KR20090104451A - Divided-core type moter stator - Google Patents

Divided-core type moter stator Download PDF

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Publication number
KR20090104451A
KR20090104451A KR1020080029881A KR20080029881A KR20090104451A KR 20090104451 A KR20090104451 A KR 20090104451A KR 1020080029881 A KR1020080029881 A KR 1020080029881A KR 20080029881 A KR20080029881 A KR 20080029881A KR 20090104451 A KR20090104451 A KR 20090104451A
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KR
South Korea
Prior art keywords
split core
yoke portion
yoke
motor stator
circumferential surface
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KR1020080029881A
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Korean (ko)
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KR100964540B1 (en
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김남숙
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김남숙
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    • 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
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • 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
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/09—Magnetic cores comprising laminations characterised by being fastened by caulking

Abstract

PURPOSE: A divided core motor stator is provided to replace a defective core rapidly by facilitating the disassembly of the stator. CONSTITUTION: A divided core motor stator includes a first divided core(10) and a second divided core(20). The first divided core includes a yoke(12), teeth(14), an extension protrusion(16), and a coupling protrusion(18). An outer circumference of the yoke is an arc. A coil(30) is wound around the teeth which is protruded from an inner circumference of the yoke. The extension protrusion is protruded from both ends of the yoke to the circumference of the yoke. The coupling protrusion is protruded to the radius direction of the yoke in the inner circumference of the extension protrusion. The second divided core includes the yoke(22), the teeth(24), a depression(26), and a coupling groove(28). The outer circumference of the yoke is the arc. The teeth is protruded from the inner circumference of the yoke and the coil is wound around the teeth. The depression is depressed corresponding to the extension protrusion in both ends of the outer circumference of the yoke. The coupling groove is formed in the depression to correspond to the coupling protrusion.

Description

분할코어식 모터 스테이터{Divided-core type moter stator}Split-core type motor stator {Divided-core type moter stator}

본 발명은 분할코어식 모터 스테이터에 관한 것으로서, 보다 상세하게는 조립과 분해가 용이한 새로운 구조의 분할코어식 모터 스테이터에 관한 것이다.The present invention relates to a split core type motor stator, and more particularly, to a split core type motor stator having a new structure that is easy to assemble and disassemble.

복수개의 분할코어를 환형상으로 연결하여 제조되는 모터 스테이터가 제공되고 있다. 상기 분할코어는 원주형상의 요크부와, 이 요크부의 내주면에서 돌출된 티스부로 이루어지는데, 이 티스부에 코일을 권취한 후, 분할코어를 환형으로 연결하여 모터 스테이트가 제조된다. 이러한 분할코어로 연결 조립된 분할코어식 모터 스테이터는 일체형 모터 스테이터에 비해 코일의 권선작업이 용이하고, 권선된 코일의 점적률도 증가되어 모터의 성능이 향상되는 장점이 있다. 또한, 모터 스테이터에 결함이 발생된 경우에 모터 스테이터 전체를 교체할 필요 없이 결함이 발생된 부분의 분할코어만 교체하면 되므로 경제적인 장점도 있다. There is provided a motor stator manufactured by connecting a plurality of split cores in an annular shape. The split core comprises a cylindrical yoke portion and a tooth portion protruding from the inner circumferential surface of the yoke portion. After winding a coil around the tooth portion, the split core is connected in an annular shape to produce a motor state. The split-core motor stator connected and assembled by such a split core has an advantage in that the coil winding is easier than the integrated motor stator, and the spot ratio of the wound coil is increased to improve the performance of the motor. In addition, when a defect occurs in the motor stator, there is an economical advantage because only the split core of the defective portion needs to be replaced without having to replace the entire motor stator.

