CN201152496Y

CN201152496Y - LED lamp

Info

Publication number: CN201152496Y
Application number: CNU2008201013297U
Authority: CN
Inventors: 蔡维新; 陈文良
Original assignee: 陈文良
Current assignee: WINCHANCE TECHNOLOGY CO., LTD.
Priority date: 2008-01-30
Filing date: 2008-01-30
Publication date: 2008-11-19
Anticipated expiration: 2018-01-30

Abstract

The utility model relates to an LED lamp which is composed of an outer casing, a plurality of reflecting lamp shades, a plurality of LEDs, a glass cover, a shielding face plate, a heat radiation plate and a corresponding drive circuit, wherein, an illumination unit is composed of each LED and each reflecting lamp shade, and a plurality of illumination units are arranged in a matrix shape. The appearance of the reflecting lamp shade adopts a rectangular stage body with a rectangular upper bottom surface and a rectangular lower bottom surface, an assembly hole which can be inserted and used for fixing the LEDs is arranged at the center of one surface, namely, the upper bottom surface, the other surface, namely, the lower bottom surface, is opened, the four internal sides of the reflecting lamp shade adopt trapezoid cambered surfaces, and the radian on the two symmetrical inner side surfaces with larger area is larger, the semi-diameter of the cambered surface is slightly bigger than the width of a rectangle on the lower bottom surface, and the radian on the two symmetrical inner side surfaces with smaller area is smaller. A planar heat conducting aluminum base plate of each LED is closely contacted with the heat radiation plate. The LED lamp has the advantages that the cost is low, the heat radiation is good, the luminous efficiency is high, and the LED lamp is suitable for large-scale road illumination.

Description

A kind of LED light fixture

Technical field:

The utility model relates to a kind of LED light fixture, and relating in particular to a kind of is the LED street lamp of the high brightness of lighting source with LED.

Background technology:

Along with the development of LED technology, it is long that LED has luminous efficiency height, life-span, and drive circuit simple, save many advantages such as the energy, increasing LED is used to lighting field, even is used for street lighting, replaces traditional high-pressure halogen lamp.The LED that generally is used for road lighting mostly is great power LED, so because the also corresponding height of the high heating of its power, so this class high-power LED street lamp all need be considered heat dissipation problem.As the patent No. is 200620122474.4 invention, adopts on the large-area planar shape heat conduction aluminum substrate LED group that fin is installed, and strengthens radiating effect, to prolong the service life of great power LED.Complicated more heat sink conceptions such as invention that has even employing heat pipe, fan, conductor refrigeration sheet.The luminescent panel that also has the LED light fixture to adopt the relatively little LED of a plurality of power to form, and totally reflective with a big reflection lampshade, but a plurality of LED closely arrange and block mutually, finally reduce luminous efficiency.

Summary of the invention:

The utility model provides a kind of LED light fixture, and it has not only solved heat dissipation problem with simple structure, the also bigger luminous efficiency that improves LED.

For this reason, the utility model adopts following technical scheme.

A kind of LED light fixture, blocking panel, a heat sink and respective drive circuit by a shell, some reflection lampshades, some LED, a cloche, constitutes, wherein heat sink is set up in the shell centre position, each LED and each reflection lampshade are formed a luminescence unit, plurality of luminescence units is matrix and arranges, wherein

Reflection lampshade, external form is that upper and lower bottom surface is the rectangular stage body of rectangle, it simultaneously is that upper bottom surface central authorities are provided with and can embed and the pilot hole of fixed L ED, another side is that bottom surface is an opening, the inboard four sides of reflection lampshade is trapezoidal cambered surface, and the two symmetrical medial surface radians that area is bigger are bigger, and this cambered surface radius is a bit larger tham the width of bottom surface rectangle, and two less symmetrical medial surfaces of area show slightly radian.

The bigger two symmetrical medial surface radius of the radian of described area are 1.1 times to 1.8 times than the width of bottom surface rectangle.

Further, the cambered surface of described reflection lampshade inboard is smooth cambered surface, and the bright reflectorized material of light-plated.

Further, certain altitude is holded up in the bending of described heat sink dual-side, closely contacts with shell by this dual-side of holding up, and LED closely contacts and is locked on the heat sink by plane heat conduction aluminum substrate, and is the matrix arrangement.

Further, block panel and be installed between cloche and the reflection lampshade, corresponding reflection lampshade position is provided with sizable opening, and light passes through this opening to external exposure.

The utility model advantage: because the reflection lampshade on each luminescence unit is equipped with the circular arc side of suitable curvature, and the reflection lampshade medial surface is electroplate with reflective membrane, the light that the non-direct irradiation that LED can be sent is gone out reflects away uniformly, improves the luminous efficiency of each luminescence unit; And the heat sink that simply adopts a Heat Conduction Material to make closely contacts with the plane heat conduction aluminum substrate of LED, just can satisfy the heat radiation requirement; It is low to the utlity model has cost, good heat dissipation, and the characteristics that luminous efficiency is high are fit to extensive road lighting and use.

