TW202201880A - Collector slip-ring structure to provide more areas for electrical connection, and prevent one of which from being disturbed by dust - Google Patents

Abstract

A collector slip-ring comprises a rotor module and a brush module. The brush module has a plurality of brush units arranged at intervals, and each brush unit has a fixed section and two free sections extending from two opposite ends of the fixed section, each of the free sections extends from one end away from the fixed section to form a plurality of brush filaments, the brush filaments have a straight contact area that is electrically connected to the rotor module. In this way, a plurality of brush filaments can provide more areas for electrical connection, and can prevent one of which from being disturbed by dust and causing signal interruption, and therefore prolong the service life of the brush structure.

Description

collector slip ring structure

The invention relates to a collector slip ring structure. The brush unit of the collector slip ring has a free end bifurcated to form a plurality of brush wires, which can reduce the chance of needle skipping when the slip ring bounces.

The combination of the slip ring and the brush can be used in a circuit system that requires continuous rotation and transmission of power and/or electronic signals to avoid spraining of the wires during rotation. Since the brushes must be in constant contact with the metal ring to ensure the transmission of power and/or electrical signals, their strength must be maintained at a certain level. In addition, if a metal wire is used as a brush, due to its light contact pressure, easy wear, and needle skipping, it will lead to unstable transmission signal output and other phenomena.

The present invention provides a collector slip ring structure, comprising a rotor module and a brush module, characterized in that the brush module has a plurality of brush units arranged at intervals, and each of the brush units has a fixed A segment and two free segments extend from opposite ends of the fixed segment, each of the free segments extends from one end away from the fixed segment to form a plurality of brush wires, and the brush wires have a straight contact area to electrically connect the Rotor module. Thereby, a plurality of brush wires can provide more areas of electrical connection, avoid the situation that one of the brush wires is interrupted by dust interference, and prolong the service life of the brush structure.

Further, the rotor module is a plurality of metal slip rings and a plurality of insulating rings alternately sleeved along a virtual axis, according to which, the width of the metal slip rings or the insulating rings can be fine-tuned at the same time or separately, and the corresponding requirements can be prepared. The collector slip ring structure makes the process more flexible.

In order to clearly illustrate the specific embodiments, structures and effects of the present invention, the following descriptions are provided in conjunction with the illustrations:

Please refer to FIG. 1 to FIG. 4 , which illustrate the correspondence between the components of the collector slip ring. The collector slip ring 100 includes a brush module 20 and a rotor module 40 , and the brush module 20 is divided into two upper and lower parts. The brush modules 20 on both sides are assembled to the rotor module 40 respectively.

The brush module 20 includes a plurality of brush units 10 arranged at intervals, and the base 18 enables the plurality of brush units 10 to be positioned. The brush unit 10 is approximately ㄇ-shaped and has a fixed section 11 and two free sections 13 extending from opposite ends of the fixed section 11 , and a rounded corner 12 is formed between the fixed section 11 and the two free sections 13 . The base 18 covers at least two opposite ends of the fixed section 11 of the brush unit 10 , and exposes the fixed section 11 of the brush unit 10 and the two folded corners 12 between the two free sections 13 . Further, the base 18 exposes the brush unit 10 The middle part of the fixing section 11 is used to electrically connect the wires 30 respectively, so that the wires 30 are also on the same plane. Therefore, the wires 30 are more easily stacked on one side of the base and the overall size is reduced. The base 18 can make the brush units 10 spaced at the same or different distances to correspond to the position of the metal slip ring 42 of the rotor module 40 , and the base 18 can maintain the stress of the brush units 10 when the corners 12 are exposed.

The rotor module 40 includes a plurality of insulating rings 41 and a plurality of metal slip rings 42 that are alternately sleeved along a virtual axis. The inside of the metal slip rings 42 are also electrically connected to wires 45 individually, and the plurality of wires 45 are concentrated in the rotor module. One end of the group 40 extends to the outside of the rotor module 40 , and the wire 45 is embedded and formed through the insert to simultaneously locate the insulating ring 41 and the metal slip ring 42 , and simultaneously form the axis 50 of the rotor module 40 .

Therefore, the insulating rings 41 are used to define the positions of the metal slip rings 42, so that each brush unit 10 in the brush module 20 can be correspondingly installed on a metal slip ring 42, so that the The brush wire 15 contacts the metal slip ring 42 . In addition, by minimizing the width of the insulating ring 41 , maximizing the width of the metal slip ring 42 and increasing the width of the brush wire 15 , the contact chance of the metal slip ring 42 and the brush wire 15 can also be increased. In addition, the width of the metal slip ring 42 can also be fine-tuned to improve the resistance of the metal slip ring 42 to voltage or current. The configuration of the rotor module 40 can further fine-tune the width of the metal slip rings 42 and the distance between the metal slip rings 42 , and then bury the injection for positioning, making the process more flexible.

In this embodiment, each free segment 13 of the brush unit 10 extends straight outward from one end of the fixed segment 11 , and branches from the middle part of the free segment 13 to form two brush wires 15 . The end is provided with a bending foot 16 facing outward (away from the metal slip ring), according to which, the bending angle 12 and the bending foot 16 can provide appropriate stress to make the free section 13 face the slip ring.

Further description, each free section 13 of the brush unit 10 has a connecting portion 14 at one end to connect with the corner 12, and two brush wires 15 are formed by extending from the other end of the connecting portion 14, and each brush wire 15 has a straight line. The part is defined as the suspended area 151 is adjacent to the connecting part 14 , and the contact area 152 is adjacent to the bending leg 16 . Accordingly, the connecting portion 14 of the free section 13 can provide appropriate stress, so that the contact area 152 of the brush wire 15 can have an appropriate elastic force, so as to maintain the state of contacting the metal slip ring 42 and reduce stitch skipping. In addition, the contact areas 152 of the two brush wires 15 are individually contacted with a metal slip ring 42, which can provide more areas for electrical connection, avoid the situation that one of the contact areas 152 is interrupted by dust interference, and can also In order to prolong the service life of the brush unit 10 , on the premise of maintaining the electrical connection, one connection portion 14 can also be branched to form more than three brush wires 15 .

In this embodiment, the length L of the connection portion 14 of the free section 13, the suspended area 151 of the brush wire 15, and the contact area 152 of the brush wire 15 are substantially the same, however, the connection portion 14 and the brush wire have substantially the same length L. The length ratio of 15 can be between 2:3 to 1:4 (ie, 1:1.5 to 1:4), and the length ratio of the suspended area 151 of the brush wire 15 to the contact area 152 of the brush wire 15 is between 5 :4 to 5:6 (ie, 1:0.8 to 1:1.2), a similar stress can also be maintained to make the brush wire 15 adhere to the slip ring.

In this embodiment, the fixed section 11 and the free section 13 of the brush unit 10 are flat plates with a slightly uniform thickness, and the width of the connecting portion 14 of the free section 13 is wider, which can be used when the bending degree of the folded corner 12 is small. To maintain proper tension, the free end 13 is not easily deformed when the metal slip ring is running. The brush wire 15 also has a flat shape and has a smaller width than the connecting portion 14 to improve its mechanical properties. The flat brush wire 15 can also be in linear contact with the metal slip ring 42 to increase the contact area. . However, the desired mechanical properties can also be obtained by adjusting the width of the brush wire 15 or making the cross-section of the brush wire approximately circular.

Through the above-mentioned structural arrangement of the brush module 20 and the rotor module 40 , the structures of the brush unit 10 and the metal slip ring 42 can be adjusted correspondingly according to the position or stress, so that the collector slip ring 100 has the advantage of customization.

Please refer to FIG. 5 , which is a schematic diagram of the assembly of the collector slip ring. The middle section (about half of the length L of the contact area 152 ) of the contact area 152 of the brush wire 15 of the brush unit 10 is the actual contact with the metal slip ring 42 The contact area 152 can be adjusted by adjusting the bending degree of the bending angle 12 and the bending foot 16, the width of the connecting part 14 of the free section 13 or the brush wire 15, and the total length of the brush wire 15, to maintain the corresponding The stress and contact area 152 are more suitable for use.

10: Brush unit 11: Fixed segment 12: Folded corners 13: Free segment 14: Connection part 15: Brush wire 151: Suspended area 152: Contact area 16: Bending feet 18: Pedestal 20: Brush module 21,22: Shell 30,45: Wire 40: Rotor module 41: Insulation ring 42: Metal slip ring 50: Axis 100: collector slip ring

Figure 1 is an exploded view of the components of the collector slip ring.

FIG. 2 is a schematic diagram of the structure of the brush unit.

FIG. 3 is a schematic structural diagram of a rotor module.

Figure 4 is a schematic diagram of the assembly of the collector slip ring.

FIG. 5 is a schematic cross-sectional view of a collector slip ring.

10: Brush unit

11: Fixed segment

12: Folded corners

18: Pedestal

20: Brush module

21,22: Shell

30,45: Wire

40: Rotor module

41: Insulation ring

42: Metal slip ring

50: Axis

100: collector slip ring

Claims (9)

A collector slip ring structure includes a rotor module and a brush module, characterized in that the brush module has a plurality of brush units arranged at intervals, and each of the brush units has a fixed section and two The free section extends from opposite ends of the fixed section, and each of the free sections extends from one end away from the fixed section to form a plurality of brush wires, and the brush wires have a straight contact area to electrically connect the rotor module . The collector slip ring structure according to claim 1, wherein the rotor module has a plurality of metal slip rings and a plurality of insulating rings alternately sleeved along a virtual axis. The collector slip ring structure according to claim 2, wherein the separation distance of the brush units corresponds to the separation distance of the metal slip rings. The collector slip ring structure as claimed in claim 1, wherein one end of the brush wire is provided with an outwardly bent leg. The collector slip ring structure as claimed in claim 1, wherein each of the free segments has a connection portion and the brush wires are formed by extending from the connection portion, and the connection portion and the connection portion of the brush wires are formed. The length ratio is between 1:1.5 and 1:4. The collector slip ring structure as claimed in claim 1, wherein the brush wire has a straight suspended area and the contact area, and the length ratio of the suspended area to the contact area is between 1:0.8 and 1:1.2 . The collector slip ring structure according to claim 1, wherein the brush module has a base for positioning the brush units in a spaced arrangement, and the base covers at least two opposite ends of the fixed section of the brush units , the fixed section of the brush units and the two folded corners between the two free sections are exposed. According to the collector slip ring structure of claim 7, the base exposes the middle part of the fixed section of the brush units. The collector slip ring structure according to any one of claims 1 to 8, wherein the brush units are plate-shaped.

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