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CN-121984255-A - Disc type direct-drive motor

CN121984255ACN 121984255 ACN121984255 ACN 121984255ACN-121984255-A

Abstract

The invention relates to the field of disc motors, in particular to a disc direct-drive motor. The motor comprises two groups of symmetrically arranged motor shells, wherein rotating shafts are arranged in the two groups of motor shells, rotor mechanisms are arranged in the two groups of motor shells, and the rotor mechanisms are sleeved on the outer walls of the rotating shafts. According to the invention, the outside air is sucked at high speed by utilizing the plurality of groups of air guide blades distributed in the annular array in the air guide grooves, then the air flow is guided between the outer wall of the separation ring and the inner wall of the shell at high speed by the plurality of groups of air inlet through grooves on the two sides, then the high-speed air flow is guided into a specific channel in the stator mechanism through the plurality of groups of air guide through grooves for high-efficiency heat dissipation, and then the air flow is discharged through the plurality of groups of air discharge holes, so that the heat dissipation effect of the stator mechanism during working is improved, the heat dissipation mechanism for increasing extra power consumption is avoided while the linear speed of the edge of the rotor is utilized, and the heat loss of the disc type direct drive motor is reduced, and meanwhile, the energy saving effect is realized.

Inventors

  • ZHOU JIANHUA
  • ZHANG JIANHUA
  • FU FENGXI

Assignees

  • 常州多维电气股份有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (10)

  1. 1. The disc type direct-drive motor comprises two groups of motor shells which are symmetrically arranged, and is characterized in that a rotating shaft is arranged in the two groups of motor shells, a rotor mechanism is arranged in the two groups of motor shells, the rotor mechanism is sleeved on the outer wall of the rotating shaft, and a group of stator mechanisms are respectively arranged on the inner walls of one side, opposite to the motor shells, of the two groups of motor shells; The motor shell cover comprises a shell, wherein a separation ring is arranged in the shell; The rotor mechanism comprises laminated silicon steel sheets, wherein the side view section of the laminated silicon steel sheets is in a circular shape, a plurality of groups of permanent magnets are symmetrically distributed on the two side walls of the laminated silicon steel sheets in an annular array, and a rotating shaft connecting assembly is arranged on the inner wall of the laminated silicon steel sheets; the outer wall of the first connecting ring is sleeved with an air guide ring, the outer wall of the air guide ring is provided with air guide grooves, a plurality of groups of air guide blades are distributed in the air guide grooves in an annular array, a plurality of groups of air inlet through grooves are distributed in an annular array on the inner walls of the two sides of the air guide grooves symmetrically, and one end of each group of separation rings extends into a gap between the laminated silicon steel sheets and the air guide ring.
  2. 2. A disc type direct drive motor according to claim 1, wherein one set of motor housing covers is provided with a mounting plate on one side wall far away from the other set of motor housing covers, a set of support bearings are respectively arranged at the centers of the opposite side walls of the two sets of motor housing covers, two ends of the rotating shaft are respectively connected with the corresponding set of support bearings, and a plurality of sets of air inlet mechanisms are distributed on the outer walls of the two sets of motor housing covers in an annular array.
  3. 3. The disc-type direct-drive motor of claim 2, wherein the inner wall of the separation ring is provided with a plurality of groups of air guide through grooves in an annular array distribution mode, the outer wall of the shell is provided with a plurality of groups of air inlet through grooves, and the inner wall of one side of the shell is provided with a plurality of groups of air exhaust holes in an annular array distribution mode.
  4. 4. The disc type direct-drive motor of claim 2, wherein the air inlet mechanism comprises a connecting plate, an air inlet through groove II is formed in the connecting plate, a dustproof filter screen is arranged at the top of the air inlet through groove II, a movable baffle is arranged at the bottom of the air inlet through groove II, a plurality of groups of air inlet through grooves III are formed in the movable baffle at equal intervals, and each group of air inlet through grooves III is movably communicated with the corresponding two groups of air inlet through grooves I.
  5. 5. A disc type direct-drive motor as defined in claim 4, wherein a group of movable rods are respectively arranged at two ends of the top of the movable baffle, a group of sliding blocks are respectively arranged at two ends of each group of movable rods, two groups of sliding grooves are symmetrically formed in inner walls of two sides of the air inlet through groove II, each group of sliding blocks are slidably connected in a corresponding group of sliding grooves, a group of reset springs and a group of electromagnets are respectively arranged at two ends of each group of sliding grooves, the other end of each reset spring is connected with a corresponding group of sliding blocks, and each electromagnet is magnetically connected with a corresponding group of sliding blocks.
  6. 6. The disc type direct-drive motor is characterized in that the rotating shaft connecting assembly comprises an expansion sleeve, positioning rings are sleeved on the outer walls of the expansion sleeve, a plurality of groups of threaded rods are distributed on the outer walls of the positioning rings in an annular array mode, a group of adjusting nuts are connected to the outer walls of each group of threaded rods in a threaded mode, and one end, far away from the positioning rings, of each group of adjusting nuts is connected with a group of connecting rings in a rotating mode.
  7. 7. A disc type direct drive motor as set forth in claim 6, wherein two groups of support rods are symmetrically and limitedly connected to two side walls of each second connecting ring in a rotating mode, one ends, away from the second connecting rings, of the corresponding two groups of support rods are hinged with one group of movable support plates, one end of each group of movable support plates is hinged with one group of fixed support plates in a damping mode, and each group of movable support plates is movably clamped with an adjacent group of fixed support plates.
  8. 8. A disc type direct-drive motor as defined in claim 2, wherein the stator mechanism comprises an iron core positioning plate, the side view cross section of the iron core positioning plate is circular, a plurality of groups of isolation grooves are distributed on one side wall of the iron core positioning plate, which is close to the rotor mechanism, in an annular array, a group of stator assemblies are arranged in each group of isolation grooves, a plurality of groups of limiting conductive holes are arranged on the inner wall of one side, which is far away from the rotor mechanism, of each isolation groove, an air guide cavity is arranged in the iron core positioning plate, and a plurality of groups of air guide through grooves are distributed on the inner wall of one side, which is far away from the central axis of the iron core positioning plate, in an annular array.
  9. 9. The disc-type direct-drive motor of claim 8, wherein each group of second air guide grooves is communicated with a corresponding group of first air guide grooves, a plurality of groups of guide plates are distributed in an annular array in the air guide cavity, the side view cross section of each group of guide plates is arc-shaped, a plurality of groups of second exhaust holes are distributed in an annular array on the inner wall of one side of the air guide cavity, which is far away from the rotor mechanism, each group of second exhaust holes are communicated with a corresponding group of first exhaust holes, each group of second air guide grooves face to the center of a corresponding group of guide plates, and each group of first exhaust holes are located between two adjacent groups of guide plates.
  10. 10. A disc type direct-drive motor according to claim 2, wherein the stator assembly comprises a stator core, a stator winding is arranged on the outer wall of the stator core, an insulating plate is arranged on one side wall of the stator core, a plurality of groups of limiting conductive posts are arranged on one side wall of the insulating plate, which is far away from the stator core, of the stator core, the stator winding is electrically connected with the corresponding groups of limiting conductive posts, and each group of limiting conductive posts movably penetrates through the corresponding group of limiting conductive holes.

