Electric vehicle chassis battery replacing system based on vehicle-mounted guide rail

Abstract

The utility model provides an electric automobile chassis battery replacing system based on a vehicle-mounted guide rail, which belongs to the technical field of electric automobile charging and battery replacing stations, and comprises a vehicle-mounted positioning device and an auxiliary positioning device, and the vehicle-mounted positioning device comprises a battery fixing assembly and a vehicle-mounted guide rail assembly; the battery fixing assembly comprises a lock body fixing beam and a lock control main body; the vehicle-mounted guide rail assembly comprises a vehicle-mounted rail bearing plate, a vehicle-mounted rail cross beam, a vehicle-mounted rail V-shaped groove, a wheel stopping module, a battery replacing vehicle stopping sensing module, a vehicle-mounted rail gradually-widened opening and a telescopic driving body. The vehicle-mounted rail cross beam and the vehicle-mounted rail V-shaped groove are both arranged on the vehicle-mounted rail bearing plate; the vehicle-mounted rail gradually-wide opening, the battery replacing vehicle sensing stop module and the wheel stop module are all arranged on the vehicle-mounted rail V-shaped groove, and the telescopic driving bodies are arranged at the two ends of the lock body fixing beam; the auxiliary positioning device comprises a ground rail bearing plate, a ground rail V-shaped groove and a ground rail gradually-widened opening. The positioning of the battery box assembly and the battery replacement vehicle is accurate, the alignment time is saved, the battery replacement efficiency is improved, and the battery replacement reliability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle charging and swapping stations, and specifically relates to an electric vehicle chassis battery swapping system based on a vehicle-mounted guide rail. Background Art

[0002] With the increasing use of new energy vehicles, fast and efficient battery replacement solutions for electric vehicles are gaining more and more attention, and the demand for battery replacement for mining trucks and heavy trucks is becoming more and more urgent. Mining trucks and heavy trucks are heavy in weight and difficult to position. It is impossible to use passenger cars to lift the body or move the vehicle horizontally to effectively position it. Especially when the vehicle uses chassis-type battery replacement, the error of positioning by moving the body and according to the distance between the wheels is often large due to the large wheels of the vehicle. When the battery replacement vehicle that transports the battery box assembly drives to the bottom of the vehicle, it is difficult to accurately find the exact position of the battery box and align the battery box for disassembly, which makes the operation more difficult.

[0003] In a typical battery swapping solution, when the rail-mounted battery swapping vehicle is moving and aligning, the existing ground rails and the battery swapping vehicle are usually coordinated with the rail structure. When the battery swapping vehicle and the battery box are aligned, the alignment with the battery swapping vehicle is not precise enough after the vehicle body moves. During loading and unloading, the battery swapping vehicle is easily torqued and deviated, or even derailed, leading to safety accidents.

[0004] Similarly, the same alignment problem will occur when installing the battery box assembly. Many battery swap stations are designed with a complex mechanism for rotating the battery swap vehicle around the axis. In order to coordinate the positioning, it is equipped with camera positioning, program calculation and high-precision motor-driven rotating disk to rotate into place, and then repeat the camera positioning to check and confirm the positioning result. The entire information collection process is greatly affected by the environment, and alignment failure or operation accidents are prone to occur. Not only is the structure not simple enough, but it is also easy to cause frequent operations, resulting in reduced battery swap efficiency.

[0005] Therefore, in view of the prominent problems of chassis-type battery replacement in mining trucks and heavy trucks, it is extremely necessary to invent an electric vehicle chassis battery replacement device and system based on vehicle-mounted guide rails to solve the above problems. Utility Model Content

[0006] In view of the deficiencies of the above-mentioned prior art, the present invention aims to provide an electric vehicle chassis battery replacement system based on a vehicle-mounted guide rail. By setting a vehicle-mounted guide rail assembly and cooperating with a ground guide rail device, the structure is optimized, so that the battery replacement mechanism of the present invention is easy to operate, and the positioning of the battery replacement vehicle and the battery box assembly is accurate, which can save alignment time, thereby improving not only the battery replacement efficiency but also the battery replacement reliability.

[0007] The utility model is realized by the following technical solutions:

[0008] An electric vehicle chassis battery replacement system based on a vehicle-mounted guide rail, comprising a vehicle-mounted positioning device and an auxiliary positioning device, wherein the vehicle-mounted positioning device comprises a battery fixing assembly and a vehicle-mounted guide rail assembly; the battery fixing assembly comprises a lock body fixing beam and a control lock body, the lock body fixing beam is connected to the vehicle cross beam, and a plurality of the control lock bodies are arranged on the lock body fixing beam at equal intervals; the vehicle-mounted guide rail assembly comprises a vehicle-mounted rail bearing plate, a vehicle-mounted rail cross beam, a vehicle-mounted rail V-shaped groove, a wheel stop module, a battery replacement vehicle stop sensing module, a vehicle-mounted rail gradually widening mouth and a telescopic driving body; the vehicle-mounted rail cross beam and the vehicle-mounted rail V-shaped groove are both arranged on the vehicle-mounted rail bearing plate; the vehicle-mounted rail gradually widening mouth is arranged at the first end of the vehicle-mounted rail V-shaped groove, and the battery replacement vehicle stop sensing module and the wheel stop module are ... The stop modules are all arranged at the second end of the V-shaped groove of the vehicle rail; the telescopic driving body is arranged at both ends of the lock body fixing beam, and the upper part of the telescopic driving body is vertically connected to the end of the lock body fixing beam, and a driving motor and a telescopic rod are arranged inside the telescopic driving body, the upper part of the telescopic rod is connected to the driving shaft of the driving motor, and the lower part of the telescopic rod is vertically connected to the vehicle rail cross beam, and the driving motor drives the telescopic rod to move up and down; the auxiliary positioning device includes a ground rail bearing plate, a ground rail V-shaped groove and a ground rail gradually widening mouth, the ground rail bearing plate is arranged on the extension line of the vehicle rail bearing plate, the ground rail V-shaped groove is arranged on the ground rail bearing plate, and the ground rail gradually widening mouth is arranged at the second end of the ground rail V-shaped groove.

[0009] Preferably, the upper portion of the telescopic driving body is connected to the vehicle cross beam at both ends of the lock body fixed beam through fixing bolts.

[0010] Preferably, the vehicle rail cross beam and the vehicle rail V-shaped groove are parallel to each other and the vehicle rail cross beam is located outside the vehicle rail V-shaped groove.

[0011] Preferably, the two groups of vehicle rail bearing plates and the two groups of ground rail bearing plates are mirror-disposed and perpendicular to the vehicle cross beam.

[0012] Preferably, the battery-swapping vehicle stop sensing module is located at the end of the second end of the V-groove of the vehicle-mounted rail, and the wheel stopping module is located on the inner side of the battery-swapping vehicle stop sensing module.

[0013] Preferably, a sensor is provided on the battery swapping vehicle stop sensing module, and the battery swapping vehicle stop sensing module contacts the parking sensing module provided on the battery swapping vehicle to slow down and stop the battery swapping vehicle, and the wheel stopping module contacts the running wheels of the battery swapping vehicle and limits the running wheels.

[0014] Preferably, the gradually widening opening of the vehicle rail and the gradually widening opening of the ground rail are opposite to each other.

[0015] Preferably, the V-groove of the on-board rail and the V-groove of the ground rail are both arranged as inner groove structures, the inner groove structures match the running wheels of the battery-changing vehicle, and the running wheels roll in the inner groove structures and are constrained by the inner groove structures to correct the trajectory of the running wheels.

[0016] Preferably, a battery box assembly is placed on the battery swap vehicle, and the battery box assembly includes a battery box bracket, a positioning pin and a lock, and the positioning pin and the lock are both arranged on the battery box bracket, and the positioning pin is plugged into the positioning hole on the positioning plate, and the plurality of locks correspond to the positions of the locking body, and the locks are locked or released by the locking body.

[0017] Preferably, the corners of the top upper bracket of the battery-swapping vehicle are also provided with positioning angle blocks for positioning the battery box assembly.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model is provided with a vehicle-mounted guide rail assembly, the relative position of the vehicle-mounted guide rail assembly and the frame of the vehicle-mounted battery box assembly is fixed, and a walking and stopping device is provided, which can ensure that the RGV trolley is accurately positioned with the battery box assembly under the chassis of the electric vehicle, and the driving path of the RGV trolley is corrected by the vehicle-mounted guide rail assembly, which saves the time of adjusting the position of the trolley to align with the battery box assembly and improves the battery replacement efficiency.

[0020] 2. The utility model uses a telescopic driving body to raise and lower the vehicle-mounted guide rail assembly, which can be fixed on the vehicle cross beam when raised, making it easy to carry; when battery replacement is required, the docking position between the vehicle-mounted guide rail and the ground guide rail of the battery replacement station is set to a gradually widened shape, which maximizes the fault tolerance of the RGV trolley when changing tracks, corrects the trolley trajectory, and adapts to the deviation of the vehicle's position.

[0021] 3. The V-shaped grooves of the vehicle rails and the V-shaped grooves of the ground rails of the utility model are both set as inner groove structures, so that the running wheels are in the inner grooves and move guided by the grooves. The running wheels are not easy to fall out, and the RGV trolley travels smoothly and can improve safety.

[0022] 4. The utility model has reasonable structural design, strong ability to adapt to complex environments, and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an exploded schematic diagram of disassembling the battery box assembly of the utility model;

[0024] Figure 2 A schematic diagram of preparing to disassemble the vehicle battery assembly of the vehicle of the utility model;

[0025] Figure 3 It is a schematic diagram of disassembling the battery box assembly of the utility model;

[0026] Figure 4 It is a schematic diagram of taking out a low-power battery box assembly or preparing to install a fully-powered battery box assembly of the present invention;

[0027] Figure 5 It is a schematic diagram of the vehicle-mounted positioning device of the utility model;

[0028] Figure 6 This is a schematic diagram of the overall structure of the battery box assembly of the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the battery-swapping vehicle of the present utility model.

[0030] Description of the markings in the figure:

[0031] 11. Lock body fixing beam; 12. Control lock body; 21. Telescopic drive body; 22. Telescopic rod; 31. Vehicle rail bearing plate; 32. Vehicle rail cross beam; 33. Vehicle rail V-shaped groove; 34. Wheel stop module; 35. Battery swap vehicle stop module; 38. Vehicle rail gradually widening mouth; 40. Battery box bracket; 41. Positioning pin; 42. Lock head; 510. Upper bracket; 511. Positioning angle bevel block; 520. Lower bracket; 521. Fork arm secondary shaft; 522. Fixed bearing seat; 523. Movable wheel; 5 27. Fork arm main shaft; 531. First fork arm; 532. Second fork arm; 533. Third fork arm; 534. Fourth fork arm; 550. Lifting motor; 551. Lifting shaft; 552. Gearbox; 560. Travel wheel; 561. Travel shaft; 562. Fixed seat; 563. Travel motor; 580. Parking sensor module; 61. Ground rail bearing plate; 63. Ground rail V-shaped groove; 68. Ground rail gradually widening mouth; 70. Front wheel positioning groove; 80. Front wheel of the vehicle; 81. Vehicle cross beam; 82. Positioning plate. DETAILED DESCRIPTION

[0032] In order to fully describe the technical content, structural features, objectives and beneficial effects of the utility model, the following will be described in detail with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings do not need to be drawn to scale unless otherwise specified.

[0033] The utility model is an electric vehicle chassis battery replacement system based on vehicle-mounted guide rails, such as Figures 1 to 7 As shown, it includes a vehicle-mounted positioning device and an auxiliary positioning device. The vehicle-mounted positioning device includes a battery fixing component and a vehicle-mounted guide rail component.

[0034] The battery fixing assembly includes a lock body fixing beam 11 and a lock control body 12 . The lock body fixing beam 11 is connected to the vehicle cross beam 81 , and a plurality of lock control bodies 12 are arranged on the lock body fixing beam 11 at equal intervals.

[0035] The vehicle-mounted guide rail assembly includes a vehicle-mounted rail bearing plate 31, a vehicle-mounted rail cross beam 32, a vehicle-mounted rail V-groove 33, a wheel stop module 34, a battery-changing vehicle stop sensing module 35, a vehicle-mounted rail gradually widening mouth 38 and a telescopic driving body 21.

