Cap type slip ring
By adopting a wireless mandrel and brush module design, the complex production of traditional cap-type slip rings is solved, enabling automated production and assembly, and improving efficiency and consistency.
Patent Information
- Application Number
- CN202520456479.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The production and assembly process of traditional cap-type slip rings is complex and cumbersome, making it difficult to achieve large-scale automated production, wasting manpower and time, and making it difficult to guarantee product consistency.
The design employs a wireless mandrel and brush module to achieve automated production and assembly. The circuit lines are formed through the electroplating ring, and the brush module is combined with the housing and wireless mandrel to achieve a one-to-one correspondence between the brush filaments and the electroplating ring, simplifying the assembly process.
It improves production efficiency, saves labor costs, ensures product consistency, and simplifies the slip ring structure, making it reliable in operation.
Smart Images
Figure CN223927866U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of slip ring, especially a cap type slip ring. BACKGROUND
[0002] Cap type slip ring, because it is like a hat and get the name. Cap type slip ring is widely used in security ball machine, rotating cloud platform, unmanned aerial vehicle and other electromechanical equipment. The rotor core shaft of traditional cap type slip ring adopts wired copper ring core shaft, which must be integrated by injection molding during production. At the same time, the stator brush adopts open mold shell, which must be installed by artificial installation method first, then the brush wire is welded on the brush wire, and finally the welding point is glued to install the outer sleeve. That is, the structure of the traditional cap type slip ring limits the complex production and assembly process, cannot realize large-scale automatic production and assembly, wastes a lot of labor and time, and has low efficiency and is difficult to ensure product consistency. INVENTION CONTENTS
[0003] In order to overcome the defects of the prior art, a cap type slip ring is provided, which adopts wireless core shaft and stator brush module, realizes automatic production and assembly, improves efficiency, saves time and labor cost, and ensures product consistency.
[0004] A cap type slip ring, comprising:
[0005] A wireless core shaft, a plurality of closely arranged electroplated ring channels are arranged on the wireless core shaft, and each electroplated ring channel is provided with an opening leading to the inside of the wireless core shaft; a plurality of counterbores consistent with the number of openings are arranged on one end face of the wireless core shaft, and each counterbore is covered with an electroplated layer and provided with an electroplated passage communicated with the opening through the surface wall of the wireless core shaft;
[0006] Two brush modules, each brush module comprises a PCB board, a brush wire and a wire; a plurality of grooves are symmetrically arranged on both side edges of the PCB board, and a brush wire pad is arranged between each pair of grooves; a wire pad is arranged on the side adjacent to both side edges of the PCB board; the brush wire pad and the wire pad have corresponding circuit passages in communication; the brush wire is installed in the groove and at least a part is welded on the brush wire pad; the wire is welded on the wire pad;
[0007] A shell, the shell comprises an upper half and a lower half which are symmetrical to each other; the wireless core shaft is fixed in the space area surrounded by the upper half and the lower half; two brush modules are fixed on the outer side of the upper half and the lower half respectively; the brush wire corresponds to the electroplated ring channel one by one;
[0008] The sleeve is fixedly sleeved on the rubber shell, encapsulates the brush module inside, and exposes one end surface of the wireless mandrel and part of the wire.
[0009] Preferably, a first boss is arranged between two adjacent electroplating ring channels, and the first boss is higher than the surface of the electroplating ring channel.
[0010] Preferably, a second boss is arranged at each end of the electroplating ring channel, and a bearing is arranged at the second boss.
[0011] Preferably, the wireless mandrel is in the form of a circular ring body and is combined by a left half and a right half.
[0012] Preferably, a positioning hole and a positioning column that match each other are arranged on the left half and the right half.
[0013] Preferably, the electroplating channel is arranged on the end surface of the wireless mandrel and the inner side wall of the wireless mandrel.
[0014] Preferably, the wire pad includes a plurality of wire welding sites corresponding to the wires one by one; the number of the brush wire welding pads is consistent with the number of the wire welding sites, and the brush wire welding pads have a one-to-one corresponding circuit channel with the wire welding sites.
[0015] Preferably, the PCB is a double-layer circuit board.
[0016] Preferably, a perspective window is arranged on the upper half and the lower half.
[0017] The cap type slip ring of the utility model improves the traditional wired mandrel into a wireless mandrel, forms a circuit line through an electroplating ring channel, and connects the electroplating ring channel with the outside through a hole and a counterbore; at the same time, the traditional stator brush is improved into a brush module, which is convenient for automatic welding of brush wires and wires; and based on the assembly relationship among the brush module, the rubber shell and the wireless mandrel, the brush wires can correspond to the electroplating ring channel one by one, and the circuit communication of the PCB, the brush wires, the wires, the electroplating ring channel, the hole and the counterbore is realized.
[0018] Compared with the prior art, the wireless mandrel and the brush module of the cap type slip ring can realize automatic production and assembly, save time and labor cost, and the whole slip ring structure is simple, convenient to assemble, reliable in operation and better in product consistency. BRIEF DESCRIPTION OF DRAWINGS
[0019] Fig. 1 It is a perspective view of the cap type slip ring in the utility model embodiment;
[0020] Fig. 2 It is an exploded view of the cap type slip ring in the utility model embodiment;
[0021] Fig. 3 This is an exploded view of the wireless mandrel in an embodiment of this utility model;
[0022] Fig. 4 This is a perspective view of the brush module in an embodiment of this utility model;
[0023] Fig. 5 This is an enlarged view of the PCB board in the brush module of this utility model embodiment;
[0024] The markings in the accompanying drawings are as follows:
[0025] 1. Wireless spindle; 11. Electroplating ring; 12. Opening; 13. Countersunk hole; 14. Electroplating passage; 15. First boss; 16. Second boss; 17. Bearing; 18. Positioning hole; 19. Positioning post; 2. Brush module; 21. PCB board; 22. Brush bristles; 23. Wire; 24. Groove; 25. Brush bristle pad; 26. Wire pad; 27. Wire soldering position; 3. Housing; 31. Upper half; 32. Lower half; 4. Outer casing; Detailed Implementation
[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] Provide a cap-type slip ring, such as Figs. 1 to 5 As shown, it includes:
[0028] A wireless spindle 1 has multiple closely arranged electroplating channels 11 on it, and each electroplating channel has an opening 12 leading to the interior of the wireless spindle; one end face of the wireless spindle has countersunk holes 13 with the same number of openings, each countersunk hole is covered with an electroplating layer and has an electroplating passage 14 that connects to an opening through the surface wall of the wireless spindle.
[0029] Two brush modules 2, each brush module includes a PCB board 21, brush filaments 22 and wires 23; multiple grooves 24 are symmetrically arranged on both sides of the PCB board, and a brush filament pad 25 is arranged between each pair of grooves; a wire pad 26 is arranged on one side adjacent to the two sides of the PCB board; there is a corresponding connected circuit path between the brush filament pad and the wire pad; the brush filaments are installed in the grooves and at least a portion of them are soldered to the brush filament pads; the wires are soldered to the wire pads.
[0030] The housing 3 includes an upper half 31 and a lower half 32 that are symmetrical to each other; the wireless spindle is fixed in the space area enclosed by the upper half and the lower half; two brush modules are fixed on the outside of the upper half and the lower half respectively; the brush bristles correspond one-to-one with the electroplating ring.
[0031] Outer jacket 4 is fixedly fitted onto the plastic shell, encapsulating the brush module inside and exposing one end face of the wireless spindle and part of the wires.
[0032] The brush assembly is fixed to the housing by dispensing adhesive; the outer sleeve is encapsulated with potting adhesive.
[0033] The mandrel, also known as the rotor, is preferably made of engineering plastic, but is not limited to this material. Each electroplating ring on the wireless mandrel is a loop, and the opening on it serves as the interface end of the current electroplating ring. At the same time, the countersunk hole on the end face of the wireless mandrel serves as an electrical connection port, providing a circuit connection to the outside of the wireless mandrel. There is an electroplating path between the countersunk hole and the opening on the electroplating ring, which is equivalent to a wire. This makes each countersunk hole, electroplating path, electroplating ring, and opening form a one-to-one corresponding and sequentially connected circuit line, replacing the copper ring and wire on the traditional wired mandrel.
[0034] Furthermore, the wireless spindle adopts a ring shape, and the electroplating path is set on the end face of the wireless spindle and the inner surface wall of the spindle, so that the wiring is not exposed on the surface of the spindle.
[0035] Furthermore, a first boss 15 is provided between two adjacent electroplating rings. The first boss is higher than the surface of the electroplating ring, so that the cross-section of each electroplating ring is a continuous V-shape or U-shape. This structure can prevent interference between adjacent electroplating rings and affect the accuracy of data transmission.
[0036] Furthermore, a second boss 16 is provided at each end of the electroplating ring, and a bearing 17 is installed at the second boss. The bearing can assist the spindle to rotate more smoothly, and due to the presence of the second boss, the bearing is isolated from the electroplating ring and will not affect each other.
