Current conductive slip ring

Abstract

The utility model discloses a current conductive slip ring, and aims to solve the problem that the current-carrying capability is weak and the use of the current conductive slip ring is affected when the current conductive slip ring is applied to the transmission of a large current load. The slip ring comprises a stator, a mounting groove is formed in the left side of the stator, a rotor is rotationally connected to the inner wall of the mounting groove, a plurality of conductive copper rings are fixedly connected to the outer surface of the rotor, an electric brush carrier is arranged in the mounting groove, and multiple sets of brush wires corresponding to the conductive copper rings are mounted on the side, close to the conductive copper rings, of the electric brush carrier. And each group of brush wires is of a splayed structure and is in elastic contact with the front side and the rear side of the conductive copper ring respectively. Each group of brush wires is of a splayed structure, and each group of brush wires are respectively and elastically contacted with the front side and the rear side of the conductive copper ring after being installed, so that the contact area with the conductive copper ring is increased, the temperature rise of the brush wires and the conductive copper ring is reduced under the condition of transmitting the same power, and the conductive slip ring can reliably operate for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of conductive slip rings, and particularly relates to a current conductive slip ring. Background Art

[0002] A slip ring, also known as a rotary electrical interface or an electrical rotary joint, can be used in any system that requires the transmission of power and data signals from a fixed structure to a rotating structure during unrestricted continuous rotation. It is often used in electromechanical systems that require unrestricted, continuous or intermittent rotation for the transmission of power and data signals, which can simplify and improve system performance without damaging the wires.

[0003] In the existing conductive slip ring, the contact point on the elastic piece contacts with the conductive ring. The contact point is pressed tightly between the elastic piece and the conductive ring under the elastic force of the elastic piece. As the conductive ring rotates, the contact point slides on the surface of the conductive ring. However, due to the small actual contact area of the contact point, when applied to the transmission of large current loads, the current-carrying capacity is weak, and overheating is likely to occur, affecting the use of the conductive slip ring. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a current conductive slip ring, which aims to solve the problems that in the existing conductive slip ring, when applied to the transmission of large current loads, the current-carrying capacity is weak, overheating is likely to occur, and the use of the conductive slip ring is affected.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the utility model provides such a current conductive slip ring, which includes a stator. An installation groove is opened on the left side of the stator, and a rotor is rotatably connected to the inner wall of the installation groove. A plurality of conductive copper rings are fixedly connected to the outer surface of the rotor. A brush holder is arranged inside the installation groove. On the side of the brush holder close to the conductive copper rings, multiple groups of brush wires corresponding to the conductive copper rings are installed. Each group of brush wires is in an eight-shaped structure and elastically contacts the front and back sides of the conductive copper rings respectively.

[0008] Preferably, the left and right sides of the outer surface of the rotor are rotatably connected to two fixing rings through bearings. The stator is sleeved on the outer surfaces of the two fixing rings and fixed by screws. A fixing rod is fixedly connected between the two fixing rings.

[0009] Furthermore, an installation groove is opened on the outer surface of the fixing ring, and a sealing ring is fixedly connected to the inside of the installation groove.

[0010] Even further, a plurality of first wires are fixedly connected to the right side of the stator, and the brush wires are electrically connected to the first wires.

[0011] Further, a second wire is fixedly connected to the left side of the rotor, and the second wire is electrically connected to the conductive copper ring.

[0012] Further, a plurality of annular grooves are formed on the outer surface of the rotor, and the conductive copper ring is fixedly connected inside the annular grooves.

[0013] Further, the brush wire includes a circular compression pipe and a conductive wire. One end of the conductive wire is fixedly connected inside the circular compression pipe, and the circular compression pipe is fixedly connected to the brush holder.

[0014] Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, when in use, the conductive wire on the brush wire contacts the outer wall of the conductive copper ring for signal or power transmission. Since each group of brush wires is in an eight-shaped structure, after installation, each group of brush wires elastically contacts the front and rear sides of the conductive copper ring respectively, thereby increasing the contact area with the conductive copper ring, reducing the temperature rise of the brush wire and the conductive copper ring under the same transmitted power, improving the current-carrying capacity of the conductive slip ring, and further effectively controlling the internal temperature, so that the conductive slip ring can operate reliably for a long time. Description of the drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0018] Figure 2 is a front-view sectional structural schematic diagram of the present utility model.

[0019] Figure 3 is a structural schematic diagram of the rotor of the present utility model.

[0020] Figure 4 is the Figure 3 enlarged structural schematic diagram at A in the present utility model.

[0021] Figure 5 is a three-dimensional structural schematic diagram of the brush wire of the present utility model.

[0022] The reference numerals in the drawings are: 1, stator; 2, installation groove; 3, rotor; 4, fixing ring; 5, fixing rod; 6, conductive copper ring; 7, brush holder; 8, brush wire; 9, sealing ring; 10, first wire; 11, second wire; 12, annular groove; 801, circular compression pipe; 802, conductive wire. Specific embodiments

[0023] This specific embodiment is a current conductive slip ring, and its structural schematic diagram is as shown in Figures 1-5As shown in the figure, the slip ring includes a stator 1. An installation groove 2 is provided on the left side of the stator 1. The inner wall of the installation groove 2 is rotatably connected with a rotor 3. A plurality of conductive copper rings 6 are fixedly connected to the outer surface of the rotor 3. A brush holder 7 is arranged inside the installation groove 2. On the side of the brush holder 7 close to the conductive copper rings 6, a plurality of groups of brush wires 8 corresponding to the conductive copper rings 6 are installed. Each group of brush wires 8 is in a figure-eight structure and is elastically in contact with the front and rear sides of the conductive copper rings 6 respectively.

