CN2717090Y

CN2717090Y - Lighting arrangement

Info

Publication number: CN2717090Y
Application number: CNU2003201021394U
Authority: CN
Inventors: 高永华
Original assignee: YUCHEN ELECTRONIC DEVELOPMENT Co Ltd
Current assignee: YUCHEN ELECTRONIC DEVELOPMENT Co Ltd; Everspring Industry Co Ltd
Priority date: 2003-10-27
Filing date: 2003-10-27
Publication date: 2005-08-10
Anticipated expiration: 2013-10-27

Abstract

The utility model discloses a lighting device. By redesigning the electric power supply unit and the lighting component, the lighting device has the electric power self-support ability and saves the electricity. The device adopts a solar battery and an accumulator as the major component of the electric power supply unit and adopts a cold cathode tube with low electrical power consumption as the lighting component. A starting lighting unit is used to detect the day and night variation of the environment. When night is coming or the brightness of the environment is darkling, the starting lighting unit drives the lighting unit to brighten by selectively cooperating with a starting mechanism intruding the detecting unit to provide the anti-theft and lighting function.

Description

Lighting device

Technical field

The utility model relates to a kind of lighting device, particularly a kind ofly utilizes solar cell and storage battery self-supporting power supply, and adopts the lighting device of energy-conservation cold cathode fluorescent lamp illumination.

Background technology

The operating principle of antitheft warning device generally all is to utilize various detecing element detectings whether the invasion of foreign body is arranged, the signal that gives a warning of the form by sound or light whether with decision, reach antitheft with frighten the purpose of resistance, and known detecing element comprises two kinds of contact-type and noncontact shapes, wherein contact-type as shock sensor, non-contact type as infrared ray sensor.

The application of infrared ray (Infrared) on burglary-resisting system, can divide into active infra-red line (inductor itself can be launched infrared light beam with the detecting movement of objects), with passive infrared PIR (inductor itself can not launched infrared light beam, but moves the triggering inductor by the thermal source of object).

Traditional anti-theft warning device, generally speaking the function that does not possess illumination, its major part all is to give a warning with the powerful sound, but disclosed a kind of device that has power failure Emergency Light and infrared human body induction concurrently No. 316701 at approved Taiwan patent announcement, this is a kind of design of automatically actuated mechanism and emergency lighting device with the ultrared sensing human body of having integrated in brief, automatically start the function of illumination when having a power failure, also can when detecting mobile thing, utilize the storage battery of establishing in the emergency lighting device to provide illumination required electric energy except keeping; In this part known technology, also designed a photo resistance in order to detecting environment light and shade condition,, in time provide illumination functions so that cooperate the variation of ambient brightness.

Though this known devices can use storage battery to supply with the required electric power of running, its main power source does not possess the self-centered function of electric power fully still based on civil power, does not see the design that discloses any protection over-charging of battery yet; Its illumination component that is adopted that throws light on also is general electric light or bulb on the other hand, and power consumption is more.

The utility model content

Main purpose of the present utility model is to provide a kind of lighting device that possesses the self-sufficient function of electric power.

The utility model has redesigned the electric power feed unit of lighting device, adopts solar cell and the storage battery main element as the electric power feed unit, is that electric power is for utilization with the transform light energy of external environment.

Another purpose of the present utility model is to provide a kind of lighting device of power saving; This device adopts the low cold cathode fluorescent lamp (CCFL) of power consumption as illumination component, except power saving also has the low advantage of heating.

Another preferred embodiment of the present utility model, the unit of the output voltage by detecting solar cell judge that the light and shade of external environment changes, and determines to start the preferable opportunity of illumination with this.

Description of drawings

Fig. 1 is the circuit block diagram of first kind of embodiment of the present utility model.

Fig. 2-1,2-2 are the corresponding circuit diagrams of circuit block diagram shown in Figure 1.

Fig. 3 is the circuit block diagram of another kind of embodiment of the present utility model.

