Air-cooling heat dissipation device and wind power converter
By introducing heat dissipation fin assemblies and U-shaped heat pipe assemblies into wind power converters, the problem of insufficient heat dissipation of power modules in wind power converters is solved, achieving more efficient heat dissipation and heat distribution capabilities. This technology is suitable for air-cooled heat dissipation devices and wind power converters.
Patent Information
- Application Number
- CN202422721286.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In existing wind power converters, as the power of wind turbine generators increases, the heat dissipation problem of the power module has not been effectively solved, resulting in insufficient heat dissipation capacity.
The heat sink employs a combination of heat dissipation fins and U-shaped heat pipes, enhancing its heat dissipation capacity and efficiency. This includes a combination of high and low toothed heat dissipation fins and U-shaped heat pipes, along with an aluminum substrate and copper heat pipes, optimizing the airflow structure to reduce air resistance.
It improves the heat dissipation efficiency of the power module, avoids the problem of pipe expansion and bulging caused by the coolant freezing in ultra-low temperature environments, and enhances the overall heat dissipation performance and heat distribution capacity of the radiator.
Smart Images
Figure CN223553630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind power generation technology, and more specifically, to a wind power converter. Furthermore, this utility model also relates to a wind power converter including the aforementioned air-cooled heat dissipation device. Background Technology
[0002] In the application of wind power converters, the power modules inside the converter are the largest heat source during operation. As the wind power industry continues to develop and the power of wind turbines increases year by year, the converter is the key to grid connection of wind turbines. Among them, the power modules are the main components that enable the converter to realize the conversion function. With high-power wind power converters becoming the mainstream, the heat dissipation capacity and structural form of the power module heat sink are constantly being tested. At present, there is a lack of a power module heat sink that can improve the heat dissipation problem of the power module with the increasing heat generation as the power of wind power converters continues to increase.
[0003] In conclusion, how to improve the heat dissipation power of radiators is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide an air-cooled heat dissipation device, which enhances the heat dissipation and heat distribution capabilities of the heat sink by using heat dissipation fin assembly and U-shaped heat pipe assembly to distribute heat evenly and dissipate heat from the top and bottom of the power module.
[0005] Another objective of this invention is to provide a wind power converter that includes the aforementioned air-cooled heat dissipation device.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A wind-cooled heat dissipation device, comprising:
[0008] The substrate has a plate-like structure and is used to mount the power module.
[0009] A heat dissipation fin assembly is disposed on the first end face of the substrate, and the heat dissipation fin assembly is used to improve the heat dissipation efficiency of the power module;
[0010] The heat dissipation pipe assembly has a U-shaped structure and is located on the second end face of the substrate to improve the heat dissipation efficiency of the power module.
[0011] Preferably, the heat dissipation pipe assembly includes a first U-shaped embedded pipe and a second U-shaped embedded pipe, the second U-shaped embedded pipe being disposed on the inner circumference of the first U-shaped embedded pipe, and the openings of the second U-shaped embedded pipe and the first U-shaped embedded pipe having the same orientation.
[0012] Preferably, the heat dissipation pipe assembly further includes two short embedded pipes, which are respectively disposed on the inner periphery of the two ends of the second U-shaped embedded pipe, and the ends of the first U-shaped embedded pipe, the second U-shaped embedded pipe, and the short embedded pipes are aligned.
[0013] Preferably, the heat dissipation fin assembly includes a plurality of high and low toothed heat dissipation fins, which are arranged parallel to each other. The high and low toothed heat dissipation fins are arranged in a stepped shape, with the low teeth of the high and low toothed heat dissipation fins located at the front end of the air inlet direction of the air duct and the high teeth of the high and low toothed heat dissipation fins located at the rear end of the air inlet direction of the air duct.
[0014] Preferably, the heat dissipation pipe assembly is provided in multiple ways and is evenly arranged along the length of the air duct, and each power module is correspondingly provided with one heat dissipation pipe assembly.
