Unlocking device and battery swap equipment comprising same

Abstract

The application discloses an unlocking device and a battery replacing device comprising the same, and the unlocking device is used for unlocking or locking a battery box in a battery bracket on an electric vehicle, and comprises a driving mechanism, an unlocking assembly and a transmission part. The driving mechanism drives the unlocking assembly to move through the transmission part, so that the unlocking assembly drives a locking mechanism on the battery bracket to move to realize unlocking or locking of the battery box. The unlocking assembly can rotate relative to the transmission part along an axis to adapt to an angle deviation of the unlocking assembly and a standard unlocking position on the battery bracket. The battery replacing device comprises the unlocking device. Even if there is a circumferential position deviation, the unlocking assembly can be accurately aligned and connected. Meanwhile, the unlocking or locking precision is very high, the battery replacing efficiency is improved, the misoperation is effectively avoided, the safety and stability of the battery replacing device are greatly improved, and the service life of the battery box is prolonged.

Description

[0001] This application is a divisional application of the Chinese Invention Patent with the application number 202010642719.0 and the title "Unlocking device and battery swapping equipment containing the same", the filing date of which is July 6, 2020. TECHNICAL FIELD

[0002] The present application relates to an unlocking device and a battery swapping equipment containing the same. BACKGROUND

[0003] Due to the shortage of oil resources and people's growing environmental protection awareness, electric vehicles are becoming more and more widely used and have become a trend. In order to cooperate with the use of electric vehicles, battery swapping stations have also emerged. In the battery swapping station, a battery swapping robot is used to realize the quick battery swapping of the battery box of the electric vehicle.

[0004] In the prior art, the unlocking device for detaching the battery box on the electric vehicle from the electric vehicle in the battery swapping robot adopts a structure of a suction cup and a unlocking mechanism in one, that is, the unlocking device is directly arranged in the suction cup, and the unlocking device is arranged on the side opposite to the unlocking device of the battery box shell. When the battery box is unlocked from the electric vehicle, the suction cup is connected to the battery box after being adsorbed, the unlocking mechanism acts on the unlocking piece on the battery box shell body, drives the unlocking piece to move, and thus the detaching action of the battery box is completed. This unlocking method needs to directly arrange the unlocking piece on the shell body of the battery box, which affects the strength and sealing performance of the shell body, and when the unlocking piece is driven to move, the shell body is easily deformed, thereby affecting the service life of the battery box. Moreover, the unlocking device and the unlocking piece are in point-to-point contact mode, which easily causes poor alignment accuracy, unlocking failure and low battery swapping efficiency in actual use. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the defects of the prior unlocking method, that is, the unlocking piece needs to be directly arranged on the shell body of the battery box, which affects the strength and sealing performance of the shell body, easily causes the shell body to be deformed, affects the service life of the battery box, and the unlocking device and the unlocking piece are in point-to-point contact mode, which easily causes poor alignment accuracy, unlocking failure and low battery swapping efficiency in actual use. The present application provides an unlocking device and a battery swapping equipment containing the same.

[0006] The present application solves the above technical problems by the following technical solutions:

[0007] An unlocking device for unlocking or locking a battery box in a battery bracket on an electric vehicle, the unlocking device comprising a driving mechanism, an unlocking assembly and a transmission piece, the driving mechanism driving the unlocking assembly to move through the transmission piece, so that the unlocking assembly drives a locking mechanism on the battery bracket to move to unlock or lock the battery box.

[0008] The unlocking assembly is axially rotatable relative to the transmission member to adapt to angular deviation of the unlocking assembly and a standard unlocking position on the battery bracket;

[0009] The unlocking assembly comprises an unlocking rod, an end of the unlocking rod opposite to the transmission member has an insertion end for connecting an unlocking matching part on the locking mechanism on the battery bracket.

[0010] An outer surface of the insertion end has at least one abutting surface, the battery bracket is provided with an unlocking matching part connected with the locking mechanism, the insertion end is used for inserting into the unlocking matching part, and the abutting surface is matched with an inner wall surface of the unlocking matching part to rotate the unlocking matching part.

[0011] In the scheme, the above structure is adopted, the locking mechanism on the battery bracket is moved by the unlocking assembly to unlock or lock the battery box, the unlocking assembly does not directly act on the outer shell of the battery box, the strength of the outer shell of the battery box is not affected, and the service life of the battery box is improved. At the same time, the unlocking assembly can be rotated and adjusted in the circumferential direction when being connected, that is, when the position deviation between the unlocking assembly and the unlocking matching part is within a preset error range, the unlocking assembly is axially rotated to realize the connection and matching with the unlocking matching part, without the need for adjusting the position of the unlocking assembly by external force again, the connection and matching between the unlocking assembly and the unlocking matching part can be ensured even if there is a circumferential position deviation. Then, the transmission member and the unlocking assembly are moved by the driving mechanism to move the locking mechanism, thereby unlocking or locking the battery box, the unlocking or locking precision is very high, the battery replacement efficiency is improved, and the safety and stability of the battery replacement equipment are greatly improved.

[0012] In addition, the connection and disconnection are very convenient and stable, and the structure is simple.

[0013] In addition, the abutting surface applies a force to the inner wall surface of the unlocking matching part to rotate the unlocking matching part, and the rotation stability is high.

[0014] Preferably, one end of the transmission member is connected to the driving mechanism, and the other end of the transmission member is rotatably connected to the unlocking assembly.

[0015] And / or, the unlocking assembly can move on the transmission member in the axial direction of the unlocking assembly.

[0016] In the scheme, the unlocking assembly can be adjusted in the circumferential direction of the transmission member by rotating the unlocking assembly when the unlocking assembly is connected with the unlocking matching part, and the unlocking assembly is inserted into the unlocking matching part by rotating the unlocking assembly itself to adapt to the angle deviation between the unlocking assembly and the unlocking matching part, so that the stability of the unlocking device is higher during unlocking or locking.

[0017] In addition, the unlocking assembly can rotate and move axially relative to the transmission member, improving the flexibility of the movement of the unlocking assembly to realize the connection and matching with the unlocking matching part.

[0018] Preferably, the transmission member has a guide hole recessed inward in the axial direction of the transmission member from the end of the transmission member toward the unlocking assembly, and the unlocking assembly is inserted into and can move in the guide hole.

[0019] In the scheme, the guide hole has a guiding effect, so that the unlocking assembly moves in the axial direction of the transmission member in the guide hole, effectively avoiding the displacement of the unlocking assembly during movement, and greatly improving the safety and stability of the battery replacement equipment.

[0020] Preferably, the unlocking device further comprises a first elastic member located in the guide hole, and the two ends of the first elastic member abut against the transmission member and the unlocking assembly, respectively.

[0021] In the scheme, the first elastic member exerts a force on the unlocking assembly and has a certain displacement, so that when the unlocking assembly is accidentally touched, the displacement of the unlocking assembly toward the driving mechanism will not be too large due to the force of the first elastic member, effectively avoiding misoperation of the unlocking device and effectively avoiding hard collision between the unlocking assembly and the transmission member, greatly improving the safety and stability of the unlocking device. At the same time, the first elastic member is arranged in the guide hole, which is more stable.

[0022] Preferably, the end of the transmission member toward the unlocking assembly is clamped and connected with the unlocking assembly.

[0023] In the scheme, the above structure avoids the disconnection of the transmission member and the unlocking assembly, and has high safety and stability.

[0024] Preferably, the end of the transmission member toward the unlocking assembly has a limiting portion, and the unlocking assembly is provided with a matching portion connected in the limiting portion and rotatable relative to the limiting portion along the axis of the unlocking assembly.

[0025] Alternatively, the end of the transmission member towards the unlocking assembly has a matching part, and the unlocking assembly is provided with a limiting part connected in the matching part and movable along the axis of the unlocking assembly relative to the matching part.

[0026] In this scheme, the limiting part has a limiting effect, so that the matching part rotates in the limiting part along the axis of the unlocking assembly, so that the unlocking assembly can be adjusted in rotation, so that the unlocking assembly is inserted into the unlocking matching part, and the stability of the unlocking device in the unlocking or locking process is higher.

[0027] Preferably, the limiting part is an opening provided on the outer wall of the transmission member, and the opening is in communication with the guide hole.

[0028] And / or, the matching part is a sliding block provided on the unlocking assembly.

[0029] In this scheme, the opening and the sliding block are matched to realize the movement and limiting of the unlocking assembly in the transmission member.

[0030] Preferably, the length of the opening along the axial direction of the transmission member is greater than the extension length of the sliding block along the axial direction of the transmission member.

[0031] And / or, the length of the opening along the radial direction of the transmission member is greater than the extension length of the sliding block along the radial direction of the transmission member.

[0032] In this scheme, the above structure is adopted, so that the sliding block can move in the axial direction of the transmission member, and hard collision between the sliding block and the transmission member is effectively avoided when the unlocking device is misoperated, greatly improving the safety and stability of the unlocking device.

[0033] In addition, the opening reserves a rotating space for the unlocking assembly to adapt, so that when there is a small angle deviation between the unlocking assembly and the unlocking matching part, the unlocking assembly can rotate by itself through the interaction between the unlocking assembly and the unlocking matching part to adjust the angle deviation between them, and the position is aligned in the radial direction, and the connection and matching between the unlocking assembly and the unlocking matching part are realized.

[0034] Preferably, the unlocking assembly itself can be radially displaced to realize the radial movement of the unlocking assembly relative to the driving mechanism.

[0035] In this scheme, the above structure is adopted, so that the unlocking assembly can be matched and inserted into the unlocking matching part by the radial displacement of the unlocking assembly, and the stability of the unlocking device in the unlocking or locking process is higher.

[0036] Preferably, the unlocking assembly comprises a second elastic member capable of being radially twisted, two ends of the second elastic member being connected to the transmission member and the unlocking rod respectively, and the second elastic member being adapted to the radial displacement of the unlocking rod.

[0037] In the present scheme, the above structure is adopted, the second elastic member is capable of being radially twisted, so that the unlocking rod is capable of moving radially relative to the transmission member. Meanwhile, the unlocking device is connected in the axial direction and rotates around the axis, with higher stability, simple structure and convenient installation and connection.

[0038] Preferably, one end of the insertion end away from the transmission member has a guide sliding surface connected to the abutting surface and used for guiding the insertion of the unlocking rod into the unlocking matching member.

[0039] In the present scheme, the above structure is adopted, the guide sliding surface has a guide sliding effect, so that the insertion end can ensure the stable entry of the abutting surface into the unlocking matching member even if there is a slight positional deviation.

[0040] Preferably, the unlocking assembly further comprises a connecting sleeve, one end of the connecting sleeve being connected to the second elastic member, and the other end of the connecting sleeve being connected to the transmission member.

[0041] In the present scheme, the above structure is adopted, the transmission member and the second elastic member are connected in sequence through the connecting sleeve, so that the unlocking device is connected in the axial direction and radially twisted around the axis, with higher stability and convenient installation and connection.

[0042] Preferably, the end of the connecting sleeve towards the transmission member is rotatably connected to the transmission member.

[0043] And / or, the connecting sleeve is snap-fit connected to the transmission member.

[0044] In the present scheme, the above structure is adopted, the connecting sleeve and the transmission member are connected with high stability.

[0045] Preferably, one end of the unlocking rod towards the second elastic member has a connecting groove extending along the axial direction of the unlocking rod, and the unlocking rod is connected to the second elastic member through the connecting groove.

[0046] In the present scheme, the above structure is adopted, the connecting groove is used to connect the unlocking rod and the second elastic member, with convenient installation and connection. Meanwhile, the unlocking assembly rotates along the axis, so that the unlocking device has higher stability during the unlocking or locking process.

[0047] Preferably, the unlocking device further comprises a first detection unit for detecting whether the unlocking assembly moves in the direction close to the driving mechanism.

[0048] In the scheme, the above structure is adopted, the first detection unit can detect whether the unlocking assembly is located in the unlocking position in the unlocking matching part, the safety and stability of the battery replacing equipment in the battery replacing process is greatly improved; meanwhile, the precise control of the unlocking process is realized, the whole process is automatically and accurately controlled, no manual adjustment is needed, and the unlocking efficiency is improved.

[0049] Preferably, a detection part is further arranged on the unlocking assembly, and the first detection unit is used to detect the position of the detection part.

[0050] In the scheme, the above structure is adopted, the detection is accurate, the misoperation is avoided, and the safety and stability of the battery replacing equipment is greatly improved. Meanwhile, the structure is simple, the processing and manufacturing are convenient, and the cost is low.

[0051] Preferably, the driving mechanism comprises a rotating unit, the rotating unit is connected to the transmission member through a connecting shaft sleeve and is used to drive the unlocking assembly to rotate along the axis of the unlocking assembly.

[0052] In the scheme, the connecting shaft sleeve is used to connect the rotating unit and the transmission member, the matching assembly connection is facilitated, the rotation of the transmission member along the axis is ensured, and the stability of the unlocking device in the unlocking or locking process is higher.

