Battery box bin cover

Abstract

The utility model discloses a battery box bin cover, and relates to the technical field of battery box parts. The bin cover comprises a bin cover body, the bin cover body is rotationally installed on a connecting base through a hinge, a metal plate compressed spring is further arranged between the connecting base and the hinge, the hinge comprises a hinge body, a variable-pitch face is arranged on the hinge body and abuts against the metal plate compressed spring, and the larger the opening angle of the bin cover body is, the larger the deformation amount of the metal plate compressed spring extruded by the variable-pitch face is. A lock catch is further arranged at the upper end of the bin cover body in a sliding mode, and the bin cover body and the frame tube are locked or unlocked through vertical movement of the lock catch. Through the combined use of the hinge body with the variable-pitch surface and the sheet metal pressure spring, the opening and closing process of the bin cover main body is more stable and smoother, the bin cover main body is prevented from suddenly rotating and falling when being opened, the impact force is reduced, the comfort of a user in the using process is improved, and the variable-pitch surface and the sheet metal pressure spring are still in a tight abutting state in a locking state; and noise generated by shaking of the cabin cover main body during vehicle running can be eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery box parts, in particular to a battery box compartment cover. Background Art

[0002] In the design of electric vehicles, electric bicycles and similar electric vehicles, the battery box cover is a key component that protects the battery pack from external environmental influences. Its design not only affects the safety and stability of the battery, but also directly affects the user experience. Traditional battery box cover designs often have problems such as inconvenient opening, loose closing, and complex and easily damaged locking mechanisms. Especially during the frequent opening and closing process, the stability and durability of the cover have become technical problems that need to be solved urgently.

[0003] Specifically, traditional battery box covers mostly use simple mechanical structures for opening, closing and locking, such as direct screw fixation or simple snap-on design. After long-term use, this design is prone to problems such as loose screws and snap failure, resulting in the cover being unable to close tightly, thereby affecting the battery's waterproof and dustproof performance. At the same time, the cover that lacks a buffer mechanism often generates greater noise and impact when opening and closing, which not only affects the user experience, but may also cause damage to the battery box and surrounding components.

[0004] In addition, the design of traditional locking mechanisms is often more complicated, requiring users to perform multiple steps to complete locking or unlocking, which not only increases the difficulty of use for users, but also reduces the convenience of use. Especially in emergency situations, complex locking mechanisms may delay users' access to the battery box, thereby posing a safety hazard.

[0005] Based on this, the applicant proposed a battery box compartment cover to solve the above technical problems. Utility Model Content

[0006] The utility model aims at the deficiencies in the prior art and provides a battery box compartment cover to solve the above technical problems.

[0007] The utility model solves the problem through the following technical solutions:

[0008] A battery box compartment cover includes a compartment cover body, which is rotatably mounted on a connecting seat via a hinge, a sheet metal compression spring is further provided between the connecting seat and the hinge, the hinge includes a hinge body, a variable pitch surface is provided on the hinge body, the variable pitch surface abuts against the sheet metal compression spring, the greater the opening angle of the compartment cover body, the greater the deformation of the sheet metal compression spring caused by the variable pitch surface, a lock buckle is further slidably provided on the upper end of the compartment cover body, and the compartment cover body is locked or unlocked with the frame tube by the up and down movement of the lock buckle.

[0009] Preferably, the pitch-varying surface comprises a curved surface whose cross-sectional edge is an involute.

[0010] Preferably, a connecting block is provided on the lower side of the bin cover body, and the connecting block is inserted into the hinge body and fixed by a plurality of screws.

[0011] Preferably, the hinge body is rotatably connected to the connecting seat via an axle pin, and connecting ears are provided at both ends of the sheet metal compression spring, and the connecting ears are sleeved on the axle pin.

[0012] Preferably, a spring leaf is provided in the middle of the sheet metal compression spring, and the spring leaf abuts against the variable distance surface.

[0013] Preferably, the lock includes a sliding member, a mounting groove is provided at the upper end of the compartment cover body, guide grooves are symmetrically provided on both sides of the mounting groove, and the sliding member is provided in the mounting groove and slides along the guide groove through a machine screw.

[0014] Preferably, a mounting hole is provided transversely through the sliding member, a spring is provided in the mounting hole, balls are provided at both ends of the spring, and the balls are matched and connected with limiting recesses provided on both sides of the mounting groove.

[0015] Preferably, a clamping groove is provided at the upper end of the sliding member, and the clamping groove is used to be clamped and fixed with the tube wall of the frame tube.

[0016] Preferably, there are two pairs of limiting recesses distributed up and down. When the ball is engaged with the limiting recess located above, the locking groove is engaged with the tube wall of the frame tube, thereby locking the compartment cover body and the frame tube. When the ball is engaged with the limiting recess located below, the locking groove is disengaged from the tube wall of the frame tube, thereby unlocking the compartment cover body and the frame tube.

[0017] Preferably, sealing strips are provided on both sides of the bin cover body.

[0018] The beneficial effects of the present invention are:

[0019] 1. Enhanced User Experience: The combination of a variable-pitch hinge and a sheet metal compression spring allows for smoother opening and closing of the cover, preventing sudden rotation and falling when the cover is opened, reducing impact and enhancing user comfort. When locked, the variable-pitch hinge and the sheet metal compression spring maintain close contact, eliminating noise caused by the cover shaking while driving. Furthermore, the sliding latch simplifies locking and unlocking, allowing users to access the battery compartment more quickly and conveniently.

[0020] 2. Enhanced stability and durability: A sheet metal compression spring acts as a buffer, effectively absorbing impact during the opening and closing of the hatch, reducing wear on the hatch and surrounding components, thereby extending the hatch's service life. Furthermore, the secure, slotted connection between the latch and the frame tube ensures the hatch's stability when locked, preventing accidental opening due to vibration or external forces.

[0021] 3. Improved sealing performance: Sealing strips on both sides of the battery compartment cover effectively prevent the intrusion of external impurities such as water and dust, ensuring a clean and dry environment inside the battery compartment. This is of great significance for extending the service life of the battery pack and ensuring the safe operation of electric vehicles.

[0022] 4. Simplified structure and reduced costs: Compared to traditional, complex locking mechanisms, this design utilizes a simpler and more efficient lock and slot combination, reducing production costs and improving assembly efficiency. It also reduces the number and variety of parts, lowering maintenance complexity and costs.

[0023] 5. Enhanced safety: In an emergency, users can quickly and easily open the main cover to inspect or repair the battery pack. This rapid response capability helps reduce the risk of safety accidents caused by battery failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying any creative work.

[0025] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0026] Figure 2 It is an exploded view of the three-dimensional structure of the utility model.

[0027] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A.

[0028] Figure 4 yes Figure 2 A partial enlarged schematic diagram of point B.

[0029] Figure 5 It is a three-dimensional structural sectional view of the utility model.

[0030] Figure 6 yes Figure 5A partial enlarged schematic diagram of point C.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the utility model in a buckled state with a frame tube.

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the utility model and the frame tube in the opened state.

[0033] In the figure: 1. Bin cover body, 11. Guide groove, 12. Limit groove, 2. Lock buckle, 21. Sliding part, 22. Machine screw, 23. Spring, 24. Ball, 3. Connecting seat, 4. Hinge body, 41. Variable pitch surface, 5. Axle pin, 6. Sheet metal compression spring, 61. Spring, 7. Screw. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments described in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1:

[0035] like Figures 1 to 8 As shown, a battery box compartment cover of the present invention includes a compartment cover body 1, which is rotatably mounted on a connecting seat 3 through a hinge, and a sheet metal compression spring 6 is further provided between the connecting seat 3 and the hinge. The hinge includes a hinge body 4, and a variable pitch surface 41 is provided on the hinge body 4, and the variable pitch surface 41 abuts against the sheet metal compression spring 6. The greater the opening angle of the compartment cover body 1, the greater the deformation of the sheet metal compression spring 6 caused by the variable pitch surface 41. A lock buckle 2 is also slidably provided on the upper end of the compartment cover body 1, and the compartment cover body 1 is locked or unlocked with the frame tube by the up and down movement of the lock buckle 2.

[0036] By combining the hinge body 4 with the variable pitch surface 41 and the sheet metal compression spring 6, the opening and closing process of the compartment cover body 1 becomes smoother and smoother, preventing the compartment cover body 1 from suddenly rotating and falling when opened, reducing the impact force, and improving the user's comfort during use; at the same time, the design of the sliding lock 2 simplifies the locking and unlocking operation steps, allowing users to access the battery box more quickly and conveniently.

[0037] A connecting block is provided on the lower side of the bin cover body 1, and the connecting block is fixed by a plurality of screws 7 after being inserted into the hinge body 4. The hinge body 4 is rotatably connected to the connecting seat 3 through the axle pin 5, and connecting ears are provided at both ends of the sheet metal compression spring 6, and the connecting ears are sleeved on the axle pin 5.

[0038] A spring leaf 61 is provided in the middle of the sheet metal compression spring 6, and the spring leaf 61 abuts against the distance-changing surface 41. In the locked state, the distance-changing surface 41 and the sheet metal compression spring 6 are still in a tight abutment state, which can eliminate the noise generated by the shaking of the compartment cover body 1 when the vehicle is driving.

[0039] The sheet metal compression spring 6 serves as a buffer element, which can effectively absorb the impact force during the opening and closing process of the bin cover body 1, reduce the wear of the bin cover body 1 and surrounding components, and thus extend the service life of the bin cover body 1.

[0040] The lock buckle 2 includes a sliding member 21, and a mounting groove is provided at the upper end of the compartment cover body 1. Guide grooves 11 are symmetrically provided on both sides of the mounting groove. The sliding member 21 is arranged in the mounting groove and slides along the guide groove 11 through a machine screw 22. A mounting hole is horizontally passed through the sliding member 21, and a spring 23 is provided in the mounting hole. Balls 24 are provided at both ends of the spring 23. The balls 24 are engaged with the limiting grooves 12 provided on both sides of the mounting groove. A clamping groove is provided at the upper end of the sliding member 21, and the clamping groove is used to be clamped and fixed with the tube wall of the frame tube. There are two pairs of limiting grooves 12 and they are distributed up and down. When the balls 24 are engaged with the limiting grooves 12 located above, the clamping grooves are engaged with the tube wall of the frame tube to lock the compartment cover body 1 with the frame tube. When the balls 24 are engaged with the limiting grooves 12 located below, the clamping grooves are separated from the tube wall of the frame tube to unlock the compartment cover body 1 with the frame tube.

[0041] Compared with the traditional complex locking mechanism, this design adopts a simpler and more efficient lock buckle 2 and card slot matching method, which not only reduces production costs but also improves assembly efficiency. At the same time, it reduces the number and types of parts, and reduces the difficulty and cost of maintenance. In an emergency, the user can quickly and easily open the compartment cover body 1 to inspect or repair the battery pack. This rapid response capability helps to reduce the risk of safety accidents caused by battery failure. In addition, the card slot connection design between the lock buckle 2 and the frame tube ensures the stability of the compartment cover body 1 in the locked state and prevents accidental opening due to vibration or external force.

[0042] Sealing strips are provided on both sides of the compartment cover body 1. The sealing strips provided on both sides of the compartment cover body 1 effectively prevent the intrusion of external impurities such as water and dust, and ensure the cleanliness and dryness of the internal environment of the battery box. This is of great significance for improving the service life of the battery pack and ensuring the safe operation of electric vehicles.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and scope of equivalents of the claims be encompassed within the present invention. Any reference numerals in the claims should not be construed as limiting the claim to which they relate.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A battery box cover, comprising a cover body (1), characterized in that: The bin cover body (1) is rotatably mounted on the connecting seat (3) via a hinge, and a sheet metal compression spring (6) is further provided between the connecting seat (3) and the hinge. The hinge comprises a hinge body (4), and a variable distance surface (41) is provided on the hinge body (4). The variable distance surface (41) abuts against the sheet metal compression spring (6). The greater the opening angle of the bin cover body (1), the greater the deformation of the sheet metal compression spring (6) caused by the variable distance surface (41). A lock buckle (2) is further slidably provided on the upper end of the bin cover body (1), and the bin cover body (1) is locked or unlocked with the frame tube by the up and down movement of the lock buckle (2).

2. The battery compartment cover according to claim 1, characterized in that: A connecting block is provided on the lower side of the bin cover body (1), and the connecting block is inserted into the hinge body (4) and fixed by a plurality of screws (7).

3. The battery compartment cover according to claim 1, characterized in that: The hinge body (4) is rotatably connected to the connecting seat (3) via an axle pin (5); connecting ears are provided at both ends of the sheet metal compression spring (6), and the connecting ears are sleeved on the axle pin (5).

4. The battery compartment cover according to claim 1, characterized in that: A spring leaf (61) is provided in the middle of the sheet metal compression spring (6), and the spring leaf (61) abuts against the pitch-changing surface (41).

5. The battery compartment cover according to claim 1, characterized in that: The lock buckle (2) includes a sliding member (21), an installation groove is provided at the upper end of the bin cover body (1), and guide grooves (11) are symmetrically provided on both sides of the installation groove. The sliding member (21) is arranged in the installation groove and slides along the guide groove (11) through a machine screw (22).

6. The battery compartment cover according to claim 5, characterized in that: The sliding member (21) is provided with a mounting hole extending transversely therethrough, a spring (23) is provided in the mounting hole, balls (24) are provided at both ends of the spring (23), and the balls (24) are connected in cooperation with the limiting grooves (12) provided on both sides of the mounting groove.

7. The battery compartment cover according to claim 6, characterized in that: The upper end of the sliding member (21) is provided with a clamping groove, and the clamping groove is used for clamping and fixing with the tube wall of the frame tube.

8. The battery compartment cover according to claim 7, characterized in that: There are two pairs of the limiting grooves (12) distributed in an upper and lower direction. When the ball (24) is engaged with the limiting groove (12) located above, the clamping groove is engaged with the tube wall of the frame tube, thereby locking the compartment cover body (1) with the frame tube. When the ball (24) is engaged with the limiting groove (12) located below, the clamping groove is separated from the tube wall of the frame tube, thereby unlocking the compartment cover body (1) with the frame tube.

9. The battery compartment cover according to claim 1, characterized in that: Sealing strips are provided on both sides of the bin cover body (1).

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