Battery pack transfer and replacement device

Abstract

The present invention relates to a battery pack transport and battery exchange device, comprising a battery exchange vehicle body, and further comprising: a first lifting platform, the first lifting platform being arranged on the top of the battery exchange vehicle body, and a receiving groove being provided on the top of the first lifting platform; a second lifting platform, the second lifting platform being arranged in the receiving groove; an elastic telescopic platform, the elastic telescopic platform being fixedly mounted on the top of the first lifting platform; and two pairs of movable platforms, the movable platforms being provided with clamping and limiting assemblies. In the process of the two movable platforms in the same pair approaching each other, the two clamping and limiting assemblies will be driven to press the top of the battery pack body while overlapping with the edge of the elastic telescopic platform, so that the battery pack body is restricted on the elastic telescopic platform. When vibration occurs, the electric elastic telescopic platform converts the vibration kinetic energy into elastic potential energy through elastic deformation, thereby reducing the transfer of energy to the battery pack body, which is beneficial to reducing the possibility that the inertial impact generated during bumps may cause stress concentration on the contact surface, resulting in surface indentation or structural damage.

Description

Technical Field

[0001] The present invention relates to a battery pack transport and battery replacement device, and in particular to a battery pack transport and battery replacement device. Background Art

[0002] The battery pack transfer and battery swap device technology requires the battery pack to be removed from the bottom of the new energy vehicle, then transported out by a battery pack transfer vehicle, and then the new battery is moved to the bottom of the new energy vehicle and reinstalled. In an open venue rather than a battery swap station, the road conditions are complex and prone to bumps. After the battery pack is received, the battery pack needs to be positioned. However, most existing positioning devices clamp the battery pack on a support table with claws. When on bumpy roads, the battery pack will vibrate, and the clamping point will produce a rigid effect with the battery pack. The inertial impact generated during bumps may cause stress concentration on the contact surface, resulting in surface indentations or structural damage. Summary of the Invention

[0003] Based on this, it is necessary to provide a battery pack transfer and replacement device to address the problem that most existing positioning devices use claws to clamp the battery pack on a support platform. When on bumpy roads, the battery pack will vibrate, and the clamping point will produce a rigid effect on the battery pack. The inertial impact generated during bumps may cause stress concentration on the contact surface, resulting in surface indentations or structural damage.

[0004] The present invention provides a battery pack transport and battery replacement device, comprising a battery replacement vehicle body and:

[0005] A first lifting platform, wherein the first lifting platform is arranged on the top of the battery-swapping vehicle body, and a receiving groove is provided on the top of the first lifting platform;

[0006] a second lifting platform, the second lifting platform being arranged in the accommodating tank;

[0007] an elastic telescopic platform, which is fixedly mounted on the top of the first lifting platform and surrounds the accommodating slot and the second lifting platform;

[0008] Two pairs of movable platforms are respectively slidably arranged on both sides of the first lifting platform. The movable platforms are provided with clamping and limiting components. When the two movable platforms in the same pair approach each other, the two clamping and limiting components will be driven to press the top of the battery pack body while overlapping with the edge of the elastic telescopic platform, so that the battery pack body is restricted on the elastic telescopic platform.

[0009] In one embodiment, electric cylinders are fixedly installed at the four corners of the bottom of the first lifting platform, the output ends of the electric cylinders pass through the first lifting platform and extend into the accommodating groove, and the output ends of the four electric cylinders are fixedly connected to the bottom of the second lifting platform.

[0010] In one embodiment, a driving assembly is provided on the mobile platform, and the driving assembly includes: two tracks, the two tracks are provided on both sides of the first lifting platform, the tracks include two fixed slide rails, two racks and a first motor, the two fixed slide rails are fixedly connected to the top of the battery swap body, and are symmetrically arranged with the first lifting platform as a reference, a track groove is provided between the fixed slide rails and the side of the first lifting platform, the track groove includes a movable section and a fixed section, the fixed section is provided on the fixed slide rail, and the movable section is provided on the side of the first lifting platform;

[0011] A sliding seat is provided for sliding in the track groove, and the sliding seat is fixedly connected to the surface of the movable platform. A driving gear is rotatably connected to the sliding seat. The two racks are respectively fixedly connected to the top ends of the inner walls of the two track grooves, and the two racks are respectively meshed with the driving gear below. The rack includes a fixed rack and a movable rack. The fixed rack is fixedly connected to the inner top surface of the fixed section of the track groove, and the movable rack is fixedly connected to the inner top surface of the movable section of the track groove. The first motor is fixedly mounted on the movable platform, and the output end of the first motor is coaxially fixedly connected to the driving gear.

[0012] In one embodiment, the fixed section and the movable section of the track groove both include a first limiting groove and a second limiting groove, the second limiting groove is opened at the inner top of the first limiting groove, the sliding seat is slidably connected in the first limiting groove, the driving gear is rollingly connected in the second limiting groove, and the rack is fixedly mounted on the inner top surface of the second limiting groove.

[0013] In one embodiment, the clamping limit assembly includes a socket and a lap groove, two support rods are slidably plugged into the socket, the socket is fixedly connected to the top of the movable platform, the tops of the two support rods are fixedly connected to a lower pressure seat, and a first spring is sleeved on the surface of the two support rods, the two ends of the first spring are respectively fixedly connected to the lower pressure seat and the socket, the top of the lower pressure seat is rotatably connected to a first rubber roller, the lap groove is opened at the top edge of the elastic telescopic platform, a plug-in body is fixedly installed on the lower pressure seat, and the plug-in body is slidably docked with the lap groove.

[0014] In one embodiment, a connecting shaft is rotatably connected to the top surface of the socket, and a second rubber roller is sleeved on the surface of the connecting shaft.

[0015] In one embodiment, a sleeve groove is formed at the end of the second rubber roller, a damping ring is fixedly connected in the sleeve groove, the damping ring is sleeved on the surface of the connecting shaft, and the inner ring surface of the damping ring is in friction contact with the surface of the connecting shaft.

[0016] In one embodiment, ventilation channels are opened between both ends of the second lifting platform and the first lifting platform, and the ventilation channels include a first channel and a second channel. The first channel runs from the end of the second lifting platform to the top of the second lifting platform, and the second channel runs from the end of the first lifting platform to the accommodating groove, and the second channel is connected to the first channel.

[0017] In one embodiment, the elastic telescopic platform includes a fixed ring and a movable ring, the movable ring is slidably inserted into the fixed ring, a buffer spring is fixedly connected between the bottom of the movable ring and the top of the first lifting platform, and the overlapping groove is opened at the edge of the movable ring.

[0018] In one embodiment, the battery-exchanging vehicle body is provided with an installation groove, and two lifters are provided in the installation groove, and the lifters are used to adjust the height of the first lifting platform.

[0019] The above-mentioned battery pack transfer and battery exchange device, when the two mobile platforms are approaching each other, will drive the two clamping and limiting components to press the top of the battery pack body while overlapping with the edge of the elastic telescopic platform, so that the battery pack body is restricted on the elastic telescopic platform. When vibration occurs, the electric elastic telescopic platform converts the vibration kinetic energy into elastic potential energy through elastic deformation, reducing the transfer of energy to the battery pack body, which is beneficial to reducing the inertial impact generated during bumps, which may cause stress concentration on the contact surface, resulting in the possibility of surface indentation or structural damage.

[0020] The plug-in seat is driven to move by the moving platform, and the plug-in seat synchronously drives the lower pressure seat to move until the first rubber roller rolls and presses down to the top of the battery pack body, thereby limiting the top of the battery pack body, and the plug-in body docks with the upper overlapping groove, so that the distance between the top of the elastic telescopic platform and the first rubber roller is limited, so that the battery pack body is limited between the elastic telescopic platform and the first rubber roller. On the one hand, it prevents the battery pack body from detaching from the top of the first lifting platform, thereby limiting the battery pack body and preventing it from slipping. On the other hand, during vibration, the deformation of the first spring and the elastic telescopic platform converts the vibration kinetic energy into elastic potential energy through elastic deformation, thereby reducing the transfer of energy to the battery pack body.

