Battery bracket and vehicle

Abstract

The utility model provides a battery bracket and a vehicle, and relates to the technical field of automobile parts. The battery bracket comprises two main supporting frames arranged in the length direction in a spaced mode and an auxiliary frame connected with the main supporting frames, and the main supporting frames and the auxiliary frame jointly define a battery containing space used for containing batteries. The main supporting frame comprises a frame connecting part used for being connected to one side of a frame and a battery supporting part used for being directly connected with and supporting a battery, and the frame connecting part is provided with a frame connecting structure used for being connected with the frame. The vehicle comprises the battery bracket. Different from an existing mode that the battery is supported through a battery frame and the battery frame is supported through a battery bracket connecting device, the two main supporting frames are directly used as main supports of the battery, the battery is supported through the main supporting frames, the strength needed by the auxiliary frame is reduced, and the auxiliary frame only needs to be arranged on the periphery of the battery in a framed mode. Therefore, the connection structure of the battery bracket is simplified, and the weight of the battery bracket is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a battery bracket and vehicle. Background Technology

[0002] In new energy commercial vehicles, placing the battery brackets for power batteries on both sides of the vehicle frame can effectively solve a series of problems that arise when placing the battery brackets on the rear of the cab, such as the high center of gravity of the vehicle limiting the maximum speed and the large volume occupied by the battery limiting the cargo compartment volume.

[0003] As proposed in Chinese Utility Model Patent No. CN217892497U, the vehicle frame assembly, vehicle, and battery swapping station include a vehicle frame, a battery frame (i.e., a battery bracket), and a locking mechanism. Along the length direction (longitudinal) of the vehicle frame, two lateral connecting devices are connected at intervals on the vehicle frame. At this time, on the lateral sides of the vehicle frame, the two lateral connecting devices form two mounting positions for connecting the battery frame. The two lateral connecting devices achieve quick installation and quick separation from the battery frame through the locking mechanism, thereby realizing the rapid battery swapping of the vehicle.

[0004] In the above technical solution, the lateral connecting device connects and supports the battery frame. The battery is supported by the battery frame, which requires the battery frame to have sufficient strength. To this end, the battery frame in the above technical solution is designed with more vertical and diagonal bracing structures, and the main body of the frame also needs to use high-specification profiles. This can easily make the battery frame too heavy, which is not conducive to achieving the lightweighting of the whole vehicle. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a battery bracket that solves the technical problem that existing battery frames are too heavy and detrimental to vehicle lightweighting. Another purpose of this invention is to provide a vehicle that solves the same technical problem.

[0006] To achieve the above objectives, the technical solution of the battery holder of this utility model is as follows:

[0007] A battery tray includes two main support frames spaced apart along the length of the battery tray and an auxiliary frame connected to the main support frames. The main support frames and the auxiliary frame together enclose a battery placement space for placing batteries. The main support frames include a frame connection part for connecting to one side of the vehicle frame and a battery support part for directly connecting to and supporting the battery. The frame connection part has a frame connection structure for connecting to the vehicle frame.

[0008] The battery bracket of this utility model is an invention of element modification, and its beneficial effects are as follows: Unlike the prior art in which the battery is supported by a battery frame and the battery frame is supported by a battery bracket connecting device, this utility model directly uses two main support frames located on one side of the vehicle frame as the main support for the battery. The auxiliary frame is not used as the main load-bearing component, which can reduce the strength required for the auxiliary frame. The auxiliary frame only needs to frame the outside of the battery, which helps to simplify the connection structure of the battery bracket and thus reduce the weight of the battery bracket, thereby solving the technical problem that the existing battery frame is too heavy and is not conducive to the lightweighting of the whole vehicle.

[0009] Preferably, the frame connection structure includes a plurality of through holes through which connecting bolts for connecting the frame to the frame connection part pass, and each through hole is anti-rotationally fitted with the connecting bolts.

[0010] Preferably, the frame connection structure is further provided with a cover plate for sealing each through hole after the connecting bolts are inserted.

[0011] Preferably, the battery support is located at the center of the height direction of the frame connection.

[0012] Preferably, the auxiliary frame includes a top frame, a middle frame, a bottom frame, and a side frame. The side frame is located on the side of the battery support that is away from the frame connection, and the top frame, middle frame, bottom frame, and side frame are all connected to the main support frame.

[0013] Preferably, the intermediate frame includes a vertically extending auxiliary connector, which has an auxiliary connection structure for direct connection to one side of the vehicle frame.

[0014] Preferably, the main support frame is an integral casting structure.

[0015] Preferably, the end of the main support frame that is away from the auxiliary frame is also connected to an equipment mounting frame for installing supporting electrical equipment.

[0016] To achieve the above objectives, the technical solution of this utility model for the vehicle is as follows:

[0017] A vehicle includes a frame, with battery trays connected to both sides of the frame. A battery is placed on the battery tray. The battery tray includes two main support frames spaced apart along the length of the battery tray and an auxiliary frame connected to the main support frames. The main support frames and the auxiliary frames together enclose a battery placement space for placing the battery. The main support frames include a frame connecting part for connecting to one side of the frame and a battery support part for directly connecting to and supporting the battery. The frame connecting part has a frame connecting structure for connecting to the frame.

[0018] The vehicle of this utility model is an improved invention, and its beneficial effects are as follows: by improving the battery bracket, the overall stress of the existing battery frame is changed to be concentrated on the main support frame that is connected to both the vehicle frame and the battery. The main support frame, as part of the battery bracket, directly connects the vehicle frame and the battery and is used to support the battery, thereby reducing the strength required by the auxiliary frame. The auxiliary frame only needs to be placed around the battery, which helps to simplify the connection structure of the battery bracket and thus reduce the weight of the battery bracket, thereby solving the technical problem that the existing battery frame is too heavy and not conducive to the lightweighting of the whole vehicle.

[0019] Preferably, the frame connection structure includes a plurality of through holes through which connecting bolts for connecting the frame to the frame connection part pass, and each through hole is anti-rotationally fitted with the connecting bolts.

[0020] Preferably, the frame connection structure is further provided with a cover plate for sealing each through hole after the connecting bolts are inserted.

[0021] Preferably, the battery support is located at the center of the height direction of the frame connection.

[0022] Preferably, the auxiliary frame includes a top frame, a middle frame, a bottom frame, and a side frame. The side frame is located on the side of the battery support that is away from the frame connection, and the top frame, middle frame, bottom frame, and side frame are all connected to the main support frame.

[0023] Preferably, the intermediate frame includes a vertically extending auxiliary connector, which has an auxiliary connection structure for direct connection to one side of the vehicle frame.

[0024] Preferably, the main support frame is an integral casting structure.

[0025] Preferably, the end of the main support frame that is away from the auxiliary frame is also connected to an equipment mounting frame for installing supporting electrical equipment.

[0026] Preferably, a plate-shaped connecting beam connects the main support frame of the battery trays on both sides. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall connection structure between the battery bracket embodiment and the vehicle frame in this utility model;

[0028] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the battery holder in this utility model;

[0029] Figure 3 This is a schematic diagram of the overall structure of an embodiment of the main support frame in this utility model;

[0030] Figure 4This is a schematic diagram of the connection structure between the main support frame, the intermediate frame and the side frame in an embodiment of this utility model;

[0031] Figure 5 This is a schematic diagram of the overall structure of an embodiment of the bottom frame in this utility model;

[0032] Figure 6 This is a schematic diagram of the overall structure of an embodiment of the top frame in this utility model;

[0033] Figure 7 This is a schematic diagram of the overall structure of an embodiment of the intermediate frame in this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Frame; 2. Battery bracket; 2-1. Middle frame; 2-2. Top frame; 2-3. Bottom frame; 2-4. Side frame; 2-5. Auxiliary connectors; 2-6. Anti-collision beam; 2-7. Support column; 3. Main support frame; 3-1. Frame connection part; 3-2. Battery support part; 3-3. Frame connection structure; 4. Equipment mounting frame; 5. Connecting beam. Detailed Implementation

[0036] To address the technical problem that the existing battery frame is too heavy and hinders the lightweighting of the vehicle, the basic technical concept of this utility model is to concentrate the overall stress of the existing battery frame on the main support frame that is connected to both the vehicle frame and the battery, thereby simplifying the structure of the auxiliary frame and reducing the weight of the battery bracket.

[0037] Based on the above concept, the present invention will be further described below with reference to different embodiments.

[0038] Specific embodiments of the battery holder in this utility model:

[0039] As a basic embodiment, a battery holder 2, such as Figure 1 and Figure 2 As shown, the device includes two main support frames 3 spaced apart along the length of the battery holder 2. Auxiliary frames are connected to the two main support frames 3, and the main support frames 3 and auxiliary frames together form a battery placement space for placing batteries (not shown in the figure). Figure 1 , Figure 2 , Figure 3As shown, in this embodiment, for ease of installation and disassembly, the main support frame 3 and the auxiliary frame are connected by bolts. The main support frame 3 includes a frame connecting part 3-1 and a battery support part 3-2. The frame connecting part 3-1 extends generally vertically, and the battery support part 3-2 extends generally horizontally, meaning the frame connecting part 3-1 and the battery support part 3-2 are vertically connected. The frame connecting part 3-1 has a frame connecting structure 3-3 for connecting to the frame 1. For example, the frame connecting structure 3-3 can be a through hole located at the top of the frame connecting part 3-1. The frame connecting structure 3-3 is connected to the frame 1 by bolts, which pass through the through holes on the frame connecting structure 3-3 and the frame 1, and are then tightened with nuts. Specifically, during assembly, the battery can be installed in the battery holder 2 first, and then the battery holder 2 can be connected to the frame 1 via the frame connecting structure 3-3. Alternatively, the battery holder 2 can be connected to the frame 1 via the frame connecting structure 3-3 first, and then the battery can be installed in the battery holder 2.

[0040] The battery support 3-2 has several horizontally spaced mounting holes for direct connection to the battery and to support it. Bolts or rivets can be used for this connection. Additionally, the battery support 3-2 has several oblong holes (weight-reduction holes) located between adjacent mounting holes to reduce weight. Connection holes for connecting the auxiliary frame are provided at both ends of the frame connection 3-1, on the upper and lower sides of the frame connection 3-1, on the front and rear sides of the frame connection 3-1, at the end of the battery support 3-2 away from the frame connection 3-1, and on the front and rear sides of the battery support 3-2. The auxiliary frame is composed of multiple small frames bolted together. Each small frame is welded from profiles and has holes that match the connection holes on the main support frame 3 for bolt connection. After the battery is placed in the battery holder 2, the main support frame 3 can support and fix the battery, while the auxiliary frame, fitted around the battery, provides protection.

[0041] Compared with the prior art, the battery bracket 2 of this utility model includes a detachably connected main support frame 3 and an auxiliary frame, which can be easily installed and disassembled. The overall force of the battery bracket 2 is changed to the main support frame 3 as the main support of the battery, and the auxiliary frame is not used as the main force-bearing component. The parts used for battery support are strengthened, and the parts in non-load-bearing positions are simplified. The parts in non-load-bearing positions only need to play a basic protective role, thereby reducing the cost while reducing the weight.

