Multi-light-path lens with uniform illumination, light-emitting assembly and low-position illuminating lamp

Abstract

The utility model provides a multi-light-path lens with uniform illumination, a light-emitting assembly and a low-position illuminating lamp. The multi-light-path lens comprises a first refracting surface and a second refracting surface which are respectively arranged on two sides of a scattering light source; the arc-shaped light guide cover is arranged at the top of the scattering light source in a covering mode, a first free-form surface is arranged on the inner side of the arc-shaped light guide cover, a second free-form surface is arranged on the outer side of the arc-shaped light guide cover, and scattering light emitted from the scattering light source to the top sequentially penetrates through the first free-form surface and the second free-form surface. One part of scattered light emitted from the scattered light source to the two sides penetrates through the first refracting surface, is deflected and then is emitted out through the second free-form surface, and the other part of the scattered light penetrates through the second refracting surface, is reflected by the fully reflecting surface and then is diffused outwards; the low-position illuminating lamp solves the problem that in the prior art, a low-position illuminating lamp cannot ensure the uniformity of light rays on a road surface while reducing dazzle light generated to a driver.

Description

Technical Field

[0001] The utility model relates to the technical field of low-position road lighting, in particular to a multi-light path lens with uniform illumination, a light-emitting component and a low-position lighting lamp. Background Art

[0002] The current high-power lamps on urban viaducts, high-pole street lamps and large interchange hubs have low light utilization rates, which easily cause light pollution and have an adverse effect on the driver's driving safety behavior. At the same time, these high-pole high-power lamps on viaducts and large interchange hubs easily blur the driving routes and boundaries, have low lighting efficiency, and produce glare in specific driving areas, thereby reducing the safety driving coefficient, increasing the maintenance cost of large lamps, and increasing the difficulty and danger of maintenance work.

[0003] Due to the above-mentioned shortcomings of high-pole high-power lamps, low-position lighting is increasingly widely used in cities. Low-position lighting street lamps are closer to the road surface, so the power used is greatly reduced for the same road lighting effect, which is more energy-saving and environmentally friendly. At the same time, low-position lighting street lamps are more compact in design and occupy less space, so the wind resistance is small. At the same time, their compact design also makes them have good seismic resistance. In addition, the light distribution of low-position lighting street lamps is more uniform, and their precise light distribution lens allows the light to be completely projected onto the bridge deck. The light is soft, and the linear light band can also clearly mark the road boundary, improving road safety.

[0004] However, since the installation height of most low-position lighting is not much different from the eye height of the driving position, the low-position lamp needs to illuminate the motor vehicle lane, which will cause glare to the human eye and cause safety hazards. This requires a special installation angle when installing the low-position lamp, or adding a shading cover to the outer surface of the low-position lamp to reduce the glare value. The former approach will bring difficulties to the installation. Each lamp must be installed at a specific angle during installation. It is impossible to achieve a consistent angle for each lamp, and the installation accuracy cannot be guaranteed, resulting in poor lighting effects. Lamps with different angles will affect the appearance of the road. The latter approach is used in a road environment, and the protruding external parts also bring safety hazards to passing vehicles and pedestrians. Therefore, a low-position lighting lamp is needed that can illuminate the road surface at a specific angle to reduce the glare to the driver while ensuring uniform illumination of the road surface. Utility Model Content

[0005] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the present invention is to provide a multi-light path lens, a light-emitting assembly and a low-position lighting lamp with uniform illumination, so as to solve the problem that the low-position lighting fixtures in the prior art cannot reduce glare to the driver while ensuring uniform road light.

[0006] In order to solve the above technical problems, the utility model provides a multi-light path lens with uniform illumination, which is used to redistribute the light energy of a scattered light source, comprising:

[0007] A first refractive surface and a second refractive surface, wherein the first refractive surface and the second refractive surface are respectively arranged on two sides of the scattering light source;

[0008] An arc-shaped light guide cover, wherein the arc-shaped light guide cover is arranged on the top of the scattered light source, a first free-curved surface is arranged on the inner side of the arc-shaped light guide cover, and a second free-curved surface is arranged on the outer side of the arc-shaped light guide cover, scattered light emitted from the scattered light source toward the top passes through the first free-curved surface and the second free-curved surface in sequence, and this part of the light is deflected toward the central axis direction of the arc-shaped light guide cover, and a part of the scattered light emitted from the scattered light source toward both sides passes through the first refractive surface, and is emitted through the second free-curved surface after being deflected, and the other part passes through the second refractive surface and diffuses outward;

[0009] A total reflection surface is arranged on the path of light that passes through the second refractive surface and diffuses outwards. This part of the light is reflected by the total reflection surface and deflected toward the central axis of the arc-shaped light guide cover.

[0010] As a more preferred embodiment, the multi-path lens with uniform illumination also includes a light-transmitting base, a through hole for accommodating the scattered light source is provided on the light-transmitting base, the arc-shaped light guide cover is covered on the through hole, the first refractive surface and the second refractive surface are respectively provided on the inner wall of the through hole, and the heat dissipation light source arranged in the through hole emits scattered light to both sides, a part of which passes through the first refractive surface, and the other part passes through the second refractive surface.

[0011] As a more preferred embodiment, the multi-light path lens with uniform illumination further includes a third refractive surface, and the third refractive surface is arranged on the path of the reflected light emitted by the total reflection surface, and the reflected light passes through the third refractive surface and is further deflected toward the central axis direction of the arc-shaped light guide cover.

[0012] As a more preferred embodiment, the multi-path lens with uniform illumination includes a reflective wedge, which is arranged on a side of the light-transmitting base close to the first refractive surface and is attached to the arc-shaped light guide cover, and the total reflection surface and the third refractive surface are arranged on the two wedge surfaces of the reflective wedge.

[0013] In order to solve the above problems, the utility model also provides a light emitting assembly, including:

[0014] A circuit substrate and a light-emitting unit disposed on the circuit substrate;

[0015] In the above-mentioned multi-light path lens with uniform illumination, the arc-shaped light guide cover is arranged on the top of the light-emitting unit to redistribute the light energy scattered by the light-emitting unit.

[0016] As a more preferred embodiment, the light-emitting component includes a plurality of light-emitting units, and the plurality of light-emitting units are evenly arranged on the circuit substrate; the light-emitting component also includes a plurality of multi-light-path lenses with uniform illumination corresponding one-to-one to the light-emitting units, and the plurality of light-emitting units can further enhance the illumination of the light-emitting component.

[0017] In order to solve the above problems, the utility model also provides a low-position lighting lamp, comprising:

[0018] A housing, the housing comprising a light emitting cover, the light emitting cover being provided with a front light emitting surface and two side light emitting surfaces respectively provided on the left and right sides of the front light emitting surface;

[0019] The above-mentioned light-emitting component is arranged in the housing, and the light emitted by the light-emitting component is transmitted through the light-emitting cover;

[0020] When the low-position lighting lamp is set on the roadside, the outgoing light emitted from the light-emitting unit passes through the first free-form surface and the second free-form surface in sequence and is deflected to illuminate the middle of the road; the outgoing light emitted from the light-emitting unit passes through the first refractive surface and the second free-form surface in sequence and is deflected to illuminate the far side of the road, and the outgoing light emitted from the light-emitting unit passes through the second refractive surface and the total reflection surface in sequence and is deflected to illuminate the near side of the road.

[0021] As a more preferred manner, the light emitting assembly is arranged toward the specified driving direction of the road and inclined at a certain angle to the road surface, which further reduces the impact of glare on the driver and also ensures that its light can be evenly irradiated on the road.

[0022] As a more preferred embodiment, the low-position lighting lamp further comprises a reflective sticker, which is attached to the side light-emitting surface. When the low-position lighting lamp is arranged on the roadside, the side light-emitting surfaces on both sides of the reflective sticker are respectively provided with different colors according to the driving direction specified by the road, so as to play the role of inducing and warning the driver and preventing the driver from driving in the wrong direction.

[0023] As a more preferred embodiment, the low-position lighting lamp also includes an induction warning light, which is arranged on the inner side of the side light output surface, so that when the low-position lighting lamp is set on the roadside, according to the driving direction specified by the road, the induction warning light is set with different colors on the side light output surfaces on both sides, so as to play the role of inducing and warning the driver and preventing reverse driving.

[0024] As described above, the multi-light path lens, light-emitting component and low-position lighting lamp with uniform illumination of the utility model have the following beneficial effects: when the multi-light path lens with uniform illumination of the utility model is in use, the scattered light emitted from the scattered light source is divided into three parts, wherein the first part is emitted toward the top of the scattered light source and passes through the first free-curved surface and the second free-curved surface in sequence, and this part of the light is deflected toward the central axis of the arc-shaped light guide cover; the second part is emitted toward one side of the scattered light source and passes through the first refractive surface, and after deflection, it is emitted through the second free-curved surface, and at the same time, this part of the light is deflected toward the central axis of the arc-shaped light guide cover; the third part passes through the second refractive surface, is reflected by the total reflection surface and diffuses outward, and this part of the light is also deflected toward the central axis of the arc-shaped light guide cover; in this way, the scattered light emitted by the scattered light source is gathered within a certain angle range, and at the same time, the multiple light path designs also ensure that the illumination of the light spot formed is more uniform;

[0025] Since the light-emitting assembly of the utility model adopts the above-mentioned multi-light path lens with uniform illumination, when it is used, the light emitted by the light-emitting assembly can be converged within a certain angle range, and the multiple light path designs also ensure that the illumination of the light spot formed is more uniform;

[0026] When the low-position lighting lamp of the utility model is used, it is set on the roadside. The scattered light emitted by the light-emitting unit is refracted and reflected by the multi-light path lens with uniform illumination. The first part of the emitted light is refracted and illuminates the middle of the road, thereby improving the optical utilization rate and the average illumination value of the road surface; the second part of the emitted light is refracted and illuminates the far side of the road, so that the small-angle light of this part is evenly scattered onto the road surface, thereby improving the illumination uniformity of the road surface; the third part is refracted and reflected and illuminates the near side of the road, thereby compensating for the illumination value under the roadside lamp, so that the overall road surface is not The phenomenon of bright in the middle and dark on both sides will appear; the outgoing light of the above three parts gathers the heat dissipation light emitted by the light-emitting unit within a certain angle range, which not only improves the illumination within the illumination range, but also makes the light range better controlled to avoid glare caused by direct exposure to the driver's glasses. At the same time, the multiple light path designs also ensure that the illumination of the light spot formed is more uniform, so as to meet the provisions of the "Urban Road Lighting Design Standard-CJJ45-2015" on illumination uniformity. At the same time, there is no protruding external parts such as hoods added in the structure to reduce the glare value, which brings safety protection to vehicles and pedestrians.

[0027] To sum up, the multi-light path lens, light-emitting component and low-position lighting lamp with uniform illumination of the utility model realize the control of the light range and avoid the occurrence of glare through the lens that can converge scattered light within a certain angle range and has multiple light paths, and also make the illumination of the light spot more uniform, thereby solving the problem in the prior art that low-position lighting fixtures cannot reduce glare to drivers while ensuring uniform road light. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Shown is a cross-sectional view of a multi-light path lens with uniform illumination according to the present invention;

[0029] Figure 2 Shown is a top view of a multi-light path lens with uniform illumination according to the utility model;

[0030] Figure 3 The bottom view of the multi-light path lens with uniform illumination of the utility model is shown;

[0031] Figure 4 Shown is a schematic diagram of the structure of the light-emitting component of the utility model;

[0032] Figure 5 Shown is a schematic diagram of the structure of the low-position lighting lamp of the utility model;

[0033] Figure 6 A schematic diagram showing a light-emitting assembly of a low-position lighting lamp of the present invention tilted 30° toward the driving direction;

[0034] Figure 7 A schematic diagram showing that the angle between the light-emitting component of the low-position lighting lamp of the present invention and the road surface is 70°;

[0035] Figure 8 Shown is a schematic diagram of the reflective sticker of the low-position lighting lamp of the utility model;

[0036] Fig. 9 Shown is a schematic diagram of the induction warning light of the low-position lighting lamp of the present utility model.

[0037] Component number description

[0038] 1 Multi-path lens

[0039] 11 Translucent Base

[0040] 111 First refraction surface

[0041] 112 Second refractive surface

[0042] 12 Curved light guide

[0043] 121 First free-form surface

[0044] 122 Second free-form surface

[0045] 13 Reflective wedge

[0046] 131 Total reflection surface

[0047] 132 Third refraction surface

[0048] 2 Scattered light source

[0049] 3 Circuit board

[0050] 4. Housing

[0051] 41 Light mask

[0052] 411 positive light surface

[0053] 412 Side light surface

[0054] 42 Top cover

[0055] 43 Gasket

[0056] 5 Support structure

[0057] 51 Legs

[0058] 52 Connecting plate

[0059] 53 Locking piece

[0060] 54 Washer

[0061] 6 Cables

[0062] 7 Power board

[0063] 8 Heat sink

[0064] 9 Reflective tape

[0065] 10 Guidance warning lights DETAILED DESCRIPTION

[0066] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0067] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terms used here are only for describing specific embodiments and are not intended to limit this application. Spatial related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., can be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "hold" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0070] like Figures 1 to 9 As shown, the utility model provides a multi-light path lens with uniform illumination, which is used to redistribute the light energy of the scattered light source 2, including:

[0071] A first refractive surface 111 and a second refractive surface 112, wherein the first refractive surface 111 and the second refractive surface 112 are respectively disposed on two sides of the scattering light source 2;

[0072] An arc-shaped light guide cover 12, wherein the arc-shaped light guide cover 12 is provided on the top of the scattered light source 2, wherein a first free-curved surface 121 is provided on the inner side of the arc-shaped light guide cover 12, and a second free-curved surface 122 is provided on the outer side thereof, and scattered light emitted from the scattered light source 2 toward the top sequentially passes through the first free-curved surface 121 and the second free-curved surface 122, and makes this part of the light deflected toward the central axis direction of the arc-shaped light guide cover 12, and a part of the scattered light emitted from the scattered light source 2 toward both sides passes through the first refractive surface 111, and is emitted through the second free-curved surface 122 after being deflected, and another part passes through the second refractive surface 112 and diffuses outward;

[0073] The total reflection surface 131 is disposed on the path of light rays that pass through the second refractive surface 112 and diffuse outward. This part of the light rays is reflected by the total reflection surface 131 and deflected toward the central axis of the arc-shaped light guide cover 12 .

[0074] In order to better introduce the multi-light path lens 1 with uniform illumination of the utility model, the following specific applications are now described: Figure 1 As shown, when the multi-light path lens 1 with uniform illumination of the utility model is in use, the scattered light emitted from the scattered light source 2 is divided into three parts, wherein the first part is emitted toward the top of the scattered light source 2 and passes through the first free curved surface 121 and the second free curved surface 122 in sequence, and this part of the light is deflected toward the central axis of the arc-shaped light guide cover 12; the second part is emitted toward one side of the scattered light source 2 and passes through the first refractive surface 111, and after deflection, it is emitted through the second free curved surface 122, and at the same time, this part of the light is deflected toward the central axis of the arc-shaped light guide cover 12; the third part passes through the second refractive surface 112 and is reflected and diffused outward by the total reflection surface 131, and this part of the light is also deflected toward the central axis of the arc-shaped light guide cover 12; in this way, the scattered light emitted by the scattered light source 2 is gathered within a certain angle range, and at the same time, the multiple light path designs also ensure that the illumination of the light spot formed is more uniform; at the same time, the structure does not have protruding external parts such as sunshades to reduce the glare value, which brings safety protection to passing vehicles and pedestrians.

[0075] In this embodiment, if Figure 1 , Figure 2 as well as Figure 3As shown, the multi-path lens 1 with uniform illumination also includes a light-transmitting base 11, a through hole for accommodating the scattered light source 2 is opened on the light-transmitting base 11, the arc-shaped light guide cover 12 is covered on the through hole, the first refractive surface 111 and the second refractive surface 112 are respectively arranged on the inner wall of the through hole, and the heat dissipation light source arranged in the through hole emits scattered light to both sides, a part of which passes through the first refractive surface 111, and the other part passes through the second refractive surface 112.

[0076] In this embodiment, if Figure 1 , Figure 2 as well as Figure 3 As shown, the multi-light path lens 1 with uniform illumination further includes a third refractive surface 132 , which is arranged on the path of the reflected light emitted from the total reflection surface 131 , and the reflected light passes through the third refractive surface 132 and is further deflected toward the central axis direction of the arc-shaped light guide cover 12 .

[0077] In this embodiment, if Figure 1 , Figure 2 as well as Figure 3 As shown, the multi-path lens 1 with uniform illumination includes a reflective wedge 13, which is arranged on a side of the transparent base 11 close to the first refractive surface 111 and is in contact with the arc-shaped light guide cover 12, and the total reflection surface 131 and the third refractive surface 132 are arranged on the two wedge surfaces of the reflective wedge 13.

[0078] In order to solve the above problems, Figure 4 As shown, the utility model also provides a light-emitting component, including:

[0079] A circuit substrate 3 and a light-emitting unit disposed on the circuit substrate 3;

[0080] In the above-mentioned multi-light path lens 1 with uniform illumination, the arc-shaped light guide cover 12 is arranged on the top of the light-emitting unit to redistribute the light energy scattered by the light-emitting unit.

[0081] In order to better introduce the multi-light path lens 1 with uniform illumination of the utility model, it is now explained in combination with the following specific applications: Since the light-emitting component of the utility model adopts the multi-light path lens 1 with uniform illumination, when it is in use, the light emitted by the light-emitting component can be converged within a certain angle range, and the multiple light path designs also ensure that the illumination of the light spot formed is more uniform.

