Battery compartment unlocking driving device and transfer trolley

Abstract

This invention provides a battery compartment unlocking drive device and a transfer trolley. The battery compartment unlocking drive device includes an actuating component, a driving component, a driving transmission component, and a guide limiting component. The driving component drives the actuating component to slide horizontally in a first direction through the driving transmission component. The guide limiting component has a receiving groove with an opening at the top. The actuating component is disposed in the receiving groove and can extend or retract through the opening at the top of the receiving groove. This battery compartment unlocking drive device is an independent device that can be set up independently of the battery compartment. The horizontal sliding of the actuating component actuates the sliding component on the battery compartment to slide horizontally, thereby actuating the unlocking mechanism on the battery compartment to unlock it. Since the battery compartment unlocking drive device is no longer located on the battery compartment, the structure of the battery compartment can be simplified, thereby reducing the structural complexity and manufacturing cost of battery-swapping electric vehicles.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle battery swapping technology, specifically a battery compartment unlocking drive device and a transfer trolley equipped with the battery compartment unlocking drive device. Background Technology

[0002] In some related technologies, battery-swapping electric vehicles have a fixed undercarriage frame at the bottom of the vehicle. The bottom wall of the undercarriage frame has a battery compartment inlet and outlet. The battery compartment is detachably located inside the undercarriage frame and contains a battery. When swapping batteries, the battery compartment, together with the battery, enters and exits the undercarriage frame from the bottom of the undercarriage frame through the battery compartment inlet and outlet.

[0003] The battery compartment and the vehicle underframe are equipped with interlocking snap-fit ​​structures to secure the battery compartment to the underframe. The battery compartment also features a corresponding unlocking mechanism and an unlocking drive mechanism to unlock it and allow it to detach from the underframe. The unlocking mechanism includes a sliding component that needs to slide horizontally, while the unlocking drive mechanism drives the sliding component to slide horizontally, thereby unlocking the battery compartment.

[0004] In related technologies, both the unlocking mechanism and the unlocking drive mechanism are located on the battery compartment, which makes the battery compartment structure complex and requires power to be connected to the battery compartment. Since the battery compartment is part of the vehicle, this leads to the aforementioned battery-swapping electric vehicle having a complex structure and increased manufacturing costs. Summary of the Invention

[0005] This utility model provides a battery compartment unlocking drive device and a transfer trolley, which can solve the problem in related technologies where the structural components used to unlock the battery compartment are all located inside the battery compartment, resulting in complex structure and high manufacturing cost of battery swapping electric vehicles.

[0006] To achieve the above-mentioned technical effects, the technical solution of the battery compartment unlocking drive device proposed in this utility model is a battery compartment unlocking drive device, comprising: Actuating component; Drive components; A guide limiting component has a receiving groove formed on it, the top of the receiving groove has an opening, the actuating component is disposed in the receiving groove, and can extend or retract through the top opening of the receiving groove. A drive transmission component has a first end connected to the output end of the drive component and a second end connected to the guide limiting component. The drive component drives the guide limiting component and the actuating component to slide horizontally in a first direction through the drive transmission component.

[0007] In some embodiments, the drive transmission component is a steel wire rope; The battery compartment unlocking drive device also includes: The first elastic reset component is connected to the guide limiting component, and its elastic force is used to drive the guide limiting component and the toggle component to slide horizontally and reset in a second direction opposite to the first direction.

[0008] In some embodiments, the battery compartment unlocking drive device further includes: A wire rope routing limit component is used to limit the routing direction of the wire rope.

[0009] In some embodiments, the battery compartment unlocking drive device further includes: A linear guide rail slider assembly includes a linear guide rail, a first slider and a second slider that slide in cooperation with the linear guide rail, the first slider and the second slider being spaced apart, a guide limiting component being fixedly connected to the second slider, a receiving groove extending vertically, and a toggle component sliding in cooperation with the receiving groove in the vertical direction. A sliding frame is fixedly connected to the first slider and connected to the first end of the drive transmission component. An inclined slide is formed on the sliding frame, and a guide shaft that slides with the inclined slide is formed on the actuating component. The second elastic reset component has an elastic force used to drive the toggle component to reset and extend through the top opening of the receiving groove.

[0010] In some embodiments, a limiting hole is formed on the side of the guide limiting member, which communicates with the receiving groove and extends vertically. The guide shaft passes through the limiting hole and slides and guides the limiting hole vertically. The second elastic reset member is located in the receiving groove and at the bottom of the actuating member.

[0011] In some embodiments, both the lower and upper top walls of the inclined slide are horizontal.

[0012] In some embodiments, a transfer trolley is also proposed, comprising: A support platform, used to support the battery compartment and the batteries inside; A lifting mechanism is used to lift the support platform. The mounting frame is provided, the lifting mechanism is mounted on the mounting frame, and the support platform is located on top of the lifting mechanism; The battery compartment unlocking drive device is the same as described above, wherein the toggle component and the guide limiting component are disposed on the support platform, and the drive component is disposed on the mounting frame.

[0013] In some embodiments, there are two sets of battery compartment unlocking drive devices. In one set, the actuating component and the guide limiting component of the battery compartment unlocking drive device are located on one side of the support platform, and in the other set, the actuating component and the guide limiting component of the battery compartment unlocking drive device are located on the opposite side of the support platform.

[0014] Compared with the prior art, the present invention has the following advantages and positive effects: 1. The battery compartment unlocking drive device of this utility model is an independent device that can be set up independently of the battery compartment. The drive component drives the actuating component to slide horizontally in the first direction through the drive transmission component, thereby actuating the sliding part on the battery compartment to slide horizontally, so as to activate the unlocking mechanism on the battery compartment and realize unlocking. Since the battery compartment unlocking drive device of this utility model is no longer set on the battery compartment, the structure of the battery compartment can be simplified, thereby reducing the structural complexity and manufacturing cost of the battery swapping electric vehicle, as well as reducing the failure rate and maintenance cost of the vehicle itself. 2. The battery compartment unlocking drive device of this utility model is convenient for maintenance at any time, does not affect the normal operation of the vehicle, and improves the user experience; 3. A drive transmission component is set between the drive component and the actuation component, instead of a direct connection. This allows the drive component to be installed in a suitable location, which is beneficial for making reasonable use of space. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the transfer trolley in some embodiments of the present invention; Figure 2 This is a perspective view of the vehicle underframe involved in some embodiments of the present utility model; Figure 3 This is a perspective view of the vehicle underframe involved in some embodiments of the present invention. Figure 4 This is a perspective view of the battery compartment in some embodiments of the present invention. Figure 5 This is a perspective view of the battery compartment from another angle in some embodiments of this utility model; Figure 6 This is a perspective view of the battery compartment involved in some embodiments of the present invention. Figure 7 This is a schematic diagram of the battery compartment structure after omitting the outer cover in some embodiments of this utility model; Figure 8 This is a perspective view of the battery compartment unlocking mechanism involved in some embodiments of the present invention. Figure 9 This is a perspective view of the battery compartment unlocking mechanism involved in some embodiments of the present invention. Figure 10 This is a bottom perspective perspective view of the sliding component of the battery compartment unlocking mechanism involved in some embodiments of this utility model; Figure 11 This is a schematic diagram of the assembly structure of the battery compartment and the vehicle underframe involved in some embodiments of this utility model; Figure 12 for Figure 11 Side view; Figure 13 for Figure 12 AA section view; Figure 14 for Figure 13 Enlarged view of part B; Figure 15 This is a perspective view of the transfer trolley when the toggle component is in the retracted state in some embodiments of the present invention. Figure 16 for Figure 15 Enlarged view of part C; Figure 17 for Figure 15 The diagram shown is a 3D view of the transfer trolley after omitting the upper platform of the carrying platform; Figure 18 for Figure 17 Enlarged view of part D; Figure 19 This is a partial perspective view of the unlocking drive device in some embodiments of the present invention when the toggle component is in the retracted state; Figure 20 for Figure 19 The diagram shown is a perspective view of the unlocking drive device, omitting the side panel of the sliding frame. Figure 21 This is a partial perspective view of the unlocking drive device in some embodiments of the present invention when the toggle component is in the extended state.

[0017] Figure label: 100. Vehicle underframe; 110. Battery compartment storage space; 120. Battery compartment entrance / exit; 130. First side wall; 140. First snap-fit ​​part; 150. Third side wall; 160. Horizontal baffle; 200. Battery compartment; 210. Battery housing space; 220. Battery inlet / outlet; 230. Second snap-fit ​​part; 231. First pivot; 232. Second pivot; 240. Second side wall; 250. Torsion spring; 260. Sliding member; 261. Actuating part; 262. Extension part; 270. Bottom through part; 280. Sliding guide part; 290. First connecting rod; 2100. Second connecting rod; 2110. Third pivot; 2120. Guide limit strip; 2130. Pad; 2140. Outer cover; 2150. Frame structure; 300. Transfer trolley; 310. Loading platform; 311. Through hole; 312. Cover plate; 313. Clearance hole; 314. Upper platform; 315. Lower platform; 320. Lifting mechanism; 330. Battery compartment unlocking drive device; 331. Drive component; 332. Actuating component; 3321. Guide shaft; 334. Guide limiting component; 3341. Receiving groove; 3346. Limiting hole; 3347. Main body; 3348. Connecting part; 335. 336. Drive transmission component; 336. Linear guide rail slider assembly; 3361. First slider; 3362. Second slider; 3363. Linear guide rail; 337. Sliding frame; 3371. Inclined slide rail; 3372. Base plate; 3373. Side plate; 3374. Sliding avoidance passage; 338. Damping component; 339. Wire rope routing limit component; 3310. First elastic reset component; 3311. Fixing base; 340. Mounting frame; 350. Base; 400. Cart track. Detailed Implementation

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] Reference Figures 1 to 21 In some embodiments of this application, the battery-swapping electric vehicle includes a chassis frame 100 and a battery compartment 200. A transfer trolley 300 is configured at the battery swapping station to run between the battery swapping cabinet and the battery-swapping electric vehicle to be swapped, transporting the depleted battery from the battery-swapping electric vehicle to the battery swapping cabinet, and then transporting the fully charged battery from the battery swapping cabinet to the battery-swapping electric vehicle to be swapped for battery swapping.

[0021] The battery swapping station is equipped with a trolley track 400, which is used to cooperate with the transfer trolley 300 to define the movement path of the transfer trolley 300.

