Spiral spring-shaped wire conductive slip ring

Abstract

The utility model belongs to the technical field of circuit connection, and particularly relates to a spiral spring-shaped wire conductive slip ring which comprises a stator part and a rotor part rotationally connected in the stator part, and one end of the stator part and one end of the rotor part are connected with a stator wire and a rotor wire respectively. The other ends of the stator wire and the rotor wire are connected with spiral spring wires. The elastic spiral spring-shaped wire is directly assembled on the rotor assembly and the stator assembly of the slip ring, the conductive slip ring is assembled on the motion assembly of the equipment and performs multi-degree-of-freedom motion along with the motion assembly, and the elastic spiral spring-shaped wire on the conductive slip ring can be lengthened or shortened along with the motion of the conductive slip ring. The defect that a strip-shaped wire of the conductive slip ring cannot be prolonged can be overcome, the requirements that the conductive slip ring is assembled on a movement assembly of equipment, performs multi-degree-of-freedom movement along with the movement assembly and transmits data signals and power signals are effectively met, and the performance consistency, the electric power, the electric signal transmission stability and the service life of the conductive slip ring can be effectively ensured.

Description

Technical Field

[0001] The present application relates to the technical field of circuit connection, and in particular to a spiral spring-shaped conductive wire slip ring. Background Art

[0002] Conductive slip rings are used to transmit data signals and power signals between two relatively rotating parts. They are suitable for places that require unlimited continuous or intermittent rotation and at the same time need to transmit power or data from a fixed position to a rotating position. Therefore, they are widely used in aerospace, military equipment, precision medical equipment, robots and other equipment.

[0003] At present, the slip rings in the same industry in China all use non-ductile wires, as shown in the attached figure of the manual. Figure 7 As shown, both the stator assembly and the rotor assembly use linear conductors, the length of which is fixed and mounted on the equipment. If the slip ring moves, the linear conductor will be broken and the conductive slip ring will lose its function. The stator assembly is fixed on the equipment, and the rotor assembly rotates. The slip ring cannot achieve multi-degree-of-freedom motion with the moving assembly due to the pull of the conductor, and cannot meet the requirements of the conductive slip ring being assembled on the moving assembly of the equipment and moving with the moving assembly to perform multi-degree-of-freedom motion and transmit data signals and power signals, making it difficult to meet the needs of market conditions. Utility Model Content

[0004] The purpose of the present application is to provide a spiral spring-shaped conductive wire conductive slip ring to solve the technical problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solution: a coil spring-shaped conductor conductive slip ring, comprising a stator portion and a rotor portion rotatably connected to the stator portion, wherein one end of the stator portion and the rotor portion are respectively connected to a stator conductor and a rotor conductor, and the other ends of the stator conductor and the rotor conductor are both connected to a coil spring conductor.

[0006] In one embodiment, a bracket is fixed to one side of the stator part and one side of the rotor part, and the stator wire and the rotor wire pass through the bracket and are connected to the coil spring wire.

[0007] In one embodiment, positioning holes for accommodating the stator wire and the rotor wire are respectively opened inside the two brackets, and buffer sleeves are fixed to the inner walls of the positioning holes. The two buffer sleeves are respectively sleeved on the outside of the stator wire and the rotor wire.

[0008] In one embodiment, a limiting ring for limiting the position of the rotor part is connected to one side of the stator part, and a ball is rotatably connected to one side of the limiting ring, and the ball is in active contact with the outer surface of one side of the rotor part.

[0009] In one embodiment, a positioning screw hole is provided inside the limiting ring, and the limiting ring is fixed to one side of the stator part by screws.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1) The present application uses elastic coil spring-shaped wires to be directly assembled on the rotor assembly and stator assembly of the slip ring. The conductive electric slip ring is assembled on the moving assembly of the equipment and moves with the moving assembly in multiple degrees of freedom. The elastic coil spring-shaped wires on the conductive slip ring will lengthen or shorten as the moving assembly moves, which can solve the defect that the wires of the conductive slip ring cannot be extended. It can effectively ensure that the conductive slip ring is assembled on the moving assembly of the equipment and moves with the moving assembly in multiple degrees of freedom and transmits data signals and power signals. The consistency of the performance of the conductive slip ring, the stability of the electric power and electric signal transmission, and the lifespan can be effectively guaranteed.

[0012] 2) The present invention has a newly designed coil spring-shaped conductor conductive slip ring structure, which uses coil spring-shaped conductors as the input and output wires of the slip ring. Unlike traditional conductive slip ring structures, it solves the problem that slip rings cannot be used in moving structural components. In addition, during use, the coil spring-shaped conductor conductive slip ring structure has a slip ring body that can achieve axial reciprocating and rotation around the axis with superimposed multi-degree-of-freedom motion, which can meet the high-quality transmission of data signals and power signals between dynamic structural components of facilities and equipment such as aerospace, military equipment, precision medical equipment, and robots. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of this application;

[0014] Figure 2 This is a structural diagram of Example 1 of the present application;

[0015] Figure 3 This is a structural diagram of the second embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of the expanded structure of the coil spring wire according to the second embodiment of the present application;

[0017] Figure 5 This is a schematic diagram of the structure rotating around the central axis in the second embodiment of the present application;

[0018] Figure 6 This is a schematic diagram of the limit ring structure of this application;

[0019] Figure 7 It is a structural diagram of a conductive slip ring in the prior art.

[0020] In the figure: 1. stator part; 11. stator wire; 2. rotor part; 21. rotor wire; 3. coil spring wire; 4. bracket; 5. buffer sleeve; 6. limit ring; 61. positioning screw hole; 62. ball bearing. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0023] Example 1:

[0024] See also Figure 1 and Figure 6 The present application provides a technical solution: a coil spring shaped wire conductive slip ring, comprising a stator part 1 and a rotor part 2 rotatably connected to the stator part 1, wherein one end of the stator part 1 and the rotor part 2 are respectively connected to a stator wire 11 and a rotor wire 21, and the other ends of the stator wire 11 and the rotor wire 21 are both connected to a coil spring wire 3, and the other ends of the two coil spring wires 3 can be connected to the terminal device wire. When the terminal device moves, the coil spring wire 3 will lengthen or shorten with the movement of the terminal device, which can solve the defect that the wire of the conductive slip ring cannot be extended, and effectively ensure that the conductive slip ring is assembled in the moving component of the device and moves with the moving component in multiple degrees of freedom and transmits data signals and power signals. The consistency of the performance of the conductive slip ring, the stability of the electric power and electric signal transmission and the life can be effectively guaranteed, and the function of 3D movement can be realized while moving radially and axially.

[0025] A bracket 4 is fixed to one side of the stator part 1 and one side of the rotor part 2 , and the stator wire 11 and the rotor wire 21 pass through the bracket 4 and are connected to the coil spring wire 3 .

[0026] Positioning holes for accommodating the stator wire 11 and the rotor wire 21 are respectively opened inside the two brackets 4, and buffer sleeves 5 are fixed to the inner walls of the positioning holes. The two buffer sleeves 5 are respectively sleeved on the outside of the stator wire 11 and the rotor wire 21.

[0027] In order to prevent the conductive slip ring from being affected by the vibration of the coil spring wire 3 due to its elastic characteristics during the movement of the terminal device, two brackets 4 are provided to ensure that the coil spring wire 3 at both ends of the stator part 1 and the rotor part 2 can maintain a smooth movement trajectory when stretching and contracting, which can reduce the disordered swing of the cable. At the same time, the buffer sleeve 5 (made of rubber material) can absorb the vibration energy, reduce the vibration amplitude, avoid the vibration from being transmitted to the slip ring, and ensure the stability of the conductive slip ring.

[0028] A retaining ring 6 is connected to one side of the stator portion 1 to limit the position of the rotor portion 2. A ball bearing 62 is rotatably connected to one side of the retaining ring 6, and the ball bearing 62 is in active contact with the outer surface of one side of the rotor portion 2. In one embodiment, a positioning screw hole 61 is defined within the retaining ring 6, and the retaining ring 6 is fixed to one side of the stator portion 1 by screws.

[0029] During the movement, the terminal device movement component pulls the coil spring wire 3, and the pulling force is transmitted to the rotor part 2 through the coil spring wire 3. In order to avoid affecting the contact stability between the rotor part 2 and the internal contacts of the stator part 1, a limit ring 6 is installed on one side of the stator part 1. The limit ring 6 limits and positions the rotor part 2 through the ball 62, so that even if the rotor part 2 is subjected to the pulling force generated by the coil spring wire 3, it can still maintain a stable position in the stator part 1, thereby avoiding the device pulling the coil spring wire 3 when performing free movement, causing the stability of the internal contacts of the conductive slip ring to be affected.

[0030] Example 2:

[0031] See also Figure 2 The difference between Example 2 and Example 1 is that the stator wire 11 at one end of the stator part 1 is not connected to the coil spring wire 3 and the bracket 4. Only the rotor wire 21 at one end of the rotor part 2 is connected to the coil spring wire 3. At the same time, the bracket 4 is fixed to one side of the rotor part 2. This configuration facilitates the connection of the motion component adjacent to the rotor part 2. In order to match the movement of the motion component of the terminal device adjacent to the rotor part 2, a single motion component can be connected to the rotor wire 21 at one end of the rotor part 2, and the stator part 1 can be positioned on the device.

[0032] Example 3:

[0033] See also Figure 3-Figure 5The present application provides a technical solution: the difference between Example 3 and Example 1 is that the stator wire 11 at one end of the stator part 1 is connected to the coil spring wire 3, while the rotor wire 21 at one end of the rotor part 2 is not connected to the coil spring wire 3, and the bracket 4 is not connected to one side of the rotor part 2. This configuration is convenient for matching the connection of the moving component on one side of the stator part 1, and it is convenient to connect the moving component adjacent to the stator part 1 and the stator wire 11 through the coil spring wire 3.

[0034] The above shows and describes the basic principles, main features and advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present application, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0035] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A coil spring-shaped conductive wire slip ring, comprising a stator portion (1) and a rotor portion (2) rotatably connected to the stator portion (1), characterized in that: One end of the stator part (1) and the rotor part (2) are respectively connected to a stator wire (11) and a rotor wire (21), and the other end of each of the stator wire (11) and the rotor wire (21) are connected to a coil spring wire (3).

2. The spiral spring-shaped conductive wire conductive slip ring according to claim 1, characterized in that: One side of the stator part (1) and one side of the rotor part (2) are both fixedly connected to a bracket (4), and the stator wire (11) and the rotor wire (21) both pass through the bracket (4) and are connected to the coil spring wire (3).

3. The spiral spring-shaped conductive wire conductive slip ring according to claim 2, characterized in that: Positioning holes for accommodating the stator conductor (11) and the rotor conductor (21) are respectively provided inside the two brackets (4), and a buffer sleeve (5) is fixedly connected to the inner wall of the positioning hole. The two buffer sleeves (5) are respectively sleeved on the outside of the stator conductor (11) and the rotor conductor (21).

4. The spiral spring-shaped conductive wire conductive slip ring according to claim 3, characterized in that: One side of the stator part (1) is connected to a limiting ring (6) for limiting the position of the rotor part (2), and one side of the limiting ring (6) is rotatably connected to a ball (62), and the ball (62) is in active contact with the outer surface of one side of the rotor part (2).

5. The spiral spring-shaped conductive wire conductive slip ring according to claim 4, characterized in that: A positioning screw hole (61) is provided inside the limiting ring (6), and the limiting ring (6) is fixed to one side of the stator part (1) by screws.

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