Battery pack transferring and replacing device

Abstract

The invention relates to a battery pack transferring and battery replacing device which comprises a battery replacing vehicle body and further comprises a first lifting table, a second lifting table, a battery replacing device and a battery replacing device. The second lifting table is arranged in the accommodating groove; the elastic telescopic table is fixedly mounted at the top of the first lifting table; and the two pairs of moving tables are provided with clamping and limiting assemblies. In the process that the two moving tables in the same pair get close to each other, the two clamping and limiting assemblies are driven to press the top of the battery pack main body and are in lap joint with the edge of the elastic telescopic table, so that the battery pack main body is limited on the elastic telescopic table; the electric elastic telescopic table converts vibration kinetic energy into elastic potential energy through elastic deformation, transmission of the energy to the battery pack body is reduced, and the possibility of surface indentation or structural damage caused by stress concentration of a contact surface possibly caused by inertial impact generated during bumping is reduced advantageously.

Description

Technical Field

[0001] The present invention relates to a battery pack transfer and swapping device, and particularly to a battery pack transfer and swapping device. Background Art

[0002] In the technology of battery pack transfer and swapping devices, it is necessary to disassemble the battery pack from the bottom of a new energy vehicle, then transport it out by a battery pack transfer vehicle, and then move the new battery to the bottom of the new energy vehicle for reinstallation. In the case of an open site rather than a swapping station, the road surface conditions are complex and prone to jolts. After receiving the battery pack, it is necessary to position the battery pack. However, most of the existing positioning devices clamp the battery pack on a support table through clamping jaws. When driving on bumpy roads, the battery pack will vibrate, and the clamping points will have a rigid effect on the battery pack. The inertial impact generated during jolts may cause stress concentration on the contact surface, resulting in surface indentations or structural damage. Summary of the Invention

[0003] Based on this, in view of the problem that most of the existing positioning devices clamp the battery pack on a support table through clamping jaws, when driving on bumpy roads, the battery pack will vibrate, and the clamping points will have a rigid effect on the battery pack. The inertial impact generated during jolts may cause stress concentration on the contact surface, resulting in surface indentations or structural damage, it is necessary to provide a battery pack transfer and swapping device.

[0004] A battery pack transfer and swapping device provided by the present invention includes a swapping vehicle body, and further includes:

[0005] A first lifting platform, which is arranged on the top of the swapping vehicle body, and a receiving groove is opened on the top of the first lifting platform;

[0006] A second lifting platform, which is arranged in the receiving groove;

[0007] An elastic telescopic platform, which is fixedly installed on the top of the first lifting platform and surrounds the receiving groove and the second lifting platform;

[0008] Two pairs of moving platforms, which are respectively slidably arranged on both sides of the first lifting platform. A clamping and limiting assembly is arranged on the moving platform. During the process of the two moving platforms in the same pair approaching each other, they will drive the two clamping and limiting assemblies to press the top of the battery pack main body, and at the same time, lap with the edge of the elastic telescopic platform, so that the battery pack main 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 penetrate through the first lifting platform and extend into the receiving 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 component is provided on the mobile platform. The driving component includes: two tracks. The two tracks are arranged 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-changing vehicle body and are symmetrically arranged with reference to the first lifting platform. A track groove is formed between the fixed slide rail and the side of the first lifting platform. The track groove includes a movable section and a fixed section. The fixed section is formed on the fixed slide rail, and the movable section is formed on the side of the first lifting platform.

[0011] A sliding seat is slidably arranged in the track groove. The sliding seat is fixedly connected to the surface of the mobile 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. The two racks are respectively engaged with the driving gears 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 installed on the mobile platform, and the output end of the first motor is coaxially and fixedly connected to the driving gear.

[0012] In one embodiment, both the fixed section and the movable section of the track groove include a first limiting groove and a second limiting groove. The second limiting groove is formed at the inner top end 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 installed on the inner top surface of the second limiting groove.

[0013] In one embodiment, the clamping and limiting component includes a plug-in seat and a lapping groove. Two support rods are slidably inserted into the plug-in seat. The plug-in seat is fixedly connected to the top end of the mobile platform. The tops of the two support rods are fixedly connected with a pressing seat. First springs are sleeved on the surfaces of the two support rods. The two ends of the first spring are respectively fixedly connected to the pressing seat and the plug-in seat. A first rubber roller is rotatably connected to the top end of the pressing seat. The lapping groove is formed at the top edge of the elastic telescopic platform. A plug-in body is fixedly installed on the pressing seat, and the plug-in body is slidably docked with the lapping groove.

