CN216391468U - Light-adjustable stroboscopic-proof lamp strip - Google Patents

Abstract

The utility model relates to the technical field of illumination, in particular to a dimmable and stroboscopic-proof lamp strip which comprises a regulating device, a plurality of control devices and lamp strips in one-to-one correspondence with the control devices; the utility model uses a control device on the lamp belt, and an auxiliary rectification circuit contained in the control device mainly comprises rectifier diodes D1 and D2, a current-limiting resistor R1, a current-discharging resistor R2, a filter capacitor C1 and a voltage-stabilizing diode D3. In the whole auxiliary rectification circuit, the resistor R2 and the capacitor C1 form a leakage loop, so that when the conduction current is small, the C1 energy can be timely released, and the condition of false conduction of a chip is avoided.

Description

A dimmable anti-strobe light strip

technical field

The utility model relates to the technical field of lighting, in particular to a dimmable anti-stroboscopic light strip.

Background technique

Today, when more and more attention is paid to energy conservation and environmental protection, green lighting has become a hot topic in the lighting field. LED has quickly occupied a place in the lighting market due to its high luminous efficiency, long life, and especially strong energy saving. Compared with the traditional constant-power LED components, the dimmable LED components are more prominent because of their LED energy-saving effect, and the brightness and color of the light emitted by themselves can be changed according to the needs, especially when there are adjustable LED components on the market. After the LED light strip, it quickly became popular in different fields.

The controllable dimming LED lamp is mainly composed of a dimmer, a rectifier circuit, an APFC circuit and an LED light string. Compared with constant-power LED lights, dimmers, as an AC switching device, may cause LED lights to flicker when used in conjunction with LED lights. The main reasons are:

Abnormal shutdown of the APFC chip. When adjusting the dimmer, if the APFC chip power supply voltage obtained after rectification and voltage division is just around the chip's turn-on threshold, the APFC chip will be repeatedly turned on and off abnormally, and the driver will be turned on and off repeatedly. If the on-off frequency of the driver is too low, the LED light will flash.

Utility model content

technical problems solved

Aiming at the above-mentioned shortcomings of the prior art, the present utility model provides a dimmable anti-stroboscopic light strip, which can effectively solve the problem of flickering of LED lights in the prior art.

Technical solutions

In order to achieve the above purpose, the present invention is realized through the following technical solutions:

The utility model provides a dimmable anti-stroboscopic light strip, which comprises an adjustment device, a plurality of control devices and a light strip corresponding to the control devices one-to-one;

Wherein, the adjusting device is installed on the light strip to adjust the spacing of the light strip, the adjusting device includes a clip, a guide rail and a first screw, and the clip is slidably fitted on the light strip, The guide rail is slidably fitted into the clip, the first screw is screwed to the light strip, and one end of the first screw abuts on the guide rail;

The control device is electrically connected to the light strip, the control device is connected to a power source, generates a driving electric signal and sends it to the light strip, and the light strip receives the driving electric signal sent by the control device, and generates a driving electric signal according to the driving electric signal. The electrical signal emits light.

Further, the light strip includes an LED light strip, and the light strip is electrically connected to the control device to control the magnitude of the driving electric signal received by the LED light strip, so that the LED light strip can be driven according to the driving electric signal. The size emits light of different brightness.

Further, the control device includes a controller, a dimmer, a rectifier circuit, an auxiliary rectifier circuit, an auxiliary bleeder circuit and an APFC chip, the rectifier circuit is electrically connected to the dimmer, and the APFC chip is electrically connected to the The rectifier circuit is electrically connected, the LED light strip is electrically connected to the APFC chip, the auxiliary leakage circuit is electrically connected between the APFC chip and the rectifier circuit, the auxiliary rectifier circuit and the rectifier circuit Electrical connection.

Further, the controller is electrically connected to the power source to identify the voltage of the power source, and select a path to connect according to the voltage of the power source.

Further, the rectifier circuit is a bridge rectifier circuit.

Further, the control device includes a main board, the main board, a spring, two sliding plates and a conductor, and a chute is arranged at intervals on the main board, and the sliding grooves are slidably matched with two sliding plates that are slidable. Fitted in the chute, the spring is installed between the two sliding plates, the two ends of the spring are respectively fixed to the two sliding plates, the conductor is fixed to the bottom surface of the sliding plates, and The conductor is electrically connected to the controller, the top of the chute is screwed with a second screw, and one end of the second screw is rotatably mounted on the slide plate.

beneficial effect

Compared with the known public technology, the technical solution provided by the present utility model has the following beneficial effects:

