CN203868763U - Light emitting diode (LED) light-emitting device - Google Patents
Light emitting diode (LED) light-emitting device Download PDFInfo
- Publication number
- CN203868763U CN203868763U CN201420224129.6U CN201420224129U CN203868763U CN 203868763 U CN203868763 U CN 203868763U CN 201420224129 U CN201420224129 U CN 201420224129U CN 203868763 U CN203868763 U CN 203868763U
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- China
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- round base
- upper cover
- round
- circular upper
- led
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- Expired - Fee Related
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model relates to a light emitting diode (LED) light-emitting device, which solves the technical problem that existing LED lamps are poor in cooling performance, and comprises a circuit board and a cooling device, wherein an LED lamp chip is arranged on the circuit board, the circuit board is a double-sided copper clad aluminum oxide substrate, the cooling device is provided with a round bas and a round upper cover, 24 rectangular plate-shaped cooling fins are vertically connected between the round base and the round upper cover, a fixed column is arranged in the center of the round base, the 24 rectangular plate-shaped cooling fins are uniformly distributed in a radioactive mode through the fixed column which is arranged in the center of the round base, 3 fixed columns are further arranged on the outer periphery of the round base, the round upper cover and the round base are connected through 4 fixed columns, 24 rectangular air holes are arranged on the round upper cover, and the rectangular air holes are arranged between the rectangular plate-shaped cooling fins in the radial direction. The round base and the double-sided copper clad aluminum oxide substrate are connected, and the LED light-emitting device can be widely applied in lighting of LED.
Description
Technical field
The utility model relates to a kind of light fixture, particularly relates to a kind of LED light-emitting device.
Background technology
Along with the development of energy-conserving and environment-protective cause, LED (Light Emitting Diode is called for short light emitting diode) lamp is widely used in lighting field, replaces gradually the light fixture such as incandescent lamp, fluorescent lamp.Conventionally LED lamp is made up of LED chip, circuit board, drive circuit and heat abstractor that can be luminous, LED chip can produce very large heat in the time of work, if these heats can not be dispersed and remove timely and effectively, can make operating temperature too high, finally cause luminous efficiency reduction, the lost of life, especially most important to high-powered LED lamp (power supply uses external communication electric rectification to become direct current).Existing cooling plate structure is simple, heat dispersion is poor, so developing the LED lamp that a kind of radiating efficiency is high becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Summary of the invention
The utility model is exactly in order to solve the poor technical problem of existing LED lamp heat dispersion, and a kind of LED light-emitting device of perfect heat-dissipating is provided.
The technical solution of the utility model is, a kind of LED light-emitting device is provided, and comprises circuit board and heat abstractor, and circuit board is provided with LED lamp chip, and circuit board is double-sided copper-clad aluminum oxide substrate; Heat abstractor is provided with round base and circular upper cover, between round base and circular upper cover, be vertically connected with 24 rectangle sheet fin, the center of round base is provided with 1 fixed leg, and 24 rectangle sheet fin become emanant with the fixed leg at the center of round base and are uniformly distributed; On the excircle of round base, be also provided with 3 fixed legs, circular upper cover is connected by 4 fixed legs with round base; Circular upper cover is provided with 24 rectangle passages, rectangle passage in radial direction between rectangle sheet fin; Round base is connected with double-sided copper-clad aluminum oxide substrate.
The preferred technical scheme of the utility model is, the diameter of round base and circular upper cover is identical, on round base, be provided with 24 slots, circular upper cover is provided with 24 slots, one end of rectangle sheet fin is located in the slot of round base, and the other end of rectangle sheet fin is located in the slot of circular upper cover.
The utility model further preferred technical scheme is, the material of heat abstractor is aluminium, between round base and double-sided copper-clad aluminum oxide substrate, is provided with heat-conducting silicone grease layer, and heat-conducting silicone grease layer thickness is 0.5mm.
The beneficial effects of the utility model are that better than the radiating effect of traditional heat abstractor, heat radiation is quick and heat dissipation capacity is large, has improved luminous efficiency, greatly extends the life-span of LED lamp.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of heat abstractor.
Symbol description in figure:
1. circuit board, 2.LED lamp chip, 3. heat abstractor, 4. round base, 5. rectangle sheet fin, 6. circular upper cover, 7. fixed leg, 8. rectangle passage, 9. heat-conducting silicone grease layer.
Detailed description of the invention
Referring to accompanying drawing, with specific embodiment, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises circuit board 1, and circuit board 1 is provided with LED lamp chip 2, and circuit board 1 is double-sided copper-clad aluminum oxide substrate.Smear one deck heat-conducting silicone grease at the back side of circuit board 1 (the not one side of mounted LED lamp chip 2), form heat-conducting silicone grease layer 9, heat abstractor 3 is close on this heat-conducting silicone grease layer, use the mechanisms such as screw to be fixed connection.When the thickness that heat-conducting silicone grease layer 9 is is 0.5mm, can bring into play best conductive force.Circuit board 1 adopts double-sided copper-clad aluminum oxide substrate also to make radiating effect better.
