CN220493409U - Evaporation cooling device and system for converter - Google Patents
Evaporation cooling device and system for converter Download PDFInfo
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- CN220493409U CN220493409U CN202321501364.9U CN202321501364U CN220493409U CN 220493409 U CN220493409 U CN 220493409U CN 202321501364 U CN202321501364 U CN 202321501364U CN 220493409 U CN220493409 U CN 220493409U
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- 238000001816 cooling Methods 0.000 title claims abstract description 110
- 238000001704 evaporation Methods 0.000 title description 4
- 230000008020 evaporation Effects 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims abstract description 127
- 238000010438 heat treatment Methods 0.000 claims abstract description 55
- 239000000565 sealant Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 230000017525 heat dissipation Effects 0.000 description 11
- 238000009413 insulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
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- 238000004880 explosion Methods 0.000 description 3
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
An evaporative cooling device of a current transformer, wherein the current transformer comprises at least one heating element; comprising the following steps: the heat exchanger, the liquid storage cavity, the gas pipeline, the liquid pipeline and the evaporative cooling working medium; wherein, the liquid storage cavity is filled with an evaporative cooling working medium; the liquid storage cavity is closely attached to the surface of the heating element, or the heating element is partially or completely immersed in the liquid storage cavity; the liquid storage cavity is connected with the heat exchanger through a gas pipeline and a liquid pipeline to form a closed circulation loop, and the circulation loop is filled with an evaporative cooling working medium. And a circulating pump can be additionally arranged in the circulating loop to provide power for the evaporative cooling circulation. The evaporative cooling device for the converter is simple in structure, small in occupied space, high in cooling efficiency, high in safety and reliability and capable of providing a new cooling solution for safe and stable operation of a high-capacity high-power-density converter.
Description
Technical Field
The application belongs to the technical field of heat dissipation, and particularly relates to an evaporative cooling device and an evaporative cooling system for a converter.
Background
With the rapid development of the fields of energy storage, photovoltaics, wind power and the like, the converter is taken as an important component part, the trend of large capacity and high power is more obvious, and the design is more miniaturized and light. These factors lead to a great increase in the heat generation power and power density of the converter, and in order to ensure stable and reliable operation of the device, the requirements on heat dissipation capacity are higher and higher.
In the prior art, key heating elements in a converter are generally cooled by air cooling or liquid cooling. The air cooling mode has simple structure, but has the defects of large radiator volume, relatively low radiating efficiency, large fan noise, high requirements on the use environment and the like, and the high-power density radiating requirement can not be met. The liquid cooling mode can meet the heat dissipation requirement of the current converter, but the liquid cooling mode generally adopts a forced circulation structure, so that the whole system has multiple equipment types, complex structure and larger volume and cost, and meanwhile, the reliability of the system is reduced. In addition, the cooling working medium used in the liquid cooling mode is generally limited glycol aqueous solution, deionized water and the like, once leakage occurs, the cooling working medium can corrode parts, and leakage to electrified parts can also cause short circuit so as to cause burning and explosion of components, so that the cooling working medium is a great potential safety hazard.
Therefore, there is a need to develop a new converter cooling system.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides a converter evaporative cooling device system, which solves the problems of low heat dissipation efficiency, complex system, low reliability and the like in the existing converter cooling scheme.
The utility model adopts the following technical scheme.
In one aspect, the application provides an evaporative cooling device of a current transformer, wherein the current transformer comprises at least one heating element;
the converter evaporative cooling device further comprises a heat exchanger, a liquid storage cavity, a gas pipeline, a liquid pipeline and an evaporative cooling working medium; the liquid storage cavity is filled with an evaporative cooling working medium; the liquid storage cavity is closely attached to the surface of the heating element, or the heating element is partially or completely immersed in the liquid storage cavity; the liquid storage cavity is connected with the heat exchanger through a gas pipeline and a liquid pipeline to form a closed evaporative cooling working medium circulation loop, and the loop is filled with the evaporative cooling working medium.
