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11. 发明专利

JPH05201241A AIR CONDITIONER FOR AUTOMOBILE 失效
公开(公告)号：JPH05201241A
公开(公告)日：1993-08-10
申请号：JP1235892
申请日：1992-01-27
申请人： NIPPON DENSO CO
发明人： ISAJI AKIRA , IRITANI KUNIO , SUZUKI NOBUNAO , TOMITA HIROYUKI
IPC分类号： B60H1/32 , F25B1/00
摘要： PURPOSE:To reduce the power used of a motor-driven compressor by providing a power saving switch in a control panel, and restricting the supply current or power from a battery to the motor-driven compressor when the power saving switch is turned ON. CONSTITUTION:A control unit 307 inputs respective signals from a power saving switch 336 of a control panel 305, a discharge temperature detector 401 for cooling medium of a compressor 201, etc., and outputs control signals to a blower 105, an inverter 306, etc. Furthermore, the control unit 307 judges ON and OFF of the power saving switch 336, judges whether the value of current to the compressor 201 is 8A or more, or not when the power saving switch is turned on, and reduces the frequency of the inverter 306 to reduce the power used when the current value exceeds 8A. The power used of the battery 339 is thus restricted to prevent battery exhaustion, and the life of the battery can be prolonged.

12. 发明专利

JPH04243615A AIR-CONDITIONER FOR AUTOMOBILE 失效
公开(公告)号：JPH04243615A
公开(公告)日：1992-08-31
申请号：JP2533991
申请日：1991-01-26
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： IRITANI KUNIO , ISAJI AKIRA , SUZUKI NOBUNAO , NISHIMURA YOJI
IPC分类号： B60H1/00 , B60H1/22 , B60H3/00
摘要： PURPOSE:To decrease glass-fogging in the compartment as a result of mode change-over, by continuing the air-conditioner operation for a prescribed time period in a condition of compulsively suppressing the passing amount or temperature of a warm-heat source in an indoor heat exchanger when the conditioner operation is changed over from a cool heat source passage mode to a warm heat source passage mode. CONSTITUTION:A blower 9 is provided in a blower unit 2 and an internal or an external air is introduced, via an internal-air/external-air change-over device 5, into a first unit 3 through driving operation of a blower motor 9a. A duct 10 is formed throughout the first unit 3 and a second unit 4 on the downstream side therefrom. An indoor first heat exchanger 11 is disposed within the first unit 3 and an indoor second heat exchanger 12 and electric heaters 13, 14 are disposed within the second unit 4. When the air-conditioner operation has been changed over from a cool heat source passage mode to a warm heat source passage mode, the operation is done for a specified period of time while compulsively suppressing the amount of air passing through the warm heat source in the indoor heat exchangers 11, 12, thereby decreasing glass-fogging in the compartment.

13. 发明专利

JPH04151324A AUTOMOTIVE AIR CONDITIONER 失效
公开(公告)号：JPH04151324A
公开(公告)日：1992-05-25
申请号：JP27484690
申请日：1990-10-12
申请人： NIPPON DENSO CO
发明人： ISAJI AKIRA , IRITANI KUNIO , SUZUKI NOBUNAO
IPC分类号： B60H1/00 , B60H3/00
摘要： PURPOSE:To make dehumidifying operation accompanied by heating and change the speed of a compressor to control variably the amount of circulating flow of refrigerant passing through both heat exchangers by acting a 2nd indoor heat exchanger as a condenser and a 1st indoor heat exchanger as an evaporator. CONSTITUTION:In dehumidifying, a refrigerant from a compressor 201 is flown into an indoor heat exchanger 110 side by a selector valve 204 in the same manner as in heating. Also, a refrigerant circuit 212 is closed by a reversible electromagnetic valve 213. In addition, a dehumidifying refrigerant circuit 214 is opened by an electromagnetic valve 216. Accordingly, a refrigerant of high temperature and pressure discharged from the compressor 201 is flown into the 2nd indoor heat exchanger 110, condensed, expanded adiabatically while passing through a capillary 211 to become fog of low temperature and pressure, and flown into a 1st indoor heat exchanger 109. The refrigerant is then evaporated in the 1st indoor heat exchanger 109 and the gaseous refrigerant is flown from the dehumidifying refrigerant circuit 214 to an accumulator 215 through the electromagnetic valve 216. And, while the main indoor heat exchanger 109 acts as an evaporator to supply air, the 2nd indoor heat exchanger 110 acts as a condenser to heat air.

