WO2008141493A1

WO2008141493A1 - A lamp adapter of led road lamp

Info

Publication number: WO2008141493A1
Application number: PCT/CN2007/002805
Authority: WO
Inventors: Boming Zhu; Jianjiang Sun; Haijun Chen
Original assignee: Ningbo Liaoyuan Industry Stock Co., Ltd.
Priority date: 2007-05-23
Filing date: 2007-09-24
Publication date: 2008-11-27
Also published as: CN100487301C; CN101059213A

Abstract

A lamp adapter of LED road lamp, comprising a lampshade (1) and LED groups (3). The lampshade (1) comprises an internal surface and an external surface, the shape of the internal surface is eudipleural about a centerline (5), a half of the symmetrical internal surface is composed of 4-12 flat plates (13), and any two adjacent flat plates (13) are provided on different planes. The LED groups (3) are mounted on the flat plates (13), heat radiators (4) are provided on the external surface of the lampshade (1), and the positions of the heat radiators (4) correspond to the positions of the flat plates (13) having LED groups (3) mounted thereon. Any two flat plates (13) having LED groups (3) mounted thereon have a certain space angle between them, and there are different included angles between respective the flat plates (13) and a bottom surface of the lampshade (1).

Description

LED street light lamp head

The invention relates to a street lamp base, in particular to a lamp lamp head with a light distribution design using LED illumination.

Background technique

The traditional street light source mainly uses high-pressure sodium lamp, high-pressure mercury lamp, fluorescent lamp, etc. These light sources are characterized by large volume, short life, poor heat dissipation performance, light glare and not enough softness, and high power consumption, which has caused great impact on the power grid. The burden does not meet the requirements of a modern energy-saving society; therefore, due to the small size, long life, and low power consumption of LEDs, some street lamps using LED lighting have emerged. However, the existing LED lamps for road lighting are basically arranged by a simple horizontal arrangement of several LEDs. For example, the Chinese patent (Patent No.: 200620101790. 3) discloses a high-power LED street lamp, including a heat sink base. At least three connected LED lamps are embedded in the concave bottom surface of the heat dissipation base, and a transparent cover is arranged around the recess of the heat dissipation base, and the strip heat dissipation body corresponding to the concave bottom surface of the heat dissipation base has a specially designed strip heat radiator, LED light The lamp cap is sleeved with a corresponding lens, and a lens fixing cover plate is interposed between the heat dissipation base and the transparent cover. The lens fixing cover plate has a lens hole corresponding to the LED lamp, and the lens end portion passes through the corresponding lens hole. Inlaying, LED lights are horizontally arranged on the concave bottom surface. Since a single LED emits direct light, it has a good condensing property. Therefore, if a plurality of LEDs are simply arranged horizontally, the LEDs will be illuminated. At one angle, the road cannot be fully illuminated, so that the lighting of these LEDs is required to achieve the light distribution required for road lighting through a reasonable light distribution design. Greatly reduced, did not play the greatest effectiveness of the use of LED, it will affect the lighting effects, but also improves the lamp power, resulting in a waste of energy. Summary of the invention

The present invention provides an LED street lamp base with good light distribution design, unique structure, full use of single LED function, and improved single LED use efficiency.

The technical solution of the present invention is realized as follows: an LED street lamp base comprises a lamp cover and an LED lamp set disposed in the lamp cover, the lamp cover comprises an inner surface and an outer surface, and the LED lamp group is disposed on the inner surface of the lamp cover , characterized in that the shape of the inner surface of the lampshade is bilaterally symmetrical along the center line, wherein the half of the symmetrical inner surface is composed of 4 to 12 flat plates, and any two adjacent planar plates are on different planes, LED The lamp group is fixed on the flat plate, and a heat sink corresponding to the position of the flat plate on the inner surface on which the LED lamp group is disposed is disposed on the outer surface of the lamp cover.

