CN109379650B

CN109379650B - Microphone shock-absorbing structure and microphone equipment

Info

Publication number: CN109379650B
Application number: CN201811216619.0A
Authority: CN
Inventors: 林敏强; 刘泽民; 苏红奕
Original assignee: Shenzhen Konka Electronic Technology Co Ltd
Current assignee: Shenzhen Konka Electronic Technology Co Ltd
Priority date: 2018-10-18
Filing date: 2018-10-18
Publication date: 2020-04-14
Anticipated expiration: 2038-10-18
Also published as: CN109379650A

Abstract

The invention discloses a microphone shock absorption structure and microphone equipment, which comprise a shell, a microphone and a shock absorption piece, wherein a shell cavity is arranged in the shell, and the shock absorption piece is arranged in the shell cavity and is fixedly connected with the shell; the microphone is characterized in that a containing groove for containing the microphone is formed in one face, connected with the shell, of the shock absorption piece, and sound pickup holes in one-to-one correspondence with the containing groove are formed in the shell. The invention adopts the mode of arranging the microphone on the damping piece, thereby reducing the influence of vibration on the pickup effect of the microphone, improving the production and assembly efficiency and reducing the production cost.

Description

Microphone shock-absorbing structure and microphone equipment

Technical Field

The invention relates to the technical field of microphones, in particular to a microphone shock absorption structure and microphone equipment.

Background

At present, microphone devices (such as smart televisions, OTT devices, PCs, smart speakers) have been popularized with voice recognition applications, and operations such as query and control can be performed through voice. The introduction of far-field voice technology makes the man-machine interaction of the microphone equipment completely separated from the remote controller, and the background engine is awakened directly through voice, so as to achieve the effect of man-machine intelligent conversation.

However, in order to meet the requirements of modeling and structural design, for example, in the case of smart television, the far-field speech module microphone array needs to be placed in the center of the sound bar of the television and sandwiched between two speakers of the television. The specific mode is to place the microphone array on a small hole in the center of a sound bar and fix the microphone array by using glue dispensing. The design not only enables the sound of the television local to interfere with the sound pickup effect of the microphone array, but also greatly influences the use of far-field voice when the vibration generated by the loudspeaker during working is transmitted to the microphone array through the sound bar. That is, in order to meet the requirements of the modeling and structural design of the microphone device, the vibration generated by the speaker during operation affects the normal use of the microphone.

Therefore, the prior art has defects and needs to be improved and developed.

Disclosure of Invention

The present invention provides a microphone damping structure and a microphone device, aiming at solving the problem that the normal use of the microphone is affected by the vibration generated by the speaker of the microphone device during operation in the prior art.

The technical scheme adopted by the invention for solving the technical problem is as follows:

a microphone damping structure comprises a shell, a microphone and a damping piece, wherein a shell cavity is formed in the shell, and the damping piece is arranged in the shell cavity and fixedly connected with the shell; the microphone is characterized in that a containing groove for containing the microphone is formed in one face, connected with the shell, of the shock absorption piece, and sound pickup holes in one-to-one correspondence with the containing groove are formed in the shell.

Further, the shock absorbing piece is a soft rubber shock absorbing piece.

Further, the shock absorbing piece is a TPU shock absorbing piece.

Further, the shock absorbing part is a shock absorbing part with the hardness of 60HA-85 HD.

Further, still be provided with the circuit board in the shell intracavity, the circuit board with the shock attenuation piece deviates from the one side of casing and is connected, the microphone pass through the connecting wire with the circuit board is connected.

Furthermore, the shock absorbing piece is in a strip shape, the accommodating grooves are arranged in a plurality of shapes and are linearly arranged on one surface of the shock absorbing piece, which is connected with the shell.

Furthermore, the microphones are accommodated in the accommodating grooves and are tightly attached to the accommodating grooves, and the distance between every two adjacent accommodating grooves is 35 mm.

Furthermore, the surface of the shock absorbing part, which is far away from the shell, is also provided with a reinforcing rib for supporting the shock absorbing part.

Further, the casing is rectangular form, the one side that bumper shock absorber and casing are connected is the plane, the plane closely laminates with the casing, and passes through screw fixed connection.

The invention also provides a microphone device, wherein the microphone shock absorption structure is included.

Compared with the prior art, the microphone damping structure provided by the invention comprises a shell, a microphone and a damping piece, wherein a shell cavity is arranged in the shell, and the damping piece is arranged in the shell cavity and fixedly connected with the shell; the microphone is characterized in that a containing groove for containing the microphone is formed in one face, connected with the shell, of the shock absorption piece, and sound pickup holes in one-to-one correspondence with the containing groove are formed in the shell. The invention adopts the mode of arranging the microphone on the damping piece, thereby reducing the influence of vibration on the pickup effect of the microphone, improving the production and assembly efficiency and reducing the production cost.

Drawings

Fig. 1 is an exploded view of a first perspective of a preferred embodiment of a microphone shock absorbing structure according to the present invention.

Fig. 2 is an exploded view of a second perspective of a preferred embodiment of the microphone shock absorbing structure of the present invention.

FIG. 3 is a schematic view of the assembly of the shock absorbing member and the microphone in the preferred embodiment of the microphone shock absorbing structure of the present invention.

Fig. 4 is a schematic structural view of a shock absorbing member in a preferred embodiment of the microphone shock absorbing structure of the present invention.

Fig. 5 is an assembly view of a preferred embodiment of the microphone shock-absorbing structure of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 2 and fig. 4, a first embodiment of the present invention provides a microphone shock-absorbing structure, which includes a housing 100, a microphone 400 and a shock-absorbing member 200, wherein a housing cavity is disposed in the housing 100, and the shock-absorbing member 200 is disposed in the housing cavity and fixedly connected to the housing 100; the one side that shock attenuation piece 200 and casing 100 are connected is provided with and holds the storage tank 210 of microphone 400, be provided with on the casing 100 with the adapterization hole 110 of storage tank 210 one-to-one.

Specifically, the casing 100 of the present invention may be sound bar, which is a strip-shaped sound box integrating a sound box with multiple sound channels and a power amplifier into one box. The existing sound bar is that a microphone array is placed on a small hole in the center of a sound bar shell 100 and fixed by using glue dispensing, the installation process is complex, the vibration generated during the operation of a loudspeaker is transferred to the microphone array through the sound bar shell 100, the use of far-field voice is greatly influenced, the vibration is particularly obvious when the loudspeaker plays bass, the pickup effect of the microphone 400 is influenced by the vibration, and the use experience of the far-field voice is influenced. According to the invention, the microphone array is separated from the shell 100, so that the microphone array is not contacted with the shell 100 any more, the microphone array is arranged on the shock absorbing piece 200, and then the shock absorbing piece 200 is fixed on the shell 100, so that the vibration generated when the loudspeaker works is transmitted to the shock absorbing piece 200 and absorbed by the shock absorbing piece 200, and the influence of the vibration on the sound collecting effect of the microphone 400 is reduced.

Further, referring to fig. 4, the shock absorbing member 200 is a soft rubber shock absorbing member; not only can ensure good elasticity, but also achieves the effect of shock absorption. Preferably, the shock absorbing member 200 is a TPU shock absorbing member, that is, the material used for the shock absorbing member 200 is selected to be TPU. TPU (thermoplastic polyurethanes) are known under the name thermoplastic polyurethane elastomer rubbers. The halogen-free flame-retardant TPU can be widely applied to the fields of daily necessities, sports goods, toys, decorative materials and the like, and can also replace soft PVC to meet the environmental protection requirements of more and more fields.

Further, the hardness range of the shock absorbing member 200 is shore hardness 60HA-85HD, and the shock absorbing member HAs good elasticity, high mechanical strength and outstanding shock absorbing characteristics.

In the preferred embodiment of the present invention, a circuit board 300 is further disposed in the housing cavity, the circuit board 300 is connected to a surface of the shock absorbing member 200 away from the housing 100, and the microphone 400 is connected to the circuit board 300 through a connecting wire 410. Of course, the present invention does not limit the position of the circuit board 300, and only needs to connect the microphone 400 and the circuit board 300 through the connection wire 410, and the specific position is set reasonably according to the internal structure and the space of the microphone 400.

Further, as shown in fig. 4, the shock absorbing members 200 may be provided in various shapes, which may be irregular shapes, to make reasonable use of the space size of the microphone 400 device. Taking a sound bar on the smart television as an example, the shock absorbing member 200 is configured to be a long strip shape to adapt to a long strip-shaped sound box. The plurality of accommodating grooves 210 are linearly arranged on the side where the shock absorbing member 200 is connected to the housing 100, so as to form a microphone array. It is verified that the shock absorbing member 200 improves the pickup effect of the far-field speech microphone array by 30%.

Referring to fig. 2, a reinforcing rib 230 for supporting the shock absorbing member 200 is further disposed on a surface of the shock absorbing member 200 away from the housing 100. It can be understood that the shock absorbing member 200 is made of soft plastic and is easy to deform, which is inconvenient for fixing the microphone 400, and therefore, the plurality of reinforcing ribs 230 are arranged on the surface of the shock absorbing member 200 away from the microphone 400 and can be distributed in an irregular shape, which aims to enhance the strength of the shock absorbing member 200 to the maximum extent and increase the firmness of fixing the microphone 400.

