CN216443458U

CN216443458U - Locking device, bracket assembly and electric automobile

Info

Publication number: CN216443458U
Application number: CN202122266035.8U
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: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-05-06
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses a locking device, a bracket assembly and an electric automobile, wherein a locking mechanism comprises a lock seat and a limiting part, one end of the lock seat is provided with an opening, the side surface of the lock seat is provided with a slideway extending along the sliding-in direction of a battery box, the opening is communicated with the slideway, the opening is used for enabling a locking piece of the battery box to enter the slideway, and the slideway is used for guiding the locking piece to move to a locking position; spacing portion is rotatable to be located on the lock seat, and spacing portion part can stretch into to the slide in at least to the restriction is located the locking piece of locking position and moves to the opening. The lock shaft arranged on the battery box sequentially enters the slide way from the opening, the limit part correspondingly arranged with the lock shaft can limit the lock shaft, and the axial opening of the lock shaft is prevented from moving, so that the battery box is fixed, a plurality of lock seat assemblies are prevented from being arranged on the same side face of the battery box, the problem of inconsistency among the plurality of lock seat assemblies is avoided, the precision requirement of the lock seat is reduced, and the installation steps of the lock seat are simplified.

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.

Usually, after the battery box is mounted to the bracket, the locking device on the bracket can realize the fixation of the battery box. The locking device generally includes a lock seat assembly and a lock shaft, which are correspondingly disposed, the lock shaft is generally disposed on the battery box, and the lock seat assembly is generally disposed on the bracket. The lock seat assembly can realize the fixation of the lock shaft, so that the fixation of the battery box is realized.

On the same side of the carrier, it is often necessary to provide a plurality of corresponding lock housing assemblies and lock shafts. A plurality of latch bracket assemblies are spaced apart on the carrier. A plurality of lock housing assemblies need to ensure a high degree of consistency to ensure that the corresponding lock shafts are secured by the lock housing assemblies. The accuracy requirements of positioning and mounting dimension of a plurality of lock seat assemblies are high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that the consistency of a plurality of lock seats on a bracket is high in requirement 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 lock mechanism for locking and fixing a battery case to an electric vehicle, the lock mechanism comprising: the battery box locking device comprises a lock seat and a limiting part, wherein one end of the lock seat is provided with an opening, the side surface of the lock seat is provided with a slide way extending along the sliding-in direction of the battery box, the opening is communicated with the slide way, the opening is used for enabling a locking piece of the battery box to enter the slide way, and the slide way is used for guiding the locking piece to move to a locking position; the limiting part is rotatably arranged on the lock seat, and at least part of the limiting part can extend into the slide way to limit the locking piece located at the locking position to move towards the opening.

In this scheme, the lock axle of locating the battery box gets into the slide in order from the opening, can restrict the lock axle with the corresponding spacing portion that sets up of lock axle, avoids lock axial opening to remove to realize the fixed of battery box, avoided setting up a plurality of lock seat subassemblies in the same side of battery box, avoided inconsistent problem between a plurality of lock seat subassemblies, also reduced the required precision of the mounting dimension of lock seat, simplified the installation procedure of lock seat.

Preferably, the limiting part is arranged on the lock seat through a pivot shaft, the pivot shaft is arranged above or below the slide way, and the limiting part rotates around the pivot shaft to be inserted into or far away from the slide way.

In this scheme, spacing portion is through rotating around the pivotal axis to spacing portion is inserting or keeping away from the motion process of slide, and the movement track of spacing portion is fixed relatively, and spacing portion motion process is more steady, can avoid spacing portion can't insert or leave the slide.

Preferably, a first mounting seat is arranged on the top surface or the bottom surface of the lock seat and used for mounting the pivot shaft, the mounting seat comprises side plates arranged at intervals relatively, and the pivot shaft penetrates through the side plates.

In this scheme, first mount pad includes the curb plate that relative interval set up, simple structure. The pivotal shaft penetrates through the side plates arranged at intervals, and the structure is stable.

Preferably, the locking mechanism further includes a torsion spring, the pivot shaft is sleeved with the torsion spring, two ends of the torsion spring respectively abut against the lock seat and the limiting portion, and the torsion spring is used for driving the limiting portion to extend into the slide way.

In this scheme, the torsional spring orders about spacing portion and stretches into to the slide in, can avoid locking mechanism mistake unblock, improves the security.

Preferably, the limiting portion is provided with a sliding surface facing the opening, and the sliding surface is used for abutting the locking piece to the locking position in the sliding process of the locking piece so as to drive the limiting portion to rotate away from the slide way.

In this scheme, the glide plane can reduce the lock shaft and slide the resistance of spacing portion from the opening, improves the ride comfort of lock shaft, spacing portion motion process.

Preferably, the included angle between the sliding surface and the horizontal plane is in the range of 30-60 degrees.

In the scheme, the included angle ranges from 30 degrees to 60 degrees, so that the smoothness of the motion process of the lock shaft and the limiting part can be ensured, and the efficiency of lifting the limiting part when the lock shaft is abutted can also be ensured.

Preferably, the limiting part is provided with an abutting surface in the direction away from the opening, and the abutting surface is used for abutting against the locking piece located at the locking position so as to limit the locking piece to move towards the opening.

In this aspect, the abutting surface can improve reliability and stability of fixing the lock shaft.

Preferably, the abutting surface is matched with the shape of the outer side surface of the locking piece;

and/or the abutting surface is an arc surface.

In this scheme, can improve the area of contact between spacing portion and the lock axle, can further improve reliability and stability fixed to the lock axle.

Preferably, the bottom of the limiting part is provided with a sliding surface, the limiting part moves along the slideway from the opening, and after passing through the lowest point of the sliding surface, the limiting part moves downwards and is inserted into the slideway.

In this scheme, the landing face makes spacing portion can slide down fast, realizes blockking of slide, can improve the efficiency to the lock shaft locking.

Preferably, the limiting part further comprises a blocking surface, and after the limiting part is inserted into the slideway, the blocking surface is used for blocking the limiting part to continue rotating.

In this scheme, stop the face and can avoid spacing portion transition whereabouts, avoid spacing portion to insert the slide excessively deeply for spacing portion can insert the slide with suitable degree of depth, can guarantee the fixed to the lock shaft, also can improve spacing portion and insert or leave the efficiency of slide.

Preferably, the blocking surface is used for abutting against the lock seat to block the limiting part from continuing rotating.

In this scheme, block the face through propping lock seat, can realize the restriction to spacing portion reliably.

Preferably, the lock seat is provided with an insertion hole at the top or bottom of the slide way, and the limiting part extends into the slide way from the insertion hole.

In this scheme, spacing portion stretches into the slide through the inserted hole for locking mechanism's structure is more reasonable, can improve locking mechanism's compactedness.

Preferably, the locking mechanism further comprises an unlocking portion, and the unlocking portion acts on the limiting portion to release the movement restriction of the limiting portion on the locking member.

In this scheme, the unblock portion removes the restriction of the removal of spacing portion to the lock axle to make the smooth removal of lock axle, and then realize the change of battery box.

Preferably, the unlocking part is provided with an unlocking inclined plane, the limiting part is provided with a sliding part, and the unlocking inclined plane is used for guiding the sliding part to move so as to drive the limiting part to leave the slideway.

In this scheme, the unblock face can reduce the resistance between unblock groove and the sliding part, improves the ride comfort of unblock portion, spacing portion motion process.

Preferably, the angle between the unlocking inclined plane and the horizontal plane is 20-45 degrees.

The included angle ranges from 20 degrees to 45 degrees, so that the smoothness of the unlocking part and the limiting part in the moving process can be ensured, and the lifting efficiency of the limiting part can also be ensured.

Preferably, the unlocking part has an unlocking groove, the sliding part is located in the unlocking groove, and the unlocking inclined surface is located in the unlocking groove.

In the scheme, the unlocking groove passes through the sliding part to remove the movement limitation of the limiting part on the lock shaft, and the lock shaft is simple in structure and reliable in use.

Preferably, the height of the unlocking groove is greater than the moving distance of the limiting part in the height direction.

In this scheme, can avoid the unlocking groove to interfere the removal of spacing portion, avoid appearing the problem that spacing portion card is dead or be difficult to the unblock.

Preferably, the unlocking groove is a triangular groove, and the long side of the triangular groove is the unlocking inclined plane.

In the scheme, the triangular groove is simple in structure and convenient to manufacture.

Preferably, the limiting part is provided with one or more of a pivot hole, a sliding hole and an inserting part, and the pivot hole and the sliding hole are positioned outside the lock seat; the insertion portion is located in the lock case when inserted.

Preferably, the pivot hole and the sliding hole are respectively arranged at two ends of the insertion part along the horizontal direction;

and/or the pivot hole and the sliding hole are arranged on the same side of the insertion part along the vertical direction.

Preferably, the locking mechanism includes at least 2 limiting portions, and the unlocking portion is provided with an unlocking inclined surface corresponding to the limiting portions.

In the scheme, the synchronous operation of the limiting part can be realized, and the unlocking efficiency is improved.

Preferably, the locking mechanism further comprises a power piece, and the power piece drives the unlocking portion to move.

In the scheme, the power part drives the unlocking part to move, so that the limiting part is moved, and the structure is simple and efficient.

Preferably, the power member drives the unlocking portion to move along the direction in which the slide extends.

In this scheme, can improve the uniformity that sets up the direction between each part of locking mechanism, improve the compactness of locking mechanism.

Preferably, the locking mechanism further comprises a reset member, and the reset member acts on the unlocking portion to drive the unlocking portion to release the action on the limiting portion.

In this scheme, the piece that resets can avoid appearing the problem of mistake unblock, can improve locking mechanism's security and reliability.

Preferably, the unlocking part is provided with a containing groove, the resetting part is arranged in the containing groove, the resetting part acts on the side wall of the containing groove, and the resetting part drives the unlocking part to move towards the direction of the opening.

In this scheme, the piece that resets is located in the storage tank, and locking mechanism's structure is simpler, compact.

Preferably, the side wall of the accommodating groove is provided with a protruding part, and the protruding part is used for sleeving the reset piece;

and/or, the top surface or the bottom surface of lock seat is equipped with the second mount pad, be equipped with the bellying on the second mount pad, the bellying is used for the cover to establish reset the piece.

Preferably, the bottom of the unlocking part is attached to the top surface of the lock seat;

or the top of the unlocking part is attached to the bottom edge of the lock seat.

Preferably, a plurality of the limiting parts are sequentially arranged at intervals along the extending direction of the slide way.

In this scheme, can be more reliable carry out the spacing of battery box.

Preferably, the cross section of the slideway is U-shaped, and the mouth of the U-shaped is towards the battery box;

and/or one end of the lock seat, which is provided with the opening, is provided with a guide surface, and the guide surface extends from the bottom surface of the slide way to the top surface of the slide way along the extension direction of the slide way;

and/or a gap is arranged between the lower side surface of the slideway and the lower side surface of the locking piece;

and/or a gap is formed between the upper side surface of the slideway and the upper side surface of the locking piece.

In this scheme, the slide is slided into more conveniently to the jam axle of the battery box of being convenient for of spigot surface.

Set up the clearance between the downside of slide and the lock axle, can avoid crossing spacingly to the lock axle, can also reduce the resistance that the battery box removed the in-process, improve the ride comfort that the battery box removed.

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

In this scheme, can reduce the bracket assembly degree of difficulty, improve the installation effectiveness of bracket assembly.

Preferably, the bracket assembly further comprises a back plate, the back plate is arranged on the bracket body, an electrical connection socket is arranged on the back plate, and the electrical connection socket is used for being connected with an electrical connection plug of the battery box.

In this scheme, can further improve the reliability of battery box steadiness and electricity connection.

Preferably, the bracket assembly comprises two sets of locking mechanisms, and the two sets of locking mechanisms are oppositely arranged on two sides of the bracket body;

and/or a plurality of supporting pieces are arranged at the bottom of the bracket body and used for supporting the battery box.

In this scheme, two sets of locking mechanism can realize the fixed to the battery box better.

The support can reduce the rigidity requirement on the battery box.

Preferably, the support member includes a plurality of rolling members, and the rolling members are arranged at intervals along the sliding-in direction of the battery box.

In this scheme, the rolling member can reduce the resistance of battery box slip process.

Preferably, when the bottom of the battery box is supported on the supporting member, a gap is formed between the locking member on the battery box and the bottom wall of the slide way.

Preferably, a gap is formed between the bottom of the bracket body and the bottom of the battery box, and the lock holder supports the locking member.

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

In this scheme, the battery box of electric automobile installs in the bracket assembly, can improve the stability and the reliability of battery box.

Preferably, the battery box locking surface is provided with a locking piece, and the locking piece is matched with the locking mechanism to realize the locking of the telescopic battery box on the bracket.

Preferably, the locking member is a lock shaft.

Preferably, the locking piece is a raised line extending outwards from the locking surface, a raised part is arranged on the upper surface of the raised line, and the raised part is used for abutting against the limiting part.

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 utility model, the lock shafts arranged on the battery box sequentially enter the slide way from the opening, the limiting parts arranged corresponding to the lock shafts can limit the lock shafts, and the lock shafts are prevented from moving along the axial opening, so that the battery box is fixed, a plurality of lock seat assemblies are prevented from being arranged on the same side surface of the battery box, the problem of inconsistency among the plurality of lock seat assemblies is avoided, the precision requirement of the installation size of the lock seats is reduced, and the installation steps of the lock seats are simplified.

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 perspective view of the bracket assembly shown in fig. 1.

Fig. 3 is a partially enlarged perspective view of the bracket assembly of fig. 2.

Fig. 4 is a schematic perspective view of the locking device in fig. 2.

Fig. 5 is a front view of the locking device of fig. 4.

Fig. 6 is a schematic view of the locking device of fig. 4 without showing the unlocking part.

Fig. 7 is a schematic structural view of the lock holder in fig. 4.

Fig. 8 is a schematic structural view of the limiting portion in fig. 4.

Fig. 9 is a front view of the stopper in fig. 8.

Fig. 10 is a schematic structural view of the unlocking part in fig. 4.

Fig. 11 is another structural diagram of the unlocking part in fig. 4.

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

Fig. 13 is a schematic perspective view of another battery box of an electric vehicle disposed on a bracket assembly according to a preferred embodiment of the utility model.

Fig. 14 is a perspective view of the battery box of fig. 13.

Description of reference numerals:

locking mechanism 100

Torsion spring 11

Lock seat 20

Opening 21

Slide way 22

First mounting seat 23

Side plate 231

Insertion opening 24

Guide surface 25

Second mounting seat 26

Stopper 30

Pivotal shaft 31

Sliding surface 32

Abutment surface 33

Sliding surface 34

Stop surface 35

Pivot hole 36

Slide hole 37

Insertion portion 38

Sliding part 39

Unlocking part 40

Unlocking ramp 41

Unlocking slot 42

Reset piece 43

The accommodation groove 44

Convex part 45

Receiving hole 46

Bracket assembly 500

Bracket body 51

Back plate 52

Electrical connection socket 53

Support member 54

Rolling member 55

Battery box 600

Locking piece 61

Lock shaft 62

Convex strip 63

Convex part 64

Locking surface 65

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.

