CN209930569U

CN209930569U - Constant-current dimmable LED lamp strip

Info

Publication number: CN209930569U
Application number: CN201920427060.XU
Authority: CN
Inventors: 曾纪亮; 甘振恩; 朱保科
Original assignee: SHENZHEN COOLIGHT OPT-ELE Co Ltd
Current assignee: SHENZHEN COOLIGHT OPT-ELE Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-01-10
Anticipated expiration: 2029-03-29

Abstract

The utility model relates to a technical field of lamps and lanterns, more specifically relates to a constant current LED lamp strip of can adjusting luminance. A constant-current dimmable LED lamp bar comprises a power supply input end and a grounding end, wherein N circuits are connected between the power supply input end and the grounding end in parallel; each circuit is provided with a plurality of lamp beads, each circuit is provided with a built-in constant-current dimming IC lamp bead, and the built-in constant-current dimming IC lamp beads are sequentially connected with the plurality of lamp beads in series. The utility model discloses having optimized the design, having optimized circuit structure, having reduced lamp strip type, having reduced stock, practiced thrift the cost, not needing traditional dimmer, only needing traditional switch to realize that the switch adjusts luminance, convenience simple to use, energy-concerving and environment-protective.

Description

Constant-current dimmable LED lamp strip

Technical Field

The utility model relates to a technical field of lamps and lanterns, more specifically relates to a constant current LED lamp strip of can adjusting luminance.

Background

The lamp strip is another name of the lamp strip and is also named due to the shape of the lamp strip. The Chinese character is obtained by adding relevant materials to the Chinese character. Commonly referred to as a great wall light bar, an LED soft light bar, a light bar, an FPC light bar, etc. The FPC material used is soft, can be bent, folded and wound at will, and can move and stretch freely in a three-dimensional space to be broken; it is suitable for irregular place and narrow space place, and is also suitable for combining various patterns in advertisement and other decoration.

Light emitting diodes are referred to as LEDs for short. Is made of a compound containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), etc. When electrons and holes are recombined, visible light is radiated, so that the light-emitting diode can be manufactured. In circuits and instruments as indicator lights or to form text or numerical displays. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light. Organic light emitting diodes OLED and inorganic light emitting diodes LED are classified by their chemical properties.

At present, the conventional LED lamp strip is basically fixed in power, dimming can be realized only by a dimming system which is externally provided with a complex system, the system cost is very high, and the use is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art at least a defect, provide a constant current LED lamp strip of can adjusting luminance, it does not need traditional dimmer, only needs traditional switch to realize that the switch adjusts luminance, convenience simple to use.

The technical scheme of the utility model is that: a constant-current dimmable LED lamp bar comprises a power supply input end and a grounding end, wherein N circuits are connected between the power supply input end and the grounding end in parallel; each circuit is provided with a plurality of lamp beads, each circuit is provided with a built-in constant-current dimming IC lamp bead, and the built-in constant-current dimming IC lamp beads are sequentially connected with the plurality of lamp beads in series.

Furthermore, the number of the built-in constant-current dimming IC lamp beads arranged in each circuit is 1. In each circuit, namely in each group of LED lamp string circuits, only 1 LED with a built-in constant-current dimming IC is needed, and the function of adjusting the brightness can be realized.

Furthermore, the built-in constant-current dimming IC lamp bead is placed at the input end of a connecting power supply in the circuit, and the built-in constant-current dimming IC lamp bead is sequentially connected with the plurality of lamp beads in series. The built-in constant-current dimming IC lamp beads are placed at the first position of each group of circuits.

Furthermore, a constant current switch is arranged inside the built-in constant current dimming IC lamp bead, and the shortest response time of the switch is 200 mS. And the built-in constant-current dimming IC lamp bead is provided with 6 sections of working modes.

The utility model discloses in, design a linear constant current switch LED lamp strip of can adjusting luminance, this LED lamp strip has the parallelly connected realization of LED lamp string circuit of can adjusting luminance of N group constant current switch. Minimum time per switch response: 200 mS. When the switch is turned on within 5S after delaying 200mS after being turned off, the switch action can be detected. When the delay time exceeds 5 seconds after the switch is turned off, the built-in constant-current dimming IC lamp bead is restored to the initial state. The built-in constant-current dimming IC lamp bead is divided into 6 sections of working modes, all the lamps are initially lightened, and the constant-current output current is reduced by 20% every time the lamp is switched on and off. Only 1 LED with a built-in constant-current dimming IC is needed in each group of LED lamp strings, and the lamp strings can be connected longer, so that the LED lamp string is more convenient to use and more energy-saving.

