Battery transfer device and battery replacement equipment
By designing the sliding and telescopic mechanism of the battery transfer device, the safety hazards, space limitations and low efficiency problems in heavy truck battery replacement are solved, and efficient and safe battery pack disassembly and transfer are achieved.
Patent Information
- Application Number
- CN202411212919.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-29
- Filing Date
- 2024-08-30
- Publication Date
- 2025-10-10
AI Technical Summary
In the existing technology, the battery swap mode for large vehicles such as heavy trucks has safety hazards, high site requirements, limited space for battery swap equipment and battery storage devices, low battery swap efficiency, and difficulties in docking due to vehicle parking position offset.
A battery transfer device is designed, including a compartment, a telescopic mechanism and a sliding mechanism. The sliding mechanism drives the telescopic mechanism to move in the vertical direction. Combined with the guiding mechanism and the battery replacement mechanism, precise alignment and efficient disassembly and assembly of the battery pack can be achieved.
It reduces the site and equipment costs of battery swap stations, improves the accuracy and efficiency of battery swapping, reduces safety hazards, and enhances the versatility and space utilization of equipment.
Smart Images
Figure CN120756341A_ABST
Abstract
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 belongs to the technical field of battery replacement for electric vehicles, and specifically relates to a battery transfer device and battery replacement equipment. 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 replacement mode. For example, a chassis-type battery replacement mode for passenger cars is adopted. In the chassis-type battery replacement mode, it is necessary to control the battery replacement equipment to move as a whole to the battery replacement position under the battery replacement vehicle, and then perform lifting operations and remove or install battery pack operations to complete the entire battery replacement process. In this battery replacement process, due to the limited space at the bottom of the battery replacement vehicle, especially heavy-duty battery replacement vehicles, which are difficult to drive and park on a platform above the ground, the space at the bottom of the battery replacement vehicle is even more limited. If a battery replacement device is used for battery replacement, the battery replacement device needs to carry the low-power battery pack or the fully charged battery pack to move back and forth and in and out of the bottom of the battery replacement vehicle during the battery replacement process. In order to meet the power requirements of heavy-duty battery replacement vehicles, the battery packs are very large, which leads to a great restriction on the available space for the battery replacement equipment and the battery storage device in the station. In addition, in the prior art, the battery pack interaction between the battery replacement equipment and the battery storage device usually requires a separate stacker to be implemented, which further compresses the available installation space in the station, and also prolongs the battery replacement process, making it difficult to effectively improve the battery replacement efficiency.
[0006] In addition, due to the large body size and weight of heavy trucks, the range of adjustment of the body posture in a limited space is extremely small and difficult to adjust, and the operating position of the battery swapping action of the existing battery swapping equipment is usually fixed. This leads to the problem that in the actual battery swapping process, the battery swapping equipment cannot accurately dock with the battery swapping vehicle to perform the battery swapping operation due to the offset of the parking position of the battery swapping vehicle.
[0007] This shows that the many drawbacks of the prior art need to be further improved and enhanced. Summary of the Invention
[0008] The present application provides a battery transfer device and a battery replacement device to solve at least one of the above technical problems.
[0009] The technical solutions adopted in this application are:
[0010] In the first aspect, the present application provides a battery transport device, comprising a body and a telescopic mechanism disposed in the body and capable of being telescoped and moved outward. The battery transport device also comprises a sliding mechanism disposed between the telescopic mechanism and the body, so that the telescopic mechanism can move relative to the body in a direction perpendicular to the telescopic direction.
[0011] In the above scheme, the car body is used to support and fix the telescopic mechanism, and the telescopic mechanism is used to extend out of the car body to take out the low-charged battery removed from the tram and put it into the battery compartment for charging, and take out the fully charged battery in the battery compartment for easy installation on the tram. By setting a sliding mechanism to drive the telescopic mechanism to perform calibration movement, it can adapt to the different positions of the battery pack installation area on heavy trucks of different vehicle lengths, which is conducive to improving the versatility of the battery replacement equipment in this application, and the sliding mechanism is set between the fixed part and the car body to fully utilize the installation space inside the car body; at the same time, it is also convenient to eliminate the position error between the telescopic mechanism and the heavy truck battery pack installation area caused by the parking position offset, and to facilitate the removal and placement of batteries at different positions in the battery compartment, which is conducive to improving the battery replacement accuracy and efficiency.
[0012] As a preferred embodiment of the present application, the sliding mechanism includes a fixed part arranged in the compartment along a direction perpendicular to the telescopic direction and a movable part movably arranged on the fixed part, and the telescopic mechanism includes a fixed part connected to the fixed part or the movable part and a telescopic part movably connected to the fixed part.
[0013] In the above scheme, the cooperation of the fixed part and the movable part realizes the function of moving the telescopic mechanism relative to the compartment in the direction perpendicular to the telescopic direction. The telescopic mechanism is provided with a fixed part, which moves relative to the compartment in the direction perpendicular to the telescopic direction through a sliding mechanism, thereby driving the whole telescopic mechanism to move relative to the compartment in the direction perpendicular to the telescopic direction. The telescopic mechanism is provided with a telescopic part, which can be extended out of the compartment to take and place the battery, and the telescopic part and the fixed part are movably connected to realize the telescopic movement of the telescopic mechanism. Meanwhile, in the above scheme, the sliding mechanism is arranged between the compartment and the telescopic mechanism, which can fully utilize the installation space of the compartment, and the telescopic mechanism is always located directly below the telescopic mechanism in this arrangement, which is beneficial to keeping balance when the telescopic mechanism carries the battery pack.
[0014] As a preferred embodiment of the present application, the battery transfer device further comprises a guide mechanism arranged between the compartment and the telescopic mechanism, the guide mechanism comprising a pair of guide rails and sliding blocks, one of the guide rails and the sliding blocks being fixed to the compartment and the other being fixed to the telescopic mechanism.
[0015] In the above scheme, the arrangement of the guide mechanism can ensure the stability of the calibration movement path of the telescopic mechanism, thereby improving the accuracy of the calibration movement to enable the telescopic mechanism to accurately align with the heavy truck battery mounting area and accurately and efficiently complete the battery replacement work.
[0016] As a preferred embodiment of the present application, the fixed part is a rack of a predetermined length, the movable part is a gear, the gear is arranged on the telescopic mechanism, the rack is arranged on the compartment, and the sliding mechanism further comprises a driving motor arranged on the telescopic mechanism for driving the gear to rotate.
[0017] In the above scheme, the rack is fixed on the compartment, the gear is fixed on the telescopic mechanism, the gear and the rack are engaged, a driving motor is arranged on the telescopic mechanism to drive the gear to rotate, the gear rotates at the same time to generate an interaction force with the rack, since the rack is fixed, the gear drives the telescopic mechanism to move relative to the compartment in the direction perpendicular to the telescopic direction, and the above gear and rack engagement has the advantage of high transmission accuracy, and the driving motor also has the characteristics of fast response speed and convenient control, thereby facilitating accurate control of the action of the sliding mechanism to ensure that the telescopic mechanism can be accurately aligned with the battery pack mounting area of the battery replacement vehicle; the cooperation between the above gear and rack is simple and compact, especially the height dimension in the vertical direction is small, which is beneficial to reducing the equipment height to better adapt to the battery replacement needs of heavy trucks.
[0018] As a preferred embodiment of the present application, the drive motor is connected to the adjacent fixed part through a fixed mounting plate, a mounting hole is provided on the fixed mounting plate, and the rotating shaft of the drive motor passes through the mounting hole and is connected to the gear; the bottom of the compartment includes a crossbeam arranged in a direction perpendicular to the telescopic direction of the telescopic mechanism, the rack is fixedly connected to the crossbeam, and the extension direction of the rack is perpendicular to the telescopic direction of the telescopic mechanism, and the gear is driven to rotate by the drive motor so that it moves relative to the rack, thereby driving the telescopic mechanism to move synchronously.
[0019] In the above scheme, the frame structure adopted by the box body is conducive to reducing the dead weight of the box body while ensuring its structural strength and load-bearing capacity. The frame structure is convenient for increasing the available installation height inside the box body in the vertical direction, which is conducive to reducing the overall height of the equipment to better adapt to the battery replacement needs of heavy trucks. It is also convenient for the fixed installation of the telescopic mechanism and / or sliding mechanism, reducing the use of additional fasteners to further reduce weight; the extension direction of the rack is perpendicular to the telescopic direction of the telescopic mechanism. When the gear rotates, it can only move in the direction perpendicular to the telescopic direction, thereby driving the telescopic mechanism to move in the direction perpendicular to the telescopic direction; the above-mentioned setting method can also make full use of the installation space on the lower part of the box body and the crossbeam, reduce the occupation of the vertical installation space, and facilitate the interaction of the telescopic mechanism with other devices and equipment such as battery replacement vehicles for battery packs; and by fixing the rack on the inner wall of the crossbeam, it is also conducive to shortening the transmission distance between the gear and the drive motor, thereby helping to reduce the fatigue failure rate of the motor output shaft / drive shaft, extend its service life, and also achieve a quieter effect.
[0020] As a preferred embodiment of the present application, both ends of the fixing part are slidably connected to the crossbeam through the guide mechanism, the two ends of the fixing part are located above the crossbeam, and the lower part of the fixing part includes a downwardly protruding limit base, and the two ends of the limit base are clamped between the two crossbeams.
[0021] In the above scheme, the setting of the guide mechanism realizes a sliding connection between the fixed part and the cross beam so that the telescopic mechanism can move in a direction perpendicular to the telescopic direction, and the cooperation between the guide mechanism and the cross beam can also realize the restriction of the movement trajectory of the telescopic mechanism; the setting of the limit base and its cooperation with the cross beam can ensure that the telescopic mechanism can only move in a direction perpendicular to the telescopic direction, thereby further stabilizing the movement trajectory of the telescopic mechanism and preventing angular deviation from affecting the accuracy of battery removal and placement.
[0022] As a preferred embodiment of the present application, the fixed mounting plate is arranged between two adjacent limiting bases, and both ends of the fixed mounting plate are respectively connected to the limiting bases.
[0023] In the above scheme, the fixed mounting plate is arranged between the limiting bases, so that the mounting space of the telescopic mechanism and the lower part of the compartment can be fully utilized, and the fixed mounting plate can also strengthen the structure of the fixed part and improve the structural strength of the fixed part.
[0024] As a preferred embodiment of the present application, the two cross beams are each provided with a positioning groove facing the fixed part, the guide rail is at least partially located in the positioning groove, the sliding block is fixedly connected with the fixed part, and the sliding block is in sliding cooperation with the guide rail.
[0025] In the above scheme, the positioning groove is arranged on the cross beam to fix the guide mechanism, so as to limit the relative movement trajectory between the telescopic mechanism and the compartment. By placing the guide rail of the guide mechanism partially or entirely in the positioning groove, the strength of the compartment can be improved while effectively reducing the overall thickness of the compartment and the telescopic mechanism. The sliding block fixed on the fixed part cooperates with the guide rail to slide, so that the telescopic mechanism can move in a direction perpendicular to the telescoping direction.
[0026] As a preferred embodiment of the present application, the positioning groove is a C-shaped groove arranged on the cross beam and having an opening facing the fixed part, the guide rail is arranged on the bottom wall of the C-shaped groove, the sliding block is fixed on the fixed part and in sliding cooperation with the guide rail, and the sliding block is accommodated in the C-shaped groove.
[0027] By arranging the C-shaped groove, the available mounting space of the cross beam is increased while the weight is reduced on the basis of ensuring the structural strength and load-bearing capacity of the cross beam. Accommodating the guide assembly in the C-shaped groove directly avoids occupying more vertical mounting space during installation of the guide assembly, which is conducive to reducing the height of the equipment to better adapt to the needs of heavy truck battery replacement. In addition, the C-shaped groove can also protect the guide assembly and facilitate long-term stable operation of the guide assembly.
[0028] As a preferred embodiment of the present application, in the vertical direction, the lowest point height of the limiting base, the fixed mounting plate and the driving motor is not lower than the height of the lowest point of the cross beam; the limiting base further comprises a matching part arranged at both ends of the limiting base, the matching part extends to the upper part of the C-shaped groove, and the lower part of the matching part is provided with the sliding block.
[0029] In the above scheme, the above structure is conducive to reducing the overall height of the equipment, so that the needs of heavy truck battery replacement can be better met, and the guide assembly is accommodated in the C-shaped groove through the above structure. At the same time, the extension of the matching part to the upper part of the C-shaped groove is also conducive to directly bearing the limiting base by the cross beam when the guide assembly fails, so as to avoid the telescopic mechanism and the battery pack carried thereby from directly falling and being damaged.
[0030] In a second aspect, the present application also provides a battery replacement device, which includes the battery transfer device as described above.
[0031] In the above scheme, by adopting the aforementioned battery transfer device, the battery exchange equipment in this scheme can flexibly adapt to the parking position error of the battery exchange vehicle and facilitate the removal and placement of batteries at different positions in the battery compartment, which is beneficial to improving the battery exchange accuracy and efficiency of the entire battery exchange equipment and improving the versatility of the battery exchange equipment in this scheme.
[0032] As a preferred embodiment of the present application, the battery exchange equipment also includes a battery exchange mechanism provided on the top surface of the telescopic mechanism, and the battery exchange mechanism is driven by the telescopic mechanism to extend into the bottom of the battery exchange vehicle to exchange the battery pack.
[0033] In the above solution, the battery pack transfer and battery pack disassembly functions are integrated by setting the battery replacement mechanism on the top surface of the telescopic mechanism, avoiding the need for separate battery pack disassembly equipment or manual disassembly of the battery pack, greatly improving the battery replacement efficiency and reducing labor intensity and safety risks.
[0034] As a preferred embodiment of the present application, the battery replacement mechanism includes a floating battery tray and an unlocking pin provided on the battery tray;
[0035] The battery tray extends into the bottom of the battery-swapping vehicle through the telescopic movement of the telescopic mechanism, and the unlocking pin unlocks or locks the battery pack as the battery tray rises and falls and the telescopic movement of the telescopic mechanism.
[0036] In the above solution, since the battery tray is a floating design, the floating characteristics of the battery tray allow it to adapt to the shape and state of different battery-swap vehicle chassis, maintain fit with the bottom of the vehicle, and thus achieve stable support for the battery pack. The unlocking pin is brought into contact with the unlocking point of the battery pack as the battery tray rises and falls and the telescopic mechanism moves, thereby unlocking or locking the battery pack, thereby improving the accuracy and efficiency of disassembly and assembly of the battery pack.
