2996results about "Rotary current collector" patented technology

A system includes a first electrical connector configured to removably couple with a second electrical connector. The first electrical connector includes a housing having an axial opening. The first connector also includes a movable support disposed inside the housing. The movable support includes a first connector portion having a first electrical path with a first radial contact electrically coupled to a first axial contact. The first electrical connector also includes a stationary support disposed inside the housing. The stationary support includes a first mating connector portion having a first mating electrical path with a first mating axial contact coupled to a first electrical cable. The first electrical connector also includes a shuttle pin configured to engage with the second electrical connector through the axial opening in the housing. The shuttle pin is configured to move along a first axial path of travel in a first connection stage. The movable support is configured to move along a second axial path of travel in a second connection stage. The first connection stage is configured to engage the first radial contact of the first electrical connector with a first mating radial contact of the second electrical connector at a first axial position in response to the first axial path of travel. The second connection stage is configured to engage the first axial contact with the first mating axial contact over a first axial distance in response to the second axial path of travel.

The invention relates to a current transformer (1) for transmitting current to the rotor of an electric machine, comprising a rotor module (11) which is at least partially rotationally symmetrical about an axis of rotation (DA), wherein the rotor module (11) has at least two rotor grinding wheels (12a, 12b) which are designed in an annular shape and a stator module (13), wherein the stator module (13) has at least two counter grinding wheels (14a, 14b) which are designed in an annular shape, wherein the central axes of the counter grinding wheels (14a, 14b) are coaxial to each other and to the axis of rotation (DA) and the mean diameter of a first counter grinding wheel (14a) corresponds to the mean diameter of the first rotor grinding wheel (12a) and the mean diameter of a second counter grinding wheel (14b) corresponds to the mean diameter of the second rotor grinding wheel (12b).The stator module (13) comprises at least one actuating element (15) which presses the counter grinding wheels (14a, 14b) at least temporarily in the direction of the axis of rotation (DA) against the rotor grinding wheels (12a, 12b). The invention further relates to an electric machine and a method for adjusting a current transformer (1) during the operation of an electric machine.

The invention relates to a separately excited electric machine (FEM) for a traction drive (TA) of an at least partially electrically powered motor vehicle (KFZ), comprising a rotor shaft (RW) of a rotor (RO) to which a shaft end section (WEA) adjoins, wherein the shaft end section (WEA) has a first opening (EO) and a second opening (ZO) spaced apart from the first opening (EO) in an axial direction of the rotor (RO), a potting body (VK) arranged in the shaft end section (WEA) in which an electrically conductive connecting element (VE) is embedded at least partially, wherein the connecting element (VE) has a distal first end (DEE) and a distal second end (DZE), and the distal second end (DZE) can be guided through the second opening (ZO).a slip ring module (SRM) arranged on a distal end section DE of the shaft end section (WEA) with a slip ring (SR) and a connecting section (VA) arranged on the slip ring (SR), which is electrically conductively connected to the distal first end (DEE) of the connecting element (VE), and a bearing device (LE) which sits on an outer lateral surface (AM) of the shaft end section (WEA).

The utility model discloses a conductive slip ring, which relates to the technical field of disc slip rings and comprises a stator shell and a rotor shell rotating relative to the stator shell, the stator shell comprises a base, the base is formed by extending towards one end and is internally provided with a multi-stage step-shaped table top, and the side wall of the table top is provided with a mounting groove. The side, facing the stator shell, of the rotor shell is provided with a matching piece matched with the base in an extending mode, an annular reed is arranged on a table top in the base and fixes the annular reed through the matching piece, the rotor shell is further provided with an annular groove, a copper sheet is arranged in the annular groove and fixed to the stator shell, a clamping plate is assembled at the position of the installation groove in a clamped mode, and a connecting plate is arranged at the position of the installation groove in a clamped mode. The rotor shell rotates relative to the stator shell, an annular reed is arranged between the rotor shell and the stator shell, the annular reed is provided with a binding post and faces the rotor shell, a connecting plate is assembled on a base of the stator shell through a clamping plate, and a wiring structure of the connecting plate and the binding post of the annular reed are oppositely arranged, so that it is guaranteed that electrification is not affected when the rotor shell rotates; and the structure is more reasonable.

A retractable slip ring transmission mechanism is disclosed, including a housing, a connecting wire, a telescopic component, and a transmitting component. The connecting wire is wrapped around the telescopic component, and the telescopic component is rotatably provided in the housing. The telescopic component includes a first fixed part, an elastic part and a second fixed part. The second fixed part is provided with a holding compartment on one side for placing the elastic part, and the holding compartment is provided with an opening. One end of the elastic part is provided on the outside of the holding compartment, and the other end of the elastic part is coiled within the holding compartment through the opening. Through improvement of the transmitting component, the structure is optimized, which not only can reduce the production process and lower the production cost, but also can increase the power transmission of the product.

Disclosed in the present application are a rotating conductive structure, a handle and a hairdressing device. The rotating conductive structure has an axis of rotation and includes an insulating member, a conductive rotating member and a conductive fixed member. The conductive rotating member includes a first rotating portion and a second rotating portion; the conductive fixed member includes a first fixed portion and a second fixed portion, the first fixed portion is in contact with the first rotating portion, the second fixed portion is in contact with the second rotating portion; the insulating member is configured to isolate the first rotating portion from the second rotating portion; and a current passes through the first fixed portion, the first rotating portion, the hairdressing assembly, the second rotating portion and the second fixed portion in sequence to form a series circuit with a power source.

The invention relates to the technical field of carbon brush on-line monitoring, in particular to an on-line monitoring carbon brush and a carbon brush on-line monitoring system.The on-line monitoring carbon brush comprises an on-line monitoring carbon brush body and further comprises a temperature collecting module, an on-line monitoring module and an on-line monitoring module, the contact acquisition module is used for acquiring the contact force of the carbon brush; the data transmission module is used for transmitting data; and the interaction module is used for displaying the temperature information acquired by the temperature acquisition module and the contact force acquired by the contact acquisition module in a data form for the operation and maintenance personnel to call, and judging whether to give an alarm to the operation and maintenance personnel according to the temperature information acquired by the temperature acquisition module and the contact force information acquired by the contact acquisition module. When parameters such as the temperature, the contact condition and the abrasion condition of the carbon brush are monitored to reach a user-defined warning limit, an alarm prompt is given, so that a user can know that the operation of the carbon brush is abnormal in time, and when the carbon brush is normally operated and the temperature is normal, people do not need to supervise the carbon brush constantly, and the labor cost is saved.

A pedal includes a pedal body, a force detection module, a rotation shaft, an insulating sleeve, electrically conductive rings, and contact elements. The pedal body has a first accommodating space and a second accommodating space. The force detection module is disposed in the first accommodating space. The rotation shaft passes through the pedal body. Annular accommodating regions and wire perforations are recessed from a surface of the rotation shaft. Transmission wires pass through the wire perforations. The insulating sleeve is sleeved on the rotation shaft. Annular insulating regions are recessed from a surface of the insulating sleeve and correspondingly cover the annular accommodating regions. The electrically conductive rings are respectively sleeved on surfaces of the annular insulating regions, and the transmission wires are correspondingly coupled to the electrically conductive rings. The contact elements abut against the electrically conductive rings, respectively.

According to the generator regulator carbon brush holder convenient to clean, the annular scrap collecting groove body is formed in the bottom of the cylinder part, the annular scrap collecting groove body is located on the outer side of a slip ring of a generator rotor after installation, and when a generator works, the generator rotor rotates at a high speed, so that the slip ring on the generator rotor makes contact friction with a carbon brush; after a long time, carbon powder generated by abrasion of the carbon brush is scattered into the inner cavity of the annular scrap collecting groove body through the centrifugal force of rotation of the slip ring of the generator rotor, so that the carbon powder is prevented from being accumulated or adhered to the generator and other electrical elements or a bearing chamber, and normal operation of the generator is guaranteed. A cleaning banister brush is rotationally arranged on the annular scrap collecting groove body, and a tiny gap is formed between the cleaning banister brush and the generator rotor slip ring, so that after carbon powder generated by abrasion of a carbon brush adheres to the outer surface of the slip ring, the size of the outer surface of the slip ring is increased, and the slip ring makes contact with the cleaning banister brush; and therefore, the cleaning banister brush can clean the carbon powder adhered to the outer surface of the slip ring.

The invention discloses a grounding device for a driving shaft of a motor. The grounding device comprises a motor shell and the driving shaft, the rubber pad is arranged at the top of the motor shell; the grounding assembly is arranged at the top of the rubber pad and comprises a conductive part, a pressurizing part is arranged in the conductive part, a second dismounting part is arranged in the conductive part, when the driving shaft rotates, the conductive outer ring and the conductive inner ring are driven to rotate, and the conductive block is limited by the L-shaped conductive plate and the conductive rod and cannot rotate; a conductive block is in contact with a conductive inner ring to form closing of a conductive circuit, meanwhile, a first spring pulls a conductive piece leftwards, and then a conductive rod and an L-shaped conductive plate are pulled, so that the conductive block makes contact with the inner wall of the conductive inner ring all the time, and even if abrasion is generated between the conductive block and the conductive inner ring, the conductive circuit is closed. And the conductive block can still move in a first spring pulling mode, and it is guaranteed that the conductive block makes contact with the inner wall of the conductive inner ring all the time.

The invention relates to a bypass device (1), an electrically conductive bypass conductor (3), and a first machine element (12), wherein the bypass conductor (3) is in contact with the first machine element (12), the first machine element being contacted by the bypass conductor (3) at a contact surface (K), and the contact surface (K) comprising a layer system (3) electroplated onto the first machine element (11), wherein the layer system (3) optionally comprises a first layer (3a) arranged on the first machine element (11) and at least one second layer (3b) arranged on the first machine element (11) or, if present, on the first layer (3a), wherein the optional first layer (3a) is formed of copper or nickel, and the at least one second layer (3b) is formed of an alloy comprising at least two of the elements tin, copper, nickel, silver, zinc, bismuth, antimony, cobalt, manganese, and tungsten.where the alloy contains non-metallic particles, including a comprehensive number of electrically conductive particles.

The invention relates to a rotary connector, in particular to a rolling type rotary connector which comprises a supporting frame, a rotary shaft rotationally arranged in the supporting frame and a contact assembly arranged between the supporting frame and the rotary shaft. The contact assembly comprises an outer insulating ring arranged on the inner wall of the supporting frame, an outer conducting ring arranged on the inner wall of the outer insulating ring, an inner insulating ring arranged on the outer wall of the rotating shaft and an inner conducting ring arranged on the outer wall of the inner insulating ring, and an elastic ring is nested between the inner wall of the outer conducting ring and the outer wall of the inner conducting ring; and a hole for increasing the elasticity of the elastic ring is formed in the wall body of the elastic ring. The plurality of holes are distributed on the wall body of the elastic ring in the rolling type rotary connector, so that the elasticity of the elastic ring can be increased, the processing difficulty can be reduced, and the contact stability of the elastic ring and the inner and outer conducting rings can be improved on the premise of not changing the wall thickness of the elastic ring.

To ensure a stable conductive path with higher conductivity.SOLUTION: A brush unit 20 abuts against an axial conductive portion 10 provided on a rotating shaft 2 to electrically connect a housing 4 and the axial conductive portion 10. The brush unit 20 includes: a holder 21; a brush 22 abutting against the axial conductive portion 10 through a first opening H21a provided in the holder 21; a spring 23; a cylindrical sleeve 24 that holds the brush 22; an electrode 25; and a wiring 26 that connects the brush 22 and the electrode 25. The electrode 25 is sandwiched between a second protruding portion 21b of the holder 21 and the sleeve 24.SELECTED DRAWING: Figure 1

A rotating brush assembly for an electric motor, including a commutator and a plurality of brushes, each of the brushes rotatingly mounted on an axle disposed between arms coupled to respective first and second brush holders, wherein the brush holders are urged toward said commutator with a spring, and wherein the brushes rotate in a direction opposite the direction in which the commutator rotates.

The utility model discloses a shaft current conductive brush device and a motor. According to the utility model, the shaft current conductive brush device comprises a ring body, at least one end face of the ring body is provided with a plurality of mounting grooves arranged along the circumferential direction, and each mounting groove is provided with a first opening located on the end face of at least one side of the ring body, and a plurality of electrostatic charge clearing assemblies, the electrostatic charge removing assemblies are installed in the installation grooves along the first openings, the conductive fibers of the electrostatic charge removing assemblies extend in the radial direction towards the area formed by surrounding of the ring body, and at least part of the conductive fibers extend into the area formed by surrounding of the ring body. Compared with the prior art, the production efficiency is high, and the manufacturing process is simple.

An electrically conductive assembly prevents current flow through the raceways of a bearing rotatably coupling a shaft with an outer member, such that the shaft or outer member is rotatable about a central axis, the outer member having an exterior mounting surface spaced radially outwardly from the bore. The conductive assembly includes an annular base plate formed of a conductive material and having a main body entirely encircling the centerline and two or more integral mounting lugs extending radially outwardly from the main body and connectable with the mounting surface of the outer member to secure the conductive assembly to the outer member. An annular inner conductor is connected with the base plate and has an inner radial end engageable with the shaft such that an electrically conductive path extends between the shaft and the outer member through the inner conductor and the base plate.

The invention discloses an anti-interference system for a slip ring communication technology, and belongs to the technical field of communication. Aiming at the problems of electromagnetic interference, mechanical vibration and unstable contact of monocrystalline silicon furnace equipment, a collaborative solution is provided. The system comprises a conductive slip ring assembly, a dynamic shielding module, an asymmetric differential transmission module, an intelligent filtering module, an environment sensing module and a contact impedance compensation module, and real-time cooperative control is realized through a bus controller. The dynamic shielding module adopts a liquid metal micro-channel layer and a piezoelectric driving layer, the shielding density is dynamically reconstructed according to the electromagnetic interference frequency band and the vibration intensity, and broadband noise is suppressed; the asymmetric differential transmission eliminates common-mode interference through dynamic phase compensation; the intelligent filtering module adaptively adjusts parameters of a band elimination filter based on a deep learning model, and accurately suppresses time-varying interference; the carbon nanotube composite electric brush stabilizes contact impedance through a pressure feedback mechanism. The system is obviously superior to a traditional static shielding and fixed filtering scheme, and reliable communication requirements are guaranteed.

Presented are separately excited motor (SEM) drive systems, methods for making / using such systems, and vehicles equipped with such systems. A motor drive system includes a rechargeable battery unit and a multilevel power factor correction (PFC) device interposed between and electrically connecting the battery unit and an electric power source. The battery unit and PFC device are electrically connected via a traction inverter module (TIM) device and a multilevel power transfer circuit (PTC) device. The TIM contains multiple pairs of TIM switches, and the PTC device contains multiple PTC switches. An SEM unit contains a rotor assembly, which includes a rotor core bearing a rotor winding, and a stator assembly, which includes a stator core bearing multiple stator windings electromagnetically paired with the rotor winding. Each stator winding is electrically connected to a respective pair of TIM switches, whereas the rotor winding is electrically connected to the PTC switches.

The invention discloses a power supply system of a brush holder on-line monitoring device. The power supply system comprises an electrical connecting piece, a first contact, a third contact and a second contact, the two electric connecting pieces are arranged on the bottom surface of the brush holder, one end of each electric connecting piece is connected with a power supply interface on a conductive ring of the brush holder, the other end of each electric connecting piece is connected with two first contacts, the first contacts penetrate through the brush holder, the corresponding connecting ends of the first contacts extend out of the top surface of the brush holder, and each first contact is provided with a telescopic structure; the two second contacts are arranged on the brush holder, the two third contacts are arranged on the brush holder, the third contacts are respectively connected with the two second contacts through conductive structures, and the brush holder on-line monitoring device is arranged in a handle of the brush holder and is electrically connected with the third contacts; and when the brush holder is inserted and fixed on the brush seat, the two first contacts are respectively connected with the two third contacts through the telescopic structure in a propping manner. Through the structural arrangement of the application, the on-off of the power supply of the on-line monitoring device is synchronized with the plugging of the brush holder, no additional action is needed, the risk of misoperation is reduced, and the workload is reduced.

The invention discloses a motor brush material for intelligent household appliances and a preparation method thereof, and the preparation method comprises the following steps: mixing matrix graphite powder with a composite binder to prepare mixed particles, and crushing, screening and mixing to prepare brush matrix powder; the method comprises the following steps: preparing powder into a brush green body through compression molding, roasting the green body under the protection of a combined atmosphere of nitrogen and hydrogen to prepare a brush cooked body with a porous structure, and carrying out negative pressure dipping treatment on the brush cooked body to prepare the brush material. The prepared electric brush material has the advantages of being long in service life, good in reversing performance, low in spark grade, low in noise, capable of reducing heating during motor operation, capable of improving energy efficiency and the like.

A contact unit (1) is provided for contacting a shaft (2) of an electric machine (10) having a housing (3). The contact unit (1) comprises an elongated, metallic or non-metallic base body (5) having a bore (7) and designed for insertion into a holder (4) of the housing (3), wherein the longitudinal axis (A5) of the base body (5) coincides with the central axis of the bore (7). A conductor strip (6) is drawn through the bore (7) such that contact sections (8, 9, 11), namely at least one housing-side contact section (8, 9) and one shaft-side contact section (11), are formed by the conductor strip (6) on both sides of the bore (7), which project beyond the base body (5) in its longitudinal direction.

