CN213705228U - Unlocking block and lock mechanism comprising same - Google Patents

Abstract

The utility model discloses an unlocking block and contain its latch mechanism, the unlocking block sets up on the latch mechanism of electric automobile bottom, the unlocking block is used for carrying out the unblock to the battery package that is fixed in the electric automobile bottom through the latch mechanism locking, the unlocking block is used for driving under the drive of outside unlocking mechanism the latch mechanism switches from the locking state to the unlocking state, the unlocking block includes first spacing portion and second spacing portion, first spacing portion carries out the spacing of X to the unlocking mechanism; the second limiting part limits the unlocking mechanism in the Y direction, and the X direction is perpendicular to the Y direction. Above-mentioned unlocking piece and contain its latch mechanism through setting up first spacing portion, the spacing portion of second, when making release mechanism and unlocking piece contact, the relative movement between release mechanism and the unlocking piece is all restricted along X to and Y to, and the release mechanism can drive the unlocking piece and remove when removing to drive the removal of lock connecting rod, realize the unblock of latch mechanism.

Description

Unlocking block and lock mechanism comprising same

Technical Field

The utility model relates to an unblock piece and contain its latch mechanism.

Background

The quick-change electric automobile can meet the power supply requirement of the quick-change electric automobile in a battery replacement mode. Therefore, a lock mechanism is required to be arranged on the electric automobile, and the lock mechanism is matched with the lock shaft of the battery pack. The lock mechanism locks the battery pack after the battery pack is installed on the electric automobile; when the battery pack needs to be disassembled, the lock mechanism can be unlocked, and the battery pack is separated from the lock mechanism. The locking mechanism needs to be provided with an unlocking block matched with the unlocking mechanism, so that the unlocking mechanism can act on the unlocking block, and the locking mechanism is driven to move towards the unlocking direction.

In the prior art, for example, the lock mechanism is disclosed in chinese patent application with publication No. CN106427514A and application No. CN201611041220.4, an unlocking block 12 is further disposed on a side of the rod member 11 corresponding to the lock base 20, and the unlocking block 12 is used for jacking up the rod member 11 under the pushing of an unlocking device of the power conversion mobile platform, so that the lock link 10 drives the lock tongue 24 to switch between unlocking and locking states. The unlocking block 12 may be an arc-shaped protrusion formed outward from the rod 11, and the top of the unlocking block 12 is an inner arc groove 121 recessed toward the rod 11. The top end of the unlocking piece 12 is provided with an inner arc groove 121, so that an optimal unlocking point can be formed with the unlocking device, the position indicates that the lock connecting rod 10 is completely unlocked, and the stopping of the unlocking device is convenient. The structure that the unlocking block top in this scheme adopted the inner arc groove is in order to form an optimum unlocking point for the convenience, and does not form spacing in two mutually perpendicular directions between unlocking block and unlocking device, at the in-process of unlocking device back-out unlocking block, leads to the two dislocation easily, leads to the unblock process to become invalid.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose that will reach is to keep the stability that supports between unblock mechanism and the unblock piece at the unblock in-process and support, avoids taking place the dislocation between the two, provides an unblock piece and contains its latch mechanism.

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

the utility model provides an unlocking block, the unlocking block is arranged on a locking mechanism at the bottom of an electric automobile, the unlocking block is used for unlocking a battery pack which is locked and fixed at the bottom of the electric automobile through the locking mechanism, the unlocking block is used for driving the locking mechanism to be switched from a locking state to an unlocking state under the driving of an external unlocking mechanism, the unlocking block comprises a first limiting part and a second limiting part, and the first limiting part limits the unlocking mechanism in the X direction; the second limiting part limits the unlocking mechanism in the Y direction, and the X direction is perpendicular to the Y direction.

In the technical scheme, the first limiting part and the second limiting part are arranged, so that when the unlocking mechanism is in contact with the unlocking block, the unlocking mechanism and the unlocking block are limited in relative movement along the X direction and the Y direction, and the unlocking block can be driven to move when the unlocking mechanism moves, so that the lock connecting rod is driven to move, and the unlocking of the lock mechanism is realized.

