CN2870373Y - Adjustable energy-saving warning lights - Google Patents

Abstract

The utility model relates to the field of electronic technology, in particular to the structural improvement of an energy-saving warning lamp with adjustable stroboscopic frequency. It includes a rectifier circuit connected to the power supply, the rectifier circuit is connected to the strobe control circuit through a voltage stabilizing circuit, and a light-emitting diode is connected to the strobe control circuit, and the feature is that a can be connected to the strobe control circuit. Resistor R3 is adjusted; the strobe control circuit is a 555 time base circuit, and several parallel LED circuits are connected between the 555 time base circuit and the rectifier circuit. It mainly solves the technical problems existing in the prior art, such as complex structure, high power consumption, high noise during operation, and short service life; it provides a reasonable design, simple structure, adjustable strobe frequency, It also has energy-saving function, low power consumption, no noise when working, good shock resistance, and long service life.

Description

Adjustable energy-saving warning lights

technical field

The utility model relates to the field of electronic technology, in particular to the structural improvement of an energy-saving warning lamp with adjustable stroboscopic frequency.

Background technique

At present, the widely used warning lights usually adopt incandescent lamps. This kind of warning lights consumes a lot of power, makes a lot of noise when working, and has a short service life. People have carried out long-term exploration for this reason, have proposed various improvement schemes.

For example, Chinese patent literature discloses a long-acting energy-saving warning lamp (CN01217950.7), which includes a light-emitting diode, a rectifier circuit and a stroboscopic control circuit, and the stroboscopic control circuit is composed of a thyristor, a diode, a capacitor, and a resistor. The current-limiting resistor is connected to the rectifier circuit, and then the anode is connected to the light-emitting diode, and then connected in series with the thyristor. Connect the negative pole of the power supply through the voltage dividing resistor, and connect the positive pole of the capacitor through the bypass resistor, and connect the negative poles of the thyristor and the capacitor to the negative pole of the power supply. This solution uses light-emitting diodes as light sources, which reduces power consumption during use and has low noise. However, when working, the strobe frequency of the LEDs is difficult to adjust, and it does not have the function of cyclically lighting the LEDs. And because the discharge is not exhausted, there will be afterglow when it is just extinguished.

Contents of the invention

The utility model mainly provides an adjustable energy-saving warning light with reasonable design, simple structure, adjustable strobe frequency, energy-saving function, low power consumption, no noise during operation, good shock resistance and long service life. , to solve the technical problems existing in the prior art that the structure is relatively complex, the power consumption is large, the noise is large during operation, and the service life is short.

Another purpose of this utility model is to provide an adjustable energy-saving warning lamp capable of adjusting the frequency of strobe and light-emitting diodes in cycles, so as to solve the difficulty in adjusting the strobe frequency of light-emitting diodes in the prior art, and not It has the function of lighting up the light-emitting diodes in a cycle, and there will be technical problems such as afterglow when it is just turned off.

The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: the adjustable energy-saving warning lamp includes a rectifier circuit connected to the power supply, and the rectifier circuit is connected with the stroboscopic control circuit through a voltage stabilizing circuit. A light-emitting diode is connected to the circuit, which is characterized in that an adjustable resistor R3 is connected to the stroboscopic control circuit; the stroboscopic control circuit is a 555 time base circuit, between the 555 time base circuit and the rectification circuit There are several parallel LED circuits connected between them.

The stroboscopic control circuit of the utility model adopts an integrated 555 time base circuit. The structure is effectively simplified. And the strobe frequency of the LED can be adjusted through R3. The light-emitting diode circuit adopts a parallel structure to effectively improve the stability of work, making each light-emitting diode circuit relatively independent. Even if one of the roads fails, it can be used without causing the entire warning light to fail. Here you can design the number of light emitting diode circuits according to your needs.

As another solution, the 555 time base circuit is connected to the above-mentioned several LED circuits through a distributor.

Preferably, the allocator is a twelve-digit allocator 4017 . The distributor is used to control the operation of the LED circuit.

Preferably, the light-emitting diode circuit includes several light-emitting diodes connected in series, and a triode for controlling the operation of the light-emitting diode circuit. When the triode is turned on, the light-emitting diode circuit works, and when the triode is turned off, the light-emitting diode circuit does not work.

As a preference, the pin 4 and pin 8 of the 555 time base circuit are connected to the output terminal of the voltage stabilizing circuit, the pin 2 and pin 6 are grounded through a capacitor E2, and the pin 7 and pin 8 are connected with Adjustable resistor R3, resistor R4 is connected between pin 7 and pin 6, pin 5 is grounded through a capacitor C2, pin 1 is grounded, and pin 3 is connected to the LED circuit.

