Fixed structure for ceramic cover and yoke iron plate of direct current contactor
A DC contactor, fixed structure technology, applied in relays, electromagnetic relays, electromagnetic relay detailed information and other directions, can solve the problems of easily damaged ceramic covers, cumbersome production processes, rising production costs, etc., to protect from damage and reduce production. Difficulty and the effect of reducing production costs
Active Publication Date: 2017-02-22
XIAMEN HONGFA ELECTRIC POWER CONTROLS
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Problems solved by technology
The fixed structure of the ceramic cover and the yoke iron plate of the DC contactor in the prior art includes a brazing structure, a special metal and a laser welding structure. Due to the use of secondary welding, the production process is cumbersome and the production cost is also caused. In addition, due to the small elasticity of the ceramic material, the special metal is directly welded and fixed to the ceramic cover, which is easy to damage the ceramic cover
Method used
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Embodiment
[0028] see Figure 1 to Figure 8 As shown, the fixed structure of the ceramic cover and the yoke iron plate of a DC contactor of the present invention includes a ceramic cover 1 and a yoke iron plate 2; The iron plate 2 is installed at the bottom end of the ceramic cover 1 to enclose an inner cavity for providing a space for fitting the moving and static contacts; nail parts 3 pass between the periphery of the yoke iron plate 2 and the bottom end of the ceramic cover 1 Fixed phase connection.
[0029] In this embodiment, the bottom end of the ceramic cover 1 is provided with a boss 12 protruding in the horizontal direction, and the boss 12 is provided with a first installation hole 13, and in the yoke plate 2, corresponding to the boss 12 The position of the first installation hole 13 is provided with a second installation hole 21, and the nail part 3 is fixed between the first installation hole 13 of the ceramic cover and the second installation hole 21 of the yoke.
[0030...
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The invention discloses a fixed structure for a ceramic cover and a yoke iron plate of a direct current contactor. The fixed structure comprises the ceramic cover and the yoke iron plate, wherein the ceramic cover is provided with a concave cavity in which a downward opening is formed; the yoke iron plate is arranged at the bottom end of the ceramic cover so as to encircle an inner cavity for providing a dynamic and static contact matching space; and the periphery of the yoke iron plate and the bottom end of the ceramic cover are fixedly connected through parts such as nails. According to the fixed structure, through a mechanical fixing manner, original specific metals and secondary welding structures are cancelled, the manufacturing difficulty can be reduced, the manufacturing cost can also be reduced, and the ceramic cover can also be protected from being damaged in the assembling process.
Description
technical field [0001] The invention relates to a DC contactor, in particular to a fixing structure of a ceramic cover and a yoke iron plate of the DC contactor. Background technique [0002] A contactor is an automatic control appliance that uses a coil to flow current to generate a magnetic field to close the contacts to control the load. [0003] A DC contactor usually includes a ceramic cover and a yoke plate, wherein the ceramic cover is made of ceramic material, the yoke plate is made of a magnetically conductive metal material, the ceramic cover is provided with a cavity with the opening facing downward, and the yoke The plate is fixed at the bottom of the ceramic cover, and an inner cavity is surrounded by the ceramic cover and the yoke iron plate, and the moving and static contacts of the DC contactor are fitted in the inner cavity. The fixing of the ceramic cover and the yoke iron plate of the DC contactor in the prior art is realized by brazing and laser welding....
Claims
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IPC IPC(8): H01H50/04
CPCH01H50/045
Inventor 陈松生钟叔明施生圣简勇奇
Owner XIAMEN HONGFA ELECTRIC POWER CONTROLS