CN210866293U

CN210866293U - High-sealing lithium battery with double-layer protection structure

Info

Publication number: CN210866293U
Application number: CN201921966441.1U
Authority: CN
Inventors: 唐春燕
Original assignee: Wuhan Antaineng Technology Co ltd
Current assignee: Wuhan Antaineng Technology Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-06-26
Anticipated expiration: 2029-11-14

Abstract

The utility model belongs to the technical field of lithium batteries, in particular to a high-tightness lithium battery with a double-layer protection structure, aiming at the problem of poor tightness of the prior battery, the utility model provides a proposal which comprises a shell, a plurality of electric cores are arranged in the shell, a sealing cover is sleeved at the top of the shell, a sealing ring is fixedly arranged at the top of the shell, the top of the sealing ring is contacted with the inner wall at the top of the sealing cover, fixed seats are fixedly arranged at both sides of the shell, rotating holes are respectively arranged on the two fixed seats, rotating rods are respectively and rotatably arranged in the two rotating holes, external threads are respectively arranged at the outer sides of the two rotating rods, two thread grooves are arranged at the bottom of the sealing cover, and the two rotating rods are respectively in threaded connection with the two thread grooves through the two external threads, the utility model is, simple structure and convenient use.

Description

High-sealing lithium battery with double-layer protection structure

Technical Field

The utility model relates to a lithium cell technical field especially relates to a double-deck protective structure's high leakproofness lithium cell.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, the lithium metal battery is firstly proposed and researched by Gilbert N.Lewis in 1912, and the lithium battery is proposed and researched in the 20 th century 70 s by M.S. Whittingham.

The existing battery has poor sealing performance, so a high-sealing lithium battery with a double-layer protection structure is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that battery leakproofness is not good, and the high leakproofness lithium cell of a double-deck protective structure who proposes.

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

the utility model provides a double-deck protective structure's high leakproofness lithium cell, includes the shell, be equipped with a plurality of electric cores in the shell, the top cover of shell is equipped with sealed lid, the top fixed mounting of shell has the sealing washer, and the top of sealing washer contacts with the top inner wall of sealed lid, the equal fixed mounting in both sides of shell has the fixing base, has all seted up the rotation hole on two fixing bases, all rotates in two rotation holes and installs the dwang, and the external screw thread has all been seted up in the outside of two dwangs, and two thread grooves have been seted up to the bottom of sealed lid, and two dwangs pass through two external.

Preferably, the outer sides of the two rotating rods are all fixedly sleeved with annular plates, the bottom of the two annular plates is provided with limiting grooves, the shell is provided with a cross hole, the cross hole is internally provided with a transverse plate in a sliding manner, the top of the transverse plate is fixedly provided with two clamping rods, the top ends of the two clamping rods are clamped with the two limiting grooves respectively, the bottom of the transverse plate is fixedly provided with one ends of a plurality of springs, and the other ends of the plurality of springs are fixedly connected with the inner wall of the bottom of the cross hole.

Preferably, the bottom inner wall and the equal fixed mounting of lateral wall of shell have the rubber pad, and the rubber pad contacts with electric core, is equipped with the picture peg in the shell, and one side fixed mounting of picture peg has the one end of rubber extrusion pad, and the other end of rubber extrusion pad contacts with the electric core that corresponds.

Preferably, the top end of the sealing cover is fixedly provided with a plurality of binding posts, and the binding posts are electrically connected with the corresponding battery cells.

Preferably, the annular grooves are formed in the side walls of the two rotating holes, the outer sides of the two annular plates are respectively in sliding connection with the side walls of the two annular grooves, the connecting holes are formed in the bottoms of the two fixing seats, the two connecting holes are respectively communicated with the two annular grooves, and the outer sides of the two clamping rods are respectively in sliding connection with the side walls of the two connecting holes.

Compared with the prior art, the utility model has the advantages of:

(1) when the sealing cover is used, the sealing cover is sleeved on the shell, the two rotating rods are inserted into the two thread grooves, the sealing cover is pressed downwards, the two rotating rods drive the two annular plates to rotate, the sealing cover is continuously pressed downwards, the inner wall of the sealing cover is in close contact with the top of the sealing ring, when the sealing cover cannot be pressed downwards normally, the sealing cover and the sealing ring achieve the best sealing effect, the two clamping rods are just aligned with the two limiting grooves, the spring is released from a contraction state, the transverse plate drives the two clamping rods to move upwards, the two clamping rods are clamped into the two limiting grooves, the two annular plates are fixed, the two rotating rods cannot rotate, and the sealing cover is further fixed;

(2) the utility model discloses be convenient for fix sealed lid, have higher leakproofness, simple structure, convenient to use through the cooperation of sealed lid with the sealing washer.

Drawings

Fig. 1 is a schematic structural diagram of a high-sealing lithium battery with a double-layer protection structure according to the present invention;

fig. 2 is a schematic structural diagram of a portion a of a high-sealing lithium battery with a double-layer protection structure according to the present invention;

fig. 3 is the utility model provides a three-dimensional structure schematic diagram that shell and sealing washer of double-deck protective structure's high leakproofness lithium cell are connected.

In the figure: the device comprises a shell 1, a rubber pad 2, an electric core 3, a sealing cover 4, a plugboard 5, a rubber extrusion pad 6, a sealing ring 7, a fixing seat 8, a rotating rod 9, a thread groove 10, an annular plate 11, a limiting groove 12, a transverse hole 13, a transverse plate 14 and a clamping rod 15.

Detailed Description

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

Example one

Referring to fig. 1-3, a high-sealing lithium battery with a double-layer protection structure comprises a housing 1, a plurality of battery cells 3 are arranged in the housing 1, a sealing cover 4 is sleeved on the top of the housing 1, a sealing ring 7 is fixedly arranged on the top of the housing 1, the top of the sealing ring 7 is contacted with the inner wall of the top of the sealing cover 4, fixing seats 8 are fixedly arranged on both sides of the housing 1, rotating holes are respectively arranged on the two fixing seats 8, rotating rods 9 are rotatably arranged in the two rotating holes, external threads are respectively arranged on the outer sides of the two rotating rods 9, two thread grooves 10 are arranged on the bottom of the sealing cover 4, the two rotating rods 9 are respectively in threaded connection with the two thread grooves 10 through the two external threads, when the rotating rods 9 are inserted into the thread grooves 10, the rotating rods 9 can drive an annular plate 11 to, the sealing cover 4 cannot move, and the sealing cover 4 is fixed.

In this embodiment, the equal fixed cover in outside of two dwang 9 is equipped with annular plate 11, restriction groove 12 has all been seted up to the bottom of two annular plates 11, cross bore 13 has been seted up on shell 1, slidable mounting has diaphragm 14 in the cross bore 13, the top fixed mounting of diaphragm 14 has two kellies 15, the top of two kellies 15 clamps with two restriction groove 12 respectively mutually, the bottom fixed mounting of diaphragm 14 has the one end of a plurality of springs, the other end of a plurality of springs all with the bottom inner wall fixed connection of cross bore 13, carry out spacingly and reset to diaphragm 14 through a plurality of springs.

In this embodiment, the bottom inner wall of shell 1 and the equal fixed mounting of lateral wall have rubber pad 2, and rubber pad 2 contacts with electric core 3, is equipped with picture peg 5 in the shell 1, and one side fixed mounting of picture peg 5 has the one end of rubber extrusion pad 6, and the other end of rubber extrusion pad 6 contacts with electric core 3 that corresponds, and rubber pad 2's setting can play absorbing effect to electric core 3.

In this embodiment, the top end of the sealing cover 4 is fixedly provided with a plurality of terminals, the terminals are electrically connected with the corresponding battery cells 3, and the terminals are used for connecting external wires.

In this embodiment, the annular grooves have been all seted up to the lateral wall in two rotation holes, the outside of two annular slabs 11 respectively with the lateral wall sliding connection of two annular grooves, the connecting hole has all been seted up to the bottom of two fixing bases 8, two connecting holes are linked together with two annular grooves respectively, the outside of two kellies 15 respectively with the lateral wall sliding connection of two connecting holes, the setting of annular groove makes the stable rotation of annular slab 11.

Example two

Referring to fig. 1-3, a high-sealing lithium battery with a double-layer protection structure comprises a shell 1, a plurality of battery cells 3 are arranged in the shell 1, a sealing cover 4 is sleeved on the top of the shell 1, a sealing ring 7 is fixedly arranged on the top of the shell 1 through a bolt, the top of the sealing ring 7 is contacted with the inner wall of the top of the sealing cover 4, fixing seats 8 are fixedly arranged on both sides of the shell 1 through bolts, rotating holes are respectively arranged on the two fixing seats 8, rotating rods 9 are respectively rotatably arranged in the two rotating holes, external threads are respectively arranged on the outer sides of the two rotating rods 9, two thread grooves 10 are arranged on the bottom of the sealing cover 4, the two rotating rods 9 are respectively in threaded connection with the two thread grooves 10 through the two external threads, when the rotating rods 9 are inserted into the thread grooves 10, the rotating rods 9 can drive an annular plate, the sealing cover 4 cannot move, and the sealing cover 4 is fixed.

In this embodiment, the equal fixed cover in outside of two dwang 9 is equipped with annular plate 11, restriction groove 12 has all been seted up to the bottom of two annular plates 11, cross bore 13 has been seted up on shell 1, slidable mounting has diaphragm 14 in the cross bore 13, there are two kellies 15 at the top of diaphragm 14 through bolt fixed mounting, the top of two kellies 15 clamps with two restriction groove 12 respectively mutually, there is the one end of a plurality of springs in the bottom of diaphragm 14 through bolt fixed mounting, the other end of a plurality of springs all with the bottom inner wall fixed connection of cross bore 13, carry on spacingly and reset to diaphragm 14 through a plurality of springs.

In this embodiment, the bottom inner wall of shell 1 and the lateral wall all have rubber pad 2 through bolt fixed mounting, and rubber pad 2 contacts with electric core 3, is equipped with picture peg 5 in the shell 1, and bolt fixed mounting has the one end of rubber extrusion pad 6 one side of picture peg 5, and the other end of rubber extrusion pad 6 contacts with electric core 3 that corresponds, and rubber pad 2's setting can play absorbing effect to electric core 3.

In this embodiment, the top end of the sealing cover 4 is fixedly provided with a plurality of binding posts through bolts, the binding posts are electrically connected with the corresponding battery cells 3, and the binding posts are used for connecting external wires.

In the embodiment, when in use, a plurality of battery cores 3 are placed in a shell 1, then an inserting plate 5 is inserted into the shell 1, the plurality of battery cores 3 are extruded through a rubber extrusion pad 6 on one side of the inserting plate 5, so that the plurality of battery cores 3 are more stable and do not shake, then a sealing cover 4 is sleeved on the shell 1, two rotating rods 9 are inserted into two thread grooves 10, and the sealing cover 4 is pressed downwards, because the rotating rods 9 are in threaded connection with the thread grooves 10, the sealing cover 4 moves downwards to enable the rotating rods 9 to rotate, the two rotating rods 9 drive two annular plates 11 to rotate, the sealing cover 4 is continuously pressed downwards to enable the inner wall of the sealing cover 4 to be in close contact with the top of a sealing ring 7, when the sealing cover 4 is not pressed downwards in a normal direction, the sealing cover 4 and the sealing ring 7 achieve the best sealing effect, two clamping rods 15 are just aligned with two limiting grooves 12, and the, thereby making diaphragm 14 drive two kellies 15 and upwards moving, making two kellies 15 block dress to two restriction slots 12 in, fixing two annular plates 11, making two dwang 9 unable rotations, and then fixing sealed lid 4.

The above descriptions are only preferred embodiments 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 scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. The utility model provides a double-deck protective structure's high leakproofness lithium cell, includes the shell, its characterized in that, be equipped with a plurality of electric cores in the shell, the top cover of shell is equipped with sealed lid, the top fixed mounting of shell has the sealing washer, and the top of sealing washer contacts with the top inner wall of sealed lid, the equal fixed mounting in both sides of shell has the fixing base, has all seted up on two fixing bases and has rotated the hole, and two rotate downthehole all to rotate and install the dwang, and the external screw thread has all been seted up in the outside of two dwangs, and two thread grooves have been seted up to the bottom of sealed lid, and two.

2. The lithium battery of claim 1, wherein the two rotation rods are fixed with an annular plate at the outer side, the two annular plates are provided with a limiting groove at the bottom, the housing is provided with a transverse hole, a transverse plate is slidably mounted in the transverse hole, two clamping rods are fixedly mounted at the top of the transverse plate, the top ends of the two clamping rods are respectively clamped with the two limiting grooves, one end of the plurality of springs is fixedly mounted at the bottom of the transverse plate, and the other ends of the plurality of springs are fixedly connected with the inner wall of the bottom of the transverse hole.

3. The lithium battery with high sealing performance and double-layer protection structure as claimed in claim 1, wherein the inner wall of the bottom of the shell and the side wall are both fixedly provided with rubber pads, the rubber pads are in contact with the battery cells, the plug board is arranged in the shell, one end of the rubber extrusion pad is fixedly arranged on one side of the plug board, and the other end of the rubber extrusion pad is in contact with the corresponding battery cells.

4. The lithium battery with high sealing performance and a double-layer protection structure as claimed in claim 1, wherein a plurality of terminals are fixedly mounted at the top end of the sealing cover, and the terminals are electrically connected with the corresponding battery cells.

5. The lithium battery with high sealing performance and double-layer protection structure as claimed in claim 1, wherein the two rotation holes are provided with annular grooves on the side walls, the outer sides of the two annular plates are slidably connected with the side walls of the two annular grooves, the bottom of the two fixing bases are provided with connecting holes, the two connecting holes are respectively communicated with the two annular grooves, and the outer sides of the two clamping rods are slidably connected with the side walls of the two connecting holes.