CN101451793A - Heat exchanger and liquid collection tube thereof - Google Patents
Heat exchanger and liquid collection tube thereof Download PDFInfo
- Publication number
- CN101451793A CN101451793A CNA2007101882540A CN200710188254A CN101451793A CN 101451793 A CN101451793 A CN 101451793A CN A2007101882540 A CNA2007101882540 A CN A2007101882540A CN 200710188254 A CN200710188254 A CN 200710188254A CN 101451793 A CN101451793 A CN 101451793A
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- collector tube
- tube
- septalium
- dividing plate
- heat exchanger
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- 239000007788 liquid Substances 0.000 title 1
- 230000007704 transition Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 abstract description 17
- 230000000903 blocking effect Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a collector tube (2) of a heat exchanger, provided with a holding trough (24) corresponding to the internal wall of a clapboard trough (22) and a clapboard (23) periphery of which is provided with a boss(233); when the clapboard (23) is inserted in the clapboard trough (22), the holding trough (24) is in interference fit with the boss(233); after the clapboard (23) is inserted in the clapboard trough (22), the boss(233) can sink into the holding trough (24), so the holding trough (24) can accurately position the boss(233); because the boss(233) and the holding trough (24) are in interference fit and can be tightly occluded, the clapboard (23) is fixedly connected to the internal wall of the collector tube (2); consequently the welding precision of the clapboard (23) is high, and the reliability of the heat exchanger is improved.
Description
Technical field
The present invention relates to a kind of heat-mass exchange equipment assembly, particularly a kind of collector tube of heat exchanger.The invention still further relates to a kind of heat exchanger that comprises above-mentioned collector tube.
Background technology
Heat exchanger is an equipment of realizing that heat transmits between cold and hot fluid, is widely used in fields such as HVAC.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical heat exchanger in the prior art.
At present, a kind of more typical heat exchanger 1 comprises first collector tube 11, second collector tube 12 that is parallel to each other, and both are provided with usually vertically, and have the many radiating tubes that be arranged in parallel substantially 13 between the two.Respectively be provided with a plurality of radiating tube interface (not shown)s on first collector tube 11 and second collector tube, the 12 corresponding tube walls, the two ends of radiating tube 13 are gone in described first collector tube 11 and second collector tube 12 by described radiating tube interface plug-in mounting respectively, thereby both are communicated with.
In order to realize sufficient heat exchange as much as possible, the heat transferring medium circulation passage in the heat exchanger 1 need be made as the snakelike of bending usually, therefore need in first collector tube 11 and second collector tube 12, some lateral partitions 14 (being shown among Fig. 2) be set.Obviously, in order to form the circulation passage of described bending, all dividing plates 14 all should be located between the described radiating tube interface, and each dividing plate 14 should be arranged in first collector tube 11 and second collector tube 12 interlacedly.
Please refer to Fig. 2, Fig. 3 and Fig. 4, Fig. 2 is the schematic diagram of collector tube dividing plate fixed form shown in Figure 1; Fig. 3 is that collector tube shown in Figure 2 is along the cross-sectional schematic through its septalium; Fig. 4 is the structural representation of dividing plate shown in Figure 2.
The tube wall that first collector tube 11 is relative with described radiating tube interface is provided with septalium 111, and dividing plate 14 can be plugged in the septalium 111.
Yet because the length of first collector tube 11 is longer, its torsional strength is less, is distorted easily under the effect of external force, thereby causes septalium 111 to produce bigger deformation; On the other hand, before dividing plate 14 plug-in mountings being gone into septalium 111 back, both are welded in one, may need first collector tube 11 such as is carried, moves at operation, this can make 11 generations of first collector tube rock inevitably.Therefore, dividing plate 14 is difficult to keep it to be arranged in the position of septalium 111 before welding, so that dividing plate 14 is offset accurate position when welding; Sometimes dividing plate 14 even can from septalium 111, deviate from.This will bring very big inconvenience to the welding of dividing plate 14, and significantly reduce its welding precision, and then reduce the reliability of heat exchanger 1.
In addition, the heat exchanger 1 of above-mentioned prior art is when assembling, and dividing plate 14 always produces left or right skew in septalium 111, be difficult to exactly dividing plate 14 plug-in mountings be gone into the predeterminated position in the septalium 111.This will cause dividing plate 14 location inaccurate, can reduce its welding precision equally.
The problem of second collector tube, 12 median septum set-up modes and existence thereof is identical with first collector tube 11, repeats no more herein.
