Quick-plug connecting device, battery rack and electric automobile

Abstract

The invention discloses a quick-plug connecting device, a battery rack and an electric automobile, the quick-plug connecting device is used for being connected with a battery end electric connector and a battery end liquid cooling connector on a battery pack, and the quick-plug connecting device comprises a fixed plate, an electric connector, a liquid cooling connector, a first floating mechanism and a second floating mechanism, the first floating mechanism and the second floating mechanism are arranged at intervals and connected to the fixing plate, the electric connector is connected to the first floating mechanism and inserted into the battery end electric connector, and the liquid cooling connector is connected to the second floating mechanism and inserted into the battery end liquid cooling connector. Even if a certain deviation exists, the butt joint can be realized, so that the success rate of plugging between the quick-plug connecting device and the battery pack is improved; the position error between the electric connector and the liquid cooling connector is eliminated under the condition that the electric connector and the liquid cooling connector are plugged at the same time, the stability of the quick-plug connecting device is greatly improved, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to a quick-insert connection device, a battery rack, and an electric vehicle. Background Art

[0002] The installation methods of the battery packs of existing electric vehicles are generally divided into fixed type and replaceable type. The fixed battery packs are generally fixed on the electric vehicle, and the electric vehicle is directly used as the charging object during charging. For the replaceable battery packs, they are generally fixed on the electric vehicle by an active installation method, and the electric vehicle can go to a battery swapping station to replace the battery packs. Generally speaking, when the battery pack on the electric vehicle has insufficient power, the discharged battery pack can be removed through the battery swapping equipment in the battery swapping station and replaced with a new fully charged battery pack. Among them, the removed discharged battery pack will be transported to the charging bin in the battery swapping station for charging and storage.

[0003] In order to charge the battery pack in the charging bin, an electrical connector is installed and set, and the electrical connector is inserted into the battery terminal electrical connector on the battery pack to achieve charging of the battery pack; in order to cool the battery pack during charging, a liquid cooling connector is installed in the charging bin, and the joint of the liquid cooling connector is inserted into the cooling pipe in the battery pack, and the thermal balance of the battery pack is achieved through the circulation of the coolant. However, the battery pack needs to be inserted into both the liquid cooling connector and the electrical connector at the same time. Inevitably, some joints may not be inserted in place during the insertion process, resulting in unstable electrical connection and liquid cooling connection, which may cause the connection to be disconnected and the safety and stability are poor. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect that when the battery pack is inserted into both the liquid cooling connector and the electrical connector at the same time in the prior art, there is a situation where the insertion is not in place, resulting in unstable electrical connection and liquid cooling connection, which may cause the connection to be disconnected and the safety and stability are poor, and to provide a quick-insert connection device, a battery rack, and an electric vehicle.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A quick-insert connection device is used to connect with the battery terminal electrical connector and the battery terminal liquid cooling connector on the battery pack. The quick-insert connection device includes a fixing plate, an electrical connector, a liquid cooling connector, a first floating mechanism, and a second floating mechanism. The first floating mechanism and the second floating mechanism are both spaced apart and connected to the fixing plate. The electrical connector is connected to the first floating mechanism and is inserted into the battery terminal electrical connector, and the liquid cooling connector is connected to the second floating mechanism and is inserted into the battery terminal liquid cooling connector.

[0007] In this solution, adopting the above structural form, the electrical connector is floatingly connected to the fixed plate through the first floating mechanism, so that even if there is a certain deviation between the electrical connector and the battery terminal electrical connector of the battery pack, docking can be achieved, improving the insertion success rate between the quick-insert connection device and the battery pack; the quick-insert connection device is inserted into the battery terminal liquid-cooled connector on the battery pack through the liquid-cooled connector, and the liquid-cooled connector is floatingly connected to the fixed plate through the second floating mechanism, so that even if there is a certain deviation between the liquid-cooled connector and the battery terminal liquid-cooled connector of the battery pack, docking can be achieved, improving the insertion success rate between the quick-insert connection device and the battery pack; at the same time, when the electrical connector and the liquid-cooled connector are inserted simultaneously, the position error between them is eliminated, effectively avoiding the situation where some are not inserted in place, achieving simultaneous insertion in place during the insertion process, and having high connection stability during use, effectively avoiding connection looseness, greatly improving the safety and stability of the quick-insert connection device, and extending the service life.

[0008] Preferably, the first floating mechanism includes a first floating plate and a plurality of first elastic components. The electrical connector is connected to the first floating plate. The plurality of first elastic components are distributed around the first floating plate. The length direction of the first elastic component is the same as the sliding direction of the first floating plate, and both ends of the first elastic component along its length direction are respectively connected to the first floating plate and the fixed plate.

[0009] In this solution, adopting the above structural form, with a plurality of first elastic components distributed around the first floating plate, elastic acting forces of the first elastic components are applied to the periphery of the first floating plate, ensuring that the first floating plate can move around on the fixed plate, thereby driving the electrical connector to float around together. During the insertion process, even if there is a certain deviation between the battery terminal electrical connector of the battery pack and the electrical connector, docking can be achieved, improving the insertion success rate between the electrical connector and the battery terminal electrical connector on the battery pack. At the same time, through the floating connection method, abnormal situations such as electrical connection failure or burning caused by connection looseness can be effectively avoided, improving the safety and stability of the electrical connection of the quick-insert connection device.

[0010] Preferably, the plurality of first elastic components include a plurality of first elastic members. The plurality of first elastic members are respectively connected to both ends of the first floating plate along the width direction of the battery pack, and the length direction of the plurality of first elastic members is the same as the width direction of the battery pack, so that the first floating plate slides along the width direction of the battery pack through the plurality of first elastic members.

[0011] In this solution, adopting the above structural form, two first elastic members respectively act on both ends of the first floating plate to enable the first floating plate to slide along the width direction of the battery pack, so that the electrical connector can move along the width direction of the battery pack with the first floating plate, achieving high sliding stability. At the same time, by arranging two first elastic members and the first floating plate along the width direction of the battery pack, the overall height of the quick-insert connection device is controlled, effectively reducing the occupied space in the height direction and enabling the installation of more battery packs.

[0012] Preferably, the number of the first elastic members is four, and the four first elastic members are respectively close to the four corners of the first floating plate.

[0013] In this solution, adopting the above structural form, four first elastic members respectively act on the four corners of the first floating plate, effectively avoiding the phenomenon of offset and dislocation during the sliding process of the first floating plate, and further improving the stability of the quick-insert connection device.

[0014] Preferably, the plurality of first elastic components include a plurality of second elastic members, the plurality of second elastic members are respectively connected to both ends of the first floating plate along the width direction of the battery pack, and the length directions of the plurality of second elastic members are the same as the thickness direction of the battery pack, so that the first floating plate slides along the thickness direction of the battery pack through the plurality of second elastic members.

[0015] In this solution, adopting the above structural form, a plurality of second elastic members respectively act on both ends of the first floating plate to enable the first floating plate to slide along the thickness direction of the battery pack, so that the electrical connection can also move along the thickness direction of the battery pack with the first floating plate. Furthermore, when the electrical connection is docked with the battery terminal electrical connector of the battery pack, it has more tolerance space, further improving the success rate, and achieving high sliding stability. At the same time, the plurality of second elastic members are distributed at both ends of the first floating plate along the width direction of the battery pack, so that the overall height of the quick-insert connection device is controlled, effectively reducing the occupied space in the height direction and enabling the installation of more battery packs.

[0016] Preferably, the first floating plate and / or the fixing plate are provided with a plurality of first positioning portions, the plurality of first positioning portions correspond to the plurality of first elastic components one by one, the first positioning portions extend along the length direction of the corresponding first elastic component, and the end portion of the first elastic component is sleeved on the first positioning portion.

[0017] In this solution, adopting the above structural form, the installation and connection of the first elastic component are very convenient through the first positioning column, and the installation accuracy is high; at the same time, it can effectively avoid the phenomenon of offset and dislocation during the deformation process of the first elastic component, and further improve the structural stability and installation alignment efficiency of the quick-insert connection device.

[0018] Preferably, there are a plurality of first avoidance holes on the first floating plate and / or the fixed plate, and the first elastic member and the first positioning portion are respectively located in the corresponding first avoidance holes.

[0019] In this solution, adopting the above structural form, the first avoidance holes play an avoidance role, effectively avoiding interference between the first floating plate and / or the fixed plate and the first elastic member, and ensuring the installation and positioning of the first elastic member. At the same time, both the first elastic member and the first positioning portion are arranged in the first avoidance holes, without occupying extra space, and making the structure more compact.

[0020] Preferably, the second floating mechanism includes a second floating plate and a plurality of second elastic members. The liquid cooling connector is connected to the second floating plate. The plurality of second elastic members are distributed around the second floating plate. The length direction of the second elastic member is the same as the sliding direction of the second floating plate, and both ends of the second elastic member along its length direction are respectively connected to the second floating plate and the fixed plate.

[0021] In this solution, adopting the above structural form, by distributing a plurality of second elastic members around the second floating plate, elastic acting forces are applied to the periphery of the second floating plate, ensuring that the second floating plate can move around on the fixed plate, thereby driving the liquid cooling connector to also float around. Even if there is a certain deviation between the liquid cooling connector at the battery end of the battery pack and the liquid cooling connector during the plugging process, docking can be achieved, improving the plugging success rate between the liquid cooling connector and the liquid cooling connector at the battery end on the battery pack. At the same time, there is no leakage phenomenon during the plugging process, and the loosening of the connection of the liquid cooling connector is effectively avoided, greatly improving the stability of the quick-connecting device and extending the service life.

[0022] Preferably, the plurality of second elastic members are respectively connected to both ends of the second floating plate along the width direction of the battery pack, and the length direction of the plurality of second elastic members is the same as the thickness direction of the battery pack, so that the second floating plate slides along the thickness direction of the battery pack through the plurality of second elastic members.

[0023] In this solution, adopting the above structural form, a plurality of second elastic members respectively act on both ends of the second floating plate to achieve the sliding of the second floating plate along the thickness direction of the battery pack, with high sliding stability. At the same time, the plurality of second elastic members are distributed at both ends of the second floating plate along the width direction of the battery pack, controlling the overall height of the quick-connecting device, effectively reducing the occupied space in the height direction, and enabling the installation of more battery packs.

[0024] Preferably, a plurality of second positioning portions are provided on the second floating plate and / or the fixing plate. The plurality of second positioning portions correspond to the plurality of second elastic members one by one. The second positioning portions are arranged to extend along the length direction of the corresponding second elastic members, and the ends of the second elastic members are sleeved on the second positioning portions.

[0025] In this solution, with the above structural form, the installation and connection of the second elastic member are very convenient through the second positioning post, and the installation accuracy is high. At the same time, it can effectively avoid the phenomenon of offset and dislocation of the second elastic member during the deformation process, and further improve the structural stability and installation alignment efficiency of the quick-insert connection device.

[0026] Preferably, the liquid cooling connector includes a mounting seat, a movable plate, a plurality of third elastic members and at least one plug. The plug is connected to the movable plate and is inserted into the liquid cooling connector at the battery end. The mounting seat is connected to the second floating mechanism. An activity cavity is provided in the mounting seat. The movable plate and the plurality of third elastic members are both located in the activity cavity. Two ends of the third elastic member are respectively connected to the movable plate and the mounting seat, so that the movable plate is movably connected to the mounting seat through the third elastic member.

[0027] In this solution, with the above structural form, the activity cavity will play a limiting role on the movable plate and the third elastic member to ensure the stable movement of the movable plate in the activity cavity, effectively avoiding the phenomenon of offset and dislocation of the plug during use, and improving the stability of the quick-insert connection device. At the same time, the movable plate is movably connected in the activity cavity through a plurality of third elastic members, so that the plug can follow and adjust its position in the second floating mechanism during the insertion process, further eliminating the deviation between the liquid cooling connector at the battery end of the battery pack and the liquid cooling connector and realizing docking. Thereby, the error tolerance rate and the insertion success rate between the liquid cooling connector and the liquid cooling connector at the battery end of the battery pack are further improved. At the same time, there is no leakage phenomenon during the insertion process, and the connection looseness of the liquid cooling connector is effectively avoided, greatly improving the stability of the quick-insert connection device and extending the service life.

[0028] Preferably, the quick-insert connection device further includes a detection component, which penetrates through the second floating mechanism and is used to detect whether the liquid cooling connector and the liquid cooling connector at the battery end are in place.

[0029] In this solution, with the above structural form, the detection component can detect the insertion situation of the liquid cooling connector, so as to detect whether the liquid cooling connector and the liquid cooling connector at the battery end are in place, effectively avoiding the liquid leakage caused by problems such as mis-insertion or incomplete insertion, and further improving the safety and stability of the quick-insert connection device.

[0030] Preferably, the number of the liquid cooling connectors is two, the electrical connector and the two liquid cooling connectors are arranged at intervals along the width direction of the battery pack, and the two liquid cooling connectors are arranged at both ends of the electrical connector, the two liquid cooling connectors are connected, and the corresponding battery end liquid cooling connectors are plugged to form a liquid cooling circulation path;

[0031] The number of the detection components is two, and the two detection components are respectively arranged on the second floating mechanism corresponding to the two liquid-cooling connectors.

[0032] In this solution, the above structure is adopted, and the two liquid cooling connectors are respectively connected to the inlet and outlet of the liquid cooling pipeline in the battery pack, so as to realize the circulation of the coolant into the battery pack for cooling. At the same time, the two detection components are used to detect the plugging status of the two liquid cooling connectors and the inlet and outlet of the liquid cooling pipeline in the battery pack, so as to ensure that the coolant is circulated and transported to the battery pack for cooling.

[0033] Preferably, the detection component includes a detection portion and a telescopic portion, and the telescopic portion can abut against the battery pack and move in a direction opposite to the plug-in direction during the plug-in process of the liquid-cooling connector and the battery-end liquid-cooling connector, so that the sensing element on the telescopic portion moves therewith until it is sensed by the detection portion to confirm that the liquid-cooling connector and the battery-end liquid-cooling connector are in place.

[0034] In the present solution, the above-mentioned structural form is adopted, and the telescopic part can be abutted against the battery pack during the plug-in process of the liquid-cooling connector and the battery-end liquid-cooling connector and can move in a direction opposite to the plug-in direction, so that the sensing part on the telescopic part moves therewith until it is sensed by the detection part to confirm that the liquid-cooling connector and the battery-end liquid-cooling connector are in place.

[0035] Preferably, the quick-connection device further comprises a base and a support plate which are hinged to each other, the fixing plate is slidably disposed on the support plate, and the support plate is used to carry the battery pack and can perform a downward flipping movement relative to the base under the action of the gravity of the battery pack.

[0036] The quick-plug connection device also includes a linkage mechanism, which is arranged between the base and the support plate, and includes an elastic member and a driving member, wherein the first end of the elastic member is fixed to a side where the support plate and the base are hinged, the second end of the elastic member is hinged to the first end of the driving member, and the middle of the elastic member is also connected to the bottom of the fixing plate, and the second end of the driving member is hinged to the position of the support plate for carrying the battery pack;

[0037] Under the action of the gravity of the battery pack, the support plate flips relative to the base, driving the driving member to rotate relative to the support plate with its second end as the center. As a result, the distance from the second end of the driving member to the elastic member gradually decreases, and the first end of the driving member drives the elastic member to expand and contract, driving the fixed plate to slide, so that the electrical connector is plugged into the battery terminal electrical connector and the liquid cooling connector is plugged into the battery terminal liquid cooling connector.

[0038] In this solution, with the above structural form, under the action of the gravity of the battery pack, the support plate can flip relative to the base with the connection point between the support plate and the base as the rotation axis, and drive the electrical connector and the liquid cooling connector to dock with the battery pack during the flipping process, so as to realize the linkage between the placement of the battery pack and the plugging of the battery pack. At the same time, the distance from the second end of the driving member to the elastic member can be gradually reduced, and the first end of the driving member drives the elastic member to expand and contract. Since the elastic member has a certain elastic potential energy when it is in the expanded and contracted state, when the battery pack is taken out from the support plate, the elastic member will return to its original state. During this process, the second end of the elastic member reacts on the first end of the driving member, causing the driving member to still rotate relative to the support plate with its second end as the center, and further enabling the support plate to smoothly return to its original position relative to the base. In addition, the first end of the elastic member is fixed at the edge of the first end in the width direction of the support plate, and the second end is connected to the driving member and is located at the position of the second end in the width direction of the support plate. When the support plate flips relative to the base, compared with directly vertically arranging a resilient member between the support plate and the base, this method can enable the elastic member to have greater elastic potential energy when expanding and contracting, which is more convenient to promote the support plate to return to its original position relative to the base.

[0039] Preferably, the linkage mechanism further includes a limiting member, which is connected to the support plate and can abut against the driving member when the battery pack is not placed on the support plate, so as to maintain an acute angle between the driving member and the elastic member.

[0040] And / or, the linkage mechanism further includes a fixing member, which is connected to the side wall of the base and is located above the rolling member at the hinge joint of the first end of the driving member and the second end of the elastic member in the vertical direction, so that the rolling member is always located between the base and the support plate.

[0041] In this solution, with the above structural form, when the battery pack is not placed on the support plate, the limiting member is used to abut against the driving member, always keeping an acute angle between the driving member and the elastic member, thereby ensuring the reliability of the repeated use of the flip - type connection device.

[0042] In addition, during the process of the support plate returning to its original position relative to the base, the fixing member is used to limit the rolling member to prevent the rolling member from disengaging between the base and the support plate due to excessive elastic potential energy of the elastic member during the process of returning to its original position, thereby ensuring the stability of the support plate returning to its original position relative to the base. When setting the fixing member to limit the rolling member, it is preferably arranged that the fixing member is located above the rolling member, and there is a certain gap between the two to avoid affecting the rolling of the rolling member by the fixing member. At the same time, the gap between the two should be minimized as much as possible according to the actual situation to ensure that the distance of the rolling member disengaging from the base is too large during the process of the support plate returning to its original position relative to the base.

[0043] Preferably, the quick-connecting device further includes a first strengthening component, and the first strengthening component is arranged on the fixing plate;

[0044] And / or, the quick-connecting device further includes a second strengthening component, and the second strengthening component is arranged on the support plate.

[0045] In this solution, adopting the above structural form, by arranging the first strengthening component on the fixing plate, the fixing plate is strengthened, the overall structural strength of the quick-connecting device is improved, and the safety and stability are higher.

[0046] In addition, by arranging the second strengthening component on the support plate, the support plate is strengthened, the overall structural strength of the quick-connecting device is improved, and the safety and stability are higher.

[0047] Preferably, the first strengthening component includes a first strengthening plate. The fixing plate includes a first connecting plate for installing the electrical connector and the liquid cooling connector and a second connecting plate connected to the first connecting plate and the support plate. The first strengthening plate is arranged on the side of the first connecting plate facing away from the electrical connector and the liquid cooling connector, and is respectively connected to the first connecting plate and the second connecting plate;

[0048] And / or, the first strengthening component includes a second strengthening plate. The fixing plate includes a first connecting plate for installing the electrical connector and the liquid cooling connector and a second connecting plate connected to the first connecting plate and the support plate. The second strengthening plate is arranged on the lower surface of the second connecting plate, and the second strengthening plate has a flange extending in a direction away from the second connecting plate.

[0049] In this solution, adopting the above structural form, the first reinforcing plate is arranged on the side of the first connecting plate away from the electrical connector and the liquid cooling connector, avoiding unnecessary interference of the first reinforcing plate on the electrical connector and the liquid cooling connector, and not affecting the plugging of the electrical connector and the liquid cooling connector with the battery pack on the other side of the first connecting plate. At the same time, the first reinforcing plate can fully strengthen the strength of the fixing plate, provide a more firm support for installation, and improve the overall structural strength of the quick plugging connection device.

[0050] In addition, the setting of the second reinforcing plate makes the structure of the second connecting plate have high strength, and effectively realizes the strengthening effect on the fixing plate, improving the overall structural strength of the quick plugging connection device and having higher safety and stability. At the same time, the space utilization is optimized to ensure the compact installation of the quick plugging connection device in a limited space.

[0051] Preferably, the second reinforcing component includes a third reinforcing plate, and the third reinforcing plate is arranged on the lower surface of the bearing area of the support plate for bearing the battery pack and has a bent edge extending in a direction away from the support plate.

[0052] In this solution, adopting the above structural form, the third reinforcing plate effectively realizes the strengthening effect on the support plate, improves the overall structural strength of the quick plugging connection device, effectively prevents the support plate from being pressed and bent or broken during the process of bearing the battery pack, and avoids the situation that the support plate cannot be flipped relative to the base, resulting in the inability to drive the fixing plate and the electrical connector and the liquid cooling connector thereon to slide relative to each other to plug with the battery terminal electrical connector and the battery terminal liquid cooling connector. At the same time, the space utilization is optimized to ensure the compact installation of the quick plugging connection device in a limited space.

[0053] Preferably, the second reinforcing component further includes a fourth reinforcing plate, and both ends of the fourth reinforcing plate are respectively connected to the bent edge and the support plate and are used for connecting the connecting part of the fixing plate;

[0054] And / or, the edge of the support plate facing the battery pack has a folding part, and there is a gap between the folding part and the third reinforcing plate for cooperating with the side wall of the base.

[0055] In this solution, adopting the above structural form, by connecting the fourth reinforcing plate to the bent edge, the support plate and the fixing plate, the overall structural connection strength is effectively strengthened, further preventing the support plate from being pressed and bent or broken during the process of bearing the battery pack, and having higher safety and stability. At the same time, the fourth reinforcing plate is arranged on the lower surface of the support plate, optimizing the space utilization and ensuring the compact installation of the quick plugging connection device in a limited space.

[0056] In addition, the strength of the support plate is enhanced by the folding part, achieving higher stability; and the folding part extends obliquely downward relative to the surface of the support plate. The folding part can overlap on the edge of the base when the support plate is attached to the base, so that the connection between the support plate and the base is closer, and the quick-connecting device is made more stable. At the same time, the space provided by this gap can be used to weld the third reinforcing plate to the lower surface of the support plate to ensure the stability of their connection.

[0057] A battery rack includes the quick-connecting device as described above.

[0058] In this solution, adopting the above structural form, the electrical connector and the liquid-cooling connector are respectively made to achieve floating connection through the first floating mechanism and the second floating mechanism, so that even if there are certain deviations between the battery-terminal electrical connector of the battery pack and the electrical connector, and between the battery-terminal liquid-cooling connector of the battery pack and the liquid-cooling connector, docking can be achieved, improving the insertion success rate between the quick-connecting device and the battery pack; at the same time, the electrical connector and the liquid-cooling connector eliminate the position error between each other during simultaneous insertion, effectively avoiding the situation where some are not inserted in place, achieving simultaneous insertion in place during the insertion process, and having high connection stability during use, effectively avoiding connection loosening, greatly improving the stability of the battery rack, and extending the service life.

[0059] An electric vehicle includes the quick-connecting device as described above.

[0060] In this solution, adopting the above structural form, the electrical connector and the liquid-cooling connector are respectively made to achieve floating connection through the first floating mechanism and the second floating mechanism, so that even if there are certain deviations between the battery-terminal electrical connector of the battery pack and the electrical connector, and between the battery-terminal liquid-cooling connector of the battery pack and the liquid-cooling connector, docking can be achieved, improving the insertion success rate between the quick-connecting device and the battery pack; at the same time, the electrical connector and the liquid-cooling connector eliminate the position error between each other during simultaneous insertion, effectively avoiding the situation where some are not inserted in place, achieving simultaneous insertion in place during the insertion process, and having high connection stability during use, effectively avoiding connection loosening, greatly improving the stability of the electric vehicle, and extending the service life.

[0061] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present invention.

[0062] The positive and progressive effects of the present invention are as follows:

[0063] The quick-connecting device, battery rack and electric vehicle of the present invention respectively enable the electrical connector and the liquid-cooling connector to achieve floating connection through the first floating mechanism and the second floating mechanism, so that even if there is a certain deviation between the battery terminal electrical connector of the battery pack and the electrical connector, and between the battery terminal liquid-cooling connector of the battery pack and the liquid-cooling connector, docking can be achieved, improving the insertion success rate between the quick-connecting device and the battery pack; at the same time, when the electrical connector and the liquid-cooling connector are inserted simultaneously, the position error between them is eliminated, effectively avoiding the situation where some are not inserted in place, realizing simultaneous insertion in place during the insertion process, and having high connection stability during use, effectively avoiding connection loosening, greatly improving the stability of the quick-connecting device, and prolonging the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a schematic structural diagram of the battery rack according to an embodiment of the present invention.

[0065] Figure 2 It is a schematic structural diagram of the quick-connecting device according to an embodiment of the present invention.

[0066] Figure 3 It is a partial structural diagram of the quick-connecting device according to an embodiment of the present invention, where the base is omitted.

[0067] Figure 4 It is a front view structural diagram of the fixing plate, electrical connector and liquid-cooling connector according to an embodiment of the present invention.

[0068] Figure 5 It is a rear view structural diagram of the fixing plate, electrical connector and liquid-cooling connector according to an embodiment of the present invention.

[0069] Figure 6 It is a bottom view structural diagram of the fixing plate, electrical connector and liquid-cooling connector according to an embodiment of the present invention.

[0070] Figure 7 It is a partial three-dimensional structural diagram of the fixing plate, electrical connector and liquid-cooling connector according to an embodiment of the present invention.

[0071] Figure 8 It is a partial front view structural diagram of the fixing plate, electrical connector and liquid-cooling connector according to an embodiment of the present invention.

[0072] Figure 9 It is a structural diagram of the detection component and the second floating mechanism according to an embodiment of the present invention.

[0073] Figure 10 It is a schematic structural diagram of the battery pack according to an embodiment of the present invention.

[0074] Figure 11 It is a top view structural diagram of the support plate according to an embodiment of the present invention.

[0075] Figure 12 This is the bottom view structural schematic diagram of the support plate according to an embodiment of the present invention.

[0076] Figure 13 is Figure 12 the partial enlarged schematic diagram of part A in

[0077] Figure 14 the partial enlarged schematic diagram of the support plate according to an embodiment of the present invention. Detailed implementation manners

[0078] The present invention will be more clearly and completely described below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the following embodiments.

[0079] As Figures 1 to 14 shown, an embodiment of the present invention discloses a battery rack, which includes a quick-connecting device 100. The quick-connecting device 100 is used to connect with a battery terminal electrical connector 201 and a battery terminal liquid cooling connector 202 on a battery pack 200. The quick-connecting device 100 realizes electrical connection with the battery terminal electrical connector 201 on the battery pack 200, so as to perform a charging operation on the battery pack 200. The quick-connecting device 100 and the battery terminal liquid cooling connector 202 on the battery pack 200 are inserted into each other, and a cooling medium can sequentially pass through the quick-connecting device 100 and the battery terminal liquid cooling connector 202 to lead to the inside of the battery pack 200, so as to realize the cooling of the battery pack 200 and avoid the performance and service life of the battery pack 200 being affected due to the too high temperature of the battery pack 200. Among them, a plurality of battery compartments are provided on the battery rack, and a quick-connecting device 100 is provided in each battery compartment.

[0080] As Figure 1 、 Figure 2 and Figure 10As shown, the quick-connecting device 100 includes an electrical connector 1, a liquid-cooling connector 2, a fixing plate 3, a first floating mechanism 4, and a second floating mechanism 5. The first floating mechanism 4 and the second floating mechanism 5 are both arranged at intervals and connected to the fixing plate 3. The electrical connector 1 is connected to the first floating mechanism 4 and inserted into the battery-terminal electrical connector 201, and the liquid-cooling connector 2 is connected to the second floating mechanism 5 and inserted into the battery-terminal liquid-cooling connector 202. The quick-connecting device 100 is mutually inserted with the battery-terminal electrical connector 201 on the battery pack 200 through the electrical connector 1 to achieve electrical connection. Through the first floating mechanism 4, the electrical connector 1 is floatingly connected to the fixing plate 3, so that even if there is a certain deviation between the electrical connector 1 and the battery-terminal electrical connector 201 of the battery pack 200, docking can be achieved, improving the insertion success rate between the quick-connecting device 100 and the battery pack 200. The quick-connecting device 100 is mutually inserted with the battery-terminal liquid-cooling connector 202 on the battery pack 200 through the liquid-cooling connector 2. Through the second floating mechanism 5, the liquid-cooling connector 2 is floatingly connected to the fixing plate 3, so that even if there is a certain deviation between the liquid-cooling connector 2 and the battery-terminal liquid-cooling connector 202 of the battery pack 200, docking can be achieved, improving the insertion success rate between the quick-connecting device 100 and the battery pack 200. At the same time, when the electrical connector 1 and the liquid-cooling connector 2 are inserted simultaneously, the position error between them is eliminated, effectively avoiding the situation that some are not inserted in place. It is realized that they are inserted in place simultaneously during the insertion process, and the connection stability is high during use, effectively avoiding connection loosening, greatly improving the safety and stability of the quick-connecting device 100, and prolonging the service life.

[0081] As Figure 2 , Figure 4 , Figure 7 , Figure 8 and Figure 10As shown in the figure, the first floating mechanism 4 includes a first floating plate 41 and a plurality of first elastic members 42. The electrical connector 1 is connected to the first floating plate 41. The plurality of first elastic members 42 are distributed around the first floating plate 41. The length direction of the first elastic member 42 is the same as the sliding direction of the first floating plate 41, and both ends of the first elastic member 42 along its length direction are respectively connected to the first floating plate 41 and the fixed plate 3. By distributing the plurality of first elastic members 42 around the first floating plate 41, the first floating plate 41 is elastically forced by the first elastic members 42 around it, ensuring that the first floating plate 41 can move around on the fixed plate 3, thereby driving the electrical connector 1 to also float around. During the plugging process, even if there is a certain deviation between the battery terminal electrical connector 201 of the battery pack 200 and the electrical connector 1, docking can be achieved, improving the plugging success rate between the electrical connector 1 and the battery terminal electrical connector 201 on the battery pack 200. At the same time, through the floating connection method, abnormal situations such as electrical connection failure or burning caused by connection loosening can be effectively avoided, improving the safety and stability of the electrical connection of the quick plug connection device 100.

[0082] The plurality of first elastic members 42 include a plurality of first elastic elements 421. The plurality of first elastic elements 421 are respectively connected to both ends of the first floating plate 41 along the width direction of the battery pack 200, and the length direction of the plurality of first elastic elements 421 is the same as the width direction of the battery pack 200, so that the first floating plate 41 slides along the width direction of the battery pack 200 through the plurality of first elastic elements 421. The two first elastic elements 421 respectively act on both ends of the first floating plate 41 to realize the sliding of the first floating plate 41 along the width direction of the battery pack 200, so that the electrical connector 1 can move with the first floating plate 41 in the width direction of the battery pack 200, realizing high sliding stability. At the same time, in the battery rack, a plurality of battery packs 200 are stacked in the height direction and are electrically connected and cooled through a plurality of quick plug connection devices 100. By arranging the two first elastic elements 421 and the first floating plate 41 along the width direction of the battery pack 200, the overall height of the quick plug connection device 100 is controlled, effectively reducing the occupied space in the height direction and realizing the installation and setting of more battery packs 200.

[0083] The number of the first elastic elements 421 is four, and the four first elastic elements 421 are respectively close to the four corners of the first floating plate 41. The four first elastic elements 421 respectively act on the four corners of the first floating plate 41, effectively avoiding the phenomenon of offset and dislocation of the first floating plate 41 during the sliding process, and further improving the stability of the quick plug connection device 100. Of course, in other embodiments, the number and the setting position of the first elastic elements 421 can be arranged according to requirements and space.

[0084] Among them, the first elastic member 421 can be a spring, or the first elastic member 421 can also be an elastic rubber or an elastic component with a deformation space, so that the first elastic member 421 has good elastic effect and high stability; at the same time, the structure is simple and the cost is low.

[0085] As Figure 4 , Figure 7 , Figure 8 and Figure 10 shown, a plurality of first elastic components 42 include a plurality of second elastic members 422. The plurality of second elastic members 422 are respectively connected to both ends of the first floating plate 41 along the width direction of the battery pack 200, and the length direction of the plurality of second elastic members 422 is the same as the thickness direction of the battery pack 200, so that the first floating plate 41 slides along the thickness direction of the battery pack 200 through the plurality of second elastic members 422. The plurality of second elastic members 422 respectively act on both ends of the first floating plate 41 to realize the sliding of the first floating plate 41 along the thickness direction of the battery pack 200, so that the electrical connection can also move along the thickness direction of the battery pack 200 with the first floating plate 41. Furthermore, when the electrical connection is docked with the battery terminal electrical connector 201 of the battery pack 200, there is more error tolerance space, further improving the success rate, and realizing high sliding stability. At the same time, the plurality of second elastic members 422 are distributed at both ends of the first floating plate 41 along the width direction of the battery pack 200. In the battery rack, a plurality of battery packs 200 are stacked in the height direction and electrically connected and cooled through a plurality of quick-connect devices 100, so that the overall height of the quick-connect device 100 is controlled, effectively reducing the occupied space in the height direction and realizing the installation and setting of more battery packs 200.

[0086] Among them, the number of the second elastic members 422 is two, and the two second elastic members 422 are respectively located at both ends of the first floating plate 41. The second elastic member 422 can be a spring, or the second elastic member 422 can also be an elastic rubber or an elastic component with a deformation space, so that the second elastic member 422 has good elastic effect and high stability; at the same time, the structure is simple and the cost is low.

