Bared electric resistance wire and its processing technology
A processing technology and technology of resistance wire, which is applied in the direction of resistors, resistance manufacturing, spiral coil/screw disk resistance elements, etc., can solve the problem of easy deformation of resistance wire, and achieve the effect of uniform wire pitch
Inactive Publication Date: 2008-12-31
杭州热威电热科技股份有限公司
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Problems solved by technology
[0003] The present invention aims to solve the above-mentioned shortcomings of the prior art, and provides a bare resistance wire supported by a support frame and its processing technology, which solves the problem that the traditional resistance wire is easily deformed after long-term use
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[0017] The present invention will be further described below in conjunction with accompanying drawing:
[0018] The exposed resistance wire includes a resistance wire 1 and two insulating and heat-resistant support frames 2 arranged side by side. In this embodiment, the support frame 2 is made of mica. There is a gap between the two support frames 2; a set of equally spaced card slots 2-1 are formed on the upper and lower sides of each support frame 2, and the card slots 2-1 are in a zigzag shape. The resistance wire 1 is alternately stuck in the slots 2-1 of the two support frames, spirally wound on the two support frames 2, and the resistance wire 1 is only in contact with the support frame 2 at the part of the slot 2-1 .
[0019] The processing technology of this above-mentioned exposed type resistance wire, comprises the following steps:
[0020] 1) Take an insulating heat-resistant material and make it into two strip-shaped support frames 2, and open a group of equally ...
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The invention mainly relates to a naked resistance wire, comprising resistance wire and two parallel supporting frames, where there is a gap remained between the two supporting frames, the upper and lower sides of each supporting frame are made with a group of fastening grooves, respectively; the resistance wire is fastened in the fastening grooves, in order and staggeredly, and coiled spirally on the two supporting frames, and the manufacturing process includes the steps of: 1) taking insulating heat-resistant material to make it into two strip-like supporting frames and making a group of fastening grooves on the upper and lower sides of each supporting frame, respectively; 2) arranging in parallel the two supporting frames and remaining a certain gap between them; 3) coiling the resistance wire spirally on the two supporting frames. The beneficial effects: two mica pieces serving as supporting framework makes the coiled resistance wire possess a certain mechanical strength, and the drooping deformation can not occur even though the resistance wire is electrified for long time and simultaneously, it can guide the flowing of the air.
Description
technical field [0001] The invention relates to a resistance wire, in particular to a helically wound bare resistance wire and its processing technology. Background technique [0002] The traditional wire winding method is to wind the resistance wire into a helical shape, and then draw a certain distance. In this way, the wound resistance wire has no support and is easily deformed. After the traditional resistance wire placed horizontally is energized for a long time, the resistance wire will sag; after the traditional resistance wire placed vertically is energized for a long time, the resistance wire will have uneven wire pitch. Therefore, the use effect of traditional resistance wire is not good, and the service life is short. Contents of the invention [0003] The present invention solves the above-mentioned shortcomings of the prior art, provides a bare resistance wire supported by a support frame and its processing technology, and solves the problem that the traditi...
Claims
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IPC IPC(8): H01C3/14H01C17/00H01B13/00
Inventor 吕越斌宋军国
Owner 杭州热威电热科技股份有限公司