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Alarming contact device of moulded case circuit breaker

A technology for plastic case circuit breakers and alarm contacts, which is applied in the direction of circuit breaker contacts, circuit breaker components, emergency protection devices, etc. Installation, inconvenient installation and other problems, to achieve the effect of simple and reliable assembly process, improved interchangeability, simple and convenient installation

Inactive Publication Date: 2011-01-12
江苏西门控电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing alarm contact is fixedly installed inside the circuit breaker, does not have the function of modular installation, and has a large volume. The replacement and installation requires professional maintenance personnel to operate, which is inconvenient to install and cannot meet the miniaturization, modularization, and general purpose of the circuit breaker. requirements

Method used

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  • Alarming contact device of moulded case circuit breaker
  • Alarming contact device of moulded case circuit breaker
  • Alarming contact device of moulded case circuit breaker

Examples

Experimental program
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Embodiment Construction

[0012] As shown in the figure, the alarm contact device of the low-voltage molded case circuit breaker of the present invention consists of a base (1), a rear cover (2), a push rod (3), a micro switch (4) and a micro switch dial (5) composition, the base (1), the rear cover (2) install and fix the push rod (3), the micro switch (4) and the micro switch dial (5) in the base (1), the base (1) is injection-molded with positioning pins (6) for positioning and installing the micro switch (4) and push rod (3); the micro switch lever (5) is assembled under the action button of the micro switch (4), and One end is fixed on the micro switch (4), and the other end can move up and down freely; the push rod (3) is in the shape of an inverted V as a whole, with one end protruding out of the base (1) for easy operation, and the other end being shorter, on the base (1) It is located under the free end of the micro switch lever (5). Using the principle of leverage, the tripping force of the c...

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Abstract

The invention relates to an alarming contact device of a moulded case circuit breaker. The alarming contact device consists of a base, a rear cover, a push rod, a microswitch and a microswitch toggle plate, wherein the base and rear cover are used for installing and fixing the push rod, microswitch and microswitch toggle plate in the base which is provided with positioning pins for positioning and installing the microswitch and push rod by molding; and based on the principle of lever, the push rod is pushed by enlarging the release force of a circuit breaker mechanism to push the push rod to pry the microswitch toggle plate by using a lower release force with no additional influence on the release force of the circuit breaker body. The alarming contact device has the advantages of adopting modular design, improving interchangeability and universality, along with simple and convenient installation, no influences on the assembly of other accessories after installation in the accessory camber of the circuit break due to the total thickness of 9.5mm only, simple assembly, convenient installation and uninstallation, stable performance and high reliability.

Description

technical field [0001] The invention belongs to the power transmission and distribution equipment industry, and relates to an alarm contact device of a molded case circuit breaker in low-voltage switchgear components. Background technique [0002] With the development of circuit breaker technology, the internal accessories of the circuit breaker, including trip units, auxiliary contacts, alarm contacts, etc., adopt a modular design. The advantage of using modularization is that it can be flexibly matched according to customer requirements. Install, replace. The existing alarm contact is fixedly installed inside the circuit breaker, does not have the function of modular installation, and has a large volume. The replacement and installation requires professional maintenance personnel to operate, which is inconvenient to install and cannot meet the miniaturization, modularization, and general purpose of the circuit breaker. requirements of customization. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/00H01H73/04
Inventor 陈云华张澜
Owner 江苏西门控电器有限公司
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