As shown in fig. 1 to 12, the present embodiment is an electric vehicle, which includes a battery box 600 and a bracket assembly 500 as follows, wherein the battery box 600 and the bracket assembly 500 are shown, and other parts of the electric vehicle are not shown. The battery box 600 of the electric vehicle is mounted in the bracket assembly 500, and the stability and reliability of the battery box 600 can be improved.

In fig. 2-12, a bracket assembly 500 is shown for mounting a battery box 600, the bracket assembly 500 includes a bracket body 51 and a locking mechanism 100 as follows, the locking mechanism 100 is disposed on a side surface of the bracket body 51, so that the assembly difficulty of the bracket assembly 500 can be reduced, and the mounting efficiency of the bracket assembly 500 can be improved.

In fig. 4 to 12, there is shown a locking mechanism 100 for locking and fixing a battery box 600 to an electric vehicle, the locking mechanism 100 including: the battery box locking device comprises a lock seat 20 and a limiting part 30, wherein one end of the lock seat 20 is provided with an opening 21, the side surface of the lock seat 20 is provided with a slide way 22 extending along the sliding-in direction of the battery box 600, the opening 21 is communicated with the slide way 22, the opening 21 is used for enabling a locking piece 61 of the battery box 600 to enter the slide way 22, and the slide way 22 is used for guiding the locking piece 61 to move to a locking position; the limiting part 30 is rotatably disposed on the lock base 20, and at least a portion of the limiting part 30 can extend into the slide way 22 to limit the locking piece 61 located at the locking position to move towards the opening 21. The lock shaft 62 arranged on the battery box 600 sequentially enters the slide 22 from the opening 21, the limiting part 30 correspondingly arranged with the lock shaft 62 can limit the lock shaft 62, and the lock shaft 62 is prevented from moving towards the opening 21, so that the battery box 600 is fixed, a plurality of lock seat 20 components are prevented from being arranged on the same side face of the battery box 600, the problem of inconsistency among the plurality of lock seat 20 components is avoided, the precision requirement of the installation size of the lock seat 20 is also reduced, and the installation steps of the lock seat 20 are simplified.

The locking mechanism 100 further includes a torsion spring 11, the pivot shaft 31 is sleeved with the torsion spring 11, two ends of the torsion spring 11 respectively abut against the lock seat 20 and the limiting portion 30, and the torsion spring 11 is used for driving the limiting portion 30 to extend into the slide rail 22. The torsion spring 11 drives the limiting part 30 to extend into the slideway 22, so that the locking mechanism 100 can be prevented from being unlocked by mistake, and the safety is improved.

The limiting part 30 is disposed on the lock base 20 through a pivot shaft 31, the pivot shaft 31 is disposed above or below the slide rail 22, and the limiting part 30 rotates around the pivot shaft 31 to be inserted into or separated from the slide rail 22. The limiting part 30 rotates around the pivot shaft 31, so that the movement track of the limiting part 30 is relatively fixed in the movement process of inserting or keeping away from the slide way 22 of the limiting part 30, the movement process of the limiting part 30 is more stable, and the situation that the limiting part 30 cannot be inserted into or leave the slide way 22 can be avoided.

The limiting portion 30 has a sliding surface 32 facing the opening 21, and the sliding surface 32 is used for abutting against the locking member 61 in the sliding process of the locking member 61 to the locking position so as to drive the limiting portion 30 to rotate away from the slide 22. The sliding surface 32 can reduce the resistance of the lock shaft 62 sliding through the limiting part 30 from the opening 21, and improve the smoothness of the motion process of the lock shaft 62 and the limiting part 30.

In one embodiment, the sliding surface 32 is angled from the horizontal in the range of 30 to 60. The included angle ranges from 30 degrees to 60 degrees, which not only can ensure the smoothness of the motion process of the lock shaft 62 and the limiting part 30, but also can ensure the lifting efficiency of the limiting part 30 when the lock shaft 62 is collided. Specifically, the angle between the sliding surface 32 and the horizontal plane may be 30 °, 40 °, 45 °, 50 °, 55 °, or 60 °, or may have other values.

The stopper 30 has an abutting surface 33 in a direction away from the opening 21, and the abutting surface 33 abuts against the lock member 61 located at the lock position to restrict the lock member 61 from moving toward the opening 21. The abutment surface 33 can improve the reliability and stability of fixing to the lock shaft 62.

The abutment surface 33 matches the shape of the outer side surface of the lock member 61. The abutment surface 33 is specifically a curved surface.

The contact surface 33 can increase the contact area between the stopper portion 30 and the lock shaft 62, and can further improve the reliability and stability of fixing to the lock shaft 62.

The bottom of the position-limiting part 30 has a sliding surface 34, the position-limiting part 30 moves along the slide way 22 from the opening 21, and after the position-limiting part 30 passes through the lowest point of the sliding surface 34, the position-limiting part 30 is inserted downwards into the slide way 22. The sliding surface 34 enables the limiting portion 30 to slide down quickly, blocking of the slide rail 22 is achieved, and locking efficiency of the lock shaft 62 can be improved. In fig. 9, the projection of the sliding surface 34 may be an arc, or may be another curve or polygonal line.