[0037] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:
[0038] 1. This solution enables chassis-based battery swapping for heavy trucks. Compared to existing ceiling-mounted battery swapping methods, it significantly reduces the site and equipment requirements for battery swapping stations, significantly reducing land and equipment costs. It also avoids the significant safety hazards posed by placing battery containers close to the cab, which can pose a significant risk to the driver and the vehicle itself.
[0039] 2. In the above scheme, by setting a sliding mechanism to drive the telescopic mechanism to make calibration movements, it can adapt to the different positions of the battery pack installation areas on heavy-duty trucks with different vehicle lengths, which is beneficial to improving the versatility of the battery replacement equipment in this application, and the sliding mechanism is set between the fixed part and the compartment to make full use of the installation space inside the compartment; at the same time, it is also convenient to eliminate the position error between the telescopic mechanism and the heavy-duty truck battery pack installation area caused by the parking position offset, and to facilitate the removal and placement of batteries at different positions in the battery compartment, which is beneficial to improving the battery replacement accuracy and efficiency.
[0040] 3. In the above scheme, the battery exchange equipment in this application integrates the functions of battery transportation and battery exchange operation, eliminating the need for a stacker and a separate battery exchange mechanism within the station. Compared with existing battery exchange stations for passenger car chassis battery exchange, the equipment costs of a stacker and a separate battery exchange mechanism are eliminated. At the same time, through the lifting and rotation of the compartment, the battery transfer device in this application can accurately and efficiently complete the interaction of the battery pack with the battery rack at any position around it and the battery compartment at any height on the battery rack, greatly improving the transportation efficiency of the battery pack and thus improving the battery exchange efficiency. The above scheme is also conducive to the flexible arrangement of battery racks in the battery exchange station, which can make full use of the installation space in the station, improve space utilization, and reduce the requirements for site space. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] 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:
[0042] Figure 1 A schematic diagram of a portion of the structure of a battery transport device in an example;
[0043] Figure 2 This is a partial structural diagram of the battery swap mechanism and the bottom of the compartment in an example;
[0044] Figure 3 This is a partial structural diagram of the battery swap mechanism, sliding mechanism and compartment in an example;
[0045] Figure 4 This is a schematic diagram of the connection structure between the support frame and the car body in an example;
[0046] Figure 5 This is the structural intent of a battery transport device in another example;
[0047] Figure 6 A schematic diagram of the structure of a battery swap mechanism in another example;
[0048] Figure 7 This is an enlarged view of part of the structure of the battery swap mechanism in another example;
[0049] Figure 8 A schematic diagram of a partial structure of a battery-swapping sliding mechanism in an example;
[0050] Figure 9 This is a schematic diagram of the arrangement of battery racks in an example;
[0051] Figure 10 A schematic diagram of the battery rack arrangement in another example.
[0052] List of parts and reference numerals:
[0053] 1 battery transport device, 11 column, 12 compartment, 121 telescopic mechanism, 1211 fixed portion, 12111 fixed mounting plate, 12112 limiting base, 1212 telescopic portion, 122 beam, 1221 positioning slot, 13 moving assembly, 131 slewing bearing, 141 fixed member, 142 moving member, 143 driving motor, 151 guide rail, 152 slider, 161 battery tray, 1611 unlocking pin, 162 bracket, 1621 bracket beam, 16211 hooking lug plate, 1622 bracket longitudinal beam, 171 sliding drive motor, 1721 driving gear, 1722 driven gear, 1723 rack;
[0054] 2 battery holders. 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 specifically defined otherwise, the terms "mounting", "connected", "connection", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, and can also be communication; can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0059] In this application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.
[0060] Referring to Figure 1-10 As shown in the drawings, the application provides a battery transfer device 1 and a battery swap device using the battery transfer device 1. The battery transfer device 1 includes a compartment 12 and a telescopic mechanism 121 arranged in the compartment 12 and movable outwardly and telescopically, and the battery transfer device 1 further includes a sliding mechanism arranged between the telescopic mechanism 121 and the compartment 12, so that the telescopic mechanism 121 moves relative to the compartment 12 in a direction perpendicular to the telescopic direction. The battery swap device, based on the above-mentioned battery device, is provided with a battery swap mechanism on the top surface of the telescopic mechanism 121, and the battery swap mechanism is driven by the telescopic mechanism 121 to extend into the bottom of the battery swap vehicle to perform the battery swap operation. In the above-mentioned scheme, the battery swap device performs the functions of battery transfer and battery swap operation, and eliminates the need for the setting of the in-station stacking machine and the separate battery swap mechanism. Compared with the existing battery swap station for passenger car chassis type battery swap, the battery swap station further eliminates the equipment cost of the stacking machine and the separate battery swap mechanism. At the same time, in the above-mentioned scheme, the sliding mechanism is arranged between the fixed part 1211 and the compartment 12, which can fully utilize the installation space inside the compartment 12. By setting the sliding mechanism to drive the telescopic mechanism 121 to move in calibration, the position difference between the telescopic mechanism 121 and the heavy truck battery pack mounting area caused by the parking position offset can be eliminated, and the batteries at different positions in the battery compartment can be easily taken out and placed, thereby facilitating the improvement of the battery swap precision and efficiency and the improvement of the universality of the battery swap device in the application.
[0061] As a preferred embodiment of the present application, the battery transport device 1 in the present application also includes a support frame, which includes a plurality of columns 11 arranged on the sides of the compartment 12, and also includes a moving component 13 arranged on the column 11 and capable of being lifted and moved relative to the column 11 in the vertical direction. The compartment 12 is rotatably connected to the bottom of the moving component 13 through a slewing bearing 131, so that the compartment 12 can rotate relative to the moving component 13 to adjust the orientation of the telescopic mechanism 121 and the battery exchange mechanism. Through the lifting and rotation of the compartment 12, the battery transport device 1 in the present application can accurately and efficiently complete the interaction of the battery pack with the battery rack 2 at any position on its side and the battery compartment at any height on the battery rack 2, greatly improving the transportation efficiency of the battery pack and thus improving the battery exchange efficiency. The above scheme is also conducive to the flexible arrangement of the battery rack 2 in the battery exchange station, which can make full use of the installation space in the station, further improve the space utilization rate, and reduce the requirements for site space. As in one example, referring to Figure 9 As shown, three rows of battery racks 2 are arranged in a triangular shape on the periphery of the battery transport device 1. This arrangement allows the compartment 12 in the battery transport device 1 of the present application to have a fixed single rotation angle, that is, a single rotation of 90° can achieve a precise turn, which is more convenient for controlling the rotation of the compartment 12; and this arrangement makes the arrangement of the battery racks 3 simple, without the need for additional work such as space measurement and installation angle calculation. In another example, refer to Figure 10 As shown, multiple rows of battery racks 3 are arranged in a polygonal shape around the circumference of the aforementioned battery transport device 1. With this arrangement, the arrangement of the battery racks 3 is more flexible and more conducive to expanding the storage capacity of the battery storage device. At the same time, the above arrangement can also make full use of the installation space inside the battery swap station and improve space utilization. In addition, the above arrangement can also make the compartment 12 in the battery transport device 1 of the present application fixed at a single rotation angle, but it requires precise space measurement and installation angle calculation, and the installation difficulty is relatively higher, and the installation process is relatively more time-consuming and labor-intensive. It should also be noted that the arrangement of the battery racks 3 on the circumference of the battery transport device 1 in the present application is not limited to the above examples. The above examples are only some preferred examples of the present application. Other more different battery rack arrangements can also be adopted, and the present application does not make specific limitations on this.
[0062] Further, refer to Figure 2 and Figure 3 As shown, the sliding mechanism includes a fixed part 141 arranged in the compartment 12 along a direction perpendicular to the telescopic direction and a movable part 142 movably arranged on the fixed part 141. The telescopic mechanism 121 includes a fixed part 1211 connected to the fixed part 141 or the movable part 142 and a telescopic part 1212 movably connected to the fixed part 1211.
[0063] In the above scheme, the function of the telescopic mechanism 121 to move relative to the body 12 in a direction perpendicular to the telescopic direction is achieved through the cooperation of the fixed member 141 and the movable member 142. The telescopic mechanism 121 is provided with a fixed portion 1211. The fixed portion 1211 moves in a direction perpendicular to the telescopic direction between the body 12 and the body 12 via a sliding mechanism, thereby driving the entire telescopic mechanism 121 to move relative to the body 12 in a direction perpendicular to the telescopic direction. The fixed portion 1211 is provided with a telescopic portion 1212. The telescopic portion 1212 can be extended outside the body 12 to remove and place batteries. The telescopic movement function of the telescopic mechanism 121 is achieved through the movable connection between the telescopic portion 1212 and the fixed portion 1211. At the same time, in the above scheme, the sliding mechanism is arranged between the body 12 and the telescopic mechanism 121, which can fully utilize the installation space of the body 12. With this arrangement, the telescopic mechanism 121 is always located directly below the telescopic mechanism 121, which is beneficial for maintaining balance when the telescopic mechanism 121 carries the battery pack.
[0064] Preferably, refer to Figure 4 As shown, the battery transporter 1 also includes a guide mechanism disposed between the body 12 and the telescopic mechanism 121. The guide mechanism comprises a pair of guide rails 151 and sliders 152, one of which is fixed to the body 12, and the other to the telescopic mechanism 121. In this embodiment, the provision of the guide mechanism ensures the stability of the calibration movement path of the telescopic mechanism 121, thereby facilitating improved calibration movement accuracy, enabling the telescopic mechanism 121 to be accurately aligned with the heavy-duty truck battery installation area, and thus completing the battery replacement process accurately and efficiently.
