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Heat radiation mechanism of soft starter for large current

A technology of soft starter and heat dissipation mechanism, applied in circuits, electrical components, electric solid devices, etc., can solve the difficulty of close contact between the busbar and the heat sink in a large area, the heat dissipation effect of the thyristor is not ideal, and the thyristor is easy to appear. Heat and other problems, to save money, improve the heat dissipation effect, and increase the contact area.

Inactive Publication Date: 2007-12-26
上海亿盟电气自动化技术有限公司
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Problems solved by technology

[0002] The heat dissipation mechanism of the current soft starter is to install the thyristor on the energized busbar during assembly, and the busbar is fixed on the heat sink. The contact area between the upper and lower sides of the thyristor and the busbar is small, and due to the deformation of the material surface It is difficult to realize the large-area close contact between the busbar and the heat sink. When there is a large current, the heat dissipation effect of the thyristor is not ideal, and the thyristor is prone to heating, which affects the overall performance.

Method used

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  • Heat radiation mechanism of soft starter for large current

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing.

[0014] As shown in Figure 2, the high-current heat dissipation mechanism of the soft starter includes several thyristors 3, upper busbars 1, lower busbars 13, heat dissipation components, and connecting and fastening components. The row 1, the lower busbar 13, and the heat dissipation parts are connected and fastened by connecting and fastening parts. The heat dissipation parts include the upper heat sink 2 and the lower heat sink 12. The connection and fastening parts include bolts 17, washers 8, Washer 2 14, Washer 3 16, Disc washer 15, Nut 9, Screw 10, Upper platen 4, Lower platen 11, Backing plate 7, Bearing ball 6, Insulating bushing 5, said several SCRs 3 are directly tightened It is pasted between the upper heat sink 2 and the lower heat sink 12 .

[0015] There are two thyristors 3; the upper busbar 1 and the lower busbar 13 are respectively fixed in two sections o...

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Abstract

The invention comprises; several thyristors, upper bus line, lower bus line, cooling component, connection fastening component. The thyristor, upper bus line, lower bus line and cooling component are connected together via said connection fastening component. Said cooling component comprises an upper heat-sink, a lower heat sink.

Description

technical field [0001] The invention relates to a soft starter, in particular to a large-current cooling mechanism of the soft starter. Background technique [0002] The heat dissipation mechanism of the current soft starter is to install the thyristor on the energized busbar during assembly, and the busbar is fixed on the heat sink. The contact area between the upper and lower sides of the thyristor and the busbar is small, and due to the deformation of the material surface It is difficult to realize the large-area close contact between the busbar and the heat sink. When a large current occurs, the heat dissipation effect of the thyristor is not ideal, and the thyristor is prone to heating, which affects the overall performance. Contents of the invention [0003] The purpose of the present invention is to provide a soft starter large current cooling mechanism in order to overcome the above-mentioned defects in the prior art. [0004] The object of the present invention c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20H01L23/36H01L23/367
Inventor 徐林林冯俊尚云辉
Owner 上海亿盟电气自动化技术有限公司
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