SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a top cap subassembly, the notes liquid hole that it has can realize dismantling many times and sealing, can effectively prolong the life of battery.
As the above conception, the utility model discloses the technical scheme who adopts is:
the top cap subassembly sets up in battery case's opening part, includes:
the top cover is provided with a liquid injection hole;
the injection molding piece is arranged on one side, facing the battery shell, of the top cover, a liquid injection groove correspondingly communicated with the liquid injection hole is formed in the injection molding piece, a connecting bulge is arranged at the bottom of the liquid injection groove, and a circulation hole is formed in the side wall of the liquid injection groove in a penetrating mode;
the sealing nail is made of a plastic material, penetrates through the liquid injection hole and is fixed with the connecting protrusion in a hot melting mode, and the sealing nail is used for plugging the liquid injection hole.
Optionally, a part of the sealing nail exposed out of the liquid injection hole is provided with a dismounting groove.
Optionally, the connecting protrusion is of a conical structure.
Optionally, the maximum height of the connecting protrusion is a, and a ranges from 2mm to 5mm.
Optionally, the injection molding includes injection molding body and notes liquid portion, it locates to annotate the liquid portion protruding the injection molding body deviates from one side of top cap, annotate the liquid slot part set up in annotate on the liquid portion.
Optionally, the sealing nail includes connecting portion and sealing part that is connected, the connecting portion be located annotate the cistern and with it is fixed to connect protruding hot melt, the sealing part be located annotate downthehole and with annotate the pore wall hot melt seal in liquid hole.
Optionally, a gap is formed between the connecting part and the side wall of the liquid injection groove.
Optionally, the sealing spike and the injection molded part are made of different plastic materials.
Optionally, the flow hole is provided in plurality, and the flow holes are arranged at intervals.
Another object of the utility model is to provide a battery, the notes liquid hole that it has can realize a lot of dismantlements and sealed, can effectively prolong the life of battery.
As the conception, the utility model adopts the technical proposal that:
the battery comprises the top cover assembly.
The utility model has the advantages that:
the utility model provides a top cap subassembly, can set up in the opening part of battery, this top cap subassembly includes the top cap, injection molding and sealed nail, wherein the injection molding sets up in the top cap towards one side of battery case, and be provided with on the top cap and annotate the liquid hole, be provided with on the injection molding and annotate the cistern, it corresponds and feeds through with annotating the liquid hole to annotate the cistern, it is provided with the runner hole to link up on the lateral wall in cistern, when annotating the liquid to the battery, electrolyte can be through annotating the liquid hole, annotate the inside that liquid groove and runner hole injected the battery, and annotate the liquid completion back at the battery, then usable sealed nail shutoff notes liquid hole, with the inside and the external environment's of realization battery partition. Wherein, the tank bottom of annotating the liquid groove is provided with the connection arch, and sealed nail is made by the plastics material, and when sealed nail passed annotates the liquid hole and was located the liquid groove under the hot melt state, sealed nail will be fixed with the protruding hot melt of connection and the shutoff annotates the liquid hole. When the battery needs to be refilled, the seal nail can be rotated by using the dismounting piece so as to be separated from the fixing of the connecting bulge, and therefore the seal of the refilling hole is released. And then if the liquid injection hole needs to be sealed again, a new sealing nail can be adopted, and is fixed in the liquid injection groove by hot melting again, and the liquid injection hole is plugged.
The utility model provides a battery includes foretell top cap subassembly, and the notes liquid hole that it has can realize a lot of dismantlements and sealed, can effectively prolong the life of battery.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the element or the components must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood as a specific case by 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.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 to 3, the present embodiment provides a top cap assembly, which can be disposed at an opening of a battery, and includes a top cap 2, an injection-molded part 3, and a sealing nail 1. In the battery structure, injection molding 3 sets up in top cap 2 one side towards battery case, and injection molding 3 inlays mutually fixedly with top cap 2 ultrasonic wave hot melt, is provided with on top cap 2 and annotates the liquid hole, has on the injection molding 3 with annotate the notes liquid passageway of liquid hole intercommunication. When utilizing injection device to annotate the liquid to the battery, electrolyte flows into from injection device and annotates the liquid hole, and then flows into inside the battery through annotating the liquid passageway again, and after annotating the liquid and accomplish, need utilize sealed nail 1 to seal annotating the liquid hole promptly to make inside and external environment of battery isolated. In this embodiment, the injection molding piece 3 is provided with the injection groove 310, the injection groove 310 corresponds to and communicates with the injection hole, the sidewall of the injection groove 310 is provided with a circulation hole 311 in a penetrating manner, the bottom of the injection groove 310 is provided with a connection protrusion 312, the circulation hole 311 facilitates the passing of electrolyte, and the connection protrusion 312 facilitates the fixing and detaching of the seal nail 1.
Specifically, the sealing nail 1 is made of a plastic material, and when the liquid injection hole is sealed, the sealing nail 1 can be subjected to hot melting treatment by using a hot melting device, and then the sealing nail 1 subjected to hot melting treatment passes through the liquid injection hole and is inserted into the liquid injection groove 310. The sealing nail 1 made of plastic can be bonded with the connecting bulge 312 in a hot melting state so as to be fixed in the liquid injection groove 310, and the sealing nail 1 positioned in the liquid injection hole can be used for plugging the liquid injection hole in a softening state through interference fit with the liquid injection hole. When needs reinject into electrolyte to the battery, sealed nail 1 will be followed the notes liquid hole again and shifted out, when dismantling sealed nail 1, usable dismounting member rotates sealed nail 1, through applying the torsion of circumference to sealed nail 1 to make sealed nail 1 fracture, make the notes liquid passageway switch on again. The sealing nail 1 is scrapped after being detached from the injection molding part 3, so that a new sealing nail 1 is needed when the injection hole is sealed again next time.
Optionally, in order to facilitate the removal of the sealing nail 1, a removal groove 111 is formed in a portion of the sealing nail 1 exposed out of the liquid injection hole, and when the sealing nail 1 is removed, a removal member may be inserted into the removal groove 111 and then the removal member may be rotated. In this embodiment, the disassembling groove 111 is a cross structure, and when the sealing nail 1 is disassembled, a cross screwdriver can be inserted into the cross groove and then rotated. It will be appreciated that the shape of the dismounting groove 111 may be arranged according to the structure of the actual dismounting member. In addition, in the embodiment, the disassembling groove 111 is provided at the same time when the sealing nail 1 is produced, for example, the sealing nail 1 may be produced by using an injection molding process, and a protrusion corresponding to the structure of the disassembling groove 111 is provided on an injection mold. However, in other embodiments, the detachment groove 111 may be heat-fused to the seal pin 1 by a heat-fusing device when the seal pin 1 is heat-fused.
In this embodiment, before the sealing nail 1 is fixed in the liquid injection groove 310, a hot melting device needs to be used to perform hot melting treatment on the sealing nail 1 to soften the sealing nail 1, and then the softened sealing nail 1 is inserted into the liquid injection hole and the liquid injection groove 310, after the sealing nail 1 is cooled and hardened, the sealing nail 1 will be bonded with the top cover 2 abutted against the sealing nail and the injection molding piece 3, so as to seal the liquid injection hole. Optionally, the sealing nail 1 includes the connecting portion 12 and the sealing portion 11 that are connected, wherein the sealing portion 11 is located annotates the liquid downthehole, connecting portion 12 is located annotate the liquid groove 310, sealing nail 1 is when carrying out hot melt processing, the softening degree of its connecting portion 12 will be higher than sealing portion 11, in order to guarantee that connecting portion 12 can realize unsmooth cooperation with the connecting protrusion 312, even make the one end of connecting protrusion 312 embedding connecting portion 12, sealing portion 11 then only need carry out the edge softening, so that it realizes and annotates the bonding of liquid downthehole wall fixed, so that battery inside and external environment are isolated.
Alternatively, the seal nail 1 is inserted into the liquid filling groove 310 with a gap between the connecting portion 12 and the side wall of the liquid filling groove 310. That is, in this embodiment, the sealing nail 1 is only fixed with the connecting protrusion 312 by hot melting, and will not abut against the sidewall of the liquid injection groove 310, and under this arrangement, the disassembling difficulty of the sealing nail 1 can be reduced, and the sidewall of the liquid injection groove 310 is prevented from being damaged when the sealing nail 1 is disassembled. In the present embodiment, the sealing portion 11 is used to seal the liquid injection hole, and the connection portion 12 is used to seal the flow hole 311, which can play a role of double insurance, but when the connection portion 12 is used to seal the flow hole 311, and the seal nail 1 is not completely removed due to an operator's misoperation when the seal nail 1 is twisted, the sealing of the flow hole 311 by the connection portion 12 is not released, which may affect the battery to be injected again, or the sealing of the flow hole 311 by the connection portion 12 is not completely released, which may affect the injection efficiency of the battery.
Alternatively, the sealing nail 1 and the injection-molded part 3 are made of different plastic materials. In this embodiment, sealed nail 1 is made by the PP material, and injection molding 3 is made by the PE material, and both differences in the aspect of material toughness and rigidity for even sealed nail 1 has the softening of certain degree under the hot melt state, sealed nail 1 can not fuse into an organic whole with injection molding 3 yet, can be convenient for follow-up removing sealed nail 1 from injection molding 3 again. It will be appreciated that the PP material has a better rigidity and strength than the PE material, and therefore the sealing nail 1 is more suitably made of PP material than PE material. However, in other embodiments, other materials may be selected to manufacture the seal nail 1 and the injection-molded part 3, and the description is not further continued.
Further optionally, as shown in fig. 2, the coupling protrusion 312 is a conical structure. The setting of circular cone structure not only makes sealed nail 1 and the protruding 312 department of connection have unsmooth cooperation, and this unsmooth cooperation can strengthen sealed nail 1 and injection molding 3 along the adhesive force of sealed nail 1 length direction for sealed nail 1 is fixed in the tank bottom of notes liquid groove 310 more easily, and the side of circular cone structure does not have edges and corners moreover, consequently when rotating sealed nail 1, the resistance of circumference is less between sealed nail 1 and the protruding 312 two of connection, makes sealed nail 1 break away from the protruding 312 of connection more easily.
Preferably, the maximum height of the conical structure is a, and a ranges from 2mm to 5mm, so as to ensure the connection length of the connection protrusion 312 and the seal nail 1.
Still alternatively, as shown in fig. 2, the injection molded part 3 includes an injection molded part body and a liquid injection part 31, the liquid injection part 31 is protruded on a side of the injection molded part body away from the top cover 2, and the aforementioned liquid injection groove 310 is partially disposed on the liquid injection part 31. The liquid injection part 31 can meet the requirement of the liquid injection groove 310 on the premise of not increasing the thickness of the injection molded part body, and the production cost of the battery cannot be excessively increased. Preferably, the maximum depth of the liquid injection groove 310 is b, the value range of b is 5mm-10mm, the minimum thickness of the groove wall of the liquid injection groove 310 is c, and the value range of c is 1mm-3mm.
Preferably, a plurality of the circulation holes 311 are provided, and the plurality of the circulation holes 311 are spaced apart from the sidewall of the liquid injection tank 310. The arrangement of the plurality of circulation holes 311 can not only improve the liquid injection efficiency of the battery, but also can effectively improve the strength of the liquid injection part 31 by enabling the side walls among the plurality of circulation holes 311 to play a role of reinforcing ribs compared with the arrangement of one large circulation hole 311, thereby avoiding the strength reduction of the liquid injection part 31 caused by the arrangement of the liquid injection groove 310 and the circulation hole 311, and further avoiding the damage to the sealing nail 1 when being twisted.
Preferably, the sealing part 11 is provided to protrude from the connection part 12 in a direction perpendicular to the length direction of the sealing nail 1. In this embodiment, annotate the liquid hole and annotate the shape of liquid groove 310 and be circular, and the diameter of annotating the liquid hole is greater than the diameter of annotating liquid groove 310, when inserting sealed nail 1 and locating in annotating liquid groove 310, sealing portion 11 will butt on injection molding 3, so that sealed nail 1 quick cartridge targets in place, avoid sealed nail 1 to insert length too big, lead to its deformation to exceed predetermined degree, make connecting portion 12 exert the power on annotating liquid groove 310 cell wall too big, thereby damage annotate liquid groove 310, or make connecting portion 12 and the protruding 312's of connection degree reinforcing, increase sealed nail 1's the dismouting degree of difficulty.
It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.