CN202452775U - Flat-panel water-cooling heat radiation device - Google Patents
Flat-panel water-cooling heat radiation device Download PDFInfo
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- CN202452775U CN202452775U CN2011205519952U CN201120551995U CN202452775U CN 202452775 U CN202452775 U CN 202452775U CN 2011205519952 U CN2011205519952 U CN 2011205519952U CN 201120551995 U CN201120551995 U CN 201120551995U CN 202452775 U CN202452775 U CN 202452775U
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Abstract
The utility model discloses a flat-panel water-cooling heat radiation device, which comprises an upper cooling plate and a lower cooling plate, wherein the top of the upper cooling plate and/or the bottom of the lower cooling plate contact/contacts a heating device; a plurality of downwards protruded platforms are formed at the bottom of the upper cooling plate; a plurality of upwards protruded platforms are formed on the top of the lower cooling plate; the lower bosses at the bottom of the upper cooling plate and the upper bosses on the top of the lower cooling plate are staggered from one another; a flow channel is formed between the bottom of the upper cooling plate and the top of the lower cooling plate; and cooling liquid flows in the flow channel and takes away heat of the upper cooling plate and the lower cooling plate. By the flat-panel water-cooling heat radiation device, the manufacturing cost and the manufacturing difficulty can be reduced; and the heat radiation performance is improved.
Description
Technical field
The utility model relates to a kind of device that utilizes cooling fluid (for example water) to dispel the heat.
Background technology
See also Fig. 1 a, this is a kind of longitudinal cross-section sketch map of existing dull and stereotyped water-cooling heat radiating device.Fig. 1 b be among Fig. 1 a A-A to cutaway view, transverse sectional view that promptly should the flat board water-cooling heat radiating device.This water-cooling heat radiating device 10 comprises cold drawing 11 and following cold drawing 12, is preferably metal material, and the left and right sides sealing in Fig. 1 combines last cold drawing 11 with following cold drawing 12.The bottom surface 12b of the end face 11a of last cold drawing 11, following cold drawing 12 is flat board, is used for the contact heating device.On the 11b of the bottom surface of last cold drawing 11, have a plurality of platforms 110, and the end face 12a of cold drawing 12 is dull and stereotyped down, is formed with cavity between the two and is called runner 20 to lower convexity.Cooling fluid flows in this runner 20, thereby takes away the heat of cold drawing 11 and following cold drawing 12.
Above-mentioned dull and stereotyped water-cooling heat radiating device can be placed heater members one-sided or bilateral (promptly going up cold drawing end face 11a and/or following 12b place, cold drawing bottom surface), has for example just obtained concrete application in the new-energy automobile field.In the new-energy automobile, the caloric value of inverter of controller (Inverter) and DC-to-dc (DC/DC) modular converter is big, is usually placed in the both sides of above-mentioned dull and stereotyped water-cooling heat radiating device 10, and its heat is dispersed into cold drawing 11 and/or following cold drawing 12.The lower cooling fluid of temperature gets into from the runner inlet, and with last cold drawing 11, cold drawing 12 carries out heat exchange down, absorbs heat, temperature raises runner 20 in, and the cooling fluid behind the absorption heat flows out from runner exit.So circulation realizes the cooling of controller.Above-mentioned dull and stereotyped water-cooling heat radiating device can also be used for the heat radiation of battery pack (Cell) module of new-energy automobile.
In the above-mentioned dull and stereotyped water-cooling heat radiating device 10, last cold drawing bottom surface lower convex platform 110 can be column or platform shape.Column is preferably cylinder, oval cylinder etc.; The platform shape is preferably round platform, elliptical table etc.; Its smooth sidewall helps reducing the resistance of coolant flow.The lower convex platform 110 of column adopts extrusion processes to accomplish usually, because last cold drawing 11, cold drawing 12 general low prices and heat conduction aluminum alloy materials preferably that adopt down, bigger to the difficulty of its extruding, the technology cost is expensive.The lower convex platform 110 of platform shape adopts extrusion process to make usually, and cost is lower, thereby uses more extensive.But have certain angle of inclination (non-perpendicular) between the sidewall of the lower convex platform 110 of platform shape and the last cold drawing bottom surface 11b, its inclined degree is big more, and the area of passage of runner 20 is just big more.
