CN2305735Y

CN2305735Y - Improved sign distinguishing lamp

Info

Publication number: CN2305735Y
Application number: CN 97206886
Authority: CN
Inventors: 刘申永; 凌云; 林子忱
Original assignee: Xinhe Design & Manufacturing Corp Shanghai
Current assignee: Xinhe Design & Manufacturing Corp Shanghai
Priority date: 1997-03-31
Filing date: 1997-03-31
Publication date: 1999-01-27
Anticipated expiration: 2007-03-31

Abstract

The utility model discloses an improved sign distinguishing lamp which relates to a light signal device which takes municipal power as power source, solving the problem that an existing sign distinguishing lamp with similar purposes has the defects of short life, no shock resistance, difficult fault discovering, no safety, etc. The utility model is also characterized in that the sign distinguishing lamp has the advantages of simple and reliable structure, easy installation, strong ability of voltage fluctuation withstanding, fault indication, and normal work maintaining during fault, applied to a police station, the sign of a police pavilion, a flash alarm, and the power supply indication of a travelling crane which does not allow operating intermittently, etc. The utility model can also be used for the danger indication of the obstructions of repairing a road, digging a channel, lacking the cover of a trap, etc.

Description

Improved landmark identification lamp

The utility model relates to a kind of improved optical signal device, particularly a kind of long-life landmark identification lamp with city's power supply.

The landmark identification lamp of existing similar purposes is many to be light source with the incandescent lamp, and only be 1000 hours normal uses serviceable life of incandescent lamp, shake or the voltage fluctuation following life-span of environmental baseline shorter.Use lamp, filament to break as indication and be difficult to realize, have electric quilt mistake often to be had a strong impact on safety for no electricity, and generally lamp body all is contained in eminence, the people is difficult for the place of arrival, has more increased the trouble of overhauling.As overcome above-mentioned indication error with two groups of lamp parallel connections, bring equipment huge thereupon, observe shortcoming such as not obvious and be difficult to overcome.

Though also have with the light emitting diode at present is the landmark identification lamp appearance of power supply, because structure and electrical design are owed week, difficulty is installed, and most products only adopt the transformer step-down to power to the light emitting diode of parallel connection; Not only increase lamp body weight, the current capacity of light emitting diode can not make full use of, this is because the characteristic of light emitting diode, little voltage fluctuation promptly can be directed at big electric current and change, electric current increased sharply and burns element when these products raise for fear of voltage, venerate under the rated voltage and can be equipped with electric current less than normal, so that it is dull unable that voltage seems when reducing, lumination of light emitting diode point is less in addition, form matrix and form light-emitting area, light emitting diode must be arranged closely, otherwise vision is loose, light emitting diode is big, and cost is also high.

The purpose of this utility model provides a kind of easy for installation, profile is small and exquisite, substitute older generation's product easily, vibration resistance, life-span is long, circuit is simple, utilize less light-emitting component can draw approximate area source, meet orientation and the landmark identification lamp device of certain scattering angle light distribution requirements is arranged, also can make can stroboscopic or the product of two sets in parallel operation, one group of damage of the latter, another group still can operate as normal, and provide obvious distinguishing mark, and overcome the unapproachable effect of above-mentioned incandescent lamp, can be at rated voltage 50%～110% scope inner height trouble free service, this device is installed with standard lamp head, can substitute the landmark identification that is used for of older generation's incandescent lamp bulb immediately.

Task of the present utility model is finished with following method, and each light-emitting component of dot matrix LEDs is moulded casting among the corresponding units of lens plate, and the lens unit refraction of gathering forms light-emitting area, satisfies directed and the light distribution requirements of certain scattering angle is arranged; Power supply and string have the electric capacity of resistance and full-wave rectification bridge that the light emitting diode of series connection is powered; Capacitance current-limiting is compared with general used resistance current limliting, and the former avoids easily because of current/voltage fluctuation causes light-emitting component dull or burn, and electric capacity does not generate heat energy-conservation safety again; Parallel-series resistance can limit the rush of current that at every turn powers on to light-emitting component; Therefore the utility model can overcome the anxiety that prior art is burnt light-emitting component because of mains fluctuations or frequent power on/off, this device can utilize the integrated circuit (IC) chip that the rectifier bridge of light-emitting component power supply is had control light-emitting diode flash function for utility power is equipped with, control the light-emitting component of this device, make the stroboscopic signal.All said modules, electronic devices and components are sealed in the same plastic casing, are equipped with standard socket or screw socket, can be designed to just to penetrate or pattern that side is penetrated, for purposes such as traffic signals, public sign, flash of light warning against danger and power supply indications.

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

Fig. 1 is that present embodiment 1 is just being penetrated the formula structural drawing.

Fig. 2 is present embodiment 2 lateral type structural drawing.

Fig. 3 is the electric circuit diagram (civil power is a power supply, single group light-emitting component, stroboscopic) that this programme is implemented.

With reference to Fig. 1, Fig. 2, some light emitting diodes (1) are moulded casting among the corresponding units of lens plate (2), each unit is the cone of hemisphere termination, light spot position is in about two the radius of sphericity parts apart from the spheroid end points, the big end of cone is tangent with the big end of adjacent cells cone as far as possible, make the uniform one-tenth light-emitting area of light, satisfy directed and the light distribution requirements of certain scattering angle is arranged, together with each capacitance resistance of feed circuit (3), rectifier bridge element and stroboscopic control circuit (4) element are encapsulated in the plastic casing (6) that has standard screw socket or socket lamp holder (5) together.

With reference to Fig. 3, power supply by and string have and prevent that rush of current resistance (3-1) current limiting capacitance (3-3) and full-wave rectification bridge (3-4) (3-2) from powering to the light emitting diode (1) of series connection, light emitting diode (1) series connection, insert control triode (4-1) between negative terminal and rectifier bridge (3-4), its base current is had integrated circuit (IC) chip (4-2) shunting of stroboscopic control function off and on, integrated circuit (IC) chip (4-2) obtains suitable chip operating voltage and suitable triode (4-1) base current by resistance (4-3) preparation (4-4).

As long as lamp holder is revolved people's standard lamp socket, insert civil power and just can work during use.

Claims

1, landmark identification lamp device that has light emitting diode (1), lens plate (2), shell (6), lamp holder (5), feed circuit (3), stroboscopic circuit (4) to form is characterized in that some light emitting diodes (1) mould casting among the corresponding units of lens plate (2).Each unit is the pommel cone.Light spot position is in about two radius of sphericity parts apart from the pommel.Each lens unit gathers on plate, refraction forms light-emitting area, satisfy directed and the light distribution requirements of certain scattering angle arranged, connect full-wave rectification bridge (3-4) behind light emitting diode (1) polyphone, again through and string has resistance (3-1) limiting capacitor (3-3) (3-2) to connect to lamp holder (5).

2,, it is characterized in that light emitting diode (1) also can be furnished with a stroboscopic circuit (4) by the landmark identification lamp device of claim 1 regulation.The stroboscopic circuit can adopt the integrated circuit (IC) chip (4-2) with one or two LED flash function of control, and its power supply is taken from rectifier bridge (3-4) through resistance (4-3) step-down.Insert control triode (4-1) between the negative terminal of the light-emitting diode group (1) of series connection and rectifier bridge (3-4), its base stage connects the light emitting diode control end of chip (4-2), and connects chip (4-2) anode through current-limiting resistance (4-4).

3, by the landmark identification lamp device of claim 1 regulation, it is characterized in that light emitting diode (1), lens plate (2), feed circuit (3) and stroboscopic circuit (4) are encapsulated in the shell (6) that has standard lamp head (5).