Back type power battery frame and new energy commercial vehicle

Abstract

The utility model relates to a back type power battery frame and a new energy commercial vehicle. A battery pack frame assembly comprises a bottom frame and a supporting frame, the supporting frame is arranged on the bottom frame along the vertical direction to form a multi-layer supporting structure for accommodating a plurality of battery boxes; the battery pack frame assembly is in bolted connection with the frame longitudinal beam through the front connecting plate, the middle connecting plate and the rear connecting plate; the battery pack frame assembly is in bolted connection with the battery box; according to the utility model, the battery box is arranged on the battery pack frame assembly, and the battery pack frame assembly is arranged on the vehicle frame, so that the safety of the vehicle can be improved, and meanwhile, the collision danger caused by side hanging of the battery is avoided; the main part of the battery pack frame assembly is made of magnesium-aluminum alloy, and on the premise that the safety of the whole vehicle is not changed, the performance of the whole vehicle and the hoisting safety are further improved by adopting a material lightweight mode.

Description

Technical Field

[0001] This utility model relates to the field of new energy commercial vehicle component technology, and in particular to a rear-mounted power battery frame and a new energy commercial vehicle. Background Technology

[0002] Power batteries for new energy commercial vehicles have become a key product for new energy vehicles due to their energy saving, environmental protection, and low noise. In order to make vehicles more competitive in the market, lightweighting has become a very important measure. Currently, the rear-mounted power battery brackets that are commonly used in the market are heavy, have poor lifting safety, and the side-mounted battery packs are easily affected by impacts from external objects, which can cause more serious damage to the power batteries. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a rear-mounted power battery frame and a new energy commercial vehicle.

[0004] This utility model is achieved using the following technical solution:

[0005] A rear-mounted power battery frame includes a battery pack frame assembly; the battery pack frame assembly includes a bottom frame and a support frame.

[0006] The support frame is vertically mounted on the bottom frame, forming a multi-layer support structure for accommodating multiple battery boxes.

[0007] Furthermore, the bottom frame includes bottom transverse beams and bottom longitudinal beams; a plurality of bottom longitudinal beams are disposed between the two bottom transverse beams.

[0008] Furthermore, the support frame includes a supporting vertical beam, a supporting longitudinal beam, a frame connecting vertical beam, and a raised transverse beam; several supporting vertical beams are respectively arranged on the outer sides of both ends of the two bottom transverse beams, two frame connecting vertical beams are respectively arranged on the outer sides of the middle of the two bottom transverse beams, and several raised transverse beams are respectively arranged on the inner sides of the supporting vertical beams and the frame connecting vertical beams on the left and right sides along the vertical direction; several supporting longitudinal beams are arranged between the two raised transverse beams of the same height.

[0009] Furthermore, the raised transverse beam includes an inverted U-shaped component and a U-shaped component; a plurality of U-shaped components are provided on the inner side of the inverted U-shaped component.

[0010] Furthermore, the bottom frame and the support frame are made of aluminum-magnesium alloy.

[0011] A new energy commercial vehicle includes a rear-mounted power battery frame as described above, and further includes a frame longitudinal beam, a front connecting plate, a middle connecting plate, and a rear connecting plate; the battery pack frame assembly is bolted to the frame longitudinal beam via the front connecting plate, the middle connecting plate, and the rear connecting plate, and the battery pack frame assembly is bolted to the battery box.

[0012] Furthermore, the front connecting plate and the rear connecting plate have a "C" shaped structure.

[0013] Furthermore, the cross-section of the connecting plate is an "L" shaped structure.

[0014] Furthermore, the front connecting plate, the middle connecting plate, and the rear connecting plate are made of sheet metal bending parts or stamped parts.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] This utility model places the battery box on the battery pack frame assembly, and then places the battery pack frame assembly on the vehicle frame, which can improve vehicle safety and avoid the impact danger caused by side-mounted batteries. The main part of the battery pack frame assembly is made of magnesium-aluminum alloy. While ensuring the overall vehicle safety remains unchanged, the use of lightweight materials further improves the performance of the vehicle and the safety of hoisting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the battery pack frame assembly structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the raised transverse beam structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the middle connecting plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the front connecting plate structure of this utility model.

[0022] In the diagram, 1. Middle connecting plate; 2. Front connecting plate; 3. Battery pack frame assembly; 4. Frame; 5. Rear connecting plate; 6. Battery box; 31. Bottom frame; 32. Support frame; 311. Bottom transverse beam; 312. Bottom longitudinal beam; 321. Supporting vertical beam; 322. Supporting longitudinal beam; 323. Frame connecting vertical beam; 324. Elevating transverse beam. Detailed Implementation

[0023] like Figure 1-5As shown, this utility model provides a rear-mounted power battery frame, including a battery pack frame assembly 3; the battery pack frame assembly 3 includes a bottom frame 31 and a support frame 32.

[0024] The support frame 32 is vertically mounted on the bottom frame 31, forming a multi-layer support structure for accommodating multiple battery boxes 6. The height is determined by the battery boxes 6.

[0025] The bottom frame 31 includes bottom transverse beams 311 and bottom longitudinal beams 312; a number of bottom longitudinal beams 312 are provided between the two bottom transverse beams 311.

[0026] The support frame 32 includes supporting vertical beams 321, supporting longitudinal beams 322, frame connecting vertical beams 323, and raised transverse beams 324. Several supporting vertical beams 321 are respectively provided on the outer sides of both ends of the two bottom transverse beams; two frame connecting vertical beams 323 are respectively provided on the outer sides of the middle of the two bottom transverse beams; several raised transverse beams 324 are respectively provided vertically on the inner sides of the supporting vertical beams 321 and frame connecting vertical beams 323 on the left and right sides; several supporting longitudinal beams 322 are provided between two raised transverse beams 324 of the same height. The fixing method can be welding.

[0027] The raised transverse beam 324 includes an inverted U-shaped component and a U-shaped component; several U-shaped components are provided on the inner side of the inverted U-shaped component.

[0028] The bottom frame 31 and the support frame 32 are made of aluminum-magnesium alloy; the main parts of the battery pack frame assembly 3 are made of aluminum-magnesium alloy. While ensuring the overall safety of the vehicle remains unchanged, the use of lightweight materials further improves the performance of the vehicle and the safety of hoisting, thus meeting customer needs.

[0029] like Figure 1-5 As shown, this utility model also provides a new energy commercial vehicle, including the rear-mounted power battery frame as described above, and further including a frame longitudinal beam, a front connecting plate 2, a middle connecting plate 1, and a rear connecting plate 5; the battery pack frame assembly 3 is bolted to the longitudinal beam of the frame 4 through the front connecting plate 2, the middle connecting plate 1, and the rear connecting plate 5, respectively, and the battery pack frame assembly 3 is bolted to the battery box 6. Bolted connections allow for convenient and quick installation, and simplify the assembly process. The battery box 6 is located inside the battery pack frame assembly 3, and the battery pack frame assembly 3 is positioned on the upper side of the frame 4, that is, behind the cab, which improves vehicle safety and avoids the impact hazard caused by the battery being mounted on the side.

[0030] The front connecting plate 2 and the rear connecting plate 5 on the same frame longitudinal beam are symmetrical parts. The front connecting plate and the rear connecting plate have a "C" shaped structure. The flanges on both sides can effectively prevent the vehicle from tilting forward or backward during emergency braking when the center of gravity of the vehicle is too high due to too much power battery.

[0031] The cross-section of the connecting plate 1 is an "L" shape. The "L" shape saves the most material under the same load conditions, and is also easy to process, meeting the requirements for lightweighting.

[0032] The front connecting plate 2, the middle connecting plate 1, and the rear connecting plate 5 are made of sheet metal bending parts or stamped parts.

[0033] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rear-mounted power battery frame, characterized in that, Includes a battery pack frame assembly; the battery pack frame assembly includes a bottom frame and a support frame; The support frame is vertically mounted on the bottom frame, forming a multi-layer support structure for accommodating multiple battery boxes.

2. The rear-mounted power battery frame as described in claim 1, characterized in that, The support frame includes a bottom frame comprising a bottom transverse beam and a bottom longitudinal beam; a plurality of bottom longitudinal beams are disposed between two bottom transverse beams.

3. The rear-mounted power battery frame as described in claim 2, characterized in that, The support frame includes a supporting vertical beam, a supporting longitudinal beam, a frame connecting vertical beam, and a raised transverse beam; several supporting vertical beams are respectively arranged on the outer sides of both ends of the two bottom transverse beams, and two frame connecting vertical beams are respectively arranged on the outer sides of the middle of the two bottom transverse beams; several raised transverse beams are respectively arranged on the inner sides of the supporting vertical beams and the frame connecting vertical beams on the left and right sides along the vertical direction; several supporting longitudinal beams are arranged between the two raised transverse beams of the same height.

4. The rear-mounted power battery frame as described in claim 3, characterized in that, The raised transverse beam includes an inverted U-shaped component and a U-shaped component; a plurality of U-shaped components are provided on the inner side of the inverted U-shaped component.

5. The rear-mounted power battery frame as described in claim 4, characterized in that, The bottom frame and the support frame are made of aluminum-magnesium alloy.

6. A new energy commercial vehicle, comprising a rear-mounted power battery frame as described in any one of claims 1-5, characterized in that, It also includes a frame longitudinal beam, a front connecting plate, a middle connecting plate, and a rear connecting plate; the battery pack frame assembly is bolted to the frame longitudinal beam through the front connecting plate, the middle connecting plate, and the rear connecting plate, respectively, and the battery pack frame assembly is bolted to the battery box.

7. The new energy commercial vehicle as described in claim 6, characterized in that, The front connecting plate and the rear connecting plate have a "C" shaped structure.

8. The new energy commercial vehicle as described in claim 7, characterized in that, The cross-section of the connecting plate is an "L" shaped structure.

9. The new energy commercial vehicle as described in claim 8, characterized in that, The front connecting plate, the middle connecting plate and the rear connecting plate are made of sheet metal bending parts or stamped parts.

Images