Battery shell, battery pack and new energy automobile

Abstract

The embodiment of the utility model provides a battery case, a battery pack and a new energy automobile, and relates to the technical field of power batteries. The battery shell comprises a shell body and a side edge beam assembly, transverse reinforcing convex ribs and longitudinal reinforcing convex ribs are arranged on the bottom wall of the shell body, and the transverse reinforcing convex ribs are connected with the longitudinal reinforcing convex ribs; the side edge beam assembly comprises a first transverse edge beam, a first longitudinal edge beam, a second transverse edge beam and a second longitudinal edge beam which are sequentially connected end to end. The first transverse edge beam, the first longitudinal edge beam, the second transverse edge beam and the second longitudinal edge beam are all arranged in the shell. The first transverse edge beam and the second transverse edge beam are connected with the two ends of the longitudinal reinforcing convex rib respectively, and the first longitudinal edge beam and the second longitudinal edge beam are connected with the two ends of the transverse reinforcing convex rib respectively. The battery case can reduce the cost and improve the energy density of the whole pack.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and in particular to a battery shell, a battery pack and a new energy vehicle. Background Art

[0002] In the power battery industry, the design of battery pack housings for new energy vehicles must not only ensure the structural strength and safety protection of the battery system itself, but also serve as a major component of the vehicle's rigid framework. Currently, to ensure housing rigidity and installation requirements, battery housings typically require numerous reinforcing structural members, which are welded to the inside and outside of the housing in a specific arrangement.

[0003] However, this existing setting method, on the one hand, leads to higher mold development and production costs; on the other hand, the larger number of reinforcing structural parts reduces the internal space of the shell to a certain extent, thereby reducing the overall energy density of the battery pack. Utility Model Content

[0004] The purpose of the present utility model is to provide a battery shell, a battery pack and a new energy vehicle, which can reduce costs and improve the energy density of the entire pack.

[0005] The embodiment of the present utility model is achieved as follows:

[0006] In a first aspect, the present invention provides a battery case, comprising:

[0007] A shell, wherein the bottom wall of the shell is provided with transverse reinforcing ribs and longitudinal reinforcing ribs, wherein the transverse reinforcing ribs are connected to the longitudinal reinforcing ribs; and

[0008] A side beam assembly, wherein the side beam assembly includes a first transverse side beam, a first longitudinal side beam, a second transverse side beam and a second longitudinal side beam connected end to end in sequence, wherein the first transverse side beam, the first longitudinal side beam, the second transverse side beam and the second longitudinal side beam are all arranged in the shell; the first transverse side beam and the second transverse side beam are respectively connected to the two ends of the longitudinal reinforcing rib, and the first longitudinal side beam and the second longitudinal side beam are respectively connected to the two ends of the transverse reinforcing rib.

[0009] In an optional embodiment, both ends of the transverse reinforcing rib extend to opposite side walls of the shell, and both ends of the longitudinal reinforcing rib extend to opposite side walls of the shell.

[0010] In an optional embodiment, there are multiple transverse reinforcing ribs, the multiple transverse reinforcing ribs are arranged at intervals, the first longitudinal side beam is simultaneously connected to one end of the multiple transverse reinforcing ribs, and the second longitudinal side beam is simultaneously connected to the other ends of the multiple transverse reinforcing ribs; and / or,

[0011] There are multiple longitudinal reinforcing ribs, and the multiple longitudinal reinforcing ribs are arranged at intervals. The first transverse side beam is simultaneously connected to one end of the multiple longitudinal reinforcing ribs, and the second transverse side beam is simultaneously connected to the other end of the multiple longitudinal reinforcing ribs.

[0012] In an optional embodiment, the first transverse side beam and the second transverse side beam are both used to mount a battery module;

[0013] The first transverse side beam, the first longitudinal side beam, the second transverse side beam and the second longitudinal side beam are all welded to the inner side wall and the bottom wall of the shell at the same time, and one end of the first longitudinal side beam is welded to the side of the first transverse side beam away from the bottom wall of the shell, and the other end of the first longitudinal side beam is welded to the side of the second transverse side beam away from the bottom wall of the shell; one end of the second longitudinal side beam is welded to the side of the first transverse side beam away from the bottom wall of the shell, and the other end of the second longitudinal side beam is welded to the side of the second transverse side beam away from the bottom wall of the shell.

