A contactless rotary electrically conductive slip ring device

Abstract

A contactless rotating conductive slip ring device includes an upper base and a lower base. The upper base includes an annular outer frame and a rotating block. The inner wall of the annular outer frame rotatably engages with the outer wall of the rotating block. Its bottom end is connected to the lower base via a support assembly. The rotating block is fixed to a rotatable mechanism. A first electrode plate and a second electrode plate coaxially sleeved outside the first electrode plate are disposed at the bottom of the upper base. The lower base is fixed to a fixing mechanism. A third electrode plate and a fourth electrode plate coaxially sleeved outside the third electrode plate are disposed at the top of the lower base. All four electrode plates are cylindrical structures. The bottoms of the first and second electrode plates are inserted between the tops of the third and fourth electrode plates. The tops of the first and second electrode plates are connected to both ends of an electrical signal receiving unit, and the bottoms of the third and fourth electrode plates are connected to both ends of an electrical signal output unit. This device achieves contactless electrical signal transmission through the capacitance effect between the four electrode plates, avoiding interference from the external electromagnetic environment, and is compatible with both AC and DC signals.

Description

Technical Field

[0001] This invention belongs to the field of electromagnetic and wireless technology, specifically relating to a contactless rotating conductive slip ring device, which is suitable for reducing space occupation, avoiding external electromagnetic interference, and is compatible with both AC and DC. Background Technology

[0002] A conductive slip ring, also known as a current collector ring, rotary joint, rotary electrical interface, slip ring, current collector ring, or return ring, is a device used to transmit electrical signals between two relatively rotating mechanisms. Conductive slip rings typically provide power and communication through traditional mechanical contact. This traditional mechanical contact usually involves a graphite carbon brush sliding against a copper ring surface to achieve conductivity. This method not only has a short service life, but also, under high-speed rotation, the frequent friction between the conductive brushes easily leads to wear on the contact parts, and electrical spark erosion of the contact surface is unavoidable. This significantly reduces the equipment's lifespan, causing the conductive slip ring to fail to transmit electrical signals properly, resulting in electrical contact connection failure.

[0003] Currently, contactless slip rings in existing technologies typically employ wireless signal transmission or coil induction similar to that used in electric motors. However, both methods have the following drawbacks:

[0004] 1. Wireless signal transmission is prone to coupling with the surrounding electromagnetic environment. If the wireless signal power is too high, it will interfere with surrounding equipment; if the wireless power is too low, it will be easily interfered with by the environment.

[0005] 2. Coil induction method: Due to the large size of the coil, the device occupies a lot of space. In addition, the resistive power loss of the coil itself cannot be avoided, resulting in a short lifespan. Furthermore, it is not compatible with both AC and DC. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned problems existing in the prior art and to provide a contactless rotating conductive slip ring device that can avoid external electromagnetic interference, occupy little space, and is compatible with both AC and DC.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A contactless rotating conductive slip ring device includes an upper base, a lower base, and a support assembly. The upper base includes an annular outer frame and a rotating block. The rotating block is located inside the annular outer frame, and its outer wall is rotatably engaged with the inner wall of the annular outer frame. The top of the rotating block is fixedly connected to a rotatable mechanism. The bottom of the rotating block is provided with a first electrode plate and a second electrode plate, both of which are cylindrical structures. The second electrode plate is coaxially sleeved outside the first electrode plate. The bottom of the annular outer frame is connected to the top periphery of the lower base through the support assembly. The middle of the top of the lower base is provided with a third electrode plate and a fourth electrode plate, both of which are cylindrical structures. The fourth electrode plate is coaxially sleeved outside the third electrode plate. The middle of the bottom of the lower base is fixedly connected to a fixing mechanism.

[0009] The tops of the first and second plates are respectively connected to the two ends of the electrical signal receiving unit mounted on the rotatable mechanism. The bottoms of the first and second plates are inserted between the tops of the third and fourth plates. The bottoms of the third and fourth plates are respectively connected to the two ends of the electrical signal output unit mounted on the fixed mechanism.

[0010] The support assembly includes multiple hydraulic cylinders evenly arranged around the circumference of the annular outer frame. The bottom end of each hydraulic cylinder is fixedly connected to the top end of the lower base, and the telescopic end of the hydraulic cylinder is fixedly connected to the bottom end of the annular outer frame.

[0011] The rotating block, lower base, first pole plate, and third pole plate are all coaxially arranged with the rotating shaft of the rotatable mechanism.

[0012] There are gaps between the outer wall of the third electrode plate and the inner wall of the first electrode plate, between the outer wall of the first electrode plate and the inner wall of the second electrode plate, and between the outer wall of the second electrode plate and the inner wall of the fourth electrode plate.

[0013] The tops of the first and second electrode plates are respectively fixed inside the first and second annular mounting grooves opened in the middle of the bottom of the rotating block, and the bottoms of the third and fourth electrode plates are respectively fixed inside the third and fourth annular mounting grooves opened in the middle of the top of the lower base.

[0014] The top of the first electrode plate is connected to one end of the electrical signal receiving unit via a first connecting screw, the top of the second electrode plate is connected to the other end of the electrical signal receiving unit via a second connecting screw, the bottom of the third electrode plate is connected to one end of the electrical signal output unit via a third connecting screw, and the bottom of the fourth electrode plate is connected to the other end of the electrical signal output unit via a fourth connecting screw. The first connecting screw and the second connecting screw are respectively disposed inside the first mounting hole and the second mounting hole opened on the rotating block, and the third connecting screw and the fourth connecting screw are respectively disposed inside the third mounting hole and the fourth mounting hole opened on the lower base.

[0015] The top of the first electrode plate, the top of the second electrode plate, the bottom of the third electrode plate, and the bottom of the fourth electrode plate are all provided with connection ports. The first, second, third, and fourth wiring screws have the same structure, each including an electrode plate connecting part, an external wiring part, and a wiring fastening nut. One end of the electrode plate connecting part is inserted into the connection port, and the other end of the electrode plate connecting part is connected to one end of the external wiring part through the wiring fastening nut.

[0016] The outer wall of the rotating block and the inner wall of the annular outer frame are rotated together by a rotating bearing.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The present invention provides a contactless rotating conductive slip ring device comprising an upper base, a lower base, and a support assembly. The upper base includes an annular outer frame and a rotating block. The rotating block is located inside the annular outer frame, and the outer wall of the rotating block is rotatably engaged with the inner wall of the annular outer frame. The top end of the rotating block is fixedly connected to a rotatable mechanism. The bottom end of the rotating block is provided with a first electrode plate and a second electrode plate, both of which are cylindrical structures. The second electrode plate is coaxially sleeved outside the first electrode plate. The bottom end of the annular outer frame is connected to the top periphery of the lower base through the support assembly. The middle of the top end of the lower base is provided with a third electrode plate and a fourth electrode plate, both of which are cylindrical structures. The fourth electrode plate is coaxially sleeved outside the third electrode plate. The middle of the bottom end of the lower base is fixedly connected to a fixing mechanism. The first electrode plate and the second electrode plate... The top of each electrode is connected to both ends of an electrical signal receiving unit mounted on a rotatable mechanism. The bottoms of the first and second electrodes are inserted between the tops of the third and fourth electrodes. The bottoms of the third and fourth electrodes are connected to both ends of an electrical signal output unit mounted on a fixed mechanism. The rotating block is fixed to the rotatable mechanism, and the lower base is fixed to the fixed mechanism. Non-contact electrical signal transmission is achieved through the capacitive effect between the first and second electrodes on the rotating block and the third and fourth electrodes on the lower base. This not only avoids external electromagnetic interference but also occupies little space. It is suitable for both AC and DC applications. Since the rotating block can rotate with the rotatable mechanism, it is suitable for applications with extremely high rotational speeds. Therefore, this invention not only avoids external electromagnetic interference but also occupies little space and is suitable for both AC and DC applications.

[0019] 2. In the non-contact rotary conductive slip ring device of the present invention, the support assembly includes multiple hydraulic cylinders evenly arranged around the circumference of an annular outer frame. The bottom end of the hydraulic cylinder is fixedly connected to the top end of the lower base, and the telescopic end of the hydraulic cylinder is fixedly connected to the bottom end of the annular outer frame. This device can adjust the distance between the rotating block and the lower base through the hydraulic cylinders, making it suitable for spaces of different heights. Therefore, the present invention can adjust the height of the device and is suitable for different spaces. Attached Figure Description

[0020] Figure 1 This is an assembly diagram of the present invention.

