CN210805843U

CN210805843U - Battery tray, power battery package and vehicle

Info

Publication number: CN210805843U
Application number: CN201921260648.7U
Authority: CN
Inventors: 熊学军; 陈勇; 万仁涛; 周明平
Original assignee: BYD Co Ltd; Nanjing BYD Automobile Co Ltd
Current assignee: BYD Co Ltd; Nanjing BYD Automobile Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-06-19
Anticipated expiration: 2029-08-05

Abstract

The disclosure relates to a battery tray, a power battery pack and a vehicle. This battery tray includes bottom plate (10), boundary beam (20) and mount pad (30), boundary beam (20) set up bottom plate (10) around and with bottom plate (10) prescribe a limit to jointly and hold the accommodation space that holds battery module or battery cell, mount pad (30) are fixed in boundary beam (20), be used for with battery tray (100) are fixed to the vehicle automobile body on, boundary beam (20) for roll-in spare and with bottom plate (10) welding links to each other, the inside roll-in shaping of boundary beam (20) has additional strengthening. The battery tray has high structural strength and high production efficiency.

Description

Battery tray, power battery package and vehicle

Technical Field

The disclosure relates to the field of electric automobiles, in particular to a battery tray, a power battery pack and a vehicle.

Background

The power battery pack is used as an energy storage device and is a core component of hybrid electric vehicles and electric vehicles. The power battery pack mainly comprises a plurality of battery modules, a battery tray and a cover plate. Generally, a battery tray is mounted on the bottom of an automobile, and a cover plate is hermetically connected to the battery tray and collectively forms a closed space for accommodating a battery module. The existing battery tray mainly adopts an extrusion-molded aluminum alloy battery tray or a iron battery tray which is mainly formed by stamping parts and is formed by welding. The aluminum alloy battery tray and the iron battery tray are low in strength and are easy to deform or collapse when being extruded or collided. And a lot of additional reinforcing members are required for increasing the strength, and the number of parts increases the weight of the battery tray while complicating the production. In addition, taking an iron tray formed by a stamping process as an example, the iron battery tray mainly made of stamping parts has various parts, and a large number of tools such as dies, clamps, check tools and the like are required in the manufacturing process, so that the forming process and the production time are increased.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a battery tray, this battery tray structural strength is big and production efficiency is high.

In order to realize the above-mentioned purpose, this disclosure provides a battery tray, including bottom plate, boundary beam and mount pad, the boundary beam sets up around the bottom plate and with the bottom plate prescribes a limit to hold the accommodation space that holds battery module or battery cell jointly, the mount pad is fixed in the boundary beam, be used for with battery tray is fixed to the vehicle automobile body on, the boundary beam be the roll-in spare and with the bottom plate welding links to each other, the inside roll-in shaping of boundary beam has additional strengthening.

Optionally, the edge beam includes a first edge beam and a second edge beam which are oppositely arranged, two ends of the first edge beam are respectively connected with two adjacent second edge beams in a welding manner, and cross sections of the first edge beam and the second edge beam are the same.

Optionally, an inward extending flange is formed on the inner side of the edge beam, and the periphery of the bottom plate is welded to the upper surface of the flange.

Optionally, the cross section of the side beam is L-shaped and includes a first portion and a second portion configured into the L-shape, the first portion is the flange, the cross section of the second portion is "japanese" shaped and includes a "mouth" shaped outer frame and a "straight" shaped reinforcing plate located inside the "mouth" shaped outer frame, and the reinforcing structure includes the reinforcing plate.

Optionally, the upper surface of the side sill includes a sealing surface for sealing connection with a lid plate provided on the battery tray and a mounting surface for mounting a battery module, the mounting surface being located inside the sealing surface, and the height of the mounting surface in the height direction of the side sill is lower than the height of the sealing surface.

Optionally, the mount seat roll, the mount seat comprising a body portion in the shape of a "female" shape, the body portion comprises a U-shaped shell and a first Z-shaped bracket and a second Z-shaped bracket which are arranged in the U-shaped shell, the U-shaped shell comprises a first side plate, a second side plate and a bottom connecting plate for connecting the first side plate and the second side plate, one end of the first Z-shaped bracket is connected with the first side plate, the other end of the first Z-shaped bracket is welded on the bottom connecting plate, one end of the second Z-shaped bracket is connected with the second side plate, the other end of the second Z-shaped bracket is welded on the bottom connecting plate, the first side plate, the first Z-shaped bracket, the second Z-shaped bracket and the second side plate are respectively provided with a hole to form a mounting hole, and the mounting seat is fixed on the body of a vehicle through the mounting hole.

Optionally, the other end of the first Z-shaped bracket is connected with the other end of the second Z-shaped bracket in an abutting and welding manner.

Optionally, the first Z-shaped bracket includes a first plate, a second plate, and a third plate that are connected in sequence, the first plate is connected to the first side plate, and angles between the first plate and the second plate and between the third plate and the second plate are both greater than 90 °; the second Z-shaped support comprises a fourth plate, a fifth plate and a sixth plate which are sequentially connected, the fourth plate is connected with the second side plate, and angles between the fourth plate and the fifth plate are larger than 90 degrees.

Optionally, the body further includes a connecting sleeve, the first side plate is used for being connected with a vehicle body of a vehicle, and two ends of the connecting sleeve respectively abut against the first side plate and the second plate and surround the mounting hole.

Optionally, the mounting seat further comprises an outer plate, and two ends of the outer plate are respectively connected with the outer surface of the first plate and the outer surface of the fourth plate in a welding manner.

Optionally, the battery tray further includes a module mounting bracket for mounting a module, the module mounting bracket includes a pair of first mounting brackets arranged oppositely, one of the pair of first mounting brackets is connected to one of the first side beams and the bottom plate, the other of the pair of first mounting brackets is connected to the other of the first side beams and the bottom plate, and a first module mounting hole for mounting a battery module is formed in the first mounting bracket.

Optionally, the cross section of the first mounting bracket is in a zigzag shape and comprises an upper horizontal plate, a lower horizontal plate and a vertical plate, wherein the upper horizontal plate and the lower horizontal plate are in the zigzag shape, the vertical plate is arranged between the upper horizontal plate and the lower horizontal plate, the upper horizontal plate is connected with the first edge beam in a welding mode, and the lower horizontal plate is connected with the bottom plate in a welding mode.

Optionally, the battery tray is made of steel material.

According to another aspect of the present disclosure, a power battery pack is provided, which includes a battery module, a cover plate, and the above battery tray, wherein the cover plate is hermetically connected with the battery tray and forms a sealed space for accommodating the battery module.

According to still another aspect of the present disclosure, there is provided a vehicle including the power battery pack described above.

In the battery tray provided by the present disclosure, the edge beam is a rolled piece, and is integrally formed by a rolling process. The rolling process can be applied to materials with higher strength and rigidity, such as steel materials. Therefore, in the present disclosure, when the edge beam of the battery tray is formed by a rolling process, the battery tray is allowed to be made of a material with high strength and rigidity, which is beneficial to improving the strength of the whole battery tray, so that the battery tray is not easy to deform or collapse. Meanwhile, the roll forming can form a complex structure at one time, and can flexibly roll various preset shapes, so that the forming is convenient and the production efficiency is high. In addition, compared with the mode of processing the battery tray by adopting a stamping process in the prior art, various stamping dies can be omitted in the rolling forming process, the process of welding the reinforcing piece on the stamped battery tray is omitted, the production cost is reduced, and the production efficiency is improved. In addition, because the inside roll-in shaping of boundary beam has additional strengthening, can effectively promote the structural strength of boundary beam to promote battery tray's bulk strength.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic front perspective view of a battery tray according to an embodiment of the present disclosure;

fig. 2 is a schematic rear perspective view of a battery tray according to an embodiment of the present disclosure;

fig. 3 is an exploded view of a battery tray according to an embodiment of the present disclosure;

fig. 4 is a schematic view of a half-section structure of a battery tray according to an embodiment of the present disclosure;

fig. 5 is a schematic top view of a battery tray according to an embodiment of the present disclosure, with the mounting base not shown;

FIG. 6 is a cross-sectional schematic view of an edge beam of a battery tray according to an embodiment of the present disclosure;

FIG. 7 is a schematic cross-sectional view of an edge beam of a battery tray according to another embodiment of the present disclosure;

FIG. 8 is a schematic cross-sectional view of an edge beam of a battery tray according to yet another embodiment of the present disclosure;

FIG. 9 is a partial schematic structural view of another embodiment of the present disclosure;

FIG. 10 is a cross-sectional view of the assembled structure of the edge rail, floor and first mounting bracket of one embodiment of the present disclosure;

FIG. 11 is a schematic structural view of a body portion of a mount of one embodiment of the present disclosure;

FIG. 12 is a schematic structural view of a mount of an embodiment of the present disclosure;

fig. 13 is a schematic structural view of a prior art battery tray, wherein the mount structure is not shown;

fig. 14 is a partial cross-sectional structural view of a prior art battery tray;

fig. 15 is a partial structural view of a prior art battery tray;

fig. 16 is a perspective view of a prior art mounting base.

Description of the reference numerals

100-a battery tray; 10-a base plate; 20-a side beam; 21-a first edge beam; 22-a second edge beam; 23-flanging; 231-upper surface of the flange; 24-a second part; 25-sealing surface; 26-a mounting surface; 27-a reinforcement plate; 30-a mounting seat; 301-a body portion; 31-a first Z-shaped stent; 311-a first plate; 312-a second plate; 313-a third plate; 32-a second Z-shaped stent; 321-a fourth plate; 322-fifth plate; 323-a sixth plate; a 33-U shaped housing; 331-a first side panel; 332-a second side plate; 333-bottom connecting plate; 34-mounting holes; 35-connecting sleeves; 302-an outer plate; 40-a first mounting bracket; 41-first module mounting hole; 42-upper horizontal plate; 43-vertical plate; 44-lower horizontal plate; 45-lightening holes; 50-a second mounting bracket; 51-second module mounting holes; 60-a cross beam; 200-prior art battery trays; 210. 220-a plate member; 230. 240, 250-connectors; 260. 270-stamping, P-joint position

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the terms of orientation used, such as "up, down, left, and right" are generally defined with reference to the battery tray 100 being mounted on the vehicle, and generally have the same meaning as the terms of up, down, left, and right in the normal running state of the vehicle. The terms "inside and outside" refer to the inside and outside of the profile of the relevant component. In addition, the terms "first", "second", and the like used in the embodiments of the present disclosure are for distinguishing one element from another, and have no order or importance.

As shown in fig. 1 to 12, according to an aspect of the present disclosure, there is provided a battery tray 100, and the battery tray 100 may include a base plate 10, an edge rail 20, and a mount 30. The edge beam 20 is arranged around the bottom plate 10 and defines a containing space for containing a battery module or a single battery together with the bottom plate 10, the mounting seat 30 is fixed on the edge beam 20 and used for fixing the battery tray 100 on the body of a vehicle, and the edge beam 20 is a rolled piece and is welded with the bottom plate 10. And the interior of the edge sill 20 is roll formed with a reinforcing structure.

In the battery tray 100 provided by the present disclosure, the edge beam 20 is a rolled piece, and is integrally formed by a rolling process. The rolling process can be applied to materials with higher strength and rigidity, such as steel materials. Therefore, in the present disclosure, when the edge beam 20 of the battery tray 100 is formed by a rolling process, the battery tray 100 is allowed to be made of a material with high strength and rigidity, which is beneficial to improving the strength of the whole battery tray 100, so that the battery tray 100 is not easy to deform or collapse. Meanwhile, the roll forming can form a complex structure at one time, and can flexibly roll various preset shapes, so that the forming is convenient and the production efficiency is high. In addition, compared with the mode of processing the battery tray by adopting the stamping process in the prior art, various stamping dies can be omitted in the rolling forming process, the process of welding the reinforcing piece on the stamped battery tray 100 is omitted, the production cost is reduced, and the production efficiency is improved. In addition, since the inside of the side sill 20 is roll-formed with a reinforcing structure, such as a reinforcing plate, the structural strength of the side sill 20 can be effectively improved, thereby improving the overall strength of the battery tray 100.

Here, the edge beam 20 may be rolled and bent at one time to form a frame, or may be formed by connecting beams formed by multi-stage rolling. In one embodiment of the present disclosure, as shown in fig. 1 to 3, the edge beam 20 includes a first edge beam 21 and a second edge beam 22, which are oppositely disposed, and two ends of the first edge beam 21 may be respectively connected to two adjacent second edge beams 22 by welding. Here, the side frame 20 is formed as a separate body, and the first side frame 21 and the second side frame 22 are formed as separately formed rolled parts and then integrally joined together by welding or the like. Thus, in the actual production, when rolling the edge beam 20, for example, when rolling the first edge beam 21, the first edge beam 21 rolling member having a relatively large length can be processed at one time, and then the first edge beam 21 having a desired length can be cut from the first edge beam 21 rolling member according to the size requirement of the battery tray 100 having a desired design. Similarly, the second side rail 22 may be pre-rolled to form a roll and then cut to form the second side rail 22 of the appropriate length as desired. Then, the first and

second side members

21 and 22 and the bottom plate 10 having a suitable size are welded to form the battery tray 100 having a desired size. It can be seen that in the present disclosure, a plurality of first and second side beams 21 and 22 can be rolled out at one time using a rolling process, which greatly improves productivity. Moreover, since the battery tray 100 is cut as needed and based on the characteristics of the rolling process itself, material waste is not easily caused when the battery tray is processed, and the material utilization rate is high.

In the present disclosure, depending on the number of the first and

second side members

21 and 22, a square, T-shaped side member, for example, is obtained. Alternatively, as shown in fig. 3, in one embodiment of the present disclosure, the first and

second side members

21 and 22 are each paired and configured in a square structure, and correspondingly, the floor panel 10 may be a rectangular floor panel 10.

It will be appreciated that in other embodiments of the present disclosure, a square shaped edge beam may be formed by rolling a straight bar and then welded together at the joint.

Further, in one embodiment of the present disclosure, the cross-sections of the first and second side beams 21 and 22 may be the same. Therefore, only one-time roll forming of the rolled parts of the edge beam 20 with one specification is needed, and two sections of the rolled parts are respectively cut to be used as the first edge beam 21 and the second edge beam 22, so that the edge beams 20 with two specifications do not need to be roll formed, the structure of the edge beam 20 is simplified, and meanwhile, the production efficiency is improved. In another embodiment of the present disclosure, in order to facilitate welding of the side sill 20 and the base plate 10, as shown in fig. 4 and 6, a flange 23 extending inward is formed inside the side sill 20, and the periphery of the base plate 10 is welded to an upper surface 231 of the flange 23. By arranging the annular flanging 23, the bottom plate 10 can be placed on the flanging 23 firstly during welding, and the welding is convenient. Moreover, the turned-over edge 23 can play a role of supporting the bottom plate 10, and the reliability of the connection between the edge beam 20 and the bottom plate 10 is ensured to a certain extent. It should be noted that the term "inwardly extending" herein refers to a direction extending toward the center of the base plate 10.

The present disclosure is not limited to the shape of the edge rail 20. In one embodiment, as shown in fig. 6, the side rail 20 has an L-shaped cross section and includes a first portion and a second portion 24 configured in the L-shape, the first portion is a flange 23 as shown in fig. 6, the second portion 24 has a cross section in a shape of a Chinese character ri and includes a frame in a shape of a Chinese character kou and a reinforcing plate 27 in a shape of a Chinese character yi inside the frame in a shape of a Chinese character kou, and the reinforcing structure includes the reinforcing plate 27. By providing the reinforcing plate 27, the strength of the side sill 20 can be effectively improved. Alternatively, a plurality of reinforcing plates 27 may be provided to further improve the strength of the edge beam 20, and a plurality of reinforcing plates 27 may be provided at intervals in the height direction of the edge beam 20, for example, two reinforcing plates 27 may be provided, and the cross section of the edge beam 20 is in a shape of Chinese character 'mu'.

Further, as shown in fig. 6, the upper surface of the edge beam 20 includes a sealing surface 25 for sealing connection with the lid plate provided on the battery tray 100 and a mounting surface 26 for mounting the battery module, the mounting surface 26 is located inside the sealing surface 25, and the height of the mounting surface 26 is lower than the height of the sealing surface 25 in the height direction of the edge beam 20, so that the edge beam 20 mounts the battery module without affecting the sealing connection of the lid plate with the battery module 100. In other embodiments, the sealing surface 25 and the mounting surface 26 may be flush with each other.

When the L-shaped side rail 20 is roll-formed, as shown in fig. 6, a square structure is roll-formed on one side of a plate (e.g., a steel plate), and a square structure corresponding to the flange 23 is roll-formed on the other side of the plate, and the joint positions P of the two are welded together.

It should be noted that in the present disclosure, the edge rail 20 may be configured in any suitable shape as desired. For example, as shown in FIG. 7, in another embodiment of the present disclosure, the second portion 24 of the L-shaped edge rail is "square" shaped; in yet another embodiment of the present disclosure, as shown in fig. 8, the second portion 24 of the L-shaped sill is generally trapezoidal in shape with a large top and a small bottom. In the present disclosure, the edge rail 20 may not be provided with the flange 23, and the bottom plate 10 may be directly welded to the inner side wall or the bottom wall of the edge rail 20.

As shown in fig. 13, the battery tray 200 in the related art is formed of a single plate formed by press molding. In order to increase the strength of the battery tray, a reinforcement is welded around the panel, as shown in fig. 14, in order to increase the anti-extrusion capability, the prior art edge beam needs to be composed of two or

more plate members

210 and 220, which results in a large number of parts and complex processing procedures of the prior art battery tray 200.

As shown in fig. 1, in the present disclosure, both the side sill 20 and the floor panel 10 may be made of steel, and the first side sill 21, the second side sill 22, and the floor panel 10 are welded together. As shown in fig. 6, the reinforcing plate 27 is provided inside the edge beam 20, so that the strength of the battery tray 100 can be ensured, and thus, it is not necessary to add a plurality of reinforcing parts on the outside of the battery tray 200 as in the prior art, which is advantageous to reduce the weight of the battery tray 100.

In addition, as shown in fig. 14, in the battery tray 200 of the related art, the press molding requires a large draft angle of the parts for facilitating the mold release, and occupies a large space. In contrast, the present application uses roll forming, as shown in fig. 6 and 10, the cross-section of the side sill 20 can be formed into a right-angled configuration, so that the space consumption is relatively small.

As shown in fig. 15, in the battery tray 200 of the related art, the structure of parts is complicated at the type corner of the side sill. Generally, the corner positions are formed by connecting the connecting

members

230, 240, 250, etc. and a plurality of sets of stamping dies are required for forming. The stamping and welding time is long, and the production efficiency is low. In the present disclosure, as shown in fig. 3, the first and second side beams 21 and 22 may be side rolled parts having the same cross section, and only one set of rolling dies is required to cut out the first and second side beams 21 and 22 having suitable sizes and weld them. Furthermore, the corner positions of the first and

second side members

21 and 22 can also be bent directly by roll forming to form the structure shown in fig. 9.

As shown in fig. 16, in the battery tray 200 of the prior art, the mounting seat is formed by welding stamping

parts

260 and 270, and the stamping requires multiple stamping and welding processes to complete, which results in low production efficiency. In the present disclosure, the mounting seat 30 may be a rolled piece, and is formed by a rolling process at one time, so that the processing time can be reduced, and the production efficiency is high.

In the present disclosure, the mounting stock 30 is used to mount the pallet to the body of a vehicle, for example to the chassis of the vehicle. Mount 30 may be formed in any suitable configuration and shape. In one embodiment of the present disclosure. As shown in fig. 11, the mounting seat 30 includes a body 301 having a shape of a "concave", the body 301 includes a U-shaped housing 33 and a first Z-shaped bracket 31 and a second Z-shaped bracket 32 disposed in the U-shaped housing 33, the U-shaped housing 33 includes a first side plate 331, a second side plate 332, and a bottom connecting plate 333 connecting the first side plate 331 and the second side plate 332, one end of the first Z-shaped bracket 31 is connected to the first side plate 331, optionally, connected to one end of the first side plate 331 away from the bottom connecting plate 333, the other end of the first Z-shaped bracket 31 is welded to the bottom connecting plate 333, one end of the second Z-shaped bracket 32 is connected to the second side plate 332, optionally, connected to one end of the second side plate 332 away from the bottom connecting plate 333, and the other end of the second Z-shaped bracket 32 is welded to the bottom connecting. The first side plate 331, the first Z-shaped bracket 31, the second Z-shaped bracket 32 and the second side plate 332 are respectively provided with holes to form mounting holes 34, and the mounting base 30 is fixed to the body of the vehicle through the mounting holes 34. During installation, fasteners (e.g., fastening bolts) may be used to pass through the mounting holes 34 and secure the mounting block 30 to the vehicle body. The structural strength of the mounting base 30 can be improved by arranging the two Z-shaped mounting bases, so that the mounting base 30 meets the working requirement of strength.

Further, as shown in fig. 11, the other end (lower end as shown in fig. 11) of the first Z bracket 31 is abutted and welded to the other end (upper end as shown in fig. 11) of the second Z bracket 32. Thus, the structural strength of the whole mounting base 30 can be effectively increased, the deformation resistance of the mounting base 30 is effectively increased, and the stable and reliable mounting of the battery tray 100 on the vehicle body is ensured.

In the present disclosure, the first Z bracket 31 and the second Z bracket 32 may have the same or different structures. In view of the simplified structure, in one embodiment of the present disclosure, the two structures are the same.

As shown in fig. 11, the first Z bracket 31 may include a first plate 311, a second plate 312, and a third plate 313 connected in sequence, the first plate 311 being connected to the first side plate 331, the third plate 313 being connected to the bottom connecting plate 333, the angles between the first plate 311 and the third plate 313 and the second plate 312 being greater than 90 °; the second Z-shaped bracket 32 comprises a fourth plate 321, a fifth plate 322 and a sixth plate 323 which are connected in sequence, the fourth plate 321 is connected with the second side plate 332, the sixth plate 323 is connected with the bottom connecting plate 333, and the angles between the fourth plate 321, the sixth plate 323 and the fifth plate 322 are all larger than 90 °. That is, as shown in fig. 11, the notch of the body 301 having a shape like a Chinese character 'ao' gradually converges from the top to the bottom (where the bottom connecting plate 333 is located), and this structure makes the body 301 less prone to deformation. Which is advantageous to ensure the structural strength of the mount 30.

In addition, as shown in fig. 11, the mounting seat 30 further includes a connecting sleeve 35, the first side plate 331 is used for connecting with a vehicle body of the vehicle, and two ends of the connecting sleeve 35 abut against the first side plate 331 and the second plate 312 respectively and surround the mounting hole 34. By arranging the connecting sleeve 35, the connecting strength between the first side plate 331 and the third side plate is further increased, and meanwhile, a guiding effect is achieved, so that the fastener can conveniently penetrate through the mounting hole 34.

In the present disclosure, the body 301 may be an integrally formed rolling member, which can reduce the forming time and improve the production efficiency. Moreover, as can be seen from the above discussion, the body 301 of the mounting seat 30 can be made of a steel material with a relatively high strength due to the rolling process, so that the structural strength of the mounting seat 30 is ensured, and the reliability of the installation of the battery tray 100 can be improved.

As shown in fig. 12, the mounting base 30 further includes an outer plate 302, and both ends of the outer plate 302 are respectively connected to the outer surface of the first plate 311 and the outer surface of the fourth plate 321 by welding. That is, the outer plate 302 may cover the notch of the body 301 shaped like a Chinese character 'ao' and both ends thereof are welded to the first plate 311 and the fourth plate 321, respectively. The structural strength of the mount 30 can be further improved by providing the outer plate 302.

In the present disclosure, as shown in fig. 1 to 3, the mounting seats 30 may be plural and welded to the side sill 20 at intervals in the circumferential direction. Through setting up a plurality of mount pads 30, a plurality of mount pads 30 can improve the reliability of battery tray 100 installation through linking to each other with the automobile body on the one hand, and on the other hand can correspond the structure of automobile body according to battery tray 100 mounted position, selectively links to each other some in a plurality of mount pads 30 with the automobile body, is favorable to promoting the flexibility of battery tray 100 installation.

In the present disclosure, since the mounting seat 30 and the side rail 20 are of a separate structure, the position of the mounting seat 30 in the height direction of the side rail 20 before welding can be adjusted as required, and for battery trays 100 of different sizes, the mounting surface 26 may not be as high, and the distance from the mounting position of the vehicle body is different, and at this time, the welding position of the mounting seat 30 can be selected in a targeted manner, so that the mounting seat 30 has different mounting heights on the battery tray 100, and the mounting requirements of different battery trays 100 can be met. Similarly, the distance between the mounting seats 30 and the number of the mounting seats 30 may be adjusted according to the size of the battery tray 100 before welding in the circumferential direction of the battery tray 100.

In the present disclosure, the mounting seat 30 may be integrally formed in a long bar shape by a rolling process, and then the mounting seat of a desired size (width) is cut as needed.

It should be noted that in other embodiments of the present disclosure, the mounting seat 30 may also be a lug structure, and the lug structure may be fixed to the edge beam by welding.

In the present disclosure, as shown in fig. 1 to 4, the battery tray 100 further includes a module mounting bracket for mounting a module, the module mounting bracket includes a pair of first mounting brackets 40 disposed opposite to each other, one of the pair of first mounting brackets 40 is connected to one of the first side beams 21 and the bottom plate 10, the other of the pair of first mounting brackets 40 is connected to the other of the first side beams 21 and the bottom plate 10, and a first module mounting hole 41 for mounting a battery module is formed in the first mounting bracket 40. Since the first mounting bracket 40 simultaneously connects the first side rail 21 and the bottom plate 10, it is advantageous to improve the connection reliability of the side rail 20 and the bottom plate 10, thereby increasing the overall strength of the battery tray 100.

In the present disclosure, the first mounting bracket 40 may be formed in any suitable configuration and shape. In one embodiment, as shown in fig. 4 and 10, the first mounting bracket 40 has a zigzag cross-section and includes an upper horizontal plate 42, a lower horizontal plate 44 and a vertical plate 43 disposed between the upper horizontal plate 42 and the lower horizontal plate 44, the upper horizontal plate 42 is welded to the first edge beam 21, the lower horizontal plate 44 is welded to the bottom plate 10, and the mounting bracket is simple in structure and easy to process.

Specifically, as shown in fig. 10, the base plate 10 is first welded to the upper surface 231 of the flange 23 of the side sill 20, and then the upper horizontal plate 42 is welded to the mounting surface 26 of the side sill 20 after the lower horizontal plate 44 is welded to the upper surface of the base plate 10. In the present disclosure, the first mounting bracket 40 may be a rolled piece.

As shown in fig. 1, a plurality of lightening holes 45 may be provided on the first mounting bracket 40 to lighten the weight of the first mounting bracket 40, thereby contributing to the lightening of the battery tray 100.

Further, as shown in fig. 10, the mounting bracket further includes at least one second mounting bracket 50, the second mounting bracket 50 being provided on the base plate 10 (e.g., the middle portion of the base plate 10) to partition the base plate 10 into a plurality of battery module mounting regions, the second mounting bracket 50 being provided with second module mounting holes 51. That is, the second mounting bracket 50 serves as a bracket for mounting the module and also serves as a partition for dividing the base plate 10 into a plurality of battery module mounting regions.

During installation, the upper flanging of the shell of the battery module can be lapped on the first mounting bracket 40 and the second mounting bracket 50, and a fastener is adopted to penetrate through the upper flanging and is matched on the first module mounting hole 41 and the second module mounting hole 51. The present disclosure does not limit the number of the second mounting brackets 50, and in other embodiments of the present disclosure, the second mounting brackets 50 may include longitudinal brackets and lateral brackets extending in the length direction and the width direction of the battery tray 100, respectively. Alternatively, as shown in fig. 1, the second mounting bracket 50 may be one and arranged in parallel with the pair of first mounting brackets 40.

In the present disclosure, the first mounting bracket 40, the second mounting bracket 50, and the bottom plate 10 may be formed by rolling separately or integrally, which is not limited in the present disclosure.

As shown in fig. 2, the battery tray 100 may further include a cross member 60, the cross member 60 being a roll member and both ends of the cross member 60 being fixed to the pair of second side members 22, respectively, and the bottom surface of the base plate 10 being supported on the upper surface of the cross member 60. By providing the cross member 60, the reliability of the connection of the base plate 10 and the side member 20 is ensured, and the structural strength of the battery tray 100 can be increased.

Further, as shown in fig. 2, the cross members 60 may be plural and arranged at intervals along the length direction of the second side member 22, so as to further ensure the reliability of the installation of the bottom plate 10 and the resistance of the entire battery tray 100 against the deformation caused by the pressing.

In the present disclosure, in order to increase the strength of the bottom plate 10 of the battery tray 100, a reinforcing rib may be provided on the bottom plate 10.

According to another aspect of the present disclosure, there is provided a power battery pack including the above battery tray 100, a cover plate hermetically connected with the battery tray 100 and forming a sealed space for accommodating the battery module, and the battery module.

According to another aspect of the present disclosure, there is provided a vehicle including the power battery pack described above.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides a battery tray, its characterized in that includes bottom plate (10), boundary beam (20) and mount pad (30), boundary beam (20) set up bottom plate (10) around and with bottom plate (10) prescribe a limit to hold the accommodation space that holds battery module or battery cell jointly, mount pad (30) are fixed in boundary beam (20), be used for with battery tray (100) are fixed to the vehicle automobile body on, boundary beam (20) for the roll-in spare and with bottom plate (10) welding links to each other, the inside roll-in shaping of boundary beam (20) has additional strengthening.

2. The battery tray as recited in claim 1, wherein the edge beam (20) comprises a first edge beam (21) and a second edge beam (22) which are oppositely arranged, two ends of the first edge beam (21) are respectively connected with two adjacent second edge beams (22) in a welding manner, and the cross sections of the first edge beam (21) and the second edge beams (22) are the same.

3. The battery tray as set forth in claim 1, wherein the inner side of the edge beam (20) is formed with a flange (23) extending inward, and the periphery of the bottom plate (10) is welded to the upper surface (231) of the flange (23).

4. The battery tray as set forth in claim 3, wherein the side frame (20) has an L-shaped cross section and includes a first portion and a second portion (24) configured in the L-shape, the first portion is the flange (23), the second portion (24) has a cross section in a reversed-letter shape and includes a reversed-letter-shaped outer frame and a reinforcing plate (27) in a reversed-letter shape inside the reversed-letter-shaped outer frame, and the reinforcing structure includes the reinforcing plate (27).

5. The battery tray according to claim 1, wherein the upper surface of the edge beam (20) includes a sealing surface (25) for sealing connection with a lid plate provided on the battery tray (100) and a mounting surface (26) for mounting a battery module, the mounting surface (26) is located inside the sealing surface (25), and the height of the mounting surface (26) is lower than the height of the sealing surface (25) in the height direction of the edge beam (20).

6. The battery tray according to any one of claims 1 to 5, wherein the mounting seat (30) is a rolled piece, the mounting seat (30) includes a body portion (301) having a shape of a Chinese character 'ao', the body portion (301) includes a U-shaped housing (33) and first and second Z-shaped brackets (31, 32) provided in the U-shaped housing (33), the U-shaped housing (33) includes a first side plate (331), a second side plate (332), and a bottom connecting plate (333) connecting the first side plate (331) and the second side plate (332), one end of the first Z-shaped bracket (31) is connected to the first side plate (331), the other end of the first Z-shaped bracket (31) is welded to the bottom connecting plate (333), one end of the second Z-shaped bracket (32) is connected to the second side plate (332), the other end of the second Z-shaped bracket (32) is welded on the bottom connecting plate (333), holes are respectively formed in the first side plate (331), the first Z-shaped bracket (31), the second Z-shaped bracket (32) and the second side plate (332) to form a mounting hole (34), and the mounting seat (30) is fixed to the body of a vehicle through the mounting hole (34).

7. The battery tray according to claim 6, characterized in that the other end of the first Z-shaped bracket (31) is abutted and welded with the other end of the second Z-shaped bracket (32).

8. The battery tray according to claim 6, characterized in that the first Z-shaped support (31) comprises a first plate (311), a second plate (312) and a third plate (313) connected in sequence, the first plate (311) being connected to the first side plate (331), the angles between the first plate (311) and the third plate (313) and the second plate (312) being each greater than 90 °; the second Z-shaped support (32) comprises a fourth plate (321), a fifth plate (322) and a sixth plate (323) which are sequentially connected, the fourth plate (321) is connected with the second side plate (332), and angles between the fourth plate (321) and the fifth plate (322) and angles between the sixth plate (323) and the fifth plate (322) are all larger than 90 degrees.

9. The battery tray as claimed in claim 8, wherein the body portion (301) further comprises a connecting sleeve (35), the first side plate (331) is used for connecting with a body of a vehicle, and two ends of the connecting sleeve (35) abut against the first side plate (331) and the second plate (312) respectively and surround the mounting hole (34).

10. The battery tray according to claim 8, wherein the mounting seat (30) further comprises an outer plate (302), and both ends of the outer plate (302) are respectively welded to the outer surface of the first plate (311) and the outer surface of the fourth plate (321).

11. The battery tray according to claim 2, wherein the battery tray (100) further comprises a module mounting bracket for mounting a module, the module mounting bracket comprises a pair of first mounting brackets (40) which are oppositely arranged, one of the pair of first mounting brackets (40) is respectively connected with one of the first side beams (21) and the bottom plate (10), the other of the pair of first mounting brackets (40) is respectively connected with the other of the first side beams (21) and the bottom plate (10), and a first module mounting hole (41) for mounting a battery module is formed in the first mounting bracket (40).

12. The battery tray according to claim 11, wherein the first mounting bracket (40) has a zigzag cross-section and includes an upper horizontal plate (42), a lower horizontal plate (44), and a vertical plate (43) disposed between the upper horizontal plate (42) and the lower horizontal plate (44), the upper horizontal plate (42) is welded to the first edge beam (21), and the lower horizontal plate (44) is welded to the bottom plate (10).

13. The battery tray according to claim 1, characterized in that the battery tray (100) is made of steel material.

14. A power battery pack, comprising a battery module, a cover plate, and the battery tray (100) of any one of claims 1 to 13, wherein the cover plate is hermetically connected to the battery tray (100) and forms a sealed space for accommodating the battery module.

15. A vehicle comprising the power battery pack of claim 14.