A high-performance lithium-ion battery pack for electric vehicles

Abstract

The present invention discloses a high-performance lithium-ion battery pack for electric vehicles, which relates to the field of lithium-ion battery packs. The battery pack includes a battery box group and a battery body, wherein the battery body is arranged inside the battery box group, and a heat dissipation fin for providing heat transfer inside the battery box group is fixedly inserted at the bottom of the battery box group, and an installation compartment is provided in the middle of the inner cavity of the battery box group, and an air collection duct is fixed in the installation compartment, and a sealing cover plate is provided on the top surface of the battery box group. The present invention overcomes the shortcomings of the prior art, ingeniously combines active heat dissipation with natural air cooling, and uses a scraper to alternately clean dust on the surface of the heat dissipation fins to continuously optimize the heat transfer effect, and does not require an additional power source for control, and has high social use value and application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium ion battery packs, and in particular to a high-performance lithium ion battery pack for electric vehicles. Background Art

[0002] An electric vehicle is a type of transportation vehicle that uses electricity as its power source, including electric bicycles, electric motorcycles and electric cars. Its main components are batteries, motors and controllers. Among the types of batteries used, lithium-ion batteries have better performance. Compared with ordinary batteries, they can store more electricity and their charging speed is relatively fast.

[0003] When using lithium-ion batteries, heat dissipation is very important, as it can directly affect the performance and life of the battery. In addition, in the case of poor heat dissipation, certain safety hazards are likely to occur. In actual use, since the battery requires a safe environment, a protective box will be installed on the outside to protect the battery.

[0004] However, the increase in the box will also affect the heat dissipation. Adding heat sinks on the outside of the box can improve the heat dissipation efficiency of the box. However, after long-term use, dust and debris are easily attached to the surface of the heat sink, which reduces the heat transfer efficiency of the heat sink. Summary of the invention

[0005] In order to achieve stable heat dissipation of the battery pack during use and simultaneously ensure the stability of the battery inside the protective box, in order to prevent potential safety hazards, the present invention adopts the following technical solutions: A high-performance lithium-ion battery pack for electric vehicles, comprising a battery box group and a battery body, wherein the battery body is arranged inside the battery box group, a heat dissipation fin for providing heat transfer inside the battery box group is fixedly inserted at the bottom of the battery box group, a mounting compartment is arranged in the middle of the inner cavity of the battery box group, an air collection duct is fixed in the mounting compartment, a sealing plate is arranged on the top surface of the battery box group, an air collection sleeve connected to the air collection duct is arranged on the side of the battery box group, an air outlet guard plate is arranged on the other side of the battery box group, and a balancing groove is arranged at the bottom of the battery box group; The inner end of the air collecting duct is provided with a fan blade located on one side of the air outlet guard plate, and an active bevel gear is provided at the axial center of the fan blade. The end of the battery box group is provided with a transmission device located on one side of the fan blade.

[0006] Preferably, the transmission device includes a main shaft, a driven bevel gear and a driving spur gear, the main shaft is rotatably connected to the end of the battery box group, the driven bevel gear is fixedly installed on the end of the main shaft, the driven bevel gear is meshed and matched with the driving bevel gear, and the driving spur gear is fixedly installed in the middle of the main shaft.

[0007] Preferably, the transmission device also includes an adjustment mechanism installed at the end of the battery box group, and the adjustment mechanism includes a swing frame rotatably connected to the end of the battery box group, and a transmission gear that meshes and matches with the active spur gear is rotatably provided on the swing frame, and a driving gear that meshes and matches with the transmission gear is rotatably provided on the swing frame.

[0008] Preferably, the end of the air receiving duct is provided with a tower gear group that meshes with the driving gear, and the inner end of the installation bin is provided with a reciprocating screw rod.

[0009] Preferably, a synchronous gear meshing with the tower gear set is provided at the end of the reciprocating screw, a transverse frame is threadedly sleeved on the reciprocating screw, a scraper frame acting on the outer surface of the heat dissipation fin is fixedly mounted on the transverse frame, and the scraper frame is slidably sleeved with the balance groove.

[0010] Preferably, a reversing push rod is fixedly mounted on the end of the transverse frame, a stop ear rotatably provided on the swing frame for contacting and matching with the reversing push rod, and a stop block for providing position limitation for the stop ear is also provided on the swing frame.