As a preference, the pin 4 and pin 8 of the 555 time base circuit are connected to the output terminal of the voltage stabilizing circuit, the pin 2 and pin 6 are grounded through a capacitor E2, and the pin 7 and pin 8 are connected with Adjustable resistor R3, resistor R4 is connected between pin 7 and pin 6, pin 5 is grounded through a capacitor C2, pin 1 is grounded, and pin 3 is connected to the distributor.

As a preference, the pin 14 of the distributor is connected to the pin 3 of the 555 time base circuit, the pin 15 of the distributor is connected to the output terminal of the voltage stabilizing circuit, and the pin 15 and the pin 7 of the distributor are connected through A diode D5 is connected, the pin 13 of the distributor is grounded, and the output pins of the distributor are respectively connected to a light-emitting diode circuit.

Preferably, a step-down circuit is connected between the rectification circuit and the power supply, and the step-down circuit includes a resistor R1 and a capacitor C1 connected in parallel.

Preferably, the voltage stabilizing circuit includes a grounded voltage stabilizing tube Z1, which is then output through a resistor R2, a parallel connected grounded voltage stabilizing tube Z2 and a filter capacitor E1.

Therefore, the utility model has the following advantages: 1, reasonable design, simple structure, easy to implement; 2, low power consumption, no noise during work, good shock resistance, and long service life; 3, the frequency of strobe can be adjusted, And it has the function of cyclically lighting up the light-emitting diodes, so that it can be flexibly applied according to different situations.

Description of drawings

Accompanying drawing 1 is the electrical structural block diagram of the utility model embodiment 1;

Accompanying drawing 2 is the circuit structure diagram of the utility model embodiment 1;

Accompanying drawing 3 is the electrical structural block diagram of the utility model embodiment 2;

Accompanying drawing 4 is the circuit structure diagram of the utility model embodiment 2.

In the figure, an AC power source 1, a step-down circuit 2, a rectifier circuit 3, a voltage stabilizing circuit 4, a strobe control circuit 5, a light-emitting diode circuit 6, and a distributor 7.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Example 1:

As shown in FIGS. 1 and 2 , the adjustable energy-saving warning lamp includes a step-down circuit 2 connected to an AC power source 1 . The step-down circuit 2 is connected with the rectification circuit 3 . The rectifier circuit 3 is connected to the strobe control circuit 5 through a voltage stabilizing circuit 4 , and three parallel LED circuits 6 are connected between the strobe control circuit 5 and the rectifier circuit 3 . The light-emitting diode circuit adopts a parallel structure to effectively improve the stability of work, making each light-emitting diode circuit relatively independent. Even if one of the roads fails, it can be used without causing the entire warning light to fail.

The step-down circuit 2 includes a resistor R1 and a capacitor C1 connected in parallel. The rectifier circuit 3 is composed of four diodes D1, D2, D3 and D4. The voltage stabilizing circuit 4 includes a grounded voltage stabilizing tube Z1, which is then output through a resistor R2 and a grounded voltage stabilizing tube Z2. The strobe control circuit 5 is an integrated 555 time base circuit. An adjustable resistor R3 is connected to the strobe control circuit 5. Pin 4 and pin 8 of the 555 time base circuit are connected to the output terminal of the voltage stabilizing circuit 4, and pin 2 and pin 6 are grounded through a capacitor E2 , an adjustable resistor R3 is connected between pin 7 and pin 8, a resistor R4 is connected between pin 7 and pin 6, pin 5 is grounded through a capacitor C2, pin 1 is grounded, pin 3 is connected to The LED circuit 6 is connected. The 555 time base circuit is the LM555 chip.

Pin 3 of the 555 time base circuit is respectively connected to one LED circuit 6 through resistors R5, R6 and R7. The three LED circuits 6 are respectively: two LEDs L1 and L4 connected in series, a resistor R9 connected in series with the LEDs, and a triode N1 for controlling the operation of the LED circuit 6; two LEDs connected in series L2 and L5, a resistor R10 connected in series with the LED, and a triode N2 used to control the operation of the LED circuit 6; two LEDs L3 and L6 connected in series, a resistor R11 connected in series with the LED, and a transistor N2 used to control the LED circuit 6 working transistor N3.

When working, the input AC power is first stepped down by capacitor C1 and resistor R2, rectified by D1, D2, D3, and D4, and then passed through the voltage regulator tube Z1 after rectification, and then through the resistor R2, and the parallel and grounded voltage regulator tube Z2 and filter capacitor E1 provides power for the 555 time base circuit after voltage stabilization. The 555 time base circuit generates a pulse signal to control the on and off of the triode N1, N2, N3, thereby controlling the light emitting diode circuit 6 to work. By adjusting the adjustable resistor R3 to control the frequency of the strobe.

