Power exchange equipment and power exchange station

Abstract

The present invention discloses a battery exchange device and a battery exchange station. The battery exchange device includes a rotating workbench, two swing bar assemblies, two top frames and two telescopic mechanisms. The two swing bar assemblies are respectively movably connected to the rotating workbench, and the two swing bar assemblies are arranged in sequence along a first direction. The two top frames are respectively connected to the two swing bar assemblies, and the top frames are connected with battery box grippers. The two telescopic mechanisms are both arranged on the rotating workbench, and the two telescopic mechanisms are respectively connected to the two swing bar assemblies in a transmission connection to respectively drive the two swing bar assemblies to drive the corresponding top frames to telescopically move along a second direction. The battery exchange device of the present application is provided with two swing assemblies to facilitate respectively grabbing the fully charged battery box in the battery compartment and the low-charged battery box on the battery vehicle to be replaced. The rotating workbench can be rotated 180°, and the two swing bar assemblies are swapped to facilitate further loading of the low-charged battery box into the battery compartment and loading of the fully charged battery box into the battery equipment to be replaced, which significantly improves the battery exchange efficiency.

Description

Technical Field

[0001] The present application relates to the field of battery box battery replacement technology, and in particular to a battery replacement device and a battery replacement station. Background Art

[0002] In response to the global call for energy conservation and emission reduction, in recent years, mechanical equipment powered by fuel has been gradually replaced by electric mechanical equipment. However, problems such as short battery life, slow charging, and rapid battery pack degradation in electric mechanical equipment also restrict the application of electric machinery. In order to solve this problem, the market provides battery replacement equipment that directly replaces power for electric equipment, so as to achieve the effect of rapid energy replenishment for electric machinery.

[0003] However, in the prior art, the battery swap mechanism is usually only equipped with one battery gripper. When swapping batteries, the battery swap mechanism needs to first grab the low-power battery box on the vehicle to be swapped, then load the low-power battery box into the battery compartment, then grab the fully-charged battery box in the battery compartment, and load the fully-charged battery box into the vehicle to be swapped. When the battery swap mechanism is only equipped with one battery gripper, there are many battery swapping procedures, low battery swapping efficiency, long waiting time for the vehicle to be swapped, and poor battery swapping experience.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The present invention provides a battery swapping device and a battery swapping station.

[0006] This application provides the following technical solutions:

[0007] The first object of the present application is to provide a battery replacement device, comprising:

[0008] Rotating table;

[0009] Two swing arm assemblies, the two swing arm assemblies are respectively movably connected to the rotating worktable, and the two swing arm assemblies are arranged in sequence along a first direction;

[0010] Two top frames, the two top frames are respectively connected to the two swing arm assemblies, and the top frames are connected with battery box grippers;

[0011] Two telescopic mechanisms, both of which are arranged on the rotating workbench, are respectively connected to the two rocker bar assemblies in transmission to drive the two rocker bar assemblies to drive the corresponding top frames to telescopically move along the second direction; wherein the first direction and the second direction have an angle.

[0012] Optionally, the two swing arm assemblies are arranged diagonally on the rotating workbench;

[0013] The two telescopic mechanisms are arranged diagonally on the rotating workbench;

[0014] The two telescopic mechanisms can respectively drive the two swing arm assemblies so that the two top frames extend in opposite directions.

[0015] Optionally, two mounting frames are provided on the rotating workbench, and the two swing arm assemblies are respectively mounted on the two mounting frames;

[0016] The rocker assembly has two side rocker groups;

[0017] The two side swing rod groups are respectively connected to two sides of the mounting frame;

[0018] The swing arm assembly has an extended state for driving the battery box gripper to extend and a retracted state for driving the battery box gripper to retract. In the retracted state, a battery box accommodating space is formed between the two side swing arm groups.

[0019] Optionally, the mounting frame includes a plate body and connecting beams arranged on both sides of the plate body;

[0020] The connecting beam is provided with a plurality of hinge seats at intervals along the length direction;

[0021] Each swing rod of the side swing rod group is hinged to a corresponding hinge seat, and the telescopic mechanism is hinged to a corresponding hinge seat.

[0022] Optionally, the side swing rod group includes a first swing rod and a second swing rod;

[0023] Both ends of the first swing rod and the second swing rod are hinged to the rotating workbench and the top frame respectively;

[0024] The first swing rod and the second swing rod have four rotation hinges in total, and the connecting lines of the four rotation hinges form a parallelogram.

[0025] Optionally, the second swing arm is hinged to a position of the top frame close to the battery box gripper, and the first swing arm is hinged to a side of the top frame away from the battery box gripper;

[0026] The second swing arm is recessed toward a side away from the battery box gripper to avoid collision.

[0027] Optionally, the second rocker arm has a first rod portion and a second rod portion, the first rod portion and the second rod portion are obliquely connected, the first rod portion is hinged to the rotating workbench, the second rod portion is hinged to the top frame, and an obtuse angle is formed between the first rod portion and the second rod portion.

