Magnetron for microwave oven
AssigneeGoldstar Co., Ltd.
InventorGi I. Do
Life of this patent
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Abstract
A magnetron for a microwave oven comprising a spacer having a disc shape fitted between a lower pole piece and a F-seal supporting the lower pole piece. The spacer has a pair of lead holes through which a center lead and a side lead extend, respectively. At the upper surface of the space, a metal coating is formed which defines an attenuation cavity. The provision of the attenuation cavity makes it possible to remove effectively leaked microwaves. Since the spacer is firmly fitted between the lower pole piece and the F-seal, it is also possible to avoid a lateral vibration of the lead assembly.
Claims6
A magnetron for a microwave oven comprising:
- a shield body;
- a center lead and a side lead both extending throughout said shield body;
- upper and lower pole pieces coupled to upper and lower portions of the shield body, respectively, and defining an interaction space therebetween;
- an F-seal for supporting said lower pole piece;
- a spacer fitted in a mounting area defined between said F-seal and the lower pole piece and provided with a pair of lead holes through which said center lead and said side lead extend, respectively;
- and
- a metal coating provided at the upper surface of said spacer and adapted to define an attenuation cavity, together with the lower pole piece.
Dependencies are inferred from the claim text.