CN104677162A - Heat exchanger fin, heat exchanger and manufacturing method of heat exchanger fin - Google Patents
Heat exchanger fin, heat exchanger and manufacturing method of heat exchanger fin Download PDFInfo
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- CN104677162A CN104677162A CN201310634310.4A CN201310634310A CN104677162A CN 104677162 A CN104677162 A CN 104677162A CN 201310634310 A CN201310634310 A CN 201310634310A CN 104677162 A CN104677162 A CN 104677162A
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- fin
- sidewall
- fin unit
- heat exchanger
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Abstract
The invention provides a heat exchanger fin. The heat exchanger fin comprises a plurality of fin units which are integrally connected in a certain manner; the sections of the fin units in the circulation direction of an outside fluid are approximately rectangular or trapezoidal; in the length direction of the fin, the adjacent fin units are connected by use of corresponding tops and corresponding first roots and second roots; in addition, the adjacent fin units are arranged in a ladder pattern, and gaps are formed between corresponding first sidewalls and corresponding second sidewalls; in the width direction of the fin, the adjacent fins are connected by use of the corresponding first roots and the corresponding second roots; an reinforcing element serving as a lug and/or a concave portion is integrally formed on one of the first sidewall and the second sidewall, so that the bearing strength of the fin units can be enhanced and the surface heat exchange area of the fin also can be increased; meanwhile, the reinforcing element is matched with the gaps to increase the turbulence between the fin and the fluid, and consequently, the heat exchange efficiency of the heat exchanger with the fin can be improved.
Description
Technical field
The present invention relates to a kind of heat exchanger, particularly relate to a kind of heat exchanger with fin.
Background technology
In recent decades, air conditioner industry and refrigeration industry fast development, and heat exchanger is as one of the chief component of air conditioning and refrigeration equipment, also needs to carry out improving and optimal design according to the requirement of aspect, market; Existing parallel-flow heat exchanger has the features such as refrigerating efficiency is high, volume is little, lightweight, voltage endurance capability is strong, can be good at the requirement meeting market.
Parallel-flow heat exchanger comprises porous flat pipe, radiating fin and header, is provided with header at the two ends of porous flat pipe, is provided with the radiating fin with shutter between adjacent porous flat pipe; Described header is used for distributing and collecting cold-producing medium; Described radiating fin, in order to the heat exchange property of enhanced heat exchange device and external fluid, improves the heat exchange efficiency of described heat exchanger.
Radiating fin of the prior art adopts aluminum foil material usually, the two side of fin is arranged shutter to increase heat exchange area, improve heat exchange efficiency, but shutter easily makes the dust accretions of external fluid also be unfavorable for the discharge of condensed water simultaneously; This radiating fin is by multi-step process simultaneously, and master operation is formed by precision equipment and hobboing cutter roll forming, and complex process, processing cost is high.
Due to the restriction of parallel-flow heat exchanger installation dimension and the requirement of environment for use, need the carrying out of the fin to parallel-flow heat exchanger to improve, while improving the bearing capacity of fin, reduce the accumulation of dust, improve the perturbation of fluid, improve heat exchange efficiency, and be conducive to discharging condensed water.
Therefore, be necessary to improve existing technology, to solve above technical problem.
Summary of the invention
The object of the present invention is to provide a kind of heat exchanger fin, can dust accretions be reduced, the perturbation of fluid can be improved, improve heat exchange property.
For achieving the above object, the present invention adopts following technical scheme: a kind of heat exchanger fin, comprise the first fin unit and the second fin unit, described first fin unit comprises the first side wall, the second sidewall, connects the first top of described the first side wall and described second sidewall; Described second fin unit comprises the 3rd sidewall, the 4th sidewall, connects the second top of described 3rd sidewall and described 4th sidewall; Described first fin unit and described second fin unit are arranged along described finned length direction, be connected by the first top and the second top between described first fin unit with described second fin unit, form the first gap between the described the first side wall of described first fin unit and described 3rd sidewall of described second fin unit, between described second sidewall and described 4th sidewall, form the second gap; Described the first side wall and described second sidewall are at least one-body molded on one of them has the first lug boss of giving prominence to from described first fin unit interior and/or to inner recessed the first recess of described first fin unit.
Described first fin unit and described second fin unit are biased to be arranged, and described the first side wall and described 3rd sidewall are positioned at the same side of fin, and described the first side wall than described 3rd sidewall closer to outside fin; Described second sidewall and described 4th sidewall are positioned at the same side of fin, and described 4th sidewall than described second sidewall closer to outside fin; Described 3rd sidewall of described second unit and described 4th sidewall are at least one-body molded on one of them has the second lug boss of giving prominence to from the second fin unit interior and/or to inner recessed the second recess of described second fin unit.
