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Switches and protection devices for high-voltage on-board electrical networks

A technology of protection device and electrical network, applied in the direction of emergency protection device, electric switch, protection switch, etc., can solve the problem of increasing the cut-off time and so on

Active Publication Date: 2018-09-14
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, due to the parallel connection, manufacturing-related component tolerances have to be taken into account, which thus increases the achieved switching times

Method used

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  • Switches and protection devices for high-voltage on-board electrical networks
  • Switches and protection devices for high-voltage on-board electrical networks
  • Switches and protection devices for high-voltage on-board electrical networks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] exist figure 1 A switch and protective device 1 according to a first embodiment is shown in . The switch and protective device 1 has a hermetically sealed housing 2 from which two fixed contacts 3 lead out. An HV conductor (high voltage conductor) 4 can be connected to the fixed contact 3 , which, for example, connects the switch and protective device 1 to a HV battery (not shown) and an intermediate circuit. The switching and protective device 1 also has a bridge 5 which consists of an electrical insulator. Said bridge 5 is connected to a guide rod 6 which leads from the housing 2 downwards. The guide rod 6 can be moved upwards by magnetic force against a spring or similar actuator. The bridge 5 is connected to two contact elements 7 . The contact elements 7 each have a contact piece 8 and a hollow cylinder part 9 , which are connected to one another via a base element 10 . A fuse 12 in the form of a wire 11 is arranged electrically conductively between the hollow...

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PUM

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Abstract

The invention relates to a switch and protection device (1) for a high-voltage vehicular electrical network, comprising a DC voltage switch and a fuse protection device (12), wherein the DC voltage switch has a housing (2), at least two a fixed contact (3) and a bridge (5), said bridge being movable relative to said fixed contact (3), wherein said bridge (5) consists of an electrical insulator, wherein Two contacts (8) are arranged on the bridge (5), the contacts (8) being arranged on the bridge (5) in such a way that the contacts The shaped piece (5) contacts the fixed contact piece (3) when it moves in the direction of the fixed contact piece (3), wherein the two contact pieces (8) arranged on the bridge piece (5) pass through The fuse protection devices (12) are electrically connected to each other.

Description

technical field [0001] The invention relates to a switch and protective device for a high-voltage on-board electrical system, in particular a high-voltage on-board electrical system of a motor vehicle. Background technique [0002] Switches and protective devices for high-voltage on-board electrical systems are used to conduct rated currents and, if necessary, transient overload currents of high-voltage on-board electrical systems. The high-voltage on-board electrical system is disconnected preferably in all poles during each switch-off operation by means of the switching device. In contrast, the protective device serves to disconnect the high-voltage battery in the event of a fault current higher than the overload current. In this case, the protective device is usually designed as a fuse. The switching device is preferably designed as a DC voltage switch in the form of a relay. In this case, an embodiment is also possible with all poles open, in which the switching devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/08H01H71/02H01H85/38H01H85/06
CPCH01H71/02H01H71/08H01H85/06H01H85/38H01H2085/386H01H1/20H01H9/102H01H9/302H01H9/32H01H9/36H01H9/46H01H50/021H01H50/546H01H85/0241H01H21/165H01H1/14H01H3/02H01H89/00H01H2223/002
Inventor A.明克K.豪普特E-D.威尔克宁H-C.克普夫
Owner VOLKSWAGEN AG
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