New energy vehicle tool box bottom shell and positioning tool thereof

Abstract

The utility model discloses a new energy automobile tool box bottom shell and its positioning frock, including the shell, the inboard wall of shell is close to middle part position fixedly connected with side block, the inside both ends middle part position of shell is symmetrically welded with end stand, the side block is with two end stands and is in triangular structure distribution, the surface of shell is close to the corner all is equipped with the positioning hole B, and the corner of shell all adopts the chamfer structure design. The utility model passes side block and two end racks and forms triangular distribution structure, combines the stress dispersion design of connecting claw, has improved the structural stability and the deformation resistance of bottom shell itself significantly, and the corner design of chamfer structure can also avoid the damage of knocking in the assembly process.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle application technology, and in particular to a toolbox bottom shell for new energy vehicles and its positioning fixture. Background Technology

[0002] As an important carrier of green travel, the structural stability and assembly precision of the components of new energy vehicles directly affect the performance and safety of the entire vehicle. As a key storage component of new energy vehicles, the toolbox must have sufficient structural strength in its bottom shell to withstand the weight of the stored items and the vibration and impact during driving. At the same time, it must meet the production requirements of rapid and precise assembly to adapt to the efficient production pace of the new energy vehicle industry.

[0003] Existing toolbox bottom shells for new energy vehicles generally suffer from unreasonable structural design. Some bottom shells have uneven distribution of internal support structures, resulting in insufficient overall rigidity. During vehicle operation, they are prone to deformation or displacement due to vibration. Furthermore, the corners of the bottom shells are mostly right angles, making them susceptible to damage from impacts during assembly and use. At the same time, the matching positioning fixtures are complex in structure and cumbersome in operation, with a single positioning reference, making it difficult to achieve precise alignment between the bottom shell and other components. This not only reduces assembly efficiency but also easily leads to excessive assembly gaps due to positioning deviations, affecting the sealing and service life of the toolbox. Therefore, this utility model proposes a toolbox bottom shell for new energy vehicles and its positioning fixture. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a bottom shell of a toolbox for new energy vehicles and its positioning fixture, so as to improve the structural stability and assembly positioning accuracy of the bottom shell, simplify the positioning operation process, and improve the assembly efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides a toolbox bottom shell for new energy vehicles, including a shell, a side block fixedly connected to the inner side wall of the shell near the middle position, and end brackets symmetrically welded to the middle positions of both ends of the shell. The side block and the two end brackets are distributed in a triangular structure. Positioning holes B are provided on the surface of the shell near the corners, and the corners of the shell are all designed with chamfered edges.

[0006] The present invention is further configured such that: the end face of the side block is bent and extends out of the side wall of the housing, and a positioning groove is provided on the side block near the end face.

[0007] Through the above technical solution, the side block adopts a bent structure and extends out of the shell side wall, which not only increases the connection contact area between the side block and the shell and improves the structural strength, but also forms an auxiliary limit with the external structure through the extended part; the opening of the positioning groove provides a positioning benchmark for the subsequent precise cooperation with the positioning tooling, ensuring accurate correspondence during positioning and avoiding misalignment.

[0008] The present invention is further configured such that: a positioning hole A is provided in the middle of each of the two end frames, and a connecting claw is provided at the connection part between the two end frames and the housing, and the connecting claw is configured with an arc-shaped bending structure.

[0009] Through the above technical solution, positioning hole A, as the core positioning structure at the end frame, provides a precise insertion and mating position for the positioning shaft of the positioning fixture, ensuring the reliability of positioning; the arc-shaped bending structure of the connecting claw can disperse the stress at the connection between the end frame and the shell, avoiding the connection from breaking due to vibration during vehicle operation, while enhancing the fixed stability of the end frame inside the shell, and further improving the structural rigidity of the entire bottom shell in conjunction with the triangular distribution structure formed by the side blocks.

[0010] A positioning fixture for the bottom shell of a toolbox for a new energy vehicle includes a crossbar, a reinforcing rod and a side rod fixedly connected to one side of the middle part and the bottom of the crossbar, and a vertical shaft is inserted near both ends of the crossbar, and the end face of the vertical shaft is adapted to be inserted into the positioning hole B. Positioning shafts are installed at both ends of the crossbar, and the end face of the positioning shaft is adapted to be inserted into the corresponding positioning hole A.

[0011] The present invention is further configured such that: the side rod is configured with an L-shaped structure, and its end face is provided with a positioning strip adapted to the positioning groove, the positioning strip being adapted to be inserted into the interior of the positioning groove.

[0012] Through the above technical solution, the L-shaped side rod can flexibly adapt to the side wall shape of the shell. The positioning strip on its end face and the positioning groove of the side block form a concave-convex fit. Utilizing the positioning principle of the mortise and tenon structure, the displacement of the bottom shell in the horizontal direction is restricted. At the same time, it cooperates with the positioning function of the vertical axis and the positioning axis to form multi-dimensional positioning and improve positioning accuracy.

[0013] The present invention is further configured such that the reinforcing rod is an L-shaped structure, and the top of the vertical side of the reinforcing rod is in close contact with the inner top of the shell.

[0014] Through the above technical solution, the top of the vertical side of the L-shaped reinforcing rod abuts against the top of the inner shell to form a vertical support, which can effectively offset the vertical force on the shell during assembly or when the car is moving, prevent the shell from deforming vertically, and at the same time reinforce the structure of the positioning fixture itself, ensuring that the positioning fixture remains stable during use and avoiding the positioning effect being affected by the deformation of the fixture.

[0015] The present invention is further configured such that: a limit bolt is threadedly connected to the position of the crossbar near the vertical axis; the end face of the crossbar is configured with a Z-shaped structure; and the positioning axis is distributed perpendicular to the vertical axis.

[0016] Through the above technical solution, the limiting bolt can fix the position of the vertical shaft by the threaded locking action after the vertical shaft is inserted into the positioning hole B, preventing the vertical shaft from loosening or falling off during the positioning process and ensuring the reliability of the positioning; the Z-shaped crossbar can optimize the force distribution of the tooling, and the vertical distribution of the positioning shaft and the vertical shaft makes the positioning force complementary in both horizontal and vertical directions, further restricting the degree of freedom of the bottom shell and achieving precise positioning.

[0017] The beneficial effects of this utility model are as follows: 1. The bottom shell of a toolbox for new energy vehicles proposed in this utility model forms a triangular distribution structure with side blocks and two end frames. Combined with the stress dispersion design of the connecting claws, it significantly improves the structural stability and deformation resistance of the bottom shell itself. The chamfered corner design can also avoid bumps and damage during assembly. 2. The positioning fixture for the bottom shell of a toolbox for new energy vehicles proposed in this utility model achieves rapid and accurate positioning of the bottom shell through multi-dimensional positioning cooperation of vertical shaft, positioning shaft, and positioning strip, as well as the supporting and reinforcing effect of reinforcing rod. This simplifies the assembly operation process, while the setting of limit bolts ensures the reliability of positioning and effectively improves assembly efficiency and assembly quality. Attached Figure Description

[0018] Figure 1 This is a first structural diagram of the bottom shell of a toolbox for a new energy vehicle according to the present invention; Figure 2 This is a second structural diagram of the bottom shell of a toolbox for a new energy vehicle according to the present invention; Figure 3 This is a first structural diagram of the connection and installation of the bottom shell of a toolbox for a new energy vehicle and its positioning fixture according to the present invention. Figure 4 This is a first structural diagram of the connection and installation of the bottom shell of a toolbox for a new energy vehicle and its positioning fixture according to the present invention. Figure 5 This is a structural diagram of a positioning fixture for the bottom shell of a toolbox for new energy vehicles according to this utility model.

[0019] In the diagram: 1. Housing; 11. Side block; 111. Positioning groove; 12. End frame; 121. Positioning hole A; 122. Connecting claw; 13. Positioning hole B; 2. Positioning fixture; 21. Crossbar; 22. Reinforcing rod; 23. Side bar; 231. Positioning strip; 24. Vertical shaft; 241. Limit bolt; 25. Positioning shaft. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] like Figures 1-3 As shown, a toolbox bottom shell for a new energy vehicle includes a shell 1. A side block 11 is fixedly connected to the inner side wall of the shell 1 near the middle position. End brackets 12 are symmetrically welded to the middle positions of both ends inside the shell 1. The side block 11 and the two end brackets 12 are distributed in a triangular structure. Positioning holes B13 are opened on the surface of the shell 1 near the corners, and the corners of the shell 1 are all designed with a chamfered structure. The end face of the side block 11 is bent and extends out of the side wall of the housing 1. A positioning groove 111 is provided near the end face of the side block 11. The side block 11 adopts a bent structure and extends out of the side wall of the housing 1, which not only increases the connection contact area between the side block 11 and the housing 1 and improves the structural strength, but also forms an auxiliary limit with the external structure through the extended part. The positioning groove 111 provides a positioning reference for the subsequent precise cooperation with the positioning fixture, ensuring accurate correspondence during positioning and avoiding misalignment. Both end frames 12 have positioning holes A121 in the middle. Both end frames 12 are equipped with connecting claws 122 at the connection points with the housing 1. The connecting claws 122 are arranged in an arc-shaped bending structure. The positioning holes A121 serve as the core positioning structure at the end frames 12, providing a precise insertion and mating position for the positioning shaft of the positioning fixture, ensuring the reliability of positioning. The arc-shaped bending structure of the connecting claws 122 can disperse the stress at the connection points between the end frames 12 and the housing 1, preventing the connection points from breaking due to vibrations during vehicle operation. At the same time, it enhances the fixing stability of the end frames 12 inside the housing 1. Combined with the triangular distribution structure formed by the side blocks 11, it further improves the structural rigidity of the entire bottom shell.

[0022] like Figure 4 and Figure 5As shown, a positioning fixture 2 for the bottom shell of a toolbox for a new energy vehicle includes a crossbar 21. A reinforcing rod 22 and a side rod 23 are fixedly connected to one side of the middle part and the bottom of the crossbar 21, respectively. The reinforcing rod 22 is L-shaped, and the top of the vertical side of the reinforcing rod 22 is tightly abutted against the top of the inner shell 1. The top of the vertical side of the L-shaped reinforcing rod 22 abuts against the top of the inner shell 1 to form a vertical support, which can effectively offset the vertical force on the shell 1 during assembly or when the car is driving, prevent the shell 1 from deforming vertically, and at the same time reinforce the structure of the positioning fixture 2 itself, ensuring that the positioning fixture remains stable during use and avoiding the positioning effect due to the deformation of the fixture. The side rod 23 has an L-shaped structure and its end face is provided with a positioning strip 231 that is adapted to the positioning groove 111. The positioning strip 231 is adapted to be inserted into the interior of the positioning groove 111. The L-shaped side rod 23 can flexibly adapt to the side wall shape of the shell 1. The positioning strip 231 on its end face forms a concave-convex fit with the positioning groove 111 of the side block 11. Using the positioning principle of the mortise and tenon structure, the displacement of the bottom shell in the horizontal direction is restricted. At the same time, it cooperates with the positioning function of the vertical axis 24 and the positioning axis 25 to form multi-dimensional positioning and improve the positioning accuracy. Vertical shafts 24 are inserted near both ends of the crossbar 21, and the end faces of the vertical shafts 24 are adapted to be inserted into the positioning holes B13. Limiting bolts 241 are threadedly connected to the crossbar 21 near the vertical shafts 24. The end faces of the crossbar 21 are arranged in a Z-shape, and the positioning shaft 25 is perpendicular to the vertical shaft 24. The limiting bolts 241 can fix the position of the vertical shaft 24 by thread locking after the vertical shaft 24 is inserted into the positioning hole B13, preventing the vertical shaft 24 from loosening or falling off during the positioning process and ensuring the reliability of the positioning. The Z-shaped structure of the crossbar 21 can optimize the force distribution of the tooling. At the same time, the perpendicular distribution of the positioning shaft 25 and the vertical shaft 24 makes the positioning force complementary in the horizontal and vertical directions, further restricting the degree of freedom of the bottom shell and achieving precise positioning. Positioning shafts 25 are installed at both ends of the crossbar 21, and the end face of the positioning shaft 25 is adapted to be inserted into the corresponding positioning hole A121.

[0023] When using this utility model, firstly, align the vertical shaft 24 of the positioning fixture 2 with the positioning hole B13 of the housing 1 and insert it, then lock the position of the vertical shaft 24 with the limiting bolt 241; then insert the positioning shaft 25 into the positioning hole A121 of the end frame 12, and at the same time, fit the positioning strip 231 of the side rod 23 into the positioning groove 111 of the side block 11. At this time, the top of the vertical side of the reinforcing rod 22 is tightly fitted with the top of the inner shell of the housing 1, completing the all-round positioning of the bottom shell, and the subsequent assembly operation can be carried out.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A toolbox bottom shell for a new energy vehicle, comprising a shell (1), characterized in that: The inner sidewall of the housing (1) is fixedly connected to a side block (11) near the middle position. The two ends of the housing (1) are symmetrically welded to the middle position. The side block (11) and the two end brackets (12) are distributed in a triangular structure. The surface of the housing (1) is provided with positioning holes B (13) near the corners. The corners of the housing (1) are all designed with chamfered structure.

2. The bottom shell of a toolbox for new energy vehicles according to claim 1, characterized in that: The end face of the side block (11) is bent and extends out of the side wall of the housing (1). The side block (11) has a positioning groove (111) near the end face.

3. The bottom shell of a toolbox for a new energy vehicle according to claim 2, characterized in that: The two end frames (12) are provided with positioning holes A (121) in the middle. The two end frames (12) are provided with connecting claws (122) at the connection points with the housing (1), and the connecting claws (122) are provided with an arc-shaped bending structure.

4. A positioning fixture (2) applied to the bottom shell of a toolbox for a new energy vehicle as described in any one of claims 1-3, comprising a crossbar (21), characterized in that: A reinforcing rod (22) and a side rod (23) are fixedly connected to one side of the middle part and the bottom of the crossbar (21), respectively. A vertical shaft (24) is inserted near both ends of the crossbar (21), and the end face of the vertical shaft (24) is adapted to be inserted into the positioning hole B (13). The crossbar (21) is equipped with a positioning shaft (25) at both ends, and the end face of the positioning shaft (25) is adapted to be inserted into the corresponding positioning hole A (121).

5. The positioning fixture (2) for the bottom shell of the new energy vehicle toolbox according to claim 4, characterized in that: The side rod (23) is designed in an L-shape and its end face is provided with a positioning strip (231) that is adapted to the positioning groove (111). The positioning strip (231) is adapted to be inserted into the interior of the positioning groove (111).

6. The positioning fixture (2) for the bottom shell of a new energy vehicle toolbox according to claim 4, characterized in that: The reinforcing rod (22) is an L-shaped structure, and the top of the vertical side of the reinforcing rod (22) is in close contact with the inner top of the shell (1).

7. The positioning fixture (2) for the bottom shell of the new energy vehicle toolbox according to claim 4, characterized in that: The horizontal bar (21) is threaded with a limit bolt (241) near the vertical axis (24). The end face of the horizontal bar (21) is set in a Z-shaped structure, and the positioning shaft (25) is distributed perpendicular to the vertical axis (24).

Images