Contact type slip ring assembly

Abstract

The invention belongs to the technical field of electrical connection, and particularly relates to a contact type slip ring assembly, which comprises an annular insulating base formed by splicing a head end arc-shaped unit, a tail end arc-shaped unit and an odd number of middle arc-shaped units, and the slide way is annular, and the slide way is formed by bending a continuous metal conductor. The number of the arc-shaped units is an odd number, two parallel joints between the arc-shaped units can be avoided, and due to the fact that the arc-shaped units are connected through the dovetail grooves and the dovetail blocks, after the arc-shaped units at the head end and the tail end are connected through the fasteners, interlocking can be formed between the other arc-shaped units, and the arc-shaped units at the tail end and the head end are connected through the fasteners. The assembly process of the insulating base is simplified, and the assembly efficiency is improved; in addition, the slide way is formed by bending a continuous metal conductor, so that the manufacturing cost is reduced, the continuity and planeness of the slide way are ensured, and the electrical connection performance of the slip ring is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical connection, and in particular relates to a contact type slip ring assembly. Background Art

[0002] The main unit of a CT (computed tomography) device is mounted on a rotating body. To power and transmit signals to the main unit's electrical equipment, a slip ring device is required. However, CT devices are generally large in diameter, and traditional one-piece slip rings face high manufacturing and transportation costs when faced with such large diameter requirements. To address this issue, existing technologies design CT slip rings into multiple units, which are then assembled into a ring-shaped whole. While this approach reduces manufacturing and transportation costs, the on-site assembly process is cumbersome, requiring independent fasteners between each unit. Furthermore, since the slip rings are split into multiple sections, flatness after assembly is difficult to ensure, affecting the device's electrical performance. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a contact slip ring assembly which is low in cost, easy to install and has reliable electrical performance.

[0004] To achieve the above-mentioned and other related objectives, the present invention provides a contact slip ring assembly, comprising: An insulating base, wherein the insulating base is annular and is composed of a head end arc unit, a tail end arc unit and an odd number of intermediate arc units, wherein the first end of the head end arc unit is butted against the second end of the tail end arc unit, and each of the intermediate arc units is sequentially connected between the second end of the head end arc unit and the first end of the tail end arc unit, the first end of each of the intermediate arc units and the first end of the tail end arc unit is provided with a dovetail groove arranged along the radial direction of the insulating base, the second end of each of the intermediate arc units and the second end of the head end arc unit is provided with a dovetail block matching the dovetail groove, the first end of the head end arc unit is provided with a rectangular groove arranged along the radial direction of the insulating base, the second end of the tail end arc unit is provided with a protrusion matching the shape of the rectangular groove, and the rectangular groove and the protrusion are connected by fasteners; The slide is annular and concentric with the insulating base. A plurality of slides are arranged on one end face of the insulating base. A plurality of slides are arranged at intervals along the radial direction of the insulating base. The slide is formed by bending a continuous metal conductor.

[0005] In an optional embodiment of the present invention, an annular groove for accommodating the slide is provided on the end face of the insulating base, and an annular ridge is provided on the groove wall on one side close to the center of the insulating base. The cross-section of the annular ridge is trapezoidal or triangular, and the protrusion height of the annular ridge is L. A groove matching the annular ridge is provided on the inner annular surface of the slide, the width of the annular groove is greater than the width of the slide, and the difference between the width of the annular groove and the width of the slide is greater than L; the first end of the metal conductor is fixedly connected to the insulating base, and a tensioning member is provided between the second end of the metal conductor and the insulating base, and the tensioning member is assembled to be able to tighten the metal conductor so that the inner annular surface of the slide is tightly fitted with the groove wall on one side of the annular groove close to the center of the insulating base.

[0006] In an optional embodiment of the present invention, the tensioning member includes a pin shaft, which is rotatably connected to the insulating base, and an eccentric shaft is provided at the end of the pin shaft, which protrudes into the annular groove, and the second end of the metal conductor is provided with a waist-shaped groove that cooperates with the eccentric shaft, and the length direction of the waist-shaped groove is arranged along the width direction of the metal conductor, and a locking mechanism is provided between the pin shaft and the insulating base, and the locking mechanism is assembled so that when the pin shaft is rotated to a first angle, the locking mechanism can keep the pin shaft at the first angle, and when the pin shaft is at the first angle, the eccentric shaft is located at the position closest to the first end of the metal conductor; the end of the pin shaft away from the eccentric shaft is provided with a mating portion that cooperates with a screwing tool.

[0007] In an optional embodiment of the present invention, the locking mechanism includes a locking plate, which is synchronously rotated with the pin shaft and slidably connected to the pin shaft along the axial direction of the pin shaft. A first protrusion is provided on the locking plate, and a pressure plate is provided on the insulating base. The pressure plate is fixedly connected to the insulating base, and a first groove is provided on the pressure plate to cooperate with the first protrusion. An elastic element is provided between the locking plate and the pin shaft, and the elastic element is configured so that its elastic force can drive the locking plate to move in a direction close to the pressure plate. When the pin shaft is at the first angle, the first protrusion is opposite to the first groove, so that the locking plate engages the first protrusion with the first groove under the action of the elastic element.

[0008] In an optional embodiment of the present invention, a limiting mechanism is provided between the pin shaft and the insulating base, and the limiting mechanism is assembled so that when the slide is not installed in the annular groove, the limiting mechanism can limit the rotation angle of the pin shaft within a preset angle range, and when the slide is installed in the annular groove, the limiting mechanism can release the restriction on the pin shaft; the first angle is outside the preset angle range.

[0009] In an optional embodiment of the present invention, the limiting mechanism includes a convex ring provided on the pin shaft, the convex ring abuts against the step hole provided on the insulating base, a second protrusion is provided on the end face of the convex ring, and a second groove is provided on the step surface of the step hole, the second protrusion and the second groove are both fan-shaped, and the fan center angle of the second groove is greater than the fan center angle of the second protrusion; when the slide is not installed in the annular groove, the pin shaft protrudes into the annular groove, and at this time the second protrusion is accommodated in the second groove, and when the slide is installed in the annular groove, the pin shaft can be squeezed by the slide so that the pin shaft exits the annular groove, and at this time the second protrusion is separated from the second groove.

[0010] In an optional embodiment of the present invention, a threaded hole is provided at the first end of the metal conductor, the first end of the metal conductor is fixedly connected to the insulating base by a screw, and the pressing plate is pressed against the insulating base by the screw.

[0011] In an optional embodiment of the present invention, a filling strip is provided in a gap between a groove wall on a side of the annular groove away from the center of the insulating base and an outer annular surface of the slideway.

[0012] In an optional embodiment of the present invention, a convex portion is provided at the second end of the head arc unit and the second end of each of the intermediate arc units near the inner arc surface; a notch portion adapted to the convex portion is provided at the first end of the tail arc unit and the first end of each of the intermediate arc units near the inner arc surface.

[0013] In an optional embodiment of the present invention, the dovetail block and the protruding portion are spaced apart.

[0014] The technical effect of the present invention is that the number of arc units in the present invention is an odd number, which can avoid the appearance of two parallel seams between the arc units. In addition, because except for the arc units at the head and tail ends, the other arc units are connected by dovetail grooves and dovetail blocks, so when the arc units at the head and tail ends are connected by fasteners, the other arc units can be interlocked, and there is no need to set fasteners between these arc units, which greatly simplifies the assembly process of the insulating base and improves the assembly efficiency; in addition, the slide of the present invention is formed by bending a continuous metal conductor. Compared with the closed-loop slide, the present invention reduces the manufacturing cost. Compared with the segmented slide, the present invention can ensure the continuity and flatness of the slide and improve the electrical connection performance of the slip ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded view of a contact slip ring assembly provided by an embodiment of the present invention; Figure 2is a three-dimensional diagram of the first arc-shaped unit provided by an embodiment of the present invention; Figure 3 is a three-dimensional diagram of a tail end arc unit provided by an embodiment of the present invention; Figure 4 is a three-dimensional diagram of an intermediate arc-shaped unit provided by an embodiment of the present invention; Figure 5 This is an end view of one end of the contact slip ring assembly provided by an embodiment of the present invention, where no slideway is provided; Figure 6 yes Figure 5 A partial view of the a direction; Figure 7 yes Figure 5 The b-direction partial view; Figure 8 yes Figure 5 AA section view; Figure 9 yes Figure 5 BB cross-sectional view; Figure 10 yes Figure 9 CC cross-sectional view; Figure 11 yes Figure 9 DD cross-sectional view; Figure 12 yes Figure 9 EE cross-sectional view; Figure 13 is a three-dimensional diagram of a tensioning member provided by an embodiment of the present invention; Figure 14 is an exploded view of a tensioning member provided by an embodiment of the present invention; Figure 15 is an exploded view of a tensioning member provided by an embodiment of the present invention from another perspective; Explanation of the reference numerals: 100, insulating base; 1001, stepped hole; 1002, second groove; 101, head end arc unit; 102, middle arc unit; 103, tail end arc unit; 110, ring groove; 120, dovetail groove; 130, dovetail block; 140, rectangular groove; 150, protrusion; 160, protruding portion; 170, notch portion; 10, pin shaft; 11, eccentric shaft; 12, convex ring; 121, second protrusion; 13, mating portion; 20, locking plate; 21, first protrusion; 30, pressure plate; 31, first groove; 40, elastic element; 50, screw; 200, slideway; 201, waist-shaped groove; 300, filling belt. DETAILED DESCRIPTION

[0016] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0017] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0018] The contact slip ring assembly provided by the present invention can be applied to, for example, CT equipment. The contact slip ring assembly can realize electrical connection between the host of the CT equipment and external equipment, thereby realizing transmission of electric energy or electric signals between the host and the external equipment.

[0019] See also Figure 1-15 As shown, the contact slip ring assembly provided by the embodiment of the present invention includes an insulating base 100 and a slideway 200; in a specific embodiment, the insulating base 100 can be made of an insulating material, or a metal material with an insulating coating on the surface; the slideway 200 is made of a conductive material, and the slideway 200 should have plastic deformation capability, and is preferably made of a metal material, such as copper.

[0020] The insulating base 100 is annular and is composed of a head end arc unit 101, a tail end arc unit 103 and an odd number of intermediate arc units 102, wherein the first end of the head end arc unit 101 is connected to the second end of the tail end arc unit 103, and each intermediate arc unit 102 is sequentially connected between the second end of the head end arc unit 101 and the first end of the tail end arc unit 103, and the first end of each intermediate arc unit 102 and the first end of the tail end arc unit 103 are provided with a dovetail groove 120 arranged along the radial direction of the insulating base 100, and the second end of each intermediate arc unit 102 and the second end of the head end arc unit 101 are provided with a dovetail groove 120 arranged along the radial direction of the insulating base 100. The dovetail groove 120 is matched with a dovetail block 130, the first end of the head end arc unit 101 is provided with a rectangular groove 140 arranged along the radial direction of the insulating base 100, and the second end of the tail end arc unit 103 is provided with a protrusion 150 that matches the shape of the rectangular groove 140, and the rectangular groove 140 and the protrusion 150 are connected by a fastener, and the fastener can be, for example, a bolt; the slide 200 is annular, and the slide 200 is concentrically arranged with the insulating base 100. Multiple slides 200 are arranged on one end face of the insulating base 100, and multiple slides 200 are arranged at intervals along the radial direction of the insulating base 100, and the slide 200 is formed by bending a continuous metal conductor.

[0021] It should be understood that the number of arc units in the present invention is an odd number, which can avoid the appearance of two parallel seams between the arc units. In addition, because except for the arc units at the head and tail ends, the other arc units are connected by dovetail grooves 120 and dovetail blocks 130, when the arc units at the head and tail ends are connected by fasteners, the other arc units can be interlocked, and there is no need to set fasteners between these arc units. This greatly simplifies the assembly process of the insulating base 100 and improves the assembly efficiency. In addition, the slide 200 of the present invention is formed by bending a continuous metal conductor. Compared with the closed-loop slide 200, the present invention reduces the manufacturing cost. Compared with the segmented slide 200, the present invention can ensure the continuity and flatness of the slide 200 and improve the electrical connection performance of the slip ring.

