CN113815479B

CN113815479B - Battery replacing equipment and battery replacing method

Info

Publication number: CN113815479B
Application number: CN202111285968.XA
Authority: CN
Inventors: 李想; 陈卫; 刘迎春; 谢维贵; 传国强
Original assignee: Chongqing Ganeng Electric Vehicle Technology Co ltd
Current assignee: Chongqing Ganeng Electric Vehicle Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2023-08-01
Anticipated expiration: 2041-10-29
Also published as: CN113815479A

Abstract

The application provides a battery replacement device, including: a plurality of power exchange stations, each power exchange station comprising a power exchange unit, the power exchange unit comprising a first battery and at least one power exchange potential; the plurality of picking and placing devices are respectively corresponding to the plurality of power exchanging stations; the battery replacement operation platform is respectively in communication connection with a plurality of battery replacement stations and a plurality of taking and placing devices and is used for: acquiring first battery data and station data of a power exchange station; acquiring the parking position and battery information of a battery-powered vehicle; judging whether the electric vehicle is moved to the electric potential change; transmitting power conversion information to a picking and placing device corresponding to the power conversion station; the taking and placing device receives the battery replacement information and moves to the lower part of the battery replacement vehicle, and enables the battery replacement vehicle to unlock the second battery, so that the unlocked second battery is taken down and is arranged in the corresponding battery replacement station for charging, and the first battery of the battery replacement station is taken down and is arranged on the battery replacement vehicle. The application also provides a power conversion method. The whole process is simple to operate, short in time consumption and high in power conversion efficiency.

Description

Battery replacing equipment and battery replacing method

Technical Field

The application relates to the technical field of electric vehicle power conversion, in particular to power conversion equipment and a power conversion method.

Background

The power conversion is an important mode for supplementing electric energy to the electric vehicle, and the power conversion mode which is put into the market in large quantity at present mainly comprises the power conversion of the chassis, namely, the chassis of the electric vehicle is provided with a plurality of batteries, and the power conversion equipment completes the supplementation of the electric energy to the electric vehicle by replacing the batteries at the bottom of the vehicle.

The existing vehicle is opened to the battery in the battery exchange station and the battery in the vehicle is unlocked or locked manually during battery replacement, and the taking and placing device is controlled to change the battery when the vehicle is in the battery exchange station, however, the battery replacement mode is long in time consumption, the manual unlocking or locking mode is complex in operation, and the battery replacement efficiency is low.

Disclosure of Invention

In view of the above, it is necessary to provide a power conversion device and a power conversion method to solve the technical problem of low power conversion efficiency in the prior art.

The application provides a battery replacement device, including:

the power exchange station comprises a power exchange unit, wherein the power exchange unit comprises a first battery full of power and at least one power exchange potential for parking a power exchange vehicle;

the plurality of picking and placing devices are respectively corresponding to the plurality of power exchanging stations and are used for exchanging the second battery to be exchanged of the power exchanging vehicle;

the battery replacement operation platform is respectively in communication connection with a plurality of battery replacement stations and a plurality of taking and placing devices and is used for:

acquiring first battery data and station data of the power exchange station;

acquiring the parking position and battery information of the battery-powered vehicle, wherein the battery information comprises second battery information;

judging whether the electric vehicle is moved to the electric potential change or not based on the parking position;

transmitting power change information to the pick-and-place device corresponding to the power change station based on the movement of the power change vehicle to the power change potential and the battery information;

the picking and placing device receives the battery replacement information and moves to the lower part of the battery replacement vehicle, and enables the battery replacement vehicle to unlock the second battery, so that the unlocked second battery is taken down and is arranged in the corresponding battery replacement station for charging, and the first battery of the battery replacement station is taken down and is arranged in the battery replacement vehicle.

In some embodiments, the battery-change vehicle further comprises a third battery to be charged, the battery-change station further comprising:

the energy storage unit is electrically connected with the power conversion unit, the power grid and the user and is used for storing electric energy input from the power grid so as to charge the second battery accommodated by the power conversion unit and supply power to the power grid and/or the user;

and the charging unit is electrically connected with the energy storage unit and the power grid and is used for charging the electric vehicle by utilizing the electric energy stored by the energy storage unit or the electric energy of the power grid.

In some embodiments, the power conversion unit includes:

the battery replacement device comprises at least two battery replacement components, wherein the battery replacement components are respectively used for accommodating a second battery and a full-power first battery which are taken from a battery replacement vehicle, each battery replacement component comprises a battery replacement frame, a first locking piece and a second locking piece, each battery replacement frame comprises a battery replacement bin used for accommodating the first battery or the second battery, and the first locking piece and the second locking piece are both arranged on the battery replacement frame and can extend into the battery replacement bin so as to lock the first battery or the second battery in a first direction or a second direction.

In some embodiments, the battery change vehicle has a signal receiver, the pick-and-place device has a signal generator adapted to the signal receiver, the signal generator being operable to trigger the signal receiver when the pick-and-place device moves under the second battery of the battery change vehicle to cause the battery change vehicle to unlock the second battery and cause the pick-and-place device to move to pick the second battery.

The application also provides a power conversion method which is applied to power conversion equipment, wherein the power conversion equipment comprises a plurality of power conversion stations, a picking and placing device and a power conversion operation platform, and comprises the following steps:

the power conversion operation platform acquires the parking position and battery information of a power conversion vehicle through the vehicle networking platform, wherein the battery information comprises second battery information to be converted;

the power exchange operation platform judges whether the power exchange vehicle moves to the power exchange potential of the power exchange station or not based on the parking position;

the power conversion operation platform moves to the power conversion potential based on the power conversion vehicle and sends power conversion information to the corresponding taking and placing device according to the battery information;

the picking and placing device receives the battery replacement information and moves to the lower part of the battery replacement vehicle, and enables the battery replacement vehicle to unlock the second battery, so that the unlocked second battery is taken down and is arranged in the corresponding battery replacement station to be charged, and the first battery of the battery replacement station is taken down and is arranged in the battery replacement vehicle.

In some embodiments, the battery-change vehicle further comprises a third battery to be charged, the battery-change station comprises an energy storage unit and a charging unit, the method further comprises:

the power conversion operation platform controls the energy storage unit to store electric energy input from a power grid, charges the second battery accommodated by the power conversion unit and supplies power to the power grid and/or a user, and controls the charging unit to charge the power conversion vehicle by utilizing the electric energy stored by the energy storage unit or the electric energy of the power grid.

In some embodiments, the power conversion operation platform may obtain site data and first battery data of the power conversion station, and the method further includes:

when the power exchange operation platform judges that the power exchange vehicle is not located at the power exchange potential and only needs to exchange power, the power exchange operation platform preferentially obtains information of the power exchange station which is closest to the power exchange vehicle and has an empty power exchange potential according to the station data of the power exchange station and the first battery data, and schedules the power exchange vehicle to move to the power exchange potential of the power exchange station according to the information of the power exchange station.

In some embodiments, when the battery exchange operation platform determines that the battery exchange vehicle is not located at the battery exchange potential and needs to exchange and charge, according to the station data and the first battery data of the battery exchange station, the battery exchange operation platform preferentially obtains information of the battery exchange station which is closest to the battery exchange vehicle and has an empty battery exchange potential and can charge, and schedules the battery exchange vehicle to move to the battery exchange station according to the information of the battery exchange station.

In some embodiments, the power-exchanging operation platform may directly control the power-exchanging vehicle to move to the power-exchanging potential.

In some embodiments, the method further comprises:

the power conversion operation platform can be in communication connection with a user terminal in the power conversion vehicle, and the user terminal can be used for power conversion order, navigation to the power conversion potential and power conversion settlement.

According to the battery replacement equipment and the battery replacement method, when the battery replacement operation platform judges that the battery replacement vehicle is located at the battery replacement potential, the battery replacement information is sent to the corresponding taking and placing device, the taking and placing device receives the battery replacement information and moves to the lower side of the battery replacement vehicle, and the battery replacement vehicle unlocks the second battery, so that the unlocked second battery is taken down and arranged in the corresponding battery replacement station to be charged, and the first battery of the battery replacement station is taken down and arranged on the battery replacement vehicle.

Drawings

Fig. 1 is a hardware architecture diagram of a power conversion device according to a first embodiment of the present application.

Fig. 2 is a schematic diagram of a power exchanging device and a power exchanging vehicle according to an embodiment shown in fig. 1.

Fig. 3 is an exploded view of a first embodiment of a power conversion unit of the power conversion station shown in fig. 2.

Fig. 4 is a schematic view of a battery structure of the battery module shown in fig. 3 locked to a size.

Fig. 5 is a schematic view of a battery structure of another size locked by the battery changing assembly shown in fig. 3.

Fig. 6 is an exploded view of the battery pack and the first battery shown in fig. 3.

Fig. 7 is an exploded view of a power exchanging unit according to a second embodiment of the power exchanging station shown in fig. 1.

Fig. 8 is a schematic perspective view of a power exchange station according to an embodiment shown in fig. 1.

Fig. 9 is an exploded view of the pick-and-place device according to the embodiment shown in fig. 1.

Fig. 10 is a schematic diagram of a power exchanging structure of the pick-and-place device and the power exchanging vehicle in fig. 1.

Fig. 11 is a flowchart of a power conversion method according to a second embodiment of the present application.

Description of the main reference signs

Battery changing device 100

Battery exchange station 10

Battery changing unit 101

Battery changing assembly 11

Battery changing frame 111

Change electric storehouse 1111

First hole 1112

Second hole 1113

First locking member 112

First telescoping rod 1121

First drive member 1122

Second locking member 113

Second telescoping rod 1131

Second drive member 1132

Floating suspension 114

Base 12

Change space 121

Charger 13

First plug member 131

Shroud 14

Visual recognition module 15

Energy storage unit 102

Charging unit 103

Charging gun 1032

Pick-and-place device 20

Movable seat 21

Moving wheel 211

Accommodation chamber 212

Drive module 22

Navigation module 23

Lifting mechanism 24

Driving piece 241

Lifting member 242

Positioning module 25

Signal generator 26

Electricity conversion operation platform 30

Internet of vehicles platform 40

First cell 1

Second plug-in connector 2

Locking hole 3

Battery change vehicle 4

Box frame controller 41

Signal receiver 5

Second battery 6

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, 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 either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

The application provides a battery replacement device, including:

acquiring first battery data and station data of the power exchange station;

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

Referring to fig. 1, a power conversion apparatus 100 is provided in a first embodiment of the present application, and includes a plurality of power conversion stations 10, a plurality of pick-and-place devices 20, and a power conversion operation platform 30.

Each power exchange station 10 comprises a power exchange unit 101, the power exchange unit 101 comprising a first battery 1 full of power and at least one power exchange potential for parking a power exchange vehicle 4. The plurality of pick-and-place devices 20 correspond to the plurality of battery exchange stations 10, respectively, for exchanging the second battery 6 to be exchanged of the battery exchange vehicle 4 (as shown in fig. 8 below). The battery replacing operation platform 30 is respectively in communication connection with the plurality of battery replacing stations 10 and the picking and placing device 20, and is used for: acquiring the parking position and battery information of the electric vehicle 4 through the internet of vehicles platform 40; judging whether the battery-change vehicle 4 moves to a battery-change potential or not based on the parking position; transmitting the battery replacement information to the pick-and-place device 20 corresponding to the battery replacement station 10 based on the movement of the battery replacement vehicle 4 to the battery replacement potential and the battery information; the taking and placing device 20 receives the power change information and moves to the lower side of the power change vehicle 4, and enables the power change vehicle 4 to unlock the second battery 6, so that the unlocked second battery 6 is taken down and installed in the corresponding power change station 10 to be charged, and the first battery 1 of the power change station 10 is taken down and installed in the power change vehicle 4, so that the power change operation is completed.

The number of the power exchanging stations 10 is plural, the number of the pick-and-place devices 20 corresponding to each power exchanging station 10 may be plural, and one power exchanging potential or plural power exchanging potentials may be provided around each power exchanging station 10, as shown in fig. 2, four power exchanging potentials are provided around the power exchanging station 10, and one power exchanging station 10 may perform power exchanging operation on four power exchanging vehicles 4 at the same time; the power exchanging operation platform 30 may be respectively connected to the plurality of power exchanging stations 10 and the plurality of picking and placing devices 20 in a communication manner.

Referring to fig. 3, in the first embodiment, the power exchanging unit 101 includes three power exchanging components 11, a base 12, a charger 13 and a cover 14.

The three battery changing assemblies 11 are arranged side by side in a line shape and are used for accommodating the second battery 6 taken down from the battery changing vehicle 4 and the fully charged first battery 1, wherein the second battery 6 can be a deficient battery or a dead battery; two of the power exchanging assemblies 11 accommodate the first battery 1, one of the power exchanging assemblies 11 is configured to accommodate the second battery 6 and can charge the second battery 6, and in fig. 3, the power exchanging compartment 1111 of one of the power exchanging assemblies 11 is empty.

Each battery exchanging assembly 11 comprises a battery exchanging frame 111, a first locking member 112 and a second locking member 113. The battery replacing frame 111 has a substantially frame-shaped structure, and the battery replacing frame 111 includes a battery replacing compartment 1111 for accommodating the first battery 1 or the second battery 6, where the length dimension or the width dimension of the battery replacing compartment 1111 is greater than that of the first battery 1 or the second battery 6. The first locking member 112 is disposed in the battery changing frame 111 and can extend into the battery changing compartment 1111 in a first direction to lock the first battery 1 or the second battery 6 in the first direction, the second locking member 113 is disposed in the battery changing frame 111 and can extend into the battery changing compartment 1111 in a second direction to lock the first battery 1 or the second battery 6 in the second direction, and the first locking member 112 and the second locking member 113 cooperate with each other to lock the first battery 1 or the second battery 6 in the first direction or the second direction. In this embodiment, the first direction is defined as the X-axis direction and the second direction is defined as the Y-axis direction.

Referring to fig. 4, taking the first battery 1 as an example, the long side dimension of the battery changing compartment 1111 is larger than the long side dimension of the first battery 1, and the short side dimension of the battery changing compartment 1111 is equal to the short side dimension of the first battery 1, and at this time, the short side of the second battery 6 can be locked by extending the second locking member 113 into the battery changing compartment 1111.

Referring to fig. 5, the long side dimension of the power conversion compartment 1111 is equal to the long side dimension of the first battery 1, and the short side dimension of the power conversion compartment 1111 is larger than the short side dimension of the first battery 1, and the long side of the first battery 1 can be locked by extending the first locking member 112 into the power conversion compartment 1111.

Referring to fig. 6, two first locking members 112 are disposed on each long side of the power conversion frame 111 at intervals, and the first locking members 112 on the two long sides of the power conversion frame 111 are disposed opposite to each other; two second locking pieces 113 are arranged at intervals on each short side of the battery changing frame 111, and the second locking pieces 113 on the two short sides of the battery changing frame 111 are oppositely arranged.

First locking member 112 includes a first telescoping rod 1121 and a first drive member 1122. The first telescopic rod 1121 is disposed on a long side of the battery changing frame 111, and a first hole 1112 is formed in the long side of the battery changing frame 111 corresponding to the position of the first telescopic rod 1121, and the first telescopic rod 1121 can move through the first hole 1112 in the first direction and extend into the battery changing cabin 1111 to be inserted into a locking hole 3 of the first battery 1 or the second battery 6 disposed in the first direction, so as to lock the first battery 1 or the second battery 6 in the first direction. The first driving member 1122 is disposed on a long side of the power conversion frame 111 and connected to the first telescopic rod 1121 to drive the first telescopic rod 1121 to move along the first direction. In this embodiment, the first driver 1122 is a cylinder.

Second locking member 113 includes a second telescoping rod 1131 and a second drive member 1132. The second telescopic rod 1131 is arranged on the short side of the battery changing frame 111, the position of the short side of the battery changing frame 111 corresponding to the second telescopic rod 1131 is provided with a second hole 1113, and the second telescopic rod 1131 can move in the second direction, pass through the second hole 1113 and extend into the battery changing bin 1111 to be inserted into the locking hole 3 of the first battery 1 or the second battery 6 arranged in the second direction, so that the first battery 1 or the second battery 6 is locked in the second direction. Second drive 1132 is coupled to second telescoping rod 1131 to drive second telescoping rod 1131 to move in a second direction. In this embodiment, the second driving member 1132 is a cylinder.

In some embodiments, the power conversion assembly 11 further includes a plurality of floating suspensions 114, and the number of floating suspensions 114 is four and disposed at four corners of the upper surface of the power conversion frame 111. Each floating suspension 114 is an independent suspension, one end of the floating suspension 114 is connected to the power exchange frame 111, and the other end of the floating suspension 114 is connected to the base 12, so that the power exchange frame 111 floats along the gravity direction during power exchange, and in this embodiment, the gravity direction is defined as the Z-axis direction.

In use, when the second battery 6 is mounted to the power changing bin 1111, the first driving member 1122 on the long side of the power changing frame 111 drives the first telescopic rod 1121 to move along the first direction, and inserts into the locking hole 3 of the second battery 6 arranged in the first direction, so as to lock the second battery 6 in the first direction; or the second driving member 1132 of the short side of the battery changing frame 111 drives the second telescopic rod 1131 to move along the second direction and insert into the locking hole 3 of the second battery 6 arranged in the second direction, thereby locking the second battery 6 in the second direction.

With continued reference to fig. 3, the base 12 is substantially rectangular and is configured to carry the power exchanging assembly 11, and a power exchanging space 121 is formed by hollowing out a position of the base 12 corresponding to the power exchanging assembly 11, and the taking and placing device 20 is configured to move from the outside to the power exchanging space 121 and reach below the power exchanging assembly 11, so as to lift the second battery 6 to a power exchanging cabin 1111 where the first battery 1 and the second battery 6 are not placed, and move the first battery 1 of the power exchanging cabin 1111 and move to the power exchanging vehicle 4 for power exchanging.

The charger 13 is disposed on the base 12 and is disposed on the corresponding battery replacing assembly 11, that is, the number of the chargers 13 is equal to the number of the battery replacing assemblies 11, and the charger 13 includes a first plug-in connector 131 for being inserted into the second plug-in connector 2 of the second battery 6 when the second battery 6 is lifted into the battery replacing bin 1111, so as to charge the second battery 6. In some embodiments, the first plug 131 is a charging plug, the second plug 2 is a charging socket, and the charger 13 can charge the second battery 6 after plugging the first plug and the second plug. In some embodiments, the second connector 2 is a charging socket, the second connector 2 is a charging plug, and the charger 13 can also charge the second battery 6 after the two connectors are plugged.

The shield 14 is arranged on the base 12 and covers the outer sides of the charger 13 and the battery replacement assembly 11, so that protection of the charger 13 and the battery replacement assembly 11 is formed, external foreign matters or water are prevented from entering the charger 13 and the battery replacement assembly 11, and the use of the charger 13 and the battery replacement assembly 11 is further affected.

In some embodiments, the power exchanging unit 101 further includes a visual recognition module 15, where the visual recognition module 15 is disposed on the shroud 14 and is used to obtain visual information of a first preset position to determine whether the power exchanging vehicle 4 moves to the first preset position, where the first preset position is a parking position of the power exchanging vehicle 4, i.e. a power exchanging potential, and the position of the power exchanging vehicle 4 is fixed, and when the visual recognition module 15 senses that the power exchanging vehicle 4 reaches the parking position, the power exchanging device 20 starts to move towards the power exchanging vehicle 4, and moves to take the second battery 6 of the power exchanging vehicle 4, and lifts the second battery 6 to the power exchanging vehicle 4. The visual recognition module 15 includes, but is not limited to, a camera, a CCD camera.

Referring to fig. 7, a power exchanging unit 101 in the second embodiment is substantially the same as the power exchanging unit 101 in the first embodiment in that:

the cover 14 in the second embodiment is substantially rectangular parallelepiped in shape, completely covers the upper surface of the base 12, and thus forms a rectangular parallelepiped structure with the base 12 as a whole; whereas the shield 14 in the first embodiment covers only a partial area of the base 12.

The number of the battery replacing assemblies 11 in the second embodiment is four, and the battery replacing assemblies 11 are arranged in a shape of a Chinese character 'tian', wherein three battery replacing assemblies 11 accommodate the first battery 1, one of the battery replacing assemblies 11 is used for accommodating the second battery 6 and charging the second battery 6, and the battery replacing bin 1111 of one of the battery replacing assemblies 11 in fig. 7 is empty. Correspondingly, the number of the chargers 13 is four, and the chargers are arranged in a shape like a Chinese character 'tian' and are respectively arranged above the four power conversion assemblies 11.

Referring to fig. 8, in some embodiments, the electric vehicle 4 further includes a third battery (shown) to be charged, for example, the third battery is charged to 60% of full power. The power exchange station 10 further comprises an energy storage unit 102 and a charging unit 103, wherein the energy storage unit 102 is electrically connected with the power exchange unit 101, the power grid and the user, and is used for storing electric energy input from the power grid so as to charge the second battery 6 accommodated in the power exchange unit 101 and supply power to the power grid and/or the user; the charging unit 103 is electrically connected to the energy storage unit 102 and the power grid, and is configured to charge the electric vehicle 4 by using the electric energy stored in the energy storage unit 102 or the electric energy of the power grid.

In some embodiments, the charging unit 103, the energy storage unit 102 and the power conversion unit 101 are integrally arranged, and the three units can be sequentially stacked according to the required number, so that the overall occupied area of the charging unit 103, the energy storage unit 102 and the power conversion unit 101 can be reduced, the layout is compact, and the power conversion and charging operation of the power conversion vehicle 4 in a vehicle conversion position can be realized; as shown in fig. 2, the number of the power exchanging units 101 is one and is located at the lowest position; the number of the charging units 103 is one and is located at the uppermost side; the number of the energy storage units 102 is two, and is stacked between the charging unit 103 and the battery replacing unit 101.

In some embodiments, if the electric energy of the first battery 1 of the power conversion unit 101 is surplus during the peak, that is, a part of the first battery 1 of the power conversion unit 101 can meet the power conversion requirement, at this time, another part of the first battery 1 can be converted into ac power and then sent to the power grid or the user, and the second battery 6 accommodated in the power conversion unit 101 is charged by the electric energy of the power grid during the valley, so that the commercial requirement can be met and the use cost of the power conversion station 10 is reduced.

In some embodiments, the energy storage unit 102 is configured to store electric energy input by the power grid, and charge and transfer the stored electric energy to the battery replacement unit 101 through the charging unit 103 to charge the second battery 6.

When the energy storage unit 102 needs to store energy, the ac power of the power grid can be converted into dc power and then transmitted to the energy storage unit 102 for energy storage. The energy storage unit 102 preferably stores the electric energy input from the power grid at the time of low electricity consumption, because the electricity price at this time is lower than the electricity price at the peak of electricity consumption, and the stored electric energy can be used for charging the electric vehicle 4 through the charging unit 103, charging the second battery 6 stored after the electric power is replaced by the electric power replacing unit 101, and supplying power to the power grid and/or the user at the peak of electricity consumption.

In some embodiments, if there is a surplus in the electric energy of the energy storage unit 102 at the time of peak electricity consumption or industrial electricity limitation, the electric energy stored in the energy storage unit 102 may be converted from dc power to ac power and delivered to the power grid or the consumer, thereby obtaining commercial benefits.

In some embodiments, the energy storage unit 102 includes a plurality of discarded batteries, which are used to reach the discard standard of the electric vehicle 4, but still store electricity, for example, the discarded batteries can only reach 50% of the new batteries after being fully charged, so that the discarded batteries of the electric vehicle 4 can be reused.

In some embodiments, the charging unit 103 includes a charging gun 1032, where the charging gun 1032 is configured to charge the electric vehicle 4 by using the electric energy stored in the energy storage unit 102 and the electric energy of the electric network, and may specifically be set according to a principle of minimum charging cost, for example, when the electricity consumption is high in a peak, the electricity price is high, and at this time, the electric energy stored in the energy storage unit 102 may be used to charge the electric vehicle 4; for example, in the low electricity consumption mode, the electricity price is low, and the electric power of the electric network can be used to charge the electric vehicle 4. In the present embodiment, the number of charging guns 1032 is two. It will be appreciated that in other embodiments, the number of charging guns 1032 may be three, and that three electric vehicles 4 may be charged simultaneously, respectively.

It will be appreciated by those skilled in the art that the peak and valley of the grid may be set according to the time period, for example, 9 to 18 peak and 18 to 9 valley the next day.

Referring to fig. 9, the pick-and-place device 20 includes a moving base 21, a driving module 22, a navigation module 23, and a lifting mechanism 24.

Four moving wheels 211 are provided at the bottom of the moving base 21 to move the moving base 21. In the present embodiment, the moving wheel 211 is a Mecanum wheel.

The driving modules 22 are disposed on the moving base 21 and respectively connected to the moving wheels 211, for driving the moving wheels 211 to rotate so as to move the moving base 21 in the first direction and/or the second direction. In this embodiment, the driving module 22 is two motors, and one motor is respectively connected to the two moving wheels 211 to drive the two moving wheels 211 to move simultaneously.

The navigation module 23 is disposed on the movable seat 21, and is configured to set a travel path between the lower position of the second battery 6 of the vehicle 4 and the pick-and-place device 20, so as to navigate the movement of the movable seat 21.

The lifting mechanism 24 is arranged on the movable seat 21, the lifting mechanism 24 comprises a driving piece 241 and a lifting piece 242, the middle part of the movable seat 21 is provided with a containing cavity 212, the lifting piece 242 is approximately plate-shaped, and the lifting piece 242 is arranged in the containing cavity 212; the four driving members 241 are respectively disposed on two opposite sides of the lifting member 242, one side of each lifting member 242 is connected with two driving members 241, and the four driving members 241 are simultaneously started to drive the lifting member 242 to lift or descend, so as to load the second battery 6 of the electric vehicle 4 and lift the second battery 6 to the electric vehicle changing cabin 1111, and load the first battery 1 of the electric vehicle changing cabin 1111 and lift the first battery 1 to the electric vehicle changing 4. In this embodiment, after the lifting member 242 carries the second battery 6, the driving member 241 drives the lifting member 242 to descend, so that the second battery 6 is accommodated in the accommodating cavity 212.

In some embodiments, the pick-and-place device 20 includes a positioning module 25, where the positioning module 25 is disposed on the moving seat 21 and is used to obtain positioning information after the vehicle 4 moves to the parking space, so that the pick-and-place device 20 is automatically aligned and moves below the second battery 6 of the vehicle 4. Wherein the positioning module 25 includes, but is not limited to, a laser sensor.

In some embodiments, referring to fig. 1 and 10 together, the electric vehicle 4 has a signal receiver 5, the signal receiver 5 is mounted on a box frame of the electric vehicle 4, the pick-and-place device 20 has a signal generator 26 adapted to the signal receiver 5, and the signal generator 26 can trigger the signal receiver 5 when the pick-and-place device 20 moves below the second battery 6 of the electric vehicle 4, so that the electric vehicle 4 unlocks the second battery 6 and the pick-and-place device 20 moves to pick the second battery 6. In this embodiment, the signal generator 26 is active, the signal receiver 5 is passive, when the spatial distance between the signal generator 26 and the signal receiver 5 is smaller than a preset distance, for example smaller than 10mm, the signal generator 26 provides power for the signal receiver 5 through a wireless charging mode, meanwhile, the signal receiver 5 can receive the signal sent by the signal generator 26 and output a level signal to wake up the box frame controller 41, the box frame controller 41 joins the local area network in the power exchange station 10 according to a set protocol and sends the identity ID information, the state information and the like of the box frame controller 41 to the power exchange operation platform 30, and the power exchange operation platform 30 controls the box frame controller 41 of the power exchange vehicle 4 to unlock the second battery 6 after confirming.

In the above-mentioned battery replacing device 100, when the battery replacing operation platform 30 determines that the battery replacing vehicle 4 is located at the battery replacing position, the battery replacing information is sent to the corresponding taking and placing device 20, the taking and placing device 20 receives the battery replacing information and moves to the lower side of the battery replacing vehicle 4, and the battery replacing vehicle 4 unlocks the second battery 6, so that the unlocked second battery 6 is taken down and installed in the corresponding battery replacing station 10 to be charged, and the first battery 1 of the battery replacing station 10 is taken down and installed in the battery replacing vehicle 4.

Referring to fig. 11, a power conversion method is further provided in the second embodiment of the present application, and the power conversion method is applied to, for example, the power conversion device 100 in fig. 1, where the power conversion device 100 includes a plurality of power conversion stations 10, a pick-and-place device 20 corresponding to the power conversion stations 10, and a power conversion operation platform 30, and includes:

s210, the battery replacement operation platform 30 obtains the parking position and battery information of the battery replacement vehicle 4 through the vehicle networking platform 40, wherein the battery information comprises second battery information to be replaced;

when the battery-powered vehicle 4 enters the battery-powered device 100, the battery-powered operation platform 30 may obtain the parking position and battery information of the battery-powered vehicle 4 through the internet of vehicles platform 40, and correspondingly, the battery-powered operation platform 30 may share the in-station battery data and the station data of the plurality of battery-powered stations 10 with the internet of vehicles platform 40.

S220, the power-exchanging operation platform 30 judges whether the power-exchanging vehicle 4 moves to the power-exchanging potential of the power-exchanging station 10 based on the parking position;

s230, the power exchange operation platform 30 moves to a power exchange potential based on the power exchange vehicle 4 and sends power exchange information to the corresponding taking and placing device 20 according to battery information;

s240, the pick-and-place device 20 receives the battery replacement information and moves to the lower side of the battery replacement vehicle 4 and unlocks the battery replacement vehicle 4 to unlock the second battery 6, so as to take down the unlocked second battery 6 and install the unlocked second battery in the corresponding battery replacement station 10 for charging, and take down the first battery 1 of the battery replacement station 10 and install the unlocked second battery in the battery replacement vehicle 4.

In some embodiments, the battery-exchange vehicle 4 further comprises a third battery to be charged, the battery-exchange station comprises an energy storage unit 102 and a charging unit 103, the method further comprising:

the battery-replacing operation platform 30 controls the energy storage unit 102 to store the electric energy input from the electric grid and charge the second battery 6 accommodated in the battery-replacing unit 101 and supply power to the electric grid and/or the user, and controls the charging unit to charge the battery-replacing vehicle 4 by using the electric energy stored by the energy storage unit or the electric energy of the electric grid.

In some embodiments, the method further comprises:

when the battery change operation platform 30 determines that the battery change vehicle 4 is not at the battery change level and only needs to change the battery, the battery change operation platform 30 preferentially obtains the information of the battery change station 10 closest to the battery change vehicle 4 and having the empty battery change level according to the station data and the first battery data of the battery change station 10, and schedules the battery change vehicle to move to the battery change level of the battery change station according to the information of the battery change station.

In some embodiments, when the battery exchange operation platform 30 determines that the battery exchange vehicle 4 is not at the battery exchange potential and needs to exchange and charge, the battery exchange operation platform 30 preferentially obtains information of the battery exchange station 10 closest to the battery exchange vehicle 4 and having an empty battery exchange potential and being able to charge according to the station data and the first battery data of the battery exchange station 10, and schedules the battery exchange vehicle 4 to move to the battery exchange potential of the battery exchange station 10 according to the information of the battery exchange station 10.

In some embodiments, the battery-change operation platform 30 may directly control the battery-change vehicle 4 to move to the battery-change potential. In some embodiments, the electric vehicle 4 may also be moved to a commutation potential by manual control.

In some embodiments, the method further comprises:

the power change operation platform 30 can be in communication connection with a user terminal in the power change vehicle 4, the user terminal is bound with a frame number of the power change vehicle 4, and power change order, navigation to a power change potential and power change settlement can be performed through the user terminal.

In the above-mentioned power conversion method, when the power conversion operation platform 30 determines that the power conversion vehicle 4 is at the power conversion level, the power conversion information is sent to the corresponding taking and placing device 20, the taking and placing device 20 receives the power conversion information and moves to the lower side of the power conversion vehicle 4, and the power conversion vehicle 4 unlocks the second battery, so that the unlocked second battery 6 is taken down and installed in the corresponding power conversion station 10 to be charged, and the first battery 1 of the power conversion station 10 is taken down and installed in the power conversion vehicle 4.

In addition, those of ordinary skill in the art will recognize that the above embodiments are presented for purposes of illustration only and are not intended to be limiting, and that suitable modifications and variations of the above embodiments are within the scope of the disclosure of the present application.

Claims

1. A power conversion apparatus, comprising:

the battery replacing unit is used for replacing batteries with different sizes of the battery replacing vehicles, the battery replacing unit comprises a battery replacing frame, a first locking piece and a second locking piece, the battery replacing frame comprises a battery replacing bin used for accommodating the first battery or the second battery, the long side size of the battery replacing bin is larger than the long side size of the first battery or the second battery and is matched with the short side size of the first battery or the second battery, or the short side size of the battery replacing bin is larger than the short side size of the first battery or the second battery and is matched with the long side size of the first battery or the second battery, and the first locking piece and the second locking piece are arranged on the battery replacing frame and can extend into the battery replacing bin so as to lock the first battery or the second battery in a first direction or a second direction;

acquiring first battery data and station data of the power exchange station;

2. The power conversion apparatus according to claim 1, wherein the power conversion vehicle further includes a third battery to be charged, the power conversion station further comprising:

3. The power conversion apparatus according to claim 1, wherein the power conversion unit includes:

the at least two battery replacement assemblies are respectively used for accommodating a second battery and a full-power first battery which are taken from the battery replacement vehicle, and each battery replacement assembly comprises a battery replacement frame, a first locking piece and a second locking piece.

4. The battery exchange apparatus according to claim 1, wherein the battery exchange vehicle has a signal receiver, the pick-and-place device has a signal generator adapted to the signal receiver, the signal generator being operable to trigger the signal receiver when the pick-and-place device moves below the second battery of the battery exchange vehicle to cause the battery exchange vehicle to unlock the second battery and cause the pick-and-place device to move to pick the second battery.

5. The battery replacement method is applied to battery replacement equipment and is characterized in that each battery replacement station comprises a battery replacement unit, each battery replacement unit is used for replacing batteries with different sizes of different battery replacement vehicles, each battery replacement unit comprises a battery replacement frame, a first locking piece and a second locking piece, each battery replacement frame comprises a battery replacement bin used for accommodating a first battery or a second battery, the long side size of each battery replacement bin is larger than the long side size of the first battery or the second battery, the short side size of each battery replacement bin is matched with the short side size of the first battery or the second battery, or the short side size of each battery replacement bin is larger than the short side size of the first battery or the second battery, the first locking piece and the second locking piece are arranged on the battery replacement frame and can extend into the battery replacement frame in the first direction or the second direction; the method comprises the following steps:

6. The power conversion method according to claim 5, wherein the power conversion vehicle further includes a third battery to be charged, the power conversion station includes an energy storage unit and a charging unit, the method further includes:

7. The power conversion method according to claim 5, wherein the power conversion operation platform can acquire site data and first battery data of the power conversion station, the method further comprising:

8. The power exchanging method according to claim 6, wherein when the power exchanging operation platform judges that the power exchanging vehicle is not located at the power exchanging station and needs to exchange and charge, the power exchanging operation platform preferentially obtains information of the power exchanging station which is closest to the power exchanging vehicle and has an empty power exchanging station and can charge according to the station data and the first battery data of the power exchanging station, and schedules the power exchanging vehicle to move to the power exchanging station according to the information of the power exchanging station.

9. The power conversion method according to claim 7 or 8, wherein the power conversion operation platform can directly control the power conversion vehicle to move to the power conversion potential.

10. The power conversion method of claim 6, wherein the method further comprises: