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Microphone module

A microphone and module technology, applied in the direction of loudspeakers, microphones, sensors, etc., can solve the problems of large stress amplitude and average stress, fatigue cracking of PIN pin welding position, etc., to reduce the stress amplitude, avoid cracking, and expand the deformation area Effect

Active Publication Date: 2020-12-15
SHANDONG GETTOP ACOUSTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a large stress amplitude and average stress at the position where the PIN pin is connected to the PCB soldering, and the long-term temperature stress impact causes fatigue cracking failure at the soldering position of the PIN pin

Method used

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Embodiment Construction

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. One or more embodiments of the present invention are exemplarily shown in the drawings, so as to make the understanding of the technical solutions disclosed in the present invention more accurate and thorough. However, it should be understood that the present invention can be implemented in various forms and is not limited to the embodiments described below.

[0022] Such as figure 1 As shown, the microphone module of the present invention includes a housing 10, a circuit board 20 disposed in the housing 10, and a plurality of electronic components connected to the circuit board (PCB) 20, including a microphone, a voice recognition chip, a processor chip Wait.

[0023] The housing 10 is preferably a plastic housing, and the circuit board 20 is connected to the housing 10 through a plurality of PIN pins 3...

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Abstract

The invention discloses a microphone module, which comprises a shell, a circuit board arranged on the shell and a microphone arranged on the circuit board, wherein a PIN is connected between the shelland the circuit board, a first connecting hole is formed in the circuit board, a second connecting hole is formed in the shell, one end of the PIN is fixed in the first connecting hole, the other endof the PIN is fixed in the second connecting hole, the first connecting hole and the second connecting hole are arranged at an interval, the PIN and the circuit board are welded and fixed through welding flux, and the distance between the welding flux and the second connecting hole is not less than 1.5 times of the width of the PIN. According to the microphone module, the deformation area of thePIN is enlarged by increasing the length of the PIN between the circuit board and the shell, so that the internal force (bending moment) of the welding part of the PIN and the circuit board is reduced, the stress amplitude and the average stress of the PIN are indirectly reduced, the fatigue resistance of the PIN is improved, and cracking is avoided.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted voice recognition, in particular to a vehicle-mounted microphone module. Background technique [0002] With the vigorous development of on-board electronic equipment, the danger of operating equipment during driving is also increasing. Therefore, most vehicles have begun to be equipped with microphone modules to recognize the driver's voice commands, freeing the driver's hands and eyes, and providing an important guarantee for driving safety. Assure. The basic composition of the existing microphone module includes a circuit board (PCB) and a microphone connected to the PCB, a voice recognition chip, a processor, etc. The microphone converts the driver's voice signal into an electrical signal and outputs it to the voice recognition chip. The chip compares and recognizes the received signals, and the processor generates corresponding control signals according to the recognition results of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/08
CPCH04R1/08H04R1/083H04R2201/02
Inventor 张永华杨长江邱士嘉
Owner SHANDONG GETTOP ACOUSTIC