KR100365010B1 - Structure for Arranging Coils in Linear Electric Motor of Rotational and Linear Movement Type - Google Patents

Abstract

The present invention relates to a coil arrangement of a rotary and linear motion linear motor, the outer case; A shaft in which a plurality of permanent magnets are assembled and arranged on an outer circumferential surface thereof; A first armature coil unit assembled by winding an annular winding coil in an inner region of the outer case corresponding to the linear movement region of the shaft by using a self-sealing coil structure; And a second armature coil part fixed by a support member to an inner region of the outer case corresponding to the rotational movement region of the shaft.

In the present invention, it is possible to remove the leakage of the coil end to improve the electrical performance, and by winding the coil by arranging using a cylinder can be mechanically consolidated and the air gap can be kept constant.

Description

Structure for Arranging Coils in Linear Electric Motor of Rotational and Linear Movement Type}

The present invention relates to a coil arrangement of a linear motor with rotational and linear motion, and more particularly, to a structure for winding and arranging coils of an armature coil in a linear motor capable of rotation and linear motion.

Rotational and linear motion linear motors are configured to perform rotational and linear motion on the same axis. Rotor and linear motion linear motors consist of a stator and a mover to perform rotational and linear motion on the same axis. The stator consists of an outer case and an armature coil part, and the mover consists of a shaft and a number of permanent magnets. . Linear and armature coils and rotary motion armatures are divided into two armature coils mounted inside the outer case for rotation and linear motion. The coil is separated and composed.

The configuration of a rotary and linear linear motor for performing rotation and linear motion is as follows.

1 is a cross-sectional view of a conventional rotary and linear motion linear motor. As shown, the stator 1 is composed of an outer case 1a, a first armature coil part 1b and a second armature coil part 1c, and the mover 2 has a shaft 2b and a plurality of It consists of a permanent magnet 2a. The plurality of permanent magnets 2a are arranged in a lattice shape on the outer circumferential surface of the shaft 2b as shown in FIG. 2. The first armature coil portion 1b, which is assembled on a plurality of permanent magnets 2a arranged in a lattice shape, is wound in a drum winding and assembled to the outer case 1a using the support member 1d. The plurality of permanent magnets 2a are wound in a solid phase in the same manner as the first armature coil parts 1b and are arranged in a lattice shape in a direction orthogonal to the first armature coil parts 1b. Is assembled on top.

The first armature coil part 1b assembled in a vertical direction on a plurality of permanent magnets 2a arranged in a lattice shape and arranged on the outer circumferential surface of the shaft 2b performs linear motion, and the first armature coil part ( The second armature coil part 1c assembled in the direction orthogonal to 1b) performs a rotational motion. Here, the three-phase (U, V, W, U ', V', W ') is applied to the first armature coil unit 1b wound in the solid phase in the linear motion region of the shaft 2b, and the second armature Three phases are similarly applied to the coil part 1c.

In the case where the armature coil part is separated into a first armature coil part and a second armature coil part, a conventional first armature coil part assembled in a linear motion region deforms each coil constituting a coil block used in a flat linear motor in a circular shape. Is used. When each coil constituting the coil block used in the flat balanced linear motor is deformed in a circular shape, the leakage at each coil end not only reduces the overall performance of the rotary and linear motion cylindrical linear motor, but also causes uneven thrust. There is a problem that occurs.

An object of the present invention is to arrange the first armature coil unit assembled in the linear motion region in the annular region to prevent the leakage of the coil end in the rotary and linear motion linear motor to improve the performance of the overall rotation and linear motion linear motor It is to provide a coil arrangement structure to assemble.

Another object of the present invention is to assemble using a cylinder formed of a non-conductive material of the first armature coil unit in a rotary and linear motion linear motor to firmly fix the first armature coil unit and to maintain a constant void And it provides a coil arrangement structure of the linear motor linear motor.

1 is a cross-sectional view of a conventional rotary and linear motion linear motor,

2 is a view showing the arrangement of the permanent magnet shown in FIG.

3 is a cross-sectional view of a rotary and linear motion linear motor to which a coil arrangement structure according to the present invention is applied;

4 is a perspective view of the annular winding coil shown in FIG.

5 is a view showing a winding structure of the annular winding coil group shown in FIG.

Figure 6 is a cross-sectional view of a rotary and linear motion linear motor showing another embodiment of the coil arrangement structure according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: mover 11: shaft

12: permanent magnet 20: stator

21: outer case 22: the first armature coil unit

23: second armature coil portion 24: support member

25: bobbin 26: cylinder

Coil arrangement of the rotary and linear motion linear motor of the present invention is the outer case; A shaft in which a plurality of permanent magnets are assembled and arranged on an outer circumferential surface thereof; A first armature coil unit assembled by winding an annular winding coil in an inner region of the outer case corresponding to the linear movement region of the shaft by using a self-sealing coil structure; And a second armature coil part fixed by a support member to an inner region of the outer case corresponding to the rotational movement region of the shaft.

In addition, the first armature coil unit is wound to support the coil wound in a self-fusion coil structure using only a bobbin or a self-fusion winding coil, the first armature coil portion is a coil on the outer peripheral surface of the cylinder formed of a non-conductive material or a non-magnetic material After the winding is characterized in that the assembly to the inside of the outer case.

(Example)

Hereinafter, the present invention will be described with reference to the accompanying drawings.

3 is a cross-sectional view of a rotary and linear motion linear motor to which a coil arrangement structure according to the present invention is applied, and FIG. 4 is a perspective view of the annular winding coil shown in FIG. 3.

