CN205480835U - Flexible LED filament and LED filament lamp - Google Patents

Abstract

A flexible LED filament comprises a flexible substrate, a plurality of LED light sources and a sleeve, wherein the LED light sources and the sleeve are arranged on the flexible substrate, the sleeve is made of flexible transparent or semitransparent materials, the sleeve is sleeved on the flexible substrate and around the LED light sources, the flexible substrate has plasticity, the combination of the sleeve and the flexible substrate has the capacity of keeping the shape, and the sleeve is used for expanding the distribution angle of light rays emitted by the LED light sources on the flexible substrate. The utility model provides a LED filament lamp, includes the drive plate, still includes flexible LED filament, and this flexible LED filament includes flexible base plate, sets up a plurality of LED light sources and the sleeve pipe on this flexible base plate, and this sleeve pipe is made by flexible transparent or translucent material, and this sleeve pipe cover is established this flexible base plate and around the LED light source, this flexible base plate has plasticity for the combination of this sleeve pipe and this flexible base plate possesses the ability that keeps the shape, and this sleeve pipe is used for enlarging the distribution angle of the light that the LED light source on this flexible base plate sent, and this flexible LED filament is connected with this drive plate electricity, and the both ends of this flexible LED filament are fixed respectively on this drive plate. The utility model has the advantages of simple structure and good light emitting effect.

Description

Flexible LED Filament and LED Filament Lamp

technical field

The utility model relates to the lighting field, in particular to a flexible LED filament and an LED filament lamp.

Background technique

At present, with the continuous growth of the global population and the continuous development of the economy, the problems of energy shortage and environmental pollution are becoming more and more prominent, and the pressure on global energy conservation and environmental protection is increasing. LED has been introduced into the field of lighting applications as a revolutionary technological innovation. LED lighting products have the advantages of energy saving, environmental protection, long life and low heat generation. More and more LED filament lamps are gradually being used to replace traditional incandescent lamps and other lighting products.

At present, the LED filaments used in the existing LED filament lamps on the market are often non-flexible LED filament strips. The LED filament strips need to be fixed by the stem, and then welded into one body through the hair bubble and the stem. The processing steps and structure are complicated. In addition, because the existing LED filament lamps use non-flexible LED filament strips, which cannot be bent and arranged for use, the layout of the LED filaments is highly restricted, and it is easy to cause uneven light emitting effects of the LED filament lamps.

Utility model content

In view of this, it is necessary to provide a flexible LED filament and an LED filament lamp with a simple structure and good light emitting effect.

A flexible LED filament, including a flexible substrate, a plurality of LED light sources arranged on the flexible substrate and a sleeve, the sleeve is made of flexible transparent or translucent material, the sleeve is sleeved on the flexible substrate and the Around the LED light source, the flexible substrate has plasticity, so that the combination of the sleeve and the flexible substrate has the ability to maintain shape, and the sleeve is used to expand the distribution angle of the light emitted by the LED light source on the flexible substrate.

An LED filament lamp, including a driving board, and also includes a flexible LED filament, the flexible LED filament includes a flexible substrate, a plurality of LED light sources and a sleeve arranged on the flexible substrate, and the sleeve is made of a flexible transparent or translucent material In this way, the sleeve is set around the flexible substrate and the LED light source, the flexible substrate has plasticity, so that the combination of the sleeve and the flexible substrate has the ability to maintain shape, and the sleeve is used to expand the flexible substrate. For the distribution angle of the light emitted by the LED light source, the flexible LED filament is electrically connected to the driving board, and the two ends of the flexible LED filament are respectively fixed on the driving board.

Further, the flexible substrate is made of FPC circuit board.

Compared with the prior art, the flexible LED filament and the LED filament lamp are combined with a flexible substrate and a sleeve made of transparent or translucent flexible material, so that the flexible LED filament has the ability to maintain shape, and at the same time through the The sleeve expands the distribution angle of the light emitted by the LED light source on the flexible substrate, so that compared with the prior art, the complex processing of fixing the LED filament strip by the stem and then welding the hair bubble and the stem into one body is omitted. step, it also has the advantage of expanding the light distribution angle of the LED light source so that the light output effect is good, so the flexible LED filament has the advantages of simple structure and good light output effect.

Description of drawings

Fig. 1 is a front view of the flexible LED filament in the unfolded state of the first embodiment of the present invention.

