CN211509355U

CN211509355U - LED (light emitting diode) anti-micro-brightness circuit and LED lamp

Info

Publication number: CN211509355U
Application number: CN201922363482.8U
Authority: CN
Inventors: 缪红漫
Original assignee: Hunan Yaou Electronic Technology Co Ltd
Current assignee: Hunan Yaou Electronic Technology Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-15
Anticipated expiration: 2029-12-25

Abstract

The LED anti-micro-lighting circuit comprises an inductance coil with an iron core, wherein the inductance coil is connected between a live wire and a zero line of the LED lamp. The utility model discloses still include a LED lamps and lanterns. On one hand, the utility model can effectively absorb leakage current, has very simple circuit structure and low cost, and can be suitable for any LED lamp; on the other hand, if the LED lamp is bought, a user can directly connect the LED anti-micro-lighting circuit with the shell with a connector on the existing LED lamp, and does not need to find a person with professional electrician knowledge to operate, so that the LED lamp is not only practical, but also safe.

Description

LED (light emitting diode) anti-micro-brightness circuit and LED lamp

Technical Field

The utility model relates to the technical field of lighting fixtures, especially a little bright circuit and LED lamps and lanterns are prevented to LED.

Background

The LED lamp is widely applied at present, and has the advantages of low energy consumption, high brightness, environmental protection and the like, so that the LED lamp can replace incandescent lamps and lamp tubes. The existing LED lamp is still slightly bright after being powered off, and particularly in the evening, the LED lamp is still uncomfortable when being kept in a slightly bright state after being powered off.

The main reason that the LED lamp is still slightly bright after power failure is that the N zero line is connected with the switch, and when the switch is disconnected, the lamp is still connected with the live wire and can emit weak light. Existing solutions are usually retrofitted to let the switch control the live line. However, the on-off control live wire lamp still can have the phenomenon of shining a little, and current solution is usually to add an auxiliary relay, and the relay coil is advanced to the zero line, and the live wire advances the switch, and the switch comes out and advances the relay coil, follows the relay zero line, and the live wire advances relay normally open contact respectively, and the relay comes out and advances the lamp for relay control zero line live wire solves above-mentioned problem.

However, the above solution makes the structure more complicated, on one hand, it will change the original circuit connection structure of the LED lamp, resulting in increased cost and complicated operation; on the other hand, if the LED lamp is bought, the problem cannot be solved by the buyer, and the buyer needs a person with professional electrician knowledge to operate the LED lamp, so that the LED lamp is not only impractical but also unsafe.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the above-mentioned not enough of prior art and providing a simple structure, practical convenient LED prevents slightly bright circuit and LED lamps and lanterns.

The technical scheme of the utility model is that:

the utility model relates to a LED prevents slightly bright circuit, a serial communication port, including the inductance coil who takes the iron core, inductance coil connects between the live wire and the zero line of LED lamps and lanterns.

And the resistor is connected with the inductance coil in series and is connected between the live wire and the zero line in parallel.

Alternatively, a capacitor is also included, connected in series with the inductor coil and in parallel between the live and neutral wires.

Alternatively, the high-voltage power supply further comprises a bridge rectifier module and a capacitor, the live wire is connected with a voltage input end of the bridge rectifier module through the capacitor, the other voltage input end of the bridge rectifier module is connected with a zero line, and the inductance coil is connected between a voltage output end of the bridge rectifier module and a grounding end.

Alternatively, it consists of only an inductor coil with a core.

Furthermore, the LED anti-micro-lighting circuit is integrated in a shell, and a power line of the LED anti-micro-lighting circuit extends out of the shell.

Further, a power line of the LED anti-micro-lighting circuit is connected with a connector of a power line of the LED lamp.

The utility model relates to a LED lamp, include as aforementioned any one LED prevent little bright circuit.

Further, the LED lamp comprises an LED module, the LED module comprises an LED control panel, and the LED anti-micro-lighting circuit is connected with a power supply end of the LED control panel.

The utility model has the advantages that: on one hand, the leakage current can be effectively absorbed, and the circuit structure is very simple, the cost is low, and the circuit is suitable for any LED lamp; on the other hand, if the LED lamp is bought, a user can directly connect the LED anti-micro-lighting circuit with the shell with a connector on the existing LED lamp, and does not need to find a person with professional electrician knowledge to operate, so that the LED lamp is not only practical, but also safe.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention

Fig. 4 is a schematic structural diagram of embodiment 4 of the present invention;

fig. 5 is a schematic block circuit diagram of embodiment 5 of the present invention.

Detailed Description

The invention will be described in further detail with reference to the drawings and specific examples.

Example 1

As shown in fig. 1: the LED anti-micro-bright circuit comprises an inductance coil L1 with an iron core, wherein the inductance coil L1 is connected between a live wire L and a zero wire N of an LED lamp in parallel.

When a power switch of the LED lamp is switched off, a closed loop is formed between the inductance coil L1 and a live wire and a zero line, and the leakage current of the LED is absorbed by the inductance coil L1, so that dim light of the LED after power failure is eliminated; when the power switch is closed, the inductor L1 does not affect the original brightness of the LED.

Example 2

As shown in fig. 2: the utility model provides a little bright circuit is prevented to LED, includes inductance coils L2 and the resistance R of band iron core, resistance R and inductance coils L2 series connection, and connect in parallel between live wire L and zero line N.