[0036] The rail cross beam 32 and the rail V-shaped groove 33 are both arranged on the rail bearing plate 31. In a preferred embodiment of the utility model, the rail cross beam 32 is connected to the rail bearing plate 31, the rail cross beam 32 and the rail V-shaped groove 33 are parallel to each other, and the rail cross beam 32 is located outside the rail V-shaped groove 33.

[0037] The vehicle rail gradually widening opening 38 is arranged at the first end of the vehicle rail V-shaped groove 33, that is, the vehicle rail V-shaped groove 33 is provided with a vehicle rail gradually widening opening 38 on the side facing the battery swap station. The vehicle rail gradually widening opening 38 can correct the running trajectory of the running wheels 560 of the battery swap vehicle.

[0038] The battery swap vehicle stop sensing module 35 and the wheel stop module 34 are both arranged at the second end of the onboard rail V-groove 33, and the battery swap vehicle stop sensing module 35 is located at the end of the second end of the onboard rail V-groove 33, and the wheel stop module 34 is located on the inner side of the battery swap vehicle stop sensing module 35. In a preferred embodiment of the utility model, a sensor is arranged on the battery swap vehicle stop sensing module 35, and the battery swap vehicle stop sensing module 35 contacts the parking sensing module on the battery swap vehicle, and the battery swap vehicle is decelerated and stopped by the sensor trigger, at which time, the wheel stop module 34 contacts the running wheel 560 of the battery swap vehicle and stops the running wheel 560 to a limited position.

[0039] The telescopic driving body 21 is arranged at both ends of the lock body fixed beam 11, and the telescopic driving body 21 has a built-in driving motor and a telescopic rod 22. The upper part of the telescopic driving body 21 is vertically connected to the end of the lock body fixed beam 11. Preferably, the upper part of the telescopic driving body 21 is connected to the vehicle cross beam 81 by bolts at both ends of the lock body fixed beam 11. The driving shaft of the driving motor inside the telescopic driving body 21 is connected to the upper part of the telescopic rod 22, and the lower part of the telescopic rod 22 is vertically connected to the vehicle rail cross beam 32. The telescopic driving body 21 drives the telescopic rod 22 to extend and retract through the driving motor, so that the vehicle rail bearing plate 31 is lifted and lowered by the extension and retraction of the telescopic rod 22, and the vehicle guide rail assembly is lowered or lifted to complete the battery replacement process.

[0040] The auxiliary positioning device includes a ground rail bearing plate 61, a ground rail V-shaped groove 63 and a ground rail gradually widening mouth 68. The ground rail bearing plate 61 is fixed on the horizontal ground and is located on the extension line of the vehicle rail bearing plate 31. The ground rail V-shaped groove 63 is arranged on the ground rail bearing plate 61 for the running wheel 560 to travel. The ground rail gradually widening mouth 68 is arranged at the second end of the ground rail V-shaped groove 63, and the vehicle rail gradually widening mouth 38 and the ground rail gradually widening mouth 68 are opened oppositely, so that the running wheel 560 can smoothly enter and exit the vehicle rail V-shaped groove and the ground rail V-shaped groove.

[0041] Preferably, the two groups of vehicle rail bearing plates 31 and the two groups of ground rail bearing plates 61 are mirror-disposed and perpendicular to the vehicle cross beam 81 .

[0042] In a preferred embodiment of the utility model, the on-board rail V-groove 33 and the ground rail V-groove 63 are both configured as inner groove structures, which match the running wheels of the battery-changing vehicle, and the running wheels roll in the inner groove structures of the on-board rail V-groove and the ground rail V-groove.

[0043] A battery box assembly is placed on the battery swap vehicle, and the battery box assembly includes a battery box bracket 40, a positioning pin 41 and a lock 42. The battery box bracket 40 carries a battery box, and the battery box bracket 40 carries and fixes the battery box. The positioning pin 41 and the lock 42 are both arranged on the battery box bracket 40. The positioning pin 41 cooperates with the positioning hole arranged on the positioning plate 82 on the vehicle cross beam 81 to locate the position of the battery box bracket 40. The multiple locks 42 correspond to the positions of the control lock body 12, and the battery box assembly is locked or unlocked by locking or loosening the control lock body 12.

[0044] The utility model needs to realize the battery replacement process by a battery replacement vehicle, that is, an RGV vehicle, which travels and rises on the vehicle rail V-shaped groove 33 and the ground rail V-shaped groove 63. The RGV vehicle referred to in the utility model includes a travel component, a lifting component and a supporting component.

[0045] The travel assembly includes a travel wheel 560, a travel shaft 561, a fixed seat 562 and a travel motor 563. The travel wheel 560 matches the shape of the vehicle rail V-groove 33 and the ground rail V-groove 63, and is arranged at both ends of the travel shaft 561 and is coaxially arranged with the travel shaft 561. The travel shaft 561 runs through the fixed seat 562 and is connected to the travel motor 563 by gear meshing. The fixed seat 562 is connected to the lower end surface of the lower bracket 520 through a bearing to play a supporting role. The travel motor 563 can drive the travel shaft 561 to rotate through gear meshing, thereby driving the travel wheel 560 to roll.

[0046] The supporting assembly includes an upper bracket 510, a positioning angle bevel 511 and a lower bracket 520. The positioning angle bevel 511 is arranged at the four corners of the upper bracket 510. The positioning angle bevel 511 is a right-angle structure, and an inclined slope is arranged on the inner side thereof, that is, the positioning angle bevel 511 is composed of two blocking bars with an inwardly inclined slope at a right angle. The side edges of the positioning angle bevel 511 are aligned with the right-angled side edges of the upper bracket 510, and play the role of aligning with the outer periphery of the lower end surface of the battery box bracket 40 and fixing it circumferentially.

[0047] The lifting assembly includes a fork arm secondary shaft 521, a fixed bearing seat 522, a movable wheel 523, a fork arm main shaft 527, a first fork arm 531, a second fork arm 532, a third fork arm 533, a fourth fork arm 534, a lifting motor 550, a top shaft 551 and a gearbox 552. The first fork arm 531 and the second fork arm 532 are arranged at the first end of the fork arm main shaft 527 and are penetrated by the fork arm main shaft 527. The third fork arm 533 and the fourth fork arm 534 are arranged at the second end of the fork arm main shaft 527 and are penetrated by the fork arm main shaft 527. The first fork arm 531, the second fork arm 532, the third fork arm 533 and the fourth fork arm 534 can cross and move around the fork arm main shaft 527. A plurality of movable wheels 523 are respectively arranged at the first ends of the first fork arm 531, the second fork arm 532, the third fork arm 533 and the fourth fork arm 534 in the same direction. The edges of the movable wheels 523 are in tangential contact with the upper bracket 510 and the lower bracket 520 and can slide on the bottom surface of the lower end of the upper bracket 510 and the upper surface of the lower bracket 520. A plurality of fixed bearing seats 522 are respectively arranged at the second ends of the first fork arm 531, the second fork arm 532, the third fork arm 533 and the fourth fork arm 534 in the same direction. The fork arm secondary shaft 521 is arranged on the fixed bearing seat 522, and the fork arm secondary shaft 521 is provided with two upper and lower shafts. The two ends of the first fork arm secondary shaft 521 respectively penetrate the second ends of the second fork arm 532 and the fourth fork arm 534, and the two ends of the second fork arm secondary shaft 521 respectively penetrate the second ends of the first fork arm 531 and the third fork arm 533. The second ends of the second fork arm 532 and the fourth fork arm 534 in the same direction are connected to the upper bracket 510 through the first fork arm secondary shaft 521 and the fixed bearing seat 522, and the second ends of the first fork arm 531 and the third fork arm 533 are connected to the lower bracket 520 through the second fork arm secondary shaft 521 and the fixed bearing seat 522, so as to realize the rotational movement of the four forks around the axis. The gearbox 552 is arranged on the upper end surface of the lower bracket 520, the lifting motor 550 is arranged on the gearbox 552, the top shaft 551 is arranged above the gearbox 552, and the upper end of the top shaft 551 contacts and supports the upper bracket 510.

[0048] In the preferred embodiment of the utility model, the top shaft 551 is driven by the gearbox 552 to push the upper bracket 510 upward, and the four cross arms form a stable support for the upper bracket 510. The fixed bearing seat 522 fixes one end of the four fork arms, and the middle position of the four fork arms is penetrated and fixed by the fork arm main shaft 527. The lifting motor 550 is fixed on the gearbox 552, and the upper bracket 510 moves vertically in the Z direction relative to the lower bracket 520 without any deviation such as tilt.

