Conductive slip ring with conductive contacts arranged in radial direction

Abstract

The utility model discloses a conductive slip ring with conductive contacts arranged in the radial direction, and belongs to the technical field of manufacturing of conductive slip rings rotating at high speed. The motor comprises a housing, a stator and a rotor. The rotor is in the shape of a rotary body with a built-in axial through hole, a step surface is arranged at the front end of the rotor, side-by-side conducting rings are embedded into other outer circle parts except the step surface, and a bearing is tightly sleeved on the step surface; each conducting ring is externally connected with a rotor connecting wire, and the free end of the rotor connecting wire extends out of the rotor. The stator is tightly connected to the outer circle face of the bearing in a sleeved mode, symmetrical installation spaces are reserved in the portions, connected to the peripheries of the conducting rings in a sleeved mode, of the stator, a circuit board is fixedly connected in each installation space, conducting contacts which are arranged in the radial direction are connected to the circuit boards, the conducting contacts correspond to the conducting rings one to one, and the bottom ends of the conducting contacts abut against the ring faces of the conducting rings. And each conductive contact is externally connected with a stator connecting wire. According to the utility model, the installation mode of radial arrangement of the conductive contacts is easy to realize abutting operation so as to effectively reduce the risk of power failure.

Description

Technical Field

[0001] This utility model relates to the field of high-speed rotating conductive slip ring manufacturing technology, and more specifically to a conductive slip ring with radially arranged conductive contacts. Background Technology

[0002] Conductive slip rings are devices used to solve the problem of wire entanglement during high-speed rotation of equipment, while simultaneously transmitting electrical energy and signals during rotation. A conductive slip ring consists of a stator, rotor, conductive rings, and contacts. Currently, the conductive rings are typically embedded in an insulating material, usually a plastic rotor. This material usually requires the rotor with the embedded conductive ring to be manufactured using injection molding. Therefore, the rotor manufacturing process for conductive slip rings is lengthy and costly. Furthermore, the contacts use steel wire or carbon brushes for conductivity. Using steel wire typically requires injection molding to embed it in the stator, resulting in a long manufacturing cycle. Using carbon brushes as contacts also makes the conductive slip ring larger. Moreover, when using steel wire or carbon brushes for the contacts, prolonged high-speed rotation can lead to wear and tear, potentially causing a short circuit. Utility Model Content

[0003] 1. The technical problem to be solved by the utility model:

[0004] To address the aforementioned problems in the manufacture of existing conductive slip rings, this invention provides a conductive slip ring with radially arranged conductive contacts. It is assembled from the inside out using a rotor with a stepped surface and a rotating body shape, which simplifies the operation and achieves a short manufacturing cycle and low manufacturing cost. Moreover, the radial arrangement of conductive contacts facilitates the clamping operation and effectively reduces the risk of power failure.

[0005] 2. Technical Solution:

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] A conductive slip ring with radially arranged conductive contacts includes a housing, a stator, and a rotor. The rotor is a rotating body with a built-in axial through hole, and its front end has a stepped surface. Parallel conductive rings are embedded in the outer circumference of the rotor, excluding the stepped surface. A bearing is tightly fitted onto the stepped surface. Each conductive ring is externally connected to a rotor connecting wire, the free end of which extends out of the rotor. The stator is tightly fitted onto the outer circumference of the bearing, and symmetrical installation spaces are reserved in the portion surrounding the conductive rings. A circuit board is fixedly connected in each installation space, and radially arranged conductive contacts are connected to the circuit board. Each conductive contact corresponds one-to-one with a conductive ring, and the bottom end of the conductive contact abuts against the circumference of the conductive ring. Each conductive contact is externally connected to a stator connecting wire, and the outer circumference of the stator is fitted and fixed inside the housing, with the free end of the stator connecting wire extending out of the housing. An anti-rotation hole is provided on the housing. The radial arrangement of the conductive contacts facilitates abutment operation, effectively reducing the risk of power failure.

[0008] A further technical solution involves using elastic conductive contacts, with the bottom working end elastically pressed against the surface of the conductive ring. This further enables the conductive contacts and the conductive ring to conduct electricity through elastic contact, reducing the impact of current interruption on high-speed rotation.

[0009] A further technical solution involves multiple conductive rings arranged side-by-side, with options for 4, 6, 8, or more, offering strong adaptability.

[0010] 3. Beneficial effects:

[0011] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0012] The conductive slip ring with radially arranged conductive contacts of this utility model can be adapted to conductive slip rings of various sizes and has a short manufacturing time. The conductive contacts are standard parts with small-sized elastic contacts. Compared with carbon brushes as contacts, elastic contacts are smaller in size and simpler in structure. Attached Figure Description

[0013] Figure 1 A schematic diagram of the cut-open structure of the conductive slip ring housing with radially arranged conductive contacts in a specific embodiment;

[0014] Figure 2 This is a radial cross-sectional schematic diagram of a conductive slip ring with radially arranged conductive contacts, as shown in a specific embodiment.

[0015] In the diagram: 1. Housing; 2. Stator; 3. Circuit board; 4. Conductive contact; 5. Conductive ring; 6. Rotor; 7. Screw; 8. Bearing; 9. Stator connecting wire; 10. Rotor connecting wire; 11. Anti-rotation hole; 12. Axial through hole; 21. Installation space; 31. Fixing hole; 61. Stepped surface. Detailed Implementation

[0016] To further understand the contents of this utility model, a detailed description of the utility model is provided in conjunction with the accompanying drawings.

[0017] Example 1

[0018] In this embodiment, a conductive slip ring with radially arranged conductive contacts, such as... Figure 1 , 2As shown, it includes: a housing 1, a stator 2, and a rotor 6; the rotor 6 is a rotating body with a built-in axial through hole 12, and its front end is provided with a stepped surface 61. The other outer circular portions, excluding the stepped surface 61, are inlaid with parallel conductive rings 5. Bearings 8 are tightly fitted onto the stepped surface 61; each conductive ring 5 is externally connected to a rotor connecting wire 10, and the free end of the rotor connecting wire 10 extends out of the rotor 6; the stator 2 is tightly fitted onto the outer circular surface of the bearing 8, and symmetrical installation spaces 21 are reserved in the portion surrounding the conductive rings 5. Circuit boards 3 are fixedly connected within the installation space 21. Radially arranged conductive contacts 4 are connected to the circuit boards 3, with each conductive contact 4 corresponding to a conductive ring 5. The bottom end of each conductive contact 4 abuts against the surface of the conductive ring 5. Each conductive contact 4 is externally connected to a stator connecting wire 9. The outer circle of the stator 2 is sleeved and fixed inside the housing 1, with the free end of the stator connecting wire 9 extending out of the housing 1. Anti-rotation holes 11 are provided on the housing 1. The radial arrangement of the conductive contacts 4 facilitates abutment operation, effectively reducing the risk of power failure.

[0019] In this embodiment, the conductive slip ring with radially arranged conductive contacts can use epoxy resin instead of plastic as the rotor's insulating material. The epoxy resin rotor eliminates the need for mass production of costly injection molds; a simple casting mold can be machined. After the conductive ring 5 is placed into the mold, it can be quickly cast and molded. It can also be processed after molding, adapting to conductive slip rings of various sizes. The manufacturing time is short. Moreover, the assembly and manufacturing are carried out from the inside out using a rotor 6 with a stepped surface, which is simple to operate, thus achieving the effect of short manufacturing cycle and low manufacturing cost.