[0065] In one example, referring to Figure 3 As shown, the fixed member 141 is a rack of a preset length, the movable member 142 is a gear, the gear is provided on the telescopic mechanism 121, the rack is provided on the box 12, and the sliding mechanism further includes a drive motor 143 provided on the telescopic mechanism 121 for driving the gear to rotate. Figure 2 and Figure 3 As shown, the drive motor 143 is connected to the adjacent fixed portion 1211 through a fixed mounting plate 12111. A mounting hole is provided on the fixed mounting plate 12111, and the rotating shaft of the drive motor 143 passes through the mounting hole and is connected to the gear; the bottom of the compartment 12 includes a crossbeam 122 arranged in a direction perpendicular to the telescopic direction of the telescopic mechanism 121, and the rack is fixedly connected to the crossbeam 122. The extension direction of the rack is perpendicular to the telescopic direction of the telescopic mechanism 121. The gear is driven to rotate by the drive motor 143 to move relative to the rack, thereby driving the telescopic mechanism 121 to move synchronously.
[0066] In the above scheme, the rack is fixed on the body 12, and the gear is fixed on the telescopic mechanism 121. The gear and the rack are meshed. The gear is driven to rotate by arranging a drive motor 143 on the telescopic mechanism 121. When the gear rotates, an interaction force is generated with the rack. Since the rack is fixed, the gear drives the telescopic mechanism 121 to move relative to the body 12 in a direction perpendicular to the telescopic direction. The meshing of the above-mentioned gear and rack has the advantage of high transmission accuracy. At the same time, the drive motor 143 also has the characteristics of fast response speed and easy control, which is conducive to achieving precise control of the sliding mechanism action to ensure that the telescopic mechanism 121 can be accurately aligned with the battery pack installation area of the battery-swap vehicle. The above-mentioned gear and rack are simple and compact in coordination, especially the small height dimension in the vertical direction, which is conducive to reducing the height of the equipment to better adapt to the battery-swap needs of heavy trucks. At the same time, in the above scheme, the frame structure of the compartment 12 is conducive to reducing the dead weight of the compartment 12 while ensuring its structural strength and load-bearing capacity, and the frame structure is convenient for increasing the available installation height inside the compartment 12 in the vertical direction, which is conducive to reducing the overall height of the equipment to better adapt to the battery replacement needs of heavy trucks, and is also convenient for the fixed installation of the telescopic mechanism 121 and / or the sliding mechanism, reducing the use of additional fasteners to further reduce weight; in addition, the above-mentioned setting method can also make full use of the installation space on the lower part of the compartment 12 and the crossbeam 122, reducing the occupation of the vertical installation space to facilitate the interaction of the telescopic mechanism 121 with other devices and equipment such as battery replacement vehicles for battery packs; and by fixing the rack to the inner wall of the crossbeam 122, it is also beneficial to shorten the transmission distance between the gear and the drive motor 143, thereby helping to reduce the fatigue failure rate of the motor output shaft / drive shaft and extend its service life, and at the same time, it can also achieve a quieter effect.
[0067] Further, refer to Figure 2 and Figure 3 As shown, both ends of the fixing portion 1211 are slidably connected to the crossbeam 122 via a guide mechanism. The two ends of the fixing portion 1211 are located above the crossbeam 122. The lower portion of the fixing portion 1211 includes a downwardly protruding limiting base 12112, and the two ends of the limiting base 12112 are clamped between the two crossbeams 122. In one example, still referring to FIG. 00 , a fixed mounting plate 12111 is disposed between two adjacent limiting bases 12112, and the two ends of the fixed mounting plate 12111 are respectively connected to the limiting bases 12112.
[0068] In the above scheme, the provision of the guide mechanism achieves a sliding connection between the fixed portion 1211 and the crossbeam 122, so that the telescopic mechanism 121 can move in a direction perpendicular to the telescopic direction. The cooperation between the guide mechanism and the crossbeam 122 can also limit the movement trajectory of the telescopic mechanism 121. The provision of the limiting base 12112 and its cooperation with the crossbeam 122 can ensure that the telescopic mechanism 121 can only move in a direction perpendicular to the telescopic direction, thereby further stabilizing the movement trajectory of the telescopic mechanism 121 and preventing angular deviation that affects the accuracy of battery access. In addition, the placement of the fixed mounting plate 12111 between the limiting base 12112 can fully utilize the installation space of the telescopic mechanism 121 and the lower portion of the compartment 12. The use of this arrangement of the fixed mounting plate 12111 can also strengthen the structure of the fixed portion 12111 and improve the structural strength of the fixed portion 12111.
