WO2005033606A1 - 熱交換チューブ - Google Patents
熱交換チューブ Download PDFInfo
- Publication number
- WO2005033606A1 WO2005033606A1 PCT/JP2004/014005 JP2004014005W WO2005033606A1 WO 2005033606 A1 WO2005033606 A1 WO 2005033606A1 JP 2004014005 W JP2004014005 W JP 2004014005W WO 2005033606 A1 WO2005033606 A1 WO 2005033606A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchange
- flow path
- tube
- exchange tube
- brazing
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0391—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits a single plate being bent to form one or more conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
Definitions
- the present invention relates to a heat exchange tube in which a medium flowing through the flow path exchanges heat with heat transmitted to the tube.
- a heat exchanger such as a radiator or an evaporator used for a refrigeration cycle
- a flat heat exchange tube and a corrugated heat fin are alternately laminated to form a core, and the end of the tube is formed. It is known that they are connected to evening drinks.
- the refrigerant is taken into the heat exchanger from the tank and exchanges heat with the heat transferred to the core. After flowing through the heat exchange tube, the refrigerant is discharged from the tank to the outside.
- such a heat exchanger is manufactured by assembling components such as a heat exchange tube, a fin, and a tank integrally, and brazing the assembly in a furnace.
- Heat exchange tubes used in this type of heat exchanger are also disclosed in Patent Documents 1 to 33 below.
- the heat exchange tube can improve the heat exchange efficiency of the medium by providing a corrugated inner fin inside the tube body that constitutes the outer shell of the flow path through which the medium flows. is there. Also, if the inner fin is brazed to the inner surface of the tube body, the pressure resistance of the tube can be improved.
- Patent Document 1 Japanese Patent Application Laid-Open No. 6100146998
- Patent Document 2 Japanese Utility Model Publication No. 6 1 8 7 8 3
- Patent Document 3 JP-A-6-1660091
- Patent Document 4 Japanese Utility Model Application Publication No. 6 2 8 5 7 6
- Patent Document 5 Japanese Utility Model Publication No. 6 2 1 4 2 4 4 0
- Patent Literature 6 Japanese Utility Model Application No. 63-11-1 3 4 2 7 3 Japanese Patent Application No.
- Patent Literature 8 Akira Shoji 6 3—1 5 9 6 6 7
- Patent Document 9 Shojidaki 6 3 1 7 9 4 7 2
- Patent Literature 11 1 JP-A-4-1968862
- Patent Document 1 JP-A-5-18993
- Patent Document 13 JP-A-5-1133297
- Patent Document 14 JP-A-5-16992246
- Patent Document 15 JP-A-6-74606
- Patent Document 16 JP-A-6 1 2 9 7 3 4
- Patent Literature 1 JP-A 7-32 1 133
- Patent Literature 1 Waiting Kaihei 7- 2 6 5 9 8 5
- Patent Document 1 Japanese Unexamined Patent Application Publication No. H8-180708
- Patent Literature 2 1 Machi Kaihei 9—2 0 6 9 8 0
- Patent Document 2 JP-A-10-1977-1800
- Patent Document 2 3 Machikai Hei 1 0 1 3 0 0 3 8 2
- Patent Document 2 4 JP-A-11-101
- Patent Literature 2 5 Machi Kaihei 1 1 1 2 4 8 3 8 3
- Patent Literature 2 Machikai Hei 1 1-2 5 7 8 8 6
- Patent Document 2 Machikai Hei 1 1 1 2 6 4 6 7 5
- Patent document 2 Waiting opening 2 0 0 0-9 7 5 8 9
- Patent Literature 2 9 Standby opening 2 0 0 0-1 0 5 0 8 9
- Patent Literature 30 0 Waiting open 2 0 0 1-3 8 4 3 9
- Patent Literature 3 Waiting open 2 0 0 1-1 0 7 0 8 2
- Patent Literature 3 Waiting open 2 0 0 1-2 2 1 5 8 8
- Patent Literature 3 3 Waiting for opening 2 0 0 2-3 5 0 0 8 3
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a heat exchange tube that is more rationally configured based on current manufacturing technology.
- the invention described in claim 1 of the present application comprises: a tube main body constituting an outer shell of a flow path for circulating a medium; and a corrugated inner fin for partitioning the flow path, wherein the inner fin is provided.
