18results about How to "Reduce copper consumption" patented technology

The invention discloses a contactor magnetic core, a contactor electromagnetic assembly and a contactor. The contactor magnetic core comprises a static magnetic core which is suitable for being fixed on a magnetic conductive plate of the contactor and is provided with a main body part which is suitable for being inserted into a coil framework of the contactor; and the movable magnetic core is suitable for being movably inserted into the coil framework and is provided with a flange part positioned at the upper end of the movable magnetic core. When the static magnetic core and the movable magnetic core are inserted into the coil framework, the main body part of the static magnetic core faces the flange part of the movable magnetic core, and the diameter of the main body part of the static magnetic core is slightly larger than that of the flange part of the movable magnetic core, so that the electromagnetic attraction force between the static magnetic core and the movable magnetic core is increased. According to the invention, the number of turns and the copper consumption of the coil can be reduced while enough electromagnetic attraction is ensured, so that the cost and the size of the contactor can be reduced.

This invention discloses a six-phase reactor for an energy storage converter, belonging to the field of reactor technology. It includes a first reactor assembly and a second reactor assembly. The first reactor assembly includes a first base, which is composed of a U-shaped support plate and an L-shaped support plate, allowing for independent and stable placement. The second reactor assembly includes a second base, mainly composed of an L-shaped support plate, which is temporarily stabilized during manufacturing using a detachable support fixture. After each reactor assembly independently completes overall impregnation and drying, the support fixture is removed. Then, the surfaces of the terminals and connectors to be connected in parallel are polished and the paint is removed. The two bases are then fixed using base connectors, and the corresponding phase terminals are electrically connected in parallel using a phase-parallel connector to form a six-phase output. This invention, through differentiated base design and fixture assistance, allows the two reactors to be impregnated separately before being connected in parallel, balancing impregnation process quality and electrical connection reliability, and also helps to reduce the overall size of the unit.

The application discloses a motor power supply connecting structure and an assembling method, which comprise a stator winding, a plastic bus plate is arranged on the stator winding, three-phase terminals are connected on the plastic bus plate, a plurality of enameled wires extending outward are arranged on the stator winding, the enameled wires are embedded on the inner side of the plastic bus plate, and one end of each enameled wire is connected with the three-phase terminals. A plurality of wire grooves and metal buckles are arranged on the plastic bus plate to replace the plastic-coated bus bar, the connection between the motor stator windings is realized through the metal buckles, and the plastic bus plate is connected with the three-phase terminals through the wire outlet, so that the volume is small, the transmission path is high in flexibility, the product is small in size and light in weight, the copper bar is removed, the enameled wires are directly connected, the copper consumption can be effectively reduced, and the cost can be effectively reduced.

The application relates to the technical field of energy-saving motors, in particular to a heat-dissipation type permanent magnet motor which comprises a machine shell, a stator arranged in the machine shell, a rotor rotatably supported in the machine shell through a rotating shaft, and a heat-dissipation unit arranged on the machine shell and used for accelerating heat dissipation of the motor. The cooling medium is directly led to pass through the surface of the permanent magnet on the rotor by the rotation of the spiral outer circulation cavity, the permanent magnet is directly cooled, the copper consumption is reduced, energy saving is realized, the cooling medium is driven into the spiral inner circulation cavity by the rotation of the spiral outer circulation cavity, the secondary heat exchange is completed with the stator core and the winding end part, the average temperature of the stator core is reduced, the iron loss is reduced, the local hot spot temperature of the winding end part is reduced, the resistance is reduced, the copper consumption is further reduced, the cooling medium after absorbing heat is discharged into the spiral cooling ribs through the exhaust port by the centrifugal fan and the spiral outer circulation cavity, and the third heat exchange is carried out with the inner wall of the machine shell and the outer wall of the core of the stator.

The invention relates to a compressor which comprises a crankshaft, a rotor and an oil-gas separation piece. The rotor is connected to the crankshaft and comprises a fluid through hole. The oil-gas separation part comprises an oil-gas separation part, a first oil collecting part and a first valve, the oil-gas separation part comprises a fluid inlet, a first cavity, a first flow channel, a second flow channel, a second cavity, a fluid outlet, a first oil catching structure and a second oil catching structure, and the first cavity comprises a first sub-cavity and a second sub-cavity which are communicated through the first flow channel; the fluid inlet is communicated with the first sub-cavity, the second runner is communicated with the second sub-cavity and the second cavity, the fluid outlet is communicated with the second cavity, the first runner is arranged away from the crankshaft in the radial direction of the rotor, and the second runner is arranged close to the crankshaft; the first oil catching structure is arranged in the second sub-cavity, the second oil catching structure is arranged in the second cavity, a first oil collecting part is arranged on the bottom wall of the oil-gas separation part, the first valve is connected to the bottom wall of the oil-gas separation part, and the first valve controls the first oil collecting part to be opened or closed.

The present application relates to the technical field of motor anti-shake, and particularly relates to a vehicle motor anti-shake control method and system, a vehicle and electronic equipment, comprising: acquiring motor speed and demand torque in real time, and calculating time sequence indexes and frequency domain indexes of the motor speed; combining the collected motor speed, demand torque, time sequence indexes and frequency domain indexes into a state vector; inputting the state vector into a pre-trained neural network model, and outputting a compensation torque; superimposing the compensation torque and the demand torque to generate a total torque and transmit the total torque to a motor controller to perform torque control; wherein the training process of the neural network model comprises building an offline simulation environment, offline training a reinforcement learning model and online fine-tuning the model. The present application can realize motor anti-shake function, reduce calibration difficulty and cost, reduce loss, can be online fine-tuned and adapted to a real vehicle, and ensure control effect.

The invention provides a rotor assembly of a self-starting permanent magnet auxiliary synchronous reluctance motor and a motor, the rotor assembly comprises a rotor iron core and permanent magnets, the rotor iron core comprises an outer layer filling groove, an inner layer filling groove, permanent magnet grooves, a shaft hole and a rotor excircle, the shaft hole is located at the central axis position of the rotor iron core, and the permanent magnet grooves are located in the outer layer filling groove. The permanent magnet grooves are located in the periphery of the shaft hole so that the permanent magnets can be arranged in the permanent magnet grooves, the inner-layer filling grooves are located between the permanent magnet grooves and the outer circle of the rotor, and the outer-layer filling grooves are located between the inner-layer filling grooves and the outer circle of the rotor. The permanent magnet grooves, the inner-layer filling grooves and the outer-layer filling grooves form a magnetic barrier layer in the radial direction of the rotor, and the inner-layer filling grooves and the outer-layer filling grooves are filled with conductive conductors. According to the self-starting permanent magnet auxiliary synchronous reluctance motor, the problem of low starting torque of the self-starting permanent magnet auxiliary synchronous reluctance motor in the prior art can be solved.

The utility model discloses a contact part and a relay. Wherein the contact part comprises a mounting seat and at least one switch, and the switch comprises a static contact piece and a movable contact piece; the mounting seat is fixed relative to each static contact piece and comprises a seat body and at least one connecting piece which are fixedly connected with each other; the static contact piece and the movable contact piece are contact pieces, and at least one contact piece is a first contact piece fixedly connected to the base body through a connecting piece. Furthermore, the seat body and the connecting piece are integrally formed through insert injection molding. The relay adopts the contact part. By adopting the above technical scheme, compared with the prior art, the connection strength of the contact element can be ensured more easily.

This utility model relates to the field of synchronous variable frequency motor technology, and provides a permanent magnet synchronous variable frequency motor for tractors, including a stator and a rotor. The rotor adopts a hollow permanent magnet structure, with multiple permanent magnets evenly embedded in the rotor core along the circumferential direction. Multiple weight-reduction slots are provided on the outer side of the rotor core. Weight-reduction holes are provided on the rotor laminations, and the motor's drive shaft has no shaft-mounted fan structure. Compared with asynchronous motors, the permanent magnet motor provided by this utility model has a smaller volume for the same power, and the weight reduction measures make the permanent magnet synchronous motor for tractors lighter and more compact. Because the rotor of the permanent magnet motor uses permanent magnets, the overall current of the motor is reduced, and the heat generated by the motor is also reduced. Furthermore, removing the fan connected to the drive shaft further reduces the motor's weight. The use of a permanent magnet motor for tractors reduces copper losses and improves overall operating efficiency.

