1729results about "Rotary current collector" patented technology

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.

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.

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 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

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.

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.

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.

A slip ring arrangement according to the invention for an electric machine comprises a first slip ring having a radial inner surface and a radial outer surface, a first contact pin forming an electrically conductive sliding contact with the first slip ring, a first conductor extending axially from the first slip ring and electrically connected to the first slip ring, and a substantially hollow cylindrical first support element having a radial inner surface and a radial outer surface. The first slip ring is arranged with its radial outer surface against the radial inner surface of the first support element. The first conductor is enclosed between the radial inner surface and the radial outer surface of the first support element.The first contact pin is guided radially displaceably within a second support element and is subjected to, or can be subjected to, force in a first radial direction. The second support element is arranged in a volume defined radially by the radial inner surface of the first slip ring, and the second support element is rotatably arranged relative to the first support element. Furthermore, the first contact pin can be subjected to force by a fluid on the side radially opposite the sliding contact. The invention further comprises a rotor of a separately excited synchronous machine.

The invention relates to a shaft grounding device for deriving an inductively generated voltage, current or charge from a first machine element (5), preferably a shaft, into a second machine element (1), having a shaft grounding element (4, 50) for discharging, according to the invention, the shaft grounding element (4, 50) is a component separated from a starting material, preferably a continuous article, said component being penetrated by channels (16) in the longitudinal direction thereof or being provided with perforations and / or surface structures and / or surface textures at least on the contact surface thereof with the first machine element. The invention also relates to a method for manufacturing the shaft grounding device.

This invention relates to a silver-graphite brush material and its preparation method. The material comprises graphite powder, thermosetting resin, additives, and silver, with the following mass percentages: 10-60% graphite powder; 2-20% thermosetting resin; 1-8% additives; and silver as the balance. This invention solves the problems of severe segregation, low interfacial strength, high preparation cost, and long production cycle in current silver-graphite brushes. The material prepared using the method described in this invention can reduce silver segregation, improve interfacial strength, and exhibit excellent comprehensive performance. Furthermore, this method is simple and easy to operate, enabling large-scale mass production.

The conductive slip ring with the self-lubricating structure comprises a slip ring body, the outer side of the slip ring body is coated with a self-lubricating coating, the two sides of the slip ring body are connected with the inner sides of correspondingly arranged positioning bearings through first insulating sleeves, and meanwhile the outer sides of the two positioning bearings are connected with the two sides of the interior of a protective shell. The interior of the slip ring body is connected with a main shaft through a second insulating sleeve, one end of the main shaft penetrates through one side of the slip ring body and extends to the outer side of one end of the protective shell, and an electric brush mechanism is arranged in the middle of the upper end of the protective shell and comprises a sealing seat, a positioning block, a supporting adjusting assembly and an electric brush assembly. A self-lubricating assembly is arranged in the middle of the lower end of the protective shell. According to the conductive slip ring with the self-lubricating structure, the self-lubricating coating is arranged, so that in the relative movement process of the electric brush head and the slip ring body, a solid lubricant is continuously released, a layer of ultra-thin lubricating film is formed between the electric brush head and the slip ring body, the friction coefficient is effectively reduced, abrasion is reduced, and the service life of the conductive slip ring is prolonged.

The invention discloses a collector ring inter-ring insulation device and a collector ring, and belongs to the technical field of power generation equipment, the insulation device comprises an insulation column arranged between an upper ring and a lower ring, the insulation device is characterized in that the insulation column is of a sectional structure, and the insulation column comprises an upper insulation column and a lower insulation column; a middle insulating ring plate is arranged between the upper insulating column and the lower insulating column, the diameter of the upper insulating column is the same as that of the lower insulating column, and the inner side and the outer side of the middle insulating ring plate extend out of the lower insulating column. According to the insulation device, through multi-layer insulation design and mechanical cooperation, the creepage distance can be effectively increased, and the insulation performance is remarkably improved.

A method is proposed for determining a zero-force reference position of a wet-running brush actuator (2) for external excitation of a rotor of an electric motor (EM) arranged on a rotor shaft (RW). While an electric vehicle with an electric motor (EM) is stationary and the rotor is externally excited, a spindle (10) of the brush holder (2), which has an electric stepper motor (4) with an integrated spindle drive, is moved away from the grinding brushes (B1, B2) until the contact between the grinding brushes (B1, B2) and the associated slip rings (SR1, SR2) reaches a contact quality limit, the position assumed by the spindle (10) being defined as the zero-force reference position, from which the steps of the stepper motor (4) are counted in order to variably press the grinding brushes (B1, B2) against the slip ring (SR1, SR2) as required. In addition, a computer program, a computer program product, a system, and an electric vehicle are proposed.

A slip ring arrangement according to the invention for an electric machine comprises a first slip ring module, comprising a first slip ring for electrical contact, a first conductor extending axially from the slip ring and electrically connected to the first slip ring, and a substantially hollow cylindrical first support element. The first slip ring is arranged on the support element in a first axial section on a radial outer surface. In a second axial section, the first conductor is enclosed by the first support element between a radial inner surface and a radial outer surface. Furthermore, a circumferential first web is arranged on the outer surface between the first axial section and the second axial section. The invention further comprises a rotor of a separately excited synchronous machine.

The utility model is applicable to the technical field of slip rings, and provides a high-precision slip ring applicable to ultra-long service life, which comprises a rotor part and a stator part, and is characterized in that the rotor part comprises a main shaft and a bearing fixed on the side wall of the main shaft; the stator part comprises a protective cover and a shell fixed on the protective cover; the side wall of the bearing is fixed on the shell; a first air circulation pipeline is arranged in the main shaft, an air inlet hole is formed in the main shaft, and the air inlet hole is communicated with one end of the first air circulation pipeline. A pipeline of the fan is connected with an air inlet hole of the main shaft, first air circulation pipelines are evenly distributed on the main shaft below the conducting ring, cold air flows to the first air circulation pipelines through the air inlet hole, the conducting ring, the gold-plated row brush and the bearing are cooled firstly, and then the cold air passes through a second air circulation pipeline connected with the shell to cool the conducting ring and the gold-plated row brush. Cold air enters the stator to cool the brush carrier, and finally the air is exhausted from the two sides of the stator side protection cover, so that a circulating cooling system is formed.

The utility model discloses a grounding carbon brush and position sensor combination assembly for an automobile high-voltage driving motor, which comprises a main shell and is characterized in that the left end of the main shell is an external connector, a connector insert is arranged in the external connector, a plurality of bolt mounting holes are arranged at the edge of the main shell, the bolt mounting holes at the left end and the right end of the main shell are connected with a brush carrier, and the brush carrier is connected with a motor. A carbon brush assembly is arranged in the brush carrier, a circular groove is formed in the main shell, and a movable carbon brush protection plate is clamped in the circular groove. Certain electronic devices are arranged between the grounding carbon brush connecting shaft and the ground and used for reducing common-mode voltage on the shaft, and the devices and the eddy current sensor share one PCB. Before the carbon brush assembly is installed, the head of the carbon brush body is fixed in the brush box through the carbon brush protection plate, an operator does not need to make contact with the carbon brush body during installation, when the assembly is installed, a motor shell can press the carbon brush protection plate in place, the carbon brush body automatically pops out to make contact with a shaft, and the failure hidden danger caused by installation is avoided.

The invention discloses an excitation carbon brush and collecting ring digital monitoring operation and maintenance system, method and device and a medium, and belongs to the technical field of power equipment monitoring, and the method comprises the steps: obtaining the real-time current data of a plurality of carbon brushes, and determining the deviation degree of each carbon brush current relative to a reference current; according to the generator operation condition parameters, determining a deviation threshold value used for judging carbon brush current abnormity; when it is detected that the current deviation degree of the target carbon brush exceeds a deviation threshold value, an adjustment control signal is generated; and responding to the adjustment control signal, performing mechanical stimulation operation on the target carbon brush, and changing the contact state of the target carbon brush and the collector ring. Automatic balance adjustment of the current of the carbon brush is realized through mechanical stimulation operation, and the service life of the carbon brush is prolonged.

Proposed is a shaft grounding ring including an annular housing having a first through hole in a central portion thereof through which a motor shaft passes in a front-back direction, and having brush mounting grooves arranged radially on a front thereof, a plurality of grounding brushes respectively inserted into the brush mounting grooves of the housing, and an elastic end of which is in electrical contact with an outer circumferential surface of the motor shaft, and an annular cover coupled to the housing with the grounding brushes in between to fix the grounding brushes, having a second through hole in a central portion thereof in a front-back direction, which communicates with the first through hole and through which the motor shaft passes, and having radially arranged pin holes drilled in the front-back direction so that contact pins of a pressing jig penetrate and contact the front of the housing.