- the top of the inner fin is a flat tube brazed to the inner surface of the tube main body, wherein the medium exchanges heat with the heat transmitted to the tube.
- the brazing material required for brazing the inner surface of the tube body with the second material forming the inner fin is not clad with the first material forming the tube body. This is a heat exchange tube with a clad configuration.
- the thickness of the cladding layer of the brazing material in the second material is 5 to 10% of the thickness of the second material. % Heat exchange tube.
- the invention described in claim 3 of the present application is the heat exchange tube according to claim 1 or 2, wherein the thickness of the second material is 0.1 mm or less.
- the invention described in claim 4 of the present application is the heat exchange tube according to claim 3, wherein the plate thickness of the second material is 0.05 to 0.07 mm.
- the invention described in claim 5 of the present application is the invention according to any one of claims 1 to 4, wherein the plate thickness of the first material is 0.25 mm or less. It is a heat exchange tube.
- the invention described in claim 6 of the present application is the heat exchange tube according to claim 5, wherein the first material has a plate thickness of 0.18 to 0.24 mm.
- the invention recited in claim 3 of the present application is the heat exchange tube according to any one of claims 1 to 6, wherein the tube has a thickness of 1.2 mm or less.
- the invention described in claim 8 of the present application is the heat exchange tube according to claim 7, wherein the tube has a thickness of 0.8 to 1.2 mm.
- the invention recited in claim 9 of the present application is the heat exchange tube according to any one of claims 1 to 8, wherein the width of the tube is 16 mm or less.
- the invention described in claim 10 of the present application is the heat exchange tube according to claim 9, wherein the tube has a width of 12 to 16 mm.
- the invention described in claim 11 of the present application is the invention according to any one of claims 1 to 10, wherein the equivalent diameter of the flow path defined by the inner fin is 0.559 mm or less.
- the equivalent diameter of the flow path defined by the inner fin is 0.254 It is a heat exchange tube having a configuration of mm to 0.559 m.
- the invention described in claim 13 of the present application is the heat exchange tube according to any one of claims 1 to 12, wherein a pitch of a top of the inner fin is 1.0 mm or less. is there.
- an A1-Zn alloy layer is provided on a surface of the first material that is an outer shell of the tube. It is a heat exchange tube of a structure.
- the heat exchange tube has a configuration in which the top of the inner fin is flat.
- the invention described in claim 16 of the present application is the invention according to any one of claims 1 to 15, wherein an end of the second material in the width direction is formed of a brazing material clad with the second material. This is a heat exchange tube brazed to the first material.
- the invention described in claim 1 of the present application is the liquid crystal display device according to any one of claims 1 to 16, wherein both ends of the first material in the width direction are formed at one end in the width direction of the tube.
- This is a heat exchange tube with a configuration in which two materials are engaged and brazed so as not to be separated from each other while sandwiching the widthwise ends of the materials.
- the invention described in claim 18 of the present application is the invention according to any one of claims 1 to 17, wherein a portion between the tops of the inner fins is a central axis in a width direction of the tube.
- This is a heat exchange tube configured to be non-perpendicular to.
- the invention described in claim 19 of the present application is the invention according to any one of claims 1 to 18, wherein the tube is a component of a heat exchanger, and the heat exchanger is It is manufactured by assembling the components together and brazing the assembly in a furnace. In the furnace brazing, the brazing material clad in the second material is melted from the other components.
- the heat exchange tube is configured to melt faster than the brazing material that enters the inside of the flow path, thereby preventing clogging of the flow path.
- the invention described in claim 20 of the present application is the invention according to claim 19, wherein the brazing material clad in the second material melts from the other constituent members and enters the inside of the flow passage.
- This is a heat exchange tube with a lower melting point.
- the invention described in claim 21 of the present application is the invention according to claim 19, wherein the brazing material clad in the second material has a thermal resistance of the tube. Since the other constituent members are small, the heat exchange tube is configured to melt from the other constituent members and melt earlier than the filter material that enters the inside of the flow path.
- the invention described in claim 22 of the present application is the invention according to any one of claims 19 to 21, wherein a lowermost one of the plurality of flow paths partitioned by the inner fin in the furnace brazing.
- the equivalent diameter of the flow path located on the side, or the equivalent diameter of the flow path located at the lowermost position in the furnace brazing and the flow path located in the vicinity thereof is defined by the inner fin.
