CN101883964A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
CN101883964A
CN101883964A CN2008801184946A CN200880118494A CN101883964A CN 101883964 A CN101883964 A CN 101883964A CN 2008801184946 A CN2008801184946 A CN 2008801184946A CN 200880118494 A CN200880118494 A CN 200880118494A CN 101883964 A CN101883964 A CN 101883964A
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CN
China
Prior art keywords
refrigerant pipe
heat exchanger
return duct
tube connector
bilge
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.)
Granted
Application number
CN2008801184946A
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Chinese (zh)
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CN101883964B (en
Inventor
白承哲
高永桓
朴袋均
陈深元
朴来贤
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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
Priority claimed from KR1020080021355A external-priority patent/KR101380078B1/en
Priority claimed from KR1020080034434A external-priority patent/KR101633925B1/en
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN101883964A publication Critical patent/CN101883964A/en
Application granted granted Critical
Publication of CN101883964B publication Critical patent/CN101883964B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • 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
    • F28D1/0478Heat-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 the conduits having a non-circular cross-section
    • 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
    • F28F1/02Tubular elements of cross-section which is non-circular
    • F28F1/022Tubular elements of cross-section which is non-circular with multiple channels

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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

A heat exchanger is provided. The heat exchanger includes two mutually adjacent refrigerant tubes, and a return tube communicating the two refrigerant tubes. The return tube includes two straight portions communicated with the two refrigerant tubes, respectively, and a curved portion having a radius of curvature greater than 1/2 a distance between the two straight portions.

Description

Heat exchanger
Technical field
Present embodiment relates to a kind of heat exchanger.
Background technology
Usually, heat exchanger be a kind of between internal refrigeration storage agent and external fluid the device of heat-shift.Heat exchanger can be used as condenser or evaporimeter in the cold-producing medium circulation that is formed by compressor, condenser, expansion gear and evaporimeter.
Heat exchanger can be divided into fin tube type heat exchanger and microchannel tubular type heat exchanger.The pipe that fin tube type heat exchanger comprises a plurality of fins and passes a plurality of cylindrical shapes or the approximate circle tubular of a plurality of fins.Microchannel tubular type heat exchanger comprises a plurality of refrigerant pipes and is separately positioned on a plurality of curved fins between a plurality of refrigerant pipes.
Summary of the invention
Technical problem
Embodiment provides a kind of heat exchanger with heat exchanger effectiveness of improvement.
Embodiment also provides a kind of the have refrigerant pipe that can be easy to connect and the heat exchanger of return duct.
Technical scheme
In one embodiment, heat exchanger comprises: two contiguous mutually refrigerant pipes; And the return duct that is communicated with two refrigerant pipes, wherein, return duct comprises: two straight portions, and described two straight portions are communicated with two refrigerant pipes respectively; And turn of bilge, described turn of bilge has the radius of curvature greater than half of the distance between two straight portions.
In another embodiment, heat exchanger comprises: two contiguous mutually refrigerant pipes; And the return duct that is communicated with two refrigerant pipes, wherein, return duct comprises: two straight portions, and described two refrigerant pipes are inserted into respectively in described two straight portions; And turn of bilge, described turn of bilge connects described two straight portions.
In another embodiment, heat exchanger comprises: two contiguous mutually refrigerant pipes; With described two return ducts that refrigerant pipe is communicated with; And tube connector, wherein, in the refrigerant pipe one is inserted in the end of described tube connector, and return duct is inserted in the other end of described tube connector.
Beneficial effect
According to above-mentioned embodiment,, improved heat exchanger effectiveness because refrigerant pipe passes and be coupled to fin.
In addition, because return duct is bent to have the radius of curvature above half of the distance between the refrigerant pipe, so that the bending of return duct, and in having the heat exchanger of same size, can make the quantity maximization of refrigerant pipe, thereby can improve the heat exchanger effectiveness of heat exchanger.
In addition, because return duct and refrigerant pipe coupling are joined, so can fix a plurality of refrigerant pipes and a plurality of return duct simultaneously by soldering.
Description of drawings
Fig. 1 is the stereogram that illustrates according to the structure of the heat exchanger of first embodiment.