As shown, the present invention is the outer case 21, the shaft 11, which is assembled to the outer peripheral surface of the permanent magnet portion 12, the plurality of permanent magnets (N, S, N, S) is assembled and arranged, the shaft The first armature coil part 22 is wound by an annular winding coil and assembled using the self-melting coil structure in the inner region of the outer case 21 corresponding to the linear movement region of the eleven, and the shaft 11 The second armature coil unit 23 is fixed to the inner region of the outer case 21 corresponding to the rotational movement region with the support member 24 to be assembled.

Referring to the configuration and operation of the present invention in more detail as follows.

Rotary and linear motion linear motor of the present invention is largely composed of a stator 20 and a mover (10). First, looking at the configuration of the mover 10 is composed of a shaft 11 and a permanent magnet portion 12. The permanent magnet part 12 is composed of a plurality of permanent magnets (N, S, N, S), a plurality of permanent magnets (N, S, N, S) is arranged in a grid shape on the outer peripheral surface of the shaft 11 Are assembled. In the present invention, the permanent magnet portion 12 has been described as an example of arranging a plurality of permanent magnets (N, S, N, S) in a lattice shape, but it is informed that the arrangement structure other than the lattice amount is also applied.

The first armature coil portion 22 of the stator 20 assembled to maintain a plurality of permanent magnets (N, S, N, S) in a lattice shape and assembled with a permanent magnet portion 12 and a predetermined gap is maintained. And the second armature coil part 23 are assembled to the outer case 21. The first armature coil part 22 and the second armature coil part 23 assembled to the outer case 23 are described with an example in which three phases are applied.

The first armature coil part 22, which is assembled to the outer case 21, is assembled in the inner region of the outer case 21, which corresponds to the linear motion region of the shaft 11, and the second armature coil part 23 is It is assembled by winding with an annular winding coil and fixing it with the support member 24 in the inner region of the outer case 21 corresponding to the rotational movement region of the shaft 11. The first armature coil unit 22 assembled in the annular winding will be described below with reference to FIG. 5.

5 is a diagram illustrating a winding structure of the annular winding coil group illustrated in FIG. 3. As shown, when three phases are applied, the first armature coil unit 22 is sequentially arranged in the order of U, V, W, U ', V', and W 'phases, and the coils of each phase are annular to the coil ( Not shown) is wound. After winding the coil in an annular winding, it is arranged on the outer case 21 by using a self-sealing structure to assemble the first armature coil part 22 so that the end of the coil does not exist to remove leakage generated at the end of the coil. It becomes possible. As a result, the distribution of the thrust is uniform in the circumferential direction of the first armature coil unit 22, thereby improving and stabilizing the electrical performance of the linear motor with rotational and linear motion, thereby improving the magnitude of the thrust as a whole.

A structure for more firmly fixing and assembling the first armature coil unit 22 assembled to the outer case 21 by using a self-fusion coil structure that is wound and assembled in an annular region will be described with reference to FIG. 6. As follows.

Figure 6 is a cross-sectional view of a rotary and linear motion linear motor showing another embodiment of the coil arrangement structure according to the present invention. As shown, the first armature coil unit 22 is disposed to be wound to support the coil wound in the self-fusion coil structure using the bobbin 25.

The first armature coil part 22 wound in the annular region maintains a certain gap with the permanent magnet part 12 when there is no additional support member (not shown) during assembly using the self-fusion coil structure on the outer case 21. The mechanical structure must be designed to In this case, in order to prevent the mechanical structure from being designed into a complicated structure, the first armature coil part 22 is wound by supporting the coil wound with the self-fusion coil structure using the bobbin 25 or by supporting only the self-fusion winding coil. It is possible to keep the gap and the gap between coils constant).

The accompanying drawings show an embodiment of the coil arrangement structure of the first armature coil unit 22 of the present invention for assembling to the outer case 21 by keeping the gap and spacing of the first armature coil unit 22 constant. The description is as follows.

7 is a side cross-sectional view of the rotary and linear linear motor shown in FIG. As shown, the first armature coil unit 22 is wound on the outer circumferential surface of the cylinder 26 formed of a non-conductive material and then assembled into the inner case 21. Furthermore, the cylinder 26 may be formed of a nonmagnetic material, and when the first armature coil part 22 is assembled inside the outer case 21, the coil 26 is first wound around the cylinder 26 and then the outer case ( 21) to be assembled inside.

By assembling the first armature coil part 22 using the cylinder 26 formed of a non-conductive material or a non-magnetic material, the structure of the coil can be mechanically supported firmly, and the gaps can be kept constant. .

As described above, the present invention can eliminate the leakage of the coil end by winding the first armature coil unit assembled in the linear motion region in the rotational and linear motion linear motor in an annular winding to improve the electrical performance And, by winding the coil by arranging the first armature coil unit using a bobbin or a cylinder, it provides an effect of mechanically solidifying and maintaining a constant void.

Claims (4)

In the coil arrangement structure of the linear motor of rotational and linear motion, With outer case; A shaft in which a plurality of permanent magnets are assembled and arranged on an outer circumferential surface thereof; A first armature coil unit assembled by winding an annular winding coil in an inner region of the outer case corresponding to the linear movement region of the shaft by using a self-sealing coil structure; A second armature coil part fixed by a support member to an inner region of the outer case corresponding to the rotational movement region of the shaft, The first armature coil unit may be wound to support a coil wound in a self-fusion coil structure using a bobbin or only a self-fusion winding, And the first armature coil unit is wound around the outer circumferential surface of the cylinder formed of a non-conductive material and then assembled into the inner case. delete delete The method of claim 1, The cylinder formed of the non-conductive material is a coil arrangement structure of a linear and linear motion-type linear motor, characterized in that also formed of a non-magnetic material.