Preferably, the unlocking block is provided with a recessed part which is matched with an unlocking head of the unlocking mechanism; first spacing portion includes preceding X to spacing portion and the spacing portion of back X, preceding X is used for restricting to separate the tapered end along X forward motion, the spacing portion of back X is used for restricting separate the tapered end along X backward motion, preceding X constitutes between spacing portion, the spacing portion of back X to the depressed part.

In the technical scheme, the unlocking head can be limited to move forwards or backwards along the X direction through the front X-direction limiting part and the rear X-direction limiting part, so that the relative movement between the unlocking head and the unlocking block along the X direction is limited.

Preferably, the front X-direction limiting portion and the rear X-direction limiting portion are first guide inclined planes, and the two first guide inclined planes are arranged oppositely.

In this technical scheme, set up preceding X to spacing portion, back X to spacing portion to the first direction inclined plane of relative setting, make the unblock head can be guided to the depressed part in by first direction inclined plane.

Preferably, the recessed portion includes a bottom surface disposed between the two first guide slopes, and a shape of the bottom surface matches a shape of an end surface of the unlocking head.

In the technical scheme, the concave part is arranged as a bottom surface matched with the shape of the end surface of the unlocking head; when the unlocking head extends into the concave part, the end surface of the unlocking head can be matched with the bottom surface, so that the unlocking head can smoothly drive the unlocking block to move.

Preferably, the first guide slope is a plane or an arc surface.

In this technical scheme, the first direction inclined plane of plane or arcwall face can play the guide effect of preferred.

Preferably, the unlocking block is provided with a recessed part which is matched with an unlocking head of the unlocking mechanism; the second limiting part comprises a front Y-direction limiting part and a rear Y-direction limiting part, the front Y-direction limiting part is used for limiting the unlocking head to move forwards along the Y direction, the rear Y-direction limiting part is used for limiting the unlocking head to move backwards along the Y direction, and the front Y-direction limiting part and the rear Y-direction limiting part form the depressed part.

In the technical scheme, the unlocking head can be limited to move forwards or backwards along the Y direction through the front Y-direction limiting part and the rear Y-direction limiting part, so that the relative movement between the unlocking head and the unlocking block along the Y direction is limited.

Preferably, the front Y-direction limiting part and the rear Y-direction limiting part are both second guide inclined planes, and the two second guide inclined planes are oppositely arranged.

In this technical scheme, set up preceding Y to spacing portion, back Y to spacing portion to the second direction inclined plane that sets up relatively, make the unblock head can be guided to the depressed part in by second direction inclined plane.

Preferably, the recessed portion further includes a bottom surface disposed between the two second guiding inclined surfaces, and the shape of the bottom surface matches the shape of the end surface of the unlocking head.

In the technical scheme, the concave part is arranged as a bottom surface matched with the shape of the end surface of the unlocking head; when the unlocking head extends into the concave part, the end surface of the unlocking head can be matched with the bottom surface, so that the unlocking head can smoothly drive the unlocking block to move.

Preferably, the second guiding inclined plane is a plane or an arc-shaped plane.

In this technical scheme, the second direction inclined plane of plane or arcwall face can play the guide effect of preferred.

Preferably, the unlocking block is formed by splicing two plate pieces.

In this technical scheme, through dividing into the plate that two can splice with the unblock piece, make things convenient for the processing of unblock piece and preceding X to spacing portion, the spacing portion of back X to, preceding Y to spacing portion, the formation of back Y to spacing portion.

Preferably, the second limiting part comprises a front Y-direction limiting part and a rear Y-direction limiting part, the front Y-direction limiting part is used for limiting the unlocking mechanism to move forwards along the Y direction, the rear Y-direction limiting part is used for limiting the unlocking mechanism to move backwards along the Y direction, and the front Y-direction limiting part and the rear Y-direction limiting part are respectively arranged on the two plates.

In this technical scheme, preceding Y is to spacing portion, back Y to spacing portion locate respectively on two plates, and preceding X is to spacing portion, back X to spacing portion by two plate concatenations form, conveniently understand the processing of locking piece and preceding X to spacing portion, back X to spacing portion, preceding Y to spacing portion, the formation of back Y to spacing portion.

Preferably, two plate members are fixed by spot welding.

In this technical scheme, spot welding is the fixed mode of a preferred plate, and when the plate was the metal sheet especially, the connected mode efficiency of spot welding was higher, more firm.

Preferably, the unlocking block comprises a limiting end and a connecting end, the limiting end is used for being in contact with the unlocking head of the unlocking mechanism, the connecting end is used for being connected with the locking mechanism, and the first limiting portion and the second limiting portion are located on the limiting end.

In this technical scheme, when this unblock piece is connected with the lock connecting rod, spacing end is kept away from the setting of lock connecting rod, is convenient for the unblock head to withstand the unblock piece.

Preferably, the width of the unlocking block along the X direction is gradually increased from the limiting end to the connecting end.

In the technical scheme, the width of the connecting end is large, so that the connecting strength between the unlocking block and the lock connecting rod is ensured; the width of the limiting end is smaller, so that the space between the unlocking block and the lock connecting rod can be used for accommodating an idle unlocking head or other components; the spacing end may also be adapted for other unlocking mechanisms than an unlocking head.

The utility model also provides a latch mechanism, latch mechanism includes:

the surface of the lock base is inwards recessed to form a lock groove, and the lock groove is used for allowing a lock shaft on the battery pack to enter and lock;

the lock bolt is rotatably arranged in the lock base to switch between a locking state and an unlocking state, and when the lock bolt is in the locking state, the lock bolt part is positioned in the lock groove to block the lock shaft from leaving the lock groove;

the unlocking block is fixed on the lock connecting rod according to the technical scheme.

In the technical scheme, the external unlocking mechanism can drive the lock connecting rod to move through the unlocking block by arranging the unlocking block, so that the lock tongue rotates to switch between a locking state and an unlocking state, and the lock mechanism is driven to switch from the locking state to the unlocking state.

Preferably, the unlocking piece and the lock link are integrally formed.

In this technical scheme, through above-mentioned structural arrangement, make things convenient for the manufacturing of understanding locking piece and the unlocking piece, lock the connection between the connecting rod.

Preferably, the unlocking block and the lock base are located on the same side of the lock link.

In the technical scheme, the unlocking block and the lock base seat are positioned on the same side of the lock connecting rod, so that the installation of the lock mechanism and the unlocking of the lock mechanism are facilitated.

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:

above-mentioned unlocking piece and contain its latch mechanism through setting up first spacing portion, the spacing portion of second, when making release mechanism and unlocking piece contact, the relative movement along X to and Y to between release mechanism and the unlocking piece is all restricted, can drive the unlocking piece removal when release mechanism removes to drive the removal of lock connecting rod realizes the unblock of latch mechanism.

Drawings

Fig. 1 is a schematic diagram of a battery pack used with the lock mechanism of the present invention.

Fig. 2 is a partially enlarged view of a region a of the battery pack shown in fig. 1.

Fig. 3 is a schematic structural view of the lock mechanism of the present invention.

Fig. 4 is a front view of the lock mechanism shown in fig. 3.

Fig. 5 is a schematic view of the locking bolt of the lock mechanism of fig. 3 in a locked state.

Fig. 6 is a schematic view of the locking bolt of the lock mechanism shown in fig. 3 in an unlocked state.

Fig. 7 is a schematic view of the lock link of the lock mechanism shown in fig. 3.

FIG. 8 is a cross-sectional view taken along line B-B of the lock link shown in FIG. 7.

Fig. 9 is a schematic structural diagram of the unlocking block of the present invention.

Fig. 10 is a cross-sectional view of the unlocking block shown in fig. 9 taken along line C-C.

Fig. 11 is a schematic structural view of the unlocking head matched with the unlocking block of the present invention.

Description of the reference numerals

Battery pack 100

Lock shaft 101

Lock mechanism 200

Lock base 201

Lock linkage 202

Bolt 203

Lock slot 204

Elastic reset piece 205

Unlocking block 206

First limiting part 1

Front X-direction limiting part 11

Rear X-direction stopper 12

Second limiting part 2

Front Y-direction limiting part 21

Rear Y-direction stopper 22

Recess 3

Bottom surface 31

Plate 4

Limiting end 5

Connecting end 6

Strip plate 207

Unlocking head 300

End face 301

Detailed Description

The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.

Fig. 1 to 2 are schematic structural diagrams of a battery pack of an electric vehicle for replacing batteries at the bottom. The battery pack 100 is provided at the side thereof with a plurality of latch shafts 101. The bottom of the electric vehicle is provided with an installation space for installing the battery pack 100, and the lock mechanism 200 is provided in the installation space. The lock mechanism 200 as shown in fig. 3 to 4, the lock mechanism 200 is used to lock the lock shaft 101 of the battery pack 100. When the battery pack 100 is mounted, the battery pack 100 moves to the bottom of the electric vehicle and is located below the mounting space, the battery pack 100 rises into the mounting space, and the lock shaft 101 of the battery pack 100 is locked by the lock mechanism 200. When the battery pack 100 is disassembled, the lock mechanism 200 unlocks the lock shaft 101, and the lock shaft 101 of the battery pack 100 can be disengaged from the lock mechanism 200, thereby allowing the battery pack 100 to be disengaged from the installation space.

As shown in fig. 3 to 4, the lock mechanism 200 includes a lock base 201, a lock link 202 and a lock tongue 203, a surface of the lock base 201 is recessed inward to form a lock groove 204, and the lock groove 204 is used for the lock shaft 101 on the battery pack 100 to enter and lock; the latch tongue 203 is rotatably connected to the lock base 201 and the lock link 202, and the latch tongue 203 is rotatably provided in the lock base 201 to switch between a locked state and an unlocked state.

The lock mechanism 200 further includes an elastic restoring member 205, the elastic restoring member 205 is connected to the lock link 202, and the elastic restoring member 205 always applies a force to the lock link 202 in a direction in which the lock link 202 approaches the lock base 201. When the lock link 202 is not subjected to an external force, the lock link 202 abuts against the lock base 201 by the elastic restoring member 205, so that the latch 203 is always in the lock position, and the lock shaft 101 can be stably restricted in the lock groove 204.

As shown in fig. 5, the latch tongue 203 is in a locked state, and the latch tongue 203 is partially located in the lock groove 204 to block the lock shaft 101 from leaving the lock groove 204. The locking mechanism 200 locks the battery pack 100 as follows: the battery pack 100 moves into the installation space of the electric vehicle, and the lock shaft 101 of the battery pack 100 enters the lock groove 204 of the lock base 201 and moves to the lock position. In the process that the lock shaft 101 enters the lock groove 204, the lock tongue 203 is jacked up by the lock shaft 101, the lock shaft 101 moves to the locking position in the lock groove 204, and under the action of the elastic resetting piece 205, the lock tongue 203 falls down to limit the lock shaft 101 in the lock groove 204.

As shown in fig. 6, the latch tongue 203 is in the unlocked state, the latch tongue 203 rotates to leave the lock groove 204, and the lock shaft 101 can freely enter and exit from the lock groove 204. The process of unlocking the battery pack 100 by the lock mechanism 200 is as follows: the lock connecting rod 202 moves to enable the bolt 203 to rotate to the unlocking position, the bolt 203 rotates to leave the lock groove 204, then the battery pack 100 is moved, the lock shaft 101 of the battery pack 100 is moved out of the lock groove 204, the battery pack 100 is separated from the installation space, and then the unlocking of the battery pack 100 can be achieved.

Above-mentioned lock mechanism 200 need use outside unlocking mechanism to remove lock connecting rod 202 in the unlocking process, therefore, as shown in fig. 7 to 10, lock mechanism 200 still includes unlocking piece 206, and unlocking piece 206 sets up on lock connecting rod 202, and unlocking piece 206 is used for unblocking the battery package 100 that is fixed in the electric automobile bottom through lock mechanism 200 locking, and unlocking piece 206 is used for driving lock mechanism 200 to switch to the unlocked state by the locking state under outside unlocking mechanism's drive.

The unlocking block 206 comprises a first limiting part 1 and a second limiting part 2, the first limiting part 1 limits the unlocking mechanism in the X direction, the second limiting part 2 limits the unlocking mechanism in the Y direction, and the X direction is perpendicular to the Y direction. Through setting up first spacing portion 1, the spacing portion 2 of second, when making release mechanism and unlocking piece 206 contact, the relative movement between release mechanism and the unlocking piece 206 is all restricted along X to and Y to, can drive unlocking piece 206 and remove when release mechanism removes to drive lock connecting rod 202 and remove, realize the unblock of latch mechanism 200.

Specifically, the unlocking block 206 has a recess 3, and the recess 3 is engaged with the unlocking head 300 of the unlocking mechanism. After the unlocking head 300 enters the recess 3, moving the unlocking head 300 can drive the unlocking block 206 to move, thereby driving the lock link 202 to move.

As shown in fig. 7 and 9, the first limiting portion 1 includes a front X-direction limiting portion 11 and a rear X-direction limiting portion 12, the front X-direction limiting portion 11 is used for limiting the forward movement of the unlocking head 300 along the X direction, the rear X-direction limiting portion 12 is used for limiting the backward movement of the unlocking head 300 along the X direction, and a recess 3 is formed between the front X-direction limiting portion 11 and the rear X-direction limiting portion 12. The forward X-direction limiting part 11 and the backward X-direction limiting part 12 can limit the forward or backward movement of the unlocking head 300 along the X direction, so as to limit the relative movement between the unlocking head 300 and the unlocking block 206 along the X direction.

Further, the front X-direction limiting portion 11 and the rear X-direction limiting portion 12 are first guide inclined surfaces, and the two first guide inclined surfaces are arranged oppositely. The front X-direction limiting portion 11 and the rear X-direction limiting portion 12 are arranged as first guide slopes oppositely arranged, so that the unlocking head 300 can be guided into the recess 3 by the first guide slopes. The first guide inclined surface may be a plane or an arc surface. The plane or the arc surface can play a better guiding role.

As shown in fig. 8 and 10, the second limiting portion 2 includes a front Y-direction limiting portion 21 and a rear Y-direction limiting portion 22, the front Y-direction limiting portion 21 is used for limiting the forward movement of the unlocking head 300 along the Y direction, the rear Y-direction limiting portion 22 is used for limiting the backward movement of the unlocking head 300 along the Y direction, and a recess 3 is formed between the front Y-direction limiting portion 21 and the rear Y-direction limiting portion 22. The forward or backward movement of the unlocking head 300 along the Y direction can be limited by the forward Y-direction limiting portion 21 and the backward Y-direction limiting portion 22, so that the relative movement between the unlocking head 300 and the unlocking block 206 along the Y direction is limited.

Further, the front Y-direction limiting portion 21 and the rear Y-direction limiting portion 22 are both second guide inclined surfaces, and the two second guide inclined surfaces are arranged oppositely. The front Y-direction limiting portion 21 and the rear Y-direction limiting portion 22 are set to be second guide slopes oppositely arranged, so that the unlocking head 300 can be guided into the recess 3 by the second guide slopes. Wherein, the second guiding inclined plane is a plane or an arc surface. The plane or the arc surface can play a better guiding role.

As shown in fig. 7 to 10, the recessed portion 3 includes a bottom surface 31 disposed between two first guide slopes and two second guide slopes, and the shape of the bottom surface 31 matches the shape of the end surface 301 of the unlocking head 300. The recess 3 is provided as a bottom surface 31 matching the shape of the end surface 301 of the unlocking head 300; the end surface 301 of the unlocking head 300 may be shaped as shown in fig. 11. When the unlocking head 300 extends into the recess 3, the end surface 301 of the unlocking head 300 can be matched with the bottom surface 31, so that the unlocking head 300 can smoothly drive the unlocking block 206 to move.

In this embodiment, the unlocking block 206 is configured to cooperate with the unlocking head 300. In other embodiments, the first position-limiting part 1, the second position-limiting part 2 and the recess 3 of the unlocking block 206 may be adapted according to the structure of the unlocking mechanism.

As shown in fig. 10, the unlocking block 206 is formed by splicing two plate members 4. The front X-direction limiting part 11 and the rear X-direction limiting part 12 are formed by splicing two plates 4, and the front Y-direction limiting part 21 and the rear Y-direction limiting part 22 are respectively arranged on the two plates 4. The plate 4 can be formed by stamping a metal plate, and the two plate 4 respectively form a front Y-direction limiting part 21 and a rear Y-direction limiting part 22; two punched plates 4 are spliced together to form a front X-direction limiting part 11 and a rear X-direction limiting part 12. By dividing the unlocking block 206 into two plate members 4 which can be spliced, the processing of the unlocking block 206 and the formation of the front X-direction limiting part 11, the rear X-direction limiting part 12, the front Y-direction limiting part 21 and the rear Y-direction limiting part 22 are facilitated.

Further, the two plate members 4 are fixed by spot welding. The spot welding is a better fixing mode of the plate, and particularly when the plate 4 is a metal plate, the connecting mode of the spot welding is more efficient and firmer. Besides spot welding, the two plate members 4 can be fixed by gluing, fastening or other methods.

As shown in fig. 7-8, the unlocking block 206 is integrally formed with the lock link 202. When the lock link 202 is also formed by splicing two strip-shaped plate members 207, the strip-shaped plate members 207 and the plate member 4 may be integrally formed. The strip-shaped plate 207 and the plate 4 on the same side can be formed by punching the same metal plate. Through the above-mentioned structural arrangement, the manufacture of the unlocking block 206 and the connection between the unlocking block 206 and the lock link 202 are facilitated.

As shown in fig. 7 to 9, the unlocking block 206 includes a limiting end 5 and a connecting end 6, the limiting end 5 is used for contacting with the unlocking head 300 of the unlocking mechanism, the connecting end 6 is used for connecting with the lock link 202, and the first limiting portion 1 and the second limiting portion 2 are located on the limiting end 5. When the unlocking block 206 is connected to the lock link 202, the position-limiting end 5 is disposed away from the lock link 202, so that the unlocking head 300 can be pushed against the unlocking block 206.

The width of the unlocking block 206 along the X direction is gradually increased from the limiting end 5 to the connecting end 6. The width of the connecting end 6 is large, so that the connecting strength between the unlocking block 206 and the lock connecting rod 202 is ensured; the width of the limiting end 5 is small, so that the space between the unlocking block 206 and the lock connecting rod 202 can be used for accommodating the idle unlocking head 300 or other components; the stopper 5 may also be applied to other unlocking mechanisms than the unlocking head 300.

As shown in fig. 3-4, the unlocking block 206 and the lock base 201 are located on the same side of the lock link 202. The unlocking head 300 pushes up the unlocking block 206 and the lock link 202 from the lower side of the unlocking block 206, and drives the lock tongue 203 to rotate. Locating the unlocking block 206 and the lock base 201 on the same side of the lock link 202 facilitates installation of the lock mechanism 200 and unlocking of the lock mechanism 200.

The above-described structure of the unlocking piece 206 is applicable to other lock mechanisms besides the lock mechanism 200 of the present embodiment. The unlocking block 206 may be applied to a lock mechanism that needs to be unlocked by an external unlocking mechanism.

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 (17)

1. The utility model provides an unblock piece, unblock piece sets up on the latch mechanism of electric automobile bottom, unblock piece is used for right through the battery package that the latch mechanism locking is fixed in the electric automobile bottom is unlocked, unblock piece is used for driving under outside release mechanism's the drive latch mechanism is switched to unblock state by the locking state, its characterized in that, unblock piece includes:

the first limiting part is used for limiting the unlocking mechanism in the X direction;

and the second limiting part is used for limiting the unlocking mechanism in the Y direction, and the X direction is perpendicular to the Y direction.

2. The unlocking block of claim 1, wherein the unlocking block has a recess that cooperates with an unlocking head of the unlocking mechanism; first spacing portion includes preceding X to spacing portion and the spacing portion of back X, preceding X is used for restricting to separate the tapered end along X forward motion, the spacing portion of back X is used for restricting separate the tapered end along X backward motion, preceding X constitutes between spacing portion, the spacing portion of back X to the depressed part.

3. The unlocking block of claim 2, wherein the front X-direction limiting portion and the rear X-direction limiting portion are both first guide inclined surfaces, and the two first guide inclined surfaces are arranged oppositely.

4. The unlocking block according to claim 3, wherein the recess includes a bottom surface disposed between the two first guide slopes, the bottom surface having a shape matching a shape of an end surface of the unlocking head.

5. The unlocking block of claim 3, wherein said first guide slope is a flat surface or an arc surface.

6. The unlocking block of claim 1, wherein the unlocking block has a recess that cooperates with an unlocking head of the unlocking mechanism; the second limiting part comprises a front Y-direction limiting part and a rear Y-direction limiting part, the front Y-direction limiting part is used for limiting the unlocking head to move forwards along the Y direction, the rear Y-direction limiting part is used for limiting the unlocking head to move backwards along the Y direction, and the front Y-direction limiting part and the rear Y-direction limiting part form the depressed part.

7. The unlocking block of claim 6, wherein the front Y-direction limiting portion and the rear Y-direction limiting portion are both second guide inclined surfaces, and the two second guide inclined surfaces are arranged oppositely.

8. The unlocking block according to claim 7, wherein the recess further comprises a bottom surface disposed between the two second guiding slopes, the bottom surface having a shape matching the shape of the end surface of the unlocking head.

9. The unlocking block of claim 7, wherein the second guide slope is a flat surface or an arc surface.

10. The unlocking block of claim 1, wherein the unlocking block is formed by splicing two plate members.

11. The unlocking block of claim 10, wherein the second limiting portion includes a front Y-direction limiting portion and a rear Y-direction limiting portion, the front Y-direction limiting portion is configured to limit the unlocking mechanism to move forward along the Y direction, the rear Y-direction limiting portion is configured to limit the unlocking mechanism to move backward along the Y direction, and the front Y-direction limiting portion and the rear Y-direction limiting portion are respectively disposed on the two plates.

12. The unlocking block of claim 10, wherein the two plate members are fixed by spot welding.

13. The unlocking block of claim 1, wherein the unlocking block includes a position-limiting end and a connecting end, the position-limiting end is used for contacting with the unlocking head of the unlocking mechanism, the connecting end is used for connecting with the lock mechanism, and the first position-limiting portion and the second position-limiting portion are located on the position-limiting end.

14. The unlocking block of claim 13, wherein the width of the unlocking block in the X direction increases gradually from the limit end to the connection end.

15. A lock mechanism, comprising:

the surface of the lock base is inwards recessed to form a lock groove, and the lock groove is used for allowing a lock shaft on the battery pack to enter and lock;

the lock bolt is rotatably arranged in the lock base to switch between a locking state and an unlocking state, and when the lock bolt is in the locking state, the lock bolt part is positioned in the lock groove to block the lock shaft from leaving the lock groove;

an unlocking block as claimed in any one of claims 1 to 14, said unlocking block being secured to said lock link.

16. The lock mechanism of claim 15, wherein the unlocking block is integrally formed with the lock link.

17. The lock mechanism of claim 15, wherein the unlocking block and the lock base are located on the same side of the lock link.

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