Battery charging bin and battery replacing station

Abstract

The battery charging bin comprises a charging frame, the charging frame comprises an overall rectangular outer frame body, a plurality of supporting legs are arranged at the bottom of the outer frame body, and the height of the supporting legs is matched with the ground clearance of a chassis of a vehicle to be subjected to battery replacement. The minimum distance between every two adjacent supporting legs on at least one side is larger than the maximum distance between every two adjacent front and rear wheels on a vehicle to be subjected to battery replacement. The outer frame body is provided with bearing beams which are transversely arranged, the number of the bearing beams is at least two, the bearing beams are arranged at intervals, and a battery rack used for hanging a battery is erected between every two adjacent bearing beams. The device has the advantages of being reasonable in structural design, convenient to operate and use, beneficial to reducing the cost of a battery swap station and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile battery swap station technical field, especially a kind of battery charging bin and battery swap station. BACKGROUND

[0002] With the continuous development of pure electric vehicles, pure electric commercial vehicles are gradually popularized and popularized, and battery replacement becomes the preferred energy supplement method of pure electric commercial vehicles.At present, pure electric commercial vehicles mainly use back-packing type batteries and bottom-hanging type batteries, and back-packing type batteries are usually disassembled or installed by hoisting, which occupies a large transportation space and affects the loading capacity, and its own inertia affects the driving safety.Bottom-hanging type battery is hung under the bottom plate, making full use of the space under the chassis to solve the problems of back-packing type battery.But because the quality of commercial vehicle is heavy, it is not convenient to lift, and its main battery replacement method is to set a trench under the battery replacement position, and there are two setting methods of trench, one is to set battery replacement tool in the trench, and the vehicle is parked on the trench, and the battery replacement tool is used for battery replacement operation.The other is to set a parking platform which is protruding relative to the ground at the battery replacement position, such as the "commercial vehicle chassis battery swap station" disclosed in Chinese patent document, with publication number CN115230645B, the parking platform is provided with a bridge pad which can avoid moving, the bridge pad can move away from the battery charging rack, and the battery replacement robot is used to move between the battery charging rack and the chassis to complete the battery replacement.In order to realize the battery replacement without "trench" structure, the inventor designs an AGV battery replacement robot which can move freely, and uses the tray on the AGV battery replacement robot to lift the battery for battery replacement, since the AGV battery replacement robot can move freely and can disassemble and assemble the battery, the applicant designs a battery charging rack which uses the moving ability and disassembling and assembling ability of AGV battery replacement robot to complete the battery taking and placing, so as to save the configuration of stacking machine, so as to reduce the cost of battery swap station. UTILITY MODEL CONTENTS

[0003] In view of the above technical problems, the utility model solves the technical problems of how to provide a battery charging bin and battery swap station with reasonable structure design, convenient operation and use, and low cost.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The application relates to a battery charging cabin, which comprises a charging frame, wherein the charging frame comprises a whole rectangular outer frame body, the bottom of the outer frame body is provided with a plurality of supporting legs, the height of the supporting legs matches the ground clearance of a vehicle chassis to be replaced with batteries, and the minimum distance between two adjacent supporting legs on at least one side is greater than the maximum distance between two adjacent front and rear wheels on the vehicle to be replaced with batteries; the outer frame body is provided with transversely arranged supporting beams, at least two supporting beams are arranged at intervals, and a battery rack for hanging batteries is arranged between two adjacent supporting beams.

[0006] In the structure, the height of the supporting legs matches the ground clearance of the chassis, and the minimum distance between two adjacent supporting legs on at least one side is greater than the maximum distance between two adjacent front and rear wheels, so that the AGV battery replacement robot adapting to the vehicle chassis can also smoothly move below the outer frame body, and the AGV battery replacement robot can be used to take down the full-battery batteries from the battery rack or hang the batteries to be charged on the battery rack.

[0007] Further, the charging frame is provided with at least two outer frame bodies of the charging frame, and the outer frame bodies of two adjacent charging frames are fixedly connected through bolts.

