CN103273295A - Heat exchanger and heat exchanger manufacturing method - Google Patents
Heat exchanger and heat exchanger manufacturing method Download PDFInfo
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- CN103273295A CN103273295A CN2013101742714A CN201310174271A CN103273295A CN 103273295 A CN103273295 A CN 103273295A CN 2013101742714 A CN2013101742714 A CN 2013101742714A CN 201310174271 A CN201310174271 A CN 201310174271A CN 103273295 A CN103273295 A CN 103273295A
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- fin
- peristome
- heat exchange
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Abstract
The invention discloses a heat exchanger manufacturing method. The heat exchanger manufacturing method comprises the following steps that at least one heat exchange straight pipe is provided, wherein the heat exchange straight pipe comprises a body section and a transitional section, and the body section and the transitional section are mutually connected; a plurality of fins are layered, and at least one fin opening part is arranged on each fin, wherein the shape of the cross section of each fin opening part is identical to the shape of the cross section of the body section of the heat exchange straight pipe, the area of the cross section of each fin opening part is slightly smaller than or equal to the area of the cross section of the body section; at least one connecting member penetrates through the fin opening parts of the fins and is fixedly connected with the transitional section of the corresponding heat exchange straight pipe; the connecting piece is pulled through external force to enable the body section of the heat exchange straight pipe to penetrate through the fin opening parts, and therefore the body section is closely contacted with the fin opening parts. In addition, the invention further discloses a heat exchanger manufactured by the method.
Description
Technical field
The present invention relates to heat exchanger, relate in particular to the heat exchanger that is used in HVAC, automobile, refrigeration and the transport field and the manufacture method of heat exchanger.
Background technology
Traditional heat exchanger comprises fin and the heat exchanger tube that is fixed together.For fin is fixed on the heat exchanger tube, generally adopt mechanical expanding technology and soldering processes.For identical heat exchanger size, the hydraulic diameter of heat exchanger tube is more little, and heat exchange property can be more high, and material cost is more low.But the mechanical expanding technology is subjected to the influence of heat exchanger tube diameter bigger, can only be applied to diameter at present greater than the copper pipe of 5mm, and inapplicable this technology of aluminum pipe.Unlimited pursuit for present air conditioner industry cost performance is a great limitation.Soldering tech can be used for small hydro diameter heat exchanger tube heat exchanger, but all parts of heat exchanger are aluminium, the soldering processes complexity, and the equipment investment height, problems such as unstable product quality have limited the market competitiveness of micro-channel heat exchanger greatly.
Summary of the invention
The method that the purpose of this invention is to provide a kind of heat exchanger and manufacturing heat exchanger, thus for example, when guaranteeing heat exchange property, both can be used for fin-tube type heat exchanger, particularly can be used for having diameter less than the fin-tube type heat exchanger of the heat exchanger tube of 5mm, can be used for micro-channel heat exchanger too, this technology can replace soldering and mechanical expanding technology.
According to an aspect of the present invention, provide a kind of manufacture method of heat exchanger, may further comprise the steps:
At least one heat exchange straight tube is provided, and each heat exchange straight tube comprises main paragraph connected to one another and changeover portion;
Stacked a plurality of fin, described each fin has at least one fin peristome, the cross section of wherein said fin peristome is corresponding with the shape of cross section of the main paragraph of described heat exchange straight tube, and the cross-sectional area of described fin peristome is slightly less than or equals the cross-sectional area of described main paragraph;
The fin peristome that at least one connector is passed described fin is fixedlyed connected with the changeover portion of corresponding heat exchange straight tube;
Spur described connector by external force, make the main paragraph of described heat exchange straight tube pass described fin peristome, thereby described main paragraph closely contacts with described fin peristome.
Preferably, the area of all cross sections of described main paragraph equates, the area of all cross sections of described fin peristome equates, the area of described changeover portion cross section reduces gradually from link to another link with described connector with described main paragraph, thereby described changeover portion connects described main paragraph and described connector smoothly.
