Outdoor high-voltage permanent magnet type vacuum circuit breaker

A vacuum circuit breaker, permanent magnet technology, applied in high voltage air circuit breakers, high voltage/high current switches, circuits, etc., can solve the problems of unbalance of the moving spindle, easy to malfunction, difficult to work correctly, etc. Effect

Inactive Publication Date: 2009-05-13
HONGXIU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this structure is that the bracket is connected with the insulating pull rod. When the switch is closed, the main axis of motion moves to the left and needs to move upward through the pins hinged by the slide plate and placed in the guide rail, and at the same time push the bracket to move upward. Due to the limitation of the shape of the bracket, when the bracket moves upward, it also needs to drive the main shaft to make a certain upward displacement, resulting in the imbalance of the main shaft, which makes it difficult to work correctly or misoperation easily in actual use.

Method used

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  • Outdoor high-voltage permanent magnet type vacuum circuit breaker
  • Outdoor high-voltage permanent magnet type vacuum circuit breaker
  • Outdoor high-voltage permanent magnet type vacuum circuit breaker

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Figure 1 to Figure 4 A specific embodiment of the invention is shown in which, figure 1 It is a schematic structural diagram of the present invention; Fig. 2 is figure 1 A schematic diagram of the structure of the outdoor high-voltage permanent magnet vacuum circuit breaker when viewed from the side; Figure 3 is figure 1 Partial enlarged schematic diagram of A; Figure 4 yes figure 1 The partial enlarged schematic diagram of B.

[0029] This embodiment is an outdoor high-voltage permanent magnet vacuum circuit breaker, see figure 1 As shown in Fig. 2, an outdoor high-voltage permanent magnet vacuum circuit breaker includes a base 1, three poles 2 disposed on the base 1 and a permanent magnet operating mechanism 3 disposed in the base 1; each pole 2 The outlet bar 21, the static contact electrically connected to the outlet bar 21, the vacuum interrupter 23, the moving contact, the terminal clamp 25 electrically connected to the moving contact, and the insulating pu...

Embodiment 2

[0038] Fig. 5 is a partially enlarged schematic view of the second structure of the present invention, showing a second specific implementation manner of the present invention.

[0039] This embodiment is basically the same as Embodiment 1, except that: when the shaft holes 261 near the bottom ends of the insulating rods 26 are waist-shaped holes extending in the vertical direction, it is more conducive to effectively ensuring the verticality of the insulating push rods. The movement will not be affected by the displacement of the horizontal movement of the drive shaft, thus ensuring the stability and reliability of the opening and closing action.

Embodiment 1 and Embodiment 2

[0040] Embodiment 1 and embodiment 2 have obvious advantages:

[0041] (1) In Embodiment 1 and Embodiment 2, the permanent magnet operating mechanism 3 includes a driving rod 61 arranged in the horizontal direction, and the end of the driving rod 61 is provided with a limit hole 611, and the limit The hole 611 is a waist-shaped hole extending in the vertical direction, and the end of the driving rod 61 is connected to the driving arm 5 through the limiting hole 611; The other end of the drive arm 5 is rotatably connected to the drive spindle hole 41, which is a waist-shaped hole extending in the vertical direction; when the switch is opened and closed in Embodiment 1 and Embodiment 2, the permanent magnet operating mechanism The driving arm drives the transmission main shaft, and then drives the corresponding insulating pull rod 26 to reciprocate in the vertical direction through the transmission mechanism to realize the opening and closing operation; since the limit hole at t...

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Abstract

The invention discloses an outdoor high-voltage permanent-magnetic vacuum circuit breaker; the permanent-magnetic operation mechanism comprises a driving rod which is arranged along the horizontal direction; the end of the driving rod is provided with a waist-shaped hole which extends along the vertical direction; the end of the driving rod is rotatablely connected with a driving arm by a position limit hole; a driving mainshaft hole is a waist-shaped hole which extends along the vertical direction; the other end of the driving arm is connected with a transmission mainshaft by a round shaft pin. The outdoor high-voltage permanent-magnetic vacuum circuit breaker can effectively ensure that the driving rod and the transmission mainshaft can do the horizontal movement or can not move wrongly due to the displacement of the rotation movement of the driving arm.

Description

technical field [0001] The invention belongs to the technical field of power distribution automation equipment, and in particular relates to an outdoor high-voltage permanent magnet vacuum circuit breaker. Background technique [0002] The whole mission of the circuit breaker, in the final analysis, is reflected in the opening and closing actions of the contacts, and the opening and closing actions are realized through the operating mechanism. It plays an extremely important role in the working performance and reliability of the device. The operating mechanism of the switchgear requires more mechanical parts, which not only has high cost, but also has low reliability, because the possibility of rising failure rate is directly proportional to the number of parts. There are two kinds of operating mechanisms commonly used at present: spring mechanism and electromagnetic mechanism. The spring operating mechanism is an operating mechanism that uses the stored energy spring as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66H01H33/666H01H33/38
Inventor 苏杭陈勇郑文秀
Owner HONGXIU ELECTRIC
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