CN102650389B - LED (Light-Emitting Diode) lamp with heat radiation structure - Google Patents
LED (Light-Emitting Diode) lamp with heat radiation structure Download PDFInfo
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- CN102650389B CN102650389B CN201210084644.4A CN201210084644A CN102650389B CN 102650389 B CN102650389 B CN 102650389B CN 201210084644 A CN201210084644 A CN 201210084644A CN 102650389 B CN102650389 B CN 102650389B
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Abstract
The invention discloses an LED (Light-Emitting Diode) lamp with a heat radiation structure. The LED lamp comprises a lamp head, a power panel, a fixing cover for the power panel, a lamp cup, a light source board, a heat radiator, and a lamp cover or a lens. A plurality of heat radiation fins are distributed around the heat radiator at intervals; openings are arranged at the two ends of the lamp cup; the heat radiator is mounted in the lamp cup; a heat conduction cavity is formed between each two adjacent heat radiation fins and the inner wall of the lamp cup; the light source board is provided with the heat radiator at one opening of the lamp cup; a first air vent is arranged in the lamp cover or the lens; an external diameter of the fixing cover for the power panel is less than an internal diameter of the lamp cup; a second air vent is formed by a gap between the fixing cover for the power panel and the other opening of the lamp cup; one end of each head conduction cavity is vertically communicated with the outside directly through the corresponding first air vent or the light source board and the corresponding first air vent; and the other end of each each heat conduction cavity is vertically communicated with the outside through the second air vent. With the adoption of the structure, a chimney effect is generated, so that the heat radiation properties of the LED lamp are greatly improved.
Description
Technical field
The present invention relates to LED illumination lamp field, particularly relate to the LED lamp with radiator structure that a kind of radiating effect significantly improves.
Background technology
LED lamp, also known as LED lamp, the technical characterstic such as efficient with it, energy-conservation, long-lived, small and exquisite, is becoming main force's product of illumination market of new generation, and is effectively pulling the high speed development of environmental protection and energy-conservation industry.At present, along with day by day reducing of LED volume, and the day by day increase of LED power, the heat that LED produces gets more and more, and the heat management of LED lamp becomes affects its illumination quality and the key factor in service life.As when LED is overheated, light fixture chromaticity coordinates color temperature shift, luminous flux declines, and meanwhile, light fixture also can correspondingly shorten service life.Therefore, the design of LED lamp integral heat sink structure is most important.
Existing LED lamp, mostly direct with its Lamp cup for radiator, radiating effect is not good.For overcoming this shortcoming, the direct lateral wall border at Lamp cup had increases fin, and to increase the contact area of itself and air, what have installs a radiator additional in Lamp cup, but for the former, the heat produced due to LED is mainly concentrated therein, the simple area of dissipation increasing Lamp cup, in time and effectively outwards cannot dredge heat, simultaneously, because area of dissipation increases, cause light fixture overall weight to increase, be unfavorable for that light fixture develops towards small portableization; For the latter, its cavity utilizing Lamp cup and radiator to surround no doubt can form thermal conductive cavity, but can not ensure the circulate of air-flow because of its thermal conductive cavity and extraneous mode of communicating, also cannot realize quick heat radiating.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, a kind of LED lamp with radiator structure be provided, its have radiating effect significantly, alleviate the features such as whole characteristic of a navigation light amount, lamp outer casing insulation.
The technical solution adopted for the present invention to solve the technical problems is: a kind of LED lamp with radiator structure, comprises lamp holder, power panel, power panel fixed cap, Lamp cup, the light source board that LED light source is housed, radiator and lampshade or lens; The circumferential interval of radiator is distributed with multiple radiating fin, the both ends open of Lamp cup, and radiator is installed in Lamp cup, and its every two adjacent radiating fins respectively and surround a thermal conductive cavity between the inwall of Lamp cup; Light source board is loaded on radiator in an opening part of Lamp cup; On lampshade or lens, one end of corresponding each thermal conductive cavity is provided with the first air passing hole, and this lampshade or lens are loaded on an opening part of Lamp cup; The external diameter of power panel fixed cap is less than the internal diameter of Lamp cup, and this power panel fixed cap is located in Lamp cup, and its one end is stretched out by another opening of Lamp cup, and connects lamp holder, and the gap between this power panel fixed cap and another opening of Lamp cup forms the second air passing hole; Power panel is loaded in power panel fixed cap, and is electrically connected with light source board and lamp holder respectively; The one end of each thermal conductive cavity that radiator and Lamp cup are formed directly forms vertical connection by the first corresponding air passing hole or through light source board and the first corresponding air passing hole with extraneous respectively, and the other end of each thermal conductive cavity that radiator and Lamp cup are formed forms vertical connection respectively by the second air passing hole with extraneous.
