Panel lamp

Abstract

The embodiment of the invention discloses a panel lamp which comprises a shell, a light source module, a light source module and a light source module. A containing cavity is formed in the shell, a light-emitting opening is formed in one face of the shell, an installation opening is formed in the other face of the shell, and a heat dissipation opening is formed in the side face of the shell. The lighting plate assembly is arranged in the containing cavity, and the light-emitting surface of the lighting plate assembly faces the light-emitting opening; the heat dissipation plate is arranged in the containing cavity, located on the non-light-emitting face of the lighting plate assembly and provided with a heat dissipation channel, and the heat dissipation channel corresponds to the heat dissipation opening. The functional accessory comprises a fan assembly or a light source assembly, and the functional accessory is connected to the middle of the heat dissipation plate and corresponds to the mounting opening. And the heat dissipation effect and the lighting effect are improved.

Description

Technical Field

[0001] The invention relates to the field of lighting, and in particular to a panel lamp. Background Art

[0002] With the development of LED lighting technology, lamps have been widely used in homes, offices, and commercial places as efficient, energy-saving, and uniform lighting equipment. However, with the continuous upgrading of users' demand for lighting experience and the diversification of application scenarios, the design of traditional lamps has gradually failed to meet these needs. While meeting basic lighting functions, many existing lamps fail to effectively take into account other scalable needs, such as improving heat dissipation performance to increase service life or improving the ability to adjust the light source to adapt to different environmental needs.

[0003] There is currently no effective solution to the above problems in the prior art. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a panel lamp, which realizes effective heat dissipation through the heat dissipation channel of the heat dissipation plate, and performs large-area lighting through the lighting panel assembly. On this basis, a fan can be added and cooperated with the heat dissipation channel of the heat dissipation plate to improve the heat dissipation effect, and a light source can be added and cooperated with the lighting panel assembly to improve the light source adjustment capability, so as to solve the problems of low heat dissipation efficiency, inflexible light source adjustment and poor functional scalability in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides a panel lamp, comprising: a shell, the interior of the shell has a accommodating cavity, one side of the shell is provided with a light emitting opening, the other side is provided with a mounting opening, and the side surface is provided with a heat dissipation opening; a lighting panel assembly, the lighting panel assembly is arranged in the accommodating cavity, and the light emitting surface faces the light emitting opening; a heat sink, the heat sink is arranged in the accommodating cavity, located on the non-light emitting surface of the lighting panel assembly, and is provided with a heat dissipation channel, and the heat dissipation channel corresponds to the heat dissipation opening; functional accessories, including a fan assembly or a light source assembly, and the functional accessories are connected to the middle part of the heat sink and correspond to the mounting opening.

[0006] Further optionally, a mounting groove is provided in the middle of the heat sink, and the mounting groove corresponds to the mounting opening and is used for installing the functional accessories; heat dissipation ribs are evenly distributed on the heat sink, and the heat dissipation ribs extend outward from the edge of the mounting groove, and the heat dissipation channel is formed between adjacent heat dissipation ribs.

[0007] Further optionally, the fan assembly includes: a heat dissipation fan and a filter; the heat dissipation fan is connected to the middle part of the heat dissipation plate; and the filter is installed on the installation opening.

[0008] Further optionally, the light source assembly includes: a lamp board, a reflector, glass, a first magnetic element and a cover plate; the lamp board, reflector, glass and cover plate are arranged in sequence from the heat sink to the shell; a lighting opening is provided in the middle of the cover plate, and an annular groove is provided on the side in contact with the glass, and the first magnetic element is mounted in the annular groove.

[0009] Further optionally, the inner circle of the cover plate is provided with a boss for cooperating with a positioning groove of an external accessory so as to mount the external accessory on the lighting opening.

[0010] Further optionally, the lighting panel assembly includes: a reflective film, a flexible light panel, a light guide plate, a soft light film and a rhombus plate arranged in sequence along the light emitting direction.

[0011] Further optionally, the lamp beads on the flexible light board are RGBWW full-color lamp beads.

[0012] Further optionally, the shell includes a first sub-shell and a second sub-shell; the first sub-shell is annular and is pressed against the light-emitting surface of the lighting panel assembly, and a second magnetic element is provided on the surface; after the second sub-shell is connected to the first sub-shell, a heat dissipation opening is formed on the side.

[0013] Further optionally, a bracket is rotatably connected to the side of the shell; the bracket is provided with a connecting piece for connecting an adapter accessory.

[0014] Further optionally, a control mainboard is provided on the heat sink; a limiting groove and a guide column are provided on the surface of the shell for detachably connecting the controller; a third magnetic element is provided at a corresponding position of the shell and the limiting groove for adsorbing and connecting the controller; a PIN pin connection seat is also provided in the limiting groove for communicating with the controller or supplying power to it after being connected to the controller.

[0015] The above technical solution has the following beneficial effects: by providing a heat dissipation channel on the heat dissipation plate and opening a heat dissipation opening on the shell, the heat dissipation efficiency is improved, the overheating problem is avoided, and the service life of the lamp is extended; by modularizing the fan assembly and the light source assembly, the functional expansion and maintenance of the lamp are more flexible, which is convenient for users to replace or upgrade accessories according to actual needs; the heat dissipation effect is further improved by the cooperation of the fan assembly and the heat dissipation plate; the lighting effect is improved by the cooperation of the light source assembly and the lighting board assembly; by adopting RGBWW full-color lamp beads and flexible light boards, rich color temperature and color adjustment functions are provided to meet the personalized needs of different lighting scenes; through the magnetic connector and card slot design, the installation and disassembly of functional accessories are more convenient, the operation process is simplified, and the user experience is improved; through the rotation design of the bracket and the connector, the angle adjustment ability of the lamp is increased, which can flexibly adapt to the lighting needs of different occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a panel light provided by an embodiment of the present invention when a fan assembly is assembled; Figure 2 It is a structural schematic diagram of a panel lamp provided by an embodiment of the present invention when a light source assembly is assembled; Figure 3 is a schematic diagram of a cross-sectional structure of a panel light provided by an embodiment of the present invention; Figure 4 is a structural schematic diagram of the light emitting surface of a panel lamp provided by an embodiment of the present invention; Figure 5 is a schematic structural diagram of a heat sink provided by an embodiment of the present invention; Figure 6 It is a schematic diagram of the structure of the lighting panel assembly provided in an embodiment of the present invention.

[0018] Figure markings: 1-shell; 101-limiting groove; 102-first sub-shell; 103-second sub-shell; 2-functional accessories; 201-fan assembly; 2011-cooling fan; 2012-filter; 202-light source assembly; 3-bracket; 4-rotating shaft; 5-connector; 6-lighting board assembly; 601-reflective film; 602-flexible light board; 603-light guide plate; 604-soft light film; 605-diamond plate; 7-heat sink; 701-installation groove; 702-heat sink rib; 703-heat sink channel; 8-control main board; 9-third magnetic element; 10-PIN connector. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Please refer to Figures 1 to 6 ,in, Figure 1 It is a structural schematic diagram of a panel light provided by an embodiment of the present invention when a fan assembly is assembled; Figure 2 It is a structural schematic diagram of a panel lamp provided by an embodiment of the present invention when a light source assembly is assembled; Figure 3 is a schematic diagram of a cross-sectional structure of a panel light provided by an embodiment of the present invention; Figure 4 is a structural schematic diagram of the light emitting surface of a panel lamp provided by an embodiment of the present invention; Figure 5 is a schematic structural diagram of a heat sink provided by an embodiment of the present invention; Figure 6 It is a schematic diagram of the structure of the lighting panel assembly provided in an embodiment of the present invention.

[0021] In order to solve the problem in the prior art that it is impossible to improve the performance of the lamp by extending accessories, an embodiment of the present invention provides a panel lamp, including: a shell 1, the shell 1 has an accommodating cavity inside, one side of the shell 1 is provided with a light emitting opening, the other side is provided with a mounting opening, and the side is provided with a heat dissipation opening; a lighting panel assembly 6, the lighting panel assembly 6 is arranged in the accommodating cavity, and the light emitting surface faces the light emitting opening; a heat sink 7, the heat sink 7 is arranged in the accommodating cavity, located on the non-light emitting surface of the lighting panel assembly 6, and is provided with a heat dissipation channel 703, and the heat dissipation channel 703 corresponds to the heat dissipation opening; a functional accessory 2, including a fan assembly 201 or a light source assembly 202, the functional accessory 2 is connected to the middle of the heat sink 7 and corresponds to the mounting opening.

[0022] The housing 1 is the external structure of the panel light, and a receiving cavity is provided inside the housing to accommodate internal components such as the lighting panel assembly 6 and the heat sink 7. The shape of the housing 1 can be selected according to the requirements, and preferably, the housing 1 is circular.

[0023] One side of the housing 1 is provided with a light outlet opening, which can occupy most of the housing surface, which is conducive to the large-area output of light. The other side of the housing 1 is provided with a mounting opening, which is used to enable the functional accessory 2 to work. The side of the housing 1 is provided with a circle of heat dissipation openings, which correspond to the heat dissipation plate 7, providing additional heat dissipation space for the lamp, further improving the heat dissipation effect, and avoiding overheating.

[0024] The lighting panel assembly 6 is located in the accommodating cavity of the shell 1, with the light emitting surface facing the light emitting opening, and is used to improve the lighting light source. The lighting panel assembly 6 cooperates with the light emitting opening of the shell 1 to ensure a large area of ​​light output and can provide uniform and extensive lighting.

[0025] The heat sink 7 is installed on the non-light-emitting surface of the lighting component and is equipped with a heat dissipation channel 703 for guiding and quickly discharging the heat generated during the lighting process. The heat dissipation channel 703 corresponds to the heat dissipation openings of the housing 1, and the heat is effectively discharged through these openings, thereby enhancing the heat dissipation effect and preventing the performance or life of the lamp from being affected by high temperature. As an optional embodiment, the heat sink 7 is made of aluminum material to improve the heat dissipation performance.

[0026] The functional attachment 2 can enhance the performance of the lamp, and the functional attachment 2 is arranged in the middle of the heat sink 7. Specifically, Figure 1-2Functional accessory 2 may be a fan assembly 201. Such a design can ensure that air enters the middle of the panel light and accelerates the wind to be discharged from the heat dissipation channel 703 around it, thereby improving the heat dissipation performance. Functional accessory 2 may also be a light source assembly 202. The light emitting direction of the light source assembly 202 is opposite to that of the lighting panel assembly 6. The light source assembly 202 may provide a different lighting effect from the lighting panel assembly 6. When the light source assembly 202 is set, the lighting panel assembly 6 and the light source assembly 202 may be controlled to switch to realize the switching of the lighting mode. Of course, the two may also be used for lighting together.

[0027] As an optional implementation, the fan assembly 201 and the light source assembly 202 can be flexibly selected and installed according to the needs to meet different requirements. To implement this method, it is necessary to set a power interface and a mounting structure that match it on the heat sink 7.

[0028] As an optional implementation, Figure 5 As shown, a mounting groove 701 is provided in the middle of the heat sink 7, and the mounting groove 701 corresponds to the mounting opening and is used to install the functional accessory 2; heat sink ribs 702 are evenly distributed on the heat sink 7, and the heat sink ribs 702 extend outward from the edge of the mounting groove 701, and a heat dissipation channel 703 is formed between adjacent heat sink ribs 702.

[0029] A mounting groove 701 is provided in the middle of the heat sink 7, and the mounting groove 701 corresponds to the mounting opening of the housing 1, and is used to mount the functional accessory 2. This structure ensures that the functional accessory 2 (such as the fan assembly 201 or the light source assembly 202) can be easily connected to the heat sink 7, and can be fixed or removed through the mounting groove 701. The correspondence between the mounting groove 701 and the mounting opening enables the functional accessory 2 to be accurately positioned and function. For example, the fan assembly 201 can be sucked through the mounting opening, and the light source assembly 202 protrudes from the mounting opening for lighting.

[0030] Each heat dissipation rib 702 is arc-shaped, and these heat dissipation ribs 702 are evenly distributed on the heat dissipation plate 7 except the mounting groove 701 and are divergent. A heat dissipation channel 703 is formed between two adjacent heat dissipation ribs 702, so that the wind blowing to the surroundings is more uniform, increasing the surface area of ​​the heat dissipation plate 7, helping to better disperse the heat, thereby improving the overall heat dissipation efficiency. The extension direction of the heat dissipation rib 702 helps to guide the air flow and optimize the heat conduction path. The blown wind can be blown out from the heat dissipation opening on the side of the housing 1.

[0031] As an optional implementation, Figure 3 As shown, the fan assembly 201 includes: a heat dissipation fan 2011 and a filter 2012; the heat dissipation fan 2011 is connected to the middle of the heat dissipation plate 7; and the filter 2012 is installed on the installation opening.

[0032] The cooling fan 2011 is arranged in the middle of the heat sink 7, which can inhale external air and blow the air out through the heat dissipation channel 703, promote the flow of air, and make the air quickly take away the heat generated by the heat sink 7, improve the heat dissipation effect, and thus increase the service life of the lamp.

[0033] The filter 2012 is arranged on the installation opening, and a mounting structure (such as a buckle structure) can be arranged on the installation opening to enable the filter 2012 to be quickly disassembled and replaced. The filter 2012 can prevent dust, dirt and other debris in the air from entering the interior of the lamp, protect the fan and other internal components from pollution, thereby improving the service life and working stability of the lamp.

[0034] As an optional embodiment, the light source assembly 202 includes: a lamp board, a reflector, glass, a first magnetic element and a cover plate; the lamp board, reflector, glass and cover plate are arranged in sequence from the heat sink 7 to the shell 1; a lighting opening is provided in the middle of the cover plate, and an annular groove is provided on the side in contact with the glass, and the first magnetic element is mounted in the annular groove.

[0035] From the light emitting direction of the light source assembly, the light source assembly 202 is provided with a light board, a reflector, glass and a cover plate in sequence.

[0036] The light board is the core part of the light source assembly 202, and usually includes LED lamp beads or other light sources to improve lighting. The light board is directly in contact with the heat sink 7, and can effectively dissipate heat through the heat sink 7 to avoid local overheating. Preferably, the light board uses an RGBWW light board, and RGBWW (red, green, blue, white, warm white) is composed of five colors of LED lamp beads to achieve a wide range of color changes.

[0037] Reflectors are used to enhance the reflection effect of the light source emitted by the light panel, so that the light is more evenly distributed to the required area. Reflectors can effectively improve the light efficiency of lamps, achieve light collection and reduce light loss.

[0038] Glass is often used to protect the light panel and other optical components, and also to gather and transmit light. Glass can also enhance the aesthetics of the lamp.

[0039] The cover plate is an external protective structure of the light source assembly 202, and the light source assembly 202 is mounted on the lamp. A lighting opening is provided in the middle of the cover plate to allow light to be emitted. An annular groove is also provided on the back of the cover plate (the side in contact with the glass), and a first magnetic element is provided in the annular groove. As an optional embodiment, the first magnetic element is an annular magnet.

[0040] The first magnetic element can absorb other accessories to increase the expandability of the light source of the lamp.

[0041] As an optional implementation, Figure 2 As shown, the inner circle of the cover plate is provided with a boss for cooperating with the positioning groove of the external accessory so as to install the external accessory on the lighting opening.

[0042] The inner circle of the cover is provided with a boss protruding toward the center of the circle, and there may be multiple bosses. Correspondingly, the edge of the external accessory is also provided with a positioning groove, so as to ensure that the external accessory can be quickly installed on the cover and fixed by the first magnetic element to further enhance the light effect of the light source assembly 202. For example, a magic ball is connected to the cover to create a unique lighting effect.

[0043] As an optional implementation, Figure 6 As shown, the lighting panel assembly 6 includes: a reflective film 601, a flexible light panel 602, a light guide plate 603, a soft light film 604 and a rhombus plate 605 which are sequentially arranged along the light emitting direction.

[0044] Along the light emitting direction, the lighting panel assembly 6 includes a reflective film 601 , a flexible light panel 602 , a light guide plate 603 , a soft light film 604 and a rhombus plate 605 which are arranged in sequence.

[0045] The reflective film 601 is located at the outermost side of the lighting panel assembly 6, close to the light panel, and can reflect the light from the light panel and guide it to the light guide plate 603 area, that is, by enhancing light reflection and reducing light loss, the light efficiency of the light source is improved, ensuring that more light is effectively utilized.

[0046] The flexible light board 602 is the light source part of the lighting board assembly 6, and generally includes LED lamp beads or other types of light sources. The flexible design enables the assembly to adapt to different shapes and curved surfaces to provide lighting for the panel light.

[0047] The light guide plate 603 is one of the key components in the lighting panel assembly 6, and its main function is to evenly distribute the light from the flexible light panel 602. The light guide plate 603 can guide the light so that it is evenly irradiated to the light emitting surface through scattering or refraction.

[0048] The soft film 604 is located on the light output side of the light guide plate 603, and plays a role in adjusting and softening the light, ensuring the soft output of the light and avoiding the glare caused by the direct light source. The soft film 604 can effectively reduce the intensity of the light, making the lighting more comfortable and natural.

[0049] The rhombus plate 605 is located on the light-emitting side of the soft light film 604 and is usually used to further process and optimize the quality of light, prevent glare and improve the uniformity of light. The microstructure design of the rhombus plate 605 can effectively reduce glare and improve the distribution of light.

[0050] The lighting panel assembly 6 adopts the side-emitting form, and uses a light guide plate 603, a soft light film 604, a rhombus plate 605, a reflective film 601, etc. on the light-emitting surface to make the light uniform and softer, and at the same time can effectively reduce flicker and blue light problems.

[0051] As an optional implementation, the lamp beads on the flexible lamp board 602 are RGBWW full-color lamp beads.

[0052] The lamp beads on the flexible light panel 602 are RGBWW full-color lamp beads. The configuration of RGBWW (red, green, blue, white and warm white) full-color lamp beads allows the lamp to produce a full spectrum of light colors, not only cold and warm tones, but also various color effects by combining RGB light sources. This enables the panel light to adjust the color of light according to different scenes and needs, and achieve personalized adjustment, such as cold light, warm light or color light effects.

[0053] As an optional implementation, Figure 3 As shown, the shell 1 includes a first sub-shell 102 and a second sub-shell 103; the first sub-shell 102 is annular and pressed against the light-emitting surface of the lighting panel assembly 6, and a second magnetic attraction element is provided on the surface; after the second sub-shell 103 is connected to the first sub-shell 102, a heat dissipation opening is formed on the side.

[0054] The first sub-housing 102 and the second sub-housing 103 can be connected by screws or by buckles to ensure a stable connection between the two and can be disassembled when needed.

[0055] The first sub-shell 102 is an annular structure, and its inner circular opening can allow the light of the lighting assembly to be emitted over a large area. A second magnetic element can also be provided on the surface of the first sub-shell 102, and the second magnetic element can quickly absorb and connect other lighting equipment accessories, such as quickly connecting a soft light cover to achieve a soft light effect.

[0056] As an optional implementation, the second magnetic attraction element is a magnet, which can be evenly distributed on the surface of the first sub-shell 102 .

[0057] The middle opening of the second sub-shell 103 is used as an installation opening. When the first sub-shell 102 and the second sub-shell 103 are installed in place, a circle of gaps will be left on the side as heat dissipation openings to ensure the heat dissipation effect of the heat dissipation plate 7.

[0058] As an optional implementation, Figure 1 , 2 As shown, a bracket 3 is rotatably connected to the side of the housing 1; the bracket 3 is provided with a connecting piece 5 for connecting an adapter accessory.

[0059] A bracket 3 is provided on the side of the housing 1, and the housing 1 can rotate relative to the bracket 3, so that when the bracket 3 is fixed, the housing 1 can adjust the irradiation angle of the light.

[0060] As an optional implementation, Figure 1 , 2 As shown, the bracket 3 is annular and is connected to the side of the housing 1 through two rotating shafts 4, so that the housing 1 can be rotated 360 degrees to adjust the lighting angle.

[0061] A connector 5 is provided at the bottom of the bracket 3, which can be quickly connected to various tripods and desktop brackets 3, and can also be connected to various adapter accessories to meet different connection requirements.

[0062] As an optional implementation, Figure 1 , 2 As shown, the connector 5 is a V-card connector, which can be quickly connected to other V-card accessories.

[0063] As an optional embodiment, a control main board 8 is provided on the heat sink 7; a limiting groove 101 and a guide column are provided on the surface of the shell 1 for detachably connecting the controller; a third magnetic element 9 is provided at a corresponding position of the shell 1 and the limiting groove 101 for adsorbing and connecting the controller; a PIN pin connection seat 10 is also provided in the limiting groove 101 for communicating with the controller or supplying power to it after being connected to the controller.

[0064] A control mainboard 8 is provided on the heat sink 7. The control mainboard 8 is in direct contact with the heat sink 7 through a heat-conducting medium, which can effectively dissipate heat and prevent the control mainboard 8 from being overloaded. The control mainboard 8 can be electrically connected to the lighting board assembly 6, the light source assembly 202 and the fan assembly 201 to control them. In addition, a battery can be provided in the accommodating cavity to power all the components.

[0065] like Figure 1 , 2 As shown, a side of the housing 1 having an installation opening is provided with a limiting groove 101, the limiting groove 101 is adapted to the shape and size of the controller, and a guide column is provided at the bottom, so that the controller can be installed in the limiting groove 101 in the correct direction.

[0066] like Figure 3 As shown, a third magnetic element 9 is also mounted in the housing 1 , and the position of the third magnetic element 9 corresponds to the position of the limiting groove 101 . When the controller is installed in place, it is adsorbed and fixed by the third magnetic element 9 .

[0067] As an optional implementation, the third magnetic attraction element 9 is a magnet, which is disposed in the accommodating cavity.

[0068] A PIN connector 10 is also provided in the limit slot 101. One end of the PIN is connected to the control main board 8, and the other end passes through the limit slot 101 and is connected to the controller, so as to charge the remote controller or perform related communication connection. The remote controller can be used alone for remote control (via an infrared device or a Bluetooth device), or it can be installed in the limit slot 101 to directly control it.

[0069] The control modes of the controller include: switching the lighting panel assembly 6 on and off, color temperature, brightness, and mode, switching the fan assembly 201 on and off or controlling the fan speed, and switching the light source assembly 202 on and off, color temperature, brightness, and mode.

