KR20200099849A - Motor and compressor including the same - Google Patents

Abstract

The present invention relates to a motor. More specifically, the present invention relates to an internal rotor type motor in which a stator is located on an outer circumferential side of a rotor, and a compressor including the same. In the internal rotor type motor in which the stator is located on the outer circumference side of the rotor, the rotor comprises: a rotor core formed by stacking circular magnetic steel plates; a magnet provided to form a plurality of sides forming a polygon along a circumferential direction of the rotor core; a magnetic flux barrier formed between each of the plurality of magnets; and a rigid reinforcing unit filled in at least a portion of the magnetic flux barrier and formed of a non-magnetic material.

Description

Motor and compressor including the same {Motor and compressor including the same}

The present invention relates to a motor, and in particular, to an inner rotor type motor in which a stator is located on an outer circumference side of a rotor, and a compressor including the same.

In general, the compressor operates by driving a motor. Such a motor includes a stator on which a winding is wound and fixed, and a rotor rotating about the stator.

Usually, the rotor may be composed of a rotor core formed by stacking circular magnetic steel sheets, and a plurality of permanent magnets may be provided in the rotor core.

At this time, if a magnetic flux concentration structure such as a flux barrier is applied in the rotor, torque ripple can be improved and a positive effect can be given to the high efficiency of the motor due to the effect of focusing the magnetic flux. .

However, since the magnetic flux barrier is implemented by forming an empty space along the outer periphery of the rotor core, when the rotor rotates at high speed, not only the stiffness of the rotor becomes weak, but also the strain of the outer diameter of the rotor may increase. .

Therefore, by implementing the magnetic flux barrier, a reliability problem may occur in the rotor core.

Therefore, there is a need for a way to improve the rotational rigidity of the rotor while applying the magnetic flux barrier.

The technical problem to be achieved by the present invention is to solve the above problems, and to provide a motor capable of reinforcing the rotational rigidity of a rotor equipped with a magnetic flux barrier, and a compressor including the same.

In addition, the present invention is to provide a motor capable of reinforcing rotational stiffness of a rotor, which is a mechanical performance, while maintaining the performance of a magnetic flux barrier such as reducing torque ripple and improving the efficiency of the motor, and a compressor including the same.

In addition, the present invention is particularly to provide a motor capable of reinforcing rotational rigidity in a high-speed rotation type motor equipped with a magnetic flux barrier, and a compressor including the same.

As a first aspect for achieving the above technical problem, the present invention may include a rigid reinforcement part filled in at least a part of a flux barrier and formed of a non-magnetic material.

As described above, the present invention can provide a structure that maintains the magnetic flux concentration performance of the magnetic flux barrier while reinforcing the rotational rigidity by filling the magnetic flux barrier space excluding the space in which the magnet is inserted in the rotor with a nonmagnetic material that does not affect the magnetic field. have.

In other words, according to the present invention, while maintaining the magnetic flux concentration performance (torque ripple reduction and motor efficiency improvement) of the flux barrier, the rotor rotational stiffness, which is a mechanical performance, can be reinforced. In particular, in a high-speed rotation type motor The effect can be greater.

Since the rigid reinforcing part can fill the empty space of the magnetic flux barrier by using a non-magnetic injection material, it can fill the empty space of the magnetic flux barrier without tolerance (without empty space) compared to the case of inserting an external material.

Specifically, in the present invention, in the inner rotor type motor in which the stator is located on the outer circumference side of the rotor, the rotor is a rotor core formed by stacking circular magnetic steel sheets, and a polygonal along the circumferential direction of the rotor core. A magnet provided to form a plurality of sides forming a magnet, a magnetic flux barrier formed in a portion between each of the plurality of magnets, and a rigid reinforcing part filled in at least a part of the magnetic flux barrier and formed of a non-magnetic material. have.

In addition, between the magnetic flux barriers, a bridge portion disposed between each of the plurality of magnet insertion portions and formed in a radial direction of the rotor core may be provided.

In addition, the rigidity reinforcing part may be filled in at least a portion of the barrier groove.

In addition, the stiffness reinforcing part may contact the end side of the magnet.

In addition, the stiffness reinforcing part may include a magnet stopper that contacts an end side of the magnet to support pressure by centrifugal force due to rotation of the magnet.

In addition, the stiffness reinforcing portion may include a magnet stopper portion in contact with the end side of the magnet, and a support portion filled in the middle side of the barrier groove.

In addition, the stiffness reinforcing part may be for preventing deformation of the magnetic flux barrier.

In addition, the rigid reinforcement part may be filled with a non-magnetic injection material to at least a portion of the magnetic flux barrier.

As a second aspect for achieving the above technical problem, the present invention may be configured to include a motor and a compressor mechanism including a rigid reinforcement part filled in at least a part of a flux barrier and formed of a non-magnetic material.

Such a compressor mechanism unit, a rotating shaft coupled to the rotor of the motor to rotate, a frame installed on one side of the motor to support the rotating shaft, a fixed scroll coupled to the frame to form a compression space, and eccentrically coupled to the rotating shaft And, it is located in the compression space, it is coupled to the fixed scroll may include a orbiting scroll for compressing the fluid by performing orbiting.

The present invention has the following effects.

First, according to the present invention, it is possible to reinforce the rotational stiffness of the rotor, which is a mechanical performance, while maintaining the performance of the magnetic flux barrier, such as reducing torque ripple and improving the efficiency of the motor.

The present invention can be particularly effective in a high-speed rotary motor.

According to the embodiment of the present invention described above, since the rigid reinforcing portion can be formed using an injection product of a non-magnetic material, it can be efficiently constructed without tolerance. In addition, since it can be manufactured in one process, it may take less time.

Accordingly, the internal force of the rotational stiffness of the motor rotor may increase, thereby reducing the possibility of generating vibration or noise.

1 is a cross-sectional view showing a compressor according to an embodiment of the present invention.
2 is a front view showing the rotor of the motor according to the first embodiment of the present invention.
3 is an enlarged view of part A of FIG. 2.
4 is a partially enlarged view showing a rotor of a motor according to a second embodiment of the present invention.
5 is a partially enlarged view showing a rotor of a motor according to a third embodiment of the present invention.
6 and 7 are schematic diagrams showing the deformation of the outer diameter of the rotor due to the rotation of the rotor without the rigidity reinforcing portion provided.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

While the present invention allows various modifications and variations, specific embodiments thereof are illustrated and shown in the drawings, and will be described in detail below. However, it is not intended to limit the present invention to the particular form disclosed, but rather the present invention encompasses all modifications, equivalents and substitutions consistent with the spirit of the present invention as defined by the claims.

When an element such as a layer, region or substrate is referred to as being “on” another component, it will be understood that it may exist directly on another element or there may be intermediate elements between them. .

Although terms such as first, second, etc. may be used to describe various elements, components, regions, layers and/or regions, these elements, components, regions, layers and/or regions It will be understood that it should not be limited by these terms.

1 is a cross-sectional view showing a compressor according to an embodiment of the present invention. 1 shows a horizontal scroll type compressor.

This horizontal scroll type compressor 100 includes a casing 110 having a sealed inner space, and components for compressing fluid may be installed in the casing 110. That is, in the casing 110, a motor 200, a rotating shaft 300, a fixed scroll 500 and a revolving scroll 600 engaged with each other, and a frame 400 in which the rotating shaft 300 is installed may be included. .

The casing 110 for forming a closed space may be formed in a horizontal cylinder shape. The casing 110 may be provided with a suction port 111 and a discharge port 112 for entering and exiting the refrigerant.

A motor 200 for generating a rotational force may be installed in the inner space of the casing 110. In addition, a rotation shaft 300 coupled to the rotor 210 of the motor 200 may be installed.

The rotation shaft 300 may be eccentrically coupled to the orbiting scroll 600. That is, the motor 200 may provide rotational force through which the orbiting scroll 600 may orbit through the rotation shaft 300.

A frame 400 may be installed on one side of the motor 200. This frame 400 may be formed of a material having high hardness as a main frame.

This frame 400 may provide a support structure in which the fixed scroll 500 and the orbiting scroll 600 can be installed. That is, the fixed scroll 500 may be coupled to the frame 400 to form a compressed space 501.

At this time, the casing 110 includes a discharge chamber 101 in which refrigerant gas is discharged from the compressed space 501, and the discharge port 112 is provided in the discharge chamber 101, and the refrigerant in the discharge chamber 101 May be discharged through the discharge port 112.

In the discharge chamber 101, the oil may be separated from the refrigerant through the oil separator 113, and in this case, the oil separated on the lower side may be sucked through the oil pickup and supplied to each rotating part.

A separate inverter space may be provided on the side of the suction port 111 of the casing 110, and the inverter unit 120 may be located in the inverter space.

The motor 200 is installed in the inner space of the casing 110 to generate rotational force, and a stator including a stator 220 on which a winding is installed and an insulator 230 coupled to the stator 220 to insulate the winding It may include an assembly and a rotor 210 that is coupled to the stator assembly and rotates.

As such, the motor 200 may have an internal rotor-shaped structure in which the stator 220 is located on the outer circumferential side of the rotor 210. The configuration of the motor 200 will be described in detail later.

The inverter unit 120 installed in the inverter space may be electrically connected to the motor 200 to drive the motor 200.

Meanwhile, a bearing 310 for sealing a compression space may be installed at one side of the frame 400 while fixing the rotation shaft 300 so as to be rotatable. On the other hand, in some cases, the bearing 320 is also installed at the inner end side of the casing 100 so that the rotating shaft 300 can rotate smoothly.

Between the fixed scroll 500 and the frame 400, an orbiting scroll 600 may be installed that is coupled to the fixed scroll 500 and performs orbiting motion with respect to the fixed scroll 500.

The orbiting scroll 600 is connected to the rotation shaft 300 and is eccentrically coupled to the center of the rotation shaft 300 to implement a orbiting motion.

At this time, an elastic plate 800 forming a circular shape may be interposed between the fixed scroll 500 and the frame 400.

This elastic plate 800 elastically supports the orbiting scroll 600 with respect to the fixed scroll 500.

In this way, in the scroll type compressor 100, the compression chamber 501 is formed between the orbiting scroll 600 and the fixed scroll 500, and the back pressure chamber is between the orbiting scroll 600 and the frame 400 ( 401) can be formed.

A balance weight 700 may be installed in the back pressure chamber 401 to offset centrifugal force generated by the orbiting of the orbiting scroll 600. The balance weight 700 may be installed on the rotation shaft 300 and may be installed on a side opposite to the eccentric direction of the rotation shaft 300.

2 is a front view showing the rotor of the motor according to the first embodiment of the present invention. In addition, FIG. 3 is an enlarged view of part A of FIG. 2.

Referring to FIG. 2, the rotor 210 of the motor 200 may be composed of a rotor core 211 formed by stacking circular magnetic steel plates.

The rotor core 211 may be configured by inserting a magnet 212 to form a plurality of sides forming a polygon along the circumferential direction thereof.

As shown, the magnet 212 may be provided to form a polygon, for example, may be formed to form a regular hexagon in a substantial shape. Here, the actual shape may mean that each side of the magnet 212 is not connected to each other, and thus is not an exact regular hexagon.

Meanwhile, a flux barrier 213 (FIG. 3) may be formed between each of the magnets 212. The magnetic flux barrier 213 may exert the effect of focusing the magnetic flux.

The magnetic flux barrier 213 may be an empty space through which the magnetic flux does not pass (filled with air), and in some cases, other materials through which the magnetic flux does not pass may be located. That is, the magnetic flux barrier 213 may mean a barrier groove.

As described above, the magnetic flux barrier 213 prevents the magnetic flux from passing through at the corresponding position, thereby exerting a magnetic flux concentration effect such that the magnetic flux is concentrated at other positions.

Meanwhile, referring to FIG. 3, a bridge portion 219 may be positioned between the magnetic flux barriers 213. The bridge portion 219 may be positioned between each of the plurality of magnets 212 and formed in the radial direction of the rotor core 211. Magnetic flux may pass through the bridge part 219.

The magnetic flux cannot pass through the portion where the magnetic flux barrier 213 is located, but the magnetic flux can pass through other parts including the bridge part 219 and the part of the magnet 212 that does not overlap with the magnetic flux barrier 213. Therefore, the magnetic flux barrier 213 is capable of exerting a magnetic flux concentration effect.

The magnetic flux barrier 213 may be formed in a symmetrical shape on both sides of the bridge part 219.

At this time, at least a part of the magnetic flux barrier 213 may be a rigid reinforcing part 240 formed of a non-magnetic material. The rigid reinforcement part 240 may be filled in at least a portion of the magnetic flux barrier 213 with a nonmagnetic injection product.

That is, the magnetic flux barrier space made of the magnetic flux barrier 213 may be provided with a non-magnetic rigid reinforcing part 240 that does not affect a magnetic field.

Accordingly, the structure of the stiffness reinforcing part 240 maintains the magnetic flux concentration performance of the magnetic flux barrier, but provides a structure that enhances rotational rigidity.

That is, according to the present invention, while maintaining the magnetic flux concentration performance of the magnetic flux barrier 213, the rotational stiffness of the rotor 210, which is a mechanical performance, can be reinforced. It can be bigger.

Since the rigid reinforcing part 240 can fill at least a part of the empty space of the magnetic flux barrier 213 by using a non-magnetic injection material, the magnetic flux barrier 213 without tolerance (without empty space) compared to the case of inserting an external material. ) Can fill in the empty space.

In this case, the stiffness reinforcing part 240 may contact the end side of the magnet 212. Damage to the rotor 210 provided with the magnetic flux barrier 213 may be caused by the centrifugal force of the magnet 212 when the rotor 210 rotates, so the stiffness reinforcement part 240 contacts the magnet 212 Thus, it may be advantageous to prevent the action of the magnet 212 by the centrifugal force.

In addition, the stiffness reinforcing portion 240 may be positioned at the end side of the magnet 212 to prevent the shape of the bridge portion 219 from being damaged.

In general, since the space into which the magnet 212 is inserted may be connected to the magnetic flux barrier 213, the magnet 212 may protrude to the outside of the stepped 214 to come into contact with the magnetic flux barrier 213. Therefore, it may be advantageous for the rigid reinforcement part 240 to intercept the end of the magnet 212 and the stepped jaw 214 together.

4 is a partially enlarged view showing a rotor of a motor according to a second embodiment of the present invention.

Referring to FIG. 4, a flux barrier 213 may be formed between each of the magnets 212. The magnetic flux barrier 213 may exert the effect of focusing the magnetic flux.

The magnetic flux barrier 213 may be an empty space through which the magnetic flux does not pass (filled with air), and in some cases, other materials through which the magnetic flux does not pass may be located. That is, the magnetic flux barrier 213 may mean a barrier groove.

As described above, the magnetic flux barrier 213 prevents the magnetic flux from passing through at the corresponding position, thereby exerting a magnetic flux concentration effect such that the magnetic flux is concentrated at other positions.

A bridge portion 219 may be positioned between the magnetic flux barriers 213. The bridge portion 219 may be positioned between each of the plurality of magnets 212 and formed in the radial direction of the rotor core 211. Magnetic flux may pass through the bridge part 219.

The magnetic flux cannot pass through the portion where the magnetic flux barrier 213 is located, but the magnetic flux can pass through other parts including the bridge part 219 and the part of the magnet 212 that does not overlap with the magnetic flux barrier 213. Therefore, the magnetic flux barrier 213 is capable of exerting a magnetic flux concentration effect.

The magnetic flux barrier 213 may be formed in a symmetrical shape on both sides of the bridge part 219.

In this case, a rigid reinforcing part 241 formed of a non-magnetic material may be positioned on at least a part of the magnetic flux barrier 213. The rigid reinforcement part 241 may be filled in at least a portion of the magnetic flux barrier 213 with a non-magnetic injection product.

That is, the magnetic flux barrier space formed of the magnetic flux barrier 213 may be provided with a non-magnetic rigid reinforcing part 241 that does not affect a magnetic field.

Accordingly, the structure of the stiffness reinforcing part 241 maintains the magnetic flux concentration performance of the magnetic flux barrier, but provides a structure that enhances rotational rigidity.

That is, according to the present invention, it is possible to reinforce the rotational rigidity of the rotor 210, which is a mechanical performance, while maintaining the magnetic flux concentration performance of the magnetic flux barrier 213. In particular, it is effective in a high-speed rotation type motor. It can be bigger.

Since the rigid reinforcement part 241 can fill at least a part of the empty space of the magnetic flux barrier 213 by using a non-magnetic injection material, the magnetic flux barrier 213 without tolerance (without empty space) compared to the case of inserting an external material. ) Can fill in the empty space.

In this case, the stiffness reinforcing part 241 may contact the end side of the magnet 212. Damage to the rotor 210 provided with the magnetic flux barrier 213 may be caused by the centrifugal force of the magnet 212 when the rotor 210 rotates, so the stiffness reinforcing part 241 comes into contact with the magnet 212. Thus, it may be advantageous to prevent the action of the magnet 212 by the centrifugal force.

In addition, the rigidity reinforcing portion 241 may be positioned at the end side of the magnet 212 to prevent damage to the shape of the bridge portion 219.

In general, since the space into which the magnet 212 is inserted may be connected to the magnetic flux barrier 213, the magnet 212 may protrude to the outside of the stepped 214 to come into contact with the magnetic flux barrier 213. Accordingly, it may be advantageous for the rigid reinforcing portion 241 to intercept the end of the magnet 212 and the stepped jaw 214 together.

That is, the stiffness reinforcing part 241 according to the present embodiment is intensively located in the magnetic flux barrier 213 at the end of the magnet 212 and the stepped portion 214 positioned at the end side of the magnet 212 can do.

A portion of the magnetic flux barrier 213 in which the rigidity reinforcing portion 241 is not located may be maintained as an empty space 215.

As described above, since damage to the rotor 210 provided with the magnetic flux barrier 213 may be caused by the centrifugal force of the magnet 212 when the rotor 210 rotates, as in this embodiment, the stiffness reinforcing part Even if 241 is partially positioned only on the end side of the magnet 212, its effect can be exhibited.

5 is a partially enlarged view showing a rotor of a motor according to a third embodiment of the present invention.

Referring to FIG. 4, a flux barrier 213 may be formed between each of the magnets 212. The magnetic flux barrier 213 may exert the effect of focusing the magnetic flux.

The magnetic flux barrier 213 may be an empty space through which the magnetic flux does not pass (filled with air), and in some cases, other materials through which the magnetic flux does not pass may be located. That is, the magnetic flux barrier 213 may mean a barrier groove.

As described above, the magnetic flux barrier 213 prevents the magnetic flux from passing through at the corresponding position, thereby exerting a magnetic flux concentration effect such that the magnetic flux is concentrated at other positions.

A bridge portion 219 may be positioned between the magnetic flux barriers 213. The bridge portion 219 may be positioned between each of the plurality of magnets 212 and formed in the radial direction of the rotor core 211. Magnetic flux may pass through the bridge part 219.

The magnetic flux cannot pass through the portion where the magnetic flux barrier 213 is located, but the magnetic flux can pass through other parts including the bridge part 219 and the part of the magnet 212 that does not overlap with the magnetic flux barrier 213. Therefore, the magnetic flux barrier 213 is capable of exerting a magnetic flux concentration effect.

The magnetic flux barrier 213 may be formed in a symmetrical shape on both sides of the bridge part 219.

At this time, rigid reinforcing portions 241 and 242 formed of a non-magnetic material may be positioned on at least a part of the magnetic flux barrier 213. These rigid reinforcing parts 241 and 242 may be filled in at least a portion of the magnetic flux barrier 213 by injection of a non-magnetic material.

That is, the magnetic flux barrier space formed of the magnetic flux barrier 213 may be provided with non-magnetic rigid reinforcing portions 241 and 242 that do not affect the magnetic field.

Accordingly, the structure of the stiffness reinforcing portions 241 and 242 maintains the magnetic flux concentration performance of the magnetic flux barrier, but provides a structure that enhances rotational rigidity.

In this case, the stiffness reinforcing part 241 may contact the end side of the magnet 212 as in the second embodiment described with reference to FIG. 4. Damage to the rotor 210 provided with the magnetic flux barrier 213 may be caused by the centrifugal force of the magnet 212 when the rotor 210 rotates, so the stiffness reinforcing part 241 comes into contact with the magnet 212. Thus, it may be advantageous to prevent the action of the magnet 212 by the centrifugal force.

Since the stiffness reinforcing portion 241 partially positioned on the end side of the magnet 212 is the same as in the case of the second embodiment, a duplicate description will be omitted.

The stiffness reinforcing portions 241 and 242 according to the present embodiment include a portion 241 in which the end portion of the magnet 212 and the stepped portion 214 positioned at the end side of the magnet 212 are located within the magnetic flux barrier 213; , The first reinforcing part) and the intermediate part 242 (hereinafter, hereinafter, the second reinforcing part) in the magnetic flux barrier 213 may be located separately.

In addition, functionally, the first reinforcing portion 241 may be referred to as a magnet stopper 241 and the second reinforcing portion 242 may be referred to as a support portion 242.

Accordingly, portions of the magnetic flux barrier 213 in which the stiffness reinforcing portions 241 and 242 are not located may be maintained as empty spaces 215 and 217 (hereinafter, referred to as a first space and a second space, respectively).

That is, the first space 215 may be located between the first reinforcing part 241 and the second reinforcing part 242, and the second space 215 may be located between the second reinforcing part 242 and the end of the magnetic flux barrier 213. The space 217 may be located.

As described above, damage to the rotor 210 provided with the magnetic flux barrier 213 may be caused by the centrifugal force of the magnet 212 when the rotor 210 rotates, so as in this embodiment, the first reinforcement The effect can also be exhibited by the configuration of the portion 241 (magnetic stopper). However, in this way, when the second reinforcing part 242 (support part) is configured together, the stiffness of the remaining part of the magnetic flux barrier 213 may be additionally reinforced.

6 and 7 are schematic diagrams showing the deformation of the outer diameter of the rotor due to the rotation of the rotor without the rigidity reinforcing portion provided.

6 shows a state in which a magnetic flux barrier 218 without a rigid reinforcing part according to the present invention is formed in the rotor core 211 of the rotor 210. Particularly, in the B portion, two adjacent magnetic flux barriers 218 may be continuously positioned, so that the rigidity may be more weak.

As mentioned above, this magnetic flux barrier 218 can be made of an empty space (filled with air) and thus can be rotated.

The cause of this deformation may be due to a contact with a stator positioned around it or a centrifugal force of the magnet 212.

FIG. 7 shows a state in which the magnetic flux barrier 218 is deformed due to the rotation of the rotor 210 on which the magnetic flux barrier 218 without the rigidity reinforcing part is formed.

Particularly, in FIG. 6, part B is deformed as in part C of FIG. 7, so that the space of the magnetic flux barrier 218 is narrowed.

That is, when the rotor 210 rotates at high speed, not only the rigidity of the rotor 210 is weakened, but the magnetic flux barrier 218 is deformed, so that the strain rate of the outer diameter of the rotor 210 may be increased.

Therefore, by implementing the magnetic flux barrier 218, a reliability problem may occur in the rotor core.

However, according to the present invention, it is possible to reinforce the rotational rigidity of the rotor 210, which is a mechanical performance, while maintaining the performance of the magnetic flux barrier 213 such as reducing torque ripple and improving the efficiency of the motor.

The present invention can be particularly effective in a high-speed rotary motor.

According to the embodiment of the present invention described above, since the rigid reinforcing portions 240, 241, and 242 can be formed using a non-magnetic material, it can be efficiently constructed without tolerance. In addition, since it can be manufactured in one process, it may take less time.

Accordingly, the internal force of the rotational rigidity of the motor rotor 210 may increase, thereby reducing the possibility of generating vibration or noise.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are only presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is apparent to those of ordinary skill in the art that other modified examples based on the technical idea of the present invention may be implemented.

100: compressor 110: casing
120: inverter unit
200: motor 210: rotor
220: stator 230: insulator
300: rotary shaft 400: frame
500: fixed scroll 600: orbiting scroll
700: balance weight 800: elastic plate

Claims (9)

In the inner rotor type motor in which the stator is located on the outer peripheral side of the rotor,
The rotor is,
A rotor core formed by stacking circular magnetic steel sheets;
A magnet provided to form a plurality of sides forming a polygon along the circumferential direction of the rotor core;
A magnetic flux barrier formed between each of the plurality of magnets; And
And a rigid reinforcing portion filled in at least a portion of the magnetic flux barrier and formed of a non-magnetic material. The motor of claim 1, wherein a bridge portion formed in a radial direction of the rotor core is provided between the magnetic flux barriers. The motor of claim 2, wherein the stiffness reinforcing part is filled in at least a part of the barrier groove. The motor according to claim 1, wherein the rigidity reinforcing part is in contact with an end side of the magnet. The motor according to claim 1, wherein the stiffness reinforcing part includes a magnet stopper that contacts an end side of the magnet to support pressure by centrifugal force caused by rotation of the magnet. The method of claim 2, wherein the rigidity reinforcing part,
A magnet stopper portion in contact with the end side of the magnet; And
A motor comprising a support portion filled in the middle side of the barrier groove. The motor of claim 1, wherein the stiffness reinforcing part prevents deformation of the magnetic flux barrier. The motor according to claim 1, wherein the stiffness reinforcing part is filled with a non-magnetic injection material to at least a portion of the magnetic flux barrier. The motor of any one of claims 1 to 8; And
A rotating shaft coupled to the rotor of the motor to rotate;
A frame installed on one side of the motor to support the rotation shaft;
A fixed scroll coupled to the frame to form a compression space; And
And a orbiting scroll eccentrically coupled to the rotary shaft, located in the compression space, and coupled to the fixed scroll to perform orbital motion to compress fluid.

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