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1. 发明专利

JP2001127223A HEAT EXCHANGER 失效
公开(公告)号：JP2001127223A
公开(公告)日：2001-05-11
申请号：JP30505899
申请日：1999-10-27
申请人： MATSUSHITA REFRIGERATION
发明人： GOI YASUSHI , TAIRA TERUHIKO
IPC分类号： H01L23/36 , F25B21/02 , F28F13/12
摘要： PROBLEM TO BE SOLVED: To provide a heat exchanger which is improved in performance by enhancing its boundary layer leading edge effect. SOLUTION: A board 10 is provided on a heat exchange objective part in such a manner where the heat exchange objective part absorbs or releases heat, thin plate-like fins 12 where a flow of air passes through a space 13 between the fins 12 are provided to the board 10 upright, and parts 14 which are cut out and lifted up and provided with openings arranged in front and rear confronting the direction of an air flow are provided to the fin 12. A leading edge distance is elongated through the cut/lift part 14, and an air flow passing between the fins 12 hits the leading edges of the cut/lift parts to get turbulent, by which a heat exchanger of this constitution can be improved in heat, dissipating properties, more enhanced in boundary layer leading edge effect, and improved in heat exchange performance.

2. 发明专利

JPH09229467A HEAT-EXCHANGER 失效
公开(公告)号：JPH09229467A
公开(公告)日：1997-09-05
申请号：JP3772896
申请日：1996-02-26
申请人： MATSUSHITA REFRIGERATION
发明人： TAIRA TERUHIKO
IPC分类号： F24F13/30 , F28D1/047 , F28F9/26
摘要： PROBLEM TO BE SOLVED: To reduce a processing amount for a heat transfer pipe, the size of a device inserted in and secured to a fin, and an equipment cost. SOLUTION: A heat-exchanger 11 comprises L-shaped heat-exchanger cores 11a and 11b. A number of fins 12a and 12b are laminated in front and rear rows and heat transfer pipes 13a and 13b are inserted classified by a row in such a state to cross the fins 12a and 12b at right angles. A header 14 wherein the heat transfer pipe 13a is connected to form a refrigerant flow passage is arranged on the rear row side at one end of the heat-exchanger 11a. On the front row side at the aforesaid end, a plurality of capillary tubes 16 divided from a flow divider are connected to the heat transfer pipe 1a to form the inlet of a refrigerant flow passage. The end part of the heat transfer pipe 13a at the other end of the heat-exchanger core 11a is bent in an L-shaped state and joined with the heat transfer pipe 13b at one end of the heat-exchanger core 11b, and the heat transfer pipes 13a and 13b form a series of flow passage. Since a large heat-exchanger 11 is formed such that small heat-exchangers 11a and 11b are joined together, coping with a situation is effected by a small processing and manufacturing device.

3. 发明专利

JPH06347185A HEAT EXCHANGER 失效
公开(公告)号：JPH06347185A
公开(公告)日：1994-12-20
申请号：JP13588593
申请日：1993-06-07
申请人： MATSUSHITA REFRIGERATION
发明人： NAKAYAMA KOICHI , KASE HIROAKI , TAIRA TERUHIKO , KOGASHIWA NAOYUKI
IPC分类号： F25B39/02 , F28F1/30 , F28F17/00
摘要： PURPOSE:To prevent water from scattering into a room by a method wherein a mesh fin is attached at the leeward end of a corrugated fin so that condensate water gathering on the corrugated fin is absorbed by the mesh fin. CONSTITUTION:Refrigerant evaporates in a flat pipe 21 to cool air passing through a corrugated fin 22, and moisture condenses on the corrugated fin 22. The condensate water is washed away backward from the corrugated fin 22 by air flow and absorbed by a mesh fin 23 attached at the leeward end of the corrugated fin 22. Then, the condensate water flows along the mesh fin 23 and is discharged outside without scattering into a room. Therefore, the draft resistance can be reduced.