Described radiator comprises the cylinder of a hollow, and this cylindrical one end is closed, other end opening.Described multiple radiating fin is spaced apart in this cylindrical outer wall border; Described light source board is installed on this cylindrical one end, and the other end of described power panel fixed cap is inserted in this cylinder by the cylindrical other end.
Described radiator comprises a circular piece, and described multiple radiating fin is spaced apart on the end face of its side along the outer rim border of this circular piece, and described light source board is installed on the opposite side end face of this circular piece; The border of this circular piece is also interval with some 3rd air passing holes, and each 3rd air passing hole is corresponding one by one with described each thermal conductive cavity respectively, and forms one end of described each thermal conductive cavity.
Within the end of described light source board is positioned at each radiating fin of described radiator the inner along border or the inner, one end of described each thermal conductive cavity directly forms vertical connection by the first corresponding air passing hole and the external world respectively.
The end of described light source board prolongs along border and outside the outer end of each radiating fin of described radiator or outer end, one end of the corresponding described each thermal conductive cavity of described light source board is interval with the 4th air passing hole, and one end of described each thermal conductive cavity forms vertical connection respectively by the 4th air passing hole of correspondence and the first air passing hole of correspondence with extraneous.
First air passing hole of described lampshade or lens is several, and these several the first air passing hole distributes along the circumferential interval of described lampshade or lens respectively.
Along border, all or part of direction towards described light source board extends porose sidewall to the medial extremity of each the first air passing hole described, and the hole sidewall that each first air passing hole extends distinguishes all or part of supporting to described light source board.
4th air passing hole of described light source board is several, and this several the outer rim border of the 4th air passing hole respectively along described light source board is spaced apart.
The reverse side of described light source board is by heat-conducting cream and described radiator close contact.
Described Lamp cup and described power panel fixed cap are respectively polymer insulation material, and described radiator is metal material.
A kind of LED lamp with radiator structure of the present invention, form a thermal conductive cavity respectively, and the center line of this thermal conductive cavity vertically between every two adjacent radiating fins of its radiator and the inwall of Lamp cup.During light fixture work, the LED light source heating on its light source board, and transfer heat to radiator, radiator is heated and makes the air themperature in its each thermal conductive cavity increase.Because one end of each thermal conductive cavity of radiator directly forms vertical connection by the first corresponding air passing hole or through the first air passing hole of light source board and correspondence with extraneous respectively, the other end of each thermal conductive cavity that radiator and Lamp cup are formed forms vertical connection respectively by the second air passing hole with extraneous, it is made to produce stack effect, thus the hot-air in the hot-fluid on each radiating fin surface and each thermal conductive cavity is strengthened with the convection current of extraneous cold air, and then the heat that light fixture work is produced is fast to external diffusion.
