Multifunctional lighting devices and lighting methods

Abstract

This invention provides a multifunctional lighting device, comprising a housing assembly, a first light source assembly, a second light source assembly, a fan assembly, a negative ion generator, and a UVC tube. The fan assembly is completely concealed within the housing assembly, enabling a true bladeless fan-light design. Inside the fan assembly, the overall airflow gradually narrows, with airflow introduced through a central inlet at the bottom and exhausted through an outer outlet. The outlet's narrow-at-the-bottom, wide-at-the-top structure compresses the airflow, achieving high-speed air delivery. This multifunctional lighting device offers simultaneous lighting, airflow, and sterilization. When the fan assembly operates, the UVC tube and negative ion generator also work simultaneously, providing continuous sterilization and air purification for safe use. This invention also provides a healthy lighting method using this multifunctional lighting device.

Description

Technical Field

[0001] This invention relates to the technical field of multifunctional lighting fixtures, and in particular to a multifunctional lighting device and lighting method. Background Technology

[0002] Traditional fan lights are ceiling lights or pendant lights with fan blades installed. Because the blades are exposed, there are certain safety hazards. By concealing the fan blades inside the lamp housing, a bladeless fan light is created.

[0003] Bladeless fan lights use turbine-structured blades, resulting in lower noise levels. However, due to the small blade area, the airflow is insufficient, leading to poor airflow performance. Furthermore, the air inlet of these bladeless fan lights is typically located at the top of the light fixture, allowing air to enter from above and exit from below. This necessitates sufficient clearance at the top for air intake, and they are mostly installed as pendant lights, making them unsuitable for ceiling lights.

[0004] In recent years, various sterilization and disinfection products have emerged, such as UV lamps. However, existing products require personnel to leave the site during sterilization and disinfection, making it impossible for people and machines to coexist.

[0005] In addition, with the development of the times and the improvement of people's living standards, higher requirements have been put forward for lighting devices. People are no longer satisfied with lighting devices only providing the function of lighting, but also hope to obtain more healthy lighting factors, such as reducing blue light. Other factors of healthy lighting are also issues that researchers continue to pay attention to. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, this invention provides a multifunctional lighting device to meet the diverse needs of users. Another objective of this invention is to provide a healthy lighting method employing this multifunctional lighting device.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A multi-functional lighting device, comprising a housing assembly, a first light source assembly, a second light source assembly, a fan assembly, a negative ion generator, and a UVC tube;

[0009] The housing assembly includes, from bottom to top, a first housing, a second housing, and a third housing; the first housing is disposed inside the second housing, and has an air inlet in the middle, with a main light source cavity and a secondary light source cavity formed by upward bulging around the air inlet; an air supply cavity is formed between the second housing and the first housing, and an air outlet with an annular gap is formed between the outer edge of the second housing and the outer edge of the first housing; the third housing is disposed outside the second housing, and forms a receiving cavity between it and the second housing;

[0010] The first light source assembly is arranged in a ring shape within the main light source cavity;

[0011] The second light source assembly is arranged in a ring shape within the secondary light source cavity;

[0012] The fan assembly includes a motor, a shaft, and a fan blade module. The motor is disposed in the receiving cavity and is drivenly connected to the fan blade module disposed in the air supply cavity through the shaft.

[0013] The negative ion generator is disposed in the receiving cavity, and the negative ion release end of the negative ion generator is inserted into the air supply cavity; the UVC tube is disposed in the air supply cavity, and the UVC tube and the negative ion release end are respectively located between the fan blade module and the air outlet.

[0014] In one embodiment, the first light source assembly is formed by splicing together several first light source components, and the first light source assembly is disposed on the outer periphery of the second light source assembly.

[0015] In one embodiment, the second light source assembly includes a second light source element and a light guide element. The light guide element is a light guide ring with a single-turn spiral structure. The starting end and the ending end of the light guide element are connected, and the thickness gradually decreases as it extends from the starting end to the ending end, thereby forming a light-incident portion with a cross-section at the starting end. The second light source element is attached and fixed in the light-incident portion. The bottom of the light guide element is a light-outceasing portion.

[0016] In one embodiment, the fan blade module includes a base plate and arc-shaped fan blades, the pivot is located at the center of the base plate, and the fan blades are spirally fixed in the base plate around the pivot.

[0017] In one embodiment, the inner width of the fan blade is greater than the outer width, and the distance between two adjacent fan blades gradually increases from the inside to the outside.

