KR20170053249A - Divided core - Google Patents

Divided core Download PDF

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Publication number
KR20170053249A
KR20170053249A KR1020150155496A KR20150155496A KR20170053249A KR 20170053249 A KR20170053249 A KR 20170053249A KR 1020150155496 A KR1020150155496 A KR 1020150155496A KR 20150155496 A KR20150155496 A KR 20150155496A KR 20170053249 A KR20170053249 A KR 20170053249A
Authority
KR
South Korea
Prior art keywords
insulating
core
insulating film
coil
film
Prior art date
Application number
KR1020150155496A
Other languages
Korean (ko)
Inventor
황근식
김효진
최홍록
Original Assignee
엘에스메카피온 주식회사
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 엘에스메카피온 주식회사 filed Critical 엘에스메카피온 주식회사
Priority to KR1020150155496A priority Critical patent/KR20170053249A/en
Publication of KR20170053249A publication Critical patent/KR20170053249A/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
    • H02K1/12—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
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • 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
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only

Abstract

The divided core includes a core body including a first core portion, a second core portion protruding from an inner side surface of the first core portion, and a third core portion extending from an end of the second core portion, the core body being made of a magnetic material; A bobbin made of an insulating material and including a first insulating portion disposed on the inner surface of the first core portion, a second insulating portion insulating the second core portion, and a third insulating portion covering the third core portion; A first insulating film coupled to one side surface of the first insulating portion and one side surface of the third insulating portion; And a second insulating film coupled to the other side surface of the first insulating portion facing the one side surface and the other side surface opposite to the one side surface of the third insulating portion.

Description

DIVIDED CORE}

The present invention relates to a split core, and more particularly to a split core in which the coil is improved in insulation characteristics of the coil while minimizing the area of the insulation film.

Generally, a motor is defined as a device that obtains rotational force using electric energy, and the motor is widely applied to various products requiring rotational force.

The motor includes a stator having a coil wound thereon and a rotor disposed and rotated inside the fixed stator.

In recent years, a plurality of divided cores, which can wind a coil by using a winding machine, have been widely used. However, in recent years, A segmented core type stator in which the stator core is assembled in a ring shape has been developed and used. The motor having the divided core type stator including the divided cores has the advantages of high productivity and low manufacturing cost.

Korean Patent No. 10-1402938 discloses a split core (registered on May 27, 2014) having an escape prevention insulator, which is formed by inserting an insulator having a latching portion into a core and rotating the divided core in a rotating machine Thereby preventing the insulator from separating from the core.

On the other hand, in the case of the divided core type stator including the divided cores, the divided cores are arranged in a circle, and thereby, the coils disposed in the respective divided cores are disposed in close proximity to each other. In order to prevent short- Insulating paper and the like.

Korean Patent Laid-Open Publication No. 10-2010-0079027 discloses a stator divided core insulating sheet and an insulating method thereof (published on July 8, 2010) in which an intermediate surface of an insulating sheet is attached to a divided core block, After the winding coils are mounted, the excess portions of the insulating paper are superimposed on each other on the outer side of the coil. Then, the inserting portions formed on either one of the extra portions are simply inserted into the cutout grooves formed on the other extra portion So that the process can be greatly simplified, and a cost reduction can be expected by eliminating unnecessary consumables.

However, in the divided core insulating paper of the stator and the insulating method thereof, the insulating paper is first disposed in the divided core block, the coil is wound on the insulating paper, and the insulating paper is inserted and inserted into the cut- It is inevitable to use an insulating paper having a large area, which causes a problem that the production cost is increased.

Korean Registered Patent No. 10-1402938, a split core with an escape prevention insulator (registered on May 27, 2014) Korean Patent Laid-Open Publication No. 10-2010-0079027, split core insulating paper of stator and insulating method thereof (disclosed on July 8, 2010)

The present invention is characterized in that a coil is wound on a bobbin for inserting a core body, a coil exposed from the bobbin is covered with an insulating film to minimize the area of the insulating film, thereby greatly reducing the production cost, Lt; / RTI >

In one embodiment, the divided core includes: a core body including a first core portion, a second core portion protruding from an inner surface of the first core portion, and a third core portion extending from an end of the second core portion; A bobbin made of an insulating material and including a first insulating portion disposed on the inner surface of the first core portion, a second insulating portion insulating the second core portion, and a third insulating portion covering the third core portion; A first insulating film coupled to one side surface of the first insulating portion and one side surface of the third insulating portion; And a second insulating film coupled to the other side surface of the first insulating portion facing the one side surface and the other side surface opposite to the one side surface of the third insulating portion.

And the divided core further includes a coil wound around the second core portion.

A first inserting groove and a second inserting groove for inserting the first insulating film are formed on the one side face of the first insulating portion and the one side face of the third insulating portion of the divided core respectively, And a third inserting groove and a fourth inserting groove for inserting the second insulating film are formed on the side surface and the other side surface of the third insulating portion, respectively.

The first through fourth insertion grooves of the split core are formed in a slit shape into which the first insulation film and the second insulation film are inserted.

And an adhesive for attaching the first insulating film and the second insulating film of the split core to the first insulating portion and the third insulating portion.

And a part of the first insulating film and the second insulating film of the divided core are attached to the first insulating part via an adhesive agent, and a part of the first insulating film and the second insulating film is attached to the third insulating part And inserted and fixed in the formed insertion groove.

The first coil insulation film of the split core includes a first insulation film portion facing the coil, a second coil insulation film portion coupled to the first insulation portion, and a third coil insulation film portion coupled to the third insulation portion Wherein the second coil insulation film includes a fourth insulation film portion facing the coil, a fifth coil insulation film portion coupled to the first insulation portion, and a sixth coil insulation film portion coupled to the third insulation portion .

The divided core according to the present invention can reduce the production cost by minimizing the area of the insulating film by covering the coil exposed from the bobbin with the insulating film after winding the coil on the bobbin for inserting the core body, .

1A is a perspective view of a segmented core according to one embodiment of the present invention.
1B is an exploded perspective view of a segmented core according to an embodiment of the present invention.
FIG. 2 is a perspective view of the core body of FIG.
3 is an exploded perspective view showing a bobbin of a divided core according to an embodiment of the present invention.
4 is a front view of the bobbin.
5 is a perspective view illustrating first and second insulating films according to an embodiment of the present invention.
6 is a view showing a combination of the core body of the split core, the bobbin, and the first and second insulating films.

BRIEF DESCRIPTION OF THE DRAWINGS The invention, which is set forth below, may be embodied with various changes and may have various embodiments, and specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, terms including the first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

1A is a perspective view of a segmented core according to one embodiment of the present invention. 1B is an exploded perspective view of a segmented core according to an embodiment of the present invention.

1A and 1B, a split core 600 includes a core body 100, a bobbin 200, a first insulating film 300, and a second insulating film 400. In addition, the divided core 600 may further include a coil 500 wound on the bobbin 200 and insulated by the first and second insulating films 300 and 400.

FIG. 2 is a perspective view of the core body of FIG.

Referring to FIG. 2, the core body 100 includes a first core portion 110, a second core portion 120, and a third core portion 130.

In one embodiment of the present invention, the core body 100 including the first to third core portions 110, 120 and 130 may be formed of, for example, a magnetic material, Core pieces 110, 120, and 130 may be stacked. The first to third core portions 110, 120, and 130 forming the core body 100 are integrally formed, for example.

The first core portion 110 may be formed, for example, in a curved plate shape.

A protrusion 112 is formed on one of the two opposite side surfaces in the width direction defined in FIG. 2 of the first core portion 110, and a protrusion 112 is formed on the other side surface of the first core portion 110, The groove 114 is formed.

In one embodiment of the present invention, the first core portion 110 is formed with a first length along the length direction.

The second core part 120 protrudes in a rectangular column shape along the longitudinal direction from the center of the inner surface of the first core part 110. The length of the second core part 120 is formed to be substantially equal to the first length of the first core part 110 and the width of the second core part 120 is set such that the first Is narrower than the width of the core portion 110.

The third core portion 130 is formed at the end of the second core portion 120 and the third core portion 130 extends in the width direction from both side surfaces of the second core portion 120. The outer surface of the outer surface of the second core portion 120 is formed in the shape of a concave curved plate.

In an embodiment of the present invention, a coil 500 is wound on a portion corresponding to the second core portion 120 by a winding machine or the like as shown in FIG. 1A.

3 is an exploded perspective view showing a bobbin of a divided core according to an embodiment of the present invention. 4 is a front view of the bobbin.

Referring to FIGS. 1A, 3 and 4, the bobbin 200 is formed by assembling a pair of mutually symmetrical shapes. The pair of bobbins 200 are respectively inserted into the second core portion 120 of the core body 100 in the longitudinal direction on both sides of the core body 100.

The bobbin 200 is made of an insulating material such as synthetic resin, and the bobbin 200 electrically insulates the core body 100 and the coil 500.

The pair of bobbins 200 assembled to the core body 100 includes a first insulating portion 210, a second insulating portion 220, and a third insulating portion 230.

The first insulation portion 210 is disposed to face the inner surface of the first core portion 110 of the core body 100 and the first insulation portion 210 is in contact with the inner surface of the first core portion 110 And covers the first core portion 110.

In one embodiment of the present invention, the first insulation portion 210 is formed to have a second length that is longer than the first length of the first core portion 110, And is insulated by one core portion 110.

Referring to FIGS. 3 and 4, a first side surface 212 and a second side surface 214 opposite to the first side surface 212 are formed in the width direction defined in FIG. 3 of the first insulating portion 210 do.

The first side surface 212 of the first insulation portion 210 is formed with a slit-shaped first insertion groove 213 formed in the longitudinal direction thereof and the second side surface 214 of the first insulation portion 210 is formed with A slit-shaped second insertion groove 215 formed to be long in the longitudinal direction is formed.

The second insulation part 220 extends from the first insulation part 210 along the side surface of the second core part 120 of the core body 100 and the second insulation part 220 extends from the side of the core body 100 The second core portion 120 and the coil 500 are electrically insulated from each other by covering the second core portion 120. [

The third insulating portion 230 extends from the second insulating portion 220 and covers the inner surface of the third core portion 130.

3 and 4, a third side surface 232 and a fourth side surface 234 opposed to the third side surface 232 in the width direction defined in FIG. 3 of the third insulating portion 230 .

The third side surface 232 of the third insulating part 230 is formed with a slit-shaped third insertion groove 233 formed in the longitudinal direction and the fourth side surface 234 of the third insulating part 230 is formed with A fourth insertion groove 235 formed in the longitudinal direction is formed.

5 is a perspective view illustrating first and second insulating films according to an embodiment of the present invention. 6 is a view showing a combination of the core body of the split core, the bobbin, and the first and second insulating films.

The first insulating film 300 is electrically connected to the first side 212 of the first insulating portion 210 of the bobbin 200 and the third side of the third insulating portion 210 of the bobbin 200 230 to electrically isolate the coils 500 disposed on the second insulator 220 from the outer conductor or adjacent coils.

The first insulating film 300 includes a first insulating film portion 310, a second insulating film portion 320, and a third insulating film portion 330.

The first insulating film part 310 is disposed to face the coil 500 and the first insulating film part 310 functions to insulate the coil 500. [

The second insulating film part 320 is extended or bent from one side edge of the first insulating film part 310 and the second insulating film part 320 is fixed to the bobbin 200 .

The second insulating film 320 extending or bent from the first insulating film part 310 is inserted into the first insertion groove 213 formed in the first side wall 212 of the first insulation part 210 of the bobbin 200, The second insulating film portion 320 is fixed in the first insertion groove 213.

The second insulating film part 320 may be attached to the first insulating part 210 of the bobbin 200 through an adhesive or the like in the first insertion groove 213. In this case,

The third insulating film part 330 is extended or bent from the other side opposite to one side edge of the first insulating film part 310 formed with the second insulating film part 320, And serves to fix the first insulating film part 310 to the third insulating part 230 of the bobbin 200.

The third insulating film part 330 extended or bent from the first insulating film part 310 is inserted into the third inserting groove 233 formed in the third side wall 232 of the third insulating part 320 of the bobbin 200, .

The third insulating film portion 330 may be attached to the third insulating portion 230 of the bobbin 200 through an adhesive or the like in the third inserting groove 233. In this case,

In order to prevent the first insulating film 300 from being separated from the bobbin 200, the second and third insulating film portions 320 and 330 may be formed on the first insulating film portion 310, And the second and third insulating films 320 and 330 may be formed so as not to be parallel to each other.

Referring to FIGS. 1A, 5 and 6, a second insulating film 400 is formed on the second side 214 of the first insulating portion 210 of the bobbin 200 and the third insulating portion 210 of the bobbin 200 230 to electrically isolate the coils 500 disposed on the second insulation 220 from the outer conductor or adjacent coils.

The second insulating film 400 includes, for example, a fourth insulating film portion 410, a fifth insulating film portion 420, and a sixth insulating film portion 430.

The fourth insulating film portion 410 is arranged to face the coil 500. [

The fifth insulating film part 420 is extended or bent from one side edge of the fourth insulating film part 410 and the fifth insulating film part 420 extended or bent from the fourth insulating film part 410 is bent The fifth insulating film portion 420 is fixed in the second insertion groove 215 while being inserted into the second insertion groove 215 formed in the second side wall 214 of the first insulation portion 210 of the first insulation film 210 .

In an embodiment of the present invention, the fifth insulating film portion 420 may be attached to the second insertion groove 213 through an adhesive or the like.

The sixth insulating film part 430 is extended or bent from the other side opposite to one side edge of the fourth insulating film part 410 formed with the fifth insulating film part 420, The first inserting groove 430 is inserted into the fourth inserting groove 235 formed in the fourth side wall 234 of the third insulating portion 320 of the bobbin 200.

In an embodiment of the present invention, the sixth insulating film portion 430 may be attached to the fourth insertion groove 235 through an adhesive or the like.

In order to prevent the second insulating film 400 from being separated from the bobbin 200, the fifth and sixth insulating film portions 420 and 430 may be formed on the fourth insulating film portion 410, And can be extended or bent at an angle of an acute angle mutually. In addition, the second and third insulating films 420 and 430 may be formed so as not to be parallel to each other.

Although it is shown and described that the first insulating film 300 and the second insulating film 400 are inserted and assembled into the first to fourth insertion grooves 213, 215, 233, 235 formed in the bobbin 200 in the embodiment of the present invention The first and second insulating films 300 and 400 are electrically connected to the first insulating portion 210 and the third insulating portion 230 of the bobbin 200 through the adhesive or the like without using the first to fourth insertion grooves 213, 215, As shown in Fig.

Meanwhile, in the embodiment of the present invention, the first insulating film 300 and the second insulating film 400 are inserted into the first to fourth insertion grooves 213, 215, 233, 235 formed in the bobbin 200 and assembled, A part of the first and second insulating films 400 may be attached to the first insulating portion 210 and the third insulating portion 230 of the bobbin 200 through an adhesive or the like, A part of the insulating film 400 may be inserted and fixed in slit-shaped insertion grooves formed in the first and third insulating parts 210 and 230.

In an embodiment of the present invention, one side of the first insulating film 300 and the second insulating film 400 may be integrally formed with the first insulating part 210 or the third insulating part 230 formed on the bobbin 200 The first insulating film 300 and the second insulating film 400 are bent and inserted into an insertion groove formed in the first insulating portion 210 or the third insulating portion 230 to be fixed Also,

A plurality of divided cores 600 according to an embodiment of the present invention may be assembled into a cylindrical shape to constitute a stator, and a motor may be realized by disposing a rotor in the hollow of the stator including the divided cores 600.

As described above in detail, after the coil is wound on the bobbin for inserting the core body, the coil exposed from the bobbin is covered with the insulating film to minimize the area of the insulating film, thereby greatly reducing the production cost, Lt; / RTI >

It should be noted that the embodiments disclosed in the drawings are merely examples of specific examples for the purpose of understanding, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100 ... core body 200 ... bobbin
300 ... first insulating film 400 ... second insulating film
500 ... coil 600 ... split core

Claims (7)

A core body including a first core portion, a second core portion protruding from an inner surface of the first core portion, and a third core portion extending from an end of the second core portion;
A bobbin made of an insulating material and including a first insulating portion disposed on the inner surface of the first core portion, a second insulating portion insulating the second core portion, and a third insulating portion covering the third core portion;
A first insulating film coupled to one side surface of the first insulating portion and one side surface of the third insulating portion; And
And a second insulating film joined to the other side surface of the first insulating portion opposite to the one side surface and the other side surface opposite to the one side surface of the third insulating portion. The method according to claim 1,
And a coil wound on the second core portion. The method according to claim 1,
A first inserting groove and a second inserting groove for inserting the first insulating film are formed on the one side surface of the first insulating portion and the one side surface of the third insulating portion,
And a third inserting groove and a fourth inserting groove into which the second insulating film is inserted are respectively formed on the other side surface of the first insulating portion and the other side surface of the third insulating portion. The method of claim 3,
Wherein the first to fourth insertion grooves are formed in a slit shape into which the first insulating film and the second insulating film are inserted. The method according to claim 1,
And an adhesive for attaching the first insulating film and the second insulating film to the first insulating portion and the third insulating portion. The method according to claim 1,
Wherein a part of the first insulating film and the second insulating film is attached to the first insulating part via an adhesive agent, and a part of the first insulating film and the second insulating film is inserted into the insertion hole And is fixedly inserted into the core. The method according to claim 1,
Wherein the first coil insulation film includes a first insulation film portion facing the coil, a second coil insulation film portion coupled to the first insulation portion, and a third coil insulation film portion coupled to the third insulation portion,
Wherein the second coil insulation film includes a fourth insulation film portion facing the coil, a fifth coil insulation film portion coupled to the first insulation portion, and a sixth coil insulation film portion coupled to the third insulation portion core.
KR1020150155496A 2015-11-06 2015-11-06 Divided core KR20170053249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150155496A KR20170053249A (en) 2015-11-06 2015-11-06 Divided core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150155496A KR20170053249A (en) 2015-11-06 2015-11-06 Divided core

Publications (1)

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KR20170053249A true KR20170053249A (en) 2017-05-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019132338A1 (en) * 2017-12-26 2019-07-04 엘지이노텍 주식회사 Stator and motor including same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019132338A1 (en) * 2017-12-26 2019-07-04 엘지이노텍 주식회사 Stator and motor including same
CN111527667A (en) * 2017-12-26 2020-08-11 Lg伊诺特有限公司 Stator and motor comprising same
EP3734802A4 (en) * 2017-12-26 2021-02-17 LG Innotek Co., Ltd. Stator and motor including same
JP2021509565A (en) * 2017-12-26 2021-03-25 エルジー イノテック カンパニー リミテッド Stator and motor including it
CN111527667B (en) * 2017-12-26 2022-10-25 Lg伊诺特有限公司 Stator and motor comprising same
US11496012B2 (en) 2017-12-26 2022-11-08 Lg Innotek Co., Ltd. Stator and motor including same

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