A mobile vehicle for battery replacement

Abstract

The utility model belongs to the technical field of fork truck, especially point to a kind of mobile vehicle for battery replacement, including mobile fork truck, the fork arm group of being equipped with the up-and-down lifting movement on mobile fork truck, the battery replacement tray is arranged on fork arm group, the battery replacement tray has the support plane for battery pack placement and the guide side wall located at the left and right sides of support plane, the horizontal limiting space that two guide side walls form is formed to the left and right displacement of battery pack is limited, the front and rear ends of support plane are open, and the two open ends of support plane are detachably connected with limiting piece, the longitudinal limiting space that two limiting pieces form is formed to the front and rear displacement of battery pack is limited.The utility model has the battery replacement tray that can guide the constraint of battery pack, not only ensure the stability safety and high efficiency in the carrying process of battery pack, also ensure that battery pack can be laterally accurately replaced with fixed posture, effectively solve the safety hidden trouble problem caused by existing battery replacement difficulty, low alignment accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of forklift technology, and specifically refers to a mobile vehicle for changing batteries. Background Technology

[0002] With the growing emphasis on environmental protection and sustainable development, electric industrial vehicles (such as large electric forklifts, electric tractors, and pallet trucks) are increasingly used in airports, warehousing, logistics, and manufacturing. These vehicles are typically equipped with large and heavy battery packs as their power source. To ensure efficient and continuous operation, they generally employ a removable battery pack replacement system rather than a built-in battery system that requires prolonged charging. This means that when the vehicle's battery is depleted, a fully charged battery pack can be quickly replaced with the depleted one.

[0003] Replacing battery packs for these large electric vehicles generally presents the following difficulties and challenges: 1. Manual battery swapping is difficult and inefficient: In order to save space, many vehicles and their charging stations are designed to insert or remove battery packs from the side. However, the battery packs used in vehicles usually weigh hundreds or thousands of kilograms, making it almost impossible to handle them by hand. They can only be handled with the help of traditional forklifts or other lifting equipment.

[0004] 2. Traditional forklifts lack dedicated limit switches and pose safety hazards due to difficulties in lateral battery swapping alignment: Because the gaps between the battery pack and the vehicle's battery compartment, as well as between the battery pack and the charging station slot, are very small, and the forks of traditional forklifts only provide simple lifting and handling functions, they lack the ability to effectively constrain and guide the battery pack during movement and battery swapping. Therefore, not only is the battery pack prone to relative displacement or even falling off the forks during forklift movement, potentially causing electrical or personnel safety accidents, but also during lateral battery swapping, operators have difficulty controlling the position and orientation of the battery pack, making it highly susceptible to collisions and scratches to the battery pack casing, vehicle interface, or charging station interface, causing equipment damage, and even potentially leading to electrical safety accidents due to connector misalignment. Summary of the Invention

[0005] The purpose of this invention is to provide a mobile vehicle for battery swapping, which has a battery swapping tray that can guide and constrain the battery pack. This not only ensures the stability, safety, and efficiency of the battery pack transportation process, but also ensures that the battery pack can be swapped accurately from the side in a fixed posture. This effectively solves the problems of difficult battery swapping and low alignment accuracy that cause safety hazards.

[0006] This utility model is implemented as follows: A mobile vehicle for battery swapping includes a mobile forklift with a fork arm assembly capable of vertical movement. The fork arm assembly is equipped with a battery swapping tray, which has a support plane for placing a battery pack and guide sidewalls on the left and right sides of the support plane. A lateral limiting space is formed between the two guide sidewalls to restrict the lateral displacement of the battery pack. The front and rear ends of the support plane are open, and both open ends of the support plane can be detachably connected to limiting components. A longitudinal limiting space is formed between the two limiting components to restrict the longitudinal displacement of the battery pack.

[0007] In the aforementioned mobile vehicle for battery swapping, the fork arm assembly includes two fork arms arranged side by side, the battery swapping tray is placed on the two fork arms, and the battery swapping tray is connected to the two fork arms via a detachable component.

[0008] In the aforementioned mobile vehicle for battery swapping, the detachable component includes two base plates respectively disposed on the left and right sides of the bottom surface of the battery swapping tray. The two base plates are located between or outside the two fork arms. Several fastening bolts are distributed along the axial direction on the base plates. The fastening bolts pass through laterally and are threaded onto the base plates. The head end of the fastening bolt is fitted with a screw handle, and the tail end face can abut against the corresponding side fork arm.

