公开(公告)号：EP1094100A4

公开(公告)日：2002-10-16

申请号：EP00915341

申请日：2000-04-05

Applicant: MATSUSHITA REFRIGERATION

Inventor： KURACHI MASAO ,  NAKAGAWA NOBUHIRO ,  TAKAICHI KENJI ,  SAKAI HISAKAZU ,  NOZUE AKIHIRO

IPC: C09K5/04 ,  F25B9/00 ,  F25B31/00 ,  F25B43/00 ,  C10M103/00 ,  C10M105/02 ,  F25B1/00

CPC classification number: F25B9/006 ,  C09K5/042 ,  C09K2205/132 ,  F25B31/002 ,  F25B43/003 ,  F25B2400/12 ,  F25B2500/222

Abstract: In a refrigerant compression type refrigerating system for use in the field of refrigerating/air conditioning employing a hydrocarbon refrigerant containing an odorant, the concentration of the odorant at the time of refrigerant leakage is kept on a sensible level. The refrigerant composition contains at least one ingredient selected among ethane, propane, cyclopropane, propylene, and isobutane. It contains ammonia in an amount of 1 to 60 wt. %, preferably 1 to 20 wt. %, as an odorant.

公开(公告)号：JP2002245534A

公开(公告)日：2002-08-30

申请号：JP2001039845

申请日：2001-02-16

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAMADA KAZUYUKI ,  ODA MASATAKA ,  NAKAGAWA NOBUHIRO ,  KAMEI MASAHARU ,  MACHIDA KAZUHIKO ,  KUBOTA YOSHITAKA ,  NOJIMA HAJIME ,  YAMAZAKI YOSHIAKI

IPC: G07F9/00 ,  G07F11/28

Abstract: PROBLEM TO BE SOLVED: To reduce time and effort required for charging and replenishing goods. SOLUTION: This automatic vending machine comprises a plurality of goods charging ports 20 provided vertically at the front face of an automatic vending machine body, corresponding to plural stages of goods shelves 10; a plurality of charging passages 30 inclining downward in a depth direction B and leading the goods charged in the lying state from the goods charging ports 20 to the side opposite to the goods carry-out part side; and a bottom support plate 40 provided on the depth direction B side of the goods shelf 10 to guide the goods from the inner side end part of the charging passage 30 to the goods carry-out part 4 while slidingly supporting the bottom part of the goods in the lying state. A pair of rails 30a, 30b are formed as guide means at the charging passage 30 so as to be able to maintain the posture of the goods passing in the charging passage 30. The goods are thereby charged or replenished easily to each goods shelf 10, and the goods charged in the lying state from the goods charging port 20 can be conveyed in the stable posture to the goods shelf 10.

公开(公告)号：JP2002236969A

公开(公告)日：2002-08-23

申请号：JP2001031949

申请日：2001-02-08

Applicant: MATSUSHITA REFRIGERATION

Inventor： MACHIDA KAZUHIKO ,  ODA MASATAKA ,  NAKAGAWA NOBUHIRO ,  KAMEI MASAHARU ,  KUBOTA YOSHITAKA ,  HAMADA KAZUYUKI ,  NOJIMA HAJIME

IPC: G07F9/10 ,  G07F11/00

Abstract: PROBLEM TO BE SOLVED: To provide a vending machine capable of preventing dew condensation on a bucket and providing stable operation at any time. SOLUTION: A heat insulating lower board 9b for preventing air from flowing between a heating chamber and a cooling chamber through a passage of the bucket 9a when the bucket 9a is in a position for waiting for a sale is provided on a lower part of the bucket 9a. Therefore, the bucket 9a waiting for the sale is in a position on the side of the heating chamber, the dew condensation on the bucket 9a, and generation of rust on a mechanism part of the bucket 9a are prevented, and the vending machine which always operates stably can be provided.