An electrically conductive assembly prevents current flow through the raceways of a bearing and includes a conductive base plate having a centerline and including an annular main body with an inner and outer radial ends. One or more mounting lugs extend radially outwardly from the outer radial end of the main body and are connectable with the exterior surface of an outer member to secure the conductive assembly to the outer member at a position spaced axially from the bearing. The main body may be flat and include one or more stiffening flanges extending axially from and at least partially circumferentially about the inner perimeter of the main body and / or the outer perimeter of the main body and / or the outer perimeter of the mounting lugs. Alternatively, the main body is formed as a circular hub having a bore for receiving the conductor and each mounting lug includes two stiffening ribs.

The invention relates to a shaft grounding device (1) for dissipating an electrical charge and / or voltage from a shaft (4), in particular for a drive train (2) of an electrically operated motor vehicle (3), comprising a rotatably mounted shaft (4) into which a cavity (7) extends axially from an end face (6) having a shaft opening (5), and a first, rotationally fixed and electrically conductive sleeve (8) passes through the shaft opening (5) and extends axially into the cavity (7) of the shaft (4), wherein an electrically conductive retaining element (9) is mounted in or on a receptacle (50) of the rotatable shaft (4) in the cavity (7), from which an electrically conductive centering means (10) extends coaxially into the sleeve (8) in the axial direction or surrounds the sleeve (8) from the outside.wherein an electrically conductive bearing (12) is arranged in the axial overlap area (11) of the retaining element (9) and the receptacle (50), so that during operation of the shaft grounding (1) an electrical contact is established between the receptacle (50) and the retaining element (9).

The present application discloses a conductive slip ring and a semiconductor process device. The disclosed conductive slip ring is applied to a process chamber of the semiconductor process device. The conductive slip ring comprises a housing, a fixed electrical connection part, and a rotating electrical connection part. The housing is provided with a housing cavity and a first mounting hole in communication with the housing cavity, and the housing is used to be sealingly connected to the process chamber, so that the housing cavity is in sealed communication with a chamber space of the process chamber. The fixed electrical connection part is in sealing fit with the first mounting hole, a first end portion of the fixed electrical connection part extends into the housing cavity and is relatively rotatably electrically connected to the rotating electrical connection part, and a second end portion of the fixed electrical connection part is located outside of the housing and is used to be electrically connected to a power supply. The rotating electrical connection part is rotatably disposed in the housing and is used to be electrically connected to an electrical device in the process chamber. According to the solution, the problem in the related art of a poor sealing effect due to use of a magnetic fluid structure in a process chamber for implementing sealing between the process chamber and the external environment of the process chamber can be solved.

The utility model discloses a high-rotating-speed precise conductive slip ring based on thermoelectric refrigeration, which is characterized in that a detachable outer cover is arranged on a high-rotating-speed tight slip ring bracket, and a thermoelectric refrigerating unit and radiating fins are arranged between the high-rotating-speed tight slip ring bracket and the outer cover; a shaft is arranged in the high-rotating-speed tight slip ring support, and a friction pair is arranged on the shaft and located in the cooling cavity. The small end of the shaft is in supporting fit with the high-rotating-speed tight slip ring bracket through a small-end bearing; the large end of the shaft is in supporting fit with the high-rotating-speed tight slip ring bracket through a large-end bearing; an end cover of the small-end bearing is fixedly connected with the chuck cover, the chuck cover is detachably connected with the outer cover, and the large-end bearing is fixedly connected with the large-end bearing cover; and a compressed air flow channel is arranged on the chuck cover. The closed cooling cavity is adopted, so that the friction pair has dustproof and waterproof performance, near-end refrigeration temperature control is achieved, peripheral pipeline layout is reduced, and the radial size is reduced.

