CN106247821A - Wave-shaped fins formula heat exchanger and manufacture method thereof - Google Patents

Wave-shaped fins formula heat exchanger and manufacture method thereof Download PDF

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Publication number
CN106247821A
CN106247821A CN201610401711.9A CN201610401711A CN106247821A CN 106247821 A CN106247821 A CN 106247821A CN 201610401711 A CN201610401711 A CN 201610401711A CN 106247821 A CN106247821 A CN 106247821A
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CN
China
Prior art keywords
flat tube
adhesive
fin
heat exchanger
liquid collecting
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CN201610401711.9A
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Chinese (zh)
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不公告发明人
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Individual
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Individual
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Priority to CN201610924769.1A priority Critical patent/CN106524785A/en
Publication of CN106247821A publication Critical patent/CN106247821A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/04Heat-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
    • F28D1/053Heat-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
    • F28D1/05316Assemblies of conduits connected to common headers, e.g. core type radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F11/00Arrangements for sealing leaky tubes and conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081Heat exchange elements made from metals or metal alloys
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/04Arrangements for sealing elements into header boxes or end plates
    • F28F9/16Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/162Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using bonding or sealing substances, e.g. adhesives
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00Fastening; Joining
    • F28F2275/04Fastening; Joining by brazing

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention discloses a kind of heat exchanger and manufacture method thereof, it is characterised in that including: some flat tubes, some groups of fins and at least two liquid collecting cavity;Wherein, described flat tube and described fin are arranged the most separately, and, bonding by the first adhesive layer between described flat tube with described fin;Offering several slot holes being arranged in order on the sidewall of described liquid collecting cavity, the two ends of described flat tube are inserted in corresponding slot hole respectively, and, by the second adhesive layer adhering and sealing between end and the described slot hole of described flat tube;Or described liquid collecting cavity is by the termination stratification of described flat tube, and, by the second adhesive layer adhering and sealing between the termination of the most adjacent two described flat tubes.This heat exchanger makes between flat tube and fin, all obtain stably firm adhesive effect between flat tube and liquid collecting cavity, fully ensures that the sealing intensity between flat tube and liquid collecting cavity, moreover it is possible to greatly improve the heat exchange property of heat exchanger.

Description

Wave-shaped fins formula heat exchanger and manufacture method thereof
Technical field
The present invention relates to heat exchanger, be specifically related to flat tube and the wave-shaped fins formula heat exchanger using adhesive to connect completely And manufacture method.
Background technology
Heat exchanger is widely used heat-exchange apparatus in the products such as the vehicles, Communication Equipment, air-conditioning.Existing heat exchange Device (such as flat tube and fin type heat exchanger) is generally made up of flat tube, fin and header, and, at traditional flat tube and fin type In heat exchanger method, between flat tube and fin, between flat tube and header, all use the mode welding fabrication of soldering.But It is that this welding manner also exists high consumptive material, highly energy-consuming, multiple operation, production efficiency is low, scrappage is high problem, and, soldering The high temperature produced can cause the evaporation of corrosion resistant material (such as zinc coat), it addition, the height required for composite bed aluminium alloy brazing Temperature also often results in the problems such as corrode.It addition, also there is part prior art to use part adhesive, the mode of part soldering, but, pricker High temperature used by weldering, it is easy to conducted to adhesive by flat tube, thus bonded adhesives is produced infringement;High temperature used by soldering, It is easily caused aluminum alloy surface oxidation, thus damages the cementability of aluminum alloy surface;Additionally, soldering need to use particular aluminum alloy material Material, cost is higher.
The deficiency existed for above-mentioned brazing mode, Chinese patent CN 103148718 A discloses a kind of Thermal Performance of Micro Channels Device, fixes, including: header, the some flat tubes being connected and processes through surface and the fin fixing with flat tube with header; Wherein, fin uses interference fit with flat tube and is connect by conductive structure is gluing;The two ends of flat tube are for arranging the position of extension fixture Putting the aptery section of formation, this is aptery, and section is filled with the electrochemistry corruption that sponge or plastics are formed to prevent fin from contacting with header Erosion.
In above-mentioned micro-channel heat exchanger, first, between flat tube and header, have employed cold-extrusion technology sealing, this work It is big that skill has enforcement difficulty, cost height, and the longest, operation is slow, the problem that flat tube is inadequate with the junction sealing intensity of header. Secondly, when installing fin, needing to use expanding unit, it is low that this results in production efficiency, and, expanding unit makes after withdrawing There is " aptery section " between adjacent flat tube, reduce the heat exchange property of heat exchanger on the whole.
It addition, about the assembling mode of fin in above-mentioned micro-channel heat exchanger Yu flat tube, first complete whole fin and flat The assembling of pipe, is then coated with heat conduction viscose on a flat tube line with fin contacts.This results in heat conduction viscose and is difficult to arrive Flat tube approximate centerline, so that the integral adhesive intensity of micro-channel heat exchanger and heat conductivility are relatively low.
Summary of the invention
The present invention analyses in depth potential defect and the reason of various prior art, and carries out the most complete on the whole New design, it is proposed that the most gluing solution, its technique effect is much larger than the simple superposition of various piece bonding technique effect. In addition, the present invention also provides for various preferred version, and to realize sealing, adhesive strength, heat transfer efficiency, anticorrosion be durable, light weight The more excellent technique effect of the aspects such as change, production efficiency.
The invention provides a kind of heat exchanger, including: flat tube, fin and liquid collecting cavity;Wherein, flat tube and fin are alternate Every setting, and, bonding by the first adhesive between flat tube with fin;Several slot holes are offered on the sidewall of liquid collecting cavity, The two ends of flat tube are inserted in corresponding slot hole respectively, and, bonding by the second adhesive between the two ends of flat tube with slot hole Seal.
Additionally, it is provided that a kind of heat exchanger, including: flat tube, fin and liquid collecting cavity;Wherein, flat tube and fin set separately Put, and, bonding by the first adhesive between flat tube with fin;Liquid collecting cavity by the termination stratification of flat tube, and, the most adjacent By the second adhesive adhering and sealing between the termination of two flat tubes.