A discharge device for discharging electric currents from a rotor part of a machine, said rotor part having a shaft, the discharge device comprising an axially displaceable contact element, which is at least partly accommodated in a guide, for forming an electroconductive sliding contact between a sliding contact surface of the contact element and a shaft contact surface of the shaft, the sliding contact surface being provided for forming the sliding contact, the contact element being electroconductively connected to the guide and / or a retaining element of the machine, and the contact element being prestressed towards the shaft contact surface by means of a spring element, the contact element being at least partly wetted with an oily fluid, in particular at least in the area of its sliding contact surface.

The invention relates to a fiber yarn, a fiber bundle, a conducting ring, a preparation method of the conducting ring, a motor and a vehicle. The fiber yarn comprises a yarn core, a conducting layer and a bundling layer. The conductive layer covers the peripheral surface of the wire core; the bundling layer coats the peripheral surface of the conductive layer, and the bundling layer is a water-soluble material layer; wherein the bundling layer is configured to be connected with the bundling layer of the adjacent fiber filaments. According to the technical scheme, the bundling layer of each fiber is configured to be connected with the bundling layer of the adjacent fiber, so that all the fibers in each fiber bundle can be bundled into a whole, the stiffness of the fiber bundle is improved, the situation that the fiber bundle is prone to deformation when inserted into the ring body assembly is avoided, and the service life of the fiber bundle is prolonged. Therefore, the smoothness of inserting the fiber bundle into the ring body assembly is improved, and the efficiency of fixing the fiber bundle on the ring body assembly can be improved.

The utility model is applicable to the technical field of slip rings, and provides a slip ring applicable to a medical dual-mode imaging system, which comprises a rotor part and a stator part, and is characterized in that the stator part comprises an elastic sheet, a protective cover, a support, brush wires, an optical fiber baffle and a shell flange; the shell flange is fixed on the side wall of the protective cover, the support is fixed in the protective cover, the elastic piece is fixed on the support through a special jig, and the elastic piece is in a splayed shape. A row of brush wires are spot-welded at the tail end of the elastic sheet to serve as contacts for increasing the contact area between the conductive ring and the brush wires; the rotor part comprises a rotating shaft, a conducting ring, an insulating layer, an optical fiber assembly, a synchronizing wheel and an FC conversion component; and the rotating shaft is rotationally connected into the protective cover through a bearing. According to the slip ring, the problems that a common slip ring is short in service life and large in radial run-out at the rotating speed of 6000 rpm are solved, and continuous long-time normal transmission of the slip ring can be effectively guaranteed.

A battery power disconnect apparatus is disclosed. According to one aspect of the present invention, the battery power-off device comprises: a lower case including an installation space, the upper part of which is open and which is formed along a longitudinal direction, i.e., a first axial direction, and a storage space, the upper part of which is open and which is formed along a longitudinal direction, i.e., a second axial direction; the electronic device includes an installation space, a storage space formed to be separated from the installation space by a partition wall and adjacent to the installation space in a second axial direction, a plurality of relays individually installed in the installation space, a circuit board installed in the storage space through an open upper portion of the storage space, and a control unit installed in the storage space. A lower case including an external connection terminal for electrically connecting to the outside, and an upper case coupled to the lower case so as to be able to cover an open upper portion of the mounting space and an open upper portion of the receiving space; the circuit board is installed in the accommodating space and is configured to be perpendicular to the bottom surface of the accommodating space.

A discharge device for discharging electric currents from a rotor part of a machine having a shaft. The discharge device having an axially displaceable contact element received at least partially in a guide unit and serving to form an electrically conductive sliding contact between a sliding contact surface of the contact element and a shaft contact surface of the shaft, the contact element being connected to the guide unit and / or a retaining element of the machine in an electrically conductive manner and being pre-loaded towards the shaft contact surface by a spring element, the contact element being wetted at least partially by an oily fluid, at least one duct being provided at least in sections of the guide unit and / or of the contact element for the oily fluid, the duct being formed by the guide unit and the contact element.

