CN213948199U

CN213948199U - Quick battery replacement system of electric commercial vehicle

Info

Publication number: CN213948199U
Application number: CN202022765618.0U
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 swift electric system that trades of electronic commercial car, including taking the electronic commercial car and the box station of trading of removable battery package, 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 box type battery replacing station comprises a battery replacing trolley and a box body, wherein a frame rail matched with the battery pack roller is arranged on the battery replacing trolley, and a battery pack push-pull mechanism is arranged on the frame rail; the charging stand is arranged in the box body, the unit grids are longitudinally arranged on the charging stand, the charging pile for charging the battery pack is arranged in each grid, and the battery replacing trolley conveying mechanism for conveying the battery replacing 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

Quick battery replacement system of electric commercial vehicle

Technical Field

The utility model relates to a swift system of trading 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 swift system of trading of electronic commercial car, its battery package specification that can realize the electronic commercial car of different tonnages 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 current electronic commercial car popularization.

The technical scheme of the utility model is that: swift system of trading of electronic commercial car, including the electronic commercial car and the box station of trading of taking removable battery package, 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;

the box trades power station and trades electric dolly and box including trading, 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;

two charging vertical frames are fixed in the box body, single longitudinal rows of unit cells are arranged on opposite surfaces of the two charging vertical frames, 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 is used for a transverse battery pack to slide, 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; the box body is provided with an inlet and an outlet of the battery replacing trolley and an inlet and an outlet of maintenance personnel;

the electric power replacing trolley conveying mechanism comprises a conveying vertical frame, a lifting mechanism and a lifting platform, wherein the conveying vertical frame is fixed in the box body and located between the two charging vertical frames, the lifting mechanism is arranged on the conveying vertical frame, the lifting platform is driven by the lifting mechanism to lift, and the electric power replacing trolley is carried and conveyed 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 the cell of the grudging post bottom of charging is for trading battery dolly stop check, and the running gear who trades the battery dolly is electronic running gear, trades the inside battery dolly interface that charges that trades that supplies electronic running gear to charge that is equipped with of battery dolly stop check.

As a high-efficient preferred layout form, the utility model discloses have on the well box one and trade the dolly exit with trading that dolly conveying mechanism set up relatively, two stand symmetries that charge are located trade dolly conveying mechanism's the left and right sides, and two unit grids that charge the stand bottom are trade the dolly and stop the check.

Furthermore, the utility model discloses in install lift guiding mechanism between elevating platform and the transport grudging post. 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.

Further, in the utility model discloses in correspond two on the box respectively it all is equipped with one in addition and trades the dolly and imports and exports to trade the electricity dolly stop the check, trades the design of imports and exports in order to improve through a plurality of trades the electricity dolly and trade electric efficiency.

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 bin door of the battery bin is automatically or manually opened before the charging trolley parked in the middle of the box body of the box type charging station enters and exits. The battery replacing process is completed by matching two battery replacing trolleys in the box body, one battery replacing trolley is used for discharging electricity, namely a battery pack in a battery bin of the electric commercial vehicle is taken out, the other battery replacing trolley is used for charging electricity, and namely a battery pack which is charged is filled 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 the box trades the station and can adopt unmanned operation completely. In practical implementation, the standardized box-type power conversion station is extremely low in construction cost. Therefore, the problem of changing oil into electricity of the commercial vehicle can be solved by only constructing a standardized box type electricity changing station in China, and the electric commercial vehicle can be popularized and popularized really.

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 a box trades power station, the inside charging stand of box is passed through and is settled and fill electric pile, 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 conveying mechanism simultaneously and is come the lifting and trade the electric dolly to it reaches each and fills electric pile place unit lattice 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 provides a main structure that box trades power station adopts box structure, compact structure, and occupation of land is little, can directly wholly transport to the occasion of needs after the equipment and arrange to drop into operation immediately, cover a large amount of original not convenient for build the place that trades the power station, very big satisfying at present electric commercial car fill trade the electric demand.

5. 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.

6. 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 structural view (see through the box) 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 case in FIG. 1 (see-through case);

FIG. 12 is a top view of the internal structure of the case (see-through case);

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 box 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 conveying vertical frame; 12. a hoisting mechanism; 13. a lifting platform; 14. 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 swift system of trading 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 and the box power station that trades of battery package 2 on electric commercial car 1, wherein the box power station that trades comprises jointly by trading electric dolly 4, box 9, charging stand 10, charging pile 5 and trading electric dolly conveying mechanism 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 case 9 and the internal components in the present embodiment will be described with reference to fig. 1, 11, and 12:

in this embodiment, the box 9 is a rectangular parallelepiped and is formed by an outer box wall and a frame supporting the box wall. Two charging stands 10 are fixed inside the box 9. Five cells 10a are arranged on the opposite surfaces of the two charging stands 10 from bottom to top to form a vertical column, and charging piles 5 are arranged in the four cells 10a above the charging stands except the cells 10a at the bottom. The middle position of the two charging vertical frames 10 is provided with a trolley replacing conveying mechanism which is composed of a conveying vertical frame 11 fixed in the box body 9 and positioned between the two charging vertical frames 10, a hoisting mechanism 12 arranged on the conveying vertical frame 11 and a lifting platform 13 driven by the hoisting mechanism 12 to lift and lower and is used for carrying the trolley replacing 4 and conveying the trolley to the position of a cell 10a where each charging pile 5 is positioned. The hoisting mechanism 12 is a hoist driven by a servo motor.

In this embodiment, a lifting guide mechanism is installed between the lifting platform 13 and the vertical conveying frame 11, that is, a plurality of guide rollers (not shown) are disposed around the lifting platform 13, and a guide rail (not shown) for the guide rollers to roll is disposed on the vertical conveying frame 11.

In this embodiment, three trolley ports 9a are formed in the box body 9, and the two charging stands 10 are symmetrically located at the left and right sides of the trolley conveying mechanism, as shown in fig. 1, 11 and 12. The cell grids 10a at the bottom of the two charging stands 10 are both replacing trolley parking grids, and are both parked at one replacing trolley 4. And a charging interface 14 of the battery changing trolley for charging the battery changing trolley 4 is arranged in the battery changing trolley stopping grid. The three trolley inlet and outlet 9a are respectively arranged opposite to the trolley conveying mechanism and the two trolley parking grids, and both sides of the box body 9 are provided with maintenance personnel access 9b, as shown in fig. 1. And as a box-type charging station, a power supply (omitted in the figure) for supplying power to the charging pile 5 and the charging interface 14 of the charging trolley is obviously arranged inside or outside the box body 9.

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 be charged, the cabin door 301 of the battery cabin 3 is controlled to be opened by the electric commercial vehicle 1 before the charging trolley inlet and outlet 9a in the middle of the box body 9 of the box type charging station. The battery replacing process is completed by matching two battery replacing trolleys 4 in the box body 9, one 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 is used for charging, 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, the charging pile is also moved to the lifting platform 13 firstly and is conveyed to the empty charging pile 5 unit cell by the transfer trolley conveying mechanism. 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 swift system of trading of electronic commercial car, trades power station, its characterized in that including electronic commercial car (1) and the box of taking removable battery package (2):

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;

the box-type battery replacing station comprises a battery replacing trolley (4) and a box body (9), 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);

two charging stands (10) are fixed in the box body (9), the opposite surfaces of the two charging stands (10) are respectively provided with a single longitudinal row of unit cells (10a), at least one unit cell (10a) is internally provided with a charging pile (5), the charging pile (5) comprises a support (501) and a pile track (502) which is arranged on the support (501) and is used for sliding the 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 butted with a plug (201) on the battery pack (2) is arranged on a plugging 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 box body (9);

the charging system is characterized by further comprising a charging trolley conveying mechanism, wherein the charging trolley conveying mechanism comprises a conveying vertical frame (11) which is fixed in the box body (9) and located between the two charging vertical frames (10), a hoisting mechanism (12) which is arranged on the conveying vertical frame (11), and a lifting platform (13) which is driven by the hoisting mechanism (12) to lift, and is 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 quick 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 quick battery replacement system is designed to at least adapt to a battery pack (2) with the largest dimension, and a charging socket (504) which can be butted with a plug (201) on each battery pack (2) with the dimension is arranged on a plugging 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 quick 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 quick battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein the charging pile (5) is a charging pile adapted to battery packs of different sizes, and the pile rail (502) is a telescopic rail adapted to battery packs (2) of different sizes, and is conveniently butted with the frame rail (404) on the lifting frame (403).

5. The quick 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 quick battery replacement system for electric commercial vehicles according to claim 1 or 5, wherein 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 quick 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 quick 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 similarly, charging pile guide positioning columns (505) corresponding to the guide positioning holes (204) are 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 quick battery replacement system for electric commercial vehicles according to claim 1, wherein the compartment door (301) of the battery compartment (3) is located at the side of the electric commercial vehicle (1).

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

11. The quick battery replacement system for electric commercial vehicles according to claim 1, wherein 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 quick battery replacement system for electric commercial vehicles according to claim 2, wherein the second translational driving mechanism (407) is an electric lead screw.

13. The quick battery replacement system for electric commercial vehicles according to claim 1, wherein the battery compartment (3) is provided with a plurality of battery pack fastening mechanisms, each of the battery pack fastening mechanisms comprises a screw (6) screwed into the battery compartment (3) and a screw holder (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 quick 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 quick battery replacement system for electric commercial vehicles according to claim 1, wherein at least one cell at the bottom of the 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 (14) for charging the electric traveling mechanism is arranged in the battery replacement trolley parking cell.

16. The quick battery replacement system for the electric commercial vehicle as claimed in claim 15, wherein the box body (9) is provided with a battery replacement trolley inlet/outlet (9a) opposite to the battery replacement trolley conveying mechanism, the two charging stands (10) are symmetrically located at the left and right sides of the battery replacement trolley conveying mechanism, and the cell lattices at the bottoms of the two charging stands (10) are the battery replacement trolley parking lattices.

17. The quick battery replacement system for the electric commercial vehicle as claimed in claim 1, wherein a lifting guide mechanism is installed between the lifting platform (13) and the conveying stand (11).

18. The quick battery replacement system for the electric commercial vehicle as claimed in claim 16, wherein the box body (9) is further provided with a battery replacement trolley inlet/outlet (9a) corresponding to each of the two battery replacement trolley parking grids.