Shock-resistant lithium ion battery pack for battery replacement and battery replacement method of shock-resistant lithium ion battery pack

Abstract

The invention discloses an anti-shock lithium ion battery pack for battery replacement and a battery replacement method thereof, and relates to the technical field of lithium ion battery replacement. The anti-shock lithium ion battery pack comprises a lithium ion battery body, a conductive metal column extends out of the top of the lithium ion battery body, and a conductive clamping piece is slidably connected to the side face of the conductive metal column; the two conductive clamping pieces are arranged in the axis direction of the conductive metal column, the side faces of the two conductive clamping pieces are connected with a driving mechanism, a protection plate is fixed to the top of the lithium ion battery body and wraps the conductive metal column, the bottom of the protection plate is detachably connected with a protection cover body, and an anti-vibration mechanism is arranged in the protection cover body; the system further comprises a lithium ion battery replacing cabinet, the lithium ion battery replacing cabinet is provided with a plurality of placing compartments, and automatic connecting and guiding mechanisms are arranged at the tops of the placing compartments. The shock-resistant lithium ion battery pack can provide shock-resistant protection for the lithium ion battery in all directions, and meanwhile, the adopted driving mechanism is combined with the automatic connecting and guiding mechanism in the battery replacing cabinet, so that the battery replacing operation is quick, simple and convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium-ion battery replacement, and in particular relates to a shock-resistant lithium-ion battery pack for battery replacement and a battery replacement method thereof. Background Art

[0002] The traditional assembly method of power lithium-ion batteries is to first assemble the positive electrode sheet, negative electrode sheet and diaphragm in a stacking manner, that is, the sheet-shaped positive electrode sheet, negative electrode sheet and diaphragm are overlapped by using the unit of "negative electrode sheet, diaphragm, positive electrode sheet, diaphragm", and a negative electrode is superimposed on the last unit. Each electrode sheet is connected to the current output terminal (pole) through the current collector; then the stacked battery core is wrapped with a diaphragm or tape and placed in a metal or plastic shell.

[0003] When an electric vehicle is driving, especially when driving on an uneven road, the vehicle body vibrates greatly. Under the vibration, relative movement is easily generated between the battery poles and between the battery core and the shell, resulting in unstable performance.

[0004] At the same time, in the field of electric vehicles, with the continuous increase in the number of electric vehicles in China, the vast number of people who use electric vehicles for a long time, a large number of takeaway and express delivery riders, and shared electric vehicles that centrally replace and collect battery packs are increasingly facing some problems such as "inconvenient charging", "low charging speed", "many safety hazards", "insufficient battery life", "long waiting time", and "low efficiency". In this context, the "battery replacement" model has been proposed. The electric vehicle battery replacement model can solve the pain points of the traditional charging model, improve the replacement efficiency, and meet the needs of battery life. Compared with lead-acid batteries and ternary lithium-ion batteries, the service life of lithium iron phosphate power soft-pack lithium-ion batteries is much higher than that of lead-acid batteries and ternary lithium-ion batteries, which can save the cost of use. More importantly, the safety of lithium iron phosphate power soft-pack lithium-ion batteries can be guaranteed. With the increase in the number of battery replacement users, the number of battery thefts has increased year by year, which has brought great instability to riders, and worrying about battery theft has become a problem for every rider user. With the increase in the number of batteries, battery management, battery data processing, analysis and other issues have become increasingly important, and the big data statistics, analysis and processing of the monitoring background are urgently needed. Therefore, battery swap cabinets came into being. They can be used to charge battery packs and are also convenient for taking out. However, when the battery packs are placed in the battery swap cabinet, they need to be wired and charged, and the battery swap rate is low. If shared electric vehicles collect and replace battery packs in a centralized manner, it will affect the replacement efficiency of the replacement operators. Summary of the invention

[0005] The purpose of the present invention is to provide a shock-resistant lithium-ion battery pack for battery replacement and a battery replacement method thereof. The shock-resistant lithium-ion battery pack can provide all-round shock absorption protection for the lithium-ion battery. At the same time, the driving mechanism adopted is combined with the automatic connecting mechanism inside the battery replacement cabinet, so that the battery replacement operation is fast and simple, thereby improving work efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A seismic-resistant lithium-ion battery pack for battery replacement, comprising a lithium-ion battery body, a conductive metal column extending from the top of the lithium-ion battery body, a conductive clip slidably connected to the side of the conductive metal column, two conductive clips are provided along the axial direction of the conductive metal column, and a driving mechanism is connected to the side of the two conductive clips. A protective plate is fixed on the top of the lithium-ion battery body, the protective plate wraps the conductive metal column, a protective cover body is detachably connected to the bottom of the protective plate, and a seismic-resistant mechanism is provided inside the protective cover body. The lithium-ion battery replacement cabinet is also included. The lithium-ion battery replacement cabinet is provided with a plurality of placement compartments, and an automatic receiving mechanism is provided on the top of the placement compartments.

[0008] As a preferred solution of the present invention, the interior of the protective cover body is hollow, a metal frame is fixed to the protective cover body near the end of the protective plate, screw holes are provided on the metal frame, the metal frame is connected to the protective plate screws through the screw holes, a rubber pad is fixed to the end of the protective cover body away from the protective plate, and a number of through holes are provided on the side of the protective cover body.

[0009] As a preferred solution of the present invention, a groove is provided inside the protective plate, a movable frame is slidably connected inside the groove, a first spring is fixed on the top of the movable frame, a plurality of first springs are provided, the first springs are evenly distributed inside the groove, the first spring is fixed to the bottom of the groove away from the movable frame end, and a thermal conductive gel plate is fixed and bonded to the movable frame away from the first spring end.

[0010] As a preferred solution of the present invention, the seismic resistance mechanism includes a TPU plate located between the metal frame and the rubber pad, the two ends of the TPU plate are respectively bonded and fixed to the metal frame and the rubber pad, a plurality of groups of through holes are provided inside the TPU plate, a connecting hole is provided between two through holes, and a secondary shock absorbing mechanism bonded and fixed to the connecting holes is provided inside the connecting holes.

[0011] As a preferred solution of the present invention, one end of the secondary shock absorbing mechanism is a first ear plate, and the other end is a second ear plate, a viscous oil damping is installed between the first ear plate and the second ear plate, and the secondary shock absorbing mechanism is provided with several groups inside each connecting hole.

[0012] As a preferred solution of the present invention, the driving mechanism includes a connecting rod hinged on the conductive clip, and the upper and lower connecting rods are hingedly connected away from the conductive clip end, wherein the side of the conductive clip located at the bottom is hingedly connected with a driving rod, and a trigger plate is fixed to the driving rod away from the conductive clip end, the bottom of the trigger plate slides inside the protective plate, and the driving rod is rotatably connected to the protective plate near the trigger plate end.

[0013] As a preferred solution of the present invention, a reset rod is hinged at the bottom of the trigger plate, a baffle is fixed outside the reset rod, a sliding groove is provided on the protective plate for the reset rod to slide, a third spring is fixed at the bottom of the sliding groove, the third spring is fixed at the bottom of the baffle away from the bottom end of the sliding groove, a pin is rotatably connected at the hinge of the two connecting rods, a fixed cover fixed on the protective plate is provided outside the pin, and a movable groove is provided inside the fixed cover for the pin to slide.

[0014] As a preferred solution of the present invention, the top of the conductive metal column is threadedly connected with a TPU elastic block, and the side of the conductive metal column is also covered with a protective rubber sleeve, which is composed of two semicircular blocks inserted in each other, one of the semicircular blocks is internally threadedly connected with a fastening screw, and the screwed-in end of the fastening screw abuts against the side of the conductive metal column.

[0015] As a preferred solution of the present invention, the automatic receiving mechanism includes a telescopic motor fixed on the top of the placement compartment, two telescopic motors are provided at the positions corresponding to the conductive metal columns, the two telescopic motors are connected in series, the output end of the telescopic motor is connected to a resistance rod, an arc-shaped connecting rod is fixed on the side of the resistance rod, the arc-shaped connecting rods are symmetrically arranged, a conductive plate is fixed at the end of the arc-shaped connecting rod away from the resistance rod, a spring sheet is fixed on the inner side of the conductive plate, and also includes a fixed rod fixed between the inner walls of the placement compartment, a switch rod is slidably connected inside the fixed rod, a resistance plate is fixed to the end of the switch rod facing the inner side of the placement compartment, a travel switch fixed on the inner wall of the placement compartment is provided between the resistance plate and the inner wall of the placement compartment, the travel switch is electrically connected to the telescopic motor, and the switch rod has an arc-shaped dome at the end away from the inner side of the placement compartment.

[0016] The present invention also provides a method for replacing a shock-resistant lithium-ion battery pack, based on the shock-resistant lithium-ion battery pack and the battery replacement cabinet, comprising the following steps:

[0017] ① Rotate the TPU elastic block to remove the conductive metal column on the lithium-ion battery body and the connecting wire of the electrical equipment, take out the entire lithium-ion battery pack including the lithium-ion battery body, protective cover and protective plate, and place it in the compartment inside the battery swap cabinet;

[0018] ② Push the lithium-ion battery pack toward the inside of the storage compartment;

[0019] ③. After the lithium-ion battery pack moves to contact the arc-shaped dome of the switch rod, the contact switch rod moves to drive the contact plate to contact the travel switch, and the travel switch turns on the telescopic motor, and the two telescopic motors start to run;

[0020] ④. The telescopic motor drives the contact rod to move, so that the contact rod contacts the trigger plate and moves downward, and then the trigger plate drives the driving rod to rotate, driving the two conductive clips to move;

[0021] ⑤. While the resistance rod moves, the conductive plates on both sides carry the spring sheets and move synchronously between the two conductive clips, and then contact the conductive clips, and then contact the conductive metal columns to conduct electricity and charge the lithium-ion battery pack;

[0022] ⑥. When taking the lithium-ion battery pack, just take it directly to complete the battery replacement.

[0023] In summary, the beneficial technical effects of the present invention are:

[0024] 1. A protective cover body is provided, and a highly elastic TPU material is used as the main structure filled inside the protective cover body. Secondly, multiple through holes are provided inside the TPU board to improve heat dissipation and avoid low heat dissipation efficiency of the battery pack when it is wrapped. At the same time, based on the design of the TPU board, a secondary shock absorbing mechanism is provided inside the TPU board. The secondary shock absorbing mechanism uses viscous oil damping as the main energy absorbing structure. The secondary shock absorbing mechanism is provided perpendicular to the TPU board. Therefore, when impacted, the viscous oil damping compresses and absorbs energy, thereby improving the overall anti-seismic performance of the battery pack side;

[0025] 2. Combined with the setting of the protective plate, during the collision, the lithium-ion battery body is not directly contacted, and the protective plate 4 and the protective cover body are fixed with screws, which is convenient for disassembly and maintenance of the lithium-ion battery body in the later stage. At the same time, the setting of the thermal conductive gel plate can further improve the heat dissipation efficiency of the lithium-ion battery body during operation. The top of the movable frame is connected with the first spring, and then when the top protective plate is impacted, the deformation of the protective plate can act on the first spring, and the first spring contracts to absorb energy, and then combined with the setting of the protective cover body, it can provide shock absorption protection for the lithium-ion battery in all directions;

[0026] 3. A trigger plate structure is set up to drive the conductive clip to automatically clamp. At the same time, an automatic connecting mechanism is set up inside the placement compartment inside the battery swap cabinet, which is used to quickly connect to the conductive metal column on the lithium-ion battery body for charging. This can improve the battery swap efficiency in the battery swap project. There is no need to connect each lithium-ion battery pack to the battery swap cabinet. It can be charged after being directly placed in, thereby effectively improving the battery swap efficiency. Especially when performing large-scale battery swap operations, a lot of time can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of a state where a shock-resistant lithium-ion battery pack for battery replacement is placed in a storage compartment according to the present embodiment;

[0029] Figure 2 This is a schematic structural diagram of a shock-resistant lithium-ion battery pack for battery replacement according to the present embodiment;

[0030] Figure 3 This is a shock-resistant lithium-ion battery pack for battery replacement in this embodiment. Figure 2 A cross-sectional schematic diagram of

[0031] Figure 4 This is a schematic diagram of the explosion structure of a protective cover body of a shock-resistant lithium-ion battery pack for battery replacement in this embodiment;

[0032] Figure 5 This is a schematic cross-sectional view of a protective cover body of a shock-resistant lithium-ion battery pack for battery replacement according to the present embodiment;

[0033] Figure 6 is a schematic cross-sectional view of a protective plate of a shock-resistant lithium-ion battery pack for battery replacement according to the present embodiment;