[0015] Preferably, the power modules are arranged in two rows, and both rows of power modules are arranged parallel to the air inlet direction of the air duct.
[0016] Preferably, the substrate is an aluminum assembly, and the heat dissipation pipe assembly is a copper assembly.
[0017] A wind power converter includes an air-cooled heat dissipation device, wherein the air-cooled heat dissipation device is any of the air-cooled heat dissipation devices described above.
[0018] This utility model provides an air-cooled heat dissipation device. The base plate of the air-cooled heat dissipation device is provided with heat dissipation fin assembly and heat dissipation pipe assembly on both sides. The heat dissipation fin assembly can expand the air intake channel in the inverter, reduce the overall wind resistance of the heat dissipation device, alleviate the problem of uneven heat dissipation, and enhance the heat dissipation performance. The heat dissipation pipe assembly has a U-shaped structure, which prevents the coolant in the heat dissipation pipe from freezing in the direction of gravity and expanding in volume due to ultra-low temperature environment, thus preventing the pipe end from expanding and bulging. This can enhance the heat dissipation capability of the heat dissipation device for the power module and enhance the heat dissipation capability of the power module. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the air-cooled heat dissipation device provided by this utility model.
[0021] Figure 2This is a schematic diagram of the heat sink assembly provided by this utility model;
[0022] Figure 3 This is a front view of the air-cooled heat dissipation device provided by this utility model;
[0023] Figure 4 This is a structural schematic diagram of the air-cooled heat dissipation device and power module assembly provided by this utility model.
[0024] Figure label:
[0025] 1-Heat dissipation fin assembly; 2-Baseboard; 3-Heat dissipation pipe assembly; 31-First U-shaped embedded pipe; 32-Second U-shaped embedded pipe; 33-Short embedded pipe; 34-Strip embedded pipe; 4-Power module. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] The core of this invention is to provide an air-cooled heat dissipation device that provides better heat dissipation for power modules.
[0028] Another core aspect of this invention is to provide a wind power converter that includes the aforementioned air-cooled heat dissipation device.
[0029] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", and "rear" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of this application and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0030] This application provides an air-cooled heat dissipation device, comprising: a heat dissipation fin assembly 1, a substrate 2, and a heat pipe assembly 3;
[0031] Among them, the substrate 2 is a plate-shaped structure, and the substrate 2 is used to mount the power module 4;
[0032] The heat dissipation fin assembly 1 is disposed on the first end face of the substrate 2, and the heat dissipation fin assembly 1 is used to improve the heat dissipation efficiency of the power module 4.
[0033] The heat pipe assembly 3 has a U-shaped structure and is located on the second end face of the substrate 2 to improve the heat dissipation efficiency of the power module 4.
[0034] For details, please refer to the appendix. Figure 1 The substrate 2 has a plate-like structure. The heat dissipation fin assembly 1 and the heat dissipation pipe assembly 3 are respectively disposed on both sides of the substrate 2. More specifically, the heat dissipation fin assembly 1 is disposed on the back side of the substrate 2, and the heat dissipation pipe assembly 3 is disposed on the front side of the substrate 2. The heat dissipation pipe assembly 3 is a U-shaped assembly. The heat dissipation pipe assembly 3 contains coolant. The U-shaped structure can prevent the coolant in the heat dissipation pipe from freezing in the direction of gravity and expanding in volume due to ultra-low temperature environment, which would cause the end of the heat dissipation pipe to expand and bulge. At the same time, it can enhance the heat dissipation and heat dissipation capacity of the heat dissipation pipe assembly 3 to the top of the power module 4. Combined with the heat dissipation fin assembly 1 (the working principle of the heat dissipation fin assembly 1 is the same as that of the fins), it can achieve better results.
[0035] Based on the above embodiments, the heat dissipation pipe assembly 3 includes a first U-shaped embedded pipe 31 and a second U-shaped embedded pipe 32. The second U-shaped embedded pipe 32 is disposed on the inner periphery of the first U-shaped embedded pipe 31, and the openings of the second U-shaped embedded pipe 32 and the first U-shaped embedded pipe 31 have the same orientation.
[0036] For details, please refer to the appendix. Figure 1 Both the first U-shaped buried pipe 31 and the second U-shaped buried pipe 32 are U-shaped structures. The size of the first U-shaped buried pipe 31 should be larger than that of the second U-shaped buried pipe 32, and the second U-shaped buried pipe 32 is set on the inner circumference of the first U-shaped buried pipe 31. The opening direction of both is upward. The design of the first U-shaped buried pipe 31 can enhance the heat dissipation capability of the top and bottom of the power module 4, and the design of the second U-shaped buried pipe 32 can enhance the heat dissipation capability of the top of the power module 4.
[0037] Based on the above embodiments, the heat dissipation pipe assembly 3 also includes two short buried pipes 33, and the two short buried pipes 33 are respectively disposed on the inner periphery of the two ends of the second U-shaped buried pipe 32. The ends of the first U-shaped buried pipe 31 and the second U-shaped buried pipe 32 are aligned with the ends of the short buried pipes 33.
[0038] For details, please refer to the appendix. Figure 3 Generally, the inner circumference of the second U-shaped buried pipe 32 is provided with two short buried pipes 33. The two short buried pipes 33 are set vertically to fit the second U-shaped buried pipe 32. The setting of the short buried pipes 33 can enhance the heat dissipation capacity of the top of the power module 4. Because the bottom space of the first U-shaped buried pipe 31 and the second U-shaped buried pipe 32 is large, the pipe will not bulge after the coolant inside the pipe freezes and solidifies, thus preventing the pipe from not fitting properly with the power module 4 to achieve a good heat dissipation effect. Because the coolant inside the short buried pipes 33 is limited, the pipe will not bulge after the coolant inside the pipe freezes and solidifies.
[0039] Based on the above embodiments, the heat dissipation fin assembly 1 includes a plurality of high and low tooth heat dissipation fins, which are arranged in parallel to each other. The high and low tooth heat dissipation fins are arranged in a stepped shape, and the low teeth of the high and low tooth heat dissipation fins are arranged at the front end of the air inlet direction of the air duct, while the high teeth of the high and low tooth heat dissipation fins are arranged at the rear end of the air inlet direction of the air duct.
[0040] For details, please refer to the appendix. Figure 2 The high and low toothed heat dissipation fins consist of two parts of different heights to form a stepped structure. The number of high and low toothed heat dissipation fins depends on the size of the substrate 2 and must completely cover the first end face of the substrate 2. Please refer to the attached diagram. Figure 4 The high and low toothed heat dissipation fins are placed horizontally along the substrate 2, and the airflow direction is also as shown in the attached figure. Figure 4 As shown by the arrows, the lower teeth of the high-low toothed heat sink fins are located at the front end of the air intake direction of the air duct, and the higher teeth are located at the rear end of the air intake direction of the air duct. This expands the air intake duct in the converter, reduces the overall air resistance of the heat sink when using a long heat sink substrate for multiple parallel power modules, alleviates the problem of uneven heat dissipation of multiple parallel power modules, and enhances heat dissipation performance.
[0041] Optionally, the high and low toothed heat dissipation fins are generally made of copper or aluminum sheets, which have good heat dissipation capabilities.
[0042] Based on the above embodiments, multiple heat pipe assemblies 3 are provided and evenly arranged along the length of the air duct, and each power module 4 is correspondingly set with one heat pipe assembly 3.
[0043] Specifically, each heat pipe assembly 3 includes a first U-shaped buried pipe 31, a second U-shaped buried pipe 32 and a short buried pipe 33. Generally, multiple power modules 4 are provided on the substrate 2, and each power module 4 is correspondingly provided with a heat pipe assembly 3, which can ensure that each power module 4 can be fully cooled.
[0044] Based on the above embodiment, the power module 4 is arranged in two rows, and both rows of power modules 4 are arranged parallel to the air inlet direction of the air duct.