[0011] Preferably, a plug board is fixedly mounted on the inner side of the swing frame, a slot for inserting the plug board is opened on the end side of the battery box group, and a magnetic block matching the magnetic attraction of the plug board is fixedly mounted in the slot.

[0012] Preferably, a battery rack for clamping the battery body is provided in the battery box assembly, and a placement hole for inserting the battery body is provided on the battery rack.

[0013] Preferably, an embedded groove is provided on the inner side of the battery rack, and a clamping mechanism for locking the battery body in position is provided in the embedded groove. Adjustment grooves are provided on both side surfaces of the battery rack, and guide grooves corresponding to the position of the embedded groove are provided in the adjustment groove.

[0014] Preferably, a guide hole is provided in the guide groove, an adjustment frame is slidably sleeved in the adjustment groove to drive the clamping mechanism to move in the embedded groove, and both sides of the battery rack are provided with assembly plates to provide closure for the adjustment groove.

[0015] Preferably, the clamping mechanism includes a gear column rotatably installed in the embedded groove, and the top and bottom of the embedded groove are slidably sleeved with clamping plates that mesh with the gear column. Both side surfaces of the clamping plate are provided with connecting rods that are slidably sleeved with the guide holes, and the ends of the connecting rods are fixedly connected to the inner side of the adjustment frame.

[0016] Preferably, the inner top surface and the bottom surface of the embedded groove are both provided with a balance bar, and the outer surface of the clamping plate is provided with a sleeve groove that slidably matches the balance bar.

[0017] Preferably, a spring compartment is provided at the end of the adjustment frame, and a locking mechanism is rotatably sleeved at the end of the adjustment frame.

[0018] Preferably, the locking mechanism includes an adjusting screw rotatably sleeved with the end of the adjusting frame, a spline screw cap is provided at the end of the adjusting screw, a locking frame for locking its rotation is movably sleeved on the spline screw cap, both ends of the locking frame are provided with an insertion rod movably sleeved with a spring chamber, and a reset spring connected to the end of the insertion rod is fixedly connected in the spring chamber.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. By collecting natural wind during the driving of electric vehicles, the air collection sleeve collects the flowing air into the air collection duct, realizing the effective use of natural air cooling. At the same time, the air drives the fan blades to rotate, and then drives a series of transmission devices, so that the heat dissipation fins can better transfer heat. This combination of active heat dissipation and natural air cooling can quickly and effectively reduce the temperature inside the battery box group, avoiding battery performance degradation or shortened life due to overheating.

[0020] 2. The scraper on the transverse frame can be used to clean the surface of the heat sink fins. During long-term use, dust and other debris are easily accumulated on the surface of the heat sink fins, which will affect the heat dissipation efficiency of the heat sink fins. The cleaning function of the scraper can ensure the cleanliness of the surface of the heat sink fins, and the alternating movement of the two transverse frames can continuously optimize the contact effect between the heat sink fins and the flowing air, enhance heat transfer, and ensure that the battery pack can maintain a good heat dissipation state under various working conditions.

[0021] 3. The reversing mechanism of the swing frame ensures that the reciprocating screw drives the alternating motion of the transverse frame to continue. The coordination of the plug plate, slot and magnetic block, as well as the interaction between the stopper, stopper and reversing push rod, achieves stable reversing operation, enables the heat dissipation system to operate stably for a long time, and improves the reliability of the heat dissipation of the entire battery pack.

[0022] 4. Through the setting of the battery rack, the battery body is inserted into the placement hole of the battery rack, and the battery rack and the battery box group are fixed with bolts, which provides a basic fixing method for the battery and can effectively prevent the battery from having a large displacement in the battery box group.

[0023] 5. Through the setting of the clamping mechanism and the locking mechanism, the adjustment screw and the spline screw cap cooperate. When adjustment is needed, the rotation lock of the spline screw cap by the locking frame can be easily released to adjust the position of the adjustment frame. After the adjustment is completed, it can be quickly locked. This design not only facilitates the adjustment of the battery fixed position during installation and maintenance, but also ensures the stability of the battery position during normal use.

