1373results about "Rotary current collector" patented technology

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.

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.

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.

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 utility model provides a liquid-cooled ultrahigh rotation speed liquid conductive slip ring, which belongs to the technical field of conductive slip rings, and comprises a shell, a bearing, a rotor shaft and a stator shaft, the stator shaft is arranged at one end of the shell, the rotor shaft is rotatably arranged at the other end of the shell through the bearing, a cooling liquid flow channel is arranged in the shell around the periphery of the bearing, and the cooling liquid flow channel is communicated with the stator shaft. A cooling liquid opening communicated with the cooling liquid flow channel is formed in the cooling liquid flow channel; the cooling liquid flow channel is arranged in the shell, and the cooling liquid opening is formed in the cooling liquid flow channel, so that cooling liquid can be effectively introduced for heat dissipation, heat accumulation generated when a bearing and a sealing piece rotate at a high speed is reduced, the overheating condition is prevented, lubrication failure and part abrasion caused by overheating are reduced, and the service life of the bearing is prolonged. Therefore, the service life of the slip ring is prolonged and the reliability of the conductive slip ring is improved.

A grounding ring (10), also called an electrical balance ring, mounted between a fixed element (11) and a rotating element (12) comprises a first frame (20), a membrane (30) and a second frame (40), the first frame and the membrane being capable of carrying an electric current. The membrane includes a wear zone (ZU) at its second end, the wear zone being thicker than the main body of the membrane.

The utility model discloses a slip ring for a motor, relates to the technical field of electric slip rings, and aims to solve the problems that the slip ring provided by the background technology is damaged due to long-time operation, low inter-ring insulation, low ground insulation and the like easily occur, and the existing slip ring is large in size, heavy in weight and low in practicability. Comprising an installation mechanism, the installation mechanism comprises an inner steel sleeve and an inner insulation sleeve, a slip ring assembly is arranged outside the inner insulation sleeve, the slip ring assembly comprises three slip ring sleeves, three leads and two inter-ring insulation sleeves, connecting grooves are formed in the outer walls of one sides of the slip ring sleeves, the three leads are fixedly arranged on the inner walls of the three slip ring sleeves respectively, and the outer walls of the inner insulation sleeve are sleeved with the two inter-ring insulation sleeves respectively. A small end cover is arranged outside the sliding ring sleeve, and six installation openings are formed in the small end cover. The utility model has the advantages of small volume, light weight, compact structure and large conductive bearing capacity, the phenomena of low inter-ring insulation, low ground insulation and the like are not easy to occur in the long-time operation process, and the practicability is improved.

A device according to the invention comprises a brush holder for receiving a brush for transmitting energy between a rotating part and a stationary part of a slip ring with at least a first electrically conductive contact element 1 and a second electrically insulating guide element 2.

The utility model relates to the technical field of conductive devices, and discloses a conductive ring suitable for assembly and a motor assembly. The conductive ring comprises a conductive ring main body, and the interior of the conductive ring main body is used for installing a rotating part; and the conductive fibers are uniformly distributed on the outer edge of the conductive ring main body. According to the conducting ring and the motor assembly, the conducting fiber is arranged on the outer edge of the conducting ring body, and the conducting ring rotates along with the rotating piece. The conductive fibers can be straightened under the action of centrifugal force in the following rotation process; the conductive fibers are straightened, so that the contact effect can be guaranteed, interference between the conductive fibers and a static part is effectively reduced, and abrasion is reduced; the conductive fibers can throw oil to the contact position of the conductive fibers and the static part under the action of centrifugal force, lubrication is guaranteed, abrasion is reduced, meanwhile, an oil film can be effectively punctured, effective conduction is guaranteed, and therefore the conductive performance of the conductive ring is improved.

The high-frequency anti-interference rotary connector comprises a plurality of conducting rings and a plurality of electric brush sets, electric brushes in the same electric brush set are connected through inner-layer clad copper, and the electric brush sets in the adjacent state form a second cable connection set. The central electric brush group in the second cable connection group is used for connecting an inner conductor of a second radio frequency cable, and the remaining electric brush groups at two sides of the central electric brush group are used for connecting an outer conductor of a corresponding layer of the second radio frequency cable, and the electric brush groups connected with the outer conductor of the same layer form an outer shielding ring through outer layer copper coating connection. The plurality of outer shielding rings are radially distributed by taking the electric brush group in the middle as a center, simulate a corresponding coaxial cable structure and wrap and protect coaxial radio frequency signals; protrusions are formed on the conducting ring located on the outermost side in the first cable connection set, the electric brush sets are located between the two protrusions, the two protrusions simulate an outer shielding layer of a coaxial cable structure, and interference of external signals on coaxial radio-frequency signals is avoided.

A shaft grounding member for a rolling bearing, the shaft grounding member being mounted on a rolling bearing unit including the inner ring rotating type rolling bearing in which an outer ring is fixed to a housing and in which a shaft directly connected to a motor is fitted into an inner ring, the shaft grounding member includes: a spring plate including an annular portion and an elastic portion extending continuously from an inner peripheral side end portion of the annular portion to a center of the annular portion, the spring plate being made of a thin plate of a conductive material; and a soft conductive member mounted on a surface of the elastic portion on a side facing the rolling bearing. The soft conductive member is configured to abut against an end surface of the shaft. The spring plate includes a plurality of bent portions provided at a portion of the annular portion facing a side surface of the outer ring so as to be bent in an axial direction, the plurality of bent portions being deformed to apply a pressing force to the outer ring.

The invention relates to the field of conductive slip rings, in particular to a strong and weak current isolation conductive slip ring, which comprises a shell, a first contact compensation device, a second contact compensation device and a multi-layer shielding structure, and is characterized in that a strong conductive inner ring, a weak conductive inner ring, a strong conductive outer ring and a weak conductive outer ring are coaxially arranged in the shell; the first contact compensation device is fixed on the inner wall of the strong conductive outer ring and is used for adjusting the contact pressure between the electric brush and the strong conductive inner ring, the second contact compensation device is fixed on the inner wall of the weak conductive outer ring and is used for adjusting the contact pressure between the electric brush and the weak conductive inner ring, and the multi-layer shielding structure is arranged between the strong conductive system and the weak conductive system. And strong and weak current complete isolation is realized. The contact pressure between the electric brush and the conductive inner ring can be adjusted, the electric brush structure can automatically and elastically compensate along with abrasion of the conductive inner ring, it is ensured that the contact surface always keeps stable pressure and area, and the problems of poor contact, transmission distortion or failure caused by long-term friction of a traditional conductive slip ring are effectively solved.

The invention discloses a dust self-discharging type collecting ring system of a large vertical hydro-generator, and relates to the field of hydro-generator collecting rings. Collector rings are widely applied to products such as power generation equipment, and the existing frequently-applied structures have the phenomena of low matching precision, high temperature, difficulty in discharging abraded carbon powder, easiness in accumulation and easiness in short circuit. The collector ring comprises an upper collector ring, a lower collector ring, an insulating sleeve and a carbon brush, inclined holes are formed in the circumferences of the upper collector ring and the lower collector ring, and carbon powder is driven to be discharged out of the contact parts of the collector rings and the carbon brush through the inclined holes of the upper collector ring and the lower collector ring. According to the invention, carbon powder discharge is facilitated, heat dissipation is facilitated, the temperature of the carbon brush is reduced, and the service life of the carbon brush and the collector ring is prolonged.

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

The utility model discloses a conducting ring, current collection device and current collection equipment, the conducting ring comprises a stator assembly, a rotor assembly, an inner ring and an outer ring, the stator assembly is provided with a first contact surface, the rotor assembly is provided with a second contact surface, and the first contact surface and the second contact surface are in sliding connection; the inner ring, the outer ring and the stator assembly define an accommodating cavity, and the first contact surface and the second contact surface are arranged in the accommodating cavity. According to the conducting ring, the conducting ring can work stably and is convenient to clean.