CN100542707C - The manufacture method of heat exchanger - Google Patents
The manufacture method of heat exchanger Download PDFInfo
- Publication number
- CN100542707C CN100542707C CNB2005800476515A CN200580047651A CN100542707C CN 100542707 C CN100542707 C CN 100542707C CN B2005800476515 A CNB2005800476515 A CN B2005800476515A CN 200580047651 A CN200580047651 A CN 200580047651A CN 100542707 C CN100542707 C CN 100542707C
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- holding device
- tube
- principal plane
- opening
- heat exchanger
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Abstract
The invention provides a kind of manufacture method of holding device of heat exchanger DC tube, described device has the opening that is used to admit DC tube.It is to be formed by first kind of forming method that described opening has the subregion at least, and also having other subregions at least is to be formed by second kind of forming method different with first kind of forming method.
Description
Technical field
The present invention relates to a kind of manufacture method of heat exchanger, in particular, is a kind of manufacture method that is used for the heat exchanger of automotive air-conditioning system or similar device, and this method also can be used for other heat exchanger.
Background technology
This heat exchanger has a plurality of DC tubes that are used to transmit cold-producing medium usually.Described DC tube inserts and is usually located in the tube sheet of DC tube bottom.
For satisfying this purpose, has the opening that DC tube can insert or pass on the tube sheet usually.The method of the existing described opening of multiple known manufacturing (mentioned flange hole promptly) in the prior art.For example described flange hole can produce by method for die cutting, perhaps tears the method moulding by other, as otch etc.
Yet under die-cut situation, opening produces by cutting method, and in tearing technology, and opening is to be extended by machinery and tear generation by material.
The advantage of clicking technique is to produce simply relatively, and the opening of generation or flange hole have the accuracy of height, and are suitable for producing any transverse shape.And when using incision process, can on the flange hole, form the importing inclined-plane of " funnel shaped " as a kind of method of processing flaky metallic material, therefore be easier to assemble and welding processing.In this case, when using the sheet metal spare of tape welding material coating, will have one deck welding coating in the seam or the bonding pad in DC tube and flange hole.
At last, the contact-making surface between flange hole or opening and the DC tube is bigger than the flange hole by punching molding, because the latter's contact-making surface maximum equals the thickness of tube sheet or current collector sheet material.
Summary of the invention
The objective of the invention is to utilize the advantage of these two kinds of methods at manufacture view.According to the present invention, this purpose is realized by the method with following characteristics.
Manufacture method by a kind of heat exchanger DC tube holding device of the present invention, described holding device has the opening that is used to admit DC tube, it is to be produced by first kind of forming method that described opening has the subregion at least, and also having other subregions at least is to be produced by second kind of forming method different with first kind of forming method.
Described forming method can be understood as any method that is suitable for the shape that base material (as the sheet material of tube sheet) moulding is predetermined, for example forming open or flange hole on base material.
Holding device can be understood as a kind of device of a zone of the DC tube of receivability at least, and as the DC tube bottom zone, the opening part of holding device is inserted in the bottom of DC tube.
Preferred first kind of forming method is clicking technique, and preferred second kind of forming method is to tear technology.
As mentioned above, clicking technique is a kind of method that produces opening by shear history.Tear and can be understood as a kind of method when technology has at least by stretching or tearing method generation opening.
Described opening has at least the subregion to produce by two kinds of diverse ways, and the subregion that this means opening is to be produced by a kind of forming method, as die-cut; And other subregions of opening are produced by another kind of forming method, tear more precisely.
Also having a kind of may be to use two kinds of forming methods simultaneously in predetermined zone and produce opening.
Those have the open area of the cross section of specific complexity, and the middle section very little as width produces by clicking technique, and other zones then produce by tearing technology.Preferably, first kind of forming method and second kind of forming method are simultaneous substantially.That is to say that two kinds of forming methods can finish in same process.
First kind of forming method also can carry out in different processing steps with second kind of forming method.Clicking technique can at first carry out, and then tears technology again; Can certainly tear technology earlier, then carry out clicking technique again.
The present invention also aims to provide a kind of method of making heat exchanger, in its production process, holding device is made by preceding method, and DC tube is connected on the holding device by method of attachment in part (cross section) at least then.