Compared with the prior art, the beneficial effects are: the utility model discloses having optimized the design, having optimized circuit structure, having reduced lamp strip type, having reduced stock, practiced thrift the cost, not needing traditional dimmer, only needing traditional switch to realize that the switch adjusts luminance, convenience simple to use, energy-concerving and environment-protective.

Drawings

Fig. 1 is a schematic diagram of the overall circuit of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

As shown in fig. 1, a constant-current dimmable LED light bar includes a power input terminal and a ground terminal, where N circuits are connected in parallel between the power input terminal and the ground terminal; wherein, be equipped with a plurality of lamp pearls 1 in every circuit, be equipped with built-in constant current IC lamp pearl 2 of adjusting luminance in every circuit moreover, built-in constant current IC lamp pearl 2 of adjusting luminance is established ties with a plurality of lamp pearls 1 in proper order.

In this embodiment, the number of the built-in constant-current dimming IC lamp beads 2 provided in each circuit is 1. In each circuit, namely in each group of LED lamp string circuits, only 1 LED with a built-in constant-current dimming IC is needed, and the function of adjusting the brightness can be realized. In this embodiment, 3 circuits are connected in parallel between the power input terminal and the ground terminal, and each circuit is provided with one built-in constant-current dimming IC lamp bead 2, and three built-in constant-current dimming IC lamp beads in total.

In this embodiment, built-in constant current dimming IC lamp bead 2 is placed at the connection power input end in the circuit, and built-in constant current dimming IC lamp bead 2 connects in series a plurality of lamp beads 1 in proper order. The built-in constant-current dimming IC lamp beads are placed at the first position of each group of circuits, and the effect of adjusting brightness is achieved.

Further, a constant current switch is arranged inside the built-in constant current dimming IC lamp bead 2, and the shortest switch response time is 200 mS. The built-in constant-current dimming IC lamp bead 2 is provided with 6 sections of working modes.

In this embodiment, a linear constant current switch dimmable LED light bar is designed, and the LED light bar is implemented by connecting N groups of constant current switch dimmable LED light string circuits in parallel. Minimum time per switch response: 200 mS. When the switch is turned on within 5S after delaying 200mS after being turned off, the switch action can be detected. When the delay time exceeds 5 seconds after the switch is turned off, the built-in constant-current dimming IC lamp bead is restored to the initial state. The built-in constant-current dimming IC lamp bead is divided into 6 sections of working modes, all the lamps are initially lightened, and the constant-current output current is reduced by 20% every time the lamp is switched on and off. Only 1 LED with a built-in constant-current dimming IC is needed in each group of LED lamp strings, and the lamp strings can be connected longer, so that the LED lamp string is more convenient to use and more energy-saving.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A constant-current dimmable LED lamp bar comprises a power supply input end and a grounding end, wherein N circuits are connected between the power supply input end and the grounding end in parallel; the LED lamp is characterized in that a plurality of lamp beads (1) are arranged in each circuit, a built-in constant-current dimming IC lamp bead (2) is arranged in each circuit, and the built-in constant-current dimming IC lamp bead (2) is sequentially connected with the lamp beads (1) in series.

2. The constant-current dimmable LED light bar of claim 1, wherein: the number of the built-in constant-current dimming IC lamp beads (2) arranged in each circuit is 1.

3. The constant-current dimmable LED light bar of claim 2, wherein: the built-in constant-current dimming IC lamp beads (2) are placed at the input end of a connecting power supply in the circuit, and the built-in constant-current dimming IC lamp beads (2) are sequentially connected with the plurality of lamp beads (1) in series.

4. The constant-current dimmable LED light bar of claim 2, wherein: and a constant-current switch is arranged in the built-in constant-current dimming IC lamp bead (2), and the shortest switch response time is 200 mS.

5. The constant-current dimmable LED light bar according to any one of claims 1 to 4, wherein: the built-in constant-current dimming IC lamp bead (2) is provided with 6 sections of working modes.