[0008] In this way, the charging frame can be flexibly assembled according to the site, so that the construction cost is greatly reduced.

[0009] Further, the battery rack is arranged on the supporting beam through a vertically arranged lifting assembly.

[0010] Since the AGV battery replacement robot needs to enter the chassis of a commercial vehicle to replace batteries, the height thereof is limited by the height of the chassis, and the maximum lifting height is also greatly limited. Generally, the maximum height of the AGV battery replacement robot itself is less than the minimum ground clearance of the batteries hung on the chassis, the maximum height of the AGV battery replacement robot loaded with batteries matches the height of the chassis, so that the AGV battery replacement robot can move below the chassis after loading the batteries, and the empty AGV battery replacement robot can also smoothly pass below the batteries and move out from below the chassis after replacing the batteries. However, in the battery charging cabin, there are a plurality of battery racks, the height of the battery racks is close to the height of the batteries hung on the chassis due to the adaptation design of the height of the outer frame body according to the height of the chassis, so that the empty AGV battery replacement robot can smoothly pass through the bottom of the battery charging cabin, and the lifting height of the AGV battery replacement robot can also be suitable for the replacement of the batteries in the battery charging cabin. However, when the AGV battery replacement robot is loaded with batteries, the overall height of the AGV battery replacement robot is higher than the bottom of the batteries hung on other battery racks due to the batteries, so that interference is caused. The battery rack is arranged on the supporting beam through the lifting assembly, the battery rack is integrally lifted relative to the supporting beam, the bottom height of the hung batteries is lifted, so that the interference between the AGV battery replacement robot loaded with batteries and the batteries hung on the battery rack can be avoided, and the smooth passing of the AGV battery replacement robot is ensured.

[0011] Further, the battery rack and the supporting beam or the lifting assembly have an elastic floating assembly that can be vertically contracted.

[0012] When the battery is hung, in order to make all the locking mechanisms on the battery fully cooperate with the locking structure, the battery needs to be lifted as much as possible upward, at this time, the battery rack will be affected by the upward force and move upward, and the battery rack will adaptively adjust the posture to fit the top of the battery, so that all the locking mechanisms cooperate with the locking structure on the battery rack to the right position, so as to be reliably locked. Through the elastic floating assembly, the battery rack has a moving space, so that the battery can be prevented from being directly squeezed on the battery rack during lifting and causing damage, which is beneficial to prolong the service life of the battery and reduce the safety risk. After the battery is hung, the battery rack is reset again by using the gravity of the battery itself.

[0013] Further, the supporting beam has a vertically arranged guide rod, the battery rack includes a base arranged along the length direction of the supporting beam and a hanger for hanging the battery, the base has a clearance hole corresponding to the guide rod, and the guide rod is arranged in the clearance hole; the elastic floating assembly is an adjusting spring sleeved on the guide rod, and the two ends of the adjusting spring are arranged between the base and the supporting beam.

[0014] Further, the adjusting spring is sleeved on one end of the guide rod penetrating through the clearance hole, and the upper end of the guide rod is detachably fixedly installed with a baffle, and the adjusting spring is abutted between the base and the baffle.

[0015] In this way, the guide rod and the baffle are installed on the supporting beam and remain fixed as a whole, during lifting the battery, the battery rack is affected by the upward thrust, and moves upward along the guide rod and squeezes the adjusting spring sleeved on the guide rod through the clearance hole, so as to realize stable floating adjustment. After the hanging is completed, the adjusting spring exerts a downward force on the battery rack, so that the battery rack can be reset smoothly under the action of the gravity of the battery and the spring force.

[0016] Further, the supporting beam has a vertically arranged guide column, and the upper end of the guide column is tapered; the base has a guide hole corresponding to the guide column, and the inner diameter of the guide hole matches the outer diameter of the guide column.

[0017] Further, the lifting assembly is an electric lifting cylinder symmetrically arranged at both ends of the base, the hanger has a support corresponding to the lifting assembly, and the top of the support is installed on the upper end of the lifting assembly.

