CN201184509Y - Microcomputer AC high-power tri-color LED lighting energy-saving lamp - Google Patents

Abstract

The utility model relates to a microcomputer AC high-power three-primary-color LED lighting energy-saving lamp, which belongs to the field of electric lighting. It includes a screw lamp socket connector (1), a control circuit board (3), an LED light emitting device (7), a reflective cover body (8), a waterproof transparent cover (12), etc., and the shell (4) and the screw lamp socket connector (1 ) is fixed as a whole, one end of the power cord (2) is fixed in the screw lamp socket connector (1), the other end is connected with the control circuit board (3), and the LED light-emitting device (7) is installed on the cooling plate (6). The circuit board (3) and the cooling plate (6) are installed in the casing (4) at intervals, and the waterproof transparent cover (12) is installed at the bottom of the casing (4). LED light-emitting devices have remarkable power-saving effects, which can save 80% of electricity compared with incandescent lamps under the same power consumption conditions and the same light efficiency conditions. Strong versatility, easy to use and so on.

Description

Microcomputer AC high-power tri-color LED lighting energy-saving lamp

technical field

The utility model relates to a microcomputer AC high-power three-primary-color LED lighting energy-saving lamp, which belongs to the field of electric lighting.

Background technique

At present, electric lighting lamps at home and abroad mainly include: incandescent tungsten lamps, fluorescent lamps, trichromatic fluorescent phosphor energy-saving lamps, high-pressure mercury lamps, tungsten-halogen lamps, sodium lamps, etc. Their common feature is that tungsten wire is used as the main luminescent material, and its disadvantage is that the light efficiency of electric energy conversion is low, and most of the electric energy is converted into heat, which is wasteful and wasteful. The light efficiency of electric energy conversion of incandescent tungsten lamps is less than 3%, the light efficiency of electric energy conversion of high-pressure mercury lamps, halogen tungsten lamps, and sodium lamps is less than 5%, and the light efficiency of electric energy conversion of fluorescent lamps and trichromatic fluorescent powder energy saving lamps is less than 10%. 90% to 97% of the electric energy is converted into heat dissipation and waste. Its another shortcoming is that service life is short, and the service life of incandescent tungsten lamp is 3000 hours, and the service life of fluorescent lamp, tricolor fluorescent powder energy-saving lamp is 6000 hours.

To sum up, the lighting lamps currently used still continue the traditional tungsten filament luminescent materials and luminescent technology, resulting in low light efficiency of electric energy conversion, converting most of the electric energy into heat and dissipating consumption, wasting a lot of power resources. Urgently waiting for new luminescent materials and luminescent technology to upgrade and solve the problem of wasting energy in electric lighting. It has broad technical space and market prospects in its field.

Utility model content

The technical problem to be solved by the utility model is: to overcome the problems existing in the prior art, to provide a lamp whose power saving efficiency is 80% lower than that of an incandescent lamp under the same light efficiency condition, and whose service life is the same as that of an incandescent lamp under the same power consumption environment. Compared with microcomputer AC high-power three-color LED lighting energy-saving lamps, it is as high as 33.3 times.

The technical scheme adopted by the utility model to solve the technical problem is: the microcomputer AC high-power tri-color LED lighting energy-saving lamp, which is characterized in that: the power cord of the spiral lamp port connector, the control circuit board, the shell, and the power connection wire of the LED light-emitting device , heat dissipation plate, LED light-emitting device, reflective cover body, ventilation and heat dissipation holes of the shell, ventilation and heat dissipation holes of the inner cavity, temperature sensor, waterproof transparent cover, the shell and the screw lamp port connector are fixed as a whole, and one end of the power cord is fixed to the screw lamp port to connect Inside the body, the other end is connected to the control circuit board, the LED light-emitting device is installed on the heat dissipation plate, the control circuit board and the heat dissipation plate are installed in the shell at intervals, the reflective cover is installed at the lower end of the heat sink, and the waterproof transparent cover is installed at the bottom of the shell. 1. There are cooling holes on the cooling plate, and the temperature sensor is installed on the back of the control circuit board.

