CN201170458Y - Microcomputer DC multi-purpose high-power LED lighting energy-saving lamp - Google Patents

Abstract

The utility model discloses a multipurpose high-power LED energy-saving lamp, pertaining to the field of electric lighting, comprising a main body (1), a control circuit board (5), a LED illuminating device (8), a reflecting cover body (9), etc. The positive and negative electrodes of a power cord (2) are connected with the positive and negative electrodes of a DC power supply; the other end of the power cord (2) is connected with the control circuit board (5); the LED illuminating device (8) is installed on a heat distribution plate (6); a temperature sensor (12) is mounted on the backface of the control circuit board (5); the control circuit board (5) and the heat distribution plate (6) are installed inside an enclosure in interval; the reflecting cover body (9) is mounted at the lower end of the heat distribution plate (6); and a water-proof transparent cover (10) is mounted at the bottom end of the enclosure. Compared with incandescent lamps, the utility model can save power by 80 percent under the condition of equal optical efficiency and the service life is 33.3 times of that of the incandescent lamps; and the utility model also has many other advantages.

Description

Microcomputer DC multi-purpose high-power LED lighting energy-saving lamp

technical field

Microcomputer DC multi-purpose high-power LED lighting energy-saving lamps. It belongs to the field of electric lighting.

Background technique

At present, at home and abroad, when the AC power fails, or in the absence of AC power, the multi-purpose lighting lamps used mainly include: DC inverter AC circuit to convert the DC voltage of the battery into AC voltage for power supply. The incandescent lamps with tungsten filaments, or the energy-saving lamps with tungsten filaments that start phosphors to emit light, and the energy-saving lamps with tricolor phosphors that emit light. Their common feature is the use of tungsten filament luminescent material and luminescent technology. The power supply adopts DC inverter AC technology. Its disadvantage is that the tungsten filament luminescent material converts 90-97% of the electric energy into heat consumption and waste, and at the same time, the DC inverter equipment also generates a large amount of heat dissipation and waste. As a result, the storage battery requires large capacity, large volume, and many charging times, which consumes and wastes scarce power resources.

To sum up, at present, various multi-purpose lighting lamps have low efficiency of electric energy conversion, high power consumption, large battery loss, and short service life, resulting in a large amount of waste of power resources and waste of battery materials. Urgently needed in this field, low power consumption, small size, high brightness, long lighting duration, new luminescent materials and luminescent technology, save the link of DC inverter AC technology, directly use DC low voltage power supply for multi-purpose lighting, new energy-saving Replacement products for electric lighting lamps. Change the problem of power consumption and waste of multi-purpose lighting.

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 DC multi-purpose high-power LED lighting energy-saving lamps as much as 33.3 times.

The technical solution adopted by the utility model to solve the technical problem is: the microcomputer DC multi-purpose high-power LED lighting energy-saving lamp is characterized in that it includes a lamp body main body, a power cord, a DC power supply, a casing, a control circuit board, a cooling plate, Ventilation and heat dissipation holes in the inner cavity, LED light-emitting devices, reflective cover body, waterproof transparent cover, ventilation and heat dissipation holes in the shell, temperature sensor, connect the positive pole of the power cord to the positive pole of the DC power supply, and the negative pole of the power cord to the negative pole of the DC power supply. One end is connected to the control circuit board, the LED light-emitting device is installed on the heat sink, the temperature sensor is installed on the back of the control circuit board, the control circuit board and the heat sink 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 It is installed at the bottom of the casing, and the casing is provided with ventilation and heat dissipation holes for the casing, and the heat dissipation plate is provided with ventilation and heat dissipation holes for the inner cavity.

The DC power supply is a battery BAT or a wide range DC power supply.

A plurality of microcomputer DC multi-purpose high-power LED lighting energy-saving lamps adopt a combination of rows and columns or a combination of dot matrix and matrix as a strong light source.

The control circuit board is equipped with power supply filter circuit, microcontroller MCU power supply circuit, microcontroller MCU, LED light-emitting device temperature detection circuit, LED light-emitting circuit, constant current drive circuit, loop current detection circuit, and the power supply filter circuit is connected to the microcontroller. The MCU power supply circuit is connected to the input terminal of the working power supply of the microcontroller MCU, and the other is connected to the LED light-emitting circuit, the constant current drive circuit, and the loop current detection circuit are connected to the input pin of the microcontroller MCU, and the loop current detection circuit is connected to the microcontroller MCU. The output control pin of the LED is connected with the constant current drive circuit, and the output pin of the LED light-emitting temperature detection circuit is connected with the microcontroller MCU.

working principle:

