Collector ring assembly, power generation system and wind generating set

Abstract

The invention relates to a collecting ring assembly, a power generation system and a wind generating set, the collecting ring assembly comprises a protective cover, the protective cover comprises a hollow frame, a protective plate and a supporting part, the hollow frame comprises a fence frame and a junction box frame which are distributed in the first direction and connected, and the fence frame and the junction box frame are both provided with hollow holes; the supporting part is arranged at one end, in the second direction, of the fence frame and covers one of the hollowed-out holes, the rest hollowed-out holes of the fence frame and all the hollowed-out holes of the junction box frame all cover the protection plates, the protection plates are detachably connected with the hollowed-out frame, and the first direction intersects with the second direction; the collecting ring is arranged in the hollow frame and is connected with the supporting component; and the switching bar is arranged in the junction box frame, and the switching bar is electrically connected with the collecting ring. The power supply and signal transmission requirements can be met, and meanwhile installation, operation and maintenance are facilitated.

Description

Technical Field

[0001] This invention relates to the field of slip ring technology, and in particular to a slip ring assembly, a power generation system, and a wind turbine generator set. Background Technology

[0002] A slip ring, also called a conductive ring, current collector ring, or bus ring, is used in any electromechanical system that requires continuous rotation while transmitting power and signals from a fixed position to a rotating position. Slip rings improve system performance, simplify system structure, and prevent wires from twisting during rotation, making them widely used in various fields.

[0003] Taking wind power as an example, its power generation system requires slip ring assemblies to work with the generator to transmit electrical energy. However, the slip ring assemblies in related technologies are inconvenient to install and maintain due to design deficiencies. Summary of the Invention

[0004] This invention provides a slip ring assembly, a power generation system, and a wind turbine generator set. The slip ring assembly can meet the power and signal transmission requirements, and is also easy to install and maintain.

[0005] On one hand, according to an embodiment of the present invention, a slip ring assembly is provided, comprising: a protective cover, including a hollow frame, a protective plate, and a supporting component; the hollow frame includes a fence frame and a junction box frame distributed and connected along a first direction, both the fence frame and the junction box frame having hollow holes; the supporting component is disposed at one end of the fence frame along a second direction and covers one of the hollow holes; the remaining hollow holes of the fence frame and each hollow hole of the junction box frame are covered by the protective plate; the protective plate is detachably connected to the hollow frame; the first direction intersects the second direction; a slip ring, disposed within the fence frame and connected to the supporting component; and a transition strip, disposed within the junction box frame and electrically connected to the slip ring.

[0006] According to one aspect of the present invention, the support component includes a support plate, a plurality of support sleeves and a connector. The support plate covers one of the perforated holes and is detachably connected to the fence frame. Each support sleeve is disposed on the side of the support plate away from the fence frame along a second direction. Each connector is inserted into the support plate and one of the support sleeves and protrudes from the support sleeve in the second direction.

[0007] According to one aspect of the present invention, a support plate is provided with a through hole extending in a second direction, and a first sealing component is provided around the outer periphery of the through hole.

[0008] According to one aspect of the present invention, the slip ring assembly further includes a heat sink connected to the protective cover and communicating with the inner cavity of the fence frame.

[0009] According to one aspect of the present invention, the fence frame includes a plurality of frames distributed sequentially around the axis of the collector ring, each frame being connected to a protective plate, the included angle between the protective plates connected to two adjacent frames being greater than 90°, the radiator including a plurality of fans, and the protective plate of the hollow frame being provided with an exhaust port.

[0010] According to one aspect of the present invention, a mounting bracket is provided inside the junction box frame, a transition strip is connected to the mounting bracket, a slip ring includes a brush holder cable, a second sealing component is provided on one side of the fence frame corresponding to the junction box frame, and the brush holder cable extends into the junction box frame through the second sealing component and is electrically connected to the transition strip.

[0011] According to one aspect of the present invention, the second sealing assembly includes an insulating plate and a cable sealing ring, the insulating plate being connected to the fence frame and the cable sealing ring being disposed corresponding to the brush holder cable.

[0012] According to one aspect of the present invention, the protective plate on the junction box frame is further provided with a second plug hole and a cable fastener located at the second plug hole. The second plug hole is configured to allow the cabin cable connected to the transfer bus to pass through, and the cable fastener is configured to fix the cabin cable.

