公开(公告)号：JPH11304341A

公开(公告)日：1999-11-05

申请号：JP11467898

申请日：1998-04-24

Applicant: MATSUSHITA REFRIGERATION

Inventor： TANAKA MASAAKI ,  SHIMIZU TAKESHI ,  NISHIMURA KOICHI

IPC: F25D19/00 ,  F25D21/14 ,  F25D23/00

Abstract: PROBLEM TO BE SOLVED: To prevent flood damage to be caused by overflow by downsizing a machine room, and increasing the effective content volume, and accelerating the water evaporation in an evaporating pan, in a refrigerator which is equipped with a fan and the evaporating pan in the machine room. SOLUTION: This refrigerator is equipped with a machine room 3 where a compressor 5, an evaporating pan 6, and a fan 10 are installed, and a dust 2 which communicates with the machine room and is provided with a compressor 11 is installed, and the evaporating pan 6 is installed in the position near the suction side of the fan 10 and downstream of the compressor 11. Hereby, the machine room 3 can be downsized, and the effective content volume of the refrigerator can be increased, and storage property can be raised. Furthermore, the evaporating pan 6 can accelerate the evaporation of water, and can prevent the flood damage to be caused by overflow, thus high reliability can be obtained.

公开(公告)号：JPH11101567A

公开(公告)日：1999-04-13

申请号：JP26320197

申请日：1997-09-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： SHIMIZU TAKESHI ,  TANAKA MASAAKI ,  NISHIMURA KOICHI

IPC: F25D21/14

Abstract: PROBLEM TO BE SOLVED: To reduce the size by providing a connection tube for introducing defrost water, flowing over a main evaporation pan disposed closely to the upper part of a compressor, to an auxiliary evaporation pan disposed at the lower part of refrigerator body. SOLUTION: A main evaporation pan 11 disposed at the upper part of a compressor 5 is a container having open upper surface and defrost water is evaporated by the heat from a compressor and the cooling wind from a fan. An auxiliary evaporation pan 12 disposed at the lower part of a refrigerator body 9 in a suction duct 8 is a container having open upper surface and when the main evaporation pan 11 is filled with water, the defrost water flowing over the main evaporation pan 11 is introduced through a connecting tube 13 and evaporated by the cooling wind flowing through the suction duct 8. The main evaporation pan 11 has a capacity sufficient for storing the defrost water produced under normal operating conditions prevailing at least the majority of a year. Since the height of the main evaporation pan 11 can be decreased, the ineffective inner volume, i.e., the volume of machine room, can be decreased and the effective inner volume of a refrigerator can be increased.

公开(公告)号：JPH11101564A

公开(公告)日：1999-04-13

申请号：JP26319597

申请日：1997-09-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： NISHIMURA KOICHI ,  SHIMIZU TAKESHI ,  TANAKA MASAAKI

IPC: F25D19/00 ,  F25B39/04 ,  F25D11/00

Abstract: PROBLEM TO BE SOLVED: To remove dust and oil component adsorbing the dust while decomposing by providing a condenser having surface coated with an optical catalyst, and a light for irradiating the condenser with light. SOLUTION: A semiconductor other than titanium oxide may be employed as an optical catalyst but titanium oxide is most preferable in view point of non-water solubility, stability, or the like. When cooling air passes through a condenser 9, dust and oil component adsorbing the dust contained in the air adhere to the cooling air suction side of the condenser 9. The optical catalyst reacts on the light emitted from a light 10 to decompose dust adhering to the condenser 9 thus removing dust from the condenser 9. Since the oil component adsorbing the dust is decomposed, dust does not adhere easily to the condenser 9 and the dust which can not be decomposed through catalytic action can be removed easily, if any.