The control circuit board is equipped with a rectifier circuit, a PFC power factor correction circuit, a power filter circuit, a microcontroller MCU power supply circuit, a microcontroller MCU, an LED light-emitting temperature detection circuit, an LED light-emitting circuit, a constant current drive circuit, and a loop current detection circuit. The rectifier circuit is connected to the power filter circuit through the PFC power factor correction circuit, and the microcontroller MCU is connected to the constant current drive circuit. The constant current drive circuit and the loop current detection circuit are connected with the microcontroller MCU, and the LED light-emitting temperature detection circuit is connected with the microcontroller MCU.

working principle:

The AC high voltage is rectified to DC, and the low-voltage electric field light-emitting device LED is directly driven by the microcontroller MCU for lighting. PFC power factor correction technology is used to increase the power duty cycle by 70%. Reactive power compensation technology is used to return the remaining electric energy of the LED light-emitting device to grid, reused.

The beneficial effect of the utility model is that: the LED light-emitting device has a remarkable power-saving effect, and can save 80% of power compared with an incandescent lamp under the same power consumption condition and the same light effect condition. Strong versatility and easy to use: all components are installed in the main shell of the lamp body, and the overall combined sealing structure. Through the connecting body of the screw lamp socket, it is screwed into the socket of the universal AC incandescent lamp socket, and the lighting can be turned on when the electricity is turned on. The light-emitting device is installed on the heat dissipation plate, and there is a space for heat dissipation between the control circuit board. The shell and the inner cavity are equipped with ventilation and heat dissipation holes, which have good ventilation and heat dissipation conditions, so the performance is stable and reliable, and the service life is as long as 100,000 hours, which is 33.3 times the life of incandescent lamps and 16.7 times the life of fluorescent energy-saving lamps. The chrome-plated reflective cover body improves the light-gathering reflection brightness of the LED light-emitting device. It is a high-tech product that replaces traditional lighting fixtures. It is a green new light source with no radiation and no environmental pollution, and has a wide range of uses and broad market prospects. It is an effective way to improve electricity efficiency and save energy.

Description of drawings

Figure 1 is a microcomputer AC high-power tri-color LED lighting energy-saving lamp structure diagram;

Fig. 2 is a microcomputer AC high-power three-primary-color LED lighting energy-saving lamp circuit principle block diagram;

Fig. 3 is a microcomputer AC high-power three-primary-color LED lighting energy-saving lamp circuit schematic diagram.

In Fig. 1: 1 Spiral lamp port connector 2 Power cord 3 Control circuit board 4 Shell 5 LED light-emitting device power connection wire 6 Radiator plate 7 LED light-emitting device 8 Reflective cover body 9 Shell ventilation holes 10 Inner cavity ventilation holes 11 Temperature sensor 12 Waterproof transparent cover.

In Figure 3: U1 microcontroller MCU F1 fuse D1-D4 rectifier bridge C1-C7 capacitor R1-R4 resistor Q1 insulated gate bipolar transistor Q2 temperature sensor L1 reactor LED light emitting device DZ1 Zener diode D5-D7 diode.

The progress of microcomputer AC high-power three-primary-color LED lighting energy-saving lamps is described below in conjunction with accompanying drawings 1-3:

Detailed ways

Referring to Figure 1:

Microcomputer AC high-power three-color LED lighting energy-saving lamp, which consists of a screw lamp socket connector 1, a power cord 2, a control circuit board 3, a casing 4, a power connection wire for LED light-emitting devices 5, a cooling plate 6, LED light-emitting devices 7, and a reflector Body 8, shell ventilation holes 9, inner cavity ventilation holes 10, temperature sensor 11, waterproof transparent cover 12, the shell 4 is fixed with the screw lamp port connector 1 as a whole, and one end of the power cord 2 is fixed on the spiral lamp port connector body 1, the other end is connected to the control circuit board 3, the LED light-emitting device 7 is installed on the heat dissipation plate 6, the control circuit board 3 and the heat dissipation plate 6 are installed in the shell 4 at intervals, and the reflective cover 8 is installed on the lower end of the heat dissipation plate 6, waterproof The transparent cover 12 is installed on the bottom of the shell 4, and the shell 4 and the cooling plate 6 are provided with cooling holes, and the temperature sensor 11 is installed on the back side of the control circuit board 3.

Align the spiral lamp connector 1 of the microcomputer AC high-power tri-color LED lighting energy-saving lamp with the universal incandescent lamp socket, and tighten it to connect to the high-voltage AC, and connect the rectifier circuit on the control circuit board 3 through the power cord 2 for rectification. After the power factor correction circuit PFC increases the power duty cycle, after filtering by the filter circuit, the microcontroller MCU controls the switching power supply to step down to the DC voltage required by the LED light-emitting device, and provides the working voltage for the LED light-emitting device 7. The loop current of the LED light-emitting device driven by constant current is controlled by the microcontroller MCU. The operating temperature of the LED lighting device is detected by the temperature sensor 11 . The control circuit board 3 is connected to the control circuit board 3 by the power line 5 of the LED light-emitting device, and then the light can be illuminated. There is a chrome-plated reflective cover body 8 to improve the light-gathering reflection brightness of the light-emitting device. Waterproof transparent cover 12 is arranged to prevent water and dust from entering the lamp body. There are ventilation and heat dissipation holes 9 in the shell and ventilation and heat dissipation holes 10 in the inner cavity, which form good environmental ventilation and heat dissipation conditions with the inner cavity to ensure normal lighting operating temperature.

Referring to Figure 2:

The control circuit board is equipped with a rectifier circuit, a PFC power factor correction circuit, a power filter circuit, a microcontroller MCU power supply circuit, a microcontroller MCU, an LED light-emitting temperature detection circuit, an LED light-emitting circuit, a constant current drive circuit, and a loop current detection circuit. The rectifier circuit is connected to the power filter circuit through the PFC power factor correction circuit, and the microcontroller MCU is connected to the constant current drive circuit. The constant current drive circuit and the loop current detection circuit are connected with the microcontroller MCU, and the LED light-emitting temperature detection circuit is connected with the microcontroller MCU.

Referring to Figure 3:

Rectification circuit: including overcurrent fuse F1, rectifier diodes D1~D4, 220V power supply live wire through F1 overcurrent fuse, connecting the positive pole of diode D1 and the negative pole of diode D2, and the neutral line of 220V power supply connecting the positive pole of diode D3 and the diode D4 The cathode, the anode of the diode D1 and the diode D4 output the DC high-voltage positive power supply, and the cathodes of the diode D2 and the diode D3 output the DC high-voltage cathode power supply. The main circuit provides working power for the temperature sensor and the light-emitting device LED, and the bypass provides working power for the microcontroller MCU.

PFC power factor correction circuit: including switching diodes D5~D7, charging capacitors C1~C2, one end of charging capacitor C1 is connected to the positive pole of DC high-voltage power supply, the main circuit is connected to the positive pole of diode D5, the bypass is connected to the negative pole of diode D7, and the positive pole of diode D7 Grounded, the negative pole of the diode D5 is connected to one end of the charging capacitor C2 in the main circuit, the bypass is connected to the positive pole of the diode D6, the negative pole of the diode D6 is connected to the positive pole of the DC high voltage power supply, and the other end of the charging capacitor C2 is grounded. The PFC power factor correction circuit improves the power duty cycle to achieve power saving and high efficiency.

Power filter circuit: including capacitors C3 and C4. One end of capacitor C3 is connected to the positive pole of the DC high voltage power supply, the other end is connected to the negative pole of the DC high voltage power supply, one end of capacitor C4 is connected to the positive pole of the DC high voltage power supply, and the other end is connected to the negative pole of the DC high voltage power supply. Filter low frequency noise from DC high voltage power supply.

Microcontroller MCU U1 adopts Philips LPC700-900 series chips from the Netherlands. Or use the LM3S series chips of the American LUMINARY company, the ATTINY of the American ATTHEL company, the Taiwan Lingyang SPMC65, and the HT4 chips of the Taiwan Holtek company.

The microcontroller MCU power supply circuit includes resistor R1, Zener diode DZ1, filter capacitor C5, microcontroller MCU U1, one end of the current limiting resistor R1 is connected to the positive pole of the DC high-voltage power supply, and the other end is connected to the negative pole of the Zener diode DZ1 to stabilize the voltage. The anode of the diode DZ1 is grounded, one end of the filter capacitor C5 is connected to pin 8 of the microcontroller MCU U1, and the other end is grounded. Provide working power for the microcontroller MCU.

The LED light-emitting device temperature detection circuit includes a current-limiting resistor R2, a temperature sensor Q2, a filter capacitor C5, and a microcontroller MCU U1. The base of the temperature sensor Q2 is connected to the collector, and one end of the current-limiting resistor R2 is connected to the resistor R1 and the LED light-emitting device. The other end of the current limiting resistor R2 is connected to the collector of the temperature sensor Q2 and the parallel connection point of the filter capacitor C6. After the emitter of the temperature sensor Q2 is connected to the other end of the filter capacitor C6 in parallel, it is connected to 2 of the microcontroller MCU U1 Pin analog AD conversion input pin. The temperature and driving frequency of the LED light-emitting device are automatically controlled by the microcontroller MCU.

LED lighting circuit and constant current driving circuit include switching diode D8, LED lighting device, insulated gate bipolar transistor Q1, microcontroller MCU U1, voltage dividing resistor R3, sampling resistor R4, the negative pole of switching diode D8 is connected to the positive pole of LED lighting device Finally, connect the positive pole of the DC high-voltage power supply, the positive pole of the switching diode D8 is connected to the drain of the insulated gate bipolar transistor Q1, the negative pole of the LED light-emitting device is connected to the input terminal of the reactor L1, and the output terminal of the reactor L1 is connected to the insulated gate bipolar transistor. The drain of Q1, the source of the insulated gate bipolar transistor Q1 are connected to one end of the sampling resistor R4, the other end of the sampling resistor R4 is grounded, and the gate of the insulated gate bipolar transistor Q1 is connected to the 5-pin constant current drive of the microcontroller MCU U1 On the output pin, one end of the voltage dividing resistor R3 is connected to the gate of the IGBT Q1, and the other end is grounded.

The loop current detection circuit includes a sampling resistor R4, a filter capacitor C7, and a microcontroller MCU U1. One end of the sampling resistor R4 is connected to the source of the insulated gate bipolar transistor Q1 in the main circuit, and the bypass is connected to the loop current of pin 7 of the microcontroller MCU U1. The sampling input pin, the filter capacitor C7 and one end of the sampling resistor R4 are connected in parallel to pin 7 of the microcontroller MCU U1, and the filter capacitor C7 and the other end of the sampling resistor R4 are connected in parallel to the ground. The loop current of the light-emitting LED is intelligently controlled by the microcontroller MCU.

work process:

Align the screw lamp socket connector 1 with the universal incandescent lamp socket, and then tighten it to connect to high-voltage AC power. Connect the high-voltage power line 2 to the high-voltage rectifier circuit on the control circuit board 3. After high-voltage rectification, the PFC power factor is corrected. The circuit improves the power duty cycle, and after being filtered by the filter circuit, the microcontroller MCU controls the switching power supply to step down to the DC voltage required by the light-emitting device LED, and provides the working voltage for the LED light-emitting device. The operating temperature of the light emitting device is detected by the microcontroller MCU. The loop current of the LED light-emitting device driven by constant current is controlled by the microcontroller MCU. The control circuit board 3 is connected to the control circuit board 3 by the power line 5 of the LED light-emitting device, and the light can be illuminated under the condition that the debugging connection is correct.

Claims (9)

1, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer, it is characterized in that: screw lamp base connector (1), power line (2), control circuit board (3), shell (4), LED luminescent device electric power connection line (5), heat sink (6), LED luminescent device (7), reflecting shade body (8), ventilation for enclosures louvre (9), inner chamber ventilating heat dissipating hole (10), temperature sensor (11), waterproof translucent cover (12), shell (4) is fixed as one with screw lamp base connector (1), power line (2) one ends are fixed in the screw lamp base connector (1), the other end links to each other with control circuit board (3), LED luminescent device (7) is installed on the heat sink (6), control circuit board (3), heat sink (6) is installed in the shell (4) at interval, reflecting shade body (8) is installed in heat sink (6) lower end, waterproof translucent cover (12) is installed in shell (4) bottom, shell (4), heat sink is equipped with louvre on (6), and temperature sensor (11) is installed in the back side of control circuit board (3).

2, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer according to claim 1, it is characterized in that: control circuit board is provided with rectification circuit on (4), the PFC circuit of power factor correction, electric source filter circuit, microcontroller MCU power supply circuits, microcontroller MCU, LED luminance temperature testing circuit, the LED illuminating circuit, constant-current drive circuit, the loop current testing circuit, rectification circuit links to each other with electric source filter circuit by the PFC circuit of power factor correction, microcontroller MCU links to each other with constant-current drive circuit, electric source filter circuit is leaded up to microcontroller MCU power supply circuits and is linked to each other with microcontroller MCU, another road is by the LED illuminating circuit, constant-current drive circuit, the loop current testing circuit links to each other with microcontroller MCU, and LED luminance temperature testing circuit links to each other with microcontroller MCU.

3, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer according to claim 2, it is characterized in that: rectification circuit: comprised flow fuse F1, commutation diode D1～D4, the 220V power firestreak is crossed flow fuse through F1, connect the positive pole of diode D1 and the negative pole of diode D2, the 220V zero-power line connects the positive pole of diode D3 and the negative pole of diode D4, the positive pole output high direct voltage cathode power supply of diode D1 and diode D4, the negative pole output high direct voltage negative power supply of diode D2 and diode D3.

4, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer according to claim 2, it is characterized in that: the PFC circuit of power factor correction: comprise switching diode D5～D7, charging capacitor C1～C2, charging capacitor C1 one end connects the positive pole of DC high-voltage power supply, main road connects the positive pole of diode D5, bypass connects the negative pole of diode D7, the plus earth of diode D7, the negative pole main road of diode D5 connects the end of charging capacitor C2, bypass connects the positive pole of diode D6, the negative pole of diode D6 connects the positive pole of DC high-voltage power supply, the other end ground connection of charging capacitor C2.

5, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer according to claim 2, it is characterized in that: electric source filter circuit: comprise capacitor C 3, C4, one end of capacitor C 3 connects the positive pole of DC high-voltage power supply, the other end connects the negative pole of DC high-voltage power supply, one end of capacitor C 4 connects the positive pole of DC high-voltage power supply, and the other end connects the negative pole of DC high-voltage power supply.

6, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer according to claim 2, it is characterized in that: microcontroller MCU power supply circuits comprise resistance R 1, Zener diode DZ1, filter capacitor C5, microcontroller MCU U1, the end of current-limiting resistance R1 connects the positive pole of DC high-voltage power supply, the other end connects the negative pole of Zener diode DZ1, the plus earth of Zener diode DZ1,8 pin of filter capacitor C5 one termination microcontroller MCU U1, other end ground connection.

7, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer according to claim 2, it is characterized in that: LED luminescent device temperature sensing circuit comprises current-limiting resistance R2, temperature sensor Q2, filter capacitor C5, microcontroller MCU U1, the base stage of temperature sensor Q2 connects colelctor electrode, the end of current-limiting resistance R2 connects the contact of resistance R 1 and LED luminescent device, the other end of current-limiting resistance R2 connects the colelctor electrode of temperature sensor Q2 and the contact in parallel of filter capacitor C6, after the emitter stage of temperature sensor Q2 connects the other end and interface of filter capacitor C6, connect the 2 pin simulation AD conversion input pin of microcontroller MCU U1.

8, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer according to claim 2, it is characterized in that: LED illuminating circuit and constant-current drive circuit comprise switching diode D8, the LED luminescent device, igbt Q1, microcontroller MCU U1, divider resistance R3, sampling resistor R4, after the negative pole of switching diode D8 connects the positive pole of LED luminescent device, the positive pole that connects DC high-voltage power supply, the positive pole of switching diode D8 connects the drain electrode of igbt Q1, the negative pole of LED luminescent device connects the input of reactor L1, the output of reactor L1 connects the drain electrode of igbt Q1, the source electrode of igbt Q1 connects the end of sampling resistor R4, the other end ground connection of sampling resistor R4, the 5 pin constant currents that the grid of igbt Q1 connects microcontroller MCU U1 drive output pin, divider resistance R3 one end connects the grid of igbt Q1, other end ground connection.

9, alternating current large-power tricolor LED lighting energy-saving lamp of microcomputer according to claim 2, it is characterized in that: the loop current testing circuit comprises sampling resistor R4, filter capacitor C7, microcontroller MCU U1, the end main road of sampling resistor R4 connects the source electrode of igbt Q1, bypass connects the 7 pin loop currents sampling input pin of microcontroller MCU U1, filter capacitor C7 and sampling resistor R4 one end also connect 7 pin of microcontroller MCU U1, filter capacitor C7 and sampling resistor R4 other end ground connection in parallel.

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