Backpack battery

Abstract

The utility model provides a backpack type battery which comprises a shell and a plurality of battery cells, the shell comprises an inner cavity, the battery cells are arranged in the inner cavity, the shell is made of flexible materials, a plurality of partition plates are arranged on the inner side face of the shell, the inner cavity is divided into a plurality of mounting cavities by the partition plates, the battery cells are arranged in the mounting cavities, and the battery cells are arranged in the mounting cavities. Mounting cavities are formed in the outer shell, the battery cells are arranged in the mounting cavities, the peripheral contours of the battery cells are matched with the mounting cavities, the number of the battery cells is matched with the number of the mounting cavities, and a bending groove sunken towards the direction of the inner cavity is formed in the side, away from the partition plate, of the outer shell. Energy generated by falling and collision can be absorbed to a certain extent, damage to the battery is reduced, and the service life of the battery is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery technology, and in particular relates to a backpack battery. Background Technology

[0002] An outdoor battery pack is a portable energy storage system with a built-in lithium-ion battery, capable of providing power to various devices without an external power source. Outdoor battery packs typically employ a rigid structure to protect the internal battery cells from physical damage, ensuring battery safety and stability.

[0003] However, while the hard-shell design plays a crucial role in protecting the battery, it also presents some inconveniences for users. Firstly, the higher density of the material in the hard-shell can increase the overall weight of the battery pack, affecting portability. This poses a significant challenge for users who need to travel long distances or move frequently. The increased weight not only makes carrying the battery pack more strenuous but may also limit the number of batteries that can be carried, thus impacting its flexibility and practicality in real-world applications.

[0004] Secondly, in the event of a drop or impact, the rigid casing cannot absorb the energy generated during the collision and is easily cracked and damaged. Once the casing cracks, it will not only directly affect the battery performance but may also cause safety problems such as short circuits, overheating, or even fire. Furthermore, damage to the rigid casing often means that the entire battery pack is no longer usable, requiring users to face the challenge of repair or replacement. Because repairing a rigid casing is more difficult, users may need to seek professional repair services, which not only increases the time cost of repair but may also result in higher financial costs. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a backpack battery that is lightweight and easy to carry. It allows the battery to be bent and stretched while maintaining its function, and can absorb the energy generated by drops and impacts to a certain extent, reducing damage to the battery and extending its service life.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A backpack battery includes a casing and battery cells. The casing includes an inner cavity, and the battery cells are disposed in the inner cavity. The casing is made of a flexible material. The inner side of the casing is provided with multiple partitions. The multiple partitions are arranged in a crisscross pattern and divide the inner cavity into multiple mounting cavities. Multiple battery cells are provided. The outer periphery of the battery cells is adapted to the mounting cavities. The number of battery cells is adapted to the number of mounting cavities. The side of the casing away from the partitions is provided with a curved groove that is recessed towards the inner cavity.

[0008] As a further improvement to the above solution, the inner cavity of the outer shell includes 12 mounting cavities, which are arranged in a three-row, four-column manner, and each mounting cavity contains a battery cell.

[0009] As a further improvement to the above solution, the outer shell includes a first outer shell and a second outer shell, the first outer shell and the second outer shell are connected to form an inner cavity, and the first outer shell or the second outer shell is provided with vent holes.

[0010] As a further improvement to the above solution, a waterproof and breathable membrane is provided on the outside of the vent.

[0011] As a further improvement to the above solution, a connecting groove is provided at the edge of the first outer shell, and a plurality of limiting protrusions are provided at the edge of the second outer shell. The limiting protrusions can be inserted into the connecting groove to realize the connection between the first outer shell and the second outer shell.

[0012] As a further improvement to the above solution, the partition includes a first partition and a second partition. The first partition is disposed on the inner side of the first housing, and the second partition is disposed on the inner side of the second housing. The end of the first partition is provided with a slot, and the end of the second partition is provided with a block. The slot and the block are adapted to each other.

[0013] As a further improvement to the above solution, the battery cell is connected to the inner side of the casing by an adhesive.

[0014] As a further improvement to the above solution, a connector mounting area is provided in the inner cavity, and a charging and discharging interface is provided in the connector mounting area for connecting an external connector.

[0015] As a further improvement to the above solution, a power display area is provided in the inner cavity, and a display screen is provided in the power display area. The display screen is exposed on the outer surface of the outer shell and is used to display the battery power.

[0016] As a further improvement to the above solution, a switch is provided on the display screen, which is used to control the display screen to turn on and off.

[0017] The beneficial effects of this invention are:

[0018] This utility model provides a backpack battery, which includes a shell and multiple battery cells disposed inside the shell. Adjacent battery cells are separated by a partition, and the shell is provided with bending grooves corresponding to the positions of the partitions. This backpack battery is lighter and easier to carry, and allows the battery to be bent and stretched while maintaining its function. It can absorb the energy generated by drops and impacts to a certain extent, reduce damage to the battery, and extend the battery's service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a backpack battery according to the present invention;

[0020] Figure 2 This is another schematic diagram of a backpack battery according to this utility model;

[0021] Figure 3 This is an exploded view of a backpack battery according to this utility model;

[0022] Figure 4 This is another exploded view of a backpack battery according to this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Outer shell; 11. Mounting cavity; 12. Bending groove; 121. First bending groove; 122. Second bending groove; 13. First outer shell; 131. Connecting groove; 132. First partition; 133. Slot; 14. Second outer shell; 141. Limiting protrusion; 142. Second partition; 143. Locking block; 15. Vent hole; 16. Connector mounting area; 161. Charging and discharging interface; 17. Power display area; 171. Display screen; 172. Switch; 2. Battery cell. Detailed Implementation

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In some descriptions of utility models, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Reference Figures 1 to 4 This embodiment provides a backpack battery, including a shell 1 and a battery cell 2. The shell 1 includes an inner cavity, and the battery cell 2 is disposed in the inner cavity. The shell 1 is made of a flexible material.

[0030] The inner side of the outer shell 1 is provided with multiple partitions, which are arranged in a crisscross pattern to divide the inner cavity into multiple mounting cavities 11. Multiple battery cells 2 are provided, and the outer periphery of the battery cells 2 is adapted to the mounting cavity 11. The number of battery cells 2 is adapted to the number of mounting cavities 11. The outer shell 1 is provided with a curved groove 12 that is recessed toward the inner cavity on the side away from the partitions.

[0031] In this embodiment, the outer casing 1 is made of silicone. Compared with conventional rigid materials, the silicone outer casing 1 is lighter, which helps to reduce the overall weight of the battery and improve portability. In addition, since silicone has a certain degree of flexibility, combined with the bending groove 12 provided on the outer casing 1, the battery can be bent and stretched while maintaining its function.

[0032] For ease of description, the bending groove located at the top of the outer casing 1 is designated as the first bending groove 121, and the bending groove located at the bottom of the outer casing 1 is designated as the second bending groove 122. The user can control the outer casing 1 to bend downwards until the portions of the outer casing 1 located on both sides of the second bending groove 122 abut against each other. Simultaneously, the portions of the outer casing 1 located on both sides of the first bending groove 121 bend in a direction away from each other. Since the multiple battery cells 2 are separated by the partition, the battery cells 2 are not affected when the outer casing 1 is bent.

[0033] Furthermore, in this embodiment, the inner cavity of the outer casing 1 includes 12 mounting cavities 11, arranged in a three-row, four-column configuration. Each mounting cavity 11 contains one battery cell 2. The battery cells 2 in the 12 mounting cavities 11 are arranged in a 6P4S configuration, meaning there are 6 battery packs (or branches) connected in parallel, and each battery pack has 4 battery cells 2 connected in series. This configuration can provide higher total capacity and voltage.

[0034] In this embodiment, the battery cell 2 located in each of the mounting cavities 11 is provided with two layers.

[0035] Furthermore, the outer casing 1 includes a first outer casing 13 and a second outer casing 14. The first outer casing 13 and the second outer casing 14 are connected to form an inner cavity. A vent hole 15 is provided on the first outer casing 13 or the second outer casing 14. In this embodiment, the vent hole 15 is provided on the second outer casing 14.

[0036] It is understandable that a small amount of gas will be generated during battery operation. If the gas cannot be released and continues to accumulate, it will cause the battery to bulge and its performance to degrade. In this embodiment, by providing a vent 15, the gas can be discharged to the outside of the outer casing 1 through the waterproof vent 15, preventing the battery from bulging and protecting the battery's operating performance from being affected.

[0037] To further protect the battery, this embodiment includes a waterproof and breathable membrane (not shown) on the outside of the vent 15. The membrane's main working principle is based on its unique microporous structure. These micropores are small enough to prevent the penetration of liquid water molecules, yet large enough to allow gas molecules to pass through. By providing this waterproof and breathable membrane, this embodiment prevents moisture from entering the casing 1 through the vent 15, protecting the battery pack from moisture and corrosion. Simultaneously, the membrane also blocks dust and other fine particles from entering, keeping the battery's interior clean and preventing problems such as poor heat dissipation or short circuits caused by dust accumulation.

[0038] In this embodiment, a connecting groove 131 is provided at the edge of the first outer shell 13, and a plurality of limiting protrusions 141 are provided at the edge of the second outer shell 14. The limiting protrusions 141 can be inserted into the connecting groove 131 to realize the connection between the first outer shell 13 and the second outer shell 14.

[0039] Furthermore, the partition includes a first partition 132 and a second partition 142. The first partition 132 is disposed on the inner side of the first outer shell 13, and the second partition 142 is disposed on the inner side of the second outer shell 14. The end of the first partition 132 is provided with a slot 133, and the end of the second partition 142 is provided with a locking block 143. The slot 133 and the locking block 143 are adapted to each other. The locking block 143 can be inserted into the slot 133 to strengthen the connection between the first outer shell 13 and the second outer shell 14.

[0040] Furthermore, the battery cell 2 is connected to the inner surface of the outer casing 1 using an adhesive. In this embodiment, double-sided tape is selected as the adhesive. Double-sided tape is pasted on each side of the battery cell 2, and then the other side of the double-sided tape is pasted into the mounting cavity 11 to achieve a firm connection between the battery cell 2 and the mounting cavity 11. In another embodiment, glue can be selected as the adhesive.

[0041] Preferably, the inner cavity of this embodiment is further provided with a connector mounting area 16, and the connector mounting area 16 is provided with a charging and discharging interface 161. The charging and discharging interface 161 can realize the corresponding charging and discharging function by connecting to an external connector.

[0042] Preferably, the battery in this embodiment also includes a power display area 17, which is equipped with a display screen 171. The display screen 171 is exposed on the outer surface of the housing 1 and is used to display the battery power level. The principle of the battery power display is well known to those skilled in the art and will not be described in detail here.

[0043] Preferably, the display screen 171 is provided with a switch 172, which is used to control the display screen 171 to display and turn it off. The control principle of the switch 172 of the display screen 171 is well known to those skilled in the art and will not be described in detail here.

[0044] This utility model provides a backpack battery, which includes a shell 1 and a plurality of cells 2 disposed inside the shell 1. Adjacent cells 2 are separated by a partition, and the shell 1 is provided with a bending groove 12 at the position corresponding to the partition. This backpack battery is lightweight and easy to carry, and allows the battery to be bent and stretched while maintaining its function. It can absorb the energy generated by drops and impacts to a certain extent, reduce damage to the battery, and extend the battery's service life.

[0045] It is understood that those skilled in the art can combine various implementation methods in the above embodiments under the guidance of the above examples to obtain technical solutions with multiple implementation methods.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A backpack battery, characterized in that, The device includes a housing and a battery cell. The housing includes an inner cavity, and the battery cell is disposed in the inner cavity. The housing is made of a flexible material. The inner side of the housing is provided with multiple partitions. The multiple partitions are arranged in a crisscross pattern and divide the inner cavity into multiple mounting cavities. Multiple battery cells are provided. The outer periphery of the battery cell is adapted to the mounting cavity. The number of battery cells is adapted to the number of mounting cavities. The side of the housing away from the partitions is provided with a curved groove that is recessed towards the inner cavity.

2. The backpack battery according to claim 1, characterized in that, The inner cavity of the housing includes 12 mounting cavities, which are arranged in a three-row, four-column configuration, with each mounting cavity containing a battery cell.

3. A backpack battery according to claim 1, characterized in that, The outer shell includes a first outer shell and a second outer shell. The first outer shell and the second outer shell are connected to form an inner cavity. The first outer shell or the second outer shell is provided with ventilation holes.

4. A backpack battery according to claim 3, characterized in that, A waterproof and breathable membrane is provided on the outside of the vent.

5. A backpack battery according to claim 3, characterized in that, The first outer shell has a connecting groove at its edge, and the second outer shell has multiple limiting protrusions at its edge. The limiting protrusions can be inserted into the connecting groove to connect the first outer shell and the second outer shell.

6. A backpack battery according to claim 3, characterized in that, The partition includes a first partition and a second partition. The first partition is disposed on the inner side of the first housing, and the second partition is disposed on the inner side of the second housing. The end of the first partition is provided with a slot, and the end of the second partition is provided with a block. The slot and the block are adapted to each other.

7. A backpack battery according to claim 1, characterized in that, The battery cell is connected to the inner side of the casing by an adhesive.

8. A backpack battery according to claim 1, characterized in that, The inner cavity is provided with a connector mounting area, and the connector mounting area is provided with a charging and discharging interface, which is used to connect an external connector.

9. A backpack battery according to claim 1, characterized in that, The outer shell is made of silicone.

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