CN216443459U

CN216443459U - Locking device, bracket assembly and electric automobile

Info

Publication number: CN216443459U
Application number: CN202122300797.5U
Authority: CN
Inventors: 张建平; 仇丹梁
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-05-06
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a locking device, a bracket assembly and an electric automobile. The locking mechanism is used for locking and fixing the battery box on the electric automobile and comprises a lock seat and a limiting part, the upper side surface of the lock seat is provided with a downward extending accommodating groove, and the accommodating groove is used for accommodating a locking piece of the battery box; on the lock seat was located to spacing portion, spacing portion part at least can stretch into to the holding tank in to the restriction is located the locking piece rebound that the holding tank was located and leaves the holding tank. Through set up holding tank and spacing portion on the lock seat, spacing portion can avoid the locking piece rebound to realize the relatively fixed of battery box, can realize effectively that the battery box is fixed in vertical direction, avoid the battery box to take place to rock the problem at vertical direction relative battery bracket. The holding tank has restricted the relative battery bracket of locking piece to take place to rock in the horizontal plane simultaneously, can further improve security and the steadiness of being connected between battery box and the battery bracket.

Description

Locking device, bracket assembly and electric automobile

Technical Field

The utility model relates to the field of electric automobiles, in particular to a locking device, a bracket assembly and an electric automobile.

Background

The conventional battery box of the electric vehicle is generally arranged in a fixed type or a replaceable type, wherein the fixed type battery is generally fixed on the vehicle, and the vehicle is directly used as a charging object during charging. The replaceable battery box is typically fixed to a bracket of the vehicle by means of a movable mounting. The battery box can be removed to perform replacement or charging operation on the battery box alone. And after the replaced battery box is charged, the battery box is installed on the vehicle again.

The battery box among the prior art is fixed through locating the locking mechanism on the box side and the battery bracket locking on the electric automobile, and to the great battery box of size, after the battery box was installed on electric automobile, because the surface that locking mechanism was kept away from to the battery box does not fix with battery bracket, leads to electric automobile driving in-process, and the battery box is relative battery bracket and is easily taken place to rock along vertical direction, can't realize being connected safely firm between battery box and the battery bracket.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that a battery box with a larger size is easy to shake along the vertical direction when being placed on a battery bracket in the prior art, and provides a locking device, a bracket assembly and an electric automobile.

The utility model solves the technical problems through the following technical scheme:

a locking mechanism is used for locking and fixing a battery box on an electric automobile and comprises a lock seat and a limiting part, wherein an upper side surface of the lock seat is provided with a downward extending accommodating groove, and the accommodating groove is used for accommodating a locking piece of the battery box; the limiting part is arranged on the lock seat, and at least part of the limiting part can stretch into the accommodating groove so as to limit the locking piece in the accommodating groove to move upwards to leave the accommodating groove.

In this scheme, through setting up holding tank and spacing portion on the lock seat, spacing portion can restrict the lock piece that gets into the holding tank, avoids lock piece rebound to realize the relatively fixed of battery box, can realize effectively that battery box is fixed in vertical direction, avoid battery box relative battery bracket to take place to rock the problem in vertical direction. The holding tank has restricted the relative battery bracket of locking piece to take place to rock in the horizontal plane simultaneously, can further improve security and the steadiness of being connected between battery box and the battery bracket.

Preferably, the accommodating groove extends in a vertically downward direction;

and/or the bottom of the accommodating groove is provided with a containing surface, and the shape of the containing surface is attached to the outer side surface of the locking piece;

and/or the bottom of the accommodating groove is an arc surface.

In this scheme, the holding tank extends along vertical decurrent direction and is convenient for the smooth entering or the leaving of lock piece of battery box. The containing surface can improve the contact area and improve the stability and reliability of the locking of the battery box. The contact area of the cambered surface structure and the locking piece is large, so that the locking piece is conveniently and stably supported.

Preferably, the accommodating groove has two opposite side surfaces, and the limiting part moves from one side surface of the accommodating groove to the other side surface of the accommodating groove to be inserted into the accommodating groove.

In this scheme, spacing portion gets into or leaves the holding tank through removing, can realize locking piece efficient locking or unblock.

Preferably, the bottom surface of the limiting part is provided with an abutting surface, and the abutting surface is used for abutting against the locking piece located in the accommodating groove so as to limit the locking piece to move upwards.

In this scheme, through the mutual butt between the butt face that is located spacing portion bottom and the lock piece, further restricted the relative lock seat of lock piece along rocking of vertical direction.

Preferably, the abutting surface is a plane, and the abutting surface extends in an upward oblique direction along a direction in which the limiting part is inserted into the accommodating groove;

and/or the included angle between the abutting surface and the horizontal plane ranges from 5 degrees to 30 degrees.

And/or the length of the projection of the abutting surface on the horizontal plane is larger than the width of the accommodating groove.

In this scheme, when spacing portion stretches into the holding tank, the butt face that extends to one side can be in the size that increases gradually the pressure that applys to the locking piece, correspondingly, the reaction force that spacing portion received also crescent to can be through the size that sets up reaction force, confirm the degree of stretching into of spacing portion, can avoid stretching into not enough leading to the unable locking of battery box, also can avoid stretching into too big locking mechanism that leads to the fact and damage. The abutting surfaces extending obliquely upwards can also improve the contact area and improve the reliability and stability of fixing the lock shaft.

Preferably, the end face of the limiting part facing the side face of the accommodating groove is an abutting face, and the abutting face is attached to the corresponding side face of the accommodating groove.

In this scheme, lean on the face through the aforesaid and can reduce the gap between spacing portion and the holding tank, improve the stability of the side of the relative holding tank of spacing portion.

Preferably, the end part of the limiting part, which is used for entering the accommodating groove, is a protruding end, the protruding end is provided with a guide surface, the guide surface is obliquely and obliquely guided downwards from the upper side surface of the protruding end, and the guide surface is used for guiding the locking piece to enter the accommodating groove.

In this scheme, the spacing portion of leading surface is convenient for make dodging to the lock piece that gets into the holding tank from top to bottom, avoids spacing portion to disturb the removal of lock piece.

Preferably, the lock base is further provided with an insertion hole, the insertion hole is communicated with the accommodating groove, the limiting portion is inserted into the insertion hole, and the limiting portion extends out of the insertion hole into the accommodating groove.

In this scheme, the patchhole is convenient for guide spacing portion to remove business turn over holding tank, plays the effect of the position of spacing portion in holding tank of restriction simultaneously.

Preferably, the extension direction of the insertion hole is perpendicular to the extension direction of the receiving groove.

In this scheme, through the extending direction who sets up above-mentioned patchhole, be convenient for guide spacing portion level get into in the holding tank rock along vertical direction with the restriction locking piece.

Preferably, the lock seat is further provided with a mounting groove, the mounting groove is arranged on the other side of the insertion hole, which is away from the accommodating groove, the mounting groove is communicated with the accommodating groove through the insertion hole, and the limiting part is partially accommodated in the mounting groove.

In this scheme, through setting up above-mentioned mounting groove, be convenient for install or change spacing portion.

Preferably, the side surface of the mounting groove, which is far away from the accommodating groove, is provided with a mounting hole, one end of the limiting portion is inserted into the mounting hole, and the other end of the limiting portion penetrates through the insertion hole.

In this scheme, through set up respectively at the both ends of spacing portion and supply male mounting hole, patchhole, improved the stability that spacing portion removed along the horizontal direction.

Preferably, the end of the limiting part exceeds the side surface of the mounting hole;

and/or the mounting hole is also used for limiting the moving direction of the limiting part;

and/or the inner side surface of the mounting hole is attached to the outer side surface of the limiting part;

and/or the extending direction of the mounting hole is consistent with the moving direction of the limiting part.

In this scheme, the tip of spacing portion surpasss the side of mounting hole, when avoiding spacing portion to stretch out in the holding tank, the one end of spacing portion breaks away from in the mounting hole, leads to spacing portion to drop from the lock seat.

Preferably, the locking mechanism further comprises a reset portion, the reset portion is arranged between the lock seat and the limiting portion, and the reset portion is used for driving the limiting portion to move towards the accommodating groove.

In this scheme, the portion that resets exerts the effort that removes to the holding tank direction to spacing portion, can avoid spacing portion withdrawal to leave the problem that the wrong unblock appears in the holding tank on the one hand, and on the other hand can make spacing portion remove and then realize the function of automatic locking to the holding tank direction after the locking piece gets into the holding tank, can improve locking mechanism's security and reliability.

Preferably, one end of the reset part abuts against the lock seat, and the other end of the reset part abuts against the limiting part;

the reset part is arranged in the mounting groove of the lock seat, and one end of the reset part props against the side surface of the mounting groove;

and/or the other end of the reset part props against the other side surface of the mounting groove;

and/or the reset part is sleeved on the limit part;

and/or, the portion that resets is reset spring, reset spring cover is located the portion that resets, reset spring's one end supports lock seat, reset spring's the other end supports spacing portion.

In this scheme, through the mode that the portion that resets is set up to the aforesaid, be convenient for exert reliable and stable thrust to spacing portion, improve the stability of spacing portion to locking piece locking.

Preferably, the locking mechanism further includes a driving portion, the driving portion acts on the limiting portion, and the driving portion is used for driving the limiting portion to extend into or be away from the accommodating groove.

In this scheme, through setting up above-mentioned drive division, be convenient for control spacing portion along the horizontal direction removal stretch into or leave the holding tank.

Preferably, the driving portion acts on one end of the limiting portion away from the accommodating groove.

In this scheme, through setting up above-mentioned drive division, avoid drive division drive to move when moving to spacing portion produce the interference in the removal of holding tank.

Preferably, the driving part comprises a lock rod and a connecting piece, the lock rod extends along the moving direction of the limiting part, the connecting piece extends from the lock rod to the limiting part, and the lock rod drives the limiting part to move through the connecting piece.

In this scheme, through setting up above-mentioned locking lever and connecting piece, be convenient for control the removal of spacing portion in the position of keeping away from holding tank or spacing portion, avoid producing the interference to the removal of spacing portion.

Preferably, the connecting piece is provided with a connecting hole, and the limiting part is inserted into the connecting hole;

and/or the driving part comprises a plurality of connecting pieces which are sequentially arranged on the lock rod at intervals, and each connecting piece is correspondingly connected to different limiting parts;

and/or, the connecting piece is attached to the side surface of the lock seat;

and/or the driving part further comprises a power part, and the power part drives the lock rod to move.

In this scheme, through above-mentioned setting, be convenient for the synchronous motion of a plurality of spacing portions of simultaneous control to realize the synchronous unblock or the locking of a plurality of locking pieces.

Preferably, the locking member includes a locking shaft and a mounting seat, the locking shaft is connected to the battery box through the mounting seat, the locking shaft is used for penetrating into the accommodating groove, and the limiting portion limits the movement of the locking shaft located in the accommodating groove.

In this scheme, through above-mentioned setting, the locking piece of being convenient for mutually supports with locking mechanism in order to realize the restriction to the locking piece along vertical direction removal, has also restricted the removal of lock axle along the horizontal direction simultaneously.

Preferably, the side surface of the lock shaft facing the bottom of the accommodating groove is provided with a supporting surface, and the supporting surface is attached to the bottom surface of the accommodating groove;

and/or the supporting surface is an arc surface.

In this scheme, through the aforesaid setting, the holding tank of being convenient for forms stable support to the lock shaft, avoids the relative holding tank of lock shaft to take place to rock.

Preferably, the side surface of the lock shaft facing the limiting part is provided with an abutting surface, and the abutting surface is used for abutting against the limiting part.

Preferably, the abutting surface is a plane, and the abutting surface extends in an upward oblique direction along the direction in which the limiting part is inserted into the accommodating groove;

and/or the included angle between the butting surface and the horizontal plane is 5-30 degrees

And/or the length of the abutting surface along the direction that the limiting part is inserted into the accommodating groove is not greater than the length of the abutting surface of the limiting part along the direction that the limiting part is inserted into the accommodating groove.

In this scheme, through above-mentioned setting for the butt face covers the face of supporting completely in the direction that spacing portion inserted the holding tank, can form and block effectively the holding tank.

The bracket assembly is used for installing a battery box and comprises a bracket body and the locking mechanism, wherein the locking mechanism is arranged on the bracket body.

In this scheme, the bracket assembly that has above-mentioned structure can avoid the battery box to rock along vertical direction, improves stability and the reliability that the battery box is connected on the bracket assembly.

Preferably, the bracket assembly further comprises a bottom plate, the bottom plate is provided with a plurality of openings, and the lock seat of the locking mechanism is inserted into the openings.

In this aspect, the compactness of the bracket assembly is improved.

Preferably, the bottom of the accommodating groove is higher than the upper side surface of the bottom plate;

and/or the driving part of the locking mechanism is positioned on the lower side surface of the bottom plate;

and/or the connecting piece of the driving part of the locking mechanism extends upwards from the lower side surface of the bottom plate and exceeds the upper side surface of the bottom plate;

and/or the bottom plate is provided with a plurality of rows of the open holes; the same column includes a plurality of said apertures.

Preferably, the tray assembly further comprises a stopper extending upward from the upper side of the bottom plate, the stopper being configured to limit movement of the battery box in a horizontal plane.

In this scheme, can avoid the battery box unexpected removal in the horizontal plane.

Preferably, the cross section of the blocking piece is L-shaped, and the inner side surface of the L-shaped blocking piece is attached to the outer side surface of the battery box;

the bottom plate is quadrangle, stop the piece and be equipped with four angles of bottom plate.

In the scheme, the blocking piece and the bottom plate are simple in structure and reliable in use.

An electric vehicle comprises a battery box and the bracket assembly, wherein the battery box is installed in the bracket assembly.

In this scheme, can avoid the battery box to beat, improve electric automobile's security and reliability.

Preferably, the bottom of the battery box is provided with a plurality of reinforcing pieces, and the locking piece of the locking mechanism is connected with the reinforcing pieces.

In this scheme, can improve the structural strength of battery box.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.

The positive progress effects of the utility model are as follows:

according to the battery box fixing device, the containing groove and the limiting part are arranged on the lock seat, the limiting part can limit the locking piece entering the containing groove, and the locking piece is prevented from moving upwards, so that the battery box is fixed relatively, the battery box can be effectively fixed in the vertical direction, and the problem that the battery box shakes in the vertical direction relative to the battery bracket is avoided. Simultaneously the holding tank has restricted the relative battery tray of locking piece and has taken place to rock in the horizontal plane, can further improve security and the steadiness of being connected between battery box and the battery tray.

Drawings

Fig. 1 is a schematic perspective view of a battery box of an electric vehicle disposed on a bracket assembly according to a preferred embodiment of the utility model.

Fig. 2 is a schematic perspective view of the battery box of fig. 1 disposed at another viewing angle of the bracket assembly.

Fig. 3 is a perspective view of the bracket assembly shown in fig. 1.

Fig. 4 is a schematic perspective view of a locking structure of the bracket assembly of fig. 3.

Fig. 5 is a schematic perspective view of the locking mechanism of fig. 4 with the locking member removed.

Fig. 6 is a perspective view of a lock seat of the locking mechanism in fig. 4.

Fig. 7 is a schematic perspective view of a limiting portion of the locking mechanism in fig. 4.

Fig. 8 is a schematic perspective view of the lock rod and the connecting member of the locking mechanism of fig. 4.

Fig. 9 is a schematic perspective view of a locking member of the locking mechanism of fig. 4.

Fig. 10 is a sectional view of the locking member of fig. 9.

FIG. 11 is a perspective view of a bottom plate of the bracket assembly of FIG. 3.

Fig. 12 is a perspective view of the battery box of fig. 1.

Description of reference numerals:

locking mechanism 100

Reset part 11

Lock seat 20

Accommodating groove 21

The containing surface 211

Insertion hole 22

Mounting groove 23

Mounting hole 24

Stopper 30

Contact surface 31

Abutment surface 32

Extension end 33

Guide surface 34

Extension rod 35

Drive unit 40

Lock lever 41

Connecting piece 42

Connecting hole 43

Locking member 50

Lock shaft 51

Support surface 511

Resisting surface 512

Mounting seat 52

Bracket assembly 600

Bracket body 61

Base plate 62

Opening 63

Blocking member 64

Battery box 700

Reinforcing member 71

Detailed Description

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

Example 1

As shown in fig. 1 to 12, the present embodiment is an electric vehicle including a battery box 700 and a bracket assembly 600 as follows. The battery box 700 and the cradle assembly 600 are shown without showing other components of the electric vehicle. The battery box 700 is installed in the bracket assembly 600, so that the battery box 700 can be prevented from jumping, and the safety and reliability of the electric vehicle are improved.

In fig. 2-11, a bracket assembly 600 is shown for mounting a battery box 700, the bracket assembly 600 includes a bracket body 61 and a locking mechanism 100 as follows, the locking mechanism 100 is disposed on the bracket body 61, and can prevent the battery box 700 from jumping, and improve the stability and reliability of the battery box 700.

In fig. 4-10, a schematic diagram of a locking mechanism 100 and a related structure is shown, the locking mechanism 100 is used for locking and fixing a battery box 700 on an electric vehicle, the locking mechanism 100 includes a lock base 20 and a limiting portion 30, an upper side surface of the lock base 20 is provided with a downwardly extending accommodating groove 21, and the accommodating groove 21 is used for accommodating a locking piece 50 of the battery box 700; the limiting part 30 is disposed on the lock seat 20, and at least a portion of the limiting part 30 can extend into the accommodating groove 21 to limit the locking member 50 located in the accommodating groove 21 to move upward and leave the accommodating groove 21. Through set up holding tank 21 and spacing portion 30 on lock seat 20, spacing portion 30 can get into holding tank 21 restrict lock shaft 51, avoid locking piece 50 to move up to realize battery box 700's relatively fixed, can realize battery box 700 effectively and take place to rock the problem at vertical direction, avoid battery box 700. Meanwhile, the accommodating groove 21 limits the locking piece 50 from shaking in the horizontal plane relative to the battery bracket, so that the safety and the stability of connection between the battery box 700 and the battery bracket can be further improved.

The accommodation groove 21 extends in a vertically downward direction. The receiving groove 21 extends in a vertically downward direction to facilitate the smooth entrance or exit of the locking member 50 of the battery case 700.

The bottom of the receiving groove 21 has a receiving surface 211, and the shape of the receiving surface 211 is matched with the outer side surface of the locking member 50. The receiving surface 211 can increase the contact area and improve the stability and reliability of the locking of the battery case 700. As an embodiment, the bottom of the accommodating groove 21 is a cambered surface. The cambered surface structure has a large contact area with the locking piece 50, so that the locking piece 50 is stably supported. In other embodiments, the bottom of the containing surface 211 may also be a plane, a sphere, etc.

The receiving groove 21 has two opposite side surfaces, and the stopper 30 moves from one side surface of the receiving groove 21 to the other side surface of the receiving groove 21 to be inserted into the receiving groove 21. The stopper 30 can be moved into or out of the accommodation groove 21 to lock or unlock the lock member 50 efficiently.

The lock base 20 further has an insertion hole 22, the insertion hole 22 communicates with the receiving groove 21, the stopper 30 is inserted into the insertion hole 22, and the stopper 30 extends from the insertion hole 22 into the receiving groove 21. The insertion hole 22 facilitates guiding the movement of the stopper portion 30 into and out of the receiving groove 21, and also functions to restrict the position of the stopper portion 30 in the receiving groove 21. In the present embodiment, the insertion hole 22 may have a rectangular cross section, and the protruding end 33 of the stopper portion 30 is provided corresponding to the insertion hole 22. The protruding end 33 may also be rectangular. In other embodiments, the cross section of the insertion hole 22 may have other shapes, and the protruding end 33 of the stopper 30 may have other shapes.

The extending direction of the insertion hole 22 is perpendicular to the extending direction of the receiving groove 21, and the extending direction of the insertion hole 22 is set to facilitate the horizontal entering of the limiting part 30 into the receiving groove 21 to limit the locking piece 50 to swing along the vertical direction

The lock seat 20 is further provided with a mounting groove 23, the mounting groove 23 is arranged on the other side of the deviation between the insertion hole 22 and the accommodating groove 21, the mounting groove 23 is communicated with the accommodating groove 21 through the insertion hole 22, the limiting portion 30 is partially accommodated in the mounting groove 23, and the limiting portion 30 is convenient to mount or replace by arranging the mounting groove 23. In this embodiment, the mounting groove 23 may be a flat bottom groove, and in other embodiments, the mounting groove 23 may also have other shapes.

Mounting groove 23 is kept away from the side of holding tank 21 and is equipped with mounting hole 24, and the one end of spacing portion 30 is inserted and is located mounting hole 24, and patchhole 22 is worn to locate by the other end of spacing portion 30, sets up respectively through the both ends at spacing portion 30 and can supply male mounting hole 24, patchhole 22, has improved the stability that spacing portion 30 removed along the horizontal direction. In this embodiment, the mounting hole 24 may be a cylindrical hole, the other end of the limiting portion 30 may be an extension rod 35, the extension rod 35 is inserted into the cylindrical hole, the end of the extension rod 35 exceeds the mounting hole 24, as shown in fig. 3 and 4, the extension rod 35 is further inserted into the connecting hole 43 of the connecting member 42. The end of the extension rod 35 is also provided with a pin to prevent the extension rod 35 from sliding out of the connection hole 43.

The mounting hole 24 also serves to limit the moving direction of the stopper portion 30. The inner side surface of the mounting hole 24 is attached to the outer side surface of the stopper 30. The inner wall of the mounting hole 24 is attached to the outer wall of the stopper 30, so that the movement direction of the stopper 30 can be restricted. The extending direction of the mounting hole 24 coincides with the moving direction of the stopper 30. The mounting hole 24 is used to limit the moving direction of the stopper 30, and can improve the stability of the movement of the stopper 30.

In this embodiment, the lock base 20 may have a rectangular block shape as a whole, and the receiving groove 21 extends inward from the side of the lock base 20. The receiving groove 21 may be shaped like a "U", and the bottom of the "U" may be the containing surface 211. The mounting groove 23 may also extend inward from the side of the seat 20. The accommodating groove 21 is spaced apart from the mounting groove 23. An insertion hole 22 is provided between the accommodation groove 21 and the installation groove 23. The other side of the mounting groove 23 is provided with a mounting hole 24.

The bottom surface of the limiting part 30 is provided with an abutting surface 31, and the abutting surface 31 is used for abutting against the locking piece 50 positioned in the accommodating groove 21 so as to limit the locking piece 50 to move upwards. Through the mutual butt between the butt surface 31 at the bottom of the limiting part 30 and the locking piece 50, the locking piece 50 is further limited from shaking in the vertical direction relative to the lock base 20.

The abutment surface 31 is a flat surface, and the abutment surface 31 extends in an obliquely upward direction along the direction in which the stopper portion 30 is inserted into the accommodation groove 21. When spacing portion 30 stretches into holding tank 21, the butt face 31 that extends to one side can be at the size that increases gradually the pressure that applys to locking piece 50, correspondingly, the reaction force that spacing portion 30 received also crescent to can be through the size that sets up reaction force, confirm the degree of stretching into of spacing portion 30, can avoid stretching into not enough leading to the unable locking of battery box 700, also can avoid stretching into too greatly and cause locking mechanism 100 to damage. The abutment surface 31 extending obliquely upward can also increase the contact area, and improve the reliability and stability of the fixation to the lock shaft 51.

The abutment surface 31 has an angle with the horizontal in the range of 5-30. Specifically, the angle between the contact surface 31 and the horizontal plane may be 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, or other values.

The length of the projection of the contact surface 31 on the horizontal plane is greater than the width of the accommodation groove 21. Thereby being able to completely close the accommodation groove 21.

In other embodiments, the abutting surface 31 may also be a curved surface, a spherical surface, or the like.

The end surface of the limiting part 30 facing the side surface of the accommodating groove 21 is an abutting surface 32, and the abutting surface 32 is attached to the corresponding side surface of the accommodating groove 21. The gap between the limiting part 30 and the accommodating groove 21 can be reduced by arranging the abutting surface 32, and the stability of the limiting part 30 relative to the side surface of the accommodating groove 21 is improved. In this embodiment, the abutment surface 32 may be a flat surface. In other embodiments, the abutting surface 32 may also be a cambered surface, a spherical surface, or the like.

The end of the limiting part 30 for entering the receiving groove 21 is a protruding end 33, the protruding end 33 has a guiding surface 34, the guiding surface 34 is obliquely and downwardly guided from the upper side surface of the protruding end 33, and the guiding surface 34 is used for guiding the locking member 50 to enter the receiving groove 21. The guide surface 34 facilitates the limiting part 30 to avoid the locking piece 50 entering the accommodating groove 21 from top to bottom, and prevents the limiting part 30 from interfering with the movement of the locking piece 50. The part of the limiting part 30 which is not inserted into the accommodating groove 21 can be an extension rod 35, and external force acts on the extending end 33 through the extension rod 35 to realize the movement of the limiting part 30. Specifically, the guide surface 34 may be one of a flat surface and a curved surface. The guide surface 34 and the abutment surface 31 are located on two side surfaces of the stopper 30 opposite to each other.

The end of the limiting part 30 exceeds the side surface of the mounting hole 24, so that when the limiting part 30 extends into the accommodating groove 21, one end of the limiting part 30 is separated from the mounting hole 24, and the limiting part 30 falls off from the lock base 20.

As shown in fig. 7, the stopper 30 of the present embodiment includes a rectangular protruding end 33 and a cylindrical extension rod 35 connected to each other. The end surface of the protruding end 33 away from the extension rod 35 is an abutting surface 32. The guide surface 34 and the abutment surface 31 are located on two side surfaces opposite to the protruding end 33, respectively. The extension rod 35 is further provided with a connecting hole 43 for inserting the connecting piece 42, and the tail end of the extension rod 35 is provided with a fixing hole for inserting the pin.

The locking mechanism 100 further includes a reset portion 11, the reset portion 11 is disposed between the lock base 20 and the position-limiting portion 30, and the reset portion 11 is configured to drive the position-limiting portion 30 to move toward the accommodating groove 21. The reset part 11 applies an acting force to the limiting part 30 to move towards the accommodating groove 21, so that the problem of mistaken unlocking caused by the limiting part 30 retracting away from the accommodating groove 21 can be avoided; on the other hand, after the locking piece 50 enters the housing groove 21, the stopper 30 can be moved in the direction of the housing groove 21 to achieve the automatic locking function, and the safety and reliability of the locking mechanism 100 can be improved.

One end of the reset portion 11 abuts against the lock base 20, and the other end of the reset portion 11 abuts against the stopper portion 30.

The reset part 11 is arranged in the mounting groove 23 of the lock seat 20, and one end of the reset part 11 is abutted against the side surface of the mounting groove 23. The other end of the reset portion 11 abuts against the other side surface of the mounting groove 23.

The reset portion 11 is sleeved on the limiting portion 30. The reset part 11 is a reset spring, the reset part 11 is sleeved with the reset spring, one end of the reset spring is abutted against the lock seat 20, and the other end of the reset spring is abutted against the limiting part 30.