[0020] Example 2

[0021] The conductive slip ring with radially arranged conductive contacts in this embodiment has the same basic structure as in embodiment 1, with the following differences or improvements: Figure 1 , 2 As shown, conductive contact 4 is a small-sized elastic conductive contact with dimensions of ￠2mm*3.7mm. Its bottom working end elastically abuts against the ring surface of conductive ring 5, further achieving a tight-fitting conductive connection between conductive contact 4 and conductive ring 5, reducing the impact of current interruption on high-speed rotation. Multiple conductive rings 5 ​​are arranged side-by-side, with options for 4, 6, 8, or more, offering strong adaptability. Both conductive contact 4 and conductive ring 5 are made of brass. A fixing hole 31 is provided on circuit board 3; screws engage with the fixing hole 31 to mount circuit board 3 onto stator 2.

[0022] In this embodiment, conductive slip rings with radially arranged conductive contacts are used. Four conductive rings 5 ​​are evenly embedded in the outer circle of the rotor 6. A rotor connecting wire 10 is welded to the inner side of each conductive ring 5. The rotor connecting wire 10 extends from one end of the rotor 6. The inner hole of the bearing 8 is installed at one end of the rotor 6. The stator 2 is installed on the outer circle of the bearing 8. The circuit board 3 is symmetrically installed on the stator 2. Four elastic conductive contacts 4 are arranged and welded on the circuit board 3. The other end of the elastic conductive contacts 4 can effectively maintain elastic tight contact with the conductive ring 5. The outer circle of the stator 2 is fitted into the outer shell 1, and the stator 2 and the outer shell 1 are fixed by screws 7. There is an anti-rotation hole 11 on the outer shell 1. Four stator connecting wires 9 are welded on the circuit board 3. Each stator connecting wire 9 is connected to the elastic conductive contact 4. The stator connecting wire 9 extends from the upper hole of the outer shell 1. During application, the axial through hole 12 of the conductive slip ring is installed on the rotating shaft of the equipment and fixed to the equipment through the anti-rotation hole 11. The equipment is connected to the rotor connecting wire 10 and the stator connecting wire 9 respectively. When the rotating shaft of the equipment rotates, electrical energy or electrical signal is transmitted from the relatively stationary stator connecting wire 9 through the elastic conductive contact 4 and the conductive ring 5 to the end of the rotor connecting wire 10. Because the elastic conductive contact 4 always maintains contact with the conductive ring 5, the wires on the stator 2 and the rotor 6 are connected when the rotating shaft of the equipment rotates, and the wires are not tangled.

[0023] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure and manufacturing steps are not limited to these. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A conductive slip ring with radially arranged conductive contacts, characterized in that, include: The rotor (6) is a rotating body with a built-in axial through hole (12). A stepped surface (61) is provided at its front end. The other outer circular parts, except for the stepped surface (61), are embedded with parallel conductive rings (5). A bearing (8) is tightly fitted on the stepped surface (61). Each conductive ring (5) is externally connected to a rotor connecting wire (10). The free end of the rotor connecting wire (10) extends out of the rotor (6). The stator (2) is tightly fitted to the outer surface of the bearing (8), and symmetrical installation spaces (21) are reserved in the part that is fitted around the conductive ring (5). A circuit board (3) is fixedly connected in each installation space (21). A radially arranged conductive contact (4) is connected on the circuit board (3). The conductive contact (4) corresponds one-to-one with the conductive ring (5). The bottom end of the conductive contact (4) is pressed against the ring surface of the conductive ring (5). Each conductive contact (4) is externally connected to a stator connecting wire (9). The outer circle of the stator (2) is fitted and fixed inside the outer shell (1). The free end of the stator connecting wire (9) extends out of the outer shell (1). An anti-rotation hole (11) is provided on the outer shell (1).

2. The conductive slip ring with radially arranged conductive contacts according to claim 1, characterized in that: The conductive contact (4) is an elastic conductive contact, and its bottom working end is elastically pressed against the ring surface of the conductive ring (5).

3. The conductive slip ring with radially arranged conductive contacts according to claim 1, characterized in that: The conductive rings (5) are multiple in a row.

Images