CN215342782U

CN215342782U - Plastic sealing structure of lithium battery

Info

Publication number: CN215342782U
Application number: CN202121508920.6U
Authority: CN
Inventors: 武英杰; 雷明珠; 柳永正; 卢鑫芳
Original assignee: Huzhou Kuai Donkey Technology Co ltd
Current assignee: Huzhou Kuai Donkey Technology Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-12-28
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a plastic sealing structure of a lithium battery, which relates to the technical field of lithium batteries and comprises a plastic shell, a cover plate and a sealing mechanism, wherein a lithium battery body is arranged in the plastic shell, the cover plate is arranged on the plastic shell, the sealing mechanism is arranged on the plastic shell and comprises a placing block and a sealing sleeve, the placing block is fixedly arranged at the bottom of the outer wall of the cover plate, and the sealing sleeve is sleeved on the outer wall of the placing block and used for sealing the plastic of the lithium battery. This plastic seal structure of lithium cell, install on placing the piece through the seal cover, and install the apron on plastic casing through the bolt, can realize the sealed to lithium cell casing, inside avoiding leading to dust and moisture to enter into the shell, cause the destruction to the lithium cell, the life of lithium cell has been reduced, this plastic seal structure of lithium cell, install on the installation piece through the flexure strip, use fixed part to fix the flexure strip, can improve the fastness of connection, be convenient for to lithium cell casing's dismantlement and installation, it is troublesome to avoid the dismouting.

Description

Plastic sealing structure of lithium battery

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a plastic sealing structure of a lithium battery.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution and using lithium metal or a lithium alloy as a negative electrode material, and can be roughly classified into two types: lithium metal batteries and lithium ion batteries, lithium ion batteries do not contain metallic lithium and can be charged, the fifth generation products of rechargeable batteries, namely lithium metal batteries, are produced in 1996, the safety, specific capacity, self-discharge rate and cost performance ratio of the rechargeable batteries are superior to those of lithium ion batteries, and the lithium metal has very high requirements on the environment due to the very active chemical characteristics of the lithium metal, so that the lithium batteries become mainstream along with the development of scientific technology.

When current lithium battery case packs, can't seal the protection to the lithium cell of inside, lead to dust and moisture to enter into inside the shell easily, cause the destruction to the lithium cell, the life of lithium cell has been reduced, the plastic shell of current lithium cell generally uses upper and lower casing combination to form, install together through ten nuts, make cost high, the dismouting is troublesome, and it is not hard up to take place the junction easily for long-time use, easily cause sealing performance's reliability to reduce, the security performance is low, use for people causes certain inconvenience.

SUMMERY OF THE UTILITY MODEL

The utility model provides a plastic sealing structure of a lithium battery, which is characterized in that a sealing sleeve is arranged on a placing block, a cover plate is arranged on a plastic shell through a bolt, so that the shell of the lithium battery can be sealed, dust and moisture are prevented from entering the shell to damage the lithium battery, the service life of the lithium battery is shortened, the elastic sheet is arranged on an installing block through the elastic sheet, and the elastic sheet is fixed by using a fixing part, so that the connection firmness can be improved, the lithium battery shell is convenient to disassemble and install, and the problems of troublesome disassembly and assembly and loosening of a connecting part, which cause the reduction of the reliability of the sealing performance, are avoided.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a plastic sealing structure of a lithium battery includes:

a plastic shell with a lithium battery body inside;

the cover plate is arranged on the plastic shell;

the sealing mechanism is arranged on the plastic shell and comprises a placing block and a sealing sleeve, the placing block is fixedly arranged at the bottom of the outer wall of the cover plate, and the sealing sleeve is sleeved on the outer wall of the placing block and used for sealing the plastic of the lithium battery; and

the mounting mechanisms are arranged in two groups, and the mounting mechanisms are arranged on two sides of the outer wall of the cover plate, so that the lithium battery can be mounted and dismounted conveniently.

Further, every group installation mechanism all includes installation component and fixed part, installation component locates on the apron, fixed part locates on the installation component, installation component includes flexure strip, mounting hole and installation piece, the flexure strip is fixed to be set up in outer wall one side of apron, the mounting hole is seted up in outer wall one side of flexure strip, the installation piece is fixed to be set up in outer wall one side of plastic casing and is close to top edge, mounting hole and installation piece sliding fit.

Further, every group the fixed part all includes mounting groove, fixed strip, fixed slot, compression spring, fixed block and standing groove, the mounting groove is seted up in outer wall one side of installation piece, fixed strip and mounting groove sliding fit, fixed slot, compression spring, fixed block and standing groove all are equipped with two, every the outer wall both sides of fixed strip are all seted up to the fixed slot, every compression spring all fixes and sets up in outer wall one side of fixed slot, every the fixed block is all fixed to be set up in compression spring's one end, every the standing groove is all seted up in the inner wall both sides of mounting groove, every the mounting groove all with fixed block sliding fit.

Further, the fixed frame that is provided with in outer wall top of plastic casing, the fixed bearer bar that is provided with of inner wall of fixed frame, the inner wall of bearer bar slides and inlays the outer wall of locating the lithium cell body and be close to bottom edge.

Furthermore, the lithium battery further comprises two groups of protection mechanisms which are arranged on two sides of the outer wall of the lithium battery body.

Further, every group protection machanism all includes rubber slab, damping spring and buffer board, the rubber slab is fixed to be set up in outer wall one side of the lithium cell body, damping spring is equipped with a plurality ofly, every damping spring sets up in outer wall one side of rubber slab along vertical direction equidistance is fixed, the buffer board is fixed to be set up in damping spring's outer wall one side.

Furthermore, the inner wall of the plastic shell is bonded with insulating paper, and the cross section of the cover plate is rectangular.

The utility model provides a plastic sealing structure of a lithium battery. The method has the following beneficial effects:

(1) this plastic seal structure of lithium cell installs on placing the piece through the seal cover to install the apron on plastic casing through the bolt, can realize the sealed to lithium cell casing, avoid leading to inside dust and moisture enter into the shell, lead to the fact destruction to the lithium cell, reduced the life of lithium cell.

(2) This plastic seal structure of lithium cell installs on the installation piece through the flexure strip, uses fixed part to fix the flexure strip, can improve the fastness of connecting, is convenient for to lithium cell housing's dismantlement and installation, avoids the dismouting troublesome and junction not hard up, leads to sealing performance's reliability to reduce.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is an exploded view of the protection mechanism of the present invention;

fig. 5 is an enlarged view of the utility model at a in fig. 3.

In the figure: 1. a plastic shell; 2. a lithium battery body; 3. a cover plate; 4. a sealing mechanism; 401. placing the blocks; 402. sealing sleeves; 5. an installation mechanism; 501. an elastic sheet; 502. mounting holes; 503. mounting blocks; 504. mounting grooves; 505. a fixing strip; 506. fixing grooves; 507. a compression spring; 508. a fixed block; 509. a placement groove; 6. a protection mechanism; 601. a rubber plate; 602. a damping spring; 603. a buffer plate; 7. a fixing frame; 8. a protective frame; 9. and (4) insulating paper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1-5, the present invention provides a technical solution: a plastic sealing structure of a lithium battery includes:

a plastic shell 1 with a lithium battery body 2 inside;

the cover plate 3 is arranged on the plastic shell 1;

the sealing mechanism 4 is arranged on the plastic shell 1, the sealing mechanism 4 comprises a placing block 401 and a sealing sleeve 402, the placing block 401 is fixedly arranged at the bottom of the outer wall of the cover plate 3, and the sealing sleeve 402 is sleeved on the outer wall of the placing block 401 and used for sealing the plastic of the lithium battery; and

and the two groups of mounting mechanisms 5 are arranged, and the two groups of mounting mechanisms 5 are arranged on two sides of the outer wall of the cover plate 3, so that the lithium battery can be conveniently mounted and dismounted.

In this embodiment: through plastic housing 1, can realize the protection to lithium cell body 2, apron 3 passes through the bolt mounting in plastic housing 1's outer wall top, through apron 3, place piece 401 and seal cover 402, can realize the sealing to plastic housing 1, avoid leading to inside dust and moisture enter into the shell, cause the destruction to the lithium cell, the life of lithium cell has been reduced, it is the annular form of rectangle to place piece 401, the outer wall of seal cover 402 is laminated plastic housing 1's inner wall all around and is close to top edge, also laminate the outer wall top of lithium cell body 2 simultaneously, the material of seal cover 402 is rubber, it is insulating to have.

Specifically, every group installation mechanism 5 all includes installation component and fixed part, and the installation component is located on apron 3, and fixed part locates on the installation component, and the installation component includes flexure strip 501, mounting hole 502 and installation piece 503, and flexure strip 501 is fixed to be set up in outer wall one side of apron 3, and mounting hole 502 is seted up in flexure strip 501's outer wall one side, and installation piece 503 is fixed to be set up in outer wall one side of plastic housing 1 and is close to top edge, mounting hole 502 and installation piece 503 sliding fit.

In this embodiment: through flexure strip 501, mounting hole 502 and installation piece 503, can further install apron 3, prevent that the bolt live time from having lasted, it is not hard up easily, lead to sealing performance's reliability to reduce, the security performance is low, the use of giving people causes certain inconvenience, and flexure strip 501 is the plastics shell fragment, can break off with the fingers and thumb to both sides for installation piece 503 enters into in the mounting hole 502.

Specifically, each group of fixing parts includes a mounting groove 504, a fixing strip 505, a fixing groove 506, a compression spring 507, a fixing block 508 and a placement groove 509, the mounting groove 504 is opened on one side of the outer wall of the mounting block 503, the fixing strip 505 is in sliding fit with the mounting groove 504, the fixing groove 506, the compression spring 507, the fixing block 508 and the placement groove 509 are both provided with two fixing grooves, each fixing groove 506 is opened on both sides of the outer wall of the fixing strip 505, each compression spring 507 is fixedly arranged on one side of the outer wall of the fixing groove 506, each fixing block 508 is fixedly arranged on one end of the compression spring 507, each placement groove 509 is opened on both sides of the inner wall of the mounting groove 504, and each mounting groove 504 is in sliding fit with the fixing block 508.

In this embodiment: by the fixing member, the elastic piece 501 can be prevented from falling off the mounting block 503, the fixing bar 505 can be placed by the mounting groove 504, and the fixing bar 505 can be fixed in the mounting groove 504 by the fixing groove 506, the compression spring 507, the fixing block 508 and the placing groove 509.

Specifically, the fixed frame 7 that is provided with in outer wall top of plastic casing 1, the fixed bearer bar 8 that is provided with of inner wall of fixed frame 7, the inner wall of bearer bar 8 slide to inlay and locate the outer wall of the lithium cell body 2 and be close to bottom edge.

In this embodiment: through fixed frame 7 and protective frame 8, can realize the installation and place lithium cell 2, through protective frame 8, can realize the protection to lithium cell 2, the material of protective frame 8 is rubber.

Specifically, still include protection machanism 6, protection machanism 6 is equipped with two sets ofly, and two sets of protection machanism 6 all locate the outer wall both sides of the lithium cell body 2.

In this embodiment: through protection mechanism 6, can realize the protection to the lithium cell body 2, prevent that the lithium cell body 2 from receiving external striking and exploding, increaseed user safety in utilization.

Specifically, each group of protection mechanisms 6 comprises a rubber plate 601, a damping spring 602 and a buffer plate 603, the rubber plate 601 is fixedly arranged on one side of the outer wall of the lithium battery body 2, the damping spring 602 is provided with a plurality of damping springs, each damping spring 602 is fixedly arranged on one side of the outer wall of the rubber plate 601 along the vertical direction at equal intervals, and the buffer plate 603 is fixedly arranged on one side of the outer wall of the damping spring 602.

In this embodiment: through rubber slab 601, damping spring 602 and buffer board 603, can prevent that lithium cell body 2 from receiving external striking and exploding, damping spring 602 and buffer board 603 have played the effect of buffering and damping, and the material of buffer board 603 is rubber.

Specifically, the inner wall of the plastic shell 1 is bonded with the insulating paper 9, and the cross section of the cover plate 3 is rectangular.

In this embodiment: the insulating paper 9 prevents the lithium battery body 2 from being discharged, thereby increasing the safety of the user.

When the lithium battery installing device is used, the sealing sleeve 402 is firstly sleeved on the placing block 401, the cover plate 3 is covered, the sealing sleeve 402 is tightly attached to the upper portion of the inner wall of the plastic shell 1 and the lithium battery body 2, the cover plate 3 is fixed to the top of the plastic shell 1 through bolts, sealing of a lithium battery shell can be achieved, dust and moisture are prevented from entering the shell and damaging the lithium battery, the service life of the lithium battery is shortened, the elastic sheet 501 is pulled off, the installing block 503 is placed in the installing hole 502, the bolt is prevented from being used for a long time and is prevented from being loosened easily, the fixing strip 505 is inserted into the installing groove 504, the fixing block 508 comes out of the fixing groove 506 and enters the placing groove 509 under the action of the elastic force of the compression spring 507, the elastic sheet 501 is prevented from falling off from the installing block 503, the connection firmness is improved, the lithium battery shell is convenient to detach and install, and avoid troublesome detachment and looseness of joints, resulting in a decrease in reliability of sealing performance.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A plastic seal structure of lithium cell which characterized in that includes:

a plastic shell (1) with a lithium battery body (2) arranged inside;

the cover plate (3) is arranged on the plastic shell (1);

the sealing mechanism (4) is arranged on the plastic shell (1), the sealing mechanism (4) comprises a placing block (401) and a sealing sleeve (402), the placing block (401) is fixedly arranged at the bottom of the outer wall of the cover plate (3), and the sealing sleeve (402) is sleeved on the outer wall of the placing block (401) and used for sealing the plastic of the lithium battery; and

and the mounting mechanisms (5) are arranged in two groups, namely the mounting mechanisms (5) are arranged on two sides of the outer wall of the cover plate (3), so that the lithium battery can be mounted and dismounted conveniently.

2. The plastic sealing structure of a lithium battery as claimed in claim 1, wherein: every group installation mechanism (5) all include installation component and fixed part, installation component locates on apron (3), fixed part locates on the installation component, installation component includes flexure strip (501), mounting hole (502) and installation piece (503), flexure strip (501) are fixed to be set up in outer wall one side of apron (3), outer wall one side of flexure strip (501) is seted up in mounting hole (502), installation piece (503) are fixed to be set up in outer wall one side of plastic casing (1) and are close to top edge, mounting hole (502) and installation piece (503) sliding fit.

3. The plastic sealing structure of a lithium battery as claimed in claim 2, wherein: each group of the fixing parts comprises a mounting groove (504), a fixing strip (505), a fixing groove (506), a compression spring (507), a fixing block (508) and a placing groove (509), the mounting groove (504) is arranged on one side of the outer wall of the mounting block (503), the fixing strip (505) is in sliding fit with the mounting groove (504), fixed slot (506), compression spring (507), fixed block (508) and standing groove (509) all are equipped with two, every fixed slot (506) all set up in the outer wall both sides of fixed strip (505), every compression spring (507) all fixed the setting in outer wall one side of fixed slot (506), every fixed block (508) all fixed the setting in the one end of compression spring (507), every standing groove (509) all set up in the inner wall both sides of mounting groove (504), every mounting groove (504) all with fixed block (508) sliding fit.

4. The plastic sealing structure of a lithium battery as claimed in claim 1, wherein: the fixed frame (7) that is provided with in outer wall top of plastic casing (1), the fixed protective frame (8) that is provided with of inner wall of fixed frame (7), the outer wall that the inner wall slip of protective frame (8) inlayed and located lithium cell body (2) is close to bottom edge.

5. The plastic sealing structure of a lithium battery as claimed in claim 4, wherein: the lithium battery protection device is characterized by further comprising two groups of protection mechanisms (6), wherein the two groups of protection mechanisms (6) are arranged on two sides of the outer wall of the lithium battery body (2).

6. The plastic sealing structure of a lithium battery as claimed in claim 5, wherein: every group protection machanism (6) all include rubber slab (601), damping spring (602) and buffer board (603), rubber slab (601) are fixed to be set up in outer wall one side of the lithium cell body (2), damping spring (602) are equipped with a plurality ofly, every damping spring (602) are fixed to be set up in outer wall one side of rubber slab (601) along vertical direction equidistance, buffer board (603) are fixed to be set up in outer wall one side of damping spring (602).

7. The plastic sealing structure of a lithium battery as claimed in claim 1, wherein: the inner wall of the plastic shell (1) is bonded with insulating paper (9), and the cross section of the cover plate (3) is rectangular.