[0082] Furthermore, in this embodiment, the circuit substrate 3 uses an aluminum substrate. First, the aluminum substrate can reduce thermal resistance to a minimum, has a smaller thermal resistance, and has a thermal expansion coefficient closer to that of copper foil, so that the aluminum substrate has excellent thermal conductivity and heat dissipation performance, reduces the module operating temperature, and prolongs the service life; secondly, with the same thickness and the same line width, the aluminum substrate can carry a higher current; and the aluminum substrate can replace the ceramic substrate, with better mechanical durability. At the same time, high strength and toughness can realize large-area printed circuit board manufacturing and component mounting; finally, in order to ensure the performance of electronic circuits, some components in electronic products need to prevent electromagnetic wave radiation and interference, and the aluminum substrate can act as a shielding plate to shield electromagnetic waves.

[0083] In this embodiment, if Figure 4 As shown, the light-emitting component includes a plurality of light-emitting units, and the plurality of light-emitting units are evenly arranged on the circuit substrate 3; the light-emitting component also includes a plurality of multi-light-path lenses 1 with uniform illumination corresponding to the light-emitting units one by one, and the plurality of light-emitting units can further improve the illumination of the light-emitting component; further, in the present embodiment, a total of twelve light-emitting units and corresponding multi-light-path lenses 1 with uniform illumination are arranged on the circuit substrate 3, which take into account both illumination and heat generation, and at the same time reduce the working junction temperature of the chip under the same power operation, and increase the adjustable range of the rated power of the whole lamp; further, in the present embodiment, the light-emitting unit can adopt LED, which has the advantages of high efficiency and energy saving, long life, environmental protection, fast start-up, rich colors, safety and reliability, and good directionality.

[0084] In order to solve the above problems, Figure 5 As shown, the utility model also provides a low-position lighting lamp, comprising:

[0085] A housing 4, wherein the housing 4 comprises a light emitting cover 41, wherein the light emitting cover 41 is provided with a front light emitting surface 411 and two side light emitting surfaces 412 respectively provided on the left and right sides of the front light emitting surface 411;

[0086] The light emitting component is disposed in the housing 4, and the light emitted by the light emitting component is transmitted through the light emitting cover 41;

[0087] When the low-position lighting lamp is set on the roadside, the outgoing light emitted from the light-emitting unit passes through the first free-curved surface 121 and the second free-curved surface 122 in sequence and is deflected to illuminate the middle of the road; the outgoing light emitted from the light-emitting unit passes through the first refractive surface 111 and the second free-curved surface 122 in sequence and is deflected to illuminate the far side of the road, and the outgoing light emitted from the light-emitting unit passes through the second refractive surface and the total reflection surface 131 in sequence and is deflected to illuminate the near side of the road.

[0088] In order to better introduce the multi-light path lens 1 with uniform illumination of the utility model, the following specific application is now used for explanation: when the low-position lighting lamp of the utility model is used, it is set on the roadside, and the scattered light emitted by the light-emitting unit is refracted and reflected by the multi-light path lens 1 with uniform illumination. The first part of the emitted light is refracted and illuminated in the middle of the road, which improves the optical utilization rate and the average illumination value of the road surface; the second part of the emitted light is refracted and illuminated on the far side of the road, so that the small-angle light of this part is evenly scattered onto the road surface, which improves the illumination uniformity of the road surface; After refraction and reflection, the three parts shine on the near side of the road, making up for the illumination value under the curb lamp, so that the overall road surface will not be bright in the middle and dark on both sides; the outgoing light of the above three parts converges the heat dissipation light emitted by the light-emitting unit within a certain angle range, which not only improves the illumination within the illumination range, but also makes the light range better controlled to avoid glare caused by direct exposure to the driver's glasses. At the same time, the multiple light path designs also ensure that the illumination of the light spot formed is more uniform, so as to meet the "Urban Road Lighting Design Standard-CJJ45-2015" on illumination uniformity regulations.

[0089] In summary, the multi-light path lens, light-emitting assembly and low-position lighting lamp with uniform illumination of the utility model can control the light range by means of a lens that can converge scattered light within a certain angle range and has multiple light paths, thereby avoiding the occurrence of glare and making the illumination of the light spot more uniform, thereby solving the problem in the prior art that low-position lighting fixtures cannot reduce glare to drivers while ensuring uniform road light.

[0090] Furthermore, in this embodiment, if Figure 4 As shown, the housing 4 also includes the top cover 42 which is arranged above the light emitting cover 41 and covers the light emitting cover 41 to form a cavity for accommodating the light emitting component; further, in this embodiment, the lamp cover surrounds the light emitting cover 41, and the water inlet direction is opposite to the flow direction of rainwater, and together with the sealing gasket 43 and the respirator arranged in the inner cavity, the protection level of IP66 can be achieved.

[0091] In this embodiment, the light emitting cover 41 and the multi-light path lens 1 with uniform illumination are both made of transparent PC material, wherein the multi-light path lens 1 with uniform illumination is produced by a mold injection molding process, and the product consistency is good. As a more preferred method, the light-emitting component is set at a certain angle toward the driving direction specified by the road and the road surface, which further reduces the impact of glare on the driver and also ensures that its light can be evenly irradiated on the road; further, in this embodiment, the light-emitting component is tilted 30° toward the driving direction specified by the road, and the angle between the light-emitting component and the road surface is 70°, so that the glare can be reduced while ensuring that the light can be evenly scattered on the road.

[0092] In this embodiment, if Figure 5 As shown, the low-position lighting lamp also includes a supporting structure 5, and the supporting structure 5 includes two supporting legs 51. The two supporting legs 51 are symmetrically arranged on both sides of the shell 4, so as to provide a relatively stable support for the low-position lighting lamp; further, in this embodiment, the bottoms of the two supporting legs 51 are connected by a connecting plate 52, and the connecting plate 52 is provided with a through hole for fixing to the roadside guardrail.

[0093] In this embodiment, if Figure 5 As shown, the two legs 51 are hinged on both sides of the shell 4, and the shell 4 is rotated along the hinge point to adjust the up and down inclination angle of the light emitted by the light-emitting component. The support structure 5 also includes two locking members 53 arranged at the two hinge points. When the user completes the up and down inclination adjustment, the corresponding hinge structure is locked by the locking member 53 to maintain the desired posture. In this way, different up and down inclination angles can be adaptively adjusted according to different road sections and environmental factors, further enriching the use scenarios of the low-position lighting of the utility model, and simplifying the installation method of the lamp to avoid installing the lamp at a specific angle during installation. The installation accuracy is easy to ensure and does not affect the appearance of the road. Furthermore, in this embodiment, Figure 5 As shown, the locking member 53 is a fixing bolt, and the fixing bolt passes through threaded holes respectively provided on the housing 4 and the leg 51 to lock the leg 51 and the housing 4; further, in this embodiment, as Figure 5 As shown, a gasket 54 is further provided between the support leg 51 and the housing 4, and the gasket 54 can play a role in buffering and shock absorption, reduce the impact of roadside vibration conditions on the equipment, and improve the service life. Furthermore, in this embodiment, the gasket 54 is a silicone ring. First, the silicone ring has excellent high temperature resistance and low temperature resistance. At the same time, the silicone ring has excellent chemical resistance and can resist the erosion of various chemicals, including acids, alkalis, solvents, etc. Using a silicone ring as the gasket 54 can extend the service life of the product.

[0094] In this embodiment, if Figure 5 As shown, the light emitting assembly further includes a cable 6 electrically connected to the circuit substrate 3 and used to provide power; further, in this embodiment, the cable 6 is connected to the circuit substrate 3 through a power board 7. In this embodiment, a threading hole is provided on the light output cover 41, one end of the cable 6 is connected to the circuit substrate 3, and the other end passes through the threading hole and is led out of the light output cover 41.

[0095] Furthermore, in this embodiment, if Figure 5 As shown, the low-position lighting lamp also includes a heat sink 8, and the power board 7 is arranged on the heat sink 8, and the heat sink 8 is used to provide heat dissipation for the power board 7; further, in this embodiment, the power board 7 is made of ceramic material, and the heat sink 8 is made of aluminum die-casting material. This ceramic plus aluminum die-casting heat dissipation structure design can improve the heat dissipation capacity, is easy to install, and meets high-power use.

[0096] In this embodiment, if Figure 6 as well as Figure 7 As shown, the low-position lighting lamp also includes a reflective sticker 9, and the reflective sticker 9 is attached to the side light emitting surface 412, so that when the low-position lighting lamp is set on the roadside, according to the driving direction specified by the road, the reflective sticker 9 is set with different colors on the side light emitting surfaces 412 on both sides, so as to play a role in inducing and warning the driver to prevent the driver from going in the wrong direction; specifically, in this embodiment, the reflective sticker 9 arranged on the left side of the driving direction specified by the road is a yellow reflective sticker 9, and the reflective sticker 9 arranged on the right side of the driving direction specified by the road is a white reflective sticker 9. The driver can clearly distinguish whether the driver is going in the wrong direction according to the color of the reflective sticker 9, thereby further improving the reminder effect.

