CN212033164U

CN212033164U - Prevent lithium cell of leakage

Info

Publication number: CN212033164U
Application number: CN202020734756.XU
Authority: CN
Inventors: 刘南; 倪献聪
Original assignee: Shenzhen Jinbaidi New Energy Co ltd
Current assignee: Shenzhen Jinbaidi New Energy Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-11-27
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a lithium cell of leak protection liquid, including lithium battery shell, last basic shell, lower basic shell, lithium battery inner shell, closing cap and chock both sides are all pegged graft and are had the plate electrode, the plate electrode lower extreme extends to inside the lithium battery inner shell, the plate electrode upper end extends to lithium battery shell upper end, it has annular sealing ring to peg graft the closing cap lower extreme, the sealing ring lower extreme is pegged graft and is had lithium battery inner shell upper end, all be equipped with the slot that the cooperation sealing ring used on closing cap and the lithium battery inner shell, the louvre on the evenly distributed about being equipped with on the outer wall of basic shell both sides down, upward be equipped with evenly distributed's slant board about going up on basic shell and the lower basic shell. Compared with the prior art, the utility model the advantage lie in: the sealing performance is good, the heat dissipation is good, and water is not easy to enter.

Description

Prevent lithium cell of leakage

Technical Field

The utility model relates to a lithium cell technical field specifically indicates a lithium cell of prevention of liquid leakage.

Background

Lithium batteries are relatively high in energy. The lead-acid battery has high storage energy density which is about 6-7 times that of the lead-acid battery, long service life which can reach more than 6 years, low self-discharge rate, light overall weight and convenient use. The lithium cell that can have now is when rainy day is used, and the easy water intake leads to the lithium cell short circuit to damage, phenomenons such as weeping, and some lithium cells are good for holistic leakproofness, and outer protective housing adopts the omniseal, leads to the thermal diffusivity poor, influences the life of lithium cell.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above-mentioned defect, provide a leakproofness good, the better and difficult lithium cell of the leak protection liquid of intaking of heat dissipation.

In order to solve the technical problem, the utility model provides a technical scheme does: a liquid leakage prevention lithium battery comprises a lithium battery shell, wherein the lithium battery shell comprises an upper base shell and a lower base shell which are arranged from top to bottom in sequence, an inner lithium battery shell with an upward opening is arranged in the outer lithium battery shell, a sealing cover is arranged at the upper end of the inner lithium battery shell, the lower end of the sealing cover is provided with a plug block which is matched with an opening of an inner shell of the lithium battery, electrode plates are inserted into the two sides of the sealing cover and the plug block, the lower end of the electrode plate extends to the inner part of the lithium battery inner shell, the upper end of the electrode plate extends to the upper end of the lithium battery outer shell, the lower end of the sealing cover is inserted with an annular sealing ring, the lower end of the sealing ring is inserted with the upper end of the lithium battery inner shell, the sealing cover and the lithium battery inner shell are respectively provided with a slot matched with the sealing ring for use, the outer walls of the two sides of the lower base shell are provided with heat dissipation holes which are uniformly distributed from top to bottom, and the outer walls of the two sides of the upper base shell and the lower base shell are provided with inclined plates which are uniformly distributed from top to bottom.

Compared with the prior art, the utility model the advantage lie in: compared with the prior art, the utility model discloses rely on the sealing ring and the two-layer casing that sets up to realize high leakproofness, be equipped with the closing plate simultaneously and carry out secondary seal with supplementary sealing ring, effectively avoid the battery weeping, it has the louvre to strengthen radiating ability to open simultaneously on the shell, sets up decurrent slant board in the shell outside and can guide rivers case both sides to fall down, avoids the rainwater to enter into inside the battery, even get into inside the battery, the utility model discloses a with the unsettled setting of lithium cell inner shell only through the diaphragm connection, let the inside a small amount of water of entering store up inside the shell, can not disturb the lithium cell work in the lithium cell inner shell.

As an improvement, connecting columns are arranged on two sides of the upper end of the lower base shell, column grooves matched with the connecting columns are formed in two sides of the lower end of the upper base shell, and the connecting columns and the column grooves are fixedly connected through fixing bolts arranged between the upper base shell and the lower base shell. The spliced pole can be pegged graft and carry out fixed connection in the post inslot with last base shell and lower base shell, and fixing bolt can further increase the firm nature of connecting, lets go up the difficult separation of base shell and lower base shell.

As an improvement, the lower single sides of the inner shell of the lithium battery are both provided with transverse plates which are uniformly distributed from top to bottom, and the other ends of the transverse plates are fixedly connected with the inner wall of the lower base shell. The diaphragm is used for connecting the lithium battery inner shell and the lower base shell, and the lithium battery inner shell is prevented from falling downwards due to the suspended state.

As an improvement, an auxiliary sealing ring is sleeved at the joint of the sealing cover and the lithium battery inner shell. The auxiliary sealing ring is used as a safety measure, and the auxiliary sealing ring plays a sealing role once the sealing ring is prevented from leaking and failing.

As an improvement, the electrode plate is positioned between the upper base shell and the sealing cover and is sleeved on a leakage-proof plate of the electrode plate, an annular extension plate is sleeved on a part of the electrode plate positioned between the upper base shell and the sealing cover, and an extension groove matched with the extension plate for use is arranged in the leakage-proof plate. The leakage-proof plate can avoid leakage of a battery solution to the top, but because the leakage-proof plate is connected with the electrode plate in a sleeved mode, certain leakage can be prevented through the extension plate, and the extension groove is matched with the extension plate in use.

Drawings

Fig. 1 is a schematic structural diagram of a liquid leakage preventing lithium battery of the present invention.

As shown in the figure: 1. lithium battery shell, 2, lower basal shell, 3, upper basal shell, 4, lithium battery inner shell, 5, closing cap, 6, chock, 7, electrode plate, 8, sealing ring, 9, slot, 10, auxiliary seal ring, 11, leakage-proof plate, 12, extension groove, 13, extension plate, 14, diaphragm, 15, louvre, 16, slant plate, 17, spliced pole, 18, post groove, 19, fixing bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to fig. 1, a liquid leakage preventing lithium battery comprises a lithium battery outer shell 1, wherein the lithium battery outer shell 1 comprises an upper base shell 3 and a lower base shell 2 which are sequentially arranged from top to bottom, a lithium battery inner shell 4 with an upward opening is arranged in the lithium battery outer shell 1, a sealing cover 5 is arranged at the upper end of the lithium battery inner shell 4, a plug 6 matched with the opening of the lithium battery inner shell 4 is arranged at the lower end of the sealing cover 5, electrode plates 7 are respectively inserted into two sides of the sealing cover 5 and the plug 6, the lower end of the electrode plate 7 extends into the lithium battery inner shell 4, the upper end of the electrode plate 7 extends to the upper end of the lithium battery outer shell 1, an annular sealing ring 8 is inserted into the lower end of the sealing cover 5, the upper end of the lithium battery inner shell 4 is inserted into the sealing cover 5, slots 9 matched with the sealing ring 8 are respectively arranged on the sealing cover 5 and the lithium, and the outer walls of the two sides of the upper base shell 3 and the lower base shell 2 are provided with inclined plates 16 which are uniformly distributed up and down.

The upper end of the lower base shell 2 is provided with connecting columns 17 on two sides, the lower end of the upper base shell 3 is provided with column grooves 18 matched with the connecting columns 17 on two sides, and the connecting columns 17 and the column grooves 18 are fixedly connected between the upper base shell 3 and the lower base shell 2 through fixing bolts 19.

The lower single both sides of lithium battery inner shell 4 all are equipped with diaphragm 14 from top to bottom evenly distributed, the diaphragm 14 other end is with 2 inner walls fixed connection of base shell down.

And an auxiliary sealing ring 10 is sleeved at the joint of the sealing cover 5 and the lithium battery inner shell 4.

The electrode plate 7 is sleeved on the anti-leakage plate 11 of the electrode plate 7 at a position between the upper base shell 3 and the sealing cover 5, the annular extension plate 13 is sleeved on a part of the electrode plate 7 between the upper base shell 3 and the sealing cover 5, and the extension groove 12 matched with the extension plate 13 for use is arranged in the anti-leakage plate 11.

In the concrete implementation of the utility model, the basic principle of the utility model is that the plug 6 arranged at the lower end of the sealing cover 5 is connected with the inner shell 4 of the lithium battery, the lithium battery is extruded and sealed by the volume of the plug 6, the inner shell 4 of the lithium battery is filled with the battery solution, the battery is prevented from easily leaking from the gap at the joint of the sealing cover 5 and the inner shell 4 of the lithium battery by the sealing ring 8, the auxiliary sealing ring 10 is sleeved outside as a safety measure and is used as a replacement option of the sealing ring 8, once the sealing ring 8 fails, the auxiliary sealing ring 10 plays a role of sealing and leakage prevention, if the battery solution leaks by the gap between the electrode plate 7 and the sealing cover 5 as well as the upper base shell 3, the battery solution is separated by the leakage prevention plate 11, the transverse extension plate 13 is arranged at the same time, the heat dissipation holes can also effectively separate the further leakage of the battery solution, by, can strengthen certain heat-sinking capability, when using in the rainy day, decurrent slant board 16 also can pull the direction that principle lithium cell body was flowed down with the rainwater lamp, avoids the rainwater to get into the inside damage that causes of lithium cell.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a lithium cell of leak protection liquid, includes lithium cell casing (1), lithium cell casing (1) includes from the top down last basic shell (3) and lower basic shell (2) that are equipped with in proper order, its characterized in that: the lithium battery comprises a lithium battery shell (1), wherein a lithium battery inner shell (4) with an upward opening is arranged in the lithium battery shell (1), a sealing cover (5) is arranged at the upper end of the lithium battery inner shell (4), a plug block (6) matched with the lithium battery inner shell (4) for use in opening is arranged at the lower end of the sealing cover (5), electrode plates (7) are respectively inserted into two sides of the sealing cover (5) and the plug block (6), the lower end of each electrode plate (7) extends into the lithium battery inner shell (4), the upper end of each electrode plate (7) extends to the upper end of the lithium battery shell (1), an annular sealing ring (8) is inserted into the lower end of the sealing cover (5), the lower end of each sealing ring (8) is inserted into the upper end of the lithium battery inner shell (4), slots (9) matched with the sealing rings (8) for use are respectively arranged on the sealing cover (5, the outer walls of the two sides of the upper base shell (3) and the lower base shell (2) are provided with inclined plates (16) which are uniformly distributed up and down.

2. A liquid leakage proof lithium battery as claimed in claim 1, wherein: lower base shell (2) upper end both sides are equipped with spliced pole (17), it is some column groove (18) to go up base shell (3) lower extreme both sides and be equipped with cooperation spliced pole (17), go up between base shell (3) and lower base shell (2) through being equipped with fixing bolt (19) with spliced pole (17) and column groove (18) fixed connection.

3. A liquid leakage proof lithium battery as claimed in claim 1, wherein: the lithium battery inner shell (4) is single both sides down all are equipped with from top to bottom evenly distributed's diaphragm (14), diaphragm (14) other end and base shell (2) inner wall fixed connection down.

4. A liquid leakage proof lithium battery as claimed in claim 1, wherein: and an auxiliary sealing ring (10) is sleeved at the joint of the sealing cover (5) and the lithium battery inner shell (4).

5. A liquid leakage proof lithium battery as claimed in claim 1, wherein: the electrode plate (7) is positioned between the upper base shell (3) and the sealing cover (5) and is sleeved on a leakage-proof plate (11) of the electrode plate (7), the part of the electrode plate (7) positioned between the upper base shell (3) and the sealing cover (5) is sleeved with an annular extension plate (13), and an extension groove (12) matched with the extension plate (13) for use is arranged inside the leakage-proof plate (11).