CN203848062U

CN203848062U - Umbrella-type LED lamp filament

Info

Publication number: CN203848062U
Application number: CN201420266815.XU
Authority: CN
Inventors: 罗锦贵
Original assignee: SICHUAN HAIJINHUI PHOTOELECTRIC Co Ltd
Current assignee: SICHUAN HAIJINHUI PHOTOELECTRIC Co Ltd
Priority date: 2014-05-23
Filing date: 2014-05-23
Publication date: 2014-09-24
Anticipated expiration: 2024-05-23

Abstract

The utility model discloses an umbrella-type LED lamp filament comprising a positive connection ring (1) and a negative connection ring (2). The positive connection ring (1) is connected with a positive terminal (3), the negative connection ring (2) is connected with a negative terminal (4), at least one substrate (5) is connected onto each of the positive connection ring (1) and the negative connection ring (2), all the substrates (5) are distributed in an umbrella type, one ends of the substrates (5) are connected on the positive connection ring (1) and the negative connection ring (2), and the other ends of the substrates (5) are jointly connected to a common connection point (8). The lamp filament is of a three-dimensional umbrella-type structure, and on one hand, heat dissipation performance of the lamp filament is improved; on the other hand, the umbrella-type LED lamp filament can emit light at multiple angles and in multiple levels, and is large in light emitting area, high in light emitting efficiency and good in illumination effect; the needed substrates and sealing compounds are few, and certain light emitting efficiency is guaranteed while cost is lowered; color rendering index of a white light source is increased effectively, and the umbrella-type LED lamp filament is applicable to sites with high requirements on light source color rendering.

Description

Umbrella shape LED filament

Technical field

The utility model relates to a kind of LED filament, particularly relates to a kind of umbrella shape LED filament.

Background technology

At present, the wire that the filament of conventional incandescent generally can be directly luminous by tungsten filament etc. forms, and this class filament ubiquity short, power consumption headlight defect of life-span, and generally can only send sodium yellow, and colour rendering is poor.Simultaneously, under the guide of the strategy of sustainable development, energy-saving and emission-reduction thought is constantly promoted, country more and more payes attention to lighting energy saving and environmental issue at present, carrying out energetically using LED bulb, along with the development of LED technology, electricity-saving lamp and incandescent lamp will be replaced by LED lamp in the near future, and LED street lamp has extraordinary application prospect in new city illumination.

But existing LED filament has following deficiency: (1) generally can only be flat luminous, light source luminescent angle generally all between 120 ~ 140 °, cannot truly realize stereo luminous; (2) colour rendering of light source is poor, and light decay phenomenon is comparatively serious, the place of especially concentrating crowd, and the familiar lacunas of light source is more obvious; (3) packing forms of traditional LED lamp adopts vertical LED (Lamp-LED), surface mount LED(SMD-LED), side-emitting LED (Side-LED), top light emitting LED(TOP-LED), cover brilliant LED(Flip Chip-LED) etc. mode, all belong to point type encapsulation, its shortcoming is that light sensation is discontinuous, cannot multi-angle, luminous at many levels.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of novel umbrella shape LED filament is provided, and light-emitting area is large, luminous efficiency is high, multi-angle, multilayer stereo are luminous, and light sensation continuity is good, improve the colour rendering index of white light source, white-light spectrum composition is abundant, more approaches natural daylight.

The purpose of this utility model is achieved through the following technical solutions: umbrella shape LED filament, and it comprises anodal connecting ring and negative pole connecting ring, and anodal connecting ring is connected with positive terminal, and negative pole connecting ring is connected with negative terminal; On anodal connecting ring and negative pole connecting ring, be all connected with at least one substrate, each substrate is umbrella shape to be arranged, one end of each substrate is connected on anodal connecting ring and negative pole connecting ring, and the other end is connected in points of common connection jointly.

The both sides of described each substrate are provided with LED illuminating module, and the surface of substrate and LED illuminating module is coated with adhesive layer.

The LED illuminating module of described each side includes blue-light LED chip and the red LED chip of multiple mutual series connection.Described adhesive layer is yellow fluorescence adhesive layer.Described substrate is transparency carrier.

