Multifunctional small night lamp based on human body induction and light adaptive adjustment
By using a control circuit that integrates human body sensing and light adaptive adjustment, combined with UV sterilization and wireless charging, the problem of traditional nightlights being difficult to turn on in dimly lit environments has been solved. This achieves multifunctional lighting and disinfection, improving convenience and adaptability.
Patent Information
- Application Number
- CN202520326329.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Traditional portable nightlights are difficult to turn on quickly in dimly lit environments, have limited functionality, cannot provide ambient lighting according to user needs, and lack disinfection and sterilization functions.
The control circuit uses a combination of human body sensor and light sensor to realize the automatic opening and closing of the lighting module, and switches between white light and yellow light through the light adjustment circuit. It is also equipped with a UV sterilization module and wireless charging function.
It automatically turns on the lighting in dimly lit environments, adjusts the light according to user needs, has a disinfection and sterilization function, and provides a convenient wireless charging method, thus improving the user experience.
Smart Images
Figure CN223885359U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of lighting devices, in particular to a multifunctional small night light based on human body sensing and light self-adaptive adjustment. BACKGROUND
[0002] The small night light is a commonly used lighting tool, which is used to provide soft light at night. It belongs to the category of small and energy-saving lamps, and is mainly used to provide convenience for children, the elderly or people who need light at night. The common form is a plug-in small night light, which can be directly plugged into the wall socket, convenient to use, and a rechargeable small night light, which has a built-in rechargeable battery, supports daytime charging and night use, and is convenient to carry. Most of the portable small night lights on the market are operated by switches, but in a dimly lit environment, it is difficult to quickly find the switch and turn on the small night light, which brings inconvenience to the user, and cannot provide environmental lighting and disinfection according to user needs, and the function is relatively single. CONTENT OF THE UTILITY MODEL
[0003] Therefore, the present application provides a multifunctional small night light based on human body sensing and light self-adaptive adjustment to solve the technical problem that the conventional portable small night light is difficult to quickly find the switch and turn on in a dimly lit environment, which brings inconvenience to the user, and cannot provide different environmental lighting according to user needs and lacks disinfection function, and the function is relatively single.
[0004] To achieve the above purpose, the utility model provides the following technical scheme: a multifunctional small night light based on human body sensing and light self-adaptive adjustment, comprising: a base, two groups of lighting modules arranged on the base, a human body sensor, and a control circuit arranged in the base.
[0005] Each group of lighting modules comprises a shell, a lamp holder fixedly installed on the base, and an LED lamp. The shell is connected to the base by magnetic attraction. The LED lamp is electrically connected to the control circuit through the connecting head on the lamp holder. The LED lamp includes white light and yellow light.
[0006] The control circuit comprises a signal processing circuit, a controller, a light sensor, and a light adjustment circuit. The input end of the signal processing circuit is electrically connected to the output end of the light sensor. The output end of the signal processing circuit is electrically connected to the signal input end of the controller. The input end of the light adjustment circuit is electrically connected to the signal output end of the controller.
[0007] Further, the light adjusting circuit comprises a relay module, a dimming chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a MOS tube Q1 and a MOS tube Q2, a KEY pin of the dimming chip U1 is electrically connected with the relay module, a control end of the relay module is electrically connected with a signal output end of the controller, an OUT1 pin of the dimming chip U1 is electrically connected with one end of the resistor R1, the other end of the resistor R1 is electrically connected with one end of the resistor R2 and a gate of the MOS tube Q1, the other end of the resistor R2 is grounded, a drain of the MOS tube Q1 is electrically connected with a negative pole of the first LED lamp through the resistor R3, a positive pole of the first LED lamp is connected with a power supply, an OUT2 pin of the dimming chip U1 is electrically connected with one end of the resistor R4, the other end of the resistor R4 is electrically connected with one end of the resistor R5 and a gate of the MOS tube Q2, the other end of the resistor R5 is grounded, a drain of the MOS tube Q2 is electrically connected with a negative pole of the second LED lamp through the resistor R6, a positive pole of the second LED lamp is connected with the power supply. The first LED lamp is a white light lamp, and the second LED lamp is a yellow light lamp. The light adjusting circuit can realize the functions of alternating illumination and common illumination of the white light lamp and the yellow light lamp.
[0008] Further, the light sensor adopts a photosensitive triode.
[0009] Further, the signal processing circuit comprises a resistor R7, a resistor R8, a resistor R9, a resistor R10, a capacitor C1 and a triode Q3, one end of the resistor R7 and one end of the photosensitive triode are both connected with a power supply, the other end of the resistor R7 is connected with an emitter of the triode Q3 and one end of the resistor R10, the other end of the resistor R10 is connected with a signal input end of the controller, a collector of the triode Q3 is grounded, a base of the triode Q3 is connected with one end of the capacitor C1 and one end of the resistor R8, the other end of the resistor R8 is connected with the other end of the photosensitive triode and one end of the resistor R9, the other end of the resistor R9 is grounded.
[0010] Further, the human body sensor adopts a pyroelectric infrared sensor, and a signal output end of the pyroelectric infrared sensor is electrically connected with a signal input end of the controller.
[0011] Further, the UV sterilization module comprises a lamp strip, a resistor R11, a resistor R12, a resistor R13, a MOS tube Q4, a timing chip U2 and a trigger button, a KEY pin of the dimming chip U1 is electrically connected with the controller, an OUT pin of the timing chip U2 is electrically connected with one end of the resistor R11, the other end of the resistor R11 is electrically connected with one end of the resistor R12 and a gate of the MOS tube Q4, the other end of the resistor R12 is grounded, a drain of the MOS tube Q4 is electrically connected with a negative pole of the lamp strip, a positive pole of the lamp strip is connected with the power supply through the resistor R13, and the lamp strip is embedded on the base.
[0012] Furthermore, the control circuit also includes a wireless charging module and a timing module. The wireless charging module includes a receiving coil L1, a voltage conversion chip U3, a capacitor C1, and a capacitor C2. The receiving coil L1 and the capacitor C1 are connected in parallel between the ACIN pin of the voltage conversion chip U3 and ground. One end of the capacitor C2 is connected to the OUT pin of the voltage conversion chip U3, and the other end of the capacitor C2 is grounded.
[0013] As can be seen from the above technical solution, the advantages of this utility model are:
[0014] This application can detect personnel information through a pyroelectric infrared sensor, thereby controlling the lighting module to turn on the lighting. At the same time, it can control the main and auxiliary lights to turn on and off according to the ambient light, achieving a more energy-saving effect. In addition, it can perform UV sterilization according to user needs, improving adaptability, and can also perform wireless charging, making the user experience better. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.
[0016] Figure 1 This is a schematic diagram of the composition structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the circuit structure of the light adjustment circuit of this utility model.
[0018] Figure 3 This is a schematic diagram of the circuit structure of the UV sterilization module of this utility model.
[0019] Figure 4 This is a schematic diagram of the circuit structure of the wireless charging module of this utility model.
[0020] Figure label:
[0021] Base-1, lighting module-2, human body sensor-3, and light strip-4. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and their descriptions are used to explain this application, but are not intended to limit it.
[0023] This utility model discloses a multifunctional night light based on human body sensing and adaptive light adjustment, which can control the lighting module by detecting whether a human body is moving, control the on / off state of the main and auxiliary lights according to the ambient light, and can also perform UV sterilization according to user needs. Figures 1 to 4As shown, the multifunctional small night light based on human body sensing and light self-adaptive adjustment comprises a base 1, two groups of lighting modules 2 arranged on the base 1, a human body sensor 3 and a control circuit arranged in the base 1, wherein the human body sensor 3 is arranged on the front face of the base 1, the back face of the base 1 is designed with a modular mounting interface, facilitating installation, each group of lighting modules 2 comprises a shell, a lamp holder fixedly installed on the base 1 and an LED lamp, the shell is connected with the base 1 in a magnetic attraction mode, convenient to install and replace the lamp beads, the LED lamp is electrically connected with the control circuit through the connecting head on the lamp holder, and the front face of the shell is provided with a heat dissipation opening. The control circuit comprises a signal processing circuit, a controller, a light sensor and a light adjusting circuit, the input end of the signal processing circuit is electrically connected with the output end of the light sensor, the output end of the signal processing circuit is electrically connected with the signal input end of the controller, and the input end of the light adjusting circuit is electrically connected with the signal output end of the controller. The controller adopts a model of STM32F103C8T6.
[0024] In the embodiment, the human presence signal and the indoor environment light intensity signal are taken as input signals, specifically, the human presence signal is collected by the human body sensor 3, and the light signal is detected by the photosensitive triode, i.e. the light sensor, when the indoor environment light intensity reaches the preset value, the light is not turned on even if there is a person, when the indoor environment light intensity is lower than the set threshold value and there is a person and the time range is exceeded, the light is allowed to be turned on, according to different set threshold values, the signal can be sent to the light adjusting circuit to control the white light and yellow light to illuminate, until the person leaves and the light is turned off after a certain time delay, the double-judgment control mode is adopted to intelligently control the illumination, and the energy-saving purpose can be achieved.
[0025] As shown in the drawings, Figure 2As shown in the figure, the light adjusting circuit includes a relay module, a dimming chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a MOS tube Q1 and a MOS tube Q2. The KEY pin of the dimming chip U1 is electrically connected with the relay module. The control end of the relay module is electrically connected with the signal output end of the controller. The OUT1 pin of the dimming chip U1 is electrically connected with one end of the resistor R1. The other end of the resistor R1 is electrically connected with one end of the resistor R2 and the gate of the MOS tube Q1. The other end of the resistor R2 is grounded. The drain of the MOS tube Q1 is electrically connected with the negative pole of the first LED lamp through the resistor R3. The positive pole of the first LED lamp is connected with the power supply. The OUT2 pin of the dimming chip U1 is electrically connected with one end of the resistor R4. The other end of the resistor R4 is electrically connected with one end of the resistor R5 and the gate of the MOS tube Q2. The other end of the resistor R5 is grounded. The drain of the MOS tube Q2 is electrically connected with the negative pole of the second LED lamp through the resistor R6. The positive pole of the second LED lamp is connected with the power supply. In the embodiment, the dimming chip U1 adopts the model LZ180910-29D4-9147. The controller controls the light adjusting circuit by controlling the on duration of the relay module to control the dimming chip U1 to output the LED lamp driving signal. The LED lamp includes two kinds of white light lamp and yellow light lamp. The first LED lamp is the white light lamp and the second LED lamp is the yellow light lamp. The light adjusting circuit can realize the functions of the white light lamp and the yellow light lamp to alternately illuminate and commonly illuminate.
[0026] In the embodiment, the light sensor adopts a photosensitive triode. As shown in the figure, Figure 2 The signal processing circuit includes a resistor R7, a resistor R8, a resistor R9, a resistor R10, a capacitor C1 and a triode Q3. One end of the resistor R7 and one end of the photosensitive triode are both connected with the power supply. The other end of the resistor R7 is connected with the emitter of the triode Q3 and one end of the resistor R10. The other end of the resistor R10 is connected with the signal input end of the controller. The collector of the triode Q3 is grounded. The base of the triode Q3 is connected with one end of the capacitor C1 and one end of the resistor R8. The other end of the resistor R8 is connected with the other end of the photosensitive triode and one end of the resistor R9. The other end of the resistor R9 is grounded. The light signal collected by the photosensitive triode is sent to the controller after amplification processing.
[0027] The human body sensor 3 adopts a pyroelectric infrared sensor. The signal output end of the pyroelectric infrared sensor is electrically connected with the signal input end of the controller. In the embodiment, the pyroelectric infrared sensor adopts the model HT-208.
[0028] As shown in the figure, Figure 3As shown, the control circuit further comprises a UV sterilization module, the UV sterilization module comprises a lamp strip 4, a resistor R11, a resistor R12, a resistor R13, a MOS tube Q4, a timing chip U2 and a trigger button, the KEY pin of the light adjusting chip U1 is electrically connected with the controller, the OUT pin of the timing chip U2 is electrically connected with one end of the resistor R11, the other end of the resistor R11 is electrically connected with one end of the resistor R12 and the gate of the MOS tube Q4, the other end of the resistor R12 is grounded, the drain of the MOS tube Q4 is electrically connected with the negative electrode of the lamp strip 4, the positive electrode of the lamp strip 4 is connected with the power supply through the resistor R13, the resistor R11, the resistor R12, the resistor R13 and the MOS tube Q4 form a MOS tube driving circuit of the lamp strip 4, and the lamp strip 4 is embedded on the base 1. The model of the timing chip U2 is FS8P150C, the trigger button is pressed to turn on the sterilization lamp strip 4, the OUT pin outputs high level for 5 minutes, after the timing ends, the sterilization lamp is turned off to return to the standby state, and the trigger is pressed again to start working again. The user can press the trigger button according to the own demand to disinfect the environment.
[0029] As shown in the figure, Figure 4 The control circuit further comprises a wireless charging module and a timing module, the wireless charging module comprises a receiving coil L1, a voltage conversion chip U3, a capacitor C1 and a capacitor C2, the receiving coil L1 and the capacitor C1 are connected in parallel between the ACIN pin of the voltage conversion chip U3 and the ground, one end of the capacitor C2 is connected with the OUT pin of the voltage conversion chip U3, and the other end of the capacitor C2 is grounded. The receiving coil L1 receives the wireless charging signal emitted by the transmitter, and outputs a power supply voltage after rectification and voltage conversion processing by the voltage conversion chip U3. The model of the voltage conversion chip U3 is LTC4126. The wireless charging makes the use process more convenient. The timing module is connected with the controller through a serial port, and the timing module comprises a timing chip, which is used for recording the lighting time and the personnel existing time.
[0030] The above only describes the preferred embodiments of the present application and is not used to limit the present application. The embodiments of the present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A multifunctional small night light based on human body induction and light self-adaptive adjustment, characterized in that, The application relates to a floor lamp, which comprises a base (1), two groups of lighting modules (2) arranged on the base (1), a human body sensor (3) and a control circuit arranged in the base (1). Each group of lighting modules (2) comprises a shell, a lamp support fixedly arranged on the base (1) and an LED lamp, the shell is connected with the base (1) in a magnetic attraction mode, and the LED lamp is electrically connected with the control circuit through a connecting head on the lamp support. The control circuit comprises a signal processing circuit, a controller, a light sensor and a light adjusting circuit, an input end of the signal processing circuit is electrically connected with an output end of the light sensor, an output end of the signal processing circuit is electrically connected with a signal input end of the controller, and an input end of the light adjusting circuit is electrically connected with a signal output end of the controller. The light adjusting circuit comprises a relay module, a dimming chip U1, resistors R1, R2, R3, R4, R5, R6, MOS tubes Q1 and Q2, a KEY pin of the dimming chip U1 is electrically connected with the relay module, a control end of the relay module is electrically connected with the signal output end of the controller, an OUT1 pin of the dimming chip U1 is electrically connected with one end of the resistor R1, the other end of the resistor R1 is electrically connected with one end of the resistor R2 and a gate of the MOS tube Q1, the other end of the resistor R2 is grounded, a drain of the MOS tube Q1 is electrically connected with a negative pole of a first LED lamp through the resistor R3, a positive pole of the first LED lamp is connected with a power supply, an OUT2 pin of the dimming chip U1 is electrically connected with one end of the resistor R4, the other end of the resistor R4 is electrically connected with one end of the resistor R5 and a gate of the MOS tube Q2, the other end of the resistor R5 is grounded, a drain of the MOS tube Q2 is electrically connected with a negative pole of a second LED lamp through the resistor R6, and a positive pole of the second LED lamp is connected with the power supply.
2. The multifunctional small night light based on human body sensing and light self-adaptive adjustment according to claim 1, characterized in that, The light sensor adopts a photosensitive triode. 3.The multifunctional small night light based on human body sensing and light self-adaptive adjustment according to claim 1, characterized in that, The signal processing circuit comprises resistors R7, R8, R9, R10, a capacitor C1 and a triode Q3, one end of the resistor R7 and one end of the photosensitive triode are both connected with a power supply, the other end of the resistor R7 is connected with an emitter of the triode Q3 and one end of the resistor R10, the other end of the resistor R10 is connected with a signal input end of the controller, a collector of the triode Q3 is grounded, a base of the triode Q3 is connected with one end of the capacitor C1 and one end of the resistor R8, the other end of the resistor R8 is connected with the other end of the photosensitive triode and one end of the resistor R9, and the other end of the resistor R9 is grounded.
4. The multifunctional small night light based on human body sensing and light self-adaptive adjustment according to claim 3, characterized in that, The human body sensor (3) adopts a pyroelectric infrared sensor, and a signal output end of the pyroelectric infrared sensor is electrically connected with a signal input end of the controller.
5. The multi-functional small night light based on human body sensing and light self-adaptive adjustment according to claim 1, characterized in that, 6. The multi-functional small night light based on human body sensing and light self-adaptive adjustment according to claim 2, characterized in that, The UV sterilization module comprises a lamp strip (4), a resistor R11, a resistor R12, a resistor R13, a MOS tube Q4, a timing chip U2 and a trigger button, a KEY pin of the light control chip U1 is electrically connected with the controller, an OUT pin of the timing chip U2 is electrically connected with one end of the resistor R11, the other end of the resistor R11 is electrically connected with one end of the resistor R12 and a gate of the MOS tube Q4, the other end of the resistor R12 is grounded, a drain of the MOS tube Q4 is electrically connected with a negative electrode of the lamp strip (4), a positive electrode of the lamp strip (4) is connected with a power supply through the resistor R13, and the lamp strip (4) is embedded on the base (1).
7. The multi-functional small night light based on human body sensing and light self-adaptive adjustment according to claim 1, characterized in that, The control circuit further comprises a wireless charging module and a timing module, the wireless charging module comprises a receiving coil L1, a voltage conversion chip U3, a capacitor C1 and a capacitor C2, the receiving coil L1 and the capacitor C1 are connected in parallel between an ACIN pin of the voltage conversion chip U3 and the ground, one end of the capacitor C2 is connected with an OUT pin of the voltage conversion chip U3, and the other end of the capacitor C2 is grounded.