JP2003047229A - Winding coil unit, linear core unit, linear motor, and assembly method of linear core unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding coil unit, a linear core unit, a linear motor, and an assembly method of a linear core unit which can reduce assembly man- hours and reduce a manufacturing cost. SOLUTION: A winding coil unit 10 comprises a plurality of winding coils 12a, 12b, 12c, and 12d which are composed of a plurality of insulating bobbins 13a, 13b, 13c, and 13d and one wire 11 wound continuously in all the bobbins 13a, 13b, 13c, and 13d with length parts which are not wound and is put onto a plurality of pole teeth of a linear core 41. Further, a linear core unit 40, a linear motor 5, and an assembly method of a linear core unit 40 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding coil unit capable of simplifying the process of assembling a linear core unit and a linear motor by reducing the number of times the windings wound on each bobbin are connected. , A linear core unit, a linear motor, and a method of assembling the linear core unit.

[0002]

2. Description of the Related Art In a conventional linear motor, as a magnetic field generation source of a mover, which is a movable portion of the linear motor, a coil is wound around each tooth pole of a linear core having a plurality of tooth poles via an insulator. However, the winding work is complicated and it is difficult to automate the winding work. For this reason, a winding coil is created by winding the winding into a coil on a bobbin made of an insulator in advance, and this winding coil is inserted into the tooth poles of the linear core. A linear core unit has been proposed in which wires are connected in order.

In this linear core unit, since the winding work can be performed by winding the winding on a bobbin having a simple shape, the winding work is facilitated and the winding work can be automated. It was

[0004]

However, in order to form a linear core unit by combining the formed winding coil and the linear core, it is necessary to connect the windings wound between the winding coils.

FIG. 8 is a schematic plan view of a linear core unit in which a winding coil and a linear core are combined, and the linear core unit 90 is used for a mover of a linear motor. As shown in the figure, the linear core unit 90 is
Tooth poles 92a, 92 of the straight core 91 having a plurality of tooth poles
b, 92c, 92d, 92e, 92f, 92g, 92
h, 92i, 92j, 92k, 92l, winding coil 9
3a, 93b, 93c, 93d, 93e, 93f, 93
g, 93h, 93i, 93j, 93k, 93l are inserted, and the windings 94a, 94b of the respective winding coils are
94c, 94d, 94e, 94f, 94g, 94h, 9
4i, 94j, 94k, and 94l are 9 as shown in the figure.
It is connected in several places. Specifically, one end of the winding 94a and one end of the winding 94d are connected, the other end of the winding 94d and one end of the winding 94g are connected, and the other end of the winding 94g and one end of the winding 94j are connected. The winding coil 93a, the winding coil 93d, the winding coil 93g, and the winding coil 93j form a magnetic pole due to the current of the same pole (U pole). Similarly, the winding 94b, the winding 94e, and the winding 94
h and the winding 94k are connected to each other, and the winding coil 93
b, the winding coil 93e, the winding coil 93h, and the winding coil 93k form a magnetic pole due to the current of the V pole, and the winding 94
c, the winding 94f, the winding 94i, and the winding 94l are connected to each other, and the winding coil 93c, the winding coil 93f, the winding coil 93i, and the winding coil 93l form a magnetic pole due to the current of the W pole. . When the U-pole, V-pole, and W-pole currents are applied to the linear core unit configured as described above, a traveling magnetic field in either the left-right direction is generated depending on the phase of each current. It is formed.

There are various methods for connecting the windings, such as a method of using a printed circuit board having a pattern of points to be connected, a method of soldering the windings to each other, but the diameter of the windings is large, When it is necessary to pass a high output current to the winding, the winding is connected by soldering.

However, since the winding wire connection by soldering is performed by hand, when assembling a linear core unit or a linear motor using such an independent winding coil, the number of man-hours (person × hour) is required. There is a problem that the manufacturing cost increases as a result.

The present invention has been made in view of the above problems, and provides a winding coil unit, a linear core unit, a linear motor, and a linear core unit assembling method which can reduce the number of assembling steps and reduce the manufacturing cost. The purpose is to do.

[0009]

In order to achieve the object of the preceding paragraph, a winding coil unit according to claim 1 comprises a plurality of winding coils to be inserted into each tooth pole of a linear core having a plurality of tooth poles. In the winding coil unit, the plurality of winding coils have a plurality of insulating bobbins, and one winding having a required unwound length portion between the bobbins is all It is characterized by being continuously wound around a bobbin.

According to a second aspect of the present invention, in the linear core unit, at least two or more winding coil units of the first winding coil unit each have a plurality of tooth poles linearly arranged. A linear core unit that is inserted into the linear core unit, wherein the winding coils of any one of the winding coil units are inserted in a fixed order with respect to the tooth poles of the linear core, and The winding coils of the winding coil unit are inserted in the fixed order.

According to a third aspect of the present invention, there is provided a linear motor including a mover having the linear core unit according to the second aspect and a stator for generating a stationary magnetic field.

According to a fourth aspect of the present invention, there is provided a linear core unit assembling method, wherein at least two winding coils of the winding coil unit according to the first aspect are arranged in a linear core having a plurality of tooth poles linearly arranged. A linear core unit assembling method for inserting a linear core unit according to claim 2 into a tooth pole, wherein each winding coil of any one of the winding coil units is arranged in a fixed order in each tooth pole of the linear core. Insert into
Moreover, the linear core unit is assembled by repeating each of the other winding coils of the other winding coil unit in the predetermined order and sequentially inserting them into the other tooth poles.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a schematic perspective view for explaining the configuration of a winding coil unit according to an embodiment of the present invention. In the winding coil unit 10, one winding 11 is continuously wound. Composed by
It consists of winding coils 12a, 12b, 12c, 12d.

Next, the structure of each winding coil 12a, 12b, 12c, 12d will be described by taking the winding coil 12a as an example. The winding coil 12a is formed by winding the winding 11 in a coil shape on a bobbin 13a formed in a cylindrical shape having an opening in the center.

The bobbin 13a, as shown in FIG.
The winding portion 130 is formed in a rectangular tube shape so that a tooth pole of a linear core, which will be described later, can be inserted into the hollow portion 132, and the winding portion 130 is protruded in the outer peripheral direction at the upper and lower ends thereof. It is composed of the winding locking portion 131. Since the winding locking portion 131 is provided so as to project, the winding winding portion 130
The winding 11 wound around is sandwiched to prevent the winding winding 11 wound in a coil shape from being collapsed. Also, the bobbin 13a
Is made of an insulating synthetic resin, but may be made of other insulating material such as insulating paper or ceramic. The bobbin 13a is not limited to the above-mentioned shape as long as it has an insulating property and has a portion around which the winding 11 is wound and an opening into which the tooth pole of the linear core can be inserted. Not something.

The winding 11 is a wire made of a conductive metal material, and the outer peripheral surface of which is insulated and coated with, for example, an enamel coating. The winding 11 is a bobbin 13
a, 13b, 13c, 13d are continuously wound, and each bobbin 13a, 13b, 13c, 1
3d and the length of the bobbin 13a, 13
It is one wire having a length part which is not wound between b, 13c and 13d. More specifically, as shown in FIG. 1, after the winding coil 12a is wound around the bobbin 13a to form a winding coil 12a, a predetermined length of unwound portion is wound from the winding end portion to the bobbin 13b. The winding coil 12b is wound to form the winding coil 12b, and the winding end portion is wound around the bobbin 13c to form the winding coil 12c. The winding coil 12d is formed by winding the wire around the bobbin 13d, leaving a portion of the required length that is not wound.
In the winding 11, the required length of the non-wound portion is the length of each winding coil 12a, 12b, 12c, 12d.
Is set in consideration of the arrangement of each winding coil when the coil is inserted into the tooth pole of the linear core to be described later to form a linear core unit.

FIG. 3 is a winding coil 1 shown in FIG.
2a is a cross-sectional view showing the AA cross section of FIG. 2a, but as shown in the figure, the winding 11 has a winding winding portion 130 of the bobbin 13a,
It is aligned and laminated and wound. In addition, each bobbin 13
The work of winding the winding wire 11 around a, 13b, 13c, and 13d is performed not only by manual work but also by using an automatic winding device.