The invention has the beneficial effects as follows, because one end of each thermal conductive cavity of its radiator directly forms vertical connection by the first corresponding air passing hole or through the first air passing hole of light source board and correspondence with extraneous respectively, the other end of each thermal conductive cavity that radiator and Lamp cup are formed forms vertical connection respectively by the second air passing hole with extraneous, it is made to produce stack effect, the hot-fluid produced when light fixture is worked is formed along the space of vertical bank and cool ambient air and adds strong convection, thus it can significantly improve the heat dispersion of LED lamp, be conducive to the service life of greatly improving LED lamp, after it utilizes stack effect, the heat that light fixture produces can be dispelled the heat by radiator substantially completely, thus its Lamp cup can adopt insulating polymeric material to replace metal material, this is just conducive to the weight and the production cost that alleviate light fixture, makes lamp outer casing have insulation characterisitic simultaneously, due to the medial extremity of each the first air passing hole of its lampshade or lens, along border, all or part of direction towards light source board extends porose sidewall, and the hole sidewall that each first air passing hole extends distinguishes all or part of supporting to light source board, make each first air passing hole of lampshade or lens can utilize himself and hole sidewall respectively, the 4th corresponding air passing hole forms vertical gas passage excessively, each thermal conductive cavity of radiator well can be docked with the external world by corresponding gas passage of crossing respectively, thus the stack effect making it be formed is more obvious, cross-ventilation is stronger, thus the radiating rate of this LED lamp can greatly be improved.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But a kind of LED lamp with radiator structure of the present invention is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is embodiment one exploded perspective view of the present invention;
Fig. 2 is embodiment one structural representation of the present invention;
Fig. 3 is embodiment one sectional view of the present invention;
Fig. 4 is embodiment two exploded perspective view of the present invention;
Fig. 5 is embodiment two sectional view of the present invention;
Fig. 6 is embodiment three structural representation of the present invention;
Fig. 7 is the structural representation of embodiment three lampshade of the present invention;
Fig. 8 is the structural representation of embodiment three radiator of the present invention;
Fig. 9 is embodiment three sectional view of the present invention.
Detailed description of the invention
Embodiment one:
Refer to shown in Fig. 1-Fig. 3, a kind of LED lamp with radiator structure of the present invention, comprise lamp holder 1, power panel, power panel fixed cap 2, Lamp cup 3, the light source board 5 that LED light source is housed, lens 6 and radiator 4.Wherein, radiator 4 is metal material, such as aluminium or copper material etc., and it comprises the cylinder 41 of hollow and the square-shaped radiating fin 42 of multiple difference; One end of cylinder 41 is closed, other end opening (here, blind end refers to the one end near light source board, openend refers to the one end near lamp holder), multiple radiating fin 42 outer wall border in this cylinder 41 spaced apart (here, each radiating fin 42 and cylinder 41 are in integrally connecting).Lamp cup 3 and power panel fixed cap 2 adopt insulating polymeric material to be made respectively, wherein, the both ends open of Lamp cup 3, radiator 4 is connected in Lamp cup 3, and its cylinder 41 and Lamp cup 3 are coaxially arranged, its every two adjacent radiating fins respectively and surround the vertical thermal conductive cavity of a center line axis between the inwall of Lamp cup 3.
The end of light source board 5 along border prolong and radiator 4 each radiating fin outer end outside, namely the radius (this light source board 5 is rounded) of light source board 5 center that is greater than radiator 4 to its radiating fin outer end 43 between distance; LED light source is equipped with at the middle part of this light source board 5, and one end of the corresponding each thermal conductive cavity in outer rim border is then interval with four the 4th air passing holes 51, and each the 4th air passing hole camber shape respectively; This light source board 5 is matched with an opening part of Lamp cup 3, and adopts one end compact siro spinning technology of the cylinder 41 of heat-conducting cream and radiator.The circumferential interval of lens 6 is distributed with four and forms inside and outside the first corresponding air passing hole 61 one by one with the 4th air passing hole of light source board, these lens 6 are loaded on an opening part of Lamp cup 3, these lens 6 concrete cement on light source board 5 in an opening part of Lamp cup 3, certainly, when the radial dimension of these lens 6 is larger, it also can adopt clamping or bonding mode to be fixed on an opening of Lamp cup 3.
The external diameter of power panel fixed cap 2 is less than the internal diameter of Lamp cup 3, this power panel fixed cap 2 is integrally connected in Lamp cup 3 (certain, this power panel fixed cap 2 also can be independent of one another with Lamp cup 3, and adopt the mode of clamping to be fixed in Lamp cup 3), and the gap between this power panel fixed cap 2 and another opening of Lamp cup 3 forms the second air passing hole 31.One end of this power panel fixed cap 2 is stretched out by another opening of Lamp cup, and connects lamp holder 1; In Lamp cup, the other end of this power panel fixed cap 2 is just inserted in cylinder 41 by the other end of the cylinder 41 of radiator.Power panel is loaded in power panel fixed cap 2, and is electrically connected with light source board 5 and lamp holder 1 respectively.Radiator 4 forms vertical connection respectively by the 4th corresponding air passing hole, the first air passing hole with extraneous with the one end of each thermal conductive cavity that Lamp cup 1 is formed, and the other end of each thermal conductive cavity that radiator 4 and Lamp cup 1 are formed then forms vertical connection respectively by the second air passing hole 31 with extraneous.
