CN116885516A

CN116885516A - Current collecting device and wind generating set

Info

Publication number: CN116885516A
Application number: CN202310749895.8A
Authority: CN
Inventors: 王成; 向克双; 王玉明; 康树峰; 张维波; 陈奔; 金海天
Original assignee: Tianjin Woerfar Electric Equipment Co ltd; Shenzhen Woer Heat Shrinkable Material Co Ltd
Current assignee: Tianjin Woerfar Electric Equipment Co ltd; Shenzhen Woer Heat Shrinkable Material Co Ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-10-13

Abstract

The invention discloses a current collecting device and a wind generating set, wherein the current collecting device comprises a stator mechanism, a locking assembly and a rotor mechanism, the locking assembly is connected to the outer wall of the stator mechanism, one end of the locking assembly is provided with a rolling piece, and the rotor mechanism is detachably and rotatably connected with the stator mechanism; the current collecting device is provided with a locking state of a locking component for locking the rotor mechanism and a releasing state of the locking component for releasing the rotor mechanism; in the locking state, the rolling piece is in rolling contact with the rotor mechanism; in the released state, the rolling element is remote from the rotor mechanism. The invention aims to provide the current collecting device which can ensure the axial positioning and pressure connection of the rotor mechanism and the stator mechanism and is convenient to detach, and the current collecting device effectively reduces the maintenance cost.

Description

Current collecting device and wind generating set

Technical Field

The invention relates to the technical field of wind power generation, in particular to a current collecting device and a wind generating set using the same.

Background

In order to ensure the maximization of the power generation efficiency, the wind power generator needs to continuously perform yaw motion to align with the wind direction, so that the wind power cabin can rotate relative to the tower, and the wind power generator needs to be arranged between the rotating wind power cabin and the fixed tower. In the running process of the fan, the fan is required to yaw to generate power with maximum efficiency due to the change of the wind direction, and at the moment, dynamic transmission of current is required to be realized through the collector ring structure under the condition that the circuit of the turning part is connected with the circuit of the fixed part.

At present, the collector ring structure applied to the fan is often complicated in structure, huge in size and high in maintenance cost, axial positioning cannot be realized between a rotor mechanism and a stator mechanism of the collector ring structure, disassembly is inconvenient, and maintenance is difficult.

Disclosure of Invention

The invention mainly aims to provide a current collecting device and a wind generating set, and aims to provide the current collecting device which can ensure the axial positioning and compression joint of a rotor mechanism and a stator mechanism and is convenient to detach, and the current collecting device effectively reduces the maintenance cost.

In order to achieve the above object, the present invention provides a current collecting device applied to a wind generating set, the current collecting device comprising:

a stator mechanism;

the locking component is connected to the outer wall of the stator mechanism, and one end of the locking component is provided with a rolling piece; a kind of electronic device with high-pressure air-conditioning system

The rotor mechanism is detachably and rotatably connected with the stator mechanism;

the current collecting device is provided with a locking state of the locking assembly for locking the rotor mechanism and a releasing state of the locking assembly for releasing the rotor mechanism;

in the locking state, the rolling element is in rolling abutting connection with the rotor mechanism;

In the released state, the rolling element is remote from the rotor mechanism.

In one embodiment, the locking assembly includes:

the fixing piece is connected to the outer wall of the stator mechanism;

the locking piece is movably connected to the fixing piece, and one end of the locking piece is provided with the rolling piece; a kind of electronic device with high-pressure air-conditioning system

The adjusting piece is rotationally connected with the locking piece and the fixing piece;

the adjusting piece drives the locking piece to lock or release the rotor mechanism, so that the rolling piece is in rolling abutting connection with or away from the rotor mechanism.

In an embodiment, a mounting hole is formed in one end, away from the adjusting piece, of the locking piece, the rolling piece is a cam bearing, a bolt end of the cam bearing penetrates through the mounting hole, and when the locking state is achieved, the bearing end of the cam bearing is in rolling abutting connection with the rotor mechanism;

wherein, when the rotor mechanism rotates relative to the stator mechanism, the bearing end rolls along with the rotor mechanism.

In an embodiment, the locking piece is provided with a movable groove, a rotating shaft is arranged in the movable groove, the fixing piece is convexly provided with a rotating connecting lug corresponding to the movable groove, one end of the adjusting piece is rotationally connected with the rotating connecting lug through the rotating shaft and rotationally sleeved on the rotating shaft, and the other end of the adjusting piece is provided with a handle;

The adjusting piece drives the locking piece to move relative to the fixing piece, so that the rotating connecting lug moves along the movable groove.

In an embodiment, the locking member is provided with a locking hole, the fixing member is provided with a moving hole, and the locking assembly further comprises a locking member, and the locking member sequentially penetrates through the moving hole and the locking hole;

the adjusting piece drives the locking piece to move relative to the fixing piece, so that the anti-loose piece moves along the moving hole.

In one embodiment, the locking assembly includes a plurality of locking assemblies spaced apart along a circumferential direction of the outer wall of the stator mechanism.

The invention also proposes a wind power generator set comprising:

a tower;

the engine room is rotationally connected with the tower, and is provided with a generator; a kind of electronic device with high-pressure air-conditioning system

In the above-mentioned current collector, the rotor mechanism of the current collector is disposed in the nacelle and connected to the generator, and the stator mechanism of the current collector is connected to the tower.

According to the current collecting device, the rotor mechanism is detachably and rotatably connected with the stator mechanism, so that the rotor mechanism can rotate or rotate relative to the stator mechanism, and the rotor mechanism and the stator mechanism can be detached and separated; simultaneously, through set up locking subassembly at stator mechanism's outer wall to be equipped with the rolling element in locking subassembly's one end, thereby utilize locking subassembly locking or release rotor mechanism, make current collector have locking state and release state, in locking state, rolling element and rotor mechanism roll butt, in release state, the rolling element is kept away from rotor mechanism, thereby utilize locking subassembly both can guarantee rotor mechanism and stator mechanism's axial positioning crimping, the current collector that again can conveniently dismantle, make this current collector effectively reduce the maintenance cost. The collector device of the invention not only improves the stability, greatly simplifies the integral structure of the collector device, improves the safety performance of the heavy current collector ring, and is convenient for later maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a current collector according to an embodiment of the present invention;

FIG. 2 is a schematic view of a locking assembly according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a rotor mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a rotor according to an embodiment of the present invention;

FIG. 5 is a schematic view of a partition assembly according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a stator mechanism according to an embodiment of the present invention;

FIG. 7 is a schematic top view of a stator mechanism according to an embodiment of the present invention;

FIG. 8 is a schematic view of a stator assembly according to an embodiment of the present invention;

FIG. 9 is a schematic top view of a stator assembly according to an embodiment of the present invention;

FIG. 10 is an enlarged schematic view of FIG. 9A;

FIG. 11 is a schematic partial cross-sectional view showing the cooperative connection of a rotor and a stator according to an embodiment of the present invention.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Meanwhile, the meaning of "and/or" and/or "appearing throughout the text is to include three schemes, taking" a and/or B "as an example, including a scheme, or B scheme, or a scheme that a and B satisfy simultaneously.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

In order to ensure the maximization of the power generation efficiency, the wind power generator needs to continuously perform yaw motion to align with the wind direction, so that the wind power cabin can rotate relative to the tower, and in the running process of the wind power generator, the wind power generator needs to yaw to generate power with maximum efficiency due to the change of the wind direction, and at the moment, the dynamic transmission of current is realized through the collector ring structure under the condition that a circuit of the turning part is connected with a circuit of the fixed part.

At present, the collector ring structure applied to the fan is often complicated in structure, huge in size and high in maintenance cost, axial positioning cannot be realized between a rotor mechanism and a stator mechanism of the collector ring structure, disassembly is inconvenient, and maintenance is difficult. Meanwhile, the collector ring structure realizes dynamic transmission of current through relative rotation of conductive media which are in contact with each other, such as the carbon brush is in rotary contact with metal or the carbon brush is in rotary contact with the carbon brush, but due to long-time rotary operation of the wind power generator, more heat is generated due to long-time friction of the two conductive media which are in contact with each other, and the overall safety and reliability of the collector ring structure are reduced along with the passing of large current. In the related art, the special cooling device is arranged to radiate and cool the collector ring structure, but the cooling device is arranged to make the whole structure of the collector ring complex and difficult to install and maintain.

In addition, besides a large current line output by the fan, a plurality of control lines and power transmission lines are connected between the tower bottom and the tower top fan, and the slip ring technology in the related technology cannot meet the requirement that all lines are connected through slip rings, and after the fan operates for a period of time, the fan is required to be stopped for cable disconnection so as to avoid cable twist-off. Meanwhile, the conductive slip ring structure in the related art is often complex in structure, easy to wear, unstable enough, difficult to install and overhaul or not suitable for the use condition of high current.

In view of the above, the present application proposes a current collecting device 100. It can be appreciated that the current collector 100 is used for transmitting and collecting electric power generated by a generator in a wind generating set, and can perform electric power transmission in a dynamic abutting manner, i.e. two electric power transmission mechanisms moving relatively still keep abutting.

The current collecting device 100 is suitable for a fan yaw rotor with slow rotation speed, can bear high current, has a stable structure, and provides a novel conductive slip ring structure with long service life in an extreme environment of the fan. In the working process of the current collecting device 100, the axial positioning between the rotor mechanism 2 and the stator mechanism 1 can be ensured, and the rotor mechanism 2 and the stator mechanism 1 can be easily disassembled during maintenance.

Referring to fig. 1 to 11 in combination, in the embodiment of the invention, the current collecting device 100 includes a stator mechanism 1, a locking assembly 4 and a rotor mechanism 2, the locking assembly 4 is connected to an outer wall of the stator mechanism 1, a rolling member 425 is disposed at one end of the locking assembly 4, and the rotor mechanism 2 is detachably connected to the stator mechanism 1 in a rotating manner; wherein, the current collecting device 100 has a locking state that the locking component 4 locks the rotor mechanism 2 and a releasing state that the locking component 4 releases the rotor mechanism 2; in the locked state, the rolling element 425 is in rolling contact with the rotor mechanism 2; in the released state, the rolling member 425 is away from the rotor mechanism 2.

In this embodiment, the stator mechanism 1 is provided with a receiving groove 111, a conductive surface is disposed in the receiving groove 111, the rotor mechanism 2 is provided with an electric shock surface, and the rotor mechanism 2 is detachably covered on a notch of the receiving groove 111 and is rotationally connected with the stator mechanism 1, so that the electric shock surface is in contact and conduction with the conductive surface. It can be understood that the current collecting device 100 is applied to a wind generating set, the rotor mechanism 2 of the current collecting device 100 is connected with the yaw mechanism of the fan through a cable and rotates along with the yaw mechanism, and the stator mechanism 1 is fixedly connected to the tower barrel of the fan and is a static mechanism of the stator mechanism 1. The conductive surface of the stator mechanism 1 is contacted and abutted with the electric shock surface of the rotor mechanism 2, so that the conductive surface and the electric shock surface are always kept or are in an abutting state when the rotor mechanism 2 rotates or rotates relative to the stator mechanism 1, and the rotor mechanism 2 and the stator mechanism 1 are conductive.

It will be appreciated that the stator mechanism 1 is used to mount, support and secure the components of the rotor mechanism 2 and the locking assembly 4, i.e. the stator mechanism 1 provides a mounting basis for the components of the rotor mechanism 2 and the locking assembly 4. In the present embodiment, the stator mechanism 1 is provided with a receiving groove 111, and the receiving groove 111 may be a groove structure or a through groove structure, which is not limited herein. Alternatively, the accommodating groove 111 of the stator mechanism 1 has a bottom wall and side walls.

In the present embodiment, the rotor mechanism 2 is detachably connected to the stator mechanism 1, that is, the rotor mechanism 2 may be connected to the stator mechanism 1 or may be detached from the stator mechanism 1. When the rotor mechanism 2 is connected to the stator mechanism 1, the rotor mechanism 2 is rotatably connected to the stator mechanism 1, that is, the rotor mechanism 2 is rotatable with respect to the stator mechanism 1.

It can be understood that when the rotor mechanism 2 is covered on the notch of the accommodating groove 111, the rotor mechanism 2 is rotationally connected with the stator mechanism 1, and at this time, part of the rotor mechanism 2 is accommodated in the accommodating groove 111, so that the electric shock surface is in contact with the conductive surface, so that the electric shock surface is always in contact with the conductive surface when the rotor mechanism 2 rotates or rotates relative to the stator mechanism 1, and dynamic power transmission can be formed.

In this embodiment, the locking component 4 is disposed on the outer wall of the stator mechanism 1, so that when the rotor mechanism 2 covers the notch of the accommodating groove 111, the rotor mechanism 2 is locked or positioned on the stator mechanism 1 by using the locking component 4, so that the rotor mechanism 2 and the stator mechanism 1 can realize positioning and limiting in the axial direction, and the rotor mechanism 2 is not influenced to rotate or rotate relative to the stator mechanism 1. It will be appreciated that the rotor mechanism 2 is locked or released by the locking assembly 4 such that the current collector 100 has a locked state and a released state.

It can be appreciated that, by providing the rolling member 425 at one end of the locking assembly 4, when the current collecting device 100 is in the locked state, the rolling member 425 is in rolling contact with the rotor mechanism 2, so that the rotor mechanism 2 can be effectively ensured to rotate or rotate relative to the stator mechanism 1; in the released state, the rolling member 425 is far away from the rotor mechanism 2, so that the rotor mechanism 2 and the stator mechanism 1 are conveniently detached, the structure is simplified, and the overhaul is convenient.

The current collecting device 100 of the invention can realize the rotation or the rotation of the rotor mechanism relative to the stator mechanism and can disassemble and separate the rotor mechanism from the stator mechanism by detachably and rotatably connecting the rotor mechanism with the stator mechanism; meanwhile, the locking component 4 is arranged on the outer wall of the stator mechanism 1, and the rolling piece 425 is arranged at one end of the locking component 4, so that the rotor mechanism 2 is locked or released by the locking component 4, the current collecting device 100 is in a locking state and a releasing state, the rolling piece 425 is in rolling contact with the rotor mechanism 2 in the locking state, and the rolling piece 425 is far away from the rotor mechanism 2 in the releasing state, so that the axial positioning compression joint of the rotor mechanism 2 and the stator mechanism 1 can be ensured by the locking component 4, the disassembly of the current collecting device 100 can be facilitated, and the maintenance cost of the current collecting device 100 is effectively reduced. The collector device 100 of the invention not only improves the stability, but also greatly simplifies the integral structure of the collector device 100, improves the safety performance of the heavy current collector ring, and is convenient for later maintenance.

It can be appreciated that the locking component 4 may also be disposed on the rotor mechanism 2, so when the rotor mechanism 2 is detachably covered on the notch of the accommodating groove 111 of the stator mechanism 1 and is rotationally connected with the stator mechanism 1, the stator mechanism 1 is locked or released by using the locking component 4, so that the current collecting device 100 has a locking state and a releasing state, in the locking state, the rolling member 425 is in rolling contact with the stator mechanism 1, and in the releasing state, the rolling member 425 is far away from the stator mechanism 1, thereby not only ensuring the axial positioning and compression connection of the rotor mechanism 2 and the stator mechanism 1 by using the locking component 4, but also facilitating the disassembly of the current collecting device 100, so that the current collecting device 100 effectively reduces the maintenance cost.

In one embodiment, the locking assembly 4 includes a fixing member 41, a locking member 42 and an adjusting member 43, wherein the fixing member 41 is connected to the outer wall of the stator mechanism 1, the locking member 42 is movably connected to the fixing member 41, a rolling member 425 is disposed at one end of the locking member 42, and the adjusting member 43 is rotatably connected with the locking member 42 and is rotatably connected with the fixing member 41; wherein, the adjusting member 43 drives the locking member 42 to lock or release the rotor mechanism 2, so that the rolling member 425 is in rolling contact with or away from the rotor mechanism 2.

In this embodiment, as shown in fig. 1 and 2, the fixing member 41 may be selected as a fixing plate structure, and the fixing member 41 may be fixedly connected to the outer wall of the stator mechanism 1, or may be integrally formed with the outer wall of the stator mechanism 1, which is not limited herein. By disposing the fixing member 41 to the outer wall of the stator mechanism 1 adjacent to the notch of the accommodation groove 111, it is convenient for one end of the locking member 42 to protrude from the end face of the stator mechanism 1 adjacent to the notch of the accommodation groove 111.

It can be appreciated that the locking member 42 is movably disposed on the fixing member 41, such that one end of the locking member 42 is provided with a rolling member 425, and is rotatably connected with the locking member 42 through the adjusting member 43 and is rotatably connected with the fixing member 41, so that the adjusting member 43 can be utilized to drive the locking member 42 to lock or release the rotor mechanism 2, so that the rolling member 425 is in rolling contact with or away from the rotor mechanism 2.

In this embodiment, the locking member 42 may be a strip or plate structure, and the locking member 42 and the fixing member 41 may be slidably connected or movably connected, which is not limited herein. The adjusting member 43 may alternatively be a handle member structure, which facilitates the user's operation through the adjusting member 43 to slide or move the locking member 42 relative to the fixing member 41, so that the locking member 42 locks or releases the rotor mechanism 2.

It can be appreciated that the locking assembly 4 locks and limits the rotor mechanism 2 through the cooperation of the fixing member 41, the locking member 42 and the adjusting member 43, so that the stator mechanism 1 axially limits the rotor mechanism 2 through the locking assembly 4. In the present embodiment, the rolling member 425 is provided at one end of the locking member 42, so that the rolling member 425 is brought into rolling contact with the rotor mechanism 2, thereby realizing both the limit mounting and the wear reduction.

Alternatively, the locking assembly 4 includes a plurality of locking assemblies 4 arranged at intervals along the circumferential direction of the outer wall of the stator mechanism 1 and surrounding the notch of the receiving groove 111. It will be appreciated that the outer wall of the stator mechanism 1 is provided with a plurality of locking assemblies 4 to provide axial positioning of the rotor mechanism 2 to avoid disengagement of the rotor mechanism 2. The rolling members 425 on the locking assembly 4 contact the rotor mechanism 2 to reduce friction caused by circumferential movement thereof. The structure can realize quick press connection, is reliable in contact, is convenient to detach and is beneficial to maintenance.

In one embodiment, a mounting hole 421 is formed at one end of the locking member 42 away from the adjusting member 43, the rolling member 425 is a cam bearing, the bolt end of the cam bearing is inserted into the mounting hole 421, and in the locked state, the bearing end 426 of the cam bearing is in rolling contact with the rotor mechanism 2; wherein the bearing end 426 rolls with the rotor mechanism 2 as the rotor mechanism 2 rotates relative to the stator mechanism 1.

It will be appreciated that, as shown in fig. 1 and 2, the rolling member 425 is configured as a cam bearing, where the cam bearing has a bolt end and a bearing end 426 that are connected, so that the bolt end of the cam bearing is inserted into the mounting hole 421, thereby implementing mounting and fixing of the cam bearing, so that in the locked state, the bearing end 426 of the cam bearing is in rolling abutment with the rotor mechanism 2, and when the rotor mechanism 2 rotates relative to the stator mechanism 1, the bearing end 426 rolls along with the rotor mechanism 2, and the bearing end 426 can reduce friction caused by circumferential movement of the rotor mechanism 2, so that quick press-connection can be implemented, contact is reliable, and convenient for disassembly, and maintenance is facilitated.

Optionally, a securing glue is applied between the inner race of bearing end 426 and the shaft of the cam bearing to prevent removal while avoiding nonsensical disassembly.

In an embodiment, as shown in fig. 1 and 2, the locking member 42 is provided with a movable slot 422, a rotating shaft 423 is arranged in the movable slot 422, the fixed member 41 is convexly provided with a rotating connecting lug 411 corresponding to the movable slot 422, one end of the adjusting member 43 is rotationally connected with the rotating connecting lug 411 through a rotating shaft 432 and is rotationally sleeved on the rotating shaft 423, and the other end of the adjusting member 43 is provided with a handle 431; wherein, the adjusting member 43 drives the locking member 42 to move relative to the fixing member 41, so that the rotating connecting lug 411 moves along the movable slot 422.

It will be appreciated that such an arrangement facilitates movement of the adjustment member 43 with respect to the securing member 41 such that the securing member 42 locks or releases the rotor mechanism 2 to roll the rolling member 425 against or away from the rotor mechanism 2.

In order to prevent the locking member 42 from being separated from the fixing member 41, in one embodiment, as shown in fig. 1 and 2, the locking member 42 is provided with a locking hole 424, the fixing member 41 is provided with a moving hole, the locking assembly 4 further includes an anti-loose member 44, and the anti-loose member 44 sequentially penetrates through the moving hole and the locking hole 424; wherein, the adjusting member 43 drives the locking member 42 to move relative to the fixing member 41, so that the locking member 44 moves along the moving hole.

It will be appreciated that the locking member 44 may be a nut-bolt matching structure, or may be another member capable of locking and unlocking, and the locking member 42 may be locked on the fixing member 41, and the locking member 42 may not be affected to move relative to the fixing member 41 under the driving of the adjusting member 43. Optionally, the nut is a locknut, the bolt is a bolt with holes, and the locknut is matched with the bolt with holes for locking the locking piece 42, preventing the locking piece 42 from loosening, and further improving the stability of the structure. Lead sealing can be added in the hole of the bolt with the hole, so that nonsensical disassembly is avoided.

In this embodiment, the adjusting member 43 is a manual pressing handle, and the locking member 42 is driven to move down to the structural dead point by manually pressing the handle to the vertical state, so as to achieve locking between the rotor mechanism 2 and the stator mechanism 1. Lifting the handle drives the locking member 42 to move upwards to release the rotor mechanism 2 and the stator mechanism 1. This way, a rapid compression between the rotor mechanism 2 and the stator mechanism 1 can be achieved, preventing abnormal vibrations.

It will be appreciated that through the mounting holes provided in the securing member 41, when the securing member 42 is in the compressed position, it is blocked by the securing member 42, and the pin mounting holes of the securing member 42 to the handle are also blocked between the securing member 42 and the securing member 41, unless the lead seal is opened, it cannot be removed, avoiding meaningless removal.

In one embodiment, the stator mechanism 1 includes a stator base 11 and a plurality of stator pieces 12, the stator base 11 has a cavity with one end open, the locking component 4 is connected to the outer wall of the stator base 11 and is disposed adjacent to the opening, the plurality of stator pieces 12 are disposed in the cavity at intervals of concentric circles and divide the cavity into a containing groove 111 and a heat dissipation space, a first gap 1215 is formed between two adjacent stator pieces 12 so as to enable the heat dissipation space to be communicated with the containing groove 111, and a conductive surface is disposed on one side of each stator piece 12 facing the containing groove 111; the rotor mechanism 2 comprises a plurality of rotor pieces 21, wherein the rotor pieces 21 are arranged at intervals in concentric circles, a second gap is formed between two adjacent rotor pieces 21, and each rotor piece 21 is provided with an electric shock surface; the rotor mechanism 2 is detachably covered on the notch of the accommodating groove 111 and is rotatably connected with the stator seat 11, so that each rotor member 21 and the stator member 12 are correspondingly arranged, and each electric shock surface is in abutting connection with a conductive surface.

In the present embodiment, as shown in fig. 1, 3 to 11, the stator base 11 of the stator mechanism 1 is used for mounting, supporting and fixing the plurality of stator pieces 12 and the rotor mechanism 2, that is, the stator base 11 provides a mounting base for the plurality of stator pieces 12 and the rotor mechanism 2. In this embodiment, the stator seat 11 is provided with a cavity, which may be a groove structure or a through groove structure, which is not limited herein. Alternatively, the stator seat 11 is a cylindrical structure having an opening at one end. A plurality of stator pieces 12 form a stator assembly.

In the present embodiment, the accommodating cavity of the stator seat 11 has a bottom wall and a side wall, the plurality of stator pieces 12 of the stator assembly are disposed in the accommodating groove 111 through the support columns, so that the plurality of stator pieces 12 and the stator seat 11 enclose to form a heat dissipation space, and the conductive surfaces of the plurality of stator pieces 12 and the side wall of the accommodating cavity enclose to form the accommodating groove 111, that is, the conductive surfaces are located at the bottom wall of the accommodating groove 111. It can be appreciated that the plurality of stator pieces 12 may be connected to the bottom wall and/or the side wall of the cavity through the support columns, so that the plurality of stator pieces 12 of the stator assembly and the bottom wall and the side wall of the cavity of the stator base 11 enclose to form a heat dissipation space, and thus the heat generated by the stator assembly can be fully and effectively dissipated by using the heat dissipation space.

It can be appreciated that the support column is optionally disposed on the bottom wall of the accommodating cavity of the stator seat 11, for supporting the stator assembly, so that on one hand, the stator assembly is installed and fixed, and on the other hand, a heat dissipation space is also formed conveniently, thereby improving the heat dissipation effect. In this embodiment, a conductive surface is disposed on a side of the stator assembly facing away from the support column, the rotor mechanism 2 is provided with an electric shock surface, and the rotor mechanism 2 is rotationally connected with the stator base 11, so that the electric shock surface is in contact with the conductive surface for conduction, and thus the electric shock surface and the conductive surface are always kept in contact when the rotor mechanism 2 rotates or rotates relative to the stator base 11, and dynamic power transmission can be formed.

According to the current collecting device 100, the stator mechanism 1 is arranged as the stator seat 11, the support columns and the stator assembly, the stator assembly is arranged in the accommodating cavity of the stator seat 11 through the support columns, so that the stator assembly and the accommodating cavity of the stator seat 11 are enclosed to form a heat dissipation space, heat dissipation of the stator assembly is realized by utilizing the heat dissipation space, meanwhile, the support columns further guide the heat of the stator assembly into the heat dissipation space, so that the heat dissipation effect is improved, and further, the umbrella skirt is arranged on the support columns, so that the heat dissipation area of the support columns is further increased, and the heat dissipation capacity of the stator mechanism 1 can be effectively improved; and, be equipped with the conducting surface in the side that stator module was facing away from the support column to be equipped with the electric shock face at rotor mechanism 2, so with rotor mechanism 2 and stator seat 11 swivelling joint, so that electric shock face and conducting surface butt are switched on, thereby realize the dynamic transmission of electric power from rotor mechanism 2 to stator mechanism 1. It can be appreciated that the current collecting device 100 of the present invention not only improves the heat dissipation capability and stability, but also greatly simplifies the overall structure of the current collecting device 100 without providing a separate cooling device, improves the safety performance of the high-current collector ring, and is convenient for later maintenance.

In this embodiment, the plurality of stator members 12 are rigidly connected to the stator base 11 through support columns, and the sheds on the support columns can be selected as heat-shrinkable sheds, which suspend the contact between the rotor mechanism 2 and the stator assembly, increase the heat convection area, facilitate the dissipation of heat of the rotor mechanism and the stator assembly, and facilitate the transmission of large currents.

In order to further increase the heat dissipation effect, optionally, a plurality of sheds are arranged on the support column, and the plurality of sheds are arranged at intervals along the extension direction of the support column. In this embodiment, the sheds are optionally located in the middle of the support column.

To further enhance ease of assembly and disassembly, the support post and stator piece 12 may optionally be removably coupled, such as by a snap-fit, a bayonet-fit, a screw-fit, a bayonet-fit, or the like, without limitation. The support post is optionally detachably connected to the stator base 11, for example by a snap-fit connection, a plug-fit connection, a screw connection or a pin connection, etc., without limitation. In this embodiment, the support column is connected to the stator member 12 by a screw, and the support column is connected to the bottom wall of the stator base 11 by a screw.

In an embodiment, the umbrella skirt comprises a fixing part and a heat dissipation part which are connected, the support column penetrates through the fixing part and the heat dissipation part, and the cross-sectional area of the heat dissipation part in the direction perpendicular to the extension direction of the support column is larger than that of the fixing part in the direction perpendicular to the extension direction of the support column.

In this embodiment, the umbrella skirt is configured as the fixing portion and the heat dissipation portion, so that the umbrella skirt is installed on the support column through the connection of the fixing portion, and the cross-sectional area of the heat dissipation portion in the direction perpendicular to the extension direction of the support column is larger than the cross-sectional area of the fixing portion in the direction perpendicular to the extension direction of the support column, so that the heat dissipation convection area of the umbrella skirt is increased through the heat dissipation portion. It is understood that the heat dissipation portion is connected to an end of the fixing portion away from the stator assembly, and the cross-sectional area of the heat dissipation portion gradually increases from the fixing portion to the end away from the fixing portion.

Optionally, the fixing portion and the heat dissipation portion are integrally formed. The umbrella skirt is provided with a mounting hole penetrating through the fixing part and the heat dissipation part, and the support column penetrates through the mounting hole of the umbrella skirt. It can be appreciated that the support column and the umbrella skirt can be fixedly connected, for example, by adopting welding, bonding and the like, so that the connection stability of the support column and the umbrella skirt can be improved. Of course, the support post and the umbrella skirt may be detachably connected, for example, by a snap connection, a plug connection, a screw connection, or a pin connection, which is not limited herein. Therefore, the support columns and the umbrella skirt can be conveniently disassembled and assembled, a plurality of umbrella skirts can be arranged according to actual conditions, and the umbrella skirts are not limited.

In an embodiment, the stator assembly includes a plurality of stator pieces 12, the plurality of stator pieces 12 are arranged at intervals in concentric circles, a first gap 1215 is formed between two adjacent stator pieces 12, so that the heat dissipation space is communicated with the accommodating groove 111 through the first gap 1215, each stator piece 12 is connected with the stator seat 11 through a support column, and each stator piece 12 is provided with a conductive surface; the rotor mechanism 2 includes a plurality of rotor members 21, the plurality of rotor members 21 are arranged at intervals in concentric circles, a second gap is formed between two adjacent rotor members 21, each rotor member 21 is provided with an electric shock surface, and each rotor member 21 is correspondingly arranged with a stator member 12, so that each electric shock surface is in contact with and conducted with a conductive surface.

In this embodiment, as shown in fig. 3 to 11, by providing the stator assembly as a plurality of stator pieces 12, each stator piece 12 is provided with a conductive surface, and providing the rotor mechanism 2 as a plurality of rotor pieces 21, each rotor piece 21 is provided with an electric shock surface, so that each rotor piece 21 is correspondingly provided with a stator piece 12, when the rotor mechanism 2 is rotationally connected with the stator base 11, each electric shock surface is made to be in contact with and conductive with a conductive surface, so that current transmission is performed by the plurality of rotor pieces 21 of the rotor mechanism 2 in the current collecting device 100 through the plurality of stator pieces 12 of the stator mechanism 1, and large current is transmitted.

It can be appreciated that by arranging the plurality of stator members 12 at intervals of concentric circles, the first gap 1215 is formed between two adjacent stator members 12, and arranging the plurality of rotor members 21 at intervals of concentric circles, the second gap is formed between two adjacent rotor members 21, so that when the rotor mechanism 2 is rotationally connected with the stator base 11, the first gap 1215 and the second gap are correspondingly communicated, the structure of the stator assembly and the rotor mechanism 2 is simplified, and the heat dissipation space is communicated through the first gap 1215 and the second gap, so that heat generated by the rotor mechanism 2 can be effectively transferred to the heat dissipation space through the first gap 1215 and the second gap for heat dissipation, thereby further improving the heat dissipation effect and the heat dissipation capability.

It should be noted that, compared with the prior art that the cooling device is separately arranged in the wind driven generator, the current collecting device 100 of the present application has the advantages that the heat dissipation space is arranged in the stator mechanism 1, when the rotor mechanism 2 rotates or rotates relative to the stator mechanism 1, the electric shock surface is in contact with the conductive surface to generate heat, so that the generated heat is dissipated by using the heat dissipation space, meanwhile, the stator assembly is arranged in the accommodating groove 111 of the stator seat 11 by arranging the support column, the heat generated by the stator assembly can be directly led into the heat dissipation space by using the support column to dissipate heat, and further, the umbrella skirt is arranged on the support column, so that the heat dissipation area of the support column is increased, the heat dissipation is effectively and quickly realized, the heat dissipation effect is improved, the heat dissipation effect and the stability of the current collecting device 100 are improved, the structure of the current collecting device 100 is simplified, the safety performance of the high-current collector ring is improved, and the later maintenance and the maintenance are convenient.

In the related art, for example, in a conductive slip ring structure disclosed in CN114725746a, a conductive slip ring capable of pre-adjusting the rotation speed of equipment is disclosed, the structure is that a conductive rod is installed on the end face of a rotor, a conductive adjusting ring composed of different resistance arc sections and insulating arc sections is fixed on the conductive rod, the conductive rod is rotated to enable the resistance arc sections with different resistance values to be in contact with the conductive ring, and the circulating current is changed so as to realize the pre-adjustment of the rotation speed of the equipment. However, the conductive slip ring with the structure is more serious in abrasion along with the increase of the service time, and is not suitable for the more extreme working condition of wind power.

In an embodiment, each stator member 12 includes a stator 121 and a spring contact finger 122, the stator 121 is disposed in an annular shape, the stator 121 is disposed in the accommodating cavity, a sliding groove 1211 is disposed on a side of the stator 121 facing the accommodating groove 111, the spring contact finger 122 is disposed in the sliding groove 1211, and a conductive surface is formed on a side of the spring contact finger 122 facing away from a bottom wall of the sliding groove 1211; wherein, each rotor piece 21 is provided with a protrusion 2111, a side of the protrusion 2111 facing away from the rotor piece 21 forms an electric shock surface, and part of the protrusion 2111 extends into the sliding groove 1211 so that the protrusion 2111 abuts against the spring contact finger 122.

In the present embodiment, as shown in fig. 6 to 11, the stators 121 of the stator members 12 may be selected to have a circular ring structure, so that the stators 121 of the plurality of stator members 12 are arranged in concentric circle structures having different diameters. In order to achieve the installation of the spring contact finger 122 and to facilitate the dynamic abutment with the rotor member 21, the top surface of the stator 121 is provided with a sliding groove 1211. Alternatively, the sliding grooves 1211 are provided to extend in the circumferential direction of the stator 121, that is, the sliding grooves 1211 have an annular groove structure.

It can be appreciated that the spring contact finger 122 is disposed in the sliding groove 1211, and a conductive surface is formed on a side of the spring contact finger 122 facing away from the bottom wall of the sliding groove 1211, so that when the protrusion 2111 of the rotor member 21 extends into the sliding groove 1211, the electrical contact surface of the protrusion 2111 is always kept in contact with the conductive surface of the spring contact finger 122. Alternatively, the width of the slide groove 1211 in the radial direction is larger than the width of the protrusion 2111 in the radial direction.

In this embodiment, as shown in fig. 11, when the protrusion 2111 abuts against the spring contact finger 122, the spring contact finger 122 is compressed by the rotor member 21 under the action of the pressing force, so as to increase the contact area between the rotor member 21 and the stator member 12, and the current flows through the spring contact finger 122, which is helpful for the transmission of large current and increases the reliability of the apparatus.

In one embodiment, as shown in fig. 8 to 11, the bottom wall of the sliding groove 1211 is concavely formed with a groove 1212, the spring finger 122 is accommodated and limited in the groove 1212, and a part of the spring finger 122 protrudes out of the notch of the groove 1212. It will be appreciated that by providing the groove 1212 in the bottom wall of the slide groove 1211, on the one hand, a limited mounting of the spring contact finger 122 is achieved by the groove 1212, and on the other hand, during rotation of the rotor member 21 relative to the stator member 12, the problem of movement of the spring contact finger 122 with the rotor member 21 is avoided.

Of course, to further reduce wear between the rotor and stator pieces 21, 12, in one embodiment, each stator piece 12 further includes grease contained within the groove 1212. It will be appreciated that the grease both reduces wear between the rotor member 21 and the stator member 12 and assists the current collector 100 in transmitting high currents.

It should be noted that, the grease in the groove 1212 sinks to the stator seat 11 along the supporting column under the action of gravity, if such phenomenon occurs, it may cause breakdown short circuit of each phase, and the arrangement of the umbrella skirt on the supporting column can effectively prevent breakdown along the upright column between each phase.

In an embodiment, the spring finger 122 includes a plurality of finger portions 1221 and a plurality of connection portions 1222, the plurality of finger portions 1221 and the plurality of connection portions 1222 are alternately connected and form a ring shape, a conductive surface is formed on a side of each finger portion 1221 facing away from a bottom wall of the sliding groove 1211, the groove 1212 includes a plurality of first groove sections 1213 and a plurality of second groove sections 1214, the plurality of first groove sections 1213 and the plurality of second groove sections 1214 are alternately arranged and are mutually communicated, each finger portion 1221 is accommodated in one of the first groove sections 1213, and a portion of the finger portion 1221 protrudes out of a notch of the first groove section 1213, and each connection portion 1222 is accommodated in one of the second groove sections 1214.

In the present embodiment, as shown in fig. 8 to 11, by providing the spring finger 122 as the plurality of finger portions 1221 and the plurality of connection portions 1222, the plurality of finger portions 1221 and the plurality of connection portions 1222 are alternately connected and formed in a ring shape, so that the stator member 12 can be abutted with the rotor member 21 through the plurality of finger portions 1221 while the abrasion problem between the stator member 12 and the rotor member 21 can be reduced.

In one embodiment, the width of the first gap 1215 is 15mm to 60mm. In the present embodiment, as shown in fig. 6 and 7, the width of the first gap 1215 is the width of the first gap 1215 in the radial direction. The distance between two adjacent stator pieces 12 is set between 15mm and 60mm, so that the overall layout of a plurality of cables can be optimized, the capacity of the conductive slip ring for transmitting large current is increased, and the conductive slip ring is convenient to install and overhaul to a certain extent; by the width control of the first gap 1215, the creepage distance between the adjacent two stator pieces 12 is effectively increased, and the function of preventing the current breakdown is played.

Alternatively, the width of the first gap 1215 is 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, etc., without limitation herein.

In this embodiment, the width of the second gap may be selected to be 15mm to 60mm. The width of the second gap is the width of the second gap in the radial direction. The distance between two adjacent rotor pieces 21 is set between 15mm and 60mm, so that the overall layout of a plurality of cables can be optimized, the capacity of the conductive slip ring for transmitting large current is increased, and the conductive slip ring is convenient to install and overhaul to a certain extent; by controlling the width of the second gap, the creepage distance between the adjacent two rotor pieces 21 is effectively increased, and the function of preventing the current breakdown is achieved. Alternatively, the width of the second gap is the same as the width of the first gap 1215.

It will be appreciated that the plurality of first gaps 1215 formed by the plurality of stator members 12 may have the same width or may have different widths. Optionally, the width of the plurality of first gaps 1215 increases gradually in a radial direction from the center of the stator assembly. Of course, among the plurality of second gaps formed by the plurality of rotor members 21, the widths of the plurality of second gaps may be the same or different. Alternatively, the widths of the plurality of second gaps gradually increase in the radial direction from the center of the rotor mechanism 2.

In this embodiment, as shown in fig. 7, the projection of the umbrella skirt on the bottom wall of the accommodating groove 111 coincides with the projection of the first gap 1215 on the bottom wall of the accommodating groove 111. It can be understood that the area of the cross section of the umbrella skirt along the extending direction perpendicular to the supporting column is larger than the area of the stator piece 12 at the overlapping part of the supporting column, so that the heat dissipation area can be effectively increased through the umbrella skirt, and the heat dissipation effect is improved.

In order to further improve the mounting stability of the stator pieces 12, the support columns may optionally include a plurality of support columns, each stator piece 12 being connected to the stator base 11 by a plurality of support columns, the plurality of support columns being disposed at intervals in the circumferential direction of the stator piece 12. Optionally, the number of support columns is 2 to 10. In this embodiment, as shown in fig. 3, the connection lines of the support columns connected to the two adjacent stator pieces 12 do not coincide with the radial direction of the stator assembly, so that mutual influence of umbrella skirts on the adjacent support columns can be avoided, interference of structures can be avoided, and heat dissipation effect can be improved.

It will be appreciated that the plurality of stator elements 12 may be selected from two, three, four, five, six or more, without limitation. Accordingly, the plurality of rotor pieces 21 may be selected from two, three, four, five, six or more, without limitation. In this embodiment, the number of the stator members 12 may be six, the number of the rotor members 21 may be six, the six stator members 12 are arranged in a concentric circle structure, the six rotor members 21 are arranged in a concentric circle structure, and the rotor members 21 and the stator members 12 are arranged in a one-to-one correspondence.

In an embodiment, as shown in fig. 6 and 8, each stator member 12 further includes a copper bar 123, one end of the copper bar 123 is connected to the stator 121, the other end of the copper bar 123 penetrates through the bottom wall of the cavity, and the temperature sensor is disposed on a side of the stator base 11 facing away from the rotor member 21 and is close to one end of the copper bar 123 extending out of the accommodating groove 111.

In the present embodiment, the copper bars 123 are connected to the stator 121, so that the current that transmits the rotor member 21 to the stator member 12 is transmitted by conduction through the copper bars 123. The copper bars 123 may be copper bars, spring plates, or conductive connection plates, which are not limited herein. It will be appreciated that by providing a temperature sensor, the temperature of the stator member 12 is sensed by the temperature sensor and a temperature signal is transmitted to prevent excessive temperature rise of the conductive slip ring.

It can be appreciated that the temperature sensor may be fixed on the copper bar 123 or on the stator base 11, and the detection probe of the temperature sensor may directly abut against the copper bar 123 or may be disposed close to the copper bar 123, which is not limited herein. Optionally, each stator piece 12 further includes a plurality of copper bars 123, and the plurality of copper bars 123 are disposed at intervals along the circumferential direction of the stator 121. This arrangement helps the current collecting device 100 to achieve the transmission of a large current.

In an embodiment, the stator mechanism 1 further includes a cable seat 124 and a cable 125, the cable seat 124 is connected to an end of the stator seat 11 far from the rotor mechanism 2, one end of the cable 125 is connected to the copper bar 123, and the other end of the cable 125 is fixed to the cable seat 124.

In the present embodiment, as shown in fig. 1 and 6, by providing the cable seat 124, it is convenient to use the cable seat 124 to fix the plurality of cables 125, and to realize sequential connection of the cables 125, thereby avoiding mess of the cables 125.

In an embodiment, the stator base 11 is further provided with an air inlet 112 and an air outlet 113 that are communicated with the heat dissipation space, and the stator mechanism 1 further includes a fan 126, where the fan 126 is disposed at the air inlet 112 and/or the air outlet 113.

In the present embodiment, as shown in fig. 1, 6 and 7, by providing the air inlet 112 and the air outlet 113 in the stator seat 11, the cold air flow is conveniently introduced into the heat dissipation space by using the air inlet 112 and is discharged from the air outlet 113, so as to provide a heat exchange effect, thereby improving the heat dissipation capability. It can be appreciated that by arranging the fan 126, the fan 126 is disposed at the air inlet 112 and/or the air outlet 113, so that the fan 126 is utilized to form a directional driving force for the air flow in the air inlet 112, the heat dissipation space and the heat dissipation channel formed by the air outlet 113, thereby accelerating heat exchange and further improving the heat dissipation effect.

It will be appreciated that the fan 126 may alternatively be a centrifugal fan. A fan 126 is optionally provided at the air outlet 113. Of course, in other embodiments, the fan 126 may be disposed at the air inlet 112. Alternatively, the fans 126 are disposed at the air inlet 112 and the air outlet 113, which is not limited herein.

In an embodiment, as shown in fig. 1, 6 and 7, the stator mechanism 1 further includes a check valve 127, where the check valve 127 is disposed at the air outlet 113, so that the check valve 127 can be utilized to enable the air flow in the heat dissipation channel formed by the air inlet 112, the heat dissipation space and the air outlet 113 to form a unidirectional flow.

In an embodiment, the stator mechanism 1 further includes a filter screen disposed at the air inlet 112 and/or the air outlet 113. It can be appreciated that the arrangement not only realizes heat exchange and heat dissipation of the current collecting device 100, but also plays a role in ash removal, thereby being beneficial to the transmission of large current.

Optionally, a filter screen is provided at the air inlet 112. Of course, in other embodiments, the filter screen may be disposed at the air inlet 112. Alternatively, the air inlet 112 and the air outlet 113 are provided with filter screens, which are not limited herein. In this embodiment, the specific structure of the filter screen may refer to the prior art, and will not be described herein.

In an embodiment, the stator mechanism 1 further comprises a shutter, which is provided at the air inlet 112 and/or the air outlet 113. It can be appreciated that the arrangement not only realizes heat exchange and heat dissipation of the current collecting device 100, but also plays a role in ash removal, thereby being beneficial to the transmission of large current.

It will be appreciated that the louvers may alternatively be provided at the air inlet 112. Of course, in other embodiments, the louvers may also be provided at the air inlet 112. Alternatively, louvers are provided at both the air inlet 112 and the air outlet 113, which are not limited herein. In this embodiment, the specific structure of the shutter may refer to the prior art, and will not be described herein.

In an embodiment, the rotor mechanism 2 further includes a rotor seat 22 and a steel ring 23, the rotor seat 22 is rotatably connected to the stator seat 11 and movably covers the notch of the accommodating groove 111, the plurality of rotor pieces 21 are connected with the rotor seat 22 and accommodated in the accommodating groove 111, and the steel ring 23 is disposed at the periphery of the rotor seat 22 and slidably abutted with the outer wall of the stator seat 11; in the locked state, the rolling members 425 are in rolling contact with the steel ring 23.

In this embodiment, as shown in fig. 1 and 3, by providing the rotor seat 22, the rotor seat 22 is used to mount and fix the plurality of rotor members 21 conveniently, that is, the plurality of rotor members 21 are integrated into one body, so as to realize an integrated modular structure, and facilitate processing and assembly. It will be appreciated that by arranging the steel ring 23 around the periphery of the rotor base 22, the steel ring 23 and the rotor base 22 cooperate to form a mounting groove structure, i.e. a plurality of rotor members 21 are located in the mounting groove and connected with the rotor base 22, and the steel ring 23 can be assembled with the stator base 11 in a limited sliding manner.

In an embodiment, each rotor member 21 includes a rotor 211, a fork assembly 212 and a connection row 213, the rotor 211 is provided with an electric shock surface, one end of the fork assembly 212 is connected to a side of the rotor 211 facing away from the electric shock surface, the other end of the fork assembly 212 is connected to the rotor base 22, one end of the connection row 213 is flexibly connected to the rotor 211 through a copper bar 123 wire, and the other end of the connection row 213 is used for connecting a cable.

In the present embodiment, as shown in fig. 3 and 4, the rotors 211 of the rotor member 21 may be selected to have a circular ring structure, so that the rotors 211 of the plurality of rotor members 21 are arranged in concentric circle structures having different diameters. The rotor 211 of the rotor member 21 may be coupled to the rotor base 22 by the yoke assembly 212, thereby improving the coupling stability of the rotor member 21 to the rotor base 22.

In order to further improve the connection stability between the rotor 211 and the rotor base 22, as shown in fig. 4, the fork assemblies 212 include a plurality of fork assemblies 212 that are circumferentially spaced along the rotor 211. In this embodiment, as shown in fig. 11, a protrusion 2111 is protruding from a side of the rotor 211 facing away from the fork assembly 212, and an electric shock surface is formed on a side of the protrusion 2111 facing away from the rotor member 21, so that the protrusion 2111 can conveniently extend into the sliding groove 1211 and dynamically abut against the spring contact finger 122.

It is understood that the width of the second gap formed between the adjacent two rotors 211 may be selected to be 15mm to 60mm. Alternatively, the width of the second gap is 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, etc., without limitation herein. On the one hand, the distance between the cables can be increased, the installation is convenient, and the breakdown of two poles can be prevented.

In the present embodiment, the connection between the connection rows 213 and the rotor 211 is a copper bus flexible connection, which is beneficial to current transmission, and provides a space for a certain axial movement of the rotor 211, thereby increasing the spatial adaptability of the mechanism. Optionally, each rotor 211 is connected with a plurality of connection rows 213, and the plurality of connection rows 213 are spaced apart along the circumference of the rotor 211.

Optionally, the plurality of connection rows 213 of the plurality of rotors 211 are spirally arranged along the radial direction, that is, the plurality of connection rows 213 of the plurality of rotors 211 are not overlapped in the radial direction, and the plurality of connection rows 213 are spirally arranged along the circumferential direction from the rotor 211 at the outermost ring to the rotor 211 at the innermost ring, so that the plurality of rotors 211 arranged in a concentric circle structure can not only increase the distance between cables, but also facilitate installation, and prevent breakdown of two poles.

In an embodiment, as shown in fig. 4, the fork assembly 212 includes a fork holder 2121, a fork rod 2122, a fork sleeve 2123 and a compression spring 2124, the fork holder 2121 is connected to a side of the rotor 211 facing away from the electric shock surface, the fork rod 2122 is sleeved on the fork holder 2121, the compression spring 2124 is installed between the fork holder 2121 and the fork rod 2122, the fork sleeve 2123 is sleeved on the fork rod 2122, and an end of the fork rod 2122 away from the fork holder 2121 is connected to the rotor holder 22.

In the present embodiment, the number of the fork assemblies 212 on each rotor 211 may be specifically set according to the diameter of the rotor 211, and the number of the fork assemblies 212 on the plurality of rotors 211 may be the same or different, which is not limited herein. It can be appreciated that, by arranging the shifting fork assembly 212 as the structure of the shifting fork seat 2121, the shifting fork rod 2122, the shifting fork sleeve 2123 and the compression spring 2124, the rotor 211 and the rotor seat 22 can be firmly connected, and the torque between the rotor seat 22 and the rotor 211 can be transmitted to drive the rotor to rotate. At the same time, compression springs 2124 also provide a compressive force to ensure a tight fit between rotor 211 and stator member 12.

In one embodiment, as shown in fig. 6, the outer wall of the stator seat 11 is provided with a wear-resistant ring 114, and the steel ring 23 is slidably abutted against the wear-resistant ring 114. It will be appreciated that the provision of the wear ring 114 helps to reduce wear between the rotor mechanism 2 and the stator housing 11 as the rotor mechanism 2 rotates relative to the stator housing 11. Optionally, the rotor seat 22 is disc-shaped, the steel ring 23 is circular, and the outer contour of the stator seat 11 is cylindrical, so that one end of the stator seat 11 adjacent to the notch of the accommodating groove 111 is conveniently inserted into the installation groove structure formed by matching the steel ring 23 and the rotor seat 22, and the steel ring 23 is in sliding abutting connection with the outer wall of the stator seat 11. Optionally, the wear ring 114 is disposed on the outer wall of the stator base 11 adjacent to the notch of the accommodating groove 111. The wear ring 114 is made of rubber or a material having wear resistance, which is not limited herein. The wear ring 114 may alternatively be annular in configuration.

In an embodiment, as shown in fig. 6 and 7, the notch of the stator base 11 adjacent to the accommodating groove 111 is further provided with a wear-resistant block 115, and the rotor base 22 is slidably abutted against the wear-resistant block 115. It will be appreciated that the provision of the wear blocks 115 helps to reduce wear between the rotor mechanism 2 and the stator housing 11 as the rotor mechanism 2 rotates relative to the stator housing 11. Optionally, a wear block 115 is provided on the top end surface of the stator base 11, thereby reducing wear between the rotor base 22 and the top end surface of the stator base 11.

Alternatively, the wear-resistant block 115 is made of a rubber material or a material having wear-resistant properties, which is not limited herein. Alternatively, the wear-resistant blocks 115 include a plurality of wear-resistant blocks 115 arranged at intervals in the circumferential direction of the stator base 11.

In an embodiment, as shown in fig. 1, 3 and 4, the rotor seat 22 is provided with a via hole 221 corresponding to the connection row 213, the connection row 213 includes a wire row 2131, a busbar 2132 and a fixing block 2133, one end of the wire row 2131 is connected to a side of the rotor seat 22 facing the rotor 211 through the fixing block 2133, the busbar 2132 is sleeved outside the wire row 2131, and the other end of the wire row 2131 passes through the via hole 221 and is connected with a cable. It can be appreciated that the busbar 2132 is sleeved on the connection busbar 213, and the busbar 2132 can be made of an insulating material, so that the bushing made of the insulating material can avoid current breakdown and increase the insulation strength of the structure. The number of the connection rows 213 on the plurality of rotors 211 may be the same or different, and is not limited herein.

In the related art, for example, in an electrically conductive slip ring disclosed in CN111682383a, a slip ring structure specially used for improving wear between brush filaments and a chute is disclosed. According to the structure, the contact surface of each electric brush and the corresponding conductive sliding groove is changed through the adjusting mechanism, so that the service life of the conductive sliding ring is prolonged, but the structure is not stable enough, the creepage distance is small, and two poles are easy to break down under the wind power high-current environment.

In an embodiment, the rotor mechanism 2 further includes a separating assembly 24, where the separating assembly 24 includes a mounting block 241 and a plurality of partition plates 244, the mounting block 241 is connected to the rotor base 22, and the plurality of partition plates 244 are disposed at concentric circles and connected to the mounting block 241, respectively, and each partition plate 244 is located in a second gap.

In the present embodiment, as shown in fig. 3 and 5, by providing the partition assembly 24, the respective two rotors 211 and the adjacent two stator pieces 12 are partitioned by the partition plate 244 of the partition assembly 24, so that the creepage distance between each phase is increased, and the function of preventing the current breakdown is performed. It can be appreciated that the partition assembly 24 is fixedly connected with the rotor base 22 through the mounting block 241, so as to improve the mounting stability of the partition assembly 24, and simultaneously, the plurality of partition plates 244 are conveniently fixed by using the mounting block 241, and the plurality of partition plates 244 are arranged at concentric circles.

It will be appreciated that each spacer 244 is located in a second gap, and each spacer 244 is disposed in turn through the second gap and the first gap 1215 when the rotor mechanism 2 is rotatably coupled to the stator base 11. I.e. each spacer plate 244 is located between two adjacent rotor members 21 and two adjacent stator members 12.

In the present embodiment, as shown in fig. 5, the mounting block 241 includes a plurality of mounting blocks 241, and the plurality of mounting blocks 241 are arranged at intervals in the circumferential direction of the partition plate 244. It will be appreciated that the mounting block 241 includes a mounting portion 242 and a boss 243 protruding from the mounting portion 242, the boss 243 being connected to the rotor base 22, the mounting portion 242 extending in a radial direction and being connected to a plurality of spacer plates 244, respectively.

In order to conveniently realize the connection and fixation of the partition plates 244 and the mounting blocks 241, as shown in fig. 5, each partition plate 244 comprises a cylindrical portion 245 and a plurality of lug portions 246, the cylindrical portion 245 is cylindrical with two ends open, the plurality of lug portions 246 are arranged at intervals at one end of the cylindrical portion 245 in a protruding mode, each lug portion 246 is provided with a mounting groove 247, and part of the mounting blocks 241 are limited in the mounting grooves 247. Alternatively, the plurality of lug portions 246 of the plurality of partition plates 244 are disposed correspondingly in the radial direction.

In one embodiment, as shown in fig. 1 and 3, the rotor mechanism 2 further includes an oil drain 25 and an oil injector 26, the oil drain 25 is connected to the rotor base 22 and disposed corresponding to the rotor member 21, the oil injector 26 is connected to an end of the oil drain 25 remote from the rotor base 22, and the oil injector 26 is used for supplying grease to the rotor member 21. It will be appreciated that by providing the oil drain 25 and the lubricator 26, the lubricator 26 facilitates accurate and stable supply of lubricating oil through the pipe to ensure stability of the current collector 100.

In an embodiment, the current collecting device 100 further includes a weak current slip ring 3, the rotor mechanism 2 is further provided with a first through hole 222, the stator mechanism 1 is provided with a second through hole 116 corresponding to the first through hole 222, the second through hole 116 penetrates through the bottom wall of the accommodating groove 111, and the weak current slip ring 3 sequentially penetrates through the first through hole 222 and the second through hole 116.

In the present embodiment, as shown in fig. 1, 3, 6, and 7, the weak current collector 3 is disposed in the center of the entire current collector 100. When the current collecting device 100 is arranged on the wind generating set, the weak current slip ring 3 is used for power electric transmission and control signal interaction between the top of the wind tower and the base member.

The current collector 100 of the present invention is applicable to a case where the rotor is slow in rotation speed, such as yaw of a fan, and is required to be able to withstand a high current, and has a stable and simple structure. The current collector 100 can complete dynamic current transmission between a rotating part driven by the yaw of the fan and a static wire fixed in a tower of the fan under the condition of high current of wind power generation through the combination of the rotor mechanism 2, the stator mechanism 1, the weak current slip ring 3 and the cable seat 124, and the safety performance of the high current conductive slip ring is improved by arranging the stator assembly and the rotor member 21 into a concentric circle structure and adding a partition plate structure such as a partition assembly 24. Meanwhile, the stability and the service life of the conductive slip ring are improved through the ball bearing of the locking assembly 4, the compression spring 2124 of the shifting fork assembly 212 and other structures.

It will be appreciated that the securing member 41 of the locking assembly 4 is fixedly connected to the stator mechanism 1. The fixing member 41 and the locking member 42 are connected with the bolt with holes through locknuts. The locking member 42 is formed with a groove to allow the locking member 42 to move up and down. The locking member 42 is driven to move downwards to the structural dead point by manually pressing the handle to the vertical state, so that the locking between the rotor mechanism 2 and the stator mechanism 1 is realized. Lifting the handle drives the locking member 42 to move upwards to release the rotor mechanism 2 and the stator mechanism 1. The mode can realize the rapid compression between the stator and the rotor and prevent abnormal vibration.

The locking component 4 is contacted with the rotor mechanism 2 through a cam bearing, and when the rotor mechanism 2 rotates, the cam bearing greatly reduces friction and abrasion and improves the stability of the structure. The fastening glue is coated between the inner ring of the cam bearing and the shaft, so that the cam bearing is prevented from falling off and is prevented from being disassembled meaninglessly. The nut is a locknut, and is matched with the bolt with holes, and lead seals are arranged on the bolt with holes and used for locking the locknut to avoid looseness. And screw thread fastening glue is coated between the nut and the bolt, so that the stability of the structure is further improved, and meaningless disassembly is avoided.

The invention also provides a wind generating set, which comprises a tower, a cabin and a current collecting device 100, wherein the specific structure of the current collecting device 100 refers to the embodiment, and the wind generating set adopts all the technical schemes of all the embodiments, so that the wind generating set at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

In the present embodiment, the nacelle is rotatably connected to the tower, the nacelle is provided with a generator, the rotor mechanism 2 of the current collector 100 is provided in the nacelle and is connected to the generator, and the stator mechanism 1 of the current collector 100 is connected to the tower. It will be appreciated that the end of the tower remote from the nacelle is fixed to the ground, and the nacelle is provided with a plurality of blades, so that the blades of the nacelle are rotated by wind in the high altitude to drive the rotor mechanism 2 of the current collector 100 to rotate relative to the stator mechanism 1.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. A current collecting device for a wind power generator set, the current collecting device comprising:

a stator mechanism;

in the released state, the rolling element is remote from the rotor mechanism.

2. The current collector of claim 1 wherein the locking assembly comprises:

the fixing piece is connected to the outer wall of the stator mechanism;

3. The current collecting device according to claim 2, wherein a mounting hole is formed in one end of the locking member away from the adjusting member, the rolling member is a cam bearing, a bolt end of the cam bearing is inserted into the mounting hole, and in the locked state, a bearing end of the cam bearing is in rolling contact with the rotor mechanism;

4. The current collecting device according to claim 2, wherein the locking member is provided with a movable groove, a rotating shaft is arranged in the movable groove, the fixing member is convexly provided with a rotating connecting lug corresponding to the movable groove, one end of the adjusting member is rotationally connected with the rotating connecting lug through the rotating shaft and rotationally sleeved on the rotating shaft, and the other end of the adjusting member is provided with a handle;

5. The current collecting device according to claim 2, wherein the locking member is provided with a locking hole, the fixing member is provided with a moving hole, and the locking assembly further comprises a locking member, which is sequentially inserted into the moving hole and the locking hole;

6. The current collecting device according to any one of claims 1 to 5, wherein the lock assembly includes a plurality of the lock assemblies disposed at intervals in a circumferential direction of the outer wall of the stator mechanism.

7. A wind power generation set, the wind power generation set comprising:

a tower;

A current collector according to any one of claims 1 to 6, wherein the rotor means of the current collector is provided in the nacelle and is connected to the generator, and the stator means of the current collector is connected to the tower.