Thus, the winding coil unit 10 is
Winding coils 12a, 12 forming magnetic poles by one current
b, 12c, 12d, one winding 11 is a bobbin 13
a, 13b, 13c, and 13d are continuously wound to form an integrated body, and thus, when a linear core unit is assembled using the winding coil unit 10, each winding coil 12a, 12b, 12
The work of connecting the windings of c and 12d is unnecessary. The winding coil unit 10 is for a 3-pole linear motor using a linear core having 12 tooth poles.
When used for a straight core having 9 tooth poles, a winding coil unit is configured by using 3 winding coils, and when using a straight core having 6 tooth poles, 2 winding coils are used as one set. do it.

Next, a linear motor 50 using a linear core unit 40 in which the three sets of winding coil units 10, 20, 30 shown in FIGS. 4 to 7 are combined with a linear core 41 having 12 tooth poles. explain. Here, the winding coil unit 20 and the winding coil unit 30 have the same configuration as the winding coil unit 10.
Specifically, the winding coil unit 20 includes one winding 21.
Is composed of winding coils 22a, 22b, 22c, and 22d that are continuously wound.
The winding coil unit 30 includes winding coils 32a and 3a formed by continuously winding one winding 31.
2b, 32c, 32d.

As shown in FIGS. 4 and 5, the linear core 41 has a required number of thin metal plates 42 each including twelve tooth portions 420 and a connecting portion 421 connecting the tooth electrode portions 420. It is made by stacking. Further, the thin metal plate 42
Has a convex portion 422 formed by caulking at an appropriate position, and the convex portion 422 is fitted to the convex portion 423 of the metal thin plates 42 stacked above and below the metal thin plates 42 to position each other. It has been squeezed. Further, the laminated metal thin plates 42 are fixed to each other by an appropriate adhesive or welding, and the twelve tooth electrodes 410a, 410b, 410c, 410d,
410e, 410f, 410g, 410h, 410i,
The linear core 41 in which 410j, 410k, and 410l are linearly arranged is formed.

FIG. 6 shows three winding coil units 10,
It is a top view for demonstrating the structure of the linear core unit 40 which has 12 tooth poles which combined 20 and 30 with the linear core 41. In the linear core unit 40, the winding coils of any one of the winding coil units 10, 20, 30 are inserted in the tooth poles of the linear core 41 in a fixed order, and the like. The winding coils of the winding coil unit are also inserted into the other tooth poles of the linear core 41 in the above-described fixed order, so that the linear core unit 40 having a linear shape as a whole is formed.

More specifically, as shown in the drawing, the linear core unit 40 includes the winding coil 12 of the winding coil unit 10.
a is the tooth pole 410a of the linear core 41, and the winding coil 12b
Is the tooth pole 410d and the winding coil 12c is the tooth pole 410g.
Further, the winding coils 12d are inserted in the tooth poles 410j, respectively, and form a magnetic pole by the current of the same pole (U pole).
Further, the winding coil 22a of the winding coil unit 20 is inserted into the tooth pole 410b, the winding coil 22b is inserted into the tooth pole 410e, the winding coil 22c is inserted into the tooth pole 410h, and the winding coil 22d is inserted into the tooth pole 410k. Yes, it forms a magnetic pole with a current of the same pole (W pole). In the winding coil unit 30, the winding coil 32a is the tooth pole 410c, the winding coil 32b is the tooth pole 410f, and the winding coil 32c is the tooth pole 41.
At 0i, the winding coil 32d is inserted in the tooth pole 410l, and forms a magnetic pole by the current of the same pole (W pole).

One end of each winding 11, 21, 31 of each winding coil unit 10, 20, 30 is independent so as to be connected to a U-pole, V-pole, and W-pole power source, and the other end is one. It is connected to one. The other ends of the windings 11, 21, and 31 do not necessarily have to be connected.

Thus, the U pole and the V pole can be connected without the work of connecting the windings of the winding coil inserted in each tooth pole.
Of the three poles of the pole and the W pole, four winding coils of each winding coil unit 10, 20, 30 forming a magnetic pole by the current of the same pole are arranged for every three tooth poles of the straight core, four pieces are arranged. A straight core unit 40 having tooth poles of
Three-pole currents of the pole and W pole are applied to the winding coil units 10 and 2, respectively.
By energizing the windings 11, 21 and 31 of each of 0 and 30, depending on the phase of the current of each of the U pole, V pole and W pole, the linear core unit 40 can be moved to either the left or right direction. A traveling magnetic field is formed.

The work of assembling the linear core unit 40 constructed as described above is carried out not only by hand work but also by using an assembling machine or the like.
0 of the winding coil 12 of the winding coil unit 10
a, 12b, 12c, 12d in a certain order in the linear core 4
The winding coils 22a, 22b, 22c, 22d of the other winding coil units 20 and the winding coils 32a, 32b, 32c of the winding coil unit 30 are respectively inserted into the tooth poles 410a, 410d, 410g, 410j of the first winding coil unit 20. Three
2d in a fixed order and tooth poles 410b and 41d, respectively.
0e, 410h, 410k and tooth poles 410c, 410f,
The linear core unit 40 is assembled by a method of inserting the linear core unit 40 into the 410i and 410l. It should be noted that the fixed sequence of insertion is arbitrary as long as the linear core 41 and the winding coil units 10, 20, 30 inserted into the linear core 41 form a linear core unit 40. Can be done.

The winding coil units 10, 20, 3
The order in which each winding coil of 0 is inserted into each tooth pole of the linear core 41 is not limited to the one shown in the linear core unit 40 according to the present embodiment, and the winding coil unit to be combined is formed. Depending on the number of groups and the type of power supply used, for example, three-pole direct current or three-phase alternating current, etc., they can be inserted in various orders. Any order can be set as long as a traveling magnetic field is formed in the core unit. Further, it is possible to arbitrarily set that each winding coil is inserted upside down or left-right inverted.

FIG. 7 is a schematic plan view showing the structure of a linear motor 50 having a mover 51 having the linear core unit 40 as a magnetic field source and a stator 52 for generating a steady magnetic field. As shown in FIG.
A mover 51 in which the linear core unit 40 is sealed with synthetic resin 511 is provided at a fixed distance from the stator 52 that generates a steady magnetic field from the NS bipolar poles 522 that are linearly arranged above.

As a result, when electric currents of three poles of U pole, V pole and W pole are applied to the linear motor 50, that is, the linear core unit 40 in the mover 51, the linear core unit 40 is applied to the periphery of the mover 51. Since the traveling magnetic field is formed, it repels or is attracted to the stationary magnetic field generated by the stator 52, so that the mover 51 moves at a substantially constant distance from the stator 51. At this time, the traveling direction of the traveling magnetic field can be controlled by controlling the phases of the currents flowing through the U pole, the V pole, and the W pole, and the mover 51 can reciprocate.

The linear motor 5 according to the present embodiment
Although 0 is a three-pole linear motor of U pole, V pole, and W pole, the present invention is not limited to this, and a linear motor having two poles or four poles or more, or an induction type or other type. Naturally, the same effect as that of the present invention can be obtained also in the linear motor.

[0030]

According to the winding coil unit of the first aspect,
A winding coil unit comprising a plurality of winding coils to be inserted into each tooth pole of a linear core having a plurality of tooth poles, wherein the plurality of winding coils are provided on a plurality of bobbins having insulation properties. This split-winding coil is used because it is characterized in that one bobbin, which has a required unwound length between bobbins, is continuously wound on all bobbins. Thus, when assembling the linear core unit or the linear motor, the work of connecting the windings wound around the winding coils is not required. As a result, the number of assembling steps when assembling the linear core unit or the linear motor using the winding coil unit can be reduced, and the manufacturing cost can be reduced.

