A new energy vehicle lithium battery mounting device and a use method thereof

Abstract

The application discloses a new energy vehicle lithium battery mounting device and a use method thereof and belongs to the technical field of lithium battery mounting devices. The new energy vehicle lithium battery mounting device comprises a vehicle body connecting plate, a mounting box mounted on the vehicle body connecting plate and a battery pack arranged in the mounting box. The battery pack is flexibly connected in the mounting box and then connected on the vehicle body connecting plate, so that the battery pack slightly shakes in the mounting box when the vehicle bounces, the hard collision damage of the battery pack caused by the bouncing is reduced, and the sliding plate is driven to reciprocatingly slide up and down in the sealing cylinder when the battery pack shakes. The gas in the storage cavity is drawn through the air inlet pipe and discharged from the air outlet pipe into the cylinder barrel, the filling air bag, the first side buffer air bag and the second side buffer air bag, so as to tightly press the nut, prevent loosening and improve the protection performance of the battery pack, thereby stably mounting the battery pack on the vehicle, avoiding falling off and not affecting the operation of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of lithium battery installation equipment technology, and in particular to a lithium battery installation device for new energy vehicles and its usage method. Background Technology

[0002] Lithium batteries, as an environmentally friendly and high-energy-density energy product, have been applied in various fields of life, including consumer electronics and electric vehicles. As the core component of lithium batteries, the quality of electrode installation directly affects the overall quality of lithium batteries.

[0003] Currently, lithium batteries are mostly installed on the vehicle body using bolts and nuts. Bolts and nuts are convenient for both installation and removal. However, during long-term vehicle operation, the shaking of the vehicle body can cause the nuts to loosen, resulting in the lithium battery becoming loose. In severe cases, the lithium battery may even detach from the vehicle body, seriously affecting the vehicle's operation. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that during long-term vehicle operation, body shaking can cause nuts to loosen, leading to loosening of the lithium battery, and in severe cases, the lithium battery may detach from the vehicle body, seriously affecting vehicle operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lithium battery installation device for new energy vehicles includes a vehicle body connecting plate, an installation box mounted on the vehicle body connecting plate, and a battery pack disposed within the installation box. The installation box has symmetrically interconnected storage cavities at its lower end, and a communicating hole communicating with the storage cavities is formed on the inner wall of the lower end of the installation box. The device also includes a sealing cylinder fixedly connected to the installation box, a sliding plate slidably connected inside the sealing cylinder, a sliding rod fixedly connected to one side of the sliding plate, a first spring fixedly connected to the sliding rod, and a connecting rod fixedly connected to the first spring. A sliding hole is formed at the bottom of the installation box, allowing the connecting rod to slide. The battery pack is connected to the bottom of a connecting rod at one end, with the bottom of the battery pack fixedly connected to the sliding hole. An air inlet pipe and an air outlet pipe are fixedly connected to the sealing cylinder, with the air inlet pipe fixedly connected to the storage cavity. Mounting plates are symmetrically fixedly connected to both sides of the mounting box, and bolts are fixedly connected to the vehicle body connecting plate. The mounting plates are connected to the bolts by a nut threaded onto them. A cylinder is set on the mounting plate, and a retaining rod is slidably connected in the cylinder. One end of the retaining rod abuts against one side of the nut, and the end of the air outlet pipe away from the sealing cylinder is connected to the end of the cylinder.

[0007] Preferably, a gathering frame is fixedly connected to the mounting plate, one end of the cylinder is fixedly connected to one side of the gathering frame, one end of the clamping rod is slidably connected to the gathering frame, a first overflow pipe is fixedly connected to the end of the cylinder, the end of the first overflow pipe away from the cylinder is fixedly connected to the air outlet pipe, a tension spring is fixedly connected to one end of the clamping rod, the end of the tension spring away from the clamping rod is fixedly connected to the bottom wall of the cylinder end, and a sixth overflow valve is provided on the first overflow pipe.

[0008] To further improve the connection stability between the nut and the bolt, an air blowing pipe corresponding to the gathering frame is fixedly connected to the air outlet pipe, and a first overflow valve is installed on the air blowing pipe, with the end of the air blowing pipe facing the bolt and the nut.

[0009] To ensure a tight fit between the nut and the mounting plate, a filling airbag is fixedly connected to the mounting plate. The filling airbag is located between the mounting plate and the vehicle body connecting plate. A first inflation pipe, which is fixedly connected to the filling airbag, is fixedly connected to the air outlet pipe. A third overflow valve is installed on the first inflation pipe.

