CN101011767A - Method of manufacturing heat exchanger and heat exchanger - Google Patents
Method of manufacturing heat exchanger and heat exchanger Download PDFInfo
- Publication number
- CN101011767A CN101011767A CNA2007100044404A CN200710004440A CN101011767A CN 101011767 A CN101011767 A CN 101011767A CN A2007100044404 A CNA2007100044404 A CN A2007100044404A CN 200710004440 A CN200710004440 A CN 200710004440A CN 101011767 A CN101011767 A CN 101011767A
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- China
- Prior art keywords
- pipe
- central layer
- braze material
- clearance portion
- connecting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 77
- 238000005219 brazing Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 23
- 229910000679 solder Inorganic materials 0.000 claims description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
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- 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
- F28D1/04—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 tubular conduits
- F28D1/053—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 tubular conduits the conduits being straight
- F28D1/0535—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 tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0012—Brazing heat exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0082—Charged air coolers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat exchanger has a core including tubes and a core plate coupled to the core. The core plate has a coupling wall on which tube insertion holes are formed for receiving ends of the tubes. The coupling wall has an end portion and a clearance portion both coupled to the tubes. The clearance portion is integrally connected to the end portion and spaced from an imaginary plane, on which the end portion is located. A paste brazing material is applied to a joining portion between the core plate and each tube by a brazing material applying device through a space provided between the clearance portion and the imaginary plane.
Description
Technical field
The present invention relates to the manufacture method of heat exchanger and the heat exchanger of making by described method.
Background technology
Generally speaking, heat exchanger has: the core that is made of a folded pipe and fin; And a pair of header tank of locating in this core end (header tank).For example, in the open No.2005-118826 (US2005/0082350) of Japanese unexamined patent, header tank is made of box main body and central layer.The shape of this central layer is roughly box-like, and wherein, described central layer is a blind end and be to open end at opposite side in a side.This central layer is connected to box main body, combines with box main body thereby make to open to hold.This central layer is formed with the pipe patchhole on the flat part of blind end.The end of aforementioned tube be inserted into and by solder brazing to the aforementioned tube patchhole.
In this heat exchanger, the end of central layer and pipe is for example with the following methods by solder brazing.At first, near coating paste braze material (paste brazing material) the pipe patchhole of central layer.Then, come predetermined fixed pipe and central layer by the pipe patchhole that the end of pipe is inserted central layer.After this, heating is by the pipe of predetermined fixed and central layer.So, the connecting portion between braze material fusing and inflow pipe and the central layer.Central layer and pipe are thus by solder brazing.
In above-mentioned braze welding method, owing to the paste braze material applies in advance, so when the pipe patchhole was inserted in the end of pipe, the paste braze material can be shifted or drop.And, because the paste braze material is applied near the pipe patchhole, can be by fully, fully be distributed in the connecting portion so during heating also be related to the paste braze material.But these problems have caused the reduction of brazeability.
In order to address the above problem, after predetermined fixed central layer and pipe, the paste braze material can directly be applied to connecting portion.Yet, in this case, have been found that be difficult to by use have straight end the braze material applying device, as normal allocation device (dispenser) the paste braze material is applied to connecting portion.
Example when Figure 11 shows with the distributor 200 coating paste braze material with straight end.Generally speaking, the end that is arranged in the fin 921 between the pipe 922 is positioned at central layer 911 vicinities, so that sufficient heat exchange performance to be provided.Therefore, the straight end of distributor 200 and the end of fin 921 interfere, shown in the double dot dash line among Figure 11.The predetermined position that makes the end of distributor 200 enter between the pipe 922 is difficult.Under the end of fin 921 is not formed in situation near the position of central layer 911, apply braze material easily.Yet this causes the reduction of heat exchange performance.
Summary of the invention
Consider that foregoing problems made the present invention, and, the object of the present invention is to provide: a kind of manufacture method of heat exchanger, but the central layer of this heat exchanger and the enhancing of the brazeability between the pipe, the manufacture method of described heat exchanger does not cause the reduction of heat-exchange capacity; And the heat exchanger that passes through this method manufacturing.
