Semi-automatic battery replacement device

Abstract

The application discloses a kind of semi-automatic battery replacement battery devices, it is related to new energy vehicle battery replacement technical field, including the battery support assembly for bearing power battery, and the reversible side protection assembly integratedly installed in the outside of battery support assembly;The battery support assembly includes two segments of front and rear arrangement support body, two segments of support body are disconnected at front end middle part position and form longitudinal through fork recess.This application forms longitudinal through fork recess by disconnecting at the front end middle part of battery support assembly, and sets up U-shaped reinforcing connecting plate to supplement strength and torsional stiffness at the disconnected place, which provides direct insertion operation space for fork truck fork leg or elevator support arm, and also ensures the overall carrying capacity of battery support, without completely pulling out battery to realize fork lifting, completely solve the technical problem of no operation space for fork truck fork leg.

Description

Technical Field

[0001] This invention relates to the field of battery swapping technology for new energy vehicles, and specifically to a semi-automatic battery swapping device. Background Technology

[0002] With the popularization of new energy vehicles, battery swapping has emerged as a solution to effectively alleviate range anxiety. Currently, fully automated battery swapping stations, exemplified by NIO, are technologically mature, offering convenient, fast, and reliable swapping. However, fully automated swapping stations rely on dedicated stations and fixed spaces, resulting in significant costs and making them unsuitable for the relatively small commercial vehicle market. Commercial vehicles are characterized by wide wheelbase ranges, long overall lengths, and variable battery placement heights and positions, making the cost of establishing dedicated fully automated swapping stations prohibitively high. Therefore, semi-automated battery swapping solutions have emerged, requiring only conventional battery charging stations, forklifts, or manual lifts to complete the swapping process. These solutions are more practical and have a wider range of future applications.

[0003] Currently, commercial vehicle power batteries are generally located on the left and right sides of the chassis, the lower middle part of the chassis, or the rear of the cab and the front of the cargo box. The left and right side placement is the most common and is the primary application scenario for semi-automatic battery swapping solutions. However, in existing technologies, conventional battery brackets are enclosed at the bottom, leaving no space for forklift legs, and the side guards are located on the outside of the battery, making removal difficult and hindering rapid battery swapping. Specifically, the side guards are usually bolted to the chassis or cargo box, making disassembly and assembly cumbersome; the bottom of the battery bracket does not provide space for forklift legs to reach in, preventing forklifts or manual lifts from directly accessing the battery during swapping. Therefore, there is an urgent need for a semi-automatic battery swapping device that can solve the problems of forklift leg space and side guard obstruction. Summary of the Invention

[0004] The present invention provides a semi-automatic battery swapping device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A semi-automatic battery swapping device includes a battery support assembly for carrying a power battery, and a flip-up side protection assembly integrated and installed on the outside of the battery support assembly. The battery support assembly includes two support bodies arranged front and rear, which are disconnected at the middle of their front ends to form a longitudinally penetrating forklift groove. This groove allows forklift forks or lift arms to extend into it for battery lifting and placement. The disconnected sections of the two support bodies are fixedly connected by a U-shaped reinforcing connecting plate to strengthen the structural strength and torsional stiffness at the disconnection point. The inner side of the flip-up side protection assembly... The end is hinged to the outer wall of the battery bracket assembly, allowing the side protection assembly to switch between a closed protection state and a flip-over avoidance state around the hinge axis. At least two sets of detachable locking components are also provided between the flip-over side protection assembly and the battery bracket assembly. When the side protection assembly is in the closed protection state, the detachable locking components lock the two together, and the side protection assembly covers the outside of the power battery to form lateral protection. When the side protection assembly is in the flip-over avoidance state, the detachable locking components release the outer locking, and the side protection assembly flips outward around the hinge axis, exposing the side access space of the power battery.

[0006] A further improvement of the technical solution of the present invention is that: the cross-section of the U-shaped reinforcing connecting plate is U-shaped, and it fastens and covers the outer side wall and upper and lower end faces of the profile at the break point of the two support bodies; bolt mounting holes are provided on both side walls and upper and lower walls of the U-shaped reinforcing connecting plate, and multiple sets of fastening bolts are used to lock and connect the two support bodies to the corresponding positions; a reinforcing pad is provided between the inner wall of the U-shaped reinforcing connecting plate and the outer wall of the support body, and a longitudinally extending reinforcing rib is stamped in the middle of the outer surface of the U-shaped reinforcing connecting plate.

[0007] A further improvement of the technical solution of the present invention is that: the width of the forklift groove matches the lateral dimension of the standard forklift leg, and the bottom of the groove has a vertical lifting space not less than the thickness of the forklift leg; guide ramps are provided on both sides of the entrance end of the forklift groove, and the guide ramps converge from front to back and inward to guide the forklift leg to quickly align and extend; the bottom of the inner wall of the forklift groove is covered with a wear-resistant liner, and the wear-resistant liner is made of high molecular weight polyethylene.

[0008] A further improvement of the technical solution of the present invention is that: the rotatable side protection assembly includes a side protection outer plate and a side protection fixing bracket, the side protection fixing bracket being fixedly connected to the inner side wall of the side protection outer plate; the side protection fixing bracket is provided with two sets of upper and lower hinge lugs on the side near the hinge end, and the outer side wall of the battery bracket assembly is correspondingly provided with a hinge support, the hinge lugs and the hinge support being rotatably connected by a hinge pin to form the hinge axis.

[0009] A further improvement of the technical solution of the present invention is that: the detachable locking assembly is a bolt locking assembly, which is respectively set at the front end and the rear end of the side protection assembly; each bolt locking assembly includes an inner locking bolt and an outer locking bolt, the inner locking bolt is inserted between the hinge lug and the hinge support, and also serves as the hinge pin; when the battery is replaced, the outer locking bolt is removed, and the inner locking bolt is retained as the hinge pivot, so as to realize the flipping and avoidance of the side protection assembly.

[0010] A further improvement of the technical solution of the present invention is that: the detachable locking assembly is a plug-in locking assembly, which is respectively set at the front end and the rear end of the side protection assembly; each plug-in locking assembly includes a positioning stud fixed to the outside of the battery bracket assembly, and a cotter pin passing through the extended end of the positioning stud; the corresponding position of the side protection fixing bracket is provided with a plug-in hole, and the positioning stud is inserted into the plug-in hole and axially locked by the cotter pin; when swapping batteries, the rear cotter pin is removed and the corresponding positioning stud is pulled out, while the front positioning stud is retained as a hinge pivot to realize the flipping and avoidance of the side protection assembly.

[0011] A further improvement of the technical solution of the present invention is that: at least two sets of conical positioning pins are fixedly provided on the inner support wall of the battery bracket assembly. The conical positioning pins extend inward in the horizontal direction, with a conical guide section at the end and a cylindrical positioning section at the root. Positioning pin holes are correspondingly opened on the side of the power battery. When the battery is installed, automatic alignment is achieved through the conical guide section and radial limiting is achieved through the cylindrical positioning section.

[0012] A further improvement of the technical solution of the present invention is that: the flip-up side protection assembly further includes an anti-collision beam and a buffer pad; the anti-collision beam is horizontally fixed to the middle of the inner side wall of the side protection outer plate, and the buffer pad is pasted to the inner side wall of the side protection outer plate and is located between the anti-collision beam and the side of the power battery; the outer surface of the side protection outer plate is an arc transition structure, and the edges are rounded and blunted.

[0013] A further improvement of the technical solution of the present invention is that: multiple T-shaped mounting grooves are provided on the bottom support surface of the battery bracket assembly, and T-shaped bolts are slidably arranged in the T-shaped mounting grooves. The power battery is fixed to the battery bracket assembly by the cooperation of the T-shaped bolts and the pressure plate; multiple longitudinal support ribs are also provided on the bottom support surface of the battery bracket assembly, and the support ribs are in line contact with the bottom surface of the power battery for support.

[0014] The outer side wall of the battery bracket assembly is also provided with a limit stop and a magnetic fastener; when the side protection assembly is flipped outward to the maximum angle, the side wall of the side protection fixing bracket abuts against the limit stop, forming a flip angle limit; at the same time, the magnetic fastener attracts the metal surface of the side protection fixing bracket, maintaining the stability of the flipped avoidance state. The inner side wall of the battery bracket assembly is fixed with multiple sets of frame connecting feet, and the frame connecting feet are provided with longitudinal adjustment elongated holes, which are locked to the side of the frame longitudinal beam by bolts, and the installation position can be adjusted longitudinally to adapt to different wheelbase models.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention provides a semi-automatic battery swapping device. By breaking the battery bracket assembly at the front center to form a longitudinally penetrating forklift groove, and installing a U-shaped reinforcing connecting plate at the break point to strengthen the structure and torsional rigidity, it provides direct operating space for forklift legs or lift arms while ensuring the overall load-bearing capacity of the battery bracket. Forklift lifting can be achieved without fully pulling out the battery, completely solving the technical problem of insufficient operating space for forklift legs. A flip-up side protection component is integrated on the outside of the battery bracket assembly. The inner end of the side protection component is hinged to the battery bracket, and a detachable locking component enables quick unlocking and locking. During battery swapping, only the outer locking component needs to be removed, leaving the inner hinge point intact, to flip the side protection outwards to expose the battery. Complete removal of the side protection is unnecessary, making operation simple and quick. After battery swapping, the locking mechanism is reset, balancing driving safety and battery swapping convenience. The side protection component is integrated into the battery bracket, eliminating the need for fixing it to the cargo box or frame, effectively reducing the length of the connecting beam and shortening the cantilever. Simultaneously, the backing against the battery bracket significantly improves collision resistance. The conical locating pin enables automatic guidance and alignment during battery installation, further improving battery swapping efficiency and installation accuracy. This invention features a simple structure and low cost, is suitable for forklift or manual lift operations, and is applicable to the small-volume, complex commercial vehicle sector. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a schematic diagram of the side protection flip-over state front view structure of the present invention; Figure 5 This is a top view of the side protection structure in the flipped state of the present invention; Figure 6 This is a side view of the detachable locking assembly of the present invention when it is a plug-in locking assembly; Figure 7 This is a schematic diagram of the side protection structure after it is flipped over according to the present invention; Figure 8 This is a schematic diagram of the side protection structure after flipping over according to the present invention.

[0017] In the diagram: 1. Battery bracket assembly; 11. Bracket body; 12. Forklift groove; 13. U-shaped reinforcing connecting plate; 14. Guide ramp; 15. Wear-resistant liner; 16. Conical locating pin; 17. T-shaped mounting slot; 18. Frame connecting foot; 19. Limiting block; 110. Magnetic fastener; 2. Reversible side protection assembly; 21. Side protection outer plate; 22. Side protection fixing bracket; 23. Hinge lug; 24. Hinge support; 25. Anti-collision crossbeam; 26. Buffer pad; 3. Detachable locking assembly; 31. Inner locking bolt; 32. Outer locking bolt; 33. Locating stud; 34. Cotter pin. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments: Example 1, as Figures 1-8 As shown, this invention provides a semi-automatic battery swapping device, including a battery support assembly 1 for carrying a power battery, and a flip-up side protective assembly 2 integrated and installed on the outside of the battery support assembly 1. The battery support assembly 1 includes two support bodies 11 arranged front and rear, which are disconnected at the middle of the front end to form a longitudinally penetrating forklift groove 12 for forklift legs or lift arm to extend into for battery lifting and placement. The disconnected positions of the two support bodies 11 are fixedly connected by a U-shaped reinforcing connecting plate 13 to reinforce the structural strength and torsional stiffness of the disconnected position. The flip-up side... The inner end of the protective component 2 is hinged to the outer wall of the battery bracket assembly 1, allowing the side protective component to switch between a closed protective state and a flipped-over avoidance state around the hinge axis. At least two sets of detachable locking components 3 are also provided between the flipped side protective component 2 and the battery bracket assembly 1. When the side protective component is in the closed protective state, the detachable locking components 3 lock the two together and the side protective component covers the outside of the power battery to form lateral protection. When the side protective component is in the flipped-over avoidance state, the detachable locking components 3 release the outer locking, and the side protective component flips outward around the hinge axis, exposing the side access space of the power battery.

[0019] It should be noted that: the battery bracket assembly 1 is used to support and fix the power battery; the bracket body 11 is the main supporting structure of the battery bracket assembly 1; the forklift groove 12 is a longitudinal through groove for the forklift forks to extend into; the U-shaped reinforcing connecting plate 13 is used to reinforce the structural strength at the break point between the two sections of the bracket body 11; the flip-up side protection assembly 2 is used to form protection on the outside of the battery and can be flipped open; the detachable locking assembly 3 is used to lock the side protection assembly onto the battery bracket assembly 1.

[0020] In this embodiment, by disconnecting the front middle of the battery bracket assembly 1 to form a forklift groove 12, and reinforcing the disconnect with a U-shaped reinforcing connecting plate 13, the problem of insufficient operating space for the forklift legs is solved, while ensuring structural strength. By hinged the side protection assembly 2 to the outside of the battery bracket assembly 1 and using the detachable locking assembly 3 to achieve quick locking and unlocking, the side protection can switch between closed protection and flip-over avoidance states. During battery swapping, simply releasing the lock allows the side protection to be flipped open without complete removal, making operation simple and quick. This embodiment achieves rapid side protection avoidance and effective forklift leg insertion, providing a structural foundation for rapid battery swapping.

[0021] Example 2, as Figures 1-8 As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the cross-section of the U-shaped reinforcing connecting plate 13 is U-shaped, and it fastens and covers the outer side wall and upper and lower end faces of the profile at the break point of the two bracket bodies 11; bolt mounting holes are provided on both side walls and upper and lower walls of the U-shaped reinforcing connecting plate 13, and multiple sets of fastening bolts are used to lock and connect it to the corresponding positions of the two bracket bodies 11; a reinforcing pad is provided between the inner wall of the U-shaped reinforcing connecting plate 13 and the outer wall of the bracket body 11; a longitudinally extending reinforcing rib is stamped in the middle of the outer surface of the U-shaped reinforcing connecting plate 13; the width of the forklift groove 12 matches the lateral dimension of the standard forklift fork leg; a vertical lifting space of not less than the thickness of the forklift fork leg is reserved at the bottom of the groove; guide ramps 14 are provided on both sides of the entrance end of the forklift groove 12, and the guide ramps 14 converge from front to back and inward to guide the forklift fork leg to quickly align and extend; a wear-resistant lining is laid on the bottom of the inner wall of the forklift groove 12. Plate 15, wear-resistant lining plate 15 is made of high molecular weight polyethylene. The flip-up side protection assembly 2 includes a side protection outer plate 21 and a side protection fixing bracket 22. The side protection fixing bracket 22 is fixedly connected to the inner side wall of the side protection outer plate 21. The side protection fixing bracket 22 is provided with two sets of upper and lower hinge lugs 23 on the side near the hinge end. The outer side wall of the battery bracket assembly 1 is provided with a corresponding hinge support 24. The hinge lugs 23 and the hinge support 24 are rotatably connected by a hinge pin to form a hinge axis. The detachable locking assembly 3 is a bolt locking assembly, which is respectively set at the front end and rear end of the side protection assembly. Each bolt locking assembly includes an inner locking bolt 31 and an outer locking bolt 32. The inner locking bolt 31 passes between the hinge lug 23 and the hinge support 24 and also serves as a hinge pin. When swapping batteries, the outer locking bolt 32 is removed, and the inner locking bolt 31 is retained as a hinge pivot to realize the flip-up avoidance of the side protection assembly.

[0022] It should be noted that: the U-shaped reinforcing connecting plate 13 is fastened and covered at the break point of the bracket body 11; the reinforcing shim is used to fill the gap between the U-shaped reinforcing connecting plate 13 and the bracket body 11 to improve the connection reliability; the reinforcing rib is used to improve the bending stiffness of the U-shaped reinforcing connecting plate 13; the guide slope 14 is used to guide the forklift legs to quickly align; the wear-resistant liner 15 is used to protect the bottom of the forklift groove 12 and prevent the forklift legs from wearing the bracket body 11; the side protection outer plate 21 is used to directly bear the lateral impact load; the side protection fixing bracket 22 is used to fix the side protection outer plate 21 to the hinge ear seat 23; the hinge ear seat 23 and the hinge support 24 cooperate to form the hinge point; the inner locking bolt 31 and the outer locking bolt 32 together achieve front and rear double-point locking.

[0023] In this embodiment, the U-shaped reinforcing connecting plate 13 provides a wrapping reinforcement at the break point, which, together with reinforcing pads and longitudinal reinforcing ribs, effectively compensates for the structural strength loss caused by the break, ensuring the bending and torsional resistance of the battery bracket. The guide ramp 14 guides the forklift legs to quickly align, improving the ease of forklift operation. The wear-resistant liner 15 prevents wear on the bottom of the forklift groove 12 due to repeated forklift operations, extending the device's service life. By using the inner locking bolt 31 as a hinge pin, the side protection component can be flipped by simply removing the outer locking bolt 32 during battery swapping, resulting in fewer steps and higher efficiency. This embodiment further optimizes the structural strength at the break point and the ease of battery swapping.

[0024] Example 3, as Figures 1-8As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the detachable locking assembly 3 is a plug-in locking assembly, respectively disposed at the front end and rear end of the side protection assembly; each plug-in locking assembly includes a positioning stud 33 fixed to the outside of the battery bracket assembly 1, and a cotter pin 34 passing through the extended end of the positioning stud 33; a corresponding insertion hole is provided on the side protection fixing bracket 22, and the positioning stud 33 is inserted into the insertion hole and axially locked by the cotter pin 34; when swapping batteries, the rear cotter pin 34 is removed and the corresponding positioning stud 33 is pulled out, while the front positioning stud is retained. The stud 33 serves as a hinge pivot, enabling the side protection assembly to flip and avoid obstacles. At least two sets of conical positioning pins 16 are fixedly installed on the inner support wall of the battery bracket assembly 1. The conical positioning pins 16 extend inwards horizontally, with a conical guide section at one end and a cylindrical positioning section at the root. Positioning pin holes are correspondingly provided on the side of the power battery. During battery installation, automatic alignment is achieved through the conical guide section, and radial limiting is achieved through the cylindrical positioning section. The flip-able side protection assembly 2 also includes a collision beam 25 and a buffer pad 26. The collision beam 25 is laterally fixed to the middle of the inner wall of the outer side protection plate 21. The buffer pad 26 is attached to the inner wall of the side protection outer plate 21 and is located between the anti-collision beam 25 and the side of the power battery. The outer surface of the side protection outer plate 21 has a rounded transition structure, and the edges are rounded and blunted. Multiple T-shaped mounting slots 17 are opened on the bottom support surface of the battery bracket assembly 1. T-bolts are slidably installed in the T-shaped mounting slots 17. The power battery is fixed to the battery bracket assembly 1 by the T-bolts and the pressure plate. Multiple longitudinal support ribs are also provided on the bottom support surface of the battery bracket assembly 1. The support ribs are in line contact with the bottom surface of the power battery. The outer side wall of the battery bracket 1 is also provided with a limit stop 19 and a magnetic fastener 110; when the side protection assembly is flipped outward to the maximum angle, the side wall of the side protection fixing bracket 22 abuts against the limit stop 19 to form a flip angle limit; at the same time, the magnetic fastener 110 attracts the metal surface of the side protection fixing bracket 22 to maintain the stability of the flip avoidance state. The inner side wall of the battery bracket assembly 1 is fixed with multiple sets of frame connecting feet 18. The frame connecting feet 18 are provided with longitudinal adjustment elongated holes, which are locked to the side of the frame longitudinal beam by bolts, and the installation position can be adjusted longitudinally to adapt to different wheelbase models.

[0025] It should be noted that: the positioning stud 33 inserts into the insertion hole and cooperates with the cotter pin 34 to achieve quick locking and unlocking; the conical positioning pin 16 is used for automatic guidance and positioning during battery installation; the conical guide section is used to guide the initial alignment of the battery; the cylindrical positioning section is used for precise positioning and radial limiting of the battery; the anti-collision beam 25 is used to enhance the impact resistance of the side protection outer plate 21; the buffer pad 26 is used to absorb collision energy and buffer the contact between the battery and the side protection; the T-shaped mounting groove 17 allows the T-bolt to slide and adjust the installation position; the limit stop 19 is used to limit the maximum angle of the side protection assembly to flip outward; the magnetic fastener 110 is used to attract and fix the side protection assembly in the flipped state; the frame connecting foot 18 is used to fix the battery bracket assembly 1 to the frame longitudinal beam; the longitudinal adjustment elongated hole is used to adjust the installation position to adapt to different wheelbase models.

[0026] In this embodiment, the positioning stud 33 of the plug-in locking assembly, in conjunction with the cotter pin 34, allows for quick unlocking during battery swapping by simply removing the cotter pin 34 and pulling out the positioning stud 33, eliminating the need for tools and further improving swapping efficiency. The tapered guide section of the tapered positioning pin 16 automatically guides the battery during installation, while the precise radial limiting of the cylindrical positioning section ensures accurate battery installation and repeatability. The dual protective structure of the anti-collision beam 25 and the buffer pad 26 effectively absorbs lateral collision energy, protecting the battery from impact damage. The limiting stop 19 restricts the rotation angle of the side protection assembly, preventing excessive rotation and structural interference. The magnetic fastener 110 adheres to the metal surface of the side protection mounting bracket 22, ensuring stability during rotation and preventing accidental rotation that could cause injury or operational interference. The longitudinal adjustment holes on the frame connecting feet 18 allow for flexible adjustment of the installation position according to the wheelbase of different vehicle models, enhancing the device's adaptability to various commercial vehicle types. This embodiment achieves tool-free quick unlocking, precise battery positioning, effective collision protection, and stable maintenance of the flipped state, significantly improving the ease of operation, safety, and versatility of semi-automatic battery swapping.

[0027] The working principle of this semi-automatic battery swapping device will be explained in detail below.

[0028] like Figures 1-8As shown, under normal driving conditions, the side protection component 2 is locked and fixed to the outside of the battery bracket component 1 by the detachable locking component 3, covering the outside of the power battery and providing lateral protection for the battery. When the battery is depleted and needs to be replaced, the operator first releases the locking state of the detachable locking component 3: for bolt locking components, remove the outer locking bolt 32, leaving the inner locking bolt 31 as the hinge pivot; for plug-in locking components, remove the rear cotter pin 34 and pull out the corresponding positioning stud 33, leaving the front positioning stud 33 as the hinge pivot. Subsequently, the operator flips the side protection component 2 outward around the hinge axis. When the side wall of the side protection fixing bracket 22 abuts against the limit stop 19, it reaches the maximum flipping angle. The magnetic fixing component 110 attracts the metal surface of the side protection fixing bracket 22, keeping the side protection component 2 stably in the flipped and avoidance state, exposing the side access space for the battery.

[0029] The operator drives a forklift or operates a manual lift, aligning the forklift legs along the guide ramp 14 with the entrance of the forklift groove 12. The forklift legs slide into the forklift groove 12 along the guide ramp 14. A wear-resistant liner 15 protects the bottom of the forklift groove 12 from wear. After the forklift legs extend into the bottom of the battery, the forklift is lifted, raising the power battery from the battery bracket assembly 1, disengaging the battery from the cylindrical positioning section of the conical positioning pin 16. After the forklift removes the depleted battery, a fully charged battery is placed into the space above the forklift groove 12. The conical guide section of the conical positioning pin 16 guides the battery to automatically align. As the battery descends, the conical guide section guides the battery to align the positioning pin hole with the conical positioning pin 16. The battery continues to descend, causing the cylindrical positioning section to pass through the positioning pin hole, achieving precise positioning.

[0030] After the battery is positioned, it is secured to the battery bracket assembly 1 using T-bolts in the T-mounting slot 17 and the pressure plate. The operator then flips the side protection assembly 2 back to its closed protective state, allowing the anti-collision beam 25 and buffer pad 26 to make flexible contact with the battery side. The removable locking assembly 3 is then relocked, and the side protection assembly 2 covers the outside of the power battery, providing lateral protection. At this point, the entire battery swapping process is complete, and the vehicle can continue driving.

[0031] Based on the above working principle, the device provides direct operating space for the forklift legs by using the forklift groove 12, achieves rapid side protection by using the flip-up side protection component 2, and achieves precise battery positioning by using the conical positioning pin 16, thus realizing semi-automatic and rapid battery swapping for commercial vehicle power batteries.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A semi-automatic battery swapping device, characterized in that: It includes a battery bracket assembly (1) for carrying the power battery, and a flip-up side protection assembly (2) integrated on the outside of the battery bracket assembly (1). The battery bracket assembly (1) includes two bracket bodies (11) arranged front and rear. The two bracket bodies (11) are broken at the middle of the front end to form a longitudinally penetrating forklift groove (12). The forklift groove (12) is used for forklift legs or lifting arm to extend into to complete the lifting and placement of the battery. The broken position of the two bracket bodies (11) is fixedly connected by a U-shaped reinforcing connecting plate (13) to strengthen the structural strength and torsional stiffness of the broken position. The inner end of the flip-out side protection component (2) is hinged to the outer wall of the battery bracket component (1), so that the side protection component can switch between the closed protection state and the flip-out avoidance state around the hinge axis; at least two sets of detachable locking components (3) are also provided between the flip-out side protection component (2) and the battery bracket component (1). When the side protection component is in the closed protection state, the detachable locking components (3) lock the two together and the side protection component covers the outside of the power battery to form lateral protection; when the side protection component is in the flip-out avoidance state, the detachable locking components (3) release the outer locking and the side protection component flips outward around the hinge axis to expose the side access space of the power battery.

2. The semi-automatic battery swapping device according to claim 1, characterized in that: The U-shaped reinforcing connecting plate (13) has a U-shaped cross section and fastens and covers the outer side wall and upper and lower end face of the profile at the break point of the two bracket bodies (11). The two side walls and the upper and lower walls of the U-shaped reinforcing connecting plate (13) are provided with bolt mounting holes, and are locked and connected to the corresponding positions of the two bracket bodies (11) by multiple sets of fastening bolts. A reinforcing pad is provided between the inner wall of the U-shaped reinforcing connecting plate (13) and the outer wall of the bracket body (11), and a longitudinally extending reinforcing rib is stamped in the middle of the outer surface of the U-shaped reinforcing connecting plate (13).

3. The semi-automatic battery swapping device according to claim 1, characterized in that: The width of the forklift groove (12) matches the lateral dimension of the standard forklift leg, and the bottom of the groove has a vertical lifting space not less than the thickness of the forklift leg; the inlet end of the forklift groove (12) is provided with guide ramps (14) on both sides, which converge from front to back and inward to guide the forklift leg to quickly align and extend; the bottom of the inner wall of the forklift groove (12) is covered with a wear-resistant liner (15), which is made of high molecular weight polyethylene.

4. A semi-automatic battery swapping device according to claim 1, characterized in that: The flip-up side protection assembly (2) includes a side protection outer plate (21) and a side protection fixing bracket (22). The side protection fixing bracket (22) is fixedly connected to the inner side wall of the side protection outer plate (21). The side protection fixing bracket (22) is provided with two sets of upper and lower hinge lugs (23) on the side near the hinge end. The outer side wall of the battery bracket assembly (1) is provided with a corresponding hinge support (24). The hinge lugs (23) and the hinge support (24) are rotatably connected by a hinge pin to form the hinge axis.

5. A semi-automatic battery swapping device according to claim 1, characterized in that: The detachable locking assembly (3) is a bolt locking assembly, which is respectively set at the front end and rear end of the side protection assembly. Each bolt locking assembly includes an inner locking bolt (31) and an outer locking bolt (32). The inner locking bolt (31) passes between the hinge ear seat (23) and the hinge support (24) and also serves as the hinge pin. When the battery is replaced, the outer locking bolt (32) is removed, and the inner locking bolt (31) is retained as the hinge pivot to realize the flipping and avoidance of the side protection assembly.

6. A semi-automatic battery swapping device according to claim 1, characterized in that: The detachable locking assembly (3) is a plug-in locking assembly, which is respectively set at the front end and the rear end of the side protection assembly. Each plug-in locking assembly includes a positioning stud (33) fixed to the outside of the battery bracket assembly (1) and a cotter pin (34) passing through the extended end of the positioning stud (33). The corresponding position of the side protection fixing bracket (22) is provided with a plug hole. After the positioning stud (33) passes through the plug hole, it is axially locked by the cotter pin (34). When the battery is replaced, the rear cotter pin (34) is removed and the corresponding positioning stud (33) is pulled out. The front positioning stud (33) is retained as a hinge pivot to realize the flipping and avoidance of the side protection assembly.

7. A semi-automatic battery swapping device according to claim 1, characterized in that: At least two sets of conical positioning pins (16) are fixedly provided on the inner support wall of the battery bracket assembly (1). The conical positioning pins (16) extend inward in the horizontal direction, with a conical guide section at the end and a cylindrical positioning section at the root. Positioning pin holes are opened on the side of the power battery. When the battery is installed, automatic alignment is achieved through the conical guide section and radial positioning is achieved through the cylindrical positioning section.

8. A semi-automatic battery swapping device according to claim 1, characterized in that: The flip-up side protection assembly (2) also includes a collision beam (25) and a buffer pad (26); the collision beam (25) is horizontally fixed to the middle of the inner wall of the side protection outer plate (21), and the buffer pad (26) is pasted to the inner wall of the side protection outer plate (21) and located between the collision beam (25) and the side of the power battery; the outer surface of the side protection outer plate (21) is a rounded transition structure, and the edges are rounded and blunted.

9. A semi-automatic battery swapping device according to claim 1, characterized in that: The bottom support surface of the battery bracket assembly (1) has multiple T-shaped mounting grooves (17), and T-shaped bolts are slidably installed in the T-shaped mounting grooves (17). The power battery is fixed to the battery bracket assembly (1) by the T-shaped bolts and the pressure plate. The bottom support surface of the battery bracket assembly (1) is also provided with multiple longitudinal support ribs, and the support ribs are in line contact with the bottom surface of the power battery.

10. A semi-automatic battery swapping device according to claim 1, characterized in that: The outer side wall of the battery bracket assembly (1) is also provided with a limit stop (19) and a magnetic fastener (110); when the side protection assembly is flipped outward to the maximum angle, the side wall of the side protection fixing bracket (22) abuts against the limit stop (19) to form a flip angle limit; at the same time, the magnetic fastener (110) attracts the metal surface of the side protection fixing bracket (22) to maintain the stability of the flip avoidance state. The inner side wall of the battery bracket assembly (1) is fixed with multiple sets of frame connecting feet (18). The frame connecting feet (18) are provided with longitudinal adjustment elongated holes, which are locked to the side of the frame longitudinal beam by bolts. The installation position can be adjusted longitudinally to adapt to different wheelbase models.

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