Battery pack end plate, battery case front frame beam, battery pack, and vehicle

Abstract

A battery pack end plate, a battery case front frame beam, a battery pack, and a vehicle The battery pack end plate comprises a body (10) and a reinforcing assembly (11), wherein the body (10) has a cavity; the reinforcing assembly (11) is arranged in the cavity and is connected to the inner wall of the cavity, and the reinforcing assembly (11) comprises a transverse reinforcing rib (112) and a longitudinal reinforcing rib (111) intersecting each other; and a first reinforcing boss (114) is provided at the intersection between the longitudinal reinforcing rib (111) and the transverse reinforcing rib (112). The battery pack end plate has high structural strength, good deformation resistance and a light weight.

Description

Battery pack end plate, battery box front frame beam, battery pack and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311660513.0 and application date of December 5, 2023, and the Chinese patent application with application number 202311660481.4 and application date of December 5, 2023, and claims the priority of the Chinese patent application. The entire contents of the Chinese patent application are hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of vehicle technology, and in particular, to a battery pack end plate, a battery box front frame beam, a battery pack and a vehicle. Background Art

[0004] The power battery system is the most important component of new energy vehicles. With the development of new energy vehicles, the energy density requirements for power battery systems are getting higher and higher.

[0005] Existing power battery systems generally include a housing and multiple power battery modules housed within it. A power battery module consists of a housing and battery cells within the housing. The power battery module end plate is part of the housing and provides protection, protecting the battery cells within the housing from external damage.

[0006] Due to the expansion of the battery cells, the module end plates are prone to extrusion damage when squeezed by the expansion of the battery cells. Related technologies have improved the structural strength of the end plates by increasing the thickness of the end plates or constructing reinforcing ribs. However, increasing the thickness of the end plates will increase the cost and weight of the battery pack, and improving the structural strength by constructing reinforcing ribs also has many problems. For example, the connection of the reinforcing ribs is prone to breakage due to stress concentration. Summary of the Invention

[0007] The technical problem to be solved by the present application is that, in response to the defects and shortcomings of the existing technology, a battery pack end plate is provided, in which the cavity of the battery pack end plate is provided with transverse reinforcement ribs and longitudinal reinforcement ribs arranged in an intersecting manner, and reinforcement protrusions are provided at the intersections of the transverse reinforcement ribs and the longitudinal reinforcement ribs. The intersecting transverse reinforcement ribs and the longitudinal reinforcement ribs can improve the structural strength of the body to match the expansion force of the battery cell. The first reinforcement protrusion arranged at the intersection can serve as a fixed support for the transverse reinforcement ribs and the longitudinal reinforcement ribs to further improve the structural strength of the body, and can also reduce the stress at the intersecting positions of the reinforcement ribs, thereby reducing the risk of reinforcement rib breakage.

[0008] The battery pack end plate of an embodiment of the present application includes a main body and a reinforcement assembly, the main body has a cavity, the reinforcement assembly is arranged in the cavity and connected to the inner wall of the cavity, and the reinforcement rib assembly includes intersecting transverse reinforcement ribs and longitudinal reinforcement ribs, and a first reinforcement boss is provided at the intersection of the longitudinal reinforcement ribs and the transverse reinforcement ribs.

[0009] The battery pack end plate of the embodiment of the present application has a body with a cavity, and the reinforcement assembly includes transverse reinforcement ribs and longitudinal reinforcement ribs. The transverse reinforcement ribs and the longitudinal reinforcement ribs are both connected to the inner wall of the cavity, and a first reinforcement boss is provided at the intersection of the longitudinal reinforcement ribs and the transverse reinforcement ribs. Therefore, the intersecting transverse reinforcement ribs and longitudinal reinforcement ribs can improve the structural strength of the body to match the expansion force of the battery cell. The first reinforcement boss arranged at the intersection can serve as a fixed support member for the transverse reinforcement ribs and the longitudinal reinforcement ribs to further improve the structural strength of the body, and can also reduce the stress at the staggered position of the reinforcement ribs, thereby reducing the risk of reinforcement rib breakage.

[0010] In some embodiments, the reinforcement assembly further includes an oblique reinforcement rib, which is arranged between the first reinforcement boss and the inner side wall of the cavity, and the extension direction of the oblique reinforcement rib is at an angle to the extension direction of the transverse reinforcement rib, and the extension direction of the oblique reinforcement rib is at an angle to the extension direction of the longitudinal reinforcement rib.

[0011] In some embodiments, a second reinforcing boss is provided at the connection between the transverse reinforcing rib and the inner side wall of the cavity;

[0012] and / or, a second reinforcing boss is provided at the connection between the longitudinal reinforcing rib and the inner side wall of the cavity;

[0013] And / or, a second reinforcing boss is provided at the connection between the oblique reinforcing rib and the inner side wall of the cavity.

[0014] In some embodiments, the cavity has an opening, and a fixing boss protruding toward the opening is provided on the inner bottom wall of the cavity, and a connecting hole is provided at one end of the fixing boss facing away from the inner bottom wall of the cavity.

[0015] In some embodiments, a supporting boss is further provided on the inner bottom wall of the cavity, and an end of the supporting boss facing away from the inner bottom wall of the cavity extends out of the opening and is used to support the cover of the battery pack.

[0016] In some embodiments, the supporting boss is connected to the reinforcing assembly, and / or the fixing boss is connected to the reinforcing assembly.

[0017] In some embodiments, the main body includes a base plate and a peripheral plate connected to the base plate, the base plate and the peripheral plate enclose the cavity, and the peripheral plate includes two large-surface side panels spaced apart in the length direction of the main body and connecting side panels connected at both ends of the two large-surface side panels, the two ends of the transverse reinforcement rib are respectively connected to the two large-surface side panels, and the two ends of the longitudinal reinforcement rib are respectively connected to the two connecting side panels.

[0018] In some embodiments, the transverse reinforcing ribs are perpendicular to and intersect the longitudinal reinforcing ribs.

[0019] The battery pack of the embodiment of the present application includes the battery pack end plate described in the above embodiment.

[0020] The battery pack of the embodiment of the present application adopts the above-mentioned battery pack end plate, and transverse reinforcement ribs and longitudinal reinforcement ribs arranged in an intersecting manner are provided in the cavity of the battery pack end plate, and a first reinforcement boss is provided at the intersection of the transverse reinforcement ribs and the longitudinal reinforcement ribs. Therefore, the transverse reinforcement ribs and the longitudinal reinforcement ribs arranged in an intersecting manner can improve the structural strength of the end plate to match the expansion force of the battery cell. The first reinforcement boss provided at the intersection can serve as a fixed support member for the transverse reinforcement ribs and the longitudinal reinforcement ribs to further improve the structural strength of the main body, and can also reduce the stress at the staggered position of the reinforcement ribs, thereby reducing the risk of reinforcement rib breakage, and the battery pack has high structural stability.

[0021] The vehicle of the embodiment of the present application includes the battery pack described in the above embodiment.

[0022] The vehicle of the embodiment of the present application adopts the above-mentioned battery pack, and the cavity of the battery pack end plate is provided with transverse reinforcement ribs and longitudinal reinforcement ribs arranged in an intersecting manner, and a first reinforcement boss is provided at the intersection of the transverse reinforcement ribs and the longitudinal reinforcement ribs. Therefore, the transverse reinforcement ribs and the longitudinal reinforcement ribs arranged in an intersecting manner can improve the structural strength of the end plate to match the expansion force of the battery cell. The first reinforcement boss arranged at the intersection can serve as a fixed support member for the transverse reinforcement ribs and the longitudinal reinforcement ribs to further improve the structural strength of the body, and can reduce the stress at the staggered position of the reinforcement ribs, thereby reducing the risk of reinforcement rib breakage. The battery pack has high structural stability and good vehicle performance.

[0023] An embodiment of the present application further provides a front frame beam for a battery box, which has the advantage of high reliability in restraining the wiring harness.

[0024] According to an embodiment of the present application, the front frame beam of the battery box includes a front side beam, a rear cross beam, an intermediate longitudinal beam and a mounting bracket, the front side beam and the rear cross beam are arranged along a first direction, the two ends of the front side beam are respectively connected to the two ends of the rear cross beam, and a front chamber is formed between the front side beam and the rear cross beam; the intermediate longitudinal beam is located in the front chamber and extends along the first direction, the two ends of the intermediate longitudinal beam are respectively connected to the front side beam and the rear cross beam; the mounting bracket is located in the front chamber and connected to the intermediate longitudinal beam, and the mounting bracket has a first wiring harness fixing position.

[0025] According to the embodiment of the present application, the front frame beam of the battery box, the front side beams, and the rear cross beams form a front chamber. The middle longitudinal beam is located in the front chamber and connects the front side beams and the rear cross beams. In this case, a mounting bracket is provided on the middle longitudinal beam. The wiring harness in the front chamber is fixed to the mounting bracket via a first wiring harness fixing position. The mounting bracket supports and fixes the wiring harness in the front chamber. This effectively prevents the wiring harness from shaking with the vehicle during driving and pulling on the wiring harness terminals, thereby effectively ensuring the reliability of the electrical connection between the electrical components and the battery module.

[0026] In some embodiments, the front side beam includes a first vertical plate, a first horizontal plate, a second horizontal plate, a first reinforcing transverse rib and a first reinforcing vertical rib, and the first vertical plate is connected to the middle longitudinal beam; the first horizontal plate and the second horizontal plate are both arranged on the side of the first vertical plate away from the middle longitudinal beam, and the first horizontal plate and the second horizontal plate are respectively arranged at the upper end and the lower end of the first vertical plate, and the first horizontal plate is provided with a plurality of waterproof rivet nuts arranged at intervals along a second direction, and the second direction is orthogonal to the first direction; the first reinforcing transverse rib and the first reinforcing vertical rib are both located on the side of the first vertical plate away from the middle longitudinal beam, and the first reinforcing vertical rib is connected to each of the first vertical plate, the first horizontal plate and the second horizontal plate.

[0027] In some embodiments, the front side beam further includes a mounting platform, the mounting platform is provided with an electrical component mounting position, and the mounting platform is arranged on a side of the first vertical plate away from the middle longitudinal beam;

[0028] And / or, the front side beam further includes a mounting boss, the mounting boss is provided with a second wiring harness fixing position, and the mounting boss is arranged on a side of the first vertical plate away from the middle longitudinal beam.

[0029] In some embodiments, the rear cross beam includes a second vertical plate, a third vertical plate, a second reinforcing vertical rib and a third reinforcing vertical rib, the second vertical plate and the second vertical plate are arranged at intervals along the first direction, the second vertical plate is located on the side of the third vertical plate away from the front side beam, and the third vertical plate is connected to the middle longitudinal beam; the second reinforcing vertical rib and the third reinforcing vertical rib are at an angle, the second reinforcing vertical rib and the third reinforcing vertical rib are both located between the second vertical plate and the third vertical plate, the second reinforcing vertical rib connects the second vertical plate and the third vertical plate, and the third reinforcing vertical rib connects the second vertical plate and the third vertical plate.

[0030] In some embodiments, the rear cross beam further includes a bottom plate, the bottom plate connecting the second vertical plate and the third vertical plate, and the bottom plate is provided with a mounting hole opposite to the bottom guard plate.

[0031] In some embodiments, there are a plurality of intermediate longitudinal beams, which are spaced apart along a second direction, and the second direction is orthogonal to the first direction.

[0032] In some embodiments, the middle longitudinal beam includes a fourth vertical plate, a fifth vertical plate and a fourth reinforcing vertical rib, the fourth vertical plate and the fifth vertical plate are arranged at intervals along a second direction, the second direction is orthogonal to the first direction, the fourth vertical plate and the fifth vertical plate are both connected to the front side beam and the rear cross beam; the fourth reinforcing vertical rib is located between the fourth vertical plate and the fifth vertical plate and connects the fourth vertical plate and the fifth vertical plate.

[0033] In some embodiments, the mounting bracket comprises:

[0034] a cylindrical boss, the cylindrical boss being disposed on at least one of the fourth riser and the fifth riser, the cylindrical boss extending in a height direction, the first wiring harness fixing position comprising a threaded hole disposed on a top surface of the cylindrical boss; and / or

[0035] A planar boss is provided at the upper end of at least one of the fourth vertical plate and the fifth vertical plate, the top surface of the planar boss constitutes a wire harness support surface, and the first wire harness fixing position includes a through hole provided on the wire harness support surface.

[0036] In some embodiments, the front frame beam of the battery box further includes a mounting structure, which is disposed on a side of the front side beam facing away from the rear cross beam, and the mounting structure includes a plurality of vehicle mounting points.

[0037] In some embodiments, the mounting mechanism also includes a sixth vertical plate, a third horizontal plate, a second reinforcing transverse rib, a reinforcing longitudinal rib, a third reinforcing transverse rib and a fifth reinforcing vertical rib, the sixth vertical plate is connected to the front side beam; the third horizontal plate is arranged at the upper end of the sixth vertical plate, and the whole vehicle mounting point is arranged on the third horizontal plate; the second reinforcing transverse rib connects the third horizontal plate and the whole vehicle mounting point, and the reinforcing longitudinal rib connects the third horizontal plate and the whole vehicle mounting point; the third reinforcing transverse rib connects the fifth reinforcing vertical rib and the front side beam, and the fifth reinforcing vertical rib connects the sixth vertical plate, the third horizontal plate and each of the front side beams.

[0038] In some embodiments, the front frame beam of the battery box also includes a frame connected to the edge longitudinal beam of the battery box frame. There are two frames, and the first end of the front side beam is connected to the first end of the rear cross beam through one of the frames, and the second end of the front side beam is connected to the second end of the rear cross beam through the other frame.

[0039] In some embodiments, the frame includes a seventh vertical plate, a fourth reinforcing transverse rib and a sixth reinforcing vertical rib, the seventh vertical plate connects the front side beam and the rear transverse beam, the seventh vertical plate has a welding bevel welded to the edge longitudinal beam and a welding positioning hole; the fourth reinforcing transverse rib, the sixth reinforcing vertical rib and the seventh vertical plate are connected to each other in pairs.

[0040] The battery pack according to an embodiment of the present application includes a battery box front frame beam as described in any of the above embodiments.

[0041] The technical advantages of the battery pack according to the embodiment of the present application are the same as the technical advantages of the front frame beam of the battery box in the above embodiment, and will not be repeated here.

[0042] The vehicle according to an embodiment of the present application includes the battery pack as described in the above embodiment.

[0043] The technical advantages of the vehicle according to the embodiment of the present application are the same as the technical advantages of the battery pack in the above-mentioned embodiment, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] FIG1 is a schematic structural diagram of a battery pack end plate according to an embodiment of the present application;

[0045] FIG2 is a side view of an end plate of a battery pack according to an embodiment of the present application;

[0046] FIG3 is a top view of an end plate of a battery pack according to an embodiment of the present application;

[0047] FIG4 is an enlarged view of a partial structure of an end plate of a battery pack according to an embodiment of the present application;

[0048] FIG5 is an enlarged view of a partial structure of a battery pack end plate according to an embodiment of the present application;

[0049] FIG6 is a schematic structural diagram of a bottom plate of a battery pack end plate according to an embodiment of the present application;

[0050] FIG7 is a schematic structural diagram of a connecting side plate of a battery pack end plate according to an embodiment of the present application;

[0051] FIG8 is an axonometric view of a front frame beam of a battery box according to an embodiment of the present application;

[0052] FIG9 is a top view of the front frame beam of the battery box according to an embodiment of the present application;

[0053] FIG10 is a front view of a front frame beam of a battery box according to an embodiment of the present application;

[0054] FIG11 is a top view of the rear cross beam of the front frame beam of the battery box according to an embodiment of the present application;

[0055] FIG12 is a schematic diagram of an intermediate longitudinal beam in a front frame beam of a battery box according to an embodiment of the present application;

[0056] FIG13 is a schematic diagram of a mounting structure in a front frame beam of a battery box according to an embodiment of the present application;

[0057] Figure 14 is a schematic diagram of the middle frame of the front frame beam of the battery box according to an embodiment of the present application. DETAILED DESCRIPTION

[0058] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present application, but should not be understood as limiting the present application.

[0059] As shown in Figures 1 to 7, the battery pack end plate of the embodiment of the present application includes a main body 10 and a reinforcement assembly 11. The main body 10 has a cavity. The reinforcement rib assembly is arranged in the cavity and includes intersecting transverse reinforcement ribs 112 and longitudinal reinforcement ribs 111. The longitudinal reinforcement ribs 111 and the transverse reinforcement ribs 112 are both connected to the inner wall of the cavity and a first reinforcement boss 114 is provided at the intersection of the longitudinal reinforcement ribs 111 and the transverse reinforcement ribs 112.

[0060] Specifically, taking Figures 1 to 6 as an example, the body 10 includes a bottom plate 14 and a peripheral plate connected to the bottom plate 14. The bottom plate 14 and the peripheral plate enclose a cavity, and the peripheral plate includes two large side plates 101 spaced apart in the longitudinal direction of the body 10 and connecting side plates 15 connected to the two ends of the two large side plates 101. The two ends of the transverse reinforcing ribs 112 are respectively connected to the two large side plates 101, and the two ends of the longitudinal reinforcing ribs 111 are respectively connected to the two connecting side plates 15. Preferably, the transverse reinforcing ribs 112 are perpendicular to and intersect with the longitudinal reinforcing ribs 111.

[0061] It can be understood that the battery pack end plate is arranged at the end of the battery cell module and the large side plate 101 is in direct contact with the battery cell. The expansion of the battery cell will squeeze the large side plate 101, and the reinforcing ribs arranged in the cavity can support the main body 10 from the inside to prevent the main body 10 from collapsing or being damaged under pressure. The transverse reinforcing ribs 112 and the longitudinal reinforcing ribs 111 of the present application are arranged in an intersecting manner, which is convenient for evenly distributing pressure and has good anti-deformation effect. The first reinforcing protrusion arranged at the intersection can serve as a fixed support for the transverse reinforcing ribs 112 and the longitudinal reinforcing ribs 111 to further enhance the structural strength of the end plate, and can also reduce the stress at the intersecting position of the reinforcing ribs, thereby reducing the risk of reinforcing rib breakage.

[0062] The battery pack end plate of the embodiment of the present application has a main body 10 with a cavity, and the reinforcement assembly 11 includes a transverse reinforcement rib 112 and a longitudinal reinforcement rib 111. The transverse reinforcement rib 112 and the longitudinal reinforcement rib 111 are both connected to the inner wall of the cavity, and a first reinforcement boss 114 is provided at the intersection of the longitudinal reinforcement rib 111 and the transverse reinforcement rib 112. Thus, the intersecting transverse reinforcement rib 112 and the longitudinal reinforcement rib 111 can improve the structural strength of the main body 10 to match the expansion force of the battery cell. The first reinforcement boss provided at the intersection can serve as a fixed support member for the transverse reinforcement rib 112 and the longitudinal reinforcement rib 111 to further improve the structural strength of the main body 10, and can also reduce the stress at the intersecting position of the reinforcement ribs, thereby reducing the risk of reinforcement rib breakage.

[0063] Preferably, the end plate is integrally die-casted using ADC12 or A380 material to reduce the complexity of installation and manufacturing, and the use of aluminum casting technology can reduce the weight of the end plate and achieve lightweight structural parts.

[0064] Preferably, the distance between the two large-surface side panels 101 is between 20 mm and 50 mm.

[0065] Furthermore, as shown in Figures 3 and 5, the reinforcement assembly 11 also includes oblique reinforcement ribs 113, which are arranged between the first reinforcement boss 114 and the inner wall of the cavity. The extension direction of the oblique reinforcement ribs 113 forms an angle with the extension direction of the transverse reinforcement ribs 112, and the extension direction of the oblique reinforcement ribs 113 forms an angle with the extension direction of the longitudinal reinforcement ribs 111. As a result, the oblique reinforcement ribs 113 can share the stress at the intersection of the transverse reinforcement ribs 112 and the longitudinal reinforcement ribs 111, avoiding stress concentration that may cause the reinforcement ribs to tear. At the same time, the number of reinforcement ribs arranged in a local area can be increased, further improving the structural strength of the body 10.

[0066] Preferably, the transverse reinforcing ribs 112 are multiple and spaced apart in the length direction of the cavity, and the longitudinal reinforcing ribs 111 are multiple and spaced apart in the width direction of the cavity. The multiple transverse reinforcing ribs 112 and the longitudinal reinforcing ribs 111 can form multiple intersection points spaced apart in the length direction of the cavity, and the distance between adjacent intersection points is between 5mm and 30mm.

[0067] Preferably, the layout space of the transverse reinforcing ribs 112 , the longitudinal reinforcing ribs 111 and the transverse reinforcing ribs 112 accounts for between 10% and 70% of the cavity.

[0068] Preferably, a second reinforcing boss is provided at the connection between the transverse reinforcing rib 112 and the inner wall of the cavity, thereby reducing stress concentration at the connection between the transverse reinforcing rib 112 and the inner wall of the cavity.

[0069] Preferably, a second reinforcing boss is provided at the connection between the longitudinal reinforcing rib 111 and the inner wall of the cavity, thereby reducing stress concentration at the connection between the longitudinal reinforcing rib 111 and the inner wall of the cavity.

[0070] Preferably, a second reinforcing boss is provided at the connection between the oblique reinforcing rib 113 and the inner wall of the cavity, thereby reducing stress concentration at the connection between the oblique reinforcing rib 113 and the inner wall of the cavity.

[0071] Furthermore, as shown in Figure 4, the cavity has an opening, and a fixing boss 12 is provided on the inner bottom wall of the cavity, protruding toward the opening. The end of the fixing boss 12, which faces away from the inner bottom wall of the cavity, has a connection hole 121. It should be noted that during assembly, the battery cover end plate, in addition to being connected to the battery pack bottom plate 14, also needs to cooperate with some auxiliary brackets in the battery system. The fixing boss 12 can serve as a connecting column for connecting with the auxiliary brackets, and can also be used to assist the reinforcement assembly 11 in strengthening the body 10 as a whole.

[0072] Preferably, there are multiple fixing bosses 12 arranged at intervals, and the specific layout is based on actual assembly requirements.

[0073] Preferably, the height of the boss is between 5 mm and 150 mm, and can be set according to assembly requirements.

[0074] Furthermore, to ensure connection strength, the connection hole 121 may be configured as a threaded hole, and the depth of the connection hole 121 may be no less than 3 mm.

[0075] Optionally, both the first reinforcement boss 114 and the second reinforcement boss can be constructed as fixing bosses 12 .

[0076] Furthermore, as shown in FIG5 , a support boss 13 is provided on the inner bottom wall of the cavity. The end of the support boss 13 facing away from the inner bottom wall of the cavity extends out of the opening and is used to support the cover of the battery pack. It should be noted that the cover of the battery pack is subject to deformation when squeezed by external force. The present application solves the problem of cover deformation caused by the highly integrated battery system by providing a support boss 13, which can be supported below the cover. The support boss 13 can also serve as a reinforcing column to assist the reinforcing assembly 11 in strengthening the main body 10 as a whole. Preferably, the protruding height of the support boss 13 relative to the main body 10 is not less than 5 mm.

[0077] Specifically, the top of the supporting boss 13 is a supporting plane 131, and a groove 133 and an internal threaded hole 132 are provided on the supporting plane 131. The groove 133 can be used to install a sealing ring to ensure the sealing effect between the supporting boss 13 and the cover plate, thereby ensuring that the power battery system is waterproof and dustproof. The internal threaded hole 132 is fixed to the upper cover plate by fixing screws.

[0078] Preferably, as shown in Figure 5, the support boss 13 is connected to the reinforcement assembly 11. Thus, the force of the support boss 13 can be evenly applied to the body 10 through the reinforcement assembly 11, thereby improving support reliability.

[0079] Preferably, the fixing boss 12 is connected to the reinforcement component 11 .

[0080] Furthermore, a fixing hole 141 is provided on the bottom plate 14 of the main body 10. The fixing hole 141 includes but is not limited to a hexagonal, circular or square shape. The fixing hole 141 is used to embed a rivet screw or a rivet nut for fixing the end plate to the box body.

[0081] The connecting side panel 15 includes a main body panel and a ring edge 154 surrounding the outer periphery of the main body panel. The main body panel is provided with reinforcing transverse ribs 152 and reinforcing vertical ribs 153 to improve the structural strength of the main body panel. The main body panel is provided with an assembly hole 151. The ring edge 154 can be used to be welded and fixed to the battery pack box, and the assembly hole 151 can be used for positioning or fixed connection.

[0082] The battery pack of the embodiment of the present application includes the battery pack end plate of the above embodiment.

[0083] The battery pack of the embodiment of the present application adopts the above-mentioned battery pack end plate, and a cross-arranged transverse reinforcement rib 112 and a longitudinal reinforcement rib 111 are provided in the cavity of the battery pack end plate, and a first reinforcement boss 114 is provided at the intersection of the transverse reinforcement rib 112 and the longitudinal reinforcement rib 111. Therefore, the cross-arranged transverse reinforcement rib 112 and the longitudinal reinforcement rib 111 can improve the structural strength of the end plate to match the expansion force of the battery cell. The first reinforcement boss provided at the intersection can serve as a fixed support member for the transverse reinforcement rib 112 and the longitudinal reinforcement rib 111 to further improve the structural strength of the main body 10, and can also reduce the stress at the staggered position of the reinforcement ribs, thereby reducing the risk of reinforcement rib breakage, and the battery pack has high structural stability.

[0084] The vehicle according to the embodiment of the present application includes the battery pack according to the above embodiment.

[0085] The vehicle of the embodiment of the present application adopts the above-mentioned battery pack, and the cavity of the battery pack end plate is provided with transverse reinforcing ribs 112 and longitudinal reinforcing ribs 111 arranged in an intersecting manner, and a first reinforcing boss 114 is provided at the intersection of the transverse reinforcing ribs 112 and the longitudinal reinforcing ribs 111. Therefore, the transverse reinforcing ribs 112 and the longitudinal reinforcing ribs 111 arranged in an intersecting manner can improve the structural strength of the end plate to match the expansion force of the battery cell. The first reinforcing boss provided at the intersection can serve as a fixed support member for the transverse reinforcing ribs 112 and the longitudinal reinforcing ribs 111 to further improve the structural strength of the main body 10, and can also reduce the stress at the staggered position of the reinforcing ribs and reduce the risk of reinforcing rib breakage. The battery pack has high structural stability and good vehicle performance.

[0086] Furthermore, in related art, the front frame beam of the battery pack often houses electrical components, which are electrically connected to the battery modules via wiring harnesses. The length of the wiring harness connecting the electrical components and the battery modules is typically greater than the distance between them, to prevent the wiring harness from being over-tensioned and lacking buffer margin, which could affect connection reliability. After the battery pack is assembled, the majority of the wiring harness is placed in the front chamber of the front frame beam, and this portion of the harness is loose or even suspended. This can easily cause the harness to sway with the vehicle while driving, creating the risk of excessive stress on the harness terminals, causing them to detach from the electrical components or battery modules.

[0087] In order to solve at least one of the technical problems in the above-mentioned related technologies to a certain extent, the embodiment of the present application further provides a battery box front frame beam 20. The battery box front frame beam 20 according to the embodiment of the present application is described below in conjunction with Figures 8 to 14.

[0088] According to an embodiment of the present application, the front frame beam 20 of the battery box includes a front side beam 21, a rear cross beam 222, an intermediate longitudinal beam 23, and a mounting bracket. The front side beam 21 and the rear cross beam 222 are arranged along a first direction, and the two ends of the front side beam 21 are respectively connected to the two ends of the rear cross beam 222, forming a front chamber between the front side beam 21 and the rear cross beam 222. The intermediate longitudinal beam 23 is located in the front chamber and extends along the first direction. The two ends of the intermediate longitudinal beam 23 are respectively connected to the front side beam 21 and the rear cross beam 222. The mounting bracket is located in the front chamber and connected to the intermediate longitudinal beam 23, and the mounting bracket has a first wiring harness fixing position.

[0089] According to the embodiment of the present application, the front frame beam 20 of the battery box, the front side beam 21, and the rear cross beam 22 form a front chamber. The intermediate longitudinal beam 23 is located in the front chamber and connects the front side beam 21 and the rear cross beam 22. In this case, a mounting bracket is provided on the intermediate longitudinal beam 23. The wiring harness in the front chamber is fixed to the mounting bracket via a first wiring harness fixing position. The mounting bracket supports and fixes the wiring harness in the front chamber. This effectively prevents the wiring harness from shaking with the vehicle during driving and pulling on the wiring harness terminals, thereby effectively ensuring the reliability of the electrical connection between the electrical components and the battery module.

[0090] It should be noted that there are multiple intermediate longitudinal beams 23, spaced apart along the second direction. These multiple intermediate longitudinal beams 23 further enhance the structural strength of the battery box front frame beam 20. The first direction is the front-to-back direction of the vehicle, and the second direction is the left-to-right direction of the vehicle. The battery box front frame beam 20 is integrally die-cast, comprising the front side beams 21, rear cross beam 22, reinforcement beam 3, and mounting bracket. This eliminates welding and enables automated manufacturing using molds, resulting in high production efficiency.

[0091] In some embodiments, as shown in Figures 8 and 10, the front side beam 21 includes a first vertical plate 211, a first horizontal plate 212, a second horizontal plate 213, a first reinforcing transverse rib 215, and a first reinforcing vertical rib 216. The first vertical plate 211 is connected to the middle longitudinal beam 23. The first horizontal plate 212 and the second horizontal plate 213 are both arranged on the side of the first vertical plate 211 away from the middle longitudinal beam 23. The first horizontal plate 212 and the second horizontal plate 213 are respectively arranged at the upper end and the lower end of the first vertical plate 211. The first horizontal plate 212 is provided with a plurality of waterproof rivet nuts 214 arranged at intervals along a second direction, and the second direction is orthogonal to the first direction. The first reinforcing transverse rib 215 and the first reinforcing vertical rib 216 are both located on the side of the first vertical plate 211 away from the middle longitudinal beam 23. The first reinforcing vertical rib 216 is connected to each of the first vertical plate 211, the first horizontal plate 212, and the second horizontal plate 213.

[0092] The battery compartment cover is connected to the first horizontal plate 212 via waterproof rivet nuts 214, ensuring a sealed connection between the first horizontal plate 212 and the cover. The provision of first transverse reinforcing ribs 215 and first vertical reinforcing ribs 216 effectively enhances the structural strength of the front side beam 21. The connection strength and bending resistance between the first horizontal plate 212 and the first vertical plate 211 are high, further enhancing the stability of the connection between the battery compartment front frame beam 20 and the cover.

[0093] Specifically, the front side beam 21 is connected to the middle longitudinal beam 23 and the rear cross beam 22 via a first vertical plate 211. The front side beam 21 is generally a U-shaped frame with an opening facing forward. There are multiple first vertical reinforcing ribs 216 arranged at intervals along the second direction, and there is one first cross reinforcing rib 215 that is connected to all first vertical reinforcing ribs 216.

[0094] In some embodiments, as shown in Figures 9 and 12 , the front side member 21 further includes a mounting platform 217, which has electrical component mounting locations. The mounting platform 217 is located on the side of the first riser 211 facing away from the middle longitudinal beam 23. Specifically, the electrical components are secured to the mounting platform 217 via the electrical mounting locations. Furthermore, the mounting platform 217 is integrally die-cast onto the first riser 211 of the front side member 21, eliminating the need to weld the mounting platform 217 onto the first riser 211. This further reduces the manufacturing cost of the battery box front frame member 20.

[0095] Alternatively, the front side rail 21 may further include a mounting boss 218, which is provided with a second wiring harness securing position. The mounting boss 218 is located on the side of the first riser 211 facing away from the center longitudinal rail 23. The mounting boss 218 is adjacent to the mounting platform 217. After the electrical components are mounted on the mounting platform 217, the wiring harness electrically connected to the electrical components is secured to the mounting boss 218 via the second wiring harness securing position, further preventing the wiring harness from being accidentally pulled and disconnected from the electrical components.

[0096] Specifically, the mounting platform 217 is integrally die-cast with the first vertical plate 211. The front side of the mounting platform 217 is milled to form a flat surface for mounting electrical components, ensuring reliable mounting and securing of the components. Once mounted on the mounting platform 217, the components are positioned in front of the first horizontal plate 212. The wiring harnesses connected to the components are secured at the mounting bosses 218, further ensuring a reliable electrical connection between the wiring harness and the components.

[0097] In some embodiments, as shown in Figures 9 and 11, the rear cross member 22 includes a second vertical plate 221, a third vertical plate 222, a second reinforcing vertical rib 223, and a third reinforcing vertical rib 224. The second vertical plate 221 and the second vertical plate 221 are spaced apart along the first direction, the second vertical plate 221 is located on the side of the third vertical plate 222 facing away from the front side member 21, and the third vertical plate 222 is connected to the middle longitudinal beam 23. The second reinforcing vertical rib 223 and the third reinforcing vertical rib 224 are at an angle, and are both located between the second vertical plate 221 and the third vertical plate 222. The second reinforcing vertical rib 223 connects the second vertical plate 221 and the third vertical plate 222, and the third reinforcing vertical rib 224 connects the second vertical plate 221 and the third vertical plate 222.

[0098] The angled second reinforcing vertical ribs 223 and the third reinforcing vertical ribs 224 effectively improve the connection strength between the second vertical plate 221 and the third vertical plate 222 . The overall structural strength of the rear crossbeam 22 is higher, and the battery module can be better supported.

[0099] Specifically, the second vertical reinforcing ribs 223 are perpendicular to the second vertical plates 221 and the third vertical plates 222, and the third vertical reinforcing ribs 224 are oblique ribs. Each of the second vertical plates 221 and the third vertical plates 222 forms a stable triangular support structure with the third vertical reinforcing ribs 224 and the second vertical reinforcing ribs 223. There are multiple second vertical reinforcing ribs 223 and multiple third vertical reinforcing ribs 224, which are spaced apart along the second direction.

[0100] In some embodiments, as shown in FIG. 11 , the rear cross beam 22 further includes a bottom plate 225 , which connects the second vertical plate 221 and the third vertical plate 222 . The bottom plate 225 is provided with a mounting hole 2251 opposite to the bottom guard plate.

[0101] The fastener passes through the mounting hole 2251 and is connected to the bottom guard plate to achieve the connection between the rear cross beam 22 and the bottom guard plate. The connection strength and reliability of the rear cross beam 22 and the bottom guard plate are high.

[0102] Specifically, the bottom plate 225 is also connected to the lower ends of the second and third reinforcing vertical ribs 223 and 224, further improving the structural strength of the rear cross member 22. The bottom plate 225 can be connected to the bottom guard plate by a screw member passing through the mounting hole 2251 and threadedly connected to the bottom guard plate.

[0103] In some embodiments, as shown in Figures 8 and 9 , there are multiple intermediate longitudinal beams 23 arranged at intervals along a second direction that is orthogonal to the first direction. The multiple intermediate longitudinal beams 23 further enhance the structural strength of the battery box front frame beam 20 .

[0104] In some embodiments, as shown in Figure 12, the middle longitudinal beam 23 includes a fourth vertical plate 231, a fifth vertical plate 232, and a fourth reinforcing vertical rib 233. The fourth vertical plate 231 and the fifth vertical plate 232 are spaced apart along a second direction, which is orthogonal to the first direction. The fourth vertical plate 231 and the fifth vertical plate 232 both connect the front side beam 21 and the rear cross beam 22. The fourth reinforcing vertical rib 233 is located between the fourth vertical plate 231 and the fifth vertical plate 232 and connects the fourth vertical plate 231 and the fifth vertical plate 232.

[0105] The fourth reinforcing vertical rib 233 effectively improves the bending strength and supporting strength of the middle longitudinal beam 23, ensuring that the middle longitudinal beam 23 can be first die-cast without being designed as a solid structure, effectively meeting the lightweight requirements of the vehicle.

[0106] Specifically, there are multiple fourth vertical reinforcement ribs 233, and there can be two types of fourth vertical reinforcement ribs 233, which are angled. The front ends of the fourth vertical plate 231 and the fifth vertical plate 232 are both connected to the first vertical plate 211 of the front side beam 21, and the rear ends of the fourth vertical plate 231 and the fifth vertical plate 232 are both connected to the third vertical plate 222 of the rear cross beam 22.

[0107] In some embodiments, the mounting bracket includes a cylindrical boss 24 disposed on at least one of the fourth riser 231 and the fifth riser 232. The cylindrical boss 24 extends in the height direction, and the first wiring harness fixing portion includes a threaded hole 241 disposed on the top surface of the cylindrical boss 24. A screw threadedly engages with the threaded hole 241 to clamp the grounding wire between the head of the screw and the cylindrical boss 24, thereby achieving grounding of the battery box frame beam.

[0108] Alternatively, the mounting bracket includes a planar boss 25 disposed on the upper end of at least one of the fourth riser 231 and the fifth riser 232. The top surface of the planar boss 25 constitutes a wiring harness support surface, and the first wiring harness securing portion includes a through-hole 251 disposed in the wiring harness support surface. The display within the front chamber is positioned above the wiring harness support surface. In this case, a cable tie can be passed through the through-hole 251 and tied to the wiring harness to secure the wiring harness to the middle longitudinal beam 23.

[0109] In some embodiments, as shown in FIG8 and FIG9 , the battery box front frame beam 20 further includes a mounting structure 26 , which is disposed on a side of the front side beam 21 away from the rear cross beam 22 , and includes a plurality of vehicle mounting points 267 .

[0110] The battery pack is connected to the vehicle body via the vehicle mounting point 267 to facilitate installation. The integral die-casting of the mounting structure 26 and other components of the battery box front frame beam 20 effectively ensures the connection strength between the mounting structure 26 and the front side beam 21, further reducing the difficulty of machining the battery box front frame beam 20, effectively meeting the requirements of production automation and achieving high production efficiency.

[0111] Specifically, there are two mounting structures 26 and they are spaced apart along the second direction.

[0112] In some embodiments, as shown in Figures 8, 9 and 13, the mounting mechanism further includes a sixth vertical plate 261, a third horizontal plate 262, a second reinforcing transverse rib 263, a reinforcing longitudinal rib 264, a third reinforcing transverse rib 265 and a fifth reinforcing vertical rib 266. The sixth vertical plate 261 is connected to the front side beam 21. The third horizontal plate 262 is disposed at the upper end of the sixth vertical plate 261, and the vehicle mounting point 267 is disposed on the third horizontal plate 262. The second reinforcing transverse rib 263 connects the third horizontal plate 262 and the vehicle mounting point 267, and the reinforcing longitudinal rib 264 connects the third horizontal plate 262 and the vehicle mounting point 267. The third reinforcing transverse rib 265 connects the fifth reinforcing vertical rib 266 and the front side beam 21, and the fifth reinforcing vertical rib 266 connects each of the sixth vertical plate 261, the third horizontal plate 262 and the front side beam 21.

[0113] The second reinforcing transverse rib 263 and the reinforcing longitudinal rib 264 effectively improve the connection strength between the vehicle mounting point 267 and the third horizontal plate 262. The third reinforcing transverse rib 265 and the fifth reinforcing vertical rib 266 effectively improve the connection strength between the third horizontal plate 262 and the sixth vertical plate 261 and the front side beam 21. The vehicle mounting point 267 is less likely to deform when subjected to a large impact force, and the battery pack is more reliable in installation on the vehicle.

[0114] Specifically, as shown in Figure 13, each mounting structure 26 includes three vehicle mounting points 267, a reinforcing longitudinal rib 264 connecting the second reinforcing transverse rib 263 and the third horizontal plate 262, a plurality of fifth reinforcing vertical ribs 266 arranged at intervals along the second direction, and a single third reinforcing transverse rib 265 connecting the first vertical plate 211 and all fifth reinforcing vertical ribs 266.

[0115] In some embodiments, the battery box front frame beam 20 further includes a frame 27 connected to the edge longitudinal beams of the battery box frame. There are two frames 27. The first end of the front side beam 21 is connected to the first end of the rear cross beam 22 through one of the frames 27, and the second end of the front side beam 21 is connected to the second end of the rear cross beam 22 through the other frame 27. The battery box front frame beam 20 is welded to the edge longitudinal beams of the battery box frame through the frame 27. The frame 27 is integrally die-cast with other components of the battery box front frame. The connection strength between the frame 27, the front frame 27, and the rear cross beam 22 is higher, and thus the connection between the battery box front frame beam 20 and the edge longitudinal beams is more stable and reliable.

[0116] In some embodiments, as shown in FIG14 , the frame 27 includes a seventh vertical plate 271, a fourth transverse reinforcing rib 272, and a sixth vertical reinforcing rib 273. The seventh vertical plate 271 connects the front side beam 21 and the rear cross beam 22. The seventh vertical plate 271 has a welding bevel 2711 for welding to the edge longitudinal beam and a welding locating hole 2712. The fourth transverse reinforcing rib 272, the sixth vertical reinforcing rib 273, and the seventh vertical plate 271 are interconnected in pairs.

[0117] The grid-like arrangement of the fourth transverse reinforcing ribs 272 and the sixth vertical reinforcing ribs 273 further enhances the bending strength of the seventh vertical plate 271. After the seventh vertical plate 271 is connected to the edge longitudinal beam via the welded bevels 2711, the seventh vertical plate 271 is less susceptible to deformation, further enhancing the stability of the connection between the battery box front frame beam 20 and the edge longitudinal beam. Furthermore, the design of the welded locating holes 2712 effectively improves the connection precision between the battery box front frame beam 20 and the edge longitudinal beam.

[0118] In some embodiments, the battery box front frame beam 20 is integrally formed by die-casting of an aluminum alloy, thereby making the battery box front frame beam 20 lighter and better meeting the lightweight requirements of the vehicle.

[0119] The battery pack according to an embodiment of the present application includes a battery box front frame beam 100 as described in any of the above embodiments.

[0120] The technical advantages of the battery pack according to the embodiment of the present application are the same as the technical advantages of the battery box front frame beam 20 in the above embodiment, and will not be repeated here.

[0121] A vehicle according to an embodiment of the present application includes a battery pack as described in the above embodiment.

[0122] The technical advantages of the vehicle according to the embodiment of the present application are the same as the technical advantages of the battery pack in the above-mentioned embodiment, and will not be repeated here.

[0123] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0124] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0125] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0126] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0127] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0128] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present application. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in this field are all within the scope of protection of the present application.

Claims

1. A battery pack end plate, comprising a body and a reinforcement assembly, wherein the body has a cavity, the reinforcement assembly is arranged in the cavity and connected to the inner wall of the cavity, and the reinforcement rib assembly includes intersecting transverse reinforcement ribs and longitudinal reinforcement ribs, and a first reinforcement boss is provided at the intersection of the longitudinal reinforcement ribs and the transverse reinforcement ribs.

2. According to the battery pack end plate according to claim 1, the reinforcement assembly also includes an oblique reinforcement rib, which is arranged between the first reinforcement boss and the inner wall of the cavity, and the extension direction of the oblique reinforcement rib is at an angle to the extension direction of the transverse reinforcement rib, and the extension direction of the oblique reinforcement rib is at an angle to the extension direction of the longitudinal reinforcement rib.

3. The battery pack end plate according to claim 2, wherein a second reinforcing boss is provided at the connection between the transverse reinforcing rib and the inner side wall of the cavity; and / or, a second reinforcing boss is provided at the connection between the longitudinal reinforcing rib and the inner side wall of the cavity; And / or, a second reinforcing boss is provided at the connection between the oblique reinforcing rib and the inner side wall of the cavity.

4. The battery pack end plate according to claim 1, wherein the cavity has an opening, a fixing boss protruding toward the opening is provided on the inner bottom wall of the cavity, and a connecting hole is provided at one end of the fixing boss away from the inner bottom wall of the cavity.

5. According to the battery pack end plate of claim 4, a supporting boss is further provided on the inner bottom wall of the cavity, and the end of the supporting boss away from the inner bottom wall of the cavity extends out of the opening and is used to support the cover plate of the battery pack. 6 . The battery pack end plate according to claim 5 , wherein the supporting boss is connected to the reinforcing assembly, and / or the fixing boss is connected to the reinforcing assembly.

7. According to any one of claims 1-6, the battery pack end plate, the main body includes a bottom plate and a peripheral plate connected to the bottom plate, the bottom plate and the peripheral plate enclose the cavity, and the peripheral plate includes two large side plates spaced apart in the length direction of the main body and connecting side plates connected to both ends of the two large side plates, the two ends of the transverse reinforcing rib are respectively connected to the two large side plates, and the two ends of the longitudinal reinforcing rib are respectively connected to the two connecting side plates. 8 . The battery pack end plate according to claim 7 , wherein the transverse reinforcing ribs are perpendicular to and intersect with the longitudinal reinforcing ribs.

9. A front frame beam of a battery box, comprising a front side beam, a middle longitudinal beam, a mounting bracket and a rear cross beam, wherein the front side beam and the rear cross beam are arranged along a first direction, two ends of the front side beam are respectively connected to two ends of the rear cross beam, a front chamber is formed between the front side beam and the rear cross beam, the middle longitudinal beam is located in the front chamber and extends along the first direction, two ends of the middle longitudinal beam are respectively connected to the front side beam and the rear cross beam, the mounting bracket is located in the front chamber and connected to the middle longitudinal beam, and the mounting bracket has a first wiring harness fixing position.

10. The front frame beam of the battery box according to claim 9, wherein the front side beam comprises: a first vertical plate connected to the middle longitudinal beam; a first horizontal plate and a second horizontal plate, wherein the first horizontal plate and the second horizontal plate are both arranged on a side of the first vertical plate away from the middle longitudinal beam, the first horizontal plate and the second horizontal plate are respectively arranged at the upper end and the lower end of the first vertical plate, and the first horizontal plate is provided with a plurality of waterproof rivet nuts arranged at intervals along a second direction, and the second direction is orthogonal to the first direction; and A first transverse reinforcing rib and a first vertical reinforcing rib, wherein the first transverse reinforcing rib and the first vertical reinforcing rib are both located on a side of the first vertical plate away from the middle longitudinal beam, and the first vertical reinforcing rib is connected to each of the first vertical plate, the first horizontal plate and the second horizontal plate.

11. The front frame beam of the battery box according to claim 10, wherein the front side beam further comprises a mounting platform, the mounting platform is provided with an electrical component mounting position, and the mounting platform is arranged on a side of the first vertical plate away from the middle longitudinal beam; And / or, the front side beam further comprises a mounting boss, the mounting boss is provided with a second wiring harness fixing position, and the mounting boss is arranged on a side of the first vertical plate away from the middle longitudinal beam.

12. The front frame beam of the battery box according to claim 9, wherein the rear cross beam comprises: a second vertical plate and a third vertical plate, wherein the second vertical plate and the second vertical plate are arranged at intervals along the first direction, the second vertical plate is located on a side of the third vertical plate away from the front side beam, and the third vertical plate is connected to the middle longitudinal beam; as well as The second reinforcing vertical rib and the third reinforcing vertical rib form an angle with each other, the second reinforcing vertical rib and the third reinforcing vertical rib are both located between the second vertical plate and the third vertical plate, the second reinforcing vertical rib connects the second vertical plate and the third vertical plate, and the third reinforcing vertical rib connects the second vertical plate and the third vertical plate.

13. The front frame beam of the battery box according to claim 12, the rear cross beam also includes a bottom plate, the bottom plate connects the second vertical plate and the third vertical plate, and the bottom plate is provided with a mounting hole opposite to the bottom guard plate.

14. The front frame beam of the battery box according to claim 9, wherein there are a plurality of intermediate longitudinal beams and the intermediate longitudinal beams are arranged at intervals along a second direction, and the second direction is orthogonal to the first direction.

15. The front frame beam of the battery box according to claim 9, wherein the middle longitudinal beam comprises: A fourth vertical plate and a fifth vertical plate, wherein the fourth vertical plate and the fifth vertical plate are arranged at intervals along a second direction, the second direction is orthogonal to the first direction, and the fourth vertical plate and the fifth vertical plate are both connected to the front side beam and the rear cross beam; as well as A fourth reinforcing vertical rib is located between the fourth vertical plate and the fifth vertical plate and connects the fourth vertical plate and the fifth vertical plate.

16. The front frame beam of the battery box according to claim 15, wherein the mounting bracket comprises: A cylindrical boss, wherein the cylindrical boss is disposed on at least one of the fourth vertical plate and the fifth vertical plate, the cylindrical boss extends in a height direction, and the first wiring harness fixing position comprises a threaded hole disposed on a top surface of the cylindrical boss; and / or A planar boss is arranged at the upper end of at least one of the fourth vertical plate and the fifth vertical plate, the top surface of the planar boss constitutes a wire harness support surface, and the first wire harness fixing position includes a through hole arranged on the wire harness support surface.

17. The battery box front frame beam according to any one of claims 9 to 16, further comprising a mounting structure, wherein the mounting structure is arranged on a side of the front side beam away from the rear cross beam, and the mounting structure comprises a plurality of vehicle mounting points.

18. The front frame beam of the battery box according to claim 17, wherein the mounting mechanism further comprises: a sixth vertical plate, the sixth vertical plate being connected to the front side beam; A third horizontal plate, the third horizontal plate is arranged at the upper end of the sixth vertical plate, and the vehicle mounting point is arranged on the third horizontal plate; A second transverse reinforcement rib and a longitudinal reinforcement rib, wherein the second transverse reinforcement rib connects the third horizontal plate and the vehicle mounting point, and the longitudinal reinforcement rib connects the third horizontal plate and the vehicle mounting point; as well as A third transverse reinforcing rib and a fifth vertical reinforcing rib, wherein the third transverse reinforcing rib connects the fifth vertical reinforcing rib and the front side beam, and the fifth vertical reinforcing rib connects each of the sixth vertical plate, the third horizontal plate and the front side beam.

19. According to the front frame beam of the battery box as described in claim 9, the front frame beam of the battery box also includes a frame connected to the edge longitudinal beam of the battery box frame, and there are two frames, the first end of the front side beam is connected to the first end of the rear cross beam through one of the frames, and the second end of the front side beam is connected to the second end of the rear cross beam through the other frame.

20. The front frame beam of the battery box according to claim 19, wherein the frame comprises: A seventh vertical plate, the seventh vertical plate connecting the front side beam and the rear cross beam, the seventh vertical plate having a welding chamfer for welding with the edge longitudinal beam and a welding positioning hole; as well as The fourth transverse reinforcing rib and the sixth vertical reinforcing rib, the fourth transverse reinforcing rib, the sixth vertical reinforcing rib and the seventh vertical plate are connected to each other in pairs.

21. A battery pack, comprising the battery pack end plate according to any one of claims 1 to 8; or, The battery box front frame beam according to any one of claims 9 to 20.

22. A vehicle comprising the battery pack end plate according to any one of claims 1 to 8; or, The battery box front frame beam according to any one of claims 9 to 20; or The battery pack of claim 21.

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