KR102582437B1 - Stator and motor having the same - Google Patents

Abstract

Embodiments include a plurality of stator units; It includes an insulating member that insulates the stator unit and a first guide part that guides the arrangement of the insulating member, and the stator unit includes a stator core, a coil wound around the stator core, and an insulator disposed between the stator core and the coil. The insulator includes a main body on which the coil is wound, an inner guide protruding from the inside of the main body, an outer guide protruding from an outside of the main body, and a first protruding in the circumferential direction from an area of a side of the inner guide. The stator includes protrusions, and the first guide portion is a groove formed when the first protrusions disposed adjacent to each other contact each other, and a motor including the stator. Accordingly, the motor can prevent the insulating paper from flowing and leaving.

Description

Stator and motor including the same {STATOR AND MOTOR HAVING THE SAME}

Embodiments relate to a stator and a motor including the same.

A motor is a device that obtains rotational power by converting electrical energy into mechanical energy, and is widely used in vehicles, household electronic products, and industrial devices.

The motor may include a housing, a shaft, a stator disposed on the inner peripheral surface of the housing, and a rotor installed on the outer peripheral surface of the shaft. Here, the stator of the motor causes electrical interaction with the rotor to induce rotation of the rotor.

Here, the stator may include a stator core, a coil wound around the stator core, and an insulator disposed between the stator core and the coil. In addition, the stator may further include insulating paper disposed between coils.

At this time, because the insulating paper is placed while the stator is assembled to the housing, it is difficult to assemble the insulating paper in a uniform position.

Additionally, when a space is formed between coils, there is a problem of the insulating paper moving or coming off. Accordingly, there is a problem that the insulation performance is deteriorated by the insulating paper.

Furthermore, when the insulating paper is separated, there is a problem that the insulating paper interferes with the rotation of the rotor. Accordingly, the separated insulating paper increases the possibility of defectiveness of the motor.

The embodiment provides a stator and a motor that prevent the flow and separation of insulating paper.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned here will be clearly understood by those skilled in the art from the description below.

Depending on the embodiment, the above task includes a plurality of stator units; It includes an insulating member that insulates the stator unit and a first guide part that guides the arrangement of the insulating member, and the stator unit includes a stator core, an insulator disposed on the stator core, and a coil wound around the insulator, The insulator includes a main body on which the coil is wound, an inner guide protruding from the inside of the main body, an outer guide protruding from an outside of the main body, and a first protrusion protruding in the circumferential direction from an area of a side surface of the inner guide, The first guide portion is achieved by a stator, which is a groove formed as the first protrusions disposed adjacent to each other come into contact with each other.

Additionally, the insulator includes a second protrusion protruding outward from a lower portion of the first protrusion, and an upper surface of the second protrusion may be in contact with a lower surface of the insulating member.

Additionally, the insulator includes an upper insulator and a lower insulator, and the second protrusion may be formed below the first protrusion of the lower insulator.

Meanwhile, the stator further includes a second guide part that guides the arrangement of the insulating member, and the second guide part may be provided as a slit formed as the side surfaces of the outer guides arranged adjacent to each other are spaced apart from each other.

Here, the insulator includes a third protrusion protruding in the circumferential direction from a lower region of the side surface of the outer guide,

The upper surface of the third protrusion may contact the lower surface of the insulating member.

Also, the insulating member is formed in a plate shape, and the insulating member can be guided by the first guide part and the second guide part.

Additionally, the stator core includes a yoke and a tooth protruding in a radial direction from the yoke, and the outer surface of the insulating member may be in contact with the inner peripheral surface of the yoke.

Meanwhile, the insulating member includes a plate portion and side wall portions extending from both ends of the plate portion, and the side wall portions may be guided by the first guide portion and the second guide portion.

Here, the height H1 of the inner surface of the side wall may be smaller than the height H2 of the outer surface.

And, the inner width (W1) of the plate portion may be smaller than the outer width (W2).

Additionally, the stator core includes a yoke and a tooth protruding radially from the yoke, and the outer surface of the side wall portion may be in contact with the inner peripheral surface of the yoke.

Meanwhile, the insulating member may be insulating paper.

According to the embodiment, the above task includes: a housing; A stator disposed within the housing; a rotor disposed within the stator; A shaft coupled to the rotor; and a cover disposed on the housing, wherein the stator includes a plurality of stator units, an insulating member that insulates the stator unit, and a first guide portion that guides the arrangement of the insulating member, and the stator unit includes a stator core. , an insulator disposed on the stator core and a coil wound on the insulator, wherein the insulator includes a main body on which the coil is wound, an inner guide protruding from the inside of the main body, an outer guide protruding from the outside of the main body, and the stator. It includes a first protrusion that protrudes in the circumferential direction from an area of the side surface of the inner guide, and the first guide portion is achieved by a motor, which is a groove formed as the first protrusions disposed adjacent to each other come into contact with each other.

In addition, the stator further includes a second guide part that guides the arrangement of the insulating member, and the second guide part may be provided as a slit formed as the side surfaces of the outer guides arranged adjacent to each other are spaced apart from each other. .

The stator according to the embodiment and the motor including the same can prevent the flow and separation of the insulating paper by using the first guide part and the second guide part.

1 is a diagram showing a motor according to an embodiment,
Figure 2 is a diagram showing an embodiment of a stator disposed in a motor according to an embodiment;
3 is a diagram showing a plurality of stator units disposed on a stator of a motor according to an embodiment;
4 and 5 are diagrams showing a stator unit of a stator disposed in a motor according to an embodiment;
Figure 6 is a perspective view showing the stator core and insulator of the stator unit disposed on the stator of the motor according to the embodiment;
Figure 7 is an exploded perspective view showing the stator core and insulator of the stator unit disposed on the stator of the motor according to the embodiment;
Figure 8 is a perspective view showing the upper insulator of the motor according to the embodiment;
9 is a plan view showing an upper insulator of a motor according to an embodiment;
Figure 10 is a perspective view showing the lower insulator of the motor according to the embodiment;
11 is a plan view showing a lower insulator of a motor according to an embodiment;
12 is a front view showing the upper insulator of the motor according to the embodiment;
Figure 13 is a side view showing an embodiment of an insulating member;
14 is a diagram showing another embodiment of a stator disposed in a motor according to an embodiment;
Figure 15 is a side view showing another embodiment of an insulating member.

Since the present invention can be subject to various changes and can have various embodiments, specific embodiments will be illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms containing ordinal numbers, such as second, first, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, the second component may be referred to as the first component without departing from the scope of the present invention, and similarly, the first component may also be referred to as the second component. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

In the description of the embodiment, in the case where one component is described as being formed “on or under” another component, (on or under) includes both components that are in direct contact with each other or one or more other components that are formed (indirectly) between the two components. Additionally, when expressed as 'on or under', it can include not only the upward direction but also the downward direction based on one component.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Hereinafter, embodiments will be described in detail with reference to the attached drawings, but identical or corresponding components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

1 is a diagram showing a motor according to an embodiment.

Referring to FIG. 1, the motor 1 according to the embodiment includes a housing 100 with an opening formed on one side, a cover 200 disposed on the upper part of the housing 100, and a stator disposed inside the housing 100. 300), a rotor 400 disposed inside the stator 300, a shaft 500 rotating with the rotor 400, a bus bar 600 and the shaft 500 disposed on the upper side of the stator 300. It may include a sensor unit 700 that detects rotation. Here, the inside refers to a direction arranged toward the center C based on the center C, and the outside refers to a direction opposite to the inside.

As such, the motor 1 may be a motor used in EPS. EPS (Electronic Power Steering System) assists the steering force with the driving force of the motor, ensuring turning stability and providing rapid restoring force to enable the driver to drive safely.