See also Fig. 1 a, experiment finds, above-mentioned dull and stereotyped water-cooling heat radiating device 10 in the process that reality is used, cooling fluid can be from last cold drawing bottom surface the end 110b of lower convex platform 110 flow through, and its root 110a that flows through hardly, this has just influenced its heat dispersion.
In order to improve the heat dispersion of above-mentioned dull and stereotyped water-cooling heat radiating device 10, a kind of way is to increase the distribution density of lower convex platform 110 on last cold drawing bottom surface 11b, but this has proposed higher challenge to manufacturing process.How under the prerequisite that does not increase manufacturing cost, to improve its heat dispersion; Or under the prerequisite that guarantees same heat-sinking capability, reduce its manufacturing cost, just become an important topic that dull and stereotyped water-cooling heat radiating device needed to be resolved hurrily.
The utility model content
The utility model technical problem to be solved provides a kind of dull and stereotyped water-cooling heat radiating device that better radiating effect and manufacturing process do not become complicated thereupon that has.
For solving the problems of the technologies described above, the dull and stereotyped water-cooling heat radiating device of the utility model comprises cold drawing and following cold drawing, the bottom surface contact heating device of the end face of last cold drawing and/or following cold drawing; On the bottom surface of last cold drawing, have a plurality of platforms to lower convexity, on the end face of following cold drawing, have a plurality of platforms that raise up, last cold drawing bottom surface lower convex platform is interlaced with following cold drawing end face convex platform; Between last cold drawing bottom surface and following cold drawing end face, be formed with runner, cooling fluid flows in this runner, thereby takes away the heat of cold drawing and following cold drawing.
The dull and stereotyped water-cooling heat radiating device of the utility model can reduce manufacturing cost and manufacture difficulty under the prerequisite that does not reduce the integral heat sink ability; For example can reduce the distribution density that goes up cold drawing bottom surface lower convex platform; So just, reduced manufacturing cost and manufacture difficulty, but the following cold drawing end face convex platform that is increased has remedied the loss of heat-sinking capability.The dull and stereotyped water-cooling heat radiating device of the utility model can also increase the integral heat sink ability under the prerequisite of keeping manufacturing cost and manufacture difficulty; This mainly is because the longitudinal cross-section shape that the following cold drawing end face convex platform that is increased can be used to regulate runner; Impel cooling fluid to flow through, thereby strengthen heat dispersion to the big surface of caloric value, zone.
Description of drawings
Fig. 1 a is the longitudinal cross-section sketch map of existing dull and stereotyped water-cooling heat radiating device;
Fig. 1 b be the A-A of Fig. 1 a to cutaway view, i.e. the transverse sectional view of existing dull and stereotyped water-cooling heat radiating device;
Fig. 2 a is the longitudinal cross-section sketch map of first embodiment of the dull and stereotyped water-cooling heat radiating device of the utility model;
Fig. 2 b be the A-A of Fig. 2 a to cutaway view one, i.e. the transverse sectional view one of the dull and stereotyped water-cooling heat radiating device of the utility model;
Fig. 2 c be the A-A of Fig. 2 a to cutaway view two, i.e. the transverse sectional view two of the dull and stereotyped water-cooling heat radiating device of the utility model;
Fig. 3 is the longitudinal cross-section sketch map of second embodiment of the dull and stereotyped water-cooling heat radiating device of the utility model;
Fig. 4 is the longitudinal cross-section sketch map of the 3rd embodiment of the dull and stereotyped water-cooling heat radiating device of the utility model.
Description of reference numerals among the figure:
10 is existing dull and stereotyped water-cooling heat radiating device; 11 is last cold drawing; 11a is last cold drawing end face; 11b is last cold drawing bottom surface; 110 is last cold drawing lower convex platform; 110a is last cold drawing lower convex platform root; 110b is last cold drawing lower convex platform end; 12 are following cold drawing; 20 is runner; 30 is the dull and stereotyped water-cooling heat radiating device of the utility model.