- the heat exchange tube has a configuration that is larger than the overall average of the equivalent diameters of the multiple flow paths.
- the invention described in claim 23 of the present application comprises: a tube main body constituting an outer periphery of a flow path through which a medium flows; and a corrugated inner fin that partitions the flow path;
- the top of one fin is a flat tube brazed to the inner surface of the tube main body and is a heat exchange tube in which the medium exchanges heat with the heat transmitted to the tube.
- the width of the tube is 16 mm or less
- the thickness of the first material constituting the tube main body is 0.25 mm or less
- the second material constituting the inner fin is
- the heat exchange tube has a configuration in which the thickness of the material is 0.10 mm or less, and the equivalent diameter of the flow path defined by the inner fin is 0.559 mm or less.
- the invention described in claim 2 of the present application is the heat exchange tube according to claim 23, wherein the plate thickness of the second material is 0.05 to 0.07 mm.
- the invention described in claim 25 of the present application is the heat exchange tube according to claim 23 or 24, wherein the plate thickness of the first material is 0.18 to 0.24 mm. .
- the thickness of the tube is 0.8 to 1.2 mm.
- the invention described in claim 27 of the present application is the heat exchange tube according to any one of claims 23 to 26, wherein the width of the tube is 12 to 16 mm.
- the invention described in claim 28 of the present application is the invention according to any one of claims 23 to 27, wherein the equivalent diameter of the flow path defined by the inner fin is 0.254 mm or more.
- This is a heat exchange tube with a configuration of 0.559 mm.
- the invention described in claim 29 of the present application is the heat exchange tube according to any one of claims 23 to 28, wherein the pitch of the top of the inner fin is 1.0 mm or less. is there.
- an A1-Zn alloy layer is provided on a surface of the first material that is an outer shell of the tube. It is a heat exchange tube of a structure.
- the invention described in claim 31 of the present application is the heat exchange tube according to any one of claims 23 to 30, wherein the top of the inner fin is flat.
- the invention described in claim 32 of the present application is the heat exchange tube according to any one of claims 23 to 31, wherein the end in the width direction of the second material is brazed to the first material. It is.
- the invention described in claim 33 of the present application is the invention according to claim 32, wherein the both ends in the width direction of the first material are provided at one end in the width direction of the tube in the width direction of the second material.
- This is a heat exchange tube with a configuration in which the ends are sandwiched and engaged so that they do not separate from each other.
- the portion between the top of the inner fin and the section is formed in the width direction of the tube.
- This is a heat exchange tube configured to be non-perpendicular to the central axis.
- the invention described in claim 35 of the present application is the invention according to any one of claims 23 to 24, wherein the tube is a component of a heat exchanger, and the heat exchanger is a tube and other components. It is manufactured by assembling the members together and brazing the assembly in a furnace, and brazing the top of the inner fin and the inner surface of the tube body inside the flow passage. In the in-furnace brazing, the brazing material provided inside the flow path is faster than the brazing material that melts from the other components and enters the flow path.
- the heat exchange tube is configured to prevent clogging of the flow path by melting.
- the invention described in claim 36 of the present application is the invention according to claim 35, wherein the filter material provided inside the flow path is a brazing material that melts from the other constituent members and enters the inside of the flow path.
- This is a heat exchange tube with a lower melting point.
- the invention described in claim 37 of the present application is the invention according to claim 35, wherein the brazing material provided inside the flow passage is such that the heat resistance of the tube is smaller than that of the other constituent members.
- the heat exchange tube is configured to melt faster than a brazing material that melts from the other constituent members and enters the inside of the flow path.
- the invention described in claim 38 of the present application is the invention according to any one of claims 35 to 37, wherein a lowermost one of the plurality of flow paths partitioned by the inner fin in the furnace brazing.
- the equivalent diameter of the flow path located on the side, or the equivalent diameter of the flow path located at the lowest position in the furnace brazing and the flow path located in the vicinity thereof is defined by the inner fin.
- the heat exchange tube has a configuration that is larger than the overall average of the equivalent diameters of the plurality of flow paths.
- the invention described in claim 39 of the present application includes: a tube main body constituting an outer periphery of a flow path for circulating a medium; and a flow path partition for partitioning the flow path.
- a tube main body constituting an outer periphery of a flow path for circulating a medium
- a flow path partition for partitioning the flow path.
