TWI792740B - Ac driven lighting strip and application thereof - Google Patents

Abstract

The present invention reveals an AC driven lighting strip, comprising a flexible body and plenty of light-emitting elements mounded on the body. Every light-emitting element are set in a parallel connection to each other, wherein, each light-emitting element has two light-emitting diode that are settled in an inverse parallel connection, and each light-emitting diode can be drive by a voltage which below than 5 volts.

Description

AC light bar and its application

A light bar, in particular an alternating current light bar that can be directly driven by alternating current and its application.

Light emitting diodes (Light Emitting Diode, LED) have been widely used in modern life, but due to the limitation of LED circuit structure that can only be used with direct current, low-voltage LED products can only be used in general life with The way of connecting the battery to supply current is very unfavorable to the environment in consideration of long-term use.

In order to solve the problem that the above-mentioned low-voltage LED products can be connected to AC power in general life, the present invention provides an AC light bar, which includes a flexible body and a plurality of light-emitting elements formed on the body, and each of the The light-emitting elements are arranged in parallel with each other, wherein each light-emitting element includes two anti-parallel light-emitting diodes, and the driving voltage of each light-emitting diode is lower than 5 volts.

Wherein, it includes a conductive part, the conductive part includes two conductive layers of the strip body, the two conductive layers are arranged at intervals adjacent to their opposite long sides, and a light emitting part, the light emitting part includes a plurality of the light emitting elements Each of the light-emitting elements is arranged in parallel and spaced apart on two surfaces of the conductive layer, each of the light-emitting elements contains two light-emitting diodes inside, and the two light-emitting diodes are respectively connected to two adjacent spaced apart The conductive layer is electrically connected.

Wherein, the two light-emitting diodes of each light-emitting element are arranged in an anti-parallel structure, and the directions of the circuits in each light-emitting element are consistent.

Further, the conductive part includes an insulating film, the insulating film covers the surfaces of the two adjacent conductive layers, the insulating film leaves a plurality of exposed segments on the two surfaces of the conductive layers, and each of the The light emitting elements are correspondingly arranged on each exposed segment.

Further, the two conductive layers are made of metal with good electrical conductivity.

Further, a resistor is provided on either side of each light-emitting element, and an electrode is provided on one of the corresponding two sides of the resistor, and the two electrodes of the resistor are respectively connected to the two adjacent conductive layers arranged at intervals. .

Further, a transparent protection layer is coated on the conductive part and the light emitting part.

The present invention further provides an application of an AC light bar. The AC light bar is provided with a joint, and the AC light bar forms a ring structure by using the joint.

Wherein, the joint is a male-female head structure that can be buckled with each other, or the joint is a Velcro structure that is bonded to each other, or the joint is a screw lock structure that is screwed together.

Further, the two ends of the AC light bar are each sleeved with a joint piece, and the inner diameter of the joint piece is clamped or bonded to the end of the AC light bar, wherein, the two ends correspondingly arranged on the two ends of the AC light bar A magnetic part is respectively arranged inside the joint part, and the two joint parts can reach through the magnetic part and be magnetically coupled with each other.

Two light-emitting diodes are arranged in each light-emitting element in an anti-parallel structure, so that the AC light bar can be adapted to direct current and alternating current, and each light-emitting element and two light-emitting diodes are connected in parallel The structure is arranged on the conductive part, if one of the light-emitting diodes is damaged and does not light up, it will not affect the power supply of the other two light-emitting diodes.