Therefore, how guaranteeing that dividing plate can plug-in mounting goes into the accurate position in the septalium, how to avoid dividing plate to produce displacement before welding in septalium, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The collector tube that the purpose of this invention is to provide a kind of heat exchanger, its dividing plate plug-in mounting are easily gone into accurate position in the septalium, and are difficult for producing in septalium displacement before welding.Another object of the present invention provides a kind of heat exchanger that comprises above-mentioned collector tube.
For solving the problems of the technologies described above, the invention provides a kind of collector tube of heat exchanger, comprise a plurality of radiating tube interfaces that are used to connect radiating tube; Annular tube wall between the adjacent described radiating tube interface is provided with septalium, wherein plug-in mounting dividing plate that described collector tube is spaced laterally apart; Described collector tube is provided with holding tank corresponding to the inwall of described septalium, and the edge of described dividing plate is provided with boss; When described dividing plate plug-in mounting was gone into described septalium, described holding tank and described boss formed interference fit.
Preferably, described septalium lays respectively at the relative both sides of described collector tube with described radiating tube interface; Described holding tank and described radiating tube interface homonymy.
Preferably, the tube wall between the described radiating tube interface has the central platform of outside protrusion, and described holding tank is located at the madial wall of described central platform.
Preferably, has the transition inclined-plane between described central platform and the described radiating tube interface.
Preferably, described transition inclined-plane is the arcwall face of projection laterally.
Preferably, described boss has the approaching face of terminad convergent, so that plug-in mounting is gone into described holding tank.
Preferably, the thickness of described dividing plate is slightly larger than the width of described septalium.
Preferably, described radiating tube interface is the flat mouth, and in the radially extension of described collector tube.
The present invention also provides a kind of heat exchanger that comprises the above collector tube.
Relative above-mentioned background technology, collector tube provided by the present invention is provided with holding tank on the inwall between its radiating tube interface; Simultaneously, be provided with the boss that shape and described holding tank adapt at the edge of its dividing plate; Described boss can form interference fit with described holding tank.Therefore, described dividing plate plug-in mounting is gone into after the septalium, and its boss can be absorbed in the described holding tank, and therefore described holding tank can carry out accurate in locating to described boss, thereby with the unique qualification in the position of described dividing plate in described septalium.That is, dividing plate can plug-in mounting be gone into the accurate position in the septalium.
On the other hand, described dividing plate plug-in mounting is gone into after the septalium, because described boss and described holding tank can form interference fit, both can realize tight interlock, thereby described dividing plate are fixedly connected on the inwall of described collector tube.Therefore, although the distortion of described collector tube can cause described septalium that bigger deformation takes place, rock although the welding of described dividing plate and described septalium can be produced the carrying of preceding described collector tube, but because the inwall of described dividing plate and described collector tube is snapped at one, described dividing plate still can keep its position that is arranged in described septalium, more can not deviate from from described septalium.That is, dividing plate is difficult for producing displacement in septalium before welding.
Therefore, technical scheme provided by the present invention can make things convenient for the welding operation of dividing plate, and significantly improves its welding precision, and then improves the reliability of heat exchanger.
Description of drawings
Fig. 1 is the structural representation of a kind of typical heat exchanger in the prior art;
Fig. 2 is the schematic diagram of collector tube dividing plate fixed form shown in Figure 1;
Fig. 3 is that collector tube shown in Figure 2 is along the cross-sectional schematic through its septalium;
Fig. 4 is the structural representation of dividing plate shown in Figure 2;
Fig. 5 provides the structural representation of a kind of specific embodiment of collector tube for the embodiment of the invention;
Fig. 6 is that collector tube shown in Figure 5 is along the cross-sectional schematic through its septalium;
Fig. 7 is the structural representation of dividing plate shown in Figure 5;
Fig. 8 is vertical cross-sectional schematic of collector tube shown in Figure 5.
The specific embodiment
Core of the present invention provides a kind of collector tube of heat exchanger, and a kind of heat exchanger that comprises above-mentioned collector tube; Its dividing plate plug-in mounting is easily gone into accurate position in the septalium, and is difficult for producing in septalium displacement before welding.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Please refer to Fig. 5, Fig. 6 and Fig. 7, Fig. 5 is that collector tube shown in Figure 5 is along the cross-sectional schematic through its septalium for the embodiment of the invention provides the structural representation of a kind of specific embodiment of collector tube, Fig. 6; Fig. 7 is the structural representation of dividing plate shown in Figure 5.
In a kind of specific embodiment, collector tube 2 provided by the present invention can be made by metal or metal alloy, is more commonly processed by aluminum pipe.
The sidewall of collector tube 2 is provided with at least one radiating tube interface 21, and radiating tube is fixedlyed connected with collector tube 2 by radiating tube interface 21; Both fixedly connected modes are generally welding, and particularly, both can be brazed in one.Obviously, the number of described radiating tube should equate with the number of radiating tube interface 21; Usually be provided with in parallel to each other between the described radiating tube, and preferably all perpendicular to collector tube 2.All keep between collector tube 2 and the described radiating tube being communicated with, so that heat transfer medium is mobile therein.Certainly, collector tube 2 also should comprise the flow channel and the flow pass of heat transfer medium in case of necessity.
The sidewall of collector tube 2 also is provided with septalium 22, in order to plug-in mounting dividing plate 23.Dividing plate 23 should be at the horizontally set of collector tube 2, that is, dividing plate 23 should be perpendicular to the tube wall of collector tube 2, so that it is spaced laterally apart collector tube 2.Therefore, septalium 22 also should be at the horizontally set of collector tube 2; In addition, septalium 22 should guarantee wherein can insert dividing plate 23 fully at collector tube 2 horizontal width.
Septalium 22 and radiating tube interface 21 best centers are arranged at the both sides of collector tube 2 symmetrically, bring very big facility can for like this plug-in mounting of dividing plate 23.Certainly, change the position that is provided with of septalium 22, make its suitable angle of central shaft rotation, also can realize the object of the invention around collector tube 2.
The effect of dividing plate 23 is that collector tube 2 is spaced laterally apart at it, and therefore, it should have the shape that inner chamber and septalium 22 with collector tube 2 adapt.
When plug-in mounting was gone into septalium 22, an end that at first enters was the front end of mainboard body 231, with the corresponding rear end that is mainboard body 231 of described front end.The rear end of mainboard body 231 is provided with connecting portion 232, and connecting portion 232 is the part annular slab, and its shape is preferably identical with the shape of septalium 22 horizontal cross-sections, and its thickness preferably equals the width of septalium 22.Connecting portion 232 is fixedly connected on one with mainboard body 231, and obviously, both also can be overall structures.
The both ends of dividing plate 23 connecting portions 232 have first blocking surface 2321, and the both ends of septalium 22 have second blocking surface 221.Dividing plate 23 plug-in mountings are gone in the process of septalium 22, and first blocking surface 2321 can stop second blocking surface 221, thereby tentatively limit the position that dividing plate 23 is arranged in septalium 22.
Yet, only also be not enough to realize accurate location to dividing plate 23 when dividing plate 23 plug-in mountings are gone in the septalium 22, be easy to generate left or right skew by above-mentioned first blocking surface 2321 and second blocking surface 221.On the other hand, dividing plate 23 plug-in mountings are gone into after the septalium 22, are welded in before the collector tube 2, may need collector tube 2 such as is carried, moves at operation, and dividing plate 23 probably is subjected to displacement from septalium 22, even deviates from.
For fear of the generation of above-mentioned rough sledding, the front end of dividing plate 23 mainboard bodies 231 further is provided with boss 233, and the front end of boss 233 autonomous plate bodys 231 laterally protrudes, and itself and mainboard body 231, connecting portion 232 are positioned at same plane substantially.
Simultaneously, holding tank 24 is set in the inwall of collector tube 2.The plane at holding tank 24 places should be perpendicular to the central axis of collector tube 2, and it should be provided with corresponding to septalium 22, and promptly holding tank 24 and septalium 22 should be positioned at the relative two side of collector tube 2 substantially.
Should choose the position that is provided with of holding tank 24 exactly, to guarantee that its boss 233 can be absorbed among the holding tank 24 just when dividing plate 23 when plug-in mounting is gone into septalium 22 exactly.So promptly can whether be absorbed in the holding tank 24, judge whether the plug-in mounting position of dividing plate 23 is accurate by judging boss 233.
As mentioned above, when dividing plate 23 plug-in mountings were gone into septalium 22, the boss 233 of its front end can be absorbed in the holding tank 24 of collector tube 2 inwalls, thereby can determine the position of dividing plate 3 exactly.In addition, holding tank 24 should form interference fit with boss 233, so that after dividing plate 23 plug-in mountings go in the septalium 22, holding tank 24 can interlock boss 233, thereby makes the position of dividing plate 23 can keep stable.Particularly, the thickness of dividing plate 23 boss 233 can be made as the width that is slightly larger than holding tank 24, thereby when plug-in mounting dividing plate 23, both can form above-mentioned interference fit.
