CN219096476U - Battery pack locking device for vehicle and electric vehicle - Google Patents

Abstract

The utility model discloses a battery pack locking device for a vehicle and an electric vehicle, wherein the locking device is used for locking a battery pack to the electric vehicle and comprises a first locking piece and a second locking piece, the first locking piece is provided with a locking groove, and the second locking piece comprises a locking part and an unlocking groove; the locking part is used for extending into the locking groove to lock the second locking piece on the first locking piece, and the unlocking groove is used for allowing the unlocking piece to pass through to drive the second locking piece to move relative to the first locking piece, so that the locking part can be separated from the locking groove to an unlocking position. The unlocking piece can go deep into the unlocking groove to drive the second locking piece to move, so that the movement control of the second locking piece is realized in a plug-in mode, the unlocking piece can be unlocked only by one action, the unlocking step is simplified, and the operation is simple and convenient. The unlocking groove is arranged, so that the motion of the unlocking piece can be guided, the space occupied by the unlocking piece is saved, and the electricity replacement in a narrow environment is facilitated.

Description

Battery pack locking device for vehicle and electric vehicle

Technical Field

The utility model belongs to the technical field of electric vehicles, and particularly relates to a battery pack locking device for a vehicle and an electric vehicle.

Background

After the electric quantity of the battery pack of the electric automobile is exhausted, the battery pack can be replaced at the power exchange station to quickly supplement the electric quantity for the electric automobile, and the battery pack is required to be detached from the automobile body and replaced by the fully charged battery pack, so that the locking mechanism between the battery pack and the automobile body is very important, and not only can the reliable locking between the battery pack and the automobile body be ensured, but also the battery pack can be quickly separated from the automobile body.

In general, a battery pack is connected to an electric vehicle through a locking device. The locking device generally comprises a lock seat and a lock tongue, and when the lock is unlocked, the lock tongue is driven to move through an unlocking piece to realize unlocking. However, the structure of the existing locking device is mostly complex, parts of the locking structure and the unlocking structure are numerous, and the parts are required to be precisely matched, so that the processing and assembling requirements are high, and the manufacturing cost is further increased.

In addition, when the existing unlocking piece is unlocked, the unlocking piece and the locking device are often required to be positioned in two steps, the unlocking piece is in contact with the locking device, then the unlocking piece is controlled to move relative to the locking device, and the lock tongue is driven to move to complete unlocking. Therefore, the unlocking step is complicated, the positioning requirement is high, and the vehicle power conversion efficiency is low.

Disclosure of Invention

The utility model provides a battery pack locking device for a vehicle and an electric vehicle, and aims to solve the problems of complex locking structure, multiple parts, higher processing and manufacturing cost and complex unlocking process.

The technical scheme adopted by the utility model is as follows:

a battery pack locking device for a vehicle for locking a battery pack to an electric vehicle, the locking device comprising a first locking member having a locking groove and a second locking member including a locking portion and an unlocking groove; the locking part is used for extending into the locking groove to lock the second locking piece to the first locking piece, and the unlocking groove is used for allowing the unlocking piece to pass through so as to drive the second locking piece to move relative to the first locking piece, so that the locking part is separated from the locking groove to an unlocking position.

In this scheme, through the mode that the locking part of second locking piece stretches into or takes out in the locking groove of first locking piece realizes first locking piece with the locking of second locking piece and unblock have simplified greatly first locking piece with the structure of second locking piece has reduced the processing degree of difficulty, has practiced thrift the cost. Meanwhile, the second locking piece can only move along the locking and unlocking directions, so that the second locking piece is easier to control, and the operation difficulty is reduced.

