Multi-roller sliding contact power supply device
By designing a multi-roller sliding contact power supply device, using copper alloy rollers and spring-driven roller assemblies, the problems of short brush life and large voltage fluctuations were solved, achieving brush durability and power supply stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOLIDWORKGROUPS SHENZHEN CO
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-21
AI Technical Summary
In existing sliding contact power supply devices, the frictional contact between the brush and the copper strip results in a short service life and large voltage fluctuations, making it impossible to maintain the stability of the power supply.
Design a multi-roller sliding contact power supply device, which uses a negative conductive roller and roller assembly made of copper alloy. The two conductive rollers on each brush assembly can swing independently by the force of the spring, ensuring stable contact with the conductive copper strip.
Rolling friction reduces brush wear, significantly extends brush life, and improves the stability of the power supply voltage.
Smart Images

Figure CN224153733U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sliding contact power supply, and in particular to a multi-roller sliding contact power supply device. Background Technology
[0002] Sliding contact power supply is a power supply system that eliminates the need for rigid cable connections. The brushes slide along with the equipment, without cable length constraints, allowing for unlimited equipment operating distance. Existing sliding contact power supply devices typically use a sliding friction type for the brushes and copper bars, and usually only have one brush. In some applications, traditional sliding contact power supply devices suffer from short brush lifespans, large voltage fluctuations, and an inability to maintain stable power supply.
[0003] Therefore, we designed a multi-roller sliding contact power supply device to meet the needs of practical applications. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a thin-walled injection mold that facilitates warpage control.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] Design a multi-roller sliding contact power supply device, including a slide base and a stainless steel track. The slide base is set on the stainless steel track. The slide base includes a negative conductive roller, a copper strip support, an insulating rubber strip, a conductive copper strip, a brush assembly one, and a brush assembly two. The negative conductive roller is rolled on the surface of the stainless steel track. The conductive copper strip is installed on the copper strip support. An insulating rubber strip is installed between the conductive copper strip and the copper strip support. Brush assembly one and brush assembly two are respectively set below the stainless steel track.
[0007] Both the first and second brush assemblies include roller assemblies, which are mounted on nylon insulating blocks. The nylon insulating blocks are mounted on swing rods, and a rotating shaft is provided through the other end of the swing rods. The rotating shaft is rotatably mounted on a slide block.
[0008] In detail, a tension spring is fixed to one end of the swing rod, and a spring hook is installed at the other end of the tension spring, which is mounted on the slide.
[0009] In detail, the roller assembly includes a roller extension block, and conductive roller one and conductive roller two are rotatably disposed on the upper end of the roller extension block.
[0010] In detail, the roller assembly includes a roller base, which is mounted on the end of the swing arm, and a roller extension block is mounted on the roller base.
[0011] In detail, a central shaft is provided through the center of the roller extension block, and the central shaft is in turn through the middle of the roller base.
[0012] In detail, a roller shaft is provided through the interior of the conductive roller, and the roller shaft is provided through one end of the roller extension block. The surface of the roller shaft is provided with an external thread, and one end of the external thread is threadedly connected to a nut.
[0013] In detail, the conductive roller 2 has a roller shaft 2 that runs through its interior, and the roller shaft 2 runs through the other end of the roller extension block. The surface of the roller shaft 2 has an external thread 2, and one end of the external thread 2 is threadedly connected to a nut 2.
[0014] Core function: The stainless steel track is connected to the negative terminal of the power supply. The negative conductive roller rolls on the stainless steel track. The negative conductive roller is made of copper alloy material. The negative conductive roller not only bears the weight of the equipment, but also serves as the negative conductor.
[0015] A tension spring is installed between the spring hook and the swing rod. Through the force of the spring, the swing rod can swing up and down around the pivot.
[0016] Each roller assembly has two conductive rollers made of copper alloy, and each conductive roller can rotate around the central axis of the roller.
[0017] Two conductive rollers are mounted on a roller extension block, which is mounted on a roller base. The roller extension block can swing around a central axis.
[0018] The two rollers on the brush assembly are kept in contact with the conductive copper strip by the force of the spring and the swing of the roller extension block.
[0019] A sliding contact power supply device includes two brush assemblies, each with two conductive rollers. The two brush assemblies can swing independently, so that the four conductive rollers on the sliding contact power supply device simultaneously contact the conductive copper strip.
[0020] The design scheme proposed in this utility model has the following beneficial effects in application:
[0021] 1. The brush that contacts the copper bar is designed as a roller. The roller and the copper bar have rolling friction, which reduces brush wear and significantly increases the service life of the brush.
[0022] 2. By increasing the number of rollers, the contact area between the rollers and the copper strip is increased, making the power supply voltage more stable. Attached Figure Description
[0023] Figure 1 This is an axonometric view of the overall structure of this utility model;
[0024] Figure 2 This is a right-side view of the overall structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the brush assembly structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the roller assembly structure of this utility model;
[0027] Figure 5 This is an exploded view of the roller assembly of this utility model.
[0028] In the diagram: 1. Negative conductive roller; 2. Stainless steel track; 3. Copper strip bracket; 4. Insulating rubber strip; 5. Conductive copper strip; 6. Brush assembly one; 7. Brush assembly two; 8. Spring hook; 9. Tension spring; 10. Roller assembly; 11. Nylon insulating block; 12. Swing rod; 13. Rotating shaft; 14. Roller base; 15. Roller shaft one; 16. Central shaft; 17. Roller shaft two; 18. Conductive roller one; 19. Nut one; 20. Nut two; 21. Conductive roller two; 22. Roller extension block. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] Reference Figures 1-5 A multi-roller sliding contact power supply device includes a slide base and a stainless steel track 2. The slide base is set on the stainless steel track 2. The slide base includes a negative conductive roller 1, a copper strip support 3, an insulating rubber strip 4, a conductive copper strip 5, a first brush assembly 6 and a second brush assembly 7. The negative conductive roller 1 is rolled on the surface of the stainless steel track 2. The conductive copper strip 5 is installed on the copper strip support 3. An insulating rubber strip 4 is installed between the conductive copper strip 5 and the copper strip support 3. The first brush assembly 6 and the second brush assembly 7 are respectively set below the stainless steel track 2.
