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公开(公告)号：JPH08136076A
公开(公告)日：1996-05-31
申请号：JP27128394
申请日：1994-11-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , TAKAO MOTOHARU
Abstract: PURPOSE: To operate an optimum refrigerating cycle by suitably holding a pressure reduced amount for the changes of operating conditions and the length of a refrigerant tube for coupling an outdoor unit to an indoor unit. CONSTITUTION: A heat pump type air conditioner comprises a first temperature detector Th1 for detecting the outlet side tube temperature Tp1 of an outdoor pressure reducing capillary tube Exp1 at the time of cooling, a second temperature detector Th2 for detecting the outlet tube temperature Tp2 of an indoor heat exchanger 5, a first differential pressure calculator Cal1 for calculating the refrigerant pressure difference ΔP1 from the temperatures Tp1, Tp2, and a first expansion valve controller Cnt1 for controlling the opening of an indoor expansion valve Exp2 so that the difference ΔP1 falls within a predetermined range A.
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公开(公告)号：JPH0849938A
公开(公告)日：1996-02-20
申请号：JP18228194
申请日：1994-08-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , AOYAMA SHIGEO , MACHIDA KAZUHIKO
Abstract: PURPOSE:To obtain an air-conditioner the compressor of which is highly reliable at the time of a heat storage operation. CONSTITUTION:By providing a heat exchanger 13a for heat storage, a water supply valve VLV1, a drain valve VLV2, a water temperature sensor 18 and a water level detecting device 19 and by controlling the water supply valve VLV1 and the drain valve to open or close so that a water temperature in a heat storage tank STR be a specific value or above in the case when the water temperature in the heat storage tank STR is lower than the specific value in a hot-water heat storage operation, lowering of a condensing pressure of a primary-side cycle is prevented and thereby the operation of a compressor with high reliability can be executed.
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公开(公告)号：JPH0849937A
公开(公告)日：1996-02-20
申请号：JP18228094
申请日：1994-08-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , AOYAMA SHIGEO , MACHIDA KAZUHIKO
Abstract: PURPOSE:To obtain an air-conditioner which takes out effectively the quantity of heat stored in a heat storage tank in a daytime cooling operation. CONSTITUTION:In a regenerative air-conditioner comprising a primary-side refrigerating cycle and a secondary-side refrigerating cycle, a first control device CNT1 which makes a second flow regulating valve RV2 fully open when the quantity of heat stored in a heat storage tank STR becomes a prescribed value or below in a daytime cooling operation and in a heat storage tank operation mode for a relatively small indoor load, and executes the operation in the heat storage tank operation mode until the temperature of water of the heat storage tank becomes a specific value or above, is provided. Even in the case when the quantity of heat stored in the heat storage tank STR decreases, it is possible to take out effectively the quantity of the heat stored and to prevent a shortage of a cooling capacity for the indoor load, according to this constitution.
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公开(公告)号：JPH0828988A
公开(公告)日：1996-02-02
申请号：JP15720294
申请日：1994-07-08
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , AOYAMA SHIGEO , MACHIDA KAZUHIKO , SUZUKI KOZO , SUGITA YOSHIHIDE
IPC: F25B13/00
Abstract: PURPOSE:To provide a heat storage air conditioner in which a high operating efficiency can be attained during a day time cooling operation. CONSTITUTION:A heat storage type air conditioner is comprised a primary refrigeration cycle in which a first expansion valve EXP1 and a primary side heat exchanging part 14a of a refrigerant-to-refrigerant heat exchanger are connected in parallel in respect to a second expansion valve EXP2, a primary side heat exchanging part 113a of a heat storage tank and an opening or closing valve KV and of a secondary refrigeration cycle. There is provided a first control device CNT1 in which an excessive state or a lacked state of an amount of refrigerant is detected in reference to a degree of over-cooling of refrigerant at an inlet of a first expansion valve EXP1 and its holding time during a day- time cooling operation and a primary cycle refrigerant amount is kept properly by the first expansion valve EXP1, the second expansion valve EXP2 and an opening or closing valve KV, resulting in that the primary cycle refrigerant amount during the day-time cooling operation is properly held and its operating efficiency is improved.
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公开(公告)号：JPH0828932A
公开(公告)日：1996-02-02
申请号：JP16121594
申请日：1994-07-13
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , MACHIDA KAZUHIKO , SUZUKI KOZO , SUGITA YOSHIHIDE
Abstract: PURPOSE:To enhance indoor comfortableness at the time of defrosting in winter and to effectively utilize night power in the refrigerating cycle of a thermal storage type air conditioner having a thermal storage tank. CONSTITUTION:A bypass circuit for connecting a refrigerant-to-refrigerant heat exchanger HEX and a thermal storage tank STR in a secondary side refrigerating cycle are connected in series via a bypass valve BV is installed. An outdoor side heat exchanger 4 is defrosted when a thermal storage material 16 in the tank STR is a predetermined temperature or higher. Accordingly, the valve BV is opened, a primary side refrigerating cycle and a secondary side refrigerating cycle are operated. A defrost controller CN for closing the valve BV and operating only the primary cycle in the case of defrosting the exchanger 4 when the material 16 is lower than a predetermined temperature is installed.
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Patent Agency Ranking
公开(公告)号：JPH05346248A
公开(公告)日：1993-12-27
申请号：JP15468692
申请日：1992-06-15
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , SUZUKI KOZO , SUGITA YOSHIHIDE
Abstract: PURPOSE:To provide a heat accumulation type air conditioner of a high efficiency and a high safety by placing alternately heat transmission tubes of a primary side heat exchanging part and those of a secondary side heat exchanging part, which are arranged to form checkers. CONSTITUTION:A heat exchanger in a heat accumulating tank STR is formed of a primary side heat exchanging part comprising primary side heat transmission tubes P1 which are arranged horizontally and a secondary side heat exchanging part comprising secondary side heat transmission tubes P2 which are arranged horizontally. The primary side and the secondary side heat transmission tubes P1 and P2 are arranged alternately to form checkers. Thus, as the primary side heat transmission tubes P1 are placed uniformly in the heat accumulating tank STR, it can be prevented that transmission tubes attached with ice get together substantially at one peace, whereby ice charging efficiency can be improved. On the other hand, during an ice melting operation, by a heat exchange between refrigerant in the secondary side heat transmission tubes P2 and cold water around them, ice around the primary side heat transmission tubes P1 in the vicinity of the secondary side heat transmission tubes P2 can be melted substantially uniformly and very quickly, whereby load responsibility can be improved.
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公开(公告)号：JPH05346247A
公开(公告)日：1993-12-27
申请号：JP15468592
申请日：1992-06-15
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , SUZUKI KOZO , SUGITA YOSHIHIDE
Abstract: PURPOSE:To provide a heat accumulation type air conditioner of a high efficiency and a high safety, by placing some of heat transmission tubes of a secondary side heat exchanging part in the periphery within a heat accumulating structure, in which a primary side heat exchanging part and the secondary side heat exchanging part are placed alternately. CONSTITUTION:In the center of a heat accumulating tank STR, a primary side heat exchanging part which comprises primary side heat transmission tubes P1 arranged horizontally and primary side fins F1 arranged at right angles with the primary side heat transmission tubes P1 and a secondary heat exchanging part which comprises secondary side heat transmission tubes P2 arranged horizontally and secondary side fins F2 arranged at right angles with the secondary side heat transmission tubes P2 are placed alternately with respect to the horizontal direction. In the periphery within a structure wall, some secondary side heat transmission tubes P2 which constitute a part of the secondary side heat exchanging part are placed. By this, ice made in the primary side heat exchanging part is kept apart from an inner surface of the structure wall. As a result, the inner wall of the heat accumulating tank STR is kept from being applied with force and further prevented from breaking down.
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公开(公告)号：JPH05340636A
公开(公告)日：1993-12-21
申请号：JP14535092
申请日：1992-06-05
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , AOYAMA SHIGEO , SUZUKI KOZO , SUGITA YOSHIHIDE
Abstract: PURPOSE:To obtain an air conditioner having no water leakage accident due to direct conveyance of cold and hot water to a load side and a heat reservoir which has a high efficiency and stable heat output in a cycle having an ice storage tank of a heat storage type air conditioner. CONSTITUTION:A heat storage type air conditioner has a primary side cycle communicating with a heat source side and a secondary side cycle communicating with a load side. An ice floatation preventing net 19 is mounted horizontally at a predetermined interval in a depth direction of a heat reservoir STR. Thus, floating of the ice to a water surface at the time of room cooling in the daytime is prevented, a temperature distribution in the reservoir is made uniform, and a stable heat output is performed.
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公开(公告)号：JPH05340632A
公开(公告)日：1993-12-21
申请号：JP14534692
申请日：1992-06-05
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , SUZUKI KOZO , SUGITA YOSHIHIDE
IPC: F25B13/00
Abstract: PURPOSE:To obtain an air conditioner having a reservoir which has a high efficiency and high load follow-up property in a cycle having an ice storage tank of a heat storage type air conditioner. CONSTITUTION:A heat storage type air conditioner has a primary side refrigerating cycle and a secondary side refrigerating cycle connected through a heat reservoir. The reservoir has a primary side heat exchanger having heat transfer tubes P1, P2 and fins F, and a secondary side heat exchanger. The tubes P1 of the first exchanger and the tubes P2 of the second exchanger in the reservoir are inserted into common fins F, the tubes P1 of the primary exchanger in the reservoir are arranged in a regular triangular shape, the tubes P2 of the secondary exchanger are so arranged as to be at a center of the tubes P1 arranged in the regular triangular shape of the primary exchanger.
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公开(公告)号：JP2003139465A
公开(公告)日：2003-05-14
申请号：JP2001332226
申请日：2001-10-30
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI
IPC: F25D23/00 , A23B7/04 , A61L9/00 , A61L9/015 , A61L9/20 , B01D47/06 , B01J19/12 , B01J35/02 , C02F1/32 , C02F1/72
Abstract: PROBLEM TO BE SOLVED: To hold freshness of vegetables, fruits and the like. SOLUTION: An integral structure comprises a refrigeration chamber 22, a water storage tank 25, a cooling coil 26 for holding water in the water storage tank 25 cooled at a given temperature, an atomizer 27 for atomizing the cold water in the water storage tank 25 into air, a fan 34 for circulating the air in the refrigeration chamber 22, an ultraviolet generator 31, and a photocatalyst layer 32 disposed on an ultraviolet radiation surface. Water disinfected by the ultraviolet generator 31 and the photocatalyst layer 32 can be atomized into the air not only to cool, humidify and remove dust in the refrigeration chamber 22 but also to remove and decompose various bacteria, ethylene gas and the like in the air, which can hold freshness of fruits and vegetables 24 in the refrigeration chamber 22.
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