Lithium battery capable of rapidly dissipating heat

Abstract

The invention discloses a rapid heat dissipation lithium battery, and belongs to the technical field of lithium batteries, through arrangement of a torque adjusting mechanism and a lifting mechanism, the distance between two lithium battery monomers is changed through transverse movement of a push rod in a positioning cavity, transverse dispersion of the lithium battery monomers is completed, and meanwhile, the height of each lithium battery monomer is changed along with transverse dispersion of the lithium battery monomers; the longitudinal dispersion of the single lithium batteries is completed, so that the single lithium batteries are changed from a concentrated state to a dispersed state through transverse movement and lifting, the contact area between airflow and the single lithium batteries is increased, and the purpose of rapid cooling is achieved; through the arranged guide mechanism, the lithium battery monomers at different positions are dispersed in a stepped manner, the air flow is blocked and changed by the stepped surface in the ascending or descending process, and the air flow is guided to flow along the stepped direction, so that the contact area between the air flow and the lithium battery monomers is increased, the heat exchange efficiency is improved, and the heat dissipation speed is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular to a lithium battery with rapid heat dissipation. Background Art

[0002] Integrated lithium battery is a highly integrated battery system that integrates multiple lithium battery cells, battery management system (BMS), protection circuits and other necessary components. At the same time, multiple lithium battery cells are combined in series or parallel to meet specific voltage and capacity requirements. The operating temperature range of conventional lithium-ion batteries is generally -20℃~60℃. When the temperature is between 0℃~40℃, the performance of lithium-ion batteries is the best and their charging and discharging capabilities can be fully utilized. When the temperature is below 0℃, the performance of lithium-ion batteries will decrease and the discharge capacity will decrease accordingly. When the temperature is above 60℃, as the operating temperature of the battery increases, there is a risk of overheating, combustion, and explosion. Integrated lithium batteries usually have a higher energy density, which means that more electrical energy is contained in a limited volume. High energy density also brings higher heat generation, so how to quickly dissipate heat is one of the factors that need to be considered for integrated lithium batteries; Existing integrated lithium batteries achieve heat dissipation by adding a heat dissipation component. The radiator draws cold air from the bottom of the integrated lithium battery, passes through the lithium battery cells, and then discharges it from the top. However, in actual use, in order to reduce the volume and increase the energy density, the integrated lithium batteries are usually arranged compactly. This compact arrangement limits the heat dissipation channel, making it difficult to dissipate the heat effectively, so the radiator is not effective. Summary of the invention

[0003] The purpose of the present invention is to propose a lithium battery with fast heat dissipation in order to solve the problem that the layout of integrated lithium batteries is usually compact, which limits the heat dissipation channel, makes it difficult for heat to be effectively dissipated through the radiator, and the radiator has a poor use effect.

[0004] In order to achieve the above purpose, the present invention adopts the following technology to provide a lithium battery with rapid heat dissipation: The invention comprises an integrated lithium battery body and a plurality of lithium battery cells in a concentrated state arranged in the integrated lithium battery body, wherein two adjacent lithium battery cells are connected by a torque regulating mechanism, and the torque regulating mechanism comprises a mounting shell sleeved on the surfaces of the two lithium battery cells, two push rods mounted on the mounting shell and symmetrically to the center, and a positioning cavity sleeved on the two push rods, and the spacing between adjacent lithium battery cells is changed by lateral movement of the push rods to realize lateral dispersion of the lithium battery cells; The positioning cavity is provided with a lifting mechanism, which includes a plurality of vertically lifting sliders arranged in the integrated lithium battery body. The positioning cavity is connected to the sliders and is lifted and lowered to achieve longitudinal dispersion of the lithium battery monomers. The lithium battery monomers are changed from a concentrated state to a dispersed state through lateral movement and lifting. The movement amplitude of the lithium battery cell is controlled by a guiding mechanism, which includes a plate body arranged in the integrated lithium battery body and an inclined first guiding groove and a second guiding groove opened on the plate body. The distance between the two ends of the first guiding groove and the second guiding groove in the vertical direction is the same as the lifting distance of the lithium battery cell, and the distance between the two ends in the horizontal direction is the same as the lateral movement distance of the lithium battery cell.

[0005] As a further description of the above technology, a lithium battery with rapid heat dissipation: The torque adjustment mechanism also includes mounting rods arranged at the top and bottom of the mounting shell, and the push rod is mounted on the top mounting rod; The lifting mechanism further comprises a first connecting rod arranged at the top of the positioning cavity, and a positioning pin connected to any one of the sliding block and the positioning block is arranged at the end of the first connecting rod; The guiding mechanism further comprises a second connecting rod connected to the bottom mounting rod, and a guide rod penetrating any one of the first guiding groove and the second guiding groove is mounted at the end of the second connecting rod.

[0006] As a further description of the above technology, a lithium battery with rapid heat dissipation: The inner wall of the positioning cavity is provided with a slide rail, and the push rod is provided with a guide groove engaged with the slide rail; A rotating shaft is rotatably arranged in the middle of the positioning cavity, a gear is sleeved on the surface of the rotating shaft, and racks meshing with the gear are arranged on both push rods.

[0007] As a further description of the above technology, a lithium battery with rapid heat dissipation: A rotating cavity is arranged at the bottom of the positioning cavity, a rotating shaft penetrates into the rotating cavity and a torsion spring is wound around the surface, and both ends of the torsion spring are connected to the inner wall of the rotating cavity.

[0008] As a further description of the above technology, a lithium battery with rapid heat dissipation: The lifting mechanism further comprises a slide groove arranged in the integrated lithium battery body, a positioning block is fixedly arranged in the slide groove and a first threaded rod and a second threaded rod with opposite threads are rotatably arranged on the positioning block, the first threaded rod and the second threaded rod pass through the positioning block and are connected at their ends; The slider is slidably embedded in the slide groove and a collar is fixedly arranged inside the slider. The inner wall of the collar is provided with a thread groove and is respectively engaged and sleeved on any one of the first threaded rod and the second threaded rod.

[0009] As a further description of the above technology, a lithium battery with rapid heat dissipation: The threads arranged on the slide groove and the first threaded rod are both designed with non-constant pitches, so that when the second threaded rod and the first threaded rod rotate one circle, the sliding blocks at different pitches move different distances.

[0010] As a further description of the above technology, a lithium battery with rapid heat dissipation: The pitch of the threads set on the second threaded rod and the first threaded rod is the same as the distance in the vertical direction between the two ends of the first guide groove and the second guide groove at the corresponding positions. When the second threaded rod and the first threaded rod rotate one circle, the guide rod moves from one end of any one of the first guide groove and the second guide groove to the other end.

[0011] As a further description of the above technology, a lithium battery with rapid heat dissipation: The integrated lithium battery body includes a battery installation cavity for placing lithium battery cells, a radiator installation cavity arranged below the battery installation cavity, and an air intake cavity arranged below the radiator installation cavity. A radiator is installed in the radiator installation cavity, and an air volume adjustment mechanism corresponding to the air outlet position of the radiator is arranged at the bottom opening of the battery installation cavity. The air volume adjustment mechanism includes multiple movable gate plates, and the multiple gate plates can be combined into a circular ring for changing the diameter of the air outlet.

[0012] As a further description of the above technology, a lithium battery with rapid heat dissipation: The air volume adjustment mechanism also includes a mounting ring arranged on the bottom opening of the battery mounting cavity and a rotating disk rotatably arranged on the mounting ring; The surface of the mounting ring is provided with straight grooves having the same number as the gate plate, and a slide bar is embedded in the straight groove and moves horizontally along the length direction of the straight groove, and the gate plate is mounted on the slide bar; The surface of the turntable is provided with a third guide groove, and the slide bars all penetrate through the third guide groove and abut against the third guide groove. When the turntable rotates, the slide bars are pushed to slide in the straight groove through the third guide groove.

[0013] As a further description of the above technology, a lithium battery with rapid heat dissipation: The top of the first threaded rod is connected to a motor installed in the integrated lithium battery body, and the bottom of the second threaded rod is sleeved with a transmission wheel. The surface of the turntable and the transmission wheel is sleeved with a transmission belt for transmission. When the lithium battery cell changes from a concentrated state to a dispersed state, the gate plate moves and combines to reduce the air outlet to increase the flow rate.