14. 发明专利

JPH03144248A METHOD OF CONTROLLING COLD AIR BLOWING DIRECTION IN SPOT COOLER 失效
公开(公告)号：JPH03144248A
公开(公告)日：1991-06-19
申请号：JP28121789
申请日：1989-10-27
申请人： NIPPON DENSO CO
发明人： TAMARU SEI , SUZUKI NOBUNAO
IPC分类号： F24F11/02 , F24F13/06
摘要： PURPOSE:To prevent a direction of a cold air blowing port from being turned and to improve a feeling of cooling by a method wherein the turning operation for turning the cold air blowing port with an air blowing port rotation control means is detected and as this operation continues for a predetermined number of times or a predetermined time, the reversing operation of the cold air blowing port is forcedly stopped. CONSTITUTION:A spot cooler is provided with a cold air blowing port 2 for use in blowing cold air rotatably arranged in a main body 1 of the spot cooler, an air blowing port rotating means 7, a person sensing means 3, a sensing direction changing means 7, a sensing direction changing control means 14 and an air blowing port rotating control means 14. A turning operation for turning a direction of the cold air blowing port 2 with the air blowing port rotating control means 14, i.e., a hunting operation is detected and as the operation continues for a predetermined number of times or a predetermined time, the reversing operation of the cold air blowing port 2 is forcedly stopped. With such an arrangement, it is possible to prevent a hunting of an orientation of the cold air blowing port 2 and to improve a feeling of cooling operation.

15. 发明专利

JPH03144247A COLD AIR BLOWING DIRECTION CONTROL DEVICE FOR SPOT COOLER 失效
公开(公告)号：JPH03144247A
公开(公告)日：1991-06-19
申请号：JP28121689
申请日：1989-10-27
申请人： NIPPON DENSO CO
发明人： TAMARU SEI , SUZUKI NOBUNAO
IPC分类号： F24F11/02 , F24F13/06
摘要： PURPOSE:To shorten a sensing time for a person and provide a person who frequently moves with a sufficient feeling of cooling operation by a method wherein a control device is provided with a person sensing means and an air blowing port rotation control means for use in controlling a direction of a cold air blowing port in response to a sensing signal of the person sensing means. CONSTITUTION:An ultrasonic wave is transmitted from a micro-phone (a transmitter) of the first ultrasonic sensor S1 acting as a person sensing means, a person can be detected by the micro-phone (the transmitter) of the first ultrasonic sensor S1 and at the same time the person can be detected by a micro- phone (a transmitter) of the second ultrasonic sensor S2. The two ultrasonic sensors S1 and S2 are rotated together with a cold air blowing duct 3, a direction of a presence of the person is detected by both sensors S1 and S2. As both sensors S1 and S2 detect the person, the cold air blowing duct 3 is stopped at its rotating position and then the cold air is blown. Accordingly, a sensing of a person can be carried out only with one sensing operation in view of its time. With such an arrangement, a person sensing time can be shortened and a sufficient cooling feeling can be given to a person frequently moving.

16. 发明专利

JPH0886529A AIR CONDITIONER 失效
公开(公告)号：JPH0886529A
公开(公告)日：1996-04-02
申请号：JP22538494
申请日：1994-09-20
申请人： NIPPON DENSO CO
发明人： NAGURA HIROYUKI , SUZUKI NOBUNAO
IPC分类号： F25B1/00 , F25B13/00
摘要： PURPOSE: To contrive power saving by utilizing a heat source for small heating capacity operation effectively. CONSTITUTION: Two sets of refrigerating cycles A, B are provided with hot gas bypass passages 7a, 7b, communicating the discharging side of refrigerant compressors 1a, 1b with the inlet side of outdoor heat exchangers 5a, 5b detouring indoor heat exchangers 4a, 4b and pressure reducers 3a, 3b respectively, while small heating capacity operation is effected by opening solenoid valves 12a, 12b provided in the hot gas bypass passages 7a, 7b. The outdoor heat exchangers 5a, 5b are constituted of first outdoor heat exchangers 5a1, 5b1 and second outdoor heat exchangers 5a2, 5b2, which are connected in series, while the first outdoor heat exchanger 5a1 of the refrigerating cycle A is integrated with the second outdoor heat exchanger 5b2 of the refrigerating cycle B and the second outdoor heat exchanger 5a2 of the refrigerating cycle A is integrated with the first outdoor heat exchanger 5b1 of the refrigerating cycle B through common fins respectively.

