CN110392814A - Heat exchanger with heat transfer pipe unit - Google Patents

Heat exchanger with heat transfer pipe unit Download PDF

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Publication number
CN110392814A
CN110392814A CN201880017564.2A CN201880017564A CN110392814A CN 110392814 A CN110392814 A CN 110392814A CN 201880017564 A CN201880017564 A CN 201880017564A CN 110392814 A CN110392814 A CN 110392814A
Authority
CN
China
Prior art keywords
heat
transfer pipe
collector
fin
heat exchanger
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.)
Pending
Application number
CN201880017564.2A
Other languages
Chinese (zh)
Inventor
日下秀之
中野宽之
安东透
吉冈俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikanko Co Ltd
Daikin Industries Ltd
Original Assignee
Daikanko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daikanko Co Ltd filed Critical Daikanko Co Ltd
Priority claimed from PCT/JP2018/009485 external-priority patent/WO2018168759A1/en
Publication of CN110392814A publication Critical patent/CN110392814A/en
Pending legal-status Critical Current

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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
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • 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
    • F28D1/047Heat-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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0477Heat-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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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
    • F28D1/05333Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • 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
    • F28F1/14Tubular 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 longitudinally
    • F28F1/22Tubular 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 longitudinally 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
    • 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
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00Components of central heating installations excluding heat sources
    • F24D2220/06Heat exchangers
    • 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
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • 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
    • F28F2009/0285Other particular headers or end plates
    • 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
    • F28F2009/0285Other particular headers or end plates
    • F28F2009/029Other particular headers or end plates with increasing or decreasing cross-section, e.g. having conical shape
    • 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

Abstract

Heat exchanger (10) has heat transfer pipe unit (30) and collector (21,22).Pipe unit (30) are conducted heat at least one fin (32) and multiple heat-transfer pipes (31).Collector (21,22) is connect with heat transfer pipe unit (30).Fin (32) and heat-transfer pipe (31) are alternately arranged.Multiple heat-transfer pipes (31) extend along heat-transfer pipe direction of extension (z).Fin (32) is being engaged along the side that heat-transfer pipe direction of extension (z) extends with heat-transfer pipe (31).In heat-transfer pipe direction of extension (z), the end (32e) of fin (32) is located at the end (31e) than heat-transfer pipe (31) close to the central position of heat transfer pipe unit (30).Collector (21,22) is equipped with the hole (24) for being inserted into the end of heat-transfer pipe (31).

Description

Heat exchanger with heat transfer pipe unit
Technical field
The present invention relates to a kind of heat exchangers with heat transfer pipe unit.
Background technique
In the heat exchanger used in air-conditioning device etc., there is the heat exchanger with heat transfer pipe unit, the heat transfer Pipe unit is formed for the heat-transfer pipe of refrigerant flowing and the fin of progress heat exchange as integrated component.Patent document Heat exchanger disclosed in 1 (Japanese Unexamined Patent Publication 2013-139965 bulletin) has multiple such pipe units that conduct heat.Multiple heat-transfer pipes Unit is connect with shared collector.For ease of carrying out the connection, which is divided into multiple layers.In the system of the heat exchanger In making, collector dividing layer and the stacking of heat-transfer pipe units alternately.Next, refrigerant is let out from the seam of collector dividing layer in order to prevent Leakage is brazed the sandwich of collector dividing layer and heat transfer pipe unit in furnace.
Summary of the invention
Subject to be solved by the invention
Since the heat exchanger of such structure is made of a large amount of collector dividing layer, number of parts is more, manufacture Complex procedures.
The subject of the invention is to provide a kind of easy heat exchangers of manufacture.
Means for solving the problems
The heat exchanger of 1st viewpoint of the invention has heat transfer pipe unit sum aggregate pipe.The pipe unit that conducts heat has at least one Fin and multiple heat-transfer pipes.Collector is connect with heat transfer pipe unit.Fin and heat-transfer pipe are alternately arranged.Multiple heat-transfer pipes along Heat-transfer pipe direction of extension extends.Fin engages at the side extended in heat-transfer pipe direction of extension with heat-transfer pipe.It is conducting heat In pipe direction of extension, the end of fin is located at the end than heat-transfer pipe close to the central position of heat transfer pipe unit.Collector is equipped with For being inserted into the hole of the end of heat-transfer pipe.
