Battery pack connecting device for vehicle

Abstract

The utility model 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] The present application belongs to the technical field of battery pack charging for battery replacement, and specifically relates to a vehicle battery pack connection device. Background Art

[0002] Cars are becoming increasingly common in our daily lives. The widespread use of fuel-powered vehicles not only increases the use of non-renewable resources but also pollutes the environment through exhaust emissions. Faced with the growing imbalance between supply and demand for traditional energy and the dire situation of global warming, electric vehicles (EVs) have emerged as a new energy vehicle. Due to their advantages such as low noise, high energy efficiency, and zero mobile exhaust emissions, EVs have become a strategic emerging industry receiving significant support from various countries. As EVs enter the market, range has become a significant factor hindering their development. While traditional cars rely on refueling to extend their range, EVs are now focusing their research and development efforts on increasing their range by recharging depleted battery packs or simply removing them and replacing them with fully charged ones.

[0003] Due to the limitations of battery material technology and charging technology, new energy vehicles need at least tens of minutes to be fully charged after they are out of power. For some new energy freight trucks with larger battery pack capacity, they need to wait longer for charging, which greatly affects the user's driving experience. Especially for some commercial vehicle owners, waiting for charging means reducing their working time. The time required to replace the battery pack is greatly reduced compared to the charging time of the battery pack. Therefore, the charging method of directly replacing the battery pack has become the first choice of more and more car owners, especially commercial vehicle owners.

[0004] The disassembled low-charge battery pack is first transported to the charging position, and then the battery pack is charged after being electrically connected to the battery pack through the connectors set at each charging position. The connector is provided with a pole assembly that mates with the battery pack connection port. In specific operations, the battery pack needs to be placed on the connector first. Under the action of gravity, relative movement occurs between the connector and the battery pack, and the pole assembly is driven to connect with the battery pack connection port to realize charging of the battery pack; however, the pole assembly in the existing connector has a certain inclination angle with the horizontal plane in the free state. During the battery descent, the pole assembly undergoes a composite movement including horizontal movement, vertical movement and rotation with the connector to gradually move toward the battery pack. However, the rotation of the pole assembly will cause a registration angle between the pole assembly and the battery pack, which is easy to cause friction with the battery pack connection port, or even get stuck, affecting the electrical connection between the gravity connector and the battery pack. Utility Model Content

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

[0006] The technical solutions adopted in this application are:

[0007] A vehicle battery pack connection device includes a base, an electrical connector and a trigger member mounted on the base. The trigger member includes a trigger portion for supporting the battery pack and a connection 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 connection portion to move relative to the base, thereby 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-mentioned technical solution, when using the vehicle battery pack connection device of the present 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 gravity of the battery pack and drives the connecting part connected to it to move relative to the base. During the relative movement of the connecting part with the base, the electrical connector is driven to move in a horizontal direction to approach the battery pack until the electrical connector is inserted into the battery pack and realizes electrical connection with the battery pack. During this process, it is only necessary to place the battery pack on the trigger part, use the gravity of the battery pack as the power source, and drive the electrical connector to move toward the battery pack through the trigger part and the connecting part. With this arrangement, on the one hand, there is no need to set up a driving mechanism for driving the battery pack to move toward the electrical connector, which simplifies the structural design of the battery pack connecting device while reducing the production cost of the battery pack connecting device, and realizes the automation of the electrical connection between the electrical connector and the battery pack, greatly reducing the links requiring manual operation; on the other hand, in the process of the battery pack being placed on the trigger part until it is electrically connected with the electrical connector, the movement direction of the electrical connector is in the horizontal direction, so the movement direction of the pole assembly in the electrical connector is also in the horizontal direction. During the movement of the electric connector, there will be no angular deviation between the pole assembly and the battery pack. The pole assembly moves laterally with the movement of the electric connector and cooperates with the connecting port of the battery pack to realize the electrical connection between the electric connector and the battery pack, avoiding the occurrence of friction or jamming between the pole assembly and the connecting port of the battery pack due to rotation during the connection between the electric connector and the battery pack, avoiding wear on the electric connector and the battery pack, and improving the connection stability between the electric connector and the battery pack. Furthermore, after the battery pack is placed on the trigger part, no relative displacement in the horizontal direction will occur between the battery pack and the trigger part, which greatly improves the placement stability of the battery pack on the trigger part. 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 part 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 member is rotationally connected to the electrical connector via a linkage. The trigger portion 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 the battery pack is electrically connected, after the battery pack is placed on the trigger part, the trigger part will be displaced under the pressure of the battery pack, and drive the connecting part to synchronously move relative to the base. During the synchronous movement of the trigger part and the linkage part, the linkage part will also drive the electrical connector to move toward the battery pack. That is, by providing the linkage part, a transmission channel for driving force is provided between the trigger part and the electrical connector. While the trigger part and the connecting part move synchronously, the linkage part drives the displacement of the electrical connector toward the battery pack until electrical connection with the battery pack is achieved. In addition, the electrical connector is slidably connected to the base. , which can reduce the friction between the electrical connector and the base, thereby reducing the driving force required when the linkage drives the electrical connector to move, and improving the smoothness of the movement of the electrical connector; furthermore, the electrical connector slides in the horizontal direction, so that the direction of the deadweight of the electrical connector applied to the base is vertically downward, and there is no component force in other directions. The electrical connector will not slide relative to the base under the action of its own weight, which helps to improve the placement stability of the electrical connector on the base. At the same time, the driving force for the horizontal displacement of the electrical connector comes only from the linkage, which helps to improve the real-time performance and driving stability of the trigger member driving the electrical connector to move through the linkage.