[0021] When the two movable platforms in the same pair approach each other, the connecting shaft on the socket synchronously drives the second rubber roller to move until the two second rubber rollers clamp and limit the two ends of the fixed body on the side of the battery pack main body, completing the lateral limitation of the battery pack main body, so that the battery pack main body and the top of the elastic telescopic platform are relatively stable, and through the support and limitation of the first rubber roller, the second rubber roller and the elastic telescopic platform, the limiting contact points are all elastic contacts, which is conducive to avoiding rigid damage to the surface of the battery pack main body caused by rigid contact.

[0022] When the battery pack body vibrates, the elastic telescopic platform, the battery pack body and the first rubber roller as a whole will swing up and down, and the damping ring will generate friction damping with the surface of the connecting shaft, and the mechanical vibration energy will be converted into heat energy dissipation, which ensures that the second rubber roller clamps and limits the fixed body of the battery pack body and realizes the damping of mechanical vibration.

[0023] When the space formed between the battery pack main body and the elastic telescopic platform and the second lifting platform becomes larger, the external air will pass through the second channel and the first channel in sequence under the action of atmospheric pressure and enter the space formed between the battery pack main body and the accommodating groove and the second lifting platform. When the space formed between the battery pack main body and the elastic telescopic platform and the second lifting platform becomes smaller, the gas in the space formed between the battery pack main body and the elastic telescopic platform and the second lifting platform will pass through the first channel and the second channel and be discharged. On the one hand, the circulation of gas in the channel will generate friction resistance, which has a damping effect on vibration. On the other hand, by replacing the gas in the space at the bottom of the battery pack main body, it is beneficial to dissipate heat from the bottom of the battery pack main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the first overall structure of the present invention;

[0026] Figure 2 for Figure 1 Enlarged view of part A;

[0027] Figure 3 It is a partial structural schematic diagram of the present invention;

[0028] Figure 4 for Figure 3 Enlarged view of part B;

[0029] Figure 5 for Figure 3 Enlarged view of part C in the middle;

[0030] Figure 6 It is a structural cross-sectional view of the first lifting platform of the present invention;

[0031] Figure 7 for Figure 6 Enlarged view of part D in the middle;

[0032] Figure 8 It is a structural schematic diagram of the first lifting platform of the present invention;

[0033] Figure 9 A schematic structural diagram of the elastic telescopic table of the invention;

[0034] Figure 10 This is a schematic diagram of the first structure of the clamping and limiting assembly of the invention;

[0035] Figure 11 This is a second structural schematic diagram of the clamping and limiting assembly of the invention.

[0036] Reference numerals:

[0037] Battery swap body 1, mounting groove 101, first lifting platform 2, accommodating groove 3, second lifting platform 4, elastic telescopic platform 5, fixed ring 501, movable ring 502, buffer spring 503, moving platform 6, second motor 7, threaded rod 8, electric cylinder 9, vent 10, fixed slide rail 11, track groove 12, movable section 1201, fixed section 1202, first limiting groove 1203, second limiting groove 1204, sliding seat 13, driving gear 14, fixed rack 15, movable rack 16, first motor 17, socket 18, support rod 19, first spring 20, lower pressure seat 21, first rubber roller 22, socket body 23, overlap groove 24, connecting shaft 25, second rubber roller 26, sleeve groove 27, damping ring 28, ventilation channel 29, first channel 2901, second channel 2902, side baffle 30, first lifting rod 31, battery pack main body 32, fixed body 3201, second lifting rod 33, first connecting seat 34, second connecting seat 35. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0039] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] Unless otherwise defined, all technical and scientific terms used in the present description have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this description are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used in this description includes any and all combinations of one or more of the associated listed items.