[0022] See also Figure 2 、 3As shown in Figures 4 and 8, in an optional embodiment of the present invention, an annular groove 110 for accommodating the slide 200 is provided on the end face of the insulating base 100, and an annular ridge 111 is provided on the groove wall on one side of the annular groove 110 close to the center of the insulating base 100. The cross-section of the annular ridge 111 is trapezoidal or triangular, and the protrusion height of the annular ridge 111 is L. A groove matching the annular ridge 111 is provided on the inner annular surface of the slide 200, and the width of the annular groove 110 is greater than the width of the slide 200, and the difference between the width of the annular groove 110 and the width of the slide 200 is greater than L; the first end of the metal conductor is fixedly connected to the insulating base 100, and a tensioning member is provided between the second end of the metal conductor and the insulating base 100, and the tensioning member is assembled to be able to tighten the metal conductor so that the inner annular surface of the slide 200 is tightly fitted with the groove wall on one side of the annular groove 110 close to the center of the insulating base 100.

[0023] In the prior art, the slideway and the insulating base are typically connected by gluing. The flatness of the slideway is easily affected by the thickness of the adhesive layer. If the thickness of the adhesive layer is uneven, the slideway's flatness will be poor, affecting the slideway's electrical connection performance. The present invention utilizes the annular ridge 111 on the sidewall of the annular groove 110 to precisely position the slideway 200, ensuring the flatness of the slideway 200 while simplifying the assembly process of the slideway 200.

[0024] See also Figure 1 、 8 As shown, in an optional embodiment of the present invention, a filling strip 300 is provided in the gap between the groove wall on one side of the annular groove 110 away from the center of the insulating base 100 and the outer annular surface of the slideway 200 . Taking the assembly of a single slide 200 as an example, after the insulating base 100 is spliced, the slide 200 is first placed in the annular groove 110. At this time, since the width of the annular groove 110 is greater than the width of the slide 200, the annular ridge 111 will not cause any obstruction to the slide 200. After the slide 200 is installed in the annular groove 110, the two ends of the slide 200 are tightened. At this time, the slide 200 will be close to the inner groove wall of the annular groove 110, and the slide 200 is self-positioned through the annular ridge 111. Finally, the filling belt 300 is installed in the gap between the slide 200 and the outer groove wall of the annular groove 110. The assembly of the slide 200 is completed. On the one hand, the filling belt 300 can fill the gap to prevent dust deposition. On the other hand, it can also limit the slide 200 to prevent the slide 200 from loosening.

[0025] See also Figure 9-15As shown, in an optional embodiment of the present invention, the tensioning member includes a pin 10, which is rotatably connected to the insulating base 100, and an eccentric shaft 11 is provided at the end of the pin 10, which protrudes into the annular groove 110, and the second end of the metal conductor is provided with a waist-shaped groove 201 that cooperates with the eccentric shaft 11, and the length direction of the waist-shaped groove 201 is arranged along the width direction of the metal conductor, and a locking mechanism is provided between the pin 10 and the insulating base 100, and the locking mechanism is assembled so that when the pin 10 is rotated to a first angle, the locking mechanism can keep the pin 10 at the first angle, and when the pin 10 is at the first angle, the eccentric shaft 11 is located at the position closest to the first end of the metal conductor; the end of the pin 10 away from the eccentric shaft 11 is provided with a mating portion 13 that cooperates with a screwing tool. The present invention utilizes an eccentric shaft 11 to tighten the slideway 200. This eccentric shaft 11 can adapt to the narrow space of the slideway 200, eliminating the need for a complex transmission mechanism and simplifying the assembly process of the slip ring assembly. A threaded hole is provided at the first end of the metal conductor, which is fixedly connected to the insulating base 100 via a screw 50. The pressure plate is pressed against the insulating base 100 by the screw 50. The locking mechanism includes a locking plate 20, which is synchronously rotated with the pin shaft 10 and slidably connected to the pin shaft 10 along the axial direction of the pin shaft 10. The locking plate 20 is provided with a first protrusion 21, and the insulating base 100 is provided with a pressure plate 30. The pressure plate 30 is fixedly connected to the insulating base 100, and the pressure plate 30 is provided with a first groove 31 that cooperates with the first protrusion 21. An elastic element 40 is provided between the locking plate 20 and the pin shaft 10, and the elastic element 40 is configured so that its elastic force can drive the locking plate 20 to move in the direction close to the pressure plate 30. When the pin shaft 10 is at the first angle, the first protrusion 21 is opposite to the first groove 31, so that the locking plate 20 engages the first protrusion 21 with the first groove 31 under the action of the elastic element 40.

[0026] The following combination Figure 9-15 , the working principle of the tensioning member is explained in detail: First, install the first end of the slide 200 into the annular groove 110, install the tensioning member into the countersunk hole reserved in the insulating base 100, and then fix the first end of the slide 200 to the insulating base 100 by screws 50. At the same time, the screws 50 can also fix the tensioning member in the countersunk hole; then install the entire slide 200 into the annular groove 110. This process requires adjusting the position of the second end of the slide 200 and reciprocating the pin 10 to insert the eccentric shaft 11 into the waist groove 201; finally, Figure 10 Take the perspective as an example, rotate the pin 10 clockwise until the eccentric shaft 11 reaches Figure 10 As shown in the position, the second end of the slide 200 is tightened by the eccentric shaft 11, and at the same time, the first protrusion 21 is opposite to the first groove 31, as shown in FIG. Figure 11 As shown, the first protrusion 21 engages with the first groove 31 under the action of the elastic element 40, restricting the locking plate 20 to its current angle. Since the locking plate 20 and the pin 10 are connected in synchronous rotation, the pin 10 is also restricted to its current angle, thereby maintaining the slideway 200 in a tensioned state. It should be noted that the above process requires that the pressure plate 30 does not rotate. In specific embodiments, for example, the countersunk hole and the pressure plate 30 can be configured as non-circular structures, such as elliptical, hexagonal, rectangular, etc.

[0027] See also Figure 9 、 12As shown in Figures 15, in an optional embodiment of the present invention, a limiting mechanism is provided between the pin shaft 10 and the insulating base 100, and the limiting mechanism is assembled so that when the slide 200 is not installed in the annular groove 110, the limiting mechanism can limit the rotation angle of the pin shaft 10 within a preset angle range, and when the slide 200 is installed in the annular groove 110, the limiting mechanism can release the restriction on the pin shaft 10; the first angle is outside the preset angle range. The limiting mechanism includes a convex ring 12 provided on the pin shaft 10, and the convex ring 12 abuts against the stepped hole 1001 provided on the insulating base 100. A second protrusion 121 is provided on the end surface of the convex ring 12, and a second groove 1002 is provided on the stepped surface of the stepped hole 1001. The second protrusion 121 and the second groove 1002 are both fan-shaped, and the fan center angle of the second groove 1002 is greater than the fan center angle of the second protrusion 121; when the slide 200 is not installed in the annular groove 110, the pin shaft protrudes into the annular groove 110, and at this time the second protrusion 121 is accommodated in the second groove 1002. When the slide 200 is installed in the annular groove 110, the pin shaft 10 can be squeezed by the slide 200 to make the pin shaft 10 withdraw from the annular groove 110, and at this time the second protrusion 121 is separated from the second groove 1002. It should be understood that if the pin shaft 10 is accidentally rotated to the first angle when adjusting the relative position of the eccentric shaft 11 and the waist-shaped groove in the early stage, the eccentric shaft 11 will be locked before being plugged into the waist-shaped groove 201. At this time, the tensioning member needs to be disassembled and reinstalled. In order to avoid this problem, the present invention provides the above-mentioned limiting mechanism, which can prevent the pin shaft 10 from rotating to the first angle before the eccentric shaft 11 and the waist-shaped groove 201 are plugged into, thereby avoiding the locking mechanism from being locked in advance. Its specific working principle The principle is as follows: before the second end of the slide 200 is installed in the annular groove 110, the pin 10 protrudes in the annular groove 110, and the second protrusion 121 is located in the second groove 1002. The rotation angle of the pin 10 is limited. When the waist groove at the second end of the slide 200 is aligned with the eccentric shaft 11, the second end of the slide 200 is installed in the annular groove 110. At this time, the slide 200 will squeeze the pin 10, so that the second protrusion 121 is separated from the second groove 1002. At this time, the pin 10 can rotate freely.

