High-breaking-capacity fast response fuse device with phased arc suppression

A fast response, fuse technology, applied in emergency protection devices, electrical components, circuits, etc., can solve problems such as large size

Pending Publication Date: 2019-11-05
XIAN ZHONGRONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the fuse devices that rely on external force to achieve high-speed cutoff appearing on the market, due to the different arc extinguishing methods, arc extinguishing grids are generally used for arc extinguishing, and there are certain limitations in arc extinguishing ability, so they can only be used in specific environments, such as: Small inductance fault loop, or its application is limited due to its large size

Method used

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  • High-breaking-capacity fast response fuse device with phased arc suppression
  • High-breaking-capacity fast response fuse device with phased arc suppression
  • High-breaking-capacity fast response fuse device with phased arc suppression

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Embodiment Construction

[0022] Aiming at the above-mentioned technical solution, a preferred embodiment is given and described in detail with reference to the drawings. see Figure 1 to Figure 4 , The fuse device of the present invention includes an outer casing, a conductive member 3, and a power source. In this embodiment, the outer casing includes an upper cover 1 and a lower casing 2; wherein.

[0023] The upper cover 1 is set on the lower case 2, and the conductive part 3 is arranged between the upper cover and the lower case. The upper cover 1 and the conductive part 3 are fixed on the lower case by screws. The upper cover and the lower case are connected with the lower case. Sealing is arranged between the conductive parts. A power source 4 is arranged on the upper cover above the conductive member 3 .

[0024] A cavity is opened on the upper cover, and a power source 4 is arranged in the cavity. The power source includes a gas generating device 41 and a punch 5 arranged below the gas gener...

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PUM

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Abstract

A high-breaking-capacity fast response fuse device with phased arc suppression includes a shell body. A conductive part which passes through the shell body at both ends and can be connected with a main circuit is arranged in the shell body. A power source capable of cutting off the conductive part is arranged in the shell body. An accommodating chamber is arranged between the conductive part and the shell body. After being cut off by the power source, the conductive part can move into the accommodating chamber along a predetermined track. The fuse device is characterized in that at least one arc striking device is arranged at intervals on the track surface of the predetermined track, and each arc striking device is connected with the conductive part through a corresponding arc extinguishing fuse to form an arc extinguishing circuit; and when the conductive part moves into the accommodating chamber along the predetermined track after being cut off, the conductive part can contact the arc striking devices in turn to switch on the arc extinguishing circuits. Phased arc extinguishing can be realized, overvoltage can be reduced, and the equipment of the circuit can be protected from damage by overvoltage.

Description

technical field [0001] The present invention relates to a fuse, especially a fuse structure that can quickly respond and cut off the main circuit in a fuse protection device of the main circuit when the main circuit of new energy vehicles and other equipment suffers from impact or other accidents. Background technique [0002] Traditional fuses are commonly used as protective electrical components. When an overcurrent occurs in the circuit and after a certain period of time, the melt will heat up and the fuse will be blown, thereby disconnecting the circuit to achieve circuit protection. With the development and popularization of new energy vehicles, a large number of battery packs are used in new energy vehicles. As a high-density energy device, battery packs are quickly removed from the circuit when abnormal conditions such as collision, extrusion, water ingress, and short circuit occur. Isolation is the basic condition to ensure the driving safety of electric vehicles. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/38
CPCH01H85/38
Inventor 石晓光王伟段少波刘迮欣垚
Owner XIAN ZHONGRONG ELECTRIC CO LTD
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