CN220172548U

CN220172548U - Current collecting device and wind generating set

Info

Publication number: CN220172548U
Application number: CN202321705725.1U
Authority: CN
Inventors: 曹小金; 王成; 王玉明; 卢玉婷
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: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-12-12
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a current collecting device and a wind generating set, wherein the current collecting device comprises a rotor mechanism, a stator mechanism and a vibration sensor, wherein the rotor mechanism is provided with an electric shock surface, the stator mechanism is provided with a conductive surface, and the vibration sensor is arranged on the stator mechanism and is used for detecting the vibration of the stator mechanism; the rotor mechanism is rotationally connected with the stator mechanism, so that the electric shock surface is communicated with the conductive surface. The technical scheme of the utility model aims to enable the current collecting device to transmit vibration signals inside the current collecting device to the outside when the current collecting device works, so as to pre-warn the vibration problem of the current collecting device.

Description

Current collecting device and wind generating set

Technical Field

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

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 at the moment, the dynamic transmission of current is required to be realized between the rotating wind power cabin and the fixed tower through the current collecting device.

Due to the specificity of the wind power generation field, the current collecting device inevitably has local temperature rise in the working process, so that the internal temperature of the current collecting device is too high, carbon brush abrasion, the situation that abrasion impurities enter the conductive interface of the stator and the rotor of the current collecting device and the like occur, and the problems of poor contact, vibration and the like of the stator and the rotor are generated; meanwhile, the stator and the rotor of the current collecting device are easy to loose under the condition of long-term relative rotation, so that the stator and the rotor are in improper stress contact and generate vibration, the slip rings of the stator and the rotor are damaged, and the service life of the current collecting device is influenced.

Disclosure of Invention

The utility model mainly aims to provide a current collecting device and a wind generating set, and aims to enable the current collecting device to transmit internal vibration signals of the current collecting device to the outside when the current collecting device works, so that the vibration problem of the current collecting device can be early warned in advance.

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

the stator mechanism is provided with a conductive surface;

the rotor mechanism is provided with an electric shock surface, and the rotor mechanism is rotationally connected with the stator mechanism so as to conduct the electric shock surface with the conductive surface; a kind of electronic device with high-pressure air-conditioning system

And the vibration sensor is arranged on the stator mechanism and is used for detecting the vibration of the stator mechanism.

In an embodiment, the stator mechanism includes a stator base and a plurality of stator pieces, the stator base is provided with a receiving groove, the plurality of stator pieces are concentric circles and are arranged in the receiving groove at intervals, each stator piece is provided with the conductive surface, and the vibration sensor is detachably connected to the outer wall of the stator base.

In an embodiment, the vibration sensor is provided with a screw, a threaded hole is formed in the side wall of the stator base, and the screw is in threaded connection with the threaded hole, so that the vibration sensor and the stator are detachably connected.

In an embodiment, the vibration sensors are at least four, and at least four vibration sensors are uniformly arranged on the side wall of the stator base along the circumferential direction of the stator base.

In an embodiment, the current collecting device further comprises a temperature sensor, the stator piece comprises a stator and a stator connecting row connected with the stator, the stator is provided with the conductive surface, the stator connecting row is used for connecting a cable, and the temperature sensor is arranged in the stator connecting row.

In one embodiment, the temperature sensor is glued to the stator connection row by means of a glue.

In an embodiment, each stator is provided with at least two stator connection rows, and the temperature sensor is arranged in at least one stator connection row of each stator.

In an embodiment, the rotor mechanism comprises a rotor seat and a plurality of rotor pieces, wherein the rotor seat is provided with an installation cavity, the rotor pieces are arranged in the installation cavity at intervals of concentric circles, a rotor gap is formed between every two adjacent rotor pieces, and each rotor piece is provided with an electric shock surface.

In an embodiment, each rotor member further includes a rotor, a rotor connection row and a rotor copper bar, the rotor is provided with the electric shock surface, one end of the rotor connection row is flexibly connected to the rotor through the rotor copper bar, and the other end of the rotor connection row penetrates through the rotor seat and is used for connecting a cable.

The utility model also provides a wind generating 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 technical scheme, the vibration sensor is arranged on the stator seat in the stator mechanism of the current collector, and can collect vibration signals of the stator seat, so that the vibration signals inside the current collector are transmitted to the outside, monitoring personnel can early warn the vibration problem of the current collector, the vibration problem of the current collector is prevented, the slip rings of the stator mechanism and the rotor mechanism are damaged, and the service life of the current collector is influenced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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 utility model, 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 utility model;

FIG. 2 is a schematic diagram of a stator base according to an embodiment of the present utility model;

FIG. 3 is a schematic top view of a stator base according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a stator assembly according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a stator mechanism according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a rotor mechanism according to an embodiment of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Current collector	21	Rotor seat
1	Stator mechanism	211	Mounting cavity
				11	Stator base	22	Rotor part
111	Accommodating groove	221	Rotor
				12	Stator part	222	Rotor connecting row
121	Stator	223	Rotor copper bar
				122	Stator connecting row	3	Vibration sensor
2	Rotor mechanism	4	Temperature sensor

The achievement of the objects, functional features and advantages of the present utility model 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 utility model 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 utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model 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.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

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 meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. 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 utility model.

Referring to fig. 1 to 6, the present utility model proposes a current collecting device 100 for a wind turbine generator, wherein the current collecting device 100 includes a stator mechanism 1, a rotor mechanism 2 and a vibration sensor 3, the stator mechanism 1 is provided with a conductive surface, the rotor mechanism 2 is provided with an electric shock surface, the rotor mechanism 2 is rotationally connected with the stator mechanism 1 so as to conduct the electric shock surface with the conductive surface, and the vibration sensor 3 is disposed on the stator mechanism 1 for detecting vibration of the stator mechanism 1.

In this embodiment, as shown in fig. 1, the current collecting device 100 includes a stator mechanism 1 and a rotor mechanism 2, where the stator mechanism 1 is fixedly connected to the tower, i.e. the stator mechanism 1 is a static mechanism, the rotor mechanism 2 is connected to a yaw mechanism of the wind driven generator through a cable and rotates with the yaw mechanism, the stator mechanism 1 and the rotor mechanism 2 are conducted through a conductive surface and an electric shock surface, a vibration sensor 3 is disposed on the stator mechanism 1, the vibration sensor 3 is communicated with an external data processing device, and the vibration sensor 3 transmits vibration data of the stator mechanism 1 to the data processing device so that a detecting person can monitor the vibration state of the stator mechanism 1 at any time, thereby judging whether the current collecting device 100 is in a normal working state, enabling the detecting person to early warn about the vibration problem of the current collecting device 100 in advance, preventing the current collecting device 100 from generating vibration, so that the slip rings formed by the stator mechanism 1 and the rotor mechanism 2 are damaged, and the service life of the current collecting device 100 is affected.

In practical implementation, the vibration sensor 3 on the stator mechanism 1 can collect vibration information of the stator mechanism 1 in real time, and transmit the vibration information to an external data processing device through an electrical connection, the data processing device processes and analyzes whether the stator mechanism 1 has vibration problems, and if the current collecting device 100 has vibration problems, the data processing device provides an early warning signal for monitoring staff.

In one embodiment, the stator mechanism 1 includes a stator base 11 and a plurality of stator pieces 12, the stator base 11 is provided with a receiving groove 111, the plurality of stator pieces 12 are arranged in the receiving groove 111 at intervals of concentric circles, each stator piece 12 is provided with a conductive surface, and the vibration sensor 3 is detachably connected to the outer wall of the stator base 11.

In this embodiment, as shown in fig. 4 and 5, a plurality of stator pieces 12 are disposed in the accommodating groove 111 of the stator base 11 at intervals, the stator pieces 12 and the stator base 11 enclose to form a heat dissipation space, the stator mechanism 1 can sufficiently and effectively dissipate heat generated by electric transmission of the stator pieces 12 by using the heat dissipation space, and the vibration sensor 3 is detachably disposed on the outer wall of the stator base 11, so that the vibration sensor 3 is convenient to overhaul and replace under the condition that vibration information of the stator mechanism 1 can be accurately collected.

In practical implementation, the stator base 11 may have a cylindrical structure with an opening at one end, the accommodating groove 111 may have a groove structure or a through groove structure, which is not limited herein, the conductive surfaces of the plurality of stator members 12 are disposed opposite to the bottom wall of the stator base 11, 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 and the conductive surface are always kept in contact when the rotor mechanism 2 rotates or rotates relative to the stator base 11, and thus the current collector 100 forms dynamic power transmission.

In one embodiment, the vibration sensor 3 is provided with a screw, and the sidewall of the stator seat 11 is provided with a screw hole, and the screw is screwed with the screw hole, so that the vibration sensor 3 and the stator 121 are detachably connected.

In this embodiment, as shown in fig. 2, the vibration sensor 3 is provided with a screw, and the screw thread on the screw and the screw thread in the threaded hole can be matched, so that the vibration sensor 3 is detachably connected to the side wall of the stator seat 11, and the vibration sensor 3 is convenient to disassemble, assemble, repair and replace.

In practical implementation, the side wall of the stator seat 11 can be provided with a buckle, the vibration sensor 3 can be connected to the stator seat 11 through the buckle in a clamping manner, the side wall of the stator seat 11 can be provided with a limit groove, the vibration sensor 3 is arranged in the limit groove, the vibration sensor 3 is arranged more firmly, and the vibration sensor 3 is prevented from falling off when the current collector 100 operates.

In an embodiment, at least four vibration sensors 3 are disposed, and at least four vibration sensors 3 are uniformly disposed on the side wall of the stator base 11 along the circumferential direction of the stator base 11.

In this embodiment, as shown in fig. 2 and 3, the number of the vibration sensors 3 is at least four, and at least four vibration sensors 3 are uniformly arranged along the circumferential direction of the stator seat 11, so that the vibration sensors 3 can collect vibration information around the stator mechanism 1, and the actual vibration condition of the stator mechanism 1 is comprehensively determined by analyzing multiple groups of vibration information in multiple directions, so that early warning information obtained by monitoring personnel is more accurate.

In practical implementation, the number of the vibration sensors 3 may be six, eight, twelve, etc., and the plurality of vibration sensors 3 may be divided into two or more rows and uniformly arranged along the circumferential direction of the stator base 11, so as to collect more and more accurate vibration information of the stator mechanism 1, so that the vibration pre-warning of the current collecting device 100 is more accurate.

In an embodiment, the current collecting device 100 further comprises a temperature sensor 4, the stator member 12 comprises a stator 121 and a stator connection row 122 connected to the stator 121, the stator 121 is provided with a conductive surface, the stator connection row 122 is used for connecting cables, and the temperature sensor 4 is arranged in the stator connection row 122.

In this embodiment, as shown in fig. 1 and 4, the current collecting device 100 may further be provided with a temperature sensor 4, the stator connecting row 122 is used as an intermediate connecting member for connecting the stator 121 and the cable, the temperature sensor 4 is provided on the stator connecting row 122 and can reflect the working temperature of the stator member 12 more accurately, and the temperature sensor 4 is provided on the stator connecting row 122 and can monitor the temperature change condition of the stator member 12 during electric transmission. The temperature sensor 4 is electrically connected with an external temperature display device, and temperature information received by the temperature sensor 4 can be displayed on the temperature display device in real time, so that monitoring staff can monitor the temperature inside the current collecting device 100 in real time to judge whether the current collecting device 100 is at a normal working temperature or not.

In practical implementation, different types and different models of temperature sensors 4 can be selected according to the limit temperature of the practical current collecting device 100 and the minimum accuracy of the required monitoring temperature so as to select the most suitable temperature sensor 4, the current collecting device 100 can be provided with the vibration sensor 3 and the temperature sensor 4 at the same time, and the vibration sensor 3 and the temperature sensor 4 are arranged on the stator mechanism 1 to collect and transmit the vibration signal and the temperature signal of the stator mechanism 1 to the outside.

In one embodiment, the temperature sensor 4 is glued to the stator connection row 122.

In this embodiment, as shown in fig. 1 and 4, the temperature sensor 4 may be adhered to the stator connecting row 122 by a high temperature resistant adhesive, so as to prevent the working temperature of the stator mechanism 1 from being too high, and the temperature sensor 4 is separated from the stator connecting row 122. In practical implementation, the stator connecting row 122 may be provided with a mounting groove for limiting and mounting the temperature sensor 4, so as to prevent the temperature sensor 4 from falling off from the stator mechanism 1 when the current collecting device 100 is operated.

In one embodiment, each stator 121 is provided with at least two stator connection rows 122, and the temperature sensor 4 is provided in at least one stator connection row 122 of each stator.

In the present embodiment, as shown in fig. 1 and 4, one stator 121 corresponds to at least two stator connection rows 122, and a plurality of stator connection rows 122 are arranged 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. By providing the stator connecting row 122 on the stator 121, the stator connecting row 122 may be selected from a copper wire row, a spring plate, a conductive connection plate, etc., and the current transmitted from the rotor mechanism 2 to the stator 12 is electrically transmitted by the stator connecting row 122, which is not limited herein.

In one embodiment, the rotor mechanism 2 includes a rotor seat 21 and a plurality of rotor members 22, the rotor seat 21 is provided with a mounting cavity 211, the plurality of rotor members 22 are arranged in the mounting cavity 211 at concentric circle intervals, a rotor gap is formed between two adjacent rotor members 22, and each rotor member 22 is provided with an electric shock surface.

In this embodiment, as shown in fig. 1, 5 and 6, the rotor seat 21 is provided with a mounting cavity 211, a rotor member 22 is provided in the mounting cavity 211, the rotor member 22 is provided with an electric shock surface, the rotor seat 21 provided with the rotor member 22 is detachably covered on a notch of the accommodating groove 111 of the stator seat 11 provided with the stator member 12, when the rotor mechanism 2 is rotationally connected with the stator mechanism 1, the electric shock surface of the rotor member 22 is conducted with the conductive surface of the stator member 12 in the accommodating groove 111 at this time, so that when the rotor mechanism 2 rotates or rotates relative to the stator mechanism 1, the electric shock surface of the rotor mechanism 2 and the conductive surface of the stator mechanism 1 are always in a conducting state, thereby realizing dynamic transmission of electric power from the rotor mechanism 2 to the stator mechanism 1.

In an embodiment, each rotor member 22 further includes a rotor 221, a rotor connection row 222 and a rotor copper bar 223, the rotor 221 is provided with an electric shock surface, one end of the rotor connection row 222 is flexibly connected to the rotor 221 through the rotor copper bar 223, and the other end of the rotor connection row 222 penetrates through the rotor seat 21 for connecting a cable.

In this embodiment, as shown in fig. 6, the rotor 221 of the rotor member 22 may be selected to have a circular ring structure, so that the rotors 221 of the rotor members 22 are arranged to have concentric circular structures with different diameters, and the connection between the rotor connection row 222 and the rotor 221 is a flexible connection of the rotor copper bar 223, which is beneficial to current transmission, and provides a space for a certain axial movement of the rotor 221, thereby increasing the space adaptability of the rotor mechanism 2. Alternatively, each rotor 221 is connected with a plurality of rotor connecting rows 222, and the plurality of rotor connecting rows 222 are arranged at intervals along the circumferential direction of the rotor 221.

Optionally, the plurality of rotor connection rows 222 of the plurality of rotors 221 are spirally arranged along the radial direction, that is, the plurality of rotor connection rows 222 of the plurality of rotors 221 are arranged in a non-overlapping manner along the radial direction, from the outermost rotor 221 to the innermost rotor 221, the plurality of rotor connection rows 222 are spirally arranged along the circumferential direction, so that the plurality of rotors 221 arranged in a concentric circle structure can not only increase the distance between cables, but also facilitate installation, and can also prevent breakdown of two poles.

The utility model 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 an embodiment, the wind generating set comprises a tower, a nacelle and the above-mentioned current collecting device 100, wherein the nacelle is rotatably connected with the tower, the nacelle is provided with a generator, the rotor mechanism 2 of the current collecting device 100 is arranged in the nacelle and is connected with the generator, and the stator mechanism 1 of the current collecting device 100 is connected with 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 preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

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

the stator mechanism is provided with a conductive surface;

2. The current collector of claim 1 wherein the stator mechanism comprises a stator base and a plurality of stator members, the stator base having a receiving slot, the plurality of stator members being concentrically and circularly spaced apart from the receiving slot, each of the stator members having the conductive surface, the vibration sensor being removably attached to the outer wall of the stator base.

3. The current collector of claim 2 wherein the vibration sensor is provided with a threaded rod, the side wall of the stator base is provided with a threaded hole, and the threaded rod is screwed with the threaded hole so that the vibration sensor and the stator base are detachably connected.

4. A current collector as claimed in claim 3 wherein at least four of said vibration sensors are provided, and at least four of said vibration sensors are uniformly provided on a side wall of said stator base in a circumferential direction of said stator base.

5. The current collecting device according to claim 2, further comprising a temperature sensor, wherein the stator member comprises a stator provided with the conductive surface and a stator connection row provided in connection with the stator, the stator connection row being for connecting a cable, and the temperature sensor is provided in the stator connection row.

6. The current collector of claim 5 wherein the temperature sensor is glued to the stator connection row.

7. The current collector of claim 6 wherein each of said stators is provided with at least two rows of said stator connections, said temperature sensor being provided in at least one row of said stator connections of each of said stators.

8. A current collector as claimed in any one of claims 1 to 7 wherein the rotor mechanism comprises a rotor seat and a plurality of rotor members, the rotor seat being provided with a mounting cavity, the plurality of rotor members being arranged in the mounting cavity at concentric circular intervals, a rotor gap being formed between two adjacent rotor members, each rotor member being provided with the contact surface.

9. The current collector of claim 8 wherein each of said rotor members further comprises a rotor, a rotor connecting row and a rotor copper bar, said rotor being provided with said electrical contact surface, one end of said rotor connecting row being flexibly connected to said rotor by said rotor copper bar, and the other end of said rotor connecting row extending through said rotor base for connecting a cable.

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

a tower;

A current collector according to any one of claims 1 to 9, the rotor means of the current collector being provided in the nacelle and being connected to the generator, the stator means of the current collector being connected to the tower.