CN110816241A

CN110816241A - Positioning assembly, battery pack, battery replacing platform, quick-change bracket assembly and electric vehicle

Info

Publication number: CN110816241A
Application number: CN201810813426.7A
Authority: CN
Inventors: 黄春华
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2018-07-23
Filing date: 2018-07-23
Publication date: 2020-02-21

Abstract

The invention discloses a positioning component, a battery pack, a battery replacement platform, a quick-change bracket assembly and an electric vehicle. The positioning assembly is arranged between the main body component and the fixing component and comprises a positioning part and a rigid limiting part; when the rigid limiting part is contacted with the positioning part, the positioning part is rigidly connected with the main body component through the rigid limiting part; when the rigid limiting part is contacted with the positioning part and moves along the first limiting direction, the rigid limiting part drives the positioning part to move away from the main body component; the positioning component is movable proximate to the body member when the rigid limiting component is moved in the second limiting direction. The battery pack assembly, the battery replacing platform assembly, the quick-change bracket assembly and the electric vehicle comprise positioning components. Above, can reach the zero clearance state for even under the non-steady state of traveling, the battery package assembly can not rock, and at least speaking, rocking of battery package assembly has weakened for prior art, has improved security performance and life.

Description

Positioning assembly, battery pack, battery replacing platform, quick-change bracket assembly and electric vehicle

Technical Field

The invention relates to the technical field of new energy, in particular to a positioning component, a battery pack assembly, a battery replacement platform assembly, a quick-change bracket assembly and an electric vehicle.

Background

An existing electric vehicle generally includes a battery pack assembly and a battery holder (generally, the battery holder is a part of a quick-change bracket), wherein the battery pack assembly includes a battery pack and a positioning component. The battery package has the location side (usually for extending along the length direction of battery package and with the width direction vertically side of battery package), the location side sets up with the seat locating surface of battery fixing base relatively, battery fixing base is used for installing the battery package assembly, positioning assembly includes locating component, locating component movably connects in the battery package, locating component can move along opposite first locating direction and second locating direction for the location side, when locating component moves along first locating direction, locating component keeps away from the motion of location side, when locating component moves along second locating direction, locating component is close to the motion of location side, locating component is used for leaning on the seat locating surface. An elastic component is fixedly arranged between the positioning component and the positioning side surface, and the elastic force of the elastic component needs to be overcome when the positioning component moves along the second positioning direction, so that the elastic component can enable the positioning component to lean against the positioning surface of the seat, and the positioning effect is realized. Also, a battery changing platform is typically used to install and remove the battery pack assembly.

However, the following drawbacks exist with this form of construction: because the elastic component is adopted, the positioning component has a moving allowance in the width direction of the electric vehicle, when the electric vehicle runs unstably, the positioning component comprises: when the turning angle is too large or frequent, the battery pack may displace and even collide with the battery fixing seat, thereby causing abnormal sound or abrasion, and reducing the service life and safety performance of the battery pack. Meanwhile, in the process of installing and disassembling the battery, the battery pack assembly moves up and down relative to the battery fixing seat, if the elastic part is directly replaced by the rigid limiting part, the positioning part cannot retract along the width direction, the pressure between the positioning part and the battery fixing seat is too large, the friction force is too large, and even the battery pack assembly cannot be installed and disassembled; therefore, it is not feasible to directly replace the elastic member with the rigid stopper member.

Disclosure of Invention

The invention aims to overcome the defect that potential safety hazards are caused by displacement of a battery pack when an electric vehicle runs unstably in the prior art, and provides a positioning component, the battery pack, a battery replacement platform, a quick-change bracket assembly and the electric vehicle.

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

a locating assembly for locating between a main body member and a fixing member, the locating assembly including a locating component for being movably connected to the main body member, the locating component being capable of moving relative to the main body member in first and second opposite locating directions, the first locating direction being away from the main body member and the second locating direction being towards the main body member, the locating component being for abutting against the fixing member, the locating assembly being characterized in that:

the positioning assembly further comprises a rigid limiting component, the rigid limiting component is used for being movably connected to the main body component, and the rigid limiting component is used for being in contact with the positioning component to limit the positioning component to move close to the main body component; when the rigid limiting part is contacted with the positioning part, the positioning part is rigidly connected with the main body component through the rigid limiting part; the rigid stop component is movable relative to the body member in first and second opposite stop directions; when the rigid limiting part is in contact with the positioning part and moves along the first limiting direction, the rigid limiting part drives the positioning part to move away from the main body component; the positioning component is movable proximate to the body member when the rigid limiting component is moved in the second limiting direction.

A positioning assembly comprises a positioning shell and a positioning component, wherein the positioning component is slidably arranged on the positioning shell and can at least partially extend out or retract into the positioning shell along a positioning direction, the positioning component is used for abutting against a fixed component, and the positioning assembly is characterized by further comprising:

the rigid limiting component is arranged in the positioning shell in a sliding mode along a limiting direction, the positioning component is provided with a first contact part, the rigid limiting component is provided with a second contact part, at least one of the first contact part and the second contact part is a limiting sliding surface, the first contact part and the second contact part can be in contact and can relatively slide, and the extending direction of the limiting sliding surface, the positioning direction and the limiting direction are not parallel to each other; and

a restoring member that is connected to the rigid stopper member and applies an elastic force in the stopper direction to the rigid stopper member; along the force application direction of the reset component, the limiting slide surface is gradually far away from the fixing component.

Preferably, the limiting sliding surface is a plane.

By adopting the arrangement, the plane can enable the relative sliding between the positioning component and the rigid limiting component to be more stable relative to the curved surface.

Preferably, the first contact part and the second contact part are both the limiting sliding surfaces.

By adopting the arrangement, the positioning component and the rigid limiting component are in surface contact, and the positioning device is more reliable compared with the technical scheme of line contact or point contact.

Preferably, the positioning direction is perpendicular to the limiting direction, and an included angle between the limiting direction and the extending direction of the limiting sliding surface is less than 30 °.

Adopt above-mentioned setting, can realize rigidity stop part's auto-lock, promptly: even if the positioning member moves in the positioning direction and acts on the rigid stopper member, the rigid stopper member hardly moves in the stopper direction.

Preferably, the positioning housing is provided with an accommodating cavity, the accommodating cavity is provided with an opening, the positioning component is provided with a positioning body and a positioning edge, the positioning edge is connected to the periphery of the positioning body, the positioning edge is located in the accommodating cavity, the positioning body extends out of the positioning housing through the opening, and the positioning edge is blocked by the periphery of the opening.

With the arrangement, the periphery of the opening blocks the positioning component so that the positioning component can not leave the positioning shell all the time.

Preferably, the positioning body is slidably disposed on the opening and/or the positioning edge is slidably disposed on a wall surface of the accommodating cavity.

Adopt above-mentioned setting, the opening leads to locating part and/or holds the chamber and lead to the location border, and the location body can expose the opening in order to support by fixed component, battery fixing base promptly.

Preferably, the rigid limiting part comprises a limiting head part and a limiting rod part, the second contact part is located at the limiting head part, the limiting head part is located in the accommodating cavity, a limiting hole is formed in a wall part of the positioning shell for limiting the accommodating cavity, the axis of the limiting hole extends along the limiting direction, the limiting rod part is slidably arranged in the limiting hole, and the limiting head part is blocked by the circumferential edge of the limiting hole.

By adopting the arrangement, the limiting head acts on the positioning part to drive the positioning part to move, and the periphery of the limiting hole blocks the rigid limiting part so that the rigid limiting part can not leave the positioning shell all the time. And the limiting hole plays a guiding role in the limiting rod part.

Preferably, under the action of the resetting component, the limiting rod part can be partially positioned outside the positioning shell.

By adopting the arrangement, the movement of the rigid limiting component can be realized by utilizing the reset component, and one part of the limiting rod part exposed out of the positioning shell can be conveniently operated. When the battery pack assembly is installed, external force can be adopted to overcome the force of the reset component, so that the rigid limiting component can not enable the positioning component to be strongly abutted against the positioning surface of the seat; after the battery pack assembly is installed, the reset component can be released, so that the rigid limiting component drives the positioning component to move and strongly abuts against the positioning surface of the seat.

Preferably, the positioning assembly comprises two rigid limiting parts, and the resetting part is connected between the two rigid limiting parts and applies opposite elastic forces to the two rigid limiting parts.

By adopting the arrangement, the two rigid limiting components can move in opposite directions or move back to back, so that the two rigid limiting components can be controlled by the same reset component, and the two rigid limiting components can be controlled more stably by the movement mode of the two rigid limiting components.

Preferably, the return member is a compression spring.

By adopting the arrangement, the device has the advantages of simple structure, easy assembly and low cost.

Preferably, the rigid limiting component is provided with a limiting groove, and one end of the resetting component is positioned in the limiting groove; or the rigid limiting component is provided with a limiting bulge, and the resetting component is sleeved on the limiting bulge.

By adopting the arrangement, the connection between the rigid limiting component and the reset component can be conveniently and reliably realized.