公开(公告)号：JPH10300319A

公开(公告)日：1998-11-13

申请号：JP10562297

申请日：1997-04-23

Applicant: MATSUSHITA REFRIGERATION

Inventor： SHIMIZU TAKESHI ,  FUJIMOTO SHINJI ,  TANAKA MASAAKI ,  NISHIMURA KOICHI

IPC: F25D11/00 ,  F25D21/04 ,  F28D15/02

Abstract: PROBLEM TO BE SOLVED: To prevent invasion of unnecessary heat into a refrigerator by controlling a heating means in response to the output value of an indoor temperature sensor to maintain a partition plate surface temperature of the front surface of a partition wall for partitioning a storage chamber constant so that a dew point temperature vicinity temperature at arbitrary relative humidity calculated according to the output value of an atmospheric temperature sensor becomes constant. SOLUTION: A storage chamber is partitioned into four chambers of a cold storage chamber 30, first deep freezing chamber 31, second deep freezing chamber 32 and vegetable chamber 33, and the surface temperature of the partition plates 10, 11, 12 of the front surfaces of the partitioned partition walls are controlled by a heating means 17. The means 17 is controlled by a control means 18 by sending a signal from an atmospheric temperature sensing means 16 by sensing a temperature in the circumference of the refrigerator by an atmospheric temperature sensor 16 to the means 18, sending the signal of an indoor temperature sensing means 14 to the means 18 by sending the indoor temperature of the chamber 31 by an indoor temperature sensor 13, and the means 18 outputs output signals from the means 14 and 16 to the means 17. Thus, invasion of unnecessary heat into the refrigerator can be prevented.

公开(公告)号：JPH109688A

公开(公告)日：1998-01-16

申请号：JP16406096

申请日：1996-06-25

Applicant: MATSUSHITA REFRIGERATION

Inventor： KINO AKIHIRO ,  SHIMIZU TAKESHI ,  TANAKA MASAAKI

IPC: F25B1/00

Abstract: PROBLEM TO BE SOLVED: To prevent bumping of refrigerant by making a control so that a compressor is stopped after it is started in starting the compressor, and re- started the compressor in a refrigerator using the refrigerant mainly consisting of hydrofluorocarbon. SOLUTION: In a refrigerator in which refrigerant mainly consisting of hydrofluorocarbon and the refrigerating machine oil is used, temperature in the refrigerator is detected by an in-chamber temperature detecting means 10 while a compressor 1 is stopped. When the detected value reaches a prescribed value, the compressor 1 is started by a compressor start control means 12. Decompression in the compressor 1 is started, and the refrigerating machine oil is stirred and mixed together with the refrigerant by a moving part in the compressor 1. Then, the compressor 1 is stopped, and the decompressed condition of the pressure in the compressor 1 is mitigated. Because the compressor 1 is re-started in a condition where the refrigerating machine oil is stirred together with the refrigerant, the refrigerant is gradually started to be vaporized from the surface as the pressure in the compressor 1 is dropped.

公开(公告)号：JPH0914800A

公开(公告)日：1997-01-17

申请号：JP16040195

申请日：1995-06-27

Applicant: MATSUSHITA REFRIGERATION

Inventor： TANAKA MASAAKI ,  KINO AKIHIRO ,  SHIMIZU TAKESHI

IPC: F25B1/00 ,  F25B43/02

Abstract: PURPOSE: To provide a refrigerating system reducing the noise of a header and improving the reliability of a compressor in the system for allowing refrigerating machine oil and refrigerant to two-phase separate in the header. CONSTITUTION: The refrigerating system comprises a compressor 1, a condenser 2, an expansion mechanism 3, an evaporator 4, and a header 5 annularly connected, refrigerant and refrigerating machine coil having no or small mutual solubility with the refrigerant. The header 5 connects above the suction tube 6 of the compressor 1, and inserts the outlet tube 9 of the evaporator 4 and an oil return tube 10 from below. The tube 10 is opened at one end within the header 5, and connected at the other to the suction tube 6 of the compressor 1.

