CN201983013U - Combined type LED lamp cup - Google Patents
Combined type LED lamp cup Download PDFInfo
- Publication number
- CN201983013U CN201983013U CN2010206933052U CN201020693305U CN201983013U CN 201983013 U CN201983013 U CN 201983013U CN 2010206933052 U CN2010206933052 U CN 2010206933052U CN 201020693305 U CN201020693305 U CN 201020693305U CN 201983013 U CN201983013 U CN 201983013U
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- China
- Prior art keywords
- heat dissipation
- led lamp
- lamp cup
- louvre
- combined led
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a combined type LED (Light Emitting Diode) lamp cup comprising a heat dissipation device, wherein a plurality of heat dissipation fins which are vertically arranged are distributed uniformly on an outer surface of the heat dissipation device, a plastic housing is sleeved outside of the heat dissipation device, and the plastic housing is provided with a plurality of heat dissipation holes thereon. By adding the plastic housing outside of the heat dissipation device, the utility model effectively protects users not to be scratched by edges of the heat dissipation fins, and protects the users not to be burned by surface of the heat dissipation fins during working of the lamp; in addition, the utility model establishes several air channels through the heat dissipation holes, so as to force the air to enter into heat dissipation channels upwardly from a lower end of the lamp cup and then flow out through the heat dissipation holes, thereby forming high-efficiency convection heat dissipation, compared with the previous natural convection heat dissipation way that the lamp cup is exposed outside, the heat dissipation effect are improved.
Description
Technical field
The utility model relates to a kind of LED light fixture Lamp cup, particularly a kind of combined LED Lamp cup.
Background technology
The structure of common LED lamp as shown in Figure 1, it comprises rubber base 21, in rubber base 21, accommodate LED driving power 22, outside rubber base 21, be arranged with thermal louver cup 23, the outer surface of heat radiation Lamp cup vertically is provided with a plurality of radiating fins 24, the front end of heat radiation Lamp cup 23 is provided with heat-conducting plate 25, be fixed with the PCB circuit board 26 and the lens 27 of led light source, the characteristics of this fitting structure are that heat radiation Lamp cup 23 is exposed to the outside, be shell be again radiator, it typically is aluminium and process, there is the hidden danger that scratches, scalds staff in heat radiation Lamp cup 23 outer radiating fins 24.
Summary of the invention
The utility model provides a kind of combined LED Lamp cup of avoiding scalding, scratching staff at the technical problem that above-mentioned prior art exists.
The technical solution of the utility model is achieved in that
A kind of combined LED Lamp cup comprises radiating element, is evenly distributed with the radiating fin of a plurality of vertical settings on the outer surface of radiating element, is arranged with a plastic casing outside radiating element, is provided with a plurality of louvres on plastic casing.
As preferably, form heat dissipation channel between any two adjacent radiating fins, the lower end of heat dissipation channel is an air inlet, described louvre is communicated with heat dissipation channel.And plastic casing has covered radiating fin, and heat dissipation channel dispels the heat by louvre, has guaranteed radiating effect.
As preferably, described louvre is arranged on the sidewall of plastic casing.
As preferably, described louvre is in-line, is along the setting of plastic casing length direction.The Another important function of plastic casing is to have set up several air channels, force air up to enter into heat dissipation channel from Lamp cup lower end air inlet, flow out by louvre again, thereby formed efficient heat loss through convection, the exposed Natural Heat Convection mode of Lamp cup as compared with the past, radiating effect is improved.
As preferably, the quantity of louvre is identical with the quantity of heat dissipation channel.The corresponding louvre of heat dissipation channel has not only effectively protected staff not contact with radiating fin, also is beneficial to heat radiation.
Good heat radiation quality is relevant with area, the shape of louvre, and at the above-mentioned louvre that is in-line, as preferably, the length-width ratio of louvre is not less than 6.
As preferably, the ratio of louvre area and air-admitting surface is greater than 3.The area of air inlet is the area of heat dissipation channel lower end cross section; Can obtain outstanding relatively NATURAL CONVECTION COEFFICIENT OF HEAT and good expansion flow phenomenon thus.
As preferably, described louvre is triangular in shape, is longitudinally to be provided with, and the width of louvre increases from down to up gradually.
At above-mentioned leg-of-mutton louvre, as preferably, the quantity of louvre is identical with the quantity of heat dissipation channel.
At above-mentioned leg-of-mutton louvre, as preferably, the ratio of louvre area and air-admitting surface is greater than 3.
As preferably, described louvre can also be arranged on the upper end of plastic casing, and louvre is connected with the upper end of heat dissipation channel.Air enters from heat dissipation channel lower end air inlet, flows out from the heat dissipation channel upper end again, and heat is taken away, and has formed good convection current.
As preferably, in plastic casing, be provided with in order to hold the hollow cylinder of driving power, be provided with cavity in radiating element inside, described hollow cylinder is inserted in the cavity of radiating element.Driving power is contained in the hollow cylinder of plastic casing, and open-ended place can seal with glue, has guaranteed electrical safety.
As preferably, an end of hollow cylinder links to each other with this end that links to each other with lamp holder of plastic casing.
As preferably, described hollow cylinder and plastic casing are formed in one.
As preferably, radiating element adopts screw to link to each other with plastic casing.
As preferably, be provided with an end cap at the front end of plastic casing, described end cap is an annulus body, circumferentially evenly is provided with a plurality of air-vents on the annulus body, described air-vent is communicated with heat dissipation channel.End cap has two effects, and the one, can cover the front end of plastic casing, both can avoid staff directly directly to contact with the radiating fin front end, increased aesthetic measure again; The 2nd, lens or cell-shell can be installed on end cap according to actual needs.
As preferably, each air-vent is connected with 1 independent heat dissipation channel or 2～3 adjacent heat dissipation channels.
As preferably, be extended with a back-up ring downwards along the inner ring edge of end cap, on back-up ring, be provided with the screw mounting hole site, back-up ring links to each other by the plane of screw with the radiating element front end.
The radiating fin of common LED lamp generally all compares closely, and the gap between the adjacent in twos radiating fin is very little, and the spacing of its root is usually about 2mm, so NATURAL CONVECTION COEFFICIENT OF HEAT is lower, and product thermal diffusivity price ratio is not high.As preferably, the spacing of the adjacent in twos radiating fin root of the utility model radiating element is 4～8mm.Thus, increased the gap between the radiating fin as compared with the past, not only formed a passage that heat radiation is good, also reduced fin, thereby reduced whole weight, provided cost savings; Cooperate plastic casing again, formed efficient heat loss through convection, improved radiating effect.
Adopted the principle of the present utility model and the beneficial effect of technique scheme to be:
1. the application of environmental-protection fireproof heatproof novel plastic shell: not only effectively protect the user not scratched by the edge of radiating fin, did not scald on the surface of radiating fin when the protection user was not worked by light fixture; But also several air channels have been set up by louvre, force air up to enter into heat dissipation channel, flow out by louvre again, thereby formed efficient heat loss through convection from the Lamp cup lower end, the exposed Natural Heat Convection mode of Lamp cup as compared with the past, radiating effect is improved.
2. strengthened the spacing between the radiating fin, not only formed the expansion flow structure of good Natural Heat Convection, expanding flow phenomenon is that hot-air takes place to expand suddenly in cold outlet, generation is to a pressure differential of air in the heat dissipation channel, make the interior flow velocity of heat dissipation channel promote, help heat radiation, guarantee the service life of LED; But also increased spacing between the radiating fin, and reduce the quantity of radiating fin, thereby effectively reduced product weight, reduce cost.