Fig. 2 is the sectional view that illustrates according to the coupling connection state of the refrigerant pipe of first embodiment and fin.
Fig. 3 is the stereogram according to the return duct of first embodiment.
Fig. 4 is illustrated in the refrigerant pipe of tube connector place connection and the sectional view of return duct.
Fig. 5 is the stereogram according to the tube connector of first embodiment.
Fig. 6 illustrates according to the refrigerant pipe that is in coupling connection state of first embodiment and the sectional view of connector.
Fig. 7 is the flow chart that illustrates according to the manufacture process of the heat exchanger of present embodiment.
Fig. 8 is the stereogram according to the return duct of second embodiment.
Fig. 9 illustrates according to the return duct that is in coupling connection state of second embodiment and the sectional view of refrigerant pipe.
The specific embodiment
Now will be particularly with reference to embodiment of the present disclosure, embodiment illustrates in the accompanying drawings.In the present embodiment, when same title and same Reference numeral are used for same element, no longer provide it to be repeated in this description.
Fig. 1 is the stereogram that illustrates according to the structure of the heat exchanger of first embodiment, and Fig. 2 is the sectional view that illustrates according to the coupling connection state of the refrigerant pipe of first embodiment and fin.
See figures.1.and.2, comprise according to the heat exchanger 1 of present embodiment: a plurality of fins 12, a plurality of refrigerant pipes 10 pass described a plurality of fin; And collector 13, described collector 13 is connected to the part in described a plurality of refrigerant pipe 10.
Particularly, refrigerant pipe 10 forms with flat shape.That is, refrigerant pipe 10 has the cross section of the hexagonal shape of general flat.
Refrigerant pipe 10 comprises body 101 and a plurality of dividing plate 103 that constitutes its external form, and described a plurality of dividing plates 103 are separated into a plurality of coolant channels 102 with the space in the body 101.
The whole periphery of described a plurality of refrigerant pipe 10 passes each fin 12.
In addition, for example, refrigerant pipe 10 and fin 12 can be formed by the aluminum with high heat transfer coefficient.
On the contact surface of refrigerant pipe 10 and fin 12, be formed with brazing layer 19.Brazing layer 19 is to form by coupling being joined or being attached to solder (brazement) heating of the sheet structure on the refrigerant pipe 10 and melting.Brazing layer 19 is fixed together refrigerant pipe 10 and fin 12, thereby produces high-intensity joint.
For example, can use covering as solder.Herein, the fusing point of solder is lower than the fusing point of refrigerant pipe 10 and fin 12.
Described a plurality of refrigerant pipe 10 is connected in a plurality of capillaries 16 one by connector 17, and described a plurality of refrigerant pipe 10 can be divided into: first pipe 111; Be connected to second pipe 113 of collector 13; And be arranged on first pipe 111 and second and manage one or more intervalve 112 between 113.
Described a plurality of capillary 16 is connected to distributor 18, and distributor 18 is arranged on the below of heat exchanger 1.
In addition, making first pipe 111 and intervalve 112 and second manage 113 by return duct 114 is communicated with intervalve 112.Return duct 114 is connected by tube connector 15 with each pipe 111,112,113.
The end of each pipe 111,112,113 and return duct 14 is inserted in the end of tube connector 15.
Each pipe 111,112 and 113 is bent to form two layers.The sweep of each pipe 111,112 and 113 can be called bend 11.Herein, the radius of curvature of bend 11 is greater than half of the distance between two adjacent tube.
First pipe 111, intervalve 112 and second pipe 113 form a pipe unit.A plurality of pipe units form a heat exchanger.
Herein, a plurality of pipe units comprise second pipe 113 respectively, and therefore significantly, head unit 13 links to each other with a plurality of second pipes 113.
In the present embodiment, in pipe unit, comprise an intervalve 112, without limits for the quantity of intervalve 112 though described.For example, intervalve 112 can be set, and first pipe 111 can be connected with second pipe 113 by return duct 14; Perhaps, a plurality of intervalves 112 can be set.In addition, if be provided with one or more intervalve 112, the quantity of then set return duct 14 is Duoed one than the quantity of intervalve 112.
Fig. 3 is the stereogram according to the return duct of first embodiment, and Fig. 4 is illustrated in the refrigerant pipe of tube connector place connection and the sectional view of return duct.
