KR20120027642A - High efficiency magnetizing yoke - Google Patents

High efficiency magnetizing yoke Download PDF

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Publication number
KR20120027642A
KR20120027642A KR1020100089341A KR20100089341A KR20120027642A KR 20120027642 A KR20120027642 A KR 20120027642A KR 1020100089341 A KR1020100089341 A KR 1020100089341A KR 20100089341 A KR20100089341 A KR 20100089341A KR 20120027642 A KR20120027642 A KR 20120027642A
Authority
KR
South Korea
Prior art keywords
yoke
row
coil
high efficiency
magnetizing
Prior art date
Application number
KR1020100089341A
Other languages
Korean (ko)
Inventor
김경중
남승현
Original Assignee
주식회사 모아텍
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 주식회사 모아텍 filed Critical 주식회사 모아텍
Priority to KR1020100089341A priority Critical patent/KR20120027642A/en
Publication of KR20120027642A publication Critical patent/KR20120027642A/en

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Classifications

    • 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
    • H02K21/38—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary
    • H02K21/44—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/02—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type
    • H02K37/04—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type with rotors situated within the stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/163—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual reluctance motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/90—Specific system operational feature
    • Y10S388/905—Armature and field windings connected in series, i.e. series motor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high efficiency magnetizing yoke, wherein in a magnetizing yoke composed of radially arranged single row yoke teeth and two row yoke teeth positioned to correspond to the rear of the first row yoke teeth, the coils are serially arranged in a single row yoke value. It is wound on, and moved from the middle coil to the two-row yoke value and wound in series, so that the magnet magnetization amount is increased as the magnetizing pulse is applied to the magnet twice.

Description

High efficiency magnetized yoke {HIGH EFFICIENCY MAGNETIZING YOKE}

The present invention relates to a step motor, and more particularly to a magnetizing yoke of a step motor used to magnetize the magnet of the rotor.

As is well known, in a step motor, the excitation condition of the yoke of the stator covering the magnet of the rotor changes with respect to the input pulse signal, and the rotor rotates at a predetermined angle for each changing step cycle so as to rotate the output shaft. .

These step motors do not accumulate with a small angular error per step, so the response of start, stop, forward and reverse rotation is good, and the rotation speed is variable in proportion to the input frequency of the input pulse signal. Rotational speed control is possible.

Referring to FIG. 1, the magnet 10 of the small step motor as described above is inserted in the inner diameter portion of the magnetized yoke 20 having ten yoke teeth 21, and the yoke teeth 21. As the magnetization pulse is applied to the coil 22 wound in one row, the outer circumferential surface is magnetized into a plurality of N-pole and S-poles corresponding to each of the yoke values 21 of the magnetizing yoke 20 and bordering each other. .

In such a structure of the magnetizing yoke 20 and the connection method of the series coil 22 in one row, there is a limit in increasing the magnet magnetization amount when magnetizing.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to provide a high efficiency magnetizing yoke for a two-coil coil connection to increase the magnetization amount to the magnet.

As an example of the high efficiency magnetizing yoke according to the present invention, in a step motor, in a magnetizing yoke composed of one-row yoke teeth radially formed at regular intervals and two-row yoke teeth positioned to correspond to the rear of the first-row yoke teeth, respectively, Is wound one by one row of yoke values, moved from the middle coil to two rows of yoke values, and is sequentially wound. The coils are integrally wound on one row of yoke values and two rows of yoke values and insulated using insulating materials.

The high efficiency magnetizing yoke according to the present invention is a double coil winding of one row and two rows, and the magnet magnetization amount is increased as the magnetization pulse of the coil is applied to the magnet twice, so that the life of the magnetizing yoke is extended because a low voltage may be used for the coil. In addition, even if a low grade of magnet is used, the magnetization is good, thereby reducing the cost.

What has been described herein is just one embodiment for carrying out the high-efficiency magnetizing yoke according to the present invention, and the present invention is not limited to the present embodiment, and the subject matter of the present invention is claimed in the following claims. Without departing from the scope of the present invention, any person having ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

1 is a plan view of a conventional magnetized yoke
2 is a plan view of a high efficiency magnetizing yoke according to the present invention;
3 is a perspective view of a high efficiency magnetizing yoke according to the present invention;
4 is a circuit diagram of a high efficiency magnetizing yoke according to the present invention.

2, the high efficiency magnetizing yoke 50 according to the present invention is located so as to correspond to the ten one-row yoke teeth 52 formed radially at regular intervals and the rear of the one-row yoke teeth 52, respectively. It consists of ten two-row yoke teeth 55.

Referring to FIG. 3, the coil 53 is wound in series with a single row yoke value 52, and is moved from the middle coil 54 to a second row yoke value 55 to be wound in series. Since the coil 53 is a single strand, the coil wound on the first row yoke value 52 and the coil wound on the second row yoke value 55 are connected in series, and the circuit diagram thereof is as shown in FIG. 4.

The coil 53 is integrally wound around the first row of yoke teeth 52 and the second row of yoke teeth 55 and then insulated using an insulating material such as epoxy.

As the magnetizing pulse is applied to the magnet in a double manner in the structure of the magnetizing yoke 50 and the two-column series coil 53, the magnet magnetizing amount is increased.

Due to such a structure, the magnetization amount increases, so that a low voltage may be used for the coil 53, so that the life of the magnetizing yoke 50 is extended, and even though a magnet having a low grade is used, the magnetization is good. It will work.

Moreover, compared with the conventional single single-coil winding method, the experiment showed that the magnetization value was increased by about twice.

50: magnetized yoke 52: first row yoke
53: coil 54: middle coil
55: second row yoke

Claims (2)

In the step motor,
In a magnetized yoke consisting of a one-row yoke that is radially formed at regular intervals and a two-row yoke that is positioned to correspond to the rear of the first-row yoke, respectively, the coil is wound in series with one-row yoke, and in the middle coil, in two rows High efficiency magnetized yoke, characterized in that is moved to the yoke and wound in series.
The method of claim 1,
A high efficiency magnetizing yoke characterized in that the coil is wound integrally with the first and second row yoke values and insulated using an insulating material.
KR1020100089341A 2010-09-13 2010-09-13 High efficiency magnetizing yoke KR20120027642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100089341A KR20120027642A (en) 2010-09-13 2010-09-13 High efficiency magnetizing yoke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100089341A KR20120027642A (en) 2010-09-13 2010-09-13 High efficiency magnetizing yoke

Publications (1)

Publication Number Publication Date
KR20120027642A true KR20120027642A (en) 2012-03-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100089341A KR20120027642A (en) 2010-09-13 2010-09-13 High efficiency magnetizing yoke

Country Status (1)

Country Link
KR (1) KR20120027642A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018147610A1 (en) * 2017-02-13 2018-08-16 엘지이노텍 주식회사 Stator and motor comprising same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018147610A1 (en) * 2017-02-13 2018-08-16 엘지이노텍 주식회사 Stator and motor comprising same
US11095171B2 (en) 2017-02-13 2021-08-17 Lg Innotek Co., Ltd. Stator and motor comprising same
US11646610B2 (en) 2017-02-13 2023-05-09 Lg Innotek Co., Ltd. Stator and motor comprising same

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E902 Notification of reason for refusal
E601 Decision to refuse application