[0014] In an optional embodiment, the battery case further includes a first hanging ear, a second hanging ear, a third hanging ear, and a fourth hanging ear, wherein the first hanging ear, the second hanging ear, the third hanging ear, and the fourth hanging ear are respectively provided on the outer side walls around the shell;

[0015] Wherein, the first lifting lug is arranged opposite to the third lifting lug, and the second lifting lug is arranged opposite to the fourth lifting lug.

[0016] In an optional embodiment, the bottom wall of the shell is further provided with a first hanging point reinforcement rib and a second hanging point reinforcement rib, and the first hanging point reinforcement rib is connected to the second hanging point reinforcement rib; the first hanging point reinforcement rib extends along the spacing direction between the first hanging ear and the third hanging ear, and the second hanging point reinforcement rib extends along the spacing direction between the second hanging ear and the fourth hanging ear.

[0017] In an optional embodiment, the number of the first lifting ears and the number of the third lifting ears are both multiple, the multiple first lifting ears are arranged at intervals, the multiple third lifting ears are arranged at intervals, and correspond one-to-one with the multiple first lifting ears; the number of the first hanging point reinforcement ribs is multiple, the multiple first hanging point reinforcement ribs are arranged at intervals, and each of the first hanging point reinforcement ribs corresponds to a set of one-to-one corresponding first lifting ears and third lifting ears; and / or,

[0018] The number of the second lifting ears and the fourth lifting ears are both multiple, the multiple second lifting ears are arranged at intervals, the multiple fourth lifting ears are arranged at intervals, and correspond one-to-one to the multiple second lifting ears; the number of the second hanging point reinforcement ribs is multiple, the multiple second hanging point reinforcement ribs are arranged at intervals, and each second hanging point reinforcement rib corresponds to a group of one-to-one corresponding second lifting ears and fourth lifting ears.

[0019] In an optional embodiment, one end of the first lifting ear, one end of the second lifting ear, one end of the third lifting ear, and one end of the fourth lifting ear respectively extend from the outer side walls around the shell to the bottom wall of the shell.

[0020] In a second aspect, the present invention provides a battery pack comprising the battery shell described in any one of the aforementioned embodiments.

[0021] In a third aspect, the present invention provides a new energy vehicle comprising the battery pack described in the aforementioned embodiment.

[0022] The beneficial effects of the embodiments of the present utility model include:

[0023] The battery shell includes a shell and a side beam assembly. The bottom wall of the shell is provided with a transverse reinforcing rib and a longitudinal reinforcing rib, and the transverse reinforcing rib is connected to the longitudinal reinforcing rib; the side beam assembly includes a first transverse side beam, a first longitudinal side beam, a second transverse side beam and a second longitudinal side beam connected end to end in sequence, and the first transverse side beam, the first longitudinal side beam, the second transverse side beam and the second longitudinal side beam are all arranged in the shell; the first transverse side beam and the second transverse side beam are respectively connected to the two ends of the longitudinal reinforcing rib, and the first longitudinal side beam and the second longitudinal side beam are respectively connected to the two ends of the transverse reinforcing rib.

[0024] By setting transverse reinforcing ribs and longitudinal reinforcing ribs, the structural strength of the shell in the transverse and longitudinal directions can be improved, and by connecting the first transverse side beam, the first longitudinal side beam, the second transverse side beam and the second longitudinal side beam in sequence to form a frame structure, which is respectively connected and fixed with the transverse reinforcing ribs and the longitudinal reinforcing ribs to form a unified whole, the overall structural strength of the battery shell can be improved; at the same time, since the side beam assembly is set at the side position of the shell, the number of reinforcing structural parts set on the shell can be reduced, thereby reducing costs, and increasing the space inside the shell and ensuring the flatness of the bottom wall of the shell, thereby improving the energy density of the entire package.

[0025] The battery pack includes a battery case, which has all the benefits of the battery case.

[0026] The new energy vehicle includes a battery pack, which has all the beneficial effects of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the structure of a new energy vehicle provided by an embodiment of the present utility model;

[0029] Figure 2 A schematic structural diagram of a battery case from a first perspective provided by an embodiment of the present invention;

[0030] Figure 3 A schematic structural diagram of a battery case from a second perspective provided by an embodiment of the present utility model;

[0031] Figure 4 This is an exploded view of the battery case provided in an embodiment of the present invention.

[0032] Icons: 1000-new energy vehicle; 1100-battery pack; 100-battery shell; 10-shell; 11-transverse reinforcing rib; 12-longitudinal reinforcing rib; 13-first lifting point reinforcing rib; 14-second lifting point reinforcing rib; 20-side beam assembly; 21-first transverse side beam; 22-first longitudinal side beam; 23-second transverse side beam; 24-second longitudinal side beam; 31-first lifting ear; 32-second lifting ear; 33-third lifting ear; 34-fourth lifting ear; 341-lifting ear upper bracket; 342-lifting ear lower bracket; 1200-vehicle body. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0038] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0039] As described in the background, to ensure housing rigidity and installation requirements, battery cases typically require numerous reinforcing members, which are welded to the inside and outside of the housing in a specific arrangement. However, this existing arrangement results in high mold development and production costs. Furthermore, the increased number of reinforcing members reduces the internal space of the housing, thereby reducing the overall energy density of the battery pack.

[0040] Based on this, please refer to Figures 1-4 The embodiments of the present invention provide a battery case 100, a battery pack 1100, and a new energy vehicle 1000 that can effectively address the aforementioned technical issues, namely, they can reduce costs and increase the energy density of the entire pack. The battery case 100, battery pack 1100, and new energy vehicle 1000 are described in detail below.

[0041] Please refer to Figure 1 , Figure 1 The structural diagram of the new energy vehicle 1000 provided in this embodiment is combined with Figure 1 The new energy vehicle 1000 includes a battery pack 1100 and a vehicle body 1200 . The battery pack 1100 is disposed on the vehicle body 1200 to provide electrical energy to the vehicle body 1200 to realize various functions of the vehicle body 1200 .

[0042] Specifically in this embodiment, the battery pack 1100 includes a battery shell 100 and a battery module. The battery module is disposed in the battery shell 100. It is easy to understand that the battery module serves as an energy source for providing electrical energy to the vehicle body 1200.

[0043] It should be noted that, in some other embodiments, the battery pack 1100 may not include a battery module, but may be a module-free battery pack 1100 structure, in which the battery cells are directly placed in the battery shell 100 and fixed with structural parts.

[0044] In addition, it is easy for those skilled in the art to know that the battery pack 1100 may also include other structures such as a battery management system and a liquid cooling system, which will not be described in detail in this embodiment.

[0045] Please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic structural diagram of the battery case 100 provided in this embodiment from a first perspective. Figure 3 A schematic diagram of the structure of the battery case 100 provided in this embodiment from a second perspective, combined with Figure 2 and Figure 3The battery shell 100 includes a shell 10 and a side beam assembly 20. The bottom wall of the shell 10 is provided with a transverse reinforcing rib 11 and a longitudinal reinforcing rib 12, and the transverse reinforcing rib 11 is connected to the longitudinal reinforcing rib 12; the side beam assembly 20 includes a first transverse side beam 21, a first longitudinal side beam 22, a second transverse side beam 23 and a second longitudinal side beam 24 connected end to end in sequence, and the first transverse side beam 21, the first longitudinal side beam 22, the second transverse side beam 23 and the second longitudinal side beam 24 are all arranged in the shell 10; the first transverse side beam 21 and the second transverse side beam 23 are respectively connected to the two ends of the longitudinal reinforcing rib 12, and the first longitudinal side beam 22 and the second longitudinal side beam 24 are respectively connected to the two ends of the transverse reinforcing rib 11.

[0046] By setting the transverse reinforcing ribs 11 and the longitudinal reinforcing ribs 12, the structural strength of the shell 10 in the transverse and longitudinal directions can be improved, and the frame structure composed of the first transverse side beam 21, the first longitudinal side beam 22, the second transverse side beam 23 and the second longitudinal side beam 24 connected end to end in sequence is respectively connected and fixed to the transverse reinforcing ribs 11 and the longitudinal reinforcing ribs 12 to form a unified whole, thereby improving the overall structural strength of the battery shell 100; at the same time, since the side beam assembly 20 is set at the side position of the shell 10, the number of reinforcing structural parts set in the shell 10 can be reduced, thereby reducing the cost, and increasing the space inside the shell 10 and ensuring the flatness of the bottom wall of the shell 10, thereby improving the energy density of the whole package.

[0047] Furthermore, both ends of the transverse reinforcing rib 11 extend to opposite side walls of the housing 10, and both ends of the longitudinal reinforcing rib 12 extend to opposite side walls of the housing 10. In other words, the transverse reinforcing rib 11 and the longitudinal reinforcing rib 12 extend to the side elevations of the housing 10, thereby reducing the tensile rebound of the housing 10 and further improving the structural strength.

[0048] Of course, in order to improve the overall structural strength, the number of transverse reinforcing ribs 11 can be multiple, and multiple transverse reinforcing ribs 11 are arranged at intervals. The first longitudinal side beam 22 is simultaneously connected to one end of the multiple transverse reinforcing ribs 11, and the second longitudinal side beam 24 is simultaneously connected to the other end of the multiple transverse reinforcing ribs 11; the number of longitudinal reinforcing ribs 12 can also be multiple, and multiple longitudinal reinforcing ribs 12 are arranged at intervals. The first transverse side beam 21 is simultaneously connected to one end of the multiple longitudinal reinforcing ribs 12, and the second transverse side beam 23 is simultaneously connected to the other end of the multiple longitudinal reinforcing ribs 12.

[0049] It should be noted that, in this embodiment, the number of transverse reinforcing ribs 11 is one, and the number of longitudinal reinforcing ribs 12 is two. Of course, in other embodiments, the number of transverse reinforcing ribs 11 may also be two or three, and the number of longitudinal reinforcing ribs 12 may also be three or four, and the specific number of the two needs to be determined according to actual design requirements.

[0050] In addition, it should be noted that in this embodiment, the first transverse side beam 21 and the second transverse side beam 23 are both used as module fixing beams for installing the battery module. Therefore, in order to improve the stability of the battery module after installation, please refer to Figure 4 , Figure 4 The exploded view of the battery case 100 provided in this embodiment is combined with Figure 2-Figure 4 The first transverse side beam 21, the first longitudinal side beam 22, the second transverse side beam 23 and the second longitudinal side beam 24 are all welded to the inner side wall and the bottom wall of the shell 10 at the same time, and one end of the first longitudinal side beam 22 is welded to the side of the first transverse side beam 21 away from the bottom wall of the shell 10, and the other end of the first longitudinal side beam 22 is welded to the side of the second transverse side beam 23 away from the bottom wall of the shell 10; one end of the second longitudinal side beam 24 is welded to the side of the first transverse side beam 21 away from the bottom wall of the shell 10, and the other end of the second longitudinal side beam 24 is welded to the side of the second transverse side beam 23 away from the bottom wall of the shell 10.

[0051] That is to say, in the process of welding the side beam assembly 20 to the shell 10, first, the first transverse side beam 21 and the second transverse side beam 23 are welded to the inner side wall and bottom wall of the shell 10, and at the same time are welded to the longitudinal reinforcing rib 12; then, the two ends of the first longitudinal side beam 22 are respectively installed on one end of the first transverse side beam 21 and the second transverse side beam 23 and welded, and the two ends of the second longitudinal side beam 24 are respectively installed on the other end of the first transverse side beam 21 and the second transverse side beam 23 and welded; and, similarly, the first longitudinal side beam 22 and the second longitudinal side beam 24 are also welded to the inner side wall and bottom wall of the shell 10.

[0052] It can be understood that by stacking and welding different side beams, that is, the two ends of the first transverse side beam 21 are respectively located between the first longitudinal side beam 22 and the second longitudinal side beam 24 and the shell 10, and the two ends of the second transverse side beam 23 are also respectively located between the first longitudinal side beam 22 and the second longitudinal side beam 24 and the shell 10, thereby making the structure of the first transverse side beam 21 and the second transverse side beam 23 more stable, and when the battery module is installed with the two, the installation stability of the battery module can also be correspondingly improved.

[0053] Please continue to combine Figure 2 and Figure 3In order to facilitate the lifting of the shell 10, in this embodiment, the battery shell 100 further includes a first lifting ear 31, a second lifting ear 32, a third lifting ear 33 and a fourth lifting ear 34. The first lifting ear 31, the second lifting ear 32, the third lifting ear 33 and the fourth lifting ear 34 are respectively arranged on the outer side walls around the shell 10; wherein the first lifting ear 31 and the third lifting ear 33 are arranged opposite to each other, and the second lifting ear 32 and the fourth lifting ear 34 are arranged opposite to each other.

[0054] Furthermore, in order to improve the strength of the hanging point corresponding to the hanging ear, the bottom wall of the shell 10 is also provided with a first hanging point reinforcement rib 13 and a second hanging point reinforcement rib 14, and the first hanging point reinforcement rib 13 is connected to the second hanging point reinforcement rib 14; the first hanging point reinforcement rib 13 is extended along the spacing direction of the first hanging ear 31 and the third hanging ear 33, and the second hanging point reinforcement rib 14 is extended along the spacing direction of the second hanging ear 32 and the fourth hanging ear 34.

[0055] It should be noted that the ends of the first suspension point reinforcement rib 13 correspond to the first and third suspension lugs 31 and 33, respectively, while the ends of the second suspension point reinforcement rib 14 correspond to the second and fourth suspension lugs 32 and 34, respectively. This corresponding or symmetrical arrangement of the extension directions balances the anisotropy and shrinkage differences of the shell 10, thereby improving the strength of the suspension points. Furthermore, the provision of the first and second suspension point reinforcement ribs 13, 14 also cooperates with the transverse reinforcement ribs 11 and longitudinal reinforcement ribs 12 to further enhance structural strength.

[0056] In addition, it should be noted that the transverse reinforcement rib 11 , the longitudinal reinforcement rib 12 , the first hanging point reinforcement rib 13 and the second hanging point reinforcement rib 14 can all be formed on the bottom wall of the shell 10 by stamping.

[0057] In order to further improve the strength of the hanging point, the number of the first hanging ears 31 and the third hanging ears 33 are both multiple, and the multiple first hanging ears 31 are arranged at intervals, and the multiple third hanging ears 33 are arranged at intervals, and correspond one-to-one to the multiple first hanging ears 31; the number of the first hanging point reinforcement ribs 13 is multiple, and the multiple first hanging point reinforcement ribs 13 are arranged at intervals, and each first hanging point reinforcement rib 13 corresponds to a group of one-to-one corresponding first hanging ears 31 and third hanging ears 33; the number of the second hanging ears 32 and the fourth hanging ears 34 are both multiple, and the multiple second hanging ears 32 are arranged at intervals, and the multiple fourth hanging ears 34 are arranged at intervals, and correspond one-to-one to the multiple second hanging ears 32; the number of the second hanging point reinforcement ribs 14 is multiple, and the multiple second hanging point reinforcement ribs 14 are arranged at intervals, and each second hanging point reinforcement rib 14 corresponds to a group of one-to-one corresponding second hanging ears 32 and fourth hanging ears 34.

[0058] It should be noted that in this embodiment, the number of the first lifting eye 31 and the third lifting eye 33 is one, while the number of the second lifting eye 32 and the fourth lifting eye 34 is two. Correspondingly, the number of the first hanging point reinforcement rib 13 is one, while the number of the second hanging point reinforcement rib 14 is two. Of course, in other embodiments, the number of the first lifting eye 31 and the third lifting eye 33 can also be two or three, etc., and the corresponding number of the first hanging point reinforcement rib 13 can also be two or three, etc.; the number of the second lifting eye 32 and the fourth lifting eye 34 can also be three or four, etc., and the corresponding number of the second hanging point reinforcement rib 14 can also be three or four, etc.

[0059] In addition, if Figure 2 As shown, specifically in this embodiment, the two second hanging point reinforcement ribs 14 are symmetrically arranged along the extension direction of the transverse reinforcement rib 11, and the two longitudinal reinforcement ribs 12 are symmetrically arranged along the extension direction of the first hanging point reinforcement rib 13, thereby further improving the overall structural strength of the battery shell 100.

[0060] In order to improve the connection stability between the ear and the shell 10, in this embodiment, one end of the first ear 31, one end of the second ear 32, one end of the third ear 33 and one end of the fourth ear 34 extend from the outer walls around the shell 10 to the bottom wall of the shell 10 respectively.

[0061] Further, please continue to combine Figure 3 It should be noted that in this embodiment, the first lifting eye 31, the second lifting eye 32, the third lifting eye 33, and the fourth lifting eye 34 have the same structure. Taking the fourth lifting eye 34 as an example, specifically, the fourth lifting eye 34 includes an upper lifting eye bracket 341 and a lower lifting eye bracket 342. The upper lifting eye bracket 341 is welded to the outer wall of the shell 10, and the lower lifting eye bracket 342 is welded to the bottom wall of the shell 10 and is also welded to the upper lifting eye bracket 341. By welding the upper lifting eye bracket 341 and the lower lifting eye bracket 342 to different positions of the shell 10, the overall connection stability of the lifting eye is improved.

[0062] To sum up, an embodiment of the present invention provides a battery shell 100, a battery pack 1100 and a new energy vehicle 1000, wherein the battery shell 100 includes a shell 10 and a side beam assembly 20, wherein the bottom wall of the shell 10 is provided with a transverse reinforcing rib 11 and a longitudinal reinforcing rib 12, and the transverse reinforcing rib 11 is connected to the longitudinal reinforcing rib 12; the side beam assembly 20 includes a first transverse side beam 21, a first longitudinal side beam 22, a second transverse side beam 23 and a second longitudinal side beam 24 connected end to end in sequence, and the first transverse side beam 21, the first longitudinal side beam 22, the second transverse side beam 23 and the second longitudinal side beam 24 are all arranged in the shell 10; the first transverse side beam 21 and the second transverse side beam 23 are respectively connected to the two ends of the longitudinal reinforcing rib 12, and the first longitudinal side beam 22 and the second longitudinal side beam 24 are respectively connected to the two ends of the transverse reinforcing rib 11.

[0063] That is to say, by setting the transverse reinforcing ribs 11 and the longitudinal reinforcing ribs 12, the structural strength of the shell 10 in the transverse and longitudinal directions can be improved, and by connecting the first transverse side beam 21, the first longitudinal side beam 22, the second transverse side beam 23 and the second longitudinal side beam 24 in sequence to form a frame structure, which is respectively connected and fixed to the transverse reinforcing ribs 11 and the longitudinal reinforcing ribs 12 to form a unified whole, the overall structural strength of the battery shell 100 can be improved; at the same time, since the side beam assembly 20 is set at the side position of the shell 10, the number of reinforcing structural parts set in the shell 10 can be reduced, thereby reducing costs, and increasing the space inside the shell 10 and ensuring the flatness of the bottom wall of the shell 10, thereby improving the energy density of the entire package.

[0064] The battery pack 1100 includes the battery case 100 and has all the functions and benefits of the battery case 100 .

[0065] The new energy vehicle 1000 includes a battery pack 1100 , which has all the functions and beneficial effects of the battery pack 1100 .

[0066] The above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A battery shell, characterized in that: include: A shell (10), wherein the bottom wall of the shell (10) is provided with a transverse reinforcing rib (11) and a longitudinal reinforcing rib (12), wherein the transverse reinforcing rib (11) is connected to the longitudinal reinforcing rib (12); and A side beam assembly (20), the side beam assembly (20) comprising a first transverse side beam (21), a first longitudinal side beam (22), a second transverse side beam (23) and a second longitudinal side beam (24) connected end to end in sequence, the first transverse side beam (21), the first longitudinal side beam (22), the second transverse side beam (23) and the second longitudinal side beam (24) being all arranged in the shell (10); the first transverse side beam (21) and the second transverse side beam (23) being respectively connected to the two ends of the longitudinal reinforcing rib (12), and the first longitudinal side beam (22) and the second longitudinal side beam (24) being respectively connected to the two ends of the transverse reinforcing rib (11).

2. The battery case according to claim 1, wherein Both ends of the transverse reinforcing rib (11) extend to opposite side walls of the shell (10), and both ends of the longitudinal reinforcing rib (12) extend to opposite side walls of the shell (10).

3. The battery case according to claim 1, wherein: The number of the transverse reinforcing ribs (11) is multiple, the multiple transverse reinforcing ribs (11) are arranged at intervals, the first longitudinal side beam (22) is simultaneously connected to one end of the multiple transverse reinforcing ribs (11), and the second longitudinal side beam (24) is simultaneously connected to the other end of the multiple transverse reinforcing ribs (11); and / or, The number of the longitudinal reinforcing ribs (12) is multiple, and the multiple longitudinal reinforcing ribs (12) are arranged at intervals. The first transverse side beam (21) is simultaneously connected to one end of the multiple longitudinal reinforcing ribs (12), and the second transverse side beam (23) is simultaneously connected to the other end of the multiple longitudinal reinforcing ribs (12).

4. The battery case according to claim 1, wherein: The first transverse side beam (21) and the second transverse side beam (23) are both used for mounting battery modules; The first transverse side beam (21), the first longitudinal side beam (22), the second transverse side beam (23) and the second longitudinal side beam (24) are all welded to the inner side wall and the bottom wall of the shell (10) at the same time, and one end of the first longitudinal side beam (22) is welded to the side of the first transverse side beam (21) away from the bottom wall of the shell (10), and the other end of the first longitudinal side beam (22) is welded to the side of the second transverse side beam (23) away from the bottom wall of the shell (10); one end of the second longitudinal side beam (24) is welded to the side of the first transverse side beam (21) away from the bottom wall of the shell (10), and the other end of the second longitudinal side beam (24) is welded to the side of the second transverse side beam (23) away from the bottom wall of the shell (10).

5. The battery case according to claim 1, wherein: The battery shell (100) further comprises a first hanging ear (31), a second hanging ear (32), a third hanging ear (33) and a fourth hanging ear (34), wherein the first hanging ear (31), the second hanging ear (32), the third hanging ear (33) and the fourth hanging ear (34) are respectively arranged on the outer side walls around the shell (10); The first lifting lug (31) is arranged opposite to the third lifting lug (33), and the second lifting lug (32) is arranged opposite to the fourth lifting lug (34).

6. The battery case according to claim 5, characterized in that The bottom wall of the shell (10) is further provided with a first hanging point reinforcement rib (13) and a second hanging point reinforcement rib (14), wherein the first hanging point reinforcement rib (13) is connected to the second hanging point reinforcement rib (14); the first hanging point reinforcement rib (13) is extended along the spacing direction between the first hanging ear (31) and the third hanging ear (33), and the second hanging point reinforcement rib (14) is extended along the spacing direction between the second hanging ear (32) and the fourth hanging ear (34).

7. The battery case according to claim 6, wherein: The number of the first hanging ears (31) and the third hanging ears (33) are both multiple, the multiple first hanging ears (31) are arranged at intervals, the multiple third hanging ears (33) are arranged at intervals, and correspond one-to-one with the multiple first hanging ears (31); the number of the first hanging point reinforcement ribs (13) is multiple, the multiple first hanging point reinforcement ribs (13) are arranged at intervals, and each of the first hanging point reinforcement ribs (13) corresponds to a group of one-to-one corresponding first hanging ears (31) and the third hanging ears (33); and / or, The number of the second hanging ears (32) and the fourth hanging ears (34) is multiple, the multiple second hanging ears (32) are arranged at intervals, the multiple fourth hanging ears (34) are arranged at intervals, and correspond one-to-one with the multiple second hanging ears (32); the number of the second hanging point reinforcement ribs (14) is multiple, the multiple second hanging point reinforcement ribs (14) are arranged at intervals, and each second hanging point reinforcement rib (14) corresponds to a group of one-to-one corresponding second hanging ears (32) and fourth hanging ears (34).

8. The battery case according to claim 5, wherein: One end of the first lifting lug (31), one end of the second lifting lug (32), one end of the third lifting lug (33), and one end of the fourth lifting lug (34) respectively extend from the outer side walls around the shell (10) to the bottom wall of the shell (10).

9. A battery pack, characterized in that: A battery case (100) comprising the battery case (100) according to any one of claims 1 to 8.

10. A new energy vehicle, characterized in that: Comprising the battery pack (1100) as claimed in claim 9.

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