According to this structure, the end of heat-transfer pipe is prominent from the end of fin.Therefore, by the way that the protruding portion of heat-transfer pipe to be inserted into In the hole of collector, heat exchanger can be easily manufactured.
The heat exchanger of 2nd viewpoint of the invention is heat exchanger described in viewpoint 1, and the heat involved in the 1st viewpoint is handed over On the basis of parallel operation, collector includes the 1st collector and the 2nd collector for clipping heat transfer pipe unit.
According to this structure, the conduct heat both ends of pipe unit are fixed on collector respectively.Therefore, heat exchanger is relative to outer Power, impact durability improve.
On the basis of the heat exchanger of the 2nd viewpoint, the 2nd collector is arranged the 1st the heat exchanger of 3rd viewpoint of the invention The lower section of collector.The heat transfer pipe unit joint face of 2nd collector is tilted relative to heat-transfer pipe detaching direction.
According to this structure, the heat transfer pipe unit joint face inclination of the 2nd collector.Therefore, heat transfer is reached along heat transfer pipe unit The dew of pipe unit joint face is flowed down due to inclination and from the 2nd collector, and the drainage of heat exchanger improves.
The base of the heat exchanger of any viewpoint of the heat exchanger of 4th viewpoint of the invention in the 1st viewpoint into the 3rd viewpoint On plinth, collector is round tube.
According to this structure, collector is round tube.Therefore, because the manufacture of collector is easy, therefore it can more easily manufacture heat Exchanger.
The heat exchanger of any one viewpoint of the heat exchanger of 5th viewpoint of the invention in the 1st viewpoint into the 4th viewpoint On the basis of, the end of fin has the consistent shape of shape with collector, so that the end in heat-transfer pipe is inserted in hole The end of fin is contacted with collector under state.
According to this structure, the end of fin is contacted with collector.Therefore, the bonding strength of heat transfer pipe unit and collector improves.
The base of the heat exchanger of any viewpoint of the heat exchanger of 6th viewpoint of the invention in the 1st viewpoint into the 4th viewpoint On plinth, the end of fin is separated with collector.
According to this structure, it is able to suppress brazing material due to capillarity and to the phenomenon moved between fin.
On the basis of the heat exchanger of the 5th viewpoint, heat transfer pipe unit has only the heat exchanger of 7th viewpoint of the invention Block piece.Heat-transfer pipe, the end in heat-transfer pipe and the position between the end of fin is arranged in stop part.Stop part is can not Pass through the shape in the hole of collector.
According to this structure, brazing material can be further suppressed to show due to capillarity to what is moved between fin As.
The base of the heat exchanger of any viewpoint of the heat exchanger of 8th viewpoint of the invention in the 1st viewpoint into the 7th viewpoint On plinth, heat transfer pipe unit is single component.
According to this structure, heat transfer pipe unit is single component.Therefore, because heat transfer pipe unit is easy to operate, so hot The assembling of exchanger is easy.
The manufacturing method of the heat exchanger of 9th viewpoint of the invention is with following steps: being formed has fin and heat transfer The heat transfer pipe unit of pipe;In order to make the end of fin be located at the end than heat-transfer pipe in heat-transfer pipe direction of extension close to heat-transfer pipe A part of fin is cut off and notch is arranged by the position in the center of unit;In collector, the end for being inserted into heat-transfer pipe is set The hole in portion;The end of heat-transfer pipe is inserted in the hole;And heat transfer pipe unit sum aggregate pipe is brazed.
According to this method, by the way that notch is arranged in a part excision of fin, so that the end of heat-transfer pipe is from wing The end of piece is prominent.Therefore, by the way that the protruding portion of heat-transfer pipe to be inserted into the hole of collector, heat exchanger can be easily manufactured.
