CN116080469A

CN116080469A - Trade electric system

Info

Publication number: CN116080469A
Application number: CN202310021951.6A
Authority: CN
Inventors: 蒙祀凯; 栓柱; 吕丰; 郭鹏; 盛辉
Original assignee: Shanghai Qiyuan Core Power Technology Co ltd
Current assignee: Shanghai Qiyuan Core Power Technology Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-05-09

Abstract

The invention discloses a power conversion system, which comprises: electric ships, power conversion station, flexible bridge and a plurality of battery car. The power exchange station is arranged at the wharf, the telescopic bridge is arranged at the wharf and has an extension state and a retraction state, and the telescopic bridge can be connected with the electric ship and the wharf under the extension state. Each battery car has running gear, and each battery car can walk between the power conversion station and electric ship. The battery car of the electricity deficiency on the electric ship can travel to the power exchange station for charging by the electric ship, and the battery car full of electricity in the power exchange station can travel to the electric ship from the power exchange station for supplying power to the electric ship. The battery car that this application trades electric system and provides has running gear, can follow the battery station that trades of pier, goes to deck through the telescopic bridge and carries out the power supply to electric ship berth, does not need the delivery vehicle delivery, does not need tower crane hoist and mount, trades electric safety convenient. The battery car of insufficient power and the battery car of full power can the bidirectional movement, and the time of changing the electricity is short, and the efficiency of changing the electricity is high.

Description

Trade electric system

Technical Field

The invention belongs to the technical field of new energy, and particularly relates to a power conversion system.

Background

The current electric ship part mainly charges, and charge time is long, and after the electric quantity is spent, need carry out long-time charging at the pier, can't improve cargo transportation efficiency, and increase the cost of labor. And when the electric ship is powered on, the mechanical arm or the tower crane is required to grab and place the full-power battery on the carrier, the carrier carries the full-power battery from the power station to the deck of the electric ship, and the mechanical arm or the tower crane on the deck grabs and places the battery on the electric ship to supply power for the electric ship. Meanwhile, the mechanical arm or the tower crane on the deck grabs and places the battery with the electricity shortage on the carrier, the carrier then operates the battery with the electricity shortage to the power conversion station for charging, the power conversion is required to be carried out, the current process is complex, and the battery is required to be frequently disassembled from the battery car. The general method of the tower crane adopts a steel wire rope structure, is seriously influenced by weather, encounters strong wind weather, and the battery shakes seriously in the hoisting process, so that manual intervention is needed, the power conversion efficiency is influenced, and certain potential safety hazards exist.

In view of this, the present invention has been made.

Disclosure of Invention

The invention provides a power conversion system.

The application provides the following technical scheme:

the application provides a power conversion system, including:

an electric ship;

the power exchange station is arranged at the wharf;

the telescopic bridge is arranged at the wharf and is provided with an extension state and a retraction state, and in the extension state, the telescopic bridge can be connected with the electric ship and the wharf;

each battery car is provided with a travelling mechanism, and each battery car can travel between the power exchange station and the electric ship;

the battery car of the electric ship with the power shortage can travel to the power exchange station for charging by the electric ship, and the battery car with the full power in the power exchange station can travel to the electric ship from the power exchange station for supplying power to the electric ship.

Optionally, a battery matching structure is arranged on at least one of the electric ship and the power exchange station;

the battery car is provided with a locking matching groove;

the battery matching structure can lock the battery car when the battery car moves to a power exchange station or an electric ship;

when the battery car receives a walking instruction, the battery matching structure can unlock the battery car.

Optionally, the electric vessel and the power exchange station each comprise a body having a support plate;

the battery matching structure comprises a limiting part and a locking mechanism;

the limiting part is arranged on the supporting plate, the limiting part is provided with a limiting groove for a battery car to drive in, the locking mechanism is arranged inside the body and is provided with a lifting column and a locking piece, the locking piece is arranged on the lifting column, and the locking piece is provided with a movable lock tongue;

under the state that the battery car advances to in the spacing groove, the elevating column can stretch out the backup pad and run through locking cooperation groove, movable spring bolt can be followed perpendicularly the direction of elevating column stretches out to the card is in the battery car deviates from one side of backup pad.

Optionally, a first lifting device is arranged in the body;

the body is provided with a guide groove which extends along the direction vertical to the supporting plate;

the lifting column is slidably connected to the guide groove;

the first lifting device is in transmission connection with the lifting column so as to drive the lifting column to move up and down along the guide groove.

Optionally, the body has a guide sleeve;

the guide sleeve is positioned in the body, and one end of the guide sleeve is fixed on the supporting plate;

the guide sleeve is provided with the guide groove.

Optionally, the power conversion system further comprises a wear-resistant layer;

the wear-resisting layer is attached to the inner wall of the guide groove.

Optionally, the lifting column is provided with a cavity, and a hinge seat is convexly arranged on the inner wall of the cavity;

one end of the first lifting device is hinged to the body, the other end of the first lifting device extends into the cavity, and the first lifting device is hinged to the hinging seat.

Optionally, the lifting column is provided with a cavity and a telescopic hole communicated with the cavity;

the locking piece is arranged in the cavity, and the locking piece can drive the movable lock tongue to extend out of the telescopic hole or retract into the cavity from the telescopic hole.

Optionally, a first mounting seat is arranged in the cavity;

the locking piece is arranged on the first mounting seat and comprises an electric push rod;

the movable lock tongue is in transmission connection with the electric push rod;

the electric push rod drives the movable lock tongue to extend out of the telescopic hole or retract into the cavity from the telescopic hole.

Optionally, a block is arranged on the inner wall of the cavity;

a chute communicated with the telescopic hole is arranged on the block;

the movable lock tongue is slidably connected to the chute;

the electric push rod is hinged with the movable lock tongue.

Optionally, the limiting part comprises two side blocking bodies and an end blocking body;

the two side baffle bodies are arranged at intervals;

the end baffle is arranged at one end of the side baffle, and the end baffle is connected with the two side baffles;

one end of the two side blocking bodies, which is away from the end blocking bodies, forms an entry.

Optionally, a first electric connector and a second lifting device are arranged on the electric ship;

the first electric connector is electrically connected to a driving system of the electric ship;

the second lifting device is arranged in the body of the electric ship, and the first electric connector is connected with the second lifting device;

the battery car has a second electrical connector;

and in a state that the battery car advances into the limiting groove, the second lifting device can drive the first electric connector to extend out of the supporting plate and be electrically connected with the second electric connector.

Optionally, a third electric connector and a third lifting device are arranged on the power exchange station;

the third electric connector is electrically connected to the charging equipment of the power exchange station;

the third lifting device is arranged in the body of the power exchange station, and the third electric connector is connected with the third lifting device;

the battery car has a second electrical connector;

and in a state that the battery car advances into the limiting groove, the third lifting device can drive the third electric connector to extend out of the supporting plate and be electrically connected with the second electric connector.

Optionally, a second mounting seat is arranged on the supporting plate;

a plurality of linear bearings are arranged on the second mounting seat;

a plurality of guide rods are connected to the first electric connector or the third electric connector;

each guide rod is slidably connected to the linear bearing.

Optionally, the battery car includes:

the trolley is provided with a travelling mechanism, and a second electric connector is arranged on the trolley;

the battery box is fixedly arranged on the trolley and is electrically connected with the second electric connector.

Optionally, the trolley is provided with a trolley body, the trolley body is provided with two side end faces, and the two side end faces are partially arranged on two sides of the trolley body along the width direction;

a plurality of rolling balls are arranged on the end faces of the two side parts;

the rolling balls on the end face of each side part are sequentially arranged at intervals along the length direction of the vehicle body;

the ball is rotatably connected with the vehicle body.

Optionally, the vehicle body has two end faces;

the two end face parts are arranged on two sides of the vehicle body along the length direction;

the end face and the side end face are connected through chamfer faces;

and the chamfer surface is provided with a rolling ball.

Optionally, a vision camera and a laser radar are arranged on the trolley.

Optionally, the power conversion system further includes a guiding portion, the guiding portion includes a first guiding portion, a second guiding portion and a third guiding portion, the first guiding portion is disposed at the dock, the second guiding portion is disposed at the telescopic bridge, and the third guiding portion is disposed at the electric ship;

in the extended state, the second guide portion can connect the first guide portion and the third guide portion;

the battery car can travel along the extending direction of the guide part.

Through adopting above-mentioned technical scheme for this application has following beneficial effect:

the battery car that this application trades electric system and provides has running gear, can follow the power station that trades of pier, goes to the deck through the telescopic bridge and berths to electric ship and supply power, does not need the delivery vehicle delivery, does not need tower crane hoist and mount, so trades the electricity and receives little influence of strong wind weather, trades electric safety convenient. The battery car of insufficient power and the battery car of full power can the bidirectional movement, and the time of changing the electricity is short, and the efficiency of changing the electricity is high.

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention, without limitation to the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

fig. 1 is a top view of a power conversion system provided in an embodiment of the present application;

fig. 2 is a side view of a power conversion system provided in an embodiment of the present application;

fig. 3 is a top view of a battery exchange station and a battery car of the battery exchange system according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of a battery car matching structure and a battery car in a separated state of the battery car of the power conversion system provided in the embodiment of the present application;

fig. 5 is an enlarged view of D in fig. 4;

fig. 6 is a schematic structural diagram of a battery car matching structure of a battery-powered system and a battery car in a matching state according to an embodiment of the present application;

fig. 7 is a front view of a battery car matching structure and a battery car of the battery change system provided in the embodiment of the present application in a matching state;

FIG. 8 is a cross-sectional view taken along the direction A-A in FIG. 7;

fig. 9 is a side view of a battery car matching structure and a battery car of the battery change system provided in the embodiment of the present application in a matching state;

FIG. 10 is a cross-sectional view taken along the direction B-B in FIG. 9;

FIG. 11 is an enlarged view of E in FIG. 10;

fig. 12 is a schematic diagram of the internal structure of the body of the battery car matching structure of the battery-powered system according to the embodiment of the present application;

fig. 13 is an external schematic view of a battery car of a power conversion system according to an embodiment of the present disclosure;

fig. 14 is a bottom view of a battery car of the battery exchange system according to the embodiment of the present application.

In the figure: 1. a battery car; 11. a trolley; 111. a vehicle body; 1111. a side end face; 1111a, a ball; 1112. an end face; 1113. chamfering the surface; 112. a walking mechanism; 113. a second electrical connector; 114. a locking mating groove; 115. an extension; 116. a vision camera; 117. a laser radar; 12. a battery box; a. an electric ship; a1, a first electric connector; a2, a second lifting device; b. a power exchange station; b1, a third electrical connector; 3. a body; 31. a support plate; 311. a limit part; 3111. a limit groove; 3112. a side block; 3113. an end baffle; 3114. an entry point; 32. a first lifting device; 33. a guide sleeve; 34. a block; 37. a second mounting base; 38. a linear bearing; 39. a guide rod; 4. a locking mechanism; 41. lifting columns; 411. a cavity; 412. a telescopic hole; 413. a first mount; 414. a hinge base; 42. a locking member; 421. a movable lock tongue; 422. an electric push rod; 5. a telescopic bridge; 51. a fixed section; 52. a movable section; 6. a guide part; 61. a first guide part; 62. a second guide part; 621. a fixed guide part; 622. a movable guide part; 63. a third guide part; 7. dock.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 14, an embodiment of the present application provides a power conversion system, including: an electric ship a, a power exchange station b, a telescopic bridge 5 and a plurality of battery cars 1. The power exchange station b is arranged at the wharf 7, the telescopic bridge 5 has an extension state and a retraction state, and in the extension state, the telescopic bridge 5 can connect the electric ship a and the wharf 7. Each of the battery cars 1 has a traveling mechanism 112, and each of the battery cars 1 is capable of traveling between the battery exchange station b and the electric ship a. The battery car 1 with the power being insufficient on the electric ship a can run from the electric ship a to the power exchanging station b for charging, and the battery car 1 with the power being full in the power exchanging station b can run from the power exchanging station b to the electric ship a for supplying power to the electric ship a. The battery car 1 of full electricity can be from the battery station b of pier 7, goes to deck through telescopic bridge 5 and supplies power to electric ship a, does not need the delivery vehicle delivery, does not need tower crane hoist and mount, and it is safe convenient to trade the electricity. The battery car 1 with the power shortage and the battery car 1 with the full power can act bidirectionally, the power exchanging time is short, and the power exchanging efficiency is high.

In one possible embodiment, as shown in fig. 1 and 13, a battery mating structure is provided on at least one of the electric vessel a and the power exchange station b. The battery car 1 has a lock engagement groove 114, and the battery engagement structure can lock the battery car 1 in a state where the battery car 1 travels to the battery exchange station b or the electric ship a, and unlock the battery car 1 when the battery car 1 receives a traveling instruction. In a state where the battery car 1 travels to the power exchange station b or the electric ship a, the battery car 1 can be fixed by the lock mechanism 4. The power change process does not need to be carried by a carrying tool or frequently disassemble and assemble the battery from the battery car 1, so that the power change of the electric ship a is safe and convenient.

In a possible embodiment, see fig. 4, 5 and 12, the electric vessel a and the power exchange station b each comprise a body 3, the body 3 having a support plate 31. The battery mating structure includes a stopper 311 and a locking mechanism 4. The limiting part 311 is arranged on the supporting plate 31, the limiting part 311 is provided with a limiting groove 3111 for the battery car 1 to enter, the locking mechanism 4 is arranged inside the body 3, the locking mechanism 4 is provided with a lifting column 41 and a locking piece 42, the locking piece 42 is arranged on the lifting column 41, and the locking piece 42 is provided with a movable lock tongue 421.

When the body 3 is part of the electric vessel a, the support plate 31 may be a deck of the electric vessel a. When the body 3 is part of the structure of the battery exchange station b, the support plate 31 may be a support table for supporting the battery car 1 on the battery exchange station b. In the state that the battery car 1 advances into the limit groove 3111, the lifting column 41 can extend out of the support plate 31 and penetrate through the locking matching groove 114, and the movable lock tongue 421 can extend out along the direction perpendicular to the lifting column 41, so as to be clamped on one side of the battery car 1 away from the support plate 31, that is, on the extension portion 115 of the car body 111 of the battery car 1, fix the battery car 1, and prevent the battery car 1 from shaking due to jolt in the running process of the electric ship a, and even the battery car 1 shifts relative to the electric ship a.

In a possible embodiment, see fig. 9 and 12, a first lifting device 32 is provided inside the body 3. The body 3 has a guide groove extending in a direction perpendicular to the support plate 31, and the lifting column 41 is slidably connected to the guide groove. The first lifting device 32 is in transmission connection with the lifting column 41 to drive the lifting column 41 to move up and down along the guide groove. The guide groove has a limiting effect on the lifting column 41, and the lifting column 41 moves up and down along the direction of the guide groove, so that the lifting column 41 is prevented from tilting. The first lifting device 32 may be a telescopic cylinder.

In one possible embodiment, see fig. 12, the body 3 has a guide sleeve 33. The guide sleeve 33 is located inside the body 3, and one end of the guide sleeve 33 is fixed to the support plate 31. The guide bush 33 has the guide groove. The end of the guide sleeve 33 is provided with a flange which is fixed on the support plate 31 through bolts. The guide bush 33 has a guide function for the lifting movement of the lifting column 41.

In one possible embodiment, the power conversion system further comprises a wear layer. The wear-resisting layer is attached to the inner wall of the guide groove. The wear-resistant layer can reduce the abrasion between the guide sleeve 33 and the lifting column 41, and prolong the service lives of the guide sleeve 33 and the lifting column 41. The wear-resistant layer may be a nylon guide sleeve.

In one possible embodiment, referring to fig. 10 and 11, the lifting column 41 has a cavity 411, and an inner wall of the cavity 411 is convexly provided with a hinge seat 414. One end of the first lifting device 32 is hinged to the body 3, the other end of the first lifting device 32 extends into the cavity 411, and the first lifting device 32 is hinged to the hinge seat 414. The lifting column 41 has a tapered tip portion, and the tapered tip portion of the lifting column 41 has a guiding function when the lifting column 41 moves up and down along the guiding groove, so that the lifting column 41 is inserted into the locking engagement groove 114.

In one possible embodiment, the lifting column 41 has a cavity 411 and a telescopic hole 412 communicating with the cavity 411, the locking member 42 is disposed in the cavity 411, and the locking member 42 can drive the movable lock tongue 421 to extend out of the telescopic hole 412 or retract from the telescopic hole 412 into the cavity 411.

In one possible embodiment, referring to fig. 11, a first mount 413 is disposed within the cavity 411. The locking piece 42 is mounted on the first mounting seat 413, the locking piece 42 includes an electric push rod 422, and the movable lock tongue 421 is in transmission connection with the electric push rod 422. The electric push rod 422 drives the movable lock tongue to extend out of the telescopic hole 412 or retract from the telescopic hole 412 into the cavity 411.

In a state that the battery car 1 moves into the limit groove 3111, the electric push rod 422 drives the movable lock tongue 421 to extend out of the telescopic hole 412, so as to be clamped in the extension 115 of the car body 111 of the battery car 1, and fix the battery car 1. When the battery car 1 leaves the limit groove 3111, the electric push rod 422 drives the movable lock tongue 421 to retract into the cavity 411 from the telescopic hole 412, and the battery car 1 is unlocked.

In one possible embodiment, referring to fig. 5 and 11, the inner wall of the cavity 411 is provided with a block 34. The block 34 is provided with a chute communicated with the telescopic hole 412, and the movable lock tongue 421 is slidably connected to the chute. The electric push rod 422 is hinged to the movable lock tongue 421. The electric push rod 422 is hinged to the movable lock tongue 421. The sliding groove has a guiding and limiting function on the expansion and contraction of the movable lock tongue 421, and the movable lock tongue 421 horizontally extends out along the sliding groove and horizontally retracts, so that the movable lock tongue 421 is prevented from tilting.

In one possible embodiment, referring to fig. 6 and 13, the limiting portion 311 includes two side baffles 3112 and one end baffle 3113. The two side blocks 3112 are disposed at intervals, the end block 3113 is disposed at one end of the side block 3112, the end block 3113 is connected to the two side blocks 3112, and a driving opening 3114 is formed at one end of the side block 3112 facing away from the end block 3113. When the battery car 1 advances into the limit portion 311, the laser radar 117 of the battery car 1 can detect that the distance between the battery car 1 and the side baffle 3112 and the end baffle 3113 of the limit portion 311 is the set required distance, the battery car 1 is stopped, the lifting column 41 extends out of the support plate 31 and penetrates through the locking matching groove 114, and the electric push rod 422 drives the movable lock tongue 421 to extend out of the telescopic hole 412 so as to be clamped on the extension portion 115 of the car body 111 of the battery car 1 to fix the battery car 1.

In one possible embodiment, see fig. 1 and 7, the electric ship a is provided with a first electrical connector a1 and a second lifting device a2. The first electrical connector a1 is electrically connected to a drive system of the electric ship a. The second lifting device a2 is disposed in the body 3 of the electric ship a, and the first electrical connector a1 is connected to the second lifting device a2. The battery car 1 has a second electrical connector 113. When the body 3 is a part of the electric ship a, the second lifting device a2 can drive the first electric connector a1 to extend out of the support plate 31 and electrically connect with the second electric connector 113 to supply power to the electric ship a in a state that the battery car 1 is moving into the limit groove 3111.

In a possible embodiment, a third electrical connector b1 and a third lifting device are provided on the station b, see fig. 3, 12 and 13. The third electric connector b1 is electrically connected to the charging equipment of the power exchange station b, the third lifting device is arranged in the body 3 of the power exchange station b, the third electric connector b1 is connected to the third lifting device, and the battery car 1 is provided with a second electric connector 113. When the body 3 is a part of the power exchanging station b, the third lifting device can drive the third electric connector b1 to extend out of the supporting plate 31 and electrically connect with the second electric connector 113 to charge the battery car 1 in a state that the battery car 1 moves into the limit groove 3111.

The third lifting device may have the same structure as the second lifting device a2, but may be disposed at different positions, the third lifting device is disposed at the power exchange station b, and the second lifting device a2 is disposed at the electric ship a.

In one possible embodiment, referring to fig. 7, 8 and 12, a second mounting seat 37 is provided on the support plate 31. The second mounting seat 37 is provided with a plurality of linear bearings 38, the first electrical connector a1 or the third electrical connector b1 is connected with a plurality of guide rods 39, and each guide rod 39 is slidably connected to the linear bearing 38. Each guide rod 39 can move up and down along the linear bearing 38, and plays a role of limiting the first electric connector a1 or the third electric connector b1, so as to prevent the first electric connector a1 or the third electric connector b1 from tilting during the up and down movement.

In one possible embodiment, referring to fig. 13 and 14, the battery car 1 includes a cart 11 and a battery box 12. The trolley 11 has a running gear 112, and a second electrical connector 113 is provided on the trolley 11. The battery box 12 is fixedly mounted on the trolley 11, and the battery box 12 is electrically connected with the second electrical connector 113. The running mechanism 112 can be a plurality of steering wheels, and can realize straight running, backward running and in-situ steering by being driven by a servo motor. This technology is a mature prior art and is not described in detail in this application. The battery box 12 and the trolley 11 can be fixed by bolts, and the battery box 12 and the trolley 11 are not disassembled as a whole in general. The trolley 11 has an extension 115 that protrudes out of the battery box 12. Each of the locking engagement grooves 114 is provided on the extension 115. The locking engagement groove 114 is provided on the extension portion 115, so as to avoid interference with the battery box 12 when the locking engagement groove 114 on the trolley 11 is in limit engagement with the locking mechanism 4 on the support plate 31.

In one possible embodiment, as shown in fig. 13, the cart 11 has a cart body 111, the cart body 111 has two side end faces 1111, the two side end faces 1111 are respectively provided on both sides of the cart body 111 in the width direction, and a plurality of rolling balls 1111a are provided on the two side end faces 1111. The rolling balls 1111a on each of the side end surfaces 1111 are sequentially spaced apart in the longitudinal direction of the vehicle body 111, and the rolling balls 1111a are rotatably connected to the vehicle body 111. The ball 1111a can avoid a rigid collision of the vehicle body 111 and the stopper 311 on the support plate 31 when the cart 11 travels to the stopper 311.

In one possible embodiment, the vehicle body 111 has two end faces 1112, the two end faces 1112 are disposed on both sides of the vehicle body 111 in the length direction, the end faces 1112 and the side end faces 1111 are connected by a chamfer 1113, and a ball 1111a is disposed on the chamfer 1113. The ball 1111a on the chamfer 1113 has a guiding function when the carriage 11 moves to the limit part 311.

In one possible embodiment, a vision camera 116 and a lidar 117 are provided on the trolley 11. The trolley 11 is provided with a control system, a vision camera 116, a laser radar 117 and a control system are connected, and the control system controls the running track of the trolley 11 according to information collected by the vision camera 116 and the laser radar 117. The control system can be arranged on the trolley 11 or can be a remote terminal and can be controlled automatically through a server or controlled by a control person.

In a possible embodiment, referring to fig. 1 and 2, the power conversion system further includes a guiding portion 6, where the guiding portion 6 includes a first guiding portion 61, a second guiding portion 62, and a third guiding portion 63, the first guiding portion 61 is disposed on the dock 7, the second guiding portion 62 is disposed on the telescopic bridge 5, and the third guiding portion 63 is disposed on the electric ship a. In the extended state of the telescopic bridge 5, the second guide portion 62 can connect the first guide portion 61 and the third guide portion 63. The battery car 1 can travel in the extending direction of the guide portion 6. The guide 6 is designed such that the trolley 11 can be moved in the direction of extension of the guide 6 to facilitate the travel of the trolley 11 onto the station b or the electric vessel a. The guiding part 6 can be provided with a mature prior art electromagnetic track for setting up its travel path, which is glued to the quay 7, the telescopic bridge 5 and the electric vessel a. The guiding part 6 may also be a colored coating, the trolley 11 is provided with a visual camera 116, and the trolley 11 can move precisely along the track of the guiding part 6.

The first guide part 61 extends from the power exchange station b to the telescopic bridge 5 on the wharf 7, the second guide part 62 extends along the telescopic bridge 5, and the third guide part 63 extends from the edge of the electric ship a to the position of the limit part 311 of the electric ship a.

In one possible embodiment, the second guide 62 includes a fixed guide 621 and a movable guide 622. The telescopic bridge 5 comprises a fixed section 51 and a movable section 52. The fixed guide portion 621 is disposed on the fixed section 51, the movable guide portion 622 is disposed on the movable section 52, and the fixed guide portion 621 is connected to the first guide portion 61. In the extended state, the movable guide 622 communicates with the fixed guide 621 and the third guide 63. The trajectories of the movable guide 622 and the fixed guide 621 smoothly transition.

The embodiment of the application also provides a power conversion method of the power conversion system, which comprises the following steps:

step S1, controlling the telescopic bridge 5 to be in an extension state. The second guide portion 62 can connect the first guide portion 61 and the third guide portion 63 in the extended state of the telescopic bridge 5. The battery car 1 can travel to a battery exchange station b or an electric ship a along the extending direction of the guide part 6.

And S2, controlling the electric ship a to travel to the connecting telescopic bridge 5. The fixed guide portion 621 is connected to the first guide portion 61. In the extended state, the movable guide 622 communicates with the fixed guide 621 and the third guide 63. The trajectories of the movable guide 622 and the fixed guide 621 smoothly transition.

And S3, controlling the battery car 1 with the power shortage on the electric ship a to travel to the power exchange station b for charging, and controlling the battery car 1 with the full power in the power exchange station b to travel from the power exchange station b to the electric ship a for supplying power to the electric ship a.

In one possible embodiment, the battery car 1 is provided with a vision camera 116 and a laser radar 117, and the electric ship a and the battery exchange station b each have a battery mating structure. When the battery car 1 receives a walking instruction, the battery matching structure can unlock the battery car 1. In a state where the battery car 1 travels to the power exchange station b or the electric ship a, the battery car 1 can be fixed by the lock mechanism 4.

The step S3 comprises the following steps:

in step S31, the battery car 1 obtains environmental information through the vision camera 116, obtains obstacle distance information through the laser radar 117, and controls the walking path according to the environmental information and the distance information to drive to the battery coordination structure of the electric ship a or the battery coordination structure of the battery exchange station b. The battery car 1 can move along the extending direction of the guiding part 6 so as to facilitate the battery car 1 to travel to the battery exchange station b or the electric ship. The guiding part 6 can be provided with a mature prior art electromagnetic track for setting up its travel path, which is glued to the quay 7, the telescopic bridge 5 and the electric vessel a. The guiding part 6 can also be a colored coating, the battery car 1 is provided with a visual camera 116, and the trolley 11 can accurately move to the battery matching structure of the electric ship a or the battery replacing station b along the track of the guiding part 6.

Step S32, the battery car 1 is locked by the battery matching structure in the power exchange station b, the battery car 1 is electrically connected with the battery matching structure in the power exchange station b to charge the battery car 1, or the battery car 1 is locked by the battery matching structure in the electric ship a, and the battery car 1 is electrically connected with the battery matching structure in the electric ship a to supply power for the electric ship a.

When the body 3 is a part of the electric ship a, the first lifting device 32 can drive the lifting column 41 to extend out of the support plate 31 and penetrate through the locking matching groove 114 in a state that the battery car 1 advances into the limit groove 3111, and the electric push rod 422 drives the movable lock tongue 421 to extend out of the telescopic hole 412 so as to be clamped in the extension portion 115 of the car body 111 of the battery car 1, so as to fix the battery car 1. The second lifting device a2 can drive the first electric connector a1 to extend out of the supporting plate 31 to be electrically connected with the second electric connector 113 to supply power for the electric ship a.

When the main body 3 is a part of the power exchange station b, the lifting column 41 extends out of the support plate 31 and penetrates through the locking matching groove 114 in a state that the battery car 1 advances into the limiting groove 3111, and the electric push rod 422 drives the movable lock tongue 421 to extend out of the telescopic hole 412 so as to be clamped in the extension portion 115 of the car body 111 of the battery car 1, so as to fix the battery car 1. The third lifting device can drive the third electric connector b1 to extend out of the supporting plate 31 to be electrically connected with the second electric connector 113 to charge the battery car 1.

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present invention without departing from the scope of the invention.

Claims

1. A power conversion system, comprising:

an electric ship;

the power exchange station is arranged at the wharf;

2. The power conversion system according to claim 1, wherein a battery engaging structure is provided on at least one of the electric ship and the power conversion station, the battery car has a lock engaging groove, the battery engaging structure can lock the battery car in a state where the battery car travels to the power conversion station or the electric ship, and the battery engaging structure can unlock the battery car when the battery car receives a traveling instruction;

preferably, the electric ship and the power exchange station each comprise a body, the body is provided with a supporting plate, the battery matching structure comprises a limiting part and a locking mechanism, the limiting part is arranged on the supporting plate, the limiting part is provided with a limiting groove for a battery car to drive in, the locking mechanism is arranged inside the body, the locking mechanism is provided with a lifting column and a locking piece, the locking piece is arranged on the lifting column, the locking piece is provided with a movable lock tongue, the lifting column can extend out of the supporting plate and penetrate through the locking matching groove in a state that the battery car enters into the limiting groove, and the movable lock tongue can extend out along a direction perpendicular to the lifting column so as to be clamped at one side of the battery car, which is away from the supporting plate.

Preferably, the body is internally provided with a first lifting device, the body is provided with a guide groove, the guide groove extends along the direction vertical to the supporting plate, the lifting column is slidably connected to the guide groove, and the first lifting device is in transmission connection with the lifting column so as to drive the lifting column to move along the guide groove in a lifting manner.

3. The power conversion system according to claim 2, comprising a wear layer, the body having a guide sleeve, the guide sleeve being located inside the body, and one end of the guide sleeve being fixed to the support plate, the guide sleeve having the guide groove, the wear layer being attached to an inner wall of the guide groove.

4. The power conversion system according to claim 2, wherein the lifting column is provided with a cavity and a telescopic hole communicated with the cavity, and a hinge seat is convexly arranged on the inner wall of the cavity;

one end of the first lifting device is hinged to the body, the other end of the first lifting device extends into the cavity, and the first lifting device is hinged to the hinging seat;

5. The power conversion system according to claim 4, wherein a first mounting seat is arranged in the cavity, the locking piece is mounted on the first mounting seat, the locking piece comprises an electric push rod, the movable lock tongue is in transmission connection with the electric push rod, and the electric push rod drives the movable lock tongue to extend out of the telescopic hole or retract into the cavity from the telescopic hole;

preferably, the inner wall of the cavity is provided with a block body, the block body is provided with a chute communicated with the telescopic hole, the movable lock tongue is slidably connected with the chute, and the electric push rod is hinged with the movable lock tongue.

6. The power conversion system according to claim 2, wherein the limiting portion includes two side blocking bodies and one end blocking body, the two side blocking bodies are arranged at intervals, the end blocking body is arranged at one end of the side blocking body, the end blocking body is connected with the two side blocking bodies, and an entry is formed at one end of the two side blocking bodies, which is away from the end blocking body;

preferably, the electric ship is provided with a first electric connector and a second lifting device, the first electric connector is electrically connected to a driving system of the electric ship, the second lifting device is arranged in the body of the electric ship, the first electric connector is connected to the second lifting device, the battery car is provided with a second electric connector, and the second lifting device can drive the first electric connector to extend out of the supporting plate to be electrically connected with the second electric connector in a state that the battery car moves into the limiting groove;

preferably, a third electric connector and a third lifting device are arranged on the power exchange station, the third electric connector is electrically connected to the charging equipment of the power exchange station, the third lifting device is arranged in the body of the power exchange station, the third electric connector is connected to the third lifting device, the battery car is provided with a second electric connector, and the third lifting device can drive the third electric connector to extend out of the supporting plate to be electrically connected with the second electric connector in a state that the battery car moves into the limiting groove;

preferably, the second mounting seat is arranged on the support plate, a plurality of linear bearings are arranged on the second mounting seat, a plurality of guide rods are connected to the first electric connector or the third electric connector, and the guide rods are respectively and slidably connected to the linear bearings.

7. The power conversion system according to claim 1, wherein the battery car comprises:

8. The power conversion system according to claim 7, wherein the cart has a body, the traveling mechanism and the discharge interface are both disposed at a bottom of the body, the battery box is fixed to a top of the body, and a plurality of locking engagement grooves are provided on the body.

9. The power exchanging system according to claim 7, wherein said cart has a body having two side end faces, both of said side end faces being provided on both sides of said body in a width direction, a plurality of balls being provided on both of said side end faces, each of said balls being provided on each of said side end faces at a distance in order along a length direction of said body, said balls being rotatably connected to said body;

preferably, the vehicle body is provided with two end faces, the two end faces are arranged on two sides of the vehicle body along the length direction, the end faces and the side end faces are connected through chamfer faces, and a rolling ball is arranged on the chamfer faces.

10. The power conversion system according to claim 1, further comprising a guide portion including a first guide portion provided at a dock, a second guide portion provided at the telescopic bridge, and a third guide portion provided at the electric ship;

the battery car can travel along the extending direction of the guide part.