CN104344379A - Radiator and lighting device comprising radiator - Google Patents
Radiator and lighting device comprising radiator Download PDFInfo
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- CN104344379A CN104344379A CN201310321171.XA CN201310321171A CN104344379A CN 104344379 A CN104344379 A CN 104344379A CN 201310321171 A CN201310321171 A CN 201310321171A CN 104344379 A CN104344379 A CN 104344379A
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- radiator structure
- heat abstractor
- fin
- heat
- dissipating object
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to a radiator (10) for a lighting device. The lighting device comprises at least one part to be cooled. The radiator is characterized by comprising a first heat radiation structure (1) and a second heat radiation structure (2) both in heat-conducting contact with one of the parts to be cooled, wherein when one of the parts to be cooled is within a first temperature range, the second heat radiation structure (2) is detachably mounted in the first heat radiation structure (1); when one of the parts to be cooled is within a second temperature range, the second heat radiation structure (2) is removed the first heat radiation structure (1). Besides, the invention also relates to the lighting device comprising the radiator.
Description
Technical field
The present invention relates to a kind of heat abstractor.In addition, the invention still further relates to a kind of lighting device with the heat abstractor of the above-mentioned type.
Background technology
In current illuminator, obtain increasing application using LED module as the illuminator of light source.LED module has very high requirement to heat radiation, because heat radiation directly affects performance and the life-span of LED module.For this reason, apply the heat abstractor of various material and shape in the prior art, the heat abstractor of such as aluminum, it has good heat dispersion, but its weight is relatively large.Therefore now the heat abstractor be made up of heat-conducting plastic is more and more used.In order to improve the heat dispersion of such heat abstractor, usually multiple equally distributed fin each other is circumferentially provided with at heat abstractor, and be furnished with the Metallic inserts of metallic plate or tubular on the contact surface of the printed circuit board (PCB) of heat abstractor and LED module, the heat-conducting plastic body that the Metallic inserts of this metallic plate or tubular has just been molded into heat abstractor usually in the process manufacturing heat abstractor has suffered.But the heat abstractor that this structure is fixed cannot realize dispelling the heat for the luminescence component of different capacity.Therefore when the power of luminescence component changes to some extent, such as, when the quantity of LED changes or brightness changes, need to change the heat abstractor matched and could realize effectively dispelling the heat, to avoid due to overheated and failure condition that is that cause.
Summary of the invention
Therefore, the object of the invention is to propose a kind of heat abstractor with the heat dispersion of improvement.This heat abstractor has good heat dispersion and highly versatile, and user can adjust the structure of this heat abstractor according to application conditions, to adapt to various application occasions.Also weight is relatively light for this heat abstractor simultaneously, and cheaper relative to traditional all-metal heat abstractor price.Another object of the present invention proposes a kind of lighting device with the heat abstractor of the above-mentioned type.
For comprising at least one, first object of the present invention treats that the heat abstractor of the lighting device of thermal dissipating object realizes thus by a kind of, namely heat abstractor comprises and the first radiator structure of the thermal conductive contact treated in thermal dissipating object and the second radiator structure, when in thermal dissipating object is in the first temperature range, the second radiator structure is arranged in the first radiator structure removedly; In time being in the second temperature range for one of thermal dissipating object, the second radiator structure removes from the first radiator structure.
Usually apply in the illumination system according to heat abstractor of the present invention, be especially applied in LED illumination System.Starting point of the present invention is the heat abstractor realizing a kind of " two radiator structure ", treats thermal dissipating object with what be matched with different temperatures.In actual applications, when treating that the temperature of thermal dissipating object is in the first higher temperature range, the first and second radiator structures of heat abstractor concur, to dispel the heat; When this temperature until thermal dissipating object is in the second temperature range lower relative to the first temperature range, heat abstractor only utilizes the first radiator structure just can dispel the heat in the immovable situation of maintenance exterior contour.Therefore heat abstractor according to the present invention has desirable versatility and user friendly.
Propose according to the present invention, described first radiator structure and described second radiator structure thermal conductive contact.Can guarantee that the first and second conductive structures can dispel the heat as a whole under the state be connected to each other, with the radiating effect of realizing ideal thus.
Propose according to the present invention, described second radiator structure is connected with described first radiator structure form fit ground.The volume according to heat abstractor of the present invention can be reduced thus, and guarantee that the thermal conductive surface between the first and second radiator structures maximizes.
Propose according to the present invention, described first radiator structure has middle body and peripheral wall portions, limits the first cavity for holding described second radiator structure between described middle body and peripheral wall portions.Can form the first cavity around middle body thus, this structure can guarantee that heat abstractor can realize the radiating effect of 360 ° in the circumferential.
Propose according to the present invention, described middle body comprises upper surface and interior peripheral wall sections, treats in thermal dissipating object described in the carrying of wherein said upper surface.Upper surface is not only used for fixing this as loading end at this and treats thermal dissipating object, but also as favourable the passing to peripheral wall portions or pass to the second radiator structure of heat that thermal conductivity region is produced simultaneously.
Propose according to the present invention, described upper surface and interior peripheral wall sections limit another the second cavity for treating described in holding in thermal dissipating object.Can dispel the heat for multiple parts of corresponding lighting device thus simultaneously.
Propose according to the present invention, described second radiator structure comprises the multiple fin and installing plate that quantity can adjust, and fin described in each links together by described installing plate removedly.Each fin is embedded on the side of installing plate respectively.By applying this structure, each backing can keep on a mounting board well, and the situation of dispelling the heat as required selects the quantity with the fin of installing plate socket connection.
Propose according to the present invention, the peripheral wall portions of described first radiator structure forms multiple pod apertures corresponding with described fin respectively, and described fin outwardly dispels the heat through described pod apertures.Such as can dispel the heat in the mode of convection current by means of the cold air from the external world thus.
Propose according to the present invention, described in the quantity of described fin depends on, treat in thermal dissipating object one actual temperature in described first temperature range.In order to reduce the deadweight of heat abstractor, the quantity of the fin that the radiating effect that therefore can realize according to actual temperature or needs reasonably reduces.
Propose according to the present invention, described fin has trapezoidal or triangular-shaped profile, and wherein said fin shape is contained in described first cavity ordinatedly.The fin of other shapes can certainly be selected according to the profile of the first radiator structure.Such as when the first radiator structure is cylindrical, fin preferably can have rectangular profile.
Propose according to the present invention, described peripheral wall portions has horn-like profile.The heat abstractor with this profile is particularly suitable for the lighting device that exterior contour is pyriform, and wherein the upper surface of middle body is preferably located in the side of the larger diameter end of peripheral wall portions.
Propose according to the present invention, described fin and/or described first radiator structure are made of metal.Fin and/or the first radiator structure are made up of the simple metal such as copper, aluminium usually, and the metal that can certainly have high heat conductivility by other is made.
Propose according to the present invention, described fin and/or described first radiator structure are stamping parts or spinning part.Also other techniques be applicable to can be selected to manufacture fin and/or described first radiator structure according to the different qualities of material.
Propose according to the present invention, described fin and/or described first radiator structure are made up of heat-conducting plastic.Heat Conduction Material can be the materials such as PP, PPS, PA or ABS.This material significantly reduces the weight of whole heat abstractor, and simplifies manufacturing process.
Propose according to the present invention, described fin and/or described first radiator structure are spray to cast part or moulded parts.Also other techniques be applicable to can be selected to manufacture fin and/or described first radiator structure according to the different qualities of material.
In category of the present invention, the material of fin and the first radiator structure can be different, and such as fin is made of metal, and the first radiator structure is made up of heat-conducting plastic.
Another object of the present invention is to propose a kind of lighting device, it comprises LED chip, driver, cell-shell, it is characterized in that, also comprises the heat abstractor of the above-mentioned type, and wherein said LED chip is as described for the treatment of in thermal dissipating object.
Propose according to the present invention, described driver as described treat in thermal dissipating object another be contained in described second cavity, and with described heat abstractor thermal conductive contact.Advantageously can dispel the heat to LED chip and driver by means of this heat abstractor thus simultaneously.
Propose according to the present invention, described lighting device is designed to modification lamp.This modification lamp such as has the exterior contour of pyriform.
Should be appreciated that, above generality describes and the following detailed description is all enumerated and illustrative, and object is to the invention provides further instruction to claimed.
Accompanying drawing explanation
Accompanying drawing forms the part of this description, understands the present invention further for helping.These accompanying drawings illustrate embodiments of the invention, and are used for principle of the present invention is described together with description.The identical label of parts identical in the accompanying drawings represents.Shown in figure:
Fig. 1 is the three-dimensional exploded view according to heat abstractor of the present invention;
Fig. 2 is the perspective view of the first embodiment according to heat abstractor of the present invention;
Fig. 3 is the perspective view of the second embodiment according to heat abstractor of the present invention;
Fig. 4 is the perspective view of the 3rd embodiment according to heat abstractor of the present invention;
Fig. 5 is the three-dimensional exploded view according to lighting device of the present invention.
Detailed description of the invention
In being discussed in more detail below, with reference to the accompanying drawing of the part of this description of formation, wherein, showing in an exemplary manner and can implement specific embodiments of the invention.About figure, such as " top ", " end ", " interior ", " outward " directional terms use with reference to the direction of described accompanying drawing.Because the assembly of the embodiment of the present invention can be placed on many different directions, thus direction term only for illustration of, and without any restriction the meaning.It should be understood that and can use other embodiment, and can structure or logical changes be carried out without departing from the scope of the invention.So, be described below in detail and should be understood to the restrictive meaning, and the present invention is defined by the appended claims.
It should be understood that the feature of different exemplary embodiment described herein can be bonded to each other if do not have other dated especially.
Fig. 1 is the three-dimensional exploded view according to heat abstractor of the present invention.As can be seen from Fig. 1, heat abstractor 10 comprises each other can the first radiator structure 1 and the second radiator structure 2 of thermal conductive contact, wherein the second radiator structure 2 is arranged in described first radiator structure 1 removedly, can form the heat abstractor 10 of one " two radiator structure " thus.The light emitting module that user such as can select power different according to practical situations, and advantageously only utilize heat abstractor 10 according to the present invention to dispel the heat to different light emitting modules.That is, the first radiator structure 1 and the second radiator structure 2 can be fitted together high to power, that quantity of heat production is large light emitting module and dispel the heat by user.In another case, the second radiator structure 2 can also be removed by user from the first radiator structure 1, only utilizes another group light emitting module that the first radiator structure 1 pair of power is low, quantity of heat production is little to dispel the heat.Therefore heat abstractor 10 according to the present invention has outstanding versatility and user friendly, and has the lighter advantage of deadweight.
Can identify by Fig. 1, the first radiator structure 1 being positioned at figure middle and lower part has the peripheral wall portions 1.2 of middle body 1.1 and concentric setting.Peripheral wall portions 1.2 designs in the present embodiment has flaring profile.Middle body 1.1 comprises upper surface 1.11 and is such as designed to columnar interior peripheral wall sections 1.12.Upper surface 1.11 is by larger diameter end one side closed of interior peripheral wall sections 1.12 inner peripheral portion 1.2 toward the outside.Upper surface 1.11 design there is smooth surface so that carrying treat thermal dissipating object, such as LED chip, and with its large-area as far as possible thermo-contact.Treat that the heat that thermal dissipating object produces can pass to peripheral wall portions 1.2 by upper surface 1.11, to dispel the heat.
In addition, the first cavity R1 for holding the second radiator structure 2 is also limited between middle body 1.1 and peripheral wall portions 1.2.Second radiator structure 2 removably can insert in the first radiator structure 1 along direction shown in figure, to form composite radiator, can treat thermal dissipating object as far as possible efficiently thus and dispel the heat.In order to improve the radiating effect of heat abstractor 10 further, in the peripheral wall portions 1.2 of the first radiator structure 1, also offer at least one especially, in the present embodiment for multiple pod apertures 1.3.Cold air thus from the external world can realize heat exchange with the hot-air in the first cavity R1 by pod apertures 1.3, improves the radiating effect of heat abstractor 10 thus.
Second radiator structure 2 comprises the multiple fin 2.1 and installing plate 2.2 that quantity can adjust, and each fin 2.1 such as links together with installing plate 2.2 in the circumferential removedly in the mode of grafting.There is shown two installing plates 2.2, also one or more installing plate can be selected to fix fin 2.1 according to the length of fin 2.1 and shape, and and then form annular radiation fin array.The shape of fin 2.1 can be selected according to the shape of the first radiator structure 1, particularly the first cavity R1.In the illustrated case, fin 2.1 has trapezoidal profile, can guarantee that the second radiator structure 2 can fit together with the first radiator structure 1 to form fit thus.Fin also can have triangular shaped, or other insert the profile in the first radiator structure 1 with being suitable for form fit.
In addition, when the first radiator structure 1 and the second radiator structure 2 being assembled into one and being overall, the position of each pod apertures 1.3 is preferably corresponding with fin 2.1, guarantees that the hot-air around fin 2.1 can flow to the outside of heat abstractor 10 by pod apertures 1.3 thus.Certainly, multiple pod apertures also can evenly or unevenly distribute with different intervals in circumferential direction.
The material of the first radiator structure 1 and the second radiator structure 2, particularly fin 2.1 can be selected according to application conditions.They can be made by metal or heat-conducting plastic, also can be made up of metal and heat-conducting plastic respectively.The technique of manufacture first radiator structure 1 and fin 2.1 can be selected equally according to properties of materials.In one embodiment, the first radiator structure and fin can be the stamping parts or spinning part be made up of metal material.In another embodiment, the first radiator structure and fin can be the spray to cast part or moulded parts be made up of heat-conducting plastic.Other manufacturing process be applicable to can be possible.