[0045] For details, please refer to the appendix. Figure 4 The row of power modules 4 distributed in the upper half of the substrate 2 is more dense and generates more heat. The arrangement of the first U-shaped buried pipe 31 and the second U-shaped buried pipe 32 allows the power modules 4 at the top of the substrate 2 to have a larger contact area with the heat sink and better heat dissipation. The row of power modules 4 distributed in the lower half of the substrate 2 is more dispersed and generates less heat. The use of the first U-shaped buried pipe 31 to dissipate heat from the power modules 4 in the lower half of the substrate 2 makes full use of the structure of the first U-shaped buried pipe 31, making the heat sink more cost-effective.
[0046] Based on the above embodiments, the substrate 2 is an aluminum component and the heat dissipation pipe assembly 3 is a copper component.
[0047] Specifically, aluminum and copper are both materials with high thermal conductivity. The substrate 2 is made of aluminum, and the heat dissipation pipe assembly 3 is made of copper, which can ensure that the entire heat dissipation device has excellent heat dissipation performance and also has a cost advantage.
[0048] In addition to the aforementioned air-cooled heat dissipation device, this utility model also provides a wind power converter that includes the air-cooled heat dissipation device disclosed in the above embodiments. For the structure of other parts of the wind power converter, please refer to the prior art, which will not be repeated here.
[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0050] The present invention provides a detailed description of an air-cooled heat dissipation device and a wind power converter. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
Claims
1. A wind-cooled heat dissipation device, characterized in that, include: The substrate (2) is a plate-shaped structure, and the substrate (2) is used to mount the power module (4). A heat dissipation fin assembly (1) is disposed on the first end face of the substrate (2), and the heat dissipation fin assembly (1) is used to improve the heat dissipation efficiency of the power module (4); The heat dissipation pipe assembly (3) has a U-shaped structure. The heat dissipation pipe assembly (3) is located on the second end face of the substrate (2) and is used to improve the heat dissipation efficiency of the power module (4).
2. The air-cooled heat dissipation device according to claim 1, characterized in that, The heat dissipation pipe assembly (3) includes a first U-shaped embedded pipe (31) and a second U-shaped embedded pipe (32). The second U-shaped embedded pipe (32) is disposed on the inner circumference of the first U-shaped embedded pipe (31), and the openings of the second U-shaped embedded pipe (32) and the first U-shaped embedded pipe (31) are oriented in the same direction.
3. The air-cooled heat dissipation device according to claim 2, characterized in that, The heat dissipation pipe assembly (3) also includes two short buried pipes (33), and the two short buried pipes (33) are respectively located on the inner periphery of the two ends of the second U-shaped buried pipe (32). The ends of the first U-shaped buried pipe (31), the second U-shaped buried pipe (32) and the short buried pipe (33) are aligned.
4. The air-cooled heat dissipation device according to claim 3, characterized in that, The heat dissipation fin assembly (1) includes a plurality of high and low tooth heat dissipation fins, which are arranged in parallel to each other. The high and low tooth heat dissipation fins are arranged in a stepped shape, and the low tooth of the high and low tooth heat dissipation fins is located at the front end of the air inlet direction of the air duct, and the high tooth of the high and low tooth heat dissipation fins is located at the rear end of the air inlet direction of the air duct.
5. The air-cooled heat dissipation device according to claim 4, characterized in that, The heat dissipation pipe assembly (3) is provided in multiple ways and is evenly arranged along the length of the air duct. Each power module (4) is corresponding to one heat dissipation pipe assembly (3).
6. The air-cooled heat dissipation device according to claim 5, characterized in that, The power modules (4) are arranged in two rows, and both rows of power modules (4) are arranged parallel to the air inlet direction of the air duct.
7. The air-cooled heat dissipation device according to any one of claims 1 to 6, characterized in that, The substrate (2) is an aluminum component, and the heat sink assembly (3) is a copper component.
8. A wind power converter, comprising an air-cooled heat dissipation device, characterized in that, The air-cooled heat dissipation device is the air-cooled heat dissipation device as described in any one of claims 1 to 7.