CN201416791Y

CN201416791Y - Light-emitting diode lamp bulb

Info

Publication number: CN201416791Y
Application number: CN2009201589554U
Authority: CN
Inventors: 吕国钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-22
Filing date: 2009-06-22
Publication date: 2010-03-03
Anticipated expiration: 2019-06-22

Abstract

A light emitting diode lamp bulb includes a lamp body, a heat radiation element, a lamp panel, a control circuit board and an electrical base. The lamp body is provided with an accepting space havingan opening; the heat radiation element is provided with a heat conduction pipe and a heat conduction block, the heat conduction pipe is arranged in the accepting space, and the heat conduction block is sealed in the opening of the accepting space; the lamp panel is coated outside the heat conduction pipe; and the electrical base is arranged on the other end of the heat conduction block and is provided with an accepting space for placing the control circuit board. It is possible to conduct heat generated by the lamp panel by the heat radiation element, so that service life is prolonged and lightness is improved.

Description

Light emitting diode bulb

Technical field

This case is a kind of application technology of light emitting diode, refers to especially lamp plate is made the bulb pattern, to reach the bulb structure of illumination and heat radiation purpose.

Background technology

General osram lamp is simple owing to holder structure, and not only installation/replacing is all quite convenient, and can apply to various places, as: the lighting use of corridor, lavatory or factory etc.And general traditional bulb is owing to there is long shortcoming of power consumption, life-span, and also can send high heat after long-time the use, and is easy to generate the danger when changing; Therefore, conventional bulb is had the light emitting diode of characteristics such as power saving, life-span be long gradually (Light-emitting diode LED) is replaced.

See also Fig. 1, structural representation for general LED bulb 1, in a printing opacity lamp housing 11, be equipped with a lamp plate 12, this lamp plate 12 is provided with a plurality of high-power LED 121, and this lamp plate 12 is arranged on the power connection seat 13 of a bulb type, 13 of this lamp plate 12 and power connection seats are connected with a control circuit board 131 usually has stable operating voltage and electric current so that lamp plate 12 to be provided.

Yet illumination is used and the LED 121 that indicates usefulness, its luminous power difference, and for general high-capacity LED 121, its input power only has 15～20% to convert luminous energy to, and remaining 80～85% convert heat energy to; If heat energy do not disperse immediately to the external world, can cause the luminescent grain interface temperature of LED 121 too high, not only influence the wavelength when luminous, and can cause the luminous power decay, and reduce problem such as service life.Therefore, how effectively to disperse the heat that is produced when LED 121 uses, be the direction of correlation technique personage research always; But, because the lamp housing 11 of general LED bulb 1 is made by plastic material, so when handling the heat dissipation technology problem, the heat when utilizing LED 121 inner encapsulation is conducted, or the design of radiator structure own, processing cost control, volume and weight during with respect to encapsulation have certain restriction; Therefore, common heat dissipation technology, still in the majority with the radiator structure 14 of on lamp housing 11, setting up radiating fin etc., but such radiator structure 14, not only increased outside the volume and weight of LED bulb 1 itself, also the space that inside is used for installing lamp plate 12 can be compressed relatively, and the little LED of power 121 can't be used.

And the above-mentioned known shortcoming of the artificial solution of this creation, design a kind of heat dissipation element, can under the situation of not reducing the inner space, have better heat radiating effect, and in conjunction with by the lamp plate that a plurality of low-power LED constituted, and the LED lamp bulb structure of good illumination effect is arranged.

Summary of the invention

The purpose of this utility model is that the radiator structure that solves existing light emitting diode bulb increases the volume and the weight of bulb itself, and the technical problem of reduction bulb inner space.

For reaching above-mentioned purpose, the utility model provides a kind of light emitting diode bulb, includes at least: a lamp housing, a heat dissipation element, a lamp plate, a control circuit board, and a power connection seat.Wherein, this lamp housing is made by the plastic cement material of light-permeable, and its inside has an accommodation space, and this accommodation space one end is provided with the opening of a convergent; And heat dissipation element is formed by mutually assembling by a heat pipe and a heat-conducting block, when heat dissipation element is mounted on lamp housing, heat pipe is located in the accommodation space, and the opening of heat-conducting block sealing accommodation space; This lamp plate is coated on the outside of heat pipe; This control circuit board and lamp plate electrically connect; This power connection seat is located at the other end of this heat-conducting block, and is formed with for the accommodation space of placing this control circuit board.In view of the above, the utility model sees through heat dissipation element, and the heat when in the mode of conduction lamp plate being used is sent to the heat-conducting block surface that is positioned at the outside, and disperses to atmosphere, to prolong the service life of lamp plate.

In one embodiment, the plating of the inner face of this lamp housing is provided with the plated film layer that one deck has the sheen effect, so that the light that lamp plate sent is more even.This heat pipe profile is proportional the dwindling of profile of this lamp housing, and an end is provided with opening, and this opening outside is provided with the threaded portion.The center of this heat-conducting block is provided with a screw, and has been peripherally installed with a plurality of radiating fins.This power connection seat is provided with one section group connecting part of being made by plastic cement material, with the power part that one section metal material is made, and this control circuit board of power supply property connection.This lamp plate uses the metal substrate of flexible circuit board or tool ductility, is provided with a plurality of light emitting diodes thereon, the brightness in the time of can improving its use.