When going into dividing plate 23 plug-in mountings in the septalium 22, by cooperating of holding tank 24 and boss 233, dividing plate 23 can be realized accurate location, and this position stability ground is kept.Therefore, mainboard body 231 is arranged in the inner chamber of collector tube 2 fully, because both shapes are identical, mainboard body 231 can be spaced laterally apart collector tube 2; Simultaneously, connecting portion 232 is arranged in septalium 22 fully, because the thickness of connecting portion 232 is slightly larger than the width of septalium 22, and both shapes are identical, and connecting portion 232 can make the lateral surface of collector tube 2 recover smooth just with septalium 22 complete filling.Then, dividing plate 23 and collector tube 2 can be welded in one, thereby finish the fitting operation of dividing plate 23.Particularly, dividing plate 23 preferably adopts soldering with the welding manner of collector tube 2.
The collector tube that the invention described above specific embodiment is provided is provided with holding tank on the inwall between its radiating tube interface; Simultaneously, be provided with the boss that shape and described holding tank adapt at the edge of its dividing plate; Described boss and described holding tank form interference fit.Therefore, described dividing plate plug-in mounting is gone into after the septalium, and its boss can be absorbed in the described holding tank, and therefore described holding tank can carry out accurate in locating to described boss, thereby with the unique qualification in the position of described dividing plate in described septalium.That is, dividing plate can plug-in mounting be gone into the accurate position in the septalium.
Moreover described dividing plate plug-in mounting is gone into after the septalium, because described lug boss and described holding tank can form interference fit, both can realize tight interlock, thereby described dividing plate are fixedly connected on the inwall of described collector tube.Therefore, although the distortion of described collector tube can cause described septalium that bigger deformation takes place, rock although the welding of described dividing plate and described septalium can be produced the carrying of preceding described collector tube, but because the inwall of described dividing plate and described collector tube is snapped at one, described dividing plate still can keep its position that is arranged in described septalium, more can not deviate from from described septalium.That is, dividing plate is difficult for producing displacement in septalium before welding.
Please refer to Fig. 8, Fig. 8 is vertical cross-sectional schematic of collector tube shown in Figure 5.
In order to obtain further technique effect, can carry out some improvement to the collector tube that the above-mentioned specific embodiment provided.
Such as, radiating tube interface 21 can be made as the flat mouth of pipe, and in the radially extension of collector tube 2.The tube wall that is preferably between the radiating tube interface 21 is provided with central platform 26, and central platform 26 outwards protrudes, and obviously, inner wall surface thereof then caves inward.Holding tank 24 thereby can be located at the internal face of described indent like this can be so that the formation of holding tank 24.
Go in the radiating tube interface 21 for the ease of described radiating tube plug-in mounting, and avoid radiating tube described in the plug-in mounting process and radiating tube interface 21 to be damaged, can between central platform 26 and radiating tube interface 21, transition inclined-plane 27 be set.Particularly, transition inclined-plane 27 can be the arcwall face transition face.
Boss 233 can also be provided with the approaching face of terminad convergent, so that its plug-in mounting is gone in the holding tank 24.
The thickness of dividing plate 23 can be slightly larger than the width of septalium 22, and therefore both can form suitable interference fit, and therefore dividing plate 23 can more stably keep it to be arranged in the position of septalium 22.
Heat exchanger provided by the present invention comprises two above-mentioned collector tubes 2 that are arranged in parallel, and in both relative radiating tube interfaces 21 the many radiating tubes that parallel is set, and described radiating tube all keeps being communicated with two collector tubes 2.Dividing plate in two collector tubes 2 is provided with staggeredly, so has tortuous MEDIA FLOW circulation passage in this heat exchanger.Because it comprises collector tube 2 provided by the present invention, so the reliability of this heat exchanger is significantly improved.Specifically can repeat no more with reference to above to the description of collector tube 2 herein.
More than a kind of collector tube provided by the present invention and the heat exchanger of using described collector tube are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1, a kind of collector tube of heat exchanger comprises a plurality of radiating tube interfaces (21) that are used to connect radiating tube; Annular tube wall between the adjacent described radiating tube interface (21) is provided with septalium (22), wherein plug-in mounting dividing plate (23) that described collector tube is spaced laterally apart; It is characterized in that described collector tube is provided with holding tank (24) corresponding to the inwall of described septalium (22), the edge of described dividing plate (23) is provided with boss (233); When described dividing plate (23) plug-in mounting was gone into described septalium (22), described holding tank (24) formed interference fit with described boss (233).
