CN209929450U - Battery cover plate assembly and power battery - Google Patents
Battery cover plate assembly and power battery Download PDFInfo
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- CN209929450U CN209929450U CN201921110532.5U CN201921110532U CN209929450U CN 209929450 U CN209929450 U CN 209929450U CN 201921110532 U CN201921110532 U CN 201921110532U CN 209929450 U CN209929450 U CN 209929450U
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- cover plate
- plate body
- electrode terminal
- battery cover
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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
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Abstract
The utility model discloses a battery cover plate subassembly and power battery belongs to battery technical field, and for solving current battery cover plate subassembly manufacturing process complicacy, utmost point post manufacturing and processing cost is high simultaneously, and technical problem such as inefficiency designs. The utility model discloses a battery cover plate subassembly includes apron body, two electrode terminals and sealing washer, and one of them electrode terminal is positive terminal, and another one electrode terminal is negative terminal, and positive terminal and negative terminal are all worn to locate the apron body, and the sealing washer cladding is in the outside of electrode terminal, and sealing washer and electrode terminal vulcanize the bonding, and the sealing washer is arranged in between electrode terminal and the apron body. The battery cover plate component has the characteristics of strong sealing property and insulating property, low cost, high production efficiency and simple manufacturing process.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery cover plate subassembly and power battery.
Background
At present, the structure of a power battery cover plate generally clamps an insulating part between a hollow rivet and an electrode terminal to seal a battery, or injects a bonding agent into the contact surface of the insulating part and the electrode terminal to strengthen sealing, and the insulating part is generally completed by direct injection molding, but the insulating property of the two sealing modes is poor, and the sealing effect is poor. In addition, in the manufacturing process of the battery, the connecting sheet and the lug need to be welded and connected with the adjacent battery, so that the manufacturing process is complex, and meanwhile, the manufacturing and processing cost of the pole is high and the efficiency is low. Against this background, there is a need for an improved power cell cover that effectively overcomes the various drawbacks described above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery cover plate subassembly, this battery cover plate subassembly has stronger leakproofness and insulating nature, with low costs, production efficiency is high, manufacturing process is simple's characteristics.
Another object of the present invention is to provide a power battery, which has the advantages of high sealing performance, high insulation performance, low cost, high production efficiency and simple manufacturing process.
To achieve the purpose, on one hand, the utility model adopts the following technical scheme:
a battery cover plate assembly comprises a cover plate body, two electrode terminals and a sealing ring, wherein one of the two electrode terminals is a positive electrode terminal, the other electrode terminal is a negative electrode terminal, and the positive electrode terminal and the negative electrode terminal are both arranged in the cover plate body in a penetrating manner; the sealing ring is coated on the outer side of the electrode terminal, the sealing ring is vulcanized and bonded with the electrode terminal, and the sealing ring is arranged between the electrode terminal and the cover plate body.
Optionally, the cover plate body comprises a light cover plate and a matching cover plate, the light cover plate is provided with two mounting holes, the mounting holes are counter bores, and the sealing ring is arranged in the counter bores; the cooperation apron is arranged in the downside of light apron, the cooperation apron be equipped with two with the first through-hole that the mounting hole corresponds, electrode terminal wears to locate correspondingly first through-hole with in the mounting hole.
Optionally, the battery cover plate assembly further comprises two pressing blocks, the two pressing blocks are provided with second through holes, the electrode terminals penetrate through the second through holes, and the pressing blocks are abutted against the optical cover plate to be fixed.
Optionally, the safety valve further comprises a safety valve and an explosion-proof sheet, wherein the matching cover plate is provided with a groove part, and the safety valve is arranged above the groove part and is stopped against the matching cover plate; the light cover plate is provided with a third through hole, and the explosion-proof piece is arranged above the third through hole and is stopped against the light cover plate.
Optionally, the electrode terminal includes a first plate, a second plate, and a third plate, one end of the second plate is connected to the first plate and perpendicular to the first plate, and the other end of the second plate is connected to the third plate and perpendicular to the third plate.
Optionally, the first plate body is perpendicular to the cover plate body, the second plate body is parallel to the cover plate body, and the third plate body is perpendicular to the cover plate body.
Optionally, a plurality of fourth through holes are formed in the second plate body, and the fourth through holes are distributed at intervals.
Optionally, the sealing washer includes the main part and sets up opening in the main part, the opening is including the first opening that is located the main part top surface and the second opening that is located the main part downside, the second plate body cladding in the main part, the first plate body is followed first opening stretches out, the third plate body is followed the second opening stretches out.
Optionally, the positive terminal is an aluminum connecting sheet, and the negative terminal is a copper connecting sheet; or the sealing ring is a fluororubber ring.
The utility model discloses battery cover plate subassembly is prior art's beneficial effect relatively: the battery cover plate assembly comprises a cover plate body, an electrode terminal and a sealing ring, wherein the positive terminal and the negative terminal are arranged in the cover plate body in a penetrating mode, the sealing ring is coated on the outer side of the electrode terminal and is bonded with the electrode terminal in a vulcanization mode, the sealing ring is arranged between the electrode terminal and the cover plate body, one end of the electrode terminal can be directly welded with a lug, and the other end of the electrode terminal can be directly connected with an adjacent battery. Meanwhile, the sealing ring is bonded with the electrode terminal through vulcanization, so that the sealing ring has high sealing performance and insulating performance.
On the other hand, the utility model adopts the following technical scheme:
a power battery comprises the battery cover plate component.
The utility model discloses power battery is prior art's beneficial effect relatively: the power battery comprises the battery cover plate assembly, so that the power battery also has the advantages of strong sealing property and insulation property, low cost, high production efficiency and simple manufacturing process.
Drawings
Fig. 1 is a schematic structural diagram of a battery cover plate assembly according to an embodiment of the present invention;
fig. 2 is an exploded view of a battery cover plate assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electrode terminal according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a seal ring according to an embodiment of the present invention.
Reference numerals:
a cover plate body-1; a light cover plate-11; mounting holes-111; a third through-hole-112; a mating cover-12; a first through-hole-121; a groove portion-122; an electrode terminal-2; a first plate body-21; a second plate body-22; a fourth through-hole-221; a third plate body-23; a sealing ring-3; a body-31; a first opening-321; a second opening-322; briquetting-4; a second through hole-41; a safety valve-5; and 4, an explosion-proof sheet-6.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
A battery cover plate assembly according to an embodiment of the present invention is described below with reference to fig. 1 to 4.
As shown in fig. 1 to 2, the utility model discloses a battery cover plate assembly includes apron body 1, electrode terminal 2 and sealing washer 3, and electrode terminal 2 is two, and one of them electrode terminal 2 is the positive terminal, and another one electrode terminal 2 is the negative terminal, and positive terminal and negative terminal are all worn to locate in apron body 1, and the cladding of sealing washer 3 is in the outside of electrode terminal 2, and sealing washer 3 vulcanizes with electrode terminal 2 and bonds, and sealing washer 3 is arranged in between electrode terminal 2 and the apron body 1.
It can be understood that sealing washer 3 and electrode terminal 2 bond through vulcanizing for sealing washer 3 becomes a whole with electrode terminal 2, replaced utmost point post among the prior art, reduced the welding step, optimized manufacturing process, simplified the structure of apron subassembly, and simultaneously, reduced manufacturing cost, improved production efficiency, in addition, still have stronger leakproofness and insulating nature, effectively avoided revealing of electrolyte, thereby avoided the emergence of phenomena such as power battery short circuit in the use, the electric leakage, capacity decay.
Optionally, as shown in fig. 2, the cover plate body 1 includes a light cover plate 11 and a matching cover plate 12, the light cover plate 11 is provided with two mounting holes 111, the mounting holes 111 are counter bores, the seal ring 3 is disposed in the counter bores, the matching cover plate 12 is disposed on the lower side surface of the light cover plate 11, the matching cover plate 12 is provided with two first through holes 121 corresponding to the mounting holes 111, and the electrode terminals 2 are inserted into the corresponding first through holes 121 and the mounting holes 111.
It can be understood that the mounting hole 111 is a counter bore, which improves the stability of the sealing ring 3 placed on the cover plate body 1. Further, the mating cover 12 is provided with two first through-holes 121 corresponding to the mounting holes 111, facilitating the insertion of the electrode terminals 2 into the optical cover 11 and the mating cover 12 at the same time.
Advantageously, the optical cover plate 11 is provided with identification marks of the positive terminal and the negative terminal, which is helpful for an operator to distinguish the directions of the positive electrode and the negative electrode.
Optionally, as shown in fig. 1 to fig. 2, the battery cover plate assembly further includes two pressing blocks 4, each of the two pressing blocks 4 is provided with a second through hole 41, the electrode terminal 2 is inserted into the second through hole 41, and the pressing block 4 abuts against the optical cover plate 11 to be fixed.
It should be added that the pressing block 4 is welded on the optical cover plate 11, so as to further enhance the sealing performance of the battery cover plate assembly, and at the same time, fix the positions of the sealing ring 3 and the electrode terminal 2, so as to prevent loosening and sliding. Of course, in other embodiments of the present invention, the pressing block 4 may be connected to the optical cover plate 11 by other connection methods.
Optionally, as shown in fig. 1 to 2, a safety valve 5 and an explosion-proof sheet 6 are further included, the mating cover plate 12 is provided with a groove portion 122, the safety valve 5 is disposed above the groove portion 122 and abuts against the mating cover plate 12, the optical cover plate 11 is provided with a third through hole 112, and the explosion-proof sheet 6 is disposed above the third through hole 112 and abuts against the optical cover plate 11.
It should be noted that, when the power battery generates gas, the internal gas pressure of the power battery is too high, and the explosion-proof sheet 6 is broken to release the gas, so that the risk of explosion of the power battery is reduced, and the safety performance is improved.
Optionally, the positive terminal is an aluminum connecting sheet, and the negative terminal is a copper connecting sheet. It should be noted that, in some embodiments of the present invention, the positive terminal is not limited to the aluminum connecting sheet, and the negative terminal is not limited to the copper connecting sheet.
Alternatively, as shown in fig. 3, the electrode terminal 2 includes a first plate body 21, a second plate body 22, and a third plate body 23, one end of the second plate body 22 is connected to the first plate body 21 and perpendicular to the first plate body 21, and the other end of the second plate body 22 is connected to the third plate body 23 and perpendicular to the third plate body 23. The first plate 21, the second plate 22 and the third plate 23 may be integrally formed.
Alternatively, as shown in fig. 1 to 2, the first plate 21 is perpendicular to the cover plate body 1, the second plate 22 is parallel to the cover plate body 1, and the third plate 23 is perpendicular to the cover plate body 1.
It can be understood that the first plate body 21 and the third plate body 23 are perpendicular to the cover plate body 1, which facilitates that one end of the electrode terminal 2 can be directly welded with the tab, thereby simplifying the connection of the cover plate assembly with the pole core, and the other end of the electrode terminal 2 can be directly connected with the adjacent battery, thereby simplifying the connection of the adjacent battery.
Optionally, as shown in fig. 3, a plurality of fourth through holes 221 are formed in the second plate 22, and the plurality of fourth through holes 221 are distributed at intervals.
It should be noted that, when the sealing ring 3 coated on the electrode terminal 2 is produced, the electrode terminal 2 is placed in a mold, and the rubber material of the sealing ring 3 in a molten state is placed into the mold for shaping, since the plurality of fourth through holes 221 are formed in the second plate 22, the rubber material of the sealing ring 3 also penetrates into the plurality of fourth through holes 221, after the rubber liquid of the sealing ring 3 is cooled, the electrode terminal 2 and the sealing ring 3 are integrated into a whole, which further enhances the sealing property and the insulating property. In addition, generally, the second plate 22 is provided with three fourth through holes 221, and of course, in other embodiments of the present invention, the number of the fourth through holes 221 may be adjusted according to specific situations.
Alternatively, as shown in fig. 4, the seal ring 3 includes a main body 31 and an opening portion provided in the main body 31, the opening portion includes a first opening portion 321 located on an upper side surface of the main body 31 and a second opening portion 322 located on a lower side surface of the main body 31, the second plate body 22 is covered in the main body 31, the first plate body 21 protrudes from the first opening portion 321, and the third plate body 23 protrudes from the second opening portion 322.
It can be understood that the structure of the sealing ring 3 is better matched with the structure of the electrode terminal 2, and the sealing property and the insulating property are further improved.
Optionally, the sealing ring 3 is a fluororubber ring, and the sealing body adopts fluororubber as a sealing material, so that the sealing ring has the advantages of good corrosion resistance, good sealing performance, good electrical insulation performance, high and low temperature resistance, strong aging resistance and the like, and the sealing performance is better and more reliable. Of course, in other embodiments of the present invention, the sealing ring 3 is not limited to the use of fluororubber, and other elastomers may be selected.
A power battery comprises a battery cover plate assembly. The power battery has the advantages of strong sealing property and insulating property, low cost, high production efficiency and simple structure.
The following detailed description of the preferred embodiments of the present invention is made with reference to fig. 1 to 4: as shown in fig. 1 to 2, the battery cover plate assembly includes a cover plate body 1, two electrode terminals 2, a fluororubber ring, two pressing blocks 4, a safety valve 5 and an explosion-proof sheet 6, wherein one of the two electrode terminals 2 is a positive electrode terminal, the other one is a negative electrode terminal, the positive electrode terminal is an aluminum connecting sheet, the negative electrode terminal is a copper connecting sheet, and both the two electrode terminals 2 are inserted into the cover plate body 1; the fluororubber ring is coated on the outer side of the electrode terminal 2, and is vulcanized and bonded with the electrode terminal 2, and the fluororubber ring is arranged between the electrode terminal 2 and the cover plate body 1. As shown in fig. 2, the cover plate body 1 includes a light cover plate 11 and a matching cover plate 12, the light cover plate 11 is provided with two counter bores, and the seal ring 3 is placed in the counter bores; the matching cover plate 12 is disposed on the lower side of the optical cover plate 11, the matching cover plate 12 is provided with two first through holes 121 corresponding to the mounting holes 111, and the electrode terminals 2 are inserted into the corresponding first through holes 121 and the mounting holes 111. The two pressing blocks 4 are provided with second through holes 41, the electrode terminals 2 penetrate through the second through holes 41, and the pressing blocks 4 are stopped against the optical cover plate 11 to be fixed. The matching cover plate 12 is provided with a groove portion 122, the safety valve 5 is arranged above the groove portion 122 and is stopped against the matching cover plate 12, the light cover plate 11 is provided with a third through hole 112, and the explosion-proof sheet 6 is arranged above the third through hole 112 and is stopped against the light cover plate 11. As shown in fig. 3, each of the electrode terminals 2 includes a first plate body 21, a second plate body 22, and a third plate body 23, one end of the second plate body 22 is connected to the first plate body 21 and perpendicular to the first plate body 21, and the other end of the second plate body 22 is connected to the third plate body 23 and perpendicular to the third plate body 23. The first plate 21 is perpendicular to the cover plate body 1, the second plate 22 is parallel to the cover plate body 1, and the third plate 23 is perpendicular to the cover plate body 1. The second plate 22 is provided with a plurality of fourth through holes 221, and the plurality of fourth through holes 221 are distributed at intervals. As shown in fig. 4, the fluororubber ring includes a main body 31 and opening portions provided in the main body 31, the opening portions include a first opening portion 321 located on an upper side surface of the main body 31 and a second opening portion 322 located on a lower side surface of the main body 31, the second plate 22 is covered in the main body 31, the first plate 21 protrudes from the first opening portion 321, and the third plate 23 protrudes from the second opening portion 322.
The battery cover plate component of the embodiment simplifies the manufacturing process, improves the production efficiency, reduces the manufacturing cost, reduces the cost of the cover plate of the automobile power battery, has simple connection of battery lugs, reduces the weight of the power battery, provides space, saves the cost, and is improvement and innovation.
In the description herein, references to the description of "some embodiments," "other embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Further, it is to be understood that the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "connected," "mounted," "secured," and the like are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The above-mentioned meaning belonging to the present invention can be understood by those skilled in the art according to the specific situation.
Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A battery cover plate assembly, comprising:
a cover plate body (1);
two electrode terminals (2), wherein one of the electrode terminals (2) is a positive electrode terminal, the other electrode terminal (2) is a negative electrode terminal, and the positive electrode terminal and the negative electrode terminal are both arranged in the cover plate body (1) in a penetrating manner; and
sealing washer (3), sealing washer (3) cladding is in the outside of electrode terminal (2), just sealing washer (3) with electrode terminal (2) vulcanize the bonding, just sealing washer (3) seal set up in electrode terminal (2) with between apron body (1).
2. The battery cover plate assembly according to claim 1, wherein the cover plate body (1) comprises:
the sealing ring sealing device comprises a light cover plate (11), wherein the light cover plate (11) is provided with two mounting holes (111), the mounting holes (111) are counter bores, and the sealing rings (3) are arranged in the counter bores; and
the cooperation apron (12), the downside of light apron (11) is arranged in to cooperation apron (12), cooperation apron (12) be equipped with two with corresponding first through-hole (121) of mounting hole (111), electrode terminal (2) wear to locate correspondingly first through-hole (121) with in mounting hole (111).
3. The battery cover plate assembly according to claim 2, further comprising two pressing blocks (4), wherein the two pressing blocks (4) are provided with second through holes (41), the electrode terminal (2) is arranged in the second through hole (41), and the pressing blocks (4) are stopped against the optical cover plate (11).
4. The battery cover plate assembly according to claim 2, further comprising a safety valve (5) and a burst disk (6), wherein the mating cover plate (12) is provided with a recessed portion (122), the safety valve (5) is disposed above the recessed portion (122) and abuts against the mating cover plate (12); the light cover plate (11) is provided with a third through hole (112), and the explosion-proof sheet (6) is arranged above the third through hole (112) and is stopped against the light cover plate (11).
5. The battery cover plate assembly of claim 1, wherein the electrode terminal (2) comprises a first plate body (21), a second plate body (22), and a third plate body (23), one end of the second plate body (22) being connected to the first plate body (21) and perpendicular to the first plate body (21), and the other end of the second plate body (22) being connected to the third plate body (23) and perpendicular to the third plate body (23).
6. The battery cover plate assembly according to claim 5, wherein the first plate body (21) is perpendicular to the cover plate body (1), the second plate body (22) is parallel to the cover plate body (1), and the third plate body (23) is perpendicular to the cover plate body (1).
7. The battery cover plate assembly according to claim 5, wherein a plurality of fourth through holes (221) are formed in the second plate body (22), and the plurality of fourth through holes (221) are spaced apart from each other.
8. The battery cover plate assembly according to claim 5, wherein the sealing ring (3) comprises a main body (31) and an opening portion provided in the main body (31), the opening portion comprising a first opening portion (321) at an upper side of the main body (31) and a second opening portion (322) at a lower side of the main body (31), the first plate body (21) being enclosed in the main body (31), the first plate body (21) protruding from the first opening portion (321), the third plate body (23) protruding from the second opening portion (322).
9. The battery cover plate assembly of claim 1, wherein the positive terminal is an aluminum tab and the negative terminal is a copper tab; and/or the sealing ring (3) is a fluororubber ring.
10. A power cell comprising the cell cover plate assembly of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921110532.5U CN209929450U (en) | 2019-07-16 | 2019-07-16 | Battery cover plate assembly and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921110532.5U CN209929450U (en) | 2019-07-16 | 2019-07-16 | Battery cover plate assembly and power battery |
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| Publication Number | Publication Date |
|---|---|
| CN209929450U true CN209929450U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921110532.5U Active CN209929450U (en) | 2019-07-16 | 2019-07-16 | Battery cover plate assembly and power battery |
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| Country | Link |
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| CN (1) | CN209929450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618596A (en) * | 2020-06-17 | 2020-09-04 | 苏州三众新能源科技有限公司 | Production process of explosion-proof lithium battery cover plate |
-
2019
- 2019-07-16 CN CN201921110532.5U patent/CN209929450U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618596A (en) * | 2020-06-17 | 2020-09-04 | 苏州三众新能源科技有限公司 | Production process of explosion-proof lithium battery cover plate |
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