[0043] In order to better understand the embodiments of the present invention, the following explanations are made:

[0044] A fixing body 3201 is fixedly provided on both side walls of the battery pack main body 32 , and both ends of the fixing body 3201 are provided with inclined surfaces.

[0045] Based on the above explanation, the following Figures 1-11 The battery pack transport and replacement device of the present invention is described.

[0046] like Figures 1 to 11 As shown, in one embodiment, a battery pack transport and battery swapping device includes a battery swapping vehicle body 1 and further includes:

[0047] The first lifting platform 2 is arranged on the top of the battery-swapping vehicle body 1, and a receiving groove 3 is provided on the top of the first lifting platform 2;

[0048] A second lifting platform 4, which is arranged in the receiving tank 3;

[0049] An elastic telescopic platform 5 is fixedly mounted on the top of the first lifting platform 2 and surrounds the accommodating slot 3 and the second lifting platform 4;

[0050] Two pairs of movable platforms 6 are slidably arranged on both sides of the first lifting platform 2. The movable platforms 6 are provided with clamping and limiting components. When the two movable platforms 6 in the same pair approach each other, the two clamping and limiting components are driven to press the top of the battery pack body 32 while overlapping with the edge of the elastic telescopic platform 5, so that the battery pack body 32 is restricted on the elastic telescopic platform 5.

[0051] Specifically, a mounting groove 101 is provided on the top of the battery swapping vehicle body 1, and two lifters are provided in the mounting groove 101, and the lifters are used to adjust the height of the first lifting platform 2;

[0052] Specifically, the lifter includes a second motor 7, a first lifting rod 31 and a second lifting rod 33. The first lifting rod 31 and the second lifting rod 33 are cross-rotatingly connected. The bottom end of the first lifting rod 31 is rotatably connected to the inner wall of the mounting groove 101. The top end of the first lifting rod 31 is rotatably connected to the first connecting seat 34. The first connecting seat 34 is slidably connected to the bottom of the first lifting platform 2. The top end of the second lifting rod 33 is rotatably connected to the bottom of the first lifting platform 2. The bottom end of the second lifting rod 33 is rotatably connected to the second connecting seat 35. The second connecting seat 35 is slidably connected to the inner bottom surface of the mounting groove 101. The second connecting seat 35 is threadedly connected to a threaded rod 8. The second motor 7 is fixedly installed in the mounting groove 101, and the output end is fixedly connected to the end of the threaded rod 8. It should be understood that when the height of the first lifting platform 2 needs to be adjusted, the second motor 7 is started, the second motor 7 drives the threaded rod 8 to rotate, the threaded rod 8 drives the second connecting seat 35 to move, and the second connecting seat 35 moves the bottom end of the second lifting rod 33, so that the cross-arranged first lifting rod 31 and the second lifting rod 33 are linked, thereby realizing the adjustment of the height of the first lifting platform 2.

[0053] Electric cylinders 9 are fixedly mounted at the four corners of the bottom of the first lifting platform 2. The output ends of the electric cylinders 9 extend through the first lifting platform 2 and into the receiving tank 3. The output ends of the four electric cylinders 9 are fixedly connected to the bottom of the second lifting platform 4. Specifically, a vent 10 is provided on the bottom surface of the receiving tank 3 to provide a pressure relief channel for the second lifting platform 4 to move within the receiving tank 3.

[0054] Side baffles 30 are fixedly mounted on both sides of the inner wall of the mounting groove 101 .

[0055] It should be understood that when removing the battery pack main body 32, the battery swap body 1 is moved to the bottom of the car chassis, and then moved close to the car chassis by the first lifting platform 2. Then, the second lifting platform 4 is moved to support the bottom of the battery pack main body 32 to support the battery pack main body 32. Then, after the battery pack main body 32 is removed from the car chassis, the height is lowered by the second lifting platform 4, and the battery pack main body 32 is taken to the top of the elastic telescopic platform 5. The second lifting platform 4 is finally lowered into the accommodating slot 3 to realize the removal of the battery pack main body 32. When installing the battery pack main body 32, the battery pack main body 32 supported on the elastic telescopic platform 5 is lifted to the vicinity of the new energy vehicle chassis by the first lifting platform 2, and then the battery pack main body 32 is lifted and attached to the new energy vehicle chassis by the second lifting platform 4. Then, the battery pack main body 32 is fixed to the new energy vehicle chassis. It is supported by the second lifting platform 4 to reduce the obstruction of the bottom of the battery pack main body 32 and provide space for disassembly and assembly;

