A photovoltaic science popularization laser camping lamp

Abstract

The utility model provides a kind of photovoltaic popular science laser camping lamp, it is related to the technical field of outdoor lighting equipment, including shell and lamp shade, collapsible lamp pole is equipped in shell, collapsible lamp pole one end is fixed in shell, other end extends into lamp shade and with lamp shade inside fixed, LED illuminating lamp is equipped in lamp shade;Collapsible lamp pole is equipped with laser illuminator and diffraction plate, laser window is equipped on lamp shade, mechanical rotation lock is equipped between shell and lamp shade;Photovoltaic panel is equipped in shell bottom, battery and control circuit board are equipped in shell, laser illuminator, LED illuminating lamp and battery are electrically connected with control circuit board. Through the cooperation of photovoltaic endurance, laser projection popular science and safety protection, solve the problem that traditional camping lamp is single in function, energy dependence is strong and child safety hazard, have practicality and educational value.

Description

Technical Field

[0001] This utility model relates to the field of outdoor lighting equipment technology, and more specifically, to a photovoltaic science popularization laser camping light. Background Technology

[0002] With the increasing popularity of outdoor activities, the basic lighting function of camping lights can no longer meet market demands. Current user needs for camping lights have expanded from simple illumination to include energy self-sufficiency and interactive experiences. However, existing camping light technology still has many limitations.

[0003] Early camping lights only provided illumination and relied on their own batteries. With the technological iteration and upgrading of solar photovoltaic panels, some camping lights now have photovoltaic panels installed to generate electricity and store it in batteries. Camping lights also support USB-assisted battery charging and finally illuminate the lights through LED light sources. However, their functions are limited and can only provide ordinary lighting.

[0004] To enhance the interactivity of outdoor lighting, existing technologies include using film to project simple patterns (such as animal outlines) onto camping lights. However, these projections are often insufficient in brightness, resulting in blurry images, and lack any safety features to prevent accidental activation by children. Existing technologies that improve projection effects typically use laser lighting; however, traditional laser lighting only supports single-point laser projection, cannot generate complex projection patterns, and lacks physical protection, posing a risk of direct laser beams.

[0005] Therefore, there is an urgent need to develop a new type of camping light that integrates efficient energy supply, multi-functional interaction, safety protection, and multi-scenario adaptability to address the shortcomings of existing technologies. Utility Model Content

[0006] The technical problem this invention aims to solve is that existing outdoor lighting lamps cannot simultaneously achieve energy self-sufficiency, interactivity, and safety in a composite camping light. To overcome the shortcomings of the existing technology, this invention provides a photovoltaic science popularization laser camping light.

[0007] This utility model provides a photovoltaic science popularization laser camping light, including a housing and a lampshade, wherein the lampshade is disposed on the top of the housing;

[0008] The housing contains a retractable lamp post, one end of which is fixed inside the housing, and the other end extends into the lampshade and is fixed inside the lampshade. An LED light is installed inside the lampshade. A laser illuminator and a diffraction plate for projecting the laser illuminator are axially installed inside the retractable lamp post. The lampshade has a laser window for the laser light emitted through the diffraction plate to pass through. A mechanical rotary lock for triggering the laser illuminator to start is provided between the housing and the lampshade.

[0009] A photovoltaic panel is provided at the bottom of the housing, and a battery and a control circuit board are provided inside the housing. The laser illuminator, LED lighting lamp and battery are all electrically connected to the control circuit board.

[0010] Compared with existing technologies, the photovoltaic science popularization laser camping light proposed in this application has the following advantages: the laser illuminator is placed inside the housing, and then laser projection is achieved through a diffraction plate to realize complex projection. Finally, the laser projection is irradiated through the lampshade to avoid direct laser beams; a mechanical rotary lock is set to prevent accidental activation; the synergy of photovoltaic power generation, laser projection science popularization, and safety protection solves the problems of traditional camping lights having single functions, strong energy dependence, and safety hazards for children, and has both practical and educational value.

[0011] In one possible implementation, the laser illuminator includes a diameter-limiting transmission window, a laser diode, an aluminum substrate, and a heat sink arranged sequentially from top to bottom along the axial direction of the telescopic lamp post; the diameter-limiting transmission window is located below a diffraction plate, the laser diode is fixed on the aluminum substrate and electrically connected to a control circuit board, the heat sink is connected to the aluminum substrate and fixed to the inner wall of the telescopic lamp post.

[0012] Compared with existing technologies, this laser illuminator emits laser light through a laser diode, limits laser divergence through a diameter-limiting transmission window, fixes the laser diode on an aluminum substrate, and dissipates heat through a heat sink, ensuring that the entire laser illuminator can operate stably and normally.

[0013] In one possible implementation, the mechanical rotary lock includes a rotating body sleeved on the retractable lamp post and a micro switch disposed within the housing. The rotating body has a threaded rotating part protruding radially outward between the housing and the lamp cover. The rotating body has a toggle part inside the housing for triggering the micro switch to start. The micro switch is electrically connected to a control circuit board.

[0014] Compared with existing technologies, the addition of a threaded rotating part facilitates rotation; when the rotating body rotates to a specific position, the toggle part triggers a micro switch to start, thereby triggering the laser illuminator to be ready for startup, improving safety and preventing accidental activation of the laser illuminator.

[0015] In one possible implementation, the housing is further provided with a timed shutdown circuit for timed power-off, and the timed shutdown circuit is electrically connected to the control circuit board.

[0016] Compared with existing technologies, by setting a timed shutdown circuit, forced power-off can be achieved, avoiding damage caused by excessively high operating temperatures of the laser illuminator during prolonged operation.

[0017] In one possible implementation, a magnetic ring is embedded in the bottom of the housing on the outer periphery of the photovoltaic panel, and a hidden hook is coaxially provided on the bottom of the housing on the outer periphery of the magnetic ring.

[0018] Compared with existing technologies, the photovoltaic science popularization laser camping light can be fixed to the outdoor camping tent frame by setting a magnetic ring; it can also be hung on the outdoor camping tent by unfolding the hidden hook, providing multiple fixing methods for easy fixation.

[0019] In one possible implementation, the diffraction plate is etched with a phase-coded star map generated based on star position data, the phase-coded star map including the Big Dipper star map, the Orion star map, and the Twenty-Eight Mansions star map.

[0020] Compared with existing technologies, setting up multiple star charts for laser projection display improves interactivity.

[0021] In one possible implementation, the LED lighting is a ring-shaped temperature control indicator light arranged around the outer periphery of the diffraction plate, and the control circuit board is provided with a temperature sensor for detecting the temperature of the laser illuminator; according to the temperature detected by the temperature sensor, the control circuit board controls the brightness change of the ring-shaped temperature control indicator light.

[0022] Compared with existing technologies, by setting up a temperature sensor and using a ring-shaped temperature control indicator light, the temperature changes of the laser illuminator can be displayed intuitively.

[0023] In one possible implementation, the control circuit board is equipped with a light intensity sensor for detecting ambient brightness, and the control circuit board controls the power variation of the laser illuminator based on the light intensity detected by the light intensity sensor.

[0024] Compared with existing technologies, intelligent light control is achieved by detecting ambient brightness through a light intensity sensor and then controlling the output power of the laser illuminator.

[0025] In one possible implementation, the housing contains a voice module that is electrically connected to a control circuit board.

[0026] Compared with existing technologies, the photovoltaic science popularization laser camping light can be controlled by voice through a voice module, which improves the human-computer interaction effect.

[0027] In one possible implementation, the housing has at least one first Type-C interface for charging the battery on its side, and the housing has multiple power indicator lights embedded above the first Type-C interface for indicating the battery level. Both the first Type-C interface and the power indicator lights are electrically connected to the control circuit board.

