公开(公告)号：JP2003240489A

公开(公告)日：2003-08-27

申请号：JP2002039515

申请日：2002-02-18

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKANO TAKASHI

IPC: F28F1/12 ,  C23C28/00 ,  F25B39/02 ,  F28F19/02

Abstract: PROBLEM TO BE SOLVED: To prevent an offensive odor from being generated in an operation of an actual air-conditioner by generating an adsorbed molecule or organic substance of an offensive smell as an odor, from titanium oxide itself, even under the condition that it is not irradiated with light such as an ultra-violet ray, in a fin and tube type heat-exchanger used for a heat pump air-conditioner or the like. SOLUTION: A compounding ratio of a binder to the titanium oxide in a titanium oxide layer 13 formed using the binder on a fin 12 surface for constituting the fin and tube type heat-exchanger is brought into a range from 60:40 to 50:50 by weight ratio of solid contents thereof so as to optimize the compounding ratio of the binder to the titanium oxide, and the offensive odor is prevented from being generated in the operation of the actual air-conditioner by generating the adsorbed molecule or organic substance of the offensive smell as the odor, from the titanium oxide itself, even under the condition where not irradiated with light such as the ultra-violet ray. COPYRIGHT: (C)2003,JPO

公开(公告)号：JPH05306852A

公开(公告)日：1993-11-19

申请号：JP11110392

申请日：1992-04-30

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKANO TAKASHI ,  NAKAYAMA KOICHI ,  SUGAWARA TAKASHI ,  KASE HIROAKI ,  TAIRA TERUHIKO

IPC: F25B39/02 ,  F28F1/32

Abstract: 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.

公开(公告)号：JPH04316990A

公开(公告)日：1992-11-09

申请号：JP8509991

申请日：1991-04-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： FUJINO KENJI ,  TAKANO TAKASHI

IPC: C22C21/00 ,  B32B15/08 ,  F28F1/12 ,  F28F1/32

Abstract: PURPOSE:To elongate the life of a mold upon forming a fin, improve the washability for degreasing and permit the restriction of the smell of oil, smell of absorption and the smell of a raw material when the fin is used for the actual machine for air conditioning. CONSTITUTION:In a fin material for a heat exchanger, a water-wetting film 4, consisting of an organic high polymer, is formed on a hydrophilic film 3, treated by silicate, so that the thickness of the coating film becomes smaller than 0.5mum.

公开(公告)号：JPH03251687A

公开(公告)日：1991-11-11

申请号：JP4762490

申请日：1990-02-28

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKANO TAKASHI ,  FUJINO KENJI ,  SUGAWARA TAKASHI ,  SUGA HIROAKI

IPC: F28D9/00

Abstract: PURPOSE:To distribute fluid uniformly into a header and grooved parts and improve heat exchanging performance by a method wherein a plurality of sheets of heat exchanging plates, provided with an end plate, a plurality of grooves, a header and the other header, separated from the header, are laminated while an inlet pipe and an outlet pipe as well as the inlet and outlet sections of the end plate are flattened. CONSTITUTION:A plurality of sheets of heat exchanging sheets 21, on which grooves are worked, are laminated and end plates 22 are superposed on both ends of the laminated heat exchanging sheets while the heat exchanging sheets 21 are brought into close contact with the end plates 22 so that fluid 23, 24 do not leak from grooves 27, 28 and an inlet tube 26, whose section communicated with a header 25 is flattened, is attached. The heat exchanging sheets 21 are laminated by turning them by 90 deg. one by one whereby each sheet is constituted so that different fluid 23, 24 flow therethrough. Accordingly, grooves 27, 28 become heat exchanging units and heat is exchanged between fluids 23, 24 flowing thorugh an upper plate and a lower plate. In this case, one part of the inlet tube is flattened to disperse the fluid into the header 25 and distribute it uniformly into the grooves 27, 28 whereby heat exchanging performance can be improved.

公开(公告)号：JP2001330395A

公开(公告)日：2001-11-30

申请号：JP2000154215

申请日：2000-05-25

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKANO TAKASHI

IPC: F28F1/32 ,  F25B39/04 ,  F28D1/047 ,  F28F19/04

Abstract: PROBLEM TO BE SOLVED: To make oil hardly stick to the surface of a fin and also to prevent lowering of the efficiency of a condenser in the actual operation, in a fin and tube type heat exchanger for the condenser in a refrigerating apparatus provided in a refrigerator for commercial use, a vending machine or the like. SOLUTION: A film 13 treated for oil repellency is provided on the surface of the fin 12 of the fin and tube type heat exchanger 11. Consequently, the oil repellency of the surface 12 of the fin is so improved as to make oil hardly stick thereto and also the sticking can be reduced even in an environment wherein the sticking of the oil or the like often occurs.

