CN1162109A - Heat exchanger and mfg. method thereof - Google Patents
Heat exchanger and mfg. method thereof Download PDFInfo
- Publication number
- CN1162109A CN1162109A CN 96106857 CN96106857A CN1162109A CN 1162109 A CN1162109 A CN 1162109A CN 96106857 CN96106857 CN 96106857 CN 96106857 A CN96106857 A CN 96106857A CN 1162109 A CN1162109 A CN 1162109A
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- China
- Prior art keywords
- fluid hose
- case
- tank wall
- fluid
- flange
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Abstract
A heat exchanger includes a tank having a pipe insertion hole disposed in a tank wall and a fluid pipe connected to the tank wall for introducing a fluid into the tank or discharging the fluid from the tank. The tank wall has a burr formed around the pipe insertion hole extending toward an interior of the tank. The fluid pipe has a flange formed on its periphery by bending the fluid pipe onto itself. An end portion of the fluid pipe is inserted into the pipe insertion hole so that the flange contacts an outer surface of the tank wall, and the inserted end portion is expanded and caulked together with the burr. A brazing material may be fixed between the flange and the tank wall during brazing even during vibration. The length of the pipe inserted into the tank may be minimized. The contact area between the fluid pipe and the tank is thereby enlarged
Description
The present invention relates to heat exchanger and manufacture method thereof, more particularly relate to the case of heat exchanger and improved syndeton and the method for attachment between the fluid hose.
A case is arranged and be connected in for example fluid inlet tubes on the case or the habitual heat exchanger of the fluid hose of fluid outlet pipe in, the welding between case and the fluid hose is following to be carried out.For example, Fig. 9 illustrates a heat exchanger tank 104, and case 104 has a pipe patchhole 102 on the tank wall 103 that is arranged in case 104.Burr 101 can form to increase the surface area that contacts of case 104 and fluid hose 105 around pipe patchhole 102, promptly increase the bonding area between case 104 and the fluid hose 105.An end of fluid hose 105 can be inserted in the pipe patchhole 102, makes the top 110 of fluid hose 105 arrange to such an extent that surpass the top 111 of burr 101.The fluid hose 105 that inserts can be fixed on the case 104 provisionally by spot welding 106.Annular solder 107 can place and contact with the outer surface 108 of tank wall 103 around the circumference of fluid hose 105.Then, assembly can be heated in stove, fluid hose 105 is welded on the case 104.
In such connection and Welding Structure, when assembly heated in stove, if any vibration takes place, annular solder 107 may be removed from the outer surface of tank wall 103.If this removing taken place, may keep the amount of solder of the fusion that contacts with fluid hose 105 with burr 101 abundant inadequately, can not between fluid hose 105 and case 104, form good welding and connection status.
In addition, the length of inside that fluid hose 105 inserts casees 104 is often longer, so this part can disturb fluid to flow in the case 104, causes flowing into sizable pressure loss of the fluid of case 104.
In addition, contact area, promptly the bonding area between case 104 and the fluid hose 105 is less, and therefore, the bonding strength between fluid hose 105 and the case 104 may be not enough.
Therefore, the purpose of this invention is to provide a kind of heat exchanger that a kind of syndeton is arranged between case and fluid hose, it can prevent annular solder in stove between the period of heating, even, when vibration took place for case and fluid hose assembly, undesirable removing taken place.
Another object of the present invention provides a kind of method of making such heat exchanger.
Another object of the present invention be make fluid hose insert case inside length the shortest, the pressure loss minimum in the case whereby.
Another object of the present invention is the contact area that increases between case and the fluid hose, increases whereby by welding resulting bonding strength therebetween.
These and other objects can be realized by the heat exchanger that has a kind of syndeton between case and fluid hose of the present invention.Heat exchanger of the present invention comprises: a case, this case comprise a tank wall, and this tank wall has the pipe patchhole that is arranged on this tank wall, and fluid hose can be connected in and be used on this tank wall fluid is introduced this case or fluid is discharged this case.Tank wall can have the inside of stretching to this case to center on the burr that this pipe patchhole forms; Fluid hose for example can have by making the crooked flange that is formed on its circumference of fluid hose itself, and this pipe patchhole is inserted in an end of this fluid hose, makes this flange contact with the outer surface of this tank wall.The insertion end of this fluid hose is expanded outwardly and is riveted together with these burr.
A kind of method of making heat exchanger of the present invention comprises the following steps:
Pipe patchhole on the tank wall that is arranged in this case forms the burr that stretch to this case inside;
By for example fluid hose bending itself being formed flange on the circumference of this fluid hose;
This pipe patchhole is inserted in an end of this fluid hose, make this flange contact with the outer surface of this tank wall.With
Be riveted together with the insertion end expansion of this fluid hose and with these burr.
In the method for this heat exchanger and this heat exchanger constructed in accordance, because flange is formed on the circumference of fluid hose, so can before fluid hose is inserted into the pipe patchhole, annular solder be placed on the circumference of fluid hose, make annular solder contact with flange.Whereby, when the end of fluid hose was inserted into the pipe patchhole and flange is contacted with the outer surface of tank wall, annular solder can be fixed between flange and the tank wall firmly.In addition, because heating and the welding in stove in described assembly of fluid hose and case, so the position of annular solder in heating process, even always can remain on the desirable position when assembly take place to vibrate.As a result, the scolder of the fusion of q.s can be conducted to the connecting portion between fluid hose and the tank wall, guarantees to obtain good welded condition whereby.
In addition because the insertion end of fluid hose expanded and is riveted together with burr, so fluid hose insert case inside length can be the shortest.Therefore inserting the comparison of the pressure loss in the case that the part in the case causes and habitual structure by fluid hose can be minimum.
In addition, because contacting with the outer surface of tank wall with the insertion end of fluid hose, flange contacts, so the contact area between fluid hose and the case can increase with burr on being formed on tank wall.Therefore bonding strength and weld strength betwixt also can increase.
In addition, because the insertion end and the burr of fluid hose are riveted together, make the insertion end of fluid hose extend through burr and be riveted together, so fluid hose can be fixed on the case firmly with it.In addition, relative with the insertion end of a fluid hose end (fluid intake or fluid discharge outlet) can accurately be located before riveted joint.Therefore before welding, need not temporary fixed between fluid hose and case, and in welding process, also be unwanted such as utilizing the sort of fixing of fixed mount.Therefore, manufacture process can be simplified, and manufacturing cost can reduce.
Other purpose of the present invention, feature and advantage can be from obtaining to understand with reference to the detailed description of suitable accompanying drawing to preferred embodiment of the present invention.
Introduce several preferable example embodiment of the present invention referring now to suitable accompanying drawing.Yet these embodiment only are exemplary illustration, be not be used for limiting of the present invention.
Fig. 1 is the perspective view of the heat exchanger of one embodiment of the present of invention;
Fig. 2 is the decomposition diagram of heat exchanger shown in Figure 1;
Fig. 3 is the local amplification front elevation of heat exchanger shown in Figure 1;
Fig. 4 is the fluid hose of heat exchanger shown in Figure 1 and the amplification vertical cross-sectional of the coupling part between the tank wall;
Fig. 5 is the amplification vertical cross-sectional of the fluid hose of heat exchanger shown in Figure 1 and the coupling part between the tank wall and illustrates according to another one embodiment of the present invention and pound tight method together with the end expansion of fluid hose and with the burr of tank wall;
Fig. 6 is the fluid hose of heat exchanger shown in Figure 1 before the welding and the amplification vertical cross-sectional of the coupling part between the tank wall;
Fig. 7 is the vertical cross-sectional of the part of the fluid hose of heat exchanger of another one embodiment of the present invention and the coupling part between the tank wall;
Fig. 8 is the vertical cross-sectional of the part of the fluid hose of heat exchanger of another one embodiment of the present invention and the coupling part between the tank wall;
Fig. 9 is the vertical cross-sectional of the part of the fluid hose of habitual heat exchanger and the coupling part between the tank wall.
Consult Fig. 1 and 2, wherein show according to heat exchanger 1 provided by the invention.Heat exchanger 1 comprises a pair of case 2 and 3.Each case 2 and 3 can constitute a bucket 2c or 3c with seat part 2b or 3b by case spare 2a or 3a.Inlet tube 4 and outlet 5 can be set as fluid hose so that with fluid (for example cold-producing medium) difference leading-in box 2 with from case 2 discharges.Inlet tube 4 and outlet 5 can be welded on the case 2.A plurality of flat heat-transfer pipes 6 (for example, refrigerant pipe) can fill with fluid be interconnected between case 2 and 3.Any one surface that corrugated plate 7 can be arranged in each heat-transfer pipe 6 go up or two surfaces on.Side part 8 and 9 is located on the upper surface of uppermost corrugated plate 7a respectively and on the lower surface of nethermost corrugated plate 7b.Each case 2 and 3 can be closed by lid 10 and 11 respectively at two longitudinal ends.The inside of case 2 can be divided into two part 12a and 12b by the dividing plate 13 that is arranged in the case 2.
Case spare 2a has the tank wall that forms pipe patchhole 14 and 15 on it.Shown in Fig. 4-6, the burr 17 that stretch to case 2 inside can form around pipe patchhole 14.Flange 4b can be formed on the circumference of fluid hose 4 at the end 4c near fluid hose 4.Flange 4b can be by forming fluid hose 4 bending on itself, so a flange forms part just along axially outwards highlighting.Also can adopt other to form the method for flange 4b.The end 4c of fluid hose 4 can insert the inside of managing patchhole 14 and stretching to case 2.
Before the end of fluid hose 4 4c is inserted into pipe patchhole 14, earlier annular solder 18 is placed on fluid hose 4 end 4c around, make annular solder 18 contact with flange 4b.The internal diameter of annular solder 18 can be less than the external diameter of flange 4b.In this embodiment, annular solder 18 can have trapezoidal cross-section.In the case, the end 4c of fluid hose 4 can insert pipe patchhole 14 and contact until the outer surface that makes flange 4b with tank wall 16, as shown in Figure 5.The insertion end 4c of fluid hose 4 extends through the top 30 of burr 17.Case spare 2a (tank wall 16), fluid hose 4 and annular solder 18 assemblies can be supported by undercarriage 19 from downside.Drift 20 can be pressed on the insertion end 4c of fluid hose 4 from upside.Drift 20 can have the annular of the curved recessed portion of forming to pound limit part 20a.The end 4c of fluid hose 4 can be riveted together by the downforce and the burr 17 of drift 20.When drift 20 was pressed on the end 4c of fluid hose 4 and the burr 17 downwards, end 4c and burr 17 expansions were outwardly open and be riveted on the surface of tank wall 16.End 4c is stamped to such an extent that make its upper surface pound limit part 20a bending along drift 20.In other words, the be stamped surface that faces case 2 inside of end 4c forms curved surface to case 2 internal protrusion.Because the case spare 2a of case 2 and seat part 2b are independent structures, so can carry out such punching press and riveted joint in manufacture process.
By above-mentioned punching press, as shown in Figure 6, fluid hose 4 is fixed on the tank wall 16 and by the burr 17 that are stamped by the end 4c that is stamped and is fixed on the flange 4b.The tapering part 25 of annular solder 18 also can be set in addition.Tapering part 25 trapezoid cross section can be arranged and can be fixed on tank wall 16 and flange 4b between.After riveted joint, assembly is placed in the stove, heat within it and weld.During heating annular solder 18 is melted, and the scolder 18 of fusion is conducted to the contact portion of fluid hose 4 and tank wall 16 so that welding.State after the welding is shown among Fig. 4.
In this embodiment, because annular solder 18 is fixed between flange 4b and the tank wall 16 before welding firmly, so when assembly is heated and weld, in stove between the period of heating, when even vibration takes place, the annular solder 18 that is fixed can not removed from desirable position yet, so the fusion welding of q.s always is conducted to the coupling part between fluid hose 4 and tank wall 16, thereby can obtain good welded condition betwixt.It is hereby ensured the strong connection between fluid hose 4 and tank wall 16.
In addition, because the insertion end 4c of fluid hose 4 expands outwardly and is riveted together with burr 17, so the end 4c of fluid hose 4 can be minimum towards the insertion length of case 2 internal direction.Therefore by insert any pressure loss in the case 2 that the end causes and habitual structure relatively with minimum.
In addition, the end 4c that the flange 4b of fluid hose 4 contacts with the outer surface of tank wall 16 and the quilt of fluid hose 4 is riveted contacts with the surface of the burr that are stamped 17 on being formed on tank wall, therefore fluid hose 4 contacts with tank wall 16 on enough broad contact area, has further increased the bonding strength between fluid hose 4 and the tank wall 16 whereby
In addition, the end 4c and the burr 17 of fluid hose 4 are riveted together, and make the surface that is stamped form the curved surface to the internal protrusion of case 2.Therefore, the loss of case 2 pressure inside relatively is minimum with the curved surface of for example spill.
In addition, the end 4c of fluid hose 4 can insert the feasible top 30 that extends through burr 17 in the pipe connecting hole 14.In addition, the end 4c and the burr 17 of insertion are riveted together, and therefore, fluid hose 4 can extremely be securely fixed on the tank wall 16.As a result, when heating and welding, fluid hose 4, particularly fluid intake 4a can be placed and remain on the position of hope with respect to case spare 2a, and need not to adopt particular stent that fluid hose 4 is fixed on the case spare 2a.As a result, manufacturing process can be simplified, and the cost of making heat exchanger 1 can reduce.
Though annular solder can have the trapezoid cross section of the foregoing description, the shape of cross section is not subject to this especially.For example, according to the additional embodiments that is shown in Fig. 7, also can before punching press, adopt the annular solder 21 of triangular cross section.In addition, as the structure before the punching press, also can adopt the annular solder that rectangular cross section is arranged 22 of another one embodiment as shown in Figure 8.
Though described several embodiments of the present invention here in detail, the present invention is not limited to them.The one of ordinary skilled in the art knows, can also make various changes and not can with novelty of the present invention, the tangible disengaging of superior technology.Therefore, embodiment as described herein is only for giving an example.Be appreciated that scope of the present invention is not subjected to their restriction, but determined by accompanying Claim.
Claims (16)
1. heat exchanger, it comprises:
A case, this case comprise a tank wall, and this tank wall has the pipe patchhole that is arranged on this tank wall, and this tank wall has the inside of stretching to this case to center on the burr that this pipe patchhole forms;
Be connected in the fluid hose that is used on this tank wall that fluid introduced this case or fluid is discharged this case, this fluid hose has the flange that is formed on this fluid hose circumference, this pipe patchhole is inserted in an end of this fluid hose, make this flange contact with the outer surface of this tank wall, this insertion end and this burr are riveted together.
2 heat exchangers as claimed in claim 1 is characterized in that, this flange is formed by crooked this fluid hose itself.
3. heat exchanger as claimed in claim 1 is characterized in that this flange forms near the top of this fluid hose.
4. heat exchanger as claimed in claim 1 is characterized in that, this end of this fluid hose extends through this burr.
5. heat exchanger as claimed in claim 1 is characterized in that, this end of this fluid hose is stamped, and makes this end face form the curved surface to this case internal protrusion towards the surface of this case inside.
6. heat exchanger as claimed in claim 1 is characterized in that this fluid hose is welded on this tank wall.
7. heat exchanger as claimed in claim 1 is characterized in that, this case includes one first of this tank wall and be connected this first and go up so that form second an of bucket of this case.
8. a manufacturing has at least one case and is connected the method for the heat exchanger of the fluid hose that is used on this case that fluid introduced this case and this fluid is discharged from this case, and this method comprises the following steps:
Pipe patchhole on the tank wall that is arranged in this case forms the burr that stretch to this case inside;
On the circumference of this fluid hose, form flange;
This pipe patchhole is inserted in an end of this fluid hose, make this flange contact with the outer surface of this tank wall.With
Insertion end and this burr of this fluid hose are riveted together.
9. method as claimed in claim 8 is characterized in that, it also be included in after the step of this riveted joint fluid hose is welded on the tank wall step.
10. method as claimed in claim 8 is characterized in that, it also is included in the step on the circumference that annular solder is placed on before the step that this fluid hose inserts fluid hose in the position between flange and the tank wall.
11. method as claimed in claim 10 is characterized in that annular solder has trapezoidal cross-section.
12. method as claimed in claim 10 is characterized in that, annular solder has leg-of-mutton cross section.
13. method as claimed in claim 10 is characterized in that annular solder has rectangular cross section.
14. method as claimed in claim 8 is characterized in that, this inserting step comprises that pipe is inserted in the end of fluid hose to insert in the hole and extend through burr.
15. method as claimed in claim 8 is characterized in that, the step of this riveted joint comprises the insertion end punching press with fluid hose, and the surface of the inside that faces case of the feasible end that is stamped forms the curved surface to the internal protrusion of this case.
16. method as claimed in claim 8 is characterized in that, the formation step of this flange comprises the step that fluid hose itself is crooked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96106857 CN1162109A (en) | 1995-05-30 | 1996-05-30 | Heat exchanger and mfg. method thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP154041/95 | 1995-05-30 | ||
| CN 96106857 CN1162109A (en) | 1995-05-30 | 1996-05-30 | Heat exchanger and mfg. method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1162109A true CN1162109A (en) | 1997-10-15 |
Family
ID=5119407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96106857 Pending CN1162109A (en) | 1995-05-30 | 1996-05-30 | Heat exchanger and mfg. method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162109A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360866C (en) * | 2001-09-27 | 2008-01-09 | 林内株式会社 | Tank for heat exchanger and tis producing method |
| CN102679586A (en) * | 2011-03-10 | 2012-09-19 | 王蕾 | Heat collector plate core with high pressure bearing capacity and multi-material lamination manufacturing process |
| CN102706014A (en) * | 2012-05-02 | 2012-10-03 | 昆明霍尔金科技有限公司 | Solderless multi-material composite solar thermal collector board core of thin wall/thick wall diversion pipe |
| CN103769468A (en) * | 2012-10-19 | 2014-05-07 | 张荣伟 | Production method of cooling patch plug and product thereof |
| CN104769382A (en) * | 2012-10-30 | 2015-07-08 | 株式会社电装 | Heat exchanger assembly |
| CN106041339A (en) * | 2015-04-03 | 2016-10-26 | 世元世龙技术株式会社 | Shell-and-tube welding method |
| CN110976690A (en) * | 2019-11-15 | 2020-04-10 | 苏州铭峰精密机械有限公司 | U-shaped piece cross beam riveting process |
| CN113167553A (en) * | 2018-11-20 | 2021-07-23 | 株式会社电装 | Heat exchanger |
-
1996
- 1996-05-30 CN CN 96106857 patent/CN1162109A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360866C (en) * | 2001-09-27 | 2008-01-09 | 林内株式会社 | Tank for heat exchanger and tis producing method |
| CN102679586A (en) * | 2011-03-10 | 2012-09-19 | 王蕾 | Heat collector plate core with high pressure bearing capacity and multi-material lamination manufacturing process |
| CN102706014A (en) * | 2012-05-02 | 2012-10-03 | 昆明霍尔金科技有限公司 | Solderless multi-material composite solar thermal collector board core of thin wall/thick wall diversion pipe |
| CN102706014B (en) * | 2012-05-02 | 2014-12-03 | 昆明霍尔金科技有限公司 | Solderless multi-material composite solar thermal collector board core of thin wall/thick wall diversion pipe |
| CN103769468A (en) * | 2012-10-19 | 2014-05-07 | 张荣伟 | Production method of cooling patch plug and product thereof |
| CN103769468B (en) * | 2012-10-19 | 2016-12-21 | 张荣伟 | A kind of method making heat radiation patch plug and goods thereof |
| CN104769382A (en) * | 2012-10-30 | 2015-07-08 | 株式会社电装 | Heat exchanger assembly |
| CN104769382B (en) * | 2012-10-30 | 2017-11-17 | 株式会社电装 | Heat exchanger assemblies |
| CN106041339A (en) * | 2015-04-03 | 2016-10-26 | 世元世龙技术株式会社 | Shell-and-tube welding method |
| CN113167553A (en) * | 2018-11-20 | 2021-07-23 | 株式会社电装 | Heat exchanger |
| CN110976690A (en) * | 2019-11-15 | 2020-04-10 | 苏州铭峰精密机械有限公司 | U-shaped piece cross beam riveting process |
| CN110976690B (en) * | 2019-11-15 | 2021-12-07 | 苏州铭峰精密机械有限公司 | U-shaped piece cross beam riveting process |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |