New energy commercial vehicle frame suitable for middle-mounted battery replacement

Abstract

The utility model discloses a new energy commercial vehicle frame suitable for middle-mounted battery replacement, which comprises two longitudinal beams and a plurality of cross beams connected with the two longitudinal beams, and is characterized in that a locking cavity for accommodating a locking component in a middle-mounted battery component is arranged in a space between the two longitudinal beams and above the cross beams; the length of the locking cavity is 50%-80% of the length of the frame, a lock hole plate and a guide structure are arranged in the locking cavity, the lock hole plate is matched with a lock pin in the locking assembly to form a locking structure, the guide structure is used for guiding the locking assembly to enter and exit from the locking cavity, and a lock hole in the lock hole plate is a taper hole. The battery assembly has the beneficial effects that 1, the lockhole plate is arranged in the locking cavity, so that the battery assembly of the same model can be matched with different frames, the applicability of the battery assembly can be enhanced, and the design and manufacturing cost can be reduced; and 2, each lock pin is matched with one lock hole plate when the connecting assembly and the locking assembly are designed, so that the manufacturing is convenient, and the mounting precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of commercial vehicle frame technology, specifically to a new energy commercial vehicle frame suitable for mid-mounted battery swapping. Background Technology

[0002] New energy commercial vehicles often employ battery swapping, where batteries are replaced at battery swapping stations for rapid energy replenishment. The battery pack of a new energy commercial vehicle is located between two longitudinal beams and above the crossbeams of the vehicle frame, and is secured to the frame by a locking assembly at its bottom. During battery swapping, the locking device must first be released from the frame, and then the battery pack can be replaced by pulling it out.

[0003] The applicant previously applied for a mid-mounted battery pack for new energy commercial vehicles (authorization announcement number CN220639494U), which uses a locking pin in a locking assembly to cooperate with a locking hole on the vehicle frame to stably limit the battery pack to the frame. Because the frame structures of various new energy commercial vehicle manufacturers are different, it is necessary to design the structure of the tray at the bottom of the battery pack and the locking assembly to adapt to the frame, resulting in high design and manufacturing costs, which is detrimental to the promotion of new energy commercial vehicles. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a new energy commercial vehicle frame suitable for mid-mounted battery swapping. By setting a lock hole plate in the locking cavity, the same battery pack can be adapted to different vehicle frames, thus reducing costs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A frame for a new energy commercial vehicle suitable for mid-mounted battery swapping, comprising two longitudinal beams and multiple crossbeams connecting the two longitudinal beams. The key feature is that a locking cavity is provided in the space between the two longitudinal beams and above the crossbeams to accommodate the locking component in the mid-mounted battery pack. The length of the locking cavity is 50%-80% of the frame length. A lock hole plate is provided in the locking cavity to cooperate with the locking pin in the locking component to form a locking structure, and a guide structure is provided to guide the locking component to enter and exit the locking cavity. The lock hole in the lock hole plate is a conical hole.

[0006] Furthermore, a lock hole plate matching each locking pin in the locking assembly is provided in the locking cavity.

[0007] Furthermore, the lock hole plate is provided with a guide groove to guide the lock pin into the lock hole.

[0008] Furthermore, a connecting assembly is provided in the locking cavity. The connecting assembly includes two base plates symmetrically arranged in the locking cavity and connected to the crossbeam. The two base plates are respectively located below the two rows of locking pins in the locking assembly, and the lock hole plate is fixed on the corresponding base plate.

[0009] Furthermore, the outer side of the base plate is provided with an upwardly bent portion that connects to all the lock hole plates on the base plate.

[0010] Furthermore, a positioning groove for positioning the lock hole plate is provided at the bend of the base plate.

[0011] Furthermore, a connecting assembly is provided in the locking cavity. The connecting assembly includes two base plates symmetrically arranged in the locking cavity and connected to the crossbeam. The cross-section of the base plates is L-shaped. The horizontal parts of the two base plates are respectively located below the two rows of locking pins in the locking assembly, and the vertical parts are respectively located on one side of the corresponding locking pins. The lock hole plate is the vertical part of the base plates.

[0012] Furthermore, an electrical connector mounting base is provided at the inner end of the base plate, and a positioning hole is provided on the electrical connector mounting base to cooperate with the positioning rod in the locking assembly.

[0013] Furthermore, a positioning identification block is provided at the outer end of the base plate.

[0014] Furthermore, the guiding structure includes a guide bar disposed on the base plate for guiding the rollers in the locking assembly.

[0015] The beneficial effects of this utility model are: 1. By setting a lock hole plate in the locking cavity, the same model of battery pack can be adapted to different vehicle frames, which can enhance the applicability of the battery pack and reduce design and manufacturing costs; 2. A connecting component is designed, and each locking pin in the locking component is equipped with a lock hole plate, or each row of locking pins is equipped with a lock hole plate, which facilitates manufacturing and ensures installation accuracy; 3. A guide groove is designed on the side of the lock hole plate to facilitate the locking pin entering the lock hole; 4. A bending part is designed on the base plate, which can increase the connection strength of the lock hole plate and can also be used as a lock hole plate. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a first embodiment of the new energy commercial vehicle frame applicable to mid-mounted battery swapping according to this utility model;

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure of the connecting component;

[0018] Figure 3 This is a schematic diagram of the connection between the lock hole plate and the base plate in Embodiment 2 of the new energy commercial vehicle frame applicable to mid-mounted battery swapping according to this utility model;

[0019] Figure 4 This is a schematic diagram of the connection between the lock hole plate and the base plate in Embodiment 3 of the new energy commercial vehicle frame applicable to mid-mounted battery swapping according to this utility model;

[0020] Figure 5 This is a schematic diagram of the lock hole plate in Embodiment 4 of the present invention, which is applicable to the frame of a new energy commercial vehicle with a mid-mounted battery swapping system.

[0021] Figure 6 This utility model of battery assembly is applicable to the frame of a new energy commercial vehicle with a mid-mounted battery swapping system. (See the schematic diagram of the lock hole plate in Embodiment 5.)

[0022] Figure 7 This utility model of the battery assembly is applicable to the frame of a new energy commercial vehicle with a mid-mounted battery swapping system. It is another structural schematic diagram of the lock hole plate in Embodiment 5.

[0023] Figure 8 This is a schematic diagram of the battery assembly structure;

[0024] Figure 9 yes Figure 8 A magnified view of a section at point A in the middle;

[0025] Figure 10 This is a schematic diagram of the structure after the battery assembly is installed in Embodiment 1 of this utility model.

[0026] In the attached diagram, 1 is a crossbeam, 2 is a longitudinal beam, 3 is a locking pin, 4 is a positioning rod, 5 is a locking hole, 6 is a base plate, 6-1 is a bending part, 6-2 is a positioning groove, 7 is a locking hole plate, 7-1 is a guide groove, 8 is a guide strip, 9 is a positioning identification block, 10 is an electrical connector fixing seat, 10-1 is a positioning hole, 11 is a connecting plate, and a is a locking cavity. Detailed Implementation

[0027] See appendix Figure 1-10This utility model provides a frame for a new energy commercial vehicle suitable for mid-mounted battery swapping, including two longitudinal beams 2 and multiple crossbeams 1 connecting the two longitudinal beams 2. A locking cavity a is provided in the space between the two longitudinal beams 2 and above the crossbeams 1 to accommodate the locking component of the mid-mounted battery pack. Within the locking cavity a, there is a locking hole plate 7 that cooperates with the locking pin 3 in the locking component to form a locking structure, and a guide structure for guiding the locking component to enter and exit the locking cavity a. The locking hole 5 on the locking hole plate 7 is a conical hole to facilitate the entry of the locking pin 3 into the locking hole 5. The space above the locking cavity a is the battery cavity. The entire outer end of the cavity adopts an open structure, facilitating the entry and exit of the battery pack with the locking component into the space between the two longitudinal beams 2 for battery swapping and locking. When the battery pack is locked onto the frame, the top of the battery pack is located above the longitudinal beams 2. During the frame manufacturing process, the locking hole plate 7 can be directly fixed to the frame by welding or bolting according to the structure of the matching locking component, thus allowing the same battery pack to be adapted to multiple frames.

[0028] The length of locking cavity a (or base plate 6) is 50%-80% of the frame length. The length of locking cavity a can be set according to the actual battery length to match battery components of different degrees.

[0029] Example 1: See Appendix Figure 1 , 2 8-10 In this embodiment, a connecting assembly is provided in the locking cavity a. The connecting assembly includes two base plates 6 symmetrically arranged in the locking cavity a and connected to multiple crossbeams 1. The two base plates 6 are respectively located below two rows of locking pins in the locking assembly, and the lock hole plate 7 is fixed on the corresponding base plate 6. To increase the connection strength, multiple connecting plates 11 are provided between the two base plates 6.

[0030] Along the length of each base plate 6, there is a corresponding number of lock hole plates 7, each corresponding to the number of locking pins in each row of locking pins. The lock hole plates 7 are first installed on the base plate 6 by welding or bolting. Then, the connecting plate 11 connects the two base plates 6 to form an assembly. Finally, the entire assembly is connected to the crossbeam 1 by welding or bolting. This design ensures the installation accuracy of each lock hole plate 7 and its corresponding locking pin 3, thereby guaranteeing the locking effect.

[0031] An electrical connector mounting base 10 is provided at the inner end of the base plate 6 to connect the two base plates 6, and the electrical connector is connected to the mounting base. The electrical connector mounting base 10 is provided with a positioning hole 10-1 that mates with the positioning rod 4 in the locking assembly. The electrical connector mounting base 10 also serves to connect the two base plates 6.

[0032] Each base plate 6 is equipped with a guide strip 8 that cooperates with the rollers in the locking assembly to form a guiding structure. When the battery pack enters the cavity, the annular groove in the roller cooperates with the guide strip 8 to guide the entire battery pack into the vehicle frame. After the battery pack is guided into place, the locking pin 3 is located on one side of the locking hole 5. The sliding shaft in the locking assembly is released, allowing the locking pin 3 to enter the locking hole 5 under the action of the spring, thereby completing the locking and limiting of the battery pack.

[0033] A positioning identification block 9 can also be provided on the outside of the base plate 6 to realize the positioning between the battery swapping equipment and the frame.

[0034] Example 2: See Appendix Figure 3 Unlike Embodiment 1, this embodiment has an upwardly bent portion 6-1 on the outer side of each base plate 6, which connects all the lock hole plates 7. The bent portion 6-1 can act as a reinforcing rib and also prevent deformation of the welded lock hole plates 7, which could prevent the locking pin 3 from entering the lock hole 5.

[0035] Example 3: See Appendix Figure 4 Unlike Embodiment 2, this embodiment features a positioning groove 6-2 on the base plate 6 for positioning the keyhole plate 7. This groove is laser-cut with an accuracy of ±0.1mm, ensuring the installation accuracy of the keyhole plate 7. After the positioning groove 6-2 is cut, it is bent to form a bent portion 6-1. During fixing, the keyhole plate 7 is first placed in the groove, and then welded in place.

[0036] Example 4: See Appendix Figure 5 Unlike Embodiment 1, this embodiment has a guide groove 7-1 on the lock hole plate 7 to guide the locking pin 3 into the lock hole 5. When the locking pin 3 is located on the side of the lock hole plate 7, the sliding shaft in the locking assembly is released, allowing the locking pin 3 to enter the guide groove 7-1 under the action of the spring and contact the bottom of the groove (but not extend out completely). The locking pin 3 moves along the guide groove 7-1 with the battery assembly. After the battery assembly moves into place, the locking pin 3 is continuously pushed by the spring and thus smoothly enters the lock hole 5, completing the locking and limiting of the battery assembly.

[0037] Example 5: Unlike Examples 1-4, this example includes a connecting assembly in the locking cavity a. The connecting assembly includes two base plates 6 symmetrically arranged in the locking cavity a and connected to the crossbeam 1. The cross-section of the base plates 6 is L-shaped. The horizontal parts of the two base plates 6 are located below the two rows of locking pins in the locking assembly, and the vertical parts are located on one side of the corresponding locking pins. The lock hole plate 7 is the vertical part of the base plate 6.

[0038] In practical implementation, the base plate 6 can be made of angle steel, and the lock hole plate 7 is the vertical part of the angle steel, with a number of lock holes corresponding to the number of lock pins in each row of lock pins. See appendix. Figure 6The vertical part can also be cut to make a number of lock hole plates 7 corresponding to the number of lock pins in each row of lock pins. To increase strength, reinforcing ribs can also be set for each lock hole plate 7.

[0039] The angle steel mentioned above can also be replaced with L-shaped bent pieces. See appendix. Figure 7 The number of keyhole plates 7 corresponding to the number of locking pins in each row of locking pins is achieved through processes such as cutting, stamping, and bending on the bent part. Reinforcing ribs can also be added to each keyhole plate 7 to increase strength.

[0040] Finally, it is necessary to note that the above content is only used to help understand the technical solution of the present invention and should not be construed as a limitation on the scope of protection of the present invention; any non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention are all within the scope of protection claimed by the present invention.

Claims

1. A new energy commercial vehicle frame suitable for mid-mounted battery replacement, comprising two longitudinal beams (2) and a plurality of cross beams (1) connecting the two longitudinal beams (2), characterized in that: The space between the two longitudinal beams (2) and above the cross beam (1) is provided with a locking cavity (a) for accommodating the locking assembly of the middle-mounted battery pack, the length of the locking cavity (a) is 50%-80% of the length of the frame, and the locking cavity (a) is provided with a locking hole plate (7) matched with the locking pin (3) in the locking assembly to form a locking structure and a guide structure for guiding the locking assembly in and out of the locking cavity (a), and the locking hole (5) in the locking hole plate (7) is a tapered hole.

2. The new energy commercial vehicle frame suitable for middle-mounted battery replacement according to claim 1, characterized in that: The locking cavity (a) is provided with a locking hole plate (7) matched with each locking pin (3) in the locking assembly.

3. The new energy commercial vehicle frame suitable for mid-mounted battery replacement according to claim 2, characterized in that: The locking hole plate (7) is provided with a guide groove (7-1) for guiding the locking pin (3) into the locking hole (5).

4. The new energy commercial vehicle frame suitable for middle-mounted battery replacement according to claim 2, characterized in that: The locking cavity (a) is provided with a connecting assembly, the connecting assembly includes two bottom plates (6) symmetrically arranged in the locking cavity (a) and connected with the cross beam (1), and the two bottom plates (6) are respectively located below two rows of locking pins in the locking assembly, and the locking hole plate (7) is fixed on the corresponding bottom plate (6).

5. The new energy commercial vehicle frame suitable for mid-mount battery replacement according to claim 4, characterized in that: The outer side of the bottom plate (6) is provided with a bent portion (6-1) bent upward and connected with all the locking hole plates (7) on the bottom plate (6).

6. The new energy commercial vehicle frame suitable for mid-mount battery replacement according to claim 5, characterized in that: The bent portion of the bottom plate (6) is provided with a positioning groove (6-2) for positioning the locking hole plate (7).

7. The new energy commercial vehicle frame suitable for middle-mounted battery replacement according to claim 1, characterized in that: The locking cavity (a) is provided with a connecting assembly, the connecting assembly includes two bottom plates (6) symmetrically arranged in the locking cavity (a) and connected with the cross beam (1), the cross section of the bottom plate (6) is L-shaped, the horizontal parts of the two bottom plates (6) are respectively located below two rows of locking pins in the locking assembly, and the vertical parts are respectively located on one side of the corresponding locking pin, and the locking hole plate (7) is the vertical part of the bottom plate (6).

8. The new energy commercial vehicle frame suitable for mid-mount battery replacement according to any one of claims 4-7, characterized in that: The inner end of the bottom plate (6) is provided with an electrical connector fixing seat (10), and the electrical connector fixing seat (10) is provided with a positioning hole (10-1) matched with the positioning rod (4) in the locking assembly.

9. The new energy commercial vehicle frame suitable for mid-mount type battery replacement according to any one of claims 4-7, characterized in that: The outer end of the bottom plate (6) is provided with a positioning identification block (9).

10. The new energy commercial vehicle frame suitable for mid-mount type battery replacement according to any one of claims 4-7, characterized in that: The guide structure includes a guide strip (8) arranged on the bottom plate (6) for guiding the roller in the locking assembly.

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