Single-gear aluminum shell boat-shaped resistor
A technology of resistors and gear aluminum, which is applied in the direction of resistor installation/support, spiral coil/screw disk resistance elements, etc., can solve the problem that it is not suitable for mass industrial production, the central position of the resistance wire cannot be ensured, and the protection ability of the resistance wire is weakened and other issues, to achieve the effect of heat dissipation performance guarantee, fast speed and reasonable process
Active Publication Date: 2012-05-09
上海克拉电子有限公司
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Problems solved by technology
[0003] This design structure has some disadvantages. The resistor is often in a vibration environment during use. The filling medium will inevitably loosen after a long period of vibration, and the medium’s ability to protect the resistance wire will gradually weaken, which affects the service life of the resistor. The process of filling the medium Among them, the positioning of the resistance wire cannot be guaranteed, and it cannot be ensured that the resistance wire is in the center of the alloy shell, resulting in uneven heat dissipation of the resistor and affecting performance; the wire and the resistance wire are connected by riveting, and it is easy to There is an open circuit phenomenon; the installation of mica sheets in the aluminum alloy shell is done manually. This process not only wastes time, but also often finds that the mica sheets fall out during the next process after loading, which is not suitable for mass industrial production.
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[0020] Such as Figure 2-4 As shown, a single-gear aluminum housing boat-shaped resistor includes an aluminum alloy housing 1, a wire 2, a resistance wire 3, a mica sheet 4, and a mounting bracket 5. The mounting bracket 5 is arranged above the mica sheet 4 and also includes The porcelain frame 6 and the mica sheet 4 cover and fix the porcelain frame 6 on the aluminum alloy shell 1, and the mica sheet 4 is arranged between the aluminum alloy shell 1 and the mounting bracket 5. A porcelain frame 6 is provided in the aluminum alloy housing 1. The porcelain frame 6 includes a wire hole 61, two grooves 62, a card slot 63, and a square hole 64. The wire hole 61 is arranged at one end of the porcelain frame 6, and the two grooves 62 are arranged On both sides of the center line of the wire hole 61, and symmetrical about the center line, the card slot 63 is arranged on the groove 62 at one end close to the wire hole 61, and the square holes 64 are arranged at the bottom of the two gro...
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The invention relates to a single-gear aluminum shell boat-shaped resistor. The resistor comprises an aluminum alloy shell (1), a lead (2), a resistance wire (3), a mica sheet (4) and a mounting bracket (5), wherein the mounting bracket (5) is arranged above the mica sheet (4); the resistor also comprises a porcelain rack (6), wherein the porcelain rack (6) is arranged in the aluminum alloy shell (1); the lead (2) and the resistance wire (3) are riveted and arranged in the porcelain rack (6); and the mica sheet (4) covers the porcelain rack (6) and is fixed in the aluminum alloy shell (1). Compared with the prior art, the resistor has the advantages of good shock resistance, uniform heat dissipation, long service life, high efficiency and the like.
Description
Technical field [0001] The invention relates to a resistor, in particular to a single-gear aluminum shell boat-shaped resistor. Background technique [0002] Currently widely used resistors for cooling fans of the same type of automotive air conditioner condensers generally use single-gear aluminum housing resistors. Specifically, the alloy resistance wire of a certain specification and model is wound into a spring shape and then put into a boat-shaped alloy aluminum shell, and an insulating mica sheet is added to the aluminum alloy shell to tightly fill the insulating heat conduction medium for the fixed resistance wire, and use the resistor to divide the voltage to limit the current. Function to protect the fan. The widely used resistor structure of this type is figure 1 As shown, figure 1 Among them, 1 is an aluminum alloy shell, 2 is a wire, 3 is a resistance wire, 4 and 5 are mica sheets, and 6 is a mounting bracket. When installing, first install the 5 mica sheets on the ...
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Inventor 姚易宙骆晶晶
Owner 上海克拉电子有限公司