A solar panel assembly detachable solar backpack

Abstract

The utility model relates to the field of backpack, concretely relates to a solar energy backpack with detachable solar panel assembly, including backpack, lithium battery assembly and multifunctional plate set at the bottom of backpack. Multifunctional plate is detachably arranged on the outer surface of backpack, and multifunctional plate includes shell, solar panel assembly and LED lamp plate, and solar panel assembly and LED lamp plate are fixedly arranged in the inside of waterproof shell, and the output end of solar panel assembly is connected with lithium battery assembly and LED lamp plate. The utility model solves the problem that the solar panel is easy to be damaged in the design of the existing solar energy backpack and is not easy to replace and maintain after being damaged, and the built-in battery protection plate of lithium battery assembly can prevent overcharge, overdischarge, short circuit and other problems, prolong the service life of the battery, and the LED lamp plate can be used for advertisement display or cycling reminder, expanding the use scene of the backpack.

Description

Technical Field

[0001] This utility model relates to the field of backpacks, specifically to a solar backpack with a detachable solar panel assembly. Background Technology

[0002] With the rapid development of science and technology, people are going out more frequently, leading to a greater demand for backpacks, as well as the need to charge electronic devices. Solar backpacks absorb solar energy through built-in solar panels and convert it into electrical energy, which is stored in a built-in lithium battery. Depending on the interface, they can charge or power various mobile phones or electronic products, solving the problem of outdoor charging to some extent.

[0003] However, in existing solar backpack designs, the solar panels are fixed to the outside of the backpack, making them susceptible to damage. As a core component of the backpack, once the solar panel is damaged, it is difficult for users to repair or replace it themselves, resulting in a poor user experience. In addition, the lithium batteries in existing solar backpacks lack charging indication functions, and lithium batteries have a strict full-charge voltage threshold. Overcharging may cause safety hazards such as bulging, lifespan reduction, or even fire. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a solar backpack with detachable solar panel components.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A solar backpack with a detachable solar panel assembly includes a backpack and a lithium battery assembly located at the bottom of the backpack, as well as a multi-functional panel. The multi-functional panel includes a housing, a solar panel assembly, and an LED light sign. The solar panel assembly and the LED light sign are fixedly disposed inside the housing, which is detachably disposed on the outer surface of the backpack. The output terminal of the solar panel assembly is electrically connected to the lithium battery assembly and the LED light sign.

[0006] Furthermore, it also includes a connecting component, which includes a mounting piece on the outer surface of the backpack and a connector on the back of the shell. The positions of the connector and the mounting piece correspond to the positions of the mounting piece. The shell is divided into a first space, a second space, and a third space, which correspond to the left, front, and right sides of the backpack, respectively. A zipper is also vertically provided on the back of the second space of the shell. The solar panel assembly includes three solar panels, which are respectively located in the first, second, and third spaces of the shell. An LED light sign is located on the upper part of the second space. Two connectors are provided on the back of the first and third spaces, and four connectors are provided on the back of the second space.

[0007] Furthermore, the connector includes an integrally formed base and a plug on the base. The base is fixedly connected to the back of the housing. The plug also includes a limiting block and a support block. The limiting block is located at the end away from the base, and the support block is located between the base and the limiting block. The diameter of the limiting block is larger than the diameter of the support block. The mounting component includes a base, an upper mounting groove for the support block to pass through, and a lower mounting groove that matches the limiting block of the plug. The openings of the upper and lower mounting grooves are both upward. The upper and lower mounting grooves are coaxially connected. The height of the lower mounting groove is the same as the height of the limiting block, and the height of the upper mounting groove is not greater than the height of the support block.

[0008] Furthermore, the limiting block is shaped like a frustum, with the longer side of the limiting block connected to the support block. The mounting component also includes a spring plate and a radial receiving groove. The radial receiving groove is located inside the lower mounting groove. When the spring plate retracts inward, it is embedded in the radial receiving groove. The inner surface of the spring plate and the outer surface of the limiting block are matched. The upper end of the base is provided with a track for the limiting block to pass through. The width of the track is the same as the width of the lower mounting groove, and the end of the track is flush with the bottom of the lower mounting groove.

[0009] Furthermore, the upper and lower mounting slots of the mounting component have the same width, a radial receiving slot is provided in the upper mounting slot, and the inner surface of the spring sheet mates with the outer surface of the support block.

[0010] Furthermore, the lithium battery assembly includes a lithium battery with a built-in battery protection board and a charging indicator light located on the outer side of the backpack, the charging indicator light being electrically connected to the lithium battery.

[0011] Furthermore, the LED light sign has built-in Wi-Fi and Bluetooth modules, which allow it to send and receive connection signals.

[0012] Furthermore, the solar panel assembly also includes a reverse charging diode and a voltage regulator circuit board. The reverse charging diode is connected in series at the output terminal of the solar panel, and the reverse charging diode keeps the current flowing from the solar panel to the lithium battery assembly. The voltage regulator circuit board is located inside the housing, and the input terminal of the voltage regulator circuit board is electrically connected to the solar panel assembly. The output terminal of the voltage regulator circuit board is the output terminal of the solar panel assembly.

[0013] Furthermore, it also includes a controller, which is located inside the housing. The controller's input is connected to the output of the solar panel assembly, and the controller's output is connected to a common interface and an LED sign.

[0014] Furthermore, it also includes a common interface located on the outer side of the backpack, which is connected to the lithium battery assembly. The common interface is a USB interface, and the output of the controller is connected to the common interface via a USB cable.

[0015] Furthermore, it also includes a control chip, which is connected between the common interface and the lithium battery assembly to control the charging and discharging modes of the lithium battery.

[0016] Furthermore, the outer shell of the multi-functional board is made of waterproof material, and the backpack also has a waterproof component inside. The waterproof component is located outside the lithium battery component, providing double waterproof protection for the outer shell and the bottom of the backpack, protecting the internal solar panel, LED light board, circuit and other components from rain and moisture.

[0017] As described above, the solar backpack with a detachable solar panel assembly provided by this utility model solves the problems of easy damage to the solar panel and difficulty in replacement and repair after damage in existing solar backpack designs by placing the solar panel in a detachable shell; the lithium battery assembly has a built-in battery protection board to prevent overcharging, over-discharging, short circuits and other problems, thus extending battery life; the charging indicator light intuitively displays the charging status, making it convenient for users to monitor the charging progress; the lithium battery protection board and anti-reverse charging diode prevent battery damage or energy backflow from the circuit level, improving safety; the LED sign has built-in Wi-Fi and Bluetooth modules, which can connect to mobile phones and other devices wirelessly to achieve remote control or act as a signal transceiver, enabling advertising display or cycling reminders, thus expanding the backpack's usage scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the backpack structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the detachable solar panel assembly of this utility model.

[0021] Figure 4 This is a schematic diagram of the connection component of this utility model.

[0022] Figure 5 This is a schematic diagram of the connecting assembly of the present invention, which uses a spring sheet to fix the limiting block.

[0023] Figure 6 This is a schematic diagram of the connecting assembly of the present invention, which uses spring plates to fix the support block.

[0024] Figure 7 This is a structural diagram showing the installation component and connector of this utility model in a connected state.

[0025] In the diagram: 1. Backpack; 2. Lithium battery assembly; 21. Lithium battery; 22. Charging indicator light; 3. Outer shell; 3a. First space; 3b. Second space; 3c. Third space; 31. Zipper; 4. Solar panel assembly; 41. Solar panel; 42. Voltage regulator circuit board; 5. LED light board; 6. Mounting parts; 61. Base; 611. Track; 62. Upper mounting slot; 63. Lower mounting slot; 64. Spring sheet; 65. Radial receiving slot; 7. Connector; 71. Base; 72. Plug; 721. Limiting block; 722. Support block; 8. Controller; 9. Common interface. Detailed Implementation

[0026] The present invention will be further described below through specific embodiments.

[0027] like Figures 1 to 3 As shown, the solar backpack with a detachable solar panel assembly of this utility model includes a backpack 1 and a lithium battery assembly 2 located at the bottom of the backpack. It also includes a multi-functional board, which includes a shell 3, a solar panel assembly 4, and an LED light sign 5. The solar panel assembly 4 and the LED light sign 5 are fixedly installed inside the shell 3, and the shell 3 is detachably installed on the outer surface of the backpack 1. The output end of the solar panel assembly 4 is connected to the LED light sign 5 and the lithium battery assembly 2.

[0028] like Figure 2 and Figure 4 As shown, the solar backpack also includes a connecting assembly, which includes a mounting piece 6 on the outer surface of the backpack and a connector 7 on the back of the outer shell. The positions of the connector 7 and the mounting piece 6 correspond to each other. The outer shell 3 is divided into a first space 3a, a second space 3b, and a third space 3c, which correspond to the left, front, and right sides of the backpack 1, respectively. The back of the second space 3b of the outer shell 3 also has a vertical zipper 31 for easy maintenance and inspection of the solar panels 41. The solar panel assembly 4 includes three solar panels 41, which are respectively located in the first space 3a, the second space 3b, and the third space 3c of the outer shell 3. The LED light sign 5 is located at the top of the second space 3b. The backs of the first space 3a and the third space 3c each have two connectors 7, and the back of the second space 3b has four connectors 7. At the same time, the three spaces of the outer shell 3 correspond to the left, front, and right sides of the backpack, respectively. When unfolded, the solar panels can be fully unfolded, and when folded, space is saved, balancing practicality and portability.

[0029] like Figure 4As shown, the connector 7 includes an integrally formed base 71 and a plug 72 disposed on the base 71. The base 71 is fixedly connected to the back of the housing 3. The plug 72 also includes a limiting block 721 and a support block 722. The limiting block 721 is disposed at the end away from the base 71, and the support block 722 is disposed between the base 71 and the limiting block 721. The diameter of the limiting block 721 is larger than the diameter of the support block 722. The mounting component 6 includes a base 61, an upper mounting groove 62 for the support block 722 to pass through, and a lower mounting groove 63 that matches the limiting block 721 of the plug 72. Both the upper mounting groove 62 and the lower mounting groove 63 have upward openings. The upper mounting groove 62 and the lower mounting groove 63 are coaxially connected. The height of the lower mounting groove 63 is the same as the height of the limiting block 721. The height of the upper mounting groove 62 is not greater than the height of the support block 722. The upper mounting groove 62 allows the support block 722 to enter, and the lower mounting groove 63 allows the limiting block 721 to enter. Both grooves are set upwards to prevent the connector 7 from falling off due to gravity. At this time, the limiting block 721 is radially fixed in the lower mounting groove 63 through the cooperation of the upper mounting groove 62 and the lower mounting groove 63.

[0030] Because the stability of the aforementioned connector 7 and mounting component 6 is poor, furthermore, such as Figure 5 As shown, the limiting block 721 of the connector 7 is shaped like a frustum. The side of the limiting block 721 with a longer diameter is connected to the support block 722. The mounting part 6 also includes a spring plate 64 and a radial receiving groove 65. The radial receiving groove 65 is located inside the lower mounting groove 63. When the spring plate 64 retracts inward, it is embedded in the radial receiving groove 65. The inner surface of the spring plate 64 and the outer surface of the limiting block 721 are matched. The upper end of the base 61 is provided with a track 611 for the limiting block 721 to pass through. The width of the track 611 is the same as the width of the lower mounting groove 63. The end of the track 611 is flush with the bottom of the lower mounting groove 63.

[0031] If the connection is not installed, such as Figure 5 As shown, due to its elasticity, part of the spring sheet 64 is located within the lower mounting groove 63. When the connecting piece 7 pushes the mounting piece 6 in, the limiting block 721 enters the lower mounting groove 63 via the track 611. The spring sheet 64 is squeezed into the radial receiving groove 65 by the limiting block 721. The limiting block 721 moves upward, and the inner surface of the spring sheet 64 and the outer surface of the limiting block 721 mate, fixing the limiting block 721 in place, making it less susceptible to the effects of vibration and other factors. Figure 7 As shown.

[0032] When disassembling the solar panel assembly 4, press the base 71 of the connector 7 to move the limiting block 721 down into the track 611. At the same time, the spring plate 64 is squeezed into the radial receiving groove 65, pushing the connector 7 upward. The spring plate 64 cooperates with the frustum limiting block 721, automatically locking during installation and unlocking by pressing during disassembly. The structure is stable and easy to operate, with stronger anti-fall-off performance.

[0033] To further enrich the installation methods of connection components, such as... Figure 6 As shown, the upper mounting groove 62 and lower mounting groove 63 of the mounting component 6 have the same width. A radial receiving groove 65 is provided in the upper mounting groove 62, and the inner surface of the spring plate 64 mates with the outer surface of the support block 722. When the connecting components are not connected, the spring plate 64, due to its elasticity, has part of its structure within the upper mounting groove 62. The connecting component 7 can not only be pushed into the upper mounting groove 62 and lower mounting groove 63 via the track 611, but the spring plate can also fix the support block 722, making it difficult for the connecting component 7 to fall off. In addition, since the width of the upper mounting groove and the lower mounting groove are the same, the connecting component 7 can also be pressed vertically into the upper mounting groove 62 and lower mounting groove 63. When the limiting block 721 abuts against the spring plate 64, the spring plate 64 retracts and embeds itself in the radial receiving groove 65. After the limiting block 721 passes through the upper mounting groove 62, the spring plate 64 returns to its position and fixes the support block 722, thereby achieving a stable connection between the connecting component 7 and the mounting component 6.

[0034] like Figure 2 As shown, the lithium battery assembly 2 includes a lithium battery 21 with a built-in battery protection board and a charging indicator light 22 located on the outer side of the backpack. The charging indicator light 22 is electrically connected to the lithium battery 21. The built-in battery protection board of the lithium battery assembly 2 can prevent problems such as overcharging, over-discharging, and short circuits, thus extending battery life; the charging indicator light 22 intuitively displays the charging status, making it convenient for users to monitor the charging progress.

[0035] like Figure 3 As shown, the LED sign 5 has built-in Wi-Fi and Bluetooth modules, which send and receive connection signals. The LED sign 5's lighting and wireless connectivity can be used for advertising displays or cycling reminders, further enhancing the backpack's practicality in nighttime or complex environments.

[0036] like Figure 3 As shown, the solar panel assembly 4 also includes an anti-reverse charging diode and a voltage regulator circuit board 42. The anti-reverse charging diode is connected in series at the output terminal of the solar panel. The anti-reverse charging diode keeps the current flowing from the solar panel to the lithium battery. The anti-reverse charging diode can prevent the lithium battery from discharging to the solar panel, thus improving the safety of the backpack. The voltage regulator circuit board 42 is located inside the outer casing 3. The input terminal of the voltage regulator circuit board 42 is electrically connected to the solar panel assembly 4, and the output terminal of the voltage regulator circuit board 42 is the output terminal of the solar panel assembly 4. The voltage regulator circuit board 42 can stabilize the output voltage of the solar panel 41, avoid voltage fluctuations from damaging other components, and enhance the durability of the solar backpack.

[0037] like Figure 3As shown, the solar backpack also includes a controller 8, which is located inside the outer shell 3. The input terminal of the controller 8 is connected to the output terminal of the solar panel assembly 4, and the output terminal of the controller 8 is connected to the lithium battery assembly 2 and the LED light sign 5. The controller controls the solar panel 41 to store electricity for the lithium battery 21 or to charge the LED light sign 5.

[0038] like Figure 1 and Figure 2 As shown, it also includes a common interface 9, which is located on the outer surface of the backpack 1. The common interface 9 is a USB interface, and the output of the controller 8 is connected to the common interface 9 via a USB cable.

[0039] It also includes a control chip, which is connected between the common interface 9 and the lithium battery assembly 2 to control the charging and discharging mode of the lithium battery 21. When the control chip detects that the common interface 9 is connected to the solar panel assembly 4, it sets the lithium battery assembly 2 to charging mode. When the control chip detects that the common interface 9 is connected to an external device such as a mobile phone, it controls the lithium battery assembly 2 to discharge mode to charge the external device.

[0040] The outer shell 3 of the multi-functional board is made of waterproof material, and the backpack 1 is equipped with a waterproof component inside. The waterproof component is located outside the lithium battery component 2, which provides double waterproof protection for the outer shell and the bottom of the backpack, protecting the internal solar panel 41, LED light sign 5, circuit and other components from rain and moisture.

[0041] The method of using the solar backpack with a detachable solar panel assembly described in this utility model is as follows: In a sunny environment, the outer shell 3 is unfolded and connected to the outer surface of the backpack 1, allowing the three solar panels 41 located in the first space 3a, the second space 3b, and the third space 3c to fully receive sunlight. The solar panel assembly 4 absorbs solar energy and converts it into electrical energy. The current first passes through the anti-reverse charging diode connected in series at the output terminal of the solar panel 41 to prevent the lithium battery 21 from discharging into the solar panel, ensuring charging safety. The electrical energy is then stabilized by the voltage regulator circuit board 42 located inside the outer shell 3 before being delivered to the controller 8. The controller 8 transmits the electrical energy to the lithium battery assembly 2 through the common interface 9 to charge the lithium battery 21. At this time, the charging indicator light 22 on the outer side of the backpack 1 will light up, intuitively displaying the charging status of the lithium battery 21, allowing the user to easily monitor the charging progress. The battery protection board built into the lithium battery assembly 2 prevents overcharging, over-discharging, short circuits, and other problems, ensuring the safety of the lithium battery.

[0042] If the solar panel assembly 4 needs repair or replacement, the outer casing 3 can be removed, and the solar panel 41 inside the casing 3 can be repaired or replaced through the zipper 31 on the outer casing 3. The method for removing the outer casing 3 is as follows: Press the connector 7 on the back of the outer casing 3, causing the limiting block 721 of the plug 72 to move down into the track 611 at the upper end of the mounting base 61. At this time, the spring plate 64 of the mounting piece 6 is squeezed into the radial receiving groove 65, pushing the connector 7 upwards, thus separating the connector 7 from the mounting piece 6. By separating all connectors 7 from the mounting pieces 6 in sequence, the outer casing 3 can be removed from the backpack 1, allowing operation of the internal solar panel assembly 4.

[0043] Installation method of solar panel assembly: Prepare the outer casing 3 with solar panel assembly 4, and align the connector 7 on the back of the casing 3 with the corresponding mounting piece 6 on the outer surface of the backpack 1. The limiting block 721 can enter the lower mounting groove 63 through the track 611 at the upper end of the mounting piece 6 base 61, or it can enter the lower mounting groove 63 vertically through the upper mounting groove 62. The spring plate 64 is pressed into the radial receiving groove 65 by the limiting block 721. After the limiting block 721 moves to the appropriate position, the spring plate 64 returns to its position, fixing the limiting block 721 or the support block 722, thus completing the connection of a single connector 7 to the mounting piece 6. Following the above steps, connect all the connectors 7 to their corresponding mounting pieces 6.

[0044] The LED sign 5 is used in various applications: It connects to mobile phones and other devices via its built-in Wi-Fi and Bluetooth modules. Once connected, users can remotely control the LED sign 5's on / off status, brightness, and displayed content. The LED sign 5 can be used for lighting, advertising displays, cycling reminders, and other scenarios, expanding the backpack's functionality. Simultaneously, the controller 8 controls the solar panel 41 to power the LED sign 5 or charge the lithium battery 21. When the solar panel assembly 4 is not working, the LED sign 5 can use the lithium battery 21 as its operating power source.

[0045] Charging external devices: When you need to charge an external device such as a mobile phone, insert the charging cable of the external device into the common interface 9 on the outside of the backpack. After the control chip connected between the common interface 9 and the lithium battery assembly 2 detects the connection of the external device, it controls the lithium battery assembly 2 to enter the discharge mode. The lithium battery assembly 2 then supplies power to the external device through the common interface 9, thus realizing the charging function.

[0046] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A solar backpack with a detachable solar panel assembly, comprising a backpack (1) and a lithium battery assembly (2) disposed at the bottom of the backpack (1), characterized in that: It also includes a multi-functional board, which is detachably mounted on the outer surface of the backpack (1). The multi-functional board includes a shell (3), a solar panel assembly (4), and an LED light sign (5). The solar panel assembly (4) and the LED light sign (5) are fixedly mounted inside the shell (3). The output end of the solar panel assembly (4) is connected to the lithium battery assembly (2) and the LED light sign (5). The lithium battery assembly (2) includes a lithium battery (21) with a built-in battery protection board and a charging indicator light (22) located on the outer side of the backpack. The charging indicator light (22) is electrically connected to the lithium battery (21). It also includes a connecting component, which includes a mounting piece (6) on the outer surface of the backpack and a connector (7) on the back of the outer shell (3). The position of the connector (7) corresponds to the position of the mounting piece (6). The outer shell (3) is divided into a first space (3a), a second space (3b) and a third space (3c), which correspond to the left side, front side and right side of the backpack (1) respectively. The back of the second space (3b) of the outer shell (3) is also vertically provided with a zipper (31). The solar panel assembly (4) includes three solar panels (41). The three solar panels (41) are respectively provided in the first space (3a), the second space (3b) and the third space (3c) of the outer shell (3). The LED light sign (5) is provided in the upper part of the second space (3b). The back of the first space (3a) and the third space (3c) are respectively provided with two connectors (7), and the back of the second space (3b) is provided with four connectors (7). It also includes a controller (8), which is located inside the housing. The input of the controller (8) is connected to the output of the solar panel assembly (4), and the output of the controller (8) is connected to the lithium battery assembly (2) and the LED sign (5).

2. The solar backpack with detachable solar panel assembly according to claim 1, characterized in that: The connector (7) includes an integrally formed base (71) and a plug (72) disposed on the base. The base (71) is fixedly connected to the back of the outer shell (3). The plug (72) also includes a limiting block (721) and a support block (722). The limiting block (721) is disposed at the end away from the base (71), and the support block (722) is disposed between the base (71) and the limiting block (721). The diameter of the limiting block (721) is larger than the diameter of the support block (722). The assembly (6) includes a base (61), an upper mounting groove (62) through which the support block (722) passes, and a lower mounting groove (63) that matches the limiting block (721) of the plug (72). The upper mounting groove (62) and the lower mounting groove (63) are coaxially connected. The openings of the upper mounting groove (62) and the lower mounting groove (63) are both upward. The height of the lower mounting groove (63) is the same as the height of the limiting block (721). The height of the upper mounting groove (62) is not greater than the height of the support block (722).

3. The solar backpack with detachable solar panel assembly according to claim 2, characterized in that: The limiting block (721) is shaped like a frustum. The longer side of the limiting block (721) is connected to the support block (722). The mounting component (6) also includes a spring plate (64) and a radial receiving groove (65). The radial receiving groove (65) is located inside the lower mounting groove (63). When the spring plate (64) retracts inward, it is embedded in the radial receiving groove (65). The inner surface of the spring plate (64) and the outer surface of the limiting block (721) are matched. The upper end of the base (61) is provided with a track (611) for the limiting block (721) to pass through. The width of the track (611) is the same as the width of the lower mounting groove (63).

4. The solar backpack with detachable solar panel assembly according to claim 3, characterized in that: The upper mounting groove (62) and lower mounting groove (63) of the mounting component have the same width. The radial receiving groove (65) is located in the upper mounting groove (62). The inner surface of the spring sheet (64) matches the outer surface of the support block (722).

5. The solar backpack with detachable solar panel assembly according to claim 1, characterized in that: The LED sign (5) has a built-in Wi-Fi and Bluetooth module, and the LED sign (5) sends and receives connection signals through the Wi-Fi and Bluetooth module.

6. The solar backpack with detachable solar panel assembly according to claim 1, characterized in that: The solar panel assembly (4) also includes a voltage regulator circuit board (42), which is located inside the housing (3). The input end of the voltage regulator circuit board (42) is electrically connected to the solar panel (41), and the output end of the voltage regulator circuit board (42) is the output end of the solar panel assembly (4).

7. The solar backpack with detachable solar panel assembly according to claim 1, characterized in that: It also includes a common interface (9) located on the outer side of the backpack, which is connected to the lithium battery assembly (2). The common interface (9) is a USB interface, and the output of the controller (8) is connected to the common interface (9) via a USB cable.

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