[0014] In summary, due to the use of the above-mentioned technology to quickly dissipate heat in a lithium battery, the beneficial effects of the present invention are: 1. Through the torque adjustment mechanism and lifting mechanism, the distance between two lithium battery cells is changed by the push rod moving horizontally in the positioning cavity, the lateral dispersion of the lithium battery cells is completed, and the height of each lithium battery cell changes accordingly, and the longitudinal dispersion of the lithium battery cell is completed, so that the lithium battery cell is changed from a concentrated state to a dispersed state through lateral movement and lifting, thereby increasing the contact area between the airflow and the lithium battery cell and achieving the purpose of rapid cooling.

[0015] 2. Through the setting of the guiding mechanism, when the guide rod moves from one end of the second guide groove or the first guide groove to the other end, it indicates that the lateral dispersion and longitudinal dispersion distance of the lithium battery monomer have reached the maximum, thereby achieving the purpose of controlling the movement amplitude of the lithium battery monomer; the lithium battery monomers at different positions are dispersed in a stepped manner, and the airflow is blocked and changed by the step surface during the rising or falling process, and the airflow is guided to flow along the direction of the step, thereby increasing the contact area between the airflow and the lithium battery monomer, increasing the efficiency of heat exchange, and improving the heat dissipation speed. At the same time, within a reasonable temperature range, the lithium battery monomers actively gather into a compact state, which helps to reduce the air gap between the lithium battery monomers and reduce the resistance of heat conduction, so that the battery can maintain stable performance at normal working temperature, thereby achieving the purpose of improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a lithium battery with rapid heat dissipation is shown; Figure 2 A schematic diagram of the front cross-sectional structure showing the dispersed state of lithium battery cells in the battery installation cavity; Figure 3 A schematic diagram of the front cross-sectional structure showing the concentrated state of lithium battery cells in the battery installation cavity is shown; Figure 4 A schematic diagram of a first partial three-dimensional structure of a lithium battery with rapid heat dissipation is shown; Figure 5 A second partial three-dimensional structural schematic diagram of a lithium battery with rapid heat dissipation is shown; Figure 6 Shows Figure 5 A schematic diagram of the enlarged structure at A in the middle; Figure 7 A schematic diagram of the three-dimensional structure of two lithium battery cells when they are attached together through a torque adjustment mechanism is shown; Figure 8 A schematic diagram of the three-dimensional structure when two lithium battery cells are separated by a torque regulating mechanism is shown; Fig. 9 A schematic diagram of the top cross-sectional structure of the torque regulating mechanism is shown; Fig.10 A schematic diagram of the side cross-sectional structure of the torque regulating mechanism is shown; Fig.11A partial three-dimensional structural schematic diagram of the lifting mechanism and the air volume adjustment mechanism is shown; Fig.12 A partial three-dimensional cross-sectional structural schematic diagram of the lifting mechanism is shown; Fig.13 A schematic diagram of the three-dimensional structure of the plate is shown; Fig.14 A partial three-dimensional structural schematic diagram of an air volume adjustment mechanism installed at the bottom of the battery installation cavity is shown; Fig.15 A schematic diagram of the cross-sectional structure of the air volume adjustment mechanism is shown; Fig.16 A partial top view structural schematic diagram of the air volume regulating mechanism when the shutter is in the open state is shown.

[0017] Legend: 10. Integrated lithium battery body; 101. Battery installation cavity; 102. Radiator installation cavity; 103. Air intake cavity; 104. Radiator; 20. Lithium battery cell; 30. Motor; 40. torque adjustment mechanism; 41. mounting shell; 42. mounting rod; 43. push rod; 431. guide groove; 432. rack; 44. positioning cavity; 441. slide rail; 442. rotating shaft; 443. gear; 444. torsion spring; 445. rotating cavity; 50. lifting mechanism; 51. first connecting rod; 52. positioning pin; 53. slider; 54. positioning block; 55. collar; 56. slide groove; 57. first threaded rod; 58. second threaded rod; 60. guide mechanism; 61. bracket; 62. plate body; 63. first guide groove; 64. second guide groove; 65. second connecting rod; 66. guide rod; 70. air volume adjustment mechanism; 71. mounting ring; 72. straight groove; 73. slide bar; 74. gate; 75. rotating disk; 76. third guide groove; 81. Transmission wheel; 82. Transmission belt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technology in the embodiments of the present invention, a lithium battery with rapid heat dissipation. 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.