The beneficial effects of the utility model are:

1) filament adopts three-dimensional beveled structure, has improved on the one hand the heat dispersion of filament; On the other hand can multi-angle, multilayer stereo is luminous, light-emitting area is large, luminous efficiency is high, good illumination effect; The substrate and the sealing that need are on the one hand few again, in ensureing certain luminous efficiency, have reduced cost;

2) effectively improved the colour rendering index of white light source, produced without obvious light decay phenomenon, white-light spectrum composition is abundant, more approaches natural daylight, is almost continuous spectrum, makes this LED filament can be applicable to the colour developing to light source and requires high place;

3) adopt transparency carrier, 360 ° of light are unobstructed, and the both sides of substrate are provided with illuminating module, realized full angle stereo luminous and irradiate.

Brief description of the drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model plan structure schematic diagram;

Fig. 3 is the utility model board structure schematic diagram;

In figure, the anodal connecting ring of 1-, 2-negative pole connecting ring, 3-positive terminal, 4-negative terminal, 5-substrate, 6-LED illuminating module, 7-adhesive layer, 8-points of common connection.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain is not limited to the following stated.

As depicted in figs. 1 and 2, umbrella shape LED filament, it comprises anodal connecting ring 1 and negative pole connecting ring 2, and anodal connecting ring 1 is connected with positive terminal 3, and negative pole connecting ring 2 is connected with negative terminal 4; On anodal connecting ring 1 and negative pole connecting ring 2, be all connected with at least one substrate 5, each substrate 5 is umbrella shape to be arranged, one end of each substrate 5 is connected on anodal connecting ring 1 and negative pole connecting ring 2, and the other end is connected in points of common connection 8 jointly.

As shown in Figure 3, the both sides of described each substrate 5 are provided with LED illuminating module 6, and the surface of substrate 5 and LED illuminating module 6 is coated with adhesive layer 7.

As further improvement of the utility model, the LED illuminating module 6 of described each side includes blue-light LED chip and the red LED chip of multiple mutual series connection.Described adhesive layer 7 is yellow fluorescence adhesive layer.

As further improvement of the utility model, described substrate 5 is transparency carrier, and 360 ° of light are unobstructed, realized full angle stereo luminous and irradiate.

In the utility model lighting process, blue-light LED chip sends blue light, yellow fluorescence adhesive layer is stimulated and sends gold-tinted, blue light and gold-tinted coordinate formation white light, compensate by red LED chip again, can effectively widen the spectral region of ruddiness, it is complementary that red light wavelength crest region and the blue-light LED chip that red LED chip excites excites the wavelength valley regions of the look ripple of yellow fluorescence adhesive layer generation to overlap, compensation effect is good, improve the colour developing coefficient of white light source, white-light spectrum composition is abundant, more approach natural daylight, it is almost continuous spectrum, can meet the develop the color user demand in the place of having relatively high expectations of light source.

The above is only preferred embodiment of the present utility model, be to be understood that the utility model is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not depart from spirit and scope of the present utility model, all should be in the protection domain of the utility model claims.

Claims

1. umbrella shape LED filament, is characterized in that: it comprises anodal connecting ring (1) and negative pole connecting ring (2), and anodal connecting ring (1) is connected with positive terminal (3), and negative pole connecting ring (2) is connected with negative terminal (4); On anodal connecting ring (1) and negative pole connecting ring (2), be all connected with at least one substrate (5), each substrate (5) is umbrella shape and arranges, one end of each substrate (5) is connected to anodal connecting ring (1) and negative pole connecting ring (2) is upper, and the other end is connected in points of common connection (8) jointly.

2. umbrella shape LED filament according to claim 1, is characterized in that: the both sides of described each substrate (5) are provided with LED illuminating module (6), and the surface of substrate (5) and LED illuminating module (6) is coated with adhesive layer (7).

3. umbrella shape LED filament according to claim 2, is characterized in that: the LED illuminating module (6) of described each side includes blue-light LED chip and the red LED chip of multiple mutual series connection.

4. umbrella shape LED filament according to claim 2, is characterized in that: described adhesive layer (7) is yellow fluorescence adhesive layer.

5. umbrella shape LED filament according to claim 1, is characterized in that: described substrate (5) is transparency carrier.