JPS5838056B2 - Automatic opening/closing device for driven objects such as windows - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for opening and closing driven books such as doors and windows of automobiles and windows of buildings. Another object of the present invention is to provide an automatic opening/closing device for a driven book, which performs an opening/closing operation of a driven book in a linear motion.

The automatic opening/closing device for a driven book according to the present invention has one center of an elliptical disc made of magnetic material as the center of rotation, and S and N poles are alternately arranged around this center by magnetization in the thickness direction. A flat rotor consisting of a rotor shaped like an annular array of positioned magnets, and a stator arranged so that a magnetic field acts on the magnetized portion of the rotor, and the rotor is rotated by excitation. It has a motor, and is characterized in that a driven body that performs a linear movement due to the rotational movement of the disk is in contact with the outer peripheral end surface of an elliptical disk of the rotor,
This will be explained in detail below based on the illustrated embodiment.

1 and 2 show an embodiment of a flat rotor motor which constitutes the main structure or element in an automatic opening/closing device for a driven book according to the present invention, and 1 is an elliptical circle made of magnetic material. The rotor has a plate W, and 2 is a stator.

The disk W, which is the main structure or tree of the rotor 1, has two centers P1, P
2, on the other hand, for example, the center P1 serves as the rotation center, and the rotation axis A is attached.

Around this center P1, the S. ，
Magnets with alternating north poles, e.g. S1 to S
A magnet in which the S pole of No. 4 appears on one side of the disk W, and N1
An annular array is formed with magnets in which the N poles of ~N4 appear on the same plane.

On the other hand, the stator 2 has coils n, , n2 forming magnetic poles M1, M2, and the magnetic poles M1, M2 have an angle of θ+1 when the distribution angle of the magnets of the rotor 1 is θ. It is arranged so as to face the magnetized portion of the rotor 1.

Next, the operation of the above motor will be explained.

First, when coil n is excited with a current such that the S pole of rotor 1 is attracted to magnetic pole M1, M1 becomes N1 of rotor 1.
A repulsive force is generated between the S4 pole and an attractive force between the S4 pole and the elliptical disk W rotates by θ/2 in the counterclockwise direction (in the direction of the arrow) with the center P1 as the rotation center.

As a result, the magnetic pole M2 is located at the boundary between the N1 pole and the S0 pole.

In this state, when the coil n2 is excited with a current such that the N pole of the rotor 1 is attracted to the magnetic pole M2, the rotor 1 is attracted to the magnetic pole M2.
The N1 pole of is attracted, the S1 pole is repelled, and the disk W further moves θ
/2 Rotate counterclockwise.

If the current flowing through the coil nl5n2 is reversed, it will rotate in the opposite direction, that is, in a clockwise direction.

Figures 3a to 3d are for explaining the structure and operation when the driven shaft is an automobile power window.
is a frame, and G is a window glass, which is guided in the vertical direction by the frame F and supported by the outer peripheral end surface of the elliptical disk W of the rotor 1 of the motor.

FIG. 3a shows the closed state, and in this case, the elliptical disc W has its long axis directed in the Y direction.

To open a window, operate the motor to rotate the disc W clockwise or counterclockwise (the latter in the illustrated example), and the window glass G begins to open as shown in Figure 3b, and as shown in Figure 3C. As shown in , the opening degree is maximum when the long axis faces the X direction.

When closing the window, when the rotor, that is, the disk W, is rotated in the same direction, there is a slight vertical movement during 180°, and then the third
It begins to close as shown in Figure d, and completely closes at a position where the long axis of the disk W points in the Y direction (Figure 3a).

As described above, according to the present invention, an elliptical disk is formed from a magnetic material, and an annular array of magnets in which S and N poles are alternately located around the center of one of the disks by magnetization in the thickness direction. Because the rotor is shaped like
There is no risk of overloading even at the maximum stroke (closed position in the case of a window), and the door can be opened and closed by rotating in one direction, making control easier.

Moreover, the structure is also very simple.

[Brief explanation of drawings]

The drawings show an embodiment of the automatic opening/closing device for a driven body according to the present invention, and FIG. 1 shows the main structure of the flat motor, which is the main structure, and FIG. 2 shows the entire structure of the flat motor. The schematic structure of the book, Figures 3a to 3d, are explanatory diagrams of the operating state when the driven book is a power window of an automobile. 1...Rotor, 2...Stator, W...
...Elliptical disc, N1 to N4...N pole of magnet, S1 to S4...S of magnet
Pole, P1...Center, M1M2...Stator magnetic pole, n1, n2...Coil, F
...Frame, G...Window glass.

Claims (1)

[Claims] 1 One center of an elliptical disc made of magnetic material is the center of rotation, and around this center S, S,
It consists of a rotor in the form of an annular array of magnets with alternating N poles, and a stator arranged so that a magnetic field acts on the magnetized portion of the rotor, and the rotor is rotated by excitation. A window or the like having a flat rotor motor, characterized in that a driven shaft that performs a linear motion due to the rotational movement of the disc is in contact with the outer peripheral end surface of an elliptical disc of the rotor. Automatic opening/closing device for driven objects.