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Electrical switchgear with rotating mobile contact(s)

A technology for electrical switches and moving contacts, applied in electrical switches, electrical components, protection switches, etc., to solve problems such as discontinuity, pollution, and increased copper

Active Publication Date: 2013-06-19
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Also, in some embodiments, the rotational coupling is performed on the edge of the movable contact, which can cause contamination and lead to the disadvantage of discontinuity
[0005] Also, in these embodiments, it is difficult to increase the creepage distance since the separated bulkheads would exceed the dimensions
[0006] Furthermore, the complex shape of the contacts means that the amount of copper has to be increased accordingly

Method used

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  • Electrical switchgear with rotating mobile contact(s)
  • Electrical switchgear with rotating mobile contact(s)
  • Electrical switchgear with rotating mobile contact(s)

Examples

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Embodiment Construction

[0030] For purposes of illustration, these figures show the application of the invention to an electrical switching unit such as a differential switch of the type described in French patent FR 2870987 .

[0031] This electrical unit is likewise well known and, since it is not the subject of the present invention, it will not be described in detail here. Only elements necessary for understanding the present invention will be described.

[0032] The electrical unit A comprises in a housing B, in a known manner, a movable contact holder 4 , 5 mounted to rotate in the housing B; a movable contact 2 mounted facing at least one stationary contact 3 . The movable contact holder is mounted to rotate between an open position of the contacts, in which the movable contact 2 is separated from the static contact 3, and a closed position, in which the movable contact 2 is pressed against the On the static contact 3.

[0033] This movable contact bracket comprises a first bracket 4 mounted...

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PUM

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Abstract

The apparatus (A) has a set of movable contact supports e.g. rotating contact-carrier shaft (4), for supporting a set of movable contacts (2), which is arranged with respect to a set of fixed contacts (3). Each support is rotatably mounted between an opening position and a closing position. A contact pressure ensuring spring (15) ensures contact pressure between the fixed and movable contacts. Locking units lock another set of contact supports (5) in the former set of supports, where the units are activated during insertion of the movable contacts in the contact supports (5).

Description

technical field [0001] The present invention relates to an electrical switching unit housed in an insulating housing and comprising a contact holder supporting at least one movable contact, the or each movable contact being arranged to face a At least one static contact of the unit, the bracket is mounted to rotate between an open position, where the movable contact is separated from the static contact, and a closed position, where the movable contact is separated from the fixed contact, and a closed position, where the movable contact is separated from the Static contact. Background technique [0002] Known patents US 5794763, FR 2717613 and EP 0773566 disclose devices comprising the features described above. In these embodiments, the movable contact is mounted in a contact support shaft and a spring is placed between the contact and the shaft so that the spring retains the contact in its Contact pressure is provided between the contact and the static contact. [0003] A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/02H01H73/04H01H1/22H01H1/50
CPCH01H1/226H01H1/225
Inventor 劳伦特·普里维厄克斯伊维斯·布龙克劳德·伯诺特罗兰·马斯纳达
Owner SCHNEIDER ELECTRIC IND SAS