CN213991104U

CN213991104U - Driving power supply of safe constant-current brightness-adjustable lamp strip

Info

Publication number: CN213991104U
Application number: CN202120018261.1U
Authority: CN
Inventors: 朱华亮; 胡水良; 朱晓东
Original assignee: Zhongshan Jiayuxing Lighting Technology Co ltd
Current assignee: Zhongshan Jiayuxing Lighting Technology Co ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-08-17
Anticipated expiration: 2031-01-04

Abstract

The utility model provides a driving power supply of a safe constant-current adjustable-brightness lamp belt, which comprises a commercial power input unit, a switch power supply unit, a transformer unit, a voltage conversion and adjustment unit, a constant-current output unit, an accelerated start unit, a voltage feedback unit and a commercial power indication unit; the commercial power input unit is electrically connected with the transformer unit and the voltage conversion and regulation unit; the transformer unit is electrically connected with the constant current output unit and the commercial power indicating unit; the voltage conversion and regulation unit is electrically connected with the switching power supply unit, the acceleration starting unit and the voltage feedback unit; the constant current output unit is electrically connected with the voltage feedback unit; the acceleration starting unit is electrically connected with the switching power supply unit and the voltage feedback unit. The utility model provides a drive power supply in safe constant current adjustable luminance lamp area converts the commercial power into the direct current of low pressure through setting up voltage conversion unit for the inside voltage in lamp area is safe voltage, and then makes the lamp area need not the insulating layer and covers and can the safe handling.

Description

Driving power supply of safe constant-current brightness-adjustable lamp strip

Technical Field

The utility model relates to a lighting lamp area technical field especially relates to a drive power supply in adjustable luminance lamp area of safe constant current.

Background

At present, among the prior art, the high-voltage lamp area is directly inserted the commercial power and is used, and because general high-voltage lamp area inside voltage is high, must use insulating material to cover and form the insulating layer and insulating layer thickness is great outside high-voltage lamp area for lamp area volume and weight increase cause the installation trouble. When the insulating layer is used, the insulating layer is damaged and aged, so that accidents are caused, and the safety problem exists. Along with high-voltage lamp area length increase, the uneven condition of luminance can appear, influences the illuminating effect, can not adjust illumination brightness according to service environment's demand moreover, can not satisfy user's user demand.

Therefore, it is desirable to provide a driving power supply for a safe constant-current adjustable-brightness light strip to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a drive power supply in adjustable luminance lamp area of safe constant current, converts commercial power into the direct current of low pressure through setting up voltage conversion unit for the inside voltage in lamp area is safe voltage, and then makes the lamp area need not the insulating layer cover and can the safe handling.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a driving power supply for a safe constant-current adjustable brightness light band, which includes a mains supply input unit 10, a switching power supply unit 20, a transformer unit 30, a voltage conversion and adjustment unit 40, a constant-current output unit 50, an accelerated start unit 60, a voltage feedback unit 70, and a mains supply indication unit 80;

the commercial power input unit 10 is electrically connected with the transformer unit 30 and the voltage conversion and regulation unit 40; the transformer unit 30 is electrically connected with the constant current output unit 50 and the commercial power indicating unit 80; the voltage conversion and regulation unit 40 is electrically connected with the switching power supply unit 20, the acceleration starting unit 60 and the voltage feedback unit 70; the constant current output unit 50 is electrically connected with the voltage feedback unit 70; the acceleration starting unit 60 is electrically connected to the switching power supply unit 20 and the voltage feedback unit 70; the voltage feedback unit 70 is electrically connected to the utility indication unit 80.

In the examples, it is preferred that: the voltage converting and regulating unit 40 includes an eight-pin power conversion control chip U1 of model NCP1200D 1.

In the examples, it is preferred that: the voltage feedback unit 70 comprises a first photocoupler U2 with a four-pin model P181, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a thirteenth capacitor C13, a sixteenth electrolytic capacitor CJ16 and a seventh diode U7;

the emitter of the first photocoupler U2 is grounded, the collector is connected with the acceleration starting unit 60 and the voltage conversion and adjustment unit 40, the anode is connected with one end of the twenty-second resistor R22 and the twenty-fourth resistor R24, the cathode is connected with the cathode of the seventh diode U7, the anode of the seventh diode U7 is grounded, the cathode is connected with the other end of the twenty-second resistor R22, the cathode of the seventh diode U7 is connected with one end of the thirteenth capacitor C13 and the anode of the sixteenth electrolytic capacitor CJ16, the other end of the thirteenth capacitor C13 and the cathode of the sixteenth electrolytic capacitor CJ16 are connected with one end of the twenty-third resistor R23, the other end of the twenty-third resistor R23 is connected with one end of the twenty-fifth resistor R25 and the twenty-sixth resistor R26, the other ends of the twenty-fourth resistor R24 and the twenty-fifth resistor R25 are connected with the constant current output unit 50, and the one end of the twenty-sixth resistor R26 is connected with the constant current output unit 50 and the other end is grounded.

The utility model has the advantages that:

(1) the voltage conversion unit is arranged to convert commercial power into low-voltage direct current, so that the voltage inside the lamp strip is safe, and the lamp strip can be safely used without being covered by an insulating layer;

(2) the constant current unit is arranged to enable the current flowing through the LED unit to be constant, so that the luminous brightness of the LED unit is uniform, and meanwhile, the current flowing through the LED unit is adjusted through the brightness adjusting unit, so that a user can adjust the luminous brightness of the LED unit according to the use condition requirement;

(3) the high-voltage lamp area of adjustable luminance of safe constant current, it can need not the insulating layer and can directly insert commercial power safe handling to uneven problem of luminance can not appear, can adjust illumination luminance according to the user's demand simultaneously.

Drawings

Fig. 1 is a schematic circuit block diagram of a first preferred embodiment of a driving power supply of a safe constant-current adjustable-brightness lamp strip according to the present invention;

fig. 2 and 3 are schematic circuit configurations of a part of the units in the functional block diagram shown in fig. 1.

The numerical designations in the drawings of the specification correspond to the following component names, respectively:

10-mains supply input unit; 20-a switching power supply unit; 30-a transformer unit; 40-a voltage conversion and regulation unit; 50-constant current output unit; 60-an accelerated start unit; 70-a voltage feedback unit; 80-commercial power indication unit.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the drawings.

Referring to fig. 1 to fig. 3, the driving power supply of the safe constant-current adjustable brightness lamp strip of the present embodiment includes a commercial power input unit 10, a switching power supply unit 20, a transformer unit 30, a voltage conversion and adjustment unit 40, a constant-current output unit 50, an acceleration start unit 60, a voltage feedback unit 70, and a commercial power indication unit 80; the commercial power input unit 10 is electrically connected with the transformer unit 30 and the voltage conversion and regulation unit 40; the transformer unit 30 is electrically connected with the constant current output unit 50 and the commercial power indicating unit 80; the voltage conversion and regulation unit 40 is electrically connected with the switching power supply unit 20, the acceleration starting unit 60 and the voltage feedback unit 70; the constant current output unit 50 is electrically connected with the voltage feedback unit 70; the acceleration starting unit 60 is electrically connected to the switching power supply unit 20 and the voltage feedback unit 70; the voltage feedback unit 70 is electrically connected to the utility indication unit 80.

In this embodiment, the voltage conversion and adjustment unit 40 is arranged to convert the commercial power into low-voltage direct current, so that the voltage inside the lamp strip is safe, and the lamp strip can be safely used without being covered by an insulating layer;

make the electric current of LED of flowing through invariable through setting up constant current output unit 50, and then make LED lamp area luminous intensity even, adjust the electric current size in LED lamp area of flowing through the adjustting of the lighteness unit simultaneously, and then make the user can adjust the luminous intensity in LED lamp area according to the in service behavior demand

In a particular application, as shown in fig. 3, it is preferred that: the voltage converting and regulating unit 40 includes an eight-pin power conversion control chip U1 of model NCP1200D 1.

As shown in fig. 3, in the embodiment, it is preferable that: the voltage feedback unit 70 comprises a first photocoupler U2 with a four-pin model P181, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a thirteenth capacitor C13, a sixteenth electrolytic capacitor CJ16 and a seventh diode U7; the emitter of the first photocoupler U2 is grounded, the collector is connected with the acceleration starting unit 60 and the voltage conversion and adjustment unit 40, the anode is connected with one end of the twenty-second resistor R22 and the twenty-fourth resistor R24, the cathode is connected with the cathode of the seventh diode U7, the anode of the seventh diode U7 is grounded, the cathode is connected with the other end of the twenty-second resistor R22, the cathode of the seventh diode U7 is connected with one end of the thirteenth capacitor C13 and the anode of the sixteenth electrolytic capacitor CJ16, the other end of the thirteenth capacitor C13 and the cathode of the sixteenth electrolytic capacitor CJ16 are connected with one end of the twenty-third resistor R23, the other end of the twenty-third resistor R23 is connected with one end of the twenty-fifth resistor R25 and the twenty-sixth resistor R26, the other ends of the twenty-fourth resistor R24 and the twenty-fifth resistor R25 are connected with the constant current output unit 50, and the one end of the twenty-sixth resistor R26 is connected with the constant current output unit 50 and the other end is grounded.

The embodiment of the utility model provides an in, voltage feedback unit 70 immediately feeds back mains voltage's the change situation to voltage conversion and regulating unit 40 to guarantee constant current output unit 50 output voltage's stability, prevent that mains voltage jumps and arouse the damage of lamp area LED lamp pearl.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same principle as the protection scope of the present invention.

Claims

1. A driving power supply of a safe constant-current adjustable-brightness lamp belt comprises a mains supply input unit (10), a switch power supply unit (20), a transformer unit (30), a voltage conversion and adjustment unit (40), a constant-current output unit (50), an acceleration starting unit (60), a voltage feedback unit (70) and a mains supply indication unit (80);

the method is characterized in that: the commercial power input unit (10) is electrically connected with the transformer unit (30) and the voltage conversion and regulation unit (40); the transformer unit (30) is electrically connected with the constant current output unit (50) and the commercial power indicating unit (80); the voltage conversion and regulation unit (40) is electrically connected with the switching power supply unit (20), the acceleration starting unit (60) and the voltage feedback unit (70); the constant current output unit (50) is electrically connected with the voltage feedback unit (70); the acceleration starting unit (60) is electrically connected with the switching power supply unit (20) and the voltage feedback unit (70); the voltage feedback unit (70) is electrically connected with the commercial power indicating unit (80).

2. A driving power supply for a safe constant-current adjustable-brightness lamp strip according to claim 1, characterized in that: the voltage conversion and regulation unit (40) comprises an eight-pin power conversion control chip (U1) with the model number of NCP1200D 1.

3. A driving power supply for a safe constant-current adjustable-brightness lamp strip according to claim 2, characterized in that: the voltage feedback unit (70) comprises a first photoelectric coupler (U2) with a model number of P181 and four pins, a twenty-second resistor (R22), a twenty-third resistor (R23), a twenty-fourth resistor (R24), a twenty-fifth resistor (R25), a twenty-sixth resistor (R26), a thirteenth capacitor (C13), a sixteenth electrolytic capacitor (CJ16) and a seventh diode (U7);

the emitter of the first photocoupler (U2) is grounded, the collector of the first photocoupler is connected with the acceleration starting unit (60) and the voltage conversion and regulation unit (40), the anode of the first photocoupler is connected with one end of the twenty-second resistor (R22) and the twenty-fourth resistor (R24), the cathode of the first photocoupler is connected with the cathode of the seventh diode (U7), the anode of the seventh diode (U7) is grounded, the cathode of the seventh diode is connected with the other end of the twenty-second resistor (R22), the cathode of the seventh diode (U7) is connected with one end of the thirteenth capacitor (C13) and the anode of the sixteenth electrolytic capacitor (CJ16), the other end of the thirteenth capacitor (C13) and the cathode of the sixteenth electrolytic capacitor (CJ16) are connected with one end of the twenty-third resistor (R23), the other end of the twenty-third resistor (R23) is connected with one end of the twenty-fifth resistor (R25) and the twenty-sixth resistor (R26), and the other end of the twenty-fourth resistor (R24) is connected with the other output unit (R25), and one end of the twenty-sixth resistor (R26) is connected with the constant current output unit (50), and the other end is grounded.