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Porcelain insulator for power capacitor

A technology of ceramic insulators and power capacitors, which is applied in the direction of insulators, lead-in/through-type insulators, circuits, etc., can solve the problems of cumbersome processing and installation operations, affecting sealing performance, etc., to achieve reasonable and compact structure, ensure sealing performance, prevent The effect of slipping

Active Publication Date: 2012-08-15
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During the follow-up R&D and trial production process, the applicant found that two semi-circular metal retaining rings are welded and fixed to the metal mounting seat, so as to ensure that the metal mounting seat is firmly fixed on the ceramic outer wall. This structure is feasible and can meet the requirements of the national Relevant standards, but the operation process of its processing and installation is relatively cumbersome, and it is necessary to use a special special fixture to clamp the metal retaining ring and the metal mounting seat, so that it can be welded smoothly
[0006] In addition, when the metal mounting seat used in this kind of ceramic insulator device is subjected to a large force, it is easy to slip along the circumferential direction of the insulator, which affects the sealing performance

Method used

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  • Porcelain insulator for power capacitor
  • Porcelain insulator for power capacitor
  • Porcelain insulator for power capacitor

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Embodiment 1）

[0020] figure 1 It is a schematic diagram of a three-dimensional structure of the present invention, showing a specific embodiment of the present invention.

[0021] This embodiment is a ceramic insulator for power capacitors, see figure 1 As shown, the insulator 1 is provided with a through hole 11 along its central axis, a plurality of sheds 12 are provided on the outer wall of the middle part, and an annular positioning boss 13 protruding radially is provided on the outer wall of the lower part. The outer wall is provided with a radially protruding annular rolling fastening part 15, a groove 16 is provided at the center of the top end wall of the upper part of the insulator 1, and the through hole 11 of the ceramic insulator 1 is located at the center of the groove 16. place.

[0022] In this embodiment, the outer wall of the lower part of the insulator 1 is further provided with a plurality of positioning grooves 17 extending along the axial direction, and each positioni...

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Abstract

The invention discloses a porcelain insulator for a power capacitor. A through hole is formed along the central axis of the porcelain insulator, a plurality of umbrella skirts are arranged on the outer wall in the middle of the porcelain insulator, an annular positioning boss protruding along the radial direction is arranged on the outer wall of the lower part of the porcelain insulator, and a plurality of positioning slots extending along the axis direction are formed on the outer wall of the lower part of the porcelain insulator and are positioned below the annular positioning boss. The porcelain insulator disclosed by the invention is reasonable and compact in structure and can effectively prevent an external metal base from slipping along the circumference of the insulator so as to ensure the sealing performance of the insulator.

Description

technical field [0001] The invention relates to the technical field of ceramic terminal structure design, in particular to a ceramic insulator used for power capacitors. Background technique [0002] The ceramic insulators of high-voltage capacitors currently on the market use silver to weld the mounting part and ceramics together to make them firmly fixed on the ceramics. The cost of this product is high, the steps are cumbersome, and the processing time is long. [0003] Traditional ceramic insulators need to weld metal wiring components and installation components with ceramic insulators. Due to the particularity of ceramics, special solder with silver alloy as the main component needs to be used. This solder is very expensive. At the same time, in order to ensure The firmness of the combination of the two also requires a relatively thick solder layer, and more materials are used, which leads to the high cost of this kind of insulator; in addition, in order to prepare thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/26H01B17/30H01B17/38
Inventor 胡小青申俊
Owner STATE GRID CORP OF CHINA
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