Wind power variable pitch battery heat dissipation support

Abstract

The utility model discloses a wind power variable pitch battery heat dissipation support which comprises a battery rack, a battery cavity used for installing a battery is formed in the battery rack, ventilation holes are formed in the battery rack, and a pressing plate used for pressing the upper portion of the battery is arranged on the battery rack. A heat dissipation plate used for making contact with the side wall of a battery is fixed to the battery rack, a cavity is formed in the heat dissipation plate, heat exchange liquid is contained in the cavity, a semiconductor chilling plate is attached to the outer wall of the heat dissipation plate, the temperature sensor is attached to the outer wall of the battery, and the battery rack is further provided with a controller. The temperature sensor and the semiconductor chilling plate are connected with the controller; according to the utility model, the heat dissipation plate which is in contact with the side wall of the battery is fixed on the battery rack, the heat dissipation plate is used for dissipating heat of the battery, and the semiconductor chilling plate is used for refrigerating the heat dissipation plate, so that active heat dissipation is realized, a better heat dissipation effect is achieved, and heat accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to wind power pitch control, in particular to a wind power pitch control battery heat dissipation bracket. Background Art

[0002] Currently, wind power generation is a key focus of renewable energy generation, and its implementation relies on wind turbines. The wind turbine pitch system is a crucial component of today's megawatt-class variable-speed, constant-frequency wind turbines, playing a crucial role in ensuring the safe, efficient, and stable operation of the turbines. Because turbines are installed in windy locations such as mountains, wilderness, beaches, and islands, they are subject to irregular wind changes and load fluctuations, as well as strong gusts. The pitch system controls the rotor speed and, in turn, the turbine's output power by controlling the blade angle. The wind turbine's pitch system relies on a backup power supply, ensuring continued operation in the event of a power outage, making it crucial for ensuring safe wind turbine pitch feathering. The backup power supply typically uses lead-acid batteries, which are installed in a battery box via a mounting bracket. However, existing brackets dissipate heat naturally, which can easily overheat in the summer, leading to short circuits and fires. Utility Model Content

[0003] In order to solve the defect in the prior art that the existing bracket dissipates heat naturally, which is easy to cause short circuit and fire in summer due to excessive temperature, the utility model provides a wind turbine pitch battery heat dissipation bracket.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The utility model provides a wind turbine variable pitch battery heat dissipation bracket, comprising a battery rack, wherein the battery rack is provided with a battery cavity for installing batteries, and the battery rack is provided with ventilation holes, and the battery rack is provided with a pressing plate for pressing the upper part of the battery, and a heat dissipation plate for contacting the side wall of the battery is fixed on the battery rack, a cavity is provided on the heat dissipation plate, and a heat exchange liquid is filled in the cavity, and a semiconductor refrigeration sheet is attached to the outer wall of the heat dissipation plate, and also includes a temperature sensor attached to the outer wall of the battery, and the battery rack is also provided with a controller, and the temperature sensor and the semiconductor refrigeration sheet are connected to the controller.

[0006] As an optimal technical solution of the present invention, the heating surface of the semiconductor refrigeration plate is provided with a heat dissipation box, and the heat dissipation box is provided with a heat dissipation cavity, the heat dissipation box is provided with an air inlet pipe and an air outlet pipe connected to the heat dissipation cavity, the air inlet pipe and the air outlet pipe are connected to the wind turbine hub, and the wind turbine hub is provided with a connecting pipe connected to the air inlet pipe and the air outlet pipe.

[0007] As a preferred technical solution of the present invention, heat collecting fins are provided on the inner wall of the heat dissipation cavity.

[0008] As a preferred technical solution of the present invention, a pressure regulating tank communicating with the cavity is provided on the heat dissipation plate.

[0009] As a preferred technical solution of the present invention, when the temperature sensor detects that the temperature is higher than 30 degrees, the semiconductor refrigeration chip works, and when the temperature sensor detects that the temperature is lower than 15 degrees, the semiconductor refrigeration chip stops working.

[0010] The beneficial effects of the utility model are:

[0011] This type of wind turbine variable pitch battery heat dissipation bracket fixes a heat dissipation plate on the battery rack to contact the side wall of the battery, uses the heat dissipation plate to dissipate heat from the battery, and uses a semiconductor refrigeration sheet to cool the heat dissipation plate. This active heat dissipation has a better heat dissipation effect and avoids heat accumulation. The heat generated by the semiconductor refrigeration sheet is dissipated to the outside through the heat exchange box, thus avoiding heat accumulation in the wind turbine hub, which may easily cause a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a structural diagram of a wind turbine pitch-controlled battery heat dissipation bracket of the utility model;

[0014] Figure 2 This is a schematic diagram of the heat dissipation box connection structure of a wind turbine pitch-controlled battery heat dissipation bracket of the utility model;

[0015] Figure 3 The utility model is a structural schematic diagram of a battery rack of a wind turbine pitch-variable battery heat dissipation bracket.

