JPH03183303A - Charging structure for magnetic levitation carrier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a charging structure for externally charging a storage battery mounted on a magnetically levitated vehicle at a charging station without generating dust.

[Conventional technology]

Magnetic levitation vehicles levitate the vehicle body using the attraction or repulsion force of magnets on ferromagnetic rails, and run using the thrust of linear motors. Therefore, if the vehicle body is powered by a battery mounted on the vehicle body, dust generation due to friction is avoided. Therefore, it is attracting attention as a conveyance system for lines that require an ultra-clean environment.

By the way, this type of transport vehicle is driven by a storage battery mounted on the vehicle body, and therefore requires periodic power supply to the storage battery.

Therefore, as a charging structure for this purpose, the present applicant has developed a system that also serves as a vibration prevention device that prevents the transport vehicle from swaying at the charging station, so that the terminal on the external power supply side and the terminal on the charging circuit side provided on the vehicle body are brought into contact with each other. 1987-1
It is proposed in No. 30186.

[Problem to be solved by the invention]

As with the previous proposal by the present applicant, the conventional structure is to stop the transport vehicle on the charging stage tongue, adsorb it to the rail, and then retract it to the side of the transport path. The electric connector on the station side is moved to the vehicle body side using an actuator and connected to a charging circuit side terminal provided on the side of the vehicle body to perform charging.

Therefore, the structure of the electrical connector on the side of the charging station that has a movable part becomes complicated, and the electrical connector that has a movable part becomes one of the sources of dust generation in the clean room.

The present invention aims to provide a charging structure to eliminate such problems.

[Means to solve the problem]

In order to solve the above problem, in the present invention, a part of the rail of the charging stage is configured with a charging terminal connected to an external power source. Further, the terminals of the charging circuit on the vehicle body side are provided at positions facing the terminals when the vehicle body is at the charging station, and the charging terminals are brought into contact with each other when the vehicle body is attracted to the rail at the station.

[Effect]

With the above structure, the charging terminal on the external power source side and the charging terminal on the vehicle body side come into contact simply by butting each other, and no friction occurs between the charging terminals. Furthermore, since there is no mechanism for moving the terminal, there is no friction between other elements, which simplifies the charging structure and eliminates the problem of dust generation.

〔Example〕

An embodiment of the present invention is shown in FIGS. 1 and 2. FIG.

As shown in the figure, a part of the ferromagnetic rail 1 installed parallel to the charging station is formed by an electrical contact 5.6 insulated from the other part by an insulator 12.
One of these contacts 5 is connected to the positive electrode of the charger 7, and the other contact 6 is connected to the negative electrode of the charger 7.

In addition, a levitation magnet 2 provided on the vehicle body 11 of the transport vehicle
The rails are also individually insulated by insulators 12 to prevent a short circuit from occurring between the rails through the vehicle body when adhering to the rails.

Furthermore, on the upper part of the vehicle body, there is a charger on the transport vehicle side that is located opposite the contact 5.6 when the transport vehicle stops at the charging station, and that contacts the contact 5.6 when the transport vehicle is attracted to the rail. A positive electrode contact 3 and a negative electrode contact 4 are provided. This contact point 3.4 may be provided at the same surface position as the magnetic pole surface of magnet 2, but if it is made to protrude slightly toward the rail side than the magnetic pole surface of magnet 2, as shown in the figure, the adsorption force of the vehicle body to the rail will be increased. Using this, contact pressure can be applied between contacts 3.5 and 4.6, thereby stabilizing the charging state.

In addition, in the figure, 8 is a stator of a linear motor installed on the ground side at a predetermined interval, S is a reaction plate installed on the car body, and 10 is a plate that absorbs the inclination of the car body and closes the gap between the rail 1 and the mag-mount 2. An arm 13 capable of seesaw movement to maintain a constant state is a gap sensor that detects the size of the gap.

FIG. 3 shows the circuit of the charging device installed on the vehicle body side.

In the figure, 142.14b is a storage battery, 15a to 15e and 18
1 is a relay, 16a to 16d are secondary terminals for connecting the battery to the circuit, and 17 is an output connector.

When the contact 3.4 contacts the above-mentioned contact 5.6 at the charging station, this is detected by the relay 18 and the normally closed relay 156 is opened, the normally open relays 15a to 15d are driven closed, and the power supplied from the tii is The electricity is supplied to the battery 14a,
14b is charged.

Moreover, when charging is completed, relays 15a to 15d open.
18 is closed, the batteries 14a and 14b are connected in series, and the electricity stored in the batteries flows to the floating magnet etc. via the output connector.

〔effect〕

As described above, in this invention, a part of the rail of the charging station is flllffl with the power supply side charging terminal, and when the vehicle body is attracted to the rail, the vehicle body side charging terminal is brought into contact with the terminal to perform charging. No dust such as abrasion powder is generated in the clean room.

Furthermore, in addition to simplifying the electrical connector, charging starts immediately when the conveyance vehicle is attached to the rail, making it possible to minimize time loss due to charging.

[Brief explanation of drawings]

FIG. 1 is a front view showing an example of the charging structure of the present invention, FIG. 2 is a side view showing a part thereof, and FIG. 3 is a circuit diagram of the charging device. 1... Ferromagnetic rail, 2... Levitation magnet, 3... Positive contact on the transport vehicle side, 4... Negative contact on the transport vehicle side, 5 ...Rail side positive contact, 6...Rail side negative contact, 7...Charger, 12...Insulator, 14a, 14b... ...Storage battery, 15a-156.18...Relay 16a-16
d...Secondary terminal, 17...Output connector.

Claims (1)

[Claims] (1) A charging structure for supplying power from outside at a charging station to charge a magnetically levitated vehicle that travels along a ferromagnetic rail installed on the ground using the thrust of a linear motor without contacting the rail. , a part of the rail is configured with a charging terminal connected to an external power source, and a terminal of the charging circuit on the vehicle body side is provided at a position opposite to the terminal when the vehicle body is at the charging station, and the vehicle body is connected to the rail at the station. A charging structure for a magnetically levitated conveyance vehicle, characterized in that charging terminals are brought into contact with each other by adsorption.