- the invention recited in claim 40 of the present application is the invention according to claim 39, wherein the flow passage section is a corrugated inner fin, and an inner surface of the tube main body includes: This is a heat exchange tube having a configuration in which the top of the inner fin is brazed.
- the invention recited in claim 41 of the present application is the invention according to claim 39, wherein the flow path partition body is a bead formed by molding a material constituting the tube main body.
- a heat exchange tube having a configuration in which the top of the bead is brazed to the inner surface of the main body.
- the invention described in claim 3 of the present application claim 42 is the method according to any one of claims 39 to 41, wherein the brazing material provided inside the flow path is melted from the other constituent members to form the flow path.
- the heat exchange tube has a lower melting point than the brazing material that penetrates the inside of the tube.
- the brazing material provided inside the flow path has a thermal resistance of the tube higher than that of the other constituent members.
- the heat exchange tube is configured to be melted earlier than the filter material that melts from the other constituent members and penetrates into the flow path due to being small.
- the invention described in claim 44 of the present application is the invention according to any one of claims 39 to 43, which corresponds to the flow channel partitioned by the flow channel partition body.
- the heat exchange tube has a diameter of 0.559 mm or less.
- the invention described in claim 45 of the present application is the invention according to claim 44, wherein the equivalent diameter of the flow path partitioned by the flow path partition is 0.254 mm to 0.559 mm. This is a heat exchange tube having a certain configuration.
- the invention described in claim 46 of the present application is the invention according to any one of claims 39 to 45, wherein, among the plurality of flow paths partitioned by the flow path partition body, the brazing in the furnace is most effective.
- the equivalent diameter of the lower flow path, or the equivalent diameter of the lowermost flow path and the flow path located in the vicinity of the lowermost flow path in the furnace brazing, is determined by the above-mentioned inner fin.
- This heat exchange tube has a configuration that is larger than the overall average of the equivalent diameters of multiple partitioned Ryuji.
- FIG. 3 is an explanatory view showing a heat exchanger according to the embodiment of the present invention. (First embodiment)
- FIG. 1 is an explanatory view showing a cross section of a heat exchange tube before brazing and an enlarged view of a main part thereof according to an embodiment of the present invention. (First embodiment)
- Fig. 3 is an explanatory view showing a cross section of a heat exchange tube before brazing and an enlarged view of a main part thereof according to an embodiment of the present invention.
- FIG. 4 is an explanatory view showing a cross section of a second material according to the embodiment of the present invention. (First embodiment)
- FIG. 2 is an enlarged view of a main part showing a cross section of the heat exchange tube before brazing according to the embodiment of the present invention. (Second embodiment)
- FIG. 2 is an enlarged view of a main part showing a cross section of the heat exchange tube before brazing according to the embodiment of the present invention. (Third embodiment)
- FIG. 11 is an essential part enlarged view showing a cross section of the heat exchange tube before brazing according to the embodiment of the present invention.
- FIG. 2 is an enlarged view of a main part showing a cross section of the heat exchange tube before brazing according to the embodiment of the present invention. (Third embodiment)
- FIG. 4 is an explanatory view showing a cross section of the heat exchange tube before brazing according to the embodiment of the present invention. (Fourth embodiment) Best mode for carrying out the invention
- FIGS. 1 to 3 a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.
- the heat exchanger 1 shown in Fig. 1 is a radiator for a refrigeration cycle for in-vehicle air conditioning mounted on an automobile.
- the heat exchanger 1 has a core 10 formed by alternately laminating heat exchange tubes 100 and heat radiation fins 20, and a pair of heat exchange tubes 100, each of which has a longitudinal end portion connected to each other.
- the tank 30 is provided.
- Reinforcing members 40 are provided on the upper and lower sides of the core 10, and both ends in the longitudinal direction of each reinforcing member 40 are supported by the tank 30 respectively.
- an inlet 31 and an outlet 32 for the medium are provided.
- the medium flowing from the inlet 31 is a core 10
- the heat is transmitted through the heat exchange tube 100 while the heat is transferred by the heat transferred to the heat exchange tube 100, and flows out from the outlet 32.
