CN219203331U

CN219203331U - Battery pack

Info

Publication number: CN219203331U
Application number: CN202320081625.XU
Authority: CN
Inventors: 赵冬
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-06-16
Anticipated expiration: 2033-01-12

Abstract

The utility model relates to the technical field of batteries, and provides a battery pack, which comprises: a body structure; the output end protection support is connected to the body structure and comprises a clamping part and an elastic part; the output end plug-in components, the output end plug-in components set up on the output end protection support, joint portion joint is in the first side of output end plug-in components, and the elasticity portion supports to press in the second side that output end plug-in components are relative with first side to can be fixed in output end protection support on with the output end plug-in components is stable, avoid the output end plug-in components to rock for output end protection support takes place, thereby improved the safe performance of battery package.

Description

Battery pack

Technical Field

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

Background

In the related art, the output end protection support of the wire harness plate assembly is used for protecting the output end of the wire harness plate assembly, and the stability of the output end protection support and the output end protection support of the wire harness plate assembly is not good due to the limitation of the connection mode between the output end and the output end protection support of the wire harness plate assembly.

Disclosure of Invention

The utility model provides a battery pack to improve the service performance of the battery pack.

The present utility model provides a battery pack, comprising:

a body structure;

the output end protection support is connected to the body structure and comprises a clamping part and an elastic part;

the output end plug-in components, output end plug-in components set up on the output end protection support, and joint portion joint is in the first side of output end plug-in components, and the elasticity portion supports and presses in the second side that output end plug-in components is relative with first side to be fixed in output end protection support on with the output end plug-in components.

The battery pack comprises a body structure, an output end protection support and an output end plug-in, wherein the output end protection support is connected to the body structure, the output end protection support comprises a clamping part and an elastic part, the clamping part is clamped on a first side of the output end plug-in, and the elastic part is pressed against a second side, opposite to the first side, of the output end plug-in, so that the output end plug-in can be stably fixed on the output end protection support, the output end plug-in is prevented from shaking relative to the output end protection support, and the safety use performance of the battery pack is improved.

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 have different arrangements as known in the art. Furthermore, in the drawings, like reference numerals designate identical or similar parts throughout the several views.

Wherein:

fig. 1 is a partial schematic structure of a battery pack according to an exemplary embodiment;

fig. 2 is a partially exploded structural view of a battery pack according to an exemplary embodiment;

fig. 3 is a partially exploded view of a battery pack according to an exemplary embodiment.

The reference numerals are explained as follows:

20. the output end protects the support; 21. a clamping part; 22. an elastic part; 23. a through hole; 24. a first support surface; 25. a second support surface; 26. an accommodation space; 30. an output end plug-in; 31. a first surface; 32. a second surface; 33. a body; 34. a reinforcing plate; 40. end plates.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying 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, 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 unless explicitly specified or limited otherwise; the term "plurality" refers to two or more than two; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the/the" object or "an" object are likewise intended to mean one of a possible plurality of such objects.

Unless specified or indicated otherwise, the terms "connected," "fixed," and the like are to be construed broadly and are, for example, capable of being fixedly connected, detachably connected, or integrally connected, electrically connected, or signally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the terms in the present disclosure may be understood by those skilled in the art according to the specific circumstances.

Further, in the description of the present disclosure, it should be understood that the terms "upper", "lower", "inner", "outer", and the like, as described in the example embodiments of the present disclosure, are described with the angles shown in the drawings, and should not be construed as limiting the example embodiments of the present disclosure. It will also be understood that in the context of an element or feature being connected to another element(s) "upper," "lower," or "inner," "outer," it can be directly connected to the other element(s) "upper," "lower," or "inner," "outer," or indirectly connected to the other element(s) "upper," "lower," or "inner," "outer" via intervening elements.

An embodiment of the present utility model provides a battery pack, referring to fig. 1 to 3, the battery pack includes: a body structure; the output end protection support 20, the output end protection support 20 is connected to the body structure, and the output end protection support 20 comprises a clamping part 21 and an elastic part 22; the output end plug-in 30, the output end plug-in 30 is disposed on the output end protection support 20, the clamping portion 21 is clamped on a first side of the output end plug-in 30, and the elastic portion 22 abuts against a second side of the output end plug-in 30 opposite to the first side, so as to fix the output end plug-in 30 on the output end protection support 20.

The battery pack according to an embodiment of the utility model includes a body structure, an output end protection support 20 and an output end plug-in unit 30, wherein the output end protection support 20 is connected to the body structure, the output end protection support 20 includes a clamping portion 21 and an elastic portion 22, the clamping portion 21 is clamped on a first side of the output end plug-in unit 30, and the elastic portion 22 is pressed against a second side of the output end plug-in unit 30 opposite to the first side, so that the output end plug-in unit 30 can be stably fixed on the output end protection support 20, and shaking of the output end plug-in unit 30 relative to the output end protection support 20 is avoided, thereby improving safety performance of the battery pack.

It should be noted that, the output end protection support 20 of the battery pack is used for protecting the output end and the signal acquisition output end of the conductive strip, so as to ensure the reliability of the output end, and the output end plug-in 30 in this embodiment may be a high voltage output end plug-in, or the output end plug-in 30 may be a low voltage output end plug-in.

The output end protection support 20 comprises a clamping part 21 and an elastic part 22, wherein the clamping part 21 is clamped on the first side of the output end plug-in 30, the elastic part 22 is propped against the second side of the output end plug-in 30 opposite to the first side, namely, the elastic part 22 can provide an upward force for the output end plug-in 30, and at the moment, the clamping part 21 is clamped on the first side of the output end plug-in 30, so that the clamping of the clamping part 21 to the output end plug-in 30 can be firmer, the connection stability between the output end plug-in 30 and the output end protection support 20 is improved, the shaking of the output end plug-in 30 relative to the output end protection support 20 is avoided, and the safety use performance of the battery pack is improved.

In one embodiment, as shown in fig. 2, the output end insert 30 includes a first surface 31 and a second surface 32 opposite to each other, the clamping portion 21 is clamped to the first surface 31, and the elastic portion 22 abuts against the second surface 32, so that the clamping portion 21 and the elastic portion 22 can stably connect the output end insert 30 to the output end protection support 20, and the problem that the output end insert 30 shakes is avoided.

The output insert 30 comprises a first surface 31 and a second surface 32 opposite to each other, and the resilient portion 22 is pressed against the second surface 32, i.e. after the output insert 30 has been mounted on the output protection support 20, the resilient portion 22 is deformed, thereby providing a force to the output insert 30, which enables a reliable fixation of the output protection support 20 to the output insert 30.

In one embodiment, as shown in fig. 2 and 3, the number of the clamping portions 21 is plural, and at least two clamping portions 21 are clamped to the output end protection support 20 by two opposite sides of the output end protection support 20, so that the at least two clamping portions 21 can fasten the output end insert 30, and further, the output end insert 30 can be ensured to be firmly connected to the output end protection support 20.

The number of the two pairs of the clamping parts 21 can be four, and the two pairs of the clamping parts 21 can clamp the output end plug-in 30, so that the output end plug-in 30 can be reliably fixed on the output end protection support 20.

In one embodiment, as shown in fig. 2, the output end protecting support 20 is provided with a through hole 23, the elastic portion 22 is located in the through hole 23, and after the output end insert 30 is separated from the output end protecting support 20, the elastic portion 22 protrudes out of the through hole 23, so that after the output end insert 30 is mounted on the output end protecting support 20, the output end insert 30 can be made to press the elastic portion 22, and then the elastic portion 22 is pressed into the through hole 23, so that the elastic portion 22 can provide an upward force to the output end insert 30, and further, the clamping portion 21 can reliably fix the output end insert 30.

In one embodiment, the elastic portion 22 is a cantilever, and the elastic portion 22 is a buckle, so that the elastic portion 22 is easy to deform, and after the output end insert 30 is mounted on the output end protection support 20, the elastic portion 22 can reliably press against the output end insert 30, so that the clamping portion 21 can reliably fix the output end insert 30.

As shown in fig. 2, one end of the elastic portion 22 is connected to the through hole 23, and the other end of the elastic portion 22 is a free end, so that the elastic portion 22 forms a cantilever member, and a side of the elastic portion 22 facing the output end insert 30 is provided with a buckle, so that the elastic portion 22 presses against the output end insert 30, and the clamping portion 21 is reliably fixed to the output end insert 30.

In one embodiment, as shown in fig. 2 and 3, the output end insert 30 includes a body 33 and a reinforcing plate 34, the body 33 is connected to the reinforcing plate 34, the reinforcing plate 34 is disposed on the output end protecting support 20, the clamping portion 21 is clamped to the reinforcing plate 34, and the elastic portion 22 abuts against the reinforcing plate 34, so that the output end insert 30 can be fixed on the output end protecting support 20 through the reinforcing plate 34, and the output end protecting support 20 can be prevented from damaging the body 33, thereby improving the connection stability of the output end insert 30.

The reinforcing plate 34 includes opposite first and

second surfaces

31 and 32, and the elastic portion 22 and the clamping portion 21 achieve fixing of the reinforcing plate 34.

In one embodiment, as shown in fig. 2, the side of the output protection support 20 facing the output end insert 30 has a first supporting surface 24 and a second supporting surface 25, where a height difference exists between the first supporting surface 24 and the second supporting surface 25, the first supporting surface 24 is located below the second supporting surface 25, and the elastic portion 22 is disposed on the second supporting surface 25, so that the output end insert 30 can be reliably fixed to the output end protection support 20, and the contact surface between the output end insert 30 and the output end protection support 20 can be reduced, thereby avoiding a great amount of force from being transmitted to the output end insert 30.

In one embodiment, as shown in fig. 2, a receiving space 26 is formed on a side of the output end protection support 20 facing the output end insert 30, the first supporting surface 24 and the second supporting surface 25 form a bottom wall of the receiving space 26, and the clamping portion 21 extends from a side wall of the receiving space 26; wherein, output plug-in components 30 are located accommodation space 26 to can make things convenient for output plug-in components 30 to install in accommodation space 26, can form the location to output plug-in components 30, make things convenient for the installation of output plug-in components 30, can improve the installation effectiveness of output plug-in components 30 to a certain extent, and can improve the installation stability of output plug-in components 30.

In one embodiment, the first supporting surface 24 is spaced from the output end insert 30, and the other surface of the output end protecting support 20 opposite to the first supporting surface 24 is abutted against the body structure, so that the force transmitted from the body structure to the output end protecting support 20 can be reduced to be directly transmitted to the output end insert 30, and thus the output end insert 30 can be prevented from being damaged in structure due to external vibration, and the service life of the output end insert 30 is prolonged.

In one embodiment, the body structure includes the box, and output protection support 20 connects in the box, and the stability of box is stronger, can avoid to a certain extent that output protection support 20 receives external force impact, also can improve output protection support 20's connection stability, and then also can guarantee the stability of output plug-in components 30.

In one embodiment, as shown in fig. 1, the body structure includes a case and an end plate 40, the end plate 40 is located in the case, and the output protection support 20 is connected to the end plate 40, so that the output protection support 20 can be conveniently set, and the output protection support 20 can be conveniently set.

The output end protecting support 20 and the end plate 40 are of an integrally formed structure, so that the structure is simple, and the manufacturing efficiency of the output end protecting support 20 and the end plate 40 can be improved.

The output protector support 20 and the end plate 40 may be plastic materials and the output protector support 20 and the end plate 40 may be injection molded.

It should be noted that in some embodiments, it is not excluded that the output end shield support 20 and the end plate 40 may be two separate structures, and the output end shield support 20 and the end plate 40 may be detachably connected, for example, the output end shield support 20 may be clamped to the end plate 40.

In one embodiment, a plurality of single cells may be disposed in the case, and the plurality of single cells may be connected in series or in parallel, and the end plate 40 may be located at one side of the plurality of single cells, so as to form protection for the single cells.

The unit cell 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 stacked portion, wherein the stacked portion comprises a first pole piece, a separator and a second pole piece. When the first pole piece is a positive pole piece, the second pole piece is a negative pole piece. Wherein the polarities of the first pole piece and the second pole piece can be interchanged.

The single batteries are laminated batteries, so that the battery is convenient to group and long in length can be obtained through processing. Specifically, the battery cell is a laminated battery cell, and the battery cell is provided with a first pole piece, a second pole piece opposite to the first pole piece and a diaphragm sheet arranged between the first pole piece and the second pole piece, which are mutually laminated, so that a plurality of pairs of the first pole piece and the second pole piece are stacked to form the laminated battery cell.

Alternatively, the unit cell may be a wound cell, that is, a first pole piece, a second pole piece opposite to the first pole piece, and a diaphragm sheet disposed between the first pole piece and the second pole piece are wound to obtain a wound cell.

The single battery can be square battery, namely the single battery can be a quadrangular battery, the quadrangular battery mainly refers to a prismatic shape, whether each side of the prismatic is a straight line with strict meaning is not strictly limited, and corners between sides are not necessarily right angles and can be arc transition. In certain embodiments, it is not excluded that the battery may be a cylindrical battery.

In one embodiment, the length of the single cell is a,400mm < a > 2800mm, the width of the single cell is b, the height of the single cell is c,2b < a > 80b, and/or 0.5c < b > 20c.

Further, b is more than or equal to 80mm and less than or equal to 200mm, c is more than or equal to 10mm and less than or equal to 100mm.

Preferably, 4 b.ltoreq.a.ltoreq.25b, and/or 2 c.ltoreq.b.ltoreq.10c.

The ratio of the length to the width of the unit cell is large, and further, the ratio of the width to the height of the unit cell is large under the condition that the sufficient energy density is ensured.

In one embodiment, the length of the single battery is a, the width of the single battery is b, and a is more than or equal to 4b and less than or equal to 7b, namely the ratio of the length to the width of the single battery in the embodiment is larger, so that the energy density of the electric single battery is increased, and the battery pack is conveniently formed.

In one embodiment, the height of the single battery is c, b is less than or equal to 3c and less than or equal to 7c, the ratio of the width to the height of the single battery is large, and the single battery is convenient to form under the condition of ensuring enough energy density.

Alternatively, the length of the unit cells may be 800mm to 1800mm, the width of the unit cells may be 80mm to 180mm, and the height of the unit cells may be 15mm to 35mm.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the utility model 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. The specification and example embodiments are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A battery pack, comprising:

a body structure;

the output end protection support (20), the output end protection support (20) is connected to the body structure, and the output end protection support (20) comprises a clamping part (21) and an elastic part (22);

the output end plug-in (30), output end plug-in (30) set up in on the output end protection support (20), joint portion (21) joint in the first side of output end plug-in (30), elasticity portion (22) support press in output end plug-in (30) with the second side that first side is relative, in order to with output end plug-in (30) are fixed in on the output end protection support (20).

2. The battery pack according to claim 1, wherein the output end insert (30) includes a first surface (31) and a second surface (32) opposite to each other, the clamping portion (21) is clamped to the first surface (31), and the elastic portion (22) is pressed against the second surface (32).

3. The battery pack according to claim 1, wherein the number of the clamping portions (21) is plural, and at least two of the clamping portions (21) are clamped to the output terminal insert (30) by opposite sides of the output terminal protection support (20).

4. The battery pack according to claim 1, wherein the output-side protecting support (20) is provided with a through hole (23), the elastic portion (22) is located in the through hole (23), and the elastic portion (22) protrudes out of the through hole (23) after the output-side plug-in (30) is separated from the output-side protecting support (20).

5. The battery pack according to claim 4, wherein the elastic portion (22) is a cantilever member, and the elastic portion (22) is a buckle.

6. The battery pack according to claim 1, wherein the output terminal insert (30) includes a body (33) and a reinforcing plate (34), the body (33) is connected to the reinforcing plate (34), the reinforcing plate (34) is disposed on the output terminal protection support (20), the clamping portion (21) is clamped to the reinforcing plate (34), and the elastic portion (22) is pressed against the reinforcing plate (34).

7. The battery pack according to claim 1, wherein a side of the output protection support (20) facing the output plug-in (30) has a first support surface (24) and a second support surface (25), a height difference is provided between the first support surface (24) and the second support surface (25), the first support surface (24) is located below the second support surface (25), and the elastic portion (22) is disposed on the second support surface (25).

8. The battery pack according to claim 7, wherein a receiving space (26) is formed at a side of the output terminal protection support (20) facing the output terminal insert (30), the first support surface (24) and the second support surface (25) form a bottom wall of the receiving space (26), and the clamping portion (21) extends from a side wall of the receiving space (26);

wherein the output insert (30) is located within the receiving space (26).

9. The battery pack of claim 7, wherein the first support surface (24) is spaced from the output end insert (30), and the opposite surface of the output end shield support (20) from the first support surface (24) abuts the body structure.

10. The battery pack of claim 1, wherein the body structure comprises a case to which the output port guard support (20) is connected.

11. The battery pack of claim 1, wherein the body structure includes a case and an end plate (40), the end plate (40) being located within the case, the output port guard support (20) being connected to the end plate (40).