Semi-hollow microwave resonant cavity and manufacturing method and mold thereof

Abstract

The invention discloses a semi-hollow microwave resonant cavity and a manufacturing method and a mold thereof. The microwave resonant cavity comprises a cavity body, wherein a plurality of grooves are formed in the outer wall of the cavity body. The cross section of the groove is circular, polygonal or in any irregular shape. And the plurality of grooves are uniformly distributed on the outer wall of the cavity in a dotted manner. The plurality of grooves arranged outside the cavity wall of the microwave resonant cavity can effectively increase the contact area of cooling liquid or reduce the distance between the cooling liquid and the inner wall, and on the premise that the mechanical strength of the cavity is not obviously reduced, heat generated by the inner wall of the cavity is more effectively transferred to the cooling liquid, so that the resonant cavity is more effectively cooled, and the service life of the microwave resonant cavity is prolonged. Therefore, the positive feedback effect caused by heat loss is reduced, and the overall operation stability of the microwave resonant cavity is improved.

Description

technical field [0001] The invention belongs to the technical field of microwaves, relates to heat loss and heat conduction management of a microwave resonant cavity, and in particular relates to a microwave resonant cavity, a manufacturing method and a mold thereof. Background technique [0002] The microwave resonator will generate heat loss during operation, and the temperature rise will lead to deformation, detuning and other consequences, and then trigger a positive feedback effect, resulting in more heat loss, and may lead to problems such as unstable operation of the resonator. Existing resonators generally have cooling liquid passing through the outer wall, such as liquid helium for superconducting cavities, liquid nitrogen for low-temperature copper cavities, etc. When the resonator is running, the Lorentz force easily leads to deformation. In order to achieve sufficient mechanical strength , the cavity wall is generally thick (such as 3mm), and hard materials with ...

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Problems solved by technology

[0002] When the microwave resonator is running, heat loss will occur, and the temperature rise will lead to deformation, detuning and other consequences, and then cause positive feedback effect, which will bring more heat loss, and may lead to problems such as unstable operation of the resonator

Existing resonant cavities generally have coolant passing through the outer wall, such as liquid helium for superconducting cavities, liquid nitrogen for low-temperature copper cavities, etc.; when the resonant cavity is running, Lorentz force and the like are likely to cause deformation, in order to achieve sufficient mechanical strength , the cavity wall is generally thick (such as 3mm), and hard materials with low RRR (thermal conductivity is much lower than high-purity materials) are often selected, so that the heat of the inner wall needs to pass through the low thermal conductivity and thicker cavity wall to reach the coolant, making the cooling effect poor

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