CN212230421U - Cold forging formula copper liquid cooling radiator - Google Patents
Cold forging formula copper liquid cooling radiator Download PDFInfo
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- CN212230421U CN212230421U CN202021207052.3U CN202021207052U CN212230421U CN 212230421 U CN212230421 U CN 212230421U CN 202021207052 U CN202021207052 U CN 202021207052U CN 212230421 U CN212230421 U CN 212230421U
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- heat dissipation
- cover plate
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Abstract
The utility model discloses a cold forging type copper liquid cooling radiator, wherein a water through hole is arranged at the top of a radiating main body, and a water nozzle body is arranged in the water through hole; a welding step is arranged on one side of the heat dissipation main body, and the heat dissipation cover plate and the welding step are welded and fixed through a friction stir welding process; the number of the heat dissipation main bodies is 2, and the thyristors are arranged between the two heat dissipation main bodies; the utility model improves the structure of the heat radiation main body and the heat radiation cover plate; the cold forging process is adopted, the cost is low, the efficiency is high, and the complex machining cost of the main body and the cover plate CNC can be reduced; compared with aluminum heat dissipation efficiency, the copper heat dissipation efficiency is improved by 20-25%; the corrosion resistance is 15-20% higher than that of an aluminum radiator; the sealing performance and the pressure resistance are good, the pressure resistance reaches 1Mpa, and no leakage phenomenon occurs in 10 minutes; the surface of the radiator is plated with a nickel film, so that the radiator has strong conductivity; the high-power thyristor solves the problem of heat dissipation, and has the advantages of low thermal resistance and small flow resistance.
Description
Technical Field
The utility model relates to a power electronics trade cooling technology field, concretely relates to cold forging formula copper liquid cooling radiator.
Background
With the rapid development of the power electronic industry, the heating power of electronic devices is higher and higher, so that the temperature of the devices is increased along with the increase of the power, and the junction temperature of the devices is one of important reasons influencing the service life of the devices; the existing common liquid cooling radiator is generally formed by CNC (computer numerical control) machining of a complex water channel and final welding, so that the machining cost is high, the production working hours are large, and the delivery period is slow; in order to solve the problem, the scheme provides a cold forging type copper liquid cooling radiator.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a cold-forged copper liquid-cooled heat sink.
According to the technical scheme provided by the embodiment of the utility model, a cold forging type copper liquid cooling radiator comprises a water nozzle body, a heat radiation main body, a thyristor and a heat radiation cover plate; a water through opening is formed in the top of the heat dissipation main body, and the water nozzle body is installed inside the water through opening; a welding step is arranged on one side of the heat dissipation main body, the heat dissipation cover plate is fixed inside the welding step, and the heat dissipation cover plate and the welding step are welded and fixed through a friction stir welding process; the number of the heat dissipation main bodies is 2, and the thyristors are arranged between the two heat dissipation main bodies;
the heat dissipation main body further comprises a boss, a welding track gap circle A, a welding step and a positioning hole; the boss is arranged at the middle part of the outer edge of one side, close to the water through opening, of the heat dissipation main body; the welding track notch circle A is arranged on one side, opposite to the lug boss, of the lower ring opening of the water through opening; the welding step extends downwards at the lower ring opening of the water through opening; the side, far away from the heat dissipation cover plate, of the heat dissipation main body is provided with the positioning hole;
the heat dissipation cover plate also comprises a welding track notch circle B, a splitter box, a flow guide rib and a positioning boss; the middle part of the heat dissipation cover plate is provided with a central hole, and the splitter box extends outwards along the edge right above the central hole; a plurality of flow guide ribs are uniformly distributed on the radiating cover plate along the periphery of the central hole; a welding track gap circle B matched with the welding track gap circle A is arranged on one side of the outer edge of the heat dissipation cover plate; and the positioning boss is arranged on one surface of the heat dissipation cover plate far away from the central hole.
