KR102011819B1 - A stator and a motor having the same - Google Patents

A stator and a motor having the same Download PDF

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Publication number
KR102011819B1
KR102011819B1 KR1020130024852A KR20130024852A KR102011819B1 KR 102011819 B1 KR102011819 B1 KR 102011819B1 KR 1020130024852 A KR1020130024852 A KR 1020130024852A KR 20130024852 A KR20130024852 A KR 20130024852A KR 102011819 B1 KR102011819 B1 KR 102011819B1
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KR
South Korea
Prior art keywords
layer
unit
unit core
core
stator
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KR1020130024852A
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Korean (ko)
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KR20140111149A (en
Inventor
조창흠
민병욱
김현도
김영진
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엘지전자 주식회사
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Priority to KR1020130024852A priority Critical patent/KR102011819B1/en
Publication of KR20140111149A publication Critical patent/KR20140111149A/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
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • 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
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation

Abstract

The present invention includes a first layer composed of a plurality of unit cores and a second layer adjacent to the first layer and composed of a plurality of unit cores, wherein the unit core has a left-right asymmetric shape and the first layer The unit core constituting the unit core and the unit core constituting the second layer are provided with a stator and a motor including the same.

Description

A stator and a motor having the same

The present invention relates to a stator and a motor including the same, and more particularly, to a stator and a motor including the improved performance and efficiency.

The motor according to the present invention may be a motor applied to home appliances such as a washing machine, but the application example is not limited thereto.

In general, the motor transmits the rotational force of the rotor to the rotary shaft, the rotary shaft drives the load. For example, the rotating shaft may be connected to the drum of the washing machine to drive the drum, and may be connected to the fan of the refrigerator to drive the fan to supply cold air to a required space.

On the other hand, in such a motor, the rotor is rotated by electromagnetic interaction with the stator. To this end, a coil is wound around the stator, and as the current is applied to the coil, the rotor rotates with respect to the stator.

The stator includes a stator core, which is made of a conductor. In addition, the stator is a configuration that is generally fixed to the object. Therefore, fixing means are required to fix the stator to an object such as a motor housing, a motor bracket, and a tub of a washing machine.

In addition, a coil is wound around the stator, and insulation means is required between the coil and the stator core. In addition, there is a need for a tab terminal structure for applying power to the coil. Therefore, the stator core needs an insulating structure from the above-mentioned fastening means, coils, and tab terminals. For this insulating structure, an insulator may be provided.

On the other hand, the stator core may be made in one piece or a plurality of split cores. Split cores can automate the winding of coils on the stator teeth, reducing the cost of manufacturing the motor.

Conventionally, in manufacturing a motor, when a core of a stator is manufactured from a plurality of split cores, a method of welding with adjacent split cores in order to join each split core to each other has been used. However, when the split core is joined by welding according to the prior art, there is a problem that the inconvenience of manufacturing due to welding occurs.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a motor that can increase the assembly efficiency of the stator made of the split core and the manufacturing efficiency of the motor.

The present invention includes a first layer composed of a plurality of unit cores and a second layer composed of a plurality of unit cores adjacent to the first layer, in order to achieve the above object, the unit core has asymmetrical shape The unit core constituting the first layer and the unit core constituting the second layer are provided with a stator and a motor including the same.

In addition, the unit core may include an arc-shaped core base and teeth extending from the core base and coils wound thereon, and the teeth may extend in a position eccentrically from the center of the core base to the first side.

In addition, the core base of the unit core may have a through hole formed at a position eccentric to one side.

The through hole is preferably formed at a position eccentric to the second side in the opposite direction to the first side.

Meanwhile, the first layer includes a first unit core, the second layer includes a second unit core and a third unit core adjacent to the second unit core, and the first unit core includes the second unit core. It may be disposed over the unit core and the third unit core.

Preferably, the teeth of the first unit core are aligned with the teeth of the second unit core.

Preferably, the through hole of the first unit core is aligned with the through hole of the third unit core.

In addition, the plurality of unit cores adjacent to the second layer and comprising a plurality of unit cores, and the plurality of unit cores constituting the third layer may be the same as the arrangement of the unit cores of the first layer.