Description of drawings
Fig. 1 is the explosive view of LED light fixture in the prior art;
Fig. 2 is the fractionation structural representation of the utility model radiating element and plastic casing;
Fig. 3 is the fractionation structural representation of radiating element, plastic casing and end cap among the embodiment 1;
Fig. 4 is the installation diagram of radiating element, plastic casing and end cap among the embodiment 1;
Fig. 5 is the fractionation structural representation of radiating element, plastic casing and end cap among the embodiment 2;
Fig. 6 is the installation diagram of radiating element, plastic casing and end cap among the embodiment 2;
Fig. 7 is the fractionation structural representation of radiating element, plastic casing and end cap among the embodiment 3;
Fig. 8 is the installation diagram of radiating element, plastic casing and end cap among the embodiment 3;
Fig. 9 is the fractionation structural representation of radiating element and plastic casing among the embodiment 4;
Figure 10 is the installation diagram of radiating element and plastic casing among the embodiment 4.
The specific embodiment
The specific embodiment of the present utility model is as follows:
Embodiment 1: a kind of combined LED Lamp cup, as shown in Figure 2, comprise radiating element 2, radiating element 2 inside are provided with cavity, are evenly distributed with the radiating fin 5 of a plurality of vertical settings on the outer surface of radiating element 2, form heat dissipation channel 8 between any two adjacent radiating fins 5, heat dissipation channel 8 lower ends are air inlet, outside radiating element 2, be arranged with a plastic casing 6, the size of plastic casing 6, shape just and radiating element 2 be complementary, can be coated on the outside of radiating element 2 just; Be provided with a plurality of on plastic casing 6 and heat dissipation channel 8 corresponding louvres 7, the quantity of louvre 7 is identical with the quantity of heat dissipation channel 8.
Described louvre 7 is in-line, be along the setting of plastic casing length direction, and described louvre 7 is provided with over against heat dissipation channel 8, be connected with heat dissipation channel 8, the width of louvre 7 is identical with the Breadth Maximum of heat dissipation channel 8, makes plastic casing 6 cover radiating fin 5 and expose heat dissipation channel 8 to be beneficial to heat radiation.Generally more than 15mm, the width of louvre 7 is generally more than 2.5mm for the length of louvre 7.In the present embodiment, the length of louvre 7 is 15mm, and width is 2.5mm.
Be provided with the hollow cylinder 9 in order to hold driving power in plastic casing 6, described hollow cylinder 9 is inserted in the cavity of radiating element 2; One end of hollow cylinder 9 links to each other with this end that links to each other with lamp holder of plastic casing 6; Described hollow cylinder 9 is formed in one with plastic casing 6.
After being nested into radiating element 2 in the plastic casing 6, the position of adjusting heat dissipation channel 8 and louvre 7 makes both corresponding just, and promptly louvre 7 exposes heat dissipation channel 8 fully, guarantees circulation of air; Then radiating element 2 and plastic casing 6 are fixed together by screw.
Shown in Fig. 3,4, be provided with an end cap 10 at the front end of plastic casing 6, described end cap 10 is an annulus body, circumferentially evenly is provided with a plurality of air-vents 11 on the annulus body, described air-vent 11 is communicated with heat dissipation channel 8; Each air-vent 11 is connected with two adjacent heat dissipation channels 8.At this moment, the area of the air inlet of heat dissipation channel 8 lower ends be heat dissipation channel lower end and air-vent 11 coincide the part area, the area of louvre 7 and the ratio of air-admitting surface are 3.5, inner ring edge along end cap 10 is extended with a back-up ring 12 downwards, be provided with the screw mounting hole site on back-up ring 12, back-up ring 12 links to each other by the plane of screw with radiating element 2 front ends.
Through check, combined LED Lamp cup of the present utility model all has good behaviour comparing with common Lamp cup aspect weight and the cost control.
By above table as seen, when reducing weight, improved radiating effect, and cost descends a lot.