[0024] As Figure 1 , Figure 2 and Figure 3 shown: In this embodiment, two fixing rings 4 are rotatably connected to the left and right sides of the outer surface of the rotor 3 through bearings. The stator 1 is sleeved on the outer surface of the two fixing rings 4 and fixed by screws. A fixing rod 5 is fixedly connected between the two fixing rings 4. By setting the stator 1 to be fixed to the fixing rings 4 with screws, the stator 1 can be well supported.

[0025] As Figure 2 and Figure 3 shown: In this embodiment, an installation groove is provided on the outer surface of the fixing ring 4. A sealing ring 9 is fixedly connected inside the installation groove. By providing the sealing ring 9, the sealing performance is better after the stator 1 is fixed to the fixing ring 4 with screws, and dust entry is avoided.

[0026] As Figure 1 and Figure 2 shown: In this embodiment, a plurality of first wires 10 are fixedly connected to the right side of the stator 1. The brush wires 8 are electrically connected to the first wires 10.

[0027] During use, the first wires 10 are connected to an external power supply, and signals or power are transmitted through the contact between the conductive copper rings 6 and the brush wires 8.

[0028] As Figure 1 and Figure 2 shown: In this embodiment, a second wire 11 is fixedly connected to the left side of the rotor 3. The second wire 11 is electrically connected to the conductive copper rings 6.

[0029] During use, the second wire 11 is connected to a using device. The rotor 3 can rotate inside the stator 1, and signals or power are transmitted through the contact between the conductive copper rings 6 and the brush wires 8.

[0030] As Figure 3 and Figure 4 shown: In this embodiment, a plurality of annular grooves 12 are provided on the outer surface of the rotor 3. The conductive copper rings 6 are fixedly connected inside the annular grooves 12. In this way, the conductive copper rings 6 can be arranged at the bottom of the annular grooves 12, and the barrier between adjacent two annular grooves 12 improves the insulation performance.

[0031] As Figure 4 and Figure 5As shown: In this embodiment, the brush wire 8 includes a circular compression joint 801 and a conductive wire 802. One end of the conductive wire 802 is fixedly connected inside the circular compression joint 801, and the circular compression joint 801 is fixedly connected to the brush holder 7, making it more convenient to fix the brush holder 7 through the circular compression joint 801.

[0032] Working principle: By setting the sealing ring 9, the stator 1 is fixed to the fixing ring 4 with screws, resulting in better sealing performance and preventing dust from entering. During use, as the rotor 3 rotates, the conductive wire 802 on the brush wire 8 contacts the outer wall of the conductive copper ring 6 for signal or power transmission. Since each group of brush wires 8 is in an eight-shaped structure, after installation, each group of brush wires 8 elastically contacts the front and back sides of the conductive copper ring 6 respectively, thereby increasing the contact area with the conductive copper ring 6. Under the condition of transmitting the same power, the temperature rise of the brush wire 8 and the conductive copper ring 6 is reduced, the current-carrying capacity of the conductive slip ring is improved, and thus the internal temperature can be effectively controlled, enabling the conductive slip ring to operate reliably for a long time.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are the preferred implementation solutions of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. A current-conducting slip ring, the slip ring comprising a stator (1), characterized in that: A mounting groove (2) is provided on the left side of the stator (1); a rotor (3) is rotatably connected to the inner wall of the mounting groove (2); a plurality of conductive copper rings (6) are fixedly connected to the outer surface of the rotor (3); a brush holder (7) is provided inside the mounting groove (2); a plurality of groups of brush wires (8) corresponding to the conductive copper rings (6) are installed on a side of the brush holder (7) close to the conductive copper rings (6); each group of brush wires (8) is in an eight-shaped structure and is in elastic contact with the front and rear sides of the conductive copper rings (6) respectively.

2. The current-conducting slip ring according to claim 1, wherein, Two fixing rings (4) are rotatably connected to the left and right sides of the outer surface of the rotor (3) via bearings. The stator (1) is sleeved on the outer surfaces of the two fixing rings (4) and fixed by screws. A fixing rod (5) is fixedly connected between the two fixing rings (4).

3. The current-conducting slip ring according to claim 2, wherein, The outer surface of the fixing ring (4) is provided with a mounting groove, and a sealing ring (9) is fixedly connected inside the mounting groove.

4. The current conducting slip ring according to claim 3, characterized in that, A plurality of first conductive wires (10) are fixedly connected to the right side of the stator (1), and the brush wires (8) are electrically connected to the first conductive wires (10).

5. The current conducting slip ring according to claim 4, wherein, A second wire (11) is fixedly connected to the left side of the rotor (3), and the second wire (11) is electrically connected to the conductive copper ring (6).

6. The current-conducting slip ring according to claim 5, characterized in that, The outer surface of the rotor (3) is provided with a plurality of annular grooves (12), and the conductive copper ring (6) is fixedly connected inside the annular grooves (12).

7. The current-conducting slip ring according to claim 6, wherein, The brush filament (8) comprises a circular crimping tube (801) and a conductive wire (802), one end of the conductive wire (802) is fixedly connected to the inside of the circular crimping tube (801), and the circular crimping tube (801) is fixedly connected to the brush holder (7).

Images