CN219716933U - Battery with charged casing - Google Patents

Abstract

The utility model discloses a battery with charged shell, which comprises a shell, a first end plate, a second end plate, a pole group and an insulating limiting plate, wherein two ends of the shell are opened, the first end plate is buckled at one end of the shell, a pole column part and a first pole lug through hole are arranged on the first end plate, the second end plate is buckled at the other end of the shell, the pole group is arranged in the shell, two pole lugs are respectively arranged at two ends of the pole group, one pole lug is connected with the second end plate, the other pole lug is insulated from the first end plate and penetrates through the first pole lug through hole to be connected with a pole column part, and two ends of the insulating limiting plate are respectively connected with the first end plate and the second end plate and fixedly connected with the side wall of the pole group. The battery adopts a shell electrification mode, and overcurrent is carried out through the shell, so that the heat dissipation capacity of the battery is greatly improved, meanwhile, the insulation limiting plate is adopted to limit the pole group, the pole group can be limited from moving in the shell, and the probability of short circuit failure caused by contact of the pole group and the shell is reduced.

Description

Battery with charged casing

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery with a charged shell.

Background

The lithium ion battery system is widely applied to new energy automobiles and various energy storage systems, and the large-scale energy storage and long-endurance large-energy automobile energy storage system is a necessary direction under the large background of carbon peak and carbon neutralization. Correspondingly, replacing small-capacity batteries in parallel connection, and directly adopting large-capacity single batteries in series connection is a technical development trend of lithium ion batteries. Therefore, the number of connecting pieces can be reduced, the complexity of the battery management system can be reduced, the energy density can be improved, the cost can be reduced, the monitoring performance of the system can be improved, and the reliability and the safety of the battery system can be further improved. In recent years, the capacity of the single battery is gradually increased to 300Ah or more by tens of Ah. When the battery is charged and discharged, the high charging and discharging current leads to high internal temperature of the battery, and the generated heat is not easy to be discharged rapidly, so that the service life and the safety of the battery are affected. Meanwhile, most of the internal pole groups of square batteries on the market are not reliably fixed, and the positive pole piece and the negative pole piece are easily damaged due to the play of the pole groups in the transportation, installation and use processes, so that the safety problems of short circuit failure and the like are easily caused.

Disclosure of Invention

The utility model aims to provide a battery with a charged shell, which adopts the shell charging mode, and the overcurrent is carried out through a shell, so that the heat dissipation capacity of the battery is greatly improved, the service life and the use safety of the battery are improved, and meanwhile, the insulation limiting plate is adopted to limit the pole group, so that the pole group can be limited from moving in the shell, the risk of damage to the pole lugs is reduced, and the probability of short circuit failure caused by contact between the pole group and the shell is reduced.

In order to achieve the technical effects, the technical scheme of the utility model is as follows:

the utility model discloses a battery with charged shell, comprising: the two ends of the shell are opened; the first end plate is buckled at one end of the shell, and a pole column part and a first lug perforation are arranged on the first end plate; the second end plate is buckled at the other end of the shell; the pole group is arranged in the shell, two ends of the pole group are respectively provided with two pole lugs, one pole lug is connected with the second end plate, and the other pole lug is insulated from the first end plate and penetrates through the first pole lug through hole to be connected with the pole column piece; the two ends of the insulation limiting plate are respectively connected to the first end plate and the second end plate and are fixedly connected to the side walls of the pole groups.

In some embodiments, the first end plate is provided with a first slot, the second end plate is provided with a second slot, and two ends of the insulation limiting plate are respectively inserted into the first slot and the second slot.

In some embodiments, the second end plate is provided with a tab welding groove, a second tab perforation is arranged in the tab welding groove, the battery with the charged shell further comprises a bus plate, the bus plate is matched in the tab welding groove, and one tab of the tab group penetrates through the second tab perforation to be connected with the bus plate.

In some embodiments, the electrode groups are multiple, each electrode group is provided with a first side wall and a second side wall, the area of the first side wall is larger than that of the second side wall, and the insulating limiting plate is connected to the multiple second side walls; the battery with the charged shell further comprises a limiting piece, wherein the limiting piece is clamped between the two first side walls and/or between the pole group and the second end plate.

In some specific embodiments, the limiting member includes an integrally formed first limiting plate and a second limiting plate, the first limiting plate is sandwiched between the two first side walls, an insulating layer is disposed on the surface of the first limiting plate, and the second limiting plate is electrically connected with the tab portion and the second end plate of the pole group.

In some specific embodiments, the limiting member is an insulating plate, and the insulating plate is sandwiched between the two first side walls; the insulation limiting plate is provided with a first inserting groove matched with the first inserting protrusion; and/or: the insulation board towards the one end of second end plate is equipped with the second grafting arch, be equipped with on the second end plate with the protruding complex second grafting recess of second grafting.

In some specific embodiments, the limiting member is an insulating bracket, the insulating bracket is clamped between the second end plate and the pole group, a fixed column is arranged on the insulating bracket, and a fixed hole matched with the fixed column is arranged on the second end plate; the insulating support defines accommodation space towards the lateral wall of second end plate, accommodation space is used for holding the utmost point ear portion of utmost point group.

In some embodiments, the battery with the charged shell further comprises an insulating seat, wherein the insulating seat is clamped between the first end plate and the pole group, and a first avoidance hole for the pole lug part to pass through is formed in the insulating seat.

In some specific embodiments, the battery with the charged housing further comprises: a first insulating member interposed between the insulating base and the first end plate; a second insulator having an annular projection that mates with the first tab aperture, the second insulator terminating in a surface of the first end plate facing away from the pole set; the pole post seat is installed in the second insulating piece, the pole post seat has the confession the pole ear passes the second dodges the hole, just the pole post seat is used for installing the pole post piece, wherein, the pole ear of utmost point group pass first dodge the hole first insulating piece first pole ear perforation, the second insulating piece and the second dodges the hole after buckling and with the pole post piece welding.

In some embodiments, the post portion is an integral piece with the first end plate.

The battery with the charged shell has the beneficial effects that: because first end plate and second end plate all lock in the casing, after the tab portion is connected with the second end plate, first end plate and casing all electrified for the post portion on the first end plate is electrified also, thereby has realized the electrified function of shell, in actual working process, overflows through the casing, can improve battery heat dissipation ability by a wide margin, promotes the life and the safety in utilization of battery. In addition, as the two ends of the insulation limiting plate are respectively connected to the first end plate and the second end plate and are fixedly connected to the side wall of the pole group, the insulation limiting plate plays roles in fixing and limiting the pole group, the pole group is limited from moving in the shell, the damage risk of the pole lug is reduced, and the probability of short circuit failure caused by contact between the pole group and the shell is reduced

Additional aspects and advantages of the utility model 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 utility model.

Drawings

Fig. 1 is a schematic view of a battery with a charged casing according to a first embodiment of the present utility model;

Fig. 2 is a schematic view showing a partial structure of a battery with a charged case according to a first embodiment of the present utility model;

FIG. 3 is a partial view of the assembled structure of the first end plate according to the first embodiment of the present utility model;

FIG. 4 is a partial view showing the connection of the insulating limiting plate and the first end plate according to the first embodiment of the present utility model;

fig. 5 is another partial structural view of a battery with a charged case according to the first embodiment of the present utility model;

FIG. 6 is a partial view of the assembled structure of the second end plate according to the first embodiment of the present utility model;

FIG. 7 is a partial view showing the connection of an insulating limiting plate to a second end plate according to a first embodiment of the present utility model;

fig. 8 is a schematic diagram illustrating a connection structure between a tab portion and a second end plate according to a first embodiment of the present utility model;

FIG. 9 is a schematic diagram illustrating a connection structure between a pole set and a second end plate and a bus plate according to a first embodiment of the present utility model;

fig. 10 is a schematic structural diagram of a battery with a charged casing according to the second embodiment of the present utility model;

fig. 11 is a schematic view showing a partial structure of a battery with a charged case according to a second embodiment of the present utility model;

FIG. 12 is a partial view of a first end plate assembly according to a second embodiment of the present utility model;

FIG. 13 is a partial view showing the connection structure between the insulating limiting plate and the first end plate according to the second embodiment of the present utility model;

Fig. 14 is another partial schematic view of a battery with a charged casing according to the second embodiment of the present utility model;

FIG. 15 is a partial view of the assembled structure of the second end plate according to the second embodiment of the present utility model;

fig. 16 is a partial view of a connection structure between an insulating limiting plate and a second end plate according to a second embodiment of the present utility model;

FIG. 17 is a schematic view of a second embodiment of the present utility model, including a tab portion, a second end plate, and a limiting member;

fig. 18 is another partial schematic view of a battery with a charged casing according to the second embodiment of the present utility model;

fig. 19 is a schematic structural view of a pole set, a second end plate and a limiting member according to a second embodiment of the present utility model;

fig. 20 is a schematic view of a battery with a charged casing according to a third embodiment of the present utility model;

fig. 21 is a schematic view showing a partial structure of a battery with a charged case according to a third embodiment of the present utility model;

FIG. 22 is a partial view of the assembled structure of the first end plate of the third embodiment of the present utility model;

FIG. 23 is a partial view showing the connection of an insulating spacer plate to a first end plate according to a third embodiment of the present utility model;

fig. 24 is a partial view showing a connection structure between an insulating limiting plate and a second end plate according to a third embodiment of the present utility model;

FIG. 25 is another partial view of an insulating spacer plate and a second end plate according to a third embodiment of the present utility model;

FIG. 26 is a partial view showing the connection of an insulating spacer plate to a second end plate according to a third embodiment of the present utility model;

FIG. 27 is a schematic view of a third embodiment of the present utility model showing the structure of a tab portion, a second end plate and a stop member;

FIG. 28 is a schematic view of an insulation limiting plate, a second end plate and a limiting member according to a third embodiment of the present utility model;

fig. 29 is a schematic structural view of an insulating limiting plate according to a third embodiment of the present utility model;

FIG. 30 is a schematic view of a stop member according to a third embodiment of the present utility model;

FIG. 31 is a schematic view of a pole set, insulating limiting plate and limiting member according to a third embodiment of the present utility model;

fig. 32 is a schematic view of a battery with a charged casing according to a fourth embodiment of the present utility model;

fig. 33 is a partial schematic structural view of a battery with a charged case according to a fourth embodiment of the present utility model;

FIG. 34 is a partial view of the assembled structure of the first end plate of the fourth embodiment of the present utility model;

FIG. 35 is a partial view showing the connection of an insulating spacer plate to a first end plate according to a fourth embodiment of the present utility model;

FIG. 36 is a schematic view of a fourth embodiment of the present utility model showing a tab portion, a second end plate and a stop member;

FIG. 37 is a partial view showing the connection structure between the insulating limiting plate and the second end plate according to the fourth embodiment of the present utility model;

Fig. 38 is a schematic structural view of a second end plate according to a fourth embodiment of the present utility model;

FIG. 39 is another schematic view of a tab portion, a second end plate and a stop member according to a fourth embodiment of the utility model;

FIG. 40 is a schematic view of a fourth embodiment of the present utility model showing a tab portion, a second end plate and a stop member;

fig. 41 is a schematic structural view of a stopper according to a fourth embodiment of the present utility model.

Reference numerals:

1. a housing; 2. a first end plate; 21. a pole portion; 22. punching a first tab; 23. a first slot; 24. an explosion-proof valve; 25. a liquid injection hole; 3. a second end plate; 31. a second slot; 32. a tab weld groove; 33. a second lug is perforated; 34. the second inserting groove; 35. a fixing hole; 4. a pole group; 41. a tab portion; 42. a first sidewall; 43. a second sidewall; 5. a pole piece; 6. an insulating limiting plate; 61. a first insertion groove; 62. a first weeping hole; 7. a bus plate; 8. a limiting piece; 81. a first limiting plate; 82. a second limiting plate; 83. a first insertion projection; 84. a second insertion projection; 85. fixing the column; 86. an accommodation space; 87. a second weeping hole; 9. an insulating base; 91. a first avoidance hole; 92. a third weeping hole; 10. a first insulating member; 20. a second insulating member; 30. a pole base; 301. a second avoidance hole; 40. an adhesive tape; 50. and (5) a rivet.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The specific structure of the battery with a charged case according to the embodiment of the present utility model is described below with reference to fig. 1 to 41.

The utility model discloses a battery with a charged shell (hereinafter referred to as a battery), as shown in fig. 1, 10, 20 and 32, the battery comprises a shell 1, a first end plate 2, a second end plate 3, a pole group 4 and an insulation limiting plate 6, wherein two ends of the shell 1 are opened, the first end plate 2 is buckled at one end of the shell 1, the first end plate 2 is provided with a pole column part 21 and a first pole lug perforation 22, the second end plate 3 is buckled at the other end of the shell 1, the pole group 4 is arranged in the shell 1, two pole lugs 41 are respectively arranged at two ends of the pole group 4, one pole lug 41 is connected with the second end plate 3, the other pole lug 41 is insulated with the first end plate 2 and is connected with the pole column part 5 through the first pole lug perforation 22, and two ends of the insulation limiting plate 6 are respectively connected with the first end plate 2 and the second end plate 3 and are fixedly connected with the pole group 4 on the side wall of the pole group 4. It can be understood that in the present embodiment, two tab portions 41 are respectively disposed at two ends of the pole group 4, wherein one tab portion 41 is directly connected with the second end plate 3, and after the first end plate 2 and the second end plate 3 are both buckled to the housing 1, the first end plate 2 and the housing 1 are both charged after the tab portions 41 are connected with the second end plate 3, so that the pole portion 21 on the first end plate 2 is also charged, so that the pole portion 21 can be used as one lead-out pole of the battery. At the same time, the other tab portion 41 is insulated from the first terminal plate 2 and connected to the pole piece 5 through the first tab through hole 22, and the pole piece 5 can serve as the other outgoing pole of the battery. Therefore, the function of electrification of the shell is realized, in the actual working process, overcurrent is carried out through the shell 1, the heat dissipation capacity of the battery can be greatly improved, and the service life and the use safety of the battery are improved. In addition, because the two ends of the insulation limiting plate 6 are respectively connected to the first end plate 2 and the second end plate 3, and are fixedly connected to the side walls of the pole group 4, the insulation limiting plate 6 plays a role in fixing and limiting the pole group 4, the pole group 4 is limited from moving in the shell 1, the damage risk of the pole lug part 41 is reduced, and the probability of short circuit failure caused by contact between the pole group 4 and the shell 1 is reduced. In the embodiment of the present utility model, the tab portion 41 connected to the second end plate 3 may be a positive tab or a negative tab. The positive electrode lug is an aluminum electrode lug, and the negative electrode lug is a copper electrode lug. In the actual design process, if the tab portion 41 connected to the second end plate 3 is a positive tab, the first end plate 2, the second end plate 3 and the case 1 are all aluminum cases and are positively charged. If the tab portion 41 connected to the second end plate 3 is a negative tab, the first end plate 2, the second end plate 3, and the case 1 are steel shells and negatively charged. The electrical property of the housing 1 can be adjusted according to actual needs.

In some embodiments, as shown in fig. 4, 7, 13, 23, 26, 35 and 37, the first end plate 2 is provided with a first slot 23, the second end plate 3 is provided with a second slot 31, and two ends of the insulating limiting plate 6 are respectively inserted into the first slot 23 and the second slot 31. It will be appreciated that, in accordance with the foregoing, the function of the insulating limiting plate 6 is to limit the play of the pole group 4 in the housing 1, that is to say, the better the mounting stability of the insulating limiting plate 6, the better the limiting action on the pole group 4. In this embodiment, the two ends of the insulation limiting plate 6 are respectively inserted into the first slot 23 of the first end plate 2 and the second slot 31 of the second end plate 3, so that on one hand, the assembly of the insulation limiting plate 6 is facilitated, on the other hand, the two ends of the insulation limiting plate 6 are only required to be respectively inserted into the first slot 23 and the second slot 31 in the installation process, and on the other hand, the connection stability of the insulation limiting plate 6 in the shell 1 is improved, thereby ensuring the limiting effect of the insulation limiting plate 6 on the pole group 4.

In some embodiments, as shown in fig. 6, 8 and 9, the second end plate 3 is provided with a tab welding groove 32, a second tab through hole 33 is provided in the tab welding groove 32, the battery further includes a bus plate 7, the bus plate 7 is matched in the tab welding groove 32, and one tab 41 of the electrode group 4 passes through the second tab through hole 33 and is connected with the bus plate 7. It will be appreciated that, in the actual assembly process, after the pole group 4 is installed into the housing 1, the tab portion 41 is bent and pressed into the tab welding groove 32 after passing through the second tab through hole 33, then the second end plate 3 is welded with the housing 1, and the bus plate 7 is welded in the tab welding groove 32, so that the bus plate 7 and the tab portion 41 are conducted with the second end plate 3, thereby realizing electrification of the second end plate 3, the housing 1 and the first end plate 2. Therefore, in the actual assembly process, the welding process is arranged on the outer side of the second end plate 3, the operation is very convenient, and the assembly of the battery is convenient.

In some embodiments, as shown in fig. 5, the pole group 4 is connected to the insulating limiting plate 6 by the adhesive tape 40, so that the connection stability of the pole group 4 and the insulating limiting plate 6 can be improved, and the assembly of the pole group 4 and the insulating limiting plate 6 can be simplified. Of course, in other embodiments of the utility model, the pole group 4 may also be attached to the insulating limiting plate 6 by other means, such as adhesive bonding.

In some embodiments, the pole groups 4 are multiple, each pole group 4 has a first side wall 42 and a second side wall 43, the first side wall 42 is larger in area than the second side wall 43, and the insulating limiting plate 6 is connected to the multiple second side walls 43; as shown in fig. 11, 21 and 40, the battery further includes a stopper 8, and the stopper 8 is sandwiched between two first side walls 42 and/or between the pole group 4 and the second end plate 3. It can be appreciated that the added limiting member 8 is clamped between the first side walls 42 of the two pole groups 4, so that the two pole groups 4 are arranged in an insulating manner at intervals, and the phenomenon that the two pole groups 4 are short-circuited is avoided. The added limiting piece 8 can better limit the pole group 4, so that the play of the pole group 4 in the shell 1 is limited to the greatest extent, the damage risk of the pole lug part 41 is reduced, and the probability of short circuit failure caused by the contact of the pole group 4 and the shell 1 is reduced.

In some specific embodiments, as shown in fig. 14-15 and fig. 16-19, the limiting member 8 includes a first limiting plate 81 and a second limiting plate 82 that are integrally formed, the first limiting plate 81 is sandwiched between two first side walls 42, an insulating layer is disposed on a surface of the first limiting plate 81, and the second limiting plate 82 is electrically connected to the tab portion 41 of the pole group 4 and the second end plate 3. It can be appreciated that the first limiting plate 81 is sandwiched between the first side walls 42 of the two pole groups 4, and the insulating layer is disposed on the surface of the first limiting plate 81, so that the two pole groups 4 are arranged in an insulating manner at intervals, and the phenomenon that the two pole groups 4 are shorted is avoided. In addition, the second limiting plate 82 is electrically connected with the lug part 41 of the pole group 4 and the second end plate 3, after the second limiting plate 82 is connected with the second end plate 3 in the actual installation process, the first limiting plate 81 is inserted between the two pole groups 4, then the lug part 41 is welded on the second limiting plate 82, after the welding is finished, the whole pole group 4 is pushed into the shell 1, the second end plate 3 is welded on the shell 1 to realize the assembly, and therefore, the connection of the lug part 41 and the second end plate 3 does not need to be realized by means of the bus plate 7, the connection structure is simplified, and the manufacturing is facilitated. Optionally, the second limiting plate 82 is riveted with the second end plate 3 by rivets 50. Thereby, the connection of the second limiting plate 82 with the second end plate 3 is facilitated. Of course, in other embodiments of the present utility model, the second limiting plate 82 may be connected to the second end plate 3 by other manners such as screw connection, snap connection or welding, and is not limited to the riveting of the present embodiment.

In some specific embodiments, as shown in fig. 24-25 and 27, the limiting member 8 is an insulating plate, and the insulating plate is sandwiched between two first side walls 42; as shown in fig. 28-29 and fig. 30-31, first inserting protrusions 83 are arranged on two opposite sides of the insulating plate, and first inserting grooves 61 matched with the first inserting protrusions 83 are arranged on the insulating limiting plate 6; and/or: as shown in fig. 28, the insulating plate is provided with a second insertion protrusion 84 at one end facing the second end plate 3, and the second end plate 3 is provided with a second insertion groove 34 that mates with the second insertion protrusion 84. The insulating plate is clamped between the first side walls 42 of the two pole groups 4, so that the two pole groups 4 are arranged in an insulating mode at intervals, and the phenomenon that the two pole groups 4 are short-circuited is avoided. It should be noted that, in some embodiments, the two opposite sides of the insulating plate are provided with first inserting protrusions 83, and the insulating limiting plate 6 is provided with first inserting grooves 61 matched with the first inserting protrusions 83; in some embodiments, the end of the insulating plate facing the second end plate 3 is provided with a second plugging protrusion 84, and the second end plate 3 is provided with a second plugging groove 34 matched with the second plugging protrusion 84; in some embodiments, the two opposite sides of the insulating plate are provided with first plugging protrusions 83, the insulating limiting plate 6 is provided with first plugging grooves 61 matched with the first plugging protrusions 83, one end of the insulating plate facing the second end plate 3 is provided with second plugging protrusions 84, and the second end plate 3 is provided with second plugging grooves 34 matched with the second plugging protrusions 84. The positions and the distribution of the first inserting projection 83, the first inserting groove 61, the second inserting projection 84, and the second inserting groove 34 may be selected according to actual needs. It will be appreciated that in this embodiment, the insulating plate may be inserted onto the insulating limiting plate 6 through the first insertion protrusion 83, and may also be inserted onto the second end plate 3 through the second insertion protrusion 84, so that on one hand, the connection members such as the screws and rivets 50 are omitted, and on the other hand, the connection between the insulating plate and the second end plate 3 and the insulating limiting plate 6 is facilitated, and on the other hand, the installation stability of the insulating plate is improved, and the limitation of the pole group 4 is ensured.

In some specific embodiments, as shown in fig. 36, 38, 39 and 41, the limiting member 8 is an insulating bracket, the insulating bracket is sandwiched between the second end plate 3 and the pole group 4, a fixing column 85 is arranged on the insulating bracket, and a fixing hole 35 matched with the fixing column 85 is arranged on the second end plate 3; the side wall of the insulating holder facing the second end plate 3 defines an accommodation space 86, the accommodation space 86 being for accommodating the tab portion 41 of the pole group 4. It can be appreciated that the insulating support is clamped between the second end plate 3 and the pole group 4, so that the lower surface of the pole group 4 and the second end plate 3 are arranged in an insulating manner, and the phenomenon of short circuit is avoided. The insulating support is connected together through the structure of fixed column 85 and fixed orifices 35, has omitted connecting pieces such as screw, rivet 50 like this on the one hand, has made things convenient for the insulating support to be connected with second end plate 3, has promoted the installation stability of insulating support on the other hand, has ensured the restriction to polar group 4. In addition, since the insulating bracket defines the accommodating space 86 toward the side wall of the second end plate 3, the accommodating space 86 is used for accommodating the tab portion 41 of the pole group 4, and in the actual installation process, after the tab portion 41 is welded to the second end plate 3, the insulating bracket is connected and fixed with the second end plate 3 by inserting the fixing post 85 into the fixing hole 35. Thereby, the connection of the second end plate 3 to the tab portion 41 is very facilitated.

In some embodiments, as shown in fig. 2, the battery further includes an insulating base 9, where the insulating base 9 is sandwiched between the first terminal plate 2 and the pole group 4, and a first avoidance hole 91 is provided on the insulating base 9 for passing the tab portion 41. The added insulating seat 9 can ensure that the upper surfaces of the first end plate 2 and the pole group 4 are arranged in an insulating way, so that the phenomenon that the upper surfaces of the second end plate 3 and the pole group 4 are short-circuited is avoided.

In some specific embodiments, as shown in fig. 2 and 33, the battery further includes a first insulating member 10, a second insulating member 20, and a post base 30, where the first insulating member 10 is sandwiched between the insulating base 9 and the first end plate 2, the second insulating member 20 has an annular protrusion that fits into the first tab through hole 22, the second insulating member 20 is stopped against a surface of the first end plate 2 facing away from the pole group 4, the post base 30 is mounted on the second insulating member 20, the post base 30 has a second through hole 301 through which the tab portion 41 passes, and the post base 30 is used for mounting the post 5, where the tab portion 41 of the pole group 4 passes through the first through hole 91, the first insulating member 10, the first tab through hole 22, the second insulating member 20, and the second through hole 301, and is bent and welded with the post 5. In the actual manufacturing process, the first insulating member 10, the second insulating member 20 and the pole post base 30 can be integrated with the first end plate 2 by adopting an injection molding process, in the assembling process, the pole lug 41 of the pole group 4 passes through the first avoiding hole 91, the first insulating member 10, the first pole lug through hole 22, the second insulating member 20 and the second avoiding hole 301, is bent and pressed, and then the pole post 5 is welded, so that the operation is very convenient, and the pole post is welded on the outer side of the shell 1, so that the welding firmness can be improved.

In some embodiments, as shown in fig. 3, 12 and 34, the pole portion 21 is an integral piece with the first end plate 2. It will be appreciated that the pole portion 21 is integrally formed with the first end plate 2, which reduces assembly steps and production costs. In the embodiment of the present utility model, the pole portion 21 may be formed on the first end plate 2 by punching, or may be manufactured by other integral molding processes according to actual needs, and is not limited to the punching of the present embodiment.

Embodiment one:

the structure of a battery with a charged case according to the first embodiment of the present utility model will be described below with reference to fig. 1 to 9.

As shown in fig. 1 to 9, the battery of the present embodiment includes a case 1, a first end plate 2, a second end plate 3, a pole group 4, an insulating stopper plate 6, a first insulating member 10, a second insulating member 20, a pole piece holder 30, a pole piece 5, and a bus plate 7. The two ends of the shell 1 are opened, the first end plate 2 is buckled at one end of the shell 1, and the first end plate 2 is provided with a pole column part 21, a first pole lug perforation 22, a first slot 23, an explosion-proof valve 24 and a liquid injection hole 25. The second end plate 3 is fastened to the other end of the housing 1, a second slot 31 and a tab welding groove 32 are provided on the second end plate 3, and a second tab through hole 33 is provided in the tab welding groove 32. The pole group 4 is arranged in the shell 1, and two pole lugs 41 are respectively arranged at two ends of the pole group 4. One of the tab portions 41 of the pole group 4 passes through the second tab perforation 33 to be connected with the busbar 7, the first insulating member 10 is clamped between the insulating seat 9 and the first end plate 2, the second insulating member 20 is provided with an annular bulge matched with the first tab perforation 22, the second insulating member 20 is stopped against the surface of the first end plate 2, which is away from the pole group 4, the pole seat 30 is mounted on the second insulating member 20, the pole seat 30 is provided with a second avoidance hole 301 for the tab portion 41 to pass through, the pole seat 30 is used for mounting the pole member 5, and the insulating seat 9 is provided with a third liquid leakage hole 92. The other tab portion 41 of the pole group 4 is bent and welded to the pole piece 5 after passing through the first relief hole 91, the first insulating member 10, the first tab through hole 22, the second insulating member 20, and the second relief hole 301. The two ends of the insulation limiting plate 6 are respectively inserted into the first slot 23 and the second slot 31, and are connected with the pole group 4 through the adhesive tape 40. The insulating limiting plate 6 is also provided with a first liquid leakage hole 62.

The assembly process of the battery with the charged case of the present embodiment is as follows: the first step: the pole group 4 is manufactured by adopting a lamination mode commonly adopted in the industry, and two pole lugs 41 are positioned at two sides of the lamination pole group 4; a second step; the two pole groups 4 are cored, one pole lug 41 penetrates into the first avoiding hole 91, the first insulating piece 10, the first pole lug perforation 22, the second insulating piece 20 and the second avoiding hole 301, and then is bent and welded with the pole post piece 5; and a third step of: after the insulating limiting plate 6 is inserted into the first slot 23 on the first end plate 2, the insulating limiting plate 6 and the pole group 4 are fixed by using the adhesive tape 40; fourth step: pushing the shell 1 into the assembly manufactured by the previous steps; fifth step: the other tab 41 passes through the second tab perforation 33 and is bent and pressed into the tab welding groove 32, then the second end plate 3 and the shell 1 are welded together, and the bus plate 7 is welded in the tab welding groove 32; sixth step: and the battery is subjected to drying, liquid injection, formation, sealing and other procedures according to the conventional method in the industry, so that the battery is manufactured.

The advantages of the battery with the charged housing of this embodiment are: the design can improve the heat dissipation performance of the battery, and the pole column part 21 on the first end plate 2 is manufactured in a stamping mode, so that the assembly process can be reduced, and the production cost can be reduced. The inside two insulating limiting plates 6 that are equipped with of this design battery is connected through sticky tape 40 with utmost point group 4, can realize restricting the degree of freedom of utmost point group 4, prevents that battery displacement from leading to utmost point group 4 to take place deformation, and this insulating limiting plate 6 can also prevent that utmost point group 4 from causing the short circuit with casing 1 contact.

Embodiment two:

the structure of a battery with a charged case according to the second embodiment of the present utility model will be described below with reference to fig. 10 to 19.

As shown in fig. 10 to 19, the battery of the present embodiment includes a case 1, a first end plate 2, a second end plate 3, a pole group 4, an insulating stopper 6, a first insulating member 10, a second insulating member 20, a pole piece holder 30, a pole piece 5, and a stopper 8. The two ends of the shell 1 are opened, the first end plate 2 is buckled at one end of the shell 1, and the first end plate 2 is provided with a pole column part 21, a first pole lug perforation 22, a first slot 23, an explosion-proof valve 24 and a liquid injection hole 25. The second end plate 3 is fastened to the other end of the housing 1, and a second slot 31 is formed in the second end plate 3. The number of the pole groups 4 is two, each pole group 4 is provided with a first side wall 42 and a second side wall 43, the area of the first side wall 42 is larger than that of the second side wall 43, and two pole lugs 41 are respectively arranged at two ends of the pole group 4. The first insulator 10 is clamped between the insulator seat 9 and the first end plate 2, the second insulator 20 is provided with an annular bulge matched with the first lug through hole 22, the second insulator 20 is stopped against the surface of the first end plate 2, which is away from the pole group 4, the pole seat 30 is mounted on the second insulator 20, the pole seat 30 is provided with a second avoidance hole 301 for the pole lug 41 to pass through, the pole seat 30 is used for mounting the pole piece 5, and the insulator seat 9 is provided with a third liquid leakage hole 92. One tab portion 41 of the pole group 4 is bent and welded to the pole piece 5 after passing through the first relief hole 91, the first insulating member 10, the first tab through hole 22, the second insulating member 20, and the second relief hole 301. The two ends of the insulation limiting plate 6 are respectively inserted into the first slot 23 and the second slot 31, and are connected with the second side wall 43 of the pole group 4 through the adhesive tape 40. The insulating limiting plate 6 is also provided with a first liquid leakage hole 62. The limiting piece 8 comprises a first limiting plate 81 and a second limiting plate 82 which are integrally formed, the first limiting plate 81 is clamped between the two first side walls 42, an insulating layer is arranged on the surface of the first limiting plate 81, the other lug part 41 of the pole group 4 is welded on the second limiting plate 82, and the second limiting plate 82 and the second end plate 3 are riveted through rivets 50.

The assembly process of the battery with the charged case of the present embodiment is as follows: the first step: the pole group 4 is manufactured in a lamination mode commonly adopted in the industry, and two pole lug parts 41 are positioned on two sides of the pole group 4; and a second step of: the second limiting plate 82 of the limiting piece 8 is fixedly connected with the second end plate 3 in a riveting mode, one of the lug parts 41 is welded to the second limiting plate 82, core combination fixing is carried out, then the lower end of the insulating limiting plate 6 is inserted into the second slot 31 of the second end plate 3, and the insulating limiting plate 6 and the pole group 4 are fixed by using the adhesive tape 40; and a third step of: pushing the shell 1 into the assembly manufactured by the previous steps; fourth step: inserting the upper end of the insulating limiting plate 6 into the first slot 23 of the first end plate 2; fifth step: penetrating the other lug part 41 of the pole group 4 into the first avoidance hole 91, the first insulating piece 10, the first lug penetrating hole 22, the second insulating piece 20 and the second avoidance hole 301, bending and welding with the pole piece 5; sixth step: welding the first end plate 2 and the second end plate 3 to the housing 1; seventh step: and the battery is subjected to drying, liquid injection, formation, sealing and other procedures according to the conventional method in the industry, so that the battery is manufactured.

The advantages of the battery with the charged housing of this embodiment are: the design can improve the heat dissipation performance of the battery, and the pole column part 21 on the first end plate 2 is manufactured in a stamping mode, so that the assembly process can be reduced, and the production cost can be reduced. This design adopts "sandwich" structure, is fixed through sticky tape 40 after pressing from both sides the first limiting plate 81 both sides at locating part 8 with two utmost point group 4, is connected with second end plate 3 through the mode of riveting with the second limiting plate 82 of locating part 8 again, presss from both sides two insulating limiting plates 6 at utmost point group 4 both sides and carries out sticky tape 40 binding connection, can realize restricting the degree of freedom of utmost point group 4, prevents the battery displacement. The two side limiting plates are made of insulating materials, and the insulating limiting plates 6 can also prevent the short circuit caused by the contact between the pole group 4 and the shell 1.

Embodiment III:

the structure of a battery with a charged case according to the third embodiment of the present utility model will be described below with reference to fig. 20 to 31.

As shown in fig. 20 to 31, the battery of the present embodiment includes a case 1, a first end plate 2, a second end plate 3, a pole group 4, an insulating stopper 6, a first insulating member 10, a second insulating member 20, a pole piece holder 30, a pole piece 5, and a stopper 8. The two ends of the shell 1 are opened, the first end plate 2 is buckled at one end of the shell 1, and the first end plate 2 is provided with a pole column part 21, a first pole lug perforation 22, a first slot 23, an explosion-proof valve 24 and a liquid injection hole 25. The second end plate 3 is fastened to the other end of the housing 1, and a second slot 31 is formed in the second end plate 3. The number of the pole groups 4 is two, each pole group 4 is provided with a first side wall 42 and a second side wall 43, the area of the first side wall 42 is larger than that of the second side wall 43, and two pole lugs 41 are respectively arranged at two ends of the pole group 4. The first insulator 10 is clamped between the insulator seat 9 and the first end plate 2, the second insulator 20 is provided with an annular bulge matched with the first lug through hole 22, the second insulator 20 is stopped against the surface of the first end plate 2, which is away from the pole group 4, the pole seat 30 is mounted on the second insulator 20, the pole seat 30 is provided with a second avoidance hole 301 for the pole lug 41 to pass through, the pole seat 30 is used for mounting the pole piece 5, and the insulator seat 9 is provided with a third liquid leakage hole 92. One tab portion 41 of the pole group 4 is bent and welded to the pole piece 5 after passing through the first relief hole 91, the first insulating member 10, the first tab through hole 22, the second insulating member 20, and the second relief hole 301. The two ends of the insulation limiting plate 6 are respectively inserted into the first slot 23 and the second slot 31, and are connected with the second side wall 43 of the pole group 4 through the adhesive tape 40. The insulating limiting plate 6 is also provided with a first liquid leakage hole 62. The limiting piece 8 is an insulating plate, and the insulating plate is clamped between the two first side walls 42; the two sides of the insulating plate, which are oppositely arranged, are provided with first inserting protrusions 83, and the insulating limiting plate 6 is provided with first inserting grooves 61 matched with the first inserting protrusions 83. The insulating plate is provided with a second inserting protrusion 84 at one end facing the second end plate 3, and the second end plate 3 is provided with a second inserting groove 34 matched with the second inserting protrusion 84.

The assembly process of the battery with the charged case of the present embodiment is as follows: the first step: the pole group 4 is manufactured by adopting a lamination mode commonly adopted in the industry, and two pole lugs 41 are positioned at two sides of the lamination pole group 4; and a second step of: one of the pole lugs 41 is welded to the second end plate 3, the second inserting protrusion 84 of the limiting piece 8 is inserted into the second inserting groove 34 of the second end plate 3, the pole group 4 is clamped on two sides of the limiting piece 8 and then is fixed in a core-closing manner through the adhesive tape 40, the insulating limiting plate 6 is inserted into the second inserting groove 31 of the second end plate 3, and then the insulating limiting plate 6 and the pole group 4 are fixed through the adhesive tape 40; and a third step of: pushing the shell 1 into the assembly manufactured by the previous steps; fourth step: inserting the upper end of the insulating limiting plate 6 into the first slot 23 of the first end plate 2; fifth step: penetrating the other lug part 41 of the pole group 4 into the first avoidance hole 91, the first insulating piece 10, the first lug penetrating hole 22, the second insulating piece 20 and the second avoidance hole 301, bending and welding with the pole piece 5;

sixth step: welding the first end plate 2 and the second end plate 3 to the housing 1; seventh step: and the battery is subjected to drying, liquid injection, formation, sealing and other procedures according to the conventional method in the industry, so that the battery is manufactured.

The advantages of the battery with the charged housing of this embodiment are: the design can improve the heat dissipation performance of the battery, and the pole column part 21 on the first end plate 2 is manufactured in a stamping mode, so that the assembly process can be reduced, and the production cost can be reduced. The design adopts a sandwich structure, two pole groups 4 are clamped on two sides of a limiting piece 8 and then fixed through adhesive tapes 40, a second inserting protrusion 84 on the limiting piece 8 is inserted into a second inserting groove 34 of a second end plate 3, two insulating limiting plates 6 are clamped on two sides of the pole groups 4 to be connected in a binding mode through the adhesive tapes 40, the freedom degree of limiting the pole groups 4 can be achieved, and battery displacement is prevented. The two side limiting plates are made of insulating materials, and the insulating limiting plates 6 can also prevent the short circuit caused by the contact between the pole group 4 and the shell 1.

Embodiment four:

the structure of a battery with a charged case according to the fourth embodiment of the present utility model will be described below with reference to fig. 32 to 41.

As shown in fig. 32 to 41, the battery of the present embodiment includes a case 1, a first end plate 2, a second end plate 3, a pole group 4, an insulating stopper 6, a first insulating member 10, a second insulating member 20, a pole piece holder 30, a pole piece 5, and a stopper 8. The two ends of the shell 1 are opened, the first end plate 2 is buckled at one end of the shell 1, and the first end plate 2 is provided with a pole column part 21, a first pole lug perforation 22, a first slot 23, an explosion-proof valve 24 and a liquid injection hole 25. The second end plate 3 is fastened to the other end of the housing 1, and a second slot 31 is formed in the second end plate 3. The number of the pole groups 4 is two, each pole group 4 is provided with a first side wall 42 and a second side wall 43, the area of the first side wall 42 is larger than that of the second side wall 43, and two pole lugs 41 are respectively arranged at two ends of the pole group 4. The first insulator 10 is clamped between the insulator seat 9 and the first end plate 2, the second insulator 20 is provided with an annular bulge matched with the first lug through hole 22, the second insulator 20 is stopped against the surface of the first end plate 2, which is away from the pole group 4, the pole seat 30 is mounted on the second insulator 20, the pole seat 30 is provided with a second avoidance hole 301 for the pole lug 41 to pass through, the pole seat 30 is used for mounting the pole piece 5, and the insulator seat 9 is provided with a third liquid leakage hole 92. One tab portion 41 of the pole group 4 is bent and welded to the pole piece 5 after passing through the first relief hole 91, the first insulating member 10, the first tab through hole 22, the second insulating member 20, and the second relief hole 301. The two ends of the insulation limiting plate 6 are respectively inserted into the first slot 23 and the second slot 31, and are connected with the second side wall 43 of the pole group 4 through the adhesive tape 40. The insulating limiting plate 6 is also provided with a first liquid leakage hole 62. The limiting piece 8 is an insulating bracket, the insulating bracket is clamped between the second end plate 3 and the pole group 4, a fixed column 85 is arranged on the insulating bracket, and a fixed hole 35 matched with the fixed column 85 is arranged on the second end plate 3; the side wall of the insulating holder facing the second end plate 3 defines an accommodation space 86, the accommodation space 86 being for accommodating the tab portion 41 of the pole group 4. The insulating support is provided with a second weeping hole 87.

The assembly process of the battery with the charged case of the present embodiment is as follows: the first step: the pole group 4 is manufactured by adopting a lamination mode commonly adopted in the industry, and two pole lugs 41 are positioned at two sides of the lamination pole group 4; and a second step of: one of the tab parts 41 is welded to the second end plate 3, the fixing column 85 of the limiting piece 8 is inserted into the fixing hole 35 of the second end plate 3, the insulating limiting plate 6 is inserted into the second slot 31 of the second end plate 3, and then the insulating limiting plate 6 and the pole group 4 are fixed by using the adhesive tape 40; and a third step of: pushing the shell 1 into the assembly manufactured by the previous steps; fourth step: inserting the upper end of the insulating limiting plate 6 into the first slot 23 of the first end plate 2; fifth step: penetrating the other lug part 41 of the pole group 4 into the first avoidance hole 91, the first insulating piece 10, the first lug penetrating hole 22, the second insulating piece 20 and the second avoidance hole 301, bending and welding with the pole piece 5; sixth step: welding the first end plate 2 and the second end plate 3 to the housing 1; seventh step: and the battery is subjected to the procedures of drying, liquid injection, formation, sealing and the like according to the conventional method in the industry, so that the battery is manufactured.

The advantages of the battery with the charged housing of this embodiment are: the design can improve the heat dissipation performance of the battery, and the pole column part 21 on the first end plate 2 is manufactured in a stamping mode, so that the assembly process can be reduced, and the production cost can be reduced. This design adopts four sides limit structure, welds utmost point ear 41 on second end plate 3 earlier, inserts the fixed column 85 on the locating part 8 in the fixed orifices 35 of second end plate 3 again, presss from both sides two insulating limiting plates 6 in pole group 4 both sides and carries out sticky tape 40 binding connection, and at last insulating holder 9 supports the fixed to pole group 4 upper surface when installing first end plate 2, and insulating holder 9 and locating part 8 are profile modeling mechanism, prevent the battery displacement. The two side limiting plates are made of insulating materials, and the insulating limiting plates 6 can also prevent the short circuit caused by the contact between the pole group 4 and the shell 1.

In addition, in the first to fourth embodiments, the case 1 may be positively or negatively charged, specifically, the tab portion 41 connected to the second end plate 3 is a positive tab, and then the first end plate 2, the second end plate 3 and the case 1 are all aluminum cases and positively charged. If the tab portion 41 connected to the second end plate 3 is a negative tab, the first end plate 2, the second end plate 3, and the case 1 are steel shells and negatively charged. The electrical properties of the housing 1 in the first to fourth embodiments may be selected according to the above description according to actual needs.

In the description of the present specification, reference to the term "some embodiments," "other embodiments," etc., means 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims (10)

1. A battery with a charged housing, comprising:

the shell (1), both ends of the said shell (1) open and set up;

the first end plate (2), the first end plate (2) is buckled at one end of the shell (1), and a pole part (21) and a first pole lug perforation (22) are arranged on the first end plate (2);

the second end plate (3) is buckled at the other end of the shell (1);

the pole group (4) is arranged in the shell (1), two ends of the pole group (4) are respectively provided with two pole lugs (41), one pole lug (41) is connected with the second end plate (3), and the other pole lug (41) is insulated with the first end plate (2) and penetrates through the first pole lug perforation (22) to be connected with the pole post piece (5);

the insulation limiting plate (6), the both ends of insulation limiting plate (6) are connected respectively first end plate (2) with on second end plate (3), and fixed connection is in on the lateral wall of utmost point group (4).

2. The battery with charged shell according to claim 1, characterized in that the first end plate (2) is provided with a first slot (23), the second end plate (3) is provided with a second slot (31), and two ends of the insulating limiting plate (6) are respectively inserted into the first slot (23) and the second slot (31).

3. The battery with charged shell according to claim 1, characterized in that a tab welding groove (32) is arranged on the second end plate (3), a second tab perforation (33) is arranged in the tab welding groove (32), the battery with charged shell further comprises a bus plate (7), the bus plate (7) is matched in the tab welding groove (32), and one of the tab parts (41) of the pole group (4) is connected with the bus plate (7) through the second tab perforation (33).

4. A battery with charged housing according to any of claims 1-3, characterized in that said pole groups (4) are plural, each of said pole groups (4) having a first side wall (42) and a second side wall (43), said first side wall (42) being larger in area than said second side wall (43), said insulating limiting plate (6) being attached to a plurality of said second side walls (43);

the battery with the charged shell further comprises a limiting piece (8), wherein the limiting piece (8) is clamped between the two first side walls (42) and/or between the pole group (4) and the second end plate (3).

5. The battery with charged shell according to claim 4, characterized in that said limiting member (8) comprises a first limiting plate (81) and a second limiting plate (82) which are integrally formed, said first limiting plate (81) is sandwiched between said two first side walls (42), an insulating layer is provided on the surface of said first limiting plate (81), and said second limiting plate (82) is electrically connected with said tab portion (41) and said second end plate (3) of said pole group (4).

6. The battery with charged housing according to claim 4, characterized in that said stopper (8) is an insulating plate, said insulating plate being sandwiched between two of said first side walls (42);

the two sides of the insulating plate, which are oppositely arranged, are provided with first inserting protrusions (83), and the insulating limiting plate (6) is provided with first inserting grooves (61) matched with the first inserting protrusions (83); and/or:

one end of the insulating plate, which faces the second end plate (3), is provided with a second inserting protrusion (84), and the second end plate (3) is provided with a second inserting groove (34) matched with the second inserting protrusion (84).

7. The battery with charged shell according to claim 4, characterized in that said limiting member (8) is an insulating bracket, said insulating bracket is sandwiched between said second end plate (3) and said pole group (4), a fixing post (85) is provided on said insulating bracket, and a fixing hole (35) matching with said fixing post (85) is provided on said second end plate (3); the insulating support defines an accommodation space (86) towards a side wall of the second end plate (3), and the accommodation space (86) is used for accommodating the lug parts (41) of the pole group (4).

8. A battery with charged housing according to any of claims 1-3, characterized in that the battery with charged housing further comprises an insulating seat (9), said insulating seat (9) being sandwiched between said first end plate (2) and said pole group (4), and said insulating seat (9) being provided with a first relief hole (91) for said tab portion (41) to pass through.

9. The battery of claim 8, wherein the battery further comprises:

a first insulating member (10), the first insulating member (10) being interposed between the insulating base (9) and the first end plate (2);

-a second insulating member (20), said second insulating member (20) having an annular projection cooperating with said first tab perforation (22), said second insulating member (20) ending against a surface of said first end plate (2) facing away from said pole group (4);

the pole post seat (30), pole post seat (30) install in second insulating piece (20), pole post seat (30) have the confession pole ear (41) pass second dodge hole (301), just pole post seat (30) are used for installing pole post piece (5), wherein, pole group (4) pole ear (41) pass first dodge hole (91) first insulating piece (10) first pole ear perforation (22), second insulating piece (20) and second dodge hole (301) back buckle and with pole post piece (5) welding.

10. A battery with charged housing according to any of claims 1-3, characterized in that the terminal portion (21) is in one piece with the first terminal plate (2).