CN101870023A - Clamping device for welding heat exchanger - Google Patents
Clamping device for welding heat exchanger Download PDFInfo
- Publication number
- CN101870023A CN101870023A CN201010212932A CN201010212932A CN101870023A CN 101870023 A CN101870023 A CN 101870023A CN 201010212932 A CN201010212932 A CN 201010212932A CN 201010212932 A CN201010212932 A CN 201010212932A CN 101870023 A CN101870023 A CN 101870023A
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- CN
- China
- Prior art keywords
- heat exchanger
- clamping device
- buffer unit
- welding heat
- waveform
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a clamping device for welding a heat exchanger, comprising a pair of holders and a buffer device. The buffer device is arranged between the holders and the heat exchanger when in use. The clamping device can efficiently solve the problems of side fin lodging, side fin dropping, disordered and uneven side fins and the like.
Description
Technical field
The present invention relates to a kind of clamping device of welding heat exchanger.
Background technology
A kind of as shown in Figure 1 typical heat exchanger 100 adopts material manufacturings such as aluminium, comprises a pair of header 101 that roughly is parallel to each other and is separated from each other; Be arranged on a plurality of flat tubes 103 between a pair of header 203; And be arranged on fin 105 between the flat tube 103.Fixedly connected with two headers 101 respectively in the two ends of flat tube 103, flat tube 103 extends along first direction A1, that is, the axially parallel of flat tube 103 is in first direction A1.Heat exchanger 100 both sides are provided with side plate 107.Side plate 107 is not connected with header 101, and heat exchanging device core body plays a protective role.Be provided with limit wing 109 between side plate 107 and two outside flat tubes 103.The longitudinal extension direction of the limit wing 109 of heat exchanger is roughly first direction A1.
By add scolder on the material in advance, by after the heat exchanger structure form assembling, utilize the soldering oven soldering, disposable each parts is welded together, form heat exchanger 100.
In heat exchanger 100 process, utilize the header 101, flat tube 103, fin 105, limit wing 109, side plate 107 etc. of clamping device 200 ' after will assembling to clamp after assembling, this clamping device 200 ' can comprise the holder 203 that is used for clamping heat exchanger 100 such as stainless steel (tying up bar), and make holder 203 heat exchanging devices 100 produce predetermined chucking power such as the strapping 205 of steel band not or special fixture etc.Thus, place holders 203, adopt strapping 205 to bind or the special fixture heat exchanger 100 that is fixedly clamped in the heat exchanger 100 both sides side plates outside.Then, integral body enters the soldering oven welding.
In the welding process of heat exchanger 100, because the thermal coefficient of expansion of aluminium is bigger than steel, it is big that the power of tying up that steel strapping 205 and holder 203 apply becomes, promptly on second direction A2 perpendicular to described first direction A1, the side plate 107 and the limit wing 109 of heat exchanger 100 are subjected to excessive extruding force, occur 109 lodging of limit wing easily, fall limit wing 109, limit wing 109 chaotic unequal problems.In addition; for the heat exchanger of other form and strapping or special fixture also similar problem may appear; because the thermal expansion of strapping or special fixture distortion need be less than the thermal expansion distortion of heat exchanger, with the clamping force of guaranteeing that heat exchanger is scheduled in heating process usually.
Summary of the invention
The clamping device that the purpose of this invention is to provide a kind of welding heat exchanger, this clamping device can alleviate heat exchanger makes heat exchanger be subjected to excessive extruding force owing to exchanger heat expands in welding process.
According to an aspect of the present invention, the invention provides a kind of clamping device of welding heat exchanger, comprising: a pair of holder, and buffer unit, buffer unit described in the use is arranged between described holder and the heat exchanger.In the process of welding heat exchanger (for example, in the process of utilizing the soldering oven brazed heat exchanger), buffer unit prevents thus that owing to the thermal expansion of heat exchanger is extruded distortion the extruding force that heat exchanger is subjected to from surpassing the pressure that allows.Clamping device of the present invention can effectively solve limit wing lodging, fall limit wing and the chaotic unequal problem of limit wing.
Description of drawings
Fig. 1 illustrates the schematic diagram that existing clamping device clamps the state of heat exchanger.
Fig. 2 illustrates the schematic diagram of the state of clamping device clamping heat exchanger according to an embodiment of the invention.
Fig. 3 illustrates the schematic diagram according to the buffer unit of the first embodiment of the present invention.