Preferred as one, the medial extremity of each the first air passing hole of described lens 6 is extended with holes sidewall respectively along the direction towards light source board 5, and the hole sidewall that extends of each first air passing hole is respectively all to light source board 5.Here, one hole sidewall of each the first air passing hole of concrete lens 6 is formed jointly by the first annular sidewall 62 being located at each first air passing hole inner ring, and another hole sidewall of each the first air passing hole is formed jointly by the second annular sidewall 63 being located at each first air passing hole outer ring.After installing, the LED light source in the middle part of light source board is coated in the first annular sidewall 62.Here, because the radiating fin 42 of radiator is many, the quantity of its thermal conductive cavity formed is also many, therefore, inside and outside form each 4th air passing hole one to one, thermal conductive cavity that the first air passing hole is simultaneously adjacent with at least two is respectively corresponding, namely have at least two adjacent thermal conductive cavities to be connected with extraneous by same group of the 4th air passing hole, the first air passing hole.However, when each thermal conductive cavity is connected with the external world, or a vertical heat dissipation channel (as indicated by the arrows in fig. 3) can be formed respectively.
A kind of LED lamp with radiator structure of the present invention, during work, the LED heating on its light source board 5, and transfer heat to radiator 4, radiator 4 is heated and makes the air themperature in its each thermal conductive cavity increase.Due to cold air comparatively hot-air weight, thus as indicated by the arrows in fig. 3, cold air can the first air passing hole 61 of scioptics, 4th air passing hole 51 of light source board falls and enters each thermal conductive cavity, simultaneously, hot-air in each thermal conductive cavity respectively can by the 4th corresponding air passing hole 51, first air passing hole 61 rises (when the lamp holder 1 of this light fixture is installed down), or cold air can be fallen by the second air passing hole 31 of the formation between another opening of Lamp cup 3 and power panel fixed cap 2, simultaneously, hot-air in each thermal conductive cavity can rise (when the lamp holder of this light fixture is installed) upward by the second air passing hole 31 of the formation between another opening of Lamp cup 3 and power panel fixed cap 2 respectively, thus form cross-ventilation and exchange.Because each thermal conductive cavity of radiator 4 is on same vertical line with corresponding the 4th air passing hole, the first air passing hole and the second air passing hole respectively, thus it can cooperatively interact, produce stack effect, thus strengthen the convection current of the hot-air in the hot-fluid on each radiating fin surface and each thermal conductive cavity and extraneous cold air, and then effectively improve the heat dispersion of LED lamp.
Because the first annular sidewall 62 of lens 6 and the second annular sidewall 63 form the holes sidewall of each first air passing hole respectively, and the first annular sidewall 62 of assembling rear lens 6 and the second annular sidewall 63 support respectively to light source board 5, make that each first air passing hole of lens 6 can utilize himself and hole sidewall respectively, the 4th corresponding air passing hole forms and vertical cross gas passage, each thermal conductive cavity of radiator 4 well can be docked with the external world by corresponding gas passage of crossing respectively, thus the stack effect making it be formed is more obvious, cross-ventilation is stronger.
After this LED lamp adopts said structure, the heat that its work produces can carry out rapid diffusion by each thermal conductive cavity of radiator 4 substantially completely, thus its Lamp cup 2 adopts insulating polymeric material to make, and can reach with this effect reducing whole lamp weight and cost, insulation.
Embodiment two:
A kind of LED lamp with radiator structure of the present invention, refer to shown in Fig. 4, Fig. 5, the difference of itself and embodiment one is: the end of its light source board 5 is positioned at the inner 44 of each radiating fin of radiator 4 along border, because this light source board 5 is circular, thus in other words, namely the radius of light source board 5 center that equals radiator 4 to its radiating fin the inner 44 between distance.So, this light source board 5 can not stop the one end of each thermal conductive cavity that radiator 4 and Lamp cup 3 are formed, that is, radiator 4 only need can form vertical connection with the external world by the first corresponding air passing hole 61 with the one end of each thermal conductive cavity that Lamp cup 3 is formed.