Fig. 2 is a sectional view along line A-A in Fig. 1 .

Fig. 3 is a perspective view of the flexible LED filament shown in Fig. 1 after being bent into a U shape.

Fig. 4 is a perspective view of an LED filament lamp using the flexible LED filament shown in Fig. 1 .

Explanation of reference signs:

1 LED light source 2 Flexible substrate

3 sleeves 4 electrodes

5 Bulb housing 6 Lamp cap

7 Inner sleeve 8 First electrode wire

9 Second electrode wire 10 Driver board

11 Lamp head eye piece

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

Please refer to FIG. 1 to FIG. 2 , the flexible LED filament 100 includes a flexible substrate 2 , a plurality of LED light sources 1 and a sleeve 3 disposed on the flexible substrate 2 . The sleeve 3 is made of flexible transparent or translucent material, the sleeve 3 is set around the flexible substrate 2 and the LED light source 1, the flexible substrate 2 has plasticity, so that the sleeve 3 and the flexible substrate 2 The combination of the sleeve 3 has the ability to maintain the shape, and the sleeve 3 is used to expand the distribution angle of the light emitted by the LED light source 1 on the flexible substrate 2 . The two ends of the flexible LED filament 100 can also be provided with electrodes 4 respectively.

Please refer to FIG. 1 to FIG. 2 , the cross section of the sleeve 3 is a circular structure, it can be understood that the cross section of the sleeve 3 may also be an oval structure in some embodiments. Two opposite sides of the flexible substrate 2 abut against inner sidewalls of the casing 3 . Phosphor powder (not shown) is provided on the sleeve 3 corresponding to the light emitted by the LED light source 1 , and the phosphor powder is coated on the inner wall of the sleeve 3 . It can be understood that, in some embodiments, the fluorescent powder can also be mixed in the plastic material for making the sleeve 3, and then extruded to form the sleeve 3; After being irradiated, it will be excited to produce another wavelength of light. If it is in general lighting occasions, the light generated by the fluorescent powder will mix with the light generated by the LED light source to form white light. In decorative lighting situations, the two can also be mixed to form colored light.

Please refer to FIG. 1 , the LED light sources 1 are arranged at intervals along the extending direction of the flexible substrate 2 , and the LED light sources 1 are arranged in parallel or in series.

To sum up, the flexible LED filament 100 is set in combination with the flexible substrate 2 and the sleeve 3 made of transparent or translucent flexible material, so that the flexible LED filament 100 has the ability to maintain the shape, and at the same time expands the flexible LED filament 100. The distribution angle of the light emitted by the LED light source 1 on the flexible substrate 2 . In this way, compared with the prior art, the complex processing steps of fixing the LED filament strip by the stem and welding the stem and the stem are omitted, and it also has the benefit of expanding the light distribution angle of the LED light source 1 so that the light output effect is good. , so that the flexible LED filament 100 has the advantages of simple structure and good light emitting effect.

The following is the first embodiment of the LED filament lamp made in combination with the flexible LED filament of the present invention:

Referring to FIG. 4 , an LED filament lamp includes a driver board 10 , a bulb case 5 , and the flexible LED filament described in the present invention. The flexible LED filament is electrically connected to the driving board 10 , and the two ends of the flexible LED filament are respectively fixed on the driving board 10 . The bulb shell 5 is covered around the flexible LED filament.

Please refer to Fig. 3 to Fig. 4, the two ends of the flexible LED filament are respectively provided with electrodes 4, and the electrodes 4 are made of rigid materials, and the two ends of the flexible LED filament are respectively fixed on the driving board 10 through the electrodes 4. superior. It can be understood that only when the electrode 4 is made of a rigid material can it firmly support the flexible LED filament, so that the shape of the flexible LED filament can be firmly maintained. The combination of the sleeve 3 and the flexible substrate 2 is bent to form a spiral. It can be understood that in other embodiments, the combination of the sleeve 3 and the flexible substrate 2 can also be bent to form a U-shaped three-dimensional line structure. The bulb shell 5 is covered around the flexible LED filament, and the bulb shell 5 is made of transparent or translucent material.

Referring to FIG. 4 , the LED filament lamp further includes a lamp cap 6 and an inner sleeve 7 disposed inside the lamp cap. The inner sleeve 7 is made of insulating material, and the driving board 10 is accommodated in the inner sleeve 7 . The inner sleeve 7 is used to isolate and insulate the driving board 10 from the lamp cap 6 .

