CN102192421B

CN102192421B - Lighting device

Info

Publication number: CN102192421B
Application number: CN201010150706.8A
Authority: CN
Inventors: 裴建昌; 戴君仰; 王仁晖
Original assignee: Everlight Electronics Co Ltd
Current assignee: Everlight Electronics Co Ltd
Priority date: 2010-03-16
Filing date: 2010-03-16
Publication date: 2014-05-14
Anticipated expiration: 2030-03-16
Also published as: CN102192421A

Abstract

The invention provides a lighting device. The lighting device comprises a first heat radiation body, a second heat radiation body, a light source module, a light-transmitting element, and a driving circuit module. The first heat radiation body is provided with an inner side periphery and an inner side bottom which are used for forming an accommodation space on the first heat radiation body. The second heat radiation body is provided with a top and a bottom relative to the top and a through hole extending from the top to the bottom is formed; and the top of the second heat radiation body is connected with the first heat radiation body. The light source module is arranged on the inner side bottom of the first heat radiation body. The light-transmitting element is arranged in the accommodation space of the first heat radiation body and covers the light source module. The driving circuit module is arranged in the through hole of the second heat radiation body and is electrically connected with the light source module and drives the light source module.

Description

Lighting device

Technical field

The invention relates to a kind of lighting device, particularly a kind ofly take into account radiating effect, embedded lock solid structure and meet the lighting device of electrical rules.

Background technology

Lighting device is the indispensable important item of the modern life.Wherein, the bulb that lighting device uses has been played the part of the pivotal player that affects lighting device quality, and accordingly, therefore improvement bulb miscellaneous develops, to increase the usefulness of lighting device.At present, because light emitting diode (Light emitting diode, LED) has advantages of high service life, high-luminous-efficiency, power saving and switching over immediately, therefore just replace gradually conventional bulb, become following lamp source usage trend.

Light emitting diode is in the time using, and its stability and service life and heat radiation itself are measured one's own ability closely bound up, and in other words, it is the considerable factor of effective utilization that affects light emitting diode that heat radiation is measured one's own ability.Therefore,, in the time that lighting device uses light emitting diode as light source, just need to seek for the problem of heat radiation the approach solving especially.But use on the market the lighting device of light emitting diode at present, use the mode of natural heat dissipation more, its effect is also not satisfactory; Therefore, on the lighting device of light emitting diode, configure special radiator structure, become main trend.

But the normal radiator structure using of lighting device, has numerous and diverse Element Design mostly at present, except causing the inconvenience of assembling, its outward appearance also brings people and feels in a jumble.What is more, the mechanical realization of many lighting devices often, in order to meet the demand of heat radiation or moulding, cannot meet the requirement of electrical security legislation completely, cannot be in selling on the market.

In sum, how in using the lighting device of light emitting diode, take into account heat radiation, attractive in appearance and meet electrical rules, be the target that industry is needed effort badly simultaneously.

Summary of the invention

An object of the present invention is to provide a kind of lighting device, and it is provided with special structure on radiator, can make the integral heat sink effect of lighting device obtain lifting.

Another object of the present invention is to provide a kind of lighting device, it is in integrally-built assembling, there is concealed sealed design, there is no composition element exposing etc., except attractive in appearance, because the lighting device after assembling has advantages of tamper, if disassemble by force, certainly will carry out and leave a trace in destructive mode.Therefore, lighting device of the present invention can be guaranteed to buy the homogeneity of product during this section to consumer after it dispatches from the factory.

Another object of the present invention is to provide a kind of lighting device, and the drive circuit that it has and mechanism design, to increase creep age distance, make lighting device of the present invention more easily meet increasingly strict electrical security legislation.

For reaching above-mentioned purpose, the present invention discloses a kind of lighting device, and it comprises the first radiator, the second radiator, light source module, translucent element and drive circuit module.Wherein, the first radiator has inner side periphery and inside bottom surface, to form accommodation space on the first radiator; The second radiator has top and the bottom with respect to top, and forms through hole, extends to bottom from top, and the second radiator engages with the first radiator with top; Light source module is arranged in the inside bottom surface of the first radiator; Translucent element is arranged in the accommodation space of the first radiator and covers light source module; Drive circuit module is arranged in the through hole of the second radiator, in order to be electrically connected and driving light source module with light source module.

Useful technique effect of the present invention is: lighting device provided by the present invention can realize that lock solid structure does not expose simultaneously, excellent in heat dissipation effect and meet electrical rules.

Accompanying drawing explanation

For above-mentioned purpose, technical characterictic and advantage can be become apparent, below in connection with accompanying drawing, preferred embodiment of the present invention is elaborated, wherein:

Fig. 1 is the schematic diagram of lighting device of the present invention;

Fig. 2 A-Fig. 2 B is the decomposing schematic representation of lighting device of the present invention;

Fig. 3 A is the top view of lighting device of the present invention;

Fig. 3 B is that lighting device of the present invention is in Fig. 3 A, along the profile of B-B ' direction;

Fig. 3 C is that lighting device of the present invention is in Fig. 3 A, along the profile of C-C ' direction;

Fig. 4 is the decomposing schematic representation of drive circuit module of the present invention; And

Fig. 5 is the circuit diagram of drive circuit board of the present invention.

The specific embodiment

Below will lighting device of the present invention be described by embodiment, but, be only explaination the present invention about the explanation of embodiment, but not in order to limit the present invention.Must first specify, in following embodiment, will first describe for the unitary construction of lighting device, the effect that forms structure, radiating effect for it respectively more subsequently and meet electrical security legislation describes in detail one by one.

First, please also refer to Fig. 1 and Fig. 2 A-Fig. 2 B, wherein, Fig. 1 is the schematic diagram of lighting device 1 of the present invention, and Fig. 2 A-Fig. 2 B is the exploded view of lighting device 1.As shown in Figure 2 A, lighting device 1 includes the first radiator 11, the second radiator 12, light source module 13, translucent element 14, drive circuit module 15 and conjunction 16.Aforementioned spare part is that the relative position illustrating by Fig. 2 A is assembled.

Please further refer to Fig. 2 B.Generally speaking, the first radiator 11 has an inner side periphery 110 and an inside bottom surface 112, and forms an accommodation space 114, in order to accommodating light source module 13, light source module 13 can be fixedly installed in the inside bottom surface 112 of the first radiator 11.Translucent element 14 is arranged in the accommodation space 114 of the first radiator 11, to cover and to protect light source module 13.Particularly, the first radiator 11 is formed with in addition at least one the first connect apertures 1120 in inside

bottom surface

112,14 of translucent elements have at least one fastener 140 corresponding at least one the first connect apertures 1120, make translucent element 14 can pass through at least one fastener 140, be sticked at least one the first connect apertures 1120, use translucent element 14 is fixed on the first radiator 11.Must be ben, the quantity of fastener 140 in this implements is four, therefore, the first connect apertures 1120 that corresponds to fastener 140 is also made as four equally.But it is not in order to limit the mode of its quantity and engaging.

The second radiator 12 has a top 120 and the bottom 122 with respect to top 120, and forms in central authorities a through hole 124 that is extended to bottom 122 by top 120.Wherein, through hole 124 is in order to accommodating drive circuit module 15, and in other words, drive circuit module 15 arranges and in the through hole 124 of the second radiator 12.

Be fixed in drive circuit module 15 after the through hole 124 of the second radiator 12, the second radiator 12 just can engage with the first radiator 11 on top 120 further.Specifically, the first radiator 11 is formed with at least one the second connect apertures 1122 in inside bottom surface 112, on the second radiator 12, be formed with at least one the 3rd connect apertures 1202 of corresponding at least one the second connect apertures 1122, on light source module 13, be formed with at least one the 4th connect apertures 130 corresponding to the second connect apertures 1122.Can utilize subsequently conjunction 16, by at least one the second connect apertures 1122 and at least one the 4th connect apertures 130, light source module 13 is fixed on to the inside bottom surface 112 of the first radiator 11, and again by least one the second connect apertures 1122 and at least one the 3rd connect apertures 1202, by sealed to the first radiator 11 and the second radiator 12, thus, can be by the first radiator 11, the second radiator 12 and light source module 13 threes in addition in conjunction with fixing.

Must be ben, in the present embodiment, conjunction 16 is four pieces of screws shown in figure, therefore, the second connect apertures 1122 just can, in response to the screw quantity in conjunction 16, similarly be set to four; Similarly, the 3rd connect apertures 1202 of the second radiator 12 and the 4th connect apertures 130 of light source module 13, be also set to four accordingly.But the quantity of kind, quantity and the connect apertures of conjunction, is only that it is non-in order to limit the mode of combination in order to illustrate.

Detailed combination is please also refer to Fig. 3 A-Fig. 3 C, and Fig. 3 A is the top view of lighting device 1, and Fig. 3 B is the profile of B-B ' in Fig. 3 A, and Fig. 3 C is the profile of C-C ' in Fig. 3 A.By knowing and learn in Fig. 3 B, the connect apertures at above-mentioned each position is all formed at the inside of each element, and therefore, conjunction 16 can complete in the inside of lighting device 1 entirety the combination of the first radiator 11, the second radiator 12, light source module 13 and translucent element 14; And from Fig. 3 C, fastener 140 is done combination with mode and first radiator 11 of snap fit.According to above-mentioned content, owing to being all positioned at lighting device 1 inside after lock member (as fastener 140 and conjunction 16) assembling, therefore lighting device 1 cannot go out mode and the setting of its combination from the appearance, and then reach the object of tamper, make the entirety of device present the effect attractive in appearance compared with tool simultaneously.

What wherein must illustrate in addition is, light source module 13 comprises a circuit substrate 132 and is placed at least one light-emitting component 134 on circuit substrate 132, and translucent element 14 is preferably local formation and comprises at least one lens arrangement (not illustrating) that corresponds at least one light-emitting component 134, further assemble in order to the light that light-emitting component 134 is projected, to strengthen light intensity or to adjust overall light type.Palpus lay special stress on, in this embodiment, light-emitting component 134 is four light emitting diodes, comprises four corresponding lens arrangements, to assemble respectively four light that light emitting diode was projected therefore translucent element 14 can design.Translucent element 14 can be made up of Merlon (PC) or acryl (PMMA).But above-mentioned number of elements and material, not in order to limit the present invention.

Please again consult Fig. 2 B, see it with the angle of dispelling the heat, the first radiator 11 can design has multiple ribs 116, be located on the peripheral edge margin of the

first radiator

11, and 116 definables of rib goes out multiple hole slots 118, in order to dispersing of heat; The second 12 of radiators have multiple fins 126, are located on the peripheral edge margin of the second radiator 12, and to be corresponding rib 116 distribute the quantity of fin 126 and position, when after the first radiator 11 and the second radiator 12 assemblings, can obtain structural uniformity.By above-mentioned structure, can significantly increase the area that radiator contacts with air, to strengthen radiating effect.Similarly, the material of the first radiator 11 and the second radiator 12 is to be selected from preferably heat radiating metal, for example aluminium or copper, but not as limit.

Then please refer to Fig. 4, it is the exploded view of drive circuit module 15.Drive circuit module 15 comprises an outer cover body 150, a lid 152, an electrode column 154 and at least one drive circuit board 156.Wherein, outer cover body 150 has a first end 1501, and the second end 1502 relative with first end 1501, and is formed with an opening 1503 in first end 1501; Lid 152 is arranged at the first end 1501 of outer cover body 150, in order to seal this opening 1503, and jointly defines an inner space with outer cover body 150; And electrode column 154 is arranged on the second end 1502 of outer cover body 150; And at least one drive circuit board 156 is just arranged at this inner space, and do electrically connect with electrode column 154 and light source module 13 simultaneously.Thus, by above-mentioned setting, can between housing, increase creep age distance, to meet electrical security legislation.Should be specified, in this embodiment, be provided with two drive circuit boards 156, and link in mutually perpendicular mode, thus, by this kind of structure, can increase the magnitude setting of electronic component on circuit board, and relatively reduce the overall volume of drive circuit module 15.

Preferably, during for fear of the second radiator 12 and drive circuit module 15 in assembling, both facts such as rotate or get loose can be designed in the structure of the second radiator 12 and drive circuit module 15.Specifically, through hole 124 be from top 120 towards bottom 122 convergents, and the outer cover body 150 of drive circuit module 15 also from first end 1501 towards the second end 1502 convergents; More preferably, the outer cover body 150 of drive circuit module 15, presents all in fact a non-cylindrical with this through hole 124.Thus, drive circuit module 15 can be because of the restriction on said structure, be placed in easily through hole 124 and do not rotate or get loose, and assembling is upper just can be located as easy as rolling off a log.

