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Contact protector

A protector and circuit technology, which is applied in emergency protection devices, overload protection circuit breakers, relays, etc., can solve the problems of bulky power control equipment, no self-protection ability, single function, etc., and achieve material saving and maintenance. Trouble, size reduction effect

Inactive Publication Date: 2004-05-12
黄信琰
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] At present, the switching appliances used in the power distribution system, such as AC contactors, protective appliances, thermal relays, and automatic air circuit breakers, have single functions and their own characteristics, and their defects are also obvious. For example, the contactor has a long life and is easy to operate, but there is no Self-protection ability, must cooperate with thermal relay in use
The circuit breaker series has various protection features, but the short life, large size, manual operation and other reasons lead to the large size, high cost, inconvenient transportation and high cost of the complete set of electric power control equipment.

Method used

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Embodiment approach

[0044] 5.1 Through the efforts of several generations, my country's industrial electrical appliance manufacturing industry has achieved good development in terms of variety, scale and technology. Especially in the past two decades of reform and opening up, various advanced business models and technologies have enabled enterprises to Standardization, mold manufacturing, and electrical performance verification all have specific theoretical guarantees and practical experience.

[0045] 5.2 The design of this product is a brand-new concept, but the selection of materials is universal, the mold manufacturing of parts is also easy to process, and the performance verification equipment is already available in China, so it is not difficult to manufacture.

[0046] 5.3 At present, there are many manufacturers in the electrical industry, and there are also many companies that can produce contactors, circuit breakers, and thermal overload relays. As long as a small-scale enterprise has de...

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Abstract

The present invention belongs to the field of low voltage apparatus. Its technical key lies in characteristic combination of on-off and protection, forced point of elastic force and counterforce combination and arc-extinguishing and vibration absorption. It is a direct-acting double-break contact three-layer stereo-arrangement, its structure is compact, the contact and protection element are connected together, and have the double functions of switch and protection. It can be used in the power circuit whose frequency is AC 50(60)Hz, voltage is to 670V (1200V) and current is 6A-4500A, and has the protection action for overload, low-voltage, short-circuit and open-phase in the circuit, and can be used for protecting electric equipments of motor, etc.

Description

1. Technical field [0001] This product belongs to the low-voltage electrical appliances of mechanical and electrical engineering. The following standards are met and applied. [0002] a.GB / T14048.1--1993 Low-voltage switchgear and control equipment. [0003] b.GB / 14048.2--1994 Low-voltage switchgear and control equipment low-voltage circuit breakers. [0004] c.GB / 14048.4--1993 Low-voltage opening equipment and control equipment, low-voltage electromechanical connection [0005] contactors and motor starters. [0006] d.JB8589--1997 DZ20 series plastic case circuit breaker. [0007] e.JB8590.1--1997 DW15 series universal circuit breaker. [0008] f.JB8591.1--1997 CJ20 series AC contactor. [0009] g.JB8591.3--1997 CJ40 series AC contactor. [0010] h.JB8627--1997 thermal overload relay. [0011] i.JB8590.2--1997 DW16 series universal circuit breaker. 2. Background technology [0012] At present, the switching appliances used in the power distrib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H51/00H01H75/00
Inventor 黄信琰
Owner 黄信琰
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