[0013] According to one aspect of the present invention, the slip ring includes a slip ring and a brush holder that are rotatably fitted and electrically connected to each other. The axis of the slip ring extends along a second direction. A rotating shaft bracket is provided on the side of the slip ring away from the support member in the second direction. One end of the rotating shaft bracket abuts against the slip ring and the other end is supported on a protective plate.

[0014] According to one aspect of the present invention, the slip ring assembly further includes an encoder disposed on the side of the fence frame facing away from the support member in a second direction, and the rotating shaft bracket portion extends out of the protective plate connected to the hollow frame and is connected to the encoder.

[0015] According to one aspect of the present invention, the slip ring assembly further includes a heater disposed within the fence frame and connected to the protective plate.

[0016] According to one aspect of the present invention, the slip ring assembly further includes a temperature sensor disposed within the enclosure frame and configured to detect the temperature rise of the slip ring.

[0017] According to one aspect of the present invention, at least one protective plate is provided with an equipotential block, which is configured to be connected to a grounding wire.

[0018] In another aspect, according to an embodiment of the present invention, a power generation system is provided, comprising: a generator, including a rotor and a stator that are rotatably coupled, the rotor including a shaft, a winding disposed around the shaft and a rotor cable, the rotor cable being electrically connected to the winding; and the aforementioned slip ring assembly, the shaft being inserted into a support member and a slip ring, the rotor cable extending into a hollow frame and being electrically connected to the slip ring.

[0019] In another aspect, according to embodiments of the present invention, a wind turbine generator set is provided, including the power generation system described above.

[0020] According to embodiments of the present invention, the slip ring assembly, power generation system, and wind turbine generator set include a protective cover, a slip ring, and a transition strip. The protective cover includes a perforated frame, a protective plate, and a supporting component. The perforated frame includes a fence frame and a junction box frame, both having perforations distributed along a first direction. The supporting component is disposed at one end of the fence frame along a second direction and covers one of the perforations. The slip ring can be disposed in the perforated frame and connected to the supporting component. The transition strip can be disposed within the junction box frame and electrically connected to the slip ring. The protective plate can cover the corresponding perforations and is detachably connected to the perforated frame. This configuration allows operators to simultaneously operate the slip ring and transition strip within both the fence frame and the junction box frame, facilitating installation and improving construction efficiency. Furthermore, the protective plate and its detachable connection to the perforated frame not only meet the safety protection requirements of the slip ring and transition strip but also allow for easy maintenance by simply removing and installing the corresponding protective plate, reducing maintenance difficulty. Attached Figure Description

[0021] The features, advantages and technical effects of exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of a wind turbine generator set according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a power generation system according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of a collector ring assembly according to an embodiment of the present invention;

[0025] Figure 4 This is a partial structural schematic diagram of a collector ring assembly according to an embodiment of the present invention;

[0026] Figure 5 This is an exploded view of a protective cover according to an embodiment of the present invention;

[0027] Figure 6 This is an overall schematic diagram of a protective cover according to an embodiment of the present invention;

[0028] Figure 7 This is a partial structural schematic diagram of a collector ring assembly according to an embodiment of this application;

[0029] Figure 8 yes Figure 2 A magnified view of a portion of point A in the middle.

[0030] Marker explanation:

[0031] 1. Power generation system;

[0032] 100. Slip ring assembly;

[0033] 10. Protective cover; 11. Hollowed-out frame; 111. Fence frame; 1111. Frame body; 112. Junction box frame; 113. Hollowed-out holes;

[0034] 12. Protective plate; 121. Cable sealing ring; 122. Second insertion hole; 123. Cable fastener; 124. Vent; 125. Insulating plate

[0035] 13. Supporting component; 131. Supporting plate; 1311. Through hole; 132. Supporting sleeve; 132a. First section; 132b. Second section; 133. Connecting component;

[0036] 14. First sealing assembly;

[0037] 20. Slip ring; 21. Slip ring; 22. Brush holder;

[0038] 30. Adapter panel;

[0039] 40. Radiator; 41. Fan;

[0040] 50. Mounting bracket;

[0041] 60. Second sealing assembly;

[0042] 70. Encoder; 80. Heater; 90. Equipotential block; 110. Shaft bracket; 110a. Support leg; 110b. Support rod; 110c. Limit cover; 120. Protective shell; 130. Temperature sensor;

[0043] 200. Generator; 201. Shaft; 202. Rotor cable;

[0044] 2. Tower; 3. Nacelle; 4. Impeller; 401. Hub; 402. Blade.

[0045] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0046] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. In the accompanying drawings and the following description, at least some well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the invention; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0047] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the collector ring assembly, power generation system, and wind turbine generator set of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0048] like Figure 1 As shown in the illustration, this application provides a wind turbine generator set, including a tower 2, a nacelle 3, a power generation system 1, and a rotor 4. The tower 2 is connected to the wind turbine foundation, the nacelle 3 is disposed at the top of the tower 2, and the power generation system 1 is disposed within the nacelle 3. In some examples, the power generation system 1 may be at least partially located outside the nacelle 3; conversely, in some examples, the power generation system 1 may be at least partially located inside the nacelle 3. The rotor 4 includes a hub 401 and a plurality of blades 402 connected to the hub 401. When wind force acts on the blades 402, it drives the entire rotor 4 to rotate, further driving the power generation system 1 to work, thereby converting wind energy into electrical energy.

[0049] like Figure 2 As shown, one embodiment of this application provides a unified power generation system 1, which can be used in the wind turbine generator sets provided in the above embodiments. The power generation system 1 includes a generator 200 and a slip ring assembly 100. The generator 200 includes a rotor and a stator that are rotatably coupled. The rotor includes a shaft 201, windings arranged around the shaft 201, and a rotor cable 202, which is electrically connected to the windings. The slip ring assembly 100 and the rotor cable 202 are electrically connected to each other.

[0050] The slip ring assembly 100 can be used in electromechanical systems that require continuous rotation while transmitting power and signals from a fixed position to a rotating position. The slip ring assembly 100 improves system performance, simplifies system structure, and prevents rotor cables from twisting during rotation, thus its applications are widespread. In the wind power field, the slip ring 20 is a core component of a doubly-fed generator. As the pivot point for rotating electrical conduction, its reliability depends not only on the slip ring 20 itself but also on factors such as synchronous operation and maintenance.

[0051] In the application of slip ring components in related technologies, neither manufacturers, motor manufacturers, nor complete machine manufacturers have developed them as a whole component, which is detrimental to the stable improvement of doubly-fed motor performance. Furthermore, the slip ring components in these technologies suffer from design deficiencies, making installation and maintenance inconvenient.

[0052] Based on this, one embodiment of this application provides a slip ring assembly 100, which can meet the power and signal transmission requirements, and is also easy to install and maintain. The slip ring assembly 100 can be manufactured and sold as an independent product, or it can be used in the power generation system 1 provided in the above embodiments and serve as a component of the power generation system 1.

[0053] like Figures 2 to 6 As shown, an embodiment of this application provides a slip ring assembly 100, including a protective cover 10, a slip ring 20, and an adapter bar 30. The protective cover 10 includes a perforated frame 11, a protective plate 12, and a support member 13. The perforated frame 11 includes a fence frame 111 and a junction box frame 112 distributed and connected along a first direction X. Both the fence frame 111 and the junction box frame 112 have perforated holes 113. The support member 13 is disposed at one end of the fence frame 111 along a second direction Y and covers one of the perforated holes 113. The remaining perforated holes 113 of the fence frame 111 and each perforated hole 113 of the junction box frame 112 are covered by the protective plate 12. The protective plate 12 is detachably connected to the perforated frame 11. The first direction X intersects the second direction Y. The slip ring 20 is disposed within the fence frame 111 and connected to the support member 13. The adapter bar 30 is disposed within the junction box frame 112 and is electrically connected to the slip ring 20.

[0054] The fence frame 111 and the junction box frame 112 can be connected in a fixed manner, such as by welding, to form a whole. Of course, they can also be connected in a detachable manner, such as by using bolts, rivets, or other fasteners.

[0055] The fence frame 111 and the junction box frame 112 can be formed by splicing multiple frames, and adjacent frames can be connected by welding or other methods.

[0056] The fact that the collector ring 20 is set inside the fence frame 111 can be understood as: the collector ring 20 can be set at least partially or entirely in the fence frame 111.

[0057] The fact that the adapter bar 30 is located inside the junction box frame 112 can be understood as: the adapter bar 30 can be located at least partially or entirely inside the junction box frame 112.

[0058] The angle between the first direction X and the second direction Y can be any value between 80° and 100°, and can be selected as 90°.

[0059] The arrangement of the support component 13 covering one of the perforated holes 113 can be understood as follows: the support component 13 at least partially matches the shape of the perforated hole 113 at one end of the perforated frame 11 in the second direction Y and closes the perforated hole 113. It is mainly used to cover the perforated hole 113. The support component 13 and the perforated frame 11 can be fixedly connected by welding or other methods; of course, they can also be connected by detachable fasteners such as bolts, screws, and rivets.