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

[0015] In one embodiment, a socket groove is formed through the end of the second rubber roller. A damping ring is fixedly connected in the socket groove. The damping ring is sleeved on the surface of the connecting shaft, and the inner ring surface of the damping ring is in frictional 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 will shake up and down as a whole. The damping ring will generate frictional damping with the surface of the connecting shaft, and the mechanical vibration energy will be dissipated as heat energy, that is, while ensuring that the second rubber roller clamps and limits the battery pack body fixing body, it also realizes the damping of mechanical vibration.

[0023] When the space between the battery pack body, the elastic telescopic platform and the second lifting platform becomes larger, the external air will enter the space formed between the battery pack body, the receiving groove and the second lifting platform in turn through the second channel and the first channel under the action of atmospheric pressure. When the space between the battery pack body, the elastic telescopic platform and the second lifting platform becomes smaller, the gas in the space formed between the battery pack body, the elastic telescopic platform and the second lifting platform will be discharged through the first channel and the second channel. On the one hand, the flow of gas in the channel will generate frictional resistance, which has a damping effect on vibration. On the other hand, by replacing the gas in the bottom space of the battery pack body, it is beneficial to dissipate heat from the bottom of the battery pack body. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

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

[0026] Figure 2 It is Figure 1 The enlarged view of part A in

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

[0028] Figure 4 It is Figure 3 The enlarged view of part B in

[0029] Figure 5 It is Figure 3 The enlarged view of part C in

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

[0031] Figure 7 It is Figure 6 The enlarged view of part D in

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

[0033] Figure 9 Schematic structural diagram of the elastic telescopic platform of the invention;

[0034] Figure 10 First schematic structural diagram of the clamping and limiting component of the invention;

[0035] Figure 11 Second schematic structural diagram of the clamping and limiting component of the invention.

[0036] Reference numerals:

[0037] Battery swapping vehicle body 1, installation groove 101, first lifting platform 2, accommodation 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, ventilation port 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, plug-in seat 18, support rod 19, first spring 20, pressing seat 21, first rubber roller 22, plug-in body 23, overlapping groove 24, connecting shaft 25, second rubber roller 26, socket 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 implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope 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 can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present invention are only for the purpose of illustration and do not represent the only implementation manners.

[0040] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present invention, unless otherwise clearly specified and defined, the first feature may be in direct contact with the second feature or indirectly contact the second feature through an intermediate medium when the first feature is "on" or "under" the second feature. Moreover, the first feature being "above", "over" or "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" or "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

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

[0043] For a better understanding of the embodiments of the present invention, the following explanations are made:

[0044] Fixing bodies 3201 are fixedly arranged on both side walls of the battery pack main body 32, and inclined surfaces are provided at both ends of the fixing bodies 3201.

[0045] Based on the above explanations, the following combines Figures 1 - 11 to describe the battery pack transfer and swapping device of the present invention.

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

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

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

[0049] An elastic telescopic platform 5, the elastic telescopic platform 5 is fixedly installed on the top of the first lifting platform 2 and surrounds the receiving groove 3 and the second lifting platform 4;

[0050] Two pairs of mobile stations 6 are respectively and slidably arranged on both sides of the first lifting platform 2. A clamping and limiting component is arranged on the mobile station 6. During the process of the two mobile stations 6 in the same pair approaching each other, they will drive the two clamping and limiting components to press the top of the battery pack main body 32 while lapping with the edge of the elastic telescopic platform 5, so that the battery pack main body 32 is restricted on the elastic telescopic platform 5;

[0051] Specifically, an installation groove 101 is opened at the top of the battery swapping vehicle body 1, and two elevators are arranged in the installation groove 101. The elevators are used to adjust the height of the first lifting platform 2;

[0052] Specifically, the elevator 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-rotationally connected. The bottom end of the first lifting rod 31 is rotationally connected to the inner wall of the installation groove 101. The top end of the first lifting rod 31 is rotationally connected to a 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 rotationally connected to the bottom of the first lifting platform 2. The bottom end of the second lifting rod 33 is rotationally connected to a second connecting seat 35. The second connecting seat 35 is slidably connected to the inner bottom surface of the installation groove 101. A threaded rod 8 is threadedly connected to the second connecting seat 35. The second motor 7 is fixedly installed in the installation groove 101, and the output end is fixedly connected to the end of the threaded rod 8. It should be understood that when it is necessary to adjust the height of the first lifting platform 2, the second motor 7 is started. The second motor 7 drives the threaded rod 8 to rotate. The threaded rod 8 threadedly drives the second connecting seat 35 to move. The second connecting seat 35 moves the bottom end of the second lifting rod 33, so that a linkage is generated between the cross-arranged first lifting rod 31 and the second lifting rod 33, thereby realizing the adjustment of the height of the first lifting platform 2.

[0053] Electric cylinders 9 are fixedly installed at the four corners of the bottom of the first lifting platform 2. The output ends of the electric cylinders 9 penetrate through the first lifting platform 2 and extend into the receiving groove 3. The output ends of the four electric cylinders 9 are fixedly connected to the bottom of the second lifting platform 4. Specifically, an air vent 10 is opened on the inner bottom surface of the receiving groove 3 to provide a pressure relief channel for the movement of the second lifting platform 4 in the receiving groove 3.

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

[0055] It should be understood that when disassembling the battery pack main body 32, the battery-changing vehicle body 1 is moved under the vehicle chassis, and then moved close to the vehicle chassis through 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 vehicle chassis, the height is lowered through the second lifting platform 4 to receive the battery pack main body 32 onto the top of the elastic telescopic platform 5. Finally, the second lifting platform 4 is lowered into the receiving groove 3 to realize the disassembly 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 close to the new energy vehicle chassis through the first lifting platform 2. Then, the battery pack main body 32 is lifted and attached to the new energy vehicle chassis through the second lifting platform 4. Then, the battery pack main body 32 is fixed to the new energy vehicle chassis. Supported by the second lifting platform 4, in order to reduce the occlusion of the bottom of the battery pack main body 32 and provide space for disassembly and assembly;

[0056] During the process of the battery-changing vehicle body 1 receiving the battery pack main body 32, after the second lifting platform 4 receives the removed battery pack main body 32 onto the elastic telescopic platform 5, the battery pack main body 32 is flexibly supported by the elastic telescopic platform 5, and a space is formed between the battery pack main body 32 and the elastic telescopic platform 5 and the second lifting platform 4, so that the edge of the battery pack main body 32 is supported, reducing the interaction with the battery cells inside the battery pack main body 32. Then, during the process of the two mobile platforms 6 approaching each other, while driving the two clamping and limiting components to press the top of the battery pack main body 32, they are lapped with the edge of the elastic telescopic platform 5, so that the battery pack main body 32 is restricted on the elastic telescopic platform 5. When vibration occurs, the elastic telescopic platform 5 converts the vibration kinetic energy into elastic potential energy through elastic deformation, reducing the transmission of energy to the battery pack main body 32, which is beneficial to avoiding the problem of stress concentration on the contact surface caused by inertial impact during bumping, resulting in surface indentation or structural damage.

[0057] Such as Figure 3 、 Figure 4 、 Figure 5 and Figure 8 As shown in

[0058] Two rails are arranged on both sides of the first lifting platform 2. The rails 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-changing vehicle body 1 and are symmetrically arranged with reference to the first lifting platform 2. An orbital groove 12 is opened between the fixed slide rail 11 and the side of the first lifting platform 2. The orbital 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 slidably arranged 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. Two racks are respectively fixedly connected to the top ends of the inner walls of the two track grooves 12. The two racks are respectively meshed with the lower driving gear 14. 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. 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. The output end of the first motor 17 is fixedly connected to the driving gear 14 coaxially.

[0060] It should be understood that on the premise that the first lifting platform 2 needs to adjust its height to receive or lift and install the battery pack main body 32, the first motor 17 can drive the driving gear 14 to rotate. The driving gear 14 moves on the rack, and then the moving platform 6 moves to the fixed rack 15. The sliding seat 13 moves to the fixed section 1202 of the track groove 12. The sliding seat 13 drives the clamping and limiting assembly to leave the first lifting platform 2, so as to keep an open space at the top when the first lifting platform 2 disengages from or bears the battery pack main body 32.

[0061] Such as Figure 3 、 Figure 4 and Figure 5 As shown in, in one embodiment, both the fixed section 1202 and the movable section 1201 of the track groove 12 include a first limiting groove 1203 and a second limiting groove 1204. The second limiting groove 1204 is opened at the inner top end 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. The rack is fixedly installed 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 in the second limiting groove 1204, the sliding seat 13 is restricted in the track groove 12 to avoid the sliding seat 13 from disengaging, and thus the stable support for the moving platform 6 and the clamping and limiting assembly is realized.

[0062] Such as Figure 3 、 Figure 4 、 Figure 10 and Figure 11As shown, in one embodiment, the clamping and limiting assembly includes a socket 18 and a lapping groove 24. Two support rods 19 are slidably inserted into the socket 18. The socket 18 is fixedly connected to the top of the moving platform 6. The tops of the two support rods 19 are fixedly connected with a pressing seat 21. A first spring 20 is sleeved on the surfaces of the two support rods 19. The two ends of the first spring 20 are respectively fixedly connected with the pressing seat 21 and the socket 18. A first rubber roller 22 is rotatably connected to the top of the pressing seat 21. The lapping groove 24 is formed at the top edge of the elastic telescopic platform 5. A plug body 23 is fixedly installed on the pressing seat 21, and the plug body 23 is slidably docked with the lapping groove 24. It should be understood that after the battery pack main body 32 is received by the second lifting platform 4 onto the elastic telescopic platform 5, the battery pack main body 32 is lowered to the position on the top of the battery swapping vehicle body 1 by the first lifting platform 2. Then, the moving platform 6 drives the socket 18 to move, and the socket 18 synchronously drives the pressing seat 21 to move until the first rubber roller 22 rolls and presses on the top of the battery pack main body 32, realizing the limiting of the top of the battery pack main body 32. And the plug body 23 is docked with the lapping groove 24, so that the distance between the top of the elastic telescopic platform 5 and the first rubber roller 22 is limited, and the battery pack main 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 main body 32 from detaching from above the first lifting platform 2, realizes the limiting of the battery pack main body 32, and prevents slipping. On the other hand, during vibration, due to the deformation of the first spring 20 and the elastic telescopic platform 5, the vibration kinetic energy is converted into elastic potential energy through elastic deformation, reducing the energy transfer to the battery pack main body 32.

[0063] As Figure 3 and Figure 4 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 during the process of the two moving platforms 6 approaching each other, the connecting shaft 25 on the socket 18 synchronously drives the second rubber roller 26 to move until the two second rubber rollers 26 clamp and limit both ends of the fixing body 3201 on the side of the battery pack main body 32, completing the lateral limiting of the battery pack main body 32, making the battery pack main body 32 relatively stable with respect to the top of the elastic telescopic platform 5. And through the support and limitation of the first rubber roller 22, the second rubber roller 26 and the elastic telescopic platform 5, the limiting contact points are all elastic contacts, which is beneficial to avoiding the rigid damage to the surface of the battery pack main body 32 caused by rigid contact.

[0064] As 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-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0068] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A battery pack transfer and swapping device, comprising a swapping vehicle body (1), characterized in that, It further includes: A first lifting platform (2), the first lifting platform (2) is arranged on the top of the battery-changing vehicle body (1), and a receiving groove (3) is formed in the top of the first lifting platform (2); A second lifting platform (4), the second lifting platform (4) is arranged in the receiving groove (3); An elastic telescopic platform (5), the elastic telescopic platform (5) is annular, the elastic telescopic platform (5) is fixedly installed on the top of the first lifting platform (2), and surrounds the receiving 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 main body (32); Two pairs of moving platforms (6), the two pairs of moving platforms (6) are respectively slidably arranged on both sides of the first lifting platform (2), and clamping and limiting components are arranged on the moving platforms (6). When the two moving platforms (6) in the same pair approach each other, they will drive the two clamping and limiting components to press the top of the battery pack main body (32), and at the same time, lap with the edge of the elastic telescopic platform (5), so that the battery pack main body (32) is restricted on the elastic telescopic platform (5).

2. The battery pack transfer and swapping device according to claim 1, wherein, Electric cylinders (9) are fixedly installed at the four corners of the bottom of the first lifting platform (2), the output ends of the electric cylinders (9) penetrate through the first lifting platform (2) and extend into the receiving groove (3), and 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 transfer and battery swapping device according to claim 1, wherein A driving component is arranged on the moving platform (6), and the driving component includes: 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-changing vehicle body (1), and are symmetrically arranged with the first lifting platform (2) as a reference. A track groove (12) is formed between the fixed slide rail (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 formed in the fixed slide rail (11), and the movable section (1201) is formed in the side of the first lifting platform (2); A sliding seat (13) is slidably arranged 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 ends of the inner walls of the two track grooves (12), and the two racks are respectively meshed with the lower driving gear (14). 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), 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 fixedly connected to the driving gear (14) coaxially.

4. The battery pack transfer and battery swapping device according to claim 3, wherein 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).

5. The battery pack transfer and battery swapping device according to claim 3 or 4, wherein 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).

6. The battery pack transfer and battery swapping device according to claim 5, wherein, 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).

7. The battery pack transfer and swapping device according to claim 6, wherein, 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).

8. The battery pack transfer and battery swapping device according to claim 7, wherein, 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).

9. The battery pack transfer and battery swapping device according to claim 8, 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).

10. The battery pack transfer and battery swapping device according to claim 9, wherein, 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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