Knapsack with quick charging function

Abstract

The invention relates to the technical field of knapsacks, and discloses a quick-charging knapsack which comprises a knapsack body, a junction box and an output end box outside the knapsack body. The photovoltaic panel is arranged on the front face of the backpack body, the power is 20 W, efficient BC battery pieces are adopted, and the photoelectric conversion efficiency is optimized. The junction box is used for receiving electric energy converted by the photovoltaic panel, and the junction box is located on the back face of the photovoltaic panel and located in the first cavity of the backpack body; a battery management module, a voltage-stabilized source module, a fast charging module and two USB output ports are integrated in the junction box, so that charging safety is ensured, and fast charging is supported. The design of the output end box outside the bag body is convenient for a user to directly use solar energy for charging outside, and the outdoor instant charging requirement is met. In addition, the battery management module can monitor the condition of the battery in real time, protects the charging body from being damaged, and prolongs the service life of equipment. The overall design fully considers user requirements, and the practicability and portability of the backpack are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of backpacks, and in particular relates to a backpack with fast charging. Background Art

[0002] Backpacks are products that people often use when going out. Backpacks can store clothes or electronic products, such as mobile phones or tablets, which brings great convenience to people whether they are going out for short or long distances. With the development of technology, people's demand for mobile electronic devices is growing, and the demand for charging devices when going out is also increasing. Traditional backpack designs are usually only used to carry items, and in environments where there is no power supply, such as outdoors, when mobile devices run out of power, users often face the dilemma of not being able to charge in time. In order to solve this problem, backpacks with solar panels have appeared on the market, which can charge mobile devices through solar energy.

[0003] However, existing solar backpacks generally have problems such as slow charging speed and low charging efficiency. The solar panels equipped with existing backpacks usually have low power and are not equipped with fast charging modules, resulting in slow charging speed and unable to meet the user's demand for fast charging. Especially in scenarios where instant charging is required, such as outdoors, slow charging speed has become the main factor limiting the user experience. Existing solar panels mostly use traditional solar cells, which have low photoelectric conversion efficiency, resulting in a long charging time. In addition, the area of ​​solar panels receiving solar energy is limited, further affecting the charging efficiency. During the charging process, backpacks in the prior art lack an effective battery management module and cannot monitor the battery status of the charging body (such as a mobile power supply or a mobile terminal) in real time. Once the charging body is abnormal, it is impossible to stop charging in time, which may cause damage to the battery and affect the service life of the device. The design of existing backpacks mainly focuses on the solar charging function, but ignores the need for users to charge multiple devices at the same time during use. In addition, existing backpacks usually do not have a waterproof function, which makes them unable to be used normally in rainy or humid environments.

[0004] In view of this, a backpack with a fast charging function is proposed, which has improvements in charging speed, charging efficiency, safety and functionality, and can better meet the needs of users in actual usage scenarios. Summary of the invention

[0005] The present invention aims to solve the technical problems of slow charging speed, low charging efficiency, and lack of effective battery management and waterproof design in the above-mentioned prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A backpack with fast charging, comprising a backpack body, a junction box and an output terminal box outside the backpack body;

[0008] A window is provided on the front of the backpack body, and a photovoltaic panel for converting solar energy into electrical energy is fixed in the window; the photovoltaic panel has a power of 20W, an operating voltage of 6V, and a BC battery is used as the battery cell; the isolation layer in the backpack body divides the internal space of the backpack body into a first chamber and a second chamber;

[0009] The junction box is used to receive the electric energy converted by the photovoltaic panel. The junction box is located on the back of the photovoltaic panel and in the first chamber of the backpack body. The junction box integrates a battery management module, a voltage-stabilizing power supply module, a fast charging module and a USB output port. The USB output port includes a USB1 output port and a USB2 output port.

[0010] The output terminal box outside the bag is located at the lower edge of the isolation layer and runs through the backpack body. The input connection end of the output terminal box outside the bag is electrically connected to the USB output port of the junction box; the output connection end of the output terminal box outside the bag is electrically connected to the mobile terminal or mobile power supply.

[0011] The fast charging module can significantly increase the charging speed, allowing users to quickly recharge mobile devices in a short time to meet the needs of instant charging outdoors. The use of 20W photovoltaic panels and BC cells improves the photoelectric conversion efficiency, allowing the backpack to charge devices more efficiently under the sun. The battery management module can monitor the battery status in real time, stop abnormal charging in time, and protect the charging body from damage, thereby extending the service life of the device. The backpack design takes into account the user's need to charge multiple devices at the same time, and sets multiple USB output ports to improve practicality.

[0012] As a preference, the backpack body is provided with a shoulder strap on the back and a handle on the top. It provides different carrying methods, increases the portability of the backpack, and is suitable for different usage scenarios.

[0013] As a preferred embodiment, the output terminal box outside the backpack body is covered and hidden by a waterproof cloth on the backpack body, thereby protecting the output port from rainwater intrusion, so that the backpack can be used normally in bad weather.

[0014] Preferably, the battery management module is used to identify whether all USB output ports are connected to a mobile power source or a mobile terminal before charging, thereby ensuring that charging starts only after the device is connected, thus avoiding ineffective power consumption and potential safety risks.

[0015] Preferably, the voltage-stabilizing power supply module is used to control the voltage matching the charging body to charge the charging body, so as to prevent the charging body from affecting the battery performance due to the high or low charging voltage. This ensures that the charging body is charged at a stable voltage, avoiding damage to the battery caused by overcharging or unstable charging voltage.

[0016] Preferably, the fast charging module is used to identify the fast charging protocol supported by the power-consuming device at the output end, thereby supporting the fast charging protocols of various devices and improving the charging experience.

[0017] Preferably, the photovoltaic panel converts solar energy into electrical energy and provides it to the junction box. The junction box receives the electrical energy converted by the photovoltaic panel and transmits it to the battery management module, the voltage-stabilizing power supply module and the fast-charging module for processing. The battery management module identifies whether the USB output port is connected to a mobile power supply or a mobile terminal before charging, and monitors the battery status of the charging body during the charging process. The voltage-stabilizing power supply module controls the output voltage to ensure that the charging body is charged at a suitable voltage to avoid excessively high or low voltage affecting battery performance. The fast-charging module identifies the fast-charging protocol supported by the power-consuming device at the output end to realize the fast-charging function. Support for fast-charging protocols of various devices is achieved, improving the charging experience.

[0018] Preferably, two zippers are provided on the backpack body to close or open the first chamber and the second chamber, which provides better internal space management, and the user can separate items as needed to keep the interior of the backpack neat and tidy.

[0019] Compared with the prior art, the technical effects and advantages of the present invention are:

[0020] The backpack with fast charging uses a photovoltaic panel made of BC cells, with the light-absorbing side facing forward. This design increases the effective power generation area and improves the photoelectric conversion efficiency. The positive and negative electrodes of the BC cells are arranged crosswise on the back, without any metal electrode blocking, which further improves the power generation efficiency.

[0021] The backpack integrates a battery management module, a voltage-stabilizing power supply module, a fast charging module and a USB output port, which can effectively manage the battery charging process, ensure charging safety, and support multiple fast charging protocols through the fast charging module to increase the charging speed.

[0022] The backpack is designed with a variety of usage scenarios in mind. For example, the waterproof zipper design ensures its use in bad weather, while the photovoltaic panel's ability to directly charge external devices broadens its usage scenarios.

[0023] The battery management module monitors the charging body before and after charging. If there is any battery abnormality, charging will be stopped immediately to ensure the safety of the charging process. The combination of the fast charging module and the battery management module enables the backpack to charge quickly according to the needs of the charging body, greatly reducing the charging time and improving the user experience. The backpack uses solar energy to convert electricity, providing an environmentally friendly and efficient energy conversion method, which is conducive to energy conservation, emission reduction and sustainable development.

[0024] In general, this backpack combines the innovative technologies of solar power generation and mobile power management. It not only provides an efficient and environmentally friendly energy conversion method, but also improves the efficiency and safety of charging through intelligent management. It has high practicality and market potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a side sectional view of the present invention;

[0026] Figure 2 It is a front view of the present invention;

[0027] Figure 3 It is a connection relationship diagram of the present invention.

[0028] In the figure: 1. Backpack body; 2. Window; 3. Photovoltaic panel; 4. Isolation layer; 5. First chamber; 6. Second chamber; 7. Junction box; 8. Battery management module; 9. Voltage-stabilized power supply module; 10. Fast charging module; 11. USB output port; 12. Shoulder strap; 13. Handle; 14. Zipper; 15. Output terminal box outside the bag. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The following is combined with Figure 1-3 To further explain this application in detail,

[0031] The embodiment of the present application discloses a backpack with fast charging, comprising a backpack body 1, a shoulder strap 12 is provided on the back of the backpack body 1 and a handle 13 is provided on the top, a window 2 is provided on the front of the backpack body 1, and a photovoltaic panel 3 for converting solar energy into electrical energy is fixedly covered in the window 2; the light absorbing surface of the photovoltaic panel 3 faces the front of the backpack;

[0032] The power of photovoltaic panel 3 is 20W, and the optimal working voltage is 6V. The battery cells in photovoltaic panel 3 use BC batteries. There is no grid line electrode on the front of the BC battery, and the positive and negative electrodes are arranged crosswise on the back. There are only anti-reflection layer and passivation layer on the front surface. The PN junction and metal contact are both on the back of the battery. There is no metal electrode blocking the front, which increases the effective power generation area and improves the photoelectric conversion efficiency.

[0033] The photovoltaic panel 3 using BC cells has the light-absorbing surface facing forward, which increases the effective power generation area and improves the photoelectric conversion efficiency. The positive and negative electrodes of the BC cells are arranged crosswise on the back, without the obstruction of metal electrodes, which further improves the power generation efficiency.

[0034] The inner space of the backpack body 1 is divided into a first chamber 5 located on the outside and a second chamber 6 located on the inside by an isolation layer 4. The first chamber 5 and the second chamber 6 are respectively provided with zippers 14. The zippers 14 are used to close or open to take out or put in items. The zippers 14 are waterproof zippers 14, which effectively prevent water from entering the chambers.

[0035] The interior of the backpack is divided into a first chamber 5 and a second chamber 6 by an isolation layer 4, which improves the efficiency of space utilization, and the design of the waterproof zipper 14 effectively prevents moisture from entering the chamber, thereby protecting the items in the backpack.

[0036] A junction box 7 electrically connected to the photovoltaic panel 3 is provided in the first chamber 5 and on the back of the photovoltaic panel 3; the junction box 7 is used to receive the electric energy converted by the photovoltaic panel 3;

[0037] The junction box 7 integrates a battery management module 8, a voltage-stabilizing power supply module 9, a fast charging module 10 and a USB output port 11, and the USB output port 11 includes a USB1 output port and a USB2 output port;

[0038] The battery management module 8 is used to identify whether all USB output ports 11 are connected to a mobile power supply or a mobile terminal before charging; when it is identified that a mobile power supply or a mobile terminal is in a transfer state, a self-check of the charging circuit is performed, and the voltage-stabilizing power supply module 9 is used to control the voltage matching the charging body to charge the charging body to prevent the charging body from affecting the battery performance due to the high or low charging voltage; the fast charging module 10 is used to identify the fast charging protocol supported by the output end power device; the fast charging protocol identification module supports the identification of DCP, Qualcomm QC2.0, Qualcomm QC3.0, MTK PE1.1, MTK PE2.0, Huawei FCP, Huawei SCP, Samsung AFC and Spreadtrum SFCP fast charging protocols.

[0039] During charging, the battery management module 8 detects the battery status of the charging object (mobile power supply or mobile terminal). When an abnormality occurs in the battery of the charging object, the charging is automatically stopped. When the charging object reaches the charging capacity, the charging is automatically stopped.

[0040] The USB1 output port and the USB2 output port can be connected to two mobile terminals or mobile power supplies for charging at the same time; the USB1 output port can be used to charge the mobile power supply, and the USB2 output port can be used to charge the mobile terminal; the USB1 output port can be used to charge the mobile terminal, and the USB2 output port can be used to charge the mobile power supply; the USB1 output port can also be connected to the external wiring box 7 of the package, and the USB2 output port can be connected to the mobile terminal or mobile power supply for charging;

[0041] The external output terminal box 15 is located at the lower edge of the isolation layer 4 and is arranged through the backpack body 1. The input connection end of the external output terminal box 15 is electrically connected to the USB output port 11 of the junction box 7; the output connection end of the external output terminal box 15 is electrically connected to the mobile terminal or mobile power supply.

[0042] The junction box 7 integrates a battery management module 8, a voltage-stabilizing power supply module 9, a fast charging module 10 and a USB output port 11, which can effectively manage the battery charging process, ensure charging safety, and support multiple fast charging protocols through the fast charging module 10 to increase the charging speed.

[0043] The design of the USB output port 11 allows two mobile terminals or mobile power supplies to be charged simultaneously or separately, which improves the practicality and convenience of the backpack. The design of the external junction box 7 allows the photovoltaic panel 3 to directly charge external devices, broadening the usage scenarios. The battery management module 8 monitors the charging body before and after charging. If there is a battery abnormality, charging will be stopped immediately to ensure the safety of the charging process. The combination of the fast charging module 10 and the battery management module 8 enables the backpack to charge quickly according to the needs of the charging body, greatly reducing the charging time and improving the user experience.

[0044] Before charging: the photovoltaic panel 3 receives solar energy and starts converting electrical energy. The battery management module 8 detects whether the USB port is connected to a mobile power source or a mobile terminal.

[0045] During charging: The junction box 7 receives the power from the photovoltaic panel 3 and outputs a stable voltage after being processed by the voltage-stabilizing power module 9. The fast charging module 10 identifies the fast charging protocol supported by the charging body and implements the fast charging function. The battery management module 8 monitors the battery status of the charging body and controls the charging to stop if there is any abnormality.

[0046] Charging end: When the charging body is fully charged or reaches the set charging amount, the battery management module 8 controls to stop charging. The user can remove the mobile terminal or mobile power supply from the output terminal box 15 outside the package.

[0047] The backpack with fast charging is provided with a fast charging module 10. When the charging body (mobile terminal or mobile power supply) has a fast charging function, the fast charging function can be realized, which greatly reduces the charging time. At the same time, a battery management mode is added to monitor and manage the charging body from before charging to the completion of charging. If there is an abnormality in the battery, control is performed to stop the charging to ensure the safe use of the battery. A photovoltaic panel 3 with BC battery cells is used to increase the photoelectric energy conversion speed, which directly improves the charging speed.

[0048] In general, this backpack combines solar power generation with mobile power management, which not only provides an environmentally friendly and efficient energy conversion method, but also improves the efficiency and safety of charging through intelligent management. It is very suitable for outdoor activities, travel and daily use, and has great market potential and user value.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A backpack with fast charging, characterized in that: include: A backpack body (1), wherein a window (2) is provided on the front of the backpack body (1), and a photovoltaic panel (3) for converting solar energy into electrical energy is fixedly covered in the window (2); the photovoltaic panel (3) has a power of 20W, an operating voltage of 6V, and a battery cell using a BC battery; an isolation layer (4) in the backpack body (1) divides the internal space of the backpack body (1) into a first chamber (5) and a second chamber (6); A junction box (7), the junction box (7) is used to receive electric energy converted by the photovoltaic panel (3), the junction box (7) is located on the back of the photovoltaic panel (3) and in the first chamber (5) of the backpack body (1); a battery management module (8), a voltage-stabilizing power supply module (9), a fast charging module (10) and a USB output port (11) are integrated in the junction box (7), and the USB output port (11) includes a USB1 output port and a USB2 output port; An external output terminal box (15) outside the bag, the external output terminal box (15) being located at the lower edge of the isolation layer (4) and penetrating the backpack body (1), and the input connection end of the external output terminal box (15) being electrically connected to the USB output port (11) of the junction box (7); The output connection end of the output terminal box (15) outside the enclosure is electrically connected to the mobile terminal or the mobile power source.

2. A backpack with fast charging according to claim 1, characterized in that: The backpack body (1) is provided with a shoulder strap (12) on the back and a handle (13) on the top.

3. A backpack with fast charging according to claim 1, characterized in that: The output terminal box (15) outside the backpack body is covered and hidden by a waterproof cloth on the backpack body (1).

4. A backpack with fast charging according to claim 1, characterized in that: Before charging, the battery management module (8) is used to identify whether all USB output ports (11) are connected to a mobile power source or a mobile terminal.

5. A backpack with fast charging according to claim 4, characterized in that: The voltage-stabilizing power supply module (9) is used to control the voltage matching the charging body to charge the charging body, thereby preventing the charging body from affecting the battery performance due to the high or low charging voltage.

6. A backpack with fast charging according to claim 5, characterized in that: The fast charging module (10) is used to identify the fast charging protocol supported by the output-end electrical device.

7. A backpack with fast charging according to claim 6, characterized in that: The photovoltaic panel (3) converts solar energy into electric energy and supplies it to the junction box (7). The junction box (7) receives the electric energy converted by the photovoltaic panel (3) and transmits it to the battery management module (8), the voltage-stabilizing power supply module (9) and the fast charging module (10) for processing. Before charging, the battery management module (8) identifies whether the USB output port (11) is connected to a mobile power supply or a mobile terminal, and monitors the battery status of the charging body during the charging process. The voltage-stabilizing power supply module (9) controls the output voltage to ensure that the charging body is charged at an appropriate voltage to avoid excessively high or low voltage affecting battery performance. The fast charging module (10) identifies the fast charging protocol supported by the output-end power-consuming device to realize the fast charging function.

8. The backpack with fast charging according to claim 1, characterized in that: The backpack body (1) is provided with two zippers (14) for closing or opening the first chamber (5) and the second chamber (6).

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