The manufacturing method of the heat exchanger of 10th viewpoint of the invention passes on the basis of the method for the 9th viewpoint being formed It include the step of fin and heat-transfer pipe is integrally formed by the extrusion forming of metal material in the step of heat pipe unit.
According to this method, the pipe unit that conducts heat is formed as single component by the extrusion forming of metal material.Therefore, by Easy to operate in heat transfer pipe unit, therefore, the assembling of heat exchanger is easy.
The manufacturing method of the heat exchanger of 11st viewpoint of the invention is on the basis of the 9th viewpoint or the method for the 10th viewpoint On, in the step of notch is set, multiple positions of fin are cut off by being punched.
According to this method, the excision at multiple positions is carried out by punching.Therefore, make the manufacture of heat exchanger efficient.
Any viewpoint of the manufacturing method of the heat exchanger of 12nd viewpoint of the invention in the 9th viewpoint into the 11st viewpoint On the basis of method, the providing holes the step of in, utilize drill bit to form hole.
According to this method, it is able to use the hole that drill bit simply forms collector.Therefore, the manufacture of heat exchanger becomes more to hold Easily.
Invention effect
The heat exchanger of 1st viewpoint according to the present invention, the 4th viewpoint, the 8th viewpoint, can be easily manufactured heat exchanger.
The heat exchanger of 2nd viewpoint according to the present invention, heat exchanger are improved relative to the durability of external force, impact.
The drainage of the heat exchanger of 3rd viewpoint according to the present invention, heat exchanger improves.
The heat exchanger of 5th viewpoint according to the present invention, the bonding strength raising of conduct heat pipe unit and collector.
The heat exchanger of 6th viewpoint according to the present invention, the 7th viewpoint, is able to suppress brazing material due to capillarity And to the phenomenon moved between fin.
The manufacturing method of heat exchanger of 9th viewpoint according to the present invention to the 12nd viewpoint, can be easily manufactured hot friendship Parallel operation.
Detailed description of the invention
Fig. 1 is the schematic diagram for showing the shape of heat exchanger 10 of the 1st embodiment of the invention.
Fig. 2 is the schematic diagram for showing the shape of heat transfer pipe unit 30.
Fig. 3 is the cross-sectional view of heat transfer pipe unit 30.
Fig. 4 is the partial sectional view of heat exchanger 10.
Fig. 5 is the partial sectional view of the heat exchanger 10 ' of the 1st variation of the 1st embodiment of the invention.
Fig. 6 is the partial sectional view of the heat exchanger 10 " of the 2nd variation of the 1st embodiment of the invention.
Fig. 7 is the partial sectional view of the heat exchanger 10A of the 2nd embodiment of the invention.
Fig. 8 is the partial sectional view of the heat exchanger 10B of the 3rd embodiment of the invention.
Fig. 9 is the partial sectional view of the heat exchanger 10C of the 4th embodiment of the invention.
Figure 10 is the schematic diagram for showing the shape of heat exchanger 10D of the 5th embodiment of the invention.
Figure 11 is the schematic diagram for showing the shape of heat transfer pipe unit 30.
Specific embodiment
The 1st embodiment > of <
(1) overall structure
Fig. 1 shows the heat exchanger 10 of the 1st embodiment of the invention.Heat exchanger 10 is in order in refrigerant and air Between carry out heat exchange and the component used in such as air-conditioning device.Heat exchanger 10 have the 1st piping the 41, the 2nd piping 42, 1st collector 21, the 2nd collector 22 and heat transfer pipe unit group 39.Heat transfer pipe unit group 39 is made of multiple heat transfer pipe units 30.
