CN220086226U - Battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries, in particular to a battery pack, which comprises a box body and a battery, wherein the battery is accommodated in the box body, the box body comprises a bottom plate, the bottom plate is provided with a body part and at least one bearing boss, the bearing boss is formed by protruding upwards from a part of area of the body part, the battery is borne on the bearing boss, a buffer cushion is arranged between the bearing boss and the battery, a plane where the body part is located is taken as a reference plane, and the orthographic projection of the buffer cushion and the orthographic projection of the bearing boss are at least partially overlapped on the reference plane. Through the structural design, the bearing boss can be used as the supporting position of the supporting tool, so that the stress of the battery pack is more uniform, the bearing area of the supporting tool and the bottom plate is increased, the structural strength of the bottom plate can be enhanced by the bearing boss, the bottom plate is prevented from deforming in the process of putting the battery into a box and transporting, and the structural stability of the battery pack is enhanced.

Description

Battery pack

Technical Field

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

Background

In the design scheme of current battery package, when the battery is gone into the case or when transporting the battery package, can support at the bottom half setting support frock, support the bottom plate of frock concrete via the jack-up post support box, because the thickness of bottom plate is limited and the holding area of jack-up post is less, cause the bottom plate to warp easily, influence the structural stability of battery package.

Disclosure of Invention

It is a primary object of the present utility model to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a battery pack with improved structural stability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a battery pack, including a case and a battery, the battery is accommodated in the case, the case includes a bottom plate, the bottom plate has a body portion and at least one bearing boss, the bearing boss is formed by protruding upward from a partial area of the body portion, the battery is borne on the bearing boss, a buffer pad is disposed between the bearing boss and the battery, and a plane where the body portion is located is taken as a reference plane, on which an orthographic projection of the buffer pad and an orthographic projection of the bearing boss at least partially overlap.

According to the technical scheme, the battery pack provided by the utility model has the advantages and positive effects that:

the battery pack comprises a box body and a battery, wherein a bottom plate of the box body is provided with a body part and a bearing boss, the bearing boss is formed by protruding upwards from a part of the body part, the battery is borne on the bearing boss, a buffer cushion is arranged between the bearing boss and the battery, and the buffer cushion and the bearing boss are at least partially overlapped. Through the structural design, the bearing boss can be used as the supporting position of the supporting tool, so that the stress of the battery pack is more uniform, the bearing area of the supporting tool and the bottom plate is increased, the structural strength of the bottom plate can be enhanced by the bearing boss, the bottom plate is prevented from deforming in the process of putting the battery into a box and transporting, and the structural stability of the battery pack is enhanced.

Drawings

Various objects, features and advantages of the present utility model will become more apparent from the following detailed description of the preferred embodiments of the utility model, when taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the utility model and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout. Wherein:

fig. 1 is a schematic perspective view of a battery pack according to an exemplary embodiment;

fig. 2 is a partially cut-away schematic illustration of the battery pack shown in fig. 1;

fig. 3 is a schematic perspective view of a case of the battery pack shown in fig. 1;

fig. 4 is a schematic perspective view of a case according to another exemplary embodiment;

fig. 5 is a schematic perspective view of a case of a battery pack according to still another exemplary embodiment;

FIG. 6 is a schematic partial cross-sectional view of the tank shown in FIG. 5;

fig. 7 is a partially cross-sectional schematic view of a battery pack according to still another exemplary embodiment.

The reference numerals are explained as follows:

100. a case;

110. a bottom plate;

111. a body portion;

112. a bearing boss;

113. a mounting part;

114. reinforcing the convex ribs;

120. an inner beam;

200. a battery;

300. a cushion pad;

400. a heat exchange plate;

H. spacing;

x. first direction.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model are described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and drawings are intended to be illustrative in nature and not to be limiting.

In the following description of various exemplary embodiments of the utility model, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the utility model may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present utility model. Moreover, although the terms "over," "between," "within," and the like may be used in this description to describe various exemplary features and elements of the utility model, these terms are used herein for convenience only, e.g., in terms of the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure in order to fall within the scope of the utility model.

Referring to fig. 1, a schematic perspective view of a battery pack according to the present utility model is representatively illustrated, wherein the perspective view of the battery pack is specifically illustrated. In this exemplary embodiment, the battery pack according to the present utility model is described by taking an in-vehicle battery as an example. Those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to adapt the relevant designs of the present utility model to other types of battery devices, and such changes remain within the principles of the battery packs presented herein.

As shown in fig. 1, in an embodiment of the present utility model, a battery pack according to the present utility model includes a case 100 and a battery 200, wherein the battery 200 is accommodated in the case 100. Referring to fig. 2-3 in conjunction, a partial cross-sectional schematic view of a battery pack is representatively illustrated in fig. 2, wherein the thicknesses of the various components shown are merely illustrative and do not limit the magnitude relationship of the thicknesses of the various components; a schematic perspective view of the case 100 is representatively illustrated in fig. 3. The structure, connection manner and functional relationship of the main components of the battery pack according to the present utility model will be described in detail with reference to the above drawings.

As shown in fig. 1 to 3, in an embodiment of the present utility model, the case 100 includes a base plate 110, the base plate 110 has a body portion 111 and at least one bearing boss 112, and the bearing boss 112 is formed by protruding upward from a partial area of the body portion 111. The bearing boss 112 may be formed by stamping, or may be formed by other means. The battery 200 is supported on the supporting boss 112, and a buffer pad 300 is disposed between the supporting boss 112 and the battery 200. The plane of the main body 111 of the base plate 110 is taken as a reference plane, and on the reference plane, the front projection of the cushion pad 300 at least partially overlaps with the front projection of the bearing boss 112. Through the structural design, the bearing boss 112 can be used as a supporting position of the supporting tool, so that the stress of the battery pack is more uniform, the bearing area of the supporting tool and the bottom plate 110 is increased, the structural strength of the bottom plate 110 can be enhanced by the bearing boss 112, the bottom plate 110 is prevented from deforming in the process of putting the battery 200 into a box and transporting, and the structural stability of the battery pack is enhanced.

Specifically, when the battery pack is put into the box or transported, a supporting tool is usually placed under the box 100 for supporting, the supporting tool includes four supporting columns, for example, the supporting columns are limited in thickness of the bottom plate 110 and small in supporting area, if the supporting columns are used for supporting the middle of the bottom plate 110, the bottom plate 110 may be deformed due to overlarge pressure of the supporting columns, so that the supporting columns are usually disposed at positions corresponding to four corners of the box 100, however, only supporting the four corners of the box 100 may result in no support in the middle area of the bottom plate 110, and the impact force to the bottom plate 110 when the battery 200 is put into the box may cause the bottom plate 110 (or the heat exchange plate 400) to be concavely deformed.

As shown in fig. 3, in one embodiment of the present utility model, the base plate 110 may have at least two bearing bosses 112, such as, but not limited to, four shown in the drawings, with the bearing bosses 112 being spaced apart. Through the structural design, the utility model can respectively support at least two jacking columns of the support tool by using at least two bosses, so that the stress of the battery pack is more uniform. In some embodiments, the bottom plate 110 may have only one supporting boss 112, and when the supporting tool includes at least two supporting columns, the at least two supporting columns may also be supported at different positions of the one supporting boss 112 at the same time, which is not limited to this embodiment.

Based on the structural design that the bottom plate 110 has at least two bearing bosses 112, in an embodiment of the present utility model, the battery pack according to the present utility model may include at least two cushions 300, and the number of cushions 300 may be equal to the number of bearing bosses 112, and the at least two cushions 300 are in one-to-one correspondence with the at least two bearing bosses 112. Through the above structural design, the present utility model can reduce the material cost of the cushion 300, and is beneficial to reducing the weight of the battery pack. In some embodiments, when the base plate 110 has at least two bearing bosses 112, the battery pack may also include a fewer number of cushioning pads 300 than the bearing bosses 112, and at least one cushioning pad 300 may overlap at least two bearing bosses 112 at the same time. Furthermore, when the bottom plate 110 has only one carrying boss 112, the battery pack may include only one cushion 300, or may include at least two cushions 300, which is not limited to the embodiment.

Referring to fig. 4, there is representatively illustrated in fig. 4 an exploded perspective view of a battery pack in another exemplary embodiment capable of embodying principles of the present utility model, particularly with the inner beam 120 separated from the base plate 110.

As shown in fig. 4, in an embodiment of the present utility model, taking a structural design in which the base plate 110 has at least two bearing bosses 112 as an example, the case 100 may further include an inner beam 120, and the base plate 110 may be provided with a mounting portion 113, and the inner beam 120 is connected to the mounting portion 113. On this basis, the at least two bearing bosses 112 may be divided into two groups, each group including at least one bearing boss 112, the two groups being symmetrically arranged with respect to the axis of the inner beam 120 as a symmetry axis. Through the structural design, the utility model can ensure that the stress of the battery pack is more uniform when the battery 200 is put into a box or supported by the supporting tool in the transportation process.

As shown in fig. 4, based on the structural design in which at least two bearing bosses 112 are divided into two groups, in an embodiment of the present utility model, each group may include at least two bearing bosses 112, for example, but not limited to, two shown in the drawings, and at least two bearing bosses 112 belonging to the same group are spaced apart in a direction parallel to the axis of the inner beam 120. Through the structural design, the utility model can ensure that the stress of the battery pack is more uniform.

Referring to fig. 5 and 6, a schematic perspective view of a battery pack capable of embodying principles of the present utility model in yet another exemplary embodiment is representatively illustrated in fig. 5; a partial cross-sectional view of the battery pack shown in fig. 5 is representatively illustrated in fig. 6.

As shown in fig. 5 and 6, in an embodiment of the present utility model, a part of the area of the bearing boss 112 may be formed with a reinforcing rib 114 protruding downward. Further, the reinforcing ribs 114 may be formed by stamping, or may be formed in other manners. Through the structural design, the structural strength of the bottom plate 110 at the bearing boss 112 can be further enhanced by utilizing the reinforcing ribs 114, so that the bearing boss 112 is prevented from deforming, and the structural stability of the battery pack is further improved.

As shown in fig. 5, based on the structural design that the bearing boss 112 is formed with the reinforcing ribs 114, in an embodiment of the present utility model, for at least one bearing boss 112, the bearing boss 112 may include at least two reinforcing ribs 114, and at least two reinforcing ribs 114 belonging to the same bearing boss 112 are arranged at intervals. Further, at least two reinforcing ribs 114 belonging to the same carrying boss 112 may be arranged in parallel.

As shown in fig. 6, based on the structural design that the bearing boss 112 is formed with the reinforcing ribs 114, in an embodiment of the present utility model, the bottom surface of the reinforcing ribs 114 may be flush with the bottom surface of the body portion 111. In other words, the distance that the carrying boss 112 protrudes upward (toward the battery 200) from the body portion 111 may be equal to the distance that the reinforcing bead 114 protrudes downward (away from the battery 200) from the top of the carrying boss 112. Through the structural design, the bottom surface of the reinforcing rib 114 and the bottom surface of the body 111 are in the same plane, so that the bearing area of the battery pack is increased when the battery pack is placed, and the structural stability of the battery pack is further improved.

Referring to fig. 1, in an embodiment of the present utility model, a plurality of batteries 200 of a battery pack are arranged along a first direction X based on a structural design of the bearing boss 112 with the reinforcing ribs 114. On this basis, the reinforcing bead 114 may have a long strip shape extending in the first direction X. Through the above structural design, since the plurality of batteries 200 are arranged along the first direction X, the stress differences of the bearing boss 112 at different positions in the first direction X are relatively obvious, so that the structural strength of the bearing boss 112 can be further optimized by using the elongated reinforcing ribs 114 extending along the first direction X, and the bearing boss 112 is prevented from being deformed.

Referring to fig. 7, a partial cross-sectional view of a battery pack capable of embodying the principles of the present utility model is representatively illustrated in fig. 7 in yet another exemplary embodiment.

As shown in fig. 7, in an embodiment of the present utility model, the battery pack according to the present utility model may further include a heat exchange plate 400, wherein the heat exchange plate 400 is disposed between the bottom plate 110 and the battery 200, and the buffer pad 300 is disposed between the bearing boss 112 of the bottom plate 110 and the heat exchange plate 400. Wherein the spacing H between the bottom surface of the heat exchange plate 400 and the top surface of the carrying boss 112 may be greater than or equal to 2mm, such as 2mm, 2.5mm, 3mm, 4mm, 5mm, etc. In other words, the thickness of the cushion 300 interposed between the heat exchange plate 400 and the bearing boss 112 after being compressed by the compression of the heat exchange plate 400 and the bearing boss 112 is not less than 2mm. Through the above structural design, the distance H between the bearing boss 112 and the heat exchange plate 400 is small, so that the bearing boss 112 and the heat exchange plate 400 are prevented from being too close to each other, and the heat exchange plate 400 is prevented from being damaged easily when the bottom plate 110 is impacted.

It should be noted herein that the battery packs shown in the drawings and described in this specification are only a few examples of the wide variety of battery packs that can employ the principles of the present utility model. It should be clearly understood that the principles of the present utility model are in no way limited to any details or any components of the battery pack shown in the drawings or described in the present specification.

In summary, the battery pack according to the present utility model includes a case 100 and a battery 200, wherein the bottom plate 110 of the case 100 has a main body 111 and a supporting boss 112, the supporting boss 112 is formed by protruding upward from a partial area of the main body 111, the battery 200 is supported on the supporting boss 112, a buffer 300 is disposed between the supporting boss 112 and the battery 200, and the buffer 300 at least partially overlaps the supporting boss 112. Through the structural design, the bearing boss 112 can be used as a supporting position of the supporting tool, so that the stress of the battery pack is more uniform, the bearing area of the supporting tool and the bottom plate 110 is increased, the structural strength of the bottom plate 110 can be enhanced by the bearing boss 112, the bottom plate 110 is prevented from deforming in the process of putting the battery 200 into a box and transporting, and the structural stability of the battery pack is enhanced.

Exemplary embodiments of the battery pack according to the present utility model are described and/or illustrated in detail above. Embodiments of the utility model are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or each step of one embodiment may also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. that are described and/or illustrated herein, the terms "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc., in addition to the listed elements/components/etc. Furthermore, the terms "first" and "second" and the like in the claims and in the description are used for descriptive purposes only and not for numerical limitation of their subject matter.

While the utility model has been described in terms of various specific embodiments, those skilled in the art will recognize that the utility model can be practiced with modification within the spirit and scope of the claims.

Claims (10)

1. The utility model provides a battery package, its characterized in that includes box and battery, the battery hold in the box, the box includes the bottom plate, the bottom plate has body portion and at least one bears the boss, bear the boss by the partial region of body portion upwards protrudes and forms, the battery bear on bearing the boss, bear the boss with be provided with the blotter between the battery, with the plane at body portion place is the reference surface on the reference surface, the orthographic projection of blotter with the orthographic projection of bearing the boss overlaps at least partially.

2. The battery pack of claim 1, wherein the base plate has at least two of the load-bearing bosses spaced apart.

3. The battery pack of claim 2, wherein the battery pack includes at least two of the cushioning pads, the number of cushioning pads being equal to the number of load-bearing bosses, the at least two cushioning pads being in one-to-one correspondence with the at least two load-bearing bosses.

4. The battery pack according to claim 2, wherein the case further includes an inner beam, the bottom plate is provided with a mounting portion, and the inner beam is connected to the mounting portion; wherein at least two bearing bosses are divided into two groups, each group comprises at least one bearing boss, and the two groups are symmetrically arranged by taking the axis of the inner beam as a symmetrical axis.

5. The battery pack of claim 4, wherein each of the groups includes at least two of the bearing bosses, the at least two bearing bosses belonging to the same group being spaced apart in a direction parallel to the axis of the inner beam.

6. The battery pack of claim 1, wherein the partial region of the carrying boss is formed with a reinforcing bead protruding downward.

7. The battery pack of claim 6, wherein the carrying boss comprises at least two of the reinforcing ribs, the at least two reinforcing ribs belonging to the same carrying boss being arranged at intervals.

8. The battery pack of claim 6, wherein the bottom surface of the reinforcing bead is flush with the bottom surface of the body portion.

9. The battery pack of claim 6, wherein a plurality of the cells of the battery pack are arranged in a first direction; wherein, the strengthening rib is the rectangular shape that extends along first direction.

10. The battery pack according to any one of claims 1 to 9, further comprising a heat exchange plate disposed between the bottom plate and the battery, the cushion pad being disposed between the load-bearing boss of the bottom plate and the heat exchange plate, a spacing between a bottom surface of the heat exchange plate and a top surface of the load-bearing boss being greater than or equal to 2mm.