High-voltage separation transformer

Abstract

The invention relates to a high-voltage separation transformer, which comprises a magnetron, a transformer body and a primary coil and secondary coil thereof, wherein the primary coil and the secondary coil are in coupling connection, the secondary coil includes a secondary B1 coil and at least two secondary B2 coils arranged in a series connection manner; two ends of the secondary B1 coil are electrically connected with the magnetron; and the secondary B2 coils are electrically connected with the magnetron through a high-voltage rectifier bridge circuit, and a fuse tube is connected in seriesin the circuit between the secondary B2 coils. The high-voltage separation transformer is reasonable in design, the voltage is graded through adopting two or more secondary B2 coils, the voltage between the turns of the coils is lowered, the voltage between the layers of the coils remains unchanged, and the withstand voltage safety of the high-voltage transformer is ensured. Meanwhile, the service life of the transformer is prolonged, and the high-voltage capacitor and high-voltage diode voltage doubling circuit part is reduced, thereby enabling the circuit to be more concise, and enabling the system to be more stable.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a high-voltage separation transformer. Background technique [0002] The function of the microwave high-voltage transformer in the prior art is to transform the mains power into a high voltage between 2000 volts and 2400 volts, and then increase the voltage to 4000 volts through high-voltage capacitors and high-voltage diodes, and then supply it to the magnetron. Meet the working voltage of the magnetron. [0003] The problems and shortcomings of the microwave high-voltage transformer are: because the withstand voltage between each turn of the high-voltage coil of the microwave high-voltage transformer is certain, the designed voltage of the microwave high-voltage transformer is too high, and the voltage between each turn will also be high, which will cause the coil Intermittent breakdown, burning the microwave high-voltage transformer, so that the voltage of the microwave ...

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Problems solved by technology

[0003] The problems and shortcomings of the microwave high-voltage transformer are: because the withstand voltage between each turn of the high-voltage coil of the microwave high-voltage transformer is certain, the designed voltage of the microwave high-voltage transformer is too high, and the voltage between each turn will also be high, which will cause the coil Intermittent breakdown, burning the microwave high-voltage transformer, so that the voltage of the microwave high-voltage transformer can only reach around 2000V. If the voltage is further increased, the withstand voltage and life of the microwave high-voltage transformer will be greatly reduced. Realize high-voltage double voltage, thereby increasing the number of components of microwave high-voltage transformers, and reducing the overall safety of microwave equipment

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