Preferably, the cross section of described fin peristome, described main paragraph, described changeover portion all is circular, and the profile of described changeover portion is the cardinal principle frustoconical.
Preferably, the overall diameter of described main paragraph equals or is slightly larger than the interior diameter of described fin peristome.
Preferably, the pass of the interior diameter d of the overall diameter D of described heat exchange straight tube and fin peristome is: 0≤D-d≤0.3mm.
Preferably, the cross section of described fin peristome, described main paragraph, described changeover portion all is any in square, rectangle, ellipse, rule or the irregular polygon.
Preferably, described fin is provided with flange, and described flange is provided with grooving.
Preferably, the pass of the height h of the height H of described flange and grooving is: h 〉=0.75H.
According to a further aspect in the invention, provide a kind of heat exchanger of making according to said method, having comprised:
A plurality of heat exchange straight tubes, each heat exchange straight tube comprises main paragraph and the changeover portion of mutual smooth connection;
A plurality of fins stacked together, described each fin has at least one fin peristome, the main paragraph of described heat exchange straight tube pass described fin peristome and with its tight contact.
Preferably, described heat exchange straight tube is that circular cross section, diameter are less than the copper pipe of 5mm.
The method of heat exchanger of the present invention and manufacturing heat exchanger both can be used for fin-tube type heat exchanger when guaranteeing heat exchange property, particularly can be used for having diameter less than the fin-tube type heat exchanger of the heat exchanger tube of 5mm, can be used for micro-channel heat exchanger too, this technology can replace soldering and mechanical expanding technology.
The heat exchanger tube diameter is more little, and heat exchange is more good, and material cost is more low.When the heat exchanger tube diameter hour, heat exchanger tube can't use tube expansion technique with being connected of fin, the method and the corresponding heat exchanger that adopt the present invention to make heat exchanger can be avoided the soldering processes of complexity, improve the quality of products reduction cost of goods manufactured and equipment investment.
Description of drawings
Referring now to the schematic figures of enclosing, only by way of example, embodiments of the invention are described, wherein, corresponding Reference numeral is represented corresponding parts in the accompanying drawings.
Fig. 1 is the schematic diagram according to a kind of fin-type heat exchanger of the embodiment of the invention;
Fig. 2 is the schematic flow sheet according to the manufacture method of the heat exchanger of the embodiment of the invention, wherein shows a part that is in two heat exchange straight tubes in the connection status with pull bar;
Fig. 3 a and 3b are respectively according to the front view of the fin of the first embodiment of the present invention and left view, show the part of the fin that has two row's fin holes;
Fig. 4 a and 4b according to a second embodiment of the present invention front view and the left view of fin respectively the time shows the parts of the fin that has two row's fin holes.
The specific embodiment
Below by embodiment, and 1-4b by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In specification, same or analogous drawing reference numeral is indicated same or analogous parts.Following explanation to embodiment of the present invention is intended to present general inventive concept of the present invention is made an explanation with reference to accompanying drawing, and not should be understood to a kind of restriction of the present invention.
Fig. 1 shows the heat exchanger 100 according to the embodiment of the invention.Shown in Fig. 1-2, heat exchanger 100 comprises a plurality of heat exchange straight tubes 10 and fin 20.Heat exchange straight tube 10 can have any shape of cross section, for example circle, square, rectangle, any other regular polygon, or irregular shape such as oval, avette.Heat exchange straight tube 10 passes the fin peristome 21 on the fin 20, and a plurality of fin 20 stacked together being fixed on the heat exchange straight tube 10.
Further, described heat exchange straight tube 10 is connected to each other as required by bend pipe 60.Can also be provided with entrance 40 and outlet (not shown), it is connected with bend pipe 60 so that the fluid turnover with corresponding heat exchange straight tube 10.In addition, can also be provided with temperature sensor 50 by heat exchanger 100, with the temperature of sensing heat exchanger 100.Be appreciated that above-mentioned parts can increase or remove as required, as long as can make heat exchanger 100 normal operations.
