KR19990050282A - Insulation structure of linear motor - Google Patents

Insulation structure of linear motor Download PDF

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Publication number
KR19990050282A
KR19990050282A KR1019970069362A KR19970069362A KR19990050282A KR 19990050282 A KR19990050282 A KR 19990050282A KR 1019970069362 A KR1019970069362 A KR 1019970069362A KR 19970069362 A KR19970069362 A KR 19970069362A KR 19990050282 A KR19990050282 A KR 19990050282A
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South Korea
Prior art keywords
coil winding
winding groove
linear motor
coil
insulator
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KR1019970069362A
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Korean (ko)
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KR100253223B1 (en
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박경배
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구자홍
엘지전자 주식회사
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Priority to KR1019970069362A priority Critical patent/KR100253223B1/en
Publication of KR19990050282A publication Critical patent/KR19990050282A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/32Windings characterised by the shape, form or construction of the insulation
    • H02K3/34Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K41/00Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02Linear motors; Sectional motors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

본 발명은 리니어 압축기의 절연구조에 관한 것으로, 종래에는 내측고정자에 형성된 코일권선홈이 인입구가 좁게 형성되어 수개의 절연체를 구분하여 부착하여야 하므로, 그 절연공정이 난해하고 복잡하여 생산성이 저하되는 문제점이 있었던 바, 본 발명에서는 상기 고정자의 외주면에 형성되는 코일권선홈의 내주면에 그 코일권선홈의 인입구보다 작게 접철되었다가 복원되는 탄성재질인 단일의 절연체를 밀착시켜 코일권선홈과 코일을 절연시킴으로써, 절연작업의 공수를 절감하여 생산성이 현저하게 향상된다.The present invention relates to an insulation structure of a linear compressor, and in the related art, a coil winding groove formed in the inner stator has a narrow inlet and must be attached to several insulators, so that the insulation process is difficult and complicated, resulting in low productivity. In the present invention, by insulating the coil winding groove and the coil by closely contacting the inner circumferential surface of the coil winding groove formed on the outer circumferential surface of the stator to a single insulator made of an elastic material which is folded and restored smaller than the inlet of the coil winding groove. In addition, productivity is remarkably improved by reducing the labor of insulation work.

Description

리니어 모터의 절연구조Insulation structure of linear motor

본 발명은 리니어 압축기의 리니어 모터에 관한 것으로, 특히 단일의 탄성부재를 이용하여 코일권선홈과 코일을 절연시키는 리니어 모터의 절연구조에 관한 것이다.The present invention relates to a linear motor of a linear compressor, and more particularly, to an insulating structure of a linear motor that insulates a coil winding groove from a coil by using a single elastic member.

일반적으로 리니어 모터는, 도 1에 도시한 바와 같이, 다수개의 철편이 원통형으로 적층되어 형성된 외측고정자(1)와, 철편을 다수개 원통형으로 적층하여 형성되며 상기 외측고정자(1)와 소정의 간격을 두고 삽입되는 내측고정자(2)와, 상기 내측고정자(2)의 외주면에 일측이 개구되도록 형성된 코일권선홈(2a)에 감기는 권선 코일(3)과, 상기 외측고정자(1)와 내측고정자(2)사이에 삽입되는 마그네트(4)를 포함하여 구성되어 있다.Generally, as shown in FIG. 1, the linear motor includes an outer stator 1 formed by stacking a plurality of iron pieces in a cylindrical shape, and a plurality of cylindrical pieces stacked in a cylindrical shape, and a predetermined distance from the outer stator 1. An inner stator 2 inserted into the coil, a winding coil 3 wound around a coil winding groove 2a formed so that one side is opened on the outer circumferential surface of the inner stator 2, and the outer stator 1 and the inner stator. It is comprised including the magnet 4 inserted between (2).

상기 리니어 모터는 코일(3)에 전류가 인가되면 코일(3)에 흐르는 전류와 마그네트(4)에 의한 상호작용으로 마그네트(4)가 힘을 받아 직선 왕복운동하게 된다.When the current is applied to the coil 3, the linear motor is linearly reciprocated by the magnet 4 being energized by the interaction between the current flowing in the coil 3 and the magnet 4.

도 2는 종래 리니어 모터의 내측고정자를 도시한 것으로 이에 도시된 바와 같이, 종래 리니어 모터의 내측고정자(2)는 각 외측면 중간마다에 소정의 폭과 길이를 갖도록 코일권선홈(2a)이 동일한 위치에 형성된 다수개의 얇은 철심이 원통형인 코어 라이너(미도시)의 외주면 전체에 방사상으로 적층되어 전체적으로는 원통형으로 형성되는 것으로, 그 코일권선홈(2a)에는 폭 만큼 코일(3)이 감겨지게 된다.2 illustrates an inner stator of a conventional linear motor. As shown in FIG. 2, the inner coils 2 of the conventional linear motor have the same coil winding grooves 2a such that the coil winding grooves 2a have a predetermined width and length in the middle of each outer surface. A plurality of thin iron cores formed at positions are radially stacked on the entire outer circumferential surface of the cylindrical core liner (not shown), and are generally cylindrical. The coil 3 is wound around the coil winding groove 2a by a width. .

여기서, 상기 리니어 모터가 작동시 상기 내측고정자(2)에서 코일(3)이 권선되는 코일권선홈(2a)의 양측부에 축방향으로 복수개의 자극이 존재하게 되고, 상기 코일(3)은 자극사이에 위치하게 되어 자화된 내측고정자(2)의 철편(미부호)과 코일(3)간에는 별도의 절연재(5a, 5b, 5c)가 개재되어 있다.Here, when the linear motor is operated, a plurality of magnetic poles are present in the axial direction at both sides of the coil winding groove 2a on which the coil 3 is wound in the inner stator 2, and the coil 3 is a magnetic pole. The insulating material 5a, 5b, 5c is interposed between the iron piece (unsigned) of the magnetized inner stator 2 and the coil 3 which are located between them.

이때, 상기 코일권선홈(2a)은 마그네트(4)의 길이를 최소화하기 위하여 인입구가 좁게 형성되어 단일의 절연체를 그대로 코일권선홈(2a)에 압입시키기가 용이하지 못하여, 통상 각 부위별(도면에선 3개)로 구획된 절연체(5a, 5b, 5c)를 각각 부착하여 왔다.At this time, the coil winding groove (2a) has a narrow inlet in order to minimize the length of the magnet (4) it is not easy to press the single insulator into the coil winding groove (2a) as it is, usually for each part (drawings) Insulators 5a, 5b, 5c partitioned into three) have been attached, respectively.

그러나, 상기와 같은 종래 리니어 모터의 절연구조는, 내측고정자(2)에 형성된 코일권선홈(2a)이 인입구가 좁게 형성되어 수개의 절연체(5a, 5b, 5c)를 구분하여 부착하여야 하므로, 그 절연공정이 난해하고 복잡하여 생산성이 저하되는 문제점이 있었다.However, in the insulation structure of the conventional linear motor as described above, since the coil winding groove 2a formed in the inner stator 2 has a narrow inlet port, several insulators 5a, 5b, and 5c must be separated and attached. Difficult and complicated insulation process has a problem that the productivity is lowered.

따라서, 본 발명은 상기와 같은 종래 리니어 모터의 절연구조가 가지는 문제점을 감안하여 안출한 것으로, 상기 코일권선홈에 절연체를 한 번에 개재시킬 수 있는 리니어 모터의 절연구조를 제공하려는데 그 목적이 있다.Accordingly, an object of the present invention is to provide an insulation structure of a linear motor in which an insulator can be interposed in the coil winding groove at a time. .

제 1도는 종래 리니어 모터의 구성을 보인 종단면도.1 is a longitudinal sectional view showing the configuration of a conventional linear motor.

제 2도는 종래 리니어 모터에 있어서, 내측고정자를 보인 반단면도.2 is a half sectional view showing an inner stator in a conventional linear motor.

제 3도는 본 발명에 의한 리니어 모터의 내측고정자를 보인 반단면도.Figure 3 is a half sectional view showing the inner stator of the linear motor according to the present invention.