[0022] The underbody frame 100 is fixed to the bottom of the battery-swapping electric vehicle. For example... Figure 2 and Figure 3 As shown, the vehicle underframe 100 encloses a battery compartment accommodating space 110. The bottom wall of the vehicle underframe 100 is open to form a battery compartment inlet / outlet 120. The battery compartment inlet / outlet 120 is connected to the battery compartment accommodating space 110, that is, the battery compartment 200 enters and exits the vehicle underframe 100 from the bottom of the vehicle underframe 100. The vehicle underframe 100 includes an annular circumferential sidewall, which includes two opposing first sidewalls 130. A plurality of first snap-fit ​​portions 140 are formed on the first sidewalls 130.

[0023] like Figure 1 , Figures 4 to 6 As shown, the battery compartment 200 is located within the battery compartment accommodating space 110 and is detachably connected to the vehicle underframe 100. The battery compartment 200 forms a battery accommodating space 210 for accommodating the battery. A battery inlet / outlet 220 is formed on one side wall of the battery compartment 200, that is, the battery enters and exits the battery compartment 200 from the side. Multiple second latching portions 230 are formed on the second side wall 240 of the battery compartment 200, which corresponds to the two opposite first side walls 130 of the vehicle underframe 100. The second latching portions 230 engage with the first latching portions 140 to lock the battery compartment 200 within the battery compartment accommodating space 110. The battery compartment 200 is provided with an unlocking mechanism, which, when activated, causes the second latching portions 230 to disengage from the first latching portions 140 to unlock the battery compartment 200.

[0024] like Figure 15 As shown, the transfer trolley 300 includes a carrying platform 310, a lifting mechanism 320, a battery compartment unlocking drive device 330, and a mounting frame 340. The carrying platform 310 is used to carry the battery compartment 200 and the battery inside the compartment. The carrying platform 310 is located on top of the lifting mechanism 320 and connected to the lifting output end of the lifting mechanism 320. The lifting mechanism 320 is located on the mounting frame 340. The lifting mechanism 320 drives the carrying platform 310 to rise and fall, so that the battery compartment 200 and the battery inside the compartment can enter and exit the battery compartment accommodating space 110 through the battery compartment inlet and outlet 120, that is, enter and exit the vehicle bottom frame 100. The battery compartment unlocking drive device 330 is used to drive the unlocking mechanism on the battery compartment 200 to operate.

[0025] In some embodiments of this application, the lifting mechanism 320 is specifically a scissor lift mechanism mounted on the mounting frame 340. Of course, the lifting mechanism 320 can also adopt other structures, such as an electric lead screw mechanism, a cylinder drive, etc., and no specific limitation is made here.

[0026] The underframe 100 is fixed to the bottom of the battery swapping vehicle. The battery is installed in the battery compartment 200 and is detachably installed in the underframe 100 together with the battery compartment 200. The unlocking mechanism is located on the battery compartment 200, and the battery compartment unlocking drive device 330 is located on the transfer trolley 300. Only the first latching part 140 needs to be set on the underframe 100 to cooperate with the locking and unlocking of the battery compartment 200, which can greatly simplify the structure of the battery swapping vehicle and reduce the manufacturing cost of the battery swapping vehicle.

[0027] Since the transfer trolley 300 is located inside the battery swapping station, one transfer trolley 300 can correspond to multiple battery swapping vehicles. The battery compartment unlocking drive device 330 is located on the transfer trolley 300. On the one hand, this helps to reduce the structural complexity and manufacturing cost of the battery swapping vehicle. On the other hand, it can also reduce the failure rate of the vehicle itself, transfer part of the maintenance cost to the transfer trolley 300, facilitate maintenance at any time, not affect the normal operation of the vehicle, and improve the user experience.

[0028] In some embodiments of this application, the battery outline is approximately rectangular, and therefore the outlines of the battery compartment 200 and the vehicle underframe 100 are also approximately rectangular. For the vehicle underframe 100, in addition to the two opposing first sidewalls 130, its circumferential sidewalls also include two opposing third sidewalls 150 perpendicularly connected to the two first sidewalls 130, to form the circumferential sidewalls of the rectangular vehicle underframe 100, as shown below. Figure 2 and Figure 3 As shown.

[0029] In some embodiments of this application, the first sidewall 130 is a sidewall along the length of the rectangular vehicle underframe 100, and multiple first latching portions 140 can be provided along the length of the first sidewall 130. Correspondingly, the second sidewall 240 of the battery compartment 200 is a sidewall along the length of the rectangular battery compartment 200, and the second latching portions 230 are provided along the length of the second sidewall 240 and correspond one-to-one with the first latching portions 140, so as to improve the locking reliability of the battery compartment 200 within the vehicle underframe 100.

[0030] Specifically, the first card receiving part 140 is a card slot.

[0031] A horizontal baffle 160 is fixed at the top four corners of the circumferential sidewall of the rectangular vehicle underframe 100 to limit and stop the battery compartment 200 from moving upwards into the battery compartment receiving space 110. At the same time, the vehicle underframe 100 can also be fixed to the underframe of the battery swapping vehicle via the horizontal baffle 160.

[0032] In some embodiments of this application, sensing components (not shown) are respectively provided at a set of diagonal points on the top of the vehicle underframe 100, such as on the bottom surface of the two diagonally opposite horizontal baffles 160, for sensing whether the battery compartment 200 is in position. The sensing components can be proximity sensors or pressure sensors, etc., and are not specifically limited here.

