Structural beam of battery box and battery box

Abstract

The utility model provides a structural beam of a battery box and the battery box, the structural beam is assembled on a box body of the battery box, the structural beam comprises a supporting beam, a dismounting beam and a mounting piece, and the supporting beam is arranged on the box body; the detachable beam is detachably arranged on the supporting beam; the mounting piece comprises a connecting part penetrating through the supporting beam and the dismounting beam, a mounting part arranged at one end of the connecting part and abutting against the dismounting beam, and a fixing part arranged at the other end of the connecting part and matched with the box body; and the detachable beam is detachably connected with the box body through the mounting piece. The detachable beam is detachably arranged on the box body, so that the overall strength of the structural beam is improved; the detachable beam is detachably arranged on the supporting beam, so that when other parts in the box body are mounted, the detachable beam can be detached from the supporting beam, the mounting operation space is increased, more parts can be accommodated in a smaller size, the space waste is avoided, and the problem of low space utilization rate of the battery box is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a structural beam of a battery box and a battery box. Background Art

[0002] With the popularization of new energy commercial vehicles, the electrification of commercial vehicles has become a trend. From the current technical point of view, battery boxes with low energy density are generally used in micro trucks. For mining trucks and buses that require high energy density, there are currently few reasonable layouts of battery boxes, resulting in low space utilization of battery boxes and no significant improvement in product energy density.

[0003] At present, the batteries in the battery box are connected by structural beams at both ends. For example, the patent with publication number CN220652234U discloses an integrated beam structure, a battery pack and electrical equipment. By integrating a liquid cooling plate in the integrated beam, the batteries assembled thereon are cooled. However, the integrated beam is an integrated structure. After the integrated beam is assembled on the box, although the structural strength of the integrated beam can be guaranteed, it is difficult to assemble other components between the side wall of the box and the integrated beam, and the space utilization rate is low. Utility Model Content

[0004] In view of this, the present invention proposes a structural beam of a battery box and a battery box, which can solve the problem of low space utilization of the battery box with the structural beam.

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

[0006] The utility model provides a structural beam of a battery box, wherein the structural beam is assembled on a box body of the battery box, and the structural beam comprises:

[0007] A support beam is provided on the box body;

[0008] a disassembly beam, detachably mounted on the support beam; and

[0009] A mounting member, the mounting member comprising a connecting portion penetrating the support beam and the disassembly beam, a mounting portion disposed at one end of the connecting portion and abutting against the disassembly beam, and a fixing portion disposed at the other end of the connecting portion and cooperating with the box body;

[0010] The disassembly beam is detachably connected to the box body through a mounting piece.

[0011] On the basis of the above technical solution, preferably, the mounting portion is detachably connected to the connecting portion and limits the disassembly beam, and / or the fixing portion is detachably connected to the box body.

[0012] On the basis of the above technical solution, preferably, the support beam is fixedly arranged on the box body.

[0013] Further preferably, the support beam is welded and fixed to the box.

[0014] Further preferably, a rib plate is arranged on the support beam and arranged on the box through a connecting piece.

[0015] On the basis of the above technical scheme, preferably, the connecting part penetrates the support beam and the dismounting beam, a first thread is formed at a first end of the connecting part, a first threaded hole is arranged on the mounting part and screwed with the first thread, the fixing part is a second thread formed at a second end of the connecting part, a second threaded hole is arranged at the position opposite to the fixing part of the box, and the second thread is screwed with the second threaded hole.

[0016] Further preferably, a plurality of mounting pieces are arranged at intervals.

[0017] The utility model also provides a battery box, including shell and the structural beam of battery box above described, the shell includes connected box and box cover, two structural beams are arranged at intervals in the shell, battery module is also arranged in the shell, and two ends of the battery module are matched with two structural beams respectively.

[0018] On the basis of the above technical scheme, preferably, the battery module is integrated on the box.