[0031] Both brush assembly 6 and brush assembly 7 include roller assembly 10. Roller assembly 10 is mounted on nylon insulating block 11, which is mounted on swing arm 12. The other end of swing arm 12 is provided with a rotating shaft 13, which is rotatably mounted on slide.
[0032] It should be further noted that a tension spring 9 is fixed to one end of the swing rod 12, and a spring hook 8 is installed on the other end of the tension spring 9. The spring hook 8 is installed on the slide.
[0033] It should be further noted that the roller assembly 10 includes a roller extension block 22, and a conductive roller 18 and a conductive roller 21 are rotatably disposed on the upper end of the roller extension block 22.
[0034] It should be further noted that the roller assembly 10 includes a roller base 14, which is mounted on the end of the swing arm 12, and the roller extension block 22 is mounted on the roller base 14.
[0035] It should be further noted that a central shaft 16 is provided through the center of the roller extension block 22, and the central shaft 16 is also provided through the middle of the roller base 14.
[0036] It should be further noted that a roller shaft 15 is provided through the interior of the conductive roller 18, and the roller shaft 15 is provided through one end of the roller extension block 22. The surface of the roller shaft 15 is provided with an external thread, and one end of the external thread is threadedly connected to a nut 19.
[0037] It should be further noted that a roller shaft 17 is provided through the interior of the conductive roller 21, and the roller shaft 17 is provided through the other end of the roller extension block 22. The surface of the roller shaft 17 is provided with an external thread 2, and one end of the external thread 2 is threadedly connected to a nut 20.
[0038] Working principle: The stainless steel track is connected to the negative terminal of the power supply. The negative conductive roller rolls on the stainless steel track. The negative conductive roller is made of copper alloy material. The negative conductive roller not only bears the weight of the equipment, but also serves as the negative conductor.
[0039] A tension spring is installed between the spring hook and the swing rod. Through the force of the spring, the swing rod can swing up and down around the pivot.
[0040] Each roller assembly has two conductive rollers made of copper alloy, and each conductive roller can rotate around the central axis of the roller.
[0041] Two conductive rollers are mounted on a roller extension block, which is mounted on a roller base. The roller extension block can swing around a central axis.
[0042] The two rollers on the brush assembly are kept in contact with the conductive copper strip by the force of the spring and the swing of the roller extension block.
[0043] A sliding contact power supply device includes two brush assemblies, each with two conductive rollers. The two brush assemblies can swing independently, so that the four conductive rollers on the sliding contact power supply device simultaneously contact the conductive copper strip.
[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-roller sliding contact power supply device comprising a sliding base, a stainless steel track (2), characterized in that: The slide is mounted on a stainless steel track (2). The slide includes a negative conductive roller (1), a copper strip bracket (3), an insulating rubber strip (4), a conductive copper strip (5), a brush assembly one (6), and a brush assembly two (7). The negative conductive roller (1) is rolled on the surface of the stainless steel track (2). The conductive copper strip (5) is mounted on the copper strip bracket (3). An insulating rubber strip (4) is installed between the conductive copper strip (5) and the copper strip bracket (3). Brush assembly one (6) and brush assembly two (7) are respectively mounted below the stainless steel track (2). Both the first brush assembly (6) and the second brush assembly (7) include a roller assembly (10). The roller assembly (10) is mounted on a nylon insulating block (11), which is mounted on a swing rod (12). The other end of the swing rod (12) is provided with a rotating shaft (13), which is rotatably mounted on a slide.
2. A multi-roller trolley power supply device according to claim 1, characterized in that: One end of the swing rod (12) is fixed with a tension spring (9), and the other end of the tension spring (9) is equipped with a spring hook (8), which is mounted on the slide.
3. A multi-roller trolley power supply device according to claim 2, characterized in that: The roller assembly (10) includes a roller extension block (22), and a conductive roller one (18) and a conductive roller two (21) are rotatably disposed on the upper end of the roller extension block (22).
4. A multi-roller trolley power supply device according to claim 3, characterized in that: The roller assembly (10) includes a roller base (14) mounted on the end of the swing arm (12) and a roller extension block (22) mounted on the roller base (14).
5. A multi-roller trolley power supply device according to claim 4, characterized in that: A central shaft (16) is provided through the center of the roller extension block (22), and the central shaft (16) is also provided through the middle of the roller base (14).
6. A multi-roller trolley power supply device according to claim 5, characterized in that: The conductive roller 1 (18) has a roller shaft 1 (15) running through its interior. The roller shaft 1 (15) runs through one end of the roller extension block (22). The surface of the roller shaft 1 (15) has an external thread 1, and one end of the external thread 1 is threadedly connected to a nut 1 (19).
7. A multi-roller trolley power supply device according to claim 6, characterized in that: The conductive roller 2 (21) has a roller shaft 2 (17) running through its interior. The roller shaft 2 (17) runs through the other end of the roller extension block (22). The surface of the roller shaft 2 (17) has an external thread 2. One end of the external thread 2 is threaded with a nut 2 (20).