CN112721725A

CN112721725A - Quick battery replacement system of electric household automobile

Info

Publication number: CN112721725A
Application number: CN202110180649.6A
Authority: CN
Inventors: 陈维加
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-04-30

Abstract

The invention discloses a quick power exchange system for electric household vehicles, including an electric household vehicle with replaceable battery packs and a power exchange station. The packs are all provided with the same set of screw holes and connection plugs, and the chassis bracket of the car is fixedly adapted to the connecting battery rack corresponding to the battery pack; the swap station includes a car aisle with a car lifting device, and a charging station located on at least one side of the car aisle. The charging mechanism includes a charging stand for arranging the charging piles in the column compartment and a battery-changing trolley conveying mechanism for sending the battery-changing trolley to the grid where the charging piles are located. Use to lift the car so that the battery pack can be replaced by the battery swap trolley. The invention realizes the standardization of the battery pack specifications of the electric household vehicle, which is replaced by the same power exchange station, has high power exchange efficiency and extremely low cost, and completely solves the problem that the electric household vehicle cannot be popularized.

Description

Quick battery replacement system of electric household automobile

Technical Field

The invention relates to a quick battery replacement system of an electric household automobile.

Background

The change of automobile oil into electricity is a major strategic policy of the nation for reducing a large amount of oil imports and an important national policy of energy conservation, emission reduction and green development. Compared with the traditional automobile, the electric automobile can realize zero emission in the driving process, has low noise and has far lower driving cost than the traditional automobile. Through years of efforts, the change of oil to electricity of buses in China is steadily promoted, and electric household automobiles are rapidly developed.

Although the state has come out of a plurality of electric automobile supporting policies and electric automobiles also have a plurality of advantages, the electric automobiles still cannot be popularized comprehensively, and the root cause for restricting the comprehensive popularization of the electric automobiles is summarized into five points: endurance, charging, cost, safety, and residual value. The key point of the five fundamental reasons is the charging problem, which breaks the technical development bottleneck of the current battery pack. At present, the charging modes of the electric automobile have two types: directly charging and replacing the battery. The problem with direct charging is: according to the current battery technology, the battery needs to be fully charged for 1-2 hours on the premise of ensuring the service life of the battery, and if the mode of increasing the charging current to reduce the charging time is adopted, the service life of the battery is greatly shortened. This is also the most fundamental problem that electric vehicles cannot replace fuel vehicles. However, if the mode of replacing the battery is adopted, the problem of long waiting time does not exist, but the battery has the problems of multiple specifications, large capacity difference, complex and expensive battery replacement equipment and non-uniform specifications, so that the battery cannot be popularized and applied.

The electric household automobile occupies the largest amount in the existing electric automobiles, the existing electric household automobiles adopt the direct charging mode on the premise of the existing battery technology, the fully charged running mileage of the reasonably configured battery is about 300km-400km, and if the charging needs 1-2 hours each time, the existing fuel automobile cannot be replaced.

In order to solve the problem of changing oil into electricity of the electric household automobile, the only solution at present still adopts a mode of changing batteries, and a plurality of types of electric automobile changing models have been released by part of the existing automobile enterprises. However, a series of actions of positioning, disassembling, moving, installing in a charging pile and the like of the existing battery replacement mode are completed by matching a plurality of very complicated devices. Particularly, the mechanism for assembling and disassembling the battery pack is a fixed complex mechanical device, after the automobile is driven in, the automobile must be aligned and calibrated through the xyz three-axis direction, and the whole process can be completed through the cooperation of the plurality of independent complex mechanisms. And one battery replacement device only serves one automobile with a single specification, and the device is complex and expensive, so that the automobile battery replacement mode can only be applied in a limited area, such as a taxi and the like. The power station with integrated partial vehicles and enterprises is huge in investment and impossible to be distributed in a high density, so that the power station cannot be popularized comprehensively.

In order to solve the problem of motorization of the automobile, a standardized battery replacement system is required to be used, the standardized battery replacement system comprises a standardized battery pack series and standard battery replacement equipment capable of charging and replacing batteries of battery packs of different specifications in the series so as to meet the requirement of charging and replacing the batteries of all electric household automobiles, and a battery replacement station adopts unmanned operation, is standardized in construction, low in investment cost, low in management cost and short in construction period. Therefore, the problem of changing the fuel and electricity of the automobile can be thoroughly solved only by constructing a standardized unmanned electricity changing station in China and covering the station with a large number of circuits and a whole network, and the electric household automobile can be popularized and popularized really.

Disclosure of Invention

The invention aims to: the utility model provides a swift system of trading of electronic domestic automobile, its battery package that can realize the electronic domestic automobile of different specifications standardizes to can adopt same set to trade the electrical equipment and change, and it is efficient to change, and the cost is extremely low, easily promotes, thereby solves the difficult problem of present electronic domestic automobile popularization.

The technical scheme of the invention is as follows: the utility model provides a swift system of trading of electronic domestic automobile, includes the electronic domestic automobile of taking removable battery package and trades the power station, its characterized in that:

the battery pack is manufactured into a plurality of sizes and specifications corresponding to the models of the existing domestic automobiles at all levels to form a standard battery pack group, and the battery packs are provided with the same screw through hole group and the same connecting plug; it should be noted that the battery packs in the standard battery pack are only different in size and shape, and have the same shape and the same common center point. The same of the screw through hole groups refers to that the sizes, the numbers and the arrangement forms of the screw through holes in the screw through hole groups, the positions and the distances of the screw through holes relative to the center point of the battery pack are the same, and the same of the connecting plugs refers to that the sizes and the distances of the connecting plugs relative to the center point of the battery pack are the same.

A connecting battery frame matched with a corresponding battery pack in a standard battery pack group is fixed on a chassis support of each level of electric household automobile, and is provided with a surrounding frame for accommodating the matched battery pack, a connecting socket butted with a connecting plug on the battery pack and a battery frame screw locking hole group corresponding to a screw through hole group on the battery pack, and the battery frame screw locking hole group is used for being matched with a screw to longitudinally fix the battery pack to the connecting battery frame; it should be noted that although the size of the battery rack is different according to the size of each vehicle type, the screw locking hole set and the connection socket of the battery rack are limited by the screw through hole set and the connection plug of the battery pack, and are also completely the same.

Trade the power station including be equipped with car elevating gear's car pavement, locate the charging mechanism and trade the electric dolly of car pavement at least one side, wherein:

the battery replacing trolley comprises a base provided with a walking mechanism and a battery pack supporting table driven to lift by a trolley lifting mechanism arranged on the base, and a plurality of screw automatic loading and unloading mechanisms arranged corresponding to screws on the battery pack are arranged in the battery pack supporting table;

the charging mechanism comprises a charging vertical frame, wherein unit cells are longitudinally arranged on the charging vertical frame, the top of at least one unit cell is provided with a charging pile, a charging socket which is butted with a connecting plug on any battery pack in a standard battery pack group and a charging pile screw locking hole group which corresponds to a screw through hole group of the battery pack are arranged on the charging pile, and the charging pile screw locking hole group is used for being matched with a screw to longitudinally fix the battery pack to the charging pile; the charging mechanism also comprises a conveying vertical frame positioned beside the charging vertical frame, a hoisting mechanism arranged on the conveying vertical frame and a lifting platform driven by the hoisting mechanism to lift, and is used for carrying the battery replacing trolley and conveying the battery replacing trolley to the position of the cell where each charging pile is positioned;

the automobile lifting device is used for lifting the electric household automobile so as to replace the battery pack by the battery replacing trolley.

In the design of the present invention, the car lifting device can be selected from the currently known devices, and of course, as a preferred form, we have further designed it as follows:

the automobile lifting device comprises a front lifting unit and a rear lifting unit which are arranged on an automobile walkway, the front lifting unit comprises a front lifting plate for supporting automobile front wheels and a front lifting mechanism for driving the front lifting plate to lift, the rear lifting unit comprises a rear lifting plate for supporting automobile rear wheels and a rear lifting mechanism for driving the rear lifting plate to lift, an automobile front wheel baffle is arranged on the front lifting plate, and an automobile rear wheel baffle can be arranged on the rear lifting plate; the front translation driving mechanism is arranged corresponding to the front lifting unit and used for driving the front lifting unit to move forwards and backwards, and/or the rear translation driving mechanism is arranged corresponding to the rear lifting unit and used for driving the rear lifting unit to move forwards and backwards, so that the distance between the front lifting plate and the rear lifting plate can be adjusted, and the front translation driving mechanism can adapt to the wheel distances of different-grade electric household automobiles.

Furthermore, the charging mechanism comprises two charging vertical frames, the opposite surfaces of the charging vertical frames are provided with single longitudinal unit grids, and the conveying vertical frame is arranged between the two charging vertical frames and is fixed with or connected with the two charging vertical frames at two sides into a whole; and at least one unit grid at the bottom of the charging stand is a battery replacing trolley parking grid, the travelling mechanism of the battery replacing trolley is an electric travelling mechanism, and a battery replacing trolley charging interface for charging the electric travelling mechanism is arranged in the battery replacing trolley parking grid.

Furthermore, in order to facilitate the transportation of the charging mechanism, the charging mechanism is further designed in a modular manner, and the charging mechanism is fixedly arranged in a charging box body, such as a container, so that the charging mechanism can be conveniently and rapidly transported to a destination for use. Therefore, the invention also comprises a charging box body, wherein the charging mechanism is arranged in the charging box body, and the charging box body is provided with an inlet and an outlet of the battery replacing trolley and a maintenance access.

Furthermore, the screw through hole group is formed by a plurality of screw through holes which are arranged in a central symmetry mode, the symmetry center of the screw through hole group is the center point of the battery pack, and the connecting plug is located on the symmetry center of the screw through hole group. In practice, the battery pack is usually made in a rectangular parallelepiped shape, so that the center point of the battery pack, i.e., the center point of the rectangle on the top or bottom surface thereof, is designed to have the connection plug at this position.

Furthermore, the traveling mechanism of the battery replacing trolley is a universal traveling mobile platform with an AI artificial intelligence path finding function.

Furthermore, the trolley lifting mechanism is an electric lifting mechanism, such as a common worm and gear lifter driven by a servo motor, or a pneumatic or hydraulic lifting mechanism.

In practical implementation, the trolley lifting mechanism can be directly electrically connected with the AI module on the battery replacing trolley travelling mechanism and controlled to act by the AI module.

Further, in the vehicle lifting device of the present invention, both the front lifting mechanism and the rear lifting mechanism are electric lifting mechanisms, such as servo cylinders, or pneumatic or hydraulic lifting mechanisms, and both the front translation driving mechanism and the rear translation driving mechanism are electric telescopic mechanisms, such as servo cylinders, or pneumatic or hydraulic telescopic mechanisms. The front lifting mechanism and the rear lifting mechanism, and the front translation driving mechanism and the rear translation driving mechanism are connected and controlled by a PLC to act.

Furthermore, the front lifting plate is connected with the automobile front wheel baffle through a front wheel baffle overturning motor and used for driving the automobile front wheel baffle to stand upright or overturn relative to the front lifting plate.

Furthermore, the rear lifting plate is connected with an automobile rear wheel baffle through a rear wheel baffle overturning motor and used for driving the automobile rear wheel baffle to stand upright or overturn relative to the rear lifting plate.

Specifically, the front lifting mechanism is two front lifting servo cylinders which are symmetrically arranged in the left-right direction of the width direction of the automobile walkway, the two front lifting servo cylinders are fixed on a front seat, and the movable ends of the two front lifting servo cylinders are connected with a front lifting plate through a front connecting frame; the two rear lifting servo cylinders are fixed on the rear seat, and the movable ends of the two rear lifting servo cylinders are connected with the rear lifting plate through a rear connecting frame; the front translation driving mechanism is two front translation servo cylinders respectively corresponding to the two front lifting servo cylinders, and the movable end of each front translation servo cylinder is fixed with the corresponding front seat or integrally designed; the rear translation driving mechanism is two rear translation servo cylinders respectively corresponding to the two rear lifting servo cylinders, and the movable end of each rear translation servo cylinder is fixed with the corresponding rear seat or integrally designed.

Furthermore, a lifting guide mechanism is arranged between the lifting platform and the conveying vertical frame. In a specific embodiment, a plurality of guide rollers are arranged around the lifting platform, guide rails for the guide rollers to roll are arranged on the conveying vertical frame, or guide sleeves can be fixed around the lifting platform, guide rods matched with the guide sleeves are arranged on the conveying vertical frame, and the purpose is to further ensure that the lifting platform is stably lifted.

Furthermore, a plurality of guide positioning columns which are the same in number and arrangement are arranged on the battery packs in the standard battery pack group, battery frame guide positioning holes matched with the guide positioning columns are formed in the connecting battery frame, and charging pile guide positioning holes matched with the guide positioning columns are formed in the charging piles.

It should be noted that the automatic screw assembling and disassembling mechanism on the battery pack supporting table of the battery replacing trolley is a known technology, namely a screwdriver driven by a servo motor to rotate, which is already well applied to the existing automobile battery replacing equipment, and the detailed description is not provided in the invention.

The overall working principle of the invention is as follows:

according to the classification of the models of the existing electric household automobiles, the battery pack is prepared into the following five dimensional specifications:

	class of vehicle type	Dimension (length x width) unit mm
			Battery pack A0	A0	1800*1400
Battery pack A	A	1900*1400
			Battery pack B	B	2000*1500
Battery pack C	C	2200*1500
			Battery pack D	D	2300*1600

The five battery packs form a standard battery pack group, and each battery pack can be applied to any household electric household automobile manufactured according to the corresponding automobile grade standard. The connecting battery rack is matched with the corresponding battery pack in specification, and the battery packs of different automobile grades have different dimensions and the connecting battery rack also has different dimensions.

When the electric household automobile needs to be charged, the electric household automobile enters an automobile walkway of a charging station and moves to the position of an automobile lifting device to stop, the charging process is completed by matching two charging trolleys, one trolley is used for discharging electricity, namely the battery pack of the electric household automobile is detached, and the other trolley is used for packaging the charged corresponding battery into the electric household automobile. At ordinary times, the two power change trolleys are parked in the corresponding power change trolley parking grids at the bottom of the charging vertical frame to be charged through the power change trolley charging interfaces.

The power exchange station firstly acquires the vehicle type grade and the corresponding wheel track information corresponding to the electric household vehicle to be exchanged through the existing identification equipment, transmits the information to the PLC of the vehicle lifting device, and then adjusts the front translation driving mechanism and/or the rear translation driving mechanism according to the wheel track requirement, so that the distance between the front lifting plate and the rear lifting plate can adapt to the wheel tracks of different grades of electric household vehicles.

After the electric household automobile drives into the automobile walkway, the front wheel of the electric household automobile is stopped by the automobile front wheel baffle on the front lifting plate, and the rear wheel of the electric household automobile reaches the rear lifting plate. And then under the driving of the front lifting mechanism and the rear lifting mechanism, the whole electric household automobile is lifted to a certain height by the front lifting plate and the rear lifting plate so as to drive in the battery replacing trolley for disassembling the battery pack.

Meanwhile, the other side of the battery replacing trolley for containing electricity takes down the corresponding battery pack from the corresponding cell of the charging stand and transports the battery pack to the electric household automobile to wait.

After the battery replacing trolley for disassembling the battery pack drives into the bottom of the electric household automobile, the position of the battery pack is automatically identified and aligned through AI, then the battery pack supporting table on the battery pack supporting table is driven to jack up to a certain height through the trolley lifting mechanism, and the automatic screw assembling and disassembling mechanisms on the battery replacing trolley can be in one-to-one corresponding contact with screws on the battery pack. And then the screws are disassembled under the action of the automatic screw assembling and disassembling mechanism, and the battery pack at the bottom of the automobile falls on a battery pack supporting table of the battery replacing trolley under the action of gravity. At this time, although the battery pack is detached from the battery connecting frame, the battery pack is still located in the enclosure frame connected to the battery connecting frame, so that the front and rear lifting units are still driven to lift the electric home car upwards by a certain height so that the battery pack can be moved out laterally after being detached from the enclosure frame.

The battery replacing trolley bearing the battery pack immediately leaves the bottom of the automobile and carries the battery pack to the empty cell of the charging stand for charging.

And the standby battery replacing trolley for charging immediately drives into the bottom of the automobile to complete the installation of the battery pack. After the battery pack is installed, the automobile can be driven away from the battery replacement station.

The invention has the advantages that:

1. the battery replacement system provided by the invention is a standardized system with a battery charging and replacement function, and comprises unified battery replacement equipment for electric household automobiles, a battery pack specification design, a high-efficiency and quick battery replacement trolley and a charging mechanism, so that the unified battery charging and replacement for battery packs of different specifications of all electric household automobiles can be met, and the battery replacement station can be completely operated without people. The standardized power station is extremely low in construction cost in practical implementation. Therefore, the problem of changing oil into electricity of the household automobile can be solved only by constructing a standardized electricity changing station in China, and the electric household automobile can be popularized and popularized really.

2. The charging mechanism of the battery replacement station can be arranged in the charging box body, the structure is compact, the occupied area is small, the charging mechanism can be directly and integrally transported to a required place for arrangement after being assembled, and the charging mechanism is immediately put into use, so that a large number of places where the battery replacement station is not convenient to build originally are covered, and the battery replacement requirements of the conventional electric household automobile are greatly met.

3. The automobile lifting device is specially designed, has a simple structure, and can finish lifting of the automobile without correcting and positioning the electric household automobile through a complex mechanism, so that the high efficiency and the rapidness of battery replacement are improved.

4. The battery replacing trolley is specially designed, and the battery packs of all specifications in the standard battery pack group can be installed by only one battery replacing trolley without aligning and calibrating the electric household automobile, so that the mechanism of the whole battery replacing system is simplified, and the cost is saved. The whole system can completely realize the automatic battery replacement of the full-specification electric household automobile, the battery pack can be replaced within several minutes under normal conditions, and the problem of endurance is solved.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a schematic overall structure (layout of a single-side charging mechanism) of an embodiment of the present invention;

FIG. 2 is a perspective view of a single battery pack (corresponding to a class D vehicle) in a standard battery pack assembly;

fig. 3 is a top plan view of the battery pack of fig. 2;

FIG. 4 is a diagram illustrating a comparison of the specifications of battery packs in a standard battery pack assembly;

fig. 5 is a schematic perspective view of a bottom connection battery rack of an electric household vehicle (class D vehicle) suitable for the battery pack of fig. 2;

FIG. 6 is a bottom view of FIG. 5;

FIG. 7 is a front view of the battery changing trolley alone;

FIG. 8 is a top view of the battery changing cart;

FIG. 9 is a front view of FIG. 1;

FIG. 10 is a top view of FIG. 1;

fig. 11 is a schematic perspective view of a charging pile;

FIG. 12 is a bottom view of FIG. 11;

FIG. 13 is a schematic view of an isolated perspective of the vehicle lift;

FIG. 14 is a schematic perspective view of another embodiment;

fig. 15 is a top view of fig. 14.

Wherein: 1. a battery pack; D. the battery pack corresponds to the D-level vehicle; C. the battery pack corresponds to the C-level vehicle; B. the battery pack corresponds to the B-level vehicle; A. the battery pack corresponds to the A-level vehicle; a0, a battery pack corresponding to A0 level vehicle; 1a, connecting a plug; 1b, perforating a screw; 1c, guiding a positioning column; 2. an electric home automobile; 3. connecting a battery frame; 3a, enclosing a frame; 3b, connecting a socket; 3c, guiding a positioning hole by the battery rack; 3d, locking holes for battery frame screws; 4. an automobile walkway; 5. battery changing trolley; 5a, a base; 5b, a trolley lifting mechanism; 5c, a battery pack supporting table; 5d, an automatic screw assembling and disassembling mechanism; 6. a charging stand; 6a, a unit cell; 7. charging piles; 7a, a charging socket; 7b, guiding the charging pile to a positioning hole; 7c, charging pile screw locking holes; 8. a conveying vertical frame; 9. a hoisting mechanism; 10. a lifting platform; 11. a front lifter plate; 12. a rear lifter plate; 13. a front wheel fender of the automobile; 14. maintaining the access; 15. a front wheel baffle overturning motor; 16. a rear wheel baffle overturning motor; 17. a rear wheel fender of the vehicle; 18. a front lifting servo cylinder; 19. a front seat; 20. a front connecting frame; 21. a rear lifting servo cylinder; 22. a rear seat; 23. a rear connecting frame; 24. a front translation servo cylinder; 25. and the servo cylinder is translated backwards.

Detailed Description

Example 1: an embodiment of the quick battery replacement system for an electric home automobile provided by the invention is described below with reference to fig. 1 to 15:

the electric household vehicle comprises an electric household vehicle 2 with a replaceable battery pack 1, a connecting battery frame 3 arranged on a chassis bracket of the electric household vehicle 2, a battery pack 1 matched with the connecting battery frame 3 and a battery changing station; the battery replacement station consists of an automobile walkway 4 provided with an automobile lifting device, a charging mechanism arranged on one side of the automobile walkway 4, a charging box body positioned on the periphery of the charging mechanism and a battery replacement trolley 5.

The power driving part of the electric household automobile related to the invention is not improved, and only the bottom connecting battery frame 3 and the matched battery pack 1 are improved.

Firstly, the battery pack 1 is described with reference to fig. 2 to 4, in the invention, the battery pack 1 is manufactured into five size specifications in total corresponding to the current class a0-D household automobile model to form a standard battery pack group, and the same screw through hole group and connecting plug 1a are arranged on the battery packs 1.

The battery pack 1 is in the shape of a conventional rectangular parallelepiped, and is different in specification and size. As shown in fig. 3, it can be seen from the top of the battery pack 1 that the screw through hole set in this embodiment is composed of eight screw through holes 1b arranged in central symmetry, the center of symmetry is the center point of the battery pack 1, and the connection plug 1a is located on the center of symmetry of the screw through hole set. The eight screw through holes 1b are distributed on the top of the battery pack 1 in four groups, namely an upper group, a lower group, a left group and a right group, each group has two screw through holes 1b, and the connecting line of the two screw through holes 1b is parallel to the corresponding edge of the battery pack 1.

Referring to fig. 4, it can be seen that the standard pack size is smaller from the pack D corresponding to the class D vehicle to the pack a0 corresponding to the class a0 vehicle. The number and arrangement of the screw through holes 1b in the screw through hole group of the battery pack, and the positions and distances of the screw through holes 1b with respect to the connection plug 1a are the same.

The battery pack 1 of the present invention is longitudinally fixed to a connecting battery holder 3 of a chassis holder of an electric home car 2 using screws. Since the specifications of the battery packs 1 corresponding to the respective stages of the electric home automobiles 2 are different, the specifications of the connecting battery racks 3 are also different. Referring to fig. 5 to 6, a connection battery holder 3 of a class D vehicle adapted to the battery pack 1 (corresponding to the class D vehicle) shown in fig. 2 to 3 will be described. The periphery of the body of the connecting battery frame 3 is riveted and fixed on a chassis support of the electric household automobile 2, and an enclosing frame 3a for accommodating and matching the battery pack 1, a connecting socket 3b butted with a connecting plug 1a on the battery pack 1 and a battery frame screw locking hole group corresponding to a screw through hole group on the battery pack 1 are arranged on the connecting battery frame 3 and are used for matching screws to longitudinally fix the battery pack 1 on the connecting battery frame 3. The battery frame screw locking hole group also comprises eight battery frame screw locking holes 3d, and the arrangement form is the same as that of the screw through hole group on the battery pack 1. Although the connecting battery rack 3 corresponds to the size of each model of vehicle and has different dimensions, the screw locking hole group and the connecting socket 3b of the connecting battery rack are uniformly limited by the screw through hole group and the connecting plug 1a of the battery pack 1 and are completely the same.

In addition, as shown in fig. 2, 3, 5 and 6, the battery packs 1 in the standard battery pack group are all provided with a plurality of guiding positioning columns 1c which are the same in number and arrangement, in this embodiment, four guiding positioning columns 1c are provided at four corners of the top of the battery pack 1, a battery frame guiding positioning hole 3c which is matched with the guiding positioning column 1c is provided on the connecting battery frame 3, and the guiding positioning columns 1c are matched with the battery frame guiding positioning holes 3c, so that the reliability of installation and positioning of the battery pack 1 on the connecting battery frame 3 can be improved.

The power conversion trolley 5 in the power conversion station is described with reference to fig. 7 and 8:

the battery replacing trolley 5 is composed of a base 5a provided with a travelling mechanism, a battery pack supporting table 5c driven to ascend and descend by a trolley lifting mechanism 5b arranged on the base 5a, and eight screw automatic loading and unloading mechanisms 5d arranged in the battery pack supporting table 5c and corresponding to screws (the number of the screws corresponds to the number of the screw through holes 1 b) on the battery pack 1. The screw automatic loading and unloading mechanism 5d is a known technique, that is, a screw driver rotated by a servo motor is accommodated in a groove formed in the battery pack support table 5 c.

In this embodiment, the trolley lifting mechanism 5b is four electric lifting mechanisms, i.e. a common worm and gear lifter driven by a servo motor.

In this embodiment, the traveling mechanism on the base 5a adopts the currently mature universal traveling mobile platform with the AI artificial intelligence road finding function, and can realize relatively accurate fixed-point displacement. The AI module in the walking mechanism is electrically connected with the trolley lifting mechanism 5b to control the action thereof.

The charging mechanism in the present invention will be described with reference to fig. 1, 9 and 10: the charging mechanism is arranged in a rectangular charging box, but the charging box is transparent in the figure. Two charging stands 6 are fixed in the charging box. All arrange into a column by six cell 6a from lower to upper setting on these two upright frame 6 that charge's the face in opposite directions, and wherein except the cell 6a of division bottom, the top all is equipped with fills electric pile 7 in the five cell 6a in the top. The middle position of the two charging vertical frames 6 is provided with a trolley replacing conveying mechanism which is composed of a conveying vertical frame 8 connected with the two charging vertical frames 6 at two sides into a whole, a hoisting mechanism 9 arranged on the conveying vertical frame 8 and a lifting platform 10 driven by the hoisting mechanism 9 to lift, and is used for carrying the trolley replacing 5 and conveying the trolley to the position of the cell 6a where each charging pile 7 is located. The hoisting mechanism 9 adopts a hoist driven by a servo motor.

In this embodiment, a lifting guide mechanism is installed between the lifting platform 10 and the vertical conveying frame 8, that is, a plurality of guide rollers (not shown) are disposed around the lifting platform 10, and a guide rail (not shown) for the guide rollers to roll is disposed on the vertical conveying frame 8.

The two charging vertical frames 6 are symmetrically positioned at the left side and the right side of the battery replacing trolley conveying mechanism, and the cell lattices 6a at the bottoms of the two charging vertical frames 6 are battery replacing trolley parking lattices which are both parked at one battery replacing trolley 5. And a charging interface of the battery changing trolley for charging the battery changing trolley 5 is arranged in the battery changing trolley stopping grid. And both sides of the box body are also provided with a service man access 14, as shown in figure 1. In order to facilitate the charging trolley 5 to enter and exit the charging box body, the lower part of the charging box body is provided with three charging trolley inlet and outlet which respectively correspond to the charging trolley parking grids at the bottoms of the two charging vertical frames 6 and the charging trolley conveying mechanism. And as box trades power station, the inside or outside power supply (omitted in the figure) for charging stake 7 and trading trolley charging interface power supply obviously trades in the box.

The charging pile 7 is described with particular reference to fig. 11 and 12. The charging pile 7 is erected in the cell 6a by adopting four supporting columns, is provided with a charging socket 7a which is in butt joint with the connecting plug 1a on any battery pack 1 in the standard battery pack group and a charging pile screw locking hole group corresponding to the screw through hole group of the battery pack 1, and is used for matching screws to longitudinally fix the battery pack 1 to the charging pile 7. The charging pile screw locking hole group is composed of eight charging pile screw locking holes 7c, and the arrangement form is the same as that of the screw punching hole group on the battery pack 1, see fig. 3 and 12. And fill and then be equipped with on the electric pile 7 with the direction reference column 1c complex of battery package 1 fill electric pile direction locating hole 7 b. The cooperation of direction reference column 1c and the stake direction locating hole 7b of charging can improve the reliability of battery package 1 installation and location on charging stake 7.

Referring to fig. 13, the following specifically describes the vehicle lifting device according to the present invention:

the automobile walkway comprises a front lifting unit, a rear lifting unit, a front translation driving mechanism and a rear translation driving mechanism which are arranged on an automobile walkway 4.

The front lifting unit consists of a front lifting plate 11 for supporting the front wheels of the automobile and a front lifting mechanism for driving the front lifting plate 11 to lift, and the rear lifting unit consists of a rear lifting plate 12 for supporting the rear wheels of the automobile and a rear lifting mechanism for driving the rear lifting plate 12 to lift. In addition, in this embodiment, the front lifting plate 11 is connected to the front wheel fender 13 through two front wheel fender turnover motors 15 at two sides, so as to drive the front wheel fender 13 to stand upright or turn over relative to the front lifting plate 11. And the rear lifting plate 12 is connected with an automobile rear wheel baffle 17 through two rear wheel baffle overturning motors 16 at two sides, so as to drive the automobile rear wheel baffle 17 to stand upright or overturn relative to the rear lifting plate 12.

The front lifting mechanism is two front lifting servo cylinders 18 which are arranged in bilateral symmetry in the width direction of the automobile walkway 4, the two front lifting servo cylinders 18 are both fixed on a front seat 19, and the movable ends of the two front lifting servo cylinders 18 are both connected with a front lifting plate 11 through a front connecting frame 20. The specific structure of each front lifting servo cylinder 18 in this embodiment is known technology, a top plate is used to fix a servo motor, two parallel guide rods are fixed between the top plate and a front seat 19 below the top plate, and nut blocks are assembled on the two guide rods to be in threaded fit with screw rods at the output end of the servo motor. The whole nut block moves up and down under the drive of the servo motor to serve as the movable end of the whole front lifting servo cylinder 18. The front translation driving mechanism is two front translation servo cylinders 24 respectively corresponding to the two front lifting servo cylinders 18, the structure of each front translation servo cylinder 24 is the prior art, a transverse guide rail is adopted, a servo motor is fixed at one end of the guide rail, a nut block is arranged on the guide rail in a sliding mode and is matched with a screw thread at the output end of the servo motor to serve as the movable end of the front translation servo cylinder 24, and in the embodiment, the nut block is actually designed with the corresponding front seat 19 in an integrated mode.

The rear lifting mechanism is two rear lifting servo cylinders 21 symmetrically arranged in the width direction of the automobile walkway 4, the two rear lifting servo cylinders 21 are fixed on a rear seat 22, and the movable ends of the two rear lifting servo cylinders 21 are connected with a rear lifting plate 12 through a rear connecting frame 23. Similarly, in this embodiment, the specific structure of each rear lift servo cylinder 21 is the same as that of the front lift servo cylinder 18, a top plate is also used to fix the servo motor, two parallel guide rods are fixed between the top plate and the rear seat 22 below the top plate, and nut blocks are assembled on the two guide rods and are in threaded fit with the screw rods at the output end of the servo motor. The whole nut block moves up and down under the drive of the servo motor to serve as a movable end of the whole rear lifting servo cylinder. The rear translation driving mechanism is two rear translation servo cylinders 25 respectively corresponding to the two rear lifting servo cylinders 21, the structure of each rear translation servo cylinder 25 is the same as that of the front translation servo cylinder 24, a transverse guide rail is also adopted, a servo motor is fixed at one end of the guide rail, a nut block is arranged on the guide rail in a sliding mode and is matched with a screw at the output end of the servo motor in a threaded mode to serve as the movable end of the rear translation servo cylinder 25, and in the embodiment, the nut block is actually designed with the corresponding rear seat 22 in an integrated mode.

The front translation driving mechanism drives the front lifting unit to translate, the rear translation driving mechanism is used for driving the rear lifting unit to translate, and the final purpose is to adjust the distance between the front lifting plate 11 and the rear lifting plate 12, so that the front translation driving mechanism can adapt to the wheel track of different-grade electric household automobiles. The front lifting mechanism and the rear lifting mechanism, and the front translation driving mechanism and the rear translation driving mechanism are connected and controlled by a PLC to act. Similarly, the front wheel baffle turnover motor 15 and the rear wheel baffle turnover motor 16 are both electrically connected with the PLC.

When the electric household automobile 2 needs to be charged, the electric household automobile drives into the automobile walkway 4 of the charging station and moves to the position of the automobile lifting device to stop, the charging process is completed by matching two charging trolleys 5, one is used for discharging electricity, namely the battery pack 1 of the electric household automobile 2 is discharged, and the other is used for loading the corresponding charged battery pack 1 into the electric household automobile 2. At ordinary times, the two power change trolleys 5 are parked in corresponding power change trolley parking grids at the bottom of the charging vertical frame 6 and are charged through the power change trolley charging interfaces.

The power exchange station firstly acquires the vehicle type grade and the corresponding wheel track information corresponding to the electric household vehicle 2 to be exchanged through the existing identification equipment, transmits the information to the PLC of the vehicle lifting device, and then adjusts the front translation driving mechanism and/or the rear translation driving mechanism according to the wheel track requirement, so that the distance between the front lifting plate 11 and the rear lifting plate 12 can adapt to the wheel tracks of the electric household vehicles 2 in different grades.

After the electric household automobile 2 drives into the automobile walkway 4, the front wheel is stopped by the automobile front wheel baffle 13 on the front lifting plate 11, and the rear wheel of the automobile reaches the rear lifting plate 12. Then, under the driving of the front lifting mechanism and the rear lifting mechanism, the whole electric household automobile 2 is lifted to a certain height by the front lifting plate 11 and the rear lifting plate 12, so that the battery replacing trolley 5 for disassembling the battery pack 1 can drive in.

Meanwhile, the other side of the battery replacing trolley 5 for charging takes the corresponding battery pack 1 down from the corresponding cell 6a of the charging stand 6 and transports the battery pack to the electric household automobile 2 for waiting.

After the battery replacing trolley 5 for disassembling the battery pack 1 drives into the bottom of the electric household automobile 2, the position of the battery pack 1 is automatically identified and aligned through AI, then the battery pack supporting table 5c on the battery pack supporting table is driven to jack up to a certain height through the trolley lifting mechanism 5b, and the screw automatic assembling and disassembling mechanisms 5d on the battery replacing trolley 5 can be in one-to-one corresponding contact with screws on the battery pack 1. Then the screw is detached under the action of the screw automatic assembly and disassembly mechanism 5d, and the battery pack 1 at the bottom of the automobile falls on the battery pack support table 5c of the battery replacing trolley 5 under the action of gravity. At this time, although the battery pack 1 is detached from the battery connecting frame 3, it is still located in the enclosure frame 3a of the battery connecting frame 3, so that the front and rear lifting units are still driven to lift the electric home car 2 upward by a certain height so that the battery pack 1 can be moved out laterally after being detached from the enclosure frame 3 a.

The battery replacing trolley 5 bearing the battery pack 1 leaves the bottom of the automobile immediately, and carries the battery pack 1 to the empty cell 6a of the charging stand 6 for charging.

The standby power changing trolley 5 for charging immediately drives into the bottom of the automobile to complete the installation of the battery pack 1. After the battery pack 1 is installed, the automobile can be driven away from the power exchanging station.

Example 2: referring to fig. 14 and 15, another embodiment of the present invention is shown, which is different from embodiment 1 in that two sets of charging mechanisms disposed in a charging box are symmetrically disposed on the left and right sides of an automobile walkway 4, and four battery replacing trolleys 5 are disposed to replace batteries, so that the battery pack 1 has more abundant charging storage space and is more convenient and faster to replace. The description of each mechanism part of the present embodiment can be referred to embodiment 1.

It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.

Claims

1. The utility model provides a swift system of trading of electronic domestic automobile, includes electric domestic automobile (2) and the power station that trades of taking removable battery package (1), its characterized in that:

the battery packs (1) are manufactured into a plurality of sizes and specifications corresponding to the models of the existing domestic automobiles at all levels to form standard battery pack groups, and the battery packs (1) are provided with the same screw through hole groups and connecting plugs (1 a);

a connecting battery frame (3) which is matched with a corresponding battery pack (1) in a standard battery pack group is fixed on a chassis support of each level of electric household automobile (2), and a surrounding frame (3 a) for accommodating the matched battery pack (1), a connecting socket (3 b) which is butted with a connecting plug (1 a) on the battery pack (1) and a battery frame screw locking hole group which corresponds to a screw through hole group on the battery pack (1) are arranged on the connecting battery frame (3) and are used for matching screws to longitudinally fix the battery pack (1) to the connecting battery frame (3);

trade power station including be equipped with car elevating gear's car pavement (4), locate car pavement (4) at least one side charge mechanism and trade electric dolly (5), wherein:

the battery replacing trolley (5) comprises a base (5 a) provided with a travelling mechanism and a battery pack supporting table (5 c) driven to lift by a trolley lifting mechanism (5 b) arranged on the base (5 a), and a plurality of screw automatic loading and unloading mechanisms (5 d) arranged corresponding to screws on the battery pack (1) are arranged in the battery pack supporting table (5 c);

the charging mechanism comprises a charging vertical frame (6), wherein unit grids (6 a) are longitudinally arranged on the charging vertical frame, a charging pile (7) is arranged at the top in at least one unit grid (6 a), a charging socket (7 a) which is butted with a connecting plug (1 a) on any battery pack (1) in a standard battery pack group and a charging pile screw locking hole group corresponding to a screw through hole group of the battery pack (1) are arranged on the charging pile, and the charging pile screw locking hole group is used for being matched with a screw to longitudinally fix the battery pack (1) to the charging pile (7); the charging mechanism further comprises a battery replacing trolley conveying mechanism, the battery replacing trolley conveying mechanism comprises a conveying vertical frame (8) positioned beside the charging vertical frame (6), a lifting mechanism (9) arranged on the conveying vertical frame (8) and a lifting platform (10) driven by the lifting mechanism (9) to lift, and the battery replacing trolley conveying mechanism is used for carrying the battery replacing trolley (5) and conveying the battery replacing trolley to the position of a cell (6 a) where each charging pile (7) is positioned;

the automobile lifting device is used for lifting the electric household automobile (2) so as to replace the battery pack (1) of the electric trolley (5).

2. The quick battery replacement system for the electric household automobile according to claim 1, wherein the automobile lifting device comprises a front lifting unit and a rear lifting unit which are arranged on the automobile walkway (4), the front lifting unit comprises a front lifting plate (11) for supporting the front wheels of the automobile and a front lifting mechanism for driving the front lifting plate (11) to lift, the rear lifting unit comprises a rear lifting plate (12) for supporting the rear wheels of the automobile and a rear lifting mechanism for driving the rear lifting plate (12) to lift, and an automobile front wheel baffle (13) is arranged on the front lifting plate (11); the front translation driving mechanism is arranged corresponding to the front lifting unit and used for driving the front lifting unit to move forwards and backwards, and/or the rear translation driving mechanism is arranged corresponding to the rear lifting unit and used for driving the rear lifting unit to move forwards and backwards, and is used for adjusting the distance between the front lifting plate (11) and the rear lifting plate (12), so that the front translation driving mechanism can adapt to the wheel track of different-grade electric household automobiles.

3. The quick battery replacement system for the electric household automobile as claimed in claim 1, wherein the charging mechanism comprises two charging stands (6), each of the charging stands (6) is provided with a single longitudinal row of cells (6 a) on the opposite surface, and the conveying stand (8) is arranged between the two charging stands (6) and fixed to or connected with the two charging stands (6) at the two sides; and at least one unit lattice (6 a) at the bottom of the charging stand (6) is a trolley parking lattice, a travelling mechanism of the trolley (5) is an electric travelling mechanism, and a trolley charging interface for charging the electric travelling mechanism is arranged in the trolley parking lattice.

4. The quick battery replacement system for the electric household automobile as claimed in claim 1 or 3, further comprising a charging box, wherein the charging mechanism is disposed in the charging box, and the charging box is provided with an inlet and outlet of a battery replacement trolley and a maintenance access (14).

5. The quick battery replacement system for the electric home automobile according to claim 1, wherein the screw through hole set is composed of a plurality of screw through holes (1 b) arranged in a central symmetry manner, a symmetry center of the screw through hole set is a center point of the battery pack (1), and the connecting plug (1 a) is located on the symmetry center of the screw through hole set.

6. The fast replacing system for the electric household automobile as claimed in claim 1, wherein a traveling mechanism of the replacing trolley (5) is a universal traveling moving platform with an AI artificial intelligence path finding function.

7. The quick battery replacement system for electric home automobiles according to claim 1, wherein the trolley lifting mechanism (5 b) is an electric lifting mechanism, or a pneumatic or hydraulic lifting mechanism.

8. The quick battery replacement system for the electric home automobile according to claim 2, wherein the front lifting mechanism and the rear lifting mechanism are both electric lifting mechanisms, or pneumatic or hydraulic lifting mechanisms; the front translation driving mechanism and the rear translation driving mechanism are also electric telescopic mechanisms or pneumatic or hydraulic telescopic mechanisms.

9. The quick battery replacement system for the electric household automobile as claimed in claim 2, wherein the front lifting plate (11) is connected to the front wheel fender (13) through a front wheel fender turnover motor (15) for driving the front wheel fender (13) to stand upright or turn over relative to the front lifting plate (11).

10. The quick battery replacement system for the electric home automobile as claimed in claim 2, wherein the rear lifter plate (12) is connected to a rear wheel guard (17) of the automobile through a rear wheel guard turnover motor (16) for driving the rear wheel guard (17) of the automobile to stand upright or turn over relative to the rear lifter plate (12).

11. The quick battery replacement system for the electric household automobile according to claim 8, wherein the front lifting mechanism is two front lifting servo cylinders (18) symmetrically arranged in the width direction of the automobile walkway (4), the two front lifting servo cylinders (18) are both fixed on a front seat (19), and the movable ends of the two front lifting servo cylinders (18) are both connected with the front lifting plate (11) through a front connecting frame (20); the rear lifting mechanism is two rear lifting servo cylinders (21) which are symmetrically arranged in the width direction of the automobile walkway (4), the two rear lifting servo cylinders (21) are fixed on a rear seat (22), and the movable ends of the two rear lifting servo cylinders (21) are connected with a rear lifting plate (12) through a rear connecting frame (23); the front translation driving mechanism is two front translation servo cylinders (24) which are respectively arranged corresponding to the two front lifting servo cylinders (18), and the movable end of each front translation servo cylinder (24) is fixed with the corresponding front seat (19) or integrally designed; the rear translation driving mechanism is two rear translation servo cylinders (25) which are respectively arranged corresponding to the two rear lifting servo cylinders (21), and the movable end of each rear translation servo cylinder (25) is fixed with the corresponding rear seat (22) or integrally designed.

12. The quick battery replacement system for the electric household automobile as claimed in claim 1, wherein a lifting guide mechanism is installed between the lifting table (10) and the conveying stand (8).

13. The quick battery replacement system for the electric home automobile according to claim 1, wherein a plurality of guiding positioning columns (1 c) with the same number and arrangement are arranged on the battery packs (1) in the standard battery pack group, a battery frame guiding positioning hole (3 c) matched with the guiding positioning column (1 c) is formed in the connecting battery frame (3), and a charging pile guiding positioning hole (7 b) matched with the guiding positioning column (1 c) is formed in the charging pile (7).