Back splint battery pack

Abstract

The utility model discloses a back splint battery pack. The beneficial effects are that when the lower cover and the bottom cover are assembled, the lower cover can slide into the bottom cover conveniently by sliding the assembling strips into the assembling grooves, the heads of the limiting clamping rods can be extruded in the sliding installation process of the assembling strips, the heads of the limiting clamping rods are made to move downwards, it is ensured that the assembling strips pass through the limiting clamping rods conveniently, and the assembling efficiency is improved. When a blank position at the tail end of a to-be-assembled strip directly faces the head of a limiting clamping rod, the limiting clamping rod enables a clamping head to move upwards under the rebound reset action of the limiting clamping rod, so that the tail of the to-be-assembled strip is propped against and limited, and reliable connection between a bottom cover and a lower cover is ensured; and the bottom cover and the lower cover can be conveniently separated in a drawing manner only by pressing the button downwards to drive the head of the limiting clamping rod to move downwards, so that the lower cover and the bottom cover are more convenient and efficient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, specifically to a back clip battery pack. Background Technology

[0002] A battery case (also called a phone battery case or power bank case) is an external battery device designed specifically for smartphones, typically used as an external battery extender. It is usually designed to fit snugly against the back of the phone, providing extra power and helping to extend battery life, especially useful when out and about or unable to charge.

[0003] Existing battery packs mainly consist of an upper cover, a lower cover, a bottom cover, a battery pack mounted on the top of the bottom cover, and a charging cable and charging head mounted on the outside of the bottom cover. When assembling the lower cover and bottom cover, this type of battery pack mainly uses an interference fit to engage the pre-reserved hook edge on the lower cover with a pre-reserved groove on the bottom cover, thus achieving a reliable assembly of the lower cover and bottom cover. Although the interference fit can achieve a reliable assembly between the lower cover and bottom cover of the battery pack, when the bottom cover and bottom cover are subjected to a large pulling force, the hook edge on the lower cover is prone to separating from the hook groove on the bottom cover, causing the lithium battery part to fall off, resulting in poor stability of the battery pack. At the same time, the interference fit assembly method also makes it difficult to disassemble and repair the bottom cover and bottom cover in a timely manner when the lithium battery part of the battery pack is damaged. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a back clip battery pack that can achieve a stable connection between the bottom cover and the lower cover, preventing them from falling off and separating when subjected to large tensile forces, and also allows for quick disassembly of the lower cover and the bottom cover when the lithium battery part on the back clip battery pack is damaged.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a back clip battery pack, including an upper cover, a lower cover installed at the bottom of the upper cover, and a bottom cover installed at the bottom of the lower cover. Two sets of assembly strips are symmetrically installed on the lower part of the two side walls of the lower cover, with two assembly strips in each set. The lower cover has a recessed mechanism at the assembly strip. The bottom cover has a pre-reserved assembly groove at the part that mates with the assembly strip. A limiting component is installed in one of the assembly grooves on the bottom cover. The limiting component includes a limiting rod, a guide hole, a button, a linkage rod, and a guide plate.

[0008] Furthermore, an installation plate is also installed on the bottom of the bottom cover, directly opposite the limiting component, and a guide plate is installed on the installation plate, with one end of the guide plate connected to the button.

[0009] Furthermore, the guide hole is pre-drilled on the linkage rod on one side of the button, and the guide plate slides in conjunction with the guide hole.

[0010] Furthermore, the limiting rod is installed on one side of the linkage rod, and a 45° inclined surface is reserved at the top of the limiting rod.

[0011] Furthermore, one end of the assembly strip has a beveled surface that fits into the head of the limiting lever, the other end of the assembly strip has an arc-shaped structure, and a gap is reserved between the two assembly strips on the same side of the lower cover.

[0012] Furthermore, the head of the limiting rod on the bottom cover is a hollow structure, and the limiting rod is inclined relative to the linkage rod.

[0013] Furthermore, two charging cables are symmetrically installed on one side of the upper end of the mounting plate, and each charging cable is connected to a charging head at the end facing away from the mounting plate.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention features pre-reserved assembly strips on the lower sides of the lower cover and assembly grooves on the bottom cover where the assembly strips mate. A limiting assembly consisting of a limiting rod, guide hole, button, linkage rod, and guide plate is installed on the bottom cover at the mating point with the assembly strips. During assembly of the lower and bottom covers, the assembly strips slide into the assembly grooves, facilitating the easy sliding of the lower cover onto the bottom cover. During the sliding installation of the assembly strips, the head of the limiting rods is compressed, causing the head of the limiting rods to move downwards, ensuring the easy passage of the assembly strips through the limiting rods. When the blank position at the end of the assembly strip aligns with the head of the limiting rod, the limiting rods will spring back and lock in place. The top moves upward to abut and limit the tail of the assembly strip, ensuring a reliable connection between the bottom cover and the lower cover. When the lithium battery body is damaged and the lower cover needs to be separated from the bottom cover, simply press down the button to move the head of the limiting lever downward, and the bottom cover and the lower cover can be easily separated by pulling. Because the connection between the lower cover and the bottom cover is achieved by sliding and pressing under this installation structure, the cumbersome operation of interference fit is eliminated. At the same time, it makes the connection between the lower cover and the bottom cover more secure after installation. In addition, it also facilitates the easy separation of the bottom cover and the lower cover when the lithium battery body in the battery pack is damaged, which facilitates quick inspection and maintenance of the lithium battery body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the back clip battery pack described in this utility model;

[0018] Figure 2 This is a right view of the battery pack with the bottom cover removed.

[0019] Figure 3 The battery pack with clip-on design described in this utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is an example of the back of the battery pack described in this utility model after removing the bottom cover;

[0021] Figure 5 This is a schematic diagram of the back clip battery pack of this utility model after removing the top and bottom covers.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Top cover; 2. Bottom cover; 3. Charging head; 4. Bottom cover; 5. Limiting component; 501. Limiting rod; 502. Guide hole; 503. Button; 504. Guide plate; 505. Linkage rod; 6. Charging cable; 7. Assembly strip; 8. Assembly slot; 9. Mounting plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] like Figures 1-5 As shown, the battery pack in this embodiment includes an upper cover 1, a lower cover 2 installed at the bottom of the upper cover 1, and a bottom cover 4 installed at the bottom of the lower cover 2. Two sets of assembly strips 7 are symmetrically installed on the lower part of the two side walls of the lower cover 2, with two assembly strips in each set. The lower cover 2 has a recessed mechanism at the assembly strips 7. The bottom cover 4 has an assembly groove 8 reserved at the part that mates with the assembly strips 7. A limiting component 5 is installed in one of the assembly grooves 8 on the bottom cover 4. The limiting component 5 includes a limiting lever 501, a guide hole 502, and a button. When installing the lower cover 2 and the bottom cover 4, the assembly strip 7 is inserted into the assembly groove 8. As the assembly strip 7 is inserted, it pushes the head of the limiting rod 501 into the bottom cover 4. When the tail of the limiting rod 501 moves away from the top of the head, the head of the limiting rod 501 will move upward and reset under its own rebound, and the tail of the assembly strip 7 will be in contact, thereby achieving reliable assembly between the lower cover 2 and the bottom cover 4.

[0026] like Figures 2-4 As shown, in this embodiment, a mounting plate 9 is also installed at the bottom of the bottom cover 4, directly opposite the limiting component 5. A guide plate 504 is installed on the mounting plate 9, and one end of the guide plate 504 is connected to the button 503. The mounting plate 9 can ensure the stable up and down movement of the button 503. A guide hole 502 is reserved on the linkage rod 505 on one side of the button 503. The guide plate 504 and the guide hole 502 are slidably engaged. The sliding engagement of the guide hole 502 and the guide plate 504 can ensure the stable up and down movement of the button 503. A limiting rod 501 is installed on one side of the linkage rod 505. A 45° angle is reserved at the head of the limiting rod 501. The assembly strip 7 has a beveled surface at one end that fits into the head of the limiting rod 501. The other end of the assembly strip 7 is an arc-shaped structure. There is a gap between the two assembly strips 7 on the same side of the lower cover 2. After the beveled surface on the assembly strip 7 fits into the beveled surface of the head of the limiting rod 501, as the assembly strip 7 is inserted into the assembly groove 8, the head of the limiting rod 501 will be pressed into the bottom cover 4. The head of the limiting rod 501 on the bottom cover 4 is a hollow structure. The limiting rod 501 is inclined relative to the linkage rod 505. The hollow structure design on the bottom cover 4 facilitates the convenient retraction of the head of the limiting rod 501.

[0027] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown in this embodiment, two charging cables 6 are symmetrically installed on one side of the upper end of the mounting plate 9. Each charging cable 6 is connected to a charging head 3 at the end facing away from the mounting plate 9. The user's mobile phone can be conveniently charged with the help of the charging cable 6 and the charging head 3.

[0028] The specific implementation process of this embodiment is as follows: First, the lithium battery body is installed between the upper cover 1 and the lower cover 2. Then, the assembly strip 7 on the lower cover 2 is slid into the assembly groove 8 to facilitate the sliding of the lower cover 2 onto the bottom cover 4. During the sliding installation of the assembly strip 7, the head of the limiting rod 501 is squeezed, thereby causing the head of the limiting rod 501 to move downwards, ensuring the assembly strip 7 passes easily through the limiting rod 501. When the blank position at the end of the assembly strip 7 is aligned with the head of the limiting rod 501, the limiting rod 501 will move upwards under its own rebound reset action to abut and limit the tail of the assembly strip 7, ensuring the bottom cover... The bottom cover 4 is reliably connected to the bottom cover 2. When the lithium battery body is damaged and it is necessary to separate the bottom cover 2 from the bottom cover 4, simply press down the button 503 to move the head of the limit lever 501 downward, and the bottom cover 4 and the bottom cover 2 can be easily separated by pulling. Under this installation structure, the connection between the bottom cover 2 and the bottom cover 4 is achieved by sliding and pressing, which eliminates the cumbersome operation of interference fit. At the same time, it makes the connection between the bottom cover 2 and the bottom cover 4 more secure after installation. In addition, it also facilitates the easy separation between the bottom cover 4 and the bottom cover 2 when the lithium battery body in the battery pack is damaged, which facilitates the quick inspection and maintenance of the lithium battery body.

[0029] 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 battery pack with a clip-on design, characterized in that: The device includes an upper cover (1), a lower cover (2) installed at the bottom of the upper cover (1), a bottom cover (4) installed at the bottom of the lower cover (2), two sets of assembly strips (7) symmetrically installed on the lower part of the two side walls of the lower cover (2), each set of assembly strips (7) having two parts, the lower cover (2) having a recessed mechanism at the assembly strips (7), the bottom cover (4) having an assembly groove (8) reserved at the part that mates with the assembly strips (7), and a limit component (5) installed in one of the assembly grooves (8) on the bottom cover (4). The limit component (5) includes a limit lever (501), a guide hole (502), a button (503), a linkage rod (505), and a guide plate (504).

2. The battery pack with clip-on design according to claim 1, characterized in that: An mounting plate (9) is also installed on the bottom of the bottom cover (4) directly opposite the limiting component (5). The guide plate (504) is installed on the mounting plate (9), and one end of the guide plate (504) is connected to the button (503).

3. The battery pack with clip-on back clip according to claim 2, characterized in that: The guide hole (502) is reserved on the linkage rod (505) on one side of the button (503), and the guide plate (504) slides with the guide hole (502).

4. The battery pack according to claim 2, characterized in that: The limiting rod (501) is installed on one side of the linkage rod (505), and the head of the limiting rod (501) has a 45° bevel.

5. The battery pack according to claim 4, characterized in that: One end of the assembly strip (7) is reserved with a bevel that fits against the head of the limiting lever (501), the other end of the assembly strip (7) is an arc-shaped structure, and a gap is reserved between the two assembly strips (7) on the same side of the lower cover (2).

6. The battery pack according to claim 2, characterized in that: The head of the bottom cover (4) located on the limiting rod (501) is a hollow structure, and the limiting rod (501) is inclined relative to the linkage rod (505).

7. The battery pack according to claim 2, characterized in that: Two charging cables (6) are symmetrically installed on one side of the upper end of the mounting plate (9), and each charging cable (6) has a charging head (3) connected to one end facing away from the mounting plate (9).

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