한편, 이러한 분할코어식 모터 스테이터에 대해 분할코어를 용접이나 접착제로 접착하여 일체화시키지 않고, 분할코어가 착탈가능하게 연결된 모터 스테이터가 제안되었다. 이러한 모터 스테이터는 도 1에 도시된 바와 같이, 원주형상의 요크부(2)와, 이 요크부(2)의 내주면에서 돌출되어 코일(4)이 권취되는 티스부(3)로 이루어지는데, 요크부(2)의 일단 외측면에는 결합돌기(6)가 형성되고 타단 외측면에는 상기 결합돌기(6)가 끼워지는 결합홈(7)이 형성된다. 이러한 분할코어는 상기와 같은 형상을 갖도록 가공된 코어판을 다수 장 적층하고 소정 두께를 갖도록 제조되며, 종래의 분할코어식 모터 스테이터는 이러한 분할코어(8)를 환형으로 연결하여 조립된다. On the other hand, a motor stator in which a split core is detachably connected to the split core type motor stator without being integrated by welding or adhesively bonding the split core has been proposed. As shown in FIG. 1, the motor stator includes a circumferential yoke portion 2 and a tooth portion 3 protruding from the inner circumferential surface of the yoke portion 2 to wind the coil 4. A coupling protrusion 6 is formed at one outer side surface of the part 2 and a coupling groove 7 into which the coupling protrusion 6 is fitted at the other outer side surface thereof. Such a split core is manufactured by stacking a plurality of core plates processed to have such a shape and having a predetermined thickness, and a conventional split core type motor stator is assembled by connecting the split cores 8 in an annular shape.

그러나 종래 분할코어(8)는 결합돌기(6)와 결합홈(6)이 요크부(2)의 양단 외측면에 형성되어 있기 때문에 분할코어(8)의 조립시 분할코어(8)들을 결합돌기(6)의 돌출방향으로 가압하여 조립하지 못하고, 분할코어(8)들을 분할코어(8)의 전후 두께방향으로, 즉, 결합돌기(6)와 결합홈(7)의 전후 두께방향으로 밀어서 결합돌기(6)가 결합홈(7)에 끼워지도록 하여야 한다. 상기 결합돌기(6)와 결합홈(7)은 분할코어(8)를 이루는 소재의 탄성변형에 의해 억지 끼움되기 때문에 분할코어(8)를 조립하기 위해서는 비교적 큰 힘이 요구되는데, 더구나, 전술한 바와 같이, 분할코어(8)의 결합돌기(6)가 결합홈(7)에 완전히 삽입되도록 분할코어(8)를 분할코어(8)의 전후 두께 만큼 많이 가압하여야 하므로 조립이 상당히 어려우며, 조립시간도 많이 걸린다. 뿐만 아니라, 분할코어(8)를 형성하는 적층판이 정확하게 정렬되도록 적층되지 못하고 다소 어긋나게 적층된 경우에는 결합돌기(6)와 결합홈(7)의 표면이 매끄럽지 못하고 울퉁불퉁하기 때문에 분할코어를 조립하기가 한층 더 힘이 든다. 또한, 분할코어를 분해하는 경우에도 동일한 문제가 발생된다. However, in the conventional split core 8, since the coupling protrusion 6 and the coupling groove 6 are formed on both outer sides of the yoke portion 2, the coupling protrusions of the split cores 8 are assembled when the split core 8 is assembled. Cannot be assembled by pressing in the protruding direction of 6, the split cores 8 are pushed in the front and rear thickness directions of the split core 8, that is, in the front and rear thickness directions of the coupling protrusion 6 and the coupling groove 7 to be engaged. The projections 6 should be fitted into the coupling grooves 7. Since the coupling protrusion 6 and the coupling groove 7 are forcibly fitted by the elastic deformation of the material forming the split core 8, a relatively large force is required to assemble the split core 8. As described above, the assembling is considerably difficult because the split core 8 has to be pressurized as much as the front and rear thickness of the split core 8 so that the coupling protrusion 6 of the split core 8 is completely inserted into the coupling groove 7. It also takes a lot. In addition, when the laminates forming the split cores 8 are not stacked to be aligned precisely and are stacked slightly differently, it is difficult to assemble the split cores because the surfaces of the coupling protrusions 6 and the coupling grooves 7 are not smooth and uneven. It is harder. In addition, the same problem occurs when the split core is disassembled.

