Chassis assembly of electric vehicle

Abstract

The utility model relates to a chassis assembly of an electric vehicle, in particular to a chassis assembly of an electric mine truck. The chassis assembly comprises a chassis structure, a battery structure and a fixing structure, wherein the chassis structure comprises a front module, a battery mounting groove, front and rear wheels and an electric drive assembly. The battery structure comprises a battery module, a battery connecting module and a butt joint locking opening. The fixing structure comprises a mounting plate, a guide-out groove and a guide groove. The driving structure comprises a driving motor and a plurality of gears and is in threaded connection with symmetrical threaded rods. The transmission structure comprises a transmission block and a threaded ring and is matched with a locking structure. By means of the design, self-locking and unlocking of the vehicle on the battery structure are achieved, and dependence on an external battery dismounting device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and in particular to an electric vehicle chassis assembly. Background Art

[0002] With the advancement of electric vehicle technology, the demand for improved vehicle range and ease of use is growing. Especially in heavy-duty environments like mines, electric mining trucks require frequent battery replacements to maintain continuous operation. Existing battery replacement systems often rely on complex external equipment to complete battery loading and unloading, which not only increases operating costs but also reduces work efficiency. Utility Model Content

[0003] In response to the problems in the related technology, the present invention proposes an electric vehicle chassis assembly to overcome the above technical problems existing in the existing related technology.

[0004] To this end, the specific technical solutions adopted in this utility model are as follows:

[0005] An electric vehicle chassis assembly includes a chassis structure including a front module, a battery mounting slot, a front wheel, a rear module, a rear wheel, and an electric drive assembly. A battery mounting slot is provided on one side of the front module, the front module is connected to the front wheel, one side of the battery mounting slot is connected to the rear module, the rear module is connected to the rear wheel, the rear wheel is connected to the electric drive assembly, the battery mounting slot is connected to the battery structure, a fixing structure is provided on one side of the battery structure, a fixing block is provided on one side of the fixing structure, a driving structure is connected inside the fixing structure, the driving structure is connected to the transmission structure, and the transmission structure is matched with a locking structure.

[0006] Furthermore, the battery structure includes a battery module, a battery connection module, and a docking lock. The battery module is connected to the battery connection module. A docking lock is provided on the outside of the battery connection module. The battery module and the battery connection module are fixedly connected by bolts.

[0007] Furthermore, the fixing structure includes a mounting plate, a lead-out groove, and a guide groove. A lead-out groove is provided on one side of the mounting plate, a guide groove is provided inside the mounting plate, and the mounting plate is mounted on one side of the battery connection module.

[0008] Furthermore, the driving structure includes a driving motor, a first gear, a second gear, a third gear, a fourth gear, and a symmetrical threaded rod. The driving end of the driving motor is connected to the first gear, one end of the first gear is engaged with the second gear, the other end of the first gear is engaged with the third gear, the third gear is engaged with the fourth gear, and the third gear and the fourth gear are connected to a symmetrical threaded rod. A fixed protective plate is provided on one side of the driving motor, and the first gear, the second gear, the third gear, and the fourth gear are all rotatably connected to the fixed protective plate, and the driving motor is fixedly connected to the fixed block.

[0009] Furthermore, the transmission structure includes a transmission block, a threaded ring, a limit groove, a locking block, and an inlet. The transmission block is rotatably connected with a threaded ring, a guide hole is provided on the threaded ring, a guide rod is matched with the guide hole, and the guide rod is fixedly installed in the guide groove. The transmission block is provided with a limit groove, and a locking block is slidably connected in the limit groove. The locking block is provided with an inlet, and the threaded ring is threadedly connected to the symmetrical threaded rod.

[0010] Furthermore, the locking structure includes a baffle, a block, and a transmission inclined slot. One side of the baffle is fixedly connected to the block, one side of the block is provided with a transmission inclined slot, and the baffle is fixedly installed in the guide slot.

[0011] The beneficial effects of the present utility model are as follows: through the built-in drive structure and transmission structure, the self-locking and unlocking of the battery structure are realized, the dependence on the external battery removal device is reduced, the battery replacement process is simplified, and the rapid replacement of the battery structure improves the use efficiency and maintenance convenience of the electric mining truck. Through the design of the symmetrical threaded rod, the rotation adjustment of the transmission block is realized, so that the locking structure can be accurately engaged on the docking lock mouth, thereby improving the reliability of the locking. This design reduces maintenance costs by reducing external dependence, while improving the safety and stability of the electric mining truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the main structure of an electric vehicle chassis assembly according to an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the chassis structure of an electric vehicle chassis assembly according to an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of a fixing block of an electric vehicle chassis assembly according to an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the battery structure of an electric vehicle chassis assembly according to an embodiment of the present utility model;

[0017] Figure 5 This is a schematic diagram of the fixing structure of an electric vehicle chassis assembly according to an embodiment of the present utility model;

[0018] Figure 6This is a schematic diagram of a guide groove of an electric vehicle chassis assembly according to an embodiment of the utility model;

[0019] Figure 7 This is a schematic diagram of a driving structure of an electric vehicle chassis assembly according to an embodiment of the present utility model;

[0020] Figure 8 This is a front view of a transmission structure of an electric vehicle chassis assembly according to an embodiment of the utility model;

[0021] Figure 9 This is a rear view of a transmission structure of an electric vehicle chassis assembly according to an embodiment of the present utility model;

[0022] Figure 10 This is a transmission schematic diagram of a transmission structure of an electric vehicle chassis assembly according to an embodiment of the present utility model;

[0023] Figure 11 This is a schematic diagram of a locking structure of an electric vehicle chassis assembly according to an embodiment of the utility model;

[0024] Figure 12 It is a schematic diagram of a docking lock of an electric vehicle chassis assembly according to an embodiment of the utility model.

[0025] In the picture:

[0026] 1. Chassis structure; 101. Front module; 102. Battery mounting slot; 103. Front wheel; 104. Rear module; 105. Rear wheel; 106. Electric drive assembly; 2. Battery structure; 201. Battery module; 202. Battery connection module; 203. Docking lock; 3. Fixing structure; 301. Mounting plate; 302. Guide slot; 303. Guide slot; 4. Fixing block; 5. Driving structure; 501. Driving motor; 502. First gear; 503. Second gear; 504. Third gear; 505. Fourth gear; 506. Symmetrical threaded rod; 6. Transmission structure; 601. Transmission block; 602. Threaded ring; 603. Limiting slot; 604. Locking block; 605. Introduction port; 7. Locking structure; 701. Baffle; 702. Block; 703. Transmission chute. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] According to an embodiment of the present utility model, an electric vehicle chassis assembly is provided.

[0029] like Figure 1-12 As shown, the electric vehicle chassis assembly according to an embodiment of the present invention includes a chassis structure 1 including a front module 101, a battery mounting slot 102, a front wheel 103, a rear module 104, a rear wheel 105, and an electric drive assembly 106. A battery mounting slot 102 is provided on one side of the front module 101, the front module 101 is connected to the front wheel 103, one side of the battery mounting slot 102 is connected to the rear module 104, the rear module 104 is connected to the rear wheel 105, the rear wheel 105 is connected to the electric drive assembly 106, the battery mounting slot 102 is connected to the battery structure 2, a fixing structure 3 is provided on one side of the battery structure 2, a fixing block 4 is provided on one side of the fixing structure 3, a driving structure 5 is connected inside the fixing structure 3, the driving structure 5 is connected to the transmission structure 6, and the transmission structure 6 is matched with a locking structure 7.

[0030] The front module 101, battery mounting slot 102, front wheel 103, rear module 104, rear wheel 105, and electric drive assembly 106 constitute the basic chassis assembly of the electric mining truck. The front module 101 and the front wheel 103 form a sub-control module, the rear wheel 105 and the rear module 104 form a sub-control module, and the electric drive assembly 106 forms a sub-control module. The three sub-control modules are connected to the master control module to form the basic control logic of the electric mining truck. The battery mounting slot 102 is fixedly connected to the fixed structure 3.

[0031] The battery structure 2 includes a battery module 201, a battery connection module 202, and a docking lock 203. The battery module 201 is connected to the battery connection module 202. The docking lock 203 is opened on the outside of the battery connection module 202. The battery module 201 and the battery connection module 202 are fixedly connected by bolts.

[0032] The battery module 201 and the battery connection module 202 are matched with a BMS battery management system to supply power to the electric drive assembly 106. The battery connection module 202 is connected and fixed to the lock block 604 of the transmission structure 6 through the docking lock 203, thereby fixing the battery structure 2 to complete the self-locking of the body of the replaceable battery module battery structure 2, reducing dependence on external installation, fixing and disassembly devices.

[0033] The fixing structure 3 includes a mounting plate 301 , a guide groove 302 , and a guide groove 303 . The guide groove 302 is provided on one side of the mounting plate 301 , and the guide groove 303 is provided inside the mounting plate 301 . The mounting plate 301 is mounted on one side of the battery connection module 202 .

[0034] The driving structure 5 includes a driving motor 501, a first gear 502, a second gear 503, a third gear 504, a fourth gear 505, and a symmetrical threaded rod 506. The driving end of the driving motor 501 is connected to the first gear 502, one end of the first gear 502 is meshed with the second gear 503, the other end of the first gear 502 is meshed with the third gear 504, the third gear 504 is meshed with the fourth gear 505, and the third gear 504 and the fourth gear 505 are connected to the symmetrical threaded rod 506. A fixed protective plate is provided on one side of the driving motor 501, and the first gear 502, the second gear 503, the third gear 504, and the fourth gear 505 are all rotatably connected to the fixed protective plate, and the driving motor 501 is fixedly connected to the fixed block 4.

[0035] There are two groups of drive structures 5 on both sides of each battery structure 2. Each group of drive structures 5 includes four symmetrical threaded rods 506. The symmetrical threaded rods 506 at the upper and lower ends are installed in the same direction, and the two middle symmetrical threaded rods 506 are installed in opposite directions to the symmetrical threaded rods 506 at the upper and lower ends. Two transmission structures 6 are installed on each symmetrical threaded rod 506. The transmission structure 6 corresponds to a locking structure 7. The uppermost symmetrical threaded rod 506 and the adjacent symmetrical threaded rod 506 are respectively connected to the third gear 504 and the fourth gear 505, and their transmission directions are opposite, and the transmission direction of the transmission structure 6 driven by them is also opposite.

[0036] The transmission structure 6 includes a transmission block 601, a threaded ring 602, a limiting groove 603, a locking block 604, and an introduction port 605. The threaded ring 602 is rotatably connected to the transmission block 601. A guide hole is provided on the threaded ring 602. The guide hole is matched with a guide rod. The guide rod is fixedly installed in the guide groove 303. A limiting groove 603 is provided on the transmission block 601. A locking block 604 is slidably connected in the limiting groove 603. An introduction port 605 is provided on the locking block 604. The threaded ring 602 is threadedly connected to the symmetrical threaded rod 506.

[0037] The locking structure 7 includes a baffle 701 , a block 702 , and a transmission chute 703 . The block 702 is fixedly connected to one side of the baffle 701 . The transmission chute 703 is opened on one side of the block 702 . The baffle 701 is fixedly installed in the guide groove 302 .

[0038] When the driving motor 501 drives the first gear 502, it will directly drive the second gear 503 and the third gear 504, so that the rotation directions of the two symmetrical threaded rods 506 in the middle are consistent, and the rotation directions of the symmetrical threaded rods 506 at the upper and lower ends are consistent, so that the symmetrical threaded rods 506 drive the transmission block 601 with the threaded ring 602 thereon to transmit, and the threaded ring 602 moves linearly under the linear guidance of the guide rod. Since the transmission block 601 is rotationally connected to the threaded ring 602, when the two transmission blocks 601 move toward each other on the threaded rod, the transmission block 601 will be rotated and adjusted according to the guiding effect of the guide groove 303, so that it is aligned with the initial state when the guide groove 302 is in the same position. By rotating it ninety degrees, the inlet 605 of the locking block 604 is engaged with the transmission bevel 703 of the stop block 702. After the engagement, when the transmission block 601 maintains a fixed angle for linear transmission, the locking block 604 will slide in the limit slot 603 under the transmission bevel 703, and then gradually lead out the locking block 604, and finally lead out the locking block 604 to engage in the docking lock 203, completing the fixation of the battery connection module 202, thus realizing the self-locking of the vehicle to the battery structure 2. When the threaded rod is reversed, the locking block 604 is retracted into the limit slot 603 under the guidance of the bevel of the docking lock 203, and then can be unlocked, reducing the dependence on the external battery removal device when replacing the battery.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electric vehicle chassis assembly, characterized in that: The chassis structure (1) includes a front module (101), a battery installation slot (102), a front wheel (103), a rear module (104), a rear wheel (105), and an electric drive assembly (106). The front module (101) is provided with a battery installation slot (102) on one side, the front module (101) is connected to the front wheel (103), the battery installation slot (102) is connected to the rear module (104), and the rear module (104) is connected to the rear wheel (105). A rear wheel (105) is connected to an electric drive assembly (106), the battery mounting slot (102) is connected to a battery structure (2), a fixing structure (3) is provided on one side of the battery structure (2), a fixing block (4) is provided on one side of the fixing structure (3), a driving structure (5) is connected inside the fixing structure (3), the driving structure (5) is transmission-connected to a transmission structure (6), and the transmission structure (6) is matched with a locking structure (7).

2. The electric vehicle chassis assembly according to claim 1, characterized in that: The battery structure (2) comprises a battery module (201), a battery connection module (202), and a docking lock (203); the battery module (201) is connected to the battery connection module (202); a docking lock (203) is provided on the outside of the battery connection module (202); and the battery module (201) and the battery connection module (202) are fixedly connected by bolts.

3. The electric vehicle chassis assembly according to claim 2, characterized in that: The fixing structure (3) comprises a mounting plate (301), a guide groove (302), and a guide groove (303); the guide groove (302) is provided on one side of the mounting plate (301); the guide groove (303) is provided inside the mounting plate (301); and the mounting plate (301) is mounted on one side of the battery connection module (202).

4. The electric vehicle chassis assembly according to claim 3, characterized in that: The driving structure (5) comprises a driving motor (501), a first gear (502), a second gear (503), a third gear (504), a fourth gear (505), and a symmetrical threaded rod (506); the driving end of the driving motor (501) is connected to the first gear (502); one end of the first gear (502) is meshed with the second gear (503); the other end of the first gear (502) is meshed with the third gear (504); and the third gear (504) is meshed with the fourth gear (505).

5. The electric vehicle chassis assembly according to claim 4, characterized in that: The third gear (504) and the fourth gear (505) are connected to a symmetrical threaded rod (506); a fixed protective plate is provided on one side of the drive motor (501); the first gear (502), the second gear (503), the third gear (504), and the fourth gear (505) are all rotatably connected to the fixed protective plate; and the drive motor (501) is fixedly connected to the fixed block (4).

6. The electric vehicle chassis assembly according to claim 5, characterized in that: The transmission structure (6) comprises a transmission block (601), a threaded ring (602), a limiting groove (603), a locking block (604), and an introduction port (605); the threaded ring (602) is rotatably connected in the transmission block (601); a guide hole is provided on the threaded ring (602); a guide rod is matched with the guide hole; the guide rod is fixedly installed in the guide groove (303); a limiting groove (603) is provided on the transmission block (601); a locking block (604) is slidably connected in the limiting groove (603); an introduction port (605) is provided on the locking block (604); and the threaded ring (602) is threadedly connected to the symmetrical threaded rod (506).

7. The electric vehicle chassis assembly according to claim 6, characterized in that: The locking structure (7) comprises a baffle (701), a stopper (702), and a transmission chute (703); one side of the baffle (701) is fixedly connected to the stopper (702); one side of the stopper (702) is provided with a transmission chute (703); and the baffle (701) is fixedly installed in the guide groove (302).

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