranged at one end of the shell 1 corresponding to the outside of the microphone, so that the unidirectional effect of the microphone is improved, and the microphone can meet special pick-up application occasions.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (7)

1. Unidirectional microphone, comprising a housing (1), characterized in that: the novel anti-dust device is characterized in that a core body (11) is embedded in the shell (1), leads (4) are welded on two sides of the outer wall of the top of the core body (11), a cover body assembly (3) is connected with the bottom end of the shell (1) in a threaded mode, the cover body assembly (3) comprises a threaded ring (13), a cover shell (14) is integrally formed at the bottom end of the threaded ring (13), and a dust screen (15) is embedded in the side inner wall of the cover shell (14) close to the bottom.

2. Unidirectional microphone according to claim 1, characterized in that the lateral outer wall of the housing (1) is provided with screw thread parts (12) near both ends, and the screw thread ring (13) is screwed on the screw thread parts (12).

3. Unidirectional microphone according to claim 2, characterized in that the lateral outer wall of the housing (1) is screwed with a clamping seat (2) near the top end, and the clamping seat (2) is screwed outside the threaded portion (12).

4. A unidirectional microphone according to claim 3, wherein one end of the holder (2) is embedded with a rotating plate (6) through a bearing, and two sliding rails (7) are integrally formed on an inner wall of one side of the rotating plate (6).

5. Unidirectional microphone according to claim 4, characterized in that the screw rod (8) is mounted inside the rotating plate (6) through a bearing, and one end of the screw rod (8) is welded with a wrench head (5) embedded outside the clamping seat (2).

6. Unidirectional microphone according to claim 5, characterized in that two clamping plates (9) in threaded connection with the screw rod (8) are connected between the two sliding rails (7) in a sliding manner, and a sponge (10) is adhered to the outer wall of one side of the clamping plate (9).

7. Unidirectional microphone according to claim 1, characterized in that the housing (1) comprises an anti-interference layer (16), wherein an outer layer (17) is bonded to the side outer wall of the anti-interference layer (16), a sound insulation layer (18) is bonded to the side inner wall of the anti-interference layer (16), and an inner layer (19) is bonded to the side outer wall of the sound insulation layer (18).