CN102200258A - Radiating shell of light emitting diode light fixture - Google Patents
Radiating shell of light emitting diode light fixture Download PDFInfo
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- CN102200258A CN102200258A CN2010101477880A CN201010147788A CN102200258A CN 102200258 A CN102200258 A CN 102200258A CN 2010101477880 A CN2010101477880 A CN 2010101477880A CN 201010147788 A CN201010147788 A CN 201010147788A CN 102200258 A CN102200258 A CN 102200258A
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Abstract
The invention discloses a radiating shell of a light emitting diode light fixture. Through metal mold integrated molding, a containing groove channel penetrates through the inner part of the radiating shell axially, and is used for containing a power supply circuit board; the surface of the outer side of the radiating shell is provided with a plurality of radiating fins axially; a plurality of parallel groove holes penetrate through the inner part of the radiating shell; the axis direction of each parallel groove hole is parallel with the axis direction of the containing groove channel; the radial length of one end of each radiating fin adjacent to the radiating shell is less than that of the other end of the radiating shell adjacent to the other end of the radiating shell; one end of the radiating shell is used for installing an electrode cover; the other end of the radiating shell is used for installing a luminous element; an included angle is formed between two corresponding side surfaces of the radiating fins to avoid to form a dead angle of air convection among the radiating fins, the air convection efficiency among the radiating fins is improved, the temperature of the luminous element is reduced effectively, the luminous quality, the luminous efficiency are improved and the service life of the luminous element is prolonged.
Description
Technical field
The present invention refers to especially that about a kind of light fixture a kind of high heat energy that light-emitting component is produced conducts by heat and the mode of thermal convection current, carries out heat exchange with this radiating shell cold air on every side, significantly promotes the radiating shell of the led lamp of radiating efficiency.
Background technology
In recent years; progress along with science and technology; the demand of the energy also improves thereupon; the past people are for night or room lighting; usually can adopt incandescent lamp bulb; yet; because service life very short (average life span of incandescent lamp bulb only is about 1,000 hour) of incandescent lamp bulb, and existing incandescent lamp bulb is with set within it vacuum or be full of in the space of inert gas of a tungsten filament; and electric current is passed through this tungsten filament; make this tungsten filament be heated to white heat, and then emit beam, therefore; incandescent lamp bulb only can be converted into luminous energy with 10 of received electric energy; but will be converted into useless heat energy, and be lost in the air, cause the meaningless consume of electric energy up to 90 percent electric energy; not only waste energy in a large number, more natural environment is caused white elephant.
Be the shortcoming (as: service life is short, photoelectric conversion rate is low) that solves above-mentioned incandescent lamp bulb, fluorescent lamp bulb (fluorescent lamp and stabilizer being combined into the lighting apparatus of an integral body) just arises at the historic moment thereupon; Under the equal illumination condition, be six times of incandescent lamp bulb the service life of fluorescent lamp bulb, be about 6,000 hour), and the electric energy that fluorescent lamp bulb consumed is low (comparing with incandescent lamp bulb than incandescent lamp bulb really, the power consumption of fluorescent lamp bulb be about incandescent lamp bulb 1/5th), therefore before the more than ten years, existing many users use the fluorescent lamp bulb of comparatively power saving instead, and because the size and the incandescent lamp bulb of fluorescent lamp bulb are close, the interface of its lamp socket (being electrode cap or lamp holder) is also identical with incandescent lamp bulb, therefore user's lamp changing base interface more, can directly replace incandescent lamp bulb, and make fluorescent lamp bulb replace incandescent lamp bulb gradually, become the main flow of general illumination light fixture with fluorescent lamp bulb; Yet, owing to be full of harmful mercury vapor and phosphorus matter fluorescent paint in the fluorescent lamp, and the service life of fluorescent lamp bulb is still relatively short by (only 6,000 hour), under general a large amount of situations about using, produce a large amount of discarded fluorescent lamps at short notice easily, in case suffer to throw aside carelessly, wherein You Hai mercury and fluorescent material will pollute natural environment, and ecology is caused great harm.
