KR20020007493A - Switched reluctance motor - Google Patents

Switched reluctance motor Download PDF

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Publication number
KR20020007493A
KR20020007493A KR1020000040515A KR20000040515A KR20020007493A KR 20020007493 A KR20020007493 A KR 20020007493A KR 1020000040515 A KR1020000040515 A KR 1020000040515A KR 20000040515 A KR20000040515 A KR 20000040515A KR 20020007493 A KR20020007493 A KR 20020007493A
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KR
South Korea
Prior art keywords
rotor
shaft
position detecting
detecting member
fixed
Prior art date
Application number
KR1020000040515A
Other languages
Korean (ko)
Inventor
강용호
Original Assignee
구자홍
엘지전자주식회사
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Publication date
Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR1020000040515A priority Critical patent/KR20020007493A/en
Publication of KR20020007493A publication Critical patent/KR20020007493A/en

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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
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • 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
    • H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
    • H02K1/246—Variable reluctance rotors
    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/04—Synchronous motors for single-phase current
    • H02K19/06—Motors having windings on the stator and a variable-reluctance soft-iron rotor without windings, e.g. inductor motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts

Abstract

PURPOSE: An SR(switched reluctance) motor is provided to reduce a cost by integrally forming a rotor and a position detecting member that detects a position of the rotor. CONSTITUTION: A motor(50) has a shaft(51). A rotor(53) of magnetic metal material is press fit to a central part of the shaft(51) to be fixed. A stator is installed adjacent to an outer circumference of the rotor(53). When a current is applied to the stator, the rotor(53) is rotated by an operation between the stator and the rotor(53) to rotate the shaft(51). A plurality of through holes(53a) are formed on the rotor(53). A position detecting member(60) is integrally formed with the rotor(53) to detect a position of the rotor(53). A passing part(61) passes through the through hole(53a). A fixing part(63) is contacted with both side surfaces of the rotor(53) and fixed to the shaft(51). A position deciding part(65) decides a position where a bearing(55) is installed. A plurality of slits(63a) are formed on an outer circumference of the fixing part(63) at predetermined intervals. A sensor senses positions of the slits(63a) and detects a position of the rotor. Since the position detecting member and the rotor are integrally fixed to the shaft, the position detecting member is moved together with the rotor.

Description

에스알모터 {SWITCHED RELUCTANCE MOTOR}SL Motor {SWITCHED RELUCTANCE MOTOR}

본 발명은 에스알모터에 관한 것으로, 더 상세하게는 축에 압입되는 회전자와 회전자의 위치를 검출하는 위치검출부재를 일체형으로 마련한 에스알모터에 관한 것이다.The present invention relates to an SR motor, and more particularly, to an SR motor provided with an integrated position detecting member for detecting the position of the rotor and the rotor pressed into the shaft.

종래의 에스알모터를 도 1을 참조하여 설명한다. 도 1은 종래의 에스알모터의 축과 회전자의 구조를 보인 도이다.A conventional SAL motor will be described with reference to FIG. 1. 1 is a view showing the structure of the shaft and the rotor of the conventional RAL motor.

도시된 바와 같이, 축(11)에 금속재의 회전자(13)가 압입된다. 회전자(13)의 일측면과 접촉되게 고정링(15)이 축(11)에 설치되고, 고정링(15)과 접촉되게 위치검출판(17)이 축(11)에 설치된다. 고정링(15)은 위치검출판(17)의 설치위치를 결정하고, 위치검출판(17)은 고정자(미도시)에 대한 회전자(13)의 위치를 검출한다. 그리고, 축(11)을 지지하는 베어링(19)이 축(11)의 양측에 설치되고, 베어링(19)은 축(11)에 압입된 C링(21)에 의하여 위치가 결정된다.As shown, a rotor 13 of metal material is pressed into the shaft 11. The fixing ring 15 is installed on the shaft 11 to be in contact with one side of the rotor 13, and the position detection plate 17 is installed on the shaft 11 to be in contact with the fixing ring 15. The fixing ring 15 determines the installation position of the position detecting plate 17, and the position detecting plate 17 detects the position of the rotor 13 with respect to the stator (not shown). And the bearing 19 which supports the shaft 11 is provided in the both sides of the shaft 11, and the bearing 19 is determined by the C ring 21 press-fitted to the shaft 11. As shown in FIG.

상기와 같은 종래의 모터의 구조는, 축(11)에 회전자(13), 고정링(15), 위치검출판(17) 및 C링(21)이 고정되어 있다. 그런데, 각 부품들이 별도의 공법으로 축(11)에 고정되므로 제조공정이 복잡하여 원가가 상승하는 단점이 있다.In the structure of the conventional motor as described above, the rotor 13, the fixed ring 15, the position detecting plate 17, and the C ring 21 are fixed to the shaft 11. However, since each part is fixed to the shaft 11 by a separate method, the manufacturing process is complicated and the cost increases.

또한, 회전자(13)와 회전자(13)의 위치를 검출하는 위치검출판(17)이 축(11)에 별도로 고정된다. 그러므로, 설정된 위치에 회전자(13)와 위치검출판(17)을 고정하여도, 축(11)이 회전되면 회전자(13)와 위치검출판(17)은 각각 독립적으로 유동된다. 이로인해, 위치검출판(17)을 통하여 회전자(13)의 위치를 정확하게 검출하기 어려운 단점이 있다.In addition, a position detecting plate 17 for detecting positions of the rotor 13 and the rotor 13 is separately fixed to the shaft 11. Therefore, even if the rotor 13 and the position detection plate 17 are fixed at the set position, when the shaft 11 is rotated, the rotor 13 and the position detection plate 17 respectively flow independently. As a result, it is difficult to accurately detect the position of the rotor 13 through the position detection plate 17.

또한, 회전자(13)의 위치를 검출하기 위하여 위치검출판(17)의 외주면에 소정간격으로 다수의 홈(17a)을 형성한다. 그런데, 얇은 위치검출판(17)의 구조상 홈(17a)을 정확하게 소정간격으로 형성하기 어려운 단점이 있다.In addition, in order to detect the position of the rotor 13, a plurality of grooves 17a are formed on the outer circumferential surface of the position detecting plate 17 at predetermined intervals. However, it is difficult to form the grooves 17a precisely at predetermined intervals due to the structure of the thin position detecting plate 17.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창작된 것으로, 본 발명의 목적은 회전자와 회전자의 위치를 검출하는 위치검출부재를 일체로 형성하여 원가를 절감할 수 있는 에스알모터를 제공함에 있다.The present invention was created to solve the above problems, and an object of the present invention is to provide an R-motor that can reduce the cost by integrally forming a position detecting member for detecting the position of the rotor and the rotor. .

도 1은 종래의 에스알모터의 축과 회전자의 구조를 보인 도.1 is a view showing the structure of the shaft and the rotor of the conventional RAL motor.

도 2는 본 발명의 일 실시예에 따른 에스알모터의 축과 회전자의 구조를 보인 도.Figure 2 is a view showing the structure of the shaft and rotor of the SAL motor according to an embodiment of the present invention.

도 3은 본 발명의 다른 실시예에 따른 에스알모터의 축과 회전자의 구조를 보인 도.Figure 3 is a view showing the structure of the shaft and rotor of the SAL motor according to another embodiment of the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

51 : 축 53 : 회전자51: axis 53: rotor

60 : 위치검출부재60: position detecting member

상기 목적을 달성하기 위한 본 발명에 따른 에스알모터는, 축; 상기 축에 고정된 회전자; 그리고, 상기 회전자와 일체로 마련되어 상기 축에 고정되며 상기 회전자의 위치를 검출하는 위치검출부재를 구비한다.SAL motor according to the present invention for achieving the above object, the shaft; A rotor fixed to the shaft; And a position detecting member provided integrally with the rotor and fixed to the shaft to detect the position of the rotor.

이하, 첨부한 도면을 참조하여 본 발명의 일 실시예에 따른 에스알모터를 상세히 설명한다. 도 2는 본 발명의 일 실시예에 따른 에스알모터의 축과 회전자의 구조를 보인 도이다.Hereinafter, an SAL motor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 2 is a view showing the structure of the shaft and the rotor of the SAL motor according to an embodiment of the present invention.

도시된 바와 같이, 모터(50)는 축(51)을 가진다. 축(51)의 중앙부에는 자성을 띈 금속재의 회전자(53)가 압입되어 고정되고, 회전자(53)의 외주면과 인접되게 고정자(미도시)가 마련된다. 상기 고정자에 전류가 인가되면, 상기 고정자와 회전자(53)와의 작용에 의하여 회전자(53)가 회전되면서 축(51)을 회전시킨다.As shown, the motor 50 has an axis 51. In the central portion of the shaft 51, a magnetic rotor 53 made of magnetic metal is press-fitted and fixed, and a stator (not shown) is provided adjacent to the outer circumferential surface of the rotor 53. When a current is applied to the stator, the rotor 53 is rotated by the action of the stator and the rotor 53 to rotate the shaft 51.