[0019] On the basis of the above technical scheme, preferably, the box includes a bottom plate, first side plates arranged on opposite sides of the bottom plate, the box cover includes a cover plate and second side plates arranged on opposite sides of the cover plate, the cover plate and the bottom plate are arranged at intervals in the up-down direction, each first side plate and each second side plate are connected to each other between the cover plate and the bottom plate, and the structural beam is arranged on the bottom plate.

[0020] The structural beam of the battery box and the battery box of the utility model have the following beneficial effects compared with the prior art:

[0021] (1) By arranging the dismounting beam on the support beam in a detachable manner, the installation operation space can be increased for electrical device installation such as an electrical installation panel, and more components can be accommodated in a smaller size by dismounting the structural beam, thereby solving the problem of low space utilization rate of a traditional battery box.

[0022] (2) By connecting the dismounting beam to the box, the structural strength of the structural beam is improved, and the expansion force caused by the operation of the battery module can be better resisted. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0024] Figure 1 It is a perspective view of the structural beam of the battery box of the present application.

[0025] Figure 2 It is a perspective view of the support beam in the structural beam of the battery box of the present application.

[0026] Figure 3 It is a perspective view of the dismounting beam in the structural beam of the battery box of the present application.

[0027] Figure 4 It is a perspective view of the mounting beam cooperating with the mounting part in the structural beam of the battery box of the present application.

[0028] Figure 5 It is a perspective view of the battery box of the present application.

[0029] Figure 6 It is an exploded view of the battery box of the present application.

[0030] Figure 7 It is a schematic view of the internal structure of the battery box of the present application.

[0031] Figure 8 It is a perspective view of the box body in the battery box of the present application.

[0032] Figure 9 It is a perspective view of the box cover in the battery box of the present application.

[0033] Reference signs:

[0034] 1, support beam; 2, dismounting beam; 3, mounting part; 31, mounting portion; 32, connecting portion; 33, fixing portion; 4, rib plate; 5, shell; 51, box body; 511, bottom plate; 512, first side plate; 52, box cover; 521, cover plate; 522, second side plate; 6, battery module; 7, electrical device. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0036] As shown in Figures 1 to 7 The utility model provides a kind of structural beam of battery box, which is assembled on the box body 51 of battery box.The structural beam includes support beam 1, dismounting beam 2 and mounting piece 3, wherein support beam 1 is arranged on the box body 51;Dismounting beam 2 is arranged on the support beam 1;The mounting piece 3 includes the connecting portion 32 passing through support beam 1 and dismounting beam 2, the mounting portion 31 being arranged at one end of connecting portion 32 and abutting dismounting beam 2, the fixed portion 33 being arranged at the other end of connecting portion 32 and cooperating with box body 51;Dismounting beam 2 is detachably connected with box body 51 by mounting piece 3.

[0037] By arranging support beam 1 on the box body 51 and dismounting beam 2 on the support beam 1, the whole formed thereby is used to cooperate with the end of the battery to realize the limiting and fixing of the battery.Dismounting beam 2 is detachably arranged on support beam 1, and by arranging the structural beam as a detachable structure, the installation operation space is increased for the installation of electrical devices 7 such as electrical mounting panel, and in limited size, the electrical devices 7 such as electrical panel are installed first, and then the structural beam is installed.However, for the structure of the integral structural beam, there is no operable space for related installation, which leads to the failure to realize the installation of electrical devices 7 such as electrical mounting panel, and greatly reduces the space utilization of the battery box.

[0038] The structural beam provided by the present application solves the problem of low space utilization of the conventional battery box and can accommodate more components in smaller size.

[0039] In addition, dismounting beam 2 is detachably connected with box body 51 by mounting piece 3, and on one hand, dismounting beam 2 can be detachably connected on support beam 1, and on the other hand, it can be connected on box body 51 during assembly, compared with the integral structural beam, the structural beam in the embodiment of the present application greatly enhances the overall structural strength, and when battery module 6 is assembled in the structural beam, it can better resist the expansion force brought by battery module 6 during work.

[0040] Referring to Figure 1 and Figure 7In some embodiments, the support beam 1 is disposed on the box body 51, including but not limited to being fixedly disposed on the box body 51 or being detachably disposed on the box body 51. Optionally, when the support beam 1 is fixedly disposed on the box body 51, the support beam 1 can be fixed by welding or integral molding. In addition, when the support beam 1 is detachably disposed on the box body 51, the support beam 1 can be connected by threaded connection or snap connection.

[0041] In the present application, the support beam 1 is fixedly arranged on the box body 51 to ensure the structural strength of the support beam 1 . Specifically, the support beam 1 is welded and fixed on the box body 51 .

[0042] Reference Figures 1 to 7 To further ensure the structural strength of support beam 1, ribs 4 are provided on support beam 1, which are attached to box 51 via connectors. The support beam 1, equipped with ribs 4, has an overall L-shaped structure. Ribs 4 are connected to box 51, thereby increasing the contact area between the support beam 1 and box 51, further enhancing the structural strength of support beam 1. Connectors include, but are not limited to, rivets and pins. To enhance the connection between ribs 4 and box 51, multiple connectors may be provided at intervals along the extension direction of the ribs 4.

[0043] Reference Figures 1 to 4 In some embodiments, the mounting member 3 includes a connecting portion 32 that passes through the support beam 1 and the disassembly beam 2, a mounting portion 31 disposed at one end of the connecting portion 32 and abutting against the disassembly beam 2, and a fixing portion 33 disposed at the other end of the connecting portion 32 and cooperating with the box 51, thereby connecting the disassembly beam 2 to the support beam 1 and the box 51 simultaneously. The mounting portion 31 cooperates with the disassembly beam 2 to tightly connect the disassembly beam 2 to the support beam 1.

[0044] Combine Figure 7, wherein the disassembly beam 2 is detachably connected to the box body 51 through the mounting member 3, including a mounting portion 31 detachably connected to the connecting portion 32, and limiting the disassembly beam 2; and / or a fixing portion 33 detachably connected to the box body 51. Specifically, one side of the mounting member 3 can be fixedly connected to the disassembly beam 2, and then the middle position of the mounting member 3 is connected to the support beam 1 and the disassembly beam 2, and the other side of the mounting member 3 is detachably connected to the box body 51; when the connection between the mounting member 3 and the box body 51 is released, the disassembly beam 2 can be removed from the box body 51, realizing the detachable connection of the disassembly beam 2. Of course, the mounting member 3 can also be fixedly connected to the box body 51 on one side, and then the middle position of the mounting member 3 is connected to the support beam 1 and the disassembly beam 2, and the other side of the mounting member 3 is detachably connected to the disassembly beam 2 through the detachable connection between the mounting portion 31 and the connecting portion 32; when the connection between the mounting member 3 and the disassembly beam 2 is released, the disassembly beam 2 can be removed from the box body 51. In addition, both sides of the mounting member 3 can be detachably connected to the box body 51 and the disassembly beam 2 respectively, and the middle position of the mounting member 3 is connected to the support beam 1 and the disassembly beam 2.

[0045] It should be noted that the fixed connection of the above-mentioned mounting member 3 includes, but is not limited to, methods such as welding, riveting, or interference fit; the detachable connection of the above-mentioned mounting member 3 includes, but is not limited to, methods such as screwing, bonding, snap connection, or adhesive bonding. In addition, the connecting portion 32 connects the support beam 1 and the disassembly beam 2. Since the disassembly beam 2 is detachably mounted on the support beam 1, the disassembly beam 2 can be detachably mounted on the support beam 1 via the connecting portion 32, or the connecting portion 32 can simply penetrate the support beam 1 and the disassembly beam 2, and the disassembly beam 2 can be coupled to the support beam 1 via other detachable connection methods.

[0046] Reference Figure 1 and Figure 8 Optionally, the connecting portion 32 passes through the support beam 1 and the disassembly beam 2. A first thread is formed on the first end of the connecting portion 32. The mounting portion 31 is provided with a first threaded hole that is threadedly engaged with the first thread. The fixing portion 33 is a second thread formed on the second end of the connecting portion 32. A second threaded hole is provided at a position corresponding to the fixing portion 33 in the box 51. The second thread is threadedly engaged with the second threaded hole. The connecting portion 32 passes through the support beam 1 and the disassembly beam 2. The first end of the connecting portion 32 protrudes from the disassembly beam 2. The first thread is threadedly engaged with the first threaded hole to detachably connect the mounting portion 31 to the connecting portion 32. After the mounting portion 31 is threadedly engaged with the connecting portion 32, the mounting portion 31 faces the side of the disassembly beam 2 and is tightly engaged with the disassembly beam 2, thereby fastening the disassembly beam 2 to the support beam 1. The second end of the connecting portion 32 protrudes from the support beam 1. The second thread is threadedly engaged with the second threaded hole to detachably connect the fixing portion 33 to the box 51.

[0047] In some embodiments, a plurality of the mounting members 3 are arranged at intervals. The arrangement of the plurality of mounting members 3 ensures the connection effect between the disassembly beam 2 and the box body 51 and improves the structural strength of the disassembly beam 2 .

[0048] Reference Figures 1 to 7 In summary, the present embodiment provides a structural beam for a battery box, comprising a support beam 1 and a disassembly beam 2. By detachably attaching the disassembly beam 2 to the support beam 1, installation space is freed up for connecting other components within the battery box. Compared to structural beams with an integrated structure, which require reserved installation space, this further increases the size of the battery box. The battery box with this structural beam in this embodiment increases the installation space for electrical components 7, such as an electrical installation panel. Given a limited size, by first installing the electrical components 7, such as the electrical panel, and then installing the disassembly beam 2, space is not wasted, thus resolving the problem of low space utilization in conventional battery boxes.

[0049] Furthermore, by welding support beam 1 to box 51 and providing ribs 4 on support beam 1 and riveting them to box 51, the structural strength of support beam 1 is ensured. Detachable beam 2, while removably connected to support beam 1, also provides a connection to box 51. Compared to a one-piece structural beam, this increases overall strength, better resisting the expansion force of the battery cell modules and ensuring the high safety performance of box 51.

[0050] like Figures 6 to 9 As shown, the present invention also provides a battery box, comprising a housing 5 and the structural beams of the battery box described in the above embodiment. The housing 5 comprises a connected box body 51 and a box cover 52. Two structural beams are provided at intervals. A battery module 6 is further provided within the housing 5. The two ends of the battery module 6 are respectively engaged with the two structural beams. The structural beams have high structural strength and can better withstand the expansion force of the battery module 6.

[0051] The battery modules 6 are integrated into the housing 51. These modules include, but are not limited to, CTP (Cell to Pack) and CTC (Cell to Chassis) modules. This direct integration of the batteries eliminates the need for straps, end plates, bolts, and other components for securing the batteries. This reduces the number of traditional module components, improves module assembly efficiency, and expands the overall module assembly space, further increasing the capacity of the battery housing 51.

[0052] In some embodiments, the box body 51 includes a bottom plate 511 and a first side plate 512 arranged on opposite sides of the bottom plate 511, and the box cover 52 includes a cover plate 521 and a second side plate 522 arranged on opposite sides of the cover plate 521. The cover plate 521 and the bottom plate 511 are spaced apart from each other, and each first side plate 512 and each second side plate 522 are mutually enclosed and connected between the cover plate 521 and the bottom plate 511; a battery box is formed by enclosing the bottom plate 511, each first side plate 512, each second side plate 522 and the cover plate 521, and an installation space is enclosed therein, and the structural beam and the battery module 6 are both arranged in the installation space.

[0053] The box cover 52 and the box body 51 can be fixedly connected or detachably connected, for example, by welding, riveting, screwing or snap connection.

[0054] In order to facilitate the assembly of the battery module 6, the two first side panels 512 are respectively located on both sides of the length direction of the bottom plate 511, and correspondingly, the two second side panels 522 are respectively located on both sides of the width direction of the cover plate 521, thereby ensuring the subsequent enclosure effect. The two structural beams are respectively located on the opposite sides of the two first side panels 512, and are spaced apart from the first side panels 512. Since the disassembly beam 2 of the structural beam is detachably connected to the support beam 1, after the disassembly beam 2 is removed from the support beam 1, the relevant components can be arranged on the first side panel 512 of the battery box, and the installation is also convenient, so that the battery box has a better installation space for the electrical components 7, does not cause waste of space, and solves the problem of low space utilization of traditional battery boxes.

[0055] Reference Figures 6 to 9 The battery box provided in the embodiment of the present application has the structural beam described in the above embodiment. Therefore, the battery box having the structural beam also has the same effects as the above structural beam. In addition, by integrating the battery module 6 into the box body 51, compared with traditional modules, components such as end plate steel strips can be reduced, thereby expanding the space for the entire module assembly and further increasing the capacity of the battery box, so that the box body 51 has a larger storage space while being smaller in size.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A structural beam of a battery box, characterized in that: The structural beam is assembled on the box body (51) of the battery box, and the structural beam comprises: A support beam (1) is provided on the box (51); a disassembly beam (2) detachably mounted on the support beam (1); and A mounting member (3), the mounting member (3) comprising a connecting portion (32) penetrating the support beam (1) and the disassembly beam (2), a mounting portion (31) disposed at one end of the connecting portion (32) and abutting against the disassembly beam (2), and a fixing portion (33) disposed at the other end of the connecting portion (32) and cooperating with the box (51); The disassembly beam (2) is detachably connected to the box body (51) via the mounting member (3).

2. The structural beam of the battery box according to claim 1, characterized in that: The mounting portion (31) is detachably connected to the connecting portion (32) and limits the disassembly beam (2); and / or the fixing portion (33) is detachably connected to the box body (51).

3. The structural beam of the battery box according to claim 1, characterized in that: The support beam (1) is fixedly arranged on the box body (51).

4. The structural beam of the battery box according to claim 3, characterized in that: The support beam (1) is welded and fixed on the box body (51).

5. The structural beam of the battery box according to claim 3 or 4, characterized in that: The support beam (1) is provided with a rib plate (4), and the rib plate (4) is provided on the box body (51) via a connecting piece.

6. The structural beam of the battery box according to claim 1, characterized in that: The connecting portion (32) passes through the supporting beam (1) and the disassembly beam (2); a first thread is formed on the first end of the connecting portion (32); a first threaded hole is provided on the mounting portion (31) and is screwed to the first thread; the fixing portion (33) is a second thread formed on the second end of the connecting portion (32); a second threaded hole is provided at a position corresponding to the box body (51) and the fixing portion (33); the second thread is screwed to the second threaded hole.

7. The structural beam of the battery box according to any one of claims 1 to 4, characterized in that: A plurality of the mounting members (3) are arranged at intervals.

8. A battery box, characterized in that: The invention comprises a shell (5) and a structural beam of a battery box according to any one of claims 1 to 7, wherein the shell (5) comprises a box body (51) and a box cover (52) connected to each other, two structural beams are arranged at intervals, and a battery module (6) is further arranged in the shell (5), and two ends of the battery module (6) are respectively matched with the two structural beams.

9. The battery box according to claim 8, wherein: The battery module (6) is integrated on the box (51).

10. The battery box according to claim 8, wherein: The box body (51) includes a bottom plate (511) and first side plates (512) arranged on opposite sides of the bottom plate (511); the box cover (52) includes a cover plate (521) and second side plates (522) arranged on opposite sides of the cover plate (521); the cover plate (521) and the bottom plate (511) are arranged with an interval up and down; each of the first side plates (512) and each of the second side plates (522) are mutually enclosed and connected between the cover plate (521) and the bottom plate (511); and the structural beam is arranged on the bottom plate (511).

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