According to an aspect of the present invention, heat exchanger has central layer and pipe.Described central layer has the connecting wall that is formed with the pipe patchhole.Described connecting wall comprises end and clearance portion.Described clearance portion and position, described end imaginary plane thereon separate.Described pipe patchhole is formed crosses over described clearance portion and described end.By the end of described pipe being inserted the pipe patchhole of described central layer, thus with described central layer predetermined fixed to described pipe.Then, by the braze material applying device paste braze material is applied to connecting portion between described central layer and the described pipe.After this, heating is by the central layer of predetermined fixed and pipe, thus the described connecting portion of solder brazing.
In described central layer, because described clearance portion and position, described end imaginary plane thereon separate, so between described clearance portion and described imaginary plane, provide the space.Therefore, enter the space that provides by described clearance portion by the end that makes the braze material applying device, and the paste braze material is applied to connecting portion.Therefore, the interference of fin reduces between braze material applying device and pipe.Thereby, but can under the situation that does not reduce heat-exchange capacity, improve brazeability.
Description of drawings
From the detailed description made from reference to accompanying drawing subsequently, other purposes of the present invention, feature and advantage will be more obvious, in the accompanying drawings, represent similar part with similar Reference numeral, and, wherein:
Fig. 1 is according to the embodiment of the invention, as the front schematic view of the intercooler of heat exchanger;
Fig. 2 is the viewgraph of cross-section of the part of the intercooler obtained along the line II-II among Fig. 1;
When Fig. 3 is the longitudinal 2 observation of pipe in Fig. 2, the central layer of intercooler and the schematic cross-sectional view of the connecting portion between the pipe;
Fig. 4 A to 4C is the illustrative viewgraph of cross-section, is used to illustrate the manufacturing step according to the intercooler of this embodiment;
Fig. 5 A to 5C is the illustrative viewgraph of cross-section, is used for illustrating the manufacturing step of described intercooler when the line V-V of Fig. 3 gets.
Fig. 6 is a schematic cross-sectional view, is used to illustrate according to this embodiment, has applied the part of paste braze material;
Fig. 7 is the schematic cross-sectional view of the part of intercooler according to another embodiment of the present invention;
Fig. 8 is according to the present invention and the schematic cross-sectional view of the part of the intercooler of an embodiment;
Fig. 9 is the schematic cross-sectional view according to the part of the intercooler of further embodiment of this invention;
Figure 10 is the schematic cross-sectional view of the part of intercooler according to still a further embodiment; And
Figure 11 is a schematic cross-sectional view, is used for illustrating the example as the heat exchanger manufacturing process paste braze material applying step of correlation technique.
The specific embodiment
Now with reference to Fig. 1 to 6 embodiments of the invention are described.Fig. 1 shows the intercooler 100 of cooling air, and wherein, described air was pressurized in booster before being inhaled into engine, and intercooler 100 is as heat exchanger.
Intercooler 100 has core 120 and a pair of header tank (header tank) 110.Core 120 has pipe 122, the outer fin 121 that is used to dispel the heat and as the side plate 124 of core reinforcement.Pipe 122 and outer fin 121 are by alternately stacked, and side plate 124 is connected to and is arranged in the outer fin 121 that end (upper and lower end of Fig. 1) is located.Pipe 122, outer fin 121 and side plate 124 are integral by solder brazing.
The end 122a (the left and right end among Fig. 1) that header tank 110 is arranged in pipe 122 locates.Each header tank 110 122 is extending on the direction longitudinally perpendicular to pipe, and with the channel connection that is limited in the pipe 122.As shown in Figure 2, tube end 122a be inserted into the pipe patchhole 111 in, and with braze material 220 solder brazing to the pipe patchhole 111a that is formed on the header tank 110.
The shape of each pipe 122 is roughly flat tubulose, and interior fin (not shown) is brazing in the pipe 122.And, outer fin 121 by solder brazing to the outside of managing 122.Consider thermal conductivity etc., interior fin is become by for example copper with outer fin 121.Consider intensity, thermal conductivity etc., pipe 122 and side plate 124 are made by for example copper alloy.
