Electric vehicle battery swap station capable of smoothly replacing battery

Abstract

The application relates to an electric vehicle battery replacement station capable of smoothly replacing batteries, which comprises a device frame body, a lifting frame body capable of lifting is arranged in the device frame body, a first driving mechanism for driving the lifting frame body to lift and drop is arranged at the top of the device frame body, a first battery replacement frame body capable of sliding is arranged in the lifting frame body, a second battery replacement frame body capable of self-rotating is arranged on the first battery replacement frame body, the self-rotation of the second battery replacement frame body is driven through a second driving mechanism arranged on the surface of the first battery replacement frame body, a battery taking and placing mechanism capable of sliding is arranged on the surface of the second battery replacement frame body, and the sliding directions of the first battery replacement frame body and the battery taking and placing mechanism are perpendicular to each other; the application is innovated in the structure of supporting and guiding the taking and placing support frame body; the nested roller design is adopted to realize multidirectional support of the top surface, the bottom surface and the side surface of the sliding support groove, and the limitation that the traditional single roller can only realize unidirectional guiding is broken.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric vehicle battery swap stations, and in particular to an electric vehicle battery swap station capable of stably replacing batteries. BACKGROUND

[0002] A new energy vehicle battery swap station is a facility for providing fast battery replacement services for electric vehicles, which can greatly shorten the energy replenishment time and improve the user experience. The core process of the battery swap station is that after the vehicle is driven into a designated position, the depleted battery is removed and replaced with a full battery through automatic equipment, and the entire process only takes a few minutes. Among them, the telescopic battery taking and placing platform is a key component in the battery replacement process, and its stability directly affects the safety and efficiency of the operation.

[0003] When taking and placing the battery, the telescopic platform needs to accurately dock with the vehicle battery compartment, and any shaking or deviation may cause the battery to collide or not be installed in place, thereby damaging the battery or the vehicle structure. A stable telescopic platform can ensure that the battery remains horizontal during movement. In addition, stable operation can also reduce the wear and tear of mechanical components, prolong the service life of the equipment, and ensure the continuity of the battery replacement process, avoiding time loss due to repeated position adjustments. Therefore, high-precision sensors, stable hydraulic systems, and rigid structural design are necessary conditions for ensuring the stable operation of the platform.

[0004] The battery replacement station for electric vehicles with the authorization announcement number CN112208387B is disclosed, which combines the specification and drawings, and the scheme: completes the battery replacement of the electric vehicle, replaces manual work. At the same time, the sliding seat drives the rotating seat to slide horizontally, and the lifting seat drives the rotating seat to lift, which can remove the full battery from any position on the battery placing rack or place the empty battery on any position on the battery placing rack.

[0005] However, the battery swap station design still has some limitations: 1. The stability of the battery receiving seat is poor during the sliding process on the rotating seat, which directly affects the stability of the battery taking and placing; 2. Since the battery receiving seats are respectively arranged at both ends of the rotating seat, when the battery receiving seat on one side is placing the battery, and the battery receiving seat on the other side is taking the battery, the stress of the two battery supporting seats relative to the rotating seat is poor, which seriously affects the accuracy of the battery replacement; 3. The overall battery replacement device has low integration level, which makes the production and use cost higher; 4. The lifting seat is not stable during lifting, which also brings inconvenience to the battery taking and placing. SUMMARY

[0006] The application mainly aims at the problem of stability of battery receiving seat in the battery swap station, and invents a battery swap station for electric vehicles which can smoothly replace batteries, and innovates the structure of support and guide of the support frame for taking and placing, that is, through the nested roller design, the multidirectional support of the top surface, bottom surface and side surface of the sliding support groove is realized, and the limitation of the traditional single roller which can only be guided in one direction is broken. The third guide roller and the fourth guide roller effectively limit and guide the side surface and the bottom surface of the battery, which can effectively stabilize the attitude of the battery.

[0007] The application aims to realize the following technical scheme: a battery swap station for electric vehicles which can smoothly replace batteries, comprising a device frame, a lifting frame capable of lifting is arranged in the device frame, a first driving mechanism for driving the lifting frame to lift and lower is arranged on the top of the device frame, a first battery swap frame capable of sliding is arranged in the lifting frame, a second battery swap frame capable of rotating is arranged on the first battery swap frame, the rotation of the second battery swap frame is driven by a second driving mechanism arranged on the surface of the first battery swap frame, a battery taking and placing mechanism capable of sliding is arranged on the surface of the second battery swap frame, and the sliding directions of the first battery swap frame and the battery taking and placing mechanism are perpendicular to each other.

[0008] As a preferred, the battery taking and placing mechanism comprises a taking and placing support frame, a first guide wheel assembly, a second guide wheel assembly, a battery grabbing assembly and a third driving mechanism, the inner side of the second battery swap frame is provided with a plurality of first guide wheel assemblies, the two sides of the taking and placing support frame are provided with sliding support grooves, each first guide wheel assembly can simultaneously support and guide each surface inside the sliding support groove, the two ends of the taking and placing support frame are provided with a battery grabbing assembly capable of sliding and a second guide wheel assembly for supporting and guiding the battery, and the sliding of the taking and placing support frame relative to the second battery swap frame is driven by the third driving mechanism.

[0009] As a preferred, each first guide wheel assembly comprises a first roller mounting plate, a first roller support shaft, a first guide roller and a second guide roller, the surface of the first roller mounting plate is provided with a first roller support shaft, the surface of the first roller support shaft is rotatably provided with a first guide roller, the middle part of the first roller support shaft is provided with a cylindrical groove, and the inside of the cylindrical groove is rotatably provided with a second guide roller, the first guide roller is attached to the top surface and the bottom surface of the sliding support groove, and the second guide roller is attached to the side surface of the sliding support groove.

[0010] As preferred, the second guide wheel assembly comprises a first bearing support plate, a second roller support shaft, a third guide roller, a first roller support frame and a fourth guide roller, the two side surfaces of the pick-and-place support frame are provided with the first bearing support plates, the surfaces of the first bearing support plates are provided with a plurality of second roller support shafts, the surfaces of the second roller support shafts are rotatably provided with the third guide rollers, the two side surfaces of the pick-and-place support frame are also provided with the first roller support frames, the interiors of the first roller support frames are rotatably provided with the fourth guide rollers, the axes of the third guide rollers and the fourth guide rollers are perpendicular to each other, the third guide rollers are attached to the side surfaces of the batteries, and the fourth guide rollers are attached to the bottom surfaces of the batteries.

[0011] As preferred, the two side ends of the pick-and-place support frame are provided with a plurality of pin body support plates, the side surfaces of each pin body support plate are provided with a positioning pin, the top of each pin body support plate is provided with a third roller support shaft, and the surface of each third roller support shaft is connected with a fifth guide roller.

[0012] As preferred, the battery grabbing assembly comprises a grabbing support plate, a first guide rail, a first rack plate, a first driving motor, a battery grabbing structure and a first driving gear, the surface of the pick-and-place support frame is also provided with a plurality of first guide rails and first rack plates, the surface of the grabbing support plate is slidingly connected with the first guide rails through sliding blocks, the surface of the grabbing support plate is provided with the first driving motor and the battery grabbing structure, and the end of the first driving motor is provided with the first driving gear which is in transmission connection with the first rack plate.

[0013] As preferred, the third driving mechanism comprises a third driving support plate, a third driving shaft, a second driving motor and a third transmission roller, the inner wall of the second battery replacement frame is provided with a plurality of second rack plates, the middle part of the pick-and-place support frame is provided with the third driving support plate, the surface of the third driving support plate is rotatably provided with the third driving shaft and the second driving motor, the middle part of the third driving shaft and the middle part of the second driving motor are both provided with the third transmission rollers, and adjacent third transmission rollers are connected through transmission belts.

[0014] As preferred, the end of the lifting frame is provided with a second bearing support plate, the surface of each second bearing support plate is rotatably provided with a fourth roller support shaft, and the surface of each fourth roller support shaft is rotatably provided with a sixth guide roller, and each sixth guide roller is attached to the surface of the equipment frame during the lifting process of the lifting frame.

[0015] This arrangement is to realize that the sixth guide roller plays a supporting and guiding role when the lifting frame slides upward relative to the equipment frame, further improving the photoelectric stability during the lifting process.

[0016] As preferred, the first driving mechanism comprises a first gear support frame, a second gear support frame, a second driving gear, a third driving gear, a metal chain, a first driving shaft and a third driving motor, each corner of the top of the equipment frame body is provided with a first gear support frame and each corner of the bottom of the equipment frame body is provided with a second gear support frame, the inside of the first gear support frame is rotatably provided with a plurality of second driving gears, the inside of the second gear support frame is rotatably provided with a third driving gear, the third driving gear and the second driving gear are connected through the metal chain, the adjacent second driving gears are also connected through the metal chain, and the second driving gears located at the two sides of the equipment frame body are also connected through the first driving shaft, the first driving shaft is connected to the third driving motor at the top of the equipment frame body, and the sidewall of the lifting frame body is provided with a plurality of chain limiting blocks, and the metal chain is fixedly connected to the chain limiting blocks.

[0017] As preferred, the second driving mechanism comprises a second driving support plate, a rotating table gear, a fourth driving motor and a fourth driving gear, the second driving support plate is arranged on the surface of the first battery replacement frame body, the surface of the second driving support plate is rotatably provided with a rotating table gear, the bottom of the second driving support plate is provided with a fourth driving motor, the rotating shaft of the fourth driving motor is provided with a fourth driving gear through the surface of the second driving support plate, the fourth driving gear is connected to the rotating table gear, and the bottom of the second battery replacement frame body is fixedly connected to the surface of the rotating table gear.

[0018] The arrangement is to drive the rotating table gear to rotate relative to the surface of the second driving support plate. The rotating table gear drives the entire second battery replacement frame body to rotate and change the angle during rotation.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The structure for supporting and guiding the taking and placing support frame is innovated: the multi-directional support of the top surface, the bottom surface and the side surface of the sliding support groove is realized through the nested roller design, and the limitation of the traditional single roller which can only be guided in one direction is broken. The third guide roller and the fourth guide roller effectively limit and guide the side surface and the bottom surface of the battery, can effectively stabilize the posture of the battery, prevent the battery from deflecting or vibrating during the taking and placing process, and constitute a double protection mechanism.

[0021] The nested design between the first guide roller and the second guide roller also realizes the dispersion of pressure on the double contact surfaces, can still maintain uniform stress when the taking and placing support frame continuously moves outward, avoids the deformation failure of the traditional single roller caused by local overload, breaks through the limitation of the traditional single roller which can only be guided in one direction, and strengthens the stability of the space.

[0022] Compared with the traditional supporting of the taking and placing support frame body by the roller pair, the first guide wheel assembly of the scheme can more accurately support and guide the taking and placing support frame body with fewer wheels, and the production cost is significantly reduced.

[0023] The metal chain between each second driving gear and third driving gear can stably bear stress. Unlike the existing steel wire rope lifting, the metal chain will not have the problem of inaccuracy due to long-term use, and each second driving gear and third driving gear simultaneously rotates, so that the four corners of the lifting frame can bear the same force, improving the lifting accuracy of the lifting frame. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of the present application;

[0025] Figure 2 It is a perspective view of the present application after the second battery replacement frame and the components mounted on the surface thereof are removed;

[0026] Figure 3 It is a perspective view of the second battery replacement frame and the components mounted on the surface thereof of the present application;

[0027] Figure 4 It is a partial enlarged view of the A area in the present application; Figure 3

[0028] Figure 5 It is a partial perspective view of the battery taking and placing mechanism of the present application;

[0029] Figure 6 It is a partial sectional view of the battery grabbing assembly of the present application;

[0030] Figure 7 It is a perspective view of the present application after the second battery replacement frame and the components mounted on the surface thereof are removed;

[0031] Figure 8 It is a partial enlarged view of the B area in the present application; Figure 7

[0032] It is a partial enlarged view of the C area in the present application; Figure 9 Figure 7 It is a perspective view of the second driving mechanism area of the present application.

[0033] Figure 10

[0034] ​​​Marked in the figure: 1, equipment frame; 2, lifting frame; 21, second bearing support plate; 22, fourth roller support shaft; 23, sixth guide roller; 24, chain limiting block; 3, first driving mechanism; 31, first gear support frame; 32, second gear support frame; 33, second driving gear; 34, third driving gear; 35, metal chain; 36, first driving shaft; 37, third driving motor; 4, first battery replacement frame; 5, second battery replacement frame; 51, frame rack plate; 6, second driving mechanism; 61, second driving support plate; 62, rotary table gear; 63, fourth driving motor; 64, fourth driving gear; 7, battery taking and placing mechanism; 71, taking and placing support frame; 72, first guide wheel assembly; 73, second guide wheel assembly; 74, battery grabbing assembly; 75, third driving mechanism; 76, pin support plate; 77, positioning pin; 78, third roller support shaft; 79, fifth guide roller; 711, sliding support groove; 721, first roller mounting plate; 722, first roller support shaft; 723, first guide roller; 724, second guide roller; 725, columnar groove; 731, first bearing support plate; 732, second roller support shaft; 733, third guide roller; 734, first roller support frame; 735, fourth guide roller; 740, grabbing support plate; 741, first guide rail; 742, first rack plate; 743, first driving motor; 744, battery grabbing structure; 745, first driving gear; 751, third driving support plate; 752, third driving shaft; 753, second driving motor; 754, third transmission roller. DETAILED DESCRIPTION

[0035] The application will be further described below in connection with the embodiments shown in the drawings:

[0036] As shown in Figure 1 Figure 7 , Figure 8 and Figure 9 , a battery replacement station for electric vehicles capable of smoothly replacing batteries, comprising an equipment frame 1, the inside of which is provided with a lifting frame 2 capable of lifting, and the top of the equipment frame 1 is provided with a first driving mechanism 3 for driving the lifting frame 2 to rise and fall.

[0037] In the embodiment, the first driving mechanism 3 comprises first gear support frames 31, second gear support frames 32, second driving gears 33, third driving gears 34, metal chains 35, a first driving shaft 36 and a third driving motor 37, each corner of the top of the device frame 1 is provided with a first gear support frame 31 and each corner of the bottom of the device frame 1 is provided with a second gear support frame 32, the inside of the first gear support frame 31 is rotatably provided with a plurality of second driving gears 33, the inside of the second gear support frame 32 is rotatably provided with a third driving gear 34, the third driving gear 34 and the second driving gear 33 are drivingly connected through the metal chain 35, the adjacent second driving gears 33 are also drivingly connected through the metal chain 35, the second driving gears 33 located at the two sides of the device frame 1 are also connected through the first driving shaft 36, the first driving shaft 36 is drivingly connected to the third driving motor 37 at the top of the device frame 1, and the sidewall of the lifting frame 2 is provided with a plurality of chain limiting blocks 24, and the metal chain 35 is fixedly connected to the chain limiting blocks 24.

[0038] For the process of taking and placing the battery, it is obviously particularly important to stably adjust the height of the entire lifting frame 2. The rotating shaft of the third driving motor 37 drives the first driving shaft 36 to rotate during rotation. The first driving shaft 36 drives the second driving gears 33 in the inside of the first gear support frame 31 at the top to rotate. The adjacent second driving gears 33 are drivingly connected through the metal chain 35 to rotate at the same time.

[0039] Since there are two second driving gears 33 in the inside of each first gear support frame 31, one of the second driving gears 33 will rotate during rotation of the other second driving gear 33. Thus, the second driving gears 33 drive the third driving gears 34 to rotate through the metal chain 35.

[0040] Since the chain limiting blocks 24 are installed on the metal chain 35, the metal chain 35 between the second driving gears 33 and the third driving gears 34 can drive the height of the lifting frame 2 to change during reciprocating motion.

[0041] The height of the lifting frame 2 changes with the movement of the metal chain 35, and each metal chain 35 between the second driving gears 33 and the third driving gears 34 can stably bear stress. Unlike the existing steel wire rope lifting, the metal chain 35 will not have the problem of inaccuracy due to long-term use, and each second driving gear 33 and third driving gear 34 realizes simultaneous rotation, and the four corners of the lifting frame 2 can bear the same force, improving the lifting accuracy of the lifting frame 2.

[0042] Please refer to Figure 8The corner end of the lifting frame 2 is provided with a second bearing support plate 21, the surface of each second bearing support plate 21 is rotatably provided with a fourth roller support shaft 22, and the surface of each fourth roller support shaft 22 is rotatably provided with a sixth guide roller 23.

[0043] The sixth guide roller 23 of the lifting frame 2 is attached to the surface of the equipment frame 1 during lifting. The positions of the plurality of sixth guide rollers 23 can effectively position the lifting frame 2 relative to the inside of the equipment frame 1, further improving the lifting accuracy of the lifting frame 2.

[0044] Please continue to refer to Figure 2 、 Figure 3 and Figure 10 , the inside of the lifting frame 2 is provided with a first battery replacement frame 4 that can slide, the first battery replacement frame 4 is provided with a second battery replacement frame 5 that can rotate, and the rotation of the second battery replacement frame 5 is driven by a second driving mechanism 6 provided on the surface of the first battery replacement frame 4.

[0045] As shown in Figure 2 , the first battery replacement frame 4 can slide left and right relative to the surface of the lifting frame 2, and the sliding principle of the first battery replacement frame 4 mainly uses a driving motor to drive a transmission belt to move, which in turn drives the first battery replacement frame 4 to slide left and right.

[0046] In this embodiment, the second driving mechanism 6 includes a second driving support plate 61, a turntable gear 62, a fourth driving motor 63, and a fourth driving gear 64. The second driving support plate 61 is provided on the surface of the first battery replacement frame 4, the surface of the second driving support plate 61 is rotatably provided with the turntable gear 62, the bottom of the second driving support plate 61 is provided with the fourth driving motor 63, the rotating shaft of the fourth driving motor 63 passes through the surface of the second driving support plate 61 and is provided with the fourth driving gear 64, the fourth driving gear 64 is in transmission connection with the turntable gear 62, and the bottom of the second battery replacement frame 5 is fixedly connected to the surface of the turntable gear 62.

[0047] The rotating shaft of the fourth driving motor 63 drives the fourth driving gear 64 to rotate during rotation, and the fourth driving gear 64 drives the turntable gear 62 to rotate relative to the surface of the second driving support plate 61. The turntable gear 62 drives the entire second battery replacement frame 5 to rotate and change the angle during rotation.

[0048] The angle adjustment of the second battery replacement frame 5 is convenient for adjusting the angle to align with the inside of the battery holder after the battery is removed, or adjusting the angle of the battery taken out from the inside of the battery holder to be installed in the car battery compartment during the installation of the battery.

[0049] Please refer to Figure 2 、 Figure 3 and Figure 4 , the surface of the second battery replacement frame 5 is provided with a battery taking and placing mechanism 7 that can slide, the sliding direction of the first battery replacement frame 4 and the battery taking and placing mechanism 7 is perpendicular to each other. The battery taking and placing mechanism 7 can slide forward and backward compared to the surface of the lifting frame 2. The battery taking and placing mechanism 7 can continuously slide out from the inside of the second battery replacement frame 5, thereby facilitating the taking and placing of subsequent batteries.

[0050] In this embodiment, the battery taking and placing mechanism 7 includes a taking and placing support frame 71, a first guide wheel assembly 72, a second guide wheel assembly 73, a battery grabbing assembly 74, and a third driving mechanism 75. The inside of the second battery replacement frame 5 is provided with a plurality of first guide wheel assemblies 72. The two sides of the taking and placing support frame 71 are provided with sliding support grooves 711. Each first guide wheel assembly 72 can simultaneously support and guide each face inside the sliding support groove 711. The two ends of the taking and placing support frame 71 are provided with a battery grabbing assembly 74 that can slide and a second guide wheel assembly 73 for supporting and guiding the battery. The sliding of the taking and placing support frame 71 relative to the second battery replacement frame 5 is driven by the third driving mechanism 75.

[0051] Please refer to Figure 4 , each first guide wheel assembly 72 includes a first roller mounting plate 721, a first roller support shaft 722, a first guide roller 723, and a second guide roller 724. The surface of the first roller mounting plate 721 is provided with a first roller support shaft 722. The surface of the first roller support shaft 722 is rotatably provided with a first guide roller 723. The middle part of the first roller support shaft 722 is provided with a cylindrical groove 725. The inside of the cylindrical groove 725 is rotatably provided with a second guide roller 724. The first guide roller 723 is attached to the top surface and the bottom surface of the sliding support groove 711. The second guide roller 724 is attached to the side surface of the sliding support groove 711.

[0052] The sliding support groove 711 on both sides of the taking and placing support frame 71 is the surface of the plurality of first guide wheel assemblies 72 that are clamped on the inner wall of the second battery replacement frame 5. During the sliding process of the taking and placing support frame 71 relative to the second battery replacement frame 5, the first guide roller 723 effectively supports and guides the top surface and the bottom surface of the sliding support groove 711, and the second guide roller 724 simultaneously effectively supports and guides the side surface of the sliding support groove 711.

[0053] In the guiding process, the first guide roller 723 rotates relative to the first roller support shaft 722, and the second guide roller 724 rotates relative to the limiting shaft inside the columnar groove 725. This nested roller design realizes multi-directional support of the top surface, bottom surface and side surface of the sliding support groove 711, and the nested design between the first guide roller 723 and the second guide roller 724 also realizes dispersion of pressure on the double-layer contact surface, so that uniform stress can be maintained when the taking and placing support frame 71 continuously moves outward, avoiding deformation failure caused by local overload of the traditional single roller, breaking through the limitation of the traditional single roller that can only guide in one direction, and strengthening the stability of the space.

[0054] Furthermore, the synergistic effect of the first guide roller 723 and the second guide roller 724 can offset the lateral yaw moment of the taking and placing support frame 71, so that the taking and placing support frame 71 always moves along a straight path, and the positioning accuracy is improved.

[0055] Please continue to refer to Figure 4 In this embodiment, the second guide wheel assembly 73 includes a first bearing support plate 731, a second roller support shaft 732, a third guide roller 733, a first roller support frame 734 and a fourth guide roller 735. The two side surfaces of the taking and placing support frame 71 are provided with the first bearing support plate 731. The surface of the first bearing support plate 731 is provided with a plurality of second roller support shafts 732. The surface of the second roller support shaft 732 is rotatably provided with a third guide roller 733. The two side surfaces of the taking and placing support frame 71 are also provided with a first roller support frame 734. The inside of the first roller support frame 734 is rotatably provided with a fourth guide roller 735. The axis of the third guide roller 733 and the axis of the fourth guide roller 735 are perpendicular to each other. The third guide roller 733 is attached to the side surface of the battery. The fourth guide roller 735 is attached to the bottom surface of the battery.

[0056] The first bearing support plate 731 is mainly used to increase the height of the two sides of the taking and placing support frame 71, so that the two third guide rollers 733 on the two sides can be attached to the two side surfaces of the top of the battery as much as possible. In addition, the bottom of the battery is attached to the surface of the fourth guide roller 735. The contact area between the fourth guide roller 735 and the bottom surface of the battery is large, which avoids instability during the rolling process of the battery. The third guide roller 733 and the fourth guide roller 735 effectively limit and guide the side surface and the bottom surface of the battery, which can effectively stabilize the attitude of the battery and prevent deflection or vibration during the taking and placing of the battery, thereby improving the accuracy during the battery replacement process.

[0057] In the guiding process, the third guide roller 733 rotates relative to the second roller support shaft 732, and the fourth guide roller 735 rotates relative to the inside of the first roller support frame 734.

[0058] It should be noted that the entire pick-and-place support frame 71 is a rigid frame as a whole, although the battery grabbing assembly 74 is installed on both sides of the entire pick-and-place support frame 71. When the battery grabbing assembly 74 at one end slides to grab or place a battery, the battery grabbing assembly 74 at the other end is still stably clamped on the first guide roller 723 and will not shake, thereby improving the accuracy during battery replacement.

[0059] Please continue to refer to Figure 5 , the two side ends of the pick-and-place support frame 71 are provided with a plurality of pin body support plates 76, the side surface of each pin body support plate 76 is provided with a positioning pin 77, the top of each pin body support plate 76 is provided with a third roller support shaft 78, and the surface of each third roller support shaft 78 is connected with a fifth guide roller 79.

[0060] The positioning pin 77 is inserted into the side of the automobile with the battery compartment to be disassembled, and the positioning pin 77 plays a positioning role. When the positioning pin 77 is inserted into the side wall of the battery compartment to be disassembled on the side of the automobile, the entire pick-and-place support frame 71 is in a fixed state relative to the position between the automobile.

[0061] Please refer to Figure 4 and Figure 5 , when the positioning pin 77 cooperates with the positioning groove of the battery compartment on the side of the automobile, the battery grabbing assembly 74 can slide outward relative to the pick-and-place support frame 71. After the battery grabbing assembly 74 grabs the battery, the battery is dragged to move on the surface of the third guide roller 733 and the fourth guide roller 735 inside the pick-and-place support frame 71.

[0062] For the battery just pulled from the inside of the battery compartment and the battery about to be completely taken out from the inside of the battery compartment, the fifth guide roller 79 on the third roller support shaft 78 can effectively limit and guide the top end of the battery, so as to avoid excessive up-and-down shaking of the battery.

[0063] The synergistic effect among the fifth guide roller 79, the third guide roller 733 and the fourth guide roller 735 significantly reduces the risk of misalignment of the battery during movement, and solves the industry pain point of "insufficient dynamic positioning accuracy" in the battery replacement equipment.

[0064] Please refer to Figure 5 and Figure 6The battery grabbing assembly 74 comprises a grabbing support plate 740, first guide rails 741, a first rack plate 742, a first driving motor 743, a battery grabbing structure 744 and a first driving gear 745. The surface of the taking and placing support frame 71 is also provided with a plurality of first guide rails 741 and a first rack plate 742. The grabbing support plate 740 is slidably connected to the surface of the first guide rails 741 through a sliding block. The surface of the grabbing support plate 740 is provided with the first driving motor 743 and the battery grabbing structure 744. The end of the first driving motor 743 is provided with the first driving gear 745 which is in transmission connection with the first rack plate 742.

[0065] The battery grabbing structure 744 can directly clamp the battery, so as to realize the movement of the battery grabbing structure 744 relative to the surface of the taking and placing support frame 71, thereby facilitating the grabbing of the battery.

[0066] During the rotation of the rotating shaft of the first driving motor 743, the first driving gear 745 is rotated. The reaction force between the first driving gear 745 and the first rack plate 742 is transmitted to the whole grabbing support plate 740, so that the grabbing support plate 740 can move relative to the surface of the taking and placing support frame 71.

[0067] During the movement of the grabbing support plate 740, the first guide rails 741 and the sliding block at the bottom of the grabbing support plate 740 play the roles of support and guidance.

[0068] In the embodiment, the third driving mechanism 75 comprises a third driving support plate 751, a third driving shaft 752, a second driving motor 753 and third transmission rollers 754. The inner wall of the second battery replacing frame 5 is provided with a plurality of second rack plates. The middle part of the taking and placing support frame 71 is provided with the third driving support plate 751. The surface of the third driving support plate 751 is provided with the third driving shaft 752 which can rotate and the second driving motor 753. The middle part of the third driving shaft 752 and the middle part of the second driving motor 753 are both provided with the third transmission rollers 754. Adjacent third transmission rollers 754 are connected through a transmission belt.

[0069] When it is needed to realize the sliding of the taking and placing support frame 71 relative to the second battery replacing frame 5, the rotating shaft of the second driving motor 753 rotates and simultaneously drives the third transmission rollers 754 at the end thereof to rotate. Adjacent third transmission rollers 754 are simultaneously rotated through the transmission belt. The third transmission rollers 754 can drive the third driving shaft 752 to rotate. The third driving shaft 752 drives the whole taking and placing support frame 71 to slide relative to the second battery replacing frame 5 through the reaction force generated between the gear at the end of the third driving shaft 752 and the frame rack plate 51.

[0070] The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications or changes in addition or substitution to the described specific embodiments can be made by those skilled in the art without departing from the spirit of the application or exceeding the scope of the appended claims.

Claims

1. An electric vehicle battery swap station capable of smoothly replacing a battery, comprising a device frame (1), characterized in that, The device frame (1) is internally provided with a lifting frame (2) capable of lifting, the top of the device frame (1) is provided with a first driving mechanism (3) for driving the lifting frame (2) to rise and fall, the inside of the lifting frame (2) is provided with a first battery replacement frame (4) capable of sliding, the first battery replacement frame (4) is provided with a second battery replacement frame (5) capable of rotating, the rotation of the second battery replacement frame (5) is driven by the second driving mechanism (6) arranged on the surface of the first battery replacement frame (4), the surface of the second battery replacement frame (5) is provided with a battery taking and placing mechanism (7) capable of sliding, the sliding directions of the first battery replacement frame (4) and the battery taking and placing mechanism (7) are perpendicular to each other; The battery taking and placing mechanism (7) comprises a taking and placing support frame (71), a first guide wheel assembly (72), a second guide wheel assembly (73), a battery grabbing assembly (74) and a third driving mechanism (75), the inner side of the second battery replacement frame (5) is provided with a plurality of first guide wheel assemblies (72), the both sides of the taking and placing support frame (71) are provided with sliding support grooves (711), each first guide wheel assembly (72) can support and guide each surface inside the sliding support groove (711) at the same time, the both ends of the taking and placing support frame (71) are provided with a battery grabbing assembly (74) capable of sliding and a second guide wheel assembly (73) for supporting and guiding the battery, the sliding of the taking and placing support frame (71) relative to the second battery replacement frame (5) is driven by the third driving mechanism (75); The third driving mechanism (75) comprises a third driving support plate (751), a third driving shaft (752), a second driving motor (753) and a third transmission roller (754), the inner wall of the second battery replacement frame (5) is provided with a plurality of second rack plates, the middle part of the taking and placing support frame (71) is provided with a third driving support plate (751), the surface of the third driving support plate (751) is provided with a third driving shaft (752) capable of rotating and a second driving motor (753), the middle part of the third driving shaft (752) and the middle part of the second driving motor (753) are both provided with a third transmission roller (754), adjacent third transmission rollers (754) are connected through a transmission belt. 2.The battery swap station capable of smoothly replacing a battery for an electric vehicle according to claim 1, wherein Each of the first guide wheel assemblies (72) comprises a first roller mounting plate (721), a first roller support shaft (722), a first guide roller (723) and a second guide roller (724), the surface of the first roller mounting plate (721) is provided with the first roller support shaft (722), the surface of the first roller support shaft (722) is rotatably provided with the first guide roller (723), the middle part of the first roller support shaft (722) is provided with a cylindrical groove (725), the inside of the cylindrical groove (725) is rotatably provided with the second guide roller (724), the first guide roller (723) is attached to the top surface and the bottom surface of the sliding support groove (711), and the second guide roller (724) is attached to the side surface of the sliding support groove (711). 3.The battery swap station capable of smoothly replacing a battery for an electric vehicle according to claim 2, characterized in that, The second guide wheel assembly (73) comprises a first bearing support plate (731), a second roller support shaft (732), a third guide roller (733), a first roller support frame (734) and a fourth guide roller (735), the both side surfaces of the taking and placing support frame body (71) are provided with the first bearing support plate (731), the surface of the first bearing support plate (731) is provided with a plurality of second roller support shafts (732), the surface of the second roller support shaft (732) is rotatably provided with the third guide roller (733), the both side surfaces of the taking and placing support frame body (71) are further provided with the first roller support frame (734), the inside of the first roller support frame (734) is rotatably provided with the fourth guide roller (735), the axis of the third guide roller (733) and the axis of the fourth guide roller (735) are perpendicular to each other, the third guide roller (733) is attached to the side surface of the battery, and the fourth guide roller (735) is attached to the bottom surface of the battery. 4.The battery swap station capable of smoothly replacing a battery for an electric vehicle according to claim 3, characterized by, The both side ends of the taking and placing support frame body (71) are provided with a plurality of pin body support plates (76), the side surface of each of the pin body support plates (76) is provided with a positioning pin (77), the top of each of the pin body support plates (76) is provided with a third roller support shaft (78), and the surface of each of the third roller support shafts (78) is connected with a fifth guide roller (79). 5.The battery swap station capable of smoothly replacing a battery for an electric vehicle according to claim 4, wherein The battery grabbing assembly (74) comprises a grabbing support plate (740), a first guide rail (741), a first rack plate (742), a first driving motor (743), a battery grabbing structure (744) and a first driving gear (745), the surface of the taking and placing support frame body (71) is further provided with a plurality of first guide rails (741) and first rack plates (742), the grabbing support plate (740) is slidably connected to the surface of the first guide rail (741) through a sliding block, the surface of the grabbing support plate (740) is provided with the first driving motor (743) and the battery grabbing structure (744), and the end of the first driving motor (743) is provided with the first driving gear (745) which is drivingly connected to the first rack plate (742). 6.The battery swap station capable of smoothly replacing a battery for an electric vehicle according to claim 1, wherein The end of the lifting frame (2) is provided with a second bearing support plate (21), the surface of each second bearing support plate (21) is rotatably provided with a fourth roller support shaft (22), the surface of each fourth roller support shaft (22) is rotatably provided with a sixth guide roller (23), and each sixth guide roller (23) is attached to the surface of the equipment frame (1) during lifting of the lifting frame (2). 7.The battery swap station capable of smoothly replacing a battery for an electric vehicle according to claim 6, wherein The first driving mechanism (3) comprises a first gear support frame (31), a second gear support frame (32), a second driving gear (33), a third driving gear (34), a metal chain (35), a first driving shaft (36) and a third driving motor (37), each corner of the top of the equipment frame (1) is provided with a first gear support frame (31), and each corner of the bottom of the equipment frame (1) is provided with a second gear support frame (32), the inside of the first gear support frame (31) is rotatably provided with a plurality of second driving gears (33), the inside of the second gear support frame (32) is rotatably provided with a third driving gear (34), the third driving gear (34) and the second driving gear (33) are drivingly connected through the metal chain (35), adjacent second driving gears (33) are also drivingly connected through the metal chain (35), and the second driving gears (33) located on both sides of the equipment frame (1) are also connected by a first driving shaft (36), the first driving shaft (36) is drivingly connected to the third driving motor (37) at the top of the equipment frame (1), and the sidewall of the lifting frame (2) is provided with a plurality of chain limiting blocks (24), and the metal chain (35) is fixedly connected to the chain limiting blocks (24). 8.The battery swap station capable of smoothly replacing a battery for an electric vehicle according to claim 7, wherein The second driving mechanism (6) comprises a second driving support plate (61), a rotating platform gear (62), a fourth driving motor (63) and a fourth driving gear (64), the second driving support plate (61) is arranged on the surface of the first battery replacement frame (4), the surface of the second driving support plate (61) is rotatably provided with a rotating platform gear (62), the bottom of the second driving support plate (61) is provided with a fourth driving motor (63), the rotating shaft of the fourth driving motor (63) penetrates the surface of the second driving support plate (61) and is provided with a fourth driving gear (64), the fourth driving gear (64) is drivingly connected to the rotating platform gear (62), and the bottom of the second battery replacement frame (5) is fixedly connected to the surface of the rotating platform gear (62).

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