According to a second aspect of the present invention, in the linear core unit, at least two or more winding coil units of the first winding coil unit each have a plurality of tooth poles linearly arranged. A linear core unit that is inserted into the linear core unit, wherein the winding coils of any one of the winding coil units are inserted in a fixed order with respect to the tooth poles of the linear core, and Since each winding coil of the winding coil unit is inserted in the fixed order, the step of connecting the windings of each winding coil is required in the assembly process of the linear core unit. Therefore, the man-hour required for this step can be reduced, and the manufacturing cost can be reduced.

A linear motor according to claim 3 is the linear motor according to claim 2.
Since it is characterized by including a mover including the linear core unit described above and a stator that generates a stationary magnetic field,
In the process of assembling the linear motor, the step of connecting the winding wound around the winding coil of the linear core unit used as the magnetic field generation source of the mover is not required, so the man-hour required for this step is reduced and the linear motor It is possible to reduce the manufacturing cost.

According to a fourth aspect of the present invention, there is provided a linear core unit assembling method, wherein at least two winding coils of the winding coil unit according to the first aspect are arranged in a linear core having a plurality of tooth poles linearly arranged. A linear core unit assembling method for inserting a linear core unit according to claim 2 into a tooth pole, wherein each winding coil of any one of the winding coil units is arranged in a fixed order in each tooth pole of the linear core. Insert into
And, since each winding coil of the other winding coil unit is characterized by assembling the linear core unit by repeating the winding coil in the fixed order and sequentially inserting it into the other tooth poles, Since the assembly method does not require the step of connecting the windings of each winding coil when assembling the linear motor, the man-hour required for this step can be reduced, and the linear core unit or the linear motor using the linear core unit can be reduced. This is an assembly method that can reduce manufacturing costs and is effective.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a split winding unit according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a bobbin.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a view showing a thin metal plate.

FIG. 5 is a perspective view showing a linear core.

FIG. 6 is a plan view showing the configuration of a linear core unit.

FIG. 7 is a schematic plan view of a linear motor.

FIG. 8 is a plan view showing a configuration of a conventional linear core.

[Explanation of symbols]

10, 20, 30 Winding coil units 11, 21, 31 Windings 12a, 12b, 12c, 12d, 22a, 22b, 2
2c, 22d, 32a, 32b, 32c, 32d Winding coils 13a, 13b, 13c, 13d Bobbin 40 Linear core unit 41 Linear cores 410a, 410b, 410c, 410d, 410e,
410f, 410g, 410h, 410i, 410j,
410k, 410l tooth pole 50 linear motor 51 mover 52 stator

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5H603 AA01 BB15 CA02 CA10 CB01                       CB11 CB16 CB26 CC11 CC17                       FA16                 5H604 AA08 BB10 BB11 CC02 CC05                       CC14 PB02 PC03 QB14 QB16                 5H641 BB06 GG03 GG04 GG06 HH02                       HH11 JA07 JA11

Claims (4)

[Claims] 1. A winding coil unit comprising a plurality of winding coils to be inserted into each tooth pole of a linear core having a plurality of tooth poles, wherein the plurality of winding coils have an insulating property. Multiple bobbins with required unwound length between each bobbin
A winding coil unit, wherein one winding is continuously wound on all bobbins. 2. A linear core unit in which each winding coil of at least two winding coil units according to claim 1 is inserted into each tooth pole of a linear core having a plurality of linearly arranged tooth poles. The winding coils of any one of the winding coil units are inserted in a certain order with respect to the tooth poles of the linear core, and each winding of the other winding coil unit is A linear core unit, wherein the wire coils are inserted in the predetermined order. 3. A linear motor comprising a mover having the linear core unit according to claim 2 and a stator for generating a stationary magnetic field. 4. At least two winding coils of the winding coil unit according to claim 1 are inserted into each tooth pole of a linear core having a plurality of tooth poles arranged in a straight line.
A linear core unit assembling method for assembling a linear core unit according to claim 1, wherein each winding coil of any one of the winding coil units is inserted into each tooth pole of the linear core in a fixed order, and A linear core unit assembling method, characterized in that a linear core unit is assembled by repeating each winding coil of the winding coil unit in the above-mentioned fixed order and inserting it into other tooth poles in order.