Lithium battery shell capable of preventing extrusion deformation

Abstract

The utility model discloses an anti-extrusion deformation lithium battery case, which relates to the technical field of lithium batteries, and comprises a side plate and a sliding chute, the sliding chute is arranged in the side plate, one side of the side plate is fixedly connected with an anti-extrusion mechanism, the anti-extrusion mechanism comprises a connecting block movably connected to one side of the side plate, and the connecting block is arranged in the sliding chute. A connecting block is fixedly connected to one side of the side plate, a buffer gasket is fixedly connected to one side of the connecting block, an anti-extrusion ball is movably connected to the interior of the buffer gasket, sliding grooves are formed in the upper side and the lower side of the side plate, two sets of anti-extrusion mechanisms are fixedly connected to one side of the side plate, the buffer gasket is connected with the side plate through the connecting block, and the buffer gasket is made of a silica gel material. Compared with an existing common lithium battery shell, the lithium battery shell capable of preventing extrusion deformation has the advantages that a plurality of groups of heat dissipation holes are formed in the left side and the right side of the placement groove, and dustproof nets are arranged in the heat dissipation holes, so that heat generated by the lithium battery main body can be quickly discharged through the heat dissipation holes, and meanwhile, the dustproof nets prevent dust from being attached to the outer part of the lithium battery main body through the placement groove.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery shell which is resistant to extrusion and deformation. Background Art

[0002] Lithium-ion battery is a secondary battery that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. Generally speaking, the lithium-ion battery shell is divided into three categories: steel shell, aluminum shell, and soft shell. Lithium-ion battery steel shell: Early angular lithium-ion batteries were mostly steel shells, which were mostly used in mobile phone batteries. Later, due to the low weight-to-energy ratio of steel shells, they are currently mostly used in button batteries. Lithium-ion battery aluminum shell, because aluminum shells are lighter and slightly safer than steel shell lithium-ion batteries, has become the main force in mobile phone batteries.

[0003] For example, a lithium battery with an anti-extrusion deformation structure with application number CN202221507149.5 includes a shell and a protective component, characterized in that an anti-puncture film is pasted on the inner surface of the shell, and the protective component for buffering and isolating oxygen when the fire is heated is arranged on the inner wall of the anti-puncture film, and the protective component includes an airbag ring and a buffer convex point, the surface of the airbag ring is connected with a buffer convex point, and a limit component for limiting is arranged below the airbag ring, and the limit component includes a mounting block, a mounting groove, a rubber block, a ferrule and an epoxy board inner layer, the outer surface of the mounting block is provided with a mounting groove, and the inner side of the mounting block is installed with a rubber block, the inner side of the rubber block is connected with a ferrule, and the inner wall of the ferrule is installed with an epoxy board inner layer. However, the anti-extrusion mechanism inside the lithium battery shell has a complicated installation method, and screws or other devices are required to install the anti-extrusion mechanism. When the internal lithium battery body needs to be replaced, it is difficult to remove the lithium battery body from the inside of the placement slot. Therefore, in view of this, the existing structural deficiencies are studied and improved, and a lithium battery shell that prevents extrusion and deformation is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium battery shell that is resistant to extrusion and deformation, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a lithium battery shell that is anti-extrusion and deformation, comprising a side panel and a slide groove, the slide groove is opened inside the side panel, and one side of the side panel is fixedly connected to an anti-extrusion mechanism, the anti-extrusion mechanism comprises a connecting block movably connected to a position on one side of the side panel, and one side of the connecting block is fixedly connected to a buffer gasket, and the buffer gasket is movably connected to an anti-extrusion ball inside.

[0006] Preferably, a placement groove is fixedly connected to one side of the side plate, and a sliding block is fixedly connected to one side of the placement groove.

[0007] Preferably, a heat dissipation hole is opened inside one side of the placement groove, and the lithium battery body is movably connected inside the placement groove.

[0008] Preferably, a moisture-proof plate is provided at the contact point between the placement groove and the lithium battery body, and an outer box is provided outside the lithium battery body.

[0009] Preferably, an anti-collision mechanism is provided inside the outer box, and the anti-collision mechanism includes a retractable rod fixedly connected to the inner position of the outer shell, a return spring is connected through the outside of the retractable rod, and a baffle is elastically connected to one side of the return spring.

