158 results about "Slot insulation" patented technology

The utility model discloses an axial magnetic flux disc type motor stator iron core with an insulation structure and a disc type motor, comprising a stator iron core and insulation frameworks, each inner groove insulation framework comprises a left side wall, a right side wall, an inner baffle plate, an upper baffle plate and a bottom baffle plate, one end of the left side wall and one end of the right side wall are respectively connected with two sides of the inner baffle plate to form a V-shaped layout, the inner slot insulation framework is sleeved on the tooth part by taking the tooth part of the stator core as a reference; each outer groove insulation framework comprises two outer baffle plates and a groove insulation part which radially protrudes inwards from the position between the two outer baffle plates, the outer groove insulation framework takes a wire embedding groove of the stator iron core as a reference, the groove insulation part is embedded into the wire embedding groove to insulate the outer end of the wire embedding groove, and the outer baffle plates are attached to the outer side wall of the tooth part; the structure can be applied to an open slot, a closed slot or a semi-closed slot, the inner slot insulation framework and the outer slot insulation framework form nesting and have an interlocking function, it is guaranteed that the whole framework cannot move, the technology is simple, installation is convenient, the creepage distance is easy to guarantee, and reliability is greatly improved.

The invention relates to the technical field of motor manufacturing equipment. The invention discloses a slot insulation paper cutting device which comprises a base, a slot insulation paper laser cutting module, a smoke purifier, a paper feeding and pushing module and a tension paper feeding module are integrated on the base, the slot insulation paper laser cutting module is arranged on the downstream of the tension paper feeding module, and the smoke purifier is arranged above the slot insulation paper laser cutting module; the tension paper feeding module is used for providing stable conveying of slot insulation paper; the groove insulation paper laser cutting module is used for carrying out laser cutting and printing processing on groove insulation paper; the paper feeding and pushing module is used for pushing the groove insulation paper from the tension paper feeding module to the groove insulation paper laser cutting module; the smoke purifier is used for collecting smoke generated in the cutting process. The method has the beneficial effects that 1, high-precision laser cutting and dynamic compensation are achieved, specifically, a special laser cutting module for slot insulation paper is adopted, the cutting focal length of a laser head is adjusted through a hand-cranking wheel, a cutting path is preset according to the slot type unfolding shape of the skewed slot stator, the cutting path is dynamically adjusted, the technology that cutting printing is not cut through is supported, the burr problem of cutting of a traditional cutter is avoided, and the production efficiency is improved; in combination with the tension control of a servo motor paper feeding servo motor and a tension paper feeding module, the cutting precision is ensured to be + / -0.05 mm; 2, an environment-friendly smoke purification system is adopted, a smoke purifier is integrated at the top of equipment, harmful smoke generated in the laser cutting process is collected in real time, the workshop environment is improved, and the environment-friendly requirement is met;

The invention provides equipment for processing slot insulation paper for a skewed slot stator. The equipment comprises a base; a slot insulation paper laser cutting module, a stator loading and unloading module, a slot insulation paper forming module, a smoke purifier, a paper feeding and pushing module and a tension paper feeding module are integrated on the base, the slot insulation paper laser cutting module is arranged at the downstream of the tension paper feeding module, and the smoke purifier is arranged above the slot insulation paper laser cutting module; the slot insulation paper forming module is arranged on the downstream of the slot insulation paper laser cutting module, and the stator feeding and discharging module is arranged on one side of the slot insulation paper forming module; the paper feeding and pushing module is arranged between the tension paper feeding module and the slot insulation paper forming module, and the stator loading and unloading module is matched with the slot insulation paper forming module to work; compared with the prior art, through integrated, high-precision and intelligent design, the problems that traditional skewed slot stator slot insulation paper processing and assembling are low in efficiency and low in precision are solved, and a set of efficient, reliable and environment-friendly integrated equipment is provided for motor manufacturing (especially skewed slot motor stator slot insulation paper installation); in addition, all the modules work cooperatively with a control system through mechanical transmission, and the full-automatic process of groove insulation paper from feeding, cutting and forming to insertion in a stator groove is achieved.