The insulator may further include an insulator surrounding the teeth, and the insulator may have a post inserted into a coupling groove formed in the tooth.

In addition, the present invention comprises the steps of: providing a plurality of unit cores asymmetrically, disposing the plurality of unit cores along the circumferential direction to form a first layer, the plurality of unit cores on the first layer And arranging the second layer along the circumferential direction, wherein the unit core constituting the second layer is inverted left and right with the unit core constituting the first layer. It provides a method of manufacturing.

In this case, the unit core may include an arc-shaped core base and a tooth extending at a position eccentrically to one side from the center of the core base.

The unit core has a through hole formed at a position eccentrically to one side, and the first unit core of the first layer is disposed over the second unit core and the second unit core of the second layer and the first unit core. The teeth of the unit core and the second unit core may be arranged to align, and the through holes of the first unit core and the third unit core may be arranged to align.

The method may include coupling the first layer and the second layer by coupling the coupling member to the through hole. The coupling member may be a rivet.

And the present invention provides a motor including the stator described above.

The present invention also provides a home appliance comprising the stator and / or motor described above.

The home appliance may be a washing machine or a dryer. In addition, the motor may rotate the drum of the washing machine or dryer.

The present invention has the advantage of reducing the manufacturing cost required for manufacturing the unit core as a structure for laminating a plurality of layers using the unit core of the same shape.

In addition, by simply combining the plurality of layers without welding, there is an advantage that can reduce the cost required for welding.

1 is a perspective view showing a stator of a motor according to an embodiment of the present invention.
2 and 3 are perspective views showing a combination of a layer constituting the stator and a unit core constituting each layer.
4 is a plan view showing a unit core constituting the first layer.
5 is a plan view showing a unit core constituting the second layer.
6 and 7 are perspective views showing the insulator coupled to the teeth of the stator.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

The motor according to an embodiment of the present invention includes a stator in which a coil is wound. In addition, the stator may include a rotor that rotates by electromagnetic action.

The rotor may include a conductor or a magnet and is rotatably provided by an electromagnetic action with a coil wound on the stator. In addition, a rotation shaft is connected to the center of the rotor, and the rotation shaft is coupled to the motor. Since the structure of the rotor is a known configuration, a detailed description thereof will be omitted.

Hereinafter, with reference to the drawings, looks at the specific configuration and structure of the stator according to an embodiment of the present invention.

Referring to FIG. 1, the stator 1 includes a core portion 101 and a tooth portion 103. In addition, the insulator 200 surrounding the tooth part 103 is included. A coil (not shown) is wound around the tooth part 103. The insulator 200 is preferably made of an electrically insulated material, for example, may be a plastic material.

The stator 1 has a structure in which a plurality of layers L1, L2, and L3 are stacked. The plurality of layers L1, L2, and L3 may be coupled to each other by at least one of the insulator 200 and the rivet 300. Teeth of each of the layers L1, L2, and L3 is stacked to form a tooth portion 103, and a core base is stacked to form a core portion 101. The structure in which the plurality of layers L1, L2, and L3 are combined will be described later.

2 to 5, the unit core constituting the layer and the coupling structure of the layer will be described in detail.

The stator 1 according to an embodiment of the present invention includes a plurality of layers L1, L2, and L3. In addition, each of the layers L1, L2, and L3 includes a plurality of unit cores 110, 120, and 130.

According to the present invention, the unit cores 110, 120, 130 constituting the layers L1, L2, and L3 may be manufactured in the same shape. In addition, two adjacent layers L1 and L2 are designed to have different arrangements of the unit cores 110 and 120.

Referring to FIG. 4, the unit core 110 includes a core base 111 and a tooth extending from the core base 111. In addition, a coil is wound around the tooth 113. The unit cores 110, 120, and 130 constituting each of the layers L1, L2, and L3 are stacked, and the stacked teeth 113, 123, and 133 are formed by the teeth portion of the stator 1. 103).

The core base 111 has an arc shape having a predetermined angle. The teeth 113 extend from the core base 111. In the case of an inner rotor type in which a rotor is provided inside the stator, the teeth 113 are formed extending from the inside of the core base 111 and an outer rotor in which the rotor is provided outside the stator. In the case of the type, the tooth 113 is formed to extend outside the core base 111. In the present invention will be described for the case of the inner rotor type, the stator structure according to an embodiment of the present invention can be applied to the outer rotor type, of course.

According to an embodiment of the present invention, the unit core 110 has a shape of left and right asymmetric. Specifically, the tooth 113 may extend in a position eccentrically toward the first side from the center of the core base 111. Therefore, the unit core 110 has a 'Γ' shape as a whole.

In other words, each of the core base 111 and the tooth 113 are symmetrical in shape, but the unit core 110 is provided at a position in which the teeth 113 are eccentric to the first side of the core base 111. It will have asymmetrical shape as a whole.

Meanwhile, the core base 111 has a through hole 117 into which the rivet 300 to be described later is inserted. In this case, the through hole 117 is preferably formed at a position eccentric to one side from the center of the core base 111. At this time, the eccentric direction is preferably the second side opposite to the first side. Referring to FIG. 4, the tooth 113 extends at a position eccentrically from the center of the core base 111 to the left side (first side), and the through hole 117 is formed in the nose of the base 111. It is formed at a position eccentric from the center to the right side (second side). The tooth 113 extends radially from the core base 111. In the case of the inner rotor type, the teeth 113 extend in the center direction of the stator, and in the case of the outer rotor type, the teeth 113 extend in the outer direction of the stator.

In addition, at least one coupling hole 115 may be formed in the tooth 113. Preferably, two coupling holes 115 are formed in the tooth. The coupling hole 115 is formed to combine a plurality of stacked layers. Posts formed in the insulator 200 to be described later may be inserted into the coupling holes 115, and a plurality of rare layers may be coupled by the posts 215 (see FIG. 6) 225 (see FIG. 7).

2 and 3, the stator 1 includes a plurality of layers L1, L2, and L3. In this case, the stator may be composed of a total of N layers, the unit core 110 constituting layer i (L1) is a unit core constituting layer (2+) (i + 1) which is an adjacent layer ( 120 and the left and right are inverted (where N is a natural number of 2 or more and i is a natural number of 1 or more). In addition, the unit core 110 constituting layer i (L1) is layer (i + 2) L3. The same unit core as that of the unit core 130 constituting) is used. That is, the unit core constituting layer i (L1) is completely overlapped with the unit core 130 constituting layer (3) (i + 2). Similarly, the unit cores constituting layer (i + 1) (L2) are completely overlapped with the unit cores constituting layer (i + 3). That is, odd-numbered layers L1 and L3 are all composed of unit cores of the same type, and even-numbered layers L2 are all composed of unit cores of the same type. On the other hand, the unit cores constituting the odd numbered layer and the even numbered layer have symmetrical shapes. In other words, if the unit core constituting the odd number layer is reversed left and right, the even number layer is overlapped.

FIG. 4 is a diagram illustrating a unit core 110 constituting layer i (L1), and FIG. 5 is a diagram illustrating a unit core 120 constituting layer (L2) (i + 1). 4 and 5, the unit core 110 constituting layer i (L1) and the unit core 120 constituting layer (i + 1) L2 are inverted from each other. Have That is, when the left and right sides of the unit core 110 constituting the layer I (L1) are inverted, the shape becomes the same as that of the layer L2 (i + 1). In detail, in the unit core 110 constituting the layer i, the teeth 113 are eccentrically extended from the core base 111 to the first side (left), and the layer (i + 1) layer L2 The unit core 120 constituting the teeth extends while the teeth 123 are eccentric to the second side (right side) of the core base 111. The second side means a direction opposite to the first side.

Substantially, the unit core 110 constituting layer i (L1) and the unit core 120 constituting layer (2+) (i + 1) have the same shape and constitute layer i (L1) ( In the case of configuring layer i + 1), the same unit core as that of the unit core 110 used in layer i is turned upside down so that the left and right sides are reversed.

