Quick-plug connecting device, battery rack and electric automobile

Abstract

The utility model 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 utility model relates to a quick-plug connection device, a battery rack and an electric vehicle. Background Art

[0002] The installation methods of existing electric vehicle battery packs are generally divided into fixed and replaceable types. Fixed battery packs are generally fixed on electric vehicles, and the electric vehicle is directly used as the charging object during charging. Replaceable battery packs are generally fixed on electric vehicles in a movable installation manner, and electric vehicles can go to battery swap stations to replace battery packs. Generally speaking, when the battery pack on an electric vehicle is low on power, the low-power battery pack can be removed and replaced with a new fully-charged battery pack through the battery swap equipment in the battery swap station. Among them, the removed low-power battery pack will be transported to the charging warehouse of the battery swap station for charging and storage.

[0003] In order to charge the battery pack in the charging compartment, an electrical connector is installed and plugged into the battery end electrical connector on the battery pack to charge the battery pack; in order to cool the battery pack while charging, a liquid cooling connector is installed in the charging compartment, and the connector of the liquid cooling connector is plugged into the cooling tube in the battery pack to achieve thermal balance of the battery pack through the circulation of the coolant. However, the battery pack needs to be plugged into the liquid cooling connector and the electrical connector at the same time. During the plugging process, it is inevitable that some connectors are not plugged into place, resulting in unstable electrical and liquid cooling connections, which may cause disconnection and poor safety and stability. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the battery pack is not properly plugged into the liquid cooling connector and the electrical connector at the same time, resulting in unstable electrical connection and liquid cooling connection, which may lead to disconnection and poor safety and stability. A quick-plug connection device, a battery rack and an electric vehicle are provided.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A quick-plug connection device is used to connect to a battery-end electrical connector and a battery-end liquid-cooling connector on a battery pack. The quick-plug connection device includes a fixed 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 fixed plate. The electrical connector is connected to the first floating mechanism and plugged into the battery-end electrical connector. The liquid-cooling connector is connected to the second floating mechanism and plugged into the battery-end liquid-cooling connector.

[0007] In the present scheme, the above-mentioned structural form is adopted, and the electrical connector is floated and connected on the fixed plate through the first floating mechanism, so that even if there is a certain deviation between the electrical connector and the battery end electrical connector of the battery pack, they can be docked, thereby improving the plug-in success rate between the quick-plug connection device and the battery pack; the quick-plug connection device is plugged into each other with the battery end liquid-cooled connector on the battery pack through the liquid-cooled connector, and the liquid-cooled connector is floated and connected on 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 end liquid-cooled connector of the battery pack, they can be docked, thereby improving the plug-in success rate between the quick-plug connection device and the battery pack; at the same time, the electrical connector and the liquid-cooled connector eliminate the position error between each other when they are plugged in at the same time, effectively avoiding the occurrence of partial non-insertion, achieving simultaneous plug-in in the plug-in process, and high connection stability during use, effectively avoiding loose connection, greatly improving the safety and stability of the quick-plug 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 the first elastic component is connected to the first floating plate and the fixed plate at both ends along its length direction, respectively.

[0009] In the present solution, the above-mentioned structural form is adopted, and multiple first elastic components are distributed around the first floating plate, so that the first floating plate is subjected to the elastic force of the first elastic components around, ensuring that the first floating plate can move around on the fixed plate, thereby driving the electrical connector to float around together, so that during the plugging process, the battery end electrical connector of the battery pack and the electrical connector can be docked even if there is a certain deviation between them, thereby improving the plugging success rate between the electrical connector and the battery end electrical connector on the battery pack, and at the same time, the floating connection method can effectively avoid abnormalities such as electrical connection failure or burning caused by loose connection, thereby improving the safety and stability of the electrical connection of the quick-plug 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 can slide along the width direction of the battery pack through the plurality of first elastic members.

[0011] In this solution, the above-mentioned structural form is adopted, and the two first elastic members respectively exert force on the two ends of the first floating plate to realize the sliding of the first floating plate 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, and achieve high sliding stability. At the same time, by arranging the two first elastic members and the first floating plate along the width direction of the battery pack, the overall height of the quick-plug connection device is controlled, effectively reducing the occupied space in the height direction, and realizing 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 four corners of the first floating plate.

[0013] In this solution, the above-mentioned structural form is adopted, and the four first elastic members respectively act on the four corners of the first floating plate, which effectively avoids the first floating plate from being offset and misaligned during the sliding process, and further improves the stability of the quick-plug 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 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.

[0015] In this solution, the above-mentioned structural form is adopted, and multiple second elastic members respectively act on the two ends of the first floating plate to realize the sliding of the first floating plate along the thickness direction of the battery pack, so that the electrical connection can also move with the first floating plate in the thickness direction of the battery pack, thereby making the electrical connection have more fault tolerance when docking with the battery end electrical connector of the battery pack, further improving the success rate, and achieving high sliding stability. At the same time, multiple 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-plug connection device is controlled, effectively reducing the occupied space in the height direction, and realizing the installation of more battery packs.

[0016] Preferably, the first floating plate and / or the fixed plate has a plurality of first positioning portions, the plurality of first positioning portions correspond one-to-one to the plurality of first elastic components, the first positioning portions are extended along the length direction of the corresponding first elastic components, and the ends of the first elastic components are sleeved on the first positioning portions.

[0017] In the present solution, the above-mentioned structural form is adopted, and the first positioning column makes the installation and connection of the first elastic component very convenient and the installation accuracy is high; at the same time, it can effectively avoid the displacement and dislocation phenomenon of the first elastic component during the deformation process, and further improve the structural stability and installation alignment efficiency of the quick-plug connection device.

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

[0019] In this solution, the above-mentioned structural form is adopted, and the first avoidance hole plays an avoidance role, effectively avoiding interference between the first floating plate and / or the fixed plate and the first elastic component, thereby ensuring the installation and positioning of the first elastic component. At the same time, the first elastic component and the first positioning portion are both arranged in the first avoidance hole, without occupying additional space, and achieving a more compact structure.

[0020] Preferably, 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 the two ends of the second elastic component along its length direction are respectively connected to the second floating plate and the fixed plate.

[0021] In the present solution, the above-mentioned structural form is adopted, and multiple second elastic components are distributed around the second floating plate, so that the second floating plate is subjected to the elastic force of the second elastic components around, ensuring that the second floating plate can move around on the fixed plate, thereby driving the liquid-cooling connector to float around together. During the plug-in process, the liquid-cooling connector at the battery end of the battery pack and the liquid-cooling connector can be docked even if there is a certain deviation between them, thereby improving the plug-in success rate between the liquid-cooling connector and the liquid-cooling connector at the battery end on the battery pack, and at the same time achieving no leakage during the plug-in process, and effectively avoiding the loose connection of the liquid-cooling connector, greatly improving the stability of the quick-plug connection device and extending its service life.

[0022] Preferably, the plurality of second elastic components are respectively connected to the two 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 can slide along the thickness direction of the battery pack through the plurality of second elastic components.

[0023] In this solution, the above-mentioned structural form is adopted, and multiple second elastic components respectively exert force on the two ends of the second floating plate to realize the sliding of the second floating plate along the thickness direction of the battery pack, and achieve high sliding stability. At the same time, multiple second elastic components are distributed at both ends of the second floating plate along the width direction of the battery pack, so that the overall height of the quick-plug connection device is controlled, effectively reducing the occupied space in the height direction, and realizing the installation of more battery packs.

[0024] Preferably, 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.

[0025] In the present solution, the above-mentioned structural form is adopted, and the second positioning column makes the installation and connection of the second elastic component very convenient and the installation accuracy is high; at the same time, it can effectively avoid the displacement and dislocation phenomenon of the second elastic component during the deformation process, and further improve the structural stability and installation alignment efficiency of the quick-plug connection device.

[0026] Preferably, the liquid-cooled connector includes a mounting seat, a movable plate, a plurality of third elastic members and at least one connector, 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 a movable cavity, the movable plate and the plurality of third elastic members are all located in the movable 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.

[0027] In this solution, the above-mentioned structural form is adopted, and the movable cavity will limit the movable plate and the third elastic member to ensure that the movable plate moves stably in the movable cavity, effectively avoiding the connector from being offset and misaligned during use, and improving the stability of the quick-plug connection device. At the same time, the movable plate is movably connected in the movable cavity through multiple third elastic members, so that the connector can follow and adjust its position in the second floating mechanism during the plug-in process, further eliminating the deviation between the battery-end liquid-cooled connector and the liquid-cooled connector of the battery pack and achieving docking, thereby further improving the fault tolerance and plug-in success rate between the liquid-cooled connector and the battery-end liquid-cooled connector on the battery pack, and achieving no leakage during the plug-in process, and effectively avoiding the loose connection of the liquid-cooled connector, greatly improving the stability of the quick-plug connection device and extending its service life.

[0028] Preferably, the quick-plug connection device further comprises a detection component, which is passed 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.

[0029] In the present solution, the above-mentioned structural form is adopted, and the plug-in status of the liquid-cooling connector can be detected by the detection component, thereby detecting whether the liquid-cooling connector and the liquid-cooling connector at the battery end are in place, effectively avoiding leakage caused by problems such as incorrect plug-in or improper plug-in, and further improving the safety and stability of the quick-plug 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] 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 fixed 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.

[0038] In the present solution, the above-mentioned structural form is adopted. Under the action of gravity of the battery pack, the support plate can be flipped relative to the base with the connection between the support plate and the base as the rotation axis, and the electrical connector and the liquid cooling connector are driven 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 insertion 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 can drive the elastic member to expand and contract. Since the elastic member has a certain elastic potential energy when it is in the expanded state, when the battery pack is taken out from the support plate, the elastic member will return to its original state. In this process In the embodiment, the second end of the elastic member reacts to the first end of the driving member, so that the driving member still rotates relative to the support plate with its second end as the center, thereby allowing 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 to the first end edge in the width direction of the support plate, and the second end is connected to the driving member and is located at the second end position in the width direction of the support plate. When the support plate is flipped relative to the base, compared with directly vertically arranging the rebound member between the support plate and the base, this method can make the elastic member have greater elastic potential energy when it is extended and contracted, and it is more convenient to promote the support plate to return to its original position relative to the base.

[0039] 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;

[0040] 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.

[0041] In this solution, the above-mentioned structural form is adopted, and when no battery pack is placed on the support plate, the limiting member is used to abut against the driving member, so that the angle between the driving member and the elastic member is always kept at an acute angle, thereby ensuring the reliability of repeated use of the flip connection device.

[0042] In addition, when the support plate is restored to its original position relative to the base, the fixing member is used to limit the rolling member, so as to prevent the rolling member from being separated from between the base and the support plate during the restoration process due to the large elastic potential energy of the elastic member, thereby ensuring the stability of the support plate relative to the base when it is restored to its original position. When the fixing member is set to limit the rolling member, the preferred setting is to make the fixing member located above the rolling member, with a certain gap between the two, so as to prevent the fixing member from affecting the rolling of the rolling member. At the same time, the gap between the two should be reduced as much as possible according to the actual situation, so as to ensure that when the support plate is restored to its original position relative to the base, the distance that the rolling member is separated from the base is too large.