The resistor R and the inductance coil L2 absorb the leakage current of the LED together, so that dim light of the LED after power failure is eliminated; when the power switch is closed, the LED brightness is not affected because the inductance coil L2 and the resistor R are connected in parallel with the LED.

Example 3

As shown in fig. 3: the LED anti-micro-bright circuit comprises an inductance coil L3 with an iron core and a capacitor C1, wherein the capacitor C1 is connected with the inductance coil L3 in series and is connected between a live wire L and a zero wire N in parallel.

The capacitor C1 and the inductance coil L3 absorb leakage current of the LED together, and the capacitor stores electricity, so that dim light of the LED after power failure is eliminated.

Example 4

As shown in fig. 4: the utility model provides a little bright circuit is prevented to LED, includes bridge rectifier module H, electric capacity C2 and the inductance coils L4 of taking the iron core, and the live wire L warp of LED lamps and lanterns the voltage input end of bridge rectifier module H is connected to electric capacity C2, and the zero line N of LED lamps and lanterns is connected to another voltage input end of bridge rectifier module H, be connected between the voltage output end of bridge rectifier module H and the earthing terminal inductance coils L4.

Because the alternating current is circularly changed in positive and negative polarities, when the positive half cycle is carried out, and the side, connected with a live wire L, of the capacitor C2 is assumed to be the positive polarity, the alternating current sequentially passes through the capacitor C2, the diode D2, the inductance coil L4 and the diode D3 to form a loop, and the leakage current of the LED is absorbed together through the capacitor C2 and the inductance coil L4, so that the dim light of the LED after power failure is eliminated; when the side of the capacitor C2 connected with the live wire L is a negative electrode, alternating current sequentially passes through the diode D4, the inductor L4, the diode D1 and the capacitor C2 to form a loop, and the leakage current of the LED is absorbed by the capacitor C2 and the inductor L4 together, so that dim light of the LED after power failure is eliminated.

In summary, the four schemes can eliminate dim light of the LED after power failure and effectively absorb leakage current; moreover, the circuit structure is very simple, and is applicable to any LED lamps.

Example 5

As shown in fig. 5: an LED lamp comprises the LED anti-micro-lighting circuit in any one of the embodiments 1-4. The LED anti-micro-bright circuit is integrated in a shell, a power line of the LED anti-micro-bright circuit extends out of the shell, the power line of the existing LED lamp is usually connected with a connector and is connected with a fire wire end L and a zero line end N on one side of the connector, the power line of the LED anti-micro-bright circuit of the embodiment is directly connected with the fire wire end L and the zero line end N on the side of the connector and is directly inserted into the connector, and the other side of the connector is connected with a 220V power supply through a power switch S.

On one hand, the circuit of the original LED lamp is not required to be improved, and the product is only required to be connected with the plug connector of the LED lamp; on the other hand, even if the LED lamp is bought, the user can also solve the problem of power-off and slight brightness of the LED lamp by himself through the product, and the safety is high.

Example 6

The LED lamp comprises an LED module, wherein the LED module comprises an LED control panel, and an LED anti-micro-lighting circuit is connected with a power supply end of the LED control panel in parallel.

Namely, the present solution is different from embodiment 5 in that the LED anti-dim-lighting circuit does not need to be manufactured as a product, but is directly soldered to both ends of the power source terminal of the existing LED control board. Because the power ends of the LED control panel are the live wire end and the zero line end and are connected with the commercial power through the power switch, the original circuit structure of the LED lamp is not changed, and the LED anti-micro-lighting circuit only needs to be welded on the power end of the LED control panel through a wire, so that the LED lamp is very simple, and the problem of micro-lighting of the LED lamp when the LED lamp is powered off is solved.

Claims

1. The utility model provides a little bright circuit is prevented to LED which characterized in that, includes the inductance coil of taking the iron core, inductance coil connects between the live wire of LED lamps and lanterns and zero line for after the switch of LED lamps and lanterns breaks off, through the leakage current in the inductance coil absorption circuit, eliminate little bright.

2. The LED anti-dim circuit according to claim 1, further comprising a resistor connected in series with the inductor and connected in parallel between the live line and the neutral line.

3. The LED anti-blooming circuit of claim 1 further comprising a capacitor connected in series with the inductor and in parallel between the hot and neutral wires.

4. The LED anti-dim-bright circuit according to claim 1, further comprising a bridge rectifier module and a capacitor, wherein the live wire is connected to a voltage input terminal of the bridge rectifier module through the capacitor, another voltage input terminal of the bridge rectifier module is connected to a zero line, and the inductor is connected between a voltage output terminal of the bridge rectifier module and a ground terminal.

5. The LED anti-blooming circuit of claim 1 consisting only of an inductor coil with an iron core.

6. The LED circuit of any one of claims 1 to 5, wherein the LED circuit is integrated into a housing, and a power line of the LED circuit extends from the housing.

7. The LED circuit of claim 6, wherein the power line of the LED circuit is connected to a connector of the power line of the LED lamp.

8. An LED lamp, characterized in that, the LED lamp comprises the LED anti-micro-lighting circuit as claimed in any one of claims 1 to 7.

9. The LED lamp according to claim 8, wherein the LED lamp comprises an LED module, the LED module comprises an LED control board, and the LED anti-micro-lighting circuit is connected with a power supply end of the LED control board.