CN2786421Y

CN2786421Y - LED lighting device

Info

Publication number: CN2786421Y
Application number: CNU2005200048878U
Authority: CN
Inventors: 李明顺; 孙平如
Original assignee: LIZHOU SCIENCE-TECHNOLOGY Co Ltd
Current assignee: LIZHOU SCIENCE-TECHNOLOGY Co Ltd; Taiwan Oasis Technology Co Ltd
Priority date: 2005-02-23
Filing date: 2005-02-23
Publication date: 2006-06-07
Anticipated expiration: 2015-02-23

Abstract

The utility model relates to a light-emitting diode lighting device and at least comprises a bulb seat, a heat elimination component, a plastic upper cover, a driving basal plate, a metal basal plate, an insulating ring seat and an outer shell, wherein the heat elimination component and the plastic upper cover are fixed on the bulb seat. The plastic upper cover is provided with a ring groove capable of holding the heat elimination component and the driving basal plate, and the driving basal plate is fixedly arranged on the bottom part of the ring groove. The upper part of the heat elimination component is coated with heat transferring oil normally contacting the metal basal plate, and the metal basal plate is provided with a plurality of light-emitting diodes controlled by the driving basal plate. The upper part of the ring groove is provided with the insulating ring seat, and the insulating ring seat is provided with a ring rim capable of pressing the driving basal plate in the lower direction. Simultaneously, the metal basal plate is pressed and positioned by the inner cavity of the insulating ring seat, and the upper part of the insulating ring seat is sheathed with the outer shell. Therefore, the light-emitting diode lighting device is formed. When the heat elimination component normally contacts the metal basal plate, the heat source generated by the process of emitting the light of each light-emitting diode is transferred to the heat elimination component by the metal basal plate. Then the heat source is transferred to the bulb seat by the heat elimination component, and the heat source is effectively dropped away in order to sustain the light-emitting power of each light-emitting diode.

Description

LED lighting device

Technical field

The utility model relates to utilize light-emittingdiode to form the lighting apparatus of light emitting source, is meant a kind of LED lighting device that the luminous thermal source that produces of light-emittingdiode is effectively left especially.

Background technology

Press, lighting apparatus is the indispensable people's livelihood articles for use of the modern life, although difference with modernization and quality of the life demand, desirability to lighting apparatus is also different, and general osram lamp and mercury fluorescent tube are present the most general conventional illumination device, wherein in the luminescence process of osram lamp, most electric energy can be converted to radiant heat, therefore luminous efficacy is high and radiant heat that it produced is very high, is not suitable for inhabiting the hot area of weather to use; Though and the luminous efficacy of mercury fluorescent tube is better than osram lamp, but the mercury that tube inner wall is smeared, be dropped Shi Zehui in fluorescent tube and cause environmental pollution, and in recent years because the developmental research meter that each advanced country actively drops into optoelectronic semiconductor is encouraged, more develop and a kind of light-emittingdiode that replaces traditional lighting.

Light-emittingdiode is a kind of semiconductor element, so its life-span is longer, and the efficient that is converted to luminous energy by electric energy is also higher, power consumption is lower, with general conventional bulb by comparison, the life-span of light-emittingdiode bulb will exceed 50-100 doubly than tool, and the power consumption of diode own is the 1/3-1/5 of general bulb approximately, and because white luminous diode bulb has above-mentioned multiple advantages, therefore be expected to replace osram lamp and mercury fluorescent tube, become the new lighting source that has power saving and environmental protection notion concurrently in 21st century; Yet, general light-emittingdiode bulb 1 is that many light-emittingdiodes 11 are concentrated at together, as shown in Figure 1, and wherein by a glass cover body 12 sealings, the thermal source that is produced when easily causing these light-emittingdiodes 11 luminous can't effectively leave, and can't under normal condition, operate, cause light-emittingdiode bulb 1 to have higher fault rate.

The utility model content

The main purpose of the utility model LED lighting device is can utilize a radiating piece and substrate to do normality to contact the time, make the luminous thermal source that produces of each light-emittingdiode, conduct to radiating piece by substrate, by radiating piece thermal source is effectively left again, to keep the luminous power of each light-emittingdiode.

