CN203190861U - Multi-hole folding micro-channel flat pipe for heat dissipation - Google Patents
Multi-hole folding micro-channel flat pipe for heat dissipation Download PDFInfo
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- CN203190861U CN203190861U CN 201320212491 CN201320212491U CN203190861U CN 203190861 U CN203190861 U CN 203190861U CN 201320212491 CN201320212491 CN 201320212491 CN 201320212491 U CN201320212491 U CN 201320212491U CN 203190861 U CN203190861 U CN 203190861U
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- channel flat
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Abstract
The utility model provides a multi-hole folding micro-channel flat pipe for heat dissipation. The multi-hole folding micro-channel flat pipe is formed by a single composite board in a bending mode and comprises a plurality of micro-channels extending in the longitudinal direction in parallel, the composite board is composed of three or more layers, wherein the two layers of the outmost sides are brazing filler metal layers, and one or more core material layers are located between the brazing filler metal layers. The multi-hole folding micro-channel flat pipe for the heat dissipation is small in size, simple in structure, high in heat exchange efficiency, resistant to corrosion, long in service life, convenient to machine, saving in materials, low in manufacturing cost, stable in quality of finished products, strong in pressure bearing capacity, safe, reliable and capable of being used for equipment such as automobiles/domestic air conditioners, intercoolers, oil coolers and fan heaters and brazing type heat exchangers such as electrical component radiators.
Description
Technical field
The utility model relates to the folding micro-channel flat of a kind of porous for heat radiation, and relates more specifically to a kind of folding micro-channel flat of being made by the monolithic composite board with sandwich construction of the porous that is used for heat radiation.
Background technology
At present, industries such as automobile/domestic air conditioner, warm-air drier, electric elements radiator are extensive use of micro-channel flat as heat exchange element.And extrusion forming process is adopted in the machine-shaping of existing micro-channel flat usually, the forming process complexity, and the waste of material amount is big, and the production initial investment is big.And, because the process limitation of extrusion modling adopts the base material of extrusion forming process must have single structure, that is to say that substrate material is whole homogeneous, the micro-channel flat after the extrusion modling has single layer structure.As everyone knows, the single layer structure of this whole homogeneous is disadvantageous aspect anticorrosion, thereby the common corrosion resistance of squash type micro-channel tubes is poor, and heat exchanger performance can be along with using serious decline, and the life-span is short, has aggravated leakage problem in the pipe.Although can carrying out coating (for example zinc-plated) by the flat tube surface after shaping, this obtains corrosion resistance preferably, but, such coating can not get guaranteeing adding the man-hour inhomogeneities, and after using a period of time, this squash type micro-channel flat because the corrosion of this coating etc. causes easily in flat tube and the disengaging between the parts (for example fin) on every side.
Utility model patent CN202350609U discloses a kind of collapsible microchannel porous flat pipe, it is one-body molded after the circuitous bending of several times is folding by monomer thin plate two ends, its cross section is flat ellipse, includes several through circuitous bending pore that be folded to form and the space.But the structural parameters for each hole after being shaped do not specify, and this porous flat pipe easy explosion because bearing capacity is low when being applied to high-pressure system (for example using the system of R410A or R32).
Therefore, in order to satisfy the use needs of relevant industries, develop a kind of novel micro-channel flat corrosion-resistant, that pressure-bearing is high is the target that those skilled in the art pursue always.
The utility model content
The purpose of this utility model is the shortcoming and deficiency at existing squash type flat tube and collapsible flat tube, and a kind of novel micro-channel flat that is used for heat radiation is provided.
According to one side of the present utility model, a kind of micro-channel flat for heat radiation is provided, described micro-channel flat is formed by the bending of monolithic composite board, described micro-channel flat comprises a plurality of microchannels that longitudinally extend in parallel, described composite board can be made up of the layer more than three or three, wherein outermost two layers are solder layers, and the layer between described solder layer is one or more core layers.
Further, described micro-channel flat can have symmetrical structure on width.
Further, described micro-channel flat can have the microchannel more than ten or ten.
Further, the material of described core layer can be the Al-Mn alloy, and the material of described solder layer can be the Al-Si alloy.
Further, described micro-channel flat has upper wall portions, lower wall portion, left wall portion and right wall portion, when a correspondence position on short transverse in described upper wall portions and the described lower wall portion is two composite board, another is single composite board, and described left wall portion and described right wall portion can have arcuate shape and be single composite board structure.
Further, described arcuate shape can roughly be semicircle or half elliptic.
Further, described micro-channel flat is carried out soldering to contacted described solder layer then and is formed by described composite board is become wavy back folding and forming through roll bending processes repeatedly.
Further, described micro-channel flat inside has at outermost two outer passage on the described width, two adjacent joint passages and a plurality of center-aisles between described outer passage and described joint passage, two composite boards place in described upper wall portions and the described lower wall portion has weld part, and described center-aisle has near the roll bending portion described weld part.
Further, the arc radius of described weld part can be about 0.1mm, the roll bending angle of described roll bending portion can be 72 °-75 °, interior roll bending arc radius can be 0.4mm-0.5mm, described joint width of channel can be 1.25mm-1.30mm, the width of described center-aisle can be 1.30mm-1.35mm, and the thickness of described composite board can be 0.24mm-0.26mm.
Further, the width of the outline of described micro-channel flat can be 16mm roughly, highly can be 1.8mm roughly; Perhaps the width of the outline of described micro-channel flat can be 18mm roughly, highly can be 1.3mm roughly.
The base material that micro-channel flat of the present utility model is selected for use is the composite board of sandwich construction, and is corrosion-resistant, long service life.The utility model has a wide range of applications in fields such as Thermal Performance of Micro Channels, specifically can be applicable to equipment such as automobile/domestic air conditioner, charge air cooler, oil cooler, warm-air drier, and brazing heat exchanger such as electric elements radiator.
Can understand these and other feature of the present utility model, aspect and advantage more by reference the embodiments described below, and will describe these and other feature, aspect and advantage with reference to the embodiments described below.
Description of drawings
According to the following detailed description of carrying out by reference to the accompanying drawings, above-mentioned and other purpose of the present utility model, characteristics and advantage will become apparent, wherein:
Fig. 1 is the end profile schematic diagram according to micro-channel flat of the present utility model, wherein shows the cross-section structure of the part of composite board.
Fig. 2 is the schematic diagram according to the relative dimensions that relates to roll bending technology of micro-channel flat of the present utility model.
Fig. 3 is the partial enlarged drawing according to the schematic diagram of the part of micro-channel flat of the present utility model and soldering position.
The specific embodiment
Embodiment of the present utility model is discussed now, there is shown one or more examples of embodiment.But, should be understood that, provide embodiment below by the mode that the utility model is described, and embodiment and being not interpreted as restriction of the present utility model.For example, the feature that illustrates or be described as the part of an embodiment can use to produce another embodiment with another embodiment.The utility model is intended to comprise these and other modifications and variations, as they within scope and spirit of the present utility model.
Fig. 1 is the end profile schematic diagram according to the micro-channel flat 1 of embodiment of the present utility model, wherein shows the cross-section structure of the part of composite board.As shown in Figure 1, the micro-channel flat 1 of present embodiment is formed by monolithic composite board 2 bendings with sandwich construction, wherein composite board 2 is three-decker, namely have as outermost two solder layers 21 and the core layer 22 between two solder layers 21,23, the core layer adopts the Al-Mn alloy material, and two solder layers all adopt the Al-Si alloy.
As shown in Figure 1, this micro-channel flat 1 has the symmetrical structure that is surrounded by the upper wall portions 11 that forms its general outline, lower wall portion 12, left wall portion 13 and right wall portion 14 on the whole.Along in each half part on the width of the width L of the outline of micro-channel flat 1, upper wall portions 11 and lower wall portion 12 all are single composite board 16 on width and two composite board 17 replaces structure arranged, wherein single composite board 16 refers to the non-touching structure of composite board, the structure that namely only has the single layer composite material, and two composite board 17 refers to the structure that contacted composite board welds together.The outer surface of upper wall portions 11 and lower wall portion 12 is smooth, in order to weld with miscellaneous part.In described upper wall portions 11 and the described lower wall portion 12 one when being two composite board along the correspondence position on the short transverse of the height H of micro-channel flat, another is single composite board.The shape of left side wall portion 13 and right wall portion 14 is roughly outwards outstanding semicircle, and is single composite board structure.Should be understood that the shape of left wall portion 13 and right wall portion 14 can be roughly outwards outstanding half elliptic.
This micro-channel flat 1 is by monolithic composite board 2 being become wavy back folding and forming through roll bending processes repeatedly, then contacted described solder layer 21,23 being carried out soldering and form.Two composite boards place in upper wall portions 11 and the lower wall portion 12 has weld part 24, and described center-aisle has near the roll bending portion 25 described weld part 24.Since adopt the roll bending soldering processes to process according to micro-channel flat of the present utility model, thus easy to process, economical with materials, low cost of manufacture, end product quality is stable.
This micro-channel flat 1 inside has ten microchannels, namely, outermost two outer passage 31 on the width of micro-channel flat 1, two adjacent joint passages 32 and in outer passage 31 with engage a plurality of center-aisles 33 between the passage 32, wherein outer passage 31, joint passage 32 and center-aisle 33 extend in parallel along the longitudinal direction of this micro-channel flat 1, between the described center-aisle 33, center-aisle 33 with engage between the passage 32 and center-aisle 33 and outer passage 31 between form crimp during by roll bending single composite board separate, separated by two composite boards between the adjacent joint passage 32.Each center-aisle 33 has close shape.The place, bight of the two composite boards between the adjacent joint passage 32 is roughly the right angle.The cross section of arranging ten microchannels that presents of this micro-channel flat 1 increases heat exchange area, and in the burst tearing test that carries out, compare with the collapsible micro-channel flat of existing octal, the burst pressure that adopts the collapsible micro-channel flat of ten pore structures can bear has improved 20%, bearing capacity is strong, and is safe and reliable.Should be understood that this micro-channel flat 1 can have the microchannel more than ten.
In the present embodiment, the width L of the outline of micro-channel flat is 16mm roughly, and height H is 1.8mm roughly.Should be understood that as required, the width L of the outline of micro-channel flat can be 18mm roughly, height H can be 1.3mm roughly.
Fig. 2 is the schematic diagram according to the relative dimensions that relates to roll bending technology of micro-channel flat of the present utility model.In the present embodiment, the thickness H1 of described composite board is about 0.25mm.The width A that engages passage 32 is 1.25mm-1.30mm, and the scope of the width B of center-aisle 33 is about 1.30mm-1.35mm.The roll bending angle θ of described roll bending portion 25 is 72 °-75 °, and interior roll bending arc radius R is 0.4mm-0.5mm.
Fig. 3 is the partial enlarged drawing according to the schematic diagram of the part of micro-channel flat of the present utility model and soldering position.As shown in Figure 3, the arc radius R of weld part 24
1Be about 0.1mm.
When micro-channel flat 1 is installed, smooth upper wall portions 11 and lower wall portion 12 and smooth left wall portion 13 and right wall portion 14 and welding such as fin, thermal-collecting tube.In use, cooling agent flows through each microchannel so that with parts or surrounding environment are carried out heat exchange on every side.Because the Al-Si alloy as solder layer itself has antisepsis, so micro-channel flat of the present utility model is equivalent to have three layers of anti-corrosion material, thereby can effectively improve Corrosion Protection, prolong the service life of micro-channel flat.
Should be understood that the described composite board in above-described embodiment can adopt has four layers and more multi-layered composite board, namely can have two-layer and above core layer.
According to micro-channel flat heat exchange efficiency height of the present utility model, volume is little, and is simple in structure, reduced processing cost effectively, improved decay resistance, can satisfy multiple industry to the demand of radiating element.
Though based on the current preferred embodiment that is considered to the utility model is had been described in detail in order to exemplify illustrative purposes, but should be understood that, these details just are used for exemplifying explanation, and the utility model is not limited to disclosed embodiment, and is intended to contain modification and equivalent arrangements in the spirit and scope that fall within claims.For example, it being understood that can be with one or more features of any embodiment and one or more feature combination of other embodiment arbitrarily.
Claims (10)
1. micro-channel flat that is used for heat radiation, it is characterized in that, described micro-channel flat is formed by the bending of monolithic composite board, described micro-channel flat comprises a plurality of microchannels that longitudinally extend in parallel, described composite board is made up of the layer more than three or three, wherein outermost two layers are solder layers, and the layer between described solder layer is one or more core layers.
2. micro-channel flat according to claim 1 is characterized in that, described micro-channel flat has symmetrical structure on width.
3. micro-channel flat according to claim 1 is characterized in that, described micro-channel flat has the microchannel more than ten or ten.
4. micro-channel flat according to claim 1 is characterized in that, the material of described core layer is the Al-Mn alloy, and the material of described solder layer is the Al-Si alloy.
5. according to each the described micro-channel flat among the claim 1-4, it is characterized in that, described micro-channel flat has upper wall portions, lower wall portion, left wall portion and right wall portion, when a correspondence position on short transverse in described upper wall portions and the described lower wall portion is two composite board, another is single composite board, and described left wall portion and described right wall portion have arcuate shape and be single composite board structure.
6. micro-channel flat according to claim 5 is characterized in that, described arcuate shape roughly is semicircle or half elliptic.
7. micro-channel flat according to claim 5 is characterized in that, described micro-channel flat is carried out soldering to contacted described solder layer then and formed by described composite board is become wavy back folding and forming through roll bending processes repeatedly.
8. micro-channel flat according to claim 7, it is characterized in that, described micro-channel flat inside has at outermost two outer passage on the described width, two adjacent joint passages and a plurality of center-aisles between described outer passage and described joint passage, two composite boards place in described upper wall portions and the described lower wall portion has weld part, and described center-aisle has near the roll bending portion described weld part.
9. micro-channel flat according to claim 8, it is characterized in that, the arc radius of described weld part is about 0.1mm, the roll bending angle of described roll bending portion is 72 °-75 °, interior roll bending arc radius is 0.4mm-0.5mm, described joint width of channel is 1.25mm-1.30mm, and the width of described center-aisle is 1.30mm-1.35mm, and the thickness of described composite board is 0.24mm-0.26mm.
10. micro-channel flat according to claim 9 is characterized in that, the width of the outline of described micro-channel flat is 16mm roughly, highly is 1.8mm roughly; Perhaps the width of the outline of described micro-channel flat is 18mm roughly, highly is 1.3mm roughly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212491 CN203190861U (en) | 2013-04-24 | 2013-04-24 | Multi-hole folding micro-channel flat pipe for heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212491 CN203190861U (en) | 2013-04-24 | 2013-04-24 | Multi-hole folding micro-channel flat pipe for heat dissipation |
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| Publication Number | Publication Date |
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| CN203190861U true CN203190861U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320212491 Expired - Lifetime CN203190861U (en) | 2013-04-24 | 2013-04-24 | Multi-hole folding micro-channel flat pipe for heat dissipation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743279A (en) * | 2013-12-31 | 2014-04-23 | 南宁八菱科技股份有限公司 | Wave-shaped multi-channel self-brazing cooling pipe |
| CN104141527A (en) * | 2014-07-02 | 2014-11-12 | 北京航空航天大学 | Inter-stage heat exchange method of turbochargers |
| CN106403682A (en) * | 2016-08-31 | 2017-02-15 | 上海交通大学 | Novel micro-channel flat pipe machined by roll-bending brazing process |
| CN106403681A (en) * | 2016-08-31 | 2017-02-15 | 上海交通大学 | End part reinforced micro-channel flat pipe machined by roll-bending brazing process |
| CN107000007A (en) * | 2014-11-25 | 2017-08-01 | 萨帕股份公司 | Many aperture extruded tube designs |
| CN107270760A (en) * | 2017-08-03 | 2017-10-20 | 常州凯微管业科技有限公司 | A kind of embedded channel heat exchanger folded tube and its processing method |
| CN107504853A (en) * | 2017-09-20 | 2017-12-22 | 泰安鼎鑫冷却器有限公司 | A kind of high-strength combination formula radiating tube |
| CN108697029A (en) * | 2017-04-07 | 2018-10-23 | 株式会社认知显示 | Heat dissipation board fabrication method for showing equipment |
| 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 |
| CN116921791A (en) * | 2023-09-15 | 2023-10-24 | 淄博市特种设备检验研究院 | Brazing forming treatment system for steel plate type radiator |
-
2013
- 2013-04-24 CN CN 201320212491 patent/CN203190861U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743279A (en) * | 2013-12-31 | 2014-04-23 | 南宁八菱科技股份有限公司 | Wave-shaped multi-channel self-brazing cooling pipe |
| CN104141527A (en) * | 2014-07-02 | 2014-11-12 | 北京航空航天大学 | Inter-stage heat exchange method of turbochargers |
| CN107000007A (en) * | 2014-11-25 | 2017-08-01 | 萨帕股份公司 | Many aperture extruded tube designs |
| CN107000007B (en) * | 2014-11-25 | 2019-10-01 | 萨帕股份公司 | Porous mouth extruded tube design |
| CN106403682A (en) * | 2016-08-31 | 2017-02-15 | 上海交通大学 | Novel micro-channel flat pipe machined by roll-bending brazing process |
| CN106403681A (en) * | 2016-08-31 | 2017-02-15 | 上海交通大学 | End part reinforced micro-channel flat pipe machined by roll-bending brazing process |
| CN108697029A (en) * | 2017-04-07 | 2018-10-23 | 株式会社认知显示 | Heat dissipation board fabrication method for showing equipment |
| CN107270760B (en) * | 2017-08-03 | 2023-09-15 | 常州凯微管业科技有限公司 | Folding tube of embedded channel heat exchanger and processing method thereof |
| CN107270760A (en) * | 2017-08-03 | 2017-10-20 | 常州凯微管业科技有限公司 | A kind of embedded channel heat exchanger folded tube and its processing method |
| CN107504853A (en) * | 2017-09-20 | 2017-12-22 | 泰安鼎鑫冷却器有限公司 | A kind of high-strength combination formula radiating tube |
| 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 |
| CN116921791A (en) * | 2023-09-15 | 2023-10-24 | 淄博市特种设备检验研究院 | Brazing forming treatment system for steel plate type radiator |
| CN116921791B (en) * | 2023-09-15 | 2023-11-14 | 淄博市特种设备检验研究院 | Brazing forming treatment system for steel plate type radiator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201807 Jiading District Jia Tang Road, Shanghai, No. 1111 Patentee after: GRANGES AB Address before: 201807 Jiading District Jia Tang Road, Shanghai, No. 1111 Patentee before: SAPA HEAT TRANSFER SHANGHAI Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |