CN215644855U

CN215644855U - Battery pack

Info

Publication number: CN215644855U
Application number: CN202122157103.7U
Authority: CN
Inventors: 赵冬; 孔繁明; 田瑞生
Original assignee: CALB Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-25
Anticipated expiration: 2031-09-07

Abstract

The utility model relates to the technical field of batteries, and provides a battery pack, which comprises: the box body is provided with a first connecting part; the output end protection support is provided with a second connecting part, and the first connecting part is clamped with the second connecting part; at least one of the first connecting part and the second connecting part comprises an elastic piece. The first connecting portion of output protection support is connected with the second connecting portion of box to fix output protection support on the box, through making at least one of first connecting portion and second connecting portion include the elastic component, thereby can conveniently realize the joint of first connecting portion and second connecting portion, under the prerequisite of guaranteeing output protection support high efficiency and installing on the box, also can guarantee the fixity ability of box to output protection support.

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 board assembly is used for protecting the output end of the wire harness board assembly. The output end protection support is fixed through interference fit with an end plate of the battery module.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery pack, which is convenient for connecting an output end protection support.

The present invention provides a battery pack, including:

the box body is provided with a first connecting part;

the output end protection support is provided with a second connecting part, and the first connecting part is clamped with the second connecting part;

at least one of the first connecting part and the second connecting part comprises an elastic piece.

The battery pack comprises a box body and an output end protection support, wherein a first connecting part of the output end protection support is connected with a second connecting part of the box body, so that the output end protection support is fixed on the box body, at least one of the first connecting part and the second connecting part comprises an elastic part, so that the first connecting part and the second connecting part can be conveniently clamped, and the fixing performance of the box body on the output end protection support can be ensured on the premise of ensuring that the output end protection support is efficiently arranged on the box body.

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 schematic diagram of a partially assembled structure of a battery pack according to an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating a partially exploded structure of a battery pack according to an exemplary embodiment;

fig. 3 is a schematic diagram illustrating a partial cross-sectional structure of a battery pack according to an exemplary embodiment;

FIG. 4 is a schematic diagram of a partially assembled structure of a battery pack according to another exemplary embodiment;

fig. 5 is a schematic diagram illustrating a partially exploded structure of a battery pack according to another exemplary embodiment;

fig. 6 is a schematic view of a partial cross-sectional structure of a battery pack according to another exemplary embodiment;

FIG. 7 is a schematic diagram illustrating a partial configuration of a housing of an alternate embodiment of a battery pack in accordance with an exemplary embodiment;

fig. 8 is a partial structural view of a case of another alternative embodiment of a battery pack according to an exemplary embodiment.

The reference numerals are explained below:

10. a box body; 11. a first connection portion; 14. a groove; 20. an output end protection support; 21. a second connecting portion; 30. a transition piece.

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 pack, referring to fig. 1 to 8, the battery pack includes: the box body 10 is provided with a first connecting part 11; the output end protection support 20 is provided with a second connecting part 21, and the first connecting part 11 is clamped with the second connecting part 21; at least one of the first connecting portion 11 and the second connecting portion 21 includes an elastic member.

The battery pack of one embodiment of the present invention comprises a case 10 and an output end protection support 20, wherein the case 10 comprises a frame, a dividing beam, a bottom plate, a reinforcing member, and the like, wherein the frame forms an accommodating space; the separation beam is arranged in the accommodating space to separate the accommodating space; the reinforcing member is mainly used for reinforcing the connection strength among the frame, the partition beam and the bottom plate. First connecting portion 11 of output protection support 20 is connected with the second connecting portion 21 of box 10 to protect support 20 to fix output on box 10, include the elastic component through making at least one of first connecting portion 11 and second connecting portion 21, thereby can conveniently realize the joint of first connecting portion 11 and second connecting portion 21, under the prerequisite of guaranteeing output protection support 20 high-efficient installation on box 10, also can guarantee box 10 to output protection support 20's fixity ability.

Specifically, first connecting portion 11 can be provided with the arch, and second connecting portion 21 can be provided with sunkenly, or first connecting portion 11 also can be provided with sunkenly, and second connecting portion 21 can be provided with the arch, realizes first connecting portion 11 and the joint of second connecting portion 21 through protruding and sunken block cooperation. Or first connecting portion 11 and second connecting portion 21 can be the arch, and protruding and bellied cooperation realizes first connecting portion 11 and the joint of second connecting portion 21. The protrusion may be a hook or the like. Since at least one of the first connecting portion 11 and the second connecting portion 21 includes the elastic member, the deformed assembly of the first connecting portion 11 and the second connecting portion 21 can be achieved, and the connection stability of the first connecting portion 11 and the second connecting portion 21 can be increased by the ability to restore the original state after the assembly is in place.

In one embodiment, one of the first and

second connection portions

11 and 21 includes an elastic member, and the other includes a rigid member or a plastic member. The rigid part or the plastic part is a component which cannot be deformed under the action of external force, or cannot be recovered after being deformed, or only slightly deforms, one of the first connecting part 11 and the second connecting part 21 is set to be the elastic part, and the other one is set to be the rigid part or the plastic part, so that the connection can be conveniently carried out, and the connection stability after the connection is in place can be ensured.

In one embodiment, the number of the first connecting portions 11 and the number of the second connecting portions 21 are at least two, and the at least two first connecting portions 11 and the at least two second connecting portions 21 are correspondingly arranged one by one and are respectively clamped, so that the stability of connection is ensured.

Specifically, the two sides of the output end protection support 20 may be provided with the second connecting portions 21, so that it is ensured that the output end protection support 20 is stably fixed to the case body 10, thereby preventing the output end protection support 20 from being loosened.

The battery pack further includes a plurality of batteries, and the plurality of batteries are disposed in the case 10. Wherein, a plurality of batteries can be installed in the case 10 after forming a battery module, and at this time, the battery module can include an end plate and a side plate for fixing the plurality of batteries, and in the related art, the output end protection support 20 is disposed on the end plate. Alternatively, a plurality of cells may be directly disposed in the case 10, i.e., without grouping the plurality of cells, and at this time, the end plates and the side plates may be removed. The output end protection support 20 in this embodiment is mounted on the box 10, and can be adapted to the above two different battery grouping modes to meet different mounting requirements.

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 arranged in the battery shell.

The battery pack further comprises a wire harness board assembly, a conductive piece is arranged on the wire harness board assembly, the conductive piece is provided with an output end for transmitting electric energy or electric signals to the outside, and the output end protection support 20 is used for protecting the output end and the signal acquisition output end of the conductive piece, so that the reliability of the output end is guaranteed.

In one embodiment, the first connection portion 11 is provided on at least one of the frame and the partition beam, thereby facilitating the connection of the output terminal protecting support 20 and ensuring the connection stability of the output terminal protecting support 20.

The partition beam partitions the accommodating space into a plurality of accommodating units, each accommodating unit can be used for accommodating a plurality of batteries, and in some embodiments, the condition that one accommodating unit accommodates one battery is not excluded. The cross-sectional areas of the plurality of containing units may be uniform, or the cross-sectional area of at least one of the plurality of containing units may be different from the others. In the present embodiment, the partition beam partitions the accommodating space into a plurality of identical accommodating units, each of which can accommodate at least two batteries therein.

It should be noted that the box 10 shown in fig. 1 to 8 may be a part of a frame or a part of a partition beam, and is not limited herein. The interior of the frame and the partition beam may be hollow so that when the housing 10 is provided with the groove 14, the groove 14 communicates with the interior intermediate chamber of the frame and the partition beam.

In one embodiment, at least one of the first connecting portion 11 and the second connecting portion 21 includes a spring, so that the first connecting portion 11 or the second connecting portion 21 can be deformed during the connection process, and can be restored after being connected in place, thereby ensuring the connection stability.

In one embodiment, the first connecting portions 11 and the second connecting portions 21 may be two, the two first connecting portions 11 are disposed on the box 10 at intervals, and the two second connecting portions 21 are disposed at two ends of the output-end protection support 20, in which case, the first connecting portions 11 may be elastic pieces, and the second connecting portions 21 may be protrusions, and the protrusions are clamped on the elastic pieces, so as to achieve the fixed connection.

In one embodiment, the first connection portion 11 may include a spring and a latch, as shown in fig. 7, and the second connection portion 21 may be a groove in which the latch may be inserted. Specifically, the output end protection support 20 pushes the spring to deform during the process of being installed in the box body 10, and the latch may be inserted into the groove when the output end protection support 20 is installed in place.

In one embodiment, as shown in fig. 2 and 5, the case 10 is provided with a groove 14, and at least a portion of the output-end protection support 20 is located in the groove 14, so as to ensure that the output-end protection support 20 is reliably connected to the case 10 and that the output-end protection support 20 does not occupy too much space of the battery pack. The groove 14 can limit the output end protection support 20 in the left and right directions, and the second connecting portion 21 is connected with the first connecting portion 11 in a clamping mode, so that the output end protection support 20 can be limited in the upper and lower directions, and the connection stability of the output end protection support 20 is guaranteed.

In one embodiment, as shown in fig. 8, the first connection portion 11 may be disposed on the plane of the port of the recess 14 of the casing 10, and a portion of the output-side protection holder 20 is located in the recess 14, such that the second connection portion 21 of the output-side protection holder 20 is engaged with the first connection portion 11.

In one embodiment, as shown in fig. 2 and 7, the first connecting portion 11 is disposed in the groove 14, that is, the second connecting portion 21 of the output-end protection support 20 is located in the groove 14 and is engaged with the first connecting portion 11, thereby ensuring the stability of the connection. The first connection portion 11 is disposed in the groove 14, which can reduce the space occupation and facilitate the molding, and can reduce the risk of the external member colliding against the first connection portion 11, increasing the reliability.

In one embodiment, the first connecting portion 11 is a spring, and the second connecting portion 21 is a protrusion or a groove, so as to ensure reliable connection between the first connecting portion 11 and the second connecting portion 21. The output end protection support 20 pushes the elastic sheet to deform in the process of being installed in the box body 10, so that the elastic sheet can be matched with the protrusion or the groove.

Specifically, the first connecting portion 11 is a spring, and the spring may be a plastic piece or a metal piece. Typically, the output end protection support 20 is a plastic part in order to ensure that the output end protection support 20 is insulated when connected to a conductive member. And the case 10 may be a metal member in order to secure sufficient strength. When the elastic sheet is a plastic member, the elastic sheet may be fused and fixed when the case 10 is formed, or a third member may be used to mount the elastic sheet on the case 10. When the elastic sheet is a metal sheet, the elastic sheet may be integrally formed with the box body 10, and it is certainly not excluded to mount the elastic sheet on the box body 10 by using a third component.

In one embodiment, the first connection portion 11 is integrally formed with the case 10, thereby securing structural strength. Specifically, the box 10 may include a metal material, and the first connection portion 11 may be a metal spring, and in the embodiment shown in fig. 1 to 4, the first connection portion 11 and the box 10 may be integrally formed.

In one embodiment, as shown in fig. 4 to 6, a transition piece 30 is provided on the box 10, and the first connecting portion 11 is provided on the transition piece 30, so that the structure of the first connecting portion 11 can be selected in a wider range, which is beneficial to adapting to different second connecting portions 21.

Specifically, as shown in fig. 5, the first connection portion 11 is formed on the transition piece 30, and the transition piece 30 is mounted on the box body 10, so that the output-end protection holder 20 can be directly clamped on the transition piece 30 when the output-end protection holder 20 is mounted.

In some embodiments, the transition piece 30 may be disposed in the plane of the port of the recess 14 of the housing 10, with a portion of the output end shield support 20 being located within the recess 14.

In some embodiments, the transition piece 30 may be disposed within the recess 14 of the case 10.

In one embodiment, the first connecting portion 11 is integrally formed with the transition piece 30, which is not only simple to form, but also ensures structural strength.

In some embodiments, the first connection portion 11 and the transition piece 30 may be two separate structures, i.e., the first connection portion 11 and the transition piece 30 are connected after the completion of the two structures.

In one embodiment, the transition piece 30 is removably connected to the housing 10, thereby facilitating replacement of the transition piece 30. Transition piece 30 may be snapped, glued, or otherwise attached to cassette 10 with fasteners.

In one embodiment, the transition piece 30 and the box 10 may be welded. Alternatively, the transition piece 30 is riveted to the case 10, thereby securing the stability of the connection.

According to the battery pack, the output end protection support 20 can be clamped in the groove 14 of the box body 10 along the height direction, the output end protection support 20 is installed in place by utilizing the deformation of the first connecting part 11 on the box body 10, after the output end protection support is installed in place, the first connecting part 11 is restored to the original state, and the top of the first connecting part 11 is abutted against the second connecting part 21 of the output end protection support 20, so that the firm matching of the first connecting part and the second connecting part is realized. The fixed connection of the output-side protective support 20 to the housing 10 is achieved with a minimum of parts.

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. 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

1. A battery pack, comprising:

the box body (10), wherein a first connecting part (11) is arranged on the box body (10);

the output end protection support (20), a second connecting part (21) is arranged on the output end protection support (20), and the first connecting part (11) is clamped with the second connecting part (21);

wherein at least one of the first connecting portion (11) and the second connecting portion (21) comprises an elastic member.

2. The battery pack according to claim 1, wherein the case (10) comprises:

a frame formed with an accommodation space;

a partition beam disposed in the accommodation space to partition the accommodation space;

wherein the first connection portion (11) is provided on at least one of the frame and the partition beam.

3. The battery pack according to claim 1 or 2, wherein at least one of the first connection portion (11) and the second connection portion (21) comprises a spring piece.

4. A battery pack, as in claim 3, characterized in that the case (10) is provided with a recess (14), at least part of the output-end protection seat (20) being located in the recess (14).

5. Battery pack according to claim 4, characterized in that the first connection portion (11) is arranged in the recess (14).

6. The battery pack according to claim 3, wherein the first connecting portion (11) is a spring plate, and the second connecting portion (21) is a protrusion or a groove.

7. The battery pack according to claim 1 or 2, wherein a transition piece (30) is provided on the case (10), and the first connecting portion (11) is provided on the transition piece (30).

8. Battery pack according to claim 7, characterized in that the first connection portion (11) is integrally formed with the transition piece (30).

9. The battery pack according to claim 7, wherein the transition piece (30) is detachably connected to the case (10); or the transition piece (30) is riveted with the box body (10).

10. The battery pack according to claim 1 or 2, wherein the first connecting portion (11) is integrally formed with the case (10).