External induction lamp of mobile electronic equipment
By incorporating a button battery and charging plug design, along with a damping hinge, flexible back clip, and magnetic plate, the problem of traditional sensor lights being large and inconvenient to operate is solved, achieving a stable connection with mobile devices and convenient use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HOPOT ELECTRONICS CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional portable sensor lights are large and inconvenient to operate, cumbersome to hold for extended periods, and prone to falling when getting up at night. They also cannot be stably integrated with mobile devices.
Featuring a button battery design, combined with a charging plug, damping hinge, flexible back clip, and magnetic plate, this device securely connects the sensor light to mobile devices. The damping hinge allows for adjustment of the light angle, and the charging plug and flexible back clip enhance the device's grip and prevent it from slipping off.
It achieves a stable integration of the sensor light with mobile devices, reducing hand operation, preventing drops, reducing size, making it easy to carry and use, adapting to different device thicknesses, and reducing cost and volume.
Smart Images

Figure CN224261635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart home technology, specifically to an external sensor light for mobile electronic devices. Background Technology
[0002] Sensor lights are a type of modern smart home appliance, typically installed at the head of the bed, beside the bed, or on the wall. They are mainly used for motion lighting when people go to the toilet at night. Compared to traditional lights, sensor lights do not require manual switching. They usually have built-in sensors that can detect the passage of people, thus achieving automatic switching. Compared to fumbling for switches or mobile phones in the dark, they are simple and convenient to operate, and the brightness is soft with a smaller illumination range, reducing the impact on other sleeping people.
[0003] Traditional portable sensor lights are usually placed on a lamp base using magnetic attachment. When people need to get up at night, they can simply remove the sensor light from the lamp base for illumination. However, in actual use, firstly, portable sensor lights are usually slightly larger than or equal to the size of an average person's fist, requiring them to be held in their hand, making them easy to slip and drop. Secondly, some people like to use their mobile phones when getting up at night to use the toilet, eat snacks, or have a late-night meal, especially since the time spent on the toilet is relatively long, making it inconvenient to hold the phone for extended periods. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide an external sensor light for mobile electronic devices to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an external sensor light for mobile electronic devices, comprising a housing, a lampshade and a control circuit board respectively disposed on one side of the housing, and an LED bead, a reflector, a human infrared sensor, a photoresistor and several other components respectively mounted on one side of the control circuit board; a battery compartment is installed inside the housing, and a button battery is disposed inside the battery compartment, and a battery cover is connected to one side of the battery compartment; a bracket is connected to the lower side of the other side of the housing via a damping hinge, a wire harness is connected between the bracket and the housing, and cover plates are attached between the housing, the bracket and the damping hinge; a charging plug is embedded in the top of the bracket; an elastic back clip is connected to one side of the bracket, and a magnetic plate is connected to the upper side of the elastic back clip.
[0006] By adopting the above technical solution, when placing the device for use, the user selects a Type-C charging head with the Type-C interface parallel to the ground, allowing the light from the sensor to shine onto the ground. If the wall socket is parallel to the ground, a charging head with the Type-C interface perpendicular to the ground is used. Combined with a horizontal wall socket, this ensures the light from the sensor still shines onto the ground. The outer shell can rotate on the stand via a damping hinge to adjust the light angle. Simultaneously, the elastic back clip, in conjunction with the charging plug, provides a certain degree of clamping, preventing it from falling off. When carrying the device, the charging plug allows for easy integration of the sensor with mobile devices such as phones, tablets, and power banks, eliminating the need to hold the device and sensor separately. The stand can rotate via the damping hinge, allowing adjustment of the sensor's direction and angle, for example, turning it towards the phone for better illumination. The light is designed for use on bright surfaces, allowing it to be turned towards the front of the phone for better illumination. It can be magnetically attached to the back of the mobile device, increasing its resistance to falling off. The flexible back clip and rotating magnetic clip allow the magnetic clip to move within a certain range, adapting to mobile devices of varying thicknesses. Even if the mobile device's casing is not magnetically attached, the flexible back clip, combined with the charging plug, can still provide a certain degree of grip, preventing it from falling off. Furthermore, this sensor light uses a button battery instead of the traditional cylindrical battery, reducing its size and making it more portable. The sensor light is always charging, whether placed or carried, and can be charged via a charging plug. The button battery only provides short-term power when switching power sources to prevent the sensor light from turning off, such as when transferring the sensor light from the charging head to the mobile device or vice versa.
[0007] Furthermore, the battery cover is provided with buckles at the top and bottom, and the battery cover is detachably connected to the outer casing.
[0008] By adopting the above technical solution, when the button battery ages and breaks, the battery cover can be pried up and removed, and then the button battery in the battery compartment can be replaced. After replacing the button battery, the battery cover can be put back into the outer shell.
[0009] Furthermore, the bracket is rotatably connected to the outer casing via a damping pivot.
[0010] By adopting the above technical solution, the outer casing can be rotated on the bracket via a damping pivot to adjust the lighting angle or change the lighting direction. For example, it can be rotated to face the phone to facilitate illuminating the ground, or rotated to face the front of the phone to facilitate supplemental lighting.
[0011] Furthermore, the elastic back clip is made of stainless steel.
[0012] By adopting the above technical solution, the elastic back clip is made of stainless steel, such as 304 or 316 stainless steel, which has good corrosion resistance and extends the service life of the structure.
[0013] Furthermore, the magnetic suction plate is rotatably connected to the elastic back clip.
[0014] By adopting the above technical solution, and through the setting of elastic back clip and magnetic plate rotation connection, the magnetic plate can move within a certain range to adapt to mobile devices of different thicknesses.
[0015] Furthermore, the control circuit board is a double-layer circuit board, and several components on the side of the control circuit board include an 8205A battery protection IC, a 0805 sampling resistor of 10mΩ, a TVS transient suppression diode, an STM8L151F3 ultra-low power MCU, a TP4054 lithium battery charging management chip, a 0805 packaged filter capacitor, a Schottky diode, an N-channel MOSFET, a resettable fuse, a voltage divider resistor, an adjustable resistor, and a delay capacitor. The LED beads, human infrared sensor, photoresistor, battery compartment, button battery, wiring harness, and charging plug are all electrically connected to the control circuit board.
[0016] By adopting the above technical solution, when a user waves or passes by in front of the lampshade, the human infrared sensor will detect the human body, and at the same time the photoresistor will detect the ambient light. If there is no light around, the lamp will be activated and emit light, which will be focused by the built-in lens and reflector of the lampshade. If the ambient light is bright, the lamp will not be activated, thus avoiding accidental activation of the sensor light. The sensor light is existing technology, and the specific structure and principle will not be described in detail in this technical solution. For example, the 8205A battery protection IC on the side of the control circuit board prevents overcharging and over-discharging, thus extending the service life of the button battery. Another example is the STM8L151F3 ultra-low power MCU controlling the sensing logic.
[0017] Furthermore, the outer shell and the bracket are both made of ABS material, and the lampshade is made of PC material, with sealant provided between the lampshade and the outer shell.
[0018] By adopting the above technical solutions, ABS material is widely used in electrical appliances, with high structural strength and good insulation and flame retardant effects. PC material is also widely used in lampshades, with advantages such as good light transmission and light weight.
[0019] Furthermore, the human infrared sensor is model HC-SR501, the photoresistor is model GL5528, the button battery is model LIR24540, the charging plug is a Type-C plug, and the LED is a 0805 packaged high-brightness LED.
[0020] By adopting the above technical solution, the button battery of LIR24540 can be recharged, reducing waste. The significance of using a Type-C plug is that, among the three conventional interfaces, the market share of Micro USB is gradually decreasing, and most models using this interface are older mobile devices that usually do not have external discharge function except for power banks. Although the Lightning interface has external discharge function, mobile devices using this connector usually do not have external discharge function except for power banks. Therefore, even if MicroUSB and Lightning plugs are added, they may not be usable. The Type-C interface is the most common interface on the market, and devices with this interface usually have external discharge function.
[0021] Furthermore, a bolt is provided between the elastic back clip and the bracket, and the elastic back clip and the bracket are detachably connected.
[0022] By adopting the above technical solution, if the user does not want to use the elastic back clip and magnetic plate, the user can loosen and remove the bolts between the elastic back clip and the bracket, or disassemble and replace the broken elastic back clip.
[0023] Furthermore, the wiring harness is a silicone wire.
[0024] By adopting the above technical solution, the flexibility and waterproof properties of silicone wires are better than those of traditional rubber-insulated wires. Therefore, the wire harness can withstand the bending caused by frequent, repeated, and long-term rotation of the bracket and the outer shell, resulting in a longer service life.
[0025] In summary, the present invention has the following main advantages:
[0026] 1. This utility model, through the design of a charging plug, bracket, wiring harness, and damping hinge, allows for easy integration of the sensor light with mobile devices such as mobile phones, tablets, and power banks. This eliminates the need to hold the mobile device and sensor light separately. The bracket, via the damping hinge, can rotate to adjust the direction and angle of the sensor light; for example, it can be rotated to face the phone for better ground illumination or to face the front of the phone for supplemental lighting. When not in use, the charging plug can be inserted into a Type-C charging head, automatically activating when someone passes by. The bracket and damping hinge can also be used to adjust the light angle. This design is convenient to carry and use, offering good flexibility.
[0027] 2. This utility model replaces the cylindrical battery in traditional sensor lights with a button battery, reducing the size of the sensor light and making it more portable. The sensor light is always charging, whether placed or carried, and can be charged via a charging plug. The button battery only provides power briefly when switching power sources, preventing the sensor light from turning off, i.e., when transferring the sensor light from the charging head to the mobile device or vice versa. The battery meets the requirements, reducing cost and size.
[0028] 3. This utility model, through the design of an elastic back clip and a magnetic plate, avoids the inability of some older mobile phones with loose interfaces to limit the sensor light through the charging plug. Furthermore, to increase the stability of the sensor light on mobile devices, the magnetic plate can be attached to the back of the mobile device, enhancing the sensor light's anti-fall-off effect. The elastic back clip and the rotating connection of the magnetic plate allow the magnetic plate to move within a certain range, adapting to mobile devices of different thicknesses. Even if the mobile device's shell is not magnetically attached, the elastic back clip, in conjunction with the charging plug, can still achieve a certain clamping effect, preventing fall-off and increasing the stability of the sensor light combined with the mobile device. Attached Figure Description
[0029] Figure 1 This is a bottom view of the structure of this utility model;
[0030] Figure 2 This is a side view of the present invention.
[0031] Figure 3 This is a schematic diagram of the exploded structure of the support of this utility model;
[0032] Figure 4 This is a side view of the control circuit board structure of this utility model;
[0033] Figure 5 This is a schematic diagram of the elastic back clip explosion structure of this utility model.
[0034] In the diagram: 1. Outer shell; 2. Lampshade; 3. Control circuit board; 4. LED beads; 5. Reflector; 6. Human infrared sensor; 7. Photoresistor; 8. Battery cover; 9. Battery compartment; 10. Button battery; 11. Bracket; 12. Wiring harness; 13. Damping hinge; 14. Cover plate; 15. Charging plug; 16. Flexible back clip; 17. Magnetic plate. Detailed Implementation
[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0036] The embodiments of this utility model will be described below based on its overall structure.
[0037] Example 1:
[0038] An external sensor light for mobile electronic devices, such as Figures 1-4 As shown, the device includes a housing 1. A lampshade 2 and a control circuit board 3 are respectively mounted on one side of the housing 1. The lampshade 2 is made of PC material, and sealant is applied between the lampshade 2 and the housing 1. The control circuit board 3 is a double-layer circuit board. One side of the control circuit board 3 is equipped with LED beads 4, a reflector 5, a human infrared sensor 6, a photoresistor 7, and several other components. The human infrared sensor 6 is model HC-SR501, the photoresistor 7 is model GL5528, and the LED beads 4 are 0805 packaged high-brightness LEDs. When a user waves in front of the lampshade 2... When a person passes by, the infrared human sensor 6 will detect the human body, while the photoresistor 7 will detect the ambient light. If there is no light, the LED bead 4 will activate and emit light, which will be focused by the lens built into the lampshade 2 and the reflector cup 5. If the ambient light is bright, the LED bead 4 will not activate to prevent the sensor light from turning on accidentally. Several components on the side of the control circuit board 3 include an 8205A battery protection IC, a 0805 sampling resistor (10mΩ), a TVS transient suppression diode, an STM8L151F3 ultra-low power MCU, and a TP4054 lithium battery charger. The components, such as the power management chip, 0805 packaged filter capacitor, Schottky diode, N-channel MOSFET, resettable fuse, voltage divider resistor, adjustable resistor, and delay capacitor, are existing technologies. Their specific structures and principles will not be detailed in this technical solution. For example, the 8205A battery protection IC on the side of the control circuit board 3 prevents overcharging and over-discharging, extending the lifespan of the coin cell battery 10. Another example is the STM8L151F3 ultra-low power MCU controlling the sensing logic. Other components include: LED bead 4, human infrared sensor 6, photoresistor 7, battery compartment 9, and coin cell battery 1. 0. The wiring harness 12 and the charging plug 15 are electrically connected to the control circuit board 3. The battery compartment 9 is installed inside the housing 1. The battery compartment 9 contains a button battery 10. The button battery 10 is model LIR24540. A battery cover 8 is connected to one side of the battery compartment 9. The top and bottom of the battery cover 8 are equipped with clips. The battery cover 8 is detachably connected to the housing 1. When the button battery 10 is aged and damaged, the battery cover 8 can be pried up and removed. Then the button battery 10 in the battery compartment 9 can be replaced. After replacing the button battery 10, the battery cover 8 can be put back into the housing 1.
[0039] See Figures 1-5In the above embodiment, a bracket 11 is connected to the lower side of the other side of the outer shell 1 via a damping pivot 13. Both the outer shell 1 and the bracket 11 are made of ABS material. The bracket 11 is rotatably connected to the outer shell 1 via the damping pivot 13. A wire harness 12 is connected between the bracket 11 and the outer shell 1. Cover plates 14 are attached between the outer shell 1, the bracket 11, and the damping pivot 13. A charging plug 15, which is a Type-C plug, is embedded in the top of the bracket 11. An elastic back clip 16, made of stainless steel, is connected to one side of the bracket 11. A magnetic plate 17 is connected to the upper side of one side of the elastic back clip 16. The magnetic plate 17 is rotatably connected to the elastic back clip 16. When it is needed for use, the user should select a Type-C interface charging head, with the Type-C interface parallel to the ground, so that the light from the sensor lamp can shine on the ground. If the wall socket plug is parallel to the ground, a charging head with a Type-C interface perpendicular to the ground should be used. With the horizontal wall socket, the light from the sensor lamp can shine on the ground. The light angle can be adjusted by rotating the damping hinge 13 on the bracket 11. Simultaneously, the elastic back clip 16, in conjunction with the charging plug 15, can also achieve a certain clamping effect, providing some protection against slippage. When needed for carrying and use, the charging plug 15 allows for easy combination of the sensor light with mobile devices such as phones, tablets, and power banks, eliminating the need to hold the mobile device and sensor light separately. The bracket 11 can rotate via the damping hinge 13, allowing adjustment of the sensor light's direction and angle. For example, it can be rotated to face the phone for better ground illumination or to face the front of the phone for supplemental lighting. During this process, the magnetic plate 17 can be attached to the back of the mobile device, increasing the sensor light's anti-slip effect. The elastic back clip 16 and the magnetic plate 17's rotatable connection allow the magnetic plate 17 to move within a certain range, adapting to mobile devices of different thicknesses. Even if the mobile device's outer shell 1 does not have the ability to be magnetically held, the elastic back clip 16, in conjunction with the charging plug 15, can still achieve a certain clamping effect, providing some protection against slippage.
[0040] Example 2:
[0041] Based on the above embodiment 1, the following settings are made to facilitate the disassembly and assembly of the elastic back clip 16 and the magnetic plate 17.
[0042] See Figure 1 In the above embodiment, a bolt is provided between the elastic back clip 16 and the bracket 11. The elastic back clip 16 and the bracket 11 are detached and connected. If the user does not want to use the elastic back clip 16 and the magnetic plate 17, the user can loosen the bolt between the elastic back clip 16 and the bracket 11 and remove it, or disassemble and replace the broken elastic back clip 16.
[0043] Example 3:
[0044] Based on the above embodiment 1, in order to increase the lifespan of the wire harness 12, the following settings are now implemented.
[0045] See Figure 1 In the above embodiment, the wire harness 12 is a silicone wire. The silicone wire has better flexibility and waterproof properties than the traditional rubber-insulated wire. Therefore, the wire harness 12 can withstand the bending caused by the frequent, repeated, and long-term rotation of the bracket 11 and the outer shell 1, and has a longer service life.
[0046] The implementation principle of this utility model is as follows: First, when a user waves or passes by in front of the lampshade 2, the human infrared sensor 6 will detect the human body, and at the same time the photoresistor 7 will detect the ambient light. If there is no light around, the lamp bead 4 will start to emit light, which will be focused by the lens and reflector cup 5 built into the lampshade 2. If the ambient light is bright, the lamp bead 4 will not start, thus avoiding the induction lamp from being turned on by mistake. The induction lamp is existing technology, and the specific structure and principle will not be described in detail in this technical solution. For example, the 8205A battery protection IC on the side of the control circuit board 3 prevents overcharging and over-discharging, thus extending the service life of the button battery 10. Another example is the STM8L151F3 ultra-low power MCU controlling the sensing logic.
[0047] When it is necessary to place and use it, the user should select a Type-C interface charging head, and the Type-C interface should be parallel to the ground so that the light of the sensor light can shine on the ground. If the wall socket plug is parallel to the ground, then use a charging head with the Type-C interface perpendicular to the ground. With the horizontal wall socket, the light of the sensor light can shine on the ground. The outer shell 1 can be rotated on the bracket 11 through the damping pivot 13 to adjust the light angle. At the same time, the elastic back clip 16, together with the charging plug 15, can also achieve a certain clamping effect and play a certain role in preventing it from falling off.
[0048] When needed for carrying and use, the charging plug 15 allows the sensor light to be easily combined with mobile devices such as mobile phones, tablets, and power banks, eliminating the need to hold the mobile device and the sensor light separately with both hands. The bracket 11 can rotate via the damping pivot 13, allowing the direction and angle of the sensor light to be adjusted. For example, it can be rotated to face the phone to illuminate the ground, or to face the front of the phone for supplemental lighting. During this process, the magnetic plate 17 can be attached to the back of the mobile device to increase the sensor light's anti-fall effect. Furthermore, the flexible back clip 16 and the magnetic plate 17 are rotatably connected, allowing the magnetic plate 17 to move within a certain range to adapt to mobile devices of different thicknesses. Even if the mobile device shell 1 does not have the ability to be magnetically attracted, the flexible back clip 16, in conjunction with the charging plug 15, can still achieve a certain clamping effect, providing a certain degree of anti-fall.
[0049] If the user does not want to use the elastic back clip 16 and the magnetic plate 17, the user can loosen the bolts between the elastic back clip 16 and the bracket 11 to remove them, or disassemble and replace the broken elastic back clip 16.
[0050] Meanwhile, this sensor light replaces the traditional cylindrical battery with a button battery 10, reducing the size of the sensor light and making it more portable; this sensor light is in a charging state when placed and carried, so it can be charged through the charging plug 15. The button battery 10 only needs to provide power for a short time when switching power sources to prevent the sensor light from turning off, that is, when the sensor light is transferred from the charging head to the mobile device or from the mobile device to the charging head.
[0051] When the button battery 10 is old and damaged, the battery cover 8 can be pried up and removed. Then, the button battery 10 in the battery compartment 9 can be replaced. After replacing the button battery 10, the battery cover 8 can be put back into the outer casing 1.
[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. An external sensor light for a mobile electronic device, comprising a housing (1), characterized in that: The outer shell (1) is provided with a lampshade (2) and a control circuit board (3) on one side, and the control circuit board (3) is provided with an LED (4), a reflector (5), a human infrared sensor (6), a photoresistor (7) and several components on one side. The outer shell (1) is provided with a battery compartment (9), and a button battery (10) is provided inside the battery compartment (9). A battery cover (8) is connected to one side of the battery compartment (9). A bracket (11) is connected to the lower side of the other side of the outer shell (1) through a damping shaft (13). A wire harness (12) is connected between the bracket (11) and the outer shell (1). A cover plate (14) is pasted between the outer shell (1), the bracket (11) and the damping shaft (13). A charging plug (15) is embedded on the top of the bracket (11). An elastic back clip (16) is connected to one side of the bracket (11), and a magnetic plate (17) is connected to the upper side of the elastic back clip (16).
2. The external sensor light for mobile electronic devices according to claim 1, characterized in that: The battery cover (8) is provided with buckles at the top and bottom, and the battery cover (8) is detachably connected to the outer shell (1).
3. The external sensor light for mobile electronic devices according to claim 1, characterized in that: The bracket (11) is rotatably connected to the outer shell (1) via a damping shaft (13).
4. The external sensor light for mobile electronic devices according to claim 1, characterized in that: The elastic back clip (16) is made of stainless steel.
5. The external sensor light for mobile electronic devices according to claim 4, characterized in that: The magnetic suction plate (17) is rotatably connected to the elastic back clip (16).
6. The external sensor light for mobile electronic devices according to claim 1, characterized in that: The control circuit board (3) is a double-layer circuit board, and several components on the side of the control circuit board (3) include an 8205A battery protection IC, a 0805 sampling resistor of 10mΩ, a TVS transient suppression diode, an STM8L151F3 ultra-low power MCU, a TP4054 lithium battery charging management chip, a 0805 packaged filter capacitor, a Schottky diode, an N-channel MOSFET, a resettable fuse, a voltage divider resistor, an adjustable resistor, and a delay capacitor. The LED bead (4), human infrared sensor (6), photoresistor (7), battery compartment (9), button battery (10), wiring harness (12), and charging plug (15) are all electrically connected to the control circuit board (3).
7. The external sensor light for mobile electronic devices according to claim 1, characterized in that: The outer shell (1) and the bracket (11) are both made of ABS material, and the lampshade (2) is made of PC material. A sealant is provided between the lampshade (2) and the outer shell (1).
8. The external sensor light for mobile electronic devices according to claim 6, characterized in that: The human infrared sensor (6) is model HC-SR501, the photoresistor (7) is model GL5528, the button battery (10) is model LIR24540, the charging plug (15) is a Type-C plug, and the lamp bead (4) is a 0805 packaged high-brightness LED.
9. The external sensor light for mobile electronic devices according to claim 5, characterized in that: A bolt is provided between the elastic back clip (16) and the bracket (11), and the elastic back clip (16) and the bracket (11) can be detached and connected.
10. The external sensor light for mobile electronic devices according to claim 6, characterized in that: The wire harness (12) is a silicone wire.