[0043] Preferably, the quick-connection device further comprises a first reinforcement component, and the first reinforcement component is arranged on the fixing plate;

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

[0045] In the present solution, the above-mentioned structural form is adopted, and the first reinforcing component is arranged on the fixing plate, so that the fixing plate has a reinforcing effect, the overall structural strength of the quick-connect connection device is improved, and the safety and stability are higher.

[0046] In addition, by arranging the second reinforcing component on the support plate, the support plate is reinforced, thereby improving the overall structural strength of the quick-connect connection device and achieving higher safety and stability.

[0047] Preferably, 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;

[0048] 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.

[0049] In the present solution, the above-mentioned structural form is adopted, and the first reinforcing plate is arranged on the side of the first connecting plate away from the electrical connector and the liquid-cooling connector, thereby avoiding unnecessary interference of the first reinforcing plate with the electrical connector and the liquid-cooling connector, and will not affect the connection between the electrical connector and the liquid-cooling connector and 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 solid support for the installation, and improve the overall structural strength of the quick-plug connection device.

[0050] In addition, the second reinforcing plate makes the second connecting plate have high structural strength and effectively strengthens the fixing plate, thereby improving the overall structural strength of the quick-connection device and making it safer and more stable. At the same time, it optimizes space utilization and ensures compact installation of the quick-connection device in a limited space.

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

[0052] In this solution, the above-mentioned structural form is adopted, and the third reinforcing plate is used to effectively strengthen the support plate, thereby improving the overall structural strength of the quick-plug connection device, effectively preventing the support plate from being bent or broken during the process of carrying the battery pack, and preventing the support plate from being unable to flip relative to the base and unable to drive the fixed plate and the electrical connector and liquid cooling connector thereon to slide relative to each other to plug with the battery-end electrical connector and battery-end liquid cooling connector. At the same time, space utilization is optimized, ensuring the compact installation of the quick-plug connection device in a limited space.

[0053] 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;

[0054] 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.

[0055] In this solution, the above-mentioned structural form is adopted, and the fourth reinforcing plate is connected to the bending edge, the support plate and the fixing plate, which effectively strengthens the overall structural connection strength, further prevents the support plate from being bent or broken during the process of carrying the battery pack, and has higher safety and stability. At the same time, the fourth reinforcing plate is arranged on the lower surface of the support plate, which optimizes the space utilization and ensures the compact installation of the quick-plug connection device in a limited space.

[0056] In addition, the folding portion strengthens the strength of the support plate, achieving higher stability; and the folding portion extends downwardly at an angle relative to the surface of the support plate, and the folding portion can overlap 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 tighter, and the quick-plug connection device is more stable. At the same time, the space provided by the gap can be used to weld the third reinforcing plate to the lower surface of the support plate to ensure the stability of the connection between the two.

[0057] A battery rack comprises the quick-plug connection device as described above.

[0058] In the present scheme, the above-mentioned structural form is adopted, and the electrical connector and the liquid-cooling connector are respectively floatingly connected through the first floating mechanism and the second floating mechanism, so that the battery-end electrical connector and the electrical connector of the battery pack, as well as the battery-end liquid-cooling connector and the liquid-cooling connector of the battery pack can be docked even if there is a certain deviation, thereby improving the success rate of plugging between the quick-plug connection device and the battery pack; at the same time, the electrical connector and the liquid-cooling connector eliminate the position error between each other when they are plugged in at the same time, effectively avoiding the situation where part of the connector is not plugged in, and achieving simultaneous plugging in during the plugging process, and the connection stability is high during use, which effectively avoids loose connection, greatly improves the stability of the battery rack, and extends the service life.

[0059] An electric vehicle comprises the quick-plug connection device as described above.

[0060] In the present solution, the above-mentioned structural form is adopted, and the electric connector and the liquid-cooling connector are respectively floatingly connected through the first floating mechanism and the second floating mechanism, so that the battery-end electric connector and the electric connector of the battery pack, as well as the battery-end liquid-cooling connector and the liquid-cooling connector of the battery pack can be docked even if there is a certain deviation, thereby improving the success rate of plugging between the quick-plug connection device and the battery pack; at the same time, the electric connector and the liquid-cooling connector eliminate the position error between each other when they are plugged in at the same time, effectively avoiding the situation where part of the connector is not plugged in, and achieving simultaneous plugging in during the plugging process, and the connection stability is high during use, which effectively avoids loose connection, greatly improves the stability of the electric vehicle, and extends its service life.

[0061] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0062] The positive and progressive effects of the utility model are:

[0063] The quick-plug connection device, battery rack and electric vehicle of the utility model respectively realize floating connection of the electric connector and the liquid-cooling connector through the first floating mechanism and the second floating mechanism, so that the electric connector at the battery end of the battery pack and the liquid-cooling connector at the battery end of the battery pack can be docked even if there is a certain deviation, thereby improving the success rate of plugging between the quick-plug connection device and the battery pack; at the same time, the electric connector and the liquid-cooling connector eliminate the position error between each other when being plugged in at the same time, effectively avoiding the situation where part of the connector is not plugged in, and realizing simultaneous plugging in during the plugging process, and the connection stability is high during use, which effectively avoids loose connection, greatly improves the stability of the quick-plug connection device, and extends the service life. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0065] Figure 2 It is a structural schematic diagram of a quick-plug connection device according to an embodiment of the utility model.

[0066] Figure 3 This is a partial structural schematic diagram of a quick-connection device according to an embodiment of the utility model, in which the base is omitted.

[0067] Figure 4 It is a front structural schematic diagram of a fixing plate, an electrical connector, and a liquid cooling connector according to an embodiment of the utility model.

[0068] Figure 5 It is a rear structural schematic diagram of a fixing plate, an electrical connector, and a liquid cooling connector according to an embodiment of the utility model.

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

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

[0071] Figure 8 It is a partial front structural schematic diagram of a fixing plate, an electrical connector, and a liquid cooling connector according to an embodiment of the utility model.

