CN216850253U - Battery and battery pack - Google Patents
Battery and battery pack Download PDFInfo
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- CN216850253U CN216850253U CN202220577632.4U CN202220577632U CN216850253U CN 216850253 U CN216850253 U CN 216850253U CN 202220577632 U CN202220577632 U CN 202220577632U CN 216850253 U CN216850253 U CN 216850253U
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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 component is arranged on the battery shell, and at least part of the pole component is positioned outside the battery shell; the insulating part, at least part that the insulating part set up is located the battery case outside, and utmost point post subassembly is used for the connection surface that is connected with the busbar to bulge the insulating part setting. Utmost point post subassembly and insulating part set up in battery case to can make utmost point post subassembly reliably set up in battery case through the insulating part, also can make utmost point post subassembly suitably reduce because setting up of insulating part, and also can guarantee utmost point post subassembly's stability. And through the setting of the connecting surface protrusion insulating part of the pole component, the bus bar is conveniently and reliably connected with the connecting surface, and the service performance of the battery is improved.
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 strength between the terminal post and the battery shell, the size of the terminal post in the prior art is relatively large, so that the problem of high cost is caused.
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 component is arranged on the battery shell, and at least part of the pole component is positioned outside the battery shell;
the insulating part, at least part that the insulating part set up is located the battery case outside, and utmost point post subassembly is used for the connection surface that is connected with the busbar to bulge the insulating part setting.
The utility model discloses the battery includes battery case, utmost point post subassembly and insulating part, and utmost point post subassembly and insulating part set up in battery case to can make utmost point post subassembly reliably set up in battery case through the insulating part, also can make utmost point post subassembly suitably reduce because setting up of insulating part, and also can guarantee the stability of utmost point post subassembly. And through the setting of the connecting surface protrusion insulating part of the pole component, the bus bar is conveniently and reliably connected with the connecting surface, and the service performance of the battery is improved.
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, also can make utmost point post subassembly suitably reduce because setting up of insulating part, and also can guarantee the stability of utmost point post subassembly. And through the setting of the connection surface protrusion insulating part with utmost point post subassembly to this makes things convenient for busbar and connection surface's reliable connection, thereby improves 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 illustrating 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; 23. a pole column; 24. accommodating grooves; 30. an insulating member; 31. a main body portion; 32. a positioning 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 otherwise explicitly specified or limited, the terms "first", "second", and "first" 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 by those skilled in the art as the case may be.
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 fig. 3, the battery includes: a battery case 10; the pole assembly 20, the pole assembly 20 is arranged in the battery shell 10, and at least part of the pole assembly 20 is positioned outside the battery shell 10; an insulating member 30, at least a part of the insulating member 30 being located outside the battery case 10, the pole assembly 20 being disposed with the connecting surface 21 for connection with the busbar 1 projecting out of the insulating member 30.
The utility model discloses a battery of an embodiment includes battery housing 10, utmost point post subassembly 20 and insulating member 30, and utmost point post subassembly 20 and insulating member 30 set up in battery housing 10 to can make utmost point post subassembly 20 reliably set up in battery housing 10 through insulating member 30, because setting up of insulating member 30 also can make utmost point post subassembly 20 can suitably reduce, and also can guarantee utmost point post subassembly 20's stability. And the connection surface 21 of the pole assembly 20 is protruded from the insulating member 30, thereby facilitating the reliable connection of the bus bar 1 to the connection surface 21 and improving the usability of the battery.
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. 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 electrode and the second electrode can 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 wound 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 wound 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.
It should be noted that the insulating member 30 may be an injection molded member, the insulating member 30 may be made of plastic, and the insulating member 30 may also be made of rubber. The material of the insulating member 30 is not limited thereto.
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 of the plurality of batteries when 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, as shown in fig. 2 and 3, the pole assembly 20 is provided with the receiving groove 24, and a portion of the insulating member 30 is located in the receiving groove 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.
The receiving groove 24 may be a recess, for example, a recess provided on the side of the pole assembly 20 facing the battery housing 10 and a portion of the insulating member 30 is located in the receiving groove 24, or a recess provided on the side of the pole assembly 20 facing away from the battery housing 10 and a portion of the insulating member 30 is located in the receiving groove 24. The receiving slot 24 may be a notch, as shown in fig. 2, and a portion of the insulating member 30 is located within the receiving slot 24.
It should be noted that, the specific structural form of the receiving groove 24 is not limited herein, and may be selected according to actual requirements, as long as it is ensured that the volume of the pole assembly 20 can be reduced, and the connection stability of the insulating member 30 and the pole assembly 20 can be ensured.
In one embodiment, a portion of the insulating member 30 is located between the battery housing 10 and the pole assembly 20, so that the pole assembly 20 can be connected to the battery housing 10 through the insulating member 30 on the basis of ensuring reliable insulation between the battery housing 10 and the pole assembly 20, thereby ensuring that the pole assembly 20 is stably connected to the battery housing 10.
It should be noted that, the whole of the insulating member 30 may be located outside the battery case 10, the insulating member 30 covers the outer edge of the pole assembly 20, so as to ensure the reliable connection between the pole assembly 20 and the insulating member 30, and a part of the insulating member 30 is located between the battery case 10 and the pole assembly 20, so as to enable the insulating member 30 to be reliably connected with the battery case 10, so as to ensure that the pole assembly 20 is stably connected to the battery case 10, so as to avoid the position adjustment of the pole assembly 20 during the use process, so as to ensure the use performance of the battery. Further, a part of the insulating part 30 is located in the accommodating groove 24 of the pole assembly 20, so that the size of the pole assembly 20 can be reduced, and the connection stability between the insulating part 30 and the pole assembly 20 can be further ensured.
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 the opposite ends of the pole assembly 20 along the length of the connecting surface 21, so that the connecting surface 21 can have the insulating members 30 at both the upper and lower ends, which not only can achieve reliable protection of the connecting surface 21, but also can achieve positioning of the bus bar 1 by the insulating members 30 at both 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 and 3, the insulating member 30 includes: a body portion 31, at least part of the body portion 31 covering the outer edge of the pole assembly 20; the positioning portion 32 and the connecting surface 21 form an included angle therebetween, so that the positioning portion 32 and the connecting surface 21 are in limited contact with the busbar 1, positioning of the busbar 1 is facilitated in a connecting process, connection of the busbar 1 is facilitated, and connection efficiency of the busbar 1 is improved. The positioning parts 32 may be coupled with the battery case 10, thereby improving the coupling stability of the insulating member 30.
As shown in fig. 1, one surface of the bus bar 1 is connected to the connecting surface 21, so as to ensure reliable electrical connection between the bus bar 1 and the post assembly 20, and the other surface of the bus bar 1 is connected to the positioning portion 32, so as to facilitate positioning of the bus bar 1 during connection, so as to ensure that one surface of the bus bar 1 and the connecting surface 21 have reliable contact positions, so as to ensure that a reliable contact surface is provided between the bus bar 1 and the post assembly 20, so as to ensure overcurrent capability of the bus bar 1 and the post assembly 20.
In one embodiment, the positioning portion 32 is substantially perpendicular to the connecting surface 21, and the positioning portion 32 is substantially parallel to the surface of the battery case 10 where the pole assembly 20 is disposed, that is, the connecting surface 21 is substantially perpendicular to the surface of the battery case 10 where the pole assembly 20 is disposed, so that not only the connection of the bus bar 1 with the pole assembly 20 is facilitated, but also the reliable positioning between the bus bar 1 and the insulating member 30 can be ensured, thereby improving the assembling efficiency of the bus bar 1.
As shown in conjunction with fig. 1 to 3, the positioning portion 32 is provided on the battery case 10, the surface of the positioning portion 32 contacting the bus bar 1 is parallel to the surface of the battery case 10 where the pole assembly 20 is provided, and the connection surface 21 is perpendicular to the surface of the battery case 10 where the pole assembly 20 is provided, so that one surface of the bus bar 1 contacting the pole assembly 20 and the other surface contacting the insulator 30 can be made perpendicular.
In one embodiment, as shown in fig. 2 and 3, 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.
The number of the pole posts 23 can be at least two, and as shown in fig. 2, the number of the pole posts 23 can be two, the two pole posts 23 are arranged on the terminal 22 at intervals, the terminal 22 is provided with a receiving groove 24, and a part of the insulating member 30 is located in the receiving groove 24, so that the insulating member 30 can be used for reliably fixing the terminal 22.
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, the insulating member 30 covers the outer edges of the supporting portion 221 and the connecting portion 222, and the positioning portion 32 and the supporting portion 221 are respectively located at two sides of the connecting portion 222, as shown in fig. 3.
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 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, 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 case 10, or the two pole assemblies 20 may be disposed on both surfaces of the battery case 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 battery, please refer to fig. 1 to fig. 3, the battery includes battery housing 10, utmost point post subassembly 20 and insulating part 30, battery housing 10 includes two relative first surfaces 11 and four second surfaces 12 that encircle first surface 11 and set up, the area of first surface 11 is greater than the area of second surface 12, utmost point post subassembly 20 sets up in first surface 11, insulating part 30 sets up in first surface 11, and covers utmost point post subassembly 20.
The utility model discloses a battery of an embodiment includes battery housing 10, utmost point post subassembly 20 and insulating member 30, and utmost point post subassembly 20 and insulating member 30 set up in battery housing 10 to insulating member 30 covers utmost point post subassembly 20, thereby can make utmost point post subassembly 20 reliably set up in battery housing 10 through insulating member 30, because setting up of insulating member 30 also can make utmost point post subassembly 20 can suitably reduce, and also can guarantee utmost point post subassembly 20's stability. And through all setting up utmost point post subassembly 20 and insulating part 30 on the great first surface 11 of area to can guarantee that utmost point post subassembly 20 has a reliable holding surface, with this stability of guaranteeing utmost point post subassembly 20.
In one embodiment, the connection surface 21 of the pole assembly 20 for connection with the busbar 1 is substantially perpendicular to the first surface 11, thereby facilitating connection of the busbar 1 with the pole assembly 20.
In one embodiment, the connecting surface 21 is disposed to protrude from the insulating member 30, thereby facilitating reliable connection of the bus bar 1 to 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.
It should be noted that, for the specific structure of the battery in this embodiment, reference may be made to the related structure of the battery, and details are not described herein.
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 member 30, and utmost point post subassembly 20 and insulating member 30 set up in battery housing 10 to insulating member 30 covers the outward flange of utmost point post subassembly 20, thereby can make utmost point post subassembly 20 reliably set up in battery housing 10 through insulating member 30, because setting up of insulating member 30 also can make utmost point post subassembly 20 can suitably reduce, and also can guarantee utmost point post subassembly 20's stability. And the reliable connection of the bus bar 1 to the connection surface 21 is facilitated by disposing the connection surface 21 of the pole assembly 20 to protrude from the insulator 30, thereby improving the usability 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 2.
In one embodiment, the insulator 30 includes: the main body part 31 and the positioning part 32, the bus bar 1 is in limit contact with the positioning part 32, so that the bus bar 1 can be conveniently positioned in the connection process, the bus bar 1 is conveniently connected, the connection efficiency of the bus bar 1 is improved, and the positioning part 32 can improve the connection stability of the insulating part 30 and the battery shell 10. 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 that have been 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 disclosure is limited only by the appended claims.
Claims (10)
1. A battery, comprising:
a battery case (10);
the pole assembly (20), the pole assembly (20) is arranged on the battery shell (10), and at least part of the pole assembly (20) is positioned outside the battery shell (10);
an insulating part (30), at least part of the insulating part (30) is located outside the battery shell (10), and a connecting surface (21) of the pole assembly (20) for connecting with a bus bar (1) is arranged protruding out of the insulating part (30).
2. The battery according to claim 1, wherein the connecting surface (21) protrudes beyond the insulator (30) by a dimension of no more than 0.1 mm.
3. The battery according to claim 1, characterized in that the connection surface (21) is substantially perpendicular to the surface of the battery housing (10) on which the pole assembly (20) is provided.
4. The battery according to claim 1, wherein the insulator (30) is disposed non-surrounding an outer edge of the pole assembly (20).
5. The battery according to claim 1, characterized in that the insulating member (30) covers at least opposite ends of the pole assembly (20) in a length direction of the connection surface (21).
6. The battery according to any one of claims 1 to 5, 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);
a positioning part (32), wherein an included angle is formed between the positioning part (32) and the connecting surface (21) for limiting contact with the bus bar (1);
wherein the positioning portion (32) is connected with the battery case (10).
7. The battery according to claim 6, characterized in that the positioning portion (32) is substantially perpendicular to the connection surface (21), the positioning portion (32) being substantially parallel to the surface of the battery case (10) where the pole assembly (20) is provided.
8. The battery according to any one of claims 1-5, characterized in that the pole assembly (20) comprises:
a terminal (22), at least a portion of the terminal (22) being located outside the battery case (10), the insulator (30) at least partially covering an outer edge of the terminal (22), the terminal (22) including the connection surface (21);
a pole post (23), the pole post (23) connected to the terminal (22), at least part of the pole post (23) located inside the battery case (10).
9. A battery pack characterized by comprising the battery according to any one of claims 1 to 8.
10. The battery pack according to claim 9, further comprising a busbar (1), wherein the busbar (1) connects the pole assemblies (20) of two adjacent cells, and wherein the busbar (1) is in spacing contact with the positioning portion (32) of the insulator (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220577632.4U CN216850253U (en) | 2022-03-16 | 2022-03-16 | Battery and battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220577632.4U CN216850253U (en) | 2022-03-16 | 2022-03-16 | Battery and battery pack |
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| CN216850253U true CN216850253U (en) | 2022-06-28 |
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| CN202220577632.4U Active CN216850253U (en) | 2022-03-16 | 2022-03-16 | Battery and battery pack |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2024021082A1 (en) * | 2022-07-29 | 2024-02-01 | 宁德时代新能源科技股份有限公司 | Battery and electric device |
| WO2024036487A1 (en) * | 2022-08-16 | 2024-02-22 | 宁德时代新能源科技股份有限公司 | Battery and electric apparatus |
-
2022
- 2022-03-16 CN CN202220577632.4U patent/CN216850253U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2024021082A1 (en) * | 2022-07-29 | 2024-02-01 | 宁德时代新能源科技股份有限公司 | Battery and electric device |
| WO2024036487A1 (en) * | 2022-08-16 | 2024-02-22 | 宁德时代新能源科技股份有限公司 | Battery and electric apparatus |
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