CN115431817A - Unlocking linkage device, battery pack assembly and electric vehicle - Google Patents

Abstract

The invention provides an unlocking linkage device, a battery pack assembly and an electric vehicle. The unlocking linkage device is used for unlocking a locking mechanism on the electric vehicle and comprises an unlocking rod, the unlocking rod is installed on a battery pack, the top end of the unlocking rod can stretch out from an outlet of the battery pack and unlock the locking mechanism on the electric vehicle, and a rolling piece is arranged on the top end of the unlocking rod. The unlocking linkage device is arranged on the battery pack, the unlocking mechanism directly acts on the unlocking linkage device to drive the battery pack to be unlocked with the locking mechanism on the electric automobile, the alignment precision is high, and the unlocking efficiency can be improved. Meanwhile, the rolling piece can improve the motion smoothness when the unlocking rod is matched with the locking mechanism, and reduce the abrasion of the unlocking rod and the locking mechanism.

Description

Unlocking linkage device, battery pack assembly and electric vehicle

Technical Field

The invention relates to an unlocking linkage device, a battery pack assembly and an electric vehicle.

Background

The battery mounting mode of the existing electric automobile is generally divided into fixed mounting and replaceable mounting, wherein the fixedly mounted battery is generally fixed on the automobile; the replaceable safety rotating battery is generally movably mounted, can be taken down at any time for replacement or charging, and is mounted on the vehicle body after replacement or charging is finished.

For a battery mounted in a replaceable manner, in the prior art, an unlocking mechanism on a battery replacement device needs to penetrate through a battery pack to unlock the battery pack and a locking mechanism on an electric automobile, so that the alignment accuracy is poor, and the unlocking efficiency is low. In addition, the locking mechanism and the unlocking mechanism have large impact in the unlocking process, abrasion is easily caused by repeated work, and the use safety of the battery pack is influenced by the damage of the locking mechanism and the unlocking mechanism.

Disclosure of Invention

The invention provides an unlocking linkage device, a battery pack assembly and an electric vehicle, and aims to solve the technical problem of how to firmly lock a battery on the vehicle, improve the alignment precision of an unlocking mechanism and a locking mechanism and reduce abrasion.

The invention solves the technical problems through the following technical scheme:

the utility model provides an unblock aggregate unit for with locking mechanism unblock on the electric vehicle, includes the unblock pole, the unblock pole is installed in the battery package, the top of unblock pole can certainly it stretches out and right to stretch out in an export of battery package locking mechanism on the electric vehicle unlocks, the unblock pole the top is provided with the rolling piece.

According to the technical scheme, the unlocking linkage device is arranged on the battery pack, the unlocking mechanism directly acts on the unlocking linkage device to drive the battery pack and the locking mechanism on the electric automobile to unlock, the alignment precision is high, and the unlocking efficiency can be improved. Meanwhile, the rolling piece can improve the motion smoothness when the unlocking rod is matched with the locking mechanism, and reduce the abrasion of the unlocking rod and the locking mechanism.

Preferably, the rolling member directly sets up at the release lever tip or the rolling member is installed through an installation department the tip of release lever, the rolling member be spacing in release lever tip or on the installation department, and for release lever or the installation department rolls.

In the technical scheme, the rolling part can be conveniently detached and replaced through the mounting part.

Preferably, a containing groove is formed in the top end of the unlocking rod or the top end of the mounting portion, and the rolling piece is contained in the containing groove and rolls in the containing groove.

In this technical scheme, the storage tank can carry on spacingly to the rolling member, and the storage tank that is located the top simultaneously can make the contact of rolling member and locking mechanism more abundant.

Preferably, the depth of the accommodating groove is greater than half of the maximum diameter of the rolling member and less than the maximum diameter of the rolling member.

In this technical scheme, thereby the degree of depth of storage tank makes the rolling member part stand out the storage tank and can remain the contact throughout with locking mechanism, and the degree of depth that the rolling member is located the storage tank simultaneously is enough to make the rolling member be difficult to deviate from the storage tank.

Preferably, the diameter of the opening of the accommodating groove is smaller than the maximum diameter of the rolling member, or a limiting member is disposed at the opening of the accommodating groove.

In the technical scheme, the rolling piece can be thoroughly prevented from being separated from the accommodating groove by the diameter of the opening of the accommodating groove or the arrangement of the limiting part. The form of the limiting part can be further convenient for disassembling the rolling part for replacement and maintenance.

Preferably, the mounting part is connected with the unlocking rod through threads or a fastener.

In this technical scheme, the installation department through threaded connection or fastener connection can more conveniently dismantle and get off to change.

Preferably, a through connecting through hole is formed in the mounting portion, the fastener penetrates through the connecting through hole and is fixedly connected with the top end of the unlocking rod, and the connecting through hole is formed in the outer peripheral side of the accommodating groove.

