CN107907000A - The heat exchanger of air-conditioning heat exchanger flat tube and the application flat tube - Google Patents
The heat exchanger of air-conditioning heat exchanger flat tube and the application flat tube Download PDFInfo
- Publication number
- CN107907000A CN107907000A CN201711173904.4A CN201711173904A CN107907000A CN 107907000 A CN107907000 A CN 107907000A CN 201711173904 A CN201711173904 A CN 201711173904A CN 107907000 A CN107907000 A CN 107907000A
- Authority
- CN
- China
- Prior art keywords
- flat tube
- heat exchanger
- air
- inner fin
- conditioning heat
- 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
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000005030 aluminium foil Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 12
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 101100152731 Arabidopsis thaliana TH2 gene Proteins 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
Landscapes
- 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 belongs to automobile air conditioning technology field, a kind of air-conditioning heat exchanger flat tube, including flat tube body and inner fin are disclosed, the inner fin is wave structure, the inner fin is fixed in the flat tube body, and the inner fin forms several heat exchanging medium passages with flat tube inner body wall.The invention also discloses the air-conditioning heat exchanger of the above-mentioned flat tube of application.The present invention is designed by new flat tube, it not only can effectively lift heat exchange property, reduce refrigerant collateral resistance, be also beneficial to the flat tube weight reduced, realize the lifting and lightweight of heat-exchanger products overall performance, reduce the flexibility of the difficulty of flat tube shaping and manufacture, lifting process and design application.
Description
Technical field
The invention belongs to the heat exchange in automobile air conditioning technology field, particularly a kind of air-conditioning heat exchanger flat tube and the application flat tube
Device.
Background technology
The heat exchanger of automotive air-conditioning system mainly includes condenser, evaporator and heater.Wherein, condenser and evaporator
Typically it is used for the heat exchange of refrigerant and air, there is certain similitude in structure.
Referring to attached drawing 1,2, parallel flow structure is the mainstream structure of condenser and evaporator in automotive air-conditioning system；Its core
Component is the flat tube and fin for forming basic heat exchange unit.At present, the flat tube in parallel flow condenser and evaporator, mainly includes
Two kinds of structures：Porous extrusion structure and integrated folding molding structure.
Referring to attached drawing 3, porous extruding flat tube is mainly characterized by being formed a certain number of by extrusion forming using aluminium bar
Heat exchanging medium passage.Flat tube is an integral structure, its outer wall thickness and interior muscle wall thickness can be unequal, and general interior muscle wall thickness is less than outer
Wall thickness.Extruding flat tube configuration is simple, follow-up heat exchanger soldering processes is required relatively low.Shortcoming is flat tube wall thickness by mould
Limited with moulding process, it is impossible to too thin, the flat tube heavier-weight of unit length.In addition, the aluminium one for extrusion forming process
As for 1 series or 3 series alloys, material and shaping after metallographic structure feature, determine that its corrosion resistance is relatively poor.Cause
This, existing porous extruding flat tube, although itself is simple in structure, heat exchanger brazing manufacturability is good, by flat tube moulding process and
Material limits, and product weight is heavier, and corrosion resistance is relatively poor；Want further lifting heat exchange property and progress lightweight is non-
It is often difficult.
Referring to attached drawing 4, integrated folding flat tube is mainly characterized by, using plate progress multistep folding forming, being formed certain
The heat exchanging medium passage of quantity.Flat tube is generally an integral structure, its outer wall thickness and interior muscle wall thickness are usually equal.For rolling over
The plate of folded flat tube is generally the advantage of 3 serial modified alloys, cold rolling shaping, its alloy and metallographic structure, determines flat tube
With more preferably corrosion resistance.It is relatively thin to be additionally useful for folding the general opposing compression flat tube of plate wall thickness of flat tube, product weight
Flat tube is relatively extruded with heat exchange property also has some superiority.Shortcoming is that its moulding process is more complicated, to follow-up heat exchanger
Soldering processes are more demanding.Therefore, the integrated folding flat tube of existing structure, forming step is more, and technique is more complicated.In addition, by
In the limitation of structure and technique, the outer wall of flat tube must be consistent with interior muscle wall thickness, and there is also obvious for the number of channels of heat transferring medium
Limitation, the lifting of product weight and heat exchange property opposing compression flat tube is also just than relatively limited.
