CN114204176A

CN114204176A - Battery pack and electric vehicle for horizontally mounted on electric vehicle

Info

Publication number: CN114204176A
Application number: CN202111095458.6A
Authority: CN
Inventors: 张建平; 黄春华
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2020-09-17
Filing date: 2021-09-17
Publication date: 2022-03-18
Also published as: CN114274754A; CN217124533U; CN118970342A; CN216563299U; CN114194015B; CN118494149A; CN114204181A; CN114204199A; CN118970341A; CN114194063B; CN114204153A; CN114194063A; CN114194016A; CN216805100U; CN114194017B; CN118494151A; CN114204154A; CN217848141U; CN216648459U; CN114204335A

Abstract

The invention discloses a battery pack and an electric vehicle for being horizontally mounted on an electric vehicle, and belongs to the field of electric vehicle power exchange. A battery pack, the battery pack has an upper cover and a lower box body, a battery module is arranged between the upper cover and the lower box body, and the upper cover is installed with a second hook, which is used for moving in a vertical direction to an electric vehicle The position corresponding to the second hook seat on the bottom is moved into the second hook seat along the horizontal direction, so that the battery pack is hooked into the second hook seat on the electric vehicle. In the present invention, the second hanger is hung in the second hanger in the vertical direction, the connection point between the battery pack and the electric vehicle is increased, the installation stability is improved, and the stability of the battery pack during the driving of the electric vehicle is improved. Shock resistance.

Description

Battery pack for horizontal connection with electric automobile and electric automobile

This application claims priority from chinese patent application 202010981928.8 filed as 2020/09/17. This application refers to the above-mentioned patent application in its entirety.

Technical Field

The invention relates to the field of battery replacement of electric automobiles, in particular to a battery pack horizontally hung on an electric automobile and the electric automobile.

Background

At present, two modes of charging and battery replacement are mainly used for acquiring energy of the electric automobile. Due to the battery replacement mode, the electric energy can be rapidly supplied, the waiting time of customers is reduced, and the utilization rate of the battery replacement station is improved. In addition, the battery can be charged in a centralized manner at night, and peak shaving energy storage of the power load is realized. Meanwhile, the comprehensive utilization efficiency of the power equipment is improved, the service life of the battery is prolonged, and the method has high popularization value and economic significance.

In trading electric automobile, be provided with battery end electric connector and car end electric connector that the cooperation realized the electricity to be connected on quick change battery package and the electric automobile respectively, current battery end electric connector and car end electric connector adopt and carry out the electricity at the tip of quick change battery package and connect, in electric automobile driving process, often lead to the condition emergence of battery end electric connector and car end electric connector damage because of external environment, and battery end electric connector and car end electric connector carry out the electricity at the tip of quick change battery package and connect, lead to it to be close to the vehicle bottom, therefore require very high to the leakproofness of battery end electric connector and car end electric connector, otherwise the vehicle in case wade, battery end electric connector and car end electric connector take place the accident in soaking very easily.

Conventionally, battery packs have been replaced by various means such as manually or automatically, and in any of these means, when a battery is mounted on a bracket of a vehicle, the bracket needs to lock the battery to the bracket. At present, a plurality of lock shafts are arranged on two side edges of a battery pack and hung in lock grooves of a lock base of a bracket, so that the battery pack is connected with the bracket, and for the battery pack with a wider size, no connecting support exists between middle areas far away from two sides or the periphery of a locking position in the battery pack and an electric automobile, so that sinking phenomenon is easily found in the middle areas of the battery pack, and the battery pack is deformed and poor in anti-seismic performance.

Disclosure of Invention

The invention aims to solve the technical problem that the middle area of a battery pack mounted on an electric automobile is easy to find the sinking phenomenon due to the large size of the battery pack in the prior art, so that the battery pack is deformed and has poor anti-seismic performance.

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

the invention provides a battery pack for being horizontally hung on an electric automobile, which is provided with an upper cover and a lower box body, wherein a battery module is arranged between the upper cover and the lower box body.

Through the second articulate in the second articulates in the seat along vertical direction, increased hanging in vertical side in battery package and the electric automobile bottom, increased the tie point between battery package and the electric automobile on the one hand, improved installation stability, on the other hand has restricted the motion of battery package relative electric automobile in vertical direction, has improved the shock resistance of electric automobile in-process battery package that traveles.

Preferably, the second hanging piece is arranged in the middle area of the upper cover.

The shock resistance of the battery pack in the driving process of the electric automobile is improved, and particularly the shock resistance of the middle area far away from the locking positions on two sides or the periphery is improved.

Preferably, the second hanging piece comprises a connecting portion and a hanging portion, one end of the connecting portion is mounted on the upper cover, the other end of the connecting portion is connected with the hanging portion, the hanging portion is located above the upper cover, and the second hanging piece is hung in the second hanging seat through the hanging portion.

Preferably, the hanging part and the second hanging seat are mutually matched in any one mode of screw joint, clamping, buckling, inserting, hooking and joggling to realize hanging of the battery pack.

Preferably, the hanging part extends from the connecting part to a direction far away from the connecting part to form a bulge;

preferably, the hanging part protrudes from the connecting part along the horizontal direction.

Preferably, the outer wall of the connecting part is provided with a threaded part, and is fixedly connected with the upper cover through the threaded part.

Preferably, the outer wall of the connecting part is provided with a limiting part which extends outwards from the outer wall and is convex, and the limiting part is used for enabling the second hanging and connecting piece to abut against the upper cover.

Preferably, the limiting part is a nut and is sleeved on the threaded part of the connecting part.

Preferably, the hanging part is perpendicular to the connecting part, the connecting part is a connecting rod extending along the vertical direction, and the hanging part is a hanging rod extending along the horizontal direction.

Preferably, the hanging and connecting rod is cylindrical.

Preferably, the hanging part and the connecting part are integrally formed, or the hanging part and the connecting part are detachably connected.

Preferably, the battery pack further comprises a second mounting seat, and the second hanging piece is mounted on the upper cover through the second mounting seat.

Preferably, the second mounting seat is arranged between the upper cover and the lower box body.

Preferably, a sealing element is arranged between the second mounting seat and the upper cover.

Preferably, the second mounting seat is detachably connected with the upper cover, and the second mounting seat is fixedly connected with the lower box body.

Preferably, the second mounting seat includes a third accommodating cavity for providing an operating space, and/or a fourth accommodating cavity for accommodating the connecting portion.

Preferably, the battery pack includes a side wall portion, and at least two side surfaces of the side wall portion are vertically provided with a locking shaft for locking the battery pack in a locking mechanism on an electric vehicle.

Preferably, the lower box body comprises a bottom wall portion and a side wall portion, the bottom wall portion and the upper cover are arranged oppositely, the side wall portion is arranged between the bottom wall portion and the upper cover, and the side wall portion is vertically provided with locking shafts along at least two side faces of the battery pack in the length direction and used for locking the battery pack in a locking mechanism on the electric automobile.

Preferably, the second hanging piece is arranged in the middle of the battery pack in the length direction.

Preferably, the battery pack is provided with a plurality of second hanging and connecting pieces, and at least one row of the second hanging and connecting pieces is linear.

Preferably, the plurality of second hanging parts are connected into a row of second hanging parts through a connecting part.

Preferably, the battery pack further comprises a first locking piece and/or a second locking piece, the first locking piece is used for locking the battery pack to a bolt type locking mechanism on the electric automobile, and the second locking piece is used for locking the battery pack to an expansion bead type locking mechanism on the electric automobile.

Preferably, the battery pack further comprises the battery end electrical connector; and/or the battery pack further comprises the liquid cooling connecting device.

Preferably, the battery end electrical connector is arranged on the upper cover, and the liquid cooling pipeline connecting device is arranged on the side wall portion of the upper cover or the lower box body.

The invention also provides an electric automobile which comprises a battery mounting part and the battery pack.

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: through the second articulate in the second articulates in the seat along vertical direction, increased hanging in vertical side in battery package and the electric automobile bottom, increased the tie point between battery package and the electric automobile on the one hand, improved installation stability, on the other hand has restricted the motion of battery package relative electric automobile in vertical direction, has improved the shock resistance of electric automobile in-process battery package that traveles. Especially the shock resistance of the central area away from the two-sided or peripheral locking position.

Drawings

Fig. 1 is a schematic view illustrating a first mounting manner of a battery-end electrical connector for replacing batteries, which is mounted on a battery pack according to the present invention;

fig. 2 is a schematic perspective view of a battery end electrical connector for replacing batteries according to the present invention;

FIG. 3 is a side view of the structure of FIG. 2;

FIG. 4 is a schematic view of the battery-side electrical connector of FIG. 1 connected to a vehicle-side electrical connector;

FIG. 5 is a schematic diagram of a second installation manner of the battery-end electrical connector for battery replacement according to the present invention;

FIG. 6 is a schematic view of the battery-side electrical connector of FIG. 5 connected to a vehicle-side electrical connector;

FIG. 7 is a schematic view of another alternative first mounting manner of the battery-end electrical connector for battery replacement according to the present invention on a battery pack;

FIG. 8 is a schematic perspective view of another alternative battery-end electrical connector for replacing batteries according to the present invention;

FIG. 9 is a schematic top view of the structure of FIG. 8;

FIG. 10 is a schematic view of the battery-side electrical connector of FIG. 7 connected to a vehicle-side electrical connector;

FIG. 11 is a schematic perspective view of a vehicle-end electrical connector according to the present invention;

FIG. 12 is a side view of the structure of FIG. 11;

FIG. 13 is a schematic view of a fixing base body of the vehicle-end electrical connector shown in FIG. 11;

FIG. 14 is a schematic view of the vehicle end electrical connector shown in FIG. 11 connected to a battery end electrical connector;

FIG. 15 is a schematic perspective view of another vehicle end electrical connector of the present invention;

FIG. 16 is a schematic view of the vehicle end electrical connector shown in FIG. 15 connected to a battery end electrical connector;

FIG. 17 is a schematic diagram of a liquid-cooled connection assembly according to embodiment 5 of the present invention;

FIG. 18 is a schematic configuration diagram of a first liquid-cooled connecting apparatus according to embodiment 5 of the present invention;

FIG. 19 is a schematic configuration diagram of a second liquid-cooling connecting apparatus according to embodiment 5 of the present invention;

FIG. 20 is a schematic view showing a first mounting manner of the liquid-cooled connecting device at the battery end of the battery pack according to embodiment 10 of the present invention;

FIG. 21 is a schematic view showing a second embodiment of the liquid-cooled battery connection apparatus according to embodiment 11 of the present invention mounted on a battery pack;

FIG. 22 is a schematic view showing a first mounting manner of the vehicle-side liquid-cooled connecting apparatus to the battery mounting portion in accordance with embodiment 12 of the present invention;

FIG. 23 is a schematic view showing a second mounting manner of the vehicle-side liquid-cooled connecting apparatus according to embodiment 13 of the present invention on the battery mounting portion;

fig. 24 is a schematic structural view of a battery pack according to embodiment 6 of the present invention mounted on a battery pack mounting portion;

fig. 25 is a schematic structural view of a battery pack according to embodiment 6 of the invention;

fig. 26 is a schematic top view of a battery pack according to embodiment 6 of the present invention;

FIG. 27 is a cross-sectional view of the battery pack of FIG. 26 taken along plane A-A;

fig. 28 is a schematic combined structure view of the first hanging piece and the first hanging seat according to embodiment 6 of the present invention;

FIG. 29 is a top view of FIG. 28;

FIG. 30 is a cross-sectional view taken along plane A-A of FIG. 29;

fig. 31 is a schematic structural view showing that the battery pack according to embodiment 7 of the present invention is mounted to the battery pack mounting part,

fig. 32 is a schematic structural view of a battery pack according to embodiment 7 of the invention;

fig. 33 is a schematic combined structure view of the second hanging piece and the second hanging seat according to embodiment 7 of the present invention;

FIG. 34 is a top view of FIG. 33;

FIG. 35 is a cross-sectional view taken along plane B-B of FIG. 34;

fig. 36 is a side view of a battery pack according to embodiment 7 of the invention;

FIG. 37 is a cross-sectional view taken along plane B-B of FIG. 36;

fig. 38 is a schematic structural view of a battery pack according to embodiment 8 of the invention mounted on a battery pack mounting portion;

fig. 39 is a schematic structural view of a battery pack mounting portion according to embodiment 8 of the invention;

fig. 40 is a top view of a combination structure of the first hanging piece and the first hanging seat according to embodiment 8 of the present invention;

FIG. 41 is a cross-sectional view taken along plane A-A of FIG. 40;

fig. 42 is a schematic structural view of a battery pack according to embodiment 9 of the invention mounted on a battery pack mounting portion;

fig. 43 is a schematic structural view of a battery pack mounting portion according to embodiment 9 of the invention;

fig. 44 is a schematic combined structure view of the second hanging piece and the second hanging seat in embodiment 9 of the present invention;

fig. 45 is a schematic structural view of a second hitching base according to embodiment 9 of the present invention;

fig. 46 is a schematic perspective view of a battery pack according to the present invention;

fig. 47 is a schematic top view of another battery pack according to the present invention;

FIG. 48 is a perspective view of a battery pack mounting portion according to the present invention;

fig. 49 is a bottom view of another battery pack mounting portion according to the present invention.

Detailed Description

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

Example 1

The present embodiment provides a battery-end electrical connector for replacing a battery.

As shown in fig. 2 and 3, the battery-end electrical connector 12 includes a mounting side 121 and a conductive output side 122. As shown in fig. 1 and 4, the battery-end electrical connector 12 is mounted to a battery pack 1 via a mounting side 121, and the battery pack 1 is used to be mounted to an electric vehicle to supply power to the electric vehicle (not shown). And a conductive output side 122, wherein the conductive output side 122 is arranged at the top of the battery pack 1 and is connected with the vehicle-end electric connector 22 of the electric vehicle from the bottom to the top.

In this embodiment, the mounting side 121 and the conductive output side 122 are disposed non-perpendicularly. For ease of installation, the top of the battery pack typically has a horizontal surface for mounting the battery end electrical connectors 12, and thus the mounting side 121 is typically disposed parallel to the conductive output side 122 (as shown in fig. 3). When the mounting side 121 is connected to the top surface of the battery pack 1, the conductive output side 122 is parallel to the horizontal projection plane of the top surface of the battery pack 1, in other words, the conductive output side 122 is disposed upward along the battery pack 1.

As shown in fig. 2 and fig. 3, the battery terminal electrical connector 12 in this embodiment specifically includes a fixing base body 120, and two opposite sides of the fixing base body 120 are a mounting side 121 and a conductive output side 122, respectively.

As shown in fig. 5 and 6, the horizontal projection plane of the conductive output side 122 of the fixing base body 120 in this embodiment is rectangular-like, and the long side of the conductive output side 122 is parallel to the X direction; the X direction is the locking direction of the battery pack 1 locked on the electric automobile or the direction from the head to the tail of the electric automobile; preferably, the X direction is a locking direction in which the battery-side electrical connector 12 is locked to the electric vehicle after being connected to the vehicle-side electrical connector 22.

In this embodiment, when the battery pack 1 is mounted on the electric vehicle, the battery pack 1 moves a certain distance along the locking direction (X direction), and in the moving process, the car-end electrical connector 22 moves along with the battery pack 1, and if the long side of the battery-end electrical connector 12 is perpendicular to the X direction, the corresponding car-end electrical connector 22 also needs to be mounted in a matching manner with the car-end electrical connector 22 (as shown in fig. 6).

As shown in fig. 2 and fig. 3, the battery-end electrical connector 12 in this embodiment further includes a first conductive electrode post 123, two ends of the first conductive electrode post 123 are respectively a first conductive output end and a first conductive input end, the first conductive electrode post 123 is disposed on the fixing base body 120 in a penetrating manner, the first conductive output end is located on the conductive output side 122, the first conductive input end is located on the mounting side 121, and the first conductive electrode post 123 includes a high-voltage pole assembly and a low-voltage pole assembly. Preferably, the battery further comprises a first pole mounting seat 124, and the first conductive pole 123 is disposed through the first pole mounting seat 124. The fixing base body 120 has an installation cavity, and the first pole mounting base 124 is fixedly disposed in the installation cavity. The first pole mounting base 124 is exposed out of the surface of the conductive output side 122 of the fixing base body 120; and/or the first conductive pole 123 is not exposed on the surface of the first pole mounting base 124 on the conductive output side 122.

In this embodiment, the high voltage pole post assembly and the low voltage pole post assembly in the first conductive pole 123 are respectively used to realize the connection between high voltage and low voltage, and since the first conductive pole 123 is integrally made of conductive material, the first pole post mounting seat 124 is usually made of insulating material to prevent mutual interference.

As shown in fig. 2, in this embodiment, the fixing base body 120 is further provided with a first positioning member 125 (specifically, the first positioning member 125 shown in fig. 2 is a positioning hole), the first positioning member 125 is located outside the mounting cavity, and the first positioning member 125 is exposed on the surface of the conductive output side 122 of the fixing base body 120, so as to facilitate electrical connection between the battery end electrical connector 12 and the vehicle end electrical connector 22 in an accurate butt joint manner.

As shown in fig. 2, in this embodiment, the height of the first positioning member 125 exposed on the surface of the conductive output side 122 of the fixing base body 120 is greater than the height of the first pole mounting base 124 exposed on the surface of the conductive output side 122 of the fixing base body 120. To ensure that the first positioning member 125 contacts the second positioning member of the vehicle end electrical connector 22 before the first conductive electrode column contacts the second conductive electrode column of the vehicle end electrical connector 22.

As shown in fig. 2 and 3, in the present embodiment, the surface of the mounting side 121 of the fixing base body 120 is provided with a first sealing gasket 126; and/or a second sealing gasket 127 is arranged on the surface of the conductive output side 122 of the fixing seat body 120. Since the conductive output side 122 is at the top of the battery pack 1 and faces upward, and the corresponding conductive input side of the vehicle-end electrical connector 22 connected thereto is provided with a gasket, the arrangement of at least the first gasket 126 is ensured to play a role of buffering and sealing between the mounting side 121 and the battery pack 1.

As shown in fig. 3, a circle of first enclosure 128 is convexly provided on the surface of the mounting side 121 of the fixing base body 120 along the edge of the mounting cavity in this embodiment; a first hollow-out part is formed in the position, corresponding to the installation cavity, of the first sealing gasket 126; the first sealing gasket 126 is attached to the surface of the mounting side 121 of the fixing base body 120, and the edge of the first hollow portion is attached to the first surrounding barrier 128.

As shown in fig. 2, in the present embodiment, the second gasket 127 is provided with a second hollow portion, and a circle of sealing ribs is convexly provided on the first surface of the second gasket 127 along the second hollow portion; the second surface of the second sealing gasket 127 is attached to the surface of the conductive output side 122 of the fixing seat body 120, and a circle of sealing convex ribs is arranged around the outer edge of the region formed by the first conductive electrode column 123 and the first positioning part 125; the second surface is opposite to the first surface.

Preferably, a circle of second surrounding barrier 129 is convexly arranged on the surface of the conductive output side 122 of the fixing seat body 120, and the circle of second surrounding barrier 129 is arranged around the outer edge of the area formed by the first conductive electrode column 123 and the first positioning component 125; the second gasket 127 is provided with a second hollow part, and a circle of sealing convex edges are convexly arranged on the first surface of the second gasket 127 along the second hollow part; the second surface of the second sealing gasket 127 is attached to the surface of the conductive output side 122 of the fixing seat body 120, a circle of sealing convex rib is attached to the second surrounding barrier 129, and the second surface is opposite to the first surface; or, the second gasket 127 is provided with a second hollow portion, a second surface of the second gasket 127 is attached to the surface of the conductive output side 122 of the fixing seat body 120, and an edge of the second hollow portion is attached to the second enclosure 129.

In this embodiment, by installing the battery end electrical connector 12 at the top of the battery pack 1, when the battery pack 1 is installed at the bottom of the electric vehicle, a battery accommodating cavity which is recessed inward and has a downward opening is actually arranged at the bottom of the electric vehicle, and when the battery pack 1 is installed in the battery accommodating cavity, the conductive output side 122 is accommodated between the battery pack 1 and the top wall of the battery accommodating cavity, so that the conductive output side 122 is not easily affected by the external environment. For example, when the electric vehicle is driven, the conductive output side 122 is not easily damaged by collision, or when the electric vehicle is waded into water, the conductive output side 122 is not easily damaged by water immersion, so that the battery pack 1 can stably supply power to the electric vehicle.

Example 2

This embodiment provides another battery-side electrical connector for replacing power.

As shown in fig. 8 and 9, the battery-end electrical connector 12 includes a mounting side 121 and a conductive output side 122. As shown in fig. 7 and 10, the battery-end electrical connector 12 is mounted to a battery pack 1 through a mounting side 121, and the battery pack 1 is used for being mounted to an electric vehicle (not shown) to supply power to the electric vehicle. The conductive output side 122 is provided on the top of the battery pack 1, and is disposed to be connected to the vehicle-end electrical connector 22 of the electric vehicle in a horizontal direction.

In the present embodiment, the top of the battery pack 1 has a bump 13, and the bump 13 has a mounting surface perpendicular to the horizontal projection plane of the top surface of the battery pack 1, so that the mounting side 121 and the conductive output side 122 can be disposed in parallel. In addition, the battery pack 1 has a flat or inclined surface on the top for mounting the battery terminal electrical connector 12, so that in this case, the mounting side 121 and the conductive output side 122 may also be disposed in a non-parallel manner, for example, in a perpendicular manner. The mounting side 121 is connected to the mounting surface, and the conductive output side 122 is perpendicular to the horizontal projection plane of the top surface of the battery pack 1, and generally, the conductive output side 122 faces the front end direction or the rear end direction of the battery pack 1.

As shown in fig. 8 and 9, the battery-end electrical connector 12 in this embodiment includes a fixing base body 120, and two adjacent sides of the fixing base body 120 are a mounting side 121 and a conductive output side 122.

As shown in fig. 8, the battery-end electrical connector 12 in this embodiment further includes a first conductive electrode post 123, two ends of the first conductive electrode post 123 are respectively a first conductive output end and a first conductive input end, and the first conductive electrode post 123 includes a high-voltage pole assembly and a low-voltage pole assembly. The first conductive electrode column 123 is disposed on the fixing base body 120 in a penetrating manner, and the first conductive output end is located on the conductive output side 122, and the first conductive input end is located on the installation side 121 or is accommodated in the fixing base body 120. Preferably, the device further comprises a first pole mounting seat 124, and the first conductive pole 123 is arranged through the first pole mounting seat 124; the fixing base has been seted up the installation cavity, and first utmost point post mount pad 124 sets firmly in the installation cavity. Moreover, the first pole mounting seat 124 is exposed on the surface of the conductive output side 122 of the fixing seat body 120; and/or the first conductive pole 123 is not exposed on the surface of the first pole mounting base 124 on the conductive output side 122.

As shown in fig. 8, in the embodiment, the fixing base body 120 is further provided with a first positioning part 125, the first positioning part 125 is located outside the mounting cavity (specifically, the first positioning part 125 shown in fig. 8 is a positioning hole), and the first positioning part 125 is exposed out of the surface of the conductive output side 122 of the fixing base body 120, so as to facilitate electrical connection between the battery end electrical connector 12 and the vehicle end electrical connector 22 in a precise mating manner.

As shown in fig. 8, in the present embodiment, the height of the first positioning member 125 exposed on the surface of the conductive output side 122 of the fixing base body 120 is greater than the height of the pole mounting base exposed on the surface of the conductive output side 122 of the fixing base body 120. To ensure that the first positioning member 125 contacts the second positioning member of the vehicle end electrical connector 22 before the first conductive post 123 contacts the second conductive post of the vehicle end electrical connector 22.

As shown in fig. 8 and 9, the surface of the mounting side 121 of the fixing base body 120 in the present embodiment is provided with a first gasket 126; and/or a second sealing gasket 127 is arranged on the surface of the conductive output side 122 of the fixing seat body 120. The second gasket 127 includes a ring body of annular configuration disposed along a surface edge of the conductive output side 122 of the holder body 120. Since the corresponding electrically conductive input side of the vehicle-end electrical connector 22 connected thereto is provided with a gasket, at least the first gasket 126 is ensured to function as a cushion and seal between the mounting side 121 and the battery pack 1.

In this embodiment, the conductive output side 122 of the battery-end electrical connector 12 is installed at the top of the battery pack 1, when the battery pack 1 is installed at the bottom of the electric vehicle, a battery accommodating cavity which is recessed inwards and has a downward opening is actually arranged at the bottom of the electric vehicle, and when the battery pack 1 is installed in the battery accommodating cavity, the conductive output side 122 is accommodated between the battery pack 1 and the top wall of the battery accommodating cavity, so that the conductive output side 122 is not easily affected by the external environment. For example, when the electric vehicle is driven, the conductive output side 122 is not easily damaged by collision, or when the electric vehicle is waded into water, the conductive output side 122 is not easily damaged by water immersion, so that the battery pack 1 can stably supply power to the electric vehicle.

Example 3

The present embodiment provides a vehicle end electrical connector.

As shown in fig. 11-13, the vehicle end electrical connector 22 includes a fixed side 221 and a conductive input side 222. The vehicle-end electrical connector 22 is mounted into a battery receiving cavity of the electric vehicle, which is formed by recessing upward from the bottom of the electric vehicle, through the fixing side 221. The conductive input side 222 is disposed at the top of the battery receiving cavity and is configured to be connected by the battery-end electrical connector 12 in a bottom-up orientation.

In this embodiment, the fixed side 221 and the conductive input side 222 are disposed non-perpendicularly; alternatively, the fixed side 221 is disposed parallel to the conductive input side 222. Specifically, the positional relationship between the fixed side 221 and the conductive input side 222 is preferably such that when the fixed side 221 is connected to the top surface of the battery receiving chamber, the conductive input side 222 is parallel to the horizontal projection plane of the top surface.

As shown in fig. 11 to 13, the vehicle-end electrical connector 22 in this embodiment specifically includes a mounting seat body 220, and two sides of the upper back of the mounting seat body 220 are a fixed side 221 and a conductive input side 222, respectively. Wherein, the mount body 220 comprises a fixed mount 2201 and a floating mount 2202; the two opposite sides of the fixed mounting seat 2201 are respectively a fixed side 221 and a floating connection side; floating mount 2202 is relatively floatingly connectable to the floating connection side of fixed mount 2201, and the side of floating mount 2202 opposite the floating connection side is conductive input side 222. In the case where the floating mount 2202 has a rectangular-like horizontal projection plane, it is preferable that the long side of the floating mount 2202 be parallel to the locking direction (the same first direction as described below) in which the battery pack 1 is locked into the battery receiving cavity, as shown in fig. 14.

In this embodiment, the floating between the floating mount 2202 and the fixed mount 2201 ensures that the vehicle-end electrical connector 22 and the battery-end electrical connector 12 are electrically connected stably at all times during the running of the electric vehicle.

Specifically, in this embodiment, floating between floating mount 2202 and fixed mount 2201 is achieved by the following structure, mount body 220 further includes third gasket 2203, and third gasket 2203 is wrapped at the joint of floating mount 2202 and fixed mount 2201 and is connected to floating mount 2202 and fixed mount 2201, respectively. In addition, an elastic connecting piece is further arranged between the floating installation seat 2202 and the fixed installation seat 2201, and two ends of the elastic connecting piece are respectively connected with the floating installation seat 2202 and the fixed installation seat 2201.

In this embodiment, the floating mount 2202 and the fixed mount 2201 are connected by an elastic connection member and wrapped with a third seal 2203, which can meet both the floating requirement and the waterproof requirement. And third gasket 2203 has certain elasticity, and by wrapping third gasket 2203 at the joint of floating installation seat 2202 and fixed installation seat 2201, floating between floating installation seat 2202 and fixed installation seat 2201 can be realized even if elastic connection is not available.

In other embodiments, floating mount 2202 and fixed mount 2201 also enable floating displacement in a first direction and a second direction via a sliding rail assembly or a sliding chute assembly. The first direction and the second direction here are parallel to the locking direction in which the battery pack 1 is locked into the battery receiving cavity.

As shown in fig. 11-13, the vehicle-end electrical connector 22 in this embodiment further includes a second conductive electrode column 224, two ends of the second conductive electrode column 224 are a second conductive output end and a second conductive input end, respectively; the second conductive electrode post 224 is disposed on the floating mount 2202 in a penetrating manner, the second conductive input end is located on the conductive input side 222, the second conductive output end is close to the fixed side 221, and the second conductive electrode post 224 includes a high-voltage pole assembly and a low-voltage pole assembly. Preferably, the vehicle-end electrical connector 22 further includes a second pole mounting seat 225, and the second conductive pole 224 is disposed through the second pole mounting seat 225; the floating mount 2202 has a receiving cavity 227, and the second pole mount 225 is fixed in the receiving cavity 227.

In this embodiment, the high-voltage pole assembly and the low-voltage pole assembly in the second conductive pole 224 are respectively used to realize the connection between high voltage and low voltage, and since the second conductive pole 224 is made of conductive material as a whole, the second pole mounting seat 225 is usually made of insulating material to prevent mutual interference.

In this embodiment, the floating mount 2202 and the fixed mount 2201 float in the axial direction and/or the radial direction of the second conductive electrode column 224, so that the vehicle-end electrical connector 22 and the battery-end electrical connector 12 can move together along the locking direction after being butted.

Preferably, the floating mount 2202 has a first floating displacement in a first direction and a second floating displacement in a second direction relative to the fixed mount 2201, the first direction being opposite to the second direction and the first floating displacement being greater than the second floating displacement. The first direction and the second direction are parallel to a locking direction in which the battery pack 1 is locked into the battery receiving cavity, and a difference between the first floating displacement amount and the second floating displacement amount is set to be equal to a locking displacement amount in which the battery pack 1 is locked into the battery receiving cavity. With this arrangement, it is ensured that floating mount 2202 remains centered on fixed mount 2201 in the use state.

As shown in fig. 11 to 13, the floating mount 2202 of the present embodiment is further provided with a second positioning member 226, the second positioning member 226 is located outside the accommodating cavity 227, and the second positioning member 226 is exposed to the surface of the conductive input side 222 of the floating mount 2202. Which is used to ensure that the second positioning member 226 contacts the first positioning member of the cell-end electrical connector 12 before the second conductive post 224 contacts the first conductive post of the cell-end electrical connector 12.

As shown in fig. 11-13, the vehicle-end electrical connector 22 of the present embodiment further includes a conductive connection side 223, and the conductive connection side 223 is used for electrically connecting with the electric vehicle; the conductive connection side 223 and the fixing side 221 are located on the same side or different sides, depending on conditions such as installation space. Preferably, the second conductive output end of the second conductive electrode pillar 224 and the conductive connection side 223 are electrically connected by a flexible connection member. To ensure that the connection between the second conductive output of second conductive post 224 and conductive connection side 223 is not torn during movement of floating mount 2202.

Preferably, in this embodiment, the third gasket 2203 is provided with a third hollow portion, a first surface of the third gasket is attached to the surface of the conductive input side 222 of the floating mount 2202, and a region formed by the second positioning component 226 and the second conductive electrode column 224 is located in the third hollow portion; and/or a circle of sealing flange is convexly arranged on the second surface of the third seal along the outer edge of the third hollow-out part, and a circle of folding part which protrudes in the same direction as the sealing flange is formed on the second surface of the third seal along the outer edge of the circle of sealing flange.

In this embodiment, by providing the corrugated portion, a certain elastic margin is reserved when the floating mount 2202 moves in the radial direction of the second conductive electrode column 224 together with the battery end electrical connector 12.

Preferably, the second pole mount 225 is exposed to the surface of the conductive input side 222 of the floating mount 2202; and/or the second conductive post 224 is exposed at a surface of the second pole mount 225 on the conductive input side 222.

Preferably, the height of the sealing flange exposed to the surface of the conductive input side 222 of the floating mount 2202 is smaller than the height of the second guide member exposed to the surface of the conductive input side 222 of the floating mount 2202.

In this embodiment, the vehicle-end electrical connector 22 is mounted on the top wall of the battery accommodating cavity, and the conductive input side 222 is kept facing downward, so as to be used with the battery-end electrical connector 12 described in embodiment 1, thereby ensuring that the conductive input side 222 of the vehicle-end electrical connector 22 is not easily affected by the external environment. For example, when the electric vehicle is driven, the conductive input side 222 is not easily damaged by a bump, or when the electric vehicle is waded into water, the conductive input side 222 is not easily damaged by water immersion, so that stable connection with the battery-side electrical connector 12 is ensured, and power is stably supplied to the electric vehicle.

Example 4

The present embodiment provides another vehicle end electrical connector.

As shown in fig. 15, the vehicle end electrical connector 22 includes a fixed side 221 and a conductive input side 222. The vehicle-end electrical connector 22 is mounted into a battery receiving cavity of an electric vehicle (not shown in the figure) through a fixing side 221, the battery receiving cavity being formed by upwardly recessing from the bottom of the electric vehicle; the conductive input side 222 is disposed at the top of the battery receiving cavity and is configured to be connected in a horizontal orientation by the battery terminal electrical connector 12 (as shown in fig. 16).

In this embodiment, the fixed side 221 and the conductive input side 222 are disposed non-parallel; alternatively, the fixed side 221 is disposed perpendicular to the conductive input side 222. Specifically, the positional relationship between the fixed side 221 and the conductive input side 222 is preferably a horizontal projection plane of the conductive input side 222 perpendicular to the top surface when the fixed side 221 is connected to the top surface of the battery receiving cavity.

As shown in fig. 15, the vehicle-end electrical connector 22 in this embodiment specifically includes a mounting seat body 220, and two adjacent sides of the mounting seat body 220 are a fixed side 221 and a conductive input side 222, respectively. Wherein, the mount body 220 comprises a fixed mount 2201 and a floating mount 2202; the two adjacent sides of the fixed mounting seat 2201 are respectively a fixed side 221 and a floating connection side; floating mount 2202 is relatively floatingly connectable to the floating connection side of fixed mount 2201, and the side of floating mount 2202 opposite the floating connection side is conductive input side 222.

In order to better realize the floating between the floating mount 2202 and the fixed mount 2201, the two are further provided with elastic connectors, and two ends of each elastic connector are respectively connected with the floating mount 2202 and the fixed mount 2201.

As shown in fig. 15, in this embodiment, the vehicle-end electrical connector 22 further includes a second conductive electrode column 224, two ends of the second conductive electrode column 224 are a second conductive output end and a second conductive input end, respectively; the second conductive electrode post 224 is disposed on the floating mounting base 2202 in a penetrating manner, the second conductive input end is located on the conductive input side 222, the second conductive output end is close to the floating connection side, and the second conductive electrode post 224 comprises a high-voltage pole assembly and a low-voltage pole assembly. Preferably, the vehicle-end electrical connector 22 further includes a second pole mounting seat 225, and the second conductive pole 224 is disposed through the second pole mounting seat 225; the floating mount 2202 has an accommodating cavity, and the second pole mount 225 is fixedly disposed in the accommodating cavity.

In this embodiment, the floating mount 2202 floats relative to the fixed mount 2201 in the axial direction and/or the radial direction of the second conductive electrode column 224, so as to ensure that the vehicle-end electrical connector 22 and the battery-end electrical connector 12 are electrically connected stably at all times during the driving of the vehicle.

As shown in fig. 15, the floating mount 2202 of the present embodiment is further provided with a second positioning member 226, the second positioning member 226 is located outside the accommodation chamber, and the second positioning member 226 is exposed to the surface of the conductive input side 222 of the floating mount 2202. Which is used to ensure that the second positioning member 226 contacts the first positioning member of the cell-end electrical connector 12 before the second conductive post 224 contacts the first conductive post of the cell-end electrical connector 12.

As shown in fig. 15, the vehicle-end electrical connector 22 in the present embodiment further includes a conductive connecting side 223, the conductive connecting side 223 is used for electrically connecting with the electric vehicle, the conductive connecting side 223 and the fixing side 221 are located on the same side or different sides, and the specific location of the conductive connecting side 223 depends on the actual situation such as the installation space of the battery accommodating cavity.

Since floating mount 2202 is relatively floating with respect to fixed mount 2201, and second conductive electrode post 224 is attached to floating mount 2202, it is preferable that the second conductive output terminal of second conductive electrode post 224 and conductive connection side 223 be electrically connected by a flexible connector to ensure that the connector between the second conductive output terminals of second conductive electrode post 224 is not torn during floating of floating mount 2202.

Specifically, the flexible connecting element in this embodiment includes a hollow connecting cavity, and two conductive connecting ends are connected to the connecting cavity and respectively connected to the second conductive output end and the conductive connecting side 223 of the second conductive electrode column 224; the two conductive connecting ends extend along the opposite directions, or the two conductive connecting ends are intersected at a preset angle in the extending direction; preferably, the predetermined angle is 90 °.

In this embodiment, the mounting seat body 220 further includes a sealing ring 2203, and the sealing ring 2203 has a ring of skirt; the sealing ring 2203 is coated at the joint of the floating installation seat 2202 and the fixed installation seat 2201 and is respectively connected with the floating installation seat 2202 and the fixed installation seat 2201 to form the fixed installation seat 2201 and the floating installation seat 2202; a skirt extending in a direction perpendicular to the surface of the conductive input side 222; the skirt is used to wrap the conductive output side 122 of the battery end electrical connector 12 to form a sealed space between the conductive output side 122 and the conductive input side 222 when the vehicle end electrical connector 22 is electrically connected to the battery end electrical connector 12 in example 2. The sealing ring 2203 ensures the sealing property when the vehicle-end electrical connector 22 and the battery-end electrical connector 12 are electrically connected.

In this embodiment, the vehicle-end electrical connector 22 is mounted on the top wall of the battery accommodating cavity, and the conductive input side 222 is kept facing the end of the battery pack 1 to be used with the battery-end electrical connector 12 described in embodiment 2, so as to ensure that the conductive input side 222 of the vehicle-end electrical connector 22 is not easily affected by the external environment. For example, when the electric vehicle is driven, the conductive input side 222 is not easily damaged by a bump, or when the electric vehicle is waded into water, the conductive input side 222 is not easily damaged by water immersion, so that stable connection with the battery-side electrical connector 12 is ensured, and power is stably supplied to the electric vehicle.

Example 5

As shown in fig. 17 to 19, this embodiment 5 discloses a liquid-cooled connection assembly 5000, the liquid-cooled connection assembly 5000 is used between a liquid supply device and a liquid-cooled pipeline, and the liquid-cooled connection assembly 5000 is used to achieve communication between the liquid supply device and the liquid-cooled pipeline, so that a cooling liquid in the liquid supply device circulates into the liquid-cooled pipeline and flows back into the liquid supply device, thereby achieving heat exchange in an area where the liquid-cooled pipeline is disposed.

Specifically, the liquid cooling connection assembly 5000 includes a first liquid cooling connection device 5100 and a second liquid cooling connection device 5200, the first liquid cooling connection device 5100 and the second liquid cooling connection device 5200 are used in a matched manner, one of them is provided as a connection joint of the liquid supply device, and the other is provided as a connection joint of the liquid cooling pipeline, and the liquid cooling connection assembly 5000 realizes the conduction of the liquid cooling pipeline while realizing the sealing connection, thereby allowing the cooling liquid to circulate.

As shown in fig. 17 and 18, the first liquid-cooled connection 5100 includes a first mount 5110 and a first connection valve 5120.

As shown in fig. 17 and 19, the second liquid-cooled connecting device 5200 includes a second mounting seat 5210 and a second connecting valve 5220.

The first mounting seat 5110 is a planar plate-shaped structure, specifically, a rectangular shape, and is used for mounting and fixing the first connection valve 5120.

The first connection valve 5120 is fixed to the first mounting seat 5110, and a flow passage is formed in the first connection valve 5120 to be opened and closed, and the flow direction of the flow passage is perpendicular to the plane direction of the first mounting seat 5110.

The second mounting seat 5210 is a planar plate-shaped structure, specifically, a rectangular shape, and is used for mounting and fixing the second connection valve 5220.

The second connection valve 5220 is fixed to the second mounting seat 5210, and an openable and closable flow passage is formed in the second connection valve 5220, and the flow direction of the flow passage is perpendicular to the planar direction of the second mounting seat 5210.

In practical use, one end of the first connection valve 5120 is connected to the liquid cooling pipeline, one end of the second connection valve 5220 is connected to the liquid supply device, and the flow passages in the first connection valve 5120 and the second connection valve 5220 are simultaneously opened through the matching connection between the first connection valve 5120 and the second connection valve 5220, so that the cooling liquid in the liquid supply device flows into the liquid cooling pipeline.

As shown in fig. 18, the first connection valve 5120 includes a first housing 5121 having a flow passage formed therein and a first spool 5122 telescopically and movably disposed in the flow passage to open and close the flow passage.

The first housing 5121 is an air structure, and has a first end and a second end arranged along a flow direction, the first end is an open structure, the second end is provided with a plurality of through holes, and a flow passage is formed between the open structure and the plurality of through holes.

The first spool 5122 includes a first core 5122a extending from a first end to a second end of the first housing 5121, and a valve plug 5122b telescopically and movably sleeved on one end of the first core 5122a corresponding to the first end and used for sealing the first core 5122a and the first housing 5121, wherein the valve plug 5122b telescopically moves to open or close the flow passage.

As shown in fig. 19, the second connection valve 5220 includes a second housing 5221 having a flow passage formed therein and a second valve element 5222 telescopically and movably disposed in the flow passage to open and close the flow passage.

The second housing 5221 is an air structure, and the outer diameter of the second housing 5221 is matched with the inner diameter of the first housing 5121, the second housing 5221 also has a first end and a second end arranged along the flow direction, the first end is an open structure and the second end is provided with a plurality of through holes, and a flow passage is formed between the open structure and the plurality of through holes.

One end of the second valve element 5222 is fixedly connected to the first end of the second housing 5221, and the other end is telescopically and movably connected to the second end of the second housing 5221 in the flow passage, and the second valve element 5222 is hermetically connected to the first end, and the corresponding flow passage is opened or closed by the telescopic movement of the second valve element 5222.

As shown in fig. 18, the first positioning member 5130 is provided on the first mounting seat 5110, and as shown in fig. 19, the second positioning member 5230 is provided on the second mounting seat 5210, so that when the first liquid-cooled connecting device 5100 is connected to the second liquid-cooled connecting device 5200, the first positioning member 5130 and the second positioning member 5230 are used for positioning, thereby ensuring the connection accuracy and improving the connection efficiency. Specifically, the first positioning member 5130 may have a specific structural form of two positioning holes respectively disposed at both sides of the first connection valve 5120, and the second positioning member 5230 may have a specific structural form of two positioning posts respectively disposed at both sides of the second connection valve 5220; the first positioning member 5130 and the second positioning member 5230 may be disposed oppositely, or may have other positioning structures to meet the positioning requirement.

As also shown in fig. 18, the end face of the first core 5122a is recessed at a predetermined depth position of the first end face of the first end portion, and a guide structure is provided in a region of the first shell 5121 higher than the end face of the first core 5122 a. The guide structure may be a guide slope, and of course, any other structure having a guide function may be used, so that the guide structure at the front end of the first core 5122a can achieve more precise butt joint of the second connection valve 5220 and the first connection valve 5120 while the first positioning member 5130 and the second positioning member 5230 are positioned, thereby improving the sealing connection efficiency.

When the first connection valve 5120 is connected to the second connection valve 5220, the edge of the second housing 5221 pushes the plug 5122b of the first valve element 5122 to retract the plug 5122b inwardly relative to the first valve element 5122a, and simultaneously the first valve element 5122a pushes the second valve element 5222 to retract the second valve element 5222 inwardly toward the second housing 5221, so that the flow passages of the first housing 5121 and the second housing 5221 are simultaneously opened, and the first housing 5121 and the second housing 5221 are hermetically connected due to the insertion of the second housing 5221 into the first housing 5121.

As shown in fig. 19, the second mounting seat 521 is further provided with a sealing ring 5240 surrounding the second connection valve 5220, after the first connection valve 5120 is connected with the second connection valve 5220, the sealing ring 5240 is pressed to keep the first mounting seat 5110 and the second mounting seat 5210 in a sealing connection, so that the sealing performance of the first connection valve 5120 and the second connection valve 5220 is ensured, and even if a slight leakage phenomenon occurs, the liquid cannot leak to threaten or influence other components in the use environment.

According to the liquid-cooling connection assembly 5000 of this embodiment 5, the first liquid-cooling connection device 5100 and the second liquid-cooling connection device 5200 are connected in a mating manner, so that the openable and closable connectivity and the sealing property of the flow passage are ensured, and the risk of coolant dripping and the like is avoided. The liquid cooling connection assembly 5000 may be applied to all environments where liquid cooling pipe connections are implemented, such as pipe connections between a battery pack of an electric vehicle and a liquid supply device on the vehicle.

In another embodiment, the sealing ring can be arranged on the first mounting seat, sealing connection can be achieved, and the sealing ring can be arranged at will according to actual requirements.

Example 6

As shown in fig. 24-30, where fig. 24 is a schematic view illustrating a battery pack 3 installed in a battery pack installation seat 4 at the bottom of an electric vehicle, the present embodiment discloses a battery pack 3 for changing power, which is installed at the bottom of an electric vehicle, such as on a battery pack installation portion 4, the battery pack 3 has an upper cover 31 and a lower case 32, a battery module (not shown in the figure) is disposed between the upper cover 31 and the lower case 32, the upper cover 31 and the lower case 32 are hermetically connected to form a sealed space for accommodating the battery module, a first hanging seat 41 is installed at the bottom of the electric vehicle, a first hanging member 33 is installed on the upper cover 31, the first hanging member 33 of the battery pack 3 is hung in the first hanging seat 41 on the electric vehicle in a vertical direction, and the first hanging member 33 is disposed in a middle region of the upper cover 31, especially in a middle position in a length direction of the battery pack 3.

Through with battery package 3 first hitching member 33 along vertical direction in first hitching seat 41, increased battery package 3 and the ascending of electric automobile bottom vertical side of hanging, increased the tie point between battery package 3 and the electric automobile on the one hand, improve the installation stability, on the other hand has restricted battery package 3 relative electric automobile's motion in vertical direction, improved the shock resistance of battery package 3 among the electric automobile driving process, especially keep away from both sides or the shock resistance of the middle zone of locking position all around.

In this embodiment, the first hanging member 33 includes a first mounting seat 332 and a movable member 331, and the movable member 331 is mounted on the upper cover 31 through the first mounting seat 332. The movable member 331 has a threaded portion or a threaded hole, and is matched with the threaded portion or the threaded hole in the first hooking seat 41 to hook the battery pack 3, wherein the threaded portion or the threaded hole is disposed on a portion of the movable member 331 beyond the upper cover 31, and specifically, the movable member 331 may be a threaded member such as a screw, a nut, or the like. The movable piece 331 is connected with the first hanging seat 41 through a threaded part, so that the stability of connection between the battery pack 3 and the electric automobile is improved, and the generation of large relative displacement is avoided.

In other embodiments, the movable member 331 may also have a protrusion or a recess, which is engaged with the recess or the protrusion in the first hanging seat 41 to hang the battery pack 3. Wherein, the part of the movable piece 331 beyond the upper cover 31 has a convex part or a concave part. Through the cooperation of the convex portion and the concave portion, the movable member 331 is connected with the first hanging seat 41 in a clamping manner, and the hanging stability is improved.

In other embodiments, the movable member 331 and the first hanging seat 41 cooperate with each other in any one of a screwing manner, a clamping manner, a buckling manner, an inserting manner, a hooking manner and a joggling manner to realize the hanging of the battery pack 3.

In this embodiment, the top of the movable element 331 has a guiding portion 3312 for guiding the movable element 331 into the first hanging seat 41, and the guiding portion 3312 is an inclined plane or an arc surface. The top of the movable element 331 is provided with a guide portion 3312, and when the movable element 331 and the first hooking base 41 have a slight position deviation, the guide portion 3312 of the movable element 331 is partially contacted with the first hooking base 41, so as to guide the first hooking member 33 to enter the first hooking base 41.

In this embodiment, the first mounting seat 332 includes a first base 3321 respectively connected to the upper cover 31 and the lower case 32, the first base 3321 is detachably connected to the upper cover 31, for example, the first base 3321 can be connected to the lower case 32 by any one of screwing, clamping, fastening, inserting, hooking, and joggling, and the first base 3321 is fixedly connected to the upper cover 31, for example, the first base 3321 can be connected to the lower case 32 by welding. A sealing member, such as a gasket, is disposed between the first base 3321 and the upper cover 31 to achieve a sealing connection between the upper cover 31 and the first base 3321, so as to prevent rainwater from entering the battery pack 3 through a gap between the first base 3321 and the upper cover 31.

In this embodiment, the first base 3321 has a first receiving cavity 3321a extending to the outside of the lower box 32 along the vertical direction, so as to form a hanging operation space. The inner side of the lower case 32 is further provided with a reinforcing plate 321 at a first base 3321, the first base 3321 connects the reinforcing plate 321 and the lower case 32 in sequence, the plurality of first bases 3321 are provided, and the reinforcing plates 321 are continuously provided at the plurality of first bases 3321.

In this embodiment, the first base 3321 has a first receiving cavity 3321b disposed above the first receiving cavity 3321a and communicated with the first receiving cavity 3321a, and the movable member 331 is disposed in the first receiving cavity 3321 b. The cross section of the first accommodating chamber 3321b in the horizontal direction is smaller than the cross section of the first accommodating chamber 3321a in the horizontal direction.

By arranging the first accommodating cavity 3321a at the bottom of the first mounting seat 332, an external driving mechanism can enter the first mounting seat 332 to apply a driving force to the movable element 331, so that the movable element 331 rotates or vertically moves upwards to enter the first hanging seat 41, for example, the movable element 331 is driven to move by the electric rotation of the power switching device.

In this embodiment, the bottom of the movable member 331 is provided with a position-limiting portion 3311, and the position-limiting portion 3311 abuts against the top surface of the first accommodating cavity 3321a to limit the movable portion from moving upward and separating from the first base 3321; the inner wall of the first receiving cavity 3321a is provided with a collar 3321c for limiting the downward movement of the position-limiting portion 3311 away from the first base 3321.

In this embodiment, the first mounting seat 332 further includes a second base 3322 disposed on a top surface of the first base 3321, the upper cover 31 has an opening for the second base 3322 to pass through, and the second base 3322 has a passage for the movable element 331 to pass through.

In the present embodiment, the battery pack 3 includes a side wall portion 34, and at least two side surfaces of the side wall portion 34 are vertically provided with lock shafts 35 for locking the battery pack 3 in a locking mechanism on the electric vehicle. The lower case 32 includes a bottom wall portion and a side wall portion 34, the bottom wall portion and the upper cover 31 are disposed opposite to each other, the side wall portion 34 is disposed between the bottom wall portion and the upper cover 31, and the side wall portion 34 is vertically provided with lock shafts 35 along at least two sides of the battery pack 3 in the length direction thereof for locking the battery pack 3 in a lock mechanism of the electric vehicle. The locking mechanism in this embodiment is described by taking the locking device in chinese patent publication No. CN106427514A as an example, but the locking mechanism of the present invention is not limited to the specific structure in the above prior art, and can be applied to other locking mechanisms of bottom charging type.

In other embodiments, the battery pack 3 further includes a first locking member for locking the battery pack 3 to a bolt-type locking mechanism on the electric vehicle, and/or a second locking member for locking the battery pack 3 to a bead-expanding-type locking mechanism on the electric vehicle.

In other embodiments, the battery pack 3 is provided with a plurality of first hanging members 33, at least one row of the plurality of first hanging members 33 is a straight line, and the plurality of first hanging members 33 can be connected into a row of first hanging members 33 through a connecting member. A plurality of first hitching elements 33 are connected through the connecting elements, so that the first hitching elements 33 are prevented from rotating per se to cause position change.

In this embodiment, the battery pack further includes a battery-end electrical connector 37 provided on the upper cover, and the battery-end electrical connector 37 includes all the features of embodiment 1.

In other embodiments, the battery pack further comprises a battery end electrical connector 37 provided to the upper cover, the battery end electrical connector comprising all of the features of example 2.

In other embodiments, the battery pack further comprises a liquid-cooled connector 38 disposed on a side wall or lid of the battery pack, the liquid-cooled connector including all of the features of example 5.

Example 7

As shown in fig. 31 to 37, wherein fig. 31 is a schematic diagram of a battery pack 8 mounted on a battery pack mounting portion 9 at the bottom of an electric vehicle, the present embodiment provides a battery pack 8, the battery pack 8 has an upper cover 81 and a lower case 82, a battery module is disposed between the upper cover 81 and the lower case 82, the upper cover 81 is mounted with a second hanging connector 83 for moving along a vertical direction to a position corresponding to a second hanging seat 91 at the bottom of the electric vehicle and moving along a horizontal direction into the second hanging seat 91, so that the battery pack 8 is hung in the second hanging seat 91 on the electric vehicle. The first hanging piece is arranged in the middle area of the upper cover 81, and the second hanging piece 83 is arranged in the middle of the battery pack 8 in the length direction.

Through second articulate piece 83 along vertical direction articulate in second articulate seat 91, increased the hanging in the vertical side in battery package 8 and electric automobile bottom, increased the tie point between battery package 8 and the electric automobile on the one hand, improve installation stability, on the other hand has restricted the motion of battery package 8 relative electric automobile in vertical direction, has improved the shock resistance of electric automobile in-process battery package 8 that traveles. Especially the shock resistance of the central area away from the two-sided or peripheral locking position.

