CN205546047U - LED power supply - Google Patents

Abstract

The utility model discloses a LED power supply. Invent for solving the short problem of current LED lamp pipe life. Include first power supply unit and a second supply unit and a control by temperature change unit to the LED power supply, wherein, when the operating temperature of first power supply unit is less than the predetermined temperature, the control by temperature change unit make first power supply unit supply power to LED, when the operating temperature of first power supply unit is higher than the predetermined temperature, the control by temperature change unit make second supply unit supply power to LED. After adopting above -mentioned structure, LED power supply's temperature when one of them power supply unit temperature is higher, is then started another power supply unit and is supplied power to LED in can real -time monitoring fluorescent tube. Like this as long as distribute two power supply units at the both ends of fluorescent tube, two power supply unit exchange work, the heat of its production influences each other lessly and comparatively dispersed, just so can the intraductal temperature of better ground control lamp.

Description

LED power

Technical field

The utility model relates to a kind of LED power.

Background technology

Traditional fluorescent tube is respectively arranged with a filament also known as fluorescent lamp, lamp two ends, is filled with the argon of trace and thin mercury vapour in fluorescent tube, and tube inner wall scribbles fluorescent material, sends ultraviolet, make fluorescent material send visible ray during gaseous conduction between two filaments.Due to containing heavy metal pollutants " mercury " so that the fluorescent tube scrapped is extremely serious to the pollution of environment.And LED lamp tube uses light emitting diode as light source, light efficiency is higher, the most energy-conservation, service life is longer, and more environmental protection.Become the ideal product of current stage replacement fluorescent tube.

Existing LED lamp tube and traditional fluorescent lamp on overall dimensions bore all as, so can realize the perfect replacement of LED lamp tube and traditional fluorescent lamp.But owing to the operation principle of two kinds of fluorescent tubes is different, the structure therefore causing LED lamp tube is complex.

Owing to LED lamp bead is direct current supply, and the supply voltage of single lamp bead only has 1.5 volts, so, in order to preferably realize the power supply of LED lamp tube, it usually needs LED lamp bead after power supply and multiple series and parallel be contained in fluorescent tube.The LED lamp tube of this structure is installed very simple, is taken off by original fluorescent lamp and changes LED lamp tube, and ballast and starter are removed, allow 220V electric main be applied directly to LED lamp tube two ends during installation.

But, it is provided with LED power in the fluorescent tube of this structure simultaneously, and single LED power will inevitably create substantial amounts of heat along with the growth of working time in the course of the work, and the life-span of LED is produced serious influence by heat.The most common LED power can make the life-span of LED lamp tube reduce, and owing to the radiating condition of fluorescent tube own is poor, the most how to control produced heat in the LED power course of work and become engineer's difficult problem with the life-span extending LED lamp tube.

Summary of the invention

For overcoming drawbacks described above, the purpose of this utility model is to provide a kind of LED power that can extend LED lamp tube life-span heat.

For reaching above-mentioned purpose, LED power of the present utility model, including to the first power supply unit of same LED statements based on collusion electricity and the second power supply unit and a temperature conditioning unit；Wherein, when the operating temperature of the first power supply unit is less than predetermined temperature, described temperature conditioning unit makes the first power supply unit to LED statements based on collusion electricity, and when the operating temperature of the first power supply unit is higher than predetermined temperature, described temperature conditioning unit makes the second power supply unit to LED statements based on collusion electricity.

Wherein, described temperature conditioning unit is thermal relay；Wherein, described thermal relay includes the first stationary electrode, the second stationary electrode and moving electrode, and when the operating temperature of the first power supply unit is less than predetermined temperature, the first described stationary electrode turns on moving electrode, described temperature conditioning unit is made to make the first power supply unit to LED statements based on collusion electricity

When the operating temperature of the first power supply unit is higher than predetermined temperature, the second described stationary electrode turns on moving electrode, makes described temperature conditioning unit make the second power supply unit to LED statements based on collusion electricity；

Wherein, described moving electrode is bimetal leaf.

Wherein, nearly first power supply unit of described thermal relay is arranged.

For reaching above-mentioned purpose, LED power of the present utility model, including to the first power supply unit of same LED statements based on collusion electricity and the second power supply unit and a temp controlled delay unit；Wherein, when the operating temperature of the first power supply unit is less than predetermined temperature, described temp controlled delay unit makes the first power supply unit to LED statements based on collusion electricity；When the operating temperature of the first power supply unit is higher than predetermined temperature, described temp controlled delay unit make the second power supply unit to LED statements based on collusion electricity to the scheduled time, and make after the scheduled time the first power supply unit to LED statements based on collusion electricity arriving.

Wherein, described temp controlled delay unit

Including: thermoswitch, delay circuit and relay；Wherein,

Thermoswitch, is connected to starting delay circuit on delay circuit,

Delay circuit, for starting signal when starting to relay output one, and lasts till the scheduled time；

Relay, is connected to the output of delay circuit；Described relay is when receiving the signal of delay circuit output, and described relay conducting is so that the second power supply unit is to LED statements based on collusion electricity, and after reaching the scheduled time, described relay disconnects so that the first power supply unit is to LED statements based on collusion electricity.

Wherein, described delay circuit is made up of 555 integrated circuits.

After using said structure, the temperature of LED power in monitoring fluorescent tube that can be real-time, when one of them power supply unit temperature is higher, then start another power supply unit to LED statements based on collusion electricity.As long as two power supply units are so distributed in the two ends of fluorescent tube, two power supply unit exchange work, its heat produced influences each other less and more disperses, and thus can preferably control the temperature in fluorescent tube.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model first embodiment.

Fig. 2 is the structural representation of thermal relay in the utility model first embodiment.

Fig. 3 is the state diagram after thermal relay shown in Fig. 2 reaches predetermined temperature.

Fig. 4 is the structural representation of the utility model the second embodiment.

Fig. 5 is the structural representation of delay circuit in the utility model the second embodiment.

Detailed description of the invention

With embodiment, the utility model is further described below in conjunction with the accompanying drawings.

Embodiment 1

Fig. 1 is the structural representation of the present embodiment.LED power of the present utility model, including to the first power supply unit of same LED statements based on collusion electricity and the second power supply unit and a temperature conditioning unit；Wherein, when the operating temperature of the first power supply unit is less than predetermined temperature, described temperature conditioning unit makes the first power supply unit to LED statements based on collusion electricity, and when the operating temperature of the first power supply unit is higher than predetermined temperature, described temperature conditioning unit makes the second power supply unit to LED statements based on collusion electricity.

In Fig. 1, the temperature of monitoring the first power supply unit that temperature conditioning unit is real-time, when its temperature is higher, then start the second power supply unit to LED statements based on collusion electricity.Two such power supply unit exchange work, its heat produced influences each other less and more disperses, and therefore can preferably control the temperature in fluorescent tube.

Fig. 2 and Fig. 3 show the one of temperature conditioning unit, i.e. thermal relay；As shown in the figure, thermal relay includes being positioned at first stationary electrode in left side, second stationary electrode on right side and being positioned at the moving electrode of centre, when the operating temperature of the first power supply unit is less than predetermined temperature, the first described stationary electrode turns on moving electrode, described temperature conditioning unit is made to make the first power supply unit to LED statements based on collusion electricity, when the operating temperature of the first power supply unit is higher than predetermined temperature, the second described stationary electrode turns on moving electrode, makes described temperature conditioning unit make the second power supply unit to LED statements based on collusion electricity；Wherein, described moving electrode is bimetal leaf.

Embodiment 2

Fig. 4 is the structural representation of the present embodiment.The present embodiment includes the first power supply unit to same LED statements based on collusion electricity and the second power supply unit and a temp controlled delay unit；Wherein, when the operating temperature of the first power supply unit is less than predetermined temperature, described temp controlled delay unit makes the first power supply unit to LED statements based on collusion electricity；When the operating temperature of the first power supply unit is higher than predetermined temperature, described temp controlled delay unit make the second power supply unit to LED statements based on collusion electricity to the scheduled time, and make after the scheduled time the first power supply unit to LED statements based on collusion electricity arriving.

Wherein, described temp controlled delay unit

Including: thermoswitch, delay circuit and relay；Wherein,

Thermoswitch, is connected to starting delay circuit on delay circuit,

Delay circuit, for exporting an enabling signal when starting to relay, and lasts till the scheduled time；

Relay, is connected to the output of delay circuit；Described relay is when receiving the signal prolonging circuit output, and described relay conducting is so that the second power supply unit is to LED statements based on collusion electricity, and after reaching the scheduled time, described relay disconnects so that the first power supply unit is to LED statements based on collusion electricity.

