CN101017068A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN101017068A CN101017068A CNA2007100052078A CN200710005207A CN101017068A CN 101017068 A CN101017068 A CN 101017068A CN A2007100052078 A CNA2007100052078 A CN A2007100052078A CN 200710005207 A CN200710005207 A CN 200710005207A CN 101017068 A CN101017068 A CN 101017068A
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- CN
- China
- Prior art keywords
- heat exchanger
- vre
- louver
- air
- wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
- F28F1/128—Fins with openings, e.g. louvered fins
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Disclosed is a heat exchanger having a corrugated fin (5) on which a plurality of louvers (12, 14) are arranged in an air-flow direction (D), wherein a length A in the air-flow direction (D) of each of a windward flat portion (11) and a leeward flat portion (15) is set in a range of 0.5 mm to 1.1 mm, a length B of an intermediate flat portion (13) is set in a range of 0.5 mm to 1.7 mm, an inclination angle of each of the windward louvers (12) and the leeward louvers (14) is set in a range of 23 degrees to 26 degrees, and a length of a chord (5b) of a circular arc portion forming a turning part (5a) of the corrugated fin (5) is set at a length of 1.2 mm or more. By optimizing all of these factors, the efficiency for heat exchange of the heat exchanger may be greatly improved.
Description
Technical field
The present invention relates to a kind of heat exchanger with wave-shaped fins, air-flow direction is arranged a plurality of louver(-vre)s in the wave-shaped fins upper edge, relates more specifically to a kind of heat exchanger that uses in the refrigeration system as vehicle air conditioner that is applicable to.
Background technology
In conventional heat exchanger, for example be manage therein with the alternately laminated stacked heat exchanger of wave-shaped fins in, known structure is that a plurality of louver(-vre)s are arranged on each wave-shaped fins along air-flow direction, improved the efficient (for example, the open 55-167087 communique of Japanese Utility Model) of heat exchanger thus.
In this heat exchanger, same known structure be on wave-shaped fins from the air-flow direction upstream side form flat part, the one group of louver(-vre) that facings the wind that tilts with respect to air-flow direction separately, neutral straight portion down with the wind successively, each is comfortable one group of leeward louver(-vre) and leeward flat part that the direction opposite with the incline direction of louver(-vre) down with the wind tilt.In addition, a common part by cutting and raising wave-shaped fins forms each louver(-vre).
In this heat exchanger, the position by wave-shaped fins shape and in groups facing the wind louver(-vre) and leeward louver(-vre) in groups, inclination angle etc. are greatly changed the efficient of heat exchanger.For example, by the inclination angle of facing the wind louver(-vre) and leeward louver(-vre), facing the wind flat part and the parameters such as length of leeward flat part on air-flow direction, change the efficient of heat exchanger.
Although proposed to be used to optimize facing the wind louver(-vre) and the inclination angle of leeward louver(-vre) and the scheme (for example JP-A-2005-140454) of shape, had the leeway of further improving.
Summary of the invention
Therefore, need provide the isoparametric heat exchanger in inclination angle of the louver(-vre) that is provided with on a kind of shape that can further optimize wave-shaped fins in the heat exchanger, the wave-shaped fins, further improve the heat exchanger effectiveness of heat exchanger thus.
Heat exchanger according to the present invention has wave-shaped fins, air-flow direction is furnished with a plurality of louver(-vre)s in described wave-shaped fins upper edge, it is characterized in that, one group of leeward louver(-vre) and leeward flat part that the direction opposite with the incline direction of the louver(-vre) that facings the wind that upstream side from air-flow direction on wave-shaped fins forms the flat part that facings the wind, the one group of louver(-vre) that facings the wind that tilts with respect to air-flow direction separately, neutral straight portion successively, each is comfortable tilts, and
(a) each length on air-flow direction of facining the wind in flat part and the leeward flat part is set in the scope of 0.5mm-1.1mm,
(b) length of neutral straight portion on air-flow direction is set in the scope of 0.5mm-1.7mm,
(c) each inclination angle with respect to air-flow direction that facings the wind in louver(-vre) and the leeward louver(-vre) is set in the scopes of 23 degree-26 degree, and
(d) length of the string of the arc sections of formation wave-shaped fins turn fractions is set at more than the 1.2mm.
In the more satisfactory embodiment of this heat exchanger, preferably each facing the wind flat part and leeward flat part length on air-flow direction are set in the scope of 0.7mm-0.9mm.In addition, preferably the length of neutral straight portion on air-flow direction is set in the scope of 0.9mm-1.3mm.In addition, preferably each facing the wind louver(-vre) and leeward louver(-vre) are set in the scopes of 23.5 degree-25 degree with respect to the inclination angle of air-flow direction, and in the most satisfactory embodiment, this inclination angle is set at 24 degree.
In addition, the length of the string of the arc sections of formation wave-shaped fins turn fractions is set at more than the 1.2mm.Be detained air that passes through or the air dead band that forms eddy current although might near the turn fractions of wave-shaped fins, form, if but the length of string that forms the arc sections of wave-shaped fins turn fractions is set to less than 1.2mm, then air flow resistance can increase and the air dead band can increase.
In heat exchanger according to the present invention, preferably form in groups facing the wind louver(-vre) and the leeward louver(-vre) in groups each by a cutting and the part that improves wave-shaped fins.
Although the type according to heat exchanger of the present invention is not subjected to specific limited, for example described heat exchanger can be formed stacked heat exchanger, and wherein pipe and wave-shaped fins are alternately laminated.
In addition, heat exchanger according to the present invention is applicable to as the heat exchanger in the refrigeration system that is arranged on vehicle air conditioner.Especially, heat exchanger according to the present invention is applicable to as carrying out thermal-radiating heat exchanger.
In heat exchanger according to the present invention, the length of the string of the arc sections of the inclination angle of the length of the length of flat part and leeward flat part, neutral straight portion, facing the wind louver(-vre) and leeward louver(-vre) and formation wave-shaped fins turn fractions all is optimized owing to facing the wind, and therefore can greatly improve the heat exchanger effectiveness of heat exchanger.
Description of drawings
From following with reference to will be appreciated that other features and advantages of the present invention the detailed description of accompanying drawing to the preferred embodiment for the present invention, wherein:
Fig. 1 is the stereogram according to the heat exchanger of embodiment of the present invention.
Fig. 2 is arranged on the amplification view of the louver(-vre) part on the wave-shaped fins of heat exchanger shown in Figure 1.
Fig. 3 is the enlarged front view of the portion C of heat exchanger shown in Figure 1.
Fig. 4 is the curve map that concerns between the length A of expression heat flow and air flow resistance and facing the wind flat part and leeward flat part.
Fig. 5 is the curve map that concerns between the length B of expression heat flow and air flow resistance and neutral straight portion.
Fig. 6 is the curve map that concerns between expression heat flow and air flow resistance and the louver(-vre) inclination angle.
Fig. 7 is the curve map that concerns between the chord length of arc sections of expression heat flow and air flow resistance and formation wave-shaped fins turn fractions.
The specific embodiment
Hereinafter, with reference to the accompanying drawings the desirable embodiment according to heat exchanger of the present invention is described.
Fig. 1 represents the heat exchanger according to embodiment of the present invention.In the present embodiment, heat exchanger is formed stacked heat exchanger 1, wherein manage 4 and wave-shaped fins 5 alternately laminated.Heat exchanger 1 has a pair of collector 2 and 3, and a plurality of pipe 4 is arranged between collector 2 and 3.Wave-shaped fins 5 is arranged between the adjacent tubes 4, on the uppermost pipe 4 and under the nethermost pipe 4.Side plate 6 be separately positioned on the uppermost wave-shaped fins 5 and nethermost wave-shaped fins 5 under.Inlet tube 7 is arranged on the collector 3 and outlet 8 is arranged on another collector 2.In Fig. 1, the direction shown in the arrow D is an air-flow direction.
As shown in Figure 2, on wave-shaped fins 5 from the upstream side of air-flow direction D form flat part 11, the one group of louver(-vre) 12 that facings the wind that tilts with respect to air-flow direction D separately, neutral straight portion 13 down with the wind successively, each the is comfortable direction opposite with the incline direction of louver(-vre) 12 down with the wind tilt one group of leeward louver(-vre) 14 and leeward flat part 15.