Please refer to Figures 1 to 3, which are preferred embodiments of the AC lamp strip of the present invention, which include a body and a plurality of parallel-connected light-emitting elements 21 formed on the body, and the body is a flexible strip body, the light emitting element 21 includes two antiparallel light emitting diodes 211 (light emitting diode, LED), the driving voltage of each light emitting diode 211 is lower than 5 volts (Volt), the light emitting diode of this embodiment The diode 211 is a short-wavelength light-emitting diode, such as blue light, purple light, etc., and its forward bias is 2.5-3.4 volts. If a long wavelength such as a red light emitting diode 211 is used, the driving voltage is about 1.7 volts. Low Voltage Anti-Parallel Light Emitting Diodes

Further, the body includes a conductive portion 10 and a light emitting portion 20, the conductive portion 10 includes two conductive layers 11 and an insulating film 12, the conductive layer 11 is a long metal sheet, the two conductive layers 11 are Its relatively long sides are adjacently arranged at intervals, and the insulating film 12 can be selectively coated on the surfaces of the two adjacent conductive layers 11 arranged at intervals, and the insulating film 12 leaves a plurality of Bare paragraph 13.

The material of the two conductive layers 11 can be selected from a metal with better electrical conductivity. The preferred embodiment of the present invention uses two long copper sheets.

As shown in Figure 2 and Figure 4, the light emitting part 20 includes a plurality of the light emitting elements 21, each of the light emitting elements 21 is arranged on each of the exposed segments 13 at intervals, and each of the light emitting elements 21 is provided with two electrodes , and the two electrodes are respectively connected to the two conductive layers 11 arranged adjacent to each other at intervals on the long side, each of the light-emitting elements 21 contains two light-emitting diodes 211 inside, and the two light-emitting diodes 211 The two electrodes are respectively electrically connected to the surface of the conductive layer 11 . Wherein, the two light-emitting diodes 211 are arranged inside each light-emitting element 21 in an anti-parallel structure, and the circuit directions of the two light-emitting diodes 211 in each light-emitting element 21 are the same, and each light-emitting element 21 is disposed on the conductive portion 10 in a parallel structure.

Preferably, each of the light-emitting elements 21 is accompanied by a resistor, one of the corresponding two sides of the resistor is respectively provided with a resistor electrode, and the two resistor electrodes of the resistor are respectively connected to the adjacent array. The two conductive layers 11 are connected, and the resistor can stably regulate the current of the AC lamp bar, preventing the occurrence of the situation that the life of each light-emitting diode 211 is affected by the excessive current.

During use, the two conductive layers 11 are respectively connected to a power supply electrode, and the two light-emitting diodes 211 in each of the light-emitting elements 21 can be illuminated after power-on. The parallel structure is arranged in each of the light-emitting elements 21, so that the AC light bar can be adapted to direct current and alternating current, and it should be reflected that each of the light-emitting elements 21 and the two light-emitting diodes 211 are connected in parallel with each other. The structure is arranged on the conductive part 10, if one of the light emitting diodes 211 is damaged and does not light up, it will not affect the power supply of the other light emitting diodes 211.

As shown in Figure 3, a transparent protective layer A, such as silicon gel, is coated on the periphery of the AC light bar, so that one of the light output paths of the light-emitting elements can be transmitted in the transparent protective layer A, and each light-emitting element can be effectively transmitted. For the light source emitted by 21, the transparent protective layer A can also protect the internal structure of the AC light bar, so that the light emitting elements 21 and the resistors in the AC light bar are not easy to fall off.

Further, the AC light bar includes a luminous coating B, and the luminous coating B corresponds to the light output path. The luminous coating B can be arranged on the surface of the conductive part adjacent to each light-emitting element 21, and the luminous coating B can also be added in the transparent protective layer A, not only can change the appearance color of the AC light bar, but also the luminous coating B has the characteristic of absorbing the light source of the light-emitting element 21. When the AC light strip is not powered, the luminous coating B can also effectively emit fluorescent light in a dark place. In this embodiment, the luminous coating B includes a phosphorescent material .

The AC light bar can be designed in different sizes, lengths, or linear and circular shapes, so that the AC light bar can be installed in various facilities or applications. As shown in FIG. 5 to FIG. 7 in a preferred application embodiment of the present invention, the two ends of the AC light bar include a coupling member 30 that can be combined with each other, so that the AC light bar can form a ring structure. The structure of the coupling part 30 is not limited. The coupling part 30 may have a male and female head structure that can be buckled with each other, or a Velcro structure that is bonded to each other, or a screw lock structure that is screwed together.