In conclusion using the heat exchanger of extruding flat tube, the overall performance of its product is relatively poor, and does not have light weight
The advantage of change；Using the heat exchanger of integrated folding flat tube, the overall performance of its product has lifting but still has compared with big limitation,
And its craftsmanship is poor, production cost is also higher.
The content of the invention
In order to solve the above technical problem, the present invention provides the heat exchange of a kind of air-conditioning heat exchanger flat tube and the application flat tube
Device, is designed by new flat tube, not only can effectively be lifted heat exchange property, be reduced refrigerant collateral resistance, is also beneficial to reduce flat
Pipe weight, realizes the lifting and lightweight of heat-exchanger products overall performance, reduces the difficulty of flat tube shaping and manufacture, lifting process
Property and design application flexibility.
The present invention adopts the technical scheme that：
A kind of air-conditioning heat exchanger flat tube, it is characterized in that, including flat tube body and inner fin, the inner fin are wave structure,
The inner fin is fixed in the flat tube body, and the inner fin forms several heat transferring mediums with flat tube inner body wall and leads to
Road.
Further, the flat tube body is bent to form flat tubular structure by plate, and the plate bond end gapless is handed over
Mistake fitting, the outside of the flat tube body is concordant, is internally formed protrusion, the alternating share length of the connecting pin is 1-2mm.
Further, the plate bond end is located at the central region of the side long side of the flat tube.
Further, the waveform of the inner fin is U-shaped, and the width of each heat exchanging medium passage is 0.4-1.0mm.
Further, the waveform of the inner fin is V-shaped, and the width of the widest part of each heat exchanging medium passage is 0.4-
1.0mm。
Further, the thickness of the inner fin is 0.05-0.1mm.
Further, the width of the flat tube body is 8-20mm, is highly 1.2-1.8mm, wall thickness 0.15-0.25mm,
The thickness of the inner fin is 0.05-0.1mm.
Further, the flat tube body is folded for aluminium panels and formed, and the inner fin is rolled for aluminium foil or punch forming.
A kind of condenser for including above-mentioned air-conditioning heat exchanger flat tube, it is characterized in that, including be mounted side by side the multiple
The outer fin installed between flat tube and flat tube, connects the first collection of heat exchange Jie's passage of flat tube between the both ends of multiple flat tubes
Flow tube and the second header.
A kind of evaporator of above-mentioned air-conditioning heat exchanger flat tube, it is characterized in that, including the multiple flat tube being mounted side by side
And the outer fin installed between flat tube, the first header of heat exchange Jie's passage of connection flat tube between the both ends of multiple flat tubes
With the second header.
The beneficial effects of the invention are as follows：
（1）Flat tube uses the structure design of independent inner fin, and sealing plate material bond end area occupied is small, and inner fin wall thickness is less than flat
The outer wall wall thickness of pipe；So that the product weight of flat tube and heat exchanger mitigates, the wetted perimeter length and valid circulation area of flat tube are able to
Lifting, the heat exchange property lifting of heat exchanger, the flow resistance of medium side reduce.
（2）The step of flat tube body construction is simple, is molded using folded sheet, its global formation is less, difficulty is relatively low；It is interior
Fin uses aluminium foil punching press or roll forming, and shaping efficiency is high.In addition, the pitch of waves adjustment of inner fin is simpler.These characteristics make
Heat-exchanger products manufacture efficiency is higher, craftsmanship is preferable, while the flexibility for designing application is also lifted.
（3）Plate bond end in the middle part of flat tube body, raised to flat tube body interior, flat tube body exterior keeps concordant,
It is compact-sized, the valid circulation area for ensureing flat tube is not only improved, is also beneficial to the assembling and welding of flat tube and header.
（4）Flat tube body improves alloy using 3 series, and the corrosion resistance of material is superior.In addition, adopted in the middle part of flat tube body
The plate bond end welded with reinforcement, advantageously ensures that the welding quality and compressive resistance of flat tube body.
（5）Using the heat exchange property of flat tube is higher, medium side flow resistance is relatively low, overall performance is obviously improved.
（6）The overall weight of heat exchanger reduces, and has light-weighted advantage.
（7）Heat exchanger corrosion resistance is superior, compressive resistance is preferable, the reliability lifting of product.