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

[0012] By adopting the above technical solution, when the battery pack is electrically connected, the battery pack applies gravity to the trigger part, and the connecting member rotates under the driving action of the trigger member. The horizontal distance between the first end and the second end of the connecting member is bound to change during the rotation, thereby causing the horizontal distance between the electrical connector movably connected to the first end and the second end and the trigger member to change, thereby achieving the displacement of the electrical connector in the horizontal direction; at the same time, when the trigger member drives the electrical connector to move in the horizontal direction through the connecting member, since the displacement of the electrical connector in the horizontal direction is at least partially provided by the expansion and contraction in the horizontal direction during the rotation of the connecting member, the demand for the horizontal displacement of the trigger member under unit displacement of the electrical connector is reduced, which helps to reduce the horizontal displacement or deformation space requirement of the trigger member under the pressure of the battery pack, thereby reducing the horizontal space occupation requirement of the battery pack connection device, and helping to miniaturize the battery pack connection device.

[0013] Preferably, the trigger member is provided with a first bending portion, the electrical connector is provided with a second bending portion, the first end and the first bending portion are both provided with first rotating through holes in relative positions, the second end and the second bending portion are both provided with second rotating through holes in relative positions, a first rotating plug shaft is passed through the two first rotating through holes to enable the first end to be movably connected to the first bending portion, and a second rotating plug shaft is passed through the two second rotating through holes to enable the second end to be movably connected to the second bending portion.

[0014] By adopting the above technical solution, the first bending portion and the second bending portion provide connection positions between the linkage and the trigger member and the electrical connector respectively, and the way in which the linkage is rotatably connected to the trigger member and the electrical connector respectively reduces the friction between the linkage and the trigger member and the electrical connector during rotation, making the rotation process of the linkage in which the angle between the linkage and the base changes smoother, which helps to improve the driving smoothness of the electrical connector of the linkage; in addition, the provision of the first bending portion and the second bending portion reduces the assembly difficulty of the linkage. When assembling the linkage, it is only necessary to place the first end at the first bending portion and position the two first rotating through holes relative to each other, and then insert the first rotating shaft into the first rotating through hole to realize the rotational connection between the linkage and the trigger member. Similarly, the same is true when the linkage is rotatably connected to the electrical connector, which effectively reduces the assembly difficulty of the linkage.

[0015] Preferably, the trigger member is provided with 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 provided on the trigger portion or the connecting portion on the side close to the hollow area.

[0016] By adopting the above technical solution, the setting of the hollow area provides an accommodation space for the electrical connector on the one hand, so that the electrical connector and the trigger part overlap in the vertical direction, which helps to optimize the structural design of the battery pack connection device; on the other hand, the setting of the hollow area provides an avoidance space for the sliding connection between the electrical connector and the base, avoiding mutual interference between the electrical connector and the trigger part during the horizontal sliding process, which helps to optimize the smoothness of the movement of the electrical connector.

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

[0018] By adopting the above technical solution, the setting of the first guide slider and the first guide slot enables the electrical connector to move only along the extension direction of the first guide slot, thereby improving the accuracy of the moving direction of the electrical connector under the driving action of the connecting member and avoiding the possibility of movement displacement of the electrical connector during movement; in addition, the connecting seat is arranged at the hollow area corresponding to the base, so that the first guide slider will not interfere with other components and battery packs outside the hollow area during the sliding process in the first guide slot, thereby improving the connection stability between the electrical connector and the battery pack.