With reference to Fig. 3 and Fig. 4, when return duct 14 was bent and be shaped to open curve generally, it is identical with refrigerant pipe 10 that return duct is configured to.
Return duct 14 comprises body 141 and a plurality of dividing plate 143, and described body 141 has been constructed the external form of return duct 14, and described a plurality of dividing plates 143 are separated into a plurality of coolant channels 142 with the space in the body 141.The quantity of the coolant channel 142 that forms in return duct 14 is identical with the quantity of the coolant channel 102 that forms in refrigerant pipe 10.In addition, the shape of cross section of return duct 14 is identical with the shape of cross section of refrigerant pipe 10.
Body 141 has crooked generally horse-shoe shaped.That is, body 141 comprises a turn of bilge 141a and two straight 141b of portion---each straight portion extends from one of them end of turn of bilge 141a.
Particularly, turn of bilge 141a be bent in case have greater than the distance between two straight 141b of portion (L: basically with the refrigerant pipe of two vicinities between distance identical) half radius of curvature (R).
Make distance minimization between the refrigerant pipe 10 of two vicinities like this, be convenient to form return duct 14 simultaneously.In other words, reduce the distance (L) between the refrigerant pipe 10 of two vicinities, and increased the quantity of the refrigerant pipe 10 that in the heat exchanger of same size, can be provided with.When the quantity of refrigerant pipe 10 increased, the heat-exchange capacity of heat exchanger 1 increased.
Yet the distance between refrigerant pipe 10 (L) is when reducing, and the radius of curvature that connects the return duct 14 of refrigerant pipe 10 also reduces, and therefore makes the bending of return duct 14 become difficult more.
Correspondingly, in the present embodiment, the radius of curvature of turn of bilge 141a forms half greater than the distance (L) between the contiguous refrigerant pipe 10, thereby can easily realize return duct 14---promptly, the sweep of return duct 14---formation.
The end of refrigerant pipe 10 and return duct 14 is inserted in the tube connector 15.Tube connector 15 forms end with refrigerant pipe 10 and return duct 14 corresponding in shape.The inner rim of tube connector 15 forms with the neighboring of refrigerant pipe 10 and return duct 14 has identical size.
Forming brazing layer 20 between refrigerant pipe 10 and the tube connector 15 and between return duct 14 and tube connector 15.Brazed tubes 20 forms by heating and fusing solder.Brazing layer 20 firmly fixes with refrigerant pipe 10 and tube connector 15 and with tube connector 15 and return duct 14.
As mentioned above, solder can be a covering.The fusing point of solder is lower than the fusing point of refrigerant pipe 10, return duct 14 and tube connector 15.
Particularly, in the position of the end predetermined distance of distance refrigerant pipe 10 and return duct 14, with solder coupling connection or be attached to the periphery of refrigerant pipe 10 and return duct 14.On each end of refrigerant pipe 10 and return duct 14, form cover layer 21.
When being inserted into refrigerant pipe 10 and return duct 14 in the tube connector 15, each end face of refrigerant pipe 10 and return duct 14 towards each other.
When heating during solder, cover layer 21 prevents that the solder that melts from entering in the space between refrigerant pipe 10 and return duct 14.Brazing layer 20 can form on the outside of cover layer 21 partly.
For example, can at first form cover layer in the end of refrigerant pipe 10 and return duct 14, solder can surround at least a portion cover layer then.
Fig. 4 has clearly described the position of brazing layer 20 and cover layer 21.
Below, will provide the description of the coupling connection process of refrigerant pipe, tube connector and return duct.
At first, the periphery with solder coiling refrigerant tube 10 and return duct 14 carries out attached or the coupling connection.Then, on each end of refrigerant pipe 10 and return duct 14, form cover layer 21.The order of the coupling connection of the formation of cover layer 21 and refrigerant pipe 10 and return duct 14 can be put upside down.
Cover layer 21 is formed by cladding material (for example oil), and this cladding material is coated onto or is sprayed onto on refrigerant pipe 10 and the return duct 14.