Preferably, the flat plate is arranged in a step-like manner on the left half and the right half of the inner surface of the lamp cover which are symmetric along the center line, and thereby forms an upper illumination band, a middle illumination band and a lower illumination band on either half of the cover. said lighting strip comprising two ladder-type arrangement around the planar board mounted LED lamp set (13a, 13b), the illumination strip comprises a flat plate mounted LED lamp set (13 _C), the The lighting strip consists of 5 flat panels (13d, 13e, 13f, 13g, 13h) with LED light groups (3) arranged in a circumferential stepped arrangement.

Preferably, the plane between the planes (13a, 13b) is between 15° and 25°, and the plane of the flat plates (13a, 13b) is at an angle of 30° to the bottom surface of the lampshade. 〜50°, the plane between the plane plate (13c) and the bottom surface of the lampshade is 5 ° ~ 15 °, between the planes of the adjacent flat plates (13d ₅ 13e, 13f, 13g ₅ 13h) The angle is 5 ° ~ 40. The flat plate (13d ₅ 13e, 13f _; 13 _gj 13h) is placed at an angle of 30° to 65° from the bottom surface of the lampshade.

In order to facilitate uniform installation and heat dissipation, it is preferable that the shape and size of the plates (13a, 13b, 13c, 13d, 13e, 13f, 13g, 13h) on which the LED lamp group is mounted are uniform.

Preferably, the heat sink is a single module. Preferably, the heat sink can be integrally molded with the lamp cover.

In order to enhance the overall aesthetic appearance, preferably, an inner cover is further disposed on the inner surface of the lampshade, and the inner cover has a light-emitting hole at a position corresponding to the LED lamp group.

Compared with the existing LED street lamp base, the invention has the following advantages: since the plane plates in which the LED lamps are mounted in the lamp cover are not in the same plane and any two plane plates form a certain spatial angle with each other, and the plane plate The angle with the bottom surface of the lampshade is also different, so that each LED lamp can illuminate different corners of the road surface. Taking Embodiment 1 as an example, the effect of the LED lamp group mounted on each flat panel on the road surface is as shown in FIG. 6. As shown in FIG. 7, each of the regions included in the irregular curve in FIG. 6 is a road surface region having substantially equal illuminance, and the entire region of the road surface illuminated by the lamp cap of the present invention is symmetrically divided into two parts, the right half. For example, in the road surface, the area is the area illuminated by the LED light group on the right half of the lampshade, and the illumination of the center of the road surface that can be illuminated by the LED light group disposed on the flat plate 13a is 21, which is set on the flat plate. The illuminance at the center of the road surface area that the LED light group on 13b can illuminate is 22, and the illuminance at the center of the road surface area that the LED light group provided on the flat plate 13c can illuminate is 31, which is set on the flat plate. The illuminance at the center of the road surface that the LED lamp group on 13d can illuminate is 31, and the illuminance at the center of the road surface region that the LED lamp group disposed on the flat plate 13e can illuminate is 13, and the LED provided on the flat plate 13f The illuminance at the center of the road surface where the lamp group can be illuminated is 13, and the illuminance at the center of the road surface region which the LED lamp group disposed on the flat plate 13g can illuminate is 12, and the LED lamp group provided on the flat plate 13h can The illuminance of the center of the illuminated road surface area is 11, and it can be seen that, in the case of a specific road surface, the LED street lamp body structure of the embodiment is used, and each LED lamp group illuminates different areas of a specific road surface, and each The center of the area has the strongest illumination, which improves the efficiency of the use of a single LED, and maximizes the effectiveness of the street lighting.

