Chassis battery replacing system

Abstract

The utility model discloses a chassis battery replacing system, which belongs to the technical field of electric automobile battery replacing stations, and comprises a battery rack, a stacker, a battery replacing trolley and a cache mechanism, the stacking machine is used for transferring a battery pack to the battery rack or transferring the battery pack out of the battery rack; the battery replacing trolley is used for transferring a battery pack to a battery replacing position or transferring the battery pack detached from the vehicle out of the battery replacing position at the battery replacing position; the temporary storage mechanism is used for temporarily storing the battery packs which are transferred by the stacking machine and come from the battery rack and transferring the battery packs to the vehicle through the battery replacing trolley, or temporarily storing the battery packs which are transferred by the battery replacing trolley and come from the vehicle and transferring the battery packs to the battery rack through the stacking machine. According to the utility model, the temporary storage mechanism is used for temporarily storing the battery pack from the battery rack or the battery pack from the vehicle, so that the waiting time of the battery replacing trolley can be saved, and the battery replacing efficiency of the vehicle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile battery swap station technical field especially relates to a chassis battery swap system. BACKGROUND

[0002] New energy vehicles, especially pure electric vehicles (EVs), are experiencing unprecedented rapid development as an important way to reduce carbon emissions and promote sustainable development. However, despite the significant progress made in performance, driving experience, and intelligence, the limitations of their range remain one of the key factors that hinder their widespread popularity. Currently, the range of mainstream electric vehicles on the market is generally concentrated between 300km and 500km, which is obviously insufficient for long-distance travel or high-frequency use compared to the hundreds or even thousands of kilometers of range offered by traditional fuel vehicles.

[0003] To overcome the range anxiety of electric vehicles, the industry has actively explored and practiced various solutions, among which fast charging technology and battery swap technology are particularly noteworthy. Fast charging technology significantly shortens the time required for battery charging by increasing charging power, providing users with a more flexible energy replenishment method. However, fast charging technology is still limited by factors such as battery materials, thermal management, and grid capacity, and frequent fast charging can have some impact on battery life.

[0004] In contrast, battery swap technology offers a new approach to extending the practical use of electric vehicles with its efficiency and convenience. As the core carrier of this technology, battery swap stations not only enable quick battery replacement but also optimize energy utilization efficiency through centralized charging management, reducing user waiting time. The existing battery swap station workflow mainly includes unloading of depleted batteries, storage, extraction and installation of fully charged batteries. While this process effectively improves the range of electric vehicles, there are still many areas for optimization in actual operation.

[0005] Therefore, how to further shorten the waiting time for battery replacement is a technical problem that needs to be solved. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a chassis battery swap system to solve the problems existing in the prior art. The cache mechanism temporarily stores battery packs from the battery rack or from the vehicle, saving the waiting time of the battery swap trolley, and thus improving the battery swap efficiency of the vehicle.

[0007] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0008] The utility model provides a kind of chassis battery replacement system, including battery rack, stacker, battery replacement trolley and buffer mechanism, the battery rack is used to deposit battery pack;The stacker is used to transfer battery pack to the battery rack, or battery pack is transferred out of the battery rack;The battery replacement trolley is used to transfer battery pack to battery replacement position, or battery pack is transferred out of the battery replacement position in battery replacement position;The buffer mechanism is used to temporarily store battery pack from the battery rack by the stacker and is transferred to the vehicle by the battery replacement trolley, or temporarily stores battery pack from the vehicle by the battery replacement trolley and is transferred to the battery rack by the stacker.

[0009] In an embodiment, the battery replacement trolley adopts RGV trolley, the RGV trolley includes walking assembly, transverse moving assembly, rotating base and lifting platform, and battery locking and unlocking platform;The battery locking and unlocking platform is installed on the rotating base through the lifting platform;The rotating base is connected with walking assembly through transverse moving assembly and RGV walking track;The rotating base is used to drive the lifting platform to rotate in horizontal plane;The transverse moving assembly is used to drive the lifting platform to move in the direction perpendicular to the RGV walking track.

[0010] In an embodiment, the buffer mechanism includes frame and locking and unlocking assembly connected with the frame, the locking and unlocking assembly is used to lock or unlock battery pack, and the frame is installed below the battery rack.

[0011] In an embodiment, the stacker includes loading platform, lifting mechanism, translation mechanism and bidirectional track, the bidirectional track is installed on the loading platform, the loading platform is installed with fork, the fork is used to pick or place battery pack, the lifting mechanism is used to drive the loading platform to rise and fall, and the translation mechanism is used to drive the loading platform to move horizontally.

[0012] In an embodiment, it further includes positioning mechanism, the positioning mechanism is used to position vehicle, so that the vehicle is in battery replacement position, and the positioning mechanism includes front wheel positioning mechanism and rear wheel positioning mechanism.

[0013] In an embodiment, the front wheel positioning mechanism includes roller and transverse clamping push plate, the roller is distributed in V type and forms V type groove for accommodating front wheel, the transverse clamping push plate is used to push front wheel to move horizontally, and the rolling direction of the roller is parallel to the moving direction of the transverse clamping push plate.

[0014] In an embodiment, the rear wheel positioning mechanism includes roller and positioning push block, the roller is distributed horizontally and forms rolling surface for supporting rear wheel, the positioning push block is used to push rear wheel to move horizontally, and the rolling direction of the roller is parallel to the moving direction of the positioning push block.

[0015] In an embodiment, a door opening and closing mechanism is further included, which is installed between the front wheel positioning mechanism and the rear wheel positioning mechanism.

[0016] In an embodiment, the door opening and closing mechanism includes a fixed assembly, a moving door assembly installed on the fixed assembly, and roller assemblies installed on both sides of the moving door assembly, and the axes of the roller assemblies are parallel to the traveling direction of the vehicle.

[0017] In an embodiment, a fire-fighting transfer mechanism is further included, which includes a fire-fighting moving plate assembly connected with a horizontal driving assembly for driving the fire-fighting moving plate assembly to enter or exit the container, and a cover assembly connected with a lifting driving assembly for driving the cover assembly to cover the battery pack, and the cover assembly can move with the battery pack.

[0018] The present application has the following technical effects compared with the prior art:

[0019] The battery pack from the battery rack or the battery pack from the vehicle is temporarily stored by the buffer mechanism, the battery pack is transferred to or from the battery rack by the stacker, and the battery pack is transferred to or from the battery replacement position by the battery replacement trolley, so that the battery pack on the battery rack can be transferred to the stacker, the battery pack from the vehicle on the battery replacement trolley can be transferred to the buffer mechanism, and the battery pack from the battery rack on the stacker can be transferred to the vehicle by the battery replacement trolley; or the battery pack from the battery rack on the stacker can be transferred to the buffer mechanism, the battery pack from the vehicle on the battery replacement trolley can be transferred to the stacker, and the battery pack from the battery rack on the buffer mechanism can be transferred to the vehicle by the battery replacement trolley; the waiting time of the battery replacement trolley can be saved, and the battery replacement efficiency of the vehicle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The present application is a battery replacement station and a battery replacement container.

[0022] Figure 2 The present application is a battery replacement station and a battery replacement container.

[0023] Figure 3 It is RGV trolley schematic view in the embodiment of the utility model;

[0024] Figure 4 It is vehicle ramp schematic view in the embodiment of the utility model;

[0025] Figure 5 It is front wheel positioning mechanism schematic view in the embodiment of the utility model;

[0026] Figure 6 It is rear wheel positioning mechanism schematic view in the embodiment of the utility model;

[0027] Figure 7 It is opening and closing door mechanism schematic view in the embodiment of the utility model;

[0028] Figure 8 It is stacker schematic view in the embodiment of the utility model;

[0029] Figure 9 It is battery rack schematic view in the embodiment of the utility model;

[0030] Figure 10 It is fire-fighting transfer mechanism schematic view in the embodiment of the utility model;

[0031] Figure 11 It is buffer mechanism schematic view in the embodiment of the utility model;

[0032] 1, battery rack, 2, stacker, 3, buffer mechanism, 4, battery replacement trolley, 5, opening and closing door mechanism, 6, front wheel positioning mechanism, 7, rear wheel positioning mechanism, 8, uphill, 9, downhill, 10, fire-fighting transfer mechanism,

[0033] 11, battery compartment,

[0034] 21, loading platform, 22, lifting mechanism, 23, overhead rail, 24, ground rail, 25, bidirectional rail, 26, bidirectional fork, 27, stacker distribution box,

[0035] 31, frame, 32, locking and unlocking assembly,

[0036] 41, rotating base, 42, lifting platform, 43, battery locking and unlocking platform, 44, walking assembly, 45, RGV walking rail, 46, rotating structure assembly, 47, transverse moving assembly, 48, RGV distribution box,