The housing 100 and cover 200 may form the external shape of the motor 1. Additionally, a receiving space may be formed by combining the housing 100 and the cover 200. Accordingly, as shown in FIG. 1, a stator 300, a rotor 400, a shaft 500, etc. may be disposed in the receiving space. At this time, the shaft 500 is rotatably disposed in the receiving space. Accordingly, the motor 1 may further include bearings 10 disposed at the upper and lower portions of the shaft 500, respectively.

The housing 100 may be formed in a cylindrical shape. Additionally, the housing 100 can accommodate a stator 300, a rotor 400, etc. therein. At this time, the shape or material of the housing 100 may be modified in various ways. For example, the housing 100 may be made of a metal material that can withstand high temperatures.

The cover 200 may be placed on the opening surface of the housing 100, that is, on the upper part of the housing 100, to cover the opening of the housing 100.

The stator 300 may be placed inside the housing 100. At this time, the stator 300 may be supported on the inner peripheral surface of the housing 100. And, the stator 300 is disposed outside the rotor 400. That is, the rotor 400 may be rotatably disposed inside the stator 300.

FIG. 2 is a diagram illustrating an example of a stator disposed in a motor according to an embodiment, FIG. 3 is a diagram illustrating a plurality of stator units disposed in a stator of a motor according to an embodiment, and FIGS. 4 and 5 are an embodiment of the stator. This is a diagram showing a stator unit of a stator disposed in a motor according to an example. Here, FIG. 2 is a diagram showing a stator according to the first embodiment, and compared to the stator according to the second embodiment, there is a difference in the shape of the insulating member.

2 to 5, the stator 300 has a plurality of stator units 300a arranged along the circumferential direction and an insulating member 340 that insulates the stator unit 300a and an arrangement of the insulating members 340. It may include a first guide unit 360 for guidance. In addition, the stator 300 may further include a second guide portion 370 that guides the placement of the insulating member 340. Here, the insulating member 340 is disposed between the stator units 300a to insulate the coil 320 of the stator unit 300a.

For example, the stator 300 can be implemented by arranging a plurality of stator units 300a along the circumferential direction and disposing an insulating member 340 between the coils 320 of the stator units 300a. At this time, the insulating member 340 may be guided by the first guide part 360 and the second guide part 370 formed by disposing the stator unit 300a along the circumferential direction.

Figure 6 is a perspective view showing a stator core and an insulator of a stator unit disposed on a stator of a motor according to an embodiment, and Figure 7 is an exploded perspective view showing a stator core and an insulator of a stator unit disposed on a stator of a motor according to an embodiment. .

4 to 7, the stator unit 300a includes a stator core 310, a coil 320 wound around the stator core 310, and an insulator disposed between the stator core 310 and the coil 320. It may include (330).

A coil 320 forming a rotating magnetic field may be wound around the stator core 310.

The stator core 310 may be formed by stacking a plurality of thin steel plates, but is not limited thereto. For example, the stator core 310 may be formed as a single piece.

Referring to FIG. 7 , the stator core 310 may include an arc-shaped yoke 311 and a tooth 312 . Additionally, the teeth 312 may be formed to protrude in the radial direction from the inner peripheral surface 311a of the yoke 311 for winding the coil 320. Here, as an example, the yoke 311 and the tooth 312 are formed integrally, but this is not necessarily limited.

Meanwhile, the teeth 312 may be arranged to face the magnet of the rotor 400. And, a coil 320 is wound around each tooth 312.

The insulator 330 insulates the stator core 310 and the coil 320. Accordingly, the insulator 330 may be disposed between the stator core 310 and the coil 320.

At this time, the coil 320 may be wound around the stator core 310 on which the insulator 330 is disposed. Also, the coil 320 can form a rotating magnetic field by supplying power.

As shown in FIGS. 4 and 5 , the insulator 330 may be disposed on the tooth 312 of the stator core 310 to insulate the stator core 310 and the coil 320. Here, the insulator 330 may be formed of a resin material.

The insulator 330 includes a main body 331 on which the coil 320 is wound, an inner guide 332 extending protruding from the inside of the main body 331 in the longitudinal direction of the shaft 500, and a side surface of the inner guide 332. It may include a first protrusion 333 protruding in the circumferential direction in one area and an outer guide 335 protruding from the outside of the main body 331. Here, the main body 331, the inner guide 332, the first protrusion 333, and the outer guide 335 may be formed as one body.

A coil 320 may be wound around the main body 331.

The body 331 may be disposed on the tooth 312 of the stator core 310 to insulate the stator core 310 and the coil 320.

The main body 331 may be formed in a 'ㄷ' shape, and a groove 331a may be formed on the outer surface of the main body 331. Here, the groove 331a may have a concave groove shape. Also, when winding the coil 320, the groove 331a can guide the arrangement of the coil 320.

The inner guide 332 supports the coil 320 wound around the main body 331 and prevents the coil 320 from being separated inward.

The inner guide 332 may be disposed inside the main body 331. Additionally, the inner guide 332 may be formed to protrude from the inside of the main body 331 in the axial and circumferential directions. Here, the axial direction may be the longitudinal direction of the shaft 500.

The first protrusion 333 may protrude from one area of the side surface 332a of the inner guide 332 to extend in the circumferential direction.

At this time, as the side surfaces 333a of the first protrusions 333 disposed adjacent to each other contact each other, the first guide portion 360 may be formed. For example, the first guide unit 360 may be disposed between the inner guide 332 of one stator unit 300a and the inner guide 332 of another stator unit 300a that is adjacent to it.

As shown in FIG. 2, the first guide portion 360 may be provided as a concave groove 360. Here, the first guide portion 360 is provided as a groove as an example, but is not necessarily limited thereto.

Accordingly, the groove 360 guides the placement of the insulating member 340. Accordingly, the inner end 340a of the insulating member 340 is disposed in the groove 360.

Meanwhile, the insulator 330 may include a second protrusion 334 protruding outwardly from a lower portion of the first protrusion 333 formed on the inner guide 332.

The second protrusion 334 may function as a locking step. For example, when the insulating member 340 is guided by the groove 360, the insulating member 340 moves only to a preset position due to the upper surface 334a of the second protrusion 334. Accordingly, the upper surface 334a of the second protrusion 334 may contact the lower surface of the insulating member 340.

The outer guide 335 supports the coil 320 wound around the main body 331 and prevents the coil 320 from being separated to the outside.

The outer guide 335 may be disposed outside the main body 331. Additionally, the outer guide 335 may be formed to protrude from the outside of the main body 331 in the axial and circumferential directions.

As shown in FIG. 2, as the side surfaces 335a of the outer guides 335 arranged adjacent to each other are spaced apart from each other, the second guide portion 370 may be formed. For example, the second guide unit 370 may be disposed between the outer guide 335 of one stator unit 300a and the outer guide 335 of another stator unit 300a located adjacent to it.

As shown in FIG. 2, the second guide portion 370 may be provided as a slit 370, which is a space. Here, the second guide portion 370 is provided as a slit as an example, but is not necessarily limited thereto.

Accordingly, the slit 370 guides the placement of the insulating member 340. Accordingly, the outer end 340b of the insulating member 340 is disposed in the slit 370.

Meanwhile, the insulator 330 may include a third protrusion 336 protruding from the lower side of the side surface 335a of the outer guide 335 to extend in the circumferential direction.

The third protrusion 336 may function as a locking step. For example, when the insulating member 340 is guided by the slit 370, the insulating member 340 moves only to a preset position due to the upper surface 336a of the third protrusion 336. Accordingly, the upper surface 336a of the third protrusion 336 may contact the lower surface of the insulating member 340.

As shown in FIGS. 6 and 7, the insulator 330 includes an upper insulator 330a disposed on the upper and side surfaces of the teeth 312 and a lower insulator 330b disposed on the lower and side surfaces of the teeth 312. can be distinguished.

FIG. 8 is a perspective view showing an upper insulator of a motor according to an embodiment, and FIG. 9 is a plan view showing an upper insulator of a motor according to an embodiment.