Next, coupling on it being associated with the refrigerant pipe 10 of solder and each end of return duct 14 is inserted in the tube connector 15.Then, solder is heated in order to refrigerant pipe 10 is fixed to tube connector 15 and return duct 14 is fixed to tube connector 15.
Herein, because each end of refrigerant pipe that is in contact with one another 10 and return duct 14 is fixed to tube connector 15, so refrigerant pipe 10 and return duct 14 are fixed indirectly by tube connector 15.
Fig. 5 is the stereogram according to the tube connector of first embodiment, and Fig. 6 illustrates according to the refrigerant pipe that is in coupling connection state of first embodiment and the sectional view of connector.
With reference to Fig. 1,5 and 6, connector 17 coupling part refrigerant pipes 10 (pipe of first among Fig. 1 111) and columnar capillary 16.That is, connector 17 is connected to difform capillary 16 with refrigerant pipe 10.
Particularly, connector 17 comprises first connector 170a that is coupled to refrigerant pipe 10 and the second connector 170b that is coupled to capillary 16.
The first connector 170a has opening 172, and opening 172 forms in order to refrigerant pipe 10 is inserted wherein.Opening 172 is shaped to corresponding with the shape of refrigerant pipe 10.The surface of the second connector 170b defines the coupling connection hole 131 that is used for capillary 16 is coupled to second connector.
Be thus connected at capillary 16 under the situation in coupling connection hole 131, refrigerant pipe 10 is inserted among the first connector 170a in order to be communicated with capillary 16 and refrigerant pipe 10.
The transverse cross-sectional area of the first connector 170a forms greater than the transverse cross-sectional area of the second connector 170b.Therefore, on the inboard of connector 17---promptly, in the connecting portion between the first connector 170a and the second connector 170b---form holding section 173.When being inserted into refrigerant pipe 10 in the connector 17, make the end of refrigerant pipe 10 compress holding section 173.
In addition, holding section 173 is formed on the position away from coupling connection hole 171.Correspondingly, when heat exchanger is used as evaporimeter, the cold-producing medium of discharging from connector 16 enters the inner space of the second connector 170b, and is supplied to refrigerant pipe 10 then, thereby cold-producing medium fully can be fed to each coolant channel (10P) of refrigerant pipe 10.In addition, the thickness of holding section 173 can form corresponding to the thickness of refrigerant pipe 10.
That is, the inner surface of the inner surface of refrigerant pipe 10 and the second connector 170b is with periphery.Therefore, the resistance that flows of the cold-producing medium between the refrigerant pipe 10 and the second connector 170b can minimize.
In addition, can form brazing layer 22 at the connecting portion place of the first connector 170a and refrigerant pipe 10.
Below, will provide the description of the manufacture process of heat exchanger.
Fig. 7 is the flow chart that illustrates according to the manufacture process of the heat exchanger of present embodiment.
With reference to Fig. 7, at first, form a plurality of refrigerant pipes 10 and a plurality of fin 12.Then, the solder coupling is joined or is attached to the periphery of refrigerant pipe 10.Next, in operation S11, there is the refrigerant pipe 10 of solder to insert fin 12 with attached.
Next, in operation S13, first pipe 111, intervalve 112, second pipe 113 and return duct 14 join with tube connector 15 couplings respectively.Form cover layer 21 respectively on coupling connection or attached pipe 111,112,113 that solder arranged and the return duct 14 thereon herein.Then, in operation S15, first pipe, 111 end is coupled to connector 17.
Next, in operation S17, with refrigerant pipe 10, return duct 14 and tube connector 15 heating (soldering).For example, refrigerant pipe 10, return duct 14, tube connector 15 and connector 17 can be heated to about 580 ℃ to 612 ℃ temperature.Certainly, the process of heating and cooling agent pipe 10, return duct 14, tube connector 15 and connector 17 is in order to heat and to melt solder.
Then, between refrigerant pipe 10 and fin 12, form brazing layer 19, in order to refrigerant pipe 10 is fixed to fin 12.
In addition, forming brazing layer 20 between refrigerant pipe 10 and the tube connector 15 and between tube connector 15 and return duct 14, in order to refrigerant pipe 10 and tube connector 15 and tube connector 15 and return duct 14 is fixing.
In addition, between connector 17 and refrigerant pipe 10, form brazing layer 22, in order to connector 17 and refrigerant pipe 10 are fixed together.
Next, in operation 19, the oil in refrigerant pipe 10 and the return duct 14 is become dry.Then, in operation 21, on the outer surface of fin 12, cover corrosion-resisting film.After this, in operation S23, on the outer surface of the corrosion-resisting film of fin 12, cover hydrophilic membrane.
Next, in operation S25, on heat exchanger 1, carry out leak detection.Have predetermined pressure by making---for example, 20kg/cm 2Pressure---fluid cycle through the inside of heat exchanger and detect seepage and carry out leak detection.
Next, will the effect of above-mentioned heat exchanger be described.
At first, when heat exchanger 1 is used as evaporimeter, make two phase refrigerant be assigned to a plurality of capillaries 16 from distributor 18.In the present embodiment, because be provided with a plurality of pipe units, so first pipe 111 that comprises in each pipe unit links to each other respectively with a plurality of capillaries 16.Correspondingly, described a plurality of capillary 16 links to each other with distributor 18.
If cold-producing medium is compressed when its process compressor fully, then cold-producing medium is in liquid state.But the cold-producing medium of process compressor can not be liquefied fully, but is in the state of gas-liquid two-phase.
In the present embodiment, because capillary 16 is connected respectively to first pipe 111 by connector 17, and extend and be coupled to the top of distributor 18 downwards, herein, so cold-producing medium can be assigned to each capillary 16 equably from distributor 18.That is, the cold-producing medium that can prevent liquid is assigned to a capillary 16 in a plurality of capillaries 16, and the cold-producing medium of gaseous state is assigned to another capillary 16 in a plurality of capillaries 16.
The cold-producing medium that flow to each capillary 16 has experienced expansion process, and the cold-producing medium of expansion flows in each first pipe 111.Flow to the cold-producing medium of each first pipe in 111 and flow through intervalve 112 and second pipe 113 successively to be evaporated, it flows in the collector 13 then.
Herein, during heat exchanger 1 is used as evaporimeter, owing to the heat exchange between cold-producing medium and external fluid produces condensate.In this, according to present embodiment, because refrigerant pipe 10 passes and be coupled to fin 12, so the condensate that produces is easy to flow downward along fin 12.
On the contrary, when with heat exchanger when the condenser, the cold-producing medium of the gaseous state of discharging from compressor flows to the collector 13.The cold-producing medium that flows in the collector 13 is assigned to each second pipe 113.Flow to the condensation of refrigerant of second pipe 113, simultaneously successively through the intervalve 112 and first pipe 111.Condensed refrigerant flows to each capillary 16.
Correspondingly, in the present embodiment,, improved heat exchanger effectiveness in a plurality of refrigerant pipes because the coolant channel that forms is coupled to and passes fin.
In addition, because a plurality of refrigerant pipe and a plurality of fin, refrigerant pipe and return duct and refrigerant pipe and connector can be by soldering while coupling connection, so can make the manufacture simplification of heat exchanger.
Fig. 8 is the stereogram according to the return duct of second embodiment, and Fig. 9 illustrates according to the return duct that is in coupling connection state of second embodiment and the sectional view of refrigerant pipe.
With reference to Fig. 8 and Fig. 9, comprise a turn of bilge 231 and two straight portions 233 according to the return duct 23 of present embodiment.
Turn of bilge 231 is crooked so that have radius of curvature (R) greater than half of the distance between the refrigerant pipe of two vicinities (L).
Two straight portions 233 are separately positioned on the place, arbitrary end of turn of bilge 231.In the refrigerant pipe 10 of two vicinities one correspondingly is inserted in the end of straight portion 233.Correspondingly, each straight portion 233 forms to compare with refrigerant pipe 10 and has relatively large transverse cross-sectional area.
In addition, the corresponding a plurality of coolant channels 232 of quantity of the coolant channel in setting and the refrigerant pipe 10 in turn of bilge 231.Therefore, the coolant channel 232 in the turn of bilge 231 is connected with coolant channel 102 in the refrigerant pipe 10 respectively.In addition, a plurality of dividing plates 234 are set in the space in turn of bilge 231, so that the inner space of turn of bilge 231 is separated into a plurality of coolant channels 232.