In the technical scheme, the mounting part can be fixed by avoiding the accommodating groove and the rolling part through the connection form of the fastening part and the connecting through hole, the fastening direction of the fastening part is crossed with the separation direction of the rolling part, the connection form is firm,

preferably, one of the lock release lever and the mounting portion is provided with an inwardly recessed recess portion, and the other is provided with an outwardly protruding projection portion, the projection portion being embedded in the recess portion.

In the technical scheme, the installation part and the unlocking rod can be conveniently positioned through the convex part and the concave part, so that the relative position of the installation part and the unlocking rod cannot deviate, and the installation part and the unlocking rod are conveniently aligned during installation.

Preferably, the concave part and the convex part are connected through a fastener.

In this technical scheme, can avoid the relative movement of depressed part and bellying through the fixed of depressed part and bellying, thoroughly fix depressed part and bellying.

Preferably, the recessed portion and the protruding portion are provided with threaded portions, and the protruding portion and the recessed portion are in threaded connection through the threaded portions.

In this technical scheme, the relative movement of depressed part and bellying can be avoided through the thread tightening of depressed part and bellying, thoroughly fixes depressed part and bellying. And do not need other fixed knot to construct, can realize installation and dismantlement through the rotation of bellying and depressed part.

Preferably, the mounting portion is further provided with a dismounting through hole and a containing groove for containing the rolling piece, and the dismounting through hole is located on the periphery of the containing groove and used for being matched with the dismounting device to dismount the mounting portion.

In the technical scheme, the dismounting device can enter the dismounting through hole to rotate the mounting part, so that the mounting part and the unlocking rod are dismounted.

Preferably, one end of the mounting portion is provided with a containing groove for containing the rolling member, the other end of the mounting portion is provided with the protruding portion, and the radial dimension of the mounting portion is larger than that of the protruding portion.

In this technical scheme, the part that radially is greater than the bellying of installation department can play limiting displacement. The accommodating groove and the protruding part can be processed together, so that the structure is simplified.

Preferably, the both ends of bellying have the spigot surface, keep away from the installation department the spigot surface be used for with the installation direction of depressed part, be close to the installation department the spigot surface is used for cooperating the top edge of depressed part.

Among this technical scheme, the spigot surface of keeping away from the installation department can guide at the in-process that gets into the depressed part, corrects the deviation when getting into the depressed part. The guide surface near the mounting portion can tolerate processing variations, and in the case of a recess with less precise top edge, the adaptation is performed by the guide surface.

Preferably, the unlocking rod is mounted on the battery pack through a mounting piece and is elastically connected with the mounting piece.

In the technical scheme, the unlocking rod in elastic connection can reduce impact, avoid greater impact on the locking mechanism during unlocking and prolong the service life.

Preferably, the unlocking linkage device comprises a first elastic part, and the first elastic part is sleeved on the unlocking rod and used for applying acting force to the unlocking rod so as to enable the unlocking rod to reset relative to the battery pack.

In this technical scheme, first elastic component be used for to the unlocking lever exerts the effort so that the unlocking lever for the battery package resets to can absorb the impact, the first elastic component that the mode of establishing simultaneously cover set up can reduce the utilization in space, make the structure compacter.

Preferably, under the initial condition, the bottom butt of unblock pole the limiting plate on the battery package, the limiting plate is installed the installed part bottom.

Among this technical scheme, carry on spacingly through the limiting plate to the unlocking lever, avoid the unlocking lever to drop.

Preferably, a guide structure is provided in the mounting member, and the unlocking rod moves along the guide structure.

In the technical scheme, the guide structure can guide the moving direction of the unlocking rod, and the unlocking rod is prevented from being offset in the moving process to cause collision with an outlet.

Preferably, the guide structure is a sleeve, and the unlocking rod penetrates through the guide structure and slides along the guide structure.

In the technical scheme, the sleeve-shaped guide structure can guide the unlocking rod to slide inside.

Preferably, the material of the guide structure is brass. The brass material has self-lubricating effect, and can be more smoothly matched with the unlocking rod in a sliding way.

Preferably, the mounting part comprises a mounting shell, a limiting structure is arranged at the top of the mounting shell, a first opening is formed in the top of the mounting shell, a second opening is formed in the limiting structure, and the diameter of the second opening is smaller than that of the first opening.

Among this technical scheme, first trompil is used for holding guide structure, and the second trompil is spacing simultaneously and is avoided guide structure to break away from the installation shell.

Preferably, two ends of the guiding structure are respectively abutted against the first elastic part and the limiting structure.

In the technical scheme, the rebound force generated by the first elastic part is balanced by the resisting force of the limiting structure, so that the guide structure is stably kept in the installation shell and cannot slide randomly in the moving process of the unlocking rod.

Preferably, the mounting housing is concentrically disposed with the guide structure.

In the technical scheme, the concentric installation shell and the guide structure are convenient to install and fix.

Preferably, the unlocking rod is provided with a limiting part at the bottom end, and two ends of the first elastic part are respectively abutted to the limiting part and the guide structure.

Among this technical scheme, restrict first elasticity portion jointly through spacing portion and guide structure, make full use of guide structure has simplified inner structure.

Preferably, the unlocking rod comprises a first segment and a second segment, the second segment is connected with the first segment, the first segment is close to one side of the outlet, the second segment is connected with the limiting part, and the first elastic part is sleeved on the second segment.

In this technical scheme, first subsection is used for stretching out the export, and the second subsection can carry on spacingly to first elastic component, guides the compression and the tensile direction of first elastic component.

Preferably, the second section has a radial dimension greater than the first section, the first section having a radial dimension less than the radial dimension of the outlet and adapted to project from the outlet, the second section having a radial dimension greater than the radial dimension of the outlet.

In the technical scheme, the size of the first segment is matched with the outlet of the battery pack and extends out, the size of the second segment ensures that the whole unlocking rod can be prevented from being ejected out of the outlet, the upward movement limiting effect on the unlocking rod is achieved, and the overall strength of the unlocking rod is improved.

Preferably, the guide structure has a guide space therein and is form-fitted with the second segment, the second segment sliding within the guide space.

In this technical scheme, the guide space of adaptation shape can guide the second section to produce and slide.

Preferably, the mounting member includes a mounting seat coupled to the mounting housing, and the mounting seat has a fixing surface for coupling to the battery pack.

Among this technical scheme, the installation shell can wholly install through the mount pad, and the mount pad does not influence the installation shell with being connected of battery package yet.

The battery pack assembly comprises a battery pack and an unlocking linkage device, wherein the unlocking linkage device penetrates through the battery pack along the vertical direction.

The electric vehicle comprises a locking mechanism and a battery pack assembly, wherein the locking mechanism is arranged on the electric vehicle and used for being locked with a locking piece on a battery pack in a matched mode, and an unlocking linkage device is used for enabling the locking mechanism to be unlocked with the locking piece.

Preferably, the locking mechanism comprises a lock connecting rod and a plurality of lock bases, the lock bases are provided with locking grooves, at least part of the lock bases are provided with lock tongues, the lock tongues are movably mounted in the locking grooves and can prevent the lock shaft from separating from the locking grooves, the lock connecting rod is movably connected with the lock bases through the lock tongues, and the bottom of the lock connecting rod is provided with an unlocking surface extending along the length direction of the lock connecting rod; the unlocking rod abuts against the unlocking surface under the action of external force to jack up the lock connecting rod and keep a jack-up state, and the top end of the unlocking rod horizontally slides along the unlocking surface in the jack-up process.

In the technical scheme, the unlocking surface extends along the length direction of the lock connecting rod, so that the unlocking rod can be propped against the unlocking surface in the moving process relative to the lock connecting rod, and the unlocking stability is improved.

Preferably, a buffering structure is arranged at the unlocking face, and the unlocking rod acts on the buffering structure.

In the technical scheme, the buffer structure is arranged at the unlocking surface, the unlocking rod directly applies force to the buffer structure, the impact of the unlocking rod on the lock connecting rod is reduced through the buffer structure, the service life of the lock connecting rod is prolonged, and the abrasion caused by collision and moving friction of the unlocking rod and the lock connecting rod is reduced. The positive progress effects of the invention are as follows: the unlocking linkage device is arranged on the battery pack, the unlocking mechanism directly acts on the unlocking linkage device to drive the battery pack to be unlocked with the locking mechanism on the electric automobile, the alignment precision is high, and the unlocking efficiency can be improved. Meanwhile, the rolling piece can improve the motion smoothness when the unlocking rod is matched with the locking mechanism, and reduce the abrasion of the unlocking rod and the locking mechanism.

Drawings

Fig. 1 is a schematic view of an electric vehicle according to a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram of a battery pack assembly, a quick-change holder and a locking mechanism according to a preferred embodiment of the invention.

Fig. 3 is a schematic perspective view of a battery pack assembly according to a preferred embodiment of the invention.

Fig. 4 is a partially enlarged structural view of a battery pack assembly according to a preferred embodiment of the invention.

FIG. 5 is a schematic view of the extended state of the unlock linkage in accordance with the preferred embodiment of the present invention.

FIG. 6 is a schematic view of the unlocking linkage in a retracted state according to the preferred embodiment of the present invention.

Fig. 7 is a schematic diagram illustrating an internal structure of a battery pack according to a preferred embodiment of the invention.

Fig. 8 is a schematic perspective view of an unlocking linkage device according to a preferred embodiment of the invention.

FIG. 9 is an exploded view of the unlock linkage in accordance with the preferred embodiment of the present invention.

FIG. 10 is a cross-sectional view of the unlock linkage in accordance with the preferred embodiment of the present invention.

Fig. 11 is a perspective view of the lock release lever according to the preferred embodiment of the present invention.

FIG. 12 is a schematic structural diagram of a mounting portion according to a preferred embodiment of the invention.

Fig. 13 is a schematic top view of an unlocking lever according to another embodiment of the present invention.

FIG. 14 is a schematic view of the unlocked and locked states of the locking mechanism according to the preferred embodiment of the present invention.

Fig. 15 is a schematic view illustrating an unlocking process of the locking mechanism according to the preferred embodiment of the invention.

Detailed Description

The present invention will be more fully described in the following detailed description of the preferred embodiments thereof, taken together with the accompanying drawings.

As shown in fig. 1 to 13, the present embodiment discloses an electric vehicle including commercial vehicles such as heavy trucks and light trucks. The electric vehicle comprises a locking mechanism 300, wherein the locking mechanism 300 is mounted on a girder of the electric vehicle through a quick-change bracket 500, or the locking mechanism is directly mounted on the girder of the electric vehicle. As shown in fig. 1 to 4, an electric vehicle according to the present embodiment may include a quick-change bracket 500, a locking mechanism 300, and a battery pack assembly. Wherein, the battery pack assembly may include a battery pack 400 and an unlocking linkage 100, the unlocking linkage 100 penetrating the battery pack 400 from bottom to top along a vertical direction. The locking mechanism 300 is disposed on the quick-change bracket 500, the locking mechanism 300 is configured to cooperate with the lock member 210 on the battery pack 400 for locking, and the unlocking linkage 100 is configured to unlock the locking mechanism 300 and the lock member 210. In the present embodiment, the locking member 210 is a lock shaft.

As shown in fig. 2 to 5, the present embodiment discloses an unlocking linkage 100 for unlocking a locking mechanism 300 on an electric vehicle, comprising an unlocking lever 110, wherein the unlocking lever 110 is mounted on a battery pack 400, the top end of the unlocking lever 110 can extend out from an outlet 220 of the battery pack 400 and unlock the locking mechanism 300 on the electric vehicle, and the top end of the unlocking lever 110 is provided with a rolling member 130. The unlocking linkage device 100 is arranged on the battery pack 400, the external unlocking mechanism directly acts on the unlocking linkage device 100 to drive the battery pack 400 to unlock the locking mechanism 300 on the electric automobile, the alignment precision is high, and the unlocking efficiency can be improved. Meanwhile, the rolling member 130 may improve the smoothness of movement when the lock release lever 110 is engaged with the locking mechanism 300, and reduce the wear of the lock release lever 110 and the locking mechanism 300. In an initial state, the top end of the unlocking lever 110 extends out of the outlet 220 of the battery pack 400, so that the distance between the unlocking lever 110 and the locking mechanism 300 can be shortened, the unlocking stroke can be reduced, the unlocking efficiency can be improved, and the unlocking reliability can also be improved.

As shown in fig. 5 to 10, the rolling member 130 is mounted on the end of the lock release lever 110 through a mounting portion 120, and the rolling member 130 is restrained on the mounting portion 120 and rolls with respect to the mounting portion 120. The rolling members 130 may be easily removed and replaced by the mounting portion 120. In the embodiment, the installation manner of the installation portion 120 is shown, and actually, the rolling member 130 may also be directly installed at the end portion of the lock release lever 110, or the rolling member 130 may be limited and disposed on the lock release lever 110 by using other known manners.

As shown in fig. 5 to 12, the top end of the mounting portion 120 is provided with a receiving groove 121, and the rolling member 130 is received in the receiving groove 121 and rolls in the receiving groove 121. As shown in fig. 12, the receiving groove 121 of the present embodiment is disposed at the upper end of the mounting portion 120, and in other embodiments, the receiving groove 121 may be located on the unlocking lever 110 in the same manner. The accommodating groove 121 can limit the rolling member 130, and the accommodating groove 121 at the top end can make the rolling member 130 and the locking mechanism 300 contact more sufficiently.

As shown in fig. 12, the depth of the accommodating groove 121 is greater than half of the maximum diameter of the rolling member 130 and less than the maximum diameter of the rolling member 130. The depth of the accommodating groove 121 enables the rolling member 130 to be partially higher than the accommodating groove 121 so as to be always in contact with the locking mechanism 300, and meanwhile, the depth of the rolling member 130 in the accommodating groove 121 is enough to enable the rolling member 130 not to easily fall out of the accommodating groove 121. In other embodiments, the depth of the receiving groove 121 may be less than half of the maximum diameter of the rolling member 130, and the rolling member 130 may be limited by other auxiliary limiting structures, such as a cover covering the mounting portion 120 and the rolling member 130.

As shown in fig. 12, the opening diameter of the accommodating groove 121 is smaller than the maximum diameter of the rolling member 130, and the rolling member 130 can be completely prevented from falling out of the accommodating groove 121 by the opening diameter of the accommodating groove 121. In other embodiments, a limiting member is disposed at an opening of the accommodating groove 121 to limit the rolling member 130 in the accommodating groove 121, and the rolling member 130 can be further conveniently detached to be replaced and maintained in a limiting member manner.