17. 发明专利

JPH07174414A HEAT PUMP SOLAR HEAT COLLECTING SYSTEM 失效
公开(公告)号：JPH07174414A
公开(公告)日：1995-07-14
申请号：JP6463492
申请日：1992-03-23
申请人： NIPPON DENSO CO
发明人： SUZUKI NOBUNAO , YANAGIDA AKIRA
IPC分类号： F24S90/00 , F24J2/42
摘要： PURPOSE:To reduce a temperature difference between stored heat and fresh air and thereby reduce heat radiation loss by providing a heat pump which transports heat from the side of solar heat collecting means to the side of middle temperature heat storage means and from the side of the middle temperature heat storage means to load side heat exchange means. CONSTITUTION:In heat collection, solar heat collected by solar heat collecting means 1 is transported to the side of a heat collection side heat exchanger 3 by making use of circulation of heat collection water for heat exchange with a refrigerant of a heat pump 5. The heat absorbed by the refrigerant is transported to a heat storage side heat exchanger 8 with the aid of the heat pump 5 for heat exchange with the heat storage water and is stored in heat storage water in a middle temperature heat storage tank 17 at a temperature level limited to be lower. In use time of the heat, thermal energy stored in the middle temperature heat storage tank 17 is absorbed by a refrigerant in the heat storage side heat exchanger 8 and is transported to a load side heat exchanger 14 with use of the heat pump 5 for heat exchange water on the load side. Hereby, a temperature difference with fresh air is reduced with reduced heat radiation loss for improvement of heat efficiency.

18. 发明专利

JPH04306116A AIR CONDITIONER FOR AUTOMOBILE 失效
公开(公告)号：JPH04306116A
公开(公告)日：1992-10-28
申请号：JP7122891
申请日：1991-04-03
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： ISAJI AKIRA , IRITANI KUNIO , SUZUKI NOBUNAO , NISHIMURA YOJI
IPC分类号： B60H1/00
摘要： PURPOSE:To improve air conditioning ability of an air conditioner for automobile, in a simple structure, and to prevent penetration of rain water into car interior using this air conditioner. CONSTITUTION:Air in car interior or in car exterior due to inside/outside switching damper passes a car interior heat exchanger by a blower, and the air is supplied into the car. The air outside of the car passes an exterior heat exchanger 23 by a blower 25 for exterior heat exchanger. The air in the car is supplied to an absorbing side of the exterior heat exchanger 23 by a communicating hole 28 formed on a floor 27. A folded part 29 is arranged on the communicating hole 28, and the air in the car is allowed to pass the absorbing side of the exterior heat exchanger 23, while penetration of rain water out of the car into the car is inhibited.

19. 发明专利

JPH04254212A AUTOMOBILE AIR CONDITIONER 失效
公开(公告)号：JPH04254212A
公开(公告)日：1992-09-09
申请号：JP1403391
申请日：1991-02-05
申请人： NIPPON DENSO CO
发明人： SUZUKI NOBUNAO , ISAJI AKIRA , IRITANI KUNIO
IPC分类号： B60H1/00 , B60H1/22 , B60H3/02
摘要： PURPOSE:To prevent clouding of an automobile window caused when cooling operation is switched to heating operation in a simple constitution with regard to an automobile air conditioner used for an electric automobile and/or the like having no hot water heating source. CONSTITUTION:In an automobile air conditioner, a control device is provided so as to generate signals to require a directional control valve 101 for outside air intake to be switched to the outside air intake side when heating operation is started up, in the case when the first prescribed time has not yet passed after the preceding cooling operation finished, and in the case when the second prescribed time has not yet passed after the first heating operation started after the preceding cooling operation had finished.

20. 发明专利

JPH04252723A AIR CONDITIONER FOR AUTOMOBILE 失效
公开(公告)号：JPH04252723A
公开(公告)日：1992-09-08
申请号：JP874591
申请日：1991-01-28
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： IRITANI KUNIO , ISAJI AKIRA , SUZUKI NOBUNAO , NISHIMURA YOJI
IPC分类号： B60H1/00 , B60H1/32 , F24F13/22
摘要： PURPOSE:To provide an air conditioner for an automobile capable of avoiding clouding of glass following mode switching. CONSTITUTION:Air inside and outside an automobile room is introduced into the automobile room through a duct 7 by means a fan 6. Indoor heat exchangers 8, 9 are arranged in the duct 7, and the coolant flow direction of the indoor heat exchangers 8, 9 is determined by means of an air conditioner switch or a control panel. An air discharging duct 10, another end of which opens outside the automobile room is branched from the duct 7. When switching is made from the cold heat source passing-through mode to the hot heat source passing- through mode by means of an air conditioner switch on the control panel, a dumper 19 is closed and air containing dew condensation of the indoor heat exchangers 8, 9 is discharged from the air discharging duct 10.

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