Electromagnetic coil and manufacture method thereof

Abstract

The invention provides an electromagnetic coil and a manufacture method thereof, wherein the electromagnetic coil comprises a coil injection molding member, one side of the coil injection molding member is provided with a connecting structure used for connecting a power cable part with a pin. The electromagnetic coil also comprises a housing, wherein the housing covers the connecting structure and is welded and connected with the coil injection molding member. In the electromagnetic coil and the manufacture method thereof, provided by the embodiment of the invention, a die structure can be simpler through designing the welding connection of the coil injection molding member and the housing as a split structure, the problem of complicated structure of the traditional electromagnetic coil is solved; meanwhile, the split structure is beneficial to the installation of the power cable part to ensure that the process is more reasonable.

Description

technical field [0001] Embodiments of the present invention relate to electromagnetic control components, in particular to an electromagnetic coil and a manufacturing method thereof. Background technique [0002] Existing solenoid coils can usually be Figure 1 ~ Figure 3 Three structural forms are shown. in, figure 1 It is a structural schematic diagram of Embodiment 1 of an electromagnetic coil in the prior art. The electromagnetic coil is an integral casing structure, that is, the injection molded part of the coil is integrally nested inside the casing structure; figure 2 It is a structural schematic diagram of the second embodiment of the electromagnetic coil in the prior art. The electromagnetic coil has an integral injection molding structure, that is, the casing structure and the coil injection molded part structure are completed by one-time injection molding of the mold; image 3 It is a structural schematic diagram of the third embodiment of the electromagnetic ...

AI Technical Summary

Problems solved by technology

In the above three structures, the coil injection molded part and the casing are integral structures, and cannot be separated in one integral molding

[0003] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: Figure 1 ~ Figure 3 It can be seen that the integral injection molding structure of the above-mentioned coil injection molded part and cover has a relatively complicated shape, which makes the mold and process of manufacturing the integral structure relatively complicated; in addition, the above three structures are due to the The shell is an integral structure that cannot be separated, which is not conducive to the installation of cable components, such as, image 3 In the middle, only the plug-in contact between the cable terminal and the pin is used, which may cause the connection to be unstable

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