Or, more specifically, it is provided that a kind of heat exchanger, including: some flat tubes, some groups of fins and at least two Individual liquid collecting cavity;
Wherein, described flat tube and described fin are arranged the most separately, and, by the first glue between described flat tube and described fin Adhesive layer is bonding;
Offering several slot holes being arranged in order on the sidewall of described liquid collecting cavity, the two ends of described flat tube are inserted respectively accordingly Slot hole in, and, by the second adhesive layer adhering and sealing between two ends and the described slot hole of described flat tube;Or, institute State liquid collecting cavity by the termination stratification of described flat tube, and, gluing by second between the termination of the most adjacent two described flat tubes Oxidant layer adhering and sealing.
Wherein, after adhesive coated solidification, cambium layer, i.e. form adhesive layer.Layer in the above-mentioned adhesive layer of the present invention, There is broader implication, including the layer of uniformly continuous, also include heterogeneous or desultory layer.
Secondly, present invention also offers a kind of heat exchanger method, comprise the following steps:
Step one, flat tube and fin are spaced arrange, and by the first adhesive, described flat tube is bondd with described fin, the first glue Stick be arranged on the outer surface of the described flat tube of described fin joint on or be arranged at the crest of described fin;
Step 2, the second adhesive is set on the outer surface at described flat tube two ends or at the slot hole of described liquid collecting cavity, will Described flat tube two ends are inserted in the slot hole of correspondence respectively, and are glued with described slot hole by described flat tube by described second adhesive Connect solidification to seal, form heat exchanger.
More specifically, in a kind of embodiment of described manufacture method, including:
Step one, with the outer surface of the flat tube of fin joint on or the first adhesive is set at the crest of fin;
Step 2, flat tube and fin are sequentially arranged at intervals setting, and by the first adhesive, flat tube is bonding with fin, and formation is changed Hot device core body;
Step 3, the second adhesive is set on the outer surface at flat tube two ends or at the slot hole of liquid collecting cavity, by flat tube two ends Insert respectively in the slot hole of correspondence, and by the second adhesive, bonding with slot hole for flat tube solidification is sealed, form heat exchanger.
Further, before step one, the two ends outer surface of flat tube is polished to form rough surface.
Again, present invention also offers another kind of heat exchanger method, comprise the following steps:
Step one, the second adhesive is set on the outer surface at flat tube two ends or at the slot hole of liquid collecting cavity, by the two of flat tube End inserts in the slot hole of correspondence respectively, and by the second adhesive by the slot hole adhering and sealing of flat tube Yu liquid collecting cavity, is formed flat Pipe liquid collecting cavity assembly;
Step 2, with the outer surface of the flat tube of fin joint on or the first adhesive is set at the crest of fin;
Step 3, between two adjacent flat tubes, place fin, and by the first adhesive by bonding with fin for flat tube solidification, shape Become heat exchanger.
Above, the solidification of the first adhesive and the solidification of the second adhesive, can i.e. solidify after respective applying glue respectively, also Can solidify together after the two applying glue completes.
In above manufacture method, fin is preferably wave-shaped fins.After the first adhesive applying glue, preferably by wave-shaped fins with Flat tube interval is arranged alternately closed assembly successively, and apply on the flat tube or side plate of outermost both sides clamping force by middle fin and Flat tube compresses and connects, and forms the sandwich of sandwich style.Wherein said sandwich is not limited to 2 or 3 flat tubes, even may be used With more.So so that assemble between flat tube with fin simpler, is connected tightr and heat-conducting effect is more preferable.
In order to improve the adhering and sealing intensity of the second adhesive between flat tube and liquid collecting cavity further, it is preferable that upper After stating insertion slot hole, flat tube two ends, Counterboring apparatus is utilized to insert in flat tube pipe so that with slot hole after the expansion of the flat tube mouth of pipe Bonding tighter.Wherein, described Counterboring apparatus is preferably the wedge insert matched with flat tube nozzle sizes.
Can also preferably, the opening in liquid collecting cavity slot hole is funnel-form (in other words, cross section, slot hole is " V " shape);With Make the gap that adhesive is sufficient filling with between slot hole and flat tube, and increase sealing area and reach to increase the effect of sealing intensity Really.Wherein it is highly preferred that funnelform big mouth is towards inside liquid collecting cavity, and osculum is towards outside liquid collecting cavity;So can be in liquid collecting Intracavity side carries out applying glue.
Wherein, described liquid collecting cavity is liquid collecting or the general name of separatory parts on heat exchanger, including the afflux of parallel-flow heat exchanger Pipe (or claiming collector tube), the hydroecium of radiator (radiator) and the cavity of main leaf composition, tube-strip heat exchanger two ends liquid in-out The liquid collecting cavity that joint and stacked flat pipes of heat exchanger termination are formed.
Preferably, heat exchanger includes two liquid collecting cavities, i.e. feed liquor liquid collecting cavity and goes out liquid liquid collecting cavity;The two liquid collecting cavity is permissible It is split, it is also possible to be integrated in together.Certainly, sometimes can also to comprise two or more arranged side by side for feed liquor liquid collecting cavity Sub-feed liquor liquid collecting cavity;Go out liquid liquid collecting cavity and can also include that two or more sons arranged side by side go out liquid liquid collecting cavity.
It addition, wherein fin is alternatively referred to as wing band or heat-radiation belt, slot hole is alternatively referred to as flat tube groove.
Flat tube of the present invention, including single hole degree of lip-rounding pipe, B shape folded tube, the porous mouth organ type pipe of extruding, but is preferably Do not include the flat tube of excessive glue slot form as described in CN201310348776.8.
Wherein, adhesive could also say that binding agent (adhesive).Described adhesive include paste glue, aqueous glue, Powder glue etc.;Re-use it is of course also possible to described adhesive is previously formed film like, such as paste adhesive is coated on In fiber cloth, then it is used further to flat tube and the fin of bonding heat exchanger.
Further, described first adhesive is heat-conducting glue.
Further, described first adhesive is conducting resinl.
Further, containing heat filling in described first adhesive.
