CN210319850U

CN210319850U - LED tri-proof light

Info

Publication number: CN210319850U
Application number: CN201920870733.9U
Authority: CN
Inventors: 林燕丹; 沈春明; 赵晓杰
Original assignee: Shanghai Fuzhan Intelligent Technology Co ltd; Fudan University
Current assignee: Shanghai Fuzhan Intelligent Technology Co ltd; Fudan University
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-04-14
Anticipated expiration: 2029-06-11

Abstract

The utility model relates to a LED tri-proof light, include: a cover body including an inner surface and an outer surface; at least one concave prism disposed on the inner surface and distributed within a first predetermined angular range with respect to the light source; at least one convex prism arranged on the inner surface and distributed in a second predetermined angle range relative to the light source; a cover body connecting part connecting the cover body and the light source; the light source be for lamp shade main part center pin symmetric distribution's double LED light source, the utility model provides an illumination intensity that exists among the prior art inhomogeneous, wide-angle light reveal, the technical problem such as energy utilization rate low on the working face.

Description

LED tri-proof light

Technical Field

The utility model relates to the field of lighting, in particular to LED tri-proof light.

Background

The existing tri-proof lamp generally comprises a lamp body formed by connecting a lamp bottom and a lamp shade, wherein a luminous body is arranged in the lamp body, and the luminous body is generally a fluorescent lamp and an LED lamp. In prior art, the scheme of optical design in order to realize the grading design is not directly carried out on the lamp shade, but sets up the reflector panel between luminous body and lamp bottom to play the effect of reflection ray, and the technical scheme that this kind of current does not directly carry out optical design on the lamp shade has illumination inhomogeneous, wide-angle light leakage, the energy utilization on the working face technical problem such as low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a LED tri-proof light to solve the technical problem that the illuminance that exists is inhomogeneous among the prior art, the energy utilization on wide-angle light reveals, the working face is low grade.

In order to solve the above problem, the utility model provides a LED tri-proof light, including lamp shade main part, lamp shade main part connecting portion and light source, the following explains these several parts in detail respectively.

The lamp shade main part, it includes internal surface and surface, and the internal surface is made by a plurality of different refraction prisms, specifically is:

at least one concave prism disposed on the inner surface and distributed within a first predetermined angular range (mainly side edge portions) with respect to the light source;

at least one convex prism arranged on the inner surface and distributed in a second predetermined angular range (mainly the middle portion) with respect to the light source;

a cover body connecting part connecting the cover body and the light source;

the light source is a double-row LED light source which is symmetrically distributed relative to the central axis of the lampshade main body.

Preferably, the inner surface of the lampshade main body is provided with a plurality of concave prisms and a plurality of convex prisms from the middle to the bottom end of the side part, and the inner surface of the lampshade main body is symmetrically distributed relative to the axis in the middle. Namely, a plurality of concave prisms are distributed on the middle part of the inner surface, and a plurality of convex prisms are distributed on the lateral bottom end of the inner surface. The inner surface of the lampshade main body is provided with different refraction prisms from the middle to the bottom end of the side part, and the refraction prisms are symmetrically distributed along the central axis, so that various light distribution effects can be realized, the annular shape is consistent with the edge profile of the lampshade main body, and the annular structure does not play a light distribution role.

Preferably, a plurality of the concave prisms are distributed on a middle portion of the inner surface, and the distribution of the plurality of concave prisms includes two portions:

the first part is concave prism distribution from 0 degree to the central axis relative to the light source, is the most main part for forming light distribution, and is commonly influenced by double rows of LED light sources, the larger the angle is, the larger the deflection amount of the light is, the smaller the area occupied by the light is, namely the smaller the angle is, the larger the influence is;

the second part is a concave prism distribution relative to the light source from 0 degrees to the front of the convex prism at the bottom end of the side surface, and is deviated to the light source at one side and away from the light source at the other side, so that the influence of the light source at the near side only needs to be considered.

Preferably, the concave prisms are distributed at 0 degrees with respect to the light source such that the intensity of light therein is less than a predetermined value, and the convex prisms are distributed at 15 to 75 degrees such that the intensity of light therein reaches a maximum value. The convex prism bends the light rays by using the design of different angles and positions, so that the large-angle light rays are changed into the small-angle light rays.

Preferably, a plurality of the concave prisms are arranged at equal intervals.

Preferably, a plurality of the convex prisms are arranged in a staggered mode.

Preferably, the cross-sectional widths of the convex prisms and the concave prisms are less than 2 mm.

Preferably, the cross section of the concave prisms is a prism structure with a concave middle part, and the convex prisms are prism structures with convex side parts at the lower ends.

Preferably, the cross section of the concave prism is a concave triangle, wedge or sawtooth, and the concave angle is 0 to 45 degrees;

the cross section of the convex prism is in a protruding triangular shape, a wedge shape or a sawtooth shape, and the protruding angle of the convex prism is 0-30 degrees.

Preferably, the lampshade main body comprises a straight line part and a ring part, the ring part is positioned at two ends of the straight line part, and the concave prisms and the convex prisms are distributed on the straight line part.

Preferably, the edge of the outer wall of the lampshade main body is in a runway shape, and the middle part of the lampshade main body is in an arc shape.

Preferably, the light source is a double-row symmetrical LED light source formed by combining LED lamp beads distributed at equal intervals.

Preferably, the inner surface or/and the outer surface of the lampshade main body is/are provided with a frosted layer.

Compared with the prior art, the utility model discloses there are following technological effect:

1. the secondary light distribution is carried out on the lamp by utilizing the optical design, the conception is ingenious, the inner surface of the lampshade main body is provided with the layered refraction prism design, the light distribution can be reasonably optimized, the ideal refraction effect enables light rays to be more uniform, so that the illumination uniformity on a working surface is improved, the sensory effect is excellent, and the matching design of the double-row LED light sources and the refraction prism at the bottom end inside the lampshade main body not only improves the integral luminous flux of the lamp, but also reduces the light leakage with large angle, realizes the reduction of UGR and improves the energy utilization rate on the working surface;

2. the prism on the inner surface of the lampshade main body can be designed according to different lampshade shapes, and different light distribution effects can be formed according to requirements;

3. the prism of lamp shade main part internal surface can design according to double LED's position height, reduces UGR, realizes better light distribution effect.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts. In the drawings:

fig. 1 is a schematic structural diagram of an LED tri-proof light of the present invention;

fig. 2 is a schematic cross-sectional view of the lampshade main body of the present invention;

FIG. 3 is an enlarged schematic view of the cross section of the distribution of the concave prisms of the present invention;

FIG. 4 is a schematic view of a concave prism of the first embodiment of the present invention;

fig. 5 is an enlarged schematic view of the cross section of the distribution of the convex prisms at the side edge of the main body of the lampshade;

fig. 6 is an enlarged schematic view of the convex prism of the present invention;

FIG. 7 is a schematic diagram of a dual row LED light source;

FIG. 8 is a conventional tri-proof light distribution curve;

fig. 9 is a typical tri-light distribution curve that may be achieved by design.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 9, and this embodiment is implemented on the premise of the technical solution of the present invention, and a detailed embodiment and a specific operation process are given, but the present invention is not limited to the following embodiments, and those skilled in the art can modify and color the LED tri-proof light without changing the spirit and content of the present invention.

Referring to fig. 1, an outer surface, that is, an outer wall, of a lampshade body of an LED tri-proof light may be lightly frosted, mainly to prevent light leakage of the light fixture and glare; the prism structure is densely distributed on the inner surface of the lampshade main body, namely the inner surface.

The cover body is divided into a linear portion 11 conforming to the contour of the annular portion and an annular portion 12 extending as the linear portion. The straight portion 11 is a main portion for realizing an optical effect of light distribution, and the annular portion 12 serves as an appearance-beautifying function.

Referring to fig. 2, the outline of the lampshade main body is generally axisymmetric, mainly meeting the requirement of symmetric optical effect, the non-axisymmetric outline is also in the right protection, mainly meeting the requirement of asymmetric optical, and the LED light sources 13 are symmetrically distributed in the middle of the lamp relative to the central axis of the lampshade main body. The light is changed in one direction through the design of the prism, so that the light distribution curve is changed, the length direction of the lamp is Lambert-shaped light distribution, and the width direction of the lamp is specially-shaped light distribution (the light intensity in the 0-degree direction is not maximum).

Referring to fig. 8, the light distribution of the conventional tri-proof light is generally similar to lambertian, the light intensity in the 0 ° direction is the largest, and if the uniformity is to be realized, the central light intensity in the 0 ° direction is inevitably required to be reduced, the prism in the inner surface of the lampshade body is mainly composed of two types, the middle portion is a recessed prism, and the recessed prism is divided into two portions, referring to fig. 3 and 4, the first portion 14 is a recessed prism distribution from 0 ° to the central axis relative to the light source, the first portion is the most main portion for forming the light distribution, the distribution of the first portion is influenced by two rows of light sources, the larger the angle is, the larger the deflection amount of the light is, as shown in fig. 4, the range of the area occupied by the light is smaller, that the smaller the influence is the larger the smaller the angle is, so that a plurality of factors are required to design the middle portion, the light source 13 passes through the prism, the light is diverged, the angle α (α is the included angle between the prism and the profile of the light fixture) is increased by adjusting the prisms, when α angle is larger the light divergence degree is, the higher the uniformity is achieved, the reduction of the light intensity in the 0 ° direction is achieved, the light distribution of the prism distribution of the light distribution of the prism is increased, the light distribution of the prism.

The traditional tri-proof light is generally similar to lambert type, and a large amount of light rays are scattered in the direction larger than 70 degrees, so that the UGR of the light can be increased, the uniformity is improved, and the UGR is reduced, the large-angle light rays are bent towards the small-angle direction.

The design method of the prism generally has no size limitation, but the cross-sectional width of each prism is generally less than 2mm for the purpose of reducing the processing cost.

Please refer to fig. 7, which is a double-row symmetrical LED light source formed by combining LED bulbs distributed at equal intervals.

It should be understood that the above is a method for realizing light distribution by designing the prism on the tri-proof light fixture. As long as the method is applied to realize different light distribution forms, particularly the light intensity value in the 0-degree direction is less than a specific angle, the maximum light intensity value can be reached according to the requirement of the specific angle, and the maximum light intensity value is from 15 degrees to 75 degrees. The present invention can be modified, changed, or modified according to the above description, and all such modifications, changes, and modifications are intended to fall within the scope of the appended claims.

The utility model discloses a light distribution of lamps and lanterns is changed again in the design of the optical prism part of co-altitude and angle, realizes the optical design of secondary grading, realizes the illuminating effect of even degree on the working face, reduces lamps and lanterns UGR under a certain degree. Compared with the design of a single-row light source, the design of the double-row lamp can realize high-power LED illumination except the inconsistency of the design method, the overall brightness of the lamp is improved, and the requirements of more illumination fields are met.

The disclosure above is only one specific embodiment of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.

Claims

1. An LED tri-proof light, comprising:

a cover body including an inner surface and an outer surface;

at least one concave prism disposed on the inner surface and distributed within a first predetermined angular range with respect to the light source;

at least one convex prism arranged on the inner surface and distributed in a second predetermined angle range relative to the light source;

a cover body connecting part connecting the cover body and the light source;

the light sources are double rows of LED light sources which are symmetrically distributed relative to the central axis of the lampshade main body;

the inner surface of the lampshade main body is provided with a plurality of concave prisms and a plurality of convex prisms from the middle to the bottom end of the side part, and the inner surface of the lampshade main body is symmetrically distributed relative to the axis in the middle of the lampshade main body;

a plurality of said concave prisms are distributed in a middle portion of said inner surface, said distribution of said concave prisms comprising two portions:

the first part is concave prism distribution from 0 degree to the central axis relative to the light source, is the most main part for forming light distribution, and is commonly influenced by double rows of LED light sources, the larger the angle is, the larger the deflection amount of the light is, and the smaller the range of the area occupied by the light is;

the second part is a distribution of concave prisms at 0 degrees to the light source before the convex prisms at the bottom of the side, which is biased toward the light source on one side and away from the light source on the other side.

2. The LED tri-proof light of claim 1, wherein the concave prisms are distributed at 0 degrees with respect to the light source such that the intensity of light therein is less than a predetermined value, and the convex prisms are distributed at 15-75 degrees such that the intensity of light therein reaches a maximum value.

3. The LED tri-proof light of claim 1, wherein a plurality of said concave prisms are equally spaced.

4. The LED tri-proof light of claim 1, wherein a plurality of said convex prisms are arranged in a staggered manner.

5. The LED tri-proof light of claim 1, wherein the convex and concave prisms have cross-sectional widths less than 2 mm.

6. The LED tri-proof light as claimed in claim 1, wherein the cross section of the concave prisms is a prism structure with a concave middle part, and the convex prisms are prism structures with convex side parts at the lower ends.

7. The LED tri-proof light as claimed in claim 6, wherein the cross section of the concave prism is a concave triangle, wedge or sawtooth shape, and the concave angle is 0 to 45 degrees;

8. The LED tri-proof light as claimed in claim 1, wherein the cover body comprises a straight portion and a ring portion, the ring portion is located at both ends of the straight portion, and the concave prisms and the convex prisms are distributed on the straight portion.

9. The LED tri-proof light as claimed in claim 1, wherein the edge of the outer wall of the main body of the light cover is racetrack shaped, and the middle of the main body of the light cover is arc shaped.

10. The LED tri-proof light as claimed in claim 1, wherein the light source is a double-row symmetrical LED light source formed by combining LED lamp beads distributed at equal intervals.

11. The LED tri-proof light as claimed in claim 1, wherein the inner surface or/and the outer surface of the lampshade main body is provided with a frosted layer.