CN202902035U - Lamp - Google Patents
Lamp Download PDFInfo
- Publication number
- CN202902035U CN202902035U CN2012204835904U CN201220483590U CN202902035U CN 202902035 U CN202902035 U CN 202902035U CN 2012204835904 U CN2012204835904 U CN 2012204835904U CN 201220483590 U CN201220483590 U CN 201220483590U CN 202902035 U CN202902035 U CN 202902035U
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- China
- Prior art keywords
- base portion
- hole
- light fixture
- radiator
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
A lamp comprises a radiator, a thermal conductive substrate, a shell body and an optical component, wherein the radiator comprises a base part and a plurality of radiator-fans, a first through hole is formed in the base part, the plurality of radiator-fans are formed on the outer surface of the base part and extend outwards to form inner end portions and outer end portions, the inner end portions of the plurality of radiator-fans define a hollow part, the thermal conductive substrate is fixed on the base part, a light source is fixed on the thermal conductive substrate, the shell body extends along the axial direction of the lamp and is used for containing a power source drive component which drives the light source, at least part of the shell body is arranged in the hollow part and one end of the shell body is connected with a lamp holder, the optical component is covered on the light source and fixed on the base part of the radiator, a through hole is formed in the optical component or between the optical component and the base part, and when the light source works, the hollow part, the first through hole and the second through hole form a first heat convection passage along the axial direction of the lamp. The lamp which is disclosed is capable of improving radiating efficiency of the lamp.
Description
Technical field
The utility model relates to a kind of light fixture, relates in particular to a kind of LED shot-light.
Background technology
Because long service life, the energy consumption of LED lamp are low, energy savings is remarkable, so the LED lamp has been widely used in the daily life as lighting source, for example a kind of illuminating LED shot-light.Yet, the LED shot-light when work caloric value large, if the heat that produces can not be in time with light source works the time sheds, can affect the normal work and use life-span of LED shot-light.At the LED lamp heat abstractor is housed for solving heat dissipation problem in the prior art, but because the coverage rate of optical element is larger, causes radiating effect not good, thereby affect the life-span of LED lamp.
The utility model content
For the radiating efficiency that improves light fixture and the bottleneck of breaking through current production, the utility model discloses a kind of light fixture, it comprises: radiator, it comprises base portion and a plurality of fin, described base portion has the first through hole, described a plurality of fin is formed on the outer surface of described base portion and stretches out and is formed with inner end and outer end, and the inner end of described a plurality of fins defines hollow space; Heat-conducting substrate is fixed on the described base portion, is fixed with light source on it; Housing, along extending axially of described light fixture, it is used for holding the power drives assembly that drives described light source, and described housing is at least partially disposed in the described hollow space and the one end is connected with lamp holder; Optical element, it covers on the described light source and is fixed on the base portion of described radiator, is formed with the second through hole on the described optical element or between described optical element and the described base portion; Wherein, when described light source works, described hollow space, described the first through hole and described the second through hole form basic along the first thermal convection current passage on the axial direction of described light fixture.
Preferably, a plurality of fins of described radiator stretch out and are limited by circumferential flange from the outer surface of described base portion, and described base portion, described circumferential flange and described a plurality of fin form a plurality of hollow out grids in circumferential edge; When described light source works, described a plurality of hollow out grids and described a plurality of fin define the second thermal convection current passage jointly.
Optionally, described heat-conducting substrate also has third through-hole, and when described light source works, described the first thermal convection current passage is formed by described hollow space, described the first through hole, third through-hole and described the second through hole.
Preferably, a plurality of fins of described radiator radially stretch out and are arranged in equably on the outer surface of described base portion from the outer surface of described base portion.
Particularly, the outer surface of the inner end of described a plurality of fins and described housing is spaced apart.
Particularly, described housing is column substantially, and its cross section is kidney-shaped or ellipse.
Preferably, at least two fins further extend to form the maintenance fin to hollow space respectively in a plurality of fins of described radiator, and described maintenance fin is used for keeping described housing.