The specific embodiment
See also Fig. 2 a, this is the longitudinal cross-section sketch map of a kind of embodiment of the dull and stereotyped water-cooling heat radiating device of the utility model.This water-cooling heat radiating device 30 comprises cold drawing 11 and following cold drawing 12, is preferably metal material, and the left and right sides sealing in Fig. 1 combines last cold drawing 11 with following cold drawing 12.The bottom surface 12b of the end face 11a of last cold drawing 11, following cold drawing 12 is flat board, is used for the contact heating device.On the 11b of the bottom surface of last cold drawing 11, have a plurality of platforms 110, on the end face 12a of following cold drawing 12, have a plurality of platforms that raise up 120 to lower convexity.Last cold drawing bottom surface lower convex platform 110 is interlaced with following cold drawing end face convex platform 120.Between last cold drawing bottom surface 11b and following cold drawing end face 12a, be formed with cavity and be called runner 20.Cooling fluid flows in this runner 20, thereby takes away the heat of cold drawing 11 and following cold drawing 12.
Replacedly, the bottom surface 12b of the end face 11a of last cold drawing 11, following cold drawing 12 also can not be dull and stereotyped, but carries out adaptive design according to the shape of heater members.
Replacedly; Position, seal junction between last cold drawing 11 and the following cold drawing 12 is not limited to both sides, and can be provided with arbitrarily, as long as between last cold drawing 11 and following cold drawing 12, form a runner 20; This runner 20 has the entrance and exit of cooling fluid, and all the other positions are sealing and combine to get final product.
Compare with existing dull and stereotyped water-cooling heat radiating device 10; In the dull and stereotyped water-cooling heat radiating device 30 of the utility model shown in Fig. 2 a; Owing to have convex platform 120 on the following cold drawing end face 12a, thereby force cooling fluid to be flowed through near 11b place, last cold drawing bottom surface (promptly going up the root 110a side of cold drawing bottom surface lower convex platform 110).According to the heating analog simulation, when last cold drawing end face 11a contact heating device, the temperature of the root 110a of last cold drawing bottom surface lower convex platform 110 will be higher than the temperature of end 110b, and the utility model can be obtained better cooling heat dissipation effect like this.
See also Fig. 2 b, this be among Fig. 2 a A-A to a kind of cutaway view, a kind of transverse sectional view that promptly should flat board water-cooling heat radiating device 30.Wherein, last cold drawing bottom surface lower convex platform 110 is square arrangement, per four be square arrangement on the center position of cold drawing bottom surface lower convex platform 110 a following cold drawing end face convex platform 120 is set.This staggered pattern of going up cold drawing bottom surface lower convex platform 110 and following cold drawing end face convex platform 120 is called in-line arrangement.Obviously, at per four center positions that are the following cold drawing end face convex platform 120 of square arrangement cold drawing bottom surface lower convex platform 110 on being set, also is feasible.
See also Fig. 2 c, this be among Fig. 2 a A-A to another kind of cutaway view, another kind of transverse sectional view that promptly should flat board water-cooling heat radiating device 30.Wherein, last cold drawing bottom surface lower convex platform 110 is equilateral triangle to be arranged, per three be that equilateral triangle arranges on the center position of cold drawing bottom surface lower convex platform 110 a following cold drawing end face convex platform 120 is set.This staggered pattern of going up cold drawing bottom surface lower convex platform 110 and following cold drawing end face convex platform 120 is called fork row.Obviously, at per three center positions that are the following cold drawing end face convex platform 120 of equilateral triangle arrangement cold drawing bottom surface lower convex platform 110 on being set, also is feasible.
Above-mentioned two kinds of last cold drawing bottom surface lower convex platforms 110 are merely signal with following cold drawing end face convex platform 120 interlaced arrangement modes, can adopt other arrangement modes arbitrarily.
