CN213948200U

CN213948200U - High-efficient system of trading of electronic commercial car

Info

Publication number: CN213948200U
Application number: CN202022765717.9U
Authority: CN
Inventors: 陈维加
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-13
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a high-efficient electric system that trades of electronic commercial car, including taking the electronic commercial car of removable battery package and trading the station, its characterized in that: the bottom of the crossbeam of the electric commercial vehicle is provided with a transverse battery compartment, one end of the crossbeam of the electric commercial vehicle is provided with a compartment door, and the other end wall opposite to the compartment door is provided with a connecting socket butted with a battery pack plug; the battery compartment is internally provided with a compartment inner rail which is matched with the battery pack roller; the battery changing station comprises a battery changing trolley and a charging room, a frame rail matched with the battery pack roller is arranged on the battery changing trolley, and a battery pack push-pull mechanism is arranged on the frame rail; the charging upright frame is arranged in the charging room, the cell grids are arranged in the charging upright frame in an array mode, the charging pile for charging the battery pack is arranged in the cell grids, and the charging trolley conveying mechanism for conveying the charging trolley to the charging pile is further arranged. The utility model discloses a battery package specification of the electronic commercial car of different tonnage is standardized, is changed by same set of battery replacement equipment, and it is efficient to trade, and the cost is extremely low, easily promotes, has thoroughly solved the unable problem of popularizing of electronic commercial car.

Description

High-efficient system of trading of electronic commercial car

Technical Field

The utility model relates to a high-efficient electric system that trades of electronic commercial car.

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 small-sized vehicles 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 fundamental reason for restricting the comprehensive popularization of the electric automobiles is that the electric automobiles have fatal weaknesses: the driving mileage is short, and the charging time is long. The technical development bottleneck of the current battery pack is broken away, and the key points are finally attributed to the charging problem. At present, the electric cars have two modes: and charging and replacing the battery. Problem with charging mode: the fuel oil vehicle is fully charged for 2 hours on the premise of ensuring the service life of the battery according to the current battery technology, which is the most fundamental problem that the electric vehicle cannot replace the fuel oil vehicle; the battery replacement mode can replace the battery quickly, but has the problems of multiple battery specifications, large capacity difference, complex battery replacement equipment, high cost and non-uniform specification, so that the battery replacement mode cannot be popularized and applied.

Commercial vehicles are vehicles for transporting people and goods in terms of design and technical features. Commercial vehicles include all trucks and passenger cars with more than 9 seats, such as various trucks, semi-tractors, buses, engineering vehicles and the like, and belong to the category of commercial vehicles. From the technical architecture, the device comprises a girder, a power system, a running system and a steering system.

Compared with the household small-sized vehicle, the problem of electrically driving the commercial vehicle which accounts for 12.13% of the motor vehicle holding capacity but accounts for more than 48.14% of the pollution emission of the motor vehicle is more prominent because of the following aspects:

1) on the premise of the prior battery technology, the fully charged running mileage of the battery reasonably configured by the current electric commercial vehicle is about 300km-400km by considering the factors of the weight, the volume, the price and the like of the battery, and if two hours are needed for charging every time, the freight industry is not acceptable for transport vehicles.

2) The adoption fills electric pile and directly fills to on-vehicle battery package and need occupy a parking stall for a long time, and as is known, the space that commercial car itself occupy all will be far more than ordinary domestic small-size car, hardly builds and popularizes like the charging station of domestic small-size car in a large number, leads to the demand of charging of electronic commercial car to realize hardly.

3) For a commercial vehicle with a large tonnage, if the same charging mode as that of the existing electric household small vehicle is adopted, the electric quantity of the electric commercial vehicle is larger, the charging current is also larger, compared with the situation that the driving range of the electric household small vehicle is 400 kilometers, the battery pack capacity of the electric household small vehicle is 10 times that of the electric household small vehicle, the charging current is 10 times that of the electric household small vehicle, the electric household small vehicle is charged by using the existing national standard direct current charging gun, and at least 6 charging guns can meet the requirement under the same charging time. This has greatly increased the charging station construction investment of commercial car, and the actual operation is also very troublesome. These have all limited the popularity and spread of electric commercial vehicles to a great extent.

In order to solve the problem of changing oil into electricity of the commercial vehicle, the only current solution is to adopt an electricity changing mode. Of course, even if the battery replacement mode is adopted, the following problems need to be solved:

most of commercial vehicles using the battery replacement mode are trucks at present, the battery replacement equipment is only used for commercial vehicles with single specifications, the equipment is complex and expensive, and the battery replacement mode of the commercial vehicles can only be applied in limited areas, such as ports and mines. And the common commercial vehicle is between 1 and 49 tons, and the specification of the battery pack is more. Therefore, it cannot be popularized.

In order to solve the problem of electromotion of all commercial vehicles, a standardized battery replacement system is required to be used, the standard charging equipment capable of charging battery packs of different specifications is included, so that the requirement of charging and replacing the battery packs of all the electric commercial vehicles in different specifications is met, and the battery charging and replacing station is unmanned, standardized construction is adopted, the input cost is low, the management cost is low, and the construction period is short. Therefore, the problem of oil-to-electricity conversion of the commercial vehicle can be solved only by constructing a standardized unmanned charging and converting station in China and covering the station with a large number of networks and a whole network, and the electric commercial vehicle can be popularized and popularized really.

Disclosure of Invention

The utility model discloses the purpose is: the utility model provides a high-efficient system of trading of electronic commercial car, its battery package specification that can realize different tonnage electronic commercial cars standardizes to can adopt same set of trade electrical equipment to change, and change efficiently, the cost is extremely low, easily promotes, thereby solves the difficult problem of present electronic commercial car popularization.

The technical scheme of the utility model is that: high-efficient electric system that trades of electronic commercial car, including the electronic commercial car of taking removable battery package with trade the power station, its characterized in that:

the bottom of a crossbeam of the electric commercial vehicle is provided with a transverse battery compartment, one end of the crossbeam is provided with a compartment door, and the other end wall opposite to the compartment door is provided with a connecting socket butted with a plug arranged at the front end of a battery pack; the battery compartment is internally provided with an inner compartment rail, and the battery pack is provided with a roller or a sliding block matched with the inner compartment rail;

the battery pack is cuboid, is manufactured into a plurality of sizes according to different carrying capacities of the electric commercial vehicle, and corresponds to battery bins with different sizes;

trade the power station and including trading electric dolly and the room that charges, wherein:

the battery pack pushing and pulling mechanism comprises a first translation driving mechanism and a translation block driven by the first translation driving mechanism, and the translation block and the bottom of the tail end of the battery pack are provided with key groove structures which can be embedded and connected;

the charging house comprises a house body and at least one charging vertical frame arranged in the house body, wherein a plurality of unit cells are arranged on the charging vertical frame in an array manner, a charging pile is arranged in at least one unit cell, the charging pile comprises a support and a pile rail which is arranged on the support and transversely slides a battery pack, the pile rail is also matched with a roller or a sliding block on the battery pack, and a charging socket which is butted with a plug on the battery pack is arranged on a plugging panel at the end of the pile rail; an inlet and an outlet of the battery replacing trolley and an access of maintenance personnel are arranged on the house body;

the electric power replacing trolley conveying mechanism comprises a travelling mechanism and a conveying frame arranged on the travelling mechanism, and a lifting platform driven by a lifting mechanism to lift is arranged on the conveying frame and used for carrying the electric power replacing trolley and conveying the electric power replacing trolley to the position of each cell where each charging pile is located.

In the design of the utility model, the charging pile can be designed separately corresponding to the battery pack with each size specification; and for the battery packs with different sizes and specifications, the battery packs need to be conveyed to the corresponding charging piles by the battery replacing trolley for charging. Of course, in a further design concept, the present invention has the following more convenient design considerations:

the charging pile is adaptive to battery packs with different sizes, the length of a pile track is designed to at least adapt to the battery pack with the largest size, and a charging socket which can be in butt joint with a plug on each battery pack with the size is arranged on a plug-in panel at the end of the pile track; and the lifting frame is connected with an expansion bracket through a second translation driving mechanism, the battery pack push-pull mechanism is arranged on the expansion bracket, and the expansion bracket is used for prolonging the conveying length of each battery pack with the size specification so that the battery pack can be conveyed to the tail end of the pile track to be inserted into the charging socket.

Or, in another design, the charging pile is still adaptive to the battery packs with different sizes, and the pile track is a telescopic track to adapt to the battery packs with different sizes and specifications, and is conveniently butted with the rack track on the lifting rack.

Furthermore, in the utility model, a plurality of guide rods are arranged on the telescopic frame along the moving direction of the telescopic frame, and the guide sleeve matched with the guide rods is arranged on the lifting frame. The guide rod and the guide sleeve are matched to further improve the translation stability of the telescopic frame.

It should be explained that the charging socket has the positions and the number of the battery pack connectors suitable for a plurality of specifications, and is suitable for battery packs with a plurality of sizes. For example, a total of four charging sockets on the patch panel at the end of the stake track correspond to four plugs side-by-side on the largest size specification battery pack. For a battery pack with a smaller size, the number of the plugs is only two, but the plugs can still be matched with the two middle charging sockets on the end socket panel of the pile track.

Further, in the utility model discloses in battery compartment sets up the one end bottom of door and is equipped with and supplies translation piece and battery package the keyway structure matches the notch that links to each other. Certainly, the design notch is only an optimal structural form, and the bottom of the battery bin is shortened in practical operation, so that the battery pack can be embedded and connected with the key groove structure of the translation block by extending the front end of the battery pack out of the bottom.

Furthermore, the utility model discloses in keyway structure is various, and one of them common use form is including locating the ascending convex key on the translation piece, and locate terminal bottom of battery package is with convex key complex coupling groove. Or the key groove structure can also be a groove arranged on the translation block and is matched with a connecting bulge arranged at the bottom of the tail end of the battery pack in an embedding manner.

Furthermore, the lifting frame is provided with a plurality of positioning butt joint bulges which are used for being matched with bin positioning grooves or bin positioning holes arranged at the bottom of the battery bin of the electric commercial vehicle in a one-to-one correspondence manner so as to position the lifting frame; similarly, the positioning butt joint bulge is also used for correspondingly matching with a pile positioning hole or a pile positioning groove arranged at the bottom of the support of the charging pile one by one so as to position the lifting frame. In the actual battery replacement process, the battery replacement trolley can move when conveying the battery pack in consideration of the existence of a reaction force, so that the battery pack cannot be stably and reliably conveyed into a battery compartment of the electric commercial vehicle. After the matching structure of the positioning butt joint bulge and the bin positioning groove or the bin positioning hole is added, the reaction force can be eliminated, and the battery changing trolley is ensured to be more stable. Similarly, in the process of charging the charging pile by conveying the battery pack to the charging pile through the battery replacing trolley, the battery replacing trolley needs to be stably positioned with the charging pile.

Furthermore, in the utility model, a plurality of guiding positioning holes are arranged on one end wall of the battery pack, and battery compartment guiding positioning columns which are in one-to-one correspondence with the guiding positioning holes are arranged on the other end wall in the battery compartment, which is opposite to the compartment door, and similarly, charging pile guiding positioning columns which are in one-to-one correspondence with the guiding positioning holes are also arranged on the plugging panel of the charging pile;

or a plurality of guiding positioning columns are arranged on one end wall of the battery pack, battery bin guiding positioning holes which are in one-to-one correspondence with the guiding positioning columns are arranged on the other end wall, opposite to the bin door, in the battery bin, and charging pile guiding positioning holes which are in one-to-one correspondence with the guiding positioning columns are also arranged on the plugging panel of the charging pile. The connection counterpoint that above-mentioned design made plug and the socket connection in the battery compartment or filled the socket that charges on the electric pile on the battery package is more accurate reliable.

Further, in the utility model discloses in battery compartment the door is located the side of electronic commercial car.

Further, in the utility model discloses in trade the universal moving platform that traveles of trolley's running gear for having AI artificial intelligence and seeking way the function.

Furthermore, the lifting mechanism in the present invention is an electric lifting mechanism, such as a worm and gear lifter driven by a common servo motor, or a pneumatic or hydraulic lifting mechanism; the first translation driving mechanism is an electric screw rod, the frame rails are two T-shaped guide rails which are symmetrically arranged on two sides of the electric screw rod in parallel, and the in-bin rail and the pile rail are both formed by two parallel T-shaped guide rails. Of course, the T-shaped guide rail is only an optimal design form, and an L-shaped guide rail convenient for rolling of the roller can be designed actually; correspondingly, if the battery pack adopts the slider to slide, the slide block with the T-shaped groove matched with the T-shaped guide rail is adopted by the in-bin track, the frame track and the pile track, and the matching form of the guide rail and the slide block is also diversified.

It should be noted that the track in the present invention is not limited to the bottom-mounted type, but may also be the top-mounted type, for example, the track in the battery compartment is two parallel T-shaped guide rails installed on the top or the side wall in the battery compartment, the corresponding battery pack is suspended on the guide rails through the rollers to run, and in match with the above, the rack track and the pile track are also designed as the top-mounted type.

Furthermore, in the present invention, the second translational driving mechanism is an electric screw.

Further, in order to improve the fixed stability of battery package in the battery compartment, the utility model discloses in be equipped with a plurality of battery package fastening device on the battery compartment, this kind of battery package fastening device is including the screw frame of the screw of nailing in the battery compartment and supporting screw, and this screw is used for fixing in the battery compartment with establishing the screw hole cooperation on battery package surface in order to fix the battery package. When the concrete implementation, the screw hole can be established in battery package bottom surface, top surface or side, the utility model discloses do not do the injecing.

Furthermore, the utility model discloses in be equipped with on the crane with the electronic screw handling device that the screw corresponds. Of course, the electric screw assembling and disassembling device is the prior art, and has already been applied to the existing automobile battery replacing equipment to a mature degree, and the utility model discloses well no longer expand the detailed description.

Further, the utility model discloses in at least one of them cell of charging grudging post bottom is for trading electric dolly stop grid, and the running gear who trades the electric dolly is electronic running gear, trades the inside electric dolly interface that charges that trades that supplies electronic running gear to charge that is equipped with of electric dolly stop grid.

As a high-efficiency preferred layout form, the two charging stands are arranged side by side to form a charging stand group, a passageway is arranged between the two charging stands, the battery replacement trolley conveying mechanism is arranged in the passageway, and the cells are arranged on the opposite surfaces of the two charging stands in an array manner; the battery replacing trolley inlet and outlet are formed in the corridor corresponding to each charging vertical frame group on the house body; and the cell lattice at the bottom of the two charging vertical frames of each charging vertical frame group, which is closest to the inlet and outlet of the battery replacing trolley, is the parking lattice of the battery replacing trolley.

Further, in the utility model discloses in the cell on the grudging post that charges is matrix array or honeycomb array arranges.

Furthermore, the utility model discloses in install lift guiding mechanism between elevating platform and the carriage. In a specific embodiment, a plurality of guide rollers are arranged around the lifting platform, and the conveying frame is provided with a guide rail for the guide rollers to roll, or guide sleeves can be fixed around the lifting platform, and the conveying frame is provided with guide rods matched with the guide sleeves, so that the purpose of further ensuring the stable lifting of the lifting platform is achieved.

Further, the utility model discloses in still be equipped with the ground track in the room of charging, trade the running gear of trolley transport mechanism be with ground track complex rail running gear.

The utility model provides a commercial car has contained all cargo trucks and the passenger train more than 9, like various load trucks, semi-mounted tractor and bus, bus and engineering vehicle etc..

The utility model discloses holistic theory of operation as follows:

taking a truck as an example, if the carrying capacity is different, the size specification of the battery pack and the size specification of the corresponding battery compartment are also different; but the widths of the tracks in the battery compartment, the frame track on the battery replacing trolley and the pile track on the charging pile can be designed consistently, and the battery replacing trolley is adapted to battery pack rollers or sliding blocks with all sizes and specifications so as to implement unified replacement.

According to the freight train tonnage of current national standard, the utility model discloses in plan to make following four kinds of dimensions with the battery package:

	total mass unit ton of truck and cargo	Dimension (length x width x height) unit mm
			Battery pack A	49	2150x2000x400
Battery pack B	25	2150x1600x300
			Battery pack C	4.5	1900x1400x200
Battery pack D	2	1300x1200x150

When the electric commercial vehicle needs to be charged, the vehicle drives into the charging station and stops in front of the charging trolley inlet and outlet of the charging room, and the bin door of the battery bin is automatically or manually opened. The battery replacing process is completed by matching two battery replacing trolleys at the bottom of a charging vertical frame group in a charging room, one trolley is used for discharging the battery, namely taking out the battery pack in the battery bin of the electric commercial vehicle, and the other trolley is used for charging the battery, namely filling the charged battery pack into the battery bin. At ordinary times, the two power change trolleys are parked in the corresponding power change trolley parking grids and are charged through the power change trolley charging interfaces.

Firstly, a power conversion trolley for discharging power moves to the lower part of a battery bin of a battery commercial vehicle, and a first translation driving mechanism in a battery pack push-pull mechanism drives a translation block to move to the front end, so that a convex key on the translation block is opposite to a connecting groove at the bottom of the tail end of an upper battery pack. And then, the lifting mechanism on the base of the battery replacing trolley drives the lifting frame to lift until the frame rail on the lifting mechanism is aligned with the inner rail of the battery compartment, and the butt joint of the lifting frame and the battery compartment is also completed. Meanwhile, the convex key on the translation block is embedded into the connecting groove at the bottom of the battery pack to complete matching. Meanwhile, the positioning butt joint bulge on the lifting frame is matched with the bin positioning groove arranged at the bottom of the battery bin of the electric commercial vehicle in a one-to-one correspondence mode to position the lifting frame.

And then, the electric screw assembling and disassembling device on the lifting frame unloads the screws at the bottom of the battery bin, and loosens the fixed connection between the battery pack and the battery bin. Then a battery pack push-pull mechanism on the battery replacing trolley works to pull the battery pack out of the battery bin, the battery pack sequentially moves along the track in the bin and the rack track and finally stays on the lifting rack, and the lifting rack is driven by the lifting mechanism to fall back.

Meanwhile, the other electricity changing trolley for charging is driven out of the electricity changing trolley parking grid to the lifting platform, is conveyed to a charging pile unit grid position where a battery pack matched with the electric commercial vehicle is located through the electricity changing trolley conveying mechanism, and the charged battery pack is taken out and moved to the electric commercial vehicle to be ready.

The front electricity changing trolley for discharging electricity needs to carry a battery pack to an empty charging pile unit cell for charging. Therefore, the charging pile is also firstly moved to the lifting platform and is conveyed to the empty charging pile unit cell by the battery replacing trolley conveying mechanism. The lifting frame is lifted under the driving of the lifting mechanism, so that the frame rail on the lifting frame is aligned with the pile rail, and the butt joint of the lifting frame and the charging pile is also completed. Meanwhile, the positioning butt joint protrusions on the lifting frame are matched with the pile positioning holes in the bottom of the support of the charging pile in a one-to-one correspondence mode to position the lifting frame.

At the moment, if the battery replacing trolley is provided with the telescopic frame, the transmission length of the battery pack can be prolonged by driving the telescopic frame to extend into the pile track according to the length specification of the battery pack. For example, for a battery pack with a small length specification, the expansion bracket needs to extend into the pile track for a certain distance, so that the battery pack push-pull mechanism can be ensured to completely send the battery pack to the end of the pile track to be plugged with the charging socket. But also can be the stake track of filling electric pile is designed scalable track in order to adapt to the battery package of different length specifications, the convenient frame track butt joint on with the crane simultaneously.

On the other hand, the battery replacing trolley which is ready beside the electric commercial vehicle and is loaded with the battery pack runs to the lower part of the battery bin, the lifting frame is lifted to be in butt joint with the battery bin, the battery pack on the battery replacing trolley is pushed into the battery bin of the electric commercial vehicle by means of the battery pack push-pull mechanism, connection between a plug on the battery pack and a socket in the battery bin is completed, and finally the bin door is closed, so that the whole battery replacing process is completed.

The utility model has the advantages that:

1. the utility model provides a this kind of trade electric system is a standardized system that has the function of changing the electricity of filling, and it contains unified electronic commercial car and trades electric equipment and battery package specification design to and the high-efficient swift dolly that trades and fill electric pile, can satisfy the unified electricity that fills of the different specification battery packages of all electronic commercial cars and trade, and trade the station and can adopt unmanned operation completely. The standardized power station is extremely low in construction cost in practical implementation. Therefore, the problem of changing oil into electricity of the commercial vehicle can be solved only by constructing a standardized electricity changing station in China, and the electric commercial vehicle is really popularized and popularized.

2. The utility model provides a trade electric dolly adopts horizontal plug to trade the electric mode, has improved holistic electric efficiency that trades, and simple structure. The battery pack push-pull mechanism and the battery pack are designed to adopt a key groove structure which can be embedded and matched with each other, so that the structural improvement of the battery pack push-pull mechanism and the battery pack is very small, and particularly, the battery pack has a simple design structure, low cost and easy implementation.

3. The utility model provides an electric pile is filled in charging room inside through the array arrangement of charging the grudging post, only occupies charging that less land area just can realize a large amount of each size specification battery package, and the design is traded electric dolly transport mechanism simultaneously and is realized trading the horizontal fore-and-aft free movement of electric dolly so that it reachs each and fills electric pile place cell position, has fully improved and has traded electric efficiency. And the bottom of the charging stand is also provided with a parking grid for charging when the battery replacing trolley is parked, so that the working duration of the battery replacing trolley is prolonged.

4. The utility model discloses a further design will fill electric pile design and fill electric pile for not unidimensional specification battery package adaptation type, corresponding dolly cooperation design of trading has the expansion bracket that is used for carrying each specification battery package and fills the electric pile butt joint, the equipment configuration of charging station has further been simplified in this design, ensure to trade the dolly with singly organizing and fill electric pile and just can carry out the high efficiency to the battery package of various specifications and trade the electric operation, the convenience has been improved greatly, the battery package specification unification of electronic commercial car has further been ensured, convenient better implementation trades the electric operation, and implementation cost is extremely low.

5. The whole system of the utility model can completely realize the automatic battery replacement of the 1-49 ton full-specification electric commercial vehicle, and the battery pack can be replaced within a few minutes under the common condition, thereby solving the problem of endurance.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic diagram of an isolated perspective structure of the battery pack of fig. 1;

fig. 3 is a bottom view of the battery pack;

fig. 4 is a plug end elevation view of the battery pack;

fig. 5 is a schematic diagram of an isolated three-dimensional structure of the battery compartment in fig. 1 (a compartment door is opened);

FIG. 6 is a bottom view of the battery compartment;

fig. 7 is a door end elevation view of the battery compartment (door open state);

FIG. 8 is a schematic diagram of an independent perspective structure of the battery changing trolley in FIG. 1;

FIG. 9 is a top view of the swap trolley;

FIG. 10 is a front view of the battery changing cart;

fig. 11 is a front view of the internal structure of the charging house in fig. 1;

FIG. 12 is a top view of the interior of the charging room;

fig. 13 is a schematic view of an isolated perspective structure of the charging pile of fig. 1;

fig. 14 is a top view of the charging pile;

fig. 15 is a front view of the charging post;

fig. 16 is a schematic diagram showing the change of the working state of the battery changing cart for conveying a battery pack of one specification to the charging pile;

fig. 17 is a schematic diagram of the change of the working state of the battery changing trolley for conveying a battery pack of another specification to the charging pile.

Wherein: 1. an electric commercial vehicle; 2. a battery pack; 201. a plug; 202. a roller; 203. a connecting groove; 204. guiding the positioning hole; 205. a screw hole; 3. a battery compartment; 301. a bin gate; 302. a connection socket; 303. an in-bin track; 304. a bin positioning groove; 305. the battery bin is guided to the positioning column; 306. a recess; 4. battery changing trolley; 401. a base; 402. a lifting mechanism; 403. a lifting frame; 403a, positioning and butting protrusions; 404. a rack rail; 405. a first translation drive mechanism; 406. a translation block; 406a, a convex key; 407. a second translation drive mechanism; 408. a telescopic frame; 409. a guide bar; 410. a guide sleeve; 5. charging piles; 501. a support; 501a, pile positioning holes; 502. a pile track; 503. a patch panel; 504. a charging socket; 505. a charging pile guiding positioning column; 6. a screw; 7. a screw frame; 8. an electric screw mounting and dismounting device; 9. a house body; 9a, an inlet and an outlet of the battery replacing trolley; 9b, a maintenance staff entrance and exit; 10. a charging stand; 10a, a cell; 11. a ground track; 12. a carriage; 13. a hoisting mechanism; 14. a lifting platform; 15. and a charging interface of the battery replacing trolley.

Detailed Description

Example (b): the utility model provides a following is to combining fig. 1~15 to this kind of high-efficient electric system that trades of electronic commercial car does the detailed description as follows:

at first as shown in fig. 1, from whole, the utility model discloses by removable battery package 2 electric commercial car 1, set up and hold battery compartment 3 of battery package 2 and trade the power station on electric commercial car 1, wherein trade the power station and constitute jointly by trading electric dolly 4 and the room of charging again.

The utility model discloses in mention electronic commercial car 1, all do not improve to its power drive part, the modified is only battery compartment 3 and arrangement form to and supporting battery package 2.

Earlier explain battery package 2 with fig. 2~4, the utility model provides a battery package 2 designs and is the cuboid form, is different and a plurality of dimensions of size are made according to 1 bearing capacity of electronic commercial car to correspond the battery compartment 3 of different dimensions. The electric commercial vehicle 1 exemplified in this embodiment is, for example, a conventional electric container semi-trailer tractor having a total cargo mass of 49 tons, and the size of the corresponding battery pack 2 is made to be 2150x2000x400 in mm.

As shown in fig. 3 and 4, the bottom of the battery pack 2 is provided with two rows of rollers 202 in parallel symmetrically along the center line with respect to the length direction thereof. Meanwhile, four plugs 201 are arranged side by side on the front end wall of the battery pack 2, and are used for being matched and connected with a connecting socket 302 in the battery compartment 3 and a charging socket 504 on the charging pile 5. Simultaneously still be equipped with two guiding orientation hole 204 on this end wall of battery package 2 for with battery compartment 3 with fill the corresponding structure cooperation that is equipped with on the electric pile 5 in order to realize the guiding orientation function. As shown in fig. 3, the battery pack 2 has a connection groove 203 at a middle position near the bottom of the end wall, and the connection groove is used for cooperating with a battery pack pushing and pulling mechanism on the battery changing cart 4. Meanwhile, the bottom of the battery pack 2 is provided with two screw holes 205 which are bilaterally symmetrical about the connecting groove 203 and are used for being matched with the screws 6 to fix the battery pack 2 into the battery compartment 3.

Referring to fig. 1, 5 to 7, a transverse battery compartment 3 is disposed at the bottom of a girder of a vehicle head of the electric commercial vehicle 1 in the embodiment, a compartment door 301 that can be controlled to open by the electric commercial vehicle 1 is disposed at one end of the battery compartment 3 through an electric hinge, and the compartment door 301 is located at a side surface of the electric commercial vehicle 1 for facilitating loading and unloading of the battery pack 2. The other end wall opposite to the door 301 is provided with four connecting sockets 302 in parallel for butting with the plug 201 arranged on the battery pack 2, and the end wall is provided with battery compartment guiding positioning columns 305 correspondingly matched with the two guiding positioning holes 204 on the battery pack 2 one by one, as shown in fig. 7. And two parallel inner bin rails 303 are arranged inside the battery bin 3 and are matched with the two rows of rollers 202 on the battery pack 2.

As shown in fig. 6 and 7, the battery compartment 3 is provided with two battery pack fastening mechanisms on the bottom surface near the compartment door 301 end, the battery pack fastening mechanisms are composed of screws 6 driven into the battery compartment 3 and screw holders 7 supporting the screws 6, and the inner circumference of the screw holders 7 is milled with a step surface for holding the heads of the screws 6 to prevent the screws 6 from falling down. The screw 6 is engaged with the screw hole 205 provided on the bottom surface of the battery pack 2 to fix the battery pack in the battery compartment 3.

And the battery compartment 3 is further provided with a notch 306 and two compartment positioning grooves 304 on the bottom surface near the end of the compartment door 301, which are related to the battery changing cart 4 and will be described below.

Referring to fig. 8 to 10, the trolley 4 in this embodiment includes a base 401 having a traveling mechanism and a lifting frame 403 driven to lift by a lifting mechanism 402 disposed on the base 401, the lifting frame 403 is provided with a frame rail 404 engaged with the roller 202 of the battery pack 2, the lifting frame 403 is connected to a telescopic frame 408 via a second translation driving mechanism 407, the telescopic frame 408 is provided with a battery pack pushing and pulling mechanism for pushing and pulling the battery pack 2 to move along the frame rail 404 to enter and exit the battery compartment 3, the battery pack pushing and pulling mechanism includes a first translation driving mechanism 405 and a translation block 406 driven by the first translation driving mechanism, and the translation block 406 and the bottom of the end of the battery pack 2 are provided with a key groove structure capable of being embedded and connected. The expansion bracket 408 is used to extend the transport length of each size battery pack 2 so that the battery pack 2 can be delivered to the end of the post track 502 for mating with the charging receptacle 504, as will be described in detail below.

The lifting mechanism 402 in this embodiment employs four electric lifting mechanisms. The first translation driving mechanism 405 and the second translation driving mechanism 407 are both electric lead screws, which are the prior art, and the specific structure thereof is not described in detail. In the first translation driving mechanism 405, the mechanism for translating is a translation block 406, and an upward convex key 406a is integrally formed on the translation block 406, and is just matched and connected with the connection groove 203 arranged at the bottom of the end of the battery pack 2 as shown in fig. 3, so as to drive the battery pack 2 to move. The notch 306 is provided on the battery compartment 3 for the convenience of the engagement between the convex key 406a and the connecting groove 203. For the second translation driving mechanism 407, the translation mechanism is the telescopic frame 408, and in order to improve the motion stability of the telescopic frame 408, two guide rods 409 are further arranged on the telescopic frame 408 along the motion direction of the telescopic frame 408, as shown in fig. 8, and the lifting frame 403 is provided with a guide sleeve 410 matched with the guide rods 409.

In this embodiment, the traveling mechanism on the base 401 adopts the currently mature universal traveling mobile platform with the AI artificial intelligence road finding function, and can realize relatively accurate fixed-point displacement.

In this embodiment, the front portion of the lifting frame 403 is provided with two positioning and docking protrusions 403a, which are used for correspondingly matching the bin positioning grooves 304 (as shown in fig. 6) formed at the bottom of the battery bin 3 of the electric commercial vehicle 1 one by one to position the lifting frame 403, so as to prevent the displacement of the battery replacing trolley 4 caused by the reaction force generated in the battery replacing process. Meanwhile, the lifting frame 403 is provided with two electric screw assembling and disassembling devices 8 for correspondingly assembling and disassembling the screws 6 (shown in fig. 6) at the bottom of the battery compartment 3.

The charging house in the present embodiment will be described with reference to fig. 1, 11, and 12:

in this embodiment, the charging house is composed of a house body 9, a charging stand group arranged in the house body 9, and a battery replacing trolley conveying mechanism. Wherein the grudging post group that charges comprises two charging grudging posts 10 that set up side by side and the middle interval leaves the passageway, all is the matrix array on these two facing surfaces of charging grudging post 10 and is equipped with fifteen cell 10a, and wherein all is equipped with in the fourteen cell 10a and fills electric pile 5. The corridor corresponding to the charging stand group on the house body 9 is provided with a battery replacing trolley inlet and outlet 9a, a cell closest to the battery replacing trolley inlet and outlet 9a at the bottom of two charging stands 10 of the charging stand group is a battery replacing trolley parking grid, and a battery replacing trolley charging interface 15 for charging the battery replacing trolley 4 is arranged inside the battery replacing trolley parking grid. And the other side of the house body 9 opposite to the electricity changing trolley entrance 9a is also provided with a maintenance personnel entrance 9b, as shown in figure 1. And as the power station, the charging house is obviously provided with a power supply (omitted in the figure) for supplying power to the charging pile 5 and the charging interface 15 of the charging trolley.

As shown in fig. 11 and 12, in the charging room of the present embodiment, a ground rail 11 is disposed on the aisle of the charging stand group, and a trolley replacing transportation mechanism is disposed on the ground rail 11, and the trolley replacing transportation mechanism is composed of a rail traveling mechanism moving along the ground rail 11, a transportation frame 12 disposed on the rail traveling mechanism, and a lifting platform 14 disposed on the transportation frame 12 and driven to lift by a lifting mechanism 13, and is used for carrying the trolley 4 and transporting the trolley to the position of the cell 10a where each charging pile 5 is located. The track traveling mechanism is an existing electric track moving platform, and the hoisting mechanism 13 adopts a winch driven by a servo motor.

In this embodiment, a lifting guide mechanism is installed between the lifting platform 14 and the conveying frame 12, that is, a plurality of guide rollers (not shown) are disposed around the lifting platform, and the conveying frame is provided with a guide rail (not shown) for the guide rollers to roll.

Referring to fig. 13 to 15, the charging pile 5 is described, wherein the charging pile 5 is composed of a bracket 501, a pile rail 502 that is provided on the bracket 501 and on which the battery pack 2 slides, and a plug panel 503 that is connected to the end of the pile rail 502. The two parallel pile tracks 502 are also matched with the rollers 202 on the battery pack 2, and four parallel charging sockets 504 which are butted with the plugs 201 on the battery pack 2 are arranged on the plugging panel 503 at the end of the pile tracks 502. Meanwhile, the inserting panel 503 is also provided with a charging pile guiding positioning column 505 corresponding to the two guiding positioning holes 204 on the battery pack 2 one by one for guiding and positioning the battery pack 2 during inserting.

As shown in fig. 13 and 14, the bracket 501 is provided with two pile positioning holes 501a for matching with the positioning butting protrusions 403a on the lifting frame 403 of the electricity changing trolley 4, so that the electricity changing trolley 4 can be positioned by the charging pile 5.

In this embodiment, the frame rails 404 are two T-shaped guide rails symmetrically disposed in parallel on two sides of the first translation driving mechanism 405, and the in-bin rail 303 and the pile rail 502 are also formed by two parallel T-shaped guide rails, and are both matched with the two rows of rollers 202 at the bottom of the battery pack 2.

It should be noted that, in this embodiment, the charging post 5 is a battery pack adaptive charging post with different dimensions, the length of the post rail 502 is designed to at least adapt to the battery pack 2 with the largest dimension, and the charging socket 504 on the plug panel 503 at the end of the post rail 502 can also be connected to the plug 201 on each battery pack 2 with different dimensions, which is described with reference to fig. 16 and 17.

As shown in fig. 16, the battery changing cart 4 transports the battery pack 2 with the size of 2150mmx2000mmx400mm to the charging pile 5 for charging. As can be seen, the length of the stake track 502 is just appropriate for the size of the battery pack. After the convex key 406a on the battery replacing trolley 4 is matched with the connecting groove 203 on the battery pack 2, the battery pack 2 moves onto the pile track 502 along the frame track 404 until being pushed into the bottom under the driving of the first translation driving mechanism 405, so that the plug 201 on the battery pack 2 is connected with the charging socket 504 on the connecting panel 503 in a connecting mode, the second translation driving mechanism 407 does not work in the process, and the telescopic frame 408 does not move.

As shown in fig. 17, when a battery pack 2 (1300 mmx1200mmx150 mm) with a small size and a small size is to be carried, the expansion bracket 408 is driven by the second translation driving mechanism 407 to move toward the pile rail 502 and extend into the pile rail 502 for a certain distance to extend the conveying length of the battery pack 2, and finally, the battery pack 2 is smoothly conveyed to the position to complete the insertion connection with the charging socket 504 on the insertion panel 503 under the driving of the first translation driving mechanism 405.

The working principle of the utility model is as follows:

when the electric commercial vehicle 1 needs to exchange electricity, the electric commercial vehicle drives into an electricity exchange station and stops in front of an electricity exchange trolley inlet/outlet 9a of a charging room, and the bin door 301 of the battery bin 3 is controlled to be opened by the electric commercial vehicle 1. The battery replacing process is completed by matching two battery replacing trolleys 4 at the bottom of a charging vertical frame group in a charging room, one battery replacing trolley is used for discharging the battery, namely the battery pack 2 in the battery bin 3 of the electric commercial vehicle 1 is taken out, and the other battery replacing trolley is used for charging the battery, namely the battery pack 2 which is charged is filled into the battery bin 3. At ordinary times, the two power change trolleys 4 are parked in the corresponding power change trolley parking grids and are charged through the power change trolley charging interfaces 15.

Firstly, the power changing trolley 4 for discharging power moves to the lower part of the battery bin 3 of the battery commercial vehicle 1, the first translation driving mechanism 405 in the battery pack pushing and pulling mechanism drives the translation block 406 to move to the front end, so that the convex key 406a on the translation block 406 is opposite to the connecting groove 203 at the bottom of the tail end of the upper battery pack 2. Subsequently, the lifting mechanism 402 on the base of the battery replacing trolley 4 drives the lifting frame 403 to lift until the frame rail 404 on the lifting frame is aligned with the in-bin rail 303 of the battery bin 3, that is, the butt joint of the lifting frame 403 and the battery bin 3 is completed. And meanwhile, the convex key 406a on the translation block 406 is embedded into the connecting groove 203 at the bottom of the battery pack 2 to complete the matching. Meanwhile, the positioning butting protrusions 403a on the lifting frames 403 are correspondingly matched with bin positioning grooves 304 arranged at the bottom of the battery bin 3 of the electric commercial vehicle 1 one by one so as to position the lifting frames 403.

Next, the electric screw mounting and dismounting device 8 on the lifting frame 403 removes the screw 6 at the bottom of the battery compartment 3, and loosens the fixed connection between the battery pack 2 and the battery compartment 3. Then, a battery pack pushing and pulling mechanism on the battery replacing trolley 4 works to pull the battery pack 2 out of the battery compartment 3, the battery pack 2 moves along the compartment inner rail 303 and the compartment rail 404 in sequence, and finally stays on the lifting frame 403, and the lifting frame 403 falls back and forth under the driving of the lifting mechanism 402.

Meanwhile, the other electricity changing trolley 4 for charging electricity is driven out of the electricity changing trolley parking grid, conveyed to the unit grid position of the charging pile 5 where the battery pack 2 matched with the electric commercial vehicle 1 is located through the electricity changing trolley conveying mechanism, and taken out of the charged battery pack 2 and moved to the side of the electric commercial vehicle 1 to be ready.

The front electricity-changing trolley 4 for discharging electricity needs to carry the battery pack 2 to an empty charging pile 5 for charging in unit grid positions. Therefore, it is also first moved onto the lifting table 14 and transported by the trolley conveyor to the empty charging pile 5 cell. The crane 403 is then lifted under the driving of the lifting mechanism 402 so that the crane rail 404 thereon is aligned with the pile rail 502, i.e. the docking of the crane 403 with the charging pile 5 is completed. Meanwhile, the positioning and butting protrusions 403a on the lifting frames 403 are correspondingly matched with the pile positioning holes 501a at the bottom of the support 501 of the charging pile 5 one by one so as to position the lifting frames 403.

At this time, if the battery changing trolley 4 is provided with the telescopic frame 408, according to the length specification of the battery pack 2, the transmission length of the battery pack 2 can be extended by driving the telescopic frame 408 to extend into the pile rail 502, so that it is ensured that the battery pack pushing and pulling mechanism can completely deliver the battery pack 2 to the end of the pile rail 502 to complete the insertion with the charging socket 504.

On the other hand, the battery replacing trolley 4 which is ready beside the electric commercial vehicle 1 and carries the battery pack 2 runs to the lower part of the battery bin 3, the lifting frame 403 is lifted to be in butt joint with the battery bin 3, finally the battery pack 2 on the battery replacing trolley is pushed into the battery bin 3 of the electric commercial vehicle 1 by means of the battery pack push-pull mechanism, the connection between the plug 201 on the battery pack 2 and the connecting socket 302 in the battery bin 3 is completed, finally the bin door 301 is closed, and the whole battery replacing process is completed.

The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient electric system that trades of electronic commercial car, includes electronic commercial car (1) and the power station that trades of taking removable battery package (2), its characterized in that:

a transverse battery compartment (3) is arranged at the bottom of a crossbeam of the electric commercial vehicle (1), a compartment door (301) is arranged at one end of the crossbeam, and a connecting socket (302) which is butted with a plug (201) arranged at the front end of the battery pack (2) is arranged at the other end wall opposite to the compartment door (301); an inner bin track (303) is arranged in the battery bin (3), and a roller (202) or a sliding block matched with the inner bin track (303) is arranged on the battery pack (2);

the battery pack (2) is cuboid, is manufactured into a plurality of sizes according to different carrying capacities of the electric commercial vehicle (1), and corresponds to the battery bins (3) with different sizes;

trade power station including trading electric dolly (4) and the room of charging, wherein:

the battery replacing trolley (4) comprises a base (401) provided with a walking mechanism and a lifting frame (403) driven to lift by a lifting mechanism (402) arranged on the base (401), a frame rail (404) matched with a roller (202) or a sliding block of a battery pack (2) is arranged on the lifting frame (403), a battery pack pushing and pulling mechanism used for pushing and pulling the battery pack (2) to move along the frame rail (404) to enter and exit the battery bin (3) is arranged on the lifting frame (403), the battery pack pushing and pulling mechanism comprises a first translation driving mechanism (405) and a translation block (406) driven by the first translation driving mechanism, and a key groove structure which can be embedded and matched and connected with the bottom of the tail end of the battery pack (2) is designed on the translation block (406);

the charging house comprises a house body (9) and at least one charging stand (10) arranged in the house body (9), wherein a plurality of cells (10a) are arranged on the charging stand (10) in an array mode, a charging pile (5) is arranged in at least one cell (10a), the charging pile (5) comprises a support (501) and a pile track (502) which is arranged on the support (501) and transversely slides on a power supply battery pack (2), the pile track (502) is also matched with a roller (202) or a sliding block on the battery pack (2), and a charging socket (504) which is in butt joint with a plug (201) on the battery pack (2) is arranged on a plug-in panel (503) at the end of the pile track (502); an inlet and outlet (9a) of the battery replacing trolley and an access (9b) for maintenance personnel are arranged on the house body (9);

the charging trolley conveying mechanism comprises a travelling mechanism and a conveying frame (12) arranged on the travelling mechanism, wherein a lifting platform (14) driven to lift by a lifting mechanism (13) is arranged on the conveying frame (12) and used for carrying the charging trolley (4) and conveying the charging trolley to the position of a cell (10a) where each charging pile (5) is located.

2. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein the charging pile (5) is a battery pack adaptive charging pile with different dimensions, the length of a pile rail (502) of the charging pile is designed to at least adapt to the battery pack (2) with the largest dimension, and a charging socket (504) which can be in butt joint with a plug (201) on each battery pack (2) with the dimension is arranged on a plug panel (503) at the end of the pile rail (502); the lifting frame (403) is connected with an expansion frame (408) through a second translation driving mechanism (407), the battery pack pushing and pulling mechanism is arranged on the expansion frame (408), and the expansion frame (408) is used for prolonging the conveying length of the battery packs (2) with various dimensions, so that the battery packs (2) can be conveyed to the end of the pile track (502) to be spliced with the charging socket (504).

3. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 2, wherein the telescopic frame (408) is provided with a plurality of guide rods (409) along the moving direction of the telescopic frame (408), and the lifting frame (403) is provided with guide sleeves (410) matched with the guide rods (409).

4. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein the charging pile (5) is a charging pile adaptive to battery packs of different sizes, and the pile rail (502) is a telescopic rail to adapt to battery packs (2) of different sizes, and is conveniently butted with the frame rail (404) on the lifting frame (403).

5. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein a notch (306) for the translation block (406) to be connected with the keyway structure of the battery pack (2) in an embedding manner is formed at the bottom of one end of the battery compartment (3) where the compartment door (301) is arranged.

6. The electric commercial vehicle high-efficiency power conversion system according to claim 1 or 5, characterized in that the key groove structure comprises an upward convex key (406a) arranged on the translation block (406) and a connecting groove (203) arranged at the bottom of the tail end of the battery pack (2) and matched with the convex key (406 a); or the key groove structure comprises a groove arranged on the translation block (406) and a connecting bulge arranged at the bottom of the tail end of the battery pack (2) and matched with the groove.

7. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein the lifting frame (403) is provided with a plurality of positioning and butt-joint protrusions (403a) for being correspondingly matched with bin positioning grooves (304) or bin positioning holes arranged at the bottom of a battery bin (3) of the electric commercial vehicle (1) one by one to position the lifting frame (403); similarly, the positioning and butting bulge (403a) is also used for correspondingly matching with a pile positioning hole (501a) or a pile positioning groove arranged at the bottom of the support (501) of the charging pile (5) one by one so as to position the lifting frame (403).

8. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein a plurality of guide positioning holes (204) are formed in one end wall of the battery pack (2), battery bin guide positioning columns (305) corresponding to the guide positioning holes (204) are formed in the other end wall, opposite to the bin door (301), of the battery bin (3), and charging pile guide positioning columns (505) corresponding to the guide positioning holes (204) are also formed in a plug-in panel (503) of the charging pile (5);

or a plurality of guiding positioning columns are arranged on one end wall of the battery pack (2), battery bin guiding positioning holes which correspond to the guiding positioning columns one by one are arranged on the other end wall, opposite to the bin door (301), in the battery bin (3), and similarly, charging pile guiding positioning holes which correspond to the guiding positioning columns one by one are also arranged on the plugging panel (503) of the charging pile (5).

9. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein the bin door (301) of the battery bin (3) is located at a side of the electric commercial vehicle (1).

10. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein a traveling mechanism of the battery replacement trolley (4) is a universal traveling moving platform with an AI artificial intelligence path finding function.

11. The electric commercial vehicle high-efficiency power conversion system according to claim 1, characterized in that the lifting mechanism (402) is an electric lifting mechanism, or a pneumatic or hydraulic lifting mechanism; the first translation driving mechanism (405) is an electric screw rod, the frame rails (404) are two T-shaped guide rails which are symmetrically arranged on two sides of the electric screw rod in parallel, and the in-bin rail (303) and the pile rail (502) are both formed by two parallel T-shaped guide rails.

12. The electric commercial vehicle high-efficiency battery replacement system according to claim 2, wherein the second translation driving mechanism (407) is an electric lead screw.

13. The high-efficiency battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein the battery compartment (3) is provided with a plurality of battery pack fastening mechanisms, each battery pack fastening mechanism comprises a screw (6) screwed into the battery compartment (3) and a screw frame (7) supporting the screw (6), and the screw (6) is used for being matched with a screw hole (205) formed in the surface of the battery pack (2) to fix the battery pack in the battery compartment (3).

14. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 13, wherein the lifting frame (403) is provided with an electric screw handling device (8) corresponding to the screw (6).

15. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein one of the cells at the bottom of the at least one charging stand (10) is a battery replacement trolley parking cell, the traveling mechanism of the battery replacement trolley (4) is an electric traveling mechanism, and a battery replacement trolley charging interface (15) for charging the electric traveling mechanism is arranged inside the battery replacement trolley parking cell.

16. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 15, wherein two charging stands (10) are arranged side by side to form a charging stand group, an aisle is arranged between the two charging stands (10), the battery replacement trolley transportation mechanism is arranged in the aisle, and the unit cells (10a) are arranged on the opposite surfaces of the two charging stands (10) in an array manner; the battery replacing trolley inlet and outlet (9a) are formed in the corridor corresponding to each charging vertical frame group on the house body (9); and a cell which is closest to an inlet and outlet (9a) of the battery replacing trolley at the bottom of the two charging vertical frames (10) of each charging vertical frame group is a parking cell of the battery replacing trolley.

17. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein the cells (10a) on the charging stand (10) are arranged in a matrix array or a honeycomb array.

18. The efficient power conversion system for the electric commercial vehicle as claimed in claim 1, wherein a lifting guide mechanism is installed between the lifting table (14) and the conveying frame (12).

19. The efficient battery replacement system for the electric commercial vehicle as claimed in claim 1 or 16, wherein a ground rail (11) is further arranged in the charging room, and the running mechanism of the transportation mechanism of the battery replacement trolley is a rail running mechanism matched with the ground rail (11).