CN115143831A - Double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger - Google Patents
Double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger Download PDFInfo
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- CN115143831A CN115143831A CN202210768820.XA CN202210768820A CN115143831A CN 115143831 A CN115143831 A CN 115143831A CN 202210768820 A CN202210768820 A CN 202210768820A CN 115143831 A CN115143831 A CN 115143831A
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- heat exchange
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- 230000017525 heat dissipation Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 27
- 210000001061 forehead Anatomy 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 24
- 238000013461 design Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary
Abstract
The invention discloses a double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger, which comprises an upper cover plate and a lower cover plate which are butted with each other; a heat exchange space is reserved between the upper cover plate and the lower cover plate; the upper cover plate is sequentially provided with a plurality of upper heat exchange fin groups and the lower cover plate is sequentially provided with a plurality of lower heat exchange fin groups; along the width direction of the heat exchange space, a plurality of heat exchange fins are sequentially arranged on each upper heat exchange fin group and each lower heat exchange fin group at intervals; along the vertical direction of the heat exchange space, each row of heat exchange fin group of the upper cover plate and each row of heat exchange fin group of the lower cover plate are staggered in turn; along heat transfer space length direction, the runner clearance between two adjacent heat transfer fins in the heat transfer fin group on every row and the forehead runner clearance between two adjacent heat transfer fins in the adjacent lower heat transfer fin group all stagger the setting each other. This scheme of adoption through the setting of staggering bidirectionally, artificially makes local turbulent state to improve heat transfer capacity.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger.
Background
In order to meet the urgent heat dissipation requirements of the current electronic equipment, the plate-fin heat exchanger is researched and applied more and more widely by virtue of the advantages of large heat exchange area per unit volume, higher efficiency and the like. At present, the reinforced heat exchange measures of the plate-fin heat exchanger mainly include the patent with the application number of CN03221546.0 and the name of corrugated finned tube by changing the shape of the cross section; by using rough surface fins, grooves, etc., as in the patent with application number CN201210407001.9, entitled pulse jet fin cooling device; an internal inserted spoiler element is adopted, as in CN201410389255.1, which is named a heat exchanger and a manufacturing method of the heat exchanger.
In recent years, more and more researchers have been working on the development of new compact heat exchangers, and in addition to increasing the heat transfer area to increase the compactness of the heat exchanger to improve the heat transfer efficiency, the research and development of some complex internal structures are gradually turning to.
Most current compact plate-fin heat exchangers, like three above-mentioned publications all design improvement based on straight fin, and fin direction is unanimous with the fluid flow direction in the plate-fin, and there is the runner too long, leads to the temperature difference of import and export very big, and the heat exchange efficiency of import department is high, and all the other places are inefficiency, has the inhomogeneous problem of runner fluid distribution simultaneously, leads to plate-fin heat exchanger's efficiency to have received the restriction.
Disclosure of Invention
The invention aims to provide a double-dislocation type plate-fin heat exchanger with high heat dissipation performance.
The invention is realized by the following technical scheme:
a double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger comprises an upper cover plate and a lower cover plate which are butted with each other;
a heat exchange space is reserved between the upper cover plate and the lower cover plate; the upper cover plate is positioned in the heat exchange space and is sequentially provided with a plurality of upper heat exchange fin groups and the lower cover plate is sequentially provided with a plurality of lower heat exchange fin groups along the length direction of the heat exchange space;
along the width direction of the heat exchange space, a plurality of heat exchange fins are sequentially arranged on each row of the upper heat exchange fin group and the lower heat exchange fin group at intervals;
along the vertical direction of the heat exchange space, each row of heat exchange fin group of the upper cover plate and each row of heat exchange fin group of the lower cover plate are staggered in turn at intervals;
along heat transfer space length direction, the runner clearance between two adjacent heat transfer fins in the heat transfer fin group on every row and the forehead runner clearance between two adjacent heat transfer fins in the adjacent lower heat transfer fin group all stagger the setting each other.
Compared with the prior art, for a longer plate-fin heat exchanger, the thermal performance of the rear end of the traditional plate-fin heat exchanger is greatly reduced, and mainly the problem that the heat exchange performance of the traditional plate-fin heat exchanger is greatly reduced due to the fact that a stable and thick boundary layer is formed by the flowing of fluid at the rear end of the traditional plate-fin heat exchanger, is solved; meanwhile, a plurality of heat exchange fins are arranged on the upper heat exchange fin group and the lower heat exchange fin group at intervals along the width direction, and in two adjacent heat exchange fin groups, the flow channel gaps at the heat exchange fins are staggered, so that the positions of the fins extending out of the upper cover plate and the lower cover plate are different in the vertical direction, and the upper cover plate and the lower cover plate are staggered in the vertical direction.
The above design aims at realizing that: through two-way dislocation breaking design, make stable boundary layer can not form, when the fluid through each breaking position, cracked phenomenon will appear in original boundary layer, the fluid contacts with the fin once more, thereby form new boundary layer, and make the thickness of boundary layer diminish, at this in-process, the heat transfer coefficient has been improved, and holistic heat transfer ability has been improved, and simultaneously, the fin between the upper and lower apron is mutual double-dislocation, has formed crisscross runner, can make the fluid flow more even, its heat exchange efficiency is higher.
Further optimizing, the width direction of the heat exchange fins is arranged along the direction vertical to the flow channel in the heat exchange space; for further shortening the length of the runner at every time, in the scheme, the width direction of each heat exchange fin is perpendicular to the direction of the runner in the heat exchange space, namely, the heat exchange fins are vertically arranged, and the width direction of the upper cover plate and the width direction of the lower cover plate are arranged.
Further optimizing, wherein each heat exchange fin is parallel to each other; so that the heat exchange at each flow passage is uniform.
Further optimizing, the horizontal height of the lower ends of the heat exchange fins in the upper heat exchange fin group is lower than the horizontal height of the upper ends of the heat exchange fins in the lower heat exchange fin group.
The lower ends of the heat exchange fins in the upper heat exchange fin group extend out of the upper cover plate; the upper ends of the heat exchange fins in the lower heat exchange fin group extend out of the lower cover plate; by increasing the length of the heat exchange fins, the heat exchange area of each heat exchange fin can be increased, and the heat exchange efficiency is improved.
Further optimizing, a flow channel gap is reserved between the lower end of the heat exchange fin in the upper heat exchange fin group and the lower cover plate; the upper ends of the heat exchange fins in the lower heat exchange fin group a flow passage gap is reserved between the upper cover plate and the lower cover plate; in order to reduce the pressure intensity, in the scheme, a runner gap is reserved between the heat exchange fin of the upper cover plate and the lower cover plate or the heat exchange fin is not directly contacted with the base of the lower cover plate, and the runner gap is reserved between the heat exchange fin of the lower cover plate and the upper cover plate or the heat exchange fin is not directly contacted with the base of the upper cover plate, so that the pressure intensity of the heat exchanger is ensured to be smaller.
Further optimization, an inlet and an outlet are respectively arranged at two ends of the heat exchange space in the length direction; in order to improve the heat exchange efficiency, in the scheme, the inlets and the outlets are respectively arranged at the two ends of the heat exchange space in the length direction, namely the two ends of the upper cover plate and the lower cover plate, so that the fluid passes through more runners and heat exchange fins as far as possible.
The cross section of the heat exchange space is rectangular, and the inlet and the outlet are respectively arranged at two diagonal positions; in order to maximize the heat exchange efficiency, in the scheme, the inlet and the outlet are respectively arranged at two diagonal positions, namely two ends of the longest diagonal inside, so that the fluid enters the most flow channels and the heat exchange fins.
Further preferably, the end part of the upper cover plate is connected with the end part of the lower cover plate in a welding mode.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention provides a double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger, which adopts the scheme that the plate-fin heat exchanger is designed into an upper cover plate form and a lower cover plate form, fins of the upper cover plate and fins of the lower cover plate are in a dislocation structure, and meanwhile, through holes on the fins are also in a dislocation design, so that the double-dislocation structure of the plate-fin heat exchanger is realized, a heat exchange boundary layer between fluid in a flow channel and a wall surface is damaged, a local turbulent flow state is artificially manufactured, and the heat exchange capacity is improved.
2. The invention provides a double-dislocation type plate-fin heat exchanger with high heat dissipation performance, by adopting the scheme, the direction of fins in the plate-fin heat exchanger is vertical to the flowing direction of fluid, so that the length of a flow channel is reduced, and the heat efficiency of the flow channel can be improved; the fins are designed in an interrupted manner, so that the distribution of fluid is more uniform, the utilization rate of the heat exchanger can be increased, the heat exchange capacity is greatly improved, and the temperature distribution of the heat exchanger is more uniform; breaking the design while reducing the overall pressure drop.
3. The invention provides a double-dislocation type plate-fin heat exchanger with high heat dissipation performance.
4. The invention provides a double-dislocation high-heat-dissipation-performance plate-fin heat exchanger.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort. In the drawings:
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a longitudinal section of an embodiment of the present invention;
FIG. 3 is a front view of an upper cover plate according to an embodiment of the present invention;
FIG. 4 is a top view of an upper plate according to an embodiment of the present invention;
FIG. 5 is a front view of a lower cover plate according to an embodiment of the present invention;
fig. 6 is a bottom view of a lower cover plate according to an embodiment of the present invention.
Reference numbers and corresponding part names in the drawings:
1-upper cover plate, 2-lower cover plate, 3-heat exchange fin, 4-inlet and 5-outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1 to 6, the present embodiment provides a double-offset plate-fin heat exchanger with high heat dissipation performance, which includes an upper cover plate 1 and a lower cover plate 2 that are butted;
a heat exchange space is reserved between the upper cover plate 1 and the lower cover plate 2; the upper cover plate 1 is sequentially provided with a plurality of upper heat exchange fin 3 groups and the lower cover plate 2 is sequentially provided with a plurality of lower heat exchange fin 3 groups;
along the width direction of the heat exchange space, a plurality of heat exchange fins 3 are sequentially arranged on each row of the upper heat exchange fin 3 group and the lower heat exchange fin 3 group at intervals;
along the vertical direction of the heat exchange space, each row of heat exchange fin 3 group of the upper cover plate 1 and each row of heat exchange fin 3 group of the lower cover plate 2 are sequentially arranged in a staggered manner at intervals;
along heat transfer space length direction, the runner clearance between 3 adjacent two heat transfer fins 3 in the heat transfer fin 3 group in every row and the forehead runner clearance between 3 adjacent two heat transfer fins in the adjacent 3 groups of lower heat transfer fin all stagger the setting each other.
Compared with the prior art, for a longer plate-fin heat exchanger, the thermal performance of the traditional plate-fin heat exchanger at the rear end of the traditional plate-fin heat exchanger is greatly reduced, and mainly the problem that the heat exchange performance of the traditional plate-fin heat exchanger is greatly reduced due to the fact that a stable and thick boundary layer is formed by the flowing of fluid at the rear end of the traditional plate-fin heat exchanger, is solved; meanwhile, a plurality of heat exchange fins 3 are arranged on the upper heat exchange fin 3 group and the lower heat exchange fin 3 group at intervals along the width direction, and in the two adjacent heat exchange fin 3 groups, the flow channel gaps at the heat exchange fins 3 are staggered with each other, so that in the vertical direction, the positions of the fins extending out of the upper cover plate 2 and the lower cover plate 2 are different, and the dislocation of the upper cover plate and the lower cover plate 2 in the vertical direction is realized.
The above design aims at realizing that: through two-way dislocation breaking design, make stable boundary layer can not form, when the fluid through each breaking position, cracked phenomenon will appear in original boundary layer, the fluid contacts with the fin once more, thereby form new boundary layer, and make the thickness of boundary layer diminish, at this in-process, the heat transfer coefficient has been improved, and holistic heat transfer ability has been improved, and simultaneously, the fin between upper and lower apron 2 is mutual double-dislocation, has formed crisscross runner, can make fluid flow more even, its heat exchange efficiency is higher.
Referring to fig. 2, as an embodiment for further shortening the length of each flow channel, the following steps are performed: the width direction of the heat exchange fins 3 is arranged along the direction vertical to the flow channels in the heat exchange space; in this scheme, every heat transfer fin 3's width direction, the runner direction in the equal perpendicular to heat transfer space, heat transfer fin 3 vertical setting promptly to along the width direction setting of upper and lower apron 2, when the fluid flowed into the heat exchanger internal flow way, through perpendicular setting, make the runner become shorter, thereby difficult stable boundary layer of formation has further improved heat exchange efficiency.
One embodiment for making heat exchange at each flow channel uniform is provided with: each of the heat exchange fins 3 is parallel to each other.
In this embodiment, the horizontal height of the lower end of the heat exchange fin 3 in the upper heat exchange fin 3 group is lower than the horizontal height of the upper end of the heat exchange fin 3 in the lower heat exchange fin 3 group.
With reference to fig. 2, in the above embodiment, a further scheme is as follows: the lower ends of the heat exchange fins 3 in the upper heat exchange fin 3 group extend out of the upper cover plate 1; the upper ends of the heat exchange fins 3 in the lower heat exchange fin 3 group extend out of the lower cover plate 2; by increasing the length of the heat exchange fins 3, the heat exchange area of each heat exchange fin 3 can be increased, and the heat exchange efficiency is improved.
In this embodiment, as a specific implementation manner of reducing the internal pressure of the heat exchanger, the following is set: a runner gap is reserved between the lower end of the heat exchange fin 3 in the upper heat exchange fin 3 group and the lower cover plate 2; a flow channel gap is reserved between the upper end of the heat exchange fin 3 in the lower heat exchange fin 3 group and the upper cover plate 1; in this scheme, make and leave the runner clearance between heat transfer fin 3 of upper cover plate 1 and the lower cover plate 2, or directly not contact with the basement of lower cover plate 2 to make and leave the runner clearance between heat transfer fin 3 of lower cover plate 2 and the upper cover plate 1, or directly not contact with the basement of upper cover plate 1, thereby can guarantee that the pressure of heat exchanger is less.
Referring to fig. 1, as an embodiment for improving the heat exchange efficiency, the following steps are performed: an inlet 4 and an outlet 5 are respectively arranged at two ends along the length direction of the heat exchange space; in the scheme, an inlet 4 and an outlet 5 are respectively arranged at two ends of the heat exchange space in the length direction, namely two ends of the upper cover plate and the lower cover plate 2, so that fluid can pass through more flow channels and heat exchange fins 3 as far as possible.
With continuing reference to fig. 1, as an embodiment for maximizing the heat exchange efficiency, the cross section of the heat exchange space is rectangular, and the inlet 4 and the outlet 5 are respectively disposed at two diagonal positions; in the scheme, the inlet 4 and the outlet 5 are respectively arranged at two diagonal positions, namely two ends of the longest diagonal inside, so that the fluid flows through the most flow channels and the heat exchange fins 3.
As a redundancy, the end of the upper cover plate 1 and the end of the lower cover plate 2 are connected by welding.
The working principle is as follows: the invention firstly adjusts the fin direction of the traditional plate-fin heat exchanger to be vertical to the flowing direction of the fluid, when the fluid flows into the flow channel of the heat exchanger, the flow channel of the fluid becomes shorter, and a stable boundary layer is not easy to form; meanwhile, the flow channel is interrupted, so that a stable boundary layer cannot be formed on the boundary layer, the original boundary layer can be broken, when the fluid flows through the interrupted position, the fluid contacts with the fins again, a new boundary layer can be regenerated, the thickness of the boundary layer is reduced, the heat exchange coefficient is improved in the process, and the integral heat exchange capacity is improved. Meanwhile, the fins between the upper plate and the lower plate are in double dislocation, so that staggered flow channels are formed, the fluid can flow more uniformly, and the heat exchange efficiency is higher.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger is characterized by comprising an upper cover plate (1) and a lower cover plate (2) which are butted;
a heat exchange space is reserved between the upper cover plate (1) and the lower cover plate (2); the upper cover plate (1) is sequentially provided with a plurality of upper heat exchange fin groups, and the lower cover plate (2) is sequentially provided with a plurality of lower heat exchange fin groups;
along the width direction of the heat exchange space, a plurality of heat exchange fins (3) are sequentially arranged on each row of the upper heat exchange fin group and the lower heat exchange fin group at intervals;
along the vertical direction of the heat exchange space, each row of heat exchange fin group of the upper cover plate (1) and each row of heat exchange fin group of the lower cover plate are staggered at intervals in turn;
along the length direction of the heat exchange space, the flow channel gap between two adjacent heat exchange fins (3) in each row of heat exchange fin group and the flow channel gap between two adjacent heat exchange fins (3) in the adjacent lower heat exchange fin group are staggered with each other.
2. The double offset plate-fin heat exchanger with high heat dissipation performance according to claim 1, wherein the width direction of the heat exchange fins (3) is arranged in a direction perpendicular to the flow channels in the heat exchange space.
3. The double-offset high heat dissipation performance plate-fin heat exchanger as recited in claim 1, wherein each of the heat exchange fins (3) is parallel to each other.
4. The double offset high heat dissipation performance plate-fin heat exchanger according to claim 1, wherein the level of the lower ends of the heat exchange fins (3) in the upper heat exchange fin group is lower than the level of the upper ends of the heat exchange fins (3) in the lower heat exchange fin group.
5. The double offset high heat dissipation performance plate-fin heat exchanger according to claim 4, wherein the lower ends of the heat exchange fins (3) in the upper heat exchange fin group extend out of the upper cover plate (1); the upper ends of the heat exchange fins (3) in the lower heat exchange fin group extend out of the lower cover plate (2).
6. The double offset plate-fin heat exchanger with high heat dissipation performance according to claim 1, wherein a flow channel gap is reserved between the lower ends of the heat exchange fins (3) in the upper heat exchange fin group and the lower cover plate (2).
7. The double offset plate-fin heat exchanger with high heat dissipation performance according to claim 1, wherein a flow channel gap is reserved between the upper ends of the heat exchange fins (3) in the lower heat exchange fin group and the upper cover plate (1).
8. The double-offset plate-fin heat exchanger with high heat dissipation performance according to claim 1, wherein an inlet (4) and an outlet (5) are respectively arranged at two ends of the heat exchange space in the length direction.
9. The double-offset plate-fin heat exchanger with high heat dissipation performance and high heat dissipation performance of claim 7, wherein the cross section of the heat exchange space is rectangular, and the inlet (4) and the outlet (5) are respectively arranged at two diagonal positions.
10. The double offset type high heat dissipation performance plate-fin heat exchanger is characterized in that the end of the upper cover plate (1) and the end of the lower cover plate (2) are connected by welding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210768820.XA CN115143831A (en) | 2022-07-01 | 2022-07-01 | Double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210768820.XA CN115143831A (en) | 2022-07-01 | 2022-07-01 | Double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger |
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| CN115143831A true CN115143831A (en) | 2022-10-04 |
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| CN202210768820.XA Pending CN115143831A (en) | 2022-07-01 | 2022-07-01 | Double-dislocation type high-heat-dissipation-performance plate-fin heat exchanger |
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| CN102230677A (en) * | 2011-06-22 | 2011-11-02 | 广东五星太阳能股份有限公司 | Flat solar air heat exchanger |
| CN104515422A (en) * | 2013-09-27 | 2015-04-15 | 杭州三花研究院有限公司 | Fin and heat exchanger with fin |
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| CN205243600U (en) * | 2015-12-25 | 2016-05-18 | 中国科学院上海硅酸盐研究所 | A heat exchanger for used heat thermoelectric power generation system |
| CN106465563A (en) * | 2014-05-23 | 2017-02-22 | 特斯拉汽车公司 | Heatsink with internal cavity for liquid cooling |
| CN110671961A (en) * | 2019-11-06 | 2020-01-10 | 江苏科技大学 | Multi-dimensional flow guide synergistic fin plate bundle based on additive manufacturing and heat exchanger thereof |
| CN215683061U (en) * | 2021-08-17 | 2022-01-28 | 珠海格莱克科技有限公司 | Enhanced heat dissipation device using array heat dissipation fins |
-
2022
- 2022-07-01 CN CN202210768820.XA patent/CN115143831A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010040025A1 (en) * | 1992-02-28 | 2001-11-15 | Milne Jurisich | Heat exchanger element |
| US20010001416A1 (en) * | 1998-12-15 | 2001-05-24 | Shun-Jung Lee | Heat sink and method for making the same |
| CN102230677A (en) * | 2011-06-22 | 2011-11-02 | 广东五星太阳能股份有限公司 | Flat solar air heat exchanger |
| CN104515422A (en) * | 2013-09-27 | 2015-04-15 | 杭州三花研究院有限公司 | Fin and heat exchanger with fin |
| CN106465563A (en) * | 2014-05-23 | 2017-02-22 | 特斯拉汽车公司 | Heatsink with internal cavity for liquid cooling |
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