[0018] In one embodiment, the fan assembly further includes an air guide plate disposed between the fan blades and the air outlet, with the UVC tube and the negative ion release end respectively located between the air guide plate.

[0019] In one embodiment, a power supply assembly disposed in the receiving cavity is further included, the power supply assembly being electrically connected to the first light source assembly, the second light source assembly, the fan assembly, the negative ion generator, and the UVC tube.

[0020] In one embodiment, it further includes an upper cover and a damping component. The upper cover is ceiling-mounted in an external fixing member. The damping component includes a first damping member and a second damping member. The first damping member is disposed in the upper cover, and the second damping member is disposed in the third housing.

[0021] In one embodiment, the first damping member is a first magnet installed in a magnet box, and the second damping member is a second magnet installed in the magnet box. In the assembled state of the upper cover and the third housing, the first magnet faces the second magnet, and the magnetic pole of the first magnet facing the second magnet is a different magnetic pole.

[0022] In one embodiment, both the first damping member and the second damping member are damping bases. The damping base is provided with an inclined protrusion, and the protrusion of the first damping member abuts against the protrusion of the second damping member.

[0023] In one embodiment, the multifunctional lighting device further includes a controller disposed in the accommodation cavity. The controller is communicatively connected to the first light source member. The first light source member includes the following light-emitting devices:

[0024] Light-emitting device A, for emitting light containing long-wave blue light;

[0025] Light-emitting device B, for emitting light that restricts long-wave blue light;

[0026] Light-emitting device C, for emitting light with low blue light;

[0027] The controller drives and performs spectral formulation control on the light-emitting device A, the light-emitting device B, and the light-emitting device C according to a set lighting mode.

[0028] In one embodiment, the lighting mode includes a learning and working mode, a leisure mode, and a sleep mode.

[0029] In one embodiment, in the learning and working mode, the controller drives the light-emitting device A, the light-emitting device B, and the light-emitting device C to obtain the following spectral formulation: [[ID=二十九]]

[0030] (1) For CCT ≤ 3000K: the power ratio in the short-wave blue light region < 5%, and the power ratio in the long-wave blue light region > 10%;

[0031] (2) For

[0032] (3) For 4000K < CCT ≤ 5000K: the power ratio in the short-wave blue light region < 12%, and the power ratio in the long-wave blue light region > 18%;

[0033] (4) For other color temperatures: the power ratio in the short-wave blue light region < 15%, and the power ratio in the long-wave blue light region > 22%.

[0034] In one embodiment, in the leisure mode, the controller drives the light-emitting device A, the light-emitting device B, and the light-emitting device C to obtain the following spectral formula:

[0035] (1) For CCT ≤ 2500K: the power ratio in the long-wave blue light region < 2%;

[0036] (2) For 2500K < CCT ≤ 3500K: the power ratio in the long-wave blue light region < 5%;

[0037] (3) For 3500K < CCT ≤ 4500K: the power ratio in the long-wave blue light region < 10%;

[0038] (4) For other color temperatures: the power ratio in the long-wave blue light region < 15%.

[0039] In one embodiment, in the sleep mode, the controller drives the light-emitting device A, the light-emitting device B, and the light-emitting device C to obtain the following spectral formula:

[0040] The power ratio in the blue light region with a wavelength range of 420 - 500nm < 5%.

[0041] The present invention also provides an illumination method, which uses the above-mentioned multifunctional illumination device, and specifically includes the following steps:

[0042] S1. The controller selects and switches to the target illumination mode among the working mode, the leisure mode, and the sleep mode according to the light change of the illumination place or receiving an instruction;

[0043] S2. According to the target illumination mode, the controller drives the light-emitting device A, the light-emitting device B, and the light-emitting device C to adjust the CCT;

[0044] S3. The light-emitting device A, the light-emitting device B, and the light-emitting device C obtain the spectral formula according to the target illumination mode.

[0045] Based on the above technical solutions, the technical effects achieved by the present invention are as follows:

[0046] (1) For the multifunctional illumination device provided by the present invention, the fan assembly is completely hidden inside the housing assembly, and it can be truly made into a bladeless fan lamp; inside the fan assembly, the air duct gradually narrows as a whole, the air flow is introduced from the middle air inlet at the bottom, and finally discharged from the peripheral air outlet at the bottom. Due to the structure of the air outlet being narrow at the bottom and wide at the top, the air flow can be compressed, and a high-speed air supply effect can be achieved.

[0047] (2) The multifunctional lighting device provided by the present invention has multiple functions of simultaneous lighting, blowing air and sterilization. When the fan assembly is working, the UVC tube and the negative ion generator also work simultaneously, which can continuously sterilize and disinfect, purify the air, and achieve the purpose of safe use.

[0048] (3) The multifunctional lighting device provided by the present invention has a first light source component and a second light source component, wherein the second light source component of the second light source component incorporates golden light, which can adjust the human body rhythm, thereby providing healthy lighting and improving overall safety and comfort.

[0049] (4) The lighting method provided by this invention utilizes a multifunctional lighting device that provides two spectra: one is a zero-blue-light lighting spectrum with a blue light band power ratio of <5%; the other is a lighting spectrum that suppresses the proportion of short-wavelength blue light and increases the proportion of long-wavelength blue light. Users can switch lighting modes according to time periods and adapt the lighting spectrum formula accordingly to effectively adjust their biological rhythms and achieve healthy lighting. Attached Figure Description

[0050] Figure 1 This is an exploded view of the multifunctional lighting device of the present invention.

[0051] Figure 2 This is a cross-sectional view of the multifunctional lighting device of the present invention.

[0052] Figure 3 This is a side view of the fan assembly of the present invention.

[0053] Figure 4 This is a schematic diagram of the fan blade assembly of the present invention.

[0054] Figure 5 This is an internal connection block diagram of the first light source element of the present invention.

[0055] Figure 6 This is a schematic flowchart of the lighting method of the present invention.

[0056] Figure 7 This is an exploded view of the second light source assembly of the present invention.

[0057] Figure 8 This is a structural diagram of the vibration damping component employing a magnetic suction structure according to the present invention.

[0058] Figure 9 This is a structural diagram of the vibration damping component of the present invention, which employs an interference fit structure.

[0059] Figure 10 This is a structural diagram of the vibration damping base of the present invention.

[0060] Figure 11This is a test report diagram of the sterilization effect of the multifunctional lighting device of the present invention. Detailed Implementation

[0061] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0062] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0064] Example 1

[0065] Figure 1 This is an exploded view of the multifunctional lighting device of this embodiment. Figure 2 This is a cross-sectional view of the multifunctional lighting device of this embodiment, taken in conjunction with reference to... Figure 1 and Figure 2 A multifunctional lighting device with lighting, ventilation, and sterilization functions is disclosed. It can be ceiling-mounted to an external fixture, such as a ceiling or suspended ceiling. This multifunctional lighting device includes a housing assembly 1, a first light source assembly 2, a second light source assembly 3, a fan assembly 4, a negative ion generator 5, and a UVC tube 6. The housing assembly 1, which forms the overall frame of the multifunctional lighting device, includes a first housing 11, a second housing 12, and a third housing 13. The second housing 12 covers and is disposed above the first housing 11 and located on its outer periphery. Furthermore, the third housing 13 also covers and is disposed above the second housing 12 and located on its outer periphery. Multiple cavities are formed between the first housing 11, the second housing 12, and the third housing 13 for mounting components with different functions.

[0066] The first housing 11 has an air inlet 111 in the middle. The air inlet 111 is circular and is formed by a through hole formed by the first housing 11 recessing towards the center. Around the air inlet 11, the first housing 11 bulges upwards and then slopes downwards at the edge, forming a main light source cavity 112 and a secondary light source cavity 113. The main light source cavity 112 and the secondary light source cavity 113 are separated from each other, and both have annular structures. A first light source assembly 2 is installed in the main light source cavity 112; a second light source assembly 3 is installed in the secondary light source cavity 113.

[0067] The first housing 11 and the upper second housing 12 form an air supply cavity 121. An annular gap exists between the outer edge of the second housing 12 and the outer edge of the inner first housing 11, forming an air outlet 122. The air outlet 122 is narrower at the bottom and wider at the top. When airflow passes through the air outlet 122 in the air supply cavity 121, it is compressed, resulting in a high-speed airflow that flows outward from the air outlet 122. The width of the end of the air outlet 122 can be set to 3mm-10mm as needed.

[0068] The second housing 12 and the upper first housing 13 form a receiving cavity 131. The receiving cavity 131 is a closed cavity structure used to install lamp components such as the negative ion generator 5, the power supply assembly 7, and the UVC tube driver.

[0069] Figure 3 This is a side view of the fan assembly in this embodiment. Figure 4 This is a schematic diagram of the fan blade assembly in this embodiment. Figure 2 Based on reference Figure 3 and Figure 4 As shown, the fan assembly 4 includes a motor 41, a shaft 42, and a fan blade module 43. The motor 41 is disposed in the receiving cavity 131 and is drivenly connected to the fan blade module 43 disposed in the air supply cavity 121 via the shaft 42.

[0070] The fan blade module 43 includes a base plate 431 and arc-shaped fan blades 432. A rotating shaft 42 passes through the center of the base plate 431 and is connected to a motor 41 housing the cavity 131. The arc-shaped fan blades 432 are spirally fixed to the base plate 431 around the rotating shaft 42. Figure 4 As shown, the width of the inner side 4321 of the fan blade 432 is greater than the width of the outer side 4322, meaning that the width of the fan blade 432 decreases smoothly from the inside to the outside. Moreover, the distance between two adjacent fan blades 432 gradually increases from the inside to the outside; the purpose of this arrangement is to introduce more airflow.

[0071] Back Figure 2The fan assembly 4 in this embodiment also includes an air guide plate 44 with an arc-shaped structure, which is disposed between the fan blade 432 and the air outlet 122. The air guide plate 44 is integrally formed with the second housing 2 and extends downward from the second housing 2. When the motor 41 drives the fan blade 432 to rotate, the air guide plate 44 can not only guide the airflow accelerated by the fan blade 432 to the air outlet 122, but also prevent the airflow guided to the air outlet 122 from forming vortices, thereby increasing the wind speed at the air outlet 122.

[0072] A partition plate 14 can be added between the first housing 11 and the second housing 12. The partition plate 14 is fixedly connected to the first housing 11 and provides an arc-shaped treatment for the upper air supply cavity 121, optimizing the airflow channel of the air supply cavity 121. The partition plate 14 has a through hole 141 recessed in the middle, which communicates with the air inlet 111. The air inlet 111 faces the upper fan blade module 43. When the fan blades 432 of the fan blade module 43 are rotating, the airflow is introduced into the air supply cavity 121 through the air inlet 111. That is, the airflow enters the air supply cavity 121 vertically from the air inlet 111 at the bottom of the multi-functional lighting device, and then flows from the inside to the outside under the rotation of the fan blades 432. After being guided by the air guide plate 44, it reaches the inner wall of the second housing 12. Because the air supply cavity 121 gradually narrows towards the air outlet 122, the airflow is compressed, resulting in a high-speed air supply effect. Tests show that the airflow speed flowing downwards from the air outlet 122 is above 5 m / s.

[0073] In terms of lighting function, the first light source assembly 2 is the component that provides the main lighting. The first light source assembly 2 is composed of several first light source components 21 spliced ​​together to form an overall ring structure and installed in the main light source cavity 112.

[0074] The first light source component 21 is a single light-emitting unit having a substrate 211 and a light-emitting element 212. The light-emitting element 212 is an LED lamp bead, which has the characteristics of small size, low operating voltage, high energy efficiency, strong applicability, fast response time, and low environmental pollution. In this embodiment, the light-emitting element 212 is a direct-light irradiation. A lens (not shown in the figure) can also be added below the first light source component 2. The number of lenses can be multiple, and they correspond one-to-one with the first light source component; or the lens is an integrally formed structure that directly covers the first light source component 2, that is, multiple light-emitting elements 212 are set in the same lens, and different light emission color, light emission intensity, and light emission effect can be achieved by adjusting the opening and closing of multiple light-emitting elements 212.

[0075] In some embodiments, the first light source assembly 2 may be composed of different first light source elements 21. It is understood that when the light-emitting elements 212 of the first light source element 21 are different, the resulting spectra will also be different. For example, the first light source element 21 may be configured as the following light-emitting devices: a light-emitting device A for emitting light containing long-wavelength blue light, a light-emitting device B for emitting light that limits long-wavelength blue light, and a light-emitting device C for emitting light with low blue light. These light-emitting devices are light-emitting diodes (LEDs); wherein, light-emitting device B emitting light that limits long-wavelength blue light means that the proportion of long-wavelength blue light in the emitted light is correspondingly limited, that is, the proportion of long-wavelength blue light is retrieved in the emitted light.

