Protective lithium battery shell and lithium battery

Abstract

The protective lithium battery shell comprises the shell, the shell comprises a shell body, the four outer side faces of the shell body are each provided with a protective mechanism used for conducting damping protection on the outer side face, each protective mechanism is provided with a cross frame, each cross frame is provided with a damper, and the dampers are arranged on the cross frames. The four outer side faces of the shell are protected through the protection mechanisms, and when the outer side faces of the shell are collided, the protection mechanisms firstly bear impact force and buffer the borne impact force, so that the impact force applied to the shell is effectively weakened, the impact degree of the surface of the shell is greatly reduced, and the service life of the shell is prolonged. And meanwhile, the top, the bottom and the side face of the lithium battery can obtain an effective vibration buffering effect through the first damping pad, the second damping pad and the rubber pad on the inner side wall of the shell, so that the lithium battery has better protection performance.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery casing technology, specifically a protective lithium battery casing and a lithium battery. Background Technology

[0002] The lithium battery casing is an important component of a lithium battery. It not only protects the internal materials of the battery but also increases the strength of the casing, ensuring the safety and reliability of the battery. The structural design of the lithium battery casing needs to consider the tight fit and sealing between the casing and the internal components of the battery to ensure that the battery can work normally and reliably. The casing usually includes parts such as the positive electrode casing, the negative electrode casing, and the separator. The manufacturing process of the lithium battery casing includes multiple steps such as cutting, stamping, welding, and surface treatment. Welding technology is a key focus, as its quality directly affects the sealing of the casing and the performance of the battery.

[0003] Currently, lithium battery casings lack external protective structures. When the outer surface of the casing is impacted, it is easy for the outer surface of the casing to deform, squeezing the internal lithium battery and causing damage to the battery.

[0004] Therefore, a protective lithium battery casing and a lithium battery are proposed to solve the above problems. Utility Model Content

[0005] 1. Technical problem to be solved by the utility model

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a protective lithium battery casing and lithium battery, which aims to solve the problem that the external protective structure design of the lithium battery casing in the prior art is lacking. When the outer side of the casing is hit, it is easy to cause deformation of the outer side of the casing, which will squeeze the internal lithium battery and cause damage to the battery.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A protective lithium battery casing and a lithium battery, comprising a casing, wherein the casing includes a housing, and protective mechanisms for shock absorption and protection of the outer sides are installed on the four outer sides of the housing. A cross frame is installed on the protective mechanism, and a damper is installed on the cross frame. A spring is sleeved on the outer ring surface of one end of the damper, and one end of the damper and the spring are fixedly connected to the outer side of the casing.

[0010] As a preferred embodiment of this utility model, a base is installed at the bottom of the housing, a cover plate is installed at the top of the housing, and electrode nuts and foldable handles are installed at both ends of the top of the cover plate.

[0011] As a preferred embodiment of this utility model, dampers are installed at the four vertices and the center of the inner side of the cross frame, and the top and bottom of the cross frame are connected between the top of the base and the bottom of the cover plate.

[0012] As a preferred embodiment of this utility model, corner posts are installed at the four corners of the inner side of the housing, and threaded holes are opened at the top of the corner posts. A lithium battery is installed on the inner side of the housing.

[0013] As a preferred embodiment of this utility model, the lithium battery has electrode posts installed at both ends of the top, and shock-absorbing pads are installed at the bottom of the electrode posts. Right-angle grooves matching the size of the corner posts are opened at the four corners of the lithium battery. The lithium battery is inserted into the housing by aligning with the corner posts through the right-angle grooves. The bottom of the shock-absorbing pads is in contact with the bottom of the inner side of the housing. Rubber pads are laid on the inner side wall of the housing.

[0014] As a preferred embodiment of this utility model, a sealing plate is installed on the top of the lithium battery, and a shock-absorbing pad is installed on the bottom of the sealing plate and is attached to the top of the lithium battery. Through holes are opened at the four corners of the top of the sealing plate, and the inner side of the through holes is threadedly connected to the threaded hole at the top of the corner post by a bolt passing through it.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model protects the four outer sides of the casing through a protective mechanism. When the outer side of the casing is impacted, the protective mechanism is the first to receive the impact force and buffers it, effectively reducing the impact force applied to the casing and greatly reducing the impact on the casing surface. This makes the casing more protective of the battery and safer. At the same time, the top, bottom and sides of the lithium battery can be effectively cushioned by shock-absorbing pads one and two, as well as the rubber pads on the inner sidewall of the casing, thus providing better protection for the lithium battery. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a protective lithium battery casing and a lithium battery according to the present invention.

[0019] Figure 2 This is a schematic diagram of a protective lithium battery casing and a protective mechanism for the lithium battery according to the present invention.

[0020] Figure 3 This is a schematic diagram showing the protective lithium battery casing and the structure of the lithium battery casing according to the present invention.

[0021] Figure 4This is a schematic diagram of a protective lithium battery casing and a lithium battery structure according to the present invention.

[0022] In the diagram: 1. Outer shell; 2. Base; 3. Housing; 31. Corner post; 32. Sealing plate; 33. Through hole; 34. Shock-absorbing pad one; 4. Cover plate; 5. Protective mechanism; 51. Cross frame; 52. Damper; 53. Spring; 6. Lithium battery; 61. Electrode post; 62. Shock-absorbing pad two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figure 1-4 This embodiment provides a protective lithium battery casing and a lithium battery, including a casing 1, on which a housing 3 is mounted. Protective mechanisms 5 for shock absorption and protection of the outer surfaces are installed on the four outer surfaces of the housing 3. Cross brackets 51 are mounted on the protective mechanisms 5, and dampers 52 are mounted on the cross brackets 51. A spring 53 is fitted onto the outer ring surface of one end of the damper 52. One end of both the damper 52 and the spring 53 is fixedly connected to the outer surface of the housing 3. When in use, this protective lithium battery casing protects the four outer surfaces of the housing 3 through the protective mechanisms 5. When the outer surface of the housing 3 is impacted, the protective mechanism 5 receives the impact force first and buffers it, effectively reducing the impact force applied to the housing 3 and greatly reducing the impact degree on the surface of the housing 3. This results in better protection of the battery by the housing 3 and higher safety.

[0026] In this embodiment, as Figure 1 and Figure 2 As shown, dampers 52 are installed at the four vertices and the center of the inner side of the cross frame 51. The top and bottom of the cross frame 51 are connected between the top of the base 2 and the bottom of the cover plate 4. Therefore, when the cross frame 51 is subjected to an impact force, the pressure will be transmitted to the dampers 52 and the spring 53 for buffering, so that the impact force applied to the housing 3 is effectively reduced, thereby protecting the housing 3.

[0027] In this embodiment, as Figure 3 and Figure 4As shown, corner posts 31 are installed at the four corners of the inner side of the housing 3. Threaded holes are opened at the top of the corner posts 31. A lithium battery 6 is installed inside the housing 3. Electrode posts 61 are installed at both ends of the top of the lithium battery 6. A second shock-absorbing pad 62 is installed at the bottom of the electrode posts 61. Right-angle grooves matching the size of the corner posts 31 are opened at the four corners of the lithium battery 6. The lithium battery 6 is inserted into the housing 3 through the right-angle grooves, aligned with the corner posts 31. The bottom of the second shock-absorbing pad 62 fits against the bottom of the inner side of the housing 3. Rubber pads are laid on the inner wall of the housing 3, thus facilitating the installation of the lithium battery 6 into the housing 3. At the same time, the bottom and sides of the lithium battery 6 can obtain an effective vibration buffering effect.

[0028] In this embodiment, as Figure 3 and Figure 4 As shown, a sealing plate 32 is installed on the top of the lithium battery 6, and a shock-absorbing pad 34 is installed on the bottom of the sealing plate 32 and fits against the top of the lithium battery 6. Through holes 33 are opened at the four corners of the top of the sealing plate 32. The inside of the through holes 33 is connected to the threaded hole on the top of the corner post 31 by bolts, so that the sealing plate 32 can protect and absorb shock on the top of the lithium battery 6.

[0029] Working principle: When the protective lithium battery casing and lithium battery are in use, firstly, when the cross frame 51 is subjected to an impact force, the pressure will be transmitted to the damper 52 and spring 53 for buffering, effectively reducing the impact force applied to the casing 3, greatly reducing the impact degree on the surface of the casing 3, thereby making the casing 3 more protective of the battery and safer. At the same time, the lithium battery 6 can be quickly inserted into the casing 3 for installation. Meanwhile, the top, bottom and sides of the lithium battery 6 can obtain an effective vibration buffering effect through the shock-absorbing pad 34, the shock-absorbing pad 62 and the rubber pad on the inner side wall of the casing 3, thus providing better protection for the lithium battery 6.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A protective lithium battery casing, comprising a casing (1), characterized in that: The outer shell (1) includes a shell (3). Each of the four outer sides of the shell (3) is equipped with a protective mechanism (5) for shock absorption and protection of the outer side. A cross frame (51) is installed on the protective mechanism (5). A damper (52) is installed on the cross frame (51). A spring (53) is fitted on the outer ring surface of one end of the damper (52). One end of the damper (52) and the spring (53) are fixedly connected to the outer side of the shell (3).

2. The protective lithium battery casing according to claim 1, characterized in that: The bottom of the housing (3) is equipped with a base (2), and the top of the housing (3) is equipped with a cover plate (4). Electrode nuts and foldable handles are installed at both ends of the top of the cover plate (4).

3. The protective lithium battery casing according to claim 1, characterized in that: Dampers (52) are installed at the four vertices and the center of the inner side of the cross frame (51). The top and bottom of the cross frame (51) are connected between the top of the base (2) and the bottom of the cover plate (4).

4. A protective lithium battery casing according to claim 3, characterized in that: Corner posts (31) are installed at the four corners of the inner side of the housing (3). The top of the corner posts (31) is provided with threaded holes. A lithium battery (6) is installed on the inner side of the housing (3).

5. A lithium battery, comprising a protective lithium battery casing as described in any one of claims 1-4, characterized in that: The lithium battery (6) has electrode posts (61) installed at both ends of the top. The bottom of the electrode posts (61) is equipped with shock-absorbing pads (62). The lithium battery (6) has right-angle grooves at its four corners that match the size of the corner posts (31). The lithium battery (6) is inserted into the housing (3) through the right-angle grooves and aligned with the corner posts (31). The bottom of the shock-absorbing pads (62) is in contact with the bottom of the inner side of the housing (3). The inner side wall of the housing (3) is covered with rubber pads.

6. A lithium battery according to claim 5, characterized in that: The top of the lithium battery (6) is equipped with a sealing plate (32), and the bottom of the sealing plate (32) is equipped with a shock-absorbing pad (34) which is attached to the top of the lithium battery (6). The four corners of the top of the sealing plate (32) are provided with through holes (33). The inside of the through holes (33) is threadedly connected to the threaded hole at the top of the corner post (31) by a bolt passing through it.

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