Further, described first adhesive is by the mixing material including viscosity base material and heat filling.Institute in other words State the first adhesive to be mainly mixed by viscosity base material and heat filling.Or described first adhesive layer by viscosity base material and Heat filling is mixed.Certainly, described first adhesive also can only have viscosity base material composition.Wherein, viscosity of the present invention Base material also can claim adhesive base material, refers to add the adhesive before heat filling.So, viscosity base material of the present invention can Being only to include adhesive matrix resin, it is also possible to be to include adhesive matrix resin, firming agent, other auxiliary agents etc.;But Do not include heat filling.But it is preferably, containing heat filling in described first adhesive.In other words, further, described first Adhesive is doped with heat filling, to improve the heat-conductive characteristic of the first adhesive.
Further, described heat filling is the conductive and heat-conductive filler with conducting function.So, led by control conduction The proportioning of hot filler, so that the first adhesive not only has good heat conduction function, but also has certain conduction merit Energy.
Or, further, described heat filling is nonconducting heat filling and/or conductive and heat-conductive filler.
Further, described heat filling is ceramic powders.Further, heat filling is by the ceramics of different-grain diameter End is mixed to form.
Further, described heat filling is alumina powder, silicon oxide powder, Zinc oxide powder, aluminium nitride powder, nitrogen Change the one in boron powder, silicon carbide powder, aluminium powder, copper powder, zinc powder, argentum powder, nikel powder, iron powder, zinc powder, graphite powder, carbon powder Or several combination.It is further preferable that described heat filling is aluminium powder.The shape of described aluminium powder can be dendroid or ball thorn Shape or spherical or drops or hemisphere shape.
Further, it is 0.1%~5% that described heat filling accounts for the percentage by weight of the first adhesive, or 5%~10%, Or 10%~20%, or 20%~30%, or 30%~40%, or 40%~50%, or 50%~60%, or 60%~ 70%, or 70%~80%, or 80%~99%.Wherein, preferred percentage by weight is 50% ~ 60%.
Further, described conductive and heat-conductive filler is mixed to form by the graphite powder of different-grain diameter;Or conductive and heat-conductive filler by The metal powder of different-grain diameter is mixed to form;Or conductive and heat-conductive filler is mixed by the graphite powder of different-grain diameter and the metal powder of different-grain diameter Close and formed.
Filler above by different-grain diameter is arranged in pairs or groups, and advantageously forms heat-conductive bridges and/or conducting bridge, improve heat conduction and/or Electrical efficiency.
Further, the particle diameter of described heat filling is 1 ~ 3 micron, or 3 ~ 5 microns, or 5 ~ 10 microns, or 10 ~ 15 is micro- Rice, or 15 ~ 20 microns, or 20 ~ 30 microns, or 30 ~ 50 microns.
Further, if the first adhesive does not include heat filling, described first adhesive be acrylic tackifier, Any one in epoxyn, polyurethane adhesive, Quick-drying Adhesive, anaerobic adhesive and organic silicon adhesive Kind or several combination.If the first adhesive includes heat filling, then the viscosity base material of the first adhesive is acrylic compounds glue Appointing in stick, epoxyn, polyurethane adhesive, Quick-drying Adhesive, anaerobic adhesive and organic silicon adhesive Anticipate one or several combination.
Wherein, described adhesive can be one-component, it is also possible to be double-component.The solidification of adhesive, can be normal Temperature solidification, it is also possible to be heating cure.Certainly, in the case of other conditions are suitable, preferably normal temperature cure and fast setting, this Sample can energy-conservation and quickening rhythm of production.In other words, further, the first adhesive includes adhesive material, described first glue The adhesive material of stick is acrylic tackifier, epoxyn, polyurethane adhesive, Quick-drying Adhesive, anaerobic adhesive Any one or several combination in stick and organic silicon adhesive.
Wherein, organic silicon adhesive includes various paste or aqueous organosilicon silica gel, organic siliconresin etc..
Further, the thickness of the first adhesive is: 0 to 1 micron, or 1 micron to 5 microns, or 5 microns to 10 microns, Or 10 microns to 20 microns, or 20 microns to 50 microns, or 50 microns to 100 microns, or 100 microns to 200 microns.Wherein The thickness of one adhesive is more preferably 20 microns to 50 microns.
Further, the first adhesive is formed in the way of coating or be smooth.
Further, the coating method of the first adhesive be spraying, brushing, roller coat, dip-coating, some glue, screen printing, roller coating, The combination of one or several in electrophoresis and blade coating.Wherein more preferably brush or roller coat.
Further, the second adhesive includes adhesive material, and the adhesive material of described second adhesive is acrylic compounds In adhesive, epoxyn, polyurethane adhesive, Quick-drying Adhesive, anaerobic adhesive and organic silicon adhesive Any one or several combination.In other words, described second adhesive layer be acrylic tackifier, epoxyn, Any one or several combination in polyurethane adhesive, Quick-drying Adhesive, anaerobic adhesive and organic silicon adhesive.
Above, described adhesive material is alternatively referred to as viscosity base material, and both state equivalent.
Further, fin is extended to the outside of another liquid collecting cavity along the length direction of flat tube by the lateral wall of a liquid collecting cavity Wall;It is highly preferred that often group fin is all extended to outside another liquid collecting cavity along the length direction of flat tube by the lateral wall of a liquid collecting cavity Sidewall.
Further, the metal part of flat tube and/or fin and/or liquid collecting cavity is made up of monolayer aluminum alloy materials.More Preferably, the metal part of flat tube, fin and liquid collecting cavity is made by monolayer aluminum alloy materials.
Further, side plate outside outermost fin and it is positioned at bonding by the first adhesive.
Further, liquid collecting cavity is provided with flange at slot hole.
Further, between flat tube and slot hole it is interference fit.
Further, the flat tube of the part contacted with slot hole has rough surface.Can also be further, On the slot hole contacted with flat tube, there is rough surface.Generally, extruding flat tube or folding flat tube outer surface are relative smooth, In order to further enhance adhesive sealing intensity between flat tube and slot hole, preferably carry out at the roughenings such as polishing at flat tube two ends Reason.Preferably, above-mentioned contact surface roughness (Ra) numerical value is more than 25, more preferably larger than 50.
