JPH054261Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a device for magnetically floating an object, and more specifically, it relates to a device for suspending and floating an object using magnetic attraction force. This invention relates to a magnetic levitation device for forming objects.

[Conventional technology]

Conventionally, this kind of interior decoration or educational toy that uses magnetism to make objects float has been produced by placing a ring-shaped support magnet on a fixed stand as shown in FIG.
A floating ball formed into a hollow sphere made of plastic material is floated inside the support magnet RO by the magnetic repulsion between the support magnet RO and a ring-shaped floating magnet 2 fitted laterally inside the floating ball. something is known.

[The problem that the idea attempts to solve]

The interior decoration products using magnets of this kind described in the conventional technology have a structure in which the floating object is floated by the magnetic repulsion between the magnet supported from below and the upper magnet, so the floating object is placed at a high position from the support base. Moreover, since it uses a ring-shaped magnet, it is not only bulky but also has a wide magnetic field range, making it difficult to make small movements. The present invention was developed in view of these problems with the conventional technology, and its purpose is to utilize the different polar attraction force of the magnet to move a floating object to a high position far away from the platform below. Magnetic floating of objects that can be floated and formed into smart shapes, and the floating objects can be easily moved to form upholstery or intellectual toys that double the fun. The aim is to provide equipment.

[Means to solve the problem]

In order to achieve the above object, the magnetic floating device for an object in the present invention has a suspension electromagnet installed at a high position at one end of the support, a suspension electromagnet at a lower position, and an upwardly facing position at the center of the upper surface of the suspension electromagnet. Attach a small-diameter core holding rod vertically to the bottom surface. Floating magnets, each with a floating object attached to it, are attached to the core at the top and bottom positions in the direction of the suspension electromagnet's polarity and attraction polarity (N and S). They are provided facing each other with a holding rod interposed therebetween.

Furthermore, a following magnet is attached to the tip of a hanging rod hanging from the floating object, and the following magnet is attracted to the rotating magnet that is attached to the rotating shaft and rotates in the lower base, so that the floating object rotates together. You can also do it like this.

In addition, if a landing magnet is attached to the bottom side of the floating object, and a positioning electromagnet is provided in the base that attracts the landing magnet, and 0N and 0FF are performed alternately with the above-mentioned suspension electromagnet on the upper side, the floating object can be raised and lowered.

In addition, a light emitting element such as a photodiode and a light receiving element are placed on the left and right pillars at a low position within the magnetic field range where the attraction force between the floating magnet and the suspension electromagnet acts and where the core holding rod does not come into contact with the suspension electromagnet. A phototransistor is attached and a converter and a driver transistor are connected to form a photosensor circuit, and the photosensor circuit and a suspension electromagnet are connected to determine the height position at which a floating object attracts and approaches the suspension electromagnet. Control.

[Effect]

The hanging electromagnet installed at a high position and the floating magnet at the lower position with different polarity directions have mutual attraction, and the floating magnet is attracted to the hanging electromagnet at a high position, but the floating magnet When the tip of the core holding rod vertically placed at the center of the upper surface comes into contact with the center of the lower surface of the suspension electromagnet due to the centripetal attraction force of the suspension electromagnet, it cannot come any closer and the floating magnet holds the floating object at this position. It is hung below the suspension electromagnet in a suspended state.

In the case where a rotating magnet rotates within the base, when the rotating magnet rotates, a tracking magnet attached to the lower end of a hanging rod hanging from the floating object rotates accordingly, and the floating object also quietly rotates around the core holding rod. do.

In addition, when a landing magnet is attached to the bottom of a floating object and a positioning electromagnet is installed inside the base, the upper suspension electromagnet is energized and the lower positioning electromagnet is activated.
When turned off, the floating magnet is attracted to the suspension electromagnet, the floating object floats up and is suspended from the suspension electromagnet, and conversely, the lower positioning electromagnet is energized and the upper suspension electromagnet is turned off. When turned off, the floating object descends, the landing magnet is attracted to the positioning electromagnet, it lands in a fixed position, and waits for the next levitation operation.

In addition, in a device equipped with an optical sensor circuit, the floating magnet is placed in the effective operating light area connecting the photodiode and phototransistor that are close to the hanging electromagnet due to the mutual attraction between the hanging electromagnet and the floating magnet. When the light enters the phototransistor, the amount of light entering the phototransistor decreases, and the converter
The suspension electromagnet is de-energized via the IC, switch, and drive transistor, and the floating magnet and floating object are lowered by gravity. When the floating magnet falls below the effective operating light amount range, the above is reversed. When the amount of light incident on the phototransistor is restored, the suspension electromagnet is energized and the floating magnet and floating object rise, so the floating magnet must be constantly moved up and down within the height of the effective operating light amount range of the photodiode and phototransistor. This makes it possible to increase the distance between the hanging electromagnet and the floating magnet.

〔Example〕

An embodiment will be described with reference to the drawings. In FIG. 1, a suspension electromagnet 1 is mounted at a high position at one end of a support column 2. As shown in FIG. The floating magnet 3 has a core holding rod 5 vertically formed with a small diameter and a tip formed of a steel wire at the center of the upper surface 4, which has a polarity different from the lower surface side of the suspension electromagnet 1. Attachment: A floating object 6 is fixed to the lower surface side of the floating magnet 3. The upper tip of the core holding rod 5 is brought into contact with the lower surface 7 of the suspension electromagnet 1, and the floating magnet 3 and the floating object 6 are suspended below the suspension electromagnet 1 by magnetic attraction.

In the embodiment shown in FIG. 2, the rotating magnet 8 is attached to a rotating arm 10 that rotates around a rotating shaft 9 provided directly below the core holding rod 5.
The hanging rod 11 is attached upward from the lower surface side of the floating object 6, and its lower end is vertically positioned directly above the rotating magnet 8, and a tracking magnet 12 is attached to the tip thereof.
is installed. More specifically, the follower magnet 12 has the same radius of rotation as the radius of rotation of the rotating magnet 8 (centered on the core holding rod), and is provided at a height position where the magnetic force of the rotating magnet 8 acts.

In the embodiment shown in FIGS. 3 and 4, the landing magnet 13 is attached to the bottom surface 14 of the floating object 6, and its attachment position is preferably directly below the core holding rod 5. The positioning electromagnet 15 is provided directly below the landing magnet 13, and the positioning electromagnet 15 and the suspension electromagnet 1 are connected to a switching contact 16 in which the A contact and the B contact operate simultaneously, and one is ON. In this case, configure the circuit so that the other one is turned off.

In the embodiment shown in FIGS. 5 and 6, the light emitting element 17 uses a photodiode, for example, and the light receiving element 18 uses a phototransistor to form a positioning optical sensor. At the height position within the magnetic field range where the attractive force between the floating magnet 3 and the suspension electromagnet 1 acts, and at the left and right positions of the pillar 2 at a low position where the core holding rod 5 does not come into contact with the suspension electromagnet 1. Provided facing each other. Further, as an operating circuit for the positioning optical sensor, one side of a converter 19 formed of an IC is connected to the light receiving element 18,
The other output side is a driver element group 22 of the hanging electromagnet 1 formed by a switch 20 and a transistor 21 provided in a circuit that supplies electricity to the electromagnet 1.
It is desirable to connect a variable resistor 23 and a transformer 24 to the input side of the driver element group 22 which is connected to the input side of the driver element group 22 to transmit power. In more detail, the hanging electromagnet 1 is 130 mm Henry, and the photodiode is
1.2V, phototransistor 1.2V, bias current -
Good results were obtained using 15V, driver transistor 12V x 400A, and transformer 12-17V.

[Effect of idea]

Since the present invention is configured as described above, it produces the effects described below.

