JPS6085024A - Carriage - Google Patents

Abstract

PURPOSE:To realize control over consumption of a battery and prolongation of traveling time of a carriage without augmenting a capacity of the battery or adopting the wire system by providing a battery-driven carriage with a receiving terminal to supply said carriage with power from outside. CONSTITUTION:A handling robot 5 as a work device is provided in the front part of the upper surface of a body 2 for an unmanned carriage, while a plug 6 is projected from the lower part of the frontal face. The first and the second receiving terminals 7, 8 are provided in the front face of the plug 6, and the terminals 7 and 8 are connected respectively to the robot 5 and a battery 4 so as to be charged. The carriage 1 travels among the plural number of stations 10 according to a command of the central control section and the like. The station 10 is provided with a connection part 11, which is equipped with a socket 12 shaped like a sunken hollow stand so as to be adjustable to the plug 6 of the carriage 1. Further, the first and the second feed terminals 13, 14 are provided on the bottom of the socket.

Description

[Detailed description of the invention] [Technical part'I! F] The present invention relates to transportation technology, and particularly to a self-propelled transportation vehicle using a battery as a driving source, and relates to a transportation vehicle that is effective for use in, for example, a semiconductor device manufacturing factory.

[Background Art] Connecting the entire line to a rigid line not only makes no sense, but also hinders flexibility. Therefore, in a semiconductor device manufacturing factory, when wafers are to be transported between devices or between work processes, it is conceivable that a plurality of wafers are placed in a cassette and transported by an automatic guided vehicle.

One conceivable example of such a transport vehicle is one in which a battery is mounted on the vehicle body and the vehicle is configured to self-propel between stations using this as a drive source.

However, the running time of such transport vehicles is limited by the capacity of the battery, so in order to ensure long running times and carry working equipment, it is necessary to increase the capacity of the battery or to supply power by wire. The inventors have discovered that there is a problem that

[Objective of the Invention 1 An object of the present invention is to provide a conveyance technology that can realize long-time running and mounting of working equipment while avoiding the need for increasing the capacity of batteries, using wires, etc.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

Outline of the Invention 1 A brief overview of typical inventions disclosed in this application is as follows.

Of course, by providing a power receiving terminal for supplying power from the outside to a conveyance vehicle that is equipped with a battery and driven by the battery, it is possible to operate for a long time, and the functions of work equipment, etc. can be improved. Addition C is also designed to suppress the consumption of power for running due to the operation of the function.

[Embodiment] The figure is a perspective view showing an automatic guided vehicle that is an embodiment of the present invention.

In this embodiment, the automatic guided vehicle 1 is equipped with a vehicle body 2 having a plurality of wheels 3, and the vehicle body 2 includes a motor (not shown) for rotationally driving the wheels 3 and a motor for controlling the direction of the wheels 3. The vehicle is equipped with an automatic steering system (not shown), a travel command system (not shown) consisting of a microcomputer, etc., and a battery 4 that serves as a driving source for these devices. Car body 2
A handling robot/1. (hereinafter referred to as "Robono I.") 5 is installed at the front of the upper surface of the robot as a working device for carrying out transfer work and the like. A plug portion 6 is provided protruding from the lower front surface of the vehicle body 2, and the plug portion 6 is formed into a trapezoidal body with its short side facing forward. A first power receiving terminal 7 and a second power receiving terminal 8 are provided on the front surface of the plug portion 6. The first power receiving terminal 7 is connected to be able to supply driving power to the robot 5, and the second power receiving terminal 8 is connected to be able to charge the battery 4.

This conveyance vehicle 1 is set to travel between a plurality of stations 10 appropriately arranged in a factory in accordance with instructions from a central management department of the factory, etc., and a connecting portion 11 is connected to the conveyance vehicle at each station 10. It is provided so that the vehicle can be stopped in a predetermined position. A socket part 12 is recessed in the connecting part 11 in a hollow trapezoidal shape so as to be aligned with the plug part 6 of the carrier 1, and a first power supply terminal 13 and a second power supply terminal are provided on the bottom surface of the socket part 12. 14 are provided.

The first power supply terminal 13 is connected to a normal factory power supply (not shown), and the second power supply terminal 14 is connected to an AC-1)C conversion for converting alternating current from the factory power supply into direct current to enable charging. 15.

Next, the effect will be explained.

When the 1M die transport vehicle is properly stopped at the station 10 via the connection part 11, the plug part 6 is aligned with the socket part 7, and using this as a guide, the first and second power receiving terminals 7.8 are connected to the first,
The second power supply terminals 13 and 14 are contacted and electrically connected, respectively.

For example, when a cassette 9 containing wafers is transferred from the stage 10 to the transport vehicle L, power is supplied to the ROBOSO 1-5 through the first power supply terminal 12 and the first power receiving terminal 7. Ru.

Note that although a DC servo motor is used in the robot 5, since robots are usually equipped with an AC-DC converter, there is no problem in using a two-field power source.

On the other hand, the charging power that has passed through the AC-DC converter 15 is supplied to the battery 4 through the second power supply terminal 14 and the second power reception terminal 8, so that the battery 4 is charged.

[Effects] (1) By providing a power receiving terminal on a conveyance vehicle that is equipped with a hashite and is driven by the hashite, it is possible to take in power from the outside, thereby suppressing the consumption of the installed battery. This makes it possible to extend the till vehicle travel time without increasing the capacity of the battery or installing wires.

(2) A general transportation vehicle equipped with a battery and driven by the battery is equipped with a working device, etc. (':
Even if the JJIJ function is provided, the additional function can be driven using the electric power supplied through the power receiving terminal, so there is no need to use the on-board hashiteri, and it is possible to prevent shortening of the running time.

(3) 11, which is equipped with a battery and is driven by the battery! The vehicle is equipped with a power receiving terminal, and the external power supplied through the terminal can be used to charge the onboard battery, so the battery can be kept fully charged at all times, and 1ull transmission is possible. You can improve the work efficiency of your car at once.

+41. By equipping the LLT transport vehicle with a working device, there is no need to provide a working device at each station, so equipment costs, maintenance costs, etc. can be reduced.

(5) By providing the plug portion and a portion of the socket 1 that match each other, it is possible to ensure that the power receiving terminal and the power feeding terminal do not come into contact with each other, so that a stable electrical connection can be ensured.

Although the invention made by the present inventor has been specifically explained above based on Examples, it goes without saying that the present invention is not limited to the Examples and can be modified in various ways without departing from the gist thereof. Nor.

For example, it is not limited to providing the power receiving terminal 2111i1;
The battery may be charged separately and the actuating device may be driven by the battery, or two or more may be stacked in two stages.

It is not limited to the case where the same power supply terminal is provided for each station, but the Baum stage generator is equipped with a power supply terminal for battery charging, and the other work stations are equipped with a power supply terminal for driving the work equipment. It may also be provided.

The working device is limited to a 14-inch robot for transfer, but it can also be equipped with an assembly robot that can perform simple assembly work using a battery as a drive source during 1ull transfer.

[Field of Application] In the above explanation, the invention made by the present inventor was mainly applied to a conveyance vehicle used in a semiconductor device manufacturing factory, which is the field of application that formed the background of the invention, but the invention is limited thereto. For example,
It can also be applied to transport vehicles that take stored items in and out of warehouses.

[Brief explanation of drawings]

The figure is a perspective view showing one embodiment of the present invention. 1... Transport vehicle, 2... Vehicle body, 3... Wheels, 4...
・Battery, 5...Robot (work device), 6...
Plug part, 7.8...Power receiving terminal, 9...Cassette (
article), 10...station, 11...connection part,
12...Socket part, 13.14...Power supply terminal, 1
5...AC-DC converter.

Claims (1)

[Scope of Claims] 1. A +U transportation vehicle, which is equipped with a battery and is driven by the battery, and is provided with a power receiving terminal for supplying power from the outside. 2. The transport vehicle according to claim 1, further comprising a working device for performing any work, and the working device is driven by external power via a power receiving terminal. 3. The conveyance vehicle according to claim 1, wherein power is supplied from the outside to the battery via the power receiving terminal.