Current collection device and wind power generation equipment

Abstract

The current collection device comprises a stator mechanism, the stator mechanism comprises a plurality of stator assemblies, each stator assembly comprises a plurality of stator rings, a plurality of stator supporting rods and a plurality of stator busbars, each stator ring is provided with a plurality of stator holes, the stator supporting rods are fixedly connected below the stator rings, and the stator busbars are fixedly connected below the stator rings. A plurality of stator busbars are fixedly connected below the stator ring through the stator holes; one side, opposite to the stator supporting rod, of each stator ring is provided with an electric shock surface, a rotor assembly is rotationally connected with the stator assembly, so that the electric conduction surfaces abut against the electric shock surfaces for conduction, and the electric conduction mode suitable for the fan yaw field can effectively reduce the carbon powder accumulation problem, and is high in stability, simple, convenient, long in service life, easy to overhaul and suitable for the fan yaw field.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a power collection device and a wind power generation equipment. Background Technology

[0002] During wind turbine operation, to maximize power generation efficiency, it is necessary to ensure that the center of the fan blades and rotor are always aligned with the direction of the wind. Therefore, they rotate continuously around the tower axis to adjust and enable the wind turbine to transmit electrical energy. Currently, wind turbines use yaw collector rings for power transmission. When the collector rings are working, the friction of the upper brushes continuously generates carbon dust that falls and accumulates at the contact surface of the lower brushes. If the carbon dust is not cleaned regularly, it will cause heat dissipation problems of the brushes, leading to frequent overheating and abnormal shutdowns. This requires the unit personnel to come and replace and repair the equipment, resulting in high labor costs, affecting wind power generation efficiency, and posing a safety hazard of sudden shutdown in strong winds.

[0003] Therefore, a new type of current collection device is needed that is not prone to carbon dust accumulation during wind turbine yaw, is easy to maintain, has low cost, and has sufficient safety performance. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model proposes a current collection device and wind power generation equipment suitable for the yaw field of wind turbines, which has the advantages of effectively reducing carbon powder accumulation, high stability, simplicity and convenience, long service life and easy maintenance.

[0005] To achieve the above objectives, this utility model proposes a current collection device for wind power generation, the current collection device comprising:

[0006] A stator mechanism, comprising a plurality of stator assemblies, each stator assembly including a plurality of stator rings, a plurality of stator support rods, and a plurality of stator busbars. Each stator ring has a plurality of stator holes. The plurality of stator support rods are fixedly connected to the lower part of the stator ring, and the plurality of stator busbars are fixedly connected to the lower part of the stator ring through the stator holes. Each stator ring has a contact surface on the side facing away from the stator support rods.

[0007] A rotor mechanism, comprising a plurality of rotor assemblies, each rotor assembly comprising a plurality of rotor rings, a plurality of conductive components and a plurality of rotor busbars, each rotor ring having a plurality of rotor holes, the plurality of rotor busbars being fixedly connected above the rotor rings through the rotor holes, the plurality of conductive components being fixedly connected to the side of the rotor rings facing the stator rings, and each rotor ring having a conductive surface on the side facing the stator rings.

[0008] In this configuration, one of the rotor assemblies is rotatably connected to one of the stator assemblies, such that the conductive surface abuts against the contact surface to conduct electricity.

[0009] Preferably, the stator mechanism includes a plurality of stator components, each stator component including a plurality of concentric and spaced stator rings;

[0010] The rotor mechanism includes a plurality of rotor assemblies, each rotor assembly including a plurality of concentric and spaced rotor rings, and a plurality of grooves on the side of the rotor ring facing the stator ring, the plurality of grooves being spaced apart along the tangent direction of the outer periphery of the rotor ring.

[0011] Preferably, the conductive component includes a conductive element, a dust removal brush, several elastic elements, and several conductive cables. Each conductive element is disposed in each groove of the rotor ring, and the side of the conductive element away from the groove abuts against the stator ring. The conductive cables are fixedly connected to the outer circumferential surface of the rotor ring, and one end of the conductive cable away from the rotor ring is fixedly connected to the conductive element. Several pressure grooves are formed on the side of the conductive element facing the groove. Each elastic element is disposed in each pressure groove and elastically abuts against the rotor ring and the conductive element. The dust removal brush is fixedly connected to the side of the rotor ring facing the stator ring and abuts against the stator ring.

[0012] Preferably, the dust removal brush includes an L-shaped fixing plate and brush bristles. The L-shaped fixing plate includes a fixing plate and a baffle. The fixing plate is fixedly connected to the side of the rotor ring facing the stator ring. The baffle abuts against the side of the conductive element. The brush bristles are fixedly connected to the side of the fixing plate facing away from the rotor ring. The end of the brush bristles away from the fixing plate abuts against the stator ring.

[0013] Preferably, the cross-sectional area of ​​each conductive surface is equal;

[0014] And / or, the cross-sectional area of ​​each of the aforementioned contact surfaces is equal;

[0015] And / or, a stator ring of one stator assembly and two adjacent stator rings of another stator assembly are arranged alternately vertically; a rotor ring of one rotor assembly and two adjacent rotor rings of another rotor assembly are arranged alternately vertically.

[0016] This utility model also provides wind power generation equipment, including:

[0017] Tower;

[0018] The nacelle is connected to the tower, and a generator is installed inside the nacelle; and

[0019] The current collector as described in any of the preceding claims is located in the engine room and connected to the generator.

[0020] The beneficial effects of this utility model are:

[0021] The current collection device of this utility model is used for wind power generation. It includes a stator mechanism and a rotor mechanism. The stator mechanism includes several stator assemblies, and the rotor mechanism includes several rotor assemblies. Each stator assembly includes several stator rings, several stator support rods, and several stator busbars. The stator support rods support the stator rings, increasing the creepage distance and heat dissipation space, and improving electrical insulation performance. This effectively avoids creepage or electrical breakdown during high current transmission, ensuring the stability and safety of the stator assembly. The rotor assembly includes several rotor rings, several conductive components, and several rotor busbars. The electrical energy generated during wind turbine power generation is transmitted through... The rotor busbar reaches the rotor ring, and contact conductivity is achieved through the contact of the conductive components. Then, it passes through the stator ring and stator busbar to the bottom of the wind turbine and is stored. During the operation of the wind turbine, when the wind turbine yaw is adjusted to the direction of maximum wind force, the rotor mechanism, as the follower part, always rotates synchronously with the nacelle. The stator mechanism, as the stationary part, uses a copper ring for dynamic current collection. The use of follower rotation current collection and conductive components for dynamic current collection replaces the original cable twisting device, eliminating the risk of cable entanglement and cable wear problems. It improves the heat dissipation performance of the current collection device and the stability of the overall structure, saves design and manufacturing costs, and is safer and more reliable. Attached Figure Description

[0022] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the current collector structure according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the rotor mechanism and stator mechanism according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of a current collector loop assembly according to an embodiment of the present invention;

[0026] Figure 4 This is a cross-sectional view of a current collector according to an embodiment of the present invention;

[0027] Figure 5 This is a top view of a current collector loop assembly according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the installation of a current collector according to an embodiment of the present invention;

[0029] Figure 7 for Figure 6 Schematic diagram of the structure at point A;

[0030] Figure 8 This is a schematic diagram of the installation of a conductive component and a conductive cable according to an embodiment of the present invention.

[0031] Figure 9 This is a top view of the rotor ring according to an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the installation of the conductive component according to an embodiment of the present invention;

[0033] Figure 11 This is a schematic diagram of a dust removal brush structure according to an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of a dust removal brush structure according to an embodiment of the present invention.

[0035] Explanation of icon numbers

[0036] 1. First ring assembly; 11. Stator mechanism; 111. Stator ring; 112. Support rod; 113. Stator busbar; 12. Rotor mechanism; 121. Rotor ring; 122. Conductive component; 1221. Conductive element; 12211. Pressure groove; 1222. Dust removal brush; 12221. L-shaped fixing plate; 122211. Fixing plate; 122212. Baffle; 12222. Brush bristles; 1223. Elastic element; 1224. Conductive cable; 123. Rotor busbar; 124. Rotor hole; 2. Second ring assembly; 3. Third ring assembly; 4. Fourth ring assembly; 5. Fifth ring assembly; 6. Sixth ring assembly.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] 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.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure), and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific way. Therefore, they should not be construed as limitations on this utility model. If the specific posture changes, the directional indication will also change accordingly.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] During wind turbine operation, to maximize power generation efficiency, it is necessary to ensure that the center of the fan blades and rotor are always aligned with the direction of the wind. Therefore, they rotate continuously around the tower axis to adjust and enable the wind turbine to transmit electrical energy. Currently, wind turbines use yaw collector rings for power transmission. When the collector rings are working, the friction of the upper brushes continuously generates carbon dust that falls and accumulates at the contact surface of the lower brushes. If the carbon dust is not cleaned regularly, it will cause heat dissipation problems of the brushes, leading to frequent overheating and abnormal shutdowns. This requires the unit personnel to come and replace and repair the equipment, resulting in high labor costs, affecting wind power generation efficiency, and posing a safety hazard of sudden shutdown in strong winds.

[0042] Therefore, a new type of current collection device is needed that is not prone to carbon dust accumulation during wind turbine yaw, is easy to maintain, has low cost, and has sufficient safety performance.

[0043] This utility model proposes a current collection device and wind power generation equipment suitable for the yaw field of wind turbines, which has the advantages of effectively reducing carbon powder accumulation, high stability, simplicity and convenience, long service life and easy maintenance.

[0044] Please see Figure 1 , Figure 2 and Figure 3The present invention proposes a current collection device for wind power generation. The current collection device includes: a stator mechanism 11, which comprises several stator assemblies. Each stator assembly includes several stator rings 111, several stator support rods 112, and several stator busbars 113. Each stator ring 111 has several stator holes. Several stator support rods 112 are fixedly connected to the lower part of the stator ring 111, and several stator busbars 113 are fixedly connected to the lower part of the stator ring 111 through the stator holes. Each stator ring 111 has a contact surface on the side facing away from the stator support rods 112.

[0045] The rotor mechanism 12 includes a plurality of rotor assemblies. Each rotor assembly includes a plurality of rotor rings 121, a plurality of conductive components 122, and a plurality of rotor busbars 123. Each rotor ring 121 has a plurality of rotor holes 124. The plurality of rotor busbars 123 are fixedly connected to the upper part of the rotor ring 121 through the rotor holes 124. The plurality of conductive components 122 are fixedly connected to the side of the rotor ring 121 facing the stator ring 111. Each rotor ring 121 has a conductive surface on the side facing the stator ring 111.

[0046] In this configuration, one of the rotor assemblies is rotatably connected to one of the stator assemblies, such that the conductive surface abuts against the contact surface to conduct electricity.

[0047] Please see Figure 1 , Figure 2 and Figure 3The present invention relates to a current collection device for wind power generation, comprising a stator mechanism 11 and a rotor mechanism 12. The stator mechanism 11 includes several stator assemblies, and the rotor mechanism 12 includes several rotor assemblies. Each stator assembly includes several stator rings 111, several stator support rods 112, and several stator busbars 113. The stator support rods support the stator rings 111, increasing the creepage distance and heat dissipation space, improving electrical insulation performance, and effectively preventing creepage or electrical breakdown during high current transmission, thus ensuring the stability and safety of the stator assembly. The rotor assembly includes several rotor rings 121, several conductive components 122, and several rotor busbars 123. The current collection device generates electricity during wind power generation. Electrical energy reaches the rotor ring 121 through the rotor busbar 123, achieves contact conductivity through the contact of the conductive component 122, and then reaches the bottom of the wind turbine for storage through the stator ring 111 and stator busbar 113. During the operation of the wind turbine, when the wind turbine yaw is adjusted to the direction of the maximum wind force, the rotor mechanism 12, as the follower part, always rotates synchronously with the nacelle, while the stator mechanism 11, as the stationary part, uses a copper ring for dynamic current collection. The use of follower rotation current collection and conductive component 122 for dynamic current collection replaces the original cable twisting device, eliminating the risk of cable entanglement and cable wear problems, improving the heat dissipation performance of the current collection device and the stability of the overall structure, saving design and manufacturing costs, and making it safer and more reliable.

[0048] In actual implementation, the size and quantity of the stator and rotor assemblies are selected according to the actual usage, and no specific limit is made here.

[0049] In actual implementation, the stator support rod 112 is fixedly connected to the lower part of the stator ring 111, preferably by bolt fixing.

[0050] In actual implementation, the stator busbar 113 is fixedly connected to the stator ring 111 below through the stator hole. Preferably, the fixing method is welding.

[0051] In actual implementation, the rotor busbar 123 is fixedly connected to the rotor ring 121 above the rotor hole 124. Preferably, the fixing method is welding.

[0052] In actual implementation, the conductive component 122 is fixedly connected to the side of the rotor ring 121 facing the stator ring 111. Preferably, the fixing method is bolt fixing or welding fixing.

[0053] In one embodiment, the stator mechanism 11 includes a plurality of stator assemblies, each stator assembly including a plurality of concentric and spaced stator rings 111; the rotor mechanism 12 includes a plurality of rotor assemblies, each rotor assembly including a plurality of concentric and spaced rotor rings 121, the side of the rotor ring 121 facing the stator rings 111 having a plurality of grooves, the plurality of grooves being spaced apart along the tangent direction of the outer periphery of the rotor ring 121.

[0054] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, the stator assembly and the rotor assembly are arranged in concentric circles. The concentric and spaced arrangement simplifies the structure of the stator structure and the rotor mechanism 12, and can effectively utilize the space of the overall structure, increase the creepage distance in space, improve the electrical insulation performance, realize the arrangement of as many stator structures and rotor mechanisms 12 as possible in a limited space, improve the conductivity efficiency, and improve the heat dissipation effect and heat dissipation capacity.

[0055] In actual implementation, each stator assembly includes multiple concentric and spaced stator rings 111, all of which are coaxial concentric circles of unequal diameter. The number of stator rings 111 in each layer of stator assembly is multiple, which can be two, three, or more than three stator rings 111.

[0056] Similarly, the multiple rotor rings 121 of each rotor assembly are coaxially arranged concentric circles of unequal diameters. The number of rotor rings 121 in each layer of rotor assembly is multiple, which can be two, three, or more than three rotor rings 121.

[0057] Each stator ring 111 is provided with a contact surface, and multiple contact surfaces of the same stator assembly cooperate to form the contact surface of the stator assembly. Each rotor ring 121 is provided with a conductive surface, and multiple conductive surfaces of the same rotor assembly cooperate to form the contact surface of the rotor assembly. A conductive surface slides and is electrically connected to the contact surface at the corresponding position to realize electrical contact and power transmission between the stator mechanism 11 and the rotor mechanism 12.

[0058] In actual implementation, the material of stator ring 111 is not specifically limited, but preferably, the material of stator ring 111 is copper.

[0059] In actual implementation, the material of rotor ring 121 is not specifically limited, but preferably, the material of rotor ring 121 is copper.

[0060] In practice, there is no specific limit to the number of grooves; the number is set according to the actual usage.

[0061] In one embodiment, the conductive component 122 includes a conductive element 1221, a dust removal brush 1222, a plurality of elastic elements 1223, and a plurality of conductive cables 1224. Each conductive element 1221 is disposed in each of the grooves of the rotor ring 121, and the side of the conductive element 1221 away from the groove abuts against the stator ring 111. The conductive cables 1224 are fixedly connected to the outer circumferential surface of the rotor ring 121, and one end of the conductive cables 1224 away from the rotor ring 121 is fixedly connected to the conductive element 1221. The side of the conductive element 1221 facing the groove has a plurality of pressure grooves 12211. Each elastic element 1223 is disposed in each pressure groove 12211 and elastically abuts against the rotor ring 121 and the conductive element 1221. The dust removal brush 1222 is fixedly connected to the side of the rotor ring 121 facing the stator ring 111 and abuts against the stator ring 111.

[0062] Please see Figure 1 , Figure 7 , Figure 8 and Figure 10 In this embodiment, the conductive element 1221 in the conductive assembly 122 is the main power transmission component. It yaws with the rotor ring 121 in the groove of the rotor ring 121, so that the conductive element 1221 is subjected to uniform force during rotation, which reduces the probability of failure of the conductive element 1221 and improves the safety of the overall structure. The dust removal brush 1222 rotates with the rotor ring 121 and contacts the stator ring 111 before the conductive element 1221. It can clean up the fallen powder in time, effectively avoiding the heat dissipation problem caused by powder accumulation and preventing the conductive element 1221 from failing due to overheating. The elastic element 1223 is set between the rotor ring 121 and the conductive element 1221. By using its own elasticity, it continuously applies pressure to the rotor ring 121 and the conductive element 1221, avoiding the situation of disconnection and failure due to insufficient clamping force between the rotor ring 121 and the conductive element 1221. The overall structure of the conductive assembly 122 is simple and can be quickly disassembled, replaced and repaired.

[0063] In actual implementation, the conductive component 1221 is a brush, and the material is not specifically limited, but preferably a metal brush or a graphite brush.

[0064] In actual implementation, the elastic element 1223 is not specifically limited, but preferably, the elastic element 1223 is a metal spring.

[0065] In actual implementation, the conductive cable 1224 is fixedly connected to the outer circumferential surface of the rotor ring 121. Preferably, the fixing method is bolt fixing or welding fixing.

[0066] In actual implementation, the dust removal brush 1222 is fixedly connected to the rotor ring 121 facing the stator ring 111. Preferably, the fixing method is bolt fixing or welding fixing.

[0067] In one embodiment, the dust removal brush 1222 includes an L-shaped fixing plate 12221 and brush bristles 12222. The L-shaped fixing plate 12221 includes a fixing plate and a baffle 122212. The fixing plate is fixedly connected to the side of the rotor ring 121 facing the stator ring 111. The baffle 122212 abuts against the side of the conductive element 1221. The brush bristles 12222 are fixedly connected to the side of the fixing plate facing away from the rotor ring 121. The end of the brush bristles 12222 away from the fixing plate abuts against the stator ring 111.

[0068] Please refer to 1. Figure 7 , Figure 10 , Figure 11 and Figure 12 In this embodiment, the dust removal brush 1222 includes an L-shaped fixing plate 12221 and brush bristles 12222. The L-shaped fixing plate 12221 includes a fixing plate and a baffle 122212. The fixing plate is fixedly connected to the rotor ring 121, and the baffle 122212 abuts against the side of the conductive component 1221. This allows the dust removal brush 1222 to stably remove dust when the fan is yawing, while effectively avoiding heat dissipation problems caused by powder accumulation and ensuring the stability of current output.

[0069] In actual implementation, there are no specific restrictions on the material of the L-shaped fixing plate 12221. Preferably, the material of the L-shaped fixing plate 12221 is copper.

[0070] In actual implementation, the shape of the dust removal area of ​​the bristles 12222 is not specifically limited. Preferably, the dust removal area of ​​the bristles 12222 is triangular.

[0071] In one embodiment, the cross-sectional area of ​​each conductive surface is equal;

[0072] And / or, the cross-sectional area of ​​each contact surface is equal;

[0073] And / or, a stator ring 111 of a stator assembly and two adjacent stator rings 111 of another stator assembly are arranged alternately in vertical order; a rotor ring 121 of a rotor assembly and two adjacent rotor rings 121 of another rotor assembly are arranged alternately in vertical order.

[0074] Please see Figure 1 , Figure 3 and Figure 5In this embodiment, when the current collector is used for single-phase or multi-phase power transmission, several stator components or several rotor components of the stator mechanism 11 are arranged vertically at intervals. The cross-sectional areas of several contact surfaces on several stator rings 111 in each phase are equal, and the cross-sectional areas of several conductive surfaces on several rotor rings 121 in each phase are also equal, so that the current transmitted in each phase is equal, and there will be no situation where the local transmission current is too large and causes local overheating, thus improving the stability of current transmission.

[0075] In actual implementation, the different channels of multiple stator rings 111 are designed based on the same cross-sectional area of ​​the contact surface, and the thickness of the stator rings 111 is preferably the same. The different channels of multiple rotor rings 121 are designed based on the same cross-sectional area of ​​the conductive surface, and the thickness of the conversion body is preferably the same, only the inner and outer diameters are different in order to ensure the concentric circle layout.

[0076] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A current collection device for wind power generation, characterized in that, The current collection device includes: A stator mechanism, comprising a plurality of stator assemblies, each stator assembly including a plurality of stator rings, a plurality of stator support rods, and a plurality of stator busbars. Each stator ring has a plurality of stator holes. The plurality of stator support rods are fixedly connected to the lower part of the stator ring, and the plurality of stator busbars are fixedly connected to the lower part of the stator ring through the stator holes. Each stator ring has a contact surface on the side facing away from the stator support rods. A rotor mechanism, comprising a plurality of rotor assemblies, each rotor assembly comprising a plurality of rotor rings, a plurality of conductive components and a plurality of rotor busbars, each rotor ring having a plurality of rotor holes, the plurality of rotor busbars being fixedly connected above the rotor rings through the rotor holes, the plurality of conductive components being fixedly connected to the side of the rotor rings facing the stator rings, and each rotor ring having a conductive surface on the side facing the stator rings. In this configuration, one of the rotor assemblies is rotatably connected to one of the stator assemblies, such that the conductive surface abuts against the contact surface to conduct electricity.

2. The current collector as described in claim 1, characterized in that, The stator mechanism includes a plurality of stator components, each stator component including a plurality of concentric and spaced stator rings; The rotor mechanism includes a plurality of rotor assemblies, each rotor assembly including a plurality of concentric and spaced rotor rings, and a plurality of grooves on the side of the rotor ring facing the stator ring, the plurality of grooves being spaced apart along the tangent direction of the outer periphery of the rotor ring.

3. The current collector as described in claim 2, characterized in that, The conductive assembly includes a conductive element, a dust removal brush, several elastic elements, and several conductive cables. Each conductive element is disposed in each groove of the rotor ring, and the side of the conductive element away from the groove abuts against the stator ring. The conductive cables are fixedly connected to the outer circumferential surface of the rotor ring, and one end of the conductive cable away from the rotor ring is fixedly connected to the conductive element. Several pressure grooves are formed on the side of the conductive element facing the groove. Each elastic element is disposed in each pressure groove and elastically abuts against the rotor ring and the conductive element. The dust removal brush is fixedly connected to the side of the rotor ring facing the stator ring and abuts against the stator ring.

4. The current collector as described in claim 3, characterized in that, The dust removal brush includes an L-shaped fixing plate and brush bristles. The L-shaped fixing plate includes a fixing plate and a baffle. The fixing plate is fixedly connected to the side of the rotor ring facing the stator ring. The baffle abuts against the side of the conductive component. The brush bristles are fixedly connected to the side of the fixing plate facing away from the rotor ring. The end of the brush bristles away from the fixing plate abuts against the stator ring.

5. The current collector as described in claim 1, characterized in that, The cross-sectional area of ​​each conductive surface is equal; And / or, the cross-sectional area of ​​each of the aforementioned contact surfaces is equal; And / or, a stator ring of one stator assembly and two adjacent stator rings of another stator assembly are arranged alternately vertically; a rotor ring of one rotor assembly and two adjacent rotor rings of another rotor assembly are arranged alternately vertically.

6. A wind power generation device, characterized in that, The wind power generation equipment includes: Tower; The nacelle is connected to the tower, and a generator is installed inside the nacelle; and The current collection device as described in any one of claims 1 to 5, wherein the current collection device is disposed in the engine compartment and connected to the generator.

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