Frame assembly, energy storage structure and vehicle

Abstract

The present application relates to a kind of frame assembly, energy storage structure and vehicle, frame assembly includes the front section of car body, battery pack mounting rack and frame rear section connected in turn along the length direction of car body, the battery pack mounting rack is used to install battery pack.The battery pack mounting rack of the frame assembly of the present application constitutes frame middle section, can reduce the number of parts and frame weight, is favorable to whole vehicle light weight, improves the endurance of vehicle.In addition, battery pack is installed on the battery pack mounting rack constituting frame middle section, battery pack participates whole vehicle stress when collision occurs, can improve the torsional stiffness of whole vehicle.

Description

Technical Field

[0001] This invention belongs to the field of vehicle frame technology, and relates to a frame assembly, energy storage structure and vehicle. Background Technology

[0002] In existing technologies, battery carriers are often used to suspend and install the battery pack on the front and rear crossbeams of the vehicle frame. However, the vehicle frame limits the installation space for the battery pack, and the battery pack, battery carrier, side longitudinal beams, and central crossbeam are all independent components. This makes installation cumbersome, requires high precision, and results in a large weight and high cost. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in the existing power battery installation structure, the battery pack, battery trailer, side longitudinal beams and central cross beam are all independent components, resulting in a large frame weight. The present invention provides a frame assembly, energy storage structure and vehicle.

[0004] To address the aforementioned technical problems, one aspect of this invention is to provide a vehicle frame assembly, comprising a front section of the frame, a battery pack mounting bracket, and a rear section of the frame connected sequentially along the length of the vehicle body, wherein the battery pack mounting bracket is used to mount the battery pack.

[0005] Optionally, along the width direction of the vehicle body, the size of the battery pack mounting bracket is not less than the size of the front section or the rear section of the frame. That is, along the width direction of the vehicle body, the width of the battery pack mounting bracket is not less than the width of the front section or the rear section of the frame. Optionally, the frame assembly further includes a connecting assembly that connects the battery pack mounting bracket to the front section of the frame and / or connects the battery pack mounting bracket to the rear section of the frame.

[0006] Optionally, the front section of the frame includes a front crossbeam and two front longitudinal beams, with the front crossbeam connected between the two front longitudinal beams; the rear section of the frame includes a rear crossbeam and two rear longitudinal beams, with the rear crossbeam connected between the two rear longitudinal beams; the connecting assembly includes a first connector and a second connector, the first connector connecting the battery pack mounting bracket to the front crossbeam and / or connecting the battery pack mounting bracket to the rear crossbeam, and the second connector connecting the battery pack mounting bracket to the front longitudinal beam and / or connecting the battery pack mounting bracket to the rear longitudinal beam.

[0007] Optionally, the frame assembly further includes a cover plate that covers the top of the battery pack mounting bracket, and the second connector is provided with an upward-curved edge for connection with the cover plate.

[0008] Optionally, the connection assembly further includes a third connector disposed outside the second connector and connecting the second connector and the battery pack mounting bracket;

[0009] The third connector is provided with a side flap, which extends outward along the width direction of the vehicle body to enhance the strength of the third connector along the width direction of the vehicle body.

[0010] Optionally, the battery pack mounting frame is constructed by intersecting multiple longitudinal beams, multiple transverse beams, and multiple vertical beams to form a space that can accommodate at least one layer of battery pack.

[0011] Optionally, the battery pack mounting frame further includes multiple inclined beams and multiple mounting frame reinforcing plates, wherein the inclined beams are disposed between the intersection points of the two longitudinal beams and the transverse beams; and the mounting frame reinforcing plates are disposed at the bottom and / or sides of the battery pack mounting frame.

[0012] The vehicle frame assembly provided by the present invention includes a front section of the frame, a battery pack mounting bracket, and a rear section of the frame connected sequentially along the length of the vehicle body. The battery pack mounting bracket is used to mount the battery pack. Thus, the present invention effectively divides a traditional unibody frame into three sections, with the middle section of the frame and the battery pack mounting bracket combined into one. Compared to the prior art, the battery pack mounting bracket of the present invention is located in the middle section of the frame assembly, which can reduce the number of parts and the weight of the frame, contributing to vehicle lightweighting and improving vehicle range. Furthermore, since the battery pack is mounted on the battery pack mounting bracket constituting the middle section of the frame, the battery pack participates in the vehicle's stress distribution during a collision, thereby improving the vehicle's torsional rigidity.

[0013] On the other hand, embodiments of the present invention provide an energy storage structure, including a battery pack and the aforementioned vehicle frame assembly, wherein the battery pack is mounted on the battery pack mounting bracket.

[0014] Optionally, at least one side of the battery pack along the vehicle body direction is provided with a notch for the arrangement of pipelines on the vehicle.

[0015] In another aspect, embodiments of the present invention provide a vehicle that includes the energy storage structure described above. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an energy storage structure provided in an embodiment of the present invention;

[0017] Figure 2 This is an exploded view of a vehicle frame assembly provided in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of a vehicle frame assembly provided in an embodiment of the present invention after the cover plate has been removed;

[0019] Figure 4 This is a partial enlarged view of the connection between the front section and the middle section of the frame assembly provided in an embodiment of the present invention;

[0020] Figure 5 This is a partial enlarged view of the connection between the front end of the reinforcing plate mounted on the left side of the battery pack bracket and the battery pack bracket in an embodiment of the vehicle frame assembly provided by the present invention;

[0021] Figure 6 This is a schematic diagram of an energy storage structure provided in an embodiment of the present invention after the cover plate has been removed;

[0022] Figure 7 yes Figure 6 Enlarged view of point a in the middle;

[0023] Figure 8 yes Figure 3 Enlarged view of point b in the middle;

[0024] Figure 9 This is a schematic diagram of a battery pack for an energy storage structure provided in an embodiment of the present invention;

[0025] Figure 10 This is a schematic diagram of an energy storage structure provided in another embodiment of the present invention;

[0026] The reference numerals in the accompanying drawings are as follows:

[0027] 1. Battery pack; 11. Notch;

[0028] 2. Front section of the frame; 21. Front crossbeam; 211. Main body of the front crossbeam; 212. Front connecting piece; 22. Front longitudinal beam;

[0029] 3. Rear section of the frame; 31. Rear crossbeam; 311. Main body of the rear crossbeam; 312. Rear connecting piece; 32. Rear longitudinal beam;

[0030] 4. Battery pack mounting bracket; 411. Front upper crossbeam; 412. Front lower crossbeam; 413. Left front vertical beam; 414. Right front vertical beam; 415. Rear upper crossbeam; 416. Rear lower crossbeam; 417. Left rear vertical beam; 418. Right rear vertical beam; 419. Left upper longitudinal beam; 4110. Left lower longitudinal beam; 4111. Right upper longitudinal beam; 4112. Right lower longitudinal beam; 4113. Top middle longitudinal beam; 4114. Bottom middle longitudinal beam; 4115. Middle divider; 41151. Top middle crossbeam; 41152. Left middle vertical beam; 41153. Right middle Vertical beam; 41154, Bottom supporting crossbeam; 411541, First supporting crossbeam; 411542, Second supporting crossbeam; 41155, Connecting vertical beam; 41156, Left diagonal beam; 41157, Right diagonal beam; 4116, Front supporting crossbeam; 4117, Rear supporting crossbeam; 4118, Front middle crossbeam; 4119, Rear middle crossbeam; 42, Reinforcing plate installed on the left side of the battery pack bracket; 43, Reinforcing plate installed on the right side of the battery pack bracket; 441, Left front connector; 442, Right front connector; 443, Left rear connector; 444, Right rear connector;

[0031] 5. Connecting components; 51. First connector; 511. Clearance hole; 52. Second connector; 521. Upper flange; 522. Left front inner reinforcing plate; 523. Right front inner reinforcing plate; 524. Left rear inner reinforcing plate; 525. Right rear inner reinforcing plate; 526. Lower flange; 53. Third connector; 531. Side flange; 532. Left front outer reinforcing plate; 533. Right front outer reinforcing plate; 534. Left rear outer reinforcing plate; 535. Right rear outer reinforcing plate;

[0032] 6. Cover plate. Detailed Implementation

[0033] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the invention.

[0034] In this invention, front, rear, top, bottom, left, and right refer to the conventional understanding of vehicle orientation. See [link / reference]. Figure 1 As shown in the coordinate system.

[0035] See Figures 1 to 9 This invention provides an energy storage structure, including a battery pack 1 and a frame assembly. The frame assembly includes a front frame section 2, a battery pack mounting bracket 4, and a rear frame section 3 connected sequentially along the length of the vehicle body. The battery pack mounting bracket 4 is used to mount the battery pack. That is, the battery pack 1 is integrated on the battery pack mounting bracket 4, which constitutes the middle section of the frame.

[0036] The vehicle frame assembly and energy storage structure provided by the embodiments of the present invention are equivalent to dividing a traditional integral vehicle frame into three sections, with the middle section of the frame and the battery pack mounting bracket 4 integrated into one. Compared with the prior art, the battery pack mounting bracket 4 of the vehicle frame assembly of the present invention constitutes the middle section of the frame, reducing the number of main beams, crossbeams, and connecting components used to connect the main beams and crossbeams in the middle section of the frame. Compared with the prior art, the number of parts in the vehicle frame assembly can be reduced by more than 10%, and the weight can be reduced by more than 10%, which is beneficial to the overall vehicle weight reduction and improves the vehicle's range. In addition, the battery pack mounting bracket 4, which constitutes the middle section of the frame, allows the battery pack to participate in the overall vehicle stress during a collision, thereby improving the torsional stiffness of the vehicle. For example, in the prior art, the overall vehicle torsional stiffness is only 7-9 modes, while after applying the vehicle frame assembly of the embodiments of the present invention, the overall vehicle torsional stiffness can reach 14-20 modes.

[0037] The frame assembly also includes a connecting component 5, which connects the battery pack mounting bracket 4 to the front section 2 of the frame and / or connects the battery pack mounting bracket 4 to the rear section 3 of the frame.

[0038] In one embodiment, the size of the battery pack mounting bracket 4 is not less than the size of the front section 2 or the rear section 3 of the vehicle frame along the vehicle width direction. That is, the width of the battery pack mounting bracket 4 is not less than the width of the front section or the rear section of the vehicle frame along the vehicle width direction. In this way, the battery pack mounting bracket 4 has sufficient accommodating space to install more batteries and improve the vehicle's range.

[0039] In one embodiment, see Figure 1 , Figures 6 to 8 The front section 2 of the frame includes a front crossbeam 21 and two front longitudinal beams 22, with the front crossbeam 21 connected between the two front longitudinal beams 22. The rear section 3 of the frame includes a rear crossbeam 31 and two rear longitudinal beams 32, with the rear crossbeam 31 connected between the two rear longitudinal beams 32. The connecting assembly 5 includes a first connector 51 and a second connector 52. The first connector 51 connects the battery pack mounting bracket 4 to the front crossbeam 21 and / or connects the battery pack mounting bracket 4 to the rear crossbeam 31. The second connector 52 connects the battery pack mounting bracket 4 to the front longitudinal beams 22 and / or connects the battery pack mounting bracket 4 to the rear longitudinal beams 32.

[0040] Specifically, see Figure 8 and Figure 9 The front crossbeam 21 includes a front crossbeam body 211 and a front connector 212. The front connector 212 is fixed to the inner side of the front longitudinal beam 22. The left end of the front crossbeam body 211 is fixedly connected to the left front connector 212, and the right end of the front crossbeam body 211 is fixedly connected to the right front connector 212. The rear crossbeam 31 includes a rear crossbeam body 311 and a rear connector 312. The rear connector 312 is fixed to the inner side of the rear longitudinal beam 32. The left end of the rear crossbeam body 311 is fixedly connected to the left rear connector 312, and the right end of the rear crossbeam body 311 is fixedly connected to the right rear connector 312.