In this enforcement two, lens 6 are also provided with first annular sidewall 62 and second annular sidewall 63 identical with embodiment one, difference is, in first annular sidewall of lens 6 and the second annular sidewall, the first annular sidewall 62 is only had to support to light source board 5, meanwhile, lens 6 also utilize this first annular sidewall 62 to be adhesively fixed mutually with light source board 5.In like manner, when the radial dimension of lens 6 is larger, it also can adopt clamping or bonding mode to be fixed on an opening of Lamp cup 3.
Embodiment three:
A kind of LED lamp with radiator structure of the present invention, refer to shown in Fig. 6-Fig. 9, the difference of itself and embodiment one is: each radiating fin 42 of its radiator 4 is respectively in petal-shaped, and with a circular piece 45 for carrier: the plurality of radiating fin 42 is distributed on the end face of its side along the circumferential interval of circular piece 45, and namely one end of each radiating fin 42 integrally connects respectively or is fixed on a side end face of this circular piece 45; Its light source board 5 is assemblied on the opposite side end face of this circular piece 45, and is filled with heat-conducting cream between this light source board 5 and circular piece 45, makes both form close contact; The border of this circular piece 45 is also interval with some 3rd air passing holes 44, and each 3rd air passing hole 44 is corresponding one by one with described each thermal conductive cavity respectively, and forms one end of described each thermal conductive cavity; This LED lamp adopts the coated light source board 5 of lampshade 7, and this lampshade 7 bonding (can certainly adopt the mode of clamping) is on an opening of Lamp cup 3; This lampshade 7 is similar to the lens 6 in embodiment one, is provided with first air passing hole 71 corresponding with each 4th air-vent of light source board 5 equally at its circumferential interval.
This embodiment three is identical with embodiment one, and the medial extremity of each the first air passing hole of its lampshade 7 is along being extended with holes sidewall respectively towards the direction of light source board 5 equally, and the hole sidewall that extends of each first air passing hole is respectively all to light source board 5.Here, one hole sidewall of each the first air passing hole of concrete lampshade 7 is formed jointly by the 3rd annular sidewall 72 being located at each first air passing hole inner ring, and another hole sidewall of each the first air passing hole is formed jointly by the 4th annular sidewall 73 being located at each first air passing hole outer ring.After installing, the LED light source in the middle part of light source board 5 is coated in the 3rd annular sidewall 72.
A kind of LED lamp with radiator structure of the present invention, it is identical with embodiment one, the radiating fin 42 of its radiator 4 is same with each thermal conductive cavity that Lamp cup 3 is formed can cooperatively interact with the second air passing hole 61 of the 4th corresponding air passing hole, lampshade and the second air passing hole 31, produce stack effect, form vertical heat dissipation channel (as depicted by the arrows in figure 7), thus strengthen convection current and the exchange of lamp interior hot-air and cool ambient air, and then improve the radiating effect of LED lamp.Especially, each first air passing hole of lampshade 7 can cooperatively interact with self holes sidewall and the 4th corresponding air passing hole respectively, form vertical gas passage excessively, each thermal conductive cavity of radiator 4 well can be docked with the external world by corresponding gas passage of crossing respectively, thus the stack effect making it be formed is more obvious, cross-ventilation is stronger.
Identical with embodiment one, its Lamp cup also adopts insulating polymeric material to make, and is thus conducive to the weight and the production cost that reduce whole lamp.
Above-described embodiment is only used for further illustrating a kind of LED lamp with radiator structure of the present invention; but the present invention is not limited to embodiment; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all fall in the protection domain of technical solution of the present invention.