[0033] For the second latch 230 of the battery compartment 200, such as Figures 4 to 14 As shown, the second latching part 230 is a latch, one end of which has a first rotating shaft 231. The first rotating shaft 231 is fixedly connected to the second side wall 240. The top end of the second latching part 230 is rotatably connected to the first rotating shaft 231, and then rotatably connected to the second side wall 240 of the battery compartment 200. The bottom surface of the second latching part 230 serves as a latching surface that abuts against the first latching part 140. A torsion spring 250 is sleeved on the first rotating shaft 231. The restoring force of the torsion spring 250 drives the second latching part 230 to fit tightly with the first latching part 140, that is, the second latching part 230 is locked in the first latching part 140 under the action of the elastic restoring force of the torsion spring 250.

[0034] During the process of the battery compartment 200, along with the battery inside, moving upwards through the battery compartment inlet / outlet 120 at the bottom of the vehicle underframe 100 into the battery compartment receiving space 110, the second locking part 230 of the battery compartment 200, under the compression of the first side wall 130 of the vehicle underframe 100, continuously compresses the torsion spring 250, causing the torsion spring 250 to deform and store energy. The second locking part 230 is essentially in a compressed state. When the movement reaches the position of the first locking part 140, under the restoring force of the torsion spring 250, the second locking part 230 engages within the first locking part 140, thereby locking and positioning the battery compartment 200 within the vehicle underframe 100. Figures 11 to 14 As shown.

[0035] For the unlocking mechanism of the battery compartment 200, such as Figures 7 to 10 As shown, it includes a slider 260, which is disposed on the battery compartment 200 and can slide in the horizontal direction H. The slider 260 is connected to the second latching part 230. When the slider 260 slides, it drives the second latching part 230 to rotate and disengage from the first latching part 140. During the process of the second latching part 230 rotating and disengaging from the first latching part 140, the second latching part 230 drives the torsion spring 250 to deform and store energy. For example, the second latching part 230 may compress the torsion spring 250 further or pull the torsion spring 250 to stretch and deform.

[0036] Furthermore, the unlocking mechanism of the battery compartment 200 also includes a conversion component, which is disposed between the slider 260 and the second latching portion 230 to connect the slider 260 and the second latching portion 230. The conversion component is configured to convert the linear sliding of the slider 260 into the rotation of the second latching portion 230, so that the second latching portion 230 can rotate and disengage from the first latching portion 140.

[0037] When the battery compartment 200 needs to be unlocked, the slider 260 slides along the horizontal direction H, and then the conversion component drives the second latching part 230 to rotate and disengage from the first latching part 140. During the process of the second latching part 230 rotating and disengaging from the first latching part 140, the second latching part 230 compresses the torsion spring 250 to deform and store energy.

[0038] In some embodiments of this application, the slider 260 is disposed on the bottom plate of the battery compartment 200, and a toggle engagement portion 261 is formed on the bottom surface of the slider 260.

[0039] When the battery compartment 200 is unlocked, the toggle component 332 engages with the toggle mating part 261, and the drive component 331 drives the toggle component 332 to slide in the horizontal direction H, thereby causing the slider 260 to slide in the horizontal direction H. The conversion component can drive the second latching part 230 to rotate and disengage from the first latching part 140, and the carrying platform can pick up the battery compartment 200 and the battery inside the compartment.

[0040] The sliding member 260 can be provided on the top or bottom surface of the base plate of the battery compartment 200. In order to make it run smoothly and reliably, it is provided on the top surface of the base plate of the battery compartment 200, which can be reliably supported by the base plate. A bottom through part 270 is formed on the base plate of the battery compartment 200 corresponding to the actuating engagement part 261, so as to facilitate the actuating component 332 to operate the actuating engagement part 261 from below the battery compartment 200 to make the sliding member 260 slide.

[0041] Since the second latching part 230 is provided on the second side wall 240 of the battery compartment 200, that is, on the side wall of the battery compartment 200 along the length direction, the horizontal direction H is the horizontal direction perpendicular to the second side wall 240, that is, the width direction of the battery compartment 200.

[0042] In some embodiments of this application, such as Figure 6 and Figure 10 As shown, the actuating part 261 consists of multiple strip-shaped recesses arranged sequentially along the horizontal direction H to facilitate actuation.

[0043] like Figures 7 to 9 As shown, a sliding guide portion 280 is formed on the bottom surface of the battery compartment 200. The sliding guide portion 280 slides and guides the sliding member 260 to guide the sliding of the sliding member 260, ensuring its smooth operation, and thus ensuring that the second locking portion 230 rotates smoothly and reliably.

[0044] Specifically, the sliding guide 280 can be a slide rail or a groove, without any specific restrictions. To reduce the space occupied in the height direction, the sliding member 260 is a horizontal plate with a large area to ensure structural strength.

[0045] In some embodiments of this application, the conversion component is a linkage assembly, such as... Figure 8 and Figure 9 As shown, it includes a first link 290 and a second link 2100. One end of the first link 290 is hinged to a sliding member 260, and the other end is hinged to one end of the second link 2100. The other end of the second link 2100 is hinged to the second pivot 232 of the second latching part 230 (the second pivot 232 is located in the lower part of the second latching part 230 and is fixedly connected to the second latching part 230). The second link 2100 is hinged to the second side wall 240 of the battery compartment 200 through a third pivot 2110 (the third pivot 2110 is fixed on the second side wall 240 of the battery compartment 200). The first pivot 231, the second pivot 232, and the third pivot 2110 are horizontal axes arranged in parallel, and their axes are perpendicular to the horizontal direction H.

[0046] When the slider 260 slides along the horizontal direction H, the second locking part 230 is driven to rotate and disengage from the first locking part 140 through the transmission of the first connecting rod 290 and the second connecting rod 2100.

[0047] It adopts a linkage assembly, which has a simple structure and is mechanically driven, requiring no electricity, resulting in low manufacturing cost and low failure rate.

[0048] In some embodiments of this application, the same slider 260 connects two sets of conversion components, and the two sets of conversion components are respectively connected to two second latching portions 230 on two opposite second sidewalls 240. That is, the two second latching portions 230 on the two opposite second sidewalls 240 are respectively connected to the same slider 260 through a set of conversion components. The same slider 260 synchronously drives the two second latching portions 230 to rotate, so as to simplify the structure as much as possible and make the unlocking action of multiple second latching portions 230 synchronized, so that the battery compartment 200 can be unlocked smoothly.

[0049] When multiple first latching portions 140 are provided on each first sidewall 130, and the same number of second latching portions 230 are provided on each second sidewall 240, multiple sets of unlocking mechanisms are also provided accordingly. For example, when two first latching portions 140 are provided on each first sidewall 130, and two second latching portions 230 are provided on each second sidewall 240, then two sets of unlocking mechanisms are provided.

[0050] Specifically, such as Figures 7 to 9As shown, the slider 260 extends outward from its opposite sides to form extensions 262, which are connected to the corresponding conversion components. The two sets of conversion components have the same structure, except that the shape of the first connecting rod 290 is slightly different, so that when the slider 260 slides in the horizontal direction H, the two sets of conversion components can simultaneously drive the second locking parts 230 on both sides to disengage from the corresponding first locking parts 140.

[0051] Regarding the cooperation between the battery and the battery compartment 200, in some embodiments of this application, such as Figure 4 and Figure 7 As shown, guide limiting strips 2120 are provided on the inner walls of the two inner side walls adjacent to the battery compartment 200 and the battery inlet / outlet 220, namely the second side wall 240; the guide limiting strips 2120 are adapted to the sliding grooves on the battery side wall.

[0052] Specifically, the battery inlet / outlet 220 is located on the side wall of the battery compartment 200. Instead of entering and exiting from the bottom of the battery compartment 200, the battery enters and exits from the side of the battery compartment 200. The sliding groove on the side of the battery, together with the guide limit strip 2120, can guide the movement of the battery and fix the battery. Thus, when the battery enters or leaves the battery compartment 200, it can ensure the smooth movement of the battery and prevent tilting.

[0053] Furthermore, the end of the guide limit strip 2120 near the battery inlet / outlet 220 has an oblique conical structure, which makes it easier for the guide limit strip 2120 to be inserted into the groove on the side of the battery.

[0054] Multiple pads 2130 are provided on the bottom surface of the battery compartment 200 to raise the battery and prevent the battery from interfering with the sliding of the sliding member 260. The guide limit strip 2120 is also staggered from the conversion component and the second snap-fit ​​part 230 to prevent interference.

[0055] Although the battery inlet / outlet 220 of the battery compartment 200 exposes one side of the battery when it is inside the battery compartment 200, once the battery compartment 200 and the battery enter the vehicle underframe 100, the circumferential sidewall of the vehicle underframe 100 can completely enclose the side of the battery compartment 200 and the battery. Figure 13 As shown, this ensures safe battery use.

[0056] In some embodiments of this application, such as Figures 4 to 7 As shown, the battery compartment 200 includes a metal outer cover 2140 and an internal frame structure 2150 to ensure the structural strength and sealing of the battery compartment 200 as much as possible. The second snap-fit ​​part 230 is specifically rotatably connected to the side wall of the frame structure 2150, and the sliding part 260 is slidably disposed on the bottom wall of the frame structure 2150.

[0057] For the 300 transport cart, such as Figures 15 to 21As shown, the base 350 can be an AGV trolley or an electric lifting platform. The battery compartment unlocking drive device 330 is configured one-to-one with the unlocking mechanism on the battery compartment 200, including a drive component 331, a toggle component 332, a guide and limit component 334, and a drive transmission component 335. The toggle component 332 and the guide and limit component 334 are mounted on the support platform 10, the drive component 331 is mounted on the mounting frame 340, specifically on the side of the mounting frame 340, and the drive transmission component 335 extends and connects between the drive component 331 and the toggle component 332.

[0058] The drive transmission component 335 is a flexible yet rigid rope or strip-shaped material. While allowing for easy bending and extension to optimize space utilization, it also possesses sufficient structural strength to pull the actuating component 332. The first end of the drive transmission component 335 is connected to the output end of the drive component 331, and the second end is connected to the guide and limiting component 334. The drive component 331, through the drive transmission component 335, drives the guide and limiting component 334 and the actuating component 332 to slide horizontally in the first direction H1 of the horizontal direction H.

[0059] In some embodiments of this application, the drive transmission component 335 is a steel wire rope, which is flexible and has high strength; the battery compartment unlocking drive device also includes a first elastic reset component 3310, which is connected to the guide limiting component 334. The elastic force of the first elastic reset component 3310 is used to drive the guide limiting component 334 and the toggle component 332 to slide horizontally and reset in a second direction H2, which is opposite to the first direction H1.

[0060] Specifically, a fixed base 3311 is fixed on the support platform 310. One end of the first elastic reset component 3310 is connected to the guide limiting component 334, and the other end is connected to the fixed base 3311. When the drive component 331 pulls the guide limiting component 334 and the actuating component 332 to slide horizontally in the first direction H1 of the horizontal direction H through the drive transmission component 335, the first elastic reset component 3310 is stretched. When the drive component 331 stops moving, the elastic force of the first elastic reset component 3310 pulls the guide limiting component 334 and the actuating component 332 to slide horizontally in the second direction H2 of the horizontal direction H to reset.

[0061] In some embodiments of this application, the battery compartment unlocking drive device 330 further includes a wire rope routing limiting component 339 for limiting the routing direction of the wire rope. The wire rope routing limiting component 339 can be a multi-segmented rigid pipe, each segment of which is fixed inside the transfer trolley 300 by a bracket at a convenient routing position. The wire rope is routed through the rigid pipe, which provides support and guidance for the wire rope.

[0062] The actuating component 332 is used to engage with the actuating engagement portion 261 on the sliding member 260 of the battery compartment 200. The driving component 331 pulls the actuating component 332 horizontally in the first direction H1 of the horizontal direction H through the driving transmission component 335, and then drives the sliding member 260 of the battery compartment 200 to slide horizontally in the first direction H1 of the horizontal direction H through the actuating engagement portion 261, thereby unlocking the battery compartment 200. The guide limiting component 334 has a receiving groove 3341 with an opening at the top. The actuating component 332 is inserted into the receiving groove 3341 through the top through portion, and can extend or retract through the top opening of the receiving groove 3341. That is, the actuating component 332 has two position states relative to the guide limiting component 334, namely, the extended state and the retracted state. When extended, the actuating component 332 engages with the actuating engagement portion 261. When retracted, the actuating component 332 disengages from the actuating engagement portion 261.

[0063] The drive component 331 can be an electric actuator, a cylinder, a hydraulic cylinder, etc., and no specific limitation is made here. The actuating component 332 has a block structure with a thin and pointed top so that it can be embedded in the actuating mating part 261.

[0064] In this application, the electrical components related to unlocking the battery compartment 200 are located on the transfer trolley 300, while only some mechanical structures are retained on the vehicle frame 100 and the battery compartment 200. This transfers most of the maintenance costs to the transfer trolley 300, without affecting vehicle operation and making it convenient for maintenance personnel to perform maintenance at any time.

[0065] In some embodiments of this application, there are two sets of battery compartment unlocking drive devices 330, and correspondingly, there are two sets of unlocking mechanisms on the battery compartment. The actuating component 332 and guide limiting component 334 of one set of battery compartment unlocking drive devices 330 are located on one side of the support platform 310, while the actuating component 332 and guide limiting component 334 of the other set of battery compartment unlocking drive devices 330 are located on the opposite side of the support platform 310. The drive components 331 of the two sets of battery compartment unlocking drive devices 330 are controlled separately, so that when the parking position of the battery-swapping electric vehicle deviates, each set of battery compartment unlocking drive devices 330 can be controlled separately for unlocking.

[0066] In some embodiments of this application, such as Figures 15 to 19 As shown, the battery compartment unlocking drive device 330 includes a drive component 331, a toggle component 332, a guide and limit component 334, a linear guide slider assembly 336, a sliding frame 337, and a second elastic reset component.

[0067] The linear guide slider assembly specifically includes two sets of guide slider mechanisms arranged opposite to each other. Each set of guide slider mechanisms includes a first slider 3361 and a second slider 3362. The first slider 3361 and the second slider 3362 are spaced apart along the extension direction of the linear guide 3363, that is, each linear guide 3363 is equipped with multiple sliders. The linear guide 3363 is fixedly installed (can be fixedly connected to the bearing platform 310) and extends in the horizontal direction H. The first slider 3361 and the second slider 3362 can slide along the linear guide 3363.

[0068] The sliding frame 337 includes a base plate 3372 and two side plates 3373 that correspond one-to-one with the two sets of guide rail slider mechanisms. The base plate 3372 and the side plates 3373 are fixedly connected. The sliding frame 337 is located between the two sets of guide rail slider mechanisms. A set of driving components 331 is provided, which is connected to the base plate 3372 and then to the sliding frame 337 through the second end of the driving transmission component 335.

[0069] A sliding clearance through-part 3374 is formed on the base plate 3372. The bottom end of the guide limiting member 334 falls within the sliding clearance through-part 3374. In the horizontal direction H, the sliding clearance through-part 3374 has a relatively large length to provide clearance space for the guide limiting member 334 to slide in the horizontal direction H. The two side plates 3373 are respectively fixedly connected to the first slider 3361. An inclined slide rail 3371 is formed on the side plate 3373. Guide shafts 3321 that slide with the inclined slide rail are formed on the opposite sides of the actuating member 332. The guide shafts 3321 are horizontal shafts that extend into the inclined slide rail 3371. The second end of the drive transmission member 335 is connected to the base plate 3372 and then to the sliding frame 337, thereby indirectly connecting the guide limiting member 334 and the actuating member 332.

[0070] The guide limiting component 334 is fixedly connected to the second slider 3362 of the linear guide slider assembly 336.

[0071] The elastic force of the second elastic reset component is used to drive the toggle component 332 to reset and extend relative to the guide limit component 334, that is, to reset and extend through the top opening of the receiving groove 3341.

[0072] Furthermore, such as Figures 17 to 19As shown, the receiving groove 3341 is located in the middle of the guide limiting member 334 and extends vertically. The side of the guide limiting member 334 also forms a limiting hole 3346 that communicates with the receiving groove 3341 and extends vertically. The guide shaft 3321 of the actuating member 332 extends through the limiting hole 3346 and slides and guides with the limiting hole 3346 in a vertical direction. The second elastic reset member (covered by the actuating member 332 and not shown) is specifically disposed in the receiving groove 3341 and is located between the bottom end of the actuating member 332 and the bottom of the receiving groove 3341. When the actuating member 332 retracts into the receiving groove 3341, the second elastic reset member is compressed.

[0073] by Figure 19 , Figure 20 Taking the retracted state of the actuating component 332 as an example, at this time, the guide shaft 3321 is located at the lower end d1 of the inclined slide 3371, the second elastic reset component is in a compressed state, the driving component 331 is activated, and the driving sliding frame 337 slides towards the horizontal direction H1 under the cooperation of the first slider 3361 and the linear guide rail 3363. The guide limiting component 334 is stationary at this time. As the sliding frame 337 continues to slide towards H1, under the combined action of the receiving groove 3341, the limiting hole 3346, and the inclined slide 3371, and simultaneously under the elastic force of the second elastic reset component, the guide shaft 3321 of the actuating component 332 gradually reaches the upper end d2 of the inclined slide 3371, and the actuating component 332 gradually extends until the guide shaft 3321 abuts against the upper end d2 side of the inclined slide 3371, and the actuating component 332 reaches its extension limit position. Figure 21 As shown; the extended toggle component 332 engages with the aforementioned toggle mating part 261, and the sliding frame 337 continues to slide in the H1 direction. The guide shaft 3321 pushes the guide limiting component 334 and its toggle component 332 together to slide in the H1 direction. In turn, the toggle component 332 drives the sliding member 260 on the battery compartment to slide in the H1 direction, thereby causing the second locking part 230 to rotate and disengage from the first locking part 140 to unlock the battery compartment 200.

[0074] When the actuating component 332 needs to retract, the driving component 331 is activated, driving the sliding frame 337 to slide in the second direction H2 (i.e., the opposite direction of H1) in the cooperation of the first slider 3361 and the linear guide rail 3363. The guide shaft 3321 of the actuating component 332 gradually reaches the lower end d1 of the inclined slide rail 3371, and the actuating component 332 gradually retracts. The compression of the second elastic reset component gradually increases to store energy until the guide shaft 3321 abuts against the lower end d1 side of the inclined slide rail 3371. Figure 19 As shown, the actuating component 332 retracts into the receiving groove 3341, and the actuating component 332 disengages from the actuating mating part 261.

[0075] In these embodiments of this application, further, as Figure 19 and Figure 21 As shown, the top walls of the lower end d1 and the upper end d2 of the inclined slide 3371 are both horizontal, so that when the drive component stops working, the guide shaft 3321 of the actuating component 332 can stably abut against the lower end d1 or the upper end d2 of the inclined slide 3371 under the restoring force of the elastic component, thereby stabilizing the actuating component 332 in the retracted state or the extended state.

[0076] Furthermore, the guide limiting component 334 includes a main body portion 3347 and a connecting portion 3348 connected as one unit. The receiving groove 3341 and the limiting hole 3346 are provided on the main body portion 3347. The connecting portion 3348 is located at the lower part of the main body portion 3347 and extends to the opposite sides of the main body portion 3347, so that the guide limiting component 334 is inverted T-shaped as a whole. The main body portion 3347 is located in the sliding avoidance through portion 3374. The two connecting portions 3348 are respectively fixedly connected to the second sliders 3362 on both sides as one unit.

[0077] In some embodiments of this application, the support platform 310 includes an upper platform 314 and a lower platform 315 fixedly connected together. An installation space is reserved between the upper platform 314 and the lower platform 315. Except for the drive component 331 and the drive transmission component 335, other components of the battery compartment unlocking drive device 330 can be located within the installation space of the support platform 310. A linear guide rail 3363 is fixedly connected to the bottom surface of the upper platform 314. The upper platform 314 has a through hole 311 to at least expose the guide limiting component 334. Since the guide limiting component 334 needs to slide along the horizontal direction H, the through hole 311 should have a certain length in the horizontal direction H to accommodate the sliding of the guide limiting component 334.

[0078] Furthermore, a cover plate 312 is disposed within the through hole 311 to cover a portion of the area of ​​the through hole 311, thereby protecting the battery compartment unlocking drive device 330 below. The cover plate 312 has a clearance hole 313 that matches the outer contour of the guide limiting member 334. The top end of the guide limiting member 334 extends upward through the clearance hole 313 on the cover plate. Since the guide limiting member 334 slides along the horizontal direction H, it will cause the cover plate 312 to slide. If the cover plate 312 is located within the through hole, there must be a certain gap between the cover plate 312 and the inner wall of the through hole 311 in the horizontal direction H. That is, in the horizontal direction H, the length of the cover plate 312 is less than the length of the through hole 311, so as not to hinder the cover plate 312 from sliding with the guide limiting member 334.

[0079] Furthermore, since the guide shaft 3321 of the actuating component 332 does not reach both ends of the inclined slide 3371, the guide limiting component 334 does not slide with the sliding frame 337. Only when the guide shaft 3321 reaches both ends of the inclined slide 3371 and the sliding frame 337 continues to slide in the original direction will the guide limiting component 334 be pushed to slide. To improve the positional stability of the guide limiting component 334 when it does not slide, a damping component 338 (which can be a rubber block or a plastic block) is provided on one side of the connecting portion 3348. The damping component 338 contacts the bottom surface of the upper platform 314 to provide frictional damping and prevent the guide limiting component 334 from sliding accidentally.

[0080] The battery swapping process for electric vehicles using the transfer trolley 300 in this embodiment is as follows: The transfer trolley 300 drives into the bottom of the vehicle frame 100, and the lifting mechanism 320 lifts the carrying platform 310 to the battery compartment pick-up and drop position. The actuating component 332 and the sliding component 260 work together to achieve linkage. The actuating component 332 moves the sliding component 260 to slide, and the sliding component 260 moves the second locking part 230 to disengage from the first locking part 140, unlocking the battery compartment 200. The transfer trolley 300 picks up the battery compartment 200 and the battery inside. The lifting mechanism 320 drives the carrying platform 310 to descend and reset, and drives the battery compartment 200 and the depleted batteries in the compartment to the battery swapping station for battery swapping. The depleted batteries leave the battery compartment 200 and enter the battery swapping station, while the fully charged batteries enter the battery compartment 200 on the transfer trolley 300 from the battery swapping station. The transfer trolley 300 carries the battery compartment 200 and the fully charged battery inside to the bottom of the vehicle. The lifting mechanism 320 lifts the support platform 310 to the battery compartment loading and unloading position. When the battery compartment 200 and its battery are lifted into the battery compartment holding space 110, the second locking part 230 of the battery compartment 200 engages with the first locking part 140 of the vehicle bottom frame 100, locking the battery compartment 200 in the battery compartment holding space 110, and the battery swap is completed.

[0081] In some embodiments of this application, the battery compartment access position is the plane position of the battery compartment inlet / outlet 120 of the vehicle underframe 100.

[0082] The battery compartment 200 and the battery inside the compartment enter and exit the vehicle's underframe 100 as a whole, which helps to save battery swapping time and thus improve battery swapping efficiency.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery compartment unlocking drive device, characterized in that, include: Actuating component; Drive components; A guide limiting component has a receiving groove formed on it, the top of the receiving groove has an opening, the actuating component is disposed in the receiving groove, and can extend or retract through the top opening of the receiving groove. A drive transmission component has a first end connected to the output end of the drive component and a second end connected to the guide limiting component. The drive component drives the guide limiting component and the actuating component to slide horizontally in a first direction through the drive transmission component.

2. The battery compartment unlocking drive device according to claim 1, characterized in that, The drive transmission component is a steel wire rope; The battery compartment unlocking drive device also includes: The first elastic reset component is connected to the guide limiting component, and its elastic force is used to drive the guide limiting component and the toggle component to slide horizontally and reset in a second direction opposite to the first direction.

3. The battery compartment unlocking drive device according to claim 2, characterized in that, The battery compartment unlocking drive device also includes: A wire rope routing limit component is used to limit the routing direction of the wire rope.

4. The battery compartment unlocking drive device according to claim 1, characterized in that, The battery compartment unlocking drive device also includes: A linear guide rail slider assembly includes a linear guide rail, a first slider and a second slider that slide in cooperation with the linear guide rail, the first slider and the second slider being spaced apart, a guide limiting component being fixedly connected to the second slider, a receiving groove extending vertically, and a toggle component sliding in cooperation with the receiving groove in the vertical direction. A sliding frame is fixedly connected to the first slider and connected to the first end of the drive transmission component. An inclined slide is formed on the sliding frame, and a guide shaft that slides with the inclined slide is formed on the actuating component. The second elastic reset component has an elastic force used to drive the toggle component to reset and extend through the top opening of the receiving groove.

5. The battery compartment unlocking drive device according to claim 4, characterized in that, The guide limiting component has a limiting hole that communicates with the receiving groove and extends vertically on its side. The guide shaft passes through the limiting hole and slides and guides the limiting hole vertically. The second elastic reset component is located in the receiving groove and at the bottom of the actuating component.

6. The battery compartment unlocking drive device according to claim 4, characterized in that, Both the lower and upper top walls of the inclined slide are horizontal.

7. A transfer trolley, characterized in that, include: A support platform, used to support the battery compartment and the batteries inside; A lifting mechanism is used to lift the support platform. The mounting frame is provided, the lifting mechanism is mounted on the mounting frame, and the support platform is located on top of the lifting mechanism; A battery compartment unlocking drive device, which is the battery compartment unlocking drive device according to any one of claims 1 to 6, wherein the toggle component and the guide limiting component are disposed on the support platform, and the drive component is disposed on the mounting frame.

8. The transfer trolley according to claim 7, characterized in that, The battery compartment unlocking drive device consists of two sets. In one set, the actuating component and the guide limiting component of the battery compartment unlocking drive device are located on one side of the support platform, while in the other set, the actuating component and the guide limiting component are located on the opposite side of the support platform.

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