CN210866260U

CN210866260U - Anti-rotation pole sealing device of lithium ion storage battery

Info

Publication number: CN210866260U
Application number: CN201921288263.1U
Authority: CN
Inventors: 成晓燕
Original assignee: Guizhou Mairui New Energy Technology Co ltd
Current assignee: Guizhou Mairui New Energy Technology Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-06-26
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a lithium ion battery prevent rotating utmost point post sealing device, including end cover plate, utmost point post main part, I shape utmost point post cover, second screw hole and stop screw, the centre of end cover plate is pegged graft there is utmost point post main part, installs first ceramic packing ring in the utmost point post main part, and the tetrafluoro sealing washer is installed to the top of first ceramic packing ring, and the tetrafluoro sealing washer cup joints in utmost point post main part, installs I shape utmost point post cover between tetrafluoro sealing washer and the end cover plate, and the I shape utmost point post cover top is close to one side joint of utmost point post main part and is gone up at the tetrafluoro sealing washer; and a second ceramic gasket is arranged above the tetrafluoro sealing ring, and a limit screw is arranged on the first threaded hole and the second threaded hole. The utility model discloses a set up first screw hole on second ceramic washer, set up the second screw hole on the end cover board to install stop screw between first screw hole and second screw hole, stop screw plays limiting displacement, can prevent that utmost point post sealing member from taking place to rotate.

Description

Anti-rotation pole sealing device of lithium ion storage battery

Technical Field

The utility model relates to a lithium ion battery utmost point post seals the field, specifically is a lithium ion battery prevents rotating utmost point post sealing device.

Background

The lithium ion storage battery consists of an anode, a cathode, a diaphragm and electrolyte, wherein the anode and the cathode are soaked in the electrolyte, lithium ions move between the anode and the cathode by taking the electrolyte as a medium, the charge and discharge of the battery are realized, the lithium ion battery has high energy density and small self-discharge, can work within the temperature range of-20 ℃ to 60 ℃, has excellent cycle performance, can be charged and discharged quickly, has charging efficiency of up to 100 percent, has high output power and long service life, does not contain toxic and harmful substances, and is called as a green battery. The lithium ion battery has high requirements on the sealing performance of the pole, and if the sealing performance of the lithium ion battery is not good, the leakage phenomenon easily occurs, so that the service life of the lithium ion battery is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium ion battery prevent rotating utmost point post sealing device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an anti-rotation pole sealing device of a lithium ion storage battery comprises an end cover plate, a pole main body, an I-shaped pole sleeve, a second threaded hole and a limiting screw, wherein the pole main body is inserted in the middle of the end cover plate, a first ceramic gasket is mounted on the pole main body, the first ceramic gasket is positioned below the end cover plate, a tetrafluoro sealing ring is mounted above the first ceramic gasket, the tetrafluoro sealing ring is sleeved on the pole main body, the I-shaped pole sleeve is mounted between the tetrafluoro sealing ring and the end cover plate, one side, far away from the pole main body, above the I-shaped pole sleeve is attached to the upper side of the end cover plate, and one side, close to the pole main body, above the I-shaped pole sleeve is connected to the tetrafluoro; a second ceramic gasket is installed above the tetrafluoro sealing ring, first threaded holes are formed in the edges of the periphery of the second ceramic gasket, four second threaded holes are evenly distributed in the end cover plate and located right below the first threaded holes, and limiting screws are installed in the first threaded holes and the second threaded holes.

As a further aspect of the present invention: the I-shaped pole column sleeve is formed by integrally casting stainless steel, and the lower part of the I-shaped pole column sleeve is arranged between the end cover plate and the first ceramic washer.

As a further aspect of the present invention: and a butterfly washer is arranged above the second ceramic washer, and a fastening nut is arranged above the butterfly washer.

As a further aspect of the present invention: the upper and lower both sides of tetrafluoro sealing washer all are provided with a plurality of sawtooth lugs, and one side equipartition that first ceramic packing ring and tetrafluoro sealing washer contacted is provided with a plurality of first sawtooth recesses, and one side equipartition that second ceramic packing ring and tetrafluoro sealing washer contacted is provided with a plurality of second sawtooth recesses.

As a further aspect of the present invention: the first sawtooth groove and the second sawtooth groove are meshed and connected with the sawtooth bump.

Compared with the prior art, the utility model has the advantages that the first threaded hole is arranged on the second ceramic washer, the second threaded hole is arranged on the end cover plate, the limiting screw rod is arranged between the first threaded hole and the second threaded hole, and the limiting screw rod plays a limiting role and can prevent the pole sealing element from rotating; the end cover plate and the tetrafluoro sealing ring can be connected more stably and tightly through the arranged I-shaped pole column sleeve; through the cooperation that sets up sawtooth lug and first sawtooth recess, second sawtooth recess and use, can make utmost point post seal effect better.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of an anti-rotation terminal sealing device of a lithium ion battery.

Fig. 2 is a schematic top view of a first embodiment of an anti-rotation post sealing device of a lithium ion battery.

Fig. 3 is a schematic structural view of a second embodiment of an anti-rotation terminal sealing device of a lithium ion battery.

In the figure: 1. an end cover plate; 2. a pole body; 3. a first ceramic gasket; 4. a tetrafluoro seal ring; 5. an I-shaped pole column sleeve; 6. a second ceramic gasket; 7. a butterfly washer; 8. fastening a nut; 9. a second threaded hole; 10. a first threaded hole; 11. a limit screw; 12. a first sawtooth groove; 13. a second saw-tooth groove; 14. and a saw tooth bump.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example one

Referring to fig. 1-2, an anti-rotation pole sealing device for a lithium ion battery includes an end cover plate 1, a pole body 2, an i-shaped pole sleeve 5, a second threaded hole 9, and a limit screw 11; the middle of the end cover plate 1 is inserted with an electrode post main body 2, a first ceramic gasket 3 is arranged on the electrode post main body 2, the first ceramic gasket 3 is positioned below the end cover plate 1, a tetrafluoro sealing ring 4 is arranged above the first ceramic gasket 3, the tetrafluoro sealing ring 4 is sleeved on the electrode post main body 2, an I-shaped electrode post sleeve 5 is arranged between the tetrafluoro sealing ring 4 and the end cover plate 1, the I-shaped electrode post sleeve 5 is formed by integrally casting stainless steel, the lower part of the I-shaped electrode post sleeve 5 is arranged between the end cover plate 1 and the first ceramic gasket 3, one side of the upper part of the I-shaped electrode post sleeve 5, which is far away from the electrode post main body 2, is attached above the end cover plate 1, one side of the upper part of the I-shaped electrode post sleeve 5, which is close to the, the connection between the end cover plate 1 and the tetrafluoro sealing ring 4 is more stable and tight by arranging the I-shaped pole column sleeve 5.

Second ceramic packing ring 6 is installed to tetrafluoro sealing washer 4's top, second ceramic packing ring 6's all edges are provided with first screw hole 10, the equipartition is provided with four second screw holes 9 on the end cover plate 1, second screw hole 9 is located first screw hole 10 under, install stop screw 11 on first screw hole 10 and the second screw hole 9, play limiting displacement through setting up stop screw 11, can prevent that utmost point post sealing member from taking place to rotate, butterfly type packing ring 7 is installed to second ceramic packing ring 6's top, fastening nut 8 is installed to butterfly type packing ring 7's top.

The utility model discloses a theory of operation is: the fastening nut 8 is screwed to move downwards, the fastening nut 8 presses the butterfly-shaped gasket 7 downwards, the butterfly-shaped gasket 7 drives the second ceramic gasket 6 to move downwards, the second ceramic gasket 6 extrudes the tetrafluoro seal ring 4, the tetrafluoro seal ring 4 is extruded and stressed to expand and deform transversely, and the sealing performance of the pole is ensured; through

first screw hole

10 and 9 installation limit screw 11 of second screw hole, limit screw 11 can play limiting displacement, prevents that utmost point post sealing member from taking place to rotate, and the sealed effect of utmost point post is improved to the inseparable type of enhancement utmost point post sealing member that simultaneously can be further.

Example two

As shown in fig. 3, an anti-rotation pole sealing device for a lithium ion battery comprises an end cover plate 1, a pole body 2, an i-shaped pole sleeve 5, a second threaded hole 9 and a limit screw 11; the middle of the end cover plate 1 is inserted with an electrode post main body 2, a first ceramic gasket 3 is arranged on the electrode post main body 2, the first ceramic gasket 3 is positioned below the end cover plate 1, a tetrafluoro sealing ring 4 is arranged above the first ceramic gasket 3, the tetrafluoro sealing ring 4 is sleeved on the electrode post main body 2, an I-shaped electrode post sleeve 5 is arranged between the tetrafluoro sealing ring 4 and the end cover plate 1, the I-shaped electrode post sleeve 5 is formed by integrally casting stainless steel, the lower part of the I-shaped electrode post sleeve 5 is arranged between the end cover plate 1 and the first ceramic gasket 3, one side of the upper part of the I-shaped electrode post sleeve 5, which is far away from the electrode post main body 2, is attached above the end cover plate 1, one side of the upper part of the I-shaped electrode post sleeve 5, which is close to the, the end cover plate 1 and the tetrafluoro sealing ring 4 are connected more stably and tightly by arranging the I-shaped pole column sleeve 5.

Tetrafluoro sealing washer 4's upper and lower both sides all are provided with a plurality of sawtooth lugs 14, first ceramic packing ring 3 is provided with a plurality of first sawtooth recesses 12 with the one side equipartition of tetrafluoro sealing washer 4 contact, second ceramic packing ring 6 is provided with a plurality of second sawtooth recesses 13 with the one side equipartition of tetrafluoro sealing washer 4 contact, first sawtooth recess 12, second sawtooth recess 13 all links together with sawtooth lug 14 meshing, through setting up sawtooth lug 14 and first sawtooth recess 12, the cooperation of second sawtooth recess 13 is used, can make the sealed effect of utmost point post better.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. An anti-rotation pole sealing device of a lithium ion storage battery comprises an end cover plate (1), a pole body (2), an I-shaped pole sleeve (5), a second threaded hole (9) and a limiting screw rod (11), the electric pole comprises an end cover plate (1), and is characterized in that an end post main body (2) is inserted in the middle of the end cover plate (1), a first ceramic gasket (3) is installed on the end post main body (2), the first ceramic gasket (3) is located below the end cover plate (1), a tetrafluoro sealing ring (4) is installed above the first ceramic gasket (3), the tetrafluoro sealing ring (4) is sleeved on the end post main body (2), an I-shaped post sleeve (5) is installed between the tetrafluoro sealing ring (4) and the end cover plate (1), one side, far away from the end post main body (2), above the I-shaped post sleeve (5) is attached to the upper portion of the end cover plate (1), and one side, close to the end post main body (2), above the I-shaped post sleeve (5) is connected to the tetrafluoro; second ceramic packing ring (6) are installed to the top of tetrafluoro sealing washer (4), and the edge all around of second ceramic packing ring (6) is provided with first screw hole (10), and the equipartition is provided with four second screw holes (9) on end cover board (1), and second screw hole (9) are located under first screw hole (10), install stop screw (11) on first screw hole (10) and second screw hole (9).

2. The anti-rotation pole sealing device of the lithium ion battery according to claim 1, wherein the i-shaped pole sleeve (5) is integrally cast from stainless steel, and the lower part of the i-shaped pole sleeve (5) is arranged between the end cover plate (1) and the first ceramic gasket (3).

3. The anti-rotation pole sealing device of the lithium ion battery as claimed in claim 1, wherein a butterfly washer (7) is mounted above the second ceramic washer (6), and a fastening nut (8) is mounted above the butterfly washer (7).

4. The anti-rotation pole sealing device of the lithium ion battery according to claim 1, wherein a plurality of sawtooth bumps (14) are respectively arranged on the upper side and the lower side of the tetrafluoro seal ring (4), a plurality of first sawtooth grooves (12) are uniformly distributed on one side of the first ceramic gasket (3) contacting with the tetrafluoro seal ring (4), and a plurality of second sawtooth grooves (13) are uniformly distributed on one side of the second ceramic gasket (6) contacting with the tetrafluoro seal ring (4).

5. The anti-rotation pole sealing device of the lithium ion battery as claimed in claim 4, wherein the first sawtooth groove (12) and the second sawtooth groove (13) are engaged with the sawtooth projection (14).