Connection structure and vehicle

Abstract

The application relates to the technical field of vehicle battery replacement, in particular to a connecting structure and a vehicle. The connecting structure is used for connecting a battery box and a vehicle frame and comprises a connecting assembly and at least one locking assembly. The connecting assembly comprises a moving piece, a first connecting piece and a second connecting piece. The locking assembly is used for being inserted on the battery box to jointly lock the battery box on the vehicle frame with the first connecting piece. The moving piece drives the first connecting piece and the second connecting piece to move towards the battery box, so that the first connecting piece is separated from the locking assembly, and the second connecting piece partially abuts against the locking assembly. When the second connecting piece partially abuts against the locking assembly, the first connecting piece moves towards the second connecting piece under the driving of the moving piece and is separated from the locking assembly together with the second connecting piece, so as to unlock the battery box from the vehicle frame. The connecting structure and the vehicle improve the replacement efficiency of the battery box.

Description

Technical Field

[0001] This application relates to the field of vehicle battery swapping technology, and in particular to a connection structure and a vehicle. Background Technology

[0002] Heavy-duty trucks, or heavy-duty trucks for short, are an important part of commercial vehicles. The battery capacity of pure electric heavy-duty trucks is insufficient to meet the needs of long-distance operation. Increasing the battery capacity would lengthen the charging time of the heavy-duty truck battery, affecting transportation efficiency. Therefore, pure electric heavy-duty trucks usually adopt "battery swapping" technology to meet their operating needs, which involves removing the depleted battery pack and replacing it with a fully charged battery pack.

[0003] In related technologies, the battery box is connected to the heavy-duty truck frame with screws. During battery swapping, workers need to manually remove the connecting screws between the battery box and the heavy-duty truck frame to remove the depleted battery box, and then manually tighten the screws to install the fully charged battery box.

[0004] However, the above-mentioned method of replacing the battery box is time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0005] This application provides a connection structure and vehicle that improves the replacement efficiency of the battery box.

[0006] In a first aspect, the connection structure provided in this application is used to connect the battery box and the vehicle frame, including a connection component and at least one locking component.

[0007] The connection assembly includes a movable part, a first connector, and a second connector. The first connector is disposed on the movable part, and the second connector is sleeved on the movable part. The movable part is used to be mounted on the vehicle frame, and part of the movable part is inserted into the battery box. Both the first connector and the second connector are located inside the battery box.

[0008] The locking assembly is inserted into the battery box to lock the battery box to the frame together with the first connector.

[0009] The movable element is configured to drive both the first connector and the second connector toward the battery compartment, such that the first connector disengages from the locking assembly, and the second connector partially abuts against the locking assembly.

[0010] The first connector is configured such that, when the second connector part abuts against the locking assembly, it moves toward the second connector under the action of the moving member to abut against a portion of the second connector, thereby causing the second connector to move away from the battery box and disengage from the locking assembly, thereby unlocking the battery box and the vehicle frame.

[0011] In one possible implementation, the connection structure provided in this application has a protrusion on the moving member, the protrusion being located on the side of the second connector away from the battery box, and the protrusion being used to drive the second connector to move toward the battery box.

[0012] In one possible implementation, the connection structure provided in this application further includes a first elastic element, which is sleeved on the movable element. One end of the first elastic element is used to connect with the frame, and the other end of the first elastic element is connected with the second connecting element.

[0013] In one possible implementation, the connection structure provided in this application further includes a first base and a second base, wherein the first base connects the first elastic member to the frame, and the second base connects the first elastic member to the second connector.

[0014] In one possible implementation, the connection structure provided in this application has a first connector and a second connector that are both hemispherical, and the first connector and the second connector are symmetrically arranged.

[0015] In one possible implementation, the connection structure provided in this application further includes a sleeve, which is fitted onto a portion of the moving part and is used to connect to the vehicle frame.

[0016] The moving part is provided with a partition plate, which divides the sleeve into a first chamber and a second chamber.

[0017] The sleeve has a first oil hole and a second oil hole. The first oil hole is connected to the first chamber, through which hydraulic oil is injected or flows out of the first chamber. The second oil hole is connected to the second chamber, through which hydraulic oil is injected or flows out of the second chamber, so as to drive the moving part to move toward or away from the battery box.

[0018] In one possible implementation, the connection structure provided in this application further includes a hydraulic system, which includes an oil reservoir, an oil pump, oil pipes, and a control valve. The oil pipes connect the oil reservoir, the oil pump, and the control valve, and the control valve is connected to a first oil port and a second oil port respectively through the oil pipes.

[0019] The control valve controls the oil pipe to inject hydraulic oil into the second oil hole to drive the moving part to move towards the battery box, and the control valve controls the oil pipe to inject hydraulic oil into the first oil hole to drive the moving part to move away from the battery box.

[0020] In one possible implementation, the connection structure provided in this application includes a locking assembly comprising a locking tongue and a second elastic member. The second elastic member connects the locking tongue to the battery box, and a portion of the locking tongue extends into the battery box to lock the battery box to the vehicle frame together with the first connector.

[0021] In one possible implementation, the connection structure provided in this application has an abutment surface on the locking tongue, which is inclined toward the frame.

[0022] Secondly, the vehicle provided in this application includes a vehicle body and any of the connection structures provided in the first aspect above, which are disposed on the vehicle body.

[0023] The connection structure and vehicle provided in this application are used to connect a battery box and a vehicle frame. The connection structure includes a connection assembly and at least one locking assembly. The connection assembly includes a movable member, a first connector, and a second connector. The movable member is mounted on the vehicle frame, and a portion of the movable member is inserted into the battery box. Both the first connector and the second connector are located within the battery box. The locking assembly is inserted into the battery box to lock the battery box to the vehicle frame together with the first connector.

[0024] When removing a depleted battery box, the moving component drives both the first and second connecting parts towards the battery box, disengaging the first connecting part from the locking assembly, while the second connecting part partially abuts against the locking assembly. Next, the moving component moves the first connecting part towards the second connecting part until both are disengaged from the locking assembly, unlocking the battery box from the frame. When installing a fully charged battery box, the moving component drives both the first and second connecting parts towards the battery box until the first connecting part and the locking assembly together lock the battery box to the frame. This completes the battery box replacement, making the operation convenient and improving replacement efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the connection structure provided in the embodiments of this application;

[0027] Figure 2 for Figure 1 A structural diagram of another state;

[0028] Figure 3 for Figure 1 A structural diagram of another state;

[0029] Figure 4 This is a partially exploded view of the connecting components provided in an embodiment of this application;

[0030] Figure 5 Schematic diagram of the locking assembly provided in the embodiments of this application Figure 1 ;

[0031] Figure 6 Schematic diagram of the locking assembly provided in the embodiments of this application Figure 2 ;

[0032] Figure 7 A schematic diagram of the hydraulic system provided in the embodiments of this application. Figure 1 ;

[0033] Figure 8 A schematic diagram of the hydraulic system provided in the embodiments of this application. Figure 2 .

[0034] Explanation of reference numerals in the attached figures:

[0035] 10-Battery Box;

[0036] 20-Frame;

[0037] 100 - Connecting component; 101 - First connecting component; 102 - Second connecting component; 103 - Third connecting component; 104 - Fourth connecting component;

[0038] 110 - Moving part; 111 - First moving section; 112 - Second moving section; 113 - Protrusion; 114 - Divider plate;

[0039] 120 - First connector;

[0040] 130 - Second connector;

[0041] 140 - First elastic element;

[0042] 150 - First base;

[0043] 160 - Second base;

[0044] 170 - Sleeve; 171 - First chamber; 172 - Second chamber; 173 - First oil hole; 174 - Second oil hole;

[0045] 200-Locking assembly; 210-Lock tongue; 211-Abutting surface; 220-Second elastic element; 230-Locking base;

[0046] 300-Hydraulic system; 310-Oil reservoir; 320-Oil pump; 330-Oil pipe; 340-Control valve; 350-Oil pressure sensor; 360-Check valve.

[0047] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0048] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0049] Secondly, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction 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.

[0050] Furthermore, it should be noted that in the description of this application, the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, 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.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0052] As the background art illustrates, in related technologies, the battery box is connected to the heavy-duty truck's frame via screws. During battery swapping, workers need to manually remove the screws connecting the battery box to the truck's frame to remove the depleted battery box, and then manually tighten the screws to install the fully charged battery box. However, this method of replacing the battery box is time-consuming, labor-intensive, and inefficient.

[0053] Based on this, the present application provides a connection structure and a vehicle. The connection structure is used to connect a battery box and a vehicle frame. The connection structure includes a connection component and at least one locking component. The connection component includes a movable member, a first connecting member, and a second connecting member. The movable member is mounted on the vehicle frame, and a portion of the movable member is inserted into the battery box. Both the first and second connecting members are located within the battery box. The locking component is inserted into the battery box to lock the battery box to the vehicle frame together with the first connecting member.

[0054] When removing a depleted battery box, the moving component drives both the first and second connecting parts towards the battery box, disengaging the first connecting part from the locking assembly, while the second connecting part partially abuts against the locking assembly. Next, the moving component moves the first connecting part towards the second connecting part until both are disengaged from the locking assembly, unlocking the battery box from the frame. When installing a fully charged battery box, the moving component drives both the first and second connecting parts towards the battery box until the first connecting part and the locking assembly together lock the battery box to the frame. This completes the battery box replacement, making the operation convenient and improving replacement efficiency.

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0056] Reference Figures 1 to 3 As shown, the connection structure provided in this application is used to connect the battery box 10 and the vehicle frame 20, and includes a connection assembly 100 and at least one locking assembly 200.

[0057] The connection assembly 100 includes a movable part 110, a first connector 120, and a second connector 130. The first connector 120 is disposed on the movable part 110, and the second connector 130 is sleeved on the movable part 110. The movable part 110 is used to be mounted on the vehicle frame 20, and part of the movable part 110 is inserted into the battery box 10. Both the first connector 120 and the second connector 130 are located inside the battery box 10.

[0058] The locking assembly 200 is inserted into the battery box 10 to lock the battery box 10 to the frame 20 together with the first connector 120.

[0059] The movable member 110 is configured to drive both the first connector 120 and the second connector 130 toward the battery box 10, so that the first connector 120 disengages from the locking assembly 200 and the second connector 130 partially abuts against the locking assembly 200.

[0060] The first connector 120 is configured such that, when the second connector 130 partially abuts against the locking assembly 200, it moves toward the second connector 130 under the action of the moving member 110 to abut against a portion of the second connector 130, thereby causing the second connector 130 to move away from the battery box 10 and disengage from the locking assembly 200, thereby unlocking the battery box 10 and the vehicle frame 20.

[0061] Reference Figure 1 As shown, the first connector 120 is disposed on the movable member 110, which is used to mount on the frame 20, and a portion of the movable member 110 is inserted into the battery box 10. The first connector 120 is located inside the battery box 10. The locking assembly 200 is inserted into the battery box 10 to lock the battery box 10 to the frame 20 together with the first connector 120. This ensures that the battery box 10 is stably fixed to the frame 20, preventing it from loosening or falling off during vehicle operation.

[0062] At least one locking component 200. For example, there may be one or more locking components 200. The embodiments of this application do not impose too much limitation on the number of locking components 200.

[0063] When disassembling the depleted battery box 10, refer to... Figure 2 As shown, the movable part 110 is oriented toward the battery box 10 (i.e., Figure 2 The first connector 120 moves in the positive direction of Y (indicated by the middle arrow) to drive the second connector 130 to move synchronously toward the battery box 10. During this movement, the first connector 120 gradually moves away from the locking assembly 200, while the second connector 130 gradually moves closer to the locking assembly 200. When the second connector 130 contacts the locking assembly 200, it applies pressure along the locking assembly 200. Figure 2 The force applied in the positive or negative direction of X, as indicated by the middle arrow, pushes open the locking assembly 200, thereby continuing to move toward the battery box 10 until part of the second connector 130 abuts against the locking assembly 200, at which point the first connector 120 disengages from the locking assembly 200.

[0064] Next, refer to Figure 3 As shown, the moving part 110 is away from the battery box 10 (i.e., Figure 3The first connector 120 moves synchronously toward the second connector 130 (as indicated by the middle arrow in the opposite direction of Y) until they abut against each other. The first connector 120 can then apply a force to the second connector 130, pushing it to move synchronously in the opposite direction of Y. Since the first connector 120 and the second connector 130 abut against each other, and the second connector 130 partially abuts against the locking assembly 200, the movement of the second connector 130 and the first connector 120 in the opposite direction of Y can apply a force to the locking assembly 200 to open it, causing the first connector 120 and the second connector 130 to move away from the locking assembly 200 until both are disengaged from the locking assembly 200, thus unlocking the battery box 10 from the frame 20.

[0065] When installing the fully charged battery box 10, refer to... Figure 1 As shown, the movable member 110 moves toward the battery compartment 10 so that a portion of the movable member 110 is inserted into the battery compartment 10, and both the first connector 120 and the second connector 130 are located inside the battery compartment 10. The movable member 110 continues to drive the first connector 120 to move toward the battery compartment 10. During the movement, the first connector 120 gradually approaches the locking assembly 200. When the first connector 120 contacts the locking assembly 200, the first connector 120 applies an edge-to-edge force to the locking assembly 200. Figure 1 The force applied in the positive or negative direction of X, as indicated by the middle arrow, pushes open the locking assembly 200, allowing it to continue moving towards the battery box 10 until the first connector 120 and the locking assembly 200 together lock the battery box 10 to the frame 20. This completes the replacement of the battery box 10, making the operation convenient and improving the replacement efficiency of the battery box 10.

[0066] In some embodiments, refer to Figure 4 As shown, the movable member 110 has a protrusion 113, which is located on the side of the second connector 130 away from the battery box 10. The protrusion 113 is used to drive the second connector 130 to move toward the battery box 10.

[0067] In a specific implementation, the movable member 110 may include a first movable segment 111 and a second movable segment 112, with a protrusion 113 disposed between the first movable segment 111 and the second movable segment 112. A through hole is provided on the second connecting member 130, and the second connecting member 130 is sleeved on the first movable segment 111 through the through hole. The protrusion 113 abuts against the periphery of the through hole of the second connecting member 130. When the protrusion 113 moves toward the battery box 10, the protrusion 113 can apply a force to the second connecting member 130 abutting against it, thereby pushing the second connecting member 130 to move synchronously toward the battery box 10.

[0068] It should be noted that the protrusion 113 can be a circular protrusion or a square protrusion, or a strip-shaped protrusion covering the second moving section 112, or a protrusion of other shapes, as long as it can drive the second connector 130 to move toward the battery box 10. This application embodiment does not impose too many restrictions on this.

[0069] It should also be noted that the second movable segment 112 is used to be inserted into the frame 20. The first connecting member 120 is disposed on the first movable member 110. Exemplarily, a threaded hole can be provided on the first connecting member 120 and an external thread can be provided on the first movable member 110 to engage with the first connecting member 120; alternatively, a threaded segment can be provided on the first connecting member 120 and a threaded hole can be provided on the first movable member 110 to engage with the threaded segment and the threaded hole; alternatively, a plug-in hole can be provided on the first connecting member 120 and a plug-in part can be provided on the first movable segment 111 to plug into the plug-in hole; the first connecting member 120 and the first movable member 110 can also be connected in other ways, and this application embodiment does not impose too many restrictions on this.

[0070] In some embodiments, refer to Figure 4 As shown, the connecting assembly 100 also includes a first elastic member 140, which is sleeved on the moving member 110. One end of the first elastic member 140 is used to connect with the frame 20, and the other end of the first elastic member 140 is connected with the second connecting member 130.

[0071] Understandably, one end of the first elastic member 140 is used to connect to the frame 20, and the other end of the first elastic member 140 is connected to the second connecting member 130, thereby flexibly connecting the second connecting member 130 to the frame 20. This allows the first elastic member 140 to undergo elastic deformation when the moving member 110 drives the second connecting member 130 to move towards the battery box 10, thus allowing the second connecting member 130 to move. Exemplarily, the first elastic member 140 can be a spring or other mechanical components, and this application embodiment does not impose excessive limitations on this.

[0072] In some embodiments, refer to Figure 4 As shown, the connecting assembly 100 also includes a first base 150 and a second base 160. The first base 150 connects the first elastic member 140 to the frame 20, and the second base 160 connects the first elastic member 140 to the second connector 130.

[0073] Specifically, connecting holes can be provided on the first base 150. Screws are used to fasten the first base 150 to the frame 20 through the connecting holes. Then, the first elastic member 140 is connected to the first base 150 to achieve the connection between the first elastic member 140 and the frame 20. One side of the second base 160 is connected to the first elastic member 140, and the other side is connected to the second connector 130, thereby achieving the connection between the second connector 130 and the first elastic member 140.

[0074] Both the first base 150 and the second base 160 have through holes in the middle for the moving member 110 to pass through. Thus, the moving member 110 can pass through the first base 150, the first elastic member 140, the second base 160 and the second connecting member 130 in sequence, and finally connect with the first connecting member 120.

[0075] In some embodiments, refer to Figure 4 As shown, both the first connector 120 and the second connector 130 are hemispherical, and the first connector 120 and the second connector 130 are symmetrically arranged.

[0076] Specifically, the first connector 120 and the second connector 130 are symmetrically arranged hemispherical shapes. When the first connector 120 moves toward the second connector 130 and comes into contact with it, the bottom surface of the first connector 120 can completely overlap with the bottom surface of the second connector 130, and the two merge into a complete sphere. Since the second connector 130 is partially in contact with the locking assembly 200 at this time, the sphere can move relative to the locking assembly 200, so that the first connector 120 and the second connector 130 move away from the locking assembly 200 until both the first connector 120 and the second connector 130 are disengaged from the locking assembly 200, thereby unlocking the battery box 10 from the frame 20.

[0077] In some embodiments, refer to Figures 1 to 3 As shown, the connecting assembly 100 also includes a sleeve 170, which is sleeved on a portion of the movable part 110 and is used to connect with the frame 20.

[0078] The movable part 110 is provided with a partition plate 114, which divides the sleeve 170 into a first chamber 171 and a second chamber 172.

[0079] The sleeve 170 has a first oil hole 173 and a second oil hole 174. The first oil hole 173 is connected to the first chamber 171. Hydraulic oil is injected into or flows out of the first chamber 171 through the first oil hole 173. The second oil hole 174 is connected to the second chamber 172. Hydraulic oil is injected into or flows out of the second chamber 172 through the second oil hole 174 to drive the moving member 110 to move toward or away from the battery box 10.

[0080] The sleeve 170 is used to connect with the frame 20. For example, the sleeve 170 and the frame 20 can be connected by screws or other means. The sleeve 170 can be a cuboid, a cube, a cylinder, or other shapes. This application embodiment does not impose too many restrictions on this.

[0081] Specifically, when hydraulic oil is injected into the second chamber 172 through the second oil hole 174, the pressure inside the second chamber 172 increases, driving the moving part 110 to move toward the battery box 10, thereby increasing the volume of the second chamber 172 and decreasing the volume of the first chamber 171, and the hydraulic oil in the first chamber 171 is discharged through the first oil hole 173.

[0082] When hydraulic oil is injected into the first chamber 171 through the first oil hole 173, the pressure inside the first chamber 171 increases, driving the moving part 110 to move away from the battery box 10. As a result, the volume of the first chamber 171 increases, the volume of the second chamber 172 decreases, and the hydraulic oil in the second chamber 172 is discharged through the second oil hole 174.

[0083] In some embodiments, refer to Figure 1 , Figure 7 and Figure 8 As shown, the connection structure also includes a hydraulic system 300, which includes an oil reservoir 310, an oil pump 320, an oil pipe 330, and a control valve 340. The oil pipe 330 connects the oil reservoir 310, the oil pump 320, and the control valve 340. The control valve 340 is connected to the first oil hole 173 and the second oil hole 174 through the oil pipe 330.

[0084] Control valve 340 controls oil pipe 330 to inject hydraulic oil into second oil hole 174 to drive moving part 110 toward battery box 10. Control valve 340 controls oil pipe 330 to inject hydraulic oil into first oil hole 173 to drive moving part 110 away from battery box 10.

[0085] It should be noted that the control valve 340 can be an electric four-way valve, and the control valve 340 can be electrically connected to the vehicle's controller.

[0086] Reference Figure 2 and Figure 7As shown, when disassembling the depleted battery pack 10, the vehicle controller controls the control valve 340 to open the circuit for hydraulic oil from the oil pump 320 into the second chamber 172 and the circuit for hydraulic oil from the first chamber 171 into the reservoir 310. Simultaneously, the hydraulic pump 320 starts operating, drawing hydraulic oil from the reservoir 310 into the second chamber 172. At the same time, the space in the first chamber 171 is compressed, forcing the hydraulic oil in the first chamber 171 into the reservoir 310. The moving part 110 begins to move towards the battery pack 10, and the locking assembly 200 loses its preload. As the oil pump 320 continues to operate, the moving part 110 drives the first connecting part 120 and the second connecting part 130 to continue moving towards the battery pack 10 until the first connecting part 120 disengages from the locking assembly 200 and the second connecting part 130 partially abuts against the locking assembly 200.

[0087] Next, refer to Figure 3 and Figure 8 As shown, the vehicle controller controls the control valve 340 to conduct hydraulic oil from the oil pump 320 into the circuit of the first chamber 171 and from the second chamber 172 into the oil reservoir 310. The oil pump 320 continues to work, and the moving part 110 begins to drive the first connecting part 120 toward the second connecting part 130. At this time, the second connecting part 130 remains stationary until the first connecting part 120 and the second connecting part 130 come into contact. Since the second connecting part 130 partially abuts against the locking assembly 200, the first connecting part 120 and the second connecting part 130 can push open the locking assembly 200 and continue to move away from the direction of the battery box 10 until the first connecting part 120 and the second connecting part 130 are both disengaged from the locking assembly 200, thereby unlocking the battery box 10 from the frame 20. The vehicle controller then controls the oil pump 320 to stop working, and the battery box 10 can be easily removed.

[0088] Reference Figure 1 and Figure 7As shown, when installing a fully charged battery box 10, the first connector 120, the second connector 130, and part of the movable component 110 are inserted into the battery box 10. The vehicle controller controls the control valve 340 to open the circuit for hydraulic oil from the oil pump 320 into the second chamber 172 and the circuit for hydraulic oil from the first chamber 171 into the reservoir 310. The oil pump 320 continues to work, and the movable component 110 begins to move towards the battery box 10. The first connector 120 pushes open the locking assembly 200. The vehicle controller controls the movement stroke of the movable component 110 so that the first connector 120 is located in the positive Y direction of the locking assembly 200. The vehicle controller controls the control valve 340 to conduct hydraulic oil from the oil pump 320 into the circuit of the first chamber 171 and from the second chamber 172 into the oil tank 310. The moving part 110 drives the first connecting part 120 to move toward the locking assembly 200 until the first connecting part 120 contacts the locking assembly 200. Under the force of the hydraulic oil, the first connecting part 120 presses the locking assembly 200, so that the locking assembly 200 and the first connecting part 120 together lock the battery box 10 to the frame 20.

[0089] It should also be noted that an oil pressure sensor 350 can be installed on the oil pipe 330. On one hand, the oil pressure sensor 350 can detect the oil pressure within the hydraulic system 300. When the oil pressure sensor 350 detects that the pressure value has reached the target value, it indicates that the battery box 10 has been secured, and the oil pump 320 is shut down. On the other hand, it can promptly alert the driver or staff in case of hydraulic oil leakage, reducing the possibility of a hydraulic system 300 malfunction affecting battery replacement. A one-way valve 360 ​​can also be installed on the oil pipe 330 to control the hydraulic oil flow in a fixed direction, preventing backflow that could affect the locking angle or locking force.

