CN219371186U - 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, a box cover and a reinforcing structure, wherein the box cover is arranged on the box body, the reinforcing structure is provided with a main body part and a first connecting part, the main body part is positioned on the top surface of the box cover, the first connecting part is connected with the end part of the main body part, and the first connecting part is connected with the box body. Through the structural design, the connection strength of the box cover and the box body can be enhanced by utilizing the reinforcing structure, so that the structural stability and the safety of the battery pack are improved.

Description

Battery pack

Technical Field

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

Background

In the design of current battery package, the battery box includes box and case lid, and the case lid sets up on the box and fixed connection. However, the connection strength between the case cover and the case body of the conventional battery pack is poor, and particularly, the case cover and the case body are easy to fail in connection under vibration working conditions or after long-term use, so that the structural stability and safety of the battery pack are affected.

Disclosure of Invention

It is therefore 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 an electric vehicle with improved 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, a case cover provided on the case, and a reinforcement structure having a main body portion and a first connection portion, the main body portion being located on a top surface of the case cover, the first connection portion being connected to an end portion of the main body portion, the first connection portion being connected to the case.

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 reinforcing structure, wherein the reinforcing structure is provided with a main body part and a first connecting part, the main body part is positioned on the top surface of the case cover, the first connecting part is connected to the end part of the main body part, and the first connecting part is connected to the case body. Through the structural design, the connection strength of the box cover and the box body can be enhanced by utilizing the reinforcing structure, so that the structural stability and the safety of the battery pack are improved.

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 an exploded perspective view of the battery pack shown in fig. 1;

fig. 3 is a cross-sectional view of the battery pack shown in fig. 1;

FIG. 4 is a schematic perspective view of the reinforcing structure shown in FIG. 1;

FIG. 5 is an exploded perspective view of the reinforcing structure shown in FIG. 4;

fig. 6 is a schematic perspective view of the case shown in fig. 1;

fig. 7 is a schematic perspective view of a battery pack according to another exemplary embodiment;

fig. 8 is an exploded perspective view of the battery pack shown in fig. 7;

FIG. 9 is a schematic perspective view of the reinforcing structure shown in FIG. 7;

fig. 10 is a schematic perspective view of a battery pack according to still another exemplary embodiment;

FIG. 11 is a schematic perspective view of a portion of the reinforcing structure shown in FIG. 10;

fig. 12 is a schematic perspective view of a battery pack according to still another exemplary embodiment;

fig. 13 is a schematic perspective view of the case cover shown in fig. 12;

fig. 14 is a sectional view of a part of the structure of the battery pack shown in fig. 12.

The reference numerals are explained as follows:

100. a case;

110. a frame;

120. an assembling portion;

130. a sealing structure;

140. a battery compartment;

150. a partition plate;

160. an electrical bin;

170. an end beam;

200. a case cover;

210. a recessed structure;

220. a boss;

230. convex ribs;

240. an end portion;

300. a reinforcing structure;

301. an upper plate;

3011. convex ribs;

302. a lower plate;

310. a main body portion;

321. a first connection portion;

322. a second connecting portion;

330. a channel;

341. a first profiling bending structure;

342. a second profiling bending structure;

351. a mounting hole;

352. a connecting plate;

C1. a first connector;

C2. a second connector;

x, a first direction;

y. second 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. 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 case cover 200, wherein the case cover 200 is disposed on the case 100. Referring to fig. 2 through 6 in conjunction, an exploded perspective view of a battery pack is representatively illustrated in fig. 2; a cross-sectional view of the battery pack is representatively illustrated in fig. 3; a schematic perspective view of the reinforcing structure 300 is representatively illustrated in fig. 4; an exploded perspective view of the reinforcing structure 300 is representatively illustrated in fig. 5; a schematic perspective view of the case 100 is representatively illustrated in fig. 6. 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 and 2, in an embodiment of the present utility model, the battery pack further includes a reinforcement structure 300, the reinforcement structure 300 has a main body portion 310 and a first connection portion 321, the main body portion 310 is located on the top surface of the case cover 200, the first connection portion 321 is connected to an end portion of the main body portion 310, and the first connection portion 321 is connected to the case 100. The reinforcing structure 300 shown in the drawings is described by taking the first connecting portion 321 provided at both ends of the main body portion 310 as an example. In some embodiments, the reinforcing structure 300 may also have the first connecting portion 321 only at one end of the main body portion 310. In other words, unlike the structural design in which the end of the reinforcing structure 300 is connected to the case 100 as shown in the drawings, in some embodiments, the end of the reinforcing structure 300 may further extend out of the range of the case 100 or extend to other positions of the case 100 on the basis of the connection of the first connection portion 321 to the case 100. Through the above structural design, the present utility model can enhance the connection strength between the case cover 200 and the case body 100 by using the reinforcement structure 300, thereby improving the structural stability and safety of the battery pack.

In one embodiment of the present utility model, the body portion 310 of the reinforcing structure 300 may be detachably connected to the cover 200. With the above structural design, the present utility model can realize the disassembly and assembly of the reinforcing structure 300 and the case cover 200, thereby replacing and maintaining the reinforcing structure 300 or the case cover 200. In some embodiments, the main body 310 and the case cover 200 may not have a connection relationship, in other words, the reinforcing structure 300 may at least achieve the reinforcement of the connection strength between the case cover 200 and the case 100 through the connection between the first connection portion 321 and the case 100.

In an embodiment of the present utility model, the battery pack according to the present utility model may further include a first connection member C1, wherein the first connection member C1 is disposed through the first connection portion 321 of the reinforcement structure 300, the case cover 200, and the case 100 to detachably connect the first connection portion 321 (i.e., the reinforcement structure 300), the case cover 200, and the case 100. Through the above structural design, the first connecting piece C1 can be utilized to simultaneously connect the reinforcing structure 300, the case cover 200 and the case body 100, which is beneficial to reducing the number of parts and simplifying the assembly process. In some embodiments, when the main body 310 is detachably connected to the case cover 200, other connectors may be additionally disposed between the main body 310 and the case cover 200, and the connection between the reinforcing structure 300 and the case cover 200 may be realized by, but not limited to, the first connector C1.

Based on the structural design that the first connecting member C1 penetrates the first connecting portion 321 of the reinforcing structure 300, the case cover 200, and the case body 100, in an embodiment of the present utility model, a sealing structure may be disposed between the case cover 200 and the case body 100, thereby sealing between the case cover 200 and the case body 100.

As shown in fig. 2, in an embodiment of the present utility model, the reinforcement structure 300 may be a reinforcement strip, i.e. a substantially strip-shaped structure, and the reinforcement strip and the case cover 200 may be a separate structure.

As shown in fig. 1, based on the structural design that the reinforcing structure 300 and the case cover 200 are separate structures, in an embodiment of the present utility model, the first connection portion 321 of the reinforcing strip and the case cover 200 may be connected via the first connection member C1. For example, the first connecting member C1 may be a bolt, a rivet, or the like. Through the structural design, the utility model can facilitate the disassembly and assembly of the reinforcing strip and the case cover 200. In some embodiments, the reinforcing strips and the case cover 200 may be connected by other means, such as, but not limited to, welding, bonding, etc., but not limited to, this embodiment.

As shown in fig. 1, based on the structural design that the first connection portion 321, the case cover 200, and the case 100 are connected via the first connection member C1, in an embodiment of the utility model, the first connection member C1 may correspond to an edge of the case cover 200 and the frame 110 of the case 100, and the first connection member C1 is disposed through the first connection portion 321, the edge of the case cover 200, and the top of the frame 110. Through the structural design, the first connecting piece C1 can be utilized to simultaneously realize the connection and fixation of the box cover 200, the frame 110 and the reinforcing structure 300, thereby being beneficial to reducing the number of parts and simplifying the assembly process. In some embodiments, the first connecting portion 321 of the reinforcement strip may be connected to other positions of the case 100, which is not limited to the present embodiment.

As shown in fig. 2, based on the structural design that the first connector C1 is simultaneously connected to the edge of the case cover 200 and the top of the frame 110, in an embodiment of the present utility model, a sealing structure 130 is provided between the edge of the case cover 200 and the top of the case 100 (e.g., the top of the frame 110), and the sealing structure 130 can achieve sealing between the case cover 200 and the case 100. On this basis, the sealing structure 130 corresponds to the position of the first connecting member C1, whereby the sealing structure 130 may be provided with a relief structure for the first connecting member C1 to pass through. Through the above structural design, the present utility model can avoid the first connecting piece C1 from damaging the sealing structure 130, and ensure the sealing effect between the case 100 and the case cover 200.

Based on the structural design that the sealing structure 130 is disposed between the edge of the case cover 200 and the top of the case 100, in an embodiment of the present utility model, the sealing structure 130 may be a sealing ring. In some embodiments, the sealing structure 130 may also adopt other structures, such as, but not limited to, a sealant layer, etc., but not limited to this embodiment.

Based on the structural design that the seal structure 130 is provided with the avoidance structure through which the first connecting member C1 passes, in an embodiment of the present utility model, the avoidance structure may be an avoidance hole. In some embodiments, other structures, such as but not limited to the avoidance groove, may be used as the avoidance structure, which is not limited to the present embodiment.

As shown in fig. 2, based on the structural design that the case cover 200 and the reinforcing structure 300 are separate structures, in an embodiment of the present utility model, the top surface of the case cover 200 may be formed with a recess structure 210, and at least a portion (e.g., the main body portion 310 and the first connection portion 321) of the reinforcing structure 300 is accommodated in the recess structure 210. Through the above structural design, the present utility model can utilize the concave structure 210 to accommodate the reinforcing structure 300, thereby further improving the connection strength between the reinforcing structure 300 and the case cover 200, and providing a positioning function during the assembly process of the reinforcing structure 300, so as to facilitate installation. In addition, since the boss 220 is formed on the top surface of the partial case cover 200, the present utility model can further reduce the height of the reinforcing structure 300 by using the accommodation of the reinforcing structure 300 by the recess structure 210, thereby reducing the overall height of the battery pack in the height direction, and being beneficial to reducing the space occupation. In addition, the recess structure 210 can also enhance the rigidity of the case cover 200.

As shown in fig. 1 and 4, in an embodiment of the present utility model, the reinforcement structure 300 may further have a second connection portion 322, the second connection portion 322 is connected to an end of the first connection portion 321 remote from the main body portion 310, and the second connection portion 322 and the fitting portion 120 may be connected via a second connection member C2. For example, the second connecting member C2 may be a bolt, a rivet, or the like. For example, when the case 100 is provided with the fitting portion 120, the second connection member C2 is provided to pass through the second connection portion 322 and the fitting portion 120 of the reinforcing structure 300, and the second connection member C2 can also pass through the mounting structure of the vehicle to detachably connect the second connection portion 322, the fitting portion 120 and the mounting structure. In addition, the second connection portion 322 is illustrated as an example of a portion of the end of the reinforcing structure 300, and it should be understood that in some embodiments, the second connection portion 322 may not be a portion of the end of the reinforcing structure 300, that is, one end of the second connection portion 322 may be connected to the first connection portion 321, and the other end may be connected to other portions of the reinforcing structure 300.

As shown in fig. 1 and 4, in an embodiment of the present utility model, the top surface of the case cover 200 has a boss 220, and the edge of the top surface of the case cover 200 is lower than the boss 220. On this basis, the reinforcing structure 300 may have a first profiling bending structure 341, and the first profiling bending structure 341 is located at a connection position between the main body portion 310 and the first connection portion 321, so that the main body portion 310 is attached to the boss 220 and the first connection portion 321 is attached to an edge of the top surface of the case cover 200. Through the structural design, the bonding degree of the reinforcing structure 300 and the case cover 200 in a local area can be further ensured, and the connection strength of the reinforcing structure 300 and the case cover 200 is further improved.

As shown in fig. 1 to 3, in an embodiment of the present utility model, a case 100 is provided with a fitting portion 120. On this basis, the second connection portion 322 of the reinforcing structure 300 may be connected to the fitting portion 120. On this basis, the assembly portion 120 may be an assembly structure for performing a complete vehicle assembly with a mounting structure of an electric vehicle, and the assembly portion 120 and the case 100 are integrally formed. In addition, the assembly portion 120 may be used as a hoisting structure in the process of assembling the battery and the electric vehicle. On this basis, the main body portion 310 of the reinforcing structure 300 may be simultaneously riveted to the edge of the case cover 200 and the top of the case body 100, and the second connection portion 322 may be riveted to the above-mentioned fitting portion 120, for example, the top of the protruding portion. Through the above structural design, the present utility model can further enhance the connection strength between the cover 200 and the case 100, particularly, the assembly portion 120 thereof.

As shown in fig. 1 and 4, still taking the case 100 provided with the fitting portion 120 as an example, in an embodiment of the present utility model, the top surface of the fitting portion 120 may be lower than the top surface of the case cover 200. On this basis, the reinforcing structure 300 may have a second profiling bending structure 342, and the second profiling bending structure 342 is located at the connection position of the first connecting portion 321 and the second connecting portion 322, so that the first connecting portion 321 and the second connecting portion 322 are respectively attached to the top surface of the case cover 200 and the assembling portion 120. Through the above structural design, the present utility model can further ensure the fitting degree of the reinforcing structure 300 to the transition region of the case cover 200, the case body 100 and the assembly portion 120, and further improve the connection strength of the reinforcing structure 300 to the case cover 200 and the case body 100.

As shown in fig. 4 and 5, in an embodiment of the present utility model, the reinforcing structure 300 may have a plurality of channels 330, and the channels 330 are aligned along a direction (e.g., a first direction X shown in the drawings) perpendicular to an extending direction (e.g., a second direction Y shown in the drawings) of the reinforcing structure 300. Through the structural design, the weight of the reinforcing structure 300 can be reduced, and the lightweight design is facilitated. Meanwhile, due to the arrangement of the plurality of channels 330, the reinforcing structure 300 can be bent more easily, and the structural strength of the reinforcing structure 300 can be further improved.

As shown in fig. 5, based on the structural design that the reinforcing structure 300 has a plurality of channels 330, in an embodiment of the present utility model, the reinforcing structure 300 may include an upper plate 301 and a lower plate 302 that are mutually spliced, and the sides of the upper plate 301 and the lower plate 302 facing each other have a plurality of grooves, respectively. Accordingly, after the upper plate 301 and the lower plate 302 are aligned, the grooves of the upper plate 301 and the grooves of the lower plate 302 form a plurality of channels 330 together. Through the above structural design, the present utility model can facilitate the processing and manufacturing of the reinforcing structure 300 with a plurality of channels 330, which is beneficial to reducing the molding difficulty. In some embodiments, when the reinforcing structure 300 includes a plurality of channels 330 and is formed by mutually splicing the upper plate 301 and the lower plate 302, only one of the upper plate 301 and the lower plate 302 may have the plurality of grooves. In other words, in various possible embodiments consistent with the design concept of the present utility model, at least one of the upper plate 301 and the lower plate 302 has a plurality of grooves on a side facing the other one thereof, the plurality of grooves of one of which forms the plurality of channels 330 together with the other one thereof, or the plurality of grooves of one of which forms the plurality of channels 330 together with the plurality of grooves of the other one thereof.

As shown in fig. 5, based on the structural design that the reinforcing structure 300 includes the upper plate 301 and the lower plate 302, in an embodiment of the present utility model, when the reinforcing structure 300 is connected to the case cover 200 and the case body 100 via the connecting members (for example, the first connecting member C1 described above), a protruding rib 3011 is formed between two adjacent grooves of the upper plate 301 or the lower plate 302, and the connecting members may be disposed through the reinforcing structure 300 via the protruding rib 3011. Through the above structural design, the present utility model can avoid the connecting piece passing through the channel 330 of the reinforcing structure 300, and simultaneously, the structural strength of the connecting piece and the connecting part of the reinforcing structure 300 can be further enhanced because the protruding rib 3011 is located between two adjacent grooves (the channel 330).

As shown in fig. 5, based on the structural design of the reinforcing structure 300 that includes the upper plate 301 and the lower plate 302 that are mutually spliced, in an embodiment of the present utility model, the spliced connection manner of the upper plate 301 and the lower plate 302 may be welding, in some embodiments, the spliced connection manner of the upper plate 301 and the lower plate 302 may also be riveting or adhesive connection, etc., and is not limited to this embodiment.

Referring to fig. 7 to 9, a schematic perspective view of a battery pack capable of embodying the principles of the present utility model in another exemplary embodiment is representatively illustrated in fig. 7; fig. 8 representatively illustrates a schematic perspective view of the case cover 200 illustrated in fig. 7; a schematic perspective view of the reinforcing structure 300 shown in fig. 7 is representatively illustrated in fig. 9.

Unlike the embodiment shown in fig. 5, in which the reinforcing structure 300 adopts a structure design in which the upper plate 301 and the lower plate 302 are spliced with each other, as shown in fig. 7 to 9, in an embodiment of the present utility model, the reinforcing structure 300 itself may be an integrally formed plate structure, such as, but not limited to, a steel plate, etc. Through the structural design, the utility model can simplify the structural complexity of the reinforcing structure 300, reduce the number of parts and simplify the assembly process.

Referring to fig. 10 and 11, a schematic perspective view of a battery pack capable of embodying the principles of the present utility model in yet another exemplary embodiment is representatively illustrated in fig. 10; a schematic perspective view of the part of the reinforcing structure 300 shown in fig. 10 is representatively illustrated in fig. 11.

As shown in fig. 10 and 11, in an embodiment of the present utility model, a connection structure for connecting a seat of an electric vehicle may be provided on the body portion 310 of the reinforcement structure 300. Through the structural design, the utility model can further optimize the whole vehicle function fusion of the battery pack and the electric vehicle, is beneficial to saving the number of parts of the electric vehicle and reduces the cost.

Based on the structural design that the reinforcing structure 300 is provided with the connection structure, as shown in fig. 7, in an embodiment of the present utility model, when the reinforcing structure 300 and the case cover 200 are in a separate structure, the connection structure may include a mounting hole 351 formed in the reinforcing structure 300. Through the structural design, the utility model can directly connect the seat by utilizing the mounting hole 351 formed by the connecting structure (such as the main body part 310), avoids adding other first connecting parts, is beneficial to reducing the number of parts, and further reduces the space occupation of the battery pack in the height direction.

As shown in fig. 10 and 11, based on the structural design in which the reinforcing structure 300 is provided with a connection structure, in an embodiment of the present utility model, the connection structure may include a connection plate 352, and the connection plate 352 is connected to the top surface of the body portion 310 of the reinforcing structure 300. On this basis, the seat of the electric vehicle may be mounted on the connection plate 352. Through the structural design, the utility model can facilitate the assembly of the seat and the connecting structure, and simultaneously avoid the influence on the structural strength of the reinforcing structure 300 and the case cover 200 caused by the direct installation of the seat on the reinforcing structure 300.

As shown in fig. 10 and 11, the battery pack according to the present utility model may include a plurality of reinforcing structures 300 based on the structural design in which the reinforcing structures 300 are provided with the connection structures, and the reinforcing structures 300 are arranged at intervals in the arrangement direction (e.g., the first direction X shown in the drawings). On this basis, the connection structure may include a connection plate 352, and the connection plate 352 is connected between the top surfaces of the adjacent two reinforcement structures 300. Through the structural design, the utility model can facilitate the assembly of the seat and the connecting structure, and can improve the connection strength and the structural stability of the connecting structure and the reinforcing structure 300, thereby being beneficial to the reliable assembly of the seat.

As shown in fig. 10 and 11, based on the structural design that the connection plates 352 are connected between two adjacent reinforcing structures 300, in an embodiment of the present utility model, the connection structures may include a plurality of connection plates 352, and the connection plates 352 are arranged at intervals along a direction (e.g., a second direction Y shown in the drawings) perpendicular to the arrangement direction (e.g., a first direction X shown in the drawings). Through the structural design, the utility model can further improve the connection strength and the structural stability of the connection structure and the reinforcing structure 300.

Referring to fig. 12-14, a schematic perspective view of a battery pack in yet another exemplary embodiment that can embody principles of the present utility model is representatively illustrated in fig. 12; fig. 13 representatively illustrates a schematic perspective view of the case cover 200 illustrated in fig. 12; a cross-sectional view of a part of the structure of the battery pack shown in fig. 12 is representatively illustrated in fig. 14.

As shown in fig. 12 to 14, in an embodiment of the present utility model, the reinforcing structure 300 may be non-removably connected to the case cover 200, for example, the reinforcing structure 300 is integrally formed with the case cover 200. Specifically, a rib 230 is formed on the top surface of case cover 200, and an end 240 of rib 230 protrudes from the edge of case cover 200. Accordingly, the portion of the rib 230 located on the case cover 200 is the main body portion 310 of the reinforcing structure 300, and the portion of the rib extending out of the edge of the case cover 200 is the second connecting portion 322 of the reinforcing structure 300. Through the structural design, the utility model can simplify the structural complexity, reduce the number of parts and reduce the assembly difficulty. And, the case cover 200 and the reinforcing structure 300 adopting the integrally formed structure have high structural strength.

Based on the structural design that the reinforcing structure 300 is not detachably connected to the case cover 200, in an embodiment of the present utility model, the main body portion of the reinforcing structure 300 and the case cover 200 may be welded.

In an embodiment of the present utility model, the case 100 has the battery compartment 140 accommodating the battery pack, and the inner space of the battery compartment 140 may be in a penetrating state in another direction (e.g., the first direction X shown in fig. 2) perpendicular to the extending direction (e.g., the second direction Y shown in fig. 2) of the reinforcement structure 300, i.e., the inner space of the battery compartment 140 does not have a shielding structure (e.g., a beam provided in the battery compartment in the related art) in the other direction.

As shown in fig. 6, in an embodiment of the present utility model, the case 100 has a battery compartment 140 for accommodating a battery pack (not shown in the drawings) including a plurality of batteries arranged in a first direction X, and at least two battery packs are arranged in the first direction X, and the battery compartment 140 is a structure penetrating in the first direction X, i.e., a structure in which a cross member or the like for disconnecting an accommodating space thereof in the first direction X is not provided in the battery compartment 140. On the basis of which. The reinforcement structure 300 may extend in a second direction Y perpendicular to the first direction X, and the first connection portion 321 of the reinforcement structure 300 may be located at an end of the body portion 310 in the second direction Y. Because the battery compartment 140 is not provided with the cross beam similar to the prior art, through the structural design, the utility model can utilize the reinforcing structure 300 to compensate the reduction of the structural strength possibly caused by removing the cross beam in the battery box body 100, thereby ensuring that the overall structural strength of the battery pack meets the requirement. Meanwhile, since the battery compartment 140 is not provided with a cross beam, the utility model can further improve the energy density.

Based on the structural design that the battery compartment 140 is perforated in the first direction X, at least two of the battery packs accommodated in the battery compartment 140 may be aligned in the first direction X in an embodiment of the present utility model. In this regard, in the case of providing a plurality of battery packs arranged in the first direction X, a cross member is generally disposed between two adjacent battery packs, the cross member extending in the second direction Y and dividing the battery compartment 140 into a plurality of compartments in the first direction X. In contrast, the present utility model can ensure the overall structural strength of the battery pack on the basis that, for example, the through-hole battery compartment 140 accommodates a plurality of battery packs arranged in the first direction X.

As shown in fig. 6, based on the structural design that the battery compartment 140 is perforated in the first direction X, at least two of the battery packs accommodated in the battery compartment 140 are arranged in the second direction Y in one embodiment of the present utility model. On the basis of this, a separator 150 may be provided in the battery compartment 140, the separator 150 extending in the first direction X, and the separator 150 being located between adjacent two battery packs arranged in the second direction Y. Through the structural design, the utility model can separate two adjacent battery packs arranged along the second direction Y, and can further strengthen the structural strength of the battery pack.

In some embodiments, taking the first direction X and the second direction Y as the azimuth examples, when the battery pack includes a plurality of batteries arranged along the first direction X and at least two battery packs are arranged along the second direction Y, the internal space of the battery compartment 140 may also be in a penetrating form along the second direction Y, and then the reinforcement structure 300 may extend along the first direction X, and the first connection portion 321 may be located at an end of the main body portion 310 along the first direction X. Further, when at least two battery packs are arranged in the first direction X, a separator 150 extending in the second direction may be provided in the battery compartment 140, and the separator 150 is located between adjacent two battery packs arranged in the first direction X.

As shown in fig. 6, based on the structural design that the battery compartment 140 is penetrated along the first direction X, in an embodiment of the present utility model, the case 100 further has an electrical compartment 160, and the electrical compartment 160 is located at a side of the battery compartment 140 along the first direction X. On this basis, an end beam 170 may be provided in the battery compartment 140, which end beam 170 extends in the second direction Y and is located between the battery compartment 140 and the electrical compartment 160. It should be noted that the end beam 170 is different from the cross beam in the above prior art, that is, the end beam 170 does not separate two battery packs arranged along the first direction X, that is, the end beam 170 does not separate the battery compartment 140 along the first direction X. Through the structural design, the end beam 170 can be utilized to separate the battery pack from the electric components, and the structural strength of the battery pack can be further enhanced. In the embodiment shown in fig. 6, the electrical compartment 160 is illustrated as being located on a side surface of the battery compartment 140 along the first direction X, that is, the other direction perpendicular to the extending direction (that is, the second direction Y) of the reinforcement structure 300. It should be appreciated that in some embodiments, when the case 100 has the electrical compartment 160, the electrical compartment 160 may also be located on a side of the battery compartment 140 along the other direction, and an end beam 170 is disposed between the battery compartment 140 and the electrical compartment 160, and the end beam 170 extends along the extending direction.

As shown in fig. 2, in an embodiment of the present utility model, the battery pack according to the present utility model may include a plurality of reinforcing structures 300, and the reinforcing structures 300 may be arranged at intervals in an arrangement direction (e.g., a first direction X shown in the drawings). It should be noted that, for ease of understanding and description, fig. 1 shows only one of the plurality of reinforcing structures 300. Through the structural design, the utility model can further strengthen the connection strength of the case cover 200 and the case body 100, and further improve the stability and safety of the structure of the battery pack. In some embodiments, when there are a plurality of reinforcing structures 300, at least two reinforcing structures 300 may also be arranged side by side, or may be arranged in a cross-over manner. Furthermore, the battery pack according to the present utility model may also include only one reinforcing structure 300, which is not limited to the present embodiment.

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 the reinforcement structure 300, the reinforcement structure 300 includes the main body portion 310 and the first connecting portion 321, the main body portion 310 is located on the top surface of the case cover 200, the first connecting portion 321 is connected to the end portion of the main body portion 310, and the first connecting portion 321 is connected to the case 100. Through the above structural design, the present utility model can enhance the connection strength between the case cover 200 and the case body 100 by using the reinforcement structure 300, thereby improving the structural stability and safety of the battery pack.

Based on the above detailed description of several exemplary embodiments of the battery pack according to the present utility model, when the battery pack according to the present utility model is applied to an electric vehicle, at least a portion of a cover of the battery pack may be exposed to a compartment of the electric vehicle such that the at least a portion of the cover serves as a part of a floor of the compartment. Through the structural design, the utility model can further reduce the number of parts of the electric vehicle, simplify the assembly complexity and reduce the cost.

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 (11)

1. The utility model provides a battery package, its characterized in that includes box, case lid and additional strengthening, the case lid set up in on the box, additional strengthening has main part and first connecting portion, main part is located the top surface of case lid, first connecting portion connect in the tip of main part, first connecting portion connect in the box.

2. The battery pack of claim 1, wherein the body portion of the reinforcement structure is removably connected to the lid.

3. The battery pack of claim 1, further comprising a first connector extending through the first connection portion of the reinforcement structure, the cover, and the case to removably connect the first connection portion, the cover, and the case.

4. The battery pack of claim 3, wherein the first connection part corresponds to an edge of the case cover and a rim of the case body, and the first connection member is penetrated through the first connection part, the edge of the case cover, and a top of the rim.

5. A battery pack according to claim 3, wherein a sealing structure is provided between the case cover and the case body.

6. The battery pack of claim 1, wherein the body portion of the reinforcement structure is non-removably connected to the lid.

7. The battery pack according to claim 6, wherein:

the reinforcing structure and the box cover are of an integrated structure, a convex rib is formed on the top surface of the box cover, and the end part of the convex rib is the first connecting part; or alternatively

The main body part of the reinforcing structure is welded with the case cover.

8. The battery pack according to claim 1, wherein the frame of the case is provided with an assembling portion, the reinforcing structure further has a second connecting portion connected to an end of the first connecting portion remote from the main body portion, the second connecting portion is connected to the assembling portion via a second connecting member, the second connecting member is provided to pass through the second connecting portion and the assembling portion, and the second connecting member is configured to pass through a mounting structure of a vehicle to detachably connect the second connecting portion, the assembling portion, and the mounting structure.

9. The battery pack of claim 1, wherein the top surface of the case cover is formed with a recess structure, and the reinforcement structure is at least partially accommodated in the recess structure.

10. The battery pack according to claim 1, wherein the case has a battery compartment for accommodating the battery pack, and an inner space of the battery compartment is in a penetrating state in the other direction perpendicular to the extending direction of the reinforcing structure.

11. The battery pack of claim 1, further comprising a connection structure connected to the reinforcement structure, the connection structure for removable connection to a seat of a vehicle.