A protective device and a battery swapping station

Abstract

A protective device and a battery swapping station are disclosed, relating to the field of battery swapping station technology. The device includes a frame, a movable door panel, a sliding guide assembly, and a lifting guide assembly. The frame has an opening; the movable door panel can slide and rise / fall on the frame to open and close the opening; the sliding guide assembly includes a guide rail, a sliding rolling element, and a linkage assembly. The guide rail is mounted on the frame, and the sliding rolling element is connected to the movable door panel via the linkage assembly and is rolledly supported on the guide rail; the lifting guide assembly includes a guide structure and a lifting rolling element. The guide structure is mounted on the frame, and the lifting rolling element rolls in cooperation with the guide structure during at least a portion of the sliding stroke of the movable door panel, guiding the movable door panel to rise and fall. This application achieves smooth switching of the opening and closing of the movable door panel through the linkage of sliding and rising, effectively blocking foreign objects and eliminating the risk of tripping. It uses rolling friction instead of sliding friction, resisting wear from mud and sand, and improving service life under harsh working conditions.

Description

Technical Field

[0001] This application relates to the field of battery swapping station technology, specifically to a protective device and a battery swapping station. Background Technology

[0002] In battery swapping stations, the core functions of the protective device for the swapping platform include: automatically closing the door during non-swappable conditions to protect the battery transmission mechanism and battery unlocking mechanism below; keeping the door closed during vehicle passage to provide a stable support platform; and automatically opening the door during vehicle battery swapping to prevent movement of the battery unlocking mechanism. Existing protective devices have the following shortcomings: large gaps and significant height differences exist between the protective device and surrounding structural components, affecting the overall aesthetics of the swapping channel and posing a tripping hazard to personnel; the protective devices mostly use a sliding guide rail structure, requiring extremely high cleanliness of the working environment and precision in processing and assembly, making them prone to wear in harsh environments such as those with mud and sand, resulting in a short overall service life and high maintenance costs. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a protective device and a battery swapping station to solve at least one of the above-mentioned technical problems.

[0004] In a first aspect, this application provides a protective device, comprising: a frame having an opening; a movable door panel disposed on the frame and slidable and movable to open and close the opening; a sliding guide assembly including a guide rail, a sliding rolling element, and a linkage assembly, the guide rail being disposed on the frame, the sliding rolling element being connected to the movable door panel via the linkage assembly and rotatably supported on the guide rail; and a lifting guide assembly including a guide structure and a lifting rolling element, the guide structure being disposed on the frame, the lifting rolling element being rotatably disposed on the movable door panel and rotatably cooperating with the guide structure during at least a portion of the sliding stroke of the movable door panel to guide the movable door panel to rise and fall.

[0005] In conjunction with the first aspect, in some optional embodiments, it further includes: a drive mechanism, which is connected to the movable door panel for driving the movable door panel to slide.

[0006] In conjunction with the first aspect, in some alternative embodiments, the drive mechanism includes a drive member and a transmission assembly, the drive member being drive-connected to the transmission assembly, and the transmission assembly being drive-connected to the movable door panel or a linkage assembly corresponding to the movable door panel.

[0007] In conjunction with the first aspect, in some alternative embodiments, the number of movable door panels is two, and the drive mechanism is used to drive the two movable door panels to slide towards each other to jointly close the opening, and to slide away from each other to jointly open the opening.

[0008] In conjunction with the first aspect, in some alternative embodiments, the linkage assembly includes a support plate and at least two links, the support plate being arranged parallel to the movable door panel, the links being parallel to each other and the two ends of each link being hinged to the support plate and the movable door panel respectively; the number of sliding rolling elements is at least two, and they are spaced apart on the support plate along the extension direction of the support plate.

[0009] In conjunction with the first aspect, in some optional embodiments, the sliding rolling element is a traveling roller, which includes a base, a roller, and an oil pipe adapter block. The base is mounted on a support plate, the roller is rotatably mounted on the base, and the oil pipe adapter block is mounted on the base and has an oil inlet and an oil outlet. The oil inlet is used to connect to an external oil supply pipeline, and the oil outlet is connected to a bearing inside the roller to supply oil to the bearing.

[0010] In conjunction with the first aspect, in some alternative embodiments, the frame includes two opposing side panels and a plurality of crossbeams connecting the two side panels, each side panel being provided with guide rails and guide structures.

[0011] In conjunction with the first aspect, in some alternative embodiments, the guide structure includes a track plate having guide grooves for rolling engagement with the lifting rolling element.

[0012] In conjunction with the first aspect, in some alternative embodiments, the guide structure includes a guide groove formed on the side plate for rolling engagement with the lifting rolling element.

[0013] In conjunction with the first aspect, in some alternative embodiments, it further includes: a fixed door panel disposed on the frame; wherein the movable door panel has a closed position with a closed opening and flush with the fixed door panel, and an open position with an open opening and at least partially hidden under the fixed door panel.

[0014] In conjunction with the first aspect, in some alternative embodiments, the number of fixed door panels is two, the two fixed door panels are arranged at intervals and the space between them forms an opening.

[0015] Secondly, this application provides a battery swapping station, including: a protective device as described in any of the embodiments of the first aspect above; and a battery swapping device for performing a battery swapping operation through an opening.

[0016] Based on the above technical solutions, the protective device and battery swapping station provided in this application achieve smooth switching of the opening and closing of the movable door panel through the linkage of sliding and lifting. Specifically, when the opening is closed, the movable door panel can rise to eliminate gaps and height differences with the surrounding structure, effectively preventing foreign objects such as mud, sand, and fallen leaves from entering the battery swapping device below, significantly improving protective performance and eliminating the risk of tripping, thus enhancing safety. When the opening is open, the movable door panel descends, reducing space occupation and facilitating avoidance of the battery swapping device below. The use of guide rails in conjunction with the rolling support of sliding rolling elements replaces the sliding friction of traditional slider guide rails, greatly reducing the requirements for environmental cleanliness and processing precision, and making it less prone to jamming and wear in harsh working conditions with abundant mud and sand. The linkage assembly decouples the horizontal support of the sliding rolling elements from the lifting motion of the movable door panel. The lifting rolling elements roll in cooperation with the guide structure during at least part of the sliding stroke of the movable door panel, guiding the movable door panel to precise lifting and lowering. This achieves smooth linkage between sliding and lifting movements, avoids motion interference and jamming, ensures stable and smooth overall operation, significantly extends service life, and reduces maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a protective device provided in an embodiment of this application.

[0019] Figure 2 This is a structural diagram of a frame and a fixed door panel provided in an embodiment of this application.

[0020] Figure 3 This is a front view of a side panel and its upper guide rail and guide structure provided in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the assembly structure of a movable door panel, a sliding rolling element, a connecting rod assembly, and a lifting rolling element provided in an embodiment of this application.

[0022] Figure 5 This is an exploded structural diagram of a movable door panel, a sliding rolling element, a connecting rod assembly, and a lifting rolling element provided in an embodiment of this application.

[0023] Figure 6 This is a front view of a sliding rolling element and guide rail assembly provided in an embodiment of this application.

[0024] Figure 7This is a side view of a sliding rolling element and guide rail assembly provided in an embodiment of this application.

[0025] Figure 8 This is a schematic diagram of the structure connecting a drive mechanism and a linkage assembly, provided in an embodiment of this application.

[0026] Reference numerals: 100, Protective device; 10, Fixed door panel; 11, Guide roller; 20, Movable door panel; 30, Sliding guide assembly; 31, Guide rail; 311, Limit stop; 32, Sliding rolling element; 321, Base; 322, Roller; 323, Oil pipe adapter block; 33, Linkage assembly; 331, Support plate; 332, Linkage; 40, Lifting guide assembly; 41, Guide structure; 411, Guide groove; 42, Lifting rolling element; 50, Frame; 51, Side upright plate; 52, Crossbeam; 60, Drive mechanism; 61, Drive component; 611, Servo motor; 612, Reducer; 62, Transmission assembly; 621, Drive shaft; 622, Drive sprocket; 623, Transmission chain; 624, Guide sprocket; 63, Position sensor; 70, Coordinate system calibration column. Detailed Implementation

[0027] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of them. Based on the description of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0028] In the description of this application, unless otherwise expressly specified and limited, the terms "connection," "setup," "installation," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “center,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] The terms “first,” “second,” “third,” etc., are used only to distinguish elements with similar properties, and do not indicate or imply relative importance or a specific order, unless otherwise explicitly stated or limited.

[0031] The terms “comprising,” “including,” “having,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0032] The term "multiple" means two or more (including two).

[0033] The term "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0034] The terms "an embodiment," "as an example," and "in one implementation" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which may be included in at least one embodiment or example of this application. These illustrative expressions do not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Where there is no conflict, the embodiments and features described in these embodiments can be combined in a suitable manner.

[0035] This application provides a protective device 100 and a battery swapping station, aiming to solve the problems of poor protective performance of existing protective devices in battery swapping stations, the risk of tripping, and the easy wear and jamming of traditional slider guide rails under harsh working conditions.

[0036] like Figures 1 to 8 As shown in the figure, this application provides a protective device 100, which mainly includes a fixed door panel 10, a movable door panel 20, a sliding guide assembly 30, a lifting guide assembly 40, a frame 50, and a drive mechanism 60.

[0037] Frame 50 forms the supporting skeleton of the entire protective device 100, serving as the mounting base for other components. Frame 50 has an opening within the battery swapping station for the battery swapping device located beneath the protective device 100 to pass through and perform battery swapping operations. As an example, such as... Figure 1 and Figure 2As shown, the frame 50 is a rectangular frame structure, including two side panels 51 arranged opposite each other and multiple crossbeams 52 connecting the two side panels 51.

[0038] The fixed door panel 10 is fixedly mounted on the frame 50. The movable door panel 20 is slidable and movable relative to the fixed door panel 10 on the frame 50 to open and close the opening. The movable door panel 20 has a closed position with the opening closed and an open position with the opening open. As an example, the movable door panel 20 is flush with the fixed door panel 10 in the closed position and is at least partially hidden below the fixed door panel 10 in the open position.

[0039] The number of fixed door panel 10 and movable door panel 20 is at least one. As an example, such as... Figure 1 and Figure 2 As shown, there are two fixed door panels 10 and two movable door panels 20. The two fixed door panels 10 are spaced apart on the frame 50, and the space between them forms an opening. Each fixed door panel 10 is horizontally mounted across two side panels 51, serving as a stationary support surface. The two movable door panels 20 are located on the left and right sides of the opening, respectively, and can slide and rise / fall relative to the two fixed door panels 10. When the two movable door panels 20 slide towards each other and rise to the closed position, they together close the opening; when they slide away from each other and fall to the open position, they are hidden below the two fixed door panels 10, opening the opening. The relative movement of the two movable door panels 20 shortens the movement path of a single movable door panel 20, improving the efficiency of state switching.

[0040] In order to achieve smooth sliding and overcome the jamming problem in harsh environments with lots of mud and sand, this protective device 100 abandons the traditional slider guide structure and adopts a sliding guide component 30 with rolling friction.

[0041] like Figures 3 to 7 As shown, the sliding guide assembly 30 includes a guide rail 31, a sliding rolling element 32, and a connecting rod assembly 33. The guide rail 31 is fixedly mounted on the side upright plate 51 and extends horizontally. The sliding rolling element 32 is connected to the movable door panel 20 through the connecting rod assembly 33, and the connecting rod assembly 33 is swayable relative to the movable door panel 20. The sliding rolling element 32 is rolled and supported on the guide rail 31, thereby providing guidance and support for the sliding of the movable door panel 20 and greatly reducing running resistance.

[0042] The guide rail 31 can be an I-beam, a T-beam, or other profile with a guide surface. As an example, the guide rail 31 is preferably made of I-beam, which has the advantages of high structural strength and strong load-bearing capacity, and its flange structure is suitable for use with rollers, exhibiting extremely high tolerance for mud and sand. Guide rails 31 are installed on both side uprights 51, and each guide rail 31 has a limit stop 311 at both ends (see...). Figure 3 The limit stop 311 is used to abut against the sliding rolling element 32 or the support plate 331, and plays a mechanical hard limit role to prevent derailment.

[0043] The linkage assembly 33 can have various structural forms, as long as it can swing relative to the movable door panel 20, allowing the movable door panel 20 to rise and fall parallel to the guide rail 31. As an example, the linkage assembly 33 includes a support plate 331 and two connecting rods 332. The support plate 331 is arranged parallel to the movable door panel 20; the two connecting rods 332 are parallel to each other, with one end of each connecting rod 332 hinged to both ends of the support plate 331, and the other end of each connecting rod 332 hinged to the movable door panel 20. The support plate 331, the two connecting rods 332, and the movable door panel 20 together constitute a parallel four-bar linkage mechanism. The structural design of this four-bar linkage allows the support plate 331 and the sliding rolling body 32 mounted on it to generate relative displacement in the vertical direction relative to the movable door panel 20 through the synchronous swinging motion of the two connecting rods 332. As the sliding rolling body 32 moves along the guide rail 31, when the movable door panel 20 is guided by the lifting guide assembly 40, the movable door panel 20 can flexibly rise and fall in the vertical direction relative to the support plate 331 sliding along the guide rail 31. Meanwhile, the sliding rolling body 32 always maintains good rolling contact with the guide rail 31, avoiding hard interference or jamming caused by the lifting motion to the sliding guide, thereby achieving decoupling and smooth linkage between the sliding and lifting motions.

[0044] The sliding rolling element 32 is matched with the guide rail 31. As an example, such as... Figures 4 to 7 As shown, the sliding rolling element 32 is a traveling roller that matches the I-beam, with at least two rollers, which are installed at intervals on the support plate 331 along its extension direction. Each traveling roller includes a base 321, a roller 322, and an oil pipe adapter block 323. The base 321 is installed on the support plate 331. There are two rollers 322, both of which are rotatably mounted on the base 321. The two rollers 322 are respectively supported by rolling between the upper and lower flanges on both sides of the web of the I-beam guide rail 31. This upper and lower clamping method ensures the horizontal support stability of the movable door panel 20 when it slides, and provides an upward pulling force when the movable door panel 20 is lifted. In addition, the open sides are also conducive to the natural shedding of mud and sand. To adapt to harsh working conditions, a special oil pipe adapter block 323 is provided. It is set on the base 321 and has an oil inlet and an oil outlet. The oil inlet is used to connect to the external oil supply line, and the oil outlet is connected to the bearing inside the roller 322. By periodically injecting oil, grease can be automatically pressed into the bearing, effectively removing mud and sand and maintaining lubrication, significantly extending the service life of the traveling roller under harsh working conditions.

[0045] In order to eliminate gaps and height differences between the movable door panel 20 and the surrounding structure when closed, and to lower it when opened to reduce space occupation, this protective device 100 is equipped with a lifting guide assembly 40.

[0046] like Figures 3 to 6 As shown, the lifting guide assembly 40 includes a guide structure 41 and a lifting rolling element 42. The guide structure 41 is disposed on the side plate 51, and the lifting rolling element 42 is rotatably disposed on the movable door panel 20. When the movable door panel 20 slides, the lifting rolling element 42 rolls in cooperation with the guide structure 41, using the specific shape of the guide structure 41 to guide the movable door panel 20 to generate lifting displacement. Specifically, at the end of the stroke when the movable door panel 20 moves to the closed position, the movable door panel 20 is raised to eliminate gaps and height differences with the surrounding structure, preferably raised to a height level with the fixed door panel 10, to achieve a flat and seamless surface; at the initial stage when the movable door panel 20 moves to the open position, the movable door panel 20 is lowered to a height position that can slide under the surrounding structure to reduce the space occupied, preferably lowered to a height position that can slide under the fixed door panel 10 to hide and avoid obstruction.

[0047] As an example, such as Figure 3 and Figure 6 As shown, the guide structure 41 is a track plate, which is mounted on the side plate 51. The track plate has a guide groove 411 for rolling cooperation with the lifting rolling element 42. The lifting rolling element 42 is a grooved wheel, which is rotatably mounted on the side edge of the movable door panel 20. When the grooved wheel is engaged in the guide groove 411, as the movable door panel 20 slides horizontally, the grooved wheel rises or falls along the shape of the guide groove 411, thereby driving the movable door panel 20 to complete the lifting action. Furthermore, to simplify the structure, the guide structure 41 can also be a guide groove directly formed on the side plate 51.

[0048] Through the cooperation of the sliding guide assembly 30, the lifting guide assembly 40, and the linkage assembly 33, the process of switching the movable door panel 20 between the closed and open positions is as follows: When it is necessary to open the opening, the drive mechanism 60 drives the movable door panel 20 to slide in opposite directions. In the initial stage of sliding, the lifting roller 42 rolls along the shape of the guide structure 41, guiding the movable door panel 20 to descend to reduce the space occupied, preferably descending to a height position lower than the lower surface of the fixed door panel 10; then the movable door panel 20 continues to slide horizontally under the support of the linkage assembly 33, gradually hiding under the surrounding structure such as the fixed door panel 10, until it reaches the open position. When it is necessary to close the opening, the drive mechanism 60 drives the movable door panel 20 to slide in opposite directions. At the end of the sliding stroke, the lifting roller 42 rolls in the opposite direction along the shape of the guide structure 41, guiding the movable door panel 20 to rise upward, finally eliminating the gap and height difference with the surrounding structure, such as being flush with the fixed door panel 10 to close the opening, reaching the closed position. Throughout this entire movement, the linkage assembly 33 oscillates adaptively, ensuring that the sliding rolling element 32 maintains good rolling contact with the guide rail 31, thus achieving precise conversion of the motion trajectory and avoiding jamming.

[0049] like Figure 1 and Figure 8 As shown, the drive mechanism 60 is connected to the two movable door panels 20 for driving the two movable door panels 20 to slide synchronously towards or away from each other, so as to switch between the closed position and the open position.

[0050] Specifically, the drive mechanism 60 includes a drive member 61 and a transmission assembly 62. The drive member 61 is used to provide stable power output. The drive member 61 is connected to the transmission assembly 62. The transmission assembly 62 can be connected to the two movable door panels 20 respectively, or it can be connected to the corresponding linkage assembly 33 of each movable door panel 20 respectively.

[0051] As an example, such as Figure 8 As shown, the drive component 61 includes a servo motor 611 and a reducer 612, and the transmission assembly 62 includes a drive shaft 621, a drive sprocket 622, a transmission chain 623, and guide sprockets 624. The servo motor 611 and the reducer 612 are mounted on either side plate 51 via mounting brackets. The output end of the servo motor 611 is connected to the input end of the reducer 612, and the output end of the reducer 612 is coaxially connected to the drive shaft 621 via a coupling. The drive shaft 621 is mounted on both side plates 51 via bearings with mounting seats. There are two drive sprockets 622, both mounted on the drive shaft 621, which rotate synchronously with the drive shaft 621. The two drive sprockets 622 are arranged corresponding to two guide rails 31, and each drive sprocket 622 is connected to multiple guide sprockets 624 via the transmission chain 623. At least one guide sprocket 624 also tensions the corresponding transmission chain 623.

[0052] For the guide rail 31 on the same side, two drive chains 623 are used to cross-connect the corresponding linkage assemblies 33 of the two movable door panels 20. Specifically, one end of the first drive chain 623 is connected to the support plate 331 of the first linkage assembly 33, and the other end passes around the drive sprocket 622 and the nearby guide sprocket 624 at one end of the guide rail 31 and then connects to the support plate 331 of the second linkage assembly 33, forming half of the chain drive path; one end of the second drive chain 623 is connected to the support plate 331 of the second linkage assembly 33, and the other end passes around the guide sprocket 624 at the other end of the guide rail 31 and then connects to the support plate 331 of the first linkage assembly 33, forming the other half of the chain drive path.

[0053] During operation, the servo motor 611 drives the drive shaft 621 and two drive sprockets 622 to rotate via the reducer 612. Each drive sprocket 622 drives the corresponding two transmission chains 623 to move synchronously. Since the two transmission chains 623 are cross-connected to two linkage assemblies 33, under the traction of the drive sprocket 622, one transmission chain 623 tightens while the other transmission chain 623 loosens, thereby pulling the two support plates 331 and their corresponding movable door panels 20 to slide synchronously back to back along the guide rail 31 to open the opening, or slide synchronously towards each other to close the opening, thus realizing the synchronous opening or closing of the two movable door panels 20.

[0054] To achieve precise automated control, such as Figure 1 As shown, a position sensor 63 is also provided on the side panel 51 or the corresponding fixed structure. The position sensor 63 is electrically connected to the drive component 61 and is used to detect whether the movable door panel 20 has reached the open or closed position, thereby controlling the servo motor 611 to stop precisely. The position sensor 63 can be a mechanical limit switch, a photoelectric switch, or a proximity switch. As an example, the position sensor 63 is a proximity switch.

[0055] In addition, such as Figure 1 and Figure 2 As shown, each fixed door panel 10 is also provided with a guide roller 11 on its top surface. When a vehicle enters the battery swapping channel, the guide roller 11 can provide guidance and cushioning when the vehicle body deviates, avoiding rigid collisions. Specifically, the guide roller 11 extends along the vehicle's driving direction on the top surface of the fixed door panel 10, with at least two guide rollers 11 distributed on opposite sides of the opening, thereby defining a load-bearing area for accommodating the vehicle between the at least two guide rollers 11. This limits the vehicle when it enters the load-bearing area, ensuring that the vehicle is as directly aligned with the opening as possible, facilitating subsequent battery swapping operations.

[0056] The protective device 100 may also include a coordinate system calibration column 70, which is used in conjunction with external calibration instruments during the installation and commissioning of the battery swapping station to determine the precise position of the protective device 100 in the global coordinate system of the battery swapping station, serving as a position reference to ensure the accuracy of battery swapping.

[0057] This application also provides a battery swapping station, including the protective device 100 and a battery swapping device as described in any of the above embodiments. The movable door panel 20 can be arranged perpendicular to the vehicle's travel direction. The battery swapping device is used to perform battery swapping operations through the opening.

[0058] In non-battery swapping mode, the movable door panel 20 is in the closed position, sealing the opening and eliminating gaps and height differences with the surrounding structure. For example, it is flush with the fixed door panel 10, forming a complete and flat support surface, which can effectively prevent foreign objects such as mud and fallen leaves from intruding below, protecting the battery swapping device, and eliminating the risk of tripping. In battery swapping mode, the drive mechanism 60 drives the movable door panel 20 to slide and descend. The movable door panel 20 descends under the guidance of the lifting guide assembly 40, and slides horizontally under the guidance of the sliding guide assembly 30, thereby reducing the space occupied and avoiding the battery swapping device below. For example, it slides under the fixed door panel 10, fully opening the opening to avoid the lifting and unlocking movements of the battery swapping device.

[0059] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application.

Claims

1. A protective device (100), characterized in that, include: Frame (50) has an opening; A movable door panel (20) is disposed on the frame (50) and can slide and rise and fall to open and close the opening; The sliding guide assembly (30) includes a guide rail (31), a sliding rolling element (32), and a linkage assembly (33). The guide rail (31) is disposed on the frame (50), and the sliding rolling element (32) is connected to the movable door panel (20) through the linkage assembly (33) and is rolled and supported on the guide rail (31). The lifting guide assembly (40) includes a guide structure (41) and a lifting rolling element (42). The guide structure (41) is disposed on the frame (50), and the lifting rolling element (42) is rotatably disposed on the movable door panel (20) and rolls with the guide structure (41) during at least a portion of the travel of the movable door panel (20) to guide the movable door panel (20) to rise and fall.

2. The protective device (100) according to claim 1, characterized in that, Also includes: A drive mechanism (60) is connected to the movable door panel (20) for driving the movable door panel (20) to slide.

3. The protective device (100) according to claim 2, characterized in that, The drive mechanism (60) includes a drive member (61) and a transmission assembly (62). The drive member (61) is connected to the transmission assembly (62) in a transmission manner. The transmission assembly (62) is connected to the movable door panel (20) or the connecting rod assembly (33) corresponding to the movable door panel (20).

4. The protective device (100) according to claim 2 or 3, characterized in that, The number of movable door panels (20) is two, and the driving mechanism (60) is used to drive the two movable door panels (20) to slide towards each other to jointly close the opening, and to slide away from each other to jointly open the opening.

5. The protective device (100) according to claim 1, characterized in that, The linkage assembly (33) includes a support plate (331) and at least two linkages (332). The support plate (331) is arranged parallel to the movable door panel (20). Each linkage (332) is parallel to each other and the two ends of each linkage (332) are respectively hinged to the support plate (331) and the movable door panel (20). The number of the sliding rolling elements (32) is at least two, and they are installed at intervals on the support plate (331) along the extension direction of the support plate (331).

6. The protective device (100) according to claim 5, characterized in that, The sliding rolling body (32) is a traveling roller. The traveling roller includes a base (321), a roller (322), and an oil pipe adapter block (323). The base (321) is mounted on the support plate (331). The roller (322) is rotatably mounted on the base (321). The oil pipe adapter block (323) is mounted on the base (321) and has an oil inlet and an oil outlet. The oil inlet is used to connect to an external oil supply pipeline. The oil outlet is connected to a bearing inside the roller (322) to supply oil to the bearing.

7. The protective device (100) according to claim 1, characterized in that, The frame (50) includes two side panels (51) arranged opposite to each other and a plurality of crossbeams (52) connecting the two side panels (51). The two side panels (51) are provided with the guide rail (31) and the guide structure (41).

8. The protective device (100) according to claim 1, characterized in that, The guide structure (41) includes a track plate, which is provided with a guide groove (411) for rolling cooperation with the lifting rolling body (42).

9. The protective device (100) according to claim 7, characterized in that, The guide structure (41) includes a guide groove formed on the side plate (51) for rolling engagement with the lifting rolling body (42).

10. The protective device (100) according to claim 1, characterized in that, Also includes: A fixed door panel (10) is provided on the frame (50); The movable door panel (20) has a closed position that closes the opening and is flush with the fixed door panel (10), and an open position that opens the opening and is at least partially hidden under the fixed door panel (10).

11. The protective device (100) according to claim 10, characterized in that, The number of fixed door panels (10) is two, and the two fixed door panels (10) are arranged at intervals and the space between them constitutes the opening.

12. A battery swapping station, characterized in that, include: The protective device (100) as described in any one of claims 1-11; as well as A battery swapping device for performing a battery replacement operation through the opening.

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