KR0123544Y1 - Permanent magnet type synchronous motor of rotor - Google Patents

Permanent magnet type synchronous motor of rotor Download PDF

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Publication number
KR0123544Y1
KR0123544Y1 KR2019920003489U KR920003489U KR0123544Y1 KR 0123544 Y1 KR0123544 Y1 KR 0123544Y1 KR 2019920003489 U KR2019920003489 U KR 2019920003489U KR 920003489 U KR920003489 U KR 920003489U KR 0123544 Y1 KR0123544 Y1 KR 0123544Y1
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KR
South Korea
Prior art keywords
rotor
permanent magnet
synchronous motor
permanent magnets
core
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Application number
KR2019920003489U
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Korean (ko)
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KR930022450U (en
Inventor
송준민
Original Assignee
황선두
삼성전기주식회사
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Priority to KR2019920003489U priority Critical patent/KR0123544Y1/en
Publication of KR930022450U publication Critical patent/KR930022450U/en
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Publication of KR0123544Y1 publication Critical patent/KR0123544Y1/en

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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
    • H02K1/22—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
    • 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
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

이 고안은 영구자석형 동기모터의 회전자에 관한 것으로서, 코어의 바깥둘레에 소정간격으로 배열되는 영구자석들이 신축성이 있으며 열에 강한 합성수지재로 이루어진 고정부재에 의해 견고하게 고정되어 유동 및 이탈이 방지됨으로써, 회전자의조립작업이 간단해져 제품의 생산성이 향상됨과 동시에 보울트에 의한 영구자석의 고정방식보다 생산비용이 절감되도록 한 것이다.The present invention relates to a rotor of a permanent magnet type synchronous motor, wherein permanent magnets arranged at predetermined intervals on the outer circumference of the core are firmly fixed by a fixing member made of a synthetic resin material that is elastic and heat resistant to prevent flow and departure. By doing so, the assembly of the rotor is simplified, and the productivity of the product is improved, and at the same time, the production cost is reduced compared to the method of fixing the permanent magnet by the bolt.

Description

영구자석형 동기모터의 회전자Rotor of permanent magnet synchronous motor

제1도는 종래 영구자석형 동기모터의 회전자를 부분적으로 나타낸 측면도.1 is a side view partially showing a rotor of a conventional permanent magnet synchronous motor.

제2도는 (a), (b)는 이 고안에 따른 영구자석형 동기모터의 회전자를 부분적으로 나타낸 측면도 및 회전자의 고정부재를 나타낸 사시도이다.2 is a side view partially showing the rotor of the permanent magnet synchronous motor according to the present invention and a perspective view showing the fixing member of the rotor.

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

10 : 회전자 11 : 코어10: rotor 11: core

12 : 슬롯트(Slot) 13 : 돌극부12: Slot 13: protrusions

14 : 영구자석 15 : 조립공14 permanent magnet 15 assembling worker

16 : 나사부 17 : 보울트16: thread 17: bolt

18 : 너트 20 : 회전자18: nut 20: rotor

21 : 코어 22 : 슬롯트21: core 22: slot

23 : 돌극부 24 : 회전축23: protrusion pole 24: axis of rotation

25 : 조립공 25a : 요홈25: assembly 25a: groove

26 : 영구자석 27 : 고정부재26: permanent magnet 27: fixing member

28 : 고정턱 29 : 머리부28: fixed jaw 29: head

30 : 결합편 31 : 조립공30: coupling piece 31: assembly hole

이 고안은 영구자석형 동기모터의 회전자에 관한 것으로서, 더욱 상세하게는 코어의 바깥둘레에 소정간격으로 배열되는 영구자석들이 고정부쟈에 의해 견고하게 고정됨으로써 조립작업이 간단해져 제품의 생산성이 향상됨과 동시에 생산비용이 절감되도록 한 것이다.The present invention relates to a rotor of a permanent magnet type synchronous motor, and more particularly, permanent magnets arranged at predetermined intervals on the outer periphery of the core are firmly fixed by a fixing part, thereby simplifying the assembly work and improving productivity. In addition to improving production costs.

일반적으로 세탁기등에 사용되는 영구자석형 동기모터의 회전자는 슬롯트(Slot)를 갖는 다수개의 돌극부가 형성되도록 규소(Si) 강판을 프레스 가공한 코어를 여러장 적층시키고, 상기 돌극부의 바깥둘레에는 소정간격으로 영구자석들이 배열되어 투자율이 작은 접착제나 알루미늄(Al)등의 다이캐스팅(Diecastin)에 의해 부착되도록 한 것이다.In general, a rotor of a permanent magnet type synchronous motor used in a washing machine, etc., laminates a plurality of cores press-processed a silicon (Si) steel sheet to form a plurality of protrusions having a slot, and a predetermined amount is formed on an outer circumference of the protrusion. Permanent magnets are arranged at intervals so that they can be attached by a small permeability adhesive or diecasting such as aluminum (Al).

그러나, 상기 회전자의 고속회전시 코어와 영구자석들의 접착력이 원심력을 견디지 못하여 영구자석들이 유동될 경우에는 회전자의 언밸런싱(Unbalancing)이 발생되면서 동기모터의 회전력 전달이 정확하게 이루어지지 않게될 뿐만아니라, 더욱 심한 경우에는 영구자석들이 이탈되면서 동기모터가 파손될 염려가 높은 문제점이 있었다.However, when permanent magnets are flowed because the adhesive force between the core and the permanent magnets does not endure the centrifugal force during the high speed rotation of the rotor, unbalancing of the rotor occurs and the rotational force of the synchronous motor is not accurately transmitted. In more severe cases, there is a high concern that the synchronous motor is damaged as the permanent magnets are separated.

따라서, 종래에는 제1도에 나타낸 바와같이 회전자의 유동 및 이탈을 방지하는 것으로서, 먼저 회전자(10)는 코어(11)의 바깥둘레에 슬롯트(12)를 갖는 다수개의 돌극부(13)가 형성되며, 영구자석(14)들의 중앙에는 성형시 조립공(15)을 형성시킨다.Therefore, in the related art, as shown in FIG. 1, as shown in FIG. 1, the rotor 10 has a plurality of protrusions 13 having slots 12 on the outer circumference of the core 11 to prevent the flow and departure of the rotor. ) Is formed, in the center of the permanent magnets (14) to form an assembly hole (15) during molding.

또한, 상기 코어(11)의 돌극부(13) 바깥둘레에 영구자석(14)들을 소정간격으로 배열하여 장착시킨 후에, 상기 영구자석(14)들의 조립공(15)을 통해 한쪽끝단에 나사부(16)가 형성된 보울트(17)를 끼운다.In addition, after the permanent magnets 14 are arranged on the outer periphery of the protruding portion 13 of the core 11 at predetermined intervals, the screws 16 may be mounted at one end through the assembly holes 15 of the permanent magnets 14. Insert the bolt (17) formed.

그리고, 상기 돌극부(13) 사이에 형성된 슬롯트(12)내에 사각형태의 너트(18)를 설치하고, 상기 보울트(17)와 너트(18)의 체결에 의해 영구자석(14)들이 코어(11)에 고정되도록 한다.In addition, a square nut 18 is installed in the slot 12 formed between the protrusions 13, and the permanent magnets 14 are connected to the core 17 by fastening the bolt 17 and the nut 18. 11).

그러나, 상기 바와같은 종래의 회전자(10)는 코어(11)의 슬롯트(12)내에 설치되는 너트(18)의 위치가 영구자석(14)들의 조립공(15)과 일치되도록 정확해야 보울트(17)의 체결이 이루어지는 등 조립작업이 번거롭기 때문에 생산성이 저하될 뿐만아니라, 상기 보울트(17)의 사용으로 인하여 제품의 생산비용이 상승되는 문제점이 있었다.However, the conventional rotor 10 as described above must be accurate so that the position of the nut 18 installed in the slot 12 of the core 11 matches with the assembly hole 15 of the permanent magnets 14. 17) is not only the productivity is lowered because the assembly work is cumbersome, such as the fastening of the fastening, there is a problem that the production cost of the product is increased due to the use of the bolt (17).