Preferably, all gapped between cold drawing bottom surface lower convex platform 110 and the following cold drawing end face convex platform 120 around it on each, in other words, all gapped between cold drawing end face convex platform 120 and the last cold drawing bottom surface lower convex platform 110 around it under each.Following like this three zones form a complete runner 20: go up the side clearance of the side of cold drawing bottom surface lower convex platform 110 and following cold drawing end face convex platform 120, the gap of going up cold drawing bottom surface lower convex platform 110 and the gap of following cold drawing end face 12a, following cold drawing end face convex platform 120 and last cold drawing bottom surface 11b.Cooling fluid can flow freely and regulate in this runner 20.
When between the following cold drawing end face convex platform 120 around last cold drawing bottom surface lower convex platform 110 and its when very close to each other; Runner 20 just has been divided into independently two, promptly goes up the gap of the gap of cold drawing bottom surface lower convex platform 110 and following cold drawing end face 12a, following cold drawing end face convex platform 120 and last cold drawing bottom surface 11b.Cooling fluid still can independently flow in two runners 20 at this but can't regulate.
Preferably, the end face of cold drawing bottom surface lower convex platform 110 all is lower than each end face of cold drawing end face convex platform 120 down on each, and in other words, the end face of cold drawing end face convex platform 120 all is higher than the end face of cold drawing bottom surface lower convex platform 110 under each.Could cooling fluid be risen near 11b place, last cold drawing bottom surface like this, promote heat dispersion last cold drawing 11.
When the end face of last cold drawing bottom surface lower convex platform 110 is equal to or higher than down the end face of cold drawing end face convex platform 120; For flat down cold drawing end face 12a, still have the lifting cooling fluid and make its effect near last cold drawing bottom surface 11b, so obvious when being lower than the end face of cold drawing end face convex platform 120 but effect does not go up the end face of cold drawing bottom surface lower convex platform 110.
In the dull and stereotyped water-cooling heat radiating device 30 shown in Fig. 2 a, the gap between the end face of last cold drawing bottom surface lower convex platform 110 and the following cold drawing end face 12a is very little, and the gap between the end face of following cold drawing end face convex platform 120 and the last cold drawing bottom surface 11b is bigger.Thereby behind the little gap between the end face of cooling fluid cold drawing bottom surface lower convex platform 110 on filling with and the following cold drawing end face 12a; Can compelled rise to down between end face and the last cold drawing bottom surface 11b of cold drawing end face convex platform 120 mobilely, be applicable to the situation of the heater members that cold drawing end face 11a contact heating amount is big.Likewise; If the known big heater members of cold drawing bottom surface 12b contact heating amount down; Can make the end face and the gap between the following cold drawing end face 12a of cold drawing bottom surface lower convex platform 110 become big; And the down end face of cold drawing end face convex platform 120 and the gap smaller between the last cold drawing bottom surface 11b make the cooling fluid cold drawing end face 12a that flows through down more, thereby help the heat radiation of time cold drawing 12.
Fig. 3 has provided another embodiment of the dull and stereotyped water-cooling heat radiating device of the utility model; Gap on it between end face of cold drawing bottom surface lower convex platform 110 and the following cold drawing end face 12a is bigger; Gap between the end face of following cold drawing end face convex platform 120 and the last cold drawing bottom surface 11b is also bigger, and for example two gaps are roughly the same height.Therefore the part of cooling fluid can be mobile in the end face of last cold drawing bottom surface lower convex platform 110 and the big gap between the following cold drawing end face 12a; Another part of cooling fluid can flow in end face that descends cold drawing end face convex platform 120 and the big gap between the last cold drawing bottom surface 11b, is applicable to the situation of the heater members that cold drawing end face 11a and following cold drawing bottom surface 12b while contact heating amount are big.
In Fig. 2 a and dull and stereotyped water-cooling heat radiating device 30 shown in Figure 3; Cold drawing bottom surface lower convex platform 110 is a sustained height on all; Cold drawing end face convex platform 120 also is a sustained height under all, and this heater members that is applicable to cold drawing end face 11a and/or cold drawing bottom surface 12b contact down is in the comparatively balanced situation of each regional heating.
