Household appliance having a warming drawer with a thermally conductive layer
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A47J-036/26
F24C-015/18
H05B-003/30
H05B-003/22
F24C-007/00
F24C-015/10
H05B-003/26
A47J-039/00
출원번호
US-0483097
(2012-05-30)
등록번호
US-9347671
(2016-05-24)
발명자
/ 주소
Bringe, William
Harward, Samuel
Warf, Benjamin
출원인 / 주소
BSH Home Appliances Corporation
대리인 / 주소
Howard, James E.
인용정보
피인용 횟수 :
2인용 특허 :
20
초록▼
A household appliance includes a warming drawer housing having an interior chamber and a warming drawer module in the interior chamber. The warming drawer module includes a glass heating element forming a floor surface of the warming drawer module for receiving items to be warmed, a thermostat havin
A household appliance includes a warming drawer housing having an interior chamber and a warming drawer module in the interior chamber. The warming drawer module includes a glass heating element forming a floor surface of the warming drawer module for receiving items to be warmed, a thermostat having a sensor measuring a temperature of the glass heating element, the thermostat being disposed under the glass heating element, and a thermally conductive layer disposed between an underside of the glass heating element and the sensor of the thermostat.
대표청구항▼
1. A household appliance comprising: a warming drawer housing having an interior chamber; anda warming drawer module in the interior chamber, the warming drawer module being movable with respect to the warming drawer housing, the warming drawer module comprising a functional assembly configured to b
1. A household appliance comprising: a warming drawer housing having an interior chamber; anda warming drawer module in the interior chamber, the warming drawer module being movable with respect to the warming drawer housing, the warming drawer module comprising a functional assembly configured to be, as a whole, releasably coupled to and decoupled from the warming drawer housing, the functional assembly including: a heating element forming a floor surface of the warming drawer module, the floor surface for receiving items to be warmed, the heating element being coupled to and movable with the warming drawer module;a thermostat having a sensor measuring a temperature of the heating element, the thermostat disposed under the heating element;a substantially planar thermally conductive layer disposed between an underside of the heating element and the sensor of the thermostat,wherein the warming drawer module is movable between a first position in which the heating element of the warming drawer module is in the interior chamber of the warming drawer housing and a second position in which a part of the heating element of the warming drawer module is outside the warming drawer housing;a power source on the warming drawer housing, the power source coupled to the heating element by an electrical connection when the warming drawer module is in the first position and the second position; anda control panel on the warming drawer module, the control panel controlling the heating element when the warming drawer module is in the first position and the second position,wherein the warming drawer module is releasably coupled to the warming drawer housing by a fixation element at a front of the warming drawer module and accessible from the front of the warming drawer module when the warming drawer module is in the first position such that the functional assembly of the warming drawer module is capable of being, as a whole, releasably coupled to and decoupled from the warming drawer housing. 2. The household appliance of claim 1, wherein the substantially planar thermally conductive layer includes a thermally conductive and electrically resistant layer. 3. The household appliance of claim 1, wherein the substantially planar thermally conductive layer includes one of a substantially planar thermally conductive sheet and a substantially planar thermally conductive tape. 4. The household appliance of claim 3, wherein the substantially planar thermally conductive layer includes an adhesive layer on a first side of the thermally conductive layer that contacts the thermostat. 5. The household appliance of claim 3, wherein the substantially planar thermally conductive layer includes a first adhesive layer on a first side of the substantially planar thermally conductive layer that contacts the thermostat and a second adhesive layer on a second side of the substantially planar thermally conductive layer that contacts the underside of the heating element. 6. The household appliance of claim 1, wherein, when the warming drawer is in an assembled state, the substantially planar thermally conductive layer is in a compressed state between the thermostat and the underside of the heating element. 7. The household appliance of claim 1, wherein the substantially planar thermally conductive layer includes a shape, when viewed in a direction perpendicular to a plane of the substantially planar thermally conductive layer, that corresponds to a shape of the thermostat. 8. The household appliance of claim 1, further comprising: a support plate that supports the heating element in a position above the support plate,wherein the substantially planar thermally conductive layer includes a thermally conductive sheet disposed between the support plate and the underside of the heating element, the substantially planar thermally conductive sheet covering the thermostat and an entire surface of the support plate. 9. The household appliance of claim 1, wherein the power source supplies power to the control panel that controls the heating element when the warming drawer module is in the first position and the second position such that the control panel is capable of adjustably controlling the heating element based on a selected temperature setting of a plurality of temperature settings when the warming drawer module is in the first position and the second position. 