Further, fin is wave-shaped fins, and, the first adhesive is arranged between flat tube and the crest of fin;Or First adhesive is arranged between the crest skirt section of flat tube and fin.Wherein, described wave-shaped fins refers to fin side view class Like the fin of waveform, including similar sinusoidal waveform fins, triangular waveform fin, U-shaped wave-shaped fins and square waveform fin Deng.
Further, described fin is wave-shaped fins.Further, described wave-shaped fins be sinusoidal waveform fins or Triangular waveform fin or U-shaped wave-shaped fins or Great Wall flute profile fin.
Further, described liquid collecting cavity is bonded with inlet tube and/or outlet.
Further, liquid collecting cavity is made up of all aluminium alloy or all-plastic is made or aluminium alloy and plastic composition are made.Collection Sap cavity can be global formation, it is also possible to be that split left and right is synthetically formed.Such as, the header of parallel flow condenser is complete Constructed of aluminium, the cavity that the plastic water chamber of car radiator and aluminium alloy mainboard (or claiming main leaf) form also is a kind of liquid collecting Chamber.Certainly, due to without high temperature brazing technique, therefore it is highly preferred that liquid collecting cavity uses all-plastic to make.This all-plastic liquid collecting cavity Also having low cost and light-weighted technique effect, such as liquid collecting cavity uses plastic water chamber and plastic main panel to make.
Further, the material of described flat tube is metal material.It is preferably the metal material that heat conductivity is good.More preferably Aluminum alloy materials.
Further, the material of described fin is metal material.It is preferably the metal material that heat conductivity is good.More preferably Aluminum alloy materials.
Further, the material of described flat tube is 1 line aluminium alloy or 3 line aluminium alloys or 4 line aluminium alloys or 5 are that aluminum closes Gold or 6 line aluminium alloy materials.
Further, the wall thickness of described flat tube is 0.1 ~ 1.0mm.Preferably, the wall thickness of described flat tube is 0.1 ~ 0.5mm. It is highly preferred that the wall thickness of described flat tube is 0.12 ~ 0.20mm.
Further, the material of described fin is 1 line aluminium alloy or 3 line aluminium alloys or 4 line aluminium alloys or 5 are that aluminum closes Gold or 6 line aluminium alloy materials.
Further, the thickness of described fin aluminium foil is 0.01 ~ 0.3mm.Preferably, described thickness is 0.02 ~ 0.2mm. It is highly preferred that described thickness is 0.05 ~ 0.1mm.
Further, described flat tube is formed by base material aluminium alloy and tactile water layer aluminium alloy compound, and tactile water layer is positioned at flat tube Side contact heat-exchanging liquid medium, the corrosion potential touching water layer is defeated by the corrosion potential of base material.Wherein, heat exchanging liquid medium is permissible It is water or the anti-icing fluid being mainly made up of ethylene glycol and water.
Further, the corrosion potential of described fin is defeated by the corrosion potential of described flat tube.Or, if flat tube is by base material aluminum Alloy and tactile water layer aluminium alloy compound are formed, and the corrosion potential of fin is defeated by the corrosion potential of flat tube base material aluminium alloy.Preferably, The corrosion potential difference of fin and flat tube is between 50mV ~ 300mV;It is more highly preferred to epd between 100mV ~ 150mV.Current potential Difference is too small will cause fin protected effect the best, and potential difference is crossed senior general and caused fin the most preferentially to corrode.
The good effect that the present invention has on the basis of the above is:
In the heat exchanger that the present invention provides, the first adhesive and the function of the second adhesive and performance requirement are incomplete same , identical adhesive can be used all to cover the requirement of the two, it is preferable to employ different adhesive meets the two respectively Requirement.Preferably employ the first bonding flat tube of adhesive and the fin with good heat conductive performance that with the addition of heat filling, and Preferably employ the slot hole having on the second adhesive adhering and sealing flat tube of good bonding intensity and liquid collecting cavity so that flat tube and All obtain stably firm adhesive effect between fin, between flat tube and liquid collecting cavity, and can fully ensure that flat tube and liquid collecting cavity it Between sealing intensity.It addition, fin is extended to the lateral wall of another liquid collecting cavity by the lateral wall of a liquid collecting cavity, such structure can Eliminate the aptery section generally existed in existing heat exchanger, thus greatly improve the heat exchange property of heat exchanger.
First adhesive mainly plays thermal interfacial material TIM(Thermal Interface Material) effect, use Calking between fin and flat tube and conduction of heat;Second adhesive mainly plays the effect that contact surface seals.Therefore preferably Ground, the first adhesive has high thermal conductivity coefficient and heat conductivility;Second adhesive has high sealing adhesive strength, the most preferably has Very high shear strength and hot strength.
The heat exchanger method that the present invention provides uses and first coats the first adhesive pressing flat tube again and the method for fin, Without unnecessary equipment such as " cold extrusion devices " and " expanding unit " in traditional handicraft, low cost of manufacture, manufacture faster side Just, it is suitable for high-volume fast pace to produce.And can ensure that the first adhesive coated between flat tube with fin is uniform, bonding good Well, contact is fully;It addition, this manufacture method makes the space that fin is full of between flat tube and liquid collecting cavity, eliminate aptery section, therefore Without leaking out hidden danger, heat exchange area is fully utilized, and solves the etching problem that header exists.Thus obtain more Preferably heat transfer effect.
In the flat tube and fin type heat exchanger that the present invention provides, liquid collecting cavity material, except using traditional aluminium alloy material Outside material, more preferably use all-plastic material, such as polypropylene PP or nylon PA, more light-weighted technology so will be brought to imitate Really.Additionally, due to plastics can pass through injection molded, plastics liquid collecting cavity can be accomplished more complicated more more reliable than aluminium alloy liquid collecting cavity Molding structure, such as, liquid collecting cavity slot mouth plastics flange is wider, is conducive to improving the sealing between liquid collecting cavity and flat tube strong Degree.
