CN202629645U

CN202629645U - Light-emitting diode (LED) lamp bulb lamp wick with integrated heat dissipation structure

Info

Publication number: CN202629645U
Application number: CN2012201670346U
Authority: CN
Inventors: 欧阳炳生
Original assignee: GUANGDONG WEIFENG OPTO TECHNOLOGY Ltd
Current assignee: GUANGDONG WEIFENG OPTO TECHNOLOGY Ltd
Priority date: 2012-04-18
Filing date: 2012-04-18
Publication date: 2012-12-26
Anticipated expiration: 2022-04-18

Abstract

The utility model relates to the light-emitting diode (LED) lighting fixture technology, and particularly relates to a light-emitting diode (LED) lamp bulb lamp wick with an integrated heat dissipation structure. The LED lamp bulb lamp wick comprises printed circuit board (PCB) substrates and a heat dissipation metal outer shell, wherein the number of the PCB substrates is more than three, the obverse side and the reverse side of the top of each PCB substrate are both provided with LED chips in a sealed mode, the top of the heat dissipation metal outer shell protrudes and forms a peripheral inserting-connecting part which forms an inserting-connecting groove, and the bottom of each PCB substrate is inserted into the inserting-connecting groove in a connecting mode. A heat dissipation metal cover is arranged inside a space formed by the peripheral inserting-connecting part in an enclosing mode, and protrudes and forms a cooling fin which is also inserted into the inserting-connecting groove in a connecting mode. Therefore, the bottom of each PCB substrate is arranged between the peripheral inserting-connecting part and the cooling fin in a closely clamping mode, so that the PCB substrates, the heat dissipation metal cover and the heat dissipation metal outer shell form an integrated heat dissipation structure so as to speed up heat dissipation and improve heat dissipation effect. Moreover, production and assembling of the LED lamp bulb lamp wick with the integrated heat dissipation structure are relatively simple and convenient.

Description

The LED bulb wick of integrated radiating structure

Technical field

The utility model relates to LED light fixture technology, relates in particular to a kind of LED bulb wick of integrated radiating structure.

Background technology

As everyone knows; LED (Light Emitting Diode, light emitting diode) has characteristics such as long service life, energy consumption is low, energy savings is remarkable, therefore; LED has been widely used in the daily life as light source, like LED lightings such as cup lamp, shot-light, auto lamp, LED bulbs.

The LED bulb mainly includes lamp holder, lampshade, is positioned at the power supply of lamp holder in the prior art, is connected with the heat radiating metal shell between lamp holder and the lampshade, and the top of heat radiating metal shell is positioned at lampshade; And the top of heat radiating metal shell is fixed with collector substrate, and collector substrate fixedly is plugged with the LED Column being luminous, wherein; The LED Column being luminous comprises two PCB substrates, and the front of two PCB substrates all is packaged with led chip, and led chip is electrically connected with the PCB substrate; The PCB substrate is electrically connected with power supply; The back side of two PCB substrates is close to fixing mutually,, be gripped with heat dissipation metal plate between the back side of two PCB substrates.In use, the light that led chip sends sees through lampshade and shines out, and the heat that produces when led chip is luminous passes to collector substrate through PCB substrate and heat dissipation metal plate, is distributed through the heat radiating metal shell by collector substrate again.Though this LED bulb has certain radiating effect,, the wick that it is formed through many LED Column being luminous; The not direct and heat radiating metal housing contacts of its PCB substrate is so radiating rate is still slower; And, when needs are provided with many LED Column being luminous, the heat dissipation metal plate of fixing every the LED Column being luminous of necessary independent installation; Therefore, production and assembly comparatively bother.

The utility model content

The purpose of the utility model is to provide to the deficiency of prior art that a kind of radiating rate is very fast, the LED bulb wick of the simple integrated radiating structure of production and assembly.

The purpose of the utility model realizes through following technical measures: a kind of LED bulb wick of integrated radiating structure; It includes PCB substrate, heat radiating metal shell; Said PCB substrate is more than three; The front and back at PCB substrate top all is packaged with led chip, and led chip is electrically connected with the PCB substrate, and the PCB substrate is electrically connected with the power supply of LED bulb; The top bump of heat radiating metal shell forms the peripheral Plug Division with PCB substrate coupling, and peripheral Plug Division forms inserting groove, and the bottom of PCB substrate is plugged in inserting groove; Be provided with the heat radiating metal lid in the space that peripheral Plug Division surrounds; The heat radiating metal lid is fixed in the top of heat radiating metal shell; And the protruding fin that matees with inserting groove that forms of heat radiating metal lid; Fin also is plugged in inserting groove, and the bottom of PCB substrate closely is folded between peripheral Plug Division and the fin.

Preferably, be provided with collector substrate in the said heat radiating metal shell, collector substrate is positioned at the below of heat radiating metal lid, and the PCB substrate is electrically connected with the power supply of LED bulb through collector substrate.

Preferably, said collector substrate is the glass-epoxy copper-clad plate.

