CA2531545A1 - Two-phase brushless dc motor - Google Patents

Two-phase brushless dc motor Download PDF

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Publication number
CA2531545A1
CA2531545A1 CA002531545A CA2531545A CA2531545A1 CA 2531545 A1 CA2531545 A1 CA 2531545A1 CA 002531545 A CA002531545 A CA 002531545A CA 2531545 A CA2531545 A CA 2531545A CA 2531545 A1 CA2531545 A1 CA 2531545A1
Authority
CA
Canada
Prior art keywords
motor
poles
winding
phase
present
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.)
Granted
Application number
CA002531545A
Other languages
French (fr)
Other versions
CA2531545C (en
Inventor
Young-Chun Jeung
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2531545A1 publication Critical patent/CA2531545A1/en
Application granted granted Critical
Publication of CA2531545C publication Critical patent/CA2531545C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent 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
    • H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles

Abstract

The present invention relates to a two-phase brushless DC
motor which can increase a pemerance coefficient of a rotor to the maximum to thereby improve efficiency and starting feature of the motor, and to reduce torque ripple and noise thereof. The brushless motor of the present invention comprises a two-phase winding stator having 4 × n winding poles and auxiliary poles provided between the winding poles, and a rotor constituted by 6 × n permanent magnet rotating poles having identical divided angle. The two-phase brushless motor of the present invention can be driven by a control device for the two-phase motor which can transform electric power and rectify electronically.

Claims (3)

1. A two-phase brushless DC motor comprising:
a two-phase winding stator having 4 × n winding poles and auxiliary poles provided between the respective winding poles;
and a rotor constituted by 6 × n permanent magnet rotating poles having identical divided angle.
2. The motor of Claim 1, wherein the winding pole of the stator corresponds to a surface of the permanent magnet rotating pole of the rotor.
3. The motor of Claim 1 of Claim 2, wherein the peripheral lengths of the auxiliary poles are determined in consideration of the space for inserting coils which will be wound around the winding pole within the marginal angle formed between the winding poles.
CA2531545A 2005-04-29 2005-12-23 Two-phase brushless dc motor Expired - Fee Related CA2531545C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050035861A KR100653434B1 (en) 2005-04-29 2005-04-29 Brushless DC motor
KR10-2005-035861 2005-04-29

Publications (2)

Publication Number Publication Date
CA2531545A1 true CA2531545A1 (en) 2006-10-29
CA2531545C CA2531545C (en) 2012-05-29

Family

ID=37233777

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2531545A Expired - Fee Related CA2531545C (en) 2005-04-29 2005-12-23 Two-phase brushless dc motor

Country Status (4)

Country Link
US (3) US8004141B2 (en)
KR (1) KR100653434B1 (en)
CA (1) CA2531545C (en)
TW (1) TWI311002B (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN112491229A (en) * 2020-12-31 2021-03-12 山东理工大学 Variable magnetic flux hybrid excitation permanent magnet vernier motor for electric automobile

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KR20060115930A (en) 2006-11-13
CA2531545C (en) 2012-05-29
US20120228980A1 (en) 2012-09-13
KR100653434B1 (en) 2006-12-01
US20060244333A1 (en) 2006-11-02
TWI311002B (en) 2009-06-11
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US8004141B2 (en) 2011-08-23
US8183733B2 (en) 2012-05-22

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