Battery pack and mobile charging system

Abstract

The utility model relates to the technical field of mobile charging, and discloses a battery pack and a mobile charging system.The battery pack comprises a battery main body part and a first driving assembly, and the first driving assembly is installed on the side wall or the bottom of the battery main body part and used for driving the battery main body part to move in the vertical direction; the battery main body part is in contact with the ground or is separated from the ground; wherein N first driving assemblies are arranged on one side of the battery main body part, and N first driving assemblies are symmetrically arranged on the other side of the battery main body part. The battery main body part of the battery pack ascends to be separated from the ground and is convenient to carry, and the battery main body part descends to be in contact with the ground, so that the stability during use is ensured.

Description

Technical Field

[0001] This application relates to the field of mobile charging technology, and more particularly to a battery pack and a mobile charging system. Background Technology

[0002] There are various ways to charge devices, depending on the type of device and its environment. Electric vehicles can be moved to charging stations, but public charging stations often experience congestion and long queues. Furthermore, with the increasing number of electric vehicles, the cost of expanding and upgrading public charging stations is high; moreover, the concentrated use of public charging stations during peak charging periods puts a significant strain on the power grid. In comparison, moving charging equipment to the location of electric vehicles is a better option. This model can meet the charging needs of electric vehicle owners while taking advantage of peak-valley arbitrage, and it can also mitigate the impact of fast and supercharging on the power distribution network by using mobile charging and storage integrated batteries.

[0003] In the process of deploying mobile charging, how to deploy flexibly is an issue that cannot be ignored. How to improve the flexibility of mobile charging is a technical problem that urgently needs to be solved in mobile charging technology. Utility Model Content

[0004] This application provides a battery pack and a mobile charging system that improves the flexibility of mobile charging.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, embodiments of this application provide a battery pack, including a battery body and a first driving assembly; the first driving assembly is mounted on the side wall or bottom of the battery body and is used to drive the battery body to move in the vertical direction so that the battery body is in contact with or separated from the ground; wherein, N first driving assemblies are provided on one side of the battery body and N first driving assemblies are symmetrically provided on the other side of the battery body.

[0007] The battery pack proposed in this application embodiment has a first driving component provided on the side wall or bottom of the battery body, so that the battery pack has an independent driving component, which improves the flexibility of the battery pack. The first driving component is used to drive the battery body to move in the vertical direction, thereby ensuring that the height of the battery body is adjustable. When the battery body rises to a distance from the ground, it is convenient to transport. When the battery body descends to contact the ground, it helps to ensure stability during use.

[0008] Optionally, the first drive assembly includes: a first drive motor; and a first lead screw extending in a vertical direction, the first lead screw being connected to the drive end of the first drive motor.

[0009] The first mating nut is sleeved on the first lead screw and is threaded with the first lead screw.

[0010] The telescopic leg extends vertically and is fixedly connected to the first mating nut.

[0011] In the above scheme, by adjusting the speed and direction of the first drive motor, the lifting speed and direction of the telescopic leg can be easily controlled, thereby driving the battery body to move up and down, which facilitates the loading and movement of the battery pack.

[0012] Optionally, the first drive assembly further includes a ball joint pin and a base that are movably connected. The ball joint pin includes a pin rod and a ball head fixed to the bottom end of the pin rod. The top of the base is provided with a ball groove, and the ball head is located in the ball groove. The opening of the ball groove is smaller than the outer diameter of the ball head. The tilt direction of the pin rod relative to the base is adjustable. The pin rod is fixed to the lower end of the telescopic leg.

[0013] In the above solution, the ball joint pin and base allow the battery pack to adapt well to uneven ground, ensuring that the telescopic legs can stand vertically even on sloping ground, thus improving the stability of the battery pack when parked on sloping ground. The pin is fixed to the lower end of the telescopic legs, allowing the telescopic legs to form a rotatable connection with the base, increasing the degree of freedom between the base and the telescopic legs, facilitating the fixing of the base on different terrains, and thus improving the stability of the battery pack.

[0014] Optionally, the first drive assembly is mounted on the side wall of the battery body; the battery pack also includes a second drive assembly, the side wall of the battery body has a receiving groove, the second drive assembly is mounted on the bottom of the battery body, and the second drive assembly is connected to the first drive assembly to drive the first drive assembly to extend out or be received into the receiving groove.

[0015] In the above scheme, the driving action of the second driving component enables the first driving component to extend out of the receiving slot when needed, and to be retracted into the receiving slot when not needed, so as to reduce the volume of the battery pack and reduce the space occupied by the battery pack.

[0016] Optionally, the first drive components symmetrically arranged on both sides of the battery body are configured in the same second drive component;

[0017] The first drive assembly further includes: a first lead screw housing, wherein the first lead screw is fixedly disposed within the first lead screw housing;

[0018] The second drive component includes:

[0019] The second drive motor is fixed to the bottom of the battery body.

[0020] The second lead screw is fixed at the bottom of the battery body and extends along the side wall perpendicular to the battery body. The second lead screw is connected to the drive end of the second drive motor. The two ends of the second lead screw in the length direction are constructed as a first threaded segment and a second threaded segment. The thread direction of the first threaded segment and the thread direction of the second threaded segment are opposite.

[0021] Two second mating nuts are threaded into the first threaded segment and the second threaded segment respectively. The two second mating nuts are rotated and limited to allow them to move closer to or further away from each other.

[0022] Two telescopic components extend in the same direction as the second lead screw. One end of the telescopic component is fixedly connected to the corresponding second mating nut, and the other end is fixedly connected to the first lead screw housing of the corresponding first drive assembly.

[0023] In the above scheme, by controlling the opposite rotation direction of the second lead screw, the two first telescopic components can move towards each other or away from each other in the left-right direction, thereby changing the position of the first drive assembly in the left-right direction. This allows the first drive assembly to extend or retract into the receiving groove in the left-right direction. Because the threaded engagement between the second lead screw and the telescopic components has high precision, accurate translation of the second lead screw can be achieved. Furthermore, the threaded engagement has self-locking properties, which can reduce vibration and impact to a certain extent and improve the movement stability of the telescopic components.

[0024] Secondly, embodiments of this application provide a mobile charging system, including a battery pack and a vehicle body according to any of the above embodiments; the vehicle body includes a front end and a load-bearing portion, the load-bearing portion being adapted to drive into and out of the gap between the battery body and the ground, for loading and unloading the battery pack.

[0025] The mobile charging system proposed in this application allows the carrier to directly enter or leave the space below the battery body when the battery body is separated from the ground, thereby enabling the loading and unloading of the battery pack. This improves the loading and unloading efficiency of the battery pack and enhances its flexibility, facilitating flexible deployment and expanding the application range of mobile charging for the battery pack.

[0026] Optionally, it also includes an alignment auxiliary mechanism, which includes a positioning component and an adapter. The adapter includes a fixed frame and a positioning roller. The two ends of the positioning roller are mounted on the fixed frame. The axial position of the positioning roller is fixed. The positioning roller is adapted to rotate in the circumferential direction.

[0027] The positioning component includes a positioning block, the top of which is provided with a V-groove, and the positioning roller is adapted to slide into the bottom of the V-groove along the side wall of the V-groove, so that the axial direction of the positioning roller is parallel to the extension direction of the bottom edge of the V-groove.

[0028] One of the positioning components and adapters is fixed to the top of the bearing part, and the other is fixed to the bottom of the battery body part.

[0029] In the above solution, during the movement of the battery pack carried by the vehicle body, the V-groove has a limiting effect on the positioning rollers, which can effectively reduce the risk of the battery pack slipping off the support and ensure the safety and stability of the battery pack.

[0030] Optionally, the positioning block has mounting grooves on the two side walls perpendicular to the bottom edge of the V-groove;

[0031] The positioning components also include a fixing box, two springs, and two connecting rods;

[0032] The positioning block is located inside the fixing box, the V-shaped groove protrudes from the top of the fixing box, and the inner wall of the fixing box has a through hole; one end of the connecting rod rests against the bottom of the mounting groove, and the other end protrudes through the through hole;

[0033] The spring is sleeved on the connecting rod, with one end of the spring abutting against the bottom of the mounting groove and the other end abutting against the inner wall of the fixing box;

[0034] The positioning component also includes a shock-absorbing block located inside the fixing box, with the shock-absorbing block positioned between the bottom of the positioning block and the fixing box.

[0035] In the above solution, when the battery body is placed on the support, the positioning block tends to press down under the weight. The two springs help to keep the positioning block in the center position in the fixing box and prevent the positioning block from rubbing against the inner wall of the fixing box when it is pressed down. In addition, the springs can also absorb and buffer the vibration caused by uneven ground or impact of the battery body, ensuring that the positioning roller can stay stably in the V-groove, reducing the amplitude of shaking or displacement of the battery body. The shock-absorbing block can absorb the impact and vibration generated during the positioning process and the transportation of the battery pack by the vehicle, and can play a role in protecting the fittings and positioning parts and preventing them from being damaged by direct collision or friction.

[0036] Optionally, the mobile charging system includes multiple alignment auxiliary mechanisms, which include multiple first alignment auxiliary mechanisms and multiple second alignment auxiliary mechanisms arranged in mutually perpendicular directions.

[0037] The top surface of the bearing portion includes two first sides parallel to the first direction and two second sides parallel to the second direction, wherein the first direction is perpendicular to the second direction;

[0038] The top surface of the load-bearing part includes a central area and an outer area;

[0039] The bottom edge of the V-groove of the first alignment auxiliary mechanism extends parallel to the first direction, and the bottom edge of the V-groove of the second alignment auxiliary mechanism extends parallel to the second direction.

[0040] Multiple first alignment auxiliary mechanisms are located in the peripheral area near the first side and are arranged at intervals along the first side;

[0041] Multiple second alignment aids are located in the peripheral area near the second side and are arranged at intervals along the second side.

[0042] In the above scheme, the bottom edge of the V-groove of the first alignment auxiliary mechanism extends parallel to the first direction, and the bottom edge of the V-groove of the second alignment auxiliary mechanism extends parallel to the second direction, so that the battery body can be accurately aligned in both the first and second directions that are perpendicular to each other when it is placed, ensuring that the entire battery body is accurately placed on the support.

[0043] Optionally, the vehicle body also includes a limiting member, which includes:

[0044] The elastic rod has its top protruding from the outer side of the side wall facing the load-bearing part of the vehicle front, and is suitable for elastically retracting when pressed by the side wall of the battery body.

[0045] Mounting bracket, the mounting bracket is fixed on the inner side of the side wall of the front of the vehicle facing the load-bearing part, and the end of the elastic rod is movably set on the mounting bracket;

[0046] The trigger element is fixed on the elastic rod;

[0047] The limit sensor is fixed on the mounting bracket. When the triggering element retracts elastically with the elastic rod, it passes through the limit sensor and triggers the limit sensor.

[0048] In the above solution, when the elastic rod is pressed by the battery body and retracts elastically, the trigger will move and pass through the limit sensor, thereby triggering the limit sensor. The limit sensor can send a stop signal to the vehicle body to avoid a strong collision with the battery body. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the battery pack structure in some embodiments of this application;

[0051] Figure 2 This is a cross-sectional view of the first and second driving components in some embodiments of this application;

[0052] Figure 3 This is a cross-sectional view of the base structure in some other embodiments of this application;

[0053] Figure 4 This is a schematic diagram of the structure of the first driving component and the second driving component in some embodiments of this application;

[0054] Figure 5 This is a schematic diagram of the structure of a mobile charging system in some embodiments of this application;

[0055] Figure 6 This is a schematic diagram of another state of the mobile charging system in some embodiments of this application;

[0056] Figure 7 This is a schematic diagram of the alignment auxiliary mechanism in some embodiments of this application;

[0057] Figure 8 For the purposes of this application Figure 7 Schematic diagram of the cross-sectional structure in the CC direction;

[0058] Figure 9 This is a schematic diagram of the vehicle body structure in some embodiments of this application;

[0059] Figure 10 This is an enlarged structural schematic diagram of the alignment auxiliary mechanism in some embodiments of this application;

[0060] Figure 11 This is a structural schematic diagram of another state of the mobile charging system in some embodiments of this application;

[0061] Figure 12 The following are schematic diagrams of the limiting member in some embodiments of this application;

[0062] Figure 13 This is a structural schematic diagram of another state of the limiting member in some embodiments of this application;

[0063] Figure 14 This is a schematic diagram of the limiting member in some other embodiments of this application;

[0064] Figure 15 This is a structural schematic diagram of another state of the limiting member in some other embodiments of this application.

[0065] [Explanation of Labels in the Attached Image]

[0066] 1: Vehicle body; 10: Load-bearing section; 11: First side; 12: Second side; 13: Middle area; 14: Outer area;

[0067] 2: Battery pack; 20: Battery body; 201: Receiving slot;

[0068] 21: First drive assembly; 210: First drive motor; 211: First lead screw; 211a: First lead screw housing; 212: Telescopic leg; 212a: First mating nut; 213: Ball head pin; 213a: Pin rod; 213b: Ball head; 214: Base support; 215: Ball groove;

[0069] 22: Second drive assembly; 220: Second drive motor; 221: Second lead screw; 221a: First threaded section; 221b: Second threaded section; 222: Telescopic component; 223: Second mating nut;

[0070] 3: Alignment auxiliary mechanism; 3a: First alignment auxiliary mechanism; 3b: Second alignment auxiliary mechanism;

[0071] 36: Adapter; 361: Mounting bracket; 362: Positioning rollers;

[0072] 37: Positioning component; 37a: Positioning block; 37b: V-groove; 38: Fixing box; 38b: Through hole; 380: Spring; 381: Mounting groove; 382: Connecting rod; 39: Shock absorber;

[0073] XX': Left / right direction; YY': Front / back direction; AA': First direction; BB': Second direction;

[0074] 4: Navigation laser detector;

[0075] 5: Limiting element; 51: Elastic rod; 510: Limiting spring; 52: Mounting bracket; 53: Sleeve hole; 54: Trigger element; 50: Limit sensor; 501: Micro switch; 502: Optocoupler;

[0076] 6: The front of the car;

[0077] 8: Obstacle avoidance laser detector;

[0078] 9: Charging station; 91: Charging gun;

[0079] 23: Support pad. Detailed Implementation

[0080] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0081] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0082] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0083] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0084] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0085] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0086] A charging vehicle is a mobile charging device that can be dispatched to locations where charging services are needed.

[0087] A charging vehicle with an integrated design of vehicle body and battery pack. After the charging vehicle moves to the location of the device to be charged, the battery pack is inseparable from the vehicle body. When the battery pack is used to charge the device, the vehicle body is idle and waiting. It can only carry the battery pack to the next charging location after the charging is completed, which seriously occupies resources, makes it difficult to deploy flexibly, and causes resource waste.

[0088] In view of this, in order to improve the flexibility of mobile charging and optimize resource utilization, this application provides a battery pack 2, please refer to... Figure 1 It includes a first drive assembly 21 and a battery body 20.

[0089] The first drive assembly 21 is mounted on the side wall or bottom of the battery body 20 and is used to drive the battery body 20 to move in the vertical direction so that the battery body 20 contacts or is separated from the ground.

[0090] Understandably, the first drive assembly 21 can drive the battery body 20 to move, so that the battery body 20 has an independent drive assembly, which provides support for the vertical movement of the battery body 20, ensuring that the battery body 20 can flexibly adjust its position, rising to a distance from the ground for easy handling, and descending to contact the ground to ensure stability during use.

[0091] Among them, N first drive components 21 are arranged on one side of the battery body 20, and N first drive components 21 are symmetrically arranged on the other side of the battery body 20.

[0092] It is understandable that the same number of first drive components 21 are symmetrically arranged on both sides of the battery body 20, which can distribute the load more evenly. The coordinated work of multiple first drive components 21 can better control the vibration during movement, reduce the occurrence of tilting or instability caused by excessive weight on one side, and help improve the stability of the battery body 20.

[0093] Furthermore, the simultaneous operation of multiple first drive components 21 can generate greater driving force, which helps to improve the lifting efficiency of the battery body 20.

[0094] In other embodiments, the output power or speed of the plurality of first drive components 21 can be controlled separately to achieve more precise power distribution and control.

[0095] In this embodiment, please refer to Figure 2 The first drive assembly 21 includes a first drive motor 210, a first lead screw 211, and a telescopic leg 212.

[0096] The first lead screw 211 extends vertically and is connected to the drive end of the first drive motor 210. It can be understood that the first drive motor 210 can drive the first lead screw 211 to rotate. By adjusting the direction and speed of the first drive motor 210, the rotation direction and speed of the first lead screw 211 can be easily controlled.

[0097] The first drive assembly 21 also includes a first mating nut 212a, which is sleeved on and threadedly engaged with the first lead screw 211. The telescopic leg 212 is fixedly connected to the first mating nut 212a. The first mating nut 212a is rotated and limited, and the rotational motion of the first lead screw 211 can be converted into the linear motion of the first mating nut 212a, thereby driving the telescopic leg 212 to perform lifting and lowering motion.

[0098] The telescopic leg 212 extends vertically. Since the threaded engagement between the first lead screw 211 and the first mating nut 212a has high precision, the telescopic leg 212 can be accurately translated in the vertical direction. In addition, since the threaded engagement has self-locking properties, it can reduce vibration and impact to a certain extent and improve the stability of the system.

[0099] In addition, the first lead screw 211 and the telescopic leg 212 extend in the vertical direction, with a compact and stable structure that can withstand large axial forces.

[0100] It is understandable that by adjusting the speed and direction of the first drive motor 210, the lifting speed and direction of the telescopic leg 212 can be easily controlled, thereby driving the battery body 20 to move up and down, which facilitates the loading and movement of the battery pack 2.

[0101] In this embodiment, the first drive assembly 21 further includes: a first lead screw housing 211a, wherein the first lead screw 211 is fixedly disposed within the first lead screw housing 211a.

[0102] In this embodiment, please refer to Figure 3 The first drive assembly 21 also includes a ball head pin 213 and a base 214. The ball head pin includes a pin 213a and a ball head 213b fixed to the bottom end of the pin 213a. The top of the base 214 is provided with a ball groove 215, and the ball head 213b is located in the ball groove 215. The opening of the ball groove 215 is smaller than the outer diameter of the ball head 213b. The tilt direction of the pin 213a relative to the base 214 is adjustable.

[0103] The ball joint pin 213 and the base 214 enable the battery pack 2 to adapt well to uneven ground, ensuring that the telescopic leg 212 can stand upright even on sloping ground, thus improving the stability of the battery pack 2 when parked on sloping ground.

[0104] Understandably, the pin 213a is fixed to the lower end of the telescopic leg 212, so that the telescopic leg 212 can form a rotatable connection with the base 214, which increases the degree of freedom between the base 214 and the telescopic leg 212, and facilitates the fixation of the base 214 on different terrains, thereby improving the stability of the battery pack 2.

[0105] In addition, the ball joint 213 can reduce vibration and impact caused by uneven ground, thereby protecting the telescopic leg 212 and the base 214 from damage.

[0106] Please refer to Figure 3 The top of the base 214 has a ball groove 215, and the ball pin 213 is rotatably set in the ball groove 215, so that the pin 213a can have a variety of different tilt directions relative to the base 214; from the side where the base 214 is connected to the telescopic leg 212 to the side where the base 214 contacts the ground, the cross-sectional area of ​​the base 214 can gradually increase, for example, the base 214 can be constructed as a frustum structure.

[0107] In this embodiment, the first drive assembly 21 is mounted on the side wall of the battery body 20. Compared to mounting the first drive assembly 21 on the bottom of the battery body 20, mounting the first drive assembly 21 on the side wall of the battery body 20 helps to increase the distance between the two first drive assemblies 21, thereby increasing the width of the space below the battery body 20 after it is raised, which facilitates the entry of the transport vehicle 1 or other transport device into the space below the battery body 20.

[0108] In this embodiment, please refer to Figure 1 and Figure 2 The battery pack 2 also includes a second drive assembly 22. It is understood that the second drive assembly 22 can drive the first drive assembly 21 to extend from or retract to the side wall of the battery body 20.

[0109] Please refer to Figure 1 The battery body 20 has a receiving groove 201 on its side wall. A second drive assembly 22 is disposed at the bottom of the battery body 20 and is connected to a first drive assembly 21 to drive the first drive assembly 21 to extend out of or be received into the receiving groove 201. The driving function of the second drive assembly 22 is, on the one hand, to enable the first drive assembly 21 to extend out of the receiving groove 201 in the left-right direction XX' when needed, thereby increasing the width of the space below the battery body 20 after it is raised; on the other hand, when not needed (e.g., during the charging process of the battery pack 2 for a new energy vehicle), it is received into the receiving groove 201 in the left-right direction XX', thereby reducing the volume of the battery pack 2 and reducing the space occupied by the battery pack 2.

[0110] In this embodiment, as Figure 1 and Figure 2As shown, the first drive components 21 symmetrically arranged on both sides of the battery body 20 are configured on the same second drive component 22. It can be understood that, along the left-right direction XX', the first drive components 21 are arranged on both sides of the battery body 20. The first drive components 21 can drive the battery body 20 on the left and right sides of the battery body 20 so that the battery body 20 can move up and down.

[0111] The second drive assembly 22 is connected to the first drive assemblies 21 on both sides to drive the first drive assemblies 21 on both sides to move in the left-right direction XX', so that the first drive assemblies 21 on both sides can extend or retract into the corresponding receiving groove 201 in the left-right direction XX'.

[0112] Please refer to body 1. Figure 2 and Figure 4 The second drive assembly 22 includes a second drive motor 220, a second lead screw 221, and a telescopic component 222.

[0113] The second drive motor 220 is fixed to the bottom of the battery body 20, and the second lead screw 221 is fixed to the bottom of the battery body 20 and extends along the side wall perpendicular to the battery body 20. The second lead screw 221 is connected to the drive end of the second drive motor 220, and the second drive motor 220 can drive the second lead screw 221 to rotate.

[0114] The second lead screw 221 is constructed with a first threaded section 221a and a second threaded section 221b at both ends in the length direction. The thread direction of the first threaded section 221a is opposite to that of the second threaded section 221b.

[0115] The second drive assembly 22 includes two second mating nuts 223, which are threadedly engaged with the first threaded section 221a and the second threaded section 221b, respectively. The two second mating nuts 223 are rotated and limited to allow them to move closer to or further away from each other.

[0116] The second drive assembly 22 includes two telescopic members 222, which extend in the same direction as the second lead screw 221. One end of the telescopic member 222 is fixedly connected to the corresponding second mating nut, and the other end is fixedly connected to the first lead screw housing 221a of the corresponding first drive assembly 21. In this way, the rotational motion of the second lead screw 221 can be converted into linear motion of the two telescopic members 222 in the left-right direction XX', thereby driving the first drive assemblies 21 on both sides to extend or retract into the corresponding receiving grooves 201 in the left-right direction XX'.

[0117] When the second lead screw 221 rotates, the two telescopic members 222 move in opposite directions along the left-right direction XX' because the first threaded section 221a and the second threaded section 221b have opposite helical directions. Thus, by controlling the opposite rotation direction of the second lead screw 221, the two first telescopic members 22 can move towards each other or away from each other along the left-right direction XX', thereby changing the position of the first drive assembly 21 in the left-right direction XX', so that the first drive assembly 21 can extend or retract into the receiving groove 201 along the left-right direction XX'.

[0118] Because the threaded engagement between the second lead screw 221 and the telescopic member 222 has high precision, accurate translation of the second lead screw 221 can be achieved. Furthermore, the threaded engagement has self-locking properties, which can reduce vibration and impact to a certain extent, thus improving the movement stability of the telescopic member 222.

[0119] This application also provides a mobile charging system; please refer to [reference needed]. Figure 5 The vehicle includes the battery pack 2 and the vehicle body 1 described in the above embodiments. The vehicle body 1 includes a front end 6 and a load-bearing part 10. The load-bearing part 10 is adapted to drive into and out of the gap between the battery body 20 and the ground for loading and unloading the battery pack 2.

[0120] It is understandable that when the battery body 20 is separated from the ground, the carrier 10 can directly drive into or out of the space below the battery body 20, thereby realizing the loading and unloading of the battery pack 2. On the one hand, it improves the loading and unloading efficiency of the battery pack 2, and on the other hand, it facilitates the flexible deployment of the battery pack 2, thereby further improving the application range of the battery pack 2 for mobile charging.

[0121] In this embodiment, vehicle body 1 conforms to the L4 level autonomous driving standard, and vehicle body 1 is more expensive than battery pack 2. If the battery pack and vehicle body are designed as an integral unit, each battery pack is equipped with its own vehicle body. After the vehicle body transports the battery pack to the charging device, the vehicle body remains idle while the battery pack is charging the device, resulting in resource waste. In this embodiment, battery pack 2 and vehicle body 1 are designed to be separable. One vehicle body 1 is used to transport multiple battery packs 2, and the number of vehicle bodies 1 can be less than the number of battery packs 2. After unloading the current battery pack 2, vehicle body 1 can transport other battery packs 2, reducing the time each battery pack 2 occupies the vehicle body 1, improving the utilization rate of vehicle body 1, realizing flexible deployment of vehicle body 1, reducing the waste of vehicle body 1 resources, and thus serving more new energy vehicle owners.

[0122] In this embodiment, please refer to Figure 6 , Figure 7 and Figure 8 The mobile charging system also includes an alignment auxiliary mechanism 3, which can be understood to play an assisting role in alignment.

[0123] The alignment assist mechanism 3 is adapted to adjust the front-to-back and / or left-to-right position of the vehicle body 1 relative to the battery body 20 when the battery pack 2 is loaded in the space below the battery body 20. This ensures that the support part 10 evenly supports the entire battery pack 2 and reduces the risk of the battery pack 2 slipping off the support part 10.

[0124] The alignment auxiliary mechanism includes a positioning component 37 and an adapter 36. The adapter 36 includes a fixed frame 361 and a positioning roller 362. The two ends of the positioning roller 362 are mounted on the fixed frame 361. The axial position of the positioning roller 362 is fixed, and the positioning roller 362 is suitable for circumferential rotation.

[0125] The positioning element 37 includes a positioning block 37a, the top of which is provided with a V-groove 37b. The positioning roller 362 is adapted to slide into the bottom of the V-groove 37b along the side wall of the V-groove 37b, so that the axial direction of the positioning roller 362 is parallel to the extension direction of the bottom edge of the V-groove 37b.

[0126] One of the positioning component 37 and the adapter 36 is fixed to the top of the support part 10 and the other is fixed to the bottom of the battery body part 20, which helps to position the support part 10 and the battery body part 20.

[0127] During the movement of the battery pack 2 carried by the vehicle body 1, the V-groove 37b has a limiting effect on the positioning roller 362, which can effectively reduce the risk of the battery pack 2 slipping off the support part 10 and ensure the safety and stability of the battery pack 2.

[0128] In this embodiment, please refer to the reference. Figure 7 and Figure 8 The positioning block 37a has mounting grooves 381 on its two side walls perpendicular to the bottom edge of the V-groove 37b.

[0129] The positioning component 37 also includes a fixing box 38, two springs 380, and two connecting rods 382. The positioning block 37a is located inside the fixing box 38, the V-shaped groove 37b protrudes from the top of the fixing box 38, and the inner wall of the fixing box 38 has a through hole 38b; one end of the connecting rod 382 abuts against the bottom of the mounting groove 381, and the other end protrudes through the through hole 38b.

[0130] Understandably, one end of the connecting rod 382 rests against the bottom of the mounting groove 381, while the other end protrudes through the through hole 38b of the fixing box 38. This not only limits the movement range of the positioning block 37a but also enhances the overall stability of the positioning component 37.

[0131] Spring 380 is sleeved on connecting rod 382. One end of spring 380 abuts against the bottom of mounting groove 381, and the other end abuts against the inner wall of fixing box 38. It can be understood that when the battery body 20 is placed on the support part 10, the positioning block 37a tends to press down under the weight. The two springs 380 help to keep the positioning block 37a in the center position in fixing box 38 and prevent the positioning block 37a from rubbing against the inner wall of fixing box 38 when it is pressed down. In addition, spring 380 can also absorb and buffer the vibration caused by uneven ground or impact of battery body 20, ensuring that positioning roller 362 can stay stably in V-groove 37b and reduce the amplitude of shaking or displacement of battery body 20.

[0132] In this embodiment, please refer to Figure 8 The positioning component 37 also includes a shock-absorbing block 39 located inside the fixing box 38, with the shock-absorbing block 39 positioned between the bottom of the positioning block 37a and the fixing box 38.

[0133] Understandably, the shock absorber 39 can absorb the impact and vibration generated during the positioning process and during the transport of the battery pack 2 by the vehicle body 1, thus protecting the adapter 36 (see reference). Figure 6 ) and positioning element 37 (reference) Figure 6 The purpose of this is to prevent them from being damaged by direct collision or friction.

[0134] As an example, the shock absorber 39 is made of rubber.

[0135] In this embodiment, please refer to Figure 6 and Figure 9 The mobile charging system includes multiple alignment auxiliary mechanisms 3, which include multiple first alignment auxiliary mechanisms 3a and multiple second alignment auxiliary mechanisms 3b arranged perpendicularly to each other.

[0136] The first alignment auxiliary mechanism 3a and the second alignment auxiliary mechanism 3b, which are perpendicular to each other, can accurately position the battery pack 2 and ensure the accuracy of the battery pack 2 placement.

[0137] In this embodiment, please refer to Figure 9 and Figure 10 The axial direction of the positioning roller 362 of the first alignment auxiliary mechanism 3a is XX' (refer to the left and right directions). Figure 10 The positioning roller 362 of the second alignment auxiliary mechanism 3b is parallel to the orientation of the adapter 36 of the first alignment auxiliary mechanism 3a. The axial direction of the positioning roller 362 of the second alignment auxiliary mechanism 3b is parallel to the longitudinal direction YY' (see reference). Figure 10 Parallel to the orientation of the adapter 36 of the second alignment auxiliary mechanism 3b.

[0138] The top surface of the bearing part 10 includes two first side edges 11 parallel to the first direction AA' and two second side edges 12 parallel to the second direction BB', wherein the first direction AA' and the second direction BB' are perpendicular.

[0139] The V-groove 37b of the first alignment auxiliary mechanism 3a (reference) Figure 7 The bottom edge extends parallel to the first direction AA', and the second alignment auxiliary mechanism 3b has a V-groove 37b (reference). Figure 7 The bottom edge extends in a direction parallel to the second direction BB'.

[0140] When the battery body 20 is placed on the support 10, the first direction AA' is parallel to the left-right direction XX', the second direction BB' is parallel to the front-back direction YY', and the adapters 36 and positioning parts 37 of each alignment auxiliary mechanism 3 are accurately matched.

[0141] It is understood that the bottom edge of the V-groove 37b of the first alignment auxiliary mechanism 3a extends parallel to the first direction AA', and the bottom edge of the V-groove 37b of the second alignment auxiliary mechanism 3b extends parallel to the second direction BB', so that the battery body 20 can be precisely aligned in both the mutually perpendicular first direction AA' and the second direction BB' when it is placed, ensuring that the entire battery body 20 is accurately placed on the support part 10.

[0142] In this embodiment, the top surface of the support portion 10 includes a middle region 13 and a peripheral region 14.

[0143] In this embodiment, a plurality of first alignment auxiliary mechanisms 3a are located in the peripheral region 14 near the first side 11 and are arranged at intervals along the first side 11.

[0144] Multiple second alignment aids 3b are located in the peripheral region 14 near the second side 12 and are arranged at intervals along the second side 12.

[0145] The advantage of having multiple first alignment auxiliary mechanisms 3a located in the peripheral area 14 near the first side 11 is that they can cover a large area of ​​alignment as much as possible along the front-back direction YY' (second direction BB'), thereby ensuring overall alignment.

[0146] The advantage of having multiple second alignment aids 3b located in the outer region 14 near the second side 12 is that they can cover a large area of ​​alignment as much as possible along the left-right direction XX' (first direction AA'), thereby ensuring overall alignment.

[0147] In this embodiment, please refer to Figure 11The bottom surface of the battery body 20 is provided with a support pad 23. There are multiple support pads 23, which are spaced apart at the bottom of the battery body 20. It can be understood that when the battery pack 2 is placed on the ground, the support pads 23 can support the battery pack 2.

[0148] The position of the support pad 23 should be lower than that of the positioning roller 362; refer to the reference. Figure 1 , Figure 6 and Figure 11 After the vehicle body 1 moves away from under the battery pack 2, the first drive component 21 of the battery pack 2 retracts in the height direction, the main body of the battery 20 descends, and when the support pad 23 touches the ground, the first drive component 21 will continue to retract. At this time, the support pad 23 bears the overall weight of the battery pack 2, and the first drive component 21 is then received into the receiving slot 201 in the left and right direction XX'.

[0149] The support pad 23 is made of an elastomeric material and can provide a certain cushioning effect.

[0150] As an example, support pad 23 can be set as a polyurethane material block, and there can be 4 of them.

[0151] In this embodiment, please refer to Figure 9 and Figure 12 The vehicle body 1 also includes a limiting component 5, which includes an elastic rod 51, a mounting bracket 52, a trigger 54, and a limiting sensor 50.

[0152] like Figure 9 As shown, the top of the elastic rod 51 protrudes from the outer side of the side wall of the front of the vehicle 6 facing the support part 10, and is adapted to elastically retract when pressed by the side wall of the battery body part 20.

[0153] Understandably, the buffering effect of the elastic rod 51 can reduce the direct collision between the battery body 20 and the front of the vehicle 6 when the vehicle body enters the space below the battery body 20, thereby protecting the battery body 20 and the front of the vehicle 6 from damage.

[0154] Reference Figure 9 and Figure 12 The mounting bracket 52 is fixed on the inner side of the side wall facing the front of the vehicle and the bearing part 10, and the end of the elastic rod 51 is movably mounted on the mounting bracket 52.

[0155] The trigger 54 is fixed on the elastic rod 51; the limit sensor 50 is fixed on the mounting bracket 52. When the trigger 54 retracts elastically with the elastic rod 51, it passes through the limit sensor 50 and triggers the limit sensor 50.

[0156] Understandably, when the elastic rod 51 is pressed by the battery body 20 and retracts elastically, the trigger 54 will move and pass through the limit sensor 50, thereby triggering the limit sensor 50. The limit sensor can send a signal to the vehicle body to stop moving, thus avoiding a strong collision with the battery body 20.

[0157] Please refer to Figure 12 and Figure 14 The limit sensor 50 can be set as a micro switch 501 or an optocoupler 502.

[0158] See Figure 9 There are multiple limiting members 5, which are spaced apart on the vehicle body 1. In this embodiment, there are two limiting members 5, which are arranged at intervals along the first direction AA'.

[0159] Please refer to Figure 12 , Figure 13 The mounting bracket 52 is provided with a slidable elastic rod 51. The mounting bracket 52 has sleeve holes 53 at both ends. The elastic rod 51 slides in the sleeve holes 53. The elastic rod 51 is provided with a trigger 54 in the radial direction. The trigger 54 is located between the two sleeve holes 53. A limiting spring 510 is sleeved on the outside of the elastic rod 51. The limiting spring 510 is located between the trigger 54 and the sleeve hole 53 near the end of the elastic rod 51.

[0160] In this embodiment, the mounting bracket 52 is equipped with a micro switch 501, which is configured to cooperate with the trigger 54. The elastic rod 51 drives the trigger 54 to slide, so that the trigger 54 triggers the micro switch 501, thereby obtaining the information of the front of the vehicle 6 (see...). Figure 5 Battery pack 2 has been contacted (see...) Figure 5 The vehicle body 1 stopped reversing.

[0161] Please refer to Figure 14 and Figure 15 In another embodiment, the limit sensor 50 can be configured as an optocoupler 502. The elastic rod 51 drives the trigger 54 to slide, causing the trigger 54 to pass through the optocoupler 502 and block the light from the optocoupler 502. This causes a change in the voltage level of the optocoupler 502, which sends a signal, thereby allowing the battery body 20 (see [link]) to be detected. Figure 5 It has come into contact with vehicle body 1 (see Figure 5 The vehicle body 1 stopped reversing.

[0162] Please refer to Figure 9 The vehicle body 1 is equipped with a navigation laser detector 4, which is located on the top of the vehicle body 1. The navigation laser detector 4 is used to draw maps and assist the vehicle body 1 in achieving autonomous driving.

[0163] In other specific embodiments, please refer to Figure 9The vehicle body 1 is equipped with an obstacle avoidance laser detector 8, which is located at the rear end of the bearing part 10. The obstacle avoidance laser detector 8 is used to detect obstacles behind the vehicle body 1, thereby helping to improve the safety of the vehicle body 1 during movement.

[0164] As an example, the obstacle avoidance laser detector 8 can be installed on the front face of the vehicle body 1 and perform laser detector obstacle detection in front of the vehicle body 1.

[0165] As an example, the obstacle avoidance laser detector 8 can be set on the left and right sides of the vehicle body 1, and perform laser detector obstacle detection on the left and right sides of the vehicle body 1.

[0166] As an example, the obstacle avoidance laser detector 8 includes, but is not limited to, an infrared laser detector or a laser point cloud detector, and this application does not limit it.

[0167] In this embodiment, please refer to Figure 6 A charging pile 9 is provided on the top of the battery pack 2. The charging pile 9 is equipped with a charging gun 91. The charging pile 9 is suitable for electrical connection with the battery pack 2. The charging pile 9 is used to draw out the current inside the battery pack 2, and the charging gun 91 is used to draw out the current from the charging pile 9 to charge the device to be charged.

[0168] In this embodiment, the charging pile 9 and charging gun 91 are arranged on top of the battery pack 2. Since the first drive assembly 21 needs to extend from the receiving slot 201 of the battery pack 2 to the left and right when the battery pack 2 is loaded or unloaded, the charging pile 9 and charging gun 91 avoid affecting the movement of the first drive assembly 21, and the spatial arrangement is more reasonable. At the same time, since the vehicle body 1 needs to drive under the battery pack 2 from the front or rear when the battery pack 2 is loaded or unloaded, the charging pile 9 and charging gun 91 also avoid interfering with the loading and unloading of the battery pack 2.

[0169] The working process of a mobile charging system is briefly described below. Figure 11 As shown, the specific working process of the mobile charging system is illustrated by taking the battery pack 2 completing the charging of the new energy vehicle and waiting to be transported to another charging location as an example.

[0170] like Figure 1 and Figure 11As shown, when the vehicle body 1 is loaded with the battery pack 2, the vehicle body 1 drives to the vicinity of the battery pack 2, and the second drive assembly 22 of the battery pack 2 drives the first drive assembly 21 to extend out of the receiving slot 201. When the first drive assembly 21 is fully extended out of the receiving slot 201, the first mating nut 212a moves downward relative to the first lead screw 211, and the telescopic leg 212 in the first drive assembly 21 extends downward until the base 214 touches the ground. The first lead screw 211 rises relative to the first mating nut 212a, thereby lifting the second drive assembly 22 and the battery pack 2, and the telescopic leg 212 in the first drive assembly 21 continues to extend. When the battery pack 2 is lifted to a preset height, as... Figure 6 As shown, the vehicle body 1 drives under the battery pack 2. After the vehicle body 1 comes to a stop, the first drive assembly 21 of the battery pack 2 retracts its telescopic leg 212, causing the battery pack 2 to descend until the positioning roller 362 in the alignment auxiliary mechanism 3 first contacts the positioning component 37. (Refer to reference...) Figure 5 and Figure 6 The telescopic leg 212 in the first drive assembly 21 continues to retract, so that the telescopic leg 212 no longer supports the battery pack 2. At this time, the positioning roller 362 of the battery pack 2 enters the positioning member 37, and the battery pack 2 is supported by the positioning member 37 on the top surface of the bearing part 10. After the telescopic leg 212 in the first drive assembly 21 has completed retraction, the second drive assembly 22 drives the first drive assembly 21 to retract into the receiving groove 201. After the first drive assembly 21 has completely retracted into the receiving groove 201, the loading of the battery pack 2 is completed.

[0171] like Figure 6 As shown, when the vehicle body 1 is unloading the battery pack 2, the second drive assembly 22 drives the first drive assembly 21 to extend out of the receiving slot 201. The first drive motor 210 drives the first lead screw 211 to extend the telescopic leg 212 downwards until the bottom support 214 contacts the ground. Then, the first drive motor 210 continues to drive the first lead screw 211 to rotate. Under the action of the threaded engagement, the first lead screw 211 moves upward to further raise the battery pack 2, thus facilitating the vehicle body to move away from the space under the battery body 20. After the vehicle body 1 moves away from under the battery pack 2, the first drive motor 210 drives the first lead screw 211 to retract the telescopic leg 212, causing the battery pack 2 to descend until the support pad 23 at the bottom of the battery pack 2 contacts the ground. After the telescopic leg 212 is fully retracted, the second drive assembly 22 drives the first drive assembly 21 to retract back into the receiving slot 201. At this time, the battery pack 2 is placed on the ground at the charging equipment location, and the vehicle owner can remove the charging gun 91 from the top of the battery pack 2 to charge the electric vehicle.

[0172] As an example, vehicle body 1 includes one of the following: a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles include, but are not limited to, pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles. A battery is located at the bottom, front, or rear of the vehicle. The battery supplies power to the vehicle. As the vehicle's operating power source, the battery supplies power to the vehicle's electrical system, including meeting the power requirements for starting, navigation, and operation.

[0173] The vehicle also includes a controller and a motor. The controller is used to control the battery to power the motor, including to meet the power needs of the vehicle during startup, navigation and driving.

[0174] In a battery pack, there are multiple battery cells, which can be connected in series, parallel, or a combination thereof. A combination thereof means that multiple battery cells are connected in both series and parallel configurations. Multiple battery cells can be directly connected in series, parallel, or a combination thereof, and then the entire assembly of these battery cells is housed within a casing. Alternatively, the battery pack can consist of multiple battery cells first connected in series, parallel, or a combination thereof to form battery modules, and then these modules are connected in series, parallel, or a combination thereof to form a whole, which is also housed within a casing. The battery pack may also include other structures; for example, it may include a busbar for electrical connection between the multiple battery cells.

[0175] The battery cell includes at least one of a secondary battery or a primary battery; the battery cell includes, but is not limited to, lithium-sulfur batteries, sodium-ion batteries or magnesium-ion batteries.

[0176] In this embodiment, the mobile charging vehicle not only has charging power control and safety protection functions to ensure a safe and reliable charging process, but also provides different types of charging interfaces to adapt to different models of devices to be charged.

[0177] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0178] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0179] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0180] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A battery pack, characterized in that, include: Battery body (20); A first drive assembly (21) is installed on the side wall or bottom of the battery body (20) for driving the battery body (20) to move in the vertical direction so that the battery body (20) contacts or is separated from the ground; N first drive components (21) are provided on one side of the battery body (20), and N first drive components (21) are symmetrically provided on the other side of the battery body (20).

2. The battery pack according to claim 1, characterized in that, The first driving component (21) includes: First drive motor (210); The first lead screw (211) extends vertically and is connected to the drive end of the first drive motor (210). The first mating nut (212a) is sleeved on the first lead screw (211) and threadedly engaged with the first lead screw (211); The telescopic leg (212) extends vertically and is fixedly connected to the first mating nut (212a).

3. The battery pack according to claim 2, characterized in that, The first drive assembly (21) further includes a ball joint pin (213) and a base (214) that are movably connected. The ball joint pin (213) includes a pin rod (213a) and a ball head (213b) fixed to the bottom end of the pin rod (213a). The top of the base (214) is provided with a ball groove (215). The ball head (213b) is located in the ball groove (215). The opening of the ball groove (215) is smaller than the outer diameter of the ball head (213b). The tilt direction of the pin rod (213a) relative to the base (214) is adjustable. The pin rod (213a) is fixed to the lower end of the telescopic leg (212).

4. The battery pack according to claim 2, characterized in that, The first drive assembly (21) is mounted on the side wall of the battery body (20); the battery pack also includes a second drive assembly (22), the side wall of the battery body (20) has a receiving groove (201), the second drive assembly (22) is mounted on the bottom of the battery body (20), and the second drive assembly (22) is connected to the first drive assembly (21) to drive the first drive assembly (21) to extend out or be received into the receiving groove (201).

5. The battery pack according to claim 4, characterized in that, The first drive components (21) symmetrically arranged on both sides of the battery body (20) are configured in the same second drive component (22); The first drive assembly (21) further includes: a first lead screw housing (211a), wherein the first lead screw (211) is fixedly disposed within the first lead screw housing (211a); The second driving component (22) includes: The second drive motor (220) is fixed to the bottom of the battery body (20); The second lead screw (221) is fixed to the bottom of the battery body (20) and extends along the side wall perpendicular to the battery body (20). The second lead screw (221) is connected to the drive end of the second drive motor (220). The two ends of the second lead screw (221) in the length direction are constructed as a first threaded section (221a) and a second threaded section (221b). The thread direction of the first threaded section (221a) is opposite to that of the thread direction of the second threaded section (221b). Two second mating nuts (223) are threadedly engaged with the first threaded segment (221a) and the second threaded segment (221b) respectively. The two second mating nuts (223) are rotated and limited to allow the two second mating nuts (223) to move closer to or further away from each other. Two telescopic components (222) extend in the same direction as the second lead screw (221). One end of the telescopic component (222) is fixedly connected to the corresponding second mating nut (223), and the other end is fixedly connected to the first lead screw housing (211a) of the corresponding first drive assembly (21).

6. A mobile charging system, characterized in that, include: The battery pack according to any one of claims 1-5; The vehicle body (1) includes a front end (6) and a load-bearing part (10), the load-bearing part (10) being adapted to drive into and out of the gap between the battery body (20) and the ground for loading and unloading the battery pack.

7. The mobile charging system according to claim 6, characterized in that, Also includes: alignment The auxiliary mechanism (3) includes a positioning element (37) and an adapter (36); The adapter (36) includes a fixed frame (361) and a positioning roller (362). The two ends of the positioning roller (362) are provided on the fixed frame (361). The axial position of the positioning roller (362) is fixed. The positioning roller (362) is adapted to rotate in the circumferential direction. The positioning element (37) includes a positioning block (37a), the top of which is provided with a V-groove (37b), and the positioning roller (362) is adapted to slide into the bottom of the V-groove (37b) along the side wall of the V-groove (37b), so that the axial direction of the positioning roller (362) is parallel to the extension direction of the bottom edge of the V-groove (37b); One of the positioning element (37) and the adapter (36) is fixed to the top of the bearing part (10), and the other is fixed to the bottom of the battery body part (20).

8. The mobile charging system according to claim 7, characterized in that, The positioning block (37a) has mounting grooves (381) on its two side walls perpendicular to the bottom edge of the V-groove (37b); The positioning component (37) also includes a fixing box (38), two springs (380), and two connecting rods (382); The fixing box (38) has the positioning block (37a) located inside the fixing box (38), the V-groove (37b) protruding from the top of the fixing box (38), and the inner wall of the fixing box (38) has a through hole (38b); one end of the connecting rod (382) abuts against the bottom of the mounting groove (381), and the other end protrudes through the through hole (38b); The spring (380) is sleeved on the connecting rod (382), with one end of the spring (380) abutting against the bottom of the mounting groove (381) and the other end abutting against the inner wall of the fixing box (38); The positioning component (37) further includes a shock-absorbing block (39) located inside the fixing box (38), the shock-absorbing block (39) being located between the bottom of the positioning block (37a) and the fixing box (38).

9. The mobile charging system according to claim 7, characterized in that, It includes multiple alignment auxiliary mechanisms (3), which include multiple first alignment auxiliary mechanisms (3a) and multiple second alignment auxiliary mechanisms (3b) arranged in mutually perpendicular directions; The top surface of the bearing part (10) includes two first side edges (11) parallel to the first direction (AA') and two second side edges (12) parallel to the second direction (BB'), wherein the first direction (AA') and the second direction (BB') are perpendicular to each other; The top surface of the bearing part (10) includes a middle region (13) and a peripheral region (14); The bottom edge of the V-groove (37b) of the first alignment auxiliary mechanism (3a) extends parallel to the first direction (AA'), and the bottom edge of the V-groove (37b) of the second alignment auxiliary mechanism (3b) extends parallel to the second direction (BB'). Multiple first alignment aids (3a) are located in the peripheral region (14) near the first side (11) and are spaced apart along the first side (11); Multiple second alignment aids (3b) are located in the peripheral region (14) near the second side (12) and are spaced apart along the second side (12).

10. The mobile charging system according to claim 6, characterized in that, The vehicle body (1) also includes a limiting member (5), the limiting member (5) comprising: The elastic rod (51) has its top end protruding from the outer side of the side wall of the front of the vehicle (6) facing the support part (10), and is adapted to elastically retract when pressed by the side wall of the battery body part (20); Mounting bracket (52) is fixed on the inner side of the side wall of the front of the vehicle (6) facing the bearing part (10), and the end of the elastic rod (51) is movably disposed on the mounting bracket (52). The trigger (54) is fixed on the elastic rod (51); The limit sensor (50) is fixed on the mounting bracket (52). When the trigger (54) retracts elastically with the elastic rod (51), it passes through the limit sensor (50) and triggers the limit sensor (50).

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