(2) each portion's structure
(2-1) collector and piping
The 41 and the 2nd piping 42 of 1st piping is the component for passing through refrigerant.The 41 and the 2nd piping 42 of 1st piping It can be played as the introducing port and outlet for the refrigerant that can use the various states such as gas, liquid, gas-liquid two-phase Function.1st piping 41 is connect with the 1st collector 21, enables to exchange refrigerant between the 1st collector 21.2nd piping 42 with The connection of 2nd collector 22, enables to exchange refrigerant between the 2nd collector 22.1st collector 21 and the 2nd collector 22 are Hollow component has heat transfer pipe unit joint face 23.1st collector 21 and the 2nd collector 22 are configured to respective heat-transfer pipe Unit joint face 23 is opposed or substantially opposed.In the present embodiment, the lower section of the 1st collector 21 is arranged in the 2nd collector 22.
(2-2) heat transfer pipe unit
The multiple heat transfer pipe units 30 for constituting heat transfer pipe unit group 39 are conducting heat on pipe unit orientation x at spaced intervals Configuration.Each heat transfer pipe unit 30 is connect at respective heat transfer pipe unit joint face 23 with the 1st collector 21 and the 2nd collector.
Fig. 2 shows a heat transfer pipe units 30.The pipe unit 30 that conducts heat has multiple heat-transfer pipes 31 and multiple fins 32.If The quantity for being placed in the heat-transfer pipe 31 of heat transfer pipe unit 30 is, for example, 6 or more, but not limited to this.
Heat-transfer pipe 31 is the component for moving refrigerant between the 1st collector 21 and the 2nd collector 22.Each heat-transfer pipe 31 Both ends connect with the heat transfer pipe unit joint face 23 of the 1st collector 21 and the 2nd collector 22.Each heat-transfer pipe 31, which at least has, to be passed The part extended on heat pipe direction of extension z, preferably linearly.Multiple heat-transfer pipes 31 arrange on heat-transfer pipe detaching direction y.
Fin 32 be for make the refrigerant flowed in adjacent heat-transfer pipe 31 and around air between carry out hot friendship The component changed.Each fin 32 is configured between two adjacent heat-transfer pipes 31.It can also be in the outermost of heat transfer pipe unit 30 The outside of heat-transfer pipe 31 further configure fin 32.Fin 32 has the side that extends on heat-transfer pipe direction of extension z, the side with Heat-transfer pipe 31 engages.Fin 32 and heat-transfer pipe 31 are alternately arranged on heat-transfer pipe detaching direction y.It is configured to air by not shown Fan etc. flowed up in the side parallel with yz plane.It the direction of air stream can also be consistent with heat-transfer pipe detaching direction y.
Heat transfer pipe unit orientation x, heat-transfer pipe detaching direction y and heat-transfer pipe direction of extension z intersect.Heat-transfer pipe Unit orientation x, heat-transfer pipe detaching direction y and heat-transfer pipe direction of extension z can also be orthogonal.It is also possible to conduct heat Pipe unit orientation x and heat-transfer pipe detaching direction y are horizontally oriented, and heat-transfer pipe direction of extension z is vertical direction.
Fig. 3 shows the section of heat transfer pipe unit 30.The internal diameter D of each heat-transfer pipe 31 is, for example, 1.5mm hereinafter, preferably 0.8mm or less.The thickness T of fin 32 is, for example, 0.3mm hereinafter, preferably 0.2mm is hereinafter, more preferably 0.1mm or less.
(3) connection structure of heat transfer pipe unit and collector
As shown in Fig. 2, being formed with notch 33 at the position of fin 32 in the end of heat transfer pipe unit 30.Due to notch The presence in portion 33, on heat-transfer pipe direction of extension z, the end 32e of fin 32 is located at the end 31e than heat-transfer pipe 31 close to heat transfer The position in the center of pipe unit 30.
Fig. 4 is the cross-sectional view of heat exchanger 10.It is equipped with the end 31e's for being inserted into heat-transfer pipe 31 on the 2nd collector 22 Hole 24.The end 32e of fin 32 has the consistent shape of shape with the 2nd collector 22, so that in the end 31e of heat-transfer pipe 31 The end 32e of fin 32 is at least contacted with the heat transfer pipe unit joint face 23 of the 2nd collector 22 in the state of being inserted in hole 24.It should Contact site is fixed by soldering etc., thus that the path of refrigerant is closed.