[0049] The specific implementation of the utility model is further described below:

[0050] Specific implementation steps:

[0051] S1. Drive the vehicle in and prepare for battery replacement.

[0052] The electric vehicle with the vehicle-mounted positioning device and the battery box assembly drives its front wheel 80 into the preset front wheel positioning groove 70 according to the route, and then drops the vehicle-mounted positioning assembly, so that the vehicle-mounted rail bearing plate 31 and the pre-set ground rail bearing plate 61 are positioned and docked through the gradually widened mouth shape. In the preferred embodiment of the utility model, specifically, the four telescopic driving bodies 21 drive the telescopic rods 22 to fall synchronously, and the vehicle-mounted rail bearing plate 31 stops falling after it is completely in contact with the ground, and the vehicle-mounted rail gradually widened mouth 38 and the ground rail gradually widened mouth 68 are positioned and docked on the ground.

[0053] S2. Remove the battery.

[0054] The empty RGV trolley drives under the vehicle along the docked track at a low position. The battery swap vehicle stop sensing module 35 contacts the parking sensing module 580 provided on the battery swap vehicle, which can trigger the battery swap vehicle to slow down and stop through the sensor. At this time, the wheel stop module 34 contacts the running wheel 560 of the battery swap vehicle and limits the running wheel 560 to stop. At this time, the lifting operation begins, the upper bracket 510 rises, and after contacting the battery box assembly on the vehicle, the control lock body 12 on the lock body fixing beam 11 is released, so that the battery box assembly on the vehicle falls onto the upper bracket 510. After the upper bracket 510 is lowered, the RGV trolley retreats and transports the unloaded battery box assembly back to the battery swap station.

[0055] Specifically, the front running wheel 560 slowly passes through the widening opening 38 of the vehicle rail from the V-shaped groove 63 of the ground rail, corrects the running track through the widening opening 38 of the vehicle rail, and continues to move forward along the V-shaped groove 33 of the vehicle rail. The rear running wheel 560 also enters the widening opening 38 of the vehicle rail, and the rear running wheel also synchronously corrects the running track, and continues to move forward along the V-shaped groove 33 of the vehicle rail. After the parking sensing device 580 disposed at the lower end of the lower bracket 520 senses the battery-swap vehicle stop sensing module 35, the trolley running motor 563 stops driving, the trolley slows down and stops, and the front running wheel 560 just contacts the wheel stop module 34, completing the positioning of the trolley. The lifting motor 550 drives the top shaft 551 through the gearbox 552 to lift the upper bracket 510 upward until it contacts the lower surface of the battery box bracket 40, and corrects the alignment deviation of the battery box bracket 40 through the positioning angle blocks 511 symmetrically arranged at the four corners of the upper end surface of the upper bracket 510. At this time, the locking body 12 on the vehicle end unlocks the lock 42 fixed to the battery box, the battery box assembly is disconnected, and the lifting assembly carries the battery box assembly down and returns to the charging and swapping station along the track.

[0056] S3. Install the battery.

[0057] The RGV trolley carries the fully charged battery box assembly at a low position and moves under the vehicle along the docked track, and stops moving in the same preset method as S2, and lifts the upper bracket 510. After fixing the battery box assembly in a preset method, the upper bracket 510 is lowered, and the battery-changing vehicle returns along the original route.

[0058] Specifically, the positioning pin 41 cooperates with the preset positioning hole on the positioning plate 82 fixed on the vehicle cross beam 81 in the Z direction to correct the positioning deviation of the control lock body 12 and the lock head 42. After the battery box assembly is lifted to the preset position, the control lock body 12 on the lock body fixing beam 11 is locked and fixed with the lock head 42, and the battery box assembly is fixed in the battery fixing assembly. The upper bracket 510 is lowered and driven out along the track back to the battery swap station.

[0059] S4, the vehicle lifts up the on-board positioning assembly and drives out of the battery swap station, that is, the telescopic driving body 21 drives the telescopic rod 22 to retract, lifts up the on-board positioning assembly to complete the battery swap process, and the electric vehicle drives out of the battery swap station.

[0060] The embodiments described above are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An electric vehicle chassis battery replacement system based on vehicle-mounted guide rails, characterized in that: It includes a vehicle-mounted positioning device and an auxiliary positioning device; The vehicle-mounted positioning device comprises a battery fixing assembly and a vehicle-mounted guide rail assembly; The battery fixing assembly comprises a lock body fixing beam and a lock control body, wherein the lock body fixing beam is connected to the vehicle cross beam, and a plurality of the lock control bodies are arranged on the lock body fixing beam at equal intervals; The vehicle-mounted guide rail assembly includes a vehicle-mounted rail bearing plate, a vehicle-mounted rail crossbeam, a vehicle-mounted rail V-groove, a wheel stop module, a battery-swap vehicle stop sensing module, a vehicle-mounted rail gradually widening mouth and a telescopic driving body; the vehicle-mounted rail crossbeam and the vehicle-mounted rail V-groove are both arranged on the vehicle-mounted rail bearing plate; the vehicle-mounted rail gradually widening mouth is arranged at the first end of the vehicle-mounted rail V-groove, and the battery-swap vehicle stop sensing module and the wheel stop module are both arranged at the second end of the vehicle-mounted rail V-groove; the telescopic driving body is arranged at both ends of the lock body fixing beam, and the upper part of the telescopic driving body is vertically connected to the end of the lock body fixing beam, and a driving motor and a telescopic rod are arranged inside the telescopic driving body, the upper part of the telescopic rod is connected to the driving shaft of the driving motor, and the lower part of the telescopic rod is vertically connected to the vehicle-mounted rail crossbeam, and the driving motor drives the telescopic rod to move up and down; The auxiliary positioning device includes a ground rail bearing plate, a ground rail V-shaped groove and a ground rail gradually widening mouth, the ground rail bearing plate is arranged on the extension line of the vehicle rail bearing plate, the ground rail V-shaped groove is arranged on the ground rail bearing plate, and the ground rail gradually widening mouth is arranged at the second end of the ground rail V-shaped groove.

2. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 1 is characterized in that: The upper part of the telescopic driving body is connected to the vehicle cross beam through fixing bolts at both ends of the lock body fixing beam.

3. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 1 is characterized in that: The vehicle rail cross beam and the vehicle rail V-shaped groove are parallel to each other and the vehicle rail cross beam is located outside the vehicle rail V-shaped groove.

4. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 1 is characterized in that: The two groups of vehicle rail bearing plates and the two groups of ground rail bearing plates are all mirror-arranged and perpendicular to the vehicle cross beam.

5. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 1 is characterized in that: The battery-swapping vehicle stop sensing module is located at the end of the second end of the V-shaped groove of the vehicle rail, and the wheel stopping module is located on the inner side of the battery-swapping vehicle stop sensing module.

6. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 5 is characterized in that: A sensor is provided on the battery-swapping vehicle stop sensing module, and the battery-swapping vehicle stop sensing module contacts the parking sensing module provided on the battery-swapping vehicle to slow down and stop the battery-swapping vehicle, and the wheel stopping module contacts the running wheels of the battery-swapping vehicle and limits the running wheels.

7. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 1 is characterized in that: The gradually widening opening of the vehicle rail and the gradually widening opening of the ground rail are opposite to each other.

8. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 1 is characterized in that: The V-shaped groove of the vehicle rail and the V-shaped groove of the ground rail are both configured as inner groove structures, the inner groove structures match the running wheels of the battery-swapping vehicle, and the running wheels roll in the inner groove structures.

9. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 1 is characterized in that: A battery box assembly is placed on the battery-swapping vehicle, and the battery box assembly includes a battery box bracket, a positioning pin and a lock. The positioning pin and the lock are both arranged on the battery box bracket, and the positioning pin is plugged into the positioning hole on the positioning plate. The positions of the plurality of locks correspond to those of the control lock body, and the locks are locked or released by the control lock body.

10. The electric vehicle chassis battery replacement system based on vehicle guide rails according to claim 9 is characterized in that: The corners of the top upper bracket of the battery-swapping vehicle are also provided with positioning angle blocks for positioning the battery box assembly.

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