公开(公告)号：JP2002222459A

公开(公告)日：2002-08-09

申请号：JP2001018196

申请日：2001-01-26

Applicant: MATSUSHITA REFRIGERATION

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

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

Abstract: PROBLEM TO BE SOLVED: To shorten the time needed for heating by a heating device which quickly heats a body to be heated and to secure the safety by preventing overheated stream from filling the device. SOLUTION: This device is equipped with a holding means 19 which holds the body 10 to be heated, at least one jetting means 18 which jets the overheated stream toward the body 10 to be heated, a supply means which supplies the overheated steam produced by using heat accumulated in a heat accumulating tank 21 to the jetting means 18, and an overheated steam discharging means 37 which discharges the overheated steam in a heating box 17 after the heating. Consequently, the object body 10 can be heated in a short time and the overheated steam is prevented from filling the device to secure the safety.

公开(公告)号：JP2000088388A

公开(公告)日：2000-03-31

申请号：JP25654798

申请日：1998-09-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  MARUMOTO KAZUHIKO ,  KURAMOTO TETSUEI

IPC: F25B13/00

Abstract: PROBLEM TO BE SOLVED: To obtain a multichamber cooler/heater in which provision of heating capacity from an indoor unit under stoppage or thermo-off state is prevented at the time of heating operation while suppressing generation of passing noise of refrigerant. SOLUTION: Indoor side expansion valves 109a, 109b, 109c are fully closed when indoor units 113a, 113b, 113c are under stoppage or thermo-off state. A decision is made whether refrigerant is standing based on the delivery temperature and the temperature difference between the mean refrigerant temperature at outlet of operating indoor units and the refrigerant temperature of indoor units under stoppage or thermo-off state. If refrigerant is standing, the indoor side expansion valves 109a, 109b, 109c are opened by a specified opening for a specified time thus preventing provision of heating capacity from an indoor unit under stoppage or thermo-off state while suppressing generation of passing noise of refrigerant. When refrigerant is standing, heating operation can be sustained by collecting refrigerant.

公开(公告)号：JPH11337234A

公开(公告)日：1999-12-10

申请号：JP14899998

申请日：1998-05-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： MARUMOTO KAZUHIKO ,  NAKAGAWA NOBUHIRO ,  KURAMOTO TETSUEI

IPC: F25B47/02

Abstract: PROBLEM TO BE SOLVED: To improve comfortability by preventing a sucking pressure of a compressor from dropping below an allowable value during the defrosting to shorten the defrosting time while securing the reliability of the compressor. SOLUTION: A frequency computation control means is provided for an operating compressor. During the defrosting operation, if a sucking pressure detected by a sucking pressure sensor 22 is higher than a predetermined sucking pressure value, the operation frequency of a variable speed compressor 1 is computed with a predetermined discharge pressure value as target. If the sucking pressure detected by the absorption pressure sensor 22 is lower than the predetermined sucking pressure value, the operation frequency of the variable speed compressor 1 is computed with the predetermined sucking pressure value as target.

公开(公告)号：JPH0989388A

公开(公告)日：1997-04-04

申请号：JP24904095

申请日：1995-09-27

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  NAKATANI KAZUO ,  NISHIO YASUNORI

IPC: F25B1/00 ,  F25B13/00

Abstract: PROBLEM TO BE SOLVED: To realize excellent distribution of the refrigerant of indoor units by judging the opening of an indoor side expansion valve from the calculation result of a supercooling degree calculating means to calculate the difference between the calculation result of a saturated liquid temperature calculating means and the detected result of a first temperature sensor, and operating the indoor side expansion valve from the output signal. SOLUTION: In the heating operation when the non-azeotrope refrigerant is used, the condensation pressure is calculated with the saturated liquid temperature and the saturated gas temperature as the center temperature of indoor side heat exchangers 8a, 8b. The difference between the saturated liquid temperature calculated from the pressure and the outlet temperature of the indoor side heat exchangers 8a, 8b, i.e., the supercooling degree is calculated and the supercooling degree is compared with the prescribed cooling degree. Indoor side expansion valves 9a, 9b can appropriately be controlled thereby, deterioration of the refrigerant distribution between indoor units can be prevented irrespective of the installation conditions such as the long piping and the difference in height, and the capacity of the indoor unit can appropriately be controlled.