이 고안은 상기와 같은 문제점을 해결하기 위해 제안된 것으로서, 이 고안의 목적은 코어의 바깥둘레에 소정간격으로 배열되는 영구자석들이 신축성이 있으며 열에 강한 합성수지재로 이루어진 고정부재에 의해 견고하게 고정되어 유동 및 이탈이 방지됨으로써, 회전자의 조립작업이 간단해져 제품의 생산성이 향상됨과 동시에 보울트에 의한 영구자석의 고정방식보다 생산비용이 절감되도록 한 영구자석형 동기모터의 회전자를 제공하는데 있다.This invention is proposed to solve the above problems, and the object of this invention is that the permanent magnets arranged at predetermined intervals on the outer circumference of the core is firmly fixed by a fixing member made of elastic and heat-resistant synthetic resin material. By preventing the flow and separation, the assembly of the rotor is simplified to improve the productivity of the product and at the same time to provide a rotor of the permanent magnet synchronous motor to reduce the production cost than the permanent magnet fixing method by the bolt.

상기와 같은 목적을 달성하기 위한 이 고안의 특징은, 코어는 슬롯트를 갖는 다수개의 돌극부가 형성되며, 상기 돌극부의 바깥둘레에 영구자석들의 유동 및 이탈이 방지되도록 장착함에 있어서; 상기 영구자석들의 조립공을 통해 한쪽끝단에 촉형의 고정턱이 형성되는 고정부재를 끼우고, 고정부재의 고정턱이 슬롯트내에 설치되는 결합편의 조립공에 끼워맞춤되도록 한 영구자석형 동기모터의 회전자게 있다.A feature of this invention for achieving the above object is that the core is formed with a plurality of protrusions having a slot, the mounting on the outer periphery of the protrusion to prevent the flow and separation of permanent magnets; Through the assembly holes of the permanent magnets, a fixing member having a tactile fixing jaw formed at one end thereof is inserted, and the rotor cradle of the permanent magnet synchronous motor is fitted with the fixing jaw of the fixing member to be fitted into the assembly hole of the coupling piece installed in the slot. have.

이하, 이 고안에 따른 영구자석형 동기모터의 회전자에 대한 하나의 바람직한 실시예를 첨부된 도면에 의하여 상세하게 설명한다. 제2도의 (a), (b)는 이 고안에 따른 영구자석형 동기모터의 회전자를 부분적으로 나타낸 측면도 및 회전자의 고정부재를 나타낸 사시도로서, 먼저 회전자(20)의 코어(21)는 규소(Si) 강판을 프레스 가공하여 그 바깥둘레에 슬롯트(22)를 갖는 다수개의 돌극부(23)를 형성하며 중앙에는 회전축(24)을 끼워맞춤하여 설치한다.Hereinafter, one preferred embodiment of a rotor of a permanent magnet synchronous motor according to the present invention will be described in detail with reference to the accompanying drawings. (A) and (b) of FIG. 2 are a side view partially showing the rotor of the permanent magnet synchronous motor according to the present invention and a perspective view showing the fixing member of the rotor, firstly the core 21 of the rotor 20. Press-processes the silicon (Si) steel sheet to form a plurality of protrusions 23 having slots 22 on the outer circumference thereof, and the rotary shaft 24 is fitted in the center thereof.

