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Electrical switch

An electrical switch and electromagnetic technology, applied in the field of electrical switches, can solve problems such as voltage rise, and achieve the effect of protecting the charging process

Active Publication Date: 2020-05-08
LISA DRAXLMAIER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the arc is interrupted very quickly, it will cause a voltage increase, which may need to be counteracted by parallel connected components to limit the overvoltage

Method used

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  • Electrical switch
  • Electrical switch
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Examples

Experimental program
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Effect test

Embodiment Construction

[0035] figure 1 An electrical switch 100 according to a first embodiment is shown. The electrical switch 100 has two contact pieces 102 , 104 which make contact in a contact position 106 . The electric switch is thus closed. The first contact piece 102 is configured rigidly. The second contact piece 104 is arranged movable about an axis of rotation 108 . Furthermore, the switch has a third contact piece 110 . The second contact 104 and the third contact 110 are electrically connected to each other. This is achieved by means of a flexible wire 112 , one end of which is connected to the second contact 104 and the other end of which is connected to the third contact 110 . A threaded contact 114 for connection to a current path of a voltage source, for example in a motor vehicle, is provided on the first contact piece 104 and the third contact piece 110 . Furthermore, electrical switch 100 includes a non-conductive separating element 116 and an actuator unit 118 connected t...

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PUM

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Abstract

Provided is an electrical switch (100) for interrupting a current path, in particular of a voltage supply in a motor vehicle, comprising a contact point (106) which is formed from a first contact piece (102) and a second contact piece (104) which is mounted such that it can move about a rotation axis (108). Here, the contact point (106) is electrically closed when the two contact pieces (102, 104)are in contact and is electrically opened when the two contact pieces (102, 104) are not in contact. Furthermore, the electrical switch (100) comprises an actuator unit (118) and an electrically non-conductive isolating element (116) which can be moved in a translatory manner by means of the actuator unit (118) and is designed to isolate the two contact pieces (102, 104) from one another and thento keep said two contact pieces apart in order to open and to keep open the contact point (106) and to act as an insulator between the contact faces. The actuator unit (118) comprises a movement element (120) which is mechanically coupled to the isolating element (116), a drive device (122) which is designed to move the movement element (120) in a first movement direction (128) in order to closethe contact point (106), a device (126) for generating and / or storing kinetic energy, which device is designed to move the movement element (120) and / or the isolating element (116) in a second movement direction (130), which is opposite to the first movement direction (128), in order to open the contact point (106), and an electromagnetic actuator (124).

Description

technical field [0001] The invention relates to an electrical switch for interrupting a current path, in particular for interrupting a current path of a DC voltage source in a motor vehicle. Background technique [0002] The invention is mainly described below in connection with switching elements for an on-board electrical network in the high voltage (HV) range of 48 volts or more than 60 volts, or between 400 volts and 1000 volts as is common for motor vehicles. within the HV voltage range. However, the invention can be used for all applications in which electrical loads are switched. [0003] Currently, in motor vehicles, the separation of the HV battery in the HV on-board electrical system takes place at all poles with a total of two high-voltage contactors. On the positive side, the high voltage contactor is followed by an additional HV fuse for insurance. In front of the contactor, a pyrotechnic fuse (pyrotechnic safety device) can also be provided on this side, as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/06H01H9/32H01H3/40
CPCH01H3/40H01H9/32H01H33/06H01H33/42H01H33/46
Inventor 法比安·渥埃勒米夏埃尔·沃尔特贝格
Owner LISA DRAXLMAIER GMBH