The utility model is according to the demand of heat dissipation capacity, and the requirement of temperature controlling range, adjust best fin depth-width ratio, wall thickness at radiating element is on the basis of 2mm, with best thermal diffusivity price ratio, drawing thickness is 1mm, highly is 10mm, the root spacing is the radiating fin of 5mm, according to classics heat radiation Study on Theory achievement, in the free convection, spacing of fin/fin thickness value is greater than 6, consider the changing factor of gravity direction, and add the expansion flow phenomenon that plastic casing produces, and factor such as overall appearance size, optimum dissolves the thickness and the spacing of fin, and fin height, we know and are not high more good more, and we use software to be optimized design when carrying out rational depth-width ratio design, and the consideration practical factor, adjust 10mm.
Moreover, then carry out concrete experimental comparison, select optimization heat radiation aluminium cup parameter.As seen select rational radiation parameter, help reducing cost, reduce weight, obtain good cost performance.And the good radiating effect of pursuit.
Following form has been enumerated the LED junction temperature rise that parameters such as some fin thicknesses of the present utility model, spacing, height draw and the contrast of common LED lamp.
By above table as can be seen, the fin root spacing of common LED lamp is on the basis of 2mm, the LED junction temperature rise is about 42 ℃, and the utility model has strengthened fin root spacing, junction temperature rise is about 40 ℃, not only reduce number of fins, reduced processing cost, also improved radiating effect.
Embodiment 2: the difference of present embodiment and embodiment 1 is, as Fig. 5, shown in Figure 6, described louvre 7 is triangular in shape, is longitudinally to be provided with, and the width of louvre 7 increases from down to up gradually, and the quantity of louvre 7 is identical with the quantity of heat dissipation channel 8.The length of louvre 7 is 15mm, and the width maximum is 2.5mm.
Embodiment 3: the difference of present embodiment and embodiment 1 is that as Fig. 7, shown in Figure 8, the shape of described louvre 7 is curved.
Embodiment 4: the difference of present embodiment and embodiment 1 is that as Fig. 9, shown in Figure 10, described louvre 7 is along the upper end that circumferentially is arranged on plastic casing 6, and louvre 7 is connected with the upper end of heat dissipation channel 8.Satisfying on the basis of structural strength, louvre 7 is the bigger the better, and a louvre 7 can correspondingly be communicated with 1-3 heat dissipation channel 8.
Claims (19)
1. combined LED Lamp cup, comprise radiating element (2), radiating element (2) inside is provided with cavity, on the outer surface of radiating element (2), be evenly distributed with the radiating fin (5) of a plurality of vertical settings, it is characterized in that: outside radiating element (2), be arranged with a plastic casing (6), on plastic casing (6), be provided with a plurality of louvres (7).
2. combined LED Lamp cup according to claim 1 is characterized in that: form heat dissipation channel (8) between any two adjacent radiating fins (5), the lower end of heat dissipation channel (8) is an air inlet, and described louvre (7) is communicated with heat dissipation channel (8).
3. combined LED Lamp cup according to claim 1 and 2 is characterized in that: described louvre (7) is arranged on the sidewall of plastic casing (6).
4. combined LED Lamp cup according to claim 3 is characterized in that: described louvre (7) is in-line, is along the setting of plastic casing length direction.
5. combined LED Lamp cup according to claim 4 is characterized in that: the quantity of louvre (7) is identical with the quantity of heat dissipation channel (8).
6. combined LED Lamp cup according to claim 4 is characterized in that: the length-width ratio of louvre (7) is not less than 6.
7. combined LED Lamp cup according to claim 4 is characterized in that: the ratio of louvre (7) area and air-admitting surface is greater than 3.
8. combined LED Lamp cup according to claim 3 is characterized in that: described louvre (7) is triangular in shape, is longitudinally to be provided with, and the width of louvre (7) increases from down to up gradually.
9. combined LED Lamp cup according to claim 8 is characterized in that: the quantity of louvre (7) is identical with the quantity of heat dissipation channel (8).