Preferably, described housing is provided with locating support with outwards protruding out on an end opposite with described lamp holder, and described optical element is fixed on the base portion of described radiator by described locating support.
Particularly, described optical element comprises optical lens or reflector.
Particularly, described light source is at least one light emitting diode (LED).
Use light fixture disclosed in the utility model, can improve light efficiency.
Description of drawings
In order to explain the utility model, its illustrative embodiments will be described with reference to the drawings hereinafter, in the accompanying drawing:
Fig. 1 schematically shows the perspective view of a kind of embodiment of light fixture of the present utility model;
Fig. 2 schematically shows the front view of Fig. 1;
Fig. 3 schematically shows the top view of Fig. 1;
Fig. 4 schematically shows the explosive view of Fig. 1;
Fig. 5 diagrammatically shows the power supply of light fixture of Fig. 1 in the thermal convection current situation of when work air;
Similar features among the different figure is by similar Reference numeral indication.
The specific embodiment
In the detailed description of following embodiment, the accompanying drawing that reference consists of the part of this description describes.Accompanying drawing shows specific embodiment in the mode of example, and the utility model is implemented in these embodiments.Shown embodiment be not for limit according to all embodiments of the present utility model.The embodiment that is appreciated that other can be utilized, and change structural or logicality can be made under the prerequisite that does not break away from scope of the present utility model.For accompanying drawing, the term of directionality, such as D score, " on ", " top ", " bottom ", " axially ", " circumferentially ", " radially " etc., use with reference to the orientation of described accompanying drawing.Because the assembly of embodiment of the present utility model can be by in multiple orientation mode, these directional terminology are the purposes for explanation, rather than the purpose of restriction.Therefore, the following specific embodiment is not the meaning as restriction, and scope of the present utility model is limited by appending claims.
Such as Fig. 1-shown in Figure 4, a kind of light fixture 100, in an illustrated embodiment, this light fixture 100 is the LED shot-light, it comprises radiator 102, heat-conducting substrate 104, light source 106, housing 108, power drives assembly 110 and optical element 112.
Hereinafter, be installed in the relative position relation of describing on the indoor ceiling between each parts with this light fixture 100.
This radiator 102 passes through integrally formed such as injection molding by the metal material such as aluminium.This radiator 102 comprises base portion 114 and a plurality of fin 116, and wherein, base portion 114 forms by substantially rounded diapire 114a with from the downward sidewall 114b that generally perpendicularly extends of diapire 114a, and like this, this diapire 114a and sidewall 114b have formed container cavity.In addition, also has the first through hole 114c at the center of diapire 114a.A plurality of fin 116 adequate reliefs are formed on the outer surface of base portion 114, are formed with simultaneously the outer end 116b of rectilinear inner end 116a and arc along the axial direction extension of light fixture 100 thereby radially stretch out.Below, this outer end 116b is circumferentially limited by the flange 118 of circle, by this, the sidewall 114b of base portion 114, a plurality of fin 116 and flange 118 have formed a plurality of hollow out grids that are positioned at circumferential edge jointly.This outer end 116b converges smoothly and finally converges to together to inner end 116a gradually on direction from top to bottom, and like this, the outward appearance of a plurality of fins 116 seems the shape just as a similar round cap.The inner end 116a of a plurality of fins 116 defines hollow space 120.Two pairs of fins in above-mentioned a plurality of fin 116 are respectively to the hollow space 120 interior maintenance fins 122 that further extended to form, the inner end 122a of this maintenance fin 122 is used for keeping following housing 108, and wherein two pairs keep every a pair of each other along the axial symmetry of light fixture 100 in the fin 122.Above-mentioned two pairs of maintenance fins 122 can be thicker than other fins in order to form its thickness of following installation region thereon.Like this, as shown in Figure 4, the diapire 114a that the observer sees through base portion 114 is from bottom to top seen over, can see the part of the maintenance fin 122 that inwardly stretches out from diapire 114a.Keep the corresponding position of fin 122 with this, the sidewall 114b of base portion 114 is removed the part material and has formed the installation notch, simultaneously, this maintenance fin 122 that is connected with sidewall 114b also has been removed the part material so that it forms concordant installation region 124 with the bottom surface that notch is installed, in this installation region 124, be formed with screwed hole 126.Although being used for the number of the maintenance fin 122 of maintenance housing 108 in preferred embodiment is 4 and is arranged symmetrically with in twos, but be appreciated that, this keeps the number of fin 122 can also be for 2,3 or greater than other numbers of 4, and these keep fins according to the actual requirements (such as the shape of following housing 108) arrange in asymmetrical mode.