In the magnetic floating device for an object according to claim 1, a large floating object can be suspended from a suspension electromagnet at a high position via a small-diameter core holding rod, and the core holding rod is suspended by magnetic centripetal force. The floating object is brought into contact with the center of the lower surface of the electromagnet and swings and rotates around the core holding rod, making it appear as if it is floating, making it possible to provide smartly shaped interior decorations and fun educational toys.

In the magnetic floating device for an object according to the second aspect of the present invention, the floating object can also be quietly rotated by following the rotation of the rotating magnet 8 via the tracking magnet.

In the magnetic floating device for an object according to claim 3, when the suspension electromagnet is energized by switching the switching contact, the floating object rises and is suspended from the suspension electromagnet, and the lower positioning electromagnet is energized. When I did,
The floating object can be lowered to a fixed position by the attraction force with the landing magnet and held stationary.

In the magnetic floating device for objects according to claim 4, since the floating object can be floated to a low position far away from the suspension electromagnet using the optical sensor, the floating object appears to be floating alone in the room. Its value will further increase as interior decoration and educational toys.

[Brief explanation of drawings]

Figure 1 is a front view of the magnetic floating device for objects, Figure 2 is a front view showing a state in which a rotating magnet is installed, Figure 3 is a front view showing a state in which a positioning electromagnet is installed, and Figure 4 is a front view showing a state in which a positioning electromagnet is installed. An electric circuit diagram when an electromagnet is installed, Figure 5 is a front view when an optical sensor is installed, Figure 6 is an electric circuit diagram when an optical sensor is installed, and Figure 7 is an electric circuit diagram when an optical sensor is installed.
The figure shows a conventional magnetic floating device for objects. DESCRIPTION OF SYMBOLS 1... Hanging electromagnet, 2... Support column, 3... Floating magnet, 4... Top surface, 5... Core holding rod, 6... Floating object, 7... Bottom surface, 8... Rotating magnet, 9... ... Rotating shaft, 10... Rotating arm, 11... Hanging rod, 12...
Tracking magnet, 13... Landing magnet, 14... Bottom surface,
15... Positioning electromagnet, 16... Switching contact, 17... Light emitting element, 18... Light receiving element, 19
...Converter, 20...Switch, 21...Transistor, 22...Driver element group, 23...
...Variable resistance, 24...Transformer.

Claims (1)

[Claims for Utility Model Registration] 1. A core holding rod 5 is vertically disposed at the center of the upper surface 4 under the hanging electromagnet 1 which is installed at a high position on one end of the support column 2, and A magnetic floating device for an object, in which a floating magnet 3 to which a floating object 6 is attached is suspended by the mutual magnetic attraction between the suspension electromagnet 1 and the floating magnet 3 via the core holding rod 5. 2. A rotating magnet 8 that rotates around a position directly below the core holding rod 5 and a follower magnet that is attached to the lower end of the hanging rod 11 hanging from the floating object 6 and provided on the same rotational circumference as the rotating magnet 8. 12. A magnetic floating device for an object according to claim 1, comprising: 12. 3 Bottom surface 1 of the floating object 6 directly below the core holding rod 5
A landing magnet 13 is attached to the landing magnet 13, a positioning electromagnet 15 is provided below the landing magnet 13, and a current switching contact 16 is connected to the suspension electromagnet 1 and the positioning electromagnet 15. A magnetic levitation device for the object according to item 1. 4 At a height position within the magnetic field range where the attraction force between the floating magnet 3 and the suspension electromagnet 1 acts, and at the core holding rod 5
A light emitting element 17 and a light receiving element 18 are attached to the left and right pillars 2 at low positions that do not touch the hanging electromagnet 1, and the driver element group 22 of the hanging electromagnet 1 is connected to the light emitting element 17 and the light receiving element 18. 2. A magnetic floating device for an object according to claim 1, wherein said positioning optical sensor circuit is formed by said positioning optical sensor circuit.