Self-power-generation brake device of wind driven generator

Abstract

The utility model relates to a self-power-generation braking device of a wind driven generator, and belongs to the technical field of self-power-generation braking systems of wind driven generators. The self-power-generation braking device comprises a generator shell, a shell end cover is arranged on the generator shell, and a brake and a generator main shaft are arranged in the generator shell; and a finished stator is fixedly mounted in the generator shell. According to the self-power-generation brake device of the wind driven generator, a group of finished stators are independently added in the generator shell, the brake battery is charged through the charging controller by utilizing the electric energy generated by the finished stators, the brake controller can stably work for a long time, and the generated electric energy can be supplied to the cooling fan for operation; interaction of air inside and outside the generator shell is accelerated through the continuously-running cooling fan, so that the cooling effect is improved, dust is isolated through the dustproof net in the dustproof frame, and then a finished stator in the generator shell is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of self - generating braking systems for wind turbines, and specifically relates to a self - generating braking device for a wind turbine. Background Technique

[0002] The self - generating braking system of a wind turbine, also known as a braking system, is a crucial component in wind power generation equipment. The wind turbine brake usually consists of brake pads, a brake disc, and a power source. The self - generating braking systems of small wind turbines on the market are generally driven by direct current 12V / 24V, and all require an energy storage battery or an external power source for power supply. Considering the service life of the energy storage battery and the inconvenience caused by frequent charging, a switching power supply DC12V / 24V to AC220V mains power supply is usually adopted. Therefore, a stable mains input or an energy storage battery is required to provide power to ensure that the braking system of the wind turbine can work properly in extreme weather, so as to ensure the safe and stable operation of the wind turbine.

[0003] In the current prior art, wind turbines are installed in rarely - visited areas for monitoring and emergency lighting. There is no condition for accessing external power sources on site, and they are in an unattended state for a long time after installation. After the power of the power source is consumed, the self - generating braking system of the wind turbine cannot operate stably. Therefore, a self - generating braking device for a wind turbine is proposed to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a self - generating braking device for a wind turbine, which has the advantages of ensuring that the brake controller can work stably for a long time, etc., and solves the problem that wind turbines are installed in rarely - visited areas for monitoring and emergency lighting, there is no condition for accessing external power sources on site, and they are in an unattended state for a long time after installation. After the power of the power source is consumed, the self - generating braking system of the wind turbine cannot operate stably.

[0005] To achieve the above object, the utility model provides the following technical solution: A self - generating braking device for a wind turbine, including a generator housing, an outer shell end cover is arranged on the generator housing, and a brake and a generator main shaft are arranged inside the generator housing;

[0006] A finished stator is fixedly installed inside the generator housing, a temperature sensor is fixedly installed on the finished stator, a brake controller for controlling the brake is connected outside the generator housing, a brake battery and a charging controller are connected outside the generator housing, a mounting seat is fixedly connected outside the generator housing, a push - rod motor is fixedly installed on the mounting seat, the brake controller is electrically connected to the push - rod motor, and a heat - dissipation structure is arranged on the generator housing.

[0007] Furthermore, the heat dissipation structure includes a mounting frame installed on the outer surface of the generator housing. A heat dissipation fan is fixedly installed inside the mounting frame. A dust-proof frame for isolating dust is fixedly installed on the mounting frame. An installation component for connecting the mounting frame is installed on the outer surface of the generator housing.

[0008] Furthermore, the generator housing and the housing end cover are fixedly connected. The brake is fixedly installed inside the generator housing. One end of the generator main shaft penetrates and extends into the inside of the brake.

[0009] Furthermore, the brake controller is electrically connected to the brake battery. The brake battery is electrically connected to the charging controller. The brake controller and the charging controller are respectively electrically connected to the finished stator.

[0010] Furthermore, the dust-proof frame includes a rectangular frame and a dust-proof net. The dust-proof net is fixedly installed inside the rectangular frame. The rectangular frame is inserted into the mounting frame. A locking bolt is installed on the rectangular frame, with one end penetrating and extending into the inside of the mounting frame and being threadedly connected to the mounting frame.

[0011] Furthermore, the installation component includes a connecting plate and installation bolts. The connecting plate is fixedly installed on both the left and right sides of the mounting frame. One end of the installation bolt penetrates the connecting plate and extends into the inside of the generator housing and is threadedly connected to the generator housing.

