Compact conductive slip ring
By adopting an asymmetric stator jacket design in the conductive slip ring, the brush arrangement is simplified, a compact structure of the slip ring is achieved, and the problems of excessive size and complex wiring of existing conductive slip rings are solved, making it suitable for small electrical appliances.
Patent Information
- Application Number
- CN202520516870.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing conductive slip rings have complex brush filament arrangements and large dimensions, making them difficult to adapt to the needs of compact electrical appliances.
The stator jacket adopts an asymmetrical design, with the stator brush holder arranged only on one side of the stator jacket, simplifying the circuit structure. All brush filaments are arranged on the same side of the stator brush holder, reducing wire connections and enabling single-sided wiring.
This design achieves a more compact slip ring structure, simplifies the wiring process, avoids poor electrical contact caused by cable twisting, and is suitable for small electrical appliances.
Smart Images
Figure CN223927867U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of conductive connection, and relates to a movable conductive connection structure, particularly a compact conductive slip ring. Background Technology
[0002] Conductive slip rings establish sliding electrical contact between a rotating shaft and a stationary component, enabling dynamic power and signal transmission and preventing cable tangling. The slip ring achieves electrical contact where the rotor shaft rotates while the brush remains stationary by attaching a brush to a conductive ring on the rotor's central shaft. Traditional slip rings have a stator sleeve clamped on the outer side of the rotor's central shaft, employing a symmetrical double-sided assembly structure. The brushes are typically mounted separately on both sides of the stator sleeve. This structure requires separate stator brush holders for support of the brush filaments on each side of the stator sleeve, and separate wires for output. This complex structure necessitates more internal space for the wires, increasing the slip ring's size. When slip rings are used in small appliances such as curling irons, large slip rings become cumbersome, affecting both aesthetics and usability. Utility Model Content
[0003] This invention addresses the problems of existing conductive slip rings with brush filaments arranged separately on both sides of the stator sleeve, resulting in complex wiring structures, large dimensions, and inflexible use. It provides a compact conductive slip ring with an asymmetrical stator sleeve design, where the stator brush holder supporting the brush filaments is arranged on one side of the stator sleeve. This simplifies the wiring structure, reduces the external size of the slip ring, and makes the slip ring structure more compact, suitable for applications in small electrical appliances.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a compact conductive slip ring, including a rotor shaft, with several independent conductive rings arranged at the ends of the rotor shaft, and a stator sleeve arranged on the outer side of the ends of the rotor shaft. The stator sleeve is composed of a first sleeve body and a second sleeve body assembled together. A stator brush holder is arranged only on the first sleeve body, and several brush filaments corresponding to each conductive ring are arranged on the stator brush holder. A stator wire connected to each brush filament is also connected to the stator brush holder. The rotor shaft is connected to the rotor end cable, and the stator sleeve is connected to the stator segment cable. The stator wire is passed through the stator segment cable. A sliding shell is provided on the outer side of the stator sleeve. The sliding shell is open at one end near the rotor shaft and slidably sleeved on the rotor end cable at the other end.
[0005] In the device, the stator brush holder is separately arranged on the first sleeve main body, all the large-current brush wires, signal brush wires and small-current brush wires are arranged on the same stator brush holder, the second sleeve main body is only used as a fixing clamp, the first sleeve main body and the second sleeve main body are clamped on the outside of the rotor shaft after being spliced, the stator guide can be directly connected from the outer end of the stator brush holder, and the rotor wire is routed from the inside of the rotor shaft, the whole conductive slip ring connection is simple, space is saved, the structure can be more compact, and the device is particularly suitable for small and delicate electric appliances such as curling irons, and the device avoids that the cable is excessively twisted during use of the electric appliance to cause poor electrical contact.
[0006] As preferred, the curvature of the first sleeve main body clamping the rotor shaft is greater than that of the second sleeve main body. The second sleeve main body is only used as a fixing part, and therefore can be smaller, and the open end of the first sleeve main body is spliced and closed.
[0007] As preferred, the inner side of the two ends of the stator sleeve is respectively provided with a bearing, and the two bearings are respectively sleeved on the two ends of the rotor shaft provided with the conductive ring.
[0008] As preferred, the outer side of the spliced side of the first sleeve main body and the second sleeve main body of the stator sleeve is a vertical surface, and the side away from each other of the first sleeve main body and the second sleeve main body is an arc surface, and the shape of the sliding shell is matched with the shape of the stator sleeve. The side away from each other of the first sleeve main body and the second sleeve main body is an outer side, and the outer side of the first sleeve main body is provided with a stator brush holder, and therefore the wiring is arranged in an arch shape, and the spliced side of the first sleeve main body and the second sleeve main body is not provided with a wiring structure, and therefore can be provided as a vertical surface, so that the overall structure is more compact.
[0009] As preferred, the conductive ring comprises at least two wide copper rings for transmitting large current and a plurality of narrow copper rings for transmitting small current and signals.
[0010] As preferred, a plurality of brush wires are arranged on each wide copper ring, and the outer ends of the brush wires corresponding to the same wide copper ring are connected in series through a copper sheet.
[0011] As preferred, the wide copper ring and the narrow copper ring are arranged in pairs.
[0012] As preferred, the conductive ring is a copper ring.
[0013] As preferred, an insulating ring is arranged between adjacent conductive rings.