Here preferred method of attachment is welding and similar approach.Method of attachment can be applicable to after the generation of flange hole.Yet preferred, also can be at the metal sheet of promptly using at first tape welding material coating.In this case, at said method, particularly tear under the effect of technology, the flange hole can produce the edge that tape welding connects coating.Described edge or flange especially but be not unique, produce with the form that imports the inclined-plane, make assembling or welding process more convenient.
In addition, as previously mentioned, flange is used to increase the contact-making surface between flange hole and the DC tube, and this has simplified manufacturing, particularly welding process equally, and makes final products have higher sealing.
Purpose of the present invention also is to provide a kind of holding device that is used to support the heat exchanger DC tube, this holding device has a plurality of openings that are suitable for supporting DC tube, and opening is positioned on the predetermined principal plane of holding device substantially and predetermined periphery is arranged, by of the present invention, at least in the part neighboring area, opening has the edge that protrudes in principal plane, and the small part neighboring area that arrives almost is positioned at principal plane.
Described edge can be especially but not unique flange that is interpreted as around open circumferential.Principal plane can be understood as each independently present geometrical plane of opening.In one embodiment, principal plane is formed by sheet material to be processed itself.And tube sheet also can have a basal plane with respect to the principal plane horizontal-shift at opening place.
The zone that does not protrude in principal plane substantially can be understood as the zone of following non-flanged or flange, here " non-flanged " or " no flange " and do not mean that not allowing any projection that surmounts principal plane occurs.
In preferred embodiment, described edge points to the direction of DC tube bottom substantially from principal plane.This means that DC tube passes opening and is inserted on the holding device, and the direction that the direction that the edge protrudes principal plane and DC tube were inserted opening is identical.
Yet above mentioned edge also can tilt with respect to principal plane, constitutes to import the inclined-plane, is easier to assembling like this, especially is beneficial to being connected of opening and DC tube.
In preferred embodiment, described edge is vertical substantially protrudes in principal plane, and here, outstanding 0.3mm is preferably 0.5mm between the 2.0mm to 3.0mm from the plane at the edge, and more preferably 0.5mm is to 1.0mm.The height of described projection is by the decision of the width of the opening that is produced.
In preferred embodiment, described opening has the shape of elongation shape." elongation shape " can be understood as opening and has predetermined length, and its width is then significantly less than this length.Its reason is that DC tube is generally flat tube, its end have equally the elongation shape the cross section.
In preferred embodiment, the stub area of described opening does not protrude in principal plane substantially.This means and have in the open end zone or produce the gap.
In preferred embodiment, described opening has the less middle section of width.The middle section of DC tube is inserted in the middle section of described opening.The narrowed width of the middle section of DC tube is in order DC tube to be divided into two zones, preferably to have different flow directions in these two zones.
Preferably, described open central region does not protrude in principal plane substantially, this means that the zone does not have edge or flange in the central.
Because middle section has the width of minimizing, can finish by more accurate method manufacturing, especially but not unique, as almost completely not producing the clicking technique of flange.
In preferred embodiment, described principal plane is with respect to the tube sheet basal plane parallel offset of holding device.Described principal plane more approaches the bottom of DC tube with respect to the tube sheet basal plane of holding device.This means on the geometry meaning that DC tube not only protrudes in the tube sheet basal plane but also protrudes in principal plane.
The present invention also aims to provide a kind of heat exchanger, described heat exchanger comprises a plurality of DC tube and foregoing holding devices that are used to transmit cold-producing medium, and holding device is positioned at least one end segments of DC tube.In each above-mentioned embodiment, above-mentioned holding device also can be positioned on two end segments of DC tube.Preferably, heat exchanger also has a relative dividing plate perpendicular to the flange hole, thereby heat exchanger is divided into two flow regions.
Another preferred embodiment in, separating device, the definite dividing plate of saying so is in substantially parallel relationship to the fluid passage opening and arranges.Preferably, separating device is arranged in admits section, and this admittance section has the spigot surface that is used to support separating device.
Description of drawings
Below in conjunction with accompanying drawing advantage of the present invention and embodiment are elaborated.
Fig. 1 is the perspective view of holding device of the present invention.
Fig. 2 is the perspective view of the another kind of embodiment of holding device of the present invention.
Fig. 3 is the rearview of the another kind of embodiment of holding device of the present invention.
Fig. 4 is another view of holding device shown in Figure 2.
Fig. 5 is the rearview of the another kind of embodiment of holding device shown in Figure 2.
Fig. 6 is the exploded view of heat exchanger device.
Fig. 7 is the schematic diagram of heat exchanger shown in Figure 6.