Fig. 4 illustrates the schematic diagram of buffer unit according to a second embodiment of the present invention.
Fig. 5 illustrates the schematic diagram of the buffer unit of a third embodiment in accordance with the invention.
Fig. 6 illustrates the schematic diagram of the buffer unit of a fourth embodiment in accordance with the invention in user mode.
Fig. 7 illustrates according to a fifth embodiment of the invention buffer unit at the schematic diagram of user mode.
Fig. 8 illustrates according to a sixth embodiment of the invention buffer unit at the schematic diagram of user mode.
The specific embodiment
The present invention will be further described below in conjunction with the drawings and the specific embodiments.
Fig. 2 shows the schematic diagram of the state of clamping device clamping heat exchanger according to an embodiment of the invention.As shown in Figure 2, heat exchanger 100 comprises: a pair of header 101 that roughly is parallel to each other and is separated from each other; Be arranged on a plurality of flat tubes 103 that roughly extend between a pair of header 101 (that is, flat tube 103 axially be roughly parallel to first direction A1) along first direction A1; Be arranged on the fin 105 between the flat tube 103; The side plate 107 of heat exchanger 100 both sides; And the limit wing 109 between side plate 107 and two outside flat tubes 103.The limit wing 109 of heat exchanger 100 and the longitudinal extension direction of side plate 107 are roughly first direction A1.Heat exchanger 100 can be such as any suitable heat exchangers such as micro-channel heat exchangers.
In the process of heat exchanger 100, the heat exchanger 100 after utilizing the clamping device 200 of welding heat exchanger 100 to assemble clamps.This clamping device 200 can comprise a pair of holder 203 such as stainless steel, and makes holder 203 heat exchanging devices 100 produce clamping parts such as the strapping 205 such as steel band (example of clamping part) of predetermined chucking power or special fixture.Clamping device 200 also comprises buffer unit 30, and buffer unit described in the use 30 is arranged between described holder 203 and the heat exchanger 100.In the process of utilizing soldering oven brazed heat exchanger 100, buffer unit 30 prevents thus that owing to the thermal expansion of heat exchanger 100 is extruded distortion the extruding force that heat exchanger 100 is subjected to from surpassing the pressure that allows.For example, prevent that pressure that heat exchanger 100 is subjected to from surpassing the pressure of permission of the limit wing 109 of heat exchanger 100.Buffer unit described in the use 30 can be arranged between the side plate 107 of described holder 203 and heat exchanger 100.During being configured to use, extends by buffer unit 30 along first direction A1 (promptly being roughly parallel to the axial or limit wing 109 of the flat tube 103 of heat exchanger 100), and on the second direction A2 perpendicular to described first direction A1, the rigidity of buffer unit 30 can be less than the rigidity of heat exchanger 100.As selection, on second direction A2, the rigidity of buffer unit 30 can be less than the rigidity of limit wing 109.Buffer unit 30 can be elongate articles or any other suitable components.
As shown in Figure 2, buffer unit 30 can comprise waveform spare 300.
Fig. 3 illustrates the schematic diagram according to the buffer unit 30 of the first embodiment of the present invention.As shown in Figure 3, buffer unit 30 is made of dome waveform spare 300, and each waveform portion 301 of described waveform spare 300 has two roughly straight parts 3011, with the convex surface part 3013 that is connected two roughly straight parts 3011.Each waveform portion 301 of described waveform spare 300 has line of symmetry 3015, at least two straight parts 3011 of each waveform portion 301 of described waveform spare 300 are roughly symmetrical with respect to line of symmetry 3015, and described line of symmetry 3015 becomes predetermined angle theta with respect to described first direction A1.The scope of predetermined angle theta can be 45 °≤θ≤90 ° or other suitable scope.In addition, waveform spare 300 can be than the thin thickness on the second direction A2 of limit wing 109 at the thickness on the second direction A2.Waveform spare 300 can adopt the material the same with limit wing 109.As selection, waveform spare 300 also can adopt other material manufacturings softer than aluminium flake.In addition, the shape of waveform spare 300 can be identical with the shape of limit wing 109, and the thickness of making the sheet material of waveform spare 300 can be than the thin thickness of the sheet material of making limit wing 109, or make the thickness of the sheet material of waveform spare 300 can be identical with the thickness of the sheet material of making limit wing 109.
