CN114069999A - Parallel shaft type dual-rotor permanent magnet synchronous motor structure - Google Patents

Parallel shaft type dual-rotor permanent magnet synchronous motor structure Download PDF

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Publication number
CN114069999A
CN114069999A CN202111541130.2A CN202111541130A CN114069999A CN 114069999 A CN114069999 A CN 114069999A CN 202111541130 A CN202111541130 A CN 202111541130A CN 114069999 A CN114069999 A CN 114069999A
Authority
CN
China
Prior art keywords
rotor
parallel
permanent magnet
motor
stator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111541130.2A
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Chinese (zh)
Inventor
戈宝军
姜汉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN202111541130.2A priority Critical patent/CN114069999A/en
Publication of CN114069999A publication Critical patent/CN114069999A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/278—Surface mounted magnets; Inset magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention provides a parallel shaft type double-rotor permanent magnet synchronous motor structure, and belongs to the technical field of motor structures. The shaft-parallel type double-rotor motor is composed of a stator part and a rotor part. The stator portion includes: the stator comprises a stator core, a left stator winding and a right stator winding; the rotor portion includes: the permanent magnet, left rotor core, right rotor core, left side pivot, right side pivot. The motor adopts a double-rotor structure, the stator winding adopts a single-layer winding, the windings on two sides are distributed symmetrically with the central axis of the parallel connection area, and the polarities of the permanent magnets on the two rotors are distributed oppositely with the central axis of the parallel connection area. The left and right rotors generate torque and rotating speed with same size but opposite directions, and can replace a gear transmission structure in parallel opposite driving equipment to realize parallel opposite driving function.

Description

Parallel shaft type dual-rotor permanent magnet synchronous motor structure
Technical Field
The invention relates to a parallel shaft type double-rotor permanent magnet synchronous motor structure, and belongs to the technical field of motor structures.
Background
Since the appearance of motors, people find a mutually efficient matched bridge in the interconversion between electric energy and mechanical energy, but different requirements are provided for motor structures in different application occasions, and a motor is frequently used in traditional parallel counter-driving equipment such as a double-screw compressor and the like to drive double shafts to rotate in a mutually matched mode through a gear transmission structure so as to realize a parallel counter-driving function.
Disclosure of Invention
The invention aims to provide a parallel shaft type double-rotor permanent magnet synchronous motor structure, so as to save a gear transmission structure in the traditional parallel counter drive equipment, reduce the volume and weight of the equipment and reduce the maintenance cost of the equipment.
In order to achieve the purpose, the invention adopts the following technical scheme: a shaft-combining type double-rotor permanent magnet synchronous motor structure is provided, and a stator part comprises: stator core, left side stator winding, right side stator winding. The stator core used by the motor is different from the traditional motor core structure and is in an infinity shape; the windings on the two sides are symmetrically distributed about the central axis of the parallel connection area, the windings on the two sides are arranged in a consistent manner, but in order to reduce the mutual influence of magnetic fields generated by the windings on the two sides, the windings on the left side and the right side independently supply power.
As an improvement of the technical scheme, rotor structures on the left side and the right side are arranged in a stator core cavity, the rotor structures on the two sides are respectively 8 permanent magnets which are 9mm thick and occupy 34 degrees of circumferential angle and are attached to the rotor core, and the polarities of the permanent magnets on the rotors on the two sides are oppositely distributed relative to the central axis of the splicing region. .
The parallel-shaft type double-rotor permanent magnet synchronous motor structure can replace the gear transmission and structure in the traditional parallel counter-drive equipment, reduce the volume and weight of the equipment and reduce the maintenance cost of the equipment.
Drawings
Fig. 1 is a schematic diagram of a structure of a parallel shaft type dual-rotor permanent magnet synchronous motor of the invention.
Fig. 2 is a schematic view of a stator structure.
FIG. 3 is a schematic diagram of a parallel connection region.
Fig. 4 is a schematic structural view of the left and right rotors.
Shown in the figure: 1. a stator core; 2. a left rotating shaft; 3. a left rotor core; 4. a right rotating shaft; 5. a right rotor core; 6. and a splicing region central axis.
Detailed Description
The present invention will be further described with reference to specific embodiments in order to achieve an understandable effect of technical means, creation features, effects and requirements of the present invention.
Referring to the attached drawing 1, the invention provides a parallel shaft type dual-rotor permanent magnet synchronous motor, which is characterized in that: an infinite stator structure, a parallel connection zone structure and a left and right double-rotor structure.
The structure of the stator is shown in figure 2, a stator core is in an infinity shape, a stator winding is divided into a left part and a right part, the left side winding and the right side winding both adopt single-layer windings, the windings are arranged in a consistent manner, and the left side winding and the right side winding independently supply power.
The splicing region structure is shown in figure 3, and the splicing region structure exists in the central area of the motor, and the motor is symmetrical about the central axis of the splicing region.
The left and right double-rotor structures refer to the attached figure 4, the left and right sides are respectively provided with 8 permanent magnet bodies with the thickness of 9mm and the occupied central angle of 34 degrees, the permanent magnet bodies are attached to the iron cores of the rotors with the same size, and the polarities of the permanent magnet bodies on the rotors at the two sides are distributed in an opposite way by the central axis of the parallel connection area.
The present embodiments are merely exemplary of the present patent and do not limit the scope of the patent, and those skilled in the art may make modifications to the parts thereof without departing from the spirit and scope of the patent.