[0018] Further, the battery rack has charging connectors corresponding to the charging holes of the battery; the battery rack has cooling liquid connectors corresponding to the cooling liquid holes of the battery; and the battery rack has a sensor for detecting the state of the locking structure.

[0019] A battery charging station comprises the battery charging cabin as described above.

[0020] In conclusion, the utility model has the advantages of reasonable structure design, convenient operation and use, and low cost of the battery charging station. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure diagram of the battery charging cabin and the battery changing robot in the embodiment.

[0022] Figure 2 It is a structure diagram of the battery charging cabin. Figure 1

[0023] Figure 3 It is a structure diagram of the charging rack and the battery changing robot.

[0024] Figure 4 It is a structure diagram of the hanging battery state of the supporting beam and the battery rack.

[0025] Figure 5 It is a connection structure diagram of the T-shaped hanging rod structure and the strip-shaped hole on the battery module.

[0026] Figure 6 It is a structure diagram of the supporting beam and the battery rack.

[0027] Figure 7 It is a structure diagram of the single battery rack and the supporting beam.

[0028] Figure 8 It is a cross-sectional structure diagram of the battery rack and the supporting beam.

[0029] Figure 9 It is a whole structure diagram of the AGV battery changing robot.

[0030] Figure 10 It is a structure diagram of the bracket with two supporting plates in the embodiment.

[0031] Figure 11 It is a structure diagram of the bracket with one supporting plate in the embodiment.

[0032] Figure 12 It is a structure diagram of the walking mechanism.

[0033] Figure 13 It is a cross-sectional structure diagram of the linear telescopic mechanism and the steel ball locking mechanism. DETAILED DESCRIPTION​

[0034] The utility model discloses make further detailed description to the utility model in combination with a kind of battery swap station using the structure of the utility model.

[0035] Specific implementation time: as Figures 1-13 As shown in a kind of battery swap station, including battery charging bin and AGV battery swap robot, the battery charging bin includes charging rack 1, the charging rack includes the outer frame body 11 that is overall rectangular, the bottom of the outer frame body 11 is provided with multiple supporting legs, the height of the supporting leg is matched with the ground clearance of the vehicle chassis to be swapped battery, and the minimum spacing of at least one side on adjacent two supporting legs is greater than the maximum spacing of adjacent two front and rear wheels on the vehicle to be swapped battery;The outer frame body 11 has transversely arranged supporting beam 12, at least two supporting beams 12 are spaced apart, and a battery rack 13 for hanging battery is arranged between adjacent two supporting beams 12.The AGV battery swap robot includes the carrier 21 that is overall rectangular, the bottom of the carrier 21 is provided with the traveling mechanism 22 for driving the horizontal movement of the carrier 21, the middle part of the carrier 21 has the recess or hollowly arranged battery bin, the battery bin is horizontally provided with the supporting plate 23 for loading battery and the vertical lifting mechanism 24, the lifting mechanism 24 is arranged on the outer side of the supporting plate 23, and the edge of the supporting plate 23 is hung on the upper end of the lifting mechanism 24 by the upwardly extending supporting mechanism;The lowest height of the supporting plate 23 and the thickness of battery are less than the battery replacement spacing between the vehicle chassis to be swapped battery and ground in the battery replacement state.

[0036] Since the middle part of the carrier is recessed or hollowly arranged battery bin, and the edge of the supporting plate in the battery bin is hung on the upper end of the lifting mechanism by the upwardly extending supporting mechanism, the supporting plate can sink to the bottom of the battery bin, the height of battery in the battery replacement process is reduced, so that the AGV battery swap robot can smoothly enter the vehicle chassis below for battery replacement. The height of the supporting leg is matched with the ground clearance of the vehicle chassis, and the minimum spacing of at least one side on adjacent two supporting legs is greater than the maximum spacing of adjacent two front and rear wheels, so that the AGV battery swap robot adapted to the vehicle chassis can also be smoothly moved below the outer frame body.