Preferably, the positioning assembly further comprises an elastic limiting component, and the elastic limiting component is arranged on one side of the positioning component, which is away from the fixing component, and is used for abutting against the positioning component so as to apply a force along the positioning direction to the positioning component.

Adopt above-mentioned setting, when rigidity stop part dodges the locating part, still can have the effect of elasticity stop part between locating part and the main part component (battery package), that is to say, at the in-process of battery package assembly installation, a side of locating part can support and lean on fixed component (battery fixing base), and another side of locating part can support and lean on elasticity stop part, and the locating part plays the effect of direction.

Preferably, the elastic limiting part is arranged opposite to the positioning edge, and the elastic limiting part is used for abutting against the positioning edge.

By adopting the arrangement, the elastic limiting component avoids the positioning body, and a sufficient space is reserved for the rigid limiting component.

Preferably, the elastic limiting part is made of rubber.

Among the above-mentioned technical scheme, rubber processing is convenient, reuse rate is high.

A battery pack assembly, which comprises a battery pack, is characterized in that:

the battery pack assembly further comprises the positioning assembly, wherein the battery pack is the main body component;

or, the battery pack assembly further comprises the positioning component, the positioning component is arranged on the battery pack, and the positioning direction is a direction close to or far away from the battery pack.

The battery replacing platform assembly comprises a battery replacing platform and is characterized by further comprising a battery pack assembly, wherein the battery replacing platform is matched with the battery pack assembly so as to install the battery pack assembly on a battery fixing seat or detach the battery pack assembly from the battery fixing seat.

Preferably, the battery replacement platform comprises a platform body and an unlocking component arranged on the platform body, and the unlocking component is connected with the positioning component to drive the rigid limiting component to move so as to overcome the elastic force of the reset component.

By adopting the arrangement, in the process of installing the battery pack assembly to the battery fixing seat, the unlocking component can act on the rigid limiting component, so that the rigid limiting component does not extrude the positioning component, and the friction force between the positioning component and the seat positioning surface is not too large, thereby facilitating installation.

Preferably, the positioning assembly is the positioning assembly described above, the unlocking component includes a limiting wall, and in the process of connecting the unlocking component and the positioning assembly, the limiting wall is slidably disposed on the outer surface of the positioning housing and is used for driving the rigid limiting component to overcome the elastic force of the resetting component and at least partially retract into the positioning housing.

The quick-change bracket assembly comprises a battery fixing seat and is characterized by further comprising the battery pack assembly, wherein the battery fixing seat is the fixing component.

An electric vehicle comprises a battery fixing seat and is characterized by further comprising the battery pack assembly, wherein the battery fixing seat is the fixing component.

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 invention.

The positive progress effects of the invention are as follows:

the invention discloses a positioning component, a battery pack, a battery replacement platform, a quick-change bracket assembly and an electric vehicle, wherein a movable rigid limiting part is adopted; in the process of assembling and disassembling the battery pack assembly, the rigid limiting part can leave a margin for the movement of the positioning part close to the main body component (the battery pack), so that the positioning part can not rub or slightly rub the fixed component (the battery fixing seat) during assembling and disassembling, and the assembling and disassembling can be normally carried out; after the battery pack assembly is installed, the rigid limiting part can drive the positioning part to abut against the fixing component (battery fixing seat) and establish rigid connection between the positioning part and the main body component (battery pack), and movement allowance along the width direction of the main body component (battery pack) is eliminated (namely, a gapless state is achieved), so that the battery pack assembly cannot shake even in a non-steady driving state, at least, the shake of the battery pack assembly is weakened compared with the prior art, the safety performance is improved, and the service life is prolonged.

Drawings

Fig. 1 is a front view schematically illustrating a positioning assembly according to embodiment 1 of the present invention.

Fig. 2 is a schematic sectional view taken along a direction a-a in fig. 1.

Fig. 3 is a schematic cross-sectional view taken along the direction B-B in fig. 1.

Fig. 4 is a left side view schematically illustrating a positioning assembly according to embodiment 1 of the present invention.

Fig. 5 is a rear view schematically illustrating a positioning assembly according to embodiment 1 of the present invention.

Fig. 6 is a perspective view of a positioning member of embodiment 1 of the present invention at an angle.

Fig. 7 is a perspective view of the positioning member of embodiment 1 of the present invention at another angle.

Fig. 8 is a perspective view of a rigid limiting member and a restoring member according to embodiment 1 of the present invention.

Fig. 9 is a schematic perspective view of a positioning housing according to embodiment 1 of the present invention.

Fig. 10 is a perspective view of a battery pack assembly according to embodiment 2 of the present invention.

Fig. 11 is an enlarged schematic view of a portion C in fig. 10.

Fig. 12 is an exploded perspective view of a battery swapping platform assembly in embodiment 3 of the invention.

Fig. 13 is an enlarged schematic view of portion D of fig. 12.

Fig. 14 is an exploded perspective view of a quick-change holder assembly according to embodiment 4 of the present invention.

Fig. 15 is a frame diagram of an electric vehicle according to embodiment 5 of the present invention.

Description of reference numerals:

100: a battery pack assembly; 1000: a battery pack; 1100: positioning the side surface; 2000: a positioning assembly; 2100: a positioning member; 2110: a first contact portion; 2120: positioning the body; 2130: positioning the edge; 2140: avoiding the groove; 2200: a rigid spacing member; 2210: a second contact portion; 2220: a limiting head; 2230: a limiting rod part; 2240: a limiting groove; 2300: positioning the housing; 2310: an accommodating chamber; 2321: a first opening; 2322: a second opening; 2330: a limiting hole; 2400: a reset component; 2500: an elastic limit component; DD 1: a first orientation direction; DD 2: a second orientation direction; DX 1: a first limit direction; DX 2: a second limit direction; DY: extension direction of limiting sliding surface

30: a battery replacement platform assembly; 300: a battery replacement platform; 310: a platform body; 320: an unlocking member; 321: limit wall

40: a quick-change bracket assembly; 400: quickly replacing the bracket; 410: a battery holder; 411: seat positioning surface

50: electric vehicle

Detailed Description

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

Example 1

As shown in fig. 1-9, the present embodiment discloses a positioning assembly 2000. The positioning assembly 2000 comprises a positioning housing 2300, a positioning member 2100, a rigid stop member 2200, and a restoring member 2400.

The positioning member 2100 is slidably disposed on the positioning housing 2300 and can at least partially extend or retract into the positioning housing 2300 along the positioning direction. For illustrative clarity, as shown in fig. 2-3, the positioning direction is divided into a first positioning direction DD1 and a second positioning direction DD2 which are opposite, the first positioning direction DD1 is a direction in which the positioning member 2100 extends out of the positioning housing 2300, and the second positioning direction DD2 is a direction in which the positioning member 2100 retracts into the positioning housing 2300. The positioning member 2100 is adapted to abut a fixed member.

The rigid limiting component 2200 is slidably disposed on the positioning housing 2300 along the limiting direction. For greater clarity, as shown in fig. 2 and 8, the restraining direction is divided into first and second opposing restraining directions DX1, DX 2.

The positioning member 2100 has a first contact portion 2110 and the rigid stop member 2200 has a second contact portion 2210. At least one of the first contact portion 2110 and the second contact portion 2210 is a limiting sliding surface, and the first contact portion 2110 and the second contact portion 2210 can contact with each other and can slide relatively. The extending direction DY, the positioning direction and the limiting direction of the limiting sliding surface are not parallel to each other.

The restoring member 2400 is connected to the rigid stopper member 2200 and applies an elastic force in the stopper direction to the rigid stopper member 2200. The stopper slide surface is gradually separated from the fixing member along the urging direction of the reset device 2400. The urging direction of the reset device 2400 is the first limit direction DX 1.

Above, the rigid stopper part 2200 may make no gap between the positioning part 2100 and the fixing member.

The "rigid limiting member" refers to a member having high rigidity and hardly deformed by an external force. It is understood that a more rigid, less deformable component is provided than the resilient components commonly used in the art, such as rubber. The modulus of elasticity of the rubber is generally 10^-3On the order of Gpa, and the modulus of elasticity of the rigid restraint part 2200 is preferably greater than 1Gpa, more preferably greater than 10Gpa, and even more preferably greater than 100 Gpa; the rigid retainer part 2200 may be made of carbon steel, castIron, and the like.

In this embodiment, the limiting sliding surface is a plane. The flat surface versus the curved surface can make the relative sliding between the positioning member 2100 and the rigid retainer member 2200 smoother. And specifically, the first and

second contact portions

2110, 2210 are both limit slide surfaces. Therefore, the positioning member 2100 and the rigid limiting member 2200 are in surface contact, which is more reliable than the technical solution of line contact or point contact.

In addition, in this embodiment, the positioning direction is perpendicular to the limiting direction, and an included angle between the limiting direction and the extending direction DY of the limiting sliding surface is less than 30 °. The self-locking of the rigid limiting member 2200 can be achieved, and even if the positioning member 2100 moves in the second positioning direction DD2 to act on the rigid limiting member 2200, the rigid limiting member 2200 hardly moves in the second limiting direction DX 2. In this embodiment, as shown in fig. 2, this angle is 16 °, in an alternative embodiment, this angle may be 14 °, 17 °, 25 °, and so on. It will be understood by those skilled in the art that "perpendicular" as described herein may be generally perpendicular, not necessarily exactly 90 °, but may be within a tolerance of ± 1 °, even within a tolerance of ± 5 °.

The positioning housing 2300 has a receiving cavity 2310, the receiving cavity 2310 has an opening (i.e., the first opening 2321), and the positioning member 2100 has a positioning body 2120 and a positioning rim 2130. The positioning rim 2130 is connected to the periphery of the positioning body 2120, the positioning rim 2130 is located in the accommodating cavity 2310, the positioning body 2120 extends out of the positioning shell 2300 through the opening, and the positioning rim 2130 is blocked by the periphery of the opening. The periphery of the opening blocks the positioning member 2100 so that the positioning member 2100 does not leave the positioning housing 2300 at all times.

In this embodiment, the positioning body 2120 is slidably disposed in the opening (i.e. the first opening 2321), and the positioning rim 2130 is slidably disposed on the wall of the accommodating cavity 2310. In an alternative embodiment, only the positioning body can be slidably arranged in the first opening; or, only the positioning edge can be arranged on the wall surface of the containing cavity in a sliding manner; can play the role of guiding, but because, in practice, the thickness of the positioning part cannot be too large, the two guiding effects are better, and the space utilization rate is higher.

The rigid stop member 2200 includes a stop head portion 2220 and a stop shaft portion 2230. The second contact part 2210 is located at the position-limiting head part 2220, the position-limiting head part 2220 is located in the accommodating cavity 2310, the wall part of the positioning housing 2300 defining the accommodating cavity 2310 is provided with a position-limiting hole 2330, the axis of the position-limiting hole 2330 extends in the position-limiting direction, the position-limiting rod part 2230 is slidingly arranged in the position-limiting hole 2330, and the position-limiting head part 2220 is blocked by the periphery of the position-limiting hole 2330. The stop head 2220 acts on the positioning member 2100 to move the positioning member 2100, and the periphery of the stop hole 2330 blocks the rigid stop member 2200 so that the rigid stop member 2200 does not leave the positioning housing 2300 at all times. The limiting hole 2330 guides the limiting rod 2230.

In this embodiment, as shown in fig. 8, the restraining head 2220 is generally pyramidal (a wedge-shaped block) and the restraining shaft 2230 is generally cylindrical. In alternative embodiments, the retaining head may be in the form of a partial sphere or the like, as long as it is not a deformable non-rigid structure such as: only a monolithic sheet-like structure; the limiting rod part can be in other shapes such as a square column shape, a conical column shape and the like. In this embodiment, the rigid retainer part 2200 is integrally formed. In alternative embodiments, the rigid retainer components may be formed separately and then assembled together using fasteners or the like. In an alternative embodiment, where the rigid retainer part is in direct contact with the locating side, the retainer rod portion may not be part of the rigid retainer part, i.e.: the rigid retainer component may include only the retainer head as shown, while the retainer stem portion may be made of an elastomeric material or the like and connected to the retainer head.

In this embodiment, as shown in fig. 2 and 5, under the action of the restoring member 2400, the position-limiting rod 2230 can be partially located outside the positioning housing 2300. The movement of the rigid stopper part 2200 may be achieved by the restoring part 2400, and a portion of the stopper rod part 2230 exposed to the positioning housing 2300 may be conveniently manipulated. When the battery pack assembly is mounted, an external force may be taken to overcome the force of the restoring member 2400 such that the rigid retainer member 2200 does not cause the positioning member 2100 to strongly abut against the fixing member; after the battery pack assembly is mounted, the restoring member 2400 may be released such that the rigid retainer member 2200 moves the positioning member 2100 and strongly abuts against the fixing member.

In this embodiment, the positioning assembly 2000 includes two rigid limiting members 2200, and the restoring member 2400 is connected between the two rigid limiting members 2200 and applies opposite elastic forces to the two rigid limiting members 2200. As shown in FIG. 2, the first restraining direction DX1 of one rigid restraining component 2200 is opposite the first restraining direction DX1 of the other rigid restraining component 2200. The two rigid limiting components 2200 move back and forth when moving along the first limiting direction DX1, so that the two rigid limiting components 2200 can be controlled by the same resetting component 2400, and the two rigid limiting components 2200 can be controlled more smoothly due to the movement of the two rigid limiting components 2200. Specifically, the return member 2400 is a compression spring. Has the advantages of simple structure, easy assembly and low cost.

In this embodiment, as shown in fig. 8, the rigid limiting component 2200 is provided with a limiting groove 2240, and one end of the resetting component 2400 is located in the limiting groove 2240; and because two rigid limiting parts 2200 are arranged, two ends of the reset part 2400 are respectively positioned in the limiting grooves 2240 of the two rigid limiting parts 2200. In an alternative embodiment, the rigid limiting component may be provided with a limiting protrusion, and the resetting component is sleeved on the limiting protrusion.

Furthermore, as shown in fig. 3 and 5, the positioning assembly 2000 further comprises an elastic limiting component 2500, wherein the elastic limiting component 2500 is arranged on one side of the positioning component 2100 facing away from the fixing member and is used for abutting against the positioning component 2100 to apply a force to the positioning component 2100 along the positioning direction. Specifically, as shown in fig. 3, the positioning housing 2300 further has a second opening 2322, and the elastic limiting member 2500 is located in the second opening 2322. When the rigid limiting part 2200 is retracted from the positioning part 2100, the positioning part 2100 and the body member may still have the function of the elastic limiting part 2500, that is, during the installation of the battery pack assembly, one side surface of the positioning part 2100 may abut against the fixing member, the other side surface of the positioning part 2100 may abut against the elastic limiting part 2500, and the positioning part 2100 plays a role of guiding.

As shown in fig. 3 and 5, the elastic stopper 2500 is disposed opposite to the positioning rim 2130, and the elastic stopper 2500 is used to abut against the positioning rim 2130. The elastic stopper 2500 avoids the positioning body 2120, and provides a sufficient space for the rigid stopper 2200. The elastic limiting component 2500 is rubber. It has the advantages of convenient processing and high reuse rate.

As shown in fig. 7, the positioning component 2100 is further provided with an avoidance groove 2140 for avoiding the limiting rod 2230; in an alternative embodiment, if the positioning part and the limiting rod part do not interfere with each other, the avoidance groove does not need to be arranged.

Alternatively, the positioning component 2000 of the present embodiment can be described as: the positioning assembly 2000 is adapted to be disposed between the body member and the fixation member. The positioning assembly 2000 includes a positioning component 2100 and a rigid stop component 2200. The positioning component 2100 is adapted to be movably connected to the body member, the positioning component 2100 being movable relative to the body member in opposite first and second positioning directions DD1 and DD2, the first positioning direction DD1 being away from the body member and the second positioning direction DD2 being towards the body member. The positioning component 2100 is used to abut against a fixation member. The rigid stop member 2200 is adapted to be movably coupled to the body member, and the rigid stop member 2200 is adapted to contact the positioning member 2100 to limit movement of the positioning member 2100 toward the body member. When the rigid stop feature 2200 is in contact with the positioning feature 2100, the positioning feature 2100 is rigidly connected to the body member by the rigid stop feature 2200. The rigid stop component 2200 is movable relative to the body member in opposite first and second stop directions DX1 and DX 2. When the rigid limiting member 2200 contacts the positioning member 2100 and moves in the first limiting direction DX1, the rigid limiting member 2200 moves the positioning member 2100 away from the body member. The positioning component 2100 is movable closer to the body member when the rigid limiting component 2200 is moved in the second limiting direction DX 2.

Example 2

As shown in fig. 10 to 11, the battery pack assembly 100 of the present embodiment includes a battery pack 1000 and the positioning member 2000 of embodiment 1. The battery pack 1000 is the main body member described in example 1. The positioning assembly 2000 is disposed on the battery pack 1000, and the positioning direction is a direction approaching or separating from the battery pack 1000, specifically, the first positioning direction DD1 is a direction separating from the battery pack 1000, and the second positioning direction DD2 is a direction approaching the battery pack 1000.

The battery pack 1000 has a positioning side 1100, and the positioning side 1100 is disposed opposite to a seat positioning surface of a battery fixing seat (i.e., a fixing member, not shown in this embodiment). Wherein, the battery holder is used for installing the battery pack assembly 100. The battery pack 1000 is generally symmetrically provided with two positioning side surfaces 1100 parallel to each other at both sides, one positioning side surface 1100 is shown in fig. 10, and the other positioning side surface is shielded due to the angle of fig. 10. In this embodiment, two positioning side surfaces 1100 are each provided with one positioning assembly 2000. In an alternative embodiment, only one positioning side may be provided with a positioning assembly; two or more locating components may also be provided per locating side.

Example 3

As shown in fig. 12 to 13, the swapping platform assembly 30 of the present embodiment includes a swapping platform 300 and the battery pack assembly 100 described in embodiment 2. The power exchanging platform 300 is used to match the battery pack assembly 100 to mount the battery pack assembly 100 on the battery holder 410 or to detach the battery pack assembly 100 from the battery holder 410.

Battery replacement platform 300 includes platform body 310 and locates unblock part 320 of platform body 310, and unblock part 320 is used for being connected with locating component 2000 in order to drive rigidity stop part 2200 motion in order to overcome the elastic force of reset part 2400. During the process of mounting the battery pack assembly 100 to the battery holder, the unlocking member 320 may act on the rigid limiting member 2200, so that the rigid limiting member 2200 does not press the positioning member 2100, and thus the friction force between the positioning member 2100 and the holder positioning surface 411 is not too large, which is convenient for mounting.

In this embodiment, the unlocking member 320 includes a stopper wall 321. During the process of connecting the unlocking member 320 to the positioning assembly 2000, the limiting wall 321 is slidably disposed on the outer surface of the positioning housing 2300 and is used to drive the rigid limiting member 2200 to retract into the positioning housing 2300 at least partially against the elastic force of the resetting member 2400.

Example 4

As shown in fig. 14, the quick-change holder assembly 40 of the present embodiment includes a quick-change holder 400 and the battery pack assembly 100 described in embodiment 2. The quick-change cradle 400 includes a battery holder 410. The battery holder 410 is the fixing member described in embodiment 1.

Similar to the battery pack assembly 100 of embodiment 1 having two positioning side surfaces 1100 symmetrically disposed and parallel to each other, the battery fixing base 410 also has two base positioning surfaces 411 symmetrically disposed and parallel to each other, and the two base positioning surfaces 411 correspond to the two positioning side surfaces 1100 respectively. Against which the positioning member 2100 abuts is the seat positioning surface 411.

In addition, the quick-change holder 400 includes electrical connectors, wires, and other structures known in the art.

The operation of the positioning assembly 2000 in the battery pack assembly 100 will be generally described with reference to the accompanying drawings:

after the battery pack assembly 100 is mounted on the battery holder 410, the force acting on the rigid limiting member 2200 to overcome the elastic force of the restoring member 2400 (the force is applied by the battery replacement platform 300, which is described in embodiment 3) is no longer applied. At this point, the reset device 2400 is released and acts on the limiter heads 2220 such that both limiter heads 2220 are moved in their first limiter direction DX 1. If the positioning component 2100 is not in place, the two positioning heads 2220 will drive the positioning component 2100 to move along the first positioning direction DD1 to the set gapless state. At this time, the positioning member 2100 abuts against the seat positioning surface 411 of the battery fixing seat 410, and a rigid connection is established between the positioning member 2100 and the battery pack 1000.

During the process of mounting the battery pack assembly 100 to the battery holder 410 and dismounting the battery pack assembly 100 from the battery holder 410, an external force is applied to the rigid retainer parts 2200, so that both the rigid retainer parts 2200 move in the second retaining direction DX2 against the elastic force of the reset part 2400. At this time, the rigid stopper member 2200 no longer blocks the movement of the positioning member 2100, that is, the elastic connection between the positioning member 2100 and the positioning side 1100 of the battery pack 1000 is established by the elastic stopper member 2500. Due to the elastic force of the elastic positioning member 2100, the positioning member 2100 still abuts against the seat positioning surface 411, but the abutting force is not excessive; that is to say, the friction force of the battery pack assembly 100 during vertical installation and disassembly is not too large, and the battery pack assembly 100 can play a role in guiding and prevent the battery pack assembly 100 from being too large in position deviation.

Example 5

As shown in fig. 15, the electric vehicle 50 includes a battery holder 410 and the battery pack assembly 100 according to embodiment 2. As described above, the battery holder 410 is a fixing member.

In this embodiment, specifically, the electric vehicle 50 includes a quick-change bracket 400, and the battery holder 410 is a part of the quick-change bracket 400. In an alternative embodiment, the electric vehicle 50 may only include the battery holder 410, but not include other parts of the quick-change cradle 400.