The described the first side wall of described first fin unit and described 4th sidewall of described second fin unit are provided with the first lug boss and the second lug boss, and described 3rd sidewall of described second sidewall of described first fin unit and described second fin unit is provided with the first recess and the second recess.
Described first fin unit also comprises the first root be connected with the first side wall and the second root be connected with the second sidewall; Described first lug boss and described first recess be from described first top to described first root or described second root direction extend strip projected parts block or strip groove.
Described second fin unit also comprises the 3rd root be connected with described 3rd sidewall and the 4th root be connected with the 4th sidewall; Described second lug boss or described second recess be from described second top to described 3rd root or described 4th root direction extend strip projected parts block or strip groove.
Described strip projected parts block on described the first side wall extends to the first root, strip projected parts block on described 4th sidewall extends to the 4th root, strip groove on described second sidewall extends to the first top, and the strip groove on described 3rd sidewall extends to the second top.
Described fin also comprises the 3rd fin unit and the 4th fin unit, and described 3rd fin unit and described first fin unit are arranged along the width of described fin, and described 4th fin unit and described second fin unit are arranged along the width of fin; Described first fin unit is connected by described first root or described second root with described 3rd wing unit, and described 4th fin unit is connected by described 3rd root or described 4th root with described second fin unit.
Described first lug boss is the discrete protruding block being distributed in multiple circle on described the first side wall or ellipse, and described first recessed piece is discrete recessed piece of being distributed in multiple circle on described second sidewall or ellipse.
The invention also discloses a kind of heat exchanger, it comprises above-described heat exchanger fin.
The invention also discloses a kind of processing method of heat exchanger fin, described heat exchanger fin comprises the first fin unit and the second fin unit, and described first fin unit comprises the first top of the first side wall, the second sidewall, connection the first side wall and the second sidewall; One-body molded on described the first side wall and described second sidewall at least one of them have in lug boss and/or recess; The process of described heat exchanger fin comprises the following steps:
S1, plate cutting, comprises and being positioned on mould by aluminium flake, and repairs the edge of aluminium flake;
S2, shaping, form described heat exchanger fin by Mould Machining;
S3, cut off, the dimensional requirement according to heat exchanger carries out cutting to shaping heat exchanger fin;
Wherein S2 step comprises following sub-step:
S21, pressing and bending, forms multiple square wave of being arranged side by side or trapezoidal wave by plate stamping;
S22, extruded: to form fin unit by extruding, and form gap between adjacent fins unit; Described fin unit, comprises the first side wall, the second sidewall, top and root;
S23, lug boss or recess shaping, utilize cutter to be processed to form lug boss and/or recess on the first side wall, the second sidewall.
Compared with prior art, the present invention, by improving fin structure, makes the gap having a certain size between adjacent fins unit sidewall, and do not contact with each other, the angle that both sides, gap directly do not contact, such gap location is just not easy to accumulate dust, and what external fluid was flowed is more unobstructed; Lug boss or recess are set on the sidewall of fin unit simultaneously, increase the perturbation of fluid, improve heat exchange property.
Accompanying drawing explanation
Fig. 1 is the structural representation of heat exchanger of the present invention;
Fig. 2 is the position relationship schematic diagram of heat exchanger fin of the present invention and adjacent fins;
Fig. 3 is the heat exchanger fin of first embodiment of the invention and the structural representation of adjacent fins unit;
Fig. 4 is the heat exchanger fin of second embodiment of the invention and the structural representation of adjacent fins unit;
Fig. 5 is the structural representation of heat exchanger fin of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Present invention is disclosed a kind of heat exchanger, be described for parallel-flow heat exchanger in the present embodiment, see Fig. 1, heat exchanger 10 comprises for collecting with the first header 1 distributing internal flow and the second header 2, being communicated with the first header 1 and the second header 2 and the some flat tubes 4 be positioned between the two, and the fin 3 arranged between adjacent flat tube 4.
Fig. 2 is adjacent flat tube 4 and the structural representation of fin 3, wherein the length direction of the direction of arrow to be the flow direction of external fluid be also fin, and the cross section of fin 3 on outside fluid flow direction is rectangle or trapezoidal; Arrange fin 3 between adjacent flat tube, fin 3 comprises the multiple fin units by diagramatic way arrangement.