公开(公告)号：JPH10220978A

公开(公告)日：1998-08-21

申请号：JP2492897

申请日：1997-02-07

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKANO TAKASHI ,  KATAGIRI OSAMU

IPC: F28F1/32

Abstract: PROBLEM TO BE SOLVED: To maintain hydrophilic property persistence by oxidizing and decomposing hydrophobic molecules of organic material adhered to a fin surface by a photocatalytic action of titanium oxide by providing a fin containing the titanium oxide at least on one surface of the fin, and providing a film containing hydrophilic surface treating agent on the other surface. SOLUTION: The fin 12 is executed on a lower surface of the surface thereof with a corrosion resistant film 3, and on an upper layer with a film 13 containing titanium oxide. That is, the fins 12 for constituting the fin and tube type heat exchanger are executed on the lower layer of the surface thereof with the film 3 and on the upper layer with the film 13 containing the titanium oxide. Thus, hydrophobic molecules of the organic material adhered to the surface of the fin 12 is oxidized and decomposed by photocatalytic action of the titanium. Thus, hydrophilic persistence can not only be maintained, but also superhydrophilic sate can be maintained. Further, since offensive component or organic material is oxidized and decomposed, breeding of mold is suppressed, and generation of offensive odor can be prevented.

公开(公告)号：JPH09141353A

公开(公告)日：1997-06-03

申请号：JP29950295

申请日：1995-11-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKANO TAKASHI ,  KAN HIROAKI

IPC: F28F1/32 ,  B21D39/20

Abstract: PROBLEM TO BE SOLVED: To simplify the process, and to suppress dispersion in the width of corner beveling and to make the width uniform by using a jig which a provided with a fin end part in parallel to the expanded tube of a tube so that the corner of the fin end part is beveled. SOLUTION: The end part of the fin 3 is beveled associatively with the insertion of a mandrel 12 expanding the tube 11 at the tube expansion machining of the manufacture process of the heat exchanger 1. This is carried out by using the jig 113 provided to a fixation plate where the mandrel 12 is fixed. Therefore, the need for the beveling process for the corner 4 of the end part of the fin as the final process of the manufacture is eliminated. Further, the corner 4 can be beveled automatically, so variance in the beveling width of the corner 4 can be suppressed and made uniform, thus the heat exchanger 1 is easily stored on a drain pan.

公开(公告)号：JPH05306854A

公开(公告)日：1993-11-19

申请号：JP11111692

申请日：1992-04-30

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAIRA TERUHIKO ,  NAKAYAMA KOICHI ,  SUGAWARA TAKASHI ,  SUGA HIROAKI ,  KASE HIROAKI ,  TAKANO TAKASHI

IPC: F25B39/02 ,  F28F1/32

Abstract: PURPOSE:To prevent a remarkable decrease in cooling performance even when a heat exchanger is frosted by not completely sealing an air passage even if the exchanger is frosted, feeding the air to a downstream side through a remaining air passage and effectively cooling with a part having small frost and to further shorten a defrosting time by rapidly melting entire frost even at the time of defrosting. CONSTITUTION:A heat exchanger comprises a plurality of many fins 12a, 12b aligned in parallel, and a plurality of rows of heat transfer tubes 13 passing through the fins 12a, 12b. The fins 12a, 12b have cutouts 12c, 12d between passed parts of the tubes 13. Air passages formed entirely obliquely to the fins 12a, 12b are formed of the cutouts 12c, 12d, and no cutouts 12c, 12d exist on the downstream side of the air of the fins 12a, 12b in the exchanger.

公开(公告)号：JPH04165296A

公开(公告)日：1992-06-11

申请号：JP29241690

申请日：1990-10-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKANO TAKASHI ,  FUJINO KENJI

IPC: F28F1/32

Abstract: PURPOSE:To perform a mildewproofing effect without reducing hydrophilic properties by alternately disposing fins each provided with a hydrophilic film and fins each provided with mildewproofing agent to the film. CONSTITUTION:When fins 3 each provided with a hydrophilic film and fins 5 provided with mildewproofing agent to the film are alternately disposed at a predetermined interval in parallel, condensed water adhered to the fin at the time of room cooling does not become droplets, but completely moistened to reduce a ventilation resistance, thereby reducing noise. The agent has a feature of a halo effect to perform mildewproofing effect to the periphery. Since the mildewproofing effect is performed to not only the fin 5 provided with the agent to the hydrophilic film but also the fin 3 provided with the hydrophilic film, it can prevent mildew from being bred at a heat exchanger body.

公开(公告)号：JPH03241289A

公开(公告)日：1991-10-28

申请号：JP3765290

申请日：1990-02-19

Applicant: MATSUSHITA REFRIGERATION

Inventor： FUJINO KENJI ,  SUGA HIROAKI ,  TAKANO TAKASHI

IPC: F28F1/32 ,  B32B15/08 ,  F28F21/00

Abstract: PURPOSE:To keep the persistence of inhibitive action against the propagation of fungi and bacteria, by a method wherein after a hydrophilic coat consisting of a fungicide or silica with a water-dispersing property is formed on the surface of a fin member, a water-wettable coat with fine through-holes on the surface thereof is formed. CONSTITUTION:A fin member 1 for a heat exchanger is composed of a thin aluminum-made fin 2 with consideration for press working, and a hydrophilic coat 4 for which a fungicide 3 is properly mixed into a low molecular weight compound having an alkali silicate and a carbonyl group and dispersed, is formed on the surface of the aluminum-made fin. After that, the surface of the aluminum-made fin coated is also coated with another low molecular weight compound, which has not the fungicide but has the alkali silicate and the carbonyl group, and thus a water-wettable coat 5 is formed, of which the surface layer has fine through-holes. In this way, the fin member for which the persistence of a fungicidal effect is improved can be obtained.