제 4a도 및 제 4b도는 본 발명에 의한 리니어 모터의 내측고정자에 있어서, 절연체의 삽입과정을 보인 종단면도.4a and 4b is a longitudinal sectional view showing the insertion process of the insulator in the inner stator of the linear motor according to the present invention.

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

2 : 내측고정자 2a : 코일권선홈2: inner stator 2a: coil winding groove

10 : 절연체10: insulator

이와 같은 본 발명의 목적을 달성하기 위하여, 인입구가 좁은 코일권선홈을 갖는 고정자를 포함하여 구성되는 리니어 모터에 있어서, 상기 코일권선홈의 내주면에 밀착되는 절연체를 한 번에 삽입시키기 위하여 상기 절연체를 코일권선홈의 인입구보다 작게 접철되었다가 복원되어 밀착되는 단일의 탄성부재로 성형하는 것을 특징으로 하는 리니어 모터의 절연구조가 제공된다.In order to achieve the object of the present invention, in the linear motor comprising a stator having a narrow coil winding groove of the inlet, the insulator is inserted to insert the insulator in close contact with the inner peripheral surface of the coil winding groove at once. An insulation structure of a linear motor is provided, which is molded into a single elastic member which is folded and smaller than the inlet of the coil winding groove and is brought into close contact with the coil winding groove.

이하, 본 발명에 의한 리니어 모터의 절연구조를 첨부도면에 도시된 일실시예에 의거하여 상세하게 설명한다.Hereinafter, the insulating structure of the linear motor according to the present invention will be described in detail based on the embodiment shown in the accompanying drawings.

도 3은 본 발명에 의한 리니어 모터의 내측고정자를 보인 반단면도이고, 도 4a 및 도 4b는 본 발명에 의한 리니어 모터의 내측고정자에 있어서, 절연체의 삽입과정을 보인 종단면도이다.Figure 3 is a half sectional view showing an inner stator of the linear motor according to the present invention, Figures 4a and 4b is a longitudinal sectional view showing the insertion process of the insulator in the inner stator of the linear motor according to the present invention.

이에 도시된 바와 같이 본 발명에 의한 리니어 모터의 절연구조는, 원통형인 외측고정자(도 1에 도시)(1)의 내부에 원통형인 내측고정자(2)가 소정 간격을 두고 삽입 결합되며, 그 외측고정자(1)와 내측고정자(2)의 사이에는 마그네트(도 1에 도시)(4)가 개재되는데, 상기 내측고정자(2)의 외주면에는 인입구가 좁은 코일권선홈(2a)이 형성되고, 그 코일권선홈(2a)의 외표면에는 탄성을 지닌 단일의 절연체(10)가 밀착되어 코일권선홈(2a)과 코일(3)간의 접촉면을 절연시키게 된다.As shown therein, the insulation structure of the linear motor according to the present invention includes a cylindrical inner stator 2 inserted into and coupled at a predetermined interval inside the cylindrical outer stator 1 (shown in FIG. 1). A magnet (shown in FIG. 1) 4 is interposed between the stator 1 and the inner stator 2, and a coil winding groove 2a having a narrow inlet is formed on the outer circumferential surface of the inner stator 2, and A single insulator 10 having elasticity is in close contact with the outer surface of the coil winding groove 2a to insulate the contact surface between the coil winding groove 2a and the coil 3.

즉, 상기 절연체(10)는 전체적으로 'ㄷ'자 단면형상으로 형성되나, 그 절연체(10)가 탄성을 지닌 단일의 재질로 성형되어 중간부위가 자유롭게 절곡되므로, 상기 절연체(10)의 삽입시는 그 중간부위가 외부의 힘에 의해 수차례 접철되었다가 삽입완료후에는 다시 원형으로 복원되게 된다.That is, the insulator 10 is formed in a cross-sectional shape of the letter 'C' as a whole, but since the insulator 10 is formed of a single material having elasticity, the middle part is bent freely, so that the insulator 10 is inserted when The intermediate part is folded several times by external force and then restored to its original shape after insertion.

이때, 상기 절연체(10)가 내측고정자(2)의 코일권선홈(2a)에 견고하게 고정되도록 하기 위하여는, 절연체(10)의 전체형상이 코일권선홈(2a)보다 작지않게 성형되는 것이 바람직하다.At this time, in order to ensure that the insulator 10 is firmly fixed to the coil winding groove 2a of the inner stator 2, it is preferable that the entire shape of the insulator 10 is not formed smaller than the coil winding groove 2a. Do.