As shown in Figure 2, heat abstractor 3 is provided with round base 4 and circular upper cover 6, and round base 4 is identical with the diameter of circular upper cover 6, is vertically connected with multiple rectangle sheet fin 5 between round base 4 and circular upper cover 6.On round base 4, be provided with multiple slots, circular upper cover 6 is also provided with the slot corresponding with the slot position of round base 4, and the slot quantity on slot quantity, circular upper cover 6 on round base 4 is consistent with the quantity of rectangle sheet fin 5.Insert in the slot of round base 4 rectangle sheet fin 5 one end, the other end inserts in the slot of circular upper cover 6, rectangle sheet fin 5 is with 7 one-tenth emanant being uniformly distributed of fixed leg at the center of round base 4, the quantity of rectangle sheet fin 5 is 24, slot on respective circular pedestal 4 is also 24, and the slot on circular upper cover 6 is also 24.On the excircle of round base 4, be also provided with three fixed legs 7, circular upper cover 6 is connected by these four fixed legs 4 with round base 4.Between the slot of circular upper cover 6, have rectangle passage 8, the quantity of rectangle passage 8 is identical with the quantity of rectangle sheet fin 5, namely the top between adjacent two rectangle sheet fin 5 is provided with rectangle passage 8, namely rectangle passage 8 in radial direction between rectangle sheet fin 5.Adjacent two.Heat abstractor 3 uses aluminum to do, and further improves radiating effect.
Smear one deck heat-conducting silicone grease in the bottom surface of round base 4, the back side of circuit board 1 is close on this heat-conducting silicone grease being fixed on, energising makes LED lamp chip 2 luminous, the heat that LED lamp chip 2 produces is transmitted on rectangle sheet fin 5 by heat-conducting silicone grease, round base 4, then is transmitted on circular upper cover 6 by rectangle sheet fin 5.The heat that round base 4 sheds, by the air heat in space between rectangle sheet fin 5, rises air, then discharges by rectangle passage 8, thereby make Air Flow, plays the effect of continuous heat radiation, has greatly improved heat dispersion.
It should be noted that inapplicable heat-conducting silicone grease is directly close together also passable by the back side of the bottom surface of round base 4 and circuit board 1.
The above only, to preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.Every in claim limited range of the present utility model, any amendment of making, be equal to replacement, improvement etc., all should be within protection domain of the present utility model.
Claims (4)
1. a LED light-emitting device, comprises circuit board and heat abstractor, and described circuit board is provided with LED lamp chip, it is characterized in that, described circuit board is double-sided copper-clad aluminum oxide substrate; Described heat abstractor is provided with round base and circular upper cover, between described round base and described circular upper cover, be vertically connected with 24 rectangle sheet fin, the center of described round base is provided with 1 fixed leg, and described 24 rectangle sheet fin become emanant with the fixed leg at the center of described round base and are uniformly distributed; On the excircle of described round base, be also provided with 3 fixed legs, described circular upper cover is connected by described 4 fixed legs with described round base; Described circular upper cover is provided with 24 rectangle passages, described rectangle passage in radial direction between described rectangle sheet fin; Described round base is connected with described double-sided copper-clad aluminum oxide substrate.
2. LED light-emitting device according to claim 1, it is characterized in that, the diameter of described round base and described circular upper cover is identical, on described round base, be provided with 24 slots, described circular upper cover is provided with 24 slots, one end of described rectangle sheet fin is located in the slot of described round base, and the other end of described rectangle sheet fin is located in the slot of described circular upper cover.
3. LED light-emitting device according to claim 2, is characterized in that, the material of described heat abstractor is aluminium, between described round base and described double-sided copper-clad aluminum oxide substrate, is provided with heat-conducting silicone grease layer.
4. LED light-emitting device according to claim 3, is characterized in that, described heat-conducting silicone grease layer thickness is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420224129.6U CN203868763U (en) | 2014-05-04 | 2014-05-04 | Light emitting diode (LED) light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420224129.6U CN203868763U (en) | 2014-05-04 | 2014-05-04 | Light emitting diode (LED) light-emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868763U true CN203868763U (en) | 2014-10-08 |
Family
ID=51649716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420224129.6U Expired - Fee Related CN203868763U (en) | 2014-05-04 | 2014-05-04 | Light emitting diode (LED) light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868763U (en) |
-
2014
- 2014-05-04 CN CN201420224129.6U patent/CN203868763U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20150504 |
|
| EXPY | Termination of patent right or utility model |