Referring to FIGS. 7 to 9 , the upper insulator 330a may include a main body 331, an inner guide 332, a first protrusion 333, and an outer guide 335. At this time, the main body 331 of the upper insulator 330a is disposed on the top and side of the tooth 312.

FIG. 10 is a perspective view showing a lower insulator of a motor according to an embodiment, FIG. 11 is a plan view showing a lower insulator of a motor according to an embodiment, and FIG. 12 is a front view showing an upper insulator of a motor according to an embodiment.

7 and 10 to 12, the lower insulator 330b includes a main body 331, an inner guide 332, a first protrusion 333, a second protrusion 334, an outer guide 335, and a second protrusion. It may include 3 protrusions 336. At this time, the main body 331 of the lower insulator 330b is disposed below and on the side of the tooth 312.

The second protrusion 334 of the lower insulator 330b may be formed to extend outward from the lower part of the first protrusion 333.

The third protrusion 336 of the lower insulator 330b may be formed to extend in the circumferential direction from the lower side of the side 335a of the outer guide 335.

That is, the lower insulator 330b is different from the upper insulator 330a in that it includes the second protrusion 334 and the third protrusion 336.

Figure 13 is a side view showing an embodiment of an insulating member.

Referring to FIGS. 2 and 13 , the insulating member 340 is disposed between the stator units 300a to insulate the coil 320. Here, the insulating member 340 may be called the first insulating member 340.

The insulating member 340 may be formed in a rectangular parallelepiped shape, as shown in FIG. 2 . Here, the insulating member 340 may be insulating paper.

Each of the inner end 340a and the outer end 340b of the insulating member 340 is guided by the first guide part 360 and the second guide part 370 and disposed between the stator unit 300a. At this time, the lower surface 341 of the insulating member 340 is in contact with the upper surface 334a of the second protrusion 334 and the upper surface 336a of the third protrusion 336 to position the insulating member 340 at a preset position. Let's do it.

And, the outer end surface 342 of the insulating member 340 may contact the inner peripheral surface 311a of the yoke 311 of the stator core 310.

Accordingly, the insulating member 340 is prevented from moving and leaving by the second protrusion 334, third protrusion 336, first guide part 360, and second guide part 370.

FIG. 14 is a diagram showing another embodiment of a stator disposed in a motor according to an embodiment, and FIG. 15 is a side view showing another embodiment of an insulating member. Here, FIG. 14 is a diagram showing a stator according to the second embodiment.

Referring to FIG. 14, the stator 300 includes a plurality of stator units 300a arranged along the circumferential direction, an insulating member 350 covering the coil 320 of the stator unit 300a, and an insulating member. It may include a first guide part 360 that guides the arrangement of 350 . In addition, the stator 300 may further include a second guide portion 370 that guides the placement of the insulating member 350. Here, insulating paper may be provided as the insulating member 350. Accordingly, the insulating paper is flexible and light in weight, so it does not significantly affect the performance of the motor.

In order to distinguish it from the insulating member 340 of the stator 300 according to the first embodiment, the insulating member 350 of the stator 300 according to the second embodiment may be called a second insulating member 350.

Referring to FIGS. 14 and 15 , the insulating member 350 may include a plate portion 351 and a side wall portion 352 extending from both ends of the plate portion 351 to one side and protruding. At this time, the plate portion 351 may be placed on top of the coil 320. And, the side wall portion 352 may be disposed between the coils 320.

The side wall portion 352 is guided by the first guide portion 360 and the second guide portion 370 and disposed between the stator unit 300a.

The lower surface 352a of the side wall portion 352 is in contact with the upper surface 334a of the second protrusion 334 and the upper surface 336a of the third protrusion 336 to position the insulating member 340 at a preset position. .

At this time, the outer surface 352b of the side wall portion 352 may be in contact with the inner peripheral surface 311a of the yoke 311 of the stator core 310.

