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1. 发明专利

JPH10318696A HEAT EXCHANGER, INDOOR UNIT FOR AIR CONDITIONER AND OUTDOOR UNIT FOR THE CONDITIONER 失效
公开(公告)号：JPH10318696A
公开(公告)日：1998-12-04
申请号：JP12954797
申请日：1997-05-20
申请人： DAIKIN IND LTD
发明人： YOSHIDA KAORI , HIRUKO TAKESHI , YAMASHITA HIROYUKI , ENOKIDA TATSUUMI
IPC分类号： F24F1/00 , F24F1/18 , F24F1/36 , F24F5/00 , F25B47/02 , F28F1/32 , F28F13/18
摘要： PROBLEM TO BE SOLVED: To largely improve a drain discharging function by forming a coating layer containing photocatalytic semiconductor material for exciting hydrophilic activity by a light on a surface of a fin in a heat exchanger having a heat transfer tube and the fin. SOLUTION: A heat exchanger A having many heat transfer tubes 1 disposed in parallel and many plate-like fins 2 disposed in a perpendicular state to the tubes 1 is adopted as a heat exchanger A in the indoor unit for the air conditioner. In this case, a coating layer 11 containing photocatalytic semiconductor material to be excited in hydrophilic activity by a light is formed on an entire surface area of the fins 2. When a light having a specific wavelength is emitted to this layer 11, an extremely high hydrophilizing phenomenon occurs. Then, the hydrophilic activity of the layer 11 having a light source arranged at a leeward side of an air filter is recovered by emitting the light from the source in an air passage to hold a satisfactory drain discharging function for a long period.

2. 发明专利

JPH07260382A HEAT EXCHANGER 失效
公开(公告)号：JPH07260382A
公开(公告)日：1995-10-13
申请号：JP5059894
申请日：1994-03-22
申请人： DAIKIN IND LTD
发明人： KASAI KAZUNARI , YAMASHITA HIROYUKI , KI KANNAN
IPC分类号： F28F1/32
摘要： PURPOSE:To improve a fin efficiency and to easily form cut-out pieces around heat transfer tubes in a fin by increasing an area of the fin at the windward side of the heat transfer tube relative to an intermediate area between the heat transfer tubes at the windward side of the fin and effectively employing a part with short thermal conductive distance from the heat transfer tube. CONSTITUTION:A heat exchanger is provided with a plurality of heat transfer tubes 1 provided in parallel and a plurality of plate-like fins 2 perpendicular to the heat transfer tubes 1. A fin area located at the windward side of the heat transfer tubes 1 in an air inflow side of each fin increases relative to a fin area located in an intermediate part in the direction of rows of the heat transfer tubes 1 in the air inflow side of each fin.

3. 发明专利

JPH06300474A HEAT EXCHANGER WITH FIN 失效
公开(公告)号：JPH06300474A
公开(公告)日：1994-10-28
申请号：JP8468693
申请日：1993-04-12
申请人： DAIKIN IND LTD
发明人： FUJINAMI ISAO , NUMATA MITSUHARU , YAMASHITA HIROYUKI , KAWAZOE MASANORI
IPC分类号： F28F1/32
摘要： PURPOSE:To contrive a rapid discharge of water droplets after defrosting and the improvement of heat transfer rate on the air side downwind a heat transfer pipe to improve the efficiency of heating operation. CONSTITUTION:The heat exchanger with fins is composed of a number of heat transfer pipes 1 arranged horizontally and plate-like cross fins 2 arranged perpendicularly to the heat transfer pipes 1. The cross fin 2 is provided with a number of cut and raised pieces 3 located downwind of the heat transfer pipe 1 and oriented perpendicularly to the blowing direction of wind W and projecting parts 4 located between each adjacent heat transfer pipe 1 to direct the wind W toward the part forming the cut and raise pieces.

