CN218039482U - Cover plate assembly and battery - Google Patents
Cover plate assembly and battery Download PDFInfo
- Publication number
- CN218039482U CN218039482U CN202221828162.0U CN202221828162U CN218039482U CN 218039482 U CN218039482 U CN 218039482U CN 202221828162 U CN202221828162 U CN 202221828162U CN 218039482 U CN218039482 U CN 218039482U
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- plastic
- cover plate
- utmost point
- point post
- sealing ring
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- 238000007789 sealing Methods 0.000 claims abstract description 54
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model relates to a battery technology field especially relates to an apron subassembly, and it includes that utmost point post and cover establish on utmost point post, and last plastic and the top cap piece that from top to bottom set gradually, and the apron subassembly is still including the cover establish the upper seal circle and the lower seal circle on utmost point post, and the upper seal circle is sealed to be set up between utmost point post and last plastic, and the lower seal circle is sealed to be set up between utmost point post and top cap piece. This apron subassembly is through addding the sealing washer, can guarantee the outer wall of utmost point post and go up the sealed between the inner wall of the central through-hole of plastic, further prevents that electrolyte from spilling from top cap subassembly. The utility model also provides a battery including above-mentioned apron subassembly, the apron subassembly still establishes the lower plastic on utmost point post and converges the dish including the cover, converges the dish and sets up in the below of top cap piece, and lower plastic setting is in the below of converging the dish, and this battery can prevent the weeping, guarantees the performance of battery.
Description
Technical Field
The utility model relates to a battery technology field especially relates to an apron subassembly and battery.
Background
The development of cylinder battery is with low costs, high strength, sealed as the design objective by force, and current cylinder battery's apron subassembly will converge the dish and weld in the top of utmost point post base, sealing washer laminating top cap piece and utmost point post, and the defect of this kind of structure lies in: the single sealing ring can only seal between the top cover plate and the pole, and when the battery is vibrated or expands due to internal gas generation, so that the cover plate assembly deforms, liquid leakage is easy to occur, normal use of the battery is affected, and the internal structure of the electronic equipment can be damaged.
Therefore, a cover assembly and a battery are needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cover plate assembly can improve the sealing performance of battery, prevents to take place the weeping.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides an apron subassembly, includes that utmost point post and cover establish on the utmost point post, and last plastic and the top-hat piece that from top to bottom set gradually, the apron subassembly is still established including the cover last sealing washer and the lower seal circle on the utmost point post, it sets up to go up the sealing washer seal utmost point post with go up between the plastic, the sealing setting of lower seal circle is in utmost point post with between the top-hat piece.
As the preferred scheme of an apron subassembly, still include the terminal, the terminal cover is established on the utmost point post, and set up go up the top of plastic, it includes annular first top surface to go up the sealing washer, first top surface butt the bottom of terminal.
As a preferable scheme of the cover plate assembly, a first convex part is circumferentially arranged on an outer wall of the upper sealing ring, the first convex part protrudes in a radial direction, a first concave part is circumferentially arranged on an inner wall of the central through hole of the upper plastic, the first concave part is recessed in the radial direction, and the first convex part abuts against the first concave part.
As a preferable aspect of the cover plate assembly, the upper sealing ring further includes an annular first bottom surface, and the lower sealing ring includes an annular second top surface abutting against the first bottom surface.
As a preferable mode of the cover plate assembly, the outer diameter of the first bottom surface is larger than that of the second top surface, and the first bottom surface is partially abutted against the top of the top cover plate.
As a preferable scheme of the cover plate assembly, a second convex part is circumferentially arranged on the outer wall of the lower sealing ring, the second convex part protrudes in the radial direction, and a third top surface of the second convex part abuts against the bottom of the top cover plate.
As a preferred scheme of the cover plate assembly, the pole comprises an abutting portion, the abutting portion is in a truncated cone shape, the closer the abutting portion is to the outer diameter of the battery cell, the larger the outer wall of the abutting portion abuts against the upper sealing ring and the lower sealing ring.
As a preferred scheme of the cover plate assembly, the bottom of the upper plastic is provided with a cross boss, the top of the top cover plate is provided with a cross groove, and the cross boss is inserted in the cross groove.
As a preferred scheme of apron subassembly, the bottom of terminal is provided with positioning groove, the top of going up the plastic is provided with the location boss, the location boss is inserted and is established in the positioning groove to prevent the terminal with go up the plastic and twist relatively.
Another object of the utility model is to provide a battery can prevent the weeping, guarantees the performance of battery.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a battery, includes foretell apron subassembly, the apron subassembly is still established including the cover lower plastic on the utmost point post and converge the dish, converge the dish and set up the below of top cap piece, the lower plastic sets up the below of converging the dish.
As a preferred scheme of a battery, the lower plastic is abutted against the surface of the top cover plate, a limiting convex column is arranged on the surface of the lower plastic, the top cover plate is abutted against the surface of the lower plastic, a limiting groove is formed in the surface of the lower plastic, and the limiting convex column is inserted into the limiting groove to prevent the lower plastic and the top cover plate from being twisted relatively.
The utility model has the advantages that:
the utility model provides an apron subassembly, establish on utmost point post including utmost point post and cover, and last plastic and the top cap piece that from top to bottom set gradually, the apron subassembly is still established including the cover and is established upper seal circle and lower seal circle on utmost point post, and the upper seal circle is sealed to be set up between utmost point post and last plastic, and the lower seal circle is sealed to be set up between utmost point post and top cap piece. This apron subassembly is through addding the sealing washer, can guarantee the outer wall of utmost point post and go up the sealed between the inner wall of the central through-hole of plastic, further prevents that electrolyte from spilling from top cap subassembly.
The utility model also provides a battery including above-mentioned apron subassembly, the apron subassembly still establishes the lower plastic on utmost point post and converges the dish including the cover, converges the dish and sets up in the below of top cap piece, and lower plastic setting is in the below of converging the dish, and this battery can prevent the weeping, guarantees the performance of battery.
Drawings
Fig. 1 is an exploded view of a cover plate assembly provided by an embodiment of the present invention;
fig. 2 is a cross-sectional view of a cover plate assembly according to an embodiment of the present invention.
In the figure:
1. a pole column; 11. an abutting portion;
2. a terminal;
3. plastic is coated; 31. positioning the boss;
4. a top cover sheet; 41. a cross-shaped groove;
5. a confluence disc;
6. plastic is arranged; 61. a limiting convex column;
7. an upper sealing ring; 71. a first top surface; 72. a first convex portion; 721. a first bottom surface;
8. a lower seal ring; 81. a second top surface; 82. a second convex portion; 821. and a third top surface.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some but not all of the elements relevant to the present invention are shown in the drawings.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection or a detachable connection; 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 in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The apron subassembly of current cylinder battery will converge the dish welding in the top of utmost point post base, sealing washer laminating top cap piece and utmost point post, and the defect of this kind of structure lies in: the single sealing ring can only seal between the top cover plate and the pole, and when the battery is vibrated or expands due to internal gas generation, so that the cover plate assembly deforms, liquid leakage is easy to occur, normal use of the battery is affected, and the internal structure of the electronic equipment can be damaged.
Therefore, the present embodiment provides a cover plate assembly to solve the above problems.
As shown in fig. 1-2, the cover plate assembly includes a terminal post 1, an upper plastic 3 and a top cover plate 4, which are sleeved on the terminal post 1 and are sequentially arranged from top to bottom, an upper sealing ring 7 and a lower sealing ring 8, which are sleeved on the terminal post 1, wherein the upper sealing ring 7 is arranged between the terminal post 1 and the upper plastic 3 in a sealing manner, and the lower sealing ring 8 is arranged between the terminal post 1 and the top cover plate 4 in a sealing manner. This apron subassembly is through addding sealing washer 7, can guarantee the sealed between the outer wall of utmost point post 1 and the inner wall of the central through-hole of last plastic 3, further prevents that electrolyte from spilling from top cap subassembly.
Preferably, the pole post 1 includes an abutting portion 11, the abutting portion 11 is in a truncated cone shape, and the outer wall of the abutting portion 11 abuts against the upper seal ring 7 and the lower seal ring 8 as the abutting portion 11 is closer to the outer diameter of the cell. Compared with a cylindrical shape, the truncated cone shaped abutting portion 11 is more beneficial to improving the pressure resistance of the pole 1. Go up the diameter of the inside through-hole of sealing washer 7 and along length direction unchangeable, so go up sealing washer 7 cover and establish back on the butt portion 11 of utmost point post 1, go up the bottom of sealing washer 7 and warp bigger than the top, the bottom is sealed inseparabler, can further improve the ability of taking precautions against to the electrolyte seepage. In a similar way, the diameter of the inner through hole of the lower sealing ring 8 is unchanged along the length direction, after the lower sealing ring 8 is sleeved on the abutting part 11 of the pole 1, the bottom of the lower sealing ring 8 is deformed more greatly than the top, the bottom is sealed more tightly, and the prevention capability of electrolyte leakage can be further improved.
Preferably, the cover plate assembly further includes a terminal 2, the terminal 2 is sleeved on the pole 1 and is disposed above the upper plastic 3, the upper sealing ring 7 includes an annular first top surface 71, and the first top surface 71 abuts against the bottom of the terminal 2. Since the upper sealing ring 7 is sleeved on the pole 1 in a sealing manner, the first top surface 71 can seal the bottom of the gap between the terminal 2 and the pole 1.
Preferably, the outer wall of the upper sealing ring 7 is circumferentially provided with a first protrusion 72, the first protrusion 72 protrudes in a radial direction, the inner wall of the central through hole of the upper plastic 3 is circumferentially provided with a first recess, the first recess is recessed in the radial direction, and the first protrusion 72 abuts against the first recess. The upper sealing ring 7 is matched with the truncated cone-shaped abutting part 11, the upper sealing ring 7 tends to move upwards, and the upper sealing ring 7 can be prevented from moving upwards due to the concave-convex matching between the upper sealing ring 7 and the upper plastic 3.
Preferably, the upper sealing ring 7 further comprises an annular first bottom surface 721, and the lower sealing ring 8 comprises an annular second top surface 81, the second top surface 81 abutting against the first bottom surface 721. Preferably, the outer diameter of the first bottom surface 721 is larger than that of the second top surface 81, and the first bottom surface 721 partially abuts against the top of the top cover sheet 4. The upper sealing ring 7 can seal the gap between the lower sealing ring 8 and the top cover plate 4, and prevent the electrolyte leaked from the gap from continuously seeping outwards.
Preferably, the outer wall of the lower seal ring 8 is circumferentially provided with a second protrusion 82, the second protrusion 82 protrudes in the radial direction, and a third top surface 821 of the second protrusion 82 abuts against the bottom of the top cover plate 4. And because the lower seal ring 8 also has the trend of upwards moving, can guarantee that the third top surface 821 is all the time with the bottom butt of top flap 4, realize sealedly.
In order to prevent the relative twisting between the upper plastic 3 and the top cover plate 4, it is preferable that the bottom of the upper plastic 3 is provided with a cross-shaped boss, the top of the top cover plate 4 is provided with a cross-shaped groove 41, and the cross-shaped boss is inserted into the cross-shaped groove 41.
In the same way, in order to prevent the terminal 2 and the upper plastic 3 from being twisted relatively, preferably, the bottom of the terminal 2 is provided with a positioning groove, the top of the upper plastic 3 is provided with a positioning boss 31, and the positioning boss 31 is inserted into the positioning groove. Optionally, the number of the positioning grooves is two, the two positioning grooves are arranged oppositely, and the positioning boss 31 is arranged in a corresponding matching manner with the positioning grooves, so that the twisting prevention effect is ensured.
The battery that this embodiment provided, including foretell apron subassembly, the apron subassembly still including the cover establish the lower plastic 6 on utmost point post 1 with converge the dish 5, converge the dish 5 and set up in the below of top cap piece 4, lower plastic 6 sets up in the below of converging dish 5.
As shown in fig. 1, preferably, the surface of the lower plastic 6 abutting against the top cover plate 4 is convexly provided with a limiting convex pillar 61, the surface of the top cover plate 4 abutting against the lower plastic 6 is provided with a limiting groove, and the limiting convex pillar 61 is inserted into the limiting groove to prevent the lower plastic 6 and the top cover plate 4 from being twisted relatively.
The battery can prevent liquid leakage and ensure the service performance of the battery.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (11)
1. The utility model provides an apron subassembly, its characterized in that establishes including utmost point post (1) and cover utmost point post (1) is last, and from top to bottom sets gradually last plastic (3) and top cap piece (4), the apron subassembly still establishes including the cover last sealing washer (7) and lower sealing washer (8) on utmost point post (1), it is in to go up sealing washer (7) sealed the setting utmost point post (1) with go up between plastic (3), lower sealing washer (8) are sealed to be set up utmost point post (1) with between the top cap piece (4).
2. The cover plate assembly according to claim 1, further comprising a terminal (2), wherein the terminal (2) is sleeved on the pole (1) and disposed above the upper plastic (3), and the upper sealing ring (7) comprises an annular first top surface (71), and the first top surface (71) abuts against the bottom of the terminal (2).
3. The cover plate assembly according to claim 1, wherein the outer wall of the upper sealing ring (7) is circumferentially provided with a first protrusion (72), the first protrusion (72) protrudes in a radial direction, the inner wall of the central through hole of the upper plastic (3) is circumferentially provided with a first recess, the first recess is radially recessed, and the first protrusion (72) abuts against the first recess.
4. The closure assembly according to claim 1, wherein the upper sealing ring (7) further comprises an annular first bottom surface (721), and the lower sealing ring (8) comprises an annular second top surface (81), the second top surface (81) abutting the first bottom surface (721).
5. The lid assembly according to claim 4, wherein the first bottom surface (721) has an outer diameter larger than the outer diameter of the second top surface (81), the first bottom surface (721) partially abutting against the top of the top sheet (4).
6. The cover plate assembly according to any one of claims 1 to 5, wherein a second protrusion (82) is circumferentially arranged on the outer wall of the lower sealing ring (8), the second protrusion (82) protrudes in a radial direction, and a third top surface (821) of the second protrusion (82) abuts against the bottom of the top cover plate (4).
7. The cover plate assembly according to any one of claims 1 to 5, wherein the pole (1) comprises an abutting portion (11), the abutting portion (11) is in a truncated cone shape, and the outer wall of the abutting portion (11) abuts against the upper sealing ring (7) and the lower sealing ring (8) as the abutting portion (11) is closer to the outer diameter of the cell and larger.
8. The cover plate assembly according to any one of claims 1 to 5, wherein the bottom of the upper plastic (3) is provided with a cross boss, the top of the top cover plate (4) is provided with a cross groove (41), and the cross boss is inserted into the cross groove (41).
9. The cover plate assembly according to claim 2, wherein a positioning groove is formed in the bottom of the terminal (2), a positioning boss (31) is formed in the top of the upper plastic (3), and the positioning boss (31) is inserted into the positioning groove to prevent the terminal (2) and the upper plastic (3) from twisting relatively.
10. A battery, comprising the cover plate assembly according to any one of claims 1 to 9, further comprising a lower plastic (6) and a converging disc (5) sleeved on the pole (1), wherein the converging disc (5) is disposed below the top cover plate (4), and the lower plastic (6) is disposed below the converging disc (5).
11. The battery of claim 10, wherein a limiting convex pillar (61) is convexly arranged on the surface of the lower plastic (6) abutting against the top cover sheet (4), a limiting groove is arranged on the surface of the top cover sheet (4) abutting against the lower plastic (6), and the limiting convex pillar (61) is inserted into the limiting groove to prevent the lower plastic (6) and the top cover sheet (4) from being twisted relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221828162.0U CN218039482U (en) | 2022-07-15 | 2022-07-15 | Cover plate assembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221828162.0U CN218039482U (en) | 2022-07-15 | 2022-07-15 | Cover plate assembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218039482U true CN218039482U (en) | 2022-12-13 |
Family
ID=84383253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221828162.0U Active CN218039482U (en) | 2022-07-15 | 2022-07-15 | Cover plate assembly and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218039482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036736A1 (en) * | 2022-08-17 | 2024-02-22 | 湖北亿纬动力有限公司 | Top cover assembly and battery structure |
-
2022
- 2022-07-15 CN CN202221828162.0U patent/CN218039482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036736A1 (en) * | 2022-08-17 | 2024-02-22 | 湖北亿纬动力有限公司 | Top cover assembly and battery structure |
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