- the fin 20, tank 30, inlet 31, outlet 32, side plate 40, and heat exchange tube 100, which are the components of heat exchanger 1, are made of aluminum or aluminum alloy, respectively. Made of stainless steel, assembled together using a jig, and assembled Is overheat-treated in a furnace and brazed together. For such brazing in furnaces, brazing filler metals and flux are provided at key points of each member.
- the heat exchange tube 1 of this example shown in FIG. 2 has a tube main body 200 that forms the outer periphery of the flow path 101 through which the medium flows, and a corrugated inner tube that defines the flow path 101.
- the top of the inner fin 300 is of a flat type brazed to the inner surface of the tube main body 200.
- the thickness t tube of the heat exchange tube 100 is 1.2 mm or less. More preferred values for the thickness t tube of the heat exchange tube 100 are 0.8 to: 1.2 mm.
- the width w tube of the heat exchange tube 100 is 16 mm or less. A more preferred value of the width w tube of the heat exchange tube 100 is 12 to 16 mm.
- the equivalent diameter of each flow passage 101 partitioned by the inner fin 200 is 0.559 mm or less. A more preferable value of the equivalent diameter of the flow path 101 is 0.254 mm to 0.559 mm.
- d e 4 X (cross-sectional area of the flow channel) / (full length of wetted cross-section of the flow channel).
- the medium exchanges heat with the heat transmitted to the heat exchange tube 100.
- the tube main body 200 is formed by roll-forming a strip-shaped first material made of aluminum or an aluminum alloy. Both end portions 201 of the first material in the width direction are engaged so as not to be separated from each other at one end portion 102 of the heat exchange tube 100 in the width direction. Further, the other end 103 in the width direction of the heat exchange tube 100 ° is a portion that is curved substantially at the center of the first material.
- the inner fin is 300, it is a strip of aluminum or aluminum alloy. ", --,
- the second material is roll-formed.
- the pitch P at the top of the inner fin is less than 1.0 mm.
- the inner fin 300 is inserted between the first materials at an appropriate stage of the roll forming of the tube main body 200 and is provided inside the tube main body 200.
- the brazing material required for brazing the top 310 of the inner fin 300 serving as the flow path dividing body and the inner surface of the tube main body 200 is the tube main body 200.
- the first material is not clad, but is clad on the second material constituting the inner fin 300.
- brazing material when brazing the top 310 of the inner fin 300 and the inner surface of the tube main body 200, it is necessary to use a brazing material on at least one of the first and second materials.
- a configuration is adopted in which the second material is clad with ash. This is to keep brazing material to a minimum. The concept is explained below.
- brazing material containing silicon is indispensable for brazing, but after brazing, it may cause erosion of the core material, so it is desirable to keep the brazing material as small as possible.
- the brazing material is manufactured by laminating the core material and the brazing material at a predetermined ratio and rolling the material, the thickness of the brazing material cladding layer is limited.
- the lower limit of the thickness of the cladding layer is about 5% of the material thickness
- the heat exchanger tubes 1 0 0 structural, be thinner extent is of It is possible. Therefore, the conclusion is that in order to set a small amount of brazing material, it is advisable to use only the second material with a brazing material.
- the brazing of the ends 201 of the first material is performed in the furnace described above. In brazing, the brazing material is formed by a brazing material that penetrates from the tank 30 side by capillary action. According to such a configuration, the amount of brazing material used can be reduced, and the depth of the silicon diffusion layer of the first material can be reduced, so that the thickness of the first material can be reduced. is there.
- the widthwise end portion 301 of the second material is It is advisable to braze the first material with the brazing material clad in the second material. If the end portion 301 of the second material is brazed to the first material, the movement of the end portion 301 of the second material due to the flow of the medium is prevented, and the durability and the medium of the heat exchange tube 100 are prevented. It is possible to improve flow stability without fail.
- the plate thickness t i of the first material is 0.25 mm or less.
- a more preferable value of the thickness t ⁇ of the first material is 0.18 to 0.24 mm.
- an A 1 -Zn alloy layer is provided as a sacrificial layer for improving the corrosion resistance of the heat exchange tube 100 on the surface of the first material that is the outer shell of the heat exchange tube 100.
- the second material as shown in FIG. 3 are those formed by providing a clad layer 3 0 0 b of brazing material on both surfaces of the core member 3 0 0 a, the thickness t 2 is 0. 1 mm or less. More preferred values of the second material thickness t 2 is 0. 0 5 ⁇ O. 0 7 mm. The thickness of the clad layer 3 0 0 b of the brazing material in the second material relative to the thickness t 2 of the second material has become the rate is 5 to 1 0%.
