CN202884799U

CN202884799U - Optic cavity structure of light-emitting diode (LED) lamp

Info

Publication number: CN202884799U
Application number: CN2012203306439U
Authority: CN
Inventors: 楊美齡; 張晉嘉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-10
Filing date: 2012-07-10
Publication date: 2013-04-17
Anticipated expiration: 2022-07-10

Abstract

An optic cavity structure of a light-emitting diode (LED) lamp is characterized by comprising a base seat, a light reflecting component, at least one LED module set, and a light shade, wherein the base seat, the light reflecting component, and the light shade form an optic cavity in a combining mode, the LED module set is arranged on the base seat inside the optic cavity, the inclined light reflecting component is arranged in the lighting direction of an LED, an inner side face, towards which the light reflecting component faces, of the inner portion of the optic cavity is a light reflecting face, a light source of the LED can pass an angle of the light reflecting component and an shape of the light reflecting component and is collected by the light reflecting face so as to determine a light intensity range which needs to be enhanced through reflection. The optic cavity structure of the LED lamp can raise illuminating brightness in the condition that the number of the light source and power consumption are not increased.

Description

The optics cavity structure of LED light fixture

Technical field

The utility model relates to a kind of field of lighting apparatus, particularly a kind of can be under the condition that does not increase quantity of light source and power consumption the technology of enhancing lighting brightness.

Background technology

The characteristics of, power saving little based on volume and long service life are added the lifting of luminosity technology, and it is more and more general that LED (light emitting diode, light emitting diode) is applied to lighting use.Because the volume of LED is very little, the luminous lumen of single LEDs yet can't be compared with Yi Ban De Tungsten silk bulb, fluorescent lamp or existing lighting, therefore, and present LED lighting, all be that several LEDs are integrated into a LED module, produce practical brightness of illumination by concentrating luminous.For example, several LED are integrated into concentrate luminous can reaching and the general identical even more efficient illuminating effect of bulb in the circuit substrate of a particular area or the light shield.In addition, the high-capacity LED input power only has 15～20% to convert light to, and all the other 80～85% convert heat to, therefore, the LED module efficient heat abstractor of must arranging in pairs or groups comes suitably heat is got rid of, and avoids LED crystal grain interface temperature too high and affect luminous efficiency, and the reduction luminescent lifetime.

For example, general LED fitting structure includes a radiator, a power supply unit and a LED module substantially; Wherein, the LED module is at a circuit substrate several LEDs to be set, circuit substrate be passed into can make behind the electric current luminous.Radiator then comprises a pedestal, and is located at several pieces fins on the pedestal.The LED module is located at pedestal with respect to the another side of fin, and whereby, the heat that produces during LED module electrified light emitting is conducted to each fin, will be got rid of from the heat that fin distributes by air-flow again.Aforementioned existing LED lamp device, it is the LED module that required area is set according to the demand of lightness, and the LED crystal grain of required quantity, and cooperate the radiator of corresponding area, and the power supply unit of corresponding power, therefore, the LED crystal grain of use and the increase of power will directly promote manufacturing cost, simultaneously also than power consumption.

The utility model content

Technical problem underlying to be solved in the utility model is, when overcoming existing LED light fixture wish enhancing lighting brightness, must increase the quantity of LED crystal grain, and raising output power, so that increased the shortcoming of manufacturing cost and power consumption, and provide a kind of optics cavity structure of LED light fixture, it is between the pedestal of LED light fixture and light reflection element and light shield an optics cavity to be set, structure by this optics cavity, so that from being located at the luminous light source of LED on the pedestal, collect by reflection by the light reflection surface of this light reflection element, decide need the luminance scope, the utility model can be under the condition that does not increase quantity of light source and power consumption enhancing lighting brightness.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of optics cavity structure of LED light fixture includes a pedestal, a light reflection element, at least one LED module and a light shield; This reflecting element can be with pedestal one-body molded or element independently, consist of an optics cavity with the light shield combination is common, and the LED module be located on the pedestal in the optics cavity; The relative both sides of the light direction of LED are provided with tool and tilt and symmetrical light reflection element, or the light reflection element of taper is set at the light direction of LED, and the inner face of light reflection element is as light reflection surface, light shield is combined on the light reflection element, whereby, the luminous light source of LED can by the angle of light reflection element and the selection of shape, be collected by reflection by light reflection surface, decide the luminance scope that need strengthen, so as to enhancing lighting brightness.

