Ultra-thin panel lamp free of lens light distribution

Abstract

The ultrathin panel lamp free of lens light distribution comprises a base plate, a flexible lamp strip and a lampshade, a power source driver is arranged on the base plate, the flexible lamp strip is distributed on the base plate in a plane spiral shape, and the lampshade is arranged on the base plate to seal the flexible lamp strip. According to the ultrathin panel lamp free of lens light distribution, the mode that the flexible lamp strip is distributed in a plane spiral shape is adopted to replace a traditional optical scheme that an LED light source and a light distribution lens are adopted, good light-emitting efficiency and light-emitting uniformity are achieved, the light-emitting effect is good, the structure of the ultrathin panel lamp free of lens light distribution is simple, the height of the whole lamp is small, and the production cost and the storage and transportation cost are greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ceiling lamps, and in particular to an ultra-thin panel lamp with lens-free light distribution. Background Art

[0002] Ceiling lamps are important lighting fixtures for home lighting, accounting for more than 50% of the home lighting market. It is the market segment with the greatest competition among major lighting manufacturers. With the continuous advancement and maturity of LED lighting technology, ceiling lamps with LED as the light source have basically completely replaced traditional ceiling lamps with tungsten filament lamps as the light source.

[0003] Due to the backwardness of lens light distribution technology, LED ceiling lamps used side-lighting optical solutions in the early stages. They needed to be equipped with high-cost light guide plates to achieve the desired lighting effects, and the luminous efficiency was extremely low. Therefore, this optical solution has never been truly applied to home lighting.

[0004] In the later stage, thanks to the continuous development of lens light distribution technology, the optical solution of LED light source and light distribution lens has become the mainstream solution of LED ceiling lamps. However, this optical solution needs to sacrifice a lot of product space to achieve the ideal optical effect. The overall height of the existing ceiling lamps is still more than 30mm. With other fixed structures, the height of the entire ceiling lamp is still more than 50mm. The overly thick ceiling lamp structure will have an adverse effect on the overall environment of the lighting place, especially in some spaces with low floor heights. It is particularly depressing, and it also causes the packaging cost and transportation cost to remain high. At the same time, the optical solution of LED light source and light distribution lens also requires a complex patch process, which has a high cost and greatly increases the production cost of the enterprise. Summary of the invention

[0005] Based on this, it is necessary to provide an ultra-thin panel light with lens-free light distribution.

[0006] The technical solution of the present invention to solve the above technical problem is as follows: an ultra-thin panel light without lens light distribution, comprising:

[0007] A chassis, wherein a power supply driver is arranged on the chassis;

[0008] A flexible light strip, which is arranged on the chassis and is distributed in a plane spiral shape, and is electrically connected to the power driver;

[0009] A lampshade is arranged on the chassis and encloses the flexible light strip.

[0010] In one embodiment, the flexible light strip includes: a flexible circuit board, a fluorescent adhesive layer and a plurality of LED chips, the first surface of the flexible circuit board is connected to the chassis, and the flexible circuit board is electrically connected to the power driver, each of the LED chips is evenly arranged on the second surface of the flexible circuit board, the fluorescent adhesive layer is connected to the second surface of the flexible circuit board, and the fluorescent adhesive layer covers the outer surface of each of the LED chips.

[0011] In one embodiment, a thermal conductive adhesive layer is disposed on the first surface of the flexible circuit board.

[0012] In one embodiment, the flexible circuit board is provided with connection terminals, and the flexible circuit board is electrically connected to the power driver through the connection terminals.

[0013] In one embodiment, the power driver is provided with an input terminal and an output terminal, the output terminal is electrically connected to the connection terminal, and the input terminal is used to be electrically connected to a power source.

[0014] In one embodiment, a connecting hole is provided on the chassis.

[0015] In one embodiment, a mounting buckle is provided on the power driver, a buckle block is provided on the chassis, and the mounting buckle is buckled on the buckle block.

[0016] In one embodiment, the chassis is provided with an internal thread, the lampshade is provided with an external thread, and the chassis is threadably connected to the lampshade via the internal thread and the external thread.

[0017] In one embodiment, a plurality of side light outlet holes are formed on the chassis.

[0018] In one embodiment, a plurality of reinforcing ribs are provided on the chassis.

[0019] The beneficial effects of the present invention are as follows: the present invention provides an ultra-thin panel lamp with lens-free light distribution, in which a power driver is arranged on the chassis, a flexible light strip is arranged on the chassis in a planar spiral distribution, and a lampshade is arranged on the chassis to seal the flexible light strip. In this way, the flexible light strip can be distributed in a planar spiral to replace the optical solution of the traditional LED light source and the light distribution lens, which not only has good luminous efficiency and luminous uniformity, and good luminous effect, but also the ultra-thin panel lamp with lens-free light distribution has a simple structure and a small height of the whole lamp, which greatly reduces the production cost and the storage and transportation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic structural diagram of the ultra-thin panel light with lens-free light distribution according to the present invention;

[0022] Figure 2 This is a schematic structural diagram of the ultra-thin panel light with lens-free light distribution according to the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional exploded structure of the ultra-thin panel light with lens-free light distribution according to the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional exploded structure of the ultra-thin panel light with lens-free light distribution according to the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the chassis and the flexible light strip of the present invention;

[0026] Figure 6 A spatial light emission distribution trajectory diagram of the light of the ultra-thin panel lamp without lens light distribution of the present invention;

[0027] Figure 7 The spatial light emission distribution trajectory diagram of the light of the traditional LED light source and the light distribution lens solution;

[0028] Figure 8 The incident irradiance diagram of the lampshade surface of the ultra-thin panel lamp with lens-free light distribution of the present invention;

[0029] Fig. 9 This is the incident irradiance diagram of the traditional LED light source and light distribution lens solution;

[0030] Fig.10 The incident luminous flux and uniformity diagram of the lampshade surface of the ultra-thin panel lamp with lens-free light distribution of the present invention;

[0031] Fig.11 This is a diagram of the incident luminous flux and uniformity on the lampshade surface of the traditional LED light source and light distribution lens solution.

[0032] In the attached drawings, 10, ultra-thin panel light with lens-free light distribution; 100, chassis; 110, connection hole; 120, snap-fit ​​block; 130, internal thread; 140, side light outlet hole; 150, reinforcing rib; 200, lampshade; 210, external thread; 300, flexible light strip; 310, flexible circuit board; 320, fluorescent adhesive layer; 330, LED chip; 340, connection terminal; 400, power driver; 410, input terminal; 420, output terminal; 430, mounting buckle. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] In one embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an ultra-thin panel lamp 10 with lens-free light distribution includes: a chassis 100, a flexible light strip 300 and a lampshade 200, wherein a power driver 400 is arranged on the chassis 100, the flexible light strip 300 is arranged on the chassis 100, and the flexible light strip 300 is arranged in a plane spiral distribution, the flexible light strip 300 is electrically connected to the power driver 400, and the lampshade 200 is arranged on the chassis 100, and the lampshade 200 is arranged to enclose the flexible light strip 300.

[0037] In this embodiment, a power driver 400 is arranged on the chassis 100. The power driver 400 can automatically adjust the output voltage and current to provide a stable power output for the flexible light strip 300. The flexible light strip 300 is arranged on the chassis 100 in a planar spiral shape and can be bent and wound into a planar spiral structure with different numbers of turns according to chassis 100 of different specifications to achieve an ideal lighting effect. The lampshade 200 is arranged on the chassis 100 to enclose the flexible light strip 300.

[0038] In the present embodiment, the ultra-thin panel lamp 10 with lens-free light distribution is a direct-down panel lamp. The flexible light strip 300 is distributed in a plane spiral shape to replace the optical solution of the traditional LED light source and the light distribution lens. The problems of complex processing technology, low light output efficiency and high storage and transportation costs of the optical solution of the LED light source and the light distribution lens can be solved. It not only has good luminous efficiency and luminous uniformity, and good luminous effect, but also the ultra-thin panel lamp 10 with lens-free light distribution has a simple structure and a small height of the whole lamp, which is 30 mm in total. This has great advantages in material cost, production process, performance reliability, finished product assembly, and warehousing and transportation, greatly reducing the production cost of the enterprise.

[0039] In one embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the flexible light strip 300 includes: a flexible circuit board 310, a fluorescent glue layer 320 and a plurality of LED chips 330, the first surface of the flexible circuit board 310 is connected to the chassis 100, and the flexible circuit board 310 is electrically connected to the power driver 400, each of the LED chips 330 is evenly arranged on the second surface of the flexible circuit board 310, the fluorescent glue layer 320 is connected to the second surface of the flexible circuit board 310, and the fluorescent glue layer 320 covers the outer surface of each of the LED chips 330. Specifically, each LED chip 330 is evenly encapsulated on the flexible circuit board 310, and then glue is dripped on the surface of each LED chip 330 to form a linear fluorescent glue layer 320 covering the LED chip 330, that is, the fluorescent glue layer 320 is a silicone strip containing fluorescent powder and an optical surface, which can seal and encapsulate the LED chip 330 and play a role in light splitting and insulation, and finally a flexible drip-glue COB light strip is obtained. By using the flexible light strip 300, the connection process of electrical appliances between boards can be eliminated, the connection reliability is strong, and the light distribution is uniform. It can be bent and wrapped into a planar spiral structure with different numbers of turns according to chassis 100 of different specifications to achieve an ideal lighting effect.

[0040] It is worth mentioning that Figure 6 This is the spatial light emission distribution trajectory diagram of the ultra-thin panel light without lens distribution. Figure 7The spatial light emission distribution trajectory diagram of the light of the traditional LED light source and the light distribution lens solution is Figure 6 and Figure 7 It can be seen that the light space light emission distribution trajectory of the ultra-thin panel light without lens light distribution is evenly distributed in the chassis, while the light space light emission distribution trajectory of the LED light source and light distribution lens solution is unevenly distributed in the chassis, with light distribution only in the lens light distribution area, and very sparse light distribution in other areas; Figure 8 This is the incident irradiance diagram of the lampshade surface of the ultra-thin panel light without lens. Fig. 9 is the incident irradiance diagram of the traditional LED light source and light distribution lens solution, Figure 8 and Fig. 9 It can be seen that the incident irradiance of the ultra-thin panel light without lens distribution is uniform and soft, while the incident irradiance of the LED light source and light distribution lens solution is unevenly distributed, with obvious peak and low peak areas; Fig.10 This is a diagram of incident luminous flux and uniformity on the surface of the lampshade of an ultra-thin panel light without lens. Fig.11 The incident luminous flux and uniformity diagram of the lampshade surface of the traditional LED light source and light distribution lens solution are shown in Figure 1. Fig.10 and Fig.11 It can be seen that the average incident irradiance of the ultra-thin panel light without lens distribution is 2.759, and the average incident irradiance of the LED light source and light distribution lens solution is 2.377.

[0041] In one embodiment, the cross-sectional shape of the fluorescent glue layer 320 is semicircular, so that the fluorescent glue layer 320 encapsulating the LED chip 330 has a good optical curved surface, which can better play the role of light splitting, so that the light emitted by the LED chip 330 is more evenly distributed. It is worth noting that the fluorescent glue layer 320 can be set with a corresponding color according to the specific requirements of the luminous color.

[0042] In one embodiment, a thermally conductive adhesive layer is provided on the first surface of the flexible circuit board 310. Specifically, by providing a thermally conductive adhesive layer on the flexible circuit board 310, the thermally conductive adhesive layer can not only stably bond and fix the flexible light strip 300 to the chassis 100, and can avoid the flexible light strip 300 from shifting, loosening and other undesirable phenomena, but also can play a role in heat conduction. The thermally conductive adhesive layer can be tightly attached to the first surface of the flexible circuit board 310, reduce thermal resistance, and increase heat dissipation area, so that the heat generated by the flexible light strip 300 during operation can be effectively exported, and the flexible light strip 300 can be prevented from being damaged by high temperature, ensuring that the flexible light strip 300 can work normally and stably, and ensuring the stability and reliability of the ultra-thin panel light 10 without lens light distribution.

[0043] In one embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the flexible circuit board 310 is provided with a connection terminal 340, and the flexible circuit board 310 is electrically connected to the power driver 400 through the connection terminal 340. Specifically, by providing the connection terminal 340 on the flexible circuit board 310, the connection terminal 340 is an input-end patch terminal, which can be directly connected to the power driver 400 in a terminal connection manner to achieve transmission of electrical signals. The assembly is extremely simple and convenient, and the flexible circuit board 310 and the power driver 400 are electrically connected without using an electrical welding process, which can achieve rapid installation and disassembly, and facilitate the maintenance and replacement of the flexible circuit board 310 and the power driver 400.

[0044] In one embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the power driver 400 is provided with an input terminal 410 and an output terminal 420, the output terminal 420 is electrically connected to the connection terminal 340, and the input terminal 410 is used to be electrically connected to the power supply. Specifically, by providing the input terminal 410 on the power driver 400, the input terminal 410 is an AC input terminal, and the external AC power supply is connected to the power driver 400 through the input terminal 410, that is, the power driver 400 can be connected to the external AC power supply through the input terminal 410 to realize the transmission and conversion of electric energy, and then connected to the connection terminal 340 on the flexible circuit board 310 through the output terminal 420, which can provide a stable power output for the flexible light strip 300. At the same time, the power driver 400 and the external power supply, and the power driver 400 and the flexible light strip 300 are electrically connected by terminal connection, which is convenient and fast during production assembly and terminal assembly.

[0045] In one embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the chassis 100 is provided with a connection hole 110. Specifically, by providing the connection hole 110 on the chassis 100, it is convenient for the external wiring terminal to pass through the connection hole 110 into the interior of the lens-free ultra-thin panel lamp 10, and then be plugged into the input terminal 410 on the power driver 400.

[0046] In one embodiment, Figure 3 and Figure 4As shown, the power driver 400 is provided with a mounting buckle 430, and the chassis 100 is provided with a snap-fit ​​block 120, and the mounting buckle 430 is snapped on the snap-fit ​​block 120. Specifically, the number of snap-fit ​​blocks 120 is set to three, and the three snap-fit ​​blocks 120 are evenly distributed on the chassis 100, and each snap-fit ​​block 120 is provided with a snap-fit ​​groove, and the number of mounting buckles 430 is set to three accordingly, and each mounting buckle 430 is snapped into a snap-fit ​​groove on a snap-fit ​​block 120, so that the power driver 400 can be quickly installed on the chassis 100.

[0047] In one embodiment, Figure 3 and Figure 4 As shown, the chassis 100 is provided with an internal thread 130 , and the lampshade 200 is provided with an external thread 210 . The chassis 100 is threadedly connected to the lampshade 200 via the internal thread 130 and the external thread 210 . Specifically, the material of the chassis 100 is polypropylene, and it is integrally injection molded with polypropylene material, has good mechanical strength and is not easy to deform. The internal thread 130 on the chassis 100 adopts a full-circle internal thread 130 design, and the lampshade 200 is prepared by an injection blow molding process, which greatly improves the light uniformity and appearance diversity of the lampshade 200. The external thread 210 on the lampshade 200 is correspondingly integrally injection molded to ensure its dimensional stability, making the connection between the chassis 100 and the lampshade 200 more stable. In this way, by connecting the internal thread 130 on the chassis 100 with the external thread 210 on the lampshade 200, the chassis 100 and the lampshade 200 can be connected together in a threaded connection manner, and the connection between the chassis 100 and the lampshade 200 is convenient and reliable.

[0048] In one embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the chassis 100 is provided with a plurality of side light exit holes 140. Specifically, the number of the side light exit holes 140 is set to four, and the four side light exit holes 140 are evenly distributed on the side walls around the chassis 100. When the lampshade 200 is installed on the chassis 100, the side walls of the lampshade 200 are aligned with the side light exit holes 140, that is, the light emitted by the flexible light strip 300 when working can be emitted outward through the side light exit holes 140, so that the back lighting atmosphere when the ultra-thin panel lamp 10 without lens light distribution is illuminated can be increased, the lighting range can be expanded, the light can be made more dispersed and uniform, the uniformity and comfort of the lighting can be improved, the waste of light in the space can be reduced, the utilization rate of light can be improved, and thus the lighting efficiency of the ultra-thin panel lamp 10 without lens light distribution can be improved.

[0049] In one embodiment, Figure 4As shown, the chassis 100 is provided with a plurality of reinforcing ribs 150. Specifically, the number of the reinforcing ribs 150 is set to four, and the four reinforcing ribs 150 are evenly distributed on the outer surface of the chassis 100, which can further enhance the mechanical strength of the chassis 100, and the structure is firm and reliable, so that the lampshade 200 can be stably installed on the chassis 100.

[0050] Compared with the prior art, the present invention has at least the following advantages:

[0051] The present invention provides an ultra-thin panel lamp with lens-free light distribution. A power driver is arranged on a chassis, a flexible light strip is arranged on the chassis in a planar spiral distribution, and a lampshade is arranged on the chassis to seal the flexible light strip. In this way, the flexible light strip can be distributed in a planar spiral to replace the optical solution of a traditional LED light source and a light distribution lens. The ultra-thin panel lamp with lens-free light distribution has good luminous efficiency and luminous uniformity, and a good luminous effect. In addition, the ultra-thin panel lamp with lens-free light distribution has a simple structure and a small height of the entire lamp, which greatly reduces the production cost and the storage and transportation cost.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of this application shall be based on the attached claims.

Claims

1. An ultra-thin panel light without lens distribution, characterized in that: include: A chassis, wherein a power supply driver is arranged on the chassis; A flexible light strip, which is arranged on the chassis and is distributed in a plane spiral shape, and is electrically connected to the power driver; A lampshade is arranged on the chassis and encloses the flexible light strip.

2. The ultra-thin panel light with lens-free light distribution according to claim 1, characterized in that: The flexible light strip includes: a flexible circuit board, a fluorescent glue layer and a plurality of LED chips, the first surface of the flexible circuit board is connected to the chassis, and the flexible circuit board is electrically connected to the power driver, each of the LED chips is evenly arranged on the second surface of the flexible circuit board, the fluorescent glue layer is connected to the second surface of the flexible circuit board, and the fluorescent glue layer covers the outer surface of each of the LED chips.

3. The ultra-thin panel light with lens-free light distribution according to claim 2, characterized in that: A thermal conductive adhesive layer is arranged on the first surface of the flexible circuit board.

4. The ultra-thin panel light with lens-free light distribution according to claim 2, characterized in that: The flexible circuit board is provided with connection terminals, and the flexible circuit board is electrically connected to the power driver through the connection terminals.

5. The ultra-thin panel light with lens-free light distribution according to claim 4, characterized in that: The power driver is provided with an input terminal and an output terminal, the output terminal is electrically connected to the connection terminal, and the input terminal is used to be electrically connected to a power source.

6. The ultra-thin panel light with lens-free light distribution according to claim 5, characterized in that: The chassis is provided with a connecting hole.

7. The ultra-thin panel light with lens-free light distribution according to claim 1, characterized in that: The power driver is provided with a mounting buckle, the chassis is provided with a buckling block, and the mounting buckle is buckled on the buckling block.

8. The ultra-thin panel light with lens-free light distribution according to claim 1, characterized in that: The chassis is provided with an internal thread, the lampshade is provided with an external thread, and the chassis is threadably connected with the lampshade via the internal thread and the external thread.

9. The ultra-thin panel light with lens-free light distribution according to claim 1, characterized in that: The chassis is provided with a plurality of side light outlet holes.

10. The ultra-thin panel light with lens-free light distribution according to claim 1, characterized in that: A plurality of reinforcing ribs are arranged on the chassis.

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