[0016] In the figure: 1. Battery rack; 2. Battery cavity; 3. Ventilation hole; 4. Press plate; 5. Heat sink; 6. Cavity; 7. Semiconductor refrigeration plate; 8. Temperature sensor; 9. Controller; 10. Heat sink box; 11. Heat sink cavity; 12. Air inlet pipe; 13. Upper cover; 14. Air outlet pipe; 15. Heat collecting fins; 16. Pressure regulating tank. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0018] Example: Figure 1 、 Figure 2、 Figure 3 As shown, the utility model is a wind turbine variable pitch battery heat dissipation bracket, including a battery rack 1, and the battery rack 1 is provided with a battery cavity 2 for installing a battery, and the battery rack 1 is provided with a ventilation hole 3, and the battery rack 1 is provided with a pressing plate 4 for pressing the upper part of the battery, and the battery rack 1 is fixed with a heat dissipation plate 5 for contacting the side wall of the battery, the heat dissipation plate 5 is provided with a cavity 6, and the cavity 6 is filled with heat exchange liquid, and the outer wall of the heat dissipation plate 5 is attached to a semiconductor refrigeration plate 7, and also includes a temperature sensor 8 attached to the outer wall of the battery, and the battery rack 1 is also provided with a controller 9, and the temperature sensor 8 and the semiconductor refrigeration plate 7 are connected to the controller 9. By fixing a heat sink 5 for contacting the side wall of the battery on the battery rack 1, the heat sink 5 is used to dissipate heat from the battery, and the semiconductor refrigeration sheet 7 is used to cool the heat sink 5, so that active heat dissipation is performed, thereby having a better heat dissipation effect and avoiding heat accumulation, and the heat generated by the semiconductor refrigeration sheet 7 is dissipated to the outside through the heat exchange box, thereby avoiding heat accumulation in the wind turbine hub, which is easy to cause a fire.

[0019] The heat-generating surface of the semiconductor cooling sheet 7 is provided with a heat dissipation housing 10, and a heat dissipation cavity 11 is provided in the heat dissipation housing 10. The heat dissipation housing 10 is provided with an air inlet pipe 12 and an air outlet pipe 14 that are connected to the heat dissipation cavity 11. The air inlet pipe 12 and the air outlet pipe 14 are connected to the wind turbine hub, and the wind turbine hub is provided with a connecting pipe that is connected to the air inlet pipe 12 and the air outlet pipe 14. When the wind turbine is operating, the blades rotate, generating airflow, which ventilates the heat dissipation housing 10 and dissipates the heat generated by the semiconductor cooling sheet 7 to the outside.

[0020] The inner wall of the heat dissipation cavity 11 is provided with heat collecting fins 16 to increase the heat exchange area, thereby ensuring a better heat exchange effect.

[0021] The heat sink 5 is provided with a pressure regulating tank connected to the cavity 6 for regulating the internal pressure.

[0022] Among them, when the temperature sensor 8 detects that the temperature is higher than 30 degrees, the semiconductor refrigeration chip 7 works. When the temperature sensor 8 detects that the temperature is lower than 15 degrees, the semiconductor refrigeration chip 7 stops working to avoid the occurrence of over-high or under-temperature phenomena.

[0023] During operation, this type of wind turbine pitch-varying battery heat dissipation bracket uses a heat dissipation plate 5 fixed on the battery rack 1 for contacting the battery side wall, uses the heat dissipation plate 5 to dissipate heat from the battery, and uses the semiconductor refrigeration plate 7 to cool the heat dissipation plate 5, thereby actively dissipating heat, thereby having a better heat dissipation effect and avoiding heat accumulation, and dissipating the heat generated by the semiconductor refrigeration plate 7 to the outside through the heat exchange box, thereby avoiding heat accumulation in the wind turbine hub, which may easily cause a fire.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wind turbine pitch battery heat dissipation bracket, characterized in that: The invention comprises a battery rack (1), wherein the battery rack (1) is provided with a battery cavity (2) for installing a battery, and the battery rack (1) is provided with ventilation holes (3), and the battery rack (1) is provided with a pressing plate (4) for pressing the upper part of the battery, and a heat sink (5) for contacting the side wall of the battery is fixed on the battery rack (1), the heat sink (5) is provided with a cavity (6), and the cavity (6) is filled with heat exchange fluid, and a semiconductor cooling plate (7) is attached to the outer wall of the heat sink (5), and further comprises a temperature sensor (8) attached to the outer wall of the battery, and the battery rack (1) is further provided with a controller (9), and the temperature sensor (8) and the semiconductor cooling plate (7) are connected to the controller (9).

2. A wind turbine pitch battery heat dissipation bracket according to claim 1, characterized in that: The heating surface of the semiconductor refrigeration plate (7) is provided with a heat dissipation box (10), and a heat dissipation cavity (11) is provided in the heat dissipation box (10). An air inlet pipe (12) and an air outlet pipe (14) communicating with the heat dissipation cavity (11) are provided on the heat dissipation box (10). The air inlet pipe (12) and the air outlet pipe (14) are connected to the wind turbine hub, and a connecting pipe communicating with the air inlet pipe (12) and the air outlet pipe (14) is provided on the wind turbine hub.

3. A wind turbine pitch battery heat dissipation bracket according to claim 2, characterized in that: Heat collecting fins are provided on the inner wall of the heat dissipation cavity (11).

4. A wind turbine pitch battery heat dissipation bracket according to claim 2, characterized in that: The heat dissipation plate (5) is provided with a pressure regulating tank connected to the cavity (6).

5. The wind turbine pitch-controlled battery heat dissipation bracket according to claim 1, characterized in that: When the temperature sensor (8) detects that the temperature is higher than 30 degrees, the semiconductor refrigeration chip (7) works, and when the temperature sensor (8) detects that the temperature is lower than 15 degrees, the semiconductor refrigeration chip (7) stops working.

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