Battery pack connecting device for vehicle

Abstract

The invention discloses a vehicle battery pack connecting device, and belongs to the technical field of battery pack charging for battery changing, the vehicle battery pack connecting device comprises a base, and an electric connector and a trigger piece which are installed on the base, the trigger piece comprises a trigger part for bearing a battery pack and a connecting part movably connected with the base, when the battery pack is placed on the trigger part, the trigger part is subjected to the pressure effect of the battery pack to enable the connecting part to move relative to the base, and the electric connector is driven to move in the horizontal direction and get close to the battery pack to be electrically connected with the battery pack. According to the battery pack connecting device, a driving mechanism used for driving the battery pack to move towards the electric connector does not need to be arranged, the structural design of the battery pack connecting device is simplified, meanwhile, the production cost of the battery pack connecting device is reduced, automation of electric connection between the electric connector and the battery pack is achieved, and links needing manual operation are greatly reduced.

Description

Technical Field

[0001] This application belongs to the field of battery pack charging technology for battery swapping, and specifically relates to a vehicle battery pack connection device. Background Technology

[0002] In daily life, cars are becoming increasingly common, and the widespread use of gasoline-powered vehicles not only exacerbates the consumption of non-renewable resources but also pollutes the environment with exhaust emissions. Faced with the growing imbalance between supply and demand for traditional energy sources and the severe situation of global warming, electric vehicles (EVs) have emerged as a new energy mode of transportation. Due to their advantages such as low noise, high energy efficiency, and zero mobile exhaust emissions, EVs have become one of the strategic emerging industries that many countries prioritize. However, as EVs enter the market, driving range has become a significant factor hindering their development. Drawing inspiration from the traditional method of using refueling to extend the driving range of cars, for EVs, charging depleted battery packs or directly replacing them with fully charged ones has become a key research and development direction for increasing the driving range of EVs.

[0003] Due to limitations in battery material and charging technologies, new energy vehicles require at least tens of minutes to fully charge after running out of power. For some new energy freight vehicles with larger battery packs, the charging time is even longer, significantly impacting the user's driving experience. This is especially true for commercial vehicle owners, as waiting for charging means reduced working hours. However, the time required to replace the battery pack is much shorter than the charging time. Therefore, directly replacing the battery pack has become the first choice for more and more vehicle owners, especially commercial vehicle owners.

[0004] The disassembled, depleted battery packs are first transported to the charging stations. Then, they are charged by connecting to the battery packs via connectors located at each charging station. The connectors contain terminal components that mate with the battery pack's connection port. In practice, the battery pack is placed on the connector, and under gravity, relative movement occurs between the connector and the battery pack, causing the terminal components to connect with the battery pack's connection port to charge the battery pack. However, in existing connectors, the terminal components have a certain tilt angle with the horizontal plane in their free state. During the battery's descent, the terminal components undergo a combined motion with the connector, including horizontal, vertical, and rotational movements, gradually moving closer to the battery pack. However, the rotation of the terminal components can cause an alignment angle with the battery pack, which can easily cause friction or even jamming at the battery pack's connection port, affecting the electrical connection between the gravity connector and the battery pack. Summary of the Invention

[0005] This application provides a vehicle battery pack connection device to solve the technical problems of complex connection process between battery pack and charging connector and difficulty in aligning charging structure with battery pack in conventional technology.

[0006] The technical solution adopted in this application is as follows:

[0007] A vehicle battery pack connection device includes a base, an electrical connector and a trigger mounted on the base. The trigger includes a trigger portion for supporting the battery pack and a connecting portion movably connected to the base. When the battery pack is placed on the trigger portion, the trigger portion is subjected to pressure from the battery pack, causing the connecting portion to move relative to the base, and driving the electrical connector to move horizontally and approach the battery pack to achieve electrical connection with the battery pack.

[0008] By adopting the above technical solution, when using the vehicle battery pack connection device of this application to electrically connect the battery pack, the battery pack is first placed on the trigger part. The trigger part moves under the action of the battery pack's gravity, and at the same time, it drives the connection part connected to it to move relative to the base. During the relative movement of the connection part with the base, it drives the electrical connector to move in the horizontal direction to approach the battery pack, until the electrical connector is inserted into the battery pack and the electrical connection with the battery pack is achieved. In this process, the battery pack is simply placed on the triggering part. The weight of the battery pack serves as the power source, driving the electrical connector to move towards the battery pack through the triggering part and the connecting part. This setup eliminates the need for a separate drive mechanism to move the battery pack towards the connector, simplifying the structural design of the battery pack connection device and reducing production costs. It also automates the electrical connection between the connector and the battery pack, significantly reducing manual operation. Furthermore, during the process from the battery pack being placed on the triggering part until electrical connection is achieved, the connector moves horizontally. Therefore, the terminal assembly within the connector also moves horizontally. There is no angular deviation between the terminal assembly and the battery pack during the connector's movement. The terminal assembly moves laterally with the connector and engages with the battery pack's connection port to achieve electrical connection. This avoids friction or jamming caused by the terminal assembly rotating during the connection process, preventing wear on the connector and battery pack, and improving the connection stability between the connector and battery pack. Furthermore, after the battery pack is placed on the trigger, there will be no horizontal relative displacement between the battery pack and the trigger, which greatly improves the placement stability of the battery pack on the trigger. At the same time, since the movement trajectory of the electrical connector is constant, under the premise of ensuring that the relative position between the battery pack and the trigger is fixed, the electrical connector will inevitably move along the fixed movement trajectory until it achieves electrical connection with the battery pack, thereby further improving the electrical connection efficiency and electrical connection stability of the battery pack connection device.

[0009] Preferably, the electrical connector is slidably connected to the base, and the trigger is rotatably connected to the electrical connector via a linkage. The trigger is subjected to pressure from the battery pack and drives the electrical connector to slide horizontally relative to the base via the linkage.

[0010] By adopting the above technical solution, when making the electrical connection of the battery pack, after the battery pack is placed on the trigger part, the trigger part will be displaced under the pressure of the battery pack, and will drive the connecting part to move relative to the base synchronously. During the synchronous movement of the trigger part and the linkage part, the linkage will also drive the electrical connector to move towards the battery pack. That is, by setting the linkage, a driving force transmission channel is provided between the trigger part and the electrical connector. While the trigger part and the connecting part move synchronously, the linkage drives the electrical connector to move towards the battery pack until the electrical connection with the battery pack is achieved. In addition, the electrical connector is slidably connected to the base. This reduces the friction between the electrical connector and the base, thereby reducing the driving force required for the linkage to move the electrical connector and improving the smoothness of the electrical connector's movement. Furthermore, the horizontal sliding of the electrical connector ensures that the weight of the electrical connector applied to the base is vertically downward, with no component force in other directions. The electrical connector will not slide relative to the base under its own weight, which helps improve the stability of the electrical connector on the base. At the same time, the driving force for the horizontal displacement of the electrical connector is provided only by the linkage, which helps improve the real-time performance and driving stability of the trigger element driving the electrical connector through the linkage.

[0011] Preferably, the first end of the linkage is movably connected to the trigger and the second end is movably connected to the electrical connector. The linkage is tilted to form an angle with the base. The linkage can rotate with the movement of the trigger, causing the angle between the linkage and the base to change, thereby driving the electrical connector to slide relative to the base.

[0012] By adopting the above technical solution, when making electrical connections to the battery pack, the battery pack applies gravity to the trigger, and the linkage rotates under the action of the trigger. During the rotation of the linkage, the horizontal distance between the first and second ends will inevitably change, which in turn changes the horizontal distance between the electrical connectors movably connected to the first and second ends and the trigger, thus realizing the horizontal displacement of the electrical connector. At the same time, when the trigger drives the electrical connector to move horizontally through the linkage, since at least part of the horizontal displacement of the electrical connector is provided by the horizontal expansion and contraction during the rotation of the linkage, the requirement for the horizontal displacement of the trigger per unit displacement of the electrical connector is reduced. This helps to reduce the horizontal displacement or deformation space requirement of the trigger under the pressure of the battery pack, thereby reducing the horizontal space occupation requirement of the battery pack connection device and contributing to the miniaturization of the battery pack connection device.

[0013] Preferably, the trigger element has a first bent portion, the electrical connector has a second bent portion, the first end and the first bent portion each have a first rotating through hole in opposite positions, the second end and the second bent portion each have a second rotating through hole in opposite positions, a first rotating insert shaft passes through the two first rotating through holes to allow the first end to be movably connected to the first bent portion, and a second rotating insert shaft passes through the two second rotating through holes to allow the second end to be movably connected to the second bent portion.

[0014] By adopting the above technical solution, the first bend and the second bend provide connection positions between the linkage and the trigger and the electrical connector, respectively. The rotational connection between the linkage and the trigger and the electrical connector reduces the friction between the linkage and the trigger and the electrical connector during rotation, making the rotation process of the linkage changing the angle with the base smoother and helping to improve the smoothness of the linkage's drive to the electrical connector. In addition, the design of the first bend and the second bend reduces the assembly difficulty of the linkage. When assembling the linkage, it is only necessary to place the first end at the first bend and align the two first rotation through holes, and then insert the first rotation shaft into the first rotation through hole to realize the rotational connection between the linkage and the trigger. Similarly, the same applies when rotating the linkage and the electrical connector, effectively reducing the assembly difficulty of the linkage.

[0015] Preferably, the trigger member has a hollow area on the side of the trigger portion away from the battery pack to accommodate the electrical connector, and the connecting portion is located on the side of the hollow area away from the trigger portion, or the connecting portion is located on both sides of the hollow area adjacent to the trigger portion; the first bending portion is disposed on the side of the trigger portion or the connecting portion near the hollow area.

[0016] By adopting the above technical solution, the hollow area provides space for the electrical connector, allowing the electrical connector and the trigger to overlap vertically, which helps to optimize the structural design of the battery pack connection device. On the other hand, the hollow area provides clearance for the sliding connection between the electrical connector and the base, avoiding interference between the electrical connector and the trigger during the horizontal sliding process, which helps to optimize the smoothness of the electrical connector's movement.

[0017] Preferably, the base is provided with a connecting seat at the position corresponding to the hollow area, and one of the electrical connector and the connecting seat is provided with a first guide slider extending in the horizontal direction, and the other of the two is provided with a first guide groove adapted to the first guide slider. The relative sliding of the electrical connector and the base is realized by the sliding cooperation between the first guide slider and the first guide groove.

[0018] By adopting the above technical solution, the arrangement of the first guide slider and the first guide groove enables the electrical connector to move only along the extension direction of the first guide groove, which improves the accuracy of the moving direction of the electrical connector under the driving action of the linkage and avoids the possibility of the electrical connector being misaligned during movement. In addition, the connecting seat is located in the corresponding hollow area of ​​the base, so that the sliding of the first guide slider in the first guide groove will not interfere with other components and the battery pack located outside the hollow area, thereby improving the connection stability between the electrical connector and the battery pack.

[0019] Preferably, the connecting part is slidably connected to the base, and when the battery pack is placed on the trigger part, the trigger part causes the connecting part to slide relative to the base in the vertical direction.

[0020] By adopting the above technical solution, when the battery pack is electrically connected, when the battery pack is placed on the trigger, the trigger moves under the gravity of the battery pack, and at the same time drives the connecting part to slide relative to the base. The friction force experienced by the connecting part and the base is small when they slide relative to each other, and it can more easily move relative to the base under the action of the trigger. At the same time, the relative sliding method of the connecting part and the base reduces the wear experienced by the connecting part and the base during relative movement, which helps to improve the service life of the connecting part and the base.

[0021] Preferably, one of the connecting part and the base is provided with a second guide slider extending in a vertical direction, and the other of the two is provided with a second guide groove adapted to the second guide slider. The connecting part achieves relative sliding with the base through the sliding cooperation of the second guide slider and the second guide groove.

[0022] By adopting the above technical solution, the second guide slider and the second guide groove are configured so that the connecting part can only move along the extension direction of the second guide groove, that is, it can only slide vertically, which improves the accuracy of the connecting part moving vertically under the driving action of the trigger part and avoids the occurrence of movement deviation of the electrical connector during movement.

[0023] Preferably, the connecting part is rotatably connected to the base, and when the battery pack applies pressure to the trigger part, the connecting part flips under the action of the trigger part.

[0024] By adopting the above technical solution, the connecting part is rotatably connected to the base, which helps to reduce the movement space required when the connecting part and the base move relative to each other. When the installation space of the battery pack connecting device is relatively compact, the smaller movement space occupied by the connecting part allows the battery pack connecting device to be adapted to a smaller installation environment. At the same time, since the battery pack is usually heavy, the triggering part quickly drives the connecting part to move relative to the base under the action of the battery pack's gravity. The instantaneous impact on the connecting part is relatively large. The rotatable connection between the connecting part and the base can reduce the relative force between the connecting part and the base when the connecting part is driven by the triggering part to a certain extent, and reduce the possibility of problems such as relative wear and impact damage caused by excessive instantaneous impact on the connecting part.

[0025] Preferably, it further includes a rotating component, one end of which is fixedly connected to one of the connecting part and the base, and the other end is rotatably connected to the other of the connecting part and the base.

[0026] By adopting the above technical solution, the rotating component plays a connecting role between the connecting part and the base, avoiding the phenomenon of restricted rotation with the base caused by factors such as the size and structural design of the connecting part.

[0027] Preferably, it further includes an elastic reset member connected between the trigger part and the base. When the pressure applied to the trigger part by the battery pack is removed, the trigger member returns to its original position under the elastic force of the elastic reset member and drives the electrical connector to move horizontally away from the battery pack to disengage from the battery pack.

[0028] By adopting the above technical solution, when the battery pack is fully charged, it is removed from the triggering part. The pressure applied to the triggering part by the battery pack is removed, and the elastic reset member drives the triggering member back to its original position by its own elasticity. This causes the electrical connector to move away from the battery pack in the horizontal direction and separate from the battery pack. This eliminates the need for manual or other methods to remove the electrical connector from the battery pack during the unloading process after the battery pack charging is completed. This helps to reduce the complexity of the entire battery pack charging process and thus improve the charging efficiency of the battery pack. In addition, after the charging process of one battery pack is completed, the triggering member resets under the elastic action of the elastic reset member. There is no need to reset the battery pack connection device before charging the next battery pack. Each battery pack is charged sequentially through the battery pack connection device, which improves the continuity of the assembly line charging process of multiple battery packs through the battery pack connection device.

[0029] Preferably, the elastic reset element is a spring, and the base has a bent portion facing the trigger portion for the spring to be fitted.

[0030] By adopting the above technical solution, the bent portion of the base provides an installation position for the spring, allowing the spring to be stably fitted onto the bent portion. Under the compression of the trigger portion, the spring can contract and relax along the extension direction of the bent portion, improving the accuracy of the force direction applied by the spring to the trigger portion, thereby helping to improve the stability of the trigger portion's return process. In addition, the bent portion can also act as a stop and support for the trigger portion. When the electrical connector is electrically connected to the battery pack, the bent portion abuts against the trigger portion, thereby preventing the trigger portion from continuing to move under the gravity of the battery pack, ensuring the connection stability between the electrical connector and the battery pack.

[0031] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0032] When using the vehicle battery pack connection device of this application to electrically connect the battery pack, the battery pack is first placed on the trigger part. The trigger part moves under the action of the battery pack's gravity, and at the same time, it drives the connecting part connected to it to move relative to the base. During the relative movement of the connecting part with the base, it drives the electrical connector to move in the horizontal direction to approach the battery pack, until the electrical connector is inserted into the battery pack and the electrical connection with the battery pack is achieved. In this process, the battery pack is simply placed in the trigger section. The weight of the battery pack serves as the power source, driving the electrical connector to move towards the battery pack through the trigger section and the connecting section. This design eliminates the need for a separate drive mechanism to move the battery pack towards the connector, simplifying the structural design of the battery pack connection device and reducing production costs. It also automates the electrical connection between the connector and the battery pack, significantly reducing manual operation. Furthermore, during the process from when the battery pack is placed in the trigger section until it connects with the connector, the connector moves horizontally. Therefore, the terminal assembly within the connector also moves horizontally. There is no angular deviation between the terminal assembly and the battery pack during the connector's movement. The terminal assembly is inserted laterally into the battery pack's connection port as the connector moves, achieving electrical connection. This avoids friction or jamming caused by the terminal assembly rotating during the connection process, preventing wear on the connector and battery pack, and improving the connection stability between the connector and the battery pack. Furthermore, after the battery pack is placed on the trigger, there will be no horizontal relative displacement between the battery pack and the trigger, which greatly improves the placement stability of the battery pack on the trigger. At the same time, since the movement trajectory of the electrical connector is constant, under the premise of ensuring that the relative position between the battery pack and the trigger is fixed, the electrical connector will inevitably move along the fixed movement trajectory until it achieves electrical connection with the battery pack, thereby further improving the electrical connection efficiency and electrical connection stability of the battery pack connection device. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0034] Figure 1 This is a schematic diagram of the structure of the vehicle battery pack connection device according to the first embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the vehicle battery pack connection device according to the second embodiment of this application;

[0036] Figure 3This is a schematic diagram of the linkage component in the first or second embodiment of this application;

[0037] Figure 4 This is a schematic diagram of the structure of the base and trigger component in the first embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the base and trigger element according to the second embodiment of this application;

[0039] Figure 6 This is a schematic diagram of the trigger element according to the first embodiment of this application;

[0040] Figure 7 This is a schematic diagram of the trigger element in the second embodiment of this application;

[0041] Figure 8 This is a schematic diagram of the electrical connector according to the first embodiment of this application;

[0042] Figure 9 This is a schematic diagram of the structure of the vehicle base according to the first embodiment of this application;

[0043] Figure 10 This is a schematic diagram of the base structure according to the second embodiment of this application;

[0044] Figure 11 This is a schematic diagram of the electrical connector and trigger element according to the second embodiment of this application. Figure 3 ;

[0045] Figure 12 This is a schematic diagram of the trigger and linkage components in the first embodiment of this application.

[0046] in:

[0047] 1. Base, 11. Connecting seat, 12. First guide slide, 13. Second guide slide, 14. Bending part, 15. Mounting plate, 16. Bending plate;

[0048] 2. Electrical connector; 21. Second bend; 22. First guide slider; 23. Connector body; 24. Mounting base;

[0049] 3. Trigger element, 31. Trigger part, 32. Connecting part, 321. Second guide slider, 33. First bending part, 34. Hollow area;

[0050] 4-linkage component, 41 first end, 42 second end;

[0051] 5. First rotating through hole;

[0052] 6. Second rotating through hole;

[0053] 7. First rotating insert shaft;

[0054] 8. Second rotating insert shaft;

[0055] 9 rotating parts;

[0056] 10 elastic reset components;

[0057] 110 Third Rotating Through Hole;

[0058] 120 Third rotating insert shaft. Detailed Implementation

[0059] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0060] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0061] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this application.

[0062] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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.

[0063] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "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 can be combined in any suitable manner in one or more embodiments or examples.

[0064] This application provides a vehicle battery pack connection device, such as... Figure 1 , Figure 2 The two embodiments shown include a base 1, an electrical connector 2 and a trigger 3 mounted on the base 1. The trigger 3 includes a trigger part 31 for carrying the battery pack and a connecting part 32 movably connected to the base 1. When the battery pack is placed on the trigger part 31, the trigger part 31 is subjected to the pressure of the battery pack, causing the connecting part 32 to move relative to the base 1, and driving the electrical connector 2 to move horizontally and approach the battery pack to achieve electrical connection with the battery pack.

[0065] By adopting the above technical solution, when using the vehicle battery pack connection device of this application to electrically connect the battery pack, the battery pack is first placed on the trigger part 31. The trigger part 31 moves under the weight of the battery pack, simultaneously driving the connected part 32 to move relative to the base 1. During this relative movement, the connected part 32 drives the electrical connector 2 to move horizontally towards the battery pack until the electrical connector 2 is inserted into the battery pack and electrically connected. In this process, it is only necessary to place the battery pack on the trigger part 31, using the weight of the battery pack as the power source, and driving the electrical connector 2 towards the battery pack through the trigger part 31 and the connected part 32. This configuration eliminates the need for a drive mechanism to move the battery pack towards the electrical connector 2, simplifying the structural design of the battery pack connection device and reducing production costs. It also automates the electrical connection between the electrical connector 2 and the battery pack, significantly reducing manual operation steps. Furthermore, the process from placing the battery pack on the trigger part 31 until electrical connection with the electrical connector 2 is achieved... During the process, the electrical connector 2 moves in a horizontal direction, and therefore the terminal assembly in the electrical connector 2 also moves in a horizontal direction. During the movement of the electrical connector 2, there will be no angular deviation between the terminal assembly and the battery pack. The terminal assembly is inserted laterally into the connection port of the battery pack as the electrical connector 2 moves to achieve electrical connection between the electrical connector 2 and the battery pack. This avoids friction or jamming between the terminal assembly and the battery pack connection port caused by rotation during the connection process between the electrical connector 2 and the battery pack, thus avoiding wear on the electrical connector and the battery pack, and improving the connection stability between the electrical connector 2 and the battery pack. Furthermore, after the battery pack is placed on the trigger part 31, there is no horizontal relative displacement between the battery pack and the trigger part 31, which greatly improves the placement stability of the battery pack on the trigger part 31. At the same time, since the movement trajectory of the electrical connector 2 is constant, under the premise of ensuring that the relative position between the battery pack and the trigger part 31 is fixed, the electrical connector 2 will inevitably move along the fixed movement trajectory until the electrical connection with the battery pack is achieved. That is, compared with the electrical connection method that drives the battery pack to move closer to the electrical connector 2, the battery pack connection device of this application does not have the connection misalignment phenomenon caused by the movement deviation of the battery pack during the electrical connection process, thereby improving the electrical connection efficiency and electrical connection stability of the battery pack connection device.

[0066] Specifically, the electrical connector 2 includes a connector body 23, which includes a connector head. When the electrical connector 2 is in a connected state, the connector head docks with and communicates with the battery pack, and the connector head extends horizontally toward the trigger part 31.

[0067] In a preferred embodiment of this application, the electrical connector 2 is slidably connected to the base 1, and the trigger 3 is rotatably connected to the electrical connector 2 through the linkage 4. The trigger part 31 is subjected to the pressure of the battery pack and drives the electrical connector 2 to slide horizontally relative to the base 1 through the linkage 4.

[0068] During the electrical connection of the battery pack, after the battery pack is placed on the trigger part 31, the trigger part 31 will be displaced under the pressure of the battery pack, and will drive the connecting part 32 to move relative to the base 1 synchronously. During the synchronous movement of the trigger part 31 and the connecting part, the connecting member 4 will also drive the electrical connector 2 to move towards the battery pack. That is, by setting the connecting member 4, a driving force transmission channel is provided between the trigger part 3 and the electrical connector 2. While the trigger part 31 and the connecting part 32 move synchronously, the connecting member 4 drives the electrical connector 2 to move towards the battery pack until the electrical connection with the battery pack is achieved. In addition, the electrical connector 2 is slidably connected to the base 1, which can... Reducing the friction between the electrical connector 2 and the base 1 reduces the driving force required for the linkage 4 to move the electrical connector 2, thus improving the smoothness of the electrical connector 2's movement. Furthermore, the fact that the electrical connector 2 slides horizontally ensures that the direction of its own weight applied to the base 1 is vertically downward, with no component force in other directions. The electrical connector 2 will not slide relative to the base 1 under its own weight, which helps improve the stability of the electrical connector 2 on the base 1. At the same time, the driving force for the horizontal displacement of the electrical connector 2 is only provided by the linkage 4, which helps improve the real-time performance and driving stability of the trigger 3 driving the electrical connector 2 through the linkage 4.

[0069] This application does not limit the connection method between the electrical connector 2 and the base 1. In another embodiment, the electrical connector 2 can also be connected to the base 1 in a rolling manner. Specifically, the bottom of the electrical connector 2 is provided with a rolling wheel, and the base 1 is provided with a rolling groove extending in the horizontal direction. The rolling wheel drives the relative movement between the electrical connector 2 and the base 1 by rolling in the rolling groove.

[0070] As a preferred embodiment of this implementation, such as Figures 1-5 As shown, the first end 41 of the linkage 4 is movably connected to the trigger 3, and the second end 42 is movably connected to the electrical connector 2. The linkage 4 is inclined and forms an angle with the base 1. The linkage 4 can rotate with the movement of the trigger 3, so that the angle between the linkage 4 and the base 1 changes, thereby causing the electrical connector 2 to slide relative to the base 1.

[0071] During the electrical connection of the battery pack, the battery pack applies gravity to the trigger 31. The linkage 4 rotates under the action of the trigger 3. During the rotation of the linkage 4, the horizontal distance between the first end 41 and the second end 42 will inevitably change, which in turn changes the horizontal distance between the electrical connector 2, which is movably connected to the first end 41 and the second end 42, and the trigger 3. This achieves the displacement of the electrical connector 2 in the horizontal direction. At the same time, when the trigger 3 drives the electrical connector 2 to move in the horizontal direction through the linkage 4, since at least part of the displacement of the electrical connector 2 in the horizontal direction is provided by the horizontal expansion and contraction of the linkage 4 during the rotation, the demand for the horizontal displacement of the trigger 3 per unit displacement of the electrical connector 2 is reduced. This helps to reduce the horizontal displacement or deformation space requirement of the trigger 3 under the pressure of the battery pack, thereby reducing the space occupation requirement of the battery pack connection device in the horizontal direction and contributing to the miniaturization of the battery pack connection device.

[0072] This embodiment does not limit the movement of the connecting member 4 in relation to the electrical connector 2. In one example, the connecting member 4 is located in front of the electrical connector 2 in the direction of movement when it approaches the battery pack. In this example, the angle between the connecting member 4 and the base 1 gradually decreases, and the horizontal distance between the first end 41 and the second end 42 gradually decreases, thereby pulling the electrical connector 2 towards the direction of movement closer to the battery pack. In another example, the connecting member 4 is located in the rear of the electrical connector 2 in the direction of movement when it approaches the battery pack. In this example, the angle between the connecting member 4 and the base 1 gradually increases, and the horizontal distance between the first end 41 and the second end 42 gradually increases, thereby pushing the electrical connector 2 towards the direction of movement closer to the battery pack.

[0073] As a preferred example in this embodiment, such as Figure 3 , Figures 6-8 As shown, the trigger 3 has a first bent portion 33, the electrical connector 2 has a second bent portion 21, the first end 41 and the first bent portion 33 are both provided with a first rotating through hole 5 in opposite positions, the second end 42 and the second bent portion 21 are both provided with a second rotating through hole 6 in opposite positions, a first rotating insert shaft 7 passes through the two first rotating through holes 5 so that the first end 41 and the first bent portion 33 are movably connected, and a second rotating insert shaft 8 passes through the two second rotating through holes 6 so that the second end 42 and the second bent portion 21 are movably connected.

[0074] By adopting the above technical solution, the first bending part 33 and the second bending part 21 provide connection positions between the linkage 4 and the trigger 3 and the electrical connector 2, respectively. The rotational connection between the linkage 4 and the trigger 3 and the electrical connector 2 reduces the friction between the linkage 4 and the trigger 3 and the electrical connector 2 during the rotation process, making the rotation process of the linkage 4 with the base 1 with a change in the included angle smoother, which helps to improve the smoothness of the linkage 4's drive to the electrical connector 2. In addition, the setting of the first bending part 33 and the second bending part 21 reduces the assembly difficulty of the linkage 4. When assembling the linkage 4, it is only necessary to place the first end 41 at the first bending part 33 and align the two first rotating through holes 5, and then insert the first rotating insert 7 into the first rotating through hole 5 to realize the rotational connection between the linkage 4 and the trigger 3. Similarly, the same applies when rotating the linkage 4 and the electrical connector 2, effectively reducing the assembly difficulty of the linkage 4.

[0075] In a preferred embodiment, the linkage 4 is a sheet-like structure, and the first bent portion 33 and the second bent portion 21 are also convex sheet-like structures. The first end 41 of the linkage 4 is fitted with the first bent portion 33, and the second end 42 of the linkage 4 is fitted with the second bent portion 21. With this configuration, after aligning the first end 41 and the second end 42 of the linkage 4 with the first bent portion 33 and the second bent portion 21 respectively, there is no gap between the two first rotating through holes 5 and the two second rotating through holes 6. After connecting the linkage 4 to the trigger 3 and the electrical connector 2 through the first rotating insert 7 and the second rotating insert 8 respectively, the linkage 4 remains fitted with the first bent portion 33 and the second bent portion 21 during rotation, which helps to improve the rotational stability of the linkage 4.

[0076] As a preferred approach in this example, such as Figure 1 , Figure 6 As shown, the trigger 3 has a hollow region 34 on the side of the trigger part 31 away from the battery pack to accommodate the electrical connector 2, and the connection part 32 is located on both sides of the hollow region 34 adjacent to the trigger part 31; the first bending part 33 is provided on the side of the trigger part 31 near the hollow region 34.

[0077] As another preferred method in this example, such as Figure 2 , Figure 7As shown, the trigger 3 has a hollow region 34 on the side of the trigger portion 31 away from the battery pack to accommodate the electrical connector 2. The connecting portion 32 is located on the side of the hollow region 34 away from the trigger portion 31, and the first bending portion 33 is disposed on the side of the connecting portion 32 close to the hollow region 34. By adopting the above technical solution, the hollow region 34 provides a space for accommodating the electrical connector 2, allowing the electrical connector 2 to overlap with the trigger portion 31 in the vertical direction, which helps to optimize the structural design of the battery pack connection device. On the other hand, the hollow region 34 provides clearance space for the sliding connection between the electrical connector 2 and the base 1, avoiding interference between the electrical connector 2 and the trigger 3 during the horizontal sliding process, which helps to optimize the smoothness of the movement of the electrical connector 2.

[0078] When the battery pack is placed on the trigger part 31, the electrical connector 2 moves towards the direction closer to the battery pack, that is, closer to the trigger part 31, under the action of the linkage 4. The connecting part 32 is located on the side of the hollow region 34 away from the trigger part 31, that is, the side of the electrical connector 2 away from the trigger part 31, so that the connecting part 32 is outside the movement path of the electrical connector 2, avoiding interference of the connecting part 32 with the movement of the electrical connector 2.

[0079] In another preferred embodiment, such as Figures 9-11 As shown, a connecting seat 11 is provided at the position corresponding to the hollow region 34 of the base 1. The electrical connector 2 is provided with a first guide slider 22 extending in the horizontal direction. The connecting seat 11 is provided with a first guide groove 12 adapted to the first guide slider 22. The relative sliding of the electrical connector 2 and the base 1 is achieved through the sliding engagement of the first guide slider 22 and the first guide groove 12. In other embodiments, the electrical connector 2 is provided with a first guide groove 12 extending in the horizontal direction, and the connecting seat 11 is provided with a first guide slider 22 adapted to the first guide groove 12.

[0080] By adopting the above technical solution, the arrangement of the first guide slider 22 and the first guide groove 12 enables the electrical connector 2 to move only along the extension direction of the first guide groove 12, which improves the accuracy of the movement direction of the electrical connector 2 under the driving action of the linkage 4 and avoids the possibility of the electrical connector 2 moving off-center during movement. In addition, the connecting seat 11 is arranged at the hollow area 34 corresponding to the base 1, so that the sliding of the first guide slider 22 in the first guide groove 12 will not interfere with other components and the battery pack located outside the hollow area 34, thereby improving the connection stability between the electrical connector 2 and the battery pack.

[0081] Specifically, such as Figures 9-11As shown, the bottom of the base 1 has an upwardly bent protrusion, which forms a connecting seat 11. A first guide groove 12 is provided on the connecting seat 11, and a first guide slider 22 is provided on the bottom of the electrical connector 2. Preferably, there are two first guide grooves 12 and two first guide sliders 22, and the two first guide sliders 22 are arranged at intervals on the bottom of the electrical connector 2 in a direction perpendicular to the docking direction of the battery pack. Providing two first guide grooves 12 and two first guide sliders 22 can improve the placement stability of the electrical connector 2 on the base 1 and the stability of the relative sliding of the electrical connector 2 and the base 1.

[0082] like Figure 1 , Figure 2 As shown, the electrical connector 2 includes a connector body 23 and a mounting base 24. The mounting base 24 has a first end face facing the battery pack and a second end face perpendicular to the first end face and facing downward. The connector body 23 is mounted on the first end face, and the first guide slider 22 is mounted on the second end face.

[0083] This application does not limit the connection method between the connecting part 32 and the base 1, and it can adopt any of the following embodiments:

[0084] Implementation method one: such as Figure 2 , Figure 5 , Figure 11 As shown, the connecting part 32 is slidably connected to the base 1. When the battery pack is placed on the trigger part 31, the trigger part 31 drives the connecting part 32 to slide relative to the base 1 in the vertical direction.

[0085] When making electrical connections to the battery pack, when the battery pack is placed on the trigger part 31, the trigger part 31 moves under the gravity of the battery pack, and at the same time, it drives the connecting part 32 to slide relative to the base 1. The friction force experienced by the connecting part 32 when sliding relative to the base 1 is small, and it can more easily move relative to the base 1 under the action of the trigger part 31. At the same time, the relative sliding method of the connecting part 32 and the base 1 reduces the wear experienced by the connecting part 32 and the base 1 during relative movement, which helps to improve the service life of the connecting part 32 and the base 1.

[0086] As a preferred embodiment of this implementation, such as Figure 11 As shown, the connecting portion 32 is located on the side of the hollow region 34 away from the trigger portion 31. The connecting portion 32 is provided with a second guide slider 321 extending in a vertical direction, and the base 1 is provided with a second guide groove 13 adapted to the second guide slider 321. The connecting portion 32 achieves relative sliding with the base 1 through the sliding engagement of the second guide slider 321 and the second guide groove 13. In other embodiments, the connecting portion 32 is provided with a second guide groove 13 extending in a vertical direction, and the base 1 is provided with a second guide slider 321 adapted to the second guide groove 13.

[0087] The arrangement of the second guide slider 321 and the second guide groove 13 allows the connecting part 32 to move only along the extension direction of the second guide groove 13, that is, it can only slide vertically. This improves the accuracy of the connecting part 32 moving vertically under the action of the trigger part 31 and avoids the occurrence of movement deviation of the electrical connector 2 during movement.

[0088] like Figure 11 As shown, the base 1 includes a mounting plate 15 extending in a vertical direction, a second guide groove 13 is provided on the side of the mounting plate 15 facing the connecting part 32, and a second guide slider 321 is provided on the connecting part 32.

[0089] Furthermore, the connecting part 32 is provided with second guide sliders 321 at both ends in the direction perpendicular to the battery pack docking direction. Correspondingly, there are two mounting plates 15, which are arranged at intervals. The two second guide sliders 321 are respectively provided on the outer sides of both ends of the connecting part 32, and the two second guide grooves 13 are respectively provided on the opposite inner sides of the two mounting plates 15. The connecting part 32 is clamped between the two mounting plates 15 by the two second guide sliders 321 and the second guide grooves 13.

[0090] Implementation Method Two: (e.g.) Figure 1 , Figure 4 , Figure 6 As shown, the connecting part 32 is rotatably connected to the base 1. When the battery pack applies pressure to the trigger part 31, the connecting part 32 flips under the drive of the trigger part 31.

[0091] The rotatable connection between the connecting part 32 and the base 1 helps to reduce the space required for relative movement between the connecting part 32 and the base 1. When the installation space of the battery pack connection device is relatively compact, the smaller space occupied by the connecting part 32 allows the battery pack connection device to be adapted to a smaller installation environment. At the same time, since the battery pack is usually heavy, the trigger part 31 quickly drives the connecting part 32 to move relative to the base 1 under the action of the battery pack's gravity. The instantaneous impact on the connecting part 32 is relatively large. The rotatable connection between the connecting part 32 and the base 1 can reduce the relative force between the connecting part 32 and the base 1 when driven by the trigger part 31 to a certain extent, reducing the possibility of problems such as relative wear and impact damage to the connecting part 32 due to excessive instantaneous impact.

[0092] As a preferred embodiment of this implementation, such as Figure 1 , Figure 12As shown, the connecting portion 32 is located on both sides of the hollow region 34 adjacent to the trigger portion 31. The vehicle battery pack connecting device also includes two rotating members 9. One end of each rotating member 9 is fixedly connected to the connecting portion 32 on both sides of the hollow region 34, and the other end is rotatably connected to the base 1. In other embodiments, one end of each rotating member 9 is rotatably connected to the connecting portion 32 on both sides of the hollow region 34, and the other end is fixedly connected to the base 1. The rotating members 9 serve as a connection between the connecting portion 32 and the base 1, avoiding the phenomenon of restricted rotation between the connecting portion 32 and the base 1 due to factors such as the size and structural design of the connecting portion 32.

[0093] As a preferred example in this embodiment, such as Figure 1 , Figure 9 , Figure 12 As shown, the bottom of the base 1 is provided with an upwardly protruding bent plate 16. Both the bent plate 16 and the rotating part 9 are provided with a third rotating through hole 110 at the end near the base 1. The rotating part 9 and the third rotating through hole 110 of the bent plate 16 are inserted sequentially through the third rotating shaft 120 to realize the rotating connection between the rotating part 9 and the base 1.

[0094] like Figure 9 As shown, there are two bending plates 16, which are arranged at intervals at the bottom of the base 1. The connecting part 32 is rotatably connected to the base 1 through two spaced-apart rotating parts 9.

[0095] The rotating component 9 has a sheet-like structure and is attached to the bending plate 16.

[0096] This embodiment does not limit the rotational connection method between the connecting part 32 and the base 1. In another embodiment, the base 1 includes a vertically extending first vertical plate, and the connecting part 32 includes a vertically extending second vertical plate. The first vertical plate and the second vertical plate are attached to each other and are respectively provided with opposing fourth rotational through holes. The first vertical plate and the second vertical plate are rotated by inserting the fourth rotational insert shaft into the two fourth rotational through holes in sequence to realize the rotational connection between the first vertical plate and the second vertical plate, thereby realizing the rotational connection between the connecting part 32 and the base 1.

[0097] As a preferred embodiment of this application, such as Figure 1 , Figure 9 , Figure 10 As shown, the vehicle battery pack connection device also includes an elastic reset member 10, which is connected between the trigger part 31 and the base 1. When the battery pack removes the pressure applied to the trigger part 31, the trigger member 3 returns to its original position under the elastic force of the elastic reset member 10 and drives the electrical connector 2 to move horizontally away from the battery pack to disengage from the battery pack.

[0098] Once the battery pack is fully charged, it is removed from the trigger 31. The pressure applied to the trigger 31 by the battery pack is released, and the elastic reset member 10 drives the trigger 3 back to its original position based on its own elasticity. This causes the electrical connector 2 to move horizontally away from the battery pack and separate from it. This eliminates the need for manual or other methods to remove the electrical connector 2 from the battery pack during the unloading process after the battery pack charging is completed. This helps to reduce the complexity of the entire battery pack charging process and thus improve the charging efficiency of the battery pack. In addition, after the charging process of one battery pack is completed, the trigger 3 is reset under the elastic action of the elastic reset member 10. There is no need to reset the battery pack connection device before charging the next battery pack. Each battery pack is charged sequentially through the battery pack connection device, which improves the continuity of the assembly line charging process of multiple battery packs through the battery pack connection device.

[0099] As a preferred embodiment of this implementation, such as Figure 9 , Figure 10 As shown, the elastic reset member 10 is a spring, and the base 1 has a bent portion 14 provided toward the trigger portion 31 for the spring to be sleeved.

[0100] The bent portion 14 provided on the base 1 provides an installation position for the spring, allowing the spring to be stably fitted onto the bent portion 14. Under the compression of the trigger portion 31, the spring can contract and relax along the extension direction of the bent portion 14, improving the accuracy of the force direction applied by the spring to the trigger portion 31, thereby helping to improve the stability of the return process of the trigger portion 31. In addition, the bent portion 14 can also act as a stop and support for the trigger portion 31. When the electrical connector 2 is electrically connected to the battery pack, the bent portion 14 abuts against the trigger portion 31, thereby preventing the trigger portion 31 from continuing to move under the gravity of the battery pack, thus ensuring the connection stability between the electrical connector 2 and the battery pack.

[0101] Specifically, the vertical height of the bend 14 is set such that the top of the bend 14 abuts against the trigger 31 when the electrical connector 2 is electrically connected to the battery pack.

[0102] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0103] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0104] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1.A vehicle battery pack connecting device, characterized in that, it comprises a base, and an electrical connector and a trigger mounted on the base, the trigger comprises a trigger part for bearing the battery pack and a connecting part movably connected with the base, when the battery pack is placed on the trigger part, the trigger part is pressed by the battery pack to make the connecting part move relative to the base, and the electrical connector is moved horizontally and close to the battery pack to realize electrical connection with the battery pack. 2.According to claim 1, the vehicle battery pack connecting device, characterized in that, the electrical connector is slidably connected with the base, the trigger is rotatably connected with the electrical connector through a linkage, the trigger part is pressed by the battery pack to make the electrical connector slide horizontally relative to the base through the linkage. 3.According to claim 2, the vehicle battery pack connecting device, characterized in that, the first end of the linkage is movably connected with the trigger, the second end is movably connected with the electrical connector, and the linkage is obliquely arranged to form an angle with the base, the linkage can rotate with the movement of the trigger to change the angle between the linkage and the base, and then drive the electrical connector to slide relative to the base. 4.According to claim 3, the vehicle battery pack connecting device, characterized in that, the trigger is provided with a first bent part, the electrical connector is provided with a second bent part, the first end and the first bent part are provided with first rotation through holes at opposite positions, the second end and the second bent part are provided with second rotation through holes at opposite positions, first rotation insertion shafts are arranged in the two first rotation through holes to movably connect the first end with the first bent part, and second rotation insertion shafts are arranged in the two second rotation through holes to movably connect the second end with the second bent part. 5.According to claim 4, the vehicle battery pack connecting device, characterized in that, the trigger is provided with a hollow area on the side away from the battery pack to accommodate the electrical connector, the connecting part is located on the side of the hollow area away from the trigger, or the connecting part is located on both sides of the hollow area adjacent to the trigger part; the first bent part is arranged on the side of the trigger part or the connecting part close to the hollow area. 6.According to claim 5, the vehicle battery pack connecting device, characterized in that, the base is provided with a connecting seat at the position corresponding to the hollow area, one of the electrical connector and the connecting seat is provided with a first guide sliding block extending in the horizontal direction, and the other is provided with a first guide sliding groove matched with the first guide sliding block, the relative sliding of the electrical connector and the base is realized through the sliding cooperation of the first guide sliding block and the first guide sliding groove. 7.According to any one of claims 2 to 6, the vehicle battery pack connecting device, characterized in that, The connecting part is in sliding connection with the base, and when the battery pack is placed on the trigger part, the trigger part drives the connecting part to slide relative to the base in the vertical direction. 8.The battery pack connecting device for vehicle of claim 7, characterized in that, One of the connecting part and the base is provided with a second guide sliding block extending in the vertical direction, and the other is provided with a second guide sliding groove matched with the second guide sliding block, and the connecting part is in relative sliding connection with the base through the sliding cooperation of the second guide sliding block and the second guide sliding groove. 9.The battery pack connecting device for vehicle of any one of claims 2 to 6, characterized in that, The connecting part is in rotating connection with the base, and when the battery pack applies pressure to the trigger part, the connecting part is flipped under the driving of the trigger part. 10.The battery pack connecting device for vehicle of claim 9, characterized in that, Further comprising a rotating part, one end of which is fixedly connected with one of the connecting part and the base, and the other end is in rotating connection with the other of the connecting part and the base; Preferably, further comprising an elastic reset part connected between the trigger part and the base, and when the battery pack withdraws the pressure applied to the trigger part, the trigger part is reset under the elastic force of the elastic reset part and drives the electric connector to move in the horizontal direction away from the battery pack to be separated from the battery pack; Preferably, the elastic reset part is a spring, and the base has a bending part arranged towards the trigger part for the spring to be sleeved.

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