The application discloses a standard phase belt integer slot short-pitch lap winding symmetrical 4-branch connection method, which comprises the following steps: 1) dividing positive and negative phase belts, and dividing p-pole pairs into j normal pole pairs and k special pole pairs; 2) connecting coils under the j normal pole pairs according to normal winding pitch y1; 3) performing phase-to-phase exchange on lower-layer coil edges under the k special pole pairs; and 4) recombining the upper and lower-layer coil edges under the k special pole pairs and constructing winding branches. The winding formed by the method of phase-to-phase exchange of the lower-layer coil edges can weaken high-order harmonics, the branches of each phase are completely symmetrical in electric potential and magnetic potential, and there is no circulating current between the parallel branches; the three-phase branches are also completely symmetrical; the connection problem of the short-pitch lap winding symmetrical 4-branch is solved, the advantages of the lap winding are still embodied, the copper consumption of the motor winding is significantly reduced, and the theoretical limitation that the short-pitch symmetrical 4-branch winding cannot be connected under the odd number of pole pairs is broken through.

The utility model belongs to motor technical field discloses a kind of stator assembly and motor with even layer of whole pitch winding. Including stator core and stator winding;The stator winding includes several stacked coils;Several stator slots are set along the circumferential direction of the stator core;N layers of conductors are provided in each stator slot;The first layer to the layer in any stator slot is occupied by the stacked side of each stacked coil, and the other stacked side occupies the Nth layer to the Nth layer in another stator slot spaced apart from the any stator slot by one stator slot;Wherein, N is even, Z is the total number of stator slots, and P is the number of poles;The end portions of the two stacked coils arranged adjacently located in the same layer are welded and fixed.The utility model has the technical advantages of simple welding, low copper consumption and no interphase circulating current.

The application discloses a bearingless permanent magnet synchronous axial flow pump based on integrated winding and a control method thereof. The claw pole type stator comprises a plurality of claw pole units, each claw pole unit has a stator tooth extending in the axial direction and a claw head extending in the radial direction from the end of the stator tooth, and the inner surfaces of all the claw heads enclose a working air gap opposite to the outer surface of the rotor; the torque winding and the suspension force winding are wound on the stator tooth together, share the same axial winding space, and the electrical phase sequences of the two sets of windings are independent; the suspension force winding is configured to pass through two groups of currents with opposite phase sequences; the pose sensor is arranged in the radial gap between adjacent claw heads; by collecting the position sensor in real time, the magnetic pole state of each claw head is dynamically adjusted by controlling the currents of the torque winding and the suspension force winding, and the driving torque and the controllable radial suspension force are generated simultaneously. The application solves the problems of complex structure and insufficient control precision of the existing magnetic suspension pump, and has the characteristics of compact structure, high control precision and fast dynamic response.

The utility model relates to the field of planar transformers, in particular to a winding module, a planar transformer and power equipment, the winding module comprises a wiring board and a secondary winding, the wiring board is provided with a mounting through hole, and the wiring board is provided with a primary side and a secondary side which are opposite along a first direction relative to the mounting through hole; the first side and the second side are opposite in the second direction, the first direction is perpendicular to the second direction, the secondary winding comprises a first winding, the first winding comprises a first half-turn winding and a second half-turn winding which are connected in parallel, and the two opposite ends of the first half-turn winding and the second half-turn winding are connected with the primary side and the secondary side respectively. At least part of the first half-turn winding wire is arranged on the first side, and at least part of the second half-turn winding wire is arranged on the second side. According to the embodiment of the invention, the half-turn winding in one winding is divided into the two half-turn windings, and then the different half-turn windings respectively connected with the primary side and the secondary side are arranged on the two opposite sides of the wiring board, so that the magnetic flux balance can be realized.

A concentrated winding, a motor, and a manufacturing method with an end composite cooling structure are disclosed, belonging to the field of motor manufacturing technology. The concentrated winding includes multiple layers of sheet copper conductors, which are stacked along their thickness direction and electrically connected to form the concentrated winding. Each layer of sheet copper conductors includes an effective conductor segment located within the stator slot and an end conductor segment located outside the stator slot. The multiple end conductor segments are folded away from the stator slot in sequence from the outermost layer to the innermost layer, forming a layered end structure outside the slot. At least some end conductor segments have pre-formed bending areas, which are folded once or multiple times to form locally thickened areas. The outer periphery of the layered end structure is provided with an electrically insulating and thermally conductive potting compound to fill the gap between it and the motor housing, thus achieving both winding end resistance reduction and heat dissipation, suitable for engineering implementation and mass production.