본 실시예에 따른 회전자(53)에는 관통공(53a)이 다수개 형성되고, 축(51)에는 회전자(53)의 위치를 검출하기 위한 위치검출부재(60)가 회전자(53)와 일체로 마련된다.A plurality of through holes 53a are formed in the rotor 53 according to the present embodiment, and the position detecting member 60 for detecting the position of the rotor 53 is formed in the shaft 51 by the rotor 53. It is provided integrally with.

위치검출부재(60)는 관통공(53a)을 관통하는 관통부(61)와, 관통부(61)의 양단부에 형성되어 회전자(53)의 양측면과 접촉함과 동시에 축(51)에 고정되는 고정부(63) 및 고정부(63)의 양단부에서 연장ㆍ형성되어 베어링(55)의 설치 위치를 결정하는 위치결정부(65)를 가진다. 고정부(63)의 외주면에는 다수의 슬릿(63a)이 소정 간격으로 형성되고, 슬릿(63a)의 위치를 센서(미도시)가 감지하여 회전자(53)의위치를 감지한다. 그런데, 위치검출부재(60)와 회전자(53)는 일체로 축(51)에 고정되어 있으므로, 회전자(53)와 동일하게 위치검출부재(60)도 유동한다. 그러므로, 위치검출부재(60)를 통하여 검출되는 회전자(53)의 위치는 정확하다. 그리고, 베어링(55)은 위치결정부(65)의 단면과 접촉되게 축(51)의 양단부측에 설치되어 축(51)이 원활하게 회전되도록 지지한다.The position detecting member 60 is formed at both ends of the through part 61 and the through part 61a through the through hole 53a, and is fixed to the shaft 51 while being in contact with both side surfaces of the rotor 53. And a positioning portion 65 which extends and is formed at both ends of the fixing portion 63 to determine the installation position of the bearing 55. A plurality of slits 63a are formed at predetermined intervals on the outer circumferential surface of the fixing part 63, and a sensor (not shown) senses the position of the slit 63a to sense the position of the rotor 53. However, since the position detecting member 60 and the rotor 53 are fixed to the shaft 51 integrally, the position detecting member 60 also flows in the same manner as the rotor 53. Therefore, the position of the rotor 53 detected through the position detecting member 60 is correct. In addition, the bearing 55 is provided on both end portions of the shaft 51 to be in contact with the end face of the positioning portion 65 to support the shaft 51 to rotate smoothly.

본 실시예에 따른 회전자(53)와 위치검출부재(60)를 결합하는 방법을 설명한다.A method of coupling the rotor 53 and the position detecting member 60 according to the present embodiment will be described.

축(51)에 관통공(53a)이 형성된 회전자(53)을 압입한 후, 소정 형상의 금형(미도시)속에 넣는다. 그후, 합성수지를 상기 금형속으로 주입하면, 회전자(53)와 일체로 결합됨과 동시에 축(51)에 고정되는 위치검출부재(60)가 사출되는 것이다.After the rotor 53 in which the through hole 53a is formed in the shaft 51 is press-fitted, it is put in the metal mold | die (not shown) of a predetermined shape. Thereafter, when the synthetic resin is injected into the mold, the position detecting member 60 fixed to the shaft 51 while being integrally coupled with the rotor 53 is ejected.

도 3은 본 발명의 다른 실시예에 따른 에스알모터의 축과 회전자의 구조를 보인 도로써, 도 2와의 차이점만을 설명한다.3 is a view showing the structure of the shaft and the rotor of the SAL motor according to another embodiment of the present invention, it will be described only the difference from FIG.

위치결정부(65)의 양측 단부(端部)에는 단(段)이진 단면(段面)(65a)이 형성된다. 단면(65a)은 베어링(55)의 형상과 대응되게 형성되어 베어링(55)을 견고하게 지지한다.End edges 65a are formed at both end portions of the positioning portion 65. The cross section 65a is formed to correspond to the shape of the bearing 55 to firmly support the bearing 55.

이상에서 설명하듯이, 본 발명에 따른 에스알모터는 위치검출부재가 사출에 의하여 회전자와 일체로 제작되므로 작업공정이 간단하다. 그러므로, 원가가 절감된다.As described above, the RAL motor according to the present invention is simple because the position detection member is manufactured integrally with the rotor by injection. Therefore, the cost is reduced.