The utility model relates to a rotary combination device which comprises an electric slip ring and a joint body. The joint rotor part is provided with a rotor shaft hole and a first annular groove, the joint rotor part is provided with a first connector and a first bearing, the end, away from an opening, of the first annular groove is provided with a first radio frequency coaxial connector, and the first connector is connected with the first radio frequency coaxial connector through a coaxial line. The joint rotor part is rotatably connected with the joint stator part through a first bearing; the joint stator part is provided with a stator shaft hole and a second annular groove, the first bearing, the rotor shaft hole, the first annular groove, the stator shaft hole and the second annular groove are coaxially arranged, the rotor shaft hole and the stator shaft hole are oppositely arranged and communicated, and the opening ends of the first annular groove and the second annular groove are oppositely arranged and communicated. A second connector is arranged on the side wall of the second annular groove and penetrates out of the joint stator part. Compared with an existing rotating structure, the rotating structure can transmit radio frequency microwave signals and electric energy of different powers at the same time, and the transmission requirement is met.

The microscope objective lens recognition device is arranged on an objective lens converter of a microscope, the objective lens converter comprises a converter rotating plate rotationally connected with an objective lens converter mounting frame on the microscope, and an objective lens mounting hole used for mounting an objective lens is formed in the converter rotating plate. Each objective lens mounting hole is provided with a first objective lens magnification recognition mechanism used for detecting magnification of a mounted objective lens, and the objective lens converter mounting frame is provided with a second objective lens magnification recognition mechanism used for being matched with the converter rotating plate to recognize the objective lens entering the microscope detection light path. According to the invention, the first objective magnification recognition mechanism is arranged to directly detect and recognize the objective magnification, and the second objective magnification recognition mechanism is used to associate the objective mounting hole and the objective magnification correspondingly mounted, so that the objective switching can be quickly carried out after the recognition is completed, and the complexity of the control logic is reduced.

The utility model discloses a commutator pressing position finding device. The device is arranged on a rack, a rotating disc assembly is rotationally arranged on the rack, the rotating disc assembly comprises a rotating disc body and a plurality of explorators which are arranged on the peripheral side of the rotating disc body and used for magnetically attracting rotors, and a commutator downward-pressing position finding device is arranged to be in butt joint with the moving paths of the explorators; the device comprises a mounting seat, a positioning mechanism and a rotary pressing mechanism, the positioning mechanism is arranged on the mounting seat, is parallel to the explorator, and is used for being matched with the explorator to fix the rotor; and the rotary pressing mechanism is connected to the mounting seat, is relatively arranged above the explorator, and is used for driving the commutator pre-pressed on the rotor to rotate and press downwards, and is matched with the explorator to complete the assembly between the commutator and the rotor. According to the technical scheme, after the rotor is positioned through the positioning mechanism, the commutator is driven by the rotary pressing mechanism to rotate and press downwards, the commutator is gradually aligned with the rotor in the process, and assembling is completed. The structure is simple, and installation efficiency and installation precision can be improved.

The invention relates to a shaft grounding device (1) for dissipating an electrical charge and / or voltage from a shaft (4), in particular for a drive train (2) of an electrically powered motor vehicle (3), comprising a rotatably mounted shaft (4) into which a cavity (7) extends axially from an end face (6) having a shaft opening (5), and a first, rotationally fixed and electrically conductive sleeve (8) passes through the shaft opening (5) and extends axially into the cavity (7) of the shaft (4), wherein an electrically conductive retaining element (9) is rotationally fixed to or in a receptacle (50) of the rotatable shaft (4) in the cavity (7).wherein an electrically conductive centering means (10) extends coaxially into the sleeve (8) from the retaining element (9) in the axial direction or surrounds the sleeve (8) from the radial outside and an electrically conductive bearing (12) is arranged in the axial overlap area (11) of the retaining element (9) and the receptacle (50), so that an electrical contact is established between the sleeve (8) and the centering means (10) during operation of the shaft grounding (1).

The invention discloses a non-contact multi-channel photoelectric device slip ring, and relates to the technical field of slip rings, the non-contact multi-channel photoelectric device slip ring comprises a slip ring stator and a slip ring rotor which are not in contact with each other, and through the specific design of a multi-channel photoelectric device, the multi-channel photoelectric device is set as an outer ring channel and an inner ring channel; the distance between the slip ring stator and the slip ring rotor is determined according to the included angle formed by the light of the laser transmitter, so that the laser receiver can stably receive laser signals, and the inner ring passage and the outer ring passage can be ensured not to interfere with each other; the slip ring stator and the slip ring rotor are not in contact, so that the service life of the slip ring can be prolonged, transmission signal damage caused by abrasion is avoided, and the stability of signal transmission is ensured; the slip ring rotor and the slip ring stator are completely identical in overall structure, so that the production process is simplified, and batch production is facilitated.