An air-cooled oil-immersed industrial microwave frequency conversion power supply

Abstract

The invention relates to an air-cooled oil-immersed industrial microwave variable frequency power supply, which includes a casing and a microwave variable frequency power supply board arranged in the inner cavity of the casing. Heat dissipation structure; the shell is a fully enclosed aluminum structure, forming a dust-proof structure; the shell is equipped with transformer insulating oil, and the heating components in the microwave variable frequency power board are soaked in the transformer insulating oil to form an oil-immersed heat dissipation structure; The air-cooled heat dissipation structure includes a natural internal cooling structure and a forced air cooling structure. The natural air cooling structure is composed of a natural heat dissipation channel formed by connecting the heat sink connected to the power element of the frequency conversion circuit board to the side wall of the housing to dissipate heat outward. The forced air cooling structure is composed of a forced heat dissipation channel formed by a heat dissipation fan arranged next to the heat sink; a pressure relief valve is provided on the upper side of the shell to form a heat dissipation and explosion-proof structure. It has the characteristics and progress of good heat dissipation effect, prevention of electrical short circuit failure, large heat dissipation per unit time, and fast heat dissipation.

Description

technical field [0001] The invention relates to an air-cooled oil-immersed industrial microwave frequency conversion power supply. The utility model belongs to the technical field of industrial microwave frequency conversion power supply. Background technique [0002] The magnetron drive power supply of traditional industrial microwave equipment often uses power frequency high-voltage transformers, which consume high energy, are bulky, heavy, and the power cannot be adjusted; this limits the versatility of microwave ovens. In recent years, microwave variable frequency power supplies are gradually replacing traditional power frequency transformers due to their advantages of energy saving, good reliability, wide voltage adaptability, and continuous power adjustment. [0003] Because the high-frequency transformer and semiconductor power devices in the microwave variable frequency power supply will generate a lot of heat during operation, the heat dissipation structure design ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an air-cooled microwave power supply to solve the problems of the existing microwave variable frequency power supply, such as easy accumulation of dust on the variable frequency power supply board, poor heat dissipation effect and even electrical short circuit failure, small heat dissipation per unit time, slow heat dissipation and poor effect. Oil-immersed industrial microwave frequency conversion power supply has outstanding substantive features and significant progress such as preventing dust from accumulating on the frequency conversion board, good heat dissipation effect, preventing electrical short circuit failure, large heat dissipation per unit time, fast heat dissipation and good effect.

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