CN203784711U

CN203784711U - Lamp with LED filament packaged by bent COB

Info

Publication number: CN203784711U
Application number: CN201420191725.9U
Authority: CN
Inventors: 史杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-21
Filing date: 2014-04-21
Publication date: 2014-08-20
Anticipated expiration: 2024-04-21

Abstract

The utility model discloses a lamp with an LED filament packaged by a bent COB. The lamp comprises a light transmitting shade, a light source assembly, a lamp body, a lamp base, a driver and a lamp cap, wherein the light source assembly is fixed to a platform at the top of the lamp body and comprises the LED filament, a substrate and a heat sink, the LED filament packaged by the COB is adopted for the light source assembly and packaged on the substrate, a first electrode is arranged on the heat sink, the lower end of the substrate is communicated through a wire and provided with a second electrode, and the substrate is made of a flexible material bent one or more times. Because the LED filament packaged by the COB and the bent substrate are adopted, the overall light-emitting angle of the lamp is large; the first electrode and the second electrode are located on the surface of the heat sink and at the lower end of the substrate respectively, so that the wiring width of the LED filament is reduced; light is emitted by an area light source and is soft and free of the punctate effect, the heat sink can conduct heat rapidly, and the lamp is simple in installation structure and attractive in overall appearance.

Description

Adopt the bulb of bending COB packaged LED filament

Technical field

The utility model relates to a kind of bulb that adopts bending COB packaged LED filament.

Background technology

COB encapsulation is chip on board, exactly bare chip is sticked on interconnect substrates by conduction or non-conductive adhesive, then carries out Bonding and realizes its electrical connection.If bare chip is directly exposed in air, vulnerable to pollution or artificial damage, impact or destruction chip functions, so be just encapsulated chip and bonding wire with glue.Also claim that this packing forms is Soft Roll envelope.

Current LED filament is straight filament, and owing to adopting COB encapsulation technology, light source heating is comparatively concentrated, and the heat radiation difficulty of straight filament can not bending make light emission direction more fixing simultaneously, and mounting process complexity is produced difficulty.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of bulb that adopts bending COB packaged LED filament is provided, and employing can bending substrate, be surface source luminescence, high conformity, and lighting angle large time with heat sink, radiating effect is good, and mounting process is simple.

Technical solution of the present utility model is:

A bulb that adopts bending COB packaged LED filament, comprises diffuser, light source assembly, lamp body, lamp socket, driving and lamp holder; Driving is arranged in the cavity between lamp body and lamp socket, and diffuser is fixed on lamp body, and light source assembly is located in diffuser, and light source assembly is fixed on lamp body top platform; Described light source assembly comprises LED filament, substrate and heat sink; Light source assembly adopts the LED filament of COB encapsulation; LED filament is encapsulated on substrate; The heat sink electrode one that is provided with, the wire conducting of substrate lower end, substrate lower end is provided with electrode two, and described substrate adopts flexible material to form through one or many bending.

Preferably, on heat sink, have the installing hole that is used for fixing installation.

Preferably, in described substrate, be provided with gold thread, gold thread connects respectively the electrode one that prints on heat sink surface insulating materials and the electrode two of substrate lower end.

Preferably, described LED filament is strip with acute angle or right-angle bending, LED filament and be heat sinkly acute angle or right angle.

Preferably, described LED filament is circular-arc.

Preferably, described diffuser adopts the transparent materials such as glass, resin to make.

Preferably, described bulb is candle lamp, bulb lamp.

The beneficial effects of the utility model are: adopt bending substrate, an independent LED filament is strip or other shape, and bending is at a certain angle tilted to a LED filament part luminous, and a part is tilted to lower luminous, and Integral luminous angle is large.Light source assembly is with heat sink, and the heat that light source can be produced is derived fast, on the while is heat sink, has installing hole, has simplified mounting process.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the decomposition texture schematic diagram of the utility model embodiment;

Fig. 3 is the structural representation of light source assembly in the utility model embodiment;

Fig. 4 is the cutaway view of light source assembly in the utility model embodiment;

Fig. 5 is the structural representation of the substrate of light source assembly in the utility model embodiment;

Fig. 6 is the structural representation of another kind of embodiment of the present utility model.

In figure: 1-diffuser, 2-light source assembly, 3-lamp body, 4-lamp socket, 5-drives, 6-lamp holder;

21-is heat sink, 22-substrate, 23-LED filament, 24-electrode two, 25-electrode one, 26-gold thread, 27-installing hole.