Further, a circulating pump can be arranged on the circulating loop;
when the circulating loop is provided with a circulating pump, the heat exchanger is arranged at any position of the circulating loop, and the circulating pump provides circulating power for the converter evaporative cooling device;
when the circulation loop is not provided with a circulation pump, the heat exchanger is arranged at the upper end of the circulation loop.
Further, the liquid storage cavity is provided with at least one air outlet joint and at least one liquid inlet joint; the air outlet joint is positioned above the liquid inlet joint; the air outlet joint is connected with an air pipeline; the liquid inlet joint is connected with a liquid pipeline.
Further, the heat exchanger is provided with at least one air inlet joint and at least one liquid outlet joint; the air inlet connector is positioned above the liquid outlet connector; the air inlet joint is connected with the air pipeline; the liquid outlet joint is connected with a liquid pipeline;
the structural form of the heat exchanger comprises a shell-and-tube type, a tube fin type, a plate type and a heat pipe type.
Further, the arrangement form of the heating element and the liquid storage cavity in the converter comprises:
each heating element uses one or more reservoirs.
The plurality of heating elements or all the heating elements share one liquid storage cavity.
Further, the arrangement form of the liquid storage cavity and the heat exchanger comprises:
each liquid storage cavity is connected with one heat exchanger independently or connected with a plurality of heat exchangers simultaneously;
the plurality of liquid storage cavities are commonly connected with a heat exchanger.
Further, when the liquid storage cavity is tightly adhered to the surface of the heating element, the liquid storage cavity is a sealed cavity;
when the heating element is partially or completely immersed in the liquid storage cavity, the liquid storage cavity is a cavity with a window matched with the extending position of the heating element, and the window is sealed by a sealing ring or sealant to form a sealed cavity.
In another aspect, the present application further provides a converter evaporative cooling system, including a frame structure, at least one converter, and at least one set of converter evaporative cooling devices as set forth in any one of the preceding claims; the converter and the liquid storage cavity are arranged in the frame structure; the heat exchanger is mounted on the main body of the frame structure or independently mounted outside the frame structure.
Further, the arrangement form of the heat exchanger between the converters comprises:
each converter is connected with a corresponding heat exchanger;
the plurality of converters are commonly connected to a common heat exchanger.
Further, the frame structure comprises a cabinet and a power container;
the arrangement form of the heat exchanger between the cabinets comprises:
each cabinet is connected with a corresponding heat exchanger;
the plurality of cabinets are commonly connected to a common heat exchanger.
The arrangement form of the heat exchanger between the electric power containers comprises:
each electric power container is connected with a corresponding heat exchanger;
the plurality of power containers are commonly connected to a common heat exchanger.
The utility model has the beneficial effects that compared with the prior art:
(1) The cooling scheme of this application adopts the phase transition cooling, and cooling efficiency is high, can satisfy the heat dissipation demand of large capacity, high power density converter, guarantees the safe and reliable operation of converter.
(2) The evaporative cooling working medium adopted by the application has the advantages of insulation, fire prevention, low boiling point, good cooling performance and the like, is not easy to cause blockage, leakage and the like, can not corrode parts, can effectively prevent short circuits and the accidents such as element burning and explosion caused by the short circuits, and is a more superior cooling working medium compared with conventional air cooling and liquid cooling.
(3) The current transformer evaporative cooling device is simple in structure, small in equipment quantity, capable of effectively reducing occupied area and manufacturing cost, and simple in structure, greatly reduces the occurrence rate of system faults and improves the reliability of a system.
