KR20190052200A - Reducer integrated motor - Google Patents

Abstract

The present invention relates to a speed reducer integrated type motor and, more specifically, to a speed reducer integrated type motor, in which a motor having a hollow space and a speed reducer positioned in the hollow space of the motor are formed to maximize space usage efficiency. The present invention provides the speed reducer integrated type motor, comprising: a rotor unit which forms a circular disk shape with a hollow space and in which a plurality of magnets are seated radially along a circumferential surface; a stator unit which forms a circular disk shape with a hollow space, which is arranged to be spaced at an upper part and a lower part of the rotor unit and which forms an electromagnet having a core radially protruding toward the rotor unit around which coil is wound; a speed reducer unit seated in the hollow space of the rotor unit and reducing rotational speed of the rotor unit; and a frame unit seated on exposed surfaces of an upper part and a lower part of the stator unit to protect the inside.

Description

Reducer integrated motor [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reduction gear integrated type motor, and more particularly, to a motor in which a hollow is formed and a motor in which a reduction gear is formed in the hollow of the motor to maximize space utilization efficiency.

Since a general motor has a high rotation speed of a rotor and a low torque, a speed reducer is further combined or formed integrally with a motor for use in a mechanical device such as a robot arm.

The axial motor has a configuration in which the air gap between the stator and the rotor is orthogonal to the axial direction so that the axial volume can be minimized and the torque for initial starting is high, It is highly utilized.

However, in the conventional axial motor, it is difficult to maintain a constant gap, a tolerance generated in the assembling process tends to occur due to a multi-step structure, and it is difficult to be integrally formed with the reducer due to the structure, There was a difficult side to be.

Therefore, it is necessary to develop an axial motor which is formed integrally with the speed reducer and can maximize the space utilization by minimizing the volume.

In this regard, a motor-integrated type speed reducer is disclosed in Korean Patent No. 10-1090998, but it has a problem that the above-mentioned problem can not be solved.

Korean Patent No. 10-1090998 (December 1, 2011)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an axial motor in which a speed reducer is effectively combined.

Another object of the present invention is to provide a structure capable of minimizing the volume when the reducer and the motor are combined.

It is another object of the present invention to provide a reducer-integrated type motor in which hollows are formed, wirings can be formed through the hollows, and a plurality of motors can be coupled in series, have.

Another object of the present invention is to provide a motor capable of minimizing eddy current loss by improving the material of a motor with a reduction gear unit.

It is a further object of the present invention to provide a motor that can enhance the heat dissipation property of a coil of a reduction gear integrated type motor by ceramic coating and increase the insulation between the core and the frame.

It is another object of the present invention to provide a motor capable of minimizing a cumulative tolerance occurring during assembly by improving the structure so that a frame of a bearing used in a reducer-integrated motor is not required.

The problems to be solved by the present invention are not limited to the above-mentioned problems and may include other types of motors other than the axial type and the technology of the reduction gear of the present invention. Other objects and advantages of the present invention will become apparent to those skilled in the art from the following description.

A reduction gear integrated type motor according to the present invention is characterized in that it is provided with a rotor portion in which a hollow is formed and a plurality of magnets are radially seated along an outer circumferential surface thereof, Wherein the stator includes a stator portion spaced apart from the stator portion and radially protruding toward the rotor portion, the stator portion having a coil wound therearound to form an electromagnet, a reduction gear portion that is seated in the hollow portion of the rotor portion to reduce a rotation speed of the rotor portion, And a frame portion that is seated on the upper and lower exposed surfaces and protects the inside.

INDUSTRIAL APPLICABILITY The decelerator-integrated motor according to the present invention has an effect that the axial motor and the speed reducer can be effectively combined to constitute a single unit.

In addition, in the motor with integral reducer according to the present invention, a roller bearing is used in a connecting portion of a motor and a speed reducer, so that high rigidity and high precision tolerance can be maintained.

In addition, the motor according to the present invention has the effect of minimizing the volume when the axial motor and the speed reducer are combined to form a single unit.

In addition, the motor according to the present invention has an effect of increasing space utilization and expandability by forming a hollow in the shaft.

Also, the motor according to the present invention has the effect of improving the material, minimizing eddy current loss, and maintaining high rigidity.

Further, the motor according to the present invention has the effect of increasing the insulation and heat dissipation through the ceramic coating of the coil.

In addition, the integrated reducer motor according to the present invention has the effect of minimizing the cumulative tolerance generated at the time of high-speed rotation of the motor.

In addition, the motor according to the present invention has the effect of increasing the heat dissipation and cooling efficiency generated in the core.

1 is a perspective view of a reduction gear integrated type motor according to the present invention.
2 is a sectional view of the reduction gear integrated type motor according to the present invention.
FIG. 3 is a side view of a stator part and a rotor part of a reduction gear integrated type motor according to the present invention.
4 is a perspective view showing a part of the motor according to the present invention.
Fig. 5 shows a part of a stator part and a core of a speed reducer-integrated motor according to the present invention.
6 shows a structure of a rotor part and an encoder of a speed reducer-integrated motor according to the present invention.
7 (a) is a side view of a rotary gear of a motor with a reduction gear according to the present invention.
FIG. 7 (b) is a side view of the combined state of the rotary gear and the both-end fixed gear of the reduction gear integrated type motor according to the present invention.
7C is a side view of the combined state of the rotary gear, the dual fixed gear, and the elastic gear of the reduction gear integrated type motor according to the present invention.
8 is a top view of the reduction gear unit of the motor according to the present invention.
Fig. 9 shows a disassembled state of the stator part and the frame part of the motor with integrated reducer according to the present invention.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 4, the reduction gear integrated type motor according to the present invention includes a rotor portion 1, a rotor portion 2, and a rotor portion 3, which are provided in the form of a disk having a hollow shape and on which a plurality of magnets 11 are radially mounted, A coil 212 is wound around a core 211 radially protruding toward the rotor portion 1 and spaced apart from the upper portion and the lower portion of the rotor portion 1, A decelerator base 3 which is seated in the hollow of the rotor portion 1 and decelerates the rotation speed of the rotor portion 1 and a deceleration base portion 3 and a stator portion 2 And a frame portion 4 that is seated on the upper and lower exposed surfaces of the frame portion 4 and protects the inside thereof.

First, the rotor portion 1 is provided in a disk shape in which a hollow is formed, and a plurality of magnets 11 are seated radially along the outer circumferential surface.

At this time, the hollow has an elliptical shape.

The rotor portion 1 is a portion to be a rotor of the motor according to the present invention, and is rotated around the center of the disk-like shape in which the hollow is formed.

The hollow portion formed in the central portion of the rotor portion 1 is provided with a reduction gear unit 3 that rotates with the same rotation axis to form a hollow motor.

By the configuration of the rotor in which the hollow is formed and the reduction unit 3 in which the hollow is formed, the motor according to the present invention can minimize the volume and can be configured to allow the wiring to pass through the hollow And can be applied to the complex structure such as a robot arm by efficiently utilizing the space. This will be more specifically described below.

The stator section 2 is formed in a disc shape having a hollow and is spaced apart from the upper and lower portions of the rotor section 1 and has a core 211 protruding toward the rotor section 1 Are formed radially.

A coil 212 is wound around the core 211 to form an electromagnet.

3, the stator portion 2 is provided at the upper and lower portions of the rotor portion 1 and is provided at the upper portion of the rotor portion 1, An upper stator portion 21 and a lower stator portion 22 provided below the rotor portion 1 are formed.

The upper stator part 21 and the lower stator part 22 are formed in the same shape so that the cores 211 are opposed to each other.

At this time, the core 211 is a portion where the coil 212 is wound to form an electromagnet, and is protruded toward the rotor portion 1 as shown in FIG.

Specifically, the upper stator section 21 is formed with a core 211 protruding downward, and the lower stator section 22 is formed with a core 211 protruding upward.

At this time, the coil 212 is formed to be wound around the core 211, and is formed in a thin plate shape having a length and is wound around the core 211.

Since the coil 212 is formed in a linear shape and wound to be in close contact with the core 211 in the form of a thin plate having a length longer than that of the conventional coil 212, the drop rate of the coil 212 is The pores can be minimized, the heat radiation effect can be enhanced, and the manufacturing process can be simplified to increase the process efficiency.

The coil 212 is composed of a metal plate (not shown) and a coating layer (not shown).

The metal plate (not shown) may be formed of a metal material of a conductive material, and the metal material may be any material having high conductivity.

It is advantageous to be made of a Cu material.

Next, the coating layer (not shown) is formed of a ceramic material and coated on at least one of the upper and lower portions of the metal plate (not shown). The ceramic material may be any ceramic insulating material.

The heat dissipation efficiency of the coil 212 can be increased by the coating layer (not shown) made of a ceramic-based insulator, and a part of the coil 212 is melted or the insulating layer is damaged The problem can be prevented.

As described above, the coil 212 is formed in the form of a thin plate made of the metal plate (not shown) and a coating layer (not shown) and is wound tightly on the core 211, The voids of the coil 212 can be minimized, the dot rate of the coil 212 is maximized, and the electric conductivity and the thermal conductivity can be increased.

As the thermal conductivity increases, the efficiency of heat dissipation of the core 211 and the coil 212 exposed to a high-temperature environment is increased, and the cooling efficiency can be increased during cooling.

3 and 6, an encoder 23 is further provided on one side of the outer circumferential surface of the rotor portion 1, that is, on the side between the upper stator portion 21 and the lower stator portion 22 .

A furrow or a hole through which the encoder 23 can be inserted is formed on one side of the stator unit 2 so that the encoder 23 is seated on the stator unit 2, And is directed to the rotor portion 1.

The encoder 23 has a configuration for measuring the number of revolutions of the rotor section 1. The outer circumferential surface of the rotor section 1 is marked with a slit parallel to the rotation axis, The encoder 23 is provided on one side to recognize the slit marked on the outer circumferential surface of the rotor part 1 and measure the rotation speed and the rotation amount of the rotor part 1. [

Since a general motor has a rotor with a small diameter in the form of a shaft, it is not easy to measure the rotation speed and the rotation amount by using the encoder 23, Since the diameter of the rotor part 1 according to the present invention is increased, the slit can be formed on the outer circumferential surface of the rotor part 1 to be large enough to be easily recognized by the encoder 23, The recognition rate becomes high and the possibility of error becomes small, so that the rotation speed and the rotation amount of the rotor section 1 can be easily measured.

In addition, since the hollow portion of the stator portion 2 having the same size as that of the rotor portion 1 is formed at the center portion, the following deceleration base portion 3 can be easily seated.

It is possible to minimize the size of the motor since the following deceleration base 3 can be seated and driven in the hollow of the rotor part 1 and the stator part 2 and when the motor is applied to a complicated part, It is possible to easily secure a space for occupying the space, and the space occupied can be minimized.

Next, the reduction base portion 3 is seated in the hollow portion of the rotor portion 1, thereby reducing the rotation speed of the rotor portion 1.

Specifically, the reduction gear unit 3 includes a rotary gear 31, a both-end fixed gear 32, and an elastic gear 33 as shown in FIG. 7 in the form of a harmonic reduction gear.

7 (a), the rotary gear 31 is provided in the shape of a pipe in which a rotating shaft parallel to the rotor portion 1 is formed, and the outer peripheral surface of the center portion So that the teeth are formed.

The rotary gear 31 is a portion that is finally decelerated and rotated in the configuration of the reduction gear portion 3, and is selectively engaged with the elastic gear 33 and rotates.

7 (b), the both-end fixed gear 32 is formed with the same circumferential surface as that of the rotary gear 31, and the upper and lower teeth of the rotary gear 31 Are provided adjacent to each other, formed with teeth along the outer circumferential surface, and are provided in such a manner that they are not rotated.

Specifically, the both-end fixed gear 32 is composed of an upper fixed gear 321 and a lower fixed gear 322.

The upper fixed gear 321 has a circumferential surface identical to that of the rotary gear 31 and is provided adjacent to an upper portion of the teeth of the rotary gear 31, And is provided adjacent to the lower portion of the teeth of the rotary gear 31. [

The upper fixed gear 321 and the lower fixed gear 322 are formed of the same number and number of teeth and have a slightly smaller number of teeth than the number of teeth of the rotary gear 31, And is selectively engaged with the elastic gear 33 similarly.

The both end fixing gears 32 are located at the upper and lower positions with respect to the rotary gear 31 so that the rotary gear 31 can stably rotate and rotate between the both end fixing gears 32. [ And the upper and lower ends of the inner surface of the following elastic gear 33 are simultaneously supported by the both-end fixing gear 32, so that the overall balance of the reduction gear unit 3 can be stably maintained.

7 (c), the elastic gear 33 is constituted by a resilient material so as to surround the outer peripheral surface of the rotary gear 31 and the both-end fixed gear 32, Teeth which mesh with the teeth of the gear 31 and the both-end fixed gear 32 are formed and a diameter larger than the diameter of the rotary gear 31 and the both-end fixed gear 32 by a predetermined length is formed.

Specifically, the elastic gear 33 is made of a resilient material, and therefore, as shown in Fig. 8, the gears, which are pressed by the following first bearing portion and are located at both ends a-a ' The teeth of the rotary gear 31 and the teeth of the both-end fixed gear 32 engage with each other.

A portion of both ends (b-b ') orthogonal to both ends (a-a') of the inner peripheral surface of the elastic gear 33, which are engaged with the teeth of the rotary gear 31 and the both- And an elliptical shape in which the teeth of the gear 31 and the teeth of the both-end fixed gear 32 are open.

As a result, the following first bearing portion rotates by the rotation of the rotor portion 1, and both ends a-a 'of the inner peripheral surface of the elastic gear 33 rotate in accordance with the rotation of the first bearing portion And is selectively engaged with the teeth of the rotary gear 31 and the both-end fixed gear 32. [

At this time, since the number of teeth of the rotary gear 31 is not equal to the number of teeth of the both-end fixed gear 32, the rotary gear 31 is engaged with the elastic gear 33 and the rotary gear 31 is greatly decelerated and rotated.

Next, the frame portion 4 is seated on the upper and lower exposed surfaces of the reduction base portion 3 and the stator portion 2 to protect the inside thereof.

Specifically, the frame portion 4 is composed of a stator frame portion 41 and a speed reducer frame portion 42. [

First, the stator frame portion 41 is coupled to the exposed surfaces of the upper stator portion 21 and the lower stator portion 22 in the form of a cover to protect the stator portion 2.

Next, the speed reducer frame portion 42 is coupled to the upper and lower exposed surfaces of the reduction gear portion 3 to protect the reduction gear portion 3 from the external environment.

2 and 9, a plurality of protruding layers 411 formed along the circumferential surface are formed on the surfaces to be coupled with each other when the stator frame part 41 and the stator part 2 are coupled to each other. Are continuously formed.

The protrusion layer 411 is provided to increase the surface area of the stator part 2 in order to increase the heat radiation efficiency and to effectively dissipate heat generated in the core 211.

2 and 9, a cooling water passage 412 is provided on the stator frame portion 41 and the coupling surface of the stator portion 2 so as to allow the fluid to flow along the circumferential surface thereof More.

The fluid can flow through the cooling water path 412 to maximize the cooling efficiency of the core 211.

An inlet port (not shown) is provided at one side of the stator frame section 41 to allow the fluid to flow into the cold water channel, and a discharge port (not shown) through which the fluid can be discharged is further provided. Further, a control valve (not shown) capable of controlling the amount of the fluid may be further provided.

The rotor portion 1, the stator portion 2, the reduction gear portion 3 and the frame portion 4 are preferably made of an insulating and heat-resistant composite material to which titanium and ceramics are bonded.

Preferably, the ceramic base material is composed of a titanium base and a ceramic material. In order to be constituted as described above, it is preferable to be manufactured by the powder injection molding method.

Any form of manufacture that can incorporate a ceramic material in the titanium base may be used.

Since the rotor portion 1, the stator portion 2, the reduction gear portion 3, and the frame portion 4 are manufactured from the composite material, the eddy current loss can be greatly reduced.

Next, a bearing portion for facilitating rotation is provided between the rotor portion 1, the stator portion 2, and the reduction gear portion 3.

Specifically, the first roller bearing portion 61, the second roller bearing portion 62, and the third roller bearing portion 63 are constituted.

2 and 4, the first roller bearing portion 61 is formed with a rotation axis parallel to the rotation axis of the rotor portion 1, and the rotor portion 1 and the reduction base portion 3 in the radial direction.

The first roller bearing portion 61 is rotated by the rotation of the rotor portion 1 and the both ends a-a 'of the elastic gear 33 are rotated by the first roller bearing portion 61, Lt; / RTI >

At this time, it is preferable that the hollow part of the rotor part 1 forms a fine ellipse and applies pressure to the first bearing part and rotates.

Accordingly, it is possible to apply pressure effectively to both ends a-a 'of the elastic gear 33.

In addition, the first roller bearing portion 61 preferably has a concave or convex shape with a predetermined thickness in the longitudinal direction.

This is to prevent the middle portion of the first roller bearing portion 61 from being separated from the upper portion and the lower portion by closely contacting the rotor portion 1 and the reduction base portion 3 with each other.

Since the first roller bearing portion 61 according to the present invention uses a roller bearing rather than a ball bearing applied to a general harmonic speed reducer, it is formed in a line contact type instead of a point contact, so that the rotational force can be more stably transmitted. Specifically, the first roller bearing portion 61 is formed of a roller bearing, and is provided between the rotor portion 1 and the reduction gear portion 3 so as to be in line contact with the first roller bearing portion 61. Accordingly, This is possible.

The second roller bearing portion 62 has a rotation axis inclined by 45 degrees with respect to the rotation axis of the rotor portion 1 so as to be rotatable between the stator portion 2 and the rotor portion 1, .

Specifically, as shown in FIG. 2 and FIG. 4, it is composed of an upper second roller bearing portion 621 and a lower second roller bearing portion 622.

The upper second roller bearing portion 621 has a rotation axis inclined by 45 degrees with respect to the rotation axis of the rotor portion 1 and is rotatably supported between the upper stator portion 21 and the rotor portion 1 in a radial manner A plurality is provided.

The lower second roller bearing portion 622 has a rotation axis inclined by 45 degrees with respect to the rotation axis of the rotor portion 1 so that the lower second roller bearing portion 622 is radially disposed between the lower stator portion 22 and the rotor portion 1 A plurality is provided.

The third roller bearing portion 63 has a rotation axis inclined by 45 degrees with respect to the rotation axis of the rotor portion 1 so that the speed reducer frame portion 42 and the reducer base portion 3 And a plurality of radially provided lower outer circumferential surfaces to facilitate the rotation of the reducer base 3.

Specifically, as shown in Figs. 2 and 4, the upper third roller bearing portion 631 and the lower third roller bearing portion 632 are constituted.

The upper third roller bearing portion 631 has a rotation axis inclined by 45 degrees with respect to the rotation axis of the rotor portion 1 so that the reduction gear frame portion 42 and the reduction gear portion 3, A plurality of radial elements are provided between the upper and lower outer peripheral surfaces of the reducer base 3 to facilitate the rotation of the reducer base 3.

The lower third roller bearing portion 632 has a rotation axis inclined by 45 degrees with respect to the rotation axis of the rotor portion 1 so that the reduction gear frame portion 42 and the reduction gear portion 3, A plurality of radial elements are provided between the upper and lower outer peripheral surfaces of the reducer base 3 to facilitate the rotation of the reducer base 3.

The stator section 2, the deceleration base section 3 and the frame section 4 are provided with a first bearing section, a second bearing section and a third bearing section, The occurrence of the cumulative tolerance can be prevented by the organic movement of the rotor portion 1, the stator portion 2, the reduction gear portion 3 and the frame portion 4 when the vibration is generated by driving the rotor Can be minimized.

The first bearing portion is formed in a line contact form between the rotor portion 1 and the reduction base portion 3 and the second bearing portion is formed in a line contact form between the rotor portion 1 and the rotor portion 1, And the stator section (2) constituted at the upper part and the lower part, and the third bearing part is constituted between the reduction base part (3) and the frame part (4) A total of five connecting points are provided between the rotor section 1, the stator section 2, the decelerator section 3 and the frame section 4 so as to organically distribute the impact generated from the inside and the outside of the motor, Do.

The first bearing portion, the second bearing portion, and the third bearing portion may be made of at least one of titanium, a ceramic material and other alloys in order to minimize the cumulative tolerance that may be caused by the elasticity of the material itself .

Hereinafter, the operation of the invention constructed as described above will be described.

First, in the reducer-integrated motor according to the present invention, the rotor portion 1 is rotated through power supply.

The first bearing portion formed along the hollow circumferential surface formed in the rotor portion 1 rotates through the rotation of the rotor portion 1.

At this time, the hollow portion of the rotor portion 1 is finely elliptical, and the first bearing portion is rotated in the form of being closely attached to the hollow portion of the rotor portion 1.

Through the rotation of the first bearing portion, the elastic gear (33) is pressurized.

Concretely, pressure is sequentially applied to both ends a-a 'along the circumferential surface of the elastic gear 33.

The teeth formed on the inner circumferential surface of the elastic gear 33 and the teeth of the both end fixed gears 32 are sequentially engaged with each other and the rotary gear 31 formed between the both end fixed gears 32 is also rotated And meshes with the teeth of the elastic gear (33).

At this time, since the number of teeth of the rotary gear 31 is slightly different from that of the both-end fixed gear 32, the rotation gear 31 is meshed with the teeth of the elastic gear 33 and gradually rotated.

At this time, the encoder 23 is provided on one side of the stator section 2, and recognizes a slit parallel to the rotation axis of the rotor section 1 marked on the rotor section 1, (1) is measured.

In addition, the heat generated in the core 211 can be quickly radiated to the outside by the stator part 2 formed in a large area. In particular, the heat generated in the core 211 can be radiated to the outside of the stator part 2, By the layer 411, the surface area is increased and the heat emission efficiency is increased.

In addition, a fluid can flow through the cooling water passage 412 formed between the stator frame portion 41 and the stator portion 2, so that the heat released from the core 211 and the cooling efficiency Can be maximized.

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

1:
11: Magnet
2: stator part
21: Upper stator part
211: Core
212: coil
22: Lower stator section
23: Encoder
3: Deceleration donation
31: rotary gear
32: Both ends fixed gear
321: upper fixed gear
322: lower fixed gear
33: elastic gear
4:
41: stator frame part
411:
412:
42: Reducer frame part
61: first roller bearing part
62: second roller bearing part
621: upper second roller bearing part
622: Lower second roller bearing part
63: third roller bearing part
631: upper third roller bearing part
632: Lower third roller bearing part

Claims (13)

