CN104141945A - Radiating structure and illuminating device with same - Google Patents
Radiating structure and illuminating device with same Download PDFInfo
- Publication number
- CN104141945A CN104141945A CN201310167137.1A CN201310167137A CN104141945A CN 104141945 A CN104141945 A CN 104141945A CN 201310167137 A CN201310167137 A CN 201310167137A CN 104141945 A CN104141945 A CN 104141945A
- Authority
- CN
- China
- Prior art keywords
- radiator
- designed
- lighting device
- radiator structure
- heat
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
- F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention relates to a radiating structure (100) used for an illuminating device. The radiating structure (100) comprises a first radiator (1) and a second radiator (2), wherein the first radiator (1) is made of metal through a first technology, the second radiator (2) is made of metal through a second technology, heat conducting capacity of the first radiator (1) is higher than that of the second radiator (2), and the first radiator (1) and the second radiator (2) are assembled together by means of heat conduction. The invention further relates to the illuminating device (200) with the radiating structure (100).
Description
Technical field
The present invention relates to a kind of radiator structure for lighting device.In addition, the invention still further relates to a kind of lighting device with the radiator structure of the above-mentioned type.
Background technology
Along with the continuous progress of technology, LED is widely used in lighting device, and it has advantages of that the life-span is long, luminous efficiency is high and environmental protection.But the luminous efficiency of LED lighting device and life-span are depended on the heat dispersion of lighting device to a great extent.Good heat dispersion contributes to improve luminous efficiency and life-extending.For this reason, custom-designed heat abstractor in LED lighting device, is conventionally equipped with.Traditional heat abstractor generally includes the radiator structure of making by die casting technique or the radiator structure of making by Sheet Metal Forming Technology.The radiator structure of making by die casting technique has larger volume capacity, so its heat dispersion is relatively good, but its cost is relatively high.And the cost of the radiator structure of making by Sheet Metal Forming Technology is relatively cheap, but its volume capacity is less, so its heat dispersion is relatively poor.
Summary of the invention
For solving the problem occurring in prior art, the present invention proposes a kind of radiator structure for lighting device.This radiator structure can provide good heat dispersion, and its cost is relatively cheap simultaneously.In addition, the invention allows for a kind of lighting device with the radiator structure of the above-mentioned type.
First object of the present invention realizes thus by a kind of radiator structure for lighting device, this radiator structure comprises: the first radiator and the second radiator, wherein, the first radiator utilizes the first technique to make by metal, and the second radiator utilizes the second technique to make by metal, wherein the capacity of heat transmission of the first radiator is higher than the capacity of heat transmission of the second radiator, and the first radiator and the second radiator each other heat be conductively assembled together.In design of the present invention, the first radiator and the second radiator have adopted different technique to manufacture, and the radiator obtaining on the one hand thus has the relatively high capacity of heat transmission, but cost is relatively high.And the capacity of heat transmission that obtains on the other hand radiator is relatively lower, but cost is relatively cheap.Therefore, the two radiator structure of combining acquisition is finding suitable compromise point aspect the capacity of heat transmission and cost, thereby has obtained a kind of heat-sinking capability radiator structure strong and with low cost.
According to the present invention, propose, the first radiator is designed to metal extrusion, and the second radiator is designed to metallic stamping pieces.The volume capacity of metal extrusion is relatively large, so its heat dispersion is relatively better.And the manufacturing cost of metallic stamping pieces is comparatively cheap.
Preferably, the second radiator partly surrounds the first radiator in the mode of interference fit.Mode by interference fit can make to firmly fix together between the first radiator and the second radiator, and without the frame for movement by auxiliary or utilize bonding or welding method.Meanwhile, the first radiator closely contacts each other with the second radiator, between it, can not have space, thereby has reduced the thermal resistance from the thermally conductive pathways of the first radiator to the second radiator.
Further preferably, the first radiator is designed to solid block, wherein, from the heat of the thermal source of lighting device, by the first radiator, conducts to the second radiator.The metal extrusion that mode by die casting obtains just has relatively large volume capacity conventionally, that is to say and be easy to form solid block, the capacity of heat transmission of this block is stronger, comes the first radiator row that the heat of self-heat power can be rapidly be designed to block by this to derive and goes.
According to the present invention, further propose, the second radiator is made by sheet metal.The second radiator can be manufactured by sheet metal inexpensively by Sheet Metal Forming Technology.Meanwhile, by sheet metal, can also stamp out multiple different shape, thus the large as far as possible contact area of acquisition and air, further to improve the heat dispersion of radiator structure.
