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Fuse Assembly

A fuse and component technology, applied in electrical components, emergency protection devices, circuits, etc., can solve problems such as insufficient bonding depth, insufficient contact area between the end of the fuse and the contact finger assembly, and large size of the fuse end cap.

Active Publication Date: 2020-05-29
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of the fuse end cap is relatively large due to the need for threaded holes in the fuse end cap
In addition, the head of the screw will occupy the internal space of the contact finger assembly, resulting in insufficient contact area between the end of the fuse and the contact finger assembly, resulting in insufficient joint depth and poor contact, that is, the contact finger assembly cannot be stably hold fuse
In addition, since the fuse contact finger is made of a single thickness of metal material, the temperature of the contact portion between the end of the fuse and the contact finger assembly rises too fast
[0003] The combination of the contact finger assembly and the fuse end cover needs to be accommodated in an air box filled with insulating gas. Due to the relatively large size of the fuse end cover, it is difficult to further reduce the size of the air box

Method used

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Examples

Experimental program
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Embodiment Construction

[0043] Embodiments of the present disclosure will be described in detail below in conjunction with the above-mentioned figures.

[0044] figure 1 There is shown an exploded view of a fuse assembly according to the present disclosure showing a finger assembly 1 , a fuse end cap 2 and a fuse well 3 in which the contact finger assembly 1 is mounted 2, the fuse well 3 is connected to the fuse end cap 2, the finger assembly 1 is used to hold the fuse end 4-1 of the fuse 4, and the fuse body 4-2 of the fuse 4 is accommodated in the fuse well 3. Specifically, the contact finger assembly 1 is provided with a contact finger external thread, and the inner space of the fuse end cap 2 is provided with an end cap internal thread 2-1 (see image 3 ), the contact finger assembly 1 is installed in the internal space of the fuse end cap 2 through the threaded fit between the external thread of the contact finger and the internal thread of the end cap.

[0045] figure 2 An assembly drawing...

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PUM

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Abstract

A fuse assembly, wherein the fuse assembly includes a fuse well, a fuse, a contact finger assembly and a fuse end cover, one end of the fuse well is connected to the fuse end cover, and in the fuse The fuse is accommodated in the wire well, and the contact finger assembly is used to hold the fuse end of the fuse. The contact finger assembly is provided with a contact finger external thread, and is located inside the fuse end cap. An internal thread of the end cap is provided in the space. Through the threaded cooperation between the external thread of the contact finger and the internal thread of the end cap, the contact finger assembly is installed in the internal space of the fuse end cap.

Description

technical field [0001] The present disclosure relates to a fuse assembly, in particular to a fuse assembly in which a contact finger assembly and a fuse end cover are connected together by screw fit. The fuse assembly according to the present disclosure further includes an annular protective sleeve. Background technique [0002] In the prior art, screw fasteners are required to install the contact finger assembly in the fuse end cap. The method adopted is to set a threaded hole in the fuse end cover, and a screw with a certain length is screwed into the threaded hole through the through hole provided at the bottom of the contact finger assembly, so that the contact finger assembly is installed in the fuse end cover . Since threaded holes need to be provided in the fuse end cap, the size of the fuse end cap is relatively large. In addition, the head of the screw will occupy the internal space of the contact finger assembly, resulting in insufficient contact area between th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H85/15
CPCH01H85/15
Inventor 孙亮C.阿诺
Owner SCHNEIDER ELECTRIC IND SAS