JP3237232B2 - Linear motor type door opening and closing device - Google Patents

Abstract

PURPOSE:To simplify the configuration, embody in an efficient structure, and reduce the costs by installing a moving piece consisting of a plurality of permanent magnets on a stator consisting of a rod-shaped core and a plurality of three-phase winding sets. CONSTITUTION:The stator 2 of a linear motor is fixed to an aluminum sash 1 made of a drawn material of aluminum. On this stator 2, the moving piece 3 of linear motor is arranged which is coupled with a door 19, which is opened and shut by a thrust force generated between the stator 2 and moving piece 3. The stator 2 is formed from a rod-shaped core, a plurality of three-phase winding sets, and a pipe made of a non-magnetic material, while the moving piece 3 is formed from a plurality of permanent magnets. A sensor 5 is furnished to sense movement of the door 19, and the output of sensor 5 is fed to a controller 4, which controls movement of the door 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor type door opening / closing device, and more particularly, to a linear motor stator fixed to a non-moving body such as an aluminum sash made of an aluminum drawing material or the like. The present invention also relates to a linear motor type door opening / closing device in which a stator of a linear motor connected to a door is arranged on the stator, and the door is opened and closed by a thrust generated between the stator and the movable element.

[0002]

2. Description of the Related Art Generally, in a linear motor type door opening / closing device, a driving unit for opening / closing the door includes a stator, a movable element connected to the door, a sensor for detecting a position of the door, and a detection signal of the sensor. And a controller for controlling the movement of the door. Among them, the one having the structure shown in FIG. 5 is conventionally known. A rail 24 is disposed above the door 19, and the square grooves 24 a and 24 b of the rail 24
Two sets of permanent magnet rows 26 each having one magnetic pole surface abutting on the yoke 25 while changing the magnetism are fitted facing each other,
The stator 2 is formed. This opposed permanent magnet row 26
The power unit of the drive unit is formed by a configuration in which the movable element 3 constituted by the winding coil 27 moves between the stator 2 and the movable element 3 by a propulsive force acting between the stator 2 and the movable element 3. The control unit of the drive unit that controls the power unit includes a sensor 5 that detects the position of the door, and a controller 4 that is installed at an end of the rail 24 and controls the movement of the mover 3 based on a detection signal of the sensor 5. . Hereinafter, the conventional structures of the mover and the stator will be described in detail.

(1) Conventional structure of mover The mover 3 in the overall structure as described above includes U, V, W
It is composed of three-phase winding coils. The mover 3 has a structure passing between the permanent magnet rows 26 facing each other.
Since it is desired to make the space between the permanent magnet rows 26 narrow from the viewpoint of magnetic efficiency, the winding coil 27 uses a thin air-core coil and is arranged in three phases in the moving direction and in one or two stages. It is positioned in a state, and after wiring, it is fixed by a method such as resin casting.

(2) Conventional Structure of Stator The stator 2 has a yoke 25 and a row of permanent magnets 26 in the overall structure as described above. The winding coil 2 of the mover 3 is
7, the permanent magnets 26A are attached in the longitudinal direction of the yoke alternately in the longitudinal direction of the yoke while changing the polarities on the same side, and the permanent magnets 26 in the opposing permanent magnet row 26 have N poles. Are fixed to the rail 24 by being pressed into square grooves 24a and 24b formed in the rail 24.

(3) Others The sensor 5 constituting the control section of the drive section is usually integrated with the mover 3 so as to move in conjunction with the mover 3. In addition, when the door 19 is attached to the mover 3, the mounting adjustment is performed by using bolts used for connecting the mover 3 and the door 19,
The removal is performed by removing the nut and changing the number or thickness of the liners sandwiched between the mover 3 and the door 19.

[0006]

In the conventional linear motor driving device, the stator side is a permanent magnet and the mover side is a coil. Further, since the permanent magnets are arranged in close contact with each other by the stroke of the mover as described above, when a large propulsion force is required, the thickness of the mover does not decrease below a certain limit due to the coil formation. Therefore, a strong permanent magnet must be used, and the driving unit becomes expensive. In addition, since the coil moves, the conductor connecting the coil and the controller operates in conjunction with the mover, and a space must be secured for the conductor to bend. There are two major problems described above. Note that these problems can be solved even when the stator side is a coil and the mover side is a permanent magnet, as shown in Japanese Patent Application Laid-Open No. 3-221687 by the same applicant. Exists.

(1) Problems with the mover The coil used for the linear motor is one of the two end lines coming out of the coils for three phases, one of which is on the neutral point side.
It is configured to be connected to each other, and the remaining one is output from the power supply via the controller. Therefore,
Wiring is complicated in a narrow space. In addition, since the mover has a structure that passes through the narrow gap, it is necessary to assemble wiring with high accuracy so that the wiring does not contact the facing direction of the permanent magnet forming the gap, the vertical direction of the gap, and the like.

(2) Problems of the stator The stator uses many permanent magnets, and the magnetic pole surface does not directly face the flowing air outside, but iron powder or the like in the air is used for the stator. There is a problem in that the mover cannot be smoothly operated when it is drawn to the opposing surface and accumulated. (3) Other issues The sensor uses a Hall element, etc., but the detection performance is degraded if deposits on the opposing surface of the stator accumulate as described in (2) above. There is a point.

Further, when the door is attached to the mover and the drive unit is assembled, it is difficult to remove bolts and nuts fastening the door and the mover, and a liner for adjusting the mounting is attached later. There is a problem that is complicated. An object of the present invention is to provide a structure of a drive unit in a linear motor type door opening / closing device that solves the above-mentioned respective problems without complicating the structure.

[0010]

In order to solve the above-mentioned problems, according to the present invention, a stator of a linear motor is fixed to a non-moving body such as an aluminum sash made of an aluminum drawing material and the like. In a linear motor type door opening / closing device that arranges a mover of a linear motor connected to a door to a child and opens and closes the door by a thrust generated between the stator and the mover, the stator is A rod-shaped core placed in the opening and closing direction of the door, and a plurality of rods inserted into the rod- shaped core
Bobbins, a plurality of sets of three-phase windings respectively wound around the plurality of bobbins and repeating winding in the longitudinal direction of the iron core, and the plurality of sets of three-phase windings were wound. constituted by a pipe made of a non-magnetic material core is inserted, the three-phase
The winding in the longitudinal phase order around the winding rod
Each individual bobbin wound on an individual bobbin is rod-shaped
This is performed by sequentially fitting the mover in the iron core, and the mover is arranged in the longitudinal direction on both sides of the stator so that the N pole and the S pole alternately face the stator. Are configured using a plurality of permanent magnets disposed so as to have the same polarity, and a detection unit is fixed to a non-moving body to detect the position of the door, and a sensor fixed to the non-moving body and detected by the sensor And a controller that controls the movement of the door by a signal.

In the stator having the above-described configuration, the bobbin around which each phase winding is wound has three notches formed in the flanges at both ends in the axial direction, and one feeder line is provided for each phase winding. It is more preferable to be fitted in the groove.

[0012] Further, a mover having a plurality of permanent magnets arranged so that the N pole and the S pole face the stator alternately in the longitudinal direction on both sides of the stator is provided. A groove-shaped holding plate formed of metal and having a plurality of holes into which the permanent magnets are fitted in both side walls in the longitudinal direction, the groove-shaped holding plate having a U-shaped cross section; Magnets that are integrated with the holding plate and magnetically couple each permanent magnet by abutting on one pole surface of each permanent magnet fitted into the hole in the side wall of the groove-shaped holding plate. It is preferable to use a yoke made of a plate.

In this case, both ends of each yoke on the outer side of the groove-shaped holding plate of the mover in the longitudinal direction are deformed, and the rollers are supported on the both ends such that the axial direction is perpendicular to the bottom surface of the groove-shaped holding plate. At the same time, the distance between the rollers facing each other at the same longitudinal end of both yokes is substantially equal to the width of the stator pipe, and the rollers serve as guide members for moving the mover, and the distance between the opposing permanent magnet rows. It is more preferable that the center of the armature be a positioning member for the mover that matches the center axis of the stator pipe.