Fig. 4 illustrates the schematic diagram of buffer unit according to a second embodiment of the present invention.Except the content that describes below, the buffer unit 30 of second embodiment can be identical at aspects such as structure and materials with the buffer unit 30 of first embodiment.
As shown in Figure 4, buffer unit 30 according to a second embodiment of the present invention comprises wedge angle waveform spare 300A, and each waveform portion 301A of waveform spare 300A has two roughly straight part 3011A, and two roughly straight part 3011A have angle.Each waveform portion 301A has line of symmetry 3015A, at least two straight part 3011A of each waveform portion 301A of described waveform spare 300A are roughly symmetrical with respect to line of symmetry 3015A, described line of symmetry 3015A becomes predetermined angle theta with respect to described first direction A1, and the scope of predetermined angle theta can be 45 °≤θ≤90 ° or other suitable scope.
Fig. 5 illustrates the schematic diagram of the buffer unit 30 of a third embodiment in accordance with the invention.Except the content that describes below, the buffer unit 30 of the 3rd embodiment can be identical at aspects such as structure and materials with the buffer unit 30 of first embodiment.
As shown in Figure 5, the buffer unit 30 of a third embodiment in accordance with the invention comprises flat-topped waveform spare 300B, each waveform portion 301B of waveform spare 300B has two roughly straight part 3011B, with the straight top portion 3013B that is connected two roughly straight part 3011B.Straight top portion 3013B can become predetermined angular along first direction A1 extension or with first direction A1.Each waveform portion 301B has line of symmetry 3015B, at least two straight part 3011B of each waveform portion 301B of described waveform spare 300B are roughly symmetrical with respect to line of symmetry 3015B, described line of symmetry 3015B becomes predetermined angle theta with respect to described first direction A1, and the scope of predetermined angle theta can be 45 °≤θ≤90 ° or other suitable scope.
The embodiment that buffer unit 30 comprises waveform spare 300,300A or 300B has more than been described.As selection, buffer unit 30 also can comprise spring, and for example the cross section of spring can have π shape shape, or spring can be a helical spring etc.
Fig. 6 illustrates the schematic diagram of the buffer unit of a fourth embodiment in accordance with the invention in user mode.As shown in Figure 6, spring 300C comprises the first plate 301C with first direction A1 almost parallel, and a pair of second plate 303C, the described a pair of second plate 303C extends with respect to described first direction A1 obliquely from the surface of the described first plate 301C towards the direction away from the surface of the described first plate 301C, and for example a pair of second plate 303C remotely extends mutually gradually.Among the figure, the spacing of a pair of second plate 303C strengthens on the direction away from the surface of the described first plate 301C gradually.The end sections 305C away from the surface of the described first plate 301C of the second plate 303C can be roughly parallel to described first direction A1.The mid portion of a pair of second plate 303C roughly becomes curved surface.
Fig. 7 illustrates according to a fifth embodiment of the invention buffer unit at the schematic diagram of user mode.As shown in Figure 7, spring 300D comprises the first plate 301D with first direction A1 almost parallel, and a pair of second plate 303D, the described a pair of second plate 303D extends with respect to described first direction A1 obliquely from the surface of the described first plate 301D towards the direction away from the surface of the described first plate 301D, and for example a pair of second plate 303D remotely extends mutually gradually.The end sections 305D away from the surface of the described first plate 301D of the second plate 303D can be roughly parallel to described first direction A1.The mid portion of a pair of second plate 303D roughly is straight.
Fig. 8 illustrates according to a sixth embodiment of the invention buffer unit at the schematic diagram of user mode.This buffer unit comprises helical spring 300E.
Before heat exchanger 100 enters soldering oven welding, on one side or place a buffer unit between the side plate 107 on both sides and the holder 203.On the direction of strapping 205, described buffer unit is than limit wing 109 easy deformation more.According to welding requirements, buffer unit can bear the welding temperature in the soldering oven, for example 600-700 ° temperature.
When heat exchanger materials is expanded with heat and contract with cold, distortion is concentrated on this buffer unit, thereby effectively prevented the distortion of heat exchanger 100.Because buffer unit is than limit wing 109 easy deformation more, so buffer unit by distortion, for the expansion of flat tube 103, fin 105 provides the space, has been protected limit wing 109 effectively.