[0090] In some embodiments, refer to Figure 5 As shown, the locking assembly 200 includes a locking tongue 210 and a second elastic member 220. The second elastic member 220 connects the locking tongue 210 and the battery box 10. Part of the locking tongue 210 extends into the battery box 10 to lock the battery box 10 to the frame 20 together with the first connector 120.

[0091] It should be noted that the locking assembly 200 may also include a lock seat 230. The locking tongue 210 may include an abutment section and a threaded section. A second elastic member 220 is sleeved on the threaded section, with its two ends abutting against the abutment section and the inner wall of the battery box 10, respectively. The lock seat 230 is located outside the battery box 10 and has an internal thread that matches the threaded section. The lock seat 230 is screwed into the threaded section. The relative position of the lock seat 230 and the threaded section is adjusted by the thread, thereby limiting the length of the abutment section extending into the battery box 10.

[0092] When a serious vehicle malfunction requires the battery box 10 to be detached, and the vehicle's electronic control system is damaged, the driver or staff can manually adjust the control valve 340 to open the circuit for hydraulic oil from the oil pump 320 into the second chamber 172 and from the first chamber 171 into the reservoir 310. At this time, the first connecting member 120 is no longer under hydraulic preload, allowing the external locking seat 230 of the battery box 10 to be pulled outwards and simultaneously tightened inwards. This disengages the locking tongue 210 from the first connecting member 120, preventing it from returning to its original position under the force of the second elastic member 220. The battery box 10 can then be easily detached from the frame 20. All of the above components can be easily replaced with spare parts when damaged.

[0093] In some embodiments, refer to Figure 1 and Figure 5 As shown, the latch 210 has an abutment surface 211, which is inclined toward the frame 20.

[0094] Understandably, the contact surface 211 of the locking tongue 210 is inclined toward the frame 20. When the first connector 120 or the second connector 130 contacts the contact surface 211, the first connector 120 or the second connector 130 can push open the locking tongue 210, which further improves the reliability of the locking assembly 200.

[0095] This application also provides a vehicle, including a vehicle body and a connection structure disposed on the vehicle body.

[0096] In some embodiments, the number of connecting components 100 is at least one, and at least one connecting component 100 is disposed on the frame 20 of the vehicle body. The locking component 200 and the connecting component 100 together lock the battery box 10 to the frame 20.

[0097] For example, refer to Figures 6 to 8 As shown, the number of connecting components 100 can be four, and the four connecting components 100 can be distinguished as the first connecting component 101, the second connecting component 102, the third connecting component 103 and the fourth connecting component 104.

[0098] The specific structure and working method of the connection structure have been described in detail in the above embodiments, and will not be repeated here.

[0099] Those skilled in the art will understand that the connection structure and vehicle provided in this application are for connecting the battery box 10 and the frame 20. The connection structure includes a connection assembly 100 and at least one locking assembly 200. The connection assembly 100 includes a movable member 110, a first connecting member 120, and a second connecting member 130. The movable member 110 is mounted on the frame 20, and a portion of the movable member 110 is inserted into the battery box 10. Both the first connecting member 120 and the second connecting member 130 are located within the battery box 10. The locking assembly 200 is inserted into the battery box 10 to lock the battery box 10 to the frame 20 together with the first connecting member 120.

[0100] When removing the depleted battery box 10, the moving part 110 drives both the first connecting part 120 and the second connecting part 130 to move towards the battery box 10, so that the first connecting part 120 disengages from the locking assembly 200, and the second connecting part 130 partially abuts against the locking assembly 200. Then, the moving part 110 drives the first connecting part 120 towards the second connecting part 130 until both disengage from the locking assembly 200, thereby unlocking the battery box 10 from the frame 20. When installing a fully charged battery box 10, the moving part 110 drives the first connecting part 120 and the second connecting part 130 towards the battery box 10 until the first connecting part 120 and the locking assembly 200 together lock the battery box 10 to the frame 20. This completes the replacement of the battery box 10, which is convenient and improves the replacement efficiency.

[0101] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0102] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0103] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A connection structure for connecting a battery box (10) and a vehicle frame (20), characterized in that, It includes a connecting component (100) and at least one locking component (200). The connecting assembly (100) includes a movable part (110), a first connector (120), and a second connector (130). The first connector (120) is disposed on the movable part (110), and the second connector (130) is sleeved on the movable part (110). The movable part (110) is used to be disposed on the vehicle frame (20), and a portion of the movable part (110) is inserted into the battery box (10). Both the first connector (120) and the second connector (130) are located inside the battery box (10). The locking assembly (200) is inserted into the battery box (10) to lock the battery box (10) to the frame (20) together with the first connector (120). The movable member (110) is configured to drive both the first connector (120) and the second connector (130) toward the battery box (10) so that the first connector (120) disengages from the locking assembly (200) and the second connector (130) partially abuts against the locking assembly (200). The first connector (120) is configured such that, when the second connector (130) partially abuts against the locking assembly (200), it moves toward the second connector (130) under the action of the moving member (110) to abut against a portion of the second connector (130), thereby causing the second connector (130) to move away from the battery box (10) and both the first connector (130) and the second connector (130) to disengage from the locking assembly (200), thereby unlocking the battery box (10) and the vehicle frame (20). The connecting assembly (100) further includes a first elastic element (140) which is sleeved on the moving member (110). One end of the first elastic element (140) is used to connect to the frame (20), and the other end of the first elastic element (140) is connected to the second connecting member (130) so that when the moving member (110) drives the second connecting member (130) to move toward the battery box (10), the first elastic element (140) undergoes elastic deformation to allow the second connecting member (130) to move.

2. The connection structure according to claim 1, characterized in that, The movable member (110) has a protrusion (113) located on the side of the second connector (130) away from the battery box (10), and the protrusion (113) is used to drive the second connector (130) to move toward the battery box (10).

3. The connection structure according to claim 1, characterized in that, The connecting assembly (100) further includes a first base (150) and a second base (160), the first base (150) connecting the first elastic member (140) to the frame (20), and the second base (160) connecting the first elastic member (140) to the second connector (130).

4. The connection structure according to claim 3, characterized in that, Both the first connector (120) and the second connector (130) are hemispherical, and the first connector (120) and the second connector (130) are symmetrically arranged.

5. The connection structure according to any one of claims 1 to 4, characterized in that, The connecting assembly (100) further includes a sleeve (170) which is fitted onto a portion of the movable part (110) and is used to connect to the frame (20); The movable part (110) is provided with a partition plate (114), which divides the sleeve (170) into a first chamber (171) and a second chamber (172). The sleeve (170) has a first oil hole (173) and a second oil hole (174). The first oil hole (173) is connected to the first chamber (171). Hydraulic oil is injected into or flows out of the first chamber (171) through the first oil hole (173). The second oil hole (174) is connected to the second chamber (172). Hydraulic oil is injected into or flows out of the second chamber (172) through the second oil hole (174) to drive the moving part (110) to move toward or away from the battery box (10).

6. The connection structure according to claim 5, characterized in that, It also includes a hydraulic system (300), which includes an oil reservoir (310), an oil pump (320), an oil pipe (330), and a control valve (340). The oil pipe (330) connects the oil reservoir (310), the oil pump (320), and the control valve (340). The control valve (340) is connected to the first oil hole (173) and the second oil hole (174) respectively through the oil pipe (330). The control valve (340) controls the oil pipe (330) to inject hydraulic oil into the second oil hole (174) to drive the moving part (110) to move toward the battery box (10), and the control valve (340) controls the oil pipe (330) to inject hydraulic oil into the first oil hole (173) to drive the moving part (110) to move away from the battery box (10).

7. The connection structure according to any one of claims 1 to 4, characterized in that, The locking assembly (200) includes a latch (210) and a second elastic member (220), the second elastic member (220) connecting the latch (210) and the battery box (10), and a portion of the latch (210) extending into the battery box (10) to lock the battery box (10) to the frame (20) together with the first connector (120).

8. The connection structure according to claim 7, characterized in that, The latch (210) has an abutment surface (211) that is inclined toward the frame (20).

9. A vehicle, characterized in that, It includes a vehicle body and a connection structure as described in any one of claims 1 to 8 disposed on the vehicle body.

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