Vehicle battery replacement device, dual floating hoist battery swapping station and battery replacement system

Abstract

The present application provides a vehicle battery replacement device, a double floating hoist battery swapping station, and a battery replacement system. The vehicle battery replacement device comprises a battery module, a first floating structure, and a fixing device; the fixing device is configured to fix the battery module onto a stringer of a vehicle; the fixing device comprises a fixing substrate; the first floating structure is provided between the battery module and the fixing substrate; and the first floating structure is configured to mitigate the vibration amplitude of the battery module. The vehicle battery replacement device provided in the present application has a first floating structure provided between the battery module and the fixing substrate, and the floating structure is a floating connection between the battery module and the vehicle; and can effectively mitigate the vibration amplitude of the battery module during vehicle driving and mitigate the impact on the battery module during the battery replacement process.

Description

Technology Field

[0001] The present application relates to the field of battery replacement technology, and in particular to a vehicle battery replacement device, a double floating hoist battery swapping station, and a battery replacement system. Background Technology

[0002] In recent years, new energy vehicles have been developing rapidly. While electric vehicles (EVs), which rely on batteries for propulsion, offer the advantages of being emission-free and quiet, their adoption in the profitability-oriented commercial vehicle sector has been hindered by the persistent historical challenges of driving range instability and long charging times. However, as battery swapping technology for passenger cars is applied and advanced, this technology is gradually being adopted in the commercial vehicle sector.

[0003] The existing solutions for battery replacement modes in commercial vehicles currently have the following problems. Specifically, if the battery box is positioned using only positioning pins in the three directions of X, Y, and Z at the bottom, there is no locking mechanism. Furthermore, because commercial vehicles have relatively high electrical consumption, the battery system's electrical capacity is relatively high, resulting in a relatively high center of gravity. Consequently, the bottom structure is prone to failure and system collapse in the event of an impact, particularly during emergency braking at high speeds. Additionally, the amplitude of vibration is excessive when driving on uneven roads, and the battery pack's bottom structure is rigid, making it susceptible to damage during the replacement process. Moreover, in existing battery replacement systems, uneven load mass, vehicle body deformation, and uneven tire pressure make it difficult to position the battery replacement gripping device within the station. This causes the device to shake easily during replacement, leading to safety risks. Prior art literature

[65535] Chinese Patent Publication No. 110329219 (2019.10.15.) The problem to be solved

[0004] This application aims to solve the technical problem in which the battery box easily shakes during vehicle operation and is easily damaged due to impact during battery replacement. means of solving the problem

[0005] In order to solve the aforementioned technical problem, the present application discloses a vehicle battery replacement device, wherein the vehicle battery replacement device comprises a first battery module, a first floating structure, and a fixing device;

[0006] The above fixing device is configured to fix the first battery module onto the stringer of the vehicle;

[0007] The above-mentioned fixed device includes a fixed substrate; the fixed substrate is configured to load the first battery module;

[0008] The first floating structure is provided between the first battery module and the fixed substrate; and the first floating structure is configured to mitigate the vibration amplitude of the first battery module.

[0009] Furthermore, the first floating structure comprises a first floating section, a buffer position limiting section, and a battery floating platform;

[0010] The lower bottom surface of the battery floating platform is connected to the fixed substrate through the first floating part; and the upper top surface of the battery floating platform is connected to the first battery module through the buffer position limiting part.

[0011] Furthermore, the battery floating platform is provided with a first positioning unit and a second positioning unit;

[0012] A third position determining part is provided on the above fixed substrate;

[0013] The lower portion of the first battery module is provided with a fourth position determining unit and a fifth position determining unit;

[0014] The above-mentioned fifth position determining part and the above-mentioned first position determining part are both connected in combination with the above-mentioned third position determining part; and the above-mentioned second position determining part is connected in combination with the above-mentioned fourth position determining part.

[0015] Furthermore, the first positioning part and the fifth positioning part are both first positioning pinholes; and the third positioning part is a first positioning pin that aligns with the first positioning pinhole;

[0016] The second positioning part is a second positioning pin; and the fourth positioning part is a second positioning pinhole that aligns with the second positioning pin.

[0017] Furthermore, it further includes a connecting device,

[0018] The above floating platform structure further includes a connecting device floating platform and a second floating section;

[0019] The above connecting device is fixed on the above connecting device floating platform;

[0020] The above-mentioned connection device floating platform is fixed on the battery floating platform through the above-mentioned second floating part.

[0021] Furthermore, the first floating part includes a plurality of floating elements;

[0022] The above buffer position limiting unit includes a plurality of buffer elements;

[0023] The second floating section above includes a plurality of floating elements.

[0024] Furthermore, the floating element includes an elastic element and / or a buffer element.

[0025] Furthermore, it further includes a buffer, and said buffer is provided on said fixed substrate.

[0026] Furthermore, the above fixing device further includes a first side bracket and a second side bracket installed opposite each other;

[0027] The first side bracket and the second side bracket are each connected to the fixed substrate, and the first side bracket and the second side bracket are installed opposite each other along the stringer direction.

[0028] Furthermore, the first support structure and the second support structure are further included, and one end of the first support structure and the second support structure is connected to a stringer, and the other end of the first support structure and the second support structure is connected to the first side bracket and the second side bracket, respectively.

[0029] Furthermore, the first battery module includes an upper frame;

[0030] The upper frame is provided with a positioning structure and a locking structure; the positioning structure and the locking structure are configured to realize gripping or placing by combining with a battery swapping station battery replacement device.

[0031] Furthermore, the first battery module is mounted on a stringer in the shape of a saddle, and the concave portion of the first battery module is fixed to the upper part of the stringer;

[0032] or;

[0033] The first battery module above has a rectangular structure, and the bottom of the first battery module is fixed to the upper part of the stringer.

[0034] Furthermore, it further includes a second battery module, said second battery module is fixed to the bottom of a stringer or a side wall on any one side of the vehicle.

[0035] Furthermore, the second battery module includes a first battery separation box, a second battery separation box, and a battery frame; the first battery separation box and the second battery separation box are connected through the battery frame, the battery frame is fixed to the bottom of the stringer, and a rapid replacement joint or an electric joint is provided within the battery frame.

[0036] Furthermore, the battery module further comprises a second battery module, wherein the second battery module comprises a first battery separation box, a second battery separation box, and a battery frame; wherein the first battery separation box and the second battery separation box are each fixed to the lower ends of the first battery module, the battery frame is fixed to the lower part of a stringer, and a rapid replacement joint or an electric joint is provided within the battery frame.

[0037] A second aspect of the present application provides a double floating hoist battery swapping station, wherein the double floating hoist battery swapping station comprises a battery gripping structure; the battery gripping structure comprises a gripping plate and a second floating structure;

[0038] The above second floating structure is fixed to the gripping side of the gripping plate;

[0039] The above-described gripping plate is combined with the first battery module of the vehicle through the above-described second floating structure to realize the gripping or release of the first battery module; the above-described second floating structure is configured to mitigate the amplitude of oscillation of the battery gripping structure when gripping the battery module.

[0040] Furthermore, the second floating structure includes a second floating platform and a third floating section;

[0041] The second floating platform is connected to the gripping plate through the third floating part.

[0042] Furthermore, the battery gripping structure further includes a gripping portion; said gripping portion penetrates the second floating platform; and said gripping portion is configured to realize gripping or placing by combining with the first battery module.

[0043] Furthermore, the third floating part is characterized by having a sleeve installed outside the gripping part.

[0044] Furthermore, it further includes a gripper rotation motor, and said gripper rotation motor is electrically connected to said gripping part.

[0045] Furthermore, the second floating platform is provided with a first locking part, and the first locking part is configured to be connected in combination with the first battery module to realize locking or unlocking.

[0046] Furthermore, a locking drive motor is provided on the second floating platform;

[0047] The above lock drive motor is electrically connected to the above first lock part.

[0048] Furthermore, the floating platform is equipped with a sixth position determining unit;

[0049] The above-mentioned sixth positioning unit is connected in combination with the above-mentioned first battery module to realize positioning.

[0050] Furthermore, it further includes a pressure sensor, and the pressure sensor is provided on the gripping part.

[0051] A third aspect of the present application provides a vehicle double floating hoist battery replacement system, wherein the vehicle double floating hoist battery replacement system comprises the vehicle battery replacement device and the double floating battery swapping station. Effects of the invention

[0052] By adopting the technical solution described above, the present application has the following beneficial effects.

[0053] The vehicle battery replacement device provided in the present application is provided with a first floating structure between a first battery module and a fixed substrate, and the floating structure is floatingly connected between the first battery module and the vehicle, thereby effectively mitigating the amplitude of vibration of the first battery module during vehicle driving and the impact on the first battery module during battery replacement. Brief explanation of the drawing

[0054] In order to more clearly explain the technical measures among the embodiments of the present invention, a brief introduction to the attached drawings to be used in the description of the embodiments will be provided below. The drawings described below are merely embodiments of a part of the present invention, and it will be obvious to those skilled in the art that other drawings can be obtained based on these drawings without any inventive labor. FIG. 1 is a schematic diagram of the location distribution of a vehicle battery replacement device of an embodiment of the present application in a vehicle. FIG. 2 is a schematic diagram of the structure of a vehicle battery replacement device of an embodiment of the present application. FIG. 3 is a schematic diagram of the structure of the first floating structure of an embodiment of the present application. FIG. 4 is a schematic diagram of the structure of a fixed substrate of an embodiment of the present application. FIG. 5 is a schematic diagram of the structure of the first side bracket and the second side bracket of an embodiment of the present application. FIG. 6 is a schematic diagram of the structure of a fixing device of an embodiment of the present application. FIG. 7 is a schematic diagram of the structure of an embodiment battery module of the present application. FIG. 8 is a schematic diagram of the location distribution of a vehicle battery replacement device of an embodiment of the present application in a vehicle. FIG. 9 is a schematic diagram of the structure of the second battery module of an embodiment of the present application. FIG. 10 is a schematic diagram of the structure of a fixed frame of an embodiment of the present application. FIG. 11 is a schematic diagram of the combination of a fixed frame and a second battery module of an embodiment of the present application. FIG. 12 is a schematic diagram of the structure of the second battery module of an embodiment of the present application. FIG. 13 is a schematic diagram of the location distribution of a vehicle battery replacement device of an embodiment of the present application in a vehicle. FIG. 14 is a schematic diagram of the location distribution of a vehicle battery replacement device of an embodiment of the present application in a vehicle. FIG. 15 is a schematic diagram of the structure of a double floating battery swapping station of an embodiment of the present application. FIG. 16 is a schematic diagram of the combination of a vehicle battery replacement device and a double floating battery swapping station according to an embodiment of the present application. Specific details for implementing the invention

[0055] Below, a clear and complete description of the technical solutions in the embodiments of this application will be provided in conjunction with the attached drawings. It will be apparent that the described embodiments are merely a part of the embodiments of this application, not the entirety. Based on the embodiments in this application, all other embodiments obtained by a person skilled in the art without inventive labor should fall within the scope of protection of this application.

[0056] The terms “one embodiment” or “embodiment” as used herein refer to specific features, structures, or characteristics that may be included in at least one embodiment of the present application. In the description of the embodiments of the present application, orientations or positional relationships indicated by terms such as “above,” “below,” “top,” “bottom,” etc., are based on orientations or positional relationships depicted in the drawings and are used merely for convenience in describing the present application and simplifying the description; they do not indicate or imply that the device or element indicated must necessarily possess a specific orientation and be configured and operated in a specific orientation, and therefore should not be understood as a limitation on the present application. Furthermore, the terms “first” and “second” are used merely for descriptive purposes and should not be understood as indicating or implying relative importance or implying the quantity of the technical features indicated. Thus, the features defined by “first” and “second” may explicitly or implicitly include one or more of such features. Furthermore, terms such as "first," "second," etc., are used merely to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Data used in this manner may be interchanged where appropriate, and it should be understood that the embodiments of the present application described herein may be practiced in an order other than the one shown or described herein.

[0057] FIG. 1 is a schematic diagram of the positional distribution of a vehicle battery replacement device according to an embodiment of the present application in a vehicle, FIG. 2 is a schematic diagram of the specific structure of the vehicle battery replacement device, and as shown in FIG. 2, the vehicle battery replacement device comprises a first battery module (100), a first floating structure (200), and a fixing device; in an embodiment of the present application, the first battery module (100) comprises a battery pack composed of a plurality of batteries and a battery pack outer frame; and the fixing device is configured to fix the first battery module (100) onto a stringer of the vehicle;

[0058] The above fixing device includes a fixing substrate (300);

[0059] The first floating structure (200) is provided between the first battery module (100) and the fixed substrate (300); and the first floating structure (200) is configured to mitigate the vibration amplitude of the first battery module (100).

[0060] The vehicle battery replacement device provided in the present application is provided with a first floating structure (200) between a first battery module (100) and a fixed substrate (300), and the floating structure is configured to float between the first battery module (100) and the vehicle, thereby effectively mitigating the vibration amplitude of the first battery module (100) during vehicle driving and mitigating the impact on the first battery module (100) during battery replacement.

[0061] In an embodiment of the present application, the bottom of the fixed substrate (300) of the fixed device is connected to a vehicle stringer, and the top is connected to a first floating structure (200).

[0062] In an embodiment of the present application, FIG. 3 is a schematic diagram of a first floating structure of an embodiment of the present application, and as shown in FIG. 2, the first floating structure (200) includes a floating platform structure, a first floating part (201), and a buffer position limiting part (202);

[0063] The above floating platform structure includes a battery floating platform (203);

[0064] The bottom portion of the battery floating platform (203) is connected to the fixed substrate (300) through the first floating portion (201); and the top portion of the battery floating platform (203) is connected to the first battery module (100) through the buffer position limiting portion (202).

[0065] In an embodiment of the present application, a first positioning unit (204) and a second positioning unit (205) are provided on the battery floating platform (203); FIG. 4(a) is a schematic diagram of a fixed substrate of an embodiment of the present application, and a third positioning unit (301) is provided on the fixed substrate (300); a fourth positioning unit (101) and a fifth positioning unit (105) are provided on the bottom of the first battery module (100); the fifth positioning unit (105) and the first positioning unit (204) are both connected in combination with the third positioning unit (301); and the second positioning unit (205) is connected in combination with the fourth positioning unit (101). In FIG. 4(a), a first floating unit mounting unit for mounting the first floating unit is further included; In the implementation of the present application, two fixing brackets (304) are provided on the lower part of the fixed substrate (300), and the two fixing brackets (304) are provided on both sides of the vehicle stringer.

[0066] In an embodiment of the present application, the fifth positioning part (105) and the first positioning part (204) may both be first positioning pinholes; the third positioning part (301) is a first positioning pin that aligns with the first positioning pinhole; the second positioning part (205) is a second positioning pin; and the fourth positioning part (101) includes a second positioning pinhole that aligns with the second positioning pin. The positioning pin designed on the fixed substrate (300) is used as a first-stage positioning of the guide mechanism of the battery floating platform (203) and the system;

[0067] In an embodiment of the present application, a connecting device (206) is further included; the connecting device (206) is connected to a lower connecting device of a first battery module (100).

[0068] The above floating platform structure further includes a connecting device floating platform (207) and a second floating part (208);

[0069] The above connecting device (206) is fixed on the connecting device floating platform (207);

[0070] The above-mentioned connection device floating platform (207) is fixed on the battery floating platform (203) through the second floating part (208).

[0071] In an embodiment of the present application, a coolant inlet / outlet (209) is further included, and the coolant inlet / outlet is provided on a connecting device floating platform (207);

[0072] In an embodiment of the present application, the lower part of the battery floating platform (203) and the fixed substrate (300) are connected to each other through a first floating mechanism, and as a first-stage floating of the system, the impact on the battery pack during the battery replacement process and vibration during the vehicle driving process can be reduced; in an embodiment of the present application, a third positioning part (301) designed on the fixed substrate (300) is combined with a first positioning part (204) on the battery floating platform (203) to be used as a guide mechanism of the battery floating platform (203) and to limit the floating range in the X and Y directions to realize a first-stage positioning of the system; and a second positioning part (205) installed on the battery floating platform (203) and a fourth positioning part (101) installed on the first battery module (100) are combined to realize a second-stage positioning of the system, thereby further securing the mounting precision of the battery; The above-mentioned connection device floating platform (207) is fixed on the battery floating platform (203) through the second floating part (208); it reduces the impact on the connection device (206) during the battery replacement process and also serves as a two-stage floating protection for the first battery module (100); the connection device (206), the connection device floating platform (207), and the coolant inlet / outlet design thereon can be floated together and used as a three-stage floating of the system, which can mitigate vibrations of the entire vehicle and ensure the connection reliability of the connection device (206); in addition, a positioning pin is designed on the connection device (206) and used as a three-stage positioning of the system to realize an accurate connection of the system.

[0073] In an embodiment of the present application, a rubber cushioning block is designed on the battery floating platform (203) and is used as a two-stage cushioning mechanism of the system. In an embodiment of the present application, a cushioning section (302) is further included, and the cushioning section (302) is provided on the fixed substrate (300) and is used as a one-stage cushioning of the entire system. A second floating is installed on the battery floating platform (203), and the cushioning position limiting section (202) is preferably a cushioning element. This enables two-stage cushioning of the entire system and can improve the stability and redundancy of the entire system. In an embodiment of the present application, the vehicle battery replacement device jointly realizes three-stage positioning, three-stage floating, and two-stage cushioning through the fixed substrate (300) and the first floating structure (200). It realizes accurate positioning for battery replacement through a three-stage positioning device; Through three-stage floating, the first battery module (100) can realize buffering the amplitude of vibration during vehicle driving, and can improve stability and redundancy;

[0074] In an embodiment of the present application, the first floating part (201) includes a plurality of floating elements; the buffer position limiting part (202) includes a plurality of buffer elements; and the second floating part (208) includes a plurality of floating elements. In an embodiment of the present application, the floating elements include elastic elements and / or buffer elements. In an embodiment of the present application, both the first floating part (201) and the second floating part (208) may employ elastic elements, and the elastic elements may employ springs. The buffer position limiting part (202) is preferably a buffer element, and may employ, for example, a rubber buffer block. In an embodiment of the present application, the spring of the first floating part (201) may be installed as a sleeve on the third position determining part (301) as shown in FIG. 4(b).

[0075] In an embodiment of the present application, the first battery module (100) includes an outer frame, and a fourth positioning part (101) is installed at the bottom of the outer frame; a positioning structure (103) that is combined with the third positioning part (301) is installed at the bottom of the outer frame and may be a positioning pinhole.

[0076] In an embodiment of the present application, a fixing mechanism for a connecting device (206) and a coolant inlet / outlet is provided at the bottom of the outer frame, and an elastic element is designed on the fixing mechanism, and the elastic element may be a spring, thereby not only realizing a flexible connection of the connecting device (206), but also improving the redundancy of the system, reducing the amplitude of vibration, and improving the mixing precision and efficiency of the system;

[0077] In an embodiment of the present application, as shown in FIG. 5, the fixing device further includes a first side bracket (401) and a second side bracket (402) installed opposite each other; FIG. 6 is a schematic diagram of the structure of the fixing device;

[0078] The first side bracket (401) and the second side bracket (402) are each connected to the fixed substrate (300), and the first side bracket (401) and the second side bracket (402) are installed opposite each other along the stringer direction.

[0079] In an embodiment of the present application, a first support structure (403) and a second support structure are further included, and one end of the first support structure (403) and the second support structure is each connected to a stringer, and the other end of the first support structure (403) and the second support structure is each connected to the first side bracket (401) and the second side bracket (402), respectively. In an embodiment of the present application, a locking mechanism tapered hole (404) is provided on the upper part of both the first side bracket (401) and the second side bracket (402); and the fixing device further includes a battery system coolant tank (405) and a conversion bracket (406). In an embodiment of the present application, the fixing device has the function of lower position limiting and upper locking, and the locking point is above the center of mass; by simultaneously fixing the upper and lower ends of the first battery module, position limiting can be performed on the first battery module and locked, and furthermore, the safety of battery transport can be improved.

[0080] In an embodiment of the present application, as illustrated in FIG. 7, the first battery module (100) includes an upper frame (102); in an embodiment of the present application, the first battery module (100) includes an upper frame (102); a positioning structure (103) and a locking structure (104) are provided on the upper frame (102); the positioning structure (103) and the locking structure (104) are configured to realize gripping or releasing in combination with a battery swapping station battery replacement device. The positioning structure (103) realizes gripping positioning in combination with a sixth positioning part of a gripping device to be described later; the locking structure (104) realizes locking or unlocking in combination with a first locking part of a gripping device to be described later; in an embodiment of the present application, a fifth positioning part (105) is further included at the bottom of the first battery module (100), and the corresponding positioning hole is connected in combination with a positioning pin on a fixed substrate; Among them, a fixing structure (106) for fixing the connecting device and the coolant inlet / outlet is further included; and a battery-side inlet / outlet (107) and a battery-side high-pressure connecting device (108) are further included. A spring is designed on the fixing structure (106) to enable flexible connection of the connecting device.

[0081] In an embodiment of the present application, the upper frame (102) may additionally have a positioning pin, and a corresponding position next to the locking mechanism tapered hole (404) may additionally have a positioning hole, and a positioning may be added to the locking surface of the upper frame (102), the first side bracket (401), and the second side bracket (402) to improve locking precision.

[0082] In the embodiments of the present application, a second battery module may be further included; there are various methods for installing the second battery module, and some of them will be listed and introduced below.

[0083] In one feasible embodiment, as illustrated in FIG. 8, the second battery module is fixed to the stringer bottom or side wall on any one side of the vehicle. Feasibly, the second battery module may be disposed on both stringer bottoms or side walls on both sides of the vehicle; wherein, as illustrated in FIG. 9, the second battery module may include a first battery disconnect box (601), a second battery disconnect box (602), and a battery frame (603); The first battery separation box (601) and the second battery separation box (602) are connected via the battery frame (603), and the battery frame (603) is fixed to the bottom of the stringer, and, if feasible, the battery frame (603) is fixed to the bottom of the vehicle stringer or the side wall via a fixed frame, and in an embodiment of the present application, if feasible, as shown in FIG. 10, the fixed frame can connect the battery frame (603) to one end of the fixed frame and connect the other end of the fixed frame to the bottom of the stringer or the side wall; where FIG. 11 is a schematic diagram of the combination of the fixed frame and the second battery module. In an embodiment of the present application, a rapid replacement joint or an electric joint is provided within the battery frame.

[0084] In another possible embodiment, the second battery module is not installed alone on one side of the stringer, but is installed at the bottom of the stringer as a whole integrated installation; in the embodiment, the second battery module includes a first battery, a second battery separation box (602), and a battery frame (603); the first battery separation box (601) and the second battery separation box (602) are connected through the battery frame (603), the first battery separation box and the second battery separation box are each fixed to the lower ends of the first battery module, the battery frame is fixed to the bottom of the stringer, and a rapid replacement joint or an electric joint is provided within the battery frame. In the embodiment, a rapid replacement joint or an electric joint is provided within the battery frame.

[0085] In the above-described embodiment, the second battery module can be replaced using a bottom lifting method, and if the bottom lifting battery replacement is adopted, the second battery module is unloaded by a lifting mechanism from the entire vehicle bottom and can be carried out together with the upper hoisting battery replacement, thereby increasing the speed of battery replacement; additionally, when the battery capacity is constant, the method of mounting the battery module only on the top can be replaced with a method in which the upper battery module and the lower battery module are combined, thereby lowering the height of the upper first battery module (100), lowering the center of gravity of the battery, and improving the stability of the battery; furthermore, the entire battery module can be divided into two parts, upper and lower, and the upper part first battery module (100) and the lower part second battery module are both fixedly connected to a stringer, thereby further improving the stability of the battery.

[0086] In the above-described embodiment, the battery frame (603) and the stringer or the fixing bracket for fixing the second battery module and the stringer may all be connected through a locking device, and the locking device may include a first locking part and a second locking part; the first locking part is provided on the outer surface of the battery frame; the second locking part is provided on the bottom of the stringer; and the battery frame is fixed to the bottom of the stringer by a method in which the first locking part and the second locking part are combined and locked. In an embodiment of the present application, the first locking part includes a plurality of first locking elements; the plurality of first locking elements are installed to surround the outer surface of the battery frame; for example, four first locking elements may be installed on two outer surfaces perpendicular to the stringer of the battery frame, and each side may have two first locking elements; and feasibly, the number of locking elements may be increased according to demand. The second locking part includes a plurality of second locking elements; The plurality of second locking elements are installed to correspond one-to-one with the plurality of first locking elements. In the embodiments of the present application, there are various installation methods for the locking device, and some of them are listed and introduced below. In the first feasible method, the locking device may further include a fastener; the first locking element includes a locking through-hole; the second locking element includes a locking post that aligns with the locking through-hole; the locking post may be connected to the fastener by passing through the locking through-hole and aligning with the fastener; wherein the fastener may be a fixing nut; and the upper end of the locking post is provided with a screw thread that aligns with the nut.In a second implementable method, the locking device includes a fastener; the first locking element includes a first locking through-hole; the second locking element includes a second locking through-hole; and the fastener sequentially penetrates the first locking through-hole and the second locking through-hole and is connected to the second locking through-hole in alignment. Here, the second locking through-hole is provided with internal threads, and the fastener is a bolt having external threads. The locking device can not only perform a locking function but also a position limiting function, thereby preventing the battery box from shaking or moving.

[0087] In a third implementable embodiment, as illustrated in FIG. 12, the second battery module includes a first battery separation box (601) and a second battery separation box (602); the first battery separation box (601) and the second battery separation box (602) are each fixed to the lower ends of the first battery module (100). In this embodiment, the second battery module may be installed integrally with the first battery module (100), that is, the battery in the first battery module (100) and the battery in the second battery module are connected to one overall battery module pack, and one overall frame is installed outside the battery module pack; additionally, the second battery module and the first battery module (100) may be installed separately, and the two battery separation boxes each have independent frames installed, and are each connected to the frame of the first battery module (100) through the independent frames, making unloading and repair convenient; As described above, when the battery capacity is constant, the method of mounting a battery module only on the upper part can be replaced with a method in which an upper battery module and a lower battery module are combined. By doing so, the height of the upper first battery module (100) can be reduced, thereby lowering the center of gravity of the battery and improving the stability of the battery. Next, by combining with the upper first floating structure, the vibration amplitude of the upper first battery module (100) can be further reduced under the traction of the lower second battery module.

[0088] In an embodiment of the present application, the first battery module may have a rectangular structure, and the first battery module is located entirely on the upper part of the stringer. Embodiedly, the first battery module may have other shapes and is provided entirely on the upper part of the stringer; eminently, as shown in FIG. 13, the cross-section of the first battery module (100) may have an inverted concave structure, and the concave portion of the first battery module (100) is fixed to the upper part of the stringer, and the first battery module (100) is mounted on the stringer of the vehicle in a saddle shape; the stringer supports the concave portion of the battery box; both sides are connected to the sides of the stringer; compared to the battery box being installed entirely on the upper part of the stringer as a cube structure, this installation can effectively lower the center of gravity of the battery box and increase the stability of the battery box (1). In an embodiment of the present application, the first battery module (100) having an inverted concave structure is composed of two mirror-symmetrically separated inverted L-shaped battery separation boxes. In one feasible embodiment, the battery in the first battery module (100) is an integrated inverted concave battery, and the external battery frame is also an inverted concave frame; the concave battery is installed within the inverted concave frame. In another feasible embodiment, the battery is an integrated inverted concave battery, and the battery frame is formed by combining two separated L-shaped frames. It is intended to explain that whether the first battery module described above has a rectangular structure as shown in FIG. 1 or an inverted concave structure as described above, the installation method of the second battery module described above can be adopted.

[0089] As illustrated in FIG. 14, based on the fact that the cross-section of the first battery has an inverted concave structure, there may be other installation methods for the second battery module, for example, the second battery module may be vertical, corresponding to the width of the stringer, and fixed longitudinally to the bottom of the stringer; such installation methods can rationally utilize the concave space of the concave battery module to reduce the overall battery placement space, lower the height of the upper battery module, and improve battery stability. In such methods, the second battery module adopts a bottom lifting method to perform battery replacement.

[0090] A second aspect of the present application provides a double floating hoist battery swapping station, comprising, as illustrated in FIG. 15, a battery gripping structure; said battery gripping structure comprises a gripping plate (500) and a second floating structure; the battery swapping station of the present application is equipped with a floating structure and, when gripping is performed, forms a double floating battery replacement arrangement by combining with a floating structure on a vehicle.

[0091] The second floating structure is fixed to the gripping side of the gripping plate (500);

[0092] The gripping plate (500) is combined with the first battery module (100) of the vehicle through the second floating structure to realize the gripping or placing of the first battery module (100); as shown in FIG. 7, the second floating structure is configured to mitigate the amplitude of oscillation of the battery gripping structure when gripping the battery module. In an embodiment of the present application, the second floating structure includes a second floating platform (501) and a third floating part (502);

[0093] The second floating platform (501) is connected to the gripping plate (500) through the third floating part (502).

[0094] In an embodiment of the present application, the battery gripping structure further includes a gripping portion (506); the gripping portion (506) penetrates the second floating platform (501); and the gripping portion (506) is configured to realize gripping or placing by combining with the first battery module (100).

[0095] In an embodiment of the present application, the third floating part (502) is installed as a sleeve outside the gripping part (506). The third floating part (502) may be a compression element or an elastic element, such as a spring. The installation of the second floating structure may provide a preload force when the battery gripping is locked.

[0096] In an embodiment of the present application, a gripper rotation motor is further included, and the gripper rotation motor is electrically connected to the gripping part (506).

[0097] In an embodiment of the present application, the second floating platform (501) is provided with a first locking part (503), and the first locking part (503) is configured to be connected in combination with the first battery module (100) to realize locking or unlocking.

[0098] In an embodiment of the present application, a locking drive motor (505) is provided on the second floating platform (501); the locking drive motor (505) may be configured to determine the accuracy of the lock by transmitting rotation angle and torque information during the battery replacement process.

[0099] The above lock drive motor (505) is electrically connected to the first lock part (503).

