Unlock instant, AI-driven research and patent intelligence for your innovation.

Base of low-voltage circuit breaker

A low-voltage circuit breaker, bottom surface technology, applied in circuits, parts of protection switches, electrical components, etc., can solve problems such as poor heat dissipation of contacts, and achieve the effect of good heat dissipation performance

Active Publication Date: 2011-05-18
XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a base of a low-voltage circuit breaker, the main purpose of which is to overcome the disadvantage of poor heat dissipation of the contacts located in the middle of the existing low-voltage circuit breaker

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Base of low-voltage circuit breaker
  • Base of low-voltage circuit breaker
  • Base of low-voltage circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0014] This embodiment provides a base of a low-voltage circuit breaker, which is used for assembling a contact system and related components of the low-voltage circuit breaker. refer to figure 1 , the base includes a base main body 1, and the base main body 1 is provided with three mutually parallel contact grooves 2, 3, 4 for respectively assembling three pairs of dynamic and static contacts. Two adjacent contact grooves 2 and 3 , 3 and 4 are respectively separated by middle groove walls 23 and 34 , and the outer side walls of the two contact grooves 2 and 4 on both sides are 20 and 40 .

[0015] refer to Figure 1 to Figure 3 , the above-mentioned middle groove walls 23, 34 and the bottom wall of the base body 1 are provided with heat dissipation channels 6, 7 respectively, and the heat dissipation channels 6, 7 connect the contact groove 3 in the mi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A base of a low-voltage circuit breaker comprises a base body which is provided with at least three contact grooves which are parallel mutually, adjacent contact grooves are separated by a middle groove wall, and the middle groove wall and the bottom wall of the base body are provided with a heat-dissipation channel which communicates the contact groove positioned in the middle part with the space outside the side wall of the base body. Heat generated when moving and static contacts in the contact groove positioned in the middle part work can be quickly discharged from the side surface of thebase body through the heat-dissipation channel, thus causing the circuit breaker to reach good heat-dissipation performance.

Description

technical field [0001] The invention relates to the structure of a low-voltage circuit breaker, in particular to the base of the low-voltage circuit breaker. Background technique [0002] The low-voltage circuit breaker is the main switching device of the low-voltage power supply and distribution system. It can connect, carry and break the normal working current, and can also break the over-current and short-circuit fault current. It can perform various protection functions, such as overload, short-circuit, under- voltage, single-phase grounding and leakage etc. [0003] The main structure of a low-voltage circuit breaker includes a contact system, a release, an operating mechanism, an arc extinguishing system, etc. These components are assembled by a supporting device, which includes a base and an upper cover. The contact system usually includes at least three pairs of dynamic and static contacts. The base is correspondingly provided with at least three contact slots. Each...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/02
Inventor 汪泰宇曾梓毅齐志华
Owner XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD