CN211344984U

CN211344984U - Low-position lamp

Info

Publication number: CN211344984U
Application number: CN202020275100.6U
Authority: CN
Inventors: 霍永峰
Original assignee: Chengdu Hengkun Optical Electronic Technology Co ltd
Current assignee: Chengdu Hengkun Optical Electronic Technology Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-08-25
Anticipated expiration: 2030-03-06

Abstract

The utility model relates to the technical field of road lighting, in particular to a low-position lamp, which comprises a lamp body (31), a power supply and a light source (32); the power supply is arranged in the lamp body (31) and used for supplying power to the light source (32); the light source (32) is mounted on the lamp body (31); the light source (32) comprises several light source assemblies (4), each light source assembly (4) comprising LED particles (43) and a lens (41); the maximum light-emitting angle of the light source component (4) is larger than 85 degrees. The illumination of the low-position lamp irradiation area is more uniform, and the driver can observe the road conditions on the two sides of the road conveniently.

Description

Low-position lamp

Technical Field

The utility model relates to a road lighting technology field, concretely relates to low level lamp.

Background

Along with the development of cities, more and more viaducts, overpasses and the like in the cities are required to be provided, including a plurality of high-speed rails and ramps of airports, and the traditional high-pole lamps or street lamps are generally adopted for illumination originally, but the high-pole lamps are large in glare, serious in light pollution, inconvenient to construct and the like. The current common solution is to use a low-level lighting lamp installed at the entrance and exit of the viaduct, the interchange hub and the tunnel to solve the above problems. The low-level lighting is adopted, and the integrated coordination of the architectural landscape is not damaged, so that the system has the functions of road lighting and road protection; the driving guide and the safety are ensured; the lighting direction is strictly controlled, the ambient light environment is not influenced, the maintenance and the like are convenient, and the LED lamp is more and more widely used.

The existing low-position lamps are installed on guardrails on two sides of a bridge, provide illumination for a road in the middle of the bridge, and can provide illumination for the road through angle adjustment in the vertical direction. As shown in fig. 1, the existing low level lamps (10, 20) are correspondingly installed on the guardrails (11, 12) at both sides of the bridge, the light beam is irradiated towards the middle of the road, and the illumination intensity is higher in the middle area (100) of the road; areas (101, 102) below the low-level lamps on both sides of the road near the low-level lamps have low illumination, and form dark spots.

Such unevenness of illuminance causes visual error of a driver. When the two sides of the road are pedestrian roads, the pedestrian conditions on the two sides of the road can not be observed by the driver.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the low-position lamp is provided aiming at the problems of uneven road illumination and dark spot area in the prior art when the low-position lamp is used for lighting. The low-level lamp respectively guides the light of the same light source to the middle of a road and below the low-level lamp through the lens, so that the illumination of the whole road surface is more uniform, and the uniformity is not changed due to the attenuation of the light source.

In order to realize the purpose, the utility model discloses a technical scheme be:

a low-position lamp comprises a lamp body, a power supply and a light source;

the power supply is arranged in the lamp body and used for supplying power to the light source;

the light source is arranged on the lamp body; the light source comprises a plurality of light source components, and each light source component comprises LED particles and a lens; the maximum light-emitting angle of the light source component is larger than 85 degrees.

The light-emitting angle of the LED particles is about 5-20 degrees, and the light spots are circular; after light rays emitted by the LED particles pass through the lens, the light spots become similar to ellipses, the light-emitting angles in different directions are different, and the angle in the long axis direction of the light spots is the largest; the light-emitting angle of the light source component is an included angle between two directions which are perpendicular to the central line of the LED particle light beam and have the light intensity equal to 10% of the maximum light intensity.

When the maximum light-emitting angle is larger than 85 degrees, the projection area of the light source component is increased. The illuminated range is larger.

As a preferred embodiment of the present invention, the first,

the light rays emitted by the LED particles are divided into a first part of light rays and a second part of light rays after passing through the lens; the intensity ratio of the first part of light to the second part of light is 30 percent to 70 percent to 30 percent.

The first part of light is projected to the middle area of the road after passing through the lens, and the second part of light is projected to the area below the low-position lamp after passing through the lens.

Through setting up lens, shine the second part of the light of LED granule to low level lamp below region for the light in this region increases, and whole road illuminance is more even. The driver can observe the road conditions on the two sides of the road. Meanwhile, the light is uniformly irradiated on a road area by the lens, and the adopted light source is the same light source, so that the condition that an extra light source is adopted to irradiate the area below the low-position lamp is avoided. And illumination difference caused by different attenuations of a plurality of light sources after long-term use is avoided.