（8）Craftsmanship is preferable, manufacture efficiency is higher；Design parameter is easy to adjust at the same time, and the flexibility for designing application is preferable.
Brief description of the drawings
Attached drawing 1 is the structure diagram of parallel flow condenser；
Attached drawing 2 is the structure diagram of parallel-flow evaporator；
Attached drawing 3 is the structure diagram of porous extruding flat tube；
Attached drawing 4 is the structure diagram of integrated folding flat tube；
Flat tube schematic perspective view of the attached drawing 5 with U-shaped inner fin；
Flat tube schematic cross-section of the attached drawing 6 with U-shaped inner fin；
Flat tube schematic perspective view of the attached drawing 7 with V-arrangement inner fin；
Flat tube schematic cross-section of the attached drawing 8 with V-arrangement inner fin.
Label in attached drawing is respectively：
1. flat tube；2. outer fin；
3. header；4. header；
5. condenser；6. evaporator；
11. flat tube body；12. inner fin；
13. plate bond end；14. heat exchanging medium passage.
Embodiment
The embodiment of heat exchanger to air-conditioning heat exchanger flat tube of the present invention and using the flat tube below in conjunction with the accompanying drawings
Elaborate.
Referring to attached drawing 5-8,1 two sub- parts of flat tube, are respectively flat tube body 11 and inner fin 12.Flat tube body 11 is aluminium
Panel folding forming, its material are the two-sided composite material with solder；Inner fin 12 is aluminium foil punching press or roll forming, its material
Expect for the non-composite material without solder；The material wall thickness FT of inner fin 12 is less than the material wall thickness TT of flat tube body 11.
Flat tube body 11, by the folding forming of plate, forms the outer wall of flat tube.At the middle part of flat tube wherein side long side
Region, comprising a plate bond end 13, plate bond end 13, has certain length, interior to 11 internal protrusion of flat tube body
Outer plate gapless fitting, the outside of flat tube body 11 are concordant.13 region of plate bond end, by being welded for the independent of flat tube 1,
Or sealed by the exterior of the integral braze-welded formation flat tube body 11 for heat exchanger core body 4.
Inner fin 12, after the rolling or punch forming of aluminium foil, is assembled to inside flat tube body 11, forms certain amount
Heat exchanging medium passage 14, the global sections shape of inner fin 12 is symmetrical, all tops and the flat tube body 11 of waveform
The fitting of inside gapless, form the reinforcement support to flat tube body 11.The wave height FH1 of 12 intermediate region of inner fin, less than two
The wave height FH2 of side region, carries out gapless with the internal protrusion of 11 central region plate bond end 13 of flat tube body and is bonded.
After flat tube 1 is molded, assembled with outer fin 2 and header 3,4, form heat exchanger core body 4, as shown in Figure 1；
Again by integral braze-welded, the combination between formation flat tube body 11 and the outer fin 2 of inner fin 12, flat tube body 11.For flat tube 1
The situation do not welded individually, can also realize plate bond end 13 on flat tube body 11 by the integral braze-welded of heat exchanger core body 4
The welded seal in region.
The waveform of inner fin 12 is U-shaped or is V-type, and corresponding heat exchanging medium passage 14 is also U-shaped or V-type.Interior wing
The pitch of waves FP of piece 12, determines the width C W and quantity CN of heat exchanging medium passage 14, can be in interior adjustment in a big way.
Above-mentioned flat tube 1, since the plate bond end 13 for sealing is compact-sized, area occupied is small, and inner fin 12
Material wall thickness FT it is smaller, the effective area of heat exchanging medium passage 14 is larger.In addition, the pitch of waves FP of inner fin 12 can accomplish compared with
Small, the quantity CN of heat exchanging medium passage 14 can be more.It means that in similar flat tube width TW and flat tube height TH
Under, above-mentioned flat tube has the larger long Pw of wetted perimeter and larger effective flow area Ae.Wherein：Long Pw=2* ((FP/2- of wetted perimeter
FT)+(TH-2*TT-FT)), effective flow area Ae=(FP/2-FT) * (TH-2*TT-FT).The long Pw of larger wetted perimeter, it is meant that
Flat tube 1 has the heat exchange area and heat exchange property of higher；Larger effective flow area Ae, it is meant that flat tube 1 has lower
Medium side flow resistance.
