CN209930447U

CN209930447U - Bone conduction transmitter

Info

Publication number: CN209930447U
Application number: CN201920992968.5U
Authority: CN
Inventors: 余志勇
Original assignee: BEST TALENT INDUSTRIAL Co Ltd
Current assignee: BEST TALENT INDUSTRIAL Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-01-10
Anticipated expiration: 2029-06-27

Abstract

A bone conduction microphone, the bone conduction microphone comprising: vibration adapter, sensor and casing, the casing is equipped with the fixed slot, the vibration adapter is equipped with convex part, cavity, spacing rank and mounting groove, the convex part with the fixed slot block makes vibration adapter fixed mounting be in the fixed slot, the spacing rank will the cavity with the mounting groove is separated, sensor fixed mounting be in the mounting groove, the spacing rank is equipped with the transition hole, the transition hole will the cavity with the mounting groove intercommunication, the sensor is equipped with picks up the sound hole, the transition hole does not shelter from pick up the sound hole, bone conduction microphone, the volume is littleer, and the noise immunity performance promotes, makes the conversation effect more clear.

Description

Bone conduction transmitter

Technical Field

The utility model relates to the field of communication, especially, relate to a bone conduction microphone.

Background

In the field of communications, a well-known communications headset is a communications accessory directly and closely related to communications equipment, and the main purpose of the headset is to improve the quality of communications and to make a user more convenient and comfortable; at present, earphone microphones are various in forms, including cantilever microphones, in-ear microphones, skull conduction microphones, cheek bone conduction microphones, larynx head conduction microphones and the like, and the microphones use air conduction microphones and bone conduction microphones, the air conduction microphones generally install the microphones beside mouths and carry out speech transmission through air conduction, and the microphones of the air conduction microphones have to be relatively accurately aligned with mouths of speakers, otherwise, the speech transmission effect is influenced; the existing bone conduction microphone sensor has large volume, and the installation position is basically at the top of the head, the cheek or the larynx position, so the wearing is easy to cause interference; still some slender sensors are generally installed in the ear, and bone conduction is carried out through the ear, and this type of sensor easily causes the return circuit feedback with the loudspeaker of earphone when using, easily produces the echo when using duplex conversation, causes the influence to the transmission, and miniaturized bone conduction technique is the trend in the market.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a bone conduction transmitter, the volume is littleer, and the noise immunity performance promotes, makes the conversation effect more clear.

The utility model discloses a following technical scheme realizes:

the utility model provides a bone conduction microphone, bone conduction microphone includes: vibration adapter, sensor and casing, the casing is equipped with the fixed slot, the vibration adapter is equipped with convex part, cavity, spacing rank and mounting groove, the convex part with the fixed slot block makes vibration adapter fixed mounting in the fixed slot, the spacing rank will the cavity with the mounting groove is separated, sensor fixed mounting in the mounting groove, the spacing rank is equipped with the transition hole, the transition hole will the cavity with the mounting groove intercommunication, the sensor is equipped with picks up the sound hole, the transition hole does not shelter from pick up the sound hole.

Further, bone conduction microphone is equipped with first acoustic celotex board, first acoustic celotex board fixed mounting in the casing, first acoustic celotex board's height is not higher than the vibration adapter.

Further, the bone conduction microphone is provided with a second sound insulation plate, and the second sound insulation plate is fixedly connected with the vibration sound pick-up.

Further, the vibration sound pick-up is provided with a top surface, and the top surface is used for laminating skin.

Furthermore, the vibration pickup is soft elastic colloid.

The utility model has the advantages that:

the utility model provides a bone conduction microphone solves wearing of ordinary microphone bringing and interferes and the anti-noise problem to and with the miniaturization of bone conduction microphone, thereby make the effect of sending a call more clear, the volume is littleer, the anti-noise performance is stronger.

Drawings

Fig. 1 is a schematic view of the internal structure of a vibration pickup of a bone conduction microphone according to the present invention;

fig. 2 is a partial cross-sectional view of a vibration pickup of the bone conduction microphone of the present invention;

fig. 3 is a reference diagram of the bone conduction microphone according to the present invention in an upright use state;

fig. 4 is a partial sectional view of the vibration pickup of the bone conduction microphone of the present invention.

Detailed Description

For a more clear and complete description of the technical solution of the present invention, the following description is made with reference to the accompanying drawings.