Description

Disc type direct-drive motor Technical Field The invention belongs to the technical field of disc motors, and particularly relates to a disc type direct-drive motor. Background Disk motors are widely used in home appliances and industrial drive motors in their flattened form and with a high torque density. According to the prior art, chinese patent publication No. CN112821703B, publication No. 2022-12-27 discloses a disk motor, which comprises a base, a stator, a rotor and an encoder, wherein the stator is connected with the base, the stator comprises a plurality of coils, the coils are distributed along the circumferential direction of the stator, the rotor comprises a plurality of magnets, the magnets are distributed along the circumferential direction of the rotor, the polarities of magnetic poles of adjacent magnets facing the stator are different along the circumferential direction of the rotor, the magnets are positioned on one side of the coils along the axial direction of the rotor, and the encoder connected with the rotor is used for detecting the angular displacement of the rotor. Said invention provides a disk motor, its whole height is low and control accuracy is high. The disc motor still has the following drawbacks: the stator of the existing disc motor is mostly of a single-side mounting and flat structure, the coil is wound on the iron core, heat is difficult to conduct outwards, heat dissipation mainly depends on natural heat dissipation of a stator substrate, convection heat exchange is extremely weak, and therefore heat loss of the disc motor is improved. Disclosure of Invention The invention provides a disc type direct-drive motor, which comprises two groups of motor shells which are symmetrically arranged, wherein rotating shafts are arranged in the two groups of motor shells; the motor housing covers are internally provided with rotor mechanisms, the rotor mechanisms are sleeved on the outer wall of the rotating shaft, and the inner walls of one side opposite to the motor housing covers are respectively provided with a group of stator mechanisms; The motor shell cover comprises a shell, wherein a separation ring is arranged in the shell; The rotor mechanism comprises laminated silicon steel sheets, wherein the side view section of the laminated silicon steel sheets is in a circular shape, a plurality of groups of permanent magnets are symmetrically distributed on the two side walls of the laminated silicon steel sheets in an annular array, and a rotating shaft connecting assembly is arranged on the inner wall of the laminated silicon steel sheets; the outer wall of the first connecting ring is sleeved with an air guide ring, the outer wall of the air guide ring is provided with air guide grooves, a plurality of groups of air guide blades are distributed in the air guide grooves in an annular array, a plurality of groups of air inlet through grooves are distributed in an annular array on the inner walls of the two sides of the air guide grooves symmetrically, and one end of each group of separation rings extends into a gap between the laminated silicon steel sheets and the air guide ring. Further, one side wall of one group of motor housing covers, which is far away from the other group of motor housing covers, is provided with a mounting plate, the centers of the opposite side walls of the two groups of motor housing covers are respectively provided with a group of support bearings, two ends of the rotating shaft are respectively connected with the corresponding group of support bearings, and the outer walls of the two groups of motor housing covers are distributed in an annular array and are provided with a plurality of groups of air inlet mechanisms. Further, a plurality of groups of air guide through grooves are distributed on the inner wall of the separation ring in an annular array, a plurality of groups of air inlet through grooves are formed on the outer wall of the shell, and a plurality of groups of air exhaust holes are distributed on the inner wall of one side of the shell in an annular array. The air inlet mechanism comprises a connecting plate, wherein an air inlet through groove II is formed in the connecting plate, a dust-proof filter screen is arranged at the top of the air inlet through groove II, a movable baffle is arranged at the bottom of the air inlet through groove II, a plurality of groups of air inlet through grooves III are formed in the movable baffle at equal intervals, and each group of air inlet through grooves III is movably communicated with the corresponding two groups of air inlet through grooves I. Further, two ends of the top of the movable baffle are respectively provided with a group of movable rods, two ends of each group of movable rods are respectively provided with a group of sliding blocks, two groups of sliding grooves are symmetrically formed in the inner walls of two sides of the air inlet through groove II, each group of sliding blocks are