[0021] Figure 2 This is a longitudinal sectional view of the present invention.

[0022] Figure 3 This is a cross-sectional view of the first electrode plate, the second electrode plate, the third electrode plate, and the fourth electrode plate in this invention.

[0023] Figure 4 This is a longitudinal sectional view of the upper base in this invention.

[0024] Figure 5 This is a top view of the upper base in this invention.

[0025] Figure 6 This is a longitudinal sectional view of the lower base in this invention.

[0026] Figure 7 This is a top view of the lower base in this invention.

[0027] Figure 8 This is a longitudinal sectional view of the first electrode plate in this invention.

[0028] Figure 9 for Figure 1 A schematic diagram of the structure of the first connecting screw.

[0029] In the figure, the components are: upper base 1, annular outer frame 11, rotating block 12, first annular mounting groove 121, second annular mounting groove 122, first mounting hole 123, second mounting hole 124, rotary bearing 13, lower base 2, third annular mounting groove 21, fourth annular mounting groove 22, third mounting hole 23, fourth mounting hole 24, support assembly 3, oil cylinder 31, first electrode plate 4, first wiring screw 41, electrode plate connecting part 411, external wiring part 412, wiring fastening nut 413, connection port 42, second electrode plate 5, second wiring screw 51, third electrode plate 6, third wiring screw 61, fourth electrode plate 7, fourth wiring screw 71, rotatable mechanism 8, electrical signal receiving unit 81, fixing mechanism 9, and electrical signal output unit 91. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] See Figures 1 to 9 A contactless rotating conductive slip ring device is disclosed. The conductive slip ring device includes an upper base 1, a lower base 2, and a support assembly 3. The upper base 1 includes an annular outer frame 11 and a rotating block 12. The rotating block 12 is located inside the annular outer frame 11, and the outer wall of the rotating block 12 is rotatably engaged with the inner wall of the annular outer frame 11. The top end of the rotating block 12 is fixedly connected to a rotatable mechanism 8. The bottom end of the rotating block 12 is provided with a first electrode plate 4 and a second electrode plate 5. The first electrode plate 4 and the second electrode plate 5 are both cylindrical structures. The second electrode plate 5 is coaxially sleeved outside the first electrode plate 4. The bottom end of the annular outer frame 11 is connected to the top periphery of the lower base 2 through the support assembly 3. The middle of the top end of the lower base 2 is provided with a third electrode plate 6 and a fourth electrode plate 7. The third electrode plate 6 and the fourth electrode plate 7 are both cylindrical structures. The fourth electrode plate 7 is coaxially sleeved outside the third electrode plate 6. The middle of the bottom end of the lower base 2 is fixedly connected to a fixing mechanism 9.

[0032] The tops of the first electrode plate 4 and the second electrode plate 5 are respectively connected to the two ends of the electrical signal receiving unit 81 disposed on the rotatable mechanism 8. The bottoms of the first electrode plate 4 and the second electrode plate 5 are inserted between the top of the third electrode plate 6 and the top of the fourth electrode plate 7. The bottoms of the third electrode plate 6 and the fourth electrode plate 7 are respectively connected to the two ends of the electrical signal output unit 91 disposed on the fixed mechanism 9.

[0033] The support assembly 3 includes a plurality of hydraulic cylinders 31 evenly arranged around the annular outer frame 11. The bottom end of the hydraulic cylinder 31 is fixedly connected to the top end of the lower base 2, and the telescopic end of the hydraulic cylinder 31 is fixedly connected to the bottom end of the annular outer frame 11.

[0034] The rotating block 12, the lower base 2, the first pole plate 4, and the third pole plate 6 are all coaxially arranged with the rotating shaft of the rotatable mechanism 8.

[0035] There are gaps between the outer wall of the third electrode plate 6 and the inner wall of the first electrode plate 4, between the outer wall of the first electrode plate 4 and the inner wall of the second electrode plate 5, and between the outer wall of the second electrode plate 5 and the inner wall of the fourth electrode plate 7.

[0036] The tops of the first electrode plate 4 and the second electrode plate 5 are respectively fixed inside the first annular mounting groove 121 and the second annular mounting groove 122 opened at the bottom center of the rotating block 12, and the bottoms of the third electrode plate 6 and the fourth electrode plate 7 are respectively fixed inside the third annular mounting groove 21 and the fourth annular mounting groove 22 opened at the top center of the lower base 2.

[0037] The top of the first electrode plate 4 is connected to one end of the electrical signal receiving unit 81 via the first wiring screw 41. The top of the second electrode plate 5 is connected to the other end of the electrical signal receiving unit 81 via the second wiring screw 51. The bottom of the third electrode plate 6 is connected to one end of the electrical signal output unit 91 via the third wiring screw 61. The bottom of the fourth electrode plate 7 is connected to the other end of the electrical signal output unit 91 via the fourth wiring screw 71. The first wiring screw 41 and the second wiring screw 51 are respectively disposed inside the first mounting hole 123 and the second mounting hole 124 opened on the rotating block 12. The third wiring screw 61 and the fourth wiring screw 71 are respectively disposed inside the third mounting hole 23 and the fourth mounting hole 24 opened on the lower base 2.

[0038] The top of the first electrode plate 4, the top of the second electrode plate 5, the bottom of the third electrode plate 6, and the bottom of the fourth electrode plate 7 are all provided with connection ports 42. The first wiring screw 41, the second wiring screw 51, the third wiring screw 61, and the fourth wiring screw 71 have the same structure, all including an electrode plate connecting part 411, an external wiring part 412, and a wiring fastening nut 413. One end of the electrode plate connecting part 411 is inserted into the connection port 42, and the other end of the electrode plate connecting part 411 is connected to one end of the external wiring part 412 through the wiring fastening nut 413.

[0039] The outer wall of the rotating block 12 and the inner wall of the annular outer frame 11 are rotatably engaged by a rotating bearing 13.

[0040] The principle of this invention is explained as follows:

[0041] In this invention, a contactless rotating conductive slip ring device has an upper base 1 that is threaded onto a rotating mechanism, such as the blade rotor of a wind turbine. The lower base 2 is fixed to a stationary mechanism, such as the top of a wind turbine tower. The first and second electrode plates 4 and 5 on the rotating block 12 of the upper base 1, and the third and fourth electrode plates 6 and 7 on the lower base 2 are all cylindrical structures, glued to their respective prefabricated annular mounting grooves. The central axes of all four electrode plates coincide with the rotation axis of the rotatable mechanism 8. The rotating block 12 is mounted on the annular outer frame 11 via a rotating bearing 13, allowing the rotating block 12 to rotate around its central axis, carrying the first and second electrode plates 4 and 5. Plate capacitors can be formed between the first plate 4 and the second plate 5, and between the third plate 6 and the fourth plate 7. When the upper base 1 and the lower base 2 are close to each other, the four plates overlap. After the overlap, the third plate 6 and the fourth plate 7 on the lower base 2 wrap around the first plate 4 and the second plate 5 on the rotating block 12. A uniform electric field can exist between the two plate capacitors. After the power supply voltage U1 is input at the external connection part 412 of the third connecting screw 61 on the third plate 6 and the third connecting screw 71 on the fourth plate 7, the external connection part 412 of the first connecting screw 41 on the first plate 4 and the second connecting screw 51 on the second plate 5 will output voltage U2, thereby realizing non-contact electrical signal transmission.

[0042] Since U2 = U1 × d2 / d1, where d2 is the distance between the outer wall of the third plate 6 and the inner wall of the fourth plate 7, and d1 is the distance between the outer wall of the first plate 4 and the inner wall of the second plate 5, the magnitude of U2 is only related to the relative distance between the four plates. No matter how the rotation speed of the rotatable mechanism 8 changes, it will not affect the relative distance between the four plates, thus realizing the stable transmission of electrical signals.

[0043] Example 1:

[0044] See Figures 1 to 3A contactless rotating conductive slip ring device is disclosed. The conductive slip ring device includes an upper base 1, a lower base 2, and a support assembly 3. The upper base 1 includes an annular outer frame 11 and a rotating block 12. The rotating block 12 is located inside the annular outer frame 11. The outer wall of the rotating block 12 is rotatably engaged with the inner wall of the annular outer frame 11 through a rotating bearing 13. The top end of the rotating block 12 is fixedly connected to a rotatable mechanism 8. The bottom end of the rotating block 12 is provided with a first electrode plate 4 and a second electrode plate 5, both of which are cylindrical structures. The second electrode plate 5 is coaxially sleeved outside the first electrode plate 4. The bottom end of the annular outer frame 11 is connected to the top periphery of the lower base 2 through the support assembly 3. The middle of the top end of the lower base 2 is provided with a third electrode plate 6 and a fourth electrode plate 7, both of which are cylindrical structures. The fourth electrode plate 7 is coaxially sleeved outside the third electrode plate 6. The lower base 2, the first electrode plate 4, the third electrode plate 6, and the rotating block 12 are all coaxially arranged with the rotation axis of the rotatable mechanism 8. There are gaps between the outer wall of the third electrode plate 6 and the inner wall of the first electrode plate 4, between the outer wall of the first electrode plate 4 and the inner wall of the second electrode plate 5, and between the outer wall of the second electrode plate 5 and the inner wall of the fourth electrode plate 7. The bottom middle of the lower base 2 is fixedly connected to the fixing mechanism 9. The tops of the first electrode plate 4 and the second electrode plate 5 are respectively connected to the two ends of the electrical signal receiving unit 81 set on the rotatable mechanism 8. The bottoms of the first electrode plate 4 and the second electrode plate 5 are inserted between the top of the third electrode plate 6 and the top of the fourth electrode plate 7. The bottoms of the third electrode plate 6 and the fourth electrode plate 7 are respectively connected to the two ends of the electrical signal output unit 91 set on the fixing mechanism 9.

[0045] Example 2:

[0046] See Figure 2 The support component 3 includes four hydraulic cylinders 31 evenly arranged around the annular outer frame 11. The bottom end of the hydraulic cylinder 31 is fixedly connected to the top end of the lower base 2, and the telescopic end of the hydraulic cylinder 31 is fixedly connected to the bottom end of the annular outer frame 11.

[0047] Example 3:

[0048] See Figures 4 to 7The tops of the first electrode plate 4 and the second electrode plate 5 are respectively fixed inside the first annular mounting groove 121 and the second annular mounting groove 122 opened in the middle of the bottom end of the rotating block 12. The top of the first electrode plate 4 is connected to one end of the electrical signal receiving unit 81 through the first wiring screw 41, and the top of the second electrode plate 5 is connected to the other end of the electrical signal receiving unit 81 through the second wiring screw 51. The first wiring screw 41 and the second wiring screw 51 are respectively set in the first mounting hole 123 and the second mounting hole 124 opened on the rotating block 12. Inside, the bottoms of the third electrode plate 6 and the fourth electrode plate 7 are respectively fixed inside the third annular mounting groove 21 and the fourth annular mounting groove 22 opened at the top center of the lower base 2. The bottom of the third electrode plate 6 is connected to one end of the electrical signal output unit 91 through the third wiring screw 61, and the bottom of the fourth electrode plate 7 is connected to the other end of the electrical signal output unit 91 through the fourth wiring screw 71. The third wiring screw 61 and the fourth wiring screw 71 are respectively set inside the third mounting hole 23 and the fourth mounting hole 24 opened on the lower base 2.

[0049] Example 4:

[0050] See Figure 8 , Figure 9 The top of the first electrode plate 4, the top of the second electrode plate 5, the bottom of the third electrode plate 6, and the bottom of the fourth electrode plate 7 are all provided with connection ports 42. The first wiring screw 41, the second wiring screw 51, the third wiring screw 61, and the fourth wiring screw 71 have the same structure, all including an electrode plate connecting part 411, an external wiring part 412, and a wiring fastening nut 413. One end of the electrode plate connecting part 411 is inserted into the connection port 42, and the other end of the electrode plate connecting part 411 is connected to one end of the external wiring part 412 through the wiring fastening nut 413.