From the above, As time goes on, illumination science and technology is advanced by leaps and bounds, and except above-mentioned incandescent lamp bulb and fluorescent lamp bulb, existing recently many light fixture manufacturer begins to produce the light emitting diode bulb that has environmental protection and energy-conservation demand concurrently; Because the service life of light emitting diode bulb is up to 40 times of incandescent lamp bulb, be about 40,000 hour, and under the equal illumination condition, the electric energy that light emitting diode bulb consumed (is compared with incandescent lamp bulb far beyond incandescent lamp bulb and fluorescent lamp bulb much less, the power consumption of light emitting diode bulb is about 1/10th of incandescent lamp bulb, and compare with fluorescent lamp bulb, the power consumption of light emitting diode bulb is about half of fluorescent lamp bulb), and noxious material such as not mercurous in the light emitting diode bulb, the light that it projected can not produce heat or radiation (in the light source light spectrum that light emitting diode produced yet, do not contain ultraviolet ray or infrared ray), the manufacturing technology that adds light emitting diode is ripe gradually, its cost price also constantly descends, make light emitting diode bulb replace fluorescent lamp bulb and incandescent lamp bulb gradually, become the main flow of current lighting.
In sum, though light emitting diode bulb has become the main flow of current lighting, but because light emitting diode can produce a large amount of heats in luminous process, and the light emitting diode that brightness is high more, the heat that it the produced height of also can healing, and be equiped with the light emitting diode bulb of light emitting diode, in case the heat that it produced can't scatter and disappear smoothly, to cause self temperature high, under the behaviour in service of long-time continuous high temperature, to produce serious material ageing and light decay phenomenon, and seriously shorten its service life; Therefore, be to improve the radiating effect of light emitting diode bulb, to prolong its service life, industry then is developed the radiating shell of various light emitting diode bulbs gradually, cooperates shown in Figure 1ly, and the radiating shell at having light emitting diode bulb now explains as follows:
See also Fig. 1, it is a radiating shell 10, this radiating shell 10 is an aluminum alloy material, and make through metal mold is one-body molded, run through in it and be provided with a containing hole 101, in order to a ccontaining power supply circuit board 11 and on lead 111, these radiating shell 10 outer extensions are provided with a plurality of radiating fins 102, adjacent radiating fin 102 each intervals, and two corresponding sides of each radiating fin 102 are parallel to each other, and vertically be connected the surface of this radiating shell 10 with an angle of 90 degrees, one end of this radiating shell 10 is for an electrode cap 12 is installed, its other end is then for an illuminating module 13 is installed, this illuminating module 13 comprises an at least one light emitting diode 131 and a pedestal 132, one side of this pedestal 132 is provided with described light emitting diode 131, its another side is mounted the other end end face that is pasted to this radiating shell 10, so, this electrode cap 12, this power supply circuit board 11, this lead 111 and this illuminating module 13 are assembled on this radiating shell 10, light emitting diode 131 on this illuminating module 13 is electrically connected with this power supply circuit board 11 by this lead 111, to obtain external power by this power supply circuit board 11 and this electrode cap 12, and with electric power transfer to described light emitting diode 131, make described light emitting diode 131 can produce light, so that the heat energy that described light emitting diode 131 is produced can be via the another side of this pedestal 132, conducted to this radiating shell 10, and by this radiating shell 10 and on radiating fin 102, above-mentioned heat energy is distributed in the ambient air, reduced the operating temperature of described light emitting diode 131, thereby made described light emitting diode 131 launch desirable coloured light.
Yet, because two corresponding sides of each radiating fin 102 are parallel to each other, and each radiating fin 102 vertically is connected the surface of this radiating shell 10 with an angle of 90 degrees, cause 102 of adjacent radiating fins to form cross-ventilated dead angle, make that the air at 102 dead angles of described radiating fin can be because of accepting heat, and its temperature is risen gradually, and accumulate in around the described radiating fin 102, cause the temperature difference between described radiating fin 102 and surrounding air to be dwindled gradually, make that the cross-ventilation efficient of 102 of described radiating fins is low, and can't effectively distribute the heat energy that described light emitting diode 131 is produced, and then cause the operating temperature of described light emitting diode 131 high, make the illuminating module 13 that is assembled on this radiating shell 10 be easy to generate serious material ageing and light decay phenomenon equally, and seriously shorten its service life.
Therefore, how to improve the radiating shell of existing light emitting diode bulb, avoiding forming cross-ventilated dead angle between radiating fin adjacent on the radiating shell, and then promote the cross-ventilation efficient between each radiating fin, promptly become the important topic that those skilled in the art inquire into.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of radiating shell of led lamp, makes its radiating efficiency that can effectively promote radiating shell, thereby prolongs the service life of led lamp.
Technical solution of the present invention is: a kind of radiating shell of led lamp, wherein, this radiating shell is one-body molded by metal mold, run through vertically in this radiating shell and be provided with a ccontaining conduit, its outer surface is provided with a plurality of radiating fins vertically, each radiating fin extends along the radial outward of this radiating shell, run through in each radiating fin and be provided with a plurality of parallel slotted holes, the axis direction of each parallel slotted hole is parallel to the axis direction of this ccontaining conduit, and the position of corresponding each radiating fin of the inner surface of this radiating shell is provided with a groove respectively vertically.
The radiating shell of a kind of led lamp of the present invention, one-body molded via metal mold, run through vertically in this radiating shell and be provided with a ccontaining conduit, power supply circuit board and lead in order to a ccontaining led lamp, this radiating shell outer surface is provided with a plurality of radiating fins vertically, each radiating fin extends along the radial outward of this radiating shell, and the radical length of an end of contiguous this radiating shell of each described radiating fin is less than the radical length of the other end of contiguous this radiating shell, one end of this radiating shell is for an electrode cap is installed, its other end is then for the light-emitting component (as: being provided with the pedestal of light emitting diode) that this led lamp is installed, two corresponding sides of each radiating fin form an angle, to avoid forming cross-ventilated dead angle between adjacent described radiating fin, and then significantly promote cross-ventilation efficient between described radiating fin, run through in each radiating fin and be provided with a plurality of parallel slotted holes, the axis direction of each parallel slotted hole is parallel to the axis direction of this ccontaining conduit, described parallel slotted hole decapacitation significantly increases outside the area of dissipation of each radiating fin, can also make the interior heat energy of each radiating fin via described parallel slotted hole, the cold air outer with each radiating fin carries out heat exchange; Thereby, be assembled to the other end of this radiating shell when this light-emitting component, and be unlocked when sending light, the high heat energy that this light-emitting component produced is respectively by radiating fin and parallel slotted hole on this radiating shell, simultaneously carry out heat exchange with heat conduction and the mode of thermal convection current and the cold air of this radiating shell outside, to utilize cross-ventilation efficient preferable between radiating fin, more promptly be distributed to the high heat energy in radiating fin surface and the parallel slotted hole in the ambient air, make the temperature of this light-emitting component itself can be reduced to best operating temperature more quickly, and then effectively promote the luminous mass of this light-emitting component, luminous efficiency and service life.
The radiating shell of a kind of led lamp of the present invention, be provided with a groove at the inner surface of each described radiating shell respectively vertically corresponding to the position of each described radiating fin, the radial depth of one end of contiguous this radiating shell of each described groove is less than the radial depth of the other end of contiguous this radiating shell, and this groove is connected with described parallel slotted hole; Thereby, can not only significantly increase the internal heat dissipating area of each described radiating fin, make the heat energy that light emitting diode produced on the other end of this radiating shell, a large amount of area of dissipations that can provide by described groove, conducted to the outer surface of this radiating fin apace, reached thermal conduction effect faster; And, because each groove forms bigger thermal convection current space in this radiating shell, and because of each groove is interconnected with this ccontaining conduit and described parallel slotted hole respectively again, so the outer cold air of each radiating fin can enter in each groove and this ccontaining conduit via described parallel slotted hole easily, and the hot-air in this groove and this ccontaining conduit also can successfully be taken out of to this radiating shell via parallel slotted hole, to realize thermal convection current effect faster.
Description of drawings
Fig. 1 is the isometric exploded view of existing light emitting diode bulb;
Fig. 2 is the radiating shell of first preferred embodiment of the present invention and other interelement three-dimensional exploded view of light emitting diode bulb;
Fig. 3 is the upward view of the radiating shell of first preferred embodiment of the present invention;
Fig. 4 is the enlarged drawing of the radiating shell of first preferred embodiment of the present invention.
The main element label declaration:
The present invention:
20: radiating shell 21: ccontaining conduit 22: led lamp
23: power supply circuit board 24: radiating fin 25: electrode cap
26: 28: the second bolt apertures of 27: the first bolt apertures of light-emitting component
29: screw 231: lead 241: parallel slotted hole
242,243: side 261: light emitting diode 262: pedestal
201: groove
Prior art:
10: radiating shell 101: containing hole 11: power supply circuit board
111: lead 102: radiating fin 12: electrode cap
13: illuminating module 131: light emitting diode 132: pedestal
The specific embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
In general, because light emitting diode can produce a large amount of heats in luminous process, therefore be equiped with the led lamp of light emitting diode, usually can the heat that light emitting diode produced be distributed in the surrounding environment smoothly by radiating shell, the method for making of radiating shell is divided into two kinds of metal extrusion and metal mold methods usually; The radiating shell that the metal extrusion is made, be to push a simple metal plate body (as: aluminium sheet) back and one-body molded via a metal extrusion press, yet, through the radiating shell that the metal extrusion is made, its surface is comparatively coarse, therefore must carry out secondary operations, and make procedure in complicated, cause the producer to expend more time and manpower, therefore increase the cost of manufacture of radiating shell, and then the infringement producer's the market competitiveness; For solving the above-mentioned variety of problems that the metal extrusion is produced, the metal mold method is just arisen at the historic moment, the radiating shell that the metal mold method is made, be by after metal alloy (as: aluminium alloy) fusion, make via metal mold is one-body molded, because the unit price of metal alloy compositions is cheaper than simple metal plate body, and the made radiating shell of utilization metal mold method, its surface is comparatively careful, therefore need not carry out secondary operations, so via the made radiating shell of metal mold method, its cost and the cost radiating shell made far beyond the metal extrusion is cheap, help the producer and make the production radiating shell in a large number, so the metal mold method becomes the main flow in the method for making of radiating shell gradually.
The present invention is a kind of radiating shell of led lamp, see also Fig. 2, in first preferred embodiment of the present invention, this radiating shell 20 is that aluminum alloy material is (in other embodiment of the present invention, this radiating shell 20 also can be made of copper or other metal material), and make via metal mold is one-body molded, run through vertically in this radiating shell 20 and be provided with a ccontaining conduit 21, in order to a ccontaining power supply circuit board 23 and on lead 231, the outer surface of this radiating shell 20 is provided with a plurality of radiating fins 24 vertically, each radiating fin 24 extends along the radial outward of this radiating shell 20, and the radical length of an end of each radiating fin 24 contiguous these radiating shell 20 is less than the radical length of the other end of contiguous this radiating shell 20, one end of this radiating shell 20 is for an electrode cap 25 is installed, its other end then for the light-emitting component 26 that this led lamp 22 is installed (in the present embodiment, this light-emitting component 26 comprises an at least one light emitting diode 261 and a pedestal 262, one side of this pedestal 262 is provided with described light emitting diode 261, its another side is mounted the other end end face that is pasted to this radiating shell 20, and be respectively equipped with a plurality of first bolt apertures 27 on the other end end face of this radiating shell 20, and the position corresponding to described first bolt apertures 27 on this pedestal 262 is respectively equipped with a plurality of second bolt apertures 28, be spirally connected for a plurality of screws 29 can run through this second bolt apertures 28 respectively and secure in this first bolt apertures 27, these pedestal 262 lockings are positioned to the other end end face of this radiating shell 20), respectively the width of the base portion of this radiating fin 24 (intersection that refers to respectively this radiating fin 24 and these radiating shell 20 lateral walls) is greater than the width away from an end of this base portion, make the respectively two-phase corresponding side surface 242 of this radiating fin 24, (this angle is the best with 10～30 degree to 243 formation one angles, see also Fig. 3, upward view for present embodiment, in the present embodiment, this angle is 16 degree), and then make that the corresponding edge of base portion of adjacent radiating fin 24 is close mutually, and make two corresponding side surface 242 of adjacent radiating fin 24,243 form another angle and (see also Fig. 3, in the present embodiment, this another angle is 34 degree), to avoid 24 adjacent of radiating fins to form cross-ventilated dead angle, and then significantly promote cross-ventilation efficient (because the radiating shell of existing light emitting diode bulb of 24 of radiating fins, two of each radiating fin corresponding sides are parallel to each other on it, and each radiating fin is the surface that vertically is connected this radiating shell with an angle of 90 degrees, cause forming between adjacent radiating fin cross-ventilated dead angle, make that the hot-air at dead angle is difficult for carrying out convection current with cool ambient air between radiating fin, and accumulate in around the radiating fin, cause the cross-ventilation efficient not high).
From the above, please consult Fig. 2 and Fig. 3 again, in the present embodiment, for increasing area of dissipation, run through in each radiating fin 24 and be provided with a plurality of parallel slotted holes 241, the axis direction of each parallel slotted hole 241 is parallel to the axis direction of this ccontaining conduit 21, described parallel slotted hole 241 can significantly increase the area of dissipation of each radiating fin 24, a large amount of area of dissipations that the heat energy that light emitting diode 261 on the other end of this radiating shell 20 is produced provides by described parallel slotted hole 241, and conducted to the outer surface of this radiating fin 24 apace, to carry out heat exchange, reach thermal conduction effect faster with each radiating fin 24 cold air outward; In addition, described parallel slotted hole 241 also can form the thermal convection current space in this radiating fin 24, and because described parallel slotted hole 241 is interconnected with this ccontaining conduit 21, therefore each radiating fin 24 outer cold air can enter in this ccontaining conduit 21 via described parallel slotted hole 241 easily, and the hot-air in this ccontaining conduit 21 can successfully be taken out of to this radiating shell 20, via described parallel slotted hole 241 to reach thermal convection current effect faster.
So, when this electrode cap 25, this power supply circuit board 23 and this lead 231 are assembled to correspondence position on this radiating shell 20, and this light-emitting component 26 is assembled to the other end of this radiating shell 20, light emitting diode 261 on this light-emitting component 26 is electrically connected with this power supply circuit board 23 by this lead 231, obtaining external power by this power supply circuit board 23 and this electrode cap 25, and with electric power transfer to described light emitting diode 261; When this light-emitting component 26 is unlocked, when making light emitting diode 261 on it send light, the heat energy that described light emitting diode 261 is produced can be conducted to this radiating shell 20 via the another side of this pedestal 262, and respectively by radiating fin 24 and parallel slotted hole 241 on this radiating shell 20, while is in the mode of heat conduction and thermal convection current, carry out heat exchange with the cold air of these radiating shell 20 outsides, to utilize 24 preferable cross-ventilation efficient of described radiating fin, more promptly be distributed to the high heat energy in radiating fin 24 surfaces and the parallel slotted hole 241 in the ambient air, so that these light-emitting component 26 temperature own can be reduced to best operating temperature more quickly, and then effectively promote the luminous mass of this light-emitting component 26, luminous efficiency and service life.
From the above, see also Fig. 2 and shown in Figure 4, the inner surface of this radiating shell 20 is provided with a groove 201 respectively vertically corresponding to the position of each radiating fin 24, the radial depth of one end of each groove 201 contiguous these radiating shell 20 is less than the radial depth of the other end of contiguous this radiating shell 20, and this groove 201 is connected with described parallel slotted hole 241; Groove 201 all belongs to one-body molded mold with parallel slotted hole 241 and forms, and described parallel slotted hole 241 is to run through vertically downward on each radiating fin 24 at groove 201 places, and vertical (depth direction) of each parallel slotted hole 241 is parallel to each other.So, can not only significantly increase the internal heat dissipating area of each radiating fin 24, the heat energy that makes light emitting diode 261 on the other end of this radiating shell 20 be produced can be conducted to the outer surface of this radiating fin 24 apace by a large amount of area of dissipations that groove 201 provides, to carry out heat exchange, reach thermal conduction effect faster with each radiating fin 24 cold air outward; In addition, because each described groove 201 also forms bigger thermal convection current space in this radiating shell 20, and be interconnected with this ccontaining conduit 21 and each parallel slotted hole 241 respectively based on each groove 201, so each radiating fin 24 outer cold air can enter in each groove 201 and this ccontaining conduit 21 via described parallel slotted hole 241 easily, and the hot-air in this groove 201 and this ccontaining conduit 21 can successfully be taken out of to this radiating shell 20 via parallel slotted hole 241, to realize thermal convection current effect faster, therefore, described groove 201 and parallel slotted hole 241 not only can significantly increase the heat transfer area of each radiating fin 24, also can make the hot-air in each groove 201 carry out thermal convection current faster, significantly promote the cross-ventilation efficient of 24 of radiating fins via the cold air outside parallel slotted hole 241 and each radiating fin 24.
Employed vocabulary and description in the previous embodiment; such as the structure of this radiating fin and the narrations such as juncture between this light-emitting component and this radiating shell; it only is preferred embodiment of the present invention; should not be considered as limitation of the present invention; anyly be familiar with those skilled in the relevant art of the present invention; according to the disclosed technology contents of the present invention; the variation that can expect easily or the modification of structure; or the equivalence variation that utilizes other structure or device to be realized, all should belong to and not break away from protection category of the present invention.
Claims (6)
1. the radiating shell of a led lamp, it is characterized in that, this radiating shell is one-body molded by metal mold, run through vertically in this radiating shell and be provided with a ccontaining conduit, its outer surface is provided with a plurality of radiating fins vertically, each radiating fin extends along the radial outward of this radiating shell, run through in each radiating fin and be provided with a plurality of parallel slotted holes, the axis direction of each parallel slotted hole is parallel to the axis direction of this ccontaining conduit, and the position of corresponding each radiating fin of the inner surface of this radiating shell is provided with a groove respectively vertically.
2. the radiating shell of led lamp as claimed in claim 1 is characterized in that, two corresponding sides of each radiating fin are formed with an angle.
3. the radiating shell of led lamp as claimed in claim 2 is characterized in that, the radical length of an end of contiguous this radiating shell of each radiating fin is less than the radical length of the other end of contiguous this radiating shell.
4. the radiating shell of led lamp as claimed in claim 3, it is characterized in that, the radial depth of one end of contiguous this radiating shell of each groove is less than the radial depth of the other end of contiguous this radiating shell, and each groove is connected with corresponding parallel slotted hole.
5. the radiating shell of led lamp as claimed in claim 4 is characterized in that, the other end end face of this radiating shell is provided with at least one bolt apertures.
6. as the radiating shell of each described led lamp of claim 2 to 5, it is characterized in that the angle between the two-phase corresponding side surface of each radiating fin is 10～30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101477880A CN102200258A (en) | 2010-03-25 | 2010-03-25 | Radiating shell of light emitting diode light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101477880A CN102200258A (en) | 2010-03-25 | 2010-03-25 | Radiating shell of light emitting diode light fixture |
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| CN102200258A true CN102200258A (en) | 2011-09-28 |
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| CN2010101477880A Pending CN102200258A (en) | 2010-03-25 | 2010-03-25 | Radiating shell of light emitting diode light fixture |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174983A (en) * | 2011-12-20 | 2013-06-26 | 许富昌 | Semiconductor light source and manufacturing method thereof |
| CN103542378A (en) * | 2012-07-17 | 2014-01-29 | 东莞市长安上名模具科技有限公司 | LED lamp cup and forming mold thereof |
| CN103542379A (en) * | 2012-07-17 | 2014-01-29 | 东莞市长安上名模具科技有限公司 | Improved LED lamp cup and forming die thereof |
| CN104321589A (en) * | 2012-05-23 | 2015-01-28 | 普司科Led股份有限公司 | Optical semiconductor illumination device |
| WO2015027511A1 (en) * | 2013-09-02 | 2015-03-05 | Chen Hui Chiang | Lamp base with heat dissipation structure and lamp thereof, and illumination device |
-
2010
- 2010-03-25 CN CN2010101477880A patent/CN102200258A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174983A (en) * | 2011-12-20 | 2013-06-26 | 许富昌 | Semiconductor light source and manufacturing method thereof |
| CN104321589A (en) * | 2012-05-23 | 2015-01-28 | 普司科Led股份有限公司 | Optical semiconductor illumination device |
| CN103542378A (en) * | 2012-07-17 | 2014-01-29 | 东莞市长安上名模具科技有限公司 | LED lamp cup and forming mold thereof |
| CN103542379A (en) * | 2012-07-17 | 2014-01-29 | 东莞市长安上名模具科技有限公司 | Improved LED lamp cup and forming die thereof |
| WO2015027511A1 (en) * | 2013-09-02 | 2015-03-05 | Chen Hui Chiang | Lamp base with heat dissipation structure and lamp thereof, and illumination device |
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Application publication date: 20110928 |