Claims (4)

1. The utility model provides a shaft formula birotor PMSM structure which characterized in that: the motor adopts a special stator core structure, a parallel connection area structure exists in the central area of the motor, and rotor structures on the left side and the right side exist in a stator core cavity.
2. The parallel-shaft type dual-rotor permanent magnet synchronous motor structure of claim 1, wherein: the infinity-shaped stator core structure is adopted, the left side winding and the right side winding adopt single-layer windings and are symmetrically distributed along the central axis of the parallel connection region, and the left side winding and the right side winding independently supply power.
3. The parallel-shaft type dual-rotor permanent magnet synchronous motor structure of claim 1, wherein: and a splicing area structure exists in the central area of the motor, and the motor structure is symmetrical about the central axis of the splicing area.
4. The parallel-shaft type dual-rotor permanent magnet synchronous motor structure of claim 1, wherein: the rotors on the left side and the right side are respectively pasted on the rotor iron core by 8 permanent magnet bodies with the thickness of 9mm and the occupied central angle of 34 degrees, and the polarities of the permanent magnets on the rotors on the two sides are oppositely distributed relative to the central axis of the splicing region.
CN202111541130.2A 2021-12-16 2021-12-16 Parallel shaft type dual-rotor permanent magnet synchronous motor structure Pending CN114069999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111541130.2A CN114069999A (en) 2021-12-16 2021-12-16 Parallel shaft type dual-rotor permanent magnet synchronous motor structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111541130.2A CN114069999A (en) 2021-12-16 2021-12-16 Parallel shaft type dual-rotor permanent magnet synchronous motor structure

Publications (1)

Publication Number Publication Date
CN114069999A true CN114069999A (en) 2022-02-18

Family

ID=80229570

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111541130.2A Pending CN114069999A (en) 2021-12-16 2021-12-16 Parallel shaft type dual-rotor permanent magnet synchronous motor structure

Country Status (1)

Country Link
CN (1) CN114069999A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115313789A (en) * 2022-08-31 2022-11-08 哈尔滨理工大学 Stator coupling area structure of radial double-parallel rotor motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115313789A (en) * 2022-08-31 2022-11-08 哈尔滨理工大学 Stator coupling area structure of radial double-parallel rotor motor
CN115313789B (en) * 2022-08-31 2024-04-30 哈尔滨理工大学 Stator coupling area structure of radial double-parallel rotor motor

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