Drawings
Fig. 1 is a schematic view of an evaporative cooling device for a current transformer in an embodiment of the present application;
FIG. 2 is a schematic diagram of an evaporative cooling device for a current transformer in an embodiment of the present application;
FIG. 3 is a schematic diagram of a configuration of a liquid storage cavity and a heating element of a current transformer of an embodiment of the present application, in which one heating element uses a plurality of liquid storage cavities;
FIG. 4 is a schematic diagram of a configuration of a liquid storage cavity and a heating element of a current transformer of an embodiment of the present application, in which a plurality of heating elements use one liquid storage cavity;
FIG. 5 is a schematic diagram of a connection between a liquid storage cavity and a heat exchanger of an evaporative cooling device of a current transformer according to an embodiment of the present application, wherein a plurality of liquid storage cavities use one heat exchanger;
FIG. 6 is a schematic diagram of a connection between a liquid storage cavity and a heat exchanger of an evaporative cooling device of a current transformer according to an embodiment of the present application, wherein one liquid storage cavity uses a plurality of heat exchangers;
fig. 7 is a schematic diagram of a connection manner between a liquid storage cavity of an evaporative cooling device of a current transformer and a heating element of the current transformer, wherein the heating element is partially immersed in the liquid storage cavity;
fig. 8 is a schematic diagram of a connection manner between a liquid storage cavity of an evaporative cooling device of a current transformer and a heating element of the current transformer, wherein the heating element is all immersed in the liquid storage cavity;
FIG. 9 is a schematic diagram of an inverter evaporative cooling system according to an embodiment of the present application, with heat exchangers positioned on a frame structure;
FIG. 10 is a schematic diagram of a current transformer evaporative cooling system according to an embodiment of the present application, with the heat exchanger separately mounted outside the frame structure;
FIG. 11 is a schematic diagram of a connection mode of a converter and a heat exchanger in an evaporative cooling system of a converter, in which a plurality of converters share a heat exchanger;
fig. 12 is a schematic diagram of a heat exchanger arrangement in a current transformer evaporative cooling system according to an embodiment of the present application, where a plurality of frame structures share a heat exchanger.
The reference numerals of fig. 1 to 12 are explained as follows:
the device comprises a 1-converter, a 2-heating element and a 3-liquid storage cavity; 31-an air outlet joint; 32-liquid inlet joint; 4-gas piping; 5-a liquid line; 6-heat exchanger, 61-air inlet joint, 62-liquid outlet joint; 7-evaporating and cooling working medium; 8-a circulating pump; 9-a frame structure; 10-a heat exchanger support frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described herein are merely some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are within the scope of the present utility model.
The application provides an evaporative cooling device of a converter, which comprises a heat exchanger 6, a liquid storage cavity 3, a gas pipeline 4, a liquid pipeline 5 and an evaporative cooling working medium 7; the converter 1 comprises at least one heating element 2; the method comprises the steps of carrying out a first treatment on the surface of the The liquid storage cavity 3 is internally provided with an evaporative cooling working medium 7; the liquid storage cavity 3 is closely attached to the surface of the heating element 2, or the heating element 2 is partially or completely immersed in the liquid storage cavity 3; the liquid storage cavity 3 and the heat exchanger 6 are connected through a gas pipeline 4 and a liquid pipeline 5 to form a closed evaporative cooling working medium circulation loop, and the loop is filled with an evaporative cooling working medium 7.
The heat exchanger 6 is installed at the upper end of the circulation loop or at any position of the circulation loop in connection with the circulation pump 8.
As shown in fig. 1, a self-circulation type converter evaporative cooling device is provided, which mainly comprises a heat exchanger 6, a liquid storage cavity 3, a gas pipeline 4, a liquid pipeline 5 and an evaporative cooling working medium 7; the liquid storage cavity 3 is internally provided with an evaporative cooling working medium 7; the liquid storage cavity 3 is closely attached to the surface of the heating element 2, or the heating element 2 is partially or completely immersed in the liquid storage cavity 3; the heat exchanger 6 is arranged at the uppermost end of the evaporative cooling device; the liquid storage cavity 3 and the heat exchanger 6 are connected through a gas pipeline 4 and a liquid pipeline 5 to form a closed circulation loop, and the loop is filled with an evaporative cooling working medium 7. The self-circulation evaporative cooling does not need extra driving, is energy-saving and environment-friendly, and can adapt to heat source changes.
