Battery replacement method and battery replacement system for battery distribution vehicle

Abstract

The invention discloses a battery replacing method and system for a battery distribution vehicle, and the method comprises the following steps: S1, taking out a power-deficient battery from a vehicle body to be replaced by a battery replacing device of a mobile battery replacing station, and loading the power-deficient battery into a turnover bin of the mobile battery replacing station or a transit bin of the battery distribution vehicle; s2, taking out the fully-charged battery on the mobile battery swap station or the battery distribution vehicle by the battery swap equipment of the mobile battery swap station, and loading the fully-charged battery on the vehicle body to be subjected to battery swap; repeating the steps S1-S2 until the battery replacement of the to-be-replaced vehicle body is completed; s3, the battery replacing equipment of the mobile battery replacing station takes out the low-power batteries of the mobile battery replacing station, loads the low-power batteries into the battery distribution vehicle, and loads the full-power batteries on the battery distribution vehicle into the mobile battery replacing station; and the step S3 is repeated until all the fully-charged batteries of the battery distribution vehicle are transferred to the mobile battery swap station. On one hand, the problem of low efficiency of charging in independent operation of the mobile battery swap station can be solved, and on the other hand, battery storage can be provided for operation of the mobile battery swap station.

Description

Technical Field

[0001] The present invention relates to the technical field of battery replacement for new energy vehicles, and in particular to a battery replacement method and a battery replacement system for a battery delivery vehicle. Background Art

[0002] The transportation routes of some battery-swapping heavy trucks or battery-swapping engineering vehicles are not fixed, and the construction sites or loading and unloading sites of some battery-swapping vehicles may change at any time. Fixed battery-swapping stations cannot be relocated at any time to follow the changes in transportation routes, resulting in long distances for drivers to switch batteries, a lower proportion of effective transportation time, and a reduction in effective transportation mileage, which leads to poor overall revenue. In addition, new battery-swapping stations will face problems such as complex processes, increased power capacity, long construction and commissioning cycles, and high costs. Finally, some fixed stations may encounter situations where they cannot switch batteries due to various faults, which will have many impacts on the parties involved in the battery-swapping stations, and they need to seek a temporary or short-term battery-swapping or power-replenishing solution to solve the battery-swapping problem of new energy vehicles.

[0003] In the prior art, one way of recharging a mobile battery swap station (vehicle) is that after each replacement of a fully-charged battery, the operator needs to carry the depleted battery to a nearby charging station for recharging and replacing it with a fully-charged battery, and then return to the work site to perform the battery replacement work. This undoubtedly greatly reduces the efficiency of the battery replacement work of the mobile battery swap station (vehicle).

[0004] Based on the above problems, there is an urgent need to provide a battery replacement method and battery replacement station for a battery delivery vehicle, which can, on the one hand, solve the problem of inefficient charging of mobile battery replacement stations operating alone, and on the other hand, provide battery storage for mobile battery replacement stations without storage space.

[0005] In view of this, it is necessary to improve the deficiencies in the prior art to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a battery replacement method and a battery replacement system for a battery delivery vehicle, so as to solve the problems existing in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: The first object of the present invention is to provide a battery replacement method for a battery delivery vehicle, comprising the following steps: Step S1, the battery swapping equipment of the mobile battery swapping station takes out the depleted battery on the vehicle body to be swapped, and loads it into the turnover bin of the mobile battery swapping station or the transfer bin of the battery delivery vehicle, wherein the battery swapping equipment includes a telescopic arm and a battery pack grabbing device arranged at one end of the telescopic arm; Step S2: The battery swapping equipment of the mobile battery swapping station takes out the fully charged battery from the mobile battery swapping station or the battery delivery vehicle, and installs it into the vehicle body to be swapped; Repeat steps S1-S2 until the battery replacement of the vehicle body to be replaced is completed; Step S3: The battery swapping equipment of the mobile battery swapping station takes out the depleted batteries of the mobile battery swapping station and loads them onto the battery delivery vehicle, and loads the fully charged batteries on the battery delivery vehicle onto the mobile battery swapping station; Repeat step S3 until all fully charged batteries of the battery delivery vehicle are transferred to the mobile battery swap station.

[0008] As a further improvement of the present invention, in step S1, it includes: S11. The vehicle to be replaced stops at one side of the mobile replacement station according to the guidance of the positioning device, and the replacement equipment moves to the working position of the mobile replacement station; S12, the telescopic arm of the battery swapping equipment moves and extends toward the side of the vehicle body to be swapped, and the battery pack grabbing device moves along the length direction of the telescopic arm to above the depleted battery of the vehicle body to be swapped; S13, the battery pack grabbing device descends to grab the low-power battery on the vehicle body to be replaced and then rises; S14. The telescopic arm of the battery swapping equipment drives the battery pack grabbing device to move in the opposite direction of the side of the vehicle body to be swapped, and moves the low-power battery to the top of the mobile battery swapping station or the battery delivery vehicle; S15. The battery swapping equipment is moved to the turnover warehouse of the mobile battery swapping station or the corresponding transfer warehouse of the battery delivery vehicle. The battery pack grabbing device descends to place the depleted battery on the turnover warehouse or transfer warehouse.

[0009] As a further improvement of the present invention, in step S2, it includes: S21. The battery swapping equipment is moved to a mobile battery swapping station or to a fully charged battery corresponding to a battery delivery vehicle; S22, the telescopic arm of the battery swapping equipment moves toward the side of the mobile battery swapping station or the battery delivery vehicle, and the battery pack grabbing device moves along the length direction of the telescopic arm to above the fully charged battery of the mobile battery swapping station or the battery delivery vehicle; S23, the battery pack grabbing device descends and grabs the fully charged battery on the mobile battery swap station or battery delivery vehicle and then rises; S24, the telescopic arm of the battery swapping equipment moves horizontally toward the side of the vehicle body to be swapped, and the battery pack grabbing device moves toward the side of the vehicle body to be swapped along the length direction of the telescopic arm, bringing the fully charged battery to the top of the vehicle body to be swapped; S25. The battery pack grabbing device descends and installs the fully charged battery on the vehicle body to be replaced.

[0010] As a further improvement of the present invention, in step S3, it includes: S31, the battery swapping equipment moves to the location of the low-power battery on the mobile battery swapping station; S32, the telescopic arm of the battery swapping equipment moves and extends toward the side of the battery delivery vehicle, and the battery pack grabbing device moves along the length direction of the telescopic arm to above the exhausted battery of the mobile battery swapping station; S33, the battery pack grabbing device descends to grab the low-power battery on the mobile battery swap station and then rises; S34, the battery pack grabbing device moves along the length direction of the telescopic arm toward one side of the battery delivery vehicle, driving the low-power battery to move to the top of the battery delivery vehicle; S35, the battery pack grabbing device descends to place the low-power battery on the battery delivery vehicle; S36. The battery replacement equipment is moved to the fully charged battery of the corresponding battery delivery vehicle; S37, the battery pack grabbing device descends to grab the fully charged battery of the battery delivery vehicle and then rises; S38, the battery pack grabbing device moves along the length direction of the telescopic arm toward one side of the mobile battery swap station, driving the fully charged battery to move to the top of the mobile battery swap station; S39, the battery pack grabbing device descends to place the fully charged battery on the mobile battery swap station; Repeat S31-S39 until all fully charged batteries of the battery delivery vehicle are transferred to the mobile battery swap station.

[0011] A second object of the present invention is to provide a battery replacement system, comprising: Battery delivery vehicles, used to transport battery packs; The vehicle body to be replaced is detachably equipped with a battery for providing power; The mobile battery swap station is equipped with battery swap equipment, which is used to remove the depleted batteries on the vehicle body to be replaced and load them onto the mobile battery swap station or battery delivery vehicle, and then remove the fully charged batteries from the mobile battery swap station or battery delivery vehicle and load them onto the vehicle body to be replaced. It can also remove the depleted batteries from the mobile battery swap station and load them onto the battery delivery vehicle, and remove the fully charged batteries from the battery delivery vehicle and load them onto the mobile battery swap station.

[0012] As a further improvement of the present invention, the mobile battery swap station is provided with a turnover bin for temporarily storing low-power batteries and a work station for the battery swap equipment to perform battery swap operations, and tracks for the battery swap equipment to slide are provided on both sides.

[0013] As a further improvement of the present invention, a positioning device is provided on the mobile battery swap station, and the positioning device is used to transmit a positioning signal to guide the battery body to be swapped and the battery delivery vehicle to move to a set position.

[0014] As a further improvement of the present invention, it includes a control device, which has a plurality of control keys, and each control key controls the battery exchange equipment to perform a corresponding battery exchange action.

[0015] As a further improvement of the present invention, the battery swapping device includes a main frame, a telescopic arm slidably mounted on the top of the main frame, and a battery pack grabbing device connected to one end of the telescopic arm; The main frame is set on the mobile battery swap station. The bottom is connected by a pulley and can move longitudinally along the travel direction of the battery swap vehicle on the track in the mobile battery swap station. A telescopic arm is horizontally arranged on the top of the main frame, the telescopic arm can move up and down relative to the main frame and has end arms that can extend to both sides of the mobile battery swap station; The battery pack grabbing device is connected to the end wall of the telescopic arm through a flexible suspension rope.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention discloses a battery replacement method and a battery replacement system for a battery delivery vehicle. The battery delivery vehicle can adopt either a backup power warehouse mode or a pure power distribution mode. When the backup power warehouse mode is adopted, a transfer warehouse needs to be set up. The battery can be replaced on the vehicle body to be replaced or the mobile power exchange station can be recharged. When the pure power distribution mode is adopted, the transfer warehouse does not need to be set up, that is, the mobile power exchange station can be directly recharged and the vehicle can leave after the recharge is completed. It is convenient and flexible.

[0017] (2) When the battery delivery vehicle in the present invention adopts the battery reserve warehouse mode, it can be used in mobile battery swap stations (vehicles) without storage space, and can also be used in mobile battery swap stations (vehicles) with storage space and some batteries in the storage space. During the battery swap process, the battery delivery vehicle and the vehicle to be swapped are parked on both sides of the mobile battery swap station (vehicle); The battery delivery vehicle acts as a battery storage device, which allows charging and battery replacement to be carried out simultaneously, and provides storage space for mobile battery replacement stations (vehicles) that have no storage space or cannot be used due to storage space failure, thus making the operation of such battery replacement equipment possible.

[0018] (3) The battery delivery vehicle in the present invention adopts a pure power distribution mode, and completes the charging of the battery exchange equipment by exchanging low-power batteries and fully-charged batteries with mobile battery exchange stations (vehicles) with storage spaces. It is applicable to mobile battery exchange stations (vehicles) with fully-charged low-power batteries and mobile battery exchange stations (vehicles) with partially-charged low-power batteries. The delivery vehicle battery completes the charging of the battery exchange equipment in turn, and the vehicle can leave after the charging is completed. It does not need to participate in the battery exchange process, and can leave after the charging is completed, which is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of charging the battery delivery vehicle in the present invention; Figure 2 This is a schematic diagram of the battery delivery vehicle in the backup power mode of the present invention; Figure 3 This is a schematic diagram of the delivery vehicle in the pure power distribution mode of the present invention; Figure 4 It is a schematic diagram of the battery replenishment and replacement process in the standby mode of the battery distribution vehicle in the present invention; Figure 5It is a schematic diagram of the charging process of the battery distribution vehicle in the pure distribution mode of the present invention.

[0020] In the figure, 1. Mobile battery swap station; 2. Battery pack; 3. Battery swap equipment; 3-1. Telescopic arm; 3-2. Battery pack grabbing device; 3-3. Main frame; 4. Turnover warehouse; 5. Battery delivery vehicle; 6. Transit warehouse; 7. Storage space. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, the present invention discloses a battery exchange system, including a battery body to be exchanged, a mobile battery exchange station 1 and a battery delivery vehicle 5. The mobile battery exchange station 1 mentioned in the present invention can also be a mobile battery exchange vehicle or a passive and easily relocatable battery exchange station such as a skid-mounted battery exchange station. This type of mobile and flexible battery exchange station is equipped with battery exchange equipment, also called a battery exchange robot, which needs no further explanation here.

[0023] The vehicle body to be replaced is equipped with a detachable and replaceable battery pack 2, the mobile battery replacement station 1 is provided with a battery replacement device 3, a turnover warehouse 4 for battery storage and a work station for the battery replacement device 3 to perform battery replacement operations, a battery delivery vehicle 5 is used to transport batteries, and a transfer warehouse 6 for transferring batteries is provided; The mobile battery swap station 1 can be moved to any position and is provided with a battery swap device 3. The battery swap device 3 is used to remove the depleted battery on the vehicle body to be replaced and load it onto the mobile battery swap station 1 or the battery delivery vehicle 5, and then remove the fully charged battery from the mobile battery swap station 1 or the battery delivery vehicle 5 and load it onto the vehicle body to be replaced. It can also remove the depleted battery on the mobile battery swap station 1 and load it onto the battery delivery vehicle 5, and remove the fully charged battery on the battery delivery vehicle 5 and load it onto the mobile battery swap station 1.

[0024] Parallel tracks for the battery swapping equipment 3 to slide are arranged on both sides of the mobile battery swapping station 1. The battery swapping equipment 3 includes a main frame 3-3, a telescopic arm 3-1 slidably mounted on the top of the main frame 3-3, and a battery pack grabbing device 3-2 connected to one end of the telescopic arm 3-1; The main frame 3-3 is arranged on the mobile battery swap station 1, and the bottom is connected by a pulley rolling connection, so that it can move longitudinally along the travel direction of the battery swap body on the track in the mobile battery swap station 1. A telescopic arm 3-1 is horizontally arranged on the top of the main frame 3-3, and the telescopic arm 3-1 can move up and down relative to the main frame 3-3 and has end arms that can extend to both sides of the mobile battery swap station 1; The battery pack grabbing device 3-2 is connected to the end wall of the telescopic arm 3-1 through a flexible suspension rope.

[0025] In addition, a positioning device is installed on the mobile battery swap station 1, which is used to transmit a positioning signal to guide the battery swap body and the battery delivery vehicle 5 to move to the set position. When the battery swap body and the battery delivery vehicle 5 stop at the set position, they are located on both sides of the mobile battery swap station 1 respectively; In addition, it includes a control device, which has multiple control keys, each of which controls the battery exchange equipment 3 to perform corresponding battery exchange actions, including the movement of the main frame 3-3, the telescopic movement of the telescopic arm, the lifting and lowering of the lifting rope, and the battery pack grabbing device 3-2 grabbing the battery pack 2. The control device can be a control panel, a vehicle-mounted display screen, or a remote control that is easy to hold.

[0026] Based on the above battery replacement system, the present invention proposes a battery replacement and charging method for a battery delivery vehicle, comprising the following steps: Step S1, the battery swapping equipment 3 of the mobile battery swapping station 1 takes out the depleted battery on the vehicle body to be swapped, and loads it into the turnover bin 4 of the mobile battery swapping station 1 or the transfer bin 6 of the battery delivery vehicle 5; Step S2, the battery exchange equipment 3 of the mobile battery exchange station 1 takes out the fully charged battery from the mobile battery exchange station 1 or the battery delivery vehicle 5, and installs it on the vehicle body to be exchanged; Repeat steps S1-S2 until the battery replacement of the vehicle body to be replaced is completed; Step S3, the battery swapping equipment 3 of the mobile battery swapping station 1 takes out the depleted battery of the mobile battery swapping station 1 and loads it onto the battery delivery vehicle 5, and loads the fully charged battery on the battery delivery vehicle 5 onto the mobile battery swapping station 1; Repeat step S3 until all fully charged batteries of the battery delivery vehicle 5 are transferred to the mobile battery swap station 1 .

[0027] Embodiment 1 like Figure 4 According to a battery replacement system provided by the present invention, a battery replacement method is proposed, comprising the following steps: S0: Initial state setting: the mobile battery swap station waits for the battery delivery vehicle 5 to arrive; S1: Positioning of the battery delivery vehicle 5: Under the guidance of the positioning device, the battery delivery vehicle 5 stops at a designated position on one side of the mobile battery swap station; S2: Positioning of the vehicle to be replaced: guided by the positioning device, the vehicle to be replaced stops at the designated location on the other side of the mobile battery replacement station; S3: Removing the depleted battery: The battery swapping device 3 grabs the depleted battery on the vehicle to be swapped, passes through the upper part of the working position of the mobile battery swapping station, and then moves horizontally and lowers it to the transfer warehouse 6 of the battery delivery vehicle 5; S4: Replace with a fully charged battery: The battery exchange device 3 moves horizontally to the top of the fully charged battery of the battery delivery vehicle 5, grabs the fully charged battery, passes through the upper part of the working position of the mobile battery exchange station, and then moves horizontally and lowers it to the battery space of the vehicle to be replaced; S5: Relocation of depleted batteries: The battery exchange equipment 3 moves horizontally to the upper part of the transfer warehouse 6 of the battery delivery vehicle 5, grabs the depleted batteries and transfers them to the empty storage position 7 of the battery delivery vehicle 5; S6: Repeat steps S2-S5 to continue battery replacement operations for other vehicles to be replaced.

[0028] Embodiment 1 mainly uses the battery delivery vehicle 5 as a battery storage device, which can not only replenish power for the mobile battery swap station 1, but also swap power for the vehicle body to be swapped, and provide a storage space 7 for the mobile battery swap station (vehicle) that has no storage space 7 or the storage space 7 is faulty and cannot be used, thereby making it possible for such battery swap equipment 3 to operate.

[0029] Embodiment 2 Different from the first embodiment, when the mobile battery swap station 1 has a storage space 7, the battery delivery vehicle 5 can not only replenish the power of the mobile battery swap station 1, but also replace the power of the vehicle body to be replaced; the main steps include: Step S0 is the same as S4. S5: The battery swapping device 3 moves horizontally to above the fully charged battery of the battery delivery vehicle 5, grabs the fully charged battery and transfers it to the turnover warehouse 4 of the mobile battery swapping station 1; S6: The battery swapping device 3 moves horizontally to the top of the low-power battery of the mobile battery swapping station 1, grabs the low-power battery and transfers it to the transfer warehouse 6 of the battery delivery vehicle 5; Repeat S5-S6 until all the depleted batteries in the mobile battery swap station 1 are transferred to the battery delivery vehicle 5, or all the fully charged batteries on the battery delivery vehicle 5 are transferred to the mobile battery swap station 1; S7: Relocation of depleted batteries: The battery exchange equipment 3 moves horizontally to the upper part of the transfer warehouse 6 of the battery delivery vehicle 5, grabs the depleted batteries and transfers them to the empty storage position 7 of the battery delivery vehicle 5; S6: Repeat steps S2-S4 to continue battery replacement operations for other vehicles to be replaced.

[0030] Embodiment 3 like Figure 5As shown, unlike the first and second embodiments, the battery delivery vehicle 5 in this embodiment adopts a pure power distribution mode, and completes the power replenishment by exchanging low-power batteries and fully-charged batteries with the mobile battery swap station (vehicle). It is suitable for mobile battery swap stations (vehicles) with fully low-power batteries and mobile battery swap stations (vehicles) with partially low-power batteries. The battery delivery vehicle 5 replenishes the mobile battery swap station (vehicle) and can leave after the power replenishment is completed. It does not need to participate in the battery swap process and can leave after the power replenishment is completed, which is more flexible.

[0031] The main steps include: S10: Initial state setting: the mobile battery swap station waits for the battery delivery vehicle 5 to arrive; S11: Positioning of the battery delivery vehicle 5: Under the guidance of the positioning device, the battery delivery vehicle 5 stops at one side of the mobile battery swap station; S12: Transfer the fully charged battery to the delivery vehicle 5: The battery swapping device 3 grabs the fully charged battery, passes over the working position of the mobile battery swapping station, and then moves horizontally and lowers it to the turnover warehouse 4 of the mobile battery swapping station; S13: Transferring the exhausted battery on the mobile battery swap station: the battery swap device 3 moves horizontally to the top of the selected exhausted battery, grabs the exhausted battery, passes through the working position of the mobile battery swap station, and then moves the exhausted battery horizontally and places it in the empty space of the battery delivery vehicle 5; S14: Transferring the fully charged battery on the battery delivery vehicle 5 again: the battery swapping device 3 grabs the next fully charged battery on the battery delivery vehicle 5, passes over the working position of the mobile battery swapping station, and lowers the fully charged battery to the working position of the mobile battery swapping station; S15: Transferring the exhausted battery on the battery swap station again: the battery swap device 3 moves horizontally to the top of the next exhausted battery selected, grabs the exhausted battery, passes above the working position of the mobile battery swap station, and moves the exhausted battery horizontally and lowers it to the empty space on the delivery vehicle 5; S16: Transfer and exchange other batteries: Repeat steps S12-S15 until all fully charged batteries on the battery delivery vehicle 5 are transferred to the storage location 7 of the mobile battery swap station, or all depleted batteries in the storage location 7 of the mobile battery swap station are transferred to the battery delivery vehicle 5.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A battery replacement method for a battery delivery vehicle, characterized in that: The following steps are involved: Step S1, the battery swapping equipment of the mobile battery swapping station takes out the depleted battery on the vehicle body to be swapped, and loads it into the turnover bin of the mobile battery swapping station or the transfer bin of the battery delivery vehicle, wherein the battery swapping equipment includes a telescopic arm and a battery pack grabbing device arranged at one end of the telescopic arm; Step S2: The battery swapping equipment of the mobile battery swapping station takes out the fully charged battery from the mobile battery swapping station or the battery delivery vehicle, and installs it into the vehicle body to be swapped; Repeat steps S1-S2 until the battery replacement of the vehicle body to be replaced is completed; Step S3: The battery swapping equipment of the mobile battery swapping station takes out the depleted batteries of the mobile battery swapping station and loads them onto the battery delivery vehicle, and loads the fully charged batteries on the battery delivery vehicle onto the mobile battery swapping station; Repeat step S3 until all fully charged batteries of the battery delivery vehicle are transferred to the mobile battery swap station.

2. A battery replacement method for a battery delivery vehicle according to claim 1, characterized in that: In step S1, it includes: S11. The vehicle to be replaced stops at one side of the mobile replacement station according to the guidance of the positioning device, and the replacement equipment moves to the working position of the mobile replacement station; S12, the telescopic arm of the battery swapping equipment moves and extends toward the side of the vehicle body to be swapped, and the battery pack grabbing device moves along the length direction of the telescopic arm to above the depleted battery of the vehicle body to be swapped; S13, the battery pack grabbing device descends to grab the low-power battery on the vehicle body to be replaced and then rises; S14. The telescopic arm of the battery swapping equipment drives the battery pack grabbing device to move in the opposite direction of the side of the vehicle body to be swapped, and moves the low-power battery to the top of the mobile battery swapping station or the battery delivery vehicle; S15. The battery swapping equipment is moved to the turnover warehouse of the mobile battery swapping station or the corresponding transfer warehouse of the battery delivery vehicle. The battery pack grabbing device descends to place the depleted battery on the turnover warehouse or transfer warehouse.

3. A battery replacement method for a battery delivery vehicle according to claim 1, characterized in that: In step S2, it includes: S21. The battery swapping equipment is moved to a mobile battery swapping station or to a fully charged battery corresponding to a battery delivery vehicle; S22, the telescopic arm of the battery swapping equipment moves toward the side of the mobile battery swapping station or the battery delivery vehicle, and the battery pack grabbing device moves along the length direction of the telescopic arm to above the fully charged battery of the mobile battery swapping station or the battery delivery vehicle; S23, the battery pack grabbing device descends and grabs the fully charged battery on the mobile battery swap station or battery delivery vehicle and then rises; S24, the telescopic arm of the battery swapping equipment moves horizontally toward the side of the vehicle body to be swapped, and the battery pack grabbing device moves toward the side of the vehicle body to be swapped along the length direction of the telescopic arm, bringing the fully charged battery to the top of the vehicle body to be swapped; S25. The battery pack grabbing device descends and installs the fully charged battery on the vehicle body to be replaced.

4. A battery replacement method for a battery delivery vehicle according to claim 1, characterized in that: In step S3, it includes: S31, the battery swapping equipment moves to the location of the low-power battery on the mobile battery swapping station; S32, the telescopic arm of the battery swapping equipment moves and extends toward the side of the battery delivery vehicle, and the battery pack grabbing device moves along the length direction of the telescopic arm to above the exhausted battery of the mobile battery swapping station; S33, the battery pack grabbing device descends to grab the low-power battery on the mobile battery swap station and then rises; S34, the battery pack grabbing device moves along the length direction of the telescopic arm toward one side of the battery delivery vehicle, driving the low-power battery to move to the top of the battery delivery vehicle; S35, the battery pack grabbing device descends to place the low-power battery on the battery delivery vehicle; S36. The battery replacement equipment is moved to the fully charged battery of the corresponding battery delivery vehicle; S37, the battery pack grabbing device descends to grab the fully charged battery of the battery delivery vehicle and then rises; S38, the battery pack grabbing device moves along the length direction of the telescopic arm toward one side of the mobile battery swap station, driving the fully charged battery to move to the top of the mobile battery swap station; S39, the battery pack grabbing device descends to place the fully charged battery on the mobile battery swap station; Repeat S31-S39 until all fully charged batteries of the battery delivery vehicle are transferred to the mobile battery swap station.

5. A battery replacement system according to any one of claims 1 to 4, characterized in that: include: Battery delivery vehicles, used to transport battery packs; The vehicle body to be replaced is detachably equipped with a battery for providing power; The mobile battery swap station is equipped with battery swap equipment, which is used to remove the depleted batteries on the vehicle body to be replaced and load them onto the mobile battery swap station or battery delivery vehicle, and then remove the fully charged batteries from the mobile battery swap station or battery delivery vehicle and load them onto the vehicle body to be replaced. It can also remove the depleted batteries from the mobile battery swap station and load them onto the battery delivery vehicle, and remove the fully charged batteries from the battery delivery vehicle and load them onto the mobile battery swap station.

6. A battery replacement system according to claim 5, characterized in that: The mobile battery swap station is equipped with a turnover warehouse for temporarily storing low-power batteries and a work station for the battery swap equipment to perform battery swap operations, and tracks for the battery swap equipment to slide are provided on both sides.

7. A battery replacement system according to claim 6, characterized in that: The mobile battery swap station is equipped with a positioning device, which is used to transmit a positioning signal to guide the vehicle to be swapped and the battery delivery vehicle to move to the set position.

8. A battery replacement system according to claim 6, characterized in that it includes a control device, the control device has multiple control keys, and each control key controls the battery replacement equipment to perform a corresponding battery replacement action.

9. A battery replacement system according to claim 6, characterized in that: The battery swapping device includes a main frame, a telescopic arm slidably mounted on the top of the main frame, and a battery pack grabbing device connected to one end of the telescopic arm; The main frame is set on the mobile battery swap station. The bottom is connected by a pulley and can move longitudinally along the travel direction of the battery swap vehicle on the track in the mobile battery swap station. A telescopic arm is horizontally arranged on the top of the main frame, the telescopic arm can move up and down relative to the main frame and has end arms that can extend to both sides of the mobile battery swap station; The battery pack grabbing device is connected to the end wall of the telescopic arm through a flexible suspension rope.

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