CN216905384U - Low-power consumption LED lamp and LED lamp subassembly - Google Patents

Abstract

The utility model relates to the field of LED lamps, and discloses a low-power consumption LED lamp, which comprises a circuit board, a power-on circuit is arranged on the circuit board, and a light source, a control module and a constant-current module are connected on the power-on circuit. The control module is electrically connected to the positive pole of the light source, the constant current module is electrically connected to the negative pole of the light source, and the control module is electrically connected to the constant current module. Compared with the prior art, the utility model has the beneficial effects of: optimizing the circuit The layout, the cooperation between the control chip and the resistor ensures that the power factor PF is greater than 0.9, which reduces the production cost while meeting the requirements of the industry; the control module and the constant current module can keep the luminous flux of the LED lamp above 600lm.

Description

A low power consumption LED lamp and LED lamp assembly

technical field

The utility model relates to the field of LED lamps, in particular to an LED lamp with low power consumption.

Background technique

LED (Light Emitting Diode), light-emitting diode, is a solid-state semiconductor device that can convert electrical energy into visible light. It can directly convert electricity into light. With the development and progress of science and technology, the application of LED lights is also more and more. However, the power factor PF of traditional LED lamps is generally lower than 0.8, while the industry requires that the power factor PF of LED lamps should be no less than 0.9. Most manufacturers can only achieve this by adding multiple resistors, which increases production costs. At the same time, it also makes the circuit more complicated, and the luminous flux of the LED lamp produced can only be 550-600lm.

Utility model content

In order to overcome the above deficiencies, the present utility model aims to provide a technical solution that can solve the above problems.

A low-power LED lamp, comprising a circuit board, a power-on circuit is arranged on the circuit board, a light source, a control module and a constant current module are connected on the power-on circuit, the control module is electrically connected with the positive electrode of the light source, and the The constant current module is electrically connected to the negative electrode of the light source, and the control module is electrically connected to the constant current module.

As one of the improvements of the above technical solutions, the light source is composed of several LED lamps connected in series, and the voltage reduction is realized by connecting the LED lamps in series.

As one of the improvements of the above technical solutions, the control module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, an electrolytic capacitor and a control chip, and the control chip is provided with eight leads pin, the first resistor, the second resistor and the light source are connected in series, the fifth pin and the sixth pin of the control chip are electrically connected to the line between the first resistor and the second resistor, the fourth resistor and the fifth resistor are connected in series between the first pin and the fourth pin of the control chip, and the second pin of the control chip is electrically connected to the line between the fourth resistor and the fifth resistor.

As one of the improvements of the above technical solutions, a diode is connected between the second resistor and the light source, the light source and the constant current module are on the same line and are connected in parallel with the electrolytic capacitor and the third resistor in the seventh place of the diode and the control chip. Between the pins, the seventh pin of the control chip is electrically connected to the eighth pin.

As one of the improvements of the above technical solutions, the constant current module includes: a constant current chip and a capacitor, the input end of the constant current chip is electrically connected to the light source, the output end of the constant current chip is electrically connected to the seventh pin of the control chip, The capacitor is connected in series between the control chips of the constant current chip.

As one of the improvements of the above technical solutions, the ground wire of the eighth pin of the control chip is provided with a ground terminal on the constant current chip, and the ground terminal is electrically connected to the eighth pin of the control chip.

As one of the improvements of the above technical solutions, a thermal relay and a varistor are connected on the power line.

A low-power LED lamp assembly, the outer side of the low-power LED lamp is provided with a lampshade, the lampshade is connected with a base, the low-power consumption LED lamp is installed on the base, and a wiring port is installed on the base, so the The low power consumption LED lamp is electrically connected with the wiring port.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The circuit layout is optimized, and the coordination between the control chip and the resistor ensures that the power factor PF is greater than 0.9, which reduces production costs while meeting industry requirements.

2. The control module and constant current module can keep the luminous flux of the LED lamp above 600lm.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

Figure 1 is a circuit diagram of the present utility model.

Figure 2 is a schematic structural diagram of the present invention.

In the picture: 1. Light source, 2. Power-on circuit, 3. Control module, 4. Constant current module, 5. Diode, 6. Thermal relay, 7. Varistor, 8. Wiring port, 9. Electrolytic capacitor, 10. Rectifier bridge, 11, LED light, 21, live wire, 22, neutral wire, 31, control chip, 32, first resistor, 33, second resistor, 34, third resistor, 35, fourth resistor, 36, fifth Resistor, 41, constant current chip, 42, capacitor, 101, base, 102, lampshade, 103, circuit board.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1 and FIG. 2. In the embodiment of the present invention, a low-power LED lamp includes a circuit board 103. The circuit board 103 is provided with a power-on circuit 2, and the power-on circuit 2 is connected with a light source 1 and a control module 3. And the constant current module 4, the control module 3 is electrically connected with the positive pole of the light source 1, the constant current module 4 is electrically connected with the negative pole of the light source 1, and the control module 3 is electrically connected with the constant current module 4. Specifically, the light source 1 is composed of several LEDs. The lamps 11 are formed in series, and the voltage is reduced by connecting the LED lamps 11 in series; the control module 3 includes: a first resistor 32, a second resistor 33, a third resistor 34, a fourth resistor 35, a fifth resistor 36, an electrolytic capacitor 9 and a control The chip 31 (the control chip 31 has eight pins); the constant current module 4 includes: a constant current chip 41 and a capacitor 42;

The above-mentioned energization circuit 2 is composed of the neutral wire 22 and the live wire 21. The live wire 21 is first connected to the thermal relay 6, and then connected to the varistor 7 (the other end of the varistor 7 is connected to the neutral wire 22), after which the live wire 21 and the neutral wire are connected. 22 is connected to the rectifier bridge 10, and the live wire 21 is connected to the first resistor 32, the second resistor 33, and the diode 5 in turn after being led out from the rectifier bridge 10, and a road is divided between the first resistor 32 and the second resistor 33 and the control module 3 The fifth pin and the sixth pin are connected, the zero line 22 is connected to the first pin of the control chip 31, the light source 1 and the constant current module 4 are on the same line and are connected in parallel with the electrolytic capacitor 9 and the third resistor 34 Between the diode 5 and the seventh pin of the control chip 31, the fourth resistor 35 and the fifth resistor 36 are connected in series between the first pin and the fourth pin of the control chip 31, and the second pin of the control chip 31 It is electrically connected on the line between the fourth resistor 35 and the fifth resistor 36 . The input end of the constant current chip 41 is electrically connected to the light source 1 (the negative electrode of the LED lamp 11 ), the output end of the constant current chip 41 is electrically connected to the seventh pin of the control chip 31 , and the capacitor 42 is connected in series to the control of the constant current chip 41 . Between the chips 31, the eighth pin of the control chip 31 is grounded, the seventh pin of the control chip 31 is electrically connected to the eighth pin, the constant current chip 41 is provided with a ground terminal, and the ground terminal is connected to the No. 1 pin of the control chip 31. Eight-pin electrical connection.

The outer side of the low-power LED lamp 11 is provided with a lampshade 102, the lampshade 102 is connected with a base 101, the low-power LED lamp 11 is installed on the base 101, the base 101 is installed with a wiring port 8, and the low-power LED lamp 11 is connected to the base 101. The wiring port 8 is electrically connected, and the low power consumption LED lamp 11 can be electrically connected to an external circuit through the wiring port 8 .

The model of the above-mentioned control chip 31 is DU8606 (or AP5103), and the model of the constant current chip 41 is SM2082EG, WS9621AN or NU501.

The circuit power of three different combinations of LED lamps is calculated as follows: 6*18V+12V+9V, 6*18V+9V*2, 6*18V+12V*2.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention.

Claims (9)

1. The low-power-consumption LED lamp comprises a circuit board, wherein a power-on circuit is arranged on the circuit board, and the low-power-consumption LED lamp is characterized in that a light source, a control module and a constant current module are connected to the power-on circuit, the control module is electrically connected with a positive pole of the light source, the constant current module is electrically connected with a negative pole of the light source, and the control module is electrically connected with the constant current module.

2. The low-power-consumption LED lamp as claimed in claim 1, wherein: the light source is formed by connecting a plurality of LED lamps in series, and the voltage reduction is realized by connecting the LED lamps in series.

3. The low-power-consumption LED lamp as claimed in claim 1, wherein: the control module comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, an electrolytic capacitor and a control chip, eight pins are arranged on the control chip, the first resistor, the second resistor and the light source are connected in series, the fifth pin and the sixth pin of the control chip are electrically connected to a circuit between the first resistor and the second resistor, the fourth resistor and the fifth resistor are connected in series between the first pin and the fourth pin of the control chip, and the second pin of the control chip is electrically connected to a circuit between the fourth resistor and the fifth resistor.

4. A low power consumption LED lamp as claimed in claim 3, wherein: and a diode is connected between the second resistor and the light source, the light source and the constant current module are on the same line and are connected between the diode and a seventh pin of the control chip in parallel with the electrolytic capacitor and the third resistor, and the seventh pin of the control chip is electrically connected with an eighth pin.

5. A low power consumption LED lamp as claimed in claim 3, wherein: the constant current module comprises: the light source is electrically connected with the light source, the output end of the constant current chip is electrically connected with the seventh pin of the control chip, and the capacitor is connected between the control chips of the constant current chip in series.

6. The low-power-consumption LED lamp according to claim 5, wherein: and the eighth pin of the control chip is grounded, the constant current chip is provided with a grounding end, and the grounding end is electrically connected with the eighth pin of the control chip.

7. The low-power-consumption LED lamp as claimed in claim 1, wherein: and the energizing circuit is connected with a thermal relay and a piezoresistor.

8. The low-power-consumption LED lamp as claimed in claim 1, wherein: and a rectifier bridge is connected to the power-on circuit.

9. A low-power LED lamp component, comprising the low-power LED lamp of claim 1, wherein a lampshade is arranged on the outer side of the low-power LED lamp, a base is connected to the lampshade, the low-power LED lamp is mounted on the base, a wiring port is mounted on the base, and the low-power LED lamp is electrically connected with the wiring port.

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