Be illustrated in figure 3 the first embodiment of heat exchanger fin of the present invention; Be described for the structure of adjacent fin unit to fin of two on external fluid circulating direction; First fin unit 31 comprises the first side wall 311, second sidewall 312, connect the first top 313 of the first side wall 311 one end and the second sidewall 312 and with bend the first root 314 and the second root (not shown) extended from the first side wall 311 and the second sidewall 312; Second fin unit 32, second fin unit 32 adjacent with the first fin unit 31 comprise the 3rd sidewall 321, the 4th sidewall 322, connect the 3rd sidewall 321 one end and the 4th sidewall 322 the second top 323 and with bend the 3rd root 324 and the 4th root 325 that extend from the 3rd sidewall 321 and the 4th sidewall 322; On the flow direction of external fluid, the first fin unit 31 and the second fin unit 32 are biased; The first side wall 311 and the 3rd sidewall 321 are positioned at the same side of fin unit, and the first side wall 311 to the three sidewall 321 is closer to outside fin unit, forms the first gap 36 between the first side wall 311 and the 3rd sidewall 321; Second sidewall 312 and the 4th sidewall 322 are positioned at the same side of fin, and the 4th sidewall 322 to the second sidewall 12 is closer to outside fin unit, forms the second gap (not shown) between the second sidewall 312 and the 4th sidewall 322; The inside of wherein said first fin unit refers to the space surrounded by the first side wall 311, second sidewall 312, first top 313; Described second fin unit inside refers to the space surrounded by the 3rd sidewall 321, the 4th sidewall 322, second top 323; Described the same side to refer on the width of fin for the length center line of fin unit.
First fin unit 31 is connected with the 3rd root 324 with the second top 323, corresponding the first root 314 arranged and the 4th root 325 and corresponding the second root 312 arranged by corresponding the first top 313 arranged with the second fin unit 32, the first adjacent like this fin unit 31 is not connected with the sidewall of the second fin unit 32, namely a certain size gap is had between two groups of corresponding sidewalls, and do not contact with each other, the angle that both sides, gap directly do not contact, such gap location is just not easy to accumulate dust, and what external fluid was flowed is more unobstructed; In the present invention, the first fin unit 31 and the second fin unit 32 are referred to as fin unit, and the first top 313 and the second top 323 are referred to as top, and the first root 314, second root, the 3rd root 324 and the 4th root 325 are referred to as root.
On the first side wall 311 of the first fin unit 31 and the second sidewall 312, integrated punching forms reinforcing element, the reinforcing element that wherein the first side wall 311 is arranged comprises two strip projected parts blocks 318 of laid out in parallel, the reinforcing element that second sidewall 312 is arranged comprises two strip grooves 319 of laid out in parallel, the reinforcing element that 3rd sidewall 321 of second fin unit 32 adjacent on external fluid circulating direction with the first fin unit 31 is arranged comprises two strip grooves 329 of laid out in parallel, the reinforcing element that 4th sidewall 322 is arranged comprises two strip projected parts block (not shown)s of laid out in parallel, like this, sidewall is arranged the bearing strength that such reinforcing element not only can strengthen fin unit, and increase the area of surface-heat transfer of fin, simultaneously reinforcing element and matched in clearance, increase the disturbance between fin and fluid, improve the heat exchange efficiency of the heat exchanger with above-mentioned fin, owing to not needing at fin uplifting window, avoid the dust stratification problem of window, usually, the area of described reinforcing element accounts for fin unit single-sided side walls area and is greater than 70%, heat exchange property is improved while the load performance ensureing fin, in the present invention, the first strip protruding block 318 and the second strip protruding block are referred to as strip projected parts block, and the first strip groove 319 and the second strip groove 329 are referred to as strip groove.Certainly, reinforcing element the first side wall 311, second sidewall 312, the 3rd sidewall 321 and the 4th sidewall 322 arranged can be strip projected parts block or strip groove simultaneously; But flow-disturbing effect is slightly poorer.
First root 314, second strip protruding block one end that first strip protruding block 318 one end extends to the first fin unit 31 extends to the 4th root 325 of the second fin unit 32; One end that one end of first strip groove block extends to the first top 313, second strip groove block extends to the first top 313; Like this, in process, the mechanism of process tool and fin sheet material terminates to have exited the rear just direct fin from being shaped, and does not need extra withdrawing operation, both decreases manufacturing procedure, in turn ensure that processing continuity and the machining accuracy of reinforcing element.Can certainly be that one end of strip projected parts block extends to top, strip groove block one end extends to bottom.
As shown in Figure 5, the first fin unit 31 and two fin units of the second fin unit 32 for arranging along fin 3 length direction (left and right directions shown in Fig. 5); At the width (fore-and-aft direction shown in Fig. 5) along fin 3, fin 3 also comprises three fin unit 33 adjacent with the first fin unit 31, four fin 34 adjacent with the second fin unit, first fin unit 31 is connected by the first root 314 or the second root with the 3rd fin unit 33, and the second fin unit 32 is connected by the 3rd root 324 or the 4th root 325 with the 4th fin unit 34.