10. The household appliance of claim 1, wherein the warming drawer module further includes: a frame surrounding the heating element; anda front panel coupled to the frame and covering an opening of the interior chamber of the warming drawer housing when the warming drawer module is in the first position. 11. The household appliance of claim 1, wherein the heating element includes a resistance heating element. 12. The household appliance of claim 1, wherein the heating element includes: a glass ceramic surface;a conductive coating forming a circuit on an underside of the ceramic surface, andan electrical connection for supplying power to the conductive coating. 13. A household appliance comprising: a warming drawer housing having an interior chamber; anda warming drawer module in the interior chamber, the warming drawer module including: a heating element forming a floor surface of the warming drawer module, the floor surface for receiving items to be warmed;a thermostat having a sensor measuring a temperature of the heating element, the thermostat disposed under the heating element;a thermally conductive layer disposed between an underside of the heating element and the sensor of the thermostat; anda support plate that supports the heating element at a plurality of contact points and in a position above the support plate,wherein the thermally conductive layer includes a thermally conductive sheet disposed between the support plate and the underside of the heating element, the thermally conductive sheet covering the thermostat and the plurality of contact points. 14. A household appliance comprising: a warming drawer housing having an interior chamber; anda warming drawer module in the interior chamber, the warming drawer module including: a heating element forming a floor surface of the warming drawer module, the floor surface for receiving items to be warmed;a thermostat having a sensor measuring a temperature of the heating element, the thermostat disposed under the heating element;a thermally conductive layer disposed between an underside of the heating element and the sensor of the thermostat; anda support plate that supports the heating element in a position above the support plate, the support plate including a plate portion and a plurality of embosses on the plate portion, the plurality of embosses supporting an underside of the heating element at a predetermined distance above the plate portion and forming a space between the plate portion and the underside of the heating element in which the thermostat is disposed. 15. The household appliance of claim 14, wherein the thermally conductive layer is disposed between an emboss of the plurality of embosses and the underside of the heating element. 16. The household appliance of claim 15, wherein the thermally conductive layer includes a shape that corresponds to a shape of the emboss. 17. The household appliance of claim 14, wherein the thermally conductive layer is disposed between each emboss of the plurality of embosses and the underside of the heating element. 18. The household appliance of claim 14, further comprising: wherein the thermally conductive layer includes a thermally conductive sheet disposed between the support plate and the underside of the heating element, the thermally conductive sheet covering the thermostat and the plurality of embosses. 19. The household appliance of claim 14, further comprising: wherein the thermally conductive layer includes a plurality of thermally conductive tape portions, each of the plurality of thermally conductive tape portions being disposed between a respective one of the plurality of embosses and the thermostat. 20. The household appliance of claim 14, wherein a height of an emboss of the plurality of embosses is equal to the predetermined distance. 21. The household appliance of claim 14, wherein the thermally conductive layer is disposed between the plurality of embosses and the underside of the heating element, wherein, when the warming drawer is in an assembled state, the thermally conductive layer is in a compressed state between the plurality of embosses and the underside of the heating element, andwherein, when the warming drawer is in an assembled state, a sum of a height of an emboss of the plurality of embosses and a compressed thickness of the thermally conductive layer is equal to the predetermined distance. 22. The household appliance of claim 21, wherein the thermally conductive layer includes a thermally conductive and electrically resistant layer. 23. The household appliance of claim 14, wherein the plate portion includes a first opening for guiding a wire from the heating element from the space between the plate portion and the underside of the heating element to an underside of the support plate, and wherein the thermally conductive layer includes a second opening corresponding to the first opening for guiding the wire from the heating element from the space between the plate portion and the underside of the heating element to an underside of the support plate. 24. The household appliance of claim 14, wherein the plate portion includes an opening for positioning a thermostat in the space between the plate portion and the underside of the heating element. 25. The household appliance of claim 14, wherein the warming drawer module further includes: a telescopic drawer slide coupled to the support plate, the telescopic drawer slide facilitating the movement of the warming drawer module between the first position and the second position. 