[0024] In summary, the present invention overcomes the shortcomings of the prior art, cleverly integrates active heat dissipation and natural air cooling, and uses a scraper to alternately clean dust on the surface of the heat dissipation fins to continuously optimize the heat transfer effect. It does not require an additional power source for control and has high social use value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is an exploded schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 5 It is a schematic diagram of the structure of the heat dissipation fins in the present invention; Figure 6 It is a schematic diagram of the structural position of the transverse frame in the present invention; Figure 7 Based Figure 6 A magnified view of the local structure at point A in the middle; Figure 8 It is a partial schematic diagram of the end structure of the battery box group in the present invention; Fig. 9 Based Figure 8 A magnified view of the local structure at B in the middle; Fig.10 A schematic diagram of the structural splicing of the battery rack and the battery body in the present invention; Fig.11 It is a schematic diagram of the explosion structure of the battery rack in the present invention; Fig.12 It is a schematic diagram of the structural cross-section of the locking mechanism in the present invention; Fig.13 It is a schematic diagram of the internal structure of the battery rack in the present invention; Fig.14 This is a schematic diagram of the outer structure of the battery rack in the present invention; Fig.15 It is a structural schematic diagram of the clamping mechanism in the present invention.

[0027] In the figure: 100, battery box assembly; 1001, installation compartment; 1002, cover plate; 1003, air collection duct; 1004, air collection sleeve; 1005, air outlet guard plate; 1006, balance slot; 1007, slot; 200, battery body; 1, cooling fin; 2, fan blade; 21, driving bevel gear; 3, main shaft; 31, driven bevel gear; 32, driving spur gear; 4, adjustment mechanism; 401, swing frame; 402, transmission gear; 403, driving gear; 404, stop ear; 405, stop block; 406, plug plate; 41, tower gear assembly; 42, reciprocating screw rod; 42 1. Synchronous gear; 43. Transverse frame; 431. Scraper frame; 432. Reversing push rod; 5. Magnetic block; 6. Battery rack; 601. Placement hole; 602. Adjustment slot; 6021. Guide slot; 6022. Guide hole; 603. Embedded slot; 6031. Balance bar; 61. Assembly plate; 7. Adjustment frame; 71. Spring bin; 8. Clamping mechanism; 801. Gear column; 802. Clamping plate; 8021. Sleeve slot; 803. Connecting rod; 9. Locking mechanism; 901. Adjustment screw; 902. Spline screw cap; 903. Locking frame; 904. Insertion rod; 905. Return spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0029] Example 1 Reference Figure 1-15A high-performance lithium-ion battery pack for electric vehicles includes a battery box group 100 and a battery body 200. The battery body 200 is arranged inside the battery box group 100. A heat sink 1 for providing heat transfer inside the battery box group 100 is fixedly inserted at the bottom of the battery box group 100. The heat sink 1 penetrates the bottom surface of the battery box group 100 and extends to the inside of the battery box group 100, so that the heat sink 1 can transfer the heat emitted by the battery body 200 inside the battery box group 100, so that the heat can move from one end of the heat sink 1 inside the battery box group 100 to the other end outside the battery box group 100, so as to facilitate the heat dissipation treatment of the inside of the battery box group 100. An installation compartment 1001 is provided in the middle of the inner cavity of the battery box group 100. An air collecting duct 1003 is fixed in the installation compartment 1001, and a sealing cover plate 1002 is provided on the top surface of the battery box group 100. The sealing cover plate 1002 cooperates with the battery box group 100 to seal and protect the battery body 200 inside the battery box group 100. An air collecting sleeve 1004 connected to the air collecting duct 1003 is provided on the side of the battery box group 100. When the electric vehicle installed with the battery pack moves, the wind generated by the air collecting sleeve 1004 can enter therein, so that the air collecting sleeve 1004 can complete the collection of flowing air, so that the flowing air can enter the interior of the air collecting duct 1003. An air outlet guard plate 1005 is provided on the other side of the battery box group 100, and a balancing groove 1006 is provided at the bottom of the battery box group 100. The inner end of the air collecting duct 1003 is provided with a fan blade 2 located on one side of the air outlet guard plate 1005, and the axial position of the fan blade 2 is provided with an active bevel gear 21. The end of the battery box group 100 is provided with a transmission device located on one side of the fan blade 2. When the electric vehicle drives the battery pack to move, the flowing air will enter the air collecting duct 1003 through the air collecting sleeve 1004, and then be discharged through the fan blade 2. When the air flows through the fan blade 2, it can drive the fan blade 2 to rotate, so that the fan blade 2 can synchronously drive the active bevel gear 21 to rotate.

