Disclosure of Invention
In view of the above, it is necessary to provide a battery replacement device and method for accommodating multiple types of battery packs, aiming to accommodate multiple types of battery packs.
To this end, the present invention provides a battery replacement device adapted to a plurality of types of battery packs, including:
a load-bearing platform;
the first docking mechanism is used for docking the battery packs of the first type;
the second docking mechanism is used for docking a second type of battery pack;
and the switching mechanism is used for switching the first butting mechanism or the second butting mechanism to butt the battery pack according to the type of the battery pack.
Preferably, the switching mechanism includes a rotating base, the first docking mechanism and the second docking mechanism are connected to the rotating base, and the rotating base is rotatably connected to the bearing platform and is configured to switch the first docking mechanism or the second docking mechanism to dock the battery pack through rotation of the rotating base.
Preferably, the switching mechanism further comprises a telescopic member, a sliding seat and a connecting rod, the sliding seat is movably connected with the bearing platform, and the telescopic member is connected with the bearing platform and the sliding seat and used for drawing the sliding seat to move; the sliding seat is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the rotating seat, and therefore when the sliding seat moves, the rotating seat is pulled to rotate through the connecting rod.
Preferably, the switching mechanism further comprises a rotating motor and a rotating shaft, the rotating base is rotatably connected with the bearing platform through the rotating shaft, and the rotating motor is connected with the rotating shaft and used for drawing the rotating base to rotate through the rotating shaft.
Preferably, the first docking mechanism includes a first connection fork, a second connection fork, and a first driving member, the first connection fork is movably connected to the first docking member of the rotating base, the first driving member is connected to the first connection fork to drive the first connection fork to move relative to the rotating base, and the second connection fork is connected to the first docking member and is used for docking the battery pack with the first connection fork.
Preferably, the first docking mechanism further comprises an unlocking mechanism, the unlocking mechanism comprising:
the unlocking rod is connected with the rotation in a vertical plane and is used for supporting the locking mechanism of the battery pack when the battery pack is butted;
the unlocking driving piece is connected with the unlocking rod and used for driving the unlocking rod to rotate so as to be in butt joint with or deviate from the locking mechanism of the battery pack.
Preferably, the second docking mechanism includes:
the lock rod comprises a connecting part and a clamping part, and the clamping part is connected with the connecting part along the radial direction of the connecting part;
the second driving piece is used for driving the clamping portion to rotate through the connecting portion.
Preferably, the second driving member has a cavity extending along the axial direction, and a clamping groove extending along the axial direction is formed in the inner wall of the cavity;
the lock rod further comprises a pin shaft, and the pin shaft is embedded into the clamping groove;
the second butt joint mechanism further comprises an elastic piece, the elastic piece is located in the containing cavity and abutted between the second driving piece and the connecting portion, and the elastic piece is used for propping the connecting portion to extend out of the containing cavity and be connected with the clamping portion.
In addition, the invention also provides a battery replacement method suitable for various types of battery packs, which comprises the following steps:
receiving vehicle information, wherein the vehicle information includes a type of a battery pack;
if the battery pack is determined to be of the first type, the switching mechanism switches the first butting mechanism to butt the battery pack; and if the battery pack is determined to be of the second type, the switching structure switches the second docking mechanism to dock the battery pack.
Preferably, the switching mechanism switching the first docking mechanism to dock the battery pack includes: the rotating seat of the switching mechanism rotates, so that the side face, connected with the first butting mechanism, of the rotating seat faces the battery pack to butt the battery pack;
and the switching mechanism switching the second docking mechanism to dock the battery pack comprises: the rotating seat of the switching mechanism rotates, so that the side face, connected with the second butting mechanism, of the rotating seat faces the battery pack to be butted with the battery pack.
Compared with the prior art, the battery replacing equipment and the battery replacing method suitable for the multiple types of battery packs are provided with the first docking mechanism and the second docking mechanism which can dock the first type of battery pack and the second type of battery pack, and in the process of replacing the battery pack for the electric vehicle, the first docking mechanism or the second docking mechanism corresponding to the type of the battery pack can be switched to through the switching mechanism according to the different types of battery packs, so that the battery replacing operation of the multiple types of battery packs is suitable.
Detailed Description
In order that the above objects, features and advantages of the present disclosure can be more clearly understood, a detailed description of the present disclosure will be given below with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present disclosure, and the described embodiments are merely a subset of the embodiments of the present disclosure, rather than a complete embodiment. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.
In various embodiments, the term "coupled" as used in the specification and claims of the present disclosure is not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect, for convenience of description and not limitation of the present disclosure. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
Fig. 1 is a schematic structural diagram of the power swapping device in a docking state using the first docking mechanism 30, and fig. 2 is a schematic structural diagram of the power swapping device in a docking state using the second docking mechanism 40. As shown in fig. 1 and 2, the battery swapping device suitable for various types of battery packs includes a carrying platform 10, a first docking mechanism 30, a second docking mechanism 40, and a switching mechanism 20. The carrier platform 10 is used to carry other components, the first docking mechanism 30 is used to dock a first type of battery pack, and the second docking mechanism 40 is used to dock a second type of battery pack. The switching mechanism 20 is used for switching the first docking mechanism 30 or the second docking mechanism 40 to dock the battery pack according to the type of the battery pack. For the first type of battery pack, the switching mechanism 20 may switch the first docking mechanism 30 toward the battery pack to dock the battery pack, completing the unlocking and transferring actions of the battery pack (i.e., transferring the battery pack between the battery swapping device and the electric vehicle). Similarly, for a second type of battery pack, the switching mechanism 20 may switch the second docking mechanism 40 toward the battery pack to dock the battery pack.
The carrying platform 10 is generally a flat plate structure, and one or more road wheels 11 are arranged at the bottom of the carrying platform and can move within a preset range. During operation, the load-bearing platform 10 can move under the electric vehicle to load the battery pack on the upper surface of the load-bearing platform 10. In order to facilitate the movement of the battery pack in the vertical direction, the carrying platform 10 may further be provided with one or more guiding columns 12 extending in the vertical direction, and the end portions of the guiding columns 12 are preferably in a conical structure and are used for matching with the guiding holes of the battery pack to guide the battery pack to move relative to the upper surface of the carrying platform 10. In addition, the first docking mechanism 30, the second docking mechanism 40, and the switching mechanism 20 are attached to the upper surface of the loading platform 10. In the present embodiment, the number of the switching mechanism 20, the first docking mechanism 30, and the second docking mechanism 40 is one, and each is located at both ends of the carriage platform 10 in the traveling direction.
Fig. 3 is a schematic diagram of a switching structure. As shown in fig. 3, the switching mechanism 20 includes a telescopic member 22, a connecting rod 23 and a rotating base 21, and is used for switching the first docking mechanism 30 and the second docking mechanism 40 by pulling the rotating base 21 to rotate on the loading platform 10. The extension member 22 may be a linear motor, or may be other linear driving means such as a pneumatic cylinder or a hydraulic cylinder. The telescopic part 22 extends along the walking direction of the battery replacing device, one end of the telescopic part is hinged to the bearing platform 10, and the other end of the telescopic part is hinged to a sliding seat 24. The slide 24 is movably connected to the carrying platform 10 at the bottom through a slide rail 241, the top is hinged to one end of a connecting rod 23, and the other end of the connecting rod 23 is hinged to the rotating seat 21.
The rotary seats 21 extend along both sides of the moving direction of the load-bearing platform 10, and both ends are rotatably connected to the connecting plates 13 of the load-bearing platform 10. The first docking mechanism 30 and the second docking mechanism 40 are connected to the rotating base 21, and the rotating base 21 is rotatably connected to the bearing platform 10, and is used for switching the first docking mechanism 30 or the second docking mechanism 40 to dock the battery pack through rotation of the rotating base 21. The rotary base 21 has two sides for mounting the first docking mechanism 30 and the second docking mechanism 40: a first side 211 and a second side 212. Specifically, the first docking mechanism 30 is disposed on the first side 211, and the second docking mechanism 40 is disposed on the second side 212. In operation, the sliding base 24 is pulled by the telescopic part 22 to move along the length direction of the sliding rail 241, and the sliding base 24 pulls the rotating base 21 to rotate through the connecting rod 23, so that the first side surface 211 or the second side surface 212 faces the battery pack according to the type of the battery pack, so as to rotate the first docking mechanism 30 or the second docking mechanism 40 to the position facing the battery pack.
In other embodiments, the rotating seat 21 may drive the rotating seat 21 to rotate by other means. For example, the switching mechanism 20 further includes a rotating motor and a rotating shaft, the rotating base 21 is rotatably connected to the carrying platform 10 through the rotating shaft, and the rotating motor is connected to the rotating shaft and is used for drawing the rotating base 21 to rotate through the rotating shaft.
Fig. 4 is a schematic structural view of a lock mechanism of a battery pack corresponding to the first docking mechanism 30. For convenience of description, in the present embodiment, the locking mechanism corresponding to the first docking mechanism 30 of the first type of battery pack is the first locking mechanism 50, and the battery pack may be connected to the electric vehicle by the first locking mechanism 50. Specifically, as shown in fig. 4, the first locking mechanism 50 is located on an inner circumferential surface of a fixed seat at the bottom of the electric vehicle, and the first locking mechanism 50 includes a lock base 51, a lock link 52, and a latch. The lock base 51 is provided with a lock slot 511, and the lock slot 511 has an opening 512. One end of the latch tongue is hinged to the lock link 52, and the other end is hinged to the lock base 51. Thus, the lock link 52 can rotate the latch bolt. The circumference of the battery pack is provided with a mounting seat, and when the battery pack is mounted in the fixing seat, the mounting seat of the battery pack is fixed in the lock base 51. When the lock link 52 moves relative to the lock base 51, the lock base 51 can be switched between a locked state and an unlocked state, specifically, the mount is inserted into the lock slot 511 from the entrance of the lock slot 511 to a locked position, and the mount is locked in the lock slot 511 after the tongue is lowered, so that the lock base 51 is in the locked state. When the battery pack needs to be detached from the fixing seat, the mounting seat of the battery pack needs to be removed from the locking groove 511 of the lock base 51, and the lock base 51 is in an unlocked state. Specifically, the lock link 52 is actuated to rotate the latch bolt, thereby retracting the latch bolt and allowing the mounting seat of the battery pack to be removed from the locking slot 511. The lock link 52 is provided with an unlocking point, and during the battery pack removal process, the unlocking lever 32 abuts against the unlocking point of the lock link 52 (direction F shown in fig. 4) to retract the latch bolt.
Fig. 5 is a schematic structural view of the first docking mechanism 30. As shown in fig. 5, the first docking mechanism 30 includes a first clevis 31, a second clevis 33, and a first driving member 311. The first connecting fork 31 is movably connected to a first coupling member of the rotating base 21, and the first driving member 311 is connected to the first connecting fork 31 to drive the first connecting fork 31 to move relative to the rotating base 21. In this embodiment, the top of the first butt joint fork is in a U-shaped structure, and the bottom is movably connected to the first side surface 211 of the rotating seat 21, so as to pull the battery pack to move transversely to move out the mounting seat of the battery pack from the opening 512 of the locking groove 511 after the mounting seat of the battery pack is clamped at the top. The first driving member 311 is connected to the first docking fork and the first side 211 of the rotating base 21, and is used for pulling the first docking fork to move transversely (i.e. to move in a horizontal direction). The second connecting fork 33 is connected to the first connecting member and is used for connecting the battery pack with the first connecting fork 31.
Further, the first docking mechanism 30 includes an unlocking mechanism. The unlocking mechanism comprises a connecting seat 322, an unlocking rod 32 and an unlocking driving piece 321. The connecting base 322 is generally elongated and has a bottom portion connected to one or more sliding blocks. The bearing platform 10 is further provided with a slide rail 241, and the slide block is slidably connected to the slide rail 241, so that the connecting seat 322 can move along the length direction of the slide rail 241 through the slide block. The unlocking rod 32 is rotatably connected to the carrying platform 10, and is configured to support an unlocking point of the first locking mechanism 50, so that the lock link 52 of the first locking mechanism 50 moves relative to the lock base 51, and the lock link 52 pulls the lock tongue to rotate, so as to move out of the opening 512 of the lock slot 511, and unlock the mounting seat.
In this embodiment, the unlocking driving member 321 is connected to the unlocking lever 32, and is configured to drive the unlocking lever 32 to dock or deviate from the locking mechanism of the battery pack. In the process of moving the battery pack from the battery replacement device to the electric vehicle, the unlocking driving member 321 pulls the unlocking lever 32 to be switched to the upright state (i.e., the locking link 52 of the locking mechanism can be abutted), and the locking link 52 is supported along with the approach of the bearing platform 10 to the battery pack, so that the unlocking function is realized. After the mounting seat of the battery pack is transversely moved into the locking groove 511, the unlocking driving member 321 pulls the unlocking rod 32 to deflect without propping up the locking connecting rod 52, the locking connecting rod 52 is reset, the pulling locking piece 53 rotates to the position of the stopping fixing seat, and the locking action of the fixing seat of the battery pack is completed. The load-bearing platform 10 is then repositioned to disengage the battery pack.
In some embodiments, the unlocking mechanism further comprises an elastic member 323, wherein the elastic member 323 connects the connecting seat 322 and the carrying platform 10 for resetting the connecting seat 322. In addition, the unlocking mechanism further comprises a stop block 324, wherein the stop block 324 is connected to the bearing platform 10 and located in the moving path of the connecting seat 322 to stop the connecting seat 322. In this way, the unlocking rod 32 has a certain degree of freedom in the process of jacking the locking mechanism through the movable connection of the connecting seat 322, and the unlocking rod 32 and the locking mechanism are allowed to have a certain range of errors in the contact process.
Fig. 6 is a schematic structural diagram of a locking mechanism of a battery pack corresponding to the second docking mechanism 40. As shown in fig. 6, for convenience of description, in the present embodiment, the locking mechanism corresponding to the second docking mechanism 40 of the battery pack of the second type is a second locking mechanism 60. The second locking mechanism 60 is connected to the battery pack and includes a locking head 61 and a screw 62. The locking head 61 is used for connecting and fixing the battery pack. The locking head 61 is provided with one or more threaded holes 611. The threaded hole 611 may be a blind hole or a through hole, and faces the battery replacement device when the battery replacement device is located below the electric vehicle. The top of the screw 62 has an external thread through which it is screwed into the threaded hole 611. The screw 62 has a shaped hole 63 at the bottom, the shaped hole 63 corresponds to the engaging portion 411, and the inner wall has a stopper (not shown).
Fig. 7 is a schematic structural view of the second docking mechanism 40 in a disassembled state. As shown in fig. 7, the second docking mechanism 40 includes a lock lever 41 and a second driving member 42. Locking lever 41 includes connecting portion 412 and joint portion 411, joint portion 411 is followed the radial direction of connecting portion 412 extends for stretch into back in the dysmorphism hole 63 of second locking mechanism 60, rotate and the joint screw rod 62. The second driving member 42 is connected to the connecting portion 412, and is used for pulling the locking rod 41 to rotate through the connecting portion 412 so as to drive the screw rod 62 to rotate and lock the battery pack. Specifically, the second driving member 42 includes an end cap 421 and a sleeve 422, the sleeve 422 has a cavity extending along the axial direction, and a locking groove 423 extending along the axial direction is formed in an inner wall of the cavity. An end cap 421 is connected to the top of the sleeve 422 and closes the upper part of the cavity, and a locking rod 41 extends from a through hole of the end cap 421. The locking bar 41 further comprises a pin 413, and the pin 413 is embedded in the clamping groove 423. The second docking mechanism 40 further includes an elastic member 323, wherein the elastic member 323 is located in the cavity and abuts against the second driving member 42 and the connecting portion 412, so as to prop up the connecting portion 412 to extend out of the cavity, and then connect to the clamping portion 411. In order to facilitate driving the second driving member 42 to rotate, in the present embodiment, the second docking mechanism 40 further includes a motor 45, and the motor 45 drives the second driving member 42 to rotate through a transmission gear 44. When the second docking mechanism 40 docks the second locking mechanism 60, the clamping portion 411 and the screw 62 are close to each other and extend into the special-shaped hole 63 at the bottom of the screw 62, then the motor 45 drives the clamping portion 411 of the lock rod 41 to rotate through the second driving member 42, the clamping portion 411 is stopped by the stopper to drive the screw 62 to rotate, so that the lock rod 41 can move axially and pull the lock rod 41 through the clamping portion 411, and the battery pack is locked to the second docking mechanism 40 of the battery replacing device. The unlocking process is similar, and the motor 45 rotates reversely to drive the screw rod 62 to rotate reversely, so that the unlocking action is realized.
Based on the above battery swapping device suitable for multiple types of battery packs, a battery swapping method suitable for multiple types of battery packs is described in detail below, and the battery swapping method includes the following steps.
First, vehicle information is received, wherein the vehicle information includes a type of a battery pack.
Then, if it is determined that the battery pack is of the first type, the switching mechanism 20 switches the first docking mechanism 30 to dock the battery pack. In this process, as shown in fig. 4 and 5, the unlocking lever 32 supports the lock link 52 of the first locking mechanism 50 at the unlocking point (direction F shown in fig. 4), and the lock link 52 rotates the locking piece 53 (the lock link 52 and the locking piece 53 move to the dotted line position shown in fig. 4), thereby opening the opening 512 of the locking groove 511. Then, the first connection fork 31 moves the mounting seat of the battery pack laterally, so that the mounting seat moves out of the opening 512 of the locking slot 511, and the battery pack is transferred to the carrying platform 10 of the battery replacing device. On the contrary, the battery replacement device is close to the electric vehicle, the unlocking rod 32 props up the lock link 52 of the first locking mechanism 50, the locking plate 53 is driven to move to open the opening 512 of the locking groove 511, and the fixing seat of the battery pack moves into the locking groove 511 from the opening 512. Then, the first connection fork 31 drives the mounting seat to move laterally in the locking slot 511, the first driving part 311 drives the locking rod 41 to deviate from the locking point, so that the locking rod 52 is reset under the action of gravity, the locking plate 53 is driven to close the opening 512 to lock the battery pack, and then the battery replacement device is far away from the electric vehicle, so as to realize the action of transferring the battery pack to the electric vehicle and complete the butt joint action.
If the battery pack is determined to be of the second type, the switching mechanism switches the second docking mechanism 40 to dock the battery pack. Specifically, in this step, the rotary holder 21 of the switching mechanism 20 is rotated such that the side of the rotary holder 21 connected to the first docking mechanism 30 faces the battery pack to dock the battery pack, and the rotary holder 21 of the switching mechanism 20 is rotated such that the side of the rotary holder 21 connected to the second docking mechanism 40 faces the battery pack to dock the battery pack. In this process, as shown in fig. 6 and 7, the battery replacing apparatus brings the battery pack close to the electric vehicle until the battery pack is connected to the electric vehicle. Then, the motor 45 drives the second driving member 42 to rotate, the second driving member 42 drives the clamping portion 411 of the lock rod 41 to rotate, so as to drive the screw rod 62 to rotate, the squeezing action between the clamping portion 411 and the screw rod 62 is released, so that the clamping portion 411 can rotate in the special-shaped hole 63 to a position corresponding to the special-shaped hole 63, and then withdraw from the special-shaped hole 63, and the unlocking action is completed. Otherwise, the clamping portion 411 extends into the special-shaped hole 63, and the screw rod 62 is driven to rotate under the action of the stop block in the rotating process, so that the battery pack is transferred to the electric vehicle to complete the butt joint action.
The battery replacing device and the method suitable for the multiple types of battery packs are provided with the first docking mechanism 30 and the second docking mechanism 40 which can dock the first type of battery pack and the second type of battery pack, and in the process of replacing the battery pack for the electric vehicle, the first docking mechanism 30 or the second docking mechanism 40 corresponding to the type of the battery pack can be switched to through the switching mechanism 20 according to the different types of battery packs, so that the battery replacing operation of the multiple types of battery packs is suitable.
In several embodiments provided in the present disclosure, it will be apparent to those skilled in the art that the present disclosure is not limited to the details of the above-described exemplary embodiments, and can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the disclosure being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. The terms first, second, etc. are used to denote names, but not any particular order.
Although the present disclosure has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present disclosure.