The invention discloses a multi-device circuit connector for primary and secondary load testing, which belongs to the technical field of circuit connectors and comprises a secondary side connecting seat and a device connecting seat, and multiple groups of secondary side connecting columns and multiple groups of device connecting columns are respectively arranged in the secondary side connecting seat and the device connecting seat. Through the arrangement of the polarity conversion assembly, the direction of a magnetic field formed on the periphery of the current transformer can be continuously changed according to the change of the current direction on a secondary side connecting column in a secondary side circuit of the current transformer; the direction change of the secondary side current of the current transformer is converted into the voltage change condition on the arc-shaped guide plate, the polarity of a secondary current loop can be conveniently determined, meanwhile, the arrangement of the dismounting protection assembly is adopted, and the two short-circuit semicircular plates can be in butt joint with each other through the telescopic rod during dismounting; therefore, the secondary side of the current transformer is continuously in a short-circuit state after the test is completed, and the use safety of the current transformer in the whole test process is ensured.

Provided is a conductive structural member that can suppress a decrease in conductivity even when exposed to foreign matter. [Solution] The conductive structure 1 is a conductive structure that forms a conductive path in an annular gap. The conductive structure 1 includes an annular closing member 2 around an axis x that closes the gap, and an annular conductive path member 3 around the axis x that forms a conductive path 4. The conductive path member 3 penetrates the closing member 2 in the radial direction.

The invention discloses a space light photoelectric composite slip ring which comprises a bearing, a rotor assembly and a stator assembly. The rotor assembly comprises a photoelectric slip ring main shaft frame, a conductive slip ring loop and an optical fiber collimator; the conductive slip ring loop is separated by a conductive slip ring insulating ring and is arranged at the periphery of the photoelectric slip ring main shaft frame; the photoelectric slip ring main shaft frame is connected with the inner ring of the bearing through a bearing inner pressing ring; the stator assembly comprises a photoelectric slip ring main shaft seat, a conductive slip ring brush holder and an eccentric gland. The conductive slip ring brush holder is connected with the photoelectric slip ring spindle seat; the eccentric gland is connected with a photoelectric slip ring spindle seat, and an unequal-thickness adjusting ring is arranged between the eccentric gland and the photoelectric slip ring spindle seat; the optical fiber collimator is mounted on the eccentric gland; the photoelectric slip ring spindle seat is connected with the outer ring of the bearing through an eccentric gland. An optical transmission system and an electric transmission system are integrated into the same shaft system, the purposes of miniaturization and light weight are achieved, the cost is controlled, precision and reliability are high, and the optical transmission system has good environmental applicability and long service life.

The invention provides a conductive block, a conductive ring and a motor, which are applied to the technical fields of sliding electric contact and conductive rings. The conductive block comprises a conductive bracket, a plurality of conductive brush modules, at least one oil scraping module and a fastener, wherein the oil scraping module is at least arranged at one end of the conductive support, and the oil scraping module is used for scraping redundant objects on a conductive contact surface during sliding contact between the conductive brush module and the conductive surface so as to reduce sliding friction between the conductive brush module and the conductive surface; and the fastener is used for fastening and connecting the oil scraping module, the conductive brush module and the conductive bracket. The structure of the conductive block is improved, and an oil scraping function is added to the conductive block, so that a better working environment can be provided for electric contact in the conductive block, and the electric connection reliability of sliding contact is guaranteed.

The utility model relates to the technical field of electronic device manufacturing, conductive connection and the like, and provides a conductive slip ring take-up device which comprises a wire connecting terminal and an elastic sheet connecting terminal. A conductive coil of the wire connecting terminal is arranged on one side of the insulating inner shell, and a conductive wire is installed on the other side of the insulating inner shell and connected with the conductive coil. The conductive elastic sheet of the elastic sheet connecting terminal is arranged on the insulating outer shell, the insulating outer shell is rotatably connected with the conductive coil fixing side of the insulating inner shell, the conductive elastic sheet comprises a coil elastic contact head, and the coil elastic contact head is in contact with the conductive coil. According to the conductive slip ring take-up device, a PIN seat does not need to be welded on the PCB, and an elastic piece does not need to be welded on the PIN seat to be in contact with an electroplated layer on the PCB for conduction, so that the assembly of the device is simplified, the use of a PCB electroplating process is avoided, the environmental protection property and the efficiency of manufacturing are improved, a powder accumulation short circuit caused by the contact of the elastic piece with the electroplated layer of the PCB is avoided, large-current conduction is supported, and the service life of the device is prolonged. And the safety and the stability of the device are improved.