[0037] 51, fixing assembly, 52, roller assembly, 53, movable door assembly,

[0038] 61, roller, 62, transverse moving clamping push plate, 63, V-shaped groove,

[0039] 71, roller, 72, positioning push block,

[0040] 81, limiting roller; 82, anti-skid rib;

[0041] 101, fire-fighting moving plate assembly; 102, cover assembly; 103, horizontal driving assembly; 104, lifting driving assembly;

[0042] 100, A box; 200, B box; 300, C box. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0044] The utility model aims at providing a bottom disc battery replacement system to solve the problems in the prior art, temporarily stores the battery pack from the battery rack or the battery pack from the vehicle by using the buffer mechanism, can save the waiting time of the battery replacement trolley, and thus improves the battery replacement efficiency of the vehicle.

[0045] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0046] As Figures 1-11The utility model provides a kind of chassis battery replacement system, including battery rack 1, stacker 2, battery replacement trolley 4 and buffer mechanism 3, battery rack 1 can be provided with one group or multiple groups, battery rack 1 has multiple battery compartments 11 for storing and charging battery pack. Stacker 2 can transfer battery pack to battery rack 1, or transfer battery pack out of battery rack 1, to be able to charge depleted battery, and full battery after charging can be transferred out of battery rack 1 for application. Battery replacement trolley 4 can use RGV (Rail Guided Vehicle, rail guided vehicle) or AGV (Automated Guided Vehicle, automated guided vehicle), regardless of which way, battery replacement trolley 4 can transfer battery pack to battery replacement position, or transfer battery pack detached from vehicle out of battery replacement position at battery replacement position. The battery replacement position refers to the position where the vehicle is parked stably and positioned to be able to dismount and install battery pack. Buffer mechanism 3 has storage position of battery pack, which can temporarily store battery pack during battery replacement. Buffer mechanism 3 can temporarily store battery pack from battery rack 1 transferred by stacker 2, or temporarily store battery pack from vehicle transferred by battery replacement trolley 4. The former temporarily stored battery pack can be regarded as full battery (not necessarily 100% charged), and full battery can be transferred to vehicle by battery replacement trolley 4. The latter temporarily stored battery pack can be regarded as depleted battery, and depleted battery can be transferred to battery rack 1 by stacker 2.

[0047] The utility model uses buffer mechanism 3 to temporarily store battery pack from battery rack 1 or battery pack from vehicle, uses stacker 2 to transfer battery pack to or from battery rack 1, and uses battery replacement trolley 4 to transfer battery pack to or from battery replacement position. Therefore, battery pack on battery rack 1 can be transferred to stacker 2, battery pack from vehicle on battery replacement trolley 4 can be transferred to buffer mechanism 3, and battery replacement trolley 4 can be used to transfer battery pack from battery rack 1 on stacker 2 to vehicle. Alternatively, battery pack from battery rack 1 on stacker 2 can be transferred to buffer mechanism 3, battery replacement trolley 4 can be used to transfer battery pack from vehicle on stacker 2 to buffer mechanism 3, and battery replacement trolley 4 can be used to transfer battery pack from battery rack 1 on buffer mechanism 3 to vehicle. Regardless of which battery replacement method is used, buffer mechanism 3 can be used to temporarily store battery pack, thereby saving the waiting time of battery replacement trolley 4 and improving the battery replacement efficiency of vehicle.

[0048] In an embodiment, in combination with Figure 3As shown, the battery replacement trolley 4 adopts an RGV trolley, which includes a rotating base 41, a lifting platform 42, and a battery locking and unlocking platform 43, and can be further provided with an RGV distribution box 48 that moves along with the movement of the RGV trolley. The battery locking and unlocking platform 43 is installed on the rotating base 41 through the lifting platform 42, and the rotating base 41 is connected to an RGV running track 45 through a running assembly 44. The rotating base 41 bears the weight of the entire RGV trolley, the lifting platform 42 can adopt a scissor fork type lifting mode or an electric / hydraulic / pneumatic cylinder type lifting mode, and the battery locking and unlocking platform 43 can lock or unlock the battery pack to facilitate smooth transfer. In addition, the battery locking and unlocking platform 43 can be provided with mounting and dismounting tools, which can dismount the battery pack from the vehicle or mount the battery pack to the vehicle. The running assembly 44 can adopt a gear and rack form, for example, the rotating base 41 is provided with a gear connected to a power motor, and the RGV running track 45 is provided with a rack engaged with the gear. In this way, the rotation of the rotating base 41 can be realized by driving the gear to drive the RGV trolley on the RGV running track 45. Of course, the running assembly 44 can also adopt other forms, such as a telescopic cylinder pushing / pulling form, a lead screw nut form, a traction machine traction form, etc.

[0049] In an embodiment, the battery locking and unlocking platform 43 is composed of a vehicle posture measurement mechanism, a vehicle position re-measurement mechanism, an independent lifting mechanism, a vehicle positioning pin mechanism, and an active posture adjustment mechanism, and is connected to the lifting platform 42 through a floating chain. Through the combination of multiple mechanisms, the battery locking and unlocking platform 43 can complete the rotation in X and Y directions, the detection and re-measurement of the battery pack posture, and the locking and unlocking of the battery pack.

[0050] In an embodiment, a rotating structure assembly 46 is further included, which can be installed between the rotating base 41 and the lifting platform 42. The rotating structure assembly 46 can drive the lifting platform 42 to rotate in the horizontal plane, so as to adjust the orientation of the battery locking and unlocking platform 43, so that the battery pack can be adapted to different orientations of the battery mounting position of different vehicles, and the adaptability of the battery replacement trolley 4 is improved.

[0051] In an embodiment, two battery locking and unlocking platforms 43 can be arranged side by side to meet the battery replacement needs of multiple battery packs (two battery packs), and at this time, the RGV trolley becomes a multiple-battery-pack battery replacement RGV trolley capable of simultaneously replacing multiple battery packs. By arranging the battery locking and unlocking platforms 43 side by side, the multiple-battery-pack simultaneous locking and unlocking of the battery packs of the passenger car and the logistics car can be adapted. In addition, in addition to the arrangement of the rotating structure assembly 46, the passive adjustment mode of the battery locking and unlocking platform 43 can be improved to an active posture adjustment mechanism to adapt to single-pack or multiple-pack passenger cars and logistics cars with different designs of the direction of the electrical plug. The active posture adjustment mechanism can include an X-direction adjustment structure and a Y-direction adjustment structure, both of which are provided with telescopic moving structures and wedge-shaped adjustment blocks. The wedge-shaped adjustment blocks can be pushed or pulled in the X-direction or the Y-direction by the telescopic moving structures, thereby adjusting the inclination angle of the battery locking and unlocking platform 43 connected thereto, and finally adjusting the posture of the battery locking and unlocking platform 43 to adapt to the posture of the battery pack in the vehicle.

[0052] In an embodiment, a horizontal moving assembly 47 is further included. The horizontal moving assembly 47 can adopt a telescopic cylinder or a lead screw nut structure. The horizontal moving assembly 47 can connect a fixed end to the rotating base 41 and connect a moving end to the rotating structure assembly 46 or the lifting platform 42. The lifting platform 42 can be driven to move horizontally in a direction perpendicular to the RGV running track 45 by the horizontal moving assembly 47. Thus, the cooperation of the horizontal moving assembly 47, the running assembly 44, and the rotating structure assembly 46 can align the battery locking and unlocking platform 43 with the position of the vehicle for taking and placing the battery pack.

[0053] In an embodiment, in combination with Figure 11 As shown, the buffer mechanism 3 includes a frame 31 and a locking and unlocking assembly 32 connected to the frame 31. The locking and unlocking assembly 32 is used to lock or unlock the battery pack to temporarily store the battery pack or release the battery pack. The frame 31 can be installed below the battery rack 1 and above the foundation pit where the battery replacement trolley 4 moves. When the battery replacement trolley 4 takes the battery pack from the vehicle and places it below the buffer mechanism 3, the locking and unlocking assembly 32 horizontally moves to lock the battery pack, facilitating the mutual transfer of the battery pack between the battery replacement trolley 4 and the buffer mechanism 3.

[0054] In an embodiment, in combination with Figure 8As shown, the stacker 2 includes a loading platform 21, a lifting mechanism 22 and a translation mechanism, and the frame of the stacker 2 can also be provided with a stacker distribution box 27, which provides power supply for the operation of the stacker 2. The loading platform 21 is installed with a fork, which is used to fork the battery pack and transfer the battery pack to the designated position (the battery rack 1, the buffer mechanism 3 or the battery swap trolley 4, etc.) along with the movement of the loading platform 21, or transfer it out from the above-mentioned designated position. The lifting mechanism 22 can adopt a chain lifting structure, a winch lifting mechanism or a telescopic cylinder lifting mechanism, etc. The lifting mechanism 22 can drive the loading platform 21 to rise and fall up and down, so as to adapt to the needs of taking and placing battery packs at different heights. The translation mechanism can include an overhead rail 23 and / or a ground rail 24, and the frame where the lifting mechanism 22 is located can move along the overhead rail 23 and / or the ground rail 24, so as to drive the loading platform 21 to move horizontally, thereby realizing the needs of taking and placing battery packs at different positions in the horizontal direction.

[0055] In an embodiment, a bidirectional rail 25 is further included, which is installed on the loading platform 21, and the fork adopts a bidirectional fork 26, which is installed on the bidirectional rail 25. Therefore, the bidirectional fork 26 can move from one side of the loading platform 21 to the other side, so that the bidirectional fork 26 can fork or place the battery pack through telescopic movement on one side of the loading platform 21, or on the other side of the loading platform 21. In addition, the bidirectional fork 26 can be provided with two in parallel, which can simultaneously fork or place the battery pack on the same side or both sides of the loading platform 21, thereby further improving the efficiency of taking and placing the battery pack.

[0056] In an embodiment, in combination with Figure 5 and Figure 6 As shown, a positioning mechanism is further included, which is used to position the vehicle so that the vehicle is in the battery swap position. The positioning mechanism includes a front wheel positioning mechanism 6 and a rear wheel positioning mechanism 7, which respectively position the front wheel and the rear wheel of the vehicle. The positioning mechanism can adopt an active positioning mode and a passive positioning mode. The former can push the front wheel / rear wheel to move into the battery swap position through the positioning mechanism, and the latter mainly relies on the driving of the vehicle to enter the battery swap position.

[0057] In an embodiment, the front wheel positioning mechanism 6 includes a roller 61 and a transverse clamping push plate 62. The roller 61 is distributed in a V shape and forms a V-shaped groove 63 for accommodating the front wheel, so that the front and rear positions of the vehicle can be directly determined after the front wheel enters the V-shaped groove 63. The transverse clamping push plate 62 can push the front wheel to move transversely by moving perpendicular to the driving direction of the vehicle, thereby determining the transverse position of the vehicle. The rolling direction of the roller 61 is parallel to the moving direction of the transverse clamping push plate 62, which can reduce the resistance of the transverse clamping push plate 62 to push the front wheel to move, and facilitate the transverse movement of the front wheel.

[0058] In an embodiment, the rear wheel positioning mechanism 7 comprises rollers 71 and positioning push blocks 72, the rollers 71 are horizontally distributed and form rolling surfaces for supporting the rear wheels, the rollers 71 can have a long length or be provided in multiple groups in the length direction to adapt to the positioning requirements of the rear wheels of vehicles with different body lengths. The positioning push blocks 72 can push the rear wheels to move laterally by moving perpendicular to the driving direction of the vehicle, thereby determining the lateral position of the vehicle. The rolling direction of the rollers 71 is parallel to the moving direction of the positioning push blocks 72, which can reduce the resistance of the positioning push blocks 72 pushing the rear wheels to move, facilitating the lateral movement of the rear wheels.

[0059] In an embodiment, the rear wheel positioning mechanism 7 comprises rollers 71 and positioning push blocks 72, the rollers 71 are horizontally distributed and form rolling surfaces for supporting the rear wheels, the rollers 71 can have a long length or be provided in multiple groups in the length direction to adapt to the positioning requirements of the rear wheels of vehicles with different body lengths. The positioning push blocks 72 can push the rear wheels to move laterally by moving perpendicular to the driving direction of the vehicle, thereby determining the lateral position of the vehicle. The rolling direction of the rollers 71 is parallel to the moving direction of the positioning push blocks 72, which can reduce the resistance of the positioning push blocks 72 pushing the rear wheels to move, facilitating the lateral movement of the rear wheels. Figure 7 As shown in the figure, the opening and closing door mechanism 5 is installed between the front wheel positioning mechanism 6 and the rear wheel positioning mechanism 7, so that after the front wheels and the rear wheels of the vehicle reach the battery replacement position, the chassis position of the vehicle can face the opening and closing door mechanism 5. When the opening and closing door mechanism 5 is closed, it provides a passage for the vehicle, and when the opening and closing door mechanism 5 is opened, it provides a passage for the RGV trolley. Further, the opening and closing door mechanism 5 can be used to support the movement of the vehicle before battery replacement, so that the vehicle reaches the battery replacement position, and the opening of the opening and closing door mechanism 5 facilitates the transfer of the battery pack between the vehicle and the battery replacement trolley 4 during the battery replacement process.

