CN220422299U - Radiation cooling radiator for wind power converter - Google Patents
Radiation cooling radiator for wind power converter Download PDFInfo
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- CN220422299U CN220422299U CN202321769553.4U CN202321769553U CN220422299U CN 220422299 U CN220422299 U CN 220422299U CN 202321769553 U CN202321769553 U CN 202321769553U CN 220422299 U CN220422299 U CN 220422299U
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- Prior art keywords
- heat dissipation
- wind power
- power converter
- radiator
- heat
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- 230000005855 radiation Effects 0.000 title claims abstract description 35
- 238000001816 cooling Methods 0.000 title claims abstract description 32
- 230000017525 heat dissipation Effects 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000002791 soaking Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 230000006872 improvement Effects 0.000 abstract description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910021389 graphene Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to the technical field of wind power converter heat dissipation, in particular to a radiation cooling radiator for a wind power converter, which comprises a heat dissipation substrate and heat dissipation fins which are integrally processed, wherein the back surface of the heat dissipation substrate is provided with a groove, a heat pipe with a soaking function is pressed in the groove, and the heat dissipation fins are coated with a radiation cooling coating for reducing the surface and internal temperature of the radiator; the heat dissipation substrate is divided into an air inlet area and an air outlet area, and the number of the heat dissipation fins in the air inlet area is smaller than that of the heat dissipation fins in the air outlet area so as to enhance heat dissipation at the air outlet of the radiator. The utility model combines the radiation cooling technology, the heat pipe soaking technology and the variable flow resistance technology, and has 20-30% improvement of heat dissipation efficiency compared with the traditional radiator.
Description
Technical Field
The utility model relates to the technical field of wind power converter heat dissipation, in particular to a special heat dissipation device of a wind power converter with a radiation cooling coating design, a soaking design and a variable flow resistance design.
Background
The wind power converter is an excitation device arranged on the rotor side in the doubly-fed wind power generator. When the rotating speed of the rotor changes, the amplitude, the phase, the frequency and the like of excitation are controlled through the converter, so that the stator side can input constant-frequency electricity to the power grid.
With the increase of the heat productivity of the IGBT power device in the wind power converter, the requirement on the heat dissipation power of the heat dissipation device is higher and higher, and under a given volume, the traditional heat dissipation mode mainly comprising conduction and convection reaches the limit of the heat dissipation device, so that the breakthrough of the heat dissipation efficiency of the heat dissipation device becomes a difficult problem in the field.
Disclosure of Invention
In view of the problem that the conventional radiator using conduction and convection as main heat dissipation modes has reached the heat dissipation limit, the present utility model provides a radiator with a radiation cooling coating design, a soaking design and a variable flow resistance design.
The utility model provides a radiation cooling radiator for a wind power converter, which comprises a radiating substrate and radiating fins which are integrally processed, wherein the back surface of the radiating substrate is provided with a groove, and a heat pipe with a soaking function is pressed in the groove; the heat dissipation substrate is divided into an air inlet area and an air outlet area, and the number of the heat dissipation fins in the air inlet area is smaller than that of the heat dissipation fins in the air outlet area so as to enhance heat dissipation at the air outlet of the radiator.
Preferably, the groove width of the groove is smaller than the width of the heat pipe, and the heat pipe is in interference fit with the groove.
Preferably, the grooves are arranged on the heat dissipation substrate in groups of two at equal intervals.
Preferably, the groove is of a structure with two ends in a straight line and the middle part in a bent shape.
Preferably, the radiation cooling coating is composed of a ceramic material having a high infrared emissivity in the near infrared band.
Compared with the prior art, the radiator combines the radiation cooling technology, the heat pipe soaking technology and the variable flow resistance technology, and has 20-30% improvement of heat radiation efficiency compared with the traditional radiator.
Drawings
FIG. 1 is a front view of a radiant cooling radiator for a wind power converter provided in accordance with an embodiment of the present utility model;
FIG. 2 is a top view of a radiant cooling heat sink for a wind power converter provided in accordance with an embodiment of the present utility model;
fig. 3 is a bottom view of a radiant cooling radiator for a wind power converter according to an embodiment of the utility model.
Reference numerals: a heat radiation base plate 1, an air inlet area 11, an air outlet area 12, heat radiation fins 2 and a heat pipe 3.
Detailed Description
Hereinafter, embodiments of the present utility model will be described with reference to the accompanying drawings. In the following description, like modules are denoted by like reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, a detailed description thereof will not be repeated.
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the utility model.
Fig. 1 to 3 respectively show structures of a radiation cooling radiator for a wind power converter according to an embodiment of the utility model from three angles.
As shown in fig. 1 to 3, the radiation cooling radiator for a wind power converter provided by the embodiment of the utility model comprises a radiating substrate 1 and radiating fins 2, wherein the radiating substrate 1 and the radiating fins 2 are integrally processed, the radiating fins 2 are fixed on the front surface of the radiating substrate 1, the radiating substrate 1 is divided into an air inlet area 11 and an air outlet area 12, the number of the radiating fins positioned in the air inlet area 11 is smaller than that of the radiating fins positioned in the air outlet area 12, and the design of variable flow resistance of the radiator is realized, so that the flow resistance of the air inlet of the radiator is reduced, and the radiating capacity of the air outlet of the radiation cooling radiator is enhanced.
The back of the heat dissipation substrate 1 is provided with a plurality of groups of grooves, the grooves of the groups are distributed on the heat dissipation substrate 1 at equal intervals, and the number of the grooves of each group is two, namely the groove distances among the groups are equal, and the groove distances among the groups are the same.
And a heat pipe 3 is arranged in each groove in a pressing mode, the width of the heat pipe 3 is slightly larger than that of the grooves, pressure is applied to the heat pipe 3, the heat pipe 3 is pressed into the grooves, and the heat pipe 3 is fixed in the grooves in an interference fit mode.
Deionized pure water is introduced into the heat pipe 3, the heat pipe 3 mainly plays a role in soaking, and the temperature of the radiating fins 2 is increased after soaking, so that the radiating efficiency of the radiator is improved.
In order to increase the contact area between the heat pipe 3 and the heat dissipation substrate 1, the heat pipe 3 is designed as a bent structure, i.e. two ends of the heat pipe 3 are straight and the middle is bent, and finally a lightning-like structure is formed. The shape of the groove is adapted to the shape of the heat pipe 3.
In order to strengthen the radiation and heat dissipation of the radiating fins 2, the surface of the radiating fins 2 is coated with a radiation cooling coating, the radiation cooling coating is made of ceramic materials with high infrared emissivity in the near infrared band, the high heat conductivity and the high emissivity of infrared ceramics are utilized to transfer the surface heat of the radiating fins 2 into the radiation cooling coating, the radiation is conducted to the outside in an infrared mode, the heat exchange between the radiating fins 2 and the outside is quickened, the surface and the internal temperature of the radiation cooling radiator are reduced, and therefore the purpose of improving the radiation efficiency of the radiation cooling radiator is achieved.
The radiation cooling coating can be specifically a graphene and zirconia composite material, on one hand, the radiation cooling efficiency is realized by utilizing the intrinsic high infrared emissivity and high thermal conductivity of the graphene and the zirconia, and on the other hand, after the two materials are compounded, the aggregation of the graphene can be inhibited and phonon spectrum matching can be realized through a synergistic mechanism, so that the radiation cooling efficiency is further improved.
The two-component high emissivity infrared radiation ceramic coating can also be made of other composite materials with intrinsic high infrared emissivity and high thermal conductivity.
The radiation cooling radiator combines the radiation cooling technology, the heat pipe soaking technology and the variable flow resistance technology, and has 20-30% improvement of heat radiation efficiency compared with the traditional heat radiation device, thereby improving the effective way of heat management efficiency of the domestic high-power radiator. The utility model has wide application prospect in modern power electronic products with continuously increased power of heating devices, increasingly complex heat flow distribution and continuously increased heating devices.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present disclosure may be performed in parallel, sequentially, or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
The above embodiments do not limit the scope of the present utility model. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (5)
1. The radiation cooling radiator for the wind power converter comprises a radiating substrate and radiating fins which are integrally processed, wherein a groove is formed in the back surface of the radiating substrate, and a heat pipe with a soaking function is pressed in the groove; the heat dissipation substrate is divided into an air inlet area and an air outlet area, and the number of the heat dissipation fins in the air inlet area is smaller than that of the heat dissipation fins in the air outlet area so as to enhance heat dissipation at the air outlet of the radiator.
2. The radiant cooling heat sink for a wind power converter as set forth in claim 1, wherein a groove width of said groove is smaller than a width of said heat pipe, said heat pipe being interference fit with said groove.
3. The radiation cooling radiator for a wind power converter according to claim 2, wherein the grooves are arranged in a group of two at equal intervals on the heat radiation substrate.
4. A radiant cooling radiator for a wind power converter as claimed in claim 3 wherein said recess is of a straight line at both ends and a bent shape at the middle.
5. The radiant cooling heat sink for a wind power converter as claimed in claim 1, wherein the radiant cooling coating is composed of a ceramic material having infrared emissivity in the near infrared band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321769553.4U CN220422299U (en) | 2023-07-06 | 2023-07-06 | Radiation cooling radiator for wind power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321769553.4U CN220422299U (en) | 2023-07-06 | 2023-07-06 | Radiation cooling radiator for wind power converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220422299U true CN220422299U (en) | 2024-01-30 |
Family
ID=89657799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321769553.4U Active CN220422299U (en) | 2023-07-06 | 2023-07-06 | Radiation cooling radiator for wind power converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220422299U (en) |
-
2023
- 2023-07-06 CN CN202321769553.4U patent/CN220422299U/en active Active
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