The beneficial effects of the utility model are, the heat when dispersing use fast by heat dissipation element, and increase the service life; Use has the plated film layer of sheen effect, can make luminosity more even; Use a plurality of light emitting diodes, can improve the brightness when luminous.

Description of drawings

Fig. 1 is the structural representation of known light emitting diode bulb;

Fig. 2 is the three-dimensional exploded view of the utility model preferred embodiment;

Fig. 3 is the stereo appearance figure after the utility model preferred embodiment assembling;

Fig. 4 is the assembled sectional view of the utility model preferred embodiment;

Fig. 5 is the stereo appearance figure of another preferred embodiment of the utility model.

Description of reference numerals:

The 1-LED bulb; The 11-lamp housing; The 12-lamp plate; 121-LED; The 13-power connection seat; The 131-control circuit board; The 14-radiator structure; The 2-lamp housing; The 21-accommodation space; The 22-opening; 23-plated film layer; The 3-heat dissipation element; The 31-heat pipe; The 311-opening; The 312-threaded portion; The 32-heat-conducting block; The 321-screw; The 322-radiating fin; The 4-lamp plate; The 41-flexible circuit board; The 42-light emitting diode; The 43-protuberance; The 44-metal substrate; The 45-light emitting diode; The 46-folding line; The 47-protuberance; The 5-control circuit board; The 51-electronic component; The 6-power connection seat; The 61-accommodation space; The 62-group connecting part; The 63-power part.

The specific embodiment

Below pass through particular specific embodiment, and be used for illustrating embodiment of the present utility model, by the content that this specification disclosed, understand advantage of the present utility model and effect easily for those skilled in the art.It should be noted, below graphic be that simplified schematic is graphic, and basic conception of the present utility model only is described in a schematic way, only the illustration structure relevant with the utility model but not component number, shape and size when implementing according to reality are drawn in graphic, kenel, quantity and the ratio of each element are not to exceed with diagram during its actual enforcement, can need change according to actual design.

See also Fig. 2, shown in Figure 3, be a preferred embodiment of the present utility model, structural representation in the specific implementation.And light emitting diode bulb of the present utility model, its main member comprises:

One lamp housing 2, similar to the shape of general conventional bulb, in the present embodiment, this lamp housing 2 is made with the plastic cement or the glass of light-permeable, and has an accommodation space 21 in the inside of this lamp housing 2, and an end of this accommodation space 21 is provided with the opening 22 of a convergent; It should be noted, be provided with the plated film layer 23 (seeing also Fig. 4) that one deck has the sheen effect in the plating of the inner face of lamp housing 2, the state that slightly presents cloudy surface that lamp housing 2 is seen by the outside.

One heat dissipation element 3 is formed by mutually assembling by a heat pipe 31 and a heat-conducting block 32, and this heat dissipation element 31 is located at the end that this lamp housing 2 has opening 22, so that this heat pipe 31 is located in this accommodation space 21 opening 22 of these heat-conducting block 32 these accommodation spaces 21 of sealing; And then, this heat pipe 31 is shaped as proportional the dwindling of these lamp housing 2 profiles, and an end is provided with opening 311, and these opening 311 outsides are provided with threaded portion 312, when this heat pipe 31 is arranged in the accommodation space 21 of this lamp housing 2, makes between this heat pipe 31 and this lamp housing 2 inner faces and maintain fixing spacing; Yet, the center of this heat-conducting block 32 is provided with a screw 321, and a plurality of radiating fins 322 have been peripherally installed with, threaded portion 312 by this heat pipe 31, but spiral shell is located at the screw 321 of this heat-conducting block 32 and group is set as one, and the radiating fin 322 by heat-conducting block 32 outsides increases area of dissipation, with effective lifting radiating efficiency.

One lamp plate 4, be selected from general common flexible circuit board, this kind flexible circuit board has flexual characteristics, and can be used to coat fully the surface of being located at this heat pipe 31, this lamp plate 4 is provided with a plurality of light emitting diodes 42, it should be noted that the utility model can select lower powered light emitting diode 42 for use, and then reach power saving and promote the purpose of brightness; And then, at a lateral margin of this lamp plate 4, being provided with a plurality of protuberances 43, the bent blind end that is coated on this radiating tube 31 is so that lamp plate 4 coats the surface of this heat pipe 31 fully.

One control circuit board 5, it is provided with at least one electronic component 51, and this electronic component 51 has the effect of voltage stabilization and current stabilization, and this control circuit board 5 is electrically connected to this lamp plate 4, when guaranteeing that this lamp plate 4 uses, the effect of good stable voltage and stabling current is arranged; And

One power connection seat 6, be located at the other end of this heat-conducting block 32, form betwixt for an accommodation space 61 of placing this control circuit board, and this power connection seat 6 is provided with one section group connecting part 62 of being made by plastic cement material, and one section power part 63 that metal material is made, this control circuit board 5 of power supply property connection makes this lamp plate 4 can obtain shinny required electric energy.

