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公开(公告)号：JPH10311642A
公开(公告)日：1998-11-24
申请号：JP12194597
申请日：1997-05-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： MAEKAWA YUKIHIRO
Abstract: PROBLEM TO BE SOLVED: To save the power of a refrigerator cooling system by detecting condensing temperature or the frequency of a compressor and controlling the rotating speed of an outer fan motor depending on the rotating speed of the compressor. SOLUTION: The rotating speed of a compressor 7 and an outer fan motor 8 is controlled based on the output voltage of a rectifying circuit 10. When condensing temperature detected by a condenser temperature sensor 20 or the frequency of the compressor is not lower than a setting value, the outer fan motor 8 is turned on. When the condensing temperature or the frequency of the compressor is not higher than a setting value, it is not necessary to cool the compressor 7, so that the outer motor fan 8 is not operated even during the operation of the compressor 7. Thus, an unnecessary air supply to the compressor 7 can be eliminated.
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公开(公告)号：JPH05288181A
公开(公告)日：1993-11-02
申请号：JP8355692
申请日：1992-04-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： MATSUI YOSHIAKI , MAEKAWA YUKIHIRO
Abstract: PURPOSE:To feed oil not containing liquefied refrigerant to a shaft part so as to prevent oil film break and the lowering of oil viscosity by forming a liquid refrigerant inlet pipe into double pipe structure, thereby preventing refrigerant from being liquefied on the surface of the inlet pipe. CONSTITUTION:An inlet pipe 24 piercing a closed container 1 and press-fitted into an auxiliary side housing 7 is of double pipe structure formed of an inner pipe 24a and an outer pipe 24b fixed through an air layer. At the starting time, liquid refrigerant condensed on the surface of the inlet pipe 24 is condensed on the inner pipe 24a of the double pipe but is not condensed on the outer pipe 24b because of the insulation due to double structure. The liquid refrigerant is thereby prevented from being liquefied on the surface of the inlet pipe 24 and dripping on oil 4 so as to keep the wear of a shaft 9 from being accelerated by oil film break and the lowering of oil viscosity.
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公开(公告)号：JPH0445382A
公开(公告)日：1992-02-14
申请号：JP15329490
申请日：1990-06-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： KAMIMURA SHUZO , MAEKAWA YUKIHIRO , UEMURA MICHIKO , YAMATO KAZUE , SHIBATA MEGUMI , OHASHI YOSHINORI
IPC: F25D25/00
Abstract: PURPOSE:To enable a case for pulling out only the first drawing container and another case for pulling out the second container concurrently to be selected by a method wherein a drawing type door is provided with an engaging mechanism having an operating member for operating an engaging member selectively engaged with a pulling type engaging receptacle for the second drawing container. CONSTITUTION:An engaging member 17 so keeps by a force of spring 20 that a pulling type engaging receptacle 16 arranged at the second drawing container front surface edge may not be engaged with a claw 18 of the engaging member 17. Accordingly, in the event that a food stored in the first drawing container 11 is to be taken out, a hand is hung only at a knob 10 not contacting with a lever 21 to pull out a drawing door 9, thereby the first drawing container 1 is moved along the first guide rail 14 and then it pulled out toward an operator. In addition, in the event that if the food stored in the second drawing container 12 is taken out, the lever 21 and the knob 10 are held by the hand to cause the second drawing container 12 to be moved along the second guide rail 15, resulting in that the container can be pulled out toward the operator together with the first drawing container 11 and then a double trouble- some operation can be eliminated.
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公开(公告)号：JPH05141382A
公开(公告)日：1993-06-08
申请号：JP30590391
申请日：1991-11-21
Applicant: MATSUSHITA REFRIGERATION
Inventor： MAEKAWA YUKIHIRO
Abstract: PURPOSE:To prevent occurrence of a risk of a leak and/or an electric shock occurring through suppression of an amount of a refrigerant dissolved in freezer oil and lowering of an oil level by a method wherein a heater is arranged below the oil level position of freezer oil of a compresser in a horizontal type rotary compressor. CONSTITUTION:A horizontal type rotary compressor is formed such that a machine part (a compressor part) (b) where a roller-form piston is eccentrically rotatably contained in a cylinder 6 and a motor part (c) by which the machine part is driven are contained in an outer shell (a) sealed with a refrigerant having adverse electric insulating properties and freezer oil, the motor part (c) being in a state to be immersed in a refrigerant. In a so formed compressor, a heater 12 immersed in a refrigerant in the outer shell (a) is provided. When the temperature of hot freezer oil is decreased to a value lower than a given temperature, such as a time when a compressor 1 is brought into a stop and a time when the temperature of the open air is reduced, energization to the heater 12 is carried out to heat freezer oil, an amount of a refrigerant dissolved in freezer oil is reduced, and an oil level is lowered to improve electric insulating properties.
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公开(公告)号：JPH0526557A
公开(公告)日：1993-02-02
申请号：JP17522991
申请日：1991-07-16
Applicant: MATSUSHITA REFRIGERATION
Inventor： ITO ATSUKO , MAEKAWA YUKIHIRO
Abstract: PURPOSE:To provide a vegetable storing refrigerator having a direct cooling type freezing cycle in which a disturbance of refrigerator temperature and a defrosting reliability are improved and a damage of vegetable caused by a dripping of dew is prevented and its storing capability of long period of time is improved. CONSTITUTION:A forced convection blower 13 and a refrigerator temperature accommodation heater 15 are disposed within a direct cooling refrigerator for performing a cooling operation with a cooling pipe 6 closely contacted and fixed to a rear surface of an inner box 3. In the case that a surrounding air temperature is high, the blower 13 is operated when an operation of a compressor 7 is stopped and in turn in the case that the surrounding air temperature is low, the refrigerator temperature accommodation heater 15 is electrically energized.
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Patent Agency Ranking
公开(公告)号：JPH0526556A
公开(公告)日：1993-02-02
申请号：JP17522891
申请日：1991-07-16
Applicant: MATSUSHITA REFRIGERATION
Inventor： ITO ATSUKO , MAEKAWA YUKIHIRO
Abstract: PURPOSE:To provide a vegetable storing refrigerator using a direct cooling freezing cycle by a method wherein a disturbance in refrigerator temperature and a defrosting reliability are improved and a storing capability of long period of time including a prevention of damage of the vegetable caused by dripping of dew is improved. CONSTITUTION:A blower 13 for use in forcedly performing a convection flow is disposed within a main body 1 of a direct cooling type refrigerator in which a food is cooled with a cooling pipe 6 closely contacted with a rear surface of an inner box 3 and then the blower 13 is operated when a compressor 7 is stopped for its operation.
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公开(公告)号：JPH01179879A
公开(公告)日：1989-07-17
申请号：JP162588
申请日：1988-01-07
Applicant: MATSUSHITA REFRIGERATION
Inventor： MAEKAWA YUKIHIRO , OHASHI YOSHINORI
IPC: F25C1/18
Abstract: PURPOSE:To contract a difference between ice making times of respective sections of an ice making pan, by a method wherein a ventilating passage is provided below a cooling plate and a ventilating hole is provided at the central part of the same while a rib is established at the outer periphery of the rear surfaces of central sections of the ice making pan so as to surround the ventilating hole. CONSTITUTION:An ice making device 24 is provided with a ventilating passage 14, provided below a cooling plate 22, a ventilating hole 23, provided at the central part of the cooling plate 22, and a rib 15b, established at the outer periphery of the rear surfaces of central sections 15a of the ice making pan 15 so as to surround the ventilating hole 23. As a result, a portion of cooling air which flows through the ventilating passage 14 flows through the central rear surface space of the ice making pan 15 after passing through the ventilating hole 23 and is stagnated in a division provided by the rib 15b. Accordingly, cooling of only the central sections 15a of the ice making pan 15 is promoted and the increase of the amount of heating of a heating plate 12 at the central part of the same is cancelled, whereby the freezing speed of the central sections 15a is not slowed down specially, a difference between the ice making times of respective sections 15a may be reduced and transparent ice may be produced efficiently.
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公开(公告)号：JPS6259354A
公开(公告)日：1987-03-16
申请号：JP19981685
申请日：1985-09-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： MAEKAWA YUKIHIRO
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公开(公告)号：JPS6186557A
公开(公告)日：1986-05-02
申请号：JP20852884
申请日：1984-10-04
Applicant: Matsushita Refrigeration
Inventor： MAEKAWA YUKIHIRO
IPC: F25D17/08
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公开(公告)号：JPS6146875A
公开(公告)日：1986-03-07
申请号：JP16806184
申请日：1984-08-10
Applicant: Matsushita Refrigeration
Inventor： MAEKAWA YUKIHIRO
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