본 발명은 상기의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 분할코어의 조립시 분할코어에 형성된 결합돌기의 돌출방향, 즉, 모터 스테이터의 중심에 대해 내, 외측방향으로 분할코어를 가압하여 조립할 수 있으므로 분할코어의 연결조립이 용이하고 이에 따라 조립시간도 단축되어 생산성이 향상되며, 또한, 분할코어의 분해도 용이하여 결함이 발생된 분할코어를 교체하고자 하는 경우에 해당 분할코어를 분해하여 교체하기도 용이하므로 유지보수도 용이한 새로운 분할코어식 모터 스테이터를 제공하는 것이다.The present invention is to solve the above problems, an object of the present invention is to press the split core in the inner and outer direction to the direction of the projection of the engaging projection formed on the split core, that is, the center of the motor stator during assembly of the split core Since it is possible to assemble, it is easy to assemble and connect the split cores, and thus the assembly time is shortened, thereby improving productivity. In addition, the split cores can be easily disassembled to replace the defective cores. The new split-core motor stator provides easy maintenance and ease of maintenance.

본 발명에 따르면, 전원에 의해 자기를 발생시키는 코일이 권취된 환형의 모터 스테이터에 있어서, 외주면이 원호형상인 요크부(12)와, 상기 요크부(12)의 내주면에서 돌출되어 코일(30)이 권취되는 티스부(14)와, 상기 요크부(12)의 양단면에서 요크부(12)의 원주방향으로 돌출된 연장돌부(16)와, 상기 연장돌부(16)의 내주면에서 요크부(12)의 반경방향으로 돌출된 결합돌기(18)를 포함하는 제1분할코어(10)와:According to the present invention, in an annular motor stator in which a coil for generating magnetism by a power source is wound, an outer circumferential surface of the yoke portion 12 has an arc shape, and a coil 30 protrudes from an inner circumferential surface of the yoke portion 12. The wound portion 14, the extension protrusions 16 protruding in the circumferential direction of the yoke portion 12 from both end surfaces of the yoke portion 12, and the yoke portion on the inner circumferential surface of the extension protrusion 16. A first split core 10 comprising a coupling protrusion 18 projecting radially from 12):

외주면이 원호형상의 요크부(22)와, 이 요크부(22)의 내주면에서 돌출되어 코일(30)이 권취되는 티스부(24)와, 상기 요크부(22)의 외주면 양단부에서 상기 연 장돌부(16)에 대응되는 형상으로 함몰된 함몰부(26)와, 상기 결합돌기(18)에 대응되는 형상으로 상기 함몰부(26)에 형성된 결합홈(28)을 포함하는 제1분할코어(20)로 구성되며, The outer circumferential surface protrudes from the arc-shaped yoke portion 22, the tooth portion 24 on which the coil 30 is wound by protruding from the inner circumferential surface of the yoke portion 22, and the extension stones at both ends of the outer circumferential surface of the yoke portion 22. A first split core including a recess 26 recessed in a shape corresponding to the part 16 and a coupling groove 28 formed in the recess 26 in a shape corresponding to the coupling protrusion 18. 20),

상기 제1분할코어(10)와 제2분할코어(20)가 상기 결합돌기(18)가 결합홈(28)에 끼워지도록 교호로 연결조립된 것을 특징으로 하는 분할코어식 모터 스테이터가 제공된다. The split core type motor stator is provided in which the first split core 10 and the second split core 20 are alternately connected and assembled so that the coupling protrusion 18 is fitted into the coupling groove 28.