A rotor portion provided in a disc shape in which a hollow is formed and in which a plurality of magnets are radially seated along an outer peripheral surface;
A stator part provided in a disk shape in which a hollow is formed and spaced apart from the upper and lower parts of the rotor part and having a coil protruding radially from the rotor part to form an electromagnet;
A deceleration base portion that is seated on the hollow or outer peripheral surface of the rotor portion and decelerates the rotation speed of the rotor portion;
And a frame portion that is seated on upper and lower exposed surfaces of the reduction base portion and the stator portion and protects the inside. The method according to claim 1,
The speed reducer unit,
A rotary gear which is provided in the shape of a pipe in which a rotating shaft parallel to the rotor portion is formed and in which teeth are formed along the outer peripheral surface of the center portion with respect to the rotating shaft;
A both-end fixed gear provided on the same circumferential surface as the rotary gear and adjacent to an upper portion and a lower portion of the teeth of the rotary gear, to which teeth are formed along an outer circumferential surface,
Wherein teeth are formed on the inner circumferential surface of the rotary gear and the stationary gear to engage with the teeth of the rotary gear and the stationary gear in the form of a resilient material so as to surround the outer circumferential surfaces of the rotary gear and the stationary gear, And an elastic gear having a large diameter formed thereon, wherein the helical gear is a harmonic reducer. The method according to claim 1,
Wherein the coil is provided in the form of a thin plate having a length and is wound on the core. The method of claim 3,
Wherein:
A metal plate provided as a conductor material; And
And a coating layer formed of a nonconductive material or a ceramic material and coated on at least one of an upper portion and a lower portion of the metal plate. The method according to claim 1,
A first roller bearing portion having a rotation axis parallel to the rotation axis of the rotor portion and provided radially between the rotor portion and the reduction gear portion;
A second roller bearing portion having a rotation axis inclined by 45 degrees with respect to a rotation axis of the rotor portion and provided radially between the stator portion and the rotor portion; And
And a third roller bearing portion provided radially between the frame portion and the upper and lower outer peripheral surfaces of the reduction gear portion to facilitate rotation of the reduction gear portion, wherein the rotation shaft is inclined by 45 degrees with respect to the rotation axis of the rotor portion, Wherein the motor is a motor. 6. The method of claim 5,
Wherein the first roller bearing portion
Wherein an intermediate portion is recessed or convexly formed with a predetermined thickness with respect to a longitudinal direction, and an intermediate portion of the first roller bearing portion and the rotor portion and the speed reducer portion are formed in close contact with each other to prevent the upper portion and the lower portion from being separated from each other. Reduction motor integrated motor. 6. The method of claim 5,
The first bearing portion, the second bearing portion, and the third bearing portion are directly seated on the body of the rotor portion, the stator portion, the reduction gear portion, and the frame portion without the frame for seating the bearings, Wherein the reduction of the rotational speed of the motor is minimized. 6. The method of claim 5,
Wherein the first bearing portion is configured to maximize a tooth contact area in a line contact form between the rotor portion and the speed reducer portion,
The second bearing portion is constituted between the rotor portion and the stator portion formed at the upper portion and the lower portion of the rotor portion,
The third bearing portion is formed between the reduction base portion and the frame portion located at the lower portion,
Wherein a total of five connection points are provided between the rotor portion, the stator portion, the reduction gear portion, and the frame portion, so that shocks and stresses generated from the inside and the outside of the motor are easily dispersed. 6. The method of claim 5,
Wherein the first bearing portion, the second bearing portion, and the third bearing portion are made of one or more of titanium, stainless steel, and a ceramic material. The method according to claim 1,
The rotor portion, the stator portion, the reduction gear portion,
Wherein the composite material is made of a composite material in which titanium metal and a ceramic resin series are combined. The method according to claim 1,
Wherein the frame portion includes a plurality of protruding layers formed along the circumferential surface of the exposed surface portion to increase the heat radiation efficiency and increase the rigidity due to the rib effect. 12. The method of claim 11,
Wherein when the frame portion and the stator portion are coupled to each other, cooling water is provided between the frame portion and the stator portion to improve the cooling efficiency. The method according to claim 1,
And an encoder provided at one side of the stator to detect a slit marked on an outer circumferential surface of the rotor and measure a rotation speed and an amount of rotation of the rotor.

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