The utility model uses a control device on the lamp strip, and the auxiliary rectifier circuit included in the control device is mainly composed of rectifier diodes D1 and D2, a current limiting resistor R1, a bleeder resistor R2, a filter capacitor C1 and a zener diode D3. The rectifier diodes D1 and D2 and the two rectifier diodes inside the rectifier bridge form a new rectifier bridge, which converts the input voltage after the action of the dimmer into direct current, and then supplies power to the APFC chip after being divided by resistors R1 and R2. Capacitor C1 filters the power supply of the APFC chip to obtain a power supply with less ripple. The capacitance value of C1 is small, so that the power supply voltage can reflect the on and off states of the dimmer in time, so that it can experience a work and turn off within a half cycle of the power frequency. In the whole auxiliary rectifier circuit, the resistor R2 and the capacitor C1 form a leakage circuit to ensure that the energy of C1 can be released in time when the on-current is small, so as to avoid the mis-on of the chip.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only 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 effort.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is the sectional view of the utility model;

Fig. 4 is the enlarged view of A place of the utility model;

Fig. 5 is the enlarged view of B place of the utility model;

Fig. 6 is a partial enlarged view of the utility model;

7 is a schematic diagram of the installation structure of the light strip of the present invention;

8 is a schematic structural diagram of a control circuit of the present invention;

9 is a schematic structural diagram of an auxiliary rectifier circuit of the present invention;

10 is a schematic structural diagram of an auxiliary leakage circuit of the present invention;

The symbols in the figure represent: 1-light strip; 2-clamp; 3-guide rail; 4-first screw; 5-mainboard; 6-chute; 7-second screw; 8-spring; 9-slide; 10 -conductor.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, embodiments of the present invention. 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.

The present utility model will be further described below in conjunction with the embodiments.

Example:

As shown in Figure 1-6, a dimmable anti-stroboscopic light strip includes an adjustment device, a plurality of control devices, and a light strip 1 corresponding to the control devices one-to-one;

The adjusting device is installed on the light strip 1 to adjust the spacing of the light strip 1. The adjusting device includes a clip 2, a guide rail 3 and a first screw 4. The clip 2 is slidably fitted on the light strip 1, and the guide rail 3 is slidable. fit into the clip 2, the first screw 4 is screwed to the light strip 1, and one end of the first screw 4 is abutted on the guide rail 3; when in use, the guide rail 3 is fixed at the installation place, and the guide rail 3 is installed as required. Connect the required number of clips 2 in series. The clip 2 is made of rubber material and has a certain deformation recovery ability. When the clip 2 and the light strip 1 are assembled, install the light strip 1 in the gap of the clip 2, and the clip 2 can be Provide elastic support and buffer protection for the light strip 1. After the light strip 1 and the clip 2 are combined, due to the sliding cooperation between the two, the light strip 1 and the clip 2 can be adjusted to a certain extent. After the adjustment is completed, use the first screw. 4. The light strip 1, the clip 2 and the guide rail 3 can be locked tightly.

The control device includes a control circuit and a control structure. The control structure includes a main board 5, a main board 5, a spring 8, two sliding plates 9 and a conductor 10. The main board 5 is provided with a chute 6 at intervals. The slide plate 9 is slidably fitted in the chute 6, the spring 8 is installed between the two slide plates 9, and the two ends of the spring 8 are respectively fixed to the two slide plates 9, the conductor 10 is fixed to the bottom surface of the slide plate 9, and the chute 6 The top is screwed with a second screw 7, and one end of the second screw 7 is rotatably mounted on the slide plate 9. The control structure is used in conjunction with the adjustment device. When the spacing of the light strip 1 is adjusted, the connection between the light strip 1 and the power Corresponding changes should also be made, and the utility model utilizes the feature that the provided chute 6 can slide on the wire, the chute 6 is combined with the wire, and the chute 6 can be made on the wire according to the adjustment of the distance between the light strips 1. Move accordingly, and then use the second screw 7 to exert pressure on the sliding plate 9. After the sliding plate 9 is stressed, the sharp conductor 10 will exert pressure on the wire, and the conductor 10 will pierce the insulation layer of the wire and contact the conductive wire inside the wire. , so as to draw out the electrical energy on the wire.

As shown in FIG. 7 , the control device is electrically connected to the light strip 1, the control device is connected to the power source, generates a driving electric signal and sends it to the light strip 1, and the light strip 1 receives the driving electric signal sent by the control device, and emits a driving electric signal according to the driving electric signal. light. The light strip 1 is an LED light strip, and the LED light strip is electrically connected to the control device to control the magnitude of the driving electric signal received by the LED light strip, so that the LED light strip emits light of different brightness according to the magnitude of the driving electric signal.

As shown in Figures 8-10, the control circuit is arranged on the main board, which includes a controller, a dimmer, a rectifier circuit, an auxiliary rectifier circuit, an auxiliary bleeder circuit and an APFC chip. The controller is electrically connected to the conductor 10 to identify The voltage of the power supply is connected according to the voltage of the power supply, the dimmer is electrically connected to the controller to control the brightness of the LED strip, the rectifier circuit is electrically connected to the dimmer, the APFC chip is electrically connected to the rectifier circuit, and the LED light The belt is electrically connected with the APFC chip, the auxiliary leakage circuit is electrically connected between the APFC chip and the rectifier circuit, the auxiliary rectifier circuit is electrically connected with the rectifier circuit, and the rectifier circuit is a bridge rectifier circuit.

