CN219497982U - 18650 lithium battery safety arrangement - Google Patents

Abstract

The utility model belongs to the technical field of lithium batteries, and particularly relates to a 18650 lithium battery safety protection device which comprises a protection shell, wherein a plurality of rubber blocks are arranged on the inner side of the protection shell, a battery is arranged on the inner side of the protection shell, a base and a bottom plate are arranged outside the protection shell, two symmetrically distributed connecting rods are fixedly connected to the outer part of the base, a sliding plate is connected to the outer part of the connecting rod in a sliding manner, a plug tube is fixedly connected to the top of the sliding plate, damping springs are fixedly connected to the bottom of the sliding plate, two symmetrically distributed damping springs are fixedly connected to the bottom of the sliding plate, a limiting plate is fixedly connected to the top of the connecting rod, and a plug rod is fixedly connected to the outer part of the bottom plate. This 18650 lithium cell safety arrangement through setting up rubber piece, battery, base, bottom plate, connecting rod, slide, cartridge, damping spring, buffer spring, limiting plate, inserted bar to realize the protection to the group battery, and then avoided the group battery to receive the problem that can take place explosion or spontaneous combustion after the impact, further promoted battery safety in utilization.

Description

18650 lithium battery safety arrangement

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a 18650 lithium battery safety protection device.

Background

18650 is a lithium ion battery model, which is a standard lithium ion battery model for cost saving purposes in the current year by SONY corporation of japan, where 18 denotes a diameter of 18mm,65 denotes a length of 65mm, and 0 denotes a cylindrical battery.

At present, most 18650 lithium batteries are installed and fixed into a battery module through insulating and flame-retardant bracket materials, and the battery module forms a battery pack in different serial-parallel connection modes, so that the 18650 lithium batteries are easy to explode if suffering from external extreme conditions, such as severe collision, extrusion deformation, metal piercing, circuit short circuit and the like.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a 18650 lithium battery safety protection device, which solves the problems that the 18650 lithium battery is easy to explode if the 18650 lithium battery is subjected to external extreme conditions such as severe collision, extrusion deformation, metal piercing, circuit short circuit and the like in a mode that the 18650 lithium battery is assembled and fixed into a battery module by insulating and flame-retardant bracket materials in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a 18650 lithium cell safety arrangement, including the protective housing, the inboard of protective housing is provided with a plurality of rubber blocks, the inboard of protective housing is provided with the battery, the outside of protective housing is provided with a plurality of base and the bottom plate of equiangular distribution through the bolt, the outside fixedly connected with of base two symmetric distributions's connecting rod, the outside sliding connection of connecting rod has the slide, the top fixedly connected with of slide inserts a section of thick bamboo, the bottom fixedly connected with damping spring of slide, the bottom fixedly connected with of slide two symmetric distributions's damping spring, the top fixedly connected with limiting plate of connecting rod, the outside fixedly connected with inserted bar of bottom plate.

As a preferable technical scheme of the utility model, the protective shell is made of silicon alloy metal, an opening is arranged outside the protective shell, four groups of equiangularly distributed threaded holes are arranged outside the protective shell, each group is not less than three, and the specification of each group of threaded holes is matched with that of bolts.

As a preferable technical scheme of the utility model, each base and each bottom plate are respectively vertically distributed, the specification and the size of each base are the same, the specification and the size of each bottom plate are the same, and the size of each base and the size of each bottom plate are matched with the protective shell.

As a preferable technical scheme of the utility model, the two connecting rods are both in sliding connection with the sliding plate, and the tops of the two connecting rods are both fixedly connected with the limiting plate.

As a preferable technical scheme of the utility model, the specification of the plug cylinder is matched with the plug rod.

As a preferable technical scheme of the utility model, one ends of the two buffer springs are fixedly connected to the bottom of the sliding plate, the other ends of the two buffer springs are fixedly connected to the top of the base, the two buffer springs are respectively distributed on the outer sides of the two connecting rods, the buffer springs are distributed between the two buffer springs, and one ends of the buffer springs, which are far away from the sliding plate, are fixedly connected to the top of the base.

Compared with the prior art, the utility model provides a 18650 lithium battery safety protection device, which has the following beneficial effects:

this 18650 lithium battery safety arrangement, through setting up the rubber brick, a battery, a pedestal, the bottom plate, the connecting rod, the slide, insert a section of thick bamboo, damping spring, buffer spring, the limiting plate, the inserted bar, during the use, the user inserts the protective housing with the battery, the inboard rubber brick of protective housing can also fix the position of battery when protecting the battery, later the user inserts the outside inserted bar of bottom plate into another protective housing outside and inserts a section of thick bamboo, connect between two protective housings at this moment, form the group battery, when the group battery receives the impact, the inserted bar can drive and insert a section of thick bamboo motion, insert a section of thick bamboo can drive the slide and pass through the connecting rod motion, the slide motion can extrude buffer spring and damping spring, at this moment buffer spring can cushion impact force, and damping spring can cushion impact force, thereby realize the protection to the group battery, and then avoided the group battery to receive the problem that can take place explosion or spontaneous combustion after the impact, further promote the battery safety in utilization.

Drawings

FIG. 1 is a schematic front view of the present utility model;

FIG. 2 is an enlarged schematic view of a partial structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

fig. 4 is a schematic view of a partial structure of the present utility model in three dimensions.

In the figure: 1. a protective shell; 2. a rubber block; 3. a battery; 4. a base; 5. a bottom plate; 6. a connecting rod; 7. a slide plate; 8. a plug cylinder; 9. a damping spring; 10. a buffer spring; 11. a limiting plate; 12. and a plunger.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, in the present embodiment: the utility model provides a 18650 lithium cell safety arrangement, including protective housing 1, protective housing 1's inboard is provided with a plurality of rubber blocks 2, protective housing 1's inboard is provided with battery 3, protective housing 1's outside is provided with a plurality of base 4 and bottom plate 5 of equiangular distribution through the bolt, the outside fixedly connected with connecting rod 6 of base 4, the outside sliding connection of connecting rod 6 has slide 7, slide 7's top fixedly connected with cartridge 8, slide 7's bottom fixedly connected with damping spring 9, slide 7's bottom fixedly connected with two symmetrically distributed's damping spring 10, connecting rod 6's top fixedly connected with limiting plate 11, bottom plate 5's outside fixedly connected with inserted bar 12.

The protective housing 1 is made of silicon alloy metal and the outside of the protective housing 1 is provided with an opening, so that the strength of the protective housing 1 is improved, the outside of the protective housing 1 is provided with four groups of screw holes distributed at equal angles, each group of screw holes has the specification matched with bolts, so that a user can conveniently install the base 4 and the bottom plate 5 through the bolts, each base 4 and each bottom plate 5 are respectively vertically distributed and have the same specification size of each base 4, each bottom plate 5 has the same specification size, each base 4 and bottom plate 5 are matched with the protective housing 1, two connecting rods 6 are in sliding connection with the sliding plate 7, the tops of the two connecting rods 6 are fixedly connected with the limiting plates 11, the connecting rods 6 can limit the sliding plate 7, the using effect of the buffer springs 10 and the damping springs 9 is improved, the limiting plates 11 can limit the sliding plate 7, so as to avoid the problem that the sliding plate 7 is excessively slid and separated from the connecting rod 6, the specification of the inserting cylinder 8 is matched with that of the inserting rod 12, one ends of the two buffer springs 10 are fixedly connected to the bottom of the sliding plate 7, and the other ends of the two buffer springs 10 are fixedly connected to the top of the base 4, so that a user can insert the inserting rod 12 outside the bottom plate 5 outside the protective shell 1 into the inserting cylinder 8 outside the other protective shell 1, at the moment, the two protective shells 1 are connected, a battery pack is formed, when the battery pack is impacted, the inserting rod 12 drives the inserting cylinder 8 to move, the inserting cylinder 8 drives the sliding plate 7 to move through the connecting rod 6, the sliding plate 7 moves to squeeze the buffer springs 10 and the damping springs 9, at the moment, the buffer springs 10 can buffer the impact force, and the damping springs 9 can damp the impact force, thereby realizing the protection of the battery pack, and then avoided the group battery to receive the problem that can take place explosion or spontaneous combustion after the impact, further promoted battery 3 safety in utilization, two buffer springs 10 distribute respectively in the outside of two connecting rods 6, and buffer spring 9 distributes between two buffer springs 10 and buffer spring 9 keep away from the one end fixed connection of slide 7 at the top of base 4.

The working principle and the using flow of the utility model are as follows: during the use, the user inserts the outside inserted bar 12 of protective housing 1 outside bottom plate 5 into another protective housing 1 outside and inserts a section of thick bamboo 8, connect between two protective housing 1 at this moment, form the group battery, when the group battery received the impact, inserted bar 12 can drive and insert a section of thick bamboo 8 motion, insert a section of thick bamboo 8 and can drive slide 7 and pass through connecting rod 6 motion, slide 7 motion can extrude buffer spring 10 and damping spring 9, at this moment buffer spring 10 can cushion the impact force, and damping spring 9 can cushion the impact force, thereby realize the protection to the group battery, and then avoided the group battery to receive the problem that can take place explosion or spontaneous combustion after the impact, further promote battery 3 safety in utilization.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. 18650 lithium cell safety arrangement, including protective housing (1), its characterized in that: the inside of protective housing (1) is provided with a plurality of rubber blocks (2), the inboard of protective housing (1) is provided with battery (3), the outside of protective housing (1) is provided with base (4) and bottom plate (5) of a plurality of equiangular distributions through the bolt, the outside fixedly connected with of base (4) connecting rod (6) of symmetric distribution, the outside sliding connection of connecting rod (6) has slide (7), the top fixedly connected with cartridge (8) of slide (7), the bottom fixedly connected with damping spring (9) of slide (7), the bottom fixedly connected with two symmetric distribution's of slide (7) buffer spring (10), the top fixedly connected with limiting plate (11) of connecting rod (6), the outside fixedly connected with inserted bar (12) of bottom plate (5).

2. The 18650 lithium battery safety protection device according to claim 1, wherein: the novel anti-theft protection device is characterized in that the protection shell (1) is made of silicon alloy metal, an opening is formed in the outer portion of the protection shell (1), four groups of threaded holes distributed at equal angles are formed in the outer portion of the protection shell (1), each group of threaded holes is not less than three, and the specification of each group of threaded holes is matched with that of bolts.

3. The 18650 lithium battery safety protection device according to claim 1, wherein: each base (4) and each bottom plate (5) are respectively vertically distributed, the specification and the size of each base (4) are the same, the specification and the size of each bottom plate (5) are the same, and the sizes of each base (4) and each bottom plate (5) are matched with the protective housing (1).

4. The 18650 lithium battery safety protection device according to claim 1, wherein: the two connecting rods (6) are both in sliding connection with the sliding plate (7), and the tops of the two connecting rods (6) are both fixedly connected with the limiting plate (11).

5. The 18650 lithium battery safety protection device according to claim 1, wherein: the specification of the plug tube (8) is matched with that of the plug rod (12).

6. The 18650 lithium battery safety protection device according to claim 1, wherein: two the equal fixed connection of one end of buffer spring (10) is in the bottom of slide (7) and the equal fixed connection of the other end of two buffer springs (10) is at the top of base (4), two buffer springs (10) distribute respectively in the outside of two connecting rods (6), damping spring (9) distribute between two buffer springs (10) and damping spring (9) keep away from the one end fixed connection of slide (7) at the top of base (4).