In addition, upper surface 1.11 and interior peripheral wall sections 1.12 also limit the second cavity R2, its for hold be different from that upper surface 1.11 carries treat thermal dissipating object another treat thermal dissipating object, such as the driver of driving LED chip.
In order to alleviate the deadweight according to heat abstractor 10 of the present invention, can select whether to combinationally use the first and second radiator structures 1 according to the temperature treating thermal dissipating object of carrying on upper surface 1.11,2, namely whether the second radiator structure 2 is inserted in the first radiator structure 1, or therefrom take out, and the quantity of fin 2.1 of formation second radiator structure 2 can be selected further.Treat that the temperature of thermal dissipating object is higher, the quantity of required fin 2.1 is more.
Fig. 2-4 is the perspective view of first, second, and third embodiment according to heat abstractor of the present invention respectively.Set forth below in conjunction with these three accompanying drawings.
Shown in figure 2 in situation, heat abstractor 10 is the entirety that the first and second radiator structures 1,2 form, and wherein the second radiator structure 2 has a fairly large number of fin 2.1.Treat that thermal dissipating object (be arranged on upper surface 1.11) dispel the heat for being in actual temperature in the first higher temperature range of numerical value according to the heat abstractor 10 of the first embodiment, this treats that the actual temperature of thermal dissipating object is such as 75.71 DEG C.
When shown in Figure 3, heat abstractor 10 is still the first and second radiator structures 1, the entirety of 2 compositions, wherein according to treating that the actual temperature be still in the first temperature range of thermal dissipating object (being arranged on upper surface 1.11) reduces the quantity of fin 2.1.Second radiator structure 2 has the quantity fin 2.1 less relative to the first embodiment.This treats that the actual temperature of thermal dissipating object is such as 73.05 DEG C.
In the embodiment shown in Fig. 2 and Fig. 3, the second radiator structure 2 preferably with the first radiator structure 1 form fit be connected.Between all parts can guaranteeing heat abstractor 10 thus, position is fixed, such as, avoid fin 2.1 to rock in the first cavity R1, can realize thermo-contact good between the first radiator structure 1 and the second radiator structure 2 thus.
When shown in Figure 4, the first radiator structure 1 that heat abstractor 10 only utilizes self just can be in actual temperature and treat that thermal dissipating object (being arranged on upper surface 1.11) dispels the heat in the second lower temperature range of numerical value.This treats that the actual temperature of thermal dissipating object is such as 71.83 DEG C.In the case, for the embodiment shown in Fig. 2 and Fig. 3, the deadweight of heat abstractor 10 is minimum.
Fig. 5 is the three-dimensional exploded view according to lighting device of the present invention.Lighting device 20 comprises LED chip 21, driver, cell-shell 22 and lamp socket 23, characterized by further comprising the heat abstractor 10 shown in Fig. 1, and wherein as one, LED chip 21 treats that thermal dissipating object is fixed on the upper surface of heat abstractor 10.Driver can be effective as in lighting device 20 another treat that thermal dissipating object is fixed in the second cavity R2 of heat abstractor 10.LED chip 21 and unshowned driver all with heat abstractor 10 thermal conductive contact.In addition, because lighting device 20 according to the present invention adopts LED as light source, and have the exterior contour of conventional light fixture, therefore lighting device 20 is modification lamp.Certainly, the exterior contour being different from conventional light fixture also can be had according to lighting device of the present invention.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Reference number
Claims (18)
1. the heat abstractor for lighting device (10), wherein said lighting device comprises at least one and treats thermal dissipating object, it is characterized in that, described heat abstractor (10) comprises and first radiator structure (1) of the described thermal conductive contact treated in thermal dissipating object and the second radiator structure (2), when described in thermal dissipating object one is in the first temperature range, described second radiator structure (2) is arranged in described first radiator structure (1) removedly; When described in thermal dissipating object one is in the second temperature range, described second radiator structure (2) removes from described first radiator structure (1).
2. heat abstractor according to claim 1 (10), is characterized in that, described first radiator structure (1) and described second radiator structure (2) thermal conductive contact.
3. heat abstractor according to claim 2 (10), is characterized in that, described second radiator structure (2) is connected with described first radiator structure (1) form fit ground.
4. the heat abstractor (10) according to any one of claim 1-3, it is characterized in that, described first radiator structure (1) has middle body (1.1) and peripheral wall portions (1.2), limits the first cavity (R1) for holding described second radiator structure (2) between described middle body (1.1) and peripheral wall portions (1.2).
5. heat abstractor according to claim 4 (10), is characterized in that, described middle body (1.1) comprises upper surface (1.11) and interior peripheral wall sections (1.12), treats in thermal dissipating object described in wherein said upper surface (1.11) carrying.
6. heat abstractor according to claim 5 (10), is characterized in that, described upper surface (1.11) and interior peripheral wall sections (1.12) limit another the second cavity (R2) for treating described in holding in thermal dissipating object.
7. heat abstractor according to claim 4 (10), it is characterized in that, described second radiator structure (2) comprises the multiple fin (2.1) and installing plate (2.2) that quantity can adjust, and fin described in each (2.1) links together by described installing plate (2.2) removedly.
8. heat abstractor according to claim 7 (10), it is characterized in that, the peripheral wall portions (1.2) of described first radiator structure (1) is upper forms multiple pod apertures (1.3) corresponding with described fin (2.1) respectively, and described fin (2.1) outwardly dispels the heat through described pod apertures (1.3).
9. heat abstractor according to claim 7 (10), is characterized in that, treats in thermal dissipating object one actual temperature in described first temperature range described in the quantity of described fin (2.1) depends on.
10. heat abstractor according to claim 7 (10), is characterized in that, described fin (2.1) has trapezoidal or triangular-shaped profile, is contained in wherein said fin (2.1) form fit in described first cavity (R1).
11. heat abstractors according to claim 4 (10), is characterized in that, described peripheral wall portions (1.2) has horn-like profile.
12. heat abstractors according to claim 4 (10), is characterized in that, described fin (2.1) and/or described first radiator structure (1) are made of metal.
13. heat abstractors according to claim 12 (10), is characterized in that, described fin (2.1) and/or described first radiator structure (1) are stamping parts or spinning part.
14. heat abstractors according to claim 4 (10), is characterized in that, described fin (2.1) and/or described first radiator structure (1) are made up of heat-conducting plastic.
15. heat abstractors according to claim 14 (10), is characterized in that, described fin (2.1) and/or described first radiator structure (1) are spray to cast part or moulded parts.
16. 1 kinds of lighting devices (20), comprise LED chip (21), driver, cell-shell (22), it is characterized in that, also comprise the heat abstractor (10) according to any one of claim 1-15, wherein said LED chip (21) as described in treat in thermal dissipating object one.
17. lighting devices according to claim 16 (20), is characterized in that, described driver as described treat in thermal dissipating object another be contained in described second cavity (R2), and with described heat abstractor (10) thermal conductive contact.
18. lighting devices according to claim 16 (20), is characterized in that, described lighting device (20) is designed to modification lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321171.XA CN104344379A (en) | 2013-07-26 | 2013-07-26 | Radiator and lighting device comprising radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321171.XA CN104344379A (en) | 2013-07-26 | 2013-07-26 | Radiator and lighting device comprising radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104344379A true CN104344379A (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310321171.XA Pending CN104344379A (en) | 2013-07-26 | 2013-07-26 | Radiator and lighting device comprising radiator |
Country Status (1)
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| CN (1) | CN104344379A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224869A (en) * | 2016-08-19 | 2016-12-14 | 中山市忆初照明电器有限公司 | A kind of heat abstractor of automobile lamp |
| CN107407476A (en) * | 2015-02-17 | 2017-11-28 | 伟创力有限责任公司 | Lighting unit |
| CN108006447A (en) * | 2017-11-06 | 2018-05-08 | 佛山市南海领上照明有限公司 | The PAR lamp of tunable optical and double-radiation function |
| CN108417445A (en) * | 2018-05-15 | 2018-08-17 | 苏州胜璟电磁科技有限公司 | A kind of heat dissipation type electromagnetic switch |
-
2013
- 2013-07-26 CN CN201310321171.XA patent/CN104344379A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107407476A (en) * | 2015-02-17 | 2017-11-28 | 伟创力有限责任公司 | Lighting unit |
| CN106224869A (en) * | 2016-08-19 | 2016-12-14 | 中山市忆初照明电器有限公司 | A kind of heat abstractor of automobile lamp |
| CN108006447A (en) * | 2017-11-06 | 2018-05-08 | 佛山市南海领上照明有限公司 | The PAR lamp of tunable optical and double-radiation function |
| CN108417445A (en) * | 2018-05-15 | 2018-08-17 | 苏州胜璟电磁科技有限公司 | A kind of heat dissipation type electromagnetic switch |
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Application publication date: 20150211 |