Fig. 4 has provided another embodiment of the dull and stereotyped water-cooling heat radiating device of the utility model, wherein between the height of following cold drawing end face convex platform 120 in zone less than the height of the following cold drawing end face convex platform 120 of neighboring area.Cooling fluid can be flowed through between the following cold drawing end face convex platform 120 and last cold drawing bottom surface 11b of zone line more like this, thereby helps the heat radiation of the zone line of cold drawing 11 more.This is applicable to that heater members that cold drawing end face 11a contacted is in the caloric value of the zone line situation greater than the caloric value of neighboring area.Likewise, if some zone of known heater members has bigger caloric value, can be at contacted cold drawing zone adjustment boss height with it, make cooling fluid this zone of flowing through more, to be beneficial to the part heat radiation in this zone more.
In the dull and stereotyped water-cooling heat radiating device 30 of the utility model, last cold drawing bottom surface lower convex platform 110, following cold drawing end face convex platform 120 can be column or platform shape, are preferably columns such as the cylinder with smooth side wall, oval cylinder, shown in Fig. 2 a; Or the platform shape such as round platform, elliptical table with smooth side wall, like Fig. 3, shown in Figure 4; Resistance when its smooth sidewall helps reducing coolant flow.This boss structure is also referred to as pin fin, and whole dull and stereotyped water-cooling heat radiating device is also referred to as needle-like wing plate water-cooling heat radiating device.
In sum, the dull and stereotyped water-cooling heat radiating device of the utility model is provided with lower convex platform on last cold drawing bottom surface, on the cold drawing end face convex platform is being set down, and the said cold drawing bottom surface lower convex platform of going up is staggered with following cold drawing end face convex platform.Cooling fluid in last cold drawing bottom surface lower convex platform and side clearance following cold drawing end face convex platform, in the gap of cold drawing bottom surface lower convex platform and following cold drawing end face, mobile in the gap of cold drawing end face convex platform and last cold drawing bottom surface down.To the situation of the big heater members of last cold drawing contact heating amount, the gap of cold drawing end face convex platform and last cold drawing bottom surface under increasing, the gap that reduces to go up cold drawing bottom surface lower convex platform and following cold drawing end face is flowed through cooling fluid more and is gone up the cold drawing bottom surface.To the situation of the heater members that down cold drawing contact heating amount is big, the gap of cold drawing bottom surface lower convex platform and following cold drawing end face increases in reduces the gap of following cold drawing end face convex platform and last cold drawing bottom surface, and the cooling fluid cold drawing of flowing through is down more pushed up.Situation to the big heater members of last cold drawing and the equal contact heating amount of following cold drawing; Increase the gap of following cold drawing end face convex platform and last cold drawing bottom surface, the gap of going up cold drawing bottom surface lower convex platform and following cold drawing end face simultaneously; The part of cooling fluid is flowed through go up cold drawing bottom surface, another part of cooling fluid the cold drawing end face of flowing through down.The bigger situation of some regional caloric value to last cold drawing and/or following cold drawing; The cold drawing bottom surface lower convex platform and/or the height of cold drawing end face convex platform down in this zone, regulating, make cooling fluid flow through more this zone last cold drawing bottom surface and/or descend the cold drawing end face.
More than be merely the preferred embodiment of the utility model, and be not used in qualification the utility model.For a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. a dull and stereotyped water-cooling heat radiating device comprises cold drawing and following cold drawing, the bottom surface contact heating device of the end face of last cold drawing and/or following cold drawing; It is characterized in that on the bottom surface of last cold drawing, having a plurality of platforms to lower convexity, on the end face of following cold drawing, have a plurality of platforms that raise up, last cold drawing bottom surface lower convex platform is interlaced with following cold drawing end face convex platform; Between last cold drawing bottom surface and following cold drawing end face, be formed with runner, cooling fluid flows in this runner, thereby takes away the heat of cold drawing and following cold drawing.
2. dull and stereotyped water-cooling heat radiating device according to claim 1 is characterized in that, all has the gap between adjacent last cold drawing bottom surface lower convex platform and the following cold drawing end face convex platform.