또한, 상기 코어(21)의 돌극부(23) 바깥둘레에는 조립공(25)이 형성되는 영구자석(26)들을 소정간격으로 배열하여 장착시키고, 상기 조립공(25)의 한쪽끝단은 카운터싱킹 가공에 의해 접시머리모양의 요홈(25a)을 형성하며, 이 조립공(25)을 통해 신축성있고 열에 강한 합성수지재로 이루어지는 고정부재(27)를 끼운다.In addition, the outer periphery of the protrusions 23 of the core 21 are arranged to mount the permanent magnets 26, which are formed with the assembling holes 25, at predetermined intervals, and one end of the assembling holes 25 is subjected to countersinking. By forming a dish head-shaped groove (25a) through this assembly hole 25, the fixing member 27 made of a flexible and heat-resistant synthetic resin material is fitted.

한편, 상기 고정부재(27)의 한쪽끝에는 그 끝이 예리한 형태가 되도록 촉형의 고정턱(28)을 형성하며 다른쪽끝에는 머리부(29)를 형성하고, 이 고정부재(27)의 고정턱(28)을 코어(21)의 슬롯트(22)내에 설치되는 결합편(30)의 조립공(31)에 끼워맞춤시킨다.On the other hand, one end of the fixing member 27 to form a tactile fixing jaw 28 so that the end is a sharp shape, and the other end to form a head 29, the fixing jaw of the fixing member 27 ( 28 is fitted to the assembling hole 31 of the engaging piece 30 provided in the slot 22 of the core 21.

이때, 상기 결합편(30)의 조립공(31) 직경은 고정부재(27)에 형성된 고정턱(28)의 최대직경보다 작아야 하며, 회전자(20)는 구동용 코일이 감겨진 스테이터 코어(도시하지 않음)의 내측에 설치된다.At this time, the diameter of the assembly hole 31 of the coupling piece 30 should be smaller than the maximum diameter of the fixing jaw 28 formed in the fixing member 27, the rotor 20 is a stator core wound around the driving coil (not shown) Not installed).

상술한 바와같이 이 고안에 따른 영구자석형 동기모터의 회전자(20)는, 코어(21)의 돌극부(23) 바깥둘레에 영구자석(26)들을 장착할 경우에, 상기 영구자석(26)들의 조립공(25)을 통해 고정부재(27)를 끼우고 그 고정턱(28)을 결합편(30)의 조립공(31)에 끼워맞춤시키며, 고정부재(27)의 머리부(29)가 조립공(25)의 요홈(25a)에 일치되면 조립작업이 완료된다.As described above, when the rotor 20 of the permanent magnet type synchronous motor according to the present invention mounts the permanent magnets 26 on the outer circumference of the protrusion 23 of the core 21, the permanent magnet 26 Insert the fixing member 27 through the assembly hole 25 of the fittings and fit the fixing jaw 28 to the assembly hole 31 of the coupling piece 30, the head 29 of the fixing member 27 If it matches the groove 25a of the assembly hole 25, the assembly work is completed.

여기에서, 상기 고정부재(27)의 고정턱(28)은 신축성이 있기 때문에 결합편(30)의 조립공(31)에 용이하게 끼워맞춤되는 것이나, 상기 고정턱(28)이 조립공(31)을 완전하게 통과된 후에는 그 최대직경이 조립공(31)의 직경보다 크기 때문에 빠져나오지게 되면서 영구자석(26)들이 견고하게 고정된다.Here, since the fixing jaw 28 of the fixing member 27 is elastic, the fixing jaw 28 is easily fitted into the assembly hole 31 of the coupling piece 30, but the fixing jaw 28 is provided with the assembly hole 31. After the complete passage, the maximum diameter is larger than the diameter of the assembly hole 31, so that the permanent magnets 26 are firmly fixed.

그리고, 상기 고정부재(27)의 고정턱(28)이 코어(21)의 슬롯트(22)내에 설치된 결합편(30)의조립공(31) 위치와 불일치될 경우에도 상기 고정턱(28)이 촉형으로 그 끝이 예리하게 형성되어 있기 때문에 어느 정도 적당한 위치에서도 조립작업이 가능한 것이다.In addition, even when the fixing jaw 28 of the fixing member 27 is inconsistent with the position of the assembly hole 31 of the coupling piece 30 installed in the slot 22 of the core 21, the fixing jaw 28 is Because the tip is sharply formed by the tactile type, it is possible to assemble it at a suitable position to some extent.

