JPS61240827A - Automatic charger for unmanned transport vehicle - 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 [Industrial Field of Application] The present invention relates to a moving photoelectric device for an automatic guided vehicle that automatically photoelectrically charges the battery of an automatic guided vehicle used in a factory or the like.

[Prior art]

In recent years, F A L F factory in factories
Automation is progressing, and along with this, unmanned guided vehicles that transport materials, products, etc. are increasing in pressure inside factories.
It is used. This automatic guided vehicle usually uses a battery as a power source, and therefore, it is necessary to periodically power up the battery. In this case, the time to charge the battery is 2N!, which measures the electrical wrinkles of the battery. It is detected based on the output of the l-regulator, or detected by the central controller based on the traveling time of the automatic guided vehicle.

Conventionally, photovoltaic batteries installed in automated guided vehicles have been operated in the following manner. In other words, when the time comes for Gwangtun Dingbei, the automatic guided vehicle will move at a predetermined speed.
The vehicle travels to the location, and then connects the connector of the photoelectric device provided at the location with the connector provided on the automatic guided vehicle. Since then, photoelectric photoelectronics have been carried out. When the photoelectric test ends, the automated guided vehicle leaves Kuyagi and heads to the next work location.

[The problem that the invention attempts to solve]

By the way, an automatic guided vehicle uses a large-capacity battery, so it takes several hours to charge it. As a result, in the conventional photoelectric method described above, there is a problem that the operation rate of the automatic guided vehicle is extremely poor because the automatic guided vehicle cannot be used at all during the photoelectric time. Therefore, it is necessary to automatically connect the connector of the automatic guided vehicle and the connector of the optical ME device, which requires high precision in positioning the automatic guided vehicle and makes the connector coupling mechanism difficult. Furthermore, the photocurrent is generally a large current, and as a result, generation of heat and arcing at the contact portion of the sinter is unavoidable.

This invention was made in view of the above circumstances, and its purpose is to increase the operating rate of automatic guided vehicles.
It is an object of the present invention to provide an automatic charging device for an automatic guided vehicle that can solve all problems based on the above-mentioned connector.

[Means for solving problems]

This invention provides a first core on the ground side, a first coil wound around the first core and connected to an AC power supply, and a first core and a first coil on the automatic guided vehicle side. second to engage
a core, a second coil wound around the second core, and rectifying means for rectifying the induced voltage generated in the second coil, and the direct current voltage output from the rectifying means is used to control the unattended operation. It is designed to charge the battery of the transport vehicle.

[For production]

If the first core around which the first fill is wound is provided at the load unloading station, battery photoelectricity can be performed using the time for unloading the load of the automatic guided vehicle. Further, since the present invention does not use a connector and uses electromagnetic coupling instead, the automatic guided vehicle can be positioned relatively roughly, and there is no generation of heat or arc at the contact portion.

〔Example〕

The first FA is a diagram showing the principle configuration of a moving light station device according to an embodiment of the present invention. In this diagram, block 1 shows a configuration installed on the ground, and block 2 is a diagram for installing an automatic guided vehicle. The configuration provided is shown. block l
K16, 3 is a core, 4 is a coil, and this coil 4 is connected to a factory source 5, a switch 6 and an overcurrent detection circuit 7.
It is designed to be supplied via. In this embodiment, the above-mentioned structure of block l is provided in the yuzu-doshi station. Next, in block 2, 9 is a core that is engaged with core 3, and lO is a core that is wound around core 9. The output voltage of this coil IO is rectified by a rectifier circuit 11 and supplied to a battery 12 which is a power source of the automatic guided vehicle.

In the above configuration, when the automatic guided vehicle stops at the fixed position of the decoding station, the core 9 provided on the automatic guided vehicle
The end face of and the 9s surface of the flap 73 provided on the ground engage,
This K forms a magnetic path that passes through each of the fills 10.4. On the other hand, the central ITK control device (not shown) of the automatic guided vehicle system turns on the switch 6 when the automatic guided vehicle stops at a fixed position. As a result, the factory voltage 11m5 is supplied to the coil 4, and therefore the coil ylOK AC 11E voltage is induced, and this AC voltage is rectified by the rectifier circuit 11 and supplied to the battery 12, so that the battery 12 is charged. Further, the central control device turns off the switch 6 after a certain period of time has passed after turning on the switch 6, and starts the automatic guided vehicle.

Note that if the switch 6 is accidentally turned on while the core 9 is not engaged with the ground of the core 3, a large current will flow through the coil 4 and burn it out. The overcurrent detection circuit 7 was inserted to prevent this from happening.
7:e is set so that the circuit is cut off when an overcurrent is detected.

FIG. 2 is a diagram showing the automated guided vehicle 15 parked at the unloading station. In this diagram, 16 indicates guidance, and 17 indicates the configuration in block 1 of FIG. 1. It's a charging box.

