CN210200804U

CN210200804U - Tray of battery pack, battery pack and vehicle

Info

Publication number: CN210200804U
Application number: CN201921285913.7U
Authority: CN
Inventors: Longqing Jie; 杰龙清; Anlong Liu; 刘安龙
Original assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Current assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-03-27
Anticipated expiration: 2029-08-08

Abstract

The application discloses tray, battery package and vehicle of battery package, the tray of battery package includes: the battery pack comprises a base plate and side frames, wherein the base plate and the side frames are formed into a whole through die-casting, the upper surface of the base plate is provided with a plurality of convex reinforcing ribs and at least parts, the reinforcing ribs are provided with first mounting points for mounting the battery pack, the upper surface of the base plate is also provided with mounting bosses for mounting a battery module, and the mounting bosses are connected with the reinforcing ribs. The tray of battery package of this application owing to adopt die-casting integrated into one piece, can guarantee the uniformity of product, improves sealed grade, and through setting up first carry point for the bulk rigidity of tray is big.

Description

Tray of battery pack, battery pack and vehicle

Technical Field

The application belongs to the technical field of battery packs of vehicles, and particularly relates to a tray of a battery pack, the battery pack and a vehicle.

Background

The battery pack is a core part of the electric automobile, the safety protection level of the battery pack directly influences the service life and the working stability of the battery pack, and the requirement of light weight is also taken into consideration under the condition that the protection level of the battery pack is ensured to reach the standard. The tray of the battery pack directly affects its protection level and weight. In the correlation technique, the tray of battery package is a plurality of plate body welding basically and forms, and production efficiency is low, and the carry point that the tray set up influences the rigidity of tray greatly, uses for a long time and can lead to the tray to warp.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art.

One object of the present application is a tray for a battery pack, comprising: the battery pack comprises a base plate and side frames, wherein the base plate and the side frames are formed into a whole through die-casting, the upper surface of the base plate is provided with a plurality of convex reinforcing ribs and at least parts, the reinforcing ribs are provided with first mounting points for mounting the battery pack, the upper surface of the base plate is also provided with mounting bosses for mounting a battery module, and the mounting bosses are connected with the reinforcing ribs.

Because be equipped with first carry point on the strengthening rib, first carry point is located the regional scope of bottom plate promptly, and the suspension of bottom plate department is firm like this, when installing the battery package in the whole car, bottom plate department can receive stable pulling force to offset the decurrent pressure of battery module to the bottom plate, thereby prevent the bottom plate and warp, the global rigidity of tray can be promoted effectively like this.

Die-casting integrated into one piece's tray need not welding process, can not lead to follow-up assembly difficulty or have quality defects such as rosin joint because of welding deformation, and production efficiency is high, and can reduce welding deformation, guarantees the uniformity of product, in addition, because die-casting integrated into one piece's structure makes the gap of this tray few, and sealing grade is high, for example the sealed protection level of this tray can reach IP68 rank, and can keep this sealed grade after batch production.

The tray of battery package of this application embodiment owing to adopt die-casting integrated into one piece, can guarantee the uniformity of product, improves sealed grade, and through setting up first carry point for the bulk rigidity of tray is big.

According to the tray of battery package of an embodiment of this application, the side frame includes end to end consecutive first curb plate, second curb plate, third curb plate and fourth curb plate, the strengthening rib includes the follow the inner wall of first curb plate extends to the first strengthening rib of the inner wall of third curb plate and follow the inner wall of second curb plate extends to the second strengthening rib of the inner wall of fourth curb plate, first carry on some locates on the second strengthening rib, the installation boss including connect in the first installation boss of first strengthening rib.

According to the tray of battery package of an embodiment of this application, the orientation of first strengthening rib the first curb plate reaches the both sides of third curb plate all are connected with first installation boss.

According to the tray of the battery pack of one embodiment of the present application, the first mounting boss is connected to the first reinforcing rib through the connecting arm.

According to the tray of battery package of an embodiment of this application, the strengthening rib still including connect in first curb plate is inboard with the inboard third strengthening rib of third curb plate, the installation boss is including locating the second installation boss of third strengthening rib.

The tray for battery packs according to an embodiment of the present application further includes: the connecting rib is connected with the inner side wall of the first side plate or the inner side wall of the third side plate and connected with the upper surface of the bottom plate, and the inner end of the connecting rib is connected with the third reinforcing rib.

According to the tray of the battery pack, the second mounting points for mounting the battery pack are arranged on the outer sides of the first side plate and the third side plate.

According to the tray of the battery pack, the lower surface of the bottom plate is provided with the latticed outer reinforcing ribs.

The present application also provides a battery pack having a tray as described in any of the above.

The application also provides a vehicle which is characterized by comprising the battery pack.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a pallet according to an embodiment of the present application;

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

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

fig. 4 is a schematic view of the lower surface of the tray according to the embodiment of the present application.

Reference numerals:

the length of the tray 100, the base plate 10,

side frame 20, first side panel 21, second side panel 22, third side panel 23, fourth side panel 24,

a reinforcing rib 30, a first reinforcing rib 31, a second reinforcing rib 32, a third reinforcing rib 33, a connecting rib 34, an outer reinforcing rib 35,

a first mounting point 41, a second mounting point 42,

a mounting boss 50, a first mounting boss 51, and a second mounting boss 52.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

A tray 100 of a battery pack according to an embodiment of the present application, the tray 100 supporting battery modules, is described below with reference to fig. 1 to 4.

As shown in fig. 1, the tray 100 for a battery pack includes: a bottom plate 10 and side frames 20, the side frames 20 being connected to the outer edges of the bottom plate 10 and extending substantially perpendicular to the bottom plate 10, such that the tray 100 forms a box-shaped structure with an open upper end for receiving the battery modules.

The plurality of protruding reinforcing ribs 30 are arranged on the upper surface of the bottom plate 10, and it can be understood that the bottom plate 10 is a large-area plate body, and the reinforcing ribs 30 can enhance the strength and rigidity of the bottom plate 10 and prevent the bottom plate 10 from deforming after supporting the battery module.

The upper surface of the bottom plate 10 is further provided with a mounting boss 50, the mounting boss 50 is used for mounting a battery module, in actual execution, the mounting boss 50 can be provided with a threaded hole, the battery module is fixed on the tray 100 through a threaded fastener in threaded connection with the threaded hole, and the threaded hole can be formed by using an integral machining process and an embedded steel wire thread, so that the mounting accuracy and strength of structural members such as a battery unit are ensured. The mounting bosses 50 are connected to the reinforcing bars 30 so that the structural strength at the mounting bosses 50 is sufficiently high.

At least part of the reinforcing ribs 30 are provided with first mounting points 41, the first mounting points 41 are used for mounting a battery pack, when the battery pack is mounted on the whole vehicle, the threaded connecting piece penetrates through the first mounting points 41 and then is connected with the vehicle body on the upper portion, and as the reinforcing ribs 30 are provided with the first mounting points 41, namely, the first mounting points 41 are located in the region range of the bottom plate 10, the bottom plate 10 can be firmly hung, when the battery pack is mounted on the whole vehicle, the bottom plate 10 can be stably pulled to offset the downward pressure of the battery module on the bottom plate 10, so that the bottom plate 10 is prevented from deforming, and the overall rigidity of the tray 100 can be effectively improved.

Bottom plate 10 and side frame 20 form integratively through die-casting, tray 100 is die-casting integrated into one piece, bottom plate 10, side frame 20, strengthening rib 30, installation boss 50 is die-casting integrated into one piece, like this tray 100 need not welding process, can not lead to follow-up assembly difficulty or have quality defects such as rosin joint because of welding deformation, high production efficiency, and can reduce welding deformation, guarantee the uniformity of product, in addition, because die-casting integrated into one piece's structure makes this tray 100's gap few, sealed grade is high, for example, this tray 100's sealed protection grade can reach IP68 grade, and can keep this sealed grade after the batch production.

The tray 100 of battery package of this application embodiment owing to adopt die-casting integrated into one piece, can guarantee the uniformity of product, improves sealed grade, and through setting up first carry point 41 for the bulk rigidity of tray 100 is big.

In a practical implementation, the tray 100 may be made of aluminum, so that the tray 100 has a light weight and meets the requirements of strength and light weight, the bottom plate 10 may have a thickness of 2.5mm to 3.5mm, and the side frames 20 have a thickness of 3.5mm to 4.5mm, so that the overall strength and rigidity of the tray 100 meet the supporting requirements, and the tray has a light weight. For example, the thickness of the bottom plate 10 may be 3mm, and the thickness of the side frame 20 may be 4 mm.

The upper surface of the base plate 10 is planar and the base plate 10 is machined to ensure the flatness requirements for installation, which facilitates the deployment of the thermal management system.

In some embodiments, side frame 20 includes a first side panel 21, a second side panel 22, a third side panel 23, and a fourth side panel 24 connected end to end in series, i.e., side frame 20 is substantially square frame shaped.

The reinforcing ribs 30 include a first reinforcing rib 31 and a second reinforcing rib 32, the first reinforcing rib 31 extending from the inner wall of the first side plate 21 to the inner wall of the third side plate 23, and the second reinforcing rib 32 extending from the inner wall of the second side plate 22 to the inner wall of the fourth side plate 24. The first mounting points 41 are provided on the second reinforcing ribs 32, and the mounting bosses 50 include first mounting bosses 51 coupled to the first reinforcing ribs 31. Thus, the reinforcing ribs 30 in two different directions are fully utilized, so that the strength and the rigidity of each connecting structure can be met.

As shown in fig. 1, the first mounting points 41 are formed by truncated cone-shaped bosses protruding from the base plate 10, and the truncated cone-shaped bosses are provided with through holes penetrating through the bosses and the base plate 10. The distribution of the first mounting points 41 may be designed according to the weight of the entire battery pack, the rigidity of the entire tray 100, and the like. For example, there is one first reinforcing rib 31, and the first reinforcing rib 31 is provided with first mounting points 41, and the number of the first mounting points 41 may be one or more; or the first reinforcing ribs 31 comprise a plurality of parallel reinforcing ribs, and at least part of the first reinforcing ribs 31 are provided with first mounting points 41; or the first reinforcing ribs 31 comprise a plurality of parallel reinforcing ribs, and each first reinforcing rib 31 is provided with at least one first mounting point 41; in the embodiment shown in fig. 1, the first reinforcing ribs 31 include a plurality of first mounting points 41, and each first reinforcing rib 31 is provided with a plurality of first reinforcing ribs 31, so that rigidity can be improved at a plurality of positions of the entire bottom plate 10 when the battery pack is mounted on the entire vehicle.

As shown in fig. 1 and 4, a second mounting point 42 for mounting the battery pack is provided on the outer side of the first side plate 21 and the third side plate 23. Thus, the combination with the internal first mounting point 41 ensures that the whole battery pack can be stably mounted and the stress at each position is balanced.

As shown in fig. 1 and 2, first mounting bosses 51 are connected to both sides of the first reinforcing rib 31 facing the first side plate 21 and the third side plate 23. It can be understood that different battery modules can be respectively mounted on both sides of the first reinforcing rib 31, and the first mounting bosses 51 are respectively arranged on both sides of the first reinforcing rib to facilitate independent assembly of each battery module.

As shown in fig. 2, the first mounting boss 51 is connected to the first reinforcing rib 31 via a connecting arm. Thus, the first mounting bosses 51 at both sides of the first reinforcing rib 31 can maintain a certain distance, preventing interference of the respective battery modules.

The reinforcing ribs 30 further include third reinforcing ribs 33 connected to the inner sides of the first side plate 21 and the third side plate 23, and the mounting bosses 50 include second mounting bosses 52 provided on the third reinforcing ribs 33. The first mounting bosses 51 are disposed opposite to the second mounting bosses 52 so that both ends of the battery module in this direction can be securely fixed.

As shown in fig. 1 and 3, the tray 100 may further include: the connecting ribs 34, the connecting ribs 34 are connected with the inner side wall of the first side plate 21 or the third side plate 23, the connecting ribs 34 are connected with the upper surface of the bottom plate 10, the connecting ribs 34 can be bent, the connecting ribs 34 are L-shaped, so that the connecting strength of the connecting ribs 34 with the bottom plate 10 and the side frame 20 is high, and the inner ends of the connecting ribs 34 are connected with the third reinforcing ribs 33. The connecting rib 34 is formed integrally with the third reinforcing rib 33 so that the force applied thereto can be transmitted effectively. As shown in fig. 1, part of the connecting rib 34 may also be formed integrally with the second reinforcing rib 32.

As shown in fig. 4, the lower surface of the base plate 10 is provided with outer ribs 35 in a grid pattern. The mesh-shaped outer reinforcement ribs 35 serve to further reinforce the rigidity and strength of the floor panel 10. The specific arrangement positions of the first reinforcing ribs 31, the second reinforcing ribs 32, the third reinforcing ribs 33 and the outer reinforcing ribs 35 can be designed according to CAE simulation results, and the lightweight requirement and the structural strength requirement of the tray 100 are guaranteed through the topology optimization of the tray 100 structure.

The application also discloses a battery pack.

The battery pack of the present application includes: tray 100, upper cover and battery module, tray 100 are the tray 100 of any kind of embodiment above, and the battery module is installed in tray 100, and fixes through installation boss 50, and the upper cover lock is on tray 100, and the mount point is used for installing the battery package in whole car.

The battery pack has the advantages of good sealing performance, high lightweight degree, and excellent strength and rigidity.

The application also discloses a vehicle.

The vehicle of this application has the battery package as above-mentioned any kind of embodiment, and the vehicle of this application can be electric automobile, and the power battery of this electric automobile is regarded as to the battery package, because the lightweight degree of this battery package is high, helps improving whole car continuation of the journey, has its sealing performance good, and intensity and rigidity are all comparatively excellent, help ensureing that the battery stably works.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A tray for a battery pack, comprising: the battery pack comprises a base plate and side frames, wherein the base plate and the side frames are formed into a whole through die-casting, the upper surface of the base plate is provided with a plurality of convex reinforcing ribs and at least parts, the reinforcing ribs are provided with first mounting points for mounting the battery pack, the upper surface of the base plate is also provided with mounting bosses for mounting a battery module, and the mounting bosses are connected with the reinforcing ribs.

2. The tray of battery packs of claim 1, wherein the side frames comprise a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially connected end to end, the reinforcing ribs comprise a first reinforcing rib extending from the inner wall of the first side plate to the inner wall of the third side plate and a second reinforcing rib extending from the inner wall of the second side plate to the inner wall of the fourth side plate, the first hanging points are arranged on the second reinforcing rib, and the mounting bosses comprise first mounting bosses connected to the first reinforcing rib.

3. The tray of battery packs of claim 2, wherein the first mounting bosses are connected to both sides of the first reinforcing rib facing the first side plate and the third side plate.

4. The tray for battery packs of claim 2, wherein the first mounting boss and the first reinforcing rib are connected by a connecting arm.

5. The tray of battery packs of claim 2, wherein the ribs further comprise a third rib connected to an inner side of the first side panel and an inner side of the third side panel, and the mounting bosses comprise second mounting bosses provided on the third rib.

6. The tray of battery packs of claim 5, further comprising: the connecting rib is connected with the inner side wall of the first side plate or the inner side wall of the third side plate and connected with the upper surface of the bottom plate, and the inner end of the connecting rib is connected with the third reinforcing rib.

7. The tray of battery packs of claim 2, wherein the first side plate and the third side plate are provided at outer sides thereof with second mounting points for mounting the battery packs.

8. The tray for battery packs as claimed in any one of claims 1 to 7, wherein the lower surface of the bottom plate is provided with outer ribs in a lattice shape.

9. A battery pack having a tray as claimed in any one of claims 1 to 8.

10. A vehicle characterized by having the battery pack according to claim 9.