[0010] Preferably, a sponge block is fixedly connected to one side of the baffle, and three groups of sponge blocks are evenly distributed on one side of the baffle.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model can use the sliding groove and the anti-extrusion mechanism to form a quick-release mechanism by using the sliders on the upper and lower sides of the placement groove and the slider inside the side plate. When the lithium battery body is placed inside the placement groove, no screws or other devices are required to quickly connect the side plate with the placement groove to form a quick-release mechanism. The anti-extrusion mechanism on both sides of the side plate protects the internal lithium battery body when the placement groove with the lithium battery is placed inside the outer box. The buffer gasket is made of air cushion film material. The air cushion film has the characteristics of lightness and shock absorption, which can help the lithium battery body maintain balance during movement and reduce the risk of damage caused by changes in speed or direction. The main body of the lithium battery is unbalanced, and the anti-extrusion ball plays a role of buffering and protection when the placement slot rolls down inside the outer box. When the outer box is subjected to external force, the buffer gasket and the anti-extrusion ball can not only buffer the external force to prevent the placement slot from being squeezed and deformed, but also the anti-extrusion ball can roll in all directions inside the buffer gasket, which helps the staff to install the placement slot inside the outer box more labor-savingly. There are multiple groups of heat dissipation holes on the left and right sides of the placement slot, and a dustproof net is arranged inside the heat dissipation hole. The heat dissipation hole can quickly discharge the heat generated by the lithium battery main body, and the dustproof net prevents dust from adhering to the outside of the lithium battery main body through the placement slot;

[0013] 2. The utility model provides an anti-collision mechanism and a sponge block. When the placement slot is placed inside the outer box and contacts the baffle plate inside the anti-collision mechanism, the retraction rod and the return spring retract outward according to the size of the external force applied to the baffle plate. When the baffle plate interacts with the placement slot, placement slots of different sizes are fixed, thereby improving the applicability of the lithium battery housing. At the same time, a sponge block is added to the outside of the baffle plate. The sponge block protects the placement slot and prevents the placement slot from directly contacting the inside of the outer box and causing damage to the outside of the placement slot due to repeated handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a schematic diagram of the main body split structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the partial split structure of the main body of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the main body of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the anti-collision mechanism 10 of the utility model.

[0018] In the figure: 1. placement groove; 2. side panel; 3. slide groove; 4. anti-extrusion mechanism; 401. connection block; 402. buffer gasket; 403. anti-extrusion ball; 5. slider; 6. heat dissipation hole; 7. lithium battery body; 8. moisture-proof plate; 9. outer box; 10. anti-collision mechanism; 1001. retracting rod; 1002. reset spring; 1003. baffle; 11. sponge block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-Figure 2 As shown, a lithium battery shell that is anti-extrusion and deformation includes a side panel 2 and a slide groove 3, the side panel 2 is provided with a slide groove 3, and one side of the side panel 2 is fixedly connected with an anti-extrusion mechanism 4, the anti-extrusion mechanism 4 includes a connecting block 401 movably connected to one side of the side panel 2, and one side of the connecting block 401 is fixedly connected with a buffer gasket 402, and the buffer gasket 402 is internally movably connected with an anti-extrusion ball 403, the upper and lower sides of the side panel 2 are provided with slide grooves 3, one side of the side panel 2 is fixedly connected with two groups of anti-extrusion mechanisms 4, the buffer gasket 402 is connected to the side panel 2 through the connecting block 401, the buffer gasket 402 is made of silicone material, the material is relatively soft and can disperse external impact force, and a plurality of anti-extrusion balls 403 are arranged inside the buffer gasket 402, and the anti-extrusion balls 403 are made of elastic material.

[0021] like Figure 3-Figure 4 As shown, one side of the side panel 2 is fixedly connected with a placement groove 1, and one side of the placement groove 1 is fixedly connected with a slider 5, the side panel 2 is located on the left and right sides of the placement groove 1, the slider 5 on the top of the placement groove 1 is consistent with the slide groove 3 inside the side panel 2, and the side panel 2 can be fixed to the placement groove 1 through the sliding connection between the slide groove 3 and the slider 5.

[0022] Furthermore, a heat dissipation hole 6 is opened inside one side of the placement slot 1, and the lithium battery body 7 is movably connected inside the placement slot 1. Multiple groups of heat dissipation holes 6 are opened on the front and back sides of the placement slot 1. The lithium battery body 7 cannot be placed in an environment with too high temperature. The heat dissipation holes 6 can dissipate the heat generated by the lithium battery body 7 in time.

[0023] Furthermore, a moisture-proof plate 8 is provided at the contact point between the placement slot 1 and the lithium battery body 7, and an outer box 9 is provided on the outside of the lithium battery body 7. The moisture-proof plate 8 is made of PVC plastic material, which has excellent waterproof, moisture-proof and mildew-proof characteristics, and prevents the lithium battery body 7 from getting damp and malfunctioning, affecting subsequent use.

[0024] Furthermore, an anti-collision mechanism 10 is provided inside the outer box 9, and the anti-collision mechanism 10 includes a retractable rod 1001 fixedly connected to the inner position of the outer shell, a reset spring 1002 is connected to the outside of the retractable rod 1001, and a baffle 1003 is elastically connected to one side of the reset spring 1002. The anti-collision mechanism 10 is symmetrically distributed on the left and right sides of the outer box 9, and the vertical center lines of the retractable rod 1001 and the reset spring 1002 are consistent, and both are located on the left and right sides of the baffle 1003, supporting the baffle 1003.

[0025] Furthermore, a sponge block 11 is fixedly connected to one side of the baffle 1003, and three groups of sponge blocks 11 are evenly distributed on one side of the baffle 1003. The sponge blocks 11 separate the placement slot 1 from the inner wall of the outer box 9 to prevent the baffle 1003 from blocking the heat dissipation holes 6. The sponge blocks 11 protect the outer wall of the placement slot 1 to prevent repeated friction during the process of taking the placement slot 1.

[0026] Working principle: When using the anti-extrusion and deformation lithium battery shell, first place the lithium battery body 7 inside the placement groove 1, connect the side panel 2 with the placement groove 1 through the slider 5 and the slide groove 3, and then the connecting block 401 inside the anti-extrusion mechanism 4 connects the buffer gasket 402 with the side panel 2, and then the placement groove 1 with the lithium battery body 7 is placed inside the outer box 9 through the rolling of the anti-extrusion ball 403 and the inner wall of the outer box 9. When the placement groove 1 contacts the sponge block 11, the baffle 1003 inside the anti-collision mechanism 10 is squeezed, and the retraction rod 1001 and the return spring 1002 are retracted backwards by external force, so as to fix and protect the lithium battery body 7 inside the placement groove 1. This is the working principle of the anti-extrusion and deformation lithium battery shell.

Claims

1. A lithium battery housing that is resistant to extrusion deformation, comprising a side plate (2) and a slide groove (3), characterized in that: A sliding groove (3) is provided inside the side plate (2), and an anti-extrusion mechanism (4) is fixedly connected to one side of the side plate (2), the anti-extrusion mechanism (4) comprises a connecting block (401) movably connected to one side of the side plate (2), and a buffer gasket (402) is fixedly connected to one side of the connecting block (401), and an anti-extrusion ball (403) is movably connected inside the buffer gasket (402).

2. The anti-extrusion deformation lithium battery casing according to claim 1, characterized in that: One side of the side plate (2) is fixedly connected to a placement groove (1), and one side of the placement groove (1) is fixedly connected to a sliding block (5).

3. The anti-extrusion deformation lithium battery casing according to claim 2, characterized in that: A heat dissipation hole (6) is provided inside one side of the placement groove (1), and a lithium battery body (7) is movably connected inside the placement groove (1).

4. The anti-extrusion deformation lithium battery casing according to claim 2, characterized in that: A moisture-proof plate (8) is provided at the contact point between the placement groove (1) and the lithium battery body (7), and an outer box (9) is provided outside the lithium battery body (7).

5. The anti-extrusion deformation lithium battery casing according to claim 4, characterized in that: An anti-collision mechanism (10) is arranged inside the outer box (9), and the anti-collision mechanism (10) comprises a retractable rod (1001) fixedly connected to the inner position of the outer shell, a return spring (1002) is connected to the outside of the retractable rod (1001), and a baffle (1003) is elastically connected to one side of the return spring (1002).

6. The anti-extrusion deformation lithium battery casing according to claim 5, characterized in that: A sponge block (11) is fixedly connected to one side of the baffle (1003), and three groups of sponge blocks (11) are evenly distributed on one side of the baffle (1003).

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