[0060] The remaining perforated holes 113 of the fence frame 111 can be understood as the remaining perforated holes 11 other than those covered by the supporting component 13.

[0061] The protective plate 12 and the hollow frame 11 can be connected by detachable fasteners such as bolts, screws, and rivets.

[0062] The slip ring 20 can be connected to the support component 13 at one end in the second direction Y, for example, by detachable connection using fasteners such as bolts, screws, and rivets. The adapter bar 30 is disposed inside the junction box frame 112 and can be directly or indirectly connected to the junction box frame 112, through which the junction box frame 112 provides support and installation for the adapter bar 30.

[0063] One embodiment of this application provides a slip ring assembly 100, which, when used in a power generation system 1, allows the rotor shaft 201 to be inserted into the support component 13 and the slip ring 20. The rotor cable 202 extends into the hollow frame 11 and is electrically connected to the slip ring 20. This fulfills the connection requirement between the slip ring 20 and the generator 200.

[0064] When the slip ring assembly 100 is manufactured, its perforated frame 11, including the fence frame 111 and the junction box frame 112, can be formed and connected as a whole, facilitating manufacturing and simultaneous hoisting. Furthermore, the arrangement of the fence frame 111 and the junction box frame 112, along with the design of the perforated holes 113, allows operators to simultaneously operate the slip ring 20 and the transition strip 30 within the fence frame 111 and the junction box frame 112, simplifying installation and improving construction efficiency. Additionally, the protective plate 12, with its detachable connection to the fence frame 111 and the junction box frame 112, not only meets the safety protection requirements of the slip ring 20 and the transition strip 30, but also simplifies maintenance by requiring only the removal and installation of the corresponding protective plate 12, reducing maintenance difficulty.

[0065] In some optional embodiments, the current collector ring assembly 100 provided in one embodiment of this application includes a support member 13 comprising a support plate 131, a plurality of support sleeves 132 and a connector 133. The support plate 131 covers one of the perforated holes 113 and is detachably connected to the fence frame 111. Each support sleeve 132 is disposed on the side of the support plate 131 away from the fence frame 111 along the second direction Y. Each connector 133 is inserted into the support plate 131 and one of the support sleeves 132 and protrudes from the support sleeve 132 in the second direction Y.

[0066] The shape of the support plate 131 can match the shape of the perforation 113 at one end of the fence frame 111 in the second direction Y. The support plate 131 can close the perforation 113.

[0067] The number of connectors 133 can be two, three or more, depending on the connection strength requirements between the slip ring assembly 100 and the generator 200.

[0068] The number of support sleeves 132 can be the same as the number of connectors 133, and they can be set one-to-one. Each support sleeve 132 can be set on the side of the support plate 131 facing away from the fence frame 111 along the second direction Y. The support sleeve 132 and the support plate 131 can be plugged into each other. For example, the support plate 131 can be provided with a hole that matches the shape of the support sleeve 132, and the support sleeve 132 extends into the hole along the second direction Y and is sleeved on the connector 133.

[0069] The portion of the connector 133 that protrudes from the support sleeve 132 in the second direction Y can be used to connect to the generator 200, and optionally can be connected to the end cover of the generator 200.

[0070] The connector 133 can be a bolt, screw or other connecting body. The connector 133 can extend along the second direction Y, with one end of the connector 133 protruding from the support sleeve 132 and the other end abutting against the side of the support plate 131 facing the fence frame 111.

[0071] Optionally, the support plate 131 may be provided with a socket, which communicates with the corresponding support sleeve 132, facilitating the insertion of the connector 133 in the first direction X.

[0072] One embodiment of this application provides a slip ring assembly 100, which facilitates the support plate 131 to provide support and mounting position for the slip ring 20. The correspondingly provided connector 133 facilitates the detachable connection of the slip ring assembly 100 to devices such as the generator 200, enabling easy connection or separation between the slip ring assembly 100 and the generator 200, and ensuring the easy removal and replacement of the bearings when the bearings of the generator 200 need to be replaced.

[0073] Furthermore, the support sleeve 132 allows the connector 133 to be connected to functional components such as the generator 200, and the support sleeve 132 can be clamped between the support plate 131 and the end cover of the generator 200. The support plate 131 and the generator 200 are spaced a certain distance apart along the second direction Y, forming an operable space for daily maintenance, such as inspection and refueling. The multiple support sleeves 132 also ensure that each connector 133 is inserted into the generator 200 to a consistent depth, guaranteeing the coaxiality of the support plate 131 and the generator 200's shaft 201, thereby ensuring the coaxiality of the slip ring 20 on the support plate 131 and the shaft 201.

