Socket with indicating lamp brightness adjusting function
By adding a transistor and a photoresistor to the socket to adjust the brightness of the indicator light, the problem of excessively bright indicator lights affecting sleep is solved. This achieves low-brightness indicator lights at night and convenient USB port location, improving the user experience.
Patent Information
- Application Number
- CN202520599541.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The existing socket indicator lights are too bright, affecting nighttime sleep by causing glare and impacting sleep quality.
A transistor and a photoresistor are added to the socket. The brightness of the indicator light is adjusted by the change of light intensity of the photoresistor. It lights up normally under high brightness during the day and lights up at low power under low brightness at night. Combined with a delayed breathing module, the USB interface can be easily found in dark environments at night.
It features adjustable indicator light brightness that is not glaring at night, ensuring it won't disturb your sleep, while also making it easy to locate the USB port in dark environments.
Smart Images
Figure CN224021904U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of socket, specifically, relate to a socket with indication light brightness adjusting function. BACKGROUND
[0002] With the wide use of mobile devices requiring USB charging, the demand for charging multiple devices simultaneously in home and office scenarios has significantly increased. Traditional extension cords require multiple charger plugs to occupy the sockets, not only occupying space, but also causing a mess of wires. The emergence of USB extension cords directly solves this pain point, allowing users to charge devices without additional chargers, improving convenience. There is often a power indicator light on the USB extension cord that can observe whether the power supply has power. The power indicator light of the USB charging function of the extension cord can intuitively understand the power-on state of the extension cord and whether the USB interface is working normally, making it easy to quickly find and use in low-light environments. The power indicator light can reflect the internal wiring connection and current on-off situation. If the indicator light is not bright or flickering, there may be poor contact, line failure, etc. The user is prompted to check in time to avoid safety hazards.
[0003] During sleep, the human body is sensitive to light, and the light of the power indicator light may make sleep shallower, easily wake up, destroy the continuity of sleep, and reduce sleep quality. Bright light will stimulate the eyes, making the brain receive a wake-up signal, making it difficult to enter a relaxed state and prolonging the time to fall asleep. The light emitted by the power indicator light on the extension cord will be difficult to ignore in the dark, thereby affecting sleep. SUMMARY
[0004] The technical problem to be solved by the utility model is that the brightness of the socket indicator light in the prior art is too high, which affects night sleep. To overcome the defects of the prior art, the utility model provides a socket with an indicator light brightness adjusting function.
[0005] The utility model relates to a socket with indication light brightness adjusting function, including AC converts DC module, USB interface module and photosensitive module, the input of AC converts DC module and fire line and zero line electricity are connected, the output of AC converts DC module and the input of USB interface module electricity are connected;
[0006] The photosensitive module includes a photosensitive resistor RG1, a resistor R18, a triode Q1 and an indicator light LED1, the first end of the photosensitive resistor RG1 and the collector of the triode Q1 are electrically connected with the output of the USB interface module, the second end of the photosensitive resistor RG1 is electrically connected with the base of the triode Q1, the emitter of the triode Q1 is electrically connected with the positive electrode of the indicator light LED1 through the resistor R18, and the negative electrode of the indicator light LED1 is grounded.
[0007] Compared with the prior art, the socket with the indicator light brightness adjusting function has the following advantages: a triode and a photoresistor are additionally arranged on the indicator light, the indicator light is normally lighted at high brightness in the daytime and is lighted at low power at low brightness at night, and the socket does not be dazzling and does not affect sleep at night.
[0008] In a possible implementation, a delay breathing module is further included, and the delay breathing module includes a timer chip U5, a resistor R19, a resistor R20, an electrolytic capacitor EC1, a triode Q2 and a breathing lamp LED2.
[0009] The power supply port and the reset port of the timer chip U5 are electrically connected with the output end of the USB interface module, the trigger port of the timer chip U5 is electrically connected with the threshold port of the timer chip U5, the base of the triode Q2 and the positive electrode of the electrolytic capacitor EC1 respectively, the negative electrode of the electrolytic capacitor EC1 is grounded, the output port of the timer is electrically connected with the trigger port of the timer chip U5 through the resistor R19, the reset port of the timer chip U5 is electrically connected with the collector of the triode Q5, the emitter of the triode Q5 is electrically connected with the positive electrode of the breathing lamp LED2 through the resistor R20, and the negative electrode of the breathing lamp LED2 is grounded.
[0010] Compared with the prior art, the breathing lamp in the delay breathing module is convenient to find the position of the USB interface in the dark environment at night.
[0011] In a possible implementation, the AC-DC module includes a common mode inductor LF1, a bridge rectifier BD1, a rectification filtering module, a transformer T1 and a voltage stabilizer U2.
[0012] The first input end of the common mode inductor LF1 is electrically connected with the live wire, the first output end of the common mode inductor LF1 is electrically connected with the AC first input end of the bridge rectifier BD1, the second input end of the common mode inductor LF1 is electrically connected with the zero wire, the second output end of the common mode inductor LF1 is electrically connected with the AC second input end of the bridge rectifier BD1, the DC output end of the bridge rectifier BD1 is electrically connected with the input end of the rectification filtering module, the output end of the rectification filtering module is electrically connected with the primary side of the transformer T1, the secondary side of the transformer T1 is electrically connected with the input end of the voltage stabilizer U2, and the output end of the voltage stabilizer U2 is electrically connected with the input end of the USB interface module.
[0013] Compared with the prior art, the common mode inductor LF1, the bridge rectifier BD1, the rectification filtering module, the transformer T1 and the voltage stabilizer U2 are used to convert the AC power on the live wire and the zero wire into stable DC power to stably supply power to the USB interface module.
[0014] In a possible implementation, the rectification and filtering module comprises an inductor L1, an inductor L2, a resistor R1, an electrolytic capacitor EC1, an electrolytic capacitor EC2 and an electrolytic capacitor EC3.
[0015] The direct current positive output end of the bridge rectifier BD1 is electrically connected with the first end of the inductor L1, the second end of the inductor L1 is electrically connected with the primary side of the transformer T1, the direct current negative output end of the bridge rectifier BD1 is electrically connected with the first end of the inductor L2, the second end of the inductor L2 is grounded, the resistor R1 is connected in parallel with the inductor L1, the first end of the inductor L1 is electrically connected with the positive pole of the electrolytic capacitor EC1, the negative pole of the electrolytic capacitor EC1 is electrically connected with the first end of the inductor L2, the second end of the inductor L1 is electrically connected with the positive pole of the electrolytic capacitor EC2, the negative pole of the electrolytic capacitor EC2 is electrically connected with the second end of the inductor L2, the second end of the inductor L1 is electrically connected with the positive pole of the electrolytic capacitor EC3, and the negative pole of the electrolytic capacitor EC3 is grounded.
[0016] Compared with the prior art, the above technical solution can ensure that the voltage input to the transformer T1 is periodic and stable.
[0017] In a possible implementation, the rectification and filtering module is electrically connected with a spike pulse absorption circuit between the rectification and filtering module and the primary side of the transformer T1, and the spike pulse absorption circuit comprises a resistor R4, a resistor R5, a capacitor C2 and a diode D1.
[0018] The output end of the rectification and filtering circuit is electrically connected with one end of the primary side of the transformer T1, the other end of the primary side of the transformer T1 is electrically connected with the positive pole of the diode D1, the negative pole of the diode D1 is in series with the resistor R5 and the resistor R4, and the resistor R5 and the resistor R4 are electrically connected with the output end of the rectification and filtering circuit, and the capacitor C2 is connected in parallel with the resistor R4.
[0019] Compared with the prior art, the spike pulse absorption circuit actively suppresses high-frequency interference by using the diode D1 to absorb the spike current in the loop and reduce the rising rate of the spike current, so that the radiation in electromagnetic interference can be solved, the stability of the entire circuit is ensured, and a stable voltage is output.
[0020] In a possible implementation, the primary side of the transformer T1 is further electrically connected with a feedback circuit for detecting the voltage of the input end of the transformer.
[0021] Compared with the prior art, the feedback loop is used to identify whether the voltage of the primary side of the transformer circuit reaches a preset voltage, and then the voltage can be adjusted.
[0022] In a possible implementation, the first input end of the common-mode inductor LF1 is electrically connected with a fuse F1 between the live wire.
[0023] Compared with the prior art, the fuse effectively limits and prevents the excessive current from burning out.
[0024] In a possible implementation, a pressure-sensitive resistor RV1 is electrically connected between the first input end and the second input end of the common-mode inductor LF1.
[0025] Compared with the prior art, the pressure-sensitive resistor can realize overvoltage protection and lightning surge protection. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 The utility model relates to a circuit diagram of a socket with an indicator light brightness adjusting function. DETAILED DESCRIPTION
[0027] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.
[0028] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0029] The present application will be further described in detail below in combination with the drawings and specific embodiments.
[0030] Referring to Figure 1 As shown in the drawings, the embodiments of the present application disclose a socket with an indicator light brightness adjusting function, which comprises an AC-DC module, a USB interface module and a photosensitive module, the input end of the AC-DC module is electrically connected with the live wire and the neutral wire, the output end of the AC-DC module is electrically connected with the input end of the USB interface module;
[0031] The photosensitive module comprises a photosensitive resistor RG1, a resistor R18, a triode Q1 and an indicator light LED1, the first end of the photosensitive resistor RG1 and the collector of the triode Q1 are both electrically connected with the output end of the USB interface module, the second end of the photosensitive resistor RG1 is electrically connected with the base of the triode Q1, the emitter of the triode Q1 is electrically connected with the positive pole of the indicator light LED1 through the resistor R18, and the negative pole of the indicator light LED1 is grounded.
[0032] The triode Q1 and the photoresistor RG1 are added to the indicating lamp, the amplification of the triode Q1 is controlled by the characteristic that the resistance of the photoresistor RG1 changes with the change of the brightness of the ambient light, the brightness of the indicating lamp is controlled, the indicating lamp LED1 is normally lighted at high brightness in the daytime and is lighted at low power at low brightness at night, the indicating lamp LED1 is not dazzling at night and does not affect sleep.
[0033] When the ambient light is enhanced, that is, in the daytime, the resistance of the photoresistor RG1 is reduced, the base voltage of the triode Q1 is increased, the triode Q1 is turned on at this time, the current flowing through the indicating lamp LED1 is increased, the brightness of the indicating lamp LED1 is enhanced, and the indicating lamp reflection can be seen in the brighter environment. When the ambient light is weakened, that is, at night, the resistance of the photoresistor RG1 is increased, the base voltage of the triode Q1 is reduced, the triode Q1 is cut off at this time, the current flowing through the indicating lamp LED1 is reduced, the brightness of the indicating lamp LED1 is reduced, and the indicating lamp LED1 is not dazzling in the weak light environment.
[0034] The user can judge whether the USB interface module of the socket is in the normal working state through the indicating lamp LED1. The light of the indicating lamp LED1 can be normally seen in the brighter environment, and the indicating lamp LED1 is also dark in the darker environment, which does not cause light pollution and affect the sleep of the user.
[0035] In the actual application process, the overall brightness of the indicating lamp LED1 can be adjusted by adjusting the resistor R18.
[0036] In the embodiment, the USB interface module includes two USB drive chips, and each USB drive chip can drive two USB interfaces to output power.
[0037] The socket with the indicating lamp brightness adjusting function in the embodiment further includes a delay breathing module, the delay breathing module includes a timer chip U5, resistors R19 and R20, an electrolytic capacitor EC1, a triode Q2 and a breathing lamp LED2.
[0038] The supply port and the reset port of the timer chip U5 are electrically connected with the output end of the USB interface module, the trigger port of the timer chip U5 is electrically connected with the threshold port of the timer chip U5, the base of the triode Q2 and the positive electrode of the electrolytic capacitor EC1, the negative electrode of the electrolytic capacitor EC1 is grounded, the output port of the timer chip U5 is electrically connected with the trigger port of the timer chip U5 through the resistor R19, the reset port of the timer chip U5 is electrically connected with the collector of the triode Q5, the emitter of the triode Q5 is electrically connected with the positive electrode of the breathing lamp LED2 through the resistor R20, and the negative electrode of the breathing lamp LED2 is grounded.
[0039] The breathing light in the delay breathing module is convenient for finding the position of the USB interface in the dark environment at night.
[0040] In the embodiment, the timer chip U5 is a NE555 timer chip, and the breathing light LED2 is always weakly breathing. In a bright environment, the breathing process cannot be seen, and only in a dark environment, that is, when the brightness of LED1 is very low or off, the breathing light LED2 can be seen.
[0041] Specifically, when the power is first turned on, the 2nd and 3rd pins of U5 are low, the 6th pin outputs a high level, and at the same time charges the capacitor EC7, the 2nd and 3rd pins are also high, and the LED light is bright; when the 2nd and 3rd pins are high, the 6th pin outputs a low level, and the EC7 capacitor is discharged, and the LED light is slowly extinguished. Repeat the cycle to achieve the breathing effect.
[0042] In actual application, by adjusting the resistance value of R20, the overall brightness of the breathing light LED2 is reduced; by adjusting the capacitance value of the electrolytic capacitor EC7, the breathing speed of the breathing light LED2 is slowed down.
[0043] In the embodiment, the AC-DC module includes a common-mode inductor LF1, a bridge rectifier BD1, a rectifier filter module, a transformer T1, and a voltage stabilizer U2.
[0044] The first input end of the common-mode inductor LF1 is connected with the live wire, the first output end of the common-mode inductor LF1 is connected with the AC first input end of the bridge rectifier BD1, the second input end of the common-mode inductor LF1 is connected with the zero line, and the second output end of the common-mode inductor LF1 is connected with the AC second input end of the bridge rectifier BD1; the DC output end of the bridge rectifier BD1 is connected with the input end of the rectifier filter module, the output end of the rectifier filter module is connected with the primary side of the transformer T1, the secondary side of the transformer T1 is connected with the input end of the voltage stabilizer U2, and the output end of the voltage stabilizer U2 is connected with the input end of the USB interface module.
[0045] Through the common-mode inductor LF1, the bridge rectifier BD1, the rectifier filter module, the transformer T1, and the voltage stabilizer U2, the AC power on the live wire and the zero line is converted into stable DC power to stably power the USB interface module.
[0046] The rectifier filter module includes an inductor L1, an inductor L2, a resistor R1, an electrolytic capacitor EC1, an electrolytic capacitor EC2, and an electrolytic capacitor EC3.
[0047] The bridge rectifier BD1 is electrically connected with the first end of the inductor L1, the second end of the inductor L1 is electrically connected with the primary side of the transformer T1, the bridge rectifier BD1 is electrically connected with the first end of the inductor L2, the second end of the inductor L2 is grounded, the resistor R1 is connected in parallel with the inductor L1, the first end of the inductor L1 is electrically connected with the positive electrode of the electrolytic capacitor EC1, the negative electrode of the electrolytic capacitor EC1 is electrically connected with the first end of the inductor L2, the second end of the inductor L1 is electrically connected with the positive electrode of the electrolytic capacitor EC2, the negative electrode of the electrolytic capacitor EC2 is electrically connected with the second end of the inductor L2, the second end of the inductor L1 is electrically connected with the positive electrode of the electrolytic capacitor EC3, and the negative electrode of the electrolytic capacitor EC3 is grounded.
[0048] The above technical solution can ensure that the voltage input to the transformer T1 is periodic and stable.
[0049] In the embodiment, a sharp pulse absorption circuit is electrically connected between the rectification and filtering module and the primary side of the transformer T1, and the sharp pulse absorption circuit comprises a resistor R4, a resistor R5, a capacitor C2 and a diode D1.
[0050] The output end of the rectification and filtering circuit is electrically connected with one end of the primary side of the transformer T1, the other end of the primary side of the transformer T1 is electrically connected with the positive electrode of the diode D1, the negative electrode of the diode D1 is in series with the resistor R5 and the resistor R4 and is electrically connected with the output end of the rectification and filtering circuit, and the capacitor C2 is connected in parallel with the resistor R4.
[0051] Through the sharp pulse absorption circuit, the diode D1 actively suppresses high-frequency interference to absorb the sharp current in the circuit and reduce the rising rate of the sharp current, so that the radiation in electromagnetic interference can be solved, the stability of the entire circuit is ensured, and a stable voltage is output.
[0052] The primary side of the transformer T1 is also electrically connected with a feedback circuit for detecting the voltage of the input end of the transformer. The voltage of the primary side of the transformer circuit is identified through the feedback loop to determine whether it reaches the preset voltage, and then it can be adjusted.
[0053] The first input end of the common-mode inductor LF1 is electrically connected with a fuse F1 between the live wire. The fuse effectively limits the current to prevent burning out.
[0054] The first input end and the second input end of the common-mode inductor LF1 are electrically connected with a voltage-dependent resistor RV1. The voltage-dependent resistor can realize overvoltage protection and lightning surge protection.
[0055] In the description of the embodiments of the present application, it should be noted that the terms "inner", "outer", and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.
[0056] In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "in this embodiment", "specific example", or "some examples" and the like means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, different embodiments or examples described in the specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.
[0057] The above is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A socket with an indicator light brightness adjustment function, characterized in that, It includes an AC-to-DC module, a USB interface module, and a photosensitive module. The input terminal of the AC-to-DC module is electrically connected to the live wire and the neutral wire, and the output terminal of the AC-to-DC module is electrically connected to the input terminal of the USB interface module. The photosensitive module includes a photoresistor RG1, a resistor R18, a transistor Q1, and an indicator LED1. The first terminal of the photoresistor RG1 and the collector of the transistor Q1 are both electrically connected to the output terminal of the USB interface module. The second terminal of the photoresistor RG1 is electrically connected to the base of the transistor Q1. The emitter of the transistor Q1 is electrically connected to the positive terminal of the indicator LED1 through the resistor R18. The negative terminal of the indicator LED1 is grounded.
2. The socket with indicator light brightness adjustment function according to claim 1, characterized in that, It also includes a delayed breathing module, which includes a timer chip U5, resistor R19, resistor R20, electrolytic capacitor EC1, transistor Q2 and breathing light LED2; The power supply port and reset port of the timer chip U5 are both electrically connected to the output terminal of the USB interface module. The trigger port of the timer chip U5 is electrically connected to the threshold port of the timer chip U5, the base of the transistor Q2, and the positive terminal of the electrolytic capacitor EC1. The negative terminal of the electrolytic capacitor EC1 is grounded. The output port of the timer chip U5 is electrically connected to the trigger port of the timer chip U5 through resistor R19. The reset port of the timer chip U5 is electrically connected to the collector of the transistor Q5. The emitter of the transistor Q5 is electrically connected to the positive terminal of the breathing light LED2 through resistor R20. The negative terminal of the breathing light LED2 is grounded.
3. The socket with indicator light brightness adjustment function according to claim 1, characterized in that, The AC-to-DC module includes a common-mode inductor LF1, a bridge rectifier BD1, a rectifier filter module, a transformer T1, and a voltage regulator U2. The first input terminal of the common mode inductor LF1 is electrically connected to the live wire, the first output terminal of the common mode inductor LF1 is electrically connected to the first AC input terminal of the bridge rectifier BD1, the second input terminal of the common mode inductor LF1 is electrically connected to the neutral wire, and the second output terminal of the common mode inductor LF1 is electrically connected to the second AC input terminal of the bridge rectifier BD1. The DC output terminal of the bridge rectifier BD1 is electrically connected to the input terminal of the rectifier and filter module. The output terminal of the rectifier and filter module is electrically connected to the primary side of the transformer T1. The secondary side of the transformer T1 is electrically connected to the input terminal of the voltage regulator U2. The output terminal of the voltage regulator U2 is electrically connected to the input terminal of the USB interface module.
4. The socket with indicator light brightness adjustment function according to claim 3, characterized in that, The rectifier and filter module includes inductor L1, inductor L2, resistor R1, electrolytic capacitor EC1, electrolytic capacitor EC2 and electrolytic capacitor EC3; The positive DC output terminal of the bridge rectifier BD1 is electrically connected to the first terminal of inductor L1, the second terminal of inductor L1 is electrically connected to the primary side of transformer T1, the negative DC output terminal of the bridge rectifier BD1 is electrically connected to the first terminal of inductor L2, the second terminal of inductor L2 is grounded, the resistor R1 is connected in parallel across inductor L1, the first terminal of inductor L1 is electrically connected to the positive terminal of electrolytic capacitor EC1, the negative terminal of electrolytic capacitor EC1 is electrically connected to the first terminal of inductor L2, the second terminal of inductor L1 is electrically connected to the positive terminal of electrolytic capacitor EC2, the negative terminal of electrolytic capacitor EC2 is electrically connected to the second terminal of inductor L2, the second terminal of inductor L1 is electrically connected to the positive terminal of electrolytic capacitor EC3, and the negative terminal of electrolytic capacitor EC3 is grounded.
5. The socket with indicator light brightness adjustment function according to claim 3, characterized in that, A spike pulse absorption circuit is electrically connected between the rectifier filter module and the primary side of transformer T1. The spike pulse absorption circuit includes resistor R4, resistor R5, capacitor C2 and diode D1. The output terminal of the rectifier filter module is electrically connected to one end of the primary side of the transformer T1, and the other end of the primary side of the transformer T1 is electrically connected to the positive terminal of the diode D1. The negative terminal of the diode D1 is connected in series with resistor R5 and resistor R4 and electrically connected to the output terminal of the rectifier filter module. The capacitor C2 is connected in parallel across resistor R4.
6. The socket with indicator light brightness adjustment function according to claim 3, characterized in that, The primary side of the transformer T1 is also electrically connected to a feedback circuit for detecting the input voltage of the transformer.
7. The socket with indicator light brightness adjustment function according to claim 3, characterized in that, A fuse F1 is electrically connected between the first input terminal of the common mode inductor LF1 and the live wire.
8. The socket with indicator light brightness adjustment function according to claim 3, characterized in that, A varistor RV1 is electrically connected between the first and second input terminals of the common-mode inductor LF1.