Yaw collector ring stator structure with drainage structure
By introducing a drainage frame and step-layered design into the yaw collector ring stator structure, the resistance loss and excessive wiring caused by series drainage of multi-layer conductive rings is solved, and the convenience of stable extraction and maintenance of the conductive ring current is achieved.
Patent Information
- Application Number
- CN202420419524.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-03-05
AI Technical Summary
In the existing yaw collector ring stator structure, the multi-layer conductive ring is connected in series with a cable, resulting in excessive resistance loss; if each layer of conductive ring leads to current alone, there will be too many wiring, which will be difficult to maintain, and may generate electromagnetic interference, affecting the stability of the current.
A yaw collector ring stator structure with a drainage structure is designed, and the conductive ring is connected through the drainage rack. The drainage rack is designed with a stepped layered cable arrangement, which avoids electromagnetic interference and is convenient for maintenance.
The uniform and stable current extraction of each conductive ring is achieved, which reduces resistance loss, improves the stability of current transfer, and simplifies the maintenance process.
Smart Images
Figure CN222674090U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of yaw collector rings of generators, in particular to a yaw collector ring stator structure with a drainage structure. Background Art
[0002] With the continuous development of wind power generation systems in my country, the wind power industry has higher requirements for the reliability of wind turbines. The yaw collector ring is an important structure in the wind power generation system, which solves the cable twisting problem when the nacelle of the wind turbine rotates with the wind direction.
[0003] The current generated in the cabin flows along the path of the rotor group of the yaw collector ring - brush - stator assembly - energy storage device. In order to ensure the stable transmission of current between the rotor group and the stator group, several layers of conductive rings are arranged in the stator group. The current on the rotor group is divided among the conductive rings. Even if a single conductive ring fails, it will not affect the transmission of current, thus ensuring the stability of current transmission. The multi-layer conductive rings improve the stability of current transmission between the rotor group and the stator group, but the multi-layer conductive rings are connected in series with one cable to drain the current, and the resistance loss is too large; if each layer of conductive ring draws out the current separately, there will be too many wirings, and the mutual electromagnetic interference will affect the stability of the current, and it will be difficult to maintain. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a yaw collector ring stator structure with a current diversion structure, so as to evenly and stably lead out the current on each conductive ring.
[0005] To achieve the above purpose, the technical solution of the utility model is as follows:
[0006] A yaw collector ring stator structure with a drainage structure comprises a conductive ring and a lead row, wherein:
[0007] A plurality of the conductive rings are arranged in a vertical direction;
[0008] The lead-out row includes a number of drain racks corresponding to the number of the conductive rings, each drain rack is connected to a conductive ring separately, and the horizontal orientations of the ends of the drain racks away from the conductive rings are consistent;
[0009] From the distal end to the proximal end, the end of the guide frame away from the conductive ring gradually approaches the conductive ring.
[0010] Furthermore, a plurality of connection terminals are arranged at one end of the drain rack away from the conductive ring.
[0011] Furthermore, adjacent drain racks are grouped in pairs, and the connection terminals on different drain racks in the same group are staggered in the vertical direction.
[0012] Furthermore, the distances between the connection terminals on the drain racks in the same group and the conductive rings to which they are connected are all the same.
[0013] Furthermore, an insulating plate is provided between adjacent conductive rings.
[0014] Furthermore, a column is included, and a plurality of the conductive rings are sleeved on the column.
[0015] Furthermore, the column includes a core rod and a plurality of sleeves sleeved on the core rod.
[0016] Furthermore, an annular groove is horizontally provided on the sleeve.
[0017] Furthermore, the lead-out row also includes an insulating support plate, and the insulating support plate is connected to a plurality of the lead-out racks at the same time.
[0018] Furthermore, an extension portion is horizontally arranged on the conductive ring.
[0019] Compared with the prior art, the beneficial technical effects of the utility model are as follows:
[0020] (1) In the utility model, a yaw collector ring stator structure with a drainage structure is provided, and the cable is connected to the conductive ring through a drainage rack to prevent the cable from being too close to other conductive rings to generate electromagnetic interference. The drainage rack is arranged in a stepped manner at one end away from the conductive ring. After the cables are connected to the drainage rack, they can be arranged in layers step by step. The neatly arranged cables ensure stable circuit operation and are also convenient for later maintenance.
[0021] (2) Furthermore, the adjacent drain racks are arranged in pairs, and the wiring terminals on different drain racks in the same group are staggered in the vertical direction, and the distances from the wiring terminals on the drain racks in the same group to the conductive rings connected thereto are consistent, so that more wiring terminals can be evenly arranged in a limited space, thereby improving space utilization.
[0022] (3) Furthermore, the stator lead row is an integral structure, which reduces the installation transition. After it is installed and fixed on the conductive ring, it also enhances the stability of the connection between different conductive rings, so that it can work stably and is not easy to loosen or fall off. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A three-dimensional structural schematic diagram of a yaw collector ring stator structure with a drainage structure provided in Embodiment 1 of the utility model is shown.
[0024] Figure 2 A schematic diagram of the three-dimensional structure of a central column in a yaw collector ring stator structure with a drainage structure provided in the first embodiment of the utility model is shown.
[0025] Figure 3 A schematic structural diagram of a yaw collector ring stator structure with a drainage structure provided in the second embodiment of the present utility model is shown.
[0026] Markings in the accompanying drawings:
[0027] 1. Conductive ring; 11. Extension; 2. Insulating plate; 3. Column; 31. Core rod; 32. Sleeve; 321. Annular groove; 4. Lead-out row; 41. Drainage rack; 411. Terminal block; 412. Bolt; 42. Insulating support plate; 5. Brush. DETAILED DESCRIPTION
[0028] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.
[0029] In the description of the present invention, the orientations or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] In order to more clearly describe the structure of the yaw collector ring stator structure with a drainage structure, the present invention defines the terms "distal end" and "proximal end". Specifically, the "distal end" refers to the end away from the ground, and the "proximal end" refers to the end close to the ground. Figure 1 For example, Figure 1 The end closer to the upper plane is the distal end. Figure 1 The end closer to the lower plane is the proximal end.
[0031] Embodiment 1
[0032] Please refer to Figure 1, a yaw collector ring stator structure with a drainage structure, comprising a conductive ring 1 and a lead-out row 4, wherein several conductive rings 1 are arranged in a vertical direction. The lead-out row 4 comprises a number of drain racks 41 corresponding to the number of conductive rings 1, each drain rack 41 is connected to a conductive ring 1 separately, and the horizontal orientation of the ends of the drain racks 41 away from the conductive ring 1 is consistent. From the far end to the near end, the end of the drain rack 41 away from the conductive ring 1 gradually approaches the conductive ring 1. Specifically, the conductive ring 1 arranged in multiple layers can increase the collector area and improve the energy collection efficiency; the current is shunted to multiple conductive rings 1 to reduce the loss of resistance; multiple conductive rings 1 work at the same time to ensure system reliability. The cable is connected to the conductive ring 1 through the drain rack 41 to avoid the cable being directly connected to the conductive ring 1 and being too close to other conductive rings 1 to generate electromagnetic interference. And from the far end to the near end, the end of the drain rack 41 away from the conductive ring 1 gradually approaches the conductive ring 1, which is convenient for arranging the cables in layers and levels on the lead-out row 4. The neatly arranged cables ensure stable circuit operation and are also convenient for maintenance. The lead-out bar 4 is an integral structure, and after being installed and fixed on the conductive ring 1, the stability of the conductive ring 1 can be enhanced, so that the conductive ring 1 can work stably and is not easy to loosen or fall off.
[0033] The specific structure of the lead-out row 4 and the conductive ring 1 is described below:
[0034] Please refer to Figure 1 , a plurality of wiring terminals 411 are arranged at one end of the drain frame 41 away from the conductive ring 1. Specifically, the number of the wiring terminals 411 can be three, and the multiple wiring terminals 411 balance the load and have better expandability. The wiring terminals 411 are fixed to the drain frame 41 by bolts 412.
[0035] Please refer to Figure 1 An insulating plate 2 is provided between adjacent conductive rings 1, and the insulating plate 2 isolates each conductive ring 1 to avoid electromagnetic interference between each conductive ring 1 and improve circuit stability. Specifically, a connecting plate (not marked in the figure) is also provided on the conductive ring 1, and the connecting plate connects the conductive plate (not marked in the figure) to form the conductive ring 1, which reduces the material cost of the conductive ring 1 while ensuring the conductive performance of the conductive ring 1.
[0036] Please refer to Figure 1 The lead-out row 4 further includes an insulating support plate 42 , and the insulating support plate 42 is simultaneously connected to a plurality of drain racks 41 to enhance the stability of the lead-out row 4 .
[0037] Please refer to Figure 1 An extension portion 11 is horizontally arranged on the conductive ring 1 , and the extension portion 11 facilitates the connection between the drain frame 41 and the conductive ring 1 .
[0038] The specific structure of the column 3 is described below:
[0039] Please refer to Figure 1, and also includes a column 3, and a plurality of conductive rings 1 are sleeved on the column 3. Specifically, a plurality of conductive rings 1 are sleeved on the column 3 at the same time, and are restricted in horizontal position by the column 3 to form a stator group.
[0040] Please refer to Figure 1 and Figure 2 The column 3 includes a core rod 31 and a plurality of sleeves 32 sleeved on the core rod 31. Specifically, the conductive ring 1 is sleeved on the core rod 31, and the core rods 31 between adjacent conductive rings 1 are sleeved with sleeves 32, which limit the gap between adjacent conductive rings 1 to facilitate installation and positioning.
[0041] Please refer to Figure 1 and Figure 2 , an annular groove 321 is horizontally provided on the sleeve 32. Specifically, a plurality of insulating plates 2 are spliced end to end into a ring shape, and arc grooves (not marked in the figure) are respectively provided at both ends of the length of the insulating plate 2, and the arc grooves are inserted into the annular groove 321 and fixed on the sleeve 32, so as to fix the insulating plate 2 and the column 3.
[0042] The specific working process of the utility model is as follows:
[0043] When transmitting current, the rotor group (not shown in the figure) transmits the current to different conductive rings 1 through the brushes 5 and flows to the current guide racks 41 connected thereto respectively. In this process, the insulating plate 2 isolates the adjacent conductive rings 1 to avoid electromagnetic interference between the conductive rings 1. The current flowing to the current guide rack 41 is then led out along the connection terminal 411.
[0044] It can be seen that in the above-mentioned yaw collector ring stator structure with drainage structure, the cable (not shown in the figure) is connected to the conductive ring 1 through the drainage rack 41, so as to avoid the cable being directly connected to the conductive ring 1 and being too close to other conductive rings 1 to generate electromagnetic interference. And the drainage rack 41 is arranged in a stepped layered manner at one end away from the conductive ring 1, and the cables can be arranged in layers and levels after being connected to the drainage rack 41. The neatly arranged cables ensure stable circuit operation and are also convenient for later maintenance.
[0045] Embodiment 2
[0046] Please refer to Figure 3 The structure and working process of the second embodiment are mostly the same as those of the first embodiment, except that the adjacent drain racks 41 are grouped in pairs, and the wiring terminals 411 on different drain racks 41 in the same group are vertically staggered. The distances from the wiring terminals 411 on the drain racks 41 in the same group to the conductive rings 1 connected thereto are all the same.
[0047] By adopting the yaw collector ring stator structure with a drainage structure described in the second embodiment, more wiring terminals 411 can be evenly arranged in a limited space, thereby improving space utilization.
[0048] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0049] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A yaw collector ring stator structure with a drainage structure, characterized in that: It includes a conductive ring and a lead row, wherein: A plurality of the conductive rings are arranged in a vertical direction; The lead-out row includes a number of drain racks corresponding to the number of the conductive rings, each drain rack is connected to a conductive ring separately, and the horizontal orientations of the ends of the drain racks away from the conductive rings are consistent; From the distal end to the proximal end, the end of the guide frame away from the conductive ring gradually approaches the conductive ring.
2. The yaw collector ring stator structure with a drainage structure according to claim 1, characterized in that: A plurality of connection terminals are arranged at one end of the guide frame away from the conductive ring.
3. The yaw collector ring stator structure with a drainage structure according to claim 2, characterized in that: Adjacent drain racks are grouped in pairs, and the wiring terminals on different drain racks in the same group are staggered in the vertical direction.
4. The yaw collector ring stator structure with a drainage structure according to claim 3, characterized in that: The distances between the connection terminals on the drain racks in the same group and the conductive rings to which they are connected are all the same.
5. The yaw collector ring stator structure with a drainage structure according to claim 1, characterized in that: An insulating plate is arranged between adjacent conductive rings.
6. The yaw collector ring stator structure with a drainage structure according to claim 1, characterized in that: It also includes a column, and a plurality of conductive rings are sleeved on the column.
7. The yaw collector ring stator structure with a drainage structure according to claim 6, characterized in that: The column comprises a core rod and a plurality of sleeves sleeved on the core rod.
8. The yaw collector ring stator structure with drainage structure according to claim 7, characterized in that: An annular groove is horizontally provided on the sleeve.
9. The yaw collector ring stator structure with a drainage structure according to claim 1, characterized in that: The lead-out row also includes an insulating support plate, and the insulating support plate is connected to a plurality of the lead-out racks at the same time.
10. The yaw collector ring stator structure with a drainage structure according to claim 1, characterized in that: An extension portion is horizontally arranged on the conductive ring.