[0019] In order to solve the problem that the integrated lithium battery is usually arranged compactly, such a compact arrangement limits the heat dissipation channel, making it difficult for the heat to be effectively dissipated through the radiator, and the use effect of the radiator is poor, the present invention proposes a lithium battery with rapid heat dissipation, such as Figure 1 - Fig.16 As shown: The integrated lithium battery body 10 and a plurality of lithium battery cells 20 in a concentrated state are arranged in the integrated lithium battery body 10. Figure 2 As shown, the integrated lithium battery body 10 includes a battery installation cavity 101 for placing a lithium battery cell 20, a radiator installation cavity 102 arranged below the battery installation cavity 101, and an air intake cavity 103 arranged below the radiator installation cavity 102. A radiator 104 is installed at the radiator installation cavity 102. An air volume adjustment mechanism 70 corresponding to the air outlet position of the radiator 104 is arranged at the bottom opening of the battery installation cavity 101. The air volume adjustment mechanism 70 includes a plurality of movable gate plates 74, and the plurality of gate plates 74 can be combined into a ring for changing the diameter of the air outlet. With this design, the radiator 104 can inhale cold air from the air inlet cavity 103, and then introduce the cold air into the battery installation cavity 101 through the opening at the bottom of the battery installation cavity 101. After contacting the lithium battery cells 20 in a concentrated state in the battery installation cavity 101, the cold air is taken away from the surface temperature of the lithium battery cells 20, thereby achieving heat dissipation of the lithium battery cells 20. like Fig.11 , Figure 14-16 As shown, the air volume adjustment mechanism 70 further includes a mounting ring 71 disposed on the bottom opening of the battery mounting cavity 101 and a turntable 75 rotatably disposed on the mounting ring 71; The surface of the mounting ring 71 is provided with straight grooves 72 having the same number as the gate plates 74. Slide bars 73 are embedded in the straight grooves 72 and move horizontally along the length direction of the straight grooves 72. The gate plates 74 are mounted on the slide bars 73. The surface of the rotating disk 75 is provided with a third guide groove 76, and the slide bars 73 all penetrate through the third guide groove 76 and abut against the third guide groove 76. When the rotating disk 75 rotates, the slide bars 73 are pushed by the third guide groove 76 to slide in the straight groove 72; When the lithium battery cell 20 is at a normal operating temperature, the slide bar 73 moves with the rotation of the turntable 75 to the end of the straight groove 72 away from the mounting ring 71, so that the gate plates 74 are all in a state of being retracted into the gap between the mounting ring 71 and the turntable 75, and the mounting ring 71 is opened to the maximum. At this time, the air output of the radiator 104 is the largest, and more air enters the battery installation cavity 101 and contacts the surface of the lithium battery cell 20 per unit time, thereby taking away more heat; When the temperature of the lithium battery cell 20 is too high, the turntable 75 can be rotated so that the turntable 75 pushes the slide bar 73 toward the straight groove 72 through the third guide groove 76, and one end of the mounting ring 71 is close to the multiple gate plates 74. The gate plates 74 are moved out from the gap between the mounting ring 71 and the turntable 75 and combined into a circular ring. Under the obstruction of the circular ring, the air outlet area at the mounting ring 71 is reduced, and the same volume of air will generate a higher flow rate when flowing out at a smaller outlet area. Therefore, with the cooperation of the mounting ring 71 and the gate plates 74, the air outlet speed of the radiator 104 is increased, and the high wind speed can take away the heat generated by the lithium battery cell 20 more quickly, thereby reducing the temperature of the battery.