Accordingly, the insulating member 350 is prevented from moving and leaving by the second protrusion 334, third protrusion 336, first guide part 360, and second guide part 370.

Meanwhile, the height H1 of the inner surface 352c of the side wall portion 352 may be smaller than the height H2 of the outer surface 352b. Accordingly, the plate portion 351 may be disposed to be inclined at a predetermined angle θ based on the lower surface 352a of the side wall portion 352.

That is, because the coil 320 can have a space factor that increases as it goes outward, the plate portion 351 can be formed to have a predetermined angle θ.

Additionally, the inner width W1 of the plate portion 351 may be smaller than the outer width W2. For example, the plate portion 351 may be formed in a trapezoidal shape.

As shown in FIG. 14, the insulating member 350 is disposed continuously along the circumferential direction in the stator unit 300a as an example, but the present invention is not necessarily limited to this. For example, the insulating member 350 may be disposed in one stator unit 300a along the circumferential direction, then skip the adjacent stator unit 300a and be disposed in the next stator unit 300a.

The rotor 400 may be placed inside the stator 300. And, the shaft 500 may be coupled to the center.

The rotor 400 may be configured by combining a magnet (not shown) with a rotor core (not shown). For example, the rotor 400 may be configured with a magnet disposed on the outer peripheral surface of the rotor core.

Accordingly, the magnet forms a rotating magnetic field with the coil 320 wound around the stator 300. These magnets may be arranged so that the N and S poles are alternately positioned along the circumferential direction around the shaft 500.

Accordingly, the rotor 400 rotates due to the electrical interaction between the coil 320 and the magnet, and when the rotor 400 rotates, the shaft 500 rotates to generate driving force for the motor 1.

Meanwhile, the rotor core of the rotor 400 may be manufactured by combining a plurality of split cores or may be manufactured in the form of a single core composed of one barrel. Here, the rotor core may be implemented in a shape in which a plurality of plates in the form of circular thin steel plates are stacked.

As shown in FIG. 1, the shaft 500 may be rotatably supported inside the housing 100 by a bearing 10. Additionally, the shaft 500 may rotate in conjunction with the rotation of the rotor 400.

The bus bar 600 may be placed on top of the stator 300.

Additionally, the bus bar 600 may be electrically connected to the coil 320 of the stator 300.

The bus bar 600 may include a bus bar body and a plurality of terminals disposed inside the bus bar body. Here, the bus bar body may be a mold formed through injection molding. Additionally, each of the terminals may be electrically connected to the coil 320 of the stator 300.

The sensor unit 700 detects the magnetic force of a sensing magnet installed to be rotationally interlocked with the rotor 400 and determines the current position of the rotor 400, thereby detecting the rotation of the shaft 500.

The sensor unit 700 may include a sensing magnet assembly 710 and a printed circuit board (PCB) 720.

The sensing magnet assembly 710 is coupled to the shaft 500 to interoperate with the rotor 400 to detect the position of the rotor 400. At this time, the sensing magnet assembly 710 may include a sensing magnet and a sensing plate. The sensing magnet and the sensing plate may be coupled to have the same axis.

The sensing magnet may include a main magnet disposed in the circumferential direction adjacent to the hole forming the inner peripheral surface and a sub-magnet formed at the edge. The main magnet may be arranged in the same manner as the drive magnet inserted into the rotor 400 of the motor. The sub-magnet is more subdivided than the main magnet and consists of many poles. Accordingly, it is possible to measure the rotation angle by dividing it more finely and drive the motor more smoothly.

The sensing plate may be formed of a disk-shaped metal material. A sensing magnet may be coupled to the upper surface of the sensing plate. And the sensing plate may be coupled to the shaft 500. Here, a hole through which the shaft 500 passes is formed in the sensing plate.

A sensor that detects the magnetic force of the sensing magnet may be placed on the printed circuit board 720. At this time, the sensor may be provided as a Hall IC. Additionally, the sensor can generate a sensing signal by detecting changes in the N and S poles of the sensing magnet.