Please refer to Fig. 4, the LED filament lamp also includes a lamp cap eye piece 11 arranged at the bottom of the lamp cap 6, the lamp cap eye piece 11 is made of conductive material, and the lamp cap eye piece is used for electrical connection with an external power supply (not shown in the figure) . The lamp cap 6 is a screw cap, and the driving board 10 is provided with a first electrode wire 8 and a second electrode wire 9 . One end of the first electrode wire 8 is electrically connected to the driving board 10, the other end of the first electrode wire 8 is clamped between the inner bushing 7 and the inner wall of the lamp cap 6, and the second electrode wire 9 One end of the second electrode wire 9 is electrically connected to the driving board 10 , and the other end of the second electrode wire 9 is electrically connected to the lamp eye piece 11 .

Through the arrangement of the inner bushing 7 and the first electrode wire 8, the electrical connection between the first electrode wire 8 and the inner wall of the lamp cap 6 can be realized during the assembly process, eliminating the need to weld the first electrode wire 8 on the lamp cap. 6 Welding steps on the inner side wall. It has the advantage of being easy to assemble.

The above description is only a preferred embodiment of the utility model, and is not intended to limit the utility model. All modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included in this utility model. within the scope of utility model protection.

Claims (12)

1. A flexible LED filament, comprising a flexible substrate, a plurality of LED light sources and sleeves arranged on the flexible substrate, characterized in that the sleeve is made of a flexible transparent or translucent material, and the sleeve is sleeved on Around the flexible substrate and the LED light source, the flexible substrate has plasticity, so that the combination of the sleeve and the flexible substrate has the ability to maintain shape, and the sleeve is used to expand the distribution angle of the light emitted by the LED light source on the flexible substrate . 2. The flexible LED filament according to claim 1, wherein the flexible substrate is made of an FPC circuit board. 3. The flexible LED filament according to claim 1, characterized in that: the sleeve has a circular or oval cross-section, and the two opposite sides of the flexible substrate abut against the inner wall of the sleeve superior. 4. The flexible LED filament according to claim 3, characterized in that: most of the LED light sources on the flexible substrate are spaced apart from the inner wall of the sleeve, and the sleeve is provided with a light-transmitting diffusing material. 5. The flexible LED filament according to claim 1, characterized in that: the sleeve is provided with a phosphor corresponding to the light emitted by the LED light source, and the phosphor will be excited after being irradiated by the light emitted by the LED light source Light of another wavelength is produced. 6. The flexible LED filament according to claim 1, wherein the LED light sources are arranged at intervals along the extending direction of the flexible substrate, and the LED light sources are arranged in parallel or in series. 7. An LED filament lamp, comprising a driving board, characterized in that: it also includes a flexible LED filament selected from any one of claims 1 to 6, the flexible LED filament is electrically connected to the driving board, and the flexible LED The two ends of the filament are respectively fixed on the driving board. 8. The LED filament lamp according to claim 7, characterized in that: the two ends of the flexible LED filament are respectively provided with electrodes, the electrodes are made of rigid materials, and the two ends of the flexible LED filament respectively pass through the electrodes fixed on the driver board. 9. The LED filament lamp according to claim 7, wherein the combination of the sleeve and the flexible substrate is bent to form a spiral or U-shaped three-dimensional line structure. 10 . The LED filament lamp according to claim 7 , further comprising a bulb shell, the bulb shell is arranged around the flexible LED filament, and the bulb shell is made of transparent or translucent material. 11 . 11. The LED filament lamp according to claim 7, characterized in that: it further comprises a lamp base and an inner sleeve arranged in the lamp base, the inner sleeve is made of insulating material, and the driving board is accommodated in the inner sleeve Inside. 12. The LED filament lamp according to claim 11, characterized in that: it also includes a lamp cap eye piece arranged at the bottom of the lamp cap, the lamp cap eye piece is made of conductive material, the lamp cap is a screw cap, and the driving board A first electrode wire and a second electrode wire are provided, one end of the first electrode wire is electrically connected to the driving board, and the other end of the first electrode wire is clamped between the inner bushing and the inner wall of the lamp cap , one end of the second electrode wire is electrically connected to the driving board, and the other end of the second electrode wire is electrically connected to the eye piece of the lamp holder.