Be illustrated in figure 4 the second embodiment of the present invention; Fig. 4 carries out being described the structure of fin for the adjacent fin unit of two on external fluid circulating direction; The main distinction point of the structure of the fin in the structure of the fin in the second embodiment and the first embodiment is: each sidewall being arranged at the first fin unit 31 adjacent on external fluid circulating direction and the second fin unit 32 is provided with multiple in convexity with oval protruding block or recessed piece; The protruding block of circular and convexity or recessed piece are punch forming, and the shape matching of protruding block or recessed piece is random, to the requirement of cutter relatively loosely, process more convenient.
The invention also discloses a kind of micro-channel heat exchanger 10, comprise for collecting with the first header 1 distributing internal flow and the second header 2, being communicated with the first header 1 and the second header 2 and the some flat tubes 4 be positioned between the two, and be provided with fin 3 between adjacent flat tube 4, wherein fin 3 is above-described fin.
The present invention also discloses a kind of manufacture method of above-mentioned heat exchanger fin, and the process of described heat exchanger fin comprises the following steps:
S1, plate cutting, comprises and being positioned on mould by aluminium flake, and repairs the edge of aluminium flake;
S2, shaping, form described heat exchanger fin by Mould Machining;
S3, cut off, the dimensional requirement according to heat exchanger carries out cutting to shaping heat exchanger fin;
Wherein S2 step comprises following sub-step:
S21, pressing and bending, forms multiple rectangle of being arranged side by side or trapezoidal wave by plate stamping;
S22, extruded: to form fin unit by extruding, and form gap between adjacent fins unit; Described fin unit, comprises the first side wall, the second sidewall, top and root;
S23, punching press forms lug boss or recess, utilizes cutter to be processed to form lug boss and/or recess on the first side wall, the second sidewall.
S2 step also comprises following sub-step: S24, and cutter sky step is run, for repairing lug boss and/or the depressed part of non-forming.
Adopt above-mentioned process, technique is simple, not high to the required precision of machining tool, reduces the processing cost of fin.
It should be noted that: above embodiment is only for illustration of the present invention and unrestricted technical scheme described in the invention, although this description reference the above embodiments are to present invention has been detailed description, but, those of ordinary skill in the art is to be understood that, person of ordinary skill in the field still can modify to the present invention or equivalent replacement, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, all should be encompassed in right of the present invention.
Claims (10)
1. a heat exchanger fin, comprises the first fin unit and the second fin unit, and described first fin unit comprises the first side wall, the second sidewall, connects the first top of described the first side wall and described second sidewall; Described second fin unit comprises the 3rd sidewall, the 4th sidewall, connects the second top of described 3rd sidewall and described 4th sidewall; Described first fin unit and described second fin unit are arranged along described finned length direction, it is characterized in that: be connected by the first top and the second top between described first fin unit with described second fin unit, form the first gap between the described the first side wall of described first fin unit and described 3rd sidewall of described second fin unit, between described second sidewall and described 4th sidewall, form the second gap; Described the first side wall and described second sidewall are at least one-body molded on one of them has the first lug boss of giving prominence to from described first fin unit interior and/or to inner recessed the first recess of described first fin unit.
2. heat exchanger fin according to claim 1, it is characterized in that: described first fin unit and described second fin unit are biased and arrange, described the first side wall and described 3rd sidewall are positioned at the same side of fin, and described the first side wall than described 3rd sidewall closer to outside fin; Described second sidewall and described 4th sidewall are positioned at the same side of fin, and described 4th sidewall than described second sidewall closer to outside fin; Described 3rd sidewall of described second unit and described 4th sidewall are at least one-body molded on one of them has the second lug boss of giving prominence to from the second fin unit interior and/or to inner recessed the second recess of described second fin unit.
3. heat exchanger fin according to claim 2, it is characterized in that: the described the first side wall of described first fin unit and described 4th sidewall of described second fin unit are provided with the first lug boss and the second lug boss, and described 3rd sidewall of described second sidewall of described first fin unit and described second fin unit is provided with the first recess and the second recess.
4. the heat exchanger fin according to any one of claim 1-3, is characterized in that: described first fin unit also comprises the first root be connected with the first side wall and the second root be connected with the second sidewall; Described first lug boss and described first recess be from described first top to described first root or described second root direction extend strip projected parts block or strip groove.