[0014] As preferred, the rotor end cable is a multi-core cable, the multi-core cable is inserted into the inside of the rotor shaft, and each cable core is connected with each conductive ring in one-to-one correspondence.
[0015] The device is single-sidedly connected, space-saving, and the structure can be more compact, and is particularly suitable for small and delicate electric appliances such as curling irons. BRIEF DESCRIPTION OF DRAWINGS
[0016] The utility model makes further illustration in combination with the drawings.
[0017] Figure 1 It is a whole structure schematic diagram of the utility model.
[0018] Figure 2 It is a split structure schematic diagram of the utility model.
[0019] In the drawing: 1, rotor middle shaft, 2, sliding shell, 3, first jacket main body, 4, second jacket main body, 5, brush wire, 6, copper sheet, 7, wide copper ring, 8, narrow copper ring, 9, first bearing, 10, second bearing, 11, electric capacity, 12, rotor end cable, 13, stator wire. Specific implementation
[0020] The utility model makes further illustration in combination with the drawings.
[0021] Embodiment: a compact conductive slip ring, as shown in Figure 1 , 2 The utility model discloses a compact conductive slip ring, which comprises a rotor middle shaft 1, the end of the rotor middle shaft 1 is provided with a plurality of independent conductive rings, the conductive rings are copper rings, and insulating rings are arranged between the conductive rings. The outer side of the end of the rotor middle shaft 1 is provided with a stator jacket, the stator jacket is composed of a first jacket main body 3 and a second jacket main body 4, a stator brush holder is arranged on the first jacket main body only, a plurality of brush wires 5 corresponding to the conductive rings are arranged on the stator brush holder, and the curvature of the first jacket main body for clamping the rotor middle shaft is greater than that of the second jacket main body. The inner sides of the two ends of the stator jacket are respectively provided with a first bearing 9 and a second bearing 10, and the first bearing 9 and the second bearing 10 are respectively sleeved on the two ends of the section of the rotor middle shaft, on which the conductive rings are arranged.
[0022] The conductive rings comprise at least two wide copper rings 7 for transmitting large current and a plurality of narrow copper rings 8 for transmitting small current and signals. The wide copper rings and the narrow copper rings are arranged in pairs. A plurality of brush wires 5 are arranged corresponding to each wide copper ring 7, and the outer ends of the brush wires corresponding to the same wide copper ring are connected in series through a copper sheet 6.
[0023] The stator brush holder is further connected with stator wires 13 connected with the brush wires respectively, the rotor middle shaft is connected with a rotor end cable 12, the stator jacket is connected with a stator section cable, and the stator wires are arranged in the stator section cable. The outer side of the stator jacket is provided with a sliding shell 2, one end of the sliding shell 2 is open and the other end is sleeved on the rotor end cable 12. The rotor end cable is a multi-core cable, the multi-core cable penetrates into the inside of the rotor middle shaft, and each cable core is connected with each conductive ring one by one.
Claims
1. A compact conductive slip ring, comprising a rotor shaft, the end of the rotor shaft is provided with a plurality of independent conductive rings, the outer side of the end of the rotor shaft is provided with a stator jacket, characterized in that: The stator sleeve is split into a first sleeve body and a second sleeve body, a stator brush holder is arranged on the first sleeve body only, a plurality of brush wires corresponding to each conductive ring are arranged on the stator brush holder, the stator brush holder is further connected with stator wires connected with each brush wire respectively, the rotor central shaft is connected with a rotor end cable, the stator sleeve is connected with a stator segment cable, the stator wires are arranged in the stator segment cable, a sliding shell is arranged on the outside of the stator sleeve, the sliding shell is open at one end of the rotor central shaft and is sleeved on the rotor end cable at the other end.
2. A compact electrically conductive slip ring according to claim 1, characterized in that: The curvature of the first sleeve body for clamping the rotor central shaft is greater than that of the second sleeve body.
3. A compact electrically conductive slip ring as claimed in claim 1, wherein: The inner side of the two ends of the stator sleeve is respectively provided with a bearing, and the two bearings are sleeved on the two ends of the rotor central shaft provided with the conductive ring.
4. A compact electrically conductive slip ring as claimed in claim 1, wherein: The outer side of the mutual split side of the first sleeve body and the second sleeve body of the stator sleeve is a vertical surface, the side away from each other of the first sleeve body and the second sleeve body is an arc surface, and the shape of the sliding shell is matched with the shape of the stator sleeve.
5. A compact electrically conductive slip ring as claimed in claim 1, wherein: The conductive ring includes at least two wide copper rings for transmitting large current and a plurality of narrow copper rings for transmitting small current and signals.
6. A compact conductive slip ring according to claim 5, wherein: Each wide copper ring is correspondingly provided with a plurality of brush wires, and the outer ends of the brush wires corresponding to the same wide copper ring are connected in series through copper sheets.
7. A compact conductive slip ring as claimed in claim 5, wherein: The wide copper ring and the narrow copper ring are arranged in pairs.
8. A compact electrically conductive slip ring as claimed in claim 1, wherein: The conductive ring is a copper ring.
9. A compact electrically conductive slip ring as claimed in claim 1, wherein: An insulating ring is arranged between adjacent conductive rings.
10. A compact electrically conductive slip ring as claimed in claim 1, characterized in that: The rotor end cable is a multi-core cable, the multi-core cable is arranged in the inside of the rotor central shaft, and each cable core is connected with each conductive ring one by one.