4. 发明专利

JPH06254623A MANUFACTURE OF REFRIGERANT SHUNT DEVICE AND REFRIGERANT SHUNT DEVICE 失效
公开(公告)号：JPH06254623A
公开(公告)日：1994-09-13
申请号：JP4643393
申请日：1993-03-08
申请人： MATSUSHITA REFRIGERATION
发明人： TAIRA TERUHIKO
IPC分类号： B21C37/29 , B21D53/06 , F25B41/00
摘要： PURPOSE:To reduce a working man-hour and the number of parts by forming plural connecting tubes projecting on a flat plate, rounding the flat plate, joining both its edges and forming a conical shunt part. CONSTITUTION:The flat plate is deep-drawn at a prescribed pitch to form connecting tubes 13. Then, the nearly trapezoidal flat plate is cut along a cutting line 18 so that a line of connecting tubes 13 are arranged in the center of the flat plate. The flat plate 11a is curved nearly conically and the butted parts 15 are welded to make the shunt part 12. End plats 16, 17 are mounted on both end parts of the shunt part 12. An inflow tube 14 is set to a large diameter end part 17 of the shunt part 12 to make a refrigerant shunt device. Since the flat plate is rounded to form the shunt part 12, a semi-circular tapered inserting member is not required. The refrigerant having a two phase state of gas and liquid can be shunted uniformly, the shunt device can be miniaturized, lightened and manufactured at a low cost.

5. 发明专利

JPH05306852A 失效
公开(公告)号：JPH05306852A
公开(公告)日：1993-11-19
申请号：JP11110392
申请日：1992-04-30
申请人： MATSUSHITA REFRIGERATION
发明人： TAKANO TAKASHI , NAKAYAMA KOICHI , SUGAWARA TAKASHI , KASE HIROAKI , TAIRA TERUHIKO
IPC分类号： F25B39/02 , F28F1/32
摘要： PURPOSE:To provide a heat exchanger having stable heat exchanger performance by preventing clogging due to frosting of the surface of the exchanger. CONSTITUTION:The heat exchanger comprises many fins 12 aligned in parallel at a predetermined intervals to feed air flow A thereamong, and a heat medium tube 13 inserted into the fins 12. Cutouts 14 are formed at all the fins 12 in a direction perpendicular to the direction of the flow A, thereby uniformly frosting the cutouts 14.

6. 发明专利

JPH05223490A HEAT EXCHANGER 失效
公开(公告)号：JPH05223490A
公开(公告)日：1993-08-31
申请号：JP2637992
申请日：1992-02-13
申请人： MATSUSHITA ELECTRIC IND CO LTD , MATSUSHITA REFRIGERATION
发明人： ANDO TOMOAKI , MOGI HITOSHI , NAKAYAMA KOICHI , TAIRA TERUHIKO
IPC分类号： F28F9/22 , F28D1/053 , F28F13/06
摘要： PURPOSE:To distribute fluid uniformly into respective heat transfer tubes 1 and increase an effective heat transfer area, on which refrigerant is evaporated actually, to improve the performance of a heat exchanger. CONSTITUTION:A heat exchanger is constituted of the group 2 of fins, through which air flows, the group 1 of heat transfer tubes, through which refrigerant flows, and a plurality of headers 3a-3e, into which both ends of the group 1 of heat transfer tubes are inserted, while the speed of the refrigerant in the headers 3a-3e is slowed from the upstream side header 3a to the downstream side header 3e gradually and sequentially.

7. 发明专利

JPH05203286A HEAT EXCHANGER 失效
公开(公告)号：JPH05203286A
公开(公告)日：1993-08-10
申请号：JP1096892
申请日：1992-01-24
申请人： MATSUSHITA REFRIGERATION
发明人： KATO KAORU , NAKAYAMA KOICHI , KASE HIROAKI , TAIRA TERUHIKO
IPC分类号： F25B39/02 , F28F1/40 , F28F13/02 , F28F13/12
摘要： PURPOSE:To provide a heat exchanger which is equipped with a flow divider which divides the flow of refrigerant in a two phase state (vapor and liquid) among a plurality of refrigerant circuit and capable of heat exchanging with high efficiency by dividing the refrigerant among the refrigerant circuits equally in terms of a refrigeration cycle of refrigerator or air conditioner. CONSTITUTION:This heat exchanger comprises a cylinder shaped flow divider 12, a cylinder-shaped flow combiner 13, heat exchanger tubes 14 to the flow divider 12 and the low combiner 13 and a large number of fins 15 installed to the heat exchanger tubes. A turbulent flow promoter 18 is installed inside the flow divider 14. Therefore, this heat exchanger comprises the flow divider and the flow combiner which are cylinder-shaped and sealed on both ends, a plurality of heat exchanger tubes welded to the flow divider and the flow combiner virtually at right angles and the fins installed in great numbers. The turbulent flow promoter is installed inside the flow divider as well. The liquid refrigerant can flow out to the flow divider welded to the heat exchanger tubes substantially equally, thereby carrying out a heat exchange performance with a high efficiency.

