CN2132070Y

CN2132070Y - Warning light for engineering or traffic

Info

Publication number: CN2132070Y
Application number: CN 92207926
Authority: CN
Inventors: 董荣芳
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-04-28
Filing date: 1992-04-28
Publication date: 1993-05-05
Anticipated expiration: 2002-04-28

Abstract

The utility model relates to a warning light which is arranged on an emergency vehicle or an ambulance for public security and engineering. The aim of the utility model is to eliminate the mechanical rotating mechanism of an existing warning light. The mechanical rotating mechanism can generate a light splitting effect. The warning light is composed of a light body and a luminous body. The light body comprises a light base and a light cover which is sheathed on the light base. The luminous body comprises a group of high brightness LEDs which are arranged in a dot array mode according to m*n, and a control circuit which controls the high brightness LEDs to circularly be turned on and turned off according to a definite rule. A spiral rotating flashing effect can be generated because of the limitation of human vision and memory capacity. The warning light has an automatic mode which is controlled by a light control circuit and a manual mode which can play warning functions day and night. The utility model has the advantages of simple structure, obvious warning and long service life.

Description

Warning light for engineering or traffic

The utility model relates to a kind of signals of vehicles device, relates to a kind of warning lamp that is installed on public security, emergency dealing, the ambulance or rather.

Existing warning lamp, the rotating mechanism that generally comprises lamp socket, lampshade, bulb and constitute by reflective mirror, motor and driving gear set, bulb mostly adopts 12V or 24V storage battery power supply, also useful AC-powered, when bulb was lighted, motor drove driving gear set and makes the reflective mirror rotation, with the light beam split that bulb produced, outside lampshade, can see the rotation flash effect that warning lamp sends, produce warning function.

This warning lamp, structure are complicated, and mechanical rotating mechanism volume is big, and the wearing and tearing of bulb life, carbon brush for motor loss and driving gear set etc. all can cause component failures, and power consumption is big, are difficult for assembling line etc.

The purpose of this utility model is that a kind of simple in structure, long service life of design, power consumption are little, the engineering of good warning effect, traffic warning lamp.

The utility model is made up of warning lamp lamp body and illuminator two parts parts, lamp body is made up of lamp socket and the lampshade that is buckled on the lamp socket of cover, and illuminator comprises that one group is arranged in the high brightness LED on the support outer peripheral face by m * n dot matrix way and controls its control circuit of light on and off in proper order according to certain rules.Control circuit is by power circuit, light-operated circuit, power switch circuit, LED array group scan drive circuit and sequential oscillating circuit are formed, the break-make of light-operated circuit output control power switch circuit, power switch circuit output connects the power end of sequential oscillating circuit and LED array group scan drive circuit by the automatic/hand mode selection switch, another termination power circuit output or the battery output of automatic/hand mode selection switch, LED array group scan drive circuit is the LED array of order light on and off according to certain rules group under the sequential oscillating circuit drives, be subjected to people's the vision and the restriction of memory capability, produce the caution effect of spirality rotation flicker.

Describe technology of the present utility model in detail below in conjunction with the embodiment accompanying drawing.

Accompanying drawing 1 is the warning lamp perspective view.

Accompanying drawing 2 is the warning lamp schematic appearance.

Accompanying drawing 3 is a warning lamp control circuit theory diagram.

Accompanying drawing 4 is a kind of enforcement circuit structure diagram of warning lamp control circuit.

Be the warning lamp lamp socket referring to accompanying drawing 1,24, lampshade 21 can overlap and be buckled on the lamp socket 24, and they are equal Make of transparent material. There is the light emitting diode of one group of high brightness to be arranged in equably on the outer peripheral face of support 22 by m * n dot matrix, support 22 places lamp socket 24 interior location, support 22 can be made into according to lamp body cylindric, also can be made into polyhedral, octahedra support as shown in FIG., on its every one side, a longitudinal arrangement n light emitting diode, laterally arrange m light emitting diode on eight faces, m=n=8 shown in the figure, i.e. L1-L8, L9-L16, L17-L24, L25-L32, L33-L40, L41-L48, L49-L56, L57-L64.

Control LED array group is produced on the circuit board 23 by the control circuit of rule light on and off, also is fixed in the lamp socket 24. Warning lamp after the assembling, its outward appearance can be referring to accompanying drawing 2. When the light emitting diode group in the lampshade under control circuit drives during by certain regular light on and off, outside lampshade, can see the flicker of running, have the light of rotate effect.

Referring to accompanying drawing 3, control circuit comprises power circuit 231, light-operated circuit 232, power switch circuit 233, sequential oscillating circuit 234, scan drive circuit 235,221st, LED array group. During the position, control circuit is operated in automatic mode to automatic/hand mode selection switch K1 as shown among the figure, and the working power of sequential vibration 234, turntable driving 235 two parts circuit is inserted by power switch circuit 233 controls. Only have when ambient light is dim, 232 output signals turn on the power switch circuit, output Vcc1, and sequential oscillating circuit 234, scan drive circuit 235 get electric work. When K1 placed manual position, sequential oscillating circuit and scan drive circuit 234,235 had nothing to do with light-operated circuit 232 and power switch circuit 233 by power circuit 231 power supplies (Vcc).

Accompanying drawing 4 is a kind of enforcement circuit of accompanying drawing 3, and transport and placing device A, resistance R 1-R3 and light-sensitive device D are connected into voltage comparator and constitute light-operated circuit, and light-sensitive device can be photo resistance or optically-coupled metal film field-effect transistor.Triode T then constitutes power switch circuit 233, when illumination is abundant, light-sensitive device D presents low-resistance, T ends, and power switch turn-offs, non-transformer Vcc1, during dim light, light-sensitive device D presents high resistant, and T admittance, power switch out-put supply Vcc1 add to the power end of interior sequential oscillating circuit of frame of broken lines and scan drive circuit 234,235.

Not gate 1-4, capacitor C 1, resistance R 5, R6 are connected into the sequential oscillating circuit, output timing pulse signal gated sweep drive circuit stepwise operation.

The function of scan drive circuit 235 is one group of diode dot matrix 221 of light on and off according to certain rules, can design by flashing mode as required.For example can be designed to all the time successively by predetermined alternately light on and off of way, i.e. the scanning of endless loop also can be designed to have the scanning of the circulation of living of programme-control function, considers low cost etc., and present embodiment has been selected the scanning of endless loop.

In order to produce the effect of spirality rotation flicker, present embodiment is with the 1st and 5 of LED array group among Fig. 1,2 and 6,3 and 7, the light emitting diode of 4 and 8 liang of row respectively is classified as a group, control the luminous tube order light on and off of these 4 groups, in view of the above, can adopt 2 d type flip flops 5,6, be connected into the stepping type sequence controller, nor gate 7-10 is one state in proper order, through the anti-phase driving of not gate, order combustion is gone out, and (L1-L8 only draws among the figure for the luminous tube of each group, the light emitting diode of L33-L40 group), each row light emitting diode can alternately adopt eye-catching red in the enforcement, yellow dichromatism, the illuminator that produces two kinds of colors from top to bottom or from bottom to top, the effect of the rotation flicker of running clockwise or counterclockwise.Change the grouping way of diode dot matrix, the step sequence of change scanning circuit, different scan drive circuit design and flash caution effect thereof can be arranged, these all are basic Logic Circuit Design, repeat no more.The frequency of oscillation that changes the sequential oscillating circuit can be adjusted flash speed improvement flicker effect.

The power circuit 231 of embodiment can adopt ac power supply method also can adopt direct-flow storage battery (E) power supply mode, and K2 is its gauge tap.

The utility model is simple in structure, is illuminator with the light emitting diode, adopts contactless control mode, thus long service life, little power consumption, good warning effect.The manual work mode that is subjected to the automatic working method of the bright dark control of ambient light and all can warns round the clock makes product have better result of use.

Claims

1, a kind of engineering or traffic warning lamp, by lamp socket, cover be buckled in the lampshade on the lamp socket and place in the lamp socket, the illuminator that can produce warning function forms, it is characterized in that: described illuminator comprises in the high brightness LED dot matrix group of arranging by m * n and the control dot matrix group light emitting diode control circuit of light on and off in proper order according to certain rules.

2, engineering according to claim 1 or traffic warning lamp, it is characterized in that described control circuit comprises the scan drive circuit of power circuit, light-operated circuit, power switch circuit, sequential oscillating circuit and LED array group, the break-make of light-operated circuit output control power switch circuit, power switch circuit is exported the power end that connects sequential oscillating circuit and LED array group scan drive circuit by the automatic/hand mode selection switch, another termination power circuit output or the battery output of automatic/hand mode selection switch.