The limiting part 30 further comprises a blocking surface 35, and after the limiting part 30 is inserted into the slide way 22, the blocking surface 35 is used for blocking the limiting part 30 from continuing to rotate. Stop face 35 and can avoid spacing portion 30 transition whereabouts, avoid spacing portion 30 to insert slide 22 too deeply for spacing portion 30 can insert slide 22 with suitable degree of depth, can guarantee the fixed of lock axle 62, also can improve spacing portion 30 and insert or leave the efficiency of slide 22.

The blocking surface 35 is used to abut against the lock seat 20 to block the limiting portion 30 from further rotating. The stopper surface 35 abuts against the lock holder 20, whereby the stopper 30 can be reliably restricted.

Stop face 35 specifically can be the plane, in other embodiments, stop face 35 also can be flexible face, rough surface etc. the flexible face can reduce the noise that spacing portion 30 collided lock seat 20, and rough surface can improve frictional force, can further avoid spacing portion 30 to remove.

The limiting part 30 is provided with one or more of a pivot hole 36, a sliding hole 37 and an inserting part 38, and the pivot hole 36 and the sliding hole 37 are positioned outside the lock seat 20; the insert portion 38 is positioned within the lock housing 20 when inserted. The pivot hole 36 and the slide hole 37 are provided at both ends of the insertion portion 38 in the horizontal direction, respectively. The pivot hole 36 and the slide hole 37 are provided on the same side of the insertion portion 38 in the vertical direction. The pivot hole 36 and the slide hole 37 may be circular holes, or may be holes of other shapes. The insertion portion 38 may be triangular in shape as a whole, and the sliding surface 32 and the contact surface 33 are provided on two adjacent sides of the triangle, respectively. The sliding surface 34 is provided between the sliding surface 32 and the contact surface 33. In other embodiments, the shape of the insert 38 may be other shapes.

The top surface or the bottom surface of lock seat 20 are equipped with first mount pad 23, and first mount pad 23 is used for installing pivot axle 31, and the mount pad includes the curb plate 231 that relative interval set up, and pivot axle 31 wears to locate curb plate 231. The first mounting seat 23 includes side plates 231 spaced apart from each other, and thus has a simple structure. The pivot shaft 31 is inserted through the side plates 231 arranged at intervals, and the structure is stable.

The lock seat 20 is provided with an insertion opening 24 at the top or bottom of the slide way 22, and the limiting part 30 extends into the slide way 22 from the insertion opening 24. The limiting part 30 extends into the slide way 22 through the insertion opening 24, so that the structure of the locking mechanism 100 is more reasonable, and the compactness of the locking mechanism 100 can be improved.

The cross section of the slide rail 22 is in a U shape, and the opening of the U shape faces the battery box 600. The cross-section of the slideway 22 may also be of other shapes in other embodiments, such as circular arc, quadrilateral, etc.

One end of the lock base 20 having the opening 21 is provided with a guide surface 25, and the guide surface 25 extends from the bottom surface of the slide 22 toward the top surface of the slide 22 along the direction in which the slide 22 extends. The guide surface 25 facilitates the latch shaft 62 of the battery case 600 to slide into the slide 22 more easily. The guide surface 25 may be a plane, or may be a smooth curved surface such as a curved surface or a paraboloid.

There is a gap between the underside of the slide 22 and the underside of the locking member 61. A gap is provided between the upper side surface of the slide 22 and the upper side surface of the lock member 61. Set up the clearance between the downside of slide 22 and the lock axle 62, can avoid crossing spacingly to lock axle 62, can also reduce the resistance that battery box 600 removed the in-process, improve the smoothness that battery box 600 removed.

In this embodiment, the lock base 20 may be a rectangular strip as a whole, and the slide 22 is provided with a side of the rectangular strip. The ends of the rectangular strips are provided with guide surfaces 25. The upper side of the rectangular strip is provided with an insertion opening 24 and a first mounting seat 23. In fig. 7, the first mounting seat 23 may be an inverted "U" shaped notch. The opening 21 of the "U" shaped notch faces the insertion opening 24. The insertion opening 24 communicates inwardly with the chute 22. The limiting part 30 is pivoted on two side walls of the U-shaped notch. The width of the "U" shaped slot is greater than the width of the insertion opening 24. The stop surface 35 of the stopper 30 may overlap the edge of the insertion opening 24. In other embodiments, the lock holder 20, the first mounting seat 23, and the insertion opening 24 may have other shapes, and the first mounting seat 23 and the insertion opening 24 may be provided at other positions of the lock holder 20 as needed.

The lock mechanism 100 further includes an unlocking portion 40, and the unlocking portion 40 acts on the stopper portion 30 to release the movement restriction of the stopper 61 by the stopper portion 30. The unlocking unit 40 releases the movement restriction of the lock shaft 62 by the stopper 30, so that the lock shaft 62 can be smoothly moved, and the battery box 600 can be replaced.