Preferably, the first radiator comprises the supporting part contacting with the thermal source heat conduction of lighting device and the butting section contacting with the second radiator heat conduction.The heat of the light source of lighting device by supporting part, be directly delivered in the first radiator and and then by butting section, be directly passed to the second radiator, heat just can pass to first radiator with the higher capacity of heat transmission rapidly like this, thereby reaches the object of cooling rapidly.
Further preferably, the first radiator design is pillared, and wherein, the first radiator of column comprises two end faces and be formed on the side face between end face, and wherein, an end face is designed to supporting part, and side face is designed to butting section.Certain the first radiator also can be designed to other shape, for example prism etc.
According to the present invention, propose, the second radiator comprises for being installed to installation portion on lighting device and clamping part for contacting with butting section heat conduction.Butting section is wrapped up by clamping part at least in part, thereby guarantees the good communication of heat.
Advantageously, the second radiator comprises the base plate that is designed to installation portion and the central through hole that is formed on base plate, at the edge of through hole, be formed with the annular wall of extending away from base plate, annular wall is designed to clamping part and limits for holding the passage that holds of the first radiator.
Further advantageously, the geometric profile that holds passage is designed to make the first radiator to remain on and to hold in passage with the form of interference fit.In this design, the geometric profile that holds passage should be slightly smaller than the geometric profile of the first radiator, thereby the first radiator is encased in hold passage in time, the butting section of the first radiator can be with certain power against the inwall that holds passage, thereby forms so-called interference fit.Preferably, the first radiator has columniform profile, and the cross section that holds passage is for circular, and wherein, columniform side face is against the inwall that holds passage.
Advantageously, on base plate, be formed with at least one for the pilot hole of fastening bolt.Be bolted on the corresponding position that can make radiator structure be fixed on reliably lighting device.
According to the present invention, further propose, the first radiator and the second radiator are made of aluminum.Certainly, the first radiator and the second radiator also can be made by the metal material of other types, such as copper etc.
Another object of the present invention realizes by a kind of lighting device, this lighting device comprises housing, light source and is contained in the driver in housing, wherein, this lighting device also comprises the radiator structure of the above-mentioned type, wherein, light source heat conduction is arranged on the first radiator of radiator structure contiguously, and radiator structure utilizes the second radiator to be fixed on housing.
Preferably, light source comprises circuit board and be arranged at least one LED chip on circuit board, and wherein circuit board contacts with the first radiator heat conduction.
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.
Accompanying drawing explanation
Accompanying drawing forms the part of this description, for helping further to understand the present invention.These accompanying drawings illustrate embodiments of the invention, and are used for illustrating principle of the present invention together with description.Identical parts represent with identical label in the accompanying drawings.Shown in figure:
Fig. 1 is the schematic diagram according to radiator structure of the present invention;
Fig. 2 is the sectional view of the radiator structure in Fig. 1;
Fig. 3 is the decomposing schematic representation according to radiator structure of the present invention;
Fig. 4 is the sectional view according to lighting device of the present invention.
The specific embodiment
In being discussed in more detail below, with reference to the accompanying drawing that forms the part of this description, wherein, in the mode of illustration, showing and can implement specific embodiments of the invention.About figure, such as " on ", D score, " circumferentially " directional terms be with reference to the direction use 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 explanation, and without any restriction the meaning.It should be understood that and can use other embodiment, and can carry out structure or logical changes under the prerequisite that does not deviate from scope of the present invention.So, describes in detail and should not be understood to the restrictive meaning below, and the present invention is defined by the appended claims.
Fig. 1 shows according to the schematic diagram of radiator structure 100 of the present invention.As seen from the figure, radiator structure 100 according to the present invention comprises the first radiator 1 and the second radiator 2, wherein the first radiator 1 and the second radiator 2 each other heat be conductively assembled together.In the present embodiment, the second radiator 2 partly surrounds the first radiator 1 in the mode of interference fit, visible in figure, only the upper surface of the first radiator 1 and lower surface are (also not shown in figure, specifically referring to Fig. 2) be exposed to outside, most of region of the side face of the first radiator 1 is surrounded by the second radiator 2.Obtained thus a kind of dimeric radiator structure.
Fig. 2 shows according to the sectional view of radiator structure 100 of the present invention.As seen from the figure, the first radiator 1 is designed to solid block, wherein, from the heat of the thermal source of described lighting device, by the first radiator 1, conducts to the second radiator 2.The second radiator 2 is made by sheet metal.In the present embodiment, the first radiator 1 and the second radiator 2 can be made of aluminum, but in other embodiment, the two also can be made by other metals with high thermal conductivity, for example copper.In addition, in order to obtain such structure, in design of the present invention, propose, the first radiator 1 is designed to the metal extrusion of making by die casting technique, the metallic stamping pieces that the second radiator 2 is designed to make by Sheet Metal Forming Technology, makes the capacity of heat transmission of the first radiator 1 higher than the capacity of heat transmission of the second radiator 2 thus.
Fig. 3 shows according to the decomposing schematic representation of radiator structure 100 of the present invention.Above Fig. 3, show the second radiator 2 of being made by sheet metal, be designed to metallic stamping pieces, and below Fig. 3, show be designed to solid block, as the first radiator 1 of metal extrusion.
As can be seen from Fig. 3, the first radiator 1 design is pillared, wherein, the first radiator 1 of column comprises two end faces and is formed on the side face between described end face, wherein, an end face is designed to supporting part 11, and this supporting part 11 contacts with the thermal source heat conduction of lighting device, and side face is designed to butting section 12, this abutment face 12 contacts with the second radiator 2 heat conduction.
From Fig. 3, further, the second radiator 2 comprises for being installed to installation portion 21 on lighting device and clamping part 22 for contacting with butting section 12 heat conduction.In the present embodiment, the second radiator 2 comprises the base plate that is designed to installation portion 21 and the central through hole 23 that is formed on base plate, at the edge of through hole 23, be formed with the annular wall 24 of extending away from base plate, annular wall 24 is designed to clamping part 22 and limits hold passage 25 for what hold the first radiator 1.In design according to the present invention, propose, the geometric profile that holds passage 25 is designed to make the first radiator 1 to remain on and to hold in passage 25 with the form of interference fit.And in the present embodiment, the first radiator 1 has columniform profile, therefore hold the cross section of passage 25 also for circular, wherein, columniform side face is against the inwall that holds passage 25.In other and unshowned embodiment of the present invention, the first radiator 1 can be also prism, for example triangular prism or quadrangular etc., and the cross section that therefore holds passage 25 should be also correspondingly triangle or quadrangle etc.
At this, it is emphasized that, no matter which kind of profile the first radiator 1 is, the cross section of the first radiator 1 all should be greater than the cross section that holds passage 25 slightly, thereby the first radiator 1 is encased in hold passage 25 in time, the butting section 12 of the first radiator 1 can be with certain power against the inwall that holds passage 25, thereby forms so-called interference fit.
In addition, in Fig. 3, also can further see, on base plate, also be formed with at least one for the pilot hole 26 of fastening bolt.In the present embodiment, on base plate, be formed with the pilot hole 26 of three equidistant placement.Unshowned fastening bolt is screwed to the relevant position of lighting device through pilot hole 26, for example, on housing.
Fig. 4 shows according to the sectional view of lighting device 200 of the present invention.Lighting device 200 shown in Fig. 4 is a kind of LED remodeling lamps, for substituting traditional incandescent lamp.As seen from the figure, lighting device 200 comprises housing 3, light source 4 and is contained in the driver 5 in housing 3, wherein, lighting device 200 also comprises radiator structure 100, wherein, light source 4 heat conduction are arranged on the first radiator 1 of described radiator structure 100 contiguously, and radiator structure 100 utilizes the second radiator 2 to be fixed on housing 3.From figure, further, light source 4 comprises circuit board 41 and is arranged at least one LED chip 42 on described circuit board 41, and wherein circuit board 41 contacts with supporting part 12 heat conduction of the first radiator 1.After the second radiator 2 is fixed on housing 3, substantially sealed the upper opening of housing 3.At this, the second radiator 2 remains on the first radiator 1 on fixing position as the supporting construction of the first radiator 1.Heat from light source 4 is derived rapidly by the first radiator 1, and is dispersed in surrounding environment by the second radiator 2.
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 modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Reference number
1 first radiator
11 supporting parts
12 butting sections
2 second radiators
21 installation portions
22 clamping parts
23 through holes
24 annular wall
25 hold passage
26 pilot holes
3 housings
4 light sources
41 circuit boards
42 LED chips
5 drivers
100 radiator structures
200 lighting devices
Claims (15)
1. the radiator structure for lighting device (100), comprise: the first radiator (1) and the second radiator (2), it is characterized in that, described the first radiator (1) utilizes the first technique to make by metal, and described the second radiator (2) utilizes the second technique to make by metal, the capacity of heat transmission of wherein said the first radiator (1) is higher than the capacity of heat transmission of described the second radiator (2), and described the first radiator (1) and described the second radiator (2) each other heat be conductively assembled together.
2. radiator structure according to claim 1 (100), is characterized in that, described the first radiator (1) is designed to metal extrusion, and described the second radiator (2) is designed to metallic stamping pieces.
3. radiator structure according to claim 2 (100), is characterized in that, described the second radiator (2) partly surrounds described the first radiator (1) in the mode of interference fit.
