IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0662868
(2005-12-21)
|
등록번호 |
US-7637476
(2010-01-07)
|
우선권정보 |
EP-04380281(2004-12-29) |
국제출원번호 |
PCT/EP05/013757
(2005-12-21)
|
§371/§102 date |
20070314
(20070314)
|
국제공개번호 |
WO06/069686
(2006-07-06)
|
발명자
/ 주소 |
- Mugica, Jose Ignacio
- Fernandez, Gonzalo
- Ayastuy, Iñaki
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
38 인용 특허 :
5 |
초록
▼
"Control system for a gas cooking device or any other gas device comprising at least one gas burner (1) and, for each gas burner (1), an electromagnetic valve (2) to open or cut off the gas flow to the gas burner (1), said electromagnetic valve (2) comprising magnetic means (10, 11, 12) to keep the
"Control system for a gas cooking device or any other gas device comprising at least one gas burner (1) and, for each gas burner (1), an electromagnetic valve (2) to open or cut off the gas flow to the gas burner (1), said electromagnetic valve (2) comprising magnetic means (10, 11, 12) to keep the gas flow open, and an actuator (3) that is operated manually so that it acts on the magnetic means (10, 11, 12) of the electromagnetic valve (2), thereby opening the gas flow. The control system (20) generates a current signal (I) that circulates through the magnetic means (10, 11, 12) of the electromagnetic valve (2) and detects when the actuator (3) is operated in accordance with the change in magnetic reluctance of said magnetic means (10, 11, 12)."
대표청구항
▼
The invention claimed is: 1. Control system for a gas cooking device or any other gas device comprising at least one gas burner and, for each gas burner an electromagnetic valve to open or cut off the gas flow to the gas burner, said electromagnetic valve comprising magnetic means to keep the gas f
The invention claimed is: 1. Control system for a gas cooking device or any other gas device comprising at least one gas burner and, for each gas burner an electromagnetic valve to open or cut off the gas flow to the gas burner, said electromagnetic valve comprising magnetic means to keep the gas flow open, and an actuator that is operated manually so that it can act on the magnetic means of the electromagnetic valve, thereby opening the gas flow, wherein the control system detects when the actuator is operated, said control system generating a current signal that circulates through the magnetic means so that, when said actuator is operated, a change in magnetic reluctance of the magnetic means occurs, the control system detecting the operating of the actuator in accordance with said change in magnetic reluctance. 2. Control system according to claim 1, wherein the change in magnetic reluctance is detected by checking the voltage in the terminals of the magnetic means. 3. Control system according to claim 2, wherein the current signal is generated from a pulse signal and the voltage in terminals of the magnetic means is checked during the pulses of said pulse signal. 4. Control system according to claim 3, wherein the voltage in the terminals of the magnetic means is checked in a sampling instant from the beginning of each pulse, so that the control system determines that the actuator has been operated because, due to the change in magnetic reluctance caused by said operating, the checked voltage moves, between consecutive pulses, from a smaller value than a reference voltage to a larger value than said reference voltage. 5. Control system according to claim 4, wherein said sampling instant is in the interval between a first instant and a second instant, said first instant being the instant from the beginning of each pulse in which, with the actuator not operated, the voltage in the terminals of the magnetic means reaches the reference voltage, and said second instant being the instant from the beginning of each pulse in which, when the actuator is operated, the voltage in the terminals of the magnetic means reaches the reference voltage. 6. Control system according to claim 3, wherein the pulse signal has a frequency between 20 Hz and 1 kHz. 7. Control system according to claim 6, wherein the pulse signal has a frequency of 50 Hz. 8. Control system according to claim 1, wherein a spark generator is acted on when a change in magnetic reluctance of the magnetic means is detected, with said spark generator generating a series of sparks to light a flame in the burner. 9. Control system according to claim 1, wherein assistance means are acted on when the change in magnetic reluctance of the magnetic means is detected, causing said assistance means to circulate a maintenance current through said magnetic means to keep the gas flow open.
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