[0028] Compared with existing technologies, the first Type-C interface facilitates battery charging, and the power indicator light can intuitively show the battery's energy storage status. Attached Figure Description

[0029] Figure 1 This is a front structural view of a photovoltaic science popularization laser camping light of this utility model;

[0030] Figure 2 This is a rear structural diagram of a photovoltaic science popularization laser camping light of this utility model;

[0031] Figure 3 This is a bottom structural diagram of a photovoltaic science popularization laser camping light of this utility model;

[0032] Figure 4 This is a cross-sectional view of a photovoltaic science popularization laser camping light according to this utility model;

[0033] Figure 5 This is a cross-sectional view of the raised portion of a photovoltaic science popularization laser camping light according to this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1-Housing; 11-Lighting adjustment knob; 12-Laser control button; 13-Magnetic ring; 14-Hidden hook; 15-First Type-C interface; 16-Power indicator light; 17-Second Type-C interface;

[0036] 2-Lampshade;

[0037] 3- Retractable light pole;

[0038] 4-LED lighting;

[0039] 5-Laser illuminator; 51-Limited diameter transmission window; 52-Laser diode; 53-Aluminum substrate; 54-Heat sink;

[0040] 6-Diffraction plate;

[0041] 7-Mechanical rotary lock;

[0042] 8-Photovoltaic panel; 81-Battery;

[0043] 9-Control circuit board; 91-Photovoltaic input circuit; 92-Schottky diode bypass; 93-Voltage comparator; 94-Timed shutdown circuit. Detailed Implementation

[0044] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0045] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0046] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0048] See Figures 1-5 As shown in the figure, this application discloses a photovoltaic science popularization laser camping light, including a housing 1 and a lampshade 2, which are set independently. The lampshade 2 is set above the housing 1 and is a frosted matte ellipsoid.

[0049] The housing 1 is equipped with a telescopic lamp post 3. One end of the telescopic lamp post 3 is fixed inside the housing 1, and the other end extends into the lamp cover 2 and is fixed inside the lamp cover 2. The lamp cover 2 is equipped with an LED lighting lamp 4.

[0050] The retractable lamp post 3 is axially equipped with a laser illuminator 5 and a diffraction plate 6 for projecting the laser illuminator 5. The lamp cover 2 is equipped with a laser window 21 for the laser emitted by the diffraction plate 6 to pass through. A mechanical rotary lock 7 for triggering the laser illuminator 5 to be started is provided between the housing 1 and the lamp cover 2.

[0051] A photovoltaic panel 8 is provided at the bottom of the housing 1. The housing 1 is provided with a lighting adjustment knob 11 for adjusting the color temperature and brightness of the LED lighting lamp 4, and a laser control button 12 for switching the laser illuminator 5 for lighting and projection. The housing 1 is provided with a battery 81 and a control circuit board 9. The laser illuminator 5, LED lighting lamp 4, lighting adjustment knob 11, laser control button 12 and battery 81 are all electrically connected to the control circuit board 9.

[0052] The synergy of photovoltaic power generation, laser projection for science education, and safety protection solves the problems of traditional camping lights, such as limited functionality, high energy dependence, and safety hazards for children. It combines practicality and educational value and is suitable for camping, exploration, and astronomy teaching.

[0053] The lampshade 2 can be raised by setting a retractable lamp post 3. In this embodiment, the retractable lamp post 3 is made of aluminum alloy and can achieve stepless height adjustment from 0 to 35 cm. It can be a retractable structure in the prior art. The photovoltaic science popularization laser camping lamp can be used as a desktop lamp by using the retractable lamp post 3.

[0054] The LED lighting lamp 4 is installed inside the lampshade 2. It can be directly fixed inside the lampshade 2 and then electrically connected to the control circuit board 9 via a wiring harness for control. Alternatively, it can be fixed to a telescopic lamp post 3. The telescopic lamp post 3 extends into one side of the lampshade 2 and has a fixing plate protruding radially outward. The LED lighting lamp 4 is then arranged in a ring shape and fixed on the fixing plate. Finally, it is electrically connected to the control circuit board 9 via a wiring harness for control.

[0055] The photovoltaic panel 8 can be a 5W monocrystalline silicon photovoltaic panel or a foldable photovoltaic panel, and the battery 81 can be a 10000mAh lithium battery 81. Of course, other specifications and models of photovoltaic panels 8 and batteries 81 can also be used.

