CN2298171Y

CN2298171Y - Electronic display taxicar sign

Info

Publication number: CN2298171Y
Application number: CN 97225409
Authority: CN
Inventors: 章定利
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-11
Filing date: 1997-06-11
Publication date: 1998-11-25
Anticipated expiration: 2007-06-11

Abstract

The utility model belongs to an electronic display taxicar sign board. The utility model is characterized in that a circuit control board is arranged in the housing of a signboard, the display circuit of an LED dot matrix on which the character models comprising ' lease TAXI ' and ' empty ' are welded can be arranged on the control board, and the utility model is also provided with a circuit which can do pressure reduction for a 12V battery jar DC power supply and a switch control circuit. The utility model has the advantage that the vehicle can not be broken regardless of how the vibration are corrupted, and also has the advantages of long service life, long time display, obvious night display and long distance vision. The ' lease TAXI ' and ' empty ' character models can be transformed to be used under the control of a driver.

Description

Electronic display taxicar sign board

The utility model is a kind of electronic display taxicar sign board.

At present the taxicar sign board that uses between previous night of taxicar all adopts the direct current bulb, is easy to badly, causes taxicar when night running, and its sign board often can't show, makes troubles for client and chaufeur.

The purpose of this utility model is to provide a kind of electronic display taxicar sign board at above-mentioned shortcoming.

Main technical schemes of the present utility model is in the housing of sign board circuit control panel to be housed, be welded with the LED array of font " going out TAXI rents " or " empty EMPTY car " on the control desk, also be provided with the ON-OFF control circuit that hand merit K switch and relay J are used on the control desk.Two kinds the sign font can chaufeur to the control action of K switch under the exchange luminous demonstration.

The light emitting diode of the utility model electronic display taxicar sign board no matter car how to shake can be not bad, can show for a long time continuously, " going out TAXI rents " and " empty EMPTY car " two kinds of signs font can exchange use under the effect of K switch, show obviously in night, can see at a distance, and play the purpose of beautifying city.

Below in conjunction with the embodiment accompanying drawing the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model shell.

Fig. 2 is the schematic circuit diagram of first kind of embodiment of the utility model.

Fig. 3 is the schematic circuit diagram of second kind of embodiment of the utility model.

As shown in the figure, it comprises electronic display taxicar sign board of the present utility model power supply, housing and is installed in the interior circuit control panel of housing etc., it is characterized in that being welded with on the control desk display circuit of the LED array of font " going out TAXI rents " and " empty EMPTY car ", display circuit can be the LED light-emitting diodes of the many groups circuit parallel (as first kind of embodiment) that the back forms of connect with resistance R, also can adopt and organize connect with resistance R after the parallel connection of LED light-emitting diode (as second kind of embodiment) more again.Also be provided with decompression voltage regulator on the circuit control panel in second kind of embodiment, that is: the storage battery direct supply of 12V is at first through IC ₇₈₀₅The integrated package lowering and stabilizing blood pressure is to the vdc of 5V, after resistance R ₂Conducting is again through stabilivolt D ₂The vdc of lowering and stabilizing blood pressure to the 3V sent into LED (as shown in Figure 3) by triode BG at last.

Remove resistance R among above-mentioned two kinds of embodiment ₃Be about 300 Ω, all the other resistance R are about 10 Ω, and triode BG selects BU for use ₄₀₆

Described ON-OFF control circuit is: hand switch K is connected between battery power and the relay, when K switch is opened, and the relay J adhesive, normally closed contact is connected, at this moment the LED of " empty EMPTY car " sign board font ₁Luminous demonstration is pressed when closing up when K switch, and the relay J normally closed contact disconnects, and often switches on, at this moment the LED of " going out TAXT rents " sign board font ₂Luminous demonstration.

Claims

1, a kind of electronic display taxicar sign board, it comprises housing, is contained in interior circuit control panel of housing and power supply etc., it is characterized in that being welded with on the circuit control panel display circuit and the ON-OFF control circuit of the light emitting diode dot matrix of font " going out TAXT rents " and " empty EMPTY car ", switch circuit adopts hand switch K to be connected between battery power and the relay J, is used for controlling " going out TAXI rents " and " empty EMPTY car " two kinds of fonts and exchanges luminous demonstration.

2, electronic display taxicar sign board according to claim 1 is characterized in that also being provided with on the control desk decompression voltage regulator, that is: the storage battery direct supply of 12V is at first through IC ₇₈₀₅The integrated package lowering and stabilizing blood pressure is to the 5V direct supply, after resistance R ₂Conducting is again by stabilivolt D ₂Lowering and stabilizing blood pressure becomes the 3V vdc, sends into LED by the BG triode at last.