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11. 发明专利

JPH0261453A DUCT TYPE HEAT PUMP 失效
公开(公告)号：JPH0261453A
公开(公告)日：1990-03-01
申请号：JP21061888
申请日：1988-08-26
申请人： TOSHIBA CORP
发明人： KAWAMURA TOSHIAKI , SUMA CHIKAU , MOCHIZUKI MITSUHIRO
IPC分类号： F24F11/02
摘要： PURPOSE:To enhance comfortableness of air-conditioning by reducing the air blow quantity of an indoor blower after lowering the operation frequency of a compressor when the opening degree of dampers reaches a preset minimum opening degree, and by raising the operation frequency of the compressor to a preset value when the temperature of a indoor heat exchanger returns to a predetermined temperature. CONSTITUTION:The number of revolutions of an indoor blower 9 is set variable by a phase angle control and the like, and the air blow quantity thereof is controlled. The opening degree of dampers 8A and 8B is also controlled by an indoor controller 14a. A compressor 13 in an outdoor unit 14b is controlled with respect to the operation frequency by an outdoor controller 14b, and the number of revolutions of an outdoor blower 11 is also changed over to several steps. When the operation frequency of the compressor 13 reaches a specified operation frequency value and a room temperature reaches a preset temperature and also the total opening degree of the dampers 8A and 8B reaches a preset minimum opening degree during a heating operation, a controller 14 once lowers the operation frequency of the compressor by predetermined frequency from the operation frequency value before reducing the air blow quantity of the indoor blower 9, and then operates the indoor blower 9. Thereafter, the controller 14 controls the operation so as to return the operation frequency of the compressor to the operation frequency value.

12. 发明专利

JPH0213747A DUCT TYPE AIRCONDITIONER 失效
公开(公告)号：JPH0213747A
公开(公告)日：1990-01-18
申请号：JP16078488
申请日：1988-06-30
申请人： TOSHIBA CORP
发明人： SUMA CHIKAU , MINO YOSHIHITO , KAWAMURA TOSHIAKI
IPC分类号： F24F11/02
摘要： PURPOSE:To prevent the generation of localized differential temperature in a wide room during cooling/heating operation or the generation of differential temperature in a plurality of rooms per room by controlling blow down from each blow off port separately and switching over a total control made and an individual control mode selectively with a change over switch. CONSTITUTION:A suction temperature sensor 30 to be connected with a terminal control means 20 on a main body side is installed near a connection section with indoor equipment 12 in a suction duct 14. An operation mode change over switch 31 controls respectively a total control made which controls evenly the blow down from blow off ports 16a, 16b and 16c from the detection temperature transmitted from a suction temperature sensor 30 and an individual control mode which controls respectively the opening of dampers 18a, 18b and 18c from the detection temperature transmitted from each room temperature sensor 28a, 28b and 28c, and hence controls separately the blow down from the blow off ports 16a, 16b and 16c.

13. 发明专利

JPS6458953A DUCT TYPE AIR CONDITIONER 失效
公开(公告)号：JPS6458953A
公开(公告)日：1989-03-06
申请号：JP21533187
申请日：1987-08-31
申请人： TOSHIBA CORP
发明人： MIMAKI MAKOTO , UDAGAWA YOSHIHIRO , SUMA CHIKAU , MAEZAWA MITSUNORI , SASAKI MASAHIKO , OISHI MASAO
IPC分类号： F24F11/76
摘要： PURPOSE:To obtain an economical and comfortable air conditioner, by controlling the number of revolution of room fans so that each fan can provide draft at the air rate which cancels deviation in room temperature. CONSTITUTION:A controller 23 is electrically connected to the room fan 13 of an indoor unit 11, a remote controller 25, an outdoor unit 26, and room temperature sensors 27 which are installed in each room A, B, and C, being interposed by an inverter 24. The controller 23 reads the value of room temperature in each room A, B, and C, which are detected by each room-temperature sensor 27, and the set value of room temperature in each room A, B, and C, which are set by the room-temperature setter of a remote controller 25. It calculates the value of deviation of room temperature DELTAT which is the deviation of detected value of each room temperature from the set value of room temperature in each room A, B, and C, and it controls the opening of each automatic damper 18a-18c, based on each deviation value in room temperature DELTAT. Further the controller 23 sets the air flow rate in order to make the total value of deviation DELTAT0 of each deviation value of room temperature DELTATa, DELTATb, and DELTATc zero, and it controls the number of revolution of a room fan 13 so as to feed air at the set air flow rate.