4. according to the radiator structure described in any one in claims 1 to 3 (100), it is characterized in that, described the first radiator (1) is designed to solid block, wherein, the heat from the thermal source of described lighting device conducts to described the second radiator (2) by described the first radiator (1).
5. radiator structure according to claim 2 (100), is characterized in that, described the second radiator (2) is made by sheet metal.
6. radiator structure according to claim 4 (100), it is characterized in that, described the first radiator (1) comprises the supporting part (11) contacting with the thermal source heat conduction of described lighting device and the butting section (12) contacting with described the second radiator (2) heat conduction.
7. radiator structure according to claim 6 (100), it is characterized in that, described the first radiator (1) designs pillared, wherein, described the first radiator (1) comprises two end faces and is formed on the side face between described end face, wherein, a described end face is designed to described supporting part (11), and described side face is designed to described butting section (12).
8. radiator structure according to claim 6 (100), it is characterized in that, it is characterized in that, described the second radiator (2) comprises for being installed to installation portion (21) on described lighting device and clamping part (22) for contacting with described butting section (12) heat conduction.
9. radiator structure according to claim 8 (100), it is characterized in that, described the second radiator (2) comprises the base plate that is designed to described installation portion (21) and the central through hole (23) that is formed on described base plate, at the edge of described through hole (23), be formed with the annular wall (24) of extending away from described base plate, described annular wall (24) is designed to described clamping part (22) and limits hold passage (25) for what hold described the first radiator (1).
10. radiator structure according to claim 9 (100), is characterized in that, described in hold passage (25) geometric profile be designed to make described the first radiator (1) to hold in passage (25) described in can remaining on the form of interference fit.
11. radiator structures according to claim 10 (100), it is characterized in that, described the first radiator (1) has columniform profile, and described in hold passage (25) cross section for circular, wherein, described columniform side face is against the described inwall that holds passage (25).
12. radiator structures according to claim 11 (100), is characterized in that, are formed with at least one pilot hole for fastening bolt (26) on described base plate.
13. radiator structures according to claim 1 and 2 (100), is characterized in that, described the first radiator (1) and described the second radiator (2) are made of aluminum.
14. 1 kinds of lighting devices (200), comprise housing (3), light source (4) and be contained in the driver (5) in described housing (3), it is characterized in that, described lighting device (200) also comprises according to the radiator structure described in any one in claim 1 to 13 (100), wherein, described light source (4) heat conduction is arranged on first radiator (1) of described radiator structure (100) contiguously, and described radiator structure (100) utilizes the second radiator (2) to be fixed on described housing (3).
15. lighting devices according to claim 14 (200), it is characterized in that, described light source (4) comprises circuit board (41) and is arranged at least one LED chip (42) on described circuit board (41), and wherein said circuit board (41) contacts with described the first radiator (1) heat conduction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167137.1A CN104141945A (en) | 2013-05-08 | 2013-05-08 | Radiating structure and illuminating device with same |
| PCT/EP2014/058342 WO2014180670A1 (en) | 2013-05-08 | 2014-04-24 | Heat dissipating structure and illuminating device having said head dissipating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167137.1A CN104141945A (en) | 2013-05-08 | 2013-05-08 | Radiating structure and illuminating device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104141945A true CN104141945A (en) | 2014-11-12 |
Family
ID=50630783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310167137.1A Pending CN104141945A (en) | 2013-05-08 | 2013-05-08 | Radiating structure and illuminating device with same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104141945A (en) |
| WO (1) | WO2014180670A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007008258U1 (en) * | 2007-04-30 | 2007-10-31 | Lumitech Produktion Und Entwicklung Gmbh | LED bulbs |
| CN101338886A (en) * | 2007-07-04 | 2009-01-07 | 胡凯 | Semiconductor LED lamp housing |
| JP4612120B2 (en) * | 2009-02-04 | 2011-01-12 | パナソニック株式会社 | Light bulb shaped lamp and lighting device |
| US20110241058A1 (en) * | 2010-03-30 | 2011-10-06 | Chien Yu-Chen | Led heat dissipating module |
| US20120013237A1 (en) * | 2010-07-14 | 2012-01-19 | Wen-Jen Lee | Heat-dissipating structure of led bulb |
| JP6152647B2 (en) * | 2012-01-26 | 2017-06-28 | Ａｐｓジャパン株式会社 | heatsink |
-
2013
- 2013-05-08 CN CN201310167137.1A patent/CN104141945A/en active Pending
-
2014
- 2014-04-24 WO PCT/EP2014/058342 patent/WO2014180670A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014180670A1 (en) | 2014-11-13 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |