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A dust-proof and waterproof solid-sealed pole that is easy to dissipate heat and be easily demolded and its manufacturing process

A dustproof, waterproof, and solid-sealed pole technology, which is applied in high-voltage/high-current switches, high-voltage air circuit breakers, electrical components, etc., can solve the problems of large working current and high calorific value, and achieve easy production, easy manufacturing, and enhanced The effect of the flue effect

Active Publication Date: 2020-02-18
中国振华电子集团宇光电工有限公司(国营第七七一厂)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for products with a current of more than 3000A, due to the large operating current and high heat generation, heat dissipation must be considered at the upper and lower outlets, that is, heat dissipation air ducts must be added; due to the high voltage of 40.5kV products, the creepage distance is required to be above 810mm, such products The cooling air duct must take corresponding measures to solve the insulation problem

Method used

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  • A dust-proof and waterproof solid-sealed pole that is easy to dissipate heat and be easily demolded and its manufacturing process
  • A dust-proof and waterproof solid-sealed pole that is easy to dissipate heat and be easily demolded and its manufacturing process
  • A dust-proof and waterproof solid-sealed pole that is easy to dissipate heat and be easily demolded and its manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: A dust-proof and waterproof solid-sealed pole that is easy to dissipate heat and demould, as shown in the attached Figure 1-4 As shown, it includes a vacuum interrupter 14, an insulating shell 7 is arranged outside the vacuum interrupter 14, an umbrella skirt 11 is provided at the bottom of the vacuum interrupter 14, and a heat dissipation cover 1 is provided at the top (the heat dissipation cover 1 is barrel-shaped, Surrounding the heat dissipation cover on the top of the vacuum interrupter 14); the first air duct 9 is distributed in the insulation housing 7 (the first air duct 9 is distributed along the circumferential direction of the insulation housing 7, and is set according to the heat dissipation requirements The number of the first air channel 9), the inner wall of the first air channel 9 is provided with a first spiral rib 10, the upper end of the first air channel 9 is connected with the inside of the heat dissipation cover 1, and the bottom of the ...

Embodiment 2

[0032] Embodiment 2: The manufacturing process of the above-mentioned dustproof and waterproof solid-sealed pole that is easy to dissipate heat and be easily demolded is to fix the vacuum interrupter 14 in the mold, and fix the core on one side of the vacuum interrupter 14 , inject material (such as epoxy resin) into shape by conventional process, release the mold after cooling, unscrew the core to form the first air channel 9, communicate with the second air channel 13 opened at the bottom of the insulating shell 7, guide Connect the first air channel 9 and the hollow cavity 12 of the shed 11, and finally connect the heat dissipation cover 1 to the top of the insulating case 7 to obtain the solid-sealed pole.

[0033] The heat dissipation cover 1 is connected with the insulating housing 7 via the tenon 5 and the falcon groove 8 .

[0034] During operation, cold air enters from the hollow cavity 12 of the shed 11, takes away the heat from the bottom outgoing line and the surro...

Embodiment 3

[0035] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the upper end of the insulating housing 7 forms a cylindrical shape along the top beyond the vacuum interrupter 14, and the bottom of the heat dissipation cover 1 is provided with a connection with the insulating housing 7. The upper end is matched with the card slot 16, and the heat dissipation cover 1 is provided with a heat dissipation air duct 15 penetrating up and down. This structure is a semi-open structure, and the heat dissipation efficiency is higher and the effect is better. The dust effect is poor.

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PUM

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Abstract

The invention discloses a dustproof and waterproof type solid sealing pole with easy radiating and easy demoulding and manufacturing process. The dustproof and waterproof type solid sealing pole comprises a vacuum arc-extinguishing chamber (14). The vacuum arc-extinguishing chamber (14) is provided with an insulating shell (7). An umbrella skirt (11) is arranged in the lower insulating shell of the vacuum arc-extinguishing chamber (14) and a heat radiation shield (1) is arranged on the top. The insulating housing (7) is provided with a longitudinal first air passage (9). The inner wall of the first air passage (9) is provided with a first spiral convex rib (10). The upper end of the first air passage (9) is communicated with the interior of the radiating cover (1). The bottom of the insulating shell (7) is provided with a middle air cavity (12) connecting the umbrella skirt (11) and a second air channel (13) of the first air duct (9). The heat radiation shield (1) is provided with an inside conducting heat radiation shield and a outside air passage. The dustproof and waterproof type solid sealing pole with easy radiating and easy demoulding and manufacturing process have the advantages of good heat radiation effect, good insulation performance, easy demoulding, dustproof and waterproof.

Description

technical field [0001] The invention relates to a solid-sealed pole and a manufacturing process thereof, in particular to a dust-proof and waterproof solid-sealed pole that is easy to dissipate heat and be easily demoulded and a manufacturing process thereof. Background technique [0002] The solid-sealed pole is to embed the conductive parts related to the vacuum interrupter (Vacuum interruptor) and the circuit breaker (Circuit-breaker) into an easily curable solid insulating material such as epoxy resin or thermoplastic material to form a pole, so that the whole The breaker poles become an integral part. [0003] Under normal circumstances, for 40.5kV solid-sealed poles, the center distance between the upper and lower outgoing lines is only 328mm, and the maximum is about 400mm. However, for products with a current of more than 3000A, due to the large operating current and high heat generation, heat dissipation must be considered at the upper and lower outlets, that is, h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/662H01H9/52H01H11/00
CPCH01H9/52H01H11/00H01H33/66207H01H2009/526
Inventor 康一
Owner 中国振华电子集团宇光电工有限公司(国营第七七一厂)
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