Those skilled in the art should be appreciated that, these a plurality of fins 116 might not radially extend, they also can be similar to the flabellum of fan and arrange like that, in production practices, a plurality of fins 116 are circumferential arrangement equably normally, but this and do not mean that arrangement heterogeneous and infeasible.In addition, although in above-mentioned preferred embodiment, base portion 114 is made of diapire 114a and sidewall 114b, wherein, sidewall 114b not only can play the effect of the intensity of strengthening whole radiator 102 but also can form container cavity and be convenient to the installation of heat-conducting substrate 104, but be appreciated that, in other embodiments, the base portion of radiator can only have diapire, simultaneously, optical element can have been set up sidewall, housing, heat-radiating substrate and optical element can be installed on the diapire of radiator and by the sidewall-masked of optical element, in the measure-alike situation of each element, this light fixture can be longer than the longitudinal length of the light fixture of Fig. 1-shown in Figure 4.That is to say, in the utility model, all can be called base portion as long as can form fin on it in order to the part that supports fin.
Heat-conducting substrate 104 is metal base printed circuit board in illustrated embodiment of the present utility model, the heart has third through-hole 128 therein, it is fixed on the diapire 114a of base portion 114 by screw 130, also be fixed with light source 106 on the lower surface of heat-conducting substrate 104, particularly, this light source 106 is four light emitting diodes (LED).It will be appreciated by those skilled in the art that, this heat-conducting substrate 104 also can be ceramic base printed circuit board, and, its shape is not subject to illustrated annular yet, for example, can be 2/3 annular, semi-circular or arc, the number of light emitting diode also can be for being not less than other numbers of 1, in addition, this heat-conducting substrate 104 also can be by on the base portion 114 that is adhesively fixed such as thermal grease.
Although the second through hole 140 is arranged on the optical element 112 in above-mentioned illustrated embodiment, it will be understood by those skilled in the art that this second through hole 140 can be formed between optical element 112 and the base portion 114.Be further appreciated that the quantity of lens 112b of this optical element 112 and unrestricted, for example, can only comprise that a slice lens can comprise that also multi-disc forms the array of the lens of various patterns.And lens supporting member 112a is not essential, and for example, this optical element 112 itself can be the complete lens of a slice or can be reflector etc.
When with above-mentioned each element assembling, the heat-conducting substrate 104 that will be fixed with first light source 106 is put into the container cavity that the base portion 114 of radiator 102 forms and is fixed to by securing member 130 on the diapire 114a of base portion 114; To accommodate again hollow space 120 that the lamp holder 134 of the housing 108 of power drives assembly 110 upwards limits through a plurality of fins 116 of the first through hole 114c on the diapire 114a of the base portion 114 of the third through-hole 128 of heat-conducting substrate 104, radiator 102 and radiator 102 successively and expose from the top of radiator 102; Simultaneously, the locating support 136 that is positioned at housing 108 other ends navigates to by the sidewall 114b of the base portion 114 of radiator 102 and keeps on the installation region 124 that fin 122 forms; Then, optical element 112 is covered on the light source 106, and securing member 142 passes through hole 138 on the locating support 136 of through hole on the edge of optical element 112, housing 108 successively and the screwed hole 126 on the installation region 124 is fixed to optical element 112 on the radiator 102.
Assemble complete after, the outer surface butt of this housing 108 keeps the inner end 122a of fin 122, and is simultaneously, spaced apart with the inner end 116a of a plurality of fins 116.The first through hole 114c of the base portion 114 of the third through-hole 128 of heat-conducting substrate 104 and radiator 102 is all rounded because the cross section of the main body of housing 108 is square substantially, therefore the outer surface of housing 108 will inevitably and above-mentioned third through-hole 128 and the first through hole 114c between have the gap, this gap forms inner air through channel with the hollow space 120 that is positioned at the top and the second through hole 140 of being positioned on the optical element 112 of bottom respectively.Therefore, when light source 106 work, because the heating of light source 106 and power drives assembly 110, the temperature field of heat-conducting substrate 104 and housing 108 can be high than other zone.Like this, in conjunction with the generalized schematic of Fig. 5, the cold air of below will upwards flow into the interior heat absorption of air through channel of above-mentioned inside and also partly take away the heat of heat-conducting substrate 104 and housing 108 again from hollow space 120 outflows.By this, hollow space 120, the first through hole 114c, third through-hole 128 and the second through hole 140 form inner thermal convection current passage.Simultaneously, the circumferential hollow out grid that the cold air of below also can form jointly from sidewall 114b, a plurality of fin 116 and the flange 118 by base portion 114 upwards flow between per two fins and finally flows out from the top of fin, by this, each hollow out grid and two corresponding fins define the thermal convection current passage of an outside.
Be appreciated that, when heat-conducting substrate 104 and other than ring type, perhaps, namely be annular, but when the diameter of its third through-hole 128 was equal to or greater than the first through hole 114c of base portion 114 of radiator 102, hollow space 120, the first through hole 114c and the second through hole 140 just were enough to form inner thermal convection current passage.
As previously mentioned, housing 108 can not have locating support, this housing other end relative with lamp holder end that does not have locating support can not extend in the container cavity, namely, the relative other end that the lamp holder end of this housing is exposed radiator and lamp holder end then can be by for example being arranged in the hollow space with the mode of the inner end buckle that keeps fin, then, the power drives assembly of enclosure interior can be connected by electrical wiring on the light source of the heat-conducting substrate that is arranged in container cavity.
According to the disclosed light fixture 100 of the utility model, when light fixture 100 work, air can be taken away by the thermal convection current passage outside and inside the heat of light source 106 and 110 generations of power drives assembly, thereby can improve light efficiency.
The utility model is limited to the illustrative embodiments that presents never in any form in specification and accompanying drawing.All combinations of the embodiment that illustrates and describe (part) are interpreted as clearly to incorporate within this specification and be interpreted as clearly and fall in the scope of the present utility model.And in the scope of the present utility model of summarizing such as claims, a lot of distortion are possible.In addition, any reference marker in claims should be configured to limit scope of the present utility model.
Claims (10)
1. a light fixture (100) is characterized in that, described light fixture (100) comprising:
Radiator (102), it comprises base portion (114) and a plurality of fin (116), described base portion (114) has the first through hole (114c), described a plurality of fin (116) is formed on the outer surface of described base portion (114) and stretches out and is formed with inner end (116a) and outer end (116b), and the inner end (116a) of described a plurality of fins (116) defines hollow space (120);
Heat-conducting substrate (104) is fixed on the described base portion (114), is fixed with light source (106) on it;
Housing (108), along extending axially of described light fixture (100), it is used for holding the power drives assembly (110) that drives described light source (106), and described housing (108) is at least partially disposed in the described hollow space (120) and the one end is connected with lamp holder (134);
Optical element (112), it covers described light source (106) upward and is fixed on the base portion (114) of described radiator (102), and described optical element (112) upward or between described optical element (112) and the described base portion (114) is formed with the second through hole (140);
Wherein, when described light source (106) was worked, described hollow space (120), described the first through hole (114c) and described the second through hole (140) formed substantially along the first thermal convection current passage on the axial direction of described light fixture (100).
