IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0996313
(2006-07-11)
|
등록번호 |
US-8191464
(2012-06-05)
|
우선권정보 |
EP-05106642 (2005-07-20) |
국제출원번호 |
PCT/IB2006/052338
(2006-07-11)
|
§371/§102 date |
20080121
(20080121)
|
국제공개번호 |
WO2007/010438
(2007-01-25)
|
발명자
/ 주소 |
- Fraij, Fred
- Kooijker, Klaas
- Huizinga, Herman
- Kats, Mindert
|
출원인 / 주소 |
- Koninklijke Philips Electronics N.V.
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
6 |
초록
▼
An electric cooking appliance includes heater for heating a bowl and a sensor for sensing the temperature of the bowl. The sensor includes a movable thermal contact member to contact the wall of the bowl. The cooking appliance is provided with a detector for detecting the presence of the bowl, where
An electric cooking appliance includes heater for heating a bowl and a sensor for sensing the temperature of the bowl. The sensor includes a movable thermal contact member to contact the wall of the bowl. The cooking appliance is provided with a detector for detecting the presence of the bowl, whereby displacement of the movable thermal contact member operates the detection.
대표청구항
▼
1. An electric cooking appliance comprising: a heater for heating a bowl when connected to an electric power supply;a sensor for sensing a temperature of the bowl, wherein the sensor comprises a hinging frame and a movable thermal contact member movable in a substantially perpendicular direction whi
1. An electric cooking appliance comprising: a heater for heating a bowl when connected to an electric power supply;a sensor for sensing a temperature of the bowl, wherein the sensor comprises a hinging frame and a movable thermal contact member movable in a substantially perpendicular direction which is substantially perpendicular to a wall of the bowl to contact the wall of the bowl; anda detector for detecting a presence of the bowl, wherein displacement of said movable thermal contact member operates said detector to disconnect the electric power supply from the heater in case of absence of the bowl and to connect the electric power supply to the heater in case of detection of the presence of the bowl, wherein said detector does not contact the bowl when the bowl is inserted in the electric cooking appliance, wherein the movable thermal contact member and the detector are urged in the substantially perpendicular direction, wherein the movable thermal contact member is on the hinging frame, the hinging frame extending away from a first side of the movable thermal contact member past the detector and contacting the detector, and wherein an end of the hinging frame away from the first side of the movable thermal contact member is pivotably mounted on a casing that receives the bowl. 2. The electric cooking appliance as claimed in claim 1, further comprising a casing, wherein the bowl is a removable bowl, wherein the casing encloses the removable bowl, and wherein the casing is provided with the heater and with the sensor. 3. The electric cooking appliance as claimed in claim 2, wherein the cooking appliance is a deep fat fryer. 4. The electric cooking appliance as claimed in claim 1, wherein a part of the sensor that moves together with the movable thermal contact member abuts a switch member, so that a switch is operated by movement of the movable thermal contact member. 5. The electric cooking appliance as claimed in claim 1, wherein the movable thermal contact member and the detector are urged in the substantially perpendicular direction by at least two springs that are parallel to each other. 6. The electric cooking appliance as claimed in claim 1, wherein the movable thermal contact member is urged against the wall of the bowl by a spring member. 7. The electric cooking appliance as claimed in claim 1, further comprising controller for disconnecting the electric power supply to the heater when the detector does not detect the presence of the bowl. 8. A detector for an electric cooking appliance comprising: a heater for heating a bowl when connected to an electric power supply;a sensor for sensing a temperature of a bowl, wherein the sensor comprises a hinging frame and a movable thermal contact member movable in a substantially perpendicular direction which is substantially perpendicular to a wall of the bowl to contact the wall of the bowl; anddetection device configured to detect a presence of the bowl, wherein displacement of said movable thermal contact member operates said detection device to disconnect the electric power supply from the heater in case of absence of the bowl and to connect the electric power supply to the heater in case of detection of the presence of the bowl, and wherein said detection device does not contact the bowl when the bowl is inserted in the electric cooking appliance, wherein the movable thermal contact member and the detection device are urged in the substantially perpendicular direction, wherein the movable thermal contact member is on the hinging frame, the hinging frame extending away from a first side of the movable thermal contact member past the detection device and contacting the detection device, and wherein an end of the hinging frame away from the first side of the movable thermal contact member is pivotably mounted on a casing that receives the bowl. 9. A method for detecting a presence of a removable bowl at an electric cooking appliance comprising the acts of: heating the removable bowl by connecting a heater to an electric power supply;sensing a temperature of the removable bowl by urging a movable thermal contact member against a wall of the removable bowl in a substantially perpendicular direction which is substantially perpendicular to the wall of the bowl; anddetecting a presence of the removable bowl by a detector, wherein displacement of said movable thermal contact member operates said detector to disconnect the electric power supply from the heating means in case of absence of the removable bowl and to connect the electric power supply to the heating means in case of detection of the presence of the removable bowl, and wherein said detector does not contact the removable bowl when the removable bowl is inserted in the electric cooking appliance, wherein the movable thermal contact member and the detector are urged in the substantially perpendicular direction, wherein the movable thermal contact member is on a hinging frame, the hinging frame extending away from a first side of the movable thermal contact member past the detector and contacting the detector, and wherein an end of the hinging frame away from the first side of the movable thermal contact member is pivotably mounted on a casing that receives the bowl. 10. The electric cooking appliance of claim 1, wherein the movable thermal contact member is pivotably mounted on the casing that receives the bowl. 11. The detector of claim 8, wherein the movable thermal contact member is pivotably mounted on the casing that receives the bowl. 12. The method of claim 9, wherein the detector is pivotably mounted on the casing that receives the removable bowl. 13. The detector of claim 8, wherein the movable thermal contact member and the detector are urged in the substantially perpendicular direction by at least two springs that are parallel to each other. 14. The method of claim 9, wherein the movable thermal contact member and the detector are urged in the substantially perpendicular direction by at least two springs that are parallel to each other. 15. The electric cooking appliance of claim 1, wherein the movable thermal contact member is pivotably mounted on a side wall of the casing, and the heater is located at a bottom wall of the casing. 16. The detector of claim 8, wherein the movable thermal contact member is pivotably mounted on a side wall of the casing, and the heater is located at a bottom wall of the casing. 17. The method of claim 9, wherein the movable thermal contact member is pivotably mounted on a side wall of the casing, and the heater is located at a bottom wall of the casing. 18. The electric cooking appliance of claim 1, further comprising a spring between an outer plate of the electric cooking appliance and a further end of the hinging frame, wherein the further end of the hinging frame is at a second side of the sensor opposite the first side. 19. The detector of claim 8, further comprising a spring between an outer plate of the electric cooking appliance and a further end of the hinging frame, wherein the further end of the hinging frame is at a second side of the sensor opposite the first side. 20. The method of claim 9, further comprising the act of providing a spring between an outer plate of the electric cooking appliance and a further end of the hinging frame, wherein the further end of the hinging frame is at a second side of the sensor opposite the first side.
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