이상과 같은 구성을 가지는 본 발명은 제1분할코어(10)의 결합돌기(18)가 요크부(12)의 양단에서 내향으로 돌출 형성되고, 제2분할코어(20)의 결합홈(28)이 요크부(22)의 외주면에서 내향으로 오목하게 형성되기 때문에 제1분할코어(10)를 결합돌기(18)의 돌출 방향, 즉, 모터 스테이터의 중심에 대해 내, 외측방향으로 가압하면 제1분할코어(10)의 결합돌기(18)가 제2분할코어(20)의 결합홈(28)에 끼워져서 이들 분할코어(10,20)가 연결조립된다. 이와 같이 제1분할코어(10)를 결합돌기(18)의 돌출방향으로 가압하여 조립하기 때문에 종래와 달리 제1분할코어(10)를 결합돌기(18)의 돌출길이 만큼만 결합홈(28)에 밀어 넣으면 되므로 분할코어(10,20)의 조립이 용이한 장점이 있다. 그리고 이에 따라 조립시간이 단축되므로 모터 스테이터의 생산성이 향상된다. In the present invention having the configuration as described above, the engaging projection 18 of the first split core 10 protrudes inwardly from both ends of the yoke portion 12, and the engaging groove 28 of the second split core 20 is formed. Since the yoke portion 22 is recessed inward from the outer circumferential surface of the yoke portion 22, the first split core 10 is pressurized in the inward and outward directions with respect to the projecting direction of the engaging projection 18, that is, the center of the motor stator. The engaging projection 18 of the split core 10 is fitted into the engaging groove 28 of the second split core 20 so that these split cores 10 and 20 are assembled. Since the first split core 10 is assembled by pressing in the protruding direction of the coupling protrusion 18 as described above, the first split core 10 is inserted into the coupling groove 28 only as long as the protrusion length of the coupling protrusion 18. There is an advantage in that the assembly of the split core (10, 20) is easy to push. As a result, assembling time is shortened, the productivity of the motor stator is improved.

또한, 모터 스테이터를 분해하는 경우에도 제1분할코어(10)를 결합돌기(18)의 돌출길이 만큼 모터 스테이터의 중심에 대해 외측으로 당기기만 하면 되므로 모 터 스테이터의 분해도 용이하다. 따라서 모터 스테이터에 결함이 발생된 경우에 결함이 발생된 해당 분할코어(10,20)를 신속하게 교체하여 수리할 수 있는 장점이 있다. In addition, when disassembling the motor stator, it is easy to disassemble the motor stator since the first split core 10 only needs to be pulled outward with respect to the center of the motor stator by the protruding length of the coupling protrusion 18. Therefore, in the case where a defect occurs in the motor stator, there is an advantage in that the corresponding split cores 10 and 20 having a defect can be quickly replaced and repaired.

이하에서 도면을 참조하여 본 발명의 바람직한 실시예를 설명한다.Hereinafter, with reference to the drawings will be described a preferred embodiment of the present invention.

도 2a와 b는 본 발명의 일 실시예에 의한 제1, 2분할코어(10,20)를 보인 사시도이고, 도 3은 본 발명에 의한 모터 스테이터의 평면도이다. 본 발명은 도시된 바와 같은 제1분할코어(10)와 제2분할코어(20)로 이루어진다. 2A and 2B are perspective views showing the first and second split cores 10 and 20 according to an embodiment of the present invention, and FIG. 3 is a plan view of the motor stator according to the present invention. The present invention consists of a first split core 10 and a second split core 20 as shown.