[0056] The photovoltaic panel 8 charges the battery 81 via the control circuit board 9. During this process, the control circuit board 9 also includes a photovoltaic input circuit 91, a Schottky diode bypass 92, and a voltage comparator 93. The photovoltaic input circuit 91 implements priority charging logic for the photovoltaic panel 8 and internally includes an MPPT controller to process signals from the photovoltaic panel 8 and optimize charging efficiency. The Schottky diode bypass 92 directly powers the laser illuminator 5 under sufficient ambient light conditions. The voltage comparator 93 triggers a power supply path switch when a threshold (e.g., 4.2V) is reached.

[0057] In this embodiment, the mechanical rotary lock 7 includes a rotating body sleeved on the retractable lamp post 3 and a micro switch disposed in the housing 1. The rotating body has a threaded rotating part protruding radially outward between the housing 1 and the lamp cover 2. The rotating body has a toggle part inside the housing 1 for triggering the micro switch to start. The micro switch is electrically connected to the control circuit board 9.

[0058] By setting a threaded rotating part, rotation is convenient; when the rotating body rotates to a specific position, the toggle part triggers the micro switch to start, thereby triggering the laser illuminator 5 to be started, improving safety and preventing direct accidental start of the laser illuminator 5.

[0059] Specifically, for example, by turning the threaded rotating part to drive the rotating body to rotate, and the rotating body then drives the拨动 part to rotate. After rotating to a certain angle (for example, rotating 30°), the拨动 part triggers the microswitch to close (when the microswitch closes, it will make a clicking sound, indicating successful triggering). The microswitch gives a signal to the control circuit board 9 that the laser illuminator 5 is to be started. Only then can the laser illuminator 5 be started through the laser control button 12 to prevent accidental start-up operations.

[0060] In this embodiment, the laser illuminator 5 includes a diameter-limiting transmission window 51, a laser diode 52, an aluminum substrate 53, and a heat sink 54, which are arranged in sequence from top to bottom along the axial direction of the telescopic lamp post 3. The diameter-limiting transmission window 51 is arranged below the diffraction plate 6. The laser diode 52 is fixed on the aluminum substrate 53. The laser diode 52 is electrically connected to the control circuit board 9. The heat sink 54 is connected to the aluminum substrate 53, and the heat sink 54 is fixed on the inner wall of the telescopic lamp post 3.

[0061] The diameter-limiting transmission window 51 limits the transmission of light by setting sapphire glass, with its aperture ≤ 3.0 mm and divergence angle ≤ 1.2°. The laser diode 52 uses 520 nm green light or 635 nm red light. The heat sink 54 is an annular copper heat sink 54, which is coaxially arranged with the diameter-limiting transmission window 51.

[0062] To facilitate the fixing of the heat sink 54, a support plate can be radially arranged on the inner wall of the telescopic lamp post 3. The heat sink 54 is fixed on the support plate. And to improve the heat dissipation effect, multiple holes are also arranged on the support plate. To save the internal space of the housing 1, the control circuit board 9 can be arranged below the support plate, which is also convenient for circuit connection.

[0063] The diffraction plate 6 is etched with a phase-encoded star map generated based on star position data. The phase-encoded star map includes the star map of the seven stars of Beidou, the star map of Orion, and the star map of the twenty-eight constellations. By setting multiple star maps for laser projection display, the interactivity is improved. For example, the diffraction plate 6 can be etched with a twenty-eight constellation phase-encoded star map generated based on the star position data of the "Gan Shi Xing Jing"; a partition multiplexing design is adopted: a Φ5 mm DOE is etched with different constellations in 4 quadrants (7 constellations are etched in each quadrant).

[0064] The laser diode 52 emits laser light, the diameter-limiting transmission window 51 limits the divergence of the laser light, the aluminum substrate 53 fixes the laser diode 52, and the heat sink 54 is used for heat dissipation, ensuring that the entire laser illuminator 5 can work stably and normally.

[0065] The lighting adjustment knob 11, using existing technology, turns the LED light 4 on or off by pressing and holding it for 2 seconds, and adjusts its brightness by rotating it; a short press switches the color temperature of the LED light 4. The laser control button 12, also using existing technology, turns the laser illuminator 5 on or off by pressing and holding it for 3 seconds, and switches the laser projection mode by a short press (single press switches between the Big Dipper constellation, Orion constellation, and Twenty-Eight Mansions constellation; double press activates SOS).

[0066] In this embodiment, the housing 1 also includes a timed shutdown circuit 94 for periodically cutting off power to the laser illuminator 5. The timed shutdown circuit 94 is electrically connected to the control circuit board 9. By setting the timed shutdown circuit 94, forced power-off is achieved, preventing the laser illuminator 5 from overheating during prolonged operation. For example, after the entire photovoltaic science popularization laser camping light has been working for five minutes, it will automatically cut off power, turning off the laser illuminator 5 and the LED light 4. At this time, it is necessary to press and hold the brightness adjustment knob for 112 seconds to restart the LED light 4, and press and hold the laser control button for 3 seconds to restart the laser illuminator 5.

[0067] In this embodiment, a magnetic ring 13 (with an adsorption force ≥ 5N) is embedded in the bottom of the housing 1 on the outer periphery of the photovoltaic panel 8, and a hidden hook 14 is coaxially provided on the bottom of the housing 1 on the outer periphery of the magnetic ring 13. By setting the magnetic ring 13, the entire photovoltaic science popularization laser camping light can be fixed on the outdoor camping tent frame or a car; by using the hidden hook 14, it can be rotated 90° to unfold and used, and can also be hung on the outdoor camping tent, car or tree branch, providing multiple fixing methods for convenient fixing.

[0068] Of course, in actual design, a vacuum adsorption plate can also be set on the housing 1 for fixation.

[0069] The LED lighting 4 is a ring-shaped temperature control indicator light (adjustable color temperature from 2700K to 6500K, adjustable brightness from 50 to 500 lumens) surrounding the diffraction plate 6. The control circuit board 9 is equipped with a temperature sensor to detect the temperature of the laser illuminator 5. Based on the temperature detected by the temperature sensor, the control circuit board 9 controls the brightness of the ring-shaped temperature control indicator light. The higher the temperature detected by the temperature sensor, the brighter the ring-shaped temperature control indicator light, thus providing an overheat warning.

[0070] Furthermore, the control circuit board 9 is also equipped with a light intensity sensor for detecting ambient brightness. Based on the ambient light intensity detected by the light intensity sensor, the control circuit board 9 controls the power variation of the laser illuminator 5. By detecting ambient brightness through the light intensity sensor and then controlling the output power of the laser illuminator 5, intelligent light control is achieved.

[0071] For example, when the ambient light intensity is >200 lux, the power of the laser illuminator 5 is automatically reduced to 0.5mW; when the ambient light intensity is >20000 lux, the power supply of the laser illuminator 5 comes directly from the photovoltaic panel 8 (without consuming the power of the battery 81).

[0072] In this embodiment, a voice module is provided inside the housing 1, and the voice module is electrically connected to the control circuit board 9. When projecting displays using the laser illuminator 5, explanations can be given through the voice module, enhancing the parent-child education experience and improving human-computer interaction. Specifically, the voice module can be a built-in specific voice module or an APP voice module, which connects wirelessly to an APP on a mobile terminal for voice control output.

[0073] In practical use, to improve the human-computer interaction effect, a flexible touch panel can be embedded in the side of the housing 1 to achieve overall control.

[0074] In this embodiment, the housing 1 has at least one first Type-C interface 15 for charging the battery 81 on its side. Above the first Type-C interface 15, the housing 1 has multiple power indicator lights 16 for indicating the battery level of the battery 81. Both the first Type-C interface 15 and the power indicator lights 16 are electrically connected to the control circuit board 9. The first Type-C interface 15 facilitates charging of the battery 81, and the power indicator lights 16 display the battery level of the battery 81, providing a clear view of the battery's energy storage status.

[0075] In actual use, a second Type-C interface 17 for power output can also be provided on the side of the housing 1. The second Type-C interface 17 is electrically connected to the control circuit board 9. Under sufficient sunlight, the power of the photovoltaic panel 8 is directly output to the second Type-C interface 17; under insufficient sunlight, the second Type-C interface 17 is powered by the battery 81.

[0076] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0077] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A photovoltaic science popularization laser camping light, characterized in that, It includes a housing (1) and a lampshade (2), wherein the lampshade (2) is disposed above the housing (1); The housing (1) is provided with a telescopic lamp post (3). One end of the telescopic lamp post (3) is fixed inside the housing (1), and the other end extends into the lamp cover (2) and is fixed inside the lamp cover (2). The lamp cover (2) is provided with an LED lighting lamp (4). The telescopic lamp post (3) is axially provided with a laser illuminator (5) and a diffraction plate (6) for projecting the laser illuminator (5). The lamp cover (2) is provided with a laser window (21) for the laser emitted by the diffraction plate (6) to pass through. A mechanical rotary lock (7) for triggering the laser illuminator (5) to be started is provided between the housing (1) and the lamp cover (2). The bottom of the housing (1) is provided with a photovoltaic panel (8), and the housing (1) is provided with a battery (81) and a control circuit board (9). The laser illuminator (5), the LED lighting lamp (4) and the battery (81) are all electrically connected to the control circuit board (9).

2. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The laser illuminator (5) includes a diameter-limiting transmission window (51), a laser diode (52), an aluminum substrate (53), and a heat sink (54) arranged sequentially from top to bottom along the axial direction of the telescopic lamp post (3); The diameter-limiting transmission window (51) is located below the diffraction plate (6), the laser diode (52) is fixed on the aluminum substrate (53), the laser diode (52) is electrically connected to the control circuit board (9), the heat sink (54) is connected to the aluminum substrate (53), and the heat sink (54) is fixed to the inner wall of the telescopic lamp post (3).

3. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The mechanical rotary lock (7) includes a rotating body sleeved outside the telescopic lamp post (3) and a micro switch set inside the housing (1). The rotating body has a threaded rotating part protruding radially outward between the housing (1) and the lamp cover (2). The rotating body has a toggle part inside the housing (1) for triggering the micro switch to start. The micro switch is electrically connected to the control circuit board (9).

4. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The housing (1) is also provided with a timed shutdown circuit (94) for timed power-off, and the timed shutdown circuit (94) is electrically connected to the control circuit board (9).

5. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The bottom of the housing (1) is provided with a magnetic ring (13) embedded in the outer periphery of the photovoltaic panel (8), and the bottom of the housing (1) is provided with a hidden hook (14) coaxially on the outer periphery of the magnetic ring (13).

6. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The diffraction plate (6) is etched with a phase-coded star map generated based on star position data, which includes the Big Dipper star map, the Orion star map and the Twenty-Eight Mansions star map.

7. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The LED lighting lamp (4) is a ring-shaped temperature control indicator light arranged around the outer periphery of the diffraction plate (6). The control circuit board (9) is provided with a temperature sensor for detecting the temperature of the laser illuminator (5). According to the temperature detected by the temperature sensor, the control circuit board (9) controls the brightness change of the ring-shaped temperature control indicator light.

8. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The control circuit board (9) is equipped with a light intensity sensor for detecting ambient brightness. Based on the light intensity detected by the light intensity sensor, the control circuit board (9) controls the power change of the laser illuminator (5).

9. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The housing (1) is equipped with a voice module, which is electrically connected to the control circuit board (9).

10. The photovoltaic science popularization laser camping light according to claim 1, characterized in that, The housing (1) has at least one first Type-C interface (15) for charging the battery (81) on its side. The housing (1) has multiple power indicator lights embedded above the first Type-C interface (15) for indicating the power of the battery (81). The first Type-C interface (15) and the power indicator lights are electrically connected to the control circuit board (9).

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