[0056] During the process of the battery swap body 1 receiving the battery pack body 32, after the second lifting platform 4 receives the removed battery pack body 32 onto the elastic telescopic platform 5, the battery pack body 32 is flexibly supported by the elastic telescopic platform 5, and a space is formed between the elastic telescopic platform 5 and the second lifting platform 4, so that the edge of the battery pack body 32 is supported, reducing the impact on the battery cells inside the battery pack body 32. Then, in the process of the two pairs of moving platforms 6 approaching each other, the two clamping limit assemblies will be driven to press the top of the battery pack body 32 while overlapping with the edge of the elastic telescopic platform 5, so that the battery pack body 32 is restricted on the elastic telescopic platform 5. When vibration occurs, the electric elastic telescopic platform 5 converts the vibration kinetic energy into elastic potential energy through elastic deformation, reducing the transfer of energy to the battery pack body 32, which is beneficial to avoid the inertial impact caused by bumps, which may cause stress concentration on the contact surface, resulting in surface indentation or structural damage.

[0057] like Figure 3 、 Figure 4 、 Figure 5 and Figure 8 As shown, in one embodiment, the mobile station 6 is provided with a driving component, which includes:

[0058] Two tracks, two tracks are arranged on both sides of the first lifting platform 2, the tracks include two fixed slide rails 11, two racks and a first motor 17, the two fixed slide rails 11 are fixedly connected to the top of the battery swap body 1, and are symmetrically arranged with the first lifting platform 2 as a reference, a track groove 12 is opened between the fixed slide rails 11 and the side of the first lifting platform 2, the track groove 12 includes a movable section 1201 and a fixed section 1202, the fixed section 1202 is opened on the fixed slide rail 11, and the movable section 1201 is opened on the side of the first lifting platform 2;

[0059] A sliding seat 13 is slidingly provided in the track groove 12, and the sliding seat 13 is fixedly connected to the surface of the moving platform 6. A driving gear 14 is rotatably connected to the sliding seat 13. The two racks are respectively fixedly connected to the top of the inner walls of the two track grooves 12, and the two racks are respectively engaged with the driving gear 14 below. The rack includes a fixed rack 15 and a movable rack 16. The fixed rack 15 is fixedly connected to the inner top surface of the fixed section 1202 of the track groove 12, and the movable rack 16 is fixedly connected to the inner top surface of the movable section 1201 of the track groove 12. The first motor 17 is fixedly installed on the moving platform 6, and the output end of the first motor 17 is coaxially fixedly connected to the driving gear 14.

[0060] It should be understood that, under the premise that the first lifting platform 2 needs to be height-adjusted to receive or lift the battery pack body 32 for installation, the first motor 17 can be used to drive the driving gear 14 to rotate, and the driving gear 14 moves on the rack, thereby causing the movable platform 6 to move to the fixed rack 15, and the sliding seat 13 to move to the fixed section 1202 of the track groove 12, and the sliding seat 13 drives the clamping limit assembly to leave the first lifting platform 2, so that the top of the first lifting platform 2 maintains an open space when the battery pack body 32 is detached or carried.

[0061] like Figure 3 、 Figure 4 and Figure 5 As shown, in one embodiment, the fixed section 1202 and the movable section 1201 of the track groove 12 each include a first limiting groove 1203 and a second limiting groove 1204. The second limiting groove 1204 is located at the inner top of the first limiting groove 1203. The sliding seat 13 is slidably connected within the first limiting groove 1203. The driving gear 14 is rollingly connected within the second limiting groove 1204. The rack is fixedly mounted on the inner top surface of the second limiting groove 1204. It should be understood that through the connection between the first limiting groove 1203 and the sliding seat 13 and the movement of the driving gear 14 within the second limiting groove 1204, the sliding seat 13 is restricted within the track groove 12, preventing the sliding seat 13 from disengaging, thereby achieving stable support for the moving platform 6 and the clamping and limiting assembly.