公开(公告)号：JPH08334274A

公开(公告)日：1996-12-17

申请号：JP14230595

申请日：1995-06-09

Applicant: MATSUSHITA ELECTRIC IND CO LTD ,  MATSUSHITA REFRIGERATION

Inventor： NAKATANI KAZUO ,  NAKAGAWA NOBUHIRO ,  NISHIO YASUNORI

IPC: F25B13/00

Abstract: PURPOSE: To provide an air conditioner which can prevent a frosting from generating in the vicinity of an inlet for a refrigerant of an outdoor heat- exchanger at the time of a heating operation for the air conditioner using a non-azeotropy mixed refrigerant. CONSTITUTION: At the time of a heating operation, a refrigerant which has passed an outdoor expansion valve 26 flows into a heat-exchanging unit 23 by the action of a first check valve, and heat-exchanges a refrigerant which has just passed an outdoor heat-exchanger 25. In the meantime, at the time of a cooling operation, the refrigerant which has just passed the outdoor heat- exchanger 25 is directly introduced to the outdoor expansion valve without being introduced to the heat-exchanging unit 23 by the action of a second check valve 28.

公开(公告)号：JPH08178436A

公开(公告)日：1996-07-12

申请号：JP31658294

申请日：1994-12-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  NISHIO YASUNORI

IPC: F25B1/00

Abstract: PURPOSE: To provide a multi-room type cooler/heater in which suitable indoor unit capacity control can be conducted in a cooling operation using non- azeotrope refrigerant. CONSTITUTION: The multi-room type cooler/heater comprises temperature detecting means 18a, 18b for detecting the temperatures of the inlets and outlets of indoor side heat exchangers 7a, 7b, temperature difference calculating means 19a, 19b for calculating the difference of the detected temperatures, indoor side expansion valve opening deciding means 20a, 20b for deciding the openings of indoor side expansion vales 8a, 8b based on the calculated result, and indoor side expansion valve operating means 21a, 21b for operating the valves 8a, 8b based on the outputs of the means 20a, 20b.

公开(公告)号：JPH0566070A

公开(公告)日：1993-03-19

申请号：JP22582791

申请日：1991-09-05

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAGAWA NOBUHIRO ,  MACHIDA KAZUHIKO ,  KURACHI MASAO

IPC: F24F11/02 ,  F25B1/00 ,  F25B13/00

Abstract: PURPOSE:To enable an apparatus to keep operating normally and to keep its cooling capacity from declining below the lowest allowable limit by providing a bypass detouring a first auxiliary heat exchanger, a valve in the bypass detouring the first auxiliary heat exchanger, pressure detective means, a pressure judging means, a valve control value deciding means, and a valve driving means. CONSTITUTION:The pressure on the low pressure side and the pressure on the high pressure side both in a refrigerant cycle 19 on the side of heat source, detected by pressure detective means, 18a, 18b, are compared with prescribed values of the pressures by the use of a pressure judging means 21. On the basis of the results of the comparison a valve control value deciding means 22, in order to maintain the pressure on the low pressure side and that on the high-pressure side both within the appropriate ranges, decides the value to be applied to the control of a valve 17 in a bypass detouring a first auxiliary heat exchanger. A value driving means 23 sends a pulse number corresponding to the value of the control to the valve 17 in the bypass detouring the first auxiliary heat exchanger and, by so actuating the valve 17, controls the refrigerant flowing into the bypass 15 detouring the first auxiliary heat exchanger to make the flow-rate appropriate. This method enables the apparatus to keep operating normally and keeps its cooling capacity from declining below the lowest allowable limit.