[0072] Fig. 9 It is a schematic structural diagram of the detection component and the second floating mechanism of an embodiment of the utility model.

[0073] Fig.10 It is a schematic structural diagram of a battery pack according to an embodiment of the utility model.

[0074] Fig.11The figure is a schematic diagram of the top structure of the support plate according to the embodiment of the utility model.

[0075] Fig.12 It is a bottom view structural schematic diagram of the support plate of an embodiment of the utility model.

[0076] Fig.13 for Fig.12 A partial enlarged schematic diagram of part A.

[0077] Fig.14 It is a partial enlarged schematic diagram of the support plate of the embodiment of the utility model. DETAILED DESCRIPTION

[0078] The present invention will be described more clearly and completely 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] like Figures 1 to 14 As shown, the embodiment of the utility model discloses a battery rack, which includes a quick-plug connection device 100, which is used to connect with the battery end electrical connector 201 and the battery end liquid cooling connector 202 on the battery pack 200, and the quick-plug connection device 100 is electrically connected with the battery end electrical connector 201 on the battery pack 200, so as to charge the battery pack 200, and the quick-plug connection device 100 and the battery end liquid cooling connector 202 on the battery pack 200 are plugged into each other, and the cooling medium can pass through the quick-plug connection device 100 and the battery end liquid cooling connector 202 in sequence to the battery pack 200, so as to cool the battery pack 200 and avoid the temperature of the battery pack 200 being too high and affecting the performance and service life of the battery pack 200. Among them, a plurality of battery compartments are provided on the battery rack, and a quick-plug connection device 100 is provided in each battery compartment.

[0080] like Figure 1 , Figure 2 and Fig.10As shown, the quick-plug connection device 100 includes an electrical connector 1, a liquid-cooled connector 2, a fixed 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 fixed plate 3. The electrical connector 1 is connected to the first floating mechanism 4 and plugged into the battery-end electrical connector 201. The liquid-cooled connector 2 is connected to the second floating mechanism 5 and plugged into the battery-end liquid-cooled connector 202. The quick-plug connection device 100 realizes electrical connection by plugging the electrical connector 1 with the battery-end electrical connector 201 on the battery pack 200. The first floating mechanism 4 enables the electrical connector 1 to be floatingly connected on the fixed plate 3, so that the electrical connector 1 and the battery-end electrical connector 201 of the battery pack 200 can be docked even if there is a certain deviation between them, thereby improving the plug-in success rate between the quick-plug connection device 100 and the battery pack 200. The quick-plug connection device 100 realizes electrical connection by plugging the electrical connector 2 with the battery-end liquid-cooled connector 202 on the battery pack 200 through the liquid-cooled connector 2. The second floating mechanism 5 enables the liquid-cooled connector 2 to be It is now floatingly connected on the fixed plate 3, so that the liquid-cooling connector 2 and the battery-end liquid-cooling connector 202 of the battery pack 200 can be docked even if there is a certain deviation between them, thereby improving the success rate of plugging between the quick-plug connection 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 when they are plugged in at the same time, effectively avoiding the situation where part of the connector is not plugged in, and achieving simultaneous plugging in during the plugging process. In addition, the connection stability is high during use, which effectively avoids loose connection, greatly improves the safety and stability of the quick-plug connection device 100, and extends its service life.

[0081] like Figure 2 , Figure 4 , Figure 7 , Figure 8 and Fig.10As shown, the first floating mechanism 4 includes a first floating plate 41 and a plurality of first elastic components 42. The electrical connector 1 is connected to the first floating plate 41. The plurality of first elastic components 42 are distributed around the first floating plate 41. The length direction of the first elastic component 42 is the same as the sliding direction of the first floating plate 41, and the two ends of the first elastic component 42 along the length direction are respectively connected to the first floating plate 41 and the fixed plate 3. The plurality of first elastic components 42 are distributed around the first floating plate 41, so that the first floating plate 41 is subjected to the elastic force of the first elastic components 42 around the first floating plate 41, so that the first floating plate 41 can move around on the fixed plate 3, thereby driving the electrical connector 1 to float around together. During the plug-in process, the battery-end electrical connector 201 of the battery pack 200 can be docked with the electrical connector 1 even if there is a certain deviation, thereby improving the plug-in success rate between the electrical connector 1 and the battery-end electrical connector 201 on the battery pack 200. At the same time, the floating connection mode can effectively avoid abnormalities such as electrical connection failure or burning caused by loose connection, thereby improving the safety and stability of the electrical connection of the quick-plug connection device 100.

[0082] The plurality of first elastic components 42 include a plurality of first elastic members 421, and the plurality of first elastic members 421 are respectively connected to the two 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 members 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 members 421. The two first elastic members 421 respectively exert force on the two ends of the first floating plate 41 to achieve 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 along the width direction of the battery pack 200 with the first floating plate 41, and achieve high sliding stability. At the same time, in the battery rack, multiple battery packs 200 are stacked in the height direction and electrically connected and cooled through multiple quick-plug connection devices 100. Two first elastic members 421 and a first floating plate 41 are arranged along the width direction of the battery pack 200, so that 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 of more battery packs 200.

[0083] There are four first elastic members 421, and the four first elastic members 421 are respectively close to the four corners of the first floating plate 41. The four first elastic members 421 respectively exert force on the four corners of the first floating plate 41, effectively avoiding the first floating plate 41 from being offset and misaligned during the sliding process, and further improving the stability of the quick-connection device 100. Of course, in other embodiments, the number and setting positions of the first elastic members 421 can be arranged according to needs and space.

[0084] The first elastic member 421 may be a spring, or an elastic rubber or an elastic member with a deformation space, so that the first elastic member 421 has good elastic effect and high stability; meanwhile, the structure is simple and the cost is low.

[0085] like Figure 4 , Figure 7 , Figure 8 and Fig.10 As shown, the plurality of first elastic members 42 include a plurality of second elastic members 422, and the plurality of second elastic members 422 are respectively connected to the two 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 exert force on the two ends of the first floating plate 41 to achieve 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 with the first floating plate 41 in the thickness direction of the battery pack 200, thereby making the electrical connection have more fault tolerance when docking with the battery end electrical connector 201 of the battery pack 200, further improving the success rate, and achieving high sliding stability. At the same time, multiple 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, multiple battery packs 200 are stacked in the height direction and electrically connected and cooled through multiple quick-plug connection devices 100, so that 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 of more battery packs 200.

[0086] There are two second elastic members 422, and the two second elastic members 422 are respectively located at the two ends of the first floating plate 41. The second elastic member 422 can be a spring, or an elastic rubber or an elastic member with a deformation space, so that the second elastic member 422 has a 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 fixed plate 3 have a plurality of first positioning portions 411, which correspond to the plurality of first elastic components 42 one by one. The first positioning portions 411 are extended along the length direction of the corresponding first elastic components 42, and the ends of the first elastic components 42 are sleeved on the first positioning portions 411. The first floating plate 41 and / or the fixed plate 3 are connected to the ends of the first elastic components 42 through the first positioning portions 411, and the first positioning columns make it very convenient to install and connect the first elastic components 42, and the installation accuracy is high; at the same time, it can effectively avoid the first elastic components 42 from being offset and misaligned during the deformation process, and further improve the structural stability and installation alignment efficiency of the quick-connection 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 component 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 component 42, and ensuring the installation and positioning of the first elastic component 42. At the same time, the first elastic component 42 and the first positioning portion 411 are both arranged in the first avoidance hole 412, without occupying additional space, and achieving a more compact structure. In this embodiment, the first floating plate 41 and / or the fixed plate 3 are provided with a plurality of first positioning portions 411. 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 components 52. The liquid cooling connector 2 is connected to the second floating plate 51. The plurality of second elastic components 52 are distributed around the second floating plate 51. The length direction of the second elastic component 52 is the same as the sliding direction of the second floating plate 51, and the two ends of the second elastic component 52 along its length direction are respectively connected to the second floating plate 51 and the fixed plate 3. By distributing a plurality of second elastic components 52 around the second floating plate 51, the second floating plate 51 is subjected to elastic force around the second elastic components 52, thereby ensuring that the second floating plate 51 can move around on the fixed plate 3, thereby driving the liquid cooling connector 2 to float around together. During the plug-in process, the battery-end liquid cooling connector 202 of the battery pack 200 and the liquid cooling connector 2 can be docked even if there is a certain deviation, thereby improving the plug-in success rate between the liquid cooling connector 2 and the battery-end liquid cooling connector 202 on the battery pack 200, and at the same time achieving no leakage during the plug-in process, and effectively avoiding the loose connection of the liquid cooling connector 2, thereby greatly improving the stability of the quick-plug connection device 100 and extending its service life.

[0090] Specifically, in this embodiment, the plurality of second elastic components 52 are respectively connected to the two ends of the second floating plate 51 along the width direction of the battery pack 200, and the length direction of the plurality of second elastic components 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 components 52. The plurality of second elastic components 52 respectively exert force on the two ends of the second floating plate 51 to achieve the sliding of the second floating plate 51 along the thickness direction of the battery pack 200, and achieve high sliding stability. At the same time, the plurality of second elastic components 52 are distributed at the two ends of the second floating plate 51 along the width direction of the battery pack 200, and the plurality of battery packs 200 are stacked in the height direction in the battery rack and are electrically connected and cooled through the plurality of quick-plug connectors 100, so that the overall height of the quick-plug connector 100 is controlled, effectively reducing the occupied space in the height direction, and realizing the installation of more battery packs 200.

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

[0092] The second floating plate 51 and / or the fixed plate 3 are provided with a plurality of second positioning portions 511, and the plurality of second positioning portions 511 correspond to the plurality of second elastic components 52 one by one. The second positioning portions 511 are extended along the length direction of the corresponding second elastic components 52, and the ends of the second elastic components 52 are sleeved on the second positioning portions 511. The second floating plate 51 and / or the fixed plate 3 are connected to the ends of the second elastic components 52 through the second positioning portions 511, and the second positioning columns make it very convenient to install and connect the second elastic components 52, and the installation accuracy is high; at the same time, it can effectively avoid the displacement and dislocation phenomenon of the second elastic components 52 during the deformation process, and further improve the structural stability and installation alignment efficiency of the quick-connection 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 component 52 and the second positioning portion 511, and the second elastic component 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 component 52, and ensuring the installation and positioning of the second elastic component 52. At the same time, the second elastic component 52 and the second positioning portion 511 are both arranged in the second avoidance holes 512, without occupying additional space, and achieving a more compact structure. In this embodiment, the second floating plate 51 and / or the fixed plate 3 are provided with a plurality of second positioning portions 511. The second floating plate 51 and the fixed plate 3 are provided with a plurality of second avoidance holes 512.