In this embodiment, the second hanging member 83 includes a connecting portion 831 and a hanging portion 832, one end of the connecting portion 831 is mounted on the upper cover 81, the other end of the connecting portion 831 is connected to the hanging portion 832, the hanging portion 832 is located above the upper cover 81, and the second hanging member 83 is hung in the second hanging seat 91 through the hanging portion 832. The outer wall of the connecting portion 831 is provided with a threaded portion 8312, and is connected and fixed to the upper cover 81 through the threaded portion 8312. The outer wall of the connecting portion 831 has a limiting portion 8311 extending outward from the outer wall and protruding for the second hanging piece 83 to abut against the upper cover 81, and the limiting portion 8311 is a nut and is sleeved on the threaded portion 8312 of the connecting portion 831.

In the present embodiment, the hanging portion 832 extends and protrudes from the connecting portion 831 in a direction away from the connecting portion 831; the hanging portion 832 protrudes from the connecting portion 831 in a horizontal direction. The hanging portion 832 is perpendicular to the connecting portion 831, the hanging portion 832 is integrally formed with the connecting portion 831, or the hanging portion 832 is detachably connected with the connecting portion 831. Connecting portion 831 is a connecting rod that extends along the vertical direction, and hitching portion 832 is a hitching rod that extends along the horizontal direction, and the hitching rod is cylindric. The hanging part 832 and the second hanging seat 91 are mutually matched in any one of the screw joint, the clamping joint, the buckling joint, the insertion joint, the hooking joint and the joggling joint to realize the hanging joint of the battery pack 8.

In this embodiment, the battery pack 8 further includes a second mounting seat 84, and the second hanging member 83 is mounted to the upper cover 81 through the second mounting seat 84. The second mounting seat 84 is provided between the upper cover 81 and the lower case 82. The second mounting seat 84 is detachably connected with the upper cover 81, and the second mounting seat 84 is fixedly connected with the lower box 82. A sealing member is provided between the second mounting seat 84 and the upper cover 81.

In this embodiment, the second mounting seat 84 includes a third receiving cavity 841 for providing an operation space, and/or a fourth receiving cavity 842 for receiving the connecting portion 831. A collar 843 is disposed in the third accommodating chamber 841 for limiting the second hanging piece 83 from falling off from the second mounting seat.

In the present embodiment, the battery pack 8 includes a side wall portion 85, and at least two side surfaces of the side wall portion 85 are vertically provided with lock shafts 86 for locking the battery pack 8 in a locking mechanism on the electric vehicle. The lower case 82 includes a bottom wall portion and a side wall portion 85, the bottom wall portion and the upper cover 81 are disposed opposite to each other, the side wall portion 85 is disposed between the bottom wall portion and the upper cover 81, and the side wall portion 85 is vertically provided with lock shafts 86 along at least two sides in the length direction of the battery pack 8 for locking the battery pack 8 in a lock mechanism on the electric vehicle. The locking mechanism in this embodiment is described by taking the locking device in chinese patent publication No. CN106427514A as an example, but the locking mechanism of the present invention is not limited to the specific structure in the above prior art, and can be applied to other locking mechanisms of bottom charging type.

In other embodiments, the battery pack 8 further includes a first locking member for locking the battery pack 8 to a bolt-type locking mechanism on the electric vehicle and/or a second locking member for locking the battery pack 8 to a bead-expanding type locking mechanism on the electric vehicle.

In other embodiments, the battery pack 8 is provided with a plurality of second hanging parts 83, and at least one row of the plurality of second hanging parts 83 is linear; the plurality of second hanging pieces 83 are connected to form a row of second hanging pieces 83 by a connecting piece.

In this embodiment, the battery pack 8 further includes a battery-side electrical connector 87 provided on the upper cover 81, and the battery-side electrical connector 87 includes all the features of embodiment 1.

In other embodiments, the battery pack 8 further includes a battery-end electrical connector 87 provided to the upper cover 81, the battery-end electrical connector 87 including all of the features of example 2.

In other embodiments, the battery pack 8 further includes a liquid-cooled connector 88 disposed on a side wall or top cover 81 of the battery pack 8, and the liquid-cooled connector 88 includes all of the features of example 5.

Adopt the second to hang the connecting piece 83 in this embodiment with battery package 8 articulate in second articulate seat 91, moreover, the steam generator is simple in structure, cooperate with the locking motion process of the lock axle 86 of the battery package 8 left and right sides in locking mechanism, when accomplishing the locking of lock axle 86 in locking mechanism, second hang the connecting piece 83 and reach the articulate point in second articulate seat 91, and set up a plurality of second through the intermediate position at upper cover 81, increased the articulate of battery package 8 with the electric automobile bottom, restricted battery package 8 relative electric automobile's motion in vertical direction, improved electric automobile's shock resistance. Meanwhile, the side face of the second hanging seat 91 is hung, the second hanging piece 83 is in clearance fit with the second hanging seat 91, the fault tolerance is good, the flexibility is good, the battery pack 8 is allowed to have a certain amount of movement in the installation part, the over-positioning between the battery pack 8 and the electric automobile is avoided, and the interaction force is large.

Example 8

As shown in fig. 38 to 41, wherein fig. 38 is a schematic view illustrating that a battery pack 3 is mounted on a battery pack mounting portion 4 at the bottom of an electric vehicle, in this embodiment, a battery pack mounting portion 4 is provided at the bottom of the electric vehicle for mounting the battery pack 3 in embodiment 6, a first hanging seat 41 is provided on the battery pack mounting portion 4, and the first hanging seat 41 is provided on a bottom plate of the electric vehicle for cooperating with the first hanging member 33 in embodiment 1 to hang the battery pack 3 in a vertical direction.

In this embodiment, the first hanging seat 41 is provided with a threaded hole or a threaded portion extending along the vertical direction, and is used for matching with the threaded portion or the threaded hole on the first hanging piece 33 so as to guide the first hanging piece 33 to enter the first hanging seat 41 for hanging.

In other embodiments, a concave portion or a convex portion is provided in the first hanging seat 41 for engaging with a convex portion or a concave portion of the first hanging member 33 to hang the battery pack 3.

In other embodiments, the first hitching section 41 includes a floating seat 411, the floating seat 411 is floatingly mounted on the bottom of the electric vehicle, and a threaded hole, a threaded portion, a recessed portion or a protruding portion is provided on the floating seat 411. The first hitching seat 41 further comprises a fixed seat 412, and the floating seat 411 is floatingly mounted on the fixed seat 412. Specifically, the floating seat 411 and the fixing seat 412 are connected through an elastic member 413, the fixing seat 412 has a space for accommodating the floating seat 411 and the elastic member 413, and the floating seat 411 may be a nut. Through the arrangement of the floating seat 411, the first hanging part 33 can have a certain floating amount relative to the bottom of the electric automobile after being hung, and is prevented from being positioned too far.

In this embodiment, the battery pack mounting portion 4 further includes a locking mechanism 42 for engaging with a locking shaft on the side wall 431 of the battery pack 3 to lock the battery pack 3 to the electric vehicle. The locking mechanism 42 has an open slot extending in the vertical direction and a locking slot extending in the horizontal direction, the open slot is communicated with the locking slot, the lock shaft enters the upper in-place position in the locking slot from the open slot in the vertical direction, and when the lock shaft moves to the locking position in the locking slot, the first hanging piece 33 moves to the hanging position aligned with the first hanging seat 41 in the vertical direction. The locking mechanism 42 is installed at the bottom of the electric automobile through a quick-change bracket 43, the locking mechanism 42 is arranged on the side wall 431, facing the battery pack 3, of the quick-change bracket 43, and the quick-change bracket 43 is annular or double-sided strip-shaped. The first hitching base 41 is provided at an intermediate position on the quick-change holder 43 side where the locking mechanism 42 is provided at the bottom. The locking mechanism in this embodiment is described by taking the locking device in chinese patent publication No. CN106427514A as an example, but the locking mechanism of the present invention is not limited to the specific structure in the above prior art, and can be applied to other locking mechanisms of bottom charging type.

In other embodiments, the first hanging seat 41 and the first hanging member 33 are engaged with each other by any one of screwing, clipping, fastening, inserting, hooking, and joggling to realize the hanging of the battery pack 3.

In other embodiments, the battery pack mounting portion 4 further includes a bolt-type locking mechanism 42 or a bead-expansion-type locking mechanism 42 for locking the battery pack 3 to the electric vehicle, for locking the first locking member and the second locking member as in embodiment 1, respectively.

In this embodiment, the battery pack mounting portion 4 further includes a vehicle-end electrical connector 44 provided at the bottom of the electric vehicle, and the vehicle-end electrical connector 44 includes all the features of embodiment 3.

In other embodiments, the battery pack mounting portion 4 further includes a battery-end electrical connector provided at the bottom of the electric vehicle, the battery-end electrical connector including all the features of example 4.

In other embodiments, the battery pack mounting portion 4 further includes a liquid-cooled connecting device 45 disposed at the bottom of the electric vehicle, and the liquid-cooled connecting device 45 includes all the features of embodiment 5.

Example 9

As shown in fig. 42-45, wherein fig. 42 is a schematic view of a battery pack mounting portion 9 for mounting a battery pack 8 on the bottom of an electric vehicle, the present embodiment provides a battery pack mounting portion 9 for mounting the battery pack 8 in embodiment 7 on the bottom of the electric vehicle, a second hanging seat 91 is provided on the battery pack mounting portion 9, and cooperates with the second hanging member 83 in embodiment 2 to hang the battery pack 8 on the electric vehicle along a horizontal direction.

In this embodiment, the side portion 911 of the second hooking base 91 has a side opening 9111 into which the second hooking member 83 enters and a hooking groove 912 extending inward in the horizontal direction from the side opening 9111, and the second hooking member 83 moves in the vertical direction to a first position corresponding to the side opening 9111 and enters a hooking point in the hooking groove 912 in the horizontal direction from the first position. The side opening 9111 is provided for facilitating the entry of the second hanging member 83 into the second hanging seat 91 during the horizontal movement of the battery pack 8.

In the present embodiment, the side portion 911 includes an upper side portion 9112 located above the opening 9131 and a lower side portion 9113 located below the opening 9131, and the upper side portion 9112 is connected to the top wall 9123 of the hitch groove by an arc-shaped guide surface, and the lower side portion 9113 is connected to the bottom wall 9121 of the hitch groove by an arc-shaped guide surface. The hooking portion 832 is guided into the hooking groove 912 by the guide surface. The lower side portion 9113 is disposed obliquely with respect to the bottom of the second hooking seat 91 for guiding the second hooking member 83 to the first position corresponding to the side opening 9111.

In the present embodiment, the second hanging piece 83 has a connecting portion 831 and a hanging portion 832, the hanging portion 832 is disposed on the top of the connecting portion 831, and the second hanging piece 83 is hung on a hanging point on the bottom wall 9121 of the hanging groove through the hanging portion 832. The hanging groove 912 is in clearance fit with the hanging part 832, and when the hanging part 832 is hung on a hanging point on the bottom wall 9121 of the hanging groove, the clearance between the hanging part 832 and the top wall 9123 of the hanging groove is more than 0 and less than 0.1 mm. The hanging groove 912 further comprises a side wall 9122 between the bottom wall 9121 and the top wall 9123, and when the hanging portion 832 is hung on a hanging point on the bottom wall 9121 of the hanging groove, a gap between the hanging portion 832 and the side wall 9122 of the hanging groove is larger than 2 mm. The hanging groove 912 further comprises a side wall 9122 positioned between the bottom wall 9121 and the top wall 9123, the side wall 9122 is an arc-shaped side wall 9122, the top of the arc-shaped side wall 9122 is tangent to the top wall 9123, and the bottom of the arc-shaped side wall 9122 is tangent to the bottom wall 9121. The side walls 9122 of the hooking groove 912 are shaped to fit a cylindrical hooking rod. The second hooking seat 91 has a receiving groove 913 communicating with the hooking groove 912, and the connecting portion 831 is partially received in the receiving groove 913 when the hooking portion 832 is located at the hooking point in the hooking groove 912. When the hooking portion 832 is hooked to the hooking point in the hooking groove 912, the gap between the connecting portion 831 and the receiving groove 913 is greater than 2 mm. The second hanging piece is in clearance fit with the second hanging seat 91, so that the second hanging piece 83 can conveniently enter the second hanging seat 91. The receiving groove opening 9131 has a guide surface for guiding the connecting portion 831 into the receiving groove 913.

In the present embodiment, the top of the second hitching seat 91 is provided with a mounting hole 914 for mounting the second hitching seat 91 on the bottom of the electric vehicle.

In this embodiment, the battery pack mounting portion 9 further includes a quick-change bracket 92, a locking mechanism 93 is arranged on the quick-change bracket 92, the locking mechanism 93 has an opening 9131 slot extending along the vertical direction and a locking slot extending along the horizontal direction, the locking slot is used for inserting and locking a lock shaft on the battery pack 8, the opening 9131 slot is communicated with the locking slot, the lock shaft enters the locking slot from the opening 9131 slot along the vertical direction, the lock shaft moves to the locking position in the locking slot, and the hanging portion 832 reaches a hanging point in the hanging slot 912. The quick-change holder 92 is ring-shaped or double-sided strip-shaped. The second hitching base 91 is provided at an intermediate position on the quick-change holder 92 side where the locking mechanism 93 is provided at the bottom. The locking mechanism in this embodiment is described by taking the locking device in chinese patent publication No. CN106427514A as an example, but the locking mechanism of the present invention is not limited to the specific structure in the above prior art, and can be applied to other locking mechanisms of bottom charging type.

In other embodiments, the battery mounting portion further includes a bolt-type locking mechanism 93 and an expansion bead-type locking mechanism 93 for locking the battery pack 8 on the electric vehicle, and the bolt-type locking mechanism 93 and the expansion bead-type locking mechanism 93 are used for locking the first locking member and the second locking member in example 2, respectively.

In this embodiment, the battery pack mounting portion 9 further includes a vehicle-end electrical connector 94 provided at the bottom of the electric vehicle, and the vehicle-end electrical connector 94 includes all the features of embodiment 3.

In other embodiments, the battery pack mounting portion 9 further includes a battery-end electrical connector provided at the bottom of the electric vehicle, the battery-end electrical connector including all the features of example 4.

In other embodiments, the battery pack mounting portion 9 further includes a liquid cooling pipe connection device disposed at the bottom of the electric vehicle, and the liquid cooling pipe connection device includes all the features of embodiment 5.

Example 10

As shown in fig. 20, the present embodiment 10 discloses a battery pack 6000, and the battery pack 6000 is used in an electric vehicle for supplying power to the electric vehicle. And the battery pack 6000 has the first liquid-cooled connecting device 5100 or the second liquid-cooled connecting device 5200 of the structure in embodiment 5 described above, and the first liquid-cooled connecting device 5100 or the second liquid-cooled connecting device 5200 is provided as a battery-side liquid-cooled connecting device on the battery pack 6000. In this battery-side liquid-cooling connection device, the first and second mounting

seats

5110 and 5210 and the first and

second connection valves

5120 and 5220 are collectively referred to as a mounting seat and a connection valve.

When the battery pack 6000 is installed on the electric automobile, the liquid cooling connecting device at the battery end is communicated with a liquid supply device which is used for providing cooling liquid on the electric automobile, so that the cooling liquid is introduced into a liquid cooling pipeline in the battery pack 6000, heat exchange is conveniently carried out on a battery module which is filled in the battery pack 6000 and is discharged, and a proper working temperature environment is provided for the battery pack 6000. Here, the liquid supply device on the electric vehicle is connected to the second liquid-cooled connecting device 5200 or the first liquid-cooled connecting device 5100 through a liquid-cooled pipe, which matches the battery-side liquid-cooled connecting device on the battery pack 6000. That is, the first liquid-cooled connecting device 5100 or the second liquid-cooled connecting device 5200 is connected between the battery pack 6000 and the electric vehicle, respectively, and the first liquid-cooled connecting device and the second liquid-cooled connecting device can be arranged interchangeably.

Specifically, the mount pad sets up on the top surface or the side of battery package 6000, and the connecting valve is fixed in on the mount pad, and the plane direction of mount pad is parallel with the plane direction of battery package 6000 to the plane direction of mount pad is perpendicular mutually with the circulation direction of the circulation passageway of connecting valve, thereby realizes the intercommunication with electric automobile liquid cooling pipeline behind battery package 6000 with the direction from bottom to top installation to electric automobile. One end of the connecting valve, which is positioned at the inner side of the battery pack 6000, is connected with the liquid cooling pipeline in the battery pack 6000, and the other end of the connecting valve is used for being connected with the liquid supply device. The liquid supply device refers to a liquid supply device for supplying cooling liquid in the electric automobile or a liquid supply device arranged on a battery charging rack.

Here, the battery pack 6000 is detachably attached to the bottom of the electric vehicle by a locking device including a plurality of locking shafts fixed to both sides of the battery pack 6000 and a locking mechanism provided on the vehicle and having locking grooves extending in a vertical direction. When the battery pack 6000 rises from the bottom of the electric automobile to the locking shaft on the battery pack 6000 to be matched with the locking groove of the locking device, the liquid cooling connecting device of the liquid supply device of the electric automobile is hermetically connected with the battery end liquid cooling connecting device on the battery pack 6000, and the flow passage of the connecting valve is opened so as to be communicated with each other.

According to the battery pack 6000 of the embodiment 10, in the process of installing the battery pack 6000 at the bottom of the electric vehicle, the battery pack 6000 is lifted from bottom to top, and as the battery pack 6000 is lifted continuously, the liquid cooling connecting device on the liquid supply device of the electric vehicle and the corresponding connecting valve of the battery end liquid cooling connecting device of the battery pack 6000 are abutted gradually from the initial contact state to the sealing connection state, and the circulation channel is opened; when battery package 6000 upwards lifted to the right place, the locking shaft was locked in the locked groove that corresponds promptly, and the last connecting valve of battery package 6000 also communicates with the confession liquid device on the electric automobile is sealed simultaneously, can realize the sealed intercommunication of liquid cooling pipeline when realizing the installation of battery package 6000, and the installation connection process is simple high-efficient.

According to the scheme of this embodiment 10, the installation seat is fixed relative to the battery pack 6000 in a horizontal manner, and the flow direction of the flow channel of the connection valve is vertically arranged with respect to the installation seat, so that the liquid cooling connection device of the battery pack 6000 can be quickly and hermetically communicated with the liquid cooling pipeline of the electric vehicle while the battery pack is lifted upwards to the right position.

In another embodiment, the battery pack 6000 has all the features of the above embodiments, and further includes a moving member provided on the mounting seat, and the connection valve is movably disposed on the moving member and drives the connection valve to move in a reverse direction with respect to the moving member when the locking shaft moves horizontally along the L-shaped locking groove. This scheme is based on battery package 6000 can dismantle the bottom of connecting in electric automobile through locking means, and locking means is including the locking mechanism who has L type locked groove and fix the locking axle on battery package 6000 side, and the locking axle further horizontal migration to battery package 6000 locking after the L type locked groove vertical migration targets in place succeeds, and battery package 6000 realizes the locking by further horizontal migration after the vertical migration promptly. And when the battery pack 6000 rises to the proper position, the liquid cooling connecting device of the battery pack 6000 is in sealed communication with the liquid cooling connecting device of the electric automobile. Therefore, when the battery pack 6000 moves horizontally, the liquid cooling connecting device of the battery pack 6000 and the liquid cooling connecting device of the electric automobile are kept in a fixed position through the moving part, namely, the connecting valve of the battery pack 6000 moves in the opposite direction relative to the moving part, and the accuracy, the sealing performance and the connectivity of liquid cooling connection are guaranteed.

In another embodiment, the battery pack 6000 has all the features of the above embodiments, and further includes: the number of the battery end liquid cooling connecting devices is two, wherein one of the battery end liquid cooling connecting devices is used as an input part of cooling liquid, and the other battery end liquid cooling connecting device is used as an output part of the cooling liquid. The arrangement mode of the liquid cooling pipeline in the battery pack 6000 is more flexible by separately arranging the input part and the output part of the liquid cooling connecting device. Preferably, the two battery end liquid-cooled connecting devices are respectively arranged at two opposite ends of the battery pack 6000. The input part and the output part of the liquid cooling connecting device are arranged at the two ends of the battery pack 6000, so that the layout of liquid cooling pipelines in the battery pack 6000 can be optimized, the occupied space of the liquid cooling pipelines is reduced, and the heat exchange efficiency is improved.

In another embodiment, the battery pack 6000 has all of the features of the embodiments described above, and also has battery end electrical connectors. Wherein the fixed side of the battery end electrical connector is connected to the top or end of the battery pack body, the end being adjacent to both sides respectively, the battery end electrical connector having all or part of the features of the battery end electrical connector for battery change shown in

embodiment

1 or 2. In another embodiment, the battery end liquid-cooling connecting device and the battery end electric connector can be arranged on the same fixed seat.

In another embodiment, the battery pack 6000 has all the features of the above-described embodiments and further includes a battery hanger. Wherein the battery hanging member is mounted on the top of the battery pack body, the battery hanging member having all or part of the features of the first hanging member in the battery pack shown in embodiment 6, or the battery hanging member having all or part of the features of the second hanging member in the battery pack shown in embodiment 7.

In another embodiment, the battery pack 6000 has all the features of the above embodiments, and further has a plurality of locking shafts 6200, the locking shafts are axially and vertically connected to two opposite sides of the battery pack body 6100, and the locking shafts 6200 are used to cooperate with a locking mechanism on the electric vehicle to lock the battery pack.

Example 11

As shown in fig. 21, this embodiment 11 discloses another battery pack 6000, and the battery pack 6000 differs from the battery pack 6000 of embodiment 10 only in the arrangement position of the liquid-cooled connecting device at the battery end, and other structures and functions are completely the same, and the description of the same structures and functions is omitted.

In the battery end liquid cooling connection device of the battery pack 6000 of this embodiment 11, the mounting seat is also disposed on the top surface or the side surface of the battery pack 6000, but the plane direction of the mounting seat and the plane direction of the battery pack 6000 are perpendicular to each other, and the plane direction of the mounting seat is perpendicular to the flow direction, that is, the flow direction of the flow channel is parallel to the plane direction of the battery pack 6000, so that the liquid cooling pipeline of the electric vehicle is communicated with the battery pack 6000 after the battery pack 6000 is mounted to the electric vehicle in the horizontal direction.

Here, the battery pack 6000 is detachably attached to the bottom of the electric vehicle by a locking device including a locking mechanism having an L-shaped locking groove and a plurality of locking shafts disposed at both sides of the battery pack 6000. The battery pack 6000 is lifted in place by the bottom of the electric automobile and further moves along the length direction of the automobile body of the electric automobile, namely moves vertically and horizontally along the direction of the L-shaped locking groove until the battery pack 6000 is successfully locked when a locking shaft on the battery pack 6000 is matched with the locking groove of the locking mechanism. When the battery pack 6000 is vertically lifted in place, the liquid cooling connecting device at the battery end is just aligned with the liquid supply device of the electric automobile, and along with the horizontal movement of the battery pack 6000, the connecting device of the liquid cooling pipeline of the liquid supply device of the electric automobile is communicated with the connecting valve on the battery pack 6000 and opens the circulation channel of the connecting valve.

According to the battery pack 6000 of this embodiment 11, in the process of installing the battery pack 6000 at the bottom of the electric vehicle, after the battery pack 6000 is vertically lifted to the place, along with the continuous horizontal movement of the battery pack 6000, the liquid cooling connecting device on the liquid supply device of the electric vehicle and the connecting valve of the battery pack 6000 are gradually abutted to the sealing connection from the initial contact state and open the circulation passage, so that the sealing connection of the liquid cooling pipeline can be realized while the installation of the battery pack 6000 is realized, and the installation and connection process is simple and efficient.

According to the scheme of this embodiment 11, the mounting seat is fixed to the battery pack 6000 in a vertical manner, and the flow direction of the flow channel of the connection valve is perpendicular to the mounting seat, that is, the flow direction of the flow channel of the connection valve is parallel to the horizontal direction of the battery pack 6000, so that the liquid cooling connection device of the connection valve can be quickly and hermetically communicated with the liquid cooling pipeline of the electric vehicle while the battery pack 6000 is lifted to the right position.

embodiment

Example 12

As shown in fig. 22, the present embodiment 12 discloses a battery mounting portion 7000, and the battery mounting portion 7000 is used in an electric vehicle for mounting a battery pack 6000 on the electric vehicle. The battery mounting portion 7000 has the first liquid-cooled connecting device 5100 or the second liquid-cooled connecting device 5200 described in embodiment 5 above, and the first liquid-cooled connecting device 5100 or the second liquid-cooled connecting device 5200 is provided as a vehicle-side liquid-cooled connecting device on the battery mounting portion 7000. In this vehicle-side liquid-cooling connection device, the first and second mounting

seats

5110 and 5210 and the first and

second connection valves

When battery installation portion 7000 is connected with battery package 6000, car end liquid cooling connecting device is sealed connected state promptly with the last battery end liquid cooling connecting device that battery package 6000 to in the liquid cooling pipeline that lets in battery package 6000 that supplies liquid device to provide the coolant liquid on the electric automobile, so that carry out the heat exchange with the battery module of the interior charging and discharging process of battery package 6000, provide suitable operating temperature environment for battery package 6000. Here, the liquid cooling pipe on the battery pack 6000 is connected with the second liquid cooling connection device 5200 or the first liquid cooling connection device 5100 that matches the vehicle-side liquid cooling connection device on the electric vehicle. That is, the first liquid-cooled connecting device 5100 or the second liquid-cooled connecting device 5200 is connected between the battery pack 6000 and the battery mounting portion of the electric vehicle, respectively, and the first liquid-cooled connecting device and the second liquid-cooled connecting device can be provided interchangeably.

Specifically, the mount pad sets up on electric automobile holds the top surface or the side of chamber, and the connecting valve is fixed in on the mount pad, and the plane direction of mount pad is parallel with the plane direction of battery package 6000 to the plane direction of mount pad is perpendicular with the circulation direction of the circulation passageway of connecting valve mutually, that is to say, the circulation direction of circulation passageway is perpendicular with the plane direction at electric automobile's automobile body length direction place mutually, thereby realizes the intercommunication with electric automobile liquid cooling pipeline behind battery package 6000 is installed to electric automobile with the direction from bottom to top.

Here, the battery pack 6000 is detachably attached to the bottom of the electric vehicle by a locking device including a plurality of locking shafts fixed to both sides of the battery pack 6000 and a locking mechanism provided on the vehicle and having locking grooves extending in a vertical direction. When the battery pack 6000 rises from the bottom of the electric automobile to the locking shaft on the battery pack 6000 to be matched with the locking groove of the locking device, the automobile end liquid cooling connecting device of the electric automobile is communicated with the battery end liquid cooling connecting device on the battery pack 6000, and the circulation channel of the connecting valve is opened.

According to the battery mounting part of the embodiment 12, in the process of mounting the battery pack 6000 on the bottom of the electric vehicle, the battery pack 6000 is lifted from bottom to top, and as the battery pack 6000 is lifted continuously, the vehicle-end liquid-cooled connecting device on the electric vehicle and the battery-end liquid-cooled connecting device of the battery pack 6000 are abutted to be in sealed connection gradually from the initial contact state and a circulation passage is opened; when battery package 6000 upwards lifts to target in place, the lock shaft is locked in the locked inslot that corresponds promptly, and car end liquid cooling connecting device also seals the intercommunication simultaneously with battery end liquid cooling connecting device, can realize the sealed intercommunication of liquid cooling pipeline when realizing the installation of battery package 6000, and the installation connection process is simple high-efficient.

According to the scheme of this embodiment 12, the installation seat is fixed relative to the electric vehicle in a horizontal manner, and the flow direction of the flow channel of the connection valve is vertically arranged with respect to the installation seat, so that the connection valve can be quickly and hermetically communicated with the liquid cooling connection joint of the battery pack 6000 while the battery pack 6000 is lifted upwards to the position.

In another embodiment, the battery mounting portion 7000 has all the features of the above embodiments, and further includes a moving component disposed on the mounting seat, wherein the moving component is used for driving the mounting seat to move integrally, and driving the mounting seat and the connection valve to move integrally and synchronously when the lock shaft moves horizontally along the L-shaped lock slot. This scheme is based on battery package 6000 can dismantle the bottom of connecting in electric automobile through locking means, and locking means is including the locking mechanism who has L type locked groove and fix the locking axle on battery package 6000 side, and the locking axle further horizontal migration to battery package 6000 locking after the L type locked groove vertical migration targets in place succeeds, and battery package 6000 realizes the locking by further horizontal migration after the vertical migration promptly. And when the battery pack 6000 rises to the proper position, the battery end liquid cooling connecting device of the battery pack 6000 is in sealed communication with the vehicle end liquid cooling connecting device of the electric vehicle. Therefore, when the battery pack 6000 moves horizontally, the mobile component drives the vehicle-end liquid cooling connecting device to move integrally, so that the liquid cooling connecting device of the battery pack 6000 and the liquid cooling connecting device of the electric vehicle are kept unchanged in position, and the sealing performance and the connectivity of liquid cooling connection are guaranteed.

In another embodiment, the battery mounting portion 7000 has all the features of the above embodiments, and further has: the number of the vehicle-end liquid cooling connecting devices is two, wherein one of the vehicle-end liquid cooling connecting devices is used as an input part of cooling liquid, and the other vehicle-end liquid cooling connecting device is used as an output part of the cooling liquid. The input part and the output part of the liquid cooling connecting device are separately arranged, so that the liquid cooling light path on the electric automobile is more flexible, and the liquid cooling pipeline arrangement mode in the battery pack 6000 is more flexible. Preferably, the two vehicle-end liquid cooling connecting devices are respectively arranged at two opposite ends of the accommodating cavity of the electric vehicle. The input part and the output part of the liquid cooling connecting device are arranged at the two ends of the accommodating cavity of the electric automobile, so that the layout of the liquid cooling pipeline in the battery pack 6000 can be optimized while the layout of the liquid cooling pipeline on the electric automobile is optimized, the occupied space of the liquid cooling pipeline is reduced, and the heat exchange efficiency is improved.

In another embodiment, the battery mounting section 7000 has all the features of the above-described embodiments, and further has a vehicle-end electrical connector. Wherein the fixed side of the vehicle-end electrical connector is connected to the top or end of the battery receiving cavity, the end being adjacent to both sides, respectively, the vehicle-end electrical connector having all or part of the features of the vehicle-end electrical connector shown in

embodiment

3 or 4. In another embodiment, the vehicle-end liquid-cooled connecting device and the vehicle-end electric connector can be arranged on the same mounting seat.

In another embodiment, the battery mounting portion 7000 has all the features of the above-described embodiments and further includes a battery hanging seat. Wherein a battery hanging seat is mounted on the top of the battery accommodating chamber, the battery hanging member has all or part of the features of the first hanging seat in the battery mounting part shown in embodiment 8, or the battery hanging member has all or part of the features of the second hanging seat in the battery mounting part shown in embodiment 9.

In another embodiment, the battery mounting portion 7000 has all the features of the above embodiments, and further includes a locking mechanism 7100, the locking mechanism 7100 is disposed corresponding to the locking shafts on both sides of the battery pack 6000, and the locking mechanism 7100 locks the battery pack 6000 by locking the locking shafts.

Example 13

As shown in fig. 23, this embodiment 13 discloses another battery mounting portion 7000, and the difference between this battery mounting portion 7000 and the battery mounting portion 7000 of embodiment 12 is only that the installation position of the vehicle-end liquid-cooled connecting apparatus is different, and other structures and functions are completely the same, and the same structures and functions are not described again.

The car end liquid cooling connecting device on battery installation department 7000 of this embodiment 13, the mount pad sets up on electric automobile holds the top surface or the side at chamber equally, but, the plane direction at mount pad and the plane direction at automobile body length direction place are mutually perpendicular to the plane direction of mount pad and circulation direction are mutually perpendicular, that is to say, circulation channel's circulation direction and battery package 6000's plane direction are parallel, thereby realize the intercommunication with electric automobile liquid cooling pipeline behind battery package 6000 with the horizontal direction installation to electric automobile.

Here, the battery pack 6000 is detachably attached to the bottom of the electric vehicle by a locking device including a locking mechanism having an L-shaped locking groove and a plurality of locking shafts disposed at both sides of the battery pack 6000. The battery pack 6000 is lifted in place by the bottom of the electric automobile and further moves along the length direction of the automobile body of the electric automobile, namely moves vertically and horizontally along the direction of the L-shaped locking groove until the battery pack 6000 is successfully locked when a locking shaft on the battery pack 6000 is matched with the locking groove of the locking mechanism. When the battery pack 6000 is vertically lifted in place, the vehicle-end liquid cooling connecting device is just aligned with the battery-end liquid cooling connecting device, and along with the horizontal movement of the battery pack 6000, the vehicle-end liquid cooling connecting device of the electric automobile is communicated with the battery-end liquid cooling connecting device on the battery pack 6000 and opens a circulation channel of the connecting valve.

According to the battery pack 6000 of this embodiment 13, in the process of installing the battery pack 6000 at the bottom of the electric vehicle, after the battery pack 6000 is vertically lifted in place, along with the continuous horizontal movement of the battery pack 6000, the connection valve of the electric vehicle and the battery end liquid cooling connection device of the battery pack 6000 are gradually abutted to the sealing connection from the initial contact state and open the circulation passage, so that the sealing communication of the liquid cooling pipeline can be realized while the installation of the battery pack 6000 is realized, and the installation and connection process is simple and efficient.

According to the solution of this embodiment 13, the installation seat is fixed in a vertical manner relative to the electric vehicle, and the flow direction of the flow channel of the connection valve is set perpendicular to the installation seat, that is, the flow direction of the flow channel of the connection valve is parallel to the horizontal direction of the electric vehicle, so that the battery pack 6000 can be lifted in place and the battery-side liquid-cooling connection device and the vehicle-side liquid-cooling connection device of the electric vehicle can be rapidly and hermetically connected.

embodiment

In another embodiment, the battery mounting portion 7000 has all the features of the above-described embodiments and further includes a battery hanging seat. In which a battery hanging seat is mounted on the top of the battery accommodating chamber, the battery hanging member has all or part of the features of the first hanging seat in the battery mounting portion 7000 shown in embodiment 8, or the battery hanging member has all or part of the features of the second hanging seat in the battery mounting portion 7000 shown in embodiment 9.

In another embodiment, there is also disclosed an electric vehicle having all or part of the features of the battery mounting portion shown in the

above embodiments

5, 8, 9, 12, 13, 16 and 17.

Example 14

The present embodiment provides a battery pack.

As shown in fig. 46, the battery pack 1 includes a battery-end electrical connector 12 for replacing the battery, a battery pack body 11, and a lock shaft 13. Wherein the battery end electrical connector for battery replacement 12 has all or some of the features of the battery end electrical connector for battery replacement shown in example 1. The mounting side of the battery terminal electrical connector 12 is connected to the top of the battery pack body 11, and the conductive output side is upward from the top of the battery pack body 11. The lock shaft 13 is connected to two opposite side surfaces of the battery pack body, and the lock shaft 13 is perpendicular to the side surfaces and extends toward the outside of the battery pack body 11, and is matched with a locking mechanism of an electric vehicle (not shown in the figure) to lock the battery pack 1 to the electric vehicle.

In another embodiment, the battery pack 1 has all of the features of the above-described embodiments, and further includes either or both of the battery-side liquid-cooled connection 14 and the hanger 15. Wherein the mounting base of the battery end liquid-cooled connecting device 14 is connected to the top or end of the battery pack body 11, the end being adjacent to both sides, respectively, the battery end liquid-cooled connecting device 14 having all or part of the features of the first liquid-cooled connecting device or the second liquid-cooled connecting device shown in embodiment 5. A hanger 15 is mounted on top of the battery pack body, the hanger 15 having all or part of the features of the first hanger in the battery pack shown in embodiment 6 or all or part of the features of the second hanger in the battery pack shown in embodiment 7.

In this embodiment, by installing the battery end electrical connector 12 at the top of the battery pack 1, when the battery pack 1 is installed at the bottom of the electric vehicle, a battery accommodating cavity which is recessed inward and has a downward opening is actually arranged at the bottom of the electric vehicle, and when the battery pack 1 is installed in the battery accommodating cavity, the battery end electrical connector 12 is accommodated between the battery pack 1 and the top wall of the battery accommodating cavity, so that the battery end electrical connector 12 is not easily affected by the external environment. For example, when the electric vehicle is running, the battery-side electrical connector 12 is less likely to be damaged by bumping, or when the electric vehicle is waded into water, the battery-side electrical connector 12 is less likely to be damaged by water, so that the battery pack 1 is ensured to stably supply power to the electric vehicle.

Example 15

The present embodiment provides another battery pack.

As shown in fig. 47, the battery pack 1 includes a battery-end electrical connector 12 for replacing a battery, a battery pack body 11, and a lock shaft 13. Wherein the battery end electrical connector for battery replacement 12 has all or some of the features of the battery end electrical connector for battery replacement shown in example 2. The mounting side of the battery end electrical connector 12 is connected to the top of the battery pack body 11, and the conductive output side faces the end direction of the battery pack body 11; the lock shaft 13 is connected to two opposite side surfaces of the battery pack body 11, and the lock shaft 13 is perpendicular to the side surfaces and extends toward the outside of the battery pack body 11, and is engaged with a locking mechanism of an electric vehicle (not shown) to lock the battery pack 1 to the electric vehicle.

Example 16

The present embodiment provides a battery mounting portion.

As shown in fig. 48, the battery mounting portion 2 is provided at the bottom of an electric vehicle (not shown) and is used for mounting a replaceable battery pack. Be equipped with locking mechanism 23 on battery installation department 2, locking mechanism 23 has the open slot that extends along vertical direction and the locking groove that extends along the horizontal direction, and the locking groove is used for supplying the locking axle on the battery package that embodiment 14 shows to insert the locking, and open slot and locking groove intercommunication, locking axle follow vertical direction from the open slot get into the locking inslot. The battery mounting portion 2 is further provided with a vehicle-end electrical connector 22, the vehicle-end electrical connector 22 has all or part of the features of the vehicle-end electrical connector shown in embodiment 3, and the vehicle-end electrical connector 22 is used for connecting with the battery-end electrical connector on the battery pack when the battery pack shown in embodiment 14 is mounted in the bottom-up direction.

In another embodiment, the battery mounting part 2 has all the features of the above-mentioned embodiment, and further includes a quick-change bracket 21, and the locking mechanism 23 is disposed on the quick-change bracket 21, and the quick-change bracket 21 is a ring-shaped or double-sided bar-shaped structure, only the double-sided bar-shaped structure is shown in the figure.

In another embodiment, the battery mounting portion 2 has all of the features of the embodiments described above, and further includes either or both of the vehicle-side liquid-cooled connector 24 and the docking station 25. Wherein the vehicle-side liquid-cooled connecting device 24 has all or part of the features of the first liquid-cooled connecting device or the second liquid-cooled connecting device shown in embodiment 5. The hanging seat 25 has all or part of the features of the first hanging seat in the battery mounting portion shown in embodiment 8 or all or part of the features of the second hanging seat in the battery mounting portion shown in embodiment 9, and the hanging seat 25 is used for hanging the battery pack in the vertical direction in cooperation with the hanging member of the battery pack shown in embodiment 14.

In this embodiment, the vehicle-end electrical connector 22 is mounted on the top wall of the battery accommodating cavity to be used with the battery pack 1 described in embodiment 14, so as to ensure that the vehicle-end electrical connector 22 is not easily affected by the external environment. For example, when the electric vehicle is driven, the vehicle-end electric connector 22 is less likely to be damaged by collision, or when the electric vehicle is waded into water, the vehicle-end electric connector 22 is less likely to be damaged by water immersion, so that stable connection with the battery-end electric connector is ensured, and power is stably supplied to the electric vehicle.

Example 17

The present embodiment provides a battery mounting portion.

As shown in fig. 49, the battery mounting portion 2 is disposed at the bottom of the electric vehicle and used for mounting and replacing the battery pack, the locking mechanism 23 is disposed on the battery mounting portion 2, the locking mechanism 23 has an open slot extending in the vertical direction and a locking groove extending in the horizontal direction, the locking groove is used for inserting and locking the lock shaft on the battery pack shown in embodiment 14, the open slot is communicated with the locking groove, and the lock shaft enters the locking groove from the open slot in the vertical direction. The battery mounting portion 2 is also provided with a vehicle-end electric connector 22, and the vehicle-end electric connector 22 has all or part of the features of the vehicle-end electric connector shown in embodiment 4, and is used for connecting with the battery-end electric connector on the battery pack when the battery pack shown in embodiment 15 is mounted in the direction from the horizontal.

In another embodiment, the battery mounting portion 2 has all of the features of the embodiments described above, and further includes either or both of the vehicle-side liquid-cooled connector 24 and the docking station 25. Wherein the vehicle-side liquid-cooled connecting device 24 has all or part of the features of the first liquid-cooled connecting device or the second liquid-cooled connecting device shown in embodiment 5. The hanging seat 25 has all or part of the features of the first hanging seat in the battery mounting portion shown in embodiment 8 or all or part of the features of the second hanging seat in the battery mounting portion shown in embodiment 9, and the hanging seat 25 is used for hanging the battery pack in the vertical direction in cooperation with the hanging member of the battery pack shown in embodiment 15.

In this embodiment, the vehicle-end electrical connector 22 is mounted on the top wall of the battery accommodating cavity to be used with the battery pack 1 described in embodiment 15, so as to ensure that the vehicle-end electrical connector 22 is not easily affected by the external environment. For example, when the electric vehicle is driven, the vehicle-end electric connector 22 is less likely to be damaged by collision, or when the electric vehicle is waded into water, the vehicle-end electric connector 22 is less likely to be damaged by water immersion, so that stable connection with the battery-end electric connector is ensured, and power is stably supplied to the electric vehicle.

Example 18

The embodiment provides an electric automobile.

The electric vehicle comprises a vehicle-end electric connector or a battery mounting part, wherein the vehicle-end electric connector has all or part of the characteristics of the vehicle-end electric connector shown in the embodiment 3, and the battery mounting part has all or part of the characteristics of the battery mounting part shown in the embodiment 16.

In this embodiment, car end electric connector installs the roof in the battery holds the chamber, and the battery package is installed back to electric automobile, and car end electric connector is located the battery package top to ensure that car end electric connector is difficult for receiving external environment's influence. For example, when the electric automobile runs, the vehicle end electric connector is not easy to damage due to collision, or when the electric automobile wades into water, the vehicle end electric connector is also not easy to damage due to water immersion, so that stable connection with the battery end electric connector is ensured, and power is stably supplied to the electric automobile.

Example 19

The embodiment provides an electric automobile.

The electric vehicle comprises a vehicle-end electric connector or a battery mounting part, wherein the vehicle-end electric connector has all or part of the characteristics of the vehicle-end electric connector shown in the embodiment 4, and the battery mounting part has all or part of the characteristics of the battery mounting part shown in the embodiment 17.

Example 20

The present embodiment provides an electric vehicle including all the features of embodiment 8 described above.

Example 21

The present embodiment provides an electric vehicle including all the features of embodiment 9 described above.

Example 22

This embodiment provides a battery pack mounting method, taking the example of mounting the battery pack in embodiment 6 on the battery pack mounting part in embodiment 8, but not limited to embodiments 6 and 8. The method comprises the following steps:

step 1, adjusting the position of the battery pack to enable the first hanging connecting piece to be aligned with the first hanging seat in the vertical direction.

Step 1.1, vertically moving the battery pack upwards to enable the first hanging piece to move to a pre-hanging position; when the first hanging piece reaches the pre-hanging position, the locking shaft of the battery pack reaches the upper in-place position in the locking groove in the locking mechanism. The method comprises the following steps:

step 1.1.1, vertically moving a battery pack upwards;

step 1.1.2, judging whether a lock shaft of the battery pack reaches an upper in-place position in a locking groove in a locking mechanism; if yes, the battery pack is stopped moving.

Step 1.2, horizontally moving the battery pack to enable the first hanging piece to move to a hanging position aligned with the first hanging seat; when the first hitching member reaches the hitching position, the lock shaft of the battery pack reaches the locking position in the lock center groove in the lock center mechanism. The method comprises the following steps:

step 1.2.1, horizontally moving the battery pack;

step 1.2.2, judging whether a lock shaft of the battery pack reaches a locking position in a locking groove in a locking mechanism; if yes, the battery pack is stopped moving.

When the first hanging piece is hung in the first hanging seat, the battery pack is matched and connected with the locking mechanism of the battery installation part so that the battery pack is locked on the electric automobile.

The first hanging connecting piece is controlled to be hung in the first hanging connecting seat by controlling the stroke of the lock shaft in the locking groove, so that the motion synchronism of the hanging device and the locking device is realized, and the control steps in the battery pack replacement process are reduced.

And 2, driving the first hanging piece to enter the first hanging seat, so that the first hanging piece is hung in the first hanging seat.

Specifically, the movable piece is driven to rotate, so that the threaded portion or the threaded hole on the movable piece is screwed with the threaded hole or the threaded portion on the first hanging seat.

In other embodiments, the movable member is driven to move vertically upward, so that the protrusion or the recess of the movable member is clamped into the recess or the protrusion in the first hanging seat.

In this embodiment, when the first hanging member reaches the pre-hanging position, the battery-side electrical connector is electrically connected to the vehicle-side electrical connector.

In other embodiments, the battery-side liquid-cooled connector is plugged into the vehicle-side liquid-cooled connector when the first hanger reaches the pre-hanging position.

In other embodiments, when the first hooking member is hooked in the first hooking seat, the battery-end electrical connector is electrically connected to the vehicle-end electrical connector.

In other embodiments, when the first docking member is docked in the first docking station, the battery-side liquid-cooled connector is docked with the vehicle-side liquid-cooled connector.

Example 23

This embodiment provides a battery pack mounting method, taking the example of mounting the battery pack in embodiment 7 on the battery pack mounting part in embodiment 9, but not limited to embodiment 7 and embodiment 9.

Step 1, adjusting the position of the battery pack to align the second hanging connecting piece with the second hanging seat in the vertical direction;

step 2, vertically moving the battery pack upwards to enable the second hanging piece to move to a position corresponding to a second hanging seat at the bottom of the electric automobile;

specifically, the battery pack is vertically moved upwards, so that a lock shaft of the battery pack reaches an upper in-place position in a lock groove in the locking mechanism; when the locking shaft of the battery pack reaches the upper in-place position in the locking groove in the locking mechanism, the second hanging piece moves to a position corresponding to the second hanging seat at the bottom of the electric automobile. The method comprises the following steps:

step 2.1, vertically moving the battery pack upwards;

step 2.2, judging whether the lock shaft of the battery pack reaches an upper in-place position in a locking groove in the locking mechanism; if yes, the battery pack is stopped moving.

And 3, moving the battery pack in the horizontal direction to enable the second hanging piece to be hung in a second hanging seat on the electric automobile.

Horizontally moving the battery pack to enable the lock shaft of the battery pack to reach a locking position in a locking groove in the locking mechanism; when the locking shaft of the battery pack reaches the locking position in the locking groove in the locking mechanism, the second hanging connecting piece is hung at the hanging point in the second hanging connecting seat on the electric automobile. The method comprises the following steps:

step 3.1, horizontally moving the battery pack;

step 3.2, judging whether the lock shaft of the battery pack reaches a locking position in a locking groove in the locking mechanism; if yes, the battery pack is stopped moving.

After the first hanging piece is hung in the first hanging seat, the battery pack is matched and connected with the locking mechanism of the battery installation part so that the battery pack is locked on the electric automobile.

In this embodiment, when the second hanging member moves to a position corresponding to the second hanging seat at the bottom of the electric vehicle, the battery-end electrical connector is electrically connected to the vehicle-end electrical connector.

In other embodiments, when the second hanging member moves to a position corresponding to the second hanging seat at the bottom of the electric vehicle, the battery-side liquid-cooled connecting device is plugged into the vehicle-side liquid-cooled connecting device.

In other embodiments, when the second hooking member is hooked in a second hooking seat on the electric vehicle, the battery-end electrical connector is electrically connected to the vehicle-end electrical connector.

In other embodiments, when the second hooking member is hooked into a second hooking seat on the electric vehicle, the battery-side liquid-cooled connecting device is plugged into the vehicle-side liquid-cooled connecting device.

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 battery pack for being horizontally mounted on an electric vehicle, the battery pack has an upper cover and a lower case, and a battery module is provided between the upper cover and the lower case, wherein the A second hook is installed on the upper cover, which is used to move to a position corresponding to the second hook seat on the bottom of the electric vehicle in the vertical direction, and move into the second hook seat in the horizontal direction, so that the battery pack can be hung. Connected to the second mount on the electric vehicle.

2 . The battery pack according to claim 1 , wherein the second hooking member is disposed in the middle area of the upper cover. 3 .

3 . The battery pack according to claim 1 , wherein the second hanging member comprises a connecting portion and a hanging portion, one end of the connecting portion is mounted on the upper cover, and the other end of the connecting portion is mounted on the upper cover. 4 . One end is connected to the hook portion, the hook portion is located above the upper cover, and the second hook member is hooked into the second hook seat through the hook portion.

4 . The battery pack according to claim 3 , wherein the hooking portion and the second hooking seat are connected by any one of screw connection, snap connection, buckle connection, plug connection, hook connection and tenon connection. 5 . The two ways cooperate with each other to realize the connection of the battery pack.

5 . The battery pack according to claim 3 , wherein the hooking portion protrudes from the connecting portion in a direction away from the connecting portion. 6 .

6 . The battery pack according to claim 5 , wherein the hook portion protrudes from the connecting portion in a horizontal direction. 7 .

7 . The battery pack according to claim 3 , wherein the outer wall of the connecting portion is provided with a threaded portion, and is connected and fixed with the upper cover through the threaded portion. 8 .

8 . The battery pack according to claim 3 , wherein the outer wall of the connecting portion has a limiting portion extending outward from the outer wall and protruding, for the second hook member to abut against the upper cover. 9 .

9 . The battery pack according to claim 8 , wherein the limiting portion is a nut sleeved on the threaded portion of the connecting portion. 10 .

10 . The battery pack according to claim 3 , wherein the hooking portion is vertically disposed with the connecting portion, the connecting portion is a connecting rod extending in a vertical direction, and the hooking portion is a connecting rod extending along the vertical direction. 11 . Hitch bar extending horizontally.

11. The battery pack according to claim 10, wherein the hanger rod is cylindrical.

12 . The battery pack according to claim 3 , wherein the hooking portion and the connecting portion are integrally formed, or the hooking portion and the connecting portion are detachably connected. 13 .

13 . The battery pack according to claim 3 , wherein the battery pack further comprises a second mounting seat, and the second hanging member is mounted on the upper cover through the second mounting seat. 14 .

14 . The battery pack of claim 13 , wherein the second mounting seat is disposed between the upper cover and the lower case. 15 .

15. The battery pack according to claim 14, wherein a sealing member is provided between the second mounting seat and the upper cover.

16 . The battery pack of claim 14 , wherein the second mounting seat is detachably connected to the upper cover, and the second mounting seat is fixedly connected to the lower case. 17 .

17. The battery pack according to claim 13, wherein the second mounting seat comprises a third accommodating cavity for providing an operating space, and/or a fourth accommodating cavity, the fourth accommodating cavity A cavity is used to accommodate the connecting portion.

18. The battery pack according to claim 1, wherein the battery pack comprises a side wall portion, and at least two side surfaces of the side wall portion are vertically provided with locking shafts for locking the battery pack on the side wall. Inside the locking mechanism on an electric vehicle.

19 . The battery pack according to claim 18 , wherein the lower case body comprises a bottom wall portion and a side wall portion, the bottom wall portion and the upper cover are arranged opposite to each other, and the side wall portion is arranged on the bottom wall. 20 . Between the battery pack and the upper cover, at least two sides of the side wall portion along the length direction of the battery pack are vertically provided with locking shafts for locking the battery pack in the locking mechanism on the electric vehicle.

20 . The battery pack according to claim 1 , wherein the second hooking member is arranged at a middle position in the length direction of the battery pack. 21 .

21 . The battery pack according to claim 1 , wherein a plurality of the second hooks are provided on the battery pack, and at least one row of the plurality of second hooks is in a straight line. 22 .

22 . The battery pack according to claim 21 , wherein the plurality of second hanging members are connected to form a row of second hanging members through a connecting member. 23 .

23. The battery pack according to claim 1, wherein the battery pack further comprises a first locking member and/or a second locking member, and the first locking member is used to lock the battery A bolt-type locking mechanism mounted on the electric vehicle, and the second locking member is used for locking the battery pack to a bead-type locking mechanism on the electric vehicle.

24. The battery pack according to claim 1, wherein the battery pack further comprises a battery terminal electrical connector; and/or the battery pack further comprises a liquid cooling pipeline connection device.

25 . The battery pack according to claim 24 , wherein the battery terminal electrical connector is provided on the upper cover, and the liquid cooling pipeline connection device is provided on the side wall of the upper cover or the lower case. 26 . .

26. An electric vehicle, characterized by comprising a battery mounting portion and the battery pack according to any one of claims 1-25.