It overcomes the problems of low light efficiency of electric energy conversion, large power consumption of electric energy and heat dissipation, and waste of electric power resources caused by the existing multi-purpose lighting lamps. Overcome the problem of saving the technical link and equipment of DC inverter AC, reducing the capacity and volume of the battery, reducing the number of charging, prolonging the service life, and saving scarce power resources. Connect the positive pole of the power line to the positive pole of the battery BAT, or the positive pole of the wide-range DC power supply, and connect the negative pole of the power line to the negative pole of the battery BAT, or the negative pole of the wide-range DC power supply, through the control circuit, controlled by the microcontroller MCU Regulate voltage and constant current to drive LED light emitting device to emit light. Through the concentrated reflection of the reflective cover body, the ambient lighting is realized through the waterproof transparent cover body.

The beneficial effect of the patent is: direct use of direct current accumulators or input of wide-range direct current voltage to supply power for lighting, saving direct current inverter and alternating current technical links and equipment. Strong light sources can be combined in columns and dot matrix, and the intensity of the light source required for any combination can meet the requirements of different occasions. All components are combined and installed in the lamp body shell, and the appearance is only the main body of the lamp body and the leading input power line. DC voltage input range is wide. With high efficiency and energy saving, compared with the traditional emergency backup lighting, under the same battery capacity, it can save 80% of electricity, prolong the lighting time, reduce the number of charging, and prolong the service life of the battery. Save the DC inverter AC equipment, reducing the cost of use. The use performance is stable and reliable, and the service life is extended, which is 33.3 times longer than that of traditional multi-purpose lighting. It is a green light source without environmental pollution.

Description of drawings

Figure 1 is a structural schematic diagram of a microcomputer DC multi-purpose high-power LED lighting energy-saving lamp;

Fig. 2 is a structural schematic diagram of a strong light source energy-saving lamp with multiple LED light-emitting devices combined in rows and columns;

Fig. 3 is a structural schematic diagram of a strong light source energy-saving lamp with a rectangular lattice of LED light-emitting devices;

Fig. 4 is a schematic block diagram of a microcomputer DC multi-purpose high-power LED lighting energy-saving lamp circuit;

Fig. 5 is a microcomputer DC multi-purpose high-power LED lighting energy-saving lamp circuit schematic diagram.

In Figure 1: 1 lamp body main body 2 power cord 3 battery BAT 4 shell 5 control circuit board 6 cooling plate 7 inner cavity ventilation cooling hole 8 LED light emitting device 9 reflective cover body 10 waterproof transparent cover 11 casing ventilation cooling hole 12 temperature sensor Q2.

In Fig. 5: U1 microcontroller MCU D1 diode C1-C7 capacitor R1-R4 resistor Q1 insulated gate bipolar transistor Q2 temperature sensor L1 reactor LED light emitting device DZ1 Zener diode.

Fig. 1, 4, 5 are the best embodiment of the present utility model. The microcomputer DC multi-purpose high-power LED lighting energy-saving lamp is further explained below in conjunction with accompanying drawings 1-5:

Detailed ways

Example 1

Referring to Figure 1:

The microcomputer DC multi-purpose high-power LED lighting energy-saving lamp includes a lamp body body 1, a power cord 2, a DC power supply using a battery BAT3, an outer shell 4, a control circuit board 5, a cooling plate 6, inner cavity ventilation and cooling holes 7, and LED light emitting devices 8. Reflective cover body 9, waterproof transparent cover 10, housing ventilation and cooling holes 11, temperature sensor 12, connect the positive pole of the power line 2 to the positive pole of the battery BAT 3, connect the negative pole of the power line 2 to the negative pole of the battery BAT 3, and connect the power line 2 The other end is connected to the control circuit board 5, the light emitting device 8 is installed on the heat dissipation plate 6, the control circuit board 5 and the heat dissipation plate 6 are installed in the shell 4 at intervals, and the temperature sensor 12 is installed on the back of the control circuit board 5. The reflective cover body 9 is installed on the lower end of the heat dissipation plate 6, and the waterproof transparent cover 10 is installed on the bottom end of the shell 4. The shell 4 is provided with the ventilation and heat dissipation holes 11 of the shell, and the heat dissipation plate 6 is provided with the inner chamber ventilation heat dissipation holes 7. DC power supply or wide range DC power supply. Connect the positive pole of the power line 2 to the positive pole of the battery BAT, or the positive pole of the wide-range DC power supply, and connect the negative pole of the power line 2 to the negative pole of the battery BAT, or the negative pole of the wide-range DC power supply, and adjust the voltage through the control of the microcontroller MCU The constant current drives the LED light emitting device 8 to emit light, the temperature sensor 12 detects the working temperature of the LED light emitting device 8 , and the microcontroller MCU automatically controls the working temperature of the LED light emitting device 8 . The loop current of the LED light-emitting device is detected by the microcontroller MCU, and the constant current driving frequency is stably controlled. Through the concentrated reflection of the reflective cover body 9, the ambient lighting is realized through the waterproof transparent cover body.