The present application discloses a motor and a household appliance, wherein the motor comprises a stator assembly (100), a rotor assembly (200), and insulating pieces (300). The rotor assembly (200) rotates around a rotation axis (0); the stator assembly (100) comprises a stator iron core (110) and two insulating frames (127, 128) connected to two ends of the stator iron core (110) along the rotation axis (0); the stator iron core (110) comprises a yoke portion (111) and a plurality of stator teeth (112); the yoke portion (111) surrounds the rotor assembly (200); the stator teeth (112) are arranged along the inner periphery of the yoke portion (111) and arranged at intervals along the circumference of the rotor assembly (200); a winding slot (130) is formed between every two circumferentially adjacent stator teeth (112); and two ends of each insulating piece (300) along the rotation axis (0) are respectively connected to the insulating frames (127, 128), and the insulating pieces (300) are further arranged along the inner peripheries of the winding slots (130).

The invention relates to an equivalent modeling establishment method for a winding in a slot of an outer rotor permanent magnet synchronous motor. The method comprises the following steps: S1, obtaining winding parameters of the outer rotor permanent magnet synchronous motor; s2, performing equivalent treatment on copper, air, insulation and enameled wires existing in a single winding; s3, calculating a single equivalent heat conductivity coefficient; s4, stacking according to the single winding in the S2, and calculating the equivalent heat conductivity coefficient of the whole slot winding; and S5, carrying out equivalence on the equivalent heat conductivity coefficient of the whole slot winding obtained in the step S4 and slot insulation again to obtain an equivalent slot heat conductivity coefficient of the whole model, and completing equivalent modeling of the winding in the slot of the permanent magnet synchronous motor. The method has the advantages that materials, including copper, insulation, air, enameled wires and the like, of the winding in the groove are equivalent to the variable-heat-conductivity-coefficient conductor, the heat conductivity coefficient and the heat flux density of the equivalent model are calculated, and meanwhile, the three-dimensional temperature field global simulation model is established, so that the transient temperature field distribution of the outer rotor permanent magnet synchronous motor is more accurate.

The invention discloses a bus duct structure and an assembly method thereof, and the bus duct structure comprises a housing which is provided with at least one installation groove. The insulating layer is attached to and covers the inner surface of the mounting groove; the insulating layer is arranged in the mounting groove, the groove opening of the mounting groove can allow the connecting row to enter or exit from the mounting groove along the depth direction of the mounting groove, the connecting row is embedded in the mounting groove through the groove opening of the mounting groove, and the connecting row is in contact with the insulating layer in an attached manner. According to the bus duct structure and the assembly method thereof provided by the invention, the assembly steps can be effectively simplified, and the temperature rise can be reduced.

The utility model discloses a quick connector for an electrical circuit, which comprises an insulating circuit interface, a sealing ring fixedly connected to one side of the insulating circuit interface, a rotating shaft fixedly connected to the top of the insulating circuit interface, a buckle fixedly connected to the top of the rotating shaft, and an insulating shell fixedly connected to one side of the insulating circuit interface. One side of the insulating shell is fixedly connected with an inserting block, the other side of the insulating shell is provided with an inserting groove, an electrical wiring unit is fixedly connected in the insulating shell, and the top of the insulating shell is fixedly connected with a protective cover and a limiting cover. According to the utility model, open fire and welding equipment are not needed, the safety risk and the operation difficulty in the installation process are reduced, the connection quality problem caused by poor welding is also avoided, and good contact between wires can be ensured, so that the connection resistance is reduced, the electric energy loss is reduced, and the efficiency of an electrical system is improved; meanwhile, the installation process becomes very simple and fast, complex tools and professional skills are not needed, and the working efficiency is greatly improved.