Fig. 8 is the profile of the holding device shown in Fig. 6, corresponding cross section along the slit on the dividing plate.
Fig. 9 is the profile of the holding device shown in Fig. 6, the cross section of non-slot area on the corresponding dividing plate.
Figure 10 is the perspective view of the holding device of another embodiment of the present invention.
Figure 11 is the rearview of the another kind of embodiment of holding device shown in Figure 10.
Figure 12 is the exploded view of the another kind of embodiment of heat exchanger shown in Figure 10.
Figure 13 is the rearview of exploded view of the heat exchanger of another embodiment of the invention shown in Figure 10.
Figure 14 is the perspective view of the another kind of embodiment of heat exchanger.
Figure 15 is the cutaway view of the holding device of heat exchanger shown in Figure 14.
The specific embodiment
Among Fig. 1, what Reference numeral 1 was represented is holding device of the present invention or tube sheet.Described holding device has both sides of the edge 3a and 3b, and it is used to connect other devices, as lid.For this reason, described edge has the part 4a and the 4b of inclination, is used for engaging with lid.
The thickness d of tube sheet between 0.2mm-3mm, preferably at 0.5mm between the 2.0mm; More preferably at 0.5mm between the 1.0mm.A plurality of openings 6 are arranged on the tube sheet, and described opening has the shape of " elongation shape ", is positioned at jointly on the principal plane H.
By the described production method of being made up of clicking technique and the combination of tearing technology of the present invention, 8 subregions at the periphery of opening 6 of edge or flange produce, and do not have flange 8 in other subregion 7.
Among Fig. 1 by being principal plane H shown in two dotted lines, each independently opening 6 be positioned on the described principal plane, more precisely, be that the periphery of opening 6 flangeless subregions 7 has constituted principal plane.And from Fig. 1, can see that dividing plate 21 substantially perpendicular to principal plane H, will illustrate further below.
Conversion between the flange 8 and flangeless regional 7 is to finish in the mode of step.This conversion can be continuous, or is differentiable on mathematical meaning.Flange 8 itself also can have rounded shape.
As shown in the figure, flange 8 has constant height h here, but this height can change in different zones.The height of edge or flange 8 also can change along with different opening 6.
In the stub area 9 of opening 6, also have a slit 11, this slit is the result that incision process produces.Described slit 11 can be an outline of straight line as shown in the figure, and slit 11 also can have curved edge.
In this embodiment, the plane H at opening 6 places is with respect to tube sheet basal plane B horizontal-shift.Tube sheet basal plane B is meant from wherein extending the plane of lateral edges 3a and 3b.Has an inclined-plane 12 from tube sheet basal plane B to opening 6.It would, of course, also be possible to principal plane H and tube sheet basal plane B are overlapping geometrically substantially, and be same, can imagine that principal plane H also can be positioned under the tube sheet basal plane B.At this moment opening 5 will arrive the distance of end segments greater than the tube sheet basal plane B of holding device 1 to the distance of the end segments of (figure does not show) DC tube.
Shown in the Reference numeral 21 is a dividing plate, its with each independently opening 6 be separated into left field and right side area.More precisely, whole holding device 1 is separated into left field and right side area.
Separation described here can be symmetrical substantially, and it also can be asymmetric separating in other embodiments.
Dividing plate 21 is squeezed in the step of alternately arranging 22, and more definite is that it is parallel to the plane of dividing plate 21 substantially in the middle of the end face 22a and 22b of step 22.Contiguous step 22 also has end face 24a and 24b, and it perpendicular to the plane of dividing plate 21, also has inclined-plane 25a and 25b substantially, and then relative tilt is in the plane of dividing plate 21.
In this embodiment, dividing plate squeezes in the middle of the 6 narrow zone 6a of each flange hole.In addition, dividing plate also has the slit (not shown) at least in the zone corresponding to opening 6, admits the bottom of DC tube (not shown equally).
Because the 6a zone in flange hole 6 does not have edge or flange, the slit on the dividing plate 21 can mate with DC tube forr a short time or more accurate, can cause the enhancing of the sealing of each junction between DC tube and the dividing plate at last.
Because the effect of dividing plate, the matrix of holding device 1 and lid or heat exchanger are separated left side subregion and right partition.Preferably, described separation further is extended to the DC tube (not shown) that is inserted into holding device.
