CN102735076A - Heat exchanger capable of preventing fins from being dropped - Google Patents
Heat exchanger capable of preventing fins from being dropped Download PDFInfo
- Publication number
- CN102735076A CN102735076A CN2012102105066A CN201210210506A CN102735076A CN 102735076 A CN102735076 A CN 102735076A CN 2012102105066 A CN2012102105066 A CN 2012102105066A CN 201210210506 A CN201210210506 A CN 201210210506A CN 102735076 A CN102735076 A CN 102735076A
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- fin
- heat exchanger
- lug boss
- connector
- flat tube
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Abstract
The invention discloses a heat exchanger capable of preventing fins from being dropped. By the heat exchanger, the defect of high possibility of dropping of fins in the conventional heat exchanger is overcome. According to the scheme, the heat exchanger comprises an upper header pipe, a lower header pipe, flat pipes and the fins, wherein the flat pipes are connected between the upper header pipe and the lower header pipe; the fins are arranged between the adjacent flat pipes and comprise a plurality of fin main bodies which are adjacent to each other and connectors for connecting ends of the adjacent fin main bodies; and lug bosses which face the flat pipes are arranged on the connectors. The heat exchanger capable of preventing the fins from being dropped is mainly used for heat exchangers and micro-channel heat exchangers in the field of various household/commercial air conditioners, so that the fixing effect of the fins can be improved, the fins are prevented from being dropped in the processes of welding and using products, the quality of the products is improved, and the service life of the products is prolonged.
Description
Technical field
The present invention relates to a kind of heat exchanger.
Background technology
Heat exchanger is an equipment of realizing that heat transmits between cold and hot fluid; Be widely used in family expenses/business air conditioner field; With reference to Fig. 1; The structure of existing heat exchanger: comprise header (not shown), flat tube 01 and fin 02, flat tube 01 is connected between header and the lower header, and fin 02 is provided with the purpose that plays the reinforcement heat exchange between two adjacent flat tubes 01.When producing heat exchanger; At first piece strappings such as header, flat tube and fin are fixed, sent into furnace brazing again, in brazing process; Owing to only depend on the contact friction force location between fin and the flat tube; Vibrations when product is carried and self gravitation influence can make fin and flat tube position misplace, and cause the product failure welding.In addition, heat exchanger is corroded in environment for use or is shaken cracking, also can be solder joint is broken off, and causes fin to drop.The fin that drops all can occur welding unreliable and the stifled higher defective of product weldering as if gluing benefit or secondary welding, and cost also can correspondingly improve.
Summary of the invention
The object of the invention just provides the anti-lost heat exchanger of a kind of fin, improves the fixed effect of fin, prevents that fin from dropping in product welding and use, improves the quality of products and service life.
For achieving the above object; The present invention adopts following technical scheme: the heat exchanger that a kind of fin is anti-lost; Comprise header, lower header, flat tube and fin, said flat tube is connected between header and the lower header, and said fin is installed between the adjacent flat tube; Said fin comprises a plurality of fin main bodys adjacent one another are and the connector that the end of adjacent fins main body is connected, and said connector is provided with the lug boss towards flat tube.
Further, said lug boss comprises the straightway and the arc section that is connected two straightways that extends to said connector two ends, and said straightway extends to the end position of connector.
Further, said lug boss comprises the straightway and the middle straight line segment that is connected two straightways that extends to said connector two ends, and said straightway extends to the end position of connector.
Further, said lug boss is located at the medium position of said connector.
Further, said lug boss is located at the end position of said connector.
Further, said lug boss and said connector are one-body molded.
Further, the height of said lug boss is L, and L satisfies 0.01mm≤L≤0.1mm.
Further, said fin is a louvered fin.
Further, be provided with MCA in the said flat tube.
Beneficial effect of the present invention:
1, the present invention is provided with lug boss on the connector of fin; When flat tube and fin were tied up fixedly, flat tube at first applied pressure on the lug boss, and lug boss produces compression; Closely contact with the connector of fin until flat tube; Has bigger frictional force between the contact site of lug boss and flat tube, in brazing process, even heat exchanger is given a shock; Frictional force between lug boss and the flat tube can guarantee that also fin can not produce lateral displacement or length travel, thereby has guaranteed the welding quality between fin and the flat tube.
2, in the heat exchanger use, to break off even solder joint occurs, the frictional force between the contact site of lug boss and flat tube can guarantee that also fin can not drop, thereby has improved product quality and service life.
3, owing to have suitable predetermined contact area between lug boss of the present invention and the flat tube; Lug boss can not be absorbed in the flat tube top layer when compression; Prevent that the flat tube internal structure is damaged, and lug boss stressed comparatively even when compression, thereby on the basis that guarantees frictional force; Can not make fin main body and flat tube produce large deformation, particularly the flat tube of micro-channel heat exchanger.
4, the present invention only needs on the connector of fin, lug boss to be set, and the structure of flat tube and fin main body all can not done change, compares prior art, and scenario-frame of the present invention is simple, low cost of manufacture.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further explanation and explanation:
Fig. 1 is the structural representation of existing heat exchanger;
Fig. 2 is the fin structure sketch map of heat exchanger embodiments one of the present invention;
Fig. 3 is the fin overall structure sketch map of heat exchanger embodiments one of the present invention
Fig. 4 is the fin structure sketch map of heat exchanger embodiments two of the present invention;
Fig. 5 is the fin structure sketch map of heat exchanger embodiments three of the present invention;
Fig. 6 is the fin structure sketch map of heat exchanger embodiments four of the present invention;
Fig. 7 is the fin of heat exchanger embodiments five of the present invention and the syndeton sketch map of flat tube.
The specific embodiment
The anti-lost heat exchanger of a kind of fin provided by the present invention; Include header, lower header, flat tube and fin; Said flat tube is connected between header and the lower header; Said fin is installed between the adjacent flat tube, and said fin comprises a plurality of fin main bodys adjacent one another are and the connector that the end of adjacent fins main body is connected, and said connector is provided with the lug boss towards flat tube.When flat tube and fin were tied up fixedly, lug boss produced compression, make to have bigger frictional force between the contact site of lug boss and flat tube, thereby assurance product fin in soldering and use can not drop.
The technical scheme of the embodiment of the invention is made an explanation and explain below in conjunction with the accompanying drawing of the embodiment of the invention, but following embodiment is the preferred embodiments of the present invention only, is not whole.Based on the embodiment in the embodiment, those skilled in the art belong to protection scope of the present invention at following other embodiment that obtains of the prerequisite of not making creative work.
Embodiment one:
With reference to Fig. 2,3; Heat exchanger; Include header, lower header, flat tube (connected mode that goes up header, lower header, flat tube has belonged to common practise, so do not illustrate in the drawings) and fin 1, flat tube is connected between header and the lower header; Fin 1 is installed between the adjacent flat tube; Fin 1 comprises a plurality of fin main bodys 11 adjacent one another are and the connector 12 that the end of adjacent fins main body 11 is connected, and fin 1 integral body is wavy, and connector 12 is provided with the lug boss 2 towards flat tube.In the present embodiment, on the connector 12 of fin main body 11 both sides, be equipped with lug boss 2, make to prevent that fin from the situation of inclination occurring because of unbalance stress by the stressed even of both sides.Lug boss 2 in the present embodiment comprises the straightway 21 and the arc section that is connected two straightways 21 22 that extends to said connector 12 two ends; For reaching an effect preferably; Straightway 21 extends to the end of connector 12 always, and the lug boss ratio is easier to be compressed like this.
The height of lug boss 2 is L, promptly before lug boss does not compress, and the vertical interval between connector 12 surfaces and the lug boss arc section 22, L satisfies 0.01mm≤L≤0.1mm; Preferably: L is 0.01mm, 0.02mm, 0.03mm, 0.04mm; 0.05mm, 0.06mm, 0.07mm; 0.08mm, 0.09mm, 0.1mm.Can form an angle between two straightways 21 of lug boss 2, if α is excessive, lug boss can make fin produce large deformation in compression; Not only assembling difficulty; And make easily between fin connector 12 and the flat tube and produce the gap, welding quality descends, if α is too small; Then can cause thrust deficiency between fin and the flat tube, lug boss does not have application results.For this reason, should make α have suitable angle, make L satisfy 0.01mm≤L≤0.1mm, can guarantee that like this can produce enough frictional force after the lug boss compression locatees fin, also can not make fin produce excessive deformation.
