CN117360443A

CN117360443A - Power conversion method

Info

Publication number: CN117360443A
Application number: CN202210764758.7A
Authority: CN
Inventors: 张建平; 王莉; 仇丹梁
Original assignee: Aulton New Energy Automotive Technology Co Ltd; Shanghai Dianba New Energy Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd; Shanghai Dianba New Energy Technology Co Ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2024-01-09

Abstract

The invention provides a power conversion method, which realizes the disassembly or the installation of a battery pack of a power conversion vehicle through a power conversion trolley, and comprises the following steps: before battery disassembly or battery installation, controlling the sliding platform to lift to a high state higher than the supporting mechanism; after the battery pack of the battery change vehicle is unlocked or before the battery pack full of electricity is installed, controlling the battery change trolley to transfer the battery pack relative to the sliding platform; after the battery carrier carries the battery pack with full power, the sliding platform is controlled to be lowered to a low-level state lower than the supporting mechanism so as to lock the battery pack with full power. According to the invention, the battery pack is pushed in or moved out from the side face of the battery bracket through the battery replacement trolley, so that the risk that the battery pack falls from the upper part of the vehicle is avoided, the operation process is safe, meanwhile, complicated hoisting equipment is not required, the operation flow is simplified, the battery replacement time is short, the efficiency is high, and the energy consumption of the battery replacement operation is saved.

Description

Power conversion method

Technical Field

The specification relates to the technical field of power conversion, in particular to a power conversion method.

Background

Almost no carbon emission is generated in the running process of the electric vehicle, and the electric vehicle is an important means for solving the environmental pollution. The electric power supplement mode of the electric vehicle is mainly divided into: charging mode, extended range mode and battery replacement mode. The power change mode is to drive the vehicle to a power change place and change the battery pack for the vehicle. The power-change mode does not need to stop the vehicle, and is particularly suitable for electric vehicles using large-capacity battery packs.

The tractor (or weighing card) is a large truck or semitrailer which is towed by a tool between the truck head and the trailer. The trailer has large weight, the tractor needs strong traction force, the equipped battery pack has large capacity, and the power conversion mode does not need the vehicle to stop running, thus being an electric energy supplementing mode which is most in line with the power consumption requirement of the tractor.

The existing tractor power conversion method mostly adopts a hoisting power conversion method, and the battery pack is of a box-shaped structure and is detachably arranged at the rear of a tractor cab. Because the weight of the battery pack is large, the risk of falling the battery pack exists in the hoisting process; moreover, the lifting device requires a device such as a portal frame, occupies a large area, and requires a lifting device with a complicated design.

Disclosure of Invention

The invention solves the technical problems of dangerous power conversion process and low power conversion efficiency in the prior art, and provides a power conversion method.

The invention provides the following technical scheme:

the invention provides a battery pack disassembly or assembly of a battery pack for a battery-changing vehicle through a battery-changing trolley, wherein the battery pack is detachably arranged above a vehicle beam of the battery-changing vehicle through a battery bracket, the battery bracket is provided with a supporting mechanism for supporting the battery pack, a sliding platform capable of moving up and down relative to the supporting mechanism and a locking mechanism for locking the battery pack, and the battery-changing method comprises the following steps of:

Before battery disassembly or battery installation, controlling the sliding platform to lift to a high state higher than the supporting mechanism;

after the battery pack of the battery changing vehicle is unlocked or before the battery pack full of electricity is installed, controlling the battery changing trolley to transfer the battery pack relative to the sliding platform;

and after the battery bracket carries the battery pack with full power, controlling the sliding platform to descend to a low-level state lower than the supporting mechanism so as to lock the battery pack with full power.

In the scheme, the battery pack is detached and installed on the battery replacement vehicle through the battery replacement trolley, the battery pack is detachably installed on the battery replacement vehicle through the battery bracket, when the battery pack is detached, the locking mechanism firstly unlocks the battery pack, then the sliding platform is controlled to be lifted to a high-position state higher than the supporting mechanism, so that the battery pack is borne on the sliding platform, and the battery pack is conveniently transported between the battery replacement trolley and the sliding platform in a sliding mode; before the battery pack is installed, the sliding platform is controlled to be lifted to a high-position state higher than the supporting mechanism, the battery pack is transferred to the sliding platform in a sliding mode between the battery pack replacing trolley and the sliding platform, and then the sliding platform is controlled to be lowered to a low-position state lower than the supporting mechanism, so that the battery pack with full power is locked on the battery pack replacing trolley. The battery pack is transported from the side face of the battery bracket through the battery replacement trolley, replacement of the battery pack is achieved, the risk that the battery pack falls when the battery pack is replaced through the hoisting equipment is avoided, the battery bracket equipment is simple, the occupied area is small, the operation is simple, the operation flow is simplified, the battery replacement time is short, the efficiency is high, and the energy consumption of the battery replacement operation is saved.

In the above technical scheme, preferably, the battery bracket is further provided with a driving mechanism for driving the sliding platform to move up and down and unlocking the locking mechanism, the driving mechanism comprises a transition piece arranged on the end face of the battery bracket, which faces the power changing trolley, and the transition piece is used for being matched with a driving piece arranged on the power changing trolley;

before the step of controlling the sliding platform to be lifted to a high-level state higher than the supporting mechanism, the power exchanging method further includes:

the battery changing trolley is controlled to move to a position opposite to the battery bracket so as to align the driving piece with the transition piece.

In the scheme, the driving mechanism is arranged on the battery bracket and used for driving the sliding platform to move up and down and unlocking the locking mechanism, the driving mechanism comprises the transition piece, the transition piece is matched with the driving piece on the power exchange trolley, the supporting mechanism, the sliding platform and the locking mechanism on the battery bracket are driven by the power provided by the power exchange trolley, the sliding platform is moved up and down and the locking mechanism is unlocked, a power source on the power exchange vehicle is not needed or the power source is additionally arranged on the power exchange vehicle, and the structure of the locking mechanism is simplified; when the battery pack is replaced by the battery replacement trolley, the battery replacement trolley moves to the position of the battery replacement trolley, so that the battery replacement trolley is controlled to move to the position opposite to the battery bracket for more accurate battery pack replacement, the driving piece is aligned with the transition piece, the situation that the battery pack is failed to replace or falls due to the fact that the sliding platform is not aligned with the battery replacement trolley is avoided, the safety of the battery replacement process is improved, and the automation of the battery replacement process is realized through the cooperation of the driving piece and the transition piece, the participation in the battery replacement process is not required, and the safety of personnel is improved.

In the above technical solution, preferably, after the step of controlling the battery changing cart to move to a position opposite to the battery bracket, the battery changing method further includes:

and controlling the driving piece to be matched and connected with the transition piece.

In the scheme, the driving piece is controlled to be connected with the transition piece, and then the driving piece drives the driving mechanism to drive the sliding platform to move up and down and the locking mechanism to unlock.

In the above technical solution, more preferably, the driving mechanism further includes a translation assembly movably connecting the locking mechanism to the battery bracket and a lifting assembly lifting the sliding platform to the battery bracket, the transition piece is connected to the translation assembly, and the lifting assembly and the translation assembly are linked through a synchronization assembly;

the step of controlling the sliding platform to be lifted to a high state higher than the supporting mechanism comprises the following steps:

the driving piece is controlled to rotate along a first direction so as to drive the translation assembly to act, and the locking mechanism is moved to an unlocking position;

further controlling the driving piece to rotate along a first direction so as to drive the lifting assembly to act, so that the sliding platform is lifted to a high-position state;

And/or the number of the groups of groups,

the step of controlling the sliding platform to descend to a low-level state lower than the supporting mechanism includes:

the driving piece is controlled to rotate along a second direction so as to drive the lifting assembly to act, and the sliding platform is lowered to a low-level state;

and the driving piece is further controlled to rotate along a second direction so as to drive the translation assembly to act, so that the locking mechanism moves to the locking position.

In the scheme, the locking mechanism is movably connected to the battery bracket through the translation assembly, the sliding platform is connected to the battery bracket in a lifting manner through the lifting assembly, the translation assembly and the lifting assembly are linked through the synchronization assembly, the transition piece is connected with the translation assembly, and when the battery pack is disassembled, the battery changing trolley controls the driving piece to rotate along the first direction so as to drive the translation assembly to act through the transition piece, so that the locking mechanism is moved to the unlocking position; further, the driving piece is controlled to rotate along the first direction, so that the lifting assembly is driven to act through the synchronous assembly, the sliding platform is lifted to a high-level state, the battery pack is conveniently moved out of the sliding platform to the battery changing trolley, the battery transferring efficiency is improved, and the battery pack is detached; when the battery pack is installed, the driving piece is controlled to rotate along the second direction, so that the transition piece and the synchronous component drive the lifting component to act, and the sliding platform is lowered to a low-level state; the control driving piece rotates along the second direction to drive the translation subassembly action through synchronous subassembly, make locking mechanism remove to the locking position, accomplish the installation of battery package, realize the linkage of translation subassembly and lifting unit through transition piece and synchronous subassembly, when realizing the battery package dismantlement, the unblock battery package earlier, then lift to high-order state through control sliding platform, and when the battery package is installed, and after the battery package was placed on sliding platform, control sliding platform descends to low-order state earlier, then the power change process of locking the battery package, the orderly of battery package change process has been guaranteed, and the security of battery package change has been guaranteed, improve the power change efficiency, the power change process is simple, the security is high, and, friction between battery package and contact surface can be reduced through sliding platform, the energy consumption of the power change process has been reduced.

In the above technical solution, more preferably, the step of controlling the battery pack transfer of the battery changing trolley relative to the sliding platform includes:

controlling the power changing trolley to transfer a battery pack with insufficient power from a sliding platform of the power changing trolley;

and/or the number of the groups of groups,

and controlling the power-changing trolley to transfer the full-power battery pack to the sliding platform.

In the scheme, the battery pack is transferred from the sliding platform or to the sliding platform by the battery changing trolley, the battery pack is transferred from the side face of the sliding platform, the sliding transfer mode is easy to operate, the risk of falling of the battery pack is avoided, and the safety is improved.

In the above technical solution, more preferably, the battery bracket is further provided with a limiting plate for limiting the battery pack from two sides of the battery pack along the transferring direction of the battery pack, and the battery changing trolley is provided with a telescopic mechanism capable of moving towards the battery pack in a telescopic manner;

the step of controlling the power changing trolley to transfer the battery pack with the power shortage from the sliding platform of the power changing trolley comprises the following steps:

controlling the telescopic mechanism to extend towards the battery pack and be connected with the battery pack;

Controlling the telescopic mechanism to retract so as to drive the battery pack to be transferred to the battery changing trolley;

and/or the number of the groups of groups,

the step of controlling the power changing trolley to transfer the full battery pack to the sliding platform comprises the following steps of:

controlling the telescopic mechanism to be connected with the battery pack;

controlling the telescopic mechanism to extend out so as to drive the battery pack to be transferred onto the sliding platform;

and controlling the telescopic mechanism to be separated from the battery pack and retracted to an initial position on the battery changing trolley.

In the scheme, the telescopic mechanism is used for realizing the transfer of the battery pack with the power shortage and the installation of the battery pack with the power full, can be connected with the battery pack, realizes the safety in the battery pack transfer process together with the limiting plate, plays a role in protecting and limiting the battery pack, ensures that the battery pack can be conveniently transferred, saves the energy consumption and the power change time caused by shaking or incorrect alignment of the battery pack, improves the efficiency and reduces the energy consumption.

In the above technical scheme, more preferably, the power-changing trolley comprises a base with a travelling mechanism at the bottom and a battery tray arranged on the base in a lifting manner, at least the bottom of the battery tray is provided with a rotating roller, and the telescopic mechanism is arranged at a preset height position on two sides corresponding to the base;

The step of controlling the battery changing cart to move to a position opposite to the battery bracket includes:

controlling the travelling mechanism to drive the battery changing trolley to move to a horizontal position aligned with the battery bracket;

and controlling the battery tray to lift and move to a height position flush with the sliding platform.

In the scheme, the travelling mechanism drives the battery changing trolley to move to the horizontal position aligned with the battery bracket, then the battery tray is controlled to lift and move to the height position aligned with the sliding platform, the battery pack is fixed through the telescopic mechanism with the preset height, then the battery pack sliding platform and the battery tray are transferred, at least the bottom of the battery tray is provided with the rotary roller, and the battery pack also slides on the sliding platform, so that the friction force in the battery pack transfer is reduced, and the energy consumption is reduced.

In the above technical solution, more preferably, the supporting mechanism includes a plurality of supporting blocks disposed on the battery bracket, the locking mechanism includes a plurality of locking members disposed at both sides along the transferring direction of the battery pack, and the translation assembly includes a first screw connected to the transition member, a first slider matched with the first screw, and a first connection plate fixed to the first slider and connected to the locking members at both sides;

The lifting assembly comprises a plurality of eccentric wheels fixed on the inner side wall of the battery bracket;

the synchronous assembly comprises two first driving wheels fixed on the two end positions of the outer side wall of the battery bracket and a first synchronous belt sleeved on the two first driving wheels and fixedly connected with the first connecting plate, and the eccentric wheel and the corresponding first driving wheels are coaxially and rotatably arranged;

the sliding platform comprises a frame body and a plurality of rolling bodies, wherein the frame body is penetrated by the supporting blocks, and the rolling bodies are fixed on the frame body and positioned between the supporting blocks;

controlling the driving piece to rotate along a first direction so as to drive the translation assembly to act, enabling the locking mechanism to move to an unlocking position, and comprising:

the driving piece is controlled to rotate, the transition piece and the first screw rod are driven to synchronously rotate, the first sliding block moves along the first screw rod, and the locking piece is driven to synchronously move through the first connecting plate until the locking piece moves to an unlocking position;

the further control the driving piece to rotate along a first direction so as to drive the lifting assembly to act, so that the sliding platform is lifted to a high-position state, and the method comprises the following steps:

And controlling the driving piece to further rotate, and driving the first synchronous belt and the first driving wheel to synchronously rotate in the moving process of the first connecting plate, so as to drive the eccentric wheel to synchronously rotate until the frame body is propped against to be in a high-position state.

In the scheme, when the driving piece is connected with the transition piece and controlled to rotate along the first direction, the first screw rod connected with the transition piece is driven to rotate, the first sliding block matched with the first screw rod moves along the first screw rod, the first connecting plate fixed on the first sliding block is driven to synchronously move along with the locking pieces at two sides until the locking pieces move to the unlocking position, in the further moving process of the first connecting plate, the first synchronous belt fixedly connected with the first connecting plate is driven to synchronously rotate with the first driving wheel, the first driving wheel drives the eccentric wheel coaxially and rotatably arranged to synchronously rotate until the frame body is propped against to the high state, after unlocking of the battery pack is achieved through the method, the sliding platform is lifted to the high state, the operation mode is simple, the time is saved, the replacement safety of the battery pack is ensured, and the energy consumption is reduced.

In the above technical solution, more preferably, the supporting mechanism includes a plurality of supporting blocks disposed on the battery bracket, the locking mechanism includes a plurality of locking hooks disposed along two sides of the battery pack transferring direction, each locking hook includes two first connecting rods hinged to each other, one ends of the two first connecting rods, which are close to the battery pack, are respectively provided with a locking portion, the translation assembly includes two second sliding blocks hinged to the other ends of the two first connecting rods, respectively, and a first screw rod screwed to the two second sliding blocks, and the two second sliding blocks are disposed to be capable of moving close to or far away from each other;

The lifting assembly comprises two second connecting rods, a second screw rod and two third sliding blocks, one ends of the second connecting rods are mutually hinged and arranged below the sliding platform, the second screw rod is rotatably arranged on the battery bracket, the two third sliding blocks are in threaded fit connection with the second screw rod and are hinged and connected with the other ends of the two second connecting rods, and the two third sliding blocks can be arranged to be close to or far away from each other;

the locking hooks and the lifting assemblies are positioned on the same side and respectively share the first screw rod and the second screw rod;

the synchronous assembly comprises a first gear and a second gear which are respectively connected with the first screw rod and the second screw rod in a synchronous rotation mode, a third screw rod and a third gear which are connected with the first gear and the second gear in a threaded fit mode and are arranged between the first gear and the second gear, and a gear pair and a second synchronous belt which synchronously link the transition piece and the third screw rods on two sides;

The driving piece is controlled to rotate, the transition piece is driven to rotate, the third screw rod is driven to rotate through the gear pair and the second synchronous belt, the third gear is enabled to move to be meshed with the first gear, the first screw rod is driven to synchronously rotate, the two second sliding blocks are enabled to move close to each other, the two locking parts are driven to move close to each other and gradually separate from a locking groove arranged on the battery pack, and the battery pack is unlocked until the locking parts move to an unlocking position;

the driving piece is controlled to further rotate, the third screw rod is driven to further rotate through the transition piece, the gear pair and the second synchronous belt, the third gear is enabled to move to be meshed with the second gear, the second screw rod is driven to synchronously rotate, the two third sliding blocks are enabled to move close to each other, the other ends of the two second connecting rods are driven to move close to each other, the top ends of the two second connecting rods are enabled to approach gradually and push against the frame body until the frame body is pushed against to a high state.

In the scheme, when the driving piece drives the transition piece to rotate along the first direction, the gear pair and the second synchronous belt drive the third screw rod to synchronously rotate, the third gear in threaded fit connection with the third screw rod is driven to axially move along the third screw rod, when the locking hook is at the locking position, the third gear is positioned at the first position of the third screw rod, the third gear is meshed with the first gear, the third gear circumferentially rotates along the threads on the third screw rod and axially moves to drive the first screw rod in synchronous rotation with the first gear to synchronously rotate, the two second sliding blocks in threaded fit connection with the first screw rod are driven to move close to each other, the locking groove arranged on the battery pack is gradually separated, until the locking part moves to the unlocking position, after the locking part moves to the locking position, the third gear is not meshed with the first gear, and continuously moves to the second position on the third screw rod, when the locking hook moves to the second position, the third gear is meshed with the second gear, the second gear is driven to synchronously rotate along the second sliding blocks on the third screw rod, the two sliding blocks are driven to move close to each other, the two sliding blocks are driven to each other, the sliding blocks are gradually move to the top end of the battery pack is guaranteed to be in a high-up state, the sliding frame is easy, the battery is pushed to be in a sliding frame is easy, the frame is pushed to be in a sliding frame to be in a state, and the top is in a sliding frame to be in a state, and the battery is in a sliding frame is in a state, and the frame is in a frame to be in a state, and the battery is in a battery frame is in a state, and the battery can is in a state.

In the above technical solution, more preferably, the supporting mechanism includes a plurality of supporting blocks disposed on the battery bracket, the locking mechanism includes a locking tongue and a driving element that are connected to each other, and the translation assembly includes a second screw rotatably disposed on the battery bracket, a fourth slider in threaded fit connection with the second screw, and a second connection plate fixed on the fourth slider and connected to the locking tongues on both sides;

the lifting assembly comprises a lifting guide piece and a lifting piece which are mutually abutted, the lifting guide piece is connected with the second connecting plate and is provided with a lifting guide surface which is abutted with the lifting piece, and the lifting piece is rotationally connected with the sliding platform;

the synchronous component comprises a synchronous rod connected with two lifting guide pieces positioned on the same side along the transferring direction of the battery pack and an unlocking driving block arranged on the second connecting plate;

the driving piece is fixedly connected with the second screw rod to drive the second screw rod to synchronously rotate;

The control the driving piece rotates along a first direction to drive the translation assembly to act, so that the locking mechanism moves to an unlocking position, and the control comprises the following steps:

the driving piece is controlled to rotate, the second screw rod is driven to synchronously rotate, the fourth sliding block moves along the second screw rod, the unlocking driving block is driven to synchronously move through the second connecting plate, the driving element moves to a limit groove arranged on the unlocking driving block to drive the lock tongue to gradually separate from a fixed plate on the battery pack until the lock tongue is retracted to an unlocking position;

the driving piece is controlled to further rotate, and in the moving process of the second connecting plate, the lifting guide piece is driven to move through the second connecting plate, so that the lifting piece ascends along the lifting guide surface until the frame body is propped and pushed to a high-position state.

In the scheme, the driving piece is fixedly connected with the second screw rod, the driving piece is controlled to rotate along the first direction, the second connecting plate is driven to move through the second screw rod and the fourth sliding block, the second connecting plate drives the unlocking driving block to synchronously move, the driving element moves to a fixed plate which drives the lock tongue to gradually separate from the battery pack along a limiting groove arranged on the unlocking driving block until the lock tongue retracts to an unlocking position, unlocking of the battery pack is achieved, in the moving process of the second connecting plate, the lifting guide piece connected with the second connecting plate is driven to move, the lifting piece which is mutually abutted with the lifting guide piece is enabled to ascend along the lifting guide surface, the lifting of the sliding platform which is rotationally connected with the lifting piece is driven until the frame body is pushed to a high state, after unlocking of the battery pack is achieved through the method, the sliding platform is lifted to the high state, the operation mode is simple, time is saved, the replacement safety of the battery pack is guaranteed, and the energy consumption is reduced.

In the above technical solution, more preferably, the top surface of the battery bracket is provided with a first electric connection device, the bottom surface of the battery pack is provided with a second electric connection device matched with the first electric connection device, the first electric connection device has a compression floating amount along the direction perpendicular to the top surface of the battery bracket,

during the process of disassembling the battery pack, the step of controlling the sliding platform to be lifted to a high state higher than the supporting mechanism further comprises the following steps:

in the process that the lifting assembly acts to lift the sliding platform to a high state, the battery packs are synchronously lifted, so that the first electric connecting device is separated from the second electric connecting device;

during the process of installing the battery pack, the step of controlling the sliding platform to descend to a lower position than the supporting mechanism further comprises:

and in the process of controlling the lifting assembly to act so as to enable the sliding platform to descend to a low-position state, the battery pack descends synchronously, so that the first electric connection device is electrically connected with the second electric connection device.

In the above scheme, the first electric connecting device, the second electric connecting device and the first electric connecting device are used for compressing the floating quantity in the direction vertical to the top surface of the battery bracket, so that the safety of the battery pack is ensured when the battery pack is disassembled and assembled, and the first electric connecting device and the second electric connecting device are not damaged due to direct contact or inaccurate alignment in the process of contacting the first electric connecting device and the second electric connecting device through the compressing floating quantity, so that the battery pack is further lost.

In the technical proposal, more preferably, the number of the power exchanging trolleys is two, namely a first power exchanging trolley and a second power exchanging trolley,

the step of controlling battery pack transfer between the battery changing trolley and the sliding platform comprises the following steps:

controlling the first power changing trolley to transfer a battery pack with insufficient power from a sliding platform of the power changing trolley;

and controlling the second power changing trolley to transfer the full-power battery pack to the sliding platform.

In the scheme, the battery packs with the power shortage are transferred through the first power changing trolley, the second power changing trolley transfers the battery packs with the power full to the sliding platform, so that a double-trolley power changing mode is realized, the time from the power changing trolley to the movement of the battery pack placement position is reduced, and the power changing efficiency is improved.

In the above technical scheme, more preferably, the battery changing trolley is provided with two battery trays, namely a first tray and a second tray, and telescopic mechanisms, namely a first telescopic mechanism and a second telescopic mechanism, are respectively arranged on two sides of the two battery trays,

Controlling the power changing trolley to move to align the first tray with the sliding platform;

controlling the first telescopic mechanism to act so as to transfer the battery pack with the power shortage on the sliding platform to the first tray;

controlling the power changing trolley to move to align the second tray with the sliding platform;

and controlling the second telescopic mechanism to transfer the battery pack full of electricity from the second tray to the sliding platform.

In the scheme, through the mode that sets up first tray and second tray at a battery replacement dolly, carry out the transportation of battery package, shift the battery package of the insufficient power on the sliding platform to first tray, place the battery package of full electricity on the second tray, shift the battery package of full electricity from the second tray to on the sliding platform, do not need the round trip movement of battery replacement dolly, reduced the time of battery replacement dolly from the removal of battery replacement vehicle to battery package place the position department, improved the battery replacement efficiency.

Compared with the prior art, the at least one technical scheme adopted by the invention has the beneficial effects that at least the beneficial effects comprise: the battery bracket is driven to ascend by controlling the lifting component, so that the sliding platform is higher than the supporting mechanism, at the moment, the battery pack is separated from the supporting mechanism in the battery bracket and is borne on the sliding platform, so that the battery pack moves on the sliding platform when entering and exiting the battery bracket, the battery pack can be conveniently pushed in or moved out from the side surface of the battery bracket by using the power conversion method, the risk that the battery pack falls from the upper part of a vehicle is avoided, the operation process is safe, meanwhile, the power conversion method does not need to use complex lifting equipment, the operation flow is simplified, the power conversion time is short, the efficiency is high, the energy consumption of power conversion operation is saved, and the large-scale lifting equipment is not needed to be used by arranging the sliding platform capable of lifting and moving in the tractor, so that the field area is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a scenario of a power conversion method provided in an embodiment of the present application;

fig. 2 is a schematic view of the overall structure of a battery bracket according to an embodiment of the present application;

fig. 3 is a schematic view of a part of a structure of a battery bracket according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a translation assembly according to an embodiment of the present application; the method comprises the steps of carrying out a first treatment on the surface of the

Fig. 5 is a schematic structural diagram of a lifting assembly and a synchronization assembly according to an embodiment of the present application;

FIG. 6 is a schematic view of the overall structure of yet another battery carrier provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a synchronization assembly according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a structure of a synchronization assembly and a lifting assembly according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of the overall structure of another battery carrier provided in an embodiment of the present application;

FIG. 10 is a schematic structural view of a translation assembly and synchronization assembly provided in an embodiment of the present application;

FIG. 11 is a schematic structural view of a lifting assembly according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of a power conversion trolley according to an embodiment of the present application.

Wherein 0000, a power exchange station, 0001, a power exchange vehicle, 0002, a battery bracket, 0003, a charger, 0004, a battery pack, 0005, a control cabinet, 0006, a power exchange vehicle, 00021, a supporting block, 00022, a locking piece, 00023, a sliding platform, 00025, a translation component, 00026, a lifting component, 00027, a synchronization component, 00028, a transition piece, 00029, a first electric connection device, 000221, a lock tongue, 000222, a driving element, 000223, a locking part, 000224, a first connecting rod, 000231, a frame, 000232, a rolling body, 000251, a first screw, 000252, a first slider, 000253, a first connecting plate, 000254, second screw, 000255, fourth slider, 000256, second connecting plate, 000257, first lead screw, 000258, second slider, 000261, eccentric, 000264, lifting guide, 000265, lifting member, 000266, second lead screw, 000267, third slider, 000268, second connecting rod, 000271, first driving wheel, 000272, first timing belt, 000273, timing lever, 000274, first gear, 000275, second gear, 000276, third lead screw, 000277, third gear, 000278, gear pair, 000279, second timing belt, 00061, battery tray, 00062, rotating roller, 00063, base, 00065, telescoping mechanism.

Detailed Description

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways.

It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the application by way of example, and that only the components relevant to the application are shown in the drawings and are not drawn to the number, shape, and size of the components in actual practice.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The tractor is a general large truck or semitrailer which is pulled by tools between the truck head and the truck bed, namely the truck head can be separated from the original truck bed to pull other truck beds, and the truck bed can also be separated from the original truck bed to be pulled by other truck beds. The front of the tractor is called a tractor, the rear of the tractor is called a trailer without traction driving capability, and the trailer is towed by the tractor.

In general, the traction vehicle needs strong traction force, the dead weight of the equipped battery pack can be heavier, the battery pack is detached or installed through the lifting device or the mechanical arm in the existing power conversion mode, when the battery pack is detached, the battery pack is lifted through the lifting device or the mechanical arm and leaves the traction vehicle, the fully charged battery pack is lifted through the lifting device or the mechanical arm and placed on the traction vehicle, however, the battery pack cannot be adapted to the battery pack with large weight in a lifting device or mechanical arm mode, the falling danger of the battery pack can occur in the loading and unloading process, and in addition, the battery pack cannot be well aligned in a lifting device or mechanical arm mode, so that a long time is required for alignment, and the problem of difficulty in taking and placing of the heavy battery is required to be solved.

In the hoisting and power conversion technology in the prior art, the risk that the battery pack falls off easily occurs in the hoisting mode, and in addition, the battery pack is fixed at the rear side of the cab through four corners at the bottom, so that corresponding protection measures are not provided, the risk of toppling over is provided, and a driver is possibly injured by smashing. In addition, the station end needs to be provided with a portal frame, so that the occupied area is large and the design is complex. Moreover, the hoisting is needed to be unlocked by means of an air source on the vehicle, the vehicle end is needed to be refitted, and the air source is needed to be unlocked manually, so that misoperation is easy to occur. Therefore, through trading electric dolly, battery locking mechanism and battery package charging frame, make the battery package transversely move between battery locking mechanism, trade electric dolly and battery package charging frame, and make the battery package slip transfer through sliding platform and rolling mechanism, avoid the risk that drops of battery package, the operation process is safe, save the energy consumption of trading the electric process, and the operation mode of transverse handling is simple, handling efficiency is high, shorten the time of trading electric operation, use rolling mechanism transport battery package, the transport resistance is little, further save the energy consumption of trading the electric process, and do not need the human participation, the security has been improved.

[ example 1 ]

As shown in fig. 1, the embodiment of the application discloses a power exchanging method, wherein the battery pack 0004 is detached or installed on the power exchanging vehicle 0001 through the power exchanging trolley 0006. Specifically, the method comprises the following steps: battery carrier 0002 and battery exchange dolly 0006, battery carrier 0002 sets up on battery exchange vehicle 0001 in this embodiment, bears and fixes battery package 0004, and battery exchange vehicle 0001 carries out the change of battery package 0004 through battery exchange dolly 0006 that sets up in battery exchange station 0000, still is provided with the part that is related to placing and charging of battery package 0004 in the battery exchange station 0000, and the exemplary includes: charger 0003, control cabinet 0005. The battery pack 0004 of the power shortage which is replaced from the replacement vehicle 0001 is charged by the charger 0003, and the battery pack 0004 and the charger 0003 are controlled by the control cabinet 0005.

Preferably, the present embodiment further includes a track disposed at the bottom of the battery exchange cart 0006, and a parking positioning mechanism, wherein the battery exchange cart 0006 and the battery pack 0004 in the battery exchange station 0000 form the battery exchange station 0000, when the battery exchange cart 0001 needs to exchange the battery pack 0004, the battery exchange cart 0001 is driven into a certain position of the battery exchange station 0000 from an inlet of the battery exchange station 0000, the parking positioning mechanism positions the battery exchange cart 0001, and controls the battery exchange cart 0006 to move to the position of the battery pack 0001 for battery pack exchange operation when the battery pack 0004 is exchanged, and after the battery pack exchange operation is completed, the battery exchange cart 0001 is driven out of the battery exchange station 0000 from an outlet of the battery exchange station 0000.

Wherein, battery package 0004 passes through battery bracket 0002 demountable installation in the roof beam top of trading vehicle 0001, is equipped with on the battery bracket 0002 and is used for supporting the supporting mechanism of battery package 0004, can go up and down the sliding platform of removal and be used for locking battery package 0004 with respect to supporting mechanism.

Illustratively, as shown in fig. 1, battery carrier 0002 is mounted above the vehicle beam of battery exchange vehicle 0001, and battery pack 0004 is placed on battery carrier 0002 to power battery exchange vehicle 0001. The battery bracket 0002 is provided with the protective frames arranged on the two sides of the battery bracket 0002 along the sliding in-out direction of the battery pack 0004, after the battery pack 0004 is locked on the electric vehicle 0001 along the sliding in-out direction, the protective frames are arranged on the two sides of the sliding in-out direction of the battery pack 0004, so that dangerous situations such as battery pack lodging and the like in the running process of the vehicle can be effectively prevented, potential safety hazards to a cab are prevented, and the safety of the battery pack, the vehicle and a driver in the running process is effectively ensured.

The power conversion method provided by the embodiment of the application comprises the following steps: before the battery pack disassembling action or the battery pack installing action is carried out, the sliding platform is controlled to be lifted to a high state higher than the supporting mechanism; after the battery pack of the battery change vehicle is unlocked or before the battery pack full of electricity is installed, controlling the battery change trolley to transfer the battery pack relative to the sliding platform; after the battery carrier carries the battery pack with full power, the sliding platform is controlled to be lowered to a low-level state lower than the supporting mechanism so as to lock the battery pack with full power. In this embodiment, the battery pack is detached and installed on the battery exchange vehicle through the battery exchange trolley, the battery pack is detachably installed on the battery exchange vehicle through the battery bracket, when the battery pack is detached from the battery exchange vehicle, the locking mechanism firstly unlocks the battery pack, then the sliding platform is controlled to lift to a high-position state higher than the supporting mechanism, the battery pack is separated from the supporting unit, the sliding platform is used for carrying the battery pack at the moment, the battery pack is conveniently moved out of the battery exchange vehicle in a horizontal movement mode, the battery pack is transported to the battery exchange trolley through the battery exchange trolley relative to the sliding platform, then the battery pack is carried with the full battery pack in the battery exchange trolley, when the battery pack is installed on the battery exchange vehicle, the sliding platform firstly rises to a high-position state higher than the supporting mechanism, then the battery pack is moved to the sliding platform in a horizontal movement mode, then the sliding platform is controlled to descend to a low-position state lower than the supporting mechanism, the battery pack is carried on the supporting mechanism, and the full battery pack is locked on the battery exchange vehicle. According to the battery pack transferring device, the battery pack is transferred from the side face of the battery bracket through the battery changing trolley, replacement of the battery pack is achieved, the risk that the battery pack falls when the battery pack is replaced through the hoisting device is avoided, the battery bracket device is simple in structure, small in occupied area and easy to operate, the operation flow is simplified, the battery changing time is short, the efficiency is high, and the energy consumption of the battery changing operation is saved.

Preferably, the battery bracket is also provided with a driving mechanism for driving the sliding platform to move up and down and unlocking the locking mechanism, the driving mechanism comprises a transition piece arranged on the end face of the battery bracket, which faces the battery changing trolley, and the transition piece is used for being matched with a driving piece arranged on the battery changing trolley; before the step of controlling the sliding platform to lift to a higher position than the supporting mechanism, the power exchanging method in this embodiment further includes: the battery change cart is controlled to move to a position opposite the battery carrier to align the drive member with the transition member. Further, after the step of controlling the battery changing cart to move to a position opposite to the battery bracket, the driving member is also required to be controlled to be cooperatively connected with the transition member in this embodiment.

Specifically, a driving mechanism is arranged on the battery bracket and used for driving the sliding platform to move up and down and unlocking the locking mechanism, the driving mechanism comprises a transition piece, the transition piece is matched with a driving piece on the power changing trolley, the supporting mechanism, the sliding platform and the locking mechanism on the battery bracket are driven by power provided by the power changing trolley, the sliding platform is moved up and down and the locking mechanism is unlocked, an additional power source is not required to be arranged on the power changing vehicle or the locking and unlocking are carried out by means of the power source on the power changing vehicle, and the locking structure is simple in structure and convenient to install; when the battery pack is replaced by the battery replacement trolley, the battery replacement trolley can be moved to the position of the battery replacement trolley, and in order to replace the battery pack more accurately, the battery replacement trolley is controlled to be moved to the position opposite to the battery bracket, so that the driving piece is aligned with the transition piece, the situation that the battery pack is failed to replace or falls due to the fact that the sliding platform is not right to the battery replacement trolley is avoided, the safety of the battery replacement process is improved, and the automaticity of the battery replacement process is realized through the cooperation of the driving piece and the transition piece, the manual participation in the battery replacement process is not needed, and the safety of personnel is improved.

Preferably, the driving mechanism further comprises a translation assembly movably connected with the battery bracket through a locking mechanism and a lifting assembly connected with the battery bracket through a sliding platform in a lifting manner, the transition piece is connected with the translation assembly, and the lifting assembly and the translation assembly are in linkage through a synchronization assembly.

With the above structure, the step of controlling the sliding platform to be lifted to a high state higher than the supporting mechanism in this embodiment includes: the driving piece is controlled to rotate along a first direction so as to drive the translation assembly to act, and the locking mechanism is moved to the unlocking position; further controlling the driving piece to rotate along the first direction so as to drive the lifting assembly to act, so that the sliding platform is lifted to a high-position state; in the above steps, the locking mechanism is unlocked first, then, the sliding platform is lifted to a high state, so that the situation that the sliding platform is lifted to the high state when the battery pack is not unlocked is avoided, the safety of the battery pack is ensured, the automatic unlocking of the battery pack is realized, and the conversion efficiency and the power conversion efficiency of the battery pack are improved.

Further, the step of controlling the sliding platform to descend to a lower position below the supporting mechanism in the embodiment of the present application includes: the driving piece is controlled to rotate along a second direction so as to drive the lifting assembly to act, and the sliding platform is lowered to a low-level state; the driving piece is further controlled to rotate along the second direction so as to drive the translation assembly to act, and the locking mechanism is enabled to move to the locking position.

Wherein the second direction refers to a direction opposite to the first direction. When the control driving piece rotates along the second direction, the lifting assembly is driven to act at first, so that the sliding platform descends to a low-position state, and then the translation assembly is driven to act, so that the locking mechanism moves to the locking position.

Preferably, as shown in fig. 2 to 5, the support mechanism includes a plurality of support blocks 00021 provided on the battery tray 0002, the locking mechanism includes a plurality of locking pieces 00022 provided at both sides in the battery pack transferring direction, and the translation assembly 00025 includes a first screw 000251 connected to the transition piece 00028, a first slider 000252 mated with the first screw 000251, and a first connection plate 000253 fixed to the first slider 000252 and connected to the locking pieces 000222 at both sides; the lift assembly 00026 includes a plurality of eccentrics 000261 secured to the inside wall of the battery bracket 0002; the synchronization assembly 00027 comprises two first driving wheels 000271 fixed on two end positions of the outer side wall of the battery bracket 0002 and a first synchronous belt 000272 sleeved on the two first driving wheels and fixedly connected with the first connecting plate 000253, and the eccentric wheels 000261 are coaxially and rotatably arranged with the corresponding first driving wheels 000271; the slide platform 00023 includes a frame 000231 penetrated by the support blocks 00021 and a plurality of rolling elements 000232 fixed to the frame 000231 and located between the support blocks 00021.

Based on the structure in fig. 2 to 5, in this embodiment of the present application, the driving member is controlled to rotate along a first direction to drive the translation assembly to act, so that the locking mechanism moves to the unlocking position, including: the driving piece is controlled to rotate, the transition piece and the first screw rod are driven to synchronously rotate, the first sliding block moves along the first screw rod, and the locking piece is driven to synchronously move through the first connecting plate until the locking piece moves to the unlocking position. Further control the driving piece to rotate along the first direction to drive the lifting assembly to act, make sliding platform lift to the high-order state, include: the driving piece is controlled to further rotate, and in the moving process of the first connecting plate, the first synchronous belt and the driving wheel are driven to synchronously rotate, and the eccentric wheel is driven to synchronously rotate until the frame body is propped against to be in a high-position state.

Specifically, when the driving piece is connected with the transition piece, the driving piece is controlled to rotate along a first direction, the first screw rod connected with the transition piece is driven to rotate, the first sliding block matched with the first screw rod moves along the first screw rod, the first connecting plate fixed on the first sliding block is driven to synchronously move along with the locking piece at two sides until the locking piece moves from the locking position to the unlocking position, the first connecting plate further moves in the process, the first synchronous belt fixedly connected with the first connecting plate is driven to synchronously rotate with the first driving wheel, the first driving wheel drives the eccentric wheel coaxially arranged in a rotating manner to synchronously rotate, the roller arranged at the end part of the eccentric wheel, far away from the shaft hole, moves in the sliding groove formed in the frame body in the process that the locking piece moves from the locking position to the unlocking position, and after the locking piece moves to the unlocking position, the roller arranged at the end part of the eccentric wheel is driven to rotate, so that the eccentric wheel is far away from the frame body until the frame body is pushed to the high-position state, at the moment, the locking piece moves under the driving of the first connecting plate, the first connecting plate moves to the preset position, the preset position is moved to the preset position, the preset position refers to the high-position, the battery is pushed to the high-position, the battery is replaced, the high-level battery is guaranteed, the time consumption can be reduced, the battery can be safely replaced, and the battery can be safely and the situation can be safely replaced, and the situation can be guaranteed, and the battery can be safely, and the situation can be easily.

Further, in this embodiment of the present application, the driving member is controlled to rotate along the second direction to drive the lifting assembly to move, so that the sliding platform descends to a low-level state, including: the driving piece is controlled to rotate, the first connecting plate and the first screw rod are driven to synchronously rotate, the first sliding block moves along the first screw rod, the first synchronous belt and the first driving wheel are driven to synchronously rotate through the first connecting plate, and the eccentric wheel is driven to synchronously rotate until the sliding platform descends to a low-position state. Further control the driving piece to rotate along the second direction to drive translation subassembly action, make locking mechanism remove to the locking position, include: and in the moving process of the first connecting plate, the locking piece is driven to synchronously move until the locking piece moves to the locking position.

Preferably, as shown in fig. 6 to 8, the supporting mechanism includes a plurality of supporting blocks 00021 provided on the battery bracket 0002, the locking mechanism includes a plurality of locking hooks provided along both sides of the transferring direction of the battery pack 0004, each locking hook includes two first links 000224 hinged to each other, one ends of the two first links 000224 near the battery pack 0004 are respectively provided with locking portions 000223, the translation assembly 00025 includes two second sliders 000258 hinged to the other ends of the two first links 000224 respectively, and a first screw 000257 screw-coupled with the two second sliders 000258, and the two second sliders 000258 are provided to be movable near or far; the lifting assembly 00026 comprises two second connecting rods 000268 with one ends hinged to each other and arranged below the sliding platform 00023, a second screw rod 000266 rotatably arranged on the battery bracket 0002, and two third sliding blocks 000267 in threaded fit connection with the second screw rod 000266 and hinged to the other ends of the two second connecting rods 000268, wherein the two third sliding blocks 000267 are arranged to be capable of moving close to or away from each other, and a plurality of locking hooks and a plurality of lifting assemblies 00026 on the same side respectively share the first screw rod 000257 and the second screw rod 000266; the synchronizing assembly 00027 includes a gear pair 000278 and a second timing belt 000279 that synchronously rotationally connect the first gear 000274 and the second gear 000275 of the first screw 000257 and the second screw 000266, respectively, the third screw 000276 and the third gear 000277 that are screw-fittingly connected and disposed between the first gear 000274 and the second gear 000275, and the third screw 000276 that synchronously links the transition piece 00028 and both sides; the slide platform 00023 includes a frame 000231 penetrated by support blocks, and a plurality of rolling elements 000232 fixed to the frame 000231 and located between the support blocks 00021.

Based on the structure in fig. 5 to 8, in this embodiment of the present application, the driving member is controlled to rotate along a first direction to drive the translation assembly to act, so that the locking mechanism moves to the unlocking position, including: the driving piece is controlled to rotate to drive the transition piece to rotate, the third screw rod is driven to rotate through the gear pair and the second synchronous belt, the third gear is enabled to move to be meshed with the first gear, the first screw rod is driven to synchronously rotate, the two second sliding blocks are enabled to move close to each other, the two locking parts are driven to move close to each other and gradually separate from the locking groove arranged on the battery pack, and the locking parts move to the unlocking position; further control the driving piece to rotate along the first direction to drive the lifting assembly to act, make sliding platform lift to the high-order state, include: the driving piece is controlled to further rotate, the third screw rod is driven to further rotate through the transition piece, the gear pair and the second synchronous belt, the third gear is enabled to move to be meshed with the second gear, the second screw rod is driven to synchronously rotate, the two third sliding blocks are enabled to move close to each other, the other ends of the two second connecting rods are driven to move close to each other, the top ends of the two second connecting rods are enabled to gradually approach and push the frame body until the frame body is pushed to a high-position state.

Specifically, when the driving piece drives the transition piece to rotate along the first direction, the driving piece drives the third screw rod to synchronously rotate through the gear pair and the second synchronous belt, the third gear in threaded fit connection with the third screw rod is driven to axially move along the third screw rod, when the locking hook is positioned at the locking position, the third gear is positioned at the first position of the third screw rod, the third gear is meshed with the first gear, the third gear moves along the third screw rod to drive the first screw rod in synchronous rotation connected with the first gear, the two second sliding blocks in threaded fit connection with the first screw rod are driven to mutually move close to gradually separate from the locking groove arranged on the battery pack until the locking part moves to the unlocking position, after the locking part moves to the locking position, the third gear is not meshed with the first gear, and moves to the second position on the third screw rod, when the locking part moves to the second position, the third gear is meshed with the second gear, the second screw rod which is synchronously and rotatably connected with the second gear is driven to rotate, the two third sliding blocks are driven to move close to each other, the other ends of the two second sliding blocks are driven to move close to each other, so that the top ends of the two second sliding blocks are gradually close to and push against the frame body until the frame body is pushed against to a high state, after unlocking of the battery pack is realized by the method, the sliding platform is lifted to the high state, the operation mode is simple, the time is saved, the replacement safety of the battery pack is ensured, and the energy consumption is reduced

Further, the driving member is controlled to rotate along the second direction to drive the lifting assembly to act, so that the sliding platform is lowered to a low-level state, and the method comprises the following steps: the driving piece is controlled to rotate, the third screw rod is driven to further rotate through the transition piece, the gear pair and the second synchronous belt, the third gear is enabled to move to be meshed with the second gear, the second screw rod is driven to synchronously rotate, the two third sliding blocks are enabled to move away from each other, the other ends of the two second connecting rods are enabled to move away from each other, the top ends of the two second connecting rods are enabled to move away from each other gradually, and the frame body is pulled until the frame body is pulled to a low-position state; further control the driving piece to rotate along the second direction to drive translation subassembly action, make locking mechanism remove to the locking position, include: the driving piece is controlled to further rotate to drive the transition piece to rotate, the third screw rod is driven to rotate through the gear pair and the second synchronous belt, the third gear is enabled to move to be meshed with the first gear, the first screw rod is driven to synchronously rotate, the two second sliding blocks are enabled to move away from each other, the two locking portions are driven to move away from each other and gradually block with the locking grooves formed in the battery pack until the locking portions move to the locking positions.

Preferably, as shown in fig. 9 to 11, the support mechanism includes a plurality of support blocks 00021 provided on the battery bracket 0002, the locking mechanism includes a latch bolt 000221 and a driving element 000222 which are connected to each other, and the translation assembly 00025 includes a second screw 000254 rotatably provided on the battery bracket 0002, a fourth slider 000255 screw-coupled with the second screw 000254, and a second connection plate 000256 fixed to the fourth slider 000255 and connected to the latch bolts 000221 on both sides; the lifting assembly 00026 comprises a lifting guide 000264 and a lifting member 000265 which are abutted with each other, the lifting guide 000264 is connected with the second connecting plate 000256 and has a lifting guide surface abutted with the lifting member 000265, and the lifting member 000265 is rotatably connected with the sliding platform 00023; the synchronizing assembly 00027 includes a synchronizing bar 000273 that connects the two elevation guide surfaces 000264 on the same side in the transferring direction of the battery pack 0004, and an unlocking driving block (not shown) mounted to the second connection plate 000256; the slide platform 00023 includes a frame 000231 penetrated by the support blocks, and a plurality of rolling elements 000232 fixed to the frame 000231 and located between the support blocks 00021; the driving piece is fixedly connected with the second screw 000254 to drive the second screw 000254 to synchronously rotate.

Based on the structure in fig. 9 to 11, in this embodiment of the present application, the control driving member rotates along a first direction to drive the translation assembly to act, so that the locking mechanism moves to the unlocking position, including: the driving piece is controlled to rotate, the second screw rod is driven to synchronously rotate, the fourth sliding block moves along the second screw rod, the unlocking driving block is driven to synchronously move through the second connecting plate, the driving element moves to a fixed plate which drives the lock tongue to gradually separate from the battery pack along a limit groove arranged on the unlocking driving block, and the lock tongue is retracted to an unlocking position; further control the driving piece to rotate along the first direction to drive the lifting assembly to act, make sliding platform lift to the high-order state, include: the driving piece is controlled to further rotate, and in the moving process of the second connecting plate, the lifting guide piece is driven to move through the second connecting plate, so that the lifting piece ascends along the lifting guide surface until the frame body is propped against to be in a high-position state.

Specifically, the driving piece is fixedly connected with the second screw rod, the driving piece is controlled to rotate along the first direction, the second connecting plate is driven to move through the second screw rod and the fourth sliding block, the second connecting plate drives the unlocking driving block to synchronously move, the driving element moves to drive the lock tongue to gradually separate from the fixing plate on the battery pack along the limiting groove arranged on the unlocking driving block until the lock tongue retracts to the unlocking position, unlocking of the battery pack is achieved, in the moving process of the second connecting plate, the lifting guide piece connected with the second connecting plate is driven to move, the lifting piece abutted with the lifting guide piece is enabled to lift along the lifting guide surface, the lifting of the sliding platform connected with the lifting piece in a rotating mode is driven until the frame body is pushed to a high state, after unlocking of the battery pack is achieved through the method, the sliding platform is lifted to the high state, the operation mode is simple, time is saved, and the replacement safety of the battery pack is guaranteed, and energy consumption is reduced.

Further, the driving member is controlled to rotate along the second direction to drive the lifting assembly to act, so that the sliding platform is lowered to a low-level state, and the method comprises the following steps: the driving piece is controlled to rotate, the second screw rod is driven to synchronously rotate, the fourth sliding block is driven to synchronously move along the second screw rod, and in the moving process of the second connecting plate, the lifting guide piece is driven to move through the second connecting plate, so that the lifting piece descends along the lifting guide surface until the frame body is propped against to be in a low-position state; further control the driving piece to rotate along the second direction to drive translation subassembly action, make locking mechanism remove to the locking position, include: the second connecting plate drives the unlocking driving block to synchronously move, so that the driving element moves to the fixing plate which drives the lock tongue to gradually press the battery pack along the limiting groove arranged on the unlocking driving block until the lock tongue stretches out to the locking position.

Preferably, as shown in fig. 3, the top surface of the battery bracket is provided with a first electrical connection device 00029, the bottom surface of the battery pack is provided with a second electrical connection device (not shown in the figure) matched with the first electrical connection device 00029, the first electrical connection device 00029 has a compression floating amount along the direction perpendicular to the top surface of the battery bracket, and during the process of disassembling the battery pack, the step of controlling the sliding platform to be lifted to a high state higher than the supporting mechanism further comprises: in the process that the lifting assembly acts to lift the sliding platform to a high state, the battery packs are synchronously lifted, so that the first electric connecting device is separated from the second electric connecting device; during the process of installing the battery pack, the step of controlling the sliding platform to descend to a low position lower than the supporting mechanism further comprises: in the process of controlling the lifting assembly to move so as to enable the sliding platform to descend to a low-level state, the battery pack descends synchronously, and the first electric connecting device is electrically connected with the second electric connecting device. The first electric connecting device, the second electric connecting device and the first electric connecting device have the compression floating quantity in the direction vertical to the top surface of the battery bracket, so that the safety of the battery pack is ensured when the battery pack is disassembled and assembled, and the first electric connecting device and the second electric connecting device cannot be damaged due to direct contact or inaccurate alignment in the process of contacting through the compression floating quantity, so that the battery pack is further lost.

Preferably, in the embodiment of the present application, the step of controlling the battery pack transferring by the battery changing trolley relative to the sliding platform includes: controlling the power change trolley to transfer a battery pack with insufficient power from a sliding platform of the power change trolley; and/or controlling the power-changing trolley to transfer the full-power battery pack to the sliding platform. Specifically, when the battery pack with the power shortage is detached from the power exchange vehicle, the power exchange trolley is controlled to transfer the battery pack with the power shortage from the sliding platform of the power exchange vehicle, and when the battery pack with the power shortage is mounted on the power exchange vehicle, the power exchange trolley is controlled to transfer the battery pack with the power shortage to the sliding platform.

As shown in fig. 12, the battery bracket 0002 is further provided with a limiting plate (not shown in the figure) for limiting the battery pack 0004 from the front and rear sides of the battery pack 0004 in the transfer direction of the battery pack 0004, and the battery changing trolley 0006 has a telescopic mechanism 00065 which can be arranged to be telescopic and movable toward the battery pack 0004; the step of controlling the power changing trolley to transfer the battery pack with the insufficient power from the sliding platform of the power changing trolley comprises the following steps of: the telescopic mechanism is controlled to extend towards the battery pack and is connected with the battery pack; controlling the telescopic mechanism to retract so as to drive the battery pack to be transferred to the battery changing trolley; the step of controlling the power changing trolley to transfer the full-power battery pack to the sliding platform comprises the following steps of: the control telescopic mechanism is connected with the battery pack; controlling the extension of the telescopic mechanism to drive the battery pack to be transferred to the sliding platform; and controlling the telescopic mechanism to be separated from the battery pack and retracted to an initial position on the battery changing trolley.

Further, the battery changing trolley 0006 comprises a base 00063 with a travelling mechanism at the bottom and a battery tray 00061 arranged on the base in a lifting manner, at least the bottom of the battery tray 00061 is provided with a rotating roller 00062, and the telescopic mechanism 00065 is arranged on the preset height positions of the two corresponding sides of the base. The preset height is a height at which the vertical distance from the telescopic mechanism 00065 to the battery tray 00061 matches the vertical distance from the sliding platform on the battery bracket 0002 to the component on the battery pack to which the telescopic mechanism is connected.

In an embodiment of the present application, the step of controlling the battery changing cart to move to a position opposite to the battery carrier includes: the running mechanism is controlled to drive the battery changing trolley to move to a horizontal position aligned with the battery bracket; and controlling the battery tray to lift and move to a height position flush with the sliding platform.

Specifically, drive through running gear and trade electric dolly and remove to the horizontal position department that aligns with the battery bracket, then control battery tray lift and remove to the high position that flushes mutually with slide bracket, through predetermineeing high telescopic machanism, fix the battery package, then shift between battery package slide bracket and the battery tray, the battery tray has the rotatory roller in the bottom at least, the battery package also slides on the rolling element on slide bracket, makes the frictional force in the battery package shift reduce, has reduced the energy consumption.

Preferably, the number of the battery replacing trolleys is two, and the battery replacing trolleys are a first battery replacing trolley and a second battery replacing trolley respectively, and the step of controlling battery pack transfer between the battery replacing trolleys and the sliding platform comprises the following steps: controlling a first power changing trolley to transfer a battery pack with insufficient power from a sliding platform of the power changing trolley; and controlling the second power-changing trolley to transfer the full-power battery pack to the sliding platform.

Specifically, through the battery package that first trading electric dolly shifts the insufficient voltage, the second trades electric dolly and shifts the battery package of full electricity to the mode on the sliding platform realizes two dolly and trades electric mode, has reduced trading electric dolly and has been put the time of the removal of position department from trading electric vehicle to battery package, has improved and has traded electric efficiency.

Preferably, the battery changing trolley is provided with two battery trays, namely a first tray and a second tray, and telescopic mechanisms, namely a first telescopic mechanism and a second telescopic mechanism, are respectively arranged on two sides of the two battery trays, and the step of transferring the battery pack between the battery changing trolley and the sliding platform is controlled by the battery changing trolley comprises the following steps: controlling the power changing trolley to move to align the first tray with the sliding platform; controlling the first telescopic mechanism to act so as to transfer the battery pack with the power shortage on the sliding platform to the first tray; controlling the power changing trolley to move to the second tray to be aligned with the sliding platform; and controlling the second telescopic mechanism to transfer the battery pack full of electricity from the second tray to the sliding platform.

Specifically, through the mode that sets up first tray and second tray at a battery replacement dolly, carry out the transportation of battery package, shift the battery package of the insufficient power on the sliding platform to first tray, place the battery package of full electricity on the second tray, shift the battery package of full electricity to on the sliding platform from the second tray, do not need the round trip movement of battery replacement dolly, reduced the time of battery replacement dolly from changing the removal of electric vehicle to battery package place the position department, improved the battery replacement efficiency.

[ example 2 ]

Embodiment 2 discloses another specific implementation manner of the power exchanging method, and embodiment 2 is based on embodiment 1, in order to further simplify the operation manner and save the operation time, the power exchanging trolley 0006 in this embodiment may be configured as two power exchanging trolleys, including: the third battery changing trolley and the fourth battery changing trolley are respectively arranged at the left side and the right side of the battery changing vehicle along the length direction of the vehicle body, and the corresponding battery pack charging frames are arranged at the left side and the right side of the corresponding battery changing vehicle along the length direction of the vehicle body to prevent battery packs, the battery changing station 0000, a charger and a control cabinet.

When the battery packs are replaced through the third power exchange trolley and the fourth power exchange trolley, the power exchange trolley is stopped at a certain position, after the third power exchange trolley is aligned with the power exchange trolley, the battery packs with the power shortage on the power exchange trolley are transferred to the battery tray of the third power exchange trolley, then the battery packs with the power shortage are transferred to the battery pack charging rack to be charged, meanwhile, the fourth power exchange trolley on the opposite side moves the battery packs with the power shortage from the battery pack charging rack to the position where the battery packs with the power shortage are carried by the battery packs to be aligned with the power exchange trolley, and after the battery packs with the power shortage on the power exchange trolley are transferred by the third power exchange trolley, the fourth power exchange trolley transfers the battery packs with the power shortage to the power exchange trolley to complete power exchange. Through the mutual cooperation of the third power changing trolley and the fourth power changing trolley, the power changing time is saved, the interference among the power changing trolleys is avoided, and the power changing efficiency is improved.

[ example 3 ]

Embodiment 3 discloses another specific implementation manner of the power exchanging method, in embodiment 3, in order to more conveniently perform power exchanging and save energy consumption based on embodiment 1 or 2, power exchanging stations 0000 are symmetrically arranged on two sides of a power exchanging vehicle, and two power exchanging trolleys are arranged on each side, wherein the power exchanging trolleys comprise a left first power exchanging trolley, a left second power exchanging trolley, a right first power exchanging trolley and a right second power exchanging trolley, and the battery pack 0004 can be detached and installed by two cooperation between the four power exchanging trolleys.

The left power-changing trolley and the right power-changing trolley are matched for example, and the explanation is given. Specifically, the same actions as those of the third power changing trolley and the fourth power changing trolley in embodiment 2 are achieved, wherein one power changing trolley can be a left power changing trolley or a right power changing trolley, the left power changing trolley is taken as an example to detach the battery pack 0004 with the power shortage on the power changing trolley, the battery pack is placed on the battery pack charging rack on the corresponding side, the other power changing trolley can be a right power changing trolley or a left power changing trolley, the left power changing trolley corresponds to the left power changing trolley, the right power changing trolley is moved to the power changing trolley from the battery pack carried on the battery pack charging rack on the corresponding side, and the full power battery pack 0004 is installed on the power changing trolley 0001 to finish power changing.

It should be noted that, when the left power-changing trolley and the right power-changing trolley are detached or installed on the battery pack of one power-changing vehicle, the left power-changing trolley and the right power-changing trolley can be moved to other power-changing vehicles to perform power-changing operation. By the scheme in the embodiment, the operation time is further reduced, so that the power conversion efficiency is improved, and the energy consumption is reduced.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment focuses on differences from other embodiments. In particular, for the method embodiments described later, since they correspond to the system, the description is relatively simple, and reference should be made to the description of some of the system embodiments.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The battery pack is detachably mounted above a beam of the battery change vehicle through a battery bracket, and the battery bracket is provided with a supporting mechanism for supporting the battery pack, a sliding platform capable of moving up and down relative to the supporting mechanism and a locking mechanism for locking the battery pack, and the battery change method comprises the following steps of:

2. The power changing method according to claim 1, wherein the battery bracket is further provided with a driving mechanism for driving the sliding platform to move up and down and unlocking the locking mechanism, the driving mechanism comprises a transition piece arranged on the end face of the battery bracket facing the power changing trolley, and the transition piece is used for being matched with a driving piece arranged on the power changing trolley;

3. The power exchanging method according to claim 2, further comprising, after the step of controlling the power exchanging dolly to move to a position opposite to the battery carrier:

4. The method of claim 2, wherein the drive mechanism further comprises a translation assembly movably connecting the locking mechanism to the battery carrier and a lifting assembly lifting the sliding platform to the battery carrier, the transition piece is connected to the translation assembly, and the lifting assembly and the translation assembly are in linkage through a synchronization assembly;

and/or the number of the groups of groups,

5. The method of claim 4, wherein the step of controlling the battery pack transfer of the battery change cart relative to the sliding platform comprises:

and/or the number of the groups of groups,

6. The power exchanging method according to claim 5, wherein the battery bracket is further provided with a limiting plate for limiting the battery pack from both sides of the battery pack in the battery pack transferring direction, and the power exchanging trolley is provided with a telescopic mechanism which is arranged to be capable of moving in a telescopic manner towards the battery pack;

and/or the number of the groups of groups,

controlling the telescopic mechanism to be connected with the battery pack;

7. The power changing method according to claim 6, wherein the power changing trolley comprises a base with a travelling mechanism at the bottom and a battery tray arranged on the base in a lifting manner, at least the bottom of the battery tray is provided with a rotary roller, and the telescopic mechanism is arranged at a preset height position on two corresponding sides of the base;

8. The method of claim 4, wherein the support mechanism comprises a plurality of support blocks provided on the battery carrier, the locking mechanism comprises a plurality of locking pieces provided on both sides in the battery pack transferring direction, and the translation assembly comprises a first screw connected to the transition piece, a first slider mated with the first screw, and a first connection plate fixed to the first slider and connected to the locking pieces on both sides;

9. The power exchanging method according to claim 4, wherein the supporting mechanism comprises a plurality of supporting blocks arranged on the battery bracket, the locking mechanism comprises a plurality of locking hooks arranged along two sides of the transferring direction of the battery pack, each locking hook comprises two first connecting rods hinged with each other, one ends of the two first connecting rods, which are close to the battery pack, are respectively provided with locking parts, the translation assembly comprises two second sliding blocks hinged with the other ends of the two first connecting rods respectively, and a first screw rod in threaded fit connection with the two second sliding blocks, and the two second sliding blocks are arranged to be capable of moving close to or far away from each other;

the synchronous assembly comprises a first gear and a second gear which are respectively connected with the first screw rod and the second screw rod in a synchronous rotation way, a third screw rod and a third gear which are connected in a threaded fit way and are arranged between the first gear and the second gear, and a gear pair and a second synchronous belt which synchronously link the transition piece and the third screw rods on two sides;

10. The method of claim 4, wherein the support mechanism comprises a plurality of support blocks disposed on the battery bracket, the locking mechanism comprises a lock tongue and a driving element which are connected with each other, and the translation assembly comprises a second screw rotatably disposed on the battery bracket, a fourth slider in threaded fit connection with the second screw, and a second connection plate fixed on the fourth slider and connected to the lock tongue on both sides;

11. The method of claim 1, wherein the top surface of the battery carrier is provided with a first electrical connection means, the bottom surface of the battery pack is provided with a second electrical connection means that mates with the first electrical connection means, the first electrical connection means has a compressive float in a direction perpendicular to the top surface of the battery carrier,

12. The power exchanging method according to claim 1, wherein the number of the power exchanging trolleys is two, namely a first power exchanging trolley and a second power exchanging trolley,

13. The power exchanging method according to claim 1, wherein the power exchanging trolley is provided with two battery trays, namely a first tray and a second tray, and two sides of the two battery trays are respectively provided with a telescopic mechanism, namely a first telescopic mechanism and a second telescopic mechanism,