In this embodiment, the electric vehicle 50 is an electric bus, and in an alternative embodiment, the electric vehicle 50 may also be an electric car or any other type of electric vehicle 50.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

While specific embodiments of the invention 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 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

1. A positioning assembly for being disposed between a main body member and a fixing member, the positioning assembly including a positioning component for being movably connected to the main body member, the positioning component being capable of moving relative to the main body member in first and second opposite positioning directions, the first positioning direction being a direction away from the main body member and the second positioning direction being a direction closer to the main body member, the positioning component being for abutting against the fixing member, the positioning assembly comprising:

2. A positioning assembly comprises a positioning shell and a positioning component, wherein the positioning component is slidably arranged on the positioning shell and can at least partially extend out or retract into the positioning shell along a positioning direction, the positioning component is used for abutting against a fixed component, and the positioning assembly is characterized by further comprising:

3. The positioning assembly of claim 2, wherein the limiting slide is planar.

4. The positioning assembly of claim 3, wherein the first contact portion and the second contact portion are both the limit slide.

5. A positioning assembly according to claim 3, wherein said positioning direction is perpendicular to said limit direction, and said limit direction forms an angle of less than 30 ° with the extension direction of said limit slide.

6. The positioning assembly of claim 2, wherein the positioning housing defines a receiving cavity, the receiving cavity defines an opening, the positioning member defines a positioning body and a positioning rim, the positioning rim is connected to a peripheral edge of the positioning body, the positioning rim is located in the receiving cavity, the positioning body extends out of the positioning housing through the opening, and the positioning rim is blocked by the peripheral edge of the opening.

7. The positioning assembly according to claim 6, wherein the positioning body is slidably disposed in the opening and/or the positioning edge is slidably disposed in a wall of the accommodating cavity.

8. The positioning assembly according to claim 6, wherein the rigid limiting member comprises a limiting head and a limiting rod, the second contact portion is located in the limiting head, the limiting head is located in the accommodating cavity, a wall portion of the positioning housing defining the accommodating cavity is provided with a limiting hole, an axis of the limiting hole extends along the limiting direction, the limiting rod is slidably arranged in the limiting hole, and the limiting head is blocked by a peripheral edge of the limiting hole.

9. The positioning assembly of claim 8, wherein said limit post is partially positionable outside of said positioning housing by said restoring member.

10. A positioning assembly according to claim 2 wherein said positioning assembly includes two of said rigid stop members, said return member being connected between said two rigid stop members and applying opposing resilient forces to said two rigid stop members.

11. The positioning assembly of claim 10, wherein the return member is a compression spring.

12. The positioning assembly of claim 10, wherein said rigid retainer member defines a retainer recess, and wherein said reset member has one end positioned within said retainer recess; or the rigid limiting component is provided with a limiting bulge, and the resetting component is sleeved on the limiting bulge.

13. The positioning assembly according to any of claims 2-12, further comprising a resilient stop member provided at a side of the positioning member facing away from the fixation member and adapted to abut the positioning member to apply a force to the positioning member in the positioning direction.

14. The positioning assembly of claim 13, wherein the resilient stop member is disposed opposite the positioning rim, the resilient stop member being configured to abut the positioning rim.

15. The locating assembly of claim 13, wherein the resilient retention member is rubber.

16. A battery pack assembly, which comprises a battery pack, is characterized in that:

the battery pack assembly further comprising the positioning assembly of claim 1, the battery pack being the body member;

alternatively, the battery pack assembly further comprises a positioning component according to any one of claims 2 to 15, the positioning component is disposed on the battery pack, and the positioning direction is a direction approaching to or away from the battery pack.

17. A battery swapping platform assembly comprising a battery swapping platform, wherein the battery swapping platform assembly further comprises a battery pack assembly as claimed in claim 16, and the battery swapping platform is configured to mate with the battery pack assembly to mount the battery pack assembly on a battery holder or dismount the battery pack assembly from the battery holder.

18. The battery replacement platform assembly of claim 17, wherein the battery replacement platform comprises a platform body and an unlocking member disposed on the platform body, and the unlocking member is configured to be connected to the positioning assembly to drive the rigid limiting member to move so as to overcome an elastic force of the reset member.

19. The battery replacement platform assembly as recited in claim 18 wherein the positioning assembly is as recited in claim 9, the unlocking member comprises a limiting wall, and the limiting wall is slidably disposed on an outer surface of the positioning housing and configured to drive the rigid limiting member to retract at least partially into the positioning housing against the elastic force of the return member during the connection between the unlocking member and the positioning assembly.

20. A quick-change holder assembly comprising a battery holder, wherein the quick-change holder assembly further comprises the battery pack assembly of claim 16, and wherein the battery holder is the securing member.

21. An electric vehicle comprising a battery holder, wherein the electric vehicle further comprises the battery pack assembly of claim 16, and the battery holder is the fixing member.