公开(公告)号：JPH02247428A

公开(公告)日：1990-10-03

申请号：JP6973989

申请日：1989-03-22

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  NODA TOSHINORI ,  KITAYAMA HIROSHI

IPC: F24F1/00 ,  F24F11/02 ,  F24F13/02 ,  F24F13/068

Abstract: PURPOSE:To make a fast setting of interior temperature and improve a heating efficiency by a method wherein an indoor unit is provided with a lower diffuser opened into a lower spacing of a double floor, an upper diffuser opened into a room, a diffuser changing-over means and a blowing air amount distributing means. CONSTITUTION:An indoor unit 25 has an air blower 28 acting as diffuser changing-over means and capable of performing a normal or reversing rotation and a damper 32 acting as an air blowing amount distributing means. In case of starting a heating operation, the damper 32 is driven and an aeration port 37 and communication holes 38 are provided, hot air is blown from the diffusers 34 when the heating operation is started so as to heat a dwelling region 24 from both upper and lower sides. When the temperature reaches a predetermined temperature, a damper 32 is driven, an air passage 33 is closed when the heating operation is started, all the hot air are blown from the aeration port 37 and the communication holes 38 and then a dwelling region 24 is directly heated by hot air from the entire floor surface. During the cooling operation, the air blower 28 may perform a rotation opposite to that of heating operation. In this way, it is possible to heat the indoor area fast, to have a better heating efficiency and to get a uniform indoor temperature distribution with the head being cold and legs being hot.

公开(公告)号：JPH02208423A

公开(公告)日：1990-08-20

申请号：JP2503389

申请日：1989-02-03

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  NODA TOSHINORI ,  KITAYAMA HIROSHI ,  MORITA MITSURU

IPC: F24F1/00 ,  F24F13/02 ,  F24F13/068

Abstract: PURPOSE:To make an ideal distribution of temperature with a cold head and warm feet state within a room by a method wherein an indoor unit is provided with blowing ports opened at a hollow part of a double floor, blowing ports opened into the room, blowing ports changing-over means and the double floor is provided with aeration ports communicating with the room at end portions and communication holes communicating with the room at any optional positions. CONSTITUTION:When a cooling operation is carried out, a fan 18 is rotated normally, air flowed as indicated by a dotted arrow line, passed through a heat exchanger 4 and cooled there is directed upwardly from upper blowing ports 16, strikes against a ceiling, descends by its own weight while expanding downwardly. After the air cools a dwelling area, the air is sucked through an aeration port 23 and a communication hole 24, passes through a hollow part 22 of a double floor 21 and further the air is sucked at a lower blowing port 17. In turn, when a heating operation is carried out, the fan 18 is rotated in a reverse direction, the hot air is blown from the lower blowing port 17 as indicated by a solid line, the air passes through the hollow part 22 and is blown out of an aeration port 23 and the communication hole 24. At this time, the hot air passes while heating the double floor 21 from below it, resulting in that a temperature of the floor 21 is increased and then a room 2 is indirectly heated with a natural convection flow. The hot air passed from the aeration port 23 and the communication hole 24 is sucked into the blowing ports 16.

公开(公告)号：JPH02195126A

公开(公告)日：1990-08-01

申请号：JP1383989

申请日：1989-01-23

Applicant: MATSUSHITA REFRIGERATION

Inventor： KITAYAMA HIROSHI ,  NODA TOSHINORI ,  NAKAGAWA NOBUHIRO ,  MORITA MITSURU

IPC: F24F1/00 ,  F24F13/02 ,  F24F13/068

Abstract: PURPOSE:To make it possible to obtain an ideally comfortable airconditioning performance which can keep the head cool and the feet warm by providing an upper blowoff port and a lower blowoff port, connecting said lower blowoff port with a hollow section in a double floor, and boring an opening which penetrates the double floor and communicates with the hollow section and a room. CONSTITUTION:A upper blowoff port 16 is installed to the upper part of an indoor airconditioner while a lower blowoff port 17 is installed to the lower part. The lower blowoff port 17 is connected with a hollow section 22 in a double floor 21. The double floor 21 is provided with openings 23a, 23b,...23x which communicate with the hollow section 22 and a room 2 which are laid out uniformly over the entire floor. When a fan 18 makes a normal rotation during cooling operation, the air is adapted to flow upward, passing through a heat exchanger 4 so that the cooled air may be discharged upward from the upper blowoff port 16. The fan 18 is designed to make a reverse rotation during heating operation. The hot air is discharged from the lower blowoff port 17, passing through the hollow section 22 in the double 21 so that the hot air may be discharged from the opening sections 23a, 23b,...23x.

公开(公告)号：JPH02166337A

公开(公告)日：1990-06-27

申请号：JP31911988

申请日：1988-12-16

Applicant: MATSUSHITA REFRIGERATION

Inventor： NODA TOSHINORI ,  NAKAGAWA NOBUHIRO

IPC: F24F11/02

Abstract: PURPOSE:To perform an air conditioning in a dwelling area by a method wherein an indoor thermal load is calculated in reference to a set temperature and an air temperature, a vertical temperature distribution is detected by a radiation temperature at a floor within the dwelling area and a temperature near a ceiling and at least one of a blowing angle and a blowing air volume is controlled in response to these outputs. CONSTITUTION:A sucked air temperature set by an air temperature sensing means 19 in a suction grill 10 and a radiation temperature Tr1 under an opened shutter 26 of a radiation shielding changing-over means 25 are detected so as to define it as a floor temperature. Then, the shutter 26 is closed, a radiation temperature Tr2 is detected so as to define it as an air temperature near the ceiling. A thermal load DELTATl is calculated in reference to a sucked air temperature and a set temperature. In case that an absolute temperature value of difference between the sucked air temperature and the set temperature is more than 5 deg.C, angles of louvers 12a and 12b from the ceiling surface are set large and an amount of blown air is set as a string air. In case that DELTATl is lower than a reference thermal load value (DELTATl=5 deg.C), a temperature distribution DELTATa is calculated in reference to the radiation temperatures Tr1 and Tr2 and in turn when DELTATa is larger than the reference temperature distribution, that is, a difference between the floor temperature and the dwelling area temperature is high, an angle of louver is set high and then an amount of blown air is set high.

公开(公告)号：JPH02103332A

公开(公告)日：1990-04-16

申请号：JP25517388

申请日：1988-10-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  NODA TOSHINORI

IPC: F24F11/76

Abstract: PURPOSE:To let a room temperature approach a preset temperature by reducing an air capacity irrespective of a preset air capacity when a thermal load is large in the initial starting time of operation, and when a blow-off air temperature is low during heating operation and high during cooling operation, and increasing said air capacity when the operating conditions are opposite to the above. CONSTITUTION:An attempt is made to set a required room temperature Tset, an required air capacity Qset, then detect a blow-in air temperature Tin, an d a blow-off air temperature Tout by sensors 13 and 50. A thermal load T1 is calculated based on Tin and the preset temperature Tset. When the room temperature is deviated from the preset temperature in the initial starting time of operation where T1 is larger than a preset reference load T1, an attempt must be made to compare Tout with a preset reference blow-off air temperature TWB during heating time or compare it with a reference blow-off air temperature TCB during cooling time. In the case when Tout TCB, an attempt must be made to reduce the air capacity irrespective of the preset air capacity, increase Tout during heating time and reduce the value during cooling time. In the case opposite to the above, the air capacity must be increased. This construction makes it possible to prevent a feeling of cooled air in the initial time of heating and let the room temperature approach the preset temperature quickly.

公开(公告)号：JP2002272604A

公开(公告)日：2002-09-24

申请号：JP2001073748

申请日：2001-03-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： OZAKI HITOSHI ,  NAKAGAWA NOBUHIRO

IPC: F22B1/28 ,  A21B1/22 ,  A21B1/40 ,  A21C13/00 ,  A47J27/04 ,  A47J36/24 ,  F24C1/00

Abstract: PROBLEM TO BE SOLVED: To provide appropriate heating matching the kind of the subject to be heated and the purpose of beating, relating to a heating method and device using superheated steam. SOLUTION: The heating device includes a heating box 12 accommodating the subject to be heated 11, a superheated steam supply means 25 for supplying the superheated steam to the heating box 12, and a superheated steam quantity control means 27 for controlling the amount of superheated steam generated. In accordance with the purpose of heating the subject to be heated 11, the interior of the heating box 12 is held at the most suitable temperature for heating.

公开(公告)号：JP2002222460A

公开(公告)日：2002-08-09

申请号：JP2001018197

申请日：2001-01-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： OZAKI HITOSHI ,  NAKAGAWA NOBUHIRO ,  KAMEI MASAHARU ,  MACHIDA KAZUHIKO

IPC: G07F9/10 ,  F24H7/02 ,  G07F11/70

Abstract: PROBLEM TO BE SOLVED: To heat an object to be heated to a proper temperature regardless of the weight of the object by a heating device which quickly heats the object. SOLUTION: Water supplied to a heat conduction pipe 28 arranged in a heat accumulating tank 26 filled with a heat accumulating material 27 heated by a heat accumulating material heating means 29 becomes overheated steam through heat exchange with the heat accumulating material 27 and passes through an opening/closing valve 25 and is jetted to the object 24 to be heated in the heating box 21 from the jeating means 22, but a heating time determining means 37 determines the time of heating by the overheated steam according to the weight of the object 24 detected by a weight detecting means 35 and the material of the object 24 stored in a storage means 36 and an opening valve control means 38 opens the opening/closing valve 25 for the heating time determined by the heating time determining means 37, so the heating time is automatically adjusted according to the weight of the object, so that the object 24 which differs in weight can be heated to a proper temperature in a short time.

公开(公告)号：JP2001135321A

公开(公告)日：2001-05-18

申请号：JP31065199

申请日：1999-11-01

Applicant: MATSUSHITA REFRIGERATION

Inventor： KURACHI MASAO ,  NAKAGAWA NOBUHIRO ,  NISHIO YASUNORI

IPC: H01M8/00 ,  H01M8/04 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To provide a fuel cell co-generation system that can greatly improve hot water supply efficiency and cooling efficiency. SOLUTION: The fuel cell co-generation system includes a fuel cell 1, a hot water heat tank 2 for accumulating waste heat of the fuel cell 1, a heat exchange equipment 3 for cooling which is operated by electric power output from the fuel cell 1, an ice heat tank 4 for ice heat accumulation owing to cooling heat media supplied from the heat exchange equipment 3, and a hot water tank 5 for accumulating waste heat of the heat exchange equipment 3. A cooling operation is done by cooling heat accumulated in the ice heat tank 4. Hot water is supplied by pre-heating water in the hot water tank 5 then heating such water in the hot water tank 2.

公开(公告)号：JPH11201572A

公开(公告)日：1999-07-30

申请号：JP455398

申请日：1998-01-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  MARUMOTO KAZUHIKO ,  KURAMOTO TETSUEI

IPC: F25B13/00

Abstract: PROBLEM TO BE SOLVED: To prevent heating capacity from coming out of an indoor machine in stoppage or thermostat off condition, and the occurrence of refrigerant passage sound, in the heating operation of a multiroom air conditioner. SOLUTION: In case that indoor machines 114a and 114b are in stop or thermo off condition, expansion valves 110a and 110b on indoor side are fully closed. Then, this air conditioner can prevent heating capacity from coming out of an indoor machine in stop or thermo off condition, and also can prevent the occurrence of refrigerant passage sound, by judging whether refrigerant is collected too much or not, based on the degree of excessive cooling and the discharge temperature of the indoor machines 114a and 114b in stop or thermo off conditions, and opening the expansion valves 110a and 110b to specified aperture for as specified time in the case that the refrigerant are collected to much. Moreover, in case that the refrigerants are collected too much, this can keep the heating operation, performing the recovery of the refrigerants. Moreover, even in case that the degree of excessive cooling ripples, this can raise the accuracy in judgement of too much collection of refrigerants, and perform stable heating operation.

公开(公告)号：JPH10205931A

公开(公告)日：1998-08-04

申请号：JP936497

申请日：1997-01-22

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  KITAYAMA HIROSHI

IPC: F25B43/02

Abstract: PROBLEM TO BE SOLVED: To return oil to a compressor without being affected by the quantity of liquid refrigerant in an accumulator fitted to a suction side of the compressor. SOLUTION: An accumulator is provided with a storage chamber 5 to store the refrigerant, and inlet pipe 6 inserted in an upper part of the storage chamber, an outlet pipe 7 which is inserted from an upper part of the storage chamber 5, and opened at an upper part in the storage chamber 5 passing close to the bottom part in the storage chamber 5, an oil return hole 9 provided on a pipe wall of the outlet pipe 7 located close to the bottom part of the storage chamber 5, and at least one auxiliary oil return hole 10 along the pipe wall on the opening side of the outlet pipe 7 in the vertical direction. The quantity of the oil to be returned to the compressor can be secured not only in the case where the liquid refrigerant is stored in the storage chamber 5 but also in the case where the liquid refrigerant is not stored.