Additionally, present invention preferably employs wave-shaped fins, such as sine waveform fin or triangular waveform fin or U-shaped ripple Shape fin or square waveform fin, wherein rectangular fin also can claim Great Wall serrated fin;The upper and lower crest of these wave-shaped fins and ripple Certain extruding force can be applied at paddy and be not damaged by.So, many group fins can be spaced with flat tube the most successively with many Carry out closed assembly, form the heat exchanger core body of the structure of similar sandwich style, and outermost two with flat tube or side plate on apply one Fixed fastening force by bonding for the heat exchanger core body of sandwich style firmly, this makes whole manufacturing process easier, and fin is with flat Connection between pipe is tightr, heat conduction is more efficient.It addition, after corrugated fins and flat tube closed assembly, flat tube can be supported by fin, Thus reduce the requirement of strength that flat tube two ends Dependency Set sap cavity supports.
No matter it is between flat tube and fin or between flat tube and liquid collecting cavity, entirely present invention employs gluing side Formula.This avoids part bonding portion and welds the defect brought, it is to avoid high temperature during welding is to original bonding negative shadow Ring;Avoid the aluminum alloy surface oxidation that the high temperature used by soldering is caused, thus damage the cementability of aluminum alloy surface;Additionally, It also avoid soldering and need to use particular aluminum alloy material and the cost that causes is higher.It addition, flat tube of the present invention, fin All preferably employ the structure of maturation with liquid collecting cavity, this not only contributes to and prior art rapid abutting joint, it is to avoid use the glue groove that overflows The cost brought with the special construction such as injecting glue groove increases, and it also avoid the assembling difficulty and poor efficiency using aciculiform fin to be brought Rate.
What deserves to be explained is, relative to prior art, the present invention provide not only the complete gluing assembling about heat exchanger this One new basic solution, additionally provides the sides such as sealing adhesive strength, heat transfer efficiency, anticorrosion be durable, lightweight, production efficiency The solution of face deep-seated problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of heat exchanger in embodiments of the invention one;
Fig. 2 is the sectional view in Fig. 1 along hatching B-B gained;
Fig. 3 is the enlarged drawing of letter A corresponding part in Fig. 1;
Fig. 4 is the bonding schematic diagram of flat tube and fin in embodiments of the invention four;
Fig. 5 is the structural representation of heat exchanger in embodiments of the invention five;
Fig. 6 is the structural representation of flat tube in embodiments of the invention five;
Fig. 7 is the structural representation of heat exchanger in embodiments of the invention six;
Fig. 8 is the present invention several wave-shaped fins schematic diagram.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, real below Execute heat exchanger and manufacture method thereof that example combines accompanying drawing and provide the present invention to be specifically addressed.
Heat exchanger of the present invention refers to the flat tube and fin type heat exchanger using flat tube and fin interval to arrange, extensively General it is applied to the vehicles, communications service, air-conditioning, field of petrochemical industry.This flat tube and fin type heat exchanger includes following pipe Band heat exchanger, parallel-flow heat exchanger and stacked heat exchanger etc..
<embodiment one>
As it is shown in figure 1, the flat tube and fin type heat exchanger that the present embodiment provides includes: some flat tubes 1, some fin 2(or title Wing band), two liquid collecting cavities (or claim collector tube or claim header) 3.Preferably, side plate 4 outside two are also included.Wherein, flat tube 1, The metal part of fin 2 and liquid collecting cavity 3 is made by monolayer aluminum alloy materials.Abandon solder expensive in prior art multiple Closing layer aluminum alloy materials, so that the manufacturing cost of flat tube and fin type heat exchanger is lower, the such as cost of raw material can reduce 30%~40%。
Concrete, flat tube 1 and fin 2 are arranged the most separately, and, by the first adhesive layer between flat tube 1 and fin 2 5 is bonding.Flat tube 1 includes single hole degree of lip-rounding pipe, B shape folded tube, the porous mouth organ type pipe etc. of extruding.It addition, flat tube 1 can be micro-logical Road flat tube, passage aisle flat tube and other sectional dimensions are squarish or pancake pipe.
Liquid collecting cavity 3 on the right side of in Fig. 1 offers inlet 31 and liquid outlet 32, inlet 31 and liquid outlet 32 and both can offer On same liquid collecting cavity 3, certainly, inlet 31 and liquid outlet 32 can also be opened on different liquid collecting cavities 3 respectively.Feed liquor Mouthfuls 31 and liquid outlet 32 can be with liquid collecting cavity 3 integrated molding or gluing that be connected on liquid collecting cavity 3 or be welded in advance On liquid collecting cavity 3.
Liquid collecting cavity in the present embodiment 3 is made up of all aluminium alloy or all-plastic is made or aluminium alloy and plastic composition system Become.It addition, as shown in Figure 1 to Figure 3, the sidewall of liquid collecting cavity 3 offers several slot holes 33 being arranged in order, and, flat The two ends of pipe 1 are respectively by the second adhesive layer 7 and corresponding slot hole 33 adhering and sealing.
Two outside side plates 4 lay respectively at the outside of an outermost layer fin 2, and, it is positioned at outermost fin 2 and Outside side plate 4 between bonding by the first adhesive layer 5.
First adhesive layer 5 is mixed by viscosity base material and heat filling.Wherein, heat filling accounts for the first adhesive layer The percentage by weight of 5 is 50%~60%.
In the present embodiment, heat filling is preferably ceramic powders.As preferred technical scheme, ceramic powders is nitrogen Change aluminium powder.Viscosity base material is preferably organic silicon adhesive.
In the present embodiment, the first adhesive layer 5 can use the mode of coating to be formed.Preferably, first is gluing The coating method of oxidant layer 5 can be to brush.
Further, the thickness of the first adhesive layer 5 can select according to specific circumstances: 20 microns to 50 microns.
Second adhesive layer 7 is epoxyn or organosilicon silica gel.
As preferred technical scheme, every fin 2 is all prolonged along the length direction of flat tube 1 by the lateral wall of a liquid collecting cavity 3 Extend the lateral wall of another liquid collecting cavity 3.Use such structure, thus eliminate the non-finned generally existed in existing heat exchanger District, and then eliminate the adverse effect of heat exchanging performance.