Further, in the mover having the above-mentioned structure, all the permanent magnets fitted to one of the side walls are surrounded inside both side walls of the groove-shaped holding plate, and the gap between the side surface of the stator pipe and the side wall is filled. It is more preferable to arrange a sponge for producing a bend so as to prevent the adhesion of iron powder or dust to the magnetic pole surface of the permanent magnet. Also, a sensor in which the detection unit is fixed to the non-moving body and detects the position of the door is formed in a rotary type in which the movable unit of the detection unit is a rotating body, and the rotating body is fixed to a drive shaft of the rotating body. It is extremely preferable that the pulley and the pulley whose center axis is fixed at another position be rotated and driven through a wire connected to the mover.

The connection between the mover and the door is provided with a suspension shaft for suspending the door, and a bolt hole is formed at a fixed distance from the suspension shaft in the direction of movement of the door, and the connection is rigidly connected to the mover. A door, having a hole inserted through the suspension shaft and a bolt hole formed at the same position as the bolt hole of the connecting plate, and being rigidly connected to the door, It is very preferable that the inclination of the bolt holes be adjusted by the relative positions of the two bolt holes.

[0016]

As described above, in the linear motor type door opening / closing device, the stator is provided with the rod-shaped core placed in the door opening / closing direction, the core wound around the rod-shaped core in the longitudinal direction of the core in sequence. A plurality of sets of three-phase windings that repeat winding in the longitudinal direction in the longitudinal direction, and a pipe made of a non-magnetic material into which an iron core around which the plurality of sets of three-phase windings are inserted is configured, The mover is moved in the longitudinal direction on both sides of the stator and N
The poles and the south poles are arranged so as to face the stator alternately, and a plurality of permanent magnets are arranged so that the facing magnetic poles on both sides of the stator have the same polarity. The structure of the armature is greatly simplified, and the number of permanent magnets can be easily changed according to the required propulsion force, and the number of coils can be easily changed according to the required stroke. A good structure can be obtained. In addition, by fixing the detection part of the sensor that detects the position of the door to a non-moving body such as an aluminum sash, and fixing the controller that controls the movement of the door to the non-moving body based on the detection signal of the sensor, the sensor and the controller are fixed. Since the wiring between the armature and the door is stationary during the movement of the door, there is no need for a space around the mover to bend the wiring without contacting the peripheral members, and the stator and the mover are the main members. The power unit of the driving unit can be made compact.

In the basic structure of the stator, each phase winding is wound around an individual bobbin, and these are sequentially fitted to a rod-shaped core, and this is inserted into a pipe made of a non-magnetic material such as an aluminum pipe. By doing so, the flanges at both ends of the bobbin can be brought into close contact with the peripheral surface of the rod-shaped core and the inner wall surface of the pipe, so that the center axis of the core, the center axis of the bobbin, and the center axis of the pipe are automatically adjusted. And the positioning when the stator is positioned at the center of the opposing permanent magnet row of the mover at the opposing interval becomes easy.

Further, three notch grooves are formed in the flanges at both ends in the axial direction of the bobbin around which the phase windings are wound, respectively, so that the power supply lines to the phase windings are fitted into the respective grooves. Then, the wiring of the power supply line is performed tidy without being entangled between the phases, and the bobbin can be easily inserted into the nonmagnetic pipe. In addition, a mover having a plurality of permanent magnets arranged in such a manner that the N pole and the S pole alternately face the stator in the longitudinal direction on both sides of the stator is provided. A groove-shaped holding plate having a plurality of holes into which the permanent magnets are fitted in the wall, the U-shaped cross-section being formed in the longitudinal direction; and a groove-shaped holding plate located outside both side walls of the groove-shaped holding plate. The permanent magnets are magnetically coupled by contacting one magnetic pole surface of each permanent magnet fitted into the hole in the side wall of the groove-shaped holding plate,
If a groove-shaped holding plate and a yoke made of a magnetic plate having substantially the same length are constituted, a groove-shaped holding plate having a U-shaped cross section is made of, for example, an aluminum drawn material, so that both sides of the U-shape are formed. A groove-shaped holding plate can be formed with high dimensional accuracy between the outer surfaces of the walls.
The opposing interval of the permanent magnet row formed by bringing one magnetic pole surface of each permanent magnet into contact with the yoke can be formed with high accuracy, and the variation in the clearance between the stator and the nonmagnetic pipe can be kept small. Thereby, the clearance can be made as small as possible, and the thrust acting between the stator and the mover can be increased to the maximum possible.