According to the width of the irradiated road surface and the requirement on the light distribution of the road surface, the proportion of the light projected to the middle area of the road and the area below the low-level lamp is adjusted by adjusting the proportion of the first part of light and the second part of light, so that the illumination distribution meets the design requirement.

As the preferable scheme of the utility model, the intensity ratio of the first part of light to the second part of light is 50% to 50%.

As a preferred scheme of the present invention, the light source further comprises a panel, a circuit board, a fixing frame, a heat sink, and a side fixing member; the light source assembly is arranged on the circuit board; the fixing frame and the side fixing piece are used for fixing the circuit board and the radiating fin on the lamp body.

The combination of the above components makes the low-position lamp easier to assemble and maintain.

As the preferred scheme of the utility model, the low-position lamp also comprises a fixed frame; the fixing frame is used for installing the lamp body on the guardrail.

As the utility model discloses a preferred scheme, the lamp body with the mount rotates to be connected, the lamp body throws the angle to the road surface and can adjust.

As a preferred embodiment of the present invention, the lens has a bottom surface and a connecting surface; the connecting surface divides the lens into a first lens and a second lens;

the first lens comprises a first incident surface, a first reflecting surface and a first emergent surface;

the second lens comprises a second incident surface and a second emergent surface;

the first incident surface and the second incident surface are both disposed on the bottom surface,

the first part of light enters the lens after passing through the first incident surface, reaches the first emergent surface after being reflected by the first reflecting surface, and is refracted out of the lens through the first emergent surface;

and the second part of light enters the lens after passing through the second incident surface and is refracted out of the lens through the second emergent surface.

The utility model provides a first lens and second lens can be two solitary lenses. Preferably, the first lens and the second lens are integrally formed; the connecting section of the first lens and the second lens is a virtual connecting surface.

As the preferred scheme of the utility model, the first emergent face with the contained angle of connecting the face is 90-105 degrees.

The included angle formed by the first emergent face and the virtual connecting face is 90-105 degrees, so that when the virtual connecting face is in the horizontal direction, the light rays emitted by the first emergent face incline downwards, and the first part of light rays can be effectively projected to the road surface.

As the preferred scheme of the utility model, first emitting surface is equipped with a plurality of protruding units.

The light is diffused by arranging the convex unit, and the light distribution is more uniform.

As a preferable embodiment of the present invention, the first exit surface (503) is an arcuate surface, and the arcuate chord is an exit surface chord (403); the protrusion unit comprises a first type protrusion and a second type protrusion;

the exit surface is provided with a concentric circular arc, and the concentric circular arc divides the cambered surface into a cambered first area and a fan-shaped second area;

the first type of bulge is positioned in the first area;

the second type of bulge is positioned in the second area;

the length of the first type of protrusions is smaller than the length of the second type of protrusions in a direction perpendicular to the exit surface chord.

By arranging the convex units, the arc shape of the convex units in the long axis direction realizes the diffusion of light in the irradiation direction; the arc shape of the short axis direction of the convex unit realizes the diffusion of light in the direction perpendicular to the irradiation direction. By making the length of the first type of protrusions smaller than the length of the second type of protrusions, the diffusivity of light rays far away in the direction of illumination is smaller than the diffusivity of light rays near in the direction of illumination. The light rays at the closer part are dispersed more fully, and the light rays at the farther part are dispersed less, so that the illumination of the illumination area projected by the first part of light rays is more uniform in the light projection direction.

As a preferred embodiment of the present invention, the cross section of the protrusion unit along the long axis direction is a first arc shape;

the radian of the first arc of the first type of bulge is larger than that of the first arc of the second type of bulge.

The radian of the first arc of the first type of bulge is larger, so that the dispersion degree of the light rays at the closer position in the projection direction is larger; the radian of the first arc of the second type of protrusion is small, so that the dispersion degree of farther light rays in the projection direction is relatively small. Further, the illumination of the illumination area projected by the first part of light rays is more uniform in the light ray projection direction.

As a preferable aspect of the present invention, a cross section of the protrusion unit in a direction parallel to the emitting surface chord is a second arc shape;

the radian of the second arc of the first type of bulge is greater than the radian of the second arc of the second type of bulge.

The second arc radian of the first type of bulges is larger, so that the dispersion degree of the light rays at the closer position to the left and right in the direction vertical to the projection direction is larger; the radian of the second arc of the second type of protrusion is small, so that the degree of dispersion of farther light rays to the left and right in the direction perpendicular to the projection direction is relatively small. The illumination of the illumination area projected by the first part of light rays is more uniform in the transverse direction perpendicular to the light ray projection direction.

As a preferable aspect of the present invention, the concentric circular arcs may be one or more, and in the case of a plurality of concentric circular arcs, the plurality of concentric circular arcs divide the first exit surface into an arcuate region and a plurality of sector regions sequentially away from the arcuate region, and extend outward from the arcuate region. The protrusions are respectively arranged in the arch area and the fan-shaped area.

As a preferred embodiment of the present invention, the second emitting surface is a matte surface.

Through the setting of hair side, with second part light dispersion more even, avoid dazzling light.

As a preferred embodiment of the present invention, the lens further includes a positioning device, and the positioning device is disposed on the bottom surface.

The lens and the light source are relatively fixed through the positioning device, and the installation is convenient; avoiding position changes during movement.

As a preferable scheme of the present invention, the light source assembly further includes a lens fixing member for mounting the lens on a circuit board of the light source; the lens fixing piece is provided with a shading part. The light shield can shield the lateral light of the first lens.

Through setting up the lens hood, avoid light to kick into driver's eyes, improve driver's security.

As the preferred embodiment of the present invention, the shading portion is perpendicular to the direction of the connecting surface, exceeds the connecting surface, and extends toward the second lens direction.

As a preferred embodiment of the present invention, the shading portion is in the first emergent surface emergent light direction, and exceeds the first emergent surface.

As a preferable embodiment of the present invention, the light shielding angle between the light shielding portion edge and the first exit surface is 5 to 30 degrees.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a low level lamp through setting up lens, is divided into two parts with the light that the LED granule sent, and partly throws to road middle zone, and partly projects low level lamp below region, and whole road illuminance is more even, is favorable to the driver to observe the road conditions of road both sides.

2. The utility model discloses a low level lamp, the light source of adoption be same light source, have avoided adopting extra light source to shine low level lamp below region, the cost is reduced. And illumination difference caused by different attenuations of a plurality of light sources after long-term use is avoided.

3. The utility model discloses a low-position lamp through set up protruding unit on first emitting surface, has realized that the light distribution of projecting road middle zone is more even.

4. The utility model discloses a low-position lamp is through setting up the lens hood to and set up projecting direction and decurrent extension at first partial light of lens hood, make light be difficult for shining highly lower driver's eyes, improved driver's security.

Drawings

FIG. 1 is a schematic view of a conventional low-position light ray projection.

Fig. 2 is a schematic structural diagram of the low-position lamp of the present invention.

Fig. 3 is a schematic view of the light source arrangement of the low-position lamp of the present invention.

Fig. 4 is an exploded view of the low-level lamp of the present invention.

Fig. 5 is an assembly schematic diagram of the light source assembly of the present invention.

Fig. 6 is an enlarged schematic view of fig. 5 at circle.

Fig. 7 is a schematic view of the lens structure of the present invention.

Fig. 8 is a schematic diagram of the lens of the present invention after being divided.

Fig. 9 is a schematic view of the light path of the present invention.

Fig. 10 is a schematic view of the arrangement of the protrusions on the first emitting surface of the present invention.

Fig. 11 is a convex schematic view of the exit surface of the present invention.

Fig. 12 is an enlarged schematic view of fig. 11 at a circle.

Fig. 13 is an enlarged schematic view of fig. 12 at the circle.

Fig. 14 is a schematic view of the light shielding portion and the first exit face angle.

Fig. 15 is a schematic view of the structures of the light-shielding portion and the first emission surface in embodiment 2.

Icon: 11, 12-guardrails; 100-road middle zone; 101, 102-area under low level lamp; 10, 20-existing low-level lamps; 31-a lamp body; 311-a panel; 32-a light source; 322-a circuit board; 323-fixed mount; 324-a heat sink; 325-side fixing member; 33-a mounting frame; 4-a light source assembly; 41-a lens; 42-a lens mount; 421-light shielding part; 4211-contact point a; 4212-contact point B; 4213-vertex C; 43-LED particles; 44-positioning holes; 411-first lens; 412-a second lens; 413-a positioning projection; 401-bottom surface; 402-virtual connectivity plane; 403-exit face chord; 501-a first incidence plane; 502-a first reflective surface; 503-a first exit face; 601-a second entrance face; 603-a second exit face; 801 — a first region; 802 — a second region; 901-a second arc of the first type of protrusion; 902 a second arc of a second type of projection; 903 — first arc of first type of lobe.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

