CN103874395A - Radiator and frequency converter employing same - Google Patents
Radiator and frequency converter employing same Download PDFInfo
- Publication number
- CN103874395A CN103874395A CN201210549346.8A CN201210549346A CN103874395A CN 103874395 A CN103874395 A CN 103874395A CN 201210549346 A CN201210549346 A CN 201210549346A CN 103874395 A CN103874395 A CN 103874395A
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- radiator
- fin
- unsymmetric structure
- radiating
- bottom plate
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Abstract
The invention discloses a radiator (1), which comprises a radiating bottom plate (2) and cooling fins (3) which are hot connected to the radiating bottom plate (2), wherein the cooling fins (3) have asymmetrical structures. By the radiator, wind resistance can be effectively reduced, the temperature at the hottest point is reduced to make heat dissipation more uniform, and the radiating efficiency is improved; meanwhile, materials of the cooling fins are saved and the effective radiating area utilization rate is improved.
Description
Technical field
The present invention relates to a kind of radiator, more specifically, the present invention relates to a kind of radiator of unsymmetric structure, and a kind of frequency converter that adopts this radiator.
Background technology
In the radiator 100 of prior art as shown in Figure 1, conventionally adopt symmetrical expression fin 300, it is thermally connected on radiating bottom plate 200, for carrying out heat exchange with refrigerant.But, because fin 300 this symmetrical expression, that front and back length is the same can produce larger windage, therefore can cause the in the situation that of same Duct design, air quantity declines, cause in air inlet position temperature relatively low, and relatively high in air outlet position temperature, and make the Distribution of temperature rise on the base plate 20 of radiator 100 inhomogeneous; Specifically, from the fin 300 shown in Fig. 1, its temperature minimum point is positioned at fin 300 bottoms, inlet side, and temperature peak is positioned at fin 300 tops, air side.
This shows, the radiator 100 with the fin 300 of traditional symmetrical structure exists temperature distributing disproportionation even, the problem that radiating efficiency is lower; Meanwhile, the conduction of heat on the fin 300 of traditional structure is only near air intake place, and do not arrive the lower end of fin 300, thereby in fact causes the waste of fin 300 areas.
Therefore, on market, need the radiator that a kind of radiating efficiency is higher.
Summary of the invention
The problems referred to above can be solved by a kind of radiator provided by the present invention.This radiator comprises radiating bottom plate and the fin that is thermally connected to described radiating bottom plate, and described fin is unsymmetric structure.Asymmetrical by fin is arranged to, can make the air quantity in each air channel even, thereby realize the equilibrium of radiating effect.
Further, fin is arranged to unsymmetric structure at inlet side place.
Further preferably, in radiator, described unsymmetric structure is stairstepping.
Optionally, described unsymmetric structure is oblique line shape.
Preferably, the proportion of the length of described unsymmetric structure and fin length is 10%-100%.
Again preferably, the proportion of the width of described unsymmetric structure and fin width is 10% to 55%.
The present invention is the frequency converter of the radiator of claimed a kind of fin that comprises above-mentioned unsymmetric structure also.
Utilize radiator of the present invention, can effectively reduce windage, reduce hottest spot temperature and make heat radiation more even, radiating efficiency improve; Meanwhile, save fin material, improve efficiently radiates heat area utilization.
Brief description of the drawings
In order to describe in more detail the present invention, be described further below with reference to accompanying drawing and with reference to specific embodiment, wherein:
Fig. 1 is the stereogram of the radiator of prior art;
Fig. 2 is the stereogram of radiator according to an embodiment of the invention;
Fig. 3 is the stereogram of radiator according to another embodiment of the present invention;
Fig. 4 is the end view of radiator according to an embodiment of the invention; With
Fig. 5-7th, the radiating effect analogous diagram of the radiator of embodiment shown in Fig. 2, wherein Fig. 6 is the radiating effect analogous diagram of symmetrical structure radiator, and Fig. 7 is the radiating effect analogous diagram of unsymmetric structure radiator.
Reference numerals list:
100 prior art radiators; 200 prior art radiating bottom plates; 300 prior art fin
1 radiator; 2 radiating bottom plates; 3 fin
L2 unsymmetric structure length; L1 fin length
W1 unsymmetric structure width; W2 fin width
Embodiment
As shown in Figure 2, according to radiator 1 of the present invention, comprise radiating bottom plate 2 and the fin 3 that is thermally connected to described radiating bottom plate 2.Wherein, described radiating bottom plate 2 and the thermo-contact of power component (not shown), the heat that the latter is produced is delivered on fin 3.Fin 3 can be made into integration with radiating bottom plate 2, and both also can be fixed together by alternate manner certainly.In the present invention, described fin 3 is unsymmetric structures.; with respect to traditional symmetry, as the fin of rectangular shape (as shown in fig. 1); fin 3 of the present invention does not form symmetrical structure in inlet side and air side, but is arranged to unsymmetric structure according to air current flow direction, to form uniform and stable air-flow in air channel.