[0062] like Figure 3 、 Figure 4 、 Figure 10 and Figure 11As shown, in one embodiment, the clamping limit assembly includes a socket 18 and a lap groove 24, two support rods 19 are slidably plugged into the socket 18, the socket 18 is fixedly connected to the top of the movable platform 6, the tops of the two support rods 19 are fixedly connected to a lower pressure seat 21, and a first spring 20 is sleeved on the surface of the two support rods 19, and the two ends of the first spring 20 are respectively fixedly connected to the lower pressure seat 21 and the socket 18, and the top of the lower pressure seat 21 is rotatably connected to a first rubber roller 22, and the lap groove 24 is opened at the top edge of the elastic telescopic platform 5, and a plug-in body 23 is fixedly installed on the lower pressure seat 21, and the plug-in body 23 is slidably docked with the lap groove 24. It should be understood that after the battery pack body 32 is received by the second lifting platform 4 and placed on the elastic telescopic platform 5, the battery pack body 32 is lowered to the position on the top of the battery swap body 1 by the first lifting platform 2, and then the plug-in seat 18 is driven to move by the moving platform 6, and the plug-in seat 18 simultaneously drives the lower pressure seat 21 to move until the first rubber roller 22 rolls down to the top of the battery pack body 32, thereby limiting the top of the battery pack body 32, and the plug-in body 23 docks with the upper overlapping groove 24, so that the distance between the top of the elastic telescopic platform 5 and the first rubber roller 22 is limited, so that the battery pack body 32 is limited between the elastic telescopic platform 5 and the first rubber roller 22. On the one hand, it prevents the battery pack body 32 from detaching from the top of the first lifting platform 2, thereby limiting the battery pack body 32 and preventing it from slipping. On the other hand, during vibration, the deformation of the first spring 20 and the elastic telescopic platform 5 converts the vibration kinetic energy into elastic potential energy through elastic deformation, thereby reducing the transfer of energy to the battery pack body 32.

[0063] like Figure 3 and Figure 4 As shown, in one embodiment, a connecting shaft 25 is rotatably connected to the top surface of the socket 18, and a second rubber roller 26 is sleeved on the surface of the connecting shaft 25. It should be understood that as the two movable platforms 6 in the same pair approach each other, the connecting shaft 25 on the socket 18 synchronously drives the second rubber rollers 26 to move until the two second rubber rollers 26 clamp and limit the two ends of the fixed body 3201 on the side of the battery pack body 32, completing the lateral limit of the battery pack body 32, so that the battery pack body 32 and the top of the elastic telescopic platform 5 are relatively stable. In addition, through the support and limit of the first rubber roller 22, the second rubber roller 26 and the elastic telescopic platform 5, the limit contact points are all elastic contacts, which helps to avoid rigid damage to the surface of the battery pack body 32 caused by rigid contact.

[0064] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 11As shown, in one embodiment, a sleeve groove 27 is formed through the end of the second rubber roller 26. A damping ring 28 is fixedly connected to the sleeve groove 27. The damping ring 28 is sleeved on the surface of the connecting shaft 25, and the inner ring surface of the damping ring 28 is in frictional contact with the surface of the connecting shaft 25. It should be understood that when the battery pack body 32 vibrates, the elastic telescopic platform 5, the battery pack body 32, and the first rubber roller 22 as a whole will rock up and down. The damping ring 28 will generate frictional damping with the surface of the connecting shaft 25, converting the mechanical vibration energy into heat energy and dissipating it. This ensures that the second rubber roller 26 clamps and limits the fixed body 3201 of the battery pack body 32, while also achieving mechanical vibration damping.