[0034] Figure 7 This is a shock-resistant lithium-ion battery pack for battery replacement in this embodiment. Figure 2 A magnified schematic diagram of point A;

[0035] Figure 8 This is a schematic diagram of a compartment structure for placing a shock-resistant lithium-ion battery pack for battery replacement in this embodiment;

[0036] Fig. 9 This is a shock-resistant lithium-ion battery pack for battery replacement in this embodiment. Figure 8 A front view schematic diagram of

[0037] Fig.10 This is a shock-resistant lithium-ion battery pack for battery replacement in this embodiment. Figure 5 An enlarged schematic diagram of the secondary shock absorbing mechanism.

[0038] In the figure: 1. lithium-ion battery body; 2. conductive metal column; 3. conductive clip; 4. protective plate; 5. protective cover; 6. placement compartment; 7. metal frame; 8. screw hole; 9. rubber pad; 10. through hole; 11. groove; 12. moving frame; 13. first spring; 14. thermal conductive gel plate; 15. TPU plate; 16. through hole; 17. connecting hole; 18. secondary shock absorbing mechanism; 19. first ear plate; 20. second ear plate; 21. viscous oil damping; 22. connecting Connecting rod; 23. Driving rod; 24. Trigger plate; 25. Reset rod; 26. Baffle; 27. Slide groove; 28. Third spring; 29. ​​Pin; 30. Fixed cover; 31. Moving groove; 32. TPU elastic block; 33. Protective rubber sleeve; 34. Telescopic motor; 35. Resistance rod; 36. Arc connecting rod; 37. Conductive plate; 38. Spring sheet; 39. Fixed rod; 40. Switch rod; 41. Resistance plate; 42. Travel switch; 43. Arc dome; 44. Lithium-ion battery replacement cabinet. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-10 The present invention provides a technical solution: an anti-seismic lithium-ion battery pack for battery replacement, comprising a lithium-ion battery body 1, a conductive metal column 2 extending from the top of the lithium-ion battery body 1, a conductive clip 3 slidably connected to the side of the conductive metal column 2, two conductive clips 3 are provided along the axial direction of the conductive metal column 2, and a driving mechanism is connected to the side of the two conductive clips 3. A protective plate 4 is fixed to the top of the lithium-ion battery body 1, the protective plate 4 wraps the conductive metal column 2, and a protective cover body 5 is detachably connected to the bottom of the protective plate 4, and an anti-seismic mechanism is provided inside the protective cover body 5. It also includes a lithium-ion battery replacement cabinet, and the lithium-ion battery replacement cabinet 44 is provided with a plurality of placement compartments 6, and an automatic receiving mechanism is provided on the top of the placement compartment 6.

[0042] The interior of the protective cover body 5 is hollow, and a metal frame 7 is fixed to the end of the protective cover body 5 near the protective plate 4. The metal frame 7 is provided with screw holes 8, and the metal frame 7 is screwed to the protective plate 4 through the screw holes 8. A rubber pad 9 is fixed to the end of the protective cover body 5 away from the protective plate 4. A plurality of through holes 10 are provided on the side of the protective cover body 5, and the metal frame 7 can be conveniently connected and installed with the upper protective plate 4. At the same time, the rubber pad 9 at the bottom is placed at the bottom to support the placement of the entire lithium-ion battery pack and provide anti-slip support.

[0043] At the same time, there is an anti-seismic mechanism inside the protective cover body 5 arranged on the side. Specifically, the anti-seismic mechanism includes a TPU plate 15 located between the metal frame 7 and the rubber pad 9. The two ends of the TPU plate 15 are respectively bonded and fixed to the metal frame 7 and the rubber pad 9. A plurality of groups of through holes 16 are provided inside the TPU plate 15. A connecting hole 1710 is provided between two through holes 16. A secondary shock absorbing mechanism 18 bonded and fixed to the connecting hole 17 is provided inside the connecting hole 1710.

[0044] At the same time, one end of the secondary shock absorbing mechanism 18 is a first ear plate 19 and the other end is a second ear plate 20. A viscous oil damper 21 is installed between the first ear plate 19 and the second ear plate 20. The secondary shock absorbing mechanism 18 is provided with several groups inside each connecting hole 17.

[0045] First, a highly elastic TPU material is used as the main structure filled inside the protective cover body 5. Secondly, a plurality of through holes 10 are arranged inside the TPU plate 15 to improve heat dissipation and avoid low heat dissipation efficiency of the battery pack in the wrapped state. At the same time, based on the design of the TPU plate 15, a secondary shock absorbing mechanism 18 is arranged inside the TPU plate 15. The secondary shock absorbing mechanism 18 uses a viscous oil damping 21 as the main energy absorption structure, wherein the first ear plate 19 and the second ear plate 20 are both fixed inside the through hole 17, and the viscous oil damping 21 is used as the damping structure. Specifically, the secondary shock absorbing mechanism 18 is arranged perpendicular to the direction of the TPU plate 15. Therefore, during an impact, the viscous oil damping 21 is compressed to absorb energy, and the absorbed energy slides through the piston rod inside it, and then releases energy through the friction between it and the second ear plate 20, thereby improving the overall anti-seismic and anti-collision performance of the battery pack side.

[0046] At the same time, a protective plate 4 is used on the top of the lithium-ion battery body 1 for protection. During the collision, the lithium-ion battery body 1 is not directly contacted, and the protective plate 4 and the protective cover body 5 are fixed with screws, which are convenient for disassembly and maintenance of the lithium-ion battery body 1 in the later stage. At the same time, a groove 11 is provided inside the protective plate 4, and a moving frame 12 is slidably connected inside the groove 11. A first spring 13 is fixed on the top of the moving frame 12. The first spring 13 is provided with a plurality of first springs 13, which are evenly distributed inside the groove 11. The end of the first spring 13 away from the moving frame 12 is fixed to the bottom of the groove 11, and the end of the moving frame 12 away from the first spring 13 is fixedly bonded with a thermal conductive gel plate 14.

[0047] The setting of the thermally conductive gel plate 14 can further improve the heat dissipation efficiency of the lithium-ion battery body 1 during operation. At the same time, the top of the movable frame 12 is connected with the first spring 13. When the top protective plate 4 is impacted, the deformation of the protective plate 4 can act on the first spring 13, and the first spring 13 contracts to absorb energy. Combined with the setting of the protective cover body 5, it can provide all-round shock absorption protection for the lithium-ion battery.

[0048] In this embodiment, a TPU elastic block 32 is threadedly connected to the top of the conductive metal column 2, and a protective rubber sleeve 33 is also sleeved on the side of the conductive metal column 2. The protective rubber sleeve 33 is composed of two semicircular blocks inserted in each other, one of which is internally threaded with a fastening screw, and the screwed-in end of the fastening screw contacts the side of the conductive metal column 2. Two conductive clips 3 are used on the conductive metal column 2 at the top of the lithium-ion battery body 1 to connect to the power. When connecting the electrical equipment, the power connection wires on the electrical equipment are placed between the two conductive clips 3. By screwing in the top TPU elastic block 32, the TPU elastic block 32 contacts and presses the conductive clip 3 to complete the power connection. At the same time, the TPU elastic block 32 arranged on the top of the conductive metal column 2 and the protective rubber sleeve 33 arranged on the side can provide protection for the conductive metal column 2.

[0049] At the same time, a driving mechanism is also set on the side of the conductive clip 3 to facilitate the lithium-ion battery body 1 to perform battery replacement operations more conveniently. Specifically, the driving mechanism includes a connecting rod 22 hinged on the conductive clip 3, and the upper and lower connecting rods 22 are hingedly connected at the ends away from the conductive clip 3, wherein the side of the conductive clip 3 located at the bottom is hingedly connected with a driving rod 23, and the end of the driving rod 23 away from the conductive clip 3 is fixed with a trigger plate 24, the bottom of the trigger plate 24 slides inside the protective plate 4, and the driving rod 23 is rotatably connected to the protective plate 4 near the end of the trigger plate 24.

[0050] A reset rod 25 is hinged at the bottom of the trigger plate 24, and a baffle 26 is fixed to the outside of the reset rod 25. A sliding groove 27 for the reset rod 25 to slide is provided on the protective plate 4, and a third spring 28 is fixed to the bottom of the sliding groove 27. The third spring 28 is fixed to the bottom of the baffle 26 away from the bottom end of the sliding groove 27. A pin 29 is rotatably connected at the hinge of the two connecting rods 22. A fixed cover 30 fixed on the protective plate 4 is provided on the outside of the pin 29, and a movable groove 31 is provided inside the fixed cover 30 for the pin 29 to slide.

[0051] After the trigger plate 24 is pressurized, the trigger plate 24 moves downward, thereby driving the rod 23 to rotate around the hinge point between the trigger plate 24 and the protective plate 4. Due to the lever principle, the conductive clip 3 at the other end of the driving rod 23 moves upward. At the same time, the connecting rod 22 located on the conductive clip 3 has a limiting mechanism far away from the end of the conductive clip 3, namely, the movable groove 31 inside the fixed cover 30. Since the movable groove 31 is arranged horizontally, as the conductive clip 3 moves upward, the connecting rod 22 thereon moves horizontally along the movable groove 31 toward the pin shaft 29 at the end of the fixed cover 30, thereby driving the upper connecting rod 22 to rotate. At this time, the upper conductive clip 3 moves downward and maintains a clamping state with the lower conductive clip 3. After the pressure applied by the trigger plate 24 is removed, the third spring 28 automatically rebounds to drive the trigger plate 24 to reset, and the two conductive clips 3 are reset.

[0052] In this embodiment, an automatic connecting mechanism is provided inside the battery exchange cabinet, which is used to quickly connect with the conductive metal column 2 on the lithium-ion battery body 1 for charging. The automatic connecting mechanism includes a telescopic motor 34 fixed on the top of the placement compartment 6. Two telescopic motors 34 are provided corresponding to the position of the conductive metal column 2. The two telescopic motors 34 are connected in series. The output end of the telescopic motor 34 is connected to a resistance rod 35. An arc-shaped connecting rod 36 is fixed to the side of the resistance rod 35. The arc-shaped connecting rod 36 is symmetrically arranged and away from the resistance rod 35. A conductive plate 37 is fixed to the end of the touch rod 35, and a spring sheet 38 is fixed to the inner side of the conductive plate 37. The touch rod 35 also includes a fixed rod 39 fixed between the inner walls of the placement compartment 6, and a switch rod 40 is slidably connected inside the fixed rod 39. A contact plate 41 is fixed to the switch rod 40 at the inner end facing the placement compartment 6, and a travel switch 42 fixed on the inner wall of the placement compartment 6 is provided between the contact plate 41 and the inner wall of the placement compartment 6. The travel switch 42 is electrically connected to the telescopic motor 34, and the switch rod 40 has an arc-shaped dome 43 at the inner end away from the placement compartment 6.

[0053] After the lithium-ion battery body 1 is inserted, it is pushed to contact the switch rod 40, which can contact the travel switch 42, and then the telescopic motor 34 is automatically turned on. The telescopic motor 34 drives the contact rod 35 to apply pressure to the trigger plate 24, so that the two conductive clips 3 remain in a clamping state. At the same time, after the contact rod 35 moves, the conductive sheet moves synchronously, and then the spring sheet 38 is clamped between the two conductive clips 3. The above-mentioned conductive sheet is connected to the power system of the battery exchange cabinet, and then the charging of the lithium-ion battery pack can be started; when taking it out, the lithium-ion battery pack is directly taken out. The switch rod therein is also a spring connection structure. When the arc dome 43 is not under force, it automatically rebounds, and then the telescopic motor 34 is turned off, and the telescopic motor 34 contracts to drive the contact rod 35 to move upward.

[0054] This embodiment is implemented by the following steps:

[0055] ① Rotate the TPU elastic block 32 to remove the conductive metal column 2 on the lithium-ion battery body 1 and the connecting wire of the electrical equipment, take the entire lithium-ion battery pack including the lithium-ion battery body 1, the protective cover 5 and the protective plate 4, and place them in the placement compartment 6 inside the battery exchange cabinet;

[0056] ②, pushing the lithium-ion battery pack toward the interior of the placement compartment 6;

[0057] ③. After the lithium-ion battery pack moves to contact the arc dome 43 of the switch rod 40, the contact switch rod 40 moves to drive the contact plate 41 to contact the travel switch 42, and the travel switch 42 turns on the telescopic motor 34, and the two telescopic motors 34 start to run;

[0058] ④. The telescopic motor 34 drives the contact rod 35 to move, so that the contact rod 35 contacts the trigger plate 24 and moves downward, and then the trigger plate 24 drives the driving rod 23 to rotate, driving the two conductive clips 3 to move;

[0059] ⑤. When the abutment rod 35 moves, the conductive plates 37 on both sides carry the spring sheets 38 and move synchronously between the two conductive clips 3, and then contact the conductive clips 3, and then contact the conductive metal column 2 to conduct electricity and charge the lithium-ion battery pack;

[0060] ⑥. When taking the lithium-ion battery pack, take the lithium-ion battery body close to the bottom position. After taking it, the side of the lithium-ion battery body is out of contact with the travel switch 42. Then, while taking it, the telescopic motor 34 is turned off, and the spring piece 38 is away from the conductive clip 3, and the power is automatically cut off, thereby completing the battery replacement.

[0061] The present invention can improve the battery replacement efficiency in the battery replacement project. There is no need to connect each lithium-ion battery pack to the battery replacement cabinet. It can be charged directly after being placed in, thereby effectively improving the battery replacement efficiency. Especially when performing large-scale battery replacement operations, a lot of time can be saved.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shock-resistant lithium-ion battery pack for battery replacement, characterized in that: The invention comprises a lithium-ion battery body (1), a conductive metal column (2) extending from the top of the lithium-ion battery body (1), a conductive clip (3) slidably connected to the side of the conductive metal column (2), two conductive clips (3) are provided along the axial direction of the conductive metal column (2), and the sides of the two conductive clips (3) are connected to a driving mechanism, a protective plate (4) is fixed to the top of the lithium-ion battery body (1), the protective plate (4) wraps the conductive metal column (2), a protective cover body (5) is detachably connected to the bottom of the protective plate (4), and an anti-seismic mechanism is provided inside the protective cover body (5), and a lithium-ion battery exchange cabinet (43) is provided, wherein the lithium-ion battery exchange cabinet is provided with a plurality of placement compartments (6), and an automatic receiving mechanism is provided on the top of the placement compartments (6).

2. The shock-resistant lithium-ion battery pack for battery replacement according to claim 1, characterized in that: The interior of the protective cover body (5) is hollow. A metal frame (7) is fixed to the end of the protective cover body (5) close to the protective plate (4). The metal frame (7) is provided with screw holes (8). The metal frame (7) is screwed to the protective plate (4) through the screw holes (8). A rubber pad (9) is fixed to the end of the protective cover body (5) away from the protective plate (4). A plurality of through holes (10) are provided on the side of the protective cover body (5).

3. The shock-resistant lithium-ion battery pack for battery replacement according to claim 2, characterized in that: The protective plate (4) is provided with a groove (11) inside, a movable frame (12) is slidably connected inside the groove (11), a first spring (13) is fixed on the top of the movable frame (12), a plurality of first springs (13) are provided, the first springs (13) are evenly distributed inside the groove (11), the end of the first spring (13) away from the movable frame (12) is fixed to the bottom of the groove (11), and the end of the movable frame (12) away from the first spring (13) is fixedly bonded with a thermal conductive gel plate (14).

4. The shock-resistant lithium-ion battery pack for battery replacement according to claim 1, characterized in that: The anti-vibration mechanism comprises a TPU plate (15) located between the metal frame (7) and the rubber pad (9), the two ends of the TPU plate (15) are respectively bonded and fixed to the metal frame (7) and the rubber pad (9), a plurality of groups of through holes (16) are provided inside the TPU plate (15), a connecting hole (17) is provided between two through holes (16), and a secondary shock absorbing mechanism (18) bonded and fixed to the connecting hole (17) is provided inside the connecting hole (17).

5. The shock-resistant lithium-ion battery pack for battery replacement according to claim 4, characterized in that: One end of the secondary shock absorbing mechanism (18) is a first ear plate (19), and the other end is a second ear plate (20). A viscous oil damper (21) is installed between the first ear plate (19) and the second ear plate (20). The secondary shock absorbing mechanism (18) is provided with a plurality of groups inside each communicating hole (17).

6. The shock-resistant lithium-ion battery pack for battery replacement according to claim 1, characterized in that: The driving mechanism comprises a connecting rod (22) hinged on the conductive clip (3), wherein the upper and lower connecting rods (22) are hingedly connected at the ends away from the conductive clip (3), wherein the side of the conductive clip (3) located at the lower side is hingedly connected to a driving rod (23), and the end of the driving rod (23) away from the conductive clip (3) is fixed with a trigger plate (24), the bottom of the trigger plate (24) slides inside the protective plate (4), and the end of the driving rod (23) close to the trigger plate (24) is rotatably connected to the protective plate (4).

7. The shock-resistant lithium-ion battery pack for battery replacement according to claim 6, characterized in that: The bottom of the trigger plate (24) is hinged with a reset rod (25), the outside of the reset rod (25) is fixed with a baffle (26), the protective plate (4) is provided with a slide groove (27) for the reset rod (25) to slide, the bottom of the slide groove (27) is fixed with a third spring (28), the third spring (28) is fixed to the bottom of the baffle (26) away from the bottom end of the slide groove (27), the two connecting rods (22) are hingedly connected with a pin shaft (29), the outside of the pin shaft (29) is provided with a fixed cover (30) fixed on the protective plate (4), and the inside of the fixed cover (30) is provided with a movable groove (31) for the pin shaft (29) to slide.

8. The shock-resistant lithium-ion battery pack for battery replacement according to claim 1, characterized in that: The top of the conductive metal column (2) is threadedly connected to a TPU elastic block (32), and the side of the conductive metal column (2) is also sleeved with a protective rubber sleeve (33), which is composed of two semicircular blocks plugged in, one of the semicircular blocks is internally threadedly connected to a fastening screw, and the screwed-in end of the fastening screw contacts the side of the conductive metal column (2).

9. The shock-resistant lithium-ion battery pack for battery replacement according to claim 1, characterized in that: The automatic receiving mechanism comprises a telescopic motor (34) fixed on the top of the placement compartment (6), two telescopic motors (34) are provided at positions corresponding to the conductive metal pillars (2), the two telescopic motors (34) are connected in series, the output end of the telescopic motor (34) is connected to a resistance rod (35), an arc-shaped connecting rod (36) is fixed to the side of the resistance rod (35), the arc-shaped connecting rod (36) is symmetrically arranged, a conductive plate (37) is fixed to the end of the arc-shaped connecting rod (36) away from the resistance rod (35), and a spring sheet (38) is fixed to the inner side of the conductive plate (37). ), further comprising a fixing rod (39) fixed between the inner walls of the placement compartment (6), a switch rod (40) being slidably connected inside the fixing rod (39), a contact plate (41) being fixed at the end of the switch rod (40) facing the inner side of the placement compartment (6), a travel switch (42) fixed on the inner wall of the placement compartment (6) being provided between the contact plate (41) and the inner wall of the placement compartment (6), the travel switch (42) being electrically connected to the telescopic motor (34), and a curved dome (43) being provided at the end of the switch rod (40) away from the inner side of the placement compartment (6).

10. A method for replacing a shockproof lithium-ion battery pack, based on the shockproof lithium-ion battery pack and battery replacement cabinet according to claims 1-9, characterized in that: The following steps are involved: ① Rotate the TPU elastic block (32) to remove the conductive metal column (2) on the lithium-ion battery body (1) and the connecting wire of the electrical equipment, take out the entire lithium-ion battery pack including the lithium-ion battery body (1), the protective cover (5) and the protective plate (4), and place it in the storage compartment (6) inside the battery exchange cabinet; ②, pushing the lithium-ion battery pack toward the interior of the storage compartment (6); ③. After the lithium-ion battery pack moves to contact the arc-shaped dome (43) of the switch rod (40), the contact switch rod (40) moves to drive the contact plate (41) to contact the travel switch (42), and the travel switch (42) turns on the telescopic motor (34), and the two telescopic motors (34) start to operate; ④. The telescopic motor (34) drives the contact rod (35) to move, so that the contact rod (35) contacts the trigger plate (24) and moves downward, and then the trigger plate (24) drives the driving rod (23) to rotate, thereby driving the two conductive clips (3) to move; ⑤. When the abutment rod (35) moves, the conductive plates (37) on both sides carry the spring sheets (38) and move synchronously between the two conductive clips (3), and then contact the conductive clips (3), and then contact the conductive metal pillars (2) to conduct electricity and charge the lithium-ion battery pack; ⑥. When taking the lithium-ion battery pack, just take it directly to complete the battery replacement.

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