Example 2:

As shown in Fig. 3 and Fig. 4, in the utility model, the pin 3 of the 555 time base circuit is connected with the pin 14 of the distributor 7. The allocator 7 is a ten-digit allocator 4017. The pin 15 of the distributor 7 is connected to the output terminal of the voltage stabilizing circuit 2 through a capacitor C3. The pin 15 of the distributor 7 is connected to the pin 7 through a diode D5 , the pin 13 of the distributor 7 is grounded, and the output pins of the distributor 7 are respectively connected to a light emitting diode circuit 6 . That is, pin 3, pin 2, and pin 4 of the distributor 7 are respectively connected to a light emitting diode circuit 6 through resistors R6, R7, and R8. All the rest are the same as in Example 1, and will not be repeated herein.

When working, the pulse signal generated by the time base circuit is input to the twelve-digit divider 7 for counting to control the conduction and cut-off of the transistors N1, N2, N3, so that the light-emitting diodes are cyclically lit and extinguished.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although terms such as AC power supply 1, step-down circuit 2, rectifier circuit 3, voltage stabilizing circuit 4, strobe control circuit 5, light-emitting diode circuit 6, and distributor 7 are frequently used in this paper, it does not exclude the use of other terms. possibility. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (10)

1. adjustable economical warning lamp, comprise the rectification circuit (3) that links to each other with power supply (1), rectification circuit (3) links to each other with stroboscopic control circuit (5) by a voltage stabilizing circuit (4), on stroboscopic control circuit (5), be connected with light-emitting diode, it is characterized in that on described stroboscopic control circuit (5), being connected with an adjustable resistor R3; Described stroboscopic control circuit (5) is 555 time-base circuits, is connected with the circuit of LED (6) of some parallel connections between 555 time-base circuits and rectification circuit (3).

2. adjustable economical warning lamp according to claim 1 is characterized in that described 555 time-base circuits link to each other with above-mentioned several circuit of LED (6) by a distributor (7).

3. adjustable economical warning lamp according to claim 2 is characterized in that at described distributor (7) be duodecimal notation distributor 4017.

4. according to claim 1 or 2 or 3 described adjustable economical warning lamps, it is characterized in that described circuit of LED (6) comprises the light-emitting diode of some mutual series connection, and the triode that is used to control circuit of LED (6) work.

5. according to claim 1 or 3 described adjustable economical warning lamps, the pin 4 that it is characterized in that described 555 time-base circuits links to each other with the output of pin 8 with voltage stabilizing circuit (4), pin 2 and pin 6 are by an electric capacity E2 ground connection, be connected with adjustable resistor R3 between pin 7 and the pin 8, be connected with resistance R 4 between pin 7 and the pin 6, pin 5 passes through capacitor C 2 ground connection, pin 1 ground connection, and pin 3 links to each other with circuit of LED (6).

6. according to claim 1 or 2 or 3 described adjustable economical warning lamps, the pin 4 that it is characterized in that described 555 time-base circuits links to each other with the output of pin 8 with voltage stabilizing circuit (4), pin 2 and pin 6 are by an electric capacity E2 ground connection, be connected with adjustable resistor R3 between pin 7 and the pin 8, be connected with resistance R 4 between pin 7 and the pin 6, pin 5 passes through capacitor C 2 ground connection, pin 1 ground connection, and pin 3 links to each other with distributor (7).

7. adjustable economical warning lamp according to claim 6, the pin 14 that it is characterized in that described distributor (7) links to each other with the pin 3 of 555 time-base circuits, the pin 15 of distributor (7) links to each other with the output of voltage stabilizing circuit (2), link to each other by a diode D5 between the pin 15 of distributor (7) and the pin 7, pin 13 ground connection of distributor (7), the output pin of distributor (7) connects a circuit of LED (6) respectively.

8. according to claim 1 or 2 or 3 described adjustable economical warning lamps, it is characterized in that being connected with a reduction voltage circuit (2) between described rectification circuit (3) and the power supply, described reduction voltage circuit (2) comprises parallel resistor R1 and capacitor C 1.

9. adjustable economical warning lamp according to claim 6 is characterized in that being connected with a reduction voltage circuit (2) between described rectification circuit (3) and the power supply, and described reduction voltage circuit (2) comprises parallel resistor R1 and capacitor C 1.

10. according to claim 1 or 2 or 3 described adjustable economical warning lamps, it is characterized in that described voltage stabilizing circuit (4) comprises the voltage-stabiliser tube Z1 of a ground connection, again through resistance R 2, and the voltage-stabiliser tube Z2 of parallel connection and ground connection and filter capacitor E1 output.

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