[0028] See also Figure 2 、 3As shown in Figures 4 and 5, in an optional embodiment of the present invention, a protruding portion 160 is provided at the second end of the leading arc unit 101 and the second end of each intermediate arc unit 102 near the inner arc surface; and a notch 170 is provided at the first end of the trailing arc unit 103 and the first end of each intermediate arc unit 102 near the inner arc surface, which is compatible with the protruding portion 160. The protruding portion 160 and the notch 170 enable radial positioning of each arc unit during assembly, thereby improving assembly accuracy and efficiency.

[0029] See also Figure 2 、 4 As shown, in an optional embodiment of the present invention, the dovetail block 130 and the protruding portion 160 are spaced apart, which can avoid the appearance of rounded corners between the dovetail block 130 and the protruding portion 160, ensure that adjacent arc units can fit tightly in the radial direction, and reduce assembly errors.

[0030] In summary, the number of arc units in the present invention is an odd number, which can avoid the appearance of two parallel seams between the arc units. In addition, because the arc units except the arc units at the head and tail ends are connected by dovetail grooves 120 and dovetail blocks 130, when the arc units at the head and tail ends are connected by fasteners, the other arc units can be interlocked, and there is no need to set fasteners between these arc units. This greatly simplifies the assembly process of the insulating base 100 and improves the assembly efficiency. In addition, the present invention The slide 200 is formed by bending a continuous metal conductor. Compared with the closed-loop slide 200, the present invention reduces the manufacturing cost. Compared with the segmented slide 200, the present invention can ensure the continuity and flatness of the slide 200, and improve the electrical connection performance of the slip ring; the present invention uses the annular ridge 111 on the side wall of the annular groove 110 to accurately position the slide 200, thereby ensuring the flatness of the slide 200 and simplifying the assembly process of the slide 200; the tensioning member provided by the present invention has a simple structure, is easy to operate, and improves assembly efficiency.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

[0032] In the description herein, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of the embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of the specific details or with other devices, systems, assemblies, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of the embodiments of the present invention.

Claims

1. A contact slip ring assembly, characterized in that: include: An insulating base (100) is annular and is formed by splicing a head end arc unit (101), a tail end arc unit (103) and an odd number of intermediate arc units (102), wherein the first end of the head end arc unit (101) is connected to the second end of the tail end arc unit (103), and each intermediate arc unit (102) is sequentially connected between the second end of the head end arc unit (101) and the first end of the tail end arc unit (103). The first end is provided with a dovetail groove (120) arranged along the radial direction of the insulating base (100), the second end of each of the intermediate arc-shaped units (102) and the second end of the head end arc-shaped unit (101) are provided with a dovetail block (130) matching the dovetail groove (120), the first end of the head end arc-shaped unit (101) is provided with a rectangular groove (140) arranged along the radial direction of the insulating base (100), the second end of the tail end arc-shaped unit (103) is provided with a protrusion (150) matching the shape of the rectangular groove (140), and the rectangular groove (140) and the protrusion (150) are connected by a fastener; A slideway (200), the slideway (200) is annular, the slideway (200) is concentrically arranged with the insulating base (100), a plurality of the slideways (200) are arranged on one end face of the insulating base (100), the plurality of the slideways (200) are spaced apart along the radial direction of the insulating base (100), and the slideway (200) is formed by bending a continuous metal conductor.

2. The contact slip ring assembly according to claim 1, characterized in that: An annular groove (110) for accommodating the slideway (200) is provided on the end surface of the insulating base (100), and an annular ridge (111) is provided on the groove wall of the annular groove (110) close to the center of the insulating base (100). The cross section of the annular ridge (111) is trapezoidal or triangular, and the protrusion height of the annular ridge (111) is L. A groove matching the annular ridge (111) is provided on the inner annular surface of the slideway (200), and the width of the annular groove (110) is greater than the width of the annular ridge (111). The width of the slideway (200) is greater than L, and the difference between the width of the annular groove (110) and the width of the slideway (200) is greater than L; the first end of the metal conductor is fixedly connected to the insulating base (100), and a tensioning member is provided between the second end of the metal conductor and the insulating base (100), and the tensioning member is assembled to be able to tighten the metal conductor so that the inner annular surface of the slideway (200) is tightly fitted with the groove wall of the annular groove (110) on one side close to the center of the insulating base (100).