The unlocking portion 40 has an unlocking inclined surface 41, the limiting portion 30 is provided with a sliding portion 39, and the unlocking inclined surface 41 is used for guiding the sliding portion 39 to move so as to drive the limiting portion 30 to leave the slide way 22. The unlocking surface can reduce the resistance between the unlocking groove 42 and the limiting part 30, and improve the smoothness of the motion process of the unlocking part 40 and the limiting part 30. The sliding portion 39 may be a cylindrical rod.

The angle between the unlocking inclined surface 41 and the horizontal plane is in the range of 20-45 degrees. The included angle ranges from 20 degrees to 45 degrees, which not only can ensure the smoothness of the motion process of the unlocking part 40 and the limiting part 30, but also can ensure the lifting efficiency of the limiting part 30. The included angle between the unlocking inclined surface 41 and the horizontal plane may be 20 °, 25 °, 30 °, 35 °, 40 °, 45 °, or other values.

The unlocking portion 40 has an unlocking groove 42, the sliding portion 39 is located in the unlocking groove 42, and the unlocking slope 41 is located in the unlocking groove 42. The unlocking groove 42 releases the movement restriction of the lock shaft 62 by the limiting part 30 through the sliding part 39, and the structure is simple and the use is reliable.

The height of the unlocking groove 42 is larger than the moving distance of the height direction of the limiting part 30, so that the unlocking groove 42 can be prevented from interfering with the movement of the limiting part 30, and the problem that the limiting part 30 is blocked or is difficult to unlock is avoided.

The lock mechanism 100 further includes a reset member 43, and the reset member 43 acts on the unlocking portion 40 to urge the unlocking portion 40 to release the action on the stopper portion 30. The reset piece 43 can avoid the problem of mistaken unlocking, and the safety and reliability of the locking mechanism 100 can be improved. In this embodiment, the restoring member 43 may be a coil spring, and in other embodiments, the restoring member 43 may also be a hydraulic spring, an air cylinder, or the like

The unlocking portion 40 has an accommodating groove 44, the resetting member 43 is disposed in the accommodating groove 44, the resetting member 43 acts on a side wall of the accommodating groove 44, and the resetting member 43 drives the unlocking portion 40 to move toward the opening 21. The reset piece 43 is arranged in the accommodating groove 44, so that the structure of the locking mechanism 100 is simpler and more compact. In the present embodiment, the receiving groove 44 may be a rectangular groove. In other embodiments, the receiving groove 44 may have other shapes.

The sidewall of the receiving groove 44 is provided with a protrusion 64, and the protrusion 64 is used for sleeving the reset element 43. The boss 64 may be embodied as a cylindrical mounting post. In other embodiments, the boss 64 may have other shapes. In fig. 11, a receiving hole 46 may be further formed at a side surface of the receiving groove 44, and a portion of the restoring member 43 may be inserted into the receiving hole 46.

The top surface or the bottom surface of the lock base 20 is provided with a second mounting base 26, the second mounting base 26 is provided with a protruding portion 64, and the protruding portion 64 is used for sleeving the reset piece 43.

The bottom of the unlocking part 40 abuts against the top surface of the lock base 20. The top of the unlocking part 40 is attached to the bottom edge of the lock base 20.

In this embodiment, the unlocking portion 40 may be specifically an unlocking lever, and the unlocking lever may be a rectangular bar. The unlocking groove 42 is provided on the unlocking lever. The receiving groove 44 is provided at the bottom of the lock release lever.

The unlocking groove 42 is a triangular groove, and the long side of the triangular groove is an unlocking inclined surface 41. The triangular groove has simple structure and convenient manufacture. In other embodiments, the unlocking slot 42 may have other shapes.

Preferably, the locking mechanism 100 includes at least 2 limiting portions 30, and the unlocking inclined surface 41 corresponding to the limiting portions 30 is disposed on the unlocking portion 40, so that the synchronous operation of the limiting portions 30 can be realized, and the unlocking efficiency can be improved.

The plurality of stopper portions 30 are sequentially provided at intervals in the direction in which the slide rail 22 extends, and the battery box 600 can be more reliably stopped. In the figure, the number of the limiting parts 30 is 3, in other embodiments, the number of the limiting parts 30 may be other values, and the limiting parts may be set accordingly according to the fixing requirements of the battery box 600.

The locking mechanism 100 further includes a power member that moves the unlocking portion 40. The power part drives the unlocking part 40 to move, so that the limiting part 30 moves, and the structure is simple and efficient. The power component can be specifically an air cylinder component, a linear motor component and the like, and the unlocking part 40 can be moved.

The power member drives the unlocking portion 40 to move in the direction in which the slide rail 22 extends, so that the arrangement directions of the components of the lock mechanism 100 can be made uniform, and the compactness of the lock mechanism 100 can be improved.

In fig. 2 and 3, the bracket assembly 500 further includes a back plate 52, the back plate 52 is disposed on the bracket body 51, the back plate 52 is provided with an electrical connection socket 53, and the electrical connection socket 53 is used for being connected with an electrical connection plug of the battery box 600, so that the stability and the reliability of electrical connection of the battery box 600 can be further improved.

The carriage assembly 500 includes two sets of locking mechanisms 100, and the two sets of locking mechanisms 100 are oppositely disposed on both sides of the carriage body 51. Two sets of locking mechanisms 100 can better achieve fixation of battery box 600.

The bottom of the bracket body 51 is provided with a plurality of supporting members 54, and the supporting members 54 are used for supporting the battery box 600. The support 54 can reduce the stiffness requirements for the battery box 600.

The support member 54 includes a plurality of rolling members 55, and the rolling members 55 are arranged at intervals in a direction in which the battery case 600 slides in. The rolling members 55 can reduce the resistance of the battery case 600 during the sliding process.

When the bottom of the battery box 600 is supported on the supporting member 54, there is a gap between the locking member 61 of the battery box 600 and the bottom wall of the slide 22. The bottom of the bracket body 51 has a gap with the bottom of the battery case 600, and the lock holder 20 supports the locking member 61.

The battery box 600 locking surface 65 is provided with a locking piece 61, and the locking piece 61 is matched with the locking mechanism 100 to realize the locking of the telescopic battery box 600 on the bracket. In fig. 12, the lock member 61 of the lock surface 65 of the battery case 600 is a lock shaft 62.

As shown in fig. 13 to 14, a battery box 600 and a bracket assembly 500 of another structure of an electric vehicle are shown. The battery box 600 and the bracket assembly 500 are shown, and other components of the electric vehicle are not shown. The battery box 600 and the bracket assembly 500 shown in fig. 13 and 14 are substantially the same as the battery box 600 and the bracket assembly 500 shown in fig. 1 to 12, except that the locking member 61 of the battery box 600 shown in fig. 13 and 14 is a protruding strip 63 extending outward from the locking surface 65, the upper surface of the protruding strip 63 is provided with a protruding portion 64, and the protruding portion 64 is used for abutting against the limiting portion 30.

Specifically, the cross section of the protruding strip 63 may be "L" shaped, one side of the "L" shape is attached to the locking surface 65, and the protrusion 64 is disposed on the other side of the "L" shape. The boss 64 may be cylindrical in particular. In other embodiments, the convex strips 63 and the convex portions 64 may have other structures.

The present embodiment also provides a locking method of the battery box 600, the locking method of the battery box 600 is used for the electric vehicle as described in any one of the above;

controlling the battery box 600 to enter the slideway 22 from the opening 21;

the battery box 600 is controlled to slide through the limiting part 30 and then move continuously in the direction away from the opening 21, and the limiting part 30 extends into the slide way 22;

the battery case 600 is controlled to move in a direction approaching the opening 21 until the lock member 61 reaches the lock position, and the lock member 61 abuts against the stopper 30.

The locking method of the battery box 600 is convenient to operate, and the battery box 600 can be simply, conveniently and reliably locked to the bracket assembly 500.

The embodiment also provides an unlocking method of the battery box 600, which is used for unlocking the battery box 600 on the battery bracket, and the unlocking method of the battery box 600 is used for the electric automobile;

controlling the battery box 600 on the battery bracket to move to the first position in the direction away from the opening 21;

the unlocking part 40 is driven to move so as to drive the limiting part 30 to rotate away from the slide way 22;

the battery box 600 in the first position is controlled to move in a direction close to the opening 21 to be detached from the battery tray.

The locking method of the battery box 600 is convenient to operate, and the battery box 600 can be simply, conveniently and reliably unlocked from the bracket assembly 500.

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 battery box locking device comprises a lock seat, wherein one end of the lock seat is provided with an opening, the side surface of the lock seat is provided with a slide way extending along the sliding-in direction of the battery box, the opening is communicated with the slide way, the opening is used for enabling a locking piece of the battery box to enter the slide way, and the slide way is used for guiding the locking piece to move to a locking position;

spacing portion, spacing portion is rotatable to be located on the lock seat, spacing portion at least part can stretch into extremely in the slide to the restriction is located the locking piece to the opening removes.

2. The lock mechanism of claim 1, wherein the position-limiting portion is disposed on the lock base by a pivot shaft, the pivot shaft is disposed above or below the slide way, and the position-limiting portion rotates around the pivot shaft to be inserted into or away from the slide way.

3. The locking mechanism of claim 2, wherein the lock holder is provided with a first mounting seat on a top surface or a bottom surface thereof, the first mounting seat is used for mounting the pivot shaft, the mounting seat comprises side plates arranged at intervals, and the pivot shaft is arranged through the side plates.

4. The locking mechanism of claim 2, further comprising a torsion spring, wherein the torsion spring is sleeved on the pivot shaft, two ends of the torsion spring respectively abut against the lock seat and the limiting portion, and the torsion spring is used for driving the limiting portion to extend into the slide way.

5. The locking mechanism of claim 1, wherein the position-limiting portion has a sliding surface facing the opening, and the sliding surface is used for the locking member to abut against the locking member during sliding to the locking position, so as to drive the position-limiting portion to rotate away from the slide way.

6. The lock mechanism of claim 5, wherein the angle of the sliding surface to the horizontal is in the range of 30 ° to 60 °.

7. The lock mechanism of claim 1, wherein the position-limiting portion has an abutting surface in a direction away from the opening, and the abutting surface is configured to abut against the lock member in the lock position to limit the lock member from moving toward the opening.

8. The locking mechanism of claim 7, wherein the abutment surface matches the shape of the outer side of the locking member;

and/or the abutting surface is an arc surface.

9. The lock mechanism of claim 1, wherein the bottom of the limiting portion has a sliding surface, the limiting portion moves along the slide way from the opening, and after the limiting portion passes through the lowest point of the sliding surface, the limiting portion moves downwards and is inserted into the slide way.

10. The locking mechanism of claim 1, wherein the limiting portion further comprises a blocking surface, and after the limiting portion is inserted into the slide way, the blocking surface is used for blocking the limiting portion from continuing to rotate.

11. The locking mechanism of claim 10, wherein the blocking surface is configured to abut against the lock seat to block the limiting portion from further rotating.

12. The lock mechanism of claim 1, wherein the lock base is provided with an insertion opening at the top or bottom of the slide way, and the limiting portion extends into the slide way from the insertion opening.

13. The lock mechanism of claim 1, further comprising an unlocking portion that acts on the stopper portion to release the restriction of movement of the lock member by the stopper portion.

14. The locking mechanism of claim 13, wherein the unlocking portion has an unlocking inclined surface, the limiting portion is provided with a sliding portion, and the unlocking inclined surface is used for guiding the sliding portion to move so as to drive the limiting portion to leave the slideway.

15. The locking mechanism of claim 14, wherein the unlocking ramp is angled from the horizontal in the range of 20 ° to 45 °.

16. The locking mechanism of claim 14, wherein the unlocking portion has an unlocking slot, the sliding portion is located in the unlocking slot, and the unlocking ramp is located in the unlocking slot.

17. The lock mechanism of claim 16, wherein the height of the unlocking groove is greater than the moving distance in the height direction of the stopper portion.

18. The locking mechanism of claim 16, wherein the unlocking slot is a triangular slot, and the long side of the triangular slot is the unlocking ramp.

19. The locking mechanism of claim 1, wherein the limiting portion has one or more of a pivot hole, a slide hole, and an insertion portion, the pivot hole and the slide hole being located outside the lock housing; the insertion portion is located in the lock case when inserted.

20. The lock mechanism of claim 19, wherein the pivot hole and the slide hole are provided at both ends of the insertion portion in a horizontal direction, respectively;

21. The lock mechanism of claim 13, wherein the lock mechanism comprises at least 2 limiting portions, and the unlocking portion is provided with an unlocking inclined surface corresponding to the limiting portions.

22. The locking mechanism of claim 13, further comprising a powered member that moves the unlocking portion.

23. The lock mechanism of claim 22, wherein the power member drives the unlocking portion to move in a direction in which the slide extends.

24. The locking mechanism of claim 13, further comprising a reset member that acts on the unlocking portion to actuate the unlocking portion to release the action on the limiting portion.

25. The locking mechanism of claim 24, wherein the unlocking portion has a receiving groove, the reset member is disposed in the receiving groove, the reset member acts on a side wall of the receiving groove, and the reset member drives the unlocking portion to move toward the opening.

26. The locking mechanism of claim 25, wherein a protrusion is disposed on a sidewall of the receiving groove, and the protrusion is configured to fit over the reset member;

27. The lock mechanism of claim 25, wherein a bottom of the unlocking portion abuts a top surface of the lock housing;

28. The lock mechanism of claim 1, wherein the plurality of limiting portions are sequentially spaced along the direction in which the slide extends.

29. The locking mechanism of claim 1, wherein the cross section of the slideway is "U" shaped, and the mouth of the "U" is towards the battery box;

30. A cradle assembly for mounting a battery box, the cradle assembly comprising a cradle body and a locking mechanism as claimed in any one of claims 1 to 29, the locking mechanism being provided on a side of the cradle body.

31. The tray assembly of claim 30, further comprising a back panel disposed on the tray body, the back panel having an electrical connection socket for connecting with an electrical connection plug of the battery box.

32. The tray assembly of claim 30, wherein said tray assembly comprises two sets of said locking mechanisms, said two sets of said locking mechanisms being disposed oppositely on opposite sides of said tray body;

33. The tray assembly of claim 32, wherein said support member comprises a plurality of rolling members, said rolling members being spaced apart in a direction in which the battery compartment slides in.

34. The tray assembly of claim 33, wherein there is a gap between a detent on the battery box and the bottom wall of the chute when the bottom of the battery box is supported on the support member.

35. The tray assembly of claim 30, wherein a bottom of said tray body is spaced from a bottom of said battery compartment, said latch base supporting said locking member.

36. An electric vehicle comprising a battery compartment and a cradle assembly as claimed in any one of claims 30 to 35, the battery compartment being mounted in the cradle assembly.

37. The electric vehicle of claim 36 wherein said battery compartment locking surface has a locking member that cooperates with said locking mechanism to effect locking of the telescoping battery compartment on said bracket.

38. The electric vehicle of claim 37 wherein said locking member is a lock shaft.

39. The electric vehicle of claim 37, wherein the locking member is a protrusion extending outward from the locking surface, and an upper surface of the protrusion is provided with a protrusion for abutting against the limiting portion.