Light reflection element of the present utility model is located at the symmetrical both sides of described pedestal.

Light reflection element of the present utility model can be one-body molded with pedestal, also can be a kind of independently element.

Light reflection element of the present utility model can be a kind of bullet, so that the LED light fixture consists of a bulb moulding.

Light reflection element of the present utility model can be a kind of light reflection original paper symmetrical with the one-body molded tool inclination of pedestal tool, so that the LED light fixture consists of a fluorescent tube moulding.

Light reflection element of the present utility model can arrange the first embedded structure, and light shield then arranges the second embedded structure, and the first embedded structure and the second embedded structure can be mutually chimeric, and then make light shield be combined in light reflection element.

The first embedded structure of the present utility model is the raised line of being located at the lateral surface of this light reflection element, and described the second embedded structure is the groove of being located at this light shield medial surface.

The utility model is located at the light reflection surface of light reflection element, can be a kind of plane, also can be a kind of arcwall face.

Light reflection element of the present utility model can be by the selection of angle and shape, collects reflection via light reflection surface, decides the luminance scope of the enhancing of institute's palpus.

The beneficial effects of the utility model are, it is between the pedestal of LED light fixture and light reflection element and light shield an optics cavity to be set, structure by this optics cavity, so that from being located at the luminous light source of LED on the pedestal, collect by reflection by the light reflection surface of this light reflection element, decide need the luminance scope, the utility model can be under the condition that does not increase quantity of light source and power consumption enhancing lighting brightness.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the first embodiment section plan of the optics cavity structure of the utility model LED light fixture.

Fig. 2 is the partial perspective view that the LED module of the utility model the first embodiment is combined in the structure of pedestal.

Fig. 3 is the partial perspective view that the light shield of the utility model the first embodiment is combined in the structure of pedestal.

Fig. 4 A is the optics cavity structure of the utility model LED light fixture, and its light reflection surface is the plane, and angle is 120 ° embodiment floor map.

Fig. 4 B is the optics cavity structure of the utility model LED light fixture, and its light reflection surface is the plane, and angle is 60 ° embodiment floor map.

Fig. 4 C is the optics cavity structure of the utility model LED light fixture, and its light reflection surface is the embodiment floor map of cambered surface.

Fig. 5 is the second embodiment section plan of the optics cavity structure of the utility model LED light fixture.

The number in the figure explanation:

1 pedestal

11 interior spaces

12 light reflection elements

121 first embedded structures

122 light reflection surfaces

13 radiating fins

14 conductive heads

2.LED module

21 circuit substrates

22LED

3 light shields

31 second embedded structures

4 power supply units

The C optics cavity

L optics cavity length

The specific embodiment

Fig. 1 to Fig. 3 is the first embodiment of the present utility model, includes a pedestal 1, a light reflection element 12 1 LED modules 2 and a light shield 3; Wherein, the preferred embodiments of pedestal 1 is to adopt the aluminum metallic material with good heat conductive and heat dissipating, utilize crowded type technology to mold a longitudinal bodies, and form an interior space 11 that is used for installing power supply unit 4 at the first end of pedestal 1, relative second end of pedestal 1 then is used for installing LED module 2, even also the second end of pedestal 1 be LED22 for light direction, the lateral surface of pedestal 1 can also mold several and be used for absorbing heat and the fin 13 that enlarges area of dissipation; The preferably, the relative both sides of the second end of pedestal 1 can arrange respectively and symmetrical light reflection element 12 in one-body molded ground, and corresponding medial surface of light reflection element 12 is light reflection surface 122.Two light reflection elements 12 also can be a kind of independently elements, with other fixed form it is attached to the relative both sides of pedestal 1 again, described light reflection surface 122 can be a plane, it also can be an arcwall face, selection by light reflection element 12 angles and shape, collect reflection via light reflection surface 122, decide the luminance scope that institute must enhancing.

LED module 2 includes a circuit substrate 21 haply, and several are located at the LED22 on the circuit substrate 21, circuit substrate 21 is located at the second end of pedestal 1, and be electrically connected at the power supply unit 4 that is located at interior space 11,4 of power supply units are electrically connected at the external power source (not shown), and then supply induced current to circuit substrate 21 and LED22, make LED22 luminous.

The both sides of light shield 3 then can be combined on two light reflection elements 12, its combining structure, can one first embedded structure 121 be set respectively at two light reflection elements 12, and arrange respectively in the relative both sides of light shield 3 can with these the first embedded structure 121 mutual the second chimeric embedded structures 31; After utilizing the first embedded structure 121 and the second embedded structure 31 mutually chimeric light shield 3 is combined on the light reflection element 12; At embodiment of the present utility model, described the first embedded structure 121 is the raised line of being located at the lateral surface of light reflection element 12, described the second embedded structure 31 utilizes groove and raised line mutually to be slidingly matched for being located at the groove of light shield 3 medial surfaces, light shield 3 can be slided be combined on the light reflection element 12.Whereby, consist of an optics cavity C between two light reflection elements 12 of light shield 3 and pedestal 1, and the distance of LED22 and light shield 3 is optics cavity length L.This optics cavity length L decides according to the angle of symmetrical light reflection surface 122.

Shown in Fig. 4 A, when the angle theta 1 of two light reflection elements 12 of the present utility model is 120 °, after the luminous light source of LED22 then can be projected to light reflection surface 122, reflect light shield 3 with 60 ° angle of reflection again.Shown in Fig. 4 B, when the angle theta 2 of two light reflection elements 12 of the present utility model is 60 °, after the luminous light source of LED22 then can be projected to light reflection surface 122, reflect light shield 3 with 120 ° angle of reflection again; Therefore, thus strengthen the luminance scope.

Shown in Fig. 4 C, the light reflection surface 122 of two light reflection elements 12 of the present utility model can be made as cambered surface, therefore, after the luminous light source of LED22 can be projected to cambered surface, reflects light shield 3 with suitable angle of reflection again, has therefore strengthened the scope of luminance.

The LED light fixture that forms by aforementioned pedestal 1, light reflection element 12, LED module 2 and light shield 3 structure of organizing, ligthing paraphernalia for a kind of fluorescent tube moulding, be suitable for being installed on brightness and need to ask larger place, replace the fluorescent lamp of normal operation, reach the effect of carbon reduction.But optics cavity structure of the present utility model is suitable for making the LED light fixture of bulb moulding too; As shown in Figure 5, the utility model can arrange the conductive head 14 that is used for being screwed together in power socket in that conglobate pedestal 1 is set, pedestal 1 is provided with LED module 2 equally, and around the light direction of pedestal 1 direct formation light reflection element 12, and forming the light reflection surface 122 of taper at the internal diameter of

light reflection element

12,12 of light reflection elements arrange the light shield 3 of at present general bulb moulding; Whereby, consist of an optics cavity C between light shield 3 and light reflection surface 122 and the pedestal 1; After the luminous light source of LED22 then can be projected to light reflection surface 122, reflect again light shield 3; Therefore strengthen the scope of luminance, thereby promoted brightness of illumination.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.

Claims

1. the optics cavity structure of a LED light fixture, it is characterized in that, include a pedestal, one light reflection element, at least one LED module and a light shield, described pedestal and light reflection element and the common formation of light shield combination one optics cavity, and the LED module is located on the pedestal in the optics cavity, the light direction of LED is provided with the light reflection element that tool tilts, this light reflection element is light reflection surface in the face of the medial surface of this optics cavity inside, the luminous light source of LED can be via angle and the shape of light reflection element, again by reflection, decide the light quantity scope that will strengthen by the light reflection surface collection.

2. the optics cavity structure of LED light fixture according to claim 1 is characterized in that, described light reflection element is bullet.

3. the optics cavity structure of LED light fixture according to claim 1 is characterized in that, described light reflection element is located at the symmetrical both sides of described pedestal.

4. the optics cavity structure of each described LED light fixture in 3 according to claim 1 is characterized in that described light reflection element and this pedestal are one-body molded.

5. the optics cavity structure of each described LED light fixture in 3 according to claim 1 is characterized in that described light reflection element is independent component.

6. the optics cavity structure of LED light fixture according to claim 1, it is characterized in that, described light reflection element is provided with the first embedded structure, and described light shield then is provided with the second embedded structure, makes this light shield be combined in this light reflection element after this first embedded structure and this second embedded structure are mutual chimeric.

7. the optics cavity structure of LED light fixture according to claim 6 is characterized in that, described the first embedded structure is the raised line of being located at the lateral surface of this light reflection element, and described the second embedded structure is the groove of being located at this light shield medial surface.

8. the optics cavity structure of each described LED light fixture in 3 according to claim 1 is characterized in that described light reflection surface is a plane.

9. the optics cavity structure of each described LED light fixture in 3 according to claim 1 is characterized in that described light reflection surface is a cambered surface.