The difficult point of relevant this product is the production or the configuration of the transitional region of two kinds of moulding process of opening or flange hole.Described transitional region can not have any big welding slit through behind the connection procedure, and that is to say can not influence follow-up welding procedure after DC tube is inserted into opening, and will prevent to assemble the generation of finishing the back leakage.
For this purpose, the instrument that matches is used for forming method separately, that is to say, but not proprietary, the stamping knife that for example matches and the mould of blurting out are used for clicking technique and tear technology especially.
Here preferred instrument should be chosen and form a coincidence zone between the zone that can make two kinds of different process application, that is to say in transitional region, adopts the material that is fit to two kinds of technologies or two kinds of tool processes.
By selecting the instrument of appropriate size, at first carry out clicking technique, then tear technology, in this case, the die-cut mistake of opening the zone, should satisfy when tearing technology, can not be subjected to any influence that may cause the external force of die-cut material deformation.
Fig. 2 has shown an embodiment of seeing from above according to the holding device of heat exchanger of the present invention.Holding device 1 have by flange 8 around flange hole 6.Flange 8 is connected on the pedestal 13 of holding device 1 by inclined-plane 12.As shown in the figure, in the cross-section of the substantial middle in the flange hole 6 that is used to admit corresponding flat tube (not shown), be the tube sheet section 14 that has the step 22 that is arranged relative to each other, step 22 is used to admit dividing plate 21.The outer end of each flange in described flange hole 6 has a slit 11.Make by foregoing tearing with the method for clicking technique combination in the flange hole 6 that has flange 8 and slit 11.
Fig. 3 has shown and has seen the holding device 1 shown in Fig. 2, just rearview from below.Part beyond the flange hole 6 and the tube sheet section 14 that has a step 22 are the narrow middle section 6a in flange hole 6.
Fig. 4 and Fig. 5 are the more views corresponding to Fig. 2 and Fig. 3, further describe Fig. 2 and Fig. 3.
Shown in Figure 6 is the heat exchanger that has holding device shown in Figure 2 according to of the present invention.The flat tube or the DC tube 15 that have fluid chamber 16,17 and the narrow zone 18 that is used for separate gas stream chamber 16,17 pass in the described holding device 1 of flange hole 6 insertions that has central narrow zone 6a.The dividing plate 21 that has slit 23 inserts tube sheet section 14, and this dividing plate is used for fluid partitioning is become two zones.Its median septum 21 is supported by step 22.Slit 23 on the dividing plate 21 is used to admit the central narrow zone 18 of flat tube 15.
Shown in Figure 7 is by heat exchanger as shown in Figure 6.Comprise holding device 1 and a plurality of flat tube and dividing plate that has been inserted in holding device.
Shown in Figure 8 is as shown in Figure 2 holding device 1 cutaway view, dividing plate 21 inserts holding devices 1, and the slit 23 of dividing plate 21 is run through in this figure middle section along flange hole 6.
Fig. 9 is the profile of another cross section of shown in Figure 2 holding device 1, is positioned at the part that dividing plate 21 does not have slit 23 in this mode middle section, also not along flange hole 6, so can see the matrix 13 of holding device 1 among this figure.
Figure 10 has shown the another kind of embodiment of the holding device 1 that has flange hole 6, and the periphery in described flange hole has flange 8, and flange 8 is positioned on the inclined-plane 12, realizes the matrix 13 of holding device 1 and being connected of flange 8 by inclined-plane 12.Be similar to holding device shown in Figure 2, tube sheet section 14 is substantially perpendicular to flange hole 6, and the step 22 with symmetric arrangement, and tube sheet section 14 is used for the supporting clapboard (not shown).Different with embodiment shown in Figure 2 is, holding device comprises that is also admitted a section 30, perpendicular to tube sheet section 14, admit section 30 to have spigot surface 31a, 31b, 31c, and 31d, above-mentioned spigot surface is used for that dividing plate is parallel to flange hole 6 and is inserted into holding device 1 perpendicular to the principal plane of holding device 1.When same being inserted into of the dividing plate of another piece corresponding configuration is used for the tube sheet section 14 of supporting clapboard, then fluid will be separated into four parts.In addition, two holding devices of dividing plate, the definite tube sheet section 14 and admit the layout of section 30 of saying so, also provide dividing plate to be parallel to or perpendicular to flange hole 6 arrange may.
Figure 11 has shown the rearview of holding device 1 as shown in figure 10.From rearview as can be seen, particularly the infall 32 of tube sheet section 14 and admittance section 30 is cross.
