High-voltage DC on-off device

A high-voltage DC switch-breaker technology, applied in the electric power field, can solve the problems of unreasonable internal structure of high-voltage DC switch-breaker, difficult-to-contact chamber compression, poor sealing and flatness, etc., to ensure consistency and dimensional stability. The effect of high safety, high safety, and improved versatility

Pending Publication Date: 2018-08-14
苏州超云新能源有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, ceramic materials have only low elasticity, which means that less expensive press-in or snap-in connections cannot be used, which makes it difficul

Method used

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are included within the protection scope of the present invention.

[0029] Such as Figure 1 to Figure 3 As shown, the present invention discloses a high-voltage DC circuit breaker, which includes a housing 400 and a contact chamber 100 and an electromagnetic conversion chamber 500 disposed therein. Like the prior art, a first contact member is arranged in the contact chamber 100 200 and the second contact member 300 , the first contact member 200 and the second contact member 300 have the same shape and both include a fixed point 1 arranged inside the contact chamber 100 and a lead-out end 2 arranged outside the contact chamber 100 .

[0030] The first contact ...

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PUM

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Abstract

The invention discloses a high-voltage DC on-off device. The high-voltage DC on-off device comprises an outer shell, a contact chamber and an electromagnetic conversion chamber; the contact chamber and the electromagnetic conversion chamber are arranged at the interior of the outer shell a drive rod in the electromagnetic conversion chamber moves up and down to drive a contact bridge in the contact chamber to move up and down and further enable a movable contact and a fixed contact to be connected or disconnected; the contact chamber is closed space formed by a guiding bottom plate and an inner shell covering the guiding bottom plate by adopting an insertion form; the guiding bottom plate and the inner shell are made of arc resistant plastic; and the electromagnetic conversion chamber is ametal framework is formed by encircling a shielding bracket and a shielding upper plate. The high-voltage DC on-off device is simple in structure, good in arc resistance and long in service life.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a high-voltage direct current switch. Background technique [0002] High-voltage DC circuit breakers are used to switch high-voltage electrical loads, such as the connection between the battery box of a new energy vehicle and the PDU. This type of circuit breaker includes a contact chamber, which has high requirements with regard to possible operating temperatures, permissible internal pressure, electrical insulation capacity and arc resistance. [0003] Conventionally, contact chambers of this type are manufactured from common plastic materials, resulting in advantages in terms of production and assembly. For example, the elastic properties of plastic materials can be used to create press-fit or other elastic connections. However, the thermal resistance and electrical insulation capabilities of plastic materials are limited. The flame impingement caused by ...

Claims

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Application Information

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IPC IPC(8): H01H50/02H01H50/16H01H50/64
CPCH01H50/023H01H50/16H01H50/641Y02E60/60
Inventor 陈亮赵积玮刘颖
Owner 苏州超云新能源有限公司
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