[0019] Preferably, the connecting portion is slidably connected to the base, and when the battery pack is placed on the triggering portion, the triggering portion drives the connecting portion to slide relative to the base in a 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 part, the trigger part moves under the action of the gravity of the battery pack and drives the connecting part to slide relative to the base. The friction force encountered when the connecting part and the base slide relative to each other is small, and the connecting part can more easily move relative to the base under the driving action of the trigger part. At the same time, the relative sliding manner of the connecting part and the base reduces the wear suffered by the connecting part and the base during the relative movement, which helps to increase 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 the vertical direction, and the other one is provided with a second guide groove adapted to the second guide slider, and the connecting part realizes relative sliding with the base through the sliding cooperation between the second guide slider and the second guide groove.

[0022] By adopting the above technical solution, the setting of the second guide slider and the second guide groove enables the connecting part to move only along the extension direction of the second guide groove, that is, it can only slide vertically, thereby improving the accuracy of the connecting part moving in the vertical direction under the driving action of the trigger part, and avoiding the occurrence of movement deviation of the electrical connector during movement.

[0023] Preferably, the connecting portion is rotatably connected to the base, and when the battery pack applies pressure to the trigger portion, the connecting portion is turned over by the trigger portion.

[0024] By adopting the above technical solution, the connecting part is rotatably connected to the base, which helps to reduce the movement space required for the relative movement of the connecting part and the base. When the installation space of the battery pack connecting device is relatively compact, the smaller movement space occupied by the connecting part can make the battery pack connecting device adaptable to a smaller installation environment; at the same time, since the battery pack is usually heavy, the trigger part quickly drives the connecting part to move relative to the base under the action of the gravity of the battery pack, and 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 driven by the trigger part to a certain extent, and reduce the possibility of problems such as relative wear and impact damage to the connecting part due to excessive instantaneous impact.

[0025] Preferably, a rotating member is further included, one end of the rotating member is fixedly connected to one of the connecting portion and the base, and the other end is rotatably connected to the other one of the connecting portion and the base.

[0026] By adopting the above technical solution, the rotating member plays a connecting role between the connecting part and the base, avoiding the occurrence of rotation restriction with the base due to factors such as the size and structural design of the connecting part.

[0027] Preferably, it also includes an elastic return member connected between the trigger part and the base. When the battery pack removes the pressure applied to the trigger part, the trigger member returns to its position under the elastic force of the elastic return member and drives the electrical connector to move horizontally away from the battery pack to detach from the battery pack.

[0028] By adopting the above technical solution, when the battery pack is fully charged, the battery pack is removed from the trigger part, the pressure applied by the battery pack on the trigger part is removed, and the elastic reset part relies on its own elasticity to drive the trigger part back to its position, and drives the electrical connector horizontally away from the battery pack and separates from the battery pack, eliminating 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 work is completed, which helps to reduce the complexity of the entire battery pack charging process, thereby improving the charging efficiency of the battery pack; in addition, after the charging process of one battery pack is completed, the trigger part is reset under the elastic action of the elastic reset part, and there is no need to reset the battery pack connection device before charging the next battery pack. Each battery pack is charged through the battery pack connection device in turn, 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 member is a spring, and the base has a bent portion arranged toward the trigger portion for the spring to be sleeved.

[0030] By adopting the above technical solution, the bent portion arranged on the base provides an installation position for the spring, so that the spring is stably mounted on the bent portion, and can contract and relax along the extension direction of the bent portion under the squeezing action of the trigger portion, thereby improving the accuracy of the force direction of the spring on the trigger portion, thereby helping to improve the stability of the return process of the trigger portion; in addition, the bent portion can also play a stopping and supporting role for the trigger portion. When the electrical connector is electrically connected to the battery pack, the bent portion abuts against the trigger portion to prevent the trigger portion from continuing to move under the action of the gravity of the battery pack, thereby providing a guarantee for 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 the present 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 gravity of the battery pack and drives the connecting part connected to it to move relative to the base. During the relative movement of the connecting part with the base, the electrical connector is driven to move in a horizontal direction to approach the battery pack until the electrical connector is inserted into the battery pack and realizes electrical connection with the battery pack. During this process, it is only necessary to place the battery pack on the trigger part, use the gravity of the battery pack as the power source, and drive the electrical connector to move toward the battery pack through the trigger part and the connecting part. With this arrangement, on the one hand, there is no need to set up a driving mechanism for driving the battery pack to move toward the electrical connector, which simplifies the structural design of the battery pack connecting device while reducing the production cost of the battery pack connecting device, and realizes the automation of the electrical connection between the electrical connector and the battery pack, greatly reducing the links requiring manual operation; on the other hand, in the process of the battery pack being placed on the trigger part until it is electrically connected with the electrical connector, the movement direction of the electrical connector is in the horizontal direction, so the movement direction of the pole assembly in the electrical connector is also in the horizontal direction. During the movement of the electric connector, there will be no angular deviation between the pole assembly and the battery pack. The pole assembly is laterally inserted into the connecting port of the battery pack as the electric connector moves to realize the electrical connection between the electric connector and the battery pack, avoiding the occurrence of friction or jamming between the pole assembly and the connecting port of the battery pack due to rotation during the connection between the electric connector and the battery pack, avoiding wear on the electric connector and the battery pack, and improving the connection stability between the electric connector and the battery pack. Furthermore, after the battery pack is placed on the trigger part, no relative displacement in the horizontal direction will occur between the battery pack and the trigger part, which greatly improves the placement stability of the battery pack on the trigger part. 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 part 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