[0012] Furthermore, the number of the heat dissipation structures is two. The two heat dissipation structures are respectively installed on the top and bottom of the generator housing.

[0013] Furthermore, a plurality of circular heat dissipation holes are formed on both the top and bottom of the generator housing.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] In the self-powered braking device of the wind turbine, by separately adding a set of finished stators inside the generator housing, the electric energy generated by this finished stator is used to charge the brake battery through the charging controller, ensuring the long-term stable operation of the brake controller. Moreover, the generated electric energy can be used to supply the operation of the heat dissipation fan. The continuously operating heat dissipation fan accelerates the air interaction inside and outside the generator housing, thereby improving the heat dissipation effect. And the dust-proof net in the dust-proof frame is used to isolate dust, thereby protecting the finished stator inside the generator housing, enhancing the practicability of the self-powered braking device of the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 Structural schematic diagram of the present utility model Figure 1 and enlarged view at position A in the figure;

[0018] Figure 3 is a three-dimensional schematic diagram of the installation frame and dust-proof frame of the structure of the present utility model.

[0019] In the figure: 1, generator housing; 2, housing end cover; 3, generator main shaft; 4, brake; 5, finished stator; 6, temperature sensor; 7, brake controller; 8, brake battery; 9, charging controller; 10, push rod motor; 11, mounting seat; 12, mounting frame; 13, cooling fan; 14, dust-proof frame; 15, mounting component. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than 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 efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 3 , in a self-powered braking device for a wind turbine in this embodiment, it includes a generator housing 1, a housing end cover 2 is arranged on the generator housing 1, a brake 4 and a generator main shaft 3 are arranged inside the generator housing 1, the generator housing 1 and the housing end cover 2 are fixedly connected, the brake 4 is fixedly installed inside the generator housing 1, and one end of the generator main shaft 3 penetrates and extends into the inside of the brake 4.

[0022] Embodiment 1: Please refer to Figures 1 to 3 , in this example implementation, a finished stator 5 is fixedly installed inside the generator housing 1, a temperature sensor 6 is fixedly installed on the finished stator 5, a brake controller 7 for controlling the brake 4 is connected outside the generator housing 1, a brake battery 8 and a charging controller 9 are connected outside the generator housing 1, a mounting seat 11 is fixedly connected outside the generator housing 1, a push rod motor 10 is fixedly installed on the mounting seat 11, the brake controller 7 is electrically connected to the push rod motor 10, a heat dissipation structure is arranged on the generator housing 1, the number of the heat dissipation structures is two, and the two heat dissipation structures are respectively installed on the top and bottom of the generator housing 1 to facilitate heat dissipation inside the generator housing 1, and a plurality of circular heat dissipation holes are opened on both the top and bottom of the generator housing 1 to facilitate the interaction of air inside and outside the generator housing 1.

[0023] Among them, the brake controller 7 is electrically connected to the brake battery 8, the brake battery 8 is electrically connected to the charging controller 9, and the brake controller 7 and the charging controller 9 are respectively electrically connected to the finished stator 5. Furthermore, by separately adding a set of finished stators 5 inside the generator housing 1, the electric energy generated by this finished stator 5 is used to charge the brake battery 8 through the charging controller 9, ensuring that the brake controller 7 can work stably for a long time.

[0024] With the above technical solution, it is realized that the electric energy generated by the added finished stator 5 is used to charge the brake battery 8 through the charging controller 9, ensuring that the brake controller 7 can work stably for a long time, and the electric energy generated can be used to supply the operation of the cooling fan 13.

[0025] Embodiment 2: Please refer to Figures 1 to 3 , in the implementation of this example, there is a heat dissipation structure including a mounting frame 12 installed on the outer surface of the generator housing 1. A cooling fan 13 is fixedly installed inside the mounting frame 12. A dust-proof frame 14 for isolating dust is fixedly installed on the mounting frame 12. The dust-proof frame 14 includes a rectangular frame and a dust-proof net. The dust-proof net is fixedly installed inside the rectangular frame. The rectangular frame is inserted into the mounting frame 12. A locking bolt is installed on the rectangular frame and penetrates through and extends to the inside of the mounting frame 12 and is threadedly connected to the mounting frame 12, which is convenient for isolating dust. An installation component 15 for connecting the mounting frame 12 is installed on the outer surface of the generator housing 1, which is convenient for installing the mounting frame 12 on the outer surface of the generator housing 1.

