WO2022161477A1

WO2022161477A1 - Panel lamp

Info

Publication number: WO2022161477A1
Application number: PCT/CN2022/074804
Authority: WO
Inventors: 衣彬; 梁中源; 杨小明; 刘宗源; 张家源
Original assignee: 漳州立达信光电子科技有限公司
Priority date: 2021-02-01
Filing date: 2022-01-28
Publication date: 2022-08-04
Also published as: CN214425903U

Abstract

A panel lamp, related to the technical field of lighting lamps and comprising a support frame (1), an upper light guide plate (2), a lower light guide plate (3), an upper light source member (4), and a lower light source member (5). The upper light guide plate (2) and the lower light guide plate (3) are sequentially arranged in the support frame (1) from top to bottom. A first microstructure (201) is provided on the surface of the upper light guide plate (2), and a second microstructure (301) is provided on the lower light guide plate (3). The upper light source member (4) and the lower light source member (5) are arranged in the support frame (1). The upper light source member (4) is located on the side surface of the upper light guide plate (2), and the lower light source member (5) is located on the side surface of the lower light guide plate (3). According to the panel lamp, the upper light guide plate (2) and lower light guide plate (3) are overlapped, such that the blue sky imitating patterns and the white cloud imitating patterns are overlapped, the blue sky and white cloud effect is achieved.

Description

a panel light

CROSS-REFERENCE TO RELATED APPLICATIONS

The present disclosure claims the priority of the Chinese Patent Application No. 202120284288.5 filed with the State Intellectual Property Office of China on Feb. 1, 2021, and entitled "A PANEL LAMP", the entire contents of which are incorporated in this disclosure by reference.

technical field

The present disclosure belongs to the technical field of lighting lamps, and more particularly, to a panel lamp.

Background technique

With the continuous development and expansion of my country's manufacturing industry, various products have appeared in people's daily production and life. The panel light is a high-end indoor lighting fixture. The light source is LED. The whole lighting design is beautiful, concise and luxurious. It not only has good lighting effect, but also brings beautiful feeling to people.

The panel light has a unique design. The light passes through the high transmittance light guide plate to form a uniform flat luminous effect. The light is soft, comfortable and bright, which can effectively relieve eye fatigue. The panel light is also radiation-proof and will not irritate the skin of pregnant women, the elderly, and children. However, in order to realize scenes such as blue sky and white clouds, sunset or cloudy sky, the existing panel lights usually adopt the principle of color printing or Rayleigh scattering. The color printing method has the problem of unreal light output, and the Rayleigh scattering method has the problem of high cost.

SUMMARY OF THE INVENTION

The purpose of the present disclosure is to provide a panel lamp, which aims to solve the problems of unreal light emitting effect and high cost of the existing panel lamp.

In order to achieve the above purpose, the technical solution adopted in the present disclosure is to provide a panel lamp, comprising: a support frame, an upper light guide plate, a lower light guide plate, an upper light source part and a lower light source part; the upper light guide plate and the lower layer The light guide plates are sequentially arranged in the support frame from top to bottom, the surface of the upper layer light guide plate is provided with a first microstructure, and the lower layer light guide plate is provided with a second microstructure; the upper layer light source element and the The lower light source components are all arranged in the support frame, the upper light source components are located on the side of the upper light guide plate, and the lower light source components are located on the side of the lower light guide plate; The fixing seat of the upper light source part and the lower light source part, an elastic part is arranged between the fixing seat and the supporting frame, and the elastic part is located in the fixing seat away from the upper light source part or the One side of the lower light source.

As another embodiment of the present disclosure, the upper light source element is arranged on at least one side of the upper light guide plate.

As another embodiment of the present disclosure, the outer side of the cross-section of the upper-layer light guide plate is formed by a plurality of straight line segments or curvilinear segments enclosed in turn from end to end.

As another embodiment of the present disclosure, the upper surface of the upper light guide plate is provided with a reflective surface.

As another embodiment of the present disclosure, the lower light source element and the upper light source element are staggered or flush with each other.

As another embodiment of the present disclosure, a support plate for supporting the lower light source element is provided on the fixing base.

As another embodiment of the present disclosure, a panel light further includes a back plate, the back plate is connected with the support frame by fasteners, and is used for pressing and fixing the upper light guide plate and the lower light guide plate in the support frame.

As another embodiment of the present disclosure, both the upper light guide plate and the lower light guide plate include at least one light guide plate.

The beneficial effect of the panel lamp provided by the present disclosure is that compared with the prior art, the present disclosure provides a panel lamp with two layers of light guide plates (ie, an upper layer of light guide plates and a lower layer of light guide plates) arranged in the support frame, and the The upper layer light source part and the lower layer light source part are respectively arranged on the side surfaces of the upper layer light guide plate and the lower layer light guide plate. After the light emitted by the upper light source part enters the upper layer light guide plate, it is emitted from the lower surface of the upper layer light guide plate through the first microstructure to form a blue sky pattern; after the light emitted by the lower layer light source part enters the lower layer light guide plate, it passes through the first The two microstructures are emitted from the lower surface of the lower light guide plate to form the imitation white cloud pattern; through the superposition of the upper layer light guide plate and the lower layer light guide plate, the imitation blue sky pattern and the imitation white cloud pattern are superimposed on each other to achieve the effect of blue sky and white clouds, and the structure is simple, Low cost and realistic effect.

Description of drawings

In order to explain the technical solutions in the embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only for the present disclosure. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a partial cross-sectional structural schematic diagram of a panel light provided by an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of an upper-layer light guide plate and an upper-layer light source device provided by an embodiment of the present disclosure;

3 is a schematic structural diagram of a lower-layer light guide plate and a lower-layer light source device according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a fixing base provided by an embodiment of the present disclosure.

In the figure: 1, supporting frame; 101, heat dissipation cavity; 102, fixing seat; 103, first accommodating cavity; 104, second accommodating cavity; 105, elastic member; 106, supporting plate; 2, upper light guide plate; 201 202, reflective paper; 3, lower light guide plate; 301, second microstructure; 4, upper light source element; 5, lower light source element; 6, backplane.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present disclosure more clear, the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

Please refer to FIG. 1 to FIG. 4 together, and now a panel light provided by the present disclosure will be described. The panel light includes: a supporting frame 1, an upper light guide plate 2, a lower light guide plate 3, an upper light source part 4 and a lower light source part 5; the upper light guide plate 2 and the lower light guide plate 3 are arranged in order from top to bottom. In the support frame 1, the surface of the upper light guide plate 2 is provided with a first microstructure 201, and the lower light guide plate 3 is provided with a second microstructure 301; , the upper light source part 4 is located on the side of the upper light guide plate 2, and the lower light source part 5 is located on the side of the lower light guide plate 3; An elastic member 105 is arranged between the 102 and the supporting frame 1 , and the elastic member 105 is located on the side of the fixing base 102 away from the upper light source element 4 or the lower light source element 5 .

A panel lamp provided by the present disclosure, compared with the prior art, is provided with two layers of light guide plates (ie, the upper layer light guide plate 2 and the lower layer light guide plate 3) in the support frame body 1, and the upper layer light source element 4 and the lower layer light source The parts 5 are respectively arranged on the sides of the upper light guide plate 2 and the lower light guide plate 3 . After the light emitted by the upper light source element 4 enters the upper light guide plate 2, it is emitted from the lower surface of the upper light guide plate 2 through the first microstructure 201, thereby forming a blue sky pattern; the light emitted by the lower light source element 5 enters the lower layer guide plate. After the light plate 3, it is emitted from the lower surface of the lower light guide plate 3 through the second microstructure 301, thereby forming an imitation white cloud pattern. The effect of blue sky and white clouds is realized, the structure is simple, the cost is low, and the effect is realistic.

In this embodiment, the supporting frame body 1 is an aluminum frame, which reduces the overall weight of the panel light and enhances the lamp body strength of the entire light. White light sources with two color temperatures are distributed on the lower light source element 5. After the white light emitted by the lower light source element 5 is incident on the lower light guide plate 3, it is emitted from the lower surface of the lower light guide plate 3 through the second microstructure 301, and is passed through the laser, hot pressing, etc. , injection molding, screen printing, etc., to form specific structures and textures on the surface of the lower light guide plate 3 to control the shape, spacing, arrangement and surface treatment of the second microstructure 301, so that the energy distribution of white light on the surface of the lower light guide plate 3 And the direction of the light is not exactly the same, showing a shape similar to a white cloud. Blue and green light sources are distributed on the upper light source element 4. The blue light and green light emitted by the upper light source element 4 are mixed and then injected into the upper light guide plate 2, and then emitted from the lower surface of the upper light guide plate 2 through the first microstructure 201. Through laser, hot pressing, injection molding, screen printing, etc., specific structures and patterns are formed on the surface of the upper light guide plate 2 to control the shape, spacing, arrangement and surface treatment of the first microstructures 201, so that the blue and green light The energy distribution and light emitting direction of the mixed light in the upper light guide plate 2 are not exactly the same, showing a shape similar to a blue sky background. When the upper light guide plate 2 and the lower light guide plate 3 emit light at the same time, the light emitted from the upper light guide plate 2 enters the human eye through the lower light guide plate 3, and the patterns of imitation white clouds and imitation blue sky can be seen visually at the same time. In front of the pattern, a three-dimensional light-emitting effect imitating the blue sky and white clouds is formed. The panel light of the present disclosure can also realize sunset or cloudy scenes by changing the light source color of the lower light source part 5 or the upper layer light source part 4 . The fixing base 102 is provided with a first accommodating cavity 103 and a second accommodating cavity 104 for installing the upper light source element 4 and the lower light source element 5 . In this embodiment, the fixing seat 102 is a long strip. The first accommodating cavity 103 and the second accommodating cavity 104 are arranged along the length direction of the fixing base 102, and the first accommodating cavity 103 and the second accommodating cavity 104 are separated from each other, effectively separating the upper light source device 4 and the lower light source device 5, The light emitted from the upper layer light source device 4 and the lower layer light source device 5 are prevented from affecting each other. The elastic member 105 is rubber or polyurethane. The elastic member 105 is fixed on the outer wall of the fixing base 102 by means of bonding. By arranging the elastic member 105 between the fixing base 102 and the supporting frame 1, the upper light source element 4 and the lower light source element 5 on the fixing base 102 can be buffered and protected to avoid the upper light source element 4 and the lower light source element 5. The violent shaking is beneficial to prolong the service life of the layer light source device and the lower layer light source device 5 .

As a specific embodiment of a panel light provided by the present disclosure, please refer to FIG. 1 and FIG. 2 , the upper light source element 4 is arranged on at least one side of the upper light guide plate 2 . In this embodiment, the upper light source components 4 are symmetrically arranged on both sides of the upper light guide plate 2, so the uniformity of the light entering the upper light guide plate 2 is ensured, and the light output effect of the whole lamp is improved. The upper layer light source element 4 may also be arranged on one side or around the upper layer light guide plate 2 .

As a specific embodiment of a panel light provided by the present disclosure, please refer to FIG. 2 , the outer side of the cross-section of the upper light guide plate 2 is formed by several straight line segments or curved segments enclosed end to end in sequence. In this embodiment, the shapes of the upper light guide plate 2 and the lower light guide plate 3 may be the same or different. The shape of the upper light guide plate 2 or the lower light guide plate 3 may be other irregular shapes besides square or circle.

As a specific embodiment of a panel light provided by the present disclosure, please refer to FIG. In this embodiment, the heat dissipation cavity 101 is a closed cavity, and the heat dissipation of the lower light source device 5 and the upper layer light source device 4 is realized rapidly by means of heat conduction, which is beneficial to prolong the service life of the lower layer light source device 5 and the upper layer light source device 4 and reduce the The maintenance cost of this panel light.

As a specific implementation manner of a panel light provided by the present disclosure, please refer to FIG. 1 , the upper surface of the upper light guide plate 2 is provided with a reflective surface. In this embodiment, the high reflectivity of the reflective surface is used to improve the light emitting effect of the panel lamp. A reflective paper 202 is provided on the upper surface of the upper light guide plate 2 , and the lower surface of the reflective paper 202 is a reflective surface. Glue is applied between the reflective paper 202 and the upper light guide plate 2 . The glue is transparent glue, which will not absorb the light emitted by the lower light source device 5 and the upper light source device 4 , and does not need to be placed between the reflective paper 202 and the upper light guide plate 2 . Fasteners are installed on the top, which reduces the number of parts and makes the structure of the whole lamp more compact.

As a specific embodiment of a panel light provided by the present disclosure, please refer to FIG. 1 and FIG. 4 , the lower light source element 5 and the upper light source element 4 are staggered or flush with each other. In this embodiment, the lower layer light guide plate 3 and the upper layer light guide plate 2 have the same shape, and the outer contour of the lower layer light guide plate 3 is located inside the outer contour of the upper layer light guide plate 2, so the lower layer light source device 5 and the upper layer light source device 4 are in the horizontal direction. The upper layers are staggered from each other, that is, the lower layer light source device 5 is located inside the upper layer light source device 4, so as to avoid mutual influence between the light emitted by the lower layer light source device 5 and the upper layer light source device 4.

As a specific implementation manner of a panel light provided by the present disclosure, please refer to FIG. 1 and FIG. 4 , the fixing base 102 is provided with a support plate 106 for supporting the lower light source element 5 . In this embodiment, the support plate 106 is located inside the fixing seat 102 . The support plate 106 and the fixing seat 102 are integrally formed, and the integrally formed structure has higher strength and is more durable.

As a specific embodiment of a panel light provided by the present disclosure, please refer to FIG. 1 , a panel light further includes a backboard 6, which is connected with the support frame 1 by fasteners for guiding the upper layer The light plate 2 and the lower light guide plate 3 are pressed and fixed in the support frame 1 . In this embodiment, the back plate 6 is located above the upper light guide plate 2 . The back plate 6 is fixed on the support frame body 1 by screws, and at the same time, the upper layer light guide plate 2 and the lower layer light guide plate 3 are pressed and fixed in the support frame body 1 . With the above structure, there is no need to install screws on the upper light guide plate 2 and the lower light guide plate 3, which not only reduces the number of parts, but also facilitates the disassembly and assembly of the upper light guide plate 2 and the lower light guide plate 3, and improves the disassembly efficiency.

As a specific embodiment of a panel light provided by the present disclosure, both the upper light guide plate 2 and the lower light guide plate 3 include at least one light guide plate. In this embodiment, the light guide plate in the panel lamp may be two layers or more than two layers.

The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present disclosure shall be included in the protection of the present disclosure. within the range.

Claims

A panel lamp is characterized in that it comprises: a supporting frame, an upper light guide plate, a lower light guide plate, an upper light source part and a lower light source part; the upper light guide plate and the lower light guide plate are arranged in order from top to bottom at the In the support frame, the surface of the upper light guide plate is provided with a first microstructure, and the lower light guide plate is provided with a second microstructure; the upper light source part and the lower light source part are both arranged on the support frame Inside the body, the upper light source part is located on the side of the upper light guide plate, and the lower light source part is located on the side of the lower light guide plate; the support frame is provided with a device for installing the upper light source part and the lower light source An elastic piece is arranged between the fixing base and the supporting frame, and the elastic piece is located on the side of the fixing base away from the upper light source piece or the lower light source piece.
The panel lamp according to claim 1, wherein the upper light source element is arranged on at least one side of the upper light guide plate.
The panel light according to claim 1, wherein the outer side of the cross-section of the upper light guide plate is formed by a plurality of straight line segments or curved segments enclosed end to end in sequence.
The panel lamp of claim 1, wherein the upper surface of the upper light guide plate is provided with a reflective surface.
The panel lamp of claim 1, wherein the lower light source element and the upper light source element are staggered or flush with each other.
The panel light according to claim 1, wherein a support plate for supporting the lower light source element is provided on the fixed seat.
The panel light according to claim 1, further comprising a back plate, the back plate and the supporting frame are connected by fasteners for connecting the upper light guide plate and the lower light guide plate The light plate is pressed and fixed in the support frame.
The panel light according to claim 1, wherein the upper light guide plate and the lower light guide plate both comprise at least one light guide plate.