CN212685310U

CN212685310U - Unlocking device and battery replacing equipment comprising same

Info

Publication number: CN212685310U
Application number: CN202021310257.4U
Authority: CN
Inventors: 张建平; 吉毅; 文超; 周英富
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-03-12
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses an unlocking device and battery replacement equipment comprising the same, wherein the unlocking device is used for unlocking or locking a battery box in a battery bracket on an electric automobile, the unlocking device 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 unlock or lock the battery box; but the unblock subassembly relative the driving medium axis rotates to self-adaptation the angle deviation of unblock subassembly with the standard unblock position on the battery tray. The battery replacement equipment comprises the unlocking device. The unlocking assembly can be ensured to be accurately aligned and connected even if circumferential position deviation exists; meanwhile, the unlocking or locking precision is very high, and the battery replacement efficiency is improved; effectively avoided taking place the maloperation, improved the safety and stability who trades the electrical equipment greatly, improved the life of battery box.

Description

Unlocking device and battery replacing equipment comprising same

Technical Field

The utility model relates to an unlocking device and contain its trade electrical equipment.

Background

Due to the shortage of petroleum resources and the increasing awareness of environmental protection, electric vehicles are increasingly widely used and have become a trend. In order to be matched with the electric vehicle, a battery replacing station is generated, and the battery box of the electric vehicle is replaced quickly through a battery replacing robot in the battery replacing station.

In the prior art, an unlocking device used for detaching and separating a battery box on an electric vehicle from the electric vehicle in a battery replacing robot adopts a structure integrating a sucker and an unlocking mechanism, namely, the unlocking device is directly arranged in the sucker, one side of a battery box shell opposite to the unlocking device is provided with a corresponding unlocking piece, when the battery box is unlocked from the electric vehicle, after the sucker is connected with the battery box in an adsorption manner, the unlocking mechanism acts on the unlocking piece on the battery box shell body to drive the unlocking piece to move so as to complete the detaching action of the battery box, the unlocking piece is required to be directly arranged on the shell body of the battery box in the unlocking manner, the strength and the sealing property of the shell body are influenced, the shell body is easy to deform when the unlocking piece is driven to move, the service life of the battery box is influenced, a point-to-point contact manner is formed between the unlocking device and the unlocking piece, and poor alignment precision is, The unlocking is failed, and the battery replacement efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that need directly locate the shell body of battery box with the deblocking piece in order to overcome current unblock mode, influence the intensity and the leakproofness of shell body, easily lead to the shell body to warp, influence the life of battery box, and be point-to-point contact mode between unlocking device and the deblocking piece, in the in-service use, easily cause to aim at the precision poor, the unblock is failed, trade the defect that the electrical efficiency is low, provide an unlocking device and contain its trade electrical equipment.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

an unlocking device is used for unlocking or locking a battery box in a battery bracket on an electric automobile and comprises a driving mechanism, an unlocking assembly and a transmission piece, wherein the driving mechanism drives 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;

but the unblock subassembly relative the driving medium axis rotates to self-adaptation the angle deviation of unblock subassembly with the standard unblock position on the battery tray.

In this scheme, adopt above-mentioned structural style, drive locking mechanism motion on the battery tray with unblock or locking battery box through the unblock subassembly, avoid the unblock subassembly direct action in the battery box shell body, can not cause the influence to the shell intensity of battery box, improved the life of battery box. Meanwhile, the unlocking assembly can be rotationally adjusted in the circumferential direction when being connected, namely when the position deviation of the unlocking assembly and the unlocking matching piece is within a preset error range, the unlocking assembly can be axially rotated to be connected and matched with the unlocking matching piece, the position of the unlocking assembly does not need to be adjusted again through external force, and the unlocking assembly can be connected and matched with the unlocking matching piece even if the circumferential position deviation exists. The driving mechanism drives the transmission piece and the unlocking component to move so as to drive the locking mechanism to move, so that the battery box is unlocked or locked, the unlocking or locking precision is very high, and the battery replacement efficiency is improved; the misoperation is effectively avoided, and the safety and stability of the battery replacement equipment are greatly improved.

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;

and/or the unlocking assembly can move on the transmission piece along the axial direction of the unlocking assembly.

In this scheme, adopt above-mentioned structural style for the unblock subassembly can be along its circumference direction rotation regulation on the driving medium when unblock subassembly and unblock matching piece interconnect, and the rotation through unblock subassembly self is in order to adapt to the angular deviation of unblock subassembly and unblock matching piece, makes the unblock subassembly insert to unblock matching piece in, guarantees that unlocking device is higher at the in-process stability of unblock or locking.

In addition, but the unlocking component is axial rotation and axial displacement relative to the driving medium, improves the flexibility that the unlocking component removed to realize with the connection matching of unblock matching piece.

Preferably, the transmission member has a guide hole, the guide hole is recessed inward from an end of the transmission member toward the unlocking component along an axial direction of the transmission member, and the unlocking component is inserted into the guide hole and can move in the guide hole.

In this scheme, adopt above-mentioned structural style, the guiding hole has the guide effect for the unblock subassembly removes along the axial direction of driving medium in the guiding hole, effectively avoids the unblock subassembly to produce skew dislocation phenomenon at the in-process that removes, has improved the safety and stability who trades electrical equipment greatly.

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

In this scheme, adopt above-mentioned structural style, exert the effort and have certain displacement volume to the unblock subassembly through first elastic component for the unblock subassembly is when taking place the error touching, can not cause the unblock subassembly along the displacement volume that is close to actuating mechanism too big because of the effort of first elastic component, effectively avoids the unlocking device to take place the maloperation, and effectively avoids colliding firmly between unlocking device and the driving medium, improves the safety and stability of unlocking device greatly. Simultaneously, set up first elastic component in the guiding hole, stability is higher.

Preferably, one end of the transmission piece facing the unlocking assembly is connected with the unlocking assembly in a clamping mode.

In this scheme, adopt above-mentioned structural style, avoided driving medium and unblock subassembly to take place to break away from the phenomenon, safety and stability is high.