In this embodiment, the two ends of the AC light bar are sheathed with one of the joint parts 30 , and the inner diameter of the joint part 30 can be clamped or glued to the ends of the AC light bar. Wherein, a magnetic piece 31 is respectively provided inside the two connecting pieces 30 correspondingly arranged at the two ends of the alternating current light bar, and the two connecting pieces 30 can pass through the magnetic piece 31 to magnetically couple with each other, so that the alternating current light bar The two ends can be magnetically joined by the joint member 30 to form the ring structure.

10: Conductive part 11: Conductive layer 12: Insulation film 20: Luminous Department 21: Light emitting element 211: light emitting diode 30: Joining parts 31: Magnetic parts A: Transparent protective layer B: Luminous coating

Fig. 1 is a partial top view of a preferred embodiment of the present invention Fig. 2 is a partial enlarged view of a preferred embodiment of the present invention Fig. 3 is a partial sectional view of a preferred embodiment of the present invention Fig. 4 is the equivalent circuit diagram of a preferred embodiment of the present invention Fig. 5 is a cross-sectional view of the joint of the preferred embodiment of the present invention Fig. 6 is an exploded view of the joint member of the preferred embodiment of the present invention Fig. 7 is the second state diagram of the preferred embodiment of the present invention

10: Conductive part

11: Conductive layer

21: Light emitting element

Claims (8)

An AC light bar, which includes a flexible body and a plurality of light emitting elements formed on the body, at least one light output path of the light emitting element is provided with a luminous coating, and the light emitting elements are connected in parallel arrangement, wherein each of the light-emitting elements comprises two anti-parallel light-emitting diodes. The AC lamp bar as described in claim 1, comprising: a conductive part, the conductive part includes two conductive layers of the strip body, and the two conductive layers are arranged at intervals adjacent to their opposite long sides, and; a light emitting The light-emitting part includes a plurality of the light-emitting elements, and each of the light-emitting elements is arranged in parallel and at intervals on the two surfaces of the conductive layer. Each of the light-emitting elements contains two light-emitting diodes inside, and two of the light-emitting elements The diodes are respectively electrically connected to the two conductive layers arranged at intervals adjacent to each other, wherein: the two light emitting diodes of each light emitting element are arranged in an antiparallel structure. According to the AC light bar described in claim 1, the luminous coating is provided on the surface of the conductive part. According to the AC lamp strip described in claim 1, a transparent protective layer is coated on the conductive part and the light emitting part, and the luminous coating is provided on the transparent protective layer. According to the AC light bar described in claim 3 or 4, the conductive part includes: an insulating film, the insulating film covers the surfaces of the two conductive layers arranged at intervals adjacent to each other, and the insulating film covers the surfaces of the two conductive layers A plurality of exposed sections are left on the surface, and each of the light-emitting elements is correspondingly arranged on each of the exposed sections, wherein the material of the two conductive layers is a metal with good electrical conductivity. As for the AC lamp strip described in claim 5, a resistor is provided on either side of each light-emitting element, and an electrode is provided on one of the corresponding two sides of the resistor, and the two electrodes of the resistor are respectively spaced from the adjacent The two conductive layers provided are connected. An application of an AC light bar, including the AC light bar described in any one of claims 1 to 6, the AC light bar is provided with a joint, and the joint is a male-female head structure that can be buckled with each other, or The combination part is a velcro structure bonded to each other, or the combination part is a screw lock structure screwed together; the alternating current light bar forms a ring structure by using the connection part. According to the application of the AC light bar described in claim item 7, the two ends of the AC light bar are respectively sleeved with a joint piece, and the inner diameter of the joint piece is clamped or glued to the end of the AC light bar, wherein, corresponding to the The two connecting parts at the two ends of the alternating current light bar are respectively provided with a magnetic part inside, and the two connecting parts can reach through the magnetic part and be magnetically coupled with each other.

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