[0065] like Figure 6 As shown, in one embodiment, ventilation channels 29 are opened between both ends of the second lifting platform 4 and the first lifting platform 2. The ventilation channels 29 include a first channel 2901 and a second channel 2902. The first channel 2901 passes through from the end of the second lifting platform 4 to the top of the second lifting platform 4, and the second channel 2902 passes through from the end of the first lifting platform 2 to the accommodating groove 3, and the second channel 2902 is connected to the first channel 2901. It should be understood that after the first lifting platform 2 moves into the accommodating groove 3, the second channel 2902 and the first channel 2901 will be connected and connected. When the elastic telescopic platform 5 is extended or retracted, the space formed between the battery pack main body 32 and the accommodating groove 3 and the second lifting platform 4 will change. Then, under the action of atmospheric pressure, when the space formed between the battery pack main body 32 and the elastic telescopic platform 5 and the second lifting platform 4 becomes larger, the external air will pass through the second channel 2902 and the first channel 2901 in sequence under the action of atmospheric pressure and enter the space formed between the battery pack main body 32 and the accommodating groove 3 and the second lifting platform 4. When the space formed between the battery pack main body 32 and the elastic telescopic platform 5 and the second lifting platform 4 becomes smaller, the gas in the space formed between the battery pack main body 32 and the elastic telescopic platform 5 and the second lifting platform 4 will pass through the first channel 2901 and the second channel 2902 and be discharged. On the one hand, the circulation of gas in the ventilation channel 29 will generate friction resistance, which has a damping effect on vibration. On the other hand, by replacing the gas in the space at the bottom of the battery pack main body 32, it is beneficial to dissipate heat from the bottom of the battery pack main body 32.

[0066] like Figure 6 and Figure 9 As shown, in one embodiment, the elastic telescopic platform 5 includes a fixed ring 501 and a movable ring 502. The movable ring 502 is slidably inserted into the fixed ring 501. A buffer spring 503 is fixedly connected between the bottom of the movable ring 502 and the top of the first lifting platform 2. The overlapping groove 24 is opened at the edge of the movable ring 502.

[0067] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A battery pack transport and battery replacement device, comprising a battery replacement vehicle body (1), characterized in that: Also includes: A first lifting platform (2), the first lifting platform (2) being arranged on the top of the battery-exchanging vehicle body (1), and a receiving groove (3) being provided on the top of the first lifting platform (2); a second lifting platform (4), the second lifting platform (4) being arranged in the accommodating groove (3); An elastic telescopic platform (5), the elastic telescopic platform (5) is annular, the elastic telescopic platform (5) is fixedly mounted on the top of the first lifting platform (2), and surrounds the accommodating groove (3) and the second lifting platform (4), and the top surface of the elastic telescopic platform (5) is used to support the battery pack body (32); Two pairs of movable platforms (6), the two pairs of movable platforms (6) are respectively slidably arranged on both sides of the first lifting platform (2), and the movable platforms (6) are provided with clamping and limiting components. When the two pairs of movable platforms (6) approach each other, the two clamping and limiting components are driven to press the top of the battery pack body (32) while overlapping with the edge of the elastic telescopic platform (5), so that the battery pack body (32) is restricted on the elastic telescopic platform (5); The mobile station (6) is provided with a driving component, and the driving component comprises: Two tracks, the two tracks are arranged on both sides of the first lifting platform (2), the tracks include two fixed slide rails (11), two racks and a first motor (17), the two fixed slide rails (11) are fixedly connected to the top of the battery exchange vehicle body (1), and are symmetrically arranged with the first lifting platform (2) as a reference, a track groove (12) is provided between the fixed slide rails (11) and the side of the first lifting platform (2), the track groove (12) includes a movable section (1201) and a fixed section (1202), the fixed section (1202) is provided on the fixed slide rail (11), and the movable section (1201) is provided on the side of the first lifting platform (2); A sliding seat (13) is slidably provided in the track groove (12), the sliding seat (13) is fixedly connected to the surface of the moving platform (6), a driving gear (14) is rotatably connected to the sliding seat (13), the two racks are respectively fixedly connected to the top of the inner wall of the two track grooves (12), and the two racks are respectively engaged with the driving gear (14) below, the racks include a fixed rack (15) and a movable rack (16), the fixed rack (15) is fixedly connected to the inner top surface of the fixed section (1202) of the track groove (12), and the movable rack (16) is fixedly connected to the inner top surface of the movable section (1201) of the track groove (12), the first motor (17) is fixedly mounted on the moving platform (6), and the output end of the first motor (17) is coaxially fixedly connected to the driving gear (14); The clamping limit assembly includes a socket (18) and a lap groove (24), two support rods (19) are slidably plugged into the socket (18), the socket (18) is fixedly connected to the top of the movable platform (6), the tops of the two support rods (19) are fixedly connected to a lower pressure seat (21), and a first spring (20) is sleeved on the surface of the two support rods (19), the two ends of the first spring (20) are respectively fixedly connected to the lower pressure seat (21) and the socket (18), the top of the lower pressure seat (21) is rotatably connected to a first rubber roller (22), the lap groove (24) is opened at the top edge of the elastic telescopic platform (5), a plug-in body (23) is fixedly installed on the lower pressure seat (21), and the plug-in body (23) is slidably docked with the lap groove (24).