In order to eliminate the flickering phenomenon of the LED, the utility model adopts an auxiliary rectifying circuit. The basic principle of the auxiliary rectifier circuit is shown in Figure 9, which is mainly composed of rectifier diodes D1 and D2, current limiting resistor R1, bleeder resistor R2, filter capacitor C1 and Zener diode D3. The rectifier diodes D1 and D2 and the two rectifier diodes inside the rectifier bridge form a new rectifier bridge, which converts the input voltage after the action of the dimmer into direct current, and then supplies power to the APFC chip after being divided by resistors R1 and R2. Capacitor C1 filters the power supply of the APFC chip to obtain a power supply with less ripple. The capacitance value of C1 is small, so that the power supply voltage can reflect the on and off states of the dimmer in time, so that it can experience a work and turn off within a half cycle of the power frequency. In the whole auxiliary rectifier circuit, the resistor R2 and the capacitor C1 form a leakage circuit to ensure that the energy of C1 can be released in time when the on-current is small, so as to avoid the mis-on of the chip.

If the dimmer is abnormally cut off. When the power is first turned on, the conduction angle is small. Due to the existence of non-pure resistive devices such as capacitors and inductors in the driving circuit, the input current will inevitably oscillate to a certain extent. When the oscillation makes the input current less than the maintenance current of the dimmer, the adjustment When the dimmer is turned off, the LED light is turned off, and the LED light strip is turned off; when the oscillation causes the input current to be greater than the on-current of the dimmer, the dimmer is turned on and the LED light is illuminated. If the on-off frequency of the dimmer is too low, the LED light will flicker. In the control circuit of the utility model, an auxiliary leakage circuit is set up which is composed of a capacitor C2, a resistor R3 and a capacitor C3. The auxiliary leakage circuit can reduce the oscillation degree of the input current to a certain extent, and avoid the situation that the dimmer is turned off by mistake.

The above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be used for the foregoing implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. A dimmable anti-stroboscopic light strip, characterized in that it comprises an adjustment device, a plurality of control devices and a light strip (1) corresponding to the control devices one-to-one; Wherein, the adjusting device is installed on the light strip (1) to adjust the spacing of the light strip (1), and the adjusting device comprises a clip (2), a guide rail (3) and a first screw (4) , the clip (2) is slidably fitted on the light strip (1), the guide rail (3) is slidably fitted into the clip (2), and the first screw (4) is screwed to the light strip (1), one end of the first screw (4) abuts on the guide rail (3); The control device is electrically connected to the light strip (1), the control device is connected to a power source, generates a driving electrical signal and sends it to the light strip (1), and the light strip (1) receives the transmission from the control device the driving electrical signal, and emit light according to the driving electrical signal. 2. A dimmable anti-stroboscopic light strip according to claim 1, wherein the light strip (1) comprises an LED light strip and a dimmer, and the light strip (1) is connected to the The control device is electrically connected, and the dimmer is electrically connected to the LED light strip to control the magnitude of the driving electrical signal received by the LED light strip, so that the LED light strip emits light with different brightness according to the magnitude of the driving electrical signal. light. 3. A dimmable anti-stroboscopic light strip according to claim 2, wherein the control device comprises a controller, a dimmer, a rectifier circuit, an auxiliary rectifier circuit, an auxiliary bleeder circuit and an APFC chip , the controller is electrically connected to the dimmer, the rectifier circuit is electrically connected to the dimmer, the APFC chip is electrically connected to the rectifier circuit, and the LED strip is electrically connected to the APFC chip connected, the auxiliary leakage circuit is arranged between the APFC chip and the rectifier circuit. 4. The dimmable anti-stroboscopic light strip according to claim 3, wherein the controller is electrically connected to the power supply to identify the voltage of the power supply and determine the voltage of the power supply according to the voltage of the power supply. Routing is connected. 5 . The dimmable anti-stroboscopic light strip according to claim 3 , wherein the rectifier circuit is a bridge rectifier circuit. 6 . 6. A dimmable anti-stroboscopic light strip according to claim 3, wherein the control device comprises a main board (5), the main board (5), a spring (8), two sliding plates ( 9) and the conductor (10), the main board (5) is provided with a chute (6) at intervals, and the chute (6) is slidably matched with, and the two sliding plates (9) are slidably matched with each other. In the chute (6), the spring (8) is installed between the two sliding plates (9), and the two ends of the spring (8) are respectively fixed to the two sliding plates (9) , the conductor (10) is fixed on the bottom surface of the slide plate (9), and the conductor (10) is electrically connected to the controller, and the top of the chute (6) is screwed with a second screw (7) , one end of the second screw (7) is rotatably mounted on the slide plate (9).

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