As shown in fig. 5 to 7, the release lever 110 is mounted to the battery pack 400 by the mounting member 140 and is elastically coupled to the mounting member 140. The unlocking rod 110 elastically connected can reduce impact, avoid great impact on the locking mechanism 300 during unlocking, and prolong the service life. The elastic connection can be realized by a known structural member with elasticity or various known structures such as a cylinder which contracts and enlarges by a medium such as liquid or gas. The resilient connection may reduce shock, but in other embodiments, the release lever 110 and the mounting member 140 may be coupled in a non-resilient manner, such as a rigid connection.

As shown in fig. 5-7, in a preferred embodiment, the unlocking linkage 100 includes a first elastic part 160, and the first elastic part 160 is sleeved on the unlocking lever 110 for applying a downward force to the unlocking lever 110 to reset the unlocking lever 110 relative to the battery pack 400. In addition, the first elastic portion 160 can absorb the impact, so as to avoid the greater impact on the locking mechanism 300 during unlocking, thereby prolonging the service life. Meanwhile, the first elastic part 160 arranged in a sleeved manner can reduce the utilization of space, so that the structure is more compact, the unlocking rod 110 can guide and limit the first elastic part 160, and the first elastic part 160 is prevented from being separated. The first elastic portion 160 is preferably a spring in the present embodiment, and may be various other known elastic members such as a torsion spring and a coil spring.

As shown in fig. 5 to 7, and particularly in fig. 6, in the initial state, the bottom end of the lock release lever 110 abuts against the stopper plate 150 on the battery pack 400, and the stopper plate 150 is mounted at the bottom of the mounting member 140. The unlocking lever 110 is limited by the limiting plate 150, and the unlocking lever 110 is prevented from falling. In other embodiments, other limiting structures may be used to limit the downward movement of the release lever 110. In the present embodiment, it is further preferable that the stopper plate 150 is provided with a stopper through hole 151. Edges of both sides of the limit through-hole 151 are smaller than the bottom of the release lever 110, thereby catching the release lever 110 so that it does not fall down. While the limit through-hole 151 may allow the unlocking mechanism to pass therethrough to lift the unlocking lever 110.

As shown in fig. 9 and 10, in a preferred embodiment, a guide 170 is provided in the mounting member 140, and the release lever 110 moves along the guide 170. The guide 170 may guide the moving direction of the releasing lever 110 to prevent the releasing lever 110 from being shifted during the movement to collide with the outlet 220. In other embodiments, the guide structure 170 may not be provided, as it may be ensured that the alignment of the lock release lever 110 is relatively accurate.

As shown in fig. 9 and 10, the guiding structure 170 is a sleeve, and the unlocking lever 110 is inserted through the guiding structure 170 and slides along the guiding structure 170. The inside of the sleeve-shaped guide 170 may guide the sliding of the release lever 110. In other embodiments, the guiding structure 170 is not limited to the form of a sleeve, and may be other known guiding structures such as a sliding rail, a sliding groove, and the like.

In a preferred embodiment, as shown in fig. 9 and 10, the guide structure 170 is brass. The brass material has a self-lubricating effect, and can be more smoothly matched with the unlocking rod 110 in a sliding manner. In other embodiments, the guide structure 170 may be made of other self-lubricating materials, such as graphite, and may be lubricated by a known lubricating method such as a lubricating oil applied to the inside of the guide structure 170. Of course, the unlocking lever 110 itself may also be made of a self-lubricating material.

As shown in fig. 9 and 10, the guide structure 170 has a guide space inside, and the lock release lever 110 slides in the guide space in conformity with the shape of the lock release lever 110. The guide space of the fitting shape may guide the unlocking lever 110 to slide.

As shown in fig. 8 and 9, in a preferred embodiment, the mounting member 140 includes a mounting housing 141, a limiting structure 143 is disposed on the top of the mounting housing 141, a first opening 145 is disposed on the top of the mounting housing 141, and a second opening 144 is disposed on the limiting structure 143, wherein the diameter of the second opening 144 is smaller than that of the first opening 145. As shown in fig. 10, the first opening 145 is adapted to receive the guide structure 170, while the second opening 144 is defined to prevent the guide structure 170 from being removed from the mounting housing. In this embodiment, the limiting structure 143 is preferably a plate-shaped structure with holes, and in other embodiments, may be another structure capable of blocking the guide structure 170 from being separated upward.

As shown in fig. 8-10, two ends of the guiding structure 170 are respectively abutted against the first elastic part 160 and the limiting structure 143. The repulsive force generated by the first elastic portion 160 is balanced by the resisting force of the position limiting structure 143, so that the guide structure 170 is stably maintained in the mounting housing 141 without generating random sliding during the movement of the unlocking lever 110.

In a preferred embodiment, as shown in fig. 8 and 10, the mounting housing 141 is concentrically disposed with the guide structure 170. The concentric arrangement of the mounting housing 141 and the guide structure 170 facilitates mounting and securing.

As shown in fig. 7 to 9, the mounting member 140 further includes a mounting seat 142, the mounting seat 142 is connected to the mounting housing 141 and surrounds one side of the mounting housing 141, and a fixing surface for connecting with the battery pack 400 is formed on a side wall of the mounting seat 142. The mounting case 141 may be integrally mounted through the mounting seat 142, and the connection of the mounting seat 142 to the battery pack 400 does not affect the mounting case 141.

