A circuit structure for increasing standby days of a solar lamp and automatically powering on

Abstract

This invention discloses a circuit structure that increases the standby days of solar lamps and enables automatic power-on. The circuit includes a circuit board with a power-saving module. The circuit board comprises a photovoltaic panel, a connector, resistors R6 and R14, transistor Q3, resistor R15, capacitor C11, diode D8, resistors R5 and R7, chip U4, capacitor C2, resistors R4 and R3, chip U3, diode D9, chip U1, capacitor C8, a positive terminal of a battery pack, resistors R1 and R2, diode D3, inductor L1, electrolytic capacitor E1, capacitor C1, chip U2, capacitor C3, an LED light panel, and electrolytic capacitor E2. One end of the photovoltaic panel is connected to one end of the connector, and the other end of the connector is connected to one end of diode D4. This low-power, automatically powered circuit structure requires no manual intervention for power-off or power-on. The circuit board automatically powers on, detects the photovoltaic signal, and automatically shuts off. It is suitable for solar-powered lamps and has high practicality.

Description

Technical Field

[0001] This invention relates to the field of solar lamp circuit technology, specifically a circuit structure that increases the standby days of a solar lamp and enables it to automatically power on. Background Technology

[0002] Solar lights generate electricity using solar energy, eliminating the need for traditional coal, oil, or other fossil fuels. Therefore, they do not produce carbon dioxide or other harmful substances, meeting environmental protection requirements. Furthermore, they do not consume grid power, significantly reducing electricity costs. Solar lights require no power lines and can be installed wherever sunlight can reach, making installation very convenient. Users don't need to worry about power lines being obstructed. In addition, solar lights have no mechanical parts requiring maintenance; only regular cleaning and battery checks are needed. Solar lights can generally last for more than five years without frequent battery replacements or maintenance, making them more economical and practical. The operating and maintenance costs of solar lights are low; aside from a small amount of electricity charged during cloudy or rainy days when switching to grid power, the operating cost is almost zero. The entire system is automatically controlled, requiring no human intervention.

[0003] Solar-powered lights use LiFePO4 and lithium iron phosphate batteries as energy storage media. During the day, solar photovoltaic panels charge the battery pack, and at night, the lights automatically turn on by discharging the batteries. Charging and discharging are controlled by a solar controller using MPPT or PWM. The controller is equipped with a functional module, 2.4G Bluetooth communication, radar microwave sensing, infrared human body sensing, and other functional modules. When these modules are combined, the static power consumption is 0.2-0.5W. For a 25.6V 30AH = 768Wh battery with a static power consumption of 0.2W, the standby time is: 768Wh / 0.2W = 3840H = 160 days.

[0004] However, traditional solar lighting circuits have the following drawbacks:

[0005] After long-distance sea or land transportation, the battery packs are often nearly depleted by the time they reach the customer, rendering the lights unusable for testing and resulting in a poor customer experience. The industry standard practice is to connect the solar control panel to an external switch via a lead wire or a magnetic switch for power on / off. Both methods require manual intervention to activate the solar controller. For the lead wire method, the red wire is manually cut to disconnect the circuit, and then short-circuited during operation. For the magnetic switch method, the magnet is manually removed to energize the circuit. Summary of the Invention

[0006] The purpose of this invention is to provide a circuit structure that increases the standby days of solar lamps and enables automatic power-on, thereby solving the problem mentioned in the background art where, after long-term sea or land transportation, the battery pack is almost completely depleted by the time it reaches the customer, rendering the lamp unusable for testing and resulting in a poor customer experience. The industry practice typically involves connecting the solar control panel to an external switch via a lead wire for power-on / off, or using a magnetic switch. Both methods require manual intervention to enable the solar controller. Specifically, the lead wire method involves manually cutting the red wire to disconnect the circuit, and then manually shorting it during operation. Similarly, the magnetic switch method involves manually removing the magnet to power on the circuit.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a circuit structure for increasing the standby days of solar lamps and enabling automatic power-on, comprising a circuit board, wherein the circuit board is equipped with a power-saving module, the circuit board comprising a photovoltaic panel, a connector, resistors R6 and R14, transistor Q3, resistor R15, capacitor C11, diode D8, resistors R5 and R7, chip U4, capacitor C2, resistors R4 and R3, chip U3, diode D9, chip U1, capacitor C8, positive terminal of a battery pack, resistors R1 and R2, diode D3, inductor L1, electrolytic capacitor E1, capacitor C1, and chip U1. 2. Capacitor C3, LED light panel, and electrolytic capacitor E2. One end of the photovoltaic panel is connected to one end of the connector. The other end of the connector is connected to one end of diode D4. The other end of diode D4 is connected to one end of resistor R6. The other end of resistor R6 is connected to one end of resistor R14. The other end of resistor R14 is connected to one end of resistor R15 and the base of transistor Q3. The collector of transistor Q3 is connected to one end of capacitor C11 and one end of diode D8. The other end of diode D8 is connected to one end of resistor R5. The other end of resistor R5 is connected to... One end of resistor R7 is connected to pin 4 of chip U4. The connection point between resistor R5 and pin 4 of chip U4 is connected to one end of capacitor C2. The other end of resistor R7 is connected to pin 5 of chip U4. Pin 3 of chip U4 is connected to one end of resistor R4. The other end of resistor R4 is connected to one end of resistor R3 and pin 14 of chip U3. Pin 12 of chip U3 is connected to one end of diode D9. The other end of diode D9 is connected to pin 4 of chip U1. Pin 9 of chip U3 is connected to one end of capacitor C8. Pin 1 of chip U1 is connected to the battery pack's front-mounted... The chip U1 is connected to the LED board. Pin 3 of the chip U1 is connected to one end of resistor R1 and one end of resistor R2, respectively. Pin 2 of the chip U1 is connected to one end of diode D3 and one end of inductor L1, respectively. The other end of inductor L1 is connected to the other end of resistor R2 and one end of electrolytic capacitor E1, respectively. The connection between inductor L1 and electrolytic capacitor E1 is connected to one end of capacitor C1 and pin 2 of chip U2, respectively. Pin 3 of the chip U2 is connected to one end of capacitor C3 and one end of electrolytic capacitor E2, respectively. Pins 6 and 7 of the chip U4 are both connected to the side of the LED board that is directly opposite to it.

[0008] As a preferred embodiment of the present invention, the power-saving module includes a transistor Q3, a diode D8, a diode D9, and a resistor R5. The collector of the transistor Q3 is connected to one end of the diode D8, and the other end of the diode D8 is connected to one end of the diode D9 and one end of the resistor R5, respectively. The emitter of the transistor Q3 is grounded.

[0009] As a preferred embodiment of the present invention, the other end of resistor R15, the emitter of transistor Q3, the other end of capacitor C11, the other end of photovoltaic panel, the other end of capacitor C2, the other end of resistor R3, the other end of capacitor C8, pin 7 of chip U3, pin 5 of chip U1, pin 6 of chip U1, pin 7 of chip U1, pin 8 of chip U1, pin 9 of chip U1, pin 10 of chip U1, the other end of diode D3, the other end of electrolytic capacitor E1, the other end of capacitor C1, pin 1 of chip U2, the other end of capacitor C3, pin 0 of chip U4, and the other end of electrolytic capacitor E2 are all grounded.

[0010] As a preferred embodiment of the present invention, a solar energy detection port and an automatic power-on control port are provided at the connection between the diode D8 and the capacitor C11.

[0011] In a preferred embodiment of the present invention, the three pins of the chip U2 are respectively connected to an external module and a Bluetooth module. The Bluetooth module includes a chip U8, resistors R85 and R84, test point T40, test point T42, diode D3, diode D4, capacitors C31, C13, C14, C2, resistors R43 and R16, capacitors C18, C29, C28, C55, and C25. Pin 30 of the chip U8 is connected to one end of resistor R85, pin 29 of the chip U8 is connected to one end of resistor R84, pin 25 of the chip U8 is connected to one end of test point T42, and pin 24 of the chip U8 is connected to one end of test point T40. The other end of test point T42 is connected to... The other end of T40 and pin 20 of chip U8 are both connected to one end of capacitor C31. Pin 19 of chip U8 is connected to one end of resistor R43, one end of capacitor C14, one end of capacitor C2, and one end of resistor R16. The other end of resistor R43 is connected to one end of capacitor C13. Pin 10 of chip U8 is connected to one end of capacitor C25. Pin 8 of chip U8 is connected to one end of capacitor C28 and one end of capacitor C29. Pin 8 of chip U8 is connected to one end of capacitor C18. The other ends of capacitor C31, pin 22 of chip U8, capacitor C13, capacitor C14, capacitor C2, capacitor C28, capacitor C29, and capacitor C18 are all grounded.

[0012] As a preferred embodiment of the present invention, pin 18 of the chip U3 is connected to a 2.4G wireless communication module. The 2.4G wireless communication module includes a relay J1, resistors R1 and R2, a pressure switch PB1, a capacitor C1, resistors R3, capacitor C3, and capacitor C2. Pin 10 of the relay J1 is connected to one end of resistor R2 and one end of capacitor C1. The connection between resistor R2 and capacitor C1 is connected to one end of pressure switch PB1. Pin 6 of the relay J1 is connected to one end of resistor R3. Pin 1 of the relay J1 is connected to one end of capacitor C3 and one end of capacitor C2. Pin 19 of the relay J1 is connected to one end of resistor R1. Pins 15 and 13 of the relay J1, the other end of pressure switch PB1, the other end of capacitor C1, the other end of resistor R3, pin 2 of the relay J1, the other end of capacitor C3, and the other end of capacitor C2 are all grounded.

[0013] As a preferred embodiment of the present invention, pin 17 of the chip U3 is connected to an IR remote control module. The IR remote control module includes an infrared transmitter and a resistor R10. Pin 1 of the infrared transmitter is connected to one end of the resistor R10, and pin 1 of the infrared transmitter is grounded.

[0014] As a preferred embodiment of the present invention, a radar module is connected to pin 16 of the chip U3.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the low power consumption and automatic power-on circuit structure does not require human intervention to turn the power on and off. The circuit board automatically powers on, detects photovoltaic signals, and automatically shuts down, making it suitable for solar-powered lamps and highly practical. Attached Figure Description

[0016] Figure 1 This is a circuit diagram of the circuit board of the present invention;

[0017] Figure 2 This is a circuit diagram of the power-saving module of the present invention;

[0018] Figure 3 This is a circuit diagram of the Bluetooth module of the present invention;

[0019] Figure 4 This is a circuit diagram of the 2.4G wireless communication module of the present invention;

[0020] Figure 5 This is a circuit diagram of the IR remote control module of the present invention. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-5 This invention provides a circuit structure for increasing the standby days of solar lamps and enabling automatic power-on. The circuit includes a circuit board with a power-saving module. The circuit board comprises a photovoltaic panel, a connector, resistors R6 and R14, transistor Q3, resistor R15, capacitor C11, diode D8, resistors R5 and R7, chip U4, capacitor C2, resistors R4 and R3, chip U3, diode D9, chip U1, capacitor C8, positive terminal of a battery pack, resistors R1 and R2, diode D3, inductor L1, electrolytic capacitor E1, capacitor C1, and chip U2. The components include capacitor C3, LED light panel, and electrolytic capacitor E2. One end of the photovoltaic panel is connected to one end of the connector, the other end of the connector is connected to one end of diode D4, the other end of diode D4 is connected to one end of resistor R6, the other end of resistor R6 is connected to one end of resistor R14, the other end of resistor R14 is connected to one end of resistor R15 and the base of transistor Q3, the collector of transistor Q3 is connected to one end of capacitor C11 and one end of diode D8, the other end of diode D8 is connected to one end of resistor R5, and the other end of resistor R... One end of resistor R7 is connected to pin 4 of chip U4. The connection point between resistor R5 and pin 4 of chip U4 is connected to one end of capacitor C2. The other end of resistor R7 is connected to pin 5 of chip U4. Pin 3 of chip U4 is connected to one end of resistor R4. The other end of resistor R4 is connected to one end of resistor R3 and pin 14 of chip U3. Pin 12 of chip U3 is connected to one end of diode D9. The other end of diode D9 is connected to pin 4 of chip U1. Pin 9 of chip U3 is connected to one end of capacitor C8. Pin 1 of chip U1 is connected to the positive end of the battery pack. Pin 3 of chip U1 is connected to one end of resistor R1 and one end of resistor R2, respectively. Pin 2 of chip U1 is connected to one end of diode D3 and one end of inductor L1, respectively. The other end of inductor L1 is connected to the other end of resistor R2 and one end of electrolytic capacitor E1, respectively. The connection between inductor L1 and electrolytic capacitor E1 is connected to one end of capacitor C1 and pin 2 of chip U2, respectively. Pin 3 of chip U2 is connected to one end of capacitor C3 and one end of electrolytic capacitor E2, respectively. Pins 6 and 7 of chip U4 are both connected to the side of the LED light board that is directly opposite to it.

[0023] The power-saving module includes transistor Q3, diode D8, diode D9 and resistor R5. The collector of transistor Q3 is connected to one end of diode D8, and the other end of diode D8 is connected to one end of diode D9 and one end of resistor R5 respectively. The emitter of transistor Q3 is grounded.

[0024] The other end of resistor R15, the emitter of transistor Q3, the other end of capacitor C11, the other end of photovoltaic panel, the other end of capacitor C2, the other end of resistor R3, the other end of capacitor C8, pin 7 of chip U3, pin 5 of chip U1, pin 6 of chip U1, pin 7 of chip U1, pin 8 of chip U1, pin 9 of chip U1, pin 10 of chip U1, the other end of diode D3, the other end of electrolytic capacitor E1, the other end of capacitor C1, pin 1 of chip U2, the other end of capacitor C3, pin 0 of chip U4, and the other end of electrolytic capacitor E2 are all grounded.

[0025] A solar energy detection port and an automatic power-on control port are provided at the connection point between diode D8 and capacitor C11.

[0026] The three pins of chip U2 are connected to an external module and a Bluetooth module, respectively. The Bluetooth module includes chip U8, resistors R85 and R84, test point T40, test point T42, diode D3, diode D4, capacitors C31, C13, C14, C2, resistors R43 and R16, capacitors C18, C29, C28, C55, and C25. Pin 30 of chip U8 is connected to one end of resistor R85, pin 29 of chip U8 is connected to one end of resistor R84, pin 25 of chip U8 is connected to one end of test point T42, and pin 24 of chip U8 is connected to one end of test point T40. The other ends of test points T42 and T40 are connected to... Pin 20 of chip U8 is connected to one end of capacitor C31. Pin 19 of chip U8 is connected to one end of resistor R43, one end of capacitor C14, one end of capacitor C2, and one end of resistor R16. The other end of resistor R43 is connected to one end of capacitor C13. Pin 10 of chip U8 is connected to one end of capacitor C25. Pin 8 of chip U8 is connected to one end of capacitor C28 and one end of capacitor C29. Pin 22 of chip U8 is connected to one end of capacitor C18. The other ends of capacitor C31, pin 22 of chip U8, capacitor C13, capacitor C14, capacitor C2, capacitor C28, capacitor C29, and capacitor C18 are all grounded.

[0027] Pin 18 of chip U3 is connected to a 2.4G wireless communication module. The 2.4G wireless communication module includes relay J1, resistors R1 and R2, pressure switch PB1, capacitor C1, resistors R3, capacitor C3, and capacitor C2. Pin 10 of relay J1 is connected to one end of resistor R2 and one end of capacitor C1. The connection between resistor R2 and capacitor C1 is connected to one end of pressure switch PB1. Pin 6 of relay J1 is connected to one end of resistor R3. Pin 1 of relay J1 is connected to one end of capacitor C3 and one end of capacitor C2. Pin 19 of relay J1 is connected to one end of resistor R1. Pins 15 and 13 of relay J1, the other end of pressure switch PB1, the other end of capacitor C1, the other end of resistor R3, pin 2 of relay J1, the other end of capacitor C3, and the other end of capacitor C2 are all grounded.

[0028] Pin 17 of chip U3 is connected to an IR remote control module. The IR remote control module includes an infrared transmitter and a resistor R10. Pin 1 of the infrared transmitter is connected to one end of the resistor R10, and the pin of the infrared transmitter is grounded.

[0029] The radar module is connected to pin 16 of chip U3.

[0030] In this invention, the main IC components of the circuit are: chip U1-XL7005ASOP8 DC-DC converter IC converts the 25.6V of the battery pack to 5.0V; chip U2-ME6233SOT89-3LDO converts the 5.0V to 3.3V to supply chip U3-N76E003TSSOP20 MCU, 2.4G wireless communication module, and MW radar sensing module; chip U4 is Shanghai Nanlin LN4524SOP8 high-current synchronous constant current drive IC; pin 1 of chip U4 is connected to the positive terminal of the 25.6V battery pack, and the voltage is supplied through the internal LDO... A 4.7V high-level signal is generated internally at pin 4 (point A), which, through resistor R5, provides a high-level shutdown signal (point D) to pin 4 (EN) of chip U1. When the levels at points C, E, and B are low, the level at point D is high. Only chips U4 and U1 are in standby mode, with a current of approximately 350uA. Chips U2 and U3, or any external modules, are not operating, and the overall circuit current is <900uA. When a high-level signal is generated at point E connected to the photovoltaic panel, the voltage at point B and point D is low, and the EN signal of chip U1 is also low. When chip U1 powers on, it generates a 5V voltage to chip U2, and chip U2 generates a 3.3V voltage to chip U3. This enables 2.4G wireless communication and the radar sensing module. When chip U3 runs its program and causes point C to go low, regardless of whether points E or B are at a low level, point D will always be low, ensuring the entire circuit operates normally and achieving automatic power-on. If chip U3 receives a power-off signal, and point C goes high, when the photovoltaic panel is not connected, points E are low and B is high, resulting in point D going high. When this occurs, chip U1 powers off, triggering a power-on signal to chip U2-chip U3 or an external module. In the power-off state, a low-power state is achieved; at this time, the entire circuit's operating current is <900uA and 0.02W. Similarly, in the example above, a 25.6V 30AH = 768Wh battery with a static power consumption of 0.02W has a standby time of 768Wh / 0.02W = 38400H = 1600 days; the standby days have increased tenfold. After a year of long-term sea or land transportation, the battery pack still has 592Wh of power remaining when it reaches the customer. A, B, C, D, E level logic, power consumption relationship diagram: 0---low level 1---high level X---any level.

[0031] Point A Point E Point B Point C Point D Functional modules Circuit operating status 1 0 1 1 1 0 Low power consumption 0.02W 1 0 1 0 0 1 Static power consumption 0.2W 1 1 0 X 0 1 0.2W upon power-on

[0032] Controlling the voltage level at point D controls the entire circuit's operation. A circuit with diode D4, resistor R6, resistor R14, transistor Q3, and diode D8 controlling the voltage at point D automatically powers on, eliminating the need for manual switching or magnetic switches. A circuit with diode D9, chip U3, and a functional module controlling the voltage at point D powers off, reducing power consumption from 0.2W to a low 0.02W, suitable for long-distance transport. Key features: Diodes D9 and D8, transistor Q3, resistor R5, and auxiliary components are implemented at extremely low cost (not limited to one diode D9; any additional diode can be added to achieve an on / off signal).

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A circuit structure for increasing the standby days of solar lamps and enabling automatic power-on, comprising a circuit board, characterized in that: The circuit board contains a power-saving module. The circuit board includes a photovoltaic panel, connectors, diode D4, resistors R6 and R14, transistor Q3, resistor R15, capacitor C11, diode D8, resistors R5 and R7, constant current driver IC chip U4, capacitor C2, resistors R4 and R3, MCU chip U3, diode D9, DC-DC chip U1, capacitor C8, battery pack positive terminal, resistors R1 and R2, diode D3, inductor L1, electrolytic capacitor E1, capacitor C1, LDO chip U2, capacitor C3, LED light board, and electrolytic capacitor E2. The constant current driver IC chip U4 is model LN4524, and the DC-DC chip U1 is model X. The L7005 and LDO chip U2 are model ME6233, and the MCU chip U3 is model N76E003. One end of the photovoltaic panel is connected to one end of the connector. The other end of the connector is connected to one end of diode D4. The other end of diode D4 is connected to one end of resistor R6. The other end of resistor R6 is connected to one end of resistor R14. The other end of resistor R14 is connected to one end of resistor R15 and the base of transistor Q3. The collector of transistor Q3 is connected to one end of capacitor C11 and one end of diode D8. The other end of diode D8 is connected to one end of resistor R5. The other end of resistor R5 is connected to one end of resistor R7 and the constant current... The 4th pin of the driver IC chip U4 is connected. Resistor R5 is connected to one end of capacitor C2 at the connection point between pin 4 and the constant current driver IC chip U4. The other end of resistor R7 is connected to pin 5 of the constant current driver IC chip U4. Pin 3 of the constant current driver IC chip U4 is connected to one end of resistor R4. The other end of resistor R4 is connected to one end of resistor R3 and pin 14 of MCU chip U3. Pin 12 of MCU chip U3 is connected to one end of diode D9. The other end of diode D9 is connected to pin 4 of DC-DC chip U1. Pin 9 of MCU chip U3 is connected to one end of capacitor C8. Pin 1 of DC-DC chip U1 is connected to the battery pack. One end of the assembly is connected, and pins 3 of the DC-DC chip U1 are connected to one end of resistor R1 and one end of resistor R2, respectively. Pins 2 of the DC-DC chip U1 are connected to one end of diode D3 and one end of inductor L1, respectively. The other end of inductor L1 is connected to the other end of resistor R2 and one end of electrolytic capacitor E1, respectively. The connection between inductor L1 and electrolytic capacitor E1 is connected to one end of capacitor C1 and pin 2 of LDO chip U2, respectively. Pins 3 of LDO chip U2 are connected to one end of capacitor C3 and one end of electrolytic capacitor E2, respectively. Pins 6 and 7 of the constant current drive IC chip U4 are both connected to the side of the LED light board facing the LED light board.

2. The circuit structure for increasing the standby days of a solar lamp and enabling automatic power-on according to claim 1, characterized in that: The power-saving module includes a transistor Q3, a diode D8, a diode D9, and a resistor R5. The collector of the transistor Q3 is connected to one end of the diode D8, and the other end of the diode D8 is connected to one end of the diode D9 and one end of the resistor R5. The emitter of the transistor Q3 is grounded.

3. The circuit structure for increasing the standby days of a solar lamp and enabling automatic power-on as described in claim 1, characterized in that: The other end of resistor R15, the emitter of transistor Q3, the other end of capacitor C11, the other end of photovoltaic panel, the other end of capacitor C2, the other end of resistor R3, the other end of capacitor C8, pin 7 of MCU chip U3, pin 5 of DC-DC chip U1, pin 6 of DC-DC chip U1, pin 7 of DC-DC chip U1, pin 8 of DC-DC chip U1, pin 9 of DC-DC chip U1, pin 10 of DC-DC chip U1, the other end of diode D3, the other end of electrolytic capacitor E1, the other end of capacitor C1, pin 1 of LDO chip U2, the other end of capacitor C3, pin 0 of constant current drive IC chip U4, and the other end of electrolytic capacitor E2 are all grounded.

4. The circuit structure for increasing the standby days of a solar lamp and enabling automatic power-on as described in claim 1, characterized in that: The connection between diode D8 and capacitor C11 is provided with a solar energy detection port and an automatic power-on control port.

5. The circuit structure for increasing the standby days of a solar lamp and enabling automatic power-on according to claim 1, characterized in that: The LDO chip U2 has three pins connected to an external module and a Bluetooth module, respectively. The Bluetooth module includes a chip U8, resistors R85 and R84, test point T40 and T42, diodes D3 and D4, capacitors C31, C13, C14, and C2, resistors R43 and R16, capacitors C18, C29, C28, C55, and C25. Pin 30 (HCI-RXD) of chip U8 is connected to one end of resistor R85; pin 29 (HCI-TXD) of chip U8 is connected to one end of resistor R84; pin 25 (LED2) of chip U8 is connected to one end of test point T42; and pin 24 (LED1) of chip U8 is connected to one end of test point T40. The other ends of test points T42 and T40 are connected to the chip U8... Pin 20 (SYS-PW) is connected to one end of capacitor C31. Pin 19 (BAT-IN) of chip U8 is connected to one end of resistor R43, one end of capacitor C14, one end of capacitor C2, and one end of resistor R16. The other end of resistor R43 is connected to one end of capacitor C13. Pin 10 (MIC-P1) of chip U8 is connected to one end of capacitor C25. Pin 8 (CODEC_VIN) of chip U8 is connected to one end of capacitor C28 and one end of capacitor C29. Pin 11 (MIC_N1) of chip U8 is connected to one end of capacitor C18. The other ends of capacitor C31, pin 22 (GND) of chip U8, and the other ends of capacitors C13, C14, C2, C28, C29, and C18 are all grounded.

6. The circuit structure for increasing the standby days of a solar lamp and enabling automatic power-on according to claim 1, characterized in that: The MCU chip U3 has a 2.4G wireless communication module connected to pin 18. The 2.4G wireless communication module includes a relay J1, resistors R1 and R2, a pressure switch PB1, capacitors C1, R3, C3, and C2. Pin 10 (RST) of relay J1 is connected to one end of resistor R2 and one end of capacitor C1. The connection between resistor R2 and capacitor C1 is connected to one end of pressure switch PB1. Pin 6 (GPIO15) of relay J1 is connected to one end of resistor R3. Pin 1 (VCC) of relay J1 is connected to one end of capacitor C3 and one end of capacitor C2. Pin 19 (CHIP-EN) of relay J1 is connected to one end of resistor R1. Pin 15 (GND), pin 13 (GND), the other end of pressure switch PB1, the other end of capacitor C1, the other end of resistor R3, pin 2 (GND) of relay J1, the other end of capacitor C3, and the other end of capacitor C2 are all grounded.

7. The circuit structure for increasing the standby days of a solar lamp and enabling automatic power-on according to claim 1, characterized in that: The MCU chip U3 has an IR remote control module connected to pin 17.

8. The circuit structure for increasing the standby days of a solar lamp and enabling automatic power-on according to claim 1, characterized in that: The radar module is connected to pin 16 of the MCU chip U3.

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