Each facing the wind flat part 11 and leeward flat part 15 length A on air-flow direction D are set in the scope of 0.5mm-1.1mm, and are set in the present embodiment in the scope of 0.7mm-0.9mm.The length B of neutral straight portion 13 on air-flow direction D is set in the scope of 0.5mm-1.7mm, and is set in the present embodiment in the scope of 0.9mm-1.3mm.Each facing the wind louver(-vre) 12 and leeward louver(-vre) 14 are set in the scopes of 23 degree-26 degree with respect to the inclined angle alpha of air-flow direction D, and are set at 24 degree in the present embodiment.
In addition, as shown in Figure 3, the length of the string 5b of the arc sections of the turn fractions 5a of formation wave-shaped fins 5 is set at more than the 1.2mm.
Embodiment 1:
Determine heat flow (W/m
2) and each facing the wind flat part 11 and leeward flat part 15 between the length A on the air-flow direction D (mm) and the relation between air flow resistance (Pa) and the length A.The result is shown in Figure 4.The optimum range of length A is the big and air flow resistance small range of heat flow.Apparent from Fig. 4, the optimum range of length A is that 0.5mm is above below 1.1mm, and preferably 0.7mm is above below 0.9mm.
Embodiment 2:
Determine heat flow (W/m
2) and neutral straight portion 13 between the length B on the air-flow direction D (mm) and the relation between air flow resistance (Pa) and the length B.The result is shown in Figure 5.The optimum range of length B is the big and air flow resistance small range of heat flow.Apparent from Fig. 5, the optimum range of length B is that 0.5mm is above below 1.7mm, and preferably 0.9mm is above below 1.3mm.
Embodiment 3:
Determine heat flow (W/m
2) and each facing the wind louver(-vre) 12 and leeward louver(-vre) 14 with respect between the inclined angle alpha of air-flow direction D and the relation between air flow resistance (Pa) and the inclined angle alpha.The result is shown in Figure 6.The optimum range of inclined angle alpha is the big and air flow resistance small range of heat flow.Apparent from Fig. 6, the optimum range of inclined angle alpha is that 23 degree are above below 26 degree, and preferably 23.5 degree are above below 25 degree, and most preferably is that inclined angle alpha is 24 degree.
Embodiment 4:
Determine heat flow (W/m
2) and form between the length (mm) of string 5b of arc sections of turn fractions 5a of wave-shaped fins 5 and the relation between the length of air flow resistance (Pa) and string 5b.The result is shown in Figure 7.As shown in Figure 7, when the length of string 5b during less than 1.2mm, heat flow significantly reduces and air flow resistance increases according to conic section.Therefore, should be realized that the length of string 5b is preferably more than the 1.2mm.
The optimum range of each parameter all is verified by the above-mentioned test according to embodiment 1-4 like this, in the present invention.
Can be applied in according to the structure of heat exchanger of the present invention and to have on the heat exchanger of the wave-shaped fins of arranging a plurality of louver(-vre)s on the air-flow direction, especially, it is applicable to as the heat exchanger in the refrigeration system that is arranged on vehicle air conditioner.
Claims (5)
1. heat exchanger with wave-shaped fins, air-flow direction is furnished with a plurality of louver(-vre)s in described wave-shaped fins upper edge, it is characterized in that, one group of leeward louver(-vre) and leeward flat part that the direction opposite with the incline direction of the described louver(-vre) that facings the wind that upstream side from described air-flow direction on described wave-shaped fins forms the flat part that facings the wind, the one group of louver(-vre) that facings the wind that tilts with respect to described air-flow direction separately, neutral straight portion successively, each is comfortable tilts, and
(a) each length on described air-flow direction in described facing the wind flat part and the described leeward flat part is set in the scope of 0.5mm-1.1mm,
(b) length of described neutral straight portion on described air-flow direction is set in the scope of 0.5mm-1.7mm,
(c) each inclination angle with respect to described air-flow direction in described facing the wind louver(-vre) and the described leeward louver(-vre) is set in the scope of 23 degree-26 degree, and
(d) length of the string of the arc sections of the described wave-shaped fins turn fractions of formation is set at more than the 1.2mm.