[0094] like Figure 7 , Figure 8 and Fig.10 As shown, the liquid-cooled connector 2 includes a mounting seat 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 plugged into the battery-end liquid-cooled connector 202. The mounting seat 21 is connected to the second floating mechanism 5. The mounting seat 21 has an active cavity. The movable plate 22 and the plurality of third elastic members 23 are all located in the active cavity. The two ends of the third elastic member 23 are respectively connected to the movable plate 22 and the mounting seat 21, so that the movable plate 22 is movably connected to the mounting seat 21 through the third elastic member 23. The mounting seat 21 is installed and connected to the second floating mechanism 5 and has an active cavity. The movable plate 22 is installed and connected in the active cavity of the mounting seat 21 through the third elastic member 23 to achieve floating connection, which will drive the connector 24 to float together. The active cavity will limit the movable plate 22 and the third elastic member 23 to ensure that the movable plate 22 moves stably in the active cavity, effectively avoiding the connector 24 from being offset and misaligned during use, and improving the stability of the quick-plug connection device. At the same time, the movable plate 22 is movably connected in the movable cavity through a plurality of third elastic members 23, and the connector 24 is installed and connected to the movable plate 22 and is used to be plugged in or disconnected with the battery-end liquid-cooling connector 202 on the battery pack 200. During the plug-in process, the connector 24 can follow and adjust the position of the second floating mechanism 5, further eliminating the deviation between the battery-end liquid-cooling connector 202 of the battery pack 200 and the liquid-cooling connector 2 and achieving docking, thereby further improving the fault tolerance and plug-in success rate between the liquid-cooling connector 2 and the battery-end liquid-cooling connector 202 on the battery pack 200, and achieving no leakage during the plug-in process, and effectively avoiding the loose connection of the liquid-cooling connector 2, which greatly improves the stability of the quick-plug connection device 100 and extends its service life. Among them, in Figure 7 and Figure 8 The cover plate on the mounting seat 21 and the sealing ring on the mounting seat 21 are omitted in the middle liquid-cooling connector 2 .

[0095] like Figure 2 and Figure 7 As shown, there are two liquid cooling connectors 2, the electrical connector 1 and the two liquid cooling connectors 2 are arranged at intervals along 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 connected, and the corresponding battery end liquid cooling connectors 202 are plugged in to form a liquid cooling circulation path. Each liquid cooling connector 2 has a connector 24, and the two connectors 24 are respectively connected to the inlet and outlet of the liquid cooling pipeline in the battery pack 200, so as to realize the circulation of the coolant into the battery pack 200 for cooling.

[0096] like Figure 5 , Fig. 9 and Fig.10 As shown, the quick-plug connection device 100 also includes a detection component 6, which is arranged in the second floating mechanism 5 and is used to detect whether the liquid-cooling connector 2 is in place with the battery-end liquid-cooling connector 202. The detection component 6 can detect the plugging status of the liquid-cooling connector 2, thereby detecting whether the liquid-cooling connector 2 is in place with the battery-end liquid-cooling connector 202, effectively avoiding leakage caused by problems such as misplugging or inadequate plugging, and further improving the safety and stability of the quick-plug connection device 100.

[0097] There are two detection components 6, 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 and the inlet and outlet of the liquid cooling pipeline in the battery pack 200, so as to ensure that the coolant is circulated and transported to 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 , Fig.11 and Fig.12As shown, the quick-plug connection device 100 also includes a base 7 and a support plate 8 that are hinged to each other, the fixing plate 3 can be slidably arranged on the support plate 8, and the support plate 8 is used to carry the battery pack 200 and can be flipped downward relative to the base 7 under the gravity of the battery pack 200. The quick-plug connection device 100 also includes a linkage mechanism 9, which is arranged 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 a side where the support plate 8 and the base 7 are hinged, and the second end of the elastic member 91 is hinged to the first end of the driving member 92. end, and the elastic member 91 is connected to the fixed plate 3, and the second end of the driving member 92 is hinged to the position of the support plate 8 for carrying the battery pack 200; the support plate 8 flips relative to the base 7 under the action of 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, so that 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 extend and retract to drive the fixed plate 3 to slide, so that the electrical connector 1 is plugged into the battery-end electrical connector 201 and the liquid-cooling connector 2 is plugged into the battery-end liquid-cooling connector 202.

[0102] Through the above arrangement, under the action of gravity of the battery pack 200, the support plate 8 can be flipped relative to the base 7 with its first end edge in the width direction as the rotation axis, and during the flipping process, the connection assembly is driven to dock with the battery pack 200, 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, the distance from the second end of the driving member 92 to the elastic member 91 can be gradually reduced, and the first end of the driving member 92 can drive the elastic member 91 to retract. Since the elastic member 91 has a certain elastic potential energy when it is in the retracted state, when the battery pack 200 is removed from the support plate 8, the elastic member 91 will return to its original state. The second end of the elastic member 91 reacts to 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, so that the support plate 8 can 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 is flipped relative to the base 7, compared with directly vertically arranging a rebound member between the support plate 8 and the base 7, this method can make the elastic member 91 have greater elastic potential energy when it is extended and retracted, and it 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. The elastic member 91 is fixed at the edge of the first end of the support plate 8 by using one end of the compression spring 911, 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 forked structure, and the rolling member 95 is arranged in the forked structure. The connecting rod 912 is simultaneously penetrated through the forked structure and the rolling member 95. Through this arrangement, the compression spring 911 is used to realize that the elastic member 91 can generate elastic potential energy when being stretched, and 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 forked structure, so that the rolling member 95 can be more conveniently accommodated in the forked structure, and the hinge between the driving member 92 and the elastic member 91 can also be better realized.

[0104] Among them, when the elastic member 91 is specifically composed of a compression spring 911 and a connecting rod 912, the fixing plate 3 is connected to the elastic member 91, specifically connected at the connection transition position between the compression spring 911 and the connecting rod 912, so that during the expansion and contraction of the elastic member 91, the fixing plate 3 is driven to slide on the support plate 8 and plug with 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 the base 7. At this time, the connecting rod 912 of the elastic member 91 drives the compression spring 911 to stretch, 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 plugging 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 plugging of the battery pack 200. However, it should be noted that when the structure of the elastic member 91 changes according to actual conditions, the connection position between the fixed plate 3 and the elastic member 91 may also change, as long as the elastic member 91 can drive the fixed plate 3 to slide on the support plate 8 and connect with the battery pack 200 during the extension and retraction process.

[0105] like Fig.11 , Fig.12 and Fig.13As shown, the linkage mechanism 9 also includes a limiting member 93, which 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 the angle between the driving member 92 and the elastic member 91 as an acute angle. Since the elastic potential energy of the elastic member 91 when stretched is large, if the battery pack 200 is removed from the support plate 8 at a fast speed, the elastic member 91 will retract at a fast speed, which is very likely to pull the driving member 92 so that the angle between the elastic member 91 and the driving member 92 becomes an obtuse angle. At this time, if the battery pack 200 is placed on the support plate 8 again, the driving member 92 can no longer cause the elastic member 91 to be stretched; in order to avoid this situation, the limiting member 93 is connected to the support plate 8, so that when the battery pack 200 is not placed on the support plate 8, the limiting member 93 is used to abut against the driving member 92, so as to always maintain the angle between the driving member 92 and the elastic member 91 as an acute angle, thereby ensuring the reliability of the repeated use of the flip connection device.

[0106] The linkage mechanism 9 also includes a fixing member 94, which is connected to the side wall of the base 7 and is located above the rolling member 95 at the hinge 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 arrangement, when the support plate 8 is restored to its original position relative to the base 7, the fixing member 94 is used to limit the rolling member 95, so as to avoid the rolling member 95 being separated from the base 7 and the support plate 8 due to the large elastic potential energy of the elastic member 91 during the restoration process, thereby ensuring the stability of the support plate 8 when it is restored to its original position relative to the base 7. When the fixing member 94 is set to limit the rolling member 95, the preferred arrangement is to make the fixing member 94 located above the rolling member 95, with a certain gap between the two, so as to avoid the fixing member 94 affecting the rolling of the rolling member 95, and at the same time, the gap between the two should be reduced as much as possible according to the actual situation, so as to ensure that the distance of the rolling member 95 from the base 7 is too large during the restoration process of the support plate 8 relative to the base 7. It should be noted that the fixing screw specifically used for the fixing member 94 in this embodiment has a threaded hole 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 in the direction of 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 fixing a fixing block on the inner wall of the base 7, and using the fixing block to limit the rolling member 95.

[0107] like Figure 5 As shown, the quick-connection device 100 further includes a first reinforcement component 10, which is disposed on the fixing plate 3. By arranging the first reinforcement component 10 on the fixing plate 3, the fixing plate 3 is reinforced, thereby improving the overall structural strength of the quick-connection device 100 and achieving higher safety and stability.

[0108] like Fig.11 , Fig.12 and Fig.14 As shown, the quick-connection device 100 further includes a second reinforcement component 11, which is disposed on the support plate 8. By arranging the second reinforcement component 11 on the support plate 8, the support plate 8 is reinforced, the overall structural strength of the quick-connection device 100 is improved, and the safety and stability are higher.

[0109] Specifically, Figure 5 As shown, the first reinforcing assembly 10 includes a first reinforcing plate 101, and 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 reinforcing plate 101 is arranged on the side of the first connecting plate 31 away from the electrical connector 1 and the liquid-cooling connector 2, and is connected to the first connecting plate 31 and the second connecting plate 32 respectively. The first reinforcing plate 101 is arranged on the side of the first connecting plate 31 away from the electrical connector 1 and the liquid-cooling connector 2, so as to avoid unnecessary interference of the first reinforcing plate 101 with the electrical connector 1 and the liquid-cooling connector 2, and will not affect the connection between the electrical connector 1 and the liquid-cooling connector 2 and the battery pack 200 on the other side of the first connecting plate 31. At the same time, the first reinforcing 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, so that the first reinforcing plate 101 can fully strengthen the strength of the fixing plate 3, provide a more solid support for installation, and improve the overall structural strength of the quick-plug connection device 100.

[0110] like Figure 5 and Figure 6 As shown, the first reinforcement assembly 10 includes a second reinforcement plate 102, the fixed plate 3 includes a first connection plate 31 for mounting the electrical connector 1 and the liquid-cooling connector 2 and a second connection plate 32 connected to the first connection plate 31 and connected to the support plate 8, the second reinforcement plate 102 is arranged on the lower surface of the second connection plate 32, and the second reinforcement plate 102 has a flange extending in a direction away from the second connection plate 32. By arranging the second reinforcement plate 102 on the lower surface of the second connection plate 32 and having a flange extending in a direction away from the second connection plate 32, the arrangement of the second reinforcement plate 102 makes the structural strength of the second connection plate 32 high, and effectively realizes the reinforcement effect on the fixed plate 3, thereby improving the overall structural strength of the quick-plug connection device 100, and having higher safety and stability. At the same time, the space utilization is optimized, ensuring the compact installation of the quick-plug connection device 100 in a limited space. In a preferred embodiment, in order to further improve the strength of the fixing plate 3 , a plurality of second reinforcing plates 102 may be provided, and the plurality of second reinforcing plates 102 are arranged side by side on the lower surface of the second connecting plate 32 along the width direction of the battery pack 200 .

[0111] like Fig.11 and Fig.12 As shown, the second reinforcement component 11 includes a third reinforcement plate 111, which is arranged on the lower surface of the support plate 8 carrying 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 strengthens the support plate 8, improves the overall structural strength of the quick-plug connection device 100, and effectively prevents the support plate 8 from being bent or broken during the process of carrying the battery pack 200, thereby preventing the support plate 8 from being unable to flip relative to the base 7 and being unable to drive the fixing plate 3 and the electrical connector 1 and the liquid-cooling connector 2 thereon to slide relative to each other to plug with the battery-end electrical connector 201 and the battery-end liquid-cooling connector 202. At the same time, space utilization is optimized, ensuring the compact installation of the quick-plug connection device 100 in a limited space.

[0112] like Fig.11 , Fig.12 and Fig.14 As shown, the second reinforcement assembly 11 also includes a fourth reinforcement plate 112, the two ends of which are respectively connected to the bending edge and the support plate 8 and are used to connect the connection portion 64 of the fixing plate 3. The fourth reinforcement plate 112 is connected to the bending edge, the support plate 8 and the fixing plate 3, which effectively strengthens the overall structural connection strength, further prevents the support plate 8 from being bent or broken during the process of carrying the battery pack 200, and has higher safety and stability. At the same time, the fourth reinforcement plate 112 is arranged on the lower surface of the support plate 8, which optimizes space utilization and ensures the compact installation of the quick-plug connection device 100 in a limited space.

[0113] like Fig.12 As shown, the edge of the support plate 8 facing the battery pack 200 has a folding portion 81 arranged at an angle with the support plate 8, and there is a gap between the folding portion 81 and the third reinforcing plate 111 that matches the side wall of the base 7, so that after the support plate 8 is flipped toward the base 7, the upward edge of the base 7 matches the gap, and the folding portion 81 overlaps the outer edge of the base 7. The strength of the support plate 8 is enhanced by the folding portion 81, and higher stability is achieved; and the folding portion 81 extends downwardly at an angle relative to the surface of the support plate 8, and the folding portion 81 can overlap 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 tighter, and the quick-plug connection device 100 is more stable. At the same time, since there is a gap between the third reinforcing plate 111 and the folding portion 81, the third reinforcing plate 111 can be welded to the lower surface of the support plate 8 through the space provided by the gap to ensure the stability of the connection between the two.

[0114] This embodiment also discloses an electric vehicle, which includes the above-mentioned quick-plug connection device 100. The battery pack 200 moves in a direction close to the quick-plug connection device 100, so that the battery-end electrical connector 201 and the battery-end liquid-cooling connector 202 on the battery pack 200 are plugged into each other with the electrical connector 1 and the liquid-cooling connector 2 on the quick-plug connection device 100. One action can complete the power connection and liquid-cooling connection between the quick-plug connection device 100 and the battery pack 200, which is conducive 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-cooled connector 2 on the quick-plug connection device 100 are floatingly connected to the fixed plate 3 through the first floating mechanism 4 and the second floating mechanism 5 respectively, so that the electrical connector 1, the liquid-cooled connector 2 and the battery pack 200 can be docked even if there is a certain deviation between them, thereby improving the success rate of plugging between the quick-plug connection device 100 and the battery pack 200; at the same time, the electrical connector 1 and the liquid-cooled connector 2 eliminate the position error between each other when they are plugged in at the same time, effectively avoiding the situation where part of the connector is not plugged in, and achieving simultaneous plugging in during the plugging process. In addition, the connection stability is high during use, which effectively avoids loose connection, greatly improves the safety and stability of the quick-plug connection device 100, and extends its service life.

[0115] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A quick-connection device, used to connect with a battery end electrical connector and a battery end liquid cooling connector on a battery pack, characterized in that: The quick-plug connection device includes a fixed plate, an electrical connector, a liquid-cooled 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 fixed plate. The electrical connector is connected to the first floating mechanism and plugged into the battery-end electrical connector. The liquid-cooled connector is connected to the second floating mechanism and plugged into the battery-end liquid-cooled connector.

2. The quick-connection 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 the first elastic component is connected to the first floating plate and the fixed plate at both ends along its length direction.

3. The quick-connection device according to claim 2, characterized in that: The plurality of first elastic components include a plurality of first elastic members, and 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-connection 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 four corners of the first floating plate.

5. The quick-connection device according to claim 2 or 3, characterized in that: The plurality of first elastic components include a plurality of second elastic members, and 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-connection device according to claim 2, characterized in that: The first floating plate and / or the fixed plate has a plurality of first positioning portions, the plurality of first positioning portions correspond one-to-one to the plurality of first elastic components, the first positioning portions are extended along the length direction of the corresponding first elastic components, and the ends of the first elastic components are sleeved on the first positioning portions.

7. The quick-connection device according to claim 6, characterized in that: The first floating plate and / or the fixed plate has a plurality of first avoidance holes, and the first elastic component and the first positioning portion are respectively located in corresponding first avoidance holes.

8. The quick-connection 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 the two ends of the second elastic component along the length direction are respectively connected to the second floating plate and the fixed plate.

9. The quick-connection device according to claim 8, characterized in that: The plurality of second elastic components are respectively connected to two 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.

10. The quick-connection 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.

11. The quick-connection device according to claim 1, characterized in that: The quick-plug connection device also includes a detection component, which is inserted into the second floating mechanism and is used to detect whether the liquid-cooling connector is in place with the battery-end liquid-cooling connector.

12. The quick-connection device according to claim 11, characterized in that: 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.

13. The quick-connection 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 fixed 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.

14. The quick-connection device according to claim 13, characterized in that: 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; 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.

15. The quick-connection device according to claim 13, 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.

16. The quick-connection device according to claim 15, characterized in that: 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.

17. The quick-connection device according to claim 15, characterized in that: The second reinforcing assembly includes a third reinforcing plate, which is disposed on the lower surface of the supporting plate in the carrying area of ​​the battery pack and has a bent edge extending in a direction away from the supporting plate.

18. The quick-connection device according to claim 17, characterized in that: The second reinforcement assembly further includes a fourth reinforcement plate, two 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.

19. A battery rack, characterized in that: It comprises a quick-connection device as claimed in any one of claims 1 to 18.

20. An electric vehicle, characterized in that: It comprises a quick-connection device as claimed in any one of claims 1 to 18.

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