CN220155640U - Battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries, in particular to a battery pack, which comprises a battery box body, wherein the battery box body comprises a frame and a plugging plate, the frame is a body and an inner side plate which are formed by die casting and comprise an integrated structure, the inner side plate is positioned at the inner side of the body at intervals, the height of the inner side plate is smaller than that of the body, the inner side plate and the body jointly form a groove with an upward opening, and the plugging plate is arranged at the notch of the groove and plugs the groove. Through the structural design, the sealing plate can be used for sealing the unclosed groove between the frame body and the inner side plate due to die casting, so that the problem of abnormal sound caused by foreign matters and fragments falling into the groove is avoided. In addition, the utility model also avoids the influence on the battery box body after foreign matters and fragments possibly containing non-insulating substances and corrosive substances fall into the grooves, and further ensures the structural stability and safety of the battery pack.

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 the existing battery pack, the frame of the battery box is manufactured by adopting a die-casting molding process, so that the manufacturing requirements of the battery box for more flexible and changeable structural shapes are met, and particularly the manufacturing requirements of the frame of the box with a special-shaped structure are met, and the manufacturing requirements of the frame of the box cannot be realized by rolling and extruding the frame. When the frame of battery box adopts die casting shaping, the notch can exist to the frame, leads to the structural stability and the security of battery package to reduce.

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 and safety.

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

according to one aspect of the utility model, a battery pack is provided, wherein the battery pack comprises a battery box body, the battery box body comprises a frame and a plugging plate, the frame is formed by die casting and comprises a body and an inner side plate which are integrally formed, the inner side plate is positioned on the inner side of the body at intervals, the height of the inner side plate is smaller than that of the body, the inner side plate and the body form a groove with an upward opening together, and the plugging plate is arranged at a notch of the groove and plugs the groove.

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

the battery box body of the battery pack comprises a frame and a plugging plate, wherein the frame is formed by die casting and comprises a body and an inner side plate which are integrally formed, the inner side plate is positioned at the inner side of the body at intervals, the inner side plate and the body jointly form a groove with an upward opening, and the plugging plate is arranged at a notch of the groove and plugs the groove. Through the structural design, the sealing plate can be used for sealing the unclosed groove between the frame body and the inner side plate due to die casting, so that the problem of abnormal sound caused by foreign matters and fragments falling into the groove is avoided. In addition, the utility model also avoids the influence on the battery box body after foreign matters and fragments possibly containing non-insulating substances and corrosive substances fall into the grooves, and further ensures the structural stability and safety of the battery pack.

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 case of a battery pack according to an exemplary embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an exploded perspective view of FIG. 2;

FIG. 4 is a top view of FIG. 2;

fig. 5 is a perspective sectional view taken along line B-B of fig. 4;

FIG. 6 is a perspective cross-sectional view taken along line C-C in FIG. 4;

fig. 7 is a perspective sectional view taken along line D-D in fig. 4;

fig. 8 is a partial perspective sectional view of a battery case of a battery pack according to another exemplary embodiment;

fig. 9 is a partial perspective sectional view of a battery case of a battery pack according to still another exemplary embodiment.

The reference numerals are explained as follows:

100. a frame;

110. a body;

111. an inner side surface;

120. an inner side plate;

130. a groove;

131. installing ribs;

1311. a first mounting hole;

132. reinforcing ribs;

210. a plugging plate;

211. flanging;

220. a reinforcing plate;

221. a fourth mounting hole;

222. convex ribs;

223. a buffer chamber;

300. a bottom plate.

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 case of a battery pack according to the present utility model is representatively illustrated, wherein the perspective view of the battery case of the battery pack is shown. 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 battery case, a case cover, and a battery, wherein the battery is accommodated in the battery case, and the case cover is disposed at the top of the battery case. Referring to fig. 2-7 in conjunction, an enlarged schematic view of portion a of fig. 1 is representatively illustrated in fig. 2; representatively illustrated in fig. 3 is an exploded perspective view of fig. 2, with the closure plate 210 particularly separated; fig. 4 representatively illustrates a top view of fig. 2; a perspective cross-sectional view taken along line B-B in fig. 4 is representatively illustrated in fig. 5; fig. 6 representatively shows a perspective sectional view taken along the line C-C in fig. 4, with a partial region shown enlarged; a perspective cross-sectional view taken along line D-D in fig. 4 is representatively illustrated in fig. 7. 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 4, in an embodiment of the present utility model, the battery case includes a frame 100 and a sealing plate 210. Specifically, the frame 100 is formed by die casting, and the frame 100 includes a body 110 and an inner plate 120 with an integral structure, the inner plate 120 is spaced apart from the inner side of the body 110 (i.e. the side of the body 110 facing the battery), the height of the inner plate 120 is smaller than that of the body 110, and the inner plate 120 and the body 110 together form a recess 130 with an upward opening. On this basis, the blocking plate 210 is disposed at the notch of the groove 130 and blocks the groove 130. Through the above structural design, the present utility model can utilize the plugging plate 210 to seal the unsealed groove 130 between the frame 100 body 110 and the inner side plate 120 due to die casting, so as to avoid abnormal noise caused by foreign matters and chips falling into the groove 130. In addition, the utility model also avoids the influence on the battery box body after foreign matters and fragments possibly containing non-insulating substances and corrosive substances fall into the groove 130, and further ensures the structural stability and safety of the battery pack.

As shown in fig. 5 and 6, in an embodiment of the present utility model, one end of the plugging plate 210 abuts against the inner side 111 of the body 110, and the inner side 111 is a side surface of the body 110 facing the battery (i.e. facing the inner side plate 120), and for convenience of understanding and explanation, the inner side 111 is filled with gray dense dot patterns in each related drawing, it should be understood that the above pattern filling of the inner side 111 in the drawing is only exemplary, and is not limited to the structure, material, etc. of the inner side 111. Wherein the other end of the sealing plate 210 (i.e., the end of the sealing plate 210 remote from the body 110) is located on the top surface of the inner side plate 120, and the other end of the sealing plate 210 may have a flange 211, and the flange 211 extends parallel to the inner side surface 111 of the body 110 and away from the inner side plate 120 (e.g., upward). Through the above structural design, the utility model can utilize the flange 211 to prevent impurities and foreign matters (such as metal scraps) generated in the installation process from falling into the battery compartment or the electric compartment of the battery box body.

As shown in fig. 3, 6 and 7, in an embodiment of the present utility model, a mounting rib 131 may be provided in the groove 130, the mounting rib 131 being connected between the body 110 and the inner panel 120, and a first mounting hole 1311 being provided at a top surface of the mounting rib 131, an axis of the first mounting hole 1311 being parallel to the inner panel 120. On this basis, the blocking plate 210 and the mounting rib 131 may be connected via a first mounting member, and the first mounting member and the first mounting hole 1311 are respectively a bolt and a screw hole which are in threaded engagement. Correspondingly, a third mounting hole may be formed on the plugging plate 210, where the position of the third mounting hole corresponds to the position of the first mounting hole 1311, and the first mounting member passes through the first mounting hole 1311 and the third mounting hole. Through the structural design, the connection between the plugging plate 210 and the mounting rib 131 (namely the frame 100) can be realized in a threaded connection mode, so that the operation is convenient, and the connection is reliable. Furthermore, since the axis of the first mounting hole 1311 is parallel to the inner plate 120, the first mounting hole 1311 can be formed with the structures such as the groove 130 in the die-casting process of the frame 100, which is beneficial to simplifying the manufacturing process and improving the efficiency.

As shown in fig. 3, 6 and 7, in an embodiment of the present utility model, a reinforcing rib 132 may be provided in the groove 130, and the reinforcing rib 132 is connected between the body 110 and the inner panel 120. Through the above structural design, the present utility model can use the reinforcing rib 132 to strengthen the connection strength between the inner side plate 120 and the body 110, thereby strengthening the structural strength of the frame 100.

Based on the structural design of the reinforcing ribs 132 disposed in the grooves 130, in an embodiment of the present utility model, a plane where the bottom plate 300 of the battery case is located is taken as a reference plane, on which the orthographic projection of the reinforcing ribs 132 and the orthographic projection of the inner side plate 120 may have angles different from 0, 90 ° and 180 °, in other words, the reinforcing ribs 132 are not perpendicular to the inner side plate 120 or the inner side 111 of the body 110, and the reinforcing ribs 132 are not parallel to the inner side plate 120 or the inner side 111 of the body 110. Through the above structural design, the present utility model can further enhance the reinforcing effect of the reinforcing ribs 132 on the connection strength between the inner panel 120 and the body 110, and further enhance the structural strength of the frame 100.

Referring to fig. 8, a partial perspective cross-sectional view of a battery case of another exemplary embodiment of a battery pack capable of embodying the principles of the present utility model is representatively illustrated in fig. 8, wherein a partial region is shown enlarged, and the specific cut-away position of fig. 8 may refer to the cut-away position of fig. 5, which is illustrated in fig. 4.

As shown in fig. 8, in an embodiment of the present utility model, the battery case may further include a reinforcing plate 220, the reinforcing plate 220 is disposed on the inner side 111 of the body 110, and the reinforcing plate 220 is located above the groove 130. The material strength of the reinforcing plate 220 is greater than that of the frame 100, and the material extensibility of the reinforcing plate 220 is greater than that of the frame 100. Through the above structural design, the present utility model can utilize the reinforcing plate 220 to enhance the structural strength of the body 110.

As shown in fig. 8, based on the structural design that the battery case includes the reinforcing plate 220, in an embodiment of the present utility model, a portion of the inner side 111 of the body 110 above the groove 130 may be provided with a second mounting hole, and an axis of the second mounting hole is parallel to an alignment direction (i.e., a horizontal direction) of the body 110 and the inner side plate 120. On this basis, the reinforcing plate 220 and the body 110 may be connected via a second mounting member, and the second mounting member and the second mounting hole are respectively a rivet connection member and a rivet hole in rivet fit. Correspondingly, a fourth mounting hole 221 may be formed in the reinforcing plate 220, and the fourth mounting hole 221 corresponds to the second mounting hole in position, and the second mounting member passes through the second mounting hole and the fourth mounting hole 221. Since the second mounting hole is blocked by the reinforcing plate 220 in the drawing, the position of the second mounting hole can be understood through the fourth mounting hole 221 of the reinforcing plate 220 shown in the drawing. Through the above structural design, since the frame 100 of the battery box body is formed by die casting, and the direction of the die casting is the vertical direction (i.e. the vertical upward opening direction corresponding to the groove 130) and the mounting hole in the horizontal direction cannot be directly formed on the inner side 111 of the body 110, unlike the structural design that the plugging plate 210 and the inner side plate 120 are connected by screw connection, the utility model can realize the connection of the reinforcing plate 220 and the body 110 by using rivet, and flexibly cope with the inherent structural characteristics of the frame 100 due to the die casting process, so that the connection mode is more flexible, convenient to operate and reliable to connect.

As shown in fig. 8, based on the structural design that the battery case includes the reinforcing plate 220, in an embodiment of the present utility model, the reinforcing plate 220 may have a rib 222 protruding away from the body 110, the surface of the reinforcing plate 220 facing the body 110 has a recess corresponding to the position of the rib 222, and the recess and the inner side 111 of the body 110 together form a buffer cavity 223. Through the structural design, the anti-impact capacity of the reinforcing plate 220 can be enhanced by the ribs 222, meanwhile, the buffer cavity 223 is utilized for providing a buffer effect for the body 110, so that the anti-impact capacity of the battery box body is further improved, and the structural stability and reliability of the battery pack are improved.

As shown in fig. 8, based on the structural design of the reinforcing plate 220 with the ribs 222, in an embodiment of the present utility model, the reinforcing plate 220 may have a plurality of ribs 222, and the ribs 222 may be arranged at intervals in the height direction of the battery pack. Through the above structural design, the present utility model can further improve the impact resistance of the reinforcing plate 220 and the buffering function of the body 110.

Referring to fig. 9, a partial perspective cross-sectional view of a battery case of another exemplary embodiment of a battery pack capable of embodying the principles of the present utility model is representatively illustrated in fig. 9, wherein a partial region is shown enlarged, and the specific cut-away position of fig. 9 may refer to the cut-away position of fig. 5, which is illustrated in fig. 4.

In contrast to the embodiment shown in fig. 8, in which the sealing plate 210 and the reinforcing plate 220 are in a separate structure, as shown in fig. 9, the structure of the battery case including the reinforcing plate 220 is still taken as an example, and in an embodiment of the present utility model, the reinforcing plate 220 and the sealing plate 210 may be integrally formed. Through the structural design, the utility model can reduce the number of parts, simplify the preparation process and improve the assembly efficiency. In addition, compared with the split structural design, when the plugging plate 210 and the reinforcing plate 220 adopt an integrated structure, the integrated structure can have structural integrity, so that the structural strength of the body 110 and the connection strength of the body 110 and the inner side plate 120 are further improved, and the overall structural strength of the frame is improved accordingly.

Based on the structural design of the integrated structure of the reinforcing plate 220 and the plugging plate 210, in an embodiment of the utility model, the reinforcing plate 220 and the plugging plate 210 may be integrally formed through metal plates.

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 box of the battery pack according to the present utility model includes the frame 100 and the plugging plate 210, the frame 100 is a die-cast body 110 and the inner plate 120 with an integral structure, the inner plate 120 is spaced apart from the inner side of the body 110, the inner plate 120 and the body 110 together form the groove 130 with an upward opening, and the plugging plate 210 is disposed at the notch of the groove 130 and plugs the groove 130. Through the above structural design, the present utility model can utilize the plugging plate 210 to seal the unsealed groove 130 between the frame 100 body 110 and the inner side plate 120 due to die casting, so as to avoid abnormal noise caused by foreign matters and chips falling into the groove 130. In addition, the utility model also avoids the influence on the battery box body after foreign matters and fragments possibly containing non-insulating substances and corrosive substances fall into the groove 130, and further ensures the structural stability and safety of the battery pack.

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 the battery box, the battery box includes frame and shutoff board, the frame is die casting shaping and includes body and the inboard board of integral structure, the inboard board is located with interval the inboard of body, the height of inboard board is less than the height of body, the inboard board with the body forms the recess that the opening is up jointly, the shutoff board set up in the notch department of recess and shutoff the recess.

2. The battery pack according to claim 1, wherein one end of the plugging plate abuts against the inner side surface of the body, the other end of the plugging plate is located on the top surface of the inner side plate, and the other end of the plugging plate is provided with a flanging extending parallel to the inner side surface of the body and away from the inner side plate.

3. The battery pack according to claim 1, wherein a mounting rib is arranged in the groove, the mounting rib is connected between the body and the inner side plate, a first mounting hole is formed in the top surface of the mounting rib, the axis of the first mounting hole is parallel to the inner side plate, the plugging plate is connected with the mounting rib through a first mounting piece, and the first mounting piece and the first mounting hole are respectively a bolt and a screw hole in threaded fit.

4. The battery pack of claim 1, wherein a reinforcing rib is provided in the groove, the reinforcing rib being connected between the body and the inner side plate.

5. The battery pack according to claim 4, wherein the front projection of the reinforcing rib and the front projection of the inner side plate have angles other than 0, 90 degrees and 180 degrees on a reference plane with respect to a plane in which the bottom plate of the battery case is located.

6. The battery pack according to any one of claims 1 to 5, wherein the battery case further comprises a reinforcing plate disposed on the inner side surface of the body above the recess, the reinforcing plate has a material strength greater than that of the frame, and the reinforcing plate has a material expansion rate greater than that of the frame.

7. The battery pack according to claim 6, wherein a second mounting hole is formed in a portion of the inner side surface of the body above the groove, an axis of the second mounting hole is parallel to an arrangement direction of the body and the inner side plate, the reinforcing plate is connected with the body via a second mounting member, and the second mounting member and the second mounting hole are respectively a rivet connection member and a rivet hole of rivet fitting.

8. The battery pack according to claim 6, wherein the reinforcing plate has a rib protruding away from the body, and a surface of the reinforcing plate facing the body has a recess corresponding to a position of the rib, the recess and an inner side surface of the body together forming a buffer chamber.

9. The battery pack according to claim 8, wherein the reinforcing plate has a plurality of the ribs, the plurality of the ribs being arranged at intervals in a height direction of the battery pack.

10. The battery pack of claim 6, wherein the stiffening plate is of unitary construction with the plug plate.