CN2092796U

CN2092796U - Automatic controlled glowing marker

Info

Publication number: CN2092796U
Application number: CN 91210574
Authority: CN
Inventors: 徐传会; 马武田; 祝春涛
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-14
Filing date: 1991-05-14
Publication date: 1992-01-08

Abstract

The utility model discloses an automatic controlled illuminating license plate with high visibility, which is composed of a bottom board, a letter board, a circuit board, a voltage-stabilizing circuit, a light control circuit and a display circuit, wherein, the circuit board is arranged on the bottom board; the voltage-stabilizing circuit, the light control circuit and the display circuit are composed of electronic components, and are arranged on the circuit board; the display circuit is composed of LEDs which are arranged in the shape of letters. The automatic controlled illuminating license plate with high visibility can be controlled bright and dark by the darkness and the brightness of environment light.

Description

Automatic controlled glowing marker

The utility model belongs to lighting equipment for vehicle, particularly a kind of automatic control luminous license plate.

At present, number plate is to adopt an iron plate and paint in the above or reflectorised paint is coated license plate number and made, and this number plate all needed just can see by license plate lamp when night, but visibility is not high, can only reach about ten meters; On October 21st, 1987, the application number of bulletin was " the round-the-clock car plate " of " 87201331 ", be to constitute by character code board, illumination display lamp, card in one's hand, this number plate is by being contained in illuminating lamp in the card in one's hand demonstration license plate number of throwing light on, its visibility is not high yet, and the light on and off of the illuminating lamp in this number plate can not be by the light and shade control of ambient light.

The purpose of this utility model is to overcome the deficiencies in the prior art part, the automatic control luminous license plate that provides a kind of visibility height, light on and off to be controlled by the ambient light light and shade.

The utility model is achieved in that it has a base plate, word code plate, wiring board is installed on base plate, mu balanced circuit, light-operated circuit and the display circuit be made up of electronic devices and components are installed in the circuit board, and said display circuit is made up of the light emitting diode of arranging according to character code shape.

Below in conjunction with drawings and Examples the utility model is elaborated:

Fig. 1 is an axonometric drawing of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is circuit theory diagrams of the present utility model;

As accompanying drawing 1, shown in 2, the utility model has a base plate 7 that has trip bolt, on base plate 7, the casing that is made of metal 2 that has character code shape space and outside surface japanning on the panel is installed with trip bolt, in the character code shape space of casing 2, be installed with white pmma plate 1, said casing 2 and poly (methyl methacrylate) plate 1 are formed word code plate, wiring board 6 also is installed on base plate 7, the elastic insulated plate 5 of antidetonation and insulating effect has been installed between wiring board 6 and base plate 7, be welded with on the wiring board 6 with word code plate on the corresponding multi-group light-emitting diode of arranging according to character code shape 4 of character code, two of said every group of light emitting diode 4 terminates at the power input 8 on the wiring board 6 and the output terminal 9 of control circuit, position corresponding with light emitting diode 4 on wiring board 6 is fitted with the plastic processing frame 3 that is used for optically focused

Said plastic processing frame 3 can adopt redness and make character code shape, plastic processing frame 3 inner bottom surfaces near the pin place of light emitting diode 4 be marked with the epoxy resin 4 of protection against the tide and fastening effect ', in order to adapt to different automobile types, a passive carriage can be installed in the number plate bottom.

Circuit structure of the present utility model as shown in Figure 3, it is made up of mu balanced circuit, light-operated circuit, display circuit.Said mu balanced circuit is by resistance R 7, and capacitor C 1 and stabilivolt W form; Said light-operated circuit can adopt photoresistance by the light activated element R1(between the output terminal 10 that is connected on mu balanced circuit respectively and the system's ground wire 11), upper offset resistance R 2 and filter capacitor C2, upper offset resistance R 3, the c-e utmost point of triode V1 and below-center offset resistance R 4, the c-e utmost point of upper offset resistance R 5 and triode V2, be serially connected in the complex pipe (V3 between the c-e utmost point of triode V2, V4) the b-e utmost point and below-center offset resistance R 6 are formed, wherein the b utmost point of triode V1 is connected on the node of resistance R 2 and capacitor C 2, the b utmost point of triode V2 is connected on the e utmost point of triode V2, capacitor C 2 can be eliminated the interference of higher hamonic wave, in order to shorten complex pipe (V3, V4) ON time and closing time, between the b utmost point of the c of the triode V2 utmost point and triode V3, can connect a resistance and directly connect without lead; At the output terminal 9(of power input 8 and control circuit is the c utmost point of complex pipe V3, V4) between be parallel with multi-group light-emitting diode 4 and constitute display circuits; Between the b utmost point of complex pipe (V3 and V4) and system's ground wire 11 also and be connected to the c-e utmost point of capacitor C 3 and triode V5, wherein the base stage of triode V5 is connected on the node of complex pipe (V3 and V4) and resistance R 6, resistance R 5 and capacitor C 3 constitute the delay protection circuit, in the time of can avoiding opening car daytime, number plate moment is luminous; Triode V5 and resistance R 6 constitute current foldback circuit, can make the base flow of complex pipe (V3 and V4) constant, and the also available single tube of said complex pipe (V3 and V4) replaces.

