Battery replacing equipment, battery replacing robot comprising same and battery replacing station

Abstract

The invention discloses a battery replacing device, a battery replacing robot comprising the same and a battery replacing station. Comprising a tray used for bearing a battery pack and connected to the upper portion of a shuttle vehicle through a tray mounting mechanism; the disassembly and assembly mechanism is used for unlocking or locking a fixing part of the battery pack and is arranged on the battery tray; the tray mounting mechanism comprises a mounting part connected to the tray; the fixing part is connected to the shuttle vehicle; the fixing part comprises a shell and a fixing base, the fixing base is arranged below the mounting part, the shell is annularly arranged outside the mounting part, and the shell is arranged above the fixing base and connected to the fixing base; the mounting part comprises a first mounting seat, a first connecting piece and a second connecting piece, and the first mounting seat is used for mounting a battery tray; the first connecting piece is connected to the first mounting seat; the second connecting piece is clamped between the shell and the first connecting piece; the mounting part comprises a bushing, the bushing is clamped between the first connecting piece and the second connecting piece, and the first connecting piece and the second connecting piece slide relatively through the bushing.

Description

[0001] This application is a division of a Chinese invention patent with an application date of December 2, 2021, application number 202111461279.X, and name “Battery swap equipment and battery swap robot and battery swap station therein”. Technical Field

[0002] The present application relates to the field of battery replacement, and in particular to a battery replacement device and a battery replacement robot and a battery replacement station comprising the same. Background Art

[0003] There are two main charging methods for electric vehicles: direct charging and quick-change. Direct charging requires charging piles to charge electric vehicles, but the charging time is long and the efficiency is low. Battery swapping requires battery swapping stations to replace batteries in electric vehicles to achieve quick battery swapping, which shortens the time compared to direct charging.

[0004] The battery swapping equipment is an important piece of equipment in a battery swapping station. It is responsible for the main work of battery swapping for vehicles, including removing the battery pack from the battery swapping vehicle and installing the battery pack on the battery swapping vehicle. For the battery swapping under the vehicle, the battery swapping equipment needs to enter the bottom of the vehicle to remove the battery pack, then load out the removed battery pack, and then enter the bottom of the vehicle again with the new battery pack and install the new battery pack.

[0005] For replaceable battery packs, they can be installed to the vehicle bracket through fasteners, and the locking device on the vehicle bracket can fix the battery pack. A disassembly and assembly mechanism is usually provided on the tray to complete related operations. The disassembly and assembly mechanism can lock or unlock the fasteners to achieve the installation or removal of the battery pack. During the installation or removal of the battery pack, due to the large size and weight of the battery pack, the battery swap equipment is prone to shaking after loading the battery pack. At the same time, the battery swap equipment is prone to movement and dislocation during the process of removing or pushing the battery pack from the electric vehicle, which makes it difficult to unload the battery pack. In this case, the disassembly and assembly mechanism is easy to install or disassemble, causing damage to the battery pack or fasteners. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a battery swapping device and a battery swapping robot and a battery swapping station comprising the same.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] A battery replacement device, comprising a shuttle vehicle, a battery tray and a battery disassembly and assembly mechanism; the battery tray is used to carry a battery pack, and the battery tray is connected to the top of the shuttle vehicle through a tray mounting mechanism along the battery pack disassembly and assembly direction; the battery disassembly and assembly mechanism is used to unlock or lock the fixed parts of the battery pack, and the battery disassembly and assembly mechanism is arranged on the battery tray;

[0009] The tray installation mechanism includes: a mounting portion, the mounting portion is connected to the battery tray; a fixing portion, the fixing portion is connected to the shuttle;

[0010] The fixing part includes a shell and a fixing base, wherein the fixing base is arranged below the mounting part along the battery pack disassembly direction, the shell is arranged around the outside of the mounting part, and the shell is arranged above the fixing base and connected to the fixing base;

[0011] The mounting portion includes a first mounting seat, a first connecting member and a second connecting member, wherein the first mounting seat is used to mount the battery tray; the first connecting member is connected to the first mounting seat; and the second connecting member is sandwiched between the housing and the first connecting member.

[0012] The mounting portion further includes a bushing, which is clamped between the first connecting member and the second connecting member, and the first connecting member and the second connecting member slide relative to each other along the battery pack disassembly and assembly direction through the bushing.

[0013] In this solution, the overall structure of the tray mounting mechanism is simple and very easy to use. It can prevent the mounting part from being skewed during movement and maintain the stability of the battery tray. By setting a bushing, the friction between the first connecting member and the second connecting member can be reduced, making the first connecting member move more smoothly in the direction of battery disassembly and assembly, thereby increasing its service life.

[0014] Preferably, the battery tray can elastically move relative to the shuttle vehicle in a direction parallel to and / or perpendicular to the battery pack disassembly and assembly direction; the battery disassembly and assembly mechanism can elastically move relative to the battery tray in a direction parallel to the battery pack disassembly and assembly direction and / or swing in a direction oblique to the battery pack disassembly and assembly direction at one end thereof facing the fixed component.

[0015] In this solution, the above-mentioned structural setting can realize the floating connection of the battery tray on the shuttle vehicle, so that the battery tray can drive the battery disassembly and assembly mechanism to fine-tune its position in the battery pack disassembly and assembly direction within a certain floating space, thereby improving the adaptability of the tray installation mechanism, the battery tray and the battery disassembly and assembly mechanism, facilitating the battery disassembly and assembly mechanism to align the fixed parts of the battery pack, and achieving high stability in battery replacement, fast working speed and high efficiency. The end of the battery disassembly and assembly mechanism can elastically move in a direction parallel to the battery disassembly and assembly direction and / or swing in a direction inclined to the battery disassembly and assembly direction relative to the battery tray. Even if there is an error in the relative positioning of the battery disassembly and assembly mechanism and the fixed parts, the battery disassembly and assembly mechanism can be fine-tuned in a certain floating space and can be aligned with the fixed parts, thereby achieving unlocking or locking of the fixed parts, reducing the positioning accuracy requirements and improving the alignment efficiency. At the same time, the floating in the battery pack disassembly and assembly direction can prevent the battery tray from rising excessively, resulting in a rigid collision between the protruding parts on the battery tray and the vehicle, reducing component damage and extending the service life of the battery replacement equipment.

[0016] Preferably, the tray mounting mechanism includes: a tray elastic component, which is arranged between the mounting portion and the fixing portion, and the tray elastic component is elastically deformed in a direction parallel to and / or perpendicular to the battery pack disassembly and assembly direction, so that the mounting portion can elastically move relative to the fixing portion in a direction parallel to and / or perpendicular to the battery pack disassembly and assembly direction.

[0017] In this solution, the above-mentioned structural form is adopted, and the tray elastic component is arranged between the mounting part and the fixing part. The mounting part is elastically moved relative to the fixing part in parallel and / or perpendicular to the battery pack disassembly direction by relying on the elastic deformation of the tray elastic component itself, so that the mounting part can drive the battery tray to fine-tune the position in the battery pack disassembly direction within a certain floating space. The overall structure of the tray mounting mechanism is simple and very convenient to use.

[0018] Preferably, the tray elastic component includes a first elastic component and / or a second elastic component, the first elastic component is arranged between the mounting portion and the fixed base, and the first elastic component can be elastically deformed in a direction parallel to the disassembly and assembly direction of the battery pack; the second elastic component is arranged between the mounting portion and the shell, and the second elastic component can be elastically deformed in a direction perpendicular to the disassembly and assembly direction of the battery pack.

[0019] In the present solution, the above-mentioned structural form is adopted, and the mounting part can transfer the floating along the direction perpendicular to the battery pack disassembly and assembly direction to the shell, so that the mounting part only needs to be connected to the battery tray to achieve floating in parallel with the battery pack disassembly and assembly direction and perpendicular to the battery pack disassembly and assembly direction at the same time, thereby reducing the components connected to the mounting part and simplifying the overall structure.

[0020] Preferably, the first connecting member is connected to the first elastic component; and the second elastic component is arranged between the shell and the second connecting member.

[0021] In this solution, the first mounting seat is connected to the first elastic component through the first connecting member. This arrangement increases the area where the mounting portion can be connected to the first elastic component or other components. For example, when there is a need for floating in other directions, the elastic components in other directions can be directly connected to the first connecting member to avoid the first elastic component or other components interfering with the connection between the first mounting seat and the tray. If the first connecting member is directly connected to the second elastic component, floating in the vertical direction may cause an unstable connection between the second elastic component and the first connecting member, and also cause the first connecting member to be blocked from moving in the vertical direction.

[0022] Preferably, the mounting portion further comprises a guide portion, the guide portion is arranged above the second connecting member along the battery pack disassembly and assembly direction, and the guide portion is arranged around the outer side of the first connecting member;

[0023] The inner wall surface of the guide portion matches the outer wall surface of the first connecting member, so that the first connecting member can be moved relative to the guide portion along the battery pack disassembly and assembly direction.

[0024] In this solution, a guide portion with matching shape is provided outside the sleeve body, so that the sleeve body moves along the guide portion, thereby preventing the movement path of the sleeve body from being skewed during the floating process of the first elastic member.

[0025] Preferably, the first connecting member includes a sleeve body and a sleeve end cover, the sleeve body is sleeved on a portion of the first elastic component, and when the first elastic component does not undergo elastic deformation, there is a gap of a first preset distance between the fixed base and the lower end surface of the sleeve body.

[0026] In this solution, the first connecting member is provided in the form of a sleeve, the first elastic component is connected to the first mounting seat through the sleeve end cover, and the sleeve body is convenient for cooperating with other components. For example, a shell with matching shape is provided outside the sleeve body, which can prevent the first elastic member from being skewed during the floating process. In addition, the sleeve body can protect the first elastic component from being corroded by the environment and increase the service life. The gap of the first preset distance is used for the first elastic component to expand and contract, so as to provide the mounting part with space to move in a direction parallel to the disassembly and assembly direction of the battery pack, and to limit the floating stroke of the mounting part in a direction parallel to the disassembly and assembly direction of the battery pack.

[0027] Preferably, the tray mounting mechanism further comprises a first pad, which is arranged between the first elastic component and the fixed base, wherein the upper surface of the first pad cooperates with the first elastic component, and the lower surface of the first pad contacts with the fixed base.

[0028] In this solution, the first pad can reduce the friction between the fixed base and the first elastic component, so that the first elastic component can move more smoothly in a direction perpendicular to the disassembly and assembly direction of the battery pack, thereby extending the service life.

[0029] Preferably, the fixed base further includes a first sliding plate, and the first sliding plate is embedded in a position of the surface of the fixed base facing the mounting portion corresponding to the first pad.

[0030] In this solution, the first sliding plate cooperates with the first pad to further reduce the friction between the fixed base and the first elastic component.

[0031] Preferably, the second elastic component includes a plurality of elastic members, and the plurality of elastic members are arranged between the second connecting member and the shell in different directions, so that the mounting portion moves relative to the shell in a plane perpendicular to the disassembly direction of the battery pack;

[0032] When the second elastic component does not undergo elastic deformation, a gap of a second preset distance exists between the shell and the second connecting portion.

[0033] In this solution, the gap of the second preset distance is used for the expansion and contraction of the second elastic component to provide space for the mounting portion to move in a direction perpendicular to the battery pack assembly and disassembly direction and to limit the floating travel of the mounting portion in a direction perpendicular to the battery pack assembly and disassembly direction.

[0034] Preferably, the plurality of elastic members are arranged in pairs, and the elastic deformation directions of each pair of elastic members are on the same straight line.

[0035] In this solution, elastic parts in multiple directions are arranged in pairs facing each other, which optimizes the setting position of the elastic parts and facilitates the resetting of the installation part after floating. If one of the elastic parts is damaged, the floating effect of the tray installation mechanism is not affected due to the setting of multiple relative elastic parts.

[0036] Preferably, the tray installation mechanism further comprises a first movable member, a first accommodating groove is circumferentially arranged on the outer wall surface of the second connecting member, and the first movable member matches with the first accommodating groove and is movable in the first accommodating groove;

[0037] A first mounting hole is arranged on the inner wall surface of the mounting portion, one end of the second elastic component is embedded in the first mounting hole, and the other end is connected to the first movable member.

[0038] In the present solution, by providing a first circumferentially extending accommodating groove, the mounting portion can move or rotate circumferentially during the floating process, thereby improving the adaptability of the tray mounting mechanism; by providing a first mounting hole for installing the first elastic component, an embedded method is adopted to reduce the occupied space, thereby making the structure of the entire tray mounting mechanism more compact.

[0039] Preferably, the tray mounting mechanism also includes a vertical stabilizing member, a first through hole is provided on the fixed base, the vertical stabilizing member passes through the first through hole of the fixed base and the first elastic component along the direction of battery pack disassembly and assembly and is connected to the first connecting member; when the second elastic component does not undergo elastic deformation, there is a gap of a third preset distance between the vertical stabilizing member and the edge of the first through hole.

[0040] In this solution, the first through hole is used for the vertical stabilizing member to pass through, and the vertical stabilizing member is used to connect the mounting portion to the fixing portion to prevent the mounting portion from being separated from the fixing portion along the battery pack disassembly and assembly direction during the floating process.

[0041] Preferably, the tray mounting mechanism further includes a second pad, which is disposed between the vertical stabilizing member and the fixed base, wherein the lower surface of the second pad cooperates with the vertical stabilizing member and the upper surface contacts with the fixed base.

[0042] In this solution, the second pad is used to reduce the friction between the fixed base and the vertical stabilizing member, so that the vertical stabilizing member can move more smoothly in the direction perpendicular to the disassembly and assembly direction of the battery pack, thereby extending the service life.

[0043] Preferably, the fixed base further includes a second sliding plate, and the second sliding plate is embedded in a position of the surface of the fixed base away from the mounting portion and corresponding to the second pad.

[0044] In this solution, the second sliding plate is used to cooperate with the second pad to further reduce the friction between the fixed base and the vertical stabilizing member.

[0045] Preferably, there are multiple tray mounting mechanisms, and the multiple tray mounting mechanisms are evenly distributed at the bottom of the battery tray.

[0046] In this solution, the above-mentioned structural setting is adopted, and multiple tray installation mechanisms are used to ensure that the battery tray floats more smoothly, avoiding the battery tray from tilting during the floating process and affecting the installation and alignment process, thereby achieving high battery replacement stability, fast working speed and high efficiency.

[0047] Preferably, the battery disassembly and assembly mechanism comprises a second mounting seat, a connecting portion and a disassembly and assembly portion, the lower end of the second mounting seat is mounted on the battery tray, the disassembly and assembly portion is used to unlock or lock the fixing component of the battery pack, and the disassembly and assembly portion is connected to the second mounting seat through the connecting portion;

[0048] The lower end of the disassembly portion is movably connected to the upper end of the connection portion, and the upper end of the disassembly portion can swing from the axis of the connection portion to the outside of the axis of the connection portion, so that the disassembly portion swings relative to the battery tray in a direction inclined to the battery disassembly direction; and / or

[0049] A third elastic component is provided between the connecting portion and the second mounting seat, and the third elastic component is elastically deformed in a direction parallel to the battery disassembly and assembly direction, so that the disassembly and assembly portion is elastically moved relative to the battery tray in a direction parallel to the battery disassembly and assembly direction.

[0050] In the present solution, the above-mentioned structural form is adopted, and a movable connection method is adopted between the disassembly and assembly part and the connecting part, so that the disassembly and assembly part can swing relative to the axial direction of the connecting part, thereby increasing the movable range of the disassembly and assembly part and reducing the positioning accuracy requirements. Even if there is an error in the relative positioning of the disassembly and assembly part and the fixed part, the swingable disassembly and assembly part can still clamp the fixed part, which can improve the efficiency of aligning the fixed part. The third elastic component can facilitate the floating of the disassembly and assembly part in the disassembly and assembly direction of the battery pack, and can avoid the excessive rise of the disassembly and assembly mechanism, which causes a rigid collision between the disassembly and assembly mechanism and the vehicle, thereby extending the service life of the battery replacement equipment. The structural stability is increased by the mounting seat, and the overall structure is simple and compact.

[0051] Preferably, the disassembly portion is connected to the connection portion via a pivot shaft.

[0052] In this solution, the above-mentioned structural form is adopted, and the swing between the disassembly and assembly part and the connection part is realized by using a pivot shaft, so the structure is simple and reliable.

[0053] Preferably, the battery assembly and disassembly mechanism further comprises a reset component, wherein the reset component is sleeved on the outer circumferential surfaces of the assembly and disassembly portion and the connecting portion, and the reset component is used to make the axis of the assembly and disassembly portion coincide with the axis of the connecting portion.

[0054] In the present solution, the above-mentioned structural form is adopted, and the reset component is sleeved on the outer peripheral surface of the disassembly and assembly part and drives the disassembly and assembly part to reset, so that the axis of the disassembly and assembly part can coincide with the axis of the fixing component, thereby realizing the unlocking or locking of the fixing component, which can reduce the positioning accuracy requirements and improve the efficiency of aligning the fixing component.

[0055] Preferably, the battery assembly and disassembly mechanism further comprises a second driving portion, the second driving portion is drivingly connected to the connecting portion, and the second driving portion applies torque to the assembly and disassembly portion through the connecting portion.

[0056] In the present solution, the above-mentioned structural form is adopted, and the second driving part is used to provide a rotational driving force, and a torque is applied to the disassembly and assembly part through the transmission of the connecting part, so that the unlocking or locking can be achieved by twisting the fixed part. It is very convenient to use and easy to control, with high precision and high stability.

[0057] Preferably, the battery disassembly and assembly mechanism is a torque gun, the disassembly and assembly part is a sleeve device, and the second driving part is a motor assembly; the motor assembly drives the sleeve device to rotate through the connecting part.

[0058] In this solution, the fixed component is unlocked or locked by controlling the rotation of the sleeve device of the torque gun, and the torque gun is driven by a motor, which is simple and stable, and can achieve precise control of the torque and the number of rotations.

[0059] Preferably, there are multiple battery disassembly and assembly mechanisms, which are distributed in an array on the battery tray, and positions of the multiple battery disassembly and assembly mechanisms correspond one-to-one to multiple fixed components on the battery pack.

[0060] In the present solution, the above-mentioned structural form is adopted, and a battery disassembly and assembly mechanism corresponding to the multiple fixed components on the battery pack is arranged on the battery tray, so that all disassembly and assembly mechanisms can unlock or lock all fixed components at the same time to realize disassembly or installation between the battery pack and the vehicle, thereby greatly improving the efficiency and stability of unlocking or locking.

[0061] The present invention also provides a battery-swapping robot, which includes the above-mentioned battery-swapping device.

[0062] Preferably, the battery-swapping robot also includes a shuttle chassis and a lifting mechanism, and the shuttle is arranged on the shuttle chassis through the lifting mechanism, and the lifting mechanism drives the battery-swapping equipment to rise or fall along the direction of battery pack disassembly and assembly.

[0063] In this solution, the battery tray is raised to the working position by the lifting mechanism, so that the disassembly and assembly mechanism can cooperate with the fixed parts of the battery pack, thereby unlocking or locking the battery pack. At the same time, the battery tray is moved downward by the lifting mechanism, so that the disassembly and assembly part moves away from the vehicle, which is convenient for the shuttle vehicle to drive out from under the vehicle. At the same time, the lifting mechanism is the reference for the floating of the tray installation mechanism. When the lifting mechanism drives the tray installation mechanism to rise and fall, the tray installation mechanism enables the tray to float, thereby realizing the adaptability of the tray.

[0064] The present invention also provides a battery swap station, which includes the above-mentioned battery swap robot.

[0065] The positive and progressive effects of the present invention are:

[0066] In the present invention, the overall structure of the tray installation mechanism is simple and very convenient to use. It can prevent the installation part from being skewed during movement and maintain the stability of the battery tray. By setting a bushing, the friction between the first connecting member and the second connecting member can be reduced, so that the first connecting member can move more smoothly in the direction of battery disassembly and assembly, thereby improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 This is a schematic diagram of the three-dimensional structure of the battery exchange device according to embodiment 1 of the present invention.

[0068] Figure 2 Another structural schematic diagram of the battery replacement equipment of embodiment 1 of the present invention.

[0069] Figure 3 This is a schematic structural diagram of the tray installation mechanism of Example 1 of the present invention.

[0070] Figure 4 This is a schematic assembly diagram of the tray mounting mechanism of Example 1 of the present invention.

[0071] Figure 5 This is another structural schematic diagram of the tray installation mechanism of Example 1 of the present invention.

[0072] Figure 6 This is another structural schematic diagram of the tray installation mechanism of Example 1 of the present invention.

[0073] Figure 7 Schematic diagram of the internal structure of the tray installation mechanism of Example 1 of the present invention.

[0074] Figure 8 This is another schematic diagram of the internal structure of the tray installation mechanism of Example 1 of the present invention.

[0075] Fig. 9 This is a schematic diagram of the structure of the battery disassembly and assembly mechanism of Example 1 of the present invention.

[0076] Fig.10 Schematic diagram of the internal structure of the battery disassembly and assembly mechanism of Example 1 of the present invention.

[0077] Fig.11 This is a schematic diagram of the three-dimensional structure of the battery exchange device according to embodiment 2 of the present invention.

[0078] Fig.12 Another structural schematic diagram of the battery replacement equipment of embodiment 2 of the present invention.

[0079] Fig.13A schematic diagram of the partial structure of the battery replacement equipment of embodiment 2 of the present invention.

[0080] Description of reference numerals:

[0081] Shuttle chassis 5

[0082] Lifting mechanism 501

[0083] First driving unit 511

[0084] Transmission unit 512

[0085] Battery Tray 2

[0086] Leveling parts 3

[0087] Abutment surface 31

[0088] Battery disassembly mechanism 4

[0089] First mounting seat 41

[0090] Connecting part 42

[0091] Disassembly and assembly part 43

[0092] The third elastic component 44

[0093] Reset component 45

[0094] Second driving unit 46

[0095] Tray mounting mechanism 100

[0096] Mounting section 10

[0097] Second mounting seat 11

[0098] Tray mounting end face 111

[0099] Extension block 112

[0100] First assembly hole 113

[0101] The third assembly hole 114

[0102] The first connecting member 12

[0103] Sleeve body 121

[0104] Sleeve end cap 122

[0105] Second assembly hole 123

[0106] Guide 13

[0107] Groove 131

[0108] Bushing 14

[0109] The second connecting member 15

[0110] Connector body 151

[0111] Fourth assembly hole 1511

[0112] Top cover 152

[0113] Fifth assembly hole 1521

[0114] Fixing part 20

[0115] First through hole 21

[0116] Housing 22

[0117] Fixed base 23

[0118] The first elastic component 30

[0119] Vertical fixing member 40

[0120] The second elastic component 50

[0121] The second elastic member 51

[0122] The third elastic member 52

[0123] Pad 60

[0124] Second through hole 61

[0125] Sliding plate 70 DETAILED DESCRIPTION

[0126] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0127] Example 1

[0128] The embodiment of the present invention discloses a battery swap station, which includes a battery swap robot, which in turn includes a battery swap device. A vehicle that needs to replace a battery pack drives into the battery swap station, and the battery swap device removes the depleted battery pack in the vehicle, and installs the fully charged battery pack on the vehicle, thereby completing the battery swap operation on the vehicle.

[0129] like Figure 1-Figure 10 As shown, the battery exchange device is arranged on the shuttle chassis 5 of the battery exchange robot, and the battery exchange device includes a battery tray 2 and a battery disassembly and assembly mechanism 4. The battery tray 2 is arranged above the shuttle chassis 5. The battery disassembly and assembly mechanism 4 is arranged on the battery tray 2 and is used to unlock or lock the fixed part of the battery pack. Among them, the battery tray 2 can elastically move parallel to and / or perpendicular to the battery pack disassembly and assembly direction relative to the shuttle chassis 5; the battery disassembly and assembly mechanism 4 can elastically move parallel to the battery pack disassembly and assembly direction and / or swing obliquely to the battery pack disassembly and assembly direction relative to the battery tray 2 at one end facing the fixed part.

[0130] It should be noted that in this embodiment, the battery pack disassembly direction is the vertical direction. In other alternative embodiments, the battery pack disassembly direction may also be other directions, such as a direction extending in a horizontal plane or a direction having an angle with the horizontal plane.

[0131] Among them, in this embodiment, the battery tray 2 can be connected to the shuttle chassis 5 in a floating manner, so that the battery tray 2 can drive the battery disassembly and assembly mechanism 4 to fine-tune its position in the battery pack disassembly and assembly direction within a certain floating space, thereby improving the adaptability of the tray installation mechanism 100, the battery tray 2 and the battery disassembly and assembly mechanism 4, and facilitating the battery disassembly and assembly mechanism 4 to align the fixed parts of the battery pack, so that the battery replacement has high stability, fast working speed and high efficiency. The end of the battery disassembly and assembly mechanism 4 can elastically move parallel to the battery disassembly and assembly direction and / or swing obliquely to the battery pack disassembly and assembly direction relative to the battery tray. Even if there is an error in the relative positioning of the battery disassembly and assembly mechanism 4 and the fixed parts, the battery disassembly and assembly mechanism can be fine-tuned within a certain floating space and can be aligned with the fixed parts, thereby unlocking or locking the fixed parts, reducing the positioning accuracy requirements and improving the alignment efficiency. At the same time, the floating in the battery pack disassembly and assembly direction can prevent the battery tray from rising excessively, resulting in a rigid collision between the protruding parts on the battery tray and the vehicle, reducing component damage and extending the service life of the battery replacement equipment.

[0132] The specific structure of the tray installation mechanism 100 is described below.

[0133] like Figure 3-8 As shown, the tray installation mechanism 100 includes a fixing portion 20, a mounting portion 10 and a tray elastic component. The mounting portion 10 is connected to the battery tray 2, and the fixing portion 20 is connected to the shuttle chassis 5. The tray elastic component is arranged between the mounting portion 10 and the fixing portion 20. The tray elastic component is elastically deformed in a direction parallel to and / or perpendicular to the battery disassembly and assembly direction, so that the mounting portion 10 can be elastically moved relative to the fixing portion 20 in a direction parallel to and / or perpendicular to the battery disassembly and assembly direction. The tray elastic component is arranged between the mounting portion 10 and the fixing portion 20, and the mounting portion 10 can be elastically moved relative to the fixing portion 20 in a direction parallel to and / or perpendicular to the battery disassembly and assembly direction by relying on the elastic deformation of the tray elastic component itself, so that the mounting portion 10 can drive the battery tray 2 to fine-tune the position in the battery pack disassembly and assembly direction within a certain floating space. The tray installation mechanism 100 has a simple overall structure and is very convenient to use.

[0134] In this embodiment, the fixing portion 20 includes a shell 22 and a fixing base 23, the fixing base 23 is arranged below the mounting portion 10 along the direction of battery pack disassembly and assembly, the shell 22 is arranged around the outside of the mounting portion 10, and the shell 22 is arranged above the fixing base 23 and connected to the fixing base 23; the tray elastic component includes a first elastic component 30 and / or a second elastic component 50, the first elastic component 30 is arranged between the mounting portion 10 and the fixing base 23, and the first elastic component 30 can be elastically deformed in a direction parallel to the battery disassembly and assembly direction; the second elastic component 50 is arranged between the mounting portion 10 and the shell 22, and the second elastic component 50 can be elastically deformed in a direction perpendicular to the battery disassembly and assembly direction.

[0135] The first elastic component 30 is disposed between the mounting portion 10 and the fixed base 23. The first elastic component 30 is retracted relative to the fixed base 23 to drive the mounting portion 10 to float in a direction parallel to the battery pack disassembly and assembly direction. The second elastic component 50 is disposed between the mounting portion 10 and the housing 22. The second elastic component 50 is retracted relative to the housing 22 to drive the mounting portion 10 to float in a direction perpendicular to the battery pack disassembly and assembly direction.

[0136] In this embodiment, the first elastic component 30 and the second elastic component 50 can both adopt springs, which have a simple and reliable structure and low cost. In other optional implementations, the first elastic component 30 and the second elastic component 50 can also adopt other elastic components such as rubber parts.

[0137] The shell 22 and the mounting portion 10 are nested in each other. On the one hand, the mounting portion 10 can transfer the floating direction perpendicular to the battery pack disassembly and assembly direction to the shell 22, so that only the mounting portion 10 needs to be connected to the battery tray 2 to simultaneously achieve floating in parallel with the battery pack disassembly and assembly direction and floating in perpendicular to the battery pack disassembly and assembly direction, thereby reducing the components connected to the mounting portion 10 and simplifying the overall structure. On the other hand, the shell 22 is arranged on the outside of the mounting portion 10, which can prevent the mounting portion 10 from being skewed during the floating process and maintain the stability of the battery tray 2 during the floating process.

[0138] In this embodiment, the fixing portion 20 is sleeved on the outside of the mounting portion 10, and there is more space between the shell 22 and the mounting portion 10 for setting the second elastic component 50. The second elastic component 50 can be arranged along the entire circumference, which is beneficial to increase the floating direction on the plane perpendicular to the battery pack disassembly and assembly direction, and further improve the adaptability of the tray mounting mechanism 100 and the battery tray 2.