DRAWINGS Figure 1 is a schematic view showing the internal structure of the present invention;

Figure 2 is a rear view of Figure 1;

Figure 3 is a cross-sectional view taken along line A-A of Figure 1;

Figure 4 is a schematic structural view of a lampshade according to the present invention;

Figure 5 is an exploded view of the present invention;

6 is a simulation effect view of a lamp body irradiated with a road surface according to Embodiment 1 of the present invention;

Figure 7 is an enlarged view of a portion A in Figure 6;

Figure 8 is a simulation effect view of a lamp body irradiated with a road surface according to Embodiment 2 of the present invention;

Figure 9 is an enlarged view of a portion B in Figure 8;

Figure 10 is a simulation effect view of a lamp body irradiated with a road surface according to Embodiment 3 of the present invention;

Figure 11 is an enlarged view of a portion C in Figure 10 .

In the figure: 1, lampshade; 2, inner cover; 3, LED light group; 4, radiator; 5, center line; 9, upper lighting belt; 10, medium lighting belt; 11, lower lighting belt; ; 14, mounting holes; 15, light holes; 16, pavement.

detailed description

Specific embodiments of the invention are as follows:

Embodiment 1 : As shown in FIG. 1 and FIG. 2, an LED street lamp base according to the present invention has a lampshade 1 having a substantially turtle shell shape, the lampshade 1 is die-cast aluminum, and the lampshade 1 includes an inner surface. And the outer surface, on the inner surface of the lampshade 1, a plurality of LED light groups 3 are provided. The LED light group 3 includes a base, an LED lamp mounted on the base and a lens disposed outside the LED lamp. The shape of the inner surface of the globe 1 is bilaterally symmetrical along the center line 5. Taking the right half as an example, this part is composed of 8 flat plates 13, and the LED lamp group 3 is fixed on the flat plate 13. For the convenience of installation and uniform heat dissipation, the shape and size of the flat plate 13 on which the LED lamp group 3 is mounted are uniform. , any adjacent two flat panels 13 are at Different planes, and different spatial angles with each other; these flat plates 13 are arranged in a stepped manner, thereby forming an upper illumination strip 9, a middle illumination strip 10, and a lower illumination strip 11 on the right half, as shown in the figure. 3. As shown in FIG. 4, the upper lighting strip 9 includes two flat plates 13a and a flat plate 13b each having a left and right stepped arrangement in which the LED lamp group 3 is mounted. The plane between the plane in which the plane plate 13a is located and the plane in which the flat panel 13b is located is 18.7°, and the plane in which the plane plate 13a is located is at an angle of 44° to the bottom surface of the lampshade 1, and the plane in which the plane plate 13b is located is The bottom surface of the lampshade 1 has an angle of 35°, and the middle lighting strip 10 includes a flat plate 13c on which the LED lamp group 3 is mounted. The plane of the flat plate 13c is at an angle of 10° to the bottom surface of the lampshade 1, and the lower illumination is performed. The belt 11 comprises five flat plates 13d, a flat plate 13e, a flat plate 13f, a flat plate 13g, a flat plate 13h, and a flat plate and flat panel in which the flat plate 13d is placed, which are arranged in a circumferentially stepped arrangement. The angle between the planes where 13e is located is 35.4°, the angle between the plane in which the plane plate 13e is located and the plane in which the flat panel 13f is located is 9.8°, and the plane in which the plane plate 13f is located and the flat panel 13g are located. The angle between the planes is 13.6°, the angle between the plane in which the flat plate 13g is located and the plane in which the flat panel 13h is located is 8°, and the angle between the plane in which the flat plate 13d is located and the bottom surface of the lampshade 1 is 36. °, the plane between the plane of the flat plate 13e and the bottom surface of the lampshade 1 is 50°, and the plane of the flat plate 13f is flat. The angle with the bottom surface of the lampshade 1 is 58 °, the plane between the plane of the flat plate 13g and the bottom surface of the lampshade 1 is 58°, and the plane between the plane of the flat plate 13h and the bottom surface of the lampshade 1 is 50°. In this way, the light emitted by the LED lamp group 3 can be irradiated to different areas of the road surface, thereby improving the use efficiency of the single LED and improving the effect of the street surface of the street lamp.

On the outer surface of the lampshade 1, a heat sink 4 corresponding to the position of the flat plate 13 on the inner surface on which the LED lamp group 3 is disposed is provided. The heat sink 4 is a single module, which is fixed by the heat dissipation base and vertically fixed to the heat dissipation base. A plurality of fins are formed, two screw holes (not visible in the figure) are provided on the heat sink 4, and two jacks (not visible in the figure) are provided on the flat plate 13 provided with the LED lamp group 3, LED light group 3 is provided with two through holes (not visible in the figure), the through holes correspond to the positions of the jacks, and the screw holes also correspond to the positions of the jacks, and the screws pass through the flat plates 13 through the through holes in the LED lamp group 3. The upper jack fixes the LED lamp group 3 on the flat plate 13, the screw passes through the jack and then passes through the screw hole of the heat sink 4, and then fixes the heat sink 4 with a nut, and the heat sink 4 can also directly contact the lamp cover 1 Casting into one. In order to make the appearance of the lampshade 1 beautiful, an inner cover 2 is further mounted on the inner surface of the lampshade 1, and a light exit hole 15 is formed in the inner cover 2 at a position corresponding to the LED light group 3, and the light exit hole 15 is opened. The size and shape match the LED lights.

The lampshade 1 is further provided with a mounting hole 14 for fixing the lampshade 1 in the lamp. Due to the specific lighting requirements of the road, the LED lamp group 3 does not cover the inner surface of the entire lampshade 1, but only the segment is The front half of the inner surface of the globe 1 enhances the overall appearance of the globe 1 and the overall force balance. The rear half of the globe 1 is also connected by a plurality of flat panels 13, and may of course have other shapes such as a rounded curved surface.

The effect of the LED lamp group 3 on the lampshade 1 illuminating the road surface 16 is as shown in FIG. 6 and FIG. 7. Each of the regions included in the irregular curve in FIG. 6 is a road surface region having substantially equal illuminance, and the present invention is The entire area of the road surface illuminated by the lamp head is symmetrically divided into two parts, the left half road surface is taken as an example, this area is the area irradiated by the LED lamp group 3 of the right half of the lampshade 1, and the LED provided on the plane board 13a. The illuminance at the center of the road surface region to which the lamp group 3 can be illuminated is 21, and the illuminance at the center of the road surface region which the LED lamp group 3 provided on the flat plate 13b can illuminate is 22, and the LED lamp group provided on the flat plate 13c The illuminance of the center of the road surface that can be irradiated is 31, and the illuminance of the center of the road surface area which the LED lamp group 3 provided on the flat plate 13d can illuminate is 31, and the LED lamp group 3 provided on the flat plate 13e The illuminance at the center of the road surface area that can be irradiated is 13, and the illuminance at the center of the road surface region which the LED lamp group 3 provided on the flat plate 13f can illuminate is 13, and the LED lamp group 3 provided on the flat plate 13g can illuminate The illumination at the center of the pavement area is 12, which is set on the flat panel. The illuminance at the center of the road surface area that the LED lamp group 3 on 13h can illuminate is 11, and the other illuminance values shown in Fig. 6 are the illuminance superimposed values of the LED lamp group 3 in this area, so that it can be seen In the case of a specific road surface, the LED street lamp body structure of the embodiment is used, and each LED lamp group 3 respectively illuminates different regions of a specific road surface, and the central illumination of each region is the strongest, and the illumination at the junction of the regions For the illumination of several LED light groups 3 in this area, the efficiency of using a single LED is improved, and the maximum effect is enhanced, and the effect of the street surface of the street lamp is improved.

The above is only a preferred embodiment of the present invention, mainly based on the illumination requirements of a particular road surface to design the number of planar panels and the angles between them, so that those skilled in the art can describe the specific The present invention is to be construed as being limited by the scope of the invention or the scope of the appended claims.