3. dull and stereotyped water-cooling heat radiating device according to claim 1; It is characterized in that; When the caloric value of the heater members of last cold drawing end face contact greater than the caloric value of the heater members of cold drawing bottom surface contact down, then descend distance between cold drawing end face convex platform and the last cold drawing bottom surface greater than the distance of last cold drawing bottom surface lower convex platform and following cold drawing end face;
The caloric value of the heater members of cold drawing bottom surface contact instantly is greater than the caloric value of the heater members of last cold drawing end face contact, and the distance that then goes up cold drawing bottom surface lower convex platform and following cold drawing end face is greater than the distance between following cold drawing end face convex platform and the last cold drawing bottom surface;
When the caloric value of the heater members of last cold drawing end face contact equals the caloric value of the heater members of cold drawing bottom surface contact down, then descend distance between cold drawing end face convex platform and the last cold drawing bottom surface to equal the distance of cold drawing bottom surface lower convex platform and following cold drawing end face.
4. dull and stereotyped water-cooling heat radiating device according to claim 1; It is characterized in that; When the heater members of last cold drawing end face contact in certain regional caloric value greater than all the other regional caloric values, then in this zone down the distance between cold drawing end face convex platform and the last cold drawing bottom surface greater than the distance between cold drawing end face convex platform under in other zones and the last cold drawing bottom surface;
The heater members of cold drawing end face contact instantly in certain regional caloric value greater than all the other regional caloric values, then in this zone on distance between cold drawing bottom surface lower convex platform and the following cold drawing end face greater than the distance between cold drawing bottom surface lower convex platform in other zones and the following cold drawing end face.
5. dull and stereotyped water-cooling heat radiating device according to claim 1; It is characterized in that; Said going up between the lower convex platform of cold drawing bottom surface is square arrangement, and the center between per four last cold drawing bottom surface lower convex platforms that are square arrangement has a following cold drawing end face convex platform;
Perhaps, be square arrangement between the said down cold drawing end face convex platform, the center between per four following cold drawing end face convex platforms that are square arrangement has one and goes up cold drawing bottom surface lower convex platform.
6. dull and stereotyped water-cooling heat radiating device according to claim 1; It is characterized in that; Said go up is equilateral triangle and arranges between the lower convex platform of cold drawing bottom surface, per four centers that are between the last cold drawing bottom surface lower convex platform that equilateral triangle arranges have a following cold drawing end face convex platform;
Perhaps, be equilateral triangle between the said down cold drawing end face convex platform and arrange, per four centers that are between the following cold drawing end face convex platform that equilateral triangle arranges have one and go up cold drawing bottom surface lower convex platform.
7. dull and stereotyped water-cooling heat radiating device according to claim 1 is characterized in that, the end face of cold drawing bottom surface lower convex platform all is lower than the end face of cold drawing end face convex platform down on each.
8. dull and stereotyped water-cooling heat radiating device according to claim 1 is characterized in that, last cold drawing bottom surface lower convex platform is column or the platform shape with smooth side wall with following cold drawing end face convex platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205519952U CN202452775U (en) | 2011-12-26 | 2011-12-26 | Flat-panel water-cooling heat radiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205519952U CN202452775U (en) | 2011-12-26 | 2011-12-26 | Flat-panel water-cooling heat radiation device |
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| Publication Number | Publication Date |
|---|---|
| CN202452775U true CN202452775U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205519952U Expired - Lifetime CN202452775U (en) | 2011-12-26 | 2011-12-26 | Flat-panel water-cooling heat radiation device |
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| Country | Link |
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| CN (1) | CN202452775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563998A (en) * | 2011-12-26 | 2012-07-11 | 联合汽车电子有限公司 | Flat water-cooling heat radiation device |
| EP3146818A4 (en) * | 2014-05-23 | 2018-01-24 | Tesla Motors Inc. | Heatsink with internal cavity for liquid cooling |
-
2011
- 2011-12-26 CN CN2011205519952U patent/CN202452775U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563998A (en) * | 2011-12-26 | 2012-07-11 | 联合汽车电子有限公司 | Flat water-cooling heat radiation device |
| EP3146818A4 (en) * | 2014-05-23 | 2018-01-24 | Tesla Motors Inc. | Heatsink with internal cavity for liquid cooling |
| US10178805B2 (en) | 2014-05-23 | 2019-01-08 | Tesla, Inc. | Heatsink with internal cavity for liquid cooling |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20120926 |