[0060] In an embodiment, the opening and closing door mechanism 5 comprises a fixed component 51, a moving door component 53 and a roller component 52 installed on the fixed component 51. The fixed component 51 can be fixed to the ground, and the roller component 52 is connected to the container through the fixed component 51. The roller component 52 is located on both sides of the moving door component 53, and the axis of the roller component 52 is parallel to the driving direction of the vehicle. The roller component 52 can define the driving direction of the vehicle, so that the vehicle can enter the designated position to complete the battery replacement, while preventing the vehicle from damaging the structure of the battery replacement station. The opening and closing mode of the opening and closing door mechanism 5 can adopt the sliding door mode, the lifting door mode, etc., as long as it can achieve the above functions. For example, the opening and closing door mechanism 5 is driven by a servo motor to move the chain sprocket and chain, the chain pulls the moving door component 53 to move, and the four-bar linkage mechanism realizes the vertical lifting of the moving door component 53 and the leveling with the fixed component 51.

[0061] In an embodiment, the opening and closing door mechanism 5 comprises a fixed component 51, a moving door component 53 and a roller component 52 installed on the fixed component 51. The fixed component 51 can be fixed to the ground, and the roller component 52 is connected to the container through the fixed component 51. The roller component 52 is located on both sides of the moving door component 53, and the axis of the roller component 52 is parallel to the driving direction of the vehicle. The roller component 52 can define the driving direction of the vehicle, so that the vehicle can enter the designated position to complete the battery replacement, while preventing the vehicle from damaging the structure of the battery replacement station. The opening and closing mode of the opening and closing door mechanism 5 can adopt the sliding door mode, the lifting door mode, etc., as long as it can achieve the above functions. For example, the opening and closing door mechanism 5 is driven by a servo motor to move the chain sprocket and chain, the chain pulls the moving door component 53 to move, and the four-bar linkage mechanism realizes the vertical lifting of the moving door component 53 and the leveling with the fixed component 51. Figure 10As shown, the fire transfer mechanism 10 can transfer the abnormal battery pack from inside the container to outside the container, and transfer the new battery pack from outside the container to inside the container. The fire transfer mechanism 10 includes a fire moving plate assembly 101 connected with a horizontal driving assembly 103, which can drive the fire moving plate assembly 101 to enter and exit the container through an opening provided on the container, and the fire moving plate assembly 101 is used to support the battery pack and move the battery pack under the action of the horizontal driving assembly 103. The fire moving plate assembly 101 is connected with a lifting driving assembly 104, which can drive the fire moving plate assembly 102 to cover the battery pack. After the fire moving plate assembly 102 covers the battery pack, the fire moving plate assembly 102 can move with the battery pack, that is, when the battery pack is transferred to the outside of the container, the fire moving plate assembly 102 remains covered on the battery pack to ensure that the battery pack does not have a serious impact on the inside of the container. The setting of the fire transfer mechanism 10 can not only ensure the safety of the container, but also use the horizontal driving assembly 103 to transport the new battery pack outside the container to the inside of the container, so as to meet the demand of the new battery pack into the warehouse and ensure the normal operation of the battery swap station.

[0062] In an embodiment, the chassis battery swap system includes various mechanisms and devices which can be installed in the container, and can be divided into different containers according to functions and positions, for example, A box 100, B box 200 and C box 300 are divided, wherein the A box 100 is a battery swap channel, which can be provided with an uphill 8, a downhill 9, a front wheel positioning mechanism 6, a rear wheel positioning mechanism 7, an opening and closing door mechanism 5, and a laser line scanning camera, a snapshot system, etc. The B box 200 can be provided with a stacker crane 2 and a battery rack 1, and the battery rack 1 is provided below the buffer mechanism 3 and the fire transfer mechanism 10. The C box 300 can be provided with a battery rack 1 and a charger. The RGV car is hidden in the pit below the A box 100 and the B box 200, so that the process of battery pack replacement is simple and reliable, and the cost is reduced, and the overall performance of the battery swap station is improved. The snapshot system is similar to a gate, which is used to identify vehicles and release, and is arranged at the entrance of the station; the laser line scanning camera is used to scan the characteristic position of the vehicle after the vehicle is parked in the V-shaped groove 63 of the front wheel positioning mechanism 6 and centered, and the visual system calculates the battery position of the vehicle.

[0063] In an embodiment, three groups of battery racks 1 are provided, two groups of battery racks 1 are provided in the B box 200, and one group of battery racks 1 is provided in the C box 300. The stacker crane 2 moves between the battery racks 1 of the B box 200 and the battery racks 1 of the C box 300, and the bidirectional forks 26 on the stacker crane 2 are used to pick and store the battery packs on the battery racks 1 on different sides. There are a total of 46 battery compartments 11 on the battery racks 1, which can increase the number of battery swaps of the battery swap station.

[0064] In an embodiment, the uphill ramp 8 is arranged at the entrance side of the battery replacement channel, and the downhill ramp 9 is arranged at the exit side of the battery replacement channel, and the uphill ramp 8 and the downhill ramp 9 are both provided with anti-skid edges 82 to avoid vehicle skidding, and the uphill ramp 8 can be further provided with limiting rollers 81 which are distributed in a spreader shape to limit the path of the vehicle entering the battery replacement channel, so that the vehicle can accurately enter the battery replacement position.

[0065] The utility model also provides a kind of chassis battery replacement method, can be applied as the chassis battery replacement system recorded in the foregoing, comprising the following contents: according to the different battery pack temporarily stored by buffer mechanism 3, it can be divided into two forms:

[0066] One form is that buffer mechanism 3 temporarily stores battery pack from vehicle:

[0067] Stacker 2 removes battery pack from battery rack 1, and is on standby near buffer mechanism 3 position;

[0068] Battery replacement trolley 4 reaches battery replacement position, and battery replacement trolley 4 transfers battery pack disassembled from vehicle to buffer mechanism 3 temporarily stores;

[0069] Stacker 2 transfers battery pack removed from battery rack 1 to battery replacement trolley 4;

[0070] Battery replacement trolley 4 transfers battery pack to battery replacement position;

[0071] Stacker 2 removes battery pack from vehicle from buffer mechanism 3, and transfers battery pack to battery rack 1.

[0072] Another form is that buffer mechanism 3 temporarily stores battery pack from battery rack 1:

[0073] Stacker 2 removes battery pack from battery rack 1, and transfers battery pack to buffer mechanism 3 temporarily stores;

[0074] Battery replacement trolley 4 reaches battery replacement position, and battery replacement trolley 4 transfers battery pack disassembled from vehicle to buffer mechanism 3 position on standby;

[0075] Stacker 2 transfers battery pack disassembled from vehicle on battery replacement trolley 4 to battery rack 1;

[0076] Battery replacement trolley 4 transfers battery pack removed from battery rack 1 temporarily stored in buffer mechanism 3 to vehicle.

[0077] In an embodiment, when the multi-pack battery replacement is performed, the vehicle to be replaced is identified by the snapshot machine system, enters the battery replacement channel through the ramp 8, and after the front wheels roll the opening and closing door mechanism 5, the front wheels enter the front wheel positioning mechanism 6, and the rear wheels are parked on the rear wheel positioning mechanism 7. The front wheel positioning mechanism 6 and the rear wheel positioning mechanism 7 clamp the tires of the front wheels and the rear wheels respectively to make the vehicle align with the opening and closing door mechanism 5. The laser line scanning camera makes a preliminary judgment on the position of the vehicle, and the moving door assembly 53 of the opening and closing door mechanism 5 is opened in the direction perpendicular to the vehicle driving. At the same time, the stacker 2 starts to take the battery pack from the battery rack 1 and waits near the buffer mechanism 3. When the opening and closing door mechanism 5 is opened to the maximum position, the multi-pack battery replacement RGV car starts to rise, and a plurality of battery packs are disassembled. After the vehicle position measuring mechanism measures the position of the vehicle and the vehicle body posture measuring mechanism measures the posture of the vehicle body, the battery locking and unlocking platform 43 with the floating function is attached to the vehicle chassis, the vehicle body positioning pin is inserted into the vehicle frame, the unlocking mechanism unlocks the battery pack, and the multi-pack battery pack is disassembled to the battery locking and unlocking platform 43. The RGV car transports the disassembled battery pack to the buffer mechanism 3 below and lifts the buffer mechanism 3. The buffer mechanism 3 acts, and the locking and unlocking assembly 32 hangs the battery pack. The RGV car descends to the handover position of the stacker 2. The stacker 2 places the battery pack taken from the battery rack 1 on the battery locking and unlocking platform 43 of the RGV car, and then the RGV car transports the battery pack to the vehicle below. The battery locking and unlocking platform 43 is attached to the vehicle chassis, the vehicle body positioning pin is inserted into the vehicle frame, and then a plurality of battery packs are installed on the vehicle at the same time. After the installation is completed, the RGV car descends, the opening and closing door mechanism 5 is closed, the front wheel positioning mechanism 6 and the rear wheel positioning mechanism 7 are opened, the vehicle drives away from the battery replacement channel, and the battery replacement is completed.

[0078] The principle and implementation mode of the specific examples in the utility model are described, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A battery swap system for a chassis, the system comprising: The application relates to a battery storage system, which comprises: a battery rack for storing battery packs; a stacker for transferring battery packs to or from the battery rack; a battery swap trolley for transferring battery packs to or from a battery swap position of a vehicle; and a buffer mechanism for temporarily storing battery packs transferred by the stacker from the battery rack and transferred by the battery swap trolley to the vehicle, or temporarily storing battery packs transferred by the battery swap trolley from the vehicle and transferred by the stacker to the battery rack.

2. The bottom battery swapping system according to claim 1, characterized in that: The battery swap trolley adopts an RGV trolley, which comprises a walking assembly, a transverse moving assembly, a rotating base, a lifting platform and a battery locking and unlocking platform; the battery locking and unlocking platform is installed on the rotating base through the lifting platform; the rotating base is connected with the walking assembly and the transverse moving assembly on an RGV walking track through the transverse moving assembly; the rotating base is used for driving the lifting platform to rotate in a horizontal plane; and the transverse moving assembly is used for driving the lifting platform to move transversely in a direction perpendicular to the RGV walking track.

3. The bottom battery swapping system according to claim 1, characterized in that: The buffer mechanism comprises a frame and a locking and unlocking assembly connected with the frame, the locking and unlocking assembly is used for locking or unlocking battery packs, and the frame is installed below the battery rack.

4. The bottom battery swapping system according to claim 1, characterized in that: The stacker comprises a loading platform, a lifting mechanism, a translation mechanism and a bidirectional track, the bidirectional track is installed on the loading platform, the loading platform is provided with a fork, the fork is used for picking or placing battery packs, the lifting mechanism is used for driving the loading platform to move up and down, and the translation mechanism is used for driving the loading platform to move horizontally.

5. The bottom battery swapping system according to claim 1, characterized in that: The application further comprises a positioning mechanism, which is used for positioning a vehicle so that the vehicle is in a battery swap position, and the positioning mechanism comprises a front wheel positioning mechanism and a rear wheel positioning mechanism.

6. The bottom battery swapping system according to claim 5, characterized in that: The front wheel positioning mechanism comprises rollers and a transverse clamping push plate, the rollers are distributed in a V shape and form a V-shaped groove for accommodating front wheels, and the transverse clamping push plate is used for pushing the front wheels to move transversely, and the rolling direction of the rollers is parallel to the moving direction of the transverse clamping push plate.

7. The bottom battery swapping system according to claim 5, characterized in that: The rear wheel positioning mechanism comprises rollers and a positioning push block, the rollers are horizontally distributed and form a rolling surface for supporting rear wheels, and the positioning push block is used for pushing the rear wheels to move transversely, and the rolling direction of the rollers is parallel to the moving direction of the positioning push block.

8. The bottom battery swapping system according to claim 5, characterized in that: The application further comprises an opening and closing door mechanism, which is installed between the front wheel positioning mechanism and the rear wheel positioning mechanism. 9.The bottom battery swapping system according to claim 8, characterized in that: The opening and closing door mechanism comprises a fixed assembly, a moving door assembly and a roller assembly installed on the fixed assembly, the roller assembly is located on both sides of the moving door assembly, and the axial direction of the roller assembly is parallel to the advancing direction of the vehicle.

10. The bottom battery swapping system according to claim 1, characterized in that: Further comprising a fire-fighting transfer mechanism, the fire-fighting transfer mechanism comprises a fire-fighting moving plate assembly and a cover assembly, the fire-fighting moving plate assembly is connected with a horizontal driving assembly, the horizontal driving assembly is used for driving the fire-fighting moving plate assembly to enter and exit the container, the fire-fighting moving plate assembly is used for supporting and moving the battery pack, the cover assembly is connected with a lifting driving assembly, the lifting driving assembly is used for driving the cover assembly to cover the battery pack, and the cover assembly can move with the battery pack.

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