Figure 12 is the exploded view of heat exchanger embodiment of the present invention, and this heat exchanger comprises holding device 1 as shown in figure 10, second partition 33 and a plurality of flat tube 15.When having only second partition 33 to be employed, second partition 33 makes fluid partitioning become two zones along the flange hole direction of elongation.When corresponding " first " dividing plate 21 (not shown)s are also inserted tube sheet section 14, fluid will be divided into four parts.
Figure 13 is the rearview of exploded view of the embodiment of heat exchanger shown in Figure 12, and this heat exchanger has holding device shown in Figure 10 1, second partition 33 and a plurality of flat tube 15.Can see among Figure 13 that cross part 32 roughly is positioned at the central authorities of holding device, also can be inserted in the holding device 1 perpendicular to the direction in flange hole 6 so that dividing plate both can be parallel to the flange hole.
Figure 14 has second partition 33, the assembly state diagram of the heat exchanger of holding device 1 and a plurality of flat tube 15.
At last, Figure 15 has shown the profile that has the holding device of second partition 33 on the tube sheet section 14 shown in Figure 10, so the narrow zone 6a in the flange hole on the matrix 13 can be in sight.
Claims (13)
1. the holding device of a heat exchanger DC tube, described holding device has a plurality of openings that are used to support DC tube, and opening is positioned on the predetermined principal plane of holding device substantially and predetermined periphery is arranged, it is characterized in that, at least in the subregion, opening has the flange that protrudes in principal plane, and the small part neighboring area that arrives protrudes in principal plane hardly; Described opening has the middle section that width reduces.
2. holding device according to claim 1 is characterized in that described flange protrudes in principal plane generally along the direction of DC tube end face.
3. holding device according to claim 1 and 2 is characterized in that described flange vertically protrudes in principal plane substantially.
4. holding device according to claim 1 and 2 is characterized in that described flange protrudes in principal plane 0.3mm substantially between the 3.0mm.
5. holding device according to claim 1 and 2 is characterized in that described flange protrudes in principal plane 0.5mm substantially between the 2.0mm.
6. holding device according to claim 1 and 2 is characterized in that described flange protrudes in principal plane 0.5mm substantially between the 1.0mm.
7. holding device according to claim 1 and 2 is characterized in that described opening has the shape of elongation.
8. holding device according to claim 1 and 2 is characterized in that, the bottom zone of described opening does not protrude in principal plane substantially.
9. holding device according to claim 1 and 2 is characterized in that, the not outstanding substantially principal plane of the middle section of described opening.
10. holding device according to claim 1 and 2 is characterized in that, described principal plane is parallel with respect to the tube sheet basal plane of holding device.
11. holding device according to claim 1 and 2 is characterized in that, described principal plane more approaches the bottom of DC tube with respect to the tube sheet basal plane of holding device.
12. a heat exchanger device, described heat exchanger have a plurality of DC tubes that are used to transmit heat, it is characterized in that, the described holding device of aforementioned each claim is positioned at least one end of DC tube.
13. heat exchanger according to claim 12 is characterized in that, the described holding device of aforementioned each claim is positioned at two ends of DC tube.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004058574 | 2004-12-03 | ||
| DE102004058574.1 | 2004-12-03 | ||
| DE102005018187.2 | 2005-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101111326A CN101111326A (en) | 2008-01-23 |
| CN100542707C true CN100542707C (en) | 2009-09-23 |
Family
ID=39043006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800476515A Expired - Fee Related CN100542707C (en) | 2004-12-03 | 2005-12-05 | The manufacture method of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100542707C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633694B (en) * | 2015-02-03 | 2017-06-06 | 上海齐耀热能工程有限公司 | The plate air preheater of full enamel passage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB169855A (en) * | 1920-07-19 | 1921-10-13 | Henry Garner | Improvements in radiators for motor vehicles and the like |
| US4150556A (en) * | 1978-02-27 | 1979-04-24 | Mccord Corporation | Radiator tank headsheet and method |
-
2005
- 2005-12-05 CN CNB2005800476515A patent/CN100542707C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB169855A (en) * | 1920-07-19 | 1921-10-13 | Henry Garner | Improvements in radiators for motor vehicles and the like |
| US4150556A (en) * | 1978-02-27 | 1979-04-24 | Mccord Corporation | Radiator tank headsheet and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101111326A (en) | 2008-01-23 |
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