[0053] Preferably, the driving mechanism further comprises a detection module, the detection module is electrically connected to the rotating unit and is used to detect the rotating torque of the rotating unit.

[0054] In the scheme, the above structure is adopted, and the safety and stability of the battery replacing equipment in the battery replacing process are further improved.

[0055] Preferably, the unlocking device further comprises a mounting seat, and the rotating unit is arranged on the mounting seat.

[0056] In the scheme, the above structure is adopted, the unlocking assembly is facilitated to be moved as a whole, the mounting and setting are facilitated, and the connection stability is high.

[0057] Preferably, the mounting seat is provided with a limiting hole, the transmission member is inserted into the limiting hole and connected with the rotating unit.

[0058] In the scheme, the above structure is adopted, the limiting hole plays a limiting role, the offset and misalignment of the transmission member in the rotating process are effectively avoided, and the safety and stability of the battery replacing equipment are greatly improved.

[0059] Preferably, the limiting hole is provided with a bearing, and the bearing is sleeved on the transmission member.

[0060] In the scheme, the above structure is adopted, and the rotation of the transmission member is more stable through the bearing.

[0061] Preferably, the driving mechanism further comprises a driving unit and a first mounting plate, the mounting seat is connected to the first mounting plate, and the driving unit is connected to the first mounting plate and used to drive the first mounting plate to move along the axial direction of the unlocking assembly.

[0062] In the scheme, the above structure is adopted, the first mounting plate is driven by the driving unit, the accurate matching of the unlocking assembly and the unlocking matching part is further ensured, and the stability of the battery replacing equipment is greatly improved.

[0063] Preferably, the unlocking device further comprises a second mounting plate, the driving unit is arranged on the second mounting plate, and the driving unit drives the first mounting plate to be slidable relative to the second mounting plate.

[0064] In the scheme, the above structure is adopted, the unlocking device is conveniently assembled and arranged, and the unlocking device is modularized, so that the unlocking device is more convenient to use.

[0065] Preferably, at least one guide component is arranged between the first mounting plate and the second mounting plate, and the first mounting plate moves along the axial direction of the unlocking assembly through the guide component.

[0066] In the scheme, the above structure is adopted, the guide component has a guiding effect, the first mounting plate moves along the axial direction of the unlocking assembly on the second mounting plate through the guide component, the stability is higher, and the accuracy of the unlocking device is greatly improved.

[0067] Preferably, the unlocking device further comprises a second detection unit, the second detection unit is arranged at one end of the second mounting plate close to the unlocking assembly, and the second detection unit is used to detect whether the first mounting plate moves to the position of the locking mechanism.

[0068] In the scheme, the above structure is adopted, the second detection unit detects whether the first mounting plate moves to the position horizontally, the subsequent control of the rotation of the unlocking assembly is facilitated, and the stability of the unlocking or locking process is improved.

[0069] Preferably, the unlocking device further comprises a third detection unit, the third detection unit is arranged at one end of the second mounting plate away from the locking mechanism, and the third detection unit is used to detect whether the first mounting plate returns to the initial position.

[0070] In the scheme, the above structure is adopted, the limit position of the first mounting plate moving backward is detected by the third detection unit, the first mounting plate continues to move backward is effectively avoided, the safety and stability of the unlocking device is further improved, and the first mounting plate is ensured to return to the initial position, so that subsequent operation is facilitated.

[0071] An equipment for battery replacement, which comprises the unlocking device as described above.

[0072] In the scheme, the above structure is adopted, the unlocking assembly can be accurately aligned and connected even if there is a circumferential position deviation, so that the battery box is unlocked or locked, the unlocking or locking precision is very high, the battery replacement efficiency is improved, the misoperation is effectively avoided, and the safety and stability of the equipment for battery replacement is greatly improved.

[0073] Preferably, the equipment for battery replacement further comprises a battery tray, and the unlocking device is connected to the battery tray.

[0074] In the scheme, the above structure is adopted, the top of the battery tray is used for placing the battery box, and the unlocking device is mounted on the bottom surface of the battery tray, so that the battery box in the battery bracket of the electric vehicle is unlocked or locked.

[0075] On the basis of common sense in the art, the above preferred conditions can be combined arbitrarily, that is, the preferred examples of the present application are obtained.

[0076] The positive progress effect of the present application is that:

[0077] The unlocking device and the equipment for battery replacement comprising the same, the unlocking assembly is axially rotatable relative to the transmission member, so as to adapt to the angle deviation of the unlocking assembly and the standard unlocking position on the battery bracket. The unlocking assembly can be rotated and adjusted in the circumferential direction when connected, so that the unlocking assembly can be accurately aligned and connected even if there is a circumferential position deviation. At the same time, the transmission member and the unlocking assembly are driven to move by the driving mechanism to drive the locking mechanism to move, so that the battery box is unlocked or locked, the unlocking or locking precision is very high, the battery replacement efficiency is improved, the misoperation is effectively avoided, and the safety and stability of the equipment for battery replacement is greatly improved. The locking mechanism on the battery bracket is moved by the unlocking assembly to unlock or lock the battery box, the unlocking assembly does not directly act on the outer shell of the battery box, the influence on the strength of the outer shell of the battery box is avoided, and the service life of the battery box is improved. BRIEF DESCRIPTION OF DRAWINGS

[0078] Figure 1 Part structure schematic diagram of the equipment for battery replacement of the embodiment of the present application.

[0079] Figure 2 Structure schematic diagram of the unlocking device of the embodiment of the present application.

[0080] Figure 3 Internal structure diagram of the unlocking device of the embodiment of the present application.

[0081] Figure 4 Structure diagram of the unlocking matching part of the embodiment of the present application.

[0082] Figure 5 Structure diagram of the unlocking device and the unlocking matching part of the embodiment of the present application.

[0083] Figure 6 Structure diagram of the unlocking device of the embodiment of the present application when inserted into the unlocking matching part.

[0084] Figure 7 Structure diagram of the unlocking device and the unlocking matching part of the embodiment of the present application.

[0085] Explanation of reference signs:

[0086] Driving mechanism 1

[0087] Rotating unit 11

[0088] Connecting sleeve 111

[0089] Driving unit 12

[0090] First mounting plate 13

[0091] Transmission member 2

[0092] Guide hole 21

[0093] Opening 22

[0094] Unlocking assembly 3

[0095] Slide 31

[0096] Second elastic member 32

[0097] Unlocking rod 33

[0098] Abutting surface 331

[0099] Guide sliding surface 332

[0100] Connecting groove 333

[0101] Connecting sleeve 34

[0102] Detection part 341

[0103] First elastic member 4

[0104] First detection unit 5

[0105] Mounting seat 6

[0106] Limiting hole 61

[0107] Bearing 62

[0108] Second mounting plate 7

[0109] Second detection unit 8

[0110] Third detection unit 9

[0111] Battery tray 100

[0112] Unlocking matching part 200 DETAILED DESCRIPTION

[0113] The present application will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0114] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the battery replacing device of the present application is used for side battery replacing of the electric vehicle, the battery box is installed in the mounting space on both sides of the bottom of the electric vehicle through the battery bracket, the battery replacing device is used for unlocking the old battery box on the battery bracket, taking out the old battery box from the battery bracket, or installing the new battery box in the battery bracket, and locking the installed new battery box. In Figure 3 , only the lower part structure of the battery replacing device is shown, and the upper part structure is omitted.

[0115] The battery replacing device comprises an unlocking device and a battery tray 100, and the unlocking device is connected to the battery tray 100. The unlocking device is arranged on the bottom of the battery tray 100, and the battery tray 100 is moved in the first direction to take or place the battery box during the battery replacing operation, the first direction is along the width direction of the electric vehicle. The top of the battery tray 100 is used for placing the battery box, the unlocking device is arranged on the bottom surface of the battery tray 100, and the unlocking device is used for unlocking or locking the battery box in the battery bracket of the electric vehicle.

[0116] The unlocking device comprises a driving mechanism 1, an unlocking assembly 3 and a transmission member 2, the driving mechanism 1 drives the unlocking assembly 3 to move through the transmission member 2, so that the unlocking assembly 3 drives the locking mechanism on the battery bracket to move to realize the unlocking or locking of the battery box; the unlocking assembly 3 is axially rotatable relative to the transmission member 2 to adapt to the angular deviation of the unlocking assembly 3 and the standard unlocking position on the battery bracket. In the embodiment, the locking, unlocking and driving of the battery box on the battery bracket are realized in a rotating manner, and in other embodiments, the locking, unlocking and driving can also be realized in other movement manners, such as axial extension, radial displacement and the like.

[0117] The driving mechanism 1 is mounted and connected to the battery tray 100, the transmission member 2 and the unlocking assembly 3 are driven to rotate through the driving mechanism 1, the unlocking assembly 3 is matched and connected with the unlocking matching part 200 of the locking mechanism and rotates together, so as to realize the unlocking or locking of the battery box. The unlocking assembly 3 drives the locking mechanism on the battery bracket to move to unlock or lock the battery box, which avoids the direct action of the unlocking assembly 3 on the outer shell of the battery box, does not affect the strength of the outer shell of the battery box, and improves the service life of the battery box. At the same time, the unlocking assembly 3 is axially rotatable relative to the transmission member 2 to adapt to the angular deviation of the unlocking assembly 3 and the standard unlocking position on the battery bracket, so that the unlocking assembly 3 can be rotated and adjusted in the circumferential direction when being connected, that is, when the position deviation of the unlocking assembly 3 and the unlocking matching part 200 is within the preset error range, the unlocking assembly 3 is axially rotated to realize the connection and matching with the unlocking matching part 200, without the need for adjusting the position of the unlocking assembly 3 by external force, so that the connection and matching between the unlocking assembly 3 and the unlocking matching part 200 can be ensured even if there is a circumferential position deviation. Then, the transmission member 2 and the unlocking assembly 3 are driven to move by the driving mechanism 1 to drive the locking mechanism to move, so as to realize the unlocking or locking of the battery box, the unlocking or locking precision is very high, the battery replacement efficiency is improved, the misoperation is effectively avoided, and the safety and stability of the battery replacement equipment are greatly improved.

[0118] In the embodiment, the battery box can have a lock slot, the locking mechanism comprises a rotating insert, the rotating insert is arranged on the battery bracket, and the rotating insert is connected to the unlocking matching part 200. The movement of the unlocking assembly 3 will drive the unlocking matching part 200 to move, the movement of the unlocking matching part 200 will drive the rotating insert to rotate, according to the different rotating directions, the rotating insert can be inserted into the lock slot on the battery box or withdrawn from the lock slot, so as to realize the locking or unlocking of the battery box. The specific structure of the locking mechanism is not limited in the embodiment.

[0119] As Figure 2As shown, one end of the transmission member 2 is connected to the driving mechanism 1, and the other end of the transmission member 2 is rotatably connected to the unlocking assembly 3. The transmission member 2 and the unlocking assembly 3 can be rotatably connected, so that the unlocking assembly 3 can rotate relative to the transmission member 2 when the unlocking assembly 3 is connected to the unlocking matching part 200. The unlocking assembly 3 can rotate by itself to adapt to the angle deviation between the unlocking assembly 3 and the unlocking matching part 200, so that the unlocking assembly 3 is inserted into the unlocking matching part 200, and the stability of the unlocking device during unlocking or locking is higher.

[0120] The unlocking assembly 3 can move on the transmission member 2 in the axial direction of the unlocking assembly 3. The unlocking assembly 3 can rotate and move axially relative to the transmission member 2, which improves the flexibility of the movement of the unlocking assembly 3 and realizes the connection and matching with the unlocking matching part 200.

[0121] As shown, Figure 3 The transmission member 2 has a guide hole 21, which is recessed inward in the axial direction of the transmission member 2 from the end of the transmission member 2 towards the unlocking assembly 3. The unlocking assembly 3 is inserted into the guide hole 21 and can move in the guide hole 21. The guide hole 21 has a guiding effect, so that the unlocking assembly 3 moves in the guide hole 21 in the axial direction of the transmission member 2, effectively avoiding the displacement of the unlocking assembly 3 during movement, and greatly improving the safety and stability of the battery swapping equipment.

[0122] The unlocking device further comprises a first elastic member 4, which is located in the guide hole 21 and has two ends abutting against the transmission member 2 and the unlocking assembly 3, respectively. The first elastic member 4 abuts against the unlocking assembly 3 and applies a force to the unlocking assembly 3 in the direction close to the locking mechanism. When the unlocking assembly 3 enters the predetermined position in the unlocking matching part 200 on the battery bracket, the unlocking assembly 3 will be subjected to a force from the unlocking matching part 200 and move in the guide hole 21 in the direction close to the driving mechanism 1. During the movement of the unlocking assembly 3 towards the driving mechanism, the first elastic member 4 will be compressed. When the unlocking assembly 3 moves away from the unlocking matching part 200, the first elastic member 4 will drive the unlocking assembly 3 to return to the initial position. The first elastic member 4 applies a force to the unlocking assembly 3 and has a certain displacement, so that when the unlocking assembly 3 is accidentally touched, the displacement of the unlocking assembly 3 in the direction close to the driving mechanism 1 will not be too large due to the force of the first elastic member 4. This effectively avoids the misoperation of the unlocking device and effectively avoids the hard collision between the unlocking assembly 3 and the transmission member 2, greatly improving the safety and stability of the unlocking device. At the same time, the first elastic member 4 is arranged in the guide hole 21, which is more stable. The first elastic member 4 can be a spring.

[0123] The end of the transmission member 2 towards the unlocking assembly 3 is in clamping connection with the unlocking assembly 3. The clamping connection between the transmission member 2 and the unlocking assembly 3 avoids the disengagement of the transmission member 2 from the unlocking assembly 3, and has high safety and stability.

[0124] In the embodiment, the end of the transmission member 2 towards the unlocking assembly 3 is provided with a limiting portion, and the unlocking assembly 3 is provided with a matching portion connected in the limiting portion and rotatable relative to the limiting portion along the axis of the unlocking assembly 3. The transmission member 2 is in clamping connection with the matching portion on the unlocking assembly 3 through the limiting portion. The limiting portion has a limiting effect, so that the matching portion rotates along the axis of the unlocking assembly 3 in the limiting portion, thereby the unlocking assembly 3 can be adjusted in rotation, and the unlocking assembly 3 is inserted into the unlocking matching member 200, so that the unlocking device has higher stability in the process of unlocking or locking.

[0125] The limiting portion is an opening 22 provided on the outer wall of the transmission member 2, and the opening 22 is in communication with the guide hole 21. The guide hole 21 is formed at the end of the transmission member 2, and the opening 22 is formed on the outer wall of the transmission member 2, so as to limit the movement of the unlocking assembly 3.

[0126] The matching portion is a sliding block 31 provided on the unlocking assembly 3. The sliding block 31 is rotatable along the axis of the unlocking assembly 3 in the opening 22, and is in clamping connection with the opening 22, so as to limit the axial rotation angle and the movement distance of the unlocking assembly 3. The sliding block 31 can adaptively adjust the angle deviation between the unlocking assembly 3 and the unlocking matching member 200, and can also drive the unlocking assembly 3 to rotate by a preset angle to realize the locking or unlocking of the battery box, so as to avoid the disengagement of the unlocking assembly 3 from the transmission member 2, and improve the efficiency and stability of the unlocking or locking process.

[0127] As shown in Figure 5 and Figure 6 , the length of the opening 22 along the axial direction of the transmission member 2 is greater than the extension length of the sliding block 31 along the axial direction of the transmission member 2. Therefore, the sliding block 31 can move along the axial direction of the transmission member 2 in the opening 22, and effectively avoids the hard collision between the sliding block 31 and the transmission member 2 when the unlocking device is misoperated, so as to greatly improve the safety and stability of the unlocking device.

[0128] The length of the opening 22 along the radial direction of the transmission member 2 is greater than the extension length of the sliding block 31 along the radial direction of the transmission member 2. Through the above setting, the opening 22 reserves a rotating space for the unlocking assembly 3 to adaptively rotate, so as to satisfy that when there is a small angle deviation between the unlocking assembly 3 and the unlocking matching member 200, the unlocking assembly 3 can rotate itself to adjust the angle deviation between the unlocking assembly 3 and the unlocking matching member 200 through the interaction between the unlocking assembly 3 and the unlocking matching member 200, so as to realize the radial position alignment and the connection and matching between the unlocking assembly 3 and the unlocking matching member 200.

[0129] In the attached Figure 5In the embodiment, the unlocking assembly 3 has an angular deviation with the unlocking matching part 200 before being inserted into the unlocking matching part 200, and the slider 31 is located at the middle position of the opening 22 in the circumferential direction. In the embodiment, the unlocking assembly 3 is moved along the direction close to the unlocking matching part 200 and is inserted into the unlocking matching part 200, the unlocking assembly 3 is axially rotatable relative to the transmission part 2, and the slider 31 is rotated in the circumferential direction in the opening 22 and is located at one end of the opening 22. Figure 6 In the embodiment, the unlocking assembly 3 has an angular deviation with the unlocking matching part 200 before being inserted into the unlocking matching part 200, and the slider 31 is located at the middle position of the opening 22 in the circumferential direction. In the embodiment, the unlocking assembly 3 is moved along the direction close to the unlocking matching part 200 and is inserted into the unlocking matching part 200, the unlocking assembly 3 is axially rotatable relative to the transmission part 2, and the slider 31 is rotated in the circumferential direction in the opening 22 and is located at one end of the opening 22.

[0130] Of course, in other embodiments, the end of the transmission part 2 towards the unlocking assembly 3 has a matching part, and the unlocking assembly 3 is provided with a limiting part connected in the matching part and movable along the axis of the unlocking assembly 3 relative to the matching part. That is, an opening is formed on the unlocking assembly 3, and a slider is arranged on the transmission part 2. As long as the unlocking assembly 3 and the transmission part 2 can rotate in the circumferential direction and move in the axial direction, the specific structure can not be limited.

[0131] The unlocking assembly 3 and the transmission part 2 not only need to be adjusted in the circumferential direction of the unlocking assembly 3, but also have the case that the axis of the unlocking assembly 3 and the axis of the unlocking matching part 200 are not accurately aligned, that is, there is a slight positional deviation and not on the same straight line. In order to adapt to the case that the alignment is not accurate, the unlocking assembly 3 itself can be radially displaced, so that the unlocking assembly 3 can be radially moved relative to the driving mechanism 1. In the case that the driving mechanism 1 is fixed, the unlocking assembly 3 itself can be radially displaced, so that the unlocking assembly 3 can be matched and inserted into the unlocking matching part 200, and the stability of the unlocking device in the unlocking or locking process is higher. Figure 7

[0132] The unlocking assembly 3 includes a second elastic part 32 which can be radially twisted and an unlocking rod 33, both ends of the second elastic part 32 are connected to the transmission part 2 and the unlocking rod 33 respectively, and the second elastic part 32 is adapted to the radial displacement of the unlocking rod 33. The second elastic part 32 can be radially twisted, so that the unlocking rod 33 can be radially moved relative to the transmission part 2. At the same time, the transmission part 2, the second elastic part 32 and the unlocking rod 33 are connected in sequence, which ensures that the unlocking device is connected in the axial direction and rotates around the axis, has higher stability, and has simple structure and convenient installation and connection.

[0133] ​The end of the unlocking rod 33, which is away from the transmission member 2, has an insertion end for connecting with an unlocking matching part 200 on the locking mechanism on the matching battery bracket. The battery tray 100 will drive the unlocking device to extend synchronously in the extending process, and the insertion end of the unlocking rod 33 will be connected with the unlocking matching part 200 by insertion, so as to drive the unlocking rod 33 to rotate to drive the unlocking matching part 200 to rotate, thereby realizing the unlocking or locking of the locking mechanism. After the operation is completed, the insertion end will be disconnected with the unlocking matching part 200 by the retraction of the battery tray 100, thereby realizing the separation. The connection and disconnection are very convenient, and the stability is high, and the structure is simple.

[0134] The outer surface of the insertion end has at least one abutting surface 331, the battery bracket is provided with the unlocking matching part 200 connected with the locking mechanism, and the insertion end is used for inserting into the unlocking matching part 200, and the abutting surface 331 is matched with the inner wall surface of the unlocking matching part 200, so as to realize the rotation of the unlocking matching part 200. When the unlocking rod 33 rotates, the abutting surface 331 is matched with the inner wall surface of the unlocking matching part 200, so that the abutting surface 331 will exert a force on the unlocking matching part 200 and drive the unlocking matching part 200 to rotate, thereby driving the locking mechanism to rotate to unlock or lock the battery box. The abutting surface 331 exerts a force on the inner wall surface of the unlocking matching part 200 to drive the unlocking matching part 200 to rotate, and the rotation stability is high. In the embodiment, the number of the abutting surfaces 331 is multiple, and the shapes surrounded by the multiple abutting surfaces 331 can be non-circular to drive the unlocking matching part 200 to rotate. The square structure surrounded by the multiple abutting surfaces 331 can realize the accurate alignment and connection of the unlocking assembly 3 even if there is a small deviation in the circumferential position of the unlocking rod 33. Of course, in other embodiments, the number of the abutting surfaces 331 is not limited.

[0135] The end of the insertion end, which is away from the transmission member 2, has a guide sliding surface 332 connected to the abutting surface 331 and used for guiding the insertion of the unlocking rod 33 into the unlocking matching part 200. The guide sliding surface 332 has a guide sliding effect, and can adapt to the small positional deviation between the unlocking rod 33 and the unlocking matching part 200. When the insertion end is inserted into the unlocking matching part 200, the guide sliding surface 332 first plays a guide sliding role and is first inserted into the unlocking matching part 200, so that the insertion end can ensure that the abutting surface 331 stably enters the unlocking matching part 200 even if there is a small positional deviation. In the embodiment, one end of the guide sliding surface 332 is connected to the abutting surface 331, and the other end is inclined to extend towards the axis of the unlocking rod 33 and away from the abutting surface 331.

[0136] As Figure 2 , Figure 3 ,Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown in the figures, during the process of inserting into the unlocking matching part 200, when there is an angular deviation between the unlocking rod 33 and the unlocking matching part 200, the slider 31 is located in the opening 22 and can rotate in the opening 22, so that the unlocking assembly 3 can rotate around the axis relative to the transmission part 2, thereby solving the problem of angular deviation and realizing angular alignment. When there is an axial deviation between the unlocking rod 33 and the unlocking matching part 200, the unlocking rod 33 contacts each other between the unlocking matching parts 200, and the unlocking rod 33 will slide into the unlocking matching part 200 through the guide sliding surface 332. Since the second elastic member 32 can be twisted radially, even if there is an axial deviation between the unlocking assembly 3 and the unlocking matching part 200, the unlocking rod 33 can still stably enter the unlocking matching part 200. After the unlocking rod 33 is inserted into the unlocking matching part 200 to the bottom, the driving mechanism 1 continues to drive the unlocking assembly 3 to move in the direction of approaching the unlocking matching part 200, so that the slider 31 moves in the opening 22 in the direction of approaching the driving mechanism 1.

[0137] The end of the unlocking rod 33 facing the second elastic member 32 has a connecting groove 333 extending in the axial direction of the unlocking rod 33, and the unlocking rod 33 is connected to the second elastic member 32 through the connecting groove 333. The connection between the unlocking rod 33 and the second elastic member 32 can be achieved by inserting the second elastic member 32 into the connecting groove 333, which is convenient for installation and connection. At the same time, the unlocking assembly 3 is arranged in the axial direction, which ensures that the unlocking assembly 3 rotates around the axis, thereby achieving higher stability during the unlocking or locking process of the unlocking device.

[0138] The unlocking assembly 3 further comprises a connecting sleeve 34, one end of the connecting sleeve 34 being connected to the second elastic member 32, and the other end of the connecting sleeve 34 being connected to the transmission part 2. The transmission part 2 and the second elastic member 32 are connected in series through the connecting sleeve 34, which ensures that the unlocking device is connected in the axial direction and twisted radially around the axis, thereby achieving higher stability and convenient installation and connection. The first elastic member 4 can be a flexible shaft, and the materials of the connecting sleeve 34 and the unlocking rod 33 can be metal.

[0139] The end of the connecting sleeve 34 facing the transmission part 2 is rotatably connected to the transmission part 2. In this embodiment, the end of the connecting sleeve 34 is inserted into the guide hole 21, and the slider 31 is connected to the outer wall of the connecting sleeve 34 and located in the opening 22. The length of the connecting sleeve 34 in the radial direction of the transmission part 2 is greater than the extension length of the slider 31 in the radial direction of the transmission part 2, so that the connecting sleeve 34 is rotatably connected to the transmission part 2. At the same time, the connecting sleeve 34 is connected to the transmission part 2 through the slider 31 and the opening 22, thereby achieving high connection stability.

[0140] The unlocking device further comprises a first detection unit 5 for detecting whether the unlocking assembly 3 moves in a direction close to the driving mechanism 1. During the unlocking or locking process, the insertion end of the unlocking assembly 3 needs to be accurately positioned and inserted into the unlocking matching part 200. The unlocking assembly 3 will move in the direction close to the driving mechanism 1 due to the abutting force of the unlocking matching part 200. When the first detection unit 5 detects that the unlocking assembly 3 moves into the detection area of the first detection unit 5, it indicates that the insertion end is inserted into the unlocking matching part 200, and the next step of driving the unlocking assembly 3 to rotate can be continued. If the first detection unit 5 does not detect the unlocking assembly 3 all the time, it indicates that the unlocking assembly 3 is not inserted into the unlocking matching part 200 due to misalignment between the unlocking assembly 3 and the unlocking matching part 200. At this time, the unlocking assembly 3 can be controlled to stop moving in the direction close to the unlocking matching part 200.

[0141] The first detection unit 5 can detect whether the unlocking assembly 3 is located at the unlocking position in the unlocking matching part 200, which greatly improves the safety and stability of the battery replacement equipment during the battery replacement process and realizes accurate control of the unlocking process. That is, the unlocking lever 33 reaches the unlocking position and then performs the unlocking or locking operation. The whole process is automatically and accurately controlled without human adjustment, which improves the unlocking efficiency and avoids collision and misoperation caused by the continuous movement of the unlocking lever 33 in the direction close to the battery bracket when the unlocking lever 33 is misaligned with the unlocking matching part 200.

[0142] The unlocking assembly 3 is further provided with a detection part 341, and the first detection unit 5 is used for detecting the position of the detection part 341. When the unlocking assembly 3 is aligned and inserted into the unlocking matching part 200, the detection part 341 will move in the direction close to the driving mechanism 1. In this embodiment, the detection part 341 is located on the outer surface of the connecting sleeve 34 and protrudes outward. The first detection unit 5 detects whether the unlocking assembly 3 moves in the direction close to the driving mechanism 1 by detecting the distance between the connecting sleeve 34. In the initial state, the detection part 341 is not located in the detection area of the first detection unit 5. When the unlocking lever 33 is inserted into the unlocking matching part 200, the detection part 341 will move in the direction close to the driving mechanism 1 to the detection area of the first detection unit 5. The first detection unit 5 can detect the detection part 341, which indicates that the unlocking lever 33 enters the unlocking matching part 200 and reaches the unlocking position. When the first detection unit 5 does not detect the movement of the detection part 341 to the detection area, it indicates that the unlocking lever 33 is not aligned with the unlocking matching part 200, and the unlocking lever 33 can be controlled to stop moving. The first detection unit 5 is used for detecting the position of the detection part 341, which is accurate and avoids misoperation, greatly improving the safety and stability of the battery replacement equipment. The first detection unit 5 can be an inductor. Preferably, the first detection unit 5 can be a proximity sensor.

[0143] The driving mechanism 1 comprises a rotating unit 11 connected to the transmission member 2 through a connecting sleeve 111 and used for driving the unlocking assembly 3 to rotate along the axis of the unlocking assembly 3. The rotating unit 11 is connected to the transmission member 2 through the connecting sleeve 111, facilitating matching assembly connection and ensuring that the transmission member 2 rotates along its axis, thereby achieving higher stability of the unlocking device during unlocking or locking.

[0144] The driving mechanism 1 further comprises a detection module (not shown in the figure) electrically connected to the rotating unit 11 and used for detecting the rotating torque of the rotating unit 11. When the rotating unit 11 rotates, the detection module detects whether the torque of the rotating unit 11 is within a standard torque range. If the detected torque is within the standard torque range, it indicates that the unlocking rod 33 drives the unlocking matching part 200 to unlock or lock the locking mechanism on the battery bracket in place. If the detected torque is not within the standard torque range, it indicates that the locking mechanism is not unlocked or locked in place, and the next step of taking the battery box or disconnecting the battery box cannot be performed, thereby avoiding battery replacement failure caused by the battery box not being safely unlocked or locked, and further improving the safety and stability of the battery replacement equipment during the battery replacement process. Of course, whether the unlocking rod 33 is inserted into the unlocking matching part 200 can also be determined by detecting whether the rotating amount of the rotating unit 11 when driving the unlocking rod 33 to rotate falls within a preset rotating amount range. The standard torque range includes a locking standard torque range and an unlocking standard torque range. The locking standard torque range refers to the rotating torque of the unlocking rod 33 inserted into the unlocking matching part 200 to drive the locking mechanism to lock the battery box. The unlocking standard torque range refers to the rotating torque of the unlocking rod 33 inserted into the unlocking matching part 200 to drive the locking mechanism to unlock the battery box.

[0145] The unlocking device further comprises a mounting seat 6, and the rotating unit 11 penetrates the mounting seat 6. The rotating unit 11 is mounted and fixed on the mounting seat 6, facilitating overall movement of the unlocking assembly 3, and being convenient to install and having high connection stability.

[0146] The mounting seat 6 is provided with a limiting hole 61, and the transmission member 2 is inserted into the limiting hole 61 and connected to the rotating unit 11. The limiting hole 61 limits the transmission member 2 from being offset during rotation, thereby greatly improving the safety and stability of the battery replacement equipment. Preferably, the limiting hole 61 is provided with a bearing 62, and the bearing 62 is sleeved on the transmission member 2. The bearing 62 ensures that the transmission member 2 rotates more stably.

[0147] The driving mechanism 1 further comprises a driving unit 12 and a first mounting plate 13, the mounting seat 6 is connected to the first mounting plate 13, and the driving unit 12 is connected to the first mounting plate 13 and is used to drive the first mounting plate 13 to move in the axial direction of the unlocking assembly 3. The driving unit 12 and the first mounting plate 13 can be mounted on the battery tray 100 and move towards the battery cradle along with the battery tray 100. By driving the first mounting plate 13 through the driving unit 12, the first mounting plate 13 moves in the axial direction of the unlocking assembly 3 relative to the battery tray 100, that is, moves towards the unlocking matching part 200 on the battery cradle, further ensures the accurate matching of the unlocking assembly 3 and the unlocking matching part 200, and greatly improves the stability of the battery replacing device.

[0148] The unlocking device further comprises a second mounting plate 7, and the driving unit 12 is arranged on the second mounting plate 7, and the driving unit 12 drives the first mounting plate 13 to be slidable relative to the second mounting plate 7. In the embodiment, the driving unit 12 and the first mounting plate 13 are not directly mounted on the battery tray 100, and the driving unit 12 and the first mounting plate 13 are both mounted on the second mounting plate 7, and the second mounting plate 7 is mounted on the battery tray 100, so that the unlocking device is conveniently assembled, and the unlocking device is modularized and more convenient to use.

[0149] The first mounting plate 13 and the second mounting plate 7 have at least one guide component, and the first mounting plate 13 moves in the axial direction of the unlocking assembly 3 through the guide component. The guide component has a guiding effect, and the first mounting plate 13 moves in the axial direction of the unlocking assembly 3 on the second mounting plate 7 with higher stability through the guide component, which greatly improves the accuracy of the unlocking device. In the embodiment, the first mounting plate 13 and the second mounting plate 7 are connected to each other through a guide rail and a sliding block.

[0150] The unlocking device further comprises a second detection unit 8, which is arranged at one end of the second mounting plate 7 close to the unlocking assembly 3, and is used to detect whether the first mounting plate 13 moves to the position of the unlocking matching part 200. In use, the driving unit 12 drives the first mounting plate 13 to move forward in the direction close to the unlocking matching part 200, and the second detection unit 8 detects whether the first mounting plate 13 moves to the position, which facilitates subsequent control of the rotation of the unlocking assembly 3 and improves the stability of the unlocking or locking process.

[0151] The unlocking device further comprises a third detection unit 9 arranged in the second mounting plate 7 away from one end of the unlocking matching part 200, and the third detection unit 9 is used for detecting whether the first mounting plate 13 is returned to the initial position. In use, the driving unit 12 drives the first mounting plate 13 to move in the direction away from the unlocking matching part 200, and the third detection unit 9 detects the limit position of the first mounting plate 13 moving backward and away, effectively avoiding the first mounting plate 13 from continuing to move backward, further improving the safety and stability of the unlocking device, and ensuring that the first mounting plate 13 is returned to the initial position, facilitating the subsequent operation and use.

[0152] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. An unlocking device for unlocking or locking a battery case in a battery bracket on an electric vehicle, characterized by, The unlocking device comprises a driving mechanism, an unlocking assembly and a transmission member, the driving mechanism drives the unlocking assembly to move through the transmission member, the unlocking assembly drives the locking mechanism on the battery bracket to move to realize unlocking or locking the battery box; The unlocking assembly is axially rotatable relative to the transmission member to adapt to the angle deviation of the unlocking assembly and the standard unlocking position on the battery bracket; The unlocking assembly comprises an unlocking rod, an end of the unlocking rod away from the transmission member has an insertion end, the insertion end is used to connect the unlocking matching member matched with the locking mechanism on the battery bracket; An outer surface of the insertion end has at least one abutting surface, the battery bracket is provided with an unlocking matching member connected with the locking mechanism, the insertion end is used to insert into the unlocking matching member, and the abutting surface is matched with an inner wall surface of the unlocking matching member to realize rotating the unlocking matching member; An end of the transmission member towards the unlocking assembly has a limiting portion, the unlocking assembly is provided with a matching portion connected in the limiting portion and axially rotatable relative to the limiting portion; Alternatively, an end of the transmission member towards the unlocking assembly has a matching portion, the unlocking assembly is provided with a limiting portion connected in the matching portion and axially movable relative to the matching portion; The limiting portion is an opening provided on an outer wall of the transmission member, and / or the matching portion is a sliding block provided on the unlocking assembly.

2. The unlocking device of claim 1, wherein, One end of the transmission member is connected to the driving mechanism, and the other end of the transmission member is rotatably connected to the unlocking assembly; And / or, the unlocking assembly is axially movable on the transmission member; And / or, the unlocking assembly itself is radially displaceable to realize that the unlocking assembly is radially movable relative to the driving mechanism; And / or, an end of the insertion end away from the transmission member has a guide sliding surface connected to the abutting surface and used to guide the unlocking rod to insert into the unlocking matching member; And / or, the unlocking device further comprises a first detection unit used to detect whether the unlocking assembly moves in a direction close to the driving mechanism; And / or, the driving mechanism comprises a rotating unit connected to the transmission member through a connecting shaft sleeve and used to drive the unlocking assembly to rotate along the axis of the unlocking assembly.

3. The unlocking device of claim 2, wherein, The transmission member has a guide hole recessed inward along the axial direction of the transmission member from the end of the transmission member towards the unlocking assembly, the unlocking assembly is inserted into the guide hole and is movable in the guide hole; And / or, the unlocking assembly comprises a second elastic member radially twistable, two ends of the second elastic member are respectively connected to the transmission member and the unlocking rod, and the second elastic member is adapted to the radial displacement of the unlocking rod; And / or, the unlocking assembly is further provided with a detection portion, and the first detection unit is used to detect the position of the detection portion. And / or, the driving mechanism further comprises a detection module electrically connected to the rotating unit and used for detecting a rotating torque of the rotating unit; And / or, the unlocking device further comprises a mounting seat, and the rotating unit passes through the mounting seat.

4. The unlocking device of claim 3, wherein, The unlocking device further comprises a first elastic member located in the guide hole, and two ends of the first elastic member abut against the transmission member and the unlocking assembly, respectively; And / or, one end of the unlocking rod towards the second elastic member has a connecting groove extending along an axial direction of the unlocking rod, and the unlocking rod is connected to the second elastic member through the connecting groove.

5. The unlocking device of claim 3, wherein, One end of the transmission member towards the unlocking assembly is clamped and connected with the unlocking assembly; And / or, the unlocking assembly further comprises a connecting sleeve, one end of the connecting sleeve is connected with the second elastic member, and the other end of the connecting sleeve is connected with the transmission member; And / or, the mounting seat has a limiting hole, the transmission member is inserted into the limiting hole and connected with the rotating unit; And / or, the driving mechanism further comprises a driving unit and a first mounting plate, the mounting seat is connected to the first mounting plate, and the driving unit is connected to the first mounting plate and used for driving the first mounting plate to move along an axial direction of the unlocking assembly.

6. The unlocking device of claim 5, wherein, An end of the connecting sleeve towards the transmission member is rotatably connected with the transmission member; And / or, the connecting sleeve is clamped and connected with the transmission member; And / or, the limiting hole has a bearing, and the bearing is sleeved on the transmission member; And / or, the unlocking device further comprises a second mounting plate, the driving unit is arranged on the second mounting plate, and the driving unit drives the first mounting plate to be slidable relative to the second mounting plate.

7. The unlocking device of claim 6, wherein, At least one guide component is arranged between the first mounting plate and the second mounting plate, and the first mounting plate moves along the axial direction of the unlocking assembly through the guide component; And / or, the unlocking device further comprises a second detection unit, the second detection unit is arranged at one end of the second mounting plate close to the unlocking assembly, and the second detection unit is used for detecting whether the first mounting plate moves to a position in the direction of the locking mechanism; And / or, the unlocking device further comprises a third detection unit, the third detection unit is arranged at one end of the second mounting plate away from the locking mechanism, and the third detection unit is used for detecting whether the first mounting plate returns to an initial position.

8. The unlocking device of claim 7, wherein, A length of the opening along an axial direction of the transmission member is greater than an extension length of the sliding block along the axial direction of the transmission member; And / or, a length of the opening along a radial direction of the transmission member is greater than an extension length of the sliding block along the radial direction of the transmission member.

9. A battery replacing device, characterized by, The battery changing device comprises the unlocking device.

10. The battery replacement device according to claim 9, wherein The battery changing device further comprises a battery tray, and the unlocking device is connected to the battery tray. The battery changing device comprises the unlocking device. The battery changing device further comprises a battery tray, and the unlocking device is connected to the battery tray.

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