As shown in fig. 2, a forced circulation type converter evaporative cooling device is provided, which mainly comprises a heat exchanger 6, a liquid storage cavity 3, a gas pipeline 4, a liquid pipeline 5, a circulating pump 8 and an evaporative cooling working medium 7; the converter 1 comprises at least one heating element 2; the liquid storage cavity 3 is internally provided with an evaporative cooling working medium 7; the liquid storage cavity 3 is closely attached to the surface of the heating element 2, or the heating element 2 is partially or completely immersed in the liquid storage cavity 3; the liquid storage cavity 3 and the heat exchanger 6 are connected through a gas pipeline 4 and a liquid pipeline 5 to form a closed circulation loop, and the loop is filled with an evaporative cooling working medium 7; the circulating pump 8 is arranged in the circulating loop and provides circulating power for the evaporative cooling device; the liquid storage cavity 3 and the heat exchanger 6 are arranged at any position of the circulation loop. The forced circulation type evaporative cooling has the advantages that the circulation pump is used as a drive, the arrangement position of equipment is arbitrary, the equipment can be flexibly adjusted, and the environment dependence degree is low.
As shown in fig. 1 and 2, the liquid storage cavity 3 is provided with at least one air outlet joint 31 and at least one liquid inlet joint 32; the air outlet joint 31 is positioned above the liquid inlet joint 32; the air outlet joint 31 is connected with the air pipeline 4; the liquid inlet connector 32 is connected with the liquid pipeline 5.
The material of the liquid storage cavity 3 comprises aluminum alloy or copper material, and the heat conductivity coefficient is high, so that the power consumption of the heating element 2 can be conducted out more efficiently, the temperature of the heating element 2 is reduced, and the safe and stable operation of the heating element 2 is ensured.
The types of heating elements 2 include IGBTs, inductors, transformers.
The heat exchanger 6 is provided with at least one inlet connection 61 and at least one outlet connection 62; the air inlet joint 61 is positioned above the liquid outlet joint 62; the air inlet joint 61 is connected with the air pipeline 4; the liquid outlet joint 62 is connected with the liquid pipeline 5.
Fig. 1 and 2 show the use of one reservoir 3 per heating element 2.
Preferably, as shown in fig. 3, one heating element 2 uses a plurality of liquid storage chambers 3.
Preferably, as shown in fig. 4, a plurality of heating elements 2 or all heating elements 2 share one liquid storage chamber 3.
Fig. 1 and 2 show that each reservoir 3 is individually connected to a heat exchanger 6.
Preferably, as shown in fig. 5, a plurality of liquid storage chambers 3 are commonly connected to one heat exchanger 6.
Preferably, as shown in fig. 6, one liquid storage cavity 3 is connected with a plurality of heat exchangers 6 at the same time.
The liquid storage cavity 3 and the surface of the heating element 2 are tightly attached as shown in fig. 1 to 6, and the liquid storage cavity 3 is a sealed cavity at the moment, so that the evaporative cooling working medium and the heating element are completely isolated in the mode, the whole structure is simple, and the leakage risk is lower.
Fig. 7 shows that the heating element 2 is partially immersed in the liquid storage cavity 3, fig. 8 shows that the heating element 2 is fully immersed in the liquid storage cavity 3, and at this time, the liquid storage cavity 3 is a cavity with a window matched with the extending position of the heating element 2, and the window is sealed by a sealing ring or sealant to form a sealed cavity. Under the structural form, the heat source is in direct contact with the evaporative cooling working medium 7, so that the contact area is large, the heat exchange efficiency is higher, and the heat dissipation effect is better.
The heating element 2 may be located inside the current transformer 1 as shown in fig. 1-2, may be located outside the current transformer 1 as shown in fig. 7, or may be located outside the current transformer 1 as shown in fig. 8.
The heat dissipation mode of the heat exchanger 6 includes natural cooling, forced air cooling and liquid cooling. The natural cooling does not need extra equipment, the energy consumption and the cost are lower, the forced air cooling is additionally provided with a fan, the heat dissipation effect is better, and meanwhile, the cost is not increased much. The liquid cooling mode has higher additional cost and good heat dissipation effect, and can easily meet the heat dissipation requirement of high power density.
The structural forms of the heat exchanger 6 include shell and tube, tube fin, plate and heat pipe.
The evaporative cooling working medium 7 is an insulating and nonflammable liquid with a boiling point between 30 ℃ and 70 ℃ and high evaporation latent heat, and the material comprises fluorocarbon compounds. The high-voltage power supply can well meet the requirements of electric insulation, chemical stability, incombustibility, non-toxicity, environmental protection and the like, and can not cause damage to equipment and staff even if leakage occurs in the long-term working process.
