Vehicle-mounted microphone with casing adopting bi-color injection molding

A two-color injection molding, microphone technology, applied in the direction of electret electrostatic transducer, transducer shell/cabinet/stand, etc., can solve problems such as unfavorable microphone space optimization, weight optimization and cost optimization, and achieve vibration resistance and optimized design. , to ensure the effect of acoustic performance

Active Publication Date: 2012-10-10
BEIJING SINCODE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing microphone circuit boards use 0603 package components, which is n...

Method used

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  • Vehicle-mounted microphone with casing adopting bi-color injection molding
  • Vehicle-mounted microphone with casing adopting bi-color injection molding
  • Vehicle-mounted microphone with casing adopting bi-color injection molding

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] Such as figure 1 As shown, the composition of the microphone assembly of the present invention includes a shell end 1 , a wire harness 2 , and a connector 3 . figure 1 The wiring harness 2 in the box is the connecting wire of the positive and negative poles of the microphone, which are respectively connected to the positive and negative pads on the circuit board at the end of the housing, and inserted into the corresponding holes through the crimped terminals at the end of the connector 3. The negative poles correspond to the positive and negative poles provided by the peripheral circuit respectively. Single-core shielded wires are used in wire harness 2, which can play a certain role in preventing interference.

[0040] Such as figure 2 and image 3 As shown, the lower housing base 7 and the upper housing base 13 are of hard rubber structure, and...

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Abstract

The invention discloses a vehicle-mounted microphone with a casing adopting bi-color injection molding. The vehicle-mounted microphone with the casing adopting the bi-color injection molding comprises a microphone casing, an electret microphone, a circuit board, a wiring harness and an inserting member. One end of the wiring harness butts against a positive and negative pad on the circuit board, the other end of the wiring harness is inserted in a corresponding groove of the inserting member through a terminal after crimping, and the electret microphone is in welding connection with the circuit board through positive and negative pins. The vehicle-mounted microphone further comprises a dustproof plug, the microphone casing comprises an upper casing and a lower casing, the upper casing and the lower casing comprise an upper casing base, a lower casing base, an upper casing cladding layer and a lower casing cladding layer respectively, the cladding layers and the casing bases are molded into a whole body through injection by means of a bi-color injection molding process, a microphone chamber formed between the upper casing and the lower casing is used for accommodating the electret microphone, and a dustproof chamber is used for accommodating the dustproof plug. The vehicle-mounted microphone with the casing adopting the bi-color injection molding can avoid vibration, protects the microphone, is high in manufacturing efficiency and good in slip resistance and cushion performance, saves cost, and can prevent dust. The casing and internal components are combined stably.

Description

technical field [0001] The invention relates to a microphone for in-vehicle communication, in particular to an in-vehicle microphone with a shell adopting two-color injection molding. Background technique [0002] The car microphone can be used for car hands-free and car phone. After the mobile phone is paired with the car Bluetooth, the microphone will play the role of car hands-free, which is convenient for the driver to use. [0003] There are few patents for vehicle-mounted microphones. The invention patent "Car Hands-free Microphone" with the application number of 200520142875.1 is a patent applied by the applicant of this patent. The cavity of the membrane, shell and omentum is equipped with a shielding microphone, which is conducive to the transmission, reception and response of sound signals, and has good dustproof, moistureproof and anti-interference performance. However, the material of the housing housing the microphone is relatively hard, and the microphone is d...

Claims

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Application Information

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IPC IPC(8): H04R19/01H04R1/02
Inventor 白云飞杨新红
Owner BEIJING SINCODE SCI & TECH
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