Preferably, the bottom of said PCB substrate is welded in collector substrate.

Preferably, the centre of said heat radiating metal lid offers the screw that is used for fixing, and the heat radiating metal lid is fixed in the top of heat radiating metal shell through vertical screw.

Preferably, said PCB substrate is outward-dipping.

Preferably, said PCB substrate is that three, fin are that three, peripheral Plug Division are three, and three peripheral Plug Divisions form the legs of the tripod structures of standing upside down.

Particularly, said led chip is several, and several led chips are and vertically are arranged in the PCB substrate.

Particularly, said led chip is several, and several led chips also can be transversely arranged in the PCB substrate.

The utility model beneficial effect is: the utility model includes PCB substrate, heat radiating metal shell; The PCB substrate is more than three; The front and back at PCB substrate top all is packaged with led chip, and led chip is electrically connected with the PCB substrate, and the PCB substrate is electrically connected with the power supply of LED bulb; The top bump of heat radiating metal shell forms the peripheral Plug Division with PCB substrate coupling, and peripheral Plug Division forms inserting groove, and the bottom of PCB substrate is plugged in inserting groove; Be provided with the heat radiating metal lid in the space that peripheral Plug Division surrounds; The heat radiating metal lid is fixed in the top of heat radiating metal shell, and the protruding fin that matees with inserting groove that forms of heat radiating metal lid, and fin also is plugged in inserting groove; The bottom of PCB substrate closely is folded between peripheral Plug Division and the fin; Thereby make PCB substrate, heat radiating metal lid be integrally formed the formula radiator structure with the heat radiating metal shell, wherein, the direct and heat radiating metal housing contacts of PCB substrate; To accelerate radiating rate, improve radiating effect.And the fin that takes shape in the heat radiating metal lid can disposablely install, and need not the fin of every PCB substrate of independent installation, so the production and assembly of the utility model are comparatively simple and convenient.

Description of drawings

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

Fig. 2 is the decomposing schematic representation of the utility model.

Fig. 3 is the structural representation that the utility model conceals the heat radiating metal shell.

Fig. 4 is the structural representation of the heat radiating metal lid of the utility model.

Fig. 5 is the structural representation of the heat radiating metal shell of the utility model.

In Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, include:

1---PCB substrate 2---led chip

The peripheral Plug Division of 3---heat radiating metal shells 31---

311---inserting groove 4---heat radiating metal lid

41---fin 42---screw

5---collector substrate 6---screw.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

The LED bulb wick of a kind of integrated radiating structure that the utility model provides; Shown in Fig. 1～5; It includes PCB substrate 1, heat radiating metal shell 3, and wherein, PCB substrate 1 is more than three; The front and back at PCB substrate 1 top all is packaged with led chip 2, forms light-emitting section (or Column being luminous); Led chip 2 is electrically connected with PCB substrate 1, and PCB substrate 1 is electrically connected with the power supply of LED bulb, makes the power supply of LED bulb convert alternating current into direct current, and be that led chip 2 is supplied power through PCB substrate 1; The top bump of heat radiating metal shell 3 forms the peripheral Plug Division 31 with PCB substrate 1 coupling, and peripheral Plug Division 31 forms inserting groove 311, and the bottom of PCB substrate 1 is plugged in inserting groove 311; Be provided with heat radiating metal lid 4 in the space that peripheral Plug Division 31 surrounds; Heat radiating metal lid 4 is fixed in the top of heat radiating metal shell 3; And heat radiating metal covers 4 convexities and forms the fin 41 that matees with inserting groove 311; Fin 41 also is plugged in inserting groove 311, and the bottom of PCB substrate 1 closely is folded between peripheral Plug Division 31 and the fin 41, like this; The heat that produces when making led chip 2 luminous is directly passed to the peripheral Plug Division 31 of heat radiating metal shell 3 and the fin 41 of heat radiating metal lid 4 through PCB substrate 1, distributed apace by heat radiating metal shell 3 and heat radiating metal lid 4 again.

Wherein, Because being close to each other between PCB substrate 1, peripheral Plug Division 31 and the fin 41; Make led chip 2, PCB substrate 1, heat radiating metal lid 4 be integrally formed the formula radiator structure with heat radiating metal shell 3, the heat that led chip 2 produces when luminous with beeline heat conduction to heat radiating metal lid 4 and heat radiating metal shell 3, has lowered thermal resistance through aluminium base; Thereby accelerated radiating rate, improved radiating effect.

And the fin 41 that takes shape in heat radiating metal lid 4 can disposablely install, and need not the fin 41 of every PCB substrate 1 of independent installation, so the production and assembly of the utility model are comparatively simple and convenient.

Further, the light-emitting section that the utility model monolithic PCB substrate 1 and led chip 2 are formed than the two PCB substrates of traditional LED bulb and the Column being luminous of led chip composition, is produced comparatively simply, and production cost is lower.