2. light fixture according to claim 1 (100), it is characterized in that, a plurality of fins (116) of described radiator (102) stretch out and are limited by circumferential flange (118) from the outer surface of described base portion (114), and described base portion (114), described circumferential flange (118) and described a plurality of fin (116) form a plurality of hollow out grids in circumferential edge; When described light source (106) was worked, described a plurality of hollow out grids and described a plurality of fin (116) defined the second thermal convection current passage jointly.
3. light fixture according to claim 1 and 2 (100), it is characterized in that, described heat-conducting substrate (104) also has third through-hole (128), when described light source (106) was worked, described the first thermal convection current passage was formed by described hollow space (120), described the first through hole (114c), third through-hole (128) and described the second through hole (140).
4. light fixture according to claim 1 and 2 (100), it is characterized in that, a plurality of fins (116) of described radiator (102) radially stretch out and are arranged in equably on the outer surface of described base portion (114) from the outer surface of described base portion (114).
5. light fixture according to claim 1 and 2 (100) is characterized in that, the inner end (116a) of described a plurality of fins (116) is spaced apart with the outer surface of described housing (108).
6. light fixture according to claim 5 (100) is characterized in that, described housing (108) is column substantially, and its cross section is kidney-shaped or ellipse.
7. light fixture according to claim 5 (100), it is characterized in that, at least two fins further extend to form to hollow space (120) respectively and keep fin (122) in a plurality of fins (116) of described radiator (102), and described maintenance fin (122) is used for keeping described housing (108).
8. light fixture according to claim 1 and 2 (100), it is characterized in that, described housing (108) is provided with locating support (136) with outwards protruding out on an end opposite with described lamp holder (134), described optical element (112) is fixed on the base portion (114) of described radiator (102) by described locating support (136).
9. light fixture according to claim 8 (100) is characterized in that, described optical element (112) comprises optical lens (112b) or reflector.
10. light fixture according to claim 1 and 2 (100) is characterized in that, described light source (106) is at least one light emitting diode (LED).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204835904U CN202902035U (en) | 2012-09-18 | 2012-09-18 | Lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204835904U CN202902035U (en) | 2012-09-18 | 2012-09-18 | Lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902035U true CN202902035U (en) | 2013-04-24 |
Family
ID=48122699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204835904U Expired - Lifetime CN202902035U (en) | 2012-09-18 | 2012-09-18 | Lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202902035U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672818A (en) * | 2013-12-27 | 2014-03-26 | 无锡佳龙换热器制造有限公司 | Die-casting radiating body for reflector lamp |
| CN104806902A (en) * | 2014-06-04 | 2015-07-29 | 聂金芳 | Novel dish-shaped LED (light-emitting diode) lamp |
| CN105066012A (en) * | 2015-09-14 | 2015-11-18 | 虞建峰 | High-power LED lamp assembly |
| CN109578928A (en) * | 2017-09-25 | 2019-04-05 | 百斯特普越野竞技赛车有限责任公司 | Light fixture |
| CN113841007A (en) * | 2019-05-15 | 2021-12-24 | 麦格纳外饰公司 | Vehicle lighting with thermal control |
-
2012
- 2012-09-18 CN CN2012204835904U patent/CN202902035U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672818A (en) * | 2013-12-27 | 2014-03-26 | 无锡佳龙换热器制造有限公司 | Die-casting radiating body for reflector lamp |
| CN103672818B (en) * | 2013-12-27 | 2016-08-24 | 无锡佳龙换热器股份有限公司 | A kind of die casting heat sink body for shot-light |
| CN104806902A (en) * | 2014-06-04 | 2015-07-29 | 聂金芳 | Novel dish-shaped LED (light-emitting diode) lamp |
| CN105066012A (en) * | 2015-09-14 | 2015-11-18 | 虞建峰 | High-power LED lamp assembly |
| CN109578928A (en) * | 2017-09-25 | 2019-04-05 | 百斯特普越野竞技赛车有限责任公司 | Light fixture |
| CN113841007A (en) * | 2019-05-15 | 2021-12-24 | 麦格纳外饰公司 | Vehicle lighting with thermal control |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |