CN112744064B

CN112744064B - Battery replacing assembly for vehicle and battery replacing method thereof

Info

Publication number: CN112744064B
Application number: CN202110110826.3A
Authority: CN
Inventors: 陈涛; 张辉; 梁晶晶; 王一戎; 王荣华; 张孝平
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Geely Sichuan Commercial Vehicle Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Development Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Geely Sichuan Commercial Vehicle Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Development Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2022-06-14
Anticipated expiration: 2041-01-27
Also published as: CN112744064A

Abstract

The invention provides a battery replacement assembly for a vehicle and a battery replacement method thereof, and relates to the technical field of chassis. Trade the electric assembly and include: the two fixing structures are respectively positioned on two sides of the transverse and longitudinal beam assembly in the transverse direction of the vehicle and are respectively fixedly connected with the two vehicle body longitudinal beams; the transferring structure is detachably arranged below the transverse and longitudinal beam assembly and the two fixing structures; a first accommodating space is defined inside the fixed structure, a second accommodating space is defined inside the transferring structure, a third accommodating space is defined between the transferring structure, the two fixed structures and the transverse and longitudinal beam assembly, and the first accommodating space, the second accommodating space and the third accommodating space are all used for accommodating the battery pack; the top of transporting the structure and the bottom of every fixed knot structure all open to make the battery package of holding in first accommodation space, second accommodation space and third accommodation space all support on transporting the structure. The battery replacing assembly provided by the invention is reasonable in battery space arrangement and can realize bottom battery replacement.

Description

Battery replacing assembly for vehicle and battery replacing method thereof

Technical Field

The invention relates to the technical field of chassis of vehicles, in particular to a battery replacement assembly for a vehicle and a battery replacement method thereof.

Background

The equal overall arrangement of formula commercial car pure electric vehicle battery is born to the non-and is provided with transmission shaft and ingot roof beam in longeron both sides between two longerons, does not have sufficient spatial arrangement battery, adopts the standard box overall arrangement on the current market on the great motorcycle type of electric quantity demand such as heavily blocking, and the battery electric quantity that can lay out is the most 282kwh, and the mileage is no longer than 150km, leads to the radius of traveling less, is unfavorable for new energy vehicle's popularization. And the commercial car trades the electric mode and has two kinds in the existing market: one is laterally drawing and replacing the battery, and the other is top hoisting and replacing the battery. The lateral drawing power changing mode needs to arrange rollers, guide, positioning, locking and the like on the vehicle, has a complex structure, high manufacturing cost and high failure rate, and increases the operation risk of the vehicle; the battery box is lifted above the vehicle to realize battery replacement in the top lifting battery replacement mode, and the battery box needs to be lifted to a higher height due to higher electric quantity of the heavy truck and higher height, so that the danger of battery replacement is greatly increased. Therefore, in the prior art, both the arrangement mode and the battery replacement mode of the battery pack have many unreasonables.

Disclosure of Invention

One object of the first aspect of the present invention is to provide a battery replacement assembly which has a reasonable spatial arrangement of batteries and can implement a bottom battery replacement mode.

A further object of the first aspect of the present invention is to provide a battery replacement assembly with high battery replacement efficiency and convenience.

The invention aims to provide a battery replacement method capable of realizing battery replacement at the bottom.

According to the first aspect, the present invention provides an electric replacing assembly for a vehicle, the vehicle comprising a transverse beam component, the transverse beam component comprises two vehicle body longitudinal beams which extend along the longitudinal direction of the vehicle, are parallel and are arranged at intervals, and the electric replacing assembly comprises:

the two fixing structures are respectively positioned on two sides of the transverse and longitudinal beam assembly in the transverse direction of the vehicle and are respectively fixedly connected with the two vehicle body longitudinal beams;

the transferring structure is detachably arranged below the transverse and longitudinal beam assembly and the two fixing structures;

a first accommodating space is defined inside the fixed structure, a second accommodating space is defined inside the transfer structure, a third accommodating space is defined between the transfer structure, the two fixed structures and the transverse and longitudinal beam assembly, and the first accommodating space, the second accommodating space and the third accommodating space are all used for accommodating battery packs;

the top of transporting the structure and every fixed knot constructs the bottom all opens to make the holding in first accommodation space, second accommodation space with the battery package in the third accommodation space all supports transport on the structure.

Optionally, the transportation structure passes through locking mechanism and every the fixed knot constructs can dismantle the connection, locking mechanism includes locking part and cooperation portion, the cooperation portion sets up on the bottom edge of fixed knot structure, locking part sets up on the top edge of transporting the structure.

Optionally, the locking portion includes a housing, a transmission device and a lock cylinder, the transmission device includes a transmission shaft rotatably disposed in the housing, and a body disposed in the housing and sleeved on the transmission shaft, the body is configured to move along an axial direction of the transmission shaft when the transmission shaft rotates; and is

The lock core is connected with the body and is arranged to extend out of the shell and be in locking fit with the matching part when the body moves towards a first direction along the axial direction of the transmission shaft, and to be released from locking fit with the matching part and retract into the shell when the body moves towards a second direction opposite to the first direction along the axial direction of the transmission shaft.

Optionally, the lock core includes first part and second part, be provided with on the body and supply the spout that first part card was gone into, the second part has relative both ends, wherein one end with the first part is connected, and the other end passes behind the first via hole of seting up on the shell with cooperation portion locking fit.

Optionally, a positioning hole is further formed in the bottom opening of the fixing structure, and a positioning pin is arranged at a position, corresponding to the positioning hole, of the top opening of the transferring structure.

Optionally, the positioning hole includes a fine positioning hole and a coarse positioning hole, the positioning pin includes a fine positioning pin and a coarse positioning pin, the fine positioning hole is matched with the fine positioning pin, and the coarse positioning hole is matched with the coarse positioning pin.

Optionally, trade the electric assembly and still include:

the control module comprises a connector and a first support, wherein the connector is connected with the battery pack, and the first support is connected between the two vehicle body longitudinal beams and used for fixing the connector.

Optionally, the connector is provided with a plurality of fixing pins, and each fixing pin is sleeved with a buffer structure;

the connector is also provided with a cooling liquid inlet communicated with a battery pack cooling system, and the cooling liquid inlet is used for cooling the battery pack after cooling liquid flows into the connector.

Optionally, the buffer structure is a spring.

According to the second aspect, the invention further provides a battery replacement method for the battery replacement assembly, which includes:

parking the vehicle to a battery replacement platform;

the lifting device supports the transfer structure, the fixed structure and the transfer structure are controlled to be disconnected and then unlocked, and the transfer structure and the battery pack to be replaced fall onto the battery replacing platform together;

the battery replacing platform moves the transferring structure away from the battery replacing platform, the battery pack to be replaced moves the transferring structure and the full-charge battery pack together to the position below the fixing structure, the lifting device lifts the transferring structure, and the fixing structure is connected with the transferring structure after being aligned.

The battery replacement assembly for the vehicle generally comprises two fixing structures and a transfer structure, and the plurality of battery packs are arranged on two sides of two vehicle body longitudinal beams in the transverse direction of the vehicle, namely on two opposite sides between the two vehicle body longitudinal beams. On the basis of the prior art, the embodiment displaces or eliminates components between two body longitudinal beams, such as a transmission shaft and a shoe-shaped beam, so that extra space is used for arranging the battery packs, the number of the battery packs is increased, the total electric quantity can be increased by 50%, the running radius of the vehicle is increased, and the arrangement of the battery packs on two sides of the body longitudinal beams is more reasonable. Further, the fixed knot constructs the opening downwards, it is upwards to transport the structure opening, that is to say, the battery package is placed on transporting the structure, only need to lift the transport structure when needing to change the battery package, then can lift the battery package off with the fixed knot structure separation, from bottom dismouting battery package, need not the cooperation of structures such as gyro wheel, the technical problem that side pull and top mounted exist among the prior art has been solved, greatly reduced trades the trouble risk of electric in-process, safety factor has been improved, and also be favorable to trading the power station with the passenger car compatible, it is unified, reduce the cost of popularization of trading the power station.

Further, fixed knot constructs and transports the structure and realizes dismantling the connection through locking mechanism, and locking mechanism includes locking portion and cooperation portion, and locking portion sets up on fixed knot constructs's bottom edge, and cooperation portion sets up on transporting the top edge of structure. Realize fixed knot through locking mechanism and transport the connection dismantled of structure, improved and traded electric efficiency and convenience.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural view of a battery pack and body rails for a vehicle according to one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a battery swapping assembly for a vehicle according to an embodiment of the invention;

FIG. 3 is a schematic partial structure diagram of a battery swapping assembly for a vehicle according to an embodiment of the invention;

FIG. 4 is a schematic structural diagram of a latch portion of a charging assembly for a vehicle according to one embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a body of a latch portion of an electrical charging assembly for a vehicle, according to one embodiment of the present disclosure;

FIG. 6 is a cross-sectional view of a body of a latch portion of an electrical charging assembly for a vehicle, according to one embodiment of the present disclosure;

FIG. 7 is a partial schematic structural view of a locking mechanism of an electric charging assembly for a vehicle according to an embodiment of the invention;

FIG. 8 is a schematic structural diagram of a housing of a locking mechanism of an electrical swapping assembly for a vehicle according to an embodiment of the invention;

FIG. 9 is a schematic partial structural view of a battery pack for a vehicle according to another embodiment of the invention;

FIG. 10 is a schematic structural diagram of a connector for a battery pack of a vehicle according to one embodiment of the invention;

fig. 11 is a flowchart of a power swapping method according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Fig. 1 is a schematic structural view of an electric exchange assembly and a body side member for a vehicle according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of a battery replacement assembly for a vehicle according to an embodiment of the invention. Fig. 3 is a partial structural schematic diagram of a battery replacement assembly for a vehicle according to an embodiment of the invention. As shown in fig. 1, and referring to other drawings as well, the present invention provides an electrical interchange assembly for a vehicle, the vehicle includes a cross-member assembly, the cross-member assembly includes two body rails 700 extending in a longitudinal direction of the vehicle, and the body rails are parallel and spaced apart from each other, and the electrical interchange assembly includes two fixing structures 300 and a transfer structure 400. The two fixing structures 300 are respectively located at both sides of the cross-side member assembly fixedly connected in the vehicle transverse direction, and are respectively fixedly connected with the two vehicle longitudinal members 100. The transfer structure 400 is detachably disposed below the wale module and the two fixing structures 300. First accommodation space is injectd to fixed knot structure 300's inside, and second accommodation space is injectd to the inside of transporting the structure, and it has the third accommodation space to inject between transport structure 400, two fixed knot structures 300 and the crossbeam girder subassembly, and first accommodation space, second accommodation space and third accommodation space all are used for holding the battery package. The top of the transfer structure 400 and the bottom of each fixing structure 300 are both open, so that the battery packs in the first accommodating space, the second accommodating space and the third accommodating space are all supported on the transfer structure 400. The battery packs 600 are disposed on both sides of the body side member 700 in the lateral direction of the vehicle, that is, between the two body side members 700 and on both sides of the two body side members 700 facing away from each other. Wherein, the bottom of the fixed structure 300 is detachably connected with the top of the transferring structure 400, so as to realize the separation of the battery pack 600 from the vehicle after the fixed structure 300 is detached from the transferring structure 400, thereby allowing the battery pack 600 to be replaced.

The battery replacement assembly for the vehicle provided by the embodiment generally comprises two fixing structures 300 and a transfer structure 400, and the plurality of battery packs 600 are arranged on two sides of two vehicle body longitudinal beams 700 in the transverse direction of the vehicle, namely, on two sides between and opposite to the two vehicle body longitudinal beams. On the basis of the prior art, the present embodiment displaces or eliminates the components between the two body side members 700, such as the transmission shaft and the shoe beam, and uses the extra space for arranging the battery packs 600, so that the number of the battery packs 600 is increased, the total power can be increased by 50%, the running radius of the vehicle is increased, and the layout of arranging the battery packs 600 on the two sides of the body side members 700 is more reasonable. Further, the opening of fixed knot constructs 300 is downward, it is upwards to transport structure 400 opening, that is to say, battery package 600 is placed on transporting structure 400, only need to transport structure 400 and lift when needing to change battery package 600, then can lift battery package 600 off with the separation of fixed knot structure 300, from bottom dismouting battery package 600, need not the cooperation of structures such as gyro wheel, the technical problem that side pull and top-mounted exist among the prior art has been solved, greatly reduced trades the trouble risk of electricity in-process, safety factor has been improved, and also be favorable to trading the power station with the passenger car compatible, unify, reduce the popularization cost who trades the power station.

In a specific embodiment, the fixed structure 300 and the transferring structure 400 are detachably connected by a locking mechanism, the locking mechanism includes a locking portion 100 and a matching portion 200, the matching portion 200 is disposed on the bottom edge of the fixed structure 300, and the locking portion 100 is disposed on the top edge of the transferring structure 400. Can dismantle the connection of fixed knot structure 300 and transport structure 400 through locking portion 100 and cooperation portion 200 realization, improved and traded electric efficiency and convenience. Preferably, to increase the degree of intelligence of the system, the locking portion 100 is configured to be controllably connected and disconnected with the mating portion 200.

Fig. 4 is a schematic structural diagram of a locking portion of an electric exchange assembly for a vehicle according to an embodiment of the invention. Fig. 5 is a schematic structural diagram of a body of a battery replacement assembly for a vehicle according to an embodiment of the invention. FIG. 6 is a cross-sectional view of a body of an electrical exchange assembly for a vehicle according to one embodiment of the present invention. Fig. 7 is a partial structural schematic diagram of a locking mechanism of an electric exchange assembly for a vehicle according to an embodiment of the invention.

Fig. 8 is a schematic structural diagram of a housing of a locking mechanism of an electric exchange assembly for a vehicle according to one embodiment of the invention. As shown in fig. 4, in a preferred embodiment, the locking part 100 includes a housing 110, a transmission 120 and a lock cylinder 130, the transmission 120 includes a body 121 and a transmission shaft 122, the body 121 is disposed in the housing 110, the transmission shaft 122 is rotatably disposed in the housing 110, the body 121 is sleeved on the transmission shaft 122, the body 121 is configured to move along an axial direction of the transmission shaft 122 when the transmission shaft 122 rotates, and the lock cylinder 130 is connected to the body 121, the key cylinder 130 may be configured to extend out of the housing 110 and be lockingly engaged with the engaging portion 200 when the body 121 moves in the first direction along the axial direction of the transmission shaft 122, and to release the lockingly engaged with the engaging portion 200 and retract into the housing 110 when the body 121 moves in the second direction opposite to the first direction along the axial direction of the transmission shaft 122, the first direction may be a direction from the top of the housing to the bottom, and the second direction may be a direction from the bottom of the housing to the top.

In one embodiment, the body is provided with a mounting portion 1212, and the transmission shaft 122 penetrates into the mounting portion 1212.

In one embodiment, the lock cylinder 130 includes a first portion 131 and a second portion 132, the body 121 is further provided with a sliding slot 1211 into which the first portion 131 is inserted, the second portion 132 has two opposite ends, one end of the second portion is connected to the first portion 131, the other end of the second portion passes through a first through hole 1111 formed in the housing 110 and then is connected to the matching portion 200, the second portion 132 passes through the first through hole 1111 formed in the housing 110 and then can be inserted into the matching portion 200 to achieve locking, the lock cylinder 130 also bears the weight (for example, a battery) of one of the members to be locked after locking, and the sliding slot 1211 is further configured to be installed at a preset angle with the axis of the transmission shaft 122, so that the radial movement of the lock cylinder 130 is achieved.

In a specific embodiment, the mounting portion 1212 is provided with an internal thread, the transmission shaft 122 is provided with an external thread matching the internal thread, and the thread structure is a main drive of the locking mechanism, and has a self-locking function and a good anti-loose effect. The matching between the threads not only realizes the relative movement of the body 121 and the transmission shaft 122 in the axial direction, but also increases the connection tightness between the body 121 and the transmission shaft 122, and indirectly improves the bearing capacity of the locking mechanism.

In a specific embodiment, the body 121 has a square shape in a radial section along the transmission shaft 122, the number of the sliding grooves 1211 is two, and the two sliding grooves 1211 are arranged on two opposite sides of the body 121 in a mirror image manner. In other embodiments, the radial section of the transmission shaft 122 may be circular, triangular, or other regular or irregular shapes, and the number of the sliding grooves 1211 may be multiple, for example, three, four, five or more, and those skilled in the art will appreciate that the greater the number of the sliding grooves 1211, the stronger the load-bearing capacity and the locking capacity of the locking mechanism under the same other conditions.

In one embodiment, the chute 1211 extends from the bottom of the body 121 to the top thereof, although the length of the chute 1211 can be set according to the actual carrying capacity.

In a specific embodiment, the bottom area of the body 121 is smaller than the top area, and the side of the body 121 where the sliding slot 1211 is disposed upward along the bottom of the body 121 to form a slope, preferably, the angle of the slope is the same as the angle of the sliding slot 1211. Correspondingly, the part of the housing 110, which is engaged with the body 121 after locking, is provided with an inclined surface having the same shape as the body 121, so that the positioning and guiding function can be achieved during the engagement with the engaging part 200.

In a further embodiment, the groove 220 is disposed on the matching portion 200, and the groove 220 is matched with the outer wall of the outer shell 110, so that the outer shell 110 bears load, thereby increasing the bearing capacity of the locking mechanism in the horizontal direction and improving the locking capacity and the reliability of the system.

In a further embodiment, the housing 110 includes a casing 111 and an upper end cover 112, the upper end cover 112 is provided with a first through hole 1121 for the transmission shaft 122 to pass through, the transmission shaft 122 is sleeved with a bearing, the bearing is embedded in the first through hole 1121, and a limiting boss for limiting the axial movement of the bearing on the transmission shaft 122 is disposed on an inner wall of the first through hole 1121 and/or the transmission shaft 122.

In a specific embodiment, the inner wall of the housing 111 is provided with a guide pin 1113, and the outer wall of the body 121 is provided with a guide groove 1213 engaged with the guide pin 1113. The number of the guide pins 1113 is the same as that of the guide grooves 1213, and preferably, the number of the guide pins 1113 is at least two.

In a specific embodiment, the fitting portion 200 is provided with a guide groove 210 fitted with the second portion 132, the second portion 132 has an upper contact surface 1321 and a lower contact surface 1322 contacting the guide groove 210, and the upper contact surface 1321 and the lower contact surface 1322 are arranged at a second preset angle and a third preset angle, respectively, with respect to the radial direction of the drive shaft 122, such that the upper contact surface 1321 and the lower contact surface 1322 are inclined surfaces. Further, the second portion 132 has left and right contact surfaces contacting the guide groove 210, and a predetermined angle is formed between the left and right contact surfaces and a vertical cross-section of the second portion 132, so that the left and right contact surfaces are also inclined surfaces. The design of inclined plane can make the contact of second part 132 and cooperation portion 200 inseparabler, effectively realizes the function of locking, increases the reliability of lock body, can bear bigger load, also can absorb processing, assembly error in vertical and horizontal direction, can effectively reduce the machining precision requirement of system.

In a further embodiment, the mounting portion 1212 is a through hole penetrating through the body 121, and a second through hole is opened at a position of the bottom of the housing 111 corresponding to the through hole, and the diameter of the second through hole is slightly larger than that of the transmission shaft 122. During installation, the transmission shaft 122 passes through the upper end cap 112, the body 121 and the second through hole in sequence. Preferably, the lower end cover is arranged below the second through hole, and the through hole for penetrating the transmission shaft 122 is also formed in the position, corresponding to the second through hole, of the lower end cover, so that the stability of the transmission shaft 122 can be further improved, and the axial movement of the transmission shaft 122 is avoided.

In a further embodiment, the inside of the housing 111 is further provided with a first stopper 1114 and a second stopper 1115 arranged from top to bottom, and one surfaces of the first stopper 1114 and the second stopper 1115 away from the inner wall of the housing 111 are attached to the body 121. The first via 1111 is located between the first stopper 1114 and the second stopper 1115, and a mounting hole 1116 for mounting the upper cover 112 is formed at the top of the first stopper 1114. And the first stopper 1114 and the second stopper 1115 can effectively increase the contact area of the body 121 and the housing 111, increase the bearing capacity, and have a guiding function. Further, a lug 1112 is provided outside the housing 111, and the lug 1112 is used to fix the locking portion 100. Preferably, the number of lugs 1112 is two.

In a further embodiment, the number of the fixing structures 300 is two, 8 fitting portions 200 are provided on each fixing structure 300, and 8 locking portions 100 are provided on the corresponding transfer structure 400, and in practical applications, the number of the fixing structures 300, the number of the fitting portions 200, and the number of the locking portions 100 can be flexibly adjusted according to the weight of the battery.

In a specific embodiment, the bottom opening of the fixing structure 300 is further provided with a positioning hole 320, and the top opening of the transferring structure 400 is provided with a positioning pin 420 at a position corresponding to the positioning hole 320. The positioning pin 420 is used for positioning the fixing structure 300 and the transferring structure 400 before locking, so that reliable connection is ensured, and the specific position of the positioning pin 420 on the top opening is not limited.

In a specific embodiment, the positioning holes 320 include a fine positioning hole and a coarse positioning hole, and the positioning pins 420 include a fine positioning pin and a coarse positioning pin, wherein the fine positioning hole is matched with the fine positioning pin, the coarse positioning hole is matched with the coarse positioning pin, and the specific positions of the coarse positioning pin and the fine positioning pin 420 are not limited.

With continued reference to fig. 3, in one particular embodiment, the fixed structure 300 is a frame structure. Further, the frame structure comprises a plurality of first longitudinal beams 350, a plurality of second longitudinal beams 330, a plurality of cross beams 340 and a plurality of vertical beams, wherein two first longitudinal beams 350 and two cross beams 340 form a bottom opening of the fixing structure 300, the matching portion 200 and the positioning hole 320 are arranged on the first longitudinal beam 350 for forming the bottom opening, and the second longitudinal beam 330 is fixedly connected with the vehicle body longitudinal beam 700 so that the fixing structure 300 is fixed on the vehicle body longitudinal beam 700. The frame structure further includes a plurality of oblique beams 360 provided at ends of the fixed structure 300 in the longitudinal direction of the vehicle for reinforcing stability of the fixed structure 300.

In other embodiments, the fixing structure 300 may also be a plate-shaped structure or a net-shaped structure, and reinforcing ribs may be further disposed on the plate-shaped structure and the net-shaped structure as required to enhance the strength.

In one particular embodiment, the transfer structure 400 is a frame structure having a plurality of longitudinal beams, a plurality of transverse beams 340, a plurality of vertical beams, and a plurality of diagonal beams 360 similar to the fixed structure 300. Preferably, the opening of the second accommodating space is composed of two cross beams 340 and two longitudinal beams, and the shape of the composed opening is consistent with the shape of the opening of the first accommodating space.

In a preferred embodiment, the sizes of the fixing structure 300 and the transferring structure 400 can be adaptively adjusted according to the power demand of the vehicle, i.e., the number of the battery packs 600.

In other embodiments, the transferring structure 400 may also be a plate-like structure or a net-like structure, and reinforcing ribs may be further disposed on the plate-like structure and the net-like structure as required to enhance the strength.

Fig. 9 is a partial structural schematic view of a battery replacement assembly for a vehicle according to another embodiment of the invention. As shown in fig. 9, in a specific embodiment, the battery replacement assembly further includes a control module 500, which includes a connector connected to the battery pack 600 and a first bracket 510, wherein the first bracket 510 is connected between two body rails 700 for fixing the connector. Further, the control module 500 further includes a controller 540 connected to the battery pack 600 through a connector, so as to monitor the battery pack 600. To facilitate the fixing, the control module 500 is connected to the transfer structure 400 through a fixing bracket 550, and preferably, the control module 500 is disposed at an end of the battery pack 600 near the head of the vehicle.

Further, the connector includes a male end 520 and a female end 530, which are symmetrically disposed and connected through a connection port 521. Fig. 10 is a schematic structural diagram of a connector for a battery pack of a vehicle according to an embodiment of the present invention. As shown in fig. 10, which illustrates the male end 520 of the connector, in a specific embodiment, the connector is provided with a plurality of fixing pins 522, each of the fixing pins 522 is sleeved with a buffer structure 523, the connector is further provided with a cooling fluid inlet 524 for communicating with a cooling system of the battery pack 600, and the cooling fluid inlet 524 is used for allowing cooling fluid to flow into the battery pack 600 and then cooling the battery pack 600.

In a specific embodiment, the buffer structure 523 is a spring, so that a certain floating amount can be retained in the transverse and longitudinal directions under the condition of realizing vertical buffer matching of the vehicle, thereby being more beneficial to eliminating machining errors of mechanical manufacture and facilitating the butt joint of the connector and the cooling liquid inlet 524.

Fig. 11 is a flowchart of a power swapping method according to an embodiment of the present invention. As shown in fig. 11, the present invention further provides a battery replacing method for the battery replacing assembly provided in any one of the above embodiments, which generally includes:

s10: parking the vehicle to a battery replacement platform;

s20: the lifting device supports the transferring structure 400 and the battery pack to be replaced, the fixed structure 300 is controlled to be unlocked after being disconnected from the transferring structure 400, and the transferring structure 400 and the battery pack to be replaced fall onto the battery replacing platform together;

s30: the battery replacing platform moves away the transferring structure 400 and the battery pack to be replaced, the transferring structure 400 and the full-charge battery pack are moved to the lower side of the fixing structure 300 together, the lifting device lifts the transferring structure 400 and the full-charge battery pack, and the fixing structure 300 is connected with the transferring structure 400 after being aligned.

Specifically, before the vehicle enters the battery replacement station, the vehicle performs information interaction (in an interaction mode such as bluetooth) before the battery replacement station, the identity of the vehicle is mutually confirmed, and the battery replacement is allowed if the station side judges that the battery replacement condition is met; the battery replacing station end battery replacing platform starts to work, firstly the battery replacing platform positions the battery pack 600 and moves to a position right below the battery pack 600; at this time, the lifting device works to hold the battery pack 600; then, the unlocking device is matched with the locking part 100 to perform unlocking action, the unlocking is completed, and the battery pack 600 falls on the mobile platform; the mobile platform moves the battery pack 600 to a station, stores the battery pack according to rules, moves the fully charged battery pack 600 to a vehicle for installation, and when the battery pack is installed, the locking device is matched with the locking part 100 to perform locking action; after the locking action is completed, the mobile platform leaves, the vehicle self-checks at the same time, and if no problem exists, the battery replacement is completed, so that the bottom lifting battery replacement is realized, and the battery replacement safety coefficient is improved.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. The utility model provides a trade electric assembly for vehicle, the vehicle includes the crossbar subassembly, the crossbar subassembly includes two automobile body longerons that extend, parallel and the interval set up along the vehicle longitudinal direction, its characterized in that trades electric assembly and includes:

the top of transporting the structure and every fixed knot constructs the bottom all opens to make the holding in first accommodation space, second accommodation space with the battery package in the third accommodation space all supports transport structurally last.

2. The battery swapping assembly of claim 1, wherein the transfer structure is detachably connected with each of the fixing structures through a locking mechanism, the locking mechanism comprises a locking portion and an engaging portion, the engaging portion is disposed on a bottom edge of the fixing structure, and the locking portion is disposed on a top edge of the transfer structure.

3. The battery changing assembly as recited in claim 2 wherein the locking portion comprises a housing, a transmission device and a lock cylinder, the transmission device comprises a transmission shaft rotatably disposed in the housing and a body disposed in the housing and sleeved on the transmission shaft, the body is configured to move along an axial direction of the transmission shaft when the transmission shaft rotates; and is

4. The battery replacement assembly according to claim 3, wherein the lock cylinder comprises a first part and a second part, a sliding groove for the first part to be clamped is formed in the body, the second part is provided with two opposite ends, one end of the second part is connected with the first part, and the other end of the second part is in locking fit with the matching part after penetrating through a first through hole formed in the shell.

5. The battery replacement assembly as recited in claim 1 wherein the bottom opening of the fixed structure is further provided with a positioning hole, and the top opening of the transfer structure is provided with a positioning pin at a position corresponding to the positioning hole.

6. The battery swap assembly of claim 5, wherein the positioning holes comprise a fine positioning hole and a coarse positioning hole, and the positioning pins comprise a fine positioning pin and a coarse positioning pin, the fine positioning hole cooperating with the fine positioning pin, and the coarse positioning hole cooperating with the coarse positioning pin.

7. The battery change assembly of claim 1, further comprising:

8. The battery replacement assembly according to claim 7, wherein a plurality of fixing pins are arranged on the connector, and a buffer structure is sleeved on each fixing pin;

9. The battery change assembly of claim 8, wherein the buffer structure is a spring.

10. A method for replacing the battery pack as claimed in any one of claims 1 to 9, comprising:

parking the vehicle to a battery replacement platform;

the lifting device supports the transferring structure, the fixed structure and the transferring structure are controlled to be disconnected and then unlocked, and the transferring structure and the battery pack to be replaced fall onto the battery replacing platform together;