A low-level lamp, as shown in fig. 2-5, comprises a lamp body 31, a power supply and a light source 32; the power supply is installed in the lamp body 31 and used for supplying power to the light source 32; the light source 32 is mounted on the lamp body 31. The light source 32 comprises several light source assemblies 4, each light source assembly 4 comprising LED particles 43 and a lens 41; the light emitted by the LED particles 43 includes a first portion of light and a second portion of light; the first part of light is projected to the road middle area 100 after passing through the lens, and the second part of light is projected to the area 101/102 below the low-level lamp after passing through the lens. The ratio of the intensity of the first part of light to the intensity of the second part of light is 50% to 50%. The light source further comprises a panel 311, a circuit board 322, a fixing frame 323, a heat sink 324 and a side fixing member 325; the light source assembly 4 is mounted on the circuit board 322; the fixing frame 323 and the side fixing member 325 are used to fix the circuit board 322 and the heat sink 324 to the lamp body 31. The low-position lamp also comprises a fixed frame 33; the fixing frame 33 is used for mounting the lamp body on the guardrail. The lamp body 31 is rotatably connected with the fixing frame 33, and the projection angle of the lamp body 31 to the road surface can be adjusted. After the lamp body 31 is rotated to a proper position, the relative position between the lamp body 31 and the fixing frame 33 is locked by the fixing screw.

As shown in fig. 5-10, each light source assembly 4 includes LED particles 43 and a lens 41; the LED particles 43 are fixed on a circuit board 322, a positioning hole 44 is arranged on the circuit board 322, the lens 41 is provided with a positioning protrusion 413, and the positioning protrusion 413 is matched with the positioning hole 44. The lens holder 42 fixes the lens 41 to the circuit board 322. Fig. 5 and 6 are schematic views of a partially assembled structure.

The lens 41, as shown in fig. 7-10, has a bottom surface 401 and a connecting surface 402; the connecting surface connects the lens 41 to the first lens 411 and the second lens 412;

the first lens 411 comprises a first incident surface 501, a first reflecting surface 502 and a first emergent surface 503; the second lens 412 includes a second incident surface 601, a second exit surface 603; the first entrance face 501 and the second entrance face 601 are both arranged on the bottom surface 401 of the lens 41,

the first part of light enters the lens 41 after passing through the first incident surface 501, reaches the first exit surface 503 after being reflected by the first reflecting surface 502, and is refracted out of the lens 41 through the first exit surface 503; the second part of the light enters the lens 41 after passing through the second incident surface 601, and is refracted out of the lens through the second exit surface 603.

In this embodiment, the first lens 411 and the second lens 412 are integrally formed. The connection plane 402 is a virtual connection plane. The included angle between the first exit surface 503 and the connection surface 402 is 100 degrees.

As shown in fig. 10 to 14, the first exit surface 503 is provided with a plurality of protruding units, and the edges of the protruding units are rectangular; the first exit surface 503 is an arcuate surface, and the chord of the arcuate surface is an exit surface chord 403; the long axis of the protruding elements is perpendicular to the exit face chord 403. The protrusion unit comprises a first type protrusion and a second type protrusion; the emergent surface is provided with concentric arcs which divide the cambered surface into a first cambered area 801 and a second sectorial area 802; the first type of projections are located in the first area 801; the second type of protrusions are located in the second region 802; the length of the first type of projections is less than the length of the second projections.

The cross section of the protruding unit along the long axis direction of the rectangle is in a first arc shape; the arc of the first arc 903 of the first type of protrusion is greater than the arc of the first arc of the second type of protrusion. The cross section of the convex unit in the direction parallel to the chord of the emergent surface is in a second arc shape; the arc of the second arc 901 of the first type of protrusion is greater than the arc of the second arc 902 of the second type of protrusion.

The second emitting surface 603 is a rough surface. Through the setting of hair side, with second part light dispersion more even, avoid dazzling light.

As shown in fig. 14, the lens holder 42 is provided with a light shielding portion 421. The light shielding portion 421 protrudes from the first emission surface 503 in the direction in which the light is emitted from the first emission surface 503.

The lens holder 42 and the first exit face 503 form two contact points: contact point a4211 and contact point B4212. The edge of the light shielding portion 421 has a vertex C4213. The angle BAC formed by the three points is the shading angle. The light shielding angle between the edge of the light shielding part (421) and the first emergent surface (503) is 5-30 degrees.