2. heat exchanger as claimed in claim 1 is characterized in that, forms in described facing the wind louver(-vre) and described in groups the leeward louver(-vre) in groups each by a cutting and the part that improves described wave-shaped fins.
3. heat exchanger as claimed in claim 1 is characterized in that described heat exchanger is formed stacked heat exchanger, and wherein pipe and wave-shaped fins are alternately laminated.
4. heat exchanger as claimed in claim 1 is characterized in that, described heat exchanger is arranged on the heat exchanger in the refrigeration system of vehicle air conditioner.
5. heat exchanger as claimed in claim 1 is characterized in that, described heat exchanger is to be used for thermal-radiating heat exchanger.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006029893 | 2006-02-07 | ||
| JP2006029893A JP2007212009A (en) | 2006-02-07 | 2006-02-07 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101017068A true CN101017068A (en) | 2007-08-15 |
Family
ID=38291185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100052078A Pending CN101017068A (en) | 2006-02-07 | 2007-02-07 | Heat exchanger |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1832832A1 (en) |
| JP (1) | JP2007212009A (en) |
| CN (1) | CN101017068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300086A (en) * | 2017-08-23 | 2017-10-27 | 张子明 | A kind of equal flow tube of inner guide type and its application |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009021179A1 (en) * | 2009-05-13 | 2010-11-18 | Behr Gmbh & Co. Kg | Rib for a heat exchanger |
| CN101619950B (en) * | 2009-08-13 | 2011-05-04 | 三花丹佛斯（杭州）微通道换热器有限公司 | Fin and heat exchanger with same |
| JP5803768B2 (en) * | 2012-03-22 | 2015-11-04 | 株式会社デンソー | Heat exchanger fins and heat exchangers |
| CN105066037B (en) * | 2015-09-18 | 2018-07-03 | 江苏健享实业有限公司 | A kind of LED street lamp with cooling fin guiding mechanism |
| US20180120034A1 (en) * | 2016-11-01 | 2018-05-03 | Ingersoll-Rand Company | Bar and plate air-oil heat exchanger |
| JP2019219139A (en) * | 2018-06-22 | 2019-12-26 | 株式会社ティラド | Corrugated fin for heat exchanger |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107190A (en) * | 1982-12-10 | 1984-06-21 | Nippon Radiator Co Ltd | Heat exchanger |
| JPS6030990A (en) * | 1983-08-01 | 1985-02-16 | Hitachi Ltd | Method and device for driving foreign matter removing device |
| JPS6256786A (en) * | 1985-09-06 | 1987-03-12 | Hitachi Ltd | Heat exchanger |
| JPH02238297A (en) * | 1989-03-08 | 1990-09-20 | Nippondenso Co Ltd | Method of designing heat exchanger and evaluation method |
| JPH03204595A (en) * | 1989-12-28 | 1991-09-06 | Showa Alum Corp | Condenser |
| JP2949963B2 (en) * | 1991-10-18 | 1999-09-20 | 株式会社デンソー | Corrugated louver fin heat exchanger |
| JPH06241678A (en) * | 1993-02-19 | 1994-09-02 | Hitachi Ltd | Parallel flow heat exchanger for heat pump |
| JP2001349684A (en) * | 2000-06-05 | 2001-12-21 | Hino Motors Ltd | Radiator |
| DE20010994U1 (en) * | 2000-06-21 | 2000-08-31 | Behr Gmbh & Co | Network for a heat exchanger |
| JP2005037002A (en) * | 2003-07-16 | 2005-02-10 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| WO2005022064A1 (en) * | 2003-08-26 | 2005-03-10 | Valeo, Inc. | Aluminum heat exchanger and method of making thereof |
| JP2005140454A (en) * | 2003-11-10 | 2005-06-02 | Toyo Radiator Co Ltd | Heat exchanger |
-
2006
- 2006-02-07 JP JP2006029893A patent/JP2007212009A/en active Pending
-
2007
- 2007-01-23 EP EP07101010A patent/EP1832832A1/en not_active Withdrawn
- 2007-02-07 CN CNA2007100052078A patent/CN101017068A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300086A (en) * | 2017-08-23 | 2017-10-27 | 张子明 | A kind of equal flow tube of inner guide type and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007212009A (en) | 2007-08-23 |
| EP1832832A1 (en) | 2007-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |