A power bank with solar charging function

Abstract

The utility model discloses a kind of power banks with solar charging function, three six-way sliding switch is additionally provided between power bank body and detachable solar panel, form "stop, external charging, internal charging" three gears.Solar panel is cut off in stop gear, prevent reverse leakage;External charging gear directly connects output interface with solar panel, can be used while sunning;Internal charging gear only charges internal battery, while disconnecting mains input, avoid circulating current.Body is provided with fixed clamping groove, take-up slot and temperature sensor, cooperate with display screen / buzzer real-time alarm.Structure is simple, intuitive operation, improve solar utilization and prolong battery life.

Description

Technical Field

[0001] This utility model relates to a power bank, and more particularly to a power bank with solar charging function. Background Technology

[0002] Most portable power banks on the market currently only support USB charging via AC power. While a few products incorporate solar panels, they generally suffer from the following drawbacks: 1. The solar panel output is fixed in parallel with the internal battery and cannot be disconnected, leading to reverse current flow and continuous low-current loss at night or in low light conditions; 2. The solar panel can only charge the internal battery and cannot directly supply power to external loads, reducing the efficiency of solar energy utilization; 3. In scenarios involving simultaneous charging and discharging, the solar input, AC power input, and load output are all connected to the same node, which can easily cause circulating current, voltage drops, and thermal runaway, posing safety hazards; 4. There is a lack of an intuitive, manually selectable energy path switching mechanism, preventing users from flexibly switching operating modes according to lighting conditions or actual needs. Utility Model Content

[0003] This invention aims to solve the problems existing in the prior art by providing a power bank with solar charging function, which simplifies user operation and allows users to intuitively select the desired energy path through a mechanical switch, thereby improving convenience and safety.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: A power bank with solar charging function includes a power bank body and a solar charging panel. The power bank body has a battery and a motherboard inside, and the battery is electrically connected to the motherboard. The surface of the power bank body has an output interface and an input interface. The surface of the power bank body also has a switch with solar power off, solar external charging, and solar internal charging modes.

[0005] When the switch is in the solar power off position, the solar charging panel is disconnected from the main board, and the output interface and input interface are electrically connected to the main board respectively.

[0006] When the switch is in the solar external charging position, the solar charging panel is electrically connected to the output interface, and the output interface is disconnected from the motherboard.

[0007] When the switch is in the solar internal charging position, the solar charging panel is electrically connected to the main board, and the input interface is disconnected from the main board.

[0008] To further improve the design, the switching switch is a three-position five-way slide switch.

[0009] To further improve the design, the power bank body has a fixing slot on its surface for mounting a solar charging panel, and a connecting wire is provided between the solar charging panel and the switch.

[0010] To further improve the design, one end of the fixed slot is provided with a wire take-up groove, and the other end of the fixed slot is provided with a notch.

[0011] To further improve the system, the battery and the solar charging plate are respectively equipped with a battery temperature sensor and a solar panel temperature sensor. The battery temperature sensor is electrically connected to the main board, and the solar panel temperature sensor is electrically connected to the main board via a connecting wire.

[0012] To further improve the design, the power bank body has a display screen or buzzer on its surface, and the display screen or buzzer is electrically connected to the motherboard.

[0013] The beneficial effects of this utility model are: 1. It is equipped with a three-level switch of "solar power off / solar external charging / solar internal charging" to completely cut off the connection between the solar panel and the internal battery in the power off or external charging mode, prevent reverse leakage, and extend battery life;

[0014] 3. In the solar external charging mode, the solar panel can directly supply power to the output interface, realizing "using while sunbathing", improving the immediate utilization rate of solar energy, and is suitable for outdoor emergency scenarios;

[0015] 4. The switching switch adopts a three-position five-way sliding switch with mechanical interlock, clear gear position, and high reliability, so users do not need to remember complicated operations;

[0016] 5. When switching to the solar internal charging mode, the AC power input interface is disconnected from the motherboard to avoid the risk of circulating current and thermal runaway caused by simultaneous connection of two inputs;

[0017] 6. By adding a temperature sensor, display screen, or buzzer, the temperature of the battery and solar panel can be monitored in real time. When the temperature exceeds the limit, an alarm will be triggered or the power will be automatically reduced, further improving safety.

[0018] 7. The overall structure is compact, and the design of the fixing slot, cable tray and notch facilitates the quick installation and removal of solar panels and cable storage, improving portability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the power bank body and the solar charging panel when separated.

[0020] Figure 2 This is a structural diagram of the back of the power bank (excluding the casing cover).

[0021] Figure 3 This is a schematic diagram of the structure when the power bank body and the solar charging panel are combined.

[0022] Figure 4 This is a schematic diagram illustrating the circuit function of a power bank.

[0023] Explanation of reference numerals in the attached diagram: 1. Power bank body; 2. Solar charging panel; 3. Battery; 4. Mainboard; 5. Output interface; 6. Input interface; 7. Switch; 8. Display screen; 9. Fixing slot; 10. Connecting cable; 11. Cable tray; 12. Notch; 13. Battery temperature sensor; 14. Solar panel temperature sensor. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] See attached document Figure 1-2 This embodiment describes a power bank with solar charging function, including a power bank body 1 and a solar charging panel 2. The power bank body 1 has a battery 3 and a motherboard 4 inside, and the battery 3 is electrically connected to the motherboard 4. The surface of the power bank body 1 has an output interface 5 and an input interface 6. The motherboard 4 realizes charging and discharging management to ensure safe and reliable energy exchange between the battery 3 and external devices and mains power.

[0026] The power bank body 1 is also provided with a switch 7 on its surface. The switch 7 has a solar power off position, a solar external charging position, and a solar internal charging position. The switch 7 changes the internal circuit connection through mechanical switching to realize the rapid and conflict-free switching of the three energy paths.

[0027] As attached Figure 4 As shown, when the switch 7 is in the solar power off position, the solar charging panel 2 is disconnected from the main board 4, and the output interface 5 and the input interface 6 are electrically connected to the main board 4 respectively; this position completely isolates the solar panel 2, prevents reverse leakage at night, reduces static power consumption, and extends the life of the battery 3.

[0028] When the switch 7 is in the solar external charging position, the solar charging panel 2 is electrically connected to the output interface 5, and the output interface 5 is disconnected from the main board 4; the solar panel 2 directly supplies power to the load, realizing "using while being exposed to sunlight", improving the instant utilization rate of solar energy and reducing the number of cycles of the battery 3.

[0029] When the switch 7 is in the solar internal charging position, the solar charging panel 2 is electrically connected to the main board 4, and the input interface 6 is disconnected from the main board 4; the mains power input is mechanically cut off to avoid the two inputs from generating circulating current and thermal runaway, and only the solar panel 2 safely charges the battery 3.

[0030] The switching switch 7 is a three-position five-way sliding switch. The middle position is the solar power off position, and the left and right positions are the solar external charging position and the solar internal charging position, respectively. The mechanical interlocking structure of the sliding switch ensures that only one path is connected at any time, with clear positions and a low probability of misoperation.

[0031] The power bank body 1 has a fixing slot 9 on its surface for mounting the solar charging panel 2. A connecting wire 10 is provided between the solar charging panel 2 and the switch 7. The connecting wire 10 allows the solar charging panel 2 and the power bank body 1 to be separated by a certain distance when in use. For example, when camping outdoors, the solar charging panel 2 and the power bank body 1 can be placed outside and inside the tent respectively. The fixing slot 9 allows the solar panel 2 to be quickly inserted and removed for positioning. The connecting wire 10 simultaneously transmits power and temperature signals, improving overall portability.

[0032] One end of the fixing slot 9 is provided with a cable take-up groove 11, and the other end of the fixing slot is provided with a notch 12; the cable take-up groove 11 collects excess cable to prevent tangling, as shown in the attached figure. Figure 3 As shown, the notch 12 makes it easy to pick up and put down the solar panel 2 with your fingers, taking into account both aesthetics and ease of operation.

[0033] The battery 3 and the solar charging panel 2 are respectively equipped with a battery temperature sensor 13 and a solar panel temperature sensor 14. The battery temperature sensor 13 is electrically connected to the main board 4, and the solar panel temperature sensor 14 is electrically connected to the main board 4 through the connecting wire 10. The main board 4 monitors the temperature at both locations in real time. When the temperature exceeds the limit, it reduces the charging current or cuts off the input to prevent thermal damage.

[0034] The power bank body 1 is provided with a display screen 8 or a buzzer on its surface. The display screen 8 or buzzer is electrically connected to the motherboard 4. The display screen 8 visually displays the temperature, power level and current power level information. The buzzer sounds an alarm when there is an abnormality, improving user experience and safety.

[0035] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A power bank with solar charging function, comprising a power bank body (1) and a solar charging panel (2), wherein the power bank body (1) is internally provided with a battery (3) and a main board (4), the battery (3) and the main board (4) are electrically connected, and the surface of the power bank body (1) is provided with an output interface (5) and an input interface (6), characterized in that: The power bank body (1) is also provided with a switch (7) on its surface. The switch (7) has a solar power off position, a solar external charging position, and a solar internal charging position. When the switch (7) is in the solar power off position, the solar charging panel (2) is disconnected from the main board (4), and the output interface (5) and the input interface (6) are electrically connected to the main board (4) respectively. When the switch (7) is in the solar external charging position, the solar charging panel (2) is electrically connected to the output interface (5), and the output interface (5) is disconnected from the main board (4); When the switch (7) is in the solar internal charging position, the solar charging panel (2) is electrically connected to the main board (4), and the input interface (6) is disconnected from the main board (4).

2. A power bank with solar charging function according to claim 1, characterized in that: The switching switch (7) is a three-position five-way sliding switch.

3. A power bank with solar charging function according to claim 1, characterized in that: The power bank body (1) has a fixing slot (9) for placing the solar charging panel (2) on its surface, and a connecting wire (10) is provided between the solar charging panel (2) and the switch (7).

4. A power bank with solar charging function according to claim 3, characterized in that: One end of the fixed slot is provided with a wire take-up groove (11), and the other end of the fixed slot is provided with a notch (12).

5. A power bank with solar charging function according to claim 3, characterized in that: The battery (3) and the solar charging panel (2) are respectively equipped with a battery temperature sensor (13) and a solar panel temperature sensor (14). The battery temperature sensor (13) is electrically connected to the main board (4), and the solar panel temperature sensor (14) is electrically connected to the main board (4) through a connecting wire (10).

6. A power bank with solar charging function according to claim 1 or 5, characterized in that: The power bank body (1) has a display screen (8) or a buzzer on its surface, and the display screen (8) or buzzer is electrically connected to the motherboard (4).

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