Conductive ring, current collection device and current collection equipment

Abstract

The utility model discloses a conducting ring, current collection device and current collection equipment, the conducting ring comprises a stator assembly, a rotor assembly, an inner ring and an outer ring, the stator assembly is provided with a first contact surface, the rotor assembly is provided with a second contact surface, and the first contact surface and the second contact surface are in sliding connection; the inner ring, the outer ring and the stator assembly define an accommodating cavity, and the first contact surface and the second contact surface are arranged in the accommodating cavity. According to the conducting ring, the conducting ring can work stably and is convenient to clean.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a conductive ring, a current collecting device and a current collecting equipment. Background Art

[0002] With the development of clean energy, the demand for wind power generation is increasing. During wind turbine operation, wind direction fluctuates randomly throughout the 360 ​​degrees, necessitating yaw to maximize wind power generation efficiency. This necessitates the dynamic transmission of current between the rotor and stator through conductive slip rings. However, friction between the stator and rotor generates debris, which can become airborne and adhere to insulation components, compromising insulation and posing safety risks. Utility Model Content

[0003] The main purpose of the utility model is to provide a conductive ring, a current collecting device and a current collecting equipment, aiming to solve the technical problem that the conductive ring currently generates debris that affects insulation and brings potential safety hazards.

[0004] To achieve the above-mentioned purpose, the present invention proposes a conductive ring, comprising a stator assembly, a rotor assembly, an inner ring and an outer ring.

[0005] The stator assembly is provided with a first contact surface, the rotor assembly is provided with a second contact surface, and the first contact surface and the second contact surface are slidably connected;

[0006] The inner ring, the outer ring and the stator assembly together form an accommodating cavity, and the first contact surface and the second contact surface are arranged in the accommodating cavity.

[0007] Optionally, in an embodiment of the present invention, the stator assembly includes a contact ring, and the contact ring has a first contact surface.

[0008] Optionally, in one embodiment of the present invention, the rotor assembly includes a fixing ring, a fixing member and a contact member, the fixing ring and the contact ring are arranged opposite to each other, a fixing member is provided on the side of the fixing ring facing the contact ring, a contact member is fixed on the fixing member, and a second contact surface is provided on the side of the contact member facing the contact ring.

[0009] Optionally, in an embodiment of the present invention, the inner ring is arranged on a side of the contact ring close to the axis, and the outer ring is arranged on a side of the contact ring away from the axis, and the inner ring, the outer ring and the contact ring together form an accommodating cavity.

[0010] Optionally, in an embodiment of the present invention, one end of the fixing ring away from the contact ring is flush with the opening of the accommodating cavity.

[0011] Optionally, in an embodiment of the present invention, a groove is further provided on the side of the inner ring facing the outer ring, the groove extends in a direction parallel to the axis, and a chip collecting device is further provided on the side of the groove away from the fixing ring.

[0012] Optionally, in an embodiment of the present invention, a groove is further provided on the side of the outer ring facing the inner ring, the groove extends in a direction parallel to the axis, and a chip collecting device is further provided on the side of the groove away from the fixed ring.

[0013] Optionally, in an embodiment of the present invention, a plurality of first conductive members are further provided at one end of the contact ring away from the rotor assembly, and / or a plurality of first pillars are further provided at one end of the contact ring away from the rotor assembly.

[0014] Optionally, in an embodiment of the present invention, a plurality of second conductive members are further provided at one end of the fixing ring away from the stator assembly, and / or a plurality of second pillars are further provided at one end of the fixing ring away from the stator assembly.

[0015] The utility model also provides a current collecting device, comprising the above-mentioned conductive ring, wherein a plurality of the conductive rings are coaxially arranged at intervals.

[0016] The utility model also provides a current collecting device, comprising a fan and the above-mentioned current collecting device.