Description of drawings:

Fig. 1. reflection lampshade stereogram of the present utility model;

Fig. 2. reflection lampshade front view of the present utility model;

Fig. 3. reflection lampshade vertical view of the present utility model;

Fig. 4. reflection lampshade upward view of the present utility model;

Fig. 5. reflection lampshade right view of the present utility model;

Fig. 6. cooling plate structure schematic diagram of the present utility model;

Fig. 7. the installation diagram of shell of the present utility model, the plane heat conduction aluminum substrate of LED and heat sink;

Fig. 8. heat sink of the present utility model and shell assembly state diagram;

Fig. 9. the panel stereogram that blocks of the present utility model.

The figure number explanation:

(1) shell (2) reflection lampshade (21) upper bottom surface

(22) bottom surface (231) two symmetrical medial surface (232) two symmetrical medial surfaces

(31) plane heat conduction aluminum substrate (4) heat sink (5) blocks panel

The specific embodiment:

As Fig. 1-5, a kind of LED light fixture, block panel (5), a heat sink (4) and respective drive circuit formation by a shell (1), some reflection lampshades (2), some LED, a cloche,, wherein heat sink (4) is set up in shell (1) centre position, each LED and each reflection lampshade (2) are formed a luminescence unit, and plurality of luminescence units is matrix and arranges.

Reflection lampshade (2), as shown in Figure 1, external form is that upper and lower bottom surface is the rectangular stage body of rectangle, it simultaneously is that upper bottom surface (21) central authorities are provided with and can embed and the pilot hole of fixed L ED, another side is that bottom surface (22) is an opening, the inboard four sides of reflection lampshade (2) is trapezoidal cambered surface, and bigger two symmetrical medial surface (231) radians of area are big (as shown in Figure 2), this cambered surface radius is a bit larger tham the width of bottom surface (22) rectangle, and two less symmetrical medial surfaces (232) of area show slightly radian (as shown in Figure 4).

And bigger two symmetrical medial surface (231) radius of the radian of described area are 1.1 times to 1.8 times than the width of bottom surface (22) rectangle.(as shown in Figure 2).

The inboard cambered surface of described reflection lampshade (2) is smooth cambered surface, and the bright reflectorized material of light-plated.

As Fig. 6, heat sink described in the utility model (4), be plane, be the heat conduction aluminum material, this heat sink (4) is set up in shell (1) centre position, and certain altitude is holded up in the bending of heat sink dual-side, closely contacts with shell (1) by this dual-side of holding up, LED closely contacts and is locked in heat sink (4) by plane heat conduction aluminum substrate (31), and is the matrix arrangement.

As Fig. 7, heat sink has screwed hole on (4), and the locking by bolt and plane heat conduction aluminum substrate (31) is laid with the corresponding driving circuit on the plane heat conduction aluminum substrate (31).

As Fig. 9, the panel (5) that blocks of the present utility model is used to block lamp interior circuit and bolt etc., plays beauty function.Block panel (5) and be installed between cloche and the reflection lampshade (2), corresponding reflection lampshade (2) position is provided with sizable opening, and light passes through this opening to external exposure.

As Fig. 8, described heat sink (4) is sealed with shell (1), and shell (1) is a heat conductive metal.The heat of the plane heat conduction aluminum substrate (31) of LED generation is delivered to heat sink (4) like this, and heat sink (4) is delivered to shell (1) integral body again, thereby reaches better heat radiating effect.

Described cloche is transparent transparent glass, is used for sealed lamps, dustproof and waterproof.

Described LED and drive circuit adopt known technology.

Claims

1. LED light fixture, block panel (5), a heat sink (4) and respective drive circuit formation by a shell (1), some reflection lampshades (2), some LED, a cloche,, wherein heat sink (4) is set up in shell (1) centre position, each LED and each reflection lampshade (2) are formed a luminescence unit, plurality of luminescence units is matrix arranges, and it is characterized in that:

Reflection lampshade (2), external form is that upper and lower bottom surface is the rectangular stage body of rectangle, it simultaneously is that upper bottom surface (21) central authorities are provided with and can embed and the pilot hole of fixed L ED, another side is that bottom surface (22) is an opening, the inboard four sides of reflection lampshade (2) is trapezoidal cambered surface, and two symmetrical medial surface (231) radians that area is bigger are bigger, and this cambered surface radius is a bit larger tham the width of bottom surface (22) rectangle, and two less symmetrical medial surfaces (232) of area show slightly radian.

2. a kind of LED light fixture as claimed in claim 1 is characterized in that: bigger two symmetrical medial surface (231) radius of the radian of described area are 1.1 times to 1.8 times than the width of bottom surface (22) rectangle.

3. a kind of LED light fixture as claimed in claim 1 is characterized in that: the inboard cambered surface of described reflection lampshade (2) is smooth cambered surface, and the bright reflectorized material of light-plated.

4. a kind of LED light fixture as claimed in claim 1, it is characterized in that: certain altitude is holded up in described heat sink (4) dual-side bending, closely contact with shell (1) by this dual-side of holding up, LED closely contacts and is locked in heat sink (4) by plane heat conduction aluminum substrate (31), and is the matrix arrangement.

5. a kind of LED light fixture as claimed in claim 1 is characterized in that: block panel (5) and be installed between cloche and the reflection lampshade (2), corresponding reflection lampshade (2) position is provided with sizable opening, and light passes through this opening to external exposure.