4. 发明专利

JPH06285540A MANUFACTURE OF INSIDE SURFACE WORKED TUBE 失效
公开(公告)号：JPH06285540A
公开(公告)日：1994-10-11
申请号：JP7808993
申请日：1993-04-05
申请人： DAIKIN IND LTD
发明人： HIRUKO TAKESHI , OKUYAMA KAZUYUKI , TODA KAZUMI , YAMASHITA HIROYUKI
IPC分类号： B21C37/15 , F28F1/40
摘要： PURPOSE:To facilitate formation of a spiral groove into a tube, and to improve the tube inside heat transfer rate by forming many projections on a belt-like plate consisting of a heat good conductor, working the plate in a cylindrical shape, while rolling it spirally and welding its butt end part. CONSTITUTION:While allowing a belt-like plate 1 consisting of a heat good conductor to flow continuously by using a suitable carrying means, many projections 3, 3... being parallel to the longitudinal direction are formed on the plate 1 by a projection forming roller 2. The projections 3, 3 ... are inclined to one side by using a projection inclining roller 4, the surface on which the projections 3, 3 ... are formed is set to the inside and the plate 1 is worked in a cylindrical shape 1', while rolling it spirally by using a pair of spiral roll rollers 5, 5, and a butt end part 1a of the plate 1 is welded. In such a way, facility of working and security of a tube inside heat transfer rate improving effect are attained.

5. 发明专利

JPH06180191A HEAT-EXCHANGER WITH FIN 失效
公开(公告)号：JPH06180191A
公开(公告)日：1994-06-28
申请号：JP32952492
申请日：1992-12-09
申请人： DAIKIN IND LTD
发明人： YAMASHITA HIROYUKI , SUEHIRO KENICHI , KAWABATA KATSUHIRO
IPC分类号： F28F1/12
摘要： PURPOSE:To provide high heat-exchange performance by suppressing the genera tion of bypass air and maintaining a distance between modules. CONSTITUTION:Even when bending deformation occurs to mesh fin end parts 11a-13a because of end parts 11a-13a of mesh fins 11-13 being bent and brought into a butt against a tube plate 3 in a state to be positioned opposite to the tube plate, the deformation does not immediately exercise any influenace on the generation of bypass air owing to lowering local ventilation resistance of the mesh fins 11-13. Thereby, heat-exchange performance is maintained in an excellent state and especially, fog produced when a heat-exchanger with a fin is applicable for an indoor machine is prevented from generation. Further, since bending deformation of the mesh fin end parts 11a-13a does not exercise any influenace directly on lowering of heat-exchange performance, there is no need to care bending deformation of the mesh end parts 11a-13a so much, assembly of modules 6 and 7 with each other is practicable, and workability is also improved.

6. 发明专利

JPH0626776A HEAT EXCHANGER 失效
公开(公告)号：JPH0626776A
公开(公告)日：1994-02-04
申请号：JP18387092
申请日：1992-07-10
申请人： DAIKIN IND LTD
发明人： YAMASHITA HIROYUKI , KAWABATA KATSUHIRO , YASUO KOICHI , SUEHIRO KENICHI
IPC分类号： F28F1/12
摘要： PURPOSE:To enhance the whole strength of a heat exchanger and prevent an increase in draft resistance attributable to a failure which keeps a sufficient span between mesh-shaped fins. CONSTITUTION:A heat exchanger comprises a large number of heat exchanger tubes 1 laid out in parallel and a large number of mesh-shaped fins 2 joined with the outer circumference of the heat exchanger tubes in parallel to the longitudinal direction of the tubes. Span holding members 4 are interposed between these mesh-shaped fins 2 so as to hold a specified span between the mesh-shaped fins.

7. 发明专利

JPH0626775A HEAT EXCHANGER 失效
公开(公告)号：JPH0626775A
公开(公告)日：1994-02-04
申请号：JP18386992
申请日：1992-07-10
申请人： DAIKIN IND LTD
发明人： YAMASHITA HIROYUKI
IPC分类号： F28F1/12
摘要： PURPOSE:To enhance fin efficiency without increasing the resistance of circulating air and improve mounting workability between a heat exchanger tube and mesh-shaped fins. CONSTITUTION:A heat exchanger comprises a large number of heat exchanger tubes 1 laid out in parallel and a large number of mesh-shaped fins 2 joined with the outer circumference of the heat exchanger tubes in parallel to the longitudinal direction of the tubes. Each mesh-shaped fin 2 is designed to consist of strips 6 to be joined along each of the heat exchanger tubes 1 and a large number of small lines 4 laid out, intersecting with the strips 6.

