33results about How to "Reduce radial width" patented technology

A susceptor for supporting a semiconductor wafer during deposition of a layer on a front side of the semiconductor wafer, the semiconductor wafer having a diameter D and, at its edge, a notch having a depth T, comprising: a ring-shaped placement area having an internal diameter d for the placement of the semiconductor wafer in the edge region of a rear side of the semiconductor wafer, wherein, with the semiconductor wafer having been placed, the relationship (D-d) / 2<T is satisfied,and a protrusion of the area for the placement of semiconductor wafer in the region of the notch of the semiconductor wafer extending the placement area inward, and which completely underlays the notch of the semiconductor wafer.

A rotor and a method of constructing a rotor are disclosed. The rotor includes a hub that is capable of being supported by a shaft that extends along an axis, a plurality of laminations, and a plurality of wire windings supported by the plurality of laminations. The hub includes an inner structure configured to support the hub relative to the shaft, an outer structure that supports the laminations, and an intermediate structure that is coupled to the inner and outer structures and supports the inner and outer structures relative to one another.

A motor includes a plurality of bus wires of a common phase which are put together before being guided in a common passage to minimize the space arranged to guide the bus wires. Also, the bus wires of a common phase are easily insulated from those of different phases, and an axial height of the motor is reduced. Further, a radial width necessary to guide the bus wires is reduced, and an axial height of the motor including a sensor portion which detects a rotary position of the motor is reduced. Also, the bus wires are easily extended from the armature, and an amount of work required to connect the bus wires and the terminals is reduced. Furthermore, the connection terminal portion does not interfere with the bus wires when they are being guided.

An improved variable geometry diffuser (VGD) mechanism for use with a centrifugal compressor. This VGD mechanism extends substantially completely into the diffuser gap so that the VGD mechanism may be used more fully to control other operational functions. The VGD mechanism may be used to minimize compressor backspin and associated transient loads during compressor shut down by preventing a reverse flow of refrigerant gas through the diffuser gap during compressor shutdown, which is prevented because the diffuser gap is substantially blocked by the full extension of the diffuser ring. During start-up, transient surge and stall also can be effectively eliminated as gas flow through the diffuser gap can be impeded as load and impeller speed increase, thereby alleviating the problems caused by startup loads at low speeds. The VGD mechanism can be used for capacity control as well so as to achieve more effective turndown at low loads.

A motor includes a base, a winding assembly and a rotor. The base includes a pivoting portion. The winding assembly includes a support. The support includes at least one coil supporting portion and a circuit supporting portion connected to the at least one coil supporting portion. A coil is arranged on each of the at least one coil supporting portion. A circuit is arranged on the circuit supporting portion and electrically connected to the coil or coils. A folding portion is arranged between the at least one coil supporting portion and the circuit supporting portion. The circuit supporting portion and the at least one coil supporting portion are folded and stacked together via the folding portion. The rotor is rotatably coupled to the pivoting portion of the base. Due to the arrangement of the folding portion, a radial width of the motor is efficiently reduced.

The invention discloses a peanut shelling device. The device comprises a first shell, a disk, a first cylinder, a material splitting bench, a shelling mechanism and a first separating mechanism, wherein the first shell includes a first portion, a second portion and a third portion; the disk is arranged on the central section of the upper end of the first portion; the first cylinder is arranged inthe first portion; the upper portion of the material splitting bench is located in the first portion and a lower portion is optionally located in the first portion or in the second portion; the shelling mechanism includes a rotation body, a second cylinder, a first spring and a plurality of squeezing components; and the first separating mechanism includes a second shell, a screw, a first materialreceiving box, and a first air blower. In the invention, a squeezing degree to peanuts can be adjusted, peanut shell breaking efficiency is increased, the breakage rate of peanut kernels is reduced, and the peanut kernels and peanut shells can be completely separated so that the peanut kernels and the peanut shells can be collected.

The invention discloses a self-pumping shaftless double-flywheel energy storage device using a compound molecular pump. The upper and lower spherical flywheel rotors are symmetrically distributed at both ends of the motor stator, and a groove is opened on the side close to the motor stator, and a motor is embedded in the groove. Rotor, the flywheel rotor is provided with a five-degree-of-freedom magnetic bearing radially outside, which includes an axial stator, a radial stator, a torsion stator, and a permanent magnet. Gyroscopic effect; there is a composite molecular pump under the flywheel, the upper part is a turbo molecular pump, the lower part is a traction molecular pump, and the middle is a transition structure. The pumping speed of the low-pressure side, the radius of the moving blade and the static blade decreases from top to bottom; the spiral groove of the traction molecular pump is opened on the stator, and the rotor is smooth; the radius of the moving blade on the upper part of the pump body is relatively large, and the centrifugal force is small, which improves the vacuum pump performance. operational reliability.

