Battery pack interface frame of heavy truck battery swap station

Abstract

This application relates to the field of battery box technology for heavy-duty truck battery swapping stations. A battery pack interface frame for a heavy-duty truck battery swapping station includes a frame body, which comprises an annular frame and protective plates on its upper and lower surfaces. The frame body is equipped with several hook connection frames, each including reinforcing plates located on the upper and lower surfaces of the frame. Lifting hooks are mounted on the reinforcing plates and are driven by a drive mechanism at the top of the frame body. This drive mechanism can simultaneously drive two sets of lifting hooks on one side to rotate. Each lifting hook has an L-shaped structure, including a shaft rotatably connected to the frame body and buckles perpendicular to the shaft. Guide posts are located on the outer side of the lifting hooks. Battery box positioning posts are located at the bottom of the frame body and are used to abut against the top of the battery box. The frame body and battery box are connected by a clamping rod, which enhances the connection stability and prevents damage caused by secondary collisions to the battery box during lifting.

Description

Technical Field

[0001] This application relates to the field of battery box technology for heavy-duty truck battery swapping stations, and in particular to an interface framework for a battery pack for heavy-duty truck battery swapping stations. Background Technology

[0002] With the maturity of technology and the increasing emphasis on environmental protection by the nation and society, electric vehicle technology has developed rapidly in recent years. Correspondingly, more and more electric trucks have been put into use in production sites such as factories and docks. Unlike ordinary passenger cars, which can be charged at night using charging stations to meet usage needs, trucks, as important production and transportation facilities, need to be kept in use for extended periods. When their power is depleted, the preferred option is to quickly replace the battery pack so that the truck can be quickly put back into production. Therefore, when industrial and mining enterprises purchase electric trucks as transportation facilities, they generally need to equip them with dedicated charging and battery swapping stations for quick battery replacement and centralized charging.

[0003] Chinese Patent Publication No. CN211764962U discloses a heavy-duty truck with battery swapping and charging functions. The truck structure with battery swapping function is described, in which a detachable battery box is installed and fixed at the rear of the truck cab and the front of the cargo platform. Currently, most electric trucks adopt a similar layout design. After the truck bed, cargo box and other components are installed on the cargo platform, the battery replacement can generally only be carried out by lifting the battery from above and then removing it horizontally.

[0004] In the existing technology, during the lifting and lowering of heavy truck battery boxes, after the bottom of the battery box is supported, if the lifting hook is not unlocked, there is a gap between the battery box and the frame body, which can easily cause secondary collisions and damage to the battery box or the frame body. Therefore, there is an urgent need for an interface frame that can fit tightly with the top of the battery box. Utility Model Content

[0005] To overcome the problems existing in the prior art, this application provides a battery pack interface framework for heavy-duty truck battery swapping stations.

[0006] The technical solution adopted in this application for a battery pack interface framework for a heavy-duty truck battery swapping station is as follows: A battery pack interface frame for a heavy-duty truck battery swapping station includes a frame body, which comprises an annular frame and protective plates on the upper and lower surfaces of the frame. The frame is equipped with several hook connection frames, each including reinforcing plates located on the upper and lower surfaces of the frame. Each reinforcing plate is also equipped with a lifting hook. The lifting hook is driven by a drive mechanism at the top of the frame, which can simultaneously drive two sets of lifting hooks on one side to rotate. The lifting hook adopts an L-shaped structure, including a shaft rotatably connected to the frame body and buckles perpendicular to the shaft. Guide posts are located on the outer side of the lifting hooks. Battery box positioning posts are located at the bottom of the frame body and are used to abut against the top of the battery box.

[0007] By adopting the above technical solution, the hook connecting frame installed on the frame body is used to connect the lifting device at its top. The hook connecting frame uses reinforcing plates located at both the upper and lower ends of the frame body to stably connect the lifting device to the frame body. Protective plates are installed on the upper and lower sides of the frame body to protect these surfaces. The battery box is generally a cuboid with a fence around its top, with slots on the fence to accommodate the lifting device's hook. The lifting device's hook, installed on the reinforcing plate, rotates under the drive mechanism. The rotating shaft drives the horizontal buckle connected at the bottom to rotate, thereby locking and unlocking with the fence with its hook on top of the battery box. Furthermore, guide posts are installed at the bottom of the frame body to guide the battery's position when the frame body contacts the battery box, ensuring precise gripping of the battery box. A battery box positioning post at the bottom of the frame body abuts against the top of the battery box, preventing the battery box from falling due to vertical movement during hoisting.

[0008] Preferably, the drive mechanism includes a mounting base and a cylinder and a telescopic rod located on the mounting base, wherein the bottom of the mounting base is rotatably connected to the frame, and the telescopic rod is rotatably connected to the top of the lifting hook.

[0009] Preferably, the shaft of the lifting hook penetrates through the reinforcing plate, and a first drive disc is installed on the top of the lifting hook. Bearings that are rotatably connected to the shaft are installed on both the upper and lower reinforcing plates of the reinforcing plate.

[0010] Preferably, the first drive disc has a first protrusion and a second protrusion extending out of the disc body on both sides, and the free end of the telescopic rod is rotatably connected to the first protrusion. A connecting rod is rotatably connected to the second protrusion of the first drive disc, wherein the connecting rod is rotatably connected to a third protrusion on the second drive disc located on the same side of the drive mechanism.

[0011] By adopting the above technical solution, the drive mechanism uses a cylinder to drive a telescopic rod, which in turn drives a first protrusion at the end of the first drive disc on the top of the spreader hook, thereby rotating the first drive disc and causing the spreader hook corresponding to the first drive disc to rotate. Simultaneously, a second protrusion at the other end of the first drive disc moves a connecting rod, which in turn rotates a third protrusion on the second drive disc, causing the second drive disc to rotate and thus rotating the spreader hook connected to it. In summary, the drive mechanism can simultaneously drive the spreader hooks located on both sides of it to rotate.

[0012] Preferably, a limiting post is installed on the reinforcing plate corresponding to the first drive disk, wherein the limiting post is installed on the side of the second drive disk away from the drive mechanism, and the limiting post is located between the first protrusion and the second protrusion of the first drive disk.

[0013] Preferably, the third protrusion of the second drive plate corresponds to the limiting plate provided on its side, wherein the limiting plate has an arc adapted to the second drive plate on a rectangular right-angled side, and limiting rods are installed on both sides of the arc of the limiting plate.

[0014] By adopting the above technical solution, the limiting post installed on the side of the first drive disc can limit the rotational position of the first and second protrusions on the first drive disc, avoiding malfunctions caused by misalignment and collision between the telescopic rod and the connecting rod. The limiting plate set on the second drive disc restricts its rotational position, ensuring its reciprocating motion and regularly locking and unlocking the lifting hook.

[0015] Preferably, both the first drive disc and the second drive disc are equipped with a limiting stop bar located on the protruding side.

[0016] By adopting the above technical solution and setting a limit stop, the limit stop can be made to abut against the limit post or limit plate, reducing the wear of the first drive plate and the second drive plate themselves. The limit stop is set to a detachable structure, which can be disassembled and replaced after long-term use, reducing the maintenance cost of the entire frame body.

[0017] Preferably, a number of abutting rods are also installed at the bottom edge of the frame body, including a rod body installed in the bottom groove and abutting head slidably fitted on the rod body, wherein a spring is fitted on the rod body and the two ends of the spring are respectively connected to the abutting head and the bottom of the groove.

[0018] Preferably, the clamping head includes a cylindrical end and a hemispherical buffer head installed at the cylindrical end.