In addition, Fig. 4 shows the periphery of the 2nd collector 22, still, the periphery of the 1st collector 21 also structure having the same.
(4) manufacturing method of heat exchanger 10
Heat transfer pipe unit 30 is fabricated by metal materials such as such as aluminum or aluminum alloy.Firstly, using the section shape with Fig. 3 The comparable mold of shape carries out the extrusion forming of metal material, and fin 32 and heat-transfer pipe 31 is integrally formed.Next, excision wing A part of piece 32 is arranged notch 33.As a result, on heat-transfer pipe direction of extension z, the end 32e of fin 32 is located at than heat transfer Position of the end 31e of pipe 31 close to the center of heat transfer pipe unit 30.Preferably, notch 33, which passes through, utilizes punching by fin 32 Multiple positions excision and formed.
1st collector 21 and the 2nd collector 22 produce and by metal material processing at tubulose.The 1st collector 21 with And the 2nd collector 22 be equipped with hole 24 for being inserted into the end 31e of heat-transfer pipe 31.Hole 24 is, for example, the circle formed using drill bit Hole.
In the assembling of heat exchanger 10, to insertion heat transfer pipe unit 30 in the hole 24 of the 1st collector 21 and the 2nd collector 22 Heat-transfer pipe 31 end 31e.It is connect as a result, as the end 32e of fin 32 and the heat transfer pipe unit joint face 23 of the 2nd collector 22 The state of touching.In the contact site, heat transfer pipe unit 30 is brazed with the 1st collector 21 or the 2nd collector 22.Specifically, Brazing material is previously applied on the heat transfer pipe unit joint face 23 of the 1st collector 21 and the 2nd collector 22.To conduct heat pipe unit After in the hole 24 of the end 31e insertion heat transfer pipe unit joint face 23 of 30 heat-transfer pipe 31, heat exchanger 10 is put into furnace. Then, brazing material melts fill the gap between the edge in hole 24 and heat-transfer pipe 31.
(5) feature
(5-1)
Notch 33 is arranged in a part by cutting off fin 32, so that the end 31e of heat-transfer pipe 31 is from fin 32 End 32e it is prominent.Therefore, by the way that the protruding portion of heat-transfer pipe 31 to be inserted into the hole 24 of the 1st collector 21 and the 2nd collector 22, Heat exchanger 10 can be easily manufactured.
(5-2)
The both ends of heat transfer pipe unit 30 are separately fixed on the 1st collector 21 and the 2nd collector 22.Therefore, heat exchanger phase The durability of external force, impact is improved.
(5-3)
The end 32e of fin 32 is contacted with the 1st collector 21 and the 2nd collector 22.Therefore, heat transfer pipe unit 30 and the 1st collects The bonding strength of pipe 21 and the 2nd collector 22 improves.
(5-4)
Heat transfer pipe unit 30 is formed as single component by the extrusion forming of metal material.Therefore, because heat-transfer pipe Unit 30 is easy to operate, and therefore, the assembling of heat exchanger 10 is easy.
(5-5)
Multiple notch 33 are once formed using punching.Therefore, make the manufacture of heat exchanger 10 efficient.
(5-6)
The hole of 1st collector 21 and the 2nd collector 22 also can be used drill bit and simply form.In this case, heat exchanger 10 manufacture becomes easier to.
(6) variation
Hereinafter, being illustrated to modified embodiment of the present embodiment.
(6-1) the 1st variation
Fig. 5 shows the heat exchanger 10 ' of the 1st variation of the 1st embodiment of the invention.Heat exchanger 10 ' is in fin On this point 32 end 32e is separated with the heat transfer pipe unit joint face 23 of the 1st collector 21 and the 2nd collector 22 is implemented with the 1st The heat exchanger 10 of mode is different.The structure is realized by the stop part 35 being arranged on heat-transfer pipe 31.Backstop The position between the end 31e of heat-transfer pipe 31 and the end 32e of fin 32 is arranged in part 35.Stop part 35 is can not be by the 1st The shape in the hole 24 of collector 21 and the 2nd collector 22.Gap 36 is equipped between stop part 35 and fin 32, as a result, only Block piece 35 is separated with the end 32e of fin 32.In this variation, it is equipped with only on whole heat-transfer pipes 31 of heat transfer pipe unit 30 Block piece 35.