To provide an insulation film capable of easily performing a production or a design change corresponding to a wire diameter of a coil, improving alignment property of the coil by means of a coil guide groove and improving efficiency of a motor, a motor using the insulation film, a compressor using the motor, and an apparatus using the compressor.SOLUTION: An insulation film comprises: a teeth part insulation face 61 abutting on circumferential side faces of stator teeth 32; a slot part insulation face 62 abutting on an inner peripheral surface of a stator yoke 31, extending into a slot 33 and insulating coils 41 adjacent to each other; and a teeth tip expansion part insulation face 63 abutting on an inner peripheral surface of a stator teeth tip expansion part 32B. On the teeth part insulation face 61, a plurality of coil guide grooves 64 extending from an upper end to a lower end is formed in a direction of a rotary shaft 4.SELECTED DRAWING: Figure 3

The invention provides a framework splicing block, a motor framework, an iron core and a motor, relates to the technical field of motors, and solves the technical problems that a traditional splicing block motor is complex in assembly process, difficult in slot insulation installation and lack of an excitation adjusting function. The framework splicing block comprises a splicing block body, a buckling point structure is arranged at one end of the splicing block body, a buckling hole structure is arranged at the other end of the splicing block body, and the splicing block bodies are connected through cooperation. The splicing block body is further provided with an auxiliary winding receding groove and a silicon steel block groove, and the pointing angle of the silicon steel block groove is set according to needs so as to optimize the magnetic field layout. The groove insulation and the frameworks are integrally formed, and axial deviation is prevented through a concave-convex meshing structure of the upper framework and the lower framework. The device has the advantages of being simple in structure, convenient to assemble, high in efficiency and high in applicability.

The present invention relates to the technical field of electrical switch cabinets, and specifically proposes an electrical switch cabinet installation structure, a mounting frame assembly; an armored busbar chamber, which is assembled inside the mounting frame assembly and can be connected to an external power supply busbar; the present invention divides the switch cabinet into three modular armored cabinets: a busbar chamber, a sub-line chamber, and a circuit breaker chamber by arranging L-shaped contacts, insulation grooves, insulation plates one and two, and changes the setting direction of external contacts of the busbar chamber and the sub-line chamber, changing the traditional horizontal setting to a vertical setting, so as to ensure that the installation grooves of the internal contacts of the busbar chamber and the sub-line chamber are filled with insulating oil to achieve primary insulation; when the circuit breaker chamber is split, the insulation plates one and the insulation plates two are automatically closed in the process to achieve secondary insulation and tertiary insulation, which not only ensures safety during maintenance, but also allows maintenance operations to be performed on the circuit breaker chamber and the sub-line chamber separately during maintenance, making the operation more convenient and quicker, and at the same time, the maintenance can be carried out away from the busbar chamber, which is also safer.

The application belongs to the field of electrical insulating materials, and discloses a slot insulating material for a low-altitude aircraft motor and a preparation method thereof. The slot insulating material for the low-altitude aircraft motor comprises, from top to bottom, a first insulating paper layer, a film layer and a second insulating paper layer; the first insulating paper layer and the second insulating paper layer are each independently selected from aramid fiber paper or polyaryl sulfone fiber paper; the film layer is selected from one of polyphenylene sulfide film, polyester film, polynaphthalene ester film, polyether ether ketone film or polyetherimide film; wherein, there is no independent adhesive layer between the first insulating paper layer, the film layer and the second insulating paper layer, the first insulating paper layer and the second insulating paper layer are directly combined on the upper and lower surfaces of the film layer through hot pressing, forming a three-layer glue-free composite structure of insulating paper-insulating film-insulating paper, and fundamentally solving the engineering problem that the glue-free composite slot insulating material is prone to paper breakage.

The utility model relates to the technical field of insulation and isolation, in particular to an insulation and isolation structure for a cabinet large-current output copper bar, which comprises a main board, an output copper bar is arranged on the surface of the main board, and a through hole and a clamping groove are formed in the surface of the main board; a first buckle and a second buckle are arranged on the surface of the insulating plate, and an inserting rod and a notch are arranged on the surface of the insulating plate; the beneficial effects are that a pulling ball is pulled, so that a spring is stretched, an inserting rod enters an insulating plate, the insulating plate is inserted between two groups of output copper bars, the insulating plate abuts against the surface of a main board, and a telescopic rod moves downwards after being extruded by the side surface of the insulating plate, so that a first buckle enters a through hole, and a second buckle moves to the bottom of a clamping groove; the telescopic rod stretches out under pushing of the end spring, the telescopic rod pushes the insulating plate, so that the insulating plate moves upwards, the first buckle moves upwards in the through hole, the second buckle moves upwards in the clamping groove, and the insulating plate is clamped to the surface of the main plate through the first buckle and the second buckle.

