New energy automobile battery pack replacement device
By employing automatic exchange technology of insert arms and brackets in the battery pack replacement device for new energy vehicles, combined with the cleaning function of the airflow component, the problems of cumbersome and safety risks in existing battery replacement methods are solved, achieving fast, efficient and safe battery replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-13
- Publication Date
- 2026-05-12
AI Technical Summary
Existing battery replacement methods for new energy vehicles are cumbersome, time-consuming, and pose risks of battery wear and safety. In particular, the side-mounted battery swapping process requires repeated positioning and temporary placement of the old battery, which increases operational complexity and safety hazards.
By using the insert arms, lifting components, and guide components on the frame, the old and new batteries are automatically exchanged through the lifting and lowering of the insert arms and the alternating movement of the brackets. Combined with the airflow components, the battery compartment is cleaned, reducing steps and improving efficiency.
It enables rapid battery pack replacement, reduces equipment energy consumption and manufacturing costs, improves battery swapping efficiency, ensures the cleanliness of the battery compartment, simplifies the operation process, and reduces safety risks.
Smart Images
Figure CN122008943A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of new energy vehicle technology, and in particular to a battery pack replacement device for new energy vehicles. Background Technology
[0002] In the field of battery swapping technology for new energy buses, existing battery replacement methods generally adopt a step-by-step operation.
[0003] Taking side-loading battery swapping as an example, the process typically involves the swapping equipment first completely removing the depleted old battery from the vehicle and temporarily placing it on the ground or a dedicated charging rack. Then, the equipment moves to the fully charged battery storage area, retrieves the new battery, and reinserts it into the vehicle's battery compartment. This sequential "remove first, then insert" operation mode has significant drawbacks. Not only are the swapping steps cumbersome and time-consuming, but the equipment also requires repeated positioning during battery transport, demanding extremely high precision from the operator and increasing the risk of wear and tear on the battery connectors due to misalignment. Furthermore, temporarily placing the old battery, weighing hundreds of kilograms, on the ground increases the risk of impact damage and operational safety hazards. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a battery pack replacement device for new energy vehicles.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] Including the frame, and the swingarm mounted on the frame, it also includes:
[0007] A lifting assembly for battery placement is mounted on the vehicle frame. The lifting assembly includes a first bracket for storing old batteries and a second bracket for storing new batteries, both mounted on the vehicle frame. Initially, the first and second brackets are positioned vertically. When the battery is replaced by the insertion arm, the positions of the second and first brackets alternate.
[0008] The frame is provided with a guide assembly for guiding the movement of the second bracket and the first bracket. The guide assembly includes an annular track and a horizontal track fixedly mounted on the frame. The second bracket is slidably mounted in the annular track, and the first bracket is slidably mounted in the horizontal track. When the second bracket slides to a certain position, the second bracket moves into the horizontal track.
[0009] Preferably, the guide assembly further includes an annular groove disposed on the annular track, a slider slidably disposed in the annular groove, and a ball bearing disposed between the slider and the groove wall, the second bracket being rotatably disposed on the slider, and a balancing component for keeping the second bracket horizontal being disposed between the second bracket and the slider.
[0010] Preferably, the balancing assembly includes an annular rack fixedly mounted on an annular track, and a drive gear meshing with the annular rack is disposed between the slider and the second bracket.
[0011] Preferably, the annular track is further provided with a moving component for pushing the second bracket to move; the moving component includes an annular airbag disposed in the annular groove, and one end of the annular airbag is fixedly disposed on the slider. An elastic sheet is disposed inside the annular airbag. A sliding plate is slidably disposed inside the second bracket and is slidably disposed on the slider. A transverse airbag is fixedly disposed at one end of the sliding plate. A return spring is sleeved on the outside of the transverse airbag. An electromagnetic lock is disposed in the annular groove for locking the slider.
[0012] Preferably, a first airflow assembly is provided inside the insert arm, and the first airflow assembly communicates with the annular airbag.
[0013] Preferably, the first airflow assembly includes a first airflow section disposed within the insert arm, the first airflow section communicating with the annular airbag, and an airflow plate disposed on one side of the insert arm, the airflow plate communicating with the first airflow section.
[0014] Preferably, the first bracket is provided with a second airflow assembly, the second airflow assembly includes a second airflow section disposed in the first bracket, and the second airflow section has the same structure as the first airflow section. A support plate is disposed on the second airflow section, and a plurality of pressure rods are fixedly disposed on the support plate. The ends of the pressure rods extend to the outside of the first bracket. An energy storage airbag that communicates with the pressure rods is disposed on the inner side of the insert arm. The energy storage airbag is located below the first airflow section.
[0015] Preferably, the second airflow section includes a piston tube disposed in the first bracket, the piston tube communicating with the energy storage airbag and the transverse airbag respectively, the piston tube in the first airflow section communicating with the annular airbag and the airflow plate respectively, the energy storage airbag communicating with the airflow plate, and a flow control component disposed at the communication point, a piston rod slidably disposed in the piston tube, and an elastic element sleeved on the piston rod.
[0016] Preferably, the flow control assembly includes a vertical rack fixedly disposed inside the insert arm and fixedly disposed on the piston rod. A fixed cylinder is fixedly disposed inside the insert arm and communicates with the energy storage airbag. A rotating sleeve is rotatably disposed inside the fixed cylinder, and air holes are provided on both the rotating sleeve and the fixed cylinder. A one-way gear that meshes with the vertical rack is provided on the rotating sleeve.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] The lifting action of the insertion arm to raise the old battery drives the first airflow component to work, causing the annular airbag to expand and push the second bracket to slide along the annular track. Combined with the horizontal movement of the second bracket and the alternation of the first bracket, the old and new batteries are automatically exchanged, eliminating the need to remove the old battery to the ground, reducing the number of steps in the battery swapping process and significantly improving efficiency. Furthermore, when the insertion arm lowers to place the new battery, it drives the piston rod of the first airflow component to reset, switching the original suction mode to a blowing mode. With the assistance of the energy storage airbag, a pulsed strong airflow is formed, achieving a secondary deep cleaning of the battery compartment through "blowing and suction," effectively ensuring the cleanliness of the battery compartment. By utilizing the lifting and lowering action of the insertion arm, the movement of the bracket, the suction and exhaust of the airflow, and the energy storage airbag during the battery swapping process, the equipment achieves the goal of completing the entire battery swapping and cleaning process without an additional power source, reducing energy consumption and manufacturing costs. It also eliminates the need to remove the old battery, place it on the ground, and then retrieve the new battery, enabling rapid battery pack replacement and further improving the equipment's replacement efficiency, making the process more convenient and faster. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the right-side structure proposed in this invention;
[0020] Figure 2 This is a schematic diagram of the left side structure proposed in this invention;
[0021] Figure 3 This is a schematic diagram of a partial front structure proposed in this invention;
[0022] Figure 4 This is a schematic diagram of a partial rear structure proposed in this invention;
[0023] Figure 5 This is a schematic diagram of the partial right-side structure proposed in this invention. Figure 1 ;
[0024] Figure 6 This is a schematic diagram of the partial right-side structure proposed in this invention. Figure 2 ;
[0025] Figure 7 This is a schematic diagram of the internal structure of the flow control component proposed in this invention;
[0026] Figure 8 This is a schematic diagram of the internal structure of the partial front side proposed in this invention;
[0027] Figure 9 This is a schematic diagram of the workflow proposed in this invention.
[0028] In the diagram: 1. Frame; 2. Insertion arm; 3. Lifting assembly; 31. First bracket; 32. Second bracket; 4. Guide assembly; 41. Circular track; 42. Slider; 43. Horizontal track; 5. Balancing assembly; 51. Circular rack; 52. Drive gear; 6. Moving assembly; 61. Circular airbag; 62. Lateral airbag; 63. Return spring; 64. Electromagnetic lock; 7. First airflow assembly; 71. First airflow section; 72. Airflow plate; 8. Second airflow assembly; 81. Second airflow section; 82. Support plate; 83. Pressure rod; 84. Energy storage airbag; 9. Flow control assembly; 91. Vertical rack; 92. Fixed cylinder; 93. Rotating sleeve; 94. Air hole; 95. One-way gear. Detailed Implementation
[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0030] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.
[0031] Reference Figures 1-9 A battery pack replacement device for a new energy vehicle includes a frame 1 and an insert arm 2 mounted on the frame 1, and further includes:
[0032] A lifting assembly 3 for placing batteries is installed on the frame 1. The lifting assembly 3 includes a first bracket 31 for storing old batteries and a second bracket 32 for storing new batteries. The first bracket 31 and the second bracket 32 are initially positioned vertically. When the insert arm 2 replaces the battery, the positions of the second bracket 32 and the first bracket 31 alternate.
[0033] The frame 1 is equipped with a guide assembly 4 for guiding the movement of the second bracket 32 and the first bracket 31. The guide assembly 4 includes an annular track 41 and a horizontal track 43 fixedly mounted on the frame 1. The second bracket 32 is slidably mounted in the annular track 41, and the first bracket 31 is slidably mounted in the horizontal track 43. When the second bracket 32 slides to a certain position, it moves into the annular track 41. Initially, the first bracket 31 and the second bracket 32 are arranged vertically, and the new battery is located on the second bracket 32. By moving the frame 1, the device is moved to the bus, and the plug arm 2 is controlled to move laterally into the vehicle. Then, the plug arm 2 is raised to lift the old battery inside the vehicle, and then the plug arm 2 is retracted to remove the old battery. The old battery is removed from the vehicle. When the insertion arm 2 lifts the old battery, the second bracket 32 slides within the circular track 41. When the insertion arm 2 is lifted to the appropriate position, the first bracket 31 and the second bracket 32 are on the same horizontal plane. When the old battery is removed and placed on the first bracket 31, the second bracket 32 moves laterally within the horizontal track 43, simultaneously pushing the first bracket 31 to move. When the second bracket 32 moves to the appropriate position, the new battery is located in front of the insertion arm 2. At this time, the new battery can be placed inside the vehicle through the insertion arm 2, thus completing the battery replacement. This reduces the steps required for equipment replacement, eliminating the need to remove the old battery, place it on the ground, and then insert the new battery. This achieves rapid replacement of old and new batteries and improves the efficiency of battery swapping.
[0034] Preferred, Reference Figure 3 The guide assembly 4 also includes an annular groove disposed on the annular track 41. A slider 42 is slidably disposed in the annular groove, and a ball bearing is disposed between the slider 42 and the groove wall. The second bracket 32 is rotatably disposed on the slider 42, and a balancing assembly 5 for keeping the second bracket 32 horizontal is disposed between the second bracket 32 and the slider 42. When the old battery is lifted, the slider 42 pushes the second bracket 32 to move in the annular groove until the second bracket 32 moves to the same horizontal position as the first bracket 31, so as to facilitate the replacement of the position between the first bracket 31 and the second bracket 32, and to facilitate the quick insertion of the new battery, thereby completing the replacement.
[0035] Preferred, Reference Figure 3 The balancing component 5 includes an annular rack 51 fixedly mounted on the annular track 41. A drive gear 52 that meshes with the annular rack 51 is provided between the slider 42 and the second bracket 32. When the slider 42 slides in the annular groove, the drive gear 52 rotates along the annular rack 51, keeping the second bracket 32 in a horizontal state. This allows the second bracket 32 to quickly enter the horizontal track 43 when it moves to a horizontal position, enabling rapid replacement of the first bracket 31 and the second bracket 32.
[0036] Preferred, Reference Figure 3 and Figure 4 The annular track 41 is also equipped with a moving component 6 for moving the second bracket 32. The moving component 6 includes an annular airbag 61 disposed in the annular groove, with one end of the annular airbag 61 fixedly disposed on the slider 42. An elastic sheet is disposed inside the annular airbag 61. A sliding plate is slidably disposed inside the second bracket 32, and the sliding plate is slidably disposed on the slider 42. A transverse airbag 62 is fixedly disposed at one end of the sliding plate. A return spring 63 is sleeved on the outer side of the transverse airbag 62. An electromagnetic lock 64 is disposed in the annular groove for locking the slider 42. When the annular airbag 61 inflates, the annular airbag 62 moves in a circular groove. The airbag 61 pushes the slider 42 on one side of the second bracket 32 in a circular motion, which facilitates pushing the second bracket 32 to a horizontal position. The electromagnetic lock 64 limits the slider 42 to keep the second bracket 32 in a horizontal state. When the second bracket 32 is pushed to the horizontal position, since the horizontal airbag 62 is initially inflated, it gradually deflates, while the return spring 63 quickly retracts, causing the second bracket 32 to quickly move closer to the first bracket 31 and push the first bracket 31 to move, so that the second bracket 32 can be moved to the position of the first bracket 31 for easy replacement of the new battery.
[0037] Preferred, Reference Figure 6 and Figure 8 The insert arm 2 is provided with a first airflow component 7, and the first airflow component 7 is in communication with the annular airbag 61. When the first airflow component 7 is squeezed, it can quickly inflate the annular airbag 61, causing it to expand, thereby pushing the slider 42 on one side of the second bracket 32 to move, and then moving the second bracket 32 to a horizontal position to facilitate subsequent parallel movement.
[0038] Preferred, Reference Figure 5 and Figure 6 The first airflow assembly 7 includes a first airflow section 71 disposed within the insert arm 2. The first airflow section 71 communicates with the annular airbag 61. An airflow plate 72 is disposed on one side of the insert arm 2, and the airflow plate 72 communicates with the first airflow section 71. When the first airflow section 71 is squeezed, the gas squeezed out by the first airflow section 71 enters the annular airbag 61, while the negative pressure airflow generated in the first airflow section 71 flows through the airflow plate 72. When the gas flows in the airflow plate 72, it can collect dust in the vehicle battery compartment, thereby keeping the battery compartment clean.
[0039] Preferred, Reference Figure 6 and Figure 8The first bracket 31 contains a second airflow assembly 8, which includes a second airflow section 81 disposed within the first bracket 31. The second airflow section 81 has the same structure as the first airflow section 71. A support plate 82 is disposed on the second airflow section 81, and multiple pressure rods 83 are fixedly disposed on the support plate 82. The ends of the pressure rods 83 extend to the outside of the first bracket 31. An energy storage airbag 84, which communicates with the pressure rods 83, is disposed on the inner side of the insert arm 2. The energy storage airbag 84 is located in the first airflow section 71. On the lower side of section 71, when the old battery is placed on the first bracket 31, the weight of the old battery presses the pressure rod 83, causing the pressure rod 83 to push the support plate 82 down, thereby compressing the second airflow section 81. When the second airflow section 81 is compressed, it can extract the gas in the transverse airbag 62, causing the transverse airbag 62 to move laterally. At the same time, the gas generated by the annular airbag 61 is quickly filled into the energy storage airbag 84, causing the energy storage airbag 84 to expand and store the gas for subsequent use.
[0040] Preferably, the second airflow section 81 includes a piston tube disposed within the first bracket 31, which communicates with the energy storage airbag 84 and the transverse airbag 62 respectively. The piston tube in the first airflow section 71 communicates with the annular airbag 61 and the airflow plate 72 respectively. The energy storage airbag 84 communicates with the airflow plate 72, and a flow control component 9 is disposed at the communication point. A piston rod is slidably disposed inside the piston tube, and an elastic element is sleeved on the piston rod. The working process of the first airflow section 71 and the second airflow section 81 is as follows: when the insertion arm 2 is inserted into both sides of the old battery, the insertion arm 2 is lifted upward. At this time, the first airflow section 71 is working, and the piston rod in the first airflow section 71 descends, causing it to generate suction and exhaust in the piston cylinder, and discharge. Gas enters the annular airbag 61, causing the second bracket 32 to move. The airflow generated by the suction moves through the airflow plate 72. That is to say, during the upward movement of the insertion arm 2, the airflow plate 72 is always suctioning, which can quickly suck up the dust in the battery compartment for the first cleaning of the battery compartment. When the insertion arm 2 places the old battery on the second bracket 32, the insertion arm 2 will descend. At this time, both the first airflow section 71 and the second airflow section 81 will move. First, as the insertion arm 2 descends, the piston rod in the first airflow section 71 will gradually return to its original position. During the return process, the original suction changes to blowing, which can blow out the dust collected in the airflow plate 72. Since the original blowing is connected to the annular airbag 61, in order to ensure the annular airbag 61 The expansion of the air intake disconnects the solenoid valve from the annular airbag 61, allowing gas to enter the piston tube in the first airflow section 71 from the outside, thus achieving gas flow without interfering with the annular airbag 61. When the old battery is placed on the second bracket 32, the piston rod in the second airflow section 81 is compressed and lowered by the pressure rod 83. At this time, the piston cylinder extracts the gas from the transverse airbag 62, and the compressed gas enters the energy storage airbag 84 to expand and store it for later use. When the insertion arm 2 lifts the new battery again, the piston rod in the first airflow section 71 is compressed again. When the new battery is placed in the battery compartment, the insertion arm 2 needs to be separated from the battery. At this time, the gas in the first airflow section 71... As the piston rod gradually resets, it moves upwards, generating gas that blows into the battery compartment, causing dust to rise. Because the airflow holes on the airflow plate 72 are crisscrossed, the upward movement of the piston rod creates a suction-pumping effect on the airflow plate 72, effectively raising and then drawing in dust from the battery compartment. Each piston tube connection is equipped with a solenoid valve, which opens and closes according to airflow requirements. During the piston rod reset process, the flow control component 9 is activated. When the flow control component 9 is activated, it releases gas from the energy storage bladder 84 and discharges it through the airflow plate 72, further enhancing the blowing effect and ensuring dust is raised.
[0041] Preferred, Figure 7The flow control component 9 includes a vertical rack 91 fixedly installed inside the insert arm 2 and fixed to the piston rod. A fixed cylinder 92 is fixedly installed inside the insert arm 2. The fixed cylinder 92 communicates with the energy storage airbag 84. A rotating sleeve 93 is rotatably installed inside the fixed cylinder 92. Both the rotating sleeve 93 and the fixed cylinder 92 are provided with air holes 94. A one-way gear 95 is provided on the rotating sleeve 93, which meshes with the vertical rack 91. Since the one-way gear 95 is one-way, when the piston rod pushes the vertical rack 91 down, it will not drive the one-way gear 95 to rotate. After the new battery is placed, the piston rod returns to its original position and drives the vertical rack 91 up. When the vertical rack 91 rises, it drives the one-way gear 95 to rotate. At this time, the one-way gear 95 controls the rotating sleeve 93 to rotate. When the air hole 94 on the rotating sleeve 93 and the air hole 94 on the fixed cylinder 92 are connected, the gas in the energy storage airbag 84 is discharged, thereby enhancing the dust lifting effect.
[0042] Working principle
[0043] The frame 1 moves to the side of the bus battery compartment, and the insert arm 2 extends laterally into the battery compartment. The insert arm 2 is raised to lift the old battery. During the lifting process of the insert arm 2, the first airflow component 7 inside it works: the piston rod descends, generating suction and exhaust in the piston cylinder. The exhaust enters the annular airbag 61, causing it to expand and push the slider 42 and the second bracket 32 to slide along the annular track 41; at the same time, the suction causes the airflow plate 72 to generate negative pressure in the battery compartment, sucking in and collecting the dust in the compartment.
[0044] When the second bracket 32 moves to the same horizontal position as the first bracket 31, the drive gear 52 meshes with the ring rack 51 to rotate, keeping the second bracket 32 in a horizontal position. When the second bracket 32 moves to the appropriate position, the electromagnetic lock 64 locks the slider 42 to position the second bracket 32. At this time, the transverse airbag 62 is initially inflated, and the return spring 63 inside is stretched. The transverse airbag 62 is connected to the second airflow assembly 8 inside the first bracket 31 through the pipeline. Under the suction action of the second airflow assembly 8, the transverse airbag 62 deflates, the return spring 63 contracts rapidly, and pulls the second bracket 32 to slide along the horizontal track 43 towards the first bracket 31. When the second bracket 32 moves, it pushes the first bracket 31 to move synchronously in the opposite direction, so that the old battery and the new battery on the first bracket 31 complete the position exchange. Specifically, when the insertion arm 2 places the old battery on the first bracket 31, the weight of the old battery pushes the support plate 82 down through the pressure rod 83, causing the piston rod inside the second airflow assembly 8 to descend. During the piston rod's descent, the gas inside the transverse airbag 62 is extracted, accelerating the reset movement of the second bracket 32; simultaneously, the generated compressed gas enters the energy storage airbag 84 for storage.
[0045] The insert arm 2 then lifts the new battery from the second bracket 32, extends it laterally into the battery compartment, and places the new battery inside. As the insert arm 2 descends and separates from the battery, the piston rod of the first airflow assembly 7 returns to its original position and rises. At this time, the original suction state is switched to the blowing state. The airflow generated by the upward movement of the piston rod is blown into the battery compartment through the airflow plate 72, raising the residual dust inside the compartment. At the same time, the piston rod drives the vertical rack 91 to rise, driving the one-way gear 95 to rotate, so that the rotating sleeve 93 aligns and connects with the air hole 94 on the fixed cylinder 92. The high-pressure gas stored in the energy storage bag 84 is released instantly, and the blowing effect is enhanced by the airflow plate 72, blowing away the raised dust. Subsequently, the airflow plate 72 switches to suction mode, sucking in and collecting the floating dust again, completing the secondary deep cleaning of the battery compartment.
[0046] Beneficial effects
[0047] The lifting action of the insert arm 2 to raise the old battery drives the first airflow assembly 7 to work, causing the annular airbag 61 to expand and push the second bracket 32 to slide along the annular track 41. Combined with the horizontal movement of the second bracket 32 and the alternation of the first bracket 31, the old and new batteries are automatically exchanged, eliminating the need to remove the old battery to the ground, reducing the number of steps in the battery swapping process, and significantly improving swapping efficiency. Furthermore, when the insert arm 2 lowers to place the new battery, it drives the piston rod of the first airflow assembly 7 to reset, switching the original suction mode to a blowing mode. With the assistance of the energy storage airbag 84, a pulsed strong airflow is formed, achieving "…" The "blowing and vacuuming" secondary deep cleaning effectively ensures the cleanliness of the battery compartment. By using the lifting and lowering of the plug arm 2, the movement of the bracket, the suction and exhaust of the airflow, and the energy storage and release of the energy storage bag 84 during the battery swapping process, the equipment can complete the entire battery swapping and cleaning process without an additional power source, reducing equipment energy consumption and manufacturing costs. At the same time, it eliminates the need to remove the old battery, place it on the ground, and then retrieve the new battery, enabling rapid battery pack replacement and further improving the equipment's replacement efficiency, making the replacement process more convenient and faster.
[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A battery pack replacement device for a new energy vehicle, comprising a frame (1) and an insert arm (2) disposed on the frame (1): characterized in that, Also includes: A lifting assembly (3) for placing batteries is provided on the frame (1). The lifting assembly (3) includes a first bracket (31) for storing old batteries and a second bracket (32) for storing new batteries, which are provided on the frame (1). The first bracket (31) and the second bracket (32) are initially positioned vertically. When the insert arm (2) replaces the battery, the second bracket (32) and the first bracket (31) are in alternating positions. The frame (1) is provided with a guide assembly (4) for guiding the movement of the second bracket (32) and the first bracket (31). The guide assembly (4) includes an annular track (41) and a horizontal track (43) fixedly mounted on the frame (1). The second bracket (32) is slidably mounted in the annular track (41), and the first bracket (31) is slidably mounted in the horizontal track (43). When the second bracket (32) slides to a certain position, the second bracket (32) moves into the horizontal track (43).
2. The battery pack replacement device for new energy vehicles according to claim 1, characterized in that, The guide assembly (4) further includes an annular groove on the annular track (41), a slider (42) is slidably disposed in the annular groove, and a ball is disposed between the slider (42) and the groove wall. The second bracket (32) is rotatably disposed on the slider (42), and a balancing assembly (5) for keeping the second bracket (32) horizontal is disposed between the second bracket (32) and the slider (42).
3. A battery pack replacement device for new energy vehicles according to claim 2, characterized in that, The balancing assembly (5) includes an annular rack (51) fixedly mounted on an annular track (41), and a drive gear (52) meshing with the annular rack (51) is provided between the slider (42) and the second bracket (32).
4. A new energy vehicle battery pack replacement device according to claim 3, characterized in that, The annular track (41) is also provided with a moving component (6) for pushing the second bracket (32) to move; the moving component (6) includes an annular airbag (61) disposed in the annular groove, and one end of the annular airbag (61) is fixedly disposed on the slider (42). An elastic sheet is disposed inside the annular airbag (61). A sliding plate is slidably disposed inside the second bracket (32), and the sliding plate is slidably disposed on the slider (42). A transverse airbag (62) is fixedly disposed at one end of the sliding plate. A reset spring (63) is sleeved on the outside of the transverse airbag (62). An electromagnetic lock (64) is disposed in the annular groove for locking the slider (42).
5. A battery pack replacement device for new energy vehicles according to claim 4, characterized in that, The insert arm (2) is provided with a first airflow assembly (7), and the first airflow assembly (7) is in communication with the annular airbag (61).
6. A battery pack replacement device for new energy vehicles according to claim 5, characterized in that, The first airflow assembly (7) includes a first airflow section (71) disposed in the insert arm (2), the first airflow section (71) communicating with the annular airbag (61), and an airflow plate (72) disposed on one side of the insert arm (2), and the airflow plate (72) communicating with the first airflow section (71).
7. A new energy vehicle battery pack replacement device according to claim 6, characterized in that, The first bracket (31) is provided with a second airflow assembly (8). The second airflow assembly (8) includes a second airflow section (81) disposed in the first bracket (31). The second airflow section (81) has the same structure as the first airflow section (71). A support plate (82) is disposed on the second airflow section (81). A plurality of pressure rods (83) are fixedly disposed on the support plate (82). The end of the pressure rod (83) extends to the outside of the first bracket (31). An energy storage airbag (84) is disposed on the inner side of the insert arm (2) and communicates with the pressure rod (83). The energy storage airbag (84) is located on the lower side of the first airflow section (71).
8. A battery pack replacement device for a new energy vehicle according to claim 7, characterized in that, The second airflow section (81) includes a piston tube disposed in the first bracket (31). The piston tube is in communication with the energy storage airbag (84) and the transverse airbag (62) respectively. The piston tube in the first airflow section (71) is in communication with the annular airbag (61) and the airflow plate (72) respectively. The energy storage airbag (84) is in communication with the airflow plate (72), and a flow control component (9) is disposed at the connection. A piston rod is slidably disposed in the piston tube, and an elastic element is sleeved on the piston rod.
9. A battery pack replacement device for a new energy vehicle according to claim 8, characterized in that, The flow control assembly (9) includes a vertical rack (91) fixedly disposed inside the insert arm (2) and fixed on the piston rod. A fixed cylinder (92) is fixedly disposed inside the insert arm (2). The fixed cylinder (92) communicates with the energy storage airbag (84). A rotating sleeve (93) is rotatably disposed inside the fixed cylinder (92). Air holes (94) are provided on both the rotating sleeve (93) and the fixed cylinder (92). A one-way gear (95) that meshes with the vertical rack (91) is provided on the rotating sleeve (93).