Battery replacement equipment

Abstract

The utility model relates to the technical field of battery replacement, and discloses battery replacement equipment which comprises a fixedly arranged supporting frame, a battery replacement main body which is arranged between the supporting frames and can move up and down, and a battery replacement device which is arranged in the battery replacement main body and can telescopically move towards the outside of the supporting frames. The battery replacing device further comprises two independent lifting driving mechanisms arranged on the two sides of the battery replacing body respectively, each lifting driving mechanism comprises a lifting motor, the supporting frame comprises a plurality of stand columns arranged on the periphery of the battery replacing body, each stand column is provided with a balancing weight capable of vertically moving, and the balancing weights are connected with the battery replacing body on the corresponding side through chains. A chain wheel in matched transmission with the chain on the side of each stand column is arranged above the stand column, and the lifting motor drives the synchronizing shaft to rotate so as to simultaneously drive the two chains on the same side of the battery replacing body to drive the battery replacing body to vertically move. Each stand column is provided with a balancing weight, a chain and a chain wheel which are connected with the battery replacing body on the corresponding side, and synchronous lifting of the battery replacing body on the same side is achieved.

Description

[0001] This application claims priority to Chinese patent application No. 202410380046.4, filed on March 29, 2024. This application incorporates the entirety of the aforementioned patent application. Technical Field

[0002] The present application relates to the field of battery replacement technology, and specifically to a battery replacement device. Background Art

[0003] With the development and popularization of new energy vehicles, battery pack quick-swap technology has also developed rapidly. For large vehicles, such as heavy trucks and light trucks, the heavy weight of the body and cargo leads to higher battery pack capacity requirements, requiring a sufficiently large capacity of electricity to support the operation of large vehicles.

[0004] In traditional battery swapping, large new energy vehicles use a top-lift method to secure large battery containers to the vehicle's beams. These containers are located close to the cab, posing significant safety risks to both the driver and the vehicle during operation and during top-lift battery swapping. Furthermore, battery failures can directly harm the driver. Furthermore, the top-lift method places high demands on the site for battery swap stations, requiring sufficient space for lifting equipment to transport and store batteries, resulting in high construction costs.

[0005] Therefore, for large vehicles, there is an urgent need for a safer, more reliable and easy-to-popularize battery swap mode. For example, a chassis-type battery swap mode for passenger cars is adopted. In the chassis-type battery swap mode, it is necessary to control the battery swap equipment to move as a whole to the battery swap position under the battery swap vehicle, and then perform lifting operations and remove or install battery pack operations to complete the entire battery swap process. In this battery swap process, due to the limited underground space of the battery swap vehicle, especially heavy truck battery swap vehicles, which are difficult to drive and park on platforms above the ground, the bottom space of the battery swap vehicle is more limited. If a battery swap device is used for battery swapping, the battery swap device needs to carry the depleted battery pack or the fully charged battery pack to move back and forth and in and out of the bottom of the battery swap vehicle during the battery swap process. In order to meet the power requirements of heavy truck battery swap vehicles, the battery packs are very large, which leads to a great restriction on the available space for the battery swap equipment. At this time, if you want to increase the available space for the battery swapping equipment, you can only move the battery swapping equipment in the space sunken from the ground. Due to the multiple driving of heavy-duty battery swapping vehicles before and after battery swapping, the ground structure under this method will inevitably become unreliable and difficult to bear the multiple loads of the battery swapping vehicles, reducing the life of the equipment structure and posing a safety hazard to the battery swapping vehicles.

[0006] In addition, since the body of the battery-swapping vehicle may deflect when it stops for battery swapping, the battery-swapping device may not be accurately aligned with the battery-swapping vehicle at the battery swapping position. On the one hand, this may cause the battery-swapping device to be unable to align with the battery pack for disassembly and assembly, making it difficult to disassemble and assemble the battery pack. On the other hand, it may cause the placement of the disassembled battery pack on the battery-swapping device to be offset, resulting in unbalanced force on the battery-swapping device during subsequent battery pack transportation, making transportation unstable, and the offset of the battery pack may make it impossible to accurately align with the battery compartment. Moreover, when the battery-swapping device carries a depleted battery pack or a fully charged battery pack and moves back and forth during the battery swapping process, due to the large size and certain weight of the battery pack, if the battery-swapping device shakes during transportation, it is necessary to ensure the stable movement of the battery-swapping device carrying the battery pack to ensure stable carrying and transportation of the battery pack.

[0007] This shows that the many drawbacks of the prior art need to be further improved and enhanced. Utility Model Content

[0008] The present application provides a battery replacement device to solve at least one of the above technical problems.

[0009] The technical solutions adopted in this application are:

[0010] A battery exchange device comprises: a fixed support frame, a battery exchange body arranged between the support frames and capable of being raised and lowered, and a battery exchange device arranged in the battery exchange body and capable of being telescopically moved to the outside of the support frame, wherein the battery disassembly and assembly of the battery exchange vehicle and / or the battery transfer operation between the battery compartment positions of the battery rack are realized through the telescopic movement of the battery exchange device and the lifting and lowering movement of the battery exchange body; the battery exchange device also comprises two independent lifting drive mechanisms respectively arranged on both sides of the battery exchange body, the lifting drive mechanism comprises a lifting motor, the support frame comprises a plurality of columns arranged around the battery exchange body, each of the columns is provided with a vertically movable counterweight block, the counterweight block is connected to the battery exchange body on its corresponding side through a chain, and a sprocket is provided above each column for transmission in cooperation with the chain on its side, and the lifting motor drives the synchronous shaft to rotate, thereby simultaneously driving the two chains located on the same side of the battery exchange body to drive the battery exchange body vertically.