[0017] The conductive ring of the utility model is provided with an inner ring and an outer ring, so that the inner ring, the outer ring and the stator assembly are surrounded to form an accommodating cavity, and the first contact surface and the second contact surface are arranged in the accommodating cavity, so that the debris generated by the sliding friction between the first contact surface and the second contact surface will not float into the air, thereby extending the service life and facilitating cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is a structural diagram of an embodiment of a conductive ring of the present utility model;

[0020] Figure 2 This is a partial structural diagram of an embodiment of a conductive ring of the present utility model;

[0021] Figure 3 This is a schematic diagram of the installation of an embodiment of the inner ring, groove, and chip collection device of the utility model;

[0022] Figure 4 This is a structural diagram of an embodiment of the current collecting device of the present utility model;

[0023] Figure 5 This is a structural diagram of an embodiment of the current collection device of the present utility model.

[0024] Description of Figure Numbers:

[0025] 100. Conductive ring; 200. Current collecting device; 300. Fan; 400. Current collecting device; 10. Stator assembly; 11. Contact ring; 111. First contact surface; 12. First conductive member; 13. First pillar; 14. Adapter; 20. Rotor assembly; 21. Fixed ring; 22. Fixed member; 23. Contact member; 231. Second contact surface; 24. Second conductive member; 25. Second pillar; 30. Inner ring; 31. Groove; 40. Outer ring; 50. Chip collecting device; 60. Lubricating member; L. Axis.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first", "second", etc. in this utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0030] With the development of clean energy, the demand for wind power generation is increasing. During wind turbine operation, wind direction fluctuates randomly throughout the 360 ​​degrees, necessitating yaw to maximize wind power generation efficiency. This necessitates the dynamic transmission of current between the rotor and stator through conductive slip rings. However, friction between the stator and rotor generates debris, which can become airborne and adhere to insulation components, compromising insulation and posing safety risks.

[0031] In view of this, the present invention proposes a conductive ring 100, which is provided with an inner ring 30 and an outer ring 40 so that the inner ring 30, the outer ring 40 and the stator assembly 10 are surrounded to form a receiving cavity, and the first contact surface 111 and the second contact surface 231 are provided in the receiving cavity, so that the debris generated by the sliding friction of the first contact surface 111 and the second contact surface 231 will not float into the air, thereby extending the service life and facilitating cleaning.

[0032] In order to better understand the above technical solution, the above technical solution is described in detail below with reference to the accompanying drawings.

[0033] Please refer to Figure 1-2 As shown, the present invention proposes a conductive ring 100, including a stator assembly 10, a rotor assembly 20, an inner ring 30 and an outer ring 40. The stator assembly 10 is provided with a first contact surface 111, and the rotor assembly 20 is provided with a second contact surface 231. The first contact surface 111 and the second contact surface 231 are slidingly connected; the inner ring 30, the outer ring 40 and the stator assembly 10 are surrounded to form an accommodating cavity, and the first contact surface 111 and the second contact surface 231 are provided in the accommodating cavity.

[0034] As can be understood, the conductive ring 100 includes a stator assembly 10 and a rotor assembly 20, wherein the stator assembly 10 can be connected to a fixed structure (not shown), and the rotor assembly 20 can be connected to a rotating structure (not shown) and rotate therewith. The first contact surface 111 on the stator assembly 10 and the second contact surface 231 on the rotor assembly 20 are in sliding connection, thereby transmitting electrical energy from the stator assembly 10 to the rotor assembly 20, or from the rotor assembly 20 to the stator assembly 10. When the first contact surface 111 and the second contact surface 231 are in sliding connection, a large amount of debris is generated due to friction between the two. By providing the inner ring 30 and the outer ring 40, the inner ring 30 and the outer ring 40 and the stator assembly 10 form a receiving cavity, and the first contact surface 111 and the second contact surface 231 are disposed in the receiving cavity. In this manner, the debris generated by the friction between the first contact surface 111 and the second contact surface 231 is confined within the receiving cavity and does not float in the air or adhere to the surface of the insulating member, affecting insulation and interfering with normal operation.

[0035] In one embodiment, the stator assembly 10 includes a contact ring 11 . The contact ring 11 has a first contact surface 111 . A first conductive member 12 is provided at one end of the contact ring 11 away from the first contact surface 111 .

[0036] It is understood that the contact ring 11 is made of a conductive material, which can be a metal material. Preferably, the contact ring 11 is a brass ring to improve the conductivity of the first contact surface 111.

[0037] In one embodiment, the rotor assembly 20 includes a fixing ring 21, a fixing member 22 and a contact member 23. The fixing ring 21 and the contact ring 11 are arranged opposite to each other. The fixing member 22 is provided on the side of the fixing ring 21 facing the contact ring 11. The contact member 23 is fixed on the fixing member 22. The contact member 23 is provided with a second contact surface 231 on the side facing the contact ring 11.

[0038] It is understood that in order to ensure good electrical conductivity between the first contact surface 111 and the second contact surface 231 during the rotation of the rotor assembly 20, a contact member 23 can be provided on the side of the fixing ring 21 facing the contact ring 11. The contact member 23 and the fixing ring 21 are fixed by the fixing member 22. The second contact surface 231 on the contact member 23 can always be in contact with the first contact surface 111 and maintain good electrical conductivity, thereby achieving stable power transmission between the first contact surface 111 and the second contact surface 231. It is understood that the fixing ring 21, the fixing member 22, and the contact member 23 can all be made of conductive materials such as metal. Preferably, the contact member 23 is a spring brush.

[0039] In one embodiment, the inner ring 30 is disposed on the side of the contact ring 11 close to the axis, and the outer ring 40 is disposed on the side of the contact ring 11 away from the axis. The inner ring 30, the outer ring 40 and the contact ring 11 together form an accommodating cavity.

[0040] It will be appreciated that the retaining ring 21 and the contact ring 11 can be spaced apart and arranged parallel to the axis L. When the first contact surface 111 is planar, it is perpendicular to the axis. The inner ring 30 is located on the side of the contact ring 11 closer to the axis, and the outer ring 40 is located on the side of the contact ring 11 farther from the axis, so that the distance between the inner ring 30 and the axis is smaller than the distance between the outer ring 40 and the axis. The inner ring 30, outer ring 40, and contact ring 11 together form a receiving cavity, which is open toward the retaining ring 21, forming a cavity opening. The first contact surface 111 forms the bottom wall of the receiving cavity. This arrangement ensures that the contact point between the first contact surface 111 and the second contact surface 231 is located at the bottom of the receiving cavity, effectively preventing debris from flying out of the cavity. The inner ring 30 and outer ring 40 can be made of metal, although insulating materials are also acceptable. The inner ring 30 and outer ring 40 can be attached to the contact ring 11 by gluing. Of course, the contact ring 11 can be fixedly connected by providing a slot and matching engaging portions on the inner ring 30 and outer ring 40. In order to improve the tightness of the connection between the inner ring 30, outer ring 40 and contact ring 11, the inner ring 30 and outer ring 40 can also be connected to the contact ring 11 by welding.

[0041] In one embodiment, one end of the fixing ring 21 away from the contact ring 11 is flush with the opening of the accommodating cavity.

[0042] It is understood that the retaining ring 21 can be positioned at the opening of the accommodating cavity, with the end of the retaining ring 21 away from the contact ring 11 flush with the cavity opening. In this case, the end of the inner ring 30 away from the contact ring 11 is located on the side of the retaining ring 21 closer to the axis, and the end of the outer ring 40 away from the contact ring 11 is located on the side of the retaining ring 21 away from the axis. A certain gap exists between the inner ring 30 and the retaining ring 21, and between the outer ring 40 and the retaining ring 21, so that the inner ring 30 and the outer ring 40 do not interfere with the rotation of the retaining ring 21. This arrangement ensures that while the rotor assembly 20 rotates, debris generated by friction between the first contact surface 111 and the second contact surface 231 will not fly out of the cavity opening.