[0037] Generally, in order to facilitate the disassembly and assembly of the battery, there are mainly two kinds of locking structures between the battery and the chassis. One is to integrate the unlocking mechanism on the chassis, and the supporting plate 23 only needs to top the battery module in place, and the battery module is locked by the unlocking mechanism on the chassis. The other is to pass through the locking hanging rod on the battery module, which can be directly rotated and disassembled from the bottom, and the top of the locking hanging rod is connected with the chassis by rotating the locking hanging rod. The locking hanging rod and the chassis can be threadedly connected, or as Figure 5The structure shown, a cross-shaped crossbar is arranged at the top of the locking hanging rod, a strip-shaped hole is arranged on the chassis, after the crossbar of the locking hanging rod is inserted through the strip-shaped hole, the locking hanging rod is rotated by 90°, and the battery module can be hung on the chassis. Therefore, in specific implementation, for the case that the locking hanging rod is arranged on the battery module, the tray 23 also has a locking and unlocking mechanism corresponding to the locking hanging rod of the battery module to be replaced, so that the AGV battery replacement robot can smoothly complete the disassembly and installation of the battery. Correspondingly, the battery rack 13 also has a locking structure (such as a strip-shaped hole) consistent with the battery module to be replaced, which facilitates the hanging of the battery.

[0038] When replacing the battery, the AGV battery replacement robot moves horizontally under the battery module to be replaced by using the walking mechanism, aligns with the battery, and then lifts the tray to the bottom of the battery by using the lifting mechanism. At this time, the battery on the chassis is disassembled by using the locking and unlocking mechanism on the tray 23 and is placed on the tray 23; the tray 23 is lowered to the lowest position by the lifting mechanism, and the walking mechanism is used to move horizontally to the bottom of the battery charging bin to find an empty battery rack; the tray is lifted to the bottom of the battery rack by using the lifting mechanism, and the battery is installed on the locking mechanism on the battery rack 13 by using the locking and unlocking mechanism on the tray 23. The tray 23 is lowered to the lowest position again, and is moved horizontally to the bottom of the battery rack loaded with the battery, and the tray 23 is lifted to the bottom of the battery, and the battery is disassembled from the battery rack 13 by using the locking and unlocking mechanism and is placed on the tray 23. After the tray 23 loaded with the battery is lowered to the lowest position, it is moved horizontally to the bottom of the chassis, the battery is lifted to the bottom of the chassis, and the installation is completed by using the locking and unlocking mechanism, so as to complete the battery replacement operation.

[0039] In order to improve the efficiency of battery replacement, two AGV battery replacement robots can be used to operate synchronously in specific implementation. When one AGV battery replacement robot enters the chassis to disassemble the battery to be charged, the other AGV battery replacement robot enters the battery charging bin to take the full battery, so as to greatly improve the efficiency of battery replacement.

[0040] In order to enable the AGV battery replacement robot to accurately position the battery hanging position on the chassis and the battery rack, the tray 21 has an upward visual positioning mechanism, and the visual positioning mechanism is used to position the target position of the battery.

[0041] Since the distance between the vehicle chassis and the ground is low, in order to enable the AGV battery replacement robot to smoothly enter and exit the chassis on the flat ground, the height of the AGV battery replacement robot is also limited. Generally, the maximum height of the AGV battery replacement robot is less than the minimum ground clearance of the battery hanging on the chassis in the battery replacement state. The maximum height of the AGV battery replacement robot loading the battery is adapted to the height of the chassis, so that the AGV battery replacement robot can move to the bottom of the chassis after loading the battery, and the empty AGV battery replacement robot can also smoothly pass under the battery and move out from under the chassis after replacing the battery. In order to enable the AGV battery replacement robot to lift the battery to the hanging position on the chassis, it is necessary to increase the maximum lifting height of the lifting mechanism 24 as much as possible. Therefore, the lifting mechanism 24 adopts a multi-stage electric cylinder arranged vertically.