During manufacturing, stop part 35 is formed initially as fin 32.Then, in order to form notch 33 and to fin 32 In the process that part is punched, stop part 35 is not removed and remains on heat-transfer pipe 31.
According to this structure, stop part 35 is separated with the end 32e of fin 32.Therefore, it is suppressed that the soldering melted in furnace The phenomenon that material is moved due to capillarity and between fin 32 and fin 32.Thus, it is suppressed that the concentration of brazing material, Reduce the generation of the erosion of brazing material or fin 32.
(6-2) the 2nd variation
Fig. 6 shows the heat exchanger 10 " of the 1st variation of the 1st embodiment of the invention.Heat exchanger 10 " is only existing Conduct heat pipe unit 30 a part heat-transfer pipe 31 be equipped with stop part 35 on this point, with the 1st of the 1st embodiment deformation The heat exchanger 10 ' of example is different.
According to this structure, brazing material is further suppressed to move due to capillarity and between fin 32 and fin 32 Dynamic phenomenon.
<the 2nd embodiment>
(1) structure
Fig. 7 shows the heat exchanger 10A of the 2nd embodiment of the invention.In heat exchanger 10A, at least the 2nd collector 22 Cross sectional shape be it is trapezoidal.The heat transfer pipe unit joint face 23 of the 2nd collector 22 is tilted relative to heat-transfer pipe detaching direction y as a result,. The end 32e of fin 32 has the consistent shape of shape with the 2nd collector 22, so that the end 31e in heat-transfer pipe 31 is inserted into The end 32e of fin 32 is at least contacted with the heat transfer pipe unit joint face 23 of the 2nd collector 22 in the state of in hole 24.
According to this structure, along heat transfer pipe unit 30 reach heat transfer pipe unit joint face 23 dew due to inclination and from 2nd collector 22 flows down.Therefore, the drainage of heat exchanger 10A improves.
(2) variation
The variation of 1st embodiment can also be applied to present embodiment.
<the 3rd embodiment>
(1) structure
Fig. 8 shows the heat exchanger 10B of the 3rd embodiment of the invention.In heat exchanger 10B, at least the 2nd collector 22 Cross sectional shape come to a point upwards.The heat transfer pipe unit joint face 23 of the 2nd collector 22 is by relative to heat-transfer pipe detaching direction as a result, Inclined two inclined-planes y are constituted.The end 32e of fin 32 has the consistent shape of shape with the 2nd collector 22, so that passing Heat transfer pipe unit of the end 32e of fin 32 at least with the 2nd collector 22 in the state that the end 31e of heat pipe 31 is inserted in hole 24 Joint face 23 contacts.
According to this structure, similarly, along heat transfer pipe unit 30 reach heat transfer pipe unit joint face 23 dew by It is flowed down in inclination from the 2nd collector 22.Therefore, the drainage of heat exchanger 10B improves.
(2) variation
The variation of 1st embodiment can also be applied to present embodiment.
<the 4th embodiment>
(1) structure
Fig. 9 shows the heat exchanger 10C of the 4th embodiment of the invention.In heat exchanger 10C, at least the 2nd collector 22 It is round tube.Most of region of the heat transfer pipe unit joint face 23 of the 2nd collector 22 is inclined relative to heat-transfer pipe detaching direction y as a result, Tiltedly.The end 32e of fin 32 has the consistent shape of shape with the 2nd collector 22, so that the end 31e in heat-transfer pipe 31 is inserted The end 32e of fin 32 is at least contacted with the heat transfer pipe unit joint face 23 of the 2nd collector 22 in the state of entering in hole 24.
According to this structure, at least the 2nd collector 22 is round tube.Therefore, because the manufacture of the 2nd collector 22 is easy, therefore can More easily manufacture heat exchanger 10.