In addition, can on return duct 23, form brazing layer 24, perhaps more specifically, on the part that connects each straight portion 233 and each refrigerant pipe 10, form brazing layer 24.That is, return duct 23 and each refrigerant pipe 10 join by the soldering coupling.
In the description of present embodiment,, brazing layer can be called fixed bed by brazing layer being respectively fixed on two members.
Any in this manual " embodiment " of mentioning, " a kind of embodiment ", " illustrative embodiments " etc. mean that specific feature, structure or the characteristic described in conjunction with this embodiment are included at least one embodiment of the present disclosure.The similar term that occurs everywhere needn't all relate to same embodiment in this manual.In addition, when describing specific feature, structure or characteristic, think that those of ordinary skills also can be with these features, structure or characteristic in conjunction with being applied in other embodiment in conjunction with any embodiment.
Though described each embodiment with reference to a large amount of illustrated embodiment, should be appreciated that and all will drop in the purport and scope of principle of the present disclosure by many other remodeling and the embodiment that those of ordinary skills make.More particularly, the component part of the attached composite set in the scope of the disclosure, accompanying drawing and claims and/or device can be done various variations and remodeling.The variant and remodeling in component part and/or device, substituting use also is conspicuous to those of ordinary skills.

Claims (20)

1. heat exchanger comprises:
Two contiguous mutually refrigerant pipes; And
With described two return ducts that refrigerant pipe is communicated with, wherein,
Described return duct comprises:
Two straight portions, described two straight portions are communicated with described two refrigerant pipes respectively; And
Turn of bilge, described turn of bilge have the radius of curvature greater than half of the distance between described two straight portions.
2. according to the heat exchanger of claim 1, wherein, each described refrigerant pipe is separated into a plurality of coolant channels.
3. according to the heat exchanger of claim 2, wherein, each all is separated into described straight portion quantitatively and the corresponding a plurality of coolant channels of the coolant channel of described refrigerant pipe.
4. according to the heat exchanger of claim 1, also comprise tube connector, in the described refrigerant pipe one is inserted in the end of described tube connector, and described return duct is inserted in the other end of described tube connector.
5. according to the heat exchanger of claim 4, wherein, each described straight portion has transverse cross-sectional area identical with the transverse cross-sectional area of each described refrigerant pipe on size and dimension.
6. according to the heat exchanger of claim 4, wherein, described refrigerant pipe and described return duct comprise fixed bed respectively on its neighboring, in order to described tube connector is fixed to described refrigerant pipe and described tube connector is fixed to described return duct.
7. according to the heat exchanger of claim 6, wherein,
Under described refrigerant pipe and described return duct were inserted into situation in the described tube connector, described refrigerant pipe and described return duct contacted with each other at its place, end separately, and
The end separately of contacted described refrigerant pipe and described return duct comprises cover layer on its periphery.
8. according to the heat exchanger of claim 1, wherein, described refrigerant pipe is inserted into respectively in the described straight portion.
9. heat exchanger according to Claim 8, wherein, described refrigerant pipe comprises fixed bed on its neighboring, described fixed bed is used for described refrigerant pipe is fixed to described straight portion.
10. according to the heat exchanger of claim 1, also comprise a plurality of fins, described refrigerant pipe passes described a plurality of fin.
11. a heat exchanger comprises:
Two contiguous mutually refrigerant pipes; And
With described two return ducts that refrigerant pipe is communicated with, wherein,
Described return duct comprises:
Two straight portions, described two refrigerant pipes are inserted into respectively in described two straight portions; And
Turn of bilge, described turn of bilge connect described two straight portions.
12. according to the heat exchanger of claim 11, wherein, each described refrigerant pipe is separated into a plurality of coolant channels.
13. according to the heat exchanger of claim 12, wherein, described turn of bilge is separated into quantitatively and the corresponding a plurality of coolant channels of the coolant channel of described refrigerant pipe.
14. according to the heat exchanger of claim 11, also comprise the fixed bed between described refrigerant pipe and described straight portion, in order to described refrigerant pipe is fixed to described straight portion.
15. according to the heat exchanger of claim 11, also comprise a plurality of fins, described refrigerant pipe passes and is coupled to described a plurality of fin.
