Magnetron Die, Magnetron and Microwave Oven

Abstract

The invention provides a magnetron, a tube core thereof and a microwave oven. The tube core of the magnetron comprises a positive electrode part, an upper magnetic pole, a lower magnetic pole, an input end shell and an output end shell; the upper and lower magnetic poles are respectively fixedly arranged at the upper and lower ends of the positive electrode part and are provided with grooves sunk towards the interior of the positive electrode part; the input end shell is fixedly arranged at the lower end of the positive electrode part; the output end shell comprises an upper tube shell and an upper plate; the upper plate is connected to the upper end of the positive electrode part; and an upper reinforcing part is arranged at the joint of the upper tube shell and the upper plate and is supported on the groove wall of the upper groove. According to the tube core of the magnetron provided by the invention, the upper reinforcing part which is supported on the groove wall of the groove is arranged at the joint of the upper tube shell and the upper plate, and the upper reinforcing part is capable of withstanding deformation caused by an external pressure and avoiding the situation that the shape and size of the magnetron are deviated from design values to result in reduction of the magnetic flux and further affect the use effect of the magnetron, so that the use reliability of the magnetron is ensured, and the market competiveness of products is accordingly increased.

Description

Technical field [0001] The invention relates to the technical field of magnetron structures, in particular to a magnetron tube core, a magnetron having the magnetron tube core, and a microwave oven having the magnetron. Background technique [0002] Magnetron is a vacuum tube that generates microwaves. Because of its high oscillation efficiency and high microwave output power, magnetrons are used as microwave sources and are widely used in household microwave ovens, industrial microwave heating devices and other microwave application equipment . [0003] In the core of the existing magnetron, the antenna output end pipe case and the lead input end pipe case are fixed on the anode barrel by welding, and the antenna output end pipe case or the lead input end pipe case and the anode barrel are connected with magnetic poles. As a support, the antenna output end shell and the lead input end shell have cylindrical parts. If the inner diameter of the cylindrical part is smaller than the ...

AI Technical Summary

Problems solved by technology

When the cylindrical part sinks, both the shell of the antenna output end and the shell of the lead input end will deform, causing the actual shape of the magnetron to deviate from the design value, and the basic characteristics of the magnetron will deteriorate, and even radiation leakage will occur. danger

In addition, if the inner diameter of the cylindrical part is gradually changed by setting the cylindrical part as a tapered part in the case, or if a bump is provided at the connection between the bottom of the cylindrical part and the plane of the case, the case will interfere with the magnet, and it is necessary to Increasing the inner diameter of the magnet or increasing the inner chamfer of the magnet will not only increase the manufacturing cost, but also reduce the magnetic flux in the center of the magnet and cause the performance of the magnetron to deteriorate

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