CN212810417U - Power battery top cover assembly - Google Patents
Power battery top cover assembly Download PDFInfo
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- CN212810417U CN212810417U CN202021913849.5U CN202021913849U CN212810417U CN 212810417 U CN212810417 U CN 212810417U CN 202021913849 U CN202021913849 U CN 202021913849U CN 212810417 U CN212810417 U CN 212810417U
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- top cover
- power battery
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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 discloses a power battery top cap subassembly, this power battery top cap subassembly include top cap piece, sealing member, pole piece and riveting piece. Two through holes are arranged on the top cover plate. The sealing member is two, and every sealing member wears to establish in a through-hole. The pole pieces are two, each pole piece is fitted in a seal, and the top wall of the seal abuts against the pole piece. The riveting piece is two, and every riveting piece butt is on the diapire of a sealing member, and the riveting piece cover is established on the polar column spare and is connected with the other end of polar column spare, and to the negative pole, one riveting piece and the one end of the polar column spare of being connected with the riveting piece are formed by copper preparation. The power battery top cover assembly can reduce the production cost and the weight of the power battery top cover assembly.
Description
Technical Field
The utility model relates to a power battery technical field especially relates to a power battery top cap subassembly.
Background
In the power battery cover plate in the prior art, when a pole column and a top cover adopt a riveting structure, riveting is often carried out above the pole column, and a riveting area needs to be reserved on a pole column surface in the riveting mode, so that the welding space of the pole column surface is occupied, and the appearance of the front surface of the cover plate is influenced; if riveting is carried out below the pole, the cathode pole is usually a pure copper pole, so that the production cost of the power battery cover plate is too high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power battery top cap subassembly can reduce power battery top cap subassembly's manufacturing cost and weight.
For realizing the technical effect, the utility model discloses a power battery top cover subassembly's technical scheme as follows:
a power battery top cover assembly, comprising: the top cover plate is provided with two through holes; the number of the sealing elements is two, and each sealing element is arranged in one through hole in a penetrating mode; the number of the pole column pieces is two, each pole column piece is matched in one sealing piece, and the top wall of each sealing piece is abutted against the corresponding pole column piece; the pole column comprises two riveting pieces, each riveting piece abuts against the bottom wall of one sealing piece, the riveting pieces are sleeved on the pole column pieces and connected with the other ends of the pole column pieces, and one riveting piece and one end of each pole column piece connected with the riveting piece are both made of copper.
Furthermore, the two ends of the sealing element are respectively provided with a limiting edge, the limiting edges are arranged by the outer peripheral wall of the sealing element and extend towards the radial outer side of the through hole, one limiting edge is arranged between the top cover plate and the pole column element, and the other limiting edge is arranged between the top cover plate and the riveting element.
Further, the two sealing pieces and the top cover plate are integrally formed.
Further, the riveting piece is riveted and welded with the pole piece.
Furthermore, one end of the pole column piece is provided with a first convex ring, the riveting piece is provided with a connecting hole matched with the pole column piece, a first step surface is arranged in the connecting hole, the top wall of the first convex ring is abutted against the first step surface, and the peripheral surface of the first convex ring is abutted against the inner wall of the connecting hole.
Further, have the second step face in the through-hole, power battery top cap subassembly still includes plastic parts, go up plastic parts and be two, every go up plastic parts and establish one in the through-hole, every utmost point post spare wears to establish one go up in the plastic parts, go up plastic parts butt and be in on the second step face, the sealing member clamp is established go up plastic parts with between the utmost point post spare.
Further, utmost point post spare includes the body and encircles the second bulge loop that the body set up, it includes the butt and is in to go up the plastic part vertical portion on the global of body and butt the horizontal part on the diapire of second bulge loop.
Furthermore, the power battery top cover assembly further comprises a lower plastic part, two mounting holes are formed in the lower plastic part, a third step surface is arranged in each mounting hole, each riveting piece penetrates through one mounting hole, and the top wall of each riveting piece abuts against the third step surface.
Furthermore, two connecting bulges are further arranged on the lower plastic part, a limiting hole is formed in each riveting piece, and each connecting bulge penetrates through one limiting hole.
Further, the sealing member is any one of a PPS plastic member, a PFA plastic member, and a PP plastic member.
The utility model has the advantages that: the top wall and the bottom wall of the sealing element are respectively abutted against the pole column element and the riveting element, so that a better sealing effect is achieved between the pole column element and the top cover plate. Because the riveting piece butt is on the diapire of sealing member, make the riveting piece be located the below of top cap piece, utmost point post spare can make the firm fixing on the top cap piece of utmost point post spare through being connected with the riveting piece. The cathode pole of the power battery is usually made of pure copper with good electrical conductivity, and one end of the riveting piece and one end of the pole piece connected with the riveting piece are made of copper, so that the pole piece and the riveting piece are not required to be made of pure copper poles, the use amount of copper in the power battery cover plate assembly is reduced, and the production cost of the power battery cover plate assembly is remarkably reduced on the premise of ensuring the electrical conductivity of the pole piece formed by connecting the pole piece and the riveting piece. Meanwhile, the other end of the pole column piece made of copper can be made of aluminum, and the other pole column piece and the riveting piece can be made of aluminum. In addition, because the utmost point post spare is connected in the diapire direction of top cap piece with the riveting, need not to reserve the connection region on the roof of utmost point post spare, the utmost point cylinder of protection utmost point post that can be better. According to the utility model discloses a power battery cover plate subassembly, the better sealed effect of having guaranteed between utmost point post spare and the top cap piece of sealing member, the one end of a riveting piece and the utmost point post spare of being connected with the riveting piece is prepared by copper and is formed the manufacturing cost that can reduce power battery top cap subassembly and weight reduction, the utmost point cylinder face of protection utmost point post that can also be better.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a power battery top cover assembly according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an internal structure of a power battery top cover assembly according to an embodiment of the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 2 at A;
FIG. 4 is a schematic structural view of a lid member according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a pole piece, a rivet and a lower plastic part according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a sealing member according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an upper plastic part according to an embodiment of the present invention.
Reference numerals
1. A top cover sheet; 11. a through hole; 111. a second step surface; 12. an explosion-proof hole;
2. a seal member; 21. a limiting edge;
3. a pole piece; 31. a body; 32. a first convex ring; 33. a second convex ring;
4. riveting a connecting piece; 41. connecting holes; 411. a first step surface; 42. a limiting hole;
5. applying a plastic part; 51. a vertical portion; 52. a horizontal portion;
6. a plastic part is put; 61. mounting holes; 611. a third step surface; 62. a connecting projection; 7. an explosion-proof valve.
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.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably 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 relationship. 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 being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely 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.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The specific structure of the power battery top cover assembly according to the embodiment of the present invention will be described below with reference to fig. 1 to 7.
As shown in fig. 1-7, fig. 1 discloses a power battery top cover assembly, which comprises a top cover plate 1, a sealing member 2, a pole piece 3 and a rivet 4. Two through holes 11 are arranged on the top cover plate 1. The number of the sealing elements 2 is two, and each sealing element 2 is arranged in one through hole 11 in a penetrating mode. The pole pieces 3 are two, each pole piece 3 being fitted in one seal 2, the top wall of the seal 2 abutting on the pole piece 3. Riveting 4 are two, and every riveting 4 butt is on the diapire of a sealing member 2, and riveting 4 cover is established on utmost point post 3 and is connected with the other end of utmost point post 3, and one riveting 4 and the one end of the utmost point post 3 of being connected with riveting 4 are formed by copper preparation.
It can be understood that the top wall and the bottom wall of the sealing member 2 abut against the pole post member 3 and the rivet member 4, respectively, so that the pole post member 3 and the top cover plate 1 have a better sealing effect. Because riveting 4 butt is on the diapire of sealing member 2, makes riveting 4 be located the below of top cap piece 1, utmost point post spare 3 can make the firm fixing on top cap piece 1 of utmost point post spare 3 through being connected with riveting 4. The cathode pole of the power battery is usually made of pure copper with good conductivity, and one end of one riveting piece 4 and one end of the pole piece 3 connected with the riveting piece 4 are made of copper, so that the pole piece 3 and the riveting piece 4 are free from adopting the pure copper pole, the use amount of copper in the power battery cover plate assembly is reduced, and the production cost of the power battery cover plate assembly is remarkably reduced on the premise of ensuring the conductivity of the pole formed by connecting the pole piece 3 and the riveting piece 4. Meanwhile, the other end of the pole piece 3 made of copper can be made of aluminum, and the other pole piece 3 and the riveting piece 4 can be made of aluminum, so that the weight of the power battery top cover assembly can be reduced due to the fact that the using amount of copper is reduced, and the density of aluminum is smaller than that of copper. In addition, because utmost point post spare 3 is connected in the diapire direction of top cap piece 1 with riveting 4, need not to reserve the connection region on the roof of utmost point post spare 3, the utmost point cylinder of protection utmost point post that can be better.
According to the power battery cover plate component of this embodiment, the better sealed effect between 3 and the top cap piece of assurance utmost point post pieces of sealing member 2, the one end of 3 of one riveting piece 4 and the utmost point post piece of being connected with riveting piece 4 is prepared by copper and is formed the manufacturing cost that can reduce power battery top cap component and weight reduction, the utmost point cylinder of protection utmost point post that can also be better.
In some embodiments, as shown in fig. 2, 3 and 6, two ends of the sealing member 2 are respectively provided with a limiting edge 21, the limiting edges 21 are disposed on the outer peripheral wall of the sealing member 2 and extend toward the radial outer side of the through hole 11, one limiting edge 21 is sandwiched between the top cover plate 1 and the post member 3, and the other limiting edge 21 is sandwiched between the top cover plate 1 and the rivet member 4.
It can be understood that, the setting of two spacing limit 21 can further improve the sealed effect between utmost point post spare 3 and riveting 4 and the top cap piece 1 to improve the sealed effect between the inner wall of sealing member 2 and through-hole 11 simultaneously, can also reduce sealing member 2 in vertical direction and the top cap piece 1 between the possibility of relative displacement appear, thereby improve the stability of being connected of sealing member 2 and top cap piece 1, and then ensured the sealing performance between utmost point post spare 3 and the top cap piece 1.
In some embodiments, the two seals 2 are integral pieces with the top cover sheet 1.
It should be noted that, in the present invention, there are various methods for integrally forming the sealing member 2 and the top cover sheet 1, for example, in some embodiments, the sealing member 2 is integrally formed on the top cover sheet 1 by injection molding, compression molding, hot pressing, or other forming methods; in some embodiments, the sealing element 2 is integrally formed on the top cover sheet 1 by painting, gluing and other coating methods; in some embodiments, the sealing member 2 and the top cover plate 1 are formed by an integrally cast process. That is, in the present embodiment, the method of forming the packing 2 as an integrally molded piece with the top cover sheet 1 may be any one of molding methods. In the present embodiment, the structure in which the sealing member 2 and the top cover sheet 1 are not detachable is emphasized, rather than the process in which the sealing member 2 and the top cover sheet 1 are integrally molded.
It can be understood that the utility model discloses an in the in-service use of power battery top cap subassembly, because sealing member 2 and top cap piece 1 are integrated into one piece spare, relative motion can not appear between sealing member 2 and the top cap piece 1 in the assembly process, only need ensure two sealed limits of sealing member 2 and utmost point post spare 3 and the sealed effect of riveting 4 can to need not to use manual assembly spare sealing washer, thereby assembly process and equipment cost have been reduced, and be convenient for the installation of whole power battery top cap subassembly. In addition, even if the sealing element 2 deforms after long-term use, the sealing element 2 still can well achieve sealing and insulating effects after deformation because the sealing element 2 and the top cover sheet 1 cannot move relatively.
In some embodiments, the rivet 4 is riveted and welded to the pole piece 3.
It can be understood that riveting 4 cover is established on utmost point post 3, make between riveting 4 and utmost point post 3 can be through riveting firm connection, can play the sealed effect to the junction of riveting 4 and utmost point post 3 at the junction welded connection of riveting 4 and utmost point post 3, can also further strengthen the connection steadiness of riveting 4 and utmost point post 3, simultaneously because riveting 4 and utmost point post 3 have riveted before the welding, can reduce the possibility that relative displacement appears between riveting 4 and utmost point post 3 among the welding process, thereby ensure riveting 4 and utmost point post 3 equal butt on sealing member 2, avoid weakening the phenomenon of the sealed effect between utmost point post 3 and sealing member 2 among the welding process.
Optionally, in this embodiment, the rivet 4 and the post member 3 are laser-welded at the rivet connection between the rivet 4 and the post member 3, and the rivet and the post member 3 are welded.
In some embodiments, as shown in fig. 3 and 5, one end of the pole piece 3 is provided with a first protruding ring 32, the rivet 4 is provided with a connecting hole 41 matched with the pole piece 3, the connecting hole 41 has a first step surface 411 therein, the top wall of the first protruding ring 32 abuts on the first step surface 411, and the peripheral surface of the first protruding ring 32 abuts on the inner wall of the connecting hole 41.
It can be understood that first step face 411 can play limiting displacement to first bulge loop 32, ensures that utmost point post 3 can cooperate firmly in connecting hole 41, avoids the phenomenon that riveting piece 4 drops to take place, can enough be convenient for the riveting of utmost point post 3 and riveting piece 4, also can be convenient for weld from the junction of utmost point post 3 and connecting hole 41 to riveting piece 4 and utmost point post 3's the effect of being connected and convenience have been improved.
In some embodiments, as shown in fig. 3, 4 and 7, the through hole 11 has a second step surface 111 therein, the power battery top cover assembly further includes two upper plastic parts 5, each upper plastic part 5 is disposed in one through hole 11, each pole post part 3 is disposed in one upper plastic part 5 in a penetrating manner, the upper plastic parts 5 abut against the second step surface 111, and the sealing member 2 is sandwiched between the upper plastic parts 5 and the pole post parts 3.
It can be understood that the second step surface 111 can facilitate the installation of the plastic part 5, and the plastic part 5 can further improve the sealing performance between the pole column part 3 and the top cover plate 1.
In some embodiments, as shown in fig. 3, the pole piece 3 includes a body 31 and a second convex ring 33 disposed around the body 31, and the upper plastic piece 5 includes a vertical portion 51 abutting on the peripheral surface of the body 31 and a horizontal portion 52 abutting on the bottom wall of the second convex ring 33.
It can be understood that utmost point post spare 3 forms the area of contact that can increase utmost point post spare 3 and last plastic part 5 into stair structure to better assurance utmost point post spare 3 and last plastic part 5's stability of being connected, second bulge loop 33 can also play spacing effect to last plastic part 5 simultaneously, can reduce the possibility that plastic part 5 drops from top cap piece 1.
Optionally, the upper plastic part 5 can be provided as an insulating part, so as to achieve a better insulating effect on the pole piece 3.
In some embodiments, as shown in fig. 2, 3 and 5, the power battery top cover assembly further includes a lower plastic part 6, two mounting holes 61 are formed on the lower plastic part 6, a third step surface 611 is formed in each mounting hole 61, each rivet 4 is inserted into one mounting hole 61, and a top wall of each rivet 4 abuts against the third step surface 611.
It can be understood that the arrangement of lower plastic part 6 can not only play a better fixed effect to riveting piece 4, but also can further improve the sealing effect between pole column part 3 and top cover plate 1. The setting of third step surface 611 can improve the area of contact between riveting piece 4 and lower plastic part 6 to better assurance down plastic part 6 and riveting piece 4 and top cap piece 1's stability of being connected, reduce the possibility that plastic part 6 drops from riveting piece 4 and top cap piece 1 down.
Optionally, the lower plastic part 6 can be provided as an insulating part, so as to achieve a better insulating effect on the pole piece 3.
In some embodiments, as shown in fig. 2, 3 and 5, two connecting protrusions 62 are further disposed on the lower plastic part 6, one limiting hole 42 is disposed on each rivet 4, and each connecting protrusion 62 is disposed through one limiting hole 42.
It can be understood that, the cooperation of the connecting protrusion 62 and the limiting hole 42 can further play a limiting effect between the riveting member 4 and the lower plastic part 6, and further improve the connection stability between the riveting member 4 and the lower plastic part 6.
In some embodiments, the sealing member 2 is any one of PPS (polyphenylene sulfide) plastic, PFA (a small amount of copolymer of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene) plastic, and PP (polypropylene) plastic. Of course, in other embodiments of the present invention, the sealing member 2 may also be another insulating member such as rubber, which can perform a sealing function.
In some alternative embodiments, as shown in fig. 1 and 4, the top cover sheet 1 further comprises an explosion-proof hole 12, and the explosion-proof valve 7 is embedded in the explosion-proof hole 12. It will be appreciated that the provision of the explosion-proof valve 7 can improve the safety of use of the power battery top cover assembly.
Example (b):
a power battery top cover assembly according to an embodiment of the present invention is described below with reference to fig. 1-7.
The power battery top cover assembly of this embodiment includes top cover plate 1, sealing member 2, utmost point post spare 3, riveting 4, goes up plastic part 5, lower plastic part 6 and explosion-proof valve 7.
The top cover plate 1 is provided with two through holes 11 and an explosion-proof hole 12. The through hole 11 has a second step surface 111 therein.
The number of the sealing elements 2 is two, and each sealing element 2 is arranged in one through hole 11 in a penetrating mode. Two ends of the sealing element 2 are respectively provided with a limiting edge 21, the limiting edges 21 are arranged by the outer peripheral wall of the sealing element 2 and extend towards the radial outer side of the through hole 11, one limiting edge 21 is clamped between the top cover plate 1 and the pole piece 3, and the other limiting edge 21 is clamped between the top cover plate 1 and the riveting piece 4. The two sealing elements 2 and the top cover plate 1 are integrally formed. The sealing member 2 is any one of a PPS plastic member, a PFA plastic member, and a PP plastic member.
The pole pieces 3 are two, each pole piece 3 being fitted in one seal 2, the top wall of the seal 2 abutting on the pole piece 3. One end of the pole post member 3 is provided with a first convex ring 32, the riveting member 4 is provided with a connecting hole 41 matched with the pole post member 3, a first step surface 411 is arranged in the connecting hole 41, the top wall of the first convex ring 32 is abutted against the first step surface 411, and the circumferential surface of the first convex ring 32 is abutted against the inner wall of the connecting hole 41. The pole post 3 includes a body 31 and a second collar 33 disposed around the body 31, and the upper plastic 5 includes a vertical portion 51 abutting on the peripheral surface of the body 31 and a horizontal portion 52 abutting on the bottom wall of the second collar 33.
Riveting 4 are two, and every riveting 4 butt is on the diapire of a sealing member 2, and riveting 4 cover is established on utmost point post 3 and is connected with the other end of utmost point post 3, and one riveting 4 and the one end of the utmost point post 3 of being connected with riveting 4 are formed by copper preparation. The riveting piece 4 is riveted and welded with the pole piece 3.
Go up plastic part 5 and be two, every goes up plastic part 5 and establishes in a through-hole 11, and every utmost point post spare 3 wears to establish in last plastic part 5, goes up plastic part 5 butt on second step surface 111, and sealing member 2 presss from both sides and establishes between last plastic part 5 and utmost point post spare 3.
Two mounting holes 61 are formed in the lower plastic part 6, a third step surface 611 is formed in each mounting hole 61, each riveting piece 4 penetrates through one mounting hole 61, and the top wall of each riveting piece 4 abuts against the third step surface 611. The lower plastic part 6 is further provided with two connecting protrusions 62, each riveting part 4 is provided with a limiting hole 42, and each connecting protrusion 62 penetrates through one limiting hole 42.
The explosion-proof valve 7 is embedded in the explosion-proof hole 12.
According to the power battery top cover assembly of the present embodiment, the steps in the actual assembly process are as follows:
the sealing element 2 is encapsulated and injected on the top cover plate 1, two pole column pieces 3, two lower plastic pieces 6 and two riveting pieces 4 are installed on the top cover plate 1, the two pole column pieces 3 and the two riveting pieces 4 are riveted and fixed respectively from the lower side of the top cover plate 1, and the riveting areas between the two pole column pieces 3 and the two riveting pieces 4 are welded and fixed respectively by laser welding.
In the description herein, references to the description of "some embodiments," "other embodiments," etc., 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.
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 power battery top cover assembly, comprising:
the top cover plate (1), wherein two through holes (11) are formed in the top cover plate (1);
the number of the sealing elements (2) is two, and each sealing element (2) is arranged in one through hole (11) in a penetrating mode;
the number of the pole column parts (3) is two, each pole column part (3) is matched in one sealing element (2), and the top wall of each sealing element (2) is abutted against the corresponding pole column part (3);
the pole column is characterized by comprising two riveting pieces (4), wherein each riveting piece (4) abuts against the bottom wall of one sealing piece (2), the pole column (3) is sleeved with the riveting piece (4) and is connected with the other end of the pole column (3), and one riveting piece (4) and one end, connected with the riveting piece (4), of the pole column (3) are made of copper.
2. The power battery top cover assembly according to claim 1, wherein two ends of the sealing element (2) are respectively provided with a limiting edge (21), the limiting edges (21) are arranged by the outer peripheral wall of the sealing element (2) and extend towards the radial outer side of the through hole (11), one limiting edge (21) is clamped between the top cover sheet (1) and the pole column element (3), and the other limiting edge (21) is clamped between the top cover sheet (1) and the riveting element (4).
3. Power battery roof cover assembly according to claim 2, characterized in that the two sealing members (2) are in one piece with the roof sheet (1).
4. Power battery roof assembly according to claim 1, characterized in that the rivet (4) is riveted and welded to the pole piece (3).
5. The power battery top cover assembly according to claim 4, wherein a first convex ring (32) is arranged at one end of the pole column member (3), a connecting hole (41) matched with the pole column member (3) is formed in the riveting member (4), a first step surface (411) is arranged in the connecting hole (41), the top wall of the first convex ring (32) abuts against the first step surface (411), and the peripheral surface of the first convex ring (32) abuts against the inner wall of the connecting hole (41).
6. The power battery top cover assembly according to claim 1, wherein the through hole (11) has a second step surface (111), the power battery top cover assembly further comprises two upper plastic parts (5), each upper plastic part (5) is arranged in one through hole (11), each pole column part (3) is arranged in one upper plastic part (5) in a penetrating manner, the upper plastic part (5) abuts against the second step surface (111), and the sealing element (2) is clamped between the upper plastic part (5) and the pole column part (3).
7. Power battery roof assembly according to claim 6, characterized in that the pole piece (3) comprises a body (31) and a second collar (33) arranged around the body (31), the upper plastic part (5) comprising a vertical part (51) abutting on the circumference of the body (31) and a horizontal part (52) abutting on the bottom wall of the second collar (33).
8. The power battery top cover assembly according to claim 1, further comprising a lower plastic member (6), wherein two mounting holes (61) are formed in the lower plastic member (6), a third step surface (611) is formed in each mounting hole (61), each rivet (4) is inserted into one mounting hole (61), and the top wall of each rivet (4) abuts against the third step surface (611).
9. The power battery top cover assembly according to claim 8, wherein two connecting protrusions (62) are further arranged on the lower plastic part (6), each riveting part (4) is provided with one limiting hole (42), and each connecting protrusion (62) is arranged in one limiting hole (42) in a penetrating manner.
10. Power battery top cover assembly according to any of claims 1-9, characterized in that the sealing member (2) is any of PPS plastic, PFA plastic and PP plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021913849.5U CN212810417U (en) | 2020-09-04 | 2020-09-04 | Power battery top cover assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021913849.5U CN212810417U (en) | 2020-09-04 | 2020-09-04 | Power battery top cover assembly |
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| Publication Number | Publication Date |
|---|---|
| CN212810417U true CN212810417U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021913849.5U Active CN212810417U (en) | 2020-09-04 | 2020-09-04 | Power battery top cover assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227376A1 (en) * | 2021-04-29 | 2022-11-03 | 深圳市科达利实业股份有限公司 | Rivet-type battery cover |
| WO2024036736A1 (en) * | 2022-08-17 | 2024-02-22 | 湖北亿纬动力有限公司 | Top cover assembly and battery structure |
-
2020
- 2020-09-04 CN CN202021913849.5U patent/CN212810417U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227376A1 (en) * | 2021-04-29 | 2022-11-03 | 深圳市科达利实业股份有限公司 | Rivet-type battery cover |
| GB2610729A (en) * | 2021-04-29 | 2023-03-15 | Shenzhen Kedali Ind Co Ltd | Rivet-type battery cover |
| 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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