16. a heat exchanger comprises:
Two contiguous mutually refrigerant pipes;
With described two return ducts that refrigerant pipe is communicated with; And
Tube connector, in the described refrigerant pipe one is inserted in the end of described tube connector, and described return duct is inserted in the other end of described tube connector.
17. heat exchanger according to claim 16, comprise also being separately positioned between described tube connector and the described refrigerant pipe and the fixed bed between described return duct and the described tube connector that described fixed bed is used for described tube connector is fixed to described refrigerant pipe and described tube connector is fixed to described return duct.
18. according to the heat exchanger of claim 17, wherein, described return duct comprises: two straight portions, described two straight portions are corresponding with described refrigerant pipe in shape; And turn of bilge, described turn of bilge connects described two straight portions.
19. according to the heat exchanger of claim 16, wherein, described refrigerant pipe and described return duct limit a plurality of coolant channels respectively.
20. according to the heat exchanger of claim 16, also comprise a plurality of fins, described refrigerant pipe passes and is coupled to described a plurality of fin.
CN2008801184946A 2008-03-07 2008-07-09 Heat exchanger Expired - Fee Related CN101883964B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR10-2008-0021355 2008-03-07
KR1020080021355A KR101380078B1 (en) 2008-03-07 2008-03-07 Return tube and heat exchanger comprising the same
KR10-2008-0034434 2008-04-15
KR1020080034434A KR101633925B1 (en) 2008-04-15 2008-04-15 Heat exchanger
PCT/KR2008/004050 WO2009110664A1 (en) 2008-03-07 2008-07-09 Heat exchanger

Publications (2)

Publication Number Publication Date
CN101883964A true CN101883964A (en) 2010-11-10
CN101883964B CN101883964B (en) 2012-07-04

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Application Number Title Priority Date Filing Date
CN2008801184946A Expired - Fee Related CN101883964B (en) 2008-03-07 2008-07-09 Heat exchanger

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CN (1) CN101883964B (en)
WO (1) WO2009110664A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
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CN106855369A (en) * 2015-12-09 2017-06-16 浙江三花汽车零部件有限公司 A kind of heat exchanger
CN107289676A (en) * 2016-03-31 2017-10-24 杭州三花研究院有限公司 Heat exchanger and vehicle air conditioner
CN107289677A (en) * 2016-03-31 2017-10-24 杭州三花研究院有限公司 Heat exchanger and CO2Cooling system
CN108981437A (en) * 2017-06-02 2018-12-11 美的集团股份有限公司 Heat exchanger and water heater
CN108981436A (en) * 2017-06-02 2018-12-11 美的集团股份有限公司 Heat exchanger and water heater
US10520258B2 (en) 2015-12-09 2019-12-31 Zhejiang Sanhua Automotive Components Co., Ltd. Heat exchanger

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CN106716044A (en) * 2015-03-10 2017-05-24 翰昂汽车零部件有限公司 Heat exchanger for cooling electrical element
CN106716044B (en) * 2015-03-10 2019-02-22 翰昂汽车零部件有限公司 For cooling down the heat exchanger of electrical component
CN106855369A (en) * 2015-12-09 2017-06-16 浙江三花汽车零部件有限公司 A kind of heat exchanger
US10520258B2 (en) 2015-12-09 2019-12-31 Zhejiang Sanhua Automotive Components Co., Ltd. Heat exchanger
CN107289676A (en) * 2016-03-31 2017-10-24 杭州三花研究院有限公司 Heat exchanger and vehicle air conditioner
CN107289677A (en) * 2016-03-31 2017-10-24 杭州三花研究院有限公司 Heat exchanger and CO2Cooling system
CN107289677B (en) * 2016-03-31 2020-09-25 杭州三花研究院有限公司 Heat exchanger and CO2Cooling system
CN107289676B (en) * 2016-03-31 2020-09-25 杭州三花研究院有限公司 Heat exchanger and vehicle air conditioning system
CN108981437A (en) * 2017-06-02 2018-12-11 美的集团股份有限公司 Heat exchanger and water heater
CN108981436A (en) * 2017-06-02 2018-12-11 美的集团股份有限公司 Heat exchanger and water heater

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