Locking mechanism of new energy heavy truck battery replacing bracket and new energy heavy truck

Abstract

The invention provides a locking mechanism of a new energy heavy truck battery replacement bracket and a new energy heavy truck. The locking mechanism comprises a mounting frame, a hook claw and a transmission assembly. One end of the claw is rotationally connected with the mounting frame, and the other end of the claw faces the clamping part of the battery pack. The transmission assembly comprises a lifting part and a transmission connecting rod, the lifting part is movably connected with the mounting frame, one end of the transmission connecting rod is hinged to the lifting part, and the other end of the transmission connecting rod is hinged to the hook claw. And when the lifting piece moves up and down, the transmission connecting rod drives the hook claw to rotate so as to hook the clamping part or separate from the clamping part. According to the locking mechanism of the battery replacing bracket of the new energy heavy truck and the new energy heavy truck, the hook claw is driven to rotate through the transmission assembly, when the hook claw rotates to the clamping part in lap joint with the battery pack, the battery pack and the mounting base are connected or separated, locking or unlocking of the battery pack is achieved, the structure is simple, operation is convenient, and practicability is high. And the battery replacement efficiency of the new energy heavy truck is also effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of battery swapping equipment for new energy heavy trucks, and in particular, a locking mechanism for a battery swapping bracket for new energy heavy trucks and a new energy heavy truck. Background Technology

[0002] With the rapid development of the new energy industry and the country's requirements for green energy and energy conservation, vehicles powered by new energy sources are gradually gaining public acceptance. In some operational scenarios with short transportation distances and fixed routes, pure electric heavy-duty trucks are gradually occupying an important position in the market due to their zero emissions and lower fuel costs.

[0003] However, due to the large battery pack capacity of pure electric heavy-duty trucks and limitations in battery charging efficiency, battery swapping is more suitable for certain high-efficiency transportation scenarios. Currently, there are three main battery swapping modes for electric heavy-duty trucks: top-mounted battery swapping, single-side integrated battery swapping, and double-side integrated battery swapping. All three methods require fixing the battery pack to the battery swapping bracket on the chassis. To prevent the connection between the battery pack and the charging connector at the vehicle end from loosening due to bumps during vehicle operation, a locking mechanism needs to be added to the battery swapping bracket. Top-mounted battery swapping, as a market-proven method, has a relatively simple positioning method, can leverage the driver's technical advantages, simplify the control system, and reduce costs. It is a simple, low-cost, and feasible battery swapping solution, and was the earliest commercialized battery swapping solution. However, due to its low level of automation and complex battery pack locking actions, its battery swapping efficiency is relatively low. Summary of the Invention

[0004] In view of the above, it is necessary to provide a simple and easy-to-operate locking mechanism for the battery swapping bracket of a new energy heavy-duty truck and a new energy heavy-duty truck.

[0005] The locking mechanism of the battery swapping bracket for new energy heavy-duty trucks includes: Mounting rack; The hook has one end rotatably connected to the mounting bracket, and the other end faces the snap-fit ​​part of the battery pack; The transmission assembly includes a lifting component and a transmission link, wherein the lifting component is movably connected to the mounting frame, and one end of the transmission link is hinged to the lifting component and the other end is hinged to the hook. When the lifting component moves up and down, it drives the hook to rotate via the transmission link, thereby engaging with or disengaging from the locking part.

[0006] According to the locking mechanism of the new energy heavy truck battery swapping bracket, the hook has an opening corresponding to the snap-fit ​​part.

[0007] According to the locking mechanism of the new energy heavy truck battery swapping bracket, the hook has a "C" shaped structure and the opening faces away from the lifting component.

[0008] According to the locking mechanism of the new energy heavy truck battery swapping bracket, the cross-sectional area of ​​the hook decreases from the end connected to the mounting bracket to the other end.

[0009] According to the locking mechanism of the new energy heavy truck battery swapping bracket, the transmission linkage mechanism also includes multiple guide pins, which connect the lifting component and the mounting frame and are used to guide the lifting component to move relative to the mounting frame.

[0010] The locking mechanism of the new energy heavy truck battery swapping bracket further includes a drive assembly for driving the lifting component to move, the drive assembly comprising: Rotating wheels rotatably connect to the mounting bracket; A drive linkage is rotatably connected at one end to the rotating wheel and at the other end to the lifting component. When the rotating wheel rotates, the drive linkage drives the lifting component to move.

[0011] According to the locking mechanism of the battery swapping bracket for new energy heavy trucks, the driving assembly further includes a rotating handle, which extends along the radial direction of the rotating wheel and is connected to the rotation center of the rotating wheel for driving the rotating wheel to rotate.

[0012] The locking mechanism of the new energy heavy truck battery swapping bracket includes a pair of hooks and a transmission link, wherein the pair of hooks are rotatably connected to the transmission link and connected to both ends of the lifting component.

[0013] A new energy heavy-duty truck includes a vehicle body, a battery swapping bracket and a battery pack disposed on the vehicle body, and also includes the locking mechanism. The mounting bracket is connected to the battery swapping bracket, and the battery pack is connected to the battery swapping bracket through the locking mechanism.

[0014] According to the aforementioned new energy heavy truck, it includes a synchronous shaft and multiple locking mechanisms, wherein the synchronous shaft is connected to the rotating wheels of the multiple locking mechanisms.

[0015] Compared to existing technologies, the locking mechanism of the aforementioned new energy heavy-duty truck battery swapping bracket and the new energy heavy-duty truck drive the hook to rotate through the transmission component. When the hook rotates to the snap-fit ​​part that connects to the battery pack, it connects or disconnects the battery pack from the mounting base, thereby locking or unlocking the battery pack. The structure is simple, the operation is convenient, and it also effectively improves the battery swapping efficiency of new energy heavy-duty trucks. Attached Figure Description

[0016] To more clearly illustrate the specific implementation methods, the accompanying drawings used in the description of the implementation methods will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the battery pack and locking mechanism.

[0018] Figure 2 This is a schematic diagram of the battery pack structure.

[0019] Figure 3 This is a schematic diagram of the locking mechanism.

[0020] Figure 4 This is a structural diagram of the mounting bracket, hook, and transmission assembly.

[0021] Figure 5 This is a schematic diagram of the driving component.

[0022] Explanation of key component symbols: 10-Battery pack; 11-Snap-fit ​​part; 20-Mounting bracket; 30-Hook; 40-Synchronous shaft; 50-Rotating handle; 51-Rotating wheel; 60-Lifting component; 61-Guide pin; 62-Transmission link; 63-Drive link.

[0023] The following detailed embodiments will further illustrate this disclosure in conjunction with the above-described drawings. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this disclosure; the described embodiments are merely a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0026] In various embodiments, for ease of description and not limitation of this disclosure, the term "connection" used in the patent application specification and claims is not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0027] Figure 1 This is a structural diagram of the battery pack 10 and the locking mechanism. (See diagram below.) Figure 1 As shown, the new energy heavy-duty truck includes a vehicle body (not shown in the figure), a battery swapping bracket (not shown in the figure) disposed on the vehicle body, a battery pack 10, and a locking mechanism. The battery swapping bracket is used to carry the battery pack 10, and the locking mechanism is used to lock or unlock the connection between the battery pack 10 and the battery bracket. The battery pack 10 is connected to the battery swapping bracket through the locking mechanism.

[0028] In this embodiment, the new energy heavy truck includes a synchronous shaft 40 and multiple locking mechanisms. The synchronous shaft 40 is connected to the multiple locking mechanisms and is used to synchronize the locking and unlocking actions of the multiple locking mechanisms.

[0029] Figure 2 This is a structural diagram of battery pack 10. (See diagram below.) Figure 2 As shown, the battery pack 10 has latching portions 11 on both sides of its bottom. The latching portions 11 extend from the side wall of the bottom of the battery pack 10 toward the center, with a certain gap between them and the bottom surface of the battery pack 10. In this way, the locking mechanism can engage with the latching portion above the gap to lock, or retract from the gap to unlock.

[0030] Figure 3 This is a schematic diagram of the locking mechanism. Figure 4 This is a structural diagram of the mounting bracket 20, the hook 30, and the transmission assembly. (See diagram below.) Figure 3 and Figure 4 As shown, the locking mechanism of the battery swapping bracket for new energy heavy-duty trucks includes a mounting frame 20, hooks 30, a transmission assembly, and a drive assembly. In this embodiment, the locking mechanism includes a pair of hooks 30 and a transmission link 62. The pair of hooks 30 are rotatably connected to the transmission link 62 at both ends of the lifting member 60. During operation, the mounting frame 20 drives the hooks 30 at both ends to extend or retract toward the locking part 11 via the transmission link 62 at both ends, thereby locking or unlocking the battery pack 10.

[0031] The mounting bracket 20 connects to the battery swapping bracket and is used to mount other components of the locking mechanism. One end of the hook 30 is rotatably connected to the mounting bracket 20, and the other end faces the latching portion 11 of the battery pack 10. Specifically, the hook 30 has a "C"-shaped structure with an opening in the middle corresponding to the latching portion 11, the opening facing away from the lifting member 60. The cross-sectional area of ​​the hook 30 decreases from the end connected to the mounting bracket 20 towards the other end.

[0032] The transmission assembly includes a lifting member 60 and a transmission link 62. The lifting member 60 is movably connected to the mounting frame 20. Specifically, the transmission link 62 mechanism also includes multiple guide pins 61, which connect the lifting member 60 and the mounting frame 20 and guide the lifting member 60 to move relative to the mounting frame 20. One end of the transmission link 62 is hinged to the lifting member 60, and the other end is hinged to the hook 30. There is a certain distance between the connection point of the transmission link 62 and the hook 30 and the connection point of the hook 30 and the mounting frame 20. When the lifting member 60 moves up and down, the transmission link 62 drives the hook 30 to rotate, thereby engaging or disengaging from the locking part 11.

[0033] Figure 5 This is a schematic diagram of the driver component. For example... Figure 4 and Figure 5 As shown, the drive assembly is used to drive the lifting member 60 to move up and down. The drive assembly includes a rotating wheel 51, a drive linkage 63, and a rotating handle 50. The rotating wheel 51 is rotatably connected to the mounting bracket 20 via bearings. Specifically, the rotating wheel 51 is located on one side of the mounting bracket 20, and the rotating handle 50 is connected to the other side. The rotating handle 50 extends radially along the rotating wheel 51 and is connected to the rotation center of the rotating wheel 51, for driving the rotating wheel 51 to rotate. In some other embodiments, the rotating wheel 51 can also be connected to a drive motor to achieve locking and unlocking operations through electronic control.

[0034] One end of the drive linkage 63 is rotatably connected to the position of the rotating wheel 51 off-center from the rotation center, and the other end is rotatably connected to the lifting member 60. When the rotating wheel 51 rotates, the lifting member 60 is moved by the drive linkage 63.

[0035] When locking is required, rotating the handle 50 drives the lifting component 60 to rise under the action of the guide pin 61 via the drive linkage 63. The lifting component 60 drives the hook 30 to rotate via the transmission linkage 62. The end of the hook 30 engages with the snap-fit ​​part 11 of the battery pack 10 to achieve the locking action with the battery pack 10. When unlocking is required, rotating the handle 50 causes the lifting component 60 to move downwards, which in turn causes the hook 30 to move in the opposite direction and disengage from the latching part 11 of the battery pack 10.

[0036] The locking mechanism of the aforementioned new energy heavy truck battery swapping bracket and the new energy heavy truck drive the hook 30 to rotate through the transmission component. When the hook 30 rotates to the latching part 11 that engages the battery pack 10, it connects or disconnects the battery pack 10 from the mounting base, thereby locking or unlocking the battery pack 10. The structure is simple, the operation is convenient, and it also effectively improves the battery swapping efficiency of new energy heavy trucks.

[0037] In the several specific embodiments provided in this disclosure, it will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this disclosure. Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Terms such as "first," "second," etc., are used to denote names and do not indicate any particular order.

[0038] The above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this disclosure should not depart from the spirit and scope of the technical solutions of this disclosure.

Claims

1. A locking mechanism for a battery swapping bracket for new energy heavy-duty trucks, characterized in that, include: Mounting rack; The hook has one end rotatably connected to the mounting bracket, and the other end faces the snap-fit ​​part of the battery pack; The transmission assembly includes a lifting component and a transmission link, wherein the lifting component is movably connected to the mounting frame, and one end of the transmission link is hinged to the lifting component and the other end is hinged to the hook. When the lifting component moves up and down, it drives the hook to rotate via the transmission link, thereby engaging with or disengaging from the locking part.

2. The locking mechanism of the new energy heavy truck battery swapping bracket as described in claim 1, characterized in that, The hook has an opening corresponding to the locking part.

3. The locking mechanism of the new energy heavy truck battery swapping bracket as described in claim 2, characterized in that, The hook has a "C" shaped structure, and the opening faces away from the lifting component.

4. The locking mechanism of the new energy heavy truck battery swapping bracket as described in claim 3, characterized in that, The area of ​​the cross-section of the hook decreases from the end connected to the mounting bracket to the other end.

5. The locking mechanism of the new energy heavy truck battery swapping bracket as described in claim 1, characterized in that, The transmission linkage mechanism also includes multiple guide pins, which connect the lifting component and the mounting frame and guide the lifting component to move relative to the mounting frame.

6. The locking mechanism of the new energy heavy truck battery swapping bracket as described in claim 5, characterized in that, It also includes a drive assembly for moving the lifting member, the drive assembly comprising: Rotating wheels rotatably connect to the mounting bracket; A drive linkage is rotatably connected at one end to the rotating wheel and at the other end to the lifting component. When the rotating wheel rotates, the drive linkage drives the lifting component to move.

7. The locking mechanism of the new energy heavy truck battery swapping bracket as described in claim 6, characterized in that, The drive assembly further includes a rotating handle that extends radially along the rotating wheel and is connected to the rotation center of the rotating wheel for driving the rotating wheel to rotate.

8. The locking mechanism of the new energy heavy truck battery swapping bracket as described in claim 7, characterized in that, It includes a pair of hooks and a transmission link, wherein the pair of hooks are rotatably connected to the transmission link at both ends of the lifting component.

9. A new energy heavy-duty truck, comprising a vehicle body, a battery swapping bracket disposed on the vehicle body, and a battery pack, characterized in that, It also includes a locking mechanism as described in any one of claims 6-8, wherein the mounting bracket is connected to the battery swapping tray, and the battery pack is connected to the battery swapping tray via the locking mechanism.

10. The new energy heavy truck as described in claim 9, characterized in that, It includes a synchronous shaft and multiple locking mechanisms, the synchronous shaft being connected to the rotating wheels of the multiple locking mechanisms.

Images