[0011] The battery-exchange body can be raised and lowered on the support frame to adjust the height of the battery-exchange device. When it is necessary to remove and install the battery, it is adjusted to the height corresponding to the vehicle chassis and then extended. When it is necessary to put a low-power battery into the battery compartment for charging or to take out a fully charged battery from the battery compartment, it is adjusted to the height corresponding to the battery compartment and then extended to take and place the battery, thereby realizing battery disassembly and assembly operations on the battery-exchange vehicle and / or battery transfer operations between the battery compartment positions of the battery rack. Two independent lifting drive mechanisms are set to independently control the lifting height on both sides of the battery-exchange body, so that the battery-exchange body can be tilted. In actual operation, the chassis of the tram may have a certain tilt angle and is not horizontal. In order to adapt to the tilt angle of the tram chassis, the tilt angle of the extended part of the battery-exchange device needs to be adjusted. By independently controlling the lifting height on both sides of the battery-exchange body, the purpose of tilting the compartment is achieved. When the compartment is tilted, the battery-exchange device in the compartment is at the same tilt angle as the compartment, and the extended part can fit well with the tram chassis for battery removal and transfer.

[0012] The lifting motor drives the synchronous shaft to rotate, thereby simultaneously driving the two chains on the same side of the battery-swapping body to move the battery-swapping body vertically, controlling the height and tilt angle of the battery-swapping device, and performing precise battery-swapping operations in accordance with the vehicle chassis. By providing a counterweight, chain, and sprocket at each column and connecting them to the battery-swapping body on the corresponding side, the battery-swapping body can be lifted and lowered synchronously on the same side. The counterweight is provided to enhance the lifting and moving stability of the battery-swapping body, reduce the vibration and oscillation of the battery-swapping equipment during the lifting process, prevent deviation, and ensure that the lifting drive mechanism and the battery-swapping body maintain stable and balanced lifting within the specified range.

[0013] The counterweight block is located on the end side adjacent to or on the opposite side of the battery exchange body.

[0014] The counterweight can be placed in two locations: one on the side adjacent to the battery swap unit to facilitate transport of batteries between battery compartments, and the other on the opposite side of the battery swap unit to optimize space utilization in the station. These two options can be selected based on the actual installation environment and requirements.

[0015] When the counterweight is set on the end side adjacent to the battery swap body, it is set adjacent to the battery swap body and the distance between the two is relatively close, which facilitates the arrangement of the chain to achieve the connection between the chain, the counterweight and the battery swap body. This method also has fewer restrictions on the position setting of the battery rack, which facilitates the reasonable arrangement of the battery rack to facilitate the transportation of the battery pack by the battery swap body. The counterweight is set on the other side opposite to the battery swap body, and it is set opposite to the battery swap body. The chain connects to the counterweight and the battery swap body from two opposite directions, driving the counterweight and the battery swap body to move synchronously.

[0016] The lifting motor is arranged above the battery rack installation area, and the synchronization shaft extends from the lifting motor to both sides along the telescopic direction to correspond to the center position of the counterweight blocks at both ends. The end of the synchronization shaft is provided with the sprocket, and the top of the battery exchange body is provided with a driven wheel to enable the corresponding chain to be transmitted and connected between the counterweight block and the battery exchange body.

[0017] The extended end of the synchronous shaft corresponds to the center position of the counterweight block, and the sprocket set at the end of the synchronous shaft is located in the center position area of the counterweight block. The chain is connected to the center position of the counterweight block after being transmitted by the sprocket, which is conducive to the counterweight block maintaining a good balance in movement during the lifting and lowering process. A driven wheel is set on the top of the battery swap body to realize auxiliary transmission of the chain. The chain is connected to the battery swap body through the driven wheel. The driven wheel cooperates with the sprocket to guide the movement direction of the chain, which is conducive to improving the movement stability and accuracy of the movement direction during the lifting process, and preventing the battery swap body from shaking or deviating from the preset path.

[0018] The sprocket located at the end of the synchronization shaft is engaged with the chain, and the driven wheel located at the top of the battery exchange body is a light wheel to guide the chain.

[0019] The sprocket at the end of the synchronous shaft meshes with the chain to effectively limit and transmit the chain, preventing it from shaking or deflecting, thereby ensuring path accuracy and lifting stability during the lifting process. The driven wheel is set as a light wheel, which cooperates with the sprocket to guide and transmit the chain. The light wheel has a simple connection method, eliminating the need for a complex transmission connection between it and the sprocket, which is low cost and easy to manufacture.

[0020] There are four columns and four counterweights in number and they are arranged in one-to-one correspondence. Each counterweight is spaced apart from the corresponding column. The four counterweights are located on the outside of the four columns and are arranged in a direction perpendicular to the telescopic movement direction of the battery exchange device, so that a battery rack installation area is formed between two counterweights and two adjacent columns.

[0021] Four columns are set up to correspond to the four corners of the battery swap body, so that the two sides of the battery swap body can be driven to rise and fall at the corresponding columns, thereby ensuring the stability of the movement of the battery swap body during the lifting process. In this method, the counterweight block is set on the side opposite the battery swap body. The battery swap body is set closer to the column than the counterweight block, forming a battery rack installation area between the counterweight block and the column, which makes rational use of space. The battery swap body is adjacent to the battery rack, which facilitates the removal and placement of battery packs at the battery rack.

[0022] Along the telescopic movement direction, the two counterweight blocks located on the same side are arranged at intervals to avoid the electrical connection device on the battery rack arranged in the battery rack installation area.

[0023] The space is rationally utilized to set up an electrical connection device on the battery rack to realize battery pack charging, and the electrical connection device is set between the two counterweights. On the one hand, the overall force of the support frame is more balanced on the basis of setting the counterweight. On the other hand, in this method, the electrical connection device is set on the side opposite to the battery exchange body, which is convenient for the battery exchange body to drive the battery pack to be directly pushed into position, and quickly realize the electrical coupling between the electrical connection device and the battery pack.

[0024] The lifting motor and the synchronous shaft are arranged close to the counterweight block, and the sprocket arranged at the end of the synchronous shaft is located at the center position of the corresponding counterweight block.

[0025] The lifting motor and synchronous shaft are located close to the counterweight, facilitating a closer connection between the chain and the counterweight, and facilitating the stability of the counterweight's movement during lifting. The chain extends downward through a sprocket at the end of the synchronous shaft to connect to the counterweight. The sprocket at the end of the synchronous shaft is positioned corresponding to the center of the counterweight, allowing the chain to move the counterweight from its corresponding center. This helps maintain the stability of the counterweight during overall movement and prevents the counterweight from shifting during movement due to unilateral force.

[0026] The sprocket corresponding to the top of the battery exchange body is set on the top surface of the battery rack installation area through a mounting base. The mounting base is provided with a mounting groove for mounting the sprocket and a stop block for limiting the sprocket.

[0027] The mounting groove and stop block are simple to manufacture and structure, and their mating connection is easy to implement. This facilitates machining, installation, maintenance, and disassembly. The stop block secures the sprocket's mounting shaft within the mounting groove, thereby limiting the sprocket's position. The sprocket is secured to the mounting base, thereby positioning the sprocket and limiting the movement of the chain, allowing the chain to move along a predetermined path through the positioned sprocket.

[0028] The mounting base includes two side plates spaced apart from each other, each of the side plates extending laterally toward the battery exchange body to form the mounting groove, and the stop block is fixed on the side plate to limit the sprocket.

[0029] The transverse mounting slot facilitates the sideways insertion of the sprocket's central axis, making installation simpler and easier to operate, reducing assembly difficulty. Specifically, the stopper is positioned on the side of the side plate away from the sprocket, conventionally referred to as the outer side. This facilitates installation and prevents direct collision between the stopper and the sprocket or chain, facilitating a stable stopping effect.

[0030] A guide rail fixed to the battery rack is provided along the telescopic movement direction of the counterweight block, and a plurality of guide shoes are provided on both sides of each counterweight block to cooperate with the corresponding guide rail for guidance.

[0031] By setting up guide rails and guide shoes, the counterweight block is guided during movement, assisting the counterweight block to achieve stable and smooth lifting and lowering movement, and avoiding offset and shaking during the movement of the counterweight block, which is conducive to the stable lifting and lowering movement of the battery swap body. The guide rails are set in conjunction with the battery rack, so that the counterweight block can always achieve stable lifting and lowering through the guide rails and guide shoes throughout the entire lifting process.

[0032] The battery exchange equipment also includes multiple sliding mechanisms that can be slidably arranged on the side walls of multiple columns of the support frame. The battery exchange body is connected between the multiple sliding mechanisms, and the counterweight block is connected to the sliding mechanism on its corresponding side through the chain.

[0033] The battery swap body can be raised and lowered on the support frame. Specifically, it is connected by sliding through multiple sliding mechanisms to adjust the height of the battery swap device. When the battery needs to be removed and installed, it is adjusted to the height corresponding to the car chassis and then extended. When a low-power battery needs to be placed in the battery compartment for charging or a fully charged battery needs to be taken out of the battery compartment, it is adjusted to the height corresponding to the battery compartment and then extended to take out the battery. The counterweight block slides along the column, and the counterweight block and the sliding mechanism on the corresponding side move synchronously. When the lifting drive mechanism drives the battery swap body to be raised and lowered, the sliding mechanism connected to the battery swap body is simultaneously driven by the driving force to slide and lift along the column, providing assistance for the lifting of the battery swap body, making the lifting process of the battery swap body more stable and smoother, and realizing the synchronous lifting of the same side of the battery swap body.

[0034] There are four columns and four counterweights in number and they are arranged in one-to-one correspondence. Each counterweight is arranged adjacent to the corresponding column. The four counterweights are located on the outside of the four columns and are arranged in a direction parallel to the telescopic movement direction of the battery exchange device, so that a battery rack installation area is formed in the space opposite to the two counterweights.

[0035] If the counterweight block is located at the end side adjacent to the battery swap body, both the counterweight block and the battery swap body are set close to the column, which is beneficial to shorten the horizontal chain setting distance between the counterweight block and the battery swap body, and form a battery rack installation area between the two columns on the same side, that is, the two counterweight blocks on the same side, which is convenient for the battery swap body to take and place the battery pack.

[0036] The sprocket and the driven wheel are arranged on the top surface of the battery rack installation area through a mounting base.

[0037] The sprocket at the end of the synchronous shaft is close to the counterweight and is set corresponding to the center position of the counterweight. In this embodiment, the sprocket at the end of the synchronous shaft is set corresponding to the center position area of the counterweight. After the chain is transmitted through the sprocket, it changes direction and connects to the counterweight. In addition, a light wheel is provided on the top of the battery exchange body as a driven wheel. The driven wheel is arranged parallel to the sprocket of the sprocket at the end of the synchronous shaft. The chain is connected to the battery exchange body after passing through the driven wheel, which facilitates the movement and guidance of the chain. The sprocket and the driven wheel are fixed by installing a base to ensure the stability of the sprocket and the driven wheel during the transmission process, thereby ensuring the accuracy of the chain transmission direction and position.

[0038] The mounting base includes two mounting plates arranged opposite to each other, and mounting holes for fixing the sprocket and the driven wheel are respectively provided at both ends of the two mounting plates.