[0041] The rear longitudinal beam 32 is an inward-opening U-shaped beam structure, the rear crossbeam body 311 is an inward-opening U-shaped beam structure, and the rear connector 312 is an inward-opening U-shaped beam structure. The rear connector 312 is embedded in the rear longitudinal beam 32, and the rear crossbeam body 311 is inserted into the rear connector 312. The first connector 51 is plate-shaped, and the rear first connector 51 is clamped between the front side of the rear crossbeam body 311 and the rear side of the battery pack mounting bracket 4.

[0042] Similarly, the front longitudinal beam 22 is an inward-opening U-shaped beam structure, the front crossbeam body 211 is an inward-opening U-shaped beam structure, and the front connector 212 is an inward-opening U-shaped beam structure. The front connector 212 is embedded in the front longitudinal beam 22, and the front crossbeam body 211 is inserted into the front connector 212. The rear first connector 51 is clamped between the rear side of the front crossbeam body 211 and the front side of the battery pack mounting bracket 4.

[0043] Preferably, the battery pack mounting bracket 4 is connected to the front section 2 of the vehicle frame via a connecting assembly 5, and the battery pack mounting bracket 4 is also connected to the rear section 3 of the vehicle frame via a connecting assembly 5. That is, there are two connecting assemblies 5: one connecting assembly 5 has a first connecting member 51 connecting the battery pack mounting bracket 4 to the front crossbeam 21, and the other connecting assembly 5 has a first connecting member 51 connecting the battery pack mounting bracket 4 to the rear crossbeam 31. One connecting assembly 5 has a second connecting member 52 connecting the battery pack mounting bracket 4 to the front longitudinal beam 22, and the other connecting assembly 5 has a second connecting member 52 connecting the battery pack mounting bracket 4 to the rear longitudinal beam 32.

[0044] In one embodiment, see Figure 1 and Figure 2 The frame assembly also includes a cover plate 6, and the second connector 52 is provided with an upper flange 521 for connecting to the cover plate 6, the upper flange 521 extending outward along the left-right direction of the vehicle body. The cover plate 6 covers the top of the battery pack mounting bracket 4 for top protection of the battery pack 1. Preferably, the cover plate 6 is fixed to the upper flange 521 of the second connector 52 by fasteners (e.g., bolts).

[0045] When the cover plate 6 is bolted to the upper flange 521 of the second connector 52 of the battery pack mounting bracket 4, bolts that are too short have poor bending resistance and rigidity, while bolts that are too long occupy a large amount of vertical space. Therefore, preferably, the fixing length of the bolt is 300-500mm.

[0046] Of course, in other embodiments, the cover plate 6 may also be riveted or welded to the top of the battery pack mounting bracket 4.

[0047] In one embodiment, see Figure 4 , Figure 7 and Figure 8 The connecting assembly 5 further includes a third connector 53, which is disposed outside the second connector 52 and connects the second connector 52 and the battery pack mounting bracket 4. The third connector 53 is provided with a side flange 531, which extends along the width direction of the vehicle body. Figure 1 The third connector 531 is positioned outward in the left-right direction to enhance its strength along the width direction of the vehicle body.

[0048] In one embodiment, see Figure 3 and Figure 4 The second connecting member 52 has two on the front side and two on the rear side. The second connecting member 52 on the front side is a left front inner reinforcing plate 522 and a right front inner reinforcing plate 523, and the second connecting member 52 on the rear side is a left rear inner reinforcing plate 524 and a right rear inner reinforcing plate 525. The left front inner reinforcing plate 522 is attached to and fixed on the left side of the front section 2 of the frame (i.e., the left side of the left front longitudinal beam 21), and the right front inner reinforcing plate 523 is attached to and fixed on the right side of the front section 2 of the frame (i.e., the right side of the right front longitudinal beam 21). The left rear inner reinforcing plate 524 is attached to and fixed on the left side of the rear section 3 of the frame (i.e., the left side of the left rear longitudinal beam 31), and the right rear inner reinforcing plate 525 is attached to and fixed on the right side of the rear section 3 of the frame (i.e., the right side of the right rear longitudinal beam 31). In this way, the connection strength between the front side of the battery pack mounting bracket 4 and the front section 2 of the frame can be further increased by the left front inner reinforcing plate 522 and the right front inner reinforcing plate 523, and the connection strength between the rear side of the battery pack mounting bracket 4 and the rear section 3 of the frame can be further increased by the left rear inner reinforcing plate 524 and the right rear inner reinforcing plate 525.

[0049] In one embodiment, see Figure 3 and Figure 4Two third connecting members 53 are provided on the front side and two on the rear side. The front third connecting members 53 are a left front outer reinforcing plate 532 and a right front outer reinforcing plate 533, and the rear third connecting members 53 are a left rear outer reinforcing plate 534 and a right rear outer reinforcing plate 535. The left front outer reinforcing plate 532 is attached to and fixed to the left side of the left front inner reinforcing plate 522. The left front outer reinforcing plate 532 is fixed to the left side of the front section 2 of the frame (i.e., the left front longitudinal beam 21) and the front end of the battery pack mounting bracket 4 by bolts, riveting, or welding. The right front outer reinforcing plate 533 is attached to and fixed to the right side of the right front inner reinforcing plate 523. The right front outer reinforcing plate 533 is fixed to the right side of the frame 523 by bolts, riveting, or welding. The left rear outer reinforcing plate 534 is attached to the left side of the left rear inner reinforcing plate 524 and is fixedly connected to the left side of the rear section 3 of the vehicle frame (the left rear longitudinal beam 31) and the rear end of the battery pack mounting bracket 4 by bolts, rivets, or welding. The right rear outer reinforcing plate 535 is attached to the right side of the right rear inner reinforcing plate 525 and is fixedly connected to the right side of the rear section 3 of the vehicle frame (the right rear longitudinal beam 31) and the rear end of the battery pack mounting bracket 4 by bolts, rivets, or welding. In this way, the connection strength between the front side of the battery pack mounting bracket 4 and the front section 2 of the vehicle frame can be increased by the left front outer reinforcing plate 532 and the right front outer reinforcing plate 533, and the connection strength between the rear side of the battery pack mounting bracket 4 and the rear section 3 of the vehicle frame can be increased by the left rear outer reinforcing plate 534 and the right rear outer reinforcing plate 535.

[0050] In one embodiment, see Figure 3 and Figure 6 The battery pack mounting frame 4 is a single-layer frame structure constructed by intersecting multiple longitudinal beams, multiple transverse beams, and multiple vertical beams to form a space to accommodate one layer of battery packs 1. The battery pack mounting frame 4 is roughly square, and multiple battery packs 1 are arranged in a single layer in the vertical direction. For example, Figure 1 In the embodiment shown, there are two battery packs 1, which are arranged in a front-to-back direction (front-to-back arrangement).

[0051] The longitudinal beams extend along the front-to-back direction of the vehicle body, the transverse beams extend along the left-to-right direction of the vehicle body, and the vertical beams extend along the up-down direction of the vehicle body.

[0052] However, in other embodiments, corresponding to the battery pack mounting bracket 4 of the single-layer frame structure, the battery pack 1 may also be provided with only one.

[0053] Of course, in other embodiments, corresponding to the single-layer frame structure of the battery pack mounting bracket 4, multiple battery packs 1 can also be provided. Multiple battery packs 1 can be arranged side by side, or multiple battery packs 1 can be arranged in multiple rows and columns (rectangular array arrangement).

[0054] The single-layer frame structure of the battery pack mounting bracket 4 can be used in models where the number of battery packs 1 required is small. Alternatively, it can be used in models where the vertical installation space for the battery packs 1 is limited.

[0055] Of course, in other embodiments, when multiple battery packs 1 are provided, the battery pack mounting frame 4 is a multi-layer frame structure constructed by multiple longitudinal beams and multiple transverse beams intersecting each other to form a space to accommodate multiple battery packs 1. The multiple battery packs 1 are arranged in multiple layers in the vertical direction. In this case, each layer of the multi-layer frame structure is used to install the battery pack 1 of the corresponding layer. Each layer is provided with one or more battery packs 1. When multiple battery packs 1 are provided in each layer, the multiple battery packs 1 in each layer are arranged front-to-back or left-to-right, or the multiple battery packs 1 in each layer are arranged in multiple rows and columns, or the multiple battery packs 1 in some layers are arranged front-to-back or left-to-right, and the multiple battery packs 1 in some layers are arranged in multiple rows and columns.

[0056] The multi-layer frame structure of the battery pack mounting bracket 4 can be used in models where a large number of battery packs 1 are required, or in models where the vertical mounting height of the battery pack 1 is relatively large.

[0057] In summary, the energy storage structure of this invention can arrange multiple battery packs according to the overall vehicle size in the X direction (front-rear direction of the vehicle body), Y direction (left-right direction of the vehicle body), and Z direction (up-down direction of the vehicle body).

[0058] In one embodiment, see Figure 2 and Figure 3The battery pack mounting frame 4 has a square frame structure. The battery pack mounting frame 4 has multiple crossbeams including a front upper crossbeam 411, a front lower crossbeam 412, a rear upper crossbeam 415, and a rear lower crossbeam 416; multiple longitudinal beams including a left front vertical beam 413, a right front vertical beam 414, a right upper longitudinal beam 4111, and a right lower longitudinal beam 4112; and multiple vertical beams including a left front vertical beam 413, a right front vertical beam 414, a left rear vertical beam 417, and a right rear vertical beam 418. The front upper crossbeam 411, front lower crossbeam 412, and rear upper crossbeam... 415 and the rear lower crossbeam 416 extend along the left-right direction of the vehicle body; the left upper longitudinal beam 419, left lower longitudinal beam 4110, right upper longitudinal beam 4111, and right lower longitudinal beam 4112 extend along the front-rear direction of the vehicle body; the left front vertical beam 413, right front vertical beam 414, left rear vertical beam 417, and right rear vertical beam 418 extend along the vertical direction of the vehicle body; the front upper crossbeam 411 is fixedly connected between the front end of the left upper longitudinal beam 419 and the front end of the right upper longitudinal beam 4111; the front lower crossbeam 412 is fixedly connected to... Between the front end of the lower left longitudinal beam 4110 and the front end of the lower right longitudinal beam 4112, the left front vertical beam 413 is fixedly connected between the front end of the upper left longitudinal beam 419 and the front end of the lower left longitudinal beam 4110; the right front vertical beam 414 is fixedly connected between the front end of the upper right longitudinal beam 4111 and the front end of the lower right longitudinal beam 4112; the rear upper horizontal beam 415 is fixedly connected between the rear end of the upper left longitudinal beam 419 and the rear end of the upper right longitudinal beam 4111; and the rear lower horizontal beam 416 is fixedly connected between the front end of the lower left longitudinal beam 4110 and the front end of the lower right longitudinal beam 4112. Between the rear end of beam 4110 and the rear end of the lower right longitudinal beam 4112, the left rear vertical beam 417 is fixedly connected between the rear end of the upper left longitudinal beam 419 and the rear end of the lower left longitudinal beam 4110, and the right rear vertical beam 418 is fixedly connected between the rear end of the upper right longitudinal beam 4111 and the rear end of the lower right longitudinal beam 4112; the front upper crossbeam 411, the left front vertical beam 413, the front lower crossbeam 412, and the right front vertical beam 414 are sequentially connected to form a front closed-loop frame structure to enhance the front strength of the battery pack mounting bracket 4. The rear upper crossbeam 415, the left rear vertical beam 417, the rear lower crossbeam 416, and the right rear vertical beam 418 are sequentially connected to form a rear closed-loop frame structure to enhance the rear strength of the battery pack mounting bracket 4. The front upper crossbeam 411, left upper longitudinal beam 419, rear upper crossbeam 415, and right upper longitudinal beam 4111 are connected in sequence to form a top closed-loop frame structure to enhance the top strength of the battery pack mounting bracket 4. The front lower crossbeam 412, left lower longitudinal beam 4110, rear lower crossbeam 416, and right lower longitudinal beam 4112 are connected in sequence to form a bottom closed-loop frame structure to enhance the bottom strength of the battery pack mounting bracket 4. The left upper longitudinal beam 419, left front vertical beam 413, left lower longitudinal beam 4110, and left rear vertical beam 418 are connected in sequence to form a left closed-loop frame structure to enhance the left side strength of the battery pack mounting bracket 4.The upper right longitudinal beam 4111, the front right vertical beam 414, the lower right longitudinal beam 4112, and the rear right vertical beam 418 are connected in sequence to form a closed-loop frame structure on the right side to enhance the strength of the right side of the battery pack mounting bracket 4.

[0059] In this way, the front closed-loop frame structure, rear closed-loop frame structure, top closed-loop frame structure, bottom closed-loop frame structure, left closed-loop frame structure and right closed-loop frame structure can enhance the strength of the battery pack mounting bracket 4 in all directions and enhance the overall strength of the battery pack mounting bracket 4, so that the battery pack 1 can be well protected from all directions when the vehicle is involved in a collision.

[0060] In one embodiment, see Figure 2 and Figure 3 The battery pack mounting bracket 4 includes multiple longitudinal beams, including a top intermediate longitudinal beam 4113 and a bottom intermediate longitudinal beam 4114, which extend along the front-rear direction of the vehicle body. The top intermediate longitudinal beam 4113 may have one or multiple beams arranged in parallel, and the bottom intermediate longitudinal beam 4114 may have one or multiple beams arranged in parallel. For example, in... Figure 3 In the illustrated embodiment, two top intermediate longitudinal beams 4113 and two bottom intermediate longitudinal beams 4114 are provided, and the top intermediate longitudinal beam 4113 and the corresponding bottom intermediate longitudinal beam 4114 are aligned vertically. The top intermediate longitudinal beam 4113 connects between the front upper crossbeam 411 and the rear upper crossbeam 415, and is located between the left upper longitudinal beam 419 and the right upper longitudinal beam 4111 in the left-right direction of the frame assembly. The bottom intermediate longitudinal beam 4114 connects between the front lower crossbeam 412 and the rear lower crossbeam 416, and is located between the left lower longitudinal beam 4110 and the right lower longitudinal beam 4112 in the left-right direction of the frame assembly. The top intermediate longitudinal beam 4113 enhances the top strength of the battery pack mounting bracket 4, and the bottom intermediate longitudinal beam 4114 enhances the bottom strength of the battery pack mounting bracket 4. This further enhances the overall strength of the battery pack mounting bracket 4.

[0061] In one embodiment, see Figure 2 and Figure 3 The battery pack mounting frame 4 further includes an intermediate partition 4115 for separating the battery packs 1 in the front-to-back direction. One or more intermediate partitions 4115 are provided to divide the interior of the battery pack mounting frame 4 into multiple battery pack mounting spaces arranged in a front-to-back manner. In this way, each battery pack mounting space can be used to place a battery pack 1, increasing the number of battery packs 1.

[0062] For example, in Figure 2In the illustrated embodiment, a central partition 4115 is provided to divide the interior of the battery pack mounting frame 4 into two battery pack mounting spaces arranged in a front-to-back pattern. One or more battery packs can be arranged in each battery pack mounting space.

[0063] Of course, in other embodiments, the battery pack mounting frame 4 may also include an intermediate partition for separating the battery packs 1 in the left and right directions. One or more intermediate partitions may be provided to divide the interior of the battery pack mounting frame 4 into multiple battery pack mounting spaces arranged in the left and right directions.

[0064] In one embodiment, see Figure 2 and Figure 3 The intermediate partition frame 4115 includes a top intermediate crossbeam 41151 (forming a crossbeam of the battery pack mounting frame 4), a left intermediate vertical beam 41152 (forming a vertical beam of the battery pack mounting frame 4), a right intermediate vertical beam 41153 (forming a vertical beam of the battery pack mounting frame 4), and a bottom supporting crossbeam 41154 (forming a crossbeam of the battery pack mounting frame 4). The top intermediate crossbeam 41151 and the bottom supporting crossbeam 41154 extend along the left-right direction of the vehicle body, and the left intermediate vertical beam 41152 and the right intermediate vertical beam 41153 extend along the up-down direction of the vehicle body. The top intermediate crossbeam 41151 connects the upper left longitudinal beam 419 and the upper right longitudinal beam 4111, and the top intermediate crossbeam 41151 is located between the upper front crossbeam 411 and the upper rear crossbeam 415 in the front-rear direction of the frame assembly. The bottom supporting crossbeam 41154 connects the lower left longitudinal beam 4110 and the right... Between the lower longitudinal beams 4112, the bottom supporting crossbeam 41154 is located between the front lower crossbeam 415 and the rear lower crossbeam 616 in the front-rear direction of the frame assembly; the upper end of the left middle vertical beam 41152 is connected to the connection between the top middle crossbeam 41151 and the upper left longitudinal beam 419, and the lower end of the left middle vertical beam 41152 is connected to the connection between the lower left longitudinal beam 4110 and the bottom supporting crossbeam 41154; the right middle... The upper end of the middle vertical beam 41153 is connected to the connection between the top middle horizontal beam 41151 and the upper right vertical beam 4111, and the lower end of the right middle vertical beam 41153 is connected to the connection between the lower right vertical beam 4112 and the bottom supporting horizontal beam 41154. The top middle horizontal beam 41151, the left middle vertical beam 41152, the bottom supporting horizontal beam 41154, and the right middle vertical beam 41153 are connected sequentially to form a central closed-loop frame structure. The middle partition frame 4115 can enhance the central strength of the battery pack mounting frame 4. Furthermore, it further enhances the overall strength of the battery pack mounting frame 4.