[0097] In this embodiment, if Figure 8 as well as Fig. 9 As shown, the low-position lighting lamp also includes an induction warning light 10, and the induction warning light 10 is arranged on the inner side of the side light emitting surface 412, so that when the low-position lighting lamp is set on the roadside, according to the driving direction specified by the road, the induction warning light 10 is set with different colors on the side light emitting surfaces 412 on both sides, so as to play the role of inducing and warning the driver to prevent the driver from going in the wrong direction; specifically, in this embodiment, the induction warning light 10 arranged on the left side of the driving direction specified by the road adopts yellow lamp beads, and the induction warning light 10 arranged on the right side of the driving direction specified by the road adopts white lamp beads. The driver can clearly distinguish whether the driver is going in the wrong direction according to the color of the induction warning light 10, thereby further improving the reminder effect; further, in this embodiment, the lamp bead can be LED, which has the advantages of high efficiency and energy saving, long life, environmental protection, quick start, rich colors, safety and reliability, and good directionality, and is very suitable for use as an induction warning light 10.

[0098] Furthermore, in this embodiment, Figure 7 Simulate the light distribution curve for the optical lens. From the driver's perspective, only the road surface is illuminated, and there is no residual light in the direction of the driver's eyes, thereby reducing glare. Furthermore, Figure 8 The illumination uniformity of the road surface with low-position lamps installed at intervals of two meters is simulated, and is 0.674, which is better than the requirements of the Urban Road Lighting Design Standard - CJJ45-2015.

[0099] This embodiment provides a multi-light path lens, a light emitting assembly, and a low-position lighting lamp with uniform illumination, which have the following significant advantages:

[0100] 1. Light redistribution and illumination uniformity: Through the first refractive surface 111, the second refractive surface 112, the first free-form surface 121 on the inner side of the arc-shaped light guide cover 12, and the second free-form surface 122 on the outer side, the utility model can effectively redistribute the light energy emitted by the scattered light source 2, ensuring that the light is deflected toward the central axis of the arc-shaped light guide cover 12, thereby achieving uniform distribution of illumination.

[0101] 2. Improved heat dissipation performance: The light-emitting component uses an aluminum substrate as the circuit substrate 3, which has excellent thermal conductivity and heat dissipation performance, effectively reducing the operating temperature of the module and extending its service life.

[0102] 3. Electromagnetic compatibility: The aluminum substrate can also be used as a shielding plate to effectively prevent the radiation and interference of electromagnetic waves, ensuring the stable performance of electronic circuits.

[0103] 4. Modularity and adjustability: The design of multiple light-emitting units and corresponding multi-light path lenses 1 can further improve the illumination of the light-emitting assembly, while the adjustable range of the rated power of the entire lamp is expanded to meet different lighting needs.

[0104] 5. Protection level and material selection: The design of the top cover 42 allows the housing 4 to form a cavity, which, in combination with the sealing gasket 43 and the respirator, can achieve the protection level of IP66. At the same time, the light hood 41 and the multi-light path lens 1 are made of transparent PC material, which ensures the transparency and durability of the product.

[0105] 6. Convenience of installation and adjustment: The design of the support structure 5 allows the up and down inclination angles of the light-emitting component to be adjusted according to actual needs, adapting to different road sections and environments, and simplifying the installation process.

[0106] 7. Safety and warning function: The setting of the reflective tape 9 and / or the induction warning light 10 improves the driving safety of the driver and prevents the driver from driving in the wrong direction. At the same time, the use of LED lamp beads provides a warning light source with high efficiency, energy saving and long life.

[0107] 8. Lighting effect simulation and verification: The superiority of the lighting effect is verified by simulating the light distribution curve and road illumination through optical lenses, ensuring that the illumination uniformity is better than the relevant standards.

[0108] In summary, the multi-light path lens and low-position lighting design of the utility model patent not only improves the lighting effect and illumination uniformity, but also takes into account the needs of heat dissipation, electromagnetic compatibility, protection level and installation adjustment, and is a low-position lighting solution with excellent comprehensive performance. Therefore, the utility model effectively overcomes various shortcomings in the existing technology and has a high industrial utilization value.

[0109] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A multi-light path lens (1) with uniform illumination, used for redistributing the light energy of a scattered light source (2), characterized in that: include: A first refractive surface (111) and a second refractive surface (112), wherein the first refractive surface (111) and the second refractive surface (112) are respectively arranged on two sides of the scattered light source (2); An arc-shaped light guide cover (12), the arc-shaped light guide cover (12) being arranged on the top of the scattered light source (2), the inner side of the arc-shaped light guide cover (12) being provided with a first free-curved surface (121), and the outer side of the arc-shaped light guide cover (12) being provided with a second free-curved surface (122), scattered light emitted from the scattered light source (2) toward the top passes through the first free-curved surface (121) and the second free-curved surface (122) in sequence, and this part of the light is deflected toward the central axis direction of the arc-shaped light guide cover (12), and scattered light emitted from the scattered light source (2) toward both sides passes through the first refractive surface (111), and after being deflected, is emitted through the second free-curved surface (122), and the other part passes through the second refractive surface (112) and diffuses outwards; A total reflection surface (131), the total reflection surface (131) being arranged on a light path that passes through the second refractive surface (112) and diffuses outwards, and this portion of light is reflected by the total reflection surface (131) and deflected toward the central axis direction of the arc-shaped light guide cover (12).

2. The multi-light path lens (1) with uniform illumination according to claim 1, characterized in that: The multi-light path lens (1) with uniform illumination also comprises a light-transmitting base (11), a through hole for accommodating the scattered light source (2) is provided on the light-transmitting base (11), the arc-shaped light guide cover (12) is arranged on the through hole, the first refractive surface (111) and the second refractive surface (112) are arranged on the inner wall of the through hole, and the heat dissipation light source arranged in the through hole emits scattered light to both sides, a part of which passes through the first refractive surface (111) and the other part passes through the second refractive surface (112).

3. The multi-light path lens (1) with uniform illumination according to claim 2, characterized in that: The multi-light path lens (1) with uniform illumination further comprises a third refractive surface (132), wherein the third refractive surface (132) is arranged on the path of the reflected light emitted by the total reflection surface (131), and the reflected light passes through the third refractive surface (132) and is further deflected toward the central axis direction of the arc-shaped light guide cover (12).

4. The multi-light path lens (1) with uniform illumination according to claim 3, characterized in that: The multi-light path lens (1) with uniform illumination comprises a reflective wedge (13), wherein the reflective wedge (13) is arranged on a side of a light-transmitting base (11) close to the first refractive surface (111) and is in contact with the arc-shaped light guide cover (12), and the total reflection surface (131) and the third refractive surface (132) are arranged on two wedge surfaces of the reflective wedge (13).

5. A light emitting component, characterized in that: include: A circuit substrate (3) and a light-emitting unit arranged on the circuit substrate (3); The multi-light path lens (1) with uniform illumination as described in any one of claims 1 to 4, wherein the arc-shaped light guide cover (12) is arranged on the top of the light-emitting unit to redistribute the light energy scattered by the light-emitting unit.

6. The light emitting assembly according to claim 5, characterized in that: The light-emitting assembly comprises a plurality of light-emitting units, and the plurality of light-emitting units are evenly arranged on the circuit substrate (3); the light-emitting assembly also comprises a plurality of multi-light-path lenses (1) with uniform illumination corresponding one by one to the light-emitting units.

7. A low-position lighting lamp, characterized in that: include: A housing (4), the housing (4) comprising a light emitting cover (41), the light emitting cover (41) being provided with a front light emitting surface (411) and two side light emitting surfaces (412) respectively arranged on the left and right sides of the front light emitting surface (411); The light-emitting component according to any one of claims 5 to 6, wherein the light-emitting component is arranged in the housing (4), and the light emitted by the light-emitting component is transmitted through the light-emitting cover (41); When the low-position lighting lamp is arranged on the roadside, the outgoing light emitted from the light-emitting unit passes through the first free-curved surface (121) and the second free-curved surface (122) in sequence and is deflected and irradiated on the middle of the road; the outgoing light emitted from the light-emitting unit passes through the first refractive surface (111) and the second free-curved surface (122) in sequence and is deflected and irradiated on the far side of the road; and the outgoing light emitted from the light-emitting unit passes through the second refractive surface and the total reflection surface (131) in sequence and is deflected and irradiated on the near side of the road.

8. The low-position lighting lamp according to claim 7, characterized in that: The light emitting assembly is arranged toward the driving direction specified by the road and inclined at a certain angle to the road surface.

9. The low-position lighting lamp according to claim 7, characterized in that: The low-position lighting lamp further comprises a reflective sticker (9) which is attached to the side light-emitting surface (412), so that when the low-position lighting lamp is arranged on the roadside, the side light-emitting surfaces (412) on both sides of the reflective sticker (9) are respectively provided with different colors according to the driving direction specified by the road, so as to play the role of inducing and warning the driver and preventing the driver from driving in the wrong direction.

10. The low-position lighting lamp according to claim 7, characterized in that: The low-position lighting lamp further comprises an induction warning lamp (10), wherein the induction warning lamp (10) is arranged on the inner side of the side light emitting surface (412), so that when the low-position lighting lamp is arranged on the roadside, the side light emitting surfaces (412) on both sides of the induction warning lamp (10) are set with different colors according to the driving direction specified by the road, so as to play the role of inducing and warning the driver and preventing the driver from driving in the wrong direction.

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