[0009] In the aforementioned mobile vehicle for battery replacement, a plurality of universal ball seats are arranged on the supporting plane, and each universal ball seat is rotatably connected to a ball bearing. The battery pack is placed and rotatably fitted onto the ball bearing of the universal ball seat.

[0010] In the aforementioned mobile vehicle for battery replacement, a plurality of guide bearings distributed along the front-rear direction are rotatably connected to the two guide sidewalls, and the guide bearings can roll into contact with the corresponding sidewall of the battery pack.

[0011] In the aforementioned mobile vehicle for battery replacement, both the front and rear ends of the guide sidewall are inclined toward the side away from the support plane to form a guide slope.

[0012] In the aforementioned mobile vehicle for battery replacement, insertion holes are provided at both open ends of the supporting plane, and the limiting member is inserted and fitted into the corresponding insertion holes.

[0013] In the aforementioned mobile vehicle for battery replacement, the limiting member has an inverted U-shaped structure, and two horizontally arranged insertion through holes at the same open end are provided for the two ends of the corresponding limiting member to be inserted and engaged.

[0014] The outstanding advantages of this utility model compared to the prior art are: Based on the existing structure of mobile forklifts, this utility model designs a battery swapping tray specifically for lateral battery swapping. It can guide and constrain the battery pack, ensuring not only stability, safety, and efficiency during battery pack handling, but also ensuring that the battery pack can be swapped accurately in a fixed posture. This effectively solves the safety hazards caused by difficulties in battery swapping and low alignment accuracy. Attached Figure Description

[0015] Figure 1 This utility model is an overall three-dimensional Figure 1 ; Figure 2 This utility model is an overall three-dimensional Figure 2 ; Figure 3 This is a three-dimensional view of the battery swapping tray of this utility model.

[0016] In the diagram: 1. Mobile forklift; 2. Battery swapping pallet; 3. Battery pack; 4. Support plane; 5. Guide sidewall; 6. Limiting component; 7. Fork arm body; 8. Base plate; 9. Fastening bolt; 10. Tightening handle; 11. Universal ball joint; 12. Ball bearing; 13. Guide bearing; 14. Guide ramp. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —3: A mobile vehicle for battery swapping includes a mobile forklift 1. The mobile forklift 1 is equipped with a fork arm assembly that can move up and down. A battery swapping tray 2 is provided on the fork arm assembly. The battery swapping tray 2 has a support plane 4 for placing a battery pack 3 and guide sidewalls 5 located on the left and right sides of the support plane 4. A lateral limiting space is formed between the two guide sidewalls 5 to restrict the lateral displacement of the battery pack 3. The front and rear ends of the support plane 4 are open, and a limiting member 6 can be detachably connected to both open ends of the support plane 4. A longitudinal limiting space is formed between the two limiting members 6 to restrict the longitudinal displacement of the battery pack 3.

[0018] The detachable design of the limiting component 6 allows for lateral and longitudinal limiting when the battery pack 3 is transported by the mobile forklift 1. During the battery swapping process, by controlling the position of the mobile vehicle and the up-and-down lifting of the fork arm assembly, the opening end of the support plane 4 on the battery swapping tray 2 is aligned with the battery compartment opening of the external battery swapping equipment. Then, by removing the limiting component 6 on the side away from the mobile forklift 1, the battery pack 3 can be accurately pushed into the battery compartment.

[0019] Based on the existing structure of the mobile forklift 1, this utility model designs a battery swapping tray 2 specifically for lateral battery swapping of the battery pack 3. It can guide and constrain the battery pack 3, ensuring not only the stability, safety and efficiency of the battery pack 3 during transportation, but also ensuring that the battery pack 3 can be swapped laterally in a fixed posture, effectively solving the safety hazards caused by the difficulty of battery swapping and low alignment accuracy.

[0020] Furthermore, the battery swapping tray 2 can be directly fixed to the fork arms of the fork arm assembly, or it can directly replace the existing fork arm structure. In this embodiment, the battery swapping tray 2 is designed as a modular structure to facilitate future replacement and maintenance. The fork arm assembly includes two fork arm bodies 7 arranged in parallel. The battery swapping tray 2 is placed on the two fork arm bodies 7, and the battery swapping tray 2 is connected to the two fork arm bodies 7 through detachable components.

[0021] The detachable component can directly fix the battery swapping tray 2 and the fork arm 7 with bolts and threads. In this embodiment, in order to fasten the battery swapping tray 2 to the two fork arms 7, the detachable component includes two base plates 8 respectively set on the left and right sides of the bottom surface of the battery swapping tray 2. The two base plates 8 are located between or outside the two fork arms 7. Several fastening bolts 9 are distributed along the axial direction on the base plates 8. The fastening bolts 9 pass through laterally and are threaded onto the base plates 8. The head end of the fastening bolt 9 is fitted with a screw handle 10, and the tail end face can abut against the corresponding side fork arm 7. That is, the fastening bolts 9 on the two base plates 8 abut against the corresponding side fork arm 7 to achieve the fixation of the battery swapping tray 2 and the fork arm 7.

[0022] To facilitate the forward and backward movement of the battery pack 3 on the supporting plane 4, several universal ball seats 11 are arranged on the supporting plane 4. Each universal ball seat 11 is rolled with a ball bearing 12, and the battery pack 3 is placed and rolls on the ball bearing 12 of the universal ball seat 11. Correspondingly, to facilitate the forward and backward movement of the battery pack 3 on the supporting plane 4 and to avoid damage caused by friction between the battery pack 3 and the guide sidewall 5, several guide bearings 13 distributed along the forward and backward direction are rotatably connected to the two guide sidewalls 5. These guide bearings 13 can roll with the corresponding sidewall of the battery pack 3.

[0023] Furthermore, in order to facilitate the pulling of the battery pack 3 of the external battery swapping device onto the support plane 4 of the battery swapping tray 2, the front and rear ends of the guide sidewall 5 are inclined toward the side away from the support plane 4 to form a guide slope 14.

[0024] Furthermore, the detachable connection between the limiting member 6 and the battery swapping tray 2 can be fixed by threads or latches. In this embodiment, both open ends of the supporting plane 4 are provided with insertion through holes, and the limiting member 6 is inserted into the corresponding insertion through hole. Moreover, the limiting member 6 has an inverted U-shaped structure, with two horizontally arranged insertion through holes at the same open end, allowing the two ends of the corresponding limiting member 6 to be inserted into each other.

[0025] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A mobile vehicle for battery swapping, comprising a mobile forklift (1), wherein the mobile forklift (1) is equipped with a fork arm assembly capable of vertical lifting and lowering, characterized in that: The fork arm assembly is provided with a battery swapping tray (2), which has a support plane (4) for placing the battery pack (3) and guide sidewalls (5) located on the left and right sides of the support plane (4). A lateral limiting space is formed between the two guide sidewalls (5) to restrict the left and right displacement of the battery pack (3). The front and rear ends of the support plane (4) are open, and the two open ends of the support plane (4) can be detachably connected to limiting members (6). A longitudinal limiting space is formed between the two limiting members (6) to restrict the front and rear displacement of the battery pack (3).

2. A mobile vehicle for battery replacement according to claim 1, characterized in that: The fork arm assembly includes two fork arm bodies (7) arranged side by side, and the battery swapping tray (2) is placed on the two fork arm bodies (7), and the battery swapping tray (2) is connected to the two fork arm bodies (7) by a detachable component.

3. A mobile vehicle for battery replacement according to claim 2, characterized in that: The detachable component includes two base plates (8) respectively located on the left and right sides of the bottom surface of the battery swapping tray (2). The two base plates (8) are located between or outside the two fork arms (7). Several fastening bolts (9) are distributed along the axial direction on the base plates (8). The fastening bolts (9) are threaded through the base plates (8) in the transverse direction and connected to the base plates (8). The head end of the fastening bolt (9) is fitted with a screw handle (10), and the tail end face can abut against the corresponding side fork arm (7).

4. A mobile vehicle for battery replacement according to claim 1, characterized in that: Several universal ball seats (11) are arranged on the support plane (4), and each universal ball seat (11) is connected to a ball (12) in a rolling manner. The battery pack (3) is placed and rolled on the ball (12) of the universal ball seat (11).

5. A mobile vehicle for battery swapping according to claim 1 or 4, characterized in that: Several guide bearings (13) distributed along the front-rear direction are rotatably connected to the two guide sidewalls (5). The guide bearings (13) can roll with the corresponding sidewall of the battery pack (3).

6. A mobile vehicle for battery replacement according to claim 1, characterized in that: The front and rear ends of the guide sidewall (5) are inclined toward the side away from the support plane (4) to form a guide slope (14).

7. A mobile vehicle for battery replacement according to claim 1, characterized in that: The support plane (4) has two openings with insertion holes, and the limiting member (6) is inserted into the corresponding insertion hole.

8. A mobile vehicle for battery replacement according to claim 7, characterized in that: The limiting member (6) has an inverted U-shaped structure, and two insertion through holes are arranged horizontally at the same opening end for the two ends of the corresponding limiting member (6) to be inserted and matched.

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