CN211980726U - 18650 lithium cell of taking protect function - Google Patents

Abstract

The utility model discloses a 18650 lithium cells of taking protect function, the protective housing comprises a protective housing, the protective housing inner wall is provided with first spring, and first spring lower extreme is provided with the buffer layer, seted up the opening on the protective housing outer wall, the inside inserting of opening is equipped with the plectrum, and the spout has been seted up at both ends about the opening, the inside buffering ball that is provided with of buffer layer, and the buffer layer lower extreme is provided with first fire-retardant layer, first fire-retardant layer lower extreme is provided with the fire-retardant layer of second, and the fire-retardant layer lower extreme of second is provided with. This 18650 lithium cell of taking protect function is through putting into the inside of protective housing with 18650 lithium cell main part to at inside first spring, buffer layer, buffer ball, the fire-retardant layer of first fire-retardant layer and the fire-retardant layer of second of setting up of protective housing, thereby can play crashproof, fire-proof purpose to 18650 lithium cell main part, improve the security of depositing 18650 lithium cell main part.

Description

18650 lithium cell of taking protect function

Technical Field

The utility model relates to a 18650 lithium cell technical field specifically is a 18650 lithium cells of taking protect function.

Background

18650 is a lithium ion battery's nose ancestor — a standard lithium ion battery model number by the company SONY, japan, for cost saving in the year, where 18 denotes a diameter of 18mm, 65 denotes a length of 65mm, and 0 denotes a cylindrical battery; lithium Battery (Li-Ion, Lithium Ion Battery): the lithium ion battery has the advantages of light weight, large capacity, no memory effect and the like, so the lithium ion battery is generally applied, and a plurality of digital devices adopt the lithium ion battery as a power supply, although the price is relatively expensive; the energy density of the lithium ion battery is high, the capacity of the lithium ion battery is 1.5-2 times that of a nickel-hydrogen battery with the same weight, and the lithium ion battery has a low self-discharge rate; in addition, the advantages of almost no memory effect and no toxic substances of the lithium ion battery are also important reasons for the wide application of the lithium ion battery.

At present, 18650 lithium batteries are usually directly placed in a common box for storage, so that certain potential safety hazards exist when the 18650 lithium batteries are used, explosion is easy to occur, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 18650 lithium cells of taking protect function to solve the problem that the improper easy explosion of 18650 lithium cells of proposing deposits and exists the potential safety hazard in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme, a 18650 lithium cells of taking protect function, the protective housing comprises a protective housing, the protective housing inner wall is provided with first spring, and first spring lower extreme is provided with the buffer layer, the inside buffering ball that is provided with of buffer layer, and the buffer layer lower extreme is provided with first fire-retardant layer, first fire-retardant layer lower extreme is provided with the fire-retardant layer of second, and the fire-retardant layer lower extreme of second is provided with the protective layer to the protective layer lower extreme is provided with 18650 lithium cell main parts.

Preferably, an opening is formed in the outer wall of the protective shell, the shifting piece is inserted into the opening, and sliding grooves are formed in the upper end and the lower end of the opening.

Preferably, an opening is formed in one side of the protective shell, a sealing plate is inserted into the opening, and the sealing plate and the protective shell are movably connected.

Preferably, the first spring, the buffer layer, the buffer ball, the first flame-retardant layer, the second flame-retardant layer and the protective layer are all distributed in an up-down symmetrical mode about a bisector of the protective shell.

Preferably, the plectrum is "T" shape structure, and plectrum and protective housing constitute swing joint.

Preferably, the inside fixture block that is equipped with of inserting of spout, its fixture block lower extreme is connected with the movable block, and is connected with the second spring on the movable block to the second spring top is connected with the plectrum.

Compared with the prior art, the beneficial effects of the utility model are that: this 18650 lithium cell of taking protect function is through putting into the inside of protective housing with 18650 lithium cell main part to at inside first spring, buffer layer, buffer ball, the fire-retardant layer of first fire-retardant layer and the fire-retardant layer of second of setting up of protective housing, thereby can play crashproof, fire-proof purpose to 18650 lithium cell main part, improve the security of depositing 18650 lithium cell main part.

Drawings

Fig. 1 is a schematic structural diagram of a 18650 lithium battery with a protection function according to the present invention;

fig. 2 is a top view of a 18650 lithium battery protection case with protection function according to the present invention;

fig. 3 is a top view of a 18650 lithium battery shifting piece with a protection function according to the present invention;

fig. 4 is a front view of a 18650 lithium battery shifting piece with a protection function of the present invention;

fig. 5 is the utility model relates to a 18650 lithium cell fixture block and spout connection structure sketch of taking protect function.

In the figure: 1. protective housing, 2, 18650 lithium cell main parts, 3, first spring, 4, buffer layer, 5, buffering ball, 6, first fire-retardant layer, 7, the fire-retardant layer of second, 8, protective layer, 9, closing plate, 10, plectrum, 11, second spring, 12, movable block, 13, fixture block, 14, spout.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a 18650 lithium cell of taking protect function, including protective housing 1, protective housing 1 inner wall is provided with first spring 3, protective housing 1 comprises fire-retardant board, thereby can play fire-retardant fireproof effect, reduce 18650 conflagration that the lithium cell main part 2 explodes and arouse, first spring 3 passes through glue fixed connection with protective housing 1, and first spring 3 lower extreme is provided with buffer layer 4, first spring 3 passes through glue fixed connection with buffer layer 4, buffer layer 4 is the rubber material, thereby can prevent 18650 lithium cell main part 2 from receiving the striking, the extrusion, the opening has been seted up on the protective housing 1 outer wall, the opening has all been seted up at the front and back both ends of protective housing 1, poking piece 10 has been inserted to the opening inside, thereby conveniently use poking 18650 lithium cell main part 2 with poking piece 10, take out 18650 lithium cell main part 2 from the inside of protective; an opening is formed in one side of the protective shell 1, the right side of the protective shell 1 is of an opening structure, an opening is also formed in the top of the protective shell 1, a sealing plate 9 is conveniently inserted into the opening, the sealing plate 9 is inserted into the opening, and the sealing plate 9 and the protective shell 1 are movably connected; the plectrum 10 is of a T-shaped structure, and the plectrum 10 is movably connected with the protective shell 1; the first spring 3, the buffer layer 4, the buffer ball 5, the first flame-retardant layer 6, the second flame-retardant layer 7 and the protective layer 8 are vertically and symmetrically distributed relative to a bisector of the protective shell 1, so that the top and the bottom of the 18650 lithium battery main body 2 can be protected; a clamping block 13 is inserted into the sliding groove 14, the sliding groove 14 is in sliding connection with the clamping block 13, so that the position of the shifting piece 10 can be moved, the lower end of the clamping block 13 is connected with a movable block 12, the clamping block 13 is fixedly connected with the movable block 12 through glue, the movable block 12 is connected with a second spring 11, the movable block 12 is fixed with the second spring 11 through glue, so that the shifting piece 10 can be inserted between 18650 lithium battery bodies 2 in the protective shell 1, the top end of the second spring 11 is connected with the shifting piece 10, and the second spring 11 is fixedly connected with the shifting piece 10 through glue; the buffer layer 4 is internally provided with a buffer ball 5, the buffer ball 5 is a rubber ball, the buffer ball 5 is internally provided with a hollow structure, thereby having the characteristic of deformation and improving the buffering effect, the lower end of the buffer layer 4 is provided with a first flame-retardant layer 6, the buffer layer 4 and the first flame-retardant layer 6 are fixed by bolts, the first flame-retardant layer 6 is made of rock wool boards, the lower end of the first flame-retardant layer 6 is provided with a second flame-retardant layer 7, the first flame-retardant layer 6 and the second flame-retardant layer 7 are fixed by bolts, the second flame-retardant layer 7 is made of separation explosion-proof nets, therefore, people can be prevented from being injured by explosion fragments of the 18650 lithium battery main body 2, the lower end of the second flame-retardant layer 7 is provided with the protective layer 8, the second flame-retardant layer 7 is fixedly connected with the protective layer 8 through glue, the protective layer 8 is made of insulating rubber, the protective layer 8 is attached to the 18650 lithium battery main body 2 but not fixed, and the lower end of the protective layer 8 is provided with the 18650 lithium battery main body 2; this 18650 lithium cell of taking protect function is through putting into 18650 lithium cell main part 2 the inside of protective housing 1 to at inside first spring 3, buffer layer 4, buffer ball 5, first fire-retardant layer 6 and the fire-retardant layer 7 of second that sets up of protective housing 1, thereby can play crashproof, fire-proof purpose to 18650 lithium cell main part 2, improve the security of depositing 18650 lithium cell main part 2.

The working principle is as follows: when the 18650 lithium battery with the protection function is used, if the 18650 lithium battery main body 2 needs to be taken out of the protective case 1, the shifting piece 10 on the protective case 1 can be moved to a position between the two 18650 lithium battery main bodies 2, then the shifting piece 10 is pressed to contract the second spring 11 on the shifting piece 10, so that the shifting piece 10 is inserted between the 18650 lithium battery main bodies 2 in the protective case 1, then the sealing plate 9 is taken out of the protective case 1, then the shifting piece 10 is moved to the opening at the right side of the protective case 1, the clamping block 13 on the shifting piece 10 is moved to the right side in the sliding groove 14 on the protective case 1, the shifting piece 10 drives the 18650 lithium battery main body 2 to move to the opening at the right side, so that the 18650 lithium battery main body 2 is taken out of the right side of the protective case 1, and when the 18650 lithium battery main body 2 is stored in the protective case 1, if explosion, and then the first flame retardant layer 6 and the second flame retardant layer 7 are subjected to flame retardance, so that the fire is prevented, and the 18650 lithium battery with the protection function works.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a 18650 lithium batteries of tape protection function, includes protective housing (1), its characterized in that: the inner wall of the protective shell (1) is provided with a first spring (3), the lower end of the first spring (3) is provided with a buffer layer (4), a buffer ball (5) is arranged inside the buffer layer (4), a first flame-retardant layer (6) is arranged at the lower end of the buffer layer (4), a second flame-retardant layer (7) is arranged at the lower end of the first flame-retardant layer (6), a protective layer (8) is arranged at the lower end of the second flame-retardant layer (7), and a 18650 lithium battery main body (2) is arranged at the lower end of the protective layer (8).

2. The 18650 lithium battery of claim 1, characterized in that: an opening is formed in the outer wall of the protective shell (1), a shifting piece (10) is inserted into the opening, and sliding grooves (14) are formed in the upper end and the lower end of the opening.

3. The 18650 lithium battery of claim 1, characterized in that: an opening is formed in one side of the protective shell (1), a sealing plate (9) is inserted into the opening, and the sealing plate (9) is movably connected with the protective shell (1).

4. The 18650 lithium battery of claim 1, characterized in that: the first spring (3), the buffer layer (4), the buffer ball (5), the first flame-retardant layer (6), the second flame-retardant layer (7) and the protective layer (8) are symmetrically distributed up and down about a bisector of the protective shell (1).

5. The 18650 lithium battery of claim 2, characterized in that: the poking sheet (10) is of a T-shaped structure, and the poking sheet (10) is movably connected with the protective shell (1).

6. The 18650 lithium battery of claim 2, characterized in that: a clamping block (13) is inserted into the sliding groove (14), the lower end of the clamping block (13) is connected with a movable block (12), the movable block (12) is connected with a second spring (11), and the top end of the second spring (11) is connected with a shifting piece (10).

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