Claims

1. A contactless rotating conductive slip ring device, characterized in that: The conductive slip ring device includes an upper base (1), a lower base (2), and a support assembly (3). The upper base (1) includes an annular outer frame (11) and a rotating block (12). The rotating block (12) is located inside the annular outer frame (11). The outer wall of the rotating block (12) is rotatably engaged with the inner wall of the annular outer frame (11). The top end of the rotating block (12) is fixedly connected to a rotatable mechanism (8). The bottom end of the rotating block (12) is provided with a first electrode plate (4) and a second electrode plate (5). All of them are cylindrical structures. The second pole plate (5) is coaxially sleeved outside the first pole plate (4). The bottom end of the annular outer frame (11) is connected to the top periphery of the lower base (2) through the support component (3). The middle of the top end of the lower base (2) is provided with a third pole plate (6) and a fourth pole plate (7). The third pole plate (6) and the fourth pole plate (7) are both cylindrical structures. The fourth pole plate (7) is coaxially sleeved outside the third pole plate (6). The middle of the bottom end of the lower base (2) is fixedly connected to the fixing mechanism (9). The tops of the first electrode plate (4) and the second electrode plate (5) are respectively connected to the two ends of the electrical signal receiving unit (81) set on the rotatable mechanism (8). The bottoms of the first electrode plate (4) and the second electrode plate (5) are inserted between the top of the third electrode plate (6) and the top of the fourth electrode plate (7). The bottoms of the third electrode plate (6) and the fourth electrode plate (7) are connected to the two ends of the electrical signal output unit (91) set on the fixed mechanism (9). There are gaps between the outer wall of the third electrode plate (6) and the inner wall of the first electrode plate (4), between the outer wall of the first electrode plate (4) and the inner wall of the second electrode plate (5), and between the outer wall of the second electrode plate (5) and the inner wall of the fourth electrode plate (7).

2. The contactless rotating conductive slip ring device according to claim 1, characterized in that: The support component (3) includes multiple hydraulic cylinders (31) evenly arranged around the annular outer frame (11). The bottom end of the hydraulic cylinder (31) is fixedly connected to the top end of the lower base (2), and the telescopic end of the hydraulic cylinder (31) is fixedly connected to the bottom end of the annular outer frame (11).

3. A contactless rotating conductive slip ring device according to claim 1 or 2, characterized in that: The rotating block (12), lower base (2), first pole plate (4), and third pole plate (6) are all coaxially arranged with the rotation axis of the rotatable mechanism (8).

4. A contactless rotating conductive slip ring device according to claim 1 or 2, characterized in that: The tops of the first electrode plate (4) and the second electrode plate (5) are respectively fixed inside the first annular mounting groove (121) and the second annular mounting groove (122) opened at the bottom center of the rotating block (12), and the bottoms of the third electrode plate (6) and the fourth electrode plate (7) are respectively fixed inside the third annular mounting groove (21) and the fourth annular mounting groove (22) opened at the top center of the lower base (2).

5. A contactless rotating conductive slip ring device according to claim 1 or 2, characterized in that: The top of the first electrode plate (4) is connected to one end of the electrical signal receiving unit (81) through the first wiring screw (41), the top of the second electrode plate (5) is connected to the other end of the electrical signal receiving unit (81) through the second wiring screw (51), the bottom of the third electrode plate (6) is connected to one end of the electrical signal output unit (91) through the third wiring screw (61), and the bottom of the fourth electrode plate (7) is connected to the other end of the electrical signal output unit (91) through the fourth wiring screw (71). The first wiring screw (41) and the second wiring screw (51) are respectively disposed inside the first mounting hole (123) and the second mounting hole (124) opened on the rotating block (12), and the third wiring screw (61) and the fourth wiring screw (71) are respectively disposed inside the third mounting hole (23) and the fourth mounting hole (24) opened on the lower base (2).

6. The contactless rotating conductive slip ring device according to claim 5, characterized in that: The top of the first electrode plate (4), the top of the second electrode plate (5), the bottom of the third electrode plate (6), and the bottom of the fourth electrode plate (7) are all provided with connection ports (42). The first wiring screw (41), the second wiring screw (51), the third wiring screw (61), and the fourth wiring screw (71) have the same structure, all including an electrode plate connecting part (411), an external wiring part (412), and a wiring fastening nut (413). One end of the electrode plate connecting part (411) is inserted into the connection port (42), and the other end of the electrode plate connecting part (411) is connected to one end of the external wiring part (412) through the wiring fastening nut (413).

7. A contactless rotating conductive slip ring device according to claim 1 or 2, characterized in that: The outer wall of the rotating block (12) and the inner wall of the annular outer frame (11) are rotated together by a rotating bearing (13).

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