CN216563407U

CN216563407U - Lithium battery cell with end part insulation structure

Info

Publication number: CN216563407U
Application number: CN202122955347.XU
Authority: CN
Inventors: 李桂洪; 吴少华
Original assignee: Guangdong Cavtop New Energy Technology Co ltd
Current assignee: Guangdong Cavtop New Energy Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-17
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to the technical field of a lithium battery cell structure, in particular to a lithium battery cell with an end insulation structure, which comprises a protection frame, wherein a lithium battery cell main body is arranged in the middle of the protection frame, fixing holes are formed in the front end surface of the protection frame, which is close to two ends, a wiring end post is arranged at the front end of the lithium battery cell main body, a metal gasket is arranged at the central position of the front end surface of a fixing seat, a connecting block is arranged at the position, corresponding to the wiring end post, on the rear end surface of the fixing seat, a top cover is arranged above the protection frame, and a rubber insulation sleeve is sleeved at the front end of the fixing seat; this lithium battery cell with tip insulation system installs lithium battery cell main part in the middle of the bearer bar, and the top cap is convenient for protect inside with the bearer bar cooperation, and under fastening bolt's cooperation, the fixed mounting of being convenient for, the cooperation of the insulating cover of rubber is convenient for carry out insulation protection to the fixing base, realizes the protection to lithium battery cell main part tip, reduces the influence of electric leakage short circuit.

Description

Lithium battery cell with end part insulation structure

Technical Field

The utility model relates to the technical field of lithium battery cell structures, in particular to a lithium battery cell with an end part insulation structure.

Background

Lithium batteries are batteries using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, and therefore, such batteries are also called lithium metal batteries, and unlike other batteries, lithium batteries have the characteristics of high charge density, long service life, high unit cost, and the like;

general lithium cell electricity core tip when not using, easily with external contact, cause the influence of electric leakage short circuit, can not insulate protection to the tip, when needs use, open the connection of being convenient for and use, when not using, the closed protection prevents the short circuit electric leakage.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a lithium battery cell with an end insulation structure to solve the above problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a lithium battery cell with tip insulation system, includes the bearer bar, be equipped with lithium battery cell main part in the middle of the bearer bar, central department is close to top position and has seted up the draw-in groove on the terminal surface before the bearer bar, be close to both ends department on the terminal surface before the bearer bar and seted up the fixed orifices, threaded groove has all been seted up in the fixed orifices, lithium battery cell main part front end department is equipped with the terminal post, bearer bar front end department still is equipped with the fixing base, terminal surface central point puts and is equipped with metal gasket before the fixing base, the position that corresponds with the terminal post of working a telephone switchboard on the fixing base rear end face is equipped with the connecting block, the position that corresponds with the fixed orifices on the fixing base is equipped with the post of inserting, post central department of inserting has seted up the perforation, all be equipped with fastening bolt in the perforation, the bearer bar top is equipped with the top cap, the fixing base front end still overlaps and is equipped with rubber insulation cover.

Preferably, a mounting groove is formed in the position, corresponding to the fixing seat, on the rear end face of the rubber insulating sleeve, a groove is further formed in the center of the bottom of the mounting groove, and the width of the groove is matched with that of the metal gasket.

Preferably, the wiring terminal post is welded and fixed with the lithium battery cell main body, the width of the lithium battery cell main body is matched with the width of the inner wall of the protection frame, and the width of the wiring terminal post is matched with the width of the clamping groove.

Preferably, a clamping block is arranged at a position, corresponding to the clamping groove, of the lower surface of the top cover, the width of the clamping block is matched with that of the clamping groove, and the top cover is fixedly bonded with the protection frame.

Preferably, the metal gasket is fixedly bonded with the fixing seat, the connecting block is fixedly welded with the metal gasket, the width of the connecting block is matched with the width of the inner wall of the wiring end column, the inserting column is fixedly bonded with the fixing seat, the diameter of the inserting column is matched with the inner diameter of the fixing hole, and the diameter of the fastening bolt is matched with the inner diameter of the threaded groove.

Preferably, the width of mounting groove and the width looks adaptation of fixing base, the width of recess and the width looks adaptation of metal gasket, rubber insulation cover and fixing base are pegged graft the cooperation.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the lithium battery cell main body is arranged in the middle of the protection frame, the top cover is matched with the protection frame, so that the interior of the protection frame is protected conveniently, the fixing seat is stably and quickly assembled with the protection frame under the matching of the insertion block, the fixing frame is convenient to fix and install under the matching of the fastening bolt, the fixing seat is convenient to insulate and protect through the matching of the rubber insulation sleeve, the protection of the end part of the lithium battery cell main body is realized, and the influence of leakage short circuit is reduced.

2. The connecting block is in inserting fit with the wiring end post to realize the use of the end part in electrifying connection, is convenient to be connected with an external element for use under the fit of the metal gasket, and is convenient to combine and fix the top cover and the protective frame under the fit of the clamping block and the clamping groove.

Drawings

Fig. 1 is a schematic structural diagram of a sealed state of an end portion of a lithium battery cell according to the present invention;

FIG. 2 is a schematic structural view of the rubber insulating sheath according to the present invention in an open state;

FIG. 3 is a schematic side view of a rubber insulating boot according to the present invention;

fig. 4 is a schematic view of a combined structure of the protection frame and the main body of the lithium battery cell of the present invention;

FIG. 5 is a schematic view of a fixing base frame according to the present invention;

FIG. 6 is a schematic view of the top frame structure of the present invention;

fig. 7 is a schematic view of the whole part of the cross-section structure of the present invention.

The various reference numbers in the figures mean:

1. a protective frame; 10. a fixing hole; 100. a thread groove; 11. a card slot;

2. a lithium battery cell main body; 20. a terminal post;

3. a top cover; 30. a clamping block;

4. a fixed seat; 40. a metal gasket; 41. connecting blocks; 42. inserting a column; 420. perforating; 43. fastening a bolt;

5. a rubber insulating sleeve; 50. mounting grooves; 51. and (4) a groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1-7, the present embodiment provides a technical solution:

the utility model provides a lithium battery cell with tip insulation system, including bearer bar 1, be equipped with lithium battery cell main part 2 in the middle of the bearer bar 1, central department is close to top position and has seted up draw-in groove 11 on the terminal surface before the bearer bar 1, be close to both ends department on the terminal surface before the bearer bar 1 and seted up fixed orifices 10, thread groove 100 has all been seted up in the fixed orifices 10, 2 front ends departments of lithium battery cell main part are equipped with wiring end post 20, 1 front ends department of bearer bar still is equipped with fixing base 4, 4 front ends central point of fixing base puts and is equipped with metal gasket 40, the position that corresponds with wiring end post 20 on the 4 rear end faces of fixing base is equipped with connecting block 41, the position that corresponds with fixed orifices 10 on the fixing base 4 is equipped with inserted column 42, inserted column 42 central department has seted up perforation 420, all be equipped with fastening bolt 43 in the perforation 420, 1 top of bearer bar is equipped with top cap 3, 4 front ends of fixing base still overlaps and is equipped with rubber insulation cover 5.

In this embodiment, mounting groove 50 has been seted up with the position that fixing base 4 corresponds on the 5 rear end faces of rubber insulation cover, and recess 51 has still been seted up to 50 bottom centers of mounting groove, and recess 51's width and metal gasket 40's width looks adaptations, and mounting groove 50 is pegged graft with fixing base 4 and is cooperated, is convenient for protect fixing base 4, and metal gasket 40 pegs graft at recess 51, and the protection of being convenient for closely laminating is used.

Further, wiring end post 20 and lithium battery electric core main part 2 welded fastening, the width of lithium battery electric core main part 2 and the width looks adaptation of the 1 inner wall of protecting frame, the width of wiring end post 20 and the width looks adaptation of draw-in groove 11, the cooperation of wiring end post 20, the lithium battery electric core main part 2 of being convenient for is connected with metal gasket 40 and is used.

Secondly, the lower surface of the top cover 3 is provided with a fixture block 30 at a position corresponding to the clamping groove 11, the width of the fixture block 30 is matched with the width of the clamping groove 11, the top cover 3 is fixedly bonded with the protection frame 1, and the protection frame 1 is conveniently protected in a sealing manner under the matching of the fixture block 30 and the clamping groove 11.

It should be noted that, the metal gasket 40 is fixedly bonded to the fixing base 4, the connecting block 41 is fixedly welded to the metal gasket 40, the width of the connecting block 41 is adapted to the width of the inner wall of the terminal post 20, the plug-in post 42 is fixedly bonded to the fixing base 4, the diameter of the plug-in post 42 is adapted to the inner diameter of the fixing hole 10, the diameter of the fastening bolt 43 is adapted to the inner diameter of the threaded groove 100, the connecting block 41 is matched with the metal gasket 40, so as to be conveniently matched with the terminal post 20 in a plug-in manner, the plug-in post 42 is matched with the fixing hole 10, so as to facilitate the fixing of the fixing base 4 to the protection frame 1, the diameter of the fastening bolt 43 is adapted to the diameter of the through hole 420, and the fastening bolt 43 passes through the through hole 420 and is in threaded connection with the threaded groove 100, thereby facilitating the fixing of the fixing base 4 to the protection frame 1.

It is worth supplementing that, the width of mounting groove 50 and the width looks adaptation of fixing base 4, the width of recess 51 and the width looks adaptation of metal gasket 40, rubber insulation cover 5 and the cooperation of pegging graft of fixing base 4, mounting groove 50 and the closely laminating of fixing base 4, closely laminate at metal gasket 40 and recess 51, help rubber insulation cover 5 to carry out the insulation protection to fixing base 4 tip.

The lithium battery cell with tip insulation system of this embodiment is when using, the user is manual with lithium battery cell main part 2 and the cooperation of pegging graft of bearer bar 1, wiring end post 20 and draw-in groove 11 cooperation of pegging graft, top cap 3 is under the cooperation of fixture block 30, be convenient for closely laminate with bearer bar 1, peg graft cooperation with fixed orifices 10 with post 42 on the fixing base 4, then manual pass fastening bolt 43 and perforate 420, and with 100 fixed connection of thread groove, when need not using, rubber insulation cover 5 and fixing base 4 cooperation of pegging graft, insulate protection to metal gasket 40 tip, when needing to use, rubber insulation cover 5 is taken off manually, be convenient for metal gasket 40 on the fixing base 4 and external component laminating contact, carry out the power supply use that corresponds.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a lithium battery electricity core with tip insulation system, includes protecting frame (1), its characterized in that: the lithium battery cell protection structure is characterized in that a lithium battery cell main body (2) is arranged in the middle of the protection frame (1), a clamping groove (11) is formed in the position, close to the top, of the center of the front end face of the protection frame (1), fixing holes (10) are formed in the positions, close to the two ends, of the front end face of the protection frame (1), thread grooves (100) are formed in the fixing holes (10), a wiring end column (20) is arranged at the front end of the lithium battery cell main body (2), a fixing seat (4) is further arranged at the front end of the protection frame (1), a metal gasket (40) is arranged at the center of the front end face of the fixing seat (4), a connecting block (41) is arranged at the position, corresponding to the wiring end column (20), on the rear end face of the fixing seat (4), an inserting column (42) is arranged at the position, corresponding to the fixing hole (10), a through hole (420) is formed in the center of the inserting column (42), and fastening bolts (43) are arranged in the through holes (420), a top cover (3) is arranged above the protection frame (1), and a rubber insulating sleeve (5) is further sleeved at the front end of the fixing seat (4).

2. The lithium battery cell with an end insulation structure of claim 1, wherein: mounting groove (50) have been seted up with the position that fixing base (4) correspond on the rubber insulation cover (5) rear end face, recess (51) have still been seted up to mounting groove (50) bottom center department, the width of recess (51) and the width looks adaptation of metal gasket (40).

3. The lithium battery cell with an end insulation structure of claim 1, wherein: the terminal post of working a telephone switchboard (20) and lithium battery electric core main part (2) welded fastening, the width of lithium battery electric core main part (2) and the width looks adaptation of protective frame (1) inner wall, the width of terminal post of working a telephone switchboard (20) and the width looks adaptation of draw-in groove (11).

4. The lithium battery cell with an end insulation structure of claim 1, wherein: the lower surface of the top cover (3) is provided with a clamping block (30) at a position corresponding to the clamping groove (11), the width of the clamping block (30) is matched with that of the clamping groove (11), and the top cover (3) is fixedly bonded with the protection frame (1).

5. The lithium battery cell with an end insulation structure of claim 1, wherein: metal gasket (40) and fixing base (4) bonding fixation, connecting block (41) and metal gasket (40) welded fastening, the width of connecting block (41) and the width looks adaptation of wiring end post (20) inner wall, it is fixed with fixing base (4) bonding to insert post (42), the diameter of inserting post (42) and the internal diameter looks adaptation of fixed orifices (10), the diameter of fastening bolt (43) and the internal diameter looks adaptation of thread groove (100).

6. The lithium battery cell with an end insulation structure of claim 2, wherein: the width of mounting groove (50) and the width looks adaptation of fixing base (4), the width looks adaptation of the width of recess (51) and metal gasket (40), rubber insulation cover (5) and fixing base (4) are pegged graft the cooperation.