Embodiment 2: As shown in FIG. 1 and FIG. 2, an LED street lamp base according to the present invention has a lampshade 1 having a substantially turtle shell shape, and the lampshade 1 is die-cast aluminum, and the lampshade 1 includes an inner surface. And the outer surface, on the inner surface of the lampshade 1, a plurality of LED light groups 3 are provided. The LED light group 3 includes a base, an LED lamp mounted on the base and a lens disposed outside the LED lamp. The shape of the inner surface of the globe 1 is bilaterally symmetrical along the center line 5. Taking the right half as an example, this part is composed of 8 flat plates 13 which are fixed on the flat plate 13. For the purpose of easy installation and heat dissipation, the shape and size of the flat plate 13 on which the LED lamp group 3 is mounted are both Consistently, any two adjacent planar plates 13 are on different planes and have different spatial angles with each other; these planar plates 13 are arranged in a step-like manner, thereby forming an upper illumination strip 9 on the right half. , the middle lighting belt 10, the lower lighting belt 11, as shown in FIG. 3 and FIG. 4, the upper lighting belt 9 includes two flat plates 13a and a flat plate each having an LED lamp group 3 arranged in a left-right stepped arrangement. 13b. The plane and flat panel 13b where the flat plate 13a is located The angle between the planes is 14.7°, the plane between the plane of the flat plate 13a and the bottom surface of the lampshade 1 is 44°, and the plane between the plane of the flat plate 13b and the bottom surface of the lampshade 1 is 37°. The middle lighting strip 10 includes a flat plate 13c on which the LED lamp set 3 is mounted, the plane in which the flat plate 13c is located is at an angle of 17° to the bottom surface of the lamp cover 1, and the lower lighting strip 11 includes five circumferentially arranged steps. The plane between the plane plate 13d, the plane plate 13e, the plane plate 13f, the plane plate 13 g, the plane plate 13h, the plane in which the plane plate 13d is located, and the plane in which the plane plate 13d is located is 33.3 °, the plane between the plane where the plane plate 13e is located and the plane where the flat panel 13f is located is 9. The angle between the plane where the plane plate 13f is located and the plane where the flat panel 13g is located is 2.7°. The plane between the plane in which the plane plate 13g is located and the plane in which the flat panel 13h is located is 5.5°, the plane in which the plane plate 13d is located and the bottom surface of the lampshade 1 are 34°, and the plane in which the plane plate 13e is located is The angle of the bottom surface of the lampshade 1 is 50°, and the plane between the plane of the flat plate 13f and the bottom surface of the lampshade 1 is 59 °, flat The angle between the plane where the plate 13g is located and the bottom surface of the lampshade 1 is 60°, and the angle between the plane where the flat plate 13h is located and the bottom surface of the lampshade 1 is 53°, so that the light emitted by the LED lamp group 3 can be irradiated to the road surface. Different areas, thereby improving the efficiency of the use of a single LED, and improving the effect of the street surface of the street lamp.

On the outer surface of the lampshade 1, a heat sink 4 corresponding to the position of the flat plate 13 on the inner surface on which the LED lamp group 3 is disposed is provided. The heat sink 4 is a single module, which is fixed by the heat dissipation base and vertically fixed to the heat dissipation base. A plurality of heat sinks are formed, and two screw holes (not visible in the figure) are disposed on the heat sink 4, and two jacks (not visible in the figure) are disposed on the flat plate 13 provided with the LED lamp group 3. There are two through holes (not visible in the figure) on the LED lamp group 3. The through holes correspond to the positions of the jacks, and the screw holes also correspond to the positions of the jacks. The screws pass through the through holes in the LED lamp group 3. The socket on the flat plate 13 fixes the LED lamp group 3 on the flat plate 13, and the screw passes through the socket and then passes through the screw hole of the heat sink 4, and then fixes the heat sink 4 with a nut, and the heat sink 4 can also Directly integrated with the lampshade 1, as shown in Figure 5. In order to make the appearance of the lampshade 1 beautiful, an inner cover 2 is further mounted on the inner surface of the lampshade 1, and a light exit hole 15 is formed in the inner cover 2 at a position corresponding to the LED lamp group 3, and the light is emitted. The aperture 15 is sized and shaped to match the LED light.

The effect of the LED lamp group 3 on the lampshade 1 illuminating the road surface 16 is as shown in Figs. 8 and 9. The road surface includes a sidewalk and a main passage, and each of the regions included in the irregular curve in Fig. 8 has substantially equal illuminance. In the road surface area, the entire area of the road surface illuminated by the lamp cap of the present invention is roughly symmetrically divided into two parts, the left half road surface is taken as an example, and the area is the area irradiated by the LED lamp group 3 on the right half of the lamp cover 1, The illuminance at the center of the road surface area to which the LED lamp group 3 provided on the flat plate 13a is irradiated is 21, and the illuminance at the center of the road surface region which the LED lamp group 3 provided on the flat plate 13b can illuminate is 22, which is The illuminance at the center of the road surface area to which the LED lamp group 3 on the flat plate 13c can be irradiated is 31, and the illuminance at the center of the road surface region which the LED lamp group 3 provided on the flat plate 13d can illuminate is 31, which is set on the flat plate. The illuminance at the center of the road surface area to which the LED lamp group 3 on the 13e is irradiated is 13, and the illuminance at the center of the road surface region which the LED lamp group 3 provided on the flat plate 13f can illuminate is 13 and is provided on the flat plate 13g. Photograph of the center of the road surface that the LED light group 3 can illuminate 12, the illuminance of the center of the road surface area which the LED lamp group 3 provided on the flat plate 13h can illuminate is 11, and the other different illuminance values shown in FIG. 8 are the illuminances of the LED lamp group 3 in this area. The superimposed values, it can be seen that, in the case of a specific road surface, the LED street lamp body structure of the embodiment is used, and each of the LED lamp groups 3 respectively illuminate different areas of a specific road surface. The illuminance of the center of each area is the strongest, and the illuminance at the junction of the area is the illuminance of several LEDs 3 in this area, which improves the efficiency of using a single LED, and maximizes the efficiency. The effect of street lamp lighting on the road surface.

Embodiment 3: As shown in FIG. 1 and FIG. 2, an LED street lamp base according to the present invention has a lampshade 1 having a substantially turtle shell shape, and the lampshade 1 is die-casted from aluminum, and the lampshade 1 includes an inner surface. And the outer surface, on the inner surface of the lampshade 1, a plurality of LED light groups 3 are provided. The LED light group 3 includes a base, an LED lamp mounted on the base and a lens disposed outside the LED lamp. The shape of the inner surface of the globe 1 is bilaterally symmetrical along the center line 5. Taking the right half as an example, this part is composed of 8 flat plates 13, and the LED lamp group 3 is fixed on the flat plate 13. For the convenience of installation and uniform heat dissipation, the shape and size of the flat plate 13 on which the LED lamp group 3 is mounted are uniform. Any two adjacent planar plates 13 are on different planes and have different spatial angles with each other; the planar plates 13 are arranged in a stepped manner, thereby forming an upper illumination strip 9 on the right half. The middle illuminating strip 10 and the lower illuminating strip 11 are as shown in FIG. 3 and FIG. 4, and the upper illuminating strip 9 includes two flat plates 13a and a flat plate 13b each having an LED lamp group 3 arranged in a left-right stepped arrangement. . The angle between the plane in which the plane plate 13a is located and the plane in which the flat panel 13b is located is 27.6°, the plane where the plane plate 13a is located and the bottom surface of the lampshade 1 are 5 Γ, and the plane and the lampshade where the plane plate 13b is located The angle of the bottom surface of 1 is 37°, and the middle illumination strip 10 includes a flat plate 13c on which the LED lamp group 3 is mounted. The plane of the flat plate 13c is at an angle of 18° to the bottom surface of the lamp cover 1, and the lower illumination band 11 includes 5 circumferentially arranged steps The angle between the plane on which the plane plate 13d of the LED lamp group 3 is mounted, the plane plate 13e, the plane plate 13f, the plane plate 13g, the plane plate 13h, the plane where the plane plate 13d is located, and the plane in which the flat panel 13e is located is 42.2 °, the plane between the plane where the plane plate 13e is located and the plane where the flat panel 13f is located is 8.9°, and the angle between the plane where the plane plate 13f is located and the plane where the flat panel 13g is located is .20.4°. The plane between the plane in which the flat plate 13g is located and the plane in which the flat panel 13h is located is 9.7°, and the plane in which the flat plate 13d is located is at an angle of 45° to the bottom surface of the lampshade 1, and the plane in which the flat plate 13e is located is The angle of the bottom surface of the lampshade 1 is 47°, and the angle between the plane in which the flat plate 13f is located and the bottom surface of the lampshade 1 is 55. The angle between the plane where the flat plate 13g is located and the bottom surface of the lampshade 1 is 6 Γ, and the angle between the plane where the flat plate 13h is located and the bottom surface of the lamp cover 1 is 55°, so that the light emitted by the LED lamp group 3 can be illuminated. The different areas of the road surface improve the efficiency of the use of a single LED and improve the lighting effect of the street lamp head.

On the outer surface of the lampshade 1, a heat sink 4 corresponding to the position of the flat plate 13 on the inner surface on which the LED lamp group 3 is disposed is provided. The heat sink 4 is a single module, which is fixed by the heat dissipation base and vertically fixed to the heat dissipation base. A plurality of fins are formed, two screw holes (not visible in the figure) are provided on the heat sink 4, and two jacks (not visible in the figure) are provided on the flat plate 13 provided with the LED lamp group 3, The LED lamp group 3 is provided with two through holes (not visible in the figure), the through holes correspond to the positions of the jacks, and the screw holes also correspond to the positions of the jacks, and the screws pass through the through holes in the LED lamp group 3 The jack on the flat plate 13 fixes the LED lamp set 3 on the flat plate 13, the screw passes through the jack and then passes through the screw hole of the heat sink 4, and then fixes the heat sink 4 with a nut, and the heat sink 4 can also be directly Casting integrally with the lampshade 1, as shown in FIG. 5, in order to make the lampshade 1 beautiful in appearance, an inner cover 2 is also mounted on the inner surface of the lampshade 1, and the inner cover 2 is on the LED lamp set 3 A light exit hole 15 is formed at the corresponding position, and the size and shape of the light exit hole 15 are matched with the LED lamp.

A mounting hole 14 is further disposed on the lamp cover 1 for fixing the lamp cover 1 in the lamp, due to The specific lighting requirements of the road, so that the LED lamp group 3 does not cover the inner surface of the entire lampshade 1, but only the first half of the inner surface of the lampshade 1, in order to enhance the overall aesthetic appearance of the lampshade 1 and the overall force balance, the lampshade The rear half of 1 is also connected to a plurality of flat plates 13 and may of course be other shapes such as a rounded curved surface.

The effect of the LED lamp group 3 on the lampshade 1 illuminating the road surface 16 is as shown in Figs. 10 and 11, and each of the regions included in the irregular curve in Fig. 10 is a road surface region having substantially equal illuminance, which will be the present invention. The entire area of the road surface illuminated by the lamp head is symmetrically divided into two parts, the left half road surface is taken as an example, this area is the area irradiated by the LED lamp group 3 of the right half of the lampshade 1, and the LED provided on the plane board 13a. The illuminance at the center of the road surface region to which the lamp group 3 can be illuminated is 21, and the illuminance at the center of the road surface region which the LED lamp group 3 provided on the flat plate 13b can illuminate is 22, and the LED lamp group provided on the flat plate 13c The illuminance of the center of the road surface that can be irradiated is 31, and the illuminance of the center of the road surface area which the LED lamp group 3 provided on the flat plate 13d can illuminate is 31, and the LED lamp group 3 provided on the flat plate 13e The illuminance at the center of the road surface area that can be irradiated is 13, and the illuminance at the center of the road surface region which the LED lamp group 3 provided on the flat plate 13f can illuminate is 13, and the LED lamp group 3 provided on the flat plate 13g can illuminate To the center of the pavement area The degree is 12, and the illuminance at the center of the road surface region to which the LED lamp group 3 disposed on the flat plate 13h can be illuminated is 11, and the other different illuminance values shown in FIG. 10 are in the region of the LED lamp group 3. The illuminance superimposed value, it can be seen that, in the specific road surface condition, the LED street lamp body structure of the embodiment is used, and each LED lamp group 3 respectively illuminates different regions of a specific road surface, and the center illumination of each region is the strongest. And the illuminance at the junction of the area is the illuminance of several LED light groups 3 in the area here, which improves the use efficiency of the single LED, and exerts the maximum effect, and improves the effect of the street surface of the street lamp.