In order to strengthen the adhesive strength between flat tube 1 and slot hole 33 and strengthening sealing effectiveness, liquid collecting cavity 3 is in slot hole 33 Place is provided with flange (not shown), and, preferred interference fit between flat tube 1 and slot hole 33, it addition, on flat tube 1 The part (i.e. the both ends of flat tube 1) contacted with slot hole 33 has rough surface.Meanwhile, this kind of bonding way also has resistance to Impacting with high pressure, anti-leakage is higher, the advantage that quality is more reliable.
In the present embodiment, fin 2 is wave-shaped fins, such as uses triangular waveform fin as shown in Figure 8, in order to by force Changing adhesive effect, the first adhesive layer 5 is arranged between the crest of flat tube 1 and fin 2, certainly, in order to obtain preferably heat exchange Effect, can further such that the crest of fin 2 thrusts in the first adhesive layer and contacts with the lateral wall of flat tube 1 as far as possible, and Heat transfer is assisted by the crest skirt section of fin 2.
The gluing core body of heat conduction that soldering core body, common gluing core body and the present embodiment are provided by following table compares Bright:
Soldering core body Common gluing core body The gluing core body of heat conduction 1 The gluing core body of heat conduction 2
Heat exchange amount (W) 4800 4320 4704 4896
Windage (Pa) 160 147.2 147.2 152
Wherein, the gluing core body of heat conduction 1 is the basic structure of the present embodiment, and the gluing core body of heat conduction 2 is on the basis of basic structure By eliminating aptery section, the prioritization scheme using the enhanced heat exchange modes such as crest skirt section auxiliary heat transfer to carry out.
For heat exchanger, it is desirable to heat exchange amount is for being the bigger the better, and windage is the smaller the better, from above table it can be seen that phase For traditional soldering core body, use the first bonding fin of adhesive layer and flat tube, it is possible to reduce while improving heat exchange amount Windage.
In the flat tube and fin type heat exchanger that the present embodiment provides, be there is by employing the first adhesive of good heat conductive performance Layer bonding flat tube and fin, and use the slot hole on the second adhesive layer adhering and sealing flat tube and liquid collecting cavity so that flat tube and All obtain stably firm adhesive effect between fin, between flat tube and liquid collecting cavity, and can fully ensure that flat tube and liquid collecting cavity it Between sealing intensity.Compared in prior art between flat tube and fin, be used uniformly across conductive structure between flat tube and collector tube Glue carries out bonding difference, and this is treated at two by the present embodiment respectively, and the first adhesive requires to have good heat conductivility, and to viscous Connect requirement of strength the highest, therefore preferably select the adhesive of doping heat filling, though reducing adhesive strength but improve heat conductivity; And the second adhesive requires there is the highest sealing adhesive strength (up to 10 MPa), and to heat conductivity no requirement (NR), therefore preferably select With the high strength structural adhesion of the heat filling that undopes, so guarantee to seal bonding well, such as epoxy resin structural adhesive.It addition, wing Sheet is extended to the lateral wall of another liquid collecting cavity by the lateral wall of a liquid collecting cavity.Such structure can eliminate in existing heat exchanger universal The aptery section existed, thus greatly improve the heat exchange property of flat tube and fin type heat exchanger.
It addition, additionally provide a kind of flat tube and fin type heat exchanger method at the present embodiment, above-mentioned flat for manufacturing Pipe finned heat exchanger, this flat tube and fin type heat exchanger method comprises the following steps:
Step one, the first adhesive layer is set on the outer surface of flat tube and fin joint or at the crest of fin;
Step 2, each flat tube and each group of fin are sequentially arranged at intervals setting, and by the first adhesive layer by flat tube with The bonding solidification of fin, forms flat tube and fin type heat exchanger core body;
Step 3, the second adhesive layer is set on the outer surface at flat tube two ends or at the slot hole of liquid collecting cavity, by each Flat tube two ends are inserted in the slot hole of correspondence respectively, and bonding with slot hole for flat tube solidification are sealed by the second adhesive layer, shape Become flat tube and fin type heat exchanger.
As preferred technical scheme, before step one, also need coarse to be formed for the two ends outer surface polishing of flat tube Surface.
Wherein, above first adhesive layer, both can be applied on flat tube, it is also possible to be applied on fin, can be according to reality Border situation selects.Applying glue instrument can use many Glue dripping heads of similar comb teeth point glue at fin crest.
Owing to fin uses wave-shaped fins, after the first adhesive applying glue, fin and flat tube are arranged alternately closed assembly successively, And on the flat tube or side plate of outermost both sides, apply clamping force by middle fin and flat tube compression connection, formation sandwich style Sandwich.So so that assemble between flat tube with fin easier, be connected more closely and heat-conducting effect is more preferable.
It is flat that the flat tube and fin type heat exchanger method employing that the present embodiment provides first coats the pressing again of the first adhesive layer Pipe and the method for fin, it is not necessary to unnecessary equipment such as " cold extrusion devices " and " expanding unit " in traditional handicraft, manufacturing cost Low, manufacture faster convenience, be suitable for high-volume fast pace produce.And the first adhesive layer between flat tube and fin can be ensured Coat good, contact uniform, bonding fully;It addition, this manufacture method makes the space that fin is full of between flat tube and liquid collecting cavity District, eliminates aptery section, therefore without leaking out hidden danger, heat exchange area is fully utilized, and solve the corruption that header exists Erosion problem.Thus obtain ideal heat transfer effect.
It addition, compared to prior art, the flat tube employed in the present invention and liquid collecting cavity, all need not the glue groove that specifically overflows With unnecessary structures such as injecting glue grooves, both simplified the component structure of flat tube and liquid collecting cavity, saved element cost, again can be with simplicity Efficient technique carries out applying glue.
<embodiment two>
In the present embodiment, for the part identical with in embodiment one, give identical reference, and omit identical literary composition Word explanation.
As shown in Figure 1 to Figure 3, the first adhesive layer 5 is mixed wherein by viscosity base material and conductive and heat-conductive filler, conduction It is 20% to 30% that heat filling accounts for the percentage by weight of the first adhesive layer 5.
