KR20230158175A - Prefabricated Motor - Google Patents

Abstract

The present invention relates to a prefabricated motor that can be freely selected and assembled into a radial type motor, an axial type motor, and a spherical type motor through a simple assembly process.
For this purpose, the present invention includes a spherical rotor with a rotation axis coupled to the upper and lower positions and permanent magnets attached at equal intervals along the circumferential direction; a plurality of first stator cores that are coupled to each other along the left and right circumferential directions and are spaced apart along the upper and lower circumferences of the rotor core; a first coil wound on the inner surface of the first stator core and arranged to face the permanent magnet; a plurality of second stator cores that are stacked and coupled to the first stator core in a vertical direction and coupled to each other along left and right circumferential directions, and are spaced apart along a middle circumference of the rotor core; and a second coil wound on the inner surface of the second stator core and arranged to face the permanent magnet. It provides a prefabricated motor characterized in that it includes a.

Description

Prefabricated Motor

The present invention relates to a prefabricated motor, and more specifically, to a prefabricated motor that can be freely assembled into a radial type motor, an axial type motor, and a spherical type motor depending on the intended use.

As is well known, motors are classified into radial type motors, axial type motors, and spherical type motors depending on the direction of magnetic flux.

In addition, the motors are manufactured to essentially include a stator and a rotor, and include a permanent magnet type motor (e.g., synchronous motor) in which a permanent magnet is applied to the rotor and a non-permanent magnet type motor (e.g., a non-permanent magnet type motor that does not use a permanent magnet). , induction motor).

Each of the above motors is manufactured with the motor shape and type selected in advance at the time of design, and is manufactured through mechanical processing and assembly according to the selected motor shape design, so the motor shape cannot be changed later. Motors designed for multiple uses and purposes have the disadvantage of being manufactured in one shape and type.

For example, the radial type motor, axial type motor, and spherical type motor have the disadvantage that they can only be manufactured in one shape and type to suit their intended use and purpose.

The present invention was conceived in consideration of the above points, and allows for free assembly of radial type motors, axial type motors, and spherical type motors through a simple assembly process, making it easy to design motors to suit multiple uses and purposes. The purpose is to provide prefabricated motors that can be manufactured.

In order to achieve the above object, the present invention includes: a spherical rotor with a rotation axis coupled to the upper and lower positions and permanent magnets attached at equal intervals along the circumferential direction; a plurality of first stator cores that are coupled to each other along the left and right circumferential directions and are spaced apart along the upper and lower circumferences of the rotor core; a first coil wound on the inner surface of the first stator core and arranged to face the permanent magnet; a plurality of second stator cores that are stacked and coupled to the first stator core in a vertical direction and coupled to each other along left and right circumferential directions, and are spaced apart along a middle circumference of the rotor core; and a second coil wound on the inner surface of the second stator core and arranged to face the permanent magnet. It provides a prefabricated motor characterized in that it includes a.

Preferably, a first winding groove for winding the first coil is formed on the inner surface of the first stator core, and a second winding groove for winding the second coil is formed on the inner surface of the second stator core. Do it as

More preferably, the entrance portions of the first winding groove and the second winding groove are characterized by protruding locking protrusions for preventing separation of the first coil and the second coil, respectively.

In addition, a first connection groove is further formed on the inner surface of the first stator core branching from the first winding groove to one end, and the first connection groove is formed with the first stator core mutually coupled along the left and right circumferential directions. A first conductive contact material for conductively connecting the first coils is inserted and fastened.

In addition, a second connection groove is further formed on the inner surface of the second stator core branching from the second winding groove to one end, and the second connection groove is formed with the second stator core mutually coupled along the left and right circumferential directions. A second conductive contact material for conductively connecting the second coils is inserted and fastened.

In addition, a third connection groove is further formed on the inner surface of the first stator core, branched from the first winding groove to the upper end or lower end, and on the inner surface of the second stator core, a third connection groove is formed, branched from the second winding groove to the upper end or lower end. A fourth connection groove is further formed to conduct electricity between the first coil of the first stator core and the second coil of the second stator core, which are mutually coupled to the third connection groove and the fourth connection groove in the vertical direction. It is characterized by insertion and fastening of a third conductive contact material for possible connection.

In addition, in order to couple the first stator core and the second stator core to each other along the left and right circumferential directions, a coupling groove is formed on one side of the first stator core and the second stator core, and a coupling protrusion is formed on the other side. It is characterized by

In addition, in order to stack and couple the first stator core and the second stator core in the vertical direction, a coupling groove is formed at the top or bottom of the first stator core, and coupling protrusions are formed on the upper and lower surfaces of the second stator core. It is characterized by

Accordingly, when a plurality of second stator cores coupled to each other along the left and right circumferential directions on the middle circumference of the rotor core are spaced apart, they are assembled into a radial type motor.

Alternatively, when a plurality of first stator cores coupled to each other along the left and right circumferential directions on the upper and lower circumferences of the rotor core are spaced apart, they are assembled into a shaft-type motor.

Alternatively, a plurality of second stator cores coupled to each other along the left and right circumferential directions are disposed spaced apart on the middle circumference of the rotor core, and are coupled to each other along the left and right circumferential directions at the upper and lower circumferences of the rotor core. When a plurality of first stator cores stacked and joined vertically with the second stator core in between are arranged to be spaced apart, they are assembled into a spherical type motor.

By solving the above problems, the present invention provides the following effects.

First, through a simple assembly process of assembling only the first stator core and the second stator core, it can be easily assembled into a motor suitable for use and purpose, such as an electric vehicle, robot joint, etc.

Second, based on an assembly method that differs only in the arrangement structure of the first stator core and the second stator core, it can be easily assembled and used as a radial type motor, axial type motor, and spherical type motor.

1 is a perspective view from the inside of the first stator core and the second stator core constituting the stator of the prefabricated motor according to the present invention;
Figure 2 is a front view showing an example of assembling the prefabricated motor according to the present invention into a radial type motor;
Figure 3 is a cross-sectional view taken along line AA of Figure 2;
Figure 4 is a cross-sectional view taken along line BB of Figure 2;
Figure 5 is a front view showing an example of assembling a prefabricated motor according to the present invention into a shaft-type motor;
Figure 6 is a cross-sectional view taken along line CC of Figure 5;
Figure 7 is a cross-sectional view taken along line DD in Figure 5;
Figure 8 is a front view showing an example of assembling the prefabricated motor according to the present invention with a spherical type motor;
Figure 9 is a cross-sectional view taken along line EE of Figure 8;
Figure 10 is a cross-sectional view taken along line FF of Figure 8;
Figure 11 is a cross-sectional view showing an example in which a stopper for preventing coil separation is formed in the winding groove of the stator core of the prefabricated motor according to the present invention.

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

The attached Figure 1 shows a first stator core and a second stator core constituting the stator of the prefabricated motor according to the present invention, and Figures 2, 5 and 8 show examples of assembly of the prefabricated motor according to the present invention.

The prefabricated motor of the present invention includes a stator 100 mounted on a motor housing, etc., and a rotor 200 rotatably arranged with respect to the stator 100.

As shown in FIGS. 2, 5, and 8, the rotor 200 includes a spherical rotor core 201, a rotation shaft 203 coupled to the upper and lower positions at both ends of the rotor core 201, and It may be composed of a plurality of permanent magnets 202 attached to the surface of the rotor core 201 at equal intervals with different polarities along the circumferential direction.

In particular, the stator 100 is composed of a plurality of second stator cores 120 having the same structure to assemble a radial type motor as shown in FIGS. 1 and 2, or as shown in FIGS. 1 and 5. As shown, it is composed of a plurality of first stator cores 110 having the same structure to assemble a shaft-type motor, or a plurality of first stator cores 110 to assemble a spherical type motor as shown in FIGS. 1 and 8. It may be composed of 110 and a second stator core 120.

Preferably, the first stator core 110 and the second stator core 120 may be made of a non-magnetic or magnetic material that is non-conductive.

The plurality of first stator cores 110 are curved plates having the same curvature as the upper and lower circumferences of the rotor core 201 so as to be arranged along the upper and lower circumferences of the spherical rotor core 201, respectively. It is manufactured in shape.

In addition, the plurality of first stator cores 110 are provided in a structure in which they are coupled to each other along the left and right circumferential directions, and each assembled first stator core 110 forms upper and lower circumferences of the rotor core 201. Accordingly, they may be arranged and spaced apart at predetermined intervals.

In addition, a first winding groove 111 in the shape of a square frame is formed on the inner surface of the first stator core 110 for winding the first coil 112 made of copper or aluminum, and this first winding groove 111 The first coil 112 is wound and arranged to face the permanent magnets 202 attached to the rotor core 201.

Preferably, a stopping protrusion 113 is formed at the entrance of the first winding groove 111 to prevent the first coil 112 from being separated, as shown in FIG. 11.

Accordingly, the first coil 112 wound in the first winding groove 111 of the first stator core 110 is locked by the locking protrusion 113, thereby preventing the first coil 112 from being separated. there is.

The plurality of second stator cores 120 are each arranged along the middle circumference of the spherical rotor core 201 and are manufactured in the shape of a curved plate having the same curvature as the curvature of the middle circumference of the rotor core 201. .

In addition, the plurality of second stator cores 120 are stacked and coupled to the first stator core 110 in the vertical direction and are coupled to each other along the left and right circumferential directions, and each assembled second stator core (120) may be arranged at predetermined intervals along the middle circumference of the rotor core 201.

In addition, a second winding groove 121 in the shape of a square frame is formed on the inner surface of the second stator core 120 for winding the second coil 122 made of copper or aluminum, and this second winding groove 121 The second coil 122 is wound and arranged to face the permanent magnets 202 attached to the rotor core 201.

Preferably, a stopping protrusion 123 is formed at the entrance of the second winding groove 121 to prevent the second coil 122 from being separated, as shown in FIG. 11 .

Accordingly, the second coil 122 wound in the second winding groove 121 of the second stator core 120 is locked by the locking protrusion 123, thereby preventing the second coil 122 from being separated. there is.

Meanwhile, each first coil 112 wound on the plurality of first stator cores 110 must be connected to an external power source or conductively connected to each other.

For this purpose, a first connection groove 114 branched from the first winding groove 111 to one end is further formed on the inner surface of the first stator core 110, and the first connection groove 114 has left and right A first conductive contact material 115 is inserted and fastened to conductively connect the first coils 112 of the first stator core 110, which are coupled to each other along the circumferential direction.

Accordingly, when the plurality of first stator cores 110 are coupled to each other along the left and right circumferential directions, the first coil 112 of each first stator core 110 is in contact with the first conductive contact material 115 at the same time. They are connected in a conductive manner with the first conductive contact material 115 interposed therebetween.

In addition, each second coil 122 wound on the plurality of second stator cores 120 must be connected to an external power source or conductively connected to each other.

For this purpose, a second connection groove 124 branched from the second winding groove 121 to one end is further formed on the inner surface of the second stator core 120, and the second connection groove 124 has left and right A second conductive contact material 125 is inserted and fastened to conductively connect the second coils 122 of the second stator core 120, which are coupled to each other along the circumferential direction.

Accordingly, when the plurality of second stator cores 120 are coupled to each other along the left and right circumferential directions, the second coil 122 of each second stator core 120 is in contact with the second conductive contact material 125 at the same time. They are connected in a conductive manner with the second conductive contact material 125 interposed therebetween.

In addition, the plurality of first stator cores 110 and second stator cores 120 are stacked in the vertical direction and coupled to each other, so that the first coil 112 of the first stator core 110 and the second stator core ( The second coil 122 of 120) must also be connected to enable conduction to each other.

For this purpose, a third connection groove 116 is further formed on the inner surface of the first stator core 110 branching from the first winding groove 111 to the upper or lower end, and the second stator core 120 A fourth connection groove 126 is further formed on the inner surface branching from the second winding groove 121 to the upper or lower end, and the third connection groove 116 and the fourth connection groove 126 have a first coil ( 112) and a third conductive contact material 127 in electrically contactable contact with the second coil 122 are inserted and fastened to be shared.

Accordingly, when the first stator core 110 and the second stator core 120 are stacked and coupled along the vertical direction, the first coil 112 of the first stator core 110 and the second stator core 120 ) is in a state where the second coil 122 is electrically connected by the third conductive contact material 127.

Meanwhile, in order to couple the first stator core 110 to each other along the left and right circumferential directions, a coupling groove 118 is formed on one side of the first stator core 110 and a coupling protrusion 119 is formed on the other side. do.

Accordingly, by inserting and fastening the coupling protrusion 119 formed on the other first stator core 110 into the coupling groove 118 formed on one first stator core 110, a plurality of first stator cores 110 are formed. Can be combined with each other and arranged along the left and right circumferential directions.

In addition, in order to couple the second stator core 120 to each other along the left and right circumferential directions, a coupling groove 128 is formed on one side of the second stator core 120 and a coupling protrusion 129 is formed on the other side. is formed

Accordingly, by inserting and fastening the coupling protrusion 129 formed on the other second stator core 120 into the coupling groove 128 formed on one second stator core 120, a plurality of second stator cores 120 are formed. Can be combined with each other and arranged along the left and right circumferential directions.

In addition, in order to stack and couple the first stator core 110 and the second stator core 120 in the vertical direction, a coupling groove 118 is further formed at the upper or lower part of the first stator core 110, Engaging protrusions 129 are further formed on the upper and lower surfaces of the second stator core 120.

Accordingly, by inserting and fastening the coupling protrusions 129 formed on the upper and lower surfaces of the second stator core 120 into the coupling grooves 118 formed on the upper or lower part of the first stator core 110, the left and right circumferential directions A plurality of first stator cores 110 coupled to each other along the left and right circumferential directions may be stacked and coupled top and bottom, with a plurality of second stator cores 120 coupled to each other interposed therebetween.

Meanwhile, the number of permanent magnet poles of the rotor 200 can be variously configured as 2 poles, 4 poles, 8 poles, 10 poles, etc., and the first stator core 110 or the second stator core is adjusted according to the number of poles. The number of (120) can be selected.

Here, an embodiment of assembling the prefabricated motor of the present invention consisting of the above configuration into various types of motors is as follows.

Radial type motor

The attached FIG. 2 is a front view showing an example of assembling a prefabricated motor according to the present invention into a radial type motor, FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2, and FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2. am.

As shown in FIG. 2, in order to assemble the radial type motor, a plurality of second stator cores 120 are coupled to each other along the left and right circumferential directions as described above at the middle circumference of the rotor core 201. are placed separately.

To this end, as shown in FIG. 4, the operation of inserting and fastening the coupling protrusion 129 formed on the other second stator core 120 into the coupling groove 128 formed on one second stator core 120 is repeated. , a plurality of second stator cores 120 may be coupled to each other along the left and right circumferential directions and may be spaced apart from the middle circumference of the rotor core 201.

At this time, the second stator core 120 is not shown, but may be fixedly mounted on the motor housing.

In addition, when the plurality of second stator cores 120 are coupled to each other along the left and right circumferential directions, as shown in FIG. 3, the second coil 122 of each second stator core 120 is connected to the second conductive contact material 125. ) and at the same time are in a state of being electrically connected with the second conductive contact material 125 interposed therebetween.

Therefore, in a state where the plurality of second stator cores 120 are coupled to each other along the left and right circumferential directions, the second coil 122 of each second stator core 120 is attached to the rotor core 201. By being arranged to face the permanent magnets 202, the rotor 200 can be easily rotated by magnetic flux coming from the permanent magnets 202 in a radial direction.