[0100] In an embodiment of the present application, the floating platform is provided with a sixth position determining unit (504); the sixth position determining unit (504) is connected in combination with the first battery module (100) to realize position determination.

[0101] In an embodiment of the present application, a pressure sensor is further included, and said pressure sensor is provided on the gripping portion (506). The pressure sensor may be configured to detect the pressure of the gripping portion (506) and determine the gripping situation.

[0102] In conventional battery replacement systems, when performing battery replacement at a station, it becomes difficult to determine the position of the battery replacement gripping device due to causes such as uneven mass of the load, deformation of the vehicle body, and uneven tire pressure, and the device shakes easily during battery replacement, thereby causing safety risks. The battery replacement device on the battery swapping station side provided in the embodiment of the present application includes a floating gripping platform equipped with rapid locking / unlocking that guides position determination, enabling accurate position determination and rapid locking / unlocking. Furthermore, the installation of a second floating structure reduces system oscillation caused by deviation of the center of gravity of the power battery from the center of the gripping device after gripping, and reduces the amplitude of oscillation or vibration, thereby improving the safety of the battery replacement process.

[0103] The battery swapping station-side battery replacement device provided in the embodiment of the present application first realizes position determination by a combination in which the sixth position determining unit (504) and the first battery module (100) are connected in combination. Subsequently, the locking drive motor (505) drives the operation of the first locking unit (503) to realize locking and unlocking of the system. The gripping unit (506) provides a guide and position limit for the second floating platform (501), and

[0104] The gripping and release of the first battery module (100) is realized through the combination of the gripping part (506) and the upper compression bracket. In an embodiment of the present application, a gripper rotation motor (507) is also included; the gripper rotation motor (507) drives the rotation of the gripping part (506) to realize the gripping and release of the first battery module through the combination of the gripping part (506) and the battery upper bracket. FIG. 16 is a schematic diagram of a dual floating battery swapping station and a vehicle battery replacement device being combined.

[0105] A third aspect of the present application provides a vehicle double floating hoist battery replacement system, wherein the vehicle double floating hoist battery replacement system comprises the vehicle battery replacement device and the double floating hoist battery swapping station.

[0106] The above description is merely a more preferred embodiment of the present application and is not intended to limit the present application, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of protection of the present application. Explanation of the symbols

[0107] 100: First battery module (100) 101: 4th position determining unit 102: Upper frame 103: Positioning Structure 104: Locking Structure 200: The first floating structure 201: 1st Floating Section 202: Buffer position limiting part 203: Battery Floating Platform 204: First position determining unit 205: Second positioning unit 206: Connection device 207: Connected Device Floating Platform 208: 2nd Floating Section 300: Fixed board 301: Third position determining unit 302: Buffer 303: Fixing bracket 401: First side bracket 402: Second side bracket 403: First support structure 500: Waste paper 501: Second Floating Platform 502: 3rd Floating Section 503: First locking part 504: 6th position determining unit 505: Locking drive motor 506: Waste paper 601: 1st Battery Disconnect Box 602: Second battery disconnect box 603: Battery Frame

Claims

Claim 1 A vehicle battery replacement device comprising: a first battery module (100), a first floating structure (200), and a fixing device; wherein the fixing device is configured to fix the first battery module (100) onto a stringer of a vehicle; wherein the fixing device comprises a fixing substrate (300), and the fixing substrate (300) is configured to load the first battery module (100); wherein the first floating structure (200) is provided between the first battery module (100) and the fixing substrate (300); wherein the first floating structure (200) is configured to mitigate the vibration amplitude of the first battery module (100), and further comprises a damping member (302), wherein the damping member (302) is provided on the fixing substrate (300). Claim 2 A vehicle battery replacement device according to claim 1, wherein the first floating structure (200) comprises a first floating part (201), a buffer position limiting part (202), and a battery floating platform (203); the lower bottom surface of the battery floating platform (203) is connected to the fixed substrate (300) through the first floating part (201); and the upper top surface of the battery floating platform (203) is connected to the first battery module (100) through the buffer position limiting part (202). Claim 3 A vehicle battery replacement device according to claim 2, wherein a first positioning unit (204) and a second positioning unit (205) are provided on the battery floating platform (203); a third positioning unit (301) is provided on the fixed substrate (300); a fourth positioning unit (101) and a fifth positioning unit (105) are provided on the bottom of the first battery module (100); the fifth positioning unit (105) and the first positioning unit (204) are all connected in combination with the third positioning unit (301); and the second positioning unit (205) is connected in combination with the fourth positioning unit (101). Claim 4 A vehicle battery replacement device according to claim 3, wherein the first position determining part (204) and the fifth position determining part are both first position determining pinholes; the third position determining part (301) is a first position determining pin that aligns with the first position determining pinhole; the second position determining part (205) is a second position determining pin; and the fourth position determining part (101) is a second position determining pinhole that aligns with the second position determining pin. Claim 5 A vehicle battery replacement device according to claim 2, further comprising a connecting device (206), wherein the first floating structure (200) further comprises a connecting device floating platform (207) and a second floating part (208); wherein the connecting device (206) is fixed on the connecting device floating platform (207); and wherein the connecting device floating platform (207) is fixed on the battery floating platform (203) through the second floating part (208). Claim 6 A vehicle battery replacement device according to claim 5, wherein the first floating part (201) comprises a plurality of floating elements; the buffer position limiting part (202) comprises a plurality of buffer elements; and the second floating part (208) comprises a plurality of floating elements. Claim 7 A vehicle battery replacement device according to claim 6, wherein the floating element comprises an elastic element. Claim 8 delete Claim 9 A vehicle battery replacement device according to claim 1, wherein the fixing device further comprises a first side bracket (401) and a second side bracket (402) installed opposite each other; wherein the first side bracket (401) and the second side bracket (402) are each connected to the fixing substrate (300), and the first side bracket (401) and the second side bracket (402) are installed opposite each other along the stringer direction. Claim 10 A vehicle battery replacement device according to claim 9, further comprising a first support structure (403) and a second support structure, wherein one end of the first support structure (403) and the second support structure is connected to a stringer, and the other end of the first support structure (403) and the second support structure is connected to the first side bracket (401) and the second side bracket (402), respectively. Claim 11 A vehicle battery replacement device according to claim 9, further comprising an upper frame; wherein the upper frame (102) is installed on the upper part of the first battery module (100); wherein the upper frame (102) is locked to the first side bracket (401) and the second side bracket (402), respectively; wherein a positioning structure (103) and a locking structure (104) are provided on the upper frame (102); and wherein the positioning structure (103) and the locking structure (104) are configured to realize gripping or placing in combination with a battery swapping station battery replacement device. Claim 12 A vehicle battery replacement device according to claim 1, wherein the cross-section of the first battery module (100) has an inverted concave structure, the first battery module is mounted on a stringer in the shape of a horse saddle, and the concave portion of the first battery module (100) is fixed to the upper part of the stringer; or, the first battery module (100) has a rectangular structure, and the lower portion of the first battery module (100) is fixed to the upper part of the stringer. Claim 13 A vehicle battery replacement device according to claim 12, further comprising a second battery module, wherein the second battery module is fixed to the bottom of a stringer or a side wall on any one side of the vehicle. Claim 14 A vehicle battery replacement device according to claim 13, wherein the second battery module comprises a first battery separation box (601), a second battery separation box (602), and a battery frame (603); wherein the first battery separation box (601) and the second battery separation box (602) are connected through the battery frame (603), the battery frame (603) is fixed to the bottom of a stringer, and a rapid replacement joint or an electric joint is provided within the battery frame (603). Claim 15 A vehicle battery replacement device according to claim 12, further comprising a second battery module, wherein the second battery module comprises a first battery separation box (601), a second battery separation box (602), and a battery frame (603); wherein the first battery separation box (601) and the second battery separation box (602) are each fixed to the lower ends of the first battery module (100), the battery frame (603) is fixed to the lower part of a stringer, and a rapid replacement joint or an electric joint is provided within the battery frame (603). Claim 16 A double floating hoist battery swapping station comprising: a battery gripping structure; wherein the battery gripping structure comprises a gripping plate (500) and a second floating structure; wherein the second floating structure is fixed to the gripping side of the gripping plate (500); wherein the gripping plate (500) combines with the first battery module (100) of a vehicle through the second floating structure to realize the gripping or release of the first battery module (100); and wherein the second floating structure is configured to mitigate the oscillation range of the battery gripping structure when gripping the battery module. Claim 17 A double floating hoist battery swapping station according to claim 16, wherein the second floating structure comprises a second floating platform (501) and a third floating section (502); and the second floating platform (501) is connected to the gripping plate (500) through the third floating section (502). Claim 18 A double floating hoist battery swapping station according to claim 17, wherein the battery gripping structure further includes a gripping portion (506); the gripping portion (506) penetrates the second floating platform (501); and the gripping portion (506) is configured to realize gripping or placing in combination with the first battery module (100). Claim 19 A double floating hoist battery swapping station according to claim 18, characterized in that the third floating part (502) is sleeve-installed outside the gripping part (506). Claim 20 A double floating hoist battery swapping station according to claim 18, further comprising a gripper rotation motor, wherein the gripper rotation motor is electrically connected to the gripping part (506). Claim 21 A double floating hoist battery swapping station according to claim 17, wherein the second floating platform (501) is provided with a first locking part (503), and the first locking part (503) is configured to be connected in combination with the first battery module (100) to realize locking or unlocking. Claim 22 A double floating hoist battery swapping station according to claim 21, wherein a locking drive motor (505) is provided on the second floating platform (501); and the locking drive motor (505) is electrically connected to the first locking part (503). Claim 23 A double floating hoist battery swapping station characterized in that, in claim 17, the floating platform is provided with a sixth position determining unit (504); and the sixth position determining unit (504) is connected in combination with the first battery module (100) to realize position determination. Claim 24 A double floating hoist battery swapping station according to claim 18, further comprising a pressure sensor, wherein the pressure sensor is provided on the gripping part (506). Claim 25 A vehicle hoist battery replacement system characterized by comprising a vehicle battery replacement device according to any one of claims 1 to 7 and 9 to 15, and a double floating hoist battery swapping station according to any one of claims 16 to 24.

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