阅读说明：本技术 一种结构简单的锂离子电池极片快速安装结构 (Simple structure's quick mounting structure of lithium ion battery pole piece ) 是由 汤欣平 于 2020-12-22 设计创作，主要内容包括：本发明公开了一种结构简单的锂离子电池极片快速安装结构,包括锂离子电池本体和安装在锂离子电池本体上的极片,所述锂离子电池本体的顶部开设有环形凹槽,所述锂离子电池本体顶部边缘的外侧开设有环形阶梯,所述环形阶梯的左右两侧壁均开设有容纳槽,所述环形凹槽的内部嵌套有挤压件,所述挤压件包括限位环块和挤压垫,所述限位环块和挤压垫均套接在极片主体的外侧,所述限位环块的左右两侧均开设有螺纹孔,所述锂离子电池本体的顶部边缘套接有防护套。本发明极片与锂离子电池本体之间安装结构简单,安装快捷方便,且安装稳定牢靠,同时能够将极片从锂离子电池本体上拆卸下来进行更换,无需更换整个锂离子电池,降低了损失。(The invention discloses a lithium ion battery pole piece rapid mounting structure with a simple structure, which comprises a lithium ion battery body and a pole piece mounted on the lithium ion battery body, wherein an annular groove is formed in the top of the lithium ion battery body, an annular ladder is formed in the outer side of the edge of the top of the lithium ion battery body, accommodating grooves are formed in the left side wall and the right side wall of the annular ladder, an extrusion piece is nested in the annular groove and comprises a limiting ring block and an extrusion pad, the limiting ring block and the extrusion pad are both sleeved on the outer side of a pole piece main body, threaded holes are formed in the left side and the right side of the limiting ring block, and a protective sleeve is sleeved on the edge of the top of the lithium. The mounting structure between the pole piece and the lithium ion battery body is simple, the mounting is rapid and convenient, the mounting is stable and firm, the pole piece can be dismounted from the lithium ion battery body for replacement, the whole lithium ion battery does not need to be replaced, and the loss is reduced.)

1. The utility model provides a simple structure's quick mounting structure of lithium ion battery pole piece, includes lithium ion battery body (1) and installs pole piece (2) on lithium ion battery body (1), its characterized in that: the lithium ion battery comprises a lithium ion battery body (1), wherein an annular groove (3) is formed in the top of the lithium ion battery body (1), annular steps (4) are formed in the outer side of the top edge of the lithium ion battery body (1), accommodating grooves (5) are formed in the left side wall and the right side wall of each annular step (4), through holes (6) are formed in the accommodating grooves (5), the through holes (6) are communicated with the annular groove (3), a pole piece (2) comprises a pole piece main body (7) and an annular piece (8), the lower portion of the pole piece main body (7) is embedded in the annular groove (3), the annular piece (8) is fixedly sleeved at the bottom of the pole piece main body (7), the annular piece (8) is embedded in the annular groove (3), an extrusion piece (9) is embedded in the annular groove (3), and the extrusion piece (9) comprises a limiting ring block (10), the lithium ion battery comprises an extrusion pad (11), a limiting ring block (10), the limiting ring block (10) and the extrusion pad (11) are arranged in an annular shape, the extrusion pad (11) is located below the limiting ring block (10), the limiting ring block (10) and the extrusion pad (11) are both sleeved on the outer side of a pole piece main body (7), the lower side face of the extrusion pad (11) is in contact with the upper side face of an annular piece (8), threaded holes (13) are formed in the left side and the right side of the limiting ring block (10), the threaded holes (13) correspond to through holes (6), bolts (14) are nested inside the through holes (6), the tail ends of the bolts (14) extend into the threaded holes (13), the bolts (14) are in threaded connection with the threaded holes (13), the heads of the bolts (14) are nested in accommodating grooves (5), a protective sleeve (15) is sleeved on the top edge of a lithium ion battery body (1), and a circular opening (, the diameter of the circular opening (16) is the same as the diameter of the inner ring of the limit ring block (10), and the pole piece (2) is nested in the circular opening (16).

2. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: the protective sleeve (15) is sleeved on the annular ladder (4), the outer side wall of the annular ladder (4) is provided with external threads, the inner wall of the protective sleeve (15) is provided with internal threads matched with the external threads, and the protective sleeve (15) is connected with the annular ladder (4) through the threads.

3. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: the pole piece main body (7) and the annular piece (8) are integrally machined.

4. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: the surface of the pole piece (2) is coated with a conductive metal coating.

5. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: limiting grooves (18) are formed in the outer walls of the front side and the rear side of the annular groove (3), limiting blocks (19) are arranged on the front side and the rear side of the limiting ring block (10), the limiting blocks (19) are embedded in the limiting grooves (18), and the limiting blocks (19) are connected with the limiting grooves (18) in a sliding mode.

6. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: the protective sleeve (15) is made of aluminum-manganese alloy.

7. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: extrusion springs (12) are arranged on the front side, the rear side, the left side and the right side of the bottom of the limiting ring block (10), the upper ends of the extrusion springs (12) are fixedly connected with the bottom of the limiting ring block (10), and the lower ends of the extrusion springs (12) are fixedly connected with the upper side of the extrusion pad (11).

8. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: the extrusion pad (11) is an annular insulating rubber pad.

9. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: and an insulating sealing rubber gasket (17) is fixedly attached to the inner wall of the circular opening (16).

10. The lithium ion battery pole piece rapid mounting structure with a simple structure according to claim 1 is characterized in that: and an insulating dustproof pad (20) is fixedly attached to the inner wall of the top of the protective sleeve (15).

Technical Field

The invention relates to the field of lithium ion batteries, in particular to a quick mounting structure of a lithium ion battery pole piece, which is simple in structure.

Background

Lithium ion batteries belong to the category of secondary batteries, also called secondary batteries or rechargeable batteries. Lithium ion batteries have evolved from lithium batteries. The positive electrode material of the lithium battery is manganese dioxide or thionyl chloride, and the negative electrode is lithium. In a battery, lithium ions move from the negative electrode to the positive electrode during discharge and return during charge. Lithium ion batteries use intercalation lithium compounds as electrode materials compared to the metallic lithium used in non-rechargeable lithium batteries. The three main functional components of a lithium ion battery are the positive and negative electrodes and the electrolyte. The negative electrode of a conventional lithium ion battery is made of carbon, the positive electrode is a metal oxide, and the electrolyte is a lithium salt in an organic solvent. The electrochemical action of the electrodes is reversed between the anode and cathode depending on the direction of current flow through the cell. Lithium ion batteries are commonly used in portable electronic devices and electric automobiles, and are increasingly popular in military and aerospace applications.

At present, after the use of current lithium cell for a long time, the pole piece on the lithium cell is very easily the corrosion condition appears, leads to contact failure, and the pole piece is fixed on the lithium cell, and difficult dismantlement gets off to change, can only change whole lithium cell, has increased the loss.

Therefore, it is necessary to provide a fast mounting structure of a lithium ion battery pole piece with a simple structure to solve the above problems.

Disclosure of Invention

The invention aims to provide a lithium ion battery pole piece rapid mounting structure with a simple structure, wherein the lower end of a pole piece is nested in an annular groove, an extrusion piece is sleeved on the pole piece and nested in the annular groove to extrude the annular piece of the pole piece, the extrusion piece is fixed through a bolt, so that the pole piece is fixed, finally, a protective sleeve is sleeved through a thread, so that the mounting of the pole piece is completed, the mounting structure between the pole piece and a lithium ion battery body is simple, the mounting is rapid and convenient, the mounting is stable and firm, meanwhile, the pole piece can be detached from the lithium ion battery body for replacement, the whole lithium ion battery does not need to be replaced, the loss is reduced, and the defects in the technology are overcome.

In order to achieve the above purpose, the invention provides the following technical scheme: a lithium ion battery pole piece rapid mounting structure with a simple structure comprises a lithium ion battery body and a pole piece mounted on the lithium ion battery body, wherein an annular groove is formed in the top of the lithium ion battery body, an annular ladder is formed in the outer side of the edge of the top of the lithium ion battery body, accommodating grooves are formed in the left side wall and the right side wall of the annular ladder, through holes are formed in the accommodating grooves and communicated with the annular groove, the pole piece comprises a pole piece main body and an annular piece, the lower portion of the pole piece main body is embedded in the annular groove, the annular piece is fixedly sleeved at the bottom of the pole piece main body, the annular piece is embedded in the annular groove, an extrusion piece is embedded in the annular groove and comprises a limiting ring block and an extrusion pad, the extrusion pad is arranged in an annular shape and is positioned below the limiting ring, spacing ring piece and extrusion pad all cup joint in the outside of pole piece main part, the downside of extrusion pad contacts with the side of going up of annular piece, threaded hole has all been seted up to the left and right sides of spacing ring piece, the screw hole is corresponding with the through-hole, the inside nestification of through-hole has the bolt, the tail end of bolt stretches into in the threaded hole, threaded connection between bolt and the screw hole, the head nestification of bolt is in the holding tank, the lag has been cup jointed at the top edge of lithium ion battery body, circular mouth has been seted up at the top of lag, the diameter size of circular mouth is the same with the inner ring diameter size of spacing ring piece, the pole piece is nested in circular mouth.

Preferably, the protective sleeve is sleeved on the annular ladder, the outer side wall of the annular ladder is provided with an external thread, the inner wall of the protective sleeve is provided with an internal thread matched with the external thread, and the protective sleeve is connected with the annular ladder through the thread.

Preferably, the pole piece main body and the annular piece are integrally processed.

Preferably, the surface of the pole piece is coated with a conductive metal coating.

Preferably, the outer walls of the front side and the rear side of the annular groove are provided with limit grooves, the limit grooves are provided with limit blocks on the front side and the rear side of the limit ring block, the limit blocks are nested in the limit grooves, and the limit blocks are connected with the limit grooves in a sliding mode.

Preferably, the protective sleeve is made of aluminum-manganese alloy.

Preferably, the front side, the rear side, the left side and the right side of the bottom of the limit ring block are respectively provided with an extrusion spring, the upper end of each extrusion spring is fixedly connected with the bottom of the limit ring block, and the lower end of each extrusion spring is fixedly connected with the upper side of the extrusion pad.

Preferably, the pressing pad is an annular insulating rubber pad.

Preferably, the inner wall of the round opening is fixedly attached with an insulating sealing rubber gasket.

Preferably, the top inner wall of the protecting sleeve is fixedly attached with an insulating dustproof pad.

In the technical scheme, the invention provides the following technical effects and advantages:

1. the lower end of the pole piece is nested in the annular groove, the extrusion piece is sleeved on the pole piece and is nested in the annular groove to extrude the annular piece of the pole piece, the extrusion piece is fixed through the bolt, so that the pole piece is fixed, and finally the protective sleeve is sleeved through the threads to complete the installation of the pole piece;

2. the extrusion piece is composed of the limit ring block, the extrusion pad and the extrusion spring, the limit ring block on the extrusion piece is fixed with the lithium ion battery body through the bolt, so that the extrusion spring is in a contraction state, the extrusion pad is pushed to extrude the annular sheet on the pole piece through the elasticity of the extrusion spring, the pole piece can be effectively fixed, and the pole piece is stably installed and is not easy to shake;

3. the fixed laminating of the inner wall of circular mouth has insulating sealed cushion, and the fixed laminating of the top inner wall of lag has insulating dustproof pad, through the clearance between insulating sealed cushion sealed circular mouth and the pole piece, insulating dustproof pad seals the clearance between lag top inner wall and the spacing ring piece, has improved sealed effect, can avoid the dust aqueous vapor to get into the annular groove in, has improved the life of lithium ion battery body.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of the invention of FIG. 1 before the pole piece is installed;

FIG. 4 is a schematic view of a pole piece of the present invention;

FIG. 5 is a cross-sectional view of a pole piece of the present invention;

FIG. 6 is a cross-sectional view of an extrusion of the present invention;

FIG. 7 is a cross-sectional view of a protective sleeve of the present invention;

FIG. 8 is a top view of FIG. 3 in accordance with the present invention;

fig. 9 is a top view of the stop ring block of the present invention.

Description of reference numerals:

1 lithium ion battery body, 2 pole pieces, 3 annular grooves, 4 annular steps, 5 holding tanks, 6 through holes, 7 pole piece main parts, 8 annular pieces, 9 extrusion pieces, 10 limit ring blocks, 11 extrusion pads, 12 extrusion springs, 13 threaded holes, 14 bolts, 15 protection sleeves, 16 circular openings, 17 insulating sealing rubber pads, 18 limit grooves, 19 limit blocks and 20 insulating dustproof pads.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The invention provides a lithium ion battery pole piece rapid installation structure with a simple structure as shown in figures 1-5 and 8-9, which comprises a lithium ion battery body 1 and a pole piece 2 installed on the lithium ion battery body 1, wherein the top of the lithium ion battery body 1 is provided with an annular groove 3, the outer side of the edge of the top of the lithium ion battery body 1 is provided with an annular step 4, the left side wall and the right side wall of the annular step 4 are both provided with accommodating grooves 5, the accommodating grooves 5 are internally provided with through holes 6, the through holes 6 are communicated with the annular groove 3, the pole piece 2 comprises a pole piece main body 7 and an annular piece 8, the lower part of the pole piece main body 7 is nested in the annular groove 3, the annular piece 8 is fixedly sleeved at the bottom of the pole piece main body 7, the annular piece 8 is nested in the annular groove 3, and an extrusion piece 9 is, the extrusion piece 9 comprises a limit ring block 10 and an extrusion pad 11, the extrusion pad 11 is arranged in a ring shape, the extrusion pad 11 is located below the limit ring block 10, the limit ring block 10 and the extrusion pad 11 are both sleeved on the outer side of the pole piece main body 7, the lower side surface of the extrusion pad 11 is in contact with the upper side surface of the ring piece 8, the left side and the right side of the limit ring block 10 are both provided with threaded holes 13, the threaded holes 13 correspond to the through holes 6, bolts 14 are nested inside the through holes 6, the tail ends of the bolts 14 extend into the threaded holes 13, the bolts 14 are in threaded connection with the threaded holes 13, the heads of the bolts 14 are nested in the accommodating grooves 5, the top edge of the lithium ion battery body 1 is sleeved with a protective sleeve 15, the top of the protective sleeve 15 is provided with a circular opening 16, and the diameter of the circular opening 16 is the same as the inner ring diameter of the, the pole piece 2 is nested in the circular opening 16.

Further, in the above technical scheme, the protective sleeve 15 is sleeved on the annular step 4, the outer side wall of the annular step 4 is provided with an external thread, the inner wall of the protective sleeve 15 is provided with an internal thread matched with the external thread, the protective sleeve 15 and the annular step 4 are connected through a thread, and the protective sleeve 15 and the annular step 4 are simply and firmly installed through the thread connection, are not easily separated, and are convenient to detach;

further, in the above technical scheme, the pole piece main body 7 and the annular piece 8 are integrally processed, so that the connection strength between the pole piece main body 7 and the annular piece 8 is improved, and the overall strength of the pole piece 2 is improved;

furthermore, in the technical scheme, the surface of the pole piece 2 is coated with the conductive metal coating, so that the wear resistance of the surface of the pole piece 2 is improved, and the service life of the pole piece 2 is prolonged;

further, in the above technical scheme, the outer walls of the front side and the rear side of the annular groove 3 are provided with the limiting grooves 18, the front side and the rear side of the limiting ring block 10 are provided with the limiting blocks 19, the limiting blocks 19 are embedded in the limiting grooves 18, the limiting blocks 19 are slidably connected with the limiting grooves 18, the limiting ring block 10 is conveniently limited by the limiting blocks 19 embedded in the limiting grooves 18, the limiting ring block 10 is prevented from rotating in the annular groove 3, and meanwhile, the threaded holes 13 in the limiting ring block 10 are conveniently aligned with the through holes 6.

Furthermore, in the technical scheme, the protective sleeve 15 is made of aluminum-manganese alloy, so that the strength of the protective sleeve 15 is improved, the protective sleeve 15 is not easy to damage, and the service life of the protective sleeve 15 is prolonged.

The implementation mode is specifically as follows: nesting an annular sheet 8 on a pole piece 2 in an annular groove 3 on a lithium ion battery body 1, sleeving a limiting ring block 10 and an extrusion cushion 11 on an extrusion piece 9 on a pole piece main body 7 on the pole piece 2, nesting the limiting ring block 10 and the extrusion cushion 11 in the annular groove 3, nesting a limiting block 19 on the limiting ring block 10 in a limiting groove 18 on the annular groove 3, nesting the limiting block 19 in the limiting groove 18 to limit the limiting ring block 10 conveniently, avoiding the limiting ring block 10 from rotating in the annular groove 3, aligning a threaded hole 13 on the limiting ring block 10 with a through hole 6 conveniently, contacting the bottom of the extrusion cushion 11 with the upper side surface of the annular sheet 8, extruding the limiting ring block 10, adjusting the height of the limiting ring block 10 in the annular groove 3, aligning a threaded hole 13 on the limiting ring block 10 with the through hole 6, and extending a bolt 14 into the through hole 6, the tail end of the bolt 14 is connected with the threaded hole 13 in a threaded manner, the limit ring block 10 is fixed, the extrusion piece 9 is simple to install and convenient to detach, the tail end of the bolt 14 is nested in the accommodating groove 5, the protective sleeve 15 is sleeved on the outer side of the edge of the top of the lithium ion battery body 1, the pole piece 2 is nested in the circular opening 16 in the protective sleeve 15, the protective sleeve 15 is connected with the annular step 4 in a threaded manner, the protective sleeve 15 is fixed, the protective sleeve 15 is simple and firm to install and convenient to detach, after the protective sleeve 15 is installed, the installation between the pole piece 2 and the lithium ion battery body 1 is realized, the installation structure between the pole piece 2 and the lithium ion battery body 1 is simple and convenient to install, the pole piece 2 can be detached from the lithium ion battery body 1 to replace without replacing the whole lithium ion battery, and loss is reduced, lag 15 adopts the processing of aluminium manganese alloy to make, lag 15's intensity has been improved, make lag 15 not fragile, lag 15's life has been improved, the surface coating of pole piece 2 has conductive metal coating, pole piece 2's electric conductive property has been improved, the wear resistance on pole piece 2 surface has been improved simultaneously, pole piece 2's life has been improved, this embodiment has specifically solved the pole piece that exists among the prior art and has fixed on the lithium cell, difficult dismantlement gets off to change, can only change whole lithium cell, the problem of loss has been increased.

As shown in fig. 1-2 and fig. 6-7, in the above technical solution, the four sides of the bottom of the limit ring block 10, front, back, left and right, are provided with the extrusion springs 12, the upper end of the extrusion spring 12 is fixedly connected with the bottom of the limit ring block 10, the lower end of the extrusion spring 12 is fixedly connected with the upper side of the extrusion pad 11, after the limit ring block 10 is fixed, the extrusion spring 12 is in a contracted state, and the extrusion pad 11 is pushed to extrude the annular sheet 8 on the pole piece 2 by the elastic force of the extrusion spring 12, so that the pole piece 2 can be effectively fixed, and the pole piece 2 is stably installed and is not easy to shake;

further, in the above technical solution, the extrusion pad 11 is an annular insulating rubber pad, which can protect the annular sheet 8, avoid abrasion of the annular sheet 8, and improve the service life of the annular sheet 8;

further, in the above technical scheme, the inner wall of the circular opening 16 is fixedly attached with the insulating sealing rubber gasket 17, and the gap between the circular opening 16 and the pole piece 2 is sealed by the insulating sealing rubber gasket 17, so that the sealing effect is improved, dust and moisture are prevented from entering the annular groove 3 through the gap between the circular opening 16 and the pole piece 2, and the service life of the lithium ion battery body 1 is prolonged;

further, in the above technical scheme, the insulating dustproof pad 20 is fixedly attached to the inner wall of the top of the protection sleeve 15, and the gap between the inner wall of the top of the protection sleeve 15 and the limit ring block 10 is sealed by the insulating dustproof pad 20, so that the sealing effect is improved, dust and moisture can be prevented from entering the annular groove 3, and the service life of the lithium ion battery body 1 is prolonged;

the implementation mode is specifically as follows: after the limit ring block 10 is fixed, the extrusion spring 12 is in a contraction state, the extrusion pad 11 is pushed to extrude the annular sheet 8 on the pole piece 2 by the elasticity of the extrusion spring 12, the pole piece 2 can be effectively fixed, the pole piece 2 is stably installed and is not easy to shake, the extrusion pad 11 is arranged as an annular insulating rubber pad, the annular sheet 8 can be protected, the annular sheet 8 is prevented from being abraded, the service life of the annular sheet 8 is prolonged, the insulating sealing rubber pad 17 is fixedly attached to the inner wall of the circular opening 16, the insulating dustproof pad 20 is fixedly attached to the inner wall of the top of the protection cover 15, the gap between the circular opening 16 and the pole piece 2 is sealed by the insulating sealing rubber pad 17, the gap between the inner wall of the top of the protection cover 15 and the limit ring block 10 is sealed by the insulating dustproof pad 20, the sealing effect is improved, dust and moisture can be prevented from entering the annular groove 3, and the service life of the lithium ion, this embodiment has specifically solved the dust aqueous vapor that exists among the prior art and has got into lithium ion battery through the clearance of pole piece installation easily, influences lithium ion battery's life's problem.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.