LED lamp for myopia prevention and control

Abstract

The utility model discloses a LED lamp that is helpful to myopia prevention and control, solves the problem that the existing desk lamp is complicated to maintain and replace because of the connection of the light source module and the controller through the wire harness. The desk lamp comprises a base, a lamp rod and a lamp head, the base is internally provided with a controller, the lamp head is internally provided with a light source module, both are electrically connected through a specific connecting structure and the light source module is detachable. The connecting structure comprises fixed contacts in the lamp head, connecting contacts on the light source module and contact points on the contact surfaces of both. The lamp head is composed of a lamp shell, a lamp shade and an internal mounting bracket, and the light source module is detachably connected to the mounting bracket through a connecting plate. The plug-in seat is in the shape of a Chinese character "K", is provided with a dustproof component, and has a magnetic attraction element between the fixed contacts and the connecting contacts. These designs enable ordinary users to easily detach and replace the light source module, reduce the operation difficulty, ensure stable connection, and prolong the service life of the desk lamp.

Description

Technical Field

[0001] This utility model relates to the field of desk lamp technology, and in particular to an LED lamp that helps prevent myopia. Background Technology

[0002] In LED lighting, desk lamps are a common type of lighting device widely used in various scenarios, such as studying, working, and living, providing localized lighting and playing an important role in protecting eyesight and creating a comfortable visual environment. Existing desk lamps mainly consist of a lamp head, a lamp post, and a base. The lamp head houses the light source, such as LED beads, responsible for emitting light; the lamp post supports and connects the lamp head to the base, and some desk lamps also have height-adjustable or bending functions on the lamp post to adjust the lighting angle; the base contains a built-in controller and power module. The controller receives user commands to adjust parameters such as brightness and color temperature of the light source, while the power module converts mains power into electrical energy suitable for the light source's operation.

[0003] Currently, in most desk lamps on the market, the light source module installed inside the lamp head typically uses a wiring harness to achieve a stable connection with the controller. This harness directly connects the controller circuit board to the light source module circuit board via insulated wires, with the wires secured to the light source module through soldering or connectors. However, this connection method means that when the light source module inside the lamp head is damaged or needs repair, users need specialized tools to disassemble the solder joints between the wires and the light source module or to plug and unplug the connectors. This is quite difficult for ordinary users and can easily damage the wires or circuit board during the process. Furthermore, if the wires are not properly connected or have poor contact, it can easily cause uneven lighting, flickering, or excessive blue light, further exacerbating eye strain and increasing the risk of myopia.

[0004] Therefore, when the light source module is damaged, existing users either have to replace the entire desk lamp or take it to a professional repair shop for repair, which is very troublesome and cumbersome. Utility Model Content

[0005] The main purpose of this utility model is to provide an LED lamp that helps prevent myopia. It aims to solve the problem that existing desk lamps use wire harnesses to connect the light source module and the controller, which makes it difficult for ordinary users to disassemble the light source module when it is damaged or needs maintenance, and the parts are easily damaged. The replacement or repair is also complicated. By designing a specific connection structure, the light source module can be detached from the controller, which is convenient for users to operate.

[0006] To achieve the above objectives, this utility model proposes an LED lamp that aids in myopia prevention and control, comprising a base, a lamp post, and a lamp head. A controller is housed within the base, and a light source module is housed within the lamp head. The light source module and the controller are electrically connected via a connection structure, and the light source module is detachably mounted relative to the controller. The connection structure includes: The fixed contact is arranged inside the lamp cap, and the fixed contact is electrically connected to the controller through a wire; The connecting contact is fixedly arranged on the light source module and is electrically connected to the light source module. The connecting contact is in plug-in fit with the fixed contact; A plurality of contacts are respectively arranged on one side where the fixed contact and the connecting contact are in contact. The controller and the light source module are electrically connected through the contacts on the two contacts abutting against each other.

[0007] In a possible implementation manner, the lamp cap includes a lamp housing connected to the lamp post and a lamp cover arranged on the lamp housing. An installation bracket is arranged inside the lamp housing, and the light source module is detachably arranged on the installation bracket.

[0008] In a possible implementation manner, a wiring hole communicating with the inside of the base is arranged on the inner wall of the lamp cap. A socket is arranged at the wiring hole. The socket is hollowly arranged, and an opening is arranged on one side thereof facing the lamp cover. The fixed contact is arranged inside the socket, and the contact on the fixed contact is exposed inside the lamp cap through the opening.

[0009] In a possible implementation manner, the light source module includes a connecting plate provided with a circuit board. The connecting plate is detachably connected to the installation bracket; the connecting contact is fixedly arranged on the connecting plate.

[0010] In a possible implementation manner, a plug connector is arranged on the connecting plate. A jack that can be in plug-in fit with the socket is arranged on the plug connector. The connecting contact is arranged inside the jack, and the contact on the connecting contact faces outside the jack and is used for contacting and fitting with the contact on the fixed contact when the jack is plugged on the socket.

[0011] In a possible implementation manner, the cross section of the socket is in a "convex" shape. A plug-in part that is in plug-in fit with the jack is convexly arranged on one side thereof facing the lamp cover. The opening is arranged at the end face of the plug-in part; a dust-proof component is arranged on the plug-in part. The dust-proof component can cover the opening to prevent dust from falling on the contacts through the opening.

[0012] In a possible implementation manner, the dust-proof component includes a connecting frame slidably arranged on the periphery of the plug-in part. A return spring is arranged between the connecting frame and the plug-in part; a rotating shaft rotatably arranged on the connecting frame is further included. A return torsion spring is arranged between the rotating shaft and the connecting frame. A dust-proof cover is further fixedly arranged on the rotating shaft. The dust-proof cover can cover the opening; an abutting part arranged on the plug connector and located on one side of the jack is further included. The abutting part can abut against the connecting frame and drive the connecting frame to slide away from the opening of the plug-in part during the process of the jack being in plug-in fit with the plug-in part, and make the dust-proof cover swing away from the opening during the sliding process.

[0013] In a possible implementation, there are two dust covers, and the two dust covers are symmetrically arranged on both sides of the plugging part.

[0014] In a possible implementation, there are two abutting parts and the two dust covers are in corresponding positions. A driving plate symmetrically arranged with the dust cover is fixedly arranged on the rotating shaft, and the driving plate is located between the abutting part and the connecting frame.

[0015] In a possible implementation, a magnetic attraction part capable of attracting each other is arranged between the fixed contact and the connecting contact.

[0016] In summary, the beneficial effects of the present application are as follows: Compared with the prior art, the LED eye protection desk lamp disclosed in the present application includes a fixed contact electrically connected to a controller in a lamp head, a connecting contact plugging and mating with the fixed contact on a light source module, and contacts on the mating surface of the two, realizing convenient electrical connection between the light source module and the controller and the light source module being detachable relative to the controller. The lamp head adopts a structure including a lamp housing, a lamp cover and an internal mounting bracket, enabling the light source module to be detachably arranged on the mounting bracket, facilitating overall placement and disassembly. A hollow plugging socket with an opening on one side is arranged at a wiring hole on the inner wall of the lamp head, and the fixed contact is placed therein, and the contact is exposed in the lamp head through the opening, facilitating docking with the connecting contact of the light source module. The connecting plate of the light source module is detachably connected to the mounting bracket. A plug connector with a jack is arranged on the connecting plate and is matched with the plugging socket, and the connecting contact is arranged in the jack, and the contact faces outside the jack, ensuring stable connection. By means of a stable electrical connection structure, light fluctuation is avoided, providing a continuous and healthy lighting environment for users and realizing active myopia prevention and control.

[0017] The plugging socket has a "convex" shape design, and its plugging part is provided with a dust prevention component, including a connecting frame, a return spring, a rotating shaft, a return torsion spring, a dust cover and an abutting part on the plug connector. When the jack and the plugging part are plugged and mated, the abutting part drives the connecting frame to slide, driving the dust cover to swing, preventing dust from falling on the contact, and improving connection reliability. A magnetic attraction part is arranged between the plug connector and the plugging socket, further enhancing connection stability. The common effect of these structures is that when the light source module of the desk lamp is damaged or needs to be repaired, ordinary users can easily disassemble and replace it without the aid of professional tools, reducing the operation difficulty, reducing the risk of damaging wires or circuit boards, avoiding the cumbersome process of replacing the whole desk lamp or going to a professional repair shop, and at the same time ensuring stable and reliable connection and extending the service life. Brief Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a schematic diagram of the structure of the lamp holder of this utility model; Figure 5 This is a diagram showing the internal structure of the lamp holder of this utility model; Figure 6 for Figure 5 Enlarged view of the connection structure at point A; Figure 7 This is a structural diagram of the contact head of this utility model; Figure 8 This is a structural diagram of the fixed contact of this utility model; Figure 9 This is a cross-sectional view of the present invention; Figure 10 for Figure 9 Enlarged cross-sectional view of the connection structure at point B; Figure 11 This diagram shows the state where the fixed contact of this utility model is detached from the connecting contact.

[0020] Explanation of icon numbers: 1. Base; 2. Lamp post; 21. Wiring channel; 3. Lamp head; 31. Lamp housing; 32. Lamp shade; 33. Light-transmitting plate; 34. Mounting bracket; 35. Wiring hole; 4. Controller; 5. Light source module; 51. Connecting plate; 52. LED beads; 53. Circuit board; 6. Connection structure; 61. Fixed contact; 62. Connecting contact; 63. Contact point; 64. Socket; 641. Socket part; 65. Socket connector; 66. Socket hole; 7. Dustproof component; 71. Connecting bracket; 72. Return spring; 73. Rotating shaft; 74. Dust cover; 75. Abutment part; 76. Driver board; 8. Magnetic component; 9. Touch panel.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] Example 1 like Figure 1-11 As shown, this utility model proposes an LED lamp that helps prevent myopia, including a base 1, a lamp post 2 and a lamp head 3. A controller 4 is installed in the base 1, and a light source module 5 is installed in the lamp head 3. The light source module 5 and the controller 4 are electrically connected through a connection structure 6.

[0024] The light source module 5 includes a connecting plate 51 and a circuit board 53. The circuit board 53 is equipped with full-spectrum LED beads or golden powder-free LED beads, whose spectrum is close to natural light, which can effectively reduce the proportion of harmful blue light and reduce the risk of retinal light damage, meeting the national standards for myopia prevention lighting fixtures. The connecting plate 51 is fixed to the mounting bracket 34 with screws, which facilitates the periodic replacement of the light source module and ensures that the illumination spectrum is always within the ideal range for myopia prevention.

[0025] like Figure 1-3 As shown, the controller 4 integrates various control circuits, including but not limited to the microcontroller 4, power management circuit, and signal processing circuit set on the PCB board, which are used to achieve precise control of various functions of the desk lamp.

[0026] The lamp post 2, which connects the base 1 and the lamp head 3, has a wiring channel 21 inside to allow wires to pass through, so that the controller 4 can be connected to the fixed contact 61 through the wires.

[0027] And such Figure 4 As shown, the lamp head 3 includes a lamp housing 31 securely connected to the lamp post 2, a lamp shade 32 mounted on the lamp housing 31, and a light-transmitting plate 33 mounted on the lamp shade 32. The lamp shade 32 protects the light source, while the light-transmitting plate 33 can scatter the light to a certain extent, making the lighting effect more uniform and softer. Simultaneously, to improve the lighting effect, through holes for mounting the light-transmitting plate 33 can also be opened in the lamp housing 31, thus achieving lighting on one side of the lamp housing 31 as well.

[0028] Inside the lamp housing 31, the mounting bracket 34 is securely fixed in place. This mounting bracket 34 is designed to provide a stable and detachable mounting platform for the light source module 5; its shape and structure are adapted to the light source module 5, ensuring accurate placement and fixation. Specifically, as... Figure 3-4As shown, the light source module 5 includes a connecting plate 51 and a circuit board 53 disposed on the connecting plate 51. Electronic components required to achieve light emission and related functions of the light source, such as LED lamp beads 52 and their driving circuits, etc., are mounted on the circuit board 53, and are used to achieve lighting effects under the control of the controller 4. The connecting plate 51 can be fixedly connected to the mounting bracket 34 through fixing methods such as screws or snaps. In this embodiment, the connecting plate 51 and the mounting bracket 34 are fixed by screws, so as to facilitate the easy disassembly and installation of the light source module 5 when needed.

[0029] As Figure 5-6 shown, an electrical connection between the light source module 5 and the wire connecting the controller 4 is achieved through the contact 63 on the fixed contact 61 and the connecting contact 62.

[0030] Specifically, as Figure 10 shown, a wiring hole 35 is provided at the position where the lamp housing 31 is connected to the lamp post 2. The wiring hole 35 is connected to the inside of the base 1 through the wiring channel 21 inside the lamp post 2. A socket 64 is provided at the wiring hole 35. The socket 64 is hollowly provided, and the socket 64 has a "convex" cross-section. A convex portion 641 is formed on the side facing the lamp cover 32, and an opening is provided at the end face of the convex portion 641. The fixed contact 61 is disposed inside the socket 64. The fixed contact 61 is electrically connected to the controller 4 inside the base 1 through a wire passing through the wiring hole 35. These wires are arranged along the wiring channel 21 inside the lamp post 2 to ensure the neatness and safety of the lines. The contact 63 on the fixed contact 61 is exposed in the internal space of the lamp head 3 through the opening at the end face of the convex portion 641.

[0031] The connecting contact 62 is disposed on the connecting plate 51. Specifically, a plug connector 65 is provided on the connecting plate 51. A jack 66 that can be inserted and mated with the socket 64 is provided on the plug connector 65. The connecting contact 62 is disposed inside the jack 66, and the contact 63 on the connecting contact 62 faces outside the jack 66. When installing the light source module 5, the jack 66 of the plug connector 65 is aligned with the convex portion 641 of the socket 64 and inserted. At this time, the contact 63 on the connecting contact 62 and the contact 63 on the fixed contact 61 are in mutual contact, thereby achieving the electrical connection between the controller 4 and the light source module 5.

[0032] Furthermore, as Figure 7-8 shown, a magnetic attraction member 8 that can attract each other is provided between the fixed contact 61 and the connecting contact 62. The magnetic attraction member 8 is a magnet disposed on the periphery of the contacts 63 of the connecting contact 62 and the fixed contact 61. Through the mutual attraction between the magnets, the stability of the contact between the connecting contact 62 and the fixed contact 61 can be ensured, and at the same time, the precise contact of the contacts 63 on the two contacts can be ensured.

[0033] When the user needs to install the light source module 5, first align the socket 66 of the connector 65 on the connecting plate 51 with the plug portion 641 of the connector 64 and insert it, so that the contact 63 on the connecting contact 62 abuts against the contact 63 on the fixed contact 61, establishing an electrical connection between the controller 4 and the light source module 5. Then, fix the connecting plate 51 to the mounting bracket 34 inside the lamp housing 31 with screws.

[0034] Then, the controller 4 sends a control signal through the signal processing circuit, which is transmitted to the driving circuit of the light source module 5 via the fixed contact 61 and the connecting contact 62, driving the LED beads to emit light and realize the lighting function. The user can operate the various function buttons on the base 1 connected to the controller 4, and the microcontroller 4 receives and processes the signals, which are then transmitted to the light source module 5 through the connection structure 6 to realize functions such as brightness adjustment and mode switching.

[0035] When the user disassembles the light source module 5, they can first remove the screws between the connecting plate 51 and the mounting bracket 34, then hold the connecting plate 51 and directly pull the connector 65 off the connector 641 to separate the connecting contact 62 from the fixed contact 61, thereby completing the disassembly of the light source module 5.

[0036] With the above structure, the mounting bracket 34 is fixed to the light source module 5 with screws, facilitating the disassembly and installation of the light source module 5 and making maintenance and replacement easier. The plug-in socket 64 adopts a hollow "U"-shaped design, with the fixed contact 61 placed inside and the contact point 63 exposed through the opening, aligning with the contact point 63 of the contact head 62 inside the socket 66 of the connector 65 on the connecting plate 51. This connection structure 6 achieves a convenient and stable electrical connection, and the plug-in part 641 and the socket 66 can position the contact point 63 on the two contacts, thereby ensuring the stability of the contact point 63 connection. This stable connection can prevent light flickering caused by poor contact of the light source module, and stable light output is an important indicator for preventing myopia.

[0037] Example 2, Based on Embodiment 1, after the user disassembles the light source module, the contact 63 of the fixed contact 61 will be exposed to the air, which can easily cause dust in the air to settle on the same contact 63 of the fixed contact 61, affecting the reliability of the connection between the two contacts. Therefore, this embodiment adds a dustproof component 7 to Embodiment 1.

[0038] like Figure 7-11As shown, the dustproof assembly 7 includes a connecting frame 71 slidably disposed around the plug-in portion 641, with a return spring 72 disposed between the connecting frame 71 and the plug-in portion 641; it also includes a rotating shaft 73 rotatably disposed on the connecting frame 71, with a return torsion spring disposed between the rotating shaft 73 and the connecting frame 71, and a dust cover 74 fixedly disposed on the rotating shaft 73, the dust cover 74 covering the opening; it also includes an abutment portion 75 disposed on the plug-in portion 65 and located on one side of the plug hole 66, the abutment portion 75 abutting against the connecting frame 71 during the plug-in insertion and engagement of the plug hole 66 and the plug-in portion 641, driving the connecting frame 71 to slide away from the opening of the plug-in portion 641, and causing the dust cover 74 to swing away from the opening during the sliding process. Two dust covers 74 are provided, symmetrically disposed on both sides of the plug-in portion 641. The abutment part 75 is provided with two dust covers 74 in corresponding positions. A drive plate 76 is fixedly provided on the rotating shaft 73, which is symmetrically arranged with the dust cover 74. The drive plate 76 is located between the abutment part 75 and the connecting frame 71.

[0039] Specifically, the dustproof component 7 includes a connecting frame 71 slidably disposed around the plug-in portion 641, with a return spring 72 installed between the connecting frame 71 and the plug-in portion 641. A rotating shaft 73 is rotatably disposed on the connecting frame 71, and a return torsion spring is provided between the rotating shaft 73 and the connecting frame 71. A dust cover 74 is also fixedly mounted on the rotating shaft 73, the size and position of which are designed to effectively cover the opening on the end face of the plug-in portion 641. Meanwhile, an abutment portion 75 is provided on the plug-in portion 65 on the side of the plug hole 66. When the plug hole 66 is plugged into the plug-in portion 641, the abutment portion 75 abuts against the connecting frame 71 and pushes the connecting frame 71 to slide away from the opening of the plug-in portion 641 during insertion. As the connecting bracket 71 slides, the dust cover 74 overcomes the effect of the return torsion spring, allowing it to swing away from the opening under the force of the insertion part 641. This automatically opens the opening during insertion, facilitating the engagement of the contacts 63. The structure of the torsion spring is not shown in the figure; using a torsion spring to reset the rotating shaft 73 is a common practice in the field. When not in use, the return spring 72 and the return torsion spring return the connecting bracket 71 and the dust cover 74 to their initial positions, with the dust cover 74 covering the opening to prevent dust. To enhance the dustproof effect and structural symmetry, two dust covers 74 are provided, symmetrically distributed on both sides of the insertion part 641. Correspondingly, two abutment parts 75 are also provided, corresponding to the positions of the two dust covers 74. A drive plate 76, symmetrical to the dust cover 74, is also fixedly installed on the rotating shaft 73. The drive plate 76 is located between the abutment part 75 and the connecting frame 71. In this way, when the abutment part 75 pushes the connecting frame 71, the drive plate 76 can more effectively drive the dust cover 74 to open.

[0040] During the installation of the light source module, the connector 65, with the socket 66, is inserted into the connector portion 641. At this time, the abutment portion 75 located on one side of the socket 66 first contacts the connecting bracket 71. As the connector 65 continues to be inserted, the abutment portion 75 pushes the connecting bracket 71 to slide along the periphery of the connector portion 641, and the return spring 72 between the connecting bracket 71 and the connector portion 641 is compressed. During the sliding process of the connecting bracket 71, the end face of the connector portion 641 exerts an upward force on the dust cover 74, thereby causing the dust cover 74 to rotate along the pivot 73 to swing away from the opening, thereby automatically opening the end face opening of the connector portion 641, so that the contacts 63 on the fixed contact 61 and the connecting contact 62 can smoothly align to achieve electrical connection.

[0041] When the light source module is disassembled, under the action of the reset spring 72 and the reset torsion spring, the connecting bracket 71 slides towards the opening of the plug-in part 641 to return to the initial position, causing the dust cover 74 to rotate and cover the end face opening of the plug-in part 641 to prevent dust in the air from falling on the contact point 63 of the fixed contact 61.

[0042] Two dust covers 74 symmetrically distributed on both sides of the insertion part 641 enhance the dustproof effect while ensuring structural symmetry. Correspondingly, two abutment parts 75 are provided, each corresponding to one of the dust covers 74. A drive plate 76 is mounted on the pivot 73 between the abutment parts 75 and the connecting frame 71. This allows the abutment parts 75 to push the connecting frame 71, which in turn drives the dust covers 74 to open more effectively via the drive plate 76, further optimizing the performance of the dustproof component 7. Overall, the dustproof component 7, through its ingenious mechanical structure design, effectively prevents dust from falling onto the contact point 63 without affecting the normal installation and removal of the light source module. This improves the reliability of the connection between the two contacts and ensures the stability and lifespan of the desk lamp's electrical connection.

[0043] Example 3 Based on Example 1, this example provides a detailed description of the functions of the LED eye-protection desk lamp. The functions are all based on existing technologies and are mainly implemented through circuit modules.

[0044] Specifically, such as Figure 3As shown, the base 1 integrates control circuits and related sensors to achieve various functions. The lamp head 3 houses a light source module 5 that provides illumination. The base 1 also houses a controller 4 that integrates various functions and related sensors. The controller 4 is a PCB board. The sensors include an ambient light sensor for detecting ambient light intensity, an infrared sensor for sensing the human body, or other proximity sensors, all mounted on the base 1 or the lamp post 2. The lamp post 2 connects the base 1 and the lamp head 3 and may have a wiring channel 21 inside for connecting the circuits between the base 1 and the lamp head 3. The lamp head 3 houses the light source module 5, which includes an array of LED beads with different color temperatures and a corresponding driver circuit board 53. The driver circuit board 53 allows for independent control of the lighting status and brightness of the LED beads with different color temperatures.

[0045] Among them, the ambient light sensor can monitor the ambient light intensity in real time and automatically adjust the brightness and color temperature of the light source module 5 through the controller 4, so that the illuminance of the working surface is maintained in the recommended range of 300-500 Lux for myopia prevention.

[0046] A touch panel 9 is provided on the base 1, which can control and adjust the light source module 5 through the controller 4.

[0047] Specifically, the on / off or delay button function is implemented as follows: When the on / off or delay button is pressed briefly, the controller 4 generates an electrical signal. This electrical signal triggers the microcontroller 4 through the PCB board. The microcontroller 4 executes the corresponding on / off operation based on the current working state of the desk lamp (whether it is on or off). When the lamp is first turned on by pressing this button, the preset program in the microcontroller 4 sets the desk lamp to read / write mode by default. At this time, the microcontroller 4 controls the drive circuit of the light source module 5 to make the backlight of the button corresponding to the read / write mode light up, and at the same time controls the drive circuit to drive the LED beads 52 in the light source module 5 with a 100% duty cycle, thereby achieving 100% brightness output. The desk lamp has a non-volatile memory function because the microcontroller 4 stores the mode and brightness information before the last time the lamp was turned off in non-volatile memory. When the light is on, pressing and holding this button continuously transmits the electrical signal to the microcontroller 4. The microcontroller 4 activates the 1-minute delay-off function and sends a command to the light source module 5 via the driver circuit. This causes the main light to first increase the duty cycle of the driver signal by 20% for 1 second, and then decrease the duty cycle by 20% for 1 second, serving as a reminder. During this time, the button backlight illuminates and flashes at a specific frequency, controlled by the microcontroller 4 through its driver circuit. When the 1-minute delay ends, the microcontroller 4 sends a turn-off command to the driver circuit of the light source module 5, causing the LED beads 52 to stop emitting light, and the button backlight remains constantly on. Pressing and holding the button again during the delay sends an electrical signal to the microcontroller 4 to deactivate the delay-off function. The microcontroller 4 then controls the button backlight driver circuit to turn it off. Since the auxiliary light source's driver circuit is independent of the main light's delay-off control circuit, the switching operation does not affect the auxiliary light source.

[0048] The daytime mode button works as follows: regardless of the lamp's current state after power-on, a short press of this button closes the internal contact 63, generating an electrical signal that is transmitted to the microcontroller 4 via the PCB trace. Upon receiving the signal, the microcontroller 4 directly controls the lamp to turn on and enters the operating mode. In operating mode, the microcontroller 4 adjusts the driving current ratio of different color temperature LED beads 52 in the light source module 5's driving circuit to adjust the color temperature to 4000K, and simultaneously controls the backlight driving circuit of the daytime mode button to illuminate the button's backlight. When the lamp is first turned on by pressing this button, the microcontroller 4 sets the brightness to 100% according to the preset program, meaning it controls the driving circuit to drive the LED beads 52 with a 100% duty cycle. The microcontroller 4 reads and stores the brightness information from the last time this mode was used in its non-volatile memory, achieving a continuous brightness memory function. When entering this mode again, it adjusts the duty cycle of the driving circuit based on the stored information to control the light source module 5 to achieve the corresponding brightness.

[0049] The night mode button works similarly to the day mode button. A short press of this button generates an electrical signal that is transmitted to the microcontroller 4. The microcontroller 4 then turns on the desk lamp and enters read / write mode. By adjusting the driver circuit of the light source module 5, the color temperature is adjusted to 3000K, and the backlight of the night mode button is illuminated. Upon first power-on, pressing this button results in a default brightness of 100%. Similarly, the brightness is remembered and adjusted by the microcontroller 4's reading and control of the driver circuit based on the previous brightness information stored in non-volatile memory.

[0050] When the Zero Blue Mode button is powered on, a short press generates an electrical signal that is transmitted to the microcontroller 4. The microcontroller 4 controls the lamp to turn on directly or enter the leisure mode. By adjusting the driving circuit of the light source module 5, the color temperature is set to 1800K, and the backlight of the Zero Blue Mode button is lit. When the button is pressed for the first time after power-on, the default brightness is 100%, and the brightness memory function is realized by using non-volatile memory. The microcontroller 4 controls the driving circuit to realize the corresponding color temperature and brightness adjustment.

[0051] When the night light button is pressed, a short press activates the night light function, and the electrical signal generated by the button is transmitted to the microcontroller 4. The microcontroller 4 controls the night light source drive circuit, causing the 1800K night light source to cycle through a preset sequence of 100%-50%-off, while simultaneously illuminating the night light indicator on the button. The night light source and the main light source are controlled by independent drive circuits, so the switching operation only affects the night light source and does not affect the main light source.

[0052] Regarding the seat-sensing button, a short press generates an electrical signal that is transmitted to the microcontroller 4, which then turns the seat-sensing function on or off. When the function is on, the microcontroller 4 controls the backlight drive circuit of the seat-sensing button, illuminating the button's backlight. Simultaneously, it sends a command to the main lamp via the light source module 5 drive circuit, causing the main lamp to first increase the drive signal duty cycle by 20% for 1 second at the current brightness, then decrease the duty cycle by 20% for 1 second as a prompt. An infrared sensor or other proximity sensor within the base 1 continuously monitors the surrounding environment. When the sensor detects a person leaving the seat, it sends a corresponding signal to the microcontroller 4, which then starts an internal timer. After 5 minutes, the microcontroller 4 switches the lamp to night light mode via the light source module 5 drive circuit, adjusting the brightness to 10%. After another 3 minutes, the microcontroller 4 sends a command to turn off the light. When the sensor detects someone sitting down again, the microcontroller 4 reads the lighting mode and status information from the non-volatile memory before turning off the light, restores the corresponding mode and brightness via the light source module 5 drive circuit, and simultaneously illuminates the backlight of the corresponding mode button. The sensing angle for the seated light-up function is ≤120 degrees, and the sensing distance is ≤0.8M. This is determined by the physical characteristics of the sensor itself. The sensing range and angle of the sensor are determined during the design and manufacturing process, and the microcontroller 4 sets the processing range of the sensor signal based on these characteristics.

[0053] A short press of the automatic dimming button activates the function. The electrical signal generated by the button is transmitted to the microcontroller 4, which then turns on the button backlight. Simultaneously, the main light provides a brightness adjustment indicator via the light source module 5 driving circuit. Once activated, the ambient light sensor monitors the ambient light intensity in real time and converts the detected light intensity signal into an electrical signal, which is then transmitted to the microcontroller 4. The microcontroller 4 compares the current ambient light intensity with the target illumination center brightness of 1000 LUX using a preset algorithm, calculates the required brightness adjustment value, and then automatically adjusts the light brightness via the light source module 5 driving circuit. In this mode, users can switch between work, reading / writing, and leisure modes using the corresponding buttons, but brightness adjustment is automatically performed by the microcontroller 4 based on ambient light; manual adjustment is not possible. If the user touches the brightness adjustment slider, the electrical signal generated by the slider is transmitted to the microcontroller 4. Upon receiving the slider signal, the microcontroller 4 deactivates the automatic light sensing function, maintains the current color temperature, turns off the button backlight, and simultaneously calculates and adjusts the brightness to the corresponding level based on the electrical signal value corresponding to the slider touch position via the light source module 5 driving circuit.

[0054] The Tomato Timer button, in any power-on state, can be briefly pressed to turn Tomato Mode on or off. The electrical signal generated by the button is transmitted to the microcontroller 4. When activated, the microcontroller 4 controls the backlight of the Tomato Timer button to illuminate, and simultaneously uses the light source module 5's drive circuit to provide a brightness adjustment indicator for the main light. After Tomato Mode is activated, the microcontroller 4 starts its internal timer to control the light source module 5 according to a set workflow. The main light works for 25 minutes, then rests for 5 minutes. During the rest period, the drive circuit reduces the brightness from the current level to 10%, then restores the brightness to the working level and continues working for another 25 minutes, repeating this cycle. While in Tomato Mode, users can still adjust the brightness and switch between internet browsing, study, and leisure modes using the corresponding buttons. This is because the Tomato Mode's timing control circuit is compatible with the brightness and mode adjustment circuits, allowing the microcontroller 4 to respond to different user operation commands simultaneously and control the corresponding drive circuits.

[0055] Example 4 Based on Example 1, full-spectrum LEDs and golden yellow powder-free LEDs can be added to the LED beads 52 in the light source module 5, and various modes can be set accordingly. The effects achieved by the following modes are all achieved by the properties of the golden yellow light emitted by the golden yellow powder-free LEDs, which are existing technologies. In daytime mode, the LED head contains 72 full-spectrum LED beads that emit light. This mode simulates the solar spectrum, with the color temperature controlled at around 4000K. It maintains a relatively high proportion of blue light, which can promote the secretion of dopamine and cortisol in the brain, while inhibiting melatonin secretion, thus ensuring an excited and focused state during daytime work and study. In nighttime reading mode, 72 full-spectrum LED beads and 72 groups of golden LED beads inside the LED head emit light simultaneously. In this mode, the spectrum significantly reduces the proportion of blue light compared to traditional lighting, while the color temperature is controlled at around 3000K, minimizing the suppression of melatonin secretion and effectively relieving eye fatigue in accordance with the body's circadian rhythm. In the zero-blue-light mode before sleep, the 72 groups of golden LED beads inside the LED head emit light, with the color temperature controlled at around 1800K. The spectrum reduces blue light by 100% compared to traditional lighting, truly achieving zero blue light. This effectively reduces the probability of dry eye and conjunctivitis, effectively prevents the progression of myopia, does not suppress melatonin secretion, effectively relaxes the mind and body, and helps one fall asleep faster. At the same time, the zero-blue-light mode before sleep neutralizes the blue light from mobile phone and computer screens, truly achieving eye protection.

[0056] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0057] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An LED lamp for myopia prevention and control, comprising a base (1), a lamp pole (2) and a lamp head (3), wherein a controller (4) is arranged in the base (1), and a light source module (5) is arranged in the lamp head (3), characterized in that, The light source module (5) and the controller (4) are electrically connected through a connection structure (6), and the light source module (5) is detachably mounted relative to the controller (4); the connection structure (6) includes: A fixed contact (61) is disposed inside the lamp holder (3), and the fixed contact (61) is electrically connected to the controller (4) through a wire; A connecting contact (62) is fixedly mounted on the light source module (5) and electrically connected to the light source module (5). The connecting contact (62) is plugged into the fixed contact (61). Several contacts (63) are respectively disposed on the side of the fixed contact (61) and the connecting contact (62) that are in contact with each other. The controller (4) and the light source module (5) are electrically connected by the contact (63) on the two contacts abutting each other.

2. The LED lamp for myopia prevention and control according to claim 1, characterized in that, The lamp head (3) includes a lamp housing (31) connected to the lamp post (2) and a lamp shade (32) disposed on the lamp housing (31). A mounting bracket (34) is disposed inside the lamp housing (31), and the light source module (5) is detachably disposed on the mounting bracket (34).

3. The LED lamp for myopia prevention and control according to claim 2, characterized in that, The inner wall of the lamp head (3) is provided with a wiring hole (35) that connects to the base (1). A plug-in socket (64) is provided at the wiring hole (35). The plug-in socket (64) is hollow and has an opening on the side facing the lamp cover (32). The fixed contact (61) is located in the plug-in socket (64), and the contact point (63) on the fixed contact (61) is exposed in the lamp head (3) through the opening.

4. An LED lamp for myopia prevention and control according to claim 3, characterized in that, The light source module (5) includes a connecting plate (51) with a circuit board (53) and the connecting plate (51) is detachably connected to the mounting bracket (34); the connecting contact (62) is fixedly mounted on the connecting plate (51).

5. An LED lamp for myopia prevention and control according to claim 4, characterized in that, The connecting plate (51) is provided with a plug (65), the plug (65) is provided with a socket (66) that can be plugged into the socket (64), the connecting contact (62) is provided in the socket (66), and the contact (63) on the connecting contact (62) faces the outside of the socket (66), so as to contact and fit with the contact (63) on the fixed contact (61) when the socket (66) is inserted into the socket (64).

6. An LED lamp for myopia prevention and control according to claim 5, characterized in that, The cross-section of the socket (64) is convex, and a plug part (641) is provided on the side facing the lampshade (32) to engage with the socket (66). The opening is provided on the end face of the plug part (641). A dustproof component (7) is provided on the plug part (641). The dustproof component (7) can cover the opening to prevent dust from falling onto the contact (63) through the opening.

7. An LED lamp for myopia prevention and control according to claim 6, characterized in that, The dustproof component (7) includes a connecting frame (71) slidably disposed around the plug-in portion (641), and a return spring (72) is provided between the connecting frame (71) and the plug-in portion (641); it also includes a rotating shaft (73) rotatably disposed on the connecting frame (71), and a return torsion spring is provided between the rotating shaft (73) and the connecting frame (71), and a dust cover (74) is fixedly disposed on the rotating shaft (73), and the dust cover (74) can cover the opening; it also includes an abutting part (75) disposed on the plug-in portion (65) and located on one side of the plug hole (66), the abutting part (75) can abut against the connecting frame (71) and drive the connecting frame (71) to slide away from the opening of the plug-in portion (641) during the plug-in process of the plug hole (66) and the plug-in portion (641), and allow the dust cover (74) to swing away from the opening during the sliding process.

8. An LED lamp for myopia prevention and control according to claim 7, characterized in that, Two dust covers (74) are provided, and the two dust covers (74) are symmetrically arranged on both sides of the plug (641).

9. An LED lamp for myopia prevention and control according to claim 7, characterized in that, The abutment part (75) is provided in two positions and the two dust covers (74) are in corresponding positions. A drive plate (76) is fixedly provided on the rotating shaft (73) and is symmetrically arranged with the dust cover (74). The drive plate (76) is located between the abutment part (75) and the connecting frame (71).

10. An LED lamp for myopia prevention and control according to claim 5, characterized in that, A magnetic attraction element (8) is provided between the fixed contact (61) and the connecting contact (62) to attract each other.

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