Although described several embodiments of the present invention above, the present invention is not limited to the foregoing description.For example; in the foregoing description; buffer unit is used to protect the limit wing 109 of heat exchanger 100; but buffer unit also can be used to protect the parts of other heat exchanger; as a kind of selectable scheme, the rigidity of buffer unit can be littler than the rigidity of heat exchanger integral rigidity or part parts on described second direction thus.
In addition, the rigidity of buffer unit also can be more than or equal to the rigidity of limit wing 109 on second direction, as long as the distortion that buffer unit produces in welding process makes extruding force that limit wing 109 is subjected in allowed limits.
In addition, it can be seen from the above, and buffer unit of the present invention can be made of any suitable spring.
In addition, also can be used for the otherwise situation of welding heat exchanger according to buffer unit of the present invention, clamping device promptly of the present invention can be used for the Welding of Heat-exchanger of variety of way, for example, even welding heat exchanger in soldering oven can not use clamping device of the present invention yet.
Moreover the technical characterictic in the above embodiment of the present invention can make up mutually, and forms new technical scheme.
Claims (14)
1. the clamping device of a welding heat exchanger comprises:
A pair of holder, and
Buffer unit, buffer unit described in the use is arranged between described holder and the heat exchanger.
2. the clamping device of welding heat exchanger according to claim 1, wherein:
Buffer unit is configured in use on the axial direction perpendicular to described flat tube, and the rigidity of buffer unit is less than the rigidity of heat exchanger.
3. the clamping device of welding heat exchanger according to claim 1, wherein:
On the axial direction perpendicular to described flat tube, the rigidity of buffer unit was less than the rigidity of the limit wing of heat exchanger during buffer unit was configured to use.
4. according to the clamping device of claim 2 or 3 described welding heat exchangers, wherein:
Described buffer unit comprises waveform spare.
5. the clamping device of welding heat exchanger according to claim 4, wherein:
Described waveform spare is of similar shape with the limit wing of heat exchanger.
6. the clamping device of welding heat exchanger according to claim 4, wherein:
Each waveform portion of described waveform spare has two roughly straight parts, and two roughly straight parts have angle.
7. the clamping device of welding heat exchanger according to claim 4, wherein:
Each waveform portion of described waveform spare has two roughly straight parts, with convex surface part that is connected two roughly straight parts or straight top portion.
8. according to the clamping device of claim 6 or 7 described welding heat exchangers, wherein:
Each waveform portion of described waveform spare has line of symmetry, and at least two straight parts of each waveform portion of described waveform spare are roughly symmetrical with respect to line of symmetry, and described line of symmetry is with respect to the axial one-tenth predetermined angular of described flat tube.
9. the clamping device of welding heat exchanger according to claim 8, wherein:
The scope of described predetermined angular is that 45 degree are to 90 degree.
10. according to the clamping device of claim 2 or 3 described welding heat exchangers, wherein:
Described buffer unit comprises spring.
11. the clamping device of welding heat exchanger according to claim 10, wherein:
Described spring comprises first plate with the axial almost parallel of described flat tube, and a pair of second plate, described a pair of second plate from the surface of described first plate towards away from the direction on the surface of described first plate and remotely extend gradually mutually.
12. the clamping device of welding heat exchanger according to claim 11, wherein:
The end sections away from the surface of described first plate of described second plate be roughly parallel to described flat tube axially.
13. the clamping device of welding heat exchanger according to claim 10, wherein:
The cross section of described spring has roughly π shape shape.