As shown in Figure 2, each header tank 110 has: box main body 112; Central layer 111; And diapire member (not shown), described diapire member provides the bottom of header tank 110.Pipe patchhole 111a is formed on the central layer 111.Each parts of header tank 110 are formed by for example copper alloy plate.Central layer 111 and box main body 112 interconnect by for example solder brazing or welding (welding), thereby form case inner space 110a.
At least the surface of each parts of header tank 110 is made by copper, Cu alloy material or nickel material.For example, central layer 111 can be formed so that have full intensity by the stainless board member that has copper coating on the surface.
One of header tank 110 (for example, the right header tank among Fig. 1) is provided with inlet connecting portion (inlet joint) 113.Another header tank 110 (for example, the left header tank among Fig. 1) is provided with the discharge side that outlet connecting portion 114 inlet connecting portions 113 are attached to the booster (not shown), and outlet connecting portion 114 is attached to the suction side of engine (not shown).
Each header tank 110 narrows down along with the distance of distance inlet connecting portion 113 or outlet connecting portion 114.Just, the sectional area of each header tank 110 (case inner space 110a) reduces gradually along with the distance of distance inlet connecting portion 113 or outlet connecting portion 114, thereby air is roughly guided in pipe 122 equably.And support member (stay) 130, framing component that is used for intercooler 100 is fixed to vehicle body etc. is connected to the outer surface of header tank 110.
In order to make intercooler 100, by for example engaging (engaging) or using anchor clamps, each parts of core 120 are fixed together with central layer 111 in advance, are integral by solder brazing then.Then, box main body 112 and other necessary parts are soldered to central layer 111.Here, box main body 112 and miscellaneous part can weld but be integral by solder brazing.
Hereinafter, describe the syndeton and the method for attachment of central layer 111 and pipe 122 in detail with reference to Fig. 2 to 6.Fig. 3 shows right side from Fig. 2 when observing, central layer 111 and manage the schematic cross-sectional view of the connecting portion between 122.
As shown in Figure 2, central layer 111 has: main wall (connecting wall) 110b that is attached to core 120; And the pair of sidewalls 110c on main wall 110b end.Sidewall 110c is connected to the end of box main body 112.The end 111b of main wall 110b with respect to perpendicular to pipe 122 longitudinally direction (above-below direction among Fig. 2) tilt.Therefore, the end 111b of main wall 110b with the direction that separates at the center of core 120 on extend.
Just, main wall 110b comprises end 111c and clearance portion (end of main wall 110b) 111b.End 111c is positioned on the imaginary plane P1, and is attached to core 120.Clearance portion 111b tilts with respect to imaginary plane P1, promptly and imaginary plane P1 separate so that between clearance portion 111b and imaginary plane P1, provide space P2.
As shown in Figure 3, each pipe patchhole 111a extends to another clearance portion 111b from one of them clearance portion 111b by end 111c.When central layer 111 was attached to core 120, the border between end 111c and the clearance portion 111b was positioned at core 120.In other words, space P2 also is arranged in the core 120.
Then, will the braze welding method of central layer 111 and pipe 122 be described.At first, connect central layer 111 and core 120 with above-mentioned shape.Specifically, as shown in Fig. 4 A, tube end 122a is inserted into pipe patchhole 111a, thus predetermined fixed core 120 and central layer 111.As shown in Fig. 5 A, the 111e of hole flanging portion (burring portion) with inclined surface 111d is formed on around each pipe patchhole 111a.Inclined surface 111d tilts or bending with the pipe direction of insertion shown in the arrow in Fig. 5 A.
Therefore, tube end 122a is directed along inclined surface 111d when being inserted into pipe patchhole 111a.After this manner, tube end 122a is easily inserted among the pipe patchhole 111a.Step shown in Fig. 4 A and the 5A is corresponding to the predetermined fixed step.
Then, as shown in Fig. 4 B and 5B, use distributor 200, paste braze material 210 is applied to central layer 111 and manages connecting portion 122b between 122 as the braze material applying device.In the example shown in Fig. 4 B, distributor 200 is the general distributor with straight end 200 (straight tube shape) that uses.
Because central layer 111 has clearance portion 111b, thus space P2 is provided, as shown in Figure 2.Therefore, the straight end of distributor 200 can enter the space that is limited between outer fin 121 and the central layer 111, and arrives the inner position shown in the double dot dash line among Fig. 4 B.