With continued reference to attached drawing 5-8, flat tube 1 includes flat tube body 11 and inner fin 12, the width TW of flat tube body 11 for 8 to
20mm, height TH are 1.2 to 1.8mm, and wall thickness TT is 0.15 to 0.25mm.The plate bond end 13 of flat tube body 11, length WL
For 1 to 2mm.Flat tube body 11 is aluminium panels folding forming, and material is the two-sided composite material with solder, 3 serial modifieds
Aluminium alloy.
The wall thickness FT of inner fin 12 is 0.05 to 0.1mm, and pitch of waves FP is 0.8 to 2.0mm, and waveform is U-shaped or V-type；Flat tube 1
The width C W of heat exchanging medium passage 14 is 0.4 to 1.0mm.Inner fin 12 is rolled for aluminium foil or punch forming, and material is not tape welding
The non-composite material of material, 3 series alloys.
Illustrated referring again to attached drawing 1,2, the technical solution above-mentioned flat tube 1 being applied in air-conditioning heat exchanger.Comprising
The condenser 5 of above-mentioned V-arrangement inner fin flat tube 1, including flat tube 1, outer fin 2, the first header 3 and the second header 4.Wherein：
The width TW of flat tube 1 is 12mm, and the waveform of inner fin 12 is V-type, pitch of waves FP is about 1.2mm.Include above-mentioned U-shaped inner fin flat tube
1 evaporator 6, including flat tube 1, outer fin 2, the first header 3 and the second header 4.Wherein：The width TW of flat tube 1 is
20mm, the waveform of inner fin 12 is that U-shaped, pitch of waves FP is about 1.8mm.
It the above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as this hair
Bright protection domain.
Claims (10)
- A kind of 1. air-conditioning heat exchanger flat tube, it is characterised in that：Including flat tube body and inner fin, the inner fin is corrugated knot Structure, the inner fin are fixed in the flat tube body, and the inner fin forms several heat transferring mediums with flat tube inner body wall Passage.
- 2. air-conditioning heat exchanger flat tube according to claim 1, it is characterised in that：The flat tube body is bent to form by plate Flat tubular structure, the plate bond end gapless are staggeredly bonded, and the outside of the flat tube body is concordant, is internally formed convex Rise, the alternating share length of the connecting pin is 1-2mm.
- 3. air-conditioning heat exchanger flat tube according to claim 2, it is characterised in that：The plate bond end is located at the flat tube Side long side central region.
- 4. air-conditioning heat exchanger flat tube according to claim 1, it is characterised in that：The waveform of the inner fin is U-shaped, often The width of a heat exchanging medium passage is 0.4-1.0mm.
- 5. air-conditioning heat exchanger flat tube according to claim 1, it is characterised in that：The waveform of the inner fin is V-shaped, often The width of the widest part of a heat exchanging medium passage is 0.4-1.0mm.
- 6. air-conditioning heat exchanger flat tube according to claim 1, it is characterised in that：The thickness of the inner fin is 0.05- 0.1mm。
- 7. air-conditioning heat exchanger flat tube according to any one of claim 1 to 6, it is characterised in that：The flat tube body Width is 8-20mm, is highly 1.2-1.8mm, wall thickness 0.15-0.25mm, and the thickness of the inner fin is 0.05-0.1mm.
- 8. air-conditioning heat exchanger flat tube according to any one of claim 1 to 6, it is characterised in that：The flat tube body is Aluminium panels are folded and formed, and the inner fin is rolled for aluminium foil or punch forming.
- A kind of 9. condenser included such as air-conditioning heat exchanger flat tube described in any item of the claim 1 to 8, it is characterised in that： Including the outer fin installed between the multiple flat tube and flat tube that are mounted side by side, the connection flat between the both ends of multiple flat tubes The first header and the second header of heat exchange Jie's passage of pipe.