Referring to Figure 4:

The control circuit board is equipped with power supply filter circuit, microcontroller MCU power supply circuit, microcontroller MCU, LED light-emitting device temperature detection circuit, LED light-emitting circuit, constant current drive circuit, loop current detection circuit, and the power supply filter circuit is connected to the microcontroller. The MCU power supply circuit is connected to the input terminal of the working power supply of the microcontroller MCU, and the other is connected to the LED light-emitting circuit, the constant current drive circuit, and the loop current detection circuit are connected to the input pin of the microcontroller MCU, and the loop current detection circuit is connected to the microcontroller MCU. The output control pin of the LED is connected with the constant current drive circuit, and the output pin of the LED light-emitting temperature detection circuit is connected with the microcontroller MCU.

Referring to Figure 5:

The power filter circuit includes capacitors C1 and C2. One end of the capacitor C1 is connected to the positive pole of the DC power supply, and the other end is connected to the negative pole of the DC power supply to filter out high-frequency noise of the DC high-voltage power supply. One end of the capacitor C2 is connected to the positive pole of the DC power supply, and the other end is connected to the negative pole of the DC 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 a resistor R1, a Zener diode DZ1, a capacitor C3, and a microcontroller MCUU1. One end of the current-limiting resistor R1 is connected to the positive pole of the DC power supply, and the other end is connected to the negative pole of the Zener diode DZ1. The positive pole is grounded, and the capacitor C5 is connected to pin 8 of the microcontroller MCU U1. Provide working power for the microcontroller MCU.

LED light-emitting device temperature detection circuit includes resistor R2, temperature sensor Q2, capacitor C4, microcontroller MCU U1, the base of the temperature sensor Q2 is connected to the collector, one end of the current limiting resistor R2 is connected to the junction VDD of the resistor R1 and the diode D1, and the resistor The other end of R2 is connected to the collector of the temperature sensor Q2 and the parallel connection point of the filter capacitor C4. After the emitter of the temperature sensor Q2 is connected to the other end of the capacitor C4 in parallel, it is connected to the 2-pin AD analog input of the microcontroller MCU U1. The temperature and driving frequency of the LED light emitting device 8 are automatically controlled by the microcontroller MCU.

The constant current drive circuit includes diode D1, LED light-emitting device, reactor L1, insulated gate bipolar transistor Q1, microcontroller MCU U1, the negative pole of switching diode D1 is connected to the positive pole of LED light-emitting device and then connected to the positive pole of DC power supply, and the switching diode D1 The anode of the LED is connected to the drain of the insulated gate bipolar transistor Q1, the cathode of the LED light-emitting device is connected to the input terminal of the reactor L1, the output terminal of the reactor L1 is connected to the drain of the insulated gate bipolar transistor Q1, and the insulated gate bipolar transistor Q1 The source is connected to one end of the loop current sampling resistor R3, the other end of the resistor R3 is grounded, and the gate of the insulated gate bipolar transistor Q1 is connected to pin 6 of the microcontroller MCU U1. Control the working current of the LED light-emitting device to make the LED light-emitting device emit light.

The loop current detection circuit includes a resistor R3, a capacitor C7, and a microcontroller MCU U1. One end of the loop current sampling resistor R3 is connected to the source of the insulated gate bipolar transistor Q1 in the main circuit, and the bypass is connected to the 7-pin filter capacitor of the microcontroller MCU U1. One end of C7, the other end of resistor R3 are grounded, and the other end of capacitor C7 is grounded.

The control circuit board 5 is provided with a power filter circuit, a microcontroller MCU working power supply circuit, a microcontroller MCU, an LED luminous temperature detection circuit, an LED luminous control circuit, a constant current drive control circuit, a loop current detection circuit, and a power filter circuit. Connect the MCU working power supply circuit to the microcontroller MCU power input pin, and the other to connect the LED light-emitting circuit, constant current drive circuit, and loop current detection circuit. The control line of the control circuit is connected to the input and output pins of the microcontroller MCU. The control output pin of the controller MCU is connected with the constant current drive circuit, and the LED light-emitting temperature detection circuit is connected with the input pin of the microcontroller MCU. The loop current of the LED lighting device is intelligently controlled by the microcontroller MCU.

Example 2

Refer to Figure 2

A plurality of microcomputer DC multi-purpose high-power LED lighting energy-saving lamps are combined into a strong light source. Suitable for occasion lighting that requires strong light.

Example 3

Refer to Figure 3

A plurality of microcomputer direct current multi-purpose high-power LED lighting energy-saving lamps are combined in a dot-matrix matrix to form a strong light source. Suitable for occasion lighting that requires strong light.

Claims (9)

1, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer, it is characterized in that: comprise lamp body main body (1), power line (2), dc source, shell (4), control circuit board (5), heat sink (6), inner chamber ventilating heat dissipating hole (7), LED luminescent device (8), reflecting shade body (9), waterproof translucent cover (10), ventilation for enclosures louvre (11), temperature sensor (12), the positive pole that the positive pole of power line (2) is connected dc source, the negative pole of power line (2) connects the negative pole of dc source, power line (2) other end links to each other with control circuit board (5), LED luminescent device (8) is installed on the heat sink (6), temperature sensor (12) is installed in the back side of control circuit board (5), control circuit board (5), heat sink (6) is installed in the shell (4) at interval, reflecting shade body (9) is installed in heat sink (6) lower end, waterproof translucent cover (10) is installed in shell (4) bottom, shell (4) is provided with ventilation for enclosures louvre (11), and heat sink (6) is provided with inner chamber ventilating heat dissipating hole (7).

2, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer according to claim 1 is characterized in that: dc source is battery BAT (3) or wide cut degree dc source.

3, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer according to claim 1 is characterized in that: a plurality of direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer adopt ranks combination or dot matrix square type to be combined as intense light source.

4, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer according to claim 1, it is characterized in that: control circuit board is provided with electric source filter circuit on (5), microcontroller MCU power circuit, microcontroller MCU, LED luminescent device temperature sensing circuit, the LED illuminating circuit, constant-current drive circuit, the loop current testing circuit, electric source filter circuit one tunnel connects microcontroller MCU power circuit and links to each other with microcontroller MCU working power input, another road connects the LED illuminating circuit, constant-current drive circuit, the loop current testing circuit links to each other with the input pin of microcontroller MCU, the loop current testing circuit links to each other with constant-current drive circuit with the output control pin of microcontroller MCU, and the output pin of LED luminance temperature testing circuit links to each other with microcontroller MCU.

5, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer according to claim 4, it is characterized in that: electric source filter circuit comprises capacitor C 1, C2, one end of capacitor C 1 connects the positive pole of dc source, the other end connects the negative pole of dc source, one end of capacitor C 2 connects the positive pole of dc source, and the other end connects the negative pole of dc source.

6, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer according to claim 4, it is characterized in that: microcontroller MCU power circuit comprises resistance R 1, Zener diode DZ1, capacitor C 3, microcontroller MCU U1, the end of current-limiting resistance R1 connects the positive pole of dc source, the other end connects the negative pole of Zener diode DZ1, the plus earth of Zener diode DZ1, capacitor C 5 connects 8 pin of microcontroller MCU U1.

7, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer according to claim 4, it is characterized in that: LED luminescent device temperature sensing circuit comprises resistance R 2, temperature sensor Q2, capacitor C 4, microcontroller MCU U1, the base stage of temperature sensor Q2 connects colelctor electrode, the end of current-limiting resistance R2 connects the contact VDD of resistance R 1 and diode D1, the other end of resistance R 2 connects the colelctor electrode contact in parallel with filter capacitor C4 of temperature sensor Q2, after the emitter stage of temperature sensor Q2 connects the other end and interface of capacitor C 4, connect the 2 pin AD analog inputs of microcontroller MCU U1.

8, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer according to claim 4, it is characterized in that: constant-current drive circuit comprises diode D1, the LED luminescent device, reactor L1, igbt Q1, microcontroller MCU U1, the negative pole of switching diode D1 connects the positive pole of the anodal back connection dc source of LED luminescent device, the positive pole of switching diode D1 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 end of the source electrode link circuit current sampling resistor R3 of igbt Q1, the other end ground connection of resistance R 3, the grid of igbt Q1 connects 6 pin of microcontroller MCU U1.

9, direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer according to claim 4, it is characterized in that: the loop current testing circuit comprises resistance R 3, capacitor C 7, microcontroller MCU U1, the end main road of loop current sampling resistor R3 connects the source electrode of igbt Q1, bypass connects the end of the 7 pin filter capacitor C7 of microcontroller MCU U1, the other end ground connection of resistance R 3, the other end ground connection of capacitor C 7.

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