公开(公告)号：JP2002222461A

公开(公告)日：2002-08-09

申请号：JP2001018198

申请日：2001-01-26

Applicant: MATSUSHITA REFRIGERATION

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

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

Abstract: PROBLEM TO BE SOLVED: To shorten the time needed for the heating of a heating device which quickly heats an object to be heated. SOLUTION: This device is equipped with a holding means 19 which holds the object 10 to be heated, at least one jetting means 18 which jets overheated stream toward the object 10, and a supply means 32 which supplies the overheated steam produced by using heat accumulated in a heat accumulating tank 21 to the jetting means 18, so that the object 10 can be heated in a short time.

公开(公告)号：JP2000088361A

公开(公告)日：2000-03-31

申请号：JP26116398

申请日：1998-09-16

Applicant: MATSUSHITA REFRIGERATION

Inventor： KURAMOTO TETSUEI ,  NAKAGAWA NOBUHIRO ,  MARUMOTO KAZUHIKO

IPC: F25B1/00

Abstract: PROBLEM TO BE SOLVED: To prevent decrease in flow rate or the clogging of a gas bypass capillary in an air conditioner. SOLUTION: An air conditioner is provided with an electric heater 11 for connecting the outlet of an oil separator 2 to the inlet of an accumulator 8 through a gas bypass opening and closing valve 9 and a gas bypass capillary 10 to heat the outlet part or all the part of the gas bypass capillary 10. Thus, the deposition and accumulation of impurities in the outlet part of the gas bypass capillary 10 are suppressed and decrease in flow rate or the clogging of the gas bypass capillary 10 can be prevented to improve the reliability of a system.

公开(公告)号：JP2000018777A

公开(公告)日：2000-01-18

申请号：JP17688598

申请日：1998-06-24

Applicant: MATSUSHITA REFRIGERATION

Inventor： MARUMOTO KAZUHIKO ,  NAKAGAWA NOBUHIRO ,  KURAMOTO TETSUEI

IPC: F25B47/02

Abstract: PROBLEM TO BE SOLVED: To obtain a cooler/heater for long piping system in which smooth operation of a compressor and reliability of the cooler/heater are ensured by ensuring the quantity of oil in the compressor at the time of defrost during heating operation. SOLUTION: This cooler/heater comprises a sensor 18 for detecting the degree of superheat at the delivery of a compressor 1, means 19 for detecting the degree of superheat receiving a signal from the sensor 18, and a compressor frequency control means 23 for increasing the operating frequency of the compressor 1 when the degree of superheat detected by the means 19 is lower than a set value otherwise decreasing the operating frequency depending on the difference between a degree of superheat detected by the means 19 and a preset value. The compressor can be operated smoothly by controlling the operation of the compressor with an appropriate degree of superheat at the delivery while ensuring the quantity of oil in the compressor 1 during defrost and the reliability of a cooler/heater can be ensured.

公开(公告)号：JPH11333238A

公开(公告)日：1999-12-07

申请号：JP14900098

申请日：1998-05-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： WAKITA KATSUYA ,  HIROTA MASANORI ,  NAKAGAWA NOBUHIRO

IPC: E04B1/70 ,  B01D53/26 ,  B01J20/18 ,  E04C2/20

Abstract: PROBLEM TO BE SOLVED: To provide a functional panel with humidity control function which can control the suction and drain of moisture by making water molecules passing through a porous body to be held or absorbed temporarily by a water- absorbing polymer layer or a water-absorbing rubber layer and letting loose the moisture through a porous body layer due to a thermal load by a heating element. SOLUTION: A porous body 2 for securing the structural strength of a functional panel and as a passage for the atmosphere and water molecules between a water-absorbing polymer material 1 or a water-absorbing rubber material 1 which absorbs moisture in the atmosphere and, at the same time, again lets loose the moisture by a thermal load to be applied by a heating element, is arranged on the upper face of the material 1. In this case, the water-absorbing polymer material 1 is made to contain either of cellulose, polyvinyl alcohol, polyacrylamide or polyoxyethylene. Further, a ceramic, a porous glass or the like is used as the porous body 2. Consequently, it is possible to absorb and again let loose the atmospheric moisture and artificially adjust the relative humidity of a room space so that it rises or drops.

公开(公告)号：JPH1114201A

公开(公告)日：1999-01-22

申请号：JP16398497

申请日：1997-06-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  MARUMOTO KAZUHIKO ,  KURAMOTO TETSUEI

IPC: F25B43/02

Abstract: PROBLEM TO BE SOLVED: To return the oil to a compressor without being affected by the quantity of liquid coolant in an accumulator while preventing the liquid from being returned to the compressor. SOLUTION: The accumulator comprises a coolant storage chamber 5, an introduction pipe 6 inserted into the upper part of the storage chamber 5, a delivery pipe 7 inserted from the upper part of the storage chamber 5 to pass through the vicinity of the bottom in the storage chamber 5 and opening to the upper part thereof, an oil return hole 9 made in the delivery pipe 7 located closely to the bottom part of the storage chamber 5, an oil separation disc 11 dividing the storage chamber 5 vertically into two sections, and an auxiliary oil return hole 12 made in the delivery pipe 7 located closely to the upper part of the oil separation disc 11. According to the structure, the quantity of oil being returned to a compressor can be ensured even when a liquid coolant is stored in the storage chamber 5 and the liquid can be prevented from being returned to the compressor.

公开(公告)号：JPH09318177A

公开(公告)日：1997-12-12

申请号：JP13154196

申请日：1996-05-27

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAMEI MASAHARU ,  NAKAGAWA NOBUHIRO ,  KITAYAMA HIROSHI

IPC: F25B1/00 ,  F25B13/00

Abstract: PROBLEM TO BE SOLVED: To prevent the heating capacity from lowering when constant condensing pressure control is done in the heating operation using a nonazeotropic refrigerant in a multiroom type cooling/heating apparatus. SOLUTION: There are provided a bypass 17 comecting a first two way type valve 14, receiver tank 15, and second two way type valve 16, a capillary tube 20 positioned in parallel with the second two way type valve 16, a suction pressure/temperature detective means 23, a degree of superheat-of-suction calculating means 24, a degree of superheat of suction judging means 25 which compares the result of the calculation with a set degree of superheat, a two-way type valve-driving means 26, and a valve-opening means 27 which adjusts the time of opening of the first two way type valve 14 or the second two way type valve 16. As a result, in heating operation using a nonazeotropic refrigerant even the control of the operation in a manner of constant condensing pressure control enables the heating capacity to be secured as desired, a liquid seal in the receiver tank 15 is prevented, and safety can be secured.

公开(公告)号：JPH08296912A

公开(公告)日：1996-11-12

申请号：JP9830495

申请日：1995-04-24

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  NAKATANI KAZUO ,  NISHIO YASUNORI

IPC: F25B1/00 ,  F25B13/00

Abstract: PURPOSE: To provide a multi-chamber heating/cooling air-conditioner which enables proper control of the capacity of an outdoor unit in the cooling operation using a non-azeotropic mixture refrigerant. CONSTITUTION: This apparatus is provided with temperature detection means 19a and 19b to detect temperature at an inlet and an outlet of room side heat exchangers 8a and 8b, saturated pressure calculation means 20a and 20b to calculate a saturated pressure from an inlet temperature, saturated gas temperature calculation means 21a and 21b to calculate the temperature of a saturated gas, degree of superheating calculation means 22a and 22b to calculate the degree of superheating, room side expansion valve opening judging means 23a and 23b to judge the opening of room side expansion valves 9a and 9b based on the degree of superheating and room side expansion valve operation means 24a and 24b to operate the room side expansion valves 9a and 9b.

公开(公告)号：JPH08285393A

公开(公告)日：1996-11-01

申请号：JP9067095

申请日：1995-04-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： NISHIO YASUNORI ,  NAKAGAWA NOBUHIRO ,  NAKATANI KAZUO

IPC: F25B1/00 ,  F25B47/02

Abstract: PURPOSE: To improve a comfortable feeling in an indoor environment by a method wherein a defrosting operation period of an outdoor side heat exchanger is extended during a heating operation in a freezing cycle using non-azeotropic mixed refrigerant. CONSTITUTION: There are provided a temperature sensor 17 for sensing an inlet path temperature of an outdoor side heat exchanger 5; a solenoid valve 18; a heat exchanger device 19 for heat exchanging a high temperature gas pipe with a low temperature wet gas pipe; and a defrosting operation control means 14 for judging a frosted state in the outdoor side heat exchanger 5 and outputting a defrosting operation start time finishing signal.

公开(公告)号：JPH08145482A

公开(公告)日：1996-06-07

申请号：JP28659494

申请日：1994-11-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： NISHIO YASUNORI ,  NAKAGAWA NOBUHIRO

IPC: F25B1/00

Abstract: PURPOSE: To safely continue the operation by preventing the stop of an equipment due to the overcurrent at the time of heating at a low load in a refrigerating cycle using a non-azeotrope refrigerant. CONSTITUTION: The multi-chamber split type heater comprises temperature sensors 10a, 10b for detecting an indoor side heat exchanger outlet temperatures, a discharge pressure sensor 18, a current sensor 19, temperature difference calculating means 26a, 26b for calculating the temperature difference between the saturated gas temperature calculated from the discharge pressure and the temperatures from temperature sensors 10a, 10b, target temperature different calculating means 28a, 28b for calculating target temperature difference based on the output current value of a compressor 1, and indoor side expansion valve operating means 30a, 30b for so controlling to switch indoor side expansion valves 8a, 8b as to arrive at the target temperature difference.

公开(公告)号：JPH0828989A

公开(公告)日：1996-02-02

申请号：JP15720394

申请日：1994-07-08

Applicant: TOKYO ELECTRIC POWER CO ,  MATSUSHITA REFRIGERATION

Inventor： MACHIDA KAZUHIKO ,  AOYAMA SHIGEO ,  NAKAGAWA NOBUHIRO ,  SUZUKI KOZO ,  SUGITA YOSHIHIDE

IPC: F25B13/00

Abstract: PURPOSE:To perform a proper adjustment of an amount of refrigerant in a secondary refrigeration cycle during a normal heating operation by a method wherein a flow rate valve, an indoor fan and a compressor are controlled to be driven in response to each of sensed information of sensing means for sensing each of a heating operation mode, a refrigerant over-heating degree and pressure. CONSTITUTION:In a heat storage type air conditioner comprised of a primary refrigeration cycle and a secondary refrigeration cycle, a heating operation mode not using a heat radiating heat exchanger is detected by an operation mode sensing means 19 of a first control device CN1. A refrigerant over-heating degree and a holding time at an outlet at a secondary auxiliary heat exchanger are detected by a refrigerant over-heating degree sensing means 20. In addition, each of inner pressure differences of the second auxiliary heat exchanger and a thermal rediation heat exchanger is detected by a pressure sensing means 21. Processing is carried out by a first calculating and processing means 22 in such a manner that a second flow rate valve, a plurality of indoor fans and a compressor are driven in response to each of the detected information of each of the sensing means 19 to 21. With such an arrangement as above, an amount of refrigerant in the secondary refrigeration cycle during the normal heating operation is properly adjusted.