Detailed description of the invention

Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Embodiment

As depicted in figs. 1 and 2, a kind of bulb that adopts bending COB packaged LED filament, comprises diffuser 1, light source assembly 2, lamp body 3, lamp socket 4, driving 5 and lamp body 6; Light source assembly 2 adopts the LED filament 23 of COB encapsulation; Light source assembly 2 is fixed on lamp body 3 top platforms; Diffuser 1 is fixed on lamp body 3 outer rings, middle part; Drive in 5 cavitys that are arranged between lamp body 3 and lamp socket 4.

As shown in Fig. 3, Fig. 4 and Fig. 5, filament is strip, with acute angle bending, makes LED filament 23 parts for inner encapsulation towards tilting, and a part, towards having a down dip, increases overall lighting angle.Light source assembly 2 is transmitted on lamp body 3 with heat sink 21 heats that are used for that LED filament 23 is produced, and has installing hole 27 on heat sink 21 and is used for installing fixing; Electrode 1, electrode 2 24 lay respectively at heat sink 21 surfaces and substrate 22 lower ends, and electrode 1, electrode 2 24 use gold threads 26 and driving 5 are connected.In described substrate 22, be provided with gold thread 26, gold thread 26 connects respectively the electrode 1 that prints on heat sink 21 surface insulation materials and the electrode 2 24 of substrate 22 lower ends.

As shown in Figure 6, on Fig. 1 basis, diffuser 1 can be changed into ball bubble shape, change the size of lamp body 3 and lamp socket 4 simultaneously, make monnolithic case size meet the requirement of bulb lamp.For meeting the luminous intensity distribution needs of bulb lamp, can be on the filament basis shown in Fig. 3, every filament is bent into circular-arc, the sphere of realizing the all-round light of wide-angle is luminous.

Adopt the bulb of bending COB packaged LED filament, comprise diffuser 1, light source assembly 2, lamp body 3, lamp socket 4, driving 5 and lamp body 6; Light source assembly 2 adopts the LED filament 23 of COB encapsulation; Light source assembly 2 is fixed on lamp body 3 top platforms; Diffuser 1 is fixed on lamp body 3 outer rings, middle part; Drive in 5 cavitys that are arranged between lamp body 3 and lamp socket 4.Owing to adopting the LED filament 23 of COB encapsulation, adopt bending substrate 22, every filament is strip or other shape, and bending at a certain angle makes bulb Integral luminous angle large; Electrode lays respectively at heat sink 21 surface and substrate 22 lower ends, has reduced the trace width of COB light source; Simultaneously surface source luminescence, light is soft, and without brightsome spots effect, possessing heat sink 21 can quick conductive, and mounting structure is simple, moulded attractive in appearance.

Relevant particular procedure, mechanism, manufacture, material, means, method and step described in above specific embodiment and relevant drawings, be interpreted as illustrating of the present utility model, and should not be construed restriction of the present utility model.

Claims

1. a bulb that adopts bending COB packaged LED filament, is characterized in that: comprise diffuser (1), light source assembly (2), lamp body (3), lamp socket (4), drive (5) and lamp holder (6); Drive (5) to be arranged in the cavity between lamp body (3) and lamp socket (4), it is upper that diffuser (1) is fixed on lamp body (3), and light source assembly (2) is located in diffuser (1), and light source assembly (2) is fixed on lamp body (3) top platform; Described light source assembly (2) comprises LED filament (23), substrate (22) and heat sink (21); Light source assembly (2) adopts the LED filament (23) of COB encapsulation; LED filament (23) is encapsulated on substrate (22); Heat sink (21) are provided with electrode one (25), substrate (22) lower end wire conducting, and substrate (22) lower end is provided with electrode two (24), and described substrate (22) adopts flexible material to form through one or many bending.

2. the bulb of employing bending COB packaged LED filament as claimed in claim 1, is characterized in that: on heat sink (21), have the installing hole (27) that is used for fixing installation.

3. the bulb of employing bending COB packaged LED filament as claimed in claim 1 or 2, it is characterized in that: in described substrate (22), be provided with gold thread (26), gold thread (26) connects respectively the electrode one (25) that prints on heat sink (21) surface insulation material and the electrode two (24) of substrate (22) lower end.

4. the bulb of employing bending COB packaged LED filament as claimed in claim 1 or 2, is characterized in that: described LED filament (23) is strip with acute angle or right-angle bending, and LED filament (23) is acute angle with heat sink (21) or right angle tilts.

5. the bulb of employing bending COB packaged LED filament as claimed in claim 1 or 2, is characterized in that: described LED filament (23) is circular-arc.

6. the bulb of employing bending COB packaged LED filament as claimed in claim 4, is characterized in that: described diffuser (1) adopts transparent material to make.

7. the bulb of employing bending COB packaged LED filament as claimed in claim 4, is characterized in that: described bulb is candle lamp, bulb lamp.