Meanwhile, referring to FIG. 2, the stator 1 is stacked by combining N layers, and has a predetermined height by stacking the N layers. As described above, each of the N layers L1, L2, and L3 includes a plurality of unit cores 110, 120, and 130. In the N layers, the first unit core C1 of the layer i of layer L1 and the second unit core C2 of the layer i of layer (i + 1) are arranged such that the teeth are aligned in the height direction. That is, the teeth of the first unit core C1 and the teeth of the second unit core C3 are arranged to overlap each other. Of course, the second unit core C2 is disposed adjacent to the bottom (or top) of the first unit core C1.

In addition, the through hole of the third unit core C3 of the layer (i + 1) is aligned with the through hole of the first unit core C1. Here, the third unit core C3 means a unit core adjacent to the second unit core C2. Since the second unit core C2 and the third unit core C3 form the same layer, the second unit core C2 and the third unit core C3 are adjacent to each other along the circumferential direction.

Therefore, as illustrated, the first unit core C1 of the layer i may be disposed to span the second unit core C2 and the third unit core C3 of the layer (i + 1). That is, the lower surface of one side of the first unit core C1 is in contact with a portion of the other upper surface of the second unit core C2, and the lower surface of the other side of the first unit core C1 is the third unit core. In contact with the upper surface of one side of (C3). The one side and the other side means opposite directions to each other. At this time, the teeth 113 of the first unit core C1 are aligned with (or overlap) with the teeth 123 of the second unit core C2, and the through-holes of the first unit core C1 are disposed. 117 is aligned (overlaid) with a through hole (not shown) of the third unit core C3.

Meanwhile, the fourth unit core C4 of the (i + 2) th layer L3 is disposed to completely overlap the first unit core C1 of the ith layer L1. The fourth unit core C4 refers to a unit core positioned below (or above) the first unit core C1. That is, the plurality of unit cores 110 constituting layer i (L1) are disposed in the same manner as the arrangement of the plurality of unit cores 130 constituting layer (3) (i + 2). Therefore, the teeth and the through-holes of the first unit core C1 and the fourth unit core C4 are aligned (to overlap) in the height direction.

According to the arrangement of the first unit core C1 to the fourth unit core C4, the first unit core C1 may partially cover the second unit core C2 and the third unit core C3. Wrapped in and under.

According to the arrangement described above, the unit cores of the respective layers may be arranged in an annular shape to form the core portion 101 and the tooth portion 103 of the stator. In other words, the core unit 101 and the tooth unit 103 of the stator may be formed by arranging the unit cores of the respective layers in the circumferential direction.

Hereinafter, referring to the coupling of each layer, the N layers may be combined by inserting the rivet 300 into the through holes 115 and 125. Specifically, since the through holes of the first unit core C1, the third unit core C3, and the fourth unit core C4 are aligned, the rivet 300 is inserted into the through hole to insert the rivet 300 into the first unit core C1. ), It is possible to limit the horizontal and vertical movement of the third unit core (C3) and the fourth unit core (C4). The first unit core C1, the third unit core C3, and the fourth unit core C4 may rotate with the rivet 300 as an axis. However, the rotational degrees of freedom are in the circumferential direction of each unit core. It is limited by the unit core of each layer disposed adjacently.

In addition, the posts 215 (see FIG. 6) may be inserted into the coupling holes 115 and 125 formed in the teeth 113 and 123 to more firmly couple the plurality of layers. The post 215 may be provided in an insulator 200 to be described later.

2, 6, and 7, the insulator 200 is provided to surround the tooth part 103. Since the tees are generally conductive materials, the insulator 200 for insulation is provided between the teeth and the coil. A coil is wound along the outer circumferential surface of the tooth insulator 223 of the insulator 200.

The insulator 200 may include a first insulator 210 and a second insulator 220 coupled to the first insulator 210. The first insulator 210 may be coupled to face the second insulator 220 and may have the same shape. In this case, the first insulator 210 is configured to surround the upper part of the tooth part 103, and the second insulator 220 is coupled to the first insulator 210 to cover the lower part of the tooth part 103. It is configured to wrap.

Since the first insulator 210 and the second insulator 220 have the same shape, the first insulator 210 will be described below with reference to FIG. 6.

The first insulator 210 may include a tooth insulator 213 surrounding an outer circumferential surface of the tooth unit 103. In addition, the upper and lower ends of the tooth insulating part 213 may include a core insulating part 211 to insulate the core part from the coil. In addition, a post 215 inserted into the coupling hole 115 formed in the tooth 113 may be provided inside the tooth insulating part 213.

The tooth insulation part 213 may have a '-' shape to surround a part of the tooth part 103. In this case, the post 215 protrudes from the inner surface of the tooth insulating part 213. The post 215 is configured to correspond to the number of coupling holes formed in the tooth. According to an embodiment of the present invention, two posts 215 are provided and spaced apart from each other by a predetermined distance in the height direction of the tooth insulator 213.

In addition, the core insulating part 211 is provided at the upper and lower ends of the tooth insulating part 213, and preferably extends in the horizontal direction from the upper and lower ends of the tooth insulating part 213. In this case, the horizontal direction refers to a direction perpendicular to the height direction of the tooth insulator 213.

At least one of the tooth insulator 213, the core insulator 211, and the post 215 may be integrally formed. Preferably, the teeth insulator 213, the core insulator 211, and the post ( 215 is integrally formed. The first insulator 210 may be manufactured by plastic injection.

As described above, each unit core constituting the plurality of layers to be stacked may be coupled and fixed by the rivet 300 inserted into the through hole 117, but the post 215 of the insulator 200 may be fixed. By inserting into the coupling hole 115 formed in the tooth 113 can be more firmly coupled.

Reference numeral 221, which is not described, denotes a core insulator of the second insulator, 225 is a post of the second insulator, and 223 is a core insulator of the second insulator.

Hereinafter, a method of manufacturing the stator described above with reference to FIGS. 1 to 7 will be described.

First, the unit cores 110, 120, 130 constituting the stator layer are prepared. The unit cores 110, 120, 130 may be formed by punching an iron plate.

The plurality of unit cores 110 are disposed along the circumferential direction to form the first layer L1. That is, the plurality of unit cores 110 constituting the first layer L1 are disposed in an annular shape.

The second layer L2 is formed after the first layer L1 is disposed. The second layer L2 is provided on the upper portion (or lower portion) of the first layer L1.

In order to form the second layer L2, the plurality of unit cores 120 are disposed along the circumferential direction. At this time, the unit core 120 constituting the second layer L2 is disposed to be inverted from the unit core 110 constituting the first layer L1. That is, the second layer L2 is disposed so that the left and right are reversed by inverting the unit core 110 provided by the punching. Therefore, the unit core 120 constituting the second layer L2 may be disposed to be inverted from the unit core 110 constituting the first layer L1.

When the plurality of unit cores 120 constituting the second layer L2 are disposed, the second unit core C2 among the adjacent second unit cores C2 and the third unit cores C3 may be the first unit. The first unit core C1 of the layer L1 may be aligned with the teeth, and the third unit core C3 may be aligned with the through holes of the first unit core C1.

The arrangement of the second layer L2 may later constitute the third layer L3. The third layer L3 is provided adjacent to the second layer L2. The third layer L3 is provided at an upper portion (or lower portion) of the second layer L2.

In order to form the third layer L3, the plurality of unit cores 130 are disposed along the circumferential direction. In this case, the unit core 130 constituting the third layer L3 is disposed in the same form as the unit core 110 constituting the first layer L1. That is, the unit core 130 constituting the third layer L3 overlaps the lower portion of the unit core 110 constituting the first layer L1.

Thereafter, the above-described process may be repeated to add N layers.

After stacking all the plurality of layers, the plurality of layers are combined by coupling the rivet 300 to the through hole.

In addition, the insulator 200 is coupled to the tooth part 103 of the stator. The insulator 200 may include a first insulator 210 and a second insulator 220. The insulator 200 couples the first insulator 210 to an upper portion of the tooth part 103 and the second insulator ( 220 may be coupled to the lower portion of the tooth portion 103.

At this time, the posts 215 provided in the first insulator 210 and the second insulator 220 may be inserted into the coupling holes formed in the teeth to more firmly bond the stacked layers.

On the other hand, the stator of the motor described above can be applied to home appliances including washing machines and dryers and other home appliances including motors.

In particular, when the motor is applied to a washing machine and a dryer, the motor may drive the drum of the washing machine and the dryer.

Meanwhile, in the above-described embodiment, the member coupled to the through hole has been described as the rivet 300. However, the other coupling member may be changed and may be replaced by a bolt or a screw.

When the coupling member is a bolt or a screw, it is preferable that a thread is formed in the through hole.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

100 stator 101 core part
103 ts part 200 insulator
300 rivets
110, 120, 130 unit core
111, 121 Core Base 113, 123 Teeth
117, 127 through hole 115, 125 mating hole
210 First Insulator 220 Second Insulator
L1, L2, L3 First Layer, Second Layer, Third Layer
C1, C2, C3 First core, second core, third core

Claims (13)

In a stator composed of a plurality of layers,
The layer is ,
A first layer composed of a plurality of unit cores; And
And a second layer adjacent to the first layer and composed of a plurality of unit cores.
The unit core has a left and right asymmetric shape,
The unit core constituting the first layer and the unit core constituting the second layer are arranged inverted left and right,
The unit core,
Arc-shaped core base; And
Includes a tooth extending from the center of the core base in the eccentric position, the coupling hole is formed;
The stator is,
And an insulator surrounding the teeth and having a post inserted into the coupling hole, wherein the post is inserted into the coupling hole to fix the layer. delete The method of claim 1,
The core base of the unit core is a stator, characterized in that the through-hole is formed in a position eccentric to one side. The method of claim 3,
The through hole is a stator, characterized in that formed in a position eccentric to the second side in the opposite direction to the first side. The method according to any one of claims 3 to 4,
The first layer includes a first unit core,
The second layer includes a second unit core and a third unit core adjacent to the second unit core.
The first unit core is a stator, characterized in that disposed over the second unit core and the third unit core. The method of claim 5,
The tees of the first unit core are aligned with the teeth of the second unit core. The method of claim 5,
The through hole of the first unit core is aligned with the through hole of the third unit core. The method of claim 1,
A third layer adjacent to the second layer and composed of a plurality of unit cores,
The plurality of unit cores constituting the third layer is the same as the arrangement of the unit core of the first layer. delete In the manufacturing method of the stator composed of a plurality of layers,
Comprising a plurality of unit cores of the left and right asymmetry;
Arranging the plurality of unit cores along a circumferential direction to form a first layer; And
And arranging the plurality of unit cores along the circumferential direction on an upper portion of the first layer to form a second layer.
The unit core constituting the second layer is inverted left and right with the unit core constituting the first layer,
The unit core may be an arc-shaped core base; And
A tooth extending in a position eccentrically from the center of the core base to the first side and having a coupling hole formed therein;
The stator is,
A method for manufacturing a stator of a motor including an insulator surrounding the tooth and having a post inserted into the coupling hole. delete The method of claim 10,
The unit core has a through hole formed in a position eccentric to the second side in the opposite direction to the first side,
The first unit core of the first layer is disposed over the second unit core and the second unit core of the second layer,
The teeth of the first unit core and the second unit core are arranged to be aligned,
And stating the through-holes of the first unit core and the third unit core to be aligned. The method of claim 12,
Coupling the first layer and the second layer by coupling the coupling member to the through hole.
KR1020130024852A 2013-03-08 2013-03-08 A stator and a motor having the same KR102011819B1 (en)

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Application Number Priority Date Filing Date Title
KR1020130024852A KR102011819B1 (en) 2013-03-08 2013-03-08 A stator and a motor having the same

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KR102011819B1 true KR102011819B1 (en) 2019-08-19

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010183700A (en) * 2009-02-04 2010-08-19 Aichi Elec Co Motor and assembling/fixing method of resin insulation and stator of motor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3461552B2 (en) * 1994-01-28 2003-10-27 多摩川精機株式会社 Method of manufacturing stator and split laminated core
JPH11289728A (en) * 1998-04-02 1999-10-19 Nissan Motor Co Ltd Stator for reluctance motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010183700A (en) * 2009-02-04 2010-08-19 Aichi Elec Co Motor and assembling/fixing method of resin insulation and stator of motor

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