[0087] The first floating plate 41 and / or the fixing plate 3 are / is provided with a plurality of first positioning portions 411. The plurality of first positioning portions 411 correspond to the plurality of first elastic components 42 one by one. The first positioning portions 411 extend along the length direction of the corresponding first elastic component 42, and the end portion of the first elastic component 42 is sleeved on the first positioning portion 411. The first floating plate 41 and / or the fixing plate 3 are / is connected to the end portion of the first elastic component 42 through the first positioning portion 411. Through the first positioning column, the installation and connection of the first elastic component 42 are very convenient and the installation accuracy is high; at the same time, it can effectively avoid the offset and dislocation phenomenon of the first elastic component 42 during the deformation process, further improving the structural stability and installation alignment efficiency of the quick-connect device 100.

[0088] The first floating plate 41 and / or the fixed plate 3 are provided with a plurality of first avoidance holes 412, and the first elastic member 42 and the first positioning portion 411 are respectively located in the corresponding first avoidance holes 412. The first avoidance holes 412 play an avoidance role, effectively avoiding interference between the first floating plate 41 and / or the fixed plate 3 and the first elastic member 42, and ensuring the installation and positioning of the first elastic member 42. At the same time, both the first elastic member 42 and the first positioning portion 411 are arranged in the first avoidance holes 412, without occupying extra space, and making the structure more compact. In this embodiment, the first floating plate 41 and / or the fixed plate 3 are both provided with a plurality of first positioning portions 411. Both the first floating plate 41 and the fixed plate 3 are provided with a plurality of first avoidance holes 412.

[0089] The second floating mechanism 5 includes a second floating plate 51 and a plurality of second elastic members 52. The liquid cooling connector 2 is connected to the second floating plate 51. The plurality of second elastic members 52 are distributed around the second floating plate 51. The length direction of the second elastic members 52 is the same as the sliding direction of the second floating plate 51, and both ends of the second elastic members 52 along their length direction are respectively connected to the second floating plate 51 and the fixed plate 3. By distributing the plurality of second elastic members 52 around the second floating plate 51, elastic acting forces of the second elastic members 52 are applied to the periphery of the second floating plate 51, ensuring that the second floating plate 51 can move around on the fixed plate 3, thereby driving the liquid cooling connector 2 to also float around. During the plugging process, even if there is a certain deviation between the battery-side liquid cooling connector 202 of the battery pack 200 and the liquid cooling connector 2, docking can be achieved, improving the plugging success rate between the liquid cooling connector 2 and the battery-side liquid cooling connector 202 on the battery pack 200. At the same time, no leakage phenomenon occurs during the plugging process, and connection looseness of the liquid cooling connector 2 is effectively avoided, greatly improving the stability of the quick-connect device 100 and extending its service life.

[0090] Specifically, in this embodiment, a plurality of second elastic members 52 are respectively connected to both ends of the second floating plate 51 in the width direction of the battery pack 200, and the length direction of the plurality of second elastic members 52 is the same as the thickness direction of the battery pack 200, so that the second floating plate 51 slides along the thickness direction of the battery pack 200 through the plurality of second elastic members 52. The plurality of second elastic members 52 respectively act on both ends of the second floating plate 51 to realize the sliding of the second floating plate 51 along the thickness direction of the battery pack 200, achieving high sliding stability. At the same time, the plurality of second elastic members 52 are distributed at both ends of the second floating plate 51 in the width direction of the battery pack 200. In the battery rack, a plurality of battery packs 200 are stacked in the height direction and electrically connected and cooled through a plurality of quick-connecting devices 100, so that the overall height of the quick-connecting devices 100 is controlled, effectively reducing the occupied space in the height direction and realizing the installation and setting of more battery packs 200.

[0091] Among them, the number of the second elastic members 52 is two, and the two second elastic members 52 are respectively located at both ends of the second floating plate 51. The second elastic member 52 can be a spring, or the second elastic member 52 can also be elastic rubber or an elastic member with a deformation space, so that the elastic effect of the second elastic member 52 is good and the stability is high; at the same time, the structure is simple and the cost is low.

[0092] The second floating plate 51 and / or the fixing plate 3 are / is provided with a plurality of second positioning portions 511. The plurality of second positioning portions 511 correspond to the plurality of second elastic members 52 one by one. The second positioning portions 511 extend along the length direction of the corresponding second elastic member 52, and the end portion of the second elastic member 52 is sleeved on the second positioning portion 511. The second floating plate 51 and / or the fixing plate 3 are / is connected to the end portion of the second elastic member 52 through the second positioning portion 511. The installation and connection of the second elastic member 52 are very convenient through the second positioning post, and the installation accuracy is high; at the same time, it can effectively avoid the phenomenon of offset and dislocation of the second elastic member 52 during the deformation process, further improving the structural stability and installation alignment efficiency of the quick-connecting device 100.

[0093] The second floating plate 51 and / or the fixed plate 3 are provided with a plurality of second avoidance holes 512 for avoiding the second elastic member 52 and the second positioning portion 511. The second elastic member 52 and the second positioning portion 511 are both located in the corresponding second avoidance holes 512. The second avoidance holes 512 play an avoidance role, effectively avoiding interference between the second floating plate 51 and / or the fixed plate 3 and the second elastic member 52, and ensuring the installation and positioning of the second elastic member 52. At the same time, both the second elastic member 52 and the second positioning portion 511 are arranged in the second avoidance holes 512, without occupying extra space, and making the structure more compact. In this embodiment, the second floating plate 51 and / or the fixed plate 3 are both provided with a plurality of second positioning portions 511. The second floating plate 51 and the fixed plate 3 are both provided with a plurality of second avoidance holes 512.

[0094] As Figure 7 , Figure 8 and Figure 10 shown, the liquid cooling connector 2 includes a mounting base 21, a movable plate 22, a plurality of third elastic members 23 and at least one connector 24. The connector 24 is connected to the movable plate 22 and is inserted into the liquid cooling connector 202 at the battery end. The mounting base 21 is connected to the second floating mechanism 5. The mounting base 21 has a movable cavity. The movable plate 22 and the plurality of third elastic members 23 are both located in the movable cavity. The two ends of the third elastic member 23 are respectively connected to the movable plate 22 and the mounting base 21, so that the movable plate 22 is movably connected to the mounting base 21 through the third elastic member 23. The mounting base 21 is mounted and connected to the second floating mechanism 5 and has a movable cavity. The movable plate 22 is mounted and connected in the movable cavity of the mounting base 21 through the third elastic member 23 to achieve floating connection, which will drive the connector 24 to achieve floating together. The movable cavity will play a limiting role on the movable plate 22 and the third elastic member 23 to ensure the stable movement of the movable plate 22 in the movable cavity, effectively avoiding the offset and dislocation of the connector 24 during use, and improving the stability of the quick-connecting device. At the same time, the movable plate 22 is movably connected in the movable cavity through a plurality of third elastic members 23. The connector 24 is mounted and connected to the movable plate 22 and is used to be inserted into or disconnected from the liquid cooling connector 202 on the battery pack 200. During the insertion process, the connector 24 can follow the movement and adjust its position in the second floating mechanism 5, further eliminating the deviation between the liquid cooling connector 202 at the battery end of the battery pack 200 and the liquid cooling connector 2 and achieving docking, thereby further improving the error tolerance and insertion success rate between the liquid cooling connector 2 and the liquid cooling connector 202 at the battery end of the battery pack 200. At the same time, there is no leakage phenomenon during the insertion process, and the loosening of the connection of the liquid cooling connector 2 is effectively avoided, greatly improving the stability of the quick-connecting device 100 and prolonging the service life. Among them, in Figure 7 and Figure 8 the cover on the mounting base 21 and the sealing ring on the mounting base 21 are omitted in the liquid cooling connector 2.

[0095] As Figure 2 and Figure 7 shown, the number of the liquid cooling connectors 2 is two. The electrical connector 1 and the two liquid cooling connectors 2 are arranged at intervals in the width direction of the battery pack 200, and the two liquid cooling connectors 2 are arranged at both ends of the electrical connector 1. The two liquid cooling connectors 2 are communicated with each other, and the corresponding battery-end liquid cooling connectors 202 are plugged to form a liquid cooling circulation path. Each liquid cooling connector 2 is provided with a plug 24, and the two plugs 24 are respectively connected to the inlet and outlet of the liquid cooling pipeline in the battery pack 200, so as to realize the circulating transportation of the coolant into the battery pack 200 for cooling.

[0096] As Figure 5 , Figure 9 and Figure 10 shown, the quick-connecting device 100 further includes a detection component 6. The detection component 6 is inserted through the second floating mechanism 5 and is used to detect whether the liquid cooling connector 2 and the battery-end liquid cooling connector 202 are in place. Through the detection component 6, the plugging condition of the liquid cooling connector 2 can be detected, so as to detect whether the liquid cooling connector 2 and the battery-end liquid cooling connector 202 are in place, effectively avoiding problems such as misplugging or incomplete plugging, which may cause liquid leakage, and further improving the safety and stability of the quick-connecting device 100.

[0097] Wherein, the number of the detection components 6 is two, and the two detection components 6 are respectively arranged on the second floating mechanism 5 corresponding to the two liquid cooling connectors 2. The two detection components 6 are used to detect the plugging conditions of the two liquid cooling connectors 2 with the inlet and outlet of the liquid cooling pipeline in the battery pack 200, so as to ensure the circulating transportation of the coolant into the battery pack 200 for cooling.

[0098] Preferably, the detection component 6 includes a detection portion 61 and a telescopic portion 62, one end of the telescopic portion 62 is arranged on the side of the fixed plate 3 facing the battery pack 200, and the other end passes through the fixed plate 3 and extends to the side of the fixed plate 3 away from the battery pack 200, and the other end of the telescopic portion 62 is provided with a sensing element, the detection portion 61 is arranged on the side of the fixed plate 3 away from the battery pack 200 and is offset with the sensing element in the direction in which the quick-plug connection device and the battery pack 200 are connected, and during the connection process between the liquid-cooling connector 2 and the battery-end liquid-cooling connector 202, it can be abutted against the battery pack 200 and can move in a direction opposite to the connection direction, so that the sensing element on the telescopic portion 62 moves with it until it is sensed by the detection portion 61 to confirm that the liquid-cooling connector 2 and the battery-end liquid-cooling connector 202 are connected in place. During the process of plugging the liquid-cooling connector 2 and the battery-end liquid-cooling connector 202, the telescopic portion 62 can abut against the battery pack 200 and can move in a direction opposite to the plugging direction, so that the sensing element on the telescopic portion 62 moves with it until it is sensed by the detection portion 61 to confirm that the liquid-cooling connector 2 and the battery-end liquid-cooling connector 202 are plugged in place.

[0099] Specifically, when the liquid-cooling connector 2 begins to be connected with the liquid-cooling pipeline, the telescopic part 62 abuts against the battery pack 200, and the sensing part on the telescopic part 62 moves accordingly. When the liquid-cooling connector 2 and the battery-end liquid-cooling connector 202 are plugged into place, the position of the sensing part reaches a certain specific point, so that the detection part 61 can sense and confirm that it is in place. After the detection part 61 senses, the system confirms that the liquid-cooling connector 2 and the battery-end liquid-cooling connector 202 are connected into place.

[0100] The detection component 6 also includes a connection portion 64 connected to the second floating plate 51 and a fixing portion 63 disposed on the connection portion 64, and the detection component 61 is mounted on the fixing portion 63. The combination of the connection portion 64 and the fixing portion 63 makes the overall structure of the detection component 6 more compact, provides a more stable support for the detection portion 61, and realizes a more secure connection. When the telescopic portion 62 moves, it ensures that the detection portion 61 can accurately sense the sensing element, so as to accurately detect the plugging state of the liquid-cooling connector 2 and the liquid-cooling pipeline, and has high reliability.

[0101] like Figure 2 , Figure 3 , Figure 11 and Figure 12As shown, the quick-connecting device 100 further includes a base 7 and a support plate 8 that are hinged to each other. The fixing plate 3 is slidably disposed on the support plate 8, and the support plate 8 is used to carry the battery pack 200 and can make a downward flipping movement relative to the base 7 under the gravity of the battery pack 200. The quick-connecting device 100 further includes a linkage mechanism 9. The linkage mechanism 9 is disposed between the base 7 and the support plate 8. The linkage mechanism 9 includes an elastic member 91 and a driving member 92. The first end of the elastic member 91 is fixed to one side where the support plate 8 is hinged to the base 7. The second end of the elastic member 91 is hinged to the first end of the driving member 92, and the elastic member 91 is connected to the fixing plate 3. The second end of the driving member 92 is hinged at the position of the support plate 8 for carrying the battery pack 200. The support plate 8 is flipped relative to the base 7 under the gravity of the battery pack 200 to drive the driving member 92 to rotate relative to the support plate 8 with its second end as the center. As a result, the distance from the second end of the driving member 92 to the elastic member 91 gradually decreases, and the first end of the driving member 92 drives the elastic member 91 to expand and contract to drive the fixing plate 3 to slide, so that the electrical connector 1 is inserted into the battery terminal electrical connector 201 and the liquid cooling connector 2 is inserted into the battery terminal liquid cooling connector 202.

[0102] With the above settings, under the gravity of the battery pack 200, the support plate 8 can flip relative to the base 7 with the first end edge in its width direction as the rotation axis, and drive the connection assembly to dock with the battery pack 200 during the flipping process, so as to realize the linkage between the placement of the battery pack 200 and the insertion of the battery pack 200. At the same time, it can also make the distance from the second end of the driving member 92 to the elastic member 91 gradually decrease, and the first end of the driving member 92 drives the elastic member 91 to expand and contract. Since the elastic member 91 has a certain elastic potential energy when it is in the expanded and contracted state, when the battery pack 200 is taken out from the support plate 8, the elastic member 91 will return to its original state. During this process, the second end of the elastic member 91 reacts on the first end of the driving member 92, so that the driving member 92 still rotates relative to the support plate 8 with its second end as the center, and further enables the support plate 8 to smoothly return to its original position relative to the base 7. In addition, the first end of the elastic member 91 is fixed to the first end edge in the width direction of the support plate 8, and the second end is connected to the driving member 92 and is located at the second end position in the width direction of the support plate 8. When the support plate 8 flips relative to the base 7, compared with directly vertically arranging a return spring between the support plate 8 and the base 7, this way can make the elastic member 91 have a greater elastic potential energy when it expands and contracts, which is more convenient to promote the support plate 8 to return to its original position relative to the base 7.

[0103] The elastic member 91 includes a compression spring 911 and a connecting rod 912. One end of the compression spring 911 of the elastic member 91 is fixed at the edge position of the first end of the support plate 8, and the other end of the compression spring 911 is connected to the connecting rod 912. The end of the connecting rod 912 away from the compression spring 911 is a bifurcated structure, and the rolling member 95 is arranged in the bifurcated structure. The connecting rod 912 passes through the bifurcated structure and the rolling member 95 at the same time. With this arrangement, the compression spring 911 is used to enable the elastic member 91 to generate elastic potential energy when it is stretched. The connecting rod 912 is used to cooperate with the driving member 92, and the end of the connecting rod 912 away from the compression spring 911 is set as a bifurcated structure, which can more conveniently accommodate the rolling member 95 in the bifurcated structure and can also better realize the hinge between the driving member 92 and the elastic member 91.

[0104] Wherein, when the elastic member 91 is specifically composed of a combination of a compression spring 911 and a connecting rod 912, the fixing plate 3 is connected to the elastic member 91, specifically at the connection transition position between the compression spring 911 and the connecting rod 912. So that during the telescopic process of the elastic member 91, the fixing plate 3 is driven to slide on the support plate 8 and is inserted into the battery pack 200. Specifically, when the battery pack 200 is placed on the support plate 8, the support plate 8 rotates relative to the base 7 and gradually fits against the base 7. At this time, the connecting rod 912 of the elastic member 91 drives the compression spring 911 to be stretched, and at the same time, the fixing plate 3 can be pulled to move in the direction of the battery pack 200, so as to realize the insertion between the electrical connector 1 and the liquid cooling connector 2 on the fixing plate 3 and the battery pack 200, and realize the linkage between the placement of the battery pack 200 and the insertion of the battery pack 200. However, it should be noted that when the structure of the elastic member 91 changes according to the actual situation, the connection position between the fixing plate 3 and the elastic member 91 can also change, as long as the elastic member 91 can drive the fixing plate 3 to slide on the support plate 8 and be inserted into the battery pack 200 during the telescopic process.

[0105] Such as Figure 11 、 Figure 12 and Figure 13As shown, the linkage mechanism 9 further includes a limiting member 93. The limiting member 93 is connected to the support plate 8 and can abut against the driving member 92 when the battery pack 200 is not placed on the support plate 8, so as to maintain an acute angle between the driving member 92 and the elastic member 91. Since the elastic potential energy of the elastic member 91 is relatively large when it is stretched, if the battery pack 200 is removed from the support plate 8 at a relatively high speed, the retraction speed of the elastic member 91 is also relatively high, and it is very likely to pull the driving member 92, resulting in an obtuse angle between the elastic member 91 and the driving member 92. At this time, if the battery pack 200 is placed on the support plate 8 again, the driving member 92 cannot cause the elastic member 91 to be stretched anymore. To avoid this situation, a limiting member 93 is connected to the support plate 8 to abut against the driving member 92 by using the limiting member 93 when the battery pack 200 is not placed on the support plate 8, so as to always maintain an acute angle between the driving member 92 and the elastic member 91, thereby ensuring the reliability of the repeated use of the flip - type connection device.

