CN213026392U

CN213026392U - Lithium ion battery with combined structure

Info

Publication number: CN213026392U
Application number: CN202022071442.9U
Authority: CN
Inventors: 樊有佑; 龚纯飞
Original assignee: Longyan Jiabangfu New Energy Technology Co ltd
Current assignee: Longyan Jiabangfu New Energy Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-04-20
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a lithium ion battery with a combined structure, which comprises a battery shell and an electric core, wherein the battery shell is of a cylindrical structure; a first plane is arranged at the joint of the positive electrode end and the middle part of the battery shell; a second plane is arranged at the joint of the negative end and the middle part of the battery shell; a first magnetic ring and a second magnetic ring are arranged in the first plane and the second plane respectively; the positive end of the battery shell is sleeved with a connecting mechanism which is used for being connected with other lithium ion batteries in series; the connecting mechanism can be connected along the outer side surface of the positive end in a sliding manner; the connecting mechanism comprises a sleeve with a circular cylindrical structure, and a sliding block is arranged on the inner side of the lower end of the sleeve; and a sliding groove is formed in the position, corresponding to the sliding block, of the outer side surface of the positive terminal of the battery shell. The utility model discloses a well simple structure has, reasonable in design need not be with the help of extra instrument, can realize a plurality of lithium ion battery and establish ties to lithium ion battery's heat dispersion and the life-span of receiving have been improved simultaneously.

Description

Lithium ion battery with combined structure

Technical Field

The utility model relates to a lithium cell technical field especially relates to a lithium ion battery with integrated configuration.

Background

The lithium ion battery in the prior art is of a single independent structure, and when a plurality of independent lithium ion batteries are required to be connected in series for use, the lithium ion batteries need to be installed and connected by means of an additional tool, so that the lithium ion battery is very inconvenient;

in addition, in order to effectively discharge gas generated during formation of the lithium ion battery in the prior art and avoid causing the cycle performance of the battery cell, a through hole is usually formed in a shell of the lithium ion battery to discharge the gas, but the battery cell is in contact with external air due to long-time exposure of the through hole, so that the oxidation of a battery cell material is caused, and the service life of the lithium ion battery is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a lithium ion battery with integrated configuration has simple structure, reasonable in design, need not be with the help of extra instrument, can realize a plurality of lithium ion battery and establish ties to lithium ion battery's heat dispersion and the life-span of receiving have been improved simultaneously.

The utility model discloses the technical scheme who adopts as follows:

a lithium ion battery with a combined structure comprises a battery shell and a battery core which are of cylindrical structures, and is characterized in that the outer diameters of a positive electrode end and a negative electrode end of the battery shell are the same and are both smaller than the outer diameter of the middle part; a first plane is arranged at the joint of the positive electrode end and the middle part of the battery shell; a second plane is arranged at the joint of the negative end and the middle part of the battery shell; a first magnetic ring and a second magnetic ring are arranged in the first plane and the second plane respectively;

the positive end of the battery shell is sleeved with a connecting mechanism which is used for being connected with other lithium ion batteries in series; the connecting mechanism can be connected along the outer side surface of the positive electrode end in a sliding mode.

Preferably, the connecting mechanism comprises a sleeve with a circular cylindrical structure, and a sliding block is arranged on the inner side of the lower end of the sleeve; a sliding groove is formed in the position, corresponding to the sliding block, of the outer side surface of the positive electrode end of the battery shell; the sliding groove is arranged in parallel with the battery shell.

Preferably, a clamping groove communicated with the sliding groove is formed in one end, close to the first plane, of the sliding groove; the clamping groove is perpendicular to the sliding groove; the external member can rotate relative to the battery shell, so that the sliding block is clamped and connected with the clamping groove.

Preferably, the outer side of the sleeve is provided with first through holes distributed in an array; when the sliding block is far away from the clamping groove, a second through hole is formed in the position, corresponding to the first through hole, of the outer side surface of the positive pole end of the battery shell.

Preferably, the sleeve is made of a metal material which can attract the first magnetic ring and the second magnetic ring.

Preferably, the opening diameters of the first through hole and the second through hole are 0.45 mm.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. a connecting mechanism which slides relative to the positive terminal is arranged on the outer side of the positive terminal of the lithium ion battery; and the first magnetic ring and the second magnetic ring are respectively arranged on the first plane of the positive end and the second plane of the negative end of the lithium ion battery, so that the serial connection of a plurality of lithium ion batteries can be realized by connecting the manual sliding sleeve with the negative end of the lithium ion battery to be connected without using additional tools, and the convenience and the cost are saved.

2. A second through hole and a first through hole are respectively formed in the outer side surface of the positive electrode end of the battery shell and the outer side surface of the sleeve; meanwhile, the clamping groove used for being connected with the sleeve sliding block is arranged at the positive end, so that when a plurality of lithium ion batteries are connected in series, the first through hole is communicated with the second through hole, and the heat dissipation performance of the lithium ion batteries is improved; when the lithium ion batteries are not connected in series, the sleeve rotates relative to the lithium ion shell to enable the sliding block to be matched with the clamping groove, the first through hole and the second through hole are staggered, the effect of protecting the battery cell is achieved, and the service life of the lithium ion batteries is prolonged.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1;

fig. 3 is a schematic perspective view of the present invention;

fig. 4 is a schematic structural diagram of the lithium ion batteries connected in series according to the present invention;

wherein: the battery comprises a battery shell 1, a battery core 2, a connecting mechanism 3, a first magnetic ring 4, a second magnetic ring 5, a positive terminal 11, a middle part 12, a negative terminal 13, a first plane 14, a second plane 15, a sleeve piece 31, a sliding block 32, a sliding groove 111, a clamping groove 112, a second through hole 113 and a first through hole 311.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 4, a lithium ion battery having a composite structure includes a battery case 1 and a cell 2 of a cylindrical structure; the outer diameters of the positive electrode end 11 and the negative electrode end 13 of the battery shell 1 are the same and are both smaller than the outer diameter of the middle part 12; a first plane 14 is arranged at the joint of the positive end 11 and the middle part 12 of the battery shell 1; a second plane 15 is arranged at the joint of the negative end 11 and the middle part 12 of the battery shell 1; the first plane 14 and the second plane 15 are both provided with a first magnetic ring 4 and a second magnetic ring 5 inside.

The positive end 11 of the battery shell 1 is sleeved with a connecting mechanism 3 which is used for being connected with other lithium ion batteries in series; the connection mechanism 3 is slidably connected along the outer side surface of the positive terminal 11.

Further, the connecting mechanism 3 comprises a sleeve 31 with a circular cylindrical structure, and a sliding block 32 is arranged on the inner side of the lower end of the sleeve 31; a sliding groove 111 is arranged on the outer side surface of the positive end 11 of the battery shell 1 corresponding to the sliding block 32; the slide groove 111 is provided in parallel with the battery case 1.

Further, one end of the sliding groove 111 close to the first plane 14 is provided with a clamping groove 112 communicated with the sliding groove 111; the clamping groove 112 is perpendicular to the sliding groove 111; the sleeve 31 can rotate relative to the battery case 1, so that the slider 32 is engaged with the card slot 112.

Further, the outer side of the sleeve 31 is provided with first through holes 311 distributed in an array; when the slide block 32 is far away from the card slot 112, a second through hole 113 is arranged on the outer side surface of the positive terminal 11 of the battery shell 1 at a position corresponding to the first through hole 311.

In this embodiment: a connecting mechanism which slides relative to the positive terminal is arranged on the outer side of the positive terminal of the lithium ion battery; and the first magnetic ring and the second magnetic ring are respectively arranged on the first plane of the positive end and the second plane of the negative end of the lithium ion battery, so that the serial connection of a plurality of lithium ion batteries can be realized by connecting the manual sliding sleeve with the negative end of the lithium ion battery to be connected without using additional tools, and the convenience and the cost are saved.

While providing a second through hole 113 and a first through hole 311 on the outer side surface of the positive terminal 11 of the battery case 1 and the outer side surface of the sleeve member 32, respectively; meanwhile, the positive end 11 is provided with a clamping groove 112 used for being connected with the sliding block 32, so that when a plurality of lithium ion batteries are connected in series, the first through hole 311 is communicated with the second through hole 113, and the heat dissipation performance of the lithium ion batteries is improved; when the lithium ion batteries are not connected in series, the sleeve 31 rotates relative to the lithium ion housing 1 to enable the sliding block 32 to be matched with the clamping groove 112, and the first through hole 311 and the second through hole 113 are staggered, so that the battery core is protected, and the service life of the lithium ion batteries is prolonged.

Further, the sleeve 31 is made of a metal material which can attract the first magnetic ring 4 and the second magnetic ring 5; when the lithium ion batteries are not connected in series, the sliding block 32 of the connecting mechanism 3 is connected with the clamping groove 112 in a clamping manner, and at the moment, the connecting mechanism 3 and the first magnetic ring 4 are attracted mutually, so that the aim of fixedly connecting the connecting mechanism 3 and the battery shell 1 is fulfilled; when the lithium ion batteries are connected in series, the slide 32 of the connecting mechanism 3 is far away from the clamping groove 112 and is positioned at one end of the slide groove 111 far away from the middle part 12 of the battery shell 1, and at the moment, the sleeve is connected with the second magnetic ring at the negative electrode end 13 of the other lithium ion battery in an attracting way, so that the purpose of stable series connection is achieved.

Further, the opening diameters of the first through hole 311 and the second through hole 113 are 0.45 mm.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the present invention.

Claims

1. A lithium ion battery with a combined structure comprises a battery shell and a battery core which are of cylindrical structures, and is characterized in that the outer diameters of a positive electrode end and a negative electrode end of the battery shell are the same and are both smaller than the outer diameter of the middle part; a first plane is arranged at the joint of the positive electrode end and the middle part of the battery shell; a second plane is arranged at the joint of the negative end and the middle part of the battery shell; a first magnetic ring and a second magnetic ring are arranged in the first plane and the second plane respectively;

2. The lithium ion battery with a combined structure is characterized in that the connecting mechanism comprises a sleeve with a circular cylindrical structure, and a sliding block is arranged on the inner side of the lower end of the sleeve; a sliding groove is formed in the position, corresponding to the sliding block, of the outer side surface of the positive electrode end of the battery shell; the sliding groove is arranged in parallel with the battery shell.

3. The lithium ion battery with the combined structure is characterized in that one end, close to the first plane, of the sliding groove is provided with a clamping groove communicated with the sliding groove; the clamping groove is perpendicular to the sliding groove; the external member can rotate relative to the battery shell, so that the sliding block is clamped and connected with the clamping groove.

4. The lithium ion battery with the combined structure is characterized in that the outer side of the sleeve is provided with first through holes distributed in an array; when the sliding block is far away from the clamping groove, a second through hole is formed in the position, corresponding to the first through hole, of the outer side surface of the positive pole end of the battery shell.

5. The lithium ion battery as claimed in claim 2, wherein the sleeve is made of a metal material that can attract the first magnetic ring and the second magnetic ring.

6. The lithium ion battery of claim 4, wherein the first and second through holes have an opening diameter of 0.45 mm.