Through the mode of setting the reset part 11, stable and reliable thrust can be conveniently applied to the limiting part 30, and the stability of the limiting part 30 for locking the locking piece 50 is improved

As shown in fig. 4 and 5, the extension rod 35 is sleeved with the return spring. One end of the return spring abuts against the end face of the extending end close to the extension rod 35, the other end of the return spring abuts against the side face of the mounting groove 23 far away from the insertion hole 22, and the return spring is clamped in the mounting groove 23. The return spring may be in a compressed state. The protruding end 33 moves in a direction away from the receiving groove 21, and the protruding end 33 continues to move after reaching the insertion hole 22, and the return spring can abut against the protruding end 33 to apply force to the protruding end 33 to drive the protruding end 33 to move in a direction close to the receiving groove 21. The protruding end 33 can be prevented from accidentally getting away from the accommodating groove 21, and the locking safety is improved. In one embodiment, the end of the return spring may abut against the opening of the insertion hole 22, and the end of the return spring does not extend into the insertion hole 22.

The locking mechanism 100 further includes a driving portion 40, the driving portion 40 acts on the position-limiting portion 30, and the driving portion 40 is used for driving the position-limiting portion 30 to extend into or be away from the accommodating groove 21. Through setting up above-mentioned drive part 40, be convenient for control spacing portion 30 along the horizontal direction removal stretch into or leave holding tank 21. The driving part 40 acts on one end of the limiting part 30 far away from the accommodating groove 21, and interference generated on movement of the limiting part 30 in the accommodating groove 21 when the driving part drives to move is avoided.

The driving portion 40 includes a lock rod 41 and a connecting member 42, the lock rod 41 extends along the moving direction of the limiting portion 30, the connecting member 42 extends from the lock rod 41 to the limiting portion 30, and the lock rod 41 drives the limiting portion 30 to move through the connecting member 42. Through the arrangement of the lock rod 41 and the connecting piece 42, the movement of the limiting part 30 is controlled conveniently at a position far away from the accommodating groove 21 or the limiting part 30, and the interference on the movement of the limiting part 30 is avoided.

The connecting member 42 has a connecting hole 43, and the stopper 30 is inserted into the connecting hole 43.

The driving portion 40 includes a plurality of connecting members 42, the connecting members 42 are sequentially disposed on the locking bar 41 at intervals, and each connecting member 42 is correspondingly connected to different limiting portions 30. The connecting member 42 is engaged with the side surface of the lock case 20.

Through the arrangement, synchronous movement of the limiting parts 30 can be controlled conveniently and simultaneously, so that synchronous unlocking or locking of the locking pieces 50 can be realized.

The connecting piece 42 extends upwards from the upper side surface of the lock rod 41 along the vertical direction to form a protrusion, the lock base 20 is positioned above the lock rod 41 and is arranged close to the connecting piece 42, a through hole is formed in the connecting piece 42, one end of the limiting part 30 sequentially penetrates through the mounting hole 24 in the lock base 20 and the through hole in the connecting piece 42 and extends out of the through hole, and an anti-falling piece is arranged at the extending end of the limiting part 30 and is used for preventing the limiting part 30 from falling off from the through hole.

The driving part 40 further includes a power member that drives the flat latch 41 to move. The power part can be specifically an air cylinder component, a linear motor component and the like, and the movement of the lock rod 41 can be realized

The locking member 50 includes a locking shaft 51 and a mounting seat 52, the locking shaft 51 is connected to the battery box 700 through the mounting seat 52, the locking shaft 51 is used to penetrate into the accommodating groove 21, and the limiting portion 30 limits the movement of the locking shaft 51 located in the accommodating groove 21. It is convenient for the locking member 50 and the locking mechanism 100 to cooperate with each other to limit the movement of the locking member 50 in the vertical direction, and simultaneously limit the movement of the lock shaft 51 in the horizontal direction.

The side surface of the lock shaft 51 facing the bottom of the receiving groove 21 has a support surface 511, and the support surface 511 is attached to the bottom surface of the receiving groove 21.

The support surface 511 is a curved surface. In other embodiments, the support surface 511 may also be planar, spherical, etc. The accommodating groove 21 is convenient for forming stable support for the lock shaft 51, and the lock shaft 51 is prevented from shaking relative to the accommodating groove 21.

The side surface of the lock shaft 51 facing the limiting portion 30 has a contact surface 512, and the contact surface 512 is used for contacting the limiting portion 30.

The abutting surface 512 is a plane, and the abutting surface 512 extends in an upward direction along the direction in which the limiting portion 30 is inserted into the accommodating groove 21.

The included angle between the abutting surface 512 and the horizontal plane is 5-30 degrees. Specifically, the included angle between the abutting surface 512 and the horizontal plane may be 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, or other values.

The length of the abutting surface 512 along the direction in which the limiting part 30 is inserted into the receiving groove 21 is not greater than the length of the abutting surface 31 of the limiting part 30 along the direction in which the limiting part 30 is inserted into the receiving groove 21, so that the abutting surface 31 completely covers the abutting surface 512 in the direction in which the limiting part 30 is inserted into the receiving groove 21, and the receiving groove 21 can be effectively blocked.

Example 2

In fig. 2-11, a bracket assembly 600 is shown for mounting a battery box 700, the bracket assembly 600 includes a bracket body 61 and a locking mechanism 100 as follows, the locking mechanism 100 is disposed on the bracket body 61, and can prevent the battery box 700 from jumping, thereby improving the stability and reliability of the battery box 700.

The bracket assembly 600 further comprises a bottom plate 62, the bottom plate 62 is provided with a plurality of holes 63, and the lock base 20 of the locking mechanism 100 is inserted into the holes 63, so that the compactness of the bracket assembly 600 is improved.

As an embodiment, the lock housing 20 may be inserted into the opening 63. The underside of the latch base 20 may be flush with the underside of the base plate 62. The upper side of the lock housing 20 is exposed to the upper side of the base plate 62. When the locking member 50 is inserted into the receiving groove 21, a gap is formed between the locking member 50 and the upper side surface of the base plate 62.

As shown in fig. 3, the bottom of the receiving groove 21 is higher than the upper side of the bottom plate 62.

The driving portion 40 of the locking mechanism 100 is located on the lower side of the bottom plate 62, and can improve the flatness of the upper side of the bottom plate 62, facilitating the installation of the battery case 700.

The connecting member 42 of the driving portion 40 of the locking mechanism 100 extends upward from the lower side of the base plate 62 and beyond the upper side of the base plate 62; it is convenient to provide the driving part 40 at the lower side of the base plate 62.

The bottom plate 62 is provided with a plurality of rows of holes 63; the same column includes a plurality of openings 63. In this embodiment, there are 3 openings 63 in each row, and one base plate 62 has 4 rows of openings 63. In other embodiments, other values are possible.

The tray assembly 600 further includes a blocking member 64, the blocking member 64 extending upward from the upper side of the bottom plate 62, and the blocking member 64 is used for limiting the movement of the battery box 700 in the horizontal plane, so as to prevent the battery box 700 from being moved accidentally in the horizontal plane.

The cross section of the blocking member 64 is L-shaped, and the inner side of the L-shape is attached to the outer side of the battery case 700. As an embodiment, the thickness of the sidewall of the "L" shape may become larger in a direction approaching the bottom plate 62, so that the battery case 700 can be better clamped.

The base plate 62 is quadrilateral, and the blocking member 64 is provided at four corners of the base plate 62. The blocking member 64 and the bottom plate 62 have simple structures and reliable use.

As shown in fig. 12, the battery case 700 has several reinforcing members 71 at the bottom thereof, and the locking member 50 is connected to the reinforcing members 71, so that the structural strength of the battery case 700 can be improved. In the drawing, the bottom of the battery case 700 is provided with a plurality of reinforcements 71, and the lock member 50 is connected to the reinforcements 71.

Example 3

The present embodiment also provides a locking method of the battery box 700, the locking method of the battery box 700 is used for the electric vehicle as in embodiment 1 and the bracket assembly 600 as in embodiment 2;

the locking piece 50 of the control battery box 700 enters the accommodating groove 21 from top to bottom; the method specifically comprises the following steps: the driving part 40 drives the limiting part 30 to move, and the limiting part 30 leaves the accommodating groove 21; at the same time, the reset unit 11 applies an urging force to the stopper unit 30. The lock member 50 can enter the accommodation groove 21.

The battery box 700 is controlled to slide through the limiting part 30 and then move towards the direction close to the bottom of the accommodating groove 21, and the limiting part 30 extends into the accommodating groove 21; the method specifically comprises the following steps: under the action of one or both of the driving part 40 and the resetting part 11, the limiting part 30 enters the accommodating groove 21, the abutting surface 31 of the limiting part 30 applies acting force to the abutting surface 512 of the locking piece 50, and the limiting part 30 prevents the locking piece 50 from moving upwards.

The battery case 700 is controlled to move toward the bottom of the accommodating groove 21 to reach the locking position, and the locking member 50 abuts against the stopper 30. The method specifically comprises the following steps: under the action of one or both of the driving part 40 and the resetting part 11, the limiting part 30 completely enters the accommodating groove 21, the abutting surface 31 of the limiting part 30 applies acting force to the abutting surface 512 of the locking piece 50, and the limiting part 30 prevents the locking piece 50 from moving upwards. The abutting surface 32 of the stopper 30 contacts with the side surface of the accommodating groove 21. The support surface 511 of the locking member 50 abuts the receiving surface 211 of the receiving groove 21.

The locking method is convenient to operate, and can simply, conveniently and reliably lock the battery box 700 to the bracket assembly 600.

Example 4

The present embodiment also provides an unlocking method of the battery box 700, and the locking method of the battery box 700 is used for the electric vehicle as in embodiment 1 and the bracket assembly 600 as in embodiment 2;

controlling the limiting part 30 to leave the accommodating groove 21; the method specifically comprises the following steps: the driving part 40 drives the limiting part 30 to move, and the limiting part 30 completely leaves the accommodating groove 21; at the same time, the reset unit 11 applies an urging force to the stopper unit 30.

The battery case 700 at the lock position is controlled to move away from the bottom of the accommodation groove 21 to escape from the accommodation groove 21. The method specifically comprises the following steps: the locking member 50 on the battery box 700 moves upward, and the locking member 50 moves upward after exceeding the limiting part 30 until the locking member 50 leaves the accommodating groove 21. The locking method is convenient to operate, and the battery box 700 can be unlocked from the bracket assembly 600 simply, conveniently and reliably.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model 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 scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims

1. A lock mechanism for locking and fixing a battery box to an electric vehicle, the lock mechanism comprising:

the upper side surface of the lock seat is provided with a downward extending accommodating groove which is used for accommodating a locking piece of the battery box;

the limiting part is arranged on the lock seat, at least part of the limiting part can stretch into the accommodating groove to limit the locking piece in the accommodating groove to move upwards to leave the accommodating groove.

2. The latch mechanism of claim 1 wherein said receiving slot extends in a vertically downward direction;

and/or the bottom of the accommodating groove is an arc surface.

3. The lock mechanism of claim 1, wherein the receiving groove has two opposite side surfaces, and the stopper portion moves from one side surface of the receiving groove to the other side surface of the receiving groove to be inserted into the receiving groove.

4. The lock mechanism of claim 1, wherein the bottom surface of the limiting portion is provided with an abutting surface for abutting against the lock member located in the receiving groove to limit the lock member from moving upward.

5. The lock mechanism of claim 4, wherein the abutment surface is a flat surface, and the abutment surface extends in an obliquely upward direction along a direction in which the stopper portion is inserted into the receiving groove;

and/or the included angle between the abutting surface and the horizontal plane ranges from 5 degrees to 30 degrees;

and/or the projection length of the abutting surface on the horizontal plane is larger than the width of the accommodating groove.

6. The lock mechanism of claim 1, wherein the end surface of the limiting portion facing the side surface of the receiving groove is an abutting surface, and the abutting surface abuts against the corresponding side surface of the receiving groove.

7. The lock mechanism as claimed in claim 1, wherein the end of the limiting portion for entering the receiving groove is a protruding end, the protruding end has a guiding surface, the guiding surface is obliquely and downwardly guided from the upper side of the protruding end, and the guiding surface is used for guiding the locking member into the receiving groove.

8. The lock-up mechanism of claim 1, wherein the lock holder further has an insertion hole, the insertion hole communicates with the receiving groove, the stopper portion is inserted into the insertion hole, and the stopper portion protrudes from the insertion hole into the receiving groove.

9. The lock mechanism of claim 8, wherein the insertion hole extends in a direction perpendicular to the receiving groove.

10. The lock-up mechanism of claim 8, wherein the lock holder further comprises a mounting groove disposed on the other side of the insertion hole opposite to the receiving groove, the mounting groove is communicated with the receiving groove through the insertion hole, and the limiting portion is partially received in the mounting groove.

11. The locking mechanism as claimed in claim 10, wherein a mounting hole is provided on a side of the mounting groove away from the receiving groove, one end of the limiting portion is inserted into the mounting hole, and the other end of the limiting portion is inserted into the insertion hole.

12. The lock mechanism of claim 11, wherein an end of the stopper portion protrudes beyond a side surface of the mounting hole;

13. The locking mechanism of claim 1, further comprising a reset portion, wherein the reset portion is disposed between the lock base and the position-limiting portion, and the reset portion is configured to drive the position-limiting portion to move toward the receiving groove.

14. The lock mechanism of claim 13, wherein one end of the reset portion abuts against the lock seat, and the other end of the reset portion abuts against the position limiting portion;

and/or the reset part is sleeved on the limit part;

15. The locking mechanism of claim 1, further comprising a driving portion, wherein the driving portion acts on the limiting portion, and the driving portion is configured to drive the limiting portion to extend into or away from the receiving slot.

16. The lock mechanism of claim 15, wherein the drive portion acts on an end of the retention portion distal from the receiving slot.

17. The locking mechanism of claim 15, wherein the driving portion comprises a locking rod and a connecting member, the locking rod extends along a direction in which the position-limiting portion moves, the connecting member extends from the locking rod toward the position-limiting portion, and the locking rod drives the position-limiting portion to move through the connecting member.

18. The lock mechanism of claim 17, wherein the connecting member has a connecting hole, and the stopper portion is inserted into the connecting hole;

and/or, the connecting piece is attached to the side surface of the lock seat;

19. The lock mechanism as claimed in claim 1, wherein the locking member includes a locking shaft and a mounting seat, the locking shaft is connected to the battery box through the mounting seat, the locking shaft is configured to penetrate into the receiving groove, and the limiting portion limits the movement of the locking shaft located in the receiving groove.

20. The lock mechanism of claim 19, wherein the side of the lock shaft facing the bottom of the receiving groove has a support surface that abuts the bottom of the receiving groove;

and/or the supporting surface is an arc surface.

21. The lock-out mechanism of claim 19, wherein the lock shaft has an abutting surface on a side facing the position-limiting portion, and the abutting surface is configured to abut against the position-limiting portion.

22. The locking mechanism of claim 21, wherein the abutting surface is a plane, and the abutting surface extends in an oblique upward direction along a direction in which the limiting portion is inserted into the receiving groove;

and/or the included angle between the butting surface and the horizontal plane is 5-30 degrees;

23. A bracket assembly for mounting a battery box, the bracket assembly comprising a bracket body and a locking mechanism as claimed in any one of claims 1 to 22, the locking mechanism being provided on the bracket body.

24. The tray assembly of claim 23, further comprising a bottom plate having a plurality of openings, wherein the locking seat of the locking mechanism is inserted into the openings.

25. The tray assembly of claim 24, wherein the bottom of said receiving groove is higher than the upper side of said base plate;

26. The tray assembly of claim 25, further comprising a stop extending upward from the upper side of the floor, the stop for limiting movement of the battery box in a horizontal plane.

27. The tray assembly of claim 26, wherein said blocking member is "L" shaped in cross-section, an inner side of said "L" shape being adjacent to an outer side of said battery compartment;

28. An electric vehicle comprising a battery compartment and a cradle assembly as claimed in any one of claims 23 to 27, the battery compartment being mounted in the cradle assembly.

29. The electric vehicle of claim 28, wherein the bottom of the battery compartment has a plurality of reinforcing members, and the locking member of the locking mechanism is attached to the reinforcing members.