[0076] A controller is installed in the housing 131. The controller can drive and control the spectral formulation of light-emitting devices A, B, and C according to preset lighting modes such as learning / working mode, leisure mode, and sleep mode. Specifically, a sleep mode with zero blue light spectrum is used in the sleep scenario, a leisure mode with reduced long-wavelength blue light spectrum is used in the leisure scenario, and a learning / working mode with increased long-wavelength blue light spectrum is used in the learning / working scenario.

[0077] In this embodiment, light-emitting devices A, B, and C can provide light with the same color temperature but different physiological stimulation values, or they can provide light with different color temperatures and different physiological stimulation values. The color temperature and light intensity information associated with these lights are pre-stored in the memory. The controller can call the corresponding light-emitting device information according to the lighting mode, thereby driving different light-emitting devices. The specific color temperature and corresponding wavelength range of light provided are determined by the controller calling the appropriate lighting mode based on the received instructions.

[0078] The lighting modes include a study / work mode, a leisure mode, and a sleep mode. In this embodiment, the study / work mode, leisure mode, and sleep mode are controlled and switched by a controller. Furthermore, the color temperature, light intensity, power in the wavelength range, and related information on the biological effects of each of the study / work mode, leisure mode, and sleep mode are stored in a memory.

[0079] Figure 5 This is an internal connection block diagram of the first light source in this embodiment, as shown below. Figure 5 As shown, the controller, as the central processing unit of the multi-functional lighting device, communicates with the interactive input module externally to receive instructions from the interactive input module. Internally, it communicates with the first light source and the memory respectively. According to the instructions, it retrieves the set data of luminous intensity, color temperature and power stored in the memory, or adjusts according to the changes and rhythm of the lighting environment, and calls the set lighting mode, thereby driving and controlling the spectral formula of the light-emitting devices A, B and C in the first light source 21.

[0080] Specifically, in the learning / work mode, the controller drives the light-emitting device A, the light-emitting device B, and the light-emitting device C to obtain the following spectral recipes:

[0081] (1) For CCT ≤ 3000K: the power ratio in the short-wave blue light region < 5%, and the power ratio in the long-wave blue light region > 10%;

[0082] (2) For 3000K < CCT ≤ 4000K: the power ratio in the short-wave blue light region < 10%, and the power ratio in the long-wave blue light region > 15%;

[0083] (3) For 4000K < CCT ≤ 5000K: the power ratio in the short-wave blue light region < 12%, and the power ratio in the long-wave blue light region > 18%;

[0084] (4) For other color temperatures: the power ratio in the short-wave blue light region < 15%, and the power ratio in the long-wave blue light region > 22%.

[0085] The learning / work mode is an illumination mode with a spectral recipe that increases the long-wave blue light. In this illumination mode, the wavelength of the light is controlled at 480 nm. The user will maintain a high level of wakefulness, have a relatively high physiological stimulation value, and can adjust the physiological stimulation value of the light according to needs. Moreover, the provided light has low blue light hazard and will not cause excessive damage to the retina even after long-term use.

[0086] In the leisure mode, the controller drives the light-emitting device A, the light-emitting device B, and the light-emitting device C to obtain the following spectral recipes:

[0087] (1) For CCT ≤ 2500K: the power ratio in the long-wave blue light region < 2%;

[0088] (2) For 2500K < CCT ≤ 3500K: the power ratio in the long-wave blue light region < 5%;

[0089] (3) For 3500K < CCT ≤ 4500K: the power ratio in the long-wave blue light region < 10%;

[0090] (4) For other color temperatures: the power ratio in the long-wave blue light region < 15%.<​​​​​​​The relaxation mode is a lighting mode with a spectrum formula that reduces long-wave blue light. In this lighting mode, the secretion of melatonin can be promoted through the color temperature of the light and the irradiation conditions, so that the person being irradiated can have a more comfortable state of rest / entertainment.

[0094] In sleep mode, the power ratio of blue light in the 420-500nm wavelength range is controlled to below 5%. This avoids a large proportion of blue light spectral energy suppressing melatonin secretion in the brain, allowing for normal melatonin secretion and thus improving sleep quality. Furthermore, because melatonin is suppressed in study / work mode, it is secreted in large quantities during sleep mode, facilitating faster sleep onset.