Further, since the heat transfer pipe unit joint face 23 of the 2nd collector 22 tilts, therefore reaches and pass along heat transfer pipe unit 30 The dew of heat pipe unit joint face 23 is flowed down from the 2nd collector 22.Therefore, the drainage of heat exchanger 10C improves.
(2) variation
The variation of 1st embodiment can also be applied to present embodiment.
<the 5th embodiment>
(1) structure
Figure 10 is the heat exchanger 10D of above embodiment of the invention.In heat exchanger 10D, the 1st collector 21 and 2nd collector 22 is relative to the heat transfer configuration of pipe unit group 39 in phase the same side.1st collector 21 and the 2nd collector 22 are matched with the 1st respectively 42 connection of the piping of pipe 41 and the 2nd.
Figure 11 shows a heat transfer in the multiple heat transfer pipe units 30 for the heat transfer pipe unit group 39 for constituting heat exchanger 10D Pipe unit 30.The pipe unit 30 that conducts heat has multiple heat-transfer pipes 31 and at least one fin 32.Each heat-transfer pipe 31 at least has The part extended on heat-transfer pipe direction of extension z, preferably linearly.Multiple heat-transfer pipes 31 arrange on heat-transfer pipe detaching direction y. In addition, adjacent heat-transfer pipe 31 is linked by curvilinear connecting piece 31c.That is, heat transfer pipe unit 30 have by heat-transfer pipe 31 and The refrigerant path that connecting piece 31c is constituted.The refrigerant path makes refrigerant between the 1st collector 21 and the 2nd collector 22 It is mobile.Heat transfer pipe unit joint face 23 either in the end 31e and the 1st collector 21 and the 2nd collector 22 of heat-transfer pipe 31 It is all connected with.
The pipe unit 30 that conducts heat has fin 32 between adjacent heat-transfer pipe 31.In the outermost biography of heat transfer pipe unit 30 The outside of heat pipe 31 can also further configure fin 32.Multiple fins 32 also can connect heat transfer pipe unit 30 upper end or Lower end.Fin 32 has the side extended on heat-transfer pipe direction of extension z, which engages with heat-transfer pipe 31.Fin 32 and heat-transfer pipe 31 are alternately arranged on heat-transfer pipe detaching direction y.It is configured to, air is by fan (not shown) etc. parallel with yz plane Side flows up.It the direction of air stream can also be consistent with heat-transfer pipe detaching direction y.Heat transfer pipe unit 30 can also pass through metal Method other than the extrusion forming of material manufactures.
In the end of heat transfer pipe unit 30, notch 33 is formed at the position of fin 32.Due to the presence of notch 33, On heat-transfer pipe direction of extension z, the end 32e of fin 32 is located at the end 31e than heat-transfer pipe 31 close to heat transfer pipe unit 30 The position in center.The end 32e of fin 32 has the consistent shape of shape with the 1st collector 21 and the 2nd collector 22, so that The end of fin 32 in the state that the end 31e of heat-transfer pipe 31 is inserted in the hole 24 of the 1st collector 21 and the 2nd collector 22 32e is contacted with heat transfer pipe unit joint face 23.The contact site is fixed by soldering etc., thus that refrigerant path is closed.
It is opened when according to this structure, due to 43 in of heat transfer pipe unit 30 to surrounding space, dew is more It is easily drained.
(2) variation
The variation of 1st embodiment can also be applied to present embodiment.
<the 6th embodiment>
In the embodiment described so far, as an example of configuration, be referred to heat transfer pipe unit orientation x with And the structure that heat-transfer pipe detaching direction y is horizontally oriented, heat-transfer pipe direction of extension z is vertical direction.It can also replace, it will Heat exchanger 10 configures in other directions.For example, it can be heat-transfer pipe detaching direction y and heat-transfer pipe direction of extension z are Horizontal direction, heat transfer pipe unit orientation x is vertical direction.