The utility model discloses in, the location boss is seted up the middle part of the bottom surface board of heat dissipation apron, the position and the location boss of locating hole are located same horizontal horizon.
The utility model discloses in, the shape size in the step of welding step and the shape size phase-match of heat dissipation apron.
The utility model discloses in, the thyristor passes through locating hole and location boss are installed two between the heat dissipation main part.
In the utility model, the edge of the boss is arc-shaped.
The utility model discloses in, two the installation orientation of heat dissipation main part is the same, and two be located same horizontal horizon between the heat dissipation main part.
The utility model discloses in, sealing connection between threaded fastening O type circle and the limbers is passed through to the water jet body.
The utility model discloses in, plated the nickel membrane on the surface of radiator.
To sum up, the utility model has the advantages that:
1. the structure of the heat dissipation main body and the heat dissipation cover plate is improved;
2. the cold forging process is adopted, the cost is low, the efficiency is high, and the complex machining cost of the main body and the cover plate CNC can be reduced; compared with aluminum heat dissipation efficiency, the copper heat dissipation efficiency is improved by 20-25%; the corrosion resistance is 15-20% higher than that of an aluminum radiator;
3. the sealing performance and the pressure resistance are good, the pressure resistance reaches 1Mpa, and no leakage phenomenon occurs in 10 minutes;
4. the surface of the radiator is plated with a nickel film, so that the radiator has strong conductivity;
5. the high-power thyristor solves the problem of heat dissipation, and has the advantages of low thermal resistance and small flow resistance.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic sectional structure of the present invention;
fig. 2 is a schematic front view of the structure of the present invention;
fig. 3 is a schematic top view of the present invention;
fig. 4 is a schematic top view of the heat dissipating body of the present invention;
fig. 5 is a schematic front sectional view of the heat dissipating body of the present invention;
fig. 6 is a schematic structural view of the heat dissipation cover plate of the present invention;
fig. 7 is a schematic view of a cross-sectional structure of the middle heat dissipation cover plate of the present invention.
Reference numbers in the figures: 1. the water nozzle comprises a water nozzle body, 2 heat dissipation main bodies, 3 thyristors, 4 heat dissipation cover plates, 2.1 bosses, 2.2 welding track gap circles A, 2.3 welding steps, 2.4 positioning holes, 4.1 welding track gap circles B, 4.2 diversion channels, 4.3 diversion ribs and 4.4 positioning bosses.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, 2 and 3, a cold forging copper liquid cooling radiator comprises a water nozzle body 1, a heat radiation main body 2, a thyristor 3 and a heat radiation cover plate 4; the top of the heat dissipation main body 2 is provided with a water through opening, the water nozzle body 1 is installed inside the water through opening, and the water nozzle body 1 is connected with the water through opening in a sealing mode through a threaded fastening O-shaped ring. A welding step is arranged on one side of the heat dissipation main body 2, the heat dissipation cover plate 4 is fixed inside the welding step, and the heat dissipation cover plate 4 and the welding step are welded and fixed through a friction stir welding process; the shape and size of the inside of the step of the welding step are matched with the shape and size of the heat dissipation cover plate 4. The number of the heat dissipation main bodies 2 is 2, and the thyristor 3 is arranged between the two heat dissipation main bodies; the two heat dissipation main parts 2 are arranged in the same direction, and the two heat dissipation main parts 2 are located on the same horizontal line.
As shown in fig. 4 and 5, the heat dissipating main body 2 further includes a boss 2.1, a welding track gap circle a2.2, a welding step 2.3, and a positioning hole 2.4; the boss 2.1 is arranged at the middle position of the outer edge of one side, close to the water through opening, of the heat dissipation main body 2; the edge of the boss 2.1 is arc-shaped. A welding track gap circle A2.2 is arranged on one side, opposite to the boss 2.1, of the lower ring opening of the water through opening; the welding step 2.3 extends downwards at the lower ring opening of the water through opening; the side, far away from the heat dissipation cover plate 4, of the heat dissipation main body 2 is provided with the positioning hole 2.4;
in this radiator, heat dissipation main part 2 adopts the forging and pressing shaping, and the material is T3 copper, and this technology is through the mould forging shaping, has practiced thrift material cost, has reduced complicated machining process, reduces CNC equipment use cost and depreciation cost, has reduced high skill talent labour, has guaranteed off-the-shelf uniformity.
As shown in fig. 4 and 5, a boss 2.1 designed on the heat dissipation main body 2 is a welding process hole, and the hole needs to be machined after welding is completed so as to ensure the original shape of the liquid cooling radiator, so that the welding tool and the cost can be effectively reduced, and the problem of the process hole is solved; the heat dissipation cavity body of the heat dissipation main body 2 with the water through hole penetrating downwards is formed by forging, so that the machining cost and the material cost can be reduced; the welding track gap circle A2.2 is matched with the welding track gap circle B4.1 of the heat dissipation cover plate 4 to increase welding positioning points, so that the heat dissipation cover plate 4 can be effectively prevented from rotating; the welding step 2.3 can ensure the welding quality of the heat dissipation main body 2 and the heat dissipation cover plate 4 and prevent welding defects such as welding collapse and the like; the positioning hole 2.4 is matched with the positioning boss 4.4 of the heat dissipation cover plate 4, so that the thyristor 3 can be conveniently installed by a firmware, and the coaxiality of liquid cooling heat dissipation and the thyristor 3 is ensured.
As shown in fig. 6 and 7, the heat-dissipating cover plate 4 further includes a welding track notch circle B4.1, a diversion trench 4.2, a diversion rib 4.3, and a positioning boss 4.4; a central hole is formed in the middle of the heat dissipation cover plate 4, and the splitter box 4.2 extends outwards along the edge right above the central hole; a plurality of flow guide ribs 4.3 are uniformly distributed on the heat dissipation cover plate 4 along the periphery of the central hole; a welding track gap circle B4.1 matched with the welding track gap circle A2.2 is arranged on one side of the outer edge of the heat dissipation cover plate 4; the heat dissipation cover plate 4 is provided with a positioning boss 4.4 on one surface far away from the central hole, the positioning boss 4.4 is arranged in the middle of the bottom panel of the heat dissipation cover plate 4, and the positioning hole 2.4 and the positioning boss 4.4 are positioned on the same horizontal line.
As shown in fig. 1, the thyristor 3 is mounted between the two heat dissipation bodies 2 through the positioning hole 2.4 and the positioning boss 4.4.
As shown in fig. 6 and 7, the heat-dissipating cover plate 4 is formed integrally by forging and pressing, and is made of T3 copper, and is clearance-fitted (0.1mm-0.2mm) with the welding track notch circle a2.2 on the heat-dissipating main body 2 by simple CNC machining of the welding track notch circle B4.1, and the fit between the welding track notch circle B4.1 and the welding track notch circle a2.2 can increase the welding positioning point to prevent the heat-dissipating cover plate 4 from rotating; the splitter 4.2 can ensure that the water inlet and the water outlet do not cross water, and effectively leads the main water channel to form a U shape so as to achieve the heat dissipation effect; the flow guide ribs 4.3 can ensure the uniformity of the flow direction of the liquid and improve the heat dissipation performance; the positioning boss 4.4 facilitates the installation of the thyristor 3 by a firmware to ensure the coaxiality of liquid cooling heat dissipation and the thyristor 3.
The surface of the radiator is plated with a nickel film, the thickness of the nickel film is between 8 and 12 mu m, and the nickel film has strong conductivity.
The foregoing description is only exemplary of the preferred embodiments of the invention and is provided for the purpose of illustrating the general principles of the invention. Meanwhile, the scope of the present invention is not limited to the specific combinations of the above-described technical features, and other technical features or equivalent features may be combined arbitrarily without departing from the scope of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.