8. 发明专利

JPH0599452A AIR CONDITIONER 失效
公开(公告)号：JPH0599452A
公开(公告)日：1993-04-20
申请号：JP26200491
申请日：1991-10-09
申请人： DAIKIN IND LTD
发明人： KAWABATA KATSUHIRO , YAMASHITA HIROYUKI
IPC分类号： F24F1/00 , F24F13/08 , F24F13/20
摘要： PURPOSE:To improve an air flowing speed distribution in an air conditioner without altering a structure of a heat exchanger (e.g. altering a fin pattern). CONSTITUTION:An air conditioner comprises a fan 4, and a heat exchanger 6 so disposed at an upstream side of an air flowing passage 5 in a casing 1 for containing the fan 4 as to cross the upstream side. An air flowing speed distribution controller 8 so formed of a porous member in which the air can flow that an air flowing resistance of a part 8a near the fan 4 is larger than that of a part 8b far from the fan 4 is disposed at a position near an upstream side or a downstream side of the exchanger 6.

9. 发明专利

JPH0375427A ICE-COLD-HEAT STORAGE APPARATUS 失效
公开(公告)号：JPH0375427A
公开(公告)日：1991-03-29
申请号：JP20924289
申请日：1989-08-12
申请人： DAIKIN IND LTD
发明人： ITO SHINGO , NAKAZAWA YUJI , YAMASHITA HIROYUKI
IPC分类号： F24F5/00
摘要： PURPOSE:To surely eliminate overcooling by a method wherein a water solution is partially cooled to give a thermal shock when the water solution reaches a overcooled state. CONSTITUTION:When at least the intermediate layer of a water solution W reaches a specified overcooling temperature, a temperature detector 8 is put in action and the detected temperature signal is transmitted to a signal receiver 9a of a controller 9. On receipt of the signal, the signal receiver 9a sends an action signal to an action switch 9b to close it, so that a closed circuit is formed between a constant-current power source 11 and a thermoelectric element 10. Consequently, the thermoelectric element 10 operates, and the temperature of a heat absorption part 10d falls to a low temperature with an increase in the temperature of a heat radiation part 10c by virtue of peltier effect, so that the water solution W in a low temperature cooled state around the heat absorption part 10d is rapidly cooled. Thereby, a thermal shock is given to the water solution W, and overcooling of the water solution W is locally eliminated around the heat absorption part 10d, causing the water solution to freeze. Thus, overcooling eliminating action is surely performed.

10. 发明专利

JPH02118373A MAKING OF ICE AND HEAT ACCUMULATING DEVICE FOR ICE 失效
公开(公告)号：JPH02118373A
公开(公告)日：1990-05-02
申请号：JP27404588
申请日：1988-10-27
申请人： DAIKIN IND LTD
发明人： YAMASHITA HIROYUKI , NAKAZAWA YUJI , ITO SHINGO
IPC分类号： F25C1/00
摘要： PURPOSE:To permit the production of ice having a high melting speed upon dissipating heat by a method wherein liquid having the property of oil is cooled to a temperature below a freezing point while water for making ice, which is in the form of water drips, is supplied into the oily liquid to freeze it while king the water in the form of drips to flow through the oily liquid and floating up it to the upper part of the oily liquid. CONSTITUTION:Oily liquid O is cooled to a temperature below a freezing point by the evaporation of refrigerant in a cooling tube 4b, which is generated by the operation of a freezing means 4, and, thereafter, water W for making ice is supplied in the form of water drips through water drips pouring nozzle 5c. The supplied water W descends into an ice making vessel 2 since the specific weight of the water is larger than the same of the oily liquid O, then, the freezing of the water is started by heat exchange between the oily liquid O and the specific weight thereof becomes gradually smaller than the same of the oily liquid O. When the water drips have become ice I perfectly, the ices I float up to the uppermost part of the oily liquid O whereby the ice blocks I become the ice for accumulating heat. In this case, the oily liquid O is interposed between a plurality of small pieces of the ice I and, therefore, the small pieces of ice will never be integrated into one block of ice whereby they may be reserved in a state of maintaining flowability.

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