Unlock Components

Abstract

This invention discloses an unlocking component for unlocking a battery pack on an electric vehicle. The electric vehicle is equipped with a locking mechanism, and the battery pack is locked to the electric vehicle through the locking mechanism. The unlocking component includes: a first unlocking part disposed within the battery pack, used to move the locking mechanism to an unlocking position to release the battery pack from its lock; and a second unlocking part disposed on a battery swapping device, used to move the first unlocking part, initially located within the battery pack, vertically to an extended position to unlock the battery pack. The first unlocking part within the battery pack can serve as a height extension of the second unlocking part, thereby enabling the unlocking of the locking mechanism with a lower-height second unlocking part. This reduces the overall height of the battery swapping device, allowing it to better adapt to the height of the vehicle chassis and facilitating access from under the vehicle chassis.

Description

Technical Field

[0001] This invention relates to the field of battery swapping, and more particularly to an unlocking component. Background Technology

[0002] In recent years, new energy vehicles have developed rapidly. Electric vehicles, which rely on batteries as their driving energy, have the advantages of zero emissions and low noise. As the market share and usage frequency of electric vehicles are increasing, electric commercial vehicles, such as electric heavy-duty trucks and electric light-duty trucks, are gradually appearing in their respective application scenarios. At the same time, battery swapping stations for replacing battery packs of electric trucks have been built.

[0003] The battery swapping station is equipped with battery swapping equipment for replacing battery packs. During operation, the battery swapping equipment moves under the vehicle chassis, and the unlocking part on the battery swapping equipment acts on the locking structure on the vehicle chassis to release the locking mechanism from locking the battery pack. Subsequently, the battery swapping equipment carrying the entire battery pack is moved out from under the vehicle. Existing battery swapping equipment is disclosed in the scheme of "Application No. CN201711244221.3, Invention Title: Shuttle Battery Pack Replacement Equipment and Battery Swapping Station Including Therein".

[0004] However, the solution still has the following problems: the space under the chassis of electric vehicles is limited, especially for heavy trucks, electric light trucks and other models. The space under the chassis is small and the required battery pack size is large. After the battery pack is installed on the chassis of the electric vehicle, the space reserved for the battery swapping equipment to enter and exit the bottom of the vehicle is even smaller. The existing unlocking part is only located on the battery swapping equipment. The unlocking part needs to be very long to reach the locking mechanism on the chassis of the vehicle, which makes the overall height of the battery swapping equipment very large and difficult to enter and exit the space under the chassis of the vehicle. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the problem that the battery swapping equipment in the prior art is difficult to enter and exit the vehicle chassis due to its excessive height, and to provide an unlocking component.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] An unlocking component is provided for unlocking a battery pack on an electric vehicle. The electric vehicle has a locking mechanism, through which the battery pack is locked to the electric vehicle. The unlocking component includes:

[0008] The first unlocking part is located inside the battery pack and is used to drive the locking mechanism to move to the unlocking position to release the battery pack from the lock.

[0009] The second unlocking part is provided on the battery swapping equipment and is used to move the first unlocking part, which is located in the initial position inside the battery pack, in the vertical direction to the extended position to unlock the battery pack.

[0010] During operation, the second unlocking part on the battery swapping device pushes the first unlocking part inside the battery pack upward to push the locking mechanism to the unlocked position. The first unlocking part inside the battery pack can serve as an extension of the second unlocking part in the height direction, thereby enabling the locking mechanism to be unlocked with a lower-height second unlocking part. This reduces the overall height of the battery swapping device, allowing it to better adapt to the height of the vehicle chassis and facilitating passage under the vehicle chassis.

[0011] Preferably, the battery pack has a vertically penetrating receiving cavity, and the first unlocking part includes a push rod mechanism, which is movably installed in the receiving cavity.

[0012] During operation, the second unlocking part of the battery swapping device extends into the receiving cavity and drives the push rod mechanism to extend until the battery pack and locking mechanism abut against each other, thereby unlocking the battery pack.

[0013] Preferably, the second unlocking part is used to push the input end of the bottom of the push rod mechanism and move the push rod mechanism to the extended position. When the push rod mechanism is in the extended position, the output end of the top of the push rod mechanism extends out of the opening of the receiving cavity and is higher than the surface of the battery pack.

[0014] When the output end of the top of the push rod mechanism is in the extended position, it can act on the locking structure to achieve unlocking. The input end of the push rod mechanism is directly pushed by the second unlocking part, which reduces the difficulty of aligning the second unlocking part with the locking mechanism. When unlocking, it is only necessary to align the second unlocking part with the push rod mechanism to achieve pushing, while avoiding interference between the locking mechanism and the surface of the battery pack during the unlocking process.

[0015] Preferably, the locking mechanism includes a bolt and a lock base. The lock base has a locking groove into which the locking shaft of the battery pack enters and locks. The bolt moves relative to the lock base to open or close the locking groove. The output end of the push rod mechanism drives the bolt to the unlocked position to open the locking groove. Thus, the locking mechanism can be unlocked by the push rod mechanism.

[0016] The input end of the push rod mechanism drives the movement of the locking tongue, directly converting the vertical movement of the push rod mechanism into the movement of the locking tongue. This facilitates the opening and unlocking of individual locking slots, improving unlocking efficiency and success rate.

[0017] Preferably, the locking mechanism includes a locking link and an unlocking block. The locking link is connected to the bolt, and the output end acts on the unlocking block on the locking link to drive the bolt to open the locking groove. During operation, the output end applies force to the unlocking block on the locking link to move the locking link upward, thereby driving the bolt to move to the unlocked position.

[0018] By using a push rod mechanism to act on the locking link, multiple locking tongues can be moved to simultaneously open multiple locking slots, thus achieving synchronous unlocking of multiple lock bases and improving unlocking efficiency.

[0019] Preferably, the first unlocking part includes a reset member for resetting the push rod mechanism to its initial position after the force of the second unlocking part is removed.

[0020] A reset mechanism is provided to allow the second unlocking part to be reset into the battery pack after unlocking is completed, facilitating the next unlocking operation and thus forming an operation loop for repeated battery pack unlocking actions.

[0021] Preferably, the battery swapping device includes a disassembly and assembly platform, and a second unlocking part is disposed on the disassembly and assembly platform. When the disassembly and assembly platform is located at the battery removal position below the electric vehicle, the second unlocking part is at least partially inserted into the battery pack and acts on the first unlocking part to extend the first unlocking part to unlock the battery pack.

[0022] By setting up a disassembly and assembly platform, it is easy to move the second unlocking part vertically or horizontally. At the same time, when removing the battery, the second unlocking part is inserted into the battery pack to abut against and push the first unlocking part out to perform the unlocking operation. This also serves to position and connect the battery pack with the disassembly and assembly platform of the battery swapping equipment, making it easier to move the battery pack horizontally in the future.

[0023] Preferably, when the disassembly platform only bears the weight of the battery pack, the second unlocking part is at least partially inserted into the battery pack.

[0024] By inserting the second unlocking part into the battery pack, the positioning of the disassembly and assembly platform and the battery pack is achieved, and the relative positions of the battery pack, the second unlocking part, and the tray in the horizontal direction are fixed, which facilitates the synchronous movement of the battery pack by the disassembly and assembly platform.

[0025] Preferably, the disassembly and assembly platform includes a first mobile platform, and the second unlocking part includes a second unlocking rod. The second unlocking rod is disposed on the first mobile platform, and the first mobile platform is provided with a battery support part for elastically supporting the battery pack. When the disassembly and assembly platform is located at the battery disassembly position under the electric vehicle, the second unlocking rod extends at least partially out of the surface of the battery support part to be inserted into the battery pack.

[0026] By setting up a battery support section, the battery pack is flexibly supported, allowing it to be in a flexible load-bearing state on the disassembly and assembly platform. This buffers the battery pack during placement on the platform, preventing hard collisions. Simultaneously, during battery pack disassembly or installation, the battery pack can be floated during alignment of the swapping equipment, battery pack, and electric vehicle. This allows for adaptive adjustments to the angle of installation or removal of the battery pack at the bottom of the electric vehicle, preventing over-positioning that could lead to disassembly difficulties or battery swapping failures. Furthermore, the second unlocking lever is inserted into the battery pack, facilitating the unlocking operation by acting on the first unlocking part within the battery pack. This achieves positioning of the disassembly and assembly platform and the battery pack, ensuring relative stability of the positions of the battery pack, the platform, and the second unlocking lever, and facilitating synchronous movement of the battery pack by the platform.

[0027] Preferably, the battery support includes a tray and an elastic mechanism. The tray is connected to the first moving platform via the elastic mechanism, and the tray has a through hole for the second unlocking lever to extend out.

[0028] The elastic mechanism can buffer the impact force when the battery falls onto the tray, reducing the damage to the battery swapping equipment and improving its service life. It also enables floating disassembly and installation of the battery pack, adapting to the angle of battery pack installation or removal at the bottom of the electric vehicle and making adaptive adjustments for alignment. Through holes are provided to facilitate the movement of the tray during battery pack installation and removal, preventing the tray from deviating from the horizontal position of the second unlocking lever, which would cause the second unlocking lever to align with the first unlocking part inside the battery pack.

[0029] Preferably, the battery swapping equipment also includes a lifting mechanism for lifting the disassembly platform to the battery removal position, so that the second unlocking part pushes out of the first unlocking part.

[0030] This allows the second unlocking part to move vertically to a position where it contacts the first unlocking part, thus enabling the unlocking operation.

[0031] Preferably, when the first unlocking part drives the locking mechanism to the unlocking position, the first moving platform carries the battery pack and is used to drive the battery pack to move horizontally along the first direction to disassemble the battery pack.

[0032] The movement of the first moving platform causes the locking shaft that drives the battery pack to move from the locking point in the locking groove to the opening, and then out of the locking mechanism through the opening.

[0033] Preferably, the first moving platform is also used to drive the battery pack to move horizontally in a direction opposite to the first direction to the unlocking pre-tightening position, so as to release the restriction on the locking mechanism and allow the locking mechanism to move to the unlocking position under the push of the first unlocking part.

[0034] This allows the locking mechanism to move smoothly to the unlocked position under the push of the first unlocking part, thus improving the reliability and service life of the locking mechanism.

[0035] The positive and progressive effects of this invention are as follows:

[0036] The first unlocking part inside the battery pack can serve as an extension of the second unlocking part in the height direction, thereby enabling the locking mechanism to be unlocked using the second unlocking part at a lower height. This reduces the overall height of the battery swapping equipment, allowing it to better adapt to the height of the vehicle chassis and facilitate passage under the vehicle chassis. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of a battery swapping device according to an embodiment of the present invention;

[0038] Figure 2 This is a three-dimensional structural diagram of a disassembly and assembly platform according to an embodiment of the present invention;

[0039] Figure 3 This is a three-dimensional structural diagram of a first mobile platform and a second mobile platform driving device according to an embodiment of the present invention;

[0040] Figure 4 This is a three-dimensional structural diagram of a disassembly and assembly platform lifting device according to an embodiment of the present invention;

[0041] Figure 5 This is a three-dimensional structural diagram of a battery pack according to an embodiment of the present invention;

[0042] Figure 6 This is a three-dimensional structural diagram of the first unlocking part on a battery pack according to an embodiment of the present invention;

[0043] Figure 7 This is a cross-sectional view of the first unlocking part according to an embodiment of the present invention;

[0044] Figure 8 This is a cross-sectional structural diagram of the locking mechanism in the locked state according to an embodiment of the present invention;

[0045] Figure 9 This is a cross-sectional view of the locking mechanism in the unlocked state according to an embodiment of the present invention;

[0046] Explanation of reference numerals in the attached figures:

[0047] 10 battery swapping devices

[0048] First Unlocking Section 100

[0049] First unlocking lever 110

[0050] Input terminal 111

[0051] Output terminal 112

[0052] Reset component 120

[0053] 130 cavity

[0054] Locking mechanism 200

[0055] Lock base 210

[0056] Locking groove 211

[0057] Locking tongue 220

[0058] Locking rod 230

[0059] Unlock Block 231

[0060] Second unlocking section 300

[0061] Second unlocking lever 310

[0062] Battery pack 400

[0063] Locking shaft 410

[0064] Disassembly and assembly platform 500

[0065] First Mobile Platform 510

[0066] First slide rail 511

[0067] First horizontal movement device 512

[0068] Positioning rod 513

[0069] Pallet 514

[0070] Flexible mechanism 515

[0071] Second mobile platform 520

[0072] Limit rod 521

[0073] Second slide rail 522

[0074] Second horizontal movement device 523

[0075] Lifting mechanism 530

[0076] Cam 531 Detailed Implementation

[0077] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0078] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0079] Combination Figure 1 , Figure 5 and Figure 6 This embodiment provides an unlocking component for unlocking a battery pack 400 on an electric vehicle. The chassis of the electric vehicle is provided with a locking mechanism 200, and the battery pack 400 is locked to the electric vehicle through the locking mechanism 200.

[0080] The unlocking assembly includes a first unlocking part 100 disposed within the battery pack 400, which drives the locking mechanism 200 to move to the unlocking position to release the lock on the battery pack 400; it also includes a second unlocking part 300 disposed on the battery swapping device 10, which causes the first unlocking part 100, which is initially located within the battery pack 400, to move vertically to the extended position to unlock the battery pack 400.

[0081] Specifically, the first unlocking part 100, the second unlocking part 300, and the locking mechanism 200 are located in the same vertical direction. During operation, the second unlocking part 300 on the battery swapping device 10 pushes the first unlocking part 100 inside the battery pack 400 upward and pushes the locking mechanism 200 against the unlocked position.

[0082] With this structure, the second unlocking part 300 on the battery swapping device 10 can indirectly apply force to the locking mechanism 200 through the first unlocking part 100 inside the battery pack 400, thus unlocking it. The first unlocking part 100 can serve as an extension of the second unlocking part 300 in the height direction, allowing the locking mechanism 200 to be unlocked with a lower-height second unlocking part 300. This reduces the overall height of the battery swapping device 10, making it more adaptable to the height of the vehicle chassis and facilitating access from under the vehicle chassis. Furthermore, placing the second unlocking part 300 within the battery pack 400 does not occupy additional height space, resulting in a lower and more compact overall structure, making it easier to access the vehicle chassis.

[0083] Combination Figure 7 The battery pack 400 has a vertically penetrating receiving cavity 130. The upper outlet of the receiving cavity 130 corresponds to the locking mechanism 200, and the lower inlet corresponds to the second unlocking part 300 on the battery swapping device 10. The first unlocking part 100 includes a push rod mechanism, which is movably installed in the receiving cavity 130. In this invention, "movably installed" means that the push rod mechanism can move up and down relative to the receiving cavity 130.

[0084] Specifically, the push rod mechanism includes a first unlocking rod 110 and a mounting member disposed within the receiving cavity 130. The first unlocking rod 110 is mounted to the battery pack 400 via the mounting member and is elastically connected to the mounting member. The elastically connected first unlocking rod 110 can reduce impact, avoid excessive impact on the locking mechanism 200 during unlocking, and improve service life. The elastic connection can be achieved through known elastic structural members, or through various known structures that achieve contraction and expansion via liquid or gas media, such as a cylinder. While the elastic connection reduces impact, in other embodiments, the first unlocking rod 110 and the mounting member can also be connected in a non-elastic manner, such as a rigid connection.

[0085] The second unlocking part 300 is used to push the input end 111 at the bottom of the push rod mechanism to move the push rod mechanism to the extended position. When the push rod mechanism is in the extended position, the output end 112 at the top of the push rod mechanism extends out of the opening of the receiving cavity 130 and is higher than the surface of the battery pack 400. By directly pushing the input end 111 of the push rod mechanism with the second unlocking part 300, the difficulty of aligning the second unlocking part 300 with the locking mechanism 200 is reduced. During unlocking, it is only necessary to align the second unlocking part 300 with the push rod mechanism to achieve the push, while avoiding interference between the locking mechanism 200 and the surface of the battery pack 400 during the unlocking process.

[0086] Specifically, the input end 111 is the bottom of the first unlocking lever 110, and the output end 112 is the top of the first unlocking lever 110. During unlocking, the second unlocking part 300 penetrates the receiving cavity 130 and abuts against the input end 111, causing the first unlocking lever 110 to rise relative to the receiving cavity 130. This, in turn, causes the output end 112 to extend out of the receiving cavity 130 and be higher than the surface of the battery pack 400. This allows the output end 112 to act on the locking mechanism 200, thus unlocking the locking mechanism 200.

[0087] The first unlocking part 100 includes a reset member 120, which is used to reset the push rod mechanism to the initial position after the force of the second unlocking part 300 is removed.

[0088] Specifically, the reset element 120 is an elastic element sleeved on the first unlocking lever 110. This elastic element applies a downward force to the first unlocking lever 110 to return it to its initial position within the battery pack 400. Additionally, this elastic element absorbs impacts, preventing excessive impact on the locking mechanism 200 during unlocking and improving its service life. The sleeved arrangement of the elastic element also reduces space utilization, making the structure more compact. The first unlocking lever 110 also guides and limits the elastic element, preventing it from dislodging. In this embodiment, the elastic element is preferably a spring, but it can also be a torsion spring, a disc spring, or other known elastic structural elements.

[0089] In the initial state, i.e., when not being abutted by the second unlocking part 300, the bottom end of the first unlocking rod 110 abuts against the limiting plate in the receiving cavity 130. The limiting plate limits the first unlocking rod 110, preventing it from falling off.

[0090] In the unlocked state, the second unlocking part 300 enters the receiving cavity 130, overcoming the elastic force of the reset member 120 and causing the first unlocking rod 110 to extend upward above the battery pack 400.

[0091] In the reset state, the second unlocking part 300 leaves the receiving cavity 130, the elastic potential energy of the reset member 120 is released and drives the first unlocking rod 110 downward to abut against the limiting plate, thereby returning to the initial position.

[0092] The reset component 120 is provided so that after unlocking is completed, the second unlocking part 300 can be reset into the battery pack, which is convenient for the next unlocking operation. This forms an operation closed loop, which allows the second unlocking part 300 to repeat the unlocking action multiple times.

[0093] Combination Figure 8 and Figure 9 In this embodiment, the locking mechanism 200 includes a latch 220 and a lock base 210. The lock base 210 has a locking groove 211 into which the locking shaft 410 of the battery pack 400 enters and locks. The latch 220 moves relative to the lock base 210 to open or close the locking groove 211. The output end 112 of the push rod mechanism drives the latch 220 to the unlock position to open the locking groove 211. The output end 112 of the push rod mechanism can directly act on one end of the latch 220, driving the latch 220 to the unlock position, thereby achieving unlocking. By driving the latch 220 to move through the input end 112 of the push rod mechanism, the vertical movement of the push rod mechanism is directly converted into the movement of the latch 220, which facilitates the opening and unlocking operation of a single locking groove 211, improving unlocking efficiency and success rate.

[0094] The locking mechanism 200 also includes a locking link 230 and an unlocking block 231. The locking link 230 is connected to the locking tongue 220, and the output end 112 can act on the locking link 230 to drive the locking tongue 220 to open the locking groove 211.

[0095] Specifically, the locking link 230 is movably connected to multiple lock bases 210 via multiple latches 220. The bottom of the locking link 230 has an unlocking surface extending along its length. The first unlocking part 100 can abut against the unlocking surface and lift the locking link 230 under external force, thereby causing the latches 220 to open the locking groove 211. Specifically, both ends of the multiple latches 220 are hinged to the lock base 210 and the locking link 230. During the lifting of the locking link 230, the latches 220 rotate, opening the space of the locking groove 211, allowing the locking shaft 410 on the battery pack 400 to move horizontally to the right. At the same time, the lock base 210 remains fixed, so the movement trajectory of the locking link 230 is not a linear translation, but rather an upward movement combined with a horizontal movement to the right. This, in turn, causes the latches 220 to rotate to the right, thereby opening the space of the locking groove 211 for the locking shaft 410 to move out.

[0096] By acting on the locking link 230 through the push rod mechanism, multiple locking tongues 220 can be moved to simultaneously open multiple locking grooves 211, thereby realizing the synchronous unlocking of multiple lock bases 210 and improving unlocking efficiency.

[0097] As the locking shaft 410 moves horizontally to the right within the locking groove 211, the first unlocking rod 110 continuously abuts against the unlocking surface, keeping the locking tongue 220 in the open state. This ensures that the locking component can be smoothly moved out of the locking groove 211, improving the reliability of unlocking.

[0098] The locking link 230 includes an unlocking block 231 extending toward the lock base 210. The bottom of the unlocking block 231 has a horizontally extending unlocking surface, and the first unlocking rod 110 acts on this unlocking surface. The horizontally extending unlocking surface allows the first unlocking part 100 to abut against the unlocking block 231 during movement relative to the locking link 230, preventing it from getting stuck and improving unlocking stability. The horizontal unlocking surface provides greater tolerance; even if the first unlocking rod 110 is misaligned or has a torsional angle, it will always remain within the unlocking surface.

[0099] In other embodiments, the unlocking surface may also be configured as a concave square, a concave arc, a concave triangle, or a concave rhombus, extending along the length of the locking rod 230. A concave square unlocking surface can restrict the first unlocking rod 110, preventing it from detaching from the unlocking surface during unlocking. A concave arc, triangle, or rhombus unlocking surface can form an optimal unlocking line with the first unlocking rod 110 and allow for appropriate misalignment, enabling the first unlocking rod 110 to move within the unlocking surface along the length of the locking rod 230 and facilitating the stopping of the unlocking device.

[0100] Combination Figure 1 , Figure 2 and Figure 3 In this embodiment, the battery swapping device 10 includes a disassembly platform 500 and a second unlocking part 300 disposed on the disassembly platform 500. When the disassembly platform 500 is located at the battery removal position below the electric vehicle, the second unlocking part 300 is at least partially inserted into the battery pack 400 and acts on the first unlocking part 100, causing the first unlocking part 100 to extend to unlock the battery pack 400.

[0101] By setting up the disassembly and assembly platform 500, it is easy to move the second unlocking part 300 in a vertical or horizontal direction. At the same time, when removing the battery, the second unlocking part 300 is inserted into the battery pack 400 to abut against and push the first unlocking part 100 to extend for unlocking. This also serves to position and connect the battery pack 400 with the disassembly and assembly platform 500 of the battery swapping equipment 10, making it easier to move the battery pack 400 in a horizontal direction laterally.