As preferred technical scheme, conductive and heat-conductive filler is powdered graphite or metal dust.Concrete, conductive and heat-conductive is filled out Material is mixed to form by the graphite powder of different-grain diameter, and certainly, conductive and heat-conductive filler can also be to be mixed by the metal powder of different-grain diameter Being formed, certainly, conductive and heat-conductive filler more or is mixed to form by the graphite powder of different-grain diameter and the metal powder of different-grain diameter.Metal Powder is aluminium powder.
Preferably, flat tube and fin all use non-composite layer aluminium alloy, i.e. monolayer aluminium alloy (or claiming aluminium alloy light paper tinsel), and The corrosion potential of fin is defeated by the corrosion potential of flat tube, and as flat tube uses 3003 aluminium alloys, and fin uses 3003 aluminium alloy bases Adding weight percent position on plinth is the zinc element of 1.5%.
Relative to embodiment one, the present embodiment use conductive and heat-conductive filler and viscosity base material are mixed and made into electrical and thermal conductivity Can the preferably first adhesive layer, advantage is: first adhesive layer with electrical and thermal conductivity performance makes between flat tube and fin Form electrical connection, in the presence of the electrolyte that is corrosive, with flat tube as negative electrode, with fin as anode, can reach to sacrifice fin Anode, protects flat tube negative electrode, prevents flat tube corrosion leakage, improves flat tube corrosion stability, increases the service life of heat exchanger, and can The heat exchange property of heat exchanger is greatly improved.
<embodiment three>
In the present embodiment, for the part identical with in embodiment one, give identical reference, and omit identical literary composition Word explanation.
In the present embodiment, flat tube and fin type heat exchanger method sequentially includes the following steps:
Step one, the second adhesive layer is set on the outer surface at flat tube two ends or at the slot hole of liquid collecting cavity, by each The two ends of flat tube are inserted in the slot hole of correspondence respectively, and by the second adhesive layer, flat tube is bonding solid with the slot hole of liquid collecting cavity Change and seal, form flat tube liquid collecting cavity assembly;
Step 2, the first adhesive layer is set on the outer surface of flat tube and fin joint or at the crest of fin;
Step 3, between two adjacent flat tubes, place fin, and by the first adhesive layer by bonding with fin for flat tube solidification, Form flat tube and fin type heat exchanger.
Wherein, fin uses wave-shaped fins, such as sinusoidal waveform fins.After the first adhesive applying glue, by fin with flat Pipe is arranged alternately closed assembly successively, and middle fin and flat tube are connected by applying clamping force on the flat tube or side plate of outermost both sides Connect, form the sandwich of sandwich style.So so that assemble between flat tube with fin simpler, be connected tightr and lead Thermal effect is more preferable.
If liquid collecting cavity is by the structure being spliced about mainboard and hydroecium, more preferable in order to ensure between flat tube and liquid collecting cavity Sealing intensity, flat tube insert liquid collecting cavity mainboard on after, in the junction applying glue with flat tube surrounding of mainboard medial surface. So adhering and sealing of adhesive is more firm.
<embodiment four>
In the present embodiment, for the part identical with in embodiment one, give identical reference, and omit identical literary composition Word explanation.
As shown in Figure 4, in the present embodiment, the difference with embodiment one is: the first adhesive layer 6 is arranged on wing Between crest skirt section and the flat tube 1 of sheet 2.
Relative to embodiment one, the thermal resistance that the technical scheme of the present embodiment enables to the first adhesive layer 6 is less, heat exchange Performance is more preferable, moreover it is possible to reduces the coating scope of the first adhesive layer 6 while ensureing adhesive effect, thus reduces and produce into This.
<embodiment five>
In the present embodiment, for the part identical with in embodiment one, give identical reference, and omit identical literary composition Word explanation.
As shown in Figure 5 and Figure 6, in the present embodiment, the difference with embodiment one is: what the present embodiment provided is Stacked heat exchanger, such as laminated evaporator etc..The flat tube 8(of this stacked heat exchanger or title plate pipe) be stamped and formed out by two panels Plywood 8a(or claim lamination sheets or stacked plate element or heat sink) constitute, in the surrounding week of the two panels plywood 8a constituting flat tube 8 The place to be sealed on limit coats the second adhesive, makes flat tube 8 surrounding seal;And the salient point 81 in a plywood 8a and raised item 82 Salient point 81 and raised item 82 in (raised item 82 is used for forming internal partition) upper coating the second adhesive, with another plywood glue Connect Guan Bi to connect, the flat tube 8 needed for cambium layer stacked heat exchanger.
Liquid collecting cavity 3 is by termination 83 stratification of flat tube 8.Two liquid collecting cavities 3 of stacked heat exchanger are positioned at flat tube 8 side by side The same side.Concrete, the termination 83 of flat tube 8 is formed with two perforates 831, by coating between the termination 83 of adjacent two flat tubes 8 The second adhesive layer 7 adhering and sealing, perforate 831 that several are axially aligned combination forms a through liquid collecting cavity 3.
Certainly, the flat tube 8 needed for stacked heat exchanger can also be overlapped by two panels plywood, and is formed through soldering.
It addition, fin uses wave-shaped fins, such as square waveform fin.
Relative to embodiment one, in the present embodiment, the advantage of technical scheme is: the liquid collecting cavity of stacked heat exchanger is by flat The termination stacking of pipe is constituted;This spline structure more simplifies, and heat exchange efficiency is higher.
<embodiment six>
In the present embodiment, for the part identical with in embodiment one, give identical reference, and omit identical literary composition Word explanation.
As it is shown in fig. 7, in the present embodiment, it is with the difference of embodiment one: this embodiment is applicable to corrugated tube type Heat exchanger, i.e. flat tube 1 are made up of a snakelike bending of flat tube, and liquid collecting cavity 9 is the import and export header at flat tube two ends.
<embodiment seven>
In the present embodiment, for the part identical with in embodiment one, give identical reference, and omit identical literary composition Word explanation.