[0030] Specifically, refer to Figure 6 and Figure 7 The transmission device includes a main shaft 3, a driven bevel gear 31 and a driving spur gear 32. The main shaft 3 is rotatably connected to the end of the battery box group 100. The driven bevel gear 31 is fixedly installed at the end of the main shaft 3. The driven bevel gear 31 is meshed and matched with the driving bevel gear 21. The driving spur gear 32 is fixedly installed in the middle of the main shaft 3. When the driving bevel gear 21 rotates, it can drive the driven bevel gear 31 to rotate. Through the transmission effect of the main shaft 3, the driving spur gear 32 can also rotate synchronously.

[0031] Specifically, refer to Figure 7-9The transmission device also includes an adjustment mechanism 4 installed at the end of the battery box group 100, and the adjustment mechanism 4 includes a swing frame 401 rotatably connected to the end of the battery box group 100. A transmission gear 402 that meshes and matches with the active spur gear 32 is rotatably provided on the swing frame 401. A driving gear 403 that meshes and matches with the transmission gear 402 is rotatably provided on the swing frame 401. During the rotation of the active spur gear 32, the driving gears 403 at both ends of the swing frame 401 can be rotated synchronously through the transmission action of the transmission gear 402.

[0032] Specifically, refer to Figure 6-9 The end of the air collecting duct 1003 is provided with a tower gear group 41 that meshes and matches with the driving gear 403, and the inner end of the installation chamber 1001 is provided with a reciprocating screw rod 42. The setting of the driving gear 403 can mesh and match with the tower gear group 41, so that the driving gear 403 drives the tower gear group 41 to rotate. The number of the tower gear group 41, the reciprocating screw rod 42, the transmission gear 402 and the driving gear 403 is two. The driving gears 403 located at both ends of the swing frame 401 can be individually meshed and matched with the tower gear group 41 on the same side. When the tower gear group 41 on the left side of the end of the air collecting duct 1003 is meshed and matched with the driving gear 403 on the same side, the tower gear group 41 on the right side of the end of the air collecting duct 1003 will not be meshed and matched with the driving gear 403 on the same side. Conversely, the rotation of the two reciprocating screw rods 42 will be performed alternately.

[0033] Specifically, refer to Figure 6-9 The end of the reciprocating screw rod 42 is provided with a synchronous gear 421 that meshes with the tower gear group 41, and the reciprocating screw rod 42 is threadedly sleeved with a transverse frame 43, and a scraper frame 431 that acts on the outer surface of the heat sink fin 1 is fixedly installed on the transverse frame 43, and the scraper frame 431 is slidably sleeved with the balance groove 1006. The rotation of the reciprocating screw rod 42 is realized by the meshing and matching between the synchronous gear 421 and the tower gear group 41. When the synchronous gear 421 and the tower gear group 41 are meshed with them through the rotation of the swing frame 401, the tower gear group 41 can rotate, and vice versa. The transverse frames 43 at both ends of the bottom of the battery box group 100 will also perform alternating movements according to the rotation of the reciprocating screw rod 42 when they are moved by the reciprocating screw rod 42. The two transverse frames 43 will not move horizontally synchronously to ensure the contact effect between the surfaces of multiple heat sink fins 1 and the flowing air, and to avoid the synchronous and simultaneous movement of the two transverse frames 43 affecting the heat transfer efficiency of the contact between the heat sink fins 1 and the flowing air.

[0034] Specifically, refer to Figure 6-9A reversing push rod 432 is fixedly installed on the end of the transverse moving frame 43, and a stop ear 404 that contacts and matches the reversing push rod 432 is rotatably provided on the swing frame 401, and a stop block 405 is also provided on the swing frame 401 to provide a position limit for the stop ear 404. Through the setting of the reversing push rod 432, when the transverse moving frame 43 on the left side of the heat dissipation fin 1 moves to an end close to the adjustment mechanism 4, the reversing push rod 432 will make contact with the stop ear 404. With the continuous movement of the transverse moving frame 43, the reversing push rod 432 will push the stop ear 404, allowing the swing frame 401 to adjust its angle around the axis of connection with the battery box group 100. When the reversing push rod 432 pushes the stop ear 404, the stop block 405 can limit the relative position between the stop ear 404 and the swing frame 401, and a torsion spring is provided on the shaft connecting the stop ear 404 and the swing frame 401 to facilitate the reset operation of the stop ear 404.

[0035] Specifically, refer to Figure 6-9 , a plug plate 406 is fixedly installed on the inner side of the swing frame 401, and a slot 1007 for inserting the plug plate 406 is provided on the side of the end of the battery box group 100, and a magnetic block 5 that matches the plug plate 406 is fixedly installed in the slot 1007. When the reversing push rod 432 pushes the stop ear 404, the swing frame 401 will adjust its angle. As the reversing push rod 432 continues to push the stop ear 404 to move, the contact area between the reversing push rod 432 and the stop ear 404 is reduced until the reversing push rod 432 no longer contacts the stop ear 404. At this time, the plug plate 406 is just inserted into the slot 1007, and the plug plate 406 is magnetically attracted by the magnetic block 5, so that the plug plate 406 is stably inserted into the slot 1007, and the driving gear 403 on the same side will also be separated from the tower gear group 41, and no longer meshing and matching; When the gear 406 is in the same position as the gear 407, the gear 406 is in the same position as the gear 407. When the gear 406 is in the same position as the gear 407, the gear 406 is in the same position as the gear 407. When the gear 406 is in the same position as the gear 407, the gear 406 is in the same position as the gear 407.

[0036] Example 2 Reference Figure 1-15The difference between this embodiment and embodiment 1 is that a battery rack 6 for clamping the battery body 200 is provided in the battery box group 100, and a placement hole 601 for inserting the battery body 200 is opened on the battery rack 6. The battery body 200 can be inserted into the placement hole 601. The battery rack 6 and the battery box group 100 are directly fixed with bolts to ensure the stability of the battery body 200 inside the battery box group 100.

[0037] Specifically, refer to Figure 11-15 An embedded groove 603 is provided on the inner side of the battery rack 6, and a clamping mechanism 8 is provided in the embedded groove 603 to provide position locking for the battery body 200. Adjustment grooves 602 are provided on both sides of the battery rack 6, and a guide groove 6021 corresponding to the position of the embedded groove 603 is provided in the adjustment groove 602. The setting of the clamping mechanism 8 can cooperate with the placement hole 601 and the battery rack 6 to provide a locking effect for the battery body 200 in the placement hole 601, thereby preventing the battery body 200 from shaking inside the battery box assembly 100.

[0038] Specifically, refer to Figure 10-14 A guide hole 6022 is provided at the top of the inner side of the guide groove 6021, and an adjustment frame 7 is slidably sleeved in the adjustment groove 602 to drive the clamping mechanism 8 to move in the embedded groove 603. Both sides of the battery frame 6 are provided with an assembly plate 61 to provide a closure for the adjustment groove 602. The adjustment frame 7 can move horizontally in the left and right directions inside the adjustment groove 602 to drive the clamping mechanism 8 to adjust its position, so that the clamping mechanism 8 can lock the position of the battery body 200.

[0039] Specifically, refer to Fig.11 , Fig.13 and Fig.15 The clamping mechanism 8 includes a gear column 801 rotatably installed in the embedded groove 603, and the top and bottom of the embedded groove 603 are slidably sleeved with a clamping plate 802 meshing with the gear column 801. Both sides of the clamping plate 802 are provided with a connecting rod 803 slidably sleeved with the guide hole 6022. The end of the connecting rod 803 is fixedly connected to the inner side of the adjustment frame 7. No guide holes 6022 are set on both sides of the clamping plate 802 at the bottom of the embedded groove 603. When the adjustment frame 7 moves, it will drive the connecting rod 803 to move inside the guide hole 6022, so that the connecting rod 803 drives the clamping plate 802 to move, and then through the meshing synchronization action of the gear column 801, the clamping plate 802 inside the same embedded groove 603 can perform synchronous reverse movement.

[0040] Specifically, refer to Fig.13 and Fig.15The top and bottom surfaces of the inner side of the embedded groove 603 are both provided with a balance bar 6031, and the outer surface of the clamping plate 802 is provided with a sleeve groove 8021 that slidably matches the balance bar 6031. The setting of the balance bar 6031 cooperates with the sleeve groove 8021 to provide a limit and balance function for the movement of the clamping plate 802.

[0041] Specifically, refer to Figure 8 and Fig.12 A spring compartment 71 is provided at the end of the adjustment frame 7, and a locking mechanism 9 is rotatably sleeved at the end of the adjustment frame 7. The relative position of the adjustment frame 7 and the battery box group 100 can be adjusted by the locking mechanism 9, so that the adjustment frame 7 can be adjusted laterally inside the adjustment groove 602 to adjust the locking of the clamping mechanism 8 on the battery body 200.

[0042] Specifically, refer to Figure 8 and Fig.12 The locking mechanism 9 includes an adjusting screw 901 rotatably sleeved with the end of the adjusting frame 7, a spline screw cap 902 is provided at the end of the adjusting screw 901, and a locking frame 903 for locking its rotation is movably sleeved on the spline screw cap 902, and both ends of the locking frame 903 are provided with a plug rod 904 movably sleeved with the spring chamber 71, and a return spring 905 connected to the end of the plug rod 904 is fixedly connected in the spring chamber 71. When the position of the adjusting frame 7 needs to be adjusted, the locking frame 903 is squeezed in the direction close to the battery box group 100 to allow the plug rod 904 to be moved. The return spring 905 inside the spring chamber 71 can be compressed so that the rotation lock of the spline screw cap 902 by the locking frame 903 is released, and then the relative position between the adjustment frame 7 and the battery box group 100 can be adjusted by rotating the spline screw cap 902. After the adjustment is completed, the locking frame 903 can be released to restore the elastic deformation of the return spring 905, so that the locking frame 903 can lock the rotation of the spline screw cap 902 again. The inner side of the locking frame 903 is provided with a spline groove matching the outer side of the spline screw cap 902.

[0043] For other structures not described, refer to Example 1.

[0044] Working principle: In the present invention, when the electric vehicle moves, the wind force generated is collected by the wind collecting sleeve 1004, and the air enters the air collecting duct 1003. At the same time, in this process, the natural wind during the driving of the electric vehicle is used to make it contact with the surface of the heat dissipation fin 1, so as to transfer and dissipate the heat inside the battery box group 100 through the heat dissipation fin 1; When the flowing air passes through the fan blade 2 in the air collecting duct 1003, the fan blade 2 is driven to rotate, and the driving bevel gear 21 on the axis of the fan blade 2 rotates accordingly, and the driving bevel gear 21 meshes with the driven bevel gear 31 to transmit power to the main shaft 3, so that the driving spur gear 32 on the main shaft 3 rotates synchronously; The rotation of the active spur gear 32 drives the driving gear 403 on the swing frame 401 to rotate synchronously through meshing with the transmission gear 402. The driving gear 403 meshes with the tower gear set 41 at the end of the air receiving duct 1003 to drive the tower gear set 41 to rotate. The tower gear set 41 is connected to the reciprocating screw rod 42 through the synchronous gear 421 to rotate the reciprocating screw rod 42. The transverse frame 43 threadedly mounted on the reciprocating screw 42 moves transversely when the screw rotates, and the scraper 431 on the transverse frame 43 acts on the outer surface of the heat sink fin 1. During the transverse movement of the scraper 431, firstly, dust and other debris that may have accumulated on the surface of the heat sink fin 1 are cleaned to ensure the heat dissipation efficiency of the heat sink fin 1; secondly, the heat sink fin 1 is better in contact with the flowing air through transverse movement to enhance the heat transfer effect. Moreover, the two transverse frames 43 move alternately to avoid the influence of synchronous movement on the heat transfer efficiency of the heat sink fin 1 in contact with the flowing air; When the reversing push rod 432 at the end of the transverse frame 43 on one side contacts and pushes the stop ear 404 on the swing frame 401, the swing frame 401 adjusts its angle around the axis of connection with the battery box group 100. In this process, the plug plate 406 is inserted into the slot 1007 and is magnetically attracted by the magnetic block 5, the driving gear 403 on the same side is separated from the tower gear group 41, and the driving gear 403 on the other side is meshed with the tower gear group 41, so that the other reciprocating screw rod 42 drives the transverse frame 43 to move horizontally, realizing the continuous cleaning of the heat sink fins 1 and enhancing the heat transfer operation; The battery body 200 is inserted into the placement hole 601 of the battery rack 6, and the battery rack 6 and the battery box assembly 100 are directly fixed by bolts to ensure the basic stability of the battery body 200 inside the battery box assembly 100; The adjustment frame 7 slides in the adjustment slot 602, and the spring chamber 71 and the locking mechanism 9 at the end of the adjustment frame 7 are used to adjust and lock the position of the adjustment frame 7. When adjustment is required, the locking frame 903 is pressed toward the direction close to the battery box group 100, so that the insertion rod 904 compresses the return spring 905, and the rotation lock of the spline screw cap 902 is released. The position of the adjustment frame 7 can be adjusted by rotating the spline screw cap 902; When the adjustment frame 7 moves, the connecting rod 803 drives the clamping plate 802 in the embedded groove 603 to move. The meshing synchronization of the gear column 801 enables the clamping plate 802 in the same embedded groove 603 to move in the opposite direction synchronously, and cooperates with the balance bar 6031 and the sleeve groove 8021 to lock the position of the battery body 200, so as to prevent the battery body 200 from shaking in the placement hole 601.