The above is only a preferred embodiment of the present invention, mainly based on the lighting requirements of a particular road surface. The number of planar plates and the angles between them are designed, so that those skilled in the art can make various modifications or additions to the specific embodiments described or replace them in a similar manner, but The scope of the present invention is not deviated from the scope of the invention as defined by the appended claims.

Claims

Rights request

The LED street lamp lamp head is composed of a lamp cover (1) and an LED lamp group (3) disposed in the lamp cover (1), the lamp cover (1) includes an inner surface and an outer surface, and the LED lamp group (3) is provided. On the inner surface of the lampshade (1), characterized in that the shape of the inner surface of the lampshade (1) is bilaterally symmetrical along the center line (5), wherein the half of the symmetrical inner surface is made up of 4-12 ± 夬 flat plates (13) Constituting that any two adjacent planar plates (13) are on different planes, the LED lamp group (3) is fixed on the flat plate (13), and the inner surface is provided on the outer surface of the lamp cover (1) The heat sink (4) corresponding to the position of the flat plate (13) of the LED lamp group (3) is provided.

The LED street lamp base according to claim 1, characterized in that the flat plate (13) is stepped on the inner surface of the lamp cover (1) along the center line (5) symmetrically on the left half and the right half. Forming, and thus forming an upper illuminating strip (9), a middle illuminating strip (10), a lower illuminating pedicle (11) on either half, said upper illuminating strip (9) comprising two left and right stepped arrangements The flat panel (13a, 13b) is mounted with an LED lamp set (3), the middle illumination strip (10) comprises a flat panel (13c) on which the LED lamp set (3) is mounted, and the lower illumination strip (11) comprises 5 A planar plate (13d, 13e, 13f, 13g, 13h) in which the LED lamp group (3) is mounted in a circumferentially stepped manner.

The LED street lamp base according to claim 2, characterized in that the plane between the planes (13a, 13b) is between 15° and 25°, and the flat plates (13a, 13b) The angle between the plane and the bottom surface of the lampshade (1) is 30° - 50°, and the plane between the plane of the flat plate (13c) and the bottom surface of the lampshade (1) is 5° to 15°, adjacent The angle between the planes of the flat plates (13d, 13e, 13f, 13g, 13h) is 5° ~ 40°, and the plane and lampshade where the flat plates (13d, 13e, 13f, 13g, 13h) are located (1 The angle of the bottom surface is 30 ° ~ 65 °. The LED street lamp base according to claim 1 or 2 or 3, characterized in that the shape and size of the flat plate (13) of the LED lamp set (3) are mounted on the inner surface of the lamp cover (1). All are consistent.

The LED street lamp cap according to claim 1, characterized in that the heat sink (4) is a single module.

A LED street lamp base according to claim 1, wherein said heat sink (4) is integrally molded with the lamp cover (1).

The LED street lamp base according to claim 1, characterized in that the inner surface of the lamp cover (1) is further provided with an inner cover (2), the inner cover (2) and the LED light group (3) A light exit hole (15) is opened at the corresponding position.