[0139] like Figure 3-8As shown, the tray installation mechanism 100 is applied to a battery swap station. By setting a first elastic component 30, the installation part 10 can be connected to the fixing part 20 in a floating manner, so that the installation part 10 can drive the tray 202 to fine-tune its position in the battery pack disassembly direction within a certain floating space, thereby improving the adaptability of the tray installation mechanism 100 and the tray 202, facilitating the alignment of the sleeve of the torque gun with the fastener, and improving the efficiency of battery pack loading and unloading. In addition, the floating in the battery pack disassembly direction can prevent the tray 202 from rising excessively, resulting in a rigid collision between the protruding parts on the tray 202 and the electric vehicle, thereby extending the service life of the tray 202.

[0140] The mounting portion 10 may include a second mounting seat 11 and a first connecting member 12, wherein the second mounting seat 11 is used to mount the tray 202, one end of the first connecting member 12 is connected to the second mounting seat 11, and the other end of the first connecting member 12 is connected to the first elastic component 30. The second mounting seat 11 is connected to the first elastic component 30 through the first connecting member 12, and such a configuration increases the area where the mounting portion 10 can be connected to the first elastic component 30 or other components. For example, when there is a floating requirement in other directions, the elastic components in other directions can be directly connected to the first connecting member 12, so as to avoid the first elastic component 30 or other components interfering with the connection between the second mounting seat 11 and the tray 202.

[0141] The second mounting seat 11 includes a tray mounting end surface 111 and an extension block 112 connected up and down, and a first assembly hole 113 is provided on the tray mounting end surface 111. The second mounting seat 11 is threadedly connected to the tray 202 through the first assembly hole 113. The first connecting member 12 is connected to the extension block 112. The cross-sectional area of ​​the extension block 112 can be set to be smaller than the cross-sectional area of ​​the tray mounting end surface 111, so as to reduce the size of the entire tray mounting mechanism 100 and reduce the cost.

[0142] The first connecting member 12 includes a sleeve body 121 and a sleeve end cover 122. The sleeve end cover 122 is arranged on one side of the sleeve body 121. The sleeve body 121 is sleeved on part of the first elastic component 30. When the first elastic component 30 does not undergo elastic deformation, there is a gap of a preset distance between the fixing portion 20 and the lower end surface of the sleeve body 121. The preset distance can be a distance pre-set according to the actual floating amount requirement. The first connecting member 12 is configured in the form of a sleeve. The first elastic component 30 is connected to the second mounting seat 11 through the sleeve end cover 122, and the sleeve body 121 is convenient for matching with other components. For example, a shape-matching shell is provided outside the sleeve body 121 to prevent the first elastic component 30 from being skewed during the floating process. In addition, the sleeve body 121 can protect the first elastic component 30 from being eroded by the environment and increase the service life.

[0143] The sleeve end cover 122 is provided with a second assembly hole 123 , and the second mounting seat 11 is provided with a corresponding third assembly hole 114 . The second mounting seat 11 and the first connecting member 12 are threadedly connected via the second assembly hole 123 and the third assembly hole 114 .

[0144] The first elastic component 30 is a spring, and two ends of the first elastic component 30 abut against the sleeve end cover 122 and the fixing portion 20 respectively.

[0145] The mounting portion 10 further includes a guide portion 13, which is disposed around the outer side of the first connecting member 12; wherein the inner wall surface of the guide portion 13 matches the outer wall surface of the sleeve body 121, so that the sleeve body 121 can move along the first direction relative to the guide portion 13. The guide portion 13 with matching shape is disposed outside the sleeve body 121, so that the sleeve body 121 moves along the guide portion 13, thereby preventing the first elastic component 30 from being skewed during the floating process.

[0146] The mounting portion 10 further includes a bushing 14, which is sandwiched between the guide portion 13 and the first connecting member 12. By providing the bushing 14, the wear between the guide portion 13 and the first connecting member 12 can be reduced. The bushing 14 can be made of a flexible material such as polytetrafluoroethylene. Specifically, an outwardly recessed groove 131 is provided on the inner wall of the guide portion 13 to accommodate the bushing 14 to prevent the bushing 14 from falling off during the floating process.

[0147] The tray mounting mechanism 100 further includes a vertical stabilizing member 40, which penetrates the fixing portion 20 and the first elastic component 30 along the first direction to reach the mounting portion 10; wherein the vertical stabilizing member 40 is connected to the mounting portion 10. The vertical stabilizing member 40 is used to connect the mounting portion 10 to the fixing portion 20 to prevent the mounting portion 10 from being separated from the fixing portion 20 along the battery pack disassembly direction during the floating process.

[0148] The vertical stabilizing member 40 is a bolt, and the fixing portion 20 is provided with a first through hole 21. The bolt passes through the first elastic component 30 from the first through hole 21 and is threadedly connected to the mounting portion 10. The vertical stabilizing member 40 is in the form of a bolt, which has a simple structure and is easy to install. A certain gap is set between the first through hole 21 and the vertical stabilizing member 40, so that the vertical stabilizing member 40 has a certain margin of motion relative to the fixing portion 20. The bolt head is arranged outside the fixing portion 20, and the other end of the bolt is threadedly connected to the mounting portion 10, so as to prevent the mounting portion 10 from being separated from the fixing portion 20 on the basis of being able to float along the first direction.

[0149] In other alternative embodiments, the vertical stabilizing member 40 may also be connected to the fixing portion 20. Specifically, a bolt is inserted from top to bottom into the mounting portion 10, the first elastic component 30 and the fixing portion 20, the bolt head is arranged outside the mounting portion 10 and maintains a certain gap with the mounting portion 10, and the other end of the bolt is threadedly connected to the fixing portion 20, so that the mounting portion 10 can be prevented from being separated from the fixing portion 20 and the floating of the mounting portion 10 along the first direction can be achieved.

[0150] The fixing part 20 includes a shell 22 and a fixing base 23, the fixing base 23 is arranged below the mounting part 10 along the first direction, and the shell 22 is arranged above the fixing base 23 and is arranged around the outside of the mounting part 10; the tray mounting mechanism 100 also includes a second elastic component 50, the second elastic component 50 is arranged between the mounting part 10 and the shell 22, and the second elastic component 50 undergoes elastic deformation in a direction perpendicular to the first direction so that the mounting part 10 moves relative to the fixing part 20 in a direction perpendicular to the battery pack disassembly and assembly direction.

[0151] The fixing base 23 is used to fix the fixing part 20 on the battery exchange device 200 on one hand, and is used to connect the first elastic component 30 to achieve floating along the first direction on the other hand. By setting the second elastic component 50, the mounting part 10 can float relative to the shell 22 in a direction perpendicular to the first direction, so that the mounting part 10 can drive the tray 202 to fine-tune the position on the plane perpendicular to the first direction within a certain floating space, thereby improving the adaptability of the tray mounting mechanism 100 and the tray 202.

[0152] It should be noted that, in the present embodiment, the fixing portion 20 includes a shell 22 arranged on the outside of the mounting portion 10 to achieve fixation of the second elastic component 50. In other alternative embodiments, the fixing portion 20 may also include a fixed inner shell, the mounting portion 10 is arranged on the outside of the fixed inner shell, and the second elastic component 50 is arranged between the fixed inner shell and the mounting portion 10, which can also achieve fixation of the second elastic component 50.

[0153] The second elastic component 50 may include a second elastic member 51 arranged along the second direction and a third elastic member 52 arranged along the third direction; the second direction is perpendicular to the third direction. The second elastic member 51 and the third elastic member 52 are arranged perpendicular to each other, which optimizes the setting position of the second elastic component 50 on the tray mounting mechanism 100, and facilitates the adaptive adjustment of the mounting portion 10 in all directions within the entire horizontal plane. The second elastic member 51 and the third elastic member 52 are springs, and one end of the second elastic member 51 and the third elastic member 52 are connected to the shell 22, and the other end is connected to the mounting portion 10. Specifically, the number of the second elastic member 51 and the third elastic member 52 are both two, the two second elastic members 51 are arranged opposite to each other, and the two third elastic members 52 are arranged opposite to each other.

[0154] The tray mounting mechanism 100 may further include a second connector 15, the second connector 15 is sandwiched between the first connector 12 and the housing 22, the inner wall surface of the second connector 15 matches the outer wall surface of the first connector 12, and the second elastic component 50 is pressed between the second connector 15 and the housing 22. If the first connector 12 is directly connected to the second elastic component 50, floating in the vertical direction may cause an unstable connection between the second elastic component 50 and the first connector 12, and also cause the first connector 12 to be blocked from moving in the vertical direction. In this embodiment, by providing the second connector 15, the second connecting component can be directly provided on the second connector 15, so as not to interfere with the first connector 12, so that it can float in the vertical direction as needed.

[0155] The second connector 15 includes a connector body 151 and a top cover 152. The top cover 152 is disposed above the connector body 151. A fourth assembly hole 1511 is disposed on the top surface of the connector body 151. A fifth assembly hole 1521 is disposed on the top cover 152. The top cover 152 and the connector body 151 are connected by bolts.

[0156] It should be noted that, in this embodiment, the second connecting member 15 is the above-mentioned guide portion 13, and the two are the same component. In other alternative embodiments, the second connecting member 15 and the guide portion 13 can also be set as two different components, and the second connecting member 15 is set outside the guide portion 13.

[0157] The tray mounting mechanism 100 further includes a pad 60, which is disposed between the first elastic component 30 and the fixed base 23, wherein the upper surface of the pad 60 cooperates with the first elastic component 30, and the lower surface contacts the fixed base 23. The pad 60 can be deformed to reduce the friction force generated by the spring force in the second direction or the third direction. The fixed base 23 further includes a sliding plate 70, which is embedded in a position corresponding to the pad 60 on the surface of the fixed base 23 facing the mounting portion 10. The sliding plate 70 can slide to reduce the friction force generated by the spring force in the second direction or the third direction.

[0158] In this embodiment, the pad 60 and the sliding plate 70 are also arranged below the fixed base 23. Specifically, the pad 60 and the sliding plate 70 above the fixed base 23 are symmetrically arranged with the pad 60 and the sliding plate 70 below the fixed base 23. The pad 60 and the sliding plate 70 are provided with second through holes 61 for the vertical stabilizing member 40 to extend therein. One of the pad 60 and the sliding plate 70 is made of a polymer material, or both are made of a polymer material, such as polytetrafluoroethylene.

[0159] The number of tray installation mechanisms 100 is at least four, and at least four tray installation mechanisms 100 are evenly distributed on the tray 202. The tray installation mechanism 100 adopts the above-mentioned arrangement, which can ensure that the floating of the tray 202 is more stable, and avoid the tray 202 from tilting during the floating process, which affects the installation and alignment process. The number of tray installation mechanisms 100 is multiple, and multiple tray installation mechanisms 100 are evenly distributed at the bottom of the battery tray 2. Multiple tray installation mechanisms 100 ensure that the floating of the battery tray 2 is more stable, and avoid the battery tray 2 from tilting during the floating process, which affects the installation and alignment process, thereby achieving high stability in battery replacement, fast working speed and high efficiency. Specifically, the number of tray installation mechanisms 100 is at least four, and at least four tray installation mechanisms 100 are evenly distributed at the bottom of the battery tray 2.

[0160] The structure of the battery disassembly and assembly mechanism 4 will be described below.

[0161] In one embodiment, one end of the battery disassembly and assembly mechanism 4 facing the fixed component can be elastically moved relative to the battery tray 2 in a direction parallel to the battery disassembly and assembly direction. The end of the battery disassembly and assembly mechanism 4 will be able to move in the vertical direction relative to the battery tray 2. Even if there is an error in the relative positioning of the battery disassembly and assembly mechanism 4 and the fixed component in the vertical direction, the battery disassembly and assembly mechanism 4 can be fine-tuned within a certain floating space in the vertical direction and can be connected to the fixed component, thereby achieving unlocking or locking of the fixed component, reducing the positioning accuracy requirements and improving the alignment efficiency. At the same time, the movement of the battery disassembly and assembly mechanism 4 allows the floating in the battery pack disassembly and assembly direction to avoid excessive rising of the battery disassembly and assembly mechanism 4, which may cause a rigid collision between the battery disassembly and assembly mechanism 4 and the vehicle, thereby reducing component damage and extending the service life of the battery exchange equipment.

[0162] The battery disassembly and assembly mechanism 4 includes a first mounting seat 41, a connecting portion 42 and a disassembly and assembly portion 43. The lower end of the first mounting seat 41 is mounted on the battery tray 2. The disassembly and assembly portion 43 is used to unlock or lock the fixed parts of the battery pack. The disassembly and assembly portion 43 is connected to the first mounting seat 41 through the connecting portion 42. A third elastic component 44 is provided between the connecting portion 42 and the first mounting seat 41. The third elastic component 44 undergoes elastic deformation in a direction parallel to the battery disassembly and assembly direction so that the disassembly and assembly portion 43 can elastically move relative to the battery tray 2 in a direction parallel to the battery disassembly and assembly direction. The disassembly and assembly part 43 is connected to the first mounting seat 41 through the connecting part 42. The axes of the connecting part 42 and the first mounting seat 41 coincide with each other, and the connecting part 42 can move on the first mounting seat 41 in a direction parallel to the battery disassembly and assembly direction. The third elastic component 44 applies force to the connecting part 42 and the first mounting seat 41 respectively and is used to drive the connecting part 42 to move in a direction away from the first mounting seat 41, so that the disassembly and assembly part 43 can move elastically relative to the battery tray 2 in a direction parallel to the battery disassembly and assembly direction, and can be reset by the third elastic component 44 after the disassembly and assembly part 43 is used, and has high stability. Among them, part of the structure of the connecting part 42 is arranged in the first mounting seat 41, and the first mounting seat 41 is used to realize the installation of the connecting part 42 and the disassembly and assembly part 43, providing a reliable protection structure for the connecting part 42 and the disassembly and assembly part 43, increasing the structural stability, and the overall structure is simple and compact.

[0163] In another embodiment, the end of the battery disassembly and assembly mechanism 4 facing the fixed component can swing relative to the battery tray 2 along a direction oblique to the battery disassembly and assembly direction. The lower end of the disassembly and assembly part 43 is movably connected to the upper end of the connecting part 42, and the upper end of the disassembly and assembly part 43 can swing from the axis of the connecting part 42 to the outside of the axis of the connecting part 42, so that the disassembly and assembly part 43 can swing relative to the battery tray 2 along a direction oblique to the battery disassembly and assembly direction. Even if there is an error in the relative positioning of the battery disassembly and assembly mechanism 4 and the fixed component in the horizontal direction, the battery disassembly and assembly mechanism 4 can be fine-tuned within a certain floating space through the swing and can be connected to the fixed component, thereby realizing unlocking or locking of the fixed component, reducing the positioning accuracy requirements and improving the efficiency of aligning the fixed component.

