CN216850254U - Battery and battery pack - Google Patents
Battery and battery pack Download PDFInfo
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- CN216850254U CN216850254U CN202220579041.0U CN202220579041U CN216850254U CN 216850254 U CN216850254 U CN 216850254U CN 202220579041 U CN202220579041 U CN 202220579041U CN 216850254 U CN216850254 U CN 216850254U
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Abstract
The utility model relates to a battery technology field provides a battery and group battery. The battery includes: a battery case; the pole assembly is arranged on the battery shell, at least part of the pole assembly is positioned outside the battery shell, and the pole assembly is provided with an accommodating space; the insulating piece is at least partially positioned outside the battery shell and covers the outer edge of the pole post assembly, and one part of the insulating piece is positioned in the accommodating space; wherein the insulating member exposes a connection surface of the post assembly for connection with the busbar. Because utmost point post subassembly is provided with accommodation space, and a part of insulating part is located accommodation space, can be so that utmost point post subassembly and insulating part reliably connect to when the busbar is connected with utmost point post subassembly's connecting surface, utmost point post subassembly and insulating part can provide reliable support to the busbar, with this guarantee busbar and connecting surface's reliable connection, thereby improve the performance of battery.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery and group battery.
Background
In the related art, when the batteries are grouped, the poles of the batteries are connected with the bus bar, so that the batteries are connected in series or in parallel. In order to ensure the connection stability of the pole and the bus bar in the prior art, the pole and the bus bar are required to be reliably abutted.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery and group battery to improve the performance of battery.
According to a first aspect of the present invention, there is provided a battery, comprising:
a battery case;
the pole assembly is arranged on the battery shell, at least part of the pole assembly is positioned outside the battery shell, and the pole assembly is provided with an accommodating space;
the insulating part is at least partially positioned outside the battery shell and covers the outer edge of the pole post assembly, and one part of the insulating part is positioned in the accommodating space;
wherein the insulating member exposes a connection surface of the pole assembly for connection with the busbar.
The utility model discloses battery includes battery housing, utmost point post subassembly and insulating part, and utmost point post subassembly and insulating part set up in battery housing to can make utmost point post subassembly reliably set up in battery housing through the insulating part. Because utmost point post subassembly is provided with accommodation space, and a part of insulating part is located accommodation space, can be so that utmost point post subassembly and insulating part reliably connect to when the busbar is connected with utmost point post subassembly's connecting surface, utmost point post subassembly and insulating part can provide reliable support to the busbar, with this guarantee busbar and connecting surface's reliable connection, thereby improve the performance of battery.
According to a second aspect of the present invention, there is provided a battery pack comprising the above battery.
The utility model discloses group battery includes the battery, and the battery includes battery housing, utmost point post subassembly and insulating part, and utmost point post subassembly and insulating part set up in battery housing to can make utmost point post subassembly reliably set up in battery housing through the insulating part. Because utmost point post subassembly is provided with accommodation space, and a part of insulating part is located accommodation space, can be so that utmost point post subassembly and insulating part reliably connect to when the busbar is connected with utmost point post subassembly's connecting surface, utmost point post subassembly and insulating part can provide reliable support to the busbar, with this guarantee busbar and connecting surface's reliable connection, thereby improve the performance of group battery.
Drawings
For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may be arranged differently as is known in the art. Further, in the drawings, like reference characters designate the same or similar parts throughout the several views. Wherein:
fig. 1 is a partial structural schematic view of a battery pack according to an exemplary embodiment;
FIG. 2 is a schematic illustration of a partial structure of a battery according to an exemplary embodiment;
FIG. 3 is a partially enlarged schematic view of a battery according to an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating the structure of a terminal of a battery according to an exemplary embodiment;
fig. 5 is a schematic diagram illustrating a structure of an insulating member of a battery according to an exemplary embodiment.
The reference numerals are explained below:
1. a bus bar; 10. a battery case; 11. a first surface; 12. a second surface; 13. recessing; 20. a pole assembly; 21. a connecting surface; 22. a terminal; 221. a support portion; 222. a connecting portion; 223. the pole accommodating hole is formed in the pole; 23. a pole column; 24. an accommodating space; 241. a through hole; 242. a groove; 30. an insulating member; 31. a main body portion; 32. an extension portion; 33. a connecting portion; 34. avoiding holes; 35. and an identification part.
Detailed Description
The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.
In the description of the present disclosure, unless explicitly specified or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, reference to "the" object or "an" object is also intended to mean one of many such objects possible.
The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood as a specific case by a person skilled in the art.
Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in this context, when an element or feature is referred to as being "on", "under", or "inner", "outer" with respect to another element(s), it can be directly on "," under ", or" inner "," outer "with respect to the other element(s), or indirectly on", "under", or "inner", "outer" with respect to the other element(s) via intervening elements.
An embodiment of the present invention provides a battery, please refer to fig. 1 to 5, the battery includes: a battery case 10; the pole assembly 20, the pole assembly 20 is arranged on the battery shell 10, at least part of the pole assembly 20 is positioned outside the battery shell 10, and the pole assembly 20 is provided with an accommodating space 24; an insulating member 30, at least part of the insulating member 30 is located outside the battery case 10 and covers the outer edge of the pole assembly 20, and a part of the insulating member 30 is located in the accommodating space 24; wherein the insulating member 30 exposes the connection surface 21 of the pole assembly 20 for connection with the busbar 1.
The utility model discloses a battery of an embodiment includes battery housing 10, utmost point post subassembly 20 and insulating part 30, and utmost point post subassembly 20 and insulating part 30 set up in battery housing 10 to can make utmost point post subassembly 20 reliably set up in battery housing 10 through insulating part 30. Because the pole assembly 20 is provided with the accommodating space 24, and a part of the insulating piece 30 is positioned in the accommodating space 24, the pole assembly 20 and the insulating piece 30 can be reliably connected, so that when the bus bar 1 is connected with the connecting surface 21 of the pole assembly 20, the pole assembly 20 and the insulating piece 30 can provide reliable support for the bus bar 1, thereby ensuring the reliable connection of the bus bar 1 and the connecting surface 21, and improving the service performance of the battery.
It should be noted that, the pole assembly 20 is provided with the accommodating space 24, and a part of the insulating member 30 is located in the accommodating space 24, so that not only the volume of the pole assembly 20 can be reduced, but also the connection stability of the insulating member 30 and the pole assembly 20 can be ensured, thereby ensuring that the insulating member 30 and the pole assembly 20 are stably connected to the battery housing 10, and also preventing the stability of the insulating member 30 and the pole assembly 20 from being affected due to the pressing force of the bus bar 1 when the bus bar 1 is connected with the connection surface 21 of the pole assembly 20.
In one embodiment, the insulating member 30 is disposed on the battery housing 10 and covers the outer edge of the pole assembly 20, the insulating member 30 is disposed, and the insulating member 30 covers the outer edge of the pole assembly 20, so that the insulating member 30 can fix the pole assembly 20, and since the insulating member 30 is disposed on the battery housing 10, so that the pole assembly 20 can be disposed on the battery housing 10 through the insulating member 30, thereby ensuring that the pole assembly 20 and the insulating member 30 can have a sufficient contact area with the battery housing 10, thereby ensuring that the pole assembly 20 is stably disposed on the battery housing 10, at this time, the cross-sectional area of the pole assembly 20 can be properly reduced, so that the cost is saved, and the weight can be reduced.
The post assembly 20 may be directly disposed on the battery housing 10, and the post assembly 20 and the battery housing 10 may be disposed in an insulating manner, for example, at least one of the post assembly 20 and the battery housing 10 may be coated with an insulating layer, and the insulating layer may be a coating, such as aluminum oxide (Al)2O3) Zirconium oxide (ZrO)2) And the like ceramic materials. Or, the pole assembly 20 can be disposed on the battery casing 10 through the insulating member 30, since the insulating member 30 covers the outer edge of the pole assembly 20, it can be ensured that the insulating member 30 and the battery casing 10 have a sufficient contact area, so that it is ensured that the pole assembly 20 is stably disposed on the battery casing 10, and it can be ensured that the pole assembly 20 and the battery casing 10 are disposed in an insulating manner.
The battery includes a cell and an electrolyte, and a minimum unit capable of performing an electrochemical reaction such as charge/discharge. The battery cell refers to a unit formed by winding or laminating a stack including a first electrode, a separator, and a second electrode. When the first electrode is a positive electrode, the second electrode is a negative electrode. Wherein the polarities of the first and second electrodes may be interchanged. The battery core is disposed in the battery casing 10, the pole assembly 20 is electrically connected to the battery core, and a part of the pole assembly 20 may be disposed in the battery casing 10, so as to facilitate the electrical connection of the pole assembly 20 to the battery core, and certainly, in some embodiments, the whole pole assembly 20 is not disposed outside the battery casing 10. The pole assembly 20 and the battery core may be connected through an adaptor sheet, or the pole assembly 20 and the battery core may be directly connected.
Specifically, the cell may be a laminated cell, and the cell has a first electrode, a second electrode opposite to the first electrode, and a diaphragm disposed between the first electrode and the second electrode, which are stacked on top of each other, so that a plurality of pairs of the first electrode and the second electrode are stacked to form the laminated cell.
The battery may also be a winding battery, that is, a first electrode, a second electrode opposite to the first electrode in electrical property, and a diaphragm sheet disposed between the first electrode and the second electrode are wound to obtain a winding battery core.
The battery case 10 may include a first case member and a second case member connected to the first case member to form a receiving space in which the battery cell is disposed, thereby ensuring reliable sealing of the battery cell. The first shell piece and the second shell piece can both form a space, and after the first shell piece and the second shell piece are in butt joint, the battery cell is located in an accommodating space formed by the two spaces. The first housing member and the second housing member may have the same or different spatial depths, and are not limited herein. The first housing member may be a flat plate, and the second housing member forms a space.
In one embodiment, as shown in fig. 2 to 4, the receiving space 24 includes a through hole 241, and a portion of the insulating member 30 is located in the through hole 241, so that the insulating member 30 and the pole assembly 20 can be reliably connected, thereby improving the connection strength of the insulating member 30 and the pole assembly 20.
In one embodiment, the through hole 241 may be a plurality of through holes 241, a plurality of through holes 241 are spaced apart, and each through hole 241 may be filled with a portion of the insulating member 30, so as to ensure the connection strength between the insulating member 30 and the pole assembly 20. As shown in connection with fig. 4, there may be two through holes 241.
In one embodiment, as shown in fig. 2 to 4, the accommodating space 24 further includes a groove 242, and the through hole 241 is located in the groove 242; wherein, the recess 242 sets up in the one side that utmost point post subassembly 20 deviates from battery housing 10, and partly filling in through-hole 241 and recess 242 of insulating part 30 not only can guarantee the joint strength of insulating part 30 and utmost point post subassembly 20, and can be so that reduce utmost point post subassembly 20's volume to this weight of lightening the battery, but can not influence utmost point post subassembly 20's ability of overflowing simultaneously.
In one embodiment, as shown in fig. 4, the through hole 241 may be a strip-shaped hole, the groove 242 is a substantially rectangular groove, and the groove 242 may include a first opening above the terminal 22 and a second opening at the side of the terminal 22.
In one embodiment, the insulation member 30 is an injection molded member, which is not only simple in structure and convenient in process, but also can reliably insulate the pole assembly 20.
In some embodiments, the insulator 30 may also be made of rubber.
In one embodiment, the insulating member 30 is integrally injection-molded on the pole assembly 20, so that a portion of the insulating member 30 is located between the pole assembly 20 and the battery housing 10, which not only ensures reliable insulation between the pole assembly 20 and the battery housing 10, but also ensures the connection strength between the pole assembly 20 and the insulating member 30 when the insulating member 30 is integrally injection-molded on the pole assembly 20.
It should be noted that, the accommodating space 24 includes the through hole 241 and the groove 242, and the through hole 241 can be used as an injection molding hole, which not only can ensure that the insulating member 30 is reliably injection molded on the pole assembly 20, but also can ensure that a part of the insulating member 30 is reliably injection molded in the through hole 241 and the groove 242, so as to ensure the connection strength between the pole assembly 20 and the insulating member 30, and also can ensure that a part of the insulating member 30 is located between the pole assembly 20 and the battery housing 10.
In one embodiment, the insulating member 30 fills the accommodating space 24, so that the connection strength between the pole assembly 20 and the insulating member 30 can be ensured, thereby providing a reliable support for the bus bar 1 and preventing the bus bar 1 from damaging the pole assembly 20 and the insulating member 30.
A portion of the insulating member 30 may fill the through-hole 241 and the groove 242, and the thickness of the insulating member 30 within the groove 242 may correspond to the depth of the groove 242. Alternatively, the thickness of the insulator 30 within the groove 242 may be less than the depth of the groove 242. Alternatively, the thickness of the insulator 30 within the groove 242 may be greater than the depth of the groove 242.
In one embodiment, the terminal post assembly 20 is disposed with the connecting surface 21 for connection with the bus bar 1 protruding from the insulator 30, thereby facilitating reliable connection of the bus bar 1 with the connecting surface 21, thereby improving the usability of the battery.
In one embodiment, the size of the connecting surface 21 protruding the insulating member 30 is not greater than 0.1mm, which can enable the pole assembly 20 and the insulating member 30 to provide enough fixing support for the bus bar 1 on the basis of ensuring the bus bar 1 is reliably connected with the connecting surface 21, thereby ensuring the stability of the bus bar 1.
Busbar 1 and connection surface 21 can weld, and connection surface 21 protrudes insulating part 30's size is not more than 0.1mm for busbar 1 can not produce the rosin joint with connection surface 21, improves welding quality, and can make utmost point post subassembly 20 and insulating part 30 provide the fixed support portion, guarantee the supporting effect.
In some embodiments, the dimension of the connecting surface 21 protruding beyond the insulator 30 may be equal to 0.01mm, 0.02mm, 0.03mm, 0.05mm, 0.08mm, 0.09mm, 0.095mm, or 0.1mm, among others. The connecting surface 21 protrudes from the insulating member 30, so that the connecting surface 21 can be located outside the insulating member 30, thereby facilitating the bus bar 1 to be brought into reliable contact with the connecting surface 21, and ensuring the welding stability of the subsequent bus bar 1 to the connecting surface 21.
In one embodiment, the connection surface 21 is at an angle with respect to the surface of the battery housing 10 on which the pole assembly 20 is disposed, i.e., the connection surface 21 is at an angle with respect to the surface of the battery housing 10 on which the pole assembly 20 is disposed, which is greater than 0 degrees and less than 180 degrees, thereby facilitating the connection of the busbar 1 with the connection surface 21.
In some embodiments, as shown in fig. 2 and 3, the connecting surface 21 is substantially perpendicular to the surface of the battery housing 10 where the pole assembly 20 is disposed, so that when the batteries are grouped, the connection of the bus bar 1 with the connecting surface 21 can be facilitated, and the bus bar 1 is prevented from occupying too much battery grouping space, thereby ensuring the energy density of the battery pack.
It should be noted that the surface of the battery case 10 provided with the pole assembly 20 may be perpendicular to the stacking direction when a plurality of batteries are grouped. The connection surface 21 is substantially perpendicular to the surface of the battery case 10 on which the pole assembly 20 is disposed, and it is important here that the connection surface 21 is perpendicular to the surface of the battery case 10 on which the pole assembly 20 is disposed, regardless of manufacturing errors and mounting errors.
In certain embodiments, it is not excluded that the connection surface 21 is parallel to the surface of the battery housing 10 on which the pole assembly 20 is provided.
In one embodiment, the insulating member 30 is disposed at the outer edge of the non-surrounding pole assembly 20, so that the problem of large volume of the insulating member 30 can be avoided on the basis of ensuring that the insulating member 30 is reliably connected to the pole assembly 20, thereby reducing the weight of the battery as a whole.
As shown in fig. 2 and 3, the insulating member 30 covers most of the outer edge of the pole assembly 20, so as to ensure that the insulating member 30 is reliably connected to the pole assembly 20, while part of the outer edge of the pole assembly 20 is not covered by the insulating member 30, specifically, the outer edge of the top end of the pole assembly 20 is not covered by the insulating member 30, and part of the outer edge of the insulating member 30 covering the connecting surface 21, that is, part of the outer edge of the connecting surface 21 is not covered by the insulating member 30.
In one embodiment, the insulating members 30 cover at least two opposite ends of the pole assembly 20 along the length direction of the connecting surface 21, so that the upper and lower ends of the connecting surface 21 are provided with the insulating members 30, which not only can realize reliable protection of the connecting surface 21, but also can realize positioning of the bus bar 1 by the insulating members 30 at the upper and lower ends of the connecting surface 21 when the bus bar 1 is connected with the connecting surface 21.
The length direction of the connecting surface 21 can be considered as the width direction of the first surface 11, and further, the upper and lower ends of the connecting portion 222 of the pole assembly 20 are covered with the insulating member 30, as shown in fig. 2 and 3.
In one embodiment, as shown in fig. 2-4, the pole assembly 20 includes: a terminal 22, at least a portion of the terminal 22 being located outside the battery case 10, an insulator 30 at least partially covering an outer edge of the terminal 22, the terminal 22 including a connection surface 21; and a pole 23, the pole 23 being connected to the terminal 22, at least a part of the pole 23 being located inside the battery case 10. The insulation member 30 covering the outer edge of the terminal 22 can ensure reliable fixation of the pole post assembly 20, while at least a portion of the pole post 23 connected to the terminal 22 is located inside the battery case 10, thereby facilitating the electrical connection of the pole post 23 with the battery cell.
In one embodiment, as shown in fig. 2 and 3, the accommodating space 24 is provided in the terminal 22, the two pole posts 23 are provided, and the accommodating space 24 is located between the two pole posts 23, so that the insulating member 30 can be reliably connected to the terminal 22, and a part of the insulating member 30 can be provided in an intermediate position of the terminal 22, and the connecting force applied by the insulating member 30 to the terminal 22 is substantially balanced.
In one embodiment, the connection line of the central points of the two poles 23 intersects with the accommodating space 24, that is, the two sides of the insulating member 30 in the accommodating space 24 are respectively provided with the poles 23, which not only can ensure the connection strength between the insulating member 30 and the terminal 22, but also can ensure that the accommodating space 24 is used as an injection molding hole in the process of integrally injection molding the insulating member 30 on the pole assembly 20, so that the diffusion can be performed by the through hole 241 of the accommodating space 24, and the diffusion speeds on the two sides of the accommodating space 24 are basically consistent, so that the parts of the insulating member 30 on the two sides of the accommodating space 24 can be basically synchronously molded, thereby improving the injection molding efficiency, and ensuring the structural reliability of the formed insulating member 30.
In one embodiment, as shown in fig. 2 and 3, the terminal 22 includes: a support part 221, wherein the support part 221 is arranged on the battery shell 10 through an insulating piece 30, and the pole 23 is connected with the support part 221; a connection portion 222, the connection portion 222 being connected to the support portion 221, the connection portion 222 being provided to the battery case 10 through the insulating member 30, the connection portion 222 including a connection surface 21; the included angle is formed between the supporting portion 221 and the connecting portion 222, the supporting portion 221 can be reliably fixed on the battery case 10, and the included angle is formed between the supporting portion 221 and the connecting portion 222, so that the bus bar 1 can be reliably connected with the connecting portion 222.
It should be noted that an included angle is formed between the supporting portion 221 and the connecting portion 222, that is, an included angle greater than 0 and smaller than 180 degrees is formed between the supporting portion 221 and the connecting portion 222. The supporting portion 221 and the connecting portion 222 may be substantially perpendicular, and the insulating member 30 covers outer edges of the supporting portion 221 and the connecting portion 222, as shown in fig. 3.
In one embodiment, as shown in conjunction with fig. 2-5, the insulator 30 includes: a body portion 31, at least part of the body portion 31 covering the outer edge of the pole assembly 20; an extension part 32, wherein the extension part 32 is connected with the main body part 31 and is positioned in the accommodating space 24; connecting portion 33, connecting portion 33 are located accommodation space 24, and main part 31 and extension 32 are connected respectively to the both ends of connecting portion 33, can be so that insulating part 30 reliably connects in utmost point post subassembly 20 to guarantee the joint strength of insulating part 30 and utmost point post subassembly 20, avoid insulating part 30 and utmost point post subassembly 20 to appear rocking scheduling problem.
The main body 31 generally forms a receiving slot, a part of the pole assembly 20 is located in the receiving slot, the extending portion 32 extends from the main body 31 into the receiving slot and is disposed in the groove 242 of the receiving space 24, the connecting portion 33 is located in the receiving slot, two ends of the connecting portion 33 are respectively connected to the main body 31 and the extending portion 32, and the connecting portion 33 is located in the through hole 241 of the receiving space 24. The through hole 241 may be plural, and the corresponding connection portion 33 may be plural.
In one embodiment, as shown in fig. 4 and 5, the terminal 22 may be provided with two post receiving holes 223, the post 23 may be disposed in the post receiving hole 223, and correspondingly, the main body 31 may be provided with an avoiding hole 34, and the post 23 may penetrate through the avoiding hole 34 and may extend into the battery housing 10.
In one embodiment, as shown in fig. 2, the insulating member 30 is provided with a mark portion 35, and the mark portion 35 is used for marking the polarity of the pole assembly 20, so that damage to the battery case 10 due to the mark portion 35 being provided on the battery case 10 can be avoided, and the mark portion 35 being provided on the insulating member 30 is also convenient to operate, and the mark portion 35 can be provided on the extension portion 32.
It should be noted that the pole assembly 20 is a positive pole assembly, and the identification portion 35 includes at least one of a cross shape and a right-angled shape, i.e., the pole assembly 20 is characterized as the positive pole assembly by "+" or "positive". The pole assembly 20 is a negative pole assembly, and the identification portion 35 includes at least one of a straight line shape and a negative line shape, i.e., the pole assembly 20 is characterized as a negative pole assembly by "-" or "negative".
In one embodiment, as shown in fig. 2, the battery housing 10 includes two opposite first surfaces 11 and four second surfaces 12 disposed around the first surfaces 11, that is, the battery housing 10 has an approximately rectangular structure, the area of the first surface 11 is larger than that of the second surface 12, the pole assembly 20 is disposed on the first surface 11, the insulating member 30 is disposed on the first surface 11 and covers the outer edge of the pole assembly 20, so that the pole assembly 20 can have a reliable supporting surface, thereby ensuring the stability of the pole assembly 20.
It should be noted that the two opposite first surfaces 11 are large surfaces of the battery case 10, the four second surfaces 12 are small surfaces of the battery case 10, the four second surfaces 12 include two pairs of small surfaces, i.e., a first pair of small surfaces extending along the length direction of the battery case 10, and a second pair of small surfaces extending along the width direction of the battery case 10, and the areas of the first pair of small surfaces are larger than the areas of the second pair of small surfaces, but smaller than the areas of the large surfaces.
In one embodiment, the connecting surface 21 is substantially perpendicular to the first surface 11, so that the connection of the bus bar 1 to the connecting surface 21 can be facilitated when the batteries are grouped, and the bus bar 1 is prevented from occupying an excessively large battery grouping space, thereby ensuring the energy density of the battery pack. The connecting surface 21 is perpendicular to the first surface 11 regardless of manufacturing errors and mounting errors.
In certain embodiments, it is not excluded that the pole assembly 20 may be disposed on the second surface 12.
In some embodiments, there are two pole assemblies 20, the two pole assemblies 20 are a positive pole assembly and a negative pole assembly, respectively, there are two tabs of the battery cell, the two tabs are a positive tab and a negative tab, respectively, the positive pole assembly is connected with the positive tab, and the negative pole assembly is connected with the negative tab.
As shown in fig. 1 and 2, the battery case 10 may be provided with two recesses 13, and the two recesses 13 and the two pole assemblies 20 may be respectively located on two opposite surfaces of the battery case 10. At this time, when the batteries are grouped, the pole assembly 20 of another battery can be received in the recess 13, thereby increasing the energy density of the battery pack.
In certain embodiments, it is not excluded that the pole assembly 20 of the battery may be disposed within the recess 13 of the battery.
The terminal post assembly 20 may be disposed at an end of the battery case 10, so that the connection is facilitated and the length and space of the battery can be fully utilized. The two pole assemblies 20 may be disposed on the same surface of the battery housing 10, or the two pole assemblies 20 may be disposed on both surfaces of the battery housing 10.
The battery case 10 may have a substantially rectangular structure, that is, the battery case 10 may have a rectangular structure in consideration of manufacturing tolerances.
An embodiment of the utility model also provides a group battery, including foretell battery.
The utility model discloses a group battery of an embodiment includes the battery, and the battery includes battery housing 10, utmost point post subassembly 20 and insulating part 30, and utmost point post subassembly 20 and insulating part 30 set up in battery housing 10 to can make utmost point post subassembly 20 reliably set up in battery housing 10 through insulating part 30. Because the pole assembly 20 is provided with the accommodating space 24, and a part of the insulating member 30 is located in the accommodating space 24, the pole assembly 20 and the insulating member 30 can be reliably connected, so that when the bus bar 1 is connected with the connecting surface 21 of the pole assembly 20, the pole assembly 20 and the insulating member 30 can provide reliable support for the bus bar 1, thereby ensuring the reliable connection of the bus bar 1 and the connecting surface 21, and improving the use performance of the battery pack.
In one embodiment, the battery pack may include at least two cells, with the buss bar 1 connecting two pole assemblies 20 of two adjacent cells, as shown in fig. 1. The respective cells are arranged in sequence, and further, the first surfaces 11 of the adjacent cells are arranged to face each other so that the stacking direction of the cells is perpendicular to the first surfaces 11.
The busbar 1 is connected with the pole assemblies 20 of two adjacent batteries, the connecting surface 21 of the pole assembly 20 is slightly parallel to the end surfaces of the batteries so as to be connected with the busbar 1, namely the connecting surface 21 can be parallel to one second surface 12 of the battery, so that the busbar 1 and the pole assemblies 20 are conveniently connected, and the space utilization rate is high. The busbar 1 may be of a generally U-shaped configuration to facilitate connection to the two-cell pole assembly 20, as shown in figure 1.
The battery pack is a battery module or a battery pack.
The battery module includes a plurality of batteries, and the battery module may further include an end plate and a side plate for fixing the plurality of batteries.
The battery pack may include a battery case, and the plurality of batteries may be disposed in the battery case. A plurality of batteries can set up in the battery box after forming battery module, and a plurality of batteries can be fixed through end plate and curb plate. A plurality of batteries can directly set up in the battery box, need not to pack a plurality of batteries promptly, and at this moment, can get rid of end plate and curb plate.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A battery, comprising:
a battery case (10);
the battery pack comprises a pole assembly (20), wherein the pole assembly (20) is arranged on the battery case (10), at least part of the pole assembly (20) is positioned on the outer side of the battery case (10), and the pole assembly (20) is provided with an accommodating space (24);
an insulator (30), at least part of the insulator (30) being located outside the battery case (10) and covering an outer edge of the pole assembly (20), a part of the insulator (30) being located within the receiving space (24);
wherein the insulator (30) exposes a connection surface (21) of the pole assembly (20) for connection with a busbar (1).
2. The battery according to claim 1, wherein the receiving space (24) comprises a through hole (241).
3. The battery according to claim 2, wherein the receiving space (24) further comprises a groove (242), the through hole (241) being located within the groove (242);
wherein the groove (242) is arranged on one side of the pole assembly (20) departing from the battery shell (10).
4. The battery according to claim 3, wherein the insulator (30) is integrally injection molded on the pole assembly (20) such that a portion of the insulator (30) is located between the pole assembly (20) and the battery case (10).
5. The battery according to any one of claims 1-4, characterized in that the pole assembly (20) comprises:
a terminal (22), at least a part of the terminal (22) being located outside the battery case (10), the insulating member (30) covering the terminal (22), the accommodating space (24) being provided to the terminal (22), the terminal (22) including the connecting surface (21);
an electrode post (23), the electrode post (23) being connected to the terminal (22);
the number of the polar columns (23) is two, and the accommodating space (24) is located between the two polar columns (23).
6. The battery according to claim 5, characterized in that the line connecting the center points of the two poles (23) intersects the receiving space (24).
7. The battery according to any one of claims 1 to 4, wherein the insulating member (30) comprises:
a body portion (31), at least part of the body portion (31) covering an outer edge of the pole assembly (20);
an extension part (32), wherein the extension part (32) is connected to the main body part (31) and is positioned in the accommodating space (24);
the connecting part (33) is located in the accommodating space (24), and two ends of the connecting part (33) are respectively connected with the main body part (31) and the extending part (32).
8. The battery according to any one of claims 1 to 4, characterized in that an identification part (35) is provided on the insulating member (30), and the identification part (35) is used for identifying the polarity of the pole assembly (20).
9. The battery according to any one of claims 1-4, wherein the battery housing (10) comprises two opposing first surfaces (11) and four second surfaces (12) disposed around the first surfaces (11), the first surfaces (11) having an area greater than the area of the second surfaces (12), the pole assembly (20) being disposed on the first surfaces (11), the insulator (30) being disposed on the first surfaces (11);
wherein the connection surface (21) is substantially perpendicular to the first surface (11).
10. A battery pack characterized by comprising the battery of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220579041.0U CN216850254U (en) | 2022-03-16 | 2022-03-16 | Battery and battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220579041.0U CN216850254U (en) | 2022-03-16 | 2022-03-16 | Battery and battery pack |
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| CN216850254U true CN216850254U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220579041.0U Active CN216850254U (en) | 2022-03-16 | 2022-03-16 | Battery and battery pack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024000506A1 (en) * | 2022-06-30 | 2024-01-04 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electrical device |
| WO2024000507A1 (en) * | 2022-06-30 | 2024-01-04 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electric device |
-
2022
- 2022-03-16 CN CN202220579041.0U patent/CN216850254U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024000506A1 (en) * | 2022-06-30 | 2024-01-04 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electrical device |
| WO2024001058A1 (en) * | 2022-06-30 | 2024-01-04 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electric apparatus |
| WO2024000507A1 (en) * | 2022-06-30 | 2024-01-04 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electric device |
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