Adjustable vehicle-mounted switch of plug-in piece, core assembly and fabrication method of vehicle-mounted switch
A production method and adjustable technology, which is applied in the direction of electric switches, electrical components, circuits, etc., can solve the problems of movement position changes, waterproof performance degradation, and non-adjustable parameters, etc., to achieve precise switch control, high waterproof level, and improved accuracy Effect
Active Publication Date: 2017-05-17
ZHANGZHOU JUANMEI ELECTRIC TECH CO LTD
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Problems solved by technology
[0003] After research, the applicant found that the existing on-board switches mainly have the following problems: the working environment is complex and harsh, and the connectors of the on-board switches will become loose, resulting in a decrease in waterproof performance; The plunger on the upper head is subjected to a large lateral shear force of the gear shifting mechanism, and the end face will be worn out at an accelerated rate, resulting in a change in the action position. This requires that the position tolerance of the switch action point be small, otherwise it is easy to cause the external gear shifting mechanism to stop. Completed, but the switch is not turned on, that is, the total stroke of the down pressure is less than the stroke of the switch action point
The parameters of the existing on-board switches are not adjustable, and the superposition error of the parts leads to the switch accuracy not meeting the expected requirements
Method used
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[0021] In order to solve the problems in the prior art, the applicant conducted a detailed analysis of various solutions in the prior art. In the existing solution, the plug pins (plug-in parts) and the housing are injection molded, that is, integrated and fixed. In this solution, the positioning accuracy of the connector depends on the injection molding accuracy, and the connector cannot be adjusted after the production is completed. During the integral molding manufacturing process, the silver-plated layer on the surface of the connector is easily oxidized, forming an oxide film, which leads to an increase in contact resistance and affects the performance of the switch. At the same time, because the working environment of the on-board switch is very complicated, the oil temperature in the gearbox can reach above 130°C at high temperatures, and in other cases, the temperature may reach minus 40°C, resulting in high and low temperature shocks, and metal inserts. The cold shrin...
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The invention discloses an adjustable vehicle-mounted switch of a plug-in piece, a core assembly and a fabrication method of the vehicle-mounted switch. The adjustable vehicle-mounted switch of the plug-in piece comprises a switch core assembly, wherein the switch core assembly comprises a lower shell and a plug-in pin assembly, the plug-in pin assembly comprises a plug-in pin and a static contact, the static contact is fixed at an end part of the plug-in pin, a group of plug-in holes and glue injection holes are formed in the lower shell, the glue injection holes are arranged among the plug-in holes, one end of the plug-in pin penetrates through the plug-in holes and then extends into the lower shell, a movable space is arranged in the lower shell, is used for the plug-in pin to adjust the position and communicates with the glue injection holes, and fixed glue is accumulated in the movable space and is injected after the plug-in pin is adjusted to a predetermined position. In the adjustable vehicle-mounted switch, the plug-in pin is adjustable, a related parameter can be adjusted according to demands, so that the switch is more accurate to control; and meanwhile, the plug-in pin and the shell are pasted and fixed by the fixed glue, and dual effects of waterproof sealing and connection and fixing can be achieved.
Description
Technical field [0001] The present invention relates to switch technology, especially vehicle-mounted switch technology. Background technique [0002] Vehicle-mounted switches generally adopt the cooperation of an elastic body structure and a plastic shell to realize movement. In the transmission device, the on-board switch plays a very important role. The working performance of the on-board switch is of great significance for the long-term safe and reliable operation of the transmission and the vehicle. [0003] After research, the applicant found that the existing on-board switches mainly have the following problems: the working environment is complex and harsh, and the connectors of the on-board switches will loosen, resulting in a decrease in waterproof performance; the actual action of the external shift mechanism triggers the switch to have a short overall stroke, and The upper head plunger is subjected to a large lateral shear force of the shift mechanism, and the end face...
Claims
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IPC IPC(8): H01H13/06H01H13/10H01H11/00H01H11/04
CPCH01H11/00H01H11/04H01H13/06H01H13/10
Inventor 戴四川
Owner ZHANGZHOU JUANMEI ELECTRIC TECH CO LTD