Fig. 4-1,4-2,4-3,4-4 are the corresponding circuit diagrams of circuit block diagram shown in Figure 3.

Embodiment

Relevant preferred embodiment of the present utility model and detailed technology content, existing accompanying drawings is as follows.

At first see also Fig. 1, be the circuit block diagram of first kind of preferable enforcement of the present utility model, its corresponding circuit diagram is then shown in Fig. 2-1,2-2; Function according to its element can be divided into:

The electric power feed unit comprises solar cell 10, storage battery 20 and storage battery overvoltage protection unit 30;

Lighting unit comprises a cold cathode fluorescent lamp 50 and a cold cathode fluorescent lamp driver element 60; And

Start lighting unit 40.

The function of existing this each element of lighting device of accompanying drawings, this lighting device comprises:

One solar cell 10 is in order to be electric energy with transform light energy, to produce the required electric power of lighting device;

One storage battery 20 is connected with solar cell 10 by the charging circuit of being controlled by one first contactor 21 (as transistor switch) 22, in order to store the electric power that solar cell 10 is produced;

One storage battery overvoltage protection unit 30 in order to detect the magnitude of voltage of storage battery 20, drives first contactor 21 and cuts off charging circuit 22, in order to avoid storage battery 20 is impaired when storage battery 20 overcharges;

One cold cathode fluorescent lamp 50 is in order to provide illumination required light;

One cold cathode fluorescent lamp driver element 60 is connected with storage battery 20 by a second circuit switch 61 (as transistor switch), and is shinny in order to drive cold cathode fluorescent lamp 50; And

One starts the unit 40 of illumination, mainly be after detecting the ambient brightness deepening, and the voltage of storage battery 20 still maintains under the condition of normal range of operation when still sufficient (be exactly in brief the electric power of storage battery 20), make circuit turn-on by driving second circuit switch 61, it is shinny to start cold cathode fluorescent lamp driver element 60 driving cold cathode fluorescent lamp 50.

Aforesaid startup lighting unit 40 comprises:

One logic controller 43, preferred embodiment shown in the figure is to use with door and realizes, this logic controller 43 determines that according to the signal of two inputs whether driving second circuit switch 61 makes circuit turn-on, thereby it is shinny to make cold cathode fluorescent lamp driver element 60 drive cold cathode fluorescent lamp 50;

One ambient brightness detecting unit 41, basically be exactly a checking circuit that detects the output voltage of solar cell, the brightness of judging present environment by the output voltage of detecting solar cell 10 changes, if the brightness deepening of environment in theory, the output voltage values of solar cell 10 should descend, so this ambient brightness detecting unit 41 just can produce one of signal of two required inputs of aforementioned logic controller 43 when the ambient brightness deepening; And

One storage battery low-voltage detecting unit 42, operating voltage in order to detecting storage battery 20, and under the normal condition of the operating voltage of storage battery 20, produce another required input signal of aforementioned logic controller 43, so that and the signal that produced of ambient brightness detecting unit 41 drives second circuit switch 61 together and makes circuit turn-on, and then lights cold cathode fluorescent lamp 50.

Therefore, if ambient brightness as yet not when the deepening or the undertension of storage battery 20, all deficiency is so that cold cathode fluorescent lamp 50 is shinny.

Seeing also Fig. 3 again, is the circuit block diagram of another kind of preferred embodiment of the present utility model, and its corresponding circuit diagram is then shown in Fig. 4-1,4-2,4-3,4-4; Be to be basic framework and to have integrated the intrusion detecting unit among this embodiment with above-mentioned first kind of embodiment, but aforementioned startup lighting unit 40 variations are become the another kind of lighting unit 40 ' that starts, and this starts lighting unit 40 ' and is made up of a passive infrared circuit for detecting 70, a delay circuit 72 and a photo resistance circuit for detecting 71.

Wherein passive infrared circuit for detecting 70 and photo resistance circuit for detecting 71 are in order to produce two required input signals of logic controller 43, just when ambient brightness deepening and passive infrared circuit for detecting 70 have detected personnel movement, just can make circuit turn-on, thereby make cold cathode fluorescent lamp 50 shinny by driving second circuit switch 61.On the other hand, passive infrared circuit for detecting 70 and photo resistance circuit for detecting 71, provide the electric power of burning voltage by a voltage stabilizing control unit (voltage stabilizing IC) 73, and voltage stabilizing control unit 73 is under the normal condition of the operating voltage of storage battery 20, by storage battery low-voltage detecting unit 42 activations (enable) and to passive infrared circuit for detecting 70 and photo resistance circuit for detecting 71 supply capabilities.

As for 43 of logic controllers is shinny by a delay circuit 72 and then startup cold cathode fluorescent lamp driver element 60 driving cold cathode fluorescent lamp 50, and the function of delay circuit 72 mainly is to make cold cathode fluorescent lamp 50 prolong the time of lighting, for example after not having personnel movement, extinguish again after still making cold cathode fluorescent lamp 50 slightly prolong a bit of time.

The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.

Claims

1. lighting device is characterized in that described lighting device comprises:

One solar cell (10) is in order to be electric energy with transform light energy, to produce the required electric power of lighting device;

One storage battery (20) is connected with described solar cell (10), in order to store the electric power that described solar cell (10) is produced;

One cold cathode fluorescent lamp (50) is in order to provide illumination required light;

One cold cathode fluorescent lamp driver element (60) is connected with described storage battery (20) by a second circuit switch (61), and is shinny in order to drive described cold cathode fluorescent lamp (50).

2. lighting device according to claim 1 is characterized in that described lighting device also comprises:

One starts lighting unit (40), comprise: an ambient brightness detecting unit (41) changes in order to the brightness that detects present environment, an and logic controller (43), operating voltage at described storage battery (20) is normally following, the result that detects according to described ambient brightness detecting unit (41) starts described second circuit switch (61) by described logic controller (43), and then lights described cold cathode fluorescent lamp (50).

3. lighting device according to claim 1; it is characterized in that also comprising: a storage battery overvoltage protection unit (30); in order to detect the magnitude of voltage of described storage battery (20);, drive one first contactor (21) and cut off the charging circuit (22) that described storage battery (20) is charged when overcharging at described storage battery (20).

4. lighting device according to claim 1 is characterized in that, described ambient brightness detecting unit (41) is a kind of checking circuit that detects the output voltage of solar cell (10).

5. lighting device according to claim 1, it is characterized in that also comprising: a storage battery low-voltage detecting unit (42), under the normal condition of operating voltage of described storage battery (20), control described logic controller (43) driving described second circuit switch (61) together with the signal that described ambient brightness detecting unit (41) is produced, and then light described cold cathode fluorescent lamp (50).

6. lighting device according to claim 1 is characterized in that, the ambient brightness detecting unit of described startup lighting unit (40 ') is a photo resistance circuit for detecting (71).

7. lighting device according to claim 6 is characterized in that, the unit of described startup illumination also comprises a passive infrared circuit for detecting (70), drives described logic controller (43) with described photo resistance circuit for detecting (71).

8. lighting device according to claim 7, it is characterized in that also comprising: a storage battery low-voltage detecting unit (42) drives described passive infrared circuit for detecting (70) and described photo resistance circuit for detecting (71) under the normal condition of operating voltage of described storage battery (20).

9. lighting device according to claim 7, it is characterized in that described storage battery low-voltage detecting unit (42) is supplied with described passive infrared circuit for detecting (70) and the required electric power of described photo resistance circuit for detecting (71) running by activation one voltage stabilizing control unit (73).

10. lighting device according to claim 7, it is characterized in that also comprising: a delay circuit (72), it is started by described logic controller (43) and controls described second circuit switch (61) and light described cold cathode fluorescent lamp (50), and described cold cathode fluorescent lamp (50) is extinguished after prolongation a period of time again.