[0102] Preferably, the disassembly / removal platform 500 includes a first movable platform 510. The first movable platform 510 is used to support the battery pack 400. The second unlocking part 300 includes a second unlocking rod 310, which is disposed on the first movable platform 510. The first movable platform 510 is also provided with a battery support part for elastically supporting the battery pack 400. When the disassembly / removal platform 500 is located in the battery removal position under the electric vehicle, the second unlocking rod 310 extends at least partially out of the surface of the battery support part to insert into the battery pack 400.

[0103] By setting up a battery support section, the battery pack 400 is elastically supported, so that the battery pack 400 on the disassembly and assembly platform 500 is in a flexible load-bearing state. This buffers the battery pack 400 during placement on the disassembly and assembly platform 500 to avoid hard collisions. At the same time, during the disassembly or installation of the battery pack 400, while aligning the battery swapping equipment 10, the battery pack 400, and the electric vehicle, the battery pack 400 can be floated for disassembly and installation. This allows for adaptive adjustments to the angle of installation or disassembly of the battery pack at the bottom of the electric vehicle to ensure alignment and avoid over-positioning that could cause difficulties in disassembly and assembly or battery swapping failure. Meanwhile, the second unlocking rod 310 is inserted into the battery pack 400, which facilitates the unlocking operation of the first unlocking part 100 inside the battery pack 400. It also achieves the positioning of the disassembly and assembly platform 500 and the battery pack 400, and achieves the relative fixation of the battery pack 400, the disassembly and assembly platform 500, and the second unlocking rod 310 in the horizontal direction, which facilitates the synchronous movement of the battery pack by the disassembly and assembly platform.

[0104] In this embodiment, the battery support includes a tray 514 and an elastic mechanism 515. The tray 514 is connected to the first moving platform 510 via the elastic mechanism 515. There are two trays 514, which are respectively disposed on the upper sides of the first moving platform 510. The elastic mechanism 515 can be a spring or other mechanism that can provide elastic restoring force when compressed.

[0105] The tray 514 is also provided with a through hole for the second unlocking lever 310 to extend. When unlocking, the second unlocking lever 310 can extend from the through hole and be inserted into the battery pack 400, acting on the first unlocking part 100 in the battery pack 400 to unlock the battery pack 400.

[0106] Specifically, when the tray 514 is in the battery removal position, the tray 514 abuts against the battery pack 400 on the vehicle chassis. The reaction force exerted by the battery pack 400 on the tray 514 compresses the elastic mechanism 515 between the tray 514 and the first moving platform 510, causing the tray 514 to descend relative to the first moving platform 510. The second unlocking lever 310 on the first moving platform 510 extends out of the tray 514 and acts on the battery pack 400 to push out the first unlocking part 100 on the battery pack 400, thereby realizing the unlocking operation.

[0107] The elastic mechanism 515 can buffer the impact force when the battery pack 400 falls onto the tray 514, reducing the damage to the battery swapping equipment caused by the impact force of the battery pack 400 falling, and improving the service life of the battery swapping equipment 10. At the same time, it can realize the floating disassembly and floating installation of the battery pack 400, and can adapt to the angle of installation or disassembly of the battery pack 400 at the bottom of the electric vehicle, and make adaptive adjustments for alignment. The through holes on the tray 514 facilitate the movement of the tray 514 during the disassembly and assembly of the battery pack 400, and prevent the tray 514 from deviating from the horizontal position of the second unlocking rod 310, which would cause the second unlocking rod 310 to be misaligned with the first unlocking part 100 inside the battery pack 400.

[0108] In this embodiment, when the disassembly platform 500 only bears the weight of the battery pack 400, the second unlocking part 300 is at least partially inserted into the battery pack 400. The tray 514 only bears the battery pack 400, that is, no other external force acts on the tray 514 at this time. The tray 514 moves only under the gravity of the battery pack 400 and compresses the elastic mechanism 515 under the tray 514. The second unlocking rod 310 extends out of the tray 514 to insert into the battery pack 400, realizing the positioning of the tray 514 and the battery pack 400, and realizing the relative fixation of the battery pack 400, the tray 514, and the second unlocking rod 310 in the horizontal direction, which facilitates the synchronous movement of the tray 514 and the battery pack 400.

[0109] In this embodiment, when the first unlocking part 100 moves the locking mechanism 200 to the unlocking position, the first moving platform 510 carries the battery pack 400 and is used to move the battery pack 400 horizontally along the first direction to disassemble the battery pack 400.

[0110] The battery pack 400 is unlocked from the locking mechanism 200 on the electric vehicle by the first unlocking part 100. After the locking mechanism 200 moves to the unlocked state, the locking shaft 410 of the battery pack 400 is still in the locking groove 211. The first moving platform 510 moves horizontally in the first direction to move the battery pack 400 to the opening of the locking groove 211, so that the locking shaft 410 leaves the lock base 210 from the opening and gradually disengages from the locking mechanism 200 of the electric vehicle, realizing the disassembly and movement of the battery pack 400. The operation is simple and improves the disassembly efficiency of the battery pack 400.

[0111] When the first unlocking part 100 moves the locking mechanism 200 to the unlocked position, the first moving platform 510 carries the battery pack 400 and is used to move the battery pack 400 horizontally in a first direction to disassemble the battery pack 400. Specifically, the first direction is the direction in which the first moving platform 510 moves the locking shaft 410 on the battery pack 400 toward the opening of the locking groove 211, thereby moving the locking shaft 410 from the opening of the locking groove 211 onto the first moving platform 510.

[0112] The first moving platform 510 is also used to drive the battery pack 400 to move horizontally in the opposite direction to the first direction to the unlock pre-tightening position, so as to release the restriction on the locking mechanism 200 and enable the locking mechanism 200 to move to the unlock position under the push of the first unlocking part 100.

[0113] In the locked state, the locking shaft 410 of the battery pack 400 abuts against the locking tongue 220 of the locking mechanism 200 to ensure that the battery pack 400 is securely locked. At this time, the first unlocking rod 110 needs to apply a large lifting force to the locking mechanism 200 to make the locking tongue 220 overcome the abutment force of the locking shaft 410 and rotate to open the opening. The contact point between the locking shaft 410 and the locking tongue 220 of the battery pack 400 will be worn, which may easily lead to damage to the first unlocking rod 110, the locking shaft 410 or the locking mechanism 200, and may also lead to unlocking failure. Therefore, the battery pack 400 is first moved horizontally by the first moving platform 510 in the opposite direction to the first direction by a preset distance, so that there is a certain distance between the locking shaft 410 and the locking tongue 220 of the battery pack 400 in the horizontal direction, which makes it easier for the first unlocking rod 110 to push open the locking link, while avoiding wear on the locking mechanism 200 and the locking shaft 410.

[0114] In this embodiment, the first mobile platform 510 can slide along the first slide rail 511 provided on the disassembly platform 500, and the extension direction of the first slide rail 511 is perpendicular to the movement direction of the battery swapping device 10.

[0115] The first moving platform 510 is connected to the first horizontal moving device 512. The first horizontal moving device 512 includes a rotary motor and a lead screw connected to the rotary motor. The lead screw passes through a protrusion at the bottom of the first moving platform 510 or the second moving platform 520 and engages with it by threads, thereby enabling the first moving platform 510 to move along the first guide rail, or to move the second moving platform 520 along the second guide rail.

[0116] The first mobile platform 510 is also provided with a positioning rod 513 in the middle. The positioning rod 513 can be aligned with the positioning hole on the battery pack 400 to position the battery pack 400 when the battery swapping device 10 moves to the battery removal position.

[0117] In other embodiments, the battery swapping device 10 also includes a lifting mechanism 530 for lifting the removal platform 500 to the battery removal position, so that the second unlocking part 300 abuts against and pushes out the first unlocking part 100 to the extended position.

[0118] Combination Figure 3 and Figure 4 Specifically, the lifting mechanism 530 includes a cam 531 located below the disassembly / assembly platform 500 and a slider connected to the disassembly / assembly platform 500 on a vertical guide rail. The distal end of the cam 531 can lift the disassembly / assembly platform 500 to control its ascent when it rises along the running trajectory, thereby driving the second unlocking part 300 to rise and push out the first unlocking part 100. When descending along the running trajectory, it can lower the disassembly / assembly platform 500, which remains in contact with it, thereby driving the first unlocking part 100 to descend. Of course, in other embodiments, the lifting device can also be a slider that runs along a lifting / lowering trajectory, with the disassembly / assembly platform 500 connected to the slider, or a vertically arranged lead screw that passes through the disassembly / assembly platform 500 to drive its lifting / lowering.

[0119] In other embodiments, the disassembly and assembly platform further includes a second movable platform 520, which is slidable along a second slide rail 522 provided on the disassembly and assembly platform 500. The first slide rail 511 and the second slide rail 522 are parallel to each other, and the extending directions of the first slide rail 511 and the second slide rail 522 are perpendicular to the moving direction of the power swapping device 10. The second movable platform 520 is connected to a second horizontal moving device 523. The second horizontal moving device 523 has the same structure as the first horizontal moving device 512.

[0120] The second mobile platform 520 has two limiting rods 521 at the end away from the first mobile platform 510. The two limiting rods 521 can be aligned with the limiting holes on the vehicle chassis when the battery swapping equipment 10 is in the battery removal position so that the battery swapping equipment 10 is relatively fixed to the vehicle.

[0121] During battery removal, the first moving platform 510 moves horizontally until the positioning rod 513 aligns with the positioning hole on the battery pack 400, and the second unlocking rod 310 aligns with the receiving cavity 130 on the battery pack 400. The second moving platform 520 moves horizontally until the limiting rod 521 aligns with the limiting hole on the vehicle chassis. Subsequently, the removal platform 500 rises, and the positioning rod 513 extends into the positioning hole of the battery pack 400 to position the battery pack 400. The second unlocking rod 310 inserts into the receiving cavity 130 within the battery pack 400, pushing the first unlocking part 100 to move the locking mechanism 200 to the locked position, thereby opening the locking groove 211 and unlocking the battery pack 400. The limiting rod inserts into the limiting hole on the vehicle chassis to position the battery swapping equipment and the vehicle.

[0122] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. An unlocking assembly for unlocking a battery pack on an electric vehicle, wherein a locking mechanism is provided on the electric vehicle, and the battery pack is locked and connected to the electric vehicle through the locking mechanism, characterized in that, The unlocking assembly comprises: A first unlocking part arranged in the battery pack and configured to drive the locking mechanism to move to an unlocking position to release the locking of the battery pack, wherein the battery pack is provided with a receiving cavity extending in a vertical direction, and the first unlocking part comprises a ejector rod mechanism movably arranged in the receiving cavity; A second unlocking part arranged on the battery swap device and configured to drive the first unlocking part arranged in the initial position in the battery pack to move to an extended position in the vertical direction to unlock the battery pack.

2. The unlock assembly of claim 1, wherein: The second unlocking part is configured to push the input end of the bottom of the ejector rod mechanism and drive the ejector rod mechanism to the extended position, and when the ejector rod mechanism is in the extended position, the output end of the top of the ejector rod mechanism extends out of the opening of the receiving cavity and is higher than the surface of the battery pack.

3. The unlock assembly of claim 2, wherein: The locking mechanism comprises a lock tongue and a lock base, the lock base is provided with a locking groove for the lock shaft of the battery pack to enter and be locked, the lock tongue is movable relative to the lock base to open or close the locking groove, and the output end of the ejector rod mechanism drives the lock tongue to move to the unlocking position to open the locking groove.

4. The unlock assembly of claim 3, wherein: The locking mechanism comprises a lock connecting rod and an unlocking block, the lock connecting rod is connected with the lock tongue, and the output end of the lock connecting rod acts on the unlocking block on the lock connecting rod to drive the lock tongue to open the locking groove.

5. The unlock assembly of claim 1, wherein: The first unlocking part comprises a reset member configured to reset the ejector rod mechanism to the initial position after the action force of the second unlocking part is removed.

6. The unlock assembly of claim 1, wherein: The battery swap device comprises a dismounting platform, and the second unlocking part is arranged on the dismounting platform, when the dismounting platform is located at a battery dismounting position below the electric vehicle, the second unlocking part is at least partially inserted into the battery pack to act on the first unlocking part to drive the first unlocking part to extend to unlock the battery pack.

7. The unlock assembly of claim 6, wherein: When the dismounting platform only bears the weight of the battery pack, the second unlocking part is at least partially inserted into the battery pack.

8. The unlock assembly of claim 6, wherein: The dismounting platform comprises a first moving platform, and the second unlocking part comprises a second unlocking rod arranged on the first moving platform, the first moving platform is provided with a battery support part configured to elastically support the battery pack, when the dismounting platform is located at the battery dismounting position below the electric vehicle, the second unlocking rod is at least partially extended out of the surface of the battery support part to be inserted into the battery pack.

9. The unlock assembly of claim 8, wherein: The battery support part comprises a tray and an elastic mechanism, the tray is connected with the first moving platform through the elastic mechanism, and the tray is provided with a through hole for the second unlocking rod to extend out of.

10. The unlock assembly of claim 6, wherein: The battery swap device further comprises a lifting mechanism configured to lift the dismounting platform to the battery dismounting position to abut and push the first unlocking part to the extended position.

11. The unlock assembly of claim 8, wherein: When the first unlocking part drives the locking mechanism to move to the unlocking position, the first moving platform bears the battery pack and is configured to drive the battery pack to move horizontally in a first direction to dismount the battery pack.

12. The unlock assembly of claim 11, wherein: The first moving platform is further configured to drive the battery pack to move horizontally in a direction opposite to the first direction to an unlocking pre-tightening position to release the restriction on the locking mechanism, so that the locking mechanism is driven by the first unlocking part to move to the unlocking position.

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