In the example shown in Fig. 4 B, the end of distributor 200 can arrive the border between clearance portion 111b and the end 111c at least.Therefore, shown in the chain-dotted line among Fig. 6, can be along the part coating paste braze material 210 of connecting portion 122b, this part is included in the clearance portion 111b.
Therefore, paste braze material 210 can be applied on the wide relatively zone of connecting portion 122b.Step shown in Fig. 4 B and the 5B is corresponding to braze material applying step (being called applying step below).
In applying step, as shown in Fig. 5 B, paste braze material 210 is applied to the inclined surface 111d of the 111e of hole flanging portion and manages between 122 the outer surface.Braze material 210 is formed by the mixture of alloy powder and high poly-organic matter adhesive (binder).For example, alloy powder contains the copper (Cu) of 75wt%, the tin of 15wt% (Sn), the phosphorus (P) of the nickel of 5wt% (Ni) and 5wt%.The fusing point of braze material 210 is about 600 ℃.
After applying step, be placed in the reducing atmosphere stove (not shown) to carry out Connection Step by the assembly of the core 120 of predetermined fixed and central layer 111.Fig. 4 C and 5C illustrate this Connection Step.
Specifically, the assembly of this predetermined fixed is placed with and makes the core plane surface be basically parallel to horizontal direction.In other words, the assembly of this predetermined fixed be placed with make central layer 111 and pipe 122 vertically be basically parallel to horizontal direction.And in this case, the assembly of this predetermined fixed is placed with to make and applies the pars intermedia height of the part of braze material 210 than connecting portion 122b among the connecting portion 122b.Just, the assembly of this predetermined fixed is placed with and makes each connecting portion 122b be among Fig. 6 with on the direction that arrow is represented up and down.
And, reducing gas, as hydrogen (H
2) be introduced in the stove.The assembly of this predetermined fixed is heated under the temperature conditions between 600 ℃ and 800 ℃.
Therefore, by phosphorus and the reducing gas that braze material 210 contains, remove each parts of this predetermined fixed assembly, as central layer 111 with manage oxide-film on 122.And along with the fusing of the paste braze material 210 that only is applied to connecting portion 122b top, the braze material of fusing flows into the bottom that does not apply paste braze material 210 of connecting portion 122b.Just, utilize capillarity, braze material can be filled in the part of uncoated braze material in the connecting portion 122b.
In applying step, paste braze material 210 is applied to inclined surface 111d and manages between 122 the outer surface, as shown in Fig. 5 B.Therefore, in Connection Step, can fill central layer 111 effectively and manage connecting portion 122b between 122 with braze material 210.
In an embodiment, the linear expansion coefficient of central layer 111 is less than the linear expansion coefficient of pipe 122.Therefore, because the line differences in expansion when being heated in Connection Step, pipe 122 relatively moves towards central layer 111, has therefore reduced the gap of connecting portion 122b.But brazeability thereby raising.
And, because central layer 111 has clearance portion 111b, thus the distributor 200 with straight end not too can and pipe 122 between 121 interference of outer fin.In situation shown in Figure 11, be difficult to braze material is applied to the wide relatively zone of connecting portion, this is because distributor 200 can be interfered with outer fin 921.Otherwise, need be outside reducing with central layer 911 position adjacent places the layout area of fin 921.Yet this can cause reducing of area of dissipation.
In this embodiment, by using the space P2 that clearance portion 111b limited of central layer 111, paste braze material 210 is applied to zone wide relatively in the connecting portion 122b.Do not need to reduce the layout area of outer fin 121.And, after the predetermined fixed step, apply paste braze material 210 again.Therefore, do not need to worry that paste braze material 210 drops in the predetermined fixed step.Therefore, but under the situation that does not reduce heat-exchange capacity, improved brazeability.
In this embodiment, because intercooler 100 needs calorific intensity, compression strength etc., so but will on these surfaces, be had copper or copper alloy at least to improve brazeability by the parts of solder brazing.And the surface of central layer 111 and pipe 122 can be can't help copper and copper alloy and made, and is made by nickel.