- A kind of 10. evaporator included such as air-conditioning heat exchanger flat tube described in any item of the claim 1 to 8, it is characterised in that： Including the outer fin installed between the multiple flat tube and flat tube that are mounted side by side, the connection flat between the both ends of multiple flat tubes The first header and the second header of heat exchange Jie's passage of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173904.4A CN107907000A (en) | 2017-11-22 | 2017-11-22 | The heat exchanger of air-conditioning heat exchanger flat tube and the application flat tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173904.4A CN107907000A (en) | 2017-11-22 | 2017-11-22 | The heat exchanger of air-conditioning heat exchanger flat tube and the application flat tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107907000A true CN107907000A (en) | 2018-04-13 |
Family
ID=61847232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711173904.4A Pending CN107907000A (en) | 2017-11-22 | 2017-11-22 | The heat exchanger of air-conditioning heat exchanger flat tube and the application flat tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107907000A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109977610A (en) * | 2019-04-16 | 2019-07-05 | 扬州瑞斯乐复合金属材料有限公司 | A kind of judgment method of microchannel aluminium flat conduit necking recess |
| CN110822975A (en) * | 2018-08-14 | 2020-02-21 | 杭州三花微通道换热器有限公司 | Heat exchange tube, heat exchanger and manufacturing method of heat exchange tube |
| CN110895065A (en) * | 2018-09-13 | 2020-03-20 | 日立江森自控空调有限公司 | Heat exchanger, method for manufacturing heat exchanger, and air conditioner provided with heat exchanger |
| CN113340129A (en) * | 2021-06-10 | 2021-09-03 | 祥博传热科技股份有限公司 | Efficient heat exchanger and processing technology thereof |
| CN113701544A (en) * | 2020-05-22 | 2021-11-26 | 北京机械设备研究所 | Flat pipe radiator and processing method of flat pipe of radiator |
| WO2022166887A1 (en) * | 2021-02-05 | 2022-08-11 | 杭州三花微通道换热器有限公司 | Heat exchange tube and heat exchanger having same |
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| EP1022532A2 (en) * | 1999-01-19 | 2000-07-26 | Calsonic Corporation | Flat tubes for use with heat exchanger and manufacturing method thereof |
| CN102889713A (en) * | 2012-09-20 | 2013-01-23 | 上海加冷松芝汽车空调股份有限公司 | Parallel flow heat exchanger special for bus air conditioner |
| CN203177709U (en) * | 2013-04-23 | 2013-09-04 | 北京凯德菲冷却器制造有限公司 | Inner and outer finned flat tube for air cooler and heat exchanger |
| CN106949769A (en) * | 2016-01-07 | 2017-07-14 | 上海交通大学 | Modular folding heat exchange flat tube |
| CN207991352U (en) * | 2017-11-22 | 2018-10-19 | 上海加冷松芝汽车空调股份有限公司 | The heat exchanger of air-conditioning heat exchanger flat tube and the application flat tube |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1022532A2 (en) * | 1999-01-19 | 2000-07-26 | Calsonic Corporation | Flat tubes for use with heat exchanger and manufacturing method thereof |
| CN102889713A (en) * | 2012-09-20 | 2013-01-23 | 上海加冷松芝汽车空调股份有限公司 | Parallel flow heat exchanger special for bus air conditioner |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822975A (en) * | 2018-08-14 | 2020-02-21 | 杭州三花微通道换热器有限公司 | Heat exchange tube, heat exchanger and manufacturing method of heat exchange tube |
| CN110895065A (en) * | 2018-09-13 | 2020-03-20 | 日立江森自控空调有限公司 | Heat exchanger, method for manufacturing heat exchanger, and air conditioner provided with heat exchanger |
| CN109977610A (en) * | 2019-04-16 | 2019-07-05 | 扬州瑞斯乐复合金属材料有限公司 | A kind of judgment method of microchannel aluminium flat conduit necking recess |
| CN109977610B (en) * | 2019-04-16 | 2022-12-09 | 扬州瑞斯乐复合金属材料有限公司 | Method for judging necking recess of micro-channel aluminum flat tube |
| CN113701544A (en) * | 2020-05-22 | 2021-11-26 | 北京机械设备研究所 | Flat pipe radiator and processing method of flat pipe of radiator |
| CN113701544B (en) * | 2020-05-22 | 2024-01-26 | 北京机械设备研究所 | Flat tube radiator and processing method of flat tube of radiator |
| WO2022166887A1 (en) * | 2021-02-05 | 2022-08-11 | 杭州三花微通道换热器有限公司 | Heat exchange tube and heat exchanger having same |
| CN113340129A (en) * | 2021-06-10 | 2021-09-03 | 祥博传热科技股份有限公司 | Efficient heat exchanger and processing technology thereof |
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Application publication date: 20180413 |