[0037] Furthermore, the wireless mandrel is circular in shape and is composed of symmetrical left and right halves; that is, the two-half structure facilitates laser scanning activation processing. Specifically, the left and right halves are first laser-activated, then ring channels, passages, openings, and countersunk holes are electroplated onto the left and right halves according to a specified route, and finally the left and right halves are joined together by ultrasonic welding. Preferably, the left and right halves are provided with corresponding matching positioning holes 18 and positioning posts 19. The position and number of positioning holes and positioning posts can be flexibly set to facilitate alignment and positioning of the left and right halves and facilitate welding.
[0038] Furthermore, the grooves on the PCB board are U-shaped, and the PCB board is rectangular. The U-shaped grooves are located on the two longer sides of the PCB board, while the wire pads are located on the shorter sides. Understandably, the specific shapes of the grooves and the PCB board are not limited to these. Preferably, the PCB board is a double-layer circuit board.
[0039] Furthermore, the wire pads include multiple wire soldering positions 27 corresponding one-to-one with the wires; the number of brush pads is the same as the number of wire soldering positions, and each brush pad has a corresponding circuit path. That is, each wire soldering position corresponds to one brush pad, which facilitates the customization of a preset number of circuit paths according to the actual application needs of the slip ring, making the applicability of this slip ring brush module wider. Preferably, the multiple wire soldering positions are arranged sequentially along the edge of the PCB board to meet the needs of automated soldering.
[0040] Furthermore, transparent windows are provided on the upper and lower halves to facilitate observation and inspection of whether the brush filaments correspond one-to-one with the electroplating rings.
[0041] Specifically, the assembly process includes:
[0042] 1) Install the bearings at both ends of the wireless spindle;
[0043] 2) The two brush modules are installed on the upper and lower halves of the housing respectively, and fixed with glue.
[0044] 3) Fix the wireless spindle within the space enclosed by the upper and lower halves of the housing;
[0045] 4) Secure the outer sleeve onto the rubber shell, encapsulate the brush module inside, and seal the outlet with glue to fix it.
[0046] The above is a description of the cap-type slip ring of this utility model, which is used to help understand this utility model; however, the implementation of this utility model is not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the principle of this utility model shall be considered as equivalent substitutions and shall be included within the protection scope of this utility model.
Claims
1. A cap-type slip ring, characterized in that, include: A wireless mandrel has a plurality of closely arranged electroplated channels, each of which has an opening leading to the interior of the wireless mandrel; one end face of the wireless mandrel has countersunk holes of the same number as the openings, each of which is covered with an electroplated layer and has an electroplated passage that communicates with one of the openings through the surface wall of the wireless mandrel. Two brush modules are provided, each brush module including a PCB board, brush filaments, and wires; multiple grooves are symmetrically arranged on both sides of the PCB board, and a brush filament pad is arranged between each pair of grooves; a wire pad is arranged on one side adjacent to the two sides of the PCB board; a corresponding circuit path is provided between the brush filament pad and the wire pad; the brush filaments are installed in the grooves and at least a portion is soldered to the brush filament pad; the wires are soldered to the wire pads. A housing comprising an upper half and a lower half symmetrical to each other; the wireless spindle is fixed within the spatial region enclosed by the upper half and the lower half; The two brush modules are respectively fixed to the outer sides of the upper half and the lower half; the brush filaments correspond one-to-one with the electroplating rings; The outer casing is fixedly fitted onto the rubber shell, encapsulating the brush module inside and exposing one end face of the wireless spindle and part of the wires.
2. The cap-type slip ring as described in claim 1, characterized in that, A first protrusion is provided between two adjacent electroplating rings, and the first protrusion is higher than the surface of the electroplating ring.
3. The cap-type slip ring as described in claim 2, characterized in that, A second boss is provided at each end of the electroplating ring, and a bearing is installed at the second boss.
4. The cap-type slip ring as described in claim 1, characterized in that, The wireless spindle is in the shape of a ring and is composed of a symmetrical left half and a right half.
5. The cap-type slip ring as described in claim 4, characterized in that, The left and right halves are respectively provided with matching positioning holes and positioning posts.
6. The cap-type slip ring as described in claim 1, characterized in that, The electroplating pathway is disposed on the end face of the wireless mandrel and on the inner surface wall of the wireless mandrel.
7. The cap-type slip ring as described in claim 1, characterized in that, The wire pads include multiple wire soldering positions that correspond one-to-one with the wires; the number of brush pads is the same as the number of wire soldering positions, and they have a one-to-one circuit path connected to the wire soldering positions.
8. The cap-type slip ring as described in claim 1, characterized in that, The PCB board is a double-layer circuit board.
9. The cap-type slip ring as described in any one of claims 1 to 8, characterized in that, The upper and lower halves are provided with perspective windows.