A kind of LED flexible light band
Technical field
The utility model relates to a kind of decorative light device, particularly a kind of LED flexible light band.
Background technology
LED flexible light band (the soft lamp bar of LED) has characteristics such as brightness height, long service life, economical environment-protective, it is widely used in decorative lighting market, as delineate at signboard, captions advertisement, contour of building, illumination places such as the illumination of indoor smallpox, body of a motor car interior trim.
LED flexible light band is in the market generally formed (concrete structure of this lamp band can be that 201010547251.3 Chinese invention patent application and application number are 201020610403.5 Chinese utility application with reference to the application number of the applicant application) by heart yearn, flexible banded circuit board (for example FPC FPC) and clad.
Existing lamp band 1 needs earlier the lead in the heart yearn to be connected special-purpose, external rectifier 2 earlier when installing and using, and connects civilian power supply (see figure 1) by plug 3 then.Thisly connect electric mode and make troubles for consumer's daily use, particularly the consumer presses after the actual needs cutting lamp band, and each joint all will be joined a rectifier special use, external in addition, otherwise can't use every joint lamp band.
The utility model content
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of does not need special-purpose, external rectifier just can directly connect the LED flexible light band of civilian power supply.
For achieving the above object, the utility model adopts following technical scheme:
A kind of LED flexible light band, comprise a heart yearn, at least one a flexible banded circuit board and a clad, this heart yearn inside is provided with a cavity, and, be embedded with at least two leads in the cavity wall, every circuit board is provided with the circuit that comprises at least one LED, and circuit board is arranged in the cavity, it is characterized in that: be provided with rectifier in the clad, this rectifier is connected between lead and the circuit.
The lead of this LED flexible light band directly connects civilian power line, the operating voltage that is lead is to exchange 220 volts or 110 volts etc. to use civilian alternating current voltage always, rectifier by LED flexible light band inside carries out rectification then, provides direct current to power to DC circuit, makes LED luminous lighting or decoration.
Technique scheme can also be further improved by following technical measures.
This rectifier is arranged in the cavity of heart yearn.
This rectifier is installed on the circuit board.
This rectifier is SMD rectifier bridge.
This SMD rectifier bridge comprises two alternating current pins and an anodal output pin and a negative pole output pin, above-mentioned lead has two to exchange input lead, two interchange input leads connect the alternating current pin respectively, and foregoing circuit is connected between anodal pin and the negative pole pin.
Above-mentioned heart yearn is a strip shape body predetermined length, light-permeable by the flexiplast extrusion molding, ground, conductor spacing in the heart yearn is arranged along the heart yearn length direction, clad by the flexiplast extrusion molding, with above-mentioned heart yearn isometric, light-permeable, clad is coated on outside above-mentioned heart yearn and the circuit board.
Above-mentioned each technical measures can be selected a use, use also capable of being combined.
Compared to existing technology, the present invention has following beneficial effect:
1, simple and reasonable, connect civilian power supply more easily.
2, handling ease, good decorating effect.
Description of drawings
Fig. 1 is the use schematic diagram of existing lamp band;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the A-A cutaway view of Fig. 2; Fig. 2 is the B-B cutaway view of Fig. 3;
Fig. 4 is the vertical view of Fig. 2.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Referring to Fig. 2-4, a kind of LED flexible light band 10, comprise a heart yearn 20, many banded circuit boards 60 of flexibility (only showing one part among the figure) and a clad 30, these heart yearn 20 inside are provided with a cavity 21, and, be embedded with two leads 40 in the cavity wall 22, every circuit board 60 is provided with the circuit that comprises a plurality of LED61, circuit board 60 is arranged in the cavity 21, be provided with rectifier 62 in the clad, this rectifier 62 is connected (syndeton of not shown rectifier 62 and lead, the also concrete structure of not shown circuit) between lead 40 and the circuit.Also comprise resistance 63 in the circuit.
The lead 40 of this LED flexible light band directly connects civilian power line, the operating voltage that is lead 40 is to exchange 220 volts or 110 volts etc. to use civilian alternating current voltage always, rectifier 62 by LED flexible light band inside carries out rectification then, provide direct current to power, make LED61 luminous lighting or decoration to DC circuit.
This rectifier 62 is arranged in the cavity 21 of heart yearn 20.This rectifier 62 is installed on the circuit board.This rectifier 62 is SMD rectifier bridges, for example the MB6F chip.
This SMD rectifier bridge comprises two alternating current pins and an anodal pin and a negative pole pin, above-mentioned lead has two to exchange input lead, two exchange input lead respectively by lead-in wire (not shown) connection alternating current pin, and above-mentioned DC circuit is connected between anodal pin and the negative pole pin.In the present embodiment, above-mentioned lead-in wire is the lead-in wire of entire circuit plate 60 just, and anodal pin and negative pole pin are by other electrical equipment on the Copper Foil connecting circuit plate 60 of circuit board 60.
Above-mentioned heart yearn 20 is a strip shape bodies predetermined length, light-permeable by the flexiplast extrusion molding, lead 40 compartment of terrains in the heart yearn 20 are arranged along heart yearn 20 length directions, clad 30 by the flexiplast extrusion molding, with above-mentioned heart yearn 20 isometric, light-permeable, clad 30 is coated on outside above-mentioned heart yearn 20 and the circuit board 60.
Below only be that the specific embodiment in the utility model is illustrated, every equivalent transformation or modification of making according to the design concept in the utility model all should be thought to fall into protection domain of the present utility model.