Wherein, above-mentioned delay circuit can be various delay circuit, the delay circuit of 555 integrated circuit compositions as shown in Figure 5, wherein, 555 integrated circuits totally 8 pins, pin 1,2,3,4,5,6,7 and 8 as shown in Figure 1.Wherein, switch K thermoswitch.When thermoswitch is not closed, delay circuit is original state, and relay J is failure to actuate, and the normally closed interlock in relay makes the first power supply unit to LED statements based on collusion electricity；When in the first power supply unit course of work, heating is to predetermined temperature, thermoswitch closes, the power supply in delay circuit is made to be charged to capacitor C by resistor R2, now, relay J switches, making the first power supply unit stop to LED statements based on collusion electricity, the first power supply unit is in no-load operation state, will not produce bigger heat；Second power supply unit then starts to LED statements based on collusion electricity；Along with capacitor C constantly charges so that the current potential of 6 pin constantly raises, when the current potential of 6 pin is raised to the current potential of 5 pin, circuit reset, timing terminates, and relay is returned to original state, so that the first power supply unit is to LED statements based on collusion electricity.Owing to diode VD1 makes 5 pin current potentials rise on 5 pin strings, therefore it is provided with the timing of longer time.

After using said structure, in monitoring fluorescent tube that can be real-time, the temperature of LED power, when one of them power supply unit temperature is higher, then plays another power supply unit.As long as two power supply units are so distributed in the two ends of fluorescent tube, two power supply unit exchange work, its heat produced influences each other less and more disperses, and thus can preferably control the temperature in fluorescent tube.

Above; it is only preferred embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that the utility model discloses; the change that can readily occur in or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim is defined.

Claims (6)

1. a LED power, it is characterised in that include the first power supply unit to same LED statements based on collusion electricity and the second power supply unit and a temperature conditioning unit；Wherein, when the operating temperature of the first power supply unit is less than predetermined temperature, described temperature conditioning unit makes the first power supply unit power to LED, and when the operating temperature of the first power supply unit is higher than predetermined temperature, described temperature conditioning unit makes the second power supply unit power to LED.

2. LED power as claimed in claim 1, it is characterised in that described temperature conditioning unit is thermal relay；Wherein, described thermal relay includes the first stationary electrode, the second stationary electrode and moving electrode, and when the operating temperature of the first power supply unit is less than predetermined temperature, the first described stationary electrode turns on moving electrode, described temperature conditioning unit is made to make the first power supply unit to LED statements based on collusion electricity

When the operating temperature of the first power supply unit is higher than predetermined temperature, the second described stationary electrode turns on moving electrode, makes described temperature conditioning unit make the second power supply unit to LED statements based on collusion electricity；

Wherein, described moving electrode is bimetal leaf.

3. LED power as claimed in claim 2, it is characterised in that nearly first power supply unit of described thermal relay is arranged.

4. a LED power, it is characterised in that include the first power supply unit to same LED statements based on collusion electricity and the second power supply unit and a temp controlled delay unit；Wherein, when the operating temperature of the first power supply unit is less than predetermined temperature, described temp controlled delay unit makes the first power supply unit to LED statements based on collusion electricity；When the operating temperature of the first power supply unit is higher than predetermined temperature, described temp controlled delay unit make the second power supply unit to LED statements based on collusion electricity to the scheduled time, and make after the scheduled time the first power supply unit to LED statements based on collusion electricity arriving.

5. LED power as claimed in claim 4, it is characterised in that described temp controlled delay unit

Including: thermoswitch, delay circuit and relay；Wherein,

Thermoswitch, is connected to starting delay circuit on delay circuit,

Delay circuit, for starting signal when starting to relay output one, and lasts till the scheduled time；

Relay, is connected to the output of delay circuit；Described relay is when receiving the signal of delay circuit output, and described relay conducting is so that the second power supply unit is to LED statements based on collusion electricity, and after reaching the scheduled time, described relay disconnects so that the first power supply unit is to LED statements based on collusion electricity.

6. LED power as claimed in claim 5, it is characterised in that described delay circuit is made up of 555 integrated circuits.