CN217086814U - Battery and battery pack - Google Patents

Abstract

The utility model relates to a battery technology field provides a battery and group battery. The battery includes: a battery case; the pole structure is arranged on the battery shell; at least part of the first transfer piece is arranged in the pole structure and is electrically connected with the battery shell; the second adapter is arranged separately from the first adapter and is electrically connected with the first adapter, so that the battery shell is electrically connected with the second adapter through the first adapter; the second adaptor is electrically connected with the pole structure, so that the battery shell is electrically connected with the pole structure. The pole column structure is electrically connected with the battery shell through the first adapter piece and the second adapter piece, so that the battery shell can be used as a potential acquisition structure of the battery, the subsequent connection is facilitated, and the use performance of the battery is improved.

Description

Battery and battery pack

Technical Field

The utility model relates to a battery technology field especially relates to a battery and group battery.

Background

In the correlation technique, the battery includes anodal utmost point post and negative pole utmost point post, and when the battery was used in groups, for the running state of real-time supervision battery, need carry out voltage acquisition through the circuit board, nevertheless because the mode of arranging of anodal utmost point post and negative pole utmost point post limits, the mode of arranging of circuit board is comparatively complicated.

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 structure is arranged on the battery shell;

at least part of the first transfer piece is arranged in the pole structure and is electrically connected with the battery shell;

the second adapter is arranged separately from the first adapter and is electrically connected with the first adapter, so that the battery shell is electrically connected with the second adapter through the first adapter;

the second adaptor is electrically connected with the pole structure, so that the battery shell is electrically connected with the pole structure.

The utility model discloses the battery includes battery housing, the first adaptor of utmost point post structure and second adaptor, and utmost point post structure is connected through first adaptor and second adaptor and battery housing electricity to can make battery housing can regard as a current potential collection structure of battery, with this convenient subsequent connection, thereby improve the performance of battery. And through setting up second adaptor with first adaptor components of a whole that can function independently, can make things convenient for utmost point post structure to form the electricity through first adaptor and second adaptor and battery shell and be connected.

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, the first adaptor of utmost point post structure and second adaptor, and utmost point post structure is connected through first adaptor and second adaptor and battery housing electricity to can make battery housing can regard as a current potential collection structure of battery, with this convenient subsequent connection, thereby improve the performance of group battery. And through setting up second adaptor with first adaptor components of a whole that can function independently, can make things convenient for utmost point post structure to form the electricity through first adaptor and second adaptor and battery shell and be connected.

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 partial structural schematic view of a battery according to a first exemplary embodiment;

fig. 3 is a partially enlarged schematic structural view of a battery according to a first exemplary embodiment;

fig. 4 is a schematic view of a partial cross-sectional structure of a battery according to a first exemplary embodiment;

fig. 5 is a partial structural view of a battery according to a second exemplary embodiment;

FIG. 6 is a schematic diagram illustrating the construction of a first and second adapter of a battery according to an exemplary embodiment;

FIG. 7 is a schematic diagram of a first and second adapter of a battery according to another exemplary embodiment

Fig. 8 is a partial structural view of a battery according to a third 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; 14. a groove; 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; 40. a first transfer member; 41. an elastic portion; 42. a cavity; 43. flanging part; 44. a boss portion; 45. a resistance; 50. a second adaptor; 51. a first connection block; 52. a second connecting block; 53. a safety portion; 54. a first stage; 55. a second stage; 56. and (4) connecting the blocks.

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 8, the battery includes: a battery case 10; a pole structure disposed in the battery case 10; the first rotating connector 40, at least part of the first rotating connector 40 is arranged in the pole structure and is electrically connected with the battery shell 10; a second adaptor 50, wherein the second adaptor 50 is separated from the first adaptor 40, and the second adaptor 50 is electrically connected with the first adaptor 40, so that the battery shell 10 is electrically connected with the second adaptor 50 through the first adaptor 40; the second adaptor 50 is electrically connected to the terminal structure, so that the battery case 10 is electrically connected to the terminal structure.

The utility model discloses a battery of an embodiment includes battery housing 10, the first adaptor 40 of utmost point post structure and second adaptor 50, and utmost point post structure is connected with battery housing 10 electricity through first adaptor 40 and second adaptor 50 to can make battery housing 10 can regard as a current potential collection structure of battery, with this convenient subsequent connection, thereby improve the performance of battery. By arranging the second adaptor 50 and the first adaptor 40 separately, the pole structure can be conveniently electrically connected with the battery case 10 through the first adaptor 40 and the second adaptor 50.

It should be noted that the battery may include two post structures, one of the post structures includes a positive post, the other post structure includes a negative post, and the positive post may form an electrical connection with the battery case 10 through the first adaptor 40 and the second adaptor 50, at this time, the battery case 10 and the negative post may serve as two potential collection points of the battery, so as to facilitate the subsequent circuit board to collect the voltage of the battery, and after all, each position of the battery case 10 may serve as a potential collection point. When the positive electrode post is electrically connected to the battery case 10, the negative electrode post is insulated from the battery case 10, and correspondingly, when the negative electrode post is electrically connected to the battery case 10, the positive electrode post is insulated from the battery case 10.

The second adapter 50 is provided separately from the first adapter 40, so that the first adapter 40 can be electrically connected to the battery case 10 first, and then the second adapter 50 can be connected to the first adapter 40. Due to the structural limitation of the battery shell 10, for example, the thickness of the battery shell 10 is small, the first adapter piece 40 and the first adapter piece 40 which are separated from each other are arranged, so that the first adapter piece 40 and the battery shell 10 can be more conveniently electrically connected, the connection between the second adapter piece 50 and the first adapter piece 40 can be completed subsequently, and the second adapter piece 50 can be electrically connected with the pole structure.

In one embodiment, the area of the first adaptor 40 contacting the battery case 10 is larger than the area of the first adaptor 40 contacting the second adaptor 50, so that the first adaptor 40 and the battery case 10 can have a larger contact area, and the reliability of the electrical connection between the first adaptor 40 and the battery case 10 can be improved when the large surface of the first adaptor 40 vibrates. The contact area between the first adapter 40 and the second adapter 50 is small, which is beneficial to the flatness processing, so as to ensure that the first adapter 40 and the second adapter 50 realize good electrical connection.

In one embodiment, the pole structure includes a pole assembly 20, the pole assembly 20 is disposed in the battery housing 10, and an insulating structure is disposed between the pole assembly 20 and the battery housing 10, for example, the pole assembly 20 andat least one of the battery cases 10 may be coated with an insulating layer, which may be a coating, such as alumina (Al) ₂ O ₃ ) Zirconium oxide (ZrO) ₂ ) And the like.

In one embodiment, as shown in fig. 2 to 5, the pole structure further includes: an insulator 30, the insulator 30 being provided to the battery case 10; the pole assembly 20 is disposed on the insulating member 30, so that the pole assembly 20 is disposed on the battery housing 10 through the insulating member 30, and direct insulation between the pole assembly 20 and the battery housing 10 by the insulating member 30 can be achieved.

At least a portion of the first adaptor 40 is disposed within the insulating member 30, and the first adaptor 40 is electrically connected to the battery housing 10, and the second adaptor 50 is electrically connected to the pole assembly 20, so that the pole assembly 20 can be electrically connected to the battery housing 10 through the first adaptor 40 and the second adaptor 50.

It should be noted that the number of the pole structures may be two, and the two corresponding pole assemblies 20 are respectively a positive pole assembly and a negative pole assembly, and an insulating structure is disposed between each of the positive pole assembly and the negative pole assembly and the battery case 10 for insulation. And one of the positive electrode terminal assembly and the negative electrode terminal assembly is electrically connected to the battery case 10 through the first adaptor 40 and the second adaptor 50.

In one embodiment, at least a portion of the second adaptor 50 is disposed in the insulating member 30, which can ensure that the second adaptor 50 can be electrically connected with the pole assembly 20 and the second adaptor 50 is stably disposed in the battery housing 10.

In one embodiment, as shown in fig. 5, the second adaptor 50 includes: a first connecting block 51, at least a part of the first connecting block 51 is disposed in the insulating member 30 and electrically connected to the first connecting member 40; a second connection block 52, the second connection block 52 being disposed on the pole assembly 20 to be electrically connected with the pole assembly 20; the safety part 53, the first connecting block 51 and the second connecting block 52 are connected respectively to the both ends of safety part 53, on guaranteeing that first connecting block 51 and second connecting block 52 can connect the basis of first adaptor 40 and utmost point post subassembly 20 respectively electrically to when second adaptor 50 electric current is too big, the safety part 53 can break off, thereby realizes the protection to the battery.

The fuse 53 may be a fuse, or the fuse 53 may be a structure having a relatively small cross-sectional area, for example, a solid structure with material removed, so that in the case of a relatively high current, the fuse 53 can be fused to break the electrical connection between the pole assembly 20 and the battery housing 10.

In some embodiments, the first connection block 51 may be integrally disposed in the insulating member 30 such that the first connection block 51 is electrically connected to the first coupling member 40, and at least a portion of the first coupling member 40 may be located in the insulating member 30, so that the first connection block 51 and the first coupling member 40 may be securely fixed to the battery case 10. And the safety part 53 may protrude from the insulating member 30 to be electrically connected to the second connecting block 52, in which case the second connecting block 52 may be directly connected to the pole assembly 20.

It should be noted that the first connecting block 51 and the first connecting member 40 may only abut against each other, or the first connecting block 51 and the first connecting member 40 may be welded to each other. The second connecting block 52 may be welded to the pole assembly 20. Both ends of the safety part 53 may be welded to the first connection block 51 and the second connection block 52, respectively.

In one embodiment, as shown in fig. 4, the second adaptor 50 includes: a first section 54, at least a portion of the first section 54 being disposed within the insulator 30 and electrically connected to the first transition piece 40; a second section 55, the second section 55 is connected to an end of the first section 54 facing away from the first adapter 40, and is directly connected to the pole assembly 20; the area of the cross section of the first section 54 is smaller than that of the cross section of the second section 55, so that the first section 54 can be reliably contacted with the first adapter 40 on the basis of ensuring that the structure of the second adapter 50 is not too large, and the second section 55 can be reliably contacted with the pole assembly 20, so that the second adapter 50 can be reliably electrically connected with the first adapter 40 and the pole assembly 20.

In one embodiment, as shown in connection with fig. 2-4, the first section 54 may be a first cylindrical structure, the second section 55 may be a second cylindrical structure, the first cylindrical structure interfaces with the first transition piece 40, and the circumferential exterior of the second cylindrical structure may be in contact with the pole assembly 20. Alternatively, the lower surface of the second cylindrical structure may be in contact with the pole assembly 20.

In one embodiment, the first section 54 and the second section 55 may be integrally formed, which is simple and easy to manufacture, and ensures reliable structural strength.

In one embodiment, as shown in fig. 6, the first adapter 40 includes an elastic part 41, and the elastic part 41 is in contact with the battery case 10, so that not only can the elastic part 41 be ensured to be in reliable contact with the battery case 10, but also the elastic part 41 can be buffered for the connection of the first adapter 40 with the battery case 10, thereby ensuring that the contact between the elastic part 41 and the battery case 10 is more stable, and the capability of resisting vibration can be increased.

As shown in fig. 6, the first adapter 40 may have a substantially U-shaped structure, such that the first adapter 40 includes an elastic portion 41, and the elastic portion 41 is similar to a spring. The elastic portion 41 may also be a spring-like structure, and the specific structure of the elastic portion 41 is not limited herein and may be selected according to actual requirements.

In one embodiment, as shown in fig. 7, the first connecting member 40 may be provided with a resistor 45, and the resistor 45 may be in contact with the battery case 10, so that a large current may be prevented from being generated between the first connecting member 40 and the battery case 10, thereby improving safety of the first connecting member 40 and the battery case 10. The resistor 45 may be a mixture of polyphenylene sulfide (PPS) and a conductive agent, the conductive agent may be high in composition, and the conductive agent may be metal powder. The resistor 45 may be a mixture of polyethylene terephthalate (PET) and a conductive agent, the resistor 45 may be a mixture of polytrimethylene terephthalate (PTT) and a conductive agent, the resistor 45 may be a mixture of polypropylene (PP) and a conductive agent, and the resistor 45 may be a mixture of Polycarbonate (PC) and a conductive agent, and the selection of the resistor 45 is not limited herein and may be selected according to actual requirements.

In one embodiment, as shown in fig. 8, the second adaptor 50 includes: the connecting block 56 is arranged on the pole assembly 20, and the connecting block 56 is electrically connected with the pole assembly 20; the two ends of the safety part 53 are respectively electrically connected with the first adaptor 40 and the connecting block 56, so that the pole assembly 20 can be electrically connected with the battery shell 10 through the first adaptor 40 and the second adaptor 50.

In one embodiment, as shown in FIG. 4, the first adapter 40 is provided with a cavity 42; the cavity 42 is provided on the side of the first adapter 40 facing the battery housing 10, so that the weight of the first adapter 40 can be reduced and a reliable contact surface between the first adapter 40 and the second adapter 50 can be ensured.

The first adapter 40 is provided with a cavity 42. the cavity 42 may be a material removal in the middle of a solid structure. Alternatively, the first adapter 40 may be formed by bending a sheet-like structure, so that the cavity 42 is formed on the side of the first adapter 40 facing the battery case 10.

In one embodiment, as shown in fig. 4, the first adapter 40 includes: a burring part 43, the burring part 43 being in contact with the battery case 10; the protruding portion 44 is arranged on the side of the flanging portion 43 away from the battery shell 10, and the protruding portion 44 is in contact with the second adaptor 50. The burring 43 ensures a sufficient contact area with the battery case 10 and prevents the first adaptor 40 from damaging the battery case 10, while the protruding portion 44 makes a reliable contact with the second adaptor 50 and provides a reliable contact strength between the protruding portion 44 and the second adaptor 50.

As shown in fig. 4, the hem 43 forms the cavity 42, and the protrusion 44 is provided on a side of the hem 43 facing away from the cavity 42.

Further, the recess 14 is directly opposed to the cavity 42, and at least a portion of the burring part 43 is directly opposed to the recess 14, so that the weight of the first adapter 40 can be reduced while ensuring a sufficient contact area between the burring part 43 and the battery case 10.

In one embodiment, the burring part 43 is welded to the battery case 10, thereby ensuring a reliable coupling strength between the burring part 43 and the battery case 10.

In some embodiments, the burring part 43 and the battery case 10 may be in direct contact.

In one embodiment, as shown in fig. 4, the side of the battery case 10 facing the flanging part 43 is provided with the groove 14, the groove 14 is directly opposite to the flanging part 43, and the arrangement of the groove 14 can disperse the contact area of the flanging part 43 and the battery case 10, so as to avoid the problem that the contact area of the flanging part 43 and the battery case 10 is concentrated at one position to cause large deformation of the battery case 10. And the groove 14 may reinforce the structure of the battery case 10.

As shown in fig. 4, the cavity 42 formed by the flange portion 43 is directly opposite to the groove 14, and the flange portion 43 can contact the surface of the cavity 42 where the port is located, so that the contact area between the flange portion 43 and the battery case 10 is relatively small, thereby avoiding the problem of causing large deformation of the battery case 10. The cavity 42 may be a circular cavity and the groove 14 may also be a generally circular groove.

In one embodiment, as shown in fig. 1 to 3, at least a portion of the insulating member 30 is located outside the battery case 10, and the connection surface 21 of the pole assembly 20 for connection with the bus bar 1 is disposed to protrude from the insulating member 30, thereby facilitating reliable connection of the bus bar 1 with the connection surface 21.

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 battery includes a cell and an electrolyte, and is 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, and the insulating member 30 may be injection molded to the first transfer member 40. The insulator 30 may be made of plastic, and the insulator 30 may 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 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, 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. At least portions of the first adapter 40 and the second adapter 50 may be disposed within the insulator 30 within the receiving slot 24.

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 as to avoid the problem of large volume of the insulating member 30 on the basis of ensuring the insulating member 30 to be 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 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 fig. 1 to 3 in conjunction, the positioning portion 32 is provided on the battery case 10, the surface of the positioning portion 32 in contact with the busbar 1 is parallel to the surface of the battery case 10 where the pole assembly 20 is provided, and the connecting 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 busbar 1 in contact with the pole assembly 20 and the other surface in contact with 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; 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 case 10 includes two opposite first surfaces 11 and four second surfaces 12 disposed around the first surfaces 11, i.e. the battery case 10 has an approximately rectangular structure, the area of the first surface 11 is larger than that of the second surfaces 12, and the pole structure is disposed on the first surface 11. Specifically, the pole assembly 20 is disposed on the first surface 11, and 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 be ensured to 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 group battery, including foretell battery.

The utility model discloses a group battery of embodiment includes the battery, and the battery includes battery housing 10, the first adaptor 40 of utmost point post structure and second adaptor 50, and utmost point post structure is connected with battery housing 10 electricity through first adaptor 40 and second adaptor 50 to can make battery housing 10 can regard as a current potential collection structure of battery, with this convenient subsequent connection, thereby improve the performance of group battery. By arranging the second adaptor 50 and the first adaptor 40 separately, the pole structure can be conveniently electrically connected with the battery case 10 through the first adaptor 40 and the second adaptor 50.

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 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 (12)

1. A battery, comprising:

a battery case (10);

a pole structure disposed in the battery case (10);

a first adapter (40), at least a portion of the first adapter (40) being disposed within the pole structure and electrically connected to the battery housing (10);

a second adaptor (50), wherein the second adaptor (50) is arranged separately from the first adaptor (40), and the second adaptor (50) is electrically connected with the first adaptor (40), so that the battery shell (10) is electrically connected with the second adaptor (50) through the first adaptor (40);

the second adapter piece (50) is electrically connected with the pole structure, so that the battery shell (10) is electrically connected with the pole structure.

2. The battery according to claim 1, wherein the area of the first adapter (40) in contact with the battery case (10) is larger than the area of the first adapter (40) in contact with the second adapter (50).

3. The battery according to claim 1, characterized in that the first adapter (40) is provided with a cavity (42);

wherein the cavity (42) is arranged on a side of the first adapter (40) facing the battery housing (10).

4. The battery according to claim 1, wherein the first adapter (40) comprises:

a burring (43), the burring (43) being in contact with the battery case (10);

the protruding portion (44) is arranged on one side, away from the battery shell (10), of the flanging portion (43), and the protruding portion (44) is in contact with the second adaptor (50).

5. Battery according to claim 4, characterized in that the side of the battery housing (10) facing the flanging portion (43) is provided with a recess (14), that the side of the first adapter (40) facing the battery housing (10) is provided with a cavity (42), that the recess (14) is directly opposite the cavity (42), and that at least a part of the flanging portion (43) is directly opposite the recess (14).

6. The battery according to claim 1, wherein the first adapter (40) comprises an elastic portion (41), the elastic portion (41) being in contact with the battery case (10).

7. The battery of any of claims 1-6, wherein the pole structure comprises:

an insulator (30), the insulator (30) being provided to the battery case (10);

a pole assembly (20), the pole assembly (20) being disposed on the insulator (30) such that the pole assembly (20) is disposed on the battery case (10) through the insulator (30);

wherein at least part of the first adapter piece (40) is arranged in the insulating piece (30), and the second adapter piece (50) is electrically connected with the pole assembly (20).

8. The battery according to claim 7, characterized in that at least part of the second adaptor (50) is arranged inside the insulating member (30).

9. The battery according to claim 8, characterized in that the second adaptor (50) comprises:

a first connecting block (51), at least part of the first connecting block (51) is arranged in the insulating piece (30) and is electrically connected with the first adapter (40);

the second connecting block (52), the second connecting block (52) is arranged on the pole assembly (20), and the second connecting block (52) is electrically connected with the pole assembly (20);

and two ends of the safety part (53) are respectively connected with the first connecting block (51) and the second connecting block (52).

10. The battery according to claim 8, characterized in that the second adaptor (50) comprises:

a first segment (54), at least a portion of the first segment (54) being disposed within the insulator (30) and electrically connected to the first transition piece (40);

a second section (55), wherein the second section (55) is connected to the end of the first section (54) facing away from the first adapter (40) and is directly connected with the pole assembly (20);

wherein the area of the cross-section of the first section (54) is smaller than the area of the cross-section of the second section (55).

11. The battery according to claim 7, characterized in that said second adaptor (50) comprises:

a connection block (56), wherein the connection block (56) is arranged on the pole assembly (20), and the connection block (56) is electrically connected with the pole assembly (20);

and two ends of the safety part (53) are respectively and electrically connected with the first adapter (40) and the connecting block (56).

12. A battery pack characterized by comprising the battery according to any one of claims 1 to 11.

Images