Moreover, FIG. 3 is a view seen from above in FIG. 2, and in this figure, 18 is a lowering station, and 19 is a vehicle detector. The output of this vehicle detector 19 is supplied to a central controller, and the central controller turns on the switch 6 shown in FIG. 1 based on the output of this vehicle detector 19.

Next, an example of a configuration for engaging the core 3 and the core 9 will be described. FIG. V is a top view of the structure of the core 3.9 and its mounting section, and FIG. 5 is a perspective view of the core 3.9 and its mounting section. As shown in Fig. 5, the core 3 has a U-shaped cross section, and a coil 4 is installed in the center plate.
is wound.

Reference numeral 21 denotes a mounting member made of a non-magnetic material, and a U-shaped recess 22 is formed in the center of the front surface of the mounting member.
il[Iys811S is formed into a curved surface. ) 73 is fitted and fixed into the four parts 22.

In addition, in the center of the two side plate parts of the flap 73, there is a cutout part 3a.
Eight notches are formed, and a prismatic member 24 made of a non-magnetic material is fitted into these notches $3a. Then, the front surface of this member 24 and the [riJIfi
A concave groove 25 is formed in which the width increases as the depth increases.In this case, the core 3
The end face of the photoelectric box 17 is attached with its end slightly protruding from the side plate of the photoelectric box 17. Note that the member 24 and the mounting member 21 may be formed integrally.

Next, the core 9 shown in FIG. A member 26 made of a non-magnetic material is fitted and fixed inside the portion. This member 26 has a cross section shown in FIG. 6, and has a protruding ridge 26a formed on its front surface, the radius of which widens as it goes forward.

Additionally, holding members 27 and 28 for holding the core 9 are attached to both sides of the 3790, respectively. These holding members 2
7. 28 are each made of a non-magnetic material, one end of the front surface is formed into a curved surface, and a recess 27a is provided on the rear surface.

28a are respectively formed. And these concave 8I
Springs 30 and 31 are interposed between the bottom surfaces of s27a and s28a and the vehicle body 7 relay A15a, thereby urging the core 9 forward.

In the above configuration, when the automatic guided vehicle 15 moves in the direction of the arrow Y shown in FIG.
1b and the curved surface portion 28b of the holding member 280 come into contact with each other, and thereafter, as the automatic guided vehicle 15 advances, the core 9 moves into the vehicle body frame 15a against the biasing force of the springs 30 and 31.

Next, when the automatic guided vehicle 15 moves further, the protruding line 26a of the member 26 fits into the groove 25 of the mounting member 21 and the member 24. When the automatic guided vehicle 15 stops at a fixed position, the core 9 faces the core 3, and the end surface of the core 9 is in close contact with the end surface of the core 3 due to the biasing force of the springs 30 and 31. Even if the end face and the end face of the core 3 are brought into close contact with each other with a slight deviation, the photoelectric efficiency will not be significantly affected. In addition, the protrusion 26a and [! ! ] Even if there is play between the grooves 25, the cores 3 and 9 are tightly coupled by the springs 30 and 31. As a result, the positioning and stacking of the automatic guided vehicle 15 can be done more roughly than in the case of conventional connectors. In addition, in the above embodiment, the light box 17 is provided at the citron removal station, or it is replaced with the conventional light box 17.
It may be installed at location E. However, in this case, the operating rate of the automatic guided vehicle becomes poor as in the conventional case, so it is preferable to stack the automatic guided vehicle and provide it at a station.

〔Effect of the invention〕

As explained above, according to the present invention, since a connector is not used, the positioning accuracy of the automatic guided vehicle is not required as much as the conventional one, and the coupling mechanism is Fi1 + turtle, and furthermore, the heat at the contact part is reduced. The advantage is that no arc occurs. In addition, if the core on the ground side is installed at the deglazing station, the battery can be charged using the loading and unloading time, dramatically increasing the operating rate of the automatic guided vehicle. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing the original configuration of an embodiment of the present invention, FIGS. 2 and 3 are a perspective view and a plan view of automatic guided vehicles stacked and stopped at a station, respectively, and FIG. The diagram shows core 9
Figure 5 is a perspective view showing the installation of core 3, and Figure 3 is a perspective view showing the configuration of the core 3. Figure g1!6 shows the cross-sectional shape of member 26 in Figure V. FIG. 3...First core, 4...1st σ) coil, 9...Second core, 10...Second coil, 11. ...Seitai circuit, 15...
...Automated guided vehicle.

Claims (1)

[Claims] A first core and a first coil wound around the first core to which AC power is applied are provided on the ground side, and a second coil that engages with the first core is provided on the automatic guided vehicle side. An automatic charging device for an automatic guided vehicle, comprising: a core, a second coil wound around the second core, and a rectifier for rectifying an induced voltage generated in the second coil.