Magnetron with anti-current structure

A magnetron, a new type of technology, applied in the field of magnetron, can solve the problems of reducing the electromagnetic interference characteristics of the magnetron, unfavorable high-order harmonic absorption, etc., and achieve the effect of improving electromagnetic interference characteristics and suppressing high-order harmonics

Inactive Publication Date: 2007-11-14
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Abstract
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Problems solved by technology

[0005] Using the magnetron of the prior art, its anti-current structure 4 is a hollow cylinder shape, because the inner wall of this structure for anti-current has only one height, correspondingly only one short-circuit surface can be formed, which will be unfavorable for high-order Harmonic absorption, resulting in high-order harmonics can not be well suppressed, reducing the electromagnetic interference characteristics of the magnetron

Method used

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  • Magnetron with anti-current structure
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Embodiment Construction

[0027] Referring to Fig. 3 and Fig. 4, the filament 8 of the cathode part is located in the upper and lower filament covers 12 and 13, and the central wire 14 and the side wire 15 are installed under the lower filament cover 13; the anode cylinder 6 is set outside the cathode part and located in the anode cylinder In the space between 6 and the cathode part, blades 7 are installed, the belt ring 16 is installed on the blades 7, the cover 3 of the output part is welded on the top of the anode cylinder 6, and the anti-flow structure 4 is welded inside the cover 3, The upper part of the cover 3 and the A-ceramic 9 are welded together by silver solder (not shown), the exhaust pipe 1 and the A-ceramic 9 are also connected by welding, and the antenna 5 is located in the exhaust pipe 1 And integrated with it, the top of the exhaust pipe 1 is covered by the antenna cap 10 to play a protective role.

[0028] Set up 4 anti-flow grooves 11 equidistantly along the circumferential wall of ...

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Abstract

The invention is a magnetron with novel anti-current structure, comprising cathode part, anode part and output part, where the cathode part and anode part are used to generate magnetic energy which is outputted by antenna in microwave form, and two exhaust tube spaces of exhaust tube at the output part, caps and anti-current structure are used to prohibit high-order harmonics simultaneously generated and harmful to wireless communication. Because of making several anti-current grooves along the circular wall on a hollow cylindrical anti-current structure, the invention increases number of heights for prohibiting high-order harmonics and new short-circuited surfaces generated by this, so as to effectively improve electromagnetic interference property of the magnetron.

Description

1. Technical field [0001] The invention relates to a magnetron for generating microwave energy, in particular to a magnetron for generating microwave energy with a novel anti-current structure. 2. Background technology [0002] A magnetron is an electromagnetic device used to generate microwave energy. When the magnetron generates microwaves, it always generates some high-order harmonics. When these high-order harmonics are radiated in the form of electromagnetic waves, they will inevitably cause interference to satellite reception, Bluetooth communication, and wireless communication. In order to eliminate these adverse effects of high-order harmonics to the greatest extent, the manufacturers of magnetrons have anti-current structures on the output part of the magnetron to suppress the high-order harmonics generated by the magnetron, thereby Make the amplitude of higher harmonics weaken below the specified standard. [0003] Its specific structure is as follows. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J23/54H01J25/50
Inventor 张国君
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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