Referring to fig. 1 to 4, the present invention provides a bone conduction microphone, including: the vibration pickup device comprises a vibration pickup device 1, a sensor 2 and a shell 4, wherein the shell 4 is provided with a fixing groove 6, the vibration pickup device 1 is provided with a convex part 10, a cavity 12, a limiting step 13 and a mounting groove 3, the convex part 10 is clamped with the fixing groove 6, so that the vibration pickup device 1 is fixedly mounted in the fixing groove 6, the limiting step 13 separates the cavity 12 from the mounting groove 3, the sensor 2 is fixedly mounted in the mounting groove 3, the limiting step 13 is provided with a transition hole 15, the transition hole 15 communicates the cavity 12 with the mounting groove 3, the sensor 2 is provided with a pickup hole 21, and the transition hole 15 does not shield the pickup hole 21; the bone conduction microphone is provided with a first sound insulation plate 401, the first sound insulation plate 401 is fixedly installed in the shell 4, and the height of the first sound insulation plate 401 is not higher than that of the vibration sound pickup 1; the bone conduction microphone is provided with a second sound insulation plate 120, and the second sound insulation plate 120 is fixedly connected with the vibration sound pick-up 1; the vibration pickup 1 is provided with a top surface 11, and the top surface 11 is used for being attached to the skin; the vibration pickup 1 is soft elastic colloid.

In the present embodiment, the scheme of the present invention is to use the vibration pickup 1 made of a soft material, mount at least one sensor 2 inside the vibration pickup 1, seal the sensor 2 in the vibration pickup 1, and change the conduction mode of the sensor 2 into pressure field conduction, which can miniaturize the sensor 2 and improve the noise immunity and the speech clarity; the sensor 2 model applied in this application is: EM-30053, wherein the size of the vibration pickup 1 is designed to be interference fit, the sensor 2 is installed in the fixing groove 6, the periphery of the sensor 2 is tightly attached, the bottom of the sensor 2 is sealed by gluing, the sound pickup hole 21 of the sensor 2 must be completely communicated with the cavity 12, the sound pickup hole 21 and the transition hole 15 are completely avoided, the transition hole 15 does not shield the sound pickup hole 21, the vibration pickup 1 and the sensor 2 are assembled into a component and sealed, the bottom of the vibration pickup 1 and the bottom of the sensor 2 are sealed by using a sealant, so that a fixed air pressure is maintained inside the cavity 12, the top surface 11 is attached to the skin capable of picking up vibration signals, and the vibration pickup 1 picks up vibration signals generated when a human body, thereby driving the pressure change in the cavity 12 and enabling the sensor 2 to obtain signals for outputting; the vibration pickup 1 is made of silica gel, but not limited to, only silica gel, and can also be other soft elastomer gel; the material of the casing 4 is plastic, but not limited to only plastic, and may be flexible glue, metal material or may play a role of supporting as a material, in order to further improve the anti-noise performance of the vibration pickup 1, the first baffle 401 is added around the casing 4, the first baffle 401 is annular, and is used for isolating noise and improving the anti-noise performance, the material is flexible glue, including silica gel or other elastomer flexible glue, the first baffle 401 can be installed on the casing 4 after being formed separately, and can also be formed by secondary encapsulation with the casing 4, the height of the first baffle 401 cannot exceed the top surface 11 of the vibration pickup 1, in order to improve the anti-noise performance of the vibration pickup 1, the second baffles 120 are arranged on the vibration pickup 1, 8 are human ears, and 9 are skin in the ears, vibration adapter 1 installation is fixed in casing 4, casing 4 is worn on human ear 8, vibration adapter 1 the top surface 11 contacts with human ear internal skin 9.

Of course, the present invention can also have other various embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative work, and all of them belong to the protection scope of the present invention.

Claims

1. A bone conduction microphone, comprising: vibration adapter, sensor and casing, the casing is equipped with the fixed slot, the vibration adapter is equipped with convex part, cavity, spacing rank and mounting groove, the convex part with the fixed slot block makes vibration adapter fixed mounting in the fixed slot, the spacing rank will the cavity with the mounting groove is separated, sensor fixed mounting in the mounting groove, the spacing rank is equipped with the transition hole, the transition hole will the cavity with the mounting groove intercommunication, the sensor is equipped with picks up the sound hole, the transition hole does not shelter from pick up the sound hole.

2. The bone conduction microphone of claim 1, wherein the bone conduction microphone is provided with a first acoustic baffle fixedly mounted within the housing, the first acoustic baffle having a height no greater than the vibration pickup.

3. The bone conduction microphone of claim 1, wherein the bone conduction microphone is provided with a second acoustic baffle, the second acoustic baffle being fixedly connected to the vibration pickup.

4. The bone conduction microphone of claim 1, wherein the vibration pickup is provided with a top surface for engaging the skin.

5. The bone conduction microphone of claim 1, wherein the vibration pickup is a soft elastic gel.