Battery replacement system and battery replacement type electric frame transport vehicle

Abstract

The utility model relates to a battery replacing system and a battery replacing type electric frame transport vehicle, the battery replacing system comprises a mounting seat and a battery pack, and the mounting seat comprises a first-level positioning component, a second-level positioning component and a third-level positioning component; the battery pack comprises a battery, a first guide piece and a second guide piece; the transport vehicle comprises a plurality of battery replacing systems. The battery replacing system is provided with a three-stage guiding and positioning structure, so that the battery pack and the mounting seat are accurately butted in place; the battery replacing system adopts a modularized and standardized design, is reasonable and compact in arrangement and small in occupied space, and ensures normal work and normal charging of the battery pack when the vehicle runs; the battery replacement time is shortened, and the use efficiency of the vehicle is improved; the vehicle is pure in electric energy and free of tail gas emission, the electric quantity requirement of a steel mill for the new energy electric drive frame vehicle is met, and the problem of endurance anxiety is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation devices, relates to engineering vehicles, and specifically relates to a battery swapping system and a battery swapping type electric frame transport vehicle. Background Technique

[0002] New energy vehicle technology has been widely applied in the field of passenger cars, but it has just started in the field of heavy-duty transport vehicles. At present, the power sources of frame vehicles on the market generally adopt diesel engines or mechanical drives of diesel engines + hydraulic transmissions. The maximum load capacity of electric drive frame vehicles using lithium iron phosphate batteries as the power source is only 100 tons, and the battery power is only 423 kWh. At the same time, the vehicle can only be charged manually, which is not conducive to improving the transportation efficiency.

[0003] Frame transport vehicles usually require three-shift and two-operation work systems. The vehicles stop, start, and turn frequently. The average daily transport weight is about 3,000 tons, and the average daily running mileage is about 230 kilometers. Therefore, developing a long-range battery swapping type electric frame vehicle with a large load capacity, a long endurance mileage, and a short charging time is the key to solving the problems of existing frame transport vehicles. Summary of the Invention

[0004] An object of the utility model is to provide a battery swapping system.

[0005] To achieve the above object, the technical solution adopted by the utility model is:

[0006] A battery swapping system includes a mounting base and a battery pack.

[0007] The mounting base includes a mounting base frame, a primary positioning component, a secondary positioning component, a tertiary positioning component, and a mounting base end electrical connector. The primary positioning component, the secondary positioning component, the tertiary positioning component, and the mounting base electrical connector are all connected to the mounting base frame. The primary positioning component is used for the vision system to detect the position of the mounting base. The secondary positioning component and the tertiary positioning component are used for positioning during the installation of the battery pack. The mounting base end electrical connector is used for electrical connection with the battery pack.

[0008] The battery pack includes a battery frame, batteries, a first guiding component, a second guiding component, and a battery end electrical connector. The batteries are arranged in the battery frame. The first guiding component and the second guiding component are arranged on the battery frame. The first guiding component is used for cooperating with the secondary positioning component during the installation of the battery pack. The second guiding component is used for cooperating with the tertiary positioning component during the installation of the battery pack. The battery end electrical connector is connected to the batteries and is used for cooperating with the mounting base end electrical connector.

[0009] Preferably, a plurality of secondary positioning components are provided, and the plurality of secondary positioning components are distributed around the inside of the mounting seat frame. The secondary positioning components have guiding inclined surfaces, and the guiding inclined surfaces incline from top to bottom towards the middle of the mounting seat frame.

[0010] Further preferably, a plurality of first guiding components are provided, and the plurality of first guiding components are connected to the outer side of the battery frame. The first guiding components are blocks. During the process of installing the battery pack: the blocks slide and are guided on the guiding inclined surfaces.

[0011] Further preferably, an elastic plate body is provided at the bottom of the guiding inclined surface. When the battery pack is installed in the mounting seat frame, the elastic plate body abuts against the battery frame or the first guiding components.

[0012] Preferably, one of the tertiary positioning component and the second guiding component is a cylinder, and the other is a sleeve. When the battery pack is installed in the mounting seat frame, the cylinder is inserted into the sleeve.

[0013] Preferably, the mounting seat further includes a locking component, and the locking component is connected to the mounting seat frame and can extend or retract.

[0014] Further preferably, the battery pack further includes a locking block, and the locking block is connected to the battery frame. When installing or disassembling the battery pack, the locking component retracts; when the battery pack is installed in the mounting seat frame, the locking component extends and abuts against the locking block from above to form a block.

[0015] Preferably, the mounting seat further includes a shock-absorbing component, and the shock-absorbing component is provided at the inner bottom of the mounting seat frame.

[0016] Preferably, the mounting seat further includes an elastic component, and the elastic component is connected between the mounting seat frame and the mounting seat end electrical connector.

[0017] Preferably, the battery pack further includes a cooling assembly, and the cooling assembly is connected to the battery frame for cooling the battery. The cooling assembly includes a water-cooling unit and a water tank. The water-cooling unit is connected to the water tank, and the water-cooling unit is located below the water tank.

[0018] Another object of the present utility model is to provide a battery - swapping type electric frame transport vehicle, which effectively solves the problems of short battery life and long charging time of the power battery of an electric frame vehicle with a large tonnage load (vehicle body self - weight of 50 tons and rated carrying capacity of 120 tons).

[0019] To achieve the above object, the technical solution adopted by the present utility model is as follows:

[0020] A battery - swapping type electric frame transport vehicle includes a vehicle body and a battery - swapping system. The vehicle body includes a frame, a drive axle assembly, and a driven axle assembly. The drive axle assembly and the driven axle assembly are connected to the bottom of the frame. An installation opening is provided on the vehicle body, and the battery - swapping system is connected to the installation opening and is located below the frame. The mounting seat is connected to the installation opening through a frame connecting piece.

[0021] Preferably, in the above - mentioned technical solution, installation openings are provided on the frame at the front and rear of the drive axle assembly, and each installation opening is connected to a battery - swapping system.

[0022] Preferably, in the above - mentioned technical solution, the installation directions of the battery - swapping systems connected to the front and rear of the drive axle assembly are opposite.

[0023] Preferably, in the above - mentioned technical solution, the drive axle assembly includes a motor, a wheel - side speed reducer, and a drive axle. The motor is connected to the battery - swapping system, the wheel - side speed reducer is in transmission connection with the motor, and the drive axle is in transmission connection with the wheel - side speed reducer.

[0024] Due to the application of the above - mentioned technical solution, the present utility model has the following advantages compared with the prior art:

[0025] 1. The battery - swapping system is provided with a three - level guiding and positioning structure, which ensures that the battery pack can be accurately docked with the mounting seat quickly and without error;

[0026] 2. The battery - swapping system adopts modular design and standardized design, with reasonable and compact layout and small occupied space. It can not only ensure the normal operation of the battery pack during vehicle operation, but also ensure the normal charging of the battery pack at the battery - swapping station;

[0027] 3. The battery packs of the vehicle can be independently swapped. It only takes 5 - 7 minutes to swap the battery once, which not only effectively solves the problem of long charging and swapping time of the power battery, but also shortens the battery - swapping time and greatly improves the vehicle use efficiency;

[0028] 4. The vehicle uses pure electric energy and has no exhaust emissions, truly achieving zero emissions, effectively promoting the "dual - carbon" work, meeting the power demand of the steel mill for new - energy electric - drive frame vehicles, and solving the range - anxiety problem. Description of the Drawings

[0029] Attached Figure 1 is a schematic structural diagram of the transport vehicle in this embodiment;

[0030] Attached Figure 2 is a schematic structural diagram of the transport vehicle when the battery pack is removed in this embodiment;

[0031] Attached Figure 3 is a schematic structural diagram of the mounting seat in this embodiment;

[0032] Attached Figure 4 is a schematic structural diagram of the battery pack in this embodiment.

[0033] In the above drawings:

[0034] 10. Frame; 100. Mounting opening; 11. Driving axle assembly; 12. Driven axle assembly; 13. Cab;

[0035] 2. Mounting seat; 20. Mounting seat frame; 200. Frame connecting piece; 201. Heat dissipation protection plate; 21. First positioning part; 22. Second positioning part; 220. Guide inclined plane; 221. Elastic plate body; 23. Third positioning part; 24. Locking part; 25. Mounting seat end electrical connector; 26. Shock absorber; 27. Elastic part;

[0036] 3. Battery pack; 30. Battery frame; 31. Battery; 32. First guiding piece; 33. Second guiding piece; 34. Lock block; 35. Battery end electrical connector; 360. Water-cooling unit; 361. Water tank. Detailed implementation manners

[0037] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0038] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] As Figure 1A battery-swap electric frame transport vehicle is shown, including a vehicle body and a battery-swap system. The vehicle body and the battery-swap system are described in detail below.

[0040] like Figure 2 As shown, the vehicle body includes a vehicle frame 10, a driving axle assembly 11, a driven axle assembly 12, and a cab 13. The driving axle assembly 11 and the driven axle assembly 12 are connected to the bottom of the vehicle frame 10, and the cab 13 is arranged at one end of the vehicle frame 10. Specifically:

[0041] The frame 10 is composed of a cross beam, a longitudinal beam and a side beam. An installation opening 100 is opened on the frame 10, and the battery swap system is connected at the installation opening 100. In order to leave enough hoisting space for the battery swap system, the side beams of the frame 10 are strengthened at the position of the installation opening 100, and the middle is hollowed out to ensure that the battery swap system can be lifted from the top for battery swap operations.

[0042] In this embodiment: installation openings 100 are opened on the frame 10 at the front and rear of the drive axle assembly 11, that is, two installation openings 100 are opened, and each installation opening 100 is connected to a battery replacement system, that is, two battery replacement systems, which balances the center of gravity of the entire vehicle. The center of gravity of the vehicle is almost in the middle of the two sets of drive axle assemblies 11, ensuring the driving stability of the vehicle; the installation distance of the two battery packs 3 can meet the requirement of using two side-by-side vehicles at the battery replacement station to independently lift the battery pack 3, solving the problems of battery life anxiety and long charging and replacement time.

[0043] In this embodiment: the installation directions of the battery replacement systems connected to the front and rear of the drive axle assembly 11 are opposite, or in other words, the battery replacement systems at the front and rear of the drive axle assembly 11 are rotated 180° during installation, so that battery replacement can be performed without specifying the direction in which the vehicle enters the battery replacement station, which provides more convenience for battery replacement operations.

[0044] The drive axle assembly 11 includes a motor, a wheel-side reducer, and a drive axle. The motor is connected to the battery exchange system, the wheel-side reducer is connected to the motor, and the drive axle is connected to the wheel-side reducer. There is no gearbox, drive shaft, or central transmission. It has the characteristics of strong driving force, high driving speed (30Km / h), simple structure, strong driving force, high transmission efficiency, low vehicle operation failure rate, simpler maintenance work, and convenient maintenance.

[0045] The driving axle assembly 11 and the driven axle assembly 12 are equipped with a braking system, a suspension system, a steering system, and a hydraulic system. Among them:

[0046] The braking system can adopt a form such as a combination of air braking and motor regenerative braking. The braking force of the air braking is provided by the driven axle assembly 12, and the motor regenerative braking force is provided by the driving axle assembly 11. Under the management of the vehicle control system, the braking forces of the two are reasonably distributed to achieve a perfect combination of braking force and brake energy recovery.

[0047] The suspension system can adopt, for example, an oil-gas suspension to ensure that the drive axle assembly 11 has good adhesion, and also plays a very good role in shock absorption and vibration isolation.

[0048] The steering system can adopt a method such as a mechanical cross tie rod to achieve front and rear steering synchronization, and achieve the steering synchronization of the front and rear steering axles through a way of connecting the volumes of hydraulic cylinders, etc., to provide the space required for the battery swapping system during battery swapping.

[0049] The hydraulic system is mainly used to control the steering and lifting actions of the vehicle.

[0050] In this embodiment: The braking system, suspension system, steering system, and hydraulic system are not directly related to the inventive points of this application and can adopt existing systems. The above are only listed as applicable methods.

[0051] The battery swapping system is installed on the vehicle frame 10 through the installation port 100 and is located below the vehicle frame 10, and is installed in a sunken manner without affecting the transportation and loading above the vehicle frame 10.

[0052] The battery swapping system includes a mounting seat 2 and a battery pack 3. The mounting seat 2 is connected at the installation port 100, and the battery pack 3 is replaceably installed in the mounting seat 2. Specifically:

[0053] Such as Figure 3 shown: The mounting seat 2 includes a mounting seat frame 20, a primary positioning component 21, a secondary positioning component 22, a tertiary positioning component 23, a locking component 24, and a mounting seat end electrical connector 25. The primary positioning component 21, secondary positioning component 22, tertiary positioning component 23, locking component 24, and mounting seat end electrical connector 25 are all connected to the mounting seat frame 20. Among them:

[0054] A vehicle frame connecting piece 200 is provided on the mounting seat 20, and the entire mounting seat 2 is connected to the installation port 100 through the vehicle frame connecting piece 200. In addition, a protective plate is provided around the mounting seat 20 to protect the safety of the battery frame 30 and the battery pack 3; the mounting seat 20 is also provided with a heat dissipation protective plate 201, which can not only achieve the function of the protective plate but also does not affect the ventilation effect of the cooling component of the battery pack 3.

[0055] The primary positioning component 21 is used for the vision system to detect the position of the mounting seat 2. A plurality of primary positioning components 21 are provided, and the plurality of primary positioning components 21 are relatively distributed on both sides of the mounting seat frame 20.

[0056] The secondary positioning component 22 is used for positioning during the installation of the battery pack 3, realizing the lateral and longitudinal limits of the battery pack 3 on the mounting seat 20. A plurality of secondary positioning components 22 are provided, and the plurality of secondary positioning components 22 are distributed around the inside of the mounting seat frame 20; the secondary positioning component 22 has a guiding inclined surface 220, and the guiding inclined surface 220 inclines towards the middle of the mounting seat frame 20 from top to bottom. In addition, an elastic plate body 221 is provided at the bottom of the guiding inclined surface 220. During the running of the vehicle, due to vibration or swing, relative displacement may occur between the battery pack 3 and the mounting seat 2. The elastic plate body 221 can be used to eliminate and adapt to vibrations or swings in the lateral, longitudinal, and vertical directions.

[0057] The tertiary positioning component 23 is also used for positioning during the installation of the battery pack 3. A plurality of tertiary positioning components 24 are also provided and are distributed on the inner bottom of the mounting seat frame 20. The tertiary positioning component 24 is a cylinder.

[0058] The locking component 24 is connected to the mounting seat frame 20, and the locking component 24 can extend or retract, that is, the locking component 24 is a telescopic member, such as a telescopic oil cylinder or the like, to realize the vertical limit of the battery pack 3 during the running of the vehicle.

[0059] The mounting seat end electrical connector 25 is used for electrical connection with the battery pack 3.

[0060] In addition, the mounting seat 2 further includes a shock absorber 26 and an elastic member 27. The shock absorber 26 can be a rubber pad, etc. The shock absorber 26 is provided on the inner bottom of the mounting seat frame 20 to reduce the damage to the battery 31 caused by vibration during driving; the elastic member 27 can be a spring. The elastic member 27 is connected between the mounting seat frame 20 and the mounting seat end electrical connector 25. The shock absorber 26 and the elastic member 27 can ensure that the battery pack 2 can also adapt to complex working conditions such as vibration, impact, and swing during the running of the vehicle, and can also ensure that the battery end electrical connector 35 of the battery pack 3 and the mounting seat end electrical connector 25 of the mounting seat 2 are closely matched, and there will be no power-off or connector damage, ensuring the safety of the three-electric system.

[0061] As Figure 4 shown: The battery pack 3 includes a battery frame 30, a battery 31, a first guiding member 32, a second guiding member 33, a locking block 34, a battery end electrical connector 35, and a cooling component. The battery 31 is arranged inside the battery frame 30. The first guiding member 32, the second guiding member 33, the locking block 34, the battery end electrical connector 35, and the cooling component are all connected to the battery frame 30. Among them:

[0062] The battery frame 30 adopts an assembled manner, which is convenient for the inspection and maintenance of the internal battery 31; a hoisting device is provided at the top of the battery frame 30, and the battery pack 3 can be taken out from the mounting seat 2 through the hoisting device.

[0063] Battery 31 uses lithium iron phosphate battery, which has a long service life (single cell cycle life ≥ 4200 times), is safe and reliable. The power of one battery pack 3 is 344Kwh. A frame transport vehicle uses two battery packs 3 as a power source, with a total power of 688KWh. When the vehicle is fully charged and fully loaded (carrying 120T), it can run for about 70Km, and the comprehensive cruising range is about 120km, which solves the problem of short cruising range of power batteries; and it is equipped with a battery management system to provide complete protection, online detection, cell balancing and independent energy supply for the battery, ensuring that even one battery pack 3 can ensure the normal operation of the vehicle, and also ensure the safe charging of the battery pack 3 at the battery swap station.

[0064] The first guide member 32 is used to cooperate with the secondary positioning member 22 during the installation of the battery pack, and to align with the direction of the mounting seat frame 20 during battery replacement. A plurality of corresponding first guide members 32 are also provided, and a plurality of first guide members 32 are connected to the outside of the battery frame 30. The first guide member 32 is a block, such as a wedge-shaped block. During the installation of the battery pack: the block slides on the guide slope 200 to achieve guidance. When the battery pack 3 is installed in the mounting seat frame 20, the elastic plate 221 on the secondary positioning member 22 presses against the battery frame 30 or the first guide member 32.

[0065] The second guide member 33 is used to cooperate with the three-stage positioning component 23 during the installation of the battery pack to achieve accurate positioning of the battery pack 3 and the mounting seat 2, ensuring that the battery-end electrical connector 35 on the battery pack 3 and the mounting seat-end electrical connector 25 on the mounting seat are accurately connected during battery replacement. The second guide member 33 is a sleeve, and when the battery pack 3 is installed in the mounting seat frame 20, the column of the three-stage positioning component 23 is inserted into the sleeve of the second guide member 33.

[0066] The locking block 34 is connected to the battery frame 30. When the battery pack 3 is installed or removed, the locking component 24 retracts. When the battery pack 3 is installed in the mounting seat frame 20, the locking component 24 extends out and contacts the locking block 34 from above to form a barrier, applying pressure to the locking block 34 in the vertical direction to ensure that the battery pack 2 will not detach from the mounting seat 2 when the vehicle is on a bumpy road, thereby preventing the vehicle from losing power and ensuring the safety of the vehicle's three-electric system.

[0067] The battery end electrical connector 35 is connected to the battery 31 and is used to cooperate with the mounting end electrical connector 25 to achieve communication and energy transfer. In addition, each battery pack 3 can communicate with the vehicle-mounted main high-voltage box and the battery swap station through the T-BOX.

[0068] The cooling component is used to cool the battery 31, ensuring the heat generated by the battery 31 in the ambient temperature throughout the year and during the power consumption process, and ensuring that the battery 31 can operate at an appropriate temperature under any working conditions, thereby extending the service life of the battery. The cooling component includes a water-cooling unit 360 and a water tank 361. The water-cooling unit 360 is connected to the water tank 361. The water tank 361 is installed at the highest position of the battery pack 3, and the water-cooling unit 360 is located below the water tank 361, ensuring that the pipeline of the water-cooling unit 360 is filled with water and also solving the problem that the coolant is not easily filled up at one time.

[0069] The vehicle can be equipped with a battery management system to ensure the safety and life balance of the battery swapping system when used on the vehicle, and also ensure the normal charging management of each battery pack 3 at the battery swapping station. The battery management system can adopt, for example, a master-slave management mode. Each battery pack 3 is equipped with a slave battery management system, and the whole vehicle is also equipped with a master battery management system. The self-contained battery management system of each battery pack 3 can ensure that each battery pack 3 can meet the normal operation of the vehicle. Even if one battery pack 3 fails, it will not affect the normal operation of the vehicle; the master battery management system balances the voltage distribution of the two battery packs 3 to ensure the life balance of each battery and can extend the service life of the battery.

[0070] The following specifically elaborates on the battery swapping process of this embodiment:

[0071] After the vehicle enters the battery swapping position at the battery swapping station, the driver issues a battery swapping command in the cab 13, and the locking component 24 on the mounting seat 2 retracts. After receiving the command for the locking component 24 to retract, the vehicle in the battery swapping station moves above each battery pack 3, detects the relative positions of the battery pack 3, the primary positioning component 21 of the mounting seat 2, and the cross beams on both sides of the vehicle frame 10 through the vision system of the vehicle in the battery swapping station, and sends a battery swapping command to the vehicle in the battery swapping station. The lifting mechanisms of the vehicle respectively grab the hoisting of their respective battery frames 30 to lift the battery pack 3 from the mounting seat 2 and lift it off the vehicle to the battery swapping station.

[0072] The fully charged battery pack 3 is hoisted back to the top of the vehicle frame 10 to achieve a rough positioning of the battery pack 3. During the falling process of the battery pack 3, the secondary positioning component 22 ensures that the battery pack 3 can fall into the mounting seat 2. The guiding slope 220 of the secondary positioning component 22 can ensure that the further the battery pack 3 falls, the smaller the matching gap between the battery pack 3 and the mounting seat frame 20 becomes. When it falls to the tertiary positioning component 23, the column of the tertiary positioning component 23 and the guiding structure of the mounting seat end electrical connector 25 can ensure that the battery end electrical connector 35 of the battery pack 3 and the mounting seat end electrical connector 25 of the mounting seat 2 are accurately aligned, ensuring the safe docking of the battery pack 3 during battery replacement. At the same time, the mounting seat end electrical connector 25 is installed on the elastic member 27. Even if the mounting seat end electrical connector 25 has a manufacturing error, the spring force can eliminate the misalignment caused by the manufacturing error, and at the same time, it can also ensure that different battery packs 3 can be accurately and safely docked with the mounting seat 2.

[0073] This embodiment can solve the problems of short power battery life and long charging time of electric frame vehicles with large tonnage load (vehicle body weight of 50 tons, rated load capacity of 120 tons); at the same time, it adopts a method of replacing two battery packs at the same time at a battery replacement station, which not only solves the problem of long power battery charging time, but also shortens the battery replacement time, greatly improving the vehicle's utilization efficiency.

[0074] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A battery swapping system, comprising a mounting base and a battery pack, characterized in that: The mounting base includes a mounting base frame, a primary positioning component, a secondary positioning component, a tertiary positioning component, and a mounting base end electrical connector. The primary positioning component, secondary positioning component, tertiary positioning component, and mounting base electrical connector are all connected to the mounting base frame. The primary positioning component is used for the vision system to detect the position of the mounting base. The secondary positioning component and tertiary positioning component are used for positioning during the installation of the battery pack. The mounting base end electrical connector is used for electrical connection with the battery pack; The battery pack includes a battery frame, a battery, a first guiding component, a second guiding component, and a battery end electrical connector. The battery is arranged inside the battery frame. The first guiding component and the second guiding component are arranged on the battery frame. The first guiding component is used for cooperating with the secondary positioning component during the installation of the battery pack. The second guiding component is used for cooperating with the tertiary positioning component during the installation of the battery pack. The battery end electrical connector is connected to the battery and is used for cooperating with the mounting base end electrical connector.

2. The battery swapping system according to claim 1, wherein: A plurality of the secondary positioning components are provided, and the plurality of secondary positioning components are distributed around the inside of the mounting base frame. The secondary positioning component has a guiding inclined surface, and the guiding inclined surface inclines from top to bottom towards the middle of the mounting base frame; A plurality of the first guiding components are provided, and the plurality of first guiding components are connected to the outside of the battery frame. The first guiding component is a block. During the installation of the battery pack: the block slides and is guided on the guiding inclined surface.

3. The battery swapping system according to claim 2, wherein: An elastic plate body is arranged at the bottom of the guiding inclined surface. When the battery pack is installed in the mounting base frame, the elastic plate body abuts against the battery frame or the first guiding component.

4. The battery swapping system according to claim 1, wherein: One of the tertiary positioning component and the second guiding component is a cylinder, and the other is a sleeve. When the battery pack is installed in the mounting base frame, the cylinder is inserted into the sleeve.

5. The battery swapping system according to claim 1, characterized in that: The mounting base further includes a locking component, and the locking component is connected to the mounting base frame and can extend or retract; The battery pack further includes a locking block, and the locking block is connected to the battery frame. When installing or disassembling the battery pack, the locking component retracts; when the battery pack is installed in the mounting base frame, the locking component extends and abuts against the locking block from above to form a block.

6. The battery swapping system according to claim 1, wherein: The mounting base further includes a shock absorber, and the shock absorber is arranged at the inner bottom of the mounting base frame; and / or The mounting base further includes an elastic member, and the elastic member is connected between the mounting base frame and the mounting base end electrical connector.

7. The battery swapping system according to claim 1, wherein: The battery pack further includes a cooling component, which is connected to the battery frame and used to cool the battery. The cooling component includes a water-cooling unit and a water tank. The water-cooling unit is connected to the water tank, and the water-cooling unit is located below the water tank.

8. A battery-swapping type electric frame transport vehicle, comprising a vehicle body and a battery-swapping system. The vehicle body includes a vehicle frame, a driving axle assembly, and a driven axle assembly. The driving axle assembly and the driven axle assembly are connected to the bottom of the vehicle frame. An installation opening is formed in the vehicle body, and the battery-swapping system is connected to the installation opening and is located below the vehicle frame. It is characterized in that: The battery swapping system is the battery swapping system described in any one of claims 1 to 7, and the mounting seat is connected to the mounting opening through a vehicle frame connecting member.

9. The battery-swapping type electric frame transport vehicle according to claim 8, wherein: Mounting openings are provided on the vehicle frames at the front and rear of the drive axle assembly, and each mounting opening is connected to the battery swapping system; The mounting directions of the battery swapping systems connected to the front and rear of the drive axle assembly are opposite.

10. The battery-swapping type electric frame transport vehicle according to claim 9, wherein: The drive axle assembly includes a motor, a wheel side reducer, and a drive axle. The motor is connected to the battery swapping system, the wheel side reducer is drivingly connected to the motor, and the drive axle is drivingly connected to the wheel side reducer.

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