The invention provides a rotor of a permanent magnet motor, a manufacturing method of the rotor, the permanent magnet motor and a wind generating set. The rotor includes: a rotating shaft; the iron core is assembled on the rotating shaft, and an iron core groove penetrating through the iron core in the axial direction of the rotor is formed in the iron core; the slot insulating part is provided with a hollow structure, at least one of the two axial ends of the slot insulating part is open, and the slot insulating part is inserted into the iron core slot; a seal disposed at the at least one of the two axial ends of the slot insulator; and the magnetic pole module is fixed in the groove insulating part through insulating impregnating adhesive. According to the rotor of the permanent magnet motor, the magnetic pole module can be effectively fixed, and meanwhile, the magnetic pole module is prevented from generating a thermal demagnetization phenomenon.

The invention belongs to the field of flat wire motors, and relates to a flat wire motor with multiple parallel branches and a winding connection method thereof. Comprising a stator core, slot insulation and a flat wire winding, the flat wire winding is a fractional slot concentrated winding with the span being 1, the flat wire winding adopts a rectangular wire, the wide edge of the rectangular wire is parallel to teeth, and the narrow edge of the rectangular wire is bent; a wire is wound into two layers along the groove height direction to form a winding element, and each tooth comprises two winding elements; the stator iron core and the flat wire winding are insulated through slot insulation; the even number of teeth of the same pole phase group are divided into two groups, and the upper-layer winding elements belonging to the same group of teeth are sequentially connected end to end to form an upper-layer coil group; the lower-layer winding elements are sequentially connected end to end to form a lower-layer coil group; the upper-layer coil assembly on the first group of teeth and the lower-layer coil assembly on the second group of teeth are connected end to end to form a first branch; the lower-layer coil assembly on the first group of teeth and the upper-layer coil assembly on the second group of teeth are connected end to end to form a second branch; the two branches are connected in parallel.

The invention discloses a medium-voltage transistor with a fin-shaped structure and a manufacturing method thereof, and the medium-voltage transistor with the fin-shaped structure comprises a substrate, a fin-shaped structure which protrudes out of one surface of the substrate, a gate structure which stretches across the fin-shaped structure, a source electrode which is arranged at one side of the gate structure and is embedded in the fin-shaped structure, a drain electrode is disposed on the other side of the gate structure and embedded in the fin-shaped structure. A second deep trench insulator is embedded in the substrate and adjacent to the source electrode and the drain electrode. An insulating structure is embedded in the fin-shaped structure below the gate structure. Wherein the insulating structure comprises a first deep trench insulator and a first shallow trench insulator enlarged from the side wall of the first deep trench insulator to the source electrode.

The utility model discloses an insulation paper flanging device of a stator slot insulation machine, and relates to the technical field of flanging devices. The first rotating shaft and the second rotating shaft are rotationally arranged on the support assembly; the two ends of the first rotating shaft are fixedly connected with the limiting rings; the two ends of the second rotating shaft are fixedly connected with the guide rings, groove insulation paper is arranged between the first rotating shaft and the second rotating shaft in a penetrating mode, and the guide rings are used for driving the two sides of the groove insulation paper to be folded and flanged; and the plurality of round rods are located on one side of the second rotating shaft, and the plurality of round rods are used for extruding the groove insulation paper. According to the flanging device, the first rotating shaft and the limiting ring are used for guiding, then the second rotating shaft and the guide ring are used for conveniently folding, finally the round bar is used for extruding and clinging, the whole structure is simple, the cost is low, meanwhile, abrasion to groove insulation paper can be reduced, and the machining condition can be conveniently observed.

A small-radius curve joint insulation device with guard rails comprises a spacer block lapped between two butt-joint steel rail interfaces, an insulation inner clamping plate is arranged between the spacer block and a steel rail, an insulation outer clamping plate opposite to the insulation inner clamping plate is arranged on the outer side of the steel rail, and a spacer piece is arranged between the butt-joint steel rail interfaces; the I-shaped section insulation is combined with the spacer block and the groove-shaped insulation, so that the problems of pulling deformation and insulation failure caused by uneven stress of double-section insulation are solved; the insulation assembly can be better attached to a track structure, stress is effectively dispersed, the impact resistance is improved, long-term stable operation is ensured, and the requirements of high-load and high-frequency train operation are met. According to the device, the mechanical strength of the insulation assembly is improved, the problems of deformation and aging caused by long-term use are reduced, the service life of equipment is prolonged, the stability and reliability of a track circuit are further improved, and safe and efficient operation of railway transportation is ensured.

The utility model discloses an electrical wiring insulation protection device, and relates to the technical field of insulation protection. One side of the metal sleeve shell is provided with a clamping sheet used for wiring, one side of the metal sleeve shell is fixedly connected with an insulating plastic sheet, one side of the insulating plastic sheet is fixedly connected with a track ring, the inside of the track ring is rotatably connected with an insulating plastic block, the inside of the insulating plastic block is provided with a hexagonal groove, and the hexagonal groove is internally provided with a groove. According to the utility model, through the arrangement of the track ring, the insulating plastic block and the hexagonal groove, the insulating plastic block can deform and clamp the nut, it is ensured that the electrical wiring is stable and safe in the fixing process, and the cooperation of the insulating plastic plectrum and the triangular block enables the electrical wiring to be more stable and safer. The nut is effectively prevented from loosening after being used for a long time, the risk of accidental electric shock when the nut is unscrewed is reduced, and higher safety guarantee is provided for operators.

A combined connector comprises an insulating shell, a first electric conductor is arranged in the insulating shell, two first conductive plates and two second conductive plates are arranged on the first electric conductor at intervals in the length direction of the first electric conductor, and the first conductive plates and the second conductive plates are both vertically connected to the first electric conductor. Two first conductive connection chambers are adjacently arranged on one side in the insulating shell, and two second conductive connection chambers are adjacently arranged on the other side in the insulating shell; a plug is inserted into each second conductive connection chamber, an anti-tripping buckle is arranged on the side face of each plug and below the corresponding guide column, and an anti-tripping hook matched with the anti-tripping buckle is arranged in the side wall of each second conductive connection chamber; the first conductor is provided with a connector socket, and the insulator is provided with a connector slot above the connector socket. The anti-drop hook on the insulating part and the anti-drop buckle on the plug can form effective locking, so that the plug is not easy to slide out accidentally after being inserted into the insulating part, and the electrical performance of a product and the use safety of a user can be effectively improved. According to the utility model, the plug-in type electrical connector can be adopted to realize the transverse connection among the multi-position connectors.

The present invention relates to the technical field of transformers, and particularly to a low-voltage double-layer winding structure and a transformer. The low-voltage double-layer winding structure includes an inner paper tube, an inner layer winding, a plurality of oil duct spacers, an insulating cylinder, and an outer layer winding; the plurality of oil duct spacers are arranged between the inner layer winding and the outer layer winding, and a lapping groove is formed in the surface of each oil duct spacer facing away from the inner layer winding along its own thickness direction. The insulating cylinder is lapped on the lapping grooves of the plurality of oil duct spacers, and the groove walls of the oil duct spacers corresponding to the lapping grooves are attached to the side surfaces of the insulating cylinder; the lapping grooves are arranged corresponding to the breakdown risk areas of the inner layer winding and the outer layer winding. The present invention effectively reduces the radial dimension of the outer layer winding, reduces the amount of wire used in the coil, and reduces the production cost, solving the technical problems of the existing double-layer winding structure that the radial dimension of the outer layer winding is too large, resulting in a large amount of wire used in the coil, high production cost, and the overall winding structure occupying a large space, resulting in an increase in the size of the transformer.

