IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0632092
(2005-09-27)
|
등록번호 |
US-7728263
(2010-06-22)
|
국제출원번호 |
PCT/CN2005/001582
(2005-09-27)
|
§371/§102 date |
20070109
(20070109)
|
국제공개번호 |
WO07/036066
(2007-04-05)
|
발명자
/ 주소 |
- Zhang, Mohan
- Wang, Yaolun
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
▼
A process of controlling an operation of an electric kettle includes the steps of initializing a microprocessor to detect a water temperature via a temperature sensor to set a system parameter; checking a status of a control circuit; determining a preserve temperature of the water; verifying the tem
A process of controlling an operation of an electric kettle includes the steps of initializing a microprocessor to detect a water temperature via a temperature sensor to set a system parameter; checking a status of a control circuit; determining a preserve temperature of the water; verifying the temperature sensor to protect the temperature sensor from being burnt; determining a condition of the water whether the water is needed to be heated up or preserved; and sending out a control signal to the control circuit in responsive to the condition of the water to heat up the water or maintain the water at the preserve temperature. Therefore, the present invention is adapted to accurately control the whole process of the electric kettle.
대표청구항
▼
What is claimed is: 1. A process of controlling an operation of an electric kettle comprising a heat-up circuit to heat up a predetermined volume of water in a controlled manner, wherein said process comprises the steps of: (a) initializing a microprocessor to detect a temperature of said water via
What is claimed is: 1. A process of controlling an operation of an electric kettle comprising a heat-up circuit to heat up a predetermined volume of water in a controlled manner, wherein said process comprises the steps of: (a) initializing a microprocessor to detect a temperature of said water via a temperature sensor in said electric kettle so as to set a system parameter; (b) checking a status of said heat-up circuit, wherein said heat-up circuit is adapted to operate at an “ON” mode or an “OFF” mode, and determining a heat up time period for continuously heating up said water in said kettle; (c) setting a preserve status of said water for maintaining said water at a preserve temperature; (d) heating said water in said kettle in responsive to a condition of said water so as to heat up said water to said preserve temperature when said a temperature of said water is less than that of said preserve temperature; (e) stopping heating said water in said kettle when said temperature of said water in said kettle reaches said preserve temperature; and (f) cutting off power supply to said heat-up circuit by a cut off circuit in a controlled manner, so that said cut off circuit is arranged to cut off said power supply to said heat-up circuit for preventing said water from being totally evaporated. 2. The process, as recited in claim 1, wherein in said step (a), said microprocessor is arranged to detect said water temperature five times per second at two spaced apart detecting points of said temperature sensor, wherein said microprocessor determines said water temperature by taking an average values of two temperature readings at said two detecting points of said temperature sensor in one second. 3. The process, as recited in claim 2, wherein step (a) comprises a step of setting a plurality of system parameters in said microprocessor, wherein said system parameters contain a preset heat up cycle, a maximum heat up time and an operation code of “temperature maintain after heat up”. 4. The process, as recited in claim 2, wherein in said step (d), said heating of said water is controlled by said microprocessor, wherein when a heat up circuit is at an operation state, said microprocessor determines the time required for heating up said water, and when said heat up circuit is at an idle state, said microprocessor determines that a heat up time is zero. 5. The process, as recited in claim 3, wherein in said step (d), said heating of said water is controlled by said microprocessor, wherein when a heat up circuit is at an operation state, said microprocessor determines the time required for heating up said water, and when said heat up circuit is at an idle state, said microprocessor determines that a heat up time is zero. 6. The process, as recited in claim 2, wherein said step (d) comprises the step of sending a request signal to said microprocessor when said water need heating, wherein when said request signal is received by said microprocessor, said microprocessor is arranged to send out said a control signal to a control circuit to heat up said water and to stop heating up said water when said water reaches a predetermined temperature. 7. The process, as recited in claim 3, wherein said step (d) comprises the step of sending a request signal to said microprocessor when said water need heating, wherein when said request signal is received by said microprocessor, said microprocessor is arranged to send out said a control signal to a control circuit to heat up said water and to stop heating up said water when said water reaches a predetermined temperature. 8. The process, as recited in claim 5, wherein said step (d) comprises the step of sending a request signal to said microprocessor when said water need heating, wherein when said request signal is received by said microprocessor, said microprocessor is arranged to send out said a control signal to a control circuit to heat up said water and to stop heating up said water when said water reaches a predetermined temperature. 9. The process, as recited in claim 3, wherein said step (e) comprises a step of sending a “heat up and preserve” request signal to said microprocessor, wherein when said microprocessor receives said “heat up and preserve” request signal, said microprocessor is arranged to control said control circuit to heat up said water, wherein after said water is heated up, said water is then allow to be maintained at said preserve temperature. 10. The process, as recited in claim 5, wherein said step (e) comprises a step of sending a “heat up and preserve” request signal to said microprocessor, wherein when said microprocessor receives said “heat up and preserve” request signal, said microprocessor is arranged to control said control circuit to heat up said water, wherein after said water is heated up, said water is then allow to be maintained at said preserve temperature. 11. The process, as recited in claim 8, wherein said step (e) comprises a step of sending a “heat up and preserve” request signal to said microprocessor, wherein when said microprocessor receives said “heat up and preserve” request signal, said microprocessor is arranged to control said control circuit to heat up said water, wherein after said water is heated up, said water is then allow to be maintained at said preserve temperature. 12. The process, as recited in claim 5, further comprising a step of preventing said temperature sensor from being damaged by said microprocessor, which comprises the steps of: determining a rate of change of temperature in responsive to said average water temperature at said detecting points of said temperature sensor; comparing said rate of change of said temperature with a preset change threshold; when said rate of change of said temperature is larger than said preset change threshold, sending out said control signal by said microprocessor to said control circuit to stop heating up said water and to generate an alarm signal; when said rate of change of said temperature is smaller than said preset change threshold, determining, by said microprocessor, a rate of increase of said temperature, wherein when rate of increase of said temperature is larger than a preset threshold, said power of said heat up circuit is cut off and said alarm signal is generated. 13. The process, as recited in claim 8, further comprising a step of preventing said temperature sensor from being damaged by said microprocessor, which comprises the steps of: determining a rate of change of temperature in responsive to said average water temperature at said detecting points of said temperature sensor; comparing said rate of change of said temperature with a preset change threshold; when said rate of change of said temperature is larger than said preset change threshold, sending out said control signal by said microprocessor to said control circuit to stop heating up said water and to generate an alarm signal; when said rate of change of said temperature is smaller than said preset change threshold, determining, by said microprocessor, a rate of increase of said temperature, wherein when rate of increase of said temperature is larger than a preset threshold, said power of said heat up circuit is cut off and said alarm signal is generated. 14. The process, as recited in claim 11, further comprising a step of preventing said temperature sensor from being damaged by said microprocessor, which comprises the steps of: determining a rate of change of temperature in responsive to said average water temperature at said detecting points of said temperature sensor; comparing said rate of change of said temperature with a preset change threshold; when said rate of change of said temperature is larger than said preset change threshold, sending out said control signal by said microprocessor to said control circuit to stop heating up said water and to generate an alarm signal; when said rate of change of said temperature is smaller than said preset change threshold, determining, by said microprocessor, a rate of increase of said temperature, wherein when rate of increase of said temperature is larger than a preset threshold, said power of said heat up circuit is cut off and said alarm signal is generated.
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