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Method for manufacturing ultrasonic sensors with sensitivity improved by wire stripping

A manufacturing method and ultrasonic technology, applied in radio wave measurement systems, instruments, etc., to achieve the effects of convenient operation, saving raw materials and production processes, and suppressing vibration amplitude

Inactive Publication Date: 2013-09-11
成都楷模电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: aiming at the problems existing in the prior art to solve the problem of product non-operation and indirect non-operation, to provide a method for manufacturing an ultrasonic sensor with wire stripping treatment to improve sensitivity. The way of the second transfer of the transfer board eliminates the problem of virtual soldering and the problem of broken positive connecting wires caused by the second transfer, and can solve the problem of product non-operation and intermittent non-operation under the premise of ensuring the realization of product functions , and the signal output positive connection wire is stripped to overcome the problem that the vibration amplitude of the ultrasonic sensor is suppressed, and realize the function of the ultrasonic sensor

Method used

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  • Method for manufacturing ultrasonic sensors with sensitivity improved by wire stripping
  • Method for manufacturing ultrasonic sensors with sensitivity improved by wire stripping
  • Method for manufacturing ultrasonic sensors with sensitivity improved by wire stripping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: A method for manufacturing an ultrasonic sensor with wire stripping treatment to improve sensitivity includes the steps: S1: Provide a cylindrical shell and bond the piezoelectric element to the inner wall of the bottom end of the cylindrical shell, and the closed end of the cylindrical shell is the bottom surface of the cylindrical shell;

[0048] S2: Connect the signal positive wire to the positive electrode of the piezoelectric element, and the signal negative wire to the inner wall of the cylindrical shell;

[0049] S3: Strip the signal output positive wire;

[0050] S4: Filling and injecting the sound-absorbing element into the cavity of the cylindrical shell at one time to form a sound-absorbing element layer;

[0051] S5: filling the sealant into the cavity of the cylindrical shell at one time to form a sealant layer;

[0052] The ultrasonic sensor that makes according to embodiment one is as figure 2 shown and image 3 combined as shown.

Embodiment 2

[0053] Embodiment 2: On the basis of Embodiment 1, during the stripping operation of the S3 signal output positive wire, point P is the welding point between one end of the signal output positive wire and one end face of the piezoelectric element; h is the stripping length; d is The unstripped length between h and p. like image 3 shown.

Embodiment 3

[0054] Embodiment 3: On the basis of Embodiment 1 or 2, the h is located between the upper end surface of the sound-absorbing element layer and the bottom end surface of the cylindrical shell.

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Abstract

The invention relates to the field of obstacle detection sensors, in particular to a method for manufacturing ultrasonic sensors with sensitivity improved by wire stripping, and aims at solving the problem that products do not work and do not work intermittently in the prior art. By adopting a mode that secondary through connection is abolished, the problems of false welding and breaking of conducting wires caused by secondary through connection are eradicated, and the problem that the products do not work and do not work intermittently can be solved while the product functions are guaranteed to be realized. By omitting adapter plates in the prior art and performing wire stripping at one end of a signal output anode wire, the problem of the prior art is solved. The method for manufacturing the ultrasonic sensors with sensitivity improved by wire stripping is applied to the field of manufacturing of the ultrasonic sensors integrating functions of receiving and transmitting and used for automatic parking systems.

Description

technical field [0001] The invention relates to the field of obstacle detection sensors, in particular to a manufacturing method of an ultrasonic sensor that improves sensitivity by wire stripping. Background technique [0002] Ultrasonic sensors with integrated transceiver functions have been widely used as obstacle detection sensors such as vehicle parking systems. Such product structure as figure 1 As shown, such an ultrasonic sensor includes a cylindrical shell 1 with a bottom and a piezoelectric element 2, wherein the piezoelectric element 2 is attached to the inner side of the bottom of the cylindrical shell 1, so that the bottom of the cylindrical shell 1 has the function of a vibrating surface . The first sealant layer 5 is filled in the concave part formed by the adapter plate 8 (the function is to transmit the positive and negative signals of the signal transmission to the positive connection line 9 and the negative connection line 10 respectively) and the side w...

Claims

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Application Information

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IPC IPC(8): G01S7/521
Inventor 李铭欧贵彬
Owner 成都楷模电子科技有限公司
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