2, the collector tube of heat exchanger as claimed in claim 1 is characterized in that, described septalium (22) lays respectively at the relative both sides of described collector tube with described radiating tube interface (21); Described holding tank (24) and described radiating tube interface (21) homonymy.
3, the collector tube of heat exchanger as claimed in claim 2 is characterized in that, the tube wall between the described radiating tube interface (21) has the central platform (26) of outside protrusion, and described holding tank (24) is located at the madial wall of described central platform (26).
4, the collector tube of heat exchanger as claimed in claim 3 is characterized in that, has transition inclined-plane (27) between described central platform (26) and the described radiating tube interface (21).
5, the collector tube of heat exchanger as claimed in claim 4 is characterized in that, described transition inclined-plane (27) is protruding laterally arcwall face.
As the collector tube of each described heat exchanger in the claim 1 to 5, it is characterized in that 6, described boss (233) has the approaching face of terminad convergent, so that plug-in mounting is gone into described holding tank (24).
As the collector tube of each described heat exchanger in the claim 1 to 5, it is characterized in that 7, the thickness of described dividing plate (23) is slightly larger than the width of described septalium (22).
As the collector tube of each described heat exchanger in the claim 1 to 5, it is characterized in that 8, described radiating tube interface (21) is the flat mouth, and in the radially extension of described collector tube.
9, a kind of heat exchanger is characterized in that, comprises as each described collector tube in the claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101882540A CN101451793B (en) | 2007-11-30 | 2007-11-30 | Heat exchanger and liquid collection tube thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101882540A CN101451793B (en) | 2007-11-30 | 2007-11-30 | Heat exchanger and liquid collection tube thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101451793A true CN101451793A (en) | 2009-06-10 |
| CN101451793B CN101451793B (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101882540A Expired - Fee Related CN101451793B (en) | 2007-11-30 | 2007-11-30 | Heat exchanger and liquid collection tube thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101451793B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022949A (en) * | 2010-10-23 | 2011-04-20 | 山东早春创尔沃热泵技术有限公司 | Energy-saving gas-liquid separation device of air heat exchanger |
| CN102095329A (en) * | 2011-03-15 | 2011-06-15 | 上海威乐汽车空调器有限公司 | Liquid collection tube structure used for parallel flow evaporator |
| CN104674488A (en) * | 2015-03-03 | 2015-06-03 | 苏州华策纺织科技有限公司 | Connector for heat exchange flat tube and circular tube body of dye heating device of dyeing machine |
| CN114754607A (en) * | 2022-04-07 | 2022-07-15 | 杭州绿能新能源汽车部件有限公司 | Heat exchanger |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE174426T1 (en) * | 1990-10-08 | 1998-12-15 | Showa Aluminium Co Ltd | HEAT EXCHANGER |
| JP2000130984A (en) * | 1998-10-28 | 2000-05-12 | Zexel Corp | Header pipe for heat exchanger |
| DE10212306A1 (en) * | 2002-03-20 | 2003-10-02 | Behr Lorraine S A R L Europole | Brazed heat exchanger |
| JP2007101088A (en) * | 2005-10-05 | 2007-04-19 | Calsonic Kansei Corp | Tank structure for heat exchanger |
-
2007
- 2007-11-30 CN CN2007101882540A patent/CN101451793B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022949A (en) * | 2010-10-23 | 2011-04-20 | 山东早春创尔沃热泵技术有限公司 | Energy-saving gas-liquid separation device of air heat exchanger |
| CN102095329A (en) * | 2011-03-15 | 2011-06-15 | 上海威乐汽车空调器有限公司 | Liquid collection tube structure used for parallel flow evaporator |
| CN104674488A (en) * | 2015-03-03 | 2015-06-03 | 苏州华策纺织科技有限公司 | Connector for heat exchange flat tube and circular tube body of dye heating device of dyeing machine |
| CN114754607A (en) * | 2022-04-07 | 2022-07-15 | 杭州绿能新能源汽车部件有限公司 | Heat exchanger |
| CN114754607B (en) * | 2022-04-07 | 2023-01-20 | 杭州绿能新能源汽车部件有限公司 | Heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101451793B (en) | 2010-08-18 |
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Owner name: HANGZHOU SANHUA MICRO CHANNEL HEAT EXCHANGER CO., Free format text: FORMER OWNER: SANHUA DANFOSS (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER CO., LTD. Effective date: 20120626 |
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Effective date of registration: 20120626 Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Patentee after: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Address before: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Patentee before: DANFOSS SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. |
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