Preferably, the end part of the transmission part facing the unlocking component is provided with a limiting part, the unlocking component is provided with a matching part, and the matching part is connected in the limiting part and can rotate along the axis of the unlocking component relative to the limiting part;

or, the driving medium orientation the tip of unblock subassembly has matching portion, be equipped with spacing portion on the unblock subassembly, spacing portion connect in the matching portion and relative matching portion can follow the axis of unblock subassembly removes.

In this scheme, adopt above-mentioned structural style, spacing portion has the restriction for matching portion rotates along the axis of unblock subassembly in spacing portion, thereby can the rotation regulation unblock subassembly, makes the unblock subassembly insert to the unblock matching in-process stability of unlocking device or locking higher.

Preferably, the limiting part is an opening arranged on the outer wall of the transmission part, and the opening is communicated with the guide hole;

and/or the matching part is a sliding block arranged on the unlocking component.

In this scheme, realize the removal of unblock subassembly in the driving medium spacing through setting up opening and the slider that mutually supports.

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;

and/or the length of the opening along the radial direction of the transmission piece is larger than the extension length of the sliding block along the radial direction of the transmission piece.

In this scheme, adopt above-mentioned structural style, realize that the slider can follow the axial direction removal of driving medium in the opening, and effectively avoid unlocking device to take place when the maloperation hard collision between slider and the driving medium, improve unlocking device's safety and stability greatly.

In addition, the opening reserves the rotation space of unblock subassembly self-adaptation to when unblock subassembly and unblock matching piece have little angular deviation, accessible unblock subassembly and the interact between the matching piece of unblock, thereby unblock subassembly self takes place to rotate and adjusts the angular deviation between its and the unblock matching piece, carries out radial position alignment, realizes the connection matching between the matching piece of unblock.

Preferably, the unlocking assembly is itself radially displaceable to enable radial movement of the unlocking assembly relative to the drive mechanism.

In this scheme, adopt above-mentioned structural style, can be at radial direction displacement through unblock subassembly self for the unblock subassembly can match and insert to the unblock matching piece in, realizes that unlocking device is higher at the in-process stability of unblock or locking.

Preferably, the unlocking assembly comprises a second elastic member and an unlocking rod, wherein the second elastic member can be radially twisted, 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.

In this scheme, adopt above-mentioned structural style, the second elastic component can radially twist to realize that the unblock pole can be in radial movement for the driving medium. Simultaneously, guarantee that unlocking device connects in the axial and revolve round its axis, stability is higher, and simple structure, erection joint is convenient.

Preferably, an insertion end is arranged at the end of the unlocking rod, which faces away from the transmission member, and the insertion end is used for connecting and matching an unlocking matching member on the locking mechanism on the battery bracket.

In this scheme, adopt above-mentioned structural style, it is all very convenient to connect, the disconnection, and stability is high, simultaneously, simple structure.

Preferably, the outer surface of the insertion end is provided with at least one abutting surface, the battery bracket is provided with an unlocking matching piece, the unlocking matching piece is connected with the locking mechanism, the insertion end is used for being inserted into the unlocking matching piece, and the abutting surface is matched with the inner wall surface of the unlocking matching piece so as to drive the unlocking matching piece to rotate.

In this scheme, adopt above-mentioned structural style, exert the effort through leaning on the internal face that faces the unblock matching piece and drive the unblock matching piece rotatory, rotational stability is high.

Preferably, one end of the insertion end, which faces away from the transmission part, is provided with a guide sliding surface, and the guide sliding surface is connected to the abutting surface and used for guiding the unlocking rod to be inserted into the unlocking matching piece.

In this scheme, adopt above-mentioned structural style, lead the smooth face and have lead smooth effect for even if insert the end have small positional deviation also can guarantee to lean on the face to stably get into in the unblock matching spare.

Preferably, the unlocking assembly further comprises a connecting sleeve, one end of the connecting sleeve is connected with the second elastic part, and the other end of the connecting sleeve is connected with the transmission part.

In this scheme, adopt above-mentioned structural style, establish ties driving medium and second elastic component each other in proper order through the adapter sleeve, guarantee that unlocking device connects in the axial and radially twists reverse around its axis, stability is higher, and erection joint is convenient.

Preferably, the end of the connecting sleeve facing the transmission member is rotatably connected with the transmission member;

and/or the connecting sleeve is connected with the transmission piece in a clamping manner.

In this scheme, adopt above-mentioned structural style, it is high to realize adapter sleeve and driving medium connection stability.

Preferably, one end of the unlocking lever facing the second elastic member has a connecting groove extending in an axial direction of the unlocking lever, and the unlocking lever is connected to the second elastic member through the connecting groove.

In this scheme, adopt above-mentioned structural style, realize being connected of unblock pole and second elastic component through connecting grooves, the erection joint is convenient. Simultaneously, guarantee that the delocking subassembly is rotatory along its axis, realize that unlocking device is higher at the in-process stability of unblock or locking.

Preferably, the unlocking device further comprises a first detection unit, and the first detection unit is used for detecting whether the unlocking assembly moves in the direction close to the driving mechanism.

In the scheme, by adopting the structural form, whether the unlocking assembly is located at the unlocking position in the unlocking matching piece can be detected through the first detection unit, so that the safety and stability of the battery replacement equipment in the battery replacement process are greatly improved; meanwhile, the unlocking process is accurately controlled, the whole process is automatically and accurately controlled, manual adjustment is not needed, and the unlocking efficiency is improved.

Preferably, the unlocking assembly is further provided with a detection part, and the first detection unit is used for detecting the position of the detection part.

In this scheme, adopt above-mentioned structural style, detect the accuracy, avoid taking place the maloperation, improved the safety and stability who trades electrical equipment greatly. Meanwhile, the structure is simple, the processing and the manufacturing are convenient, and the cost is low.

Preferably, the driving mechanism comprises a rotating unit which is connected to the transmission member through a coupling sleeve and is used for driving the unlocking assembly to rotate along the axis of the unlocking assembly.

In this scheme, adopt above-mentioned structural style, realize being connected through the axle sleeve between rotary unit and the driving medium, the matching assembly of being convenient for is connected, and has guaranteed that the driving medium is rotatory along its axis, realizes that unlocking device is higher at the in-process stability of unblock or locking.

Preferably, the driving mechanism further comprises a detection module electrically connected to the rotating unit and configured to detect a rotation torque of the rotating unit.

In the scheme, the safety and stability of the battery replacing equipment in the battery replacing process are further improved by adopting the structural form.

Preferably, the unlocking device further comprises a mounting seat, and the rotating unit is arranged on the mounting seat in a penetrating mode.

In this scheme, adopt above-mentioned structural style, the moving as a whole unblock subassembly of being convenient for, the installation sets up conveniently, and connection stability is high.

Preferably, the mounting seat has a limiting hole therein, and the transmission member is inserted into the limiting hole and connected to the rotating unit.

In this scheme, adopt above-mentioned structural style, spacing hole will play the limited effect, has effectively avoided the driving medium to produce skew dislocation phenomenon at rotatory in-process, has improved the safety and stability who trades electrical equipment greatly.

Preferably, the limiting hole is internally provided with a bearing, and the bearing is sleeved on the transmission piece.

In this scheme, adopt above-mentioned structural style, guaranteed through the bearing that the rotation of driving medium is more stable.

Preferably, the driving mechanism further comprises a driving unit and a first mounting plate, the mounting base is connected to the first mounting plate, and the driving unit is connected to the first mounting plate and is used for driving the first mounting plate to move along the axial direction of the unlocking assembly.

In this scheme, adopt above-mentioned structural style, through the first mounting panel of drive unit drive, further guarantee the accurate cooperation of delocking subassembly and unblock matching piece, improved the stability of trading electrical equipment greatly.

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 slide relative to the second mounting plate.

In this scheme, adopt above-mentioned structural style, unlocking device assembly sets up conveniently, and realizes the unlocking device modularization, and unlocking device uses more conveniently.

Preferably, the first mounting plate and the second mounting plate have at least one guide member therebetween, and the first mounting plate is moved in the axial direction of the unlocking assembly by the guide member.

In this scheme, adopt above-mentioned structural style, the guide part has the guide effect, makes first mounting panel higher along the axial displacement stability of unblock subassembly on the second mounting panel through the guide part, improves the precision of unblock device greatly.

Preferably, the unlocking device further comprises a second detection unit, the second detection unit is arranged at one end, close to the unlocking assembly, of the second mounting plate, and the second detection unit is used for detecting whether the first mounting plate moves in place in the direction of the locking mechanism.

In this scheme, adopt above-mentioned structural style, whether second detecting element detects first mounting panel horizontal migration targets in place, and the follow-up subassembly pivoted control that unlocks of being convenient for has improved the stability of unblock or locking process.

Preferably, the unlocking device further comprises a third detection unit, the third detection unit is arranged at one end, far away from the locking mechanism, of the second mounting plate, and the third detection unit is used for detecting whether the first mounting plate returns to the initial position or not.

In the scheme, by adopting the structural form, the limit position of the first mounting plate which is far away backwards is detected through the third detection unit, so that the first mounting plate is effectively prevented from continuously moving backwards, and the safety and stability of the unlocking device are further improved; and the first mounting plate is ensured to return to the initial position, so that the subsequent continuous operation is facilitated.

A battery replacement device comprises the unlocking device.

In the scheme, the unlocking assembly can be accurately aligned and connected even if circumferential position deviation exists, so that the battery box can be unlocked or locked, the unlocking or locking precision is very high, and the battery replacement efficiency is improved; the misoperation is effectively avoided, and the safety and stability of the battery replacement equipment are greatly improved.

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

In this scheme, adopt above-mentioned structural style, the top of battery tray is used for placing the battery box, and unlocking device installs and sets up on the bottom surface of battery tray to the realization is carried out unblock or locking to the battery box in the battery bracket on the electric automobile.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses an unlocking device and contain its trade electrical equipment, but through the rotation of the relative driving medium axis of unblock subassembly to the angular deviation of standard unblock position on self-adaptation unblock subassembly and the battery bracket. The unlocking assembly can be rotationally adjusted along the circumferential direction of the unlocking assembly when being connected, and the unlocking assembly can be accurately aligned and connected even if circumferential position deviation exists. Meanwhile, the driving mechanism drives the transmission piece and the unlocking piece to move so as to drive the locking mechanism to move, so that the battery box is unlocked or locked, the unlocking or locking precision is very high, and the battery replacement efficiency is improved; the misoperation is effectively avoided, and the safety and stability of the battery replacement equipment are greatly improved. And the unlocking assembly drives the locking mechanism on the battery bracket to move so as to unlock or lock the battery box, so that the unlocking assembly is prevented from directly acting 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 prolonged.

Drawings

Fig. 1 is a schematic view of a partial structure of a battery swapping device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an unlocking device according to an embodiment of the present invention.

Fig. 3 is an internal schematic structural diagram of the unlocking device according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the unlocking matching member according to an embodiment of the present invention.

Fig. 5 is an exploded schematic view of an angle deviation between the unlocking device and the unlocking matching member according to the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an unlocking device according to an embodiment of the present invention inserted into an unlocking matching member.

Fig. 7 is a schematic structural diagram of the axis deviation existing between the unlocking device and the unlocking matching member of the embodiment of the present invention.

Description of reference numerals:

drive mechanism 1

Rotating unit 11

Coupling sleeve 111

Drive unit 12

First mounting plate 13

Driving part 2

Guide hole 21

Opening 22

Unlocking assembly 3

Slider 31

Second elastic member 32

Unlocking lever 33

Abutting surface 331

Sliding guide surface 332

Connection groove 333

Connecting sleeve 34

Detecting part 341

First elastic member 4

First detecting unit 5

Mounting seat 6

Limiting hole 61

Bearing 62

Second mounting plate 7

Second detecting unit 8

Third detecting unit 9

Battery tray 100

Unlocking member 200

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the utility model discloses a trade electric equipment and be used for carrying out the side to electric automobile and trade the electricity, the battery box passes through the battery bracket to be installed in the installation space of electric automobile bottom both sides, trades electric equipment and unlocks through the old battery box to on the battery bracket to take out old battery box from the battery bracket, perhaps adorn the new battery box in the battery bracket, and lock the new battery box of packing into. In fig. 3, only the lower part structure of the battery replacement device is shown, and the upper part structure is omitted.

The battery replacement equipment comprises an unlocking device and a battery tray 100, wherein the unlocking device is connected to the battery tray 100. The unlocking device is arranged at the bottom of the battery tray 100, and in the battery replacing operation process of the battery replacing device, the battery tray 100 moves in a telescopic mode along a first direction to take and place the battery box, wherein the first direction is the width direction of the electric automobile. The top of battery tray 100 is used for placing the battery box, and unlocking device installation sets up on battery tray 100's bottom surface, and unlocking device is used for carrying out unblock or locking to the battery box in the battery bracket on the electric automobile.

The unlocking device comprises a driving mechanism 1, an unlocking component 3 and a transmission piece 2, wherein the driving mechanism 1 drives the unlocking component 3 to move through the transmission piece 2, so that the unlocking component 3 drives a locking mechanism on the battery bracket to move to unlock or lock 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 from a standard unlocking position on the battery carrier. In the present embodiment, the battery box on the battery bracket is locked, unlocked and driven in a rotating manner, and in other embodiments, the battery box on the battery bracket can be locked, unlocked and driven in other movement manners, such as axial expansion and contraction, radial displacement, and the like.

The driving mechanism 1 is installed and connected on the battery tray 100, the driving mechanism 1 drives the transmission piece 2 and the unlocking piece 3 to rotate, and the unlocking piece 3 and the unlocking matching piece 200 of the locking mechanism are matched and connected with each other and rotate together, so that the battery box is unlocked or locked. Drive the locking mechanism motion on the battery tray with unblock or locking battery box through unblock subassembly 3, avoid the unlocking subassembly 3 direct action in the battery box shell body, can not cause the influence to the shell intensity of battery box, improved the life of battery box. Meanwhile, the unlocking assembly 3 can rotate axially relative to the transmission part 2 to adapt to the angle deviation between the unlocking assembly 3 and the standard unlocking position on the battery bracket, so that the unlocking assembly 3 can be rotationally adjusted along the circumferential direction when being connected, namely when the position deviation between the unlocking assembly 3 and the unlocking matching piece 200 is within a preset error range, the unlocking assembly 3 rotates axially to realize the connection matching with the unlocking matching piece 200, the position of the unlocking assembly 3 does not need to be adjusted again through external force, and the connection matching between the unlocking assembly 3 and the unlocking matching piece 200 can be ensured even if the circumferential position deviation exists. Then, the driving mechanism 1 drives the transmission piece 2 and the unlocking component 3 to move so as to drive the locking mechanism to move, so that the battery box is unlocked or locked, the unlocking or locking precision is very high, and the battery replacement efficiency is improved; the misoperation is effectively avoided, and the safety and stability of the battery replacement equipment are greatly improved.

Wherein, the battery box can be provided with a locking groove, the locking mechanism comprises a rotary plug-in which is arranged on the battery bracket and is connected with the unlocking matching piece 200. The motion of unblock subassembly 3 will drive the motion of unblock matching 200, and the motion of unblock matching 200 will drive rotatory plug-in components and rotate, according to the difference of direction of rotation for rotatory plug-in components can insert in the locked groove on the battery box or retract outside the locked groove, thereby realize the locking or the unblock to the battery box. The specific structure of the locking mechanism is not limited in this embodiment.

As shown in fig. 2, 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 part 2 and the unlocking assembly 3 can be rotatably connected, so that the unlocking assembly 3 can rotate relative to the transmission part 2 when being connected with the unlocking matching piece 200, the unlocking assembly 3 can adapt to the angle deviation between the unlocking assembly 3 and the unlocking matching piece 200 through the rotation of the unlocking assembly 3, the unlocking assembly 3 is inserted into the unlocking matching piece 200, and the unlocking device is higher in stability in the unlocking or locking process.

The unlocking assembly 3 can be moved on the transmission element 2 in the axial direction of the unlocking assembly 3. The unlocking component 3 can axially rotate and axially move relative to the transmission piece 2, so that the flexibility of movement of the unlocking component 3 is improved, and connection and matching with the unlocking matching piece 200 are realized.

As shown in fig. 3, the transmission member 2 has a guide hole 21, the guide hole 21 is recessed inward in the axial direction of the transmission member 2 from the end of the transmission member 2 toward the unlocking member 3, and the unlocking member 3 is inserted into the guide hole 21 and is movable within the guide hole 21. The guiding hole 21 has a guiding effect, so that the unlocking assembly 3 moves in the guiding hole 21 along the axial direction of the transmission part 2, the phenomenon of offset and dislocation of the unlocking assembly 3 in the moving process is effectively avoided, and the safety and stability of the battery replacement equipment are greatly improved.

The unlocking device further comprises a first elastic piece 4, the first elastic piece 4 is located in the guide hole 21, and two ends of the first elastic piece 4 are respectively abutted against the transmission piece 2 and the unlocking component 3. When the unlocking assembly 3 enters a preset position in the unlocking matching piece 200 on the battery bracket, the unlocking assembly 3 is subjected to the acting force from the unlocking matching piece 200 and moves in the guide hole 21 in the direction close to the driving mechanism 1, and the first elastic piece 4 is compressed during the movement of the unlocking assembly 3 to the driving mechanism; when the unlocking assembly 3 is separated from the unlocking matching member 200, the first elastic member 4 will bring the unlocking assembly 3 back to the initial position state. Exert the effort and have certain displacement volume through first elastic component 4 to unblock subassembly 3 for unblock subassembly 3 when taking place the error touching, can not cause unblock subassembly 3 along the displacement volume that is close to actuating mechanism 1 too big because of the effort of first elastic component 4, effectively avoid unlocking device to take place the maloperation, and effectively avoid colliding firmly between unlocking device 3 and the driving medium 2, improve unlocking device's safety and stability greatly. Meanwhile, the first elastic piece 4 is arranged in the guide hole 21, and stability is higher. Wherein the first elastic member 4 may be a spring.

One end of the transmission piece 2 facing the unlocking component 3 is connected with the unlocking component 3 in a clamping way. Adopt the block connected mode between driving medium 2 and the unblock subassembly 3, avoided driving medium 2 and unblock subassembly 3 to take place to break away from the phenomenon, safety and stability is high.

In this embodiment, the end of the transmission part 2 facing the unlocking component 3 has a limiting portion, the unlocking component 3 is provided with a matching portion, and the matching portion is connected in the limiting portion and can rotate along the axis of the unlocking component 3 relative to the limiting portion. The driving medium 2 is connected with the matching part on the unlocking component 3 through the limiting part in a clamping manner, the limiting part has a limiting effect, the matching part rotates along the axis of the unlocking component 3 in the limiting part, the unlocking component 3 can be rotationally adjusted, the unlocking component 3 is inserted into the unlocking matching part 200, and the unlocking device is higher in stability in the unlocking or locking process.

The limiting part is an opening 22 arranged on the outer wall of the transmission piece 2, and the opening 22 is communicated with the guide hole 21. The end part of the transmission part 2 is provided with a guide hole 21, and the outer wall of the transmission part 2 is provided with an opening 22, so that the movement of the unlocking component 3 is limited conveniently.

The matching part is a slider 31 arranged on the unlocking assembly 3. The slider 31 will rotate along the axis of unblock subassembly 3 in opening 22, connect at opening 22 block through slider 31, the axial turned angle and the displacement distance of restriction unblock subassembly 3, can enough self-adaptation adjustment unblock subassembly 3 and unblock matching piece 200 between the angular deviation, can drive unblock subassembly 3 simultaneously and rotate and predetermine the locking or the unblock of angle in order to realize the battery box, avoid unblock subassembly 3 and driving medium 2 to break away from mutually, the efficiency and the stability of unblock or locking process have been improved.

As shown in fig. 5 and 6, the length of the opening 22 in the axial direction of the transmission member 2 is greater than the extension of the slider 31 in the axial direction of the transmission member 2. Thereby realize slider 31 can remove along the axial direction of driving medium 2 in opening 22, and effectively avoid when taking place the maloperation unlocking device hard collision between slider 31 and the driving medium 2, improve unlocking device's safety and stability greatly.

The length of the opening 22 in the radial direction of the transmission member 2 is greater than the extension of the slider 31 in the radial direction of the transmission member 2. Through the arrangement, the opening 22 reserves a self-adaptive rotation space of the unlocking assembly 3, so that when the unlocking assembly 3 and the unlocking matching piece 200 have slight angular deviation, the unlocking assembly 3 can rotate to adjust the angular deviation between the unlocking assembly 3 and the unlocking matching piece 200 through the interaction between the unlocking assembly 3 and the unlocking matching piece 200, radial position alignment is carried out, and connection matching between the unlocking assembly 3 and the unlocking matching piece 200 is realized.

In fig. 5, before the unlocking member 3 is inserted into the unlocking match member 200, there is an angular deviation between the unlocking member 3 and the unlocking match member 200, and the slider 31 is located at a circumferentially intermediate position in the opening 22. In fig. 6, the unlocking assembly 3 is moved in a direction close to the unlocking matching member 200 and inserted into the unlocking matching member 200, the unlocking assembly 3 is axially rotatable relative to the transmission member 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.

Of course, in other embodiments, the end of the transmission member 2 facing the unlocking component 3 has a matching portion, and the unlocking component 3 is provided with a limiting portion, and the limiting portion is connected in the matching portion and can move along the axis of the unlocking component 3 relative to the matching portion. That is, an opening is arranged on the unlocking component 3, and a slide block is arranged on the transmission component 2. As long as the unlocking member 3 and the transmission member 2 can rotate in the circumferential direction and move in the axial direction, the specific structure may not be limited.

The unlocking assembly 3 and the transmission piece 2 need to be rotationally adjusted in the circumferential direction of the unlocking assembly 3, and the situation that the axis of the unlocking assembly 3 and the axis of the unlocking matching piece 200 are not aligned accurately exists between the unlocking assembly 3 and the unlocking matching piece 200, namely, a small position deviation exists and the axes are not on the same straight line. In order to achieve the purpose that the unlocking device can adapt to the condition of inaccurate alignment. As shown in fig. 7, the unlocking assembly 3 itself can be radially displaceable to enable radial movement of the unlocking assembly 3 relative to the drive mechanism 1. Under the condition that the driving mechanism 1 is fixed, the unlocking assembly 3 can displace in the radial direction, so that the unlocking assembly 3 can be inserted into the unlocking matching piece 200 in a matching mode, and the unlocking device is higher in stability in the unlocking or locking process.

The unlocking assembly 3 comprises a second elastic member 32 which can be radially twisted and an unlocking lever 33, both ends of the second elastic member 32 are respectively connected to the transmission member 2 and the unlocking lever 33, and the second elastic member 32 is adapted to the radial displacement of the unlocking lever 33. The second spring element 32 can be radially twistable, so that the unlocking lever 33 can be moved radially relative to the transmission element 2. Meanwhile, the transmission piece 2, the second elastic piece 32 and the unlocking rod 33 are sequentially connected in series, so that the unlocking device is ensured to be connected in the axial direction and rotate around the axis of the unlocking device, the stability is higher, the structure is simple, and the installation and the connection are convenient.

The end of the unlocking lever 33 facing away from the driver 2 has an insertion end for the connection of an unlocking partner 200 on the locking mechanism on the mating battery carrier. The battery tray 100 drives the unlocking device to synchronously extend in the extending process, the insertion end of the unlocking rod 33 is connected and matched with the unlocking matching piece 200 in an inserting mode, the unlocking rod 33 is driven to rotate to drive the unlocking matching piece 200 to rotate, and then unlocking or locking of the locking mechanism is achieved. After the operation is completed, the insertion end and the release fitting 200 are disconnected from each other by the retraction of the battery tray 100, thereby achieving the separation. The connection and disconnection are very convenient, the stability is high, and simultaneously, the structure is simple.

The outer surface of the insertion end is provided with at least one abutting surface 331, the battery bracket is provided with an unlocking matching piece 200, the unlocking matching piece 200 is connected with the locking mechanism, the insertion end is used for being inserted into the unlocking matching piece 200, and the abutting surface 331 is matched with the inner wall surface of the unlocking matching piece 200 so as to drive the unlocking matching piece 200 to rotate. When the unlocking lever 33 rotates, the abutting surface 331 is matched with the inner wall surface of the unlocking matching piece 200, so that the abutting surface 331 applies acting force to the unlocking matching piece 200 and drives the unlocking matching piece 200 to rotate, and the locking mechanism of the locking mechanism is driven to rotate to unlock or lock the battery box. The acting force is applied to the inner wall surface of the unlocking matching piece 200 through the abutting surface 331 to drive the unlocking matching piece 200 to rotate, and the rotation stability is high. In this embodiment, the number of the abutting surfaces 331 is plural, the shape defined by the abutting surfaces 331 is a non-circular shape, and the unlocking matching member 200 can be driven to rotate, and the unlocking rod 33 can be aligned and connected accurately by rotating by a small angle even if the circumferential position of the unlocking rod 33 is deviated due to the square structure defined by the abutting surfaces 331. Of course, in other embodiments, the number of abutment surfaces 331 may not be limited.

The end of the insertion end facing away from the driver 2 has a guide surface 332, and the guide surface 332 is connected to the abutment surface 331 and is used to guide the unlocking lever 33 into the unlocking matching member 200. The sliding guide surface 332 has a sliding guide function, and the sliding guide surface 332 can adapt to small position deviation between the unlocking rod 33 and the unlocking matching piece 200; when the insertion end is inserted into the unlocking matching piece 200, the sliding guide surface 332 plays a role in sliding guide and is inserted into the unlocking matching piece 200, so that even if the insertion end has slight position deviation, the abutting surface 331 can be ensured to stably enter the unlocking matching piece 200. In this embodiment, one end of the slide guide surface 332 is connected to the abutting surface 331, and the other end extends obliquely relative to the abutting surface 331 toward the axial center of the lock release lever 33 and away from the abutting surface 331.

As shown in fig. 2, 3, 4, 5, 6 and 7, when there is an angular deviation between the unlocking lever 33 and the unlocking matching member 200 during the process of inserting the unlocking assembly 3 into the unlocking matching member 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 axially relative to the transmission member 2, thereby solving the problem of the angular deviation and achieving the angular alignment. When there is an axis deviation between the unlocking lever 33 and the unlocking matching member 200, the unlocking lever 33 contacts with each other between the unlocking matching members 200, the unlocking lever 33 will slide into the unlocking matching member 200 through the guide sliding surface 332, and since the second elastic member 32 can be twisted in the radial direction, the unlocking lever 33 can be ensured to stably enter the unlocking matching member 200 even if there is an axis deviation between the unlocking assembly 3 and the unlocking matching member 200. After the unlocking lever 33 bottoms out in the unlocking member 200, the driving mechanism 1 continues to drive the unlocking member 3 to move in the direction close to the unlocking member 200, so that the slider 31 moves in the direction close to the driving mechanism 1 in the opening 22.

The unlocking lever 33 has a coupling groove 333 extending in the axial direction of the unlocking lever 33 at an end thereof facing the second elastic member 32, and the unlocking lever 33 is coupled to the second elastic member 32 through the coupling groove 333. The second elastic member 32 is inserted into the connection groove 333 through the connection groove 333, so that the unlocking lever 33 and the second elastic member 32 can be connected, and the installation and the connection are convenient. Simultaneously, unblock subassembly 3 is along its axial setting, guarantees that unblock subassembly 3 is rotatory along its axis, realizes that unlocking means is higher at the in-process stability of unblock or locking.

The unlocking assembly 3 further comprises a connecting sleeve 34, one end of the connecting sleeve 34 is connected with the second elastic member 32, and the other end of the connecting sleeve 34 is connected with the transmission member 2. The transmission part 2 and the second elastic part 32 are sequentially connected in series through the connecting sleeve 34, so that the unlocking device is ensured to be connected in the axial direction and radially twisted around the axis of the unlocking device, the stability is higher, and the installation and the connection are convenient. The first elastic member 4 may be a flexible shaft, and the connecting sleeve 34 and the unlocking rod 33 may be made of metal.

The end of the connecting sleeve 34 facing the transmission element 2 is rotatably connected to the transmission element 2. In this embodiment, the end of the connecting sleeve 34 is inserted into the guiding hole 21, the sliding block 31 is connected to the outer wall of the connecting sleeve 34 and located in the opening 22, and the length of the opening 22 in the radial direction of the transmission member 2 is greater than the extension length of the sliding block 31 in the radial direction of the transmission member 2, so that the connecting sleeve 34 is rotatably connected to the transmission member 2. Meanwhile, the connecting sleeve 34 is connected with the opening 22 of the transmission piece 2 in a clamping manner through the sliding block 31, and the connection stability is high.

The unlocking device further comprises a first detection unit 5, and the first detection unit 5 is used for detecting whether the unlocking assembly 3 moves in the direction close to the driving mechanism 1. In the unlocking or locking process of the unlocking device, the insertion end of the unlocking assembly 3 needs to be accurately aligned and inserted into the unlocking matching piece 200, the unlocking assembly 3 can move in the direction close to the driving mechanism 1 due to the abutting action force of the unlocking matching piece 200, the first detection unit 5 detects that the unlocking assembly 3 moves into the detection area of the first detection unit 5, the insertion end is inserted into the unlocking matching piece 200, the next operation 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, the fact that the unlocking assembly 3 and the unlocking matching piece 200 are staggered and not inserted into the unlocking matching piece 200 is indicated, and at the moment, the unlocking assembly 3 can be controlled to stop moving in the direction close to the unlocking matching piece 200.

Whether the unlocking assembly 3 is located at the unlocking position in the unlocking matching piece 200 or not can be detected through the first detection unit 5, the safety stability of the battery replacing device in the battery replacing process is greatly improved, the accurate control of the unlocking process is realized, namely, the unlocking rod 33 is unlocked or locked after reaching the unlocking position, the full-automatic accurate control is realized, manual adjustment is not needed, the unlocking efficiency is improved, and meanwhile, the situation that the unlocking rod 33 continuously moves towards the direction close to the battery bracket to cause collision misoperation when the unlocking rod 33 is staggered with the unlocking matching piece 200 is avoided.

The unlocking assembly 3 is further provided with a detection portion 341, and the first detection unit 5 is used for detecting the position of the detection portion 341. When the unlocking assembly 3 is aligned and inserted into the unlocking matching member 200, the detection portion 341 will be driven to move in a direction close to the driving mechanism 1. In the present embodiment, the detection portion 341 is located on the outer surface of the connection sleeve 34 and protrudes outward, and the first detection unit 5 detects whether the unlocking member 3 moves in the direction approaching the driving mechanism 1 by detecting the distance from the connection sleeve 34. In the initial state, the detection portion 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 member 200, the detection portion 341 will move to the detection area of the first detection unit 5 in the direction approaching the driving mechanism, and the first detection unit 5 can detect the detection portion 341, which indicates that the unlocking lever 33 enters the unlocking matching member 200 and reaches the unlocking position; when the first detecting unit 5 does not detect that the detecting portion 341 moves to the detecting area, it indicates that the unlocking lever 33 is not aligned with the unlocking matching member 200, and the unlocking lever 33 can be timely controlled to stop moving continuously. The first detection unit 5 is used for detecting the position of the detection part 341, so that the detection is accurate, the misoperation is avoided, and the safety and stability of the battery replacement equipment are greatly improved. Wherein, the first detecting unit 5 may be a sensor. Preferably, the first detection unit 5 may be a proximity sensor.

The driving mechanism 1 comprises a rotating unit 11, and the rotating unit 11 is connected to the transmission member 2 through a coupling sleeve 111 and is used for driving the unlocking assembly 3 to rotate along the axis of the unlocking assembly 3. The rotating unit 11 is connected with the transmission piece 2 through the connecting shaft sleeve 111, so that the transmission piece 2 is convenient to match, assemble and connect, the transmission piece 2 is guaranteed to rotate along the axis of the transmission piece, and the unlocking device is higher in stability in the unlocking or locking process. Wherein the rotating unit 11 may be a nailing machine.

The drive mechanism 1 further comprises a detection module (not shown in the figures) electrically connected to the rotary unit 11 and adapted to detect the rotation torque of the rotary unit 11. When the rotating unit 11 rotates, the detection module detects whether the torque of the rotating unit 11 is within the standard torque range, and if the detected torque is within the standard torque range, the unlocking rod 33 drives the unlocking matching piece 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 is indicated that the locking mechanism is not unlocked or locked in place, and at this time, the battery box can not be taken in the next step or the battery box is disconnected, so that the battery replacement fault caused by the fact that the battery box is not safely unlocked or locked is avoided, and the safety and stability of the battery replacement device in the battery replacement process are further improved. Of course, the detection of whether the lock release lever 33 is inserted into the lock release fitting 200 may also be determined by detecting whether the rotation amount of the rotating unit 11 at the time of driving the lock release lever 33 to rotate falls within a preset rotation 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 a rotating torque of the locking mechanism for locking the battery box when the unlocking rod 33 is inserted into the unlocking matching piece 200 to rotate, and the unlocking standard torque range refers to a rotating torque of the locking mechanism for unlocking the battery box when the unlocking rod 33 is inserted into the unlocking matching piece 200 to rotate.

The unlocking device further comprises a mounting seat 6, and the rotating unit 11 is arranged on the mounting seat 6 in a penetrating mode. The rotating unit 11 is fixedly installed on the installation seat 6, so that the unlocking assembly 3 can be conveniently moved integrally, the installation and the setting are convenient, and the connection stability is high.

The mounting seat 6 is provided with a limiting hole 61, and the transmission piece 2 is inserted into the limiting hole 61 and connected with the rotating unit 11. Spacing hole 61 will play the limited action, has effectively avoided driving medium 2 to produce skew dislocation phenomenon at rotatory in-process, has improved the safety and stability who trades electrical equipment greatly. Preferably, the limiting hole 61 has a bearing 62 therein, and the bearing 62 is sleeved on the transmission member 2. A more stable rotation of the transmission element 2 is ensured by the bearing 62.

The driving mechanism 1 further comprises a driving unit 12 and a first mounting plate 13, the mounting base 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 for driving the first mounting plate 13 to move along the axial direction of the unlocking assembly 3. The driving unit 12 and the first mounting plate 13 can be installed on the battery tray 100 and can move along with the battery tray 100 to the direction close to the battery bracket, and the first mounting plate 13 is driven by the driving unit 12, so that the first mounting plate 13 moves along the axial direction of the unlocking assembly 3 relative to the battery tray 100, namely moves along the direction close to the unlocking matching piece 200 on the battery bracket, thereby further ensuring the accurate matching of the unlocking assembly 3 and the unlocking matching piece 200, and greatly improving the stability of the battery replacing device.

The unlocking device further comprises a second mounting plate 7, a driving unit 12 is arranged on the second mounting plate 7, and the driving unit 12 drives the first mounting plate 13 to slide relative to the second mounting plate 7. In this embodiment, the driving unit 12 and the first mounting plate 13 are not directly mounted on the battery tray 100, the driving unit 12 and the first mounting plate 13 are 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 convenient to assemble and set, modularization of the unlocking device is realized, and the unlocking device is more convenient to use.

Between the first mounting plate 13 and the second mounting plate 7 there is at least one guide member by which the first mounting plate 13 is moved in the axial direction of the unlocking assembly 3. The guide component has the guide effect, makes first mounting panel 13 higher along the axial displacement stability of unblock subassembly 3 on second mounting panel 7 through the guide component, improves the precision of unblock device greatly. In the present embodiment, the first mounting plate 13 and the second mounting plate 7 are connected to each other by a rail and a slider.

The unlocking device further comprises a second detection unit 8, the second detection unit 8 is arranged at one end, close to the unlocking assembly 3, of the second mounting plate 7, and the second detection unit 8 is used for detecting whether the first mounting plate 13 moves in place in the direction of the unlocking matching piece 200 or not. When the unlocking assembly is used, the driving unit 12 drives the first mounting plate 13 to move forwards along the direction close to the unlocking matching piece 200, and the second detection unit 8 detects whether the first mounting plate 13 horizontally moves in place, so that the subsequent control of the rotation of the unlocking assembly 3 is facilitated, and the stability of the unlocking or locking process is improved.

The unlocking device further comprises a third detection unit 9, the third detection unit 9 is arranged at one end, far away from the unlocking matching piece 200, of the second mounting plate 7, and the third detection unit 9 is used for detecting whether the first mounting plate 13 returns to the initial position or not. When the unlocking device is used, the driving unit 12 drives the first mounting plate 13 to move backwards along the direction far away from the unlocking matching piece 200, and the third detection unit 9 detects the limit position at which the first mounting plate 13 is far away backwards, so that the first mounting plate 13 is effectively prevented from continuously moving backwards, and the safety and stability of the unlocking device are further improved; and the first mounting plate 13 is ensured to return to the initial position, so that the subsequent continuous operation is facilitated.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. An unlocking device is used for unlocking or locking a battery box in a battery bracket on an electric automobile and is characterized by comprising a driving mechanism, an unlocking assembly and a transmission piece, wherein the driving mechanism drives 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;

2. The delatch device of claim 1 wherein one end of the transmission member is connected to the drive mechanism and the other end of the transmission member is rotatably connected to the delatch assembly;

3. The lock release device according to claim 2, wherein the transmission member has a guide hole that is recessed inward in an axial direction of the transmission member from an end of the transmission member toward the release member, and the release member is inserted into the guide hole and is movable in the guide hole.

4. The unlocking device of claim 3, further comprising a first elastic member, wherein the first elastic member is located in the guide hole, and both ends of the first elastic member respectively abut against the transmission member and the unlocking assembly.

5. The delatch device of claim 3 wherein an end of the transmission member facing the delatch assembly is snap fit to the delatch assembly.

6. The unlocking device according to claim 5, wherein the end of the transmission member facing the unlocking assembly is provided with a limit portion, the unlocking assembly is provided with a matching portion, and the matching portion is connected in the limit portion and can rotate along the axis of the unlocking assembly relative to the limit portion;

7. The unlocking device according to claim 6, wherein the stopper is an opening provided in an outer wall of the transmission member, the opening communicating with the guide hole;

8. The unlocking device according to claim 7, wherein the length of the opening in the axial direction of the transmission member is greater than the extension of the slider in the axial direction of the transmission member;

9. The delatch device of claim 1 wherein the delatch assembly is itself radially displaceable to enable radial movement of the delatch assembly relative to the drive mechanism.

10. The delatch device of claim 9 wherein the delatch assembly includes a radially twistable second resilient member and a delatch lever, the second resilient member having ends connected to the drive member and the delatch lever, respectively, and the second resilient member to accommodate radial displacement of the delatch lever.

11. The lock release device of claim 10, wherein the end of the lock release lever facing away from the driving member has an insertion end for connecting and mating with an unlocking mating member on the locking mechanism on the battery holder.

12. The unlocking device according to claim 11, wherein the outer surface of the insertion end has at least one abutting surface, the battery bracket is provided with an unlocking matching member, the unlocking matching member is connected with the locking mechanism, the insertion end is used for being inserted into the unlocking matching member, and the abutting surface is matched with the inner wall surface of the unlocking matching member so as to drive the unlocking matching member to rotate.

13. The delatch device of claim 12 wherein an end of the insertion end facing away from the driver has a guide surface connected to the abutment surface for guiding the insertion of the delatch lever into the delatch mating member.

14. The delatch device of claim 10, wherein the delatch 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.

15. The unlocking device according to claim 14, characterized in that the end of the connecting sleeve facing the transmission element is rotatably connected to the transmission element;

16. The lock unlocking device according to claim 10, wherein an end of the lock releasing lever facing the second elastic member has a coupling groove extending in an axial direction of the lock releasing lever, and the lock releasing lever is coupled to the second elastic member through the coupling groove.

17. The unlocking device according to claim 1, further comprising a first detection unit for detecting whether the unlocking member is moved in a direction close to the drive mechanism.

18. The unlocking device according to claim 17, wherein a detection portion is further provided on the unlocking assembly, and the first detection unit is configured to detect a position of the detection portion.

19. The delatch device of claim 1 wherein the drive mechanism includes a rotary unit coupled to the drive member by a coupling sleeve and configured to drive the delatch assembly to rotate along the axis of the delatch assembly.

20. The delatch device of claim 19 wherein the drive mechanism further includes a sensing module electrically connected to the rotary unit for sensing a rotational torque of the rotary unit.

21. The delatch device of claim 19 further comprising a mount, wherein the rotary unit is disposed through the mount.

22. The delatch device of claim 21 wherein the mounting block has a limit hole therein, the transmission member being inserted into the limit hole and connected to the rotary unit.

23. The delatch device of claim 22 wherein said limit opening has a bearing therein, said bearing being received on said drive member.

24. The delatch device of claim 21 wherein the drive mechanism further includes a drive unit and a first mounting plate, the mounting block being coupled to the first mounting plate, the drive unit being coupled to the first mounting plate and configured to drive the first mounting plate in axial movement along the delatch assembly.

25. The delatch device of claim 24 further comprising a second mounting plate, wherein the drive unit is disposed on the second mounting plate, wherein the drive unit drives the first mounting plate to slide relative to the second mounting plate.

26. The delatch device of claim 25 wherein the first mounting plate and the second mounting plate have at least one guide member therebetween, the first mounting plate being movable by the guide member in the axial direction of the delatch assembly.

27. The unlocking device of claim 25, further comprising a second detection unit disposed at an end of the second mounting plate adjacent to the unlocking assembly, the second detection unit being configured to detect whether the first mounting plate is moved in place in a direction toward the locking mechanism.

28. The unlocking device of claim 25, further comprising a third detecting unit disposed at an end of the second mounting plate remote from the locking mechanism, the third detecting unit being configured to detect whether the first mounting plate is returned to the initial position.

29. An electric swapping device, characterized in that it comprises an unlocking device according to any one of claims 1-28.

30. The battery swapping device of claim 29, further comprising a battery tray, wherein the unlocking device is connected to the battery tray.