A yaw bearing assembly (1) and a wind power generator group. The yaw bearing assembly (1) comprises: a base (10), comprising a first base body (11) and a second base body (12) which are sleevingly connected and arranged coaxially; and a rotary connecting piece, connected to the first base body (11) and the second base body (12), wherein the rotary connecting piece comprises a first bearing (21) and a second bearing (22) which are arranged on the axis of the first base body (11) and the second base body (12) at an interval, and the first base body (11) and the second base body (12) are rotatably connected by means of the first bearing (21) and the second bearing (22). The yaw bearing assembly (1) may be used for a yaw system of a wind power generator group and may reduce the width of a cabin of the wind power generator group on the basis of meeting yaw requirements of the wind power generator group, thereby reducing cost and facilitating transport.

The invention discloses a peanut shelling device. The device comprises a first shell, a disk, a first cylinder, a material splitting bench, a shelling mechanism and a first separating mechanism, wherein the first shell includes a first portion, a second portion and a third portion; the disk is arranged on the central section of the upper end of the first portion; the first cylinder is arranged inthe first portion; the upper portion of the material splitting bench is located in the first portion and a lower portion is optionally located in the first portion or in the second portion; the shelling mechanism includes a rotation body, a second cylinder, a first spring and a plurality of squeezing components; and the first separating mechanism includes a second shell, a screw, a first materialreceiving box, and a first air blower. In the invention, a squeezing degree to peanuts can be adjusted, peanut shell breaking efficiency is increased, the breakage rate of peanut kernels is reduced, and the peanut kernels and peanut shells can be completely separated so that the peanut kernels and the peanut shells can be collected.

A washing machine provided with a balancing device which may suppress variation in horizontal vibration of a spin basket without performing control operation. The balancing device includes a ring-shaped casing installed to be concentric with the spin basket, and a plurality of the balancing balls and a viscous fluid. A ring-shaped ball accommodation portion, a fluid accommodation portion provided at a lower inner side of the ball accommodation portion in a radial direction of the ball accommodation portion, and a communication channel are formed in the casing. The fluid accommodation portion is provided at a portion of the casing along a circumferential direction of the casing. A bottom surface of the ball accommodation portion is inclined downward such that the balancing balls gather at the opposite position facing the fluid accommodation portion when rotation of the spin basket is stopped.

The invention discloses a brushless disc type double-rotor motor, which comprises a motor housing, a stator fixedly arranged inside the axial ends of the motor housing, an outer rotor arranged in the motor housing and matched with the stator, and One end of the motor housing is rotatably connected to the outer rotor output shaft fixedly connected to the outer rotor, and the inner rotor arranged in the motor housing and matched with both the stator and the outer rotor is rotatably connected to the other end of the motor housing and connected to the inner rotor. The output shaft of the inner rotor is fixedly connected, and the inverter is electrically connected to the stator. The present invention has the characteristics of a disc-type permanent magnet motor, the stator is fixed on the inner side of the end covers at both ends, the permanent magnet inner rotor is fixed on the inner rotor output shaft to rotate together, the claw pole rotor is located between the two-phase stator and the inner rotor, and They form an electrical angle of 90° to each other, and are fixed on the output shaft of the outer rotor to rotate together. Only a set of two-phase inverters can be used to coordinate the work to realize brushless power feeding and the speed / torque difference between the two shafts. adjust.

The invention relates to a stator (1) for an electric machine of a motor vehicle, comprising a laminated core (2) having an inner side (4) with winding grooves (6) and having an outer side (5), windings (9), which are arranged in the winding grooves (6) and form winding heads (10) on axially opposing front faces (7, 8) of the laminated core (2), and a cooling jacket (11) which conducts cooling fluid and has a first metal sheet (12) which forms an inner wall of the cooling jacket (11) facing the laminated core (2), and a second metal sheet (13) which forms an outer wall of the cooling jacket (11) surrounding the inner wall, wherein an axial height (19) of the cooling jacket (11) exceeds an axial height (18) of the laminated core (2), and the cooling jacket (11) has a laminated-core coolingjacket region (21) for encasing the laminated core (2) and two axially opposing winding-head cooling jacket regions (22) adjoining the laminated-core cooling jacket region (21) for encasing the winding heads (10). The invention also relates to an electric machine and to a motor vehicle.