또한, 고정부재(27)가 영구자석(26)들의 조립공(25)에 통과되도록 밀어주게 되면 고정부재(27)의 고정턱(28)이 결합편(30)의 조립공(31)과 끼워맞춤되어 영구자석(26)들의 유동 및 이탈을 방지함으로써, 회전자(20)의 조립작업이 간단해져 제품의 생산성이 향상될 뿐만아니라, 종래의 회전자(10)에서 영구자석(14)들을 고정하기 위해 금속재의 보울트(17)를 사용한 경우보다 가공비 및 재료비가 절감되어 제품의 생산비용을 절감시킬 수 있는 것이다.In addition, when the fixing member 27 is pushed to pass through the assembly holes 25 of the permanent magnets 26, the fixing jaw 28 of the fixing member 27 is fitted with the assembly holes 31 of the coupling piece 30. By preventing the flow and separation of the permanent magnets 26, the assembly of the rotor 20 is simplified to improve the productivity of the product, as well as to secure the permanent magnets 14 in the conventional rotor 10 Processing costs and material costs are reduced compared to the case where the metal bolt 17 is used, thereby reducing the production cost of the product.

이상에서와 같이 이 고안에 따른 영구자석형 동기모터의 회전자는 코어의 바깥둘에에 영구자석들이 신축성이 있으며 열에 강한 합성수지재로 그 끝이 예리하게 이루어진 고정부재에 의해 견고하게 고정되어 유동 및 이탈이 방지됨으로써, 회전자의 조립작업이 간단해져 제품의 생산성이 향상됨과 동시에 생산비용이 절감되도록 한 유용한 고안인 것이다.As described above, the rotor of the permanent magnet synchronous motor according to the present invention has a permanent magnet on the outer two sides of the core and is made of heat-resistant synthetic resin, which is firmly fixed by a fixing member whose edge is sharp and flows and escapes. By preventing this, it is a useful design to simplify the assembly work of the rotor to improve the productivity of the product and at the same time reduce the production cost.

Claims (1)

코어는 슬롯트를 갖는 다수개의 돌극부가 형성되며, 상기 돌극부의 바깥둘레에 영구자석들의 유동 및 이탈이 방지되도록 장착함에 있어서; 상기 영구자석(26)들의 조립공(25)을 통해 한쪽끝단에 촉형의 고정턱(28)이 형성되는 고정부재(27)를 끼우고, 상기 고정부재(27)의 고정턱(28)이 슬롯트(22)내에 설치되는 결합편(30)의 조립공(31)에 끼워맞춤되도록 한 것을 특징으로 하는 영구자석형 동기모터의 회전자.The core is formed with a plurality of protrusions having a slot, and mounted to the outer periphery of the protrusion to prevent the flow and separation of permanent magnets; Through the assembly hole 25 of the permanent magnets (26) to insert a fixing member 27 is formed with a chuck fixing jaw 28 at one end, the fixing jaw 28 of the fixing member 27 is slotted The rotor of the permanent magnet synchronous motor, characterized in that the fitting to be fitted to the assembly hole 31 of the coupling piece (30) installed in the (22).
KR2019920003489U 1992-03-05 1992-03-05 Permanent magnet type synchronous motor of rotor KR0123544Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019920003489U KR0123544Y1 (en) 1992-03-05 1992-03-05 Permanent magnet type synchronous motor of rotor

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KR0123544Y1 true KR0123544Y1 (en) 1999-05-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007025180A1 (en) * 2005-08-25 2007-03-01 Power Group International, Inc. A device and method to clamp and lock permanent magnets and improve cooling within a rotating electrical machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007025180A1 (en) * 2005-08-25 2007-03-01 Power Group International, Inc. A device and method to clamp and lock permanent magnets and improve cooling within a rotating electrical machine

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KR930022450U (en) 1993-10-16

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