[0069] As a preferred embodiment of this application, refer to Figure 1 As shown, both crossbeams 122 are provided with a positioning groove 1221 facing the fixed portion 1211, the guide rail 151 is at least partially located in the positioning groove 1221, the slider 152 is fixedly connected to the fixed portion 1211, and the slider 152 slides with the guide rail 151. By providing the positioning groove 1221 on the crossbeam 122, the fixed guide mechanism defines the trajectory of relative movement between the telescopic mechanism 121 and the car body 12. Placing part or all of the guide rail 151 in the guide mechanism in the positioning groove 1221 can effectively reduce the overall thickness of the car body 12 and the telescopic mechanism 121 while improving the strength of the car body 12. By sliding with the slider 152 fixed on the fixed portion 1211 and the guide rail 151, the telescopic mechanism 121 can be moved in a direction perpendicular to the telescopic direction. Preferably, continue to refer to Figure 1 As shown, the positioning groove 1221 is a C-shaped groove provided on the crossbeam 122 and opening toward the fixed portion 1211. The guide rail 151 is provided on the bottom wall of the C-shaped groove. The slider 152 is fixed to the fixed portion 1211 and slides with the guide rail 151, and the slider 152 is accommodated inside the C-shaped groove. By providing the C-shaped groove, the available installation space of the crossbeam 122 is increased while ensuring the structural strength and bearing capacity of the crossbeam 122, while also achieving weight reduction. Accommodating the guide assembly in the C-shaped groove directly avoids the guide assembly from occupying more vertical installation space during installation, which is conducive to reducing the height of the equipment to better meet the needs of heavy truck battery replacement. The C-shaped groove can also provide protection for the guide assembly, which is conducive to the long-term stable operation of the guide assembly.
[0070] As a preferred embodiment of the present application, in the actual assembly and use process, along the vertical direction, the lowest point height of the limit base 12112, the fixed mounting plate 12111 and the drive motor 143 is not lower than the lowest point height of the beam 122; the limit base 12112 also includes a matching portion provided at both ends of the limit base 12112, the matching portion extends to the upper part of the C-shaped groove, and the lower part of the matching portion is provided with a slider 152. The adoption of the above structure is conducive to reducing the overall height of the equipment, so that it can better meet the needs of heavy truck battery replacement, and at the same time, the above structure realizes the accommodation of the guide assembly in the C-shaped groove; at the same time, the matching portion extending to the upper part of the C-shaped groove also facilitates the beam 122 to directly support the limit base 12112 when the guide assembly fails, thereby preventing the telescopic mechanism 121 and the battery pack it carries from falling directly and being damaged.
[0071] Further, refer to Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, the battery swap mechanism includes a floating battery tray 161 and an unlocking pin 1611 provided on the battery tray 161; the battery tray 161 is extended into the bottom of the battery swap vehicle through the telescopic movement of the telescopic mechanism 121, and the unlocking pin 1611 unlocks or locks the battery pack as the battery tray 161 rises and falls and the telescopic movement of the telescopic mechanism 121. Since the battery tray 161 is a floating design, the floating characteristics of the battery tray 161 allow it to adapt to the shape and state of different battery swap vehicle chassis, maintaining contact with the bottom of the vehicle, thereby achieving stable support for the battery pack. The unlocking pin 1611 abuts against the unlocking point of the battery pack as the battery tray 161 rises and falls and the telescopic movement of the telescopic mechanism 121, thereby unlocking or locking the battery pack, thereby improving the accuracy and efficiency of disassembly and assembly of the battery pack.
[0072] As a preferred embodiment of the present application, the battery swapping device in the present application further includes a battery swapping sliding mechanism provided between the battery swapping mechanism and the telescopic mechanism 121, so that the battery swapping mechanism moves on the telescopic mechanism 121 in a direction perpendicular to the telescopic direction. In one example, referring to Figure 6 and Figure 8As shown, the battery swap mechanism is arranged on the telescopic mechanism 121 through a bracket 162. Along the telescopic direction of the telescopic mechanism 121, the bracket 162 includes two bracket cross beams 1621 arranged side by side. The bracket cross beam 1621 is perpendicular to the telescopic direction of the telescopic mechanism 121. The two bracket cross beams 1621 are connected by two bracket longitudinal beams 1622. The battery swap mechanism is arranged in a space surrounded by the two bracket cross beams 1621 and the two bracket longitudinal beams 1622. Both ends of the bracket cross beam 1621 are connected with a hanging ear plate. The bracket cross beam 1621 sinks relative to the hanging ear plate, and the hanging ear plate is hung and fixed on the top of the telescopic mechanism 121. The battery exchange mechanism is mounted on two bracket beams 1621. The battery exchange sliding mechanism includes a sliding drive motor 171 and a rack and pinion mechanism. The gears of the rack and pinion mechanism are connected to the output shaft of the sliding drive motor 171. The rack 1723 of the rack and pinion mechanism is installed on the bracket beam 1621. The gears of the rack and pinion mechanism include a driving gear 1721 and a driven gear 1722. The driving gear 1721 is connected to the output shaft of the sliding drive motor 171. The driven gear 1722 is respectively engaged with the driving gear 1721 and the rack 1723, thereby driving the battery exchange mechanism to move through the sliding drive motor 171. Preferably, two racks 1723 and two driven gears 1722 are provided, respectively. The two racks 1723 are respectively provided on the inner side walls of the two bracket cross beams 1621. The two driven gears 1722 are connected to the sliding drive motor 171 through a synchronous shaft. The synchronous shaft is connected to the battery-changing mechanism, and the sliding drive motor 171 is connected to the upper part of the rack 1723 located on the inner side. The above-mentioned battery-changing sliding mechanism is provided so that the battery-changing mechanism can continue to make calibration movements relative to the telescopic mechanism 121 on the basis of making calibration movements relative to the vehicle body 12, thereby better adapting to the different positions of the battery pack installation areas on heavy-duty trucks of different vehicle lengths and the positional error between the battery-changing mechanism and the battery pack installation area of the heavy-duty truck caused by the parking position offset, which is conducive to further improving the accuracy and efficiency of battery replacement.
[0073] Anything not described in this application can be achieved by adopting or drawing on existing technologies.
[0074] 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.
[0075] 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 transport device comprising: The box body and the telescopic mechanism arranged in the box body and capable of telescoping and moving outward are characterized in that the battery transport device also includes a sliding mechanism arranged between the telescopic mechanism and the box body, so that the telescopic mechanism can move relative to the box body in a direction perpendicular to the telescoping direction.
2. The battery transport device according to claim 1, characterized in that: The sliding mechanism includes a fixed part arranged in the compartment along a direction perpendicular to the telescopic direction and a movable part movably arranged on the fixed part. The telescopic mechanism includes a fixed part connected to the fixed part or the movable part and a telescopic part movably connected to the fixed part.
3. The battery transport device according to claim 2, characterized in that: The battery transport device further includes a guide mechanism provided between the carriage and the telescopic mechanism, the guide mechanism including a guide rail and a slider provided in pairs, one of the guide rail and the slider being fixed to the carriage, and the other being fixed to the telescopic mechanism; Preferably, the fixing member is a rack of a preset length, the movable member is a gear, the gear is provided on the telescopic mechanism, the rack is provided on the box body, and the sliding mechanism further includes a drive motor provided on the telescopic mechanism for driving the gear to rotate.
4. A battery transport device according to claim 3, characterized in that: The drive motor is connected to the adjacent fixed part through a fixed mounting plate, and a mounting hole is provided on the fixed mounting plate. The rotating shaft of the drive motor passes through the mounting hole and is connected to the gear; the bottom of the compartment includes a crossbeam arranged in a direction perpendicular to the telescopic direction of the telescopic mechanism, and the rack is fixedly connected to the crossbeam, and the extension direction of the rack is perpendicular to the telescopic direction of the telescopic mechanism. The gear is driven to rotate by the drive motor so that it moves relative to the rack, thereby driving the telescopic mechanism to move synchronously.
5. A battery transport device according to claim 4, characterized in that: Both ends of the fixing portion are slidably connected to the crossbeam through the guide mechanism, the two ends of the fixing portion are located above the crossbeam, and the lower part of the fixing portion includes a downwardly protruding limit base, and the two ends of the limit base are clamped between the two crossbeams; Preferably, the fixed mounting plate is disposed between two adjacent limiting bases, and both ends of the fixed mounting plate are respectively connected to the limiting bases.
6. A battery transport device according to claim 5, characterized in that: The two cross beams are each provided with a positioning groove facing the fixing portion, the guide rail is at least partially located in the positioning groove, the slider is fixedly connected to the fixing portion, and the slider is slidably engaged with the guide rail; Preferably, the positioning groove is a C-shaped groove arranged on the beam and opening toward the fixed part, the guide rail is arranged on the bottom wall of the C-shaped groove, the slider is fixed on the fixed part and slidingly cooperates with the guide rail, and the slider is accommodated inside the C-shaped groove.
7. The battery transport device according to claim 6, characterized in that: In the vertical direction, the lowest point heights of the limit base, the fixed mounting plate and the drive motor are not lower than the lowest point height of the beam; the limit base also includes a matching portion arranged at both ends of the limit base, the matching portion extends to the upper part of the C-shaped groove, and the slider is provided at the lower part of the matching portion.
8. A battery replacement device, characterized in that: The invention comprises the battery transport device according to any one of claims 1 to 7.
9. The battery replacement device according to claim 8, characterized in that: The battery-exchanging equipment also includes a battery-exchanging mechanism disposed on the top surface of the telescopic mechanism, which drives the battery-exchanging mechanism to extend into the bottom of the battery-exchanging vehicle to replace the battery pack.
10. The battery replacement device according to claim 11, characterized in that: The battery replacement mechanism includes a floating battery tray and an unlocking pin provided on the battery tray; The battery tray extends into the bottom of the battery-swapping vehicle through the telescopic movement of the telescopic mechanism, and the unlocking pin unlocks or locks the battery pack as the battery tray rises and falls and the telescopic movement of the telescopic mechanism.