CN217482675U

CN217482675U - Lamp fitting

Info

Publication number: CN217482675U
Application number: CN202221539592.0U
Authority: CN
Inventors: 李京蔓
Original assignee: Suzhou Op Lighting Co Ltd
Current assignee: Suzhou Op Lighting Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-23
Anticipated expiration: 2032-06-20

Abstract

The utility model provides a lamp, which comprises a housin, be equipped with the light guide plate in the casing and center on and move towards the light source module that the light guide plate set up, the light guide plate below is equipped with the diffuser plate, the diffuser plate includes first optical part and second optical part, second optical part is around setting up the first optical part outside, the second optical part orientation one side of light guide plate is equipped with third optical part, third optical part includes the arch of a plurality of close pavements setting, the light that the light source module sent via behind third optical part's the surface refraction, through the diffuser plate jets out. Compared with the prior art, the utility model discloses can eliminate the luminous lamps and lanterns of side and go into produced glare of light side and the obvious problem of granular sensation for the light-emitting of lamps and lanterns is soft, has reduced the glare of visualing, has improved the illumination comfort level of lamps and lanterns.

Description

Lamp fitting

Technical Field

The utility model relates to a lamp belongs to the lighting technology field.

Background

The existing side-emitting lamp is characterized in that an LED light source is attached to the side, light is emitted through a light guide plate, but the light emitting mode of the side-emitting lamp can cause the light guide plate close to one side of the LED light source to generate obvious glare and granular sensation, and the overall effect of the lamp is seriously influenced.

And the common mode of solving the glare on the market at present includes at the light guide plate plus diffuser plate, or adds anti-glare film, or the frame that increases lamps and lanterns shelters from, or small-size light source carries out closely arranging, but above-mentioned scheme can reduce the light efficiency, and whole unaesthetic.

Accordingly, it is desirable to provide a lamp to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lamps and lanterns can anti-dazzle and eliminate the sense of particles.

In order to realize the above-mentioned purpose, the utility model provides a lamp, which comprises a housin, be equipped with the light guide plate in the casing and center on and the orientation the light source module that the light guide plate set up, the light guide plate below is equipped with the diffuser plate, the diffuser plate includes first optical part and second optical part, second optical part is around setting up the first optical part outside, the second optical part orientation one side of light guide plate is equipped with third optical part, third optical part includes the arch of a plurality of close pavements setting, the light via that the light source module sent after the surface refraction of third optical part, through the diffuser plate jets out.

As a further improvement of the present invention, the light source module is in the orthographic projection of the plane where the second optical portion is located does not overlap with the second optical portion.

As a further improvement of the present invention, the diffuser plate is circular, the first optical portion is circular and coaxially disposed with the diffuser plate, and the second optical portion is annular and surrounds the first optical portion.

As a further improvement of the present invention, the protrusion is a cone, the cone array is arranged and the cone is arranged along the surface of the second optical portion is distributed in an annular shape.

As a further improvement of the utility model, the cone is a rectangular pyramid, and the included angle theta between the opposite edges of the rectangular pyramid is

Wherein, a and b are the side length of the bottom surface of the rectangular pyramid, h is the height of the rectangular pyramid, the side length of the bottom surface of the rectangular pyramid is that the included angle β between the two opposite side faces of a is 2arctan (b/2h), and the side length of the bottom surface of the rectangular pyramid is that the included angle γ between the two opposite side faces of b is 2arctan (a/2 h).

As a further improvement of the present invention, the third optical portion is in a zigzag shape and the protrusion is a rack, and the rack is extended in the radial direction of the diffusion plate.

As a further improvement, the utility model also comprises a frame fixedly connected with the casing, the frame sets up the bottom of casing is equipped with and exposes the opening of diffuser plate, the frame to be equipped with annular extension in the opening, the internal diameter of extension is less than the diameter of diffuser plate.

As a further improvement, the light guide plate with be equipped with the radiator between the casing, the radiator shroud is established the outside of light guide plate, the light source module sets up the inner wall and the orientation of radiator the light guide plate sets up.