During use, please consult Fig. 3, Fig. 4 simultaneously, the utility model spiral shell is located at general lamp socket (this is not shown in the figures), make the power connection seat 6 can power taking in this lamp socket, it is shinny that electric energy drives this lamp plate 4 through control circuit board 5, because the utility model is when shinny, each light emitting diode 42 all can produce heat, and heat conducted to heat pipe 31, and conduct to gradually on the heat-conducting block 32 again, utilize the radiating fin 322 of heat-conducting block 32 peripheries that heat is dispersed; And then because lamp plate 4 of the present utility model is coated on heat pipe 31 surfaces fully, and

heat pipe

31 and 2 of this lamp housings have constant spacing, so each light emitting diode 42 is identical with the spacing of these lamp housing 2 inwalls, and luminous brightness promoted and more even; Again, the plated film layer 23 of lamp housing 2 inner faces, the light that lamp plate 4 is sent becomes softer, and the light that sends of approaching general conventional bulb more.

In addition, see also shown in Figure 5, the employed lamp plate 4 of the utility model has another specific embodiment, it adopts the metal substrate 44 of tool ductility, and be provided with a plurality of light emitting diodes 45 in this metal substrate 44, the surface of this lamp plate 4 is provided with a plurality of folding lines 46 in addition, and a plurality of protuberances 47 of being located at a lateral margin, the folding line 46 that this lamp plate of mat 4 is set, convenience when increasing bending, and can make bending back protuberance 47 can coat the blind end of this heat pipe 31 fully, and reach the effect identical with the lamp plate 4 of employing flexible circuit board 41.

As mentioned above, to shown in Figure 5, the utility model will have following advantage when implementing as Fig. 2:

1. the utility model is coated on the heat pipe 31 of heat dissipation element 3 fully by lamp plate 4, and utilizes the heat-conducting block 32 of this heat dissipation element to expose, and effectively conducts the heat that is produced when luminous, effectively to increase the service life.

2. because lamp plate 4 of the present utility model is provided with a plurality of lower powered light emitting diodes 41, it is power saving more not only, and can effectively promote brightness.

3. 2 of heat pipe 32 of the present utility model and lamp housings have constant spacing, and the light that lamp plate 4 is sent is more even, and the plated film layer 23 of lamp housing 2 inside, and the effect of sheen is also arranged.

But; above said content only is preferred embodiment of the present utility model; be not in order to limit the scope that the utility model is implemented; other are as the material of lamp plate, the quantity of light emitting diode or arrangement mode; or even the transformations such as shape formula of heat dissipation element, also among protection domain of the present utility model.

The above specific embodiment only is preferred embodiment of the present utility model, and it is illustrative for the utility model, and nonrestrictive.Those skilled in the art carries out conversion, modification even equivalence to it under the situation that does not exceed the utility model spirit and scope, these changes all can fall into claim protection domain of the present utility model.

Claims

1. a light emitting diode bulb is characterized in that, comprising:

One lamp housing, its inside has an accommodation space, and this accommodation space one end is provided with an opening;

One heat dissipation element comprises a heat pipe and a heat-conducting block, and this heat dissipation element is located at the end that this lamp housing has opening, and this heat pipe is located in this accommodation space, and this heat-conducting block seals the opening of this accommodation space;

One lamp plate coats the surface of being located at this heat pipe fully, and this lamp plate is provided with a plurality of light emitting diodes;

One control circuit board is provided with the voltage stabilization and current stabilization circuit, and this control circuit board is electrically connected to this lamp plate; And

One power connection seat is located at the other end of this heat-conducting block, forms an accommodation space, and this control circuit board places in this accommodation space, and this power connection seat and this control circuit board electrically connect.

2. light emitting diode bulb as claimed in claim 1 is characterized in that, the inner face plating of this lamp housing is provided with one deck sheen plated film layer.

3. light emitting diode bulb as claimed in claim 1 is characterized in that, the lamp housing shape is proportional dwindles for this for this heat pipe profile, and an end is provided with opening, and this opening outside is provided with the threaded portion.

4. light emitting diode bulb as claimed in claim 1 is characterized in that the center of this heat-conducting block is provided with a screw, and has been peripherally installed with a plurality of radiating fins.

5. light emitting diode bulb as claimed in claim 1 is characterized in that, this power connection seat is provided with one section group connecting part of being made by plastic cement material, and one section power part that metal material is made, this control circuit board of power supply property connection.

6. light emitting diode bulb as claimed in claim 1 is characterized in that, this lamp plate uses flexible circuit board, and this lamp plate is provided with a plurality of light emitting diodes, and a lateral margin of this lamp plate is provided with a plurality of protuberances in addition, coats this heat pipe fully after the described protuberance bending.

7. light emitting diode bulb as claimed in claim 1, it is characterized in that, this lamp plate makes the metal substrate of apparatus ductility, this lamp plate is provided with a plurality of light emitting diodes, the surface of this lamp plate is provided with a plurality of folding lines in addition, and a plurality of protuberances of being located at a lateral margin, coat this heat pipe after the described protuberance bending fully.