Rapid battery replacing device and method for new energy commercial vehicle

Abstract

The invention discloses a new energy commercial vehicle rapid battery replacing device which comprises a mounting frame, a battery bracket and a vehicle frame, a battery is wrapped in the battery bracket, the battery bracket is installed at the bottom of the vehicle frame, a bottom plate is installed at the bottom of the vehicle frame, the battery bracket is connected with the vehicle frame through a pushing device, and the pushing device comprises a supporting plate used for supporting the vehicle frame. The supporting plate is installed on the side pushing plate, the side pushing plate is installed on the base through a lifting mechanism, the side pushing plate enables the frame to be installed at the bottom end of the battery bracket through a rolling mechanism, and a limiting mechanism is arranged between the frame and the battery bracket; and the bottom end of the frame is in locking connection with the battery bracket through a bolt. According to the battery replacing device, the limiting mechanism is arranged, accurate positioning and clamping of the battery can be achieved through cooperation of the inserting block and the inserting opening and the action of the clamping side plate and the first elastic piece, the problems that in the prior art, battery positioning is not accurate, and installation is not firm are effectively solved, and the safety and stability of the battery replacing device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery replacement devices, and specifically to a rapid battery replacement device and method for new energy commercial vehicles. Background Art

[0002] With the increasing requirements for environmental protection and the continuous development of new energy technologies, new energy commercial vehicles have been increasingly widely used in logistics, transportation and other fields.

[0003] However, the range and charging time issues of new energy commercial vehicles have always been key factors restricting their large-scale promotion.

[0004] Compared with passenger cars, commercial vehicles are used more frequently and have longer mileage, and the need for rapid energy replenishment is more urgent.

[0005] Traditional charging methods, even fast charging, take a long time to fully charge the battery, which greatly reduces the operating efficiency of commercial vehicles and increases operating costs.

[0006] As a way to quickly replenish energy for new energy vehicles, battery swapping technology has huge development potential.

[0007] By replacing the battery with a fully charged one, the commercial vehicle can restore its driving range in a short time and continue to operate.

[0008] However, the current existing battery replacement devices and methods still have many problems in practical applications. The battery positioning during the battery replacement process is inaccurate, which can easily lead to loose battery installation and safety hazards.

[0009] Therefore, we proposed a new energy commercial vehicle rapid battery replacement device and method to solve the above problems. Summary of the Invention

[0010] The present invention aims to solve the problems in the prior art and proposes the following technical solutions:

[0011] A new energy commercial vehicle rapid battery replacement device includes a mounting frame, a battery bracket and a frame. The battery bracket is wrapped with a battery, which is mounted on the bottom of the frame. A base plate is mounted on the bottom of the frame. The battery bracket is connected and installed to the frame through a pushing device. The pushing device includes a support plate for supporting the frame. The support plate is mounted on a side push plate, which is mounted on a base through a lifting mechanism. The side push plate enables the frame to be mounted on the bottom end of the battery bracket through a rolling mechanism. A limiting mechanism is provided between the frame and the battery bracket; the bottom end of the frame is locked and connected to the battery bracket through bolts.

[0012] As a preferred embodiment of the above technical solution, the lifting mechanism includes a threaded sleeve installed on the side wall of the side push plate, the threaded sleeve is threadedly connected to the screw rod, the screw rod is installed in the second slot, the bottom end of the second slot is installed on the motor, the side wall of the threaded sleeve is connected to the second slider, and the second slider slides in the second slide rail, the second slide rail is opened in the second slot, and the second slot is opened on the base.

[0013] The side push plate can be raised or lowered by rotating the lead screw driven by the motor, thereby adjusting the height of the frame to match the battery bracket.

[0014] As a preferred embodiment of the above technical solution, the rolling mechanism includes third slots equidistantly defined on the side thrust plate, with second elastic members connected to the third slots. The ends of the second elastic members are connected to the fixed frame, and balls are rollingly embedded in the inner wall of the fixed frame, with the outer walls of the balls rolling against the outer wall of the battery bracket. The rolling mechanism also includes third sliders mounted on the side walls of the fixed frame, and each of the third sliders slides within third rails, which are symmetrically defined within the third slots. When the vehicle frame is pushed toward the battery bracket, the balls contact the outer wall of the battery bracket, reducing friction. At the same time, the second elastic member cushions and resets the fixed frame, ensuring rolling stability.

[0015] As a preferred embodiment of the above technical solution, the limiting mechanism includes a plug-in interface opened at the bottom end of the battery bracket, and a plug-in block is inserted into the plug-in interface, the bottom end of the plug-in block is installed on the vehicle frame, the outer wall of the plug-in block is clamped by the clamping side plate, the two sets of clamping side plates are connected by a first elastic member, the outer walls of the clamping side plates are all installed with movable inner plates, the outer sides of the movable inner plates are all inserted into the first slot, the first slot is symmetrically opened on the inner wall of the plug-in interface, the inner wall of the first slot is symmetrically opened with a first slide rail, and the first slide rail is slidably connected with a first slider, and the first slider is installed on the outer wall of the movable inner plate.

[0016] When the plug-in block is inserted into the plug-in interface, under the action of the first elastic member, the clamping side plate clamps the plug-in block to achieve precise positioning and firm installation.

[0017] The present invention also provides a battery replacement method based on the above-mentioned new energy commercial vehicle rapid battery replacement device, comprising placing a battery bracket with a battery to be replaced in a designated position; starting a lifting mechanism, and driving a screw rod to rotate through a motor, so that a threaded sleeve drives a side push plate to rise, and lifts the vehicle frame to a position that matches the battery bracket; using a rolling mechanism to push the vehicle frame close to the battery bracket, and during the rolling process, the ball contacts the outer wall of the battery bracket to reduce friction; when the vehicle frame is close to the battery bracket, the plug-in block is inserted into the plug-in port, and under the action of a first elastic member, the clamping side plate clamps the plug-in block to achieve positioning; the vehicle frame and the battery bracket are locked and connected by bolts; after completing the battery replacement, the above steps are reversed to remove the replaced battery bracket.

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

[0019] (1) The present invention provides a limiting mechanism, utilizes the cooperation between the plug-in block and the plug-in interface, and the function of the clamping side plate and the first elastic member, thereby achieving accurate positioning and clamping of the battery, effectively solving the problems of inaccurate battery positioning and loose installation in the prior art, and improving the safety and stability of the battery replacement device;

[0020] (2) The setting of the rolling mechanism enables the ball to roll in contact with the outer wall of the battery bracket when the vehicle frame approaches the battery bracket, which greatly reduces friction, reduces resistance during the battery replacement process, and improves the battery replacement efficiency. At the same time, the cooperation between the second elastic member and the third slider and the third slide rail ensures the smoothness of the rolling process.

[0021] (3) The lifting mechanism can accurately adjust the height of the frame through the cooperation of components such as the motor, screw rod and threaded sleeve, so that it can adapt to battery brackets of different specifications, thereby improving the versatility of the battery replacement device.

[0022] (4) The battery replacement method of the present invention is simple to operate and has a clear process. Through the collaborative work of multiple mechanisms, it realizes the rapid and safe replacement of batteries of new energy commercial vehicles, effectively solves the problems of cruising range and charging time of new energy commercial vehicles, improves the operating efficiency of commercial vehicles, and reduces operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a top view structure provided by an embodiment of the present invention is shown;

[0024] Figure 2 The embodiment of the present invention shown provides Figure 1 A schematic diagram of the internal structure of the battery bracket and the frame when installed;

[0025] Figure 3 The embodiment of the present invention shown provides Figure 2 A schematic diagram of the partial structure of the middle frame and the support plate from an upward perspective;

[0026] Figure 4 The embodiment of the present invention shown provides Figure 2 A in the middle is an enlarged structural diagram;

[0027] Figure 5 The embodiment of the present invention shown provides Figure 2 Enlarged structural diagram at point B in the middle.

[0028] Legend:

[0029] 1. Mounting frame; 2. Battery bracket; 3. Vehicle frame; 4. Bottom plate; 5. Plug-in block; 6. Plug port; 7. Clamping side plate; 8. First elastic member; 9. Movable inner plate; 10. First slot; 11. First slider; 12. First slide rail; 13. Support plate; 14. Side push plate; 15. Cushion; 16. Threaded sleeve; 17. Screw; 18. Second slot; 19. Motor; 20. Second slide rail; 21. Second slider; 22. Base; 23. Bolt; 24. Ball bearing; 25. Fixed frame; 26. Third slider; 27. Third slide rail; 28. Second elastic member; 29. ​​Third slot. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] like Figure 1-Figure 5 As shown, in an embodiment of the present invention: a rapid battery replacement device for new energy commercial vehicles, the operator first places the battery bracket 2 with the battery to be replaced steadily in the preset installation area of ​​the battery replacement device. The area is positioned using positioning marks to ensure the accurate position of the battery bracket 2, laying the foundation for subsequent precise docking.

[0032] Next, the lifting mechanism is activated. Specifically, the operator issues a command through the battery exchange device's control system, driving motor 19 to begin operation. The output shaft of motor 19 drives screw 17 to rotate. Because threaded sleeve 16 and screw 17 are threaded together, when screw 17 rotates, threaded sleeve 16 will move along the axial direction of screw 17. At the same time, a second slider 21 connected to the side wall of threaded sleeve 16 slides within a second slide rail 20. The second slide rail 20 guides and limits the second slider 21, ensuring that threaded sleeve 16 can only move smoothly along the axial direction of screw 17 without deviation or shaking. In this way, threaded sleeve 16 drives the side thrust plate 14, the support plate 13 mounted on the side thrust plate 14, and the frame 3 to rise synchronously. During the ascent process, the operator can monitor and adjust the speed and number of rotations of motor 19 in real time through the control system according to the actual height of the battery bracket 2, thereby precisely controlling the ascent height of the frame 3 to a docking position compatible with the battery bracket 2. Generally speaking, the rotation speed of the motor 19 can be adjusted within the range of 50-200 rpm according to actual needs to ensure that the frame 3 rises smoothly without causing impact due to excessive speed.

[0033] After the vehicle frame 3 rises to the appropriate position, the rolling mechanism is used to push the vehicle frame 3 closer to the battery bracket 2. At this time, the operator starts the power device that pushes the vehicle frame 3, which can be an electric push rod or a hydraulic push rod, etc., not shown in the figure. The power device pushes the side thrust plate 14 forward. The fixed frame 25 connected to the second elastic member 28 in the third slot 29 on the side thrust plate 14 moves accordingly, and the balls 24 embedded in the inner wall of the fixed frame 25 roll and contact the outer wall of the battery bracket 2. During the contact process, the balls 24 will roll on the outer wall of the battery bracket 2, greatly reducing the friction when the vehicle frame 3 moves. At the same time, the third slider 26 on the side wall of the fixed frame 25 slides in the third slide rail 27, and the third slide rail 27 guides and limits the third slider 26 to ensure that the fixed frame 25 will not tilt or get stuck during the movement, so that the fixed frame 25 can stably follow the movement of the side thrust plate 14. The second elastic member 28 acts as a buffer in this process. When the frame 3 encounters a small obstacle or unevenness during movement, the second elastic member 28 can undergo elastic deformation to absorb the impact force and avoid damage to the battery bracket 2 and the frame 3. After the obstacle is eliminated, the second elastic member 28 can reset the fixed frame 25 to ensure the normal operation of the rolling mechanism.

[0034] As the vehicle frame 3 gradually approaches the battery bracket 2, the plug-in block 5 on the vehicle frame 3 begins to be inserted into the plug-in port 6 at the bottom end of the battery bracket 2. As the plug-in block 5 goes deeper, the first elastic member 8 between the two sets of clamping side panels 7 in the plug-in port 6 is compressed. The elastic force generated by the first elastic member 8 causes the clamping side panels 7 to move inward, thereby clamping the plug-in block 5. The movable inner panel 9 installed on the outer wall of the clamping side panel 7 moves in the first slot 10, and the first slider 11 on the outer side of the movable inner panel 9 slides in the first slide rail 12. The cooperation between the first slide rail 12 and the first slider 11 ensures the smooth movement of the movable inner panel 9, so that the clamping side panel 7 can stably clamp the plug-in block 5 and achieve precise positioning. During the clamping process, the operator can use a pressure sensor (not shown in the figure) to monitor the clamping force in real time by installing it at the contact point between the clamping side plate 7 and the plug-in block 5. When the clamping force reaches a preset value, generally 50-100N, which can be adjusted according to the battery weight and installation requirements, it indicates that the plug-in block 5 has been firmly clamped.

[0035] Finally, the frame 3 and battery bracket 2 are locked together using bolts 23. The operator uses a tool such as an electric wrench to tighten bolts 23 to the specified torque, typically 30-50 N·m. This torque can be adjusted based on bolt specifications and materials to ensure a secure connection between the frame 3 and battery bracket 2 and prevent the battery bracket 2 from loosening while the vehicle is in motion.

[0036] When the new energy commercial vehicle needs to replace the battery again, the operator follows the reverse order.

[0037] First, use an electric wrench to loosen bolts 23. Then, activate the power unit that pushes the frame 3 to separate it from the battery holder 2. During the separation process, the rolling mechanism also serves to reduce friction and ensure smooth separation. Next, activate the motor 19 of the lifting mechanism, causing the screw 17 to rotate in the opposite direction, driving the frame 3 down to its initial position. Finally, remove the replaced battery holder 2 from the battery replacement device, completing the entire battery replacement process.

[0038] During the entire battery replacement process, if any abnormal situation occurs, such as abnormal operation of motor 19 or the clamping force does not reach the preset value, the control system of the battery replacement device will immediately issue an alarm and stop the corresponding operation so that the operator can check and troubleshoot in time to ensure the safety and reliability of the battery replacement process.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A new energy commercial vehicle rapid battery replacement device, characterized in that: The invention comprises an installation frame (1), a battery bracket (2) and a vehicle frame (3), wherein the battery bracket (2) contains a battery, the battery bracket (2) is mounted on the bottom of the vehicle frame (3), a bottom plate (4) is mounted on the bottom of the vehicle frame (3), the battery bracket (2) is connected and mounted with the vehicle frame (3) via a pushing device, the pushing device comprises a support plate (13) for supporting the vehicle frame (3), the support plate (13) is mounted on a side push plate (14), the side push plate (14) is mounted on a base (22) via a lifting mechanism, the side push plate (14) enables the vehicle frame (3) to be mounted on the bottom end of the battery bracket (2) via a rolling mechanism, a limiting mechanism is provided between the vehicle frame (3) and the battery bracket (2); the bottom end of the vehicle frame (3) is locked and connected with the battery bracket (2) via a bolt (23).

2. The new energy commercial vehicle rapid battery replacement device according to claim 1 is characterized in that: The lifting mechanism includes a threaded sleeve (16) installed on the side wall of the side push plate (14), the threaded sleeve (16) is threadedly connected to the screw rod (17), the screw rod (17) is installed in the second slot (18), the bottom end of the second slot (18) is installed on the motor (19), the side wall of the threaded sleeve (16) is connected to the second slider (21), and the second slider (21) slides in the second slide rail (20), the second slide rail (20) is opened in the second slot (18), and the second slot (18) is opened on the base (22).

3. The rapid battery replacement device for new energy commercial vehicles according to claim 1 is characterized in that: The rolling mechanism includes a third slot (29) equidistantly provided on the side push plate (14), and a second elastic member (28) is connected in the third slot (29), and the end of the second elastic member (28) is connected to the fixed frame (25), and a ball (24) is rollingly embedded in the inner wall of the fixed frame (25), and the outer wall of the ball (24) rolls against the outer wall of the battery bracket (2); the rolling mechanism also includes a third slider (26) installed on the side wall of the fixed frame (25), and the third slider (26) slides in the third slide rail (27), and the third slide rail (27) is symmetrically provided in the third slot (29).

4. The new energy commercial vehicle rapid battery replacement device according to claim 1, characterized in that: The limiting mechanism includes a plug-in interface (6) provided at the bottom end of the battery bracket (2), and a plug-in block (5) is plugged into the plug-in interface (6), the bottom end of the plug-in block (5) is mounted on the vehicle frame (3), the outer wall of the plug-in block (5) is clamped by a clamping side plate (7), the two sets of clamping side plates (7) are connected by a first elastic member (8), the outer walls of the clamping side plates (7) are all installed with movable inner plates (9), the outer sides of the movable inner plates (9) are all plugged into the first slot (10), the first slot (10) is symmetrically provided on the inner wall of the plug-in interface (6), the inner wall of the first slot (10) is symmetrically provided with a first slide rail (12), and the first slide rail (12) is slidably connected with a first slider (11), and the first slider (11) is all installed on the outer wall of the movable inner plate (9).

5. A battery replacement method based on the fast battery replacement device for new energy commercial vehicles according to any one of claims 1 to 4, characterized in that: The following steps are involved: Place the battery tray (2) with the battery to be replaced in the designated location; The lifting mechanism is started, and the motor (19) drives the screw rod (17) to rotate, so that the threaded sleeve (16) drives the side push plate (14) to rise, and the frame (3) is raised to a position adapted to the battery bracket (2); The vehicle frame (3) is pushed close to the battery bracket (2) by using a rolling mechanism, and during the rolling process, the balls (24) come into contact with the outer wall of the battery bracket (2) to reduce friction; When the vehicle frame (3) is close to the battery bracket (2), the plug-in block (5) is inserted into the plug-in interface (6), and under the action of the first elastic member (8), the clamping side plate (7) clamps the plug-in block (5) to achieve position limiting; The vehicle frame (3) and the battery bracket (2) are locked and connected via bolts (23).

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