CN207398193U - A kind of power lithium-ion battery cover board dipole column draws negative end plate square structure - Google Patents
A kind of power lithium-ion battery cover board dipole column draws negative end plate square structure Download PDFInfo
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- CN207398193U CN207398193U CN201721351642.1U CN201721351642U CN207398193U CN 207398193 U CN207398193 U CN 207398193U CN 201721351642 U CN201721351642 U CN 201721351642U CN 207398193 U CN207398193 U CN 207398193U
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- cover board
- end plate
- hole
- pole
- square
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Abstract
The utility model discloses a kind of power lithium-ion battery cover board dipole columns to draw negative end plate square structure, it includes double hole square end plate and cathode rod structure, double hole square end plate lid is on the cover board, end plate pole through hole there are two being opened on double hole square end plate, cover board pole through hole there are two being opened on cover board, cathode rod structure is equipped with two, the end plate pole through hole on the cover board pole through hole and double hole square end plate on cover board is sequentially passed through from lower end respectively, and cathode rod structure and double hole square end plate and cover board are riveted from upper end using pneumatic riveter, cathode rod structure is red copper taper rivet structure, it includes appear on the stage structure and flat structure.The advantages of the utility model：Without laser welding, tissue difficulty is smaller, at low cost, good airproof performance；Cathode rod structure only has two parts so that processing technology becomes simple, package assembly component is few, of low cost, process is lossless, internal resistance is small, and the contact area of battery assembling is big, is suitble to high current charge-discharge.
Description
Technical field
The utility model is related to a kind of power lithium-ion battery cover board dipole columns to draw negative end plate square structure, belongs to ring
Border protection technique field.
Background technology
With capacity type, the application of power-type lithium ion battery, the extraction lug of house type housing cannot meet lithium
The needs of ion battery heavy-current discharge, pole type have begun that lug extraction is replaced to design, existing pole lead-out mode
Have：The first, is connected using nut snap ring, and the lithium ion battery of pole type design is during manufacture and use, due to spiral shell
Female turns repeatedly, and be easy to causeing pole and loosening influences cell sealing effect, serious that lug on pole piece can be caused to break with pole piece
It splits, battery life is made to shorten or internal short-circuit of battery；Second, welded together using pole and cover board, this kind needs to use
Laser welding, tissue difficulty is larger, and not only cost is higher for laser, and easily swashs cover board through influencing sealing effect.
Existing pole is made of top, lower part, and flat mesa-shaped pole platform, such as Chinese patent are set between top, lower part
CN101562241A " a kind of square lithium ion battery terminal post anti-rotation device ", the designing points of the patent are, this kind of structure
Coordinate stent, open up the structure to match with pole peripheral profile on stent, stent is assembled into one with pole.So that stent with
Pole locks mutually, although the structure can be effectively prevented polar-column rotation, this kind of structure is divided into three portions of upper, middle and lower
Point, manufacturing process is complex, not only increases technology difficulty, and adds process costs, since the diameter of lower part is smaller, battery
The contact area of assembling is also small, unsuitable high current charge-discharge.
Utility model content
The technical problems to be solved in the utility model, is to provide that a kind of processing technology is simple, package assembly part is few, cost
It is cheap, process is lossless, leakproofness is high, internal resistance is small, be suitble to high current charge-discharge power lithium-ion battery cover board it is bipolar
Column draws negative end plate square structure.
The utility model is realized by following proposal：A kind of power lithium-ion battery cover board dipole column draws negative end plate side
Shape structure, including double hole square end plate and cathode rod structure, the double hole square end plate is covered on the cover board, the diplopore square end
It is opened on plate there are two end plate pole through hole, is opened on the cover board there are two cover board pole through hole, the cathode rod structure is equipped with two
A, the end plate pole sequentially passed through respectively from lower end on cover board pole through hole and the double hole square end plate on the cover board leads to
Hole, and rivet the cathode rod structure and the double hole square end plate and the cover board from upper end using pneumatic riveter,
The cathode rod structure is red copper taper rivet structure, and including structure and the flat structure of appearing on the stage, the structure of appearing on the stage is connected to
The upper end of the flat structure, the structure of appearing on the stage sequentially pass through the cover board pole through hole and the end plate pole through hole, institute
The diameter for stating flat structure is more than the diameter of the cover board pole through hole and the end plate pole through hole, and the flat structure is stuck in
The lower end of the cover board.
The top of the end plate pole through hole is divided into reverse frustoconic, and lower part is divided into cylinder, the cover board pole through hole
Top is divided into cylinder, and lower part is divided into truncated cone-shaped.
The side wall of the reverse frustoconic of the end plate pole through hole be inclined-plane, the side wall of the truncated cone-shaped of the cover board pole through hole
For concave surface.
The bottom of the structure of appearing on the stage is the truncated cone-shaped agreed with cover board pole through hole lower part split-phase, the knot of appearing on the stage
The upper end of structure forms the reverse frustoconic agreed with the top split-phase of the end plate pole through hole after staking.
End plate insulation spacer is equipped between the double hole square end plate and the cover board, the end plate insulation spacer is wrapped in institute
Surrounding and the bottom of double hole square end plate are stated, the end plate insulation spacer is equipped with through hole.
Described appear on the stage is equipped with the convex pad of cone seal between structure and the cover board, the upper part of the convex pad of cone seal is worn
The through hole on the cover board pole through hole and the end plate insulation spacer is crossed, the lower end for being stuck in the cover board of lower part is described
Structure of appearing on the stage passes through the convex pad of the cone seal, and the flat structure is stuck in the lower end of the convex pad of the cone seal.
The lower end of the cover board is equipped with cover board insulation spacer, and the cover board insulation spacer is equipped with through hole, and the taper is close
The bottom of convex pad is sealed in the through hole of the cover board insulation spacer, the diameter of the flat structure is more than the cover board insulation spacer
Through hole diameter, the flat structure be stuck in the cone seal it is convex pad and the cover board insulation spacer lower end.
Flat structure of the cathode rod structure lower end is in contact.
The beneficial effects of the utility model are：
1st, a kind of power lithium-ion battery cover board dipole column of the utility model draws the negative terminal of negative end plate square structure
Structure is red copper taper rivet structure, is riveted with double hole square end plate and cover board using pneumatic riveter, without Laser Welding
It connects, tissue difficulty is smaller, at low cost, good airproof performance；
2nd, a kind of power lithium-ion battery cover board dipole column of the utility model draws the negative terminal of negative end plate square structure
Structure only there are two part, structure of appearing on the stage and flat structure, with respect to the background art in three parts, eliminate lower part,
So that processing technology becomes simple, package assembly component is few, of low cost, process is lossless, internal resistance is small, and battery assembles
Contact area it is big, be suitble to high current charge-discharge；
3rd, a kind of power lithium-ion battery cover board dipole column of the utility model is drawn on the cover board of negative end plate square structure
Cover board pole through hole and double hole square end plate on end plate pole through hole shape and structure so that after riveting cathode rod structure with it is double
The stability and leakproofness of hole square end plate and cover board are stronger；
4th, a kind of power lithium-ion battery cover board dipole column of the utility model draws negative end plate square structure and uses taper
It seals convex pad and surrounds cathode rod structure, more improve leakproofness；
5th, there are two a kind of power lithium-ion battery cover board dipole column extraction negative end plate square structure of the utility model is set
Cathode rod structure, two cathode rod structures are mutually locked, can be effectively prevented polar-column rotation.
Description of the drawings
Fig. 1 is that a kind of power lithium-ion battery cover board dipole column of the utility model draws facing for negative end plate square structure
Cross-sectional view.
Fig. 2 is the vertical view that a kind of power lithium-ion battery cover board dipole column of the utility model draws negative end plate square structure
Structure diagram.
Fig. 3 is the diplopore that a kind of power lithium-ion battery cover board dipole column of the utility model draws negative end plate square structure
Square end plate faces cross-sectional view.
Fig. 4 is the cover board that a kind of power lithium-ion battery cover board dipole column of the utility model draws negative end plate square structure
Face cross-sectional view.
Fig. 5 is the taper that a kind of power lithium-ion battery cover board dipole column of the utility model draws negative end plate square structure
Seal convex pad faces cross-sectional view.
Fig. 6 is the cathode that a kind of power lithium-ion battery cover board dipole column of the utility model draws negative end plate square structure
Positive structure diagram of the rod structure before not riveting.
Fig. 7 is the cathode that a kind of power lithium-ion battery cover board dipole column of the utility model draws negative end plate square structure
The positive structure diagram after staking of rod structure.
Fig. 8 is the positive structure diagram of the cathode rod structure in background technology.
In figure：1 is double hole square end plate, and 2 be cathode rod structure, and 3 be cover board, and 4 be end plate pole through hole, and 5 be cover board pole
Through hole, 6 be structure of appearing on the stage, and 7 be flat structure, and 8 be end plate insulation spacer, and 9 be the convex pad of cone seal, and 10 be cover board felt pad
Piece.
Specific embodiment
It is further illustrated with reference to Fig. 1-7 pairs of the utility model, but scope of protection of the utility model is not limited in described
Hold.
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, and word " interior " and " outer " refer respectively to court
To or away from particular elements geometric centers direction, and attached drawing uses using very simplified form and non-accurate ratio
Rate, only to purpose that is convenient, lucidly aiding in illustrating the utility model embodiment.
For clarity, not describing whole features of practical embodiments, in the following description, well known function is not described in detail
And structure, because they can make the utility model chaotic due to unnecessary details, it will be understood that in any practical embodiments
Exploitation in, it is necessary to make a large amount of implementation details to realize the specific objective of developer, such as according to related system or related business
The limitation of industry changes into another embodiment by one embodiment, additionally, it should think this development may be it is complicated and
It is time-consuming, but it is only to those skilled in the art routine work.
A kind of power lithium-ion battery cover board dipole column draws negative end plate square structure, including 1 He of double hole square end plate
Cathode rod structure 2, double hole square end plate 1 are covered on cover board 3, are opened on double hole square end plate 1 there are two end plate pole through hole 4, on cover board 3
It opens there are two cover board pole through hole 5, there are two cathode rod structure 2 is set, sequentially passes through the cover board pole on cover board 3 from lower end respectively
End plate pole through hole 4 on through hole 5 and double hole square end plate 1, and pneumatic riveter is used by cathode rod structure 2 and diplopore from upper end
Square end plate 1 and cover board 3 are riveted, and cathode rod structure 2 is red copper taper rivet structure, including structure 6 and the flat knot of appearing on the stage
Structure 7, structure of appearing on the stage 6 are connected to the upper end of flat structure 7, and structure of appearing on the stage 6 sequentially passes through cover board pole through hole 5 and end plate pole leads to
Hole 4, the diameter of flat structure 7 are more than the diameter of cover board pole through hole 5 and end plate pole through hole 4, and flat structure 7 is stuck in cover board 3
Lower end.
The top of end plate pole through hole 4 is divided into reverse frustoconic, and lower part is divided into cylinder, the upper part of cover board pole through hole 5
For cylinder, lower part is divided into truncated cone-shaped.
The side wall of the reverse frustoconic of end plate pole through hole 4 is inclined-plane, and the side wall of the truncated cone-shaped of cover board pole through hole 5 is recessed
Face.
The bottom of structure of appearing on the stage 6 is the truncated cone-shaped agreed with 5 lower part split-phase of cover board pole through hole, the upper end of structure of appearing on the stage 6
The reverse frustoconic agreed with the top split-phase of end plate pole through hole 4 is formed after staking.
End plate insulation spacer 8 is equipped between double hole square end plate 1 and cover board 3, end plate insulation spacer 8 is wrapped in double hole square end plate
1 surrounding and bottom, end plate insulation spacer 8 are equipped with through hole.
The convex pad 9 of cone seal is equipped between structure of appearing on the stage 6 and cover board 3, cover board pole is partially passed through on the convex pad 9 of cone seal
Through hole on column through hole 5 and end plate insulation spacer 8, the lower end for being stuck in cover board 3 of lower part, structure of appearing on the stage 6 pass through cone seal
Convex pad 9, flat structure 7 are stuck in the lower end of the convex pad 9 of cone seal.
The lower end of cover board 3 is equipped with cover board insulation spacer 10, and cover board insulation spacer 10 is equipped with through hole, the convex pad 9 of cone seal
Bottom in the through hole of cover board insulation spacer 10, the diameter of flat structure 7 is more than the diameter of the through hole of cover board insulation spacer 10,
Flat structure 7 is stuck in the lower end of the convex pad 9 of cone seal and cover board insulation spacer 10.
Flat structure 7 of 2 lower end of cathode rod structure is in contact.
The installation method of the utility model, the first step：Cover board 3 and double hole square end plate 1 are molded by mold；Second step：Injection
Machine is by the convex pad 9 of size injection cone seal, end plate insulation spacer 8, cover board insulation spacer 10；3rd step：Double hole square end plate 1 is put
It puts in end plate insulation spacer 8, end plate insulation spacer 8 is placed on cover board 3, and cover board insulation spacer 10 is mounted on the lower end of cover board 3,
The convex pad 9 of cone seal sequentially passes through cover board insulation spacer 10, cover board 3 and end plate insulation spacer 8, and cathode rod structure 2 passes through taper
Enter after sealing convex pad 9 in the end plate pole through hole of double hole square end plate 1；4th step：Using pneumatic riveter from upper end to cathode
Rod structure 2 is riveted.
Although more detailed elaboration is done to the technical solution of the utility model and has been enumerated, it should be understood that for
For those skilled in the art, modification is made to above-described embodiment or uses equivalent alternative solution, this skill to this field
Be for art personnel it is clear that on the basis of without departing from the utility model spirit these modifications or improvements, belong to
In the scope of the requires of the utility model protection.
Claims (8)
1. a kind of power lithium-ion battery cover board dipole column draws negative end plate square structure, it is characterised in that：It includes diplopore
Square end plate（1）With cathode rod structure（2）, the double hole square end plate（1）It covers in the cover board（3）On, the double hole square end plate（1）
On open there are two end plate pole through hole（4）, the cover board（3）On open there are two cover board pole through hole（5）, the cathode rod structure
（2）If there are two, the cover board is sequentially passed through from lower end respectively（3）On cover board pole through hole（5）With the double hole square end plate
（1）On end plate pole through hole（4）, and pneumatic riveter is used by the cathode rod structure from upper end（2）With the double hole square
End plate（1）And the cover board（3）It is riveted, the cathode rod structure（2）For red copper taper rivet structure, tied including appearing on the stage
Structure（6）With flat structure（7）, the structure of appearing on the stage（6）It is connected to the flat structure（7）Upper end, the structure of appearing on the stage（6）
Sequentially pass through the cover board pole through hole（5）With the end plate pole through hole（4）, the flat structure（7）Diameter be more than institute
State cover board pole through hole（5）With the end plate pole through hole（4）Diameter, the flat structure（7）It is stuck in the cover board（3）'s
Lower end.
2. a kind of power lithium-ion battery cover board dipole column according to claim 1 draws negative end plate square structure,
It is characterized in that：The end plate pole through hole（4）Top be divided into reverse frustoconic, lower part is divided into cylinder, and the cover board pole leads to
Hole（5）Top be divided into cylinder, lower part is divided into truncated cone-shaped.
3. a kind of power lithium-ion battery cover board dipole column according to claim 2 draws negative end plate square structure,
It is characterized in that：The end plate pole through hole（4）Reverse frustoconic side wall for inclined-plane, the cover board pole through hole（5）Round platform
The side wall of shape is concave surface.
4. a kind of power lithium-ion battery cover board dipole column according to claim 3 draws negative end plate square structure,
It is characterized in that：The structure of appearing on the stage（6）Bottom be and the cover board pole through hole（5）The truncated cone-shaped that lower part split-phase is agreed with, institute
State structure of appearing on the stage（6）Upper end formed after staking and the end plate pole through hole（4）The reverse frustoconic that agrees with of top split-phase.
5. a kind of power lithium-ion battery cover board dipole column according to claim 1 draws negative end plate square structure,
It is characterized in that：The double hole square end plate（1）With the cover board（3）Between be equipped with end plate insulation spacer（8）, the end plate felt pad
Piece（8）It is wrapped in the double hole square end plate（1）Surrounding and bottom, the end plate insulation spacer（8）It is equipped with through hole.
6. a kind of power lithium-ion battery cover board dipole column according to claim 5 draws negative end plate square structure,
It is characterized in that：The structure of appearing on the stage（6）With the cover board（3）Between be equipped with the convex pad of cone seal（9）, the convex pad of cone seal
（9）On partially pass through the cover board pole through hole（5）And the end plate insulation spacer（8）On through hole, lower part is stuck in
The cover board（3）Lower end, the structure of appearing on the stage（6）Through the convex pad of the cone seal（9）, the flat structure（7）It is stuck in
The convex pad of cone seal（9）Lower end.
7. a kind of power lithium-ion battery cover board dipole column according to claim 6 draws negative end plate square structure,
It is characterized in that：The cover board（3）Lower end be equipped with cover board insulation spacer（10）, the cover board insulation spacer（10）It is equipped with logical
Hole, the convex pad of cone seal（9）Bottom in the cover board insulation spacer（10）Through hole in, the flat structure（7）'s
Diameter is more than the cover board insulation spacer（10）Through hole diameter, the flat structure（7）It is stuck in the convex pad of the cone seal
（9）And the cover board insulation spacer（10）Lower end.
8. a kind of power lithium-ion battery cover board dipole column according to claim 1 draws negative end plate square structure,
It is characterized in that：The cathode rod structure（2）Flat structure of lower end（7）It is in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351642.1U CN207398193U (en) | 2017-10-19 | 2017-10-19 | A kind of power lithium-ion battery cover board dipole column draws negative end plate square structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351642.1U CN207398193U (en) | 2017-10-19 | 2017-10-19 | A kind of power lithium-ion battery cover board dipole column draws negative end plate square structure |
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| CN207398193U true CN207398193U (en) | 2018-05-22 |
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| CN201721351642.1U Active CN207398193U (en) | 2017-10-19 | 2017-10-19 | A kind of power lithium-ion battery cover board dipole column draws negative end plate square structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887534A (en) * | 2017-10-19 | 2018-04-06 | 江西恒动新能源有限公司 | A kind of power lithium-ion battery cover plate dipole column draws negative end plate square structure |
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2017
- 2017-10-19 CN CN201721351642.1U patent/CN207398193U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887534A (en) * | 2017-10-19 | 2018-04-06 | 江西恒动新能源有限公司 | A kind of power lithium-ion battery cover plate dipole column draws negative end plate square structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Square structure of bipolar column leading cathode end plate of cover plate of power lithium ion battery Effective date of registration: 20190318 Granted publication date: 20180522 Pledgee: Jiangxi State-owned Venture Capital Management Co.,Ltd. Pledgor: JIANGXI HD NEW ENERGY CO.,LTD. Registration number: 2019360000011 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191203 Granted publication date: 20180522 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221203 Granted publication date: 20180522 |