[0039] Mounting holes are set at both ends of the same mounting plate for installing the sprocket and the driven wheel respectively. The two oppositely arranged mounting plates clamp the sprocket and the driven wheel in the middle. The chain engages with the sprocket for transmission, and the chain is further guided by the driven wheel. The oppositely arranged mounting plates, on the one hand, fix the sprocket and the driven wheel on the same straight line, and on the other hand, form a barrier for the chain in the middle to prevent the chain from falling from the sprocket or the driven wheel when there is a tendency for the chain to deviate.

[0040] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows: the battery exchange body can be raised and lowered on the support frame to adjust the height of the battery exchange device. When it is necessary to remove and install the battery, it is adjusted to the height corresponding to the vehicle chassis and then extended. When it is necessary to put a low-power battery into the battery compartment for charging or to take out a fully charged battery from the battery compartment, it is adjusted to the height corresponding to the battery compartment and then extended to take and place the battery, thereby realizing battery disassembly and assembly operations on the battery exchange vehicle and / or battery transfer operations between the battery compartment positions of the battery rack. Two independent lifting drive mechanisms are set to independently control the lifting height on both sides of the battery exchange body, so that the battery exchange body can be tilted. In actual operation, the chassis of the tram may have a certain tilt angle and is not horizontal. In order to adapt to the tilt angle of the tram chassis, the tilt angle of the extended part of the battery exchange device needs to be adjusted. By independently controlling the lifting height on both sides of the battery exchange body, the purpose of tilting the compartment is achieved. When the compartment is tilted, the battery exchange device in the compartment is at the same tilt angle as the compartment, and the extended part can fit well with the tram chassis for battery removal and transfer.

[0041] The lifting motor drives the synchronous shaft to rotate, thereby simultaneously driving the two chains on the same side of the battery-swapping body to move the battery-swapping body vertically, controlling the height and tilt angle of the battery-swapping device, and performing precise battery-swapping operations in accordance with the vehicle chassis. By providing a counterweight, chain, and sprocket at each column and connecting them to the battery-swapping body on the corresponding side, the battery-swapping body can be lifted and lowered synchronously on the same side. The counterweight is provided to enhance the lifting and moving stability of the battery-swapping body, reduce the vibration and oscillation of the battery-swapping equipment during the lifting process, prevent deviation, and ensure that the lifting drive mechanism and the battery-swapping body maintain stable and balanced lifting within the specified range. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0043] Figure 1 This is a structural diagram of a battery swapping device in one embodiment of the present utility model;

[0044] Figure 2 for Figure 1 A magnified view of part A;

[0045] Figure 3 for Figure 1 A magnified view of part B;

[0046] Figure 4 This is a structural diagram of a lifting drive device in one embodiment of the present utility model;

[0047] Figure 5 for Figure 4 Magnified view of part C;

[0048] Figure 6 for Figure 4 Magnified view of the D part;

[0049] Figure 7 This is a structural diagram of a sliding mechanism in one embodiment of the present utility model;

[0050] Figure 8 This is a schematic structural diagram of a counterweight block in one embodiment of the present utility model;

[0051] Figure 9 This is a schematic structural diagram of the counterweight block from another angle in one embodiment of the present utility model;

[0052] Figure 10 This is a structural diagram of a sliding mechanism in another embodiment of the present invention.

[0053] Description of reference numerals:

[0054] 1-column, 2-battery rack, 21-cross bar, 22-limiting part, 3-battery exchange body, 4-lifting drive mechanism, 41-lifting motor, 42-synchronizing shaft, 43-sprocket, 44-chain, 45-driven wheel, 5-counterweight, 6-mounting base, 61-side plate, 611-mounting groove, 62-stop block, 63-mounting plate, 64-mounting hole, 65-top plate, 7-guide rail, 8-guide shoe, 9-sliding mechanism, 91-slider, 92-connecting rod, 93-fixed plate, 94-roller, 10-electrical connection device. DETAILED DESCRIPTION

[0055] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0056] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.

[0057] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0058] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0059] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0060] This application solution provides a battery replacement device, such as Figures 1 to 10 As shown, it includes: a fixed support frame, a battery-changing body 3 arranged between the support frames and capable of being lifted and lowered, and a battery-changing device arranged in the battery-changing body 3 and capable of being telescopically moved to the outside of the support frame. The telescopic movement of the battery-changing device and the lifting and lowering movement of the battery-changing body 3 realize the battery disassembly and assembly operations of the battery-changing vehicle and / or the battery transfer operations between the battery compartment positions of the battery rack 2; the battery-changing equipment also includes two independent lifting drive mechanisms 4 respectively arranged on both sides of the battery-changing body 3, the lifting drive mechanism 4 includes a lifting motor 41, and the support frame includes a plurality of columns 1 arranged around the battery-changing body 3, each column 1 is provided with a vertically movable counterweight block 5, and the counterweight block 5 is connected to the battery-changing body 3 on its corresponding side through a chain 44, and a sprocket 43 is provided above each column 1 for transmission in cooperation with its side chain 44, and the lifting motor 41 drives the synchronous shaft 42 to rotate, thereby simultaneously driving the two chains 44 located on the same side of the battery-changing body 3 to drive the battery-changing body 3 to move vertically.

[0061] The battery-exchange body 3 can be raised and lowered on the support frame to adjust the height of the battery-exchange device. When it is necessary to remove and install the battery, it is adjusted to the height corresponding to the vehicle chassis and then extended. When it is necessary to put a low-power battery into the battery compartment for charging or to take out a fully charged battery from the battery compartment, it is adjusted to the height corresponding to the battery compartment and then extended to take and place the battery, thereby realizing battery disassembly and assembly operations on the battery-exchange vehicle and / or battery transfer operations between the battery compartment positions of the battery rack 2. Two independent lifting drive mechanisms 4 are set to independently control the lifting height on both sides of the battery-exchange body 3, so that the battery-exchange body 3 can be tilted. In actual operation, the chassis of the tram may have a certain tilt angle and is not horizontal. In order to adapt to the tilt angle of the tram chassis, the tilt angle of the extended part of the battery-exchange device needs to be adjusted. By independently controlling the lifting height on both sides of the battery-exchange body 3, the purpose of tilting the compartment is achieved. When the compartment is tilted, the battery-exchange device in the compartment is at the same tilt angle as the compartment, and the extended part can fit well with the tram chassis for battery removal and transfer.

[0062] The lifting motor 41 drives the synchronous shaft 42 to rotate, thereby simultaneously driving the two chains 44 on the same side of the battery-exchange body 3 to drive the battery-exchange body 3 to move vertically, control the height and tilt angle of the battery-exchange device, and perform precise battery-exchange operations in accordance with the vehicle chassis. By providing a counterweight 5, a chain 44, and a sprocket 43 at each column 1 and connecting them to the battery-exchange body 3 on its corresponding side, the battery-exchange body 3 can be lifted and lowered synchronously on the same side. The counterweight 5 is provided to enhance the lifting and moving stability of the battery-exchange body 3, reduce the vibration and oscillation of the battery-exchange equipment during the lifting process, prevent deviation, and ensure that the lifting drive mechanism 4 and the battery-exchange body 3 maintain stable and balanced lifting within the specified range.

[0063] It can be understood that the accompanying drawings illustrate the assembly connection relationship between the battery exchange body 3 and the battery rack 2. In actual applications, the height of the battery exchange body 3 and the battery rack 2 can be set according to actual needs.

[0064] In one embodiment, if Figure 1 、 Figure 4 as well as Figures 8 to 10 As shown, the counterweight 5 is located on the end side adjacent to or opposite to the battery exchange body 3 .

[0065] The counterweight 5 can be placed in two positions: one is on the side adjacent to the battery swap body 3 to facilitate battery transportation between battery compartments, and the other is on the other side opposite the battery swap body 3 to optimize the space utilization efficiency of the battery swap station. These two methods can be selected according to the actual installation environment and needs.

[0066] When the counterweight 5 is set on the end side adjacent to the battery swap body 3, it is set adjacent to the battery swap body 3, and the distance between the two is relatively close, which facilitates the arrangement of the chain 44 to achieve the connection between the chain 44 and the counterweight 5 and the battery swap body 3. In addition, this method has fewer restrictions on the position setting of the battery rack 2, and is convenient for the reasonable arrangement of the battery rack 2 to facilitate the transportation of the battery pack by the battery swap body 3. The counterweight 5 is set on the other side opposite to the battery swap body 3, and is arranged opposite to the battery swap body 3. The chain 44 realizes the connection with the counterweight 5 and the battery swap body 3 from two opposite directions, driving the counterweight 5 and the battery swap body 3 to move synchronously.

[0067] Furthermore, the lifting motor 41 is arranged above the installation area of the battery rack 2, and the synchronization shaft 42 extends from the lifting motor 41 to both sides along the telescopic direction to correspond to the center position of the counterweight blocks 5 at both ends. A sprocket 43 is provided at the end of the synchronization shaft 42, and a driven wheel 45 is provided at the top of the battery exchange body 3 to enable the corresponding chain 44 to be transmitted and connected between the counterweight block 5 and the battery exchange body 3.

[0068] The extended end of the synchronization shaft 42 corresponds to the center position of the counterweight 5, and the sprocket 43 provided at the end of the synchronization shaft 42 is located in the center position area of the counterweight 5. The chain 44 is connected to the center position of the counterweight 5 after being transmitted by the sprocket 43, which is conducive to the counterweight 5 maintaining a good balance during the lifting and moving process. A driven wheel 45 is provided on the top of the battery swap body 3 to realize auxiliary transmission of the chain 44. The chain 44 is connected to the battery swap body 3 through the driven wheel 45. The driven wheel 45 cooperates with the sprocket 43 to guide the movement direction of the chain 44, which is conducive to improving the movement stability and the accuracy of the movement direction during the lifting process, and preventing the battery swap body 3 from shaking or deviating from the preset path.

[0069] Preferably, the sprocket 43 located at the end of the synchronization shaft 42 is engaged with the chain 44 , and the driven wheel 45 located at the top of the battery exchange body 3 is a light wheel to guide the chain 44 .

[0070] The sprocket 43 at the end of the synchronization shaft 42 meshes with the chain 44 to effectively limit and transmit the chain 44, preventing the chain 44 from shaking or deflecting, thereby ensuring path accuracy and lifting stability during the lifting process. The driven wheel 45 is configured as a smooth wheel, which cooperates with the sprocket 43 to guide and transmit the chain 44. The smooth wheel has a simple connection form, eliminating the need for a complex transmission connection between the sprocket 43 and the chain, resulting in low cost and low manufacturing difficulty.

[0071] As a preferred implementation scheme under this embodiment, the counterweight block 5 is set on the side opposite to the battery replacement body 3.

[0072] Specifically, if Figures 1 to 3As shown, there are four columns 1 and four counterweights 5, which are arranged in one-to-one correspondence. Each counterweight 5 is spaced apart from the corresponding column 1. The four counterweights 5 are located on the outside of the four columns 1 and are arranged in a direction perpendicular to the telescopic movement direction of the battery exchange device, so that a battery rack 2 installation area is formed between the two counterweights 5 and the two adjacent columns 1.

[0073] Four columns 1 are set to correspond to the four corners of the battery-swap body 3, so that the two sides of the battery-swap body 3 can be driven and lifted at the corresponding columns 1, thereby ensuring the movement stability of the battery-swap body 3 during the lifting process. In this way, the counterweight block 5 is set on the opposite side of the battery-swap body 3. The battery-swap body 3 is closer to the column 1 than the counterweight block 5, and the battery rack 2 installation area is formed between the counterweight block 5 and the column 1, which makes rational use of space. The battery-swap body 3 is adjacent to the battery rack 2, which facilitates the removal and placement of the battery pack at the battery rack 2.

[0074] Preferably, if Figure 1 As shown, along the telescopic movement direction, the two counterweights 5 located on the same side are spaced apart to avoid the electrical connection device 10 on the battery rack 2 provided in the installation area of the battery rack 2 .

[0075] The space is rationally utilized to set up an electrical connection device 10 on the battery rack 2 to realize battery pack charging, and the electrical connection device 10 is set between the two counterweights 5. On the one hand, the overall force of the support frame is more balanced on the basis of setting the counterweight 5. On the other hand, in this method, the electrical connection device 10 is set on the side opposite to the battery exchange body 3, which is convenient for the battery exchange body 3 to drive the battery pack to be directly pushed into position, and quickly realize the electrical coupling between the electrical connection device 10 and the battery pack.

[0076] Furthermore, the lifting motor 41 and the synchronous shaft 42 are arranged close to the counterweight 5 , and the sprocket 43 arranged at the end of the synchronous shaft 42 is located at the center position of the corresponding counterweight 5 .

[0077] The lifting motor 41 and the synchronous shaft 42 are located close to the counterweight 5, facilitating a closer connection between the chain 44 and the counterweight 5 and facilitating the stability of the movement of the counterweight 5 during the lifting process. The chain 44 extends downwardly through the sprocket 43 provided at the end of the synchronous shaft 42 to connect with the counterweight 5. The sprocket 43 at the end of the synchronous shaft 42 is provided at a position corresponding to the center of the counterweight 5. The chain 44 then drives the counterweight 5 from the corresponding center of the counterweight 5, which helps maintain the stability of the overall movement of the counterweight 5 and prevents the counterweight 5 from deflecting during movement due to unilateral force.

[0078] As a preferred embodiment of this embodiment, Figure 2As shown, the sprocket 43 corresponding to the top of the battery exchange body 3 is set on the top surface of the battery rack 2 installation area through the installation base 6. The installation base 6 is provided with a mounting groove 611 for installing the sprocket 43 and a stop block 62 for limiting the sprocket 43.

[0079] The mounting groove 611 and the stop block 62 are simple to manufacture and structurally design, and their mating connection is easily realized. This facilitates machining, installation, maintenance, and disassembly. The stop block 62 secures the mounting shaft of the sprocket 43 within the mounting groove 611, thereby limiting the position of the sprocket 43 and securing the sprocket 43 to the mounting base 6. This positions the sprocket 43 while restricting the movement of the chain 44, allowing the chain 44 to move along a predetermined path through the positioned sprocket 43.

[0080] Furthermore, the mounting base 6 includes two side plates 61 spaced apart from each other, and each side plate 61 extends laterally toward the battery exchange body 3 to form a mounting groove 611 , and a stop block 62 is fixed on the side plate 61 to limit the sprocket 43 .

[0081] The transverse mounting groove 611 facilitates the sideways insertion of the sprocket's central axis, making installation simpler and easier to operate, reducing assembly difficulty. Specifically, the stopper 62 is positioned on the side of the side plate 61 away from the sprocket, i.e., on the outside in the conventional sense. This facilitates installation of the stopper 62 and prevents direct collision between the stopper 62 and the sprocket 43 or chain 44, thus facilitating a stable stopping effect.

[0082] Furthermore, the mounting base 6 includes a top plate 65 disposed above the side plate 61 to prevent the chain 44 from falling over the side plate 61 from above the sprocket 43 . The top plate 65 cooperates with the side plate 61 to limit the chain 44 .

[0083] It should be noted that the sprocket located at the top of the battery exchange body 3 in the figure is positioned by the side plates and the stop blocks. In actual applications, the sprocket 43 set at the center position of the counterweight block 5 can also be fixed using the mounting base 6 in this way.

[0084] In one embodiment, a guide rail 7 fixed to the battery rack 2 is provided along the telescopic movement direction of the counterweight 5, and a plurality of guide shoes 8 are provided on both sides of each counterweight 5 to cooperate with the corresponding guide rail 7 for guidance.

[0085] By providing the guide rails 7 and guide shoes 8, the counterweight 5 is guided during movement, and the counterweight 5 is assisted to achieve stable and smooth lifting and lowering movement, and can avoid offset and shaking during the movement of the counterweight 5, thereby facilitating the stable lifting and lowering movement of the battery swap body 3. The guide rails 7 are provided in conjunction with the battery rack 2, so that the counterweight 5 can always achieve stable lifting and lowering through the guide rails 7 and guide shoes 8 during the entire lifting process.

[0086] In addition, if Figure 1 、 Figure 3 As shown, in this embodiment, a plurality of cross bars 21 are arranged at vertical intervals on the battery rack 2, and the guide rail 7 is fixed to the cross bar 21 by a limiting member 22 extending from the cross bar 21, and the two ends of the limiting member 22 are fixedly connected to the cross bar 21 and the guide rail 7 respectively, so as to form a separation gap between the guide rail 7 and the cross bar 21.

[0087] On the one hand, the provision of the crossbar can strengthen the structural strength of the battery rack 2, reduce the amplitude of the shaking caused by the movement of the counterweight 5 and the battery swap body 3, and help maintain the balance and stability of the counterweight 5 and the battery swap body 3 during the lifting process. In addition, the provision of a separation gap is convenient for adapting to the thickness of the counterweight 5. In addition, since the counterweight 5 may shake when moving, the separation gap provides movable space for the counterweight 5 and the guide rail 7, preventing the counterweight 5 from shaking and colliding with the battery rack 2.

[0088] As another implementation method under the above embodiment, Figures 3 to 5 as well as Figure 8 、 Figure 9 As shown, the counterweight 5 is arranged on the end side adjacent to the battery replacement body 3:

[0089] Specifically, the number of columns 1 and counterweight blocks 5 are four respectively and they are arranged in one-to-one correspondence. Each counterweight block 5 is arranged adjacent to the corresponding column 1. The four counterweight blocks 5 are located on the outside of the four columns 1 and are arranged in a direction parallel to the telescopic movement direction of the battery exchange device, so that a battery rack 2 installation area is formed in the space opposite to the two counterweight blocks 5.

[0090] The counterweight block 5 is located at the end side adjacent to the battery exchange body 3, so the counterweight block 5 and the battery exchange body 3 are both set close to the column 1, which is beneficial to shorten the horizontal chain 44 setting distance between the counterweight block 5 and the battery exchange body 3, and a battery rack 2 installation area is formed between the two columns 1 on the same side, that is, the two counterweight blocks 5 on the same side, which is convenient for the battery exchange body 3 to take and place the battery pack.

[0091] When the counterweight block 5 is arranged on the adjacent end side of the battery exchange body 3, the two counterweight blocks 5 are arranged opposite to each other, the battery rack 2 is located between the two oppositely arranged counterweight blocks 5, and the electrical connection device 10 is located between the two counterweight blocks 5. The position of the electrical connection device 10 remains unchanged, thereby realizing rapid alignment of the electrical connection device 10 and the battery pack.

[0092] As an implementation method of this embodiment, the sprocket 43 and the driven wheel 45 are arranged on the top surface of the installation area of the battery rack 2 through the installation base 6.

[0093] The sprocket 43 at the end of the synchronization shaft 42 is close to the counterweight 5 and is arranged corresponding to the center position of the counterweight 5. In this embodiment, the sprocket 43 at the end of the synchronization shaft 42 is arranged corresponding to the center position area of the counterweight 5. The chain 44 changes direction and connects to the counterweight 5 after being transmitted by the sprocket 43. In addition, a light wheel is also provided on the top of the battery exchange body 3 as a driven wheel 45. The driven wheel 45 is arranged parallel to the sprocket 43 at the end of the synchronization shaft 42. The chain 44 is connected to the battery exchange body 3 after passing through the driven wheel 45, which facilitates the movement and guidance of the chain 44. The sprocket 43 and the driven wheel 45 are fixed by installing the base 6 to ensure the stability of the sprocket 43 and the driven wheel 45 during the transmission process, thereby ensuring the accuracy of the transmission direction and position of the chain 44.

[0094] Furthermore, the mounting base 6 includes two mounting plates 63 arranged opposite to each other, and mounting holes 64 for fixing the sprocket 43 and the driven wheel 45 are respectively provided at both ends of the two mounting plates 63 .

[0095] Mounting holes 64 are set at both ends of the same mounting plate 63 for the sprocket 43 and the driven wheel 45 respectively. The two oppositely arranged mounting plates 63 clamp the sprocket 43 and the driven wheel 45 in the middle. The chain 44 is engaged with the sprocket 43 for transmission, and the chain 44 is further guided to move by the driven wheel 45. The oppositely arranged mounting plates 63, on the one hand, fix the sprocket 43 and the driven wheel 25 on the same straight line, and on the other hand, form a resistance for the chain 44 in the middle to prevent the chain 44 from falling from the sprocket 43 or the driven wheel 45 when there is a tendency for the chain 44 to deviate.

[0096] In addition, in this embodiment, the mounting base 6 is fixed to the top of the battery rack 2, the counterweight 5 is located on the end side adjacent to the battery exchange box 3, and guide rails 7 are provided on both sides of the counterweight 5 along the telescopic movement direction of the counterweight 5, one side of the guide rail 7 is fixed to the battery rack 2, and the other side of the guide rail 7 is fixed to the column 1. At the same time, guide shoes 8 are provided on both sides of the counterweight 5 to cooperate with the guide rail 7 on the same side. During the movement of the counterweight 5, the guide shoe 8 moves along the guide rail 7 to improve the stability and smoothness of the movement of the counterweight 5.

[0097] In one embodiment, the battery exchange equipment also includes multiple sliding mechanisms 9 that can be slidably arranged on the side walls of multiple columns 1 of the support frame. The battery exchange body 3 is connected between the multiple sliding mechanisms 9, and the counterweight block 5 is connected to the sliding mechanism 9 on its corresponding side through a chain 44.

[0098] The battery-exchange body 3 can be raised and lowered on the support frame. Specifically, it is connected by sliding through multiple sliding mechanisms 9 to adjust the height of the battery-exchange device. When the battery needs to be removed and installed, it is adjusted to the height corresponding to the car chassis and then extended. When a low-power battery needs to be placed in the battery compartment for charging or a fully charged battery needs to be taken out of the battery compartment, it is adjusted to the height corresponding to the battery compartment and then extended to take out the battery. By the sliding of the counterweight 5 along the column 1, and the synchronous movement of the counterweight 5 and the sliding mechanism 9 on the corresponding side, when the lifting drive mechanism 4 drives the battery-exchange body 3 to be raised and lowered, the sliding mechanism 9 connected to the battery-exchange body 3 is simultaneously driven by the driving force to slide and rise along the column 1, providing assistance for the lifting of the battery-exchange body 3, making the lifting process of the battery-exchange body 3 more stable and smoother, and realizing the synchronous lifting of the same side of the battery-exchange body 3.

[0099] As an implementation method under this embodiment, Figure 4 、 Figure 6 As shown, there are four columns 1, and the sliding mechanism 9 includes a connecting rod 92 and a vertically arranged fixed plate 93 fixed at both ends of the connecting rod 92. At least two sliders 91 are sequentially provided on the side wall of each column 1 and one of the fixed plates 93 along the lifting direction, and a slide rail cooperating with the slider 91 is provided on the other side wall.

[0100] Connecting rod 92 and column 1 are slidably connected via sliders 91 and a slide rail structure. Whether sliders 91 and slide rails are specifically arranged on fixed plate 93 or column 1 is not a specific requirement; both arrangements can achieve the technical effect of lifting and lowering. The presence of at least two sliders 91 in sequence along the lifting direction helps define the trajectory of sliding mechanism 9, preventing deviation during lifting, thereby improving operational stability and reliability.

[0101] Or, as Figure 1 、 Figure 10 As shown, at least two rollers 94 are provided on the two perpendicular side walls of the fixing plate 93 adjacent to the column 1, and rolling surfaces that cooperate with the rollers 94 are provided on the two mutually perpendicular side walls corresponding to the column 1. The cooperation between the rollers 94 and the rolling surfaces enables the lifting and movement of the battery swap body 3 along the column 1, and cooperates with the lifting drive mechanism 4 to ensure stability and smoothness during the lifting and movement of the battery swap body 3.

[0102] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0103] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0104] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A battery replacement device, characterized in that: include: A fixed support frame, a battery exchange body arranged between the support frames and capable of being lifted and lowered, and a battery exchange device arranged in the battery exchange body and capable of being telescopically moved to the outside of the support frame. The telescopic movement of the battery exchange device and the lifting and lowering movement of the battery exchange body realize battery disassembly and assembly operations on the battery exchange vehicle and / or battery transfer operations between battery compartments of the battery rack; the battery exchange equipment also includes two independent lifting drive mechanisms respectively arranged on both sides of the battery exchange body, the lifting drive mechanism includes a lifting motor, and the support frame includes a plurality of columns arranged around the battery exchange body, each of the columns is provided with a vertically movable counterweight block, and the counterweight block is connected to the battery exchange body on its corresponding side through a chain, and a sprocket is provided above each column for transmission in cooperation with the chain on its side, and the lifting motor drives the synchronous shaft to rotate, thereby simultaneously driving the two chains located on the same side of the battery exchange body to drive the battery exchange body vertically.

2. A battery replacement device according to claim 1, characterized in that: The counterweight block is located on the end side adjacent to or on the opposite side of the battery exchange body.

3. The battery replacement device according to claim 2, characterized in that: The lifting motor is arranged above the battery rack installation area, and the synchronization shaft extends from the lifting motor to both sides along the telescopic direction to correspond to the center position of the counterweight blocks at both ends. The end of the synchronization shaft is provided with the sprocket, and the top of the battery exchange body is provided with a driven wheel to enable the corresponding chain to be transmitted and connected between the counterweight block and the battery exchange body.

4. The battery replacement device according to claim 3, characterized in that: The sprocket located at the end of the synchronization shaft is engaged with the chain, and the driven wheel located at the top of the battery exchange body is a light wheel to guide the chain.

5. The battery replacement device according to claim 3, characterized in that: There are four columns and four counterweights in number and they are arranged in one-to-one correspondence. Each counterweight is spaced apart from the corresponding column. The four counterweights are located on the outside of the four columns and are arranged in a direction perpendicular to the telescopic movement direction of the battery exchange device, so that a battery rack installation area is formed between two counterweights and two adjacent columns.

6. The battery replacement device according to claim 5, characterized in that: Along the telescopic movement direction, the two counterweight blocks located on the same side are arranged at intervals to avoid the electrical connection device on the battery rack arranged in the battery rack installation area.

7. The battery replacement device according to claim 6, characterized in that: The lifting motor and the synchronous shaft are arranged close to the counterweight block, and the sprocket arranged at the end of the synchronous shaft is located at the center position of the corresponding counterweight block.

8. The battery replacement device according to claim 5, characterized in that: The sprocket corresponding to the top of the battery exchange body is set on the top surface of the battery rack installation area through a mounting base. The mounting base is provided with a mounting groove for mounting the sprocket and a stop block for limiting the sprocket.

9. The battery replacement device according to claim 8, characterized in that: The mounting base includes two side plates spaced apart from each other, each of the side plates extending laterally toward the battery exchange body to form the mounting groove, and the stop block is fixed on the side plate to limit the sprocket.

10. The battery replacement device according to claim 5, characterized in that: A guide rail fixed to the battery rack is provided along the telescopic movement direction of the counterweight block, and a plurality of guide shoes are provided on both sides of each counterweight block to cooperate with the corresponding guide rail for guidance.

11. The battery replacement device according to claim 1, characterized in that: The battery exchange equipment also includes multiple sliding mechanisms that can be slidably arranged on the side walls of multiple columns of the support frame. The battery exchange body is connected between the multiple sliding mechanisms, and the counterweight block is connected to the sliding mechanism on its corresponding side through the chain.

12. The battery replacement device according to claim 3, characterized in that: There are four columns and four counterweights in number and they are arranged in one-to-one correspondence. Each counterweight is arranged adjacent to the corresponding column. The four counterweights are located on the outside of the four columns and are arranged in a direction parallel to the telescopic movement direction of the battery exchange device, so that a battery rack installation area is formed in the space opposite to the two counterweights.

13. The battery replacement device according to claim 12, characterized in that: The sprocket and the driven wheel are arranged on the top surface of the battery rack installation area through a mounting base.

14. The battery replacement device according to claim 13, characterized in that: The mounting base includes two mounting plates arranged opposite to each other, and mounting holes for fixing the sprocket and the driven wheel are respectively provided at both ends of the two mounting plates.

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