상기 제1분할코어(10)는 원호형상인 요크부(12)와, 이 요크부(12)의 내주면에서 돌출되어 코일(30)이 권취되는 티스부(14)와, 상기 요크부(12)의 양단면에서 요크부(12)의 원주방향으로 돌출된 연장돌부(16)와, 상기 연장돌부(16)의 내주면에서 요크부(12)의 반경방향으로 돌출된 결합돌기(18)로 이루어진다. 상기 티스부(14)는 요크부(12)의 외주면의 원호중심을 향해 돌출되며, 상기 결합돌기(18) 역시 요크부(12)의 외주면의 원호중심을 향해 돌출된다. 그리고 상기 요크부(12)의 외주면과 동일 원호를 갖는 동일면을 이루면서 요크부(12)에 비해 얇은 두께를 가지도록 형성된다. The first split core 10 has a yoke portion 12 having an arc shape, a tooth portion 14 protruding from the inner circumferential surface of the yoke portion 12, and the coil 30 being wound, and the yoke portion 12. An extension protrusion 16 protruding in the circumferential direction of the yoke portion 12 at both end surfaces of the yoke portion 12 and a coupling protrusion 18 protruding in the radial direction of the yoke portion 12 from the inner circumferential surface of the extension protrusion 16. The tooth portion 14 protrudes toward the arc center of the outer circumferential surface of the yoke portion 12, and the coupling protrusion 18 also protrudes toward the arc center of the outer circumferential surface of the yoke portion 12. And while forming the same surface having the same arc with the outer peripheral surface of the yoke portion 12 is formed to have a thin thickness than the yoke portion 12.

또, 상기 제2분할코어(20)는 외주면이 원호형상의 요크부(22)와, 이 요크부(22)의 내주면에서 돌출되어 코일(30)이 권취되는 티스부(24)와, 상기 요크부(22)의 외주면 양단부에서 상기 연장돌부(16)에 대응되는 형상으로 함몰된 함몰 부(26)로 이루어지는데, 이 함몰부(26)에는 상기 결합돌기(18)에 대응되는 형상의 결합홈(28)이 형성된다. 이러한 제1분할코어(10)와 제2분할코어(20)는 다수장의 코어판을 적층하여 형성된다. 미 설명부호 19, 29는 이들 코어판을 용이하게 적층하기 위한 요철이다. In addition, the second split core 20 has an outer circumferential surface protruding from an arc-shaped yoke portion 22, a tooth portion 24 on which the coil 30 is wound by protruding from the inner circumferential surface of the yoke portion 22, and the yoke It consists of a recessed part 26 recessed in a shape corresponding to the extension protrusion 16 at both ends of the outer peripheral surface of the part 22, the recessed portion 26 has a coupling groove of a shape corresponding to the engaging projection 18 28 is formed. The first split core 10 and the second split core 20 are formed by stacking a plurality of core plates. Unexplained reference numerals 19 and 29 are irregularities for easily laminating these core plates.

본 발명은 상기와 같은 구성을 가지는 제1분할코어(10)와 제2분할코어(20)를 교호로 연결하여 조립된다. 전술한 바와 같이, 제1분할코어(10)의 결합돌기(18)가 모터 스테이터의 내향으로 돌출되고, 제2분할코어(20)의 결합홈(28) 역시 모터 스테이터의 내향으로 함몰되므로 이들 분할코어(10,20)의 조립시 제1분할코어(10)와 제2분할코어(20)를 결합돌기(18)의 돌출방향, 즉 모터 스테이터의 중심에 대해 내, 외측으로 가압하면 제1분할코어(10)의 결합돌기(18)가 제2분할코어(20)의 결합홈(28)에 삽입되어 연결조립된다. 이때 상기 결합돌기(18)와 결합홈(28)은 이들 분할코어(10,20)를 형성하는 소재의 탄성변형력에 의해 억지 끼움된다. The present invention is assembled by alternately connecting the first split core 10 and the second split core 20 having the above configuration. As described above, the engaging projection 18 of the first split core 10 protrudes inwardly of the motor stator, and the split grooves 28 of the second split core 20 are also recessed inwardly of the motor stator so that these divisions are performed. When assembling the cores 10 and 20, the first split core 10 and the second split core 20 are pressurized inward and outward with respect to the protruding direction of the coupling protrusion 18, that is, the center of the motor stator. The coupling protrusion 18 of the core 10 is inserted into the coupling groove 28 of the second split core 20 to be assembled. In this case, the coupling protrusion 18 and the coupling groove 28 are forcibly fitted by the elastic deformation force of the material forming the split cores 10 and 20.