Generally speaking, in Connection Step, its intensity of member of being made by copper or copper alloy reduces along with temperature.Therefore, in this embodiment, use the low relatively paste braze material 210 of fusing point, so that in Connection Step, set temperature relatively low.
The preferred braze material of fusing point between 550 ℃ to 700 ℃ of using is as paste braze material 210.When using fusing point to be lower than 550 ℃ braze material, be difficult to keep fully solder brazing intensity.On the other hand, when using fusing point to be higher than 700 ℃ braze material, need to improve the temperature in the Connection Step, cause by the reduction of the intensity of the parts of solder brazing.
And, the copper brazing material fragility (delicate) of fusing point between 550 ℃ to 700 ℃, and be difficult to be coated on by on the surface of the parts of soldering.Therefore, preferably use the paste braze material of fusing point between 550 ℃ to 700 ℃.
In applying step, paste braze material 210 only is applied on the described part of connecting portion 122b.In Connection Step, the assembly of predetermined fixed is placed with the feasible present position that has applied the part of paste braze material 210 and is higher than the remainder that does not apply braze material 210.Therefore, to dirty, and the gap of connecting portion 122b is filled by braze material 220 fully along with being melted for paste braze material 210.Therefore, even if paste braze material 210 by local coating, but still can keep brazeability.
In the example of Fig. 6, paste braze material 210 is applied to and is limited to a clearance portion 111b and manages connecting portion between 122, and central layer 111 and pipe 122 are placed with and make and applied the clearance portion 111b of braze material 210 than end 111c height.
And, because paste braze material 210 is not applied to the bottom of connecting portion 122b, so the paste braze material not too can be overflowed from the lower end of connecting portion 122b.Therefore, the solder brazing quality of connecting portion 122b improves, and the quantity of braze material reduces.And the situation that is applied to connecting portion 122b with paste braze material 210 is fully compared, and reduce the man-hour in the applying step.
(other embodiment)
In above embodiment, paste braze material 210 only is applied to the top of connecting portion 122b.Yet braze material 210 also can be applied to the bottom of connecting portion 122b.
The shape of central layer 111 is not limited in the example shown in Fig. 2, as long as main wall 110b separates with the center of core 120 towards its end.In other words, the shape of central layer 111 is not restricted, as long as the space that allows distributor 200 ends is provided.Fig. 7 and 8 shows the example of central layer shape.
In Fig. 7, central layer 311 has the main wall 310b that is attached to core 120.Main wall 310b general curved or have the cross section that is roughly arc.The clearance portion 311b that main wall 310b has the end 311c on imaginary plane P1 and separates with imaginary plane P1.Clearance portion 311b has crooked shape.In Fig. 8, central layer 411 has the main wall 410b that is attached to core 120.Main wall 410b has the cross section that is roughly V-arrangement.For example, main wall 410b have on imaginary plane P1 end 410c and at the inclined surface 411b of end 410c place's intersection.Simultaneously in these examples, provide to be used to the space that makes distributor 200 enter.
And, only being applied in paste braze material 210 under the situation on top of connecting portion 122b, central layer can be disposed in upside in Connection Step that side place has only clearance portion.For example, as shown in Figure 9, central layer 511 has the end 510c on imaginary plane P1 and tilts so that the clearance portion 511b in space to be provided with respect to dotted line P1.
And, always do not need two clearance portion that make like that shown in the image pattern 2 to have same inclination angle with respect to imaginary plane P1.For example, as shown in Figure 10, central layer 611 has end 610c and two clearance portion 611b, the 611c on imaginary plane P1, and these two clearance portion 611b, 611c tilt with different inclination angles with respect to imaginary plane P1.In Connection Step, the position that central layer 611 is placed with the clearance portion 611b that makes that the inclination angle is bigger is higher than clearance portion 611c.And central layer can have any other shape.
In above embodiment, make inclined surface 111d form by hole flanging, as shown in Fig. 5 B around the periphery of pipe patchhole 111a.Yet the method that forms inclined surface 111d is not limited in hole flanging.For example, inclined surface 111d can form by chamfering.
In above embodiment, pipe 122 is a flat tube, and connecting portion 122b has longitudinal axis on the direction longitudinally perpendicular to central layer 111.It seems that from aspects such as intensity this structure is effective.Yet the shape of pipe 122 is not limited in flat pattern.For example, pipe 122 can have the shape that is roughly circular cross section.
And, always do not need to manage 122 and outer fin 121 alternately stacked.Core 120 can have other structure.For example, core 120 can be configured such that pipe and plate fin intersect.
In above embodiment, the surface of central layer 111 and pipe 122 is made by copper, copper alloy or nickel at least.Yet the present invention can be applied to such heat exchanger: wherein will be by the parts of solder brazing, made by the material beyond copper removal or the nickel as central layer and pipe.
Exemplary embodiment of the present invention has more than been described.Yet the present invention is not limited in above embodiment, but can otherwise implement under the situation that does not break away from marrow of the present invention.
Claims (15)
1. the manufacture method of a heat exchanger comprises:
Form central layer (111,311,411,511,611), described central layer has the connecting wall (110b) that is used to be attached to pipe (122), wherein, described connecting wall comprises end (111c, 311c, 410c, 510c, 610c) and clearance portion (111b, 311b, 411b, 511b, 611b, 611c), described clearance portion and position, described end imaginary plane (P1) thereon separates, and pipe patchhole (111a) forms described end of leap and described clearance portion;
By the end (122a) of described pipe being inserted the pipe patchhole of described central layer, and described central layer of predetermined fixed and pipe (122);
By braze material applying device (200) paste braze material (210) is applied to connecting portion (122b) between described central layer and the described pipe; And
Heating central layer of predetermined fixed and pipe, with the described connecting portion of solder brazing.
2. the method for claim 1, wherein
Described formation step is included on each periphery of managing patchhole and forms inclined surface (111d), and described inclined surface tilts with respect to the direction vertical with described imaginary plane, and
In described applying step, described paste braze material is applied between the outer wall of described inclined surface and described pipe.
3. method as claimed in claim 1 or 2, wherein, described pipe has and is roughly flat tubular form.
4. method as claimed in claim 1 or 2, wherein, each in described central layer and the described pipe has one of them outer surface made by copper, copper alloy and nickel.
5. method as claimed in claim 1 or 2, wherein, the fusing point of described paste braze material is between 550 and 700 ℃.
6. method as claimed in claim 1 or 2, wherein
In described applying step, described paste braze material is applied to the part of each connecting portion, and
In described heating steps, described central layer is arranged such that the position of the part that has applied described paste braze material is higher than the remainder of each connecting portion.
7. method as claimed in claim 1 or 2, wherein, the linear expansion coefficient of described central layer is less than the linear expansion coefficient of described pipe.
8. method as claimed in claim 1 or 2, wherein
In described applying step, enter in the space (P2) that is limited between described clearance portion and the described imaginary plane by the end that makes described braze material applying device, and described paste braze material is applied to the part of described connecting portion.
9. method as claimed in claim 1 or 2, wherein
In described applying step, described paste braze material is applied to the part of described connecting portion, and this part is formed on the described clearance portion, and
In described heating steps, described central layer is arranged such that the position of described clearance portion is higher than described end.
10. method as claimed in claim 1 or 2, wherein, described braze material applying device has straight end.
11. method as claimed in claim 1 or 2, wherein, described predetermined fixed step is included between the described pipe arranges fin.
12. a heat exchanger comprises:
Core (120) with pipe (122) and fin (121); And
Has central layer (111,311,411,511,611) header tank (110), described central layer have the connecting wall (110b) that is formed with pipe patchhole (111a), wherein, the end of described pipe (122a) is contained in the described pipe patchhole and with described pipe patchhole and is brazing in, wherein, described connecting wall (110b) comprises end (111c, 311c, 410c, 510c, 610c) and clearance portion (111b, 311b, 411b, 511b, 611b, 611c), described end is located on the imaginary plane (P1), and described clearance portion and described imaginary plane separate.
13. heat exchanger as claimed in claim 12, wherein
Described pipe patchhole extends across described clearance portion and described end, and
Described clearance portion is positioned in the described core at least in part.
14. as claim 12 or 13 described heat exchangers, wherein
Described imaginary plane is vertical perpendicular to described pipe, and
Described clearance portion (111b, 411b, 511b, 611b 611c) tilts with respect to described imaginary plane.
15. as claim 12 or 13 described heat exchangers, wherein, described clearance portion (311b) has crooked wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006021666A JP2007205585A (en) | 2006-01-31 | 2006-01-31 | Manufacturing method of heat exchanger, and heat exchanger |
| JP2006021666 | 2006-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101011767A true CN101011767A (en) | 2007-08-08 |
Family
ID=38320882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100044404A Pending CN101011767A (en) | 2006-01-31 | 2007-01-22 | Method of manufacturing heat exchanger and heat exchanger |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070175620A1 (en) |
| JP (1) | JP2007205585A (en) |
| CN (1) | CN101011767A (en) |
| DE (1) | DE102007004131B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113924449A (en) * | 2019-05-29 | 2022-01-11 | 株式会社电装 | Heat exchanger |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI120050B (en) * | 2004-06-03 | 2009-06-15 | Luvata Oy | Method for reducing and bonding metal oxide powder to a heat transfer surface and heat transfer surface |
| JP2010112695A (en) * | 2008-10-07 | 2010-05-20 | Showa Denko Kk | Evaporator |
| US8177932B2 (en) * | 2009-02-27 | 2012-05-15 | International Mezzo Technologies, Inc. | Method for manufacturing a micro tube heat exchanger |
| DE102009012509A1 (en) * | 2009-03-10 | 2010-09-16 | Modine Manufacturing Co., Racine | Heat exchanger e.g. charge air cooler, for internal combustion engine, has tubular plate comprising four edge sides in which one of edge sides is flexible and establishes operative connection with end portion of side part at rear side |
| CN103170807A (en) * | 2013-04-12 | 2013-06-26 | 惠州东风易进工业有限公司 | Production process and system for automotive radiators |
| DE102015209130A1 (en) * | 2015-05-19 | 2016-11-24 | Mahle International Gmbh | Heat exchanger |
| JP2017044436A (en) * | 2015-08-28 | 2017-03-02 | ダイキン工業株式会社 | Heat exchanger |
| US11098962B2 (en) * | 2019-02-22 | 2021-08-24 | Forum Us, Inc. | Finless heat exchanger apparatus and methods |
| JPWO2021054484A1 (en) * | 2019-09-20 | 2021-03-25 | ||
| DE102021208717A1 (en) | 2021-08-10 | 2023-02-16 | Mahle International Gmbh | heat exchanger |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5098006A (en) * | 1991-07-15 | 1992-03-24 | Carrier Corporation | Header jig |
| JP3445905B2 (en) * | 1995-09-30 | 2003-09-16 | ハラ クリメイト コントロール コーポレイション | Heat exchanger and method for manufacturing header pipe used therein |
| US6247232B1 (en) * | 1999-03-10 | 2001-06-19 | Transpro, Inc. | Method of manufacturing a welded heat exchanger with grommet construction |
| DE19922673C1 (en) * | 1999-05-18 | 2000-08-31 | Erbsloeh Ag | Heat exchanger for automobiles in extruded aluminum uses impressed barrier in profile tube to guard against solder migration away from join. |
| JP3899986B2 (en) * | 2002-01-25 | 2007-03-28 | 株式会社デンソー | How to apply brazing material |
| JP2005118826A (en) * | 2003-10-16 | 2005-05-12 | Denso Corp | Brazing method |
-
2006
- 2006-01-31 JP JP2006021666A patent/JP2007205585A/en not_active Withdrawn
-
2007
- 2007-01-22 CN CNA2007100044404A patent/CN101011767A/en active Pending
- 2007-01-26 DE DE102007004131A patent/DE102007004131B4/en not_active Expired - Fee Related
- 2007-01-30 US US11/699,975 patent/US20070175620A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113924449A (en) * | 2019-05-29 | 2022-01-11 | 株式会社电装 | Heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007205585A (en) | 2007-08-16 |
| US20070175620A1 (en) | 2007-08-02 |
| DE102007004131B4 (en) | 2008-11-27 |
| DE102007004131A1 (en) | 2007-09-06 |
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Open date: 20070808 |