[0065] In one embodiment, see Figure 2 and Figure 3The bottom supporting beam 41154 includes a first supporting beam 411541 and a second supporting beam 411542. The first supporting beam 411541 is located in front of the second supporting beam 411542. The lower end of the left middle vertical beam 41152 is located between the left end of the first supporting beam 411541 and the left end of the second supporting beam 411542. The lower end of the right middle vertical beam 41153 is located between the right end of the first supporting beam 411541 and the right end of the second supporting beam 411542. The bottom supporting beam 41154 and the bottom middle longitudinal beam 4114 together support the bottom of the battery pack 1.

[0066] In one embodiment, see Figure 2 and Figure 3 The battery pack mounting frame 4 further includes a front support beam 4116 (a beam constituting the battery pack mounting frame 4) and a rear support beam 4117 (a beam constituting the battery pack mounting frame 4); the front support beam 4116 is connected between the front end of the lower left longitudinal beam 4110 and the front end of the lower right longitudinal beam 4112, and the front support beam 4116 is located behind the lower left longitudinal beam 412; the rear support beam 4117 is connected between the rear end of the lower left longitudinal beam 4110 and the rear end of the lower right longitudinal beam 4112, and the rear support beam 4117 is located in front of the lower right longitudinal beam 416; the front support beam 4116 and the first support beam 411541 are used to support the bottom of a battery pack 1 on the front side, and the rear support beam 4117 and the second support beam 411542 are used to support the bottom of a battery pack 1 on the rear side. In this way, the front and rear sides of the bottom of the front battery pack 1 are supported by the front support beam 4116 and the first support beam 411541, and the bottom middle longitudinal beam 4114 is also supported on the bottom of the front battery pack 1, thus providing stable support for the front battery pack 1. Similarly, the front and rear sides of the bottom of the rear battery pack 1 are supported by the second support beam 411542 and the rear support beam 4117, and the bottom middle longitudinal beam 4114 is also supported on the bottom of the rear battery pack 1, thus providing stable support for the rear battery pack 1.

[0067] If the battery pack mounting bracket 4 is a multi-layer frame structure, the bottom of the upper frame structure and the top of the lower frame structure are combined into one to save materials and reduce the weight of the battery pack mounting bracket 4.

[0068] In one embodiment, see Figure 2 and Figure 3The intermediate partition 4115 also includes a connecting vertical beam 41155 (a vertical beam constituting the battery pack mounting bracket 4). The connecting vertical beam 41155 extends along the vertical direction of the vehicle body. The upper end of the connecting vertical beam 41155 is connected to the junction of the top intermediate longitudinal beam 4113 and the top intermediate cross beam 41151, and the lower end of the connecting vertical beam 41155 is connected to the bottom intermediate longitudinal beam 4114 and located between the first supporting cross beam 411541 and the second supporting cross beam 411542. The connecting vertical beam 41155 enhances the strength of the intermediate partition 4115.

[0069] In one embodiment, see Figure 2 and Figure 3 The top intermediate longitudinal beam 4113, bottom intermediate longitudinal beam 4114, and connecting vertical beam 41155 are each provided in pairs. The left top intermediate longitudinal beam 4113 is located directly above the right bottom intermediate longitudinal beam 4114, and the right top intermediate longitudinal beam 4113 is located directly above the right bottom intermediate longitudinal beam 4114. The left connecting vertical beam 41155 is fixedly connected between the left top intermediate longitudinal beam 4113 and the left bottom intermediate longitudinal beam 4114, and the right connecting vertical beam 41155 is fixedly connected between the right top intermediate longitudinal beam 4113 and the right bottom intermediate longitudinal beam 4114. The provision of two top intermediate longitudinal beams 4113, bottom intermediate longitudinal beam 4114, and connecting vertical beam 41155 further increases the strength of the battery pack mounting bracket 4.

[0070] In one embodiment, the battery pack mounting bracket 4 further includes a plurality of inclined beams disposed between the intersection points of the two longitudinal beams and the transverse beams.

[0071] In one specific embodiment, see Figure 2 and Figure 3The intermediate partition frame 4115 further includes a left inclined beam 41156 (forming an inclined beam of the battery pack mounting frame 4) and a right inclined beam 41157 (forming an inclined beam of the battery pack mounting frame 4); the upper end of the left inclined beam 41156 is connected to the junction of the top intermediate longitudinal beam 4113 and the top intermediate cross beam 41151 on the left side, and the lower end of the left inclined beam 41156 is connected to the lower left longitudinal beam 4110 and located between the first supporting cross beam 411541 and the second supporting cross beam 411542; the upper end of the right inclined beam 41157 is connected to the junction of the top intermediate longitudinal beam 4113 and the top intermediate cross beam 41151 on the right side, and the lower end of the right inclined beam 41157 is connected to the lower right longitudinal beam 4112 and located between the first supporting cross beam 411541 and the second supporting cross beam 411542. The left diagonal beam 41156 and the right diagonal beam 41157 can further enhance the strength of the intermediate partition 4115.

[0072] In one embodiment, the battery pack mounting bracket 4 further includes a plurality of mounting bracket reinforcing plates, which are disposed at the bottom and / or sides of the battery pack mounting bracket.

[0073] In one embodiment, see Figures 2 to 5 The battery pack bracket includes multiple mounting reinforcement plates, including a left-side mounting reinforcement plate 42 and a right-side mounting reinforcement plate 43. These plates extend along the longitudinal direction of the vehicle body. The left-side mounting reinforcement plate 42 is detachably connected between the middle of the left front vertical beam 413 and the middle of the left rear vertical beam 417, and the right-side mounting reinforcement plate 413 is detachably connected between the middle of the right front vertical beam 414 and the middle of the right rear vertical beam 418. Thus, when the left-side and right-side mounting reinforcement plates 42 and 43 are in use, the battery pack 1 can be inserted into the battery pack mounting bracket 4 from either the left or right side. The left-side mounting reinforcement plate 42 reinforces the left side of the battery pack mounting bracket 4 and also provides left-side impact protection for the battery pack 1. The reinforcing plate 42 installed on the right side of the battery pack bracket can strengthen the right side of the battery pack mounting bracket 4, and at the same time, it can also serve as a shock absorber for the right side of the battery pack 1.

[0074] Of course, in other embodiments, one of the reinforcing plate 42 mounted on the left side of the battery pack bracket and the reinforcing plate 43 mounted on the right side of the battery pack bracket may be non-removable.

[0075] In one embodiment, see Figures 2 to 5The battery pack mounting bracket 4 includes multiple crossbeams, including a front center crossbeam 4118 and a rear center crossbeam 4119, which extend along the left-right direction of the vehicle body. The front center crossbeam 4118 connects the middle of the left front vertical beam 413 and the middle of the right front vertical beam 414, and the rear center crossbeam 4119 connects the middle of the left rear vertical beam 417 and the middle of the right rear vertical beam 418. The front center crossbeam 4118 strengthens the front side of the battery pack mounting bracket 4, and the rear center crossbeam 4119 strengthens the rear side of the battery pack mounting bracket 4.

[0076] In one embodiment, see Figures 2 to 5 The battery pack mounting bracket 4 also includes a left front connector 441, a right front connector 442, a left rear connector 443, and a right rear connector 444. The left front connector 441 is fixed to the left front vertical beam 413 by bolts, riveting, or welding. The right front connector 442 is fixed to the right front vertical beam 414 by bolts, riveting, or welding. The left rear connector 443 is fixed to the left rear vertical beam 417 by bolts, riveting, or welding. The right rear connector 444 is fixed to the left rear vertical beam 417 by bolts, riveting, or welding. The battery pack bracket is welded and fixed to the right rear vertical beam 418; the front end of the left side mounting reinforcement plate 42 of the battery pack bracket is fixed to the left front connector 441 by bolts, the rear end of the left side mounting reinforcement plate 42 of the battery pack bracket is fixed to the left rear connector 443 by bolts, the front end of the right side mounting reinforcement plate 43 of the battery pack bracket is fixed to the right front connector 442 by bolts, and the rear end of the right side mounting reinforcement plate 43 of the battery pack bracket is fixed to the right rear connector 444 by bolts.

[0077] The left front connector 441, right front connector 442, left rear connector 443, and right rear connector 444 are provided to increase the connection strength at the connection points and facilitate the installation and removal of the reinforcing plate 42 on the left side of the battery pack bracket and the reinforcing plate 43 on the right side of the battery pack bracket.

[0078] Furthermore, the second connector 52 can also be welded to the battery pack mounting bracket 4. That is, the left front inner reinforcing plate 522, the right front inner reinforcing plate 523, the left rear inner reinforcing plate 524, and the right rear inner reinforcing plate 525 can also be welded to the battery pack mounting bracket 4 to further increase the connection strength.

[0079] The left front inner reinforcing plate 522 and the right front inner reinforcing plate 523 can be welded to the front section 2 of the frame, and the left rear inner reinforcing plate 524 and the right rear inner reinforcing plate 525 can be welded to the rear section 3 of the frame.

[0080] In one embodiment, see Figure 9The second connector 52 is further provided with a downward-curved edge 526, which extends inward along the left-right direction of the vehicle body. The downward-curved edge 526 of the left front inner reinforcing plate 522 is supported on the bottom left side of the front section 2 of the frame (the bottom surface of the left front longitudinal beam 21). The downward-curved edge 526 of the right front inner reinforcing plate 523 is supported on the bottom right side of the front section 4 of the frame (the bottom surface of the right front longitudinal beam 21); the downward-curved edge 526 of the left rear inner reinforcing plate 524 is supported on the bottom left side of the rear section 3 of the frame (the bottom surface of the left rear longitudinal beam 31); and the downward-curved edge 526 of the right rear inner reinforcing plate 525 is supported on the bottom right side of the rear section 4 of the frame (the bottom surface of the right rear longitudinal beam 31). The downward-curved edge 526 can increase the contact area between the second connector 52 and the front section 2 and rear section 3 of the frame, thereby enhancing the connection strength.

[0081] In one embodiment, the connecting assembly 5 further includes a diagonal brace beam, which connects the lower flange 526 to the battery pack mounting bracket 4. Specifically, the diagonal braces of the multiple connecting assemblies 5 are divided into a left front diagonal brace beam, a right front diagonal brace beam, a left rear diagonal brace beam, and a right rear diagonal brace beam for the battery pack bracket. The upper end of the left front diagonal brace beam is fixed to the lower surface of the lower flange 526 of the left front inner reinforcing plate 522 by bolts, riveting, or welding. The lower end of the left front diagonal brace beam is fixed to the front side (front lower crossbeam 412) of the battery pack mounting bracket 4 by welding. The left side of the left front diagonal brace beam is fixed to the right side of the left front outer reinforcing plate 532. The upper end of the right front diagonal brace of the battery pack bracket is fixed to the lower surface of the lower flange 526 of the right front inner reinforcing plate 523, the lower end of the right front diagonal brace of the battery pack bracket is fixed to the front side (front lower crossbeam 412) of the battery pack mounting bracket 4, and the right side of the right front diagonal brace of the battery pack bracket is fixed to the left side of the right front outer reinforcing plate 533; the left front diagonal brace of the battery pack bracket and the right front diagonal brace of the battery pack bracket can further increase the connection strength between the front side of the battery pack mounting bracket 4 and the front section 2 of the vehicle frame.

[0082] The upper end of the left rear diagonal brace of the battery pack bracket is fixed to the lower surface of the lower flange 526 of the left rear inner reinforcing plate 524, and the lower end of the left rear diagonal brace of the battery pack bracket is fixed to the rear side (rear lower crossbeam 416) of the battery pack mounting bracket 4. The left side of the left rear diagonal brace of the battery pack bracket is fixed to the right side of the left rear outer reinforcing plate 534. The upper end of the right rear diagonal brace of the battery pack bracket is fixed to the lower surface of the lower flange 526 of the right rear inner reinforcing plate 525, and the lower end of the right rear diagonal brace of the battery pack bracket is fixed to the rear side (rear lower crossbeam 416) of the battery pack mounting bracket 4. The right side of the right rear diagonal brace of the battery pack bracket is fixed to the left side of the right rear outer reinforcing plate 535. The left and right rear diagonal braces of the battery pack bracket can further increase the connection strength between the rear side of the battery pack mounting bracket 4 and the rear section 3 of the vehicle frame.

[0083] In one embodiment, see Figure 6 and Figure 7 The battery pack 1 is convex in shape, meaning that notches 11 are provided on both sides of the battery pack 1 along the vehicle body direction. These notches 11 are used for the arrangement of vehicle wiring. The notches 11 in the battery pack 1 provide space for wiring arrangement, facilitating the overall wiring layout of the vehicle. Furthermore, the notches 11 are located on opposite sides of the battery pack 1, making it easier to disassemble, install, and maintain wiring, and facilitating the arrangement of connectors.

[0084] However, in other embodiments, the notch 11 may be made only on one side of the battery pack 1 in the left-right direction of the vehicle body. That is, the notch 11 is made only on one side of the battery pack 1 in the left-right direction of the vehicle body. In this case, it is equivalent to making the notch 11 on one side of the square battery pack 1.

[0085] Additionally, see Figure 10 Another embodiment of the present invention provides an energy storage structure, which is similar to... Figure 1 The difference in the illustrated embodiment is that the battery pack 1 is square. In this case, for the sake of vehicle wiring layout, the portion of the top center crossbeam 41151 located between the two top center longitudinal beams 4113 is eliminated. The area between the two top center longitudinal beams 4113 is used for vehicle wiring layout.

[0086] The battery pack mounting bracket 4 is fixedly connected to the front and rear sides with first connectors 51, and the first connectors 51 are provided with clearance holes 511 for pipelines to pass through. Compared with the "U"-shaped battery pack 1, the square battery pack 1 does not need to open notches on the opposite sides. The square battery pack 1 has a higher internal space utilization rate and can accommodate more batteries, which is conducive to increasing the battery pack capacity and improving the overall vehicle range.

[0087] In addition, embodiments of the present invention provide a vehicle that includes the energy storage structure described in the above embodiments.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle frame assembly, characterized in that, The vehicle includes a front frame section, a battery pack mounting bracket, and a rear frame section connected sequentially along the length of the vehicle body, wherein the battery pack mounting bracket is used to install the battery pack. The frame assembly also includes a connecting component that connects the battery pack mounting bracket to the front section of the frame and / or connects the battery pack mounting bracket to the rear section of the frame. The front section of the frame includes a front crossbeam and two front longitudinal beams, with the front crossbeam connected between the two front longitudinal beams; the rear section of the frame includes a rear crossbeam and two rear longitudinal beams, with the rear crossbeam connected between the two rear longitudinal beams; the connecting assembly includes a first connector and a second connector, the first connector connecting the battery pack mounting bracket to the front crossbeam and / or connecting the battery pack mounting bracket to the rear crossbeam, and the second connector connecting the battery pack mounting bracket to the front longitudinal beam and / or connecting the battery pack mounting bracket to the rear longitudinal beam; The frame assembly also includes a cover plate that covers the top of the battery pack mounting bracket, and the second connector is provided with an upward flange for connecting to the cover plate; The connecting assembly further includes a third connector, which is disposed on the outside of the second connector and connects the second connector and the battery pack mounting bracket; the third connector is provided with a side flange, which is provided outward along the width direction of the vehicle body to enhance the strength of the third connector along the width direction of the vehicle body. The second connecting member includes a left front inner reinforcing plate, a right front inner reinforcing plate, a left rear inner reinforcing plate, and a right rear inner reinforcing plate. The left front inner reinforcing plate is attached to and fixed to the left side of the front longitudinal beam, and the right front inner reinforcing plate is attached to and fixed to the right side of the front longitudinal beam. The left rear inner reinforcing plate is attached to and fixed to the left side of the rear longitudinal beam, and the right rear inner reinforcing plate is attached to and fixed to the right side of the rear longitudinal beam. The third connecting member includes a left front outer reinforcing plate, a right front outer reinforcing plate, a left rear outer reinforcing plate, and a right rear outer reinforcing plate. The left front outer reinforcing plate is attached and fixed to the left front inner reinforcing plate, and is fixedly connected between the front longitudinal beam on the left side and the front end of the battery pack mounting bracket. The right front outer reinforcing plate is attached and fixed to the right front inner reinforcing plate, and is fixedly connected between the front longitudinal beam on the right side and the front end of the battery pack mounting bracket. The left rear outer reinforcing plate is attached and fixed to the left rear inner reinforcing plate, and is fixedly connected between the rear longitudinal beam on the left side and the rear end of the battery pack mounting bracket. The right rear outer reinforcing plate is attached and fixed to the right rear inner reinforcing plate, and is fixedly connected between the rear longitudinal beam on the right side and the rear end of the battery pack mounting bracket.

2. The frame assembly according to claim 1, characterized in that, Along the width direction of the vehicle body, the size of the battery pack mounting bracket is not less than the size of the front section or rear section of the vehicle frame.

3. The frame assembly according to claim 1, characterized in that, The battery pack mounting frame is constructed by intersecting multiple longitudinal beams, multiple transverse beams, and multiple vertical beams to form a space that can accommodate at least one layer of battery packs.

4. The frame assembly according to claim 1, characterized in that, The battery pack mounting frame also includes multiple inclined beams and multiple mounting frame reinforcing plates. The inclined beams are disposed between the intersection points of the two longitudinal beams and the transverse beams. The mounting frame reinforcing plates are disposed at the bottom and / or sides of the battery pack mounting frame.

5. An energy storage structure, characterized in that, The vehicle includes a battery pack and a frame assembly as described in any one of claims 1-4, wherein the battery pack is mounted on the battery pack mounting bracket.

6. The energy storage structure according to claim 5, characterized in that, The battery pack has a notch on at least one side along the vehicle body direction for the arrangement of pipelines on the vehicle.

7. A vehicle, characterized in that, Includes the energy storage structure described in claim 5 or 6.

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