또, 위치검출부재가 회전자와 일체로 마련되고, 위치검출부재에 베어링의 위치를 결정하는 위치결정부가 마련된다. 그러므로, 위치검출부재 및 베어링을 지지하기 위한 별도의 부품이 필요없게 되어 더욱 원가가 절감된다.Further, the position detecting member is provided integrally with the rotor, and the position detecting member is provided with a positioning portion for determining the position of the bearing. Therefore, there is no need for separate parts for supporting the position detecting member and the bearing, further reducing the cost.

또, 회전자가 유동하면 위치검출부재도 동일하게 유동하므로, 위치검출부재를 통하여 검출되는 회전자의 위치는 정확하다. 그러므로, 모터의 신뢰성이 향상된다.In addition, since the position detecting member flows in the same way when the rotor flows, the position of the rotor detected through the position detecting member is accurate. Therefore, the reliability of the motor is improved.

이상에서는, 본 발명의 일 실시예에 따라 본 발명을 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 변경 및 변형한 것도 본 발명에 속함은 당연하다.In the above, the present invention has been described in accordance with one embodiment of the present invention, but those skilled in the art to which the present invention pertains have been changed and modified without departing from the spirit of the present invention. Of course.

Claims (3)

축;shaft; 상기 축에 고정된 회전자; 그리고,A rotor fixed to the shaft; And, 상기 회전자와 일체로 마련되어 상기 축에 고정되며 상기 회전자의 위치를 검출하는 위치검출부재를 구비하는 것을 특징으로 하는 에스알 모터.An SR motor, which is provided integrally with the rotor and is fixed to the shaft, the position detecting member detecting the position of the rotor. 제 1 항에 있어서, 상기 회전자에는 관통공이 형성되고,According to claim 1, The rotor is formed with a through hole, 상기 위치검출부재는,The position detecting member, 상기 관통공을 관통하는 관통부와,A through part penetrating the through hole; 상기 관통부의 양단부에 각각 형성되어 상기 회전자의 양측면과 접촉함과 동시에 상기 축에 고정되며, 외주면에는 소정간격으로 다수의 슬릿이 형성된 고정부 와,Fixed parts formed at both ends of the through part and fixed to the shaft while being in contact with both side surfaces of the rotor, and having a plurality of slits formed at predetermined intervals on an outer circumferential surface thereof; 상기 고정부의 양측단에서 연장ㆍ형성되어 베어링의 설치 위치를 결정하는 위치결정부를 가지는 것을 특징으로 하는 에스알 모터.An SR motor, comprising: a positioning unit extending and formed at both ends of the fixing unit to determine an installation position of a bearing. 제 2 항에 있어서,The method of claim 2, 상기 돌출부는 축에 압입되어 고정되며, 상기 돌출부의 단부는 단(段)이진 것을 특징으로 하는 에스알 모터.The protrusion is pressed into the shaft and fixed, the end of the protrusion is characterized in that the SR motor.
KR1020000040515A 2000-07-14 2000-07-14 Switched reluctance motor KR20020007493A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101066522B1 (en) * 2005-03-04 2011-09-21 주식회사 동서전자 Sr motor
US8866355B2 (en) 2011-09-28 2014-10-21 Samsung Electro-Mechanics Co., Ltd. Switched reluctance motor
CN105024514A (en) * 2015-06-30 2015-11-04 安徽博隆节能电器有限公司 High-efficiency switch reluctance machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194648A (en) * 1983-04-20 1984-11-05 Toshiba Mach Co Ltd Position detector incorporated motor
KR960025768U (en) * 1994-12-28 1996-07-22 엘지전자주식회사 Rotor position detection device for switched reluctance motors
JPH0974704A (en) * 1995-09-08 1997-03-18 Fujitsu General Ltd Motor
KR970024463A (en) * 1995-10-26 1997-05-30 구자홍 Rotor position detector of switched reluctance motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194648A (en) * 1983-04-20 1984-11-05 Toshiba Mach Co Ltd Position detector incorporated motor
KR960025768U (en) * 1994-12-28 1996-07-22 엘지전자주식회사 Rotor position detection device for switched reluctance motors
JPH0974704A (en) * 1995-09-08 1997-03-18 Fujitsu General Ltd Motor
KR970024463A (en) * 1995-10-26 1997-05-30 구자홍 Rotor position detector of switched reluctance motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101066522B1 (en) * 2005-03-04 2011-09-21 주식회사 동서전자 Sr motor
US8866355B2 (en) 2011-09-28 2014-10-21 Samsung Electro-Mechanics Co., Ltd. Switched reluctance motor
CN105024514A (en) * 2015-06-30 2015-11-04 安徽博隆节能电器有限公司 High-efficiency switch reluctance machine

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