[0020] During the heat dissipation process, the increase in wind speed helps to enhance the convective heat transfer effect, so that the heat on the surface of the lithium battery cell 20 can be transferred to the surrounding environment more quickly. In order to further increase the contact area between the airflow and the lithium battery cell 20 and achieve the purpose of rapid cooling, it is necessary to convert the lithium battery cell 20 in a concentrated state into a dispersed state; Two adjacent lithium battery cells 20 are connected via a torque regulating mechanism 40. Figure 7 and Figure 8 As shown, the torque regulating mechanism 40 includes a mounting shell 41 sleeved on the surfaces of two lithium battery cells 20, two push rods 43 mounted on the mounting shell 41 and symmetrically to the center, and a positioning cavity 44 sleeved on the two push rods 43; The torque adjustment mechanism 40 further includes mounting rods 42 disposed at the top and bottom of the mounting shell 41, and a push rod 43 is mounted on the top mounting rod 42; Through this design, the distance between the two lithium battery cells 20 is changed by the push rod 43 moving horizontally in the positioning cavity 44; In order to ensure that the two lithium battery cells 20 move the same distance and move at the same speed, Fig. 9 As shown, a slide rail 441 is provided on the inner wall of the positioning cavity 44, and a guide groove 431 engaged with the slide rail 441 is provided on the push rod 43; A rotating shaft 442 is rotatably arranged in the middle of the positioning cavity 44, a gear 443 is sleeved on the surface of the rotating shaft 442, and racks 432 meshing with the gear 443 are arranged on both push rods 43; When the push rod 43 moves inside the positioning cavity 44, the push rod 43 can drive the guide groove 431 to move horizontally under the restriction of the slide rail 441, thereby preventing the push rod 43 from offsetting during the movement. At the same time, the push rod 43 drives the rack 432 to move, and the gear 443 meshing with the rack 432 rotates under the restriction of the rotating shaft 442, thereby ensuring that the other push rod 43 with central symmetry can move synchronously under the restriction of the rack 432 and the gear 443, and the lateral dispersion of the lithium battery cells 20 is completed.

[0021] In order to disperse the lithium battery cells 20 longitudinally, a lifting mechanism 50 is installed on the positioning cavity 44. Figure 10-12 The lifting mechanism 50 includes a plurality of vertically liftable sliders 53 disposed in the integrated lithium battery body 10, and the positioning cavity 44 is connected to the sliders 53 to adjust the distance between the upper and lower lithium battery cells 20; The lifting mechanism 50 further includes a first connecting rod 51 disposed at the top of the positioning cavity 44, and a positioning pin 52 connected to any one of the slider 53 and the positioning block 54 is disposed at the end of the first connecting rod 51; The lifting mechanism 50 further includes a slide groove 56 disposed in the integrated lithium battery body 10, a positioning block 54 is fixedly disposed in the slide groove 56, and a first threaded rod 57 and a second threaded rod 58 with opposite threads are rotatably disposed on the positioning block 54, the first threaded rod 57 and the second threaded rod 58 pass through the positioning block 54 and the ends are connected; The slider 53 is slidably embedded in the slide groove 56 and a ring 55 is fixedly arranged inside the slider 53. The inner wall of the ring 55 is provided with a threaded groove and is respectively engaged and sleeved on any one of the first threaded rod 57 and the second threaded rod 58. Through this design, the slider 53 will not rotate with the first threaded rod 57 and the second threaded rod 58 under the restriction of the slide groove 56. When it is necessary to adjust the height of the lithium battery cell 20, the second threaded rod 58 and the first threaded rod 57 are engaged with the ring 55 to drive the slider 53 to rise and fall inside the slide groove 56. The slider 53 drives the positioning cavity 44 to move through the positioning pin 52 and the first connecting rod 51, so that the height of each lithium battery cell 20 changes accordingly, and the longitudinal dispersion of the lithium battery cell 20 is completed, thereby achieving the purpose of changing the lithium battery cell 20 from a concentrated state to a dispersed state through lateral movement and lifting.