[0010] To further enhance the protection of the battery pack, a first side buffer airbag is fixedly connected to both inner walls of the mounting box. The first side buffer airbag is located between the mounting box and the battery pack. The filling airbag and the first side buffer airbag are connected by a second inflation tube, and a fourth overflow valve is installed on the second inflation tube.

[0011] To further enhance the protection of the battery pack, a second side buffer airbag is fixedly connected to both inner walls of the mounting box. The second side buffer airbag is located between the mounting box and the battery pack. A second overflow pipe is fixedly connected between the second side buffer airbag and the first side buffer airbag, and a second overflow valve is installed on the second overflow pipe.

[0012] To further improve the heat dissipation of the battery pack, the first side buffer airbag and the second side buffer airbag are respectively fixedly connected to a first connector and a second connector on the side near the battery pack. The first connector and the second connector are respectively fixedly connected to a first contact plate and a second contact plate, and the first contact plate and the second contact plate are in contact with the battery pack.

[0013] To improve the heat dissipation of the battery pack, a blowing nozzle is fixedly connected to the side of the second side buffer airbag near the battery pack. A fifth overflow valve is installed on the blowing nozzle, and the end of the blowing nozzle is tilted downward.

[0014] To prevent the battery pack from shaking significantly, a guide rod is slidably connected to the vehicle body connecting plate. A second spring is fixedly connected to one end of the guide rod, and the end of the second spring away from the guide rod is fixedly connected to the vehicle body connecting plate. A lower pressure plate is fixedly connected to the end of the guide rod, and the lower pressure plate is in contact with the upper surface of the battery pack.

[0015] A method for using a lithium battery installation device for new energy vehicles mainly includes the following steps:

[0016] S1: Install the mounting plate onto the vehicle body connecting plate using the nut;

[0017] S2: The bumps generated by the vehicle's movement drive the slide plate to slide up and down repeatedly in the sealed cylinder, so that the air intake pipe draws the gas from the storage chamber into the sealed cylinder and discharges it from the air outlet pipe. The gas discharged from the air outlet pipe fills the cylinder and pushes one end of the clamping rod to press against the side of the nut.

[0018] S3: Excess gas in the outlet pipe passes through the third overflow valve on the first inflation pipe and fills the air bladder with gas, so that the mounting plate and the nut are tightly attached.

[0019] S4: The gas in the outlet pipe then breaks through the first overflow valve on the air blowing pipe, so that the heat generated by the battery pack is blown onto the bolts and nuts by the inlet pipe, so that the bolts and nuts are continuously heated.

[0020] Compared with the prior art, the present invention provides a lithium battery installation device and its usage method for new energy vehicles, which has the following beneficial effects: the parts not mentioned in the device are the same as or can be implemented by the prior art. The present invention connects the battery pack flexibly in the installation box and then to the vehicle body connecting plate. When the vehicle is bumpy, the battery pack shakes slightly in the installation box, reducing the hard impact damage to the battery pack caused by the bumps. When the battery pack shakes, it drives the sliding plate to slide up and down in the sealed cylinder. The gas in the storage cavity is drawn through the air inlet pipe and discharged from the air outlet pipe. The gas enters the cylinder, the filling air bag, the first side buffer air bag and the second side buffer air bag to tighten the nuts, prevent loosening and improve the protection performance of the battery pack. Thus, the battery pack is stably installed on the vehicle, avoiding falling off and not affecting the operation of the vehicle. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a lithium battery installation device for new energy vehicles proposed in this invention. Figure 1 ;

[0022] Figure 2 This invention proposes a lithium battery installation device for new energy vehicles. Figure 1 A schematic diagram of the structure of A in the middle;

[0023] Figure 3 This invention proposes a lithium battery installation device for new energy vehicles. Figure 1 A schematic diagram of the structure of B in the middle;

[0024] Figure 4 This is a three-dimensional structural diagram of a lithium battery installation device for new energy vehicles proposed in this invention. Figure 2 ;

[0025] Figure 5 This is a three-dimensional structural diagram of a lithium battery installation device for new energy vehicles proposed in this invention. Figure 3 ;

[0026] Figure 6 This is a three-dimensional structural diagram of a lithium battery installation device for new energy vehicles proposed in this invention. Figure 4 ;

[0027] Figure 7 This is a three-dimensional structural diagram of a lithium battery installation device for new energy vehicles proposed in this invention. Figure 5 ;

[0028] Figure 8 This is a three-dimensional structural diagram of a lithium battery installation device for new energy vehicles proposed in this invention. Figure 6 ;

[0029] Figure 9 This is a top view schematic diagram of the storage cavity structure of a lithium battery installation device for new energy vehicles proposed in this invention.

[0030] In the diagram: 1. Mounting box; 11. Storage cavity; 111. Connecting hole; 12. Sealing cylinder; 120. Slide plate; 121. Slide rod; 122. First spring; 123. Connecting rod; 124. Air inlet pipe; 125. Air outlet pipe; 126. Air blowing pipe; 1261. First overflow valve; 127. Slide hole; 13. Connecting pipe; 131. Solenoid valve; 14. Mounting plate; 141. Bolt; 142. Nut; 143. Gathering frame; 144. Filling airbag; 1442. First inflation pipe; 145. Second 15. Inflation hose; 16. Cylinder barrel; 17. Clamping rod; 18. Tension spring; 19. First overflow pipe; 10. Body connecting plate; 11. Guide rod; 12. Second spring; 13. Lower pressure plate; 14. First side buffer airbag; 15. First connector; 16. First contact plate; 17. Second side buffer airbag; 18. Second connector; 19. Second contact plate; 10. Second overflow pipe; 11. Second overflow valve; 12. Air nozzle; 13. Battery pack; 14. Temperature sensor. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Example 1:

[0034] Reference Figure 1-9A lithium battery installation device for new energy vehicles includes a vehicle body connecting plate 16, an installation box 1 mounted on the vehicle body connecting plate 16, and a battery pack 2 disposed within the installation box 1. The lower end of the installation box 1 has symmetrically interconnected storage cavities 11, and the inner wall of the lower end of the installation box 1 has a connecting hole 111 communicating with the storage cavities 11. The device also includes a sealing cylinder 12 fixedly connected to the installation box 1, a sliding plate 120 slidably connected within the sealing cylinder 12, a sliding rod 121 fixedly connected to one side of the sliding plate 120, and a first spring fixedly connected to the sliding rod 121. 122, A connecting rod 123 is fixedly connected to the first spring 122. A sliding hole 127 is provided at the bottom of the mounting box 1, and the connecting rod 123 is slidably connected in the sliding hole 127. The bottom of the battery pack 2 is fixedly connected to one end of the connecting rod 123. An air inlet pipe 124 and an air outlet pipe 125 are fixedly connected to the sealing cylinder 12, respectively. The air inlet pipe 124 is fixedly connected to the storage cavity 11. Mounting plates 14 are symmetrically fixedly connected to both sides of the mounting box 1. Bolts 141 are fixedly connected to the body connecting plate 16. The mounting plates 14 are threadedly connected to the body by nuts 142. The mounting plate 14 is connected to the vehicle body connecting plate 16 via bolt 141; a cylinder barrel 15 is mounted on the mounting plate 14, and a retaining rod 150 is slidably connected in the cylinder barrel 15. One end of the retaining rod 150 abuts against one side of the nut 142, and the end of the exhaust pipe 125 away from the sealing cylinder 12 is connected to the end of the cylinder barrel 15; a gathering frame 143 is fixedly connected to the mounting plate 14, one end of the cylinder barrel 15 is fixedly connected to one side of the gathering frame 143, one end of the retaining rod 150 is slidably connected to the gathering frame 143, and the end of the cylinder barrel 15 is fixedly connected to a first The first overflow pipe 152 has one end fixedly connected to the air outlet pipe 125 away from the cylinder barrel 15. One end of the clamping rod 150 is fixedly connected to the tension spring 151. The end of the tension spring 151 away from the clamping rod 150 is fixedly connected to the bottom wall of the cylinder barrel 15. The first overflow pipe 152 is provided with a sixth overflow valve. The air outlet pipe 125 is fixedly connected to the air blowing pipe 126 corresponding to the gathering frame 143. The air blowing pipe 126 is equipped with a first overflow valve 1261. The end of the air blowing pipe 126 faces the bolt 141 and the nut 142.

[0035] When using this device, the mounting plate 14 on the mounting box 1 is attached to the body connecting plate 16, and the bolts 141 on the body connecting plate 16 are inserted into the mounting holes of the corresponding bolts 141 on the mounting plate 14. Then, the nuts 142 are screwed onto the bolts 141, so that the nuts 142 are tightly attached to the mounting plate 14, thereby making the mounting box 1 and the body connecting plate 16 tightly connected to the vehicle.

[0036] Subsequently, during vehicle operation, the road surface was bumpy, and the battery pack 2 swayed in the mounting box 1. The connecting rod 123, which is fixedly connected to the bottom of the battery pack 2, drives the sliding rod 121 to move up and down in the sealed cylinder 12, which in turn drives the sliding plate 120 to slide up and down in the sealed cylinder 12. At the same time, the first spring 122 flexibly connects the battery pack 2 in the mounting box 1, which can effectively reduce the hard impact on the battery pack 2 during bumps and improve the protection of the battery pack 2.

[0037] When the slide plate 120 slides up and down, the gas in the storage chamber 11 is drawn through the air inlet pipe 124 and enters the sealing cylinder 12. When the slide plate 120 slides down, the gas is discharged from the air outlet pipe 125. The gas in the air outlet pipe 125 first breaks through the sixth overflow valve on the first overflow pipe 152 and enters the cylinder 15, pushing the clamping rod 150 to slide closer to the nut 142, so that one end of the clamping rod 150 abuts against the side of the nut 142, thereby preventing the nut 142 from rotating and loosening under shaking.

[0038] Meanwhile, when the gas in the storage chamber 11 is drawn out by the air inlet pipe 124, the connecting hole 111 allows the gas in the mounting box 1 to enter into the storage chamber 11, so that the heat emitted by the battery pack 2 when it is working is drawn into the storage chamber 11, further reducing the accumulation of heat in the mounting box 1.

[0039] Meanwhile, the inner walls of the storage cavity 11 are coated with a heat insulation layer, which can effectively prevent the heat in the storage cavity 11 from being conducted into the mounting box 1, further improving the cooling effect on the battery pack 2.

[0040] At the same time, the gas in the outlet pipe 125 breaks through the first overflow valve 1261 on the blowing pipe 126, and the gas drawn into the sealing cylinder 12 by the inlet pipe 124 is blown from the blowing pipe 126 to the bolt 141 and the nut 142. Since the inlet pipe 124 will continuously draw gas from the storage chamber 11, the gas contains heat. The gas containing heat is continuously blown onto the bolt 141 and the nut 142, which heats the bolt 141 and the nut 142 and causes them to expand due to heat. This makes the fit between the nut 142 and the bolt 141 tighter, which can prevent the nut 142 and the bolt 141 from contracting due to cold weather and the nut 142 from loosening, thereby improving the stability after installation.

[0041] It should be understood that both the intake pipe 124 and the exhaust pipe 125 are equipped with one-way valves.

[0042] Example 2:

[0043] Reference Figure 3The embodiment is basically the same as that in Example 1, but further: a filling airbag 144 is fixedly connected to the mounting plate 14, the filling airbag 144 is located between the mounting plate 14 and the vehicle body connecting plate 16, a first inflation pipe 1442 fixedly connected to the air outlet pipe 125 and fixedly communicating with the filling airbag 144, and a third overflow valve is installed on the first inflation pipe 1442.

[0044] Simultaneously, excess gas in the vent pipe 125 breaks through the third overflow valve on the first inflation pipe 1442, allowing gas to be injected into the inflatable airbag 144 through the first inflation pipe 1442. This causes the inflatable airbag 144 to inflate and fill the space between the mounting plate 14 and the vehicle body connecting plate 16, making the mounting plate 14 and the nut 142 fit more tightly and preventing gaps between them. This also prevents relative displacement between the mounting plate 14 and the vehicle body connecting plate 16, and further tightens the mounting plate 14 against the nut 142 through the inflatable airbag 144, thus preventing the nut 142 from loosening.

[0045] Example 3:

[0046] Reference Figure 4 Similar to Embodiment 2, but further: a first side buffer airbag 17 is fixedly connected to both inner walls of the mounting box 1. The first side buffer airbag 17 is located between the mounting box 1 and the battery pack 2. The filling airbag 144 and the first side buffer airbag 17 are connected through a second inflation tube 145. A fourth overflow valve is installed on the second inflation tube 145.

[0047] After the airbag 144 is filled with gas, the excess gas breaks through the fourth overflow valve again, allowing the gas in the air outlet pipe 125 to re-enter the first side buffer airbag 17, replenishing the first side buffer airbag 17 with gas. After the first side buffer airbag 17 is filled with gas, it expands and fills the space between the mounting box 1 and the battery pack 2, improving the flexible protection of the battery pack 2.