26. A household appliance comprising: a warming drawer housing having an interior chamber; anda warming drawer module in the interior chamber, the warming drawer module being movable with respect to the warming drawer housing, the warming drawer module comprising a functional assembly configured to be, as a whole, releasably coupled to and decoupled from the warming drawer housing, the functional assembly including: a heating element forming a floor surface of the warming drawer module, the floor surface for receiving items to be warmed, the heating element being coupled to and movable with the warming drawer module;a thermostat having a sensor measuring a temperature of the heating element, the thermostat disposed under the heating element;substantially planar thermally conducting means for thermally coupling an underside of the heating element and the sensor of the thermostat,wherein the warming drawer module is movable between a first position in which the heating element of the warming drawer module is in the interior chamber of the warming drawer housing and a second position in which a part of the heating element of the warming drawer module is outside the warming drawer housing;a power source on the warming drawer housing, the power source coupled to the heating element by an electrical connection when the warming drawer module is in the first position and the second position; anda control panel for adjustably controlling the heating element based on a selected temperature setting of a plurality of temperature settings when the warming drawer module is in the first position and the second positionwherein the warming drawer module is releasably coupled to the warming drawer housing by a fixation element at a front of the warming drawer module and accessible from the front of the warming drawer module when the warming drawer module is in the first position such that the functional assembly of the warming drawer module is capable of being, as a whole, releasably coupled to and decoupled from the warming drawer housing. 27. The household appliance of claim 26, further comprising: support means for supporting the heating element in a position above the support plate, the support means supporting an underside of the heating element at a predetermined distance above a plate portion of the support means and forming a space between the plate portion and the underside of the heating element in which the thermostat is disposed,wherein the substantially planar thermally conducting means electrically insulates the underside of the heating element from the support means. 28. The household appliance of claim 26, wherein the heating element includes: a glass ceramic surface;a conductive coating forming a circuit on an underside of the ceramic surface, andan electrical connection for supplying power to the conductive coating. 29. A household appliance comprising: a warming drawer housing having an interior chamber; anda warming drawer module in the interior chamber, the warming drawer module including: a heating element forming a floor surface of the warming drawer module, the floor surface for receiving items to be warmed;a thermostat having a sensor measuring a temperature of the heating element, the thermostat disposed under the heating element;thermally conducting means for thermally coupling an underside of the heating element and the sensor of the thermostat; anda support plate that supports the heating element in a position above the support plate, the support plate including a plate portion and a plurality of embosses on the plate portion, the plurality of embosses supporting an underside of the heating element at a predetermined distance above the plate portion and forming a space between the plate portion and the underside of the heating element in which the thermostat is disposed,wherein the thermally conducting means electrically insulates the underside of the heating element from the plurality of embosses. 30. A household appliance comprising: a warming drawer housing having an interior chamber; anda warming drawer module in the interior chamber, the warming drawer module being movable with respect to the warming drawer housing, the warming drawer module comprising a functional assembly configured to be, as a whole, releasably coupled to and decoupled from the warming drawer housing, the functional assembly including: a heating element forming a floor surface of the warming drawer module, the floor surface for receiving items to be warmed, the heating element being coupled to and movable with the warming drawer module;a thermostat having a sensor measuring a temperature of the heating element, the thermostat disposed under the heating element;a substantially planar thermally conductive layer disposed between an underside of the heating element and the sensor of the thermostat,wherein the warming drawer module is movable between a first position in which the heating element of the warming drawer module is in the interior chamber of the warming drawer housing and a second position in which a part of the heating element of the warming drawer module is outside the warming drawer housing;a power source on the warming drawer housing, the power source coupled to the heating element by an electrical connection when the warming drawer module is in the first position and the second position;a control panel on the warming drawer module, the control panel controlling the heating element when the warming drawer module is in the first position and the second position; anda support plate that supports the heating element at a predetermined distance above the support plate and forms a space between the support plate and the underside of the heating element, wherein the thermostat is disposed in the space between the support plate and the underside of the heating element;wherein the support plate includes an opening, andwherein the electrical connection extends from the heating element into the space between the support plate and the underside of the heating element, through the opening in the support plate, and to the power source when the warming drawer module is in the first position and the second position. 31. The household appliance of claim 30, wherein the support plate includes another opening for guiding another electrical connection from the thermostat to the control panel when the warming drawer module is in the first position and the second position.
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