Backpack-type power supply box for easy battery pack replacement

By introducing a pop-up battery pack mounting plate and locking device into the power supply box, the problems of excessive power supply box size and cumbersome operation caused by horizontal battery pack installation are solved, enabling convenient battery pack replacement and improving user experience.

WO2026103063A1PCT designated stage Publication Date: 2026-05-21SHANGHAI ELECTRIC TOOLS RESEARCH INSTITUTE (GROUP) CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHANGHAI ELECTRIC TOOLS RESEARCH INSTITUTE (GROUP) CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

The existing power supply box uses a horizontal installation and removal method for the battery pack, resulting in an excessively large power supply box and cumbersome operation, which reduces the user experience.

Method used

Design a backpack power box that facilitates battery pack replacement. It features a pop-up battery pack mounting plate and a locking mechanism. The locking mechanism allows for locking and unlocking of the battery pack mounting plate, simplifying the installation and removal process of the battery pack.

Benefits of technology

The overall size of the battery pack has been reduced, simplifying the installation and removal process and improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a backpack-type power supply box for easy battery pack replacement, comprising a power supply box upper cover and a power supply box base, wherein the power supply box upper cover is rotatably connected to the power supply box base; a circuit board and a plurality of battery packs are mounted on the power supply box base; a battery panel is mounted on the power supply box base, the battery panel is provided with a plurality of battery pack mounting positions, and a battery pack mounting plate capable of popping up is provided at each battery pack mounting position; a locking device is provided at each battery pack mounting position, and the corresponding battery pack mounting plate is provided with a locking head corresponding to the locking device. In the present invention, the battery pack mounting plate capable of popping up and the locking device are arranged at each battery pack mounting position, so that the battery pack mounting plate is locked by means of the locking device; and when a battery pack mounting seat is unlocked and pops up, a battery pack can be conveniently mounted or dismounted by means of a pop-up angle, and an unnecessary mounting and dismounting space is also omitted, thereby reducing the whole size of the battery pack to a great extent, and also providing convenience for a user when mounting or dismounting the battery pack.
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Description

A backpack power supply box for easy battery pack replacement Technical Field

[0001] This invention relates to the field of power supply technology, and in particular to a backpack-type power supply box that facilitates battery pack replacement. Background Technology

[0002] Power supply boxes typically consist of multiple battery packs connected in parallel or series, extending the operating time of power tools. However, because existing power supply boxes involve horizontal installation and removal of the battery packs, extra space is required for this process, resulting in excessively large power supply boxes. Furthermore, this horizontal installation and removal process is cumbersome, reducing the user experience. Summary of the Invention

[0003] To address the problems existing in the prior art, at least one embodiment of the present invention provides a backpack power box that facilitates battery pack replacement, which greatly reduces the overall size of the battery pack and provides convenience for users when installing and removing the battery pack.

[0004] This invention provides a backpack-type power supply box for easy battery pack replacement, comprising a power supply box cover and a power supply box base. The power supply box cover is rotatably connected to the power supply box base. The power supply box base is equipped with a circuit board and multiple battery packs. The power supply box base is also equipped with a battery board, which has multiple battery pack mounting positions. Each battery pack mounting position has a pop-up battery pack mounting plate. Each battery pack mounting position is equipped with a locking device, and the battery pack mounting plate has a locking head corresponding to the locking device.

[0005] In some embodiments, the present invention provides a backpack power box that facilitates battery pack replacement. Rotary seats are provided on both sides of the battery pack mounting position, and rotating shafts are provided on both sides of the battery pack mounting plate. Torsion springs are sleeved on the rotating shafts, and the battery pack mounting plate is rotatably connected to the rotating seats through the rotating shafts.

[0006] In some embodiments, the present invention provides a backpack power supply box that facilitates battery pack replacement, wherein the battery pack mounting plate has at least one limiting plate at the end near the rotation axis.

[0007] In some embodiments, the present invention provides a backpack power box that facilitates battery pack replacement, wherein the battery pack mounting plate has a rounded corner surface at the end near the rotating shaft, and a limiting plate is connected to the rounded corner surface.

[0008] In some embodiments, the present invention provides a backpack power supply box that facilitates battery pack replacement, wherein the number of limiting plates is three, and the limiting plates are arranged linearly and evenly.

[0009] In some embodiments, the present invention provides a backpack power supply box that facilitates battery pack replacement, wherein the side of the limiting plate facing the battery pack mounting position is an inclined surface.

[0010] In some embodiments, the present invention provides a backpack power box that facilitates battery pack replacement, wherein the battery pack mounting positions are arranged in a uniform matrix.

[0011] In some embodiments, the present invention provides a backpack power supply box that facilitates battery pack replacement. The power supply box base is provided with a plurality of first mounting posts, and the circuit board is mounted on the power supply box base through the first mounting posts.

[0012] In some embodiments, the present invention provides a backpack power box that facilitates battery pack replacement. The power box base is provided with a plurality of second mounting posts, the height of which is greater than the height of the first mounting post. The battery panel is mounted on the power box base via the second mounting posts, and the battery panel is located above the circuit board.

[0013] In some embodiments, the present invention provides a backpack power supply box that facilitates battery pack replacement, with shoulder straps connected to both sides of the power supply box base.

[0014] As can be seen, the backpack power box of this invention, which facilitates battery pack replacement, is provided with a pop-up battery pack mounting plate and a locking device at the battery pack mounting position. The locking device locks the battery pack mounting plate. When the battery pack mounting plate is unlocked and popped up, the angle of the pop-up allows for convenient installation and removal of the battery pack, saving unnecessary installation and removal space and greatly reducing the overall size of the battery pack. It also provides convenience for users when installing and removing the battery pack. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 shows a schematic diagram of a backpack power box that facilitates battery pack replacement in an embodiment of the present invention;

[0017] Figure 2 shows a side view of a backpack power supply box that facilitates battery pack replacement according to an embodiment of the present invention;

[0018] Figure 3 shows a schematic diagram of the battery pack mounting plate in an embodiment of the present invention;

[0019] Figure 4 shows a schematic diagram of the battery pack mounting position in an embodiment of the present invention;

[0020] Figure 5 shows a schematic diagram of the power supply box being connected to the shoulder strap in an embodiment of the present invention;

[0021] Figure 6 shows a schematic diagram of the battery pack mounting plate not popping up in an embodiment of the present invention;

[0022] Figure 7 shows a schematic diagram of the battery pack mounting plate popping up in an embodiment of the present invention.

[0023] The reference numerals in the accompanying drawings are as follows: Power box cover 1, power box base 2, first mounting post 21, second mounting post 22, circuit board 3, battery pack 4, battery plate 5, battery pack mounting position 6, rotating seat 61, battery pack mounting plate 7, rotating shaft 71, torsion spring 72, limiting plate 73, rounded corner surface 74, locking device 8, locking head 81, shoulder strap 9. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0026] The inventors of this solution discovered that in existing technologies, the battery pack in the power supply box is installed and removed horizontally, requiring additional space for installation and removal, thus resulting in an excessively large power supply box. Furthermore, this horizontal installation and removal process is cumbersome, reducing the user experience. This invention provides the following solution:

[0027] As shown in Figures 1 to 5, this embodiment of the invention provides a backpack-type power supply box for easy battery pack replacement, including a power supply box cover 1 and a power supply box base 2. The power supply box cover 1 is rotatably connected to the power supply box base 2. The power supply box base 2 is equipped with a circuit board 3 and multiple battery packs 4. The power supply box base 2 is also equipped with a battery board 5, which has multiple battery pack mounting positions 6. Each battery pack mounting position 6 has a pop-up battery pack mounting plate 7. Each battery pack mounting position 6 is equipped with a locking device 8, and the battery pack mounting plate 7 has a locking head 81 corresponding to the locking device 8.

[0028] It should be noted that the power supply box base 2 has shoulder straps 9 connected to both sides, the battery pack mounting positions 6 are evenly arranged in a matrix, the circuit board 3 is connected to the power cord, and the locking device 8 is a push-type locking device. When the battery pack 4 needs to be replaced, open the power supply box cover 1, press the battery pack mounting plate 7, and the locking head 81 will unlock and separate from the locking device 8. The battery pack mounting plate 7 will pop up at a certain angle, making it easy to remove the battery pack 4 from the battery pack mounting plate 7. After replacing the battery pack, press the battery pack mounting plate 7, and the locking head 81 will lock into place with the locking device 8, thus completing the replacement of the new battery pack.

[0029] 1. Power box cover, 2. Power box base, 21. First mounting post, 22. Second mounting post, 3. Circuit board, 4. Battery pack, 5. Battery plate, 6. Battery pack mounting position, 61. Rotating seat, 7. Battery pack mounting plate, 71. Rotating shaft, 72. Torsion spring, 73. Limiting plate, 74. Rounded corner surface, 8. Locking device, 81. Locking head, 9. Shoulder strap.

[0030] In some embodiments, rotating seats 61 are provided on both sides of the battery pack mounting position 6, and rotating shafts 71 are provided on both sides of the battery pack mounting plate 7. Torsion springs 72 are sleeved on the rotating shafts 71, and the battery pack mounting plate 7 is rotatably connected to the rotating seats 61 through the rotating shafts 71.

[0031] It should be noted that when the battery pack mounting plate 7 is pressed, the locking head 81 and the locking device 8 are unlocked and separated. Under the force of the torsion spring 72, the battery pack mounting plate 7 is rotated at a certain angle through the rotating shaft 71 and pops open, thus making it convenient for the user to remove the battery pack.

[0032] In some embodiments, at least one limiting plate 73 is provided at the end of the battery pack mounting plate 7 near the rotation shaft 71. Specifically, the side of the limiting plate 73 facing the battery pack mounting position 6 is an inclined surface, which can limit the rotation angle of the battery pack mounting plate 7, so that the battery pack mounting plate 7 rotates 30 degrees when it pops up, achieving the optimal angle for disassembly and installation.

[0033] In some embodiments, the number of limiting plates 73 is three, and the limiting plates 73 are arranged linearly and evenly, thereby better limiting the rotation angle of the battery pack mounting plate 7 and improving the stability of the battery pack mounting plate 7 during rotation.

[0034] In some embodiments, the end of the battery pack mounting plate 7 near the rotation shaft 71 is provided with a rounded corner surface 74, and the limiting plate 73 is connected to the rounded corner surface 74, so that the battery pack mounting plate 7 can rotate more smoothly when it is popped up, thereby improving the stability of the battery pack mounting plate 7 during rotation.

[0035] In some embodiments, the power supply base 2 is provided with a plurality of first mounting posts 21, and the circuit board 3 is mounted on the power supply base 2 via the first mounting posts 21. The power supply base 2 is provided with a plurality of second mounting posts 22, the height of the second mounting posts 22 being greater than the height of the first mounting posts 21. The battery panel 5 is mounted on the power supply base 2 via the second mounting posts 22, and the battery panel 5 is located above the circuit board 3.

[0036] In practice, as shown in Figure 6, when the battery pack 4 needs to be replaced, the power box cover 1 is opened. As shown in Figure 7, after pressing the battery pack mounting plate 7, the locking head 81 and the locking device 8 are unlocked and separated. The battery pack mounting plate 7 pops up at a 30-degree angle, which makes it easy to remove the battery pack 4 from the battery pack mounting plate 7.

[0037] In summary, the embodiments of the present invention provide a backpack power box that facilitates battery pack replacement. A pop-up battery pack mounting plate and a locking device are provided at the battery pack mounting position. The locking device locks the battery pack mounting plate. When the battery pack mounting plate is unlocked and popped up, the angle of the pop-up allows for convenient installation and removal of the battery pack, saving unnecessary installation and removal space and greatly reducing the overall size of the battery pack. It also provides convenience for users when installing and removing the battery pack.

[0038] The above description is merely a specific embodiment of this application, and the scope of protection of this application is not limited thereto. Those skilled in the art can make changes or substitutions within the technical scope disclosed in this application, and all such changes or substitutions should be within the scope of protection of this application.

[0039] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention and form different embodiments.

[0040] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A knapsack power box facilitating battery pack replacement, comprising a power box upper cover (1) and a power box base (2), the power box upper cover (1) being rotatably connected to the power box base (2), the power box base (2) being provided with a circuit board (3) and a plurality of battery packs (4), characterized in that, The power box base (2) is equipped with a battery board (5), the battery board (5) is provided with multiple battery pack mounting positions (6), the battery pack mounting positions (6) are provided with pop-up battery pack mounting plates (7); the battery pack mounting positions (6) are provided with locking devices (8), and the battery pack mounting plates (7) are provided with locking heads (81) corresponding to the locking devices (8).

2. The backpack power box for facilitating battery pack replacement of claim 1, wherein, The battery pack mounting position (6) is provided with rotating seats (61) on both sides, and the battery pack mounting plate (7) is provided with rotating shafts (71) on both sides. A torsion spring (72) is sleeved on the rotating shaft (71), and the battery pack mounting plate (7) is rotatably connected to the rotating seat (61) through the rotating shaft (71).

3. The backpack power box for facilitating battery pack replacement of claim 2, wherein, The battery pack mounting plate (7) has at least one limiting plate (73) at the end near the rotating shaft (71).

4. The backpack power box that facilitates battery pack replacement of claim 3, wherein, The battery pack mounting plate (7) has a rounded corner surface (74) at the end near the rotating shaft (71), and the limiting plate (73) is connected to the rounded corner surface (74).

5. The backpack power box that facilitates battery pack replacement of claim 4, wherein, The number of the limiting plates (73) is three, and the limiting plates (73) are arranged linearly and evenly.

6. The backpack power box that facilitates battery pack replacement of claim 3, wherein, The side of the limiting plate (73) facing the battery pack mounting position (6) is an inclined surface.

7. The backpack power box that facilitates battery pack replacement of claim 1, wherein, The battery pack mounting positions (6) are arranged in a uniform matrix.

8. The backpack power box that facilitates battery pack replacement of claim 1, wherein, The power supply box base (2) is provided with a plurality of first mounting posts (21), and the circuit board (3) is mounted on the power supply box base (2) through the first mounting posts (21).

9. The backpack power box that facilitates battery pack replacement of claim 8, wherein, The power supply box base (2) is provided with a plurality of second mounting posts (22), the height of the second mounting posts (22) is greater than the height of the first mounting post (21); the battery panel (5) is mounted on the power supply box base (2) through the second mounting posts (22), and the battery panel (5) is located above the circuit board (3).

10. The backpack power box that facilitates battery pack replacement of claim 1, wherein, The power supply box base (2) is connected to two sides with shoulder straps (9).