18650 lithium battery safety protection device

Abstract

The utility model belongs to the field of lithium battery production, and particularly relates to an 18650 lithium battery safety protection device which comprises a base, a protection shell and a mounting seat, the base and the protection shell are mounted through bolts, and a lithium battery body is arranged in the mounting seat; the protection assembly is mounted in the mounting seat and the protection shell; the sliding assembly is installed on the top of the base. According to the lithium battery provided by the invention, the mounting seat and the protection assembly are matched for use, the mounting seat is of a scale for separating single lithium battery main bodies, so that friction and collision between the lithium battery main bodies are reduced, and meanwhile, the protection shell at the top and the insulating sheet at the bottom are both made of light, flame-retardant and high-temperature-resistant insulating materials, so that protection on the two sides is increased, and the effect of facilitating replacement is achieved; and meanwhile, the sliding assembly increases the pulling effect on the mounting seat, the lithium battery main body can be conveniently put in and taken out, and the fixing assembly achieves the effect of positioning the mounting seat, so that the protection function is increased, and the lithium battery main body can be conveniently disassembled, assembled and taken out.

Description

Technical Field

[0001] The utility model relates to the field of 18650 lithium battery production, in particular to a 18650 lithium battery safety protection device. Background Art

[0002] Lithium battery: Lithium-ion battery has the advantages of light weight, large capacity, no memory effect, etc., so it has been widely used - many digital devices use lithium-ion batteries as power sources, although they are relatively expensive. Lithium-ion batteries have a high energy density, and their capacity is 1.5 to 2 times that of nickel-hydrogen batteries of the same weight, and they have a very low self-discharge rate.

[0003] After searching, a lithium battery safety protection device with the authorization publication number CN212967873U is found, and its structure includes a mounting base, a fixed cross frame, a fixing nut, a connecting shaft column, a shock-absorbing protection mechanism, a U-shaped bracket, a fixed cover frame, and a hook ring. The inner side of the mounting base is welded with the outer side of the fixed cross frame. The utility model is a lithium battery safety protection device. The lithium battery is placed in the empty slot cavity set inside the protective shell, and a mounting U seat is installed inside the lower end to place the lithium battery on it. When bumps occur during placement and transportation, a first spring is installed on the outer side of the mounting U seat to buffer the impact force generated during translation. Further, a second spring is provided inside the fixed frame at the lower end to connect the T-shaped column at the upper end. When vibrating, the buffer pad at the upper end performs preliminary energy absorption, and the second spring connected to the lower end complies with the sliding rail rod frame connected along the outer side of the T-shaped column to buffer the downward displacement and absorb energy.

[0004] This solution increases the effect of reducing the impact force on the internal battery, but in the event of a violent collision, the impact force that the spring can buffer is relatively small. At the same time, in the event of a violent collision, the batteries may be squeezed and deformed or spontaneously combust at high temperature, which can easily cause a reaction in other connected batteries. There are certain safety hazards and it is not convenient to use. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the utility model proposes a 18650 lithium battery safety protection device.

[0006] The technical solution adopted by the utility model to solve the technical problem is: the 18650 lithium battery safety protection device described in the utility model comprises a base, a protective shell and a mounting seat, the base and the protective shell are mounted by bolts, and the mounting seat is provided with a lithium battery body;

[0007] A protective component, the protective component is installed in the mounting seat and the protective shell;

[0008] A sliding assembly, the sliding assembly being mounted on the top of the base;

[0009] A fixing assembly, wherein the fixing assembly is installed on both sides of the inner cavity of the protective shell;

[0010] The protective component includes a protective cover, which is adhered to the inner wall of the protective shell by Velcro, the inner cavity of the mounting seat is slidably connected with a drawer plate, an insulating sheet is adhered inside the drawer plate, a first pull ring is fixedly connected to one side of the drawer plate, and both ends of the lithium battery body are in contact with the insulating sheet and the protective cover.

[0011] Preferably, the sliding assembly includes a slide groove, which is opened at the top of the base, and the inner cavity of the slide groove is slidably connected with a slider, and the top of the slider is connected to the bottom of the mounting seat.

[0012] Preferably, the fixing assembly includes a bearing, which is installed inside the protective shell, and the inner wall of the inner ring of the bearing is fixedly connected with a rotating rod, one side of the rotating rod is fixedly connected with a limiting plate, and one side of the limiting plate is in contact with the mounting seat.

[0013] Preferably, a torsion spring is sleeved on the surface of the rotating rod, one end of the torsion spring is connected to the limiting plate, and the other end of the torsion spring is fixedly connected to the surface of the outer ring of the bearing.

[0014] Preferably, a groove for cooperating with the bearing is formed on one side of the protective shell.

[0015] Preferably, the protective cover and the insulating sheet are both made of lightweight, flame-retardant, and high-temperature resistant insulating materials.

[0016] Preferably, a second pull ring is fixedly connected to one side of the mounting seat.

[0017] The utility model is beneficial in that:

[0018] 1. The utility model sets a mounting seat and a protective component for use. The mounting seat is the scale of a single lithium battery body, thereby reducing friction and collision between them. At the same time, the top protective shell and the bottom insulating sheet are made of lightweight, flame-retardant, and high-temperature resistant insulating materials, which increase the protection on both sides and facilitate replacement. At the same time, the sliding component increases the pulling effect of the mounting seat, which is convenient for putting in and taking out the lithium battery body. The fixed component has the effect of positioning the mounting seat to prevent sliding, thereby increasing the protection function and convenient disassembly and removal;

[0019] 2. The utility model sets a sliding assembly, the protective shell and the base are fixed by bolts, and the mounting seat moves in the protective shell, thereby driving the slider to move in the slide groove to prevent complete separation, thereby increasing the effect of guiding and fixing to only move horizontally. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the inverted structure of the protective shell and protective cover of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the drawer plate and the insulating sheet of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the sliding component of the utility model.

[0026] In the figure: 1. base; 2. protective shell; 3. mounting seat; 4. protective cover; 5. drawer plate; 6. insulating sheet; 7. first pull ring; 8. slide groove; 9. slider; 10. bearing; 11. rotating rod; 12. limit plate; 13. torsion spring; 14. groove; 15. second pull ring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] See also Figure 1-Figure 5 As shown, a 18650 lithium battery safety protection device includes a base 1, a protective shell 2 and a mounting seat 3. The base 1 and the protective shell 2 are mounted by bolts, and a lithium battery body is arranged in the mounting seat 3;

[0029] A protective component, the protective component is installed in the mounting seat 3 and the protective shell 2;

[0030] A sliding assembly is installed on the top of the base 1;

[0031] A fixing component, the fixing component is installed on both sides of the inner cavity of the protective shell 2;

[0032] The protective component includes a protective cover 4, which is adhered to the inner wall of the protective shell 2 by Velcro, a draw plate 5 is slidably connected to the inner cavity of the mounting seat 3, an insulating sheet 6 is adhered to the draw plate 5, a first pull ring 7 is fixedly connected to one side of the draw plate 5, both ends of the lithium battery body are in contact with the insulating sheet 6 and the protective cover 4, the protective cover 4 and the insulating sheet 6 are made of lightweight, flame-retardant, high-temperature resistant insulating materials, and a second pull ring 15 is fixedly connected to one side of the mounting seat 3;

[0033] During operation, by setting up the coordinated use of the mounting seat 3 and the protective component, the mounting seat 3 is the scale of a single lithium battery body partition, thereby reducing friction and collision between them. At the same time, the top protective shell 2 and the bottom insulating sheet 6 are made of lightweight, flame-retardant, and high-temperature resistant insulating materials, which increase the protection on both sides and facilitate replacement. At the same time, the sliding component increases the pulling effect of the mounting seat 3, which is convenient for placing and taking out the lithium battery body. The fixed component has the effect of positioning the mounting seat 3 to prevent sliding, thereby increasing the protection function and convenient disassembly and removal.

[0034] Furthermore, the sliding assembly includes a slide groove 8, which is opened at the top of the base 1, and the inner cavity of the slide groove 8 is slidably connected with a slider 9, and the top of the slider 9 is connected to the bottom of the mounting seat 3;

[0035] During operation, by setting a sliding assembly, the protective shell 2 and the base 1 are fixed by bolts, and the mounting seat 3 moves in the protective shell 2, thereby driving the slider 9 to move in the slide groove 8 to prevent complete separation, thereby increasing the effect of guiding and fixing to only allow horizontal movement.

[0036] Furthermore, the fixing assembly includes a bearing 10, which is installed inside the protective shell 2. A rotating rod 11 is fixedly connected to the inner wall of the inner ring of the bearing 10. A limiting plate 12 is fixedly connected to one side of the rotating rod 11. One side of the limiting plate 12 is fitted with the mounting seat 3. A torsion spring 13 is sleeved on the surface of the rotating rod 11. One end of the torsion spring 13 is connected to the limiting plate 12. The other end of the torsion spring 13 is fixedly connected to the surface of the outer ring of the bearing 10. A groove 14 for use with the bearing 10 is provided on one side of the protective shell 2.

[0037] During operation, by setting a fixed component, the limit plate 12 is rotated, and the limit plate 12 drives the rotating rod 11 to rotate, thereby adjusting the inner ring of the bearing 10 to rotate, and the torsion spring 13 is rotated and deformed by the limit plate 12. After the mounting seat 3 completely enters the protective shell 2, the limit plate 12 is released, and the torsion spring 13 is deformed by the force and drives the limit plate 12 to reset and engage with the mounting seat 3 to prevent movement, thereby effectively fixing the mounting seat 3 to prevent detachment and reduce separation after collision.

[0038] Working principle: the user rotates the limit plate 12, and the limit plate 12 drives the rotating rod 11 to rotate, thereby adjusting the inner ring of the bearing 10 to rotate, and the torsion spring 13 rotates and deforms under force through the limit plate 12. The protective shell 2 and the base 1 are fixed by bolts, and the mounting seat 3 moves in the protective shell 2, thereby driving the slider 9 to move in the slide groove 8. After the installation is completed, the mounting seat 3 slides into the protective shell 2, and the limit plate 12 is released. The torsion spring 13 is reset, thereby driving the limit plate 12 to fit with the protective shell 2. The mounting seat 3 is the scale of a single lithium battery body partition, thereby reducing friction and collision between them. At the same time, the top protective shell 2 and the bottom insulating sheet 6 are made of lightweight, flame-retardant, and high-temperature resistant insulating materials.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A 18650 lithium battery safety protection device, comprising a base (1), a protective shell (2) and a mounting seat (3), characterized in that: The base (1) and the protective shell (2) are mounted by means of bolts, and a lithium battery body is arranged in the mounting seat (3); A protective component, the protective component being installed in the mounting seat (3) and the protective shell (2); A sliding assembly, the sliding assembly being mounted on the top of the base (1); A fixing assembly, the fixing assembly being mounted on two sides of the inner cavity of the protective shell (2); The protective component comprises a protective sleeve (4), the protective sleeve (4) being adhered to the inner wall of the protective shell (2) by means of Velcro, the inner cavity of the mounting seat (3) being slidably connected with a draw plate (5), the draw plate (5) being adhered with an insulating sheet (6), one side of the draw plate (5) being fixedly connected with a first pull ring (7), and both ends of the lithium battery body being in contact with the insulating sheet (6) and the protective sleeve (4).

2. A 18650 lithium battery safety protection device according to claim 1, characterized in that: The sliding assembly comprises a slide groove (8), wherein the slide groove (8) is opened at the top of the base (1), the inner cavity of the slide groove (8) is slidably connected with a slider (9), and the top of the slider (9) is connected to the bottom of the mounting seat (3).

3. A 18650 lithium battery safety protection device according to claim 2, characterized in that: The fixing assembly comprises a bearing (10), the bearing (10) being mounted inside the protective shell (2), the inner wall of the inner ring of the bearing (10) being fixedly connected to a rotating rod (11), one side of the rotating rod (11) being fixedly connected to a limiting plate (12), and one side of the limiting plate (12) being in contact with the mounting seat (3).

4. A 18650 lithium battery safety protection device according to claim 3, characterized in that: A torsion spring (13) is sleeved on the surface of the rotating rod (11), one end of the torsion spring (13) is connected to the limiting plate (12), and the other end of the torsion spring (13) is fixedly connected to the surface of the outer ring of the bearing (10).

5. The 18650 lithium battery safety protection device according to claim 3, characterized in that: A groove (14) for use with the bearing (10) is provided on one side of the protective shell (2).

6. A 18650 lithium battery safety protection device according to claim 1, characterized in that: The protective cover (4) and the insulating sheet (6) are both made of lightweight, flame-retardant, and high-temperature resistant insulating materials.

7. The 18650 lithium battery safety protection device according to claim 1, characterized in that: A second pull ring (15) is fixedly connected to one side of the mounting seat (3).

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