Label declaration
10: heat exchanger;21: the 1 collectors;22: the 2 collectors;23: heat transfer pipe unit joint face;24: hole;30: heat-transfer pipe Unit;31: heat-transfer pipe;31e: the end of heat-transfer pipe;32: fin;32e: the end of fin;33: notch;35: stop part; 36: gap;41: the 1 pipings;42: the 2 pipings.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2013-139965 bulletin

Claims (12)

1. a kind of heat exchanger (10), has:
It conducts heat pipe unit (30), there is at least one fin (32) and multiple heat-transfer pipes (31);And
Collector (21,22) is connect with the heat transfer pipe unit,
The fin and the heat-transfer pipe are alternately arranged,
The multiple heat-transfer pipe extends along heat-transfer pipe direction of extension (z),
The fin engages at the side extended along the heat-transfer pipe direction of extension (z) with the heat-transfer pipe,
On the heat-transfer pipe direction of extension (z), the end (32e) of the fin is located at the end (31e) than the heat-transfer pipe The position in the center of the close heat transfer pipe unit,
The collector is equipped with the hole (24) for being inserted into the end of the heat-transfer pipe.
2. heat exchanger according to claim 1, wherein
The collector includes the 1st collector (21) and the 2nd collector (22) for clipping the heat transfer pipe unit.
3. heat exchanger according to claim 2, wherein
The lower section of the 1st collector is arranged in 2nd collector,
The heat transfer pipe unit joint face (23) of 2nd collector is tilted relative to heat-transfer pipe detaching direction.
4. heat exchanger according to any one of claims 1 to 3, wherein
The collector is round tube.
5. heat exchanger according to any one of claims 1 to 4, wherein
The end of the fin has the consistent shape of shape with the collector, so that described in the heat-transfer pipe End contacts the end of the fin in the state of being inserted in the hole with the collector.
6. heat exchanger according to any one of claims 1 to 4, wherein
The end (32e) of the fin is separated with the collector (21,22).
7. heat exchanger according to claim 6, wherein
The heat transfer pipe unit also has stop part (35), the stop part (35) be arranged the heat-transfer pipe (31), be in institute The position between the end (31e) of heat-transfer pipe and the end (32e) of the fin is stated,
The stop part is can not be by the shape in the hole of the collector.
8. heat exchanger according to any one of claims 1 to 7, wherein
The heat transfer pipe unit is single component.
9. a kind of manufacturing method of heat exchanger, wherein have following steps:
Form the heat transfer pipe unit (30) with fin (32) and heat-transfer pipe (31);
In order to make the end (32e) of the fin be located at the end (31e) than the heat-transfer pipe in heat-transfer pipe direction of extension (z) Close to the position in the center of the heat transfer pipe unit, a part of the fin is cut off and notch (33) are set;
In collector (21,22), the hole (24) for being inserted into the end of the heat-transfer pipe is set;
The end of the heat-transfer pipe is inserted into the hole;And
The heat transfer pipe unit and the collector are brazed.
10. the manufacturing method of heat exchanger according to claim 9, wherein
In the step of forming the heat transfer pipe unit, the fin is integrally formed comprising the extrusion forming by metal material And the step of heat-transfer pipe.
11. the manufacturing method of heat exchanger according to claim 9 or 10, wherein
In the step of notch is set, multiple positions of the fin are cut off by being punched.
12. the manufacturing method of heat exchanger according to any of claims 9 to 11, wherein
In the step of hole is set, the hole is formed using drill bit.
CN201880017564.2A 2017-03-16 2018-03-12 Heat exchanger with heat transfer pipe unit Pending CN110392814A (en)

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JP2017051290 2017-03-16
JP2017-051290 2017-03-16
JP2017253830A JP2018155479A (en) 2017-03-16 2017-12-28 Heat exchanger having heat transfer pipe unit
JP2017-253830 2017-12-28
PCT/JP2018/009485 WO2018168759A1 (en) 2017-03-16 2018-03-12 Heat exchanger having heat transfer tube unit

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WO2020230267A1 (en) 2019-05-14 2020-11-19 三菱電機株式会社 Heat exchanger and refrigeration cycle device
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