Then, please refer to Fig. 5, its Power Management Design for using in drive circuit module 15.It is mainly input AC electricity to rectification module 1561, eliminate electromagnetic interference by an emi-filter module 1562 again, by a large electric capacity 1563, the all-wave waveform transformation of alternating current is become to DC waveform immediately, then a modular converter 1564 is just with high frequency switched voltage, allow a transformer 1565 be discharged and recharged conversion output, and control output voltage electric current, last transformer 1565 is by electromagnetic induction, convert high voltage to low-voltage output to light emitting diode 1566, to make light emitting diode 1566 be obtained normal working power.

Due to lighting device provided by the present invention, it has above-mentioned characteristic in structure, therefore, just can reach that lock solid structure does not expose, excellent in heat dissipation effect and meet the advantages such as electrical rules simultaneously.

The above embodiments only, in order to exemplify enforcement aspect of the present invention and to explain technical characterictic of the present invention, are not used for limiting category of the present invention.Any be familiar with this operator can unlabored change or the arrangement of isotropism all belong to the scope that the present invention advocates, interest field of the present invention should be as the criterion with claim.

Claims

1. a lighting device, is characterized in that, comprises:

One first radiator, has an inner side periphery and an inside bottom surface, to form an accommodation space on this first radiator;

One second radiator, have a top and the bottom with respect to this top, on this second radiator, form a through hole, this top extends to this bottom certainly, and the top of this second radiator is towards this bottom convergent certainly, this second radiator engages with this first radiator with this top;

At least one conjunction, is arranged in this accommodation space, in order in conjunction with this first radiator and this second radiator;

One light source module, is arranged in the inside bottom surface of this first radiator;

One translucent element, is arranged in the accommodation space of this first radiator and covers this light source module; And

Driving circuit module, is arranged in the through hole of this second radiator, in order to be electrically connected and to drive this light source module with this light source module,

This drive circuit module comprises an outer cover body, has a first end and a second end relative with this first end, and this first end forms an opening, and wherein this outer cover body is towards this second end convergent from this first end.

2. lighting device according to claim 1, it is characterized in that, this first radiator is also formed with at least one the first connect apertures in this inside bottom surface, this translucent element has at least one fastener, correspondence is sticked in this at least one the first connect apertures, by this, this translucent element is fixed on this first radiator.

3. lighting device according to claim 1, it is characterized in that, on this first radiator, be formed with at least one the second connect apertures, on this second radiator, be formed with at least one the 3rd connect apertures corresponding to this second connect apertures, this at least one conjunction is locked in this at least one second connect apertures and this at least one the 3rd connect apertures.

4. lighting device according to claim 3, is characterized in that, is formed with at least one the 4th connect apertures corresponding to this second connect apertures on this light source module, wears for this at least one conjunction, by this, this light source module is fixed in this inside bottom surface.

5. lighting device according to claim 1, is characterized in that, this at least one conjunction comprises a screw.

6. lighting device according to claim 1, is characterized in that, this first radiator has multiple ribs, is located on a peripheral edge margin of this first radiator, and between these ribs, definable goes out multiple hole slots.

7. lighting device according to claim 6, is characterized in that, this second radiator has multiple fins, is located on a peripheral edge margin of this second radiator, and these fins distribute corresponding to these ribs.

8. lighting device according to claim 1, is characterized in that, the material of this first radiator and this second radiator be selected from aluminium and copper one of them.

9. lighting device according to claim 1, is characterized in that, this light source module comprises a circuit substrate and is arranged at least one light-emitting component on this circuit substrate.

10. lighting device according to claim 9, is characterized in that, this at least one light-emitting component comprises a light emitting diode.

11. lighting devices according to claim 9, is characterized in that, this translucent element also comprises at least one lens arrangement, and this at least one lens arrangement is that Local Shape is formed in this translucent element corresponding to this at least one light-emitting component.

12. lighting devices according to claim 1, is characterized in that, this translucent element is made by Merlon or acryl.

13. lighting devices according to claim 1, is characterized in that, this drive circuit module comprises:

One lid, is arranged at the first end of this outer cover body, to seal this opening, and defines an inner space with this outer cover body;

One electrode column, is arranged on the second end of this outer cover body; And

At least one drive circuit board, is arranged at this inner space, is electrically connected with this electrode column and this light source module.

14. lighting devices according to claim 13, is characterized in that, this outer cover body is to cooperatively interact with the shape of this through hole.

15. lighting devices according to claim 13, is characterized in that, this outer cover body and this through hole present in fact a non-cylindrical.