As shown in fig. 5-6 and 10-11, the bottom end of the lock releasing rod 110 is provided with a limiting portion 113, and two ends of the first elastic portion 160 respectively abut against the limiting portion 113 and the guiding structure 170. The first elastic part 160 is limited by the limiting part 113 and the guide structure 170, the guide structure 170 is fully utilized, and the internal structure is simplified. The stopper portion 113 in this embodiment is preferably larger in radial dimension than the other portion of the lock release lever 110, thereby stopping the first elastic portion 160. In other embodiments, the position-limiting part may be a bolt or other known position-limiting mechanism.

As shown in fig. 9 to 11, in a preferred embodiment, the unlocking rod 110 includes a first segment 111 and a second segment 112, the second segment 112 is connected to the first segment 111, the first segment 111 is close to the outlet 220, the second segment 112 is connected to the limiting portion 113, the first elastic portion 160 is sleeved on the second segment 112, and the second segment 112 slides in the guiding structure 170. The first segment 111 is used to extend out of the outlet 220, and the second segment 112 can limit the first elastic part 160 and guide the compression and stretching directions of the first elastic part 160. In other embodiments, the first elastic portion 160 may not be limited by the second segment 112, for example, a latch or other protruding structure may be used to limit the first elastic portion 160.

In a further preferred embodiment, as shown in fig. 9-11, second section 112 has a radial dimension greater than first section 111, first section 111 has a radial dimension less than that of outlet 220 and is adapted to extend from outlet 220, and second section 112 has a radial dimension greater than that of outlet 220. The first segment 111 is sized to fit and protrude the outlet 220 of the battery pack 400, and the second segment 112 is sized to prevent the entire lock release lever 110 from being pushed out of the outlet 220, to limit the upward movement of the lock release lever 110, and to improve the overall strength of the lock release lever 110. In other embodiments, the upward stop may not be provided by the second section 112, such as by a latch or other protruding structure that stops the second section 112 from exiting the outlet 220 upward.

The mounting portion 120 and the release lever 110 are coupled by a screw or a fastener. The mounting portion 120, which may be attached by a threaded connection or a fastener, may be more easily removed for replacement. In this embodiment, the mounting portion 120 shown in fig. 12 is connected to the release lever 110 by its own screw. In another embodiment, the mounting portion 120 shown in FIG. 13 is secured to the release lever 110 by a fastener 180.

As shown in fig. 13, the mounting portion 120 is provided with a through connection through hole, the fastening member 180 passes through the connection through hole and is fixedly connected to the top end of the lock release lever 110, and the connection through hole is disposed on the outer circumferential side of the accommodation groove 121. The mounting portion 120 can be fixed by the fastening member 180 and the connecting through hole, avoiding the receiving groove 121 and the rolling member 130, and the fastening direction of the fastening member crosses the releasing direction of the rolling member 130, so that the connecting manner is firm.

As shown in fig. 12 and 13, in a preferred embodiment, one of the lock release lever 110 and the mounting portion 120 is provided with a recessed portion 114 recessed inward, and the other is provided with a protruding portion 122 protruding outward, the protruding portion 122 being embedded in the recessed portion 114. The positioning of the mounting portion 120 and the unlocking lever 110 is facilitated by the protrusion 122 and the recess 114, ensuring that the relative positions of the mounting portion 120 and the unlocking lever 110 are not shifted, and facilitating the alignment of the mounting portion 120 and the unlocking lever 110 when they are mounted. In the present embodiment, the recess 114 is provided on the lock release lever 110, and the protrusion 122 is provided on the mounting portion 120, but the positions may be interchanged in other embodiments.

The protrusion 122 and the recess 114 may further be secured in combination with different mounting means. In the preferred embodiment shown in fig. 12, the recessed portion 114 and the protruding portion 122 are provided with threaded portions, and the protruding portion 122 and the recessed portion 114 are screwed by the threaded portions on the outer periphery of the protruding portion and the inner periphery of the recessed portion 114. The relative movement of the recess 114 and the protrusion 122 can be avoided by the screw-fastening of the recess 114 and the protrusion 122, and the recess 114 and the protrusion 122 can be completely fastened. And the installation and the disassembly can be realized by the rotation of the convex part 122 and the concave part 114 without other fixing structures.

In a preferred embodiment shown in fig. 13, the concave portion 114 and the convex portion 122 are connected by a fastener 180. The relative movement of the concave portion 114 and the convex portion 122 can be avoided by the fixing of the concave portion 114 and the convex portion 122, and the concave portion 114 and the convex portion 122 are completely fixed.

In other embodiments, the protrusion 122 and the recess 114 may be connected by other fixing methods. Such as by gluing the recesses 114 and the protrusions 122, such as by welding the recesses 114 and the protrusions 122 together after being inserted together.

As shown in fig. 12, in a preferred embodiment, one end of the mounting portion 120 is provided with a receiving groove 121 for receiving the rolling member 130, and the other end is provided with a protruding portion 122, and the radial dimension of the mounting portion 120 is larger than that of the protruding portion 122. The portion of the mounting portion 120 radially larger than the boss 122 may serve as a limit. The receiving groove 121 and the protrusion 122 may be formed together, simplifying the structure.

In a preferred embodiment, as shown in fig. 12, the two ends of the protrusion 122 have guide surfaces 124, the guide surface 124 distal from the mounting portion 120 is used for mounting guidance with the recess 114, and the guide surface proximal to the mounting portion 120 is used for engaging the top edge of the recess 114. The guide surface 124 remote from the mounting portion 120 may guide during entry into the recess 114 to correct for deviations in entry into the recess 114. The guide surface 124 near the mounting portion 120 can tolerate machining variations, and is adapted by the guide surface 124 in the case where the accuracy of the tip edge of the recessed portion 114 is not high.

As shown in fig. 12, in the preferred embodiment, the mounting portion 120 is further provided with a removal through hole 123, and the removal through hole 123 is located at the periphery of the receiving groove 121 and is used for cooperating with the removal device to remove the mounting portion 120. Therefore, the detaching device can enter the detaching through hole 123 to rotate the mounting part 120, so that the mounting part 120 and the unlocking rod 110 can be detached.

As shown in fig. 14 and 15, the upper diagrams of fig. 14 and 15 are both diagrams in the locked state, and the lower diagrams of fig. 14 and 15 are both diagrams in the unlocked state. The locking mechanism 300 of the battery pack assembly of this embodiment includes a lock link 320 and a plurality of lock bases 310, lock base 310 has been seted up and has been locked groove 340, at least part lock base 310 is equipped with the lock tongue 330, lock tongue 330 movable mounting can prevent locking piece 210 to break away from out and lock groove 340 in locking groove 340, lock link 320 passes through lock tongue 330 and lock base 310 swing joint, the bottom of lock link 320 has the unblock face that extends along lock link 320 length direction, unblock pole 110 supports under the effect of external force and supports in unblock face and jack-up lock link 320, thereby drive lock tongue 330 and open lock groove 340, in the process of jack-up, the top of unblock pole 110 supports along unblock face horizontal slip and supports all the way and act on the unblock face. Specifically, both ends of the latch tongue 330 are hinged to the latch base 310 and the latch link 320, and when the latch link 320 is lifted, the latch tongue 330 rotates to open the space of the latching groove, so that the latching member 210 can be horizontally moved out to the right. At the same time, the lock base 310 remains stationary so that the lock link does not translate linearly but moves upwardly as well as horizontally to the right in fig. 14 and 15. In this process, the release lever 110 moves only upward, and thus the position in the horizontal direction with respect to the lock link 320 is also changed.

In the process that the locking piece 210 horizontally moves rightwards in the locking groove 340, the unlocking rod 110 always abuts against and acts on an unlocking surface, so that the locking tongue 330 is kept in an open state, the locking piece 210 can be smoothly moved out of the locking groove 340, and the unlocking reliability is improved.

As shown in fig. 15, the lock link 320 includes an unlocking block 321, the unlocking block 321 extends toward the lock base 310, the bottom of the unlocking block 321 has a horizontally extending unlocking surface, and the unlocking lever 110 acts on the unlocking surface of the unlocking block 321. The horizontally extending unlocking surface can enable the unlocking rod 110 to abut against the unlocking block 321 in the moving process relative to the lock link 320, and the unlocking rod cannot be clamped at a certain position, so that the unlocking stability is improved. The unlocking surface is a horizontal surface, so that the fault tolerance is higher, and the unlocking rod 110 can be always kept in the unlocking surface under the condition of alignment deviation or torsion angle.

In other embodiments, the unlocking surface may be further provided in a shape of a concave square, a concave arc, a concave triangle, or a concave prism, and extends along the length of the lock link 320. The unlocking surface is a concave square shape, which can limit the unlocking lever 110, so that the unlocking lever 110 cannot be separated from the unlocking surface in the unlocking process. The unlocking surface is a concave arc shape, a concave triangle shape or a concave prism shape, which can form an optimal unlocking line with the unlocking lever 110 and is suitable for fault tolerance, so that the unlocking lever 110 moves along the length direction of the lock link 320 in the unlocking surface and the stay of the unlocking device is convenient.

In a further preferred embodiment, the unlocking surface of the unlocking block 321 is provided with a buffer structure, for example, an elastic member such as a rubber pad, and the unlocking lever 110 acts on the buffer structure. The buffering structure is arranged at the unlocking surface, the unlocking rod 110 directly acts on the buffering structure, the impact of the unlocking rod 110 on the lock connecting rod 320 is reduced through the buffering structure, the service life of the lock connecting rod 320 is prolonged, and the abrasion caused by collision and moving friction between the unlocking rod 110 and the lock connecting rod 320 is reduced.

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

Claims (20)

1. The utility model provides an unblock aggregate unit for with locking mechanism unblock on the electric vehicle, its characterized in that, including the unblock pole, the unblock pole is installed in the battery package, the top of unblock pole can certainly an export of battery package stretches out and right locking mechanism on the electric vehicle unlocks, the unblock pole the top is provided with the rolling piece.

2. The unlocking linkage as recited in claim 1, wherein the rolling member is directly disposed at an end of the unlocking lever or the rolling member is mounted at an end of the unlocking lever through a mounting portion, the rolling member is limited at the end of the unlocking lever or the mounting portion and rolls relative to the unlocking lever or the mounting portion.

3. The unlock linkage of claim 2 wherein a receiving slot is provided in a top end of the unlock lever or a top end of the mounting portion, the roller being received in the receiving slot and rolling within the receiving slot.

4. The unlocking linkage of claim 3, wherein the depth of the receiving slot is greater than one-half of the maximum diameter of the roller and less than the maximum diameter of the roller.

5. The unlocking linkage as recited in claim 3, wherein the diameter of the opening of the receiving slot is smaller than the maximum diameter of the rolling member, or a limit stop is provided at the opening of the receiving slot.

6. The unlock linkage of claim 3, wherein the mounting portion is threadably connected to the unlock lever or is connected by a fastener.

7. The unlocking linkage device according to claim 6, wherein the mounting portion is provided with a through connecting through hole, the fastening member passes through the connecting through hole and is fixedly connected with the top end of the unlocking lever, and the connecting through hole is arranged on the outer peripheral side of the accommodating groove.

8. The unlocking linkage as recited in claim 6, wherein one of the unlocking lever and the mounting portion is provided with an inwardly recessed portion, and the other is provided with an outwardly protruding portion, the protruding portion is embedded in the recessed portion, and the recessed portion is connected with the protruding portion through a fastener, or the recessed portion and the protruding portion are provided with a threaded portion, and the protruding portion and the recessed portion are in threaded connection through the threaded portion.

9. The unlocking linkage as recited in claim 8, wherein the mounting portion is further provided with a removal through hole and a receiving groove for receiving the rolling member, the removal through hole being located at an outer periphery of the receiving groove and adapted to cooperate with the removal device to remove the mounting portion.

10. The unlock linkage of claim 1, wherein the unlock linkage includes a first resilient portion sleeved over the unlock lever for applying a force to the unlock lever to reset the unlock lever relative to the battery pack.

11. The unlock linkage of claim 10, wherein the unlock rod is mounted to the battery pack by a mounting member, and in an initial state, a bottom end of the unlock rod abuts a limit plate on the battery pack, the limit plate being mounted at a bottom of the mounting member.

12. The unlock linkage of claim 11, wherein a guide structure is provided within the mounting member, the unlock rod being disposed through the guide structure and the mounting member and sliding along the guide structure.

13. The unlocking linkage as recited in claim 12, wherein the top of the mounting member is provided with a limiting structure, the top of the mounting member is provided with a first opening, the limiting structure is provided with a second opening, the diameter of the second opening is smaller than that of the first opening, and two ends of the guide structure are respectively abutted against the first elastic portion and the limiting structure.

14. The unlock linkage of claim 13 wherein a limit stop is provided at a bottom end of the unlock rod, and two ends of the first resilient portion abut against the limit stop and the guide structure, respectively.

15. The unlocking linkage of claim 14, wherein the unlocking lever includes a first segment and a second segment, the second segment is connected to the first segment, the first segment is adjacent to the outlet side, the second segment is connected to the limiting portion, and the first elastic portion is sleeved on the second segment.

16. The unlocking linkage of claim 15, wherein the second segment has a radial dimension greater than the first segment, the first segment having a radial dimension less than the radial dimension of the outlet and adapted to extend from the outlet, the second segment having a radial dimension greater than the radial dimension of the outlet.

17. A battery pack assembly comprising a battery pack and the unlocking linkage of any of claims 1-16, wherein the unlocking linkage extends vertically through the battery pack.

18. An electric vehicle comprising a battery pack assembly as recited in claim 17 and a locking mechanism disposed on the electric vehicle, the locking mechanism configured to cooperate with a locking member on the battery pack to lock the battery pack, the release linkage configured to unlock the locking mechanism and the locking member.

19. The electric vehicle of claim 18, wherein the latch mechanism comprises a latch link and a plurality of latch bases, the latch bases are provided with latch grooves, at least a portion of the latch bases are provided with latch tongues, the latch tongues are movably mounted in the latch grooves and can prevent the latch members from being separated from the latch grooves, the latch link is movably connected with the latch bases through the latch tongues, and the bottom of the latch link is provided with an unlocking surface extending along the length direction of the latch link; the unlocking rod abuts against the unlocking surface under the action of external force to jack up the lock connecting rod and keep a jack-up state, and the top end of the unlocking rod horizontally slides along the unlocking surface in the jack-up process.

20. The electric vehicle of claim 19, characterized in that a buffer structure is provided at the unlocking face, and the unlocking lever acts on the buffer structure.

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