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公开(公告)号：JPS62178895A
公开(公告)日：1987-08-05
申请号：JP2147486
申请日：1986-02-03
Applicant: MATSUSHITA REFRIGERATION , MATSUSHITA ELECTRIC IND CO LTD
Inventor： YONEDA HIROSHI , KIDO OSAO , IKOMA MITSUHIRO , YAMAMOTO YOSHIAKI
Abstract: PURPOSE:To circulate a liquid coolant at the long side portion of a rectangular flowpath having a considerably large aspect ratio thereby to improve the heat transfer performance of the pipe by integrally laminating flat outer wall members on both surfaces of one or a plurality of flat flowpath members each having a plurality of slits provided in such a shape that a coolant flowpath has a substantially rectangular shape and the thickness of the flowpath is large at the lower part of the central portion. CONSTITUTION:A plurality of slits 13 formed by punching using a press are provided in parallel in a flowpath member 12. A plurality of slits 15 of an inverse trapezoidal shape formed by grinding are provided in parallel in a flowpath member 14 at positions corresponding to the slits 13. The coolant flowpath formed by slits 13 and 14 have a rectangular shape having a large aspect ratio, and the lower long side portion has an inclined portion 19 so that the flowpath height of the flowpath becomes larger toward the center. Accordingly, in the flowpath a liquid coolant 20 is guided to the central portion of the flowpath along the inclined portion 19 by the effect of the gravity and circulates while being held. Therefore, the evaporation heat transfer is improved and also the heat transfer performance is remarkably improved.
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公开(公告)号：JPS62112997A
公开(公告)日：1987-05-23
申请号：JP25147485
申请日：1985-11-08
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIDO OSAO , YONEDA HIROSHI
IPC: F28F1/30
Abstract: PURPOSE:To enable a high heat transfer rate on the average to be obtained even in the case of a heat exchanger elongate in the direction of a gas flow, by a construction wherein slit pieces having leading edge parts opposed to a gas flow are provided on the surfaces of fins, and base parts of each of the slit pieces are inclined to the inner side of the slit piece relative to the direction of the gas flow. CONSTITUTION:Heat is exchanged between a gas flow B passing between fins 5 and a heat-transmitting medium flowing in flat pipes 4, through the fins 5 and the pipes 4. A temperature boundary layer of the gas flow B formed on the surface of the fin 5 is split by slit pieces 6, so that the boundary layer is made to be thin. Since a slit part 6b of the slit piece 6 is parallel to the gas flow B, the draft resistance is not extremely increased by the slit pieces 6, and the gas flow B is not extremely biased while being led to the outside of both ends of the slit piece 6. In addition, since the gas flow B passing on the outside of both ends of the slit piece 6 is drawn to the inside of the slit piece 6 by base parts 6a provided at both ends of the slit piece 6, the gas flow passing through the interior of the slit piece 6 is accelerated, and a high heat transfer rate on the average can be obtained.
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公开(公告)号：JPS61165594A
公开(公告)日：1986-07-26
申请号：JP530585
申请日：1985-01-16
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIDO OSAO , YONEDA HIROSHI , TANNO SATOSHI , KOMA HACHIRO , SUGA HIROAKI
IPC: F28F1/32
Abstract: PURPOSE:To increase an effect of the projected surface, damage the interface layer generated at the fin surfaces and provide a quite high thermal conduction by a method wherein a number of twisted pieces are separately arranged at the air flow inlet port ends of the fins and the projected surfaces are arranged in the fin surfaces. CONSTITUTION:A number of twisted pieces 4 arranged at the air flow inlet ends of the small fins 3 are separately arranged and the semi-spherical projections 5 arranged at one surface of the small piece fins 3 are arranged in a zig-zag form. The air flow B is distrubed by the twisted pieces 4 arranged at the as flow inlet port ends of the small piece fins 3 and the interface layer of the air flow B generated at the fin surfaces of downstream side is made thin. Further, the air flow B is substantially disturbed by the semi-circular projection surfaces 5 arranged at one side surface of the small piece fins 3 at the downstream side just after the twisted pieces 4, the interface layer of the air flow B which is made thin by the twisted pieces 4 is damaged even if the height of the seme-circular projected surfaces 5 is relatively low, the pressure loss caused by the semi-circular projection surfaces 5 is not substantially increased and a quite high thermal conduction is obtained between the small piece fins 3 and the air flow B.
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公开(公告)号：JPS60181568A
公开(公告)日：1985-09-17
申请号：JP3645284
申请日：1984-02-27
Applicant: MATSUSHITA REFRIGERATION
Inventor： YONEDA HIROSHI , KIDO OSAO , TANNO SATOSHI , KOMA HACHIROU , KAN HIROAKI
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公开(公告)号：JP2003202183A
公开(公告)日：2003-07-18
申请号：JP2002003093
申请日：2002-01-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANIGUCHI MITSUNORI , KIDO OSAO , UEDA YOSHIHIRO , NISHIBATAKE HIDEO , SATOUCHI TAKAYUKI
Abstract: PROBLEM TO BE SOLVED: To define relation between size of an electrothermal module and size of a refrigerator, and required size of a radiating plate when an outer box is used as a radiating plate for heat exchange without using a radiation fan or a forced cooling fan to make a refrigerating and heating box using the electrothermal module small, light and excellent in portability. SOLUTION: A whole of an outer box is constructed as a radiating plate and is constructed small and light with an electric power source provided. The relation of sizes between the electrothermal module and the outer box as the radiating plate. Consequently, the electronic refrigerating and heating box capable of refrigerating for a long time during carrying is provided. COPYRIGHT: (C)2003,JPO
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Patent Agency Ranking
公开(公告)号：JPH10300378A
公开(公告)日：1998-11-13
申请号：JP11076697
申请日：1997-04-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： MIYAHARA SATOSHI , KIDO OSAO , TANIGUCHI MITSUNORI
IPC: F28F1/32
Abstract: PROBLEM TO BE SOLVED: To increase the heat-exchanging amount which reduces consequent upon the miniaturization of a heat-exchanger, and also, suppress the heating capability reduction clue to the condensation of moisture during winter regarding a heat-exchanger having fin, which is used for air conditioner and refrigerating equipment, and performs the giving/receiving of heat between a refrigerant and a fluid such as air. SOLUTION: A cat and erected part 7 is arranged in such a manner that the cut and erected part's cut surface 7' may become horizontal to an air flowing direction, and also, the height of the cut and erected part 7 is formed into a mountain-shape becoming higher to the center from both ends, and in addition, an opening 8 is provided on the air stream flow-in side end surface 7" of the cut and erected part 7, and thus, the turbulent effect of the air stream is accelerated, and the air side heat transfer coefficient is improved, and the heat exchanging amount can be increased, and at the same time, moisture which is condensed on the cut and erected part 7 is made easier to discharge by the air stream, and a hot air resistance increase and the capability reduction at the time of heating operation of the heat-exchanger can be suppressed.
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公开(公告)号：JPH10300376A
公开(公告)日：1998-11-13
申请号：JP10881597
申请日：1997-04-25
Applicant: MATSUSHITA REFRIGERATION
Inventor： MIYAHARA SATOSHI , KIDO OSAO , TANIGUCHI MITSUNORI
IPC: F28F1/32
Abstract: PROBLEM TO BE SOLVED: To increase the heat-exchanging amount which reduces consequent upon the miniaturization of a heat-exchanger, regarding a heat-exchanger having fin, which is used for an air conditioner or a refrigerating equipment, and performs the giving/receiving of heat between a refrigerant and a fluid, such as air. SOLUTION: A slit-form parallel cut and erected part 7 wherein the cut surface 7' becomes in parallel with an air flowing direction, and the height forms a mountain-shape becoming higher to the center from both ends, and a vertical cut and erected part 8 on the air downstream side of the parallel cut and erected part 7, wherein the cut surface becomes vertical to the air flowing direction, are provided, and thus, a turbulent effect of the air stream is accelerated, and at the same time, the speed of the air which passes the vertical cut and erected part 8 is increased, and the air side heat transfer coefficient is improved, and the heat-exchanging amount can be increased.
