[특허]Heating cooker with safety device for microwave oven

Kim, Jong Hyun

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Heating cooker with safety device for microwave oven

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05B-006/80 H05B-006/64 A47J-027/088
출원번호	US-0201105 (2009-02-11)
등록번호	US-10231291 (2019-03-12)
국제출원번호	PCT/KR2009/000642 (2009-02-11)
§371/§102 date	20111101 (20111101)
국제공개번호	WO2010/093068 (2010-08-19)
발명자 / 주소	Kim, Jong Hyun
출원인 / 주소	Kim, Jong Hyun
대리인 / 주소	Birch, Stewart, Kolasch & Birch, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 27

초록
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A heating cooker for a microwave oven in which in a main body through which microwaves are transmitted, an upper portion of a metallic pan is closely coupled, and a heating sheet receiving the microwaves and generating heat and an insulating support are coupled in order onto an undersurface of the pan, the heating cooker including a safety device configured such that a silicone packing is provided in a section of the close coupling between the pan and the main body, and so that if internal pressure of the cooker rises abnormally, the silicone packing is ...

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청구항
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1. A heating cooker for a microwave oven, comprising: a main body through which microwaves are transmitted, the main body having a bottom wall and a sidewall extending upwardly from the bottom wall, the bottom wall having an upper surface and a lower surface;a metallic pan, the metallic pan having a bottom wall and a sidewall extending upwardly from the bottom wall, the bottom wall having an upper surface and a lower surface, an upper portion of the metallic pan closely coupled with the main body;a heating sheet disposed below the metallic pan for receiving the microwaves and generating heat, the heating sheet being in contact with the metallic pan;an insulating support having elasticity and disposed between the heating sheet and the main body, wherein the insulating support has a lower surface contacting the upper surface of the bottom wall of the main body, and an upper surface of the insulating support contacting the lower surface of the bottom wall of the metallic pan and a lower surface of the heating sheet and a side surface of the heating sheet to secure the heating sheet to the metallic pan by an upward elastic force thereof and to reduce heat transfer to the main body;a ventilation hole provided in a bottom of the main body and communicating with outside;a packing groove provided in the main body and spaced below a top edge of the sidewall of the main body, the packing groove having an upper surface, a lower surface and an inner surface extending between the upper surface of the packing groove and the lower surface of the packing groove; anda silicone packing having an elasticity provided in a section of a close coupling between the metallic pan and the main body, the silicone packing having an upper surface, a lower surface, an inner surface and an outer surface,wherein the upper surface of the silicone packing contacts the upper surface of the packing groove and the lower surface of the silicone packing contacts the lower surface of the packing groove such that the packing groove receives the silicone packing,wherein the silicone packing includes a circumferential groove in the inner surface of the silicone packing and located between the upper surface of the silicone packing and the lower surface of the silicone packing and into which a circumference of the sidewall of the metallic pan is inserted, andwherein, when the heating cooker is operated, if an internal pressure of a space between the metallic pan and the main body rises over a threshold value due to a clogging of the ventilation hole, the silicone packing is configured to be decoupled from the packing groove of the main body so as to reduce the internal pressure. 2. The heating cooker according to claim 1, wherein the outer surface of the silicon packing has a wedge-shape so that a space is formed between the outer surface of the silicone packing and the inner surface of the packing groove, a width of the space at the lower surface of the packing groove being greater than the width of the space at the upper surface of the packing groove. 3. The heating cooker according to claim 2, wherein the silicone packing is further provided with a contact rib protruding from the upper surface of the silicone packing so as to come into close contact with the sidewall of the main body. 4. The heating cooker according to claim 1, wherein the insulating support is composed of an inherently elastic ceramic wool material so that if pressure is applied from topside, the insulating support elastically supports the heating sheet and the metallic pan upwards. 5. The heating cooker according to claim 4, wherein the main body is provided with two or more ribs each protruding upwardly from the bottom wall of the main body, and wherein the ventilation hole is provided in a region between the two or more ribs in order to prevent the ventilation hole from being clogged by the insulating support. 6. The heating cooker according to claim 2, wherein the insulating support is composed of an inherently elastic ceramic wool material so that if pressure is applied from topside, the insulating support elastically supports the heating sheet and the metallic pan upwards. 7. The heating cooker according to claim 3, wherein the insulating support is composed of an inherently elastic ceramic wool material so that if pressure is applied from topside, the insulating support elastically supports the heating sheet and the metallic pan upwards. 8. The heating cooker according to claim 6, wherein the main body is provided with two or more ribs each protruding upwardly from the bottom wall of the main body, and wherein the ventilation hole is provided in a region between the two or more ribs in order to prevent the ventilation hole from being clogged by the insulating support. 9. The heating cooker according to claim 7, wherein the main body is provided with two or more ribs each protruding upwardly from the bottom wall of the main body, and wherein the ventilation hole is provided in a region between the two or more ribs in order to prevent the ventilation hole from being clogged by the insulating support. 10. A heating cooker for a microwave oven, comprising: a main body through which microwaves are transmitted, the main body having a bottom wall and a sidewall extending upwardly from the bottom wall, the bottom wall having an upper surface and a lower surface;a packing groove provided in the sidewall of the main body and spaced below a top edge of the sidewall of the main body, the packing groove having an upper surface, a lower surface and an inner surface extending between the upper surface of the packing groove and the lower surface of the packing groove;a pan having a bottom wall and a sidewall extending upwardly from the bottom wall, the bottom wall having an upper surface and a lower surface;a heating sheet disposed below the pan for receiving the microwaves and generating heat, the heating sheet being in contact with the pan;an insulating support having elasticity and disposed between the heating sheet and the main body, wherein the insulating support has a lower surface contacting the upper surface of the bottom wall of the main body, and an upper surface contacting the lower surface of the pan and a lower surface of the heating sheet and a side surface of the heating sheet to secure the heating sheet to the pan by an upward elastic force thereof and to reduce heat transfer to the main body;a ventilation hole provided in a bottom of the main body and communicating with outside; anda silicone packing having an elasticity attached to the sidewall of the pan and engaging the packing groove, the silicone packing having an upper surface, a lower surface, an inner surface and an outer surface,wherein the upper surface of the silicone packing contacts the upper surface of the packing groove and the lower surface of the silicone packing contacts the lower surface of the packing groove such that the packing groove receives the silicone packing,wherein the silicone packing includes a circumferential groove in the inner surface of the silicone packing and located between the upper surface of the silicone packing and the lower surface of the silicone packing into which a circumference of the sidewall of the pan is inserted, andwherein, when the heating cooker is operated, if an internal pressure of a space between the pan and the main body rises over a threshold value due to a clogging of the ventilation hole, the silicone packing disengages from the packing groove so as to reduce the internal pressure. 11. The heating cooker according to claim 10, wherein the silicone packing is further provided with a contact rib protruding from the upper surface of the silicone packing so as to come into close contact with an inner surface of the main body. 12. The heating cooker according to claim 10, wherein the insulating support is composed of an inherently elastic ceramic wool material so that if pressure is applied from topside, the insulating support elastically supports the heating sheet and the pan upwards. 13. The heating cooker according to claim 10, wherein the main body is provided with two or more ribs each protruding upwardly from the bottom wall of the main body, and wherein the ventilation hole is provided in a region between the two or more ribs in order to prevent the ventilation hole from being clogged by the insulating support. 14. The heating cooker according to claim 1, wherein the insulating support is a sheet of material occupying an entire space between an the upper surface of the bottom wall of the main body and the lower surface of the heating sheet. 15. The heating cooker according to claim 14, wherein the insulating support is larger than the heating sheet so as to extend beyond the side surface of the heating sheet. 16. The heating cooker according to claim 1, wherein the insulating support is a single sheet of material. 17. The heating cooker according to claim 10, wherein the insulating support is a sheet of material occupying an entire space between the upper surface of the bottom wall of the main body and the lower surface of the heating sheet. 18. The heating cooker according to claim 17, wherein the insulating support is larger than the heating sheet so as to extend beyond the side surface of the heating sheet. 19. The heating cooker according to claim 10, wherein the insulating support is a single sheet of material. 20. The heating cooker according to claim 10, wherein the outer surface of the silicon packing has a wedge-shape so that a space is formed between the outer surface of the silicone packing and the inner surface of the packing groove, a width of the space at the lower surface of the packing groove being greater than the width of the space at the upper surface of the packing groove.

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Heating cooker with safety device for microwave oven

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Heating cooker with safety device for microwave oven

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