14. 发明专利

JPS6458942A INDOOR MACHINE FOR CENTRAL AIR CONDITIONER 失效
公开(公告)号：JPS6458942A
公开(公告)日：1989-03-06
申请号：JP21546687
申请日：1987-08-31
申请人： TOSHIBA CORP
发明人： SUMA CHIKAU , UDAGAWA YOSHIHIRO , MIMAKI MAKOTO , SASAKI MASAHIKO , MAEZAWA MITSUNORI , OISHI MASAO
IPC分类号： F24F3/044 , F24F3/00
摘要： PURPOSE:To enable execution of comfortable air conditioning according to an indoor state, by a method wherein a damper regulating of the opening of a discharge port is situated in the discharge port, and through regulation of the opening of the damper by means of a control means, an amount of air fed to each room is controlled. CONSTITUTION:Discharge ports 10A and 10B for cold and hot air are formed in the top part and the side part, respectively, of a discharge part 4, ducts 11a and 11b are connected to the discharge ports 10A and 10B, and cold or hot air is fed to each room through the ducts 11a and 11b. A damper 12 to regulate the openings of both discharge ports 10A and 10B is situated in the discharge part 4. The damper 12 distributes cold or hot air from a heat exchange part 3 to the discharge ports 10A and 10B according to the opening of the by control means 13, and detecting values from room temperature detecting sensors 14a and 14b situated to each room are inputted to the control means 13. The opening of the damper 12 is regulated by the control means 13 according to the detecting value and a set temperature, and an amount of cold or hot air distributed to the discharge ports 10A and 10B is controlled thereby.

15. 发明专利

JPH06300396A REFRIGERATION CYCLE EQUIPMENT 失效
公开(公告)号：JPH06300396A
公开(公告)日：1994-10-28
申请号：JP9147893
申请日：1993-04-19
申请人： TOSHIBA CORP
发明人： SUMA CHIKAU
IPC分类号： F25B1/00 , F25B13/00 , F25B49/02
摘要： PURPOSE:To detect reliably a leak of a non-azeotropic mixture refrigerant and to display the leak of the refrigerant or to stop the operation of a refrigeration cycle by detecting a change in the composition ratio of the refrigerant. CONSTITUTION:A refrigeration cycle making a non-azeotropic mixture refrigerant circulate reversibly is constructed by connecting a compressor 2, a four-way valve 3, an indoor-side heat exchanger 5 having an indoor fan 4, an expansion valve 6 being a pressure reducing device and an outdoor-side heat exchanger 8 having an outdoor fan 7 in this sequence sequentially and circularly by a refrigerant piping 9. A discharge piping 9a of the compressor 2 is provided with a discharge temperature sensor 14 detecting a discharge temperature of a mixture refrigerant and a refrigerant concentration sensor 15 detecting the concentration of one constituent in the mixture refrigerant, e.g. a low-boiling refrigerant, in short, the composition ratio thereof. Now, when the mixture refrigerant leaks assumedly, the low-boiling refrigerant leaks much in particular and, therefore, the composition ratio of the low-boiling refrigerant in the mixture refrigerant becomes small. Accordingly, a change in the composition ratio of the mixture refrigerant is detected by the refrigerant concentration sensor 15 and the leak is detected therefrom.

16. 发明专利

JPH06137648A AIR-CONDITIONING MACHINE 失效
公开(公告)号：JPH06137648A
公开(公告)日：1994-05-20
申请号：JP28895292
申请日：1992-10-27
申请人： TOSHIBA CORP
发明人： SUMA CHIKAU
IPC分类号： F24F11/02 , F25B1/00
摘要： PURPOSE:To prevent the over pressure of a high-pressure side surely and increase comfortability. CONSTITUTION:A refrigerating cycle is constituted of a compressor 1, changing the number of rotations of the same in accordance with an operation commanding frequency from an inverter, a four-way valve 2, an outdoor side heat exchanger 4, an expansion valve 5, an indoor side heat exchanger 7 and the like, which are connected sequentially through a refrigerating pipeline 8. When a discharging pressure, detected by a pressure sensor 9 detecting the discharging pressure of the compressor 1, has arrived at a first limit value, the opening degree of the expansion valve 5 is increased. When the discharging pressure has arrived at a second limit value, higher than the first limit value, the operating frequency of the compressor 1 is reduced and, further, when the discharging pressure has arrived at a value higher than a third limit value, higher than the second limit value, the operation of the compressor 1 is stopped by an over-pressure preventing means, provided in the refrigerating cycle.

