Case for magnetron

Abstract

The invention discloses a pipe shell of a magnetron, which comprises a substrate; the outside of the substrate is plated with an outer nickel layer; and the innermost side of the substrate is plated with an inner copper layer. The inner wall surface and the outer wall surface of the pipe shell of the magnetron are plated with a metal copper layer and a metal nickel layer respectively, on one hand, the outside nickel-plated layer can effectively prevent the substrate from oxidizing; and on the other hand, the inside copper-plated layer can effectively reduce high-frequency loss caused by skin effect, so as to realize the aims of improving output power of the magnetron and the working efficiency of a microwave oven.

Description

technical field [0001] The invention belongs to the technical field of magnetrons, and in particular relates to a shell of a magnetron tube core. Background technique [0002] In the design of the magnetron, the output of microwave energy is very important. The size design of the transmission line in the energy output device is very important. On the premise of reasonable size design, the high-frequency loss of the material must also be considered. In the previous technical requirements , People set a nickel layer of 5 μm to 8 μm on the inner and outer walls of the magnetron tube core to prevent oxidation. [0003] As we all know, high-frequency alternating current has a skin effect, and the skin effect indirectly increases the resistance of the conductor, and its energy and heat loss also increases. In the microwave and other high-frequency bands, the magnetron is used as a high-frequency vibration source, and the skin effect of the core shell is very obvious. The energy a...

AI Technical Summary

Problems solved by technology

In the microwave and other high-frequency bands, the magnetron is used as a high-frequency vibration source, and the skin effect of the core shell is very obvious. The energy and heat loss caused by the skin effect is very large, which directly reduces the output power of the magnetron. The greater the heat loss of the magnetron, the higher the temperature rise and the longer the heat dissipation time, which indirectly reduces the heat dissipation performance of the magnetron

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