From above-mentioned discussion as can be known, tube expansion technique of the prior art and soldering tech all have corresponding shortcoming.So the present invention has designed a kind of new solution that can abandon the two shortcoming.
Particularly, the manufacture method according to the heat exchanger 100 of the embodiment of the invention may further comprise the steps.
A plurality of heat exchange straight tubes 10 at first are provided, and described heat exchange straight tube 10 comprises main paragraph 12 connected to one another and changeover portion 14, as shown in Figure 2.Herein, for illustrated purpose, the cross section of described heat exchange straight tube 10 is circular.As mentioned above, the shape of cross section of heat exchange straight tube 10 can be selected as required, for example square or ellipse etc.
Secondly, for the ease of making, also need a plurality of fin 20 stacked together.Described fin 20 can have at least one fin peristome 21.Only show fin 20 and have two fin peristomes 21 in Fig. 2, obviously fin 20 can have more fin peristome 21.Need to prove, the shape of cross section of fin peristome 21 is configured to corresponding with the shape of cross section of the main paragraph 12 of heat exchange straight tube 10, namely for example when the main paragraph 12 of heat exchange straight tube 10 has circular cross section, fin peristome 21 also can correspondingly be arranged to have circular cross section.In addition, the cross-sectional area of described fin peristome 21 is configured to slightly less than or is substantially equal to the cross-sectional area of described main paragraph 12.
Afterwards, at least one connector (for example pull bar 30) is passed the changeover portion 14 fixedly connected or mechanical connections (for example welding or riveted joint etc.) of described fin peristome 21 and corresponding heat exchange straight tube 10.Will be appreciated that shape of cross section and the cross-sectional area of changeover portion 14 and connector 30 are not subjected to special restriction, as long as can pass the peristome 21 of fin in principle.
At last, by spur described connector 30 along the direction shown in Fig. 2, make the main paragraph 12 of described heat exchange straight tube 10 pass described fin peristome 21.
From above-mentioned description as can be known, because the cross-sectional area of fin peristome 21 is slightly less than or equals the cross-sectional area of described main paragraph 12, so when heat exchange straight tube 10 passes fin 20 via the effect of external force or pulling force, must closely contact with described fin 20 (specifically being fin peristome 21).In other words, by above-mentioned layout, realized the fixed engagement between described fin 20 and the heat exchange straight tube 10, identical with the fixed engagement of the fin of realizing by tube expansion technique or soldering tech and heat exchanger tube or be equal to mutually.
In one embodiment, the cross section of described fin peristome 21, main paragraph 10 and changeover portion 14 all is configured to circle.In other words, described main body pipe 10 has diameter D constant or constant.Described fin peristome 21 has diameter d constant or constant.At this moment, the overall diameter D of main paragraph 10 equals or is slightly larger than the interior diameter d of fin peristome 21 (in the case, may also be referred to as be the fin hole).Pass fin hole 21 and be connected described pull bar 30 and main paragraph 12 for the ease of described changeover portion 14, described changeover portion 14 is configured to the frustoconical that diminishes gradually from left side to the right side of Fig. 2, thereby described changeover portion 14 connects main paragraph 12 and pull bar 30 smoothly.That is, described changeover portion 14 in the present embodiment profile be frustoconical substantially.
Preferably, the pass of the interior diameter d in the overall diameter D of described heat exchange straight tube 10 and fin hole 21 is: 0≤D-d≤0.3mm.Usually, described changeover portion 14 is in order to connect described main paragraph 12 and connector 30, described changeover portion 14 is configured to taper as shown in Figure 2, but its shape of cross section can be arbitrary shape, for example square, rectangle, ellipse or other polygon.
In addition, need to prove, in Fig. 2, only show two heat exchange straight tubes 10, but can understand that present embodiment can also make many heat exchange straight tubes 10 be connected with many pull bars 30 simultaneously.
