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A bellows assembly, vacuum interrupter and vacuum circuit breaker

A vacuum interrupter and bellows assembly technology, applied in the field of bellows, can solve the problems of short service life of vacuum circuit breakers, short service life of vacuum interrupter, and easy fatigue and cracking of bellows, so as to improve the stress situation, The effect of improving service life and improving stability

Active Publication Date: 2022-07-05
PINGGAO GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a bellows assembly to solve the technical problem in the prior art that the bellows fail due to the fatigue and cracking of the corrugations at the end; the purpose of the present invention is also to provide a vacuum interrupter, To solve the technical problem in the prior art that the service life of the vacuum interrupter is short due to the failure of the bellows; the purpose of the present invention is also to provide a vacuum circuit breaker to solve the failure of the bellows in the prior art The problem of short service life of vacuum circuit breakers

Method used

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  • A bellows assembly, vacuum interrupter and vacuum circuit breaker
  • A bellows assembly, vacuum interrupter and vacuum circuit breaker
  • A bellows assembly, vacuum interrupter and vacuum circuit breaker

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specific Embodiment 1

[0083] like figure 2 and image 3 As shown, the bellows assembly includes a bellows main body 1 and two flanges 2. The two axial ends of the bellows main body 1 are respectively provided with fixing corrugations 3, and the fixing corrugations 3 are arranged in a one-to-one correspondence with the two flanges 2. The inner peripheral surface of each flange 2 is provided with an inner ring groove 23, the fixing corrugated 3 is embedded in the inner ring groove 23 of the corresponding flange 2, and the two parts of the fixing corrugated 3 are respectively welded and fixed on the corresponding flange 2. .

[0084] Specifically, as Figure 2 to Figure 5 As shown, the flange 2 includes a first flange body 21 and a second flange body 22 . The two flange bodies are axially aligned along the bellows body 1 and fixed by welding to form an inner ring groove 23 . It should be noted that, when the first flange body 21 and the second flange body 22 are butted together, the outer peripher...

specific Embodiment 2

[0094] In the above-mentioned embodiment 1, the main body of the corrugated pipe has a five-layer structure in order to meet the use requirements. The main body of the bellows in this embodiment adopts a single-layer structure according to the usage scenario. It should be noted that when the bellows body adopts a single-layer structure, the thickness of the bellows body is generally thicker. At this time, the inner and outer roots can be directly welded and fixed on the corresponding flanges by other methods such as argon arc welding. Of course, in other embodiments, the bellows body may also adopt any number of layers between one layer and five layers, or the bellows body may adopt a structure of more than five layers, provided that the use requirements are met.

specific Embodiment 3

[0096] The flange in the above-mentioned Embodiment 1 is formed by the abutment of two flange bodies to form an inner ring groove. The flange in this embodiment has a one-piece structure, and the inner ring groove is machined on the inner peripheral surface of the flange. It should be noted that, when processing the bellows assembly of this embodiment, before the bellows body is hydraulically expanded by a special mold, the flange needs to be fixed at the corresponding position of the multi-layer structure through the mold. In the process of hydraulic expansion, the flange is used as a corrugated forming die for the corresponding fixing.

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Abstract

The invention relates to the technical field of bellows, in particular to a bellows assembly, a vacuum interrupter and a vacuum circuit breaker. The bellows assembly includes: a bellows main body, the two axial ends of the bellows main body are respectively provided with corrugations for fixing; flanges are arranged on the axial ends of the bellows main body, and the inner peripheral surface of the flange is An inner ring groove is provided; the fixing corrugations are embedded in the inner ring groove, and the two parts of the fixing corrugations are fixed on the flange. The fixing corrugations are embedded in the inner ring groove of the flange, and the two parts are fixed on the flange to achieve the effect of integrating the corrugations at the end of the main body of the corrugated pipe with the flange, so that the force on the end of the main body of the corrugated pipe is The fixing corrugations, the flanges and the fixing corrugations and the flange connection are shared together. Compared with the prior art, the stress of the corrugations at the end of the main body of the corrugated pipe is effectively improved, and the corrugation at the end of the corrugated pipe can be effectively reduced. Possibility of fatigue cracks.

Description

technical field [0001] The invention relates to the technical field of bellows, in particular to a bellows assembly, a vacuum interrupter and a vacuum circuit breaker. Background technique [0002] In foreign countries, vacuum circuit breakers have become the leading products in the medium-voltage field, mainly due to the following reasons: First, with the advancement of vacuum circuit breaker technology, high-voltage, high-current, frequent-operation, under-voltage and over-voltage types have emerged. Vacuum circuit breakers of special types such as vacuum circuit breakers and economical types can meet the needs of different breaking tasks, provide users with sufficient space for choice, and are favored by users; secondly, in terms of functions, vacuum circuit breakers have developed from the original single function to Multi-function type, that is, in addition to the original breaking function, it also adds functions such as isolation and grounding, which greatly simplifie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/66H01H33/662H01H33/664
CPCH01H33/66H01H33/66238H01H33/664H01H33/66207H01H2033/66223H01H2033/6623
Inventor 郝留成韩书谟钟建英李凯苗晓军李小钊薛从军范艳艳庞亚娟王晓琴赵晓民李永林毕迎华
Owner PINGGAO GRP