Lithium battery pack convenient to disassemble and assemble

Abstract

The utility model discloses a lithium battery pack convenient to disassemble and assemble, which belongs to the technical field of lithium batteries, and comprises a battery box, a placing groove is arranged in the battery box, a battery outer frame for storing a lithium battery body is arranged in the placing groove, and the battery outer frame comprises a frame body and a limiting baffle plate; the limiting baffle horizontally extending towards the outer side is arranged on the edge of the opening of the frame body, and lifting rings are arranged at the four corners of the limiting baffle correspondingly. Clamping mechanisms and a buffer block II are arranged in the frame body, the number of the clamping mechanisms is two, and the two clamping mechanisms are mounted on the adjacent inner walls of the frame body; the second buffer block is movably placed on the side, opposite to one clamping mechanism, of the inner wall of the frame body. The lithium battery body can be conveniently disassembled and assembled in the battery box through the four lifting rings, and the frame body can be conveniently arranged in the placing groove through the transition chamfers; the buffer block II occupies the space in the frame body, and when the lithium battery body is taken out from the frame body, the buffer block II can be taken out firstly to provide an operation space for later operation.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery technology, specifically a lithium battery pack that is easy to install and disassemble. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. Lithium-ion batteries can be broadly classified into two categories: lithium metal batteries and lithium-ion batteries. The working principle of lithium-ion batteries involves the migration of lithium ions and the flow of electrons. During charging, lithium ions are released from the positive electrode material, enter the electrolyte, and then migrate to the negative electrode, where they combine with electrons to form lithium compounds. The discharge process is the reverse: lithium ions are released from the negative electrode, pass through the electrolyte, and return to the positive electrode, while electrons flow from the negative electrode to the positive electrode through an external circuit, generating current. Due to their high energy density, long lifespan, and environmental friendliness, lithium-ion batteries are widely used in various fields. Major application areas include mobile phones, tablets, laptops, wearable devices, electric bicycles, electric scooters, electric balance scooters, electric cars, electric ships, and electric aircraft.

[0003] Lithium batteries are usually used in multiple sets and need to be placed in a dedicated space to provide safe use. However, the disassembly and assembly of lithium batteries in a safe use space is inconvenient, especially since battery boxes are generally only suitable for a single type of lithium battery and may not be suitable when encountering other types of lithium batteries. Utility Model Content

[0004] To address the problems of inconvenient operation and incompatibility with other specifications and models of lithium batteries in existing battery packs, this invention provides a lithium battery pack that is easy to install and disassemble.

[0005] This utility model is achieved through the following technical solution:

[0006] A lithium battery pack that is easy to assemble and disassemble includes a battery case with a placement slot inside. The placement slot contains an outer battery frame for storing lithium battery bodies. The outer battery frame includes a frame body and a limiting baffle. The limiting baffle extends horizontally outward from the edge of the open portion of the frame body, and each of the four corners of the limiting baffle has a lifting ring. The frame body contains a clamping mechanism and a second buffer block. Two clamping mechanisms are provided, and the two clamping mechanisms are installed on adjacent inner walls of the frame body. After adjustment, the clamping mechanisms push the lithium battery bodies to be closely arranged. The second buffer block is movably placed on one side of the inner wall of the frame body opposite to one of the clamping mechanisms.

[0007] Four lifting rings facilitate the installation and removal of the battery outer frame pre-installed with the lithium battery body within the battery box; the second buffer block occupies part of the space within the frame body, which helps to remove the lithium battery body from the frame body by first removing the second buffer block, thus providing operating space for the subsequent installation and removal of the lithium battery body; the hollow structure of the frame body itself reduces its weight and allows for the installation and removal of the lithium battery body within it through the gaps; the adjacent clamping mechanisms can clamp and fix lithium battery bodies of different specifications.

[0008] A further improvement of this invention is that the upper edge of the placement slot is provided with a limiting step on the battery box, and the connection between the limiting step and the placement slot is provided with a transition chamfer to facilitate the placement of the frame body. The transition chamfer provides guidance for the installation of the frame body into the placement slot, which helps to quickly install the battery outer frame containing the lithium battery body into the placement slot.

[0009] A further improvement of this invention is that each of the four corners of the aforementioned limiting step is provided with a buffer block that can abut against the bottom surface of the limiting baffle. This helps to reduce the impact of the limiting baffle on the limiting step.

[0010] A further improvement of this invention is that a buffer pad is provided on the inner wall of the frame body. This helps to prevent wear on the lithium battery body and provides shock absorption and safety protection.

[0011] A further improvement of this utility model is that the clamping mechanism includes a support frame mounted on the frame body. A guide screw is rotatably mounted on the support frame. The guide screw is horizontally positioned and has two threaded sections with opposite directions of rotation. Each of the two threaded sections is threadedly connected to a guide block located within the support frame and in contact with its inner wall. The two guide blocks are connected to the same pressing plate via movable connecting arms, with both ends of the movable connecting arms hinged to the guide blocks and the pressing plate, respectively. Rotating the guide screw causes the threaded sections with opposite directions of rotation to move the two guide blocks towards each other in contact with the support frame, thereby enabling the pressing plate to be ejected or retracted. This operation achieves a compact adaptation for placing lithium battery bodies of different specifications within the frame body.

[0012] A further improvement of this utility model is that the two movable connecting arms are arranged symmetrically.

[0013] A further improvement of this utility model is that one end of the guide screw is provided with an operating notch; the cross-section of the operating notch is an internal hexagonal structure, which allows for quick operation of the rotation adjustment of the guide screw with the aid of a hexagonal wrench.

[0014] A further improvement of this invention is that the two operating notches on the aforementioned two guide screws are arranged adjacent to each other. This optimized layout allows for quick adjustment of the two guide screws.

[0015] A further improvement of this utility model is that the frame body is provided with an operating notch one for easy rotation and adjustment of the operating notch two; the operating notch one is located at the corner of the side wall of the frame body. A hexagonal wrench can pass through the operating notch one to adjust both operating notches two, thereby enabling adjustment of the two guide screws from the side of the frame body.

[0016] A further improvement of this invention is that a buffer pad three is provided on the side of the pressing plate facing away from the support frame. This helps to improve the smoothness of the contact between the pressing plate and the lithium battery body, thereby creating a shock-absorbing effect during the pressing of the lithium battery body.

[0017] As can be seen from the above technical solutions, the beneficial effects of this utility model are: the four lifting rings facilitate the disassembly and retrieval of the battery outer frame pre-installed with the lithium battery body inside the battery box; the buffer block two occupies part of the space inside the frame body, which helps to remove the lithium battery body from the frame body by first removing the buffer block two, thereby providing operating space for the subsequent disassembly and retrieval of the lithium battery body; the hollow structure of the frame body itself reduces its own weight and allows for auxiliary operation of disassembly and retrieval of the lithium battery body inside through the gaps; the adjacent clamping mechanisms can clamp and fix lithium battery bodies of different specifications. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first structural schematic diagram of a specific embodiment of the present utility model.

[0020] Figure 2 This is a second structural schematic diagram of a specific embodiment of the present utility model.

[0021] Figure 3 This is a first structural schematic diagram of the battery box and supporting frame according to a specific embodiment of the present utility model.

[0022] Figure 4 This is a second structural schematic diagram of the battery box and supporting frame according to a specific embodiment of the present utility model.

[0023] Figure 5This is a schematic diagram of the battery box structure according to a specific embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the supporting frame structure of a specific embodiment of the present utility model.

[0025] Figure 7 This is a schematic diagram of the first structure of the clamping mechanism according to a specific embodiment of the present utility model.

[0026] Figure 8 This is a partial schematic diagram showing the clamping mechanism in use according to a specific embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the end structure of the guide screw in a specific embodiment of this utility model.

[0028] In the attached diagram: 10. Battery box; 11. Placement slot; 12. Limiting step; 13. Buffer block one; 14. Transition chamfer; 20. Battery outer frame; 21. Frame body; 22. Limiting baffle; 23. Lifting ring; 24. Operating notch one; 25. Buffer pad one; 30. Clamping mechanism; 31. Support frame; 32. Guide screw; 321. Operating notch two; 33. Guide block; 34. Movable connecting arm; 35. Pressing plate; 40. Lithium battery body; 50. Buffer block two. Detailed Implementation

[0029] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0030] Example 1:

[0031] like Figures 1-6 As shown, a lithium battery pack that is easy to assemble and disassemble includes a battery case 10. The battery case 10 has a placement slot 11 inside, and a battery outer frame 20 for storing lithium battery bodies 40 is provided in the placement slot 11. The battery outer frame 20 includes a frame body 21 and a limiting baffle 22. The limiting baffle 22 extends horizontally outward along the edge of the open side of the frame body 21. Each of the four corners of the limiting baffle 22 is provided with a lifting ring 23. The four lifting rings 23 facilitate the assembly, disassembly, and retrieval of the battery outer frame 20 pre-installed with lithium battery bodies 40 in the battery case 10.

[0032] The upper edge of the placement slot 11 is provided with a limiting step 12 on the battery box 10, and the connection between the limiting step 12 and the placement slot 11 is provided with a transition chamfer 14 to facilitate the placement of the frame body 21. The transition chamfer 14 provides guidance for the installation of the frame body 21 into the placement slot 11, which helps to quickly install the battery outer frame 20 containing the lithium battery body 40 into the placement slot 11.

[0033] The four corners of the limiting step 12 are respectively provided with buffer blocks 13 that can abut against the bottom surface of the limiting baffle 22. This helps to reduce the impact of the limiting baffle 22 on the limiting step 12. The inner bottom surface of the placement groove 11 can also be covered with buffer pads 2, which can be used to reduce the shock of the battery outer frame 20.

[0034] When the battery outer frame 20 is placed in the placement slot 11, fasteners can be used to pass through the limiting baffle 22 and the limiting step 12 to fix the battery outer frame 20 on the battery box 10.

[0035] Example 2:

[0036] like Figures 1-6 As shown, a buffer pad 25 is also provided on the inner wall of the frame body 21; this helps to prevent wear on the lithium battery body 40 and provides shock absorption and safety protection. A buffer block 50 is also placed inside the frame body 21; the buffer block 50 occupies part of the space inside the frame body 21, which helps to remove the lithium battery body 40 from the frame body 21 by first removing the buffer block 50, thereby providing operating space for the subsequent disassembly and assembly of the lithium battery body 40.

[0037] Example 3:

[0038] like Figures 6-8 As shown, the frame body 21 is provided with clamping mechanisms 30. There are two clamping mechanisms 30, and the two clamping mechanisms 30 are installed on adjacent inner walls of the frame body 21. After adjustment, the clamping mechanisms 30 push the lithium battery bodies 40 to be closely arranged. The buffer block 50 is movably placed on one side of the inner wall of the frame body 21 opposite to one of the clamping mechanisms 30. The hollow structure of the frame body 21 reduces its own weight and allows for the detachment and placement of the lithium battery bodies 40 through the gaps. The adjacent clamping mechanisms 30 can clamp and fix lithium battery bodies 40 of different specifications.

[0039] When the frame body 21 is a cuboid structure, the lengths of adjacent sides are different, resulting in different spans of the two clamping mechanisms 30 on the horizontal plane. This helps to maximize the contact area between the pressure plate 35 and the lithium battery body 40.

[0040] The clamping mechanism 30 includes a support frame 31 mounted on the frame body 21. A guide screw 32 is rotatably mounted on the support frame 31, with both ends of the guide screw 32 extending outward to the outside of the support frame 31. The guide screw 32 is horizontally positioned and has two threaded sections with opposite directions of rotation. Each threaded section is threadedly connected to a guide block 33 located inside the support frame 31 and in contact with its inner wall. The two guide blocks 33 are connected to the same pressing plate 35 via movable connecting arms 34. The two ends of the movable connecting arms 34 are hinged to the guide blocks 33 and the pressing plate 35, respectively, and the two movable connecting arms 34 are symmetrically arranged. Rotating the guide screw 32 causes the threaded sections with opposite directions of rotation to move the two guide blocks 33 towards each other in contact with the support frame 31, thereby enabling the pressing plate 35 to be ejected or retracted. This operation achieves a compact adaptation for placing lithium battery bodies 40 of different specifications within the frame body 21.

[0041] The pressing plate 35 has a buffer pad 3 on the side facing away from the support frame 31. This helps to improve the smoothness of the contact between the pressing plate 35 and the lithium battery body 40, thereby forming a shock-absorbing effect on the pressing of the lithium battery body 40.

[0042] Example 4:

[0043] like Figure 2 , 4 As shown in Figure 9, one end of the guide screw 32 is provided with an operating notch 321; the cross-section of the operating notch 321 is an inner hexagonal structure, which can be used with a hexagonal wrench to quickly operate the rotation adjustment of the guide screw 32.

[0044] The two guide screws 32 have adjacent operating notches 321. This optimized layout allows for quick adjustment of the two guide screws 32.

[0045] The frame body 21 has an operating notch 24 for easy rotation and adjustment of the operating notch 321; the operating notch 24 is located at the corner of the side wall of the frame body 21. A hexagonal wrench can pass through the operating notch 24 to adjust the two operating notches 321, thereby allowing adjustment of the two guide screws 32 from the side of the frame body 21.

[0046] This utility model discloses a convenient lithium battery pack for assembly and disassembly. Four lifting rings facilitate the easy placement and removal of the battery outer frame pre-installed with the lithium battery body within the battery box. A buffer block 2 occupies a portion of the space within the frame body, allowing for easier removal of the lithium battery body from the frame body by first removing the buffer block 2, thus providing operational space for subsequent assembly and disassembly. The frame body itself has a hollow structure, reducing its weight while providing auxiliary operation for placing and disassembling the lithium battery body within the gaps. Adjacent clamping mechanisms can clamp and fix lithium battery bodies of different specifications.

[0047] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0048] The terms "upper," "lower," "outer," "inner," etc., used in the specification, claims, and accompanying drawings of this utility model, are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lithium battery pack that is easy to assemble and disassemble, comprising a battery case (10), wherein the battery case (10) is provided with a placement slot (11), characterized in that, The placement slot (11) is provided with a battery outer frame (20) for storing the lithium battery body (40). The battery outer frame (20) includes a frame body (21) and a limiting baffle (22). The edge of the opening of the frame body (21) is provided with the limiting baffle (22) extending horizontally outward. Each of the four corners of the limiting baffle (22) is provided with a lifting ring (23). The frame body (21) is provided with a clamping mechanism (30) and a second buffer block (50). There are two clamping mechanisms (30), and the two clamping mechanisms (30) are installed on adjacent inner walls of the frame body (21). After adjustment, the clamping mechanisms (30) push the lithium battery body (40) to be arranged closely. The second buffer block (50) is movably placed on one side of the inner wall of the frame body (21) opposite to one of the clamping mechanisms (30).

2. The lithium battery pack that is easy to install and disassemble according to claim 1, characterized in that, The upper edge of the placement slot (11) is provided with a limiting step (12) on the battery box (10), and the connection between the limiting step (12) and the placement slot (11) is provided with a transition chamfer (14) to facilitate the placement of the frame body (21).

3. A lithium battery pack that is easy to install and disassemble according to claim 2, characterized in that, The four corners of the limiting step (12) are respectively provided with buffer blocks (13) that can abut against the bottom surface of the limiting baffle (22).

4. A lithium battery pack that is easy to install and disassemble according to claim 3, characterized in that, The inner wall of the frame body (21) is also provided with a buffer pad (25).

5. A lithium battery pack that is easy to install and disassemble according to any one of claims 1 to 4, characterized in that, The clamping mechanism (30) includes a support frame (31) mounted on the frame body (21). A guide screw (32) is rotatably provided on the support frame (31). The guide screw (32) is horizontally arranged and has two threaded sections with opposite directions. The two threaded sections are respectively threaded with guide blocks (33) located inside the support frame (31) and in contact with the inner wall of the support frame (31). The two guide blocks (33) are respectively connected to the same pressing plate (35) through a movable connecting arm (34). The two ends of the movable connecting arm (34) are respectively hinged to the guide block (33) and the pressing plate (35).

6. A lithium battery pack that is easy to install and disassemble according to claim 5, characterized in that, The two active connecting arms (34) are arranged symmetrically.

7. A lithium battery pack that is easy to install and disassemble according to claim 6, characterized in that, One end of the guide screw (32) is provided with an operating notch (321).

8. A lithium battery pack that is easy to install and disassemble according to claim 7, characterized in that, The two operating notches (321) on the two guide screws (32) are arranged adjacent to each other.

9. A lithium battery pack that is easy to install and disassemble according to claim 8, characterized in that, The frame body (21) is provided with an operation notch (24) that facilitates the rotation and adjustment of the operation notch (321).

10. A lithium battery pack that is easy to install and disassemble according to claim 9, characterized in that, The pressure plate (35) has a buffer pad three on the side facing away from the support frame (31).

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