[0106] The linkage mechanism 9 further includes a fixing member 94. The fixing member 94 is connected to the side wall of the base 7 and is located above the rolling member 95 at the hinge joint of the first end of the driving member 92 and the second end of the elastic member 91 in the vertical direction, so that the rolling member 95 is always located between the base 7 and the support plate 8. Through this setting, when the support plate 8 returns to its original position relative to the base 7, the fixing member 94 is used to limit the rolling member 95, avoiding the rolling member 95 being separated from between the base 7 and the support plate 8 due to the too large elastic potential energy of the elastic member 91 during the process of returning to the original position, thereby ensuring the stability of the support plate 8 returning to its original position relative to the base 7. When setting the fixing member 94 to limit the rolling member 95, a better setting is to make the fixing member 94 located above the rolling member 95, with a certain gap between them, to avoid the fixing member 94 affecting the rolling of the rolling member 95. At the same time, according to the actual situation, the gap between them should be reduced as much as possible to ensure that during the process of the support plate 8 returning to its original position relative to the base 7, the distance of the rolling member 95 from the base 7 is too large. It should be noted that in this embodiment, the fixing member 94 specifically uses a fixing screw, and a threaded hole is provided on the side wall of the base 7 corresponding to the fixing screw, so that the fixing screw can be more conveniently connected to the side wall of the base 7 and extend towards the rolling member 95. However, in other embodiments, the fixing member 94 can completely adopt any fixable element existing in the prior art, such as directly fixedly connecting a fixing block on the inner side wall of the base 7 and using the fixing block to limit the rolling member 95.

[0107] As Figure 5 As shown, the quick - plug connection device 100 further includes a first strengthening assembly 10. The first strengthening assembly 10 is arranged on the fixing plate 3. By arranging the first strengthening assembly 10 on the fixing plate 3, the fixing plate 3 is strengthened, the overall structural strength of the quick - plug connection device 100 is improved, and the safety and stability are higher.

[0108] As Figure 11 , Figure 12 and Figure 14 shown, the quick-connecting device 100 further includes a second strengthening component 11, and the second strengthening component 11 is disposed on the support plate 8. By disposing the second strengthening component 11 on the support plate 8, the support plate 8 is strengthened, the overall structural strength of the quick-connecting device 100 is improved, and the safety and stability are higher.

[0109] Specifically, as Figure 5 shown, the first strengthening component 10 includes a first strengthening plate 101. The fixing plate 3 includes a first connecting plate 31 for mounting the electrical connector 1 and the liquid-cooling connector 2 and a second connecting plate 32 connected to the first connecting plate 31 and connected to the support plate 8. The first strengthening plate 101 is disposed on a side of the first connecting plate 31 facing away from the electrical connector 1 and the liquid-cooling connector 2, and is respectively connected to the first connecting plate 31 and the second connecting plate 32. The first strengthening plate 101 is disposed on a side of the first connecting plate 31 facing away from the electrical connector 1 and the liquid-cooling connector 2, avoiding unnecessary interference of the first strengthening plate 101 on the electrical connector 1 and the liquid-cooling connector 2, and not affecting the plugging of the electrical connector 1 and the liquid-cooling connector 2 with the battery pack 200 on the other side of the first connecting plate 31. At the same time, the first strengthening plate 101 is not only connected to the first connecting plate 31, but also connected to the second connecting plate 32, forming a stable three-dimensional connection structure. Thus, the first strengthening plate 101 can fully strengthen the strength of the fixing plate 3, provide a more firm support for the installation, and improve the overall structural strength of the quick-connecting device 100.

[0110] As Figure 5 and Figure 6 shown, the first strengthening component 10 includes a second strengthening plate 102. The fixing plate 3 includes a first connecting plate 31 for mounting the electrical connector 1 and the liquid-cooling connector 2 and a second connecting plate 32 connected to the first connecting plate 31 and connected to the support plate 8. The second strengthening plate 102 is disposed on the lower surface of the second connecting plate 32, and the second strengthening plate 102 has a flanging extending in a direction away from the second connecting plate 32. By disposing the second strengthening plate 102 on the lower surface of the second connecting plate 32 and having a flanging extending in a direction away from the second connecting plate 32, the second strengthening plate 102 makes the structure of the second connecting plate 32 have high strength, and effectively strengthens the fixing plate 3, improving the overall structural strength of the quick-connecting device 100 and having higher safety and stability. At the same time, the space utilization is optimized, ensuring the compact installation of the quick-connecting device 100 in a limited space. In a preferred embodiment, in order to further improve the strength of the fixing plate 3, the second strengthening plates 102 can be provided in plurality, and the plurality of second strengthening plates 102 are arranged side by side along the width direction of the battery pack 200 on the lower surface of the second connecting plate 32.

[0111] As Figure 11 and Figure 12 shown, the second reinforcement component 11 includes a third reinforcement plate 111. The third reinforcement plate 111 is disposed on the lower surface of the bearing area of the support plate 8 for bearing the battery pack 200 and has a bent edge extending in a direction away from the support plate 8. By being connected to the lower surface of the support plate 8 and having a bent edge extending in a direction away from the support plate 8, the third reinforcement plate 111 effectively realizes the reinforcement effect on the support plate 8, improves the overall structural strength of the quick-insert connection device 100, effectively prevents the support plate 8 from being pressed and bent or broken during the process of bearing the battery pack 200, and avoids the situation that the support plate 8 cannot be flipped relative to the base 7, resulting in the inability to drive the fixing plate 3 and the electrical connectors 1 and liquid cooling connectors 2 thereon to slide relative to each other to be inserted into the battery terminal electrical connector 201 and the battery terminal liquid cooling connector 202. At the same time, the space utilization is optimized, ensuring the compact installation of the quick-insert connection device 100 in a limited space.

[0112] As Figure 11 , Figure 12 and Figure 14 shown, the second reinforcement component 11 further includes a fourth reinforcement plate 112. The two ends of the fourth reinforcement plate 112 are respectively connected to the bent edge and the support plate 8 and are used for connecting the connecting portion 64 of the fixing plate 3. By connecting the fourth reinforcement plate 112 to the bent edge, the support plate 8 and the fixing plate 3, the connection strength of the overall structure is effectively enhanced, further preventing the support plate 8 from being pressed and bent or broken during the process of bearing the battery pack 200, and having higher safety and stability. At the same time, the fourth reinforcement plate 112 is disposed on the lower surface of the support plate 8, optimizing the space utilization and ensuring the compact installation of the quick-insert connection device 100 in a limited space.

[0113] As Figure 12 shown, the edge of the support plate 8 facing the battery pack 200 has a folding portion 81 disposed at an angle to the support plate 8. There is a gap between the folding portion 81 and the third reinforcement plate 111 for cooperating with the side wall of the base 7. After the support plate 8 is flipped to the position facing the base 7, the upward edge of the base 7 cooperates with the gap, and the folding portion 81 then overlaps on the outer edge of the base 7. Through the folding portion 81, the strength of the support plate 8 is enhanced, achieving higher stability; and the folding portion 81 extends obliquely downward relative to the surface of the support plate 8. The folding portion 81 can overlap on the edge of the base 7 when the support plate 8 is attached to the base 7, so that the connection between the support plate 8 and the base 7 is closer, realizing a more stable quick-insert connection device 100. At the same time, since there is a gap between the third reinforcement plate 111 and the folding portion 81, the space provided by this gap can be used to weld the third reinforcement plate 111 to the lower surface of the support plate 8 to ensure the stability of their connection.

[0114] This embodiment also discloses an electric vehicle, which includes the above quick-connecting device 100. The battery pack 200 moves in the direction close to the quick-connecting device 100, so that the battery terminal electrical connector 201 and the battery terminal liquid-cooling connector 202 on the battery pack 200 are inserted into the electrical connector 1 and the liquid-cooling connector 2 on the quick-connecting device 100 respectively. One action can complete the electrical connection and liquid-cooling connection between the quick-connecting device 100 and the battery pack 200, which is beneficial to improving the installation efficiency, and the connection is stable and reliable, effectively avoiding the problem of unstable connection. The electrical connector 1 and the liquid-cooling connector 2 on the quick-connecting device 100 are respectively floating-connected to the fixing plate 3 through the first floating mechanism 4 and the second floating mechanism 5, so that even if there is a certain deviation between the electrical connector 1, the liquid-cooling connector 2 and the battery pack 200, docking can be achieved, improving the insertion success rate between the quick-connecting device 100 and the battery pack 200; at the same time, the electrical connector 1 and the liquid-cooling connector 2 eliminate the position error between each other during simultaneous insertion, effectively avoiding the situation that some are not inserted in place, realizing simultaneous insertion in place during the insertion process, and having high connection stability during use, effectively avoiding connection loosening, greatly improving the safety and stability of the quick-connecting device 100, and extending the service life.

[0115] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A quick-connecting device, which is used to connect with the battery terminal electrical connector and the battery terminal liquid cooling connector on the battery pack, and is characterized in that, The quick-connecting device includes a fixing plate, an electrical connector, a liquid-cooling connector, a first floating mechanism, and a second floating mechanism. The first floating mechanism and the second floating mechanism are both arranged at intervals and connected to the fixing plate. The electrical connector is connected to the first floating mechanism and is inserted into the battery-terminal electrical connector. The liquid-cooling connector is connected to the second floating mechanism and is inserted into the battery-terminal liquid-cooling connector.

2. The quick-connecting device according to claim 1, characterized in that, The first floating mechanism includes a first floating plate and a plurality of first elastic components. The electrical connector is connected to the first floating plate. The plurality of first elastic components are distributed around the first floating plate. The length direction of the first elastic component is the same as the sliding direction of the first floating plate, and both ends of the first elastic component along its length direction are respectively connected to the first floating plate and the fixing plate.

3. The quick-connecting device according to claim 2, wherein, The plurality of first elastic components include a plurality of first elastic members. The plurality of first elastic members are respectively connected to both ends of the first floating plate along the width direction of the battery pack, and the length direction of the plurality of first elastic members is the same as the width direction of the battery pack, so that the first floating plate slides along the width direction of the battery pack through the plurality of first elastic members.

4. The quick-connecting device according to claim 3, characterized in that, The number of the first elastic members is four, and the four first elastic members are respectively close to the four corners of the first floating plate.

5. The quick-connecting device according to claim 2 or 3, characterized in that, The plurality of first elastic components include a plurality of second elastic members. The plurality of second elastic members are respectively connected to both ends of the first floating plate along the width direction of the battery pack, and the length direction of the plurality of second elastic members is the same as the thickness direction of the battery pack, so that the first floating plate slides along the thickness direction of the battery pack through the plurality of second elastic members.

6. The quick-connecting device according to claim 2, wherein The first floating plate and / or the fixing plate is provided with a plurality of first positioning portions. The plurality of first positioning portions correspond to the plurality of first elastic components one by one. The first positioning portion extends along the length direction of the corresponding first elastic component, and the end portion of the first elastic component is sleeved on the first positioning portion. Preferably, the first floating plate and / or the fixing plate is provided with a plurality of first avoidance holes. The first elastic component and the first positioning portion are respectively located in the corresponding first avoidance holes.

7. The quick-connecting device according to claim 1, characterized in that The second floating mechanism includes a second floating plate and a plurality of second elastic components. The liquid-cooling connector is connected to the second floating plate. The plurality of second elastic components are distributed around the second floating plate. The length direction of the second elastic component is the same as the sliding direction of the second floating plate, and both ends of the second elastic component along its length direction are respectively connected to the second floating plate and the fixing plate. Preferably, the plurality of second elastic components are respectively connected to both ends of the second floating plate along the width direction of the battery pack, and the length direction of the plurality of second elastic components is the same as the thickness direction of the battery pack, so that the second floating plate slides along the thickness direction of the battery pack through the plurality of second elastic components. And / or, the second floating plate and / or the fixed plate has a plurality of second positioning portions, the plurality of second positioning portions correspond one-to-one to the plurality of second elastic components, the second positioning portions are extended along the length direction of the corresponding second elastic components, and the ends of the second elastic components are sleeved on the second positioning portions.

8. The quick-connecting device according to claim 1, characterized in that, The liquid-cooled connector includes a mounting seat, a movable plate, a plurality of third elastic members and at least one connector, wherein the connector is connected to the movable plate and plugged into the battery-end liquid-cooled connector, the mounting seat is connected to the second floating mechanism, the mounting seat has an active cavity therein, the movable plate and the plurality of third elastic members are all located in the active cavity, and the two ends of the third elastic member are respectively connected to the movable plate and the mounting seat, so that the movable plate is movably connected to the mounting seat through the third elastic member.

9. The quick-connecting device according to claim 1, characterized in that, The quick-plug connection device further includes a detection component, which is disposed through the second floating mechanism and is used to detect whether the liquid-cooling connector is in place with the battery-end liquid-cooling connector; Preferably, the number of the liquid cooling connectors is two, the electrical connector and the two liquid cooling connectors are arranged at intervals along the width direction of the battery pack, and the two liquid cooling connectors are arranged at both ends of the electrical connector, the two liquid cooling connectors are connected, and the corresponding battery end liquid cooling connectors are plugged to form a liquid cooling circulation path; The number of the detection components is two, and the two detection components are respectively arranged on the second floating mechanism corresponding to the two liquid-cooling connectors; And / or, the detection component includes a detection part and a telescopic part, and the telescopic part can abut against the battery pack and move in a direction opposite to the plug-in direction during the plug-in process of the liquid-cooling connector and the battery-end liquid-cooling connector, so that the sensing part on the telescopic part moves therewith until it is sensed by the detection part to confirm that the liquid-cooling connector and the battery-end liquid-cooling connector are in place.

10. The quick-connecting device according to claim 1, characterized in that, The quick-connection device further comprises a base and a support plate which are hinged to each other, the fixing plate is slidably arranged on the support plate, and the support plate is used to carry the battery pack and can perform a downward flipping movement relative to the base under the action of the gravity of the battery pack. The quick-plug connection device also includes a linkage mechanism, which is arranged between the base and the support plate, and includes an elastic member and a driving member, wherein the first end of the elastic member is fixed to a side where the support plate and the base are hinged, the second end of the elastic member is hinged to the first end of the driving member, and the middle of the elastic member is also connected to the bottom of the fixing plate, and the second end of the driving member is hinged to the position of the support plate for carrying the battery pack; The support plate flips relative to the base under the action of the gravity of the battery pack to drive the driving member to rotate relative to the support plate with its second end as the center, so that the distance from the second end of the driving member to the elastic member gradually decreases, and the first end of the driving member drives the elastic member to extend and retract to drive the fixing plate to slide, so that the electrical connector is plugged into the battery end electrical connector and the liquid cooling connector is plugged into the battery end liquid cooling connector; Preferably, the linkage mechanism further comprises a limiting member, which is connected to the support plate and can abut against the driving member when the battery pack is not placed on the support plate, so as to maintain an acute angle between the driving member and the elastic member; And / or, the linkage mechanism also includes a fixing member, which is connected to the side wall of the base and is located above the rolling member at the hinge of the first end of the driving member and the second end of the elastic member in the vertical direction, so that the rolling member is always located between the base and the support plate.

11. The quick-connecting device according to claim 10, characterized in that, The quick-connection device further comprises a first reinforcement component, which is disposed on the fixing plate; And / or, the quick-connect connection device further includes a second reinforcement component, and the second reinforcement component is arranged on the support plate.

12. The quick-connecting device according to claim 11, wherein, The first reinforcing assembly includes a first reinforcing plate, the fixing plate includes a first connecting plate for mounting the electrical connector and the liquid-cooling connector and a second connecting plate connected to the first connecting plate and the supporting plate, the first reinforcing plate is arranged on a side of the first connecting plate away from the electrical connector and the liquid-cooling connector, and is connected to the first connecting plate and the second connecting plate respectively; And / or, the first reinforcement assembly includes a second reinforcement plate, the fixing plate includes a first connecting plate for mounting the electrical connector and the liquid cooling connector and a second connecting plate connected to the first connecting plate and the support plate, the second reinforcement plate is arranged on the lower surface of the second connecting plate, and the second reinforcement plate has a flange extending in a direction away from the second connecting plate.

13. The quick-connecting device according to claim 11, characterized in that, The second reinforcement assembly includes a third reinforcement plate, which is disposed on the lower surface of the support plate in the carrying area of ​​the battery pack and has a bent edge extending in a direction away from the support plate; Preferably, the second reinforcement assembly further comprises a fourth reinforcement plate, both ends of which are respectively connected to the bending edge and the support plate and are used to connect to the connecting portion of the fixing plate; And / or, the support plate has a folded portion at an edge facing the battery pack, and a gap that cooperates with the side wall of the base is provided between the folded portion and the third reinforcing plate.

14. A battery holder, characterized in that, It comprises a quick-connection device as claimed in any one of claims 1 to 13.

15. An electric vehicle, characterized in that, It comprises a quick-connection device as claimed in any one of claims 1 to 13.

Images