For reaching above-mentioned purpose, LED lighting device of the present utility model includes at least: a tube face, radiating piece, the plastic cement loam cake, drive substrate, metal substrate, insulation ring seat and shell, this radiating piece and plastic cement loam cake are to be fixed on the tube face, the plastic cement loam cake has can ccontaining radiating piece and drive the annular groove of substrate, driving substrate is fixedly arranged on the annular groove bottom and several electronic components is housed, radiating piece top scribbles conduction oil and does normality with metal substrate and contact, metal substrate is provided with a plurality of light-emittingdiodes that driven substrate control, the annular groove top is provided with an insulation ring seat, its insulation ring seat has a ring limit can suppress the driving substrate of below, the ring seat that insulate simultaneously inner chamber is pushed down the location with metal substrate, and insulation ring seat top then is arranged with a shell; Wherein, this driving substrate circuit is connected with joint, and to borrow joint to receive the driving substrate circuit external power source, the voltage that drives the substrate generation is luminous for each light-emittingdiode on the metal substrate, reaches the function of illumination.

Adopt said structure, can obtain a kind of LED lighting device that the luminous thermal source that produces of light-emittingdiode effectively can be left.

Description of drawings

Fig. 1 is the structural perspective that the light-emittingdiode bulb is arranged for habit;

Fig. 2 is the structural perspective for LED lighting device in the utility model;

Fig. 3 is the structural upright exploded view for LED lighting device in the utility model;

Fig. 4 is the structural representation for LED lighting device in the utility model.

[figure number explanation]

1 light-emittingdiode bulb, 11 light-emittingdiodes

12 glass cover bodies, 20 tube faces

21 groove seats, 22 joints

30 radiating pieces, 31 reference columns

32 louvres, 33 conduction oils

40 plastic cement loam cakes, 41 annular grooves

42 bearings, 43 louvres

50 metal substrates, 51 locating slots

60 light-emittingdiodes 70 drive substrate

81 internal threads, 82 external screw threads

91 insulation ring seats, 911 ring limits

92 through holes, 93 shells

The specific embodiment

For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:

The utility model LED lighting device, its basic structure is formed as shown in Figures 2 and 3, includes at least:

One tube face 20, it has the groove seat 21 that can install each element, and its end, is auspicious and be provided with a joint 22 and can form circuit with external circuit and be connected, and is equipped with internal thread 81 in its groove seat 21, is locked in regular turn on the ring seat 21 for radiating piece 30 and plastic cement loam cake 40.

One radiating piece 30, one end is to be fixed in the groove seat 21 of tube face 20, and the internal thread 81 in the radiating piece 30 mating groove seats 21 is formed with corresponding external screw thread 82, the other end is then done normality by conduction oil 33 with metal substrate 50 and is contacted, in this figure embodiment, its radiating piece 30 is provided with the reference column 31 and the locating slot 51 that can be involutory with the contact-making surface of metal substrate 50, and reference column 31 and locating slot 51 also are coated with conduction oil, makes reference column 31 clips in locating slot 51 and locate.

One plastic cement loam cake 40, be fixed in the above-mentioned groove seat 21, and the internal thread 81 in the plastic cement loam cake 40 downside mating groove seats 21 is formed with corresponding external screw thread 82, and plastic cement loam cake 40 and have can ccontaining radiating piece 30 and drive the annular groove 41 that helps substrate 70, and annular groove appropriate position, 41 bottom and be formed with a bearing 42 and put the location for driving substrates 70.

One metal substrate 50, be for metal material made, the material good as thermal diffusivities such as aluminium base copperclad plates, it is arranged in the annular groove 41, on the metal substrate 50 and be provided with a plurality of light-emittingdiodes 60, each light-emittingdiode 60 also is subjected to one to drive substrate 70 controls, and this driving substrate 70 also is connected with joint 22.

One insulation ring seat 91, which is provided with through hole 92, insulation ring seat 91 is located at annular groove 41 tops, its

annular groove

41 and 91 of ring seats of insulation are respectively equipped with the internal thread 81 and the external screw thread 82 that can be screwed, after making insulation ring seat 91 screw in annular groove 41, the driving substrate 70 and the metal substrate 50 of 911 belows, ring limit of insulation ring seat 91 makes metal substrate 50 be able to that strong fix is on radiating piece 30 more, and insulation ring seat 91 tops then are arranged with a shell 93.