Shown in Fig. 3 a-4b, described fin 20 is provided with flange 22, and described flange 22 is provided with grooving 23.Described grooving 23 can compensate the difference between the diameter of the diameter in fin hole 21 and heat exchange straight tube 10, makes heat exchange straight tube 10 than the fin hole 21 that is easier to penetrate fin 20.
In order to guarantee enough to insert smoothly described fin hole 21, in the present embodiment preferably, the pass of the height h of the height H of described flange 22 and grooving 23 is: h 〉=0.75H.
Fig. 3 a-3b shows the fin 20 according to the first embodiment of the present invention.The height h of the grooving 23 of described fin 20 is set to 0.75 times of height H of flange 22.
Fig. 4 a-4b shows fin 20 according to a second embodiment of the present invention.The height h of the grooving 23 ' of described fin 20 is arranged to equal the height H of flange 22.
In the first and second above-mentioned embodiment (shown in Fig. 3 a-4b), it has only shown the fin 20 that to have 7 complete fin holes 21.Yet, to those skilled in the art, can understand that fin 20 can be configured to have many row's fins hole 21, and is not limited to illustrated such.
Certainly, said grooving 23 or 23 ' position only are the purposes in order to illustrate, and their quantity and position can arrange arbitrarily, and be not limited to illustrated like that.
As known to those skilled in the art, in the described fin 20 of first and second embodiment of the present invention, can also be as disclosed in the prior art, the main part of described fin 20 is provided with window portion (not indicating), to increase the heat exchange efficiency of fin 20.In view of the feature such as window portion is not critical aspects of the present invention, those skilled in the art can carry out apparent variation or modification as required, so be not described in detail at this.
Need to prove that for for example form of square or oval-shaped heat exchange straight tube 10, the step of described manufacturing heat exchanger 100 is identical substantially with the situation of the heat exchange straight tube of above-mentioned circular cross sectional shape, so no longer describe in detail at this.
Manufacture method of the present invention is applicable to single heat exchanger, also is applicable to many row's heat exchangers.
The heat exchanger tube diameter is more little, and heat exchange is more good, and material cost is more low.Less when the heat exchanger tube diameter, heat exchanger tube can't be used tube expansion technique with being connected of fin, adopts technical scheme of the present invention, can avoid complicated soldering processes, improves the quality of products, and reduces cost of goods manufactured and equipment investment.
It should be noted that all technical characteristic in the above embodiment of the present invention or part technical characterictic can make up in any suitable manner and form new embodiment.
Though some embodiment of this present general inventive concept are shown and explanation, those skilled in the art will appreciate that, under the situation of the principle that does not deviate from this present general inventive concept and spirit, can make a change these embodiment, scope of the present invention limits with claim and their equivalent.
Claims (9)
1. the manufacture method of a heat exchanger may further comprise the steps:
At least one heat exchange straight tube is provided, and each heat exchange straight tube comprises main paragraph connected to one another and changeover portion;
Stacked a plurality of fin, described each fin has at least one fin peristome, the cross section of wherein said fin peristome is corresponding with the shape of cross section of the main paragraph of described heat exchange straight tube, and the cross-sectional area of described fin peristome is slightly less than or equals the cross-sectional area of described main paragraph;
The fin peristome that at least one connector is passed described fin is fixedlyed connected with the changeover portion of corresponding heat exchange straight tube;
Spur described connector by external force, make the main paragraph of described heat exchange straight tube pass described fin peristome, thereby described main paragraph closely contacts with described fin peristome.
2. method according to claim 1, wherein,
The area of all cross sections of described main paragraph equates, the area of all cross sections of described fin peristome equates, the area of described changeover portion cross section reduces gradually from link to another link with described connector with described main paragraph, thereby described changeover portion connects described main paragraph and described connector smoothly.
3. method according to claim 1 and 2, wherein,
The cross section of described fin peristome, described main paragraph, described changeover portion all is circular, and the profile of described changeover portion is the cardinal principle frustoconical.
4. method according to claim 3, wherein,
The overall diameter of described main paragraph equals or is slightly larger than the interior diameter of described fin peristome.
5. method according to claim 4, wherein,
The pass of the overall diameter D of described heat exchange straight tube and the interior diameter d of fin peristome is: 0≤D-d≤0.3mm.
6. according to each described method among the claim 1-5, wherein,
The cross section of described fin peristome, described main paragraph, described changeover portion all is any in square, rectangle, ellipse, rule or irregular other polygons.
7. according to each described method among the claim 1-6, wherein,
Described fin is provided with flange and described flange is provided with grooving.
8. method according to claim 7, wherein,
The pass of the height h of the height H of described flange and grooving is: h 〉=0.75H.
9. heat exchanger according to each manufacturing among the claim 1-8 comprises:
At least one heat exchange straight tube, each heat exchange straight tube comprises main paragraph and the changeover portion of mutual smooth connection;
A plurality of fins stacked together, described each fin has at least one fin peristome, the main paragraph of described heat exchange straight tube pass described fin peristome and with its tight contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310174271.4A CN103273295B (en) | 2013-05-10 | 2013-05-10 | Heat exchanger and heat exchanger manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310174271.4A CN103273295B (en) | 2013-05-10 | 2013-05-10 | Heat exchanger and heat exchanger manufacturing method |
Publications (2)
| Publication Number | Publication Date |
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| CN103273295A true CN103273295A (en) | 2013-09-04 |
| CN103273295B CN103273295B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310174271.4A Expired - Fee Related CN103273295B (en) | 2013-05-10 | 2013-05-10 | Heat exchanger and heat exchanger manufacturing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940284A (en) * | 2014-03-21 | 2014-07-23 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger and connection method thereof |
| CN105674785A (en) * | 2014-11-19 | 2016-06-15 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
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| US4601088A (en) * | 1984-05-25 | 1986-07-22 | Kopczynski John F | Method of assembling a plate-fin heat exchanger |
| US5117902A (en) * | 1989-02-01 | 1992-06-02 | Matsushita Electric Industrial Co., Ltd. | Fin tube heat exchanger |
| JP2006125658A (en) * | 2004-10-26 | 2006-05-18 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| US20090308585A1 (en) * | 2008-06-13 | 2009-12-17 | Goodman Global, Inc. | Method for Manufacturing Tube and Fin Heat Exchanger with Reduced Tube Diameter and Optimized Fin Produced Thereby |
| CN102886666A (en) * | 2011-07-22 | 2013-01-23 | 常州市西屋自动化有限公司 | Finned tube locating fixture and assembly method of heat exchanger |
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2013
- 2013-05-10 CN CN201310174271.4A patent/CN103273295B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4601088A (en) * | 1984-05-25 | 1986-07-22 | Kopczynski John F | Method of assembling a plate-fin heat exchanger |
| US5117902A (en) * | 1989-02-01 | 1992-06-02 | Matsushita Electric Industrial Co., Ltd. | Fin tube heat exchanger |
| JP2006125658A (en) * | 2004-10-26 | 2006-05-18 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| US20090308585A1 (en) * | 2008-06-13 | 2009-12-17 | Goodman Global, Inc. | Method for Manufacturing Tube and Fin Heat Exchanger with Reduced Tube Diameter and Optimized Fin Produced Thereby |
| CN102216714A (en) * | 2008-06-13 | 2011-10-12 | 古德曼全球股份有限公司 | Method for manufacturing tube and fin heat exchanger with reduced tube diameter and optimized fin produced thereby |
| CN102886666A (en) * | 2011-07-22 | 2013-01-23 | 常州市西屋自动化有限公司 | Finned tube locating fixture and assembly method of heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940284A (en) * | 2014-03-21 | 2014-07-23 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger and connection method thereof |
| CN103940284B (en) * | 2014-03-21 | 2016-09-14 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger and attaching method thereof |
| CN105674785A (en) * | 2014-11-19 | 2016-06-15 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
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| CN103273295B (en) | 2015-05-13 |
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Granted publication date: 20150513 Termination date: 20200510 |