- the top 310 of the inner fin 300 is flat, the top 310 of the inner fin 300 and the inner surface of the tube main body 200 are brazed. The area is sufficiently secured.
- the brazing strength and the reliability of brazing are surely improved. If the top 310 of the inner fin 300 is flat, the tube main body 200 and the inner Since the friction with the fin 200 increases, when the heat exchange tube 100 is cut to a predetermined length before brazing, displacement of the inner fin 200 is prevented. There is also an advantage.
- the width w f 1 at of the flat portion at the top 310 is 2.5 to 0.5 when the thickness t 2 of the material is 1.
- a portion between the top 310 and the top 310 of the inner fin 300 is not perpendicular to the center axis L in the width direction of the heat exchange tube 100.
- the intersection angle ⁇ between the portion between the top 310 and the top 310 of the inner fin 300 and the center axis L in the width direction is 65 to 85 °. It has become.
- the intersection angle O is a right angle
- the heat exchange tube 100 is cut to a predetermined length before brazing, the cutting edge is moved in parallel with the center axis L in the width direction. In this example, such an inconvenience is avoided by setting the intersection angle 6) to a good value where the deformation of the pin 300 becomes large.
- the brazing material clad in the second material is melted from the other constituent members such as the nozzle 30 constituting the heat exchanger 1 and the flow path 101
- the clogging of the flow path 101 is prevented. This is because when the filter medium enters the inside of the flow path 101 from the outside, if the inside of the heat exchange tube 100 is in a dry state, the infiltrated brazing material will have its surface tension, etc. This is because due to the influence, the water partially accumulates in the inside of the flow passage 101, which causes clogging.
- the brazing material clad in the second material has a lower melting point than the brazing material that melts from the surface of the tank 30 and enters the inside of the flow path 101.
- the brazing material clad in the second material melts from the surface of the tank 30 and enters the inside of the flow passage 101 because the heat resistance of the heat exchange tube 100 is smaller than that of the nozzle 30. It is configured to melt faster than the brazing material that enters.
- the flow path 101 is located at the lowest position in brazing in a furnace.
- the equivalent diameter of the flow path 101 is the inner diameter. It is preferable that the diameter is set to be larger than the overall average of the equivalent diameters of the plurality of flow paths 101 divided at 300.
- the flow path located at one end 102 of the heat exchange tube 100 in the width direction is used.
- the equivalent diameter of 101 is set large, and if necessary, the equivalent diameter of the flow path 101 located near the flow path 101 is set large.
- the equivalent diameter of the flow path 101 located at the other end 103 in the width direction of the heat exchange tube 100 is set large, and if necessary, the flow path 101 is located near the flow path 101.
- the equivalent diameter of the flow path 101 is also set to be large.
- the pitch P at the top is somewhat larger than the pitch P at the top in other parts.
- the heat exchange tube 100 of this example is very It is rationally configured and can be suitably used as a component of the heat exchanger 1.
- the numerical value setting of each part in the heat exchange tube 100 is a value obtained by pursuing better performance of the heat exchange tube 100 based on the current manufacturing technology.
- both end portions 201 in the width direction of the first material are one end portion 102 in the width direction of the heat exchange tube 100.
- the end portion 301 of the second material is brazed to the end portion 201 of the first material while engaging and brazing so as not to separate from each other.
- Other basic configurations are the same as those of the above-described specific example.
- the end 301 of the second material may be brazed to the end 201 of the first material.
- FIGS. 5 to 7 a third embodiment of the present invention will be described with reference to FIGS. 5 to 7.
- both ends of the first material in the width direction in the case of the heat exchange tube 100 of the present embodiment, both ends of the first material in the width direction.
- the first and second heat exchange tubes 1001 and 102 will engage with each other at one end portion 102 in the width direction of the heat exchange tube 100 so as not to be separated from each other while sandwiching the widthwise end portion 301 of the second material. Attached.
- the end 201 of the first material and the end 301 of the second material are brazed with the brazing material clad in the second material and the brazing material entering from the tank 30 side.
- the shape of the end portion 201 of the first material and the shape of the end portion 301 of the second material can be appropriately set as shown in FIGS. 6 and 7, for example. do not do.
- the other basic configuration is the same as the above-described concrete example.
- the end 301 of the second material may be sandwiched between the end 201 of the first material.
- the ends 201 of the first material can be brazed with the brazing material clad with the second material. If the end portions 201 of the first material in the width direction are brazed to each other with only the brazing material that enters from the tank 30 side, if the heat exchange tube 100 is relatively long, the filter material will spread sufficiently. In some cases, this may cause poor brazing. In this regard, in the present embodiment, it is possible to avoid such inconvenience and reliably improve the reliability of brazing the end portions 201 in the width direction of the first material.
- the inner fin 300 is formed of a heat exchange tube 1. Accurate positioning can be performed inside 0 0. In particular, the size of the flow path 101 at one end portion 102 and the other end portion 103 of the heat exchange tube 100 can be accurately regulated. Also, a decrease in withstand voltage due to a displacement of the inner fin 300 is prevented.
- the flow path partitioning body for partitioning the flow path 101 is a bead 200 formed by molding a key part of the first material. There are two. The top of the bead 202 was brazed to the inner surface of the tube main body 200.
- the brazing material required for brazing the tube main body 20 ° to the top of the bead 202 and the brazing material required for brazing both ends 201 of the first material are the same as those used in the inside of the flow path.
- the brazing material clad in the first material melts faster than the brazing material that enters the flow passage 101 from the outside. The clogging of the flow path 101 is prevented.
- Other basic configurations are the same as those of the above-described specific example. Thus, it is also possible to provide a bead as a flow path partition.
- the brazing material or the first material is clad, and in the in-furnace brazing, the brazing material is melted from other components constituting the heat exchanger and becomes inside the flow passage 101. It is configured to melt faster than the invading brazing material.
- the heat exchange tube of the present invention can be used, for example, as a component of a vehicle heat exchanger.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/573,077 US20070119581A1 (en) | 2003-09-30 | 2004-09-16 | Heat exchanger tube |
EP04773389.4A EP1681528A4 (en) | 2003-09-30 | 2004-09-16 | TUBE FOR THERMAL EXCHANGER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003340601A JP2005106389A (ja) | 2003-09-30 | 2003-09-30 | 熱交換チューブ |
JP2003-340601 | 2003-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005033606A1 true WO2005033606A1 (ja) | 2005-04-14 |
Family
ID=34419189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/014005 WO2005033606A1 (ja) | 2003-09-30 | 2004-09-16 | 熱交換チューブ |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070119581A1 (ja) |
EP (1) | EP1681528A4 (ja) |
JP (1) | JP2005106389A (ja) |
WO (1) | WO2005033606A1 (ja) |
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DE102006002627A1 (de) * | 2006-01-19 | 2007-08-02 | Modine Manufacturing Co., Racine | Flachrohr, Wärmetauscher und Herstellungsverfahren |
DE102006054814A1 (de) * | 2006-11-22 | 2008-05-29 | Modine Manufacturing Co., Racine | Gelötetes Flachrohr für Kondensatoren und/oder Verdampfer |
US7921559B2 (en) | 2006-01-19 | 2011-04-12 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8281489B2 (en) | 2006-01-19 | 2012-10-09 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8434227B2 (en) | 2006-01-19 | 2013-05-07 | Modine Manufacturing Company | Method of forming heat exchanger tubes |
US8438728B2 (en) | 2006-01-19 | 2013-05-14 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8683690B2 (en) | 2006-01-19 | 2014-04-01 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8726508B2 (en) | 2006-01-19 | 2014-05-20 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US9038267B2 (en) | 2010-06-10 | 2015-05-26 | Modine Manufacturing Company | Method of separating heat exchanger tubes and an apparatus for same |