Claims (8)
1. A cold forging type copper liquid cooling radiator comprises a water nozzle body (1), a heat dissipation main body (2), a thyristor (3) and a heat dissipation cover plate (4); a water through hole is formed in the top of the heat dissipation main body (2), and the water nozzle body (1) is installed in the water through hole; a welding step is arranged on one side of the heat dissipation main body (2), the heat dissipation cover plate (4) is fixed inside the welding step, and the heat dissipation cover plate (4) and the welding step are welded and fixed through a friction stir welding process; the number of the heat dissipation main bodies (2) is 2, and the thyristors (3) are arranged between the two heat dissipation main bodies; the method is characterized in that:
the heat dissipation main body (2) further comprises a boss (2.1), a welding track gap circle A (2.2), a welding step (2.3) and a positioning hole (2.4); the boss (2.1) is arranged at the middle position of the outer edge of one side, close to the water through opening, of the heat dissipation main body (2); the side, opposite to the lug boss (2.1), of the lower ring opening of the water through opening is provided with the welding track notch circle A (2.2); the welding step (2.3) extends downwards at the lower ring opening of the water through opening; the side, far away from the heat dissipation cover plate (4), of the heat dissipation main body (2) is provided with the positioning hole (2.4);
the heat dissipation cover plate (4) further comprises a welding track notch circle B (4.1), a splitter box (4.2), a flow guide rib (4.3) and a positioning boss (4.4); a central hole is formed in the middle of the heat dissipation cover plate (4), and the splitter box (4.2) extends outwards along the edge right above the central hole; a plurality of flow guide ribs (4.3) are uniformly distributed on the heat dissipation cover plate (4) along the periphery of the central hole; a welding track gap circle B (4.1) matched with the welding track gap circle A (2.2) is arranged on one side of the outer edge of the heat dissipation cover plate (4); and the positioning boss (4.4) is arranged on one surface of the heat dissipation cover plate (4) far away from the central hole.
2. The cold forging copper liquid cooling radiator of claim 1, wherein: the positioning boss (4.4) is arranged in the middle of the bottom panel of the heat dissipation cover plate (4), and the positioning hole (2.4) and the positioning boss (4.4) are located on the same horizontal line.
3. The cold forging copper liquid cooling radiator of claim 1, wherein: the shape and size of the inside of the step of the welding step are matched with the shape and size of the heat dissipation cover plate (4).
4. The cold forging copper liquid cooling radiator of claim 1, wherein: the thyristor (3) is arranged between the two heat dissipation main bodies (2) through the positioning hole (2.4) and the positioning boss (4.4).
5. The cold forging copper liquid cooling radiator of claim 1, wherein: the edge of the boss (2.1) is arc-shaped.
6. The cold forging copper liquid cooling radiator of claim 1, wherein: the two heat dissipation main bodies (2) are arranged in the same direction, and the two heat dissipation main bodies (2) are located on the same horizontal line.
7. The cold forging copper liquid cooling radiator of claim 1, wherein: the water nozzle body (1) is in sealing connection with the water through hole through a threaded fastening O-shaped ring.
8. The cold forging copper liquid cooling radiator of claim 1, wherein: the surface of the radiator is plated with a nickel film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021207052.3U CN212230421U (en) | 2020-06-28 | 2020-06-28 | Cold forging formula copper liquid cooling radiator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021207052.3U CN212230421U (en) | 2020-06-28 | 2020-06-28 | Cold forging formula copper liquid cooling radiator |
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| CN212230421U true CN212230421U (en) | 2020-12-25 |
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| CN202021207052.3U Active CN212230421U (en) | 2020-06-28 | 2020-06-28 | Cold forging formula copper liquid cooling radiator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884930A (en) * | 2023-08-02 | 2023-10-13 | 河北冠泰电子技术有限公司 | Heat dissipation structure and manufacturing method thereof |
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- 2020-06-28 CN CN202021207052.3U patent/CN212230421U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884930A (en) * | 2023-08-02 | 2023-10-13 | 河北冠泰电子技术有限公司 | Heat dissipation structure and manufacturing method thereof |
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