[0019] By adopting the above technical solution, the clamping rod set at the bottom of the frame body can squeeze the clamping rod when the frame body comes into contact with the battery box. When the clamping head is squeezed, the hemispherical buffer head at the end of the clamping head buffers the pressure. At the same time, the clamping head squeezes the spring. When the frame body and the battery box are connected, the clamping rod can enhance the connection stability between the two.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. This application guides the position of the battery by installing guide posts at the bottom of the frame body when the frame body contacts the battery box, ensuring that the frame body accurately grips the battery box. The battery box positioning post set at the bottom of the frame body can abut against the top of the battery box to avoid damage caused by secondary collisions of the battery box during hoisting. 2. This application uses a drive mechanism to simultaneously drive the spreader claws located on both sides to rotate, thereby achieving integrated control of multiple sets of spreader claws, simplifying the overall control structure of the interface framework, and optimizing the overall space. 3. This application uses a clamping rod provided at the bottom of the frame body to compress the clamping rod when the frame body comes into contact with the battery box. When the clamping head is compressed, the hemispherical buffer head at the end provides cushioning. At the same time, the clamping head compresses the spring. When the frame body and the battery box are connected, the clamping rod can enhance the connection stability between the two. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the battery pack interface frame for a heavy-duty truck battery swapping station. Figure 2 This is a schematic diagram of a heavy-duty truck battery pack interface frame with the top protective plate removed. Figure 3 This is a schematic diagram of the bottom structure of a battery pack interface frame for a heavy-duty truck battery swapping station; Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0022] Explanation of reference numerals in the attached drawings: 1. Frame body; 11. Frame body; 111. Reinforcing plate; 12. Protective plate; 2. Lifting hook; 21. Shaft body; 22. Buckle body; 23. First drive disc; 231. First protrusion; 232. Second protrusion; 233. Limiting post; 24. Second drive disc; 241. Third protrusion; 242. Limiting plate; 243. Limiting rod; 25. Limiting stop bar; 3. Drive mechanism; 31. Mounting base; 32. Cylinder; 33. Telescopic rod; 4. Guide post; 5. Battery box positioning post; 6. Clamping rod; 61. Rod body; 62. Clamping head; 621. Cylindrical end; 622. Hemispherical buffer head. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses a battery pack interface framework for heavy-duty truck battery swapping stations.

[0025] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A battery pack interface frame for a heavy-duty truck battery swapping station includes a frame body 1, which includes an annular frame 11 and protective plates 12 on the upper and lower surfaces of the frame 11. The frame 11 is provided with several hook connection frames, each including reinforcing plates 111 located above and below the frame 11. Each reinforcing plate 111 is also equipped with a lifting hook 2, which is driven by a drive mechanism 3 at the top of the frame 11. The drive mechanism 3 can simultaneously drive two sets of lifting hooks 2 on one side to rotate. The lifting hook 2 has an L-shaped structure, including a shaft 21 rotatably connected to the frame body 1 and buckles 22 perpendicularly distributed to the shaft 21. Guide posts 4 are all located on the outer side of the lifting hook 2. Battery box positioning posts 5 are located at the bottom of the frame body 1 and are used to abut against the top of the battery box. The hook connecting frame installed on the frame body 11 in the frame body 1 is used to connect the lifting device at its top. The hook connecting frame uses reinforcing plates 111 at the upper and lower ends of the frame body 11 to stably connect the lifting device to the frame body 1. Protective plates 12 are set on the upper and lower sides of the frame body 11 to protect the upper and lower sides of the frame body 11. The battery box is generally a cuboid with a fence around the top, and the fence has a buckle groove that can be adapted to the hook 2 of the lifting device. The hook 2 of the lifting device installed on the reinforcing plate 111 rotates under the drive of the drive mechanism 3. The rotation of the rotating shaft drives the horizontal buckle 22 connected at the bottom to rotate, thereby locking and unlocking with the fence with buckle grass on the top of the battery box. In addition, the guide post 4 is installed at the bottom of the frame body 1 to guide the position of the battery when the frame body 1 contacts the battery box, ensuring that the frame body 1 accurately grips the battery box. The battery box positioning post set at the bottom of the frame body 1 can abut against the top of the battery box to avoid the risk of the battery box falling due to vertical movement during the hoisting process.