[0074] like Figures 3 to 7 As shown, in some optional embodiments, one embodiment of this application provides a slip ring assembly 100, on which a through hole 1311 extending in the second direction Y is provided, and a first sealing assembly 14 is provided around the outer periphery of the through hole 1311.

[0075] One embodiment of this application provides a slip ring assembly 100, which, by providing a through hole 1311, facilitates the insertion of the generator 200's rotating shaft 201 and the connection between the rotating parts of the slip ring 20, allowing the rotating parts of the slip ring 20 to rotate with the generator 200's rotor. A correspondingly provided first seal can seal the gap between the support plate 131 and the rotating shaft 201, preventing grinding leakage caused by the relative rotation of the fixed and rotating parts in the slip ring assembly 100, thus improving the reliability of the slip ring assembly 100.

[0076] In some optional embodiments, the orthographic projection of the support plate 131 in the second direction Y can be a polygon, specifically a regular polygon. When it is a regular polygon, the center of the through hole 1311 can coincide with the center of the support plate 131, and the two can be coaxially arranged. An embodiment of this application provides a slip ring assembly 100, which, through the above arrangement, helps to ensure the coaxiality between the slip ring assembly 100 and the generator 200 after the slip ring assembly 100 is installed, thereby ensuring the smooth operation of the slip ring assembly 100.

[0077] In some optional embodiments, in one embodiment of this application, a slip ring assembly 100 has multiple support sleeves 132 circumferentially spaced and uniformly arranged around a through hole 1311, with equal vertical distances between the center of each support sleeve 132 and the center of the through hole 1311. Through the above arrangement, the slip ring assembly 100 provided in one embodiment of this application can further ensure the coaxiality between the slip ring assembly 100 and the generator 200 after the slip ring assembly 100 is installed on the generator 200.

[0078] In some optional embodiments, the support plate 131 is provided with a plurality of first holes, which are arranged through the support plate 131 along the second direction Y, and are spaced apart circumferentially in the through hole 1311. The slip ring 20 can be connected by connectors inserted into each of the first holes. The above arrangement helps to ensure the support and connection requirements of the slip ring 20, while ensuring the coaxiality requirement between the slip ring 20 and the generator 200.

[0079] In some optional embodiments, the slip ring assembly 100 provided in one embodiment of this application includes a support sleeve 132 comprising a first segment 132a and a second segment 132b along a first direction X, wherein the radial dimension of the first segment 132a is smaller than the radial dimension of the second segment 132b. This arrangement allows the support sleeve 132, when clamped between the generator 200 and the support plate 131, to be inserted into at least a portion of the generator 200 via the first segment 132a, thereby achieving installation positioning. This ensures the coaxiality of the slip ring 20 and the generator 200, while reducing installation difficulty and improving assembly efficiency. Optionally, both ends of the second segment 132b may be provided with the first segment 132a, facilitating insertion into the support plate 131.

[0080] In some alternative embodiments, the slip ring assembly 100 provided in one embodiment of this application further includes a heat sink 40, which is connected to the protective cover 10 and communicates with the inner cavity of the fence frame 111.

[0081] The number of heat sinks 40 can be one or more.

[0082] The radiator 40 can be cooled by liquid cooling, air cooling, or other methods.

[0083] The slip ring assembly 100 provided in one embodiment of this application, through the above-described configuration, can achieve heat exchange with devices such as slip ring 20 using heat sink 40, so that devices such as slip ring 20 can operate in a suitable temperature environment, thereby optimizing the performance of slip ring assembly 100.

[0084] In some alternative embodiments, the fence frame 111 includes a plurality of frames 1111 distributed sequentially around the axis of the collector ring 20, each frame 1111 is connected to a protective plate 12, and the included angle α between the protective plates 12 connected to two adjacent frames 1111 is greater than 90°. The radiator 40 includes a plurality of fans 41, and the protective plate 12 of the hollow frame 11 is provided with an exhaust port 124.

[0085] Optionally, the number of frames 1111 can be greater than four, such as five, six, etc.

[0086] Adjacent frames 1111 can be connected by welding or other methods.

[0087] The included angle between two adjacent frames 1111 can be 120° or 135°.

[0088] The number of fans 41 can be two, three, or more.

[0089] One embodiment of this application provides a collector ring assembly 100, which, by including multiple fans 41 in the heat sink 40 and correspondingly providing exhaust vents 124, enables the circulation of air within the fence frame 111 using the multiple fans 41 and exhaust vents 124, ensuring effective cooling. Furthermore, by ensuring that the included angle between the protective plates 12 connecting two adjacent frames 1111 is greater than 90°, the airflow generated by the fans 41 can flow through the corners where adjacent frames 1111 intersect, leaving no dead zones and resulting in good heat exchange.

[0090] In some alternative embodiments, the fan 41 may be located outside the fence frame 111 and connected to the support plate 131 on the fence frame 111.

[0091] In some alternative embodiments, one embodiment of this application provides a slip ring assembly 100, in which a mounting bracket 50 is provided inside a junction box frame 112, a transition strip 30 is connected to the mounting bracket 50, the slip ring 20 includes a brush holder cable, a second sealing component 60 is provided on one side of the fence frame 111 corresponding to the junction box frame 112, the brush holder cable extends into the junction box frame 112 through the second sealing component 60 and is electrically connected to the transition strip 30.

[0092] One embodiment of this application provides a slip ring assembly 100 that, by providing a mounting bracket 50 within the junction box frame 112, can support the installation of the adapter bar 30. Furthermore, the correspondingly provided second sealing component 60 facilitates the insertion of the brush holder cable, ensuring the electrical connection between the adapter bar 30 and the brush holder cable. It also effectively prevents wear debris generated within the slip ring 20 from entering the junction box frame 112 and causing short circuits, thus improving the reliability of the slip ring assembly 100.

[0093] In some alternative embodiments, the number of mounting brackets 50 can be two or more and spaced apart in the first direction X. By setting two or more mounting brackets 50, it is beneficial to ensure the support and installation of multiple adapter bars 30, while ensuring the stability of the connection.

[0094] In some alternative embodiments, the slip ring assembly 100 provided in one embodiment of this application is in the form of a stepped frame on the side facing away from the fence frame 111 in the first direction X. This arrangement ensures that multiple transition bars 30 can be staggered, facilitating wiring bends while avoiding crosstalk.

[0095] In some alternative embodiments, the second sealing assembly 60 includes an insulating plate 125 and a cable sealing ring 121, the insulating plate 125 being connected to the fence frame 111 and the cable sealing ring 121 being disposed corresponding to the brush holder cable.

[0096] In some alternative embodiments, the slip ring assembly 100 provided in one embodiment of this application has a protective plate 12 on the junction box frame 112, which is further provided with a second plug hole 122 and a cable fastener 123 located at the second plug hole 122. The second plug hole 122 is configured to pass through the cabin cable connected to the adapter 30, and the cable fastener 123 is configured to fix the cabin cable.

[0097] The number of second insertion holes 122 can be multiple, and the multiple second insertion holes 122 are arranged at intervals between each other. Optionally, all the second insertion holes 122 can be arranged on the same protective plate 12. Each second insertion hole 122 is provided with a cable fastener 123.

[0098] The slip ring assembly 100 provided in one embodiment of this application, through the above-described configuration, facilitates the connection between the transfer bus 30 and the nacelle cable, while ensuring the stability of the relative position of the nacelle cable and the transfer bus 30.

[0099] like Figures 3 to 8As shown, in some optional embodiments, one embodiment of this application provides a collector ring assembly 100, the collector ring 20 includes a slip ring 21 and a brush holder 22 that are rotatably engaged and electrically connected to each other, the axis of the collector ring 20 extends along the second direction Y, and the slip ring 21 is provided with a rotating shaft bracket 110 on the side of the second direction Y away from the support member 13, one end of the rotating shaft bracket 110 abuts against the collector ring 20 and the other end is supported on the protective plate 12.

[0100] The slip ring 21 and the brush holder 22 can be set coaxially.

[0101] The pivot bracket 110 and the slip ring 21 can be directly or indirectly connected, or they can be indirectly connected through other structures.

[0102] One embodiment of this application provides a slip ring assembly 100, which, by setting a rotating shaft bracket 110, can limit the slip ring 21 on the side away from the support member 13 in the second direction Y, thereby limiting the slip ring 20 in the second direction Y and ensuring the smooth operation of the slip ring assembly 100.

[0103] In some alternative embodiments, one embodiment of this application provides a slip ring assembly 100, which further includes an encoder 70. The encoder 70 is disposed on the side of the fence frame 111 opposite to the support member 13 in the second direction Y. The rotating shaft bracket 110 extends out of the protective plate 12 connected to the hollow frame 11 and is connected to the encoder 70.

[0104] The encoder 70 may include a rotating part and a fixed part, and the rotating part may be connected to the part of the rotating shaft bracket 110 that extends out of the hollow frame 11.

[0105] One embodiment of this application provides a slip ring assembly 100, which, through the above-described configuration, integrates the function of an encoder 70 on the slip ring assembly 100. The encoder 70 can rotate synchronously with the slip ring 20, thereby optimizing the function of the slip ring assembly 100.

[0106] like Figures 2 to 8 As shown, in some optional embodiments, one embodiment of this application provides a slip ring assembly 100, a shaft bracket 110 including a limiting cover 130, multiple support legs 110a, and a support rod 110b. One end of the multiple support legs 110a is dispersed and connected to the limiting cover 130, and the other end of the multiple support legs 110a converges to the support rod 110b and is fixedly connected to the support rod 110b. The support rod 110b is inserted along the second direction Y and extends out of the protective plate 12 connected to the hollow frame 11 and is connected to the encoder 70. The limiting cover 130 may be provided with a stop for abutting against the slip ring 20. The limiting cover 130 can be connected to the shaft 201 by bolts or other fasteners.

[0107] The slip ring assembly 100 provided in one embodiment of this application adopts the above-described form of the rotating shaft bracket 110, which has a simple structure, ensures the second-direction limiting requirement of the slip ring 20, and can also ensure the connection requirement of the encoder 70.

[0108] In some alternative embodiments, the slip ring assembly 100 provided in one embodiment of this application further includes a protective shell 120. The protective shell 120 is disposed on the support plate 131 connected to the hollow frame 11 and covers at least a portion of the encoder 70. By providing the protective shell 120, the encoder 70 can be protected, ensuring the safe operation of the encoder 70.

[0109] In some alternative embodiments, one embodiment of this application provides a slip ring assembly 100, which further includes a heater 80 disposed within a fence frame 111 and connected to a protective plate 12.

[0110] One embodiment of this application provides a slip ring assembly 100, which, by providing a heater 80, can regulate the temperature inside the fence frame 111, so that the slip ring 20 can be tooled at a suitable temperature, thus optimizing the working environment of the slip ring 20.

[0111] In some alternative embodiments, the slip ring assembly 100 provided in one embodiment of this application further includes a temperature sensor 130, which is disposed within the fence frame 111 and configured to detect the temperature rise of the slip ring 20.

[0112] Temperature acquisition device 130 includes, but is not limited to, temperature sensors, thermometers, etc.

[0113] One embodiment of this application provides a slip ring assembly 100, which facilitates the detection of the temperature of the slip ring 20 by setting a temperature acquisition device. When its temperature is too high or too low, the temperature inside the fence frame 111 can be adjusted by the heat sink 40 or the heater 80 to ensure the working environment adjustment requirements of the slip ring 20.

[0114] In some alternative embodiments, a collector ring assembly 100 provided in one embodiment of this application has at least one protective plate 12 provided with an equipotential block 90, the equipotential block 90 being configured to be connected to a grounding wire.

[0115] An equipotential block 90 can be provided on each protective plate 12, or a top potential block can be provided on some of the protective plates 12.

[0116] One embodiment of this application provides a slip ring assembly 100, which, by setting an equipotential block 90 for connecting the grounding wire, ensures the electrical safety protection requirements of the product.

[0117] In some optional embodiments, the power generation system 1 and wind turbine generator provided in one embodiment of this application, by including the slip ring assembly 100 provided in the above embodiments, facilitate simultaneous operation of the slip ring 20 and the transition busbar 30 by operators on the fence frame 111 and the junction box frame 112, which is beneficial for installation and improves construction efficiency. At the same time, the protective plate 12 not only meets the safety protection requirements of the slip ring 20 and the transition busbar 30, but also allows for easy maintenance of the slip ring 20 and the transition busbar 30 by simply removing and installing the corresponding protective plate 12, thus reducing maintenance difficulty.

[0118] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A slip ring assembly, characterized in that, include: The protective cover (10) includes a hollow frame (11), a protective plate (12), and a support component (13). The hollow frame (11) includes a fence frame (111) and a junction box frame (112) distributed and connected along a first direction (X). Both the fence frame (111) and the junction box frame (112) have hollow holes (113). The support component (13) is disposed at one end of the fence frame (111) along a second direction (Y) and covers one of the hollow holes (113). The remaining hollow holes (113) of the fence frame (111) and each hollow hole (113) of the junction box frame (112) cover the protective plate (12). The protective plate (12) is detachably connected to the hollow frame (11). The first direction (X) intersects with the second direction (Y). A collector ring (20) is disposed within the fence frame (111) and connected to the support component (13); A transition strip (30) is disposed within the junction box frame (112), and the transition strip (30) is electrically connected to the collector ring (20).

2. The slip ring assembly according to claim 1, characterized in that, The support component (13) includes a support plate (131), a plurality of support sleeves (132), and a connector (133). The support plate (131) covers one of the perforated holes (113) and is detachably connected to the fence frame (111). Each of the support sleeves (132) is located on the side of the support plate (131) facing away from the fence frame (111) along the second direction (Y). Each of the connectors (133) is inserted into the support plate (131) and one of the support sleeves (132) and protrudes from the support sleeve (132) in the second direction (Y).

3. The slip ring assembly according to claim 2, characterized in that, The support plate (131) is provided with a through hole (1311) extending along the second direction (Y), and a first sealing component (14) is provided around the outer periphery of the through hole (1311).

4. The slip ring assembly according to claim 1, characterized in that, The collector ring assembly (100) also includes a heat sink (40), which is connected to the protective cover (10) and communicates with the inner cavity of the fence frame (111).

5. The slip ring assembly according to claim 4, characterized in that, The fence frame (111) includes multiple frames (1111) distributed sequentially around the axis of the current collector ring (20). Each frame (1111) is connected to a protective plate (12). The included angle between the protective plates (12) connected to two adjacent frames (1111) is greater than 90°. The radiator (40) includes multiple fans (41). The protective plate (12) of the hollow frame (11) is provided with an exhaust port (124).

6. The slip ring assembly according to claim 1, characterized in that, The junction box frame (112) is provided with a mounting bracket (50), the adapter bar (30) is connected to the mounting bracket (50), the collector ring (20) includes a brush holder cable, the fence frame (111) is provided with a second sealing component (60) on one side corresponding to the junction box frame (112), the brush holder cable extends into the junction box frame (112) through the second sealing component (60) and is electrically connected to the adapter bar (30).

7. The slip ring assembly according to claim 1, characterized in that, The protective plate (12) on the junction box frame (112) is also provided with a second plug hole (122) and a cable fastener (123) located at the second plug hole (122). The second plug hole (122) is configured to pass through the cabin cable connected to the adapter (30), and the cable fastener (123) is configured to fix the cabin cable.

8. The slip ring assembly according to claim 1, characterized in that, The collector ring (20) includes a slip ring (21) that is rotatably engaged and electrically connected to each other, and a brush holder (22). The axis of the collector ring (20) extends along the second direction (Y). The slip ring (21) is provided with a rotating shaft bracket (110) on the side of the second direction (Y) away from the support member (13). One end of the rotating shaft bracket (110) abuts against the collector ring (20) and the other end is supported on the protective plate (12).

9. The slip ring assembly according to claim 8, characterized in that, The slip ring assembly (100) also includes an encoder (70), which is disposed on the side of the fence frame (111) facing away from the support member (13) in the second direction (Y). The rotating shaft bracket (110) extends out of the protective plate (12) connected to the hollow frame (11) and is connected to the encoder (70).

10. The slip ring assembly according to claim 1, characterized in that, The slip ring assembly (100) further includes a heater (80), which is disposed within the fence frame (111) and connected to the protective plate (12); And / or, the slip ring assembly (100) further includes a temperature sensor (130) disposed within the fence frame (111) and configured to detect the temperature rise of the slip ring (20).

11. The slip ring assembly according to claim 1, characterized in that, At least one of the protective plates (12) is provided with an equipotential block (90), which is configured to be connected to a grounding wire.

12. A power generation system (1), characterized in that, include: A generator (200) includes a rotor and a stator that are rotatably coupled. The rotor includes a shaft (201), windings arranged around the shaft (201), and a rotor cable (202) electrically connected to the windings. The slip ring assembly (100) as described in any one of claims 1 to 11, wherein the rotating shaft (201) is inserted into the support member (13) and the slip ring (20), and the rotor cable (202) extends into the hollow frame (11) and is electrically connected to the slip ring (20).

13. A wind turbine generator set, characterized in that, Includes the power generation system (1) as described in claim 12.

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