[0043] In one embodiment, if Figure 3 As shown, a groove 31 is further provided on the side of the inner ring 30 facing the outer ring 40 . The groove 31 extends in a direction parallel to the axis L. A chip collecting device 50 is further provided on the side of the groove 31 away from the fixing ring 21 .

[0044] As will be appreciated, due to the friction between the first contact surface 111 and the second contact surface 231, debris accumulates on the first contact surface 111. By providing a groove 31 on the side of the inner ring 30 facing the outer ring 40 and a chip collection device 50 on the side of the groove 31 facing away from the retaining ring 21, debris can enter the groove 31 under the push of the contact member 23 and flow into the chip collection device 50 along the groove 31. The chip collection device 50 is located on the side of the contact ring 11 facing away from the retaining ring 21. The presence of the groove 31 creates a gap between the contact ring 11 and the inner ring 30 at the groove 31. This gap, defined by the depth of the groove 31, allows debris to flow into the chip collection device 50 through this gap, thereby achieving debris cleaning and collection. In another embodiment, a groove 31 can be provided on the side of the outer ring 40 facing the inner ring 30, extending parallel to the axis, with a chip collection device 50 also provided on the side of the groove 31 facing away from the retaining ring 21. Of course, grooves 31 and chip collection devices 50 can also be provided on both the inner and outer rings 40. The chip collection device 50 can be connected to an external pipe (not shown) to transport debris out of the device. Of course, the chip collection device 50 can also be designed to be detachable, thereby achieving regular cleaning of the chip collection device 50.

[0045] In one embodiment, a plurality of first conductive members 12 are further provided at one end of the contact ring 11 away from the rotor assembly 20 , and / or a plurality of first pillars 13 are further provided at one end of the contact ring 11 away from the rotor assembly 20 .

[0046] It can be understood that the first conductive member 12 can be a conductive bar, and one end of the conductive bar can be fixedly connected to the fixing ring 21 by welding. The end of the contact ring 11 away from the rotor assembly 20 is also provided with a plurality of first pillars 13 fixedly connected, and the first pillars 13 can be connected to an external device (not shown). Preferably, the stator assembly 10 also includes an adapter 14, which is fixedly connected to the end of the contact ring 11 away from the rotor assembly 20. The first pillars 13 and the adapter 14 are detachably connected, thereby realizing a detachable connection between the first pillars 13 and the contact ring 11. Preferably, an internal thread is provided in the adapter 14, and an external thread adapted to the internal thread is provided on the first pillar 13. By screwing the external thread of the first pillar 13 into the internal thread of the adapter 14, the first pillar 13 and the adapter 14 are screwed together, thereby realizing a detachable connection between the first branch and the adapter 14.

[0047] In one embodiment, a plurality of second conductive members 24 are further provided at one end of the fixing ring 21 away from the stator assembly 10 , and / or a plurality of second pillars 25 are further provided at one end of the fixing ring 21 away from the stator assembly 10 .

[0048] It is understood that the second conductive member 24 can be a conductive bar, one end of which can be fixedly connected to the fixing ring 21 by welding. The fixing ring 21 is also fixedly connected to the end away from the stator assembly 10 with a plurality of second pillars 25, which can be connected to external equipment (not shown).

[0049] Preferably, a lubricating element 60 is also provided within the accommodating cavity. By providing lubrication through the lubricating element 60, the sliding friction between the first contact surface 111 and the second contact surface 231 is reduced, thereby minimizing the generation of debris. The lubricating element 60 can be fixedly connected to the inner ring 30 or the outer ring 40. Alternatively, the lubricating element 60 can be fixedly connected to the contact ring 11 or the fixed ring 21. The installation method is not limited herein. Preferably, the lubricating element 60 is made of graphite.

[0050] like Figure 4 As shown, the present invention further provides a current collector 200 comprising a plurality of the aforementioned conductive rings 100, which are coaxially spaced apart. The specific structure of the conductive rings 100 of the present application is similar to that of the aforementioned embodiments. Since the present conductive ring 100 utilizes all the technical solutions of all the aforementioned embodiments, it at least possesses all the beneficial effects brought about by the technical solutions of the aforementioned embodiments, which will not be further elaborated here.

[0051] like Figure 5 As shown, the present invention further provides a current collector device 400, comprising a fan 300 and the aforementioned current collector device 200. The specific structure of the current collector device 200 of the present application is similar to that of the aforementioned embodiments. Since the present current collector device 200 utilizes all the technical solutions of all the aforementioned embodiments, it at least has all the beneficial effects brought about by the technical solutions of the aforementioned embodiments, and therefore will not be further elaborated here.

[0052] As will be appreciated, when the current collector 200 is in operation, friction between the first contact surface 111 and the second contact surface 231 generates a significant amount of heat. The addition of a fan 300 allows for physical cooling of the current collector 200. Although the present invention incorporates a fan 300, the presence of the inner ring 30 and the outer ring 40 prevents the fan 300 from blowing directly onto the first and second contact surfaces 111, 231, preventing friction-generated debris from being blown away and potentially creating a safety hazard.

[0053] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A conductive ring (100), characterized in that: It comprises a stator assembly (10), a rotor assembly (20), an inner ring (30) and an outer ring (40), The stator assembly (10) is provided with a first contact surface (111), and the rotor assembly (20) is provided with a second contact surface (231), wherein the first contact surface (111) and the second contact surface (231) are slidably connected; The inner ring (30), the outer ring (40) and the stator assembly (10) together form an accommodating cavity, and the first contact surface (111) and the second contact surface (231) are arranged in the accommodating cavity.

2. The conductive ring (100) according to claim 1, characterized in that The stator assembly (10) comprises a contact ring (11) having a first contact surface (111).

3. The conductive ring (100) according to claim 2, characterized in that The rotor assembly (20) comprises a fixing ring (21), a fixing member (22) and a contact member (23); the fixing ring (21) and the contact ring (11) are arranged opposite to each other; the fixing member (22) is provided on a side of the fixing ring (21) facing the contact ring (11); the contact member (23) is fixedly provided on the fixing member (22); and the contact member (23) is provided with a second contact surface (231) on a side facing the contact ring (11).

4. The conductive ring (100) according to claim 3, characterized in that The inner ring (30) is arranged on a side of the contact ring (11) close to the axis, and the outer ring (40) is arranged on a side of the contact ring (11) away from the axis. The inner ring (30), the outer ring (40) and the contact ring (11) together form an accommodating cavity.

5. The conductive ring (100) according to claim 4, characterized in that One end of the fixing ring (21) away from the contact ring (11) is flush with the opening of the accommodating cavity.

6. The conductive ring (100) according to claim 5, characterized in that A groove (31) is further provided on the side of the inner ring (30) facing the outer ring (40), and the groove (31) extends in a direction parallel to the axis. A chip collecting device (50) is further provided on the side of the groove (31) away from the fixing ring (21).

7. The conductive ring (100) according to claim 5, characterized in that A groove (31) is further provided on the side of the outer ring (40) facing the inner ring (30), and the groove (31) extends in a direction parallel to the axis. A chip collecting device (50) is further provided on the side of the groove (31) away from the fixing ring (21).

8. A conductive ring (100) according to claim 3, characterized in that: The end of the contact ring (11) away from the rotor assembly (20) is further provided with a plurality of first conductive members (12), and / or the end of the contact ring (11) away from the rotor assembly (20) is further provided with a plurality of first pillars (13).

9. A conductive ring (100) according to claim 8, characterized in that: The end of the fixing ring (21) away from the stator assembly (10) is further provided with a plurality of second conductive members (24), and / or the end of the fixing ring (21) away from the stator assembly (10) is further provided with a plurality of second pillars (25).

10. A current collecting device (200), characterized in that: The invention comprises a plurality of conductive rings (100) according to any one of claims 1 to 9, wherein the plurality of conductive rings (100) are coaxially spaced apart.

11. A current collecting device (400), characterized in that: The invention comprises a fan (300) and the current collecting device (200) according to claim 10.

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