CN220791419U - Heat radiation structure and main control module heat radiation device of offshore wind turbine control cabinet - Google Patents
Heat radiation structure and main control module heat radiation device of offshore wind turbine control cabinet Download PDFInfo
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- CN220791419U CN220791419U CN202322414837.8U CN202322414837U CN220791419U CN 220791419 U CN220791419 U CN 220791419U CN 202322414837 U CN202322414837 U CN 202322414837U CN 220791419 U CN220791419 U CN 220791419U
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- 230000005855 radiation Effects 0.000 title abstract description 15
- 230000017525 heat dissipation Effects 0.000 claims abstract description 39
- 238000012546 transfer Methods 0.000 claims abstract description 39
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 239000004065 semiconductor Substances 0.000 claims abstract description 21
- 230000001012 protector Effects 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 48
- 229910052751 metal Inorganic materials 0.000 claims description 48
- 239000002184 metal Substances 0.000 claims description 48
- 229910052797 bismuth Inorganic materials 0.000 abstract description 7
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 abstract description 7
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 abstract description 7
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- 230000005679 Peltier effect Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
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- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a heat radiation structure and a heat radiation device of a main control module of an offshore wind turbine control cabinet, and relates to the technical field of heat radiation of wind turbine equipment, comprising a control cabinet unit, a heat radiation fan, a heat radiation device and a heat radiation device, wherein the control cabinet unit comprises a control cabinet, a main control module and a heat radiation fan; the heat dissipation unit comprises a direct current power supply, a heat transfer module, an insulating sheet and a surge protector. The utility model has the beneficial effects that when current passes through the N-type and P-type bismuth telluride semiconductors, electrons in the N-type semiconductors and holes in the P-type semiconductors reversely flow by utilizing an electric field, absorb heat on the guide plate, and release heat at the other end, the cooling end is closely attached to the main control module by utilizing the high temperature difference, the cooling end is far away from the main control module, the cooling fan is arranged at the cooling end for continuously cooling, and the cooling end can continuously radiate heat for the main control module as long as the heat of the cooling end can radiate, so that the high-efficiency operation of the main control module is ensured.
Description
Technical Field
The utility model relates to the technical field of fan equipment heat dissipation, in particular to a heat dissipation structure and a main control module heat dissipation device of an offshore fan control cabinet.
Background
Wind power generation is the fastest growing green energy technology in the world, and people have put their eyes on the ocean while building wind farms on land. The offshore wind turbine gradually becomes a main power generation source in eastern coastal areas due to the advantages of higher energy utilization rate and the like. The sunlight is directly emitted to the totally-enclosed cabin of the fan at the high temperature in summer when meeting, so that the environment temperature is higher, the fan runs at full load when meeting the offshore windy weather, the environment temperature of the cabin is gradually increased, the fan is equipped with an exhaust fan in a fan control cabinet to exhaust heat out of the cabinet, but the cooling effect is not satisfactory due to numerous elements in the cabinet, and a main control module serving as a fan core belongs to an electronic device and is easily affected by high temperature, so that the fan is operated at reduced power, and the energy conversion rate is reduced.
Aiming at the problems in the actual situation, a heat radiation structure and a heat radiation device of a main control module of an offshore wind turbine control cabinet are needed to solve the problems.
Disclosure of Invention
Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.
The present utility model has been made in view of the above-mentioned prior art problems.
The utility model aims to provide a heat dissipation structure which aims to solve the problem that the temperature of a main control module in an offshore wind turbine control cabinet is too high.
In order to solve the technical problems, the utility model provides the following technical scheme: the heat dissipation structure comprises a heat dissipation unit, wherein the heat dissipation unit comprises a direct current power supply, and the direct current power supply current flows through a plurality of heat transfer modules connected in series from a positive electrode and finally flows to a negative electrode of the direct current power supply;
the heat transfer module comprises a first metal conductor, a first transistor, a second metal conductor and a second transistor which are sequentially connected.
As a preferred embodiment of the heat dissipation structure of the present utility model, wherein: the current led out from the positive electrode of the direct current power supply flows through the first metal conductor, the first transistor, the second metal conductor and the second transistor in sequence, and finally flows back to the negative electrode of the direct current power supply;
the heat transfer module is controlled to be switched on and off by a second switch.
As a preferred embodiment of the heat dissipation structure of the present utility model, wherein: the direct current power supply is a storage battery pack with voltage of 12V and current of 5A.
As a preferred embodiment of the heat dissipation structure of the present utility model, wherein: the first transistor is an N-type semiconductor transistor, and the second transistor is a P-type semiconductor transistor.
As a preferred embodiment of the heat dissipation structure of the present utility model, wherein: the first metal conductors are distributed in a straight line;
the second metal conductors are also distributed in a straight line;
the first metal conductor and the second metal conductor are arranged in parallel.
As a preferred embodiment of the heat dissipation structure of the present utility model, wherein: and an insulating sheet is attached to one side, far away from the first transistor, of the second metal conductor.
As a preferred embodiment of the heat dissipation structure of the present utility model, wherein: and a radiating fin is attached to one side, far away from the first transistor, of the first metal conductor.
As a preferred embodiment of the heat dissipation structure of the present utility model, wherein: and surge protectors are connected in parallel at two ends of the heat transfer module.
The heat dissipation structure has the beneficial effects that: when current passes through the N-type and P-type bismuth telluride semiconductors, electrons in the N-type semiconductor and holes in the P-type semiconductor are enabled to flow reversely by an electric field, heat is absorbed on the guide vane, heat is released at the other end of the N-type and P-type bismuth telluride semiconductor, the cooling end is closely attached to the main control module by utilizing the high temperature difference, the cooling end is far away from the main control module, and the cooling end can continuously dissipate heat for the main control module as long as the heat of the cooling end can be dissipated, so that the efficient operation of the main control module is ensured.
The utility model further aims to provide a heat dissipation device for the main control module of the offshore wind turbine control cabinet, which aims to solve the problem that the cooling effect is not obvious in a single heat dissipation mode.
In order to solve the technical problems, the utility model also provides the following technical scheme: a heat dissipating double-fuselage of main control module of the offshore wind turbine control cabinet, it includes the heat dissipating double-fuselage; the control cabinet unit comprises a control cabinet and a main control module arranged in the control cabinet, wherein the main control module is also connected with a cooling fan in parallel, and the main control module and the cooling fan are powered by an alternating current power supply;
the main control module is contacted with the heat transfer module through an insulating sheet.
As a preferable scheme of the main control module heat dissipation device of the offshore wind turbine control cabinet, the utility model comprises the following steps: the control cabinet comprises a heat radiation opening arranged on the side wall of the control cabinet;
the cooling fan is controlled to be on-off through a first switch;
the cooling fan is arranged on the side wall of the control cabinet.
The main control module heat dissipation device of the offshore wind turbine control cabinet has the beneficial effects that: the heat dissipation effect is enhanced through two heat dissipation modes, and meanwhile, the heat transfer of the heat dissipation structure is enhanced, and the cooling efficiency of the heat dissipation structure is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of an overall circuit of a heat dissipating unit according to the present utility model.
Fig. 2 is a heat flow chart of the heat dissipating unit in the present utility model.
Fig. 3 is a current flow chart of the heat dissipating unit in the present utility model.
Fig. 4 is a schematic diagram of the overall structure of the heat dissipating device according to the present utility model.
Fig. 5 is a schematic diagram of an internal circuit of the heat dissipating device according to the present utility model.
Fig. 6 is a circuit schematic diagram of a main control module in the present utility model.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 3, a heat dissipating structure is provided according to a first embodiment of the present utility model, which includes a heat dissipating unit 200 including a DC power source DC, and a DC power source DC current flows from a positive electrode through a plurality of heat transfer modules 201 connected in series and finally flows to a negative electrode of the DC power source DC;
the heat transfer module 201 includes a first metal conductor 201a, a first transistor 201b, a second metal conductor 201c, and a second transistor 201d, which are sequentially connected.
Further, the current led out from the positive electrode of the direct current power supply DC flows through the first metal conductor 201a, the first transistor 201b, the second metal conductor 201c and the second transistor 201d in sequence, and finally flows back to the negative electrode of the direct current power supply DC;
the heat transfer module 201 is controlled to be turned on and off by the second switch F2.
Further, the direct current power supply DC is a storage battery pack with voltage of 12V and current of 5A.
Further, the first transistor 201b is an N-type semiconductor transistor, and the second transistor 201d is a P-type semiconductor transistor.
It should be noted that, the current of the direct current power supply DC flows out from the positive electrode, flows through the heat transfer module 201, finally flows to the negative electrode of the power supply, the direct current power supply DC is a storage battery set with voltage of 12V and current of 5A, and the direct current power supply DC is an external power supply, so that the external direct current power supply DC is adopted, so that the replacement is convenient, external power supplies with different specifications can be selected according to different conditions, and different heat dissipation effects are achieved.
Preferably, the on/off of the heat transfer module 201 is controlled by the second switch F2, when the device needs to dissipate heat, the second switch F2 is closed, and the heat transfer module 201 starts to work to cool the main control module 102.
Preferably, the first metal conductor 201a and the second metal conductor 201c may be made of copper, aluminum, or other metal materials, where copper is used because copper has better thermal conductivity under the same area, so as to facilitate the transfer of internal heat.
Preferably, the first transistor 201b is an N-type bismuth telluride semiconductor transistor, the second transistor 201d is a P-type bismuth telluride semiconductor transistor, and the first metal conductor 201a and the second metal conductor 201c are connected therebetween, so that the current of the direct current power supply DC can flow along the first metal conductor 201a, the first transistor 201b, the second metal conductor 201c and the second transistor 201d in sequence after flowing out from the positive electrode, and finally flows to the negative electrode of the power supply.
When the second switch F2 is turned on, current flows from the positive electrode of the direct current power supply DC, flows through the first metal conductor 201a, the first transistor 201b, the second metal conductor 201c and the second transistor 201d in sequence, and finally flows to the negative electrode of the power supply, at this time, electrons in the first transistor 201b flow in the opposite direction to the current, that is, in the opposite direction, and holes in the second transistor 201d flow in the opposite direction.
In conclusion, the design is based on the Peltier effect, and power supplies are connected to two sides of different semiconductors, so that temperature difference is generated at two sides of the semiconductors, heat transfer is realized, and a heat dissipation effect is achieved.
Example 2
Referring to fig. 1 to 3, a second embodiment of the present utility model includes a heat dissipating unit 200, including a direct current power DC, where a direct current power DC current flows from a positive electrode through a plurality of heat transfer modules 201 connected in series, and finally flows to a negative electrode of the direct current power DC;
the heat transfer module 201 includes a first metal conductor 201a, a first transistor 201b, a second metal conductor 201c, and a second transistor 201d, which are sequentially connected.
Further, the current led out from the positive electrode of the direct current power supply DC flows through the first metal conductor 201a, the first transistor 201b, the second metal conductor 201c and the second transistor 201d in sequence, and finally flows back to the negative electrode of the direct current power supply DC;
the heat transfer module 201 is controlled to be turned on and off by the second switch F2.
Further, the direct current power supply DC is a storage battery pack with voltage of 12V and current of 5A.
Further, the first transistor 201b is an N-type semiconductor transistor, and the second transistor 201d is a P-type semiconductor transistor.
Further, the first metal conductors 201a are distributed in a straight line;
the second metal conductors 201c are also linearly distributed;
the first metal conductor 201a is disposed in parallel with the second metal conductor 201 c.
Further, an insulating sheet 202 is attached to a side of the second metal conductor 201c away from the first transistor 201 b.
Further, a heat sink 203 is attached to a side of the first metal conductor 201a away from the first transistor 201 b.
Further, the two ends of the heat transfer module 201 are also connected with the surge protector SPD in parallel.
It should be noted that, the current of the direct current power supply DC flows out from the positive electrode, flows through the heat transfer module 201, finally flows to the negative electrode of the power supply, the direct current power supply DC is a storage battery set with voltage of 12V and current of 5A, and the direct current power supply DC is an external power supply, so that the external direct current power supply DC is adopted, so that the replacement is convenient, external power supplies with different specifications can be selected according to different conditions, and different heat dissipation effects are achieved.
Preferably, the on/off of the heat transfer module 201 is controlled by the second switch F2, when the device needs to dissipate heat, the second switch F2 is closed, and the heat transfer module 201 starts to work to cool the main control module 102.
Preferably, the number of heat transfer modules 201 is several, and several heat transfer modules 201 are connected in series.
Preferably, the first metal conductor 201a and the second metal conductor 201c may be made of copper, aluminum, or other metal materials, where copper is used because copper has better thermal conductivity under the same area, so as to facilitate the transfer of internal heat.
Preferably, the first transistor 201b is an N-type bismuth telluride semiconductor transistor, the second transistor 201d is a P-type bismuth telluride semiconductor transistor, and the first metal conductor 201a and the second metal conductor 201c are connected therebetween, so that the current of the direct current power supply DC can flow along the first metal conductor 201a, the first transistor 201b, the second metal conductor 201c and the second transistor 201d in sequence after flowing out from the positive electrode, and finally flows to the negative electrode of the power supply.
Preferably, when current flows from the first transistor 201b to the second transistor 201d, the electric field causes electrons in the first transistor 201b and holes in the second transistor 201d to flow in opposite directions, and energy generated by them comes from heat energy of the transistors, so that a cooling end CE is generated, and the other end is a heat dissipating end HE.
Preferably, the heat transfer module 201 and the main control module 102 are not directly attached, and an insulating sheet 202 is placed between the heat transfer module 201 and the main control module 102, wherein the insulating sheet 202 is made of a ceramic sheet, and meanwhile, a layer of polyurethane is coated outside the insulating sheet 202, so that the phenomenon that condensation generated on the surface of the insulating sheet 202 due to the too low temperature of the insulating sheet 202 influences the operation of internal components of the equipment is prevented.
Preferably, the radiating fin 203 is further arranged on one side of the radiating end HE, and the radiating fin 203 is made of aluminum oxide, so that on one hand, the aluminum oxide has a good heat conduction effect, can timely transfer heat and increase the radiating effect, and on the other hand, the aluminum oxide surface is provided with a layer of oxide film, so that oxidation can be prevented, and the service life of the radiating device is prolonged.
Preferably, in order to prevent transient overvoltage shock inside the circuit caused by thunderstorm, surge protectors SPD are connected in parallel to both ends of the heat transfer module 201, thereby protecting the heat dissipation structure from damage.
When the temperature of the main control module 102 is too high, the second switch F2 is closed, and current flows through the heat transfer modules 201, and the electric field causes electrons in the first transistor 201b and holes in the second transistor 201d to flow reversely due to the plurality of heat transfer modules 201, so that heat is brought to the heat dissipation end, the temperature of the cooling end is very low, and the temperature of the main control module 102 is gradually reduced under the action of the plurality of heat transfer modules 201, thereby achieving the effect of cooling and heat dissipation.
In conclusion, the design is provided with the heat dissipation device on one side of the main control module based on the Peltier effect, so that one end close to the main control module absorbs heat and cools, and one end far away from the main control module dissipates heat, so that the problem of power reduction of the main control module caused by overhigh environment in the cabinet due to full-load operation of the fan control cabinet in summer high-temperature weather is solved.
Example 3
Referring to fig. 4 to 6, in a third embodiment of the present utility model, the embodiment provides a heat dissipating device for a main control module of an offshore wind turbine control cabinet, including a control cabinet unit 100, including a control cabinet 101, and a main control module 102 disposed in the control cabinet 101, where the main control module 102 is further connected in parallel with a heat dissipating fan 103, and the main control module 102 and the heat dissipating fan 103 are powered by an AC power supply AC;
the main control module 102 is in contact with the heat transfer module 201 through the insulating sheet 202.
Further, the control cabinet 101 includes a heat dissipation port 101a provided on a side wall thereof;
the cooling fan 103 is controlled to be on-off through the first switch F1;
the heat radiation fan 103 is provided on the side wall of the control cabinet 101.
It should be noted that, the side of the control cabinet 101 far away from the cabinet door is provided with a heat dissipation opening 101a, the size of the opening is the same as the area of the main control module 102, the main control module 102 is connected with an AC power supply AC in the control cabinet 101, and meanwhile, a heat dissipation fan 103 is connected in parallel, and finally, the zero line N is connected.
Preferably, the opening and closing of the heat dissipation fan 103 is controlled by the first switch F1, and when the device needs to dissipate heat, the first switch F1 can be closed to turn on the heat dissipation fan 103.
When the cooling fan is used, the alternating current power supply AC is connected, the main control module 102 starts to work, and the cooling fan 103 is controlled to be started through the first switch F1 to cool the control cabinet and the cooling structure.
In summary, the design installs the heat dissipating fan on the heat dissipating end of the heat dissipating structure for blowing heat of the heat dissipating end, so that heat transfer efficiency is accelerated, and cooling effect of the heat dissipating structure is enhanced.
To sum up, this design makes the heat abstractor both sides produce the difference in temperature based on peltier effect through setting up two kinds of different metal materials in main control module one side to blow away the heat at the heat dissipation end through radiator fan, make the cooling end last for main control module cooling, prevent main control module because of high temperature power reduces, guarantee that the fan can steady operation.
It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (10)
1. A heat dissipation structure, characterized in that: comprising the steps of (a) a step of,
a heat dissipating unit (200) comprising a direct current power supply (DC), the direct current power supply (DC) current flowing from a positive pole through a plurality of heat transfer modules (201) connected in series and finally to a negative pole of the direct current power supply (DC);
the heat transfer module (201) comprises a first metal conductor (201 a), a first transistor (201 b), a second metal conductor (201 c) and a second transistor (201 d) which are connected in sequence.
2. The heat dissipating structure of claim 1, wherein: the current led out from the positive electrode of the direct current power supply (DC) flows through the first metal conductor (201 a), the first transistor (201 b), the second metal conductor (201 c) and the second transistor (201 d) in sequence, and finally flows back to the negative electrode of the direct current power supply (DC);
the heat transfer module (201) is controlled to be switched on and off by a second switch (F2).
3. The heat dissipating structure of claim 2, wherein: the direct current power supply (DC) is a storage battery pack with voltage of 12V and current of 5A.
4. A heat dissipating structure as claimed in claim 2 or 3, wherein: the first transistor (201 b) is an N-type semiconductor transistor, and the second transistor (201 d) is a P-type semiconductor transistor.
5. The heat dissipating structure of claim 4, wherein: a plurality of first metal conductors (201 a) are distributed in a straight line;
the second metal conductors (201 c) are also distributed in a straight line;
the first metal conductor (201 a) is disposed in parallel with the second metal conductor (201 c).
6. The heat dissipating structure of claim 5, wherein: an insulating sheet (202) is attached to one side of the second metal conductor (201 c) away from the first transistor (201 b).
7. The heat dissipating structure of claim 6, wherein: a heat sink (203) is attached to one side of the first metal conductor (201 a) away from the first transistor (201 b).
8. The heat dissipating structure of claim 5 or 7, wherein: and Surge Protectors (SPDs) are also connected in parallel at two ends of the heat transfer module (201).
9. A heat abstractor of a main control module of an offshore wind turbine control cabinet is characterized in that: comprising a heat dissipating structure as recited in any of claims 1-8, further comprising,
the control cabinet unit (100) comprises a control cabinet (101) and a main control module (102) arranged in the control cabinet (101), wherein the main control module (102) is also connected with a cooling fan (103) in parallel, and the main control module (102) and the cooling fan (103) are powered by an Alternating Current (AC);
the main control module (102) is contacted with the heat transfer module (201) through an insulating sheet (202).
10. The offshore wind turbine control system main control module heat sink of claim 9, wherein:
the control cabinet (101) comprises a heat dissipation port (101 a) arranged on the side wall of the control cabinet;
the cooling fan (103) is controlled to be on-off through a first switch (F1);
the cooling fan (103) is arranged on the side wall of the control cabinet (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322414837.8U CN220791419U (en) | 2023-09-06 | 2023-09-06 | Heat radiation structure and main control module heat radiation device of offshore wind turbine control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322414837.8U CN220791419U (en) | 2023-09-06 | 2023-09-06 | Heat radiation structure and main control module heat radiation device of offshore wind turbine control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791419U true CN220791419U (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322414837.8U Active CN220791419U (en) | 2023-09-06 | 2023-09-06 | Heat radiation structure and main control module heat radiation device of offshore wind turbine control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791419U (en) |
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2023
- 2023-09-06 CN CN202322414837.8U patent/CN220791419U/en active Active
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