Claims (10)
1. there is a LED lamp for radiator structure, comprise lamp holder, power panel, power panel fixed cap, Lamp cup, the light source board that LED light source is housed, radiator and lampshade or lens; It is characterized in that: the circumferential interval of radiator is distributed with multiple radiating fin, the both ends open of Lamp cup, and radiator is installed in Lamp cup, and its every two adjacent radiating fins respectively and surround a thermal conductive cavity between the inwall of Lamp cup; Light source board is loaded on radiator in an opening part of Lamp cup; On lampshade or lens, one end of corresponding each thermal conductive cavity is provided with the first air passing hole, and this lampshade or lens are loaded on an opening part of Lamp cup; The external diameter of power panel fixed cap is less than the internal diameter of Lamp cup, and this power panel fixed cap is located in Lamp cup, and its one end is stretched out by another opening of Lamp cup, and connects lamp holder, and the gap between this power panel fixed cap and another opening of Lamp cup forms the second air passing hole; Power panel is loaded in power panel fixed cap, and is electrically connected with light source board and lamp holder respectively; The one end of each thermal conductive cavity that radiator and Lamp cup are formed directly forms vertical connection by the first corresponding air passing hole or through light source board and the first corresponding air passing hole with extraneous respectively, and the other end of each thermal conductive cavity that radiator and Lamp cup are formed forms vertical connection respectively by the second air passing hole with extraneous.
2. the LED lamp with radiator structure according to claim 1, it is characterized in that: described radiator comprises the cylinder of a hollow, and this cylindrical one end is closed, other end opening, described multiple radiating fin is spaced apart in this cylindrical outer wall border; Described light source board is installed on this cylindrical one end, and the other end of described power panel fixed cap is inserted in this cylinder by the cylindrical other end.
3. the LED lamp with radiator structure according to claim 1, it is characterized in that: described radiator comprises a circular piece, described multiple radiating fin is spaced apart on the end face of its side along the outer rim border of this circular piece, and described light source board is installed on the opposite side end face of this circular piece; The border of this circular piece is also interval with some 3rd air passing holes, and each 3rd air passing hole is corresponding one by one with described each thermal conductive cavity respectively, and forms one end of described each thermal conductive cavity.
4. the LED lamp with radiator structure according to any one of claim 1-3, it is characterized in that: within the end of described light source board is positioned at each radiating fin of described radiator the inner along border or the inner, one end of described each thermal conductive cavity directly forms vertical connection by the first corresponding air passing hole and the external world respectively.
5. the LED lamp with radiator structure according to any one of claim 1-3, it is characterized in that: the end of described light source board prolongs along border and outside the outer end of each radiating fin of described radiator or outer end, one end of the corresponding described each thermal conductive cavity of described light source board is interval with the 4th air passing hole, and one end of described each thermal conductive cavity forms vertical connection respectively by the 4th air passing hole of correspondence and the first air passing hole of correspondence with extraneous.
6. the LED lamp with radiator structure according to any one of claim 1-3, is characterized in that: the first air passing hole of described lampshade or lens is several, and these several the first air passing hole distributes along the circumferential interval of described lampshade or lens respectively.
7. the LED lamp with radiator structure according to any one of claim 6, it is characterized in that: along border, all or part of direction towards described light source board extends porose sidewall to the medial extremity of each the first air passing hole described, and the hole sidewall that each first air passing hole extends distinguishes all or part of supporting to described light source board.
8. the LED lamp with radiator structure according to claim 5, is characterized in that: the 4th air passing hole of described light source board is several, and this several the outer rim border of the 4th air passing hole respectively along described light source board is spaced apart.
9. the LED lamp with radiator structure according to any one of claim 1-3, is characterized in that: the reverse side of described light source board is by heat-conducting cream and described radiator close contact.
10. the LED lamp with radiator structure according to any one of claim 1-3, is characterized in that: described Lamp cup and described power panel fixed cap are respectively polymer insulation material, and described radiator is metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210084644.4A CN102650389B (en) | 2012-03-27 | 2012-03-27 | LED (Light-Emitting Diode) lamp with heat radiation structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210084644.4A CN102650389B (en) | 2012-03-27 | 2012-03-27 | LED (Light-Emitting Diode) lamp with heat radiation structure |
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| CN102650389B true CN102650389B (en) | 2015-02-11 |
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| JP6241992B2 (en) * | 2012-10-19 | 2017-12-06 | Ａｐｓジャパン株式会社 | Lighting device |
| CN103438410A (en) * | 2013-07-30 | 2013-12-11 | 无锡市爱尔电子有限公司 | LED (Light Emitting Diode) lamp |
| CN105276550B (en) * | 2015-11-05 | 2020-08-25 | 漳州立达信光电子科技有限公司 | Heat radiation lamp cup |
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| CN102650389A (en) | 2012-08-29 |
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