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

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

[0036] Figure 3This is a schematic structural diagram of the lower linking member in the first or second embodiment of the present application;

[0037] Figure 4 This is a structural diagram of the base and trigger part of the first embodiment of the present application;

[0038] Figure 5 This is a structural diagram of the lower base and the trigger member according to the second embodiment of the present application;

[0039] Figure 6 This is a schematic structural diagram of a trigger member in the first embodiment of the present application;

[0040] Figure 7 This is a schematic structural diagram of a trigger member in the second embodiment of the present application;

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

[0042] Figure 9 This is a structural diagram of the get-off base according to the first embodiment of the present application;

[0043] Figure 10 This is a structural diagram of the lower base according to the second embodiment of the present application;

[0044] Figure 11 This is a schematic diagram of the structure of the electrical connector and the trigger member in the second embodiment of this application. Figure 3 ;

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

[0046] in:

[0047] 1 base, 11 connecting seat, 12 first guide slot, 13 second guide slot, 14 bending portion, 15 mounting plate, 16 bending plate;

[0048] 2 electrical connector, 21 second bending portion, 22 first guide slider, 23 connector body, 24 mounting seat;

[0049] 3 trigger member, 31 trigger portion, 32 connecting portion, 321 second guide slider, 33 first bending portion, 34 hollow area;

[0050] 4 connecting member, 41 first end, 42 second end;

[0051] 5. First rotating through hole;

[0052] 6. Second rotating through hole;

[0053] 7 first rotating plug shaft;

[0054] 8 second rotating shaft;

[0055] 9 rotating parts;

[0056] 10 elastic reset member;

[0057] 110 third rotating through hole;

[0058] 120 The third rotating shaft. DETAILED DESCRIPTION

[0059] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0060] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.

[0061] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0062] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0063] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any 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 member 3 installed on the base 1. The trigger member 3 includes a trigger portion 31 for supporting the battery pack and a connecting portion 32 movably connected to the base 1. When the battery pack is placed on the trigger portion 31, the trigger portion 31 is subjected to the pressure of the battery pack, causing the connecting portion 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 the vehicle battery pack connection device of the present application is used to electrically connect the battery pack, the battery pack is first placed on the trigger part 31. The trigger part 31 moves under the action of the gravity of the battery pack and drives the connecting part 32 connected to it to move relative to the base 1. During the relative movement with the base 1, the connecting part 32 drives the electrical connector 2 to move in the horizontal direction to approach the battery pack until the electrical connector 2 is inserted into the battery pack and achieves electrical connection with the battery pack. In this process, it is only necessary to place the battery pack on the trigger part 31, use the gravity of the battery pack as the power source, and drive the electrical connector 2 toward the direction of the battery pack through the trigger part 31 and the connecting part 32. With this arrangement, on the one hand, there is no need to set up a driving mechanism for driving the battery pack to move toward the electrical connector 2, which simplifies the structural design of the battery pack connection device while reducing the production cost of the battery pack connection device, and realizes the automation of the electrical connection between the electrical connector 2 and the battery pack, greatly reducing the links that require manual operation; on the other hand, from the time the battery pack is placed on the trigger part 31 to the time it is electrically connected to the electrical connector 2, During the movement of the electrical connector 2, the movement direction is along the horizontal direction, so the movement direction of the pole assembly in the electrical connector 2 is also along the horizontal direction. There will be no angular deviation between the pole assembly and the battery pack during the movement of the electrical connector 2. The pole assembly is laterally inserted into the connection port of the battery pack as the electrical connector 2 moves to realize the electrical connection between the electrical connector 2 and the battery pack, avoiding the friction or jamming of the pole assembly with the connection port of the battery pack due to rotation during the connection between the electrical connector 2 and the battery pack, 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, no relative displacement in the horizontal direction will occur 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 it is electrically connected to the battery pack. That is, compared with the electrical connection method of driving the battery pack to move toward the direction close to the electrical connector 2, the battery pack connection device of the present application does not have the connection dislocation phenomenon caused by the movement deviation of the battery pack during the electrical connection process of the battery pack, 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 , and the connector body 23 includes a connecting head. When the electrical connector 2 is in a connected state, the connecting head docks with and communicates with the battery pack, and the connecting head extends horizontally toward the trigger portion 31 .

