Self-propelled conveying system with capacitor and secondary battery as power supply
A technology of secondary batteries and conveying systems, applied in electric traction, electric vehicles, transportation and packaging, etc., to achieve the effect of no shift in stopping accuracy, elimination of waste, and long service life
Inactive Publication Date: 2015-06-17
NAKANISHI METAL WORKS CO LTD
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Problems solved by technology
[0015] However, on the other side of being able to store regenerative energy, the stopping position of the self-propelled vehicle may be shifted by, for example, about 200 to 300 mm, so there is still room for improvement from the viewpoint of improving the stopping accuracy of the self-propelled vehicle
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[0056] Next, embodiments of the present invention will be described in detail based on the drawings, but the present invention is not limited to the embodiments shown in the drawings, and includes all embodiments that satisfy the requirements described in the claims.
[0057] figure 1 The shown self-propelled conveying system using a capacitor and a secondary battery as a power source according to an embodiment of the present invention is composed of, for example, unmanned automatic conveying vehicles 1, 1, . . . The predetermined route R in the factory formed by the magnetic guide belt is used to convey the conveyed goods by self-driving while detecting the position of the guide tape; The charging terminal 6A as the power supply body and the charging power supply 3 are composed; the unshown stacking lift platform or unloading lift platform is installed at the positions of the charging stations 2A and 2B to load and unload the conveyed objects; and the control device, etc. , ...
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PROBLEM TO BE SOLVED: To reuse recovered energy and to suppress variance on stop accuracy of a self-propelled carrier. SOLUTION: The self-propelled conveying system includes: a bidirectional DC-DC converter 8 connected between a capacitor 7 and a driving controller 13; a control circuit 12 turning off a switch 11 when the output voltage Vi of the capacitor 7 is equal to or more than that of the DC-DC converter 8, turns on the switch 11 when the output voltage Vi is less than that of the DC-DC converter 8, switches the DC-DC converter 8 to a recovery side when the output side voltage of the DC-DC converter 8 is equal to or more than a recovery start setting voltage, and switches the DC-DC converter 8 to a power running side when the output side voltage of the DC-DC converter 8 is equal to or less than a recovery completion setting voltage; and a rectifying means 17 connected between the switch 11 and the secondary battery 10 to supply current from the secondary battery 10 side to the driving controller 13 side while not supplying any in its opposite direction.
Description
technical field [0001] The present invention relates to a self-propelled transportation system that includes a capacitor and a secondary battery in a self-propelled transportation vehicle that moves along a predetermined route and drives the self-propelled transportation vehicle with electric power charged in them. Background technique [0002] There are following self-propelled conveying systems (for example, referring to Patent Document 1 figure 1 and Figure 4 ): An automatic conveying vehicle equipped with a motor for driving the driving wheels and its drive control device, and an electric double-layer capacitor as a driving power supply. The power charged by the layer capacitor is supplied to the drive control device to drive the motor to move the automatic conveying vehicle, and the electric double layer capacitor is used as the power supply; it is also used as an auxiliary energy source for the electric double layer capacitor and connected in parallel with the electr...
Claims
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IPC IPC(8): B60L11/18B60L15/00
CPCY02T10/70
Inventor 松下胜己水谷英昭
Owner NAKANISHI METAL WORKS CO LTD