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1. 发明专利

JPH0611232A COLD ACCUMULATION TYPE REFRIGERATOR 失效
公开(公告)号：JPH0611232A
公开(公告)日：1994-01-21
申请号：JP16791392
申请日：1992-06-25
申请人： HITACHI LTD , KYUSHU ELECTRIC POWER
发明人： SHIBATA KOICHI , HARA TOSHIJI , SHIBAYAMA MASAYUKI , RIKIHISA KATSUTOSHI , YAGAWA MASATO
IPC分类号： F25D16/00
摘要： PURPOSE:To enable accumulating of cold in a cold accumulator and chilling through accumulated cold energy by means of a conventional refrigeration cycle. CONSTITUTION:A cold accumulator 6 is connected in series to an evaporator 7 in refrigerating cycle, and a bypass passage 13 is provided to bypass the cold accumulator 6. A refrigerant circulation drive device 10 is provided such that the evaporator 7 and the cold accumulator 6 constitute refrigerating cycle. During a normal chilling operation, a room fan 8 is operated and the bypass passage 13 is opened to establish a conventional refrigerating cycle, thereby causing the evaporator 7 to perform chilling in the room. During accumulation of cold by means of the cold accumulator 6, the bypass passage 13 is closed and a liquid refrigerant of low temperature is supplied to the cold accumulator 6 with the room fan 15 not operated. When chilling is effected by accumulated cold energy stored in the cold accumulator 6, the bypass passage 13 is closed and the refrigerant circulation drive device 10 is actuated to establish a refrigerant circulating cycle, thus supplying to the evaporator 7 a liquid refrigerant which is cooled by accumulated cold energy.

2. 发明专利

JPH05157403A CONDENSER FOR REFRIGERATOR AND ITS MANUFACTURE 失效
公开(公告)号：JPH05157403A
公开(公告)日：1993-06-22
申请号：JP32465291
申请日：1991-12-09
申请人： HITACHI LTD
发明人： HAYASHI MASAKATSU , SATO SHIGEKI , HARA TOSHIJI , SHIBAYAMA MASAYUKI
IPC分类号： B23K1/00 , F25B39/04 , F25D19/00
摘要： PURPOSE:To improve the performance of a condenser and reduce the electric power consumption in a refrigerator by removing the thermal resistance between the pipe and outer plate that is a problem with present refrigerators and raising the average temperature of the surfaces of the outer plate to near the temperature of the refrigerant as far as possible in order to promote the natural convection of the air around the outer plate. CONSTITUTION:The subject condenser is a heat exchanger that is formed by bonding by soldering, etc., an outer plate 1 and black plate 2 on which recesses and projections are worked with a pipe 4. Further, a material of an excellent heat conductivity is used for the back plate 2 in order to improve the heat conduction in the enlarged heat transfer face section 5. Accordingly, the thermal resistance between the refrigerant and air becomes small and the heat conduction in the enlarged heat transfer face section 5 is improved as well so that natural convection of the air is promoted, and the whole outer plate works more effectively as the heat transfer face of the heat exchanger, and the performance of the condenser is improved. It is, therefore, possible to raise the cooling capability of the refrigerator and reduce the consumed electric power.

3. 发明专利

JPH04370387A REFRIGERATOR 失效
公开(公告)号：JPH04370387A
公开(公告)日：1992-12-22
申请号：JP14372691
申请日：1991-06-17
申请人： HITACHI LTD
发明人： ICHIMOTO KAZUHISA , KOSOKABE HIROKATSU , HATAKE HIROAKI , HARA TOSHIJI , OOKI MINORU
IPC分类号： F04C23/00 , F04C28/02 , F04C28/08 , F04C29/00 , F04C29/06 , F25B31/00 , F25D19/00
摘要： PURPOSE:To reduce noise and vibration, generated from a refrigerator in the case of building a compressor in the refrigerator, by reducing noise and vibration of the rotary compressor. CONSTITUTION:In a refrigerator provided with a refrigerator main unit, machine room formed in a back surface lower part of this refrigerator main unit and a compressor mounted into this machine room, the above-mentioned compressor is a rotary compressor, provided with an electric motor part and a compressing mechanism part formed of two compressing elements in a closed vessel, to alternately compress refrigerant gas by the above-mentioned compressing elements by rotating the above-mention electric motor part and also operating this rotary compressor at a low speed with a frequency lower than a power supply frequency 5OHz.

4. 发明专利

JPH04347480A FREEZING REFRIGERATOR 失效
公开(公告)号：JPH04347480A
公开(公告)日：1992-12-02
申请号：JP11990491
申请日：1991-05-24
申请人： HITACHI LTD
发明人： USUI KENJI , HARA TOSHIJI , SHIBAYAMA MASAYUKI
IPC分类号： F25D17/08 , F25D21/04 , F25D21/14
摘要： PURPOSE:To reduce the amount of frost adhered on a cooler remarkably by a method wherein a joining passage for mixing air returning from a freezing chamber with air returning from a refrigerating chamber before arriving at a cooler is provided while moisture in the returning air after mixing is converted into the crystals of ice or the grains of frost. CONSTITUTION:Air 14, returning from a freezing chamber 2 and provided with cryogenic temperature beclow a freezing point, is joined with air 15, returning from a refrigerating chamber 3 and provided with a temperature lower than a freezing point, at a joining passage 8. The crystals of ice or the grains of frost 16 are generated by cooling moisture mostly contained in the air 15 having a temperature lower than a freezing point and are advanced along the flow of the air to the downstream while the flow of them is changed by a piezo-electric fan 9 immediately before a dehumidifying unit 11, then, the crystals of ice or the grains of frost 16 flow into the bottom part of the dehumidifying unit 11. Accordingly, the crystals of ice or the grains of frost 16 are separated by an inertia force generated when the flow of air is curved toward a cooler 4 at the upper part of the flow passage and are dropped into the dehumidifying unit 11, then, are discharged out of a frost discharging unit 12. The air, from which the crystals of ice or the grains of frost 16 are removed, has a sufficiently low humidity and, therefore, frost 17 is hardly generated even when the air flows into the cooler 4.

5. 发明专利

JPH0498075A COLD AIR FORCED CIRCULATION TYPE REFRIGERATOR 失效
公开(公告)号：JPH0498075A
公开(公告)日：1992-03-30
申请号：JP21167490
申请日：1990-08-13
申请人： HITACHI LTD
发明人： NAKAMURA HIROO , HAYASHI MASAKATSU , IWATA HIROSHI , HARA TOSHIJI , SHIBAYAMA MASAYUKI , SUWA EIJI , FUJIMOTO RYOICHI , KENMORI YOSHIHIKO
IPC分类号： F25D17/06 , F25D11/02 , F25D17/08
摘要： PURPOSE:To shorten the quick refrigerating time of a quick refrigerating load remarkably by a method wherein cold air, produced by a cooler, is circulated forcibly by a whole body ventilating fan while a quick cooling fan, for blosting the cold air against the quick refrigerating load or a quick cooling load, is provided at the downstream side of the whole body ventilating fan. CONSTITUTION:Cold air 40, cooled by a cooler 24, is sucked by a quick cooling fan 26 after passing through a whole body ventilating fan 25 and, therefore, is not blown out of cold air outlet ports 17-21 substantially and is blown out of an outlet port 27 substantially. Further, the cold air is branched into the upper side of a quick refrigerating load 14 and an air passage 32 formed between fins 31, 31 neighbored to a finned cooling plate 13 as shown by arrow signs 47, 48 in a diagram to cool the quick refrigerating load 14 from both of upper and lower sides, then, passes through a returning air passage 28a for a refrigerating chamber as shown by an arrow sign 49a and is returned to the cooler 24 as shown by an arrow sign 50. According to this method, a time necessary for the quick refrigerating of the quick refrigerating load or the quick cooling time of the quick cooling load can be shortened remarkably.

6. 发明专利

JPS6291776A METHOD OF CONTRPLLING REFRIGERATOR 失效
公开(公告)号：JPS6291776A
公开(公告)日：1987-04-27
申请号：JP23114385
申请日：1985-10-18
申请人： HITACHI LTD
发明人： KENMORI YOSHIHIKO , SUWA EIJI , KOGURE HIROSHI , HARA TOSHIJI , SASAMOTO NOBUHIKO , TORII TAKUJI
IPC分类号： F25D17/06 , F25D21/08

7. 发明专利

JPS61282763A METHOD OF COOLING REFRIGERATION CYCLE 失效
公开(公告)号：JPS61282763A
公开(公告)日：1986-12-12
申请号：JP12241185
申请日：1985-06-07
申请人： HITACHI LTD
发明人： KOGURE HIROSHI , HARA TOSHIJI , SHIBAYAMA MASAYUKI , SASAMOTO NOBUHIKO , MURATA MITSURU
IPC分类号： F04B39/06 , F04B49/10 , F25B1/00

8. 发明专利

JPS61250478A REFRIGERATOR 失效
公开(公告)号：JPS61250478A
公开(公告)日：1986-11-07
申请号：JP8864785
申请日：1985-04-26
申请人： HITACHI LTD
发明人： MATSUO KAZUYA , TORII TAKUJI , HARA TOSHIJI , KOGURE HIROSHI
IPC分类号： F25D11/02

9. 发明专利

JPS61223472A METHOD OF CONTROLLING REFRIGERATOR 失效
公开(公告)号：JPS61223472A
公开(公告)日：1986-10-04
申请号：JP6055685
申请日：1985-03-27
申请人： HITACHI LTD
发明人： KENMORI YOSHIHIKO , KOGURE HIROSHI , HARA TOSHIJI , SUWA EIJI , SASAMOTO NOBUHIKO , TORII TAKUJI
IPC分类号： F25D21/08

10. 发明专利

JPS61165557A METHOD OF CONTROLLING REFRIGERATION CYCLE 失效
公开(公告)号：JPS61165557A
公开(公告)日：1986-07-26
申请号：JP1193786
申请日：1986-01-24
申请人： HITACHI LTD
发明人： KENMORI YOSHIHIKO , KOGURE HIROSHI , HARA TOSHIJI
IPC分类号： F25B1/00

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