[0095] Based on this multifunctional lighting device, the following healthy lighting method can be achieved, which specifically includes the following steps:

[0096] S1. The controller selects and switches from working mode, leisure mode and sleep mode to the target lighting mode based on changes in the light in the lighting location or by receiving instructions;

[0097] S2. According to the target lighting mode, the controller drives the light-emitting devices A, B and C to adjust the CCT;

[0098] S3. Light-emitting devices A, B, and C obtain spectral formulas according to the target illumination mode.

[0099] The controller can select and switch between work, leisure, and sleep modes to a target lighting mode based on changes in ambient light or by receiving commands. According to the target lighting mode, the controller drives light-emitting devices A, B, and C to adjust the CCT (Circular Temperature Coefficient). Finally, light-emitting devices A, B, and C obtain a spectral formula based on the target lighting mode. Users can switch lighting modes according to time periods and adapt the lighting spectral formula accordingly, effectively adjusting their circadian rhythms to achieve healthy lighting.

[0100] The second light source assembly will now be described. In this embodiment, the second light source assembly 3 is a component that provides auxiliary lighting. The second light source assembly 3 also has an overall annular structure, comprising a second light source element 31 and a light guide element 32. The second light source assembly 3 is installed in the auxiliary light source cavity 113 and is located on the inner periphery of the first light source assembly 3 and on the outer periphery of the air outlet 111.

[0101] Figure 7 This is an exploded view of the second light source component in this embodiment, as shown below. Figure 7As shown, the light guide 32 is a light guide ring with a single-turn spiral structure. The light guide body 320 of the light guide 32 has its starting end 321 and ending end 322 connected, and the light guide body 320 extends from the starting end 321 to the ending end 322, with the thickness of the light guide body 320 gradually decreasing. That is, the thickness of the light guide body 320 spirals down from the starting end 321 to the ending end 322, after which the ending end 322 connects to the starting end 321, giving the light guide body 320 a single-turn spiral ring structure; a light-emitting portion 324 is formed on the flat bottom surface of the light guide body 320. This spiral light guide 32 can achieve higher light extraction efficiency and higher light extraction uniformity.

[0102] The second light source 31 works in conjunction with the first light source 21 to achieve rhythmic, healthy lighting. The second light source 32 may incorporate a golden-yellow light source, such as a nightlight. In some embodiments, the controller and the second light source 31 can control the light emitted by the second light source 31. For example, the power ratio of the blue light region (420-500nm) can be controlled to below 5%, avoiding the suppression of melatonin secretion in the brain by a large proportion of blue light spectral energy, thus allowing melatonin secretion to normalize or increase, thereby improving the user's sleep quality.

[0103] The second light source 31 can be a single light source, which is fixed at the center of the light-incident part 323 of the light guide 32. The emitted light is processed by the light guide 32 and then emitted from the light-out part 324 on the bottom surface.

[0104] In some embodiments, the light-emitting portion 324 of the light guide 32 may also be provided with a light-emitting structure:

[0105] For example, the light-emitting structure is set to a frosted surface, and the frosting degree of the frosted surface gradually increases from the starting end to the ending end; for example, the light-emitting structure is set to a light-emitting hole that controls the opening size, and the opening size of the light-emitting hole gradually increases from the starting end to the ending end; or for example, the light-emitting structure is set to a light-emitting hole that controls the opening depth, and the opening depth of the light-emitting hole gradually increases from the starting end to the ending end.

[0106] These light-emitting holes can be circular, elliptical, or regular polygonal, such as squares, regular pentagons, or regular hexagons. The light-emitting part 324 of the light guide 32 has been treated with a frosted or perforated light-emitting structure to break the total internal reflection condition, making the light emission uniform and improving the light emission efficiency and uniformity.

[0107] In terms of air purification, the negative ion generator 5 is housed in the receiving cavity 131, and the negative ion release end 51 of the negative ion generator 5 is inserted into the air supply cavity 121. The UVC tube 6 is also housed in the air supply cavity 121. Moreover, the UVC tube 6 and the negative ion release end 51 are respectively located between the fan blade module 43 and the air outlet 122. More precisely, the UVC tube 6 and the negative ion release end 51 are also respectively located between the air guide plate 44.

[0108] The ultraviolet rays emitted by the UVC tube 6 can sterilize and disinfect the gas entering the air supply cavity 121 and flow out through the air outlet 122. The ultraviolet rays are blocked by the first housing 11 and the second housing 12, so the ultraviolet rays will not directly irradiate the environment. While the UVC tube 6 is working, personnel do not need to leave the site, thus achieving human-machine coexistence.

[0109] Similarly, the negative ions generated by the negative ion generator 5 are released into the air supply cavity 121 through the negative ion release end 51. When the fan blade 432 blows air outward, the generated negative ions can also be released into the space around the multi-functional lighting device through the air outlet 122 to improve air quality.

[0110] For sterilization effect, please refer to Figure 11 The test report, by Figure 11 It can be seen that the multifunctional lighting device in this embodiment can achieve a sterilization rate of 93% after two hours of sterilization.

[0111] The multifunctional lighting device in this embodiment also includes a power supply component 7, which is installed in the housing cavity 131. The power supply component 7 is electrically connected to the first light source component 2, the second light source component 3, the fan component 4, the negative ion generator 5, and the UVC6 tube, respectively, to supply power to the above-mentioned components.

[0112] It should also be noted that the multifunctional lighting device in this embodiment further includes a top cover 15 and a vibration damping component 8. The top cover 15 is fixed to an external fixture, such as a ceiling or suspended ceiling, using a ceiling-mounted method. The top cover 15 is fixedly connected to the third housing 13. To eliminate the vibration of the fan assembly 4 during operation, this embodiment adds a vibration damping component 8 to eliminate vibration between components. Specifically, the vibration damping component 8 includes a first vibration damper 81 and a second vibration damper 82. The first vibration damper 81 is disposed in the top cover 15, and the second vibration damper 82 is disposed in the third housing 13.

[0113] In some embodiments, such as Figure 8The structural diagram of the vibration damping assembly using a magnetic attraction structure is shown. The first damping element 81 is a first magnet installed in the magnet box 83, and the second damping element 82 is a second magnet installed in the magnet box 83. In the assembled state of the upper cover 15 and the third housing 13, the first magnet faces the second magnet, and the magnetic poles of the first magnet facing the second magnet are opposite magnetic poles. In this embodiment, the second magnet has the same structure as the first magnet, so it can be installed in the magnet box 83 in the same way. Then, the magnet box 82 is attached and fixed to the upper cover 15 and the third housing 13, and tightened with screws, so that the magnetic pole face of the first magnet that generates attraction faces downwards, and the magnetic pole face of the second magnet that generates attraction faces upwards. The magnetic attraction between the first magnet and the second magnet pulls the upper cover 15 and the third housing 13 together, preventing resonance caused by vibration or air oscillation.

[0114] In some embodiments, such as Figure 9 The structural diagram of the vibration damping assembly with an interference fit structure is shown. The first vibration damper 81 and the second vibration damper 82 have the same structure. Both are vibration damping bases 84 made of plastic. The vibration damping base 84 is provided with an inclined protrusion 841. The protrusion 841 of the first vibration damper 81 abuts against the protrusion 841 of the second vibration damper 82.

[0115] like Figure 10 As shown in the structural diagram of the vibration damping base, the vibration damping base 84 has two protrusions 841. After the upper cover 15 and the third housing 13 are locked, a squeezing force will be generated between the cover 15 and the third housing 13, pushing the third housing 13 outward and locking it, thereby eliminating the gap between the two and avoiding vibration.

[0116] The multifunctional lighting device provided in this embodiment features a fan assembly completely concealed within the housing assembly, enabling a true bladeless fan-light design. Inside the fan assembly, the overall airflow gradually narrows, with airflow introduced through the central inlet at the bottom and exhausted through the outermost outlet. Due to the outlet's narrow-at-the-bottom, wide-at-the-top structure, the airflow is compressed, achieving a high-speed air delivery effect. This multifunctional lighting device simultaneously provides illumination, airflow, and sterilization. While the fan assembly is operating, the UVC tube and negative ion generator also work concurrently, providing continuous sterilization and air purification for safe use.

[0117] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. A multifunctional lighting device, characterized in that, It includes a housing assembly, a first light source assembly, a second light source assembly, a fan assembly, a negative ion generator, a UVC tube, a top cover, and a vibration damping assembly; The housing assembly includes, from bottom to top, a first housing, a second housing, and a third housing; the first housing is disposed inside the second housing, and has an air inlet in the middle, with a main light source cavity and a secondary light source cavity formed by upward bulging around the air inlet; an air supply cavity is formed between the second housing and the first housing, and an air outlet with an annular gap is formed between the outer edge of the second housing and the outer edge of the first housing; the third housing is disposed outside the second housing, and forms a receiving cavity between it and the second housing; A partition plate is provided between the first housing and the second housing. The partition plate is fitted and fixedly connected to the first housing, and the partition plate has a through hole in the middle, which communicates with the air inlet. The first light source assembly is arranged in a ring shape within the main light source cavity; The second light source assembly is arranged in a ring shape within the secondary light source cavity; The fan assembly includes a motor, a shaft, a fan blade module, and an air guide plate. The motor is disposed in the receiving cavity and is drivenly connected to the fan blade module disposed in the air supply cavity through the shaft. The air guide plate is disposed between the fan blade and the air outlet. The negative ion generator is disposed in the receiving cavity, and the negative ion release end of the negative ion generator is inserted into the air supply cavity; the UVC tube is disposed in the air supply cavity, and the UVC tube and the negative ion release end are respectively located between the fan blade module and the air outlet; The top cover is mounted in an external fixing component and connected to the third housing; the vibration damping assembly includes a first vibration damper and a second vibration damper, the first vibration damper being disposed in the top cover and the second vibration damper being disposed in the third housing; Both the first and second vibration damping components are vibration damping bases, and the vibration damping bases are provided with inclined protrusions. The protrusions of the first vibration damping component abut against the protrusions of the second vibration damping component.

2. The multifunctional lighting device according to claim 1, characterized in that, The first light source assembly is formed by splicing together several first light source components, and the first light source assembly is disposed on the outer periphery of the second light source assembly.

3. The multifunctional lighting device according to claim 2, characterized in that, The second light source assembly includes a second light source element and a light guide element. The light guide element is a light guide ring with a single-turn spiral structure. The starting end and the ending end of the light guide element are connected, and the thickness gradually decreases as it extends from the starting end to the ending end, thereby forming a light-incident part with a cross-section at the starting end. The second light source element is attached and fixed in the light-incident part. The bottom of the light guide element is the light-out part.

4. The multifunctional lighting device according to claim 1, characterized in that, The fan blade module includes a base plate and arc-shaped fan blades. The rotating shaft is located at the center of the base plate, and the fan blades are fixed in the base plate in a spiral shape around the rotating shaft.

5. The multifunctional lighting device according to claim 4, characterized in that, The inner width of the fan blade is greater than the outer width, and the distance between two adjacent fan blades gradually increases from the inside to the outside.

6. The multifunctional lighting device according to claim 5, characterized in that, The UVC tube and the negative ion release end are respectively located between the air guide plate.

7. The multifunctional lighting device according to claim 1, characterized in that, It further includes a power supply component disposed in the accommodation cavity, and the power supply component is electrically connected to the first light source component, the second light source component, the fan component, the negative ion generator and the UVC tube.

8. The multifunctional lighting device according to claim 2, characterized in that, It further includes a controller disposed in the accommodation cavity, and the controller is communicatively connected to the first light source component. The first light source component includes the following light-emitting devices: Light-emitting device A, which is used to emit light containing long-wave blue light; Light-emitting device B, which is used to emit light that limits long-wave blue light; Light-emitting device C, which is used to emit light with low blue light; The controller drives and performs spectral formulation control on the light-emitting device A, the light-emitting device B and the light-emitting device C according to the set lighting mode; The lighting mode includes a learning and working mode, a leisure mode and a sleep mode.

9. The multifunctional lighting device according to claim 8, characterized in that, In the learning and working mode, the controller drives the light-emitting device A, the light-emitting device B and the light-emitting device C to obtain the following spectral formulation: (1) For CCT ≤ 3000K: the power ratio in the short-wave blue light region < 5%, and the power ratio in the long-wave blue light region > 10%; (2) For 3000K < CCT ≤ 4000K: the power ratio in the short-wave blue light region < 10%, and the power ratio in the long-wave blue light region > 15%; (3) For 4000K < CCT ≤ 5000K: the power ratio in the short-wave blue light region < 12%, and the power ratio in the long-wave blue light region > ​ 10. The multifunctional lighting device according to claim 8, characterized in that, ​ ​ ​ ​ ​ 11. The multifunctional lighting device according to claim 8, characterized in that, ​ ​ 12. A lighting method, characterized in that, ​ ​ ​ ​

Images