The gas pipeline 4 and the liquid pipeline 5 are made of insulating flame-retardant materials, so that insulation problems are not caused to the system, and new combustibles are not introduced.
As shown in fig. 9, the present application also proposes a converter evaporative cooling system comprising a frame structure 9, at least one converter 1 and at least one set of converter evaporative cooling devices as described in any of the foregoing. The converter 1 and the liquid storage cavity 3 are arranged inside the frame structure 9; the heat exchanger 6 is mounted on the body of the frame structure 9, including inside and outside, preferably on top of the body of the frame structure 9, without additional space occupation, improving field utilization.
Preferably, the heat exchanger 6 is mounted independently from the outside of the frame structure 9, as shown in fig. 10, in which case the heat exchanger 6 is mounted by means of a heat exchanger support frame 10. The arrangement form is convenient for sharing the large-scale heat exchanger by a whole station or a local area, simplifies the pipeline connection and reduces the equipment quantity.
The frame structure 9 comprises a cabinet and a power container.
As shown in fig. 1, 2, 9 and 10, in the converter evaporative cooling system, each converter 1 is connected with its corresponding heat exchanger 6, and this form can be flexibly configured, is suitable for different requirements, and is easy to form standardized products.
Preferably, as shown in fig. 11, the plurality of converters 1 are commonly connected with the common heat exchanger 6, so that the pipeline connection of the cooling system is simpler, the number of devices is small, the equipment investment can be effectively reduced, and the space utilization rate can be improved.
The connection of the heat exchangers between the frame structures 9 as shown in fig. 9 to 10 is such that each frame structure 9 is connected to its corresponding heat exchanger 6, which is a configuration that is flexible, facilitating flexible arrangement of the cooling system in various terrains.
Preferably, as shown in fig. 12, a plurality of frame structures 9 may be commonly connected to a common heat exchanger 6. At the moment, the configuration of the heat exchanger is conveniently planned by total stations or local areas, the total station cooling network structure is simplified, the number of equipment is reduced, the cost is reduced, and the field utilization rate is improved.
The utility model has the beneficial effects that compared with the prior art:
(1) The cooling scheme of this application adopts the phase transition cooling, and cooling efficiency is high, can satisfy the heat dissipation demand of large capacity, high power density converter, guarantees the safe and reliable operation of converter.
(2) The evaporative cooling working medium adopted by the application has the advantages of insulation, fire prevention, low boiling point, good cooling performance and the like, is not easy to cause blockage, leakage and the like, can not corrode parts, can effectively prevent short circuits and the accidents such as element burning and explosion caused by the short circuits, and is a more superior cooling working medium compared with conventional air cooling and liquid cooling.
(3) The current transformer evaporative cooling device is simple in structure, small in equipment quantity, capable of effectively reducing occupied area and manufacturing cost, and simple in structure, greatly reduces the occurrence rate of system faults and improves the reliability of a system.
Finally, 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 above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the specific embodiments of the utility model without departing from the spirit and scope of the utility model, which is intended to be covered by the claims.
Claims (10)
1. A current transformer evaporative cooling device, the current transformer (1) comprising at least one heating element (2), characterized in that:
the converter evaporative cooling device further comprises a heat exchanger (6), a liquid storage cavity (3), a gas pipeline (4), a liquid pipeline (5) and an evaporative cooling working medium (7);
an evaporative cooling working medium (7) is arranged in the liquid storage cavity (3); the liquid storage cavity (3) is tightly attached to the surface of the heating element (2), or the heating element (2) is partially or completely immersed in the liquid storage cavity (3);
the liquid storage cavity (3) is connected with the heat exchanger (6) through a gas pipeline (4) and a liquid pipeline (5) to form a closed circulation loop, and the circulation loop is filled with an evaporative cooling working medium (7).
2. The evaporative cooling device for a current transformer according to claim 1, wherein:
a circulating pump (8) is also arranged on the circulating loop;
when the circulating loop is provided with the circulating pump (8), the heat exchanger (6) is arranged at any position of the circulating loop, and the circulating pump (8) provides circulating power for the converter evaporative cooling device;
when the circulation loop is not provided with the circulation pump (8), the heat exchanger (6) is arranged at the upper end of the circulation loop.
3. The evaporative cooling device for a current transformer according to claim 1, wherein:
the liquid storage cavity (3) is provided with at least one air outlet joint (31) and at least one liquid inlet joint (32); the air outlet joint (31) is positioned above the liquid inlet joint (32); the air outlet joint (31) is connected with the air pipeline (4); the liquid inlet joint (32) is connected with the liquid pipeline (5).
4. The evaporative cooling device for a current transformer according to claim 1, wherein:
the heat exchanger (6) is provided with at least one air inlet joint (61) and at least one liquid outlet joint (62); the air inlet joint (61) is positioned above the liquid outlet joint (62); the air inlet joint (61) is connected with the air pipeline (4); the liquid outlet joint (62) is connected with the liquid pipeline (5);
the structural form of the heat exchanger (6) comprises a shell-and-tube type, a tube fin type, a plate type and a heat pipe type.
5. The evaporative cooling device for a current transformer according to claim 1, wherein:
the arrangement form of the heating element (2) and the liquid storage cavity (3) in the converter (1) comprises:
each heating element (2) uses one or more liquid storage cavities (3);
or a plurality of heating elements (2) or all the heating elements (2) share one liquid storage cavity (3).
6. The evaporative cooling device for a current transformer according to claim 1, wherein:
the arrangement form of the liquid storage cavity (3) and the heat exchanger (6) comprises:
each liquid storage cavity (3) is independently connected with one heat exchanger (6) or simultaneously connected with a plurality of heat exchangers (6);
or a plurality of liquid storage cavities (3) are commonly connected with a heat exchanger (6).
7. The evaporative cooling device for a current transformer according to claim 1, wherein:
when the liquid storage cavity (3) is tightly adhered to the surface of the heating element (2), the liquid storage cavity (3) is a sealed cavity;
when the heating element (2) is partially or completely immersed in the liquid storage cavity (3), the liquid storage cavity (3) is a cavity with a window matched with the extending position of the heating element (2), and the window is sealed by a sealing ring or sealant to form a sealed cavity.
8. An evaporative cooling system for a converter, characterized in that:
comprising a frame structure (9), at least one current transformer (1) and at least one set of current transformer evaporative cooling devices according to any one of claims 1-7;
the converter (1) and the liquid storage cavity (3) are arranged in the frame structure (9); the heat exchanger is arranged on the main body of the frame structure (9) or is independently arranged outside the frame structure (9) through a heat exchanger supporting frame (10).
9. A current transformer evaporative cooling system as set forth in claim 8, wherein:
the arrangement form of the heat exchanger (6) between the converters (1) comprises:
each converter (1) is connected with a corresponding heat exchanger (6);
or a plurality of converters (1) are commonly connected with a common heat exchanger (6).
10. A current transformer evaporative cooling system as set forth in claim 8, wherein:
the frame structure (9) comprises a cabinet and an electric power container;
the arrangement of the heat exchanger (6) between the cabinets comprises:
each cabinet is connected with a corresponding heat exchanger (6);
or a plurality of cabinets are commonly connected with a common heat exchanger (6);
the arrangement of the heat exchanger (6) between the electric power containers comprises:
each electric power container is connected with a corresponding heat exchanger (6);
or a plurality of power containers are commonly connected with a common heat exchanger (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321501364.9U CN220493409U (en) | 2023-06-13 | 2023-06-13 | Evaporation cooling device and system for converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321501364.9U CN220493409U (en) | 2023-06-13 | 2023-06-13 | Evaporation cooling device and system for converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220493409U true CN220493409U (en) | 2024-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321501364.9U Active CN220493409U (en) | 2023-06-13 | 2023-06-13 | Evaporation cooling device and system for converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220493409U (en) |
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2023
- 2023-06-13 CN CN202321501364.9U patent/CN220493409U/en active Active
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