Specifically as shown in Figure 2, fin 3 (represents) to locate to be arranged to unsymmetric structure with solid arrow in figure in inlet side.Utilize the asymmetric of itself and air side (representing with dotted arrow in figure), make, between inlet side and air side, can form uniform and stable air channel.Especially for inlet side, because refrigerant and heat start to contact, need to have in a large number and fast air-flow pass through, be therefore chosen in inlet side above-mentioned unsymmetric structure be set.
In one embodiment of the invention, the unsymmetric structure of fin 3 is stairstepping.
As shown in Figure 3, in another embodiment of the present invention, the unsymmetric structure of fin 3 is oblique line shape.Be designed to oblique line shape, can make the fin 3 of unsymmetric structure be easier to processing and manufacturing.
Preferably, the length L 2 of unsymmetric structure is 10%-100% with the proportion of fin length L 1.In addition the proportion that, the width W 1 of described unsymmetric structure is fin W2 width can change to 55% from 10%.The radiator 1 of the unsymmetric structure within the scope of aforementioned proportion can be realized better radiating effect.
Its effect is as shown in Fig. 5-7; owing to adopting asymmetric shape heat radiating fin structure; sidewall area near inlet side place is little; and it is large near the sidewall area at air side place; make the rear portion of the fin 3 that is difficult for heat radiation obtain better radiating effect, the Distribution of temperature rise of radiator 1 and protected object is more even.
In addition, the resistance force diminishes producing due to the dissymmetrical structure of fin 3, the corresponding minimizing of differential static pressure, in the situation that Duct design and heating power are certain equally, in unit interval, wind speed increases, and takes away also corresponding increasing of heat, and the temperature of heating module reduces, thermal resistance reduces, thereby the radiating efficiency of radiator 1 increases.Meanwhile, this structure has been saved the material of fin 3.
The present invention also comprises a kind of frequency converter of the radiator 1 that adopts above-mentioned fin 3.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction.Although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned disclosure to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. a radiator (1), comprises radiating bottom plate (2) and is thermally connected to the fin (3) of described radiating bottom plate (2), it is characterized in that, described fin (3) has unsymmetric structure.
2. radiator as claimed in claim 1 (1), is characterized in that, described fin (3) is arranged to unsymmetric structure at air inlet place.
3. radiator as claimed in claim 2 (1), is characterized in that, described unsymmetric structure is stairstepping.
4. radiator as claimed in claim 2 (1), is characterized in that, described unsymmetric structure is oblique line shape.
5. radiator as claimed in claim 2 (1), is characterized in that, the length (L2) of described unsymmetric structure is 10%-100% with the scope of the length ratio (L2/L1) of fin length (L1).
6. radiator as claimed in claim 2 (1), is characterized in that, the width (W1) of described unsymmetric structure is 10% to 55% with width ratio (W1/W2) scope of fin (W2) width.
7. one kind comprises the frequency converter of radiator as claimed in claim 1 (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210549346.8A CN103874395A (en) | 2012-12-17 | 2012-12-17 | Radiator and frequency converter employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210549346.8A CN103874395A (en) | 2012-12-17 | 2012-12-17 | Radiator and frequency converter employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103874395A true CN103874395A (en) | 2014-06-18 |
Family
ID=50912404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210549346.8A Pending CN103874395A (en) | 2012-12-17 | 2012-12-17 | Radiator and frequency converter employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103874395A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107438349A (en) * | 2017-07-07 | 2017-12-05 | 西安交通大学 | A kind of natural heat dissipation device using stack effect |
| CN108550561A (en) * | 2018-05-31 | 2018-09-18 | 特变电工西安电气科技有限公司 | A kind of electrical device radiator |
| CN108566760A (en) * | 2018-01-16 | 2018-09-21 | 东莞市远鑫电子科技有限公司 | Irregular radiator and its production technology |
| JP2018184020A (en) * | 2017-04-24 | 2018-11-22 | 富士電機株式会社 | Electric power conversion device for railway vehicle |
| CN110799021A (en) * | 2019-11-15 | 2020-02-14 | 阳光电源股份有限公司 | Heat dissipation device and converter |
| CN112698541A (en) * | 2019-10-22 | 2021-04-23 | 中强光电股份有限公司 | Heat dissipation module and projection device using same |
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| US6384733B1 (en) * | 2001-02-15 | 2002-05-07 | Matthias Seesemann | Temperature monitoring apparatus for microprocessor cooling devices |
| US20020185259A1 (en) * | 2001-05-15 | 2002-12-12 | Gateway, Inc. | Angle mounted fan-sink |
| CN2632851Y (en) * | 2003-05-15 | 2004-08-11 | 莫列斯公司 | Radiator |
| CN2817316Y (en) * | 2005-07-11 | 2006-09-13 | 佛山市顺德区汉达精密电子科技有限公司 | Radiating fin |
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| CN101111141A (en) * | 2006-07-21 | 2008-01-23 | 鸿富锦精密工业（深圳）有限公司 | Heat radiator |
| CN201628915U (en) * | 2010-03-02 | 2010-11-10 | 联想(北京)有限公司 | Heat radiator, heat-radiating system including heat radiator and computer |
| CN102436295A (en) * | 2010-09-29 | 2012-05-02 | 研祥智能科技股份有限公司 | Heat tube heat radiator |
| CN203243651U (en) * | 2012-12-17 | 2013-10-16 | 西门子（上海）电气传动设备有限公司 | Radiator and frequency converter adopting the radiator |
-
2012
- 2012-12-17 CN CN201210549346.8A patent/CN103874395A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07249885A (en) * | 1994-03-10 | 1995-09-26 | Nemitsuku Ramuda Kk | Cooling structure |
| CN1335644A (en) * | 2000-07-20 | 2002-02-13 | 宏碁电脑股份有限公司 | Heat radiator |
| US6384733B1 (en) * | 2001-02-15 | 2002-05-07 | Matthias Seesemann | Temperature monitoring apparatus for microprocessor cooling devices |
| US20020185259A1 (en) * | 2001-05-15 | 2002-12-12 | Gateway, Inc. | Angle mounted fan-sink |
| CN2632851Y (en) * | 2003-05-15 | 2004-08-11 | 莫列斯公司 | Radiator |
| CN2817316Y (en) * | 2005-07-11 | 2006-09-13 | 佛山市顺德区汉达精密电子科技有限公司 | Radiating fin |
| CN1913761A (en) * | 2005-08-12 | 2007-02-14 | 富准精密工业(深圳)有限公司 | Radiation device |
| CN101111141A (en) * | 2006-07-21 | 2008-01-23 | 鸿富锦精密工业（深圳）有限公司 | Heat radiator |
| CN201628915U (en) * | 2010-03-02 | 2010-11-10 | 联想(北京)有限公司 | Heat radiator, heat-radiating system including heat radiator and computer |
| CN102436295A (en) * | 2010-09-29 | 2012-05-02 | 研祥智能科技股份有限公司 | Heat tube heat radiator |
| CN203243651U (en) * | 2012-12-17 | 2013-10-16 | 西门子（上海）电气传动设备有限公司 | Radiator and frequency converter adopting the radiator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018184020A (en) * | 2017-04-24 | 2018-11-22 | 富士電機株式会社 | Electric power conversion device for railway vehicle |
| CN107438349A (en) * | 2017-07-07 | 2017-12-05 | 西安交通大学 | A kind of natural heat dissipation device using stack effect |
| CN107438349B (en) * | 2017-07-07 | 2020-01-14 | 西安交通大学 | Natural heat dissipation device utilizing chimney effect |
| CN108566760A (en) * | 2018-01-16 | 2018-09-21 | 东莞市远鑫电子科技有限公司 | Irregular radiator and its production technology |
| CN108550561A (en) * | 2018-05-31 | 2018-09-18 | 特变电工西安电气科技有限公司 | A kind of electrical device radiator |
| CN112698541A (en) * | 2019-10-22 | 2021-04-23 | 中强光电股份有限公司 | Heat dissipation module and projection device using same |
| US11506961B2 (en) | 2019-10-22 | 2022-11-22 | Coretronic Corporation | Heat dissipation module and projection apparatus using the same |
| CN110799021A (en) * | 2019-11-15 | 2020-02-14 | 阳光电源股份有限公司 | Heat dissipation device and converter |
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Application publication date: 20140618 |
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| RJ01 | Rejection of invention patent application after publication |