5. heat exchanger fin according to claim 2, is characterized in that: described second fin unit also comprises the 3rd root be connected with described 3rd sidewall and the 4th root be connected with the 4th sidewall; Described second lug boss or described second recess be from described second top to described 3rd root or described 4th root direction extend strip projected parts block or strip groove.
6. the heat exchanger fin according to claim 4 or 5, it is characterized in that: the described strip projected parts block on described the first side wall extends to the first root, strip projected parts block on described 4th sidewall extends to the 4th root, strip groove on described second sidewall extends to the first top, and the strip groove on described 3rd sidewall extends to the second top.
7. heat exchanger fin according to claim 1, it is characterized in that: described fin also comprises the 3rd fin unit and the 4th fin unit, described 3rd fin unit and described first fin unit are arranged along the width of described fin, and described 4th fin unit and described second fin unit are arranged along the width of fin; Described first fin unit is connected by described first root or described second root with described 3rd wing unit, and described 4th fin unit is connected by described 3rd root or described 4th root with described second fin unit.
8. heat exchanger fin according to claim 1, it is characterized in that: described first lug boss is the discrete protruding block being distributed in multiple circle on described the first side wall or ellipse, described first recessed piece is discrete recessed piece of being distributed in multiple circle on described second sidewall or ellipse.
9. a heat exchanger, is characterized in that: it comprises the heat exchanger fin described in any one of claim 1-8.
10. a processing method for heat exchanger fin, described heat exchanger fin comprises the first fin unit and the second fin unit, and described first fin unit comprises the first top of the first side wall, the second sidewall, connection the first side wall and the second sidewall; Described the first side wall and described second sidewall one of at least on one-body moldedly have in lug boss and/or recess; The process of described heat exchanger fin comprises the following steps:
S1, plate cutting, comprises and being positioned on mould by aluminium flake, and repairs the edge of aluminium flake;
S2, shaping, form described heat exchanger fin by Mould Machining;
S3, cut off, the dimensional requirement according to heat exchanger carries out cutting to shaping heat exchanger fin;
Wherein S2 step comprises following sub-step:
S21, pressing and bending, forms multiple square wave of being arranged side by side or trapezoidal wave by plate stamping;
S22, extruded: to form fin unit by extruding, and form gap between adjacent fins unit; Described fin unit, comprises the first side wall, the second sidewall, top and root;
S23, lug boss or recess shaping, utilize cutter to be processed to form lug boss and/or recess on the first side wall, the second sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310634310.4A CN104677162A (en) | 2013-11-29 | 2013-11-29 | Heat exchanger fin, heat exchanger and manufacturing method of heat exchanger fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310634310.4A CN104677162A (en) | 2013-11-29 | 2013-11-29 | Heat exchanger fin, heat exchanger and manufacturing method of heat exchanger fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104677162A true CN104677162A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310634310.4A Pending CN104677162A (en) | 2013-11-29 | 2013-11-29 | Heat exchanger fin, heat exchanger and manufacturing method of heat exchanger fin |
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| Country | Link |
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| CN (1) | CN104677162A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869930A (en) * | 2016-09-28 | 2018-04-03 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat-exchanging component, heat exchanger and mould for heat exchanger |
| CN112985157A (en) * | 2021-03-04 | 2021-06-18 | 浙江银轮机械股份有限公司 | Fin unit and fin |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032831A (en) * | 2009-09-28 | 2011-04-27 | 无锡市鑫盛换热器制造有限公司 | Radiating fin |
| US20150226496A1 (en) * | 2012-09-26 | 2015-08-13 | Hangzhou Sanhua Research Institute Co., Ltd. | Fin of heat exchanger and heat exchanger |
-
2013
- 2013-11-29 CN CN201310634310.4A patent/CN104677162A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032831A (en) * | 2009-09-28 | 2011-04-27 | 无锡市鑫盛换热器制造有限公司 | Radiating fin |
| US20150226496A1 (en) * | 2012-09-26 | 2015-08-13 | Hangzhou Sanhua Research Institute Co., Ltd. | Fin of heat exchanger and heat exchanger |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869930A (en) * | 2016-09-28 | 2018-04-03 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat-exchanging component, heat exchanger and mould for heat exchanger |
| WO2018059443A1 (en) * | 2016-09-28 | 2018-04-05 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchange assembly for heat exchanger, heat exchanger, and mold |
| US11118839B2 (en) | 2016-09-28 | 2021-09-14 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. | Heat exchange assembly for heat exchanger, heat exchanger, and mold |
| CN112985157A (en) * | 2021-03-04 | 2021-06-18 | 浙江银轮机械股份有限公司 | Fin unit and fin |
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Application publication date: 20150603 |