10. combined LED Lamp cup according to claim 8 is characterized in that: the ratio of louvre (7) area and air-admitting surface is greater than 3.
11. combined LED Lamp cup according to claim 2 is characterized in that: described louvre (7) is arranged on the upper end of plastic casing (6), and louvre (7) is connected with the upper end of heat dissipation channel (8).
12. combined LED Lamp cup according to claim 1 is characterized in that: be provided with the hollow cylinder (9) in order to hold driving power in plastic casing (6), described hollow cylinder (9) is inserted in the cavity of radiating element (2).
13. combined LED Lamp cup according to claim 12 is characterized in that: an end of hollow cylinder (9) links to each other with this end that links to each other with lamp holder of plastic casing (6).
14. according to claim 12 or 13 described combined LED Lamp cups, it is characterized in that: described hollow cylinder (9) is formed in one with plastic casing (6).
15. combined LED Lamp cup according to claim 1 is characterized in that: radiating element (2) adopts screw to link to each other with plastic casing (6).
16. combined LED Lamp cup according to claim 1, it is characterized in that: the front end at plastic casing (6) is provided with an end cap (10), described end cap (10) is an annulus body, circumferentially evenly be provided with a plurality of air-vents (11) on the annulus body, described air-vent (11) is communicated with heat dissipation channel (8).
17. combined LED Lamp cup according to claim 16 is characterized in that: each air-vent (11) is connected with 2～3 adjacent heat dissipation channels (8).
18. combined LED Lamp cup according to claim 16, it is characterized in that: the inner ring edge along end cap (10) is extended with a back-up ring (12) downwards, be provided with the screw mounting hole site on back-up ring (12), back-up ring (12) links to each other by the plane of screw with radiating element (2) front end.
19. combined LED Lamp cup according to claim 1 is characterized in that: the spacing of adjacent in twos radiating fin (5) root is 4～8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206933052U CN201983013U (en) | 2010-12-31 | 2010-12-31 | Combined type LED lamp cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206933052U CN201983013U (en) | 2010-12-31 | 2010-12-31 | Combined type LED lamp cup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983013U true CN201983013U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206933052U Expired - Lifetime CN201983013U (en) | 2010-12-31 | 2010-12-31 | Combined type LED lamp cup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201983013U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062690A (en) * | 2011-10-19 | 2013-04-24 | 富士迈半导体精密工业（上海）有限公司 | Light emitting diode (LED) lamp |
| WO2013178047A1 (en) * | 2012-05-30 | 2013-12-05 | 深圳市万家照明有限公司 | Lamp body and led bulb |
| CN104541337A (en) * | 2012-08-22 | 2015-04-22 | 西门子公司 | Valve diverter with heat sink |
-
2010
- 2010-12-31 CN CN2010206933052U patent/CN201983013U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062690A (en) * | 2011-10-19 | 2013-04-24 | 富士迈半导体精密工业（上海）有限公司 | Light emitting diode (LED) lamp |
| WO2013178047A1 (en) * | 2012-05-30 | 2013-12-05 | 深圳市万家照明有限公司 | Lamp body and led bulb |
| CN103453335A (en) * | 2012-05-30 | 2013-12-18 | 深圳市万家照明有限公司 | Lamp body and light-emitting diode (LED) bulb |
| CN103453335B (en) * | 2012-05-30 | 2016-01-20 | 深圳市万家照明有限公司 | A kind of lamp body and LED bulb |
| CN104541337A (en) * | 2012-08-22 | 2015-04-22 | 西门子公司 | Valve diverter with heat sink |
| US9861009B2 (en) | 2012-08-22 | 2018-01-02 | Siemens Aktiengesellschaft | Valve diverter with heat sink |
| CN104541337B (en) * | 2012-08-22 | 2018-03-02 | 西门子公司 | Autovalve with cooling body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
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| CX01 | Expiry of patent term |