In the preferred embodiment of the present invention, the distance between two adjacent accommodating grooves 210 is 35mm, so as to enhance the sound-collecting effect of the microphone 400 in a limited space.

Further, referring to fig. 3 and 4, the microphone 400 is held in the accommodating groove 210, and the accommodating groove 210 extends outward to form a lead groove for accommodating a connection wire 410 between the microphone 400 and the circuit board 300. In the accommodating groove 210, except for the surface attached to the housing 100 and the lead groove, other parts are sealed, and the size of the microphone 400 is completely matched with that of the accommodating groove 210 and is tightly attached to the accommodating groove. Specifically, the size of the receiving groove 210 is slightly smaller than the outer contour size of the microphone 400 (for example, the diameter of the prototype microphone is 7.2mm, and the diameter of the receiving groove hole is set to be 7.1 mm), and other parts of the microphone 400 except the surface contacting the casing are tightly and hermetically wrapped in the receiving groove 210. The microphone 400 is completely wrapped by the shock absorbing member 200 in a sealing manner, so that the sealing performance is ensured, and the sound receiving quality is improved.

The microphone 400 is kept at a distance of 0-10mm from the housing 100. Preferably, the microphone 400 is tightly attached to the casing 100, so that the sealing performance is increased, and the sound receiving quality is improved.

Referring to fig. 2 and 5, the housing 100 is in a shape of a long strip, that is, a hollow cuboid, one surface of the shock absorbing member 200 connected to the housing 100 is a plane, the plane is tightly attached to the housing 100, and the shock absorbing member 200 is fixedly connected to the housing 100 through a screw 220; during assembly, the microphone 400 is firstly embedded into the accommodating groove 210 in the shock absorbing piece 200, and then the shock absorbing piece 200 is installed on the shell 100, so that the microphone 400 and the shock absorbing piece 200 are firstly assembled into one piece, and the integrated preprocessing principle is better met; the production and assembly efficiency is improved, and the production cost is reduced.

In a second embodiment of the present invention, a microphone apparatus, such as a smart tv, OTT box, PC, smart box, etc., is provided, which includes a microphone shock absorbing structure as described in the first embodiment of the present invention.

In summary, the microphone damping structure and the microphone device provided by the invention comprise a shell, a microphone and a damping piece, wherein a shell cavity is arranged in the shell, and the damping piece is arranged in the shell cavity and fixedly connected with the shell; the microphone is characterized in that a containing groove for containing the microphone is formed in one face, connected with the shell, of the shock absorption piece, and sound pickup holes in one-to-one correspondence with the containing groove are formed in the shell. The invention not only reduces the influence of vibration on the pickup effect of the microphone, but also improves the production and assembly efficiency and reduces the production cost.

It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims

1. A microphone shock absorption structure is characterized by comprising a shell, a microphone and a shock absorption piece, wherein a shell cavity is arranged in the shell, and the shock absorption piece is arranged in the shell cavity and fixedly connected with the shell; one side of the shock absorption piece, which is connected with the shell, is provided with a containing groove for containing the microphone, and the shell is provided with sound pickup holes which correspond to the containing groove one by one; a circuit board is also arranged in the shell cavity, and the microphone is connected with the circuit board through a connecting wire; the one side that the shock attenuation piece deviates from the casing still is provided with the strengthening rib that is used for supporting the shock attenuation piece.

2. The microphone shock absorbing structure of claim 1, wherein the shock absorbing member is a soft rubber shock absorbing member.

3. The microphone shock absorbing structure of claim 2, wherein the shock absorbing member is a TPU shock absorbing member.

4. The microphone shock absorbing structure of claim 1, wherein the shock absorbing member is a shock absorbing member having a hardness of 60HA-85 HD.

5. The microphone shock absorbing structure of claim 1, wherein the circuit board is connected to a side of the shock absorbing member facing away from the housing.

6. The microphone shock absorbing structure according to claim 1, wherein the shock absorbing member has an elongated shape, and the plurality of receiving grooves are provided and arranged in a line on a side of the shock absorbing member connected to the housing.

7. The microphone shock absorbing structure of claim 6, wherein the microphones are accommodated in the accommodating grooves and closely attached to the accommodating grooves, and a distance between two adjacent accommodating grooves is 35 mm.

8. The microphone shock absorbing structure of claim 1, wherein the housing is elongated, and the surface of the shock absorbing member connected to the housing is a flat surface, and the flat surface is tightly attached to the housing and fixedly connected to the housing by screws.

9. Microphone arrangement, characterized by comprising a microphone shock-absorbing structure according to any of claims 1-8.