[0042] However, in the battery charging bin, there are multiple groups of battery racks. Since the height of the outer frame body is designed to adapt to the height of the chassis, the height of the battery hanging on the battery rack is also similar to the height of the battery hanging on the chassis. In this way, the AGV battery replacement robot in the empty state can smoothly pass through the bottom of the battery charging bin, and the lifting height of the AGV battery replacement robot can also be adapted to the replacement of the battery in the battery charging bin. However, in the case of loading the battery, the overall height of the AGV battery replacement robot will be higher than the bottom of the battery hanging on the other battery racks (i.e. the minimum ground clearance of the battery), thereby forming an interference, which cannot enable the AGV battery replacement robot to smoothly walk at the bottom of the battery charging bin. If the height of the battery rack is directly designed to be higher, in order to adapt to the height of the battery rack, the lifting stroke of the lifting mechanism 24 needs to be further increased. On the one hand, this will greatly increase the cost of the lifting mechanism 24, and on the other hand, it will also reduce the stability of the lifting mechanism 24. With the increase of the number of uses, the positioning accuracy will also gradually decrease. The decrease of the positioning accuracy increases the difficulty of dismounting and installing the battery. Therefore, in the present embodiment, the battery rack 13 is erected on the supporting beam 12 through the vertically arranged lifting assembly 14. The battery rack is erected by the lifting assembly. When dismounting and installing the battery, the height of the battery rack can be matched with the height of the chassis by lowering the battery rack through the lifting assembly, so as to facilitate the dismounting and installing operation of the battery on the battery rack by the AGV battery replacement robot. When the battery is charged, the battery rack is lifted as a whole through the lifting assembly, so that the height of the hanging battery is increased, thereby avoiding the interference between the AGV battery replacement robot loaded with the battery and the battery hanging on the battery rack, and ensuring the smooth passing of the AGV battery replacement robot, as shown in Figure 4 One group of battery racks 13 is lifted under the action of the lifting assembly 14, thereby increasing the bottom space.

[0043] In order to make all the locking mechanisms between the battery and the battery holder fully cooperate in place when the battery is hung, the battery needs to be lifted as much as possible upward, if there is an inclined angle between the cooperation surface between the battery and the battery holder, the part first contacted by the two will be extruded, which is easy to cause damage to the battery. In order to enable the battery holder to be adaptively adjusted, the battery holder 13 and the supporting beam 12 or the lifting assembly 14 have a vertically contractible elastic floating assembly 15. In the embodiment, the supporting beam 12 has a vertically arranged guide rod 121, the battery holder 13 includes a base 131 arranged on the supporting beam 12 in the length direction and a hanging rack 132 for hanging the battery, the base 131 has a clearance hole corresponding to the guide rod 121, and the guide rod 121 is arranged in the clearance hole; the elastic floating assembly 15 is an adjusting spring sleeved on the guide rod 121, and the two ends of the adjusting spring act between the base 131 and the supporting beam 12. In this way, when the battery holder is subjected to an upward force, the battery holder will act on the elastic floating assembly and move upward, and the battery holder will adaptively adjust the posture to fit the top of the battery during the upward movement, so that all the locking mechanisms cooperate with the locking structures on the battery holder to be in place, so as to be reliably locked. Through the elastic floating assembly, the battery holder has a moving space, so that the battery can be prevented from being directly extruded on the battery holder during the lifting process and damaged, which is beneficial to prolong the service life of the battery and reduce the safety risk. After the battery is hung, the battery holder is reset again by using the gravity of the battery itself.

[0044] Specifically, the adjusting spring is sleeved on one end of the guide rod 121 penetrating through the clearance hole, the upper end of the guide rod 121 is detachably fixedly installed with a baffle 124, and the adjusting spring 123 abuts between the base 131 and the baffle 124, as shown in Figure 8 The guide rod and the baffle are installed on the supporting beam and remain fixed as a whole, during the lifting of the battery, the battery holder is subjected to an upward thrust, and moves upward along the guide rod as a whole and extrudes the adjusting spring sleeved on the guide rod, so as to realize stable floating adjustment. After the hanging is completed, the adjusting spring exerts a downward force on the battery holder, so that the battery holder can be reset smoothly under the action of the gravity of the battery itself and the spring force.

[0045] In addition, the supporting beam 12 has a vertically arranged guide column 122, the upper end of the guide column 122 is tapered; the base 131 has a guide hole corresponding to the guide column 122, and the inner diameter of the guide hole matches the outer diameter of the guide column.

[0046] The lifting assembly 14 consists of electrically operated lifting cylinders symmetrically arranged at both ends of the base 131. The bracket 132 has a support member 134 corresponding to the lifting assembly 14, with the top of the support member 134 mounted on the upper end of the lifting assembly 14. The bracket 132 comprises a rectangular frame, and the support member 134 is a vertically arranged support column on the frame. The top of the support column has a horizontally protruding support portion, and the upper end of the lifting assembly 14 is mounted on the support portion.

[0047] In practice, in order to enable the battery to quickly enter the charging state, the battery rack 13 has a charging connector corresponding to the charging port of the battery; the battery rack 13 has a coolant connector corresponding to the coolant hole of the battery; and the battery rack 13 has a sensor for detecting the state of the locking structure.

[0048] Inside the charging station, at least two charging racks 1 are provided, such as... Figure 1 As shown, the outer frames 11 of two adjacent charging racks 1 are fixedly connected by bolts. They can also be distributed on both sides of the battery swapping channel. This allows for flexible assembly of the charging racks according to the site conditions, thereby significantly reducing construction costs.

[0049] like Figures 9-11 As shown, the walking mechanism 22 includes a suspension 221 laterally mounted on a bracket 21. An electric drive assembly is mounted on the suspension 221, and the output end of the electric drive assembly is connected to a walking wheel 222. The bottom of the bracket 21 has a clearance opening corresponding to the walking wheel 222. The walking wheel 222 can be a Mecanum wheel, an omnidirectional wheel, or a steering wheel. The electric drive assembly includes a drive motor. This allows the AGV battery-swapping robot to move in all directions.

[0050] like Figure 12 As shown, one end of the suspension 221 is rotatably mounted on the bracket 21 via a horizontally arranged hinge, and the other end has a portal bracket 223 spanning the suspension 221. The lower end of the portal bracket 223 is fixed on the bracket 21. The suspension 221 is connected to the portal bracket 223 via a vertically inserted screw. A spring 224 is sleeved on the screw, and the two ends of the spring 224 abut against the suspension 221 and the portal bracket 223 respectively.

[0051] In the case of uneven self-weight distribution or external reasons such as suspension, there is a case that an inclination angle is formed between the chassis and the ground. During the battery replacement process, especially during the battery installation, the position of the battery that first contacts the chassis under the lifting action of the lifting mechanism 24 will be extruded. At this time, the corresponding position of the AGV battery replacement robot will be subjected to a reverse pressure, and the spring located on that side will contract to adapt to the angle matching between the battery and the chassis. This can not only avoid damage to the battery due to hard extrusion, but also increase the battery replacement efficiency.

[0052] In specific implementation, due to the influence of the wheelbase of the vehicle type, it is not possible to ensure that all vehicles use unified batteries. However, in the case of the same series of commercial vehicles, the body width is consistent, and only the wheelbase is different. In order to improve the universality of the battery and reduce production costs, the battery is designed in a modular manner. The battery capacity can be combined by the number of modules or adjusted according to the length. For vehicles with a smaller wheelbase, the number of modules or the length size can be reduced, or the battery modules can be installed in a dispersed manner. For vehicles with a longer wheelbase, multiple modules or increased length size can be used. In order to meet the battery replacement needs of vehicles with different wheelbases, the AGV battery replacement robot can also be designed with the smallest module. As shown in the figure, the carrier 21 is detachably arranged side by side in the width direction, and the side surface of any one of the two adjacent carriers 21 is provided with a protruding plug structure, and the side surface of the other carrier 21 is provided with a plug hole structure corresponding to the plug structure. The two carriers 21 are detachably connected by the plug structure and the plug hole structure.

[0053] In this embodiment, considering that three battery modules or longer battery packs are configured for long-wheelbase vehicles, and two battery modules or shorter battery packs are configured for short-wheelbase vehicles, the carrier 21 is detachably arranged side by side in the width direction. The size of the support plate 23 matches the size of a single battery module. One of the carriers 21 is provided with one support plate 23 in the battery compartment, and the other carrier 21 is provided with two support plates 23 arranged side by side in the battery compartment. Each support plate 23 is provided with two lifting mechanisms 24 at both ends, and each lifting mechanism 24 is connected to the support plate 23 through a ball hinge structure. That is, each support plate 23 is supported by four lifting mechanisms 24 at the four corners, and the lifting height of each lifting mechanism can be adjusted to adjust the horizontal attitude of the support plate, that is, the horizontal attitude of the battery module, so that the horizontal attitude of the battery module can be adapted to the horizontal attitude of the chassis, thereby reliably replacing the battery.

[0054] The plug-in structure includes a positioning column 251 and a locking column 261, and the plug-in hole structure includes a positioning hole 252 and a locking hole 262, the inner diameter of the positioning hole 252 matches the diameter of the positioning column 251, and the outer end has a horn-shaped guide hole; the locking column 261 and the locking hole 262 have mutually matched spiral locking surfaces or mutually matched steel ball locking mechanisms, and the locking column 261 or the locking hole 262 is provided with a rotary driving mechanism for driving relative rotation locking or a linear extension mechanism for locking or unlocking the steel ball locking mechanism.

[0055] In this embodiment, the steel ball locking mechanism is used between the locking column 261 and the locking hole 262, as shown in the figure. Figure 13 As shown, the steel ball locking mechanism includes a clamping sleeve 263 arranged in the locking hole 262, the outer diameter of the clamping sleeve 263 matches the inner diameter of the locking hole 262, and the clamping sleeve 263 is axially movably sleeved in the locking hole 262; the diameter of the locking column 261 matches the inner diameter of the clamping sleeve 263, and the locking column 261 can be coaxially inserted into the clamping sleeve 263; the clamping sleeve 263 has a clamping hole arranged in the radial direction, and a plurality of clamping holes are uniformly arranged along the circumference of the clamping sleeve 263, and a steel ball 264 is arranged in the clamping hole; the locking column 261 has a clamping groove 265 arranged in a ring shape along the circumference, the diameter of the steel ball 264 is greater than the wall thickness of the clamping sleeve 263, and the difference between the two matches the depth of the clamping groove 261; the outer end of the locking hole 262 has a larger unlocking cavity in diameter, so that the steel ball 264 on the clamping sleeve 263 can be radially retracted into the unlocking cavity at the unlocking cavity; the extension end of the linear extension mechanism is connected to the clamping sleeve 263 in the axial direction.

[0056] In this way, the clamping sleeve is moved in the axial direction of the locking hole by the linear extension mechanism, and before locking, the steel ball is moved to the position where the unlocking cavity is located, the locking column is inserted into the clamping sleeve, the steel ball is radially retracted into the unlocking cavity during the process, and after the locking column is coaxially inserted into the clamping sleeve, the clamping sleeve is moved towards the inside of the locking hole by the linear extension mechanism, at this time the locking column also moves, because the outer diameter of the clamping sleeve matches the inner diameter of the locking hole, the steel ball moves towards the inside of the clamping sleeve under the action of the inner wall of the locking hole, and enters the clamping groove, at this time the clamping sleeve and the locking column are connected under the action of the steel ball and the clamping groove. The linear extension mechanism further pulls the clamping sleeve towards the inside of the locking hole, so as to tighten the locking column, thereby tightly fixing and connecting the two brackets.

[0057] As shown in Figure 10 and Figure 11As shown, the bracket 21 is provided with an electric control system for controlling the walking mechanism 22 and the lifting mechanism 24; the side of any one of the two adjacent brackets 21 is provided with an electrical plug 271, and the side of the other bracket 21 is provided with an electrical socket 272 corresponding to the electrical plug 271; the electrical plug 271 and the electrical socket 272 are respectively connected to the corresponding electric control system, and the electric control systems of the two brackets 21 are detachably connected through the electrical plug 271 and the electrical socket 272. In this way, the electric control systems of the two adjacent brackets are detachably connected through the electrical plug 271 and the electrical socket 272, which can meet the independent control of a single bracket and the synchronous control of the combined brackets.

[0058] In order to enable the brackets 21 to be automatically assembled, the bracket 21 is provided with a positioning module capable of determining the relative positions between the brackets 21, and the positioning module is connected to the electric control system, so that the bracket 21 can be moved to the mutual assembling position by using the positioning module, thereby realizing automatic operation.

[0059] Further, the side of the bracket 21 is also provided with a visual positioning module for detecting the position of the pin structure or the socket structure on the other bracket 21, so that the bracket 21 can more accurately find the assembling position on the basis of the positioning module.

[0060] The above is only a preferred embodiment of the present application, and is not limited to the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery charging pod, characterized by, The charging rack (1) comprises an overall rectangular outer frame body (11), the bottom of the outer frame body (11) is provided with a plurality of legs, the height of the legs matches the ground clearance of the vehicle chassis to be replaced, and the minimum distance between adjacent two legs on at least one side is greater than the maximum distance between adjacent two front and rear wheels on the vehicle to be replaced; the outer frame body (11) is provided with transversely arranged supporting beams (12), at least two supporting beams (12) are arranged at intervals, and a battery rack (13) for hanging batteries is arranged between adjacent two supporting beams (12).

2. The battery charging pod of claim 1, wherein, The charging rack (1) is provided with at least two outer frame bodies (11) of adjacent two charging racks (1) which are fixedly connected by bolts.

3. The battery charging pod of claim 1, wherein, The battery rack (13) is arranged on the supporting beam (12) by a vertically arranged lifting assembly (14).

4. The battery charging enclosure of claim 3, wherein, The battery rack (13) and the supporting beam (12) or the lifting assembly (14) have a vertically retractable elastic floating assembly (15) therebetween.

5. The battery charging enclosure of claim 4, wherein, The supporting beam (12) is provided with a vertically arranged guide rod (121), the battery rack (13) comprises a base (131) arranged along the length direction on the supporting beam (12) and a hanger (132) for hanging batteries, the base (131) is provided with a clearance hole corresponding to the guide rod (121), and the guide rod (121) penetrates the clearance hole; the elastic floating assembly (15) is an adjusting spring sleeved on the guide rod (121), and the two ends of the adjusting spring act between the base (131) and the supporting beam (12), respectively.

6. The battery charging enclosure of claim 5, wherein, The adjusting spring is sleeved on one end of the guide rod (121) penetrating the clearance hole, and the upper end of the guide rod (121) is detachably fixedly installed with a baffle (124), and the adjusting spring abuts between the base (131) and the baffle (124).

7. The battery charging enclosure of claim 6, wherein, The supporting beam (12) is provided with a vertically arranged guide column (122), and the upper end of the guide column (122) is tapered; the base (131) is provided with a guide hole corresponding to the guide column (122), and the inner diameter of the guide hole matches the outer diameter of the guide column.

8. The battery charging enclosure of claim 7, wherein, The lifting assembly (14) is an electric lifting cylinder symmetrically arranged at both ends of the base (131), the hanger (132) is provided with a support (134) corresponding to the lifting assembly (14), and the top of the support (134) is installed on the upper end of the lifting assembly (14).

9. The battery charging pod of claim 1, wherein, The battery rack (13) is provided with a charging plug corresponding to the charging hole of the battery; the battery rack (13) is provided with a cooling liquid plug corresponding to the cooling liquid hole of the battery; and the battery rack (13) is provided with a sensor for detecting the state of the locking structure.

10. A battery swap station, characterized by, The battery charging warehouse comprises the battery charging warehouse according to any one of claims 1-9.

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