One shell 93, it is that the form of a circular arc outer outlet body can with 60 claddings of each light-emittingdiode and sealing wherein can be high light-transmitting materials, to increase the light irradiation brightness.

During overall package, please be simultaneously with reference to shown in Figure 4, radiating piece 30 and plastic cement loam cake 40 are locked on the ring seat 21 in regular turn, and will drive substrate 70 and be fixed in annular groove 41 bottoms, the metal substrate 50 that is installed with several light-emittingdiodes 60 utilizes locating slot 51 to be placed on the reference column 32, and then metal substrate 50 is positioned on the radiating piece 30, the ring seat 91 that will insulate at last and fixed cap 92 screw in the annular groove 41, the driving substrate 70 that makes ring limit 911 compress the below is pushed down metal substrate 50 strong fixs simultaneously on radiating piece 30, make external circuit borrow joint 22 to conduct to and drive substrate 70 and import voltage into metal substrate 50 with lead, make each light-emittingdiode 60 luminous, reach the function of illumination.

What deserves to be mentioned is, when the utility model utilizes a radiating piece 30 (its material can be ceramic cylinder) and metal substrate 50 to do normality to contact, the thermal source that is produced when making each light-emittingdiode 60 luminous, conduct to radiating piece 30 by metal substrate 50, by radiating piece 30 thermal source is effectively left again, to keep the luminous power of each light-emittingdiode 60.

Moreover radiating piece 30 and plastic cement loam cake 40 can further be provided with a plurality of

louvres

32,43, as shown in Figure 4, make annular groove 41 inner and extraneous formation cross-ventilations, and thermal source is exhaled via each louvre 43, to strengthen heat sinking function.

As mentioned above, the LED lighting device that the utility model provides a kind of thermal source that light-emittingdiode is produced when luminous effectively to leave, so, offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be one of the utility model preferred embodiment, be not to limit to the utility model with this, be with, approximate with structure of the present utility model, device, feature etc. such as, identical, all should belong to creation purpose of the present utility model and claim in.

Claims

1, a kind of LED lighting device is characterized in that, includes at least:

One tube face, it has the groove seat that can install each element, and its bottom also is provided with a joint and can forms circuit with external circuit and be connected;

One radiating piece, an end are to be fixed in the groove seat of tube face, and other end is then done normality with metal substrate and contacted;

One plastic cement loam cake is fixed in the above-mentioned groove seat, and be provided with can ccontaining radiating piece and drive the annular groove of substrate;

One metal substrate is to be arranged in the insulation ring seat, and on the metal substrate and be provided with a plurality of light-emittingdiodes, each light-emittingdiode also is subjected to one to drive substrate and control, and this driving substrate also is connected with joint;

One insulation ring seat is located at annular groove top, has a ring limit and can suppress the driving substrate and the metal substrate of below, and with substrate orientation, insulation ring seat top then is arranged with a shell.

2, LED lighting device according to claim 1, it is characterized in that: this radiating piece is ceramic cylinder.

3, LED lighting device according to claim 1, it is characterized in that: this radiating piece is provided with a plurality of louvres.

4, LED lighting device according to claim 1, it is characterized in that: this poor seat ring is provided with internal thread, and radiating piece and plastic cement loam cake then cooperate this internal thread to form external screw thread, is locked on the ring seat in regular turn by this structure radiating piece and plastic cement loam cake.

5, LED lighting device according to claim 1, it is characterized in that: the contact-making surface of this radiating piece and metal substrate is provided with reference column and the locating slot that is involutory.

6, LED lighting device according to claim 1, it is characterized in that: the contact-making surface of this radiating piece and metal substrate is coated with conduction oil.

7, LED lighting device according to claim 1, it is characterized in that: this metal substrate is aluminium base copperclad plate.

8, LED lighting device according to claim 1 is characterized in that: be respectively equipped with the internal thread and the external screw thread that can be screwed between this annular groove and insulation ring seat.

9, LED lighting device according to claim 1 is characterized in that: this shell is the high light-transmitting materials that increases the light irradiation brightness.

10, LED lighting device according to claim 1 is characterized in that: be covered with a plurality of louvres on this plastic cement.

11, LED lighting device according to claim 1 is characterized in that: the appropriate position of this annular groove bottom is formed with one and puts the bearing of location for driving substrate.