3. The contact slip ring assembly according to claim 2, characterized in that: The tensioning member includes a pin (10), the pin (10) is rotatably connected to the insulating base (100), an eccentric shaft (11) is provided at the end of the pin (10), the eccentric shaft (11) protrudes into the annular groove (110), the second end of the metal conductor is provided with a waist groove (201) that cooperates with the eccentric shaft (11), the length direction of the waist groove (201) is arranged along the width direction of the metal conductor, a locking mechanism is provided between the pin (10) and the insulating base (100), the locking mechanism is assembled so that when the pin (10) is rotated to a first angle, the locking mechanism can keep the pin (10) at the first angle, and when the pin (10) is located at the first angle, the eccentric shaft (11) is located at the position closest to the first end of the metal conductor; the end of the pin (10) away from the eccentric shaft (11) is provided with a matching portion (13) that cooperates with a screwing tool.

4. The contact slip ring assembly according to claim 3, characterized in that: The locking mechanism includes a locking plate (20), the locking plate (20) is synchronously rotated with the pin shaft (10), and the locking plate (20) is slidably connected to the pin shaft (10) along the axial direction of the pin shaft (10), the locking plate (20) is provided with a first protrusion (21), the insulating base (100) is provided with a pressure plate (30), the pressure plate (30) is fixedly connected to the insulating base (100), and the pressure plate (30) is provided with a first groove (31) that cooperates with the first protrusion (21). 1), an elastic element (40) is provided between the locking plate (20) and the pin shaft (10), and the elastic element (40) is configured so that its elastic force can drive the locking plate (20) to move in a direction close to the pressure plate (30), and when the pin shaft (10) is located at the first angle, the first protrusion (21) is opposite to the first groove (31), so that the locking plate (20) engages the first protrusion (21) with the first groove (31) under the action of the elastic element (40).

5. The contact slip ring assembly according to claim 4, characterized in that: A limiting mechanism is provided between the pin shaft (10) and the insulating base (100), and the limiting mechanism is configured such that when the slideway (200) is not installed in the annular groove (110), the limiting mechanism can limit the rotation angle of the pin shaft (10) within a preset angle range, and when the slideway (200) is installed in the annular groove (110), the limiting mechanism can release the restriction on the pin shaft (10); the first angle is outside the preset angle range.

6. The contact slip ring assembly according to claim 5, characterized in that: The limiting mechanism includes a convex ring (12) provided on the pin shaft (10), the convex ring (12) abuts against a step hole (1001) provided on the insulating base (100), a second protrusion (121) is provided on the end surface of the convex ring (12), and a second groove (1002) is provided on the step surface of the step hole (1001), the second protrusion (121) and the second groove (1002) are both fan-shaped, and the fan center angle of the second groove (1002) is greater than that of the second protrusion (121). fan center angle; when the slideway (200) is not installed in the annular groove (110), the pin shaft protrudes into the annular groove (110), and at this time the second protrusion (121) is accommodated in the second groove (1002); when the slideway (200) is installed in the annular groove (110), the pin shaft (10) can be squeezed by the slideway (200) so that the pin shaft (10) exits the annular groove (110), and at this time the second protrusion (121) is separated from the second groove (1002).

7. The contact slip ring assembly according to claim 4, characterized in that: A threaded hole is provided at the first end of the metal conductor, and the first end of the metal conductor is fixedly connected to the insulating base (100) via a screw (50), and the pressing plate (30) is pressed onto the insulating base (100) by the screw (50).

8. The contact slip ring assembly according to claim 2, wherein: A filling strip (300) is provided in a gap between a groove wall on one side of the annular groove (110) away from the center of the insulating base (100) and the outer annular surface of the slideway (200).

9. The contact slip ring assembly according to claim 1, wherein: The second end of the head end arc unit (101) and the second end of each intermediate arc unit (102) are provided with a protruding portion (160) at a position close to the inner arc surface; the first end of the tail end arc unit (103) and the first end of each intermediate arc unit (102) are provided with a notch portion (170) adapted to the protruding portion (160) at a position close to the inner arc surface.

10. The contact slip ring assembly according to claim 9, characterized in that: The dovetail block (130) and the protruding portion (160) are spaced apart.

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