[0045] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-performance lithium-ion battery pack for electric vehicles, comprising a battery box assembly and a battery body, characterized in that: The battery body is arranged inside the battery box group, a heat dissipation fin for providing heat transfer inside the battery box group is fixedly inserted at the bottom of the battery box group, a mounting compartment is arranged in the middle of the inner cavity of the battery box group, an air collecting duct is fixed in the mounting compartment, a sealing plate is arranged on the top surface of the battery box group, an air collecting sleeve connected to the air collecting duct is arranged on the side of the battery box group, an air outlet guard plate is arranged on the other side of the battery box group, and a balancing groove is arranged at the bottom of the battery box group; The inner end of the air collecting duct is provided with a fan blade located on one side of the air outlet guard plate, the axis of the fan blade is provided with an active bevel gear, and the end of the battery box group is provided with a transmission device located on one side of the fan blade; The transmission device comprises a main shaft, a driven bevel gear and a driving spur gear, the main shaft is rotatably connected to the end of the battery box group, the driven bevel gear is fixedly installed on the end of the main shaft, the driven bevel gear is meshed with the driving bevel gear, and the driving spur gear is fixedly installed in the middle of the main shaft; The transmission device also includes an adjustment mechanism installed at the end of the battery box group, and the adjustment mechanism includes a swing frame rotatably connected to the end of the battery box group, a transmission gear meshing with the active spur gear is rotatably provided on the swing frame, and a driving gear meshing with the transmission gear is rotatably provided on the swing frame; The end of the air receiving duct is provided with a tower gear group meshing with the driving gear, and the inner end of the installation bin is provided with a reciprocating screw rod; The end of the reciprocating screw rod is provided with a synchronous gear meshing with the tower gear set, the reciprocating screw rod is provided with a transverse frame, the transverse frame is provided with a scraper acting on the outer surface of the heat dissipation fin, and the scraper is slidably sleeved with the balance groove; A reversing push rod is fixedly installed at the end of the transverse frame, a stop ear which contacts and matches with the reversing push rod is rotatably provided on the swing frame, and a stop block is also provided on the swing frame.

2. A high-performance lithium-ion battery pack for electric vehicles according to claim 1, characterized in that: An inserting plate is fixedly installed on the inner side of the swing frame, and a slot is opened on the side of the end of the battery box group. A magnetic block that matches the magnetic attraction of the inserting plate is fixedly installed in the slot.

3. The high-performance lithium-ion battery pack for electric vehicles according to claim 1, characterized in that: The battery box group is provided with a battery rack for clamping the battery body, and the battery rack is provided with a placement hole for inserting the battery body.

4. A high-performance lithium-ion battery pack for electric vehicles according to claim 3, characterized in that: An embedded groove is provided on the inner side of the battery rack, and a clamping mechanism for locking the battery body is provided in the embedded groove. Adjustment grooves are provided on both sides of the battery rack, and guide grooves corresponding to the positions of the embedded grooves are provided in the adjustment grooves.

5. A high-performance lithium-ion battery pack for electric vehicles according to claim 4, characterized in that: A guide hole is provided in the guide groove, an adjustment frame is slidably sleeved in the adjustment groove to drive the clamping mechanism to move in the embedded groove, and both sides of the battery frame are provided with assembly plates to provide closure for the adjustment groove.

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