14. according to the clamping device of any described welding heat exchanger in the claim 1 to 9, wherein:
Described buffer unit is an elongate articles, and is roughly parallel to the extending axially of flat tube of heat exchanger in using.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455921.1A CN105364256A (en) | 2010-06-25 | 2010-06-25 | Clamping device of welding heat exchanger |
| CN201010212932A CN101870023A (en) | 2010-06-25 | 2010-06-25 | Clamping device for welding heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212932A CN101870023A (en) | 2010-06-25 | 2010-06-25 | Clamping device for welding heat exchanger |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510455921.1A Division CN105364256A (en) | 2010-06-25 | 2010-06-25 | Clamping device of welding heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101870023A true CN101870023A (en) | 2010-10-27 |
Family
ID=42995209
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510455921.1A Pending CN105364256A (en) | 2010-06-25 | 2010-06-25 | Clamping device of welding heat exchanger |
| CN201010212932A Pending CN101870023A (en) | 2010-06-25 | 2010-06-25 | Clamping device for welding heat exchanger |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510455921.1A Pending CN105364256A (en) | 2010-06-25 | 2010-06-25 | Clamping device of welding heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105364256A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307812A (en) * | 2013-06-04 | 2013-09-18 | 浙江三可热交换系统有限公司 | Micro-channel heat exchanger for air conditioner of subway train |
| CN105057901A (en) * | 2015-07-31 | 2015-11-18 | 浙江金宸三普换热器有限公司 | Machining method of microchannel parallel flow heat exchanger |
| CN112894049A (en) * | 2020-12-25 | 2021-06-04 | 南京工业大学 | High-temperature brazing flexible bundling device and method for large plate-fin heat exchanger core |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09295132A (en) * | 1996-05-02 | 1997-11-18 | Sumitomo Light Metal Ind Ltd | Brazing method and cushion rail used therefor |
| US6269868B1 (en) * | 1999-07-02 | 2001-08-07 | Visteon Global Technologies, Inc. | Heat exchanger with variable compression side support |
| JP2001255091A (en) * | 2000-03-15 | 2001-09-21 | Zexel Valeo Climate Control Corp | Heat exchanger |
| JP2008036650A (en) * | 2006-08-02 | 2008-02-21 | Denso Corp | Method of manufacturing heat exchanger |
| CN201755710U (en) * | 2010-06-25 | 2011-03-09 | 三花丹佛斯（杭州）微通道换热器有限公司 | Clamping device for welding heat exchanger |
-
2010
- 2010-06-25 CN CN201510455921.1A patent/CN105364256A/en active Pending
- 2010-06-25 CN CN201010212932A patent/CN101870023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09295132A (en) * | 1996-05-02 | 1997-11-18 | Sumitomo Light Metal Ind Ltd | Brazing method and cushion rail used therefor |
| US6269868B1 (en) * | 1999-07-02 | 2001-08-07 | Visteon Global Technologies, Inc. | Heat exchanger with variable compression side support |
| JP2001255091A (en) * | 2000-03-15 | 2001-09-21 | Zexel Valeo Climate Control Corp | Heat exchanger |
| JP2008036650A (en) * | 2006-08-02 | 2008-02-21 | Denso Corp | Method of manufacturing heat exchanger |
| CN201755710U (en) * | 2010-06-25 | 2011-03-09 | 三花丹佛斯（杭州）微通道换热器有限公司 | Clamping device for welding heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307812A (en) * | 2013-06-04 | 2013-09-18 | 浙江三可热交换系统有限公司 | Micro-channel heat exchanger for air conditioner of subway train |
| CN105057901A (en) * | 2015-07-31 | 2015-11-18 | 浙江金宸三普换热器有限公司 | Machining method of microchannel parallel flow heat exchanger |
| CN112894049A (en) * | 2020-12-25 | 2021-06-04 | 南京工业大学 | High-temperature brazing flexible bundling device and method for large plate-fin heat exchanger core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105364256A (en) | 2016-03-02 |
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| ASS | Succession or assignment of patent right |
Owner name: SANHUA HOLDING GROUP CO., LTD. Free format text: FORMER OWNER: DANFOSS SANHUA (HANGZHOU) MICRO-CHANNEL HEAT EXCHANGER CO., LTD. Effective date: 20120719 Owner name: DANFOSS INC. Effective date: 20120719 |
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Address after: 310018, No. 289, No. 12, Hangzhou economic and Technological Development Zone Applicant after: DANFOSS SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Address before: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Applicant before: DANFOSS SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. |
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Effective date of registration: 20120719 Address after: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Applicant after: SANHUA HOLDING GROUP Co.,Ltd. Co-applicant after: DANFOSS A/S Address before: 310018, No. 289, No. 12, Hangzhou economic and Technological Development Zone Applicant before: DANFOSS SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. |
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Owner name: HANGZHOU SANHUA MICRO CHANNEL HEAT EXCHANGER CO., Free format text: FORMER OWNER: SANHUA HOLDING GROUP CO., LTD. Effective date: 20150225 |
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Effective date of registration: 20150225 Address after: 310018, No. 289-1, No. 12, Poplar Street, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang Applicant after: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Applicant after: DANFOSS A/S Address before: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Applicant before: SANHUA HOLDING GROUP Co.,Ltd. Applicant before: DANFOSS A/S |
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Application publication date: 20101027 |