[0070] The above technical solution has the following beneficial effects: by providing a heat dissipation channel on the heat dissipation plate and opening a heat dissipation opening on the shell, the heat dissipation efficiency is improved, the overheating problem is avoided, and the service life of the lamp is extended; by modularizing the fan assembly and the light source assembly, the functional expansion and maintenance of the lamp are more flexible, which is convenient for users to replace or upgrade accessories according to actual needs; the heat dissipation effect is further improved by the cooperation of the fan assembly and the heat dissipation plate; the lighting effect is improved by the cooperation of the light source assembly and the lighting board assembly; by adopting RGBWW full-color lamp beads and flexible light boards, rich color temperature and color adjustment functions are provided to meet the personalized needs of different lighting scenes; through the magnetic connector and card slot design, the installation and disassembly of functional accessories are more convenient, the operation process is simplified, and the user experience is improved; through the rotation design of the bracket and the connector, the angle adjustment ability of the lamp is increased, which can flexibly adapt to the lighting needs of different occasions.

[0071] The specific implementation methods of the above invention further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above content is only the specific implementation methods of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A panel light, characterized in that: include: A housing, wherein the interior of the housing has a containing cavity, one side of the housing is provided with a light outlet opening, the other side is provided with a mounting opening, and the side surface is provided with a heat dissipation opening; A lighting panel assembly, wherein the lighting panel assembly is disposed in the accommodating cavity, and a light emitting surface faces the light emitting opening; A heat sink, which is disposed in the accommodating cavity, located on the non-light-emitting surface of the lighting panel assembly, and is provided with a heat dissipation channel, and the heat dissipation channel corresponds to the heat dissipation opening; The functional accessories include a fan assembly or a light source assembly. The functional accessories are connected to the middle of the heat dissipation plate and correspond to the installation opening.

2. The panel light according to claim 1, characterized in that: A mounting groove is provided in the middle of the heat dissipation plate, and the mounting groove corresponds to the mounting opening and is used for mounting the functional accessory; The heat dissipation plate is evenly distributed with heat dissipation ribs, and the heat dissipation ribs extend outward from the edge of the mounting groove, and the heat dissipation channel is formed between adjacent heat dissipation ribs.

3. The panel light according to claim 1, characterized in that: The fan assembly includes: a heat dissipation fan and a filter; The heat dissipation fan is connected to the middle part of the heat dissipation plate; The filter screen is installed on the installation opening.

4. The panel light according to claim 1, characterized in that: The light source assembly comprises: a light board, a reflector, glass, a first magnetic element and a cover plate; A light board, a reflector, a glass and a cover plate are arranged in sequence from the heat dissipation plate to the shell; The middle part of the cover plate is provided with a lighting opening, and the side in contact with the glass is provided with an annular groove, and the first magnetic attraction element is clamped in the annular groove.

5. The panel light according to claim 4, characterized in that: The inner circle of the cover plate is provided with a boss for cooperating with a positioning groove of an external accessory so as to install the external accessory on the lighting opening.

6. The panel light according to claim 1, characterized in that: The lighting panel assembly comprises: a reflective film, a flexible light panel, a light guide plate, a soft light film and a rhombus plate which are sequentially arranged along the light emitting direction.

7. The panel light according to claim 6, characterized in that: The lamp beads on the flexible lamp board are RGBWW full-color lamp beads.

8. The panel light according to claim 1, characterized in that: The housing comprises a first sub-housing and a second sub-housing; The first sub-shell is annular and pressed against the light-emitting surface of the lighting panel assembly, and a second magnetic attraction element is provided on the surface; After the second sub-housing is connected to the first sub-housing, a heat dissipation opening is formed on the side.

9. The panel light according to claim 1, characterized in that: A bracket is rotatably connected to the side of the shell; The bracket is provided with a connecting piece for connecting the adapter accessory.

10. The panel light according to claim 1, characterized in that: The heat sink is provided with a control mainboard; The surface of the housing is provided with a limiting groove and a guide column for detachably connecting the controller; A third magnetic element is provided at a position corresponding to the limiting groove of the housing, for adsorbing and connecting the controller; The limit groove is also provided with a PIN connection seat for communicating with the controller or supplying power to it after being connected to the controller.

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