CN202708817U - LED spotlight - Google Patents
LED spotlight Download PDFInfo
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- CN202708817U CN202708817U CN2012202357965U CN201220235796U CN202708817U CN 202708817 U CN202708817 U CN 202708817U CN 2012202357965 U CN2012202357965 U CN 2012202357965U CN 201220235796 U CN201220235796 U CN 201220235796U CN 202708817 U CN202708817 U CN 202708817U
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- heat radiation
- chip
- heat
- led shot
- heat dissipation
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Abstract
The utility model discloses a LED spotlight, comprising a housing provided with air holes, light penetration sheets arranged in the air holes of the housing, a chip and a reflection cup arranged in the housing and a radiator arranged in the housing. The radiator comprises a heat dissipation base part and a heat dissipation main body part. The chip is fixed to the heat dissipation base part; the heat dissipation base part is provided with a wiring hole; a lead stretches into the wiring hole to be in connection with the chip. The LED spotlight possesses good heat dissipation effects and can raise a chip luminance rate and prolong a service life of the chip.
Description
Technical field
The utility model relates to technical field of semiconductor illumination, particularly relates to a kind of LED shot-light.
Background technology
Along with the LED(light emitting diode) technology increasingly mature, the advantages such as volume is little, power consumption is low because having for LED, long service life, high brightness, low in calories, environmental protection, sturdy and durable, changeable, be called as after incandescent lamp, sodium vapor lamp, fluorescent lamp the 4th generation light source, be widely used in various indoor, outdoor display screens, in the view and white-light illuminating of the building such as traffic signals, tunnel, mansion, outdoor billboard, park night scene, airport, subway, elevated overpass.
But LED is because single light-emitting area is narrow, usually large-scale integrated forms a larger light emitting source in the circuit board, can cause thus the amount of heat accumulation, and the rising of temperature can make its luminous efficiency plummet, so the problem of the difficult heat radiation of LED application product becomes increasingly conspicuous.
Existing LED shot-light on the market adopts the heat-dissipating casing of aluminum more, although heat-dissipating casing is provided with louvre, the heat convection effect of heat-dissipating casing and outside air is undesirable, causes heat in time not distribute.Therefore existing LED shot-light heat dispersion is undesirable, to exerting an influence in luminous efficiency and service life of LED.
Therefore, the radiating effect that how to improve the LED shot-light is the problem that those skilled in the art need to solve.
Summary of the invention
The purpose of this utility model provides a kind of LED shot-light, and it has good radiating effect, can improve the luminance of LED, prolongs the service life of LED.
LED shot-light provided by the utility model, comprise the shell that is provided with air-vent, the light transmission piece that is arranged at the loophole of described housing, the chip that is arranged at described enclosure interior and reflector, also comprise the radiator that is arranged in the described shell, described radiator comprises heat dissipation base section and heat radiation main part, described chip fixedly places described heat dissipation base section, and described heat dissipation base section is provided with for wire and stretches into the wiring hole that is connected with described chip.
Preferably, the shape of cross section of described heat radiation main part is circular, and described heat dissipation base section is connected in the bottom of described heat radiation main part, and described heat radiation main part is corresponding with described air-vent.
Preferably, the outer surface of described heat radiation main part is provided with continuous heat radiation projection, and described heat radiation projection is corresponding with described air-vent.
Preferably, described radiator is Aluminium Radiator, and also comprises the plastic heat radiation cover that is placed on described radiator periphery, and described plastic heat radiation cover inner surface is provided with the groove corresponding with described heat radiation projection.
Preferably, also comprise the potsherd that is fixedly installed on described heat dissipation base section, described chip is fixedly installed on described potsherd.
Preferably, also comprise the mount pad that is fixedly installed on the described potsherd, described mount pad is provided with the through hole that exposes for described chip, and the edge part of described through hole is provided with annular projection, and the bottom of described reflector is placed in described annular projection.
Preferably, described shell comprises capping, and described light transmission piece is connected to the openend of described reflector, and the end of described capping is connected to described light transmission piece.
Preferably, also comprise power supply, the power source cavity that described power supply places described enclosure to arrange.
Preferably, described power supply is provided with thermal-shutdown circuit.
LED shot-light provided by the utility model, comprise the shell that is provided with air-vent, the light transmission piece that is arranged at the loophole of described housing, the chip that is arranged at described enclosure interior and reflector, the radiator that is consisted of by heat dissipation base section and heat radiation main part that is included in also that enclosure is fixedly installed, chip is fixedly installed on heat dissipation base section, and heat dissipation base section is provided with the wiring hole that is connected with chip for wire.In existing LED shot-light, adopt the heat-dissipating casing of aluminum more, although heat-dissipating casing is provided with louvre, the heat convection weak effect of heat-dissipating casing and outside air causes heat in time not distribute.And the utility model is by arranging radiator, and the heat that chip distributes in use passes to the heat radiation main part by heat dissipation base section, and then carries out heat convection by air-vent and the outside air of shell, with dissipation of heat in external environment.By using radiator to increase area of dissipation, can effectively dissipation of heat be gone out, therefore can improve the luminance of chip, prolong the service life of chip.
A kind of preferred embodiment in, the shape of cross section of the radiator body corresponding with air-vent is circular, and heat dissipation base section with the heat radiation main part the bottom be connected.It is circular that the main part that will dispel the heat is arranged to cross section, compares with the heat radiation main body with other structures of volume, and area of dissipation is larger.Heat convection is convenient in the main part that will dispel the heat setting corresponding to air-vent like this, can make very fast the distributing of heat, improves radiating efficiency.
In another preferred embodiment, the outer surface of heat radiation main part is provided with continuous heat radiation projection.Increase the area of dissipation of heat radiation main part by the heat radiation projection is set, can accelerate radiating rate, improved radiating effect.
In another preferred embodiment, radiator is the radiator of aluminum, and also comprises the plastic heat radiation cover that is placed on the radiator periphery, and the inner surface of plastic heat radiation cover is provided with and the corresponding groove of projection that dispels the heat.Because radiator is aluminum, its fusing point is higher, directly contact radiator with chip and be difficult for fusing or distortion, and the plastic heat radiation cover has good thermal conductivity and heat radiation, and the plastic heat radiation cover is set has increased area of dissipation, so just heat can well be derived from the heat radiation main part, then carry out heat convection and radiation heat transfer with the external world, therefore, so arrange, can guarantee that radiator is difficult on the basis of scaling loss, further improve the heat dispersion of shot-light, can reduce the temperature of chip, thereby improve the luminance of chip, prolong the service life of chip.
In another preferred embodiment, chip is fixedly installed on heat dissipation base section by potsherd.Because potsherd has good thermal conductivity and temperature tolerance, chip is fixedly installed on the potsherd, potsherd has good temperature tolerance and just can not be out of shape because of the high temperature of chip or melt, and the thermal conductivity of potsherd is good, the heat that distributes of chip just can pass to heat dissipation base section by potsherd like this, and then just the heat of chip can be spread out of fast, improved radiating effect.
In another preferred embodiment, power supply is provided with thermal-shutdown circuit.When the power supply temperature surpassed predetermined temperature, power supply can auto-breaking, can prevent from burning out because of excess Temperature chip, thereby chip has been played protective effect.
Description of drawings
Fig. 1 is the structural representation of LED shot-light in the utility model specific embodiment;
Fig. 2 is the top view schematic diagram of radiator and plastic heat radiation cover in the LED shot-light shown in Figure 1;
Fig. 3 is the shell mechanism schematic diagram of LED shot-light shown in Figure 1;
Wherein, Fig. 1-Fig. 3:
The specific embodiment
Core of the present utility model provides a kind of LED shot-light, and it has good radiating effect, can improve the luminance of chip, prolongs the service life of chip.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of LED shot-light in the utility model specific embodiment, and Fig. 2 is the top view schematic diagram of radiator and plastic heat radiation cover in the LED shot-light shown in Figure 1, and Fig. 3 is the shell mechanism schematic diagram of LED shot-light shown in Figure 1.
In the specific embodiment provided by the utility model, the light transmission piece 2 of the loophole that the LED shot-light comprises the shell 1 that is provided with air-vent 14, be arranged at shell 1, chip 12 and reflector 3 also are arranged at the inside of shell 1, also comprise the radiator that is formed by heat radiation main part 4 and heat dissipation base section 6, radiator is fixedly installed on the inside of shell 1, chip 12 is fixedly mounted on heat dissipation base section 6, and heat dissipation base section 6 is provided with wiring hole 7, and wire is connected with chip 12 by wiring hole 7.
Existing LED shot-light adopts the heat-dissipating casing of aluminum more, although heat-dissipating casing is provided with louvre, the heat convection weak effect of heat-dissipating casing and outside air causes heat in time not distribute.Therefore existing LED shot-light heat dispersion is undesirable, to exerting an influence in luminous efficiency and service life of LED.
LED shot-light provided by the utility model, the heat that chip 12 distributes in use passes to heat radiation main part 4 by heat dissipation base section 6, and then the air-vent by shell 1 14 carries out heat convection with outside air, with dissipation of heat in external environment.By using radiator to increase area of dissipation, can effectively dissipation of heat be gone out, therefore can improve the luminance of chip 12, prolong the service life of chip 12.
And being provided with louvre on the top of shell 1, air also can carry out heat convection with heat radiation main part 4 by the louvre on top like this, has improved radiating effect.
What air-vent 14 adopted is rectangular air-vent, arranges like this to have increased ventilative area, is convenient to circulation and the heat radiation of air, has improved the effect of heat radiation.
Need to prove, air-vent 14 set on the shell 1 is rectangular air-vent, certainly, does not also get rid of and is arranged to other shapes, such as the air-vent of circle.
In this specific embodiment, heat dissipation base section 6 is connected with heat radiation main part 4, and is circular with the shape of cross section of the heat radiation main part 4 of air-vent 14 corresponding settings.Arrange like this with the heat radiation main body with other structures of volume and compare, area of dissipation is larger.And with air-vent 14 corresponding settings, be convenient to heat convection, can make very fast the distributing of heat, improve the efficient of heat radiation.
Certainly, continuous heat radiation projection can also be set at the outer surface of heat radiation main part 4.These heat radiation projections have increased the area of dissipation of heat radiation main part 4, therefore can accelerate radiating rate, improve radiating effect.
In addition, can also between heat radiation main part 4 and shell 1, be fixedly installed plastic heat radiation cover 5, the inner surface of plastic heat radiation cover 5 is provided with the groove corresponding with the heat radiation projection of radiator body 4, and plastic heat radiation cover 5 is processed into by engineering plastics, and radiator is the radiator of aluminum.
Because radiator is aluminum, its fusing point is higher, directly contacts with chip to be difficult for fusing or distortion.And plastic heat radiation cover 5 has good thermal conductivity and heat radiation, by being set, plastic heat radiation cover 5 increased area of dissipation, can be good at heat is derived from heat radiation main part 4, then carry out heat convection and radiation heat transfer with the external world, therefore, so setting can guarantee that radiator is difficult on the basis of scaling loss, further improve the heat dispersion of shot-light, reduce the temperature of chip 12, thereby improve the luminance of chip 12, prolong the service life of chip 12.
Need to prove, plastic heat radiation cover 5 is processed by engineering plastics, certainly, does not also get rid of the heat radiation plastics that use other, such as general-purpose plastics.
In addition, chip 12 can also be fixedly installed on heat dissipation base section 6 by potsherd 11, and potsherd 11 is adhered to heat dissipation base section 6 by heat-conducting glue 10, and the surface area of potsherd 11 is larger than the surface area of chip 12.
Because potsherd 11 has good thermal conductivity and temperature tolerance, chip 12 is fixedly installed on potsherd 11, potsherd 11 can not melt because of high temperature or be out of shape, and the thermal conductivity of potsherd 11 is good, the heat that distributes of chip 12 just can well pass to heat dissipation base section 6 by potsherd 11 like this, and then just the heat of chip 11 can be spread out of fast, improved radiating effect.
The surface area of potsherd 11 is large, on the one hand is convenient to install chip 12, has increased on the other hand the contact area with heat dissipation base section 6, so just the heat of chip 12 better can be passed to heat dissipation base section 6.
Need to prove, potsherd 11 is to be adhered to heat dissipation base section 6 by heat-conducting glue 10, certainly, does not also get rid of and uses other material that potsherd 11 is fixedly connected on heat dissipation base section 6.
Also need to prove, potsherd 11 is provided with electrode, wire is connected with electrode on the potsherd 11 by wiring hole 7, and chip 12 also is connected with the electrode of potsherd 11, certainly, also can adopt other the mode of connection, as directly wire being linked to each other with the electrode of chip 12 by wiring hole 7, chip 12 is bonded on the potsherd 11.
Secondly, can also comprise the mount pad 13 that is fixedly installed on potsherd 11, mount pad 13 is provided with the through hole that exposes for chip 12, and the bottom of mount pad 13 is provided with the groove corresponding with potsherd 11, potsherd 11 is placed in the groove of mount pad 13, and at the edge of through hole annular projection can be set, the bottom of reflector 3 is placed in annular protrusion.
By the bottom at mount pad 13 groove is set, potsherd 11 is placed in the groove, be convenient on the one hand the installation of mount pad 13, can prevent that on the other hand potsherd 11 from coming off.
In addition, shell 1 can also comprise capping 15, and the openend holding of reflector 3 is at loophole, and light transmission piece 2 connects with the end face of the openend of reflector 3, and the end of capping 15 is connected to light transmission piece 2.
Need to prove, the chip 12 of mentioning herein is a LED.
By description above, LED shot-light provided by the utility model has good radiating effect, can improve the luminance of LED, prolongs the result of use of LED.
Above LED shot-light provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. LED shot-light, comprise the shell that is provided with air-vent, the light transmission piece that is arranged at the loophole of described housing, the chip that is arranged at described enclosure interior and reflector, it is characterized in that, also comprise the radiator that is arranged in the described shell, described radiator comprises heat dissipation base section and heat radiation main part, described chip fixedly places described heat dissipation base section, and described heat dissipation base section is provided with for wire and stretches into the wiring hole that is connected with described chip.
2. LED shot-light according to claim 1 is characterized in that, the shape of cross section of described heat radiation main part is circular, and described heat dissipation base section is connected in the bottom of described heat radiation main part, and described heat radiation main part is corresponding with described air-vent.
3. LED shot-light according to claim 1 is characterized in that, the outer surface of described heat radiation main part is provided with continuous heat radiation projection, and described heat radiation projection is corresponding with described air-vent.
4. LED shot-light according to claim 3 is characterized in that, described radiator is Aluminium Radiator, and also comprises the plastic heat radiation cover that is placed on described radiator periphery, and described plastic heat radiation cover inner surface is provided with the groove corresponding with described heat radiation projection.
5. LED shot-light according to claim 1 is characterized in that, also comprises the potsherd that is fixedly installed on described heat dissipation base section, and described chip is fixedly installed on described potsherd.
6. LED shot-light according to claim 5, it is characterized in that, also comprise the mount pad that is fixedly installed on the described potsherd, described mount pad is provided with the through hole that exposes for described chip, and the edge part of described through hole is provided with annular projection, and the bottom of described reflector is placed in described annular projection.
7. LED shot-light according to claim 6 is characterized in that, described shell comprises capping, and described light transmission piece is connected to the openend of described reflector, and the end of described capping is connected to described light transmission piece.
8. according to claim 1 to 7 arbitrary described LED shot-lights, it is characterized in that, also comprise power supply, the power source cavity that described power supply places described enclosure to arrange.
9. LED shot-light according to claim 8 is characterized in that, described power supply is provided with thermal-shutdown circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202357965U CN202708817U (en) | 2012-05-23 | 2012-05-23 | LED spotlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202357965U CN202708817U (en) | 2012-05-23 | 2012-05-23 | LED spotlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708817U true CN202708817U (en) | 2013-01-30 |
Family
ID=47589117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202357965U Expired - Fee Related CN202708817U (en) | 2012-05-23 | 2012-05-23 | LED spotlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740972A (en) * | 2017-11-17 | 2018-02-27 | 赵永继 | A kind of lift Ceiling light |
-
2012
- 2012-05-23 CN CN2012202357965U patent/CN202708817U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740972A (en) * | 2017-11-17 | 2018-02-27 | 赵永继 | A kind of lift Ceiling light |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20160523 |