Transformer primary input lead position structure of high-voltage frequency converter

Abstract

The invention discloses a transformer primary input lead position structure of a high-voltage frequency converter. The transformer primary input lead position structure comprises a cabinet body; a wire incoming hole is formed in the outer side wall of the bottom of the cabinet body; the cabinet body is connected with a first supporting column through a fixing mechanism; and the first supporting column is connected with a first clamping block through a supporting rod. According to the transformer primary input lead position structure of the high-voltage frequency converter of the invention, thefirst supporting column, a second supporting column, the supporting rod, the first clamping block, a second clamping block, a threaded rod, a first telescopic rod and a rotating block are matched with one another, so that the threaded rod can be rotated to drive the second clamping block to move toward the first clamping block, and therefore, the first clamping block and the second clamping blockcan clamp a high-voltage cable entering the wire incoming hole; a spring, a second telescopic rod, an L-shaped insertion pin, and a fixing disc are matched with one another, so that the spring pullsthe L-shaped insertion pin to be plugged into an insertion slot in the fixing disc, and therefore, the limiting function of the threaded rod is realized.

Description

technical field [0001] The invention relates to the technical field of high-voltage frequency conversion, in particular to a position structure of a primary input lead wire of a transformer used in a high-voltage frequency converter. Background technique [0002] Inverter is a power control device that uses the on-off function of power semiconductor devices to convert power frequency power to another frequency. With the rapid development of modern power electronics and microelectronics technology, high-voltage and high-power frequency conversion speed control devices continue to mature. , the high-voltage problem that has been difficult to solve has been well solved by connecting devices in series or unit series. There are many types of high-voltage frequency converters, and their classification methods are also diverse. [0003] Now, in order to connect the input terminal of the high-voltage frequency converter with the three output terminals on the transformer, the connect...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem in the prior art that the shaking of the high-voltage cable will cause the end of the high-voltage cable connected to the high-voltage frequency converter in the electric cabinet to drop, and propose a position structure of the primary input lead wire of the transformer for high-voltage frequency converter

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