도면중 종래와 동일한 부분에 대하여는 등일한 부호를 부여하였다.In the drawings, the same parts as in the prior art are given the same reference numerals.

상기와 같은 본 발명에 의한 리니어 모터의 절연구조는, 먼저 작업자가 'ㄷ'자 단면형상의 절연체(10) 상하부를 가압하게 되면, 그 절연체(10)의 중간부가 눌려지면서 수차례 절곡 및 접철되어 전체적인 절연체(10)의 두께가 코일권선홈(2a)의 인입구 보다 얇아지게 되고, 이렇게 두께가 얇아진 절연체(10)를 코일권선홈(2a)에 밀어넣으면 절연체(10)가 원형으로 복원되어 코일권선홈(2a)에 밀착되게 된다.In the insulation structure of the linear motor according to the present invention as described above, when the operator first presses the upper and lower portions of the insulator 10 having a 'C' cross-section, the middle portion of the insulator 10 is pressed and folded several times. The overall thickness of the insulator 10 becomes thinner than the inlet of the coil winding groove 2a. When the insulator 10 having this thickness is pushed into the coil winding groove 2a, the insulator 10 is restored to a circular shape and the coil winding It comes in close contact with the groove 2a.

이와 같이 상기 코일권선홈(2a)의 외표면과 그 코일권선홈(2a)에 감기는 코일(3)의 사이를 하나의 절연체(10)로 일괄 절연하게 되어 작업공수를 현저하게 감소시킬 수 있게 되는 것이다.In this way, the outer surface of the coil winding groove 2a and the coil 3 wound on the coil winding groove 2a are collectively insulated with one insulator 10 so that the work man-hour can be significantly reduced. Will be.

이상에서 설명한 바와 같이 본 발명에 의한 리니어 압축기의 절연구조는, 상기 고정자의 외주면에 형성되는 코일권선홈의 내주면에 그 코일권선홈의 인입구보다 작게 접철되었다가 복원되는 탄성재질인 단일의 절연체를 밀착시켜 코일권선홈과 코일을 절연시킴으로써, 절연작업의 공수를 절감하여 생산성이 현저하게 향상된다.As described above, the insulation structure of the linear compressor according to the present invention has a single insulator, which is an elastic material that is folded and restored smaller than the inlet of the coil winding groove to the inner circumferential surface of the coil winding groove formed on the outer circumferential surface of the stator. By insulating the coil winding groove and the coil, the man-hour of the insulation work is reduced and productivity is remarkably improved.

Claims (1)

인입구가 좁은 코일권선홈을 갖는 고정자를 포함하여 구성되는 리니어 모터에 있어서, 상기 코일권선홈의 내주면에 밀착되는 절연체를 한 번에 삽입시키기 위하여 상기 절연체를 코일권선홈의 인입구보다 작게 접철되었다가 복원되어 밀착되는 단일의 탄성부재로 성형하는 것을 특징으로 하는 리니어 모터의 절연구조.In a linear motor comprising a stator having a narrow coil winding groove inlet, the insulator is folded and smaller than the inlet of the coil winding groove in order to insert the insulator in close contact with the inner circumferential surface of the coil winding groove at one time. Insulating structure of a linear motor, characterized in that the molded into a single elastic member to be in close contact.
KR1019970069362A 1997-12-16 1997-12-16 Insulation structure of linear motor KR100253223B1 (en)

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KR20030054991A (en) * 2001-12-26 2003-07-02 주식회사 엘지이아이 Apparatus for protecting vibraton/noise of reciprocating motor

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Publication number Priority date Publication date Assignee Title
CN102656777B (en) * 2009-12-23 2014-07-09 丰田自动车株式会社 Stator structure for rotary electric machine and method for mounting stator

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Publication number Priority date Publication date Assignee Title
KR20030054991A (en) * 2001-12-26 2003-07-02 주식회사 엘지이아이 Apparatus for protecting vibraton/noise of reciprocating motor

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