In the present embodiment, it is with the difference of embodiment one: this heat exchanger is automotive front end cooling water tank, its collection Sap cavity is to be formed with the combination of aluminium alloy main leaf by plastic water chamber.
Certainly, heat exchanger involved in the present invention and manufacture method thereof are not merely defined in the structure in embodiment one to seven, Any equivalent modifications carrying out the present invention and replacement are the most all in scope of the invention.
In embodiment one to seven, all it is described as a example by wave-shaped fins, certainly, the flat tube and fin type that the present invention provides In heat exchanger, fin can also is that any one fin such as serrated fin, trapezoidal fin.
In embodiment one to seven, liquid collecting cavity is two, certainly, for the flat tube and fin type heat exchanger of integrated form, root Three or four liquid collecting cavities also can be arbitrarily set according to practical situation.Such as, heat exchanger includes two, left and right being cascaded Heat exchanger, this heat exchanger includes three liquid collecting cavities, and the liquid liquid collecting cavity that goes out of the sub-heat exchanger in left side is also the sub-heat exchanger in right side simultaneously Feed liquor liquid collecting cavity.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.

Claims (10)

1. a heat exchanger, it is characterised in that including: flat tube, fin and liquid collecting cavity;
Wherein, described flat tube and described fin are arranged separately, and, by the first adhesive between described flat tube and described fin Bonding;
Offering several slot holes on the sidewall of described liquid collecting cavity, corresponding slot hole is inserted at the two ends of described flat tube respectively In, and, by the second adhesive adhering and sealing between two ends and the described slot hole of described flat tube;Or, described liquid collecting cavity by The termination stratification of described flat tube, and, by the second adhesive adhering and sealing between the termination of the most adjacent two described flat tubes.
2. heat exchanger as claimed in claim 1, it is characterised in that including: some flat tubes, some groups of fins and at least Two liquid collecting cavities;
Wherein, described flat tube and described fin are arranged the most separately, and, by the first glue between described flat tube and described fin Adhesive layer is bonding;
Offering several slot holes being arranged in order on the sidewall of described liquid collecting cavity, the two ends of described flat tube are inserted respectively accordingly Slot hole in, and, by the second adhesive layer adhering and sealing between two ends and the described slot hole of described flat tube;Or, institute State liquid collecting cavity by the termination stratification of described flat tube, and, gluing by second between the termination of the most adjacent two described flat tubes Oxidant layer adhering and sealing.
3. a heat exchanger method, it is characterised in that comprise the following steps:
Step one, flat tube and fin are spaced arrange, and by the first adhesive, described flat tube is bondd with described fin, the first glue Stick be arranged on the outer surface of the described flat tube of described fin joint on or be arranged at the crest of described fin;
Step 2, the second adhesive is set on the outer surface at described flat tube two ends or at the slot hole of described liquid collecting cavity, will Described flat tube two ends are inserted in the slot hole of correspondence respectively, and are glued with described slot hole by described flat tube by described second adhesive Connect solidification to seal, form heat exchanger.
4. a heat exchanger method, it is characterised in that comprise the following steps:
Step one, with the outer surface of the flat tube of fin joint on or the first adhesive is set at the crest of fin;
Step 2, flat tube and fin are sequentially arranged at intervals setting, and by the first adhesive, flat tube is bonding with fin, and formation is changed Hot device core body;
Step 3, the second adhesive is set on the outer surface at flat tube two ends or at the slot hole of liquid collecting cavity, by flat tube two ends Insert respectively in the slot hole of correspondence, and by the second adhesive, bonding with slot hole for flat tube solidification is sealed, form heat exchanger.
5. a heat exchanger method, it is characterised in that comprise the following steps:
Step one, the second adhesive is set on the outer surface at described flat tube two ends or at the slot hole of described liquid collecting cavity, will The two ends of described flat tube are inserted in the slot hole of correspondence respectively, and by the second adhesive inserting described flat tube and described liquid collecting cavity Slotted eye adhering and sealing, forms flat tube liquid collecting cavity assembly;
Step 2, with the outer surface of the described flat tube of described fin joint on or at the crest of described fin, arrange first Adhesive;
Step 3, between two adjacent described flat tubes, place described fin, and by the first adhesive by described flat tube and institute State the bonding solidification of fin, form heat exchanger.
6. heat exchanger as claimed in claim 1 or 2 or the heat exchanger method described in claim 3 or 4 or 5, its feature It is: containing heat filling in described first adhesive.
7. heat exchanger as claimed in claim 6, it is characterised in that: described heat filling is the conductive and heat-conductive with conducting function Filler.
8. heat exchanger as claimed in claim 1 or 2 or the heat exchanger method described in claim 3 or 4 or 5, its feature Being: the first adhesive includes adhesive material, the adhesive material of described first adhesive is acrylic tackifier, asphalt mixtures modified by epoxy resin Any one or number in fat adhesive, polyurethane adhesive, Quick-drying Adhesive, anaerobic adhesive and organic silicon adhesive The combination planted;Second adhesive includes adhesive material, and the adhesive material of described second adhesive is acrylic tackifier, ring Any one in epoxy resins adhesive, polyurethane adhesive, Quick-drying Adhesive, anaerobic adhesive and organic silicon adhesive Or several combination.
9. heat exchanger as claimed in claim 1 or 2 or the heat exchanger method described in claim 3 or 4 or 5, its feature It is: the metal part of described flat tube and/or described fin and/or described liquid collecting cavity is made up of monolayer aluminum alloy materials.
10. heat exchanger as claimed in claim 1 or 2 or the heat exchanger method described in claim 3 or 4 or 5, its feature It is: described liquid collecting cavity is made up of all aluminium alloy or all-plastic is made or aluminium alloy and plastic composition are made;Described fin is Wave-shaped fins;Described wave-shaped fins is preferably sinusoidal waveform fins or triangular waveform fin or U-shaped wave-shaped fins or rectangle Type fin.
CN201610401711.9A 2015-06-12 2016-06-11 Wave-shaped fins formula heat exchanger and manufacture method thereof Pending CN106247821A (en)

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CN207688684U (en) 2018-08-03

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Application publication date: 20161221