IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0758174
(2004-01-15)
|
우선권정보 |
SE-0303228(2003-12-01) |
발명자
/ 주소 |
- Karlsson,Arne
- Hallin,Ingemar
- Lindhagen,Carl
- Reithe,Fredrik
- Lundqvist,Anton
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
▼
The present invention relates to an absorption refrigerator including a cabinet having outer walls and at least one door encasing a low temperature storage compartment and a higher temperature storage compartment, said compartments being separated by a partition wall, an absorption refrigerating sys
The present invention relates to an absorption refrigerator including a cabinet having outer walls and at least one door encasing a low temperature storage compartment and a higher temperature storage compartment, said compartments being separated by a partition wall, an absorption refrigerating system including an evaporator tube in which a refrigeration medium flows from an upstream end to a downstream end of the evaporator tube, and which evaporator tube comprises a first tube section which is arranged to absorb heat from the low temperature compartment, and at least a second tube section, which is arranged to absorb heat from the higher temperature compartment, a battery arranged to supply power to electronic equipment in said absorption refrigerating system, a control system arranged to control start and stop of said absorption refrigerating system to control the temperature in at least said higher temperature storage compartment to be within a specified temperature range, and a heater arranged in said higher temperature storage compartment provided to apply heat to said higher temperature compartment. The refrigerator is characterized in that said control system comprises a sensor arranged to detect if said battery is currently charged or if AC-power is available, and that said control system is arranged to set freezer control values to a first set of freezer control values if said battery is charged or if AC-power is available and to a second set of freezer control values if said battery is not charged or if AC-power is not available, where at least one of the values in said second set of freezer control values is higher than both values in said first set of freezer control values.
대표청구항
▼
What is claimed is: 1. Absorption refrigerator (1) including a cabinet having outer walls (2, 3, 4, 5, 6) and at least one door (7, 8) encasing a low temperature storage compartment (9) and a higher temperature storage compartment (10), said compartments being separated by a partition wall (11), an
What is claimed is: 1. Absorption refrigerator (1) including a cabinet having outer walls (2, 3, 4, 5, 6) and at least one door (7, 8) encasing a low temperature storage compartment (9) and a higher temperature storage compartment (10), said compartments being separated by a partition wall (11), an absorption refrigerating system including an evaporator tube (20) in which a refrigeration medium flows from an upstream end to a downstream end of the evaporator tube, and which evaporator tube comprises a first tube section (21) which is arranged to absorb heat from the low temperature compartment, and at least a second tube section (22), which is arranged to absorb heat from the higher temperature compartment, a battery arranged to supply power to electronic equipment in said absorption refrigerating system, a control system arranged to control start and stop of said absorption refrigerating system to control the temperature in at least said higher temperature storage compartment to be within a specified temperature range, and a heater arranged in said higher temperature storage compartment provided to apply heat to said higher temperature compartment, characterized in that, said control system comprises a sensor arranged to detect if said battery is currently charged or if AC-power is available, said control system is arranged to set freezer control values to a first set of freezer control values if said battery is charged or if AC-power is available and to a second set of freezer control values if said battery is not charged or if AC-power is not available, where at least one of the values in said second set of freezer control values is higher than both values in said first set of freezer control values. 2. Absorption refrigerator according to claim 1, wherein said freezer control values are provided to control start and/or stop of said absorption refrigerating system. 3. Absorption refrigerator according to claim 1, wherein said freezer control values are provided to control application of heat in said higher temperature compartment. 4. Absorption refrigerator according to claim 1, wherein said freezer control values comprises a higher freezer temperature threshold and a lower freezer temperature threshold. 5. Absorption refrigerator according to claim 4, wherein said control system is provided to control the temperature in said higher and lower temperature compartments by: starting said absorption refrigerating system if either the temperature in said higher temperature compartment is above said specified temperature range or the temperature in said lower temperature compartment is above said higher freezer temperature threshold, and stopping said absorption refrigerating system if both the temperature in said higher temperature compartment is below said specified temperature range, and the temperature in said lower temperature compartment is below said lower freezer temperature threshold. 6. Absorption refrigerator according to claim 1, wherein said control system is provided to control the temperature in said higher temperature storage compartment by starting said absorption refrigerating system if the temperature in said higher temperature storage department is above said specified temperature range and stop said absorption refrigerating system if the temperature in said higher temperature storage department is below said specified temperature range. 7. Absorption refrigerator according to claim 1, wherein said control system is provided to apply heat to said higher temperature compartment if the temperature in said higher temperature compartment is below a first specified temperature and stop application of heat if the temperature in said higher temperature compartment rises above a second specified temperature. 8. Absorption refrigerator according to claim 4, wherein said control system is provided to stop application of heat to said higher temperature compartment if the temperature in said lower temperature compartment is below said lower freezer temperature threshold. 9. Absorption refrigerator according to claim 1, wherein said heater is powered by said battery. 10. Absorption refrigerator according to claim 1, wherein said heater is also used for defrosting purposes. 11. Absorption refrigerator according to claim 2, wherein said first set of freezer control values comprises a higher freezer temperature threshold in the range of-14째 to-18째 Celsius, preferably-16째 Celsius, and a lower freezer temperature threshold in the range of-20째 to-16째 Celsius, preferably-18째 Celsius, and said second set of freezer control values comprises a higher freezer temperature threshold in the range of-10째 to-14째 Celsius, preferably-12째 Celsius, and a lower freezer temperature threshold in the range of-16째 to-12째 Celsius, preferably-14째 Celsius. 12. Method for controlling the temperature in an absorption refrigerator (1), wherein said refrigerator includes a cabinet having outer walls (2, 3, 4, 5, 6) and at least one door (7, 8) encasing a low temperature storage compartment (9) and a higher temperature storage compartment (10), said compartments being separated by a partition wall (11), an absorption refrigerating system including an evaporator tube (20) in which a refrigeration medium flows from an upstream end to a downstream end of the evaporator tube, and which evaporator tube comprises a first tube section (21) which is arranged to absorb heat from the low temperature compartment, and at least a second tube section (22), which is arranged to absorb heat from the higher temperature compartment, a battery arranged to supply power to said absorption refrigerating system during at least part of the operating time for said absorption refrigerator, and a heater arranged in said higher temperature storage compartment provided to apply heat to said higher temperature compartment, characterized in the steps of, detecting if said battery is currently charged or if AC-power is available, setting freezer control values to a first set of freezer control values if said battery is charged or if AC-power is available, and setting said freezer control values to a second set of freezer control values if said battery is not charged or if AC-power is not available, wherein at least one of the values in said second set of freezer control values is higher than both values in said first set of freezer control values. 13. The method according to claim 12, comprising the step of: controlling start and/or stop of said absorption refrigerating system in dependence of the temperature in said low temperature compartment and said freezer control values. 14. The method according to claim 12, comprising the step of: controlling application of heat in said higher temperature compartment in dependence of the temperature in said low temperature compartment and said freezer control values. 15. The method according to claim 12, wherein said freezer control values comprises a higher freezer temperature threshold and a lower freezer temperature threshold. 16. The method according to claim 15, comprising the step of: starting said absorption refrigerating system if either the temperature in said higher temperature compartment is above a specified temperature range or the temperature in said lower temperature compartment is above said higher freezer temperature threshold, and stopping said absorption refrigerating system if both the temperature in said higher temperature compartment is below said specified temperature range, and the temperature in said lower temperature compartment is below said lower freezer temperature threshold. 17. The method according to claim 12, comprising the steps of: controlling the temperature in said higher temperature storage compartment by starting said absorption refrigerating system if the temperature in said higher temperature storage department is above a specified temperature range, and stopping said absorption refrigerating system if the temperature in said higher temperature storage department is below said specified temperature range. 18. The method according to claim 12, comprising the steps of: applying heat to said higher temperature compartment if the temperature in said higher temperature compartment is below a first specified temperature and stopping application of heat to said higher temperature compartment if the temperature in said higher temperature compartment is above a second specified temperature. 19. The method according to claim 15, comprising the step of: stopping application of heat to said higher temperature compartment if the temperature in said lower temperature compartment is below said lower freezer temperature threshold. 20. Method for controlling the temperature in an absorption refrigerator (1), wherein said refrigerator includes a cabinet having outer walls (2, 3, 4, 5, 6) and at least one door (7, 8) encasing a low temperature storage compartment (9) and a higher temperature storage compartment (10), said compartments being separated by a partition wall (11), an absorption refrigerating system including an evaporator tube (20) in which a refrigeration medium flows from an upstream end to a downstream end of the evaporator tube, and which evaporator tube comprises a first tube section (21) which is arranged to absorb heat from the low temperature compartment, and at least a second tube section (22), which is arranged to absorb heat from the higher temperature compartment, and a heater arranged in said higher temperature storage compartment provided to apply heat to said higher temperature compartment, characterized in the steps of, starting said absorption refrigerating system if either the temperature in said higher temperature compartment is above said specified temperature range or the temperature in said lower temperature compartment is above a higher freezer temperature threshold, and stopping said absorption refrigerating system if both the temperature in said higher temperature compartment is below said specified temperature range, and the temperature in said lower temperature compartment is below a lower freezer temperature threshold. 21. The method according to claim 20, comprising the step of: controlling application of heat in said higher temperature compartment independence of the temperature in said low temperature compartment and said lower and higher freezer temperature thresholds. 22. The method according to claim 20, comprising the steps of: applying heat to said higher temperature compartment if the temperature in said higher temperature compartment is below a first specified temperature and stopping application of heat to said higher temperature compartment if the temperature in said higher temperature compartment is above a second specified temperature. 23. The method according to claim 20, comprising the step of: stopping application of heat to said higher temperature compartment if the temperature in said lower temperature compartment is below said lower freezer temperature threshold.
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