Although the present invention has been described above with reference to embodiments, those skilled in the art can make various modifications and modifications to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can change it. And, the differences related to these modifications and changes should be construed as being included in the scope of the present invention as defined in the appended claims.

1: motor
100: housing
200: Cover
300: stator 310: stator core
320: coil
330: insulator 331: main body
332: inner guide 333: first protrusion
334: second protrusion 335: outer guide
336: Third projection
340, 350: Insulating member
400: rotor
500: shaft
600: Bus bar
700: Sensor unit

Claims (12)

a plurality of stator units;
an insulating member that insulates the stator unit; and
It includes a first guide part that guides the placement of the insulating member,
The stator unit is
stator core,
A coil wound around the stator core, and
It includes an insulator disposed between the stator core and the coil,
The insulator is
A body on which the coil is wound,
an inner guide protruding from the inside of the main body,
An outer guide protruding from the outside of the main body,
A first protrusion protruding in the circumferential direction from one area of the side surface of the inner guide, and
It includes a second protrusion protruding outward from a lower portion of the first protrusion,
The first guide portion is a groove formed as the first protrusions disposed adjacent to each other come into contact with each other,
A stator in which the upper surface of the second protrusion is in contact with the lower surface of the insulating member. delete According to paragraph 1,
The insulator includes an upper insulator and a lower insulator,
The second protrusion is a stator formed below the first protrusion of the lower insulator. According to claim 1 or 3,
It further includes a second guide part that guides the placement of the insulating member,
The second guide portion is a stator provided with slits formed as sides of the outer guides disposed adjacent to each other are spaced apart from each other. a plurality of stator units;
an insulating member that insulates the stator unit; and
It includes a first guide part that guides the placement of the insulating member,
The stator unit is
stator core,
A coil wound around the stator core, and
It includes an insulator disposed between the stator core and the coil,
The insulator is
A body on which the coil is wound,
an inner guide protruding from the inside of the main body,
an outer guide protruding from the outside of the main body, and
It includes a third protrusion protruding in the circumferential direction from a lower area of the side surface of the outer guide,
A stator in which the upper surface of the third protrusion is in contact with the lower surface of the insulating member. According to clause 5,
It further includes a second guide part that guides the placement of the insulating member,
The insulating member is formed in a plate shape,
The insulating member is a stator guided by the first guide part and the second guide part. According to clause 6,
The stator core includes a yoke and a tooth protruding radially from the yoke,
The stator where the outer surface of the insulating member is in contact with the inner peripheral surface of the yoke. According to clause 6,
The insulating member is
It includes a plate portion and side wall portions extending from both ends of the plate portion,
A stator wherein the side wall portion is guided by the first guide portion and the second guide portion. According to clause 8,
A stator wherein the inner height (H1) of the side wall portion is smaller than the height (H2) of the outer surface of the side wall portion. According to clause 9,
A stator wherein the inner width (W1) of the plate portion is smaller than the outer width (W2) of the plate portion. According to clause 9,
The stator core includes a yoke and a tooth protruding radially from the yoke,
The stator wherein the outer surface of the side wall portion is in contact with the inner peripheral surface of the yoke. housing;
A stator disposed within the housing;
a rotor disposed within the stator;
A shaft coupled to the rotor; and
Includes a cover disposed on the housing,
The stator is
a plurality of stator units,
an insulating member that insulates the stator unit, and
It includes a first guide part that guides the placement of the insulating member,
The stator unit is
stator core,
A coil wound around the stator core, and
It includes an insulator disposed between the stator core and the coil,
The insulator is
A body on which the coil is wound,
an inner guide protruding from the inside of the main body,
An outer guide protruding from the outside of the main body,
A first protrusion protruding in the circumferential direction from one area of the side surface of the inner guide, and
It includes a second protrusion protruding outward from a lower portion of the first protrusion,
The first guide portion is a groove formed as the first protrusions disposed adjacent to each other come into contact with each other,
A motor in which the upper surface of the second protrusion is in contact with the lower surface of the insulating member.

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