Further, both ends in the longitudinal direction of each yoke outside the side wall of the groove-shaped holding plate of the mover are deformed, and the rollers are supported on the both ends such that the axial direction is perpendicular to the bottom surface of the groove-shaped holding plate. Along with the distance between the rollers facing each other at the same longitudinal end of both yokes is almost equal to the width of the stator pipe, and the rollers are used as guide members when moving the mover,
If the center of the interval between the opposing permanent magnet rows is made to be the positioning member of the mover that matches the center axis of the stator pipe, it acts between the rod-shaped core of the stator and each permanent magnet row of the mover. Assembling under a strong suction force becomes easy, and the support of the roller which fulfills this role is performed only by deformation of both ends in the longitudinal direction of the yoke, so that the mover structure is not complicated and the cost is not increased. This effect can be obtained.

In addition, a sponge is provided inside each of the side walls of the groove-shaped holding plate so as to surround all the permanent magnets fitted into one of the side walls and to fill a gap between the side surface of the stator pipe and the side wall and to make a bend. By preventing iron powder or dust from adhering to the permanent magnet pole surface, the stator,
Prevents the thrust between the movers from changing over time, and even if iron powder or dust enters, it can be swept away, so that the door is always opened and closed with the magnetic pole surface cleanness updated. Driving can be performed.

Further, a door position detection sensor in which the detection section is fixed to a non-movable body is formed in a rotary type having a movable section of the detection section as a rotary body, and the rotary body is fixed to a drive shaft of the rotary body. When the wire is wound over a pulley and a pulley whose center axis is fixed at a different position and is rotated in the middle through a wire connected to the mover, the wire is formed into a loop shape wound over the two pulleys. Since no change is made, no space is required for bending unlike the conventional wiring between the sensor and the controller, and the device can be compactly assembled.

The connection between the mover and the door includes a suspension shaft for suspending the door, and a bolt hole is formed at a fixed distance from the suspension shaft in the direction of movement of the door, and the connection is rigidly connected to the mover. A door, having a hole inserted through the suspension shaft and a bolt hole formed at the same position as the bolt hole of the connecting plate, and being rigidly connected to the door, If the inclination of the bolts is adjusted by the relative position of the two bolt holes, this adjustment is performed without using a liner, and since the bolts are pulled out and inserted in the horizontal direction, it is easy to loosen and tighten the bolts, and the door Can be easily adjusted. In addition, the door can be easily removed even when the door is adjusted in the vertical direction, so that the door installation adjustment can be easily performed.

[0023]

1 to 4 show an embodiment of the present invention. FIG. 1 shows the overall structure of the present invention. As shown in the figure, the apparatus is composed of an aluminum sash frame 1, a stator 2, a movable element 3, a controller 4, a sensor 5, a door connecting part 6 of a door car, and a door 7-7. It is composed of elements.

FIG. 2 shows a detailed structure of the stator 2. The stator 2 includes a plurality of winding coils of each phase of U, V, and W, connected in parallel by a feeder to the winding coils, and a winding coil continuum 7, 8, 9 and an iron core 10, and Non-magnetic metal pipe 1
1. Each of the winding coil continuities 7, 8, 9 is in a state in which a plurality of coils 12 are connected. Between the connecting wires between the two coils 12, for example, for the U phase, V Phase, W phase, etc., so that other two-phase coils can be inserted, and finally, all coils are U, V, W, U, V, W.
・ ・ Repeats the order of the phases and forms a structure that is in close contact and continues. At that time, notches 12d, 12e and 12f for leading the coil or connecting wires are provided in the flanges 12b and 12c of the bobbin 12a so that the three-phase connecting wires do not become entangled, so that the windings can be assembled neatly. To be able to The core 10 passes through the core of these windings,
The skewered winding is housed in a pipe 11 and attached to an aluminum sash frame 1 (FIG. 1).

FIG. 3 shows a detailed structure of the mover 3. The base of the mover 3 is a yoke 13 and a permanent magnet 14 made of an iron plate made of a magnetic material. Since the yokes 13 and the permanent magnets 14 move on both sides as viewed from the cross section of the stator 2 (FIG. 2), the structure is such that the magnetic pole surfaces of the permanent magnets 14 do not contact both sides. 14. Since the two sets of the yoke 13 are used with the stator 2 interposed therebetween, the structure must be such that either of the sets does not exert too much attractive force with the stator core 10 (FIG. 2). Permanent magnet 14
In order to prevent dust such as iron sand in the air from adhering to the magnetic pole surface, it is necessary to devise three points. First,
In order to prevent the side surfaces of the stator 2 from contacting the magnetic pole surfaces of the permanent magnets 14, the permanent magnets 14 are fixed so that a certain gap is formed between the side surfaces of the stator 2 and the magnetic pole surfaces of the permanent magnets 14.
For this purpose, a non-magnetic metal plate is bent into a U shape as shown in the figure, or a square grooved drawn material made of non-magnetic metal is used for the spacing, as shown in the figure. Are obtained, and permanent magnets 1 are attached to both side walls of the U-shaped metal plate or the rectangular grooved drawn material.
A U-shaped or groove-shaped holding plate 15 having a hole 15a into which the hole 4 is inserted is sandwiched between the yokes 13. However, with this alone, one of the pair of permanent magnets attracts the stator before fixing, so that the rollers 16 can be attached to both ends in the longitudinal direction of the yoke 13 so as to balance the gaps on both sides of the stator 2. Both ends of the yoke 13 are bent so that the pins 17 for inserting the rollers can be inserted. As a result, the relative position of the mover 3 and the stator 2 in the direction sandwiched by the rollers 16 is determined, and the attractive force between the iron core 10 and the permanent magnet 14 causes a direction perpendicular to the attractive force, that is, the holding plate 15. The relative position in the direction perpendicular to the bottom surface is also determined. In this case, the stator 2 is opened from the open portion 15b on the holding plate 15.
And is automatically centered and positioned. As a measure against dust, a sponge 18 as shown in the figure is attached so as to surround all the permanent magnets. The sponge has such a thickness as to fill the clearance between the magnetic pole surface of the permanent magnet 14 formed by the roller 16 and the side surface of the stator 2. We prevent invasion of garbage.

The power unit of the driving unit composed of the stator 2 and the mover 3, the sensor 5 which outputs a pulse signal constituting the control unit of the driving unit, and the operation of the driving unit by receiving the pulse signal of the sensor 5 Is mounted on the aluminum sash frame 1 serving as the entire base to form a drive device. The operation of the sensor 5 is performed by rotating a pulley fixed to a drive shaft of a rotating body constituting a movable part of the detection unit by a wire 20 made of stainless steel or the like connected to the movable element 3, and outputs a pulse signal.

In order to open and close the door 19 with the above-described drive device, a portion where the door wheel 28 is placed in the aluminum sash frame 1 is taken as shown in FIG. 4A, and the door wheel 28 is connected to the two metal connecting plates 21. And put on the a portion of the aluminum sash frame 1, and further attach a suspension shaft 22 to the center of the connection plate 21 with a screw or the like, and attach the screw holes 2 at equal intervals around the suspension shaft 22.
1a and 21b are arranged at two places, and 3 corresponding to the suspension shaft 22 and the screw holes 21a and 21b attached to the door 19 are provided.
One of the holes 19a, 19b, through the suspension shaft 22 in the hole 19 b of the center of 19c, 19a, mounting the door 19 by the 19c of the hole screwing. If it is necessary to adjust the inclination of the door due to a delicate deviation in dimensions when attaching the door 19, the door 19 is rotated around the suspension shaft 22 to tighten one screw, and then the other side is rotated. The adjustment can be performed by tightening the.

[0028]

According to the present invention, since the linear motor type door opening / closing device is constructed as described above, the following effects can be obtained. According to the device of the first aspect, the structure of the stator is remarkably simplified, the assembling is facilitated, and the cost of the stator is reduced as compared with a conventional stator using a coil. In addition, it is possible to easily change the number of permanent magnets according to the required propulsion force, and to change the number of coils according to the required stroke, thereby obtaining a cost-effective structure. it can. Also, since both the sensor and controller are fixed to a non-moving body,
A space for flexing the wiring between the sensor and the controller to the peripheral member in a non-contact manner as in the related art is not required, and the device can be formed more compact.

Further , since each phase winding is wound on a bobbin, the bobbin can be brought into close contact with the peripheral surface of the rod-shaped iron core and the inner wall surface of the non-magnetic metal pipe. The respective center axes are automatically matched, and the positioning when the stator is positioned at the center position of the opposing permanent magnet row of the mover at the opposing interval becomes easy, so that the number of assembling steps can be slightly reduced.

According to the second aspect of the present invention, since the power supply lines to the respective phase windings are fitted into the respective grooves, the wiring of the power supply lines can be carried out without being entangled between the phases, and the bobbin can be connected to the non-magnetic pipe. Insertion becomes easy and the number of assembly steps is reduced. In the device according to the third aspect , the facing interval between the permanent magnet rows constituting the mover can be formed with high dimensional accuracy, and the variation in the clearance between the magnetic pole surface of the permanent magnet and the non-magnetic pipe of the stator can be kept small. it can. As a result, the clearance can be made as small as possible, the thrust acting between the stator and the mover can be increased to the maximum possible, and the target capability of the device can be fully utilized.

Further, the assembly under a strong attractive force acting between the bar-shaped iron core of the stator and each row of permanent magnets of the mover is facilitated, and the roller supporting this function is supported by a roller.
Since this operation is performed only by deforming both ends of the yoke, this effect can be obtained without complicating the mover structure and increasing the cost. In the device according to the fifth aspect , the loop shape of the wire passed over the pulley is invariable regardless of whether the device is operating or stopped. Compactness becomes possible.

In the apparatus according to the sixth aspect, the bolts used for connecting the connecting plate rigidly connected to the mover and the door fitting are inserted and removed horizontally, so that the bolts are loosened and tightened when the inclination of the door is adjusted. In addition, the door can be easily removed when the door is adjusted in the up-down direction, and the assembling and holding properties of the device are improved.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the configuration of a linear motor type door opening and closing device according to the present invention, together with the structure or shape of each component, (a) is a side view of the main part, (b) is a front view of the main part,
(C) is a side view of each component, and (d) is a front view thereof.

FIG. 2 is a view showing an embodiment of a stator structure in a linear motor type door opening and closing apparatus according to the present invention, together with a structure of a bobbin around which a winding constituting the stator is wound, and (a) of FIG. FIG. 2B is a perspective view of the structure, and FIG. 2B is an exploded perspective view of members constituting the stator.

FIG. 3 is a view showing an embodiment of a mover structure in a linear motor type door opening and closing apparatus according to the present invention together with structures of respective constituent members, and FIG. 3 (a) is a perspective view showing a bent portion at both ends of a yoke; (B) is an exploded perspective view of each member constituting the mover.

FIGS. 4A and 4B are views showing a main part of an embodiment of a coupling structure between a mover and a door in the linear motor type door opening and closing apparatus according to the present invention, wherein FIG. 4A is a side view, FIG. c) is an exploded view of (b)

FIG. 5 is a view showing the entire configuration of a conventional linear motor type door opening and closing device together with the configuration or structure of the main part of the device, and FIG.
Is a perspective view of the entire structure, (b) is a perspective view of the drive unit, (c) is a perspective view of the yoke part, and (d) is a side view of the rail part.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Aluminum sash frame (aluminum sash, non-moving body) 2 Stator 3 Mover 4 Controller 5 Sensor 10 Iron core (bar-shaped iron core) 11 Pipe 12 Coil 12a Bobbin 12b Flange 12c Flange 12d Notch groove 12e Notch groove 12f Notch groove 13 Yoke 14 Permanent Magnet 15 Holding Plate 15a Hole 16 Roller 17 Pin 18 Sponge 19 Door 20 Wire 21 Connecting Plate 21a Screw Hole 21b Screw Hole 22 Suspended Shaft 23 Drive 24 Rail 25 Yoke 26 Permanent Magnet 27 Coil

Claims (6)

(57) [Claims] 1. A linear motor stator is fixed to a non-moving body such as an aluminum sash made of an aluminum drawing material or the like, and a linear motor mover connected to a door is arranged on the stator. In a linear motor type door opening / closing device in which a door is opened / closed by a thrust generated between a child and a mover, a stator is fitted into a rod-shaped core placed in the door opening / closing direction and the rod- shaped core. Multiple bobbins
And a plurality of sets of three-phase windings respectively wound around the plurality of bobbins and repeating winding in the longitudinal direction of the iron core, and an iron core on which the plurality of sets of three-phase windings are wound is inserted. Ri Do and a pipe made of a non-magnetic material is rod-like of the three-phase windings
The winding in the longitudinal phase sequence around the iron core consists of individual windings for each phase.
Individual bobbins wound on another bobbin are arranged in order on a rod-shaped core.
And the mover is arranged so that the north pole and the south pole alternately face the stator in the longitudinal direction on both sides of the stator, and the facing magnetic poles on both sides of the stator have the same polarity. A plurality of permanent magnets arranged so that the sensor is fixed to the non-moving body and the sensor detects the position of the door. A linear motor type door opening / closing device, comprising: a controller for controlling movement. 2. A device of claim 1 wherein, bobbins of each phase winding is wound, each flange of the axially opposite end is formed with three notched groove of, for each phase winding A linear motor-type door opening / closing device, wherein a power supply line is fitted into one groove. 3. The mover according to claim 1, wherein a plurality of permanent magnets are arranged in a longitudinal direction on both sides of the stator and N poles and S poles alternately face the stator. A groove-shaped holding plate having a U-shaped cross section, wherein the plurality of permanent magnets, a plurality of holes made of a non-magnetic metal, and on each side wall of which the permanent magnets are fitted are formed in a line in the longitudinal direction; And is integrated with the groove-shaped holding plate located outside the both side walls of the permanent magnet and abuts against one magnetic pole surface of each permanent magnet fitted in the hole of the side wall of the groove-shaped holding plate to magnetically couple each permanent magnet. , Ri Do and a yoke consisting of substantially equal length of the magnetic plate and the groove-shaped holding plate, the groove of the movable element
The ends of each yoke on the outside of the side wall of the shape holding plate are deformed.
The axial direction at both ends is perpendicular to the bottom of the groove-shaped holding plate
Roller with both yaw click is supported, respectively, as
The distance between the rollers facing each other at the same end in the longitudinal direction is
Set the roller to approximately the same width as the
The inner member and the space between the opposing permanent magnet rows
Positioning of the mover so that the center coincides with the center axis of the stator pipe
A linear motor-type door opening and closing device characterized in that it is a member . 4. The apparatus of claim 1 wherein, the fixed
The north and south poles are alternately arranged on the stator in the longitudinal direction on both sides of the
The mover in which a plurality of permanent magnets are arranged so as to face each other,
A plurality of permanent magnets and nonmagnetic metal
Multiple holes into which permanent magnets are fitted are formed side by side in the longitudinal direction
-Shaped U-shaped grooved holding plate and both side walls of the grooved holding plate
Of the grooved holding plate integrated with the grooved holding plate
One pole face of each permanent magnet fitted into the hole in the side wall
A groove-shaped holding plate and almost
A yoke made of a magnetic plate having an equal length, and enclosing all the permanent magnets fitted into one of the side walls inside each of the side walls of the groove-shaped holding plate of the mover, and A linear motor type door opening / closing device, which is provided with a sponge that fills a gap and creates a flexure to prevent iron powder or dust from adhering to the surface of a permanent magnet pole. 5. The apparatus according to claim 1, wherein the sensor for detecting the position of the door, wherein the detection unit is fixed so as not to move,
The rotary unit is formed as a rotary unit with the movable unit of the detecting unit as a rotary unit, and the rotary unit is passed over a pulley fixed to a drive shaft of the rotary unit and a pulley with a central axis fixed at another position, and A linear motor type door opening / closing device, which is driven to rotate via a wire connected to a mover. 6. The apparatus according to claim 1, wherein the connection between the mover and the door includes a suspension shaft for suspending the door, and a bolt hole is formed at a fixed distance from the suspension shaft in the direction of movement of the door. And a connecting plate rigidly connected to the mover, a hole inserted by the suspension shaft, and a bolt hole formed at the same position as the bolt hole of the connecting plate. A linear motor type door opening / closing device, wherein the inclination of the door is adjusted by a relative position of both bolt holes.