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Assembled aluminum shell wire wound resistor

A technology of wire-wound resistors and aluminum shells, which is applied in the directions of resistor shells/packaging shells/potting, spiral coils/screw disk resistor elements, resistor terminals/electrodes, etc. Adjustment and other issues, to achieve the effect of strong ability to resist instantaneous high pulse and large current, high flexibility, and shorten production time

Inactive Publication Date: 2020-05-08
安徽省昌盛电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an assembled aluminum casing wirewound resistor for the cumbersome and unadjustable preparation process of the existing high-power wirewound resistor

Method used

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  • Assembled aluminum shell wire wound resistor
  • Assembled aluminum shell wire wound resistor
  • Assembled aluminum shell wire wound resistor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as Figure 1-3 As shown in , an assembled aluminum shell wire wound resistor, a combined resistor body is set in the aluminum shell, and the combined resistor body includes a plurality of hollow porcelain tubes, and the hollow porcelain tubes include a first porcelain tube 1, a second porcelain tube Porcelain tube 3 and third porcelain tube 4, both sides of the first porcelain tube 1 are provided with annular protrusions 11, and an alignment cap 2 is arranged outside the annular protrusion 11. A matching annular cylinder, the side of the alignment cap 2 close to the first porcelain tube 1 is provided with a first annular groove 21 matching the thickness of the first porcelain tube 1, and in the first annular groove 21 is provided with an annular protrusion 11 matches the second annular groove 22; the first porcelain tube 1 is wound with a metal wire 5, and the two ends of the metal wire 5 are respectively arranged on the annular protrusion 11, and are pressed by th...

Embodiment 2

[0032] On the basis of embodiment 1, the inner cap 8 is replaced by a temperature-sensitive cap 9, as Figure 4-6 As shown, the temperature-sensing cap 9 is made of a conductive material and has an integrally formed structure. The main body is a cylindrical cylinder with one end open. The third annular groove 93 matched by the alignment cap 2;

[0033] Described temperature sensing block cap 9 main bodies are provided with temperature sensing body 98, upper connecting conductor 96, lower connecting conductor 95 and locator 99, when upper connecting conductor 96 and lower connecting conductor 95 are vertical state (as Figure 4 As shown), a temperature-sensitive body 98 is provided in the main body of the temperature-sensitive cap 9 on the left side. At this time, the top surface of the upper connecting conductor 96 and the bottom surface of the lower connecting conductor 97 are respectively in contact with the temperature-sensitive cap 9; the upper connecting conductor 96 and ...

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Abstract

The invention belongs to the technical field of electrical elements and relates to an assembled aluminum shell wire wound resistor. A combined resistor body is arranged in an aluminum shell and comprises a plurality of hollow porcelain tubes, annular protrusions are arranged on two sides of each hollow porcelain tube, wire fixing caps are arranged outside the annular protrusions, the different hollow porcelain tubes are fixed through connecting lantern rings, and leads are led out of the two ends through an outer cover cap and an inner cover cap. Compared with the prior art, by using the resistor of the invention, there are the following advantages that each hollow porcelain tube is an independent structure and is fixed by an alignment cover cap after wire winding, and each hollow porcelain tube can be separately processed in production and processing; a capability of resisting an instantaneous high pulse and a large current is stronger; compared with an existing mode of sequentially winding from inside to outside, the mode of the invention has high flexibility, and winding density of each layer or a specification of metal wires can be adjusted according to actual requirements; andthe connecting lantern rings, the outer cover cap and the inner cover cap are convenient to install and good in stability, production time can be shortened, and later maintenance is facilitated.

Description

technical field [0001] The invention belongs to the technical field of electrical components, and in particular relates to an assembled wire-wound resistor with an aluminum shell. Background technique [0002] Aluminum casing wirewound resistors are used as an important part to protect the overcurrent generated during the charging and discharging process during the start or stop of electrical control. They are mainly used in the fields of electric transmission equipment, new energy vehicles and industrial robots. The main performance is to absorb a large amount of Pulse or high current, so the instantaneous power of the product is very important. The current product on the market is to encapsulate a ceramic tube wound with a metal wire in an aluminum shell, but due to the limited area of ​​the ceramic tube, the length of the metal wire is limited. As a result, the ability to absorb pulses or large currents in an instant is not strong; in order to solve the aforementioned pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C1/02H01C1/14H01C3/14
CPCH01C1/02H01C1/14H01C3/14
Inventor 陈林姚志国刘同高洁葛文杰李福喜杨敬雷
Owner 安徽省昌盛电子有限公司