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Plastic-shell circuit breaker with switching-off and switching-on indicating mechanism

A technology of opening and closing indication, molded case circuit breaker, applied in circuit breaker parts, switch status indication and other directions, can solve the problems of ambiguous status indication, loss, misoperation, etc., and achieve the effect of clear and intuitive display of opening and closing status

Active Publication Date: 2014-04-09
HUANYU GRP ZHEJIANG HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional molded case circuit breakers generally use this method to display the different states of opening and closing, but for beginners, because this state indication is relatively vague, only the relative position of the indicating rod relative to the upper surface of the cover plate is used. It is often difficult to correctly distinguish the closing or opening state, resulting in misoperation and unnecessary losses.

Method used

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  • Plastic-shell circuit breaker with switching-off and switching-on indicating mechanism
  • Plastic-shell circuit breaker with switching-off and switching-on indicating mechanism
  • Plastic-shell circuit breaker with switching-off and switching-on indicating mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Figure 1 to Figure 5 A first embodiment of the invention is shown in which, figure 1 It is a schematic diagram of a three-dimensional structure of the present invention; figure 2 for figure 1 An exploded schematic diagram of the opening and closing handle and cover plate in the molded case circuit breaker shown; image 3 for figure 1 A schematic diagram of a three-dimensional structure of the upper cover in the molded case circuit breaker shown; Figure 4 for figure 1 A schematic diagram of a three-dimensional structure of the panel in the molded case circuit breaker shown; Figure 5 for figure 1 A schematic diagram of a three-dimensional structure of the opening and closing handle in the molded case circuit breaker shown.

[0028] This embodiment is a low-voltage molded case circuit breaker with an opening and closing indicating mechanism, see Figure 1 to Figure 5 , including a base 1, a cover plate 2, a static contact 3, a moving contact 4, and an operating...

Embodiment 2

[0032] This embodiment is basically the same as Embodiment 1, except that: in this embodiment, one side end of the panel 22 is hinged to the upper cover 21 , and the other side end is snapped to the upper cover 21 . This embodiment has the advantage that the installation operation of the upper cover is more convenient and quick.

Embodiment 3

[0034] Figure 6 It is a schematic diagram of the internal structure of the present invention, showing the second specific embodiment of the present invention.

[0035] This embodiment is basically the same as Embodiment 1, the difference is that: the auxiliary arc extinguishing part 41 made of nylon plastic is fixed on the moving contact 4, and the auxiliary arc extinguishing part 41 is located between the moving contact 42 and the moving contact 42. between the rotating shafts 43 of the contacts 4 .

[0036] The base 1 is provided with placement grooves for placing the static contacts 3, and each placement groove is fixed with an arc extinguishing cover 12 and an arc extinguishing reinforcement 13 made of nylon plastic, and the arc extinguishing The reinforcing member 13 is provided with a limiting groove 131 , and the static contact 31 on the static contact 3 is located in the limiting groove 131 .

[0037]In this embodiment, auxiliary arc extinguishing parts 41 and arc e...

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PUM

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Abstract

The invention discloses a plastic-shell circuit breaker with a switching-off and switching-on indicating mechanism, comprising a base, a cover plate, a static contact, a moving contact and an operating mechanism with a switching-off and switching-on handle, wherein the switching-off and switching-on handle comprises a base part, two guide parts and a handle part; the two guide parts are respectively positioned at the left side end and the right side end of the base part; the handle part is positioned at a boss at the center of the base part; at least one guide part is provided with a switching-off indicating area and a switching-on indicating area which are marked by adopting different colors; the cover plate is provided with an observation hole; the guide parts do reciprocating motion along with the switching-off and switching-on handle; after switching-off operation, the switching-off indicating area rotates to be just below the observation hole; and after switching-on operation, the switching-on indicating area rotates to be just below the observation hole. The plastic-shell circuit breaker has the advantages that the display of the switching-off and switching-on states is clearer and more intuitive.

Description

technical field [0001] The invention belongs to the technical field of structural design of low-voltage molded case circuit breakers, and in particular relates to a molded case circuit breaker with an opening and closing indicating mechanism. Background technique [0002] In the existing molded case circuit breaker, the opening and closing indicating mechanism generally includes an indicating rod and a return spring, and a through hole is arranged on the cover plate, the top of the indicating rod is located in the through hole, and the bottom end of the indicating rod is located in a certain position. above the two moving contacts; when closing, the moving and static contacts are closed, and under the action of the return spring, the top of the indicator rod is sunk in the through hole of the cover plate without being exposed, thus showing the closing state; when opening, the moving and static contacts are connected with the static The contact separates and springs up, withs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H73/12
Inventor 周安跃王小伦范建影
Owner HUANYU GRP ZHEJIANG HIGH TECH CO LTD