[0067] As a preferred embodiment of the present application, the electrical connector 2 is slidingly connected to the base 1, the trigger member 3 is rotationally connected to the electrical connector 2 through the connecting member 4, and the trigger part 31 is subjected to the pressure of the battery pack, driving the electrical connector 2 to slide horizontally relative to the base 1 through the connecting member 4.

[0068] When making an electrical connection to the battery pack, after placing the battery pack on the trigger portion 31, the trigger portion 31 will be displaced under the pressure of the battery pack, and drive the connecting portion 32 to synchronously move relative to the base 1. During the synchronous movement of the trigger portion 31 and the linkage portion, the linkage 4 will also drive the electrical connector 2 to move toward the battery pack. That is, by providing the linkage 4, a transmission channel for the driving force is provided between the trigger portion 3 and the electrical connector 2. While the trigger portion 31 and the connecting portion 32 are moving synchronously, the linkage 4 drives the displacement of the electrical connector 2 toward the battery pack until electrical connection with the battery pack is achieved. In addition, the electrical connector 2 is slidably connected to the base 1, which can The friction between the electrical connector 2 and the base 1 is reduced, thereby reducing the driving force required for the linkage 4 to drive the electrical connector 2 to move, thereby improving the smoothness of the movement of the electrical connector 2; furthermore, the electrical connector 2 slides in the horizontal direction, so that the direction of the deadweight of the electrical connector 2 applied to the base 1 is vertically downward, and there is no component force in other directions. The electrical connector 2 will not slide relative to the base 1 under the action of its own weight, which helps to improve the placement 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 comes only from the linkage 4, which helps to improve the real-time performance and driving stability of the trigger 3 driving the electrical connector 2 to move through the linkage 4.

[0069] The present 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, a rolling wheel is provided at the bottom of the electrical connector 2, and a rolling groove extending in the horizontal direction is provided on the base 1. The rolling of the rolling wheel in the rolling groove drives the relative movement of the electrical connector 2 and the base 1.

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

[0071] When the battery pack is electrically connected, the battery pack applies gravity to the trigger portion 31, and the linkage 4 rotates under the driving 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 is bound to change, thereby causing the horizontal distance between the electrical connector 2 and the trigger 3, which are movably connected to the first end 41 and the second end 42, to change, thereby achieving the horizontal displacement of the electrical connector 2; at the same time, when the trigger 3 drives the electrical connector 2 to move horizontally through the linkage 4, since the horizontal displacement of the electrical connector 2 is at least partially provided by the horizontal expansion and contraction during the rotation of the linkage 4, the demand for the horizontal displacement of the trigger 3 per unit displacement of the electrical connector 2 is reduced, which helps to reduce the horizontal displacement or deformation space requirement of the trigger 3 under the pressure of the battery pack, thereby reducing the horizontal space occupation requirement of the battery pack connection device, and helping to miniaturize the battery pack connection device.

[0072] This embodiment does not limit the movement mode of the connecting member 4 driving the electrical connector 2. In one example, the connecting member 4 is located on the front side of the movement direction when the electrical connector 2 approaches the battery pack. In this example, the angle between the connecting member 4 and the base 1 gradually decreases. At this time, the horizontal distance between the first end 41 and the second end 42 gradually decreases, thereby pulling the electrical connector 2 toward the direction approaching the battery pack; in another example, the connecting member 4 is located on the rear side of the movement direction when the electrical connector 2 approaches the battery pack. In this example, the angle between the connecting member 4 and the base 1 gradually increases. At this time, the horizontal distance between the first end 41 and the second end 42 gradually increases, thereby pushing the electrical connector 2 toward the direction approaching the battery pack.

[0073] As a preferred example under this embodiment, Figure 3 、 Figure 6-Figure 8 As shown, the trigger member 3 is provided with a first bending portion 33, the electrical connector 2 is provided with a second bending portion 21, the first end 41 and the first bending portion 33 are both provided with first rotating through holes 5 in relative positions, the second end 42 and the second bending portion 21 are both provided with second rotating through holes 6 in relative positions, a first rotating plug shaft 7 is passed through the two first rotating through holes 5 so that the first end 41 is movably connected to the first bending portion 33, and a second rotating plug shaft 8 is passed through the two second rotating through holes 6 so that the second end 42 is movably connected to the second bending portion 21.