[0048] Example 4:

[0049] Reference Figure 6 Similar to Embodiment 3, but further: a second side buffer airbag 18 is fixedly connected to both inner walls of the mounting box 1. The second side buffer airbag 18 is located between the mounting box 1 and the battery pack 2. A second overflow pipe 19 is fixedly connected between the second side buffer airbag 18 and the first side buffer airbag 17. A second overflow valve 191 is installed on the second overflow pipe 19.

[0050] When the air pressure inside the first side buffer airbag 17 breaks through the second overflow valve 191 again, the gas discharged from the sealing cylinder 12 is sequentially injected into the second side buffer airbag 18 to replenish the second side buffer airbag 18 with gas, so that the second side buffer airbag 18 fills the space between the battery pack 2 and the mounting box 1, thereby improving the protection effect of the battery pack 2 inside the mounting box 1 and preventing the battery pack 2 from being subjected to hard impacts during bumps.

[0051] Example 5:

[0052] Reference Figure 5 and Figure 6 Similar to Embodiment 4, but further: the first side buffer airbag 17 and the second side buffer airbag 18 are respectively fixedly connected to the first connector 171 and the second connector 181 on the side near the battery pack 2. The first connector 171 and the second connector 181 are respectively fixedly connected to the first contact plate 172 and the second contact plate 182. The first contact plate 172 and the second contact plate 182 are both in contact with the battery pack 2.

[0053] After the first side buffer airbag 17 and the second side buffer airbag 18 are both filled with gas, the first contact plate 172 and the second contact plate 182 are respectively attached to the four sides of the battery pack 2, making multi-point contact with the battery pack 2. This leaves a certain gap for heat dissipation between the battery pack 2 and the first side buffer airbag 17 and the second side buffer airbag 18, thus preventing heat accumulation in the battery pack 2.

[0054] Example 6:

[0055] Reference Figure 6 Similar to Example 5, but further: the second side buffer airbag 18 is fixedly connected to the side of the battery pack 2 with an air nozzle 192, a fifth overflow valve is installed on the air nozzle 192, and the end of the air nozzle 192 is tilted downward.

[0056] Meanwhile, when the gas pressure in the second side buffer airbag 18 breaks through the fifth overflow valve, the gas continuously discharged into the air outlet pipe 125 by the sealing cylinder 12 during vehicle bumps will be discharged through the air blowing nozzle 192. The air blowing nozzle 192 blows the gas toward the bottom of the mounting box 1 and into the gap between the battery pack 2 and the mounting box 1, thereby accelerating the flow of gas in the mounting box 1 and improving the heat dissipation effect on the battery pack 2.

[0057] Example 7:

[0058] Reference Figure 4Similar to Embodiment 6, but further: a guide rod 161 is slidably connected to the body connecting plate 16, a second spring 162 is fixedly connected to one end of the guide rod 161, the end of the second spring 162 away from the guide rod 161 is fixedly connected to the body connecting plate 16, and a lower pressure plate 163 is fixedly connected to the end of the guide rod 161, and the lower pressure plate 163 is in contact with the upper surface of the battery pack 2;

[0059] When the mounting box 1 is installed on the vehicle body connecting plate 16, the pressure plate 163 contacts the upper surface of the battery pack 2, which exerts a certain downward pressure on the battery pack 2, effectively reducing the amplitude of the battery pack 2's up-and-down swaying, further preventing the battery pack 2 from swaying too much. At the same time, the second spring 162 reduces the hard impact of the battery pack 2 during bumps, improving the protection of the battery pack 2.

[0060] Example 8:

[0061] Reference Figure 1 and Figure 4 Similar to Example 7, but with a further improvement: a temperature sensor 3 is installed on the battery pack 2 and is electrically connected to the battery pack 2; a connecting pipe 13 connected to the storage cavity 11 is fixedly connected to both sides of the mounting box 1, and a solenoid valve 131 is installed on the connecting pipe 13; when the temperature sensor 3 detects that the battery pack 2 is too hot, the solenoid valve 131 opens, allowing the two sides of the storage cavity 11 to be connected to the outside through the connecting pipe 13; during vehicle operation, outside air enters the storage cavity 11 from one end of the connecting pipe 13 and exits from the other end of the connecting pipe 13, accelerating the airflow in the storage cavity 11, quickly dissipating the heat drawn from the mounting box 1 by the air intake pipe 124; at the same time, when outside gas flows through the storage cavity 11, a negative pressure is formed at the connecting hole 111, drawing gas from the mounting box 1 into the storage cavity 11, thereby accelerating the discharge of heat emitted by the battery pack 2.

[0062] Example 9:

[0063] Reference Figure 1-9 A method for using a lithium battery installation device for new energy vehicles mainly includes the following steps:

[0064] S1: Install the mounting plate 14 onto the vehicle body connecting plate 16 using the nut 142;

[0065] S2: The bumps generated by the vehicle's movement drive the slide plate 120 to slide back and forth in the sealed cylinder 12, so that the air intake pipe 124 draws the gas from the storage chamber 11 into the sealed cylinder 12 and discharges it from the air outlet pipe 125. The gas discharged from the air outlet pipe 125 fills the cylinder 15, pushing one end of the clamping rod 150 to press against the side of the nut 142.

[0066] S3: Excess gas in the vent pipe 125 passes through the third overflow valve on the first inflation pipe 1442 and fills the air bladder 144 with gas from the vent pipe 125, so that the mounting plate 14 and the nut 142 are tightly attached.

[0067] S4: The gas in the outlet pipe 125 then breaks through the first overflow valve 1261 on the air blowing pipe 126, so that the heat generated by the intake pipe 124 is drawn from the battery pack 2 and blown onto the bolt 141 and nut 142, causing the bolt 141 and nut 142 to expand under continuous heating.

[0068] This invention flexibly connects the battery pack 2 to the mounting box 1 and then to the vehicle body connecting plate 16. When the vehicle is bumpy, the battery pack 2 moves slightly within the mounting box 1, reducing the impact damage to the battery pack 2 from the bumps. When the battery pack 2 moves, it drives the sliding plate 120 to slide back and forth in the sealed cylinder 12. The gas is drawn from the storage chamber 11 through the air intake pipe 124 and discharged from the air outlet pipe 125. The gas enters the cylinder 15, the filling airbag 144, the first side buffer airbag 17 and the second side buffer airbag 18 to tighten the nut 142, prevent loosening and improve the protection performance of the battery pack 2. This ensures that the battery pack 2 is stably installed on the vehicle, preventing it from falling off and not affecting the operation of the vehicle.

[0069] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lithium battery installation device for a new energy vehicle, comprising a vehicle body connecting plate (16), an installation box (1) mounted on the vehicle body connecting plate (16), and a battery pack (2) disposed within the installation box (1), characterized in that, The mounting box (1) has symmetrically arranged storage cavities (11) at its lower end, and the inner wall of the lower end of the mounting box (1) has a connecting hole (111) that communicates with the storage cavity (11). It also includes: A sealing cylinder (12) is fixedly connected to the mounting box (1). A sliding plate (120) is slidably connected inside the sealing cylinder (12). A sliding rod (121) is fixedly connected to one side of the sliding plate (120). A first spring (122) is fixedly connected to the sliding rod (121). A connecting rod (123) is fixedly connected to the first spring (122). A sliding hole (127) is opened at the bottom of the mounting box (1). The connecting rod (123) is slidably connected in the sliding hole (127). The bottom of the battery pack (2) is fixedly connected to one end of the connecting rod (123). An air inlet pipe (124) and an air outlet pipe (125) are fixedly connected to the sealing cylinder (12), respectively, and the air inlet pipe (124) is fixedly connected to the storage cavity (11); Mounting plates (14) are symmetrically fixedly connected to both sides of the mounting box (1). Bolts (141) are fixedly connected to the body connecting plate (16). The mounting plate (14) is connected to the bolts (141) by nuts (142) threadedly connected to the mounting plate (14) and connected to the body connecting plate (16). A cylinder barrel (15) is mounted on the mounting plate (14). A retaining rod (150) is slidably connected in the cylinder barrel (15). One end of the retaining rod (150) abuts against one side of the nut (142). The end of the air outlet pipe (125) away from the sealing cylinder (12) is connected to the end of the cylinder barrel (15).

2. The lithium battery installation equipment for new energy vehicles according to claim 1, characterized in that, A gathering frame (143) is fixedly connected to the mounting plate (14). One end of the cylinder (15) is fixedly connected to one side of the gathering frame (143). One end of the clamping rod (150) is slidably connected to the gathering frame (143). The end of the cylinder (15) is fixedly connected to a first overflow pipe (152). The end of the first overflow pipe (152) away from the cylinder (15) is fixedly connected to the air outlet pipe (125). One end of the clamping rod (150) is fixedly connected to a tension spring (151). The end of the tension spring (151) away from the clamping rod (150) is fixedly connected to the bottom wall of the end of the cylinder (15). A sixth overflow valve is provided on the first overflow pipe (152).

3. The lithium battery installation equipment for new energy vehicles according to claim 2, characterized in that, An air blowing pipe (126) corresponding to the gathering frame (143) is fixedly connected to the air outlet pipe (125). A first overflow valve (1261) is installed on the air blowing pipe (126). The end of the air blowing pipe (126) faces the bolt (141) and the nut (142).

4. The lithium battery installation equipment for new energy vehicles according to claim 3, characterized in that, An airbag (144) is fixedly connected to the mounting plate (14). The airbag (144) is located between the mounting plate (14) and the vehicle body connecting plate (16). A first inflation pipe (1442) that is fixedly connected to the air outlet pipe (125) and is in fixed communication with the airbag (144) is fixedly connected to the first inflation pipe (1442). A third overflow valve is installed on the first inflation pipe (1442).

5. The lithium battery installation equipment for new energy vehicles according to claim 4, characterized in that, The first side buffer airbag (17) is fixedly connected to both inner walls of the mounting box (1). The first side buffer airbag (17) is located between the mounting box (1) and the battery pack (2). The filling airbag (144) and the first side buffer airbag (17) are connected through a second inflation tube (145). A fourth overflow valve is installed on the second inflation tube (145).

6. The lithium battery installation equipment for new energy vehicles according to claim 5, characterized in that, The second side buffer airbag (18) is fixedly connected to the inner walls on both sides of the mounting box (1). The second side buffer airbag (18) is located between the mounting box (1) and the battery pack (2). The second side buffer airbag (18) and the first side buffer airbag (17) are fixedly connected by a second overflow pipe (19). A second overflow valve (191) is installed on the second overflow pipe (19).

7. The lithium battery installation equipment for new energy vehicles according to claim 6, characterized in that, The first side buffer airbag (17) and the second side buffer airbag (18) are respectively fixedly connected to the first connector (171) and the second connector (181) on the side near the battery pack (2). The first connector (171) and the second connector (181) are respectively fixedly connected to the first contact plate (172) and the second contact plate (182). The first contact plate (172) and the second contact plate (182) are both in contact with the battery pack (2).

8. The lithium battery installation equipment for new energy vehicles according to claim 7, characterized in that, The second side buffer airbag (18) is fixedly connected to an air nozzle (192) on the side near the battery pack (2). A fifth overflow valve is installed on the air nozzle (192), and the end of the air nozzle (192) is tilted downward.

9. A lithium battery installation device for new energy vehicles according to claim 8, characterized in that, A guide rod (161) is slidably connected to the body connecting plate (16). A second spring (162) is fixedly connected to one end of the guide rod (161). The end of the second spring (162) away from the guide rod (161) is fixedly connected to the body connecting plate (16). A lower pressure plate (163) is fixedly connected to the end of the guide rod (161). The lower pressure plate (163) is in contact with the upper surface of the battery pack (2).

10. A method of using a lithium battery installation device for new energy vehicles, comprising the lithium battery installation device for new energy vehicles as described in claim 8, characterized in that, The main steps include: S1: Install the mounting plate (14) onto the body connecting plate (16) using the nut (142); S2: The bumps generated by the vehicle's movement drive the sliding plate (120) to slide back and forth in the sealed cylinder (12), so that the air intake pipe (124) draws the gas in the storage chamber (11) into the sealed cylinder (12) and discharges it from the air outlet pipe (125). The gas discharged from the air outlet pipe (125) fills the cylinder (15), pushing one end of the clamping rod (150) to press against the side of the nut (142). S3: Excess gas in the vent pipe (125) is injected into the filling air bag (144) by passing through the third overflow valve on the first inflation pipe (1442), so that the mounting plate (14) and the nut (142) are tightly attached. S4: The gas in the outlet pipe (125) then breaks through the first overflow valve (1261) on the air blowing pipe (126), so that the heat generated by the intake pipe (124) when extracting the battery pack (2) is blown onto the bolt (141) and nut (142), so that the bolt (141) and nut (142) are continuously heated.

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