When mounted, by the trip bolt on the base plate 7 this number plate is fixed on corresponding position on the car body, the power input 8 of this number plate is connected on the automobile power source by key control on/off, plug key after, promptly connect the power supply of this number plate, when daytime, there were strong illumination at natural light irradiation or night, the resistance of light activated element R1 reduces, and makes triode V1 conducting, triode V2 saturated, this moment triode V2 c low level very, complex pipe (V3 and V4) ends, and light emitting diode 4 is not luminous; When night, dull thread shone, the very big open circuit that is equivalent to of light activated element R1 resistance, triode V1 and V2 end, and the voltage Vc2 of triode V2 is a high level, makes complex pipe (V3 and V4) conducting, light emitting diode 4 luminous demonstration brand numbers.

Claims

1, a kind of automatic control luminous license plate, comprise base plate, word code plate, be installed in the wiring board on the base plate, the mu balanced circuit of forming by the electronic devices and components of installing in the circuit board, light-operated circuit, display circuit, it is characterized in that, said light-operated circuit is by the light activated element (R1) between the output terminal that is connected on mu balanced circuit respectively (10) and the system's ground wire (11), upper offset resistance (R2) and filter capacitor (C2), upper offset resistance (R3), the c-e utmost point of triode (V1) and below-center offset resistance (R4), the c-e utmost point of upper offset resistance (R5) and triode (V2), be serially connected in the complex pipe (V3 between the c-e utmost point of triode (V2), V4) the b-e utmost point and below-center offset resistance (R6) are formed, wherein the b utmost point of triode (V1) is connected on the node of resistance (R2) and electric capacity (C2), the b utmost point of triode (V2) is connected on the e utmost point of triode (V1), complex pipe (V3, V4) the c utmost point is the output terminal (9) of light-operated circuit, said display circuit is made up of the multi-group light-emitting diode (4) that is connected in parallel between power input (8) and the light-operated circuit output terminal (9), and said light emitting diode (4) is arranged according to character code shape.

2, according to the said automatic control luminous license plate of claim 1; it is characterized in that; between the b utmost point of complex pipe (V3, V4) and system's ground wire (11) also and be connected to the c-e utmost point of electric capacity (C3) and triode (V5); the b utmost point of said triode (V5) is connected on the node of complex pipe (V3 and V4) and resistance (R6); make resistance (R5) and electric capacity (C2) constitute the delay protection circuit, triode (V5) and resistance (R6) constitute current foldback circuit.

3, according to claim 1 or 2 said automatic control luminous license plates, it is characterized in that, the elastic insulated plate (5) of insulation and antihunt action has been installed between wiring board (6) and base plate (7).

4, according to claim 1 or 2 said automatic control luminous license plates, it is characterized in that, go up the position corresponding at wiring board (6) plastic processing frame (3) that is used for optically focused is installed, be marked with fastening and epoxy resin (4 ') moisture-proof role at the pin place of the close light emitting diode (4) of inner bottom surface of plastic processing frame (3) with light emitting diode (4).

5, according to the said automatic control luminous license plate of claim 3, it is characterized in that, go up the position corresponding at wiring board (6) plastic processing frame (3) that is used for optically focused is installed, be marked with fastening and epoxy resin (4 ') moisture-proof role at the pin place of the close light emitting diode (4) of inner bottom surface of plastic processing frame (3) with light emitting diode (4).