The utility model relates to the technical field of automobile parts, in particular to an automobile wiring terminal stable in connection, which comprises an insulation fixing plate, an upper insulation fixing frame and a lower insulation fixing frame. An insulating fixing frame is fixedly installed at the upper end of the insulating connecting frame, limiting plates are symmetrically installed on the two sides of the insulating fixing frame, limiting pull rods are fixedly installed at the upper ends of the limiting plates, limiting grooves are formed in the upper ends of the limiting pull rods, and an upper insulating fixing frame is installed in the insulating fixing frame. According to the wiring terminal, the limiting pull rod is fixedly connected with the external wiring harness joint through the limiting groove, so that the positioning accuracy of the wiring harness joint is ensured, the close fit between the wiring harness and the wiring terminal is enhanced, and the wiring harness is effectively prevented from loosening or falling off due to vibration or external force; therefore, the reliability and the safety of the automobile electrical system are improved.

The invention relates to a motor flat wire winding arrangement structure applied to the field of flat wire motors, the winding arrangement structure comprises an iron core, wire grooves, insulation paper, flat wires, phase copper bars and star point bars, the star point bars are arranged on the inner side and the outer side of a coil, the phase copper bars are universal in design, the cost is reduced, the welding end of the coil, the phase copper bars and the star point bars are arranged on the same side, no I-pin exists, and the winding arrangement structure is simple in structure and convenient to use. The axial length of the motor can be shortened, the welding time, the number of tools and the cost can be saved, when the flat wire is bent, the extrusion block is driven to approach the surface of the flat wire in the wire slot under the action of downward pressing deformation, and the flat wire can be restrained and limited along with approaching of the extrusion block and cooperation of the fixing block; in this way, it is avoided that the bent part of the flat wire falls to the top end of the wire groove in the arranging process, the uniformity of the follow-up wire arranging height is affected, in addition, the bearing block comprises a deformation block and a fixing piece, when the deformation block is pressed, power is cut off, the deformation block deforms to wrap the side edge of the flat wire and then is cured, the bent state of the flat wire is maintained, and then the clamping state is maintained.

The utility model belongs to the technical field of aviation motor design, and relates to a permanent magnet brush direct current tachogenerator armature assembly in-groove structure, which comprises a binding wire (1), a groove insulator (2) and a coil (3). According to the utility model, on the basis of the existing armature assembly, the structure in the groove of the armature assembly is optimized in combination with product technical requirements and use environment requirements. The permanent magnet brush direct current tachogenerator is high in slot fullness rate, and in order to solve the problem that the slot fullness rate of the product is high, the high slot fullness rate of the motor enables the heat dissipation performance of the motor to become poor, the temperature rise of a coil becomes high, the aging of materials is accelerated, the coil is easy to damage after a slot wedge is extruded in a coil inserting process, and the damage is possibly aggravated by vibration and impact environments in a use process. And the motor is easy to break. After the structure in the groove is improved, extrusion in the groove is reduced, and the situation of wire breakage is avoided.

The application relates to an oscillation hot-pressing integrated forming process for L-shaped slot insulation of a generator rotor, and specifically comprises the following steps: S1, mold preparation and base layer laying, S2, primary oscillation hot-pressing forming, S3, thickening layer laying and secondary oscillation solidification, wherein when the oscillation hot-pressing head performs pressing, the working surface of the oscillation hot-pressing head applies dynamic pressure to the material in a combined mode of rolling rolling and wave scanning, and S4, post-processing, the application has the following advantages: through the introduction of a dynamic oscillation pressure field, the interlayer fusion and internal stress problems in the twice hot-pressing process of different materials are effectively solved.

The invention relates to a stator (1) for an electric machine (2), comprising a plurality of circumferentially distributed stator slots (3), which extend axially through the stator (1) and in each of which a plurality of electrical conductors (4) of a stator winding (5) are arranged, which electrical conductors exit the stator slots (3) axially on both sides, thereby forming a winding head (26a, 26b) in each case, wherein a slot insulation paper (6) is arranged in each case between a stator slot (3) and the conductors (4) accommodated therein, which slot insulation paper electrically insulates the stator slot (3) with respect to the conductors (4), and wherein the slot insulation papers (6) have a substantially U-shaped cross-sectional contour, having a base (7) which extends in the circumferential direction and from which a first free limb (8) and a second free limb (9) each extend away from the base (7) in the radial direction, and the slot insulation papers (6) protrude axially from the stator slots (3) with a protruding section (11) on at least one end face (10) of the stator, wherein the circumferential distance (12) between the first free limb (8) and the second free limb (9) increases in the protruding section (11) of the slot insulation papers (6) as the axial distance (13) increases when viewed from a stator slot (3).

The utility model discloses a combined self-temperature-limiting ribbon heater, which comprises two buses arranged in parallel, an insulating layer is coated outside a semiconductor heating core tape, a metal wire woven belt-shaped shielding layer is spirally wound outside the insulating layer, and an insulating outer sheath is coated outside the metal wire woven belt-shaped shielding layer; the top, the bottom and the two sides of the inner wall of the insulating layer are all provided with inner shearing grooves in the length direction, and the top, the bottom and the two sides of the inner wall of the insulating outer sheath are all provided with outer shearing grooves in the length direction. According to the utility model, the inner shearing groove and the outer shearing groove are arranged on the insulating layer and the insulating outer sheath, so that blades of scissors can be conveniently inserted, the metal wire woven belt-shaped shielding layer is reserved, the winding of the insulating adhesive tape is not limited by space, the operation is simpler, the winding, sealing and fixing are more facilitated, and the insulating layer and the insulating outer sheath are reserved; the insulating and wear-resisting effects are not influenced, and the use is safer.

The invention belongs to the technical field of motor manufacturing, and provides a blank cap type rotor lead assembly structure, which comprises a rotor, an insulating bush, an insulating lead screw, a connecting screw, a lead slot wedge, a choke plug and a lead, the choke plug is screwed in the choke plug mounting groove; the lead slot wedge comprises a plurality of slot wedge units; the rotor is internally provided with a lead mounting groove and a containing groove which are matched with the lead, the insulating bush is arranged in the containing groove, the choke plug abuts against the insulating bush, the side wall of the insulating bush is provided with an opening, the bottom end of the insulating bush is provided with a communication port, and the opening is communicated with the communication port; the connecting screw is arranged in the rotor, one end of the lead is connected to the connecting screw through the insulating lead screw, and the other end of the lead sequentially penetrates through the opening, the lead mounting groove and the slot wedge mounting groove and extends to the outer side of the rotor. According to the rotor lead assembly structure, the machining amount of the rotor is reduced, the rigidity of the rotor is enhanced, and due to the structural characteristics of the multi-section lead slot wedge, later unit maintenance and poor contact point inspection can be facilitated.

Semiconductor device with a first active component region (20) and with a second active component region (22), wherein the first active component region (20) and the second active component region (22) extend planarly along a first lateral direction (L1) and a second lateral direction (L2) differing from it; and with a trench insulation structure (10, 10') that electrically insulates the first active component region (20) from the second active component region (22) along the first lateral direction (L1) and has at least one electrically conductive side wall (14, 14', 14"); wherein the trench insulation structure (10, 10') comprises: - a continuously insulating trench insulation base wall (30); - several spaced-apart trench insulation sections (32a, 32b) with electrically conductive side wall sections (14a, 14b) located between them;- wherein the multiple trench insulation sections (32a, 32b) and the electrically conductive sidewall sections (14a, 14b) are spaced apart from the trench insulation base wall (30) (a, b).;

The invention relates to a bearing arrangement with integrated electrical insulation, in particular for an electric machine or motor, and to an associated production method. The bearing arrangement comprises a bearing (10) provided with a first ring (12) and a second ring (14). The device comprises at least one insulating sleeve (26) mounted on the second ring and provided with a bushing (28) and an insulating insert (30) made of an electrically insulating material. An insulative insert is overmolded on the second ring and overmolded at least on one of the outer and inner surfaces of the liner. The surface of the bushing is provided with at least one first slot (36) inside which a first attachment rib (40) of the insulating insert having a complementary shape extends, the first slot extending circumferentially about a first axis, the first axis being radially offset with respect to an axis (29) of the surface of the bushing.