CN216850165U

CN216850165U - Battery pack

Info

Publication number: CN216850165U
Application number: CN202220579298.6U
Authority: CN
Inventors: 赵冬
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-06-28
Anticipated expiration: 2032-03-16

Abstract

The utility model relates to a battery technology field provides a battery pack, including battery box and battery, the battery sets up in the battery box, and the battery box includes: a main body, a battery is arranged on the main body; the limiting piece is connected with the main body and is connected with the battery; the cover plate is connected with the main body and connected with the limiting piece. The battery box body comprises a main body, a limiting part and a cover plate, the main body and the cover plate realize the sealing of the battery, and the limiting part is connected with the main body, the battery and the cover plate, so that the battery can be reliably fixed in the battery box body, the problems of shaking and the like of the battery are avoided, and the service performance of the battery pack is improved.

Description

Battery pack

Technical Field

The utility model relates to a battery technology field especially relates to a battery package.

Background

In the related art, the battery in the battery pack may be loosened after a long-term use, thereby causing problems such as displacement or shaking, and thus causing danger.

SUMMERY OF THE UTILITY MODEL

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

The utility model provides a battery pack, including battery box and battery, the battery sets up in the battery box, and the battery box includes:

a main body, a battery disposed in the main body;

the limiting piece is connected with the main body and is connected with the battery;

the cover plate is connected with the main body and connected with the limiting piece.

The utility model discloses battery package includes battery box and battery, and the battery sets up in the battery box. The battery box body comprises a main body, a limiting part and a cover plate, the main body and the cover plate are sealed with a battery, and the limiting part is connected with the main body, the battery and the cover plate, so that the battery can be reliably fixed in the battery box body, the problem that the battery shakes and the like is avoided, and the 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 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 view illustrating an assembled structure of a battery pack according to an exemplary embodiment;

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

The reference numerals are explained below:

10. a battery case; 11. a main body; 111. a base plate; 112. a frame; 113. a partition beam; 12. a limiting member; 13. a cover plate; 14. a fastener; 15. a bolt; 20. a battery.

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, please refer to fig. 1 and fig. 2, the battery pack includes: battery box 10 and battery 20, battery 20 sets up in battery box 10, and battery box 10 includes: a main body 11, a battery 20 is arranged on the main body 11; a stopper 12, the stopper 12 being connected to the main body 11 and connected to the battery 20; and the cover plate 13 is connected with the main body 11 and the limiting piece 12.

The utility model discloses a battery package of an embodiment includes battery box 10 and battery 20, and battery 20 sets up in battery box 10. The battery box 10 comprises a main body 11, a limiting piece 12 and a cover plate 13, the main body 11 and the cover plate 13 realize the sealing of the battery 20, and the limiting piece 12 is connected with the main body 11, the battery 20 and the cover plate 13, so that the battery 20 can be reliably fixed in the battery box 10, the problems of shaking and the like of the battery 20 are avoided, and the service performance of the battery pack is improved.

It should be noted that the limiting member 12 is connected to the main body 11 and connected to the battery 20, so that the limiting member 12 fixes the battery 20 and reduces the shaking of the upper portion of the battery 20. The cover plate 13 is connected with the main body 11 and connected with the limiting piece 12, and the limiting piece 12 can fix the cover plate 13, so that the cover plate 13 is prevented from vibrating, noise is reduced, and the safety performance of the battery pack is improved.

The battery pack includes a plurality of batteries 20 including cells and an electrolyte, 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.

A plurality of batteries may be formed into a battery module and then disposed in the battery case 10, and the plurality of batteries may be fixed by end plates and side plates. A plurality of cells may be directly provided in the battery case 10, i.e., without grouping the plurality of cells, and at this time, the end plates and the side plates may be removed.

In one embodiment, the position-limiting member 12 is bonded to the battery 20, so that the position-limiting member 12 can be reliably fixed to the battery 20, thereby reducing the shaking of the upper portion of the battery 20. A heat conductive adhesive may be disposed between the limiting member 12 and the battery 20, so that the battery 20 transfers heat to the limiting member 12 and the battery case 10 performs heat diffusion. The limiting member 12 and the main body 11 may be non-detachably connected, or the limiting member 12 and the main body 11 may be detachably connected.

The position limiting member 12 and the main body 11 may be clamped, or the position limiting member 12 and the main body 11 may be connected by a fastening member, which may be a bolt 15. Referring to fig. 2, the limiting member 12 and the main body 11 may be connected by a plurality of fasteners, and further, the limiting member 12 and the main body 11 may be connected by a plurality of bolts 15. The bolt 15 can be used in cooperation with structures such as a gasket, and the like, and is not limited here and can be selected according to actual needs.

In some embodiments, the limiting member 12 and the battery 20 may be clamped, so that the limiting member 12 can be conveniently detached on the basis of ensuring the reliable connection between the limiting member 12 and the battery 20. The stopper 12 is detachably connected to the main body 11, so that the stopper 12 can be detached.

The limiting part 12 and the battery 20 can be clamped through a protrusion and groove structure, or the limiting part 12 and the battery 20 can be clamped through a hook and a hook structure, and the limiting part and the battery are not limited here and can be selected according to actual requirements.

In one embodiment, the cover plate 13 is detachably connected to the limiting member 12, so that the cover plate 13 can be detached to facilitate subsequent maintenance of the battery 20.

In one embodiment, the cover plate 13 is clamped to the position-limiting member 12, or the cover plate 13 and the position-limiting member 12 are connected by a fastening member 14, so that the cover plate 13 and the position-limiting member 12 can be easily disassembled.

In one embodiment, the fastening member 14 may be connected to the middle portion of the limiting member 12, that is, the fastening member 14 passes through the cover plate 13 to be connected to the middle portion of the limiting member 12, so as to ensure the stability of the connection and not to damage the limiting member 12 easily.

As shown in fig. 1 and 2, the cover plate 13 and the position-limiting member 12 may be connected by one or more fasteners 14, and the fasteners 14 may be screws, bolts, keys, etc.

The cover plate 13 and the limiting part 12 can be clamped through the structure of the protrusion and the groove, or the cover plate 13 and the limiting part 12 can be clamped through the structure of the hook and the hook, and the limitation is not made here, and the selection can be performed according to actual requirements.

In one embodiment, the battery 20 is connected to the main body 11, so as to further improve the stability of the battery 20, and thus the battery 20 is stably disposed in the battery case 10 by the cooperation of the main body 11 and the stopper 12.

In one embodiment, the battery 20 is bonded to the main body 11, which not only facilitates installation, but also improves connection stability of the battery 20 to the main body 11. A heat conducting glue may be disposed between the battery 20 and the main body 11, so that the battery 20 transfers heat to the main body 11 to realize rapid heat diffusion, and the battery 20 can operate for a long time.

In one embodiment, as shown in fig. 1 and 2, the main body 11 includes: a base plate 111; a frame 112, wherein the frame 112 is arranged around the bottom plate 111; wherein the battery 20 is bonded to the base plate 111 so that the battery 20 can be stably fixed to the base plate 111, and the stopper 12 is coupled to the top end of the battery 20 so that the battery 20 can be reliably fixed.

It should be noted that the frame 112 is disposed around the bottom plate 111 without specific reference, and it is emphasized that the frame 112 forms a circumferentially closed space. The frame 112 is connected to the base plate 111, and the frame 112 may be disposed on the base plate 111, or the frame 112 may be connected to a circumferential edge of the base plate 111, which is not limited herein, and the cover plate 13 is connected to the frame 112 and disposed opposite to the base plate 111, so that the battery case 10 may form a closed space.

The frame 112 is connected to the bottom plate 111, and the frame 112 may be formed by splicing a plurality of beam members, or the frame 112 may also be an integral plate-shaped structure to enclose a circumferential closed space. The base plate 111 may be a protection plate, and the base plate 111 may be a liquid cooling plate, which is not limited herein, and the base plate 111 mainly constitutes a support and a protection for the bottom of the battery case 10.

In one embodiment, as shown in fig. 2, the main body 11 further includes: the separation beam 113, the separation beam 113 is located in the frame 112; at least one of the frame 112 and the partition beam 113 is connected to the stopper 12, and at least one of the frame 112 and the partition beam 113 is connected to the cover plate 13, thereby forming a battery case 10 having high structural strength.

The partition beams 113 partition independent spaces for placing the batteries 20 in the frame 112, and a plurality of batteries 20 may be disposed in each of the independent spaces. A plurality of partition beams 113 may be provided in the frame 112, as shown in fig. 2. Two cross-disposed separation beams 113 may be disposed in the frame 112, thereby forming 4 independent spaces. The limiting members 12 can be conveniently connected to the separating beam 113 and the frame 112, and each independent space can correspond to at least one independent limiting member 12. As shown in fig. 2, a plurality of batteries 20 may be disposed in one space, and a limiting member 12 may be disposed on the plurality of batteries 20, so that the plurality of batteries 20 may be reliably limited and fixed.

In some embodiments, two adjacent independent spaces may share one limiting member 12.

In one embodiment, the two ends of the limiting member 12 can be conveniently connected to the frame 112 and the separating beam 113, so as to ensure that the limiting member 12 can reliably fix the battery 20, and the length of the limiting member 12 is not too long, so as to ensure sufficient structural strength. In one embodiment, the bottom plate 111 includes a circulation flow channel so that the bottom plate 111 can be used to achieve heating or cooling of the battery 20. The circulating flow channel may be a fluid heat exchange channel, and the circulating flow channel may also be a gas heat exchange channel, so as to be used for cooling or heating the battery 20 inside the battery box 10.

In some embodiments, the cover plate 13 may be provided with a circulation flow channel, which may be a fluid heat exchange channel or a gas heat exchange channel, so as to cool or heat the battery 20 inside the battery box 10.

In some embodiments, it is not excluded that the battery 20 is snapped into the body 11.

In one embodiment, as shown in fig. 1, there are a plurality of batteries 20, and the limiting member 12 is connected to the plurality of batteries 20, so as to ensure that each battery 20 is reliably fixed in the battery box 10.

In one embodiment, the stacking direction of the plurality of cells 20 is parallel to the extending direction of the limiting member 12, so that the length of the limiting member 12 can be shortened on the basis of ensuring that the limiting member 12 is reliably fixed to each cell 20, thereby reducing the overall weight of the battery pack and improving the service performance of the battery pack. The extending direction of the stopper 12 is the longitudinal direction of the stopper 12.

In one embodiment, the two points of the limiting member 12 connected to the main body 11 form a connecting line, and the stacking direction of the plurality of batteries 20 is parallel to the connecting line, so that the length of the limiting member 12 can be shortened on the basis of ensuring that the limiting member 12 is reliably fixed to each battery 20, thereby reducing the overall weight of the battery pack and improving the service performance of the battery pack.

Two points of the limiting member 12 connected with the main body 11 form a connecting line, that is, a first connecting point is arranged between one end of the limiting member 12 and the main body 11, a second connecting point is arranged between the other end of the limiting member 12 and the main body 11, and the first connecting point and the second connecting point are connected to form the connecting line. A plurality of first connection points are arranged between one end of the limiting part 12 and the main body 11, a plurality of second connection points are arranged between the other end of the limiting part 12 and the main body 11, and a connection line formed by two points where the limiting part 12 is connected with the main body 11 can be regarded as a connection line formed by the minimum distance between the first connection points and the second connection points, that is, the plurality of first connection points are regarded as first straight lines, the plurality of second connection points are regarded as second straight lines, and the connection line is perpendicular to the first straight lines and the second straight lines.

In some embodiments, an included angle between the stacking direction of the plurality of batteries 20 and the extending direction of the limiting member 12 may be larger than 0 and smaller than 180 degrees.

In one embodiment, the retaining member 12 may be a reinforcing plate, which may be a metal plate, or alternatively, a plastic plate. The reinforcing plate may be fixed at both ends to the main body 11, the bottom of the reinforcing plate may be glued to the battery 20, and the reinforcing plate may be fixedly connected to the cover plate 13.

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

1. A battery pack characterized by comprising a battery case (10) and a battery (20), the battery (20) being provided to the battery case (10), the battery case (10) comprising:

a main body (11), the battery (20) being provided to the main body (11);

a stopper (12), the stopper (12) being connected to the main body (11) and to the battery (20);

the cover plate (13), the cover plate (13) with main part (11) be connected, and with locating part (12) are connected.

2. A battery pack according to claim 1, wherein the retaining member (12) is bonded to the battery (20).

3. The battery pack according to claim 1, wherein the cover plate (13) is detachably connected to the retaining member (12).

4. A battery pack according to claim 3, wherein the cover plate (13) is snapped into engagement with the retaining member (12) or connected thereto by means of a fastening member.

5. The battery pack according to claim 4, wherein the fastener is attached to a middle portion of the retaining member (12).

6. The battery pack according to claim 1, wherein the battery (20) is bonded to the main body (11).

7. The battery pack according to claim 6, wherein the main body (11) comprises:

a base plate (111);

a bezel (112), the bezel (112) disposed around the base plate (111);

wherein the battery (20) is bonded to the base plate (111).

8. The battery pack according to claim 7, wherein the main body (11) further comprises:

a separation beam (113), the separation beam (113) being located within the rim (112);

wherein at least one of the frame (112) and the separating beam (113) is connected with the limiting piece (12), and at least one of the frame (112) and the separating beam (113) is connected with the cover plate (13).

9. The battery pack according to claim 8, wherein the stopper (12) is connected at both ends thereof to the frame (112) and the partition beam (113), respectively.

10. The battery pack according to any one of claims 1 to 9, wherein the battery (20) is plural, and the stopper (12) connects the plural batteries (20);

wherein a connecting line is formed between two points where the stopper (12) and the main body (11) are connected, and the stacking direction of the plurality of batteries (20) is parallel to the connecting line.