As a further improvement of the present invention, the light guide plate is provided with a reflector between the heat sinks.

As a further improvement, the through-hole that the radiator switched on has been seted up on the casing with, the radiator is followed the through-hole is equipped with the bulge that the protrusion set up, the bulge certainly the casing orientation the inboard of radiator extends to the outside of casing.

The beneficial effects of the utility model are that: the utility model discloses can eliminate the luminous lamps and lanterns of side and in the obvious problem of produced glare and granular sensation of income light side for the light-emitting of lamps and lanterns is soft, has reduced the glare of visualing, has improved the illumination comfort level of lamps and lanterns.

Drawings

Fig. 1 is an exploded schematic view of the lamp of the present invention.

Fig. 2 is a schematic sectional view of the lamp with the heat sink removed.

Fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

Fig. 4 is a perspective schematic view of a cross-sectional structure of the lamp part structure of the present invention.

Fig. 5 is an enlarged schematic view of the structure at B in fig. 4.

Fig. 6 is a schematic structural diagram of an embodiment of a diffuser plate of a lamp according to the present invention.

Fig. 7 is an enlarged schematic view of the structure at C in fig. 6.

Fig. 8 is a schematic structural diagram of another embodiment of a diffuser plate of a lamp of the present invention.

Fig. 9 is an enlarged schematic view of the structure at D in fig. 8.

Fig. 10 is a schematic view of an angle structure of a lamp in which the third optical portion is a rectangular pyramid, where fig. 10(a) is an angle between two opposite side surfaces of the rectangular pyramid with a side length of a bottom surface a, fig. 10(b) is an angle between opposite edges of the rectangular pyramid, and fig. 10(c) is an angle between two opposite side surfaces of the rectangular pyramid with a side length of b.

Fig. 11(a), 11(b) and 11(c) in fig. 11 are schematic diagrams of the optical path structures of the rectangular pyramid in fig. 10 at different angles.

Reference numerals:

100. a light fixture;

10. a housing; 10. a through hole; 20. a heat sink; 21. a projection; 30. a reflector; 40. a light guide plate; 50. a light source module; 60. a diffusion plate; 61. a first optic portion; 62. a second optical portion; 63. a third optical portion; 70. a frame; 71. an extension portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In order to avoid obscuring the present invention with unnecessary details, it should be noted that only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.

In addition, it should be further noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1 to 11, the present invention discloses a lamp 100, the lamp 100 is a side-emitting type lamp 100, and the light guide plate 40 is disposed in the lamp 100, the light guide plate 40 is used for reflecting a line light source, so that the reflected light is diffused toward each angle, and then is converted into a surface light source and is emitted from the front of the light guide plate 40, so that the light guide plate 40 emits light uniformly. For clarity of description, the following description section will explain the specific structure of the luminaire 100 in detail.

As shown in fig. 1 to 5, the luminaire 100 sequentially includes a housing 10, a heat sink 20, a reflector 30, a light guide plate 40, a light source module 50, a diffuser 60, and a frame 70 from top to bottom, wherein the frame 70 and the housing 10 are fixedly connected to each other, so that the heat sink 20, the reflector 30, the light guide plate 40, the light source module 50, and the diffuser 60 are accommodated between the housing 10 and the frame 70.

It should be noted that, because lamps and lanterns 100 are the side-lighting formula, light source module 50 encircles light guide plate 40 sets up in the preferred embodiment of the utility model, light guide plate 40 is preferably circular, light source module 50 includes a plurality of led lamp pearls, and a plurality of led lamp pearls are the annular and distribute and be in the circumference lateral wall of light guide plate 40, and the luminous direction of every led lamp pearl all faces the lateral wall of light guide plate 40 to the luminous direction of every led lamp pearl all follows the radial direction setting of light guide plate 40, the thickness of light guide plate 40 is greater than the thickness of led lamp pearl in this side. Of course, in other embodiments of the present invention, the light guide plate 40 includes but is not limited to a square shape or other shapes, and may be disposed as required, without any limitation.

The heat sink 20 is made of a metal heat conducting material and covers the outer side of the light guide plate 40, the light source module 50 further comprises a substrate which is arranged in an annular shape, the led lamp beads are arranged on the substrate, preferably, the substrate is attached to the heat sink 20 and is arranged on the inner side wall of the heat sink 20, so that the light source module 50 is arranged between the inner side wall of the heat sink 20 and the outer side wall of the light guide plate 40, heat generated by the light source module 50 in the working process is transferred to the heat sink 20 through the substrate, light generated by the light source module 50 is an annular linear light source and is transmitted into the light guide plate 40 from the side wall of the light guide plate 40, and finally is emitted from the bottom surface of the light guide plate 40.

On the basis of the above embodiment, the reflector 30 is disposed between the light guide plate 40 and the heat sink 20, the reflector 30 may be a reflective paper or a reflective film, and the reflector 30 is attached to the inner wall of the heat sink 20, it can be understood that the reflector 30 mainly faces the bottom surface of one side of the light guide plate 40 facing the heat sink 20, so that the light of the light source module 50 can be emitted from the bottom surface of the other side of the light guide plate 40 as much as possible, so as to improve the light efficiency.

Particularly, the casing 10 is provided with a through hole 11 communicating with the heat sink 20, the heat sink 20 is provided with a protruding portion 21 protruding from the through hole 11, and the protruding portion 21 extends from the casing 10 to the outside of the casing 10 toward the inside of the heat sink 20, so that the heat sink 20 can directly contact with the external environment, thereby improving the heat dissipation efficiency. It is understood that a fan or a heat sink fin may be further provided at an outer side of the protrusion 21, so as to enhance the heat dissipation efficiency of the heat sink 20.

In order to make the light emitted from the light guide plate 40 more uniform, the diffuser 60 is disposed below the light guide plate 40, and when the light guide plate 40 is circular, the diffuser 60 is also circular, and the light guide plate 40 and the diffuser 60 have the same size, so that the orthographic projection of the light source module 50 on the plane of the second optical portion 62 does not overlap with the second optical portion 62.

The frame 70 is disposed at the bottom of the housing 10 and has an opening exposing the diffuser plate 60, and the frame 70 has an annular extension 71 disposed in the opening, and the extension 71 has an inner diameter smaller than the diameter of the diffuser plate 60, so that the extension 71 can support the diffuser plate 60 and prevent the diffuser plate 60 from loosening relative to the light guide plate 40.

As shown in fig. 6 to 9, it should be noted that, since the light source module 50 is closer to the periphery of the light guide plate 40, the light emitted through the light guide plate 40 will have a higher intensity at the periphery of the diffusion plate 60, and may have a granular feeling. Further, the diffusion plate 60 includes a first optical portion 61 and a second optical portion 62, the second optical portion 62 is disposed around the first optical portion 61, a third optical portion 63 is disposed on one side of the second optical portion 62 facing the light guide plate 40, the third optical portion 63 is used for further mixing light on the outer circumference of the diffusion plate 60, and the light emitted from the light source module 50 is refracted by the surface of the third optical portion 63 and then emitted through the diffusion plate 60. In addition, when the diffusion plate 60 is circular, the first optical portion 61 is circular and is coaxially disposed with the diffusion plate, and the second optical portion 62 is annular and is disposed around the first optical portion 61, in other embodiments, the diffusion plate 60 is not limited to a square shape, and in this case, the first optical portion 61 is also square, and is not particularly limited.

As shown in fig. 6 to 11, specifically, the third optical portion 63 includes a plurality of protrusions which are densely arranged, the protrusions may be cones, the cones are arranged in an array and annularly distributed along the surface of the second optical portion 62, and the cones are preferably rectangular pyramids, and an included angle θ between opposite edges of each pyramid is equal to

Wherein a and b are the side length of the bottom surface of the rectangular pyramid respectively, h is the height of the rectangular pyramid, the side length of the bottom surface of the rectangular pyramid is that the included angle β of the two opposite side surfaces of a is 2arctan (b/2h), and the side length of the bottom surface of the rectangular pyramid is that the included angle γ of the two opposite side surfaces of b is 2arctan (a/2 h). In other embodiments of the present invention, the cone includes, but is not limited to, a triangular pyramid, a pentagonal pyramidOr hexagonal pyramid, etc., without limitation. Of course, the third optical portion 63 may have a saw-tooth shape and the protrusions may be racks extending in the radial direction of the diffuser plate 60, but not limited thereto.

To sum up, the utility model discloses can eliminate the luminous lamps and lanterns 100 of side and go into produced glare of light side and the obvious problem of granular sensation for lamps and lanterns 100's light-emitting is soft, has reduced the glare of visualing, has improved lamps and lanterns 100's illumination comfort level.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A luminaire (100) characterized by: the LED light source module comprises a shell (10), wherein a light guide plate (40) and a light source module (50) which surrounds and faces the light guide plate (40) are arranged in the shell (10), a diffusion plate (60) is arranged below the light guide plate (40), the diffusion plate (60) comprises a first optical portion (61) and a second optical portion (62), the second optical portion (62) surrounds and is arranged on the outer side of the first optical portion (61), a third optical portion (63) is arranged on one side, facing the light guide plate (40), of the second optical portion (62), the third optical portion (63) comprises a plurality of densely paved protrusions, and light emitted by the light source module (50) is refracted through the surface of the third optical portion (63) and then emitted through the diffusion plate (60).

2. The luminaire (100) of claim 1, wherein: the orthographic projection of the light source module (50) on the plane of the second optical part (62) is not overlapped with the second optical part (62).

3. The luminaire (100) of claim 1, wherein: the diffusion plate (60) is circular, the first optical part (61) is circular and is coaxially arranged with the diffusion plate (60), and the second optical part (62) is annular and is arranged around the first optical part (61).

4. The luminaire (100) of claim 3, wherein: the protrusions are cones which are arranged in an array and are annularly distributed along the surface of the second optical part (62).

5. The luminaire (100) of claim 4, wherein: the cone is a rectangular pyramid, and the included angle theta between the opposite edges of the rectangular pyramid is

Wherein a and b are the side length of the bottom surface of the rectangular pyramid respectively, h is the height of the rectangular pyramid, the side length of the bottom surface of the rectangular pyramid is that the included angle β of the two opposite side surfaces of a is 2arctan (b/2h), and the side length of the bottom surface of the rectangular pyramid is that the included angle γ of the two opposite side surfaces of b is 2arctan (a/2 h).

6. The luminaire (100) of claim 3, wherein: the third optical part (63) is in a sawtooth shape, and the protrusions are racks which extend in the radial direction of the diffusion plate (60).

7. The luminaire (100) of claim 3, wherein: the diffuser plate is characterized by further comprising a frame (70) fixedly connected with the shell (10), wherein the frame (70) is arranged at the bottom of the shell (10) and provided with an opening exposing the diffuser plate (60), an annular extending portion (71) is arranged in the opening of the frame (70), and the inner diameter of the extending portion (71) is smaller than the diameter of the diffuser plate (60).

8. The luminaire (100) of claim 1, wherein: a radiator (20) is arranged between the light guide plate (40) and the shell (10), the radiator (20) covers the outer side of the light guide plate (40), and the light source module (50) is arranged on the inner wall of the radiator (20) and faces the light guide plate (40).

9. The luminaire (100) of claim 8, wherein: a reflector (30) is disposed between the light guide plate (40) and the heat sink (20).

10. The luminaire (100) of claim 8, wherein: the radiator is characterized in that a through hole (11) communicated with the radiator (20) is formed in the shell (10), the radiator (20) is provided with a protruding portion (21) protruding from the through hole (11), and the protruding portion (21) extends to the outer side of the shell (10) from the shell (10) towards the inner side of the radiator (20).