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公开(公告)号：JPH109711A
公开(公告)日：1998-01-16
申请号：JP16137196
申请日：1996-06-21
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANIGUCHI MITSUNORI , KIDO OSAO , MIYAHARA SATOSHI
Abstract: PROBLEM TO BE SOLVED: To improve the performance of a finned condenser by promoting the heat transfer of heat transfer pipes and lowering pressure loss in the finned condenser for transferring heat between the refrigerant of an air conditioner, a refrigerating device, the device of an automobile or the like and fluid such as air. SOLUTION: Inclined grooves 6 having angles reverse to each other with respect to the axis of a pipe are provided on the inner surfaces of a heat transfer pipe 5a and a heat transfer pipe 5b so as to divide the circumferences of the pipes by an even number not smaller than 4. Straight line grooves 7a and 7b passing through the intersections of the inclined grooves 6 concentrated to the flowing direction of a refrigerant and parallel to the axis of the pipe are provided. The straight line groove 7b of the heat transfer pipe 5b located in the downstream side of a refrigerant circuit formed by connecting the heat transfer pipes together is made larger than the straight line groove 7a of the heat transfer pipe 5a located in the upstream side of the refrigerant circuit. Thus, the inclined grooves 6 promote heat transfer and the straight line grooves 7a and 7b lower pressure loss, so that the performance of a finned condenser can be improved.
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公开(公告)号：JPH08145500A
公开(公告)日：1996-06-07
申请号：JP28335794
申请日：1994-11-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIDO OSAO , TANIGUCHI MITSUNORI
Abstract: PURPOSE: To improve the performance of a heat exchanger for a heat pump air conditioner corresponding to non-azeotrope refrigerant employed recently as the candidate of substitute refrigerant to prevent the ozonosphere destruction in the exchanger for communicating heat between the refrigerant and fluid such as the air used for the conditioner used also for cooling and heating. CONSTITUTION: A four-way valve 4 as a refrigerant circuit switching means is connected to heat transfer tubes 4a, 4b of both the ends of a refrigerant circuit, to switch the circuit, thereby feeding the refrigerant in the tube 4 in the direction opposed to the flow or the air in the average manner at the time of cooling or heating. Thus, when a non-azeotrope refrigerant is used as the refrigerant, the temperature difference between the refrigerant and the air flow can be increased in the average manner in both evaporating and condensing steps, and the decrease of the heat exchange amount due to the use of the azeotrope refrigerant can be prevented.
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公开(公告)号：JPH07318202A
公开(公告)日：1995-12-08
申请号：JP10543294
申请日：1994-05-19
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANIGUCHI MITSUNORI , KIDO OSAO
Abstract: PURPOSE:To prevent the deterioration of heat transfer rate of refrigerant side due to the employment of non-azeotropic refrigerant and obtain the same amount of heat exchange as in the case of employing single constituent refrigerant, in a finned condenser, effecting the delivering and receiving of heat between the refrigerant for an air-conditioning machine, a refrigerating equipment, an automobile equipment or the like and fluid such as air or the like. CONSTITUTION:A refrigerant separater 8, such as a filling tower or the like which is provided with a function to separate non-azeotropic refrigerant into a plurality of non-azeotropic refrigerants having different composite ratios or preferably into a single constituent refrigerant, is provided at the inlet port side of the flow passage 10 of the refrigerant, which is formed by connecting heat transfer tubes 7 mutually, whereby the increase of the amount of heat exchange can be attained compared with the heat exchange of the composition of the non-azeotropic refrigerant as it is.
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