Axial type motor

The attached FIG. 5 is a front view showing an example of assembling a prefabricated motor according to the present invention into a shaft-type motor, FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5, and FIG. 7 is a cross-sectional view taken along line D-D of FIG. 5. .

As shown in FIG. 5, in order to assemble the shaft-type motor, a plurality of first stator cores 110 coupled to each other along the left and right circumferential directions are spaced apart from each other on the upper and lower circumferences of the rotor core 201. It is placed.

To this end, as shown in FIG. 7, the operation of inserting and fastening the engaging protrusion 119 formed on the other first stator core 110 into the engaging groove 118 formed on one first stator core 110 is performed. By repeating, the plurality of first stator cores 110 may be coupled to each other along the left and right circumferential directions and may be spaced apart from the upper and lower circumferences of the rotor core 201.

At this time, the first stator core 110 is not shown, but may be fixedly mounted on the motor housing.

In addition, when the plurality of first stator cores 110 are coupled to each other along the left and right circumferential directions, as shown in FIG. 6, the first coil 112 of each first stator core 110 is connected to the first conductive contact material 115. ) and at the same time are in a state of being electrically connected with the first conductive contact material 115 interposed therebetween.

Therefore, in a state where the plurality of first stator cores 110 are coupled to each other along the left and right circumferential directions, the first coil 112 of each first stator core 110 is attached to the rotor core 201. By being arranged to face the permanent magnets 202, the rotor 200 can be easily rotated by magnetic flux coming from the permanent magnets 202 in the axial direction.

Spherical type motor

The attached FIG. 8 is a front view showing an example of assembling a prefabricated motor according to the present invention into a spherical type motor, FIG. 9 is a cross-sectional view taken along line E-E of FIG. 8, and FIG. 10 is a cross-sectional view taken along line F-F of FIG. 8. .

As shown in FIG. 8, in order to assemble the spherical type motor, a plurality of second stator cores 120 coupled to each other along the left and right circumferential directions are spaced apart from the middle circumference of the rotor core 201, A plurality of first stator cores 110 are coupled to each other along the left and right circumferential directions on the upper and lower circumferences of the rotor core 201 and are stacked and coupled vertically with the second stator core 120 in between. are placed separately.

For this purpose, as shown in FIG. 10, engaging protrusions 129 formed on the upper and lower surfaces of the second stator core 120 are attached to the engaging groove 118 formed at the upper or lower end of the first stator core 110. By inserting and fastening, the plurality of first stator cores 110 coupled to each other along the left and right circumferential directions can be stacked and coupled top and bottom with the plurality of second stator cores 120 coupled to each other along the left and right circumferential directions in between. there is.

At this time, the first and second stator cores 110 and 120 are not shown, but may be fixedly mounted on the motor housing.

In addition, when the first stator core 110 and the second stator core 120 are stacked and coupled in the vertical direction, the first coil 112 of the first stator core 110 and the first coil 112 of the first stator core 110 are combined as shown in FIG. 9. 2. The second coil 122 of the stator core 120 is electrically connected by the third conductive contact material 127.

Accordingly, in a state where the first stator core 110 and the second stator core 120 coupled to each other along the left and right circumferential directions are stacked up and down, the first coil 112 and the second stator core 110 of the first stator core 110 The second coil 122 of the stator core 120 is arranged to face the permanent magnet 202 attached to the rotor core 201, so that the rotor 200 is moved by magnetic flux from the permanent magnet 202. can be easily rotated.

In this way, through a simple assembly process of assembling only the first stator core 110 having the first coil 112 and the second stator core 120 having the second coil 122, electric vehicles, robot joints, etc. It can be easily assembled and used with radial type motors, axial type motors, and spherical type motors to suit the same usage and purpose.

Although the present invention has been described in detail in various embodiments above, the scope of the present invention is not limited to each of the above-described embodiments, and various modifications by those skilled in the art using the basic concept of the present invention defined in the claims below and improvements will also be included in the scope of rights of the present invention.