[0164] In this embodiment, the disassembly part 43 is connected to the connecting part 42 via a pivot shaft. The swing between the disassembly part 43 and the connecting part 42 is realized by the pivot shaft, and the structure is simple and reliable. Of course, other movable connection methods can also be used between the disassembly part 43 and the connecting part 42, which are not limited here.

[0165] The battery disassembly and assembly mechanism 4 further includes a reset component 45, which is sleeved on the outer circumference of the disassembly and assembly portion 43 and the connecting portion 42, and is used to make the axis of the disassembly and assembly portion 43 coincide with the axis of the connecting portion 42. The reset component 45 is sleeved on the outer circumference of the disassembly and assembly portion 43 and drives the disassembly and assembly portion 43 to reset, so that the axis of the disassembly and assembly portion 43 can coincide with the axis of the fixing component, thereby achieving unlocking or locking of the fixing component, and having higher stability.

[0166] In this embodiment, the reset component 45 is a spring, specifically a wave spring. In other embodiments, the reset component 45 can also be other elastic materials such as a rubber sleeve, which has a simple structure and is reliable in use.

[0167] The battery disassembly and assembly mechanism 4 further includes a second driving part 46, which is in transmission connection with the connecting part 42, and the second driving part 46 applies torque to the disassembly and assembly part 43 through the connecting part 42. The second driving part 46 is used to provide a rotational driving force, and applies torque to the disassembly and assembly part 43 through the transmission of the connecting part 42, so that the twisting of the fixed part can achieve unlocking or locking, which is very convenient to use, easy to control, high precision and high stability.

[0168] In this embodiment, the battery disassembly and assembly mechanism 4 is a torque gun, the disassembly and assembly part 43 is a sleeve device, and the second driving part 46 is a motor assembly; the motor assembly drives the sleeve device to rotate through the connecting part 42. The fixed component is unlocked or locked by controlling the rotation of the sleeve device of the torque gun. The torque gun is driven by the motor assembly, has a simple and stable structure, and can achieve precise control of the torque and the number of rotations.

[0169] There are multiple battery disassembly and assembly mechanisms 4, which are distributed in an array on the battery tray 2, and the positions of the multiple battery disassembly and assembly mechanisms 4 correspond to the multiple fixed components on the battery pack. By arranging battery disassembly and assembly mechanisms 4 corresponding to the multiple fixed components on the battery pack on the battery tray 2, all battery disassembly and assembly mechanisms 4 can simultaneously unlock or lock all fixed components to achieve disassembly or installation between the battery pack and the vehicle, which greatly improves the efficiency and stability of unlocking or locking.

[0170] Example 2

[0171] like Figure 11-13As shown, the present embodiment provides another battery-swapping robot. The battery-swapping robot in the present embodiment is basically the same as the battery-swapping robot in Embodiment 1, and the main difference is that a leveling component 3 is added to the present embodiment. Among them, the same figure marks in the present embodiment and Embodiment 1 refer to the same elements. The battery-swapping robot also includes a leveling component 3, the bottom of which is connected to the chassis 5 of the shuttle vehicle, and the top of the leveling component 3 is used to cooperate with the chassis of the vehicle, so that the battery disassembly and assembly mechanism 4 located on the battery tray 2 can be leveled and aligned before unlocking or locking, so that the battery-swapping equipment can reach the leveling position, with strong adaptability, high battery-swapping stability, fast working speed and high efficiency.

[0172] The number of leveling components 3 can be multiple, and the top of the leveling component 3 has a supporting surface 31, and the multiple supporting surfaces 31 are located on the same plane. The heights of the multiple leveling components 3 are the same, and the plane formed by the top surface of the leveling component 3 is the supporting surface 31. By having multiple supporting surfaces 31 located on the same horizontal plane, the leveling is more stable and the leveling effect is better. In this embodiment, the number of leveling components 3 is four, and the four leveling components 3 are respectively located at the four corners of the shuttle chassis 5. By setting the four leveling components 3 at the four corners of the shuttle chassis 5, the structure is simple and stable; at the same time, the space formed between the four leveling components 3 will be used to set structures such as the battery tray 2 and the battery disassembly and assembly mechanism 4, and avoid the position for accommodating the battery pack, effectively avoiding interference.

[0173] The battery-swapping robot may further include a lifting mechanism 501, on which the battery tray 2 is disposed, and the lifting mechanism 501 drives the battery tray 2 to rise or fall in the direction of battery pack disassembly and assembly. After the top of the leveling component 3 is matched with the chassis of the vehicle, the battery tray 2 is lifted to the working position by the lifting mechanism 501, so that the battery disassembly and assembly mechanism 4 can be aligned with the fixed parts of the battery pack, thereby unlocking or locking the battery pack. After unlocking or locking is completed, the battery tray 2 is moved downward by the lifting mechanism 501, so that the battery disassembly and assembly mechanism 4 moves away from the vehicle, so as to facilitate the shuttle chassis 5 to drive out from under the vehicle.

[0174] In this embodiment, the battery swapping device has an initial state and a battery swapping state. When in the initial state, the leveling component 3 is higher than the battery disassembly and assembly mechanism 4. At the beginning of the battery swapping process, the vehicle is first leveled using the higher leveling component 3, after which the battery disassembly and assembly mechanism 4 performs the battery swapping operation. In other embodiments of the present invention, a lifting mechanism 501 or the like may be used so that the positional relationship between the leveling component 3 and the battery disassembly and assembly mechanism 4 can be adjusted at any time to facilitate the battery swapping operation.

[0175] The lifting mechanism 501 includes a first driving unit 511 and a transmission unit 512. The first driving unit 511 is arranged on the shuttle chassis 5, and the transmission unit 512 is connected to the first driving unit 511 and the battery tray 2 respectively. The first driving unit 511 will be used to provide driving force, and the force will be applied to the battery tray 2 through the transmission unit 512, so that the battery tray 2 can rise or fall along the direction of battery pack disassembly and assembly. The first driving unit 511 and the transmission unit 512 are used to realize the lifting and lowering of the battery tray 2. While ensuring its lifting stability, the structure is simplified as much as possible to ensure that it does not affect the battery replacement operation of the battery replacement equipment.

[0176] In this embodiment, the first driving part 511 is a motor, and the transmission part 512 is a cam. The motor drives the cam to rotate, and when the protruding part of the cam lifts the battery tray 2, the battery tray 2 is located at the working height. The structure is simple, the installation is very convenient, and the cost is low. Of course, in other optional embodiments, the first driving part 511 can also use other driving mechanisms such as hydraulic devices to provide driving force, and the transmission part 512 can also use other transmission components such as transmission rods to achieve the transmission of the force.

[0177] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A battery replacement device, characterized in that: It includes a shuttle vehicle, a battery tray and a battery disassembly mechanism; the battery tray is used to carry a battery pack, and the battery tray is connected to the top of the shuttle vehicle through a tray installation mechanism along the battery pack disassembly direction; the battery disassembly mechanism is used to unlock or lock the fixed parts of the battery pack, and the battery disassembly mechanism is arranged on the battery tray; The tray installation mechanism includes: a mounting portion, the mounting portion is connected to the battery tray; a fixing portion, the fixing portion is connected to the shuttle; The fixing part includes a shell and a fixing base, wherein the fixing base is arranged below the mounting part along the battery pack disassembly direction, the shell is arranged around the outside of the mounting part, and the shell is arranged above the fixing base and connected to the fixing base; The mounting portion includes a first mounting seat, a first connecting member and a second connecting member, wherein the first mounting seat is used to mount the battery tray; the first connecting member is connected to the first mounting seat; and the second connecting member is sandwiched between the housing and the first connecting member. The mounting portion further includes a bushing, which is clamped between the first connecting member and the second connecting member, and the first connecting member and the second connecting member slide relative to each other along the battery pack disassembly and assembly direction through the bushing.

2. The battery replacement device according to claim 1, characterized in that: The battery tray can be elastically moved relative to the shuttle vehicle in a direction parallel to and / or perpendicular to the battery pack disassembly and assembly direction; one end of the battery disassembly and assembly mechanism facing the fixed component can be elastically moved relative to the battery tray in a direction parallel to the battery pack disassembly and assembly direction and / or swing in a direction oblique to the battery pack disassembly and assembly direction; the tray mounting mechanism includes: A tray elastic component, the tray elastic component is arranged between the mounting portion and the fixing portion, and the tray elastic component is elastically deformed in a direction parallel to and / or perpendicular to the battery pack disassembly and assembly direction, so that the mounting portion is elastically moved relative to the fixing portion in a direction parallel to and / or perpendicular to the battery pack disassembly and assembly direction; Preferably, the tray elastic component includes a first elastic component and / or a second elastic component, wherein the first elastic component is arranged between the mounting portion and the fixed base, and the first elastic component can be elastically deformed in a direction parallel to the disassembly and assembly direction of the battery pack; the second elastic component is arranged between the mounting portion and the shell, and the second elastic component can be elastically deformed in a direction perpendicular to the disassembly and assembly direction of the battery pack; Preferably, the first connecting member is connected to the first elastic component; and the second elastic component is arranged between the shell and the second connecting member.

3. The battery replacement device according to claim 2, characterized in that: The mounting portion further includes a guide portion, the guide portion is arranged above the second connecting member along the battery pack disassembly and assembly direction, and the guide portion is arranged around the outer side of the first connecting member; The inner wall surface of the guide portion matches the outer wall surface of the first connecting member, so that the first connecting member can move relative to the guide portion along the battery pack disassembly and assembly direction; And / or, the first connecting member includes a sleeve body and a sleeve end cover, the sleeve body is sleeved on a portion of the first elastic component, and when the first elastic component does not undergo elastic deformation, a gap of a first preset distance exists between the fixed base and the lower end surface of the sleeve body; Preferably, the tray installation mechanism further comprises a first pad, which is arranged between the first elastic component and the fixed base, wherein the upper surface of the first pad cooperates with the first elastic component, and the lower surface of the first pad contacts with the fixed base; Preferably, the fixed base further includes a first sliding plate, and the first sliding plate is embedded in a position of the surface of the fixed base facing the mounting portion corresponding to the first pad.

4. The battery replacement device according to claim 2, characterized in that: The second elastic component includes a plurality of elastic members, and the plurality of elastic members are arranged between the second connecting member and the shell in different directions so that the mounting portion moves relative to the shell in a plane perpendicular to the disassembly direction of the battery pack; When the second elastic component does not undergo elastic deformation, a gap of a second preset distance exists between the shell and the second connecting portion; Preferably, the plurality of elastic members are arranged in pairs, and the elastic deformation directions of each pair of elastic members are on the same straight line; Preferably, the tray installation mechanism further comprises a first movable member, a first accommodating groove is circumferentially arranged on the outer wall surface of the second connecting member, and the first movable member matches with the first accommodating groove and is movable in the first accommodating groove; A first mounting hole is arranged on the inner wall surface of the mounting portion, one end of the second elastic component is embedded in the first mounting hole, and the other end is connected to the first movable member.

5. The battery replacement device according to claim 2, characterized in that: The tray mounting mechanism further includes a vertical stabilizing member, a first through hole is formed on the fixed base, the vertical stabilizing member passes through the first through hole of the fixed base and the first elastic component along the battery pack disassembly and assembly direction and is connected to the first connecting member; when the second elastic component does not undergo elastic deformation, a gap of a third preset distance is formed between the vertical stabilizing member and the edge of the first through hole; Preferably, the tray mounting mechanism further comprises a second pad, which is disposed between the vertical stabilizing member and the fixed base, wherein the lower surface of the second pad cooperates with the vertical stabilizing member and the upper surface contacts with the fixed base; Preferably, the fixed base further includes a second sliding plate, and the second sliding plate is embedded in a position of the surface of the fixed base away from the mounting portion and corresponding to the second pad.

6. The battery replacement device according to any one of claims 2 to 5, characterized in that: There are multiple tray mounting mechanisms, and the multiple tray mounting mechanisms are evenly distributed at the bottom of the battery tray.

7. The battery replacement device according to claim 1, characterized in that: The battery disassembly and assembly mechanism comprises a second mounting seat, a connecting portion and a disassembly and assembly portion, wherein the lower end of the second mounting seat is mounted on the battery tray, the disassembly and assembly portion is used to unlock or lock the fixing component of the battery pack, and the disassembly and assembly portion is connected to the second mounting seat through the connecting portion; The lower end of the disassembly portion is movably connected to the upper end of the connection portion, and the upper end of the disassembly portion can swing from the axis of the connection portion to the outside of the axis of the connection portion, so that the disassembly portion swings relative to the battery tray in a direction inclined to the battery disassembly direction; and / or A third elastic component is provided between the connecting portion and the second mounting seat, and the third elastic component is elastically deformed in a direction parallel to the battery disassembly and assembly direction, so that the disassembly and assembly portion is elastically moved relative to the battery tray in a direction parallel to the battery disassembly and assembly direction.

8. The battery replacement device according to claim 7, characterized in that: The disassembly and assembly part is connected to the connection part via a pivot shaft; And / or, the battery disassembly and assembly mechanism further comprises a reset component, the reset component is sleeved on the outer circumferential surfaces of the disassembly and assembly portion and the connecting portion, and the reset component is used to make the axis of the disassembly and assembly portion coincide with the axis of the connecting portion; And / or, the battery disassembly and assembly mechanism further comprises a second driving part, the second driving part is drivingly connected to the connecting part, and the second driving part applies a torque to the disassembly and assembly part through the connecting part; Preferably, the battery disassembly and assembly mechanism is a torque gun, the disassembly and assembly part is a sleeve device, and the second driving part is a motor assembly; the motor assembly drives the sleeve device to rotate through the connecting part.

9. The battery replacement device according to claim 7 or 8, characterized in that: There are multiple battery disassembly and assembly mechanisms, which are distributed in an array on the battery tray, and positions of the multiple disassembly and assembly mechanisms correspond one-to-one to the multiple fixing components on the battery pack.

10. A battery-swapping robot, characterized in that: It includes a battery replacement device as described in any one of claims 1-9.

11. The battery-swapping robot according to claim 10, characterized in that: The battery-exchanging robot also includes a shuttle chassis and a lifting mechanism. The shuttle is arranged on the shuttle chassis through the lifting mechanism, and the lifting mechanism drives the battery-exchanging equipment to rise or fall along the direction of battery pack disassembly and assembly.

12. A battery swap station, characterized in that: It includes a battery-changing robot as described in claim 10 or 11.

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