Need to prove: above-mentioned connector 12 two ends are meant the two ends of connector 12 horizontal directions, promptly perpendicular to the direction of flat tube.
In the present embodiment; Only be provided with a lug boss 2, but the straightway 21 of lug boss 2 extends to the end of connector 12 always, and connect through arc section 22 between two straightways 21 at the medium position that connects; Being arranged so that of arc section 22 has certain predetermined contact area between lug boss and the flat tube; Guarantee that lug boss can not be absorbed in the flat tube top layer when compression, prevent that the flat tube internal structure is damaged, and particularly has the flat tube of MCA.In addition; After flat tube was exerted pressure to lug boss, because the height L of lug boss satisfies 0.01mm≤L≤0.1mm, the compression of lug boss was from arc section 22 beginnings; Extend to gradually on the straightway 21; Last whole lug boss is driven plain and closely contacts with the flat tube surface, has not only improved frictional force, has also reduced the thermal resistance between fin and flat tube.
Embodiment two:
With reference to Fig. 4, the heat exchanger of present embodiment and embodiment one are roughly the same, and different is: lug boss 2 comprises the straightway 21 and the middle straight line segment 23 that is connected two straightways 21 that extends to connector 12 two ends.Utilize middle straight line segment 23 that the straightway 21 of lug boss 2 both sides is connected; Has bigger predetermined contact area between middle straight line segment 23 and flat tube; Compare embodiment one; Though the thrust of lug boss distortion is reduced to some extent, it will be appreciated by those skilled in the art that: the frictional force of predetermined contact site is compared other positions of lug boss and wanted big, therefore increase predetermined contact area and can reach the object of the invention equally; In addition, the height L of present embodiment protrusions portion equally also will satisfy 0.01mm≤L≤0.1mm.
Embodiment three:
With reference to Fig. 5,
Be different from embodiment one and embodiment two, in the present embodiment, lug boss 2 is arranged on the end position of connector 12; The two ends that are connector 12 respectively are provided with a lug boss 2; The principle of present embodiment is same as the previously described embodiments, but when the design lug boss, can slightly reduce the height L of lug boss; Because of present embodiment increases the predetermined contact area between flat tube and the connector 12 through the mode that increases lug boss quantity, can reach the object of the invention equally.But the structure reference implementation of lug boss 2 example one or embodiment two no longer detail.
Need to prove: above-mentioned predetermined contact area is meant that lug boss 2 touches the area at the position of flat tube in advance when fin 1 and flat tube soldering, and when lug boss was squeezed, the suffered frictional force in this position was greater than the frictional force at other positions of lug boss.
Embodiment four:
With reference to Fig. 6, in the present embodiment, fin 1 is a louvered fin, and the fenestration 13 of louvered fin can make air flow boundary layer periodic interruptions, simultaneously air stream is play the guiding role, thereby realizes the air enhanced heat exchange.The convex structure of embodiment can be with reference to above-mentioned arbitrary embodiment.
Embodiment five:
With reference to Fig. 7, in the present embodiment, heat exchanger is a micro-channel heat exchanger, in flat tube 4, is provided with MCA 41, and micro-channel heat exchanger has in light weight, compact conformation, the advantage that heat exchange efficiency is high, instead of copper material and tool cost advantage; Simultaneously, the characteristics that its internal capacity is little help significantly reducing refrigerant charge, meet the trend of energy-conserving and environment-protective.The convex structure of embodiment can be with reference to above-mentioned arbitrary embodiment.
In addition, the lug boss 2 among above-mentioned arbitrary embodiment is normally integrated with connector 12, as on connector 12, rolling out lug boss through the fin former, also can be to go out lug boss through the pressing equipment punching out.
The embodiment of the invention is mainly used in the heat exchanger, micro-channel heat exchanger in various family expenses/business air conditioner field etc.
Through the foregoing description, the object of the invention is by in full force and effect having reached.The personage who is familiar with this skill should be understood that the content that the present invention includes but be not limited to describe in the accompanying drawing and the top specific embodiment.Any modification that does not depart from function of the present invention and structural principle all will be included in the scope of claims.
Claims (9)
1. heat exchanger that fin is anti-lost; Comprise header, lower header, flat tube and fin; Said flat tube is connected between header and the lower header; Said fin is installed between the adjacent flat tube, and said fin comprises a plurality of fin main bodys adjacent one another are and the connector that the end of adjacent fins main body is connected, and it is characterized in that: said connector is provided with the lug boss towards flat tube.
2. the anti-lost heat exchanger of a kind of fin as claimed in claim 1 is characterized in that: said lug boss comprises the straightway and the arc section that is connected two straightways that extends to said connector two ends, and said straightway extends to the end position of connector.
3. the anti-lost heat exchanger of a kind of fin as claimed in claim 1 is characterized in that: said lug boss comprises the straightway and the middle straight line segment that is connected two straightways that extends to said connector two ends, and said straightway extends to the end position of connector.
4. the anti-lost heat exchanger of a kind of fin as claimed in claim 1, it is characterized in that: said lug boss is located at the medium position of said connector.
5. the anti-lost heat exchanger of a kind of fin as claimed in claim 1, it is characterized in that: said lug boss is located at the end position of said connector.
6. the anti-lost heat exchanger of a kind of fin as claimed in claim 1 is characterized in that: said lug boss and said connector are one-body molded.
7. the anti-lost heat exchanger of a kind of fin as claimed in claim 1 is characterized in that: the height of said lug boss is L, and L satisfies 0.01mm≤L≤0.1mm.
8. the anti-lost heat exchanger of a kind of fin as claimed in claim 1 is characterized in that: said fin is a louvered fin.
9. the anti-lost heat exchanger of a kind of fin as claimed in claim 1 is characterized in that: be provided with MCA in the said flat tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102105066A CN102735076A (en) | 2012-06-20 | 2012-06-20 | Heat exchanger capable of preventing fins from being dropped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102105066A CN102735076A (en) | 2012-06-20 | 2012-06-20 | Heat exchanger capable of preventing fins from being dropped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102735076A true CN102735076A (en) | 2012-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102105066A Pending CN102735076A (en) | 2012-06-20 | 2012-06-20 | Heat exchanger capable of preventing fins from being dropped |
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| Country | Link |
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| CN (1) | CN102735076A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697638A (en) * | 2013-11-25 | 2014-04-02 | 江苏炳凯富汽车零部件制造有限公司 | Fin falling prevention type parallel flow condenser |
| CN108007251A (en) * | 2017-11-30 | 2018-05-08 | 博耐尔汽车电气系统有限公司 | A kind of automobile air conditioner parallel flow condenser fin |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3702021A (en) * | 1969-03-04 | 1972-11-07 | Chrysler Uk | Methods of making heat exchangers |
| JPH11311488A (en) * | 1998-04-28 | 1999-11-09 | Nippon Light Metal Co Ltd | Heat exchanger |
| CN101608880A (en) * | 2008-08-01 | 2009-12-23 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchanger and fin thereof |
| CN102483313A (en) * | 2009-09-16 | 2012-05-30 | 开利公司 | Free-draining finned surface architecture for a heat exchanger |
-
2012
- 2012-06-20 CN CN2012102105066A patent/CN102735076A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3702021A (en) * | 1969-03-04 | 1972-11-07 | Chrysler Uk | Methods of making heat exchangers |
| JPH11311488A (en) * | 1998-04-28 | 1999-11-09 | Nippon Light Metal Co Ltd | Heat exchanger |
| CN101608880A (en) * | 2008-08-01 | 2009-12-23 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchanger and fin thereof |
| CN102483313A (en) * | 2009-09-16 | 2012-05-30 | 开利公司 | Free-draining finned surface architecture for a heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697638A (en) * | 2013-11-25 | 2014-04-02 | 江苏炳凯富汽车零部件制造有限公司 | Fin falling prevention type parallel flow condenser |
| CN108007251A (en) * | 2017-11-30 | 2018-05-08 | 博耐尔汽车电气系统有限公司 | A kind of automobile air conditioner parallel flow condenser fin |
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| PB01 | Publication | ||
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Application publication date: 20121017 |