2. The battery pack transport and replacement device according to claim 1, characterized in that: Electric cylinders (9) are fixedly installed at the four corners of the bottom of the first lifting platform (2), and the output ends of the electric cylinders (9) pass through the first lifting platform (2) and extend into the accommodating groove (3). The output ends of the four electric cylinders (9) are fixedly connected to the bottom of the second lifting platform (4).

3. The battery pack transport and replacement device according to claim 1, characterized in that: The fixed section (1202) and the movable section (1201) of the track groove (12) both include a first limiting groove (1203) and a second limiting groove (1204), wherein the second limiting groove (1204) is provided at the inner top of the first limiting groove (1203), the sliding seat (13) is slidably connected in the first limiting groove (1203), the driving gear (14) is rollingly connected in the second limiting groove (1204), and the rack is fixedly mounted on the inner top surface of the second limiting groove (1204).

4. The battery pack transport and replacement device according to claim 1, characterized in that: A connecting shaft (25) is rotatably connected to the top surface of the socket (18), and a second rubber roller (26) is sleeved on the surface of the connecting shaft (25).

5. The battery pack transport and replacement device according to claim 4, characterized in that: A sleeve groove (27) is formed through the end of the second rubber roller (26), a damping ring (28) is fixedly connected in the sleeve groove (27), and the damping ring (28) is sleeved on the surface of the connecting shaft (25), and the inner ring surface of the damping ring (28) is in friction contact with the surface of the connecting shaft (25).

6. The battery pack transport and replacement device according to claim 5, characterized in that: A ventilation channel (29) is provided between both ends of the second lifting platform (4) and the first lifting platform (2), and the ventilation channel (29) includes a first channel (2901) and a second channel (2902). The first channel (2901) passes through from the end of the second lifting platform (4) to the top of the second lifting platform (4), and the second channel (2902) passes through from the end of the first lifting platform (2) to the accommodating groove (3), and the second channel (2902) is connected to the first channel (2901).

7. The battery pack transport and replacement device according to claim 6, characterized in that: The elastic telescopic platform (5) comprises a fixed ring (501) and a movable ring (502), wherein the movable ring (502) is slidably inserted into the fixed ring (501), a buffer spring (503) is fixedly connected between the bottom of the movable ring (502) and the top of the first lifting platform (2), and the overlapping groove (24) is provided at the edge of the movable ring (502).

8. The battery pack transport and replacement device according to claim 7, characterized in that: The battery-exchanging vehicle body (1) is provided with a mounting groove (101), and two lifters are provided in the mounting groove (101), and the lifters are used to adjust the height of the first lifting platform (2).

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