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JP2007120888A (ja) * | 2005-10-28 | 2007-05-17 | Denso Corp | 熱交換器用チューブおよびその製造方法 |
JP2007125590A (ja) * | 2005-11-04 | 2007-05-24 | Denso Corp | 熱交換器および熱交換器の製造方法 |
DE102006016711B4 (de) * | 2006-04-08 | 2016-11-03 | Modine Manufacturing Co. | Flachrohr für Wärmetauscher |
DE102007031912A1 (de) * | 2006-07-11 | 2008-02-07 | Denso Corp., Kariya | Abgaswärmetauscher |
DE102007004993A1 (de) * | 2007-02-01 | 2008-08-07 | Modine Manufacturing Co., Racine | Herstellungsverfahren für Flachrohre und Walzenstraße |
JP4259583B2 (ja) * | 2007-02-15 | 2009-04-30 | 株式会社デンソー | 排気熱回収装置 |
KR101353386B1 (ko) * | 2007-08-20 | 2014-01-21 | 한라비스테온공조 주식회사 | 열교환기용 튜브 |
US8776874B2 (en) * | 2007-12-30 | 2014-07-15 | Valeo, Inc. | Heat exchanger tubes and methods for enhancing thermal performance and reducing flow passage plugging |
JP5167930B2 (ja) * | 2008-04-25 | 2013-03-21 | 株式会社デンソー | 熱交換器 |
DE102008052785B4 (de) | 2008-10-22 | 2022-06-02 | Innerio Heat Exchanger GmbH | Flachrohr und Herstellungsverfahren |
US20110284195A1 (en) * | 2010-05-20 | 2011-11-24 | Delphi Technologies, Inc. | Fabricated tube for an evaporator |
JP5655676B2 (ja) * | 2010-08-03 | 2015-01-21 | 株式会社デンソー | 凝縮器 |
FR2973490B1 (fr) * | 2011-03-31 | 2018-05-18 | Valeo Systemes Thermiques | Tube pour echangeur thermique, echangeur thermique et procede d'obtention correspondants |
DE102012211350A1 (de) * | 2012-06-29 | 2014-01-02 | Behr Gmbh & Co. Kg | Flachrohr und Wärmeübertrager mit einem solchen Flachrohr |
CN103575140A (zh) * | 2012-07-19 | 2014-02-12 | 格伦格斯有限公司 | 用于电力电子设备和电池冷却的具有焊接管的紧凑型铝换热器 |
EP2984433A1 (en) * | 2013-04-10 | 2016-02-17 | Carrier Corporation | Folded tube multiple bank heat exchange unit |
JP5884055B2 (ja) * | 2014-05-09 | 2016-03-15 | パナソニックIpマネジメント株式会社 | 熱交換器および熱交換器用オフセットフィン |
WO2018202630A1 (en) * | 2017-05-02 | 2018-11-08 | Valeo Systemes Thermiques | A flat tube for a heat exchanger and a heat exchanger |
JP6843012B2 (ja) * | 2017-07-14 | 2021-03-17 | 株式会社日本クライメイトシステムズ | 熱交換器用チューブ |
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- 2004-09-16 WO PCT/JP2004/014005 patent/WO2005033606A1/ja active Application Filing
- 2004-09-16 US US10/573,077 patent/US20070119581A1/en not_active Abandoned
- 2004-09-16 EP EP04773389.4A patent/EP1681528A4/en not_active Withdrawn
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JP2002098454A (ja) * | 2000-07-21 | 2002-04-05 | Mitsubishi Materials Corp | 液冷ヒートシンク及びその製造方法 |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006002627A1 (de) * | 2006-01-19 | 2007-08-02 | Modine Manufacturing Co., Racine | Flachrohr, Wärmetauscher und Herstellungsverfahren |
US7921559B2 (en) | 2006-01-19 | 2011-04-12 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8281489B2 (en) | 2006-01-19 | 2012-10-09 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8434227B2 (en) | 2006-01-19 | 2013-05-07 | Modine Manufacturing Company | Method of forming heat exchanger tubes |
US8438728B2 (en) | 2006-01-19 | 2013-05-14 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8683690B2 (en) | 2006-01-19 | 2014-04-01 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8726508B2 (en) | 2006-01-19 | 2014-05-20 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
DE102006054814A1 (de) * | 2006-11-22 | 2008-05-29 | Modine Manufacturing Co., Racine | Gelötetes Flachrohr für Kondensatoren und/oder Verdampfer |
US9038267B2 (en) | 2010-06-10 | 2015-05-26 | Modine Manufacturing Company | Method of separating heat exchanger tubes and an apparatus for same |
Also Published As
Publication number | Publication date |
---|---|
EP1681528A4 (en) | 2013-06-12 |
EP1681528A1 (en) | 2006-07-19 |
US20070119581A1 (en) | 2007-05-31 |
JP2005106389A (ja) | 2005-04-21 |
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