Example 2

In this embodiment, the light shielding portion 421 is improved in addition to embodiment 1. As shown in fig. 15, the lens holder 42 is provided with a light shielding portion 421. The light shielding portion 421 extends in a direction perpendicular to the connection surface 402, beyond the connection surface 402, and toward the second lens 412.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A low-position lamp, characterized by comprising a lamp body (31), a power supply and a light source (32);

the power supply is arranged in the lamp body (31) and used for supplying power to the light source (32);

the light source (32) is mounted on the lamp body (31); the light source (32) comprises several light source assemblies (4), each light source assembly (4) comprising LED particles (43) and a lens (41); the maximum light-emitting angle of the light source component (4) is larger than 85 degrees.

2. The low-position light of claim 1, characterized in that the light emitted by the LED particles (43) is divided into a first part of light and a second part of light after passing through the lens (41);

the intensity ratio of the first part of light to the second part of light is 30 percent to 70 percent to 30 percent; the first part of light rays are projected to a road middle area (100) after passing through the lens (41), and the second part of light rays are projected to an area (101) below a low-level lamp after passing through the lens (41).

3. The low position lamp of claim 2, wherein the ratio of the intensity of the first portion of light to the intensity of the second portion of light is 50% to 50%.

4. The low position lamp of claim 1, wherein the light source (32) further comprises a panel (311), a circuit board (322), a fixing frame (323), a heat sink (324), and a side fixing member (325);

the light source assembly (4) is arranged on the circuit board (322);

the fixing frame (323) and the side fixing piece (325) are used for fixing the circuit board (322) and the heat sink (324) on the lamp body (31).

5. A low position lamp as claimed in claim 1, further comprising a holder (323); the fixing frame (323) is used for mounting the lamp body (31) on a guardrail.

6. A low-position lamp as claimed in claim 2 or 3, characterized in that the lens is provided with a bottom surface (401) and a connection surface (402); the connecting surface divides the lens (41) into a first lens (411) and a second lens (412);

the first lens (411) comprises a first incident surface (501), a first reflecting surface (502) and a first emergent surface (503);

the second lens (412) comprises a second incident surface (601) and a second emergent surface (603);

the first incidence plane (501) and the second incidence plane (601) are both arranged on the bottom surface (401),

the first part of light enters the lens (41) after passing through the first incident surface (501), reaches the first exit surface (503) after being reflected by the first reflecting surface (502), and is refracted out of the lens (41) through the first exit surface (503);

the second part of light enters the lens (41) after passing through the second incident surface (601), and is refracted out of the lens (41) through the second exit surface (603).

7. A low position lamp as claimed in claim 6, wherein the first exit surface (503) is angled from the connection surface (402) by 90-105 degrees.

8. A low position lamp as claimed in claim 6, wherein the first exit surface (503) is provided with a number of protruding elements.

9. The low position light according to claim 8, wherein the first exit surface (503) is an arcuate surface and the arcuate chord is the exit surface chord (403); the protrusion unit comprises a first type protrusion and a second type protrusion;

the emergent surface is provided with concentric arcs which divide the cambered surface into a first cambered area (801) and a second fan-shaped area (802);

the first type of projections being located within the first region (801);

the second type of protrusions are located within the second region (802);

10. The low position light of claim 9, wherein the cross section of the protrusion unit in the direction perpendicular to the exit surface chord is a first arc shape;

the arc of the first arc (903) of the first type of bulge is greater than the arc of the first arc of the second type of bulge.

11. The low position light of claim 9, wherein the cross section of the protrusion unit in the direction parallel to the exit surface chord is a second arc shape;

12. A low position lamp as claimed in claim 6, characterized in that the second exit surface (603) is a frosted surface.

13. A low position lamp as claimed in claim 6, wherein the lens (41) further comprises positioning means, which are arranged at the bottom surface (401).

14. A low-position lamp according to claim 6, wherein the light source assembly (4) further comprises a lens holder (42), and the lens holder (42) is provided with a shading part (421).

15. The low-position light according to claim 14, wherein the light shielding portion (421) extends beyond the connection surface (402) in a direction perpendicular to the connection surface (402) and in a direction toward the second lens (412).

16. A low position lamp as claimed in claim 14, wherein the light-shielding part (421) extends beyond the first exit surface (503) in the direction of light exiting from the first exit surface (503).

17. A low-position lamp according to claim 16, wherein the shading angle between the edge of the shading portion (421) and the first exit surface (503) is 5-30 degrees.