[0042] It should be noted that in other embodiments, the frame connection portion 3-1 of the main support frame 3 may not be strictly vertically extended. For example, in some embodiments, the frame connection portion 3-1, except for the portion connected to the frame 1, may have a certain angle of inclination. The shape of the portion of the frame connection portion 3-1 connected to the frame 1 may be U-shaped, L-shaped, or other shapes. Alternatively, the frame connection portion 3-1 may be inclined at a certain angle in the vertical plane along the front-rear direction of the frame 1. The shape of the frame connection portion 3-1 may be L-shaped or other shapes. For example, when the frame connection portion 3-1 is L-shaped, one side of the L-shape is connected to one side of the frame 1, and the other side is placed at the bottom of the frame 1. In short, as long as the frame connection portion 3-1 is connected to the frame 1 and the battery support portion 3-2, it is acceptable. Of course, the connection method between the frame connection portion 3-1 and the frame 1, and between the frame connection portion 3-1 and the battery support portion 3-2, may also be welding or other connection methods.

[0043] In addition, in other embodiments, the battery support portion 3-2 of the main support frame 3 may not be strictly horizontally extended. The battery support portion 3-2 can be tilted at a certain angle in the horizontal plane along the front-rear direction of the frame 1. The shape of the battery support portion 3-2 can be U-shaped, L-shaped, wavy, or other shapes. For example, when the shape of the battery support portion 3-2 is L-shaped, one side of the L-shape can be connected to the battery, and the other side can be connected to the profile of the auxiliary frame. In short, as long as the battery can be directly connected to the battery support portion 3-2, it is acceptable. Of course, the battery can also be connected to the battery support portion 3-2 by using bracket riveting, using locking structure for fixed connection, or other connection methods. The auxiliary frame can be an integral welded frame or, like the battery frame in the cited patent CN217892497U, it can be made of multiple side frames welded together, leaving only one side detachable for frame opening limitation, so as to realize quick battery installation and removal.

[0044] Based on the above embodiments, as a preferred embodiment, when the frame connection part 3-1 is bolted to the frame 1, and the battery is first installed in the battery bracket 2 and then the battery bracket 2 is connected to the frame 1, since the frame connection structure 3-3 includes several through holes for the connecting bolts that connect the frame 1 and the frame connection part 3-1 to pass through, if the battery is placed on the battery bracket 2 first, the battery may obstruct the normal installation of the subsequent connecting bolts and nuts. To facilitate the connection between the frame connection part 3-1 and the frame 1, such as... Figure 2As shown, in this embodiment, pre-installed connecting bolts are used. The connecting bolts are pre-installed in the through holes of the frame connecting part 3-1, with the bolts facing towards the frame 1. That is, the connecting bolts first pass through the frame connecting part 3-1 and then through the connecting nut on the frame 1, thus eliminating spatial limitations and facilitating nut connection. When connecting the battery bracket 2 to the frame 1, further to prevent the connecting bolts from rotating with the nut when tightened, an anti-rotation structure that mates with the connecting bolts is provided on the frame connecting part 3-1. Specifically, the anti-rotation structure engages with the bolt head. Generally, the connecting bolts are hexagonal head bolts, and the anti-rotation structure is a hexagonal prism-shaped groove on the frame connecting part 3-1. In other embodiments, the connecting bolts can also be square bolts, T-bolts, or other types, and the anti-rotation structure is an anti-rotation fit structure that matches the shape of the bolt head.

[0045] Based on the above preferred embodiment, as a more preferred embodiment, since the connecting bolt needs to be aligned and passed through the through hole on the frame 1 before connecting the nut, in order to prevent the connecting bolt from falling off during the process of aligning or passing through the through hole on the frame 1, the frame connecting structure 3-3 is also provided with a cover plate (not shown in the figure) for sealing each through hole after the connecting bolt is inserted. By pressing the cover plate on the surface of the bolt head, the connecting bolt can be prevented from falling off.

[0046] Based on the above embodiments, as a preferred embodiment, such as... Figure 1 , Figure 2 , Figure 3 As shown, to facilitate the installation of two batteries placed vertically within a battery holder 2, in this embodiment, the battery support 3-2 is located at the center of the height direction of the frame connection 3-1, and the mounting holes on the battery support 3-2 are used to connect the upper and lower batteries. Specifically, installation can be done on a production line or offline. When using online installation, the lower battery is first placed on the bottom frame of the auxiliary frame by hoisting, and then the main support frame 3 is connected to the lower battery, the bottom frame, and the side frame to complete the installation and fixation of the lower battery. Next, the upper battery is placed by hoisting and bolted to the main support frame 3. Finally, the top frame is connected to the main support frame 3 and the side frame to complete the installation of the two batteries placed vertically on the production line. In other embodiments, the position of the battery support 3-2 can be adjusted according to the shape of the installed battery. For example, when the installed battery is a single unit, the battery support 3-2 can be located at the bottom or top of the frame connection 3-1 in the height direction, i.e., directly connected to the bottom or top of the entire battery unit.

[0047] Based on any of the above embodiments, as a preferred embodiment, to facilitate battery installation and removal as well as the processing of the auxiliary frame, such as... Figure 1 , Figure 2 , Figures 4-7 As shown, the auxiliary frame in this embodiment includes a top frame 2-2, a middle frame 2-1, a bottom frame 2-3, and a side frame 2-4. The side frame 2-4 is located on the side of the battery support 3-2 opposite to the frame connection 3-1, and the top frame 2-2, middle frame 2-1, bottom frame 2-3, and side frame 2-4 are all connected to the main support frame 3. This method allows each part to be assembled as a separate modular frame into a whole, which is convenient and efficient. Specifically, in this embodiment, the top frame 2-2, the middle frame 2-1, the bottom frame 2-3, and the side frame 2-4 are first welded together, and then connected by bolts to form an auxiliary frame. Each of the top frame 2-2, bottom frame 2-3, and middle frame 2-1 includes two support beams arranged along the length of the frame 1, and multiple transverse reinforcing beams connect the two support beams. One of the support beams of the top frame 2-2, on the side facing away from the battery, is bolted to the top of the frame connection part 3-1 of the main support frame 3. The support beam of the bottom frame 2-3 on the side near the frame connection part 3-1 is connected to the transverse reinforcing beams... The intermediate frame 2-1 is connected by a diagonal bracing beam, and the side of the supporting beam facing away from the battery has a bracket for easy bolt connection to the bottom of the frame connection part 3-1 of the main support frame 3. The bracket has through holes for bolt connection. The ends of the two supporting beams of the intermediate frame 2-1 are provided with corner brackets for bolt connection to the battery support part 3-2 of the main support frame 3. The side frame 2-4 includes supporting columns 2-7 for connecting to the side of the battery support part 3-2 facing away from the frame connection part 3-1. At least two supporting columns 2-7 are provided, and a collision protection beam 2-6 parallel to the supporting beam is provided between each supporting column 2-7. The collision protection beam 2-6 is made of ultra-high strength steel to enhance the impact resistance of the side of the battery bracket 2. In other embodiments, the auxiliary frame can be an integral welded frame or, like the battery frame in the cited patent CN217892497U, it can be made of multiple side frames welded together, with only one side left detachable for frame opening limitation, so as to realize quick battery installation and removal. Preferably, the auxiliary frame is a split type, that is, it is composed of multiple side frames that can be detachably connected.

[0048] Based on the above embodiments, as a preferred embodiment, in order to further strengthen the connection strength between the battery bracket 2 and the vehicle frame 1, such as... Figure 1 , Figure 2 , Figure 4 , Figure 7As shown in this embodiment, a vertically extending auxiliary connector 2-5 is provided in the middle of the intermediate frame 2-1. The auxiliary connector 2-5 has an auxiliary connection structure for direct connection with one side of the frame 1. The auxiliary connection structure includes holes that match the through holes on the top frame 2-2, bottom frame 2-3, and frame 1. The top hole of the auxiliary connector 2-5 is bolted to the support beam of the top frame 2-2, the bottom hole of the auxiliary connector 2-5 is bolted to the support beam of the bottom frame 2-3, and the middle hole of the auxiliary connector 2-5 is bolted to the through hole on the frame 1. The cross-section of the auxiliary connector 2-5 is U-shaped, i.e., channel steel, which can further reduce the weight of the battery bracket 2. In other embodiments, the auxiliary connector 2-5 can be riveted or welded to the top frame 2-2, bottom frame 2-3, and frame 1. The cross-section of the auxiliary connector 2-5 can be rectangular, annular, or other shapes, and multiple auxiliary connectors 2-5 can be provided.

[0049] Based on any of the above embodiments, as a preferred embodiment, in order to enhance the strength of the main support frame 3, the main support frame 3 in this embodiment is a one-piece casting structure. However, it should be noted that in other embodiments, the frame connection part 3-1 and the battery support part 3-2 of the main support frame 3 may also be connected by welding or bolts, as long as the strength of the main support frame 3 is guaranteed.

[0050] Based on any of the above embodiments, as a preferred embodiment, to increase the practicality of the battery holder 2, such as... Figure 1 , Figure 2 , Figure 4 As shown in this embodiment, the end of the main support frame 3 facing away from the auxiliary frame is also connected to an equipment mounting bracket 4 for installing supporting electrical equipment. The supporting electrical equipment may be a junction box, controller, etc.

[0051] Specific embodiments of the vehicle in this utility model:

[0052] A type of vehicle, such as Figure 1 , Figure 2 As shown, the vehicle includes a frame 1, and battery brackets 2 are connected to the two lateral sides of the frame 1 respectively. The battery brackets 2 are used to install batteries. The battery brackets 2 are the same as those described in the above-mentioned battery bracket embodiment, and will not be described in detail here.

[0053] Based on the above embodiments, as a preferred embodiment, in order to enhance the connection strength between the battery bracket 2 and the vehicle frame 1, such as... Figure 1 , Figure 2 As shown, in this embodiment, a connecting beam 5 connects the main support frame 3 of the battery brackets 2 on both sides. The connecting beam 5 is a plate-like structure. The plate-like structure can be directly drilled and bolted through, which is convenient and efficient, and also ensures that the connecting beam 5 has strong torsional strength.

Claims

1. A battery holder, characterized in that, It includes two main support frames spaced apart along the length of the battery tray and an auxiliary frame connected to the main support frames. The main support frames and the auxiliary frame together enclose a battery placement space for placing the battery. The main support frame includes a frame connection part for connecting to one side of the vehicle frame and a battery support part for directly connecting to and supporting the battery. The frame connection part has a frame connection structure for connecting to the vehicle frame.

2. The battery holder according to claim 1, characterized in that, The frame connection structure includes several through holes through which connecting bolts for connecting the frame to the frame connection part pass, and each through hole is anti-rotationally fitted with the connecting bolts.

3. The battery holder according to claim 2, characterized in that, The frame connection structure is also provided with a cover plate for sealing each through hole after the connecting bolts are inserted.

4. The battery holder according to claim 1, characterized in that, The battery support is located at the center of the height direction of the frame connection.

5. The battery holder according to any one of claims 1-4, characterized in that, The auxiliary frame includes a top frame, a middle frame, a bottom frame, and a side frame. The side frame is located on the side of the battery support that is away from the frame connection. The top frame, middle frame, bottom frame, and side frame are all connected to the main support frame.

6. The battery holder according to claim 5, characterized in that, The intermediate frame includes a vertically extending auxiliary connector, which has an auxiliary connection structure for direct connection to one side of the frame.

7. The battery holder according to any one of claims 1-4, characterized in that, The main support frame is a one-piece casting structure.

8. The battery holder according to any one of claims 1-4, characterized in that, The end of the main support frame that is away from the auxiliary frame is also connected to an equipment mounting frame for installing supporting electrical equipment.

9. A vehicle, comprising a frame, wherein battery brackets are respectively connected to both lateral sides of the frame, and batteries are placed on the battery brackets, characterized in that, The battery holder is the battery holder as described in any one of claims 1-8.

10. The vehicle according to claim 9, characterized in that, A plate-like connecting beam connects the main support frame of the battery brackets on both sides.

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