And moreover, the unlocking piece can go deep into the unlocking groove to drive the second locking piece to move, so that the movement control of the second locking piece is realized in a plug-in mode, the unlocking piece can be unlocked only by one action, namely the action of inserting the unlocking piece into the unlocking groove, the unlocking step is simplified, and the operation is simple and convenient. The unlocking groove is formed, on one hand, the unlocking piece can move in a guiding mode, the unlocking piece is limited to move along the extending direction of the unlocking groove, namely, the unlocking piece is inserted into the unlocking groove to perform unlocking movement, and the unlocking piece moves more stably. On the other hand, the unlocking piece stretches into the unlocking groove, so that the unlocking piece is partially overlapped with the second locking piece, the space occupied by the unlocking piece during unlocking is saved, unlocking and electricity changing are conveniently carried out in a narrow environment, and electricity changing convenience is improved.

Preferably, at least part of the area of the unlocking piece can pass through the unlocking groove so as to enable the unlocking piece to be abutted with the inner wall of the unlocking groove and push the second locking piece to move.

When unlocking, the unlocking piece enters the unlocking groove and moves, so that a pushing force towards the unlocking direction (the direction away from the locking groove) is formed for the second locking piece, the second locking piece is pushed to move along the unlocking direction, the locking part of the second locking piece is separated from the locking groove, and unlocking is completed.

Preferably, the unlocking groove penetrates through the second locking piece along the movement direction of the unlocking piece.

In this scheme, during the unblock, the unblock piece can run through the second locking piece, make the partial region of unblock piece can accomodate to in the unblock groove, thereby further reduce the space that the unblock piece occupy.

Preferably, the shape of the inner wall of the unlocking groove is matched with the unlocking piece.

In this scheme, the unblock groove can also be right the motion of unblock piece plays the guide effect, on the one hand will the motion of unblock piece is limited in the edge the extending direction in unblock groove makes the motion of unblock piece is more reliable, improves the unblock convenience. Meanwhile, the groove wall of the unlocking groove can also form a stop with the unlocking piece, so that the unlocking piece is limited to rotate relative to the second locking piece.

Preferably, the inner wall of the unlocking groove is provided with a matching surface for matching with the unlocking piece, and the unlocking piece moves along the matching surface to drive the second locking piece to move relative to the first locking piece.

In this scheme, the mating surface with the unblock piece cooperation can change the unblock piece is to the effort direction of second locking piece, and then the direction of motion of unblock piece can not with the direction of motion of second locking piece, for example, the extending direction of unblock groove with the direction of unblock of second locking piece is perpendicular, when the unblock piece stretches into in the unblock groove, and with when the mating surface cooperates, the unblock piece is to the thrust of second locking piece passes through the mating surface orientation the component of second locking piece unblock direction, and then reduce the second locking piece with the motion scope of unblock piece reduces the unblock piece with the space that occupies when the second locking piece moves.

Preferably, the mating surface is an inclined surface structure.

In this scheme, inclined plane simple structure workable, and when the unlatching piece acts on the inclined plane structure, the inclined plane structure can with the push force of unlatching piece breaks down into the component of two directions, thereby makes can set up in a flexible way the direction of motion of unlatching piece, through the inclined plane structure turn into to the thrust of second locking piece orientation unblock direction.

Preferably, the inner wall of the unlocking groove is further provided with a guiding plane, and the guiding plane is located at one side far away from the unlocking piece and is used for being matched with the unlocking piece to limit the second locking piece to the unlocking position.

In this scheme, when the unlocking piece is followed after the fitting surface motion unblock, guide plane with the unlocking piece contact, at this moment the unlocking piece can't continue to follow again the fitting surface lateral movement, but can only be followed guide plane's extending direction motion, thereby restriction the motion scope of unlocking piece reduces the space that occupies when the unlocking piece unblock.

Preferably, the guide plane is contiguous with the mating surface.

In this scheme, the guide plane extends along the inner wall of unlocking groove, so that the guide plane is in the low reaches along the direction of motion of unlocking piece with the mating surface is adjoined, thereby makes the unlocking piece follow the mating surface motion is accomplished the unblock after, at least one side of unlocking piece with the guide plane contact, and receive the guide effect of guide plane, make the unlocking piece follow the direction of extension of unlocking groove.

Preferably, a guide surface is provided on the opposite side of the locking groove and/or the locking portion.

In this scheme, the guide surface makes locking part with the grafting cooperation in locking groove is more convenient to be fixed a position, and the guide locking part inserts in the locking groove, appropriate offset the two errors of processing and assembly, guarantee the two effective grafting cooperation.

Preferably, the locking groove extends along a length direction of the locking portion, and a depth of the locking groove is not smaller than a length of the locking portion so as to accommodate the locking portion into the locking groove.

The locking groove can be used for accommodating the locking part, the locking part is prevented from extending into one side of the first locking piece and extending out of the other side of the first locking piece, the locking part is positioned in the locking groove, and the first locking piece protects the locking part and prevents the locking part from interfering with other parts.

Preferably, the locking groove extends in a horizontal direction, and the second locking member moves in a horizontal direction relative to the first locking member so that the locking portion extends into or disengages from the locking groove.

In this scheme, the second locking piece along the horizontal direction with locking groove grafting locking or break away from the unblock makes the locking cooperation of first locking piece with the second locking piece is more reliable, reduces gravity to the influence of second locking piece motion prevents the second locking piece is followed under the action of gravity the locking inslot drops. In addition, the locking and unlocking of horizontal direction still make the battery package install and dismantle from one side of vehicle, and then need not to jack up the vehicle, improves the convenience of changing the electricity.

Preferably, the unlocking piece passes through the unlocking groove along the vertical direction and drives the second locking piece to move along the horizontal direction.

The motion direction of the unlocking piece is mutually perpendicular to the locking and unlocking directions of the second locking piece, the motion range of the unlocking piece and the second locking piece in the unlocking direction is reduced, and therefore the space occupied by the unlocking piece and the locking device in the unlocking process is reduced, and the power exchanging operation is facilitated in a small space.

Preferably, the locking device further comprises a reset piece, one end of the reset piece acts on the second locking piece, and the reset piece is used for providing acting force for the second locking piece to move towards the locking groove.

In this scheme, work as the unlatching piece is followed stretch out in the unblock groove the unlatching piece loses to the push of second locking piece, at this moment the second locking piece is in orientation under the thrust action of restoring to the throne the locking groove motion, and then resumes to the locking state, and then need not the manual operation of user and make it reset, improves the convenience of use. Similarly, after the battery pack and the vehicle are aligned, the second locking piece can automatically complete locking under the pushing of the reset piece, so that the battery pack is fixed on the vehicle.

Preferably, one of the first locking member and the second locking member is provided on the vehicle body, and the other is provided on the battery pack.

One of the first locking piece and the second locking piece is arranged on the battery pack, and the other one of the first locking piece and the second locking piece is arranged on the vehicle body, so that the battery pack and the vehicle body are fixed by means of plug-in matching of the first locking piece and the second locking piece, and the battery pack is fixed on the vehicle body.

The utility model also discloses an electric vehicle comprising the battery pack locking device for the vehicle.

The vehicle and the battery pack are locked through the locking device, the structure of the locking device is simple, the manufacturing cost is low, the corresponding structural improvement on the vehicle and the battery pack is facilitated, the transformation cost is reduced, and meanwhile, the locking mode of the first locking piece and the second locking piece is simple and easy to operate, so that the battery pack and the vehicle are matched and positioned more simply and conveniently, and the battery pack are improved in power conversion efficiency.

In addition, the unlocking piece stretches into the unlocking groove, so that the unlocking piece is partially overlapped with the second locking piece, the space occupied by the unlocking piece during unlocking is saved, unlocking and electricity changing are conveniently carried out in a narrow space, and electricity changing convenience is improved.

The utility model has the positive progress effects that:

according to the utility model, the locking part of the second locking piece stretches into or withdraws from the locking groove of the first locking piece to lock and unlock the first locking piece and the second locking piece, so that the structures of the first locking piece and the second locking piece are greatly simplified, the processing difficulty is reduced, and the cost is saved. Meanwhile, the second locking piece can only move along the locking and unlocking directions, so that the second locking piece is easier to control, and the operation difficulty is reduced. Moreover, the unlocking piece can go deep into the unlocking groove to drive the second locking piece to move, so that the movement control of the second locking piece is realized in a plug-in mode, the unlocking piece can be unlocked only by one action, namely the action of inserting the unlocking piece into the unlocking groove, the unlocking step is simplified, and the operation is simple and convenient. The unlocking groove is arranged, so that the motion of the unlocking piece can be guided, the unlocking piece is limited to move along the extending direction of the unlocking groove, namely, the unlocking piece is inserted into the unlocking groove to perform unlocking motion, and the motion of the unlocking piece is more stable. On the other hand, the unlocking piece stretches into the unlocking groove, so that the unlocking piece and the second locking piece are partially overlapped, the space occupied by the unlocking piece during unlocking is saved, unlocking and electricity changing are conveniently carried out in a narrow environment, and electricity changing convenience is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of a locking device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an unlocking member according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of the locking device of FIG. 1;

FIG. 4 is a cross-sectional view of the second latch member of FIG. 3;

FIG. 5 is a cross-sectional view of a locking device according to one embodiment of the present utility model, wherein the second locking member is in a locked state;

FIG. 6 is a cross-sectional view of the locking device of FIG. 5 with the second locking member in an unlocked state;

FIG. 7 is a schematic view of a first locking member according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a second locking member according to an embodiment of the present utility model;

fig. 9 is a schematic structural view of the second locking member in fig. 8 in another view.

Wherein:

1 a first locking member; 11 a locking groove;

2 a second locking member; a 21 locking part; 211 guide surfaces; 22 unlocking grooves; 221 mating surfaces; 222 guide plane;

3 unlocking piece; 31 an unlocking part; 311 contact surfaces; 312 limit surfaces.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the descriptions of the terms "implementation," "embodiment," "one embodiment," "example," or "particular example" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 9, a battery pack locking device for a vehicle for locking a battery pack to an electric vehicle includes a first locking member 1 having a locking groove 11 and a second locking member 2 including a locking portion 21 and an unlocking groove 22; the locking part 21 is used for extending into the locking groove 11 to lock the second locking piece 2 to the first locking piece 1, and the unlocking groove 22 is used for allowing the unlocking piece 3 to pass through to drive the second locking piece 2 to move relative to the first locking piece 1, so that the locking part 21 is separated from the locking groove 11 to an unlocking position.

According to the utility model, the locking part 21 of the second locking piece 2 stretches into or withdraws from the locking groove 11 of the first locking piece 1 to realize locking and unlocking of the first locking piece 1 and the second locking piece 2, so that the structures of the first locking piece 1 and the second locking piece 2 are greatly simplified, the processing difficulty is reduced, and the cost is saved. Meanwhile, the second locking piece 2 can only move along the locking and unlocking directions, so that the second locking piece 2 is easier to control, and the operation difficulty is reduced.

Moreover, the unlocking piece 3 can go deep into the unlocking groove 22 to drive the second locking piece 2 to move, so that the movement control of the second locking piece 2 is realized in a plug-in mode, the unlocking piece 3 can complete unlocking only by one action, namely the action of inserting the unlocking piece into the unlocking groove 22, the unlocking step is simplified, and the operation is simple and convenient. The unlocking groove 22 is arranged, so that on one hand, the motion of the unlocking piece 3 can be guided, the unlocking piece 3 is limited to move along the extending direction of the unlocking groove 22, namely, the unlocking piece 3 can only perform unlocking motion when being inserted into the unlocking groove 22, and the motion of the unlocking piece 3 is more stable. On the other hand, the unlocking piece 3 stretches into the unlocking groove 22, so that the unlocking piece 3 and the second locking piece 2 are partially overlapped, the space occupied by the unlocking piece 3 during unlocking is saved, unlocking and power changing are conveniently carried out in a narrow environment, and power changing convenience is improved.

Specifically, as shown in fig. 1 and 3, the first locking member 1 and the second locking member 2 are disposed perpendicular to each other, the locking groove 11 is disposed on one side of the first locking member 1, and the second locking member 2 is movable in a locking direction (a direction toward the locking groove 11) and an unlocking direction (a direction away from the unlocking groove 11) to complete locking and unlocking.

It should be noted that the shape of the locking portion 21 is not particularly limited in the present utility model, and in one embodiment, the locking portion 21 is cylindrical, conical, truncated cone-shaped, etc. so that the cross section thereof is circular, and the locking groove 11 is correspondingly circular. In another embodiment, the cross section of the locking portion 21 is non-circular, such as square, rectangle, trapezoid, pentagon, etc., and the shape of the locking groove 11 is adapted to the locking portion 21, so that after the locking portion and the locking groove are matched, the locking portion 21 is limited to rotate around the axis thereof by an edge, and the matching stability of the locking portion and the locking groove is improved.

Further, as shown in fig. 5, at least a partial region of the unlocking member 3 can pass through the unlocking groove 22 to make the unlocking member 3 abut against the inner wall of the unlocking groove 22 and push the second locking member 2 to move.

The second locking piece 2 moves towards the unlocking direction by the pushing force of the unlocking piece 3 to the second locking piece 2, so that the unlocking piece 3 is matched with the second locking piece 2 more simply and reliably.

In the present embodiment, as shown in fig. 1, 3 to 6, the unlocking groove 22 penetrates the second locking member 2 in the moving direction of the unlocking member 3.

It should be noted that, in other embodiments, the depth of the unlocking slot 22 is smaller than the thickness of the second locking member 2, so that the unlocking slot 22 is a slot structure with one end open and the other end closed, so that the unlocking slot 22 can limit the movement amount of the unlocking member 3, and when the unlocking member 3 moves to contact with the bottom wall of the unlocking slot 22, the unlocking member 3 cannot move continuously, but can only be pulled out from the unlocking slot 22 in the opposite direction.

Further, as shown in fig. 2, 5, and 6, the unlocking member 3 includes an unlocking portion 31, and the unlocking portion 31 is capable of penetrating into the unlocking groove 22 and moving along the unlocking groove 22.

Preferably, as shown in fig. 1, 2 and 5, the shape of the inner wall of the unlocking groove 22 is adapted to the unlocking piece 3.

In a preferred embodiment, as shown in fig. 2, 8 and 9, the unlocking member 3 has a plate-like structure, and the unlocking groove 22 has a rectangular shape, so that the unlocking member 3 can be guided and a stop can be formed with the side wall of the unlocking member 3, thereby limiting the unlocking member 3 to rotate in the unlocking groove 22.

In the present utility model, the movement direction of the second locking member 2 and the unlocking member 3 is not particularly limited, and preferably, as shown in fig. 5 and 6, the locking groove 21 extends in the horizontal direction, and the second locking member 2 moves in the horizontal direction with respect to the first locking member 1 so that the locking portion 21 extends into the locking groove 11 or is separated from the locking groove 11.

The second locking piece 2 is inserted into the locking groove 11 along the horizontal direction to be locked or separated from the locking groove 11 to be unlocked, so that the locking cooperation of the first locking piece 1 and the second locking piece 2 is more reliable, the influence of gravity on the movement of the second locking piece 2 is reduced, and the second locking piece 2 is prevented from falling off from the locking groove 11 under the action of gravity. In addition, locking and unlocking of horizontal direction still make the battery package install and dismantle from electric vehicle's one side, and then need not to jack-up electric vehicle, improves the convenience of changing the electricity.

In one embodiment, the unlocking member 3 may be consistent with the movement direction of the second locking member 2, so as to directly push the second locking member 2 to move, for example, the unlocking member 3 extends into the locking groove 11 from the other side of the first locking member 1 to push the locking portion 21, so that the locking portion 21 is pushed out from the locking groove 11.

As a preferred embodiment, as shown in fig. 5 and 6, the unlocking member 3 passes through the unlocking slot 22 in the vertical direction and drives the second locking member 2 to move in the horizontal direction.

The motion direction of the unlocking piece 3 is mutually perpendicular to the locking and unlocking directions of the second locking piece 2, so that the motion range of the unlocking piece 3 and the second locking piece 2 in the unlocking direction is reduced, the space occupied by the unlocking piece 3 and the locking device in the unlocking process is further reduced, and the power exchanging operation is facilitated in a smaller space.

Specifically, as shown in fig. 3 to 6, 8 and 9, the inner wall of the unlocking groove 22 is provided with a mating surface 221 for mating with the unlocking member 3, and the unlocking member 3 moves along the mating surface 221 to drive the second locking member 2 to move relative to the first locking member 1.

The mating surface 221 is mated with the unlocking member 3, so that the acting force direction of the unlocking member 3 to the second locking member 2 can be changed, and then the moving direction of the unlocking member 3 may not be consistent with the moving direction of the second locking member 2, for example, the extending direction of the unlocking slot 22 is perpendicular to the unlocking direction of the second locking member 2, when the unlocking member 3 stretches into the unlocking slot 22 and mates with the mating surface 221, the pushing force of the unlocking member 3 to the second locking member 2 forms a component force towards the unlocking direction of the second locking member 2 through the mating surface 221, and the component force pushes the second locking member 2 to move along the unlocking direction, so that the moving range of the second locking member 2 and the unlocking member 3 is reduced, and the space occupied by the unlocking member 3 and the second locking member 2 during moving is reduced.

The shape of the mating surface 221 is not particularly limited in the present utility model, and in a preferred example, as shown in fig. 3 to 6, the mating surface 221 has a slope structure.

Specifically, as shown in fig. 5 and 6, when the unlocking member 3 extends into the unlocking groove 22 in the vertical direction, under the movement of the unlocking member 3 in the vertical direction, one side of the unlocking member 3 facing the unlocking direction contacts and abuts against the mating surface 221 of the inner wall of the unlocking groove 22. The mating surface 221 breaks down the force of the unlocking member 3 in the vertical direction into a component force directed in the vertical direction and a component force directed in the horizontal direction, and thus the second locking member 2 is moved laterally in the unlocking direction by the component force, thereby unlocking the lock.

Of course, the mating surface 221 may be an arc surface or the like, so long as the direction of the urging force of the unlocking member 3 can be changed by the mating surface 221, and the present utility model is not limited thereto.

As shown in fig. 2, one side of the unlocking member 3 is provided with a contact surface 311 which is matched with the shape of the matching surface 221 so as to improve the matching stability of the unlocking member and the matching surface.

Further, as shown in fig. 4, the inner wall of the unlocking groove 22 is further provided with a guiding plane 222, and the guiding plane 222 is located at a side far away from the unlocking member 3 and is used for being matched with the unlocking member 3 to limit the second locking member 2 to the unlocking position.

As shown in fig. 6, after the unlocking member 3 moves along the mating surface 221 to unlock, the guiding plane 222 contacts with the unlocking member 3, at this time, the unlocking member 3 cannot move laterally along the mating surface 221 any more, but only moves along the extending direction of the guiding plane 222, so as to limit the movement range of the unlocking member 3, further limit the second locking member 2 to the unlocking position, and reduce the space occupied when the unlocking member 3 is unlocked.

For example, as shown in fig. 5, during unlocking of the unlocking member 3, the contact surface 311 on the unlocking member 3 contacts with the mating surface 221 on the inner wall of the unlocking groove 22, the unlocking member 3 moves obliquely upward along the mating surface 221, there is a displacement in the vertical direction and a displacement in the horizontal direction, and when the unlocking member 3 moves to the end of the mating surface 221 along the mating surface 221, the unlocking action is completed, as shown in fig. 6, at this time, if the unlocking member 3 is pushed upward continuously, the limiting surface 312 of the unlocking member 3 abuts against the guiding plane 222, and the unlocking member 3 can only move upward under the limiting action of the guiding plane 222 and cannot move laterally.

Meanwhile, as shown in fig. 6, the unlocking member 3 is located in the unlocking groove 22, and can form a stop with the second locking member 2, so that the second locking member 2 is kept at the unlocking position without returning to the locking state until the user pulls out the unlocking member 3 from the unlocking groove 22.

Further, as shown in fig. 4, the guide plane 222 abuts the mating surface 221.

The guide plane 222 extends along the inner wall of the unlocking groove 22 such that the guide plane 222 abuts against the mating surface 221 downstream in the movement direction of the unlocking member 3, so that at least one side surface of the unlocking member 3 contacts the guide plane 222 after the unlocking member 3 moves along the mating surface 221 to complete unlocking, and the unlocking member 3 moves in the extending direction (vertical direction as in fig. 6) of the unlocking groove 22 without moving laterally by the guide action of the guide plane 222.

As a preferred embodiment of the present utility model, the opposite side of the locking groove 11 and/or the locking portion 21 is provided with a guide surface 211.

In the present embodiment, the installation position of the guide surface 211 is not particularly limited, but in the present embodiment, as shown in fig. 7, the guide surface 211 is provided on the locking portion 21, and in other embodiments, the guide surface 211 is provided on the first locking member 1 and surrounds the locking groove 11. In yet another embodiment, both the first locking member 1 and the locking portion 21 are provided with guiding surfaces 211 to improve the positioning effect of both and to reduce the machining and assembly accuracy requirements.

The guide surface 211 may be an inclined surface, an arc surface, an irregular curved surface, or the like, so long as the guide surface can guide the insertion of the two, and is not particularly limited herein.

In a preferred embodiment, as shown in fig. 3, the locking groove 11 extends in the length direction of the locking portion 21, and the depth of the locking groove 11 is not less than the length of the locking portion 21 to receive the locking portion 21 into the locking groove 11.

The locking groove 11 can accommodate the locking portion 21, prevent the locking portion 21 from extending into and out of one side of the first locking piece 1, and the locking portion 21 is located in the locking groove 11, and the first locking piece 1 protects the locking portion 21, preventing the locking portion 21 from interfering with other components.

Preferably, the locking device further comprises a restoring member, one end of which acts on the second locking member 2, the restoring member being adapted to provide the second locking member 2 with a force moving in the direction of the locking groove 11.

After the unlocking piece 3 stretches out from the unlocking groove 22, the unlocking piece 3 loses pushing of the second locking piece 2, at the moment, the second locking piece 2 moves towards the locking groove 11 under the action of the pushing force of the resetting piece, and then the locking piece is restored to the locking state, and further the user does not need to manually operate to reset the locking piece, so that the use convenience is improved. Similarly, after the battery pack is aligned with the electric vehicle, the second locking member 2 can automatically complete locking under the pushing of the reset member, so that the battery pack is fixed on the electric vehicle.

The present utility model is not limited to the positions of the first locking member 1 and the second locking member 2, and one of the first locking member 1 and the second locking member 2 is provided to the electric vehicle body, and the other is provided to the battery pack.

In one embodiment, the first locking member 1 is provided to the electric vehicle body and the second locking member 2 is provided to the battery pack. In the power exchange process, firstly, the unlocking piece 3 is operated to move along the vertical direction, the second locking piece 2 is pushed to move along the horizontal direction to unlock with the first locking piece 1, then the battery pack is lifted upwards to a certain height so as to leave a bearing position on the body of the electric vehicle, and then the battery pack is transversely moved towards the direction away from the vehicle to be taken down. The battery pack may be mounted by the reverse operation.

Of course, in another embodiment, the first locking member 1 may be disposed on the battery pack, and the corresponding second locking member 2 may be disposed on the electric vehicle body.

The utility model also discloses an electric vehicle comprising the battery pack locking device for the vehicle.

The electric vehicle and the battery pack are locked through the locking device, the structure of the locking device is simple, the manufacturing cost is low, the corresponding structural improvement on the vehicle and the battery pack is facilitated, the transformation cost is reduced, and meanwhile, the locking mode of the first locking piece 1 and the second locking piece 2 is simple and easy to operate, so that the battery pack and the vehicle are matched and positioned more simply and conveniently, and the battery pack are improved in power conversion efficiency.

In addition, unlocking piece 3 stretches into in unlocking groove 22 for unlocking piece 3 and second locking piece 2 partial coincidence, thereby saved the used space of unlocking piece 3 when unblock, conveniently carry out the unblock in narrower space and trade the electricity, improve and trade the electric convenience.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (15)

1. A battery pack locking device for a vehicle is used for locking a battery pack to an electric vehicle, and is characterized in that,

the locking device comprises a first locking piece and a second locking piece, wherein the first locking piece is provided with a locking groove, and the second locking piece comprises a locking part and an unlocking groove; the locking part is used for extending into the locking groove to lock the second locking piece to the first locking piece, and the unlocking groove is used for allowing the unlocking piece to pass through so as to drive the second locking piece to move relative to the first locking piece, so that the locking part is separated from the locking groove to an unlocking position.

2. The vehicular battery pack locking device according to claim 1, wherein,

at least part of the area of the unlocking piece can pass through the unlocking groove so that the unlocking piece is abutted with the inner wall of the unlocking groove and pushes the second locking piece to move.

3. The vehicular battery pack locking device according to claim 2, wherein,

the unlocking groove penetrates through the second locking piece along the movement direction of the unlocking piece.

4. The vehicular battery pack locking device according to claim 2, wherein,

the inner wall shape of the unlocking groove is matched with the unlocking piece.

5. The vehicular battery pack locking device according to claim 3, wherein,

the inner wall of the unlocking groove is provided with a matching surface for matching with the unlocking piece, and the unlocking piece moves along the matching surface to drive the second locking piece to move relative to the first locking piece.

6. The vehicular battery pack locking device according to claim 5, wherein,

the matching surface is of an inclined surface structure.

7. The vehicular battery pack locking device according to claim 5, wherein,

the inner wall of the unlocking groove is further provided with a guide plane, and the guide plane is located at one side far away from the unlocking piece and is used for being matched with the unlocking piece to limit the second locking piece to the unlocking position.

8. The vehicular battery pack locking device according to claim 7, wherein,

the guide plane is contiguous with the mating surface.

9. The vehicular battery pack locking device according to claim 1, wherein,

the locking groove and/or the opposite side of the locking part is provided with a guide surface.

10. The vehicular battery pack locking device according to claim 1, wherein,

the locking groove extends along the length direction of the locking part, and the depth of the locking groove is not smaller than the length of the locking part so as to store the locking part into the locking groove.

11. The vehicular battery pack locking device according to claim 1, wherein,

the locking groove extends along the horizontal direction, and the second locking piece moves along the horizontal direction relative to the first locking piece so that the locking part stretches into the locking groove or is separated from the locking groove.

12. The vehicular battery pack locking device according to claim 11, wherein,

the unlocking piece passes through the unlocking groove along the vertical direction and drives the second locking piece to move along the horizontal direction.

13. The vehicular battery pack locking device according to claim 1, wherein,

the locking device further comprises a reset piece, one end of the reset piece acts on the second locking piece, and the reset piece is used for providing acting force for the second locking piece to move towards the locking groove.

14. The vehicular battery pack locking device according to any one of claims 1 to 13, wherein,

one of the first locking piece and the second locking piece is arranged on the vehicle body, and the other one of the first locking piece and the second locking piece is arranged on the battery pack.

15. An electric vehicle, characterized in that,

comprising a battery pack locking device for a vehicle according to any one of claims 1 to 14.

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