[0028] Optionally, a crossbeam is connected between the first swing arms of the two side swing arm groups.

[0029] Optionally, one end of the telescopic mechanism is hinged to the rotating workbench, and the other end is hinged to the first swing arm or the crossbeam.

[0030] Optionally, a lifting mechanism is provided on the top frame, and the battery box gripper is connected to the lifting mechanism.

[0031] Optionally, the lifting mechanism comprises a flexible member, a sliding frame and a second steering wheel, the sliding frame is slidably connected to the top frame, and the first steering wheel is arranged on the sliding frame;

[0032] The second steering wheel is fixedly connected to the top frame;

[0033] One end of the flexible member is fixed to the top frame, and the flexible member is connected to the battery box gripper after passing through the first steering wheel and the second steering wheel respectively;

[0034] The sliding frame slides and drives the flexible member to lift or lower the battery box gripper.

[0035] Optionally, the lifting mechanism further includes a second telescopic component, which is connected to the sliding frame to drive the sliding frame to slide so as to lift or lower the battery box gripper.

[0036] Optionally, the battery exchange device includes a base frame and a rotary drive mechanism, and the rotary workbench is rotatably connected to the base frame;

[0037] The rotary drive mechanism is arranged on the base frame, and the rotary drive mechanism is transmission-connected with the rotary worktable to drive the rotary worktable to rotate.

[0038] Optionally, a gear ring is provided on the rotating workbench, and the rotation driving mechanism includes a motor and a gear, the gear is transmission-connected to the motor, and the gear is meshed with the gear ring.

[0039] Optionally, the rotation drive mechanism includes a telescopic drive member and a connecting rod assembly, the connecting rod assembly is transmission-connected to the rotating worktable, and the telescopic drive member and the connecting rod assembly are transmission-connected to drive the rotating worktable to rotate.

[0040] Optionally, the base frame is provided with a circular opening, and the connecting rod assembly and the rotating worktable are connected via a transmission shaft;

[0041] The telescopic driving member drives the connecting rod assembly so that the transmission shaft moves along the arc edge of the circular opening.

[0042] Optionally, one end of the transmission shaft is connected to the rotating worktable, and the other end of the transmission shaft extends to the edge of the circular opening;

[0043] The connecting rod assembly has a connecting groove, and the connecting rod assembly is rotatably sleeved on the transmission shaft through the connecting groove.

[0044] Optionally, the transmission shaft is in a cylindrical state.

[0045] Optionally, the connecting rod assembly includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are hinged;

[0046] The first connecting rod is hinged to the base frame, and the second connecting rod is transmission-connected to the rotating worktable;

[0047] The telescopic driving member is transmission-connected to the first connecting rod to drive the rotating worktable to rotate.

[0048] Optionally, the first connecting rod and the second connecting rod are both arc-shaped, and the sides of the first connecting rod and the second connecting rod facing each other are both concave sides.

[0049] Optionally, the concave groove of the first connecting rod is protrudingly provided with a first connecting seat;

[0050] The end of the telescopic driving member is hinged to the first connecting seat.

[0051] Optionally, a second connecting seat is provided at one end of the first connecting rod, and the second connecting seat has two connecting arms arranged at intervals, and a clamping cavity is formed between the two connecting arms;

[0052] The end of the second connecting rod is located in the clamping cavity, and the connecting piece passes through the two connecting arms and the second connecting rod.

[0053] The second object of the present application is to provide a battery swap station, comprising:

[0054] A battery compartment, wherein a battery box is stored;

[0055] In the above-mentioned battery exchange equipment, the two rocker arm assemblies can extend and retract in opposite directions to respectively grab the low-charged battery box on the vehicle to be replaced and the fully-charged battery box in the battery compartment; the rotating workbench can rotate 180° to adjust the fully-charged battery box to one side of the vehicle to be replaced, and the low-charged battery box to one side of the battery compartment.

[0056] Optionally, the battery swap station further includes a track, which is disposed on one side of the battery compartment and extends along the length direction of the battery compartment. The rotating workbench is rotatably connected to a base frame, and the base frame is slidably connected to the track.

[0057] Optionally, the battery swap station further includes a battery swap warehouse, and the battery swap warehouse covers the battery swap equipment and the track;

[0058] The side of the battery replacement compartment facing the battery compartment is an open side;

[0059] A door opening is provided on the wall surface of the battery replacement compartment on the side away from the battery compartment;

[0060] The swing arm assembly can extend or retract into the door opening to take out the battery box on the electric vehicle to be replaced or to load the battery box into the electric vehicle to be replaced.

[0061] By adopting the above technical solution, the present application has the following beneficial effects:

[0062] The battery exchange equipment of the present application is provided with two swinging assemblies, which can conveniently grab the fully charged battery box in the battery compartment and the low-charged battery box on the battery vehicle to be replaced. The rotating workbench can rotate 180°, and the positions of the two swing arm assemblies can be swapped to facilitate further loading of the low-charged battery box into the battery compartment and loading of the fully-charged battery box into the battery equipment to be replaced, thereby significantly improving the battery exchange efficiency.

[0063] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0065] Figure 1 A schematic diagram of the three-dimensional structure of a power exchange device provided in an embodiment of the present application is shown;

[0066] Figure 2 A schematic diagram showing a swing arm assembly in an extended state in a battery swapping device provided in an embodiment of the present application is shown;

[0067] Figure 3 A schematic diagram showing a swing arm assembly in a retracted state in a power exchange device provided in an embodiment of the present application is shown;

[0068] Figure 4 A bottom view of the base portion of the power exchange device provided in an embodiment of the present application is shown;

[0069] Figure 5 Show Figure 4 Enlarged view of part A in the middle;

[0070] Figure 6 A schematic diagram of the structure of a battery swap station provided in an embodiment of the present application is shown.

[0071] : In the figure: a, battery exchange equipment; 1, base; 11, bottom frame; 111, circular mouth; 12, rotating workbench; 121 transmission shaft; 13, mounting frame; 131, plate; 132, connecting beam; 133, hinged seat; 2, rocker assembly; 21, first rocker; 22, second rocker; 221, first rod; 222, second rod; 23, crossbeam; 3, top frame; 4, battery box gripper; 5, first telescopic component; 6, lifting mechanism; 61, flexible component; 62, sliding frame; 621, first steering wheel; 63, second steering wheel; 64, second telescopic component; 65, fixed seat; 7, rotating drive mechanism; 71, telescopic drive member; 72, connecting rod assembly; 721, first connecting rod; 721a, first connecting seat; 722, second connecting rod; b, battery box; c, battery exchange compartment; c1, door opening; d, track; e, battery compartment.

[0072] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0074] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0075] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0076] See also Figures 1 to 6As shown, the first embodiment of the present application provides a battery exchange device a, including: a rotating workbench 12, two rocker bar assemblies 2, two top frames 3 and two telescopic mechanisms, the two rocker bar assemblies 2 are respectively movably connected to the rotating workbench 12, the two rocker bar assemblies 2 are arranged in sequence along the first direction, the two top frames 3 are respectively connected to the two rocker bar assemblies 2, the top frames 3 are connected to the battery box gripper 4, the two telescopic mechanisms are both arranged on the rotating workbench 12, and the two telescopic mechanisms are respectively connected to the two rocker bar assemblies 2 to drive the two rocker bar assemblies 2 to drive the corresponding top frames 3 to telescopically move along the second direction. Wherein, the first direction and the second direction have an angle. For example, the first direction and the second direction can be perpendicular to each other.

[0077] The battery swap device a provided in the embodiment of the present application is arranged on one side of the battery compartment e of the battery swap station, and the side of the battery swap device a away from the battery swap compartment c is used to dock the vehicle to be swapped. The battery swap device a of the present application is provided with two swing assemblies, and the two swing assemblies can respectively move in opposite directions, so that the fully charged battery box b in the battery compartment e and the low-charged battery box b on the vehicle to be swapped can be conveniently grasped respectively. The rotating workbench 12 can rotate 180°, and the positions of the two swing arm assemblies 2 can be swapped, so as to facilitate further loading the low-charged battery box b into the battery compartment e, and loading the fully-charged battery box b into the battery swap device a, which significantly improves the battery swap efficiency, saves time, and enhances the battery swap experience.

[0078] In a possible implementation, the two rocker arm assemblies 2 are diagonally distributed on the rotating workbench 12. The two telescopic mechanisms (each telescopic mechanism includes two first telescopic components 5) are diagonally distributed on the rotating workbench 12. The two telescopic mechanisms can drive the two rocker arm assemblies 2 respectively, so that the two top frames 3 extend in opposite directions. For example, one telescopic mechanism drives the corresponding rocker arm assembly 2 to drive the top frame 3 to telescopically move to the left side perpendicular to the first direction, and the other telescopic mechanism drives the corresponding rocker arm assembly 2 to drive the top frame 3 to telescopically move to the right side perpendicular to the first direction, thereby respectively driving the two rocker arm assemblies 2 to extend toward the battery compartment e and the electric vehicle to be replaced to grab the two battery boxes b that need to be replaced.

[0079] In one possible embodiment, see Figure 1As shown, two mounting frames 13 are provided on the rotating workbench 12, and the two swing arm assemblies 2 are respectively mounted on the two mounting frames 13. The swing arm assembly 2 has two side swing arm groups. The two side swing arm groups are respectively connected to the two sides of the mounting frame 13. The swing arm assembly 2 has an extended state for driving the battery box gripper 4 to extend and a retracted state for driving the battery box gripper 4 to retract. In the retracted state, a battery box b accommodating space is formed between the two side swing arm groups. The battery exchange device a can move along the track d. After the battery exchange device a grabs the battery box b, the swing arm assembly 2 can be controlled to retract so that the battery box b is located directly above the corresponding mounting frame 13. At this time, the center of gravity of the entire battery exchange device a is centered, and it can move smoothly along the track d.

[0080] The mounting frame 13 is assembled on the rotating workbench 12 by fasteners. By providing two mounting frames 13, it is convenient to assemble the swing arm assembly 2 and the telescopic mechanism on the mounting frames 13, and the mounting frames 13 can be provided with a structure that is convenient for connecting and assembling with the swing arm assembly 2 and the telescopic mechanism.

[0081] In a possible implementation, the mounting frame 13 includes a plate body 131 and connecting beams 132 arranged on both sides of the plate body 131, the connecting beams 132 are provided with a plurality of articulated seats 133 at intervals along the length direction, each rocker arm of the side rocker arm group is hinged to the corresponding articulated seat 133, and the telescopic mechanism is hinged to the corresponding articulated seat 133.

[0082] In a possible implementation scheme, the rocker arm assembly 2 includes a first rocker arm 21 and a second rocker arm 22, and both ends of the first rocker arm 21 and the second rocker arm 22 are respectively hinged to the base 1 (the base 1 includes a bottom frame 11 and a rotating worktable 12) and the top frame 3, and the first rocker arm 21 and the second rocker arm 22 have a total of four rotation hinges, and the connecting lines of the four rotation hinges form a parallelogram.

[0083] In this embodiment, a parallelogram linkage mechanism is formed among the first rocker arm 21, the second rocker arm 22, the top frame 3 and the base 1. When the first telescopic component 5 drives the rocker arm assembly 2 to deform, the top frame 3 can always maintain a horizontal state and will not tilt, ensuring that the battery box gripper 4 can stably grip the transported battery box b.

[0084] In one possible embodiment, see Figure 1 and Figure 2As shown, the second swing arm 22 is hinged to the position of the top frame 3 close to the battery box gripper 4, and the first swing arm 21 is hinged to the side of the top frame 3 away from the battery box gripper 4. The second swing arm 22 is recessed to avoid the side away from the battery box gripper 4. In this way, when the first swing arm 21 and the second swing arm 22 are tilted to drive the battery box gripper 4 to be located on the top of the battery box b of the electric vehicle to be replaced, the second swing arm 22 close to the electric vehicle to be replaced is recessed to avoid the body structure of the electric vehicle to be replaced, so as to prevent the second swing arm 22 from interfering with the body structure of the electric vehicle to be replaced during the process of disassembling and installing the battery box b.

[0085] In a possible embodiment, the second rocker arm 22 has a first rod portion 221 and a second rod portion 222, the first rod portion 221 and the second rod portion 222 are obliquely connected, the first rod portion 221 is hinged to the base 1, the second rod portion 222 is hinged to the top frame 3, and an obtuse angle is formed between the first rod portion 221 and the second rod portion 222.

[0086] Among them, the first rod portion 221 and the second rod portion 222 can be an integrally formed part, and the first rod portion 221 and the second rod portion 222 have a smooth transition, forming an obtuse angle therebetween. When the top frame 3 is extended to the extreme position, the obtuse angle area between the first rod portion 221 and the second rod portion 222 serves to avoid the body structure of the electric vehicle to be replaced.

[0087] The angle formed between the first rod portion 221 and the second rod portion 222 is slightly greater than 90 degrees. When the top frame 3 is extended to the limit position, the second rod portion 222 is close to being located on the same horizontal plane as the top frame 3, playing a role of avoiding.

[0088] In a possible implementation, the first swing bar 21 and the second swing bar 22 are connected to both sides of the top frame 3, respectively. That is, two sets of side support structures are provided corresponding to the top frame 3, each of which includes a first swing bar 21 and a second swing bar 22. The two side support structures provide better support stability for the top frame 3, so that the top frame 3 can move more smoothly. When the top frame 3 retracts to the top of the base 1, a storage space for the battery box b is formed between the two side support structures.

[0089] In one possible approach, see Figure 1As shown, a crossbeam 23 is connected between the two first swing rods 21. The two first swing rods 21 are connected as an integral structure, which enhances the structural strength and has good durability. One end of the first telescopic component 5 is hinged to the base 1, and the other end is hinged to the first swing rod 21 or the crossbeam 23. Two first telescopic components 5 can be provided, and the two first telescopic components 5 are respectively hinged to the two first swing rods 21. By providing the two first telescopic components 5, the driving force is improved, and the driving structure has good stability. Among them, the first telescopic component 5 can be a telescopic cylinder.

[0090] In one possible embodiment, see Figure 1 and Figure 3 As shown, a lifting mechanism 6 is provided on the top frame 3, and the battery box gripper 4 is connected to the lifting mechanism 6. The lifting mechanism 6 is used to lift or lower the battery box b gripped by the battery box gripper 4.

[0091] In one possible embodiment, see Figure 3 As shown, the lifting mechanism 6 includes a flexible member 61, a sliding frame 62 and a second steering wheel 63. The sliding frame 62 is slidably connected to the top frame 3, and a first steering wheel 621 is provided on the sliding frame 62. The second steering wheel 63 is fixedly connected to the top frame 3. One end of the flexible member 61 is fixed to the top frame 3, such as fixed to a fixed seat 65 of the top frame 3. The flexible member 61 is connected to the battery box gripper 4 after passing through the first steering wheel 621 and the second steering wheel 63 respectively. The top frame is provided with an avoidance hole corresponding to the second steering wheel, and the flexible member 61 passes through the avoidance hole. The sliding frame 62 slides to drive the flexible member 61 to lift or lower the battery box gripper 4. Among them, the flexible member 61 can be a lifting rope, a wire rope, etc. In this embodiment, the flexible member 61 can be controlled to lift or lower the battery box gripper 4 by controlling the movement of the sliding frame 62.

[0092] In order to reduce the lifting load of the flexible member 61 and extend its service life, and to facilitate and stably lift the battery box b, a plurality of flexible members 61 may be provided in the embodiment of the present application, and a corresponding first steering wheel 621 and a second steering wheel 63 are provided for each flexible member 61, and the ends of each flexible member 61 are connected to the battery box gripper 4.

[0093] The lifting mechanism 6 further includes a second telescopic component 64, which is connected to the sliding frame 62 and drives the sliding frame 62 to slide so as to lift or lower the battery box gripper 4. The second telescopic component 64 may be a telescopic oil cylinder. When the second telescopic component 64 is extended, the section of the flexible member 61 between the first steering wheel 621 and the second steering wheel 63 becomes longer, and the section of the flexible member 61 extending downward from the vertical top frame 3 becomes shorter, thereby lifting the battery box gripper 4. When the second telescopic component 64 is shortened, on the contrary, the section of the flexible member 61 extending from the vertical top frame 3 becomes longer, thereby lowering the battery box b.

[0094] See also Figure 1 As shown, the battery exchange device a of the present application includes two top frames 3, two rocker bar assemblies 2 and two telescopic mechanisms. The two rocker bar assemblies 2 are respectively movably connected to the base 1, and the two rocker bar assemblies 2 are arranged in sequence along the first direction. The two top frames 3 are respectively connected to the two rocker bar assemblies 2, and the top frames 3 are connected to a battery box gripper 4. The two telescopic mechanisms are both arranged on the base 1, and the two telescopic mechanisms are respectively connected to the two rocker bar assemblies 2 to drive the corresponding top frames 3 to telescopically move along the second direction; wherein each telescopic mechanism may include two first telescopic components 5.

[0095] The power exchange device a comprises a base frame 11 and a rotation drive mechanism 7, and the rotating table 12 is rotatably connected to the base frame 11. The rotation drive mechanism 7 is arranged on the base frame 11, and the rotation drive mechanism 7 is transmission-connected with the rotating table 12 to drive the rotating table 12 to rotate.

[0096] Optionally, a gear ring may be provided on the rotating workbench 12, and the rotating drive mechanism 7 includes a motor and a gear, the gear is connected to the motor in a transmission manner, and the gear is meshed with the gear ring. However, in this cooperation relationship in which the motor drives the gear, and the gear and the gear ring are meshed and transmitted, because the transmission ratio is relatively large and the inertia is large during the transmission process, it is difficult for the motor to accurately control the gear to drive the gear ring to rotate to a set angle position, which is not conducive to the subsequent battery replacement mechanism to accurately perform the battery replacement task.

[0097] To solve the above problems, see Figure 4 and Figure 5As shown, another rotary drive mechanism 7 is also provided in the embodiment of the present application, and the rotary table 12 is rotatably connected to the base frame 11. The rotary drive mechanism 7 is arranged on the base frame 11, and the rotary drive mechanism 7 includes a telescopic drive member 71 and a connecting rod assembly 72, and the connecting rod assembly 72 is connected to the rotary table 12 in a transmission manner, and the telescopic drive member 71 is connected to the connecting rod assembly 72 in a transmission manner to drive the rotary table 12 to rotate. Among them, the telescopic drive member 71 can be a telescopic oil cylinder, a telescopic air cylinder, a screw mechanism, etc. This application does not limit this.

[0098] The rotary drive mechanism 7 of the battery swap warehouse c provided in the present application uses a telescopic drive member 71 and a connecting rod assembly 72 to drive the rotary table 12 to rotate. The telescopic length of the telescopic drive member 71 is easy to control. The telescopic drive member 71 cooperates with the connecting rod assembly 72 to accurately control the rotary table 12 to rotate to a set angle position. For example, when the telescopic drive member 71 is a telescopic oil cylinder, the telescopic process of the telescopic oil cylinder is controlled by a solenoid valve, and the telescopic amount control accuracy is high.

[0099] In one possible embodiment, see Figure 5 As shown, the base frame 11 is provided with a circular opening 111, and the connecting rod assembly 72 and the rotating table 12 are connected via a transmission shaft 121. The telescopic driving member 71 drives the connecting rod assembly 72 so that the transmission shaft 121 moves along the arc edge of the circular opening 111. In this embodiment, in the process of the telescopic driving member 71 driving the connecting rod assembly 72 to swing, the transmission shaft 121 is limited by the arc edge of the circular opening 111 and can only move along the edge of the circular opening 111, and the axis center line of the circular opening 111 can coincide with the rotation axis line of the rotating table 12. For example, the rotating table 12 can be connected to the base frame 11 via a slewing bearing, and the axis center line of the slewing bearing coincides with the axis center line of the circular opening 111. In this way, the rotating table 12 can be driven to rotate in the process of the transmission shaft 121 sliding along the edge of the circular opening 111.

[0100] By designing the dimensions of each connecting rod of the connecting rod assembly 72 and controlling the telescopic amount of the telescopic driving member 71, it is possible to drive the rotating workbench 12 to rotate at an angle equal to or greater than 180°, which meets the product design requirements.

[0101] In a possible implementation, one end of the transmission shaft 121 is connected to the rotating worktable 12, and the other end of the transmission shaft 121 extends to the edge of the circular opening 111. The connecting rod assembly 72 has a connecting groove, and the connecting rod assembly 72 is rotatably sleeved on the transmission shaft 121 through the connecting groove. During the telescopic drive member 71 telescopic process, each connecting rod is driven to swing, and the swing of the connecting rod drives the transmission shaft 121 to move. In this process, the connecting rod and the transmission shaft 121 rotate relatively.

[0102] In a possible embodiment, the transmission shaft 121 is cylindrical and has a smooth surface, so as to reduce the friction interference between the transmission shaft 121 and the edge of the circular opening 111 .

[0103] In one possible embodiment, see Figure 5 As shown, the connecting rod assembly 72 includes a first connecting rod 721 and a second connecting rod 722, and the first connecting rod 721 and the second connecting rod 722 are hinged. The first connecting rod 721 is hinged to the base frame 11, and the second connecting rod 722 is in transmission connection with the rotating worktable 12. The second connecting rod 722 can be provided with a connecting groove, and the transmission shaft 121 is inserted into the connecting groove. The telescopic driving member 71 is in transmission connection with the first connecting rod 721 to drive the rotating worktable 12 to rotate.

[0104] The first connecting rod 721 and the second connecting rod 722 are both arc-shaped, and the sides of the first connecting rod 721 and the second connecting rod 722 facing each other are both concave sides. The battery box gripper 4 and / or the lifting mechanism 6 are connected with oil pipes and wire harnesses, which pass through the circular opening 111. In the embodiment of the present application, by setting the first connecting rod 721 and the second connecting rod 722 as a structure concave toward each other, the oil pipes and wire harnesses are avoided.

[0105] In a possible implementation, as shown in the figure, a first connection seat 721a is protruding from the concave side of the first connecting rod 721, and the end of the telescopic driving member 71 is hinged to the first connection seat 721a. The telescopic driving member 71 telescopes and drives the entire connecting rod assembly 72 through the first connection seat 721a to drive the rotating working platform to rotate.

[0106] In a possible embodiment, a second connecting seat is set at one end of the first connecting rod 721, and the second connecting seat has two connecting arms arranged at an interval, and a clamping cavity is formed between the two connecting arms. The end of the second connecting rod 722 is located in the clamping cavity, and the connecting piece passes through the two connecting arms and the second connecting rod 722.

[0107] In a possible implementation, the base frame 11 has a frame body and a frame plate arranged on the frame body, and the frame plate is provided with the circular opening 111. The rotating worktable 12 is rotatably connected to the frame plate. The rotating drive mechanism 7 is arranged on the frame plate.

[0108] Wherein, a walking mechanism is arranged on the base frame 11. The walking mechanism drives the entire battery exchange device a to move. The walking mechanism may include a walking wheel arranged on the base frame 11. For example, a driving member may be arranged on the base frame 11, and the driving member is connected to at least one walking wheel to drive the walking wheel to rotate. The driving member may include a motor and a reducer. Embodiment 2

[0109] Embodiment 2 of the present application provides a battery swap station, comprising: a battery compartment e and the above-mentioned battery swap device a. Battery boxes b are stored in the battery compartment e. The two rocker assemblies 2 can be retracted in opposite directions to respectively grab the low-power battery box b on the vehicle to be swapped and the fully-charged battery box b in the battery compartment e. The rotating workbench 12 can rotate 180° to adjust the fully-charged battery box b to be located on one side of the vehicle to be swapped, and the low-power battery box b to be located on one side of the battery compartment e.

[0110] The battery swap station also includes a track d, which is arranged on one side of the battery compartment e and extends along the length direction of the battery compartment e. The rotating workbench 12 is rotatably connected to the base frame 11, and the base frame 11 is slidably connected to the track d.

[0111] The battery swap station also includes a battery swap compartment c, which covers the battery swap equipment a and the track d. The side of the battery swap compartment c facing the battery compartment e is an open side. A door opening c1 is provided on the wall surface of the battery swap compartment c on the side away from the battery compartment e. The swing arm assembly 2 can extend or retract the door opening c1 to take out the battery box b on the electric vehicle to be replaced or load the battery box b into the electric vehicle to be replaced.

[0112] The chassis 11 of the battery exchange device a of the present application is slidably connected to the track d. A battery compartment e is set on one side of the track d (the structure of the battery compartment is not shown, only the battery box in the compartment is retained), and fully charged battery boxes b are arranged inside. The other side of the track d is used to park the battery car to be replaced. When battery replacement is required, a swing arm assembly 2 of the battery exchange device a extends to the side of the track d where the fully charged battery box b is set, so that the battery box gripper 4 is located on the top of the target fully charged battery box b, and then the lifting mechanism 6 lowers the battery box gripper 4 so that the battery box gripper 4 contacts and grabs the battery box b, and then the lifting mechanism 6 lifts the battery box gripper 4 to lift the battery box b. The swing arm assembly 2 retracts, driving the battery box b to be located at the top position of the rotating workbench 12, and the battery exchange device a moves to the position corresponding to the door opening c1 on the track d (battery exchange station). At this time, another swing arm assembly 2 of the battery exchange device a is facing the door opening c1, and the battery car to be replaced is parked at the station corresponding to the door opening c1. The unloaded rocker arm assembly 2 extends out of the door opening c1, driving the corresponding battery box gripper to be located at the top position of the low-charged battery box b on the electric vehicle to be replaced. At this time, the lifting mechanism 6 on the corresponding top frame 3 lowers the battery box gripper 4 so that the battery box gripper 4 contacts and grabs the battery box b. The lifting mechanism 6 lifts the battery box gripper 4, and the corresponding rocker arm assembly 2 retracts and carries the low-charged battery box b to the top of the rotating workbench 12. The rotating drive mechanism 7 drives the rotating workbench 12 to rotate ° to swap the positions of the two rocker arm assemblies 2, so that the fully charged battery box b is located on one side of the electric vehicle to be replaced, and the low-charged battery box b is located on the side of the battery compartment e. The battery replacement equipment a controls the rocker arm assembly 2 that grabs the fully charged battery box b to extend to one side of the electric vehicle to be replaced, and cooperates with the lifting mechanism 6 and the battery box gripper 4 to load the fully charged battery box b into the electric vehicle to be replaced. Similarly, the battery exchange device a controls the rocker assembly 2 corresponding to the low-power battery box b to extend to the other side of the track d, and unloads the low-power battery box b into the battery compartment e through the cooperation of the lifting mechanism 6 and the battery box gripper 4.

[0113] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A battery replacement device, characterized in that: include: Rotating table; Two swing arm assemblies, the two swing arm assemblies are respectively movably connected to the rotating worktable, and the two swing arm assemblies are arranged in sequence along a first direction; Two top frames, the two top frames are respectively connected to the two swing arm assemblies, and the top frames are connected with battery box grippers; Two telescopic mechanisms, both of which are arranged on the rotating worktable, and are respectively connected to the two swing bar assemblies in a transmission manner, so as to respectively drive the two swing bar assemblies to drive the corresponding top frame to telescopically move along the second direction; wherein the first direction and the second direction have an angle; Two mounting frames are arranged on the rotating workbench, and the two swing arm assemblies are respectively mounted on the two mounting frames; The rocker assembly has two side rocker groups; The two side swing rod groups are respectively connected to two sides of the mounting frame; The swing arm assembly has an extended state for driving the battery box gripper to extend and a retracted state for driving the battery box gripper to retract. In the retracted state, a battery box accommodating space is formed between the two side swing arm assemblies. The side swing rod group includes a first swing rod and a second swing rod; Both ends of the first swing rod and the second swing rod are hinged to the rotating workbench and the top frame respectively; The first swing rod and the second swing rod have four rotation hinges in total, and the connecting lines of the four rotation hinges form a parallelogram; The second swing arm is hinged to a position of the top frame close to the battery box gripper, and the first swing arm is hinged to a side of the top frame away from the battery box gripper; The second swing arm is recessed toward a side away from the battery box gripper to avoid; The second swing arm has a first rod portion and a second rod portion, the first rod portion and the second rod portion are connected obliquely, the first rod portion is hinged to the rotating workbench, the second rod portion is hinged to the top frame, and an obtuse angle is formed between the first rod portion and the second rod portion.

2. The battery replacement device according to claim 1, characterized in that: The two swing arm assemblies are arranged diagonally on the rotating workbench; The two telescopic mechanisms are arranged diagonally on the rotating workbench; The two telescopic mechanisms can respectively drive the two swing arm assemblies so that the two top frames extend in opposite directions.

3. The battery replacement device according to claim 1, characterized in that: The mounting frame includes a plate body and connecting beams arranged on both sides of the plate body; The connecting beam is provided with a plurality of hinge seats at intervals along the length direction; Each swing rod of the side swing rod group is hinged to a corresponding hinge seat, and the telescopic mechanism is hinged to a corresponding hinge seat.

4. The battery replacement device according to claim 1, characterized in that: A crossbeam is connected between the first swing arms of the two side swing arm groups.

5. The battery replacement device according to claim 4, characterized in that: One end of the telescopic mechanism is hinged to the rotating workbench, and the other end is hinged to the first swing rod or the crossbeam.

6. The battery replacement device according to claim 1, characterized in that: A lifting mechanism is arranged on the top frame, and the battery box gripper is connected to the lifting mechanism.

7. The battery replacement device according to claim 6, characterized in that: The lifting mechanism comprises a flexible member, a sliding frame and a second steering wheel, wherein the sliding frame is slidably connected to the top frame, and the first steering wheel is arranged on the sliding frame; The second steering wheel is fixedly connected to the top frame; One end of the flexible member is fixed to the top frame, and the flexible member is connected to the battery box gripper after passing through the first steering wheel and the second steering wheel respectively; The sliding frame slides and drives the flexible member to lift or lower the battery box gripper.

8. The battery replacement device according to claim 7, characterized in that: The lifting mechanism also includes a second telescopic component, which is connected to the sliding frame and drives the sliding frame to slide so as to lift or lower the battery box gripper.

9. The battery replacement device according to claim 1, characterized in that: It comprises a base frame and a rotary drive mechanism, wherein the rotary worktable is rotatably connected to the base frame; The rotary drive mechanism is arranged on the base frame, and the rotary drive mechanism is transmission-connected with the rotary worktable to drive the rotary worktable to rotate.

10. The battery replacement device according to claim 9, characterized in that: The rotating workbench is provided with a gear ring, and the rotating driving mechanism comprises a motor and a gear, the gear is transmission-connected to the motor, and the gear is meshed with the gear ring.

11. The battery replacement device according to claim 9, characterized in that: The rotary drive mechanism comprises a telescopic drive member and a connecting rod assembly, the connecting rod assembly is transmission-connected to the rotary worktable, and the telescopic drive member and the connecting rod assembly are transmission-connected to drive the rotary worktable to rotate.

12. The battery replacement device according to claim 11, characterized in that: The base frame is provided with a circular opening, and the connecting rod assembly and the rotating worktable are connected via a transmission shaft; The telescopic driving member drives the connecting rod assembly so that the transmission shaft moves along the arc edge of the circular opening.

13. The battery replacement device according to claim 12, characterized in that: One end of the transmission shaft is connected to the rotating worktable, and the other end of the transmission shaft extends to the edge of the circular opening; The connecting rod assembly has a connecting groove, and the connecting rod assembly is rotatably sleeved on the transmission shaft through the connecting groove.

14. The battery replacement device according to claim 12, characterized in that: The transmission shaft is in a cylindrical state.

15. The battery replacement device according to claim 11, characterized in that: The connecting rod assembly comprises a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are hingedly connected; The first connecting rod is hinged to the base frame, and the second connecting rod is transmission-connected to the rotating worktable; The telescopic driving member is transmission-connected to the first connecting rod to drive the rotating worktable to rotate.

16. The battery replacement device according to claim 15, characterized in that: The first connecting rod and the second connecting rod are both arc-shaped, and the sides of the first connecting rod and the second connecting rod facing each other are both concave sides.

17. The battery replacement device according to claim 16, characterized in that: The first connecting rod is provided with a first connecting seat protruding from the concave groove; The end of the telescopic driving member is hinged to the first connecting seat.

18. The battery replacement device according to claim 15, characterized in that: A second connecting seat is disposed at one end of the first connecting rod, and the second connecting seat has two connecting arms disposed at intervals, and a clamping cavity is formed between the two connecting arms; The end of the second connecting rod is located in the clamping cavity, and the connecting piece passes through the two connecting arms and the second connecting rod.

19. A battery swap station, characterized in that: include: A battery compartment in which a battery box is stored ； According to the battery exchange equipment as described in any one of claims 1-18, the two rocker arm assemblies can extend and retract in opposite directions to respectively grab the low-charged battery box on the vehicle to be replaced and the fully-charged battery box in the battery compartment; the rotating workbench can rotate 180° to adjust the fully-charged battery box to be located on one side of the vehicle to be replaced, and the low-charged battery box to be located on one side of the battery compartment.

20. The battery swap station according to claim 19, characterized in that: It also includes a track, which is arranged on one side of the battery compartment and extends along the length direction of the battery compartment. The rotating workbench is rotatably connected to the base frame, and the base frame is slidably connected to the track.

21. The battery swap station according to claim 20, characterized in that: It also includes a battery swap warehouse, which covers the battery swap equipment and the track; The side of the battery replacement compartment facing the battery compartment is an open side; A door opening is provided on the wall surface of the battery replacement compartment on the side away from the battery compartment; The swing arm assembly can extend or retract into the door opening to take out the battery box on the electric vehicle to be replaced or to load the battery box into the electric vehicle to be replaced.

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