阅读说明：本技术 封闭门、微波炉、烤箱和烘干机 (Enclosed door, microwave oven, oven and dryer ) 是由 张力潇 俞国新 劳春峰 贾晓芸 于 2018-07-24 设计创作，主要内容包括：本发明公开了一种封闭门,所述封闭门用于微波及射频加热装置,包括：门框边框和扼流结构；还包括：设置于所述门框边框和所述扼流结构之间的电介质；所述扼流结构包括：呈L形配合的第一扼流板和第二扼流板；所述第一扼流板沿所述门框边框的边缘垂直于所述门框边框向微波及射频加热装置容纳腔延伸；所述第二扼流板沿所述第一扼流板的自由端垂直于所述第一扼流板向所述门框边框的中心延伸。本发明提供的封闭门减小扼流结构的体积,进而减小微波及射频加热装置封闭门的体积,降低制作成本,提高实用性。本发明公开了一种微波炉、烤箱和烘干机。(The invention discloses a closed door, which is used for a microwave and radio frequency heating device and comprises: a doorframe frame and a choke structure; further comprising: a dielectric disposed between the door frame bezel and the choke structure; the choke structure includes: the first choke plate and the second choke plate are matched in an L shape; the first choke plate extends to the microwave and radio frequency heating device accommodating cavity along the edge of the doorframe frame and perpendicular to the doorframe frame; the second choke plate extends perpendicularly to the first choke plate along a free end of the first choke plate toward a center of the doorframe side frame. The closed door provided by the invention has the advantages that the volume of the choking structure is reduced, the volume of the closed door of the microwave and radio frequency heating device is further reduced, the manufacturing cost is reduced, and the practicability is improved. The invention discloses a microwave oven, an oven and a dryer.)

1. An enclosed door for a microwave and radio frequency heating apparatus, comprising: a doorframe frame and a choke structure; it is characterized by also comprising: a dielectric disposed between the door frame bezel and the choke structure; the choke structure includes: the first choke plate and the second choke plate are matched in an L shape; the first choke plate extends to the microwave and radio frequency heating device accommodating cavity along the edge of the doorframe frame and perpendicular to the doorframe frame; the second choke plate extends perpendicularly to the first choke plate along a free end of the first choke plate toward a center of the doorframe side frame.

2. The closure of claim 1, wherein said choke structure further comprises: a third choke plate; the third choke plate extends towards the doorframe side frame along the free end of the second choke plate perpendicular to the second choke plate; a choke cavity is formed among the doorframe side frame, the first choke plate, the second choke plate and the third choke plate.

3. A closure door in accordance with claim 1 wherein the cross-sectional length of said second choke is proportional to the wavelength of microwaves within said microwave and rf heating means; the cross-sectional length of the second choke plate is inversely proportional to the dielectric permittivity.

4. A closure door in accordance with claim 1 wherein the distance between the free end of said second choke and said doorframe jamb is proportional to the wavelength of microwaves within said microwave and rf heating apparatus; the distance between the free end of the second choke plate and the doorframe rim is inversely proportional to the dielectric permittivity.

5. A closure door according to claim 2, wherein the dielectric is a solid dielectric, a gaseous dielectric or a liquid dielectric.

6. A closure door as in claim 2 wherein said choke structure is formed with a plurality of notches spaced along the length thereof, said notches extending through said second choke, through said first choke and terminating adjacent the junction of said first choke with said frame jamb and extending through said third choke and terminating adjacent the junction of said third choke with said frame jamb.

7. The closure door of claim 6, wherein the plurality of notches are uniformly formed in the first choke plate, the second choke plate, and the third choke plate.

8. A microwave oven, comprising: a furnace body and a closure door as claimed in any one of claims 1 to 7; the front side of the furnace body is open; the closed door can be pivotally arranged on the front side of the furnace body to open or close the accommodating cavity of the furnace body.

9. An oven, comprising: a cabinet and a closure door as claimed in any one of claims 1 to 7; the front side of the box body is open; the closed door is pivotally arranged on the front side of the box body to open or close the accommodating cavity of the box body.

10. A dryer, characterized by comprising: a body and a closure door as claimed in any one of claims 1 to 7; the front side or the top side of the machine body is open; the closing door is pivotally arranged on the front side or the top side of the machine body to open or close the accommodating cavity of the machine body.