[0026] Among them, the installation component 15 includes a connecting plate and installation bolts. The connecting plate is fixedly installed on the left and right sides of the mounting frame 12. One end of the installation bolt penetrates through the connecting plate and extends to the inside of the generator housing 1 and is threadedly connected to the generator housing 1, which is convenient for the installation of two heat dissipation structures.

[0027] With the above technical solution, it is realized that the electric energy generated is used to supply the operation of the cooling fan 13. The continuously operating cooling fan 13 is used to accelerate the interaction of air inside and outside the generator housing 1, thereby improving the heat dissipation effect, and the dust-proof net in the dust-proof frame 14 is used to isolate dust, and then the finished stator 5 inside the generator housing 1 is protected.

[0028] The working principle of the above embodiment is:

[0029] The self-powered braking device of the wind turbine. When the wind turbine absorbs wind energy through the blades and converts it into mechanical energy for the rotation of the generator rotor, the rotor rotates to cut the magnetic induction lines to generate electric energy. By separately adding a set of finished stators 5 inside the generator housing 1, the electric energy generated by the finished stators 5 is used to charge the braking battery 8 through the charging controller 9 to ensure the long-term stable operation of the braking controller 7. Moreover, the generated electric energy can be used to supply the operation of the cooling fan 13. The continuously operating cooling fan 13 is used to accelerate the air exchange inside and outside the generator housing 1, thereby improving the heat dissipation effect. And the dustproof net in the dustproof frame 14 is used to isolate dust, and further protect the finished stators 5 inside the generator housing 1.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-powered braking device for a wind turbine, comprising a generator housing (1), characterized in that: A housing end cover (2) is provided on the generator housing (1), and a brake (4) and a generator main shaft (3) are arranged inside the generator housing (1). A finished stator (5) is fixedly installed inside the generator housing (1), a temperature sensor (6) is fixedly installed on the finished stator (5), a brake controller (7) for controlling the brake (4) is connected to the outside of the generator housing (1), a brake battery (8) and a charging controller (9) are connected to the outside of the generator housing (1), a mounting seat (11) is fixedly connected to the outside of the generator housing (1), a push rod motor (10) is fixedly installed on the mounting seat (11), the brake controller (7) is electrically connected to the push rod motor (10), and a heat dissipation structure is provided on the generator housing (1).

2. The self-powered braking device for a wind turbine according to claim 1, characterized in that: The heat dissipation structure includes a mounting frame (12) installed on the outer surface of the generator housing (1), a heat dissipation fan (13) is fixedly installed inside the mounting frame (12), a dust-proof frame (14) for isolating dust is fixedly installed on the mounting frame (12), and a mounting component (15) for connecting the mounting frame (12) is installed on the outer surface of the generator housing (1).

3. The self-powered braking device for a wind turbine according to claim 1, characterized in that: The generator housing (1) and the housing end cover (2) are fixedly connected, the brake (4) is fixedly installed inside the generator housing (1), and one end of the generator main shaft (3) penetrates and extends into the inside of the brake (4).

4. The self-powered braking device for a wind turbine according to claim 1, wherein: The brake controller (7) is electrically connected to the brake battery (8), the brake battery (8) is electrically connected to the charging controller (9), and the brake controller (7) and the charging controller (9) are respectively electrically connected to the finished stator (5).

5. The self-powered braking device of a wind turbine according to claim 2, wherein: The dust-proof frame (14) includes a rectangular frame and a dust-proof net, the dust-proof net is fixedly installed inside the rectangular frame, the rectangular frame is inserted into the mounting frame (12), and a locking bolt is installed on the rectangular frame and penetrates and extends into the inside of the mounting frame (12) and is threadedly connected to the mounting frame (12).

6. The self-powered braking device of a wind turbine according to claim 2, characterized in that: The mounting component (15) includes a connecting plate and mounting bolts, the connecting plate is fixedly installed on the left and right sides of the mounting frame (12), and one end of the mounting bolts penetrates the connecting plate and extends into the inside of the generator housing (1) and is threadedly connected to the generator housing (1).

7. The self-powered braking device of a wind turbine according to claim 1, characterized in that: The number of the heat dissipation structures is two, and the two heat dissipation structures are respectively installed on the top and bottom of the generator housing (1).

8. The self-powered braking device for a wind turbine according to claim 1, characterized in that: A plurality of circular heat dissipation holes are formed in both the top and bottom of the generator housing (1).

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