[0022] Furthermore, in order to avoid the lithium battery cell 20 from moving excessively and causing stability problems, the movement range of the lithium battery cell 20 is controlled by the guide mechanism 60, such as Fig.13 As shown, the guide mechanism 60 includes a plate body 62 disposed in the integrated lithium battery body 10 and an inclined first guide groove 63 and a second guide groove 64 opened on the plate body 62. A bracket 61 is disposed at the bottom of the plate body 62, and the bracket 61 is installed in the battery installation cavity 101. Preferably, the bracket 61 and the plate body 62 are symmetrically arranged in four. Fig.14 As shown; The guide mechanism 60 also includes a second connecting rod 65 connected to the bottom mounting rod 42, and a guide rod 66 penetrating any one of the first guide groove 63 and the second guide groove 64 is installed at the end of the second connecting rod 65. When the lithium battery monomer 20 is longitudinally dispersed with the lifting of the slider 53, the mounting shell 41 drives the guide rod 66 to abut against the inner wall of the first guide groove 63 or the second guide groove 64 through the second connecting rod 65. Under the push and guidance of the inner walls of the first guide groove 63 and the second guide groove 64, the guide rod 66 drives the mounting shell 41 to move through the second connecting rod 65, so that the mounting shell 41 can drive the push rod 43 to move horizontally under the restriction of the positioning cavity 44, thereby achieving the purpose of synchronously dispersing the lithium battery monomer 20 in the horizontal direction and in the vertical direction. The distance between the two ends of the first guide groove 63 and the second guide groove 64 in the vertical direction is the same as the lifting distance of the lithium battery cell 20, and the distance between the two ends in the horizontal direction is the same as the lateral movement distance of the lithium battery cell 20. When the guide rod 66 moves from one end of the second guide groove 64 or the first guide groove 63 to the other end, it indicates that the lateral dispersion and longitudinal dispersion distance of the lithium battery cell 20 are maximized, thereby achieving the purpose of controlling the movement range of the lithium battery cell 20; Preferably, the threads provided on the second threaded rod 58 and the first threaded rod 57 are both designed with non-constant pitches, so that when the slide groove 56 and the first threaded rod 57 rotate one circle, the sliders 53 at different pitches move different distances; The pitch of the threads set on the second threaded rod 58 and the first threaded rod 57 is the same as the distance between the two ends of the first guide groove 63 and the second guide groove 64 at the corresponding position in the vertical direction. When the second threaded rod 58 and the first threaded rod 57 rotate one circle, the guide rod 66 moves from one end of any one of the first guide groove 63 and the second guide groove 64 to the other end, so as to achieve the purpose of satisfying that the lithium battery cells 20 at different positions are distributed in a stepped manner after being dispersed horizontally, and at the same time, after the lithium battery cells 20 are dispersed longitudinally at different distances, the longitudinal spacing between each lithium battery cell 20 is the same. The lithium battery cells 20 dispersed in a stepped manner make the airflow blocked and changed by the step surface during the rising or falling process, and guide the airflow to flow along the direction of the step, thereby increasing the contact area between the airflow and the lithium battery cell 20, increasing the efficiency of heat exchange, and improving the heat dissipation speed. Secondly, since air is a poor conductor of heat, the overloaded battery can be isolated from the normal battery by increasing the heat conduction resistance to avoid affecting the use of other normal batteries; Secondly, due to the different heating coefficients between the lithium battery cells 20, during use, if each battery is in normal operation and no overload occurs, then at this time the batteries are in close contact with each other in a compact state, and the lithium battery cells 20 far away from and close to the radiator 104 can perform heat exchange, thereby accelerating the heat dissipation speed of the lithium battery cells 20 far away from the radiator 104. Therefore, when the lithium battery cells 20 are within a reasonable temperature range, the lithium battery cells 20 actively gather into a compact state, which helps to reduce the air gaps between the lithium battery cells 20 and reduce the resistance to heat conduction, so that the lithium battery cells 20 can maintain stable performance at normal operating temperatures, thereby achieving the purpose of improving stability.

[0023] Furthermore, in order to keep the lithium battery cells 20 close to each other when they are in a concentrated state, a rotation cavity 445 is provided at the bottom of the positioning cavity 44, and the rotating shaft 442 passes through the rotation cavity 445 and is wound with a torsion spring 444 on the surface, and both ends of the torsion spring 444 are connected to the inner wall of the rotation cavity 445; Through this design, during the lateral dispersion of the lithium battery cells 20, the gear 443 drives the rotating shaft 442 to rotate and pull the torsion spring 444 under the push of the rack 432, so that the torsion spring 444 undergoes elastic deformation under the restriction of the rotating cavity 445, thereby achieving the purpose of utilizing the elastic deformation recovery of the torsion spring 444 to quickly pull the dispersed lithium battery cells 20.