17. 发明专利

JPH05322221A AIR CONDITIONING SYSTEM 失效
公开(公告)号：JPH05322221A
公开(公告)日：1993-12-07
申请号：JP12918392
申请日：1992-05-22
申请人： TOSHIBA CORP
发明人： SUMA CHIKAU
IPC分类号： F24F5/00
摘要： PURPOSE:To provide an air conditioning system capable of facilitating wiring connection and wiring work. CONSTITUTION:A concentrated controller 36 and outdoor machines 23, 31 are connected with each other through a bus wiring 37 laid outside a house and wirings 38, 39, and a control signal is transmitted to air conditioners 21, 22 through the bus wiring 37 and the wirings 38, 39, which connect the concentrated controller 36 and the air conditioners 21, 22, are not provided on a ceiling back and in a wall and so on where a work taking a beautiful sense in the housing into concideration is difficult, but are laid as described above outside the housing where there is not particularly required a beautiful sense. Thus, even in the case where an air conditioner is additionally provided, the work thereof is simplified and connection of the wiring and wiring work are facilitated.

18. 发明专利

JPH05215429A AIR CONDITIONING APPARATUS 失效
公开(公告)号：JPH05215429A
公开(公告)日：1993-08-24
申请号：JP1799592
申请日：1992-02-04
申请人： TOSHIBA CORP
发明人： UDAGAWA YOSHIHIRO , SUMA CHIKAU
IPC分类号： F25B13/00
摘要： PURPOSE:To reduce a peak load by power saving operation by a method wherein a heat accumulating heat exchanger is connected in parallel to both ends of an indoor heat exchanger through an opening and closing valve and a pump while a second reducer is connected in series to the heat accumulating heat exchanger. CONSTITUTION:A heat accumulating heat exchanger 22 is connected in parallel to both ends of an indoor heat exchanger 15 through an opening and closing valve 23 and a pump 24. Further, a second reducer 21 is connected between a connecting port of the heat accumulating heat exchanger 22, connected to the connecting port side of the indoor heat exchanger 15, and another connecting port, connected to the first reducer 20 of an outdoor heat exchanger 14. Accordingly, required air conditioning capacity is obtained by usual cooling and/or heating operation and radiating cold heat from the heat accumulating heat exchanger upon a peak load while the operation of only cold heat accumulating operation or cold heat accumulating operation can be effected while effecting cooling and/or heating operation by controlling the opening and/or closing of the opening and closing valve 23, the operation and stopping of the pump 24 and the regulation of the opening degree of the second reducer 21, on the other hand, cold heat accumulating operation can be effected while effecting only cold heat accumulating operation or effecting cooling and/or heating operation upon cold heat accumulation.

19. 发明专利

JPH05149604A AIR CONDITIONER 失效
公开(公告)号：JPH05149604A
公开(公告)日：1993-06-15
申请号：JP31097891
申请日：1991-11-26
申请人： TOSHIBA CORP
发明人： SUMA CHIKAU
IPC分类号： F24F11/02 , F25B1/00
摘要： PURPOSE:To prevent the resonance of a compressor, reduce noises, and attempt the prevention of equipment breakage, etc., in a multi-type, capability variable air conditioner that has a plurality of compressors. CONSTITUTION:The subject air conditioner has a plurality of refrigerating cycles, and one of them is provided with a compressor 1A and the other with a compressor 1B. The compressors 1A and 1B are put together as one group of outdoor machines. A controller 9 is provided which controls the rotational speed of respective compressors 1A and 1B in response to the requirements of indoor machines of respective refrigerating cycles. The controller 9 has a rotational speed difference setting means 13 by which the rotational speeds of the compressors are made to be different by more than a specified value.

20. 发明专利

JPH04244566A AIR CONDITIONER 失效
公开(公告)号：JPH04244566A
公开(公告)日：1992-09-01
申请号：JP857491
申请日：1991-01-28
申请人： TOSHIBA CORP
发明人： SUMA CHIKAU
IPC分类号： F25B13/00 , F25B47/02
摘要： PURPOSE:To improve an operating efficiency by providing means for forcibly conducting a defrosting operation even in other refrigerating cycle if one refrigerating cycle starts a defrosting operation when both the cycles execute room heating operations. CONSTITUTION:Two indoor heat exchangers 12, 22 are provided in a first refrigerating cycle, the residual two indoor heat exchangers 32, 42 are provided in a second refrigerating cycle, and both the cycles are constituted to be able to be independently operated. If one of both the cycles conducts a room cooling operation while the other executes a room heating operation, outdoor heat exchangers 54, 64 have a heat exchanging relation, and hence condensed heat of a room cooling side is used as an evaporator of a room heating side as it is. Accordingly, a room cooling efficiency and a room heating efficiency are improved. If the one cycle starts to conduct a defrosting operation when both the cycles execute a room heating operation, the other cycle is forcibly defrosted.

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