This utility model provides a continuous stator winding, a stator, and a motor, including a multi-phase winding. Each phase winding includes multiple branch windings arranged in parallel. Each branch winding has a continuous winding structure. The multiple branch windings are arranged in multiple groups. The multiple branch windings in each group are arranged adjacent to each other. The corresponding ends of two adjacent groups of branch windings are located in adjacent magnetic poles. In each slot of the stator core, multiple layers are arranged along the radial direction of the stator core. Each group of branch windings is arranged sequentially in each layer along the radial direction of the stator core. In each layer, they are arranged sequentially in the corresponding slots of each magnetic pole along the circumferential direction of the stator core. In each layer, adjacent groups of branch windings have at least one crossing position. At the crossing position, the adjacent groups of branch windings are swapped, without connecting solder joints. The axial length of the stator core is reduced, resulting in high reliability and lower material costs.

The utility model discloses an anti-short circuit structure and a relay. The anti-short-circuit structure comprises a switch and a pushing unit. The switch comprises a movable contact piece and a static contact piece; the pushing unit comprises a pushing body and a first elastic piece; the pushing body is driven by a driving part with an in-place locking function or driven by a transmission mechanism with a mechanical self-locking function so as to push at least one movable contact piece to be connected or disconnected with the static contact piece; the first elastic piece is arranged corresponding to the closing direction of the movable contact piece and is arranged between the pushing body and the movable contact piece so as to provide contact pressure for closing the static contact piece to the movable contact piece when the movable contact piece and the static contact piece are closed; the pushing body is provided with a first limiting part, and the first limiting part is arranged corresponding to the closing direction of the movable contact piece and makes contact with or gets close to the movable contact piece in the closing direction of the movable contact piece when the movable contact piece and the static contact piece are closed. The relay adopts the anti-short-circuit structure. The anti-short circuit structure provides a configuration different from that in the prior art.

This utility model relates to the field of low-voltage switchgear technology, specifically a drawer unit, including a circuit breaker, a manual operating mechanism, and a closing interlocking mechanism. The manual operating mechanism of the circuit breaker is a central manual operating mechanism, with the center of the opening / closing handle and the center A of the circuit breaker both offset to the left relative to the center B of the unit, and the left offset distance L is the same. When the drawer unit is a 600mm wide drawer unit, the left offset distance L is 30-50mm; when the drawer unit is a 500mm wide drawer unit, the left offset distance L is 30-40mm. The locking part of the closing interlocking mechanism is located on the left side of the manual operating shaft. The beneficial effects are: all current specifications of circuit breakers in PC circuit drawer units with cabinet widths of 600mm and 500mm can use a central manual operating mechanism, eliminating the need for an eccentric manual operating mechanism; the fixed position of the circuit breaker center within the unit can also be standardized, simplifying the unit's component layout design and main circuit connection structure design, increasing standardization, and reducing copper usage, with the main circuit connection structure saving 8.8% of copper.

This utility model belongs to the field of motor technology, specifically relating to a segmented stator. This utility model utilizes grain-oriented silicon steel to create a segmented stator, comprising multiple U-shaped iron cores evenly arranged circumferentially. Each U-shaped iron core includes multiple U-shaped iron sheets stacked radially. The edges of the teeth of the U-shaped iron cores are flush, and gaps are left between the teeth of adjacent U-shaped iron cores, which are fixedly connected by insulating clips. The yokes of all U-shaped iron cores abut against the stator housing. Each U-shaped iron core is equipped with a winding coil, and the gaps between adjacent U-shaped iron cores, insulating clips, and the stator housing are filled with potting compound. This utility model maximizes the advantages of grain-oriented silicon steel while optimizing the motor structure and manufacturability, comprehensively improving the overall performance of the motor, further highlighting the potential application value of grain-oriented silicon steel as a substitute for non-grained silicon steel, and promoting the development of motor technology towards high efficiency and high power density.