[0074] By adopting the above technical solution, the first bent portion 33 and the second bent portion 21 provide connection positions between the linking member 4 and the trigger member 3 and the electrical connector 2 respectively, and the way in which the linking member 4 is rotatably connected to the trigger member 3 and the electrical connector 2 respectively reduces the friction between the linking member 4 and the trigger member 3 and the electrical connector 2 during the rotation process, making the rotation process of the linking member 4 changing the angle with the base 1 smoother, which helps to improve the driving smoothness of the electrical connector 2 by the linking member 4; in addition, the provision of the first bent portion 33 and the second bent portion 21 reduces the assembly difficulty of the linking member 4. When assembling the linking member 4, it is only necessary to place the first end 41 at the first bent portion 33 and align the two first rotating through holes 5, and then insert the first rotating plug shaft 7 into the first rotating through hole 5 to realize the rotational connection between the linking member 4 and the trigger member 3. Similarly, the same is true when the linking member 4 is rotatably connected to the electrical connector 2, which effectively reduces the assembly difficulty of the linking member 4.

[0075] In a preferred embodiment, the linkage 4 is a sheet-like structure, and the first bend portion 33 and the second bend portion 21 also have outwardly convex sheet-like structures. The first end 41 of the linkage 4 is in contact with the first bend portion 33, and the second end 42 of the linkage 4 is in contact with the second bend portion 21. With this arrangement, after the first end 41 and the second end 42 of the linkage 4 are aligned with the first bend portion 33 and the second bend portion 21, respectively, there is no gap between the two first rotation holes 5 and the two second rotation holes 6. After the linkage 4 is connected to the trigger 3 and the electrical connector 2, respectively, via the first rotation plug shaft 7 and the second rotation plug shaft 8, the linkage 4 always remains in contact with the first bend portion 33 and the second bend portion 21 during rotation, which helps to improve the rotational stability of the linkage 4.

[0076] As a preferred method in this example, Figure 1 、 Figure 6 As shown, the trigger member 3 is provided with a hollow area 34 on the side of the trigger portion 31 away from the battery pack to accommodate the electrical connector 2, and the connecting portion 32 is located on both sides adjacent to the hollow area 34 and the trigger portion 31; the first bending portion 33 is provided on the side of the trigger portion 31 close to the hollow area 34.

[0077] As another preferred method in this example, Figure 2 、 Figure 7As shown, trigger member 3 has a hollow area 34 on the side of trigger portion 31 away from the battery pack to accommodate electrical connector 2. Connecting portion 32 is located on the side of hollow area 34 away from trigger portion 31, and first bent portion 33 is provided on the side of connecting portion 32 closer to hollow area 34. By adopting the above technical solution, the provision of hollow area 34 not only provides space for accommodating electrical connector 2, but also allows for vertical overlap between electrical connector 2 and trigger portion 31, thereby optimizing the structural design of the battery pack connection device. Furthermore, the provision of hollow area 34 provides clearance for the sliding connection between electrical connector 2 and base 1, preventing interference between electrical connector 2 and trigger member 3 during horizontal sliding, thereby optimizing the smooth movement of electrical connector 2.

[0078] When the battery pack is placed on the trigger portion 31, the electrical connector 2 moves toward the battery pack, that is, toward the trigger portion 31, under the driving action of the linkage 4, and the connecting portion 32 is arranged on the side of the hollow area 34 away from the trigger portion 31, that is, the side of the electrical connector 2 away from the trigger portion 31, so that the connecting portion 32 is located outside the moving path of the electrical connector 2, thereby preventing the connecting portion 32 from interfering with the movement of the electrical connector 2.

[0079] In another preferred embodiment, Figures 9-11 As shown, the base 1 is provided with a connecting seat 11 at a position corresponding to the hollow area 34, the electrical connector 2 is provided with a first guide slider 22 extending in the horizontal direction, and the connecting seat 11 is provided with a first guide slot 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 cooperation between the first guide slider 22 and the first guide slot 12. In other embodiments, the electrical connector 2 is provided with a first guide slot 12 extending in the horizontal direction, and the connecting seat 11 is provided with a first guide slider 22 adapted to the first guide slot 12.

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

[0081] Specifically, if Figures 9-11As shown, the bottom of the base 1 has an upwardly curved protrusion, which forms the connecting seat 11. A first guide slot 12 is provided in the connecting seat 11, and a first guide slider 22 is provided at the bottom of the electrical connector 2. Preferably, there are two first guide slots 12 and two first guide sliders 22, each spaced apart at the bottom of the electrical connector 2 in a direction perpendicular to the battery pack docking direction. The provision of two first guide slots 12 and two first guide sliders 22 improves the placement stability of the electrical connector 2 on the base 1 and the relative sliding stability 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 installed on the first end face, and the first guide slider 22 is installed on the second end face.

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

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

[0085] When the battery pack is electrically connected, when the battery pack is placed on the trigger part 31, the trigger part 31 moves under the action of the gravity of the battery pack and drives the connecting part 32 to slide relative to the base 1. The friction force encountered by the connecting part 32 when sliding relative to the base 1 is small, and the connecting part 32 can more easily move relative to the base 1 under the driving action of the trigger part 31. At the same time, the relative sliding between the connecting part 32 and the base 1 reduces the wear suffered by the connecting part 32 and the base 1 during the 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 embodiment, Figure 11 As shown, the connecting portion 32 is located on a 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 the vertical direction. The base 1 is correspondingly provided with a second guide slot 13 adapted to the second guide slider 321. The connecting portion 32 slides relative to the base 1 through the sliding engagement between the second guide slider 321 and the second guide slot 13. In other embodiments, the connecting portion 32 is provided with a second guide slot 13 extending in the vertical direction, and the base 1 is correspondingly provided with a second guide slider 321 adapted to the second guide slot 13.

[0087] The arrangement of the second guide slider 321 and the second guide slot 13 enables the connecting portion 32 to move only along the extension direction of the second guide slot 13, that is, to slide only vertically, thereby improving the accuracy of the vertical movement of the connecting portion 32 under the driving action of the trigger portion 31, and avoiding 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, the second guide slot 13 is provided on a side of the mounting plate 15 facing the connecting portion 32 , and the second guide slider 321 is provided on the connecting portion 32 .

[0089] Furthermore, the connecting portion 32 is provided with a second guide slider 321 at both ends in a direction perpendicular to the docking direction of the battery pack. Accordingly, there are two mounting plates 15, and the two mounting plates 15 are arranged at intervals. The two second guide sliders 321 are respectively arranged on the outer sides of the two ends of the connecting portion 32, and the two second guide grooves 13 are respectively arranged on the opposite inner sides of the two mounting plates 15. The connecting portion 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 2: Figure 1 、 Figure 4 、 Figure 6 As shown, the connecting portion 32 is rotatably connected to the base 1 . When the battery pack applies pressure to the triggering portion 31 , the connecting portion 32 is turned over by the triggering portion 31 .

[0091] The connection portion 32 is rotatably connected to the base 1, which helps to reduce the movement space required for the connection portion 32 to move relative to the base 1. When the installation space of the battery pack connection device is relatively compact, the smaller movement space occupied by the connection portion 32 can make the battery pack connection device adaptable to a smaller installation environment; at the same time, since the battery pack is usually heavy, the trigger portion 31 quickly drives the connection portion 32 to move relative to the base 1 under the action of the gravity of the battery pack, and the instantaneous impact on the connection portion 32 is relatively large. The rotational connection between the connection portion 32 and the base 1 can reduce the relative force between the connection portion 32 and the base 1 when driven by the trigger portion 31 to a certain extent, and reduce the possibility of problems such as relative wear and impact damage to the connection portion 32 due to excessive instantaneous impact.

[0092] As a preferred embodiment of this embodiment, Figure 1 、 Figure 12As shown, the connection portion 32 is located on either side of the hollow region 34 adjacent to the trigger portion 31. The vehicle battery pack connection device also includes two rotating members 9, each of which has one end fixedly connected to the connection portion 32 on either side of the hollow region 34 and the other end rotatably connected to the base 1. In other embodiments, the two rotating members 9 each have one end rotatably connected to the connection portion 32 on either side of the hollow region 34 and the other end fixedly connected to the base 1. The rotating members 9 serve as a connection between the connection portion 32 and the base 1, preventing the connection portion 32 from being restricted in rotation relative to the base 1 due to factors such as its size and structural design.

[0093] As a preferred example under this embodiment, Figure 1 、 Figure 9 、 Figure 12 As shown, a convex bending plate 16 is provided at the bottom of the base 1, and a third rotating through hole 110 is provided at the bending plate 16 and the end of the rotating part 9 close to the base 1. The third rotating plug shaft 120 is inserted into the rotating part 9 and the third rotating through hole 110 of the bending plate 16 in sequence 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 spaced apart at the bottom of the base 1 , and the connecting portion 32 is rotatably connected to the base 1 via two spaced apart rotating members 9 .

[0095] The rotating member 9 is a sheet-like structure, and the rotating member 9 fits in contact with the bending plate 16 .

[0096] This embodiment does not limit the rotational connection method between the connecting portion 32 and the base 1. In another embodiment, the base 1 includes a first vertical plate extending vertically, and the connecting portion 32 includes a second vertical plate extending vertically. The first vertical plate and the second vertical plate are attached to each other and are respectively provided with fourth rotation through holes in relative positions. The fourth rotation plug shaft is inserted into the two fourth rotation 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 portion 32 and the base 1.

[0097] As a preferred embodiment of the present application, Figure 1 、 Figure 9 、 Figure 10 As shown, the vehicle battery pack connection device also includes an elastic return 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 return member 10 and drives the electrical connector 2 to move horizontally away from the battery pack to detach from the battery pack.

[0098] When the battery pack is fully charged, the battery pack is removed from the trigger part 31, and the pressure applied by the battery pack on the trigger part 31 is removed. The elastic reset member 10 relies on its own elasticity to drive the trigger member 3 back to its position, and drives the electrical connector 2 to move away from the battery pack in the horizontal direction and separate from the battery pack, eliminating the need to manually or other means to remove the electrical connector 2 from the battery pack during the unloading process after the battery pack charging work is completed, which 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 member 3 is reset under the elastic action of the elastic reset member 10, and there is no need to reset the battery pack connection device before charging the next battery pack. Each battery pack is charged through the battery pack connection device in turn, 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 embodiment, Figure 9 、 Figure 10 As shown, the elastic reset member 10 is a spring, and the base 1 has a bent portion 14 arranged toward the trigger portion 31 for the spring to be sleeved.

[0100] On the one hand, the bent portion 14 provided on the base 1 provides an installation position for the spring, so that the spring is stably mounted on the bent portion 14, and can contract and relax along the extension direction of the bent portion 14 under the squeezing action of the trigger portion 31, thereby improving the accuracy of the force direction of the spring on 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 serve 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 to prevent the trigger portion 31 from continuing to move under the action of the gravity of the battery pack, providing a guarantee for the connection stability between the electrical connector 2 and the battery pack.

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

[0102] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

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

[0104] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A vehicle battery pack connection device, characterized in that: It includes a base, an electrical connector and a trigger member installed on the base. The trigger member includes a trigger part for carrying a battery pack and a connecting part movably connected to the base. When the battery pack is placed on the trigger part, the trigger part is subjected to the pressure of the battery pack, causing the connecting part 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.

2. The vehicle battery pack connection device according to claim 1, characterized in that: The electrical connector is slidably connected to the base, and the trigger member is rotationally connected to the electrical connector via a linkage. The trigger portion is subjected to pressure from the battery pack and drives the electrical connector to slide horizontally relative to the base via the linkage.

3. The vehicle battery pack connection device according to claim 2, characterized in that: The first end of the linkage is movably connected to the trigger member, 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 member so that the angle between the linkage and the base changes, thereby driving the electrical connector to slide relative to the base.

4. The vehicle battery pack connection device according to claim 3, characterized in that: The trigger member is provided with a first bending portion, the electrical connector is provided with a second bending portion, the first end and the first bending portion are both provided with first rotating through holes in relative positions, the second end and the second bending portion are both provided with second rotating through holes in relative positions, a first rotating plug shaft is passed through the two first rotating through holes to enable the first end to be movably connected to the first bending portion, and a second rotating plug shaft is passed through the two second rotating through holes to enable the second end to be movably connected to the second bending portion.

5. The vehicle battery pack connection device according to claim 4, characterized in that: The trigger member is provided with 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 provided on the trigger portion or the connecting portion on the side close to the hollow area.

6. The vehicle battery pack connection device according to claim 5, characterized in that: A connecting seat is provided at a position of the base corresponding to the hollow area. One of the electrical connector and the connecting seat is provided with a first guide slider extending in a 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 achieved through the sliding cooperation between the first guide slider and the first guide groove.

7. The vehicle battery pack connection device according to any one of claims 2 to 6, characterized in that: The connecting portion is slidably connected to the base. When the battery pack is placed on the triggering portion, the triggering portion drives the connecting portion to slide relative to the base along a vertical direction.

8. The vehicle battery pack connection device according to claim 7, characterized in that: One of the connecting part and the base is provided with a second guide slider extending in the vertical direction, and the other one is provided with a second guide slot adapted to the second guide slider. The connecting part realizes relative sliding with the base through the sliding cooperation between the second guide slider and the second guide slot.

9. The vehicle battery pack connection device according to any one of claims 2 to 6, characterized in that: The connecting portion is rotatably connected to the base. When the battery pack applies pressure to the trigger portion, the connecting portion is turned over by the trigger portion.

10. The vehicle battery pack connection device according to claim 9, characterized in that: It also includes a rotating member, one end of which is fixedly connected to one of the connecting portion and the base, and the other end of which is rotatably connected to the other one of the connecting portion and the base.

11. The vehicle battery pack connection device according to claim 10, characterized in that: It also includes an elastic return member connected between the trigger part and the base. When the battery pack removes the pressure applied to the trigger part, the trigger member returns to its original position under the elastic force of the elastic return member and drives the electrical connector to move horizontally away from the battery pack to detach from the battery pack.

12. The vehicle battery pack connection device according to claim 11, characterized in that: The elastic reset member is a spring, and the base has a bent portion arranged toward the trigger portion for the spring to be sleeved.

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