[0026] Reference Figure 1 , Figure 2 and Figure 3The drive mechanism 3 includes a mounting base 31, a cylinder 32 and a telescopic rod 33 located on the mounting base 31. The bottom of the mounting base 31 is rotatably connected to the frame 11, and the telescopic rod 33 is rotatably connected to the top of the lifting hook 2. The shaft 21 of the lifting hook 2 passes through the reinforcing plate 111, and a first drive disc 23 is mounted on the top of the lifting hook 2. Bearings rotatably connected to the shaft 21 are mounted on both the upper and lower surfaces of the reinforcing plate 111. The first drive disc 23 has a first protrusion 231 and a second protrusion 232 extending out of the disc body on both sides. The free end of the telescopic rod 33 is rotatably connected to the first protrusion 231. A connecting rod is rotatably connected to the second protrusion 232 of the first drive disc 23, and the connecting rod is rotatably connected to a third protrusion 241 on the second drive disc 24 located on the same side of the drive mechanism 3. The drive mechanism 3 drives the telescopic rod 33 via the cylinder 32, which in turn drives the first protrusion 231 at the end of the first drive disk 23 on the top of the lifting claw 2, thereby rotating the first drive disk 23 and thus rotating the lifting claw 2 corresponding to the first drive disk 23. Simultaneously, the second protrusion 232 at the other end of the first drive disk 23 drives the connecting rod to move. The connecting rod then drives the third protrusion 241 on the second drive disk 24 to rotate, thereby rotating the second drive disk 24 and causing the lifting claw 2 connected to the second drive disk 24 to rotate. In summary, the drive mechanism 3 can simultaneously drive the lifting claws 2 located on both sides of it to rotate.

[0027] Reference Figure 1 , Figure 2 and Figure 3 Limiting posts 233 are installed on the reinforcing plate 111 corresponding to the first drive disk 23. These limiting posts 233 are installed on the side of the second drive disk 24 away from the drive mechanism 3, and are positioned between the first protrusion 231 and the second protrusion 232 of the first drive disk 23. A limiting plate 242 is provided on the side of the third protrusion 241 of the second drive disk 24. The limiting plate 242 has a rectangular right-angled side with an arc adapted to the second drive disk 24, and limiting rods 243 are installed on both sides of the arc. The limiting posts 233 installed on the side of the first drive disk 23 limit the rotational position of the first protrusion 231 and the second protrusion 232 on the first drive disk 23, preventing malfunctions caused by misalignment and collision between the telescopic rod 33 and the connecting rod. The limiting plate 242 on the second drive disk 24 restricts its rotational position, ensuring reciprocating motion and regularly locking and unlocking the lifting hook 2.

[0028] Reference Figure 1 , Figure 2 and Figure 3Both the first drive disc 23 and the second drive disc 24 have a limiting strip 25 installed on the top of the protrusion. By setting the limiting strip 25, the limiting strip 25 can abut against the limiting post 233 or the limiting plate 242, reducing the wear of the first drive disc 23 and the second drive disc 24 themselves. The limiting strip 25 is designed to be detachable, so it can be disassembled and replaced after long-term use, reducing the maintenance cost of the entire frame body 1.

[0029] Reference Figure 3 Several clamping rods 6 are also installed at the bottom edge of the frame body 1, including rods 61 installed in the bottom groove and clamping heads 62 slidably fitted on the rods 61. A spring is fitted on the rod 61, with both ends of the spring connected to the clamping head 62 and the bottom of the groove, respectively. The clamping head 62 includes a cylindrical end 621 and a hemispherical buffer head 622 installed at the cylindrical end 621. The clamping rods 6 at the bottom of the frame body 1 can compress the clamping rods 6 when the frame body 1 contacts the battery box. When the clamping head 62 is compressed, the hemispherical buffer head at its end provides cushioning, and the clamping head 62 compresses the spring. Therefore, the clamping rods 6 enhance the connection stability between the frame body 1 and the battery box.

[0030] Working Principle: During use, the frame body 1 descends to the top of the battery box under the action of the lifting device and contacts the battery box. The guide posts 4 at the bottom of the frame body 1 position the connection point of the battery box around the perimeter. The battery box positioning posts 5 position and abut against the top of the center of the battery box enclosure from the middle. The clamping rods 6 around the perimeter abut against the top of the battery box enclosure. At this time, the drive mechanism 3 is activated. The drive mechanism 3 drives the telescopic rod 33 through the cylinder 32, which drives the first protrusion 231 at the end of the first drive disk 23 at the top of the lifting device claw 2, thereby rotating the first drive disk 23. This causes the lifting device claw 2 corresponding to the first drive disk 23 to rotate. At the same time, the second protrusion 232 at the other end of the first drive disk 23 can drive the connecting rod to move. The connecting rod drives the third protrusion 241 on the second drive disk 24 to rotate, thereby rotating the second drive disk 24. The lifting device claw 2 connected to the second drive disk 24 rotates. Simultaneously, the lifting device claws 2 located on both sides of the second drive disk 24 rotate. The entire frame body 1 drives the four lifting device claws 2 to work through the two drive mechanisms 3 on both sides.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A battery pack interface frame for a heavy-duty truck battery swapping station, characterized in that: include The frame body (1) includes an annular frame (11) and protective plates (12) on the upper and lower surfaces of the frame (11). The frame (11) is provided with several hook connection frames, wherein the hook connection frames include reinforcing plates (111) located on the upper and lower surfaces of the frame (11). The reinforcing plates (111) are also equipped with lifting claws (2). The lifting claws (2) are driven by a driving mechanism (3) at the top of the frame (11), and the driving mechanism (3) can simultaneously drive two sets of lifting claws (2) on one side to rotate. The lifting hook (2) adopts an L-shaped structure, including a shaft (21) rotatably connected to the frame body (1) and a buckle (22) perpendicular to the shaft (21). Guide posts (4), all of which are set on the outside of the lifting hook (2); Battery box positioning post (5) is set at the bottom of the frame body (1) and is used to abut against the top of the battery box.

2. The battery pack interface frame for a heavy-duty truck battery swapping station according to claim 1, characterized in that: The drive mechanism (3) includes a mounting base (31) and a cylinder (32) and a telescopic rod (33) located on the mounting base (31), wherein the bottom of the mounting base (31) is rotatably connected to the frame (11), and the telescopic rod (33) is rotatably connected to the top of the lifting hook (2).

3. The battery pack interface frame for a heavy-duty truck battery swapping station according to claim 2, characterized in that: The shaft (21) of the lifting hook (2) passes through the reinforcing plate (111) and the top of the lifting hook (2) is equipped with a first drive disc (23), and the upper and lower reinforcing plates (111) are equipped with bearings that are rotatably connected to the shaft (21).

4. The battery pack interface frame for a heavy-duty truck battery swapping station according to claim 3, characterized in that: The first drive disk (23) has a first protrusion (231) and a second protrusion (232) extending out of the disk body on both sides, and the free end of the telescopic rod (33) is rotatably connected to the first protrusion (231). A connecting rod is rotatably connected to the second protrusion (232) of the first drive disk (23), wherein the connecting rod is rotatably connected to the third protrusion (241) on the second drive disk (24) located on the same side of the drive mechanism (3).

5. The battery pack interface frame for a heavy-duty truck battery swapping station according to claim 4, characterized in that: A limiting post (233) is installed on the reinforcing plate (111) corresponding to the first drive disk (23). The limiting post (233) is installed on the side of the second drive disk (24) away from the drive mechanism (3), and the limiting post (233) is located between the first protrusion (231) and the second protrusion (232) of the first drive disk (23).

6. The battery pack interface frame for a heavy-duty truck battery swapping station according to claim 4, characterized in that: The third protrusion (241) of the second drive disk (24) corresponds to the limiting plate (242) provided on its side. The limiting plate (242) is a rectangular right-angled side with an arc that fits the second drive disk (24), and limiting rods (243) are installed on both sides of the arc of the limiting plate (242).

7. A battery pack interface frame for a heavy-duty truck battery swapping station according to claim 5 or 6, characterized in that: The first drive disk (23) and the second drive disk (24) are both equipped with a limiting stop (25) located on the protruding side.

8. The battery pack interface frame for a heavy-duty truck battery swapping station according to claim 1, characterized in that: Several abutting rods (6) are also installed at the bottom edge of the frame body (1), including a rod body (61) installed in the bottom groove and an abutting head (62) slidably fitted on the rod body (61), wherein a spring is fitted on the rod body (61) and the two ends of the spring are respectively connected to the abutting head (62) and the bottom of the groove.

9. The battery pack interface frame for a heavy-duty truck battery swapping station according to claim 8, characterized in that: The clamping head (62) includes a cylindrical end (621) and a hemispherical buffer head (622) installed at the cylindrical end (621).

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