Abutting machining process and equipment for improving excitation-characteristic matching ratio of combined-type mutual inductor

A combined transformer and excitation characteristic technology, applied in the field of transformers, can solve problems such as failure to leave the factory, high scrap rate, mismatching excitation characteristics, etc., and achieve the effect of improving yield rate, improving excitation characteristic matching rate, and improving positioning relationship

Active Publication Date: 2014-12-17
SHANGHAI DAYIHU POWER ELECTRICAL APPLIANCE
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Problems solved by technology

[0004] However, this one-time overall casting process has a high scrap rate when the electrical performance is tested after molding. Many combined transformers are often unable to leave the factory due to the mismatch of excitation characteristics between them.

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  • Abutting machining process and equipment for improving excitation-characteristic matching ratio of combined-type mutual inductor
  • Abutting machining process and equipment for improving excitation-characteristic matching ratio of combined-type mutual inductor
  • Abutting machining process and equipment for improving excitation-characteristic matching ratio of combined-type mutual inductor

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Embodiment Construction

[0047] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0048] refer to figure 1 , figure 2 , image 3 , the butt joint processing technology to improve the matching rate of the excitation characteristics of the combined transformer includes the following three steps:

[0049] 1) Separate pouring: pour the single transformer alone, measure the electrical parameters of the completed transformer single, and group the transformer singles with at least two matching electrical parameters;

[0050] 2) Fixed positioning: fix at least two matched transformers with a fixed bracket 5;

[0051] 3) Partial bonding: at least two single transformers are bonded on the fixing bracket 5 with an adhesive to form a combined transformer.

[0052] The invention adopts the method of individual pouring first and then overa...

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Abstract

The invention relates to a mutual inductor, in particular to an abutting machining process for improving the excitation-characteristic matching ratio of a combined-type mutual inductor. The abutting machining process comprises the following three steps of 1) individual casting: individually casting mutual inductor monomers, carrying out electrical parameter measurement on the cast mutual inductor monomers, and dividing at least two mutual inductor monomers with matched electrical parameters into a group; 2) fixation positioning: fixing the at least two matched mutual inductor monomers by a fixed bracket; 3) local bonding: bonding the at least two mutual inductor monomers on the fixed bracket by a bonding agent to manufacture the combined-type mutual inductor. A method of first individual casting and then integral bonding is adopted by the invention to replace traditional integral casting, so that the excitation-characteristic matching ratio of the combined-type mutual inductor is improved, and the yield is improved.

Description

technical field [0001] The invention relates to a transformer, in particular to a processing technology for a transformer. Background technique [0002] An instrument transformer is a device that converts voltage or current proportionally. Its function is mainly to convert high voltage or high current into standard low voltage (100V) or standard small current (5A or 10A, both refer to rated value) in proportion, so as to realize the standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment. change. At the same time, the single transformer can also be used to separate the high-voltage system to ensure the safety of people and equipment, and to convert voltage or current equipment in proportion. [0003] In the prior art, the processing technology of the combined transformer adopts one-time integral casting molding. The existing manufacturing technology is to mix epoxy resin and quartz sand together, heat, stir, vacuu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/00H01F38/34
Inventor 胡光远陈冲马传超郭将军候罡陆少同
Owner SHANGHAI DAYIHU POWER ELECTRICAL APPLIANCE
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