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A heat dissipation block for a fuse type isolating switch

A technology of isolating switch and heat sink, applied in electrical switches, air switch parts, electrical components, etc., can solve problems such as temperature rise, achieve the effect of improving heat dissipation performance and solving excessive temperature rise

Active Publication Date: 2019-11-26
上海电器陶瓷厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the defects of the prior art and provide a heat dissipation block for a fuse-type isolating switch, which can improve the heat dissipation performance of the isolating switch, and can reduce the overall temperature rise of the isolating switch by several K or even more than ten K , to solve the problem of excessive temperature rise

Method used

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  • A heat dissipation block for a fuse type isolating switch
  • A heat dissipation block for a fuse type isolating switch
  • A heat dissipation block for a fuse type isolating switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] see Figures 1 to 1d , a heat sink for a fuse-type isolating switch, comprising a heat sink body 21, the upper end surface of the heat sink body 21 is provided with a bolt mounting hole 22; the lower end surface of the heat sink body 21 is provided with several transverse grooves and several Longitudinal grooves, each transverse groove is opened along the length direction of the heat sink body 21, and each longitudinal groove is opened along the width direction of the heat sink body; The groove and several longitudinal grooves divide the lower part of the heat sink body 21 into several heat sink bars 23 arranged in a square array, and a heat sink base 24 is formed between the top surfaces of the several heat sink bars 23 and the top surface of the heat block body 21 . The bottom end surfaces of each cooling strip 23 are flush with each other, and the vertical section of the cooling strip base 24 is an inverted convex shape. The bolt mounting holes 22 are located on the ...

Embodiment 2

[0037] see Figure 2 to Figure 2d , a heat dissipation block for a fuse-type isolating switch, comprising a heat dissipation block body 21', a bolt mounting hole 22' is provided on the upper end surface of the heat dissipation block body 21'; a number of transverse Groove and several longitudinal grooves, each transverse groove is all opened along the length direction of heat dissipation block body 21 ', and each longitudinal groove is all opened along the width direction of heat dissipation block body; Several transverse grooves and several longitudinal grooves intersect The lower part of the heat dissipation block body 21' is divided into several heat dissipation strips 23' arranged in a square array by a number of transverse grooves and a number of longitudinal grooves. Form a cooling strip base 24' between them. The bottom end surfaces of the cooling strips 23' in the leftmost row and the bottom end surfaces of the cooling strips 23' in the rightmost row are flush with ea...

Embodiment 3

[0039] see Figure 3a , a heat dissipation block for a fuse-type isolating switch. On the basis of Embodiment 2, a strip-shaped protrusion 25' is longitudinally provided on the left and right sides of the top surface of the heat dissipation block body 21'.

[0040] see Figure 3b Alternatively, on the basis of Embodiment 1, a strip-shaped protrusion 25 is longitudinally provided on the left and right sides of the top surface of the heat dissipation block body 21, respectively.

[0041] In this way, during installation, the terminal bolt 16 can be clamped in the two elongated protrusions, and the two elongated protrusions play a position-limiting role.

[0042] see Figure 4 , a fuse-type isolating switch, including a heat dissipation housing, and the heat dissipation housing is divided into three independent compartments 100 arranged horizontally by two longitudinal partitions, and a heat dissipation block 2 of the present invention is provided at the front end of each indep...

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PUM

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Abstract

The invention discloses a heat dissipation block for a fuse type isolating switch. The heat dissipation block comprises a heat dissipation block body. A bolt mounting hole is arranged on the upper end face of the heat dissipation block body. A plurality of transverse grooves and a plurality of longitudinal grooves are arranged on the lower end face of the heat dissipation block body. Each transverse groove is arranged along the length direction of the heat dissipation block body. Each longitudinal groove is arranged along the width direction of the heat dissipation block body. The plurality of transverse grooves and the plurality of longitudinal grooves are arranged crossly. The lower part of the heat dissipation block body is segmented into a plurality of heat dissipation strips by the plurality of transverse grooves and the plurality of longitudinal grooves. The heat dissipation strips are arranged in a square matrix. A heat dissipation strip base is formed between the top end faces of the plurality of heat dissipation strips and the top end face of the heat dissipation block body. According to the heat dissipation block for the fuse type isolating switch, the heat dissipation performance of the isolating switch can be improved, the integrated temperature rise of the isolating switch can be reduced by Ks or even more than ten Ks, and the problem of overhigh temperature rise is solved.

Description

technical field [0001] The invention relates to a heat dissipation block for a fuse type isolating switch. Background technique [0002] The fuse-type isolating switch can break off a large current, and more importantly, it can protect the isolating switch in the face of a large current. The fuse in the fuse-type isolating switch is equivalent to a fuse. Fuse type isolating switch is a kind of current protector made according to the principle that after the current exceeds the specified value for a certain period of time, the melt of the fuse is melted by the heat generated by itself, thereby disconnecting the circuit. [0003] The fuse type isolating switch needs to meet the following three points: [0004] 1. Protect the switch by using a fuse; [0005] 2. An isolating switch that can connect, carry and break current under normal circuit conditions (including specified overload), and can carry current under specified abnormal circuit conditions (such as short circuit) an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H31/12H01H9/52
CPCH01H9/52H01H31/12H01H2009/526
Inventor 吕力陆培琪郁玲龚生培周羽
Owner 上海电器陶瓷厂有限公司