100: stator
110: first stator core
111: 1st winding groove
112: first coil
113: Stopper
114: first connection groove
115: First conductive contact material
116: Third connection groove
118: Combining groove
119: combining protrusion
120: Second stator core
121: Second winding groove
122: second coil
123: Stopper
124: Second connection groove
125: Second conductive contact material
126: Fourth connection groove
127: Third conductive contact material
128: Combining groove
129: combining protrusion
200: rotor
201: rotor core
202: permanent magnet
203: rotation axis

Claims (11)

A spherical rotor with a rotating shaft coupled to the upper and lower positions and permanent magnets attached at equal intervals along the circumferential direction;
a plurality of first stator cores that are coupled to each other along the left and right circumferential directions and are spaced apart along the upper and lower circumferences of the rotor core;
a first coil wound on the inner surface of the first stator core and arranged to face the permanent magnet;
a plurality of second stator cores that are stacked and coupled to the first stator core in a vertical direction and coupled to each other along left and right circumferential directions, and are spaced apart along a middle circumference of the rotor core; and
a second coil wound on the inner surface of the second stator core and arranged to face the permanent magnet;
A prefabricated motor comprising:
In claim 1,
A first winding groove for winding the first coil is formed on the inner surface of the first stator core, and a second winding groove for winding the second coil is formed on the inner surface of the second stator core. .
In claim 2,
A prefabricated motor, characterized in that a locking protrusion is formed at the entrance portion of the first winding groove and the second winding groove, respectively, to prevent the first coil and the second coil from being separated.
In claim 2,
A first connection groove branching from the first winding groove to one end is further formed on the inner surface of the first stator core, and the first connection groove of the first stator core is coupled to the first connection groove along the left and right circumferential directions. A prefabricated motor characterized in that a first conductive contact material is inserted and fastened to conductively connect coils.
In claim 2,
A second connection groove branching from the second winding groove to one end is further formed on the inner surface of the second stator core, and the second connection groove of the second stator core is coupled to each other along the left and right circumferential directions. A prefabricated motor characterized in that a second conductive contact material is inserted and fastened to conductively connect coils.
In claim 2,
A third connection groove is further formed on the inner surface of the first stator core, branched from the first winding groove to the upper end or lower end, and a third connection groove branched from the second winding groove to the upper end or lower end is formed on the inner surface of the second stator core. Four connection grooves are further formed to enable conduction between the first coil of the first stator core and the second coil of the second stator core, which are mutually coupled to the third connection groove and the fourth connection groove in the vertical direction. A prefabricated motor characterized by insertion and fastening of a third conductive contact material for connection.
In claim 1,
In order to couple the first stator core and the second stator core to each other along the left and right circumferential directions, a coupling groove is formed on one side of the first stator core and the second stator core, and a coupling protrusion is formed on the other side. prefabricated motor.
In claim 1,
In order to stack and couple the first stator core and the second stator core in the vertical direction, a coupling groove is formed at the top or bottom of the first stator core, and coupling protrusions are formed on the upper and lower surfaces of the second stator core. prefabricated motor.
In claim 1,
A prefabricated motor, characterized in that when a plurality of second stator cores coupled to each other along the left and right circumferential directions are spaced apart from the middle circumference of the rotor core, it is assembled into a radial type motor.
In claim 1,
A prefabricated motor, characterized in that when a plurality of first stator cores coupled to each other along the left and right circumferential directions on the upper and lower circumferences of the rotor core are spaced apart, they are assembled into a shaft-type motor.
In claim 1,
A plurality of second stator cores coupled to each other along the left and right circumferential directions are disposed spaced apart on the middle circumference of the rotor core, and are coupled to each other along the left and right circumferential directions at the upper and lower circumferences of the rotor core. A prefabricated motor characterized in that it is assembled into a spherical type motor when a plurality of first stator cores stacked and joined vertically with two stator cores in between are spaced apart.