이와 같이 제1분할코어(10)와 제2분할코어(20)가 모터 스테이터의 중심에 대해 내, 외측방향으로 가압으로 끼움결합되는 구성을 가지므로 종래 분할코어의 전후방향으로 가압하여 조립되는 모터 스테이터에 비해 조립이 용이하며, 특히, 가장 나중에 조립되는 분할코어를 조립하기가 종래에 비해 한층 더 수월하다. 뿐만 아니라 모터 스테이터를 분해하는 경우에도 제1분할코어(10)를 모터 스테이터의 중심에 대해 외측으로 당기면 되므로 모터 스테이터의 분해도 용이하다. Thus, since the first split core 10 and the second split core 20 have a configuration in which the first split core 10 and the second split core 20 are press-fitted in the inner and outer directions with respect to the center of the motor stator, the motor is assembled by pressing in the front-rear direction of the conventional split core. It is easier to assemble than the stator, and in particular, it is easier to assemble the split core which is assembled last. In addition, when disassembling the motor stator, the first split core 10 may be pulled outward with respect to the center of the motor stator, so that the motor stator may be easily disassembled.

도 1은 종래 분할코어식 모터 스테이터를 보인 분해사시도1 is an exploded perspective view showing a conventional split core type motor stator

도 2a와 b는 본 발명에 의한 분할코어를 보인 사시오2A and 2B show a split core according to the present invention.

도 3은 본 발명에 의한 모터 스테이터의 측면도Figure 3 is a side view of the motor stator according to the present invention

Claims (1)

전원에 의해 자기를 발생시키는 코일이 권취된 환형의 모터 스테이터에 있어서, 외주면이 원호형상인 요크부(12)와, 상기 요크부(12)의 내주면에서 돌출되어 코일(30)이 권취되는 티스부(14)와, 상기 요크부(12)의 양단면에서 요크부(12)의 원주방향으로 돌출된 연장돌부(16)와, 상기 연장돌부(16)의 내주면에서 요크부(12)의 반경방향으로 돌출된 결합돌기(18)를 포함하는 제1분할코어(10)와:In an annular motor stator in which a coil that generates magnetism by a power source is wound, a yoke portion 12 having an outer circumferential surface and a tooth portion which protrudes from an inner circumferential surface of the yoke portion 12 and winds up the coil 30. 14, an extension protrusion 16 protruding in the circumferential direction of the yoke portion 12 from both end faces of the yoke portion 12, and a radial direction of the yoke portion 12 on the inner circumferential surface of the extension protrusion 16; The first split core 10 including a coupling protrusion 18 protruding into: 외주면이 원호형상의 요크부(22)와, 이 요크부(22)의 내주면에서 돌출되어 코일(30)이 권취되는 티스부(24)와, 상기 요크부(22)의 외주면 양단부에서 상기 연장돌부(16)에 대응되는 형상으로 함몰된 함몰부(26)와, 상기 결합돌기(18)에 대응되는 형상으로 상기 함몰부(26)에 형성된 결합홈(28)을 포함하는 제1분할코어(20)로 구성되며, The outer circumferential surface protrudes from the arc-shaped yoke portion 22, the tooth portion 24 on which the coil 30 is wound by protruding from the inner circumferential surface of the yoke portion 22, and the extension protrusions at both ends of the outer circumferential surface of the yoke portion 22. The first split core 20 includes a depression 26 recessed in a shape corresponding to 16 and a coupling groove 28 formed in the depression 26 in a shape corresponding to the coupling protrusion 18. ) 상기 제1분할코어(10)와 제2분할코어(20)가 상기 결합돌기(18)가 결합홈(28)에 끼워지도록 교호로 연결조립된 것을 특징으로 하는 분할코어식 모터 스테이터. Split core type motor stator, characterized in that the first split core (10) and the second split core (20) are alternately connected and assembled so that the coupling protrusion (18) is fitted into the coupling groove (28).
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