8. 发明专利

JPH04288461A METHOD OF MAKING REFRIGERANT FLOW DIVIDING DEVICE 失效
公开(公告)号：JPH04288461A
公开(公告)日：1992-10-13
申请号：JP4942391
申请日：1991-03-14
申请人： MATSUSHITA REFRIGERATION
发明人： TAIRA TERUHIKO , NAKAYAMA KOICHI , KAWABATA KIYOSHI , NAKAMORI MICHIARI
IPC分类号： B21C37/28 , B21D53/06 , F25B41/00
摘要： PURPOSE:To provide a refrigerant flow divider such as a header pipe for performing a refrigerant flow dividing action to a plurality of refrigerant circuits of an evaporator or a condensor in a freezing cycle of an air conditioner or a freezer and the like, wherein a flowing pressure loss of refrigerant is reduced, a shape and quality are stabilized, a useless space is not required when a heat exchanger is to be fixed and its manufacturing may easily be carried out. CONSTITUTION:A part of a flat plate 1h of an approximate parallelpiped shape is expanded and molded into an approximate arcular cross section in a longitudinal direction to form an expanded part 1b, a plurality of tubular connection portions 3 are formed on a ridge line, the flat plate 1h is machined into an approximate arcular shape with the connection portions 3 being faced outside, both edges 1s of the flat plate 1h are connected to form a flow branch part 2 so as to make a refrigerant flow divider 1.

9. 发明专利

JPH04240363A HEAT EXCHANGER 失效
公开(公告)号：JPH04240363A
公开(公告)日：1992-08-27
申请号：JP560191
申请日：1991-01-22
申请人： MATSUSHITA REFRIGERATION
发明人： TAIRA TERUHIKO , KAWABATA KIYOSHI , NAKAYAMA KOICHI , KAWAI MASAFUMI , KASE HIROAKI , MANAKA MASAYUKI
IPC分类号： F25B39/00 , F28F9/02
摘要： PURPOSE:To provide a heat exchanger in which refrigerant can be easily uniformly branched to efficiently heat exchange by incorporating a branch unit of a header pipe, etc., for branching the refrigerant to a plurality of refrigerant circuits of an evaporator, a condenser in a refrigerating cycle such as an air conditioner, a refrigerator, etc. CONSTITUTION:An inner tube 18 is inserted partly to a cylindrical branch unit 13 sealed at both ends, a pore 18a is provided at one end of the tube 18 near a sealing end, an opening end 81a opened in a large inner diameter of the unit 13 is provided at the other end, and a fin 15 and heat transfer tubes 14a, 14b are provided.

10. 发明专利

JPH0455664A REFRIGERANT FLOW DIVIDER 失效
公开(公告)号：JPH0455664A
公开(公告)日：1992-02-24
申请号：JP16471990
申请日：1990-06-22
申请人： MATSUSHITA REFRIGERATION
发明人： TAIRA TERUHIKO , NAKAYAMA KOICHI , IDE SHINICHI , MATSUNAGA TAKESHI
IPC分类号： F25B39/00
摘要： PURPOSE:To uniformly divide the flow of a refrigerant and to prevent lowering of heat exchange performance of a heat exchanger serving as a condenser by a method wherein a flow passage on-off valve for intercoupling first and second connection pipes and a small part is provided and the small part being finer than the second connection pipe running between a hollow body 2 and an outflow inflow pipe is located to the first connection pipe. CONSTITUTION:When a heat exchanger 15B is used as a condenser, a refrigerant flows in a reverse direction to that during vaporization, and a flow passage on-off valve 5 is in an opening state. In this case, since the first connection pipe 3 has a small part 3n being finer than a second connection pipe 4, a pressure loss of a refrigerant R at the small part 3n is high. When the refrigerant R flows out from a hollow body 2, it flows out through a second connection pipe 4, having a low pressure loss, to an outflow inflow pipe 3i. The second connection pipe 4 is located to the lower end part of the hollow body 2. At a heat exchanger 15B, the condensed refrigerant R is caused to smoothly flow out without residing in heat transfer pipes 6 and the hollow body 2. By changing a flow route for a refrigerant by opening and closing a flow passage on-off valve 5 according to a condensing period and a vaporizing period, a refrigerant is uniformly divided, and heat exchange performance of the heat exchanger 15B can be increased to a maximum.

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