Gearbox sensor module and laser welding method thereof
A sensor module and laser welding technology, applied in the field of sensors, can solve the problems of complex welding process and relatively high raw material requirements, achieve the effects of reducing slag, simplifying structural design, improving welding strength and product sealing reliability
Pending Publication Date: 2021-12-31
YUXIN TECH SHANGHAI CO LTD
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Problems solved by technology
[0006] The purpose of the present invention is to provide a laser welding method for a gearbox sensor module, which can solve the shortcomings of the prior art that the welding process is complicated and the requirements for raw materials are relatively high
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[0029] A laser welding method for a gearbox sensor module, comprising the following steps: welding a black shell and a translucent upper cover by laser. Between the black shell and the translucent top cover, the laser penetrates through the translucent top cover, melting the plastic at the contact point between the shell and the top cover. After the heat accumulates, the contact points of the upper and lower covers melt and combine to complete the welding. Combining two sides of plastic, one side is light-absorbing material, and the other side is translucent light-transmitting material. The laser shoots out from the translucent side material, melts the plastic, transmits energy, and completes the welding.
[0030] The conditions of the laser welding of the present invention: the light transmittance of the upper cover material needs to reach 70%. The light transmittance is first detected by the equipment for detecting light transmittance, and at the same time, it will be trial-...
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Abstract
The invention discloses a gearbox sensor module laser welding method. The gearbox sensor module laser welding method comprises the following step that a black shell and a semitransparent upper cover are welded through laser. Between the black shell and the semitransparent upper cover, laser penetrates through the semitransparent upper cover and melts plastic at the contact position of the shell and the upper cover, after heat is accumulated, the contact position of the upper cover and the lower cover is melted and combined, and welding is completed. The gearbox sensor module is prepared through the welding method. The gearbox sensor module comprises the black shell and the semitransparent upper cover. The gearbox sensor module laser welding method has the advantages that the plastic cover and the shell are welded through the laser welding structure design and technology, the structure design of raw materials is simplified, slag generated after welding is reduced, the welding quality and the welding efficiency are improved, the welding strength and the product sealing reliability are improved, and meanwhile no noise is generated in the welding process.
Description
technical field [0001] The invention relates to the field of sensors, more specifically a laser welding method for a gearbox sensor module. Background technique [0002] Such as Figure 7 to Figure 11 As shown, the gearbox sensor module integrates several sensors of the gearbox to detect the input shaft speed of the gearbox, the output shaft speed, the oil temperature of the gearbox, and the sensor assembly of the four shift fork positions of the gearbox. . When the vehicle is running, the module will monitor the operation of the entire gearbox and transmit relevant signals to the TCU (automatic transmission control unit). If there is a problem with the operation of the gearbox, it will notify the on-board computer and issue an alarm. [0003] In the prior art of this product, the ultrasonic welding structure design and process method are adopted, and the plastic cover and the plastic shell are welded. [0004] Ultrasonic welding is a traditional common plastic welding des...
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IPC IPC(8): F16H63/40G01D21/02B29C65/16
CPCF16H63/40G01D21/02B29C65/1635B29C66/73361B29C66/73365
Inventor 杨阳林生军
Owner YUXIN TECH SHANGHAI CO LTD