The preferably is provided with collector substrate 5 in the heat radiating metal shell 3, collector substrate 5 is positioned at the below of heat radiating metal lid 4, and PCB substrate 1 is electrically connected with the power supply of LED bulb through collector substrate 5, and promptly the power supply of LED bulb is 1 power supply of PCB substrate through collector substrate 5.

The preferably; Collector substrate 5 is the glass-epoxy copper-clad plate, and the bottom of PCB substrate 1 is welded in collector substrate 5, therefore; Compare as the LED bulb wick of substrate with traditional use aluminium base; The utility model is in order to collector substrate 5 heat conduction, and collector substrate 5 is in order to made, can reduce production costs like this and faster production, enhance productivity.

The preferably, the centre of heat radiating metal lid 4 offers the screw 42 that is used for fixing, and heat radiating metal lid 4 is fixed in the top of heat radiating metal shell 3 through vertical screw 6; Particularly; Said PCB substrate 1 is outward-dipping; Thereby the fin 41 that makes fixing downward vertically heat radiating metal lid 4 can compress the bottom of PCB substrate 1; And PCB substrate 1 can be close in the inserting groove 311 of peripheral Plug Division 31, reach conveniently with quick transmission and the stable of production and assembly that helps heat more.

The preferably; PCB substrate 1 is that three, fin 41 are that three, peripheral Plug Division 31 are three; Three peripheral Plug Divisions 31 form the legs of the tripod structure of standing upside down; This structure also helps making full use of of light except having the stable of above-mentioned quick transmission that helps heat and production and assembly and making things convenient for the effect.

Certainly; Needs according to reality; Said PCB substrate 1 also can be set to other numbers such as 4,5,3 of being not limited only to select for use for present embodiment, and also led chip 2 is the high-power LED chip 2 of 1～10W; The light-emitting section that PCB substrate 1 and led chip 2 are formed has enough brightness when luminous; Be similar to " fireworks " effect of traditional tengsten lamp thereby light-emitting section can be formed, thereby the illumination effect that promptly forms tengsten lamp makes the LED bulb of using the utility model can substitute traditional bulb, the purpose that reaches illumination or decorate.

In the present embodiment, led chip 2 is several, and several led chips 2 are and vertically are arranged in PCB substrate 1.Certainly, the quantity of said led chip 2 and arrangement mode are not limited only to the mode that present embodiment is selected for use, and led chip 2 also can be for other quantity and mode such as transversely arranged, as long as it has better illumination and decorative effect.

Should be noted that at last; Above embodiment is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection domain, although with reference to preferred embodiment the utility model has been done explanation at length, those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement the technical scheme of the utility model, and not break away from the essence and the scope of the utility model technical scheme.

Claims

1. the LED bulb wick of an integrated radiating structure; It includes PCB substrate, heat radiating metal shell; It is characterized in that: said PCB substrate is more than three; The front and back at PCB substrate top all is packaged with led chip, and led chip is electrically connected with the PCB substrate, and the PCB substrate is electrically connected with the power supply of LED bulb; The top bump of heat radiating metal shell forms the peripheral Plug Division with PCB substrate coupling, and peripheral Plug Division forms inserting groove, and the bottom of PCB substrate is plugged in inserting groove; Be provided with the heat radiating metal lid in the space that peripheral Plug Division surrounds; The heat radiating metal lid is fixed in the top of heat radiating metal shell; And the protruding fin that matees with inserting groove that forms of heat radiating metal lid; Fin also is plugged in inserting groove, and the bottom of PCB substrate closely is folded between peripheral Plug Division and the fin.

2. the LED bulb wick of integrated radiating structure according to claim 1; It is characterized in that: be provided with collector substrate in the said heat radiating metal shell; Collector substrate is positioned at the below of heat radiating metal lid, and the PCB substrate is electrically connected with the power supply of LED bulb through collector substrate.

3. the LED bulb wick of integrated radiating structure according to claim 2 is characterized in that: said collector substrate is the glass-epoxy copper-clad plate.

4. the LED bulb wick of integrated radiating structure according to claim 3, it is characterized in that: the bottom of said PCB substrate is welded in collector substrate.

5. the LED bulb wick of integrated radiating structure according to claim 1 is characterized in that: the centre of said heat radiating metal lid offers the screw that is used for fixing, and the heat radiating metal lid is fixed in the top of heat radiating metal shell through vertical screw.

6. the LED bulb wick of integrated radiating structure according to claim 1 is characterized in that: said PCB substrate is outward-dipping.

7. the LED bulb wick of integrated radiating structure according to claim 6 is characterized in that: said PCB substrate is that three, fin are that three, peripheral Plug Division are three, and three peripheral Plug Divisions form the legs of the tripod structures of standing upside down.

8. according to the LED bulb wick of any described integrated radiating structure of claim 1 to 7, it is characterized in that: said led chip is several, and several led chips are and vertically are arranged in the PCB substrate.

9. according to the LED bulb wick of any described integrated radiating structure of claim 1 to 7, it is characterized in that: said led chip is several, and several led chips are transversely arranged in the PCB substrate.