The invention belongs to the laser cladding technology, and provides a deep blind hole inner wall laser cladding device. The problems that existing laser cladding efficiency is low, and laser claddingmachining cannot be conducted on the inner wall of the root of a deep blind hole or is difficult are solved. The device comprises an optical fiber laser, a collimating mirror set, an integral mirror,an optical wedge and a protective lens, wherein the optical fiber laser is used for outputting a laser beam with a divergence angle; the collimating mirror set is positioned in an emergent light pathof the optical fiber laser and used for collimating the laser beam with the divergence angle output by the optical fiber laser into parallel circular light beams and transmitting the parallel circular light beams to the integral mirror; the integral mirror is used for reflecting the parallel circular light beams, and light spots of the reflected light beams at a molten pool are rectangular lightspots; the optical wedge is positioned in an emergent light path of the integral mirror and used for deflecting the light beams to the inner wall of the root of the machined deep blind hole; and the protective lens is positioned in an emergent light path of the optical wedge.

The invention discloses an impeller, a water pump and a design method of the water pump. The impeller comprises a front cover plate, a rear cover plate and vanes arranged between the front cover plate and the rear cover plate, wherein the radius of the front cover plate is larger than that of the rear cover plate, the edges of the vanes are located outside the edge of the rear cover plate, and the liquid flowing-out direction at a water outlet of the impeller is the axial direction. The water pump comprises the impeller, the impeller is arranged inside a pump body of the water pump, a pumping chamber cavity of a pumping chamber which is in the pump body and cooperates with the impeller to work is axially arranged, a separating tongue is arranged in the pumping chamber, the arrangement angle psi 0 of the separating tongue is from 15 degrees to 25 degrees, 1 / 6 part of the pumping chamber is located under the rear cover plate of the impeller, and the rest of the pumping chamber spirally and gradually exceeds the position under the rear cover plate. By means of the impeller, the water pump and the design method of the water pump, the liquid flowing-out direction of the liquid at the water outlet of the impeller is changed into the axial direction instead of the radial direction, and therefore the size of the water pump is decreased.

The invention provides a headphone and relates to the field of headphones. The earphone comprises at least one earshell with a partition installed, a speaker assembly is installed on the partition, the speaker assembly and the partition together separate the earshell where it is located into a front cavity and a rear cavity, and the partition has at least one acoustic short-circuit channel Each acoustic short-circuit channel group includes: a first channel connecting the front cavity and a rear cavity; a second channel connecting the first channel and the outside world. The earphone realizes the simultaneous adjustment of the air flow between the front chamber, the rear chamber and the outside world, and can more flexibly change the low-frequency sound quality effect of the earphone.

The invention discloses a stator insulating cover, a motor stator and a motor. The stator insulating cover is used for application on the motor stator. The stator insulating cover includes a plurality of arc-shaped shells, and the plurality of arc-shaped shells each include outer insulating shells connected in sequence. The outer insulating part and the inner insulating part are located on the same side of the side insulating part and are spaced apart from each other; a plurality of shells are sequentially spliced ​​in the circumferential direction to form a circle and defines an annular accommodating cavity for accommodating the ends of the stator windings, the outer insulating parts of the plurality of arc-shaped casings are used to cover the outer end surfaces of the ends of the stator windings, and the side insulating parts are used to cover the outer circumference of the ends of the stator windings The inner insulating portion is used to cover the inner end face of the stator winding end. The stator insulating cover of the invention has good insulation protection effect, simple structure and convenient manufacture, can effectively improve the production efficiency of the motor stator, and at the same time can effectively reduce the end size of the stator winding, reduce the production cost, and is beneficial to the miniaturization of the motor.

The invention discloses a flying wheel battery with a dual-flywheel structure. The exterior of the axial middle of a rotary shaft is coaxially sleeved with an axial winding structure with a gap; flying wheels, which are coaxially and fixedly arranged on the rotary shaft in a sleeving manner, are arranged on the left and right sides of the axial winding structure respectively; the two flying wheelsare symmetrically arranged left and right relative to the axial winding structure; bearingless permanent magnet motors, which are coaxially and fixedly arranged on the rotary shaft in a sleeving manner, are arranged on the left side of the left-side flying wheel and on the right side of the right-side flying wheel respectively; the two bearingless permanent magnet motors are symmetrically arranged left and right relative to the axial winding structure; 12 circular annular grooves are uniformly formed in the plate surfaces on the left and right sides of a circular plate iron core of the axialwinding structure in the circumferential direction; central cylinders are all wound with axial winding coils; inner and outer circular annular grooves are formed in the wheel surfaces on one sties ofthe flying wheels; annular permanent magnets are embedded in the corresponding circular annular grooves; by adopting one axial winding structure, the axial movement of the rotary shaft is limited; andcompared with a single-fly-wheel structured flying wheel battery with the same radius, the rotational inertia of the flying wheel battery with the dual-flywheel structure is two times of that of thesingle-fly-wheel structured flying wheel battery, so that the flying wheel battery with the dual-flywheel structure is higher in energy storage.