[0024] At the same time, the top of the first threaded rod 57 is connected to a motor 30 installed in the integrated lithium battery body 10. The motor 30 and the radiator 104 are connected to the integrated lithium battery body 10 through a wire and powered by the integrated lithium battery body 10. The connecting wire is an extendable and resettable spiral cable, so the movement of the integrated lithium battery body 10 will not affect the normal power supply. The bottom of the second threaded rod 58 is sleeved with a transmission wheel 81, and the surface of the turntable 75 and the transmission wheel 81 is sleeved with a transmission belt 82 for transmission. The turntable 75, the transmission wheel 81 and the transmission belt 82 are all provided with teeth that mesh with each other. When the lithium battery monomer 20 changes from a concentrated state to a dispersed state, the gate 74 moves and combines to reduce the air outlet to increase the flow rate; When the lithium battery cell 20 is overheated, the starter motor 30 drives the second threaded rod 58 to rotate so that the lithium battery cell 20 is adjusted to a dispersed state. While the lithium battery cell 20 is adjusted, the second threaded rod 58 pulls the turntable 75 to rotate through the transmission wheel 81 in cooperation with the transmission belt 82. As the turntable 75 rotates, the gate plate 74 moves and reduces the air outlet area of ​​the mounting ring 71, so as to achieve the purpose of dispersing the lithium battery cell 20 to increase the heat dissipation area and simultaneously speeding up the air outlet speed of the radiator 104. After the lithium battery cell 20 returns to normal temperature, the motor 30 reverses. After the lithium battery cell 20 returns to a more stable concentrated state of operation, the gate 74 contracts to expand the air outlet area of ​​the mounting ring 71, thereby slowing down the wind speed while providing stable heat dissipation, avoiding excessive heat dissipation and causing the temperature in the battery mounting cavity 101 to be lower than the normal operating temperature of the lithium battery cell 20, thereby ensuring the normal operation of the lithium battery cell 20.

[0025] The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes to a lithium battery with rapid heat dissipation and its inventive concept according to the technology of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery with rapid heat dissipation, comprising an integrated lithium battery body (10) and a plurality of lithium battery cells (20) arranged in the integrated lithium battery body (10) in a concentrated state, characterized in that: Two adjacent lithium battery cells (20) are connected via a torque adjustment mechanism (40), the torque adjustment mechanism (40) comprising a mounting shell (41) sleeved on the surfaces of the two lithium battery cells (20), two push rods (43) mounted on the mounting shell (41) and symmetrically centered, and a positioning cavity (44) sleeved on the two push rods (43), and the spacing between adjacent lithium battery cells (20) is changed by the push rods (43) being laterally moved, so as to achieve lateral dispersion of the lithium battery cells (20); The positioning cavity (44) is provided with a lifting mechanism (50), the lifting mechanism (50) comprising a plurality of vertically liftable sliders (53) arranged in the integrated lithium battery body (10), the positioning cavity (44) being connected to the sliders (53) to achieve longitudinal dispersion of the lithium battery cells (20), and the lithium battery cells (20) being changed from a concentrated state to a dispersed state through transverse movement and lifting; The movement amplitude of the lithium battery cell (20) is controlled by a guide mechanism (60), the guide mechanism (60) comprising a plate body (62) arranged in the integrated lithium battery body (10) and an inclined first guide groove (63) and a second guide groove (64) provided on the plate body (62), the distance between the two ends of the first guide groove (63) and the second guide groove (64) in the vertical direction being the same as the liftable distance of the lithium battery cell (20), and the distance between the two ends in the horizontal direction being the same as the lateral movement distance of the lithium battery cell (20).

2. A lithium battery with rapid heat dissipation according to claim 1, characterized in that: The torque adjustment mechanism (40) further comprises mounting rods (42) arranged at the top and bottom of the mounting shell (41), and the push rod (43) is mounted on the top mounting rod (42); The lifting mechanism (50) further comprises a first connecting rod (51) arranged at the top of the positioning cavity (44), and a positioning pin (52) connected to any one of the sliding block (53) and the positioning block (54) is arranged at the end of the first connecting rod (51); The guide mechanism (60) further comprises a second connecting rod (65) connected to the bottom mounting rod (42), and a guide rod (66) penetrating any one of the first guide groove (63) and the second guide groove (64) is mounted at the end of the second connecting rod (65).

3. A lithium battery with rapid heat dissipation according to claim 1, characterized in that: The inner wall of the positioning cavity (44) is provided with a slide rail (441), and the push rod (43) is provided with a guide groove (431) engaged with the slide rail (441); A rotating shaft (442) is rotatably disposed in the middle of the positioning cavity (44), a gear (443) is sleeved on the surface of the rotating shaft (442), and racks (432) meshing with the gear (443) are disposed on both push rods (43).

4. A lithium battery with rapid heat dissipation according to claim 3, characterized in that: A rotating cavity (445) is provided at the bottom of the positioning cavity (44), the rotating shaft (442) penetrates into the rotating cavity (445) and a torsion spring (444) is wound around the surface thereof, and both ends of the torsion spring (444) are connected to the inner wall of the rotating cavity (445).

5. A lithium battery with rapid heat dissipation according to claim 2, characterized in that: The lifting mechanism (50) further comprises a slide groove (56) disposed in the integrated lithium battery body (10), a positioning block (54) being fixedly disposed in the slide groove (56), and a first threaded rod (57) and a second threaded rod (58) having opposite threads being rotatably disposed on the positioning block (54), the first threaded rod (57) and the second threaded rod (58) penetrating the positioning block (54) and having their ends connected; The slider (53) is slidably embedded in the slide groove (56) and a collar (55) is fixedly arranged inside the slider (53). The inner wall of the collar (55) is provided with a thread groove and is respectively engaged and sleeved on any one of the first threaded rod (57) and the second threaded rod (58).

6. A lithium battery with rapid heat dissipation according to claim 5, characterized in that: The threads provided on the second threaded rod (58) and the first threaded rod (57) are both designed with a non-constant pitch, so that when the second threaded rod (58) and the first threaded rod (57) rotate one circle, the sliding blocks (53) located at different pitches move different distances.

7. A lithium battery with rapid heat dissipation according to claim 6, characterized in that: The pitch of the threads provided on the second threaded rod (58) and the first threaded rod (57) is the same as the distance between the two ends of the first guide groove (63) and the second guide groove (64) at corresponding positions in the vertical direction; when the second threaded rod (58) and the first threaded rod (57) rotate one circle, the guide rod (66) moves from one end of any one of the first guide groove (63) and the second guide groove (64) to the other end.

8. A lithium battery with rapid heat dissipation according to claim 5, characterized in that: The integrated lithium battery body (10) comprises a battery installation cavity (101) for placing a lithium battery cell (20), a radiator installation cavity (102) arranged below the battery installation cavity (101), and an air intake cavity (103) arranged below the radiator installation cavity (102); a radiator (104) is installed at the radiator installation cavity (102); and an air volume adjustment mechanism (70) corresponding to the air outlet position of the radiator (104) is arranged at the bottom opening of the battery installation cavity (101); the air volume adjustment mechanism (70) comprises a plurality of movable gate plates (74); and the plurality of gate plates (74) can be combined into a circular ring for changing the diameter of the air outlet.

9. A lithium battery with rapid heat dissipation according to claim 8, characterized in that: The air volume adjustment mechanism (70) further comprises a mounting ring (71) arranged on the bottom opening of the battery mounting cavity (101) and a rotating disk (75) rotatably arranged on the mounting ring (71); The surface of the mounting ring (71) is provided with straight grooves (72) having the same number as the gate plates (74), and a slide bar (73) is embedded in the straight groove (72) and moves horizontally along the length direction of the straight groove (72), and the gate plates (74) are mounted on the slide bar (73); The surface of the rotating disk (75) is provided with a third guide groove (76), and the slide bars (73) all penetrate through the third guide groove (76) and abut against the third guide groove (76). When the rotating disk (75) rotates, the slide bars (73) are pushed by the third guide groove (76) to slide in the straight groove (72).

10. A lithium battery with rapid heat dissipation according to claim 9, characterized in that: The top of the first threaded rod (57) is connected to a motor (30) installed in the integrated lithium battery body (10), the bottom of the second threaded rod (58) is sleeved with a transmission wheel (81), and the surfaces of the rotating disk (75) and the transmission wheel (81) are sleeved with a transmission belt (82) for transmission. When the lithium battery cells (20) change from a concentrated state to a dispersed state, the gate plate (74) moves and combines to reduce the air outlet to increase the flow rate.

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