公开(公告)号：JPH08271111A

公开(公告)日：1996-10-18

申请号：JP7168495

申请日：1995-03-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： HYODO AKIRA ,  SHIMIZU TAKESHI ,  TANAKA MASAAKI

IPC: F25D16/00 ,  F25B1/00

Abstract: PURPOSE: To prevent a heat quantity of a heat accumulator in a normal operation until a heat accumulation cooling operation is started from leaking into a refrigerator by a method wherein when the heat accumulating cooling operation is performed, air in the refrigerator chamber is cooled with the heat accumulator, the cooling chamber air is sent to a cooling device through an aeration duct and then a cold air flow within the aeration duct is shut off with an electric damper. CONSTITUTION: Latent heat type heat accumulation material 34 is filled in a cooling device 29 in parallel with or in series with the cooling device 29, and a heat accumulating device 32 having a refrigerant pipe 35 is arranged in a heat exchanging relation with the latent heat type accumulation material 34. Cold air within the heat accumulating device 32 is sent to an aeration duct 57 by a heat accumulating device fan 37, an electric damper 71 is arranged within the aeration duct 57 and then a flow of the cold air within the aeration duct 57 is shut off with the damper 71. With such an arrangement, it is possible to prevent a heat quantity of the heat accumulating device 32 from being leaking by a natural convection until the heat accumulating cooling operation is started, and further it is possible to make a positive reduction of consumption power in a time band where a day-time power consumption becomes its peak value.

公开(公告)号：JPH08247674A

公开(公告)日：1996-09-27

申请号：JP5433395

申请日：1995-03-14

Applicant: MATSUSHITA REFRIGERATION

Inventor： TANAKA MASAAKI ,  SHIMIZU TAKESHI ,  HYODO AKIRA

IPC: F28D20/00

Abstract: PURPOSE: To improve the efficiency of fusion by reducing deviation of fusion of a heat accumulator. CONSTITUTION: A heat accumulator 15 is filled with a heat accumulating material and comprises a heat-exchange surface 20 for freezing being one surface and plane, and a heat-exchange surface 21 for fusion being a back surface and having an uneven surface along which fluid flows. The heat accumulator 15 has a bent part 24 wherein thickness is decreased at one end of the discharge side 23 of fluid and a protrusion part 22 of the uneven surface of the heat- exchange surface 21 for fusion on the discharge side 23 of fluid from the bent part 24 forms a bellows 25. Heat accumulation units 16 each having a cooling device 17 making abutment against the protrusion part 22 of the heat-exchange surface 21 for fusion of the heat accumulator 15 to make plane contact with the heat-exchange surface 20 for freezing to form a laminated structure.

公开(公告)号：JPH08240371A

公开(公告)日：1996-09-17

申请号：JP4701295

申请日：1995-03-07

Applicant: MATSUSHITA REFRIGERATION

Inventor： SHIMIZU TAKESHI ,  TANAKA MASAAKI ,  HYODO AKIRA

IPC: F25D16/00

Abstract: PURPOSE: To provide a refrigerator capable of averaging the demand of electric power by storing electric power at night and shifting it to daytime. CONSTITUTION: There are provided a freezing cycle where there are connected a condenser 8 and a heat storage unit 31 including a heat storage material 32 therein in series or parallel, timing control means 46 for controlling tiding of heat storage operation where heat is stored in the heat storage unit 31 in an arbitrary time zone and heat storage cooling operation where the inside of the refrigerator is cooled with the aid of stored heat, a heat storage unit fan 39 for feeding cold air in the heat storage unit 31, and a ventilation duct 55 for communication of the condenser 8 with the heat storage unit 31.

公开(公告)号：JPH07294084A

公开(公告)日：1995-11-10

申请号：JP8827494

申请日：1994-04-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： TANAKA MASAAKI ,  SHIMIZU TAKESHI ,  HYODO AKIRA

IPC: F25D16/00 ,  F25D3/00

Abstract: PURPOSE:To accelerate freezing of heat storing materials utilizing volume expansion of a heat storage device by uniformizing freezing and melting of the heat storing materials thereby to improve efficiency of the heat storage device, with respect to a heat storage device for use in a refrigerator of the heat storing type utilizing heat storing materials. CONSTITUTION:A heat storing device 15 has a flat front surface 23 and a surface opposite to the front surface 23 has a recesses and protrusions 24. And two devices 15 are brought into abutment with each other so that the recesses and protrusions 24 thereof are oppositely oriented and a cooling plate 17 is in contact with the flat surface 23, thereby forming a cooling unit 18, and a heat exchanger refrigerant tube 19 is widely located over the plate 17 so as to contact the plate 17 in a wide range. The cooling units 18 are stacked one on another so as to hold the tube 19 therebetween.