A heat dissipation protection device for new energy power storage battery

Abstract

The application belongs to the technical field of new energy automobile accessories, in particular to a heat dissipation protection device for new energy power storage batteries, which comprises a protection box, a box door is arranged on one side of the protection box, and ventilation openings are arranged on both sides of the protection box; further comprising a storage battery positioning assembly; the storage battery positioning assembly comprises two positioning plates, the two positioning plates are slidingly arranged on both sides of the bottom of the inner cavity of the protection box; further comprising an adjustable heat dissipation and fire extinguishing integrated assembly; the adjustable heat dissipation and fire extinguishing integrated assembly comprises a cold air machine and a dry powder tank which are fixedly connected to the top of the outer wall of the protection box, and the air outlet end of the cold air machine is communicated with an air outlet pipe. The adjustable heat dissipation and fire extinguishing integrated assembly is used to monitor the temperature inside the protection box in real time by using a temperature sensor, when the temperature exceeds the preset value, the cold air blows to the storage battery along the inner wall of the soft cover after passing through the air outlet pipe, the branch pipe, the hose and the hard pipe, so as to air-cool and dissipate heat for the storage battery.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle parts technology, specifically a heat dissipation protection device for new energy power batteries. Background Technology

[0002] New energy power batteries are rechargeable batteries used to provide driving energy for new energy vehicles. During use, the high current charging and discharging can cause the internal temperature of the battery to rise, exceeding its normal operating temperature, and even leading to battery rupture, leakage, fire, and explosion, thus affecting the battery's reliability and safety. Therefore, the battery management system of new energy vehicles is often equipped with a dedicated protective device for battery heat dissipation.

[0003] Patent CN210224225U discloses a heat dissipation protection device for a new energy electric vehicle battery. The device includes a base, a fixing plate fixed to the top of the base, a square hole in the center of the fixing plate, and a first cooling fan installed within the square hole. Several block-shaped protrusions are evenly fixed on an arc-shaped shock-absorbing plate. Several grooves matching the block-shaped protrusions are fixed on both sides of the bottom of the mounting plate. A battery body is fixedly mounted on the mounting plate. Heat-conducting shells are tightly attached to both sides of the battery body. A heat-conducting rod is fixed to the center of the side of the heat-conducting shell away from the battery body. First connecting rods are symmetrically hinged to the upper and lower ends of the heat-conducting shell. Vertical baffles are fixed around the base, with sliding grooves matching the sliders. The heat-conducting rod extends through the fixing sleeve to the outside of the vertical baffles and connects to a heat dissipation component. This patent protects the battery by setting multiple heat dissipation and shock-absorbing structures, ensuring the normal operation of the battery and extending its service life.

[0004] However, the above technical solutions still have the following shortcomings in practical applications:

[0005] First, clamp and fix the battery to the base. Then, align the ventilation pipe of the air cooler with the battery. When the battery overheats, cool air is blown onto the battery through the ventilation pipe, thereby cooling the battery.

[0006] However, because the direction of cold air flow is fixed, it only affects a fixed area, making it difficult to evenly dissipate the heat emitted by the battery, thus affecting the battery's heat dissipation effect. Furthermore, if a battery catches fire due to overheating and is not detected and extinguished in time, the fire can spread rapidly and even ignite the entire vehicle, posing a significant safety hazard. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a heat dissipation protection device for new energy power batteries.

[0008] The technical solution adopted by the present invention to solve its technical problem is: a heat dissipation protection device for a new energy power battery, including a protective box, a door on one side of the protective box, and ventilation openings on both sides of the protective box;

[0009] It also includes battery positioning components;

[0010] The battery positioning assembly includes two positioning plates, which are slidably disposed on both sides of the bottom of the inner cavity of the protective box;

[0011] It also includes an adjustable heat dissipation and fire suppression integrated component;

[0012] The adjustable heat dissipation and fire extinguishing integrated component includes a cooler and a dry powder tank fixedly connected to the top of the outer wall of the protective box. The air outlet of the cooler is connected to an air outlet pipe, and the powder outlet of the dry powder tank is connected to a powder outlet pipe. A valve is installed at one end of the powder outlet pipe. A branch pipe is fixedly connected to one side of the inner wall of the protective box. The outlet of the air outlet pipe and the powder outlet pipe are respectively connected to the two sides of the branch pipe. A flexible hose is connected to one side of the lower end of the branch pipe. A rigid pipe is connected to one end of the flexible hose. A fixing plate is fixedly inserted through the lower end of the rigid pipe. A soft cover is fixedly connected to the lower end of the fixing plate.

[0013] Preferably, a bidirectional threaded rod is rotatably provided on one side of the bottom of the inner cavity of the protective box, and the two sides of the bidirectional threaded rod are respectively threadedly connected to two positioning plates.

[0014] Preferably, a lifting plate is fixedly sleeved on one side of the outer wall of the rigid pipe, and one end of the lifting plate is slidably connected to the inner wall of the protective box.

[0015] Preferably, an electric actuator is fixedly connected to one side of the inner wall of the protective box, and the piston end of the electric actuator is fixedly connected to one end of the lifting plate.

[0016] Preferably, the upper end of the fixed plate is rotatably provided with multiple adjusting rods, one end of each adjusting rod is fixedly connected to a connecting nail, and the end of each connecting nail is fixedly connected to one side of the soft cover. One end of each adjusting rod is rotatably provided with a connecting rod, and an adjusting ring is slidably sleeved on the outer wall of the rigid tube. One end of the connecting rod is rotatably provided on the adjusting ring.

[0017] Preferably, an electric actuator two is fixedly connected to one side of the upper surface of the fixed plate, and the piston end of the electric actuator two is fixedly connected to one side of the adjusting ring.

[0018] Preferably, a valve is provided at one end of both the air outlet pipe and the powder outlet pipe, and a mounting base is provided on one side of the inner wall of the protective box, on which a temperature sensor and a smoke sensor are provided.

[0019] Preferably, a filter screen is provided at the vent.

[0020] Preferably, it also includes a dry powder anti-adhesion component;

[0021] The dry powder anti-adhesion component includes a rotating rod rotatably mounted on one side of the adjusting rod, and both ends of the rotating rod are fixedly connected to striking blocks.

[0022] Preferably, a motor is fixedly connected to one side of the adjusting rod, and the output end of the motor is fixedly connected to the middle of the rotating rod.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. The heat dissipation protection device for a new energy power battery described in this invention utilizes an adjustable integrated heat dissipation and fire extinguishing component. A temperature sensor monitors the internal temperature of the protection box in real time. When the temperature exceeds a preset value, cold air is blown towards the battery along the inner wall of the soft cover after passing through the outlet pipe, branch pipes, flexible hoses, and rigid pipes, thereby providing air cooling for the battery. Simultaneously, multiple connecting rods drive multiple adjusting rods to rotate. These adjusting rods, through connecting pins, pull the edge of the soft cover, causing deformation and adjusting its size. This allows the air outlet range to change in real time, ensuring that cold air is evenly blown onto the battery surface, thus improving the heat dissipation effect on the battery.

[0025] When a battery catches fire unexpectedly, the smoke sensor detects smoke. At this time, valve two on the powder outlet pipe opens, and simultaneously valve one opens. The dry powder in the dry powder canister is discharged through the powder outlet pipe under air pressure and sprayed onto the battery surface along the inner wall of the soft cover. Since the size of the soft cover is constantly changing during the dry powder spraying process, the dry powder can be evenly attached to the battery surface, which helps to reduce fire extinguishing dead zones, thereby achieving uniform fire extinguishing, preventing the fire from continuing to spread, and reducing safety hazards.

[0026] 2. The heat dissipation protection device for a new energy power battery described in this invention utilizes a dry powder anti-adhesion component. During the process of dry powder being sprayed along the soft cover, the rotating rod reciprocates, and the striking blocks at both ends of the rotating rod continuously impact the surface of the soft cover, causing the soft cover to vibrate. This causes the dry powder hidden in the soft cover to fall off, thereby effectively avoiding the impact on the fire extinguishing effect due to some dry powder remaining in the soft cover, and the impact on its elasticity and lifespan due to dry powder caking in the soft cover. Attached Figure Description

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the complete three-dimensional structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the protective box of this invention;

[0030] Figure 3 This is a schematic diagram of the three-dimensional structure of the soft cover.

[0031] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle;

[0032] Figure 5 This is a schematic diagram of a partial three-dimensional structure of the protective box;

[0033] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating rod;

[0034] Figure 7 This is a schematic diagram of the three-dimensional structure at the positioning plate;

[0035] Figure 8 This is a three-dimensional structural diagram of the mounting base;

[0036] Figure 9 This is a schematic diagram of the three-dimensional structure of the pipe.

[0037] In the diagram: 1. Protective box; 2. Filter screen; 3. Air cooler; 4. Dry powder tank; 5. Powder outlet pipe; 6. Valve 1; 7. Air outlet pipe; 8. Soft cover; 9. Positioning plate; 10. Two-way threaded rod; 11. Branch pipe; 12. Valve 2; 13. Lifting plate; 14. Electric actuator 1; 15. Adjusting rod; 16. Rotating rod; 17. Flexible hose; 18. Rigid pipe; 19. Fixing plate; 20. Electric actuator 2; 21. Adjusting ring; 22. Connecting rod; 23. Temperature sensor; 24. Smoke sensor; 25. Connecting pin; 26. Motor 1; 27. Mounting base; 28. Impact block; 29. ​​Box door; 30. Ventilation opening. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please refer to Figures 1-9 The present invention provides a technical solution: a heat dissipation protection device for a new energy power battery, including a protection box 1, a box door 29 on one side of the protection box 1, and ventilation openings 30 on both sides of the protection box 1.

[0040] It also includes battery positioning components;

[0041] The battery positioning assembly includes two positioning plates 9, which are slidably disposed on both sides of the bottom of the inner cavity of the protection box 1;

[0042] It also includes an adjustable heat dissipation and fire suppression integrated component;

[0043] The adjustable heat dissipation and fire extinguishing integrated component includes a cooler 3 and a dry powder tank 4 fixedly connected to the top of the outer wall of the protective box 1. The air outlet of the cooler 3 is connected to an air outlet pipe 7, and the powder outlet of the dry powder tank 4 is connected to a powder outlet pipe 5. A valve 6 is provided at one end of the powder outlet pipe 5. A branch pipe 11 is fixedly connected to one side of the inner wall of the protective box 1. The outlets of the air outlet pipe 7 and the powder outlet pipe 5 are respectively connected to the two sides of the branch pipe 11. A flexible hose 17 is connected to one side of the lower end of the branch pipe 11. A rigid pipe 18 is connected to one end of the flexible hose 17. A fixing plate 19 is fixedly inserted through the lower end of the rigid pipe 18. A soft cover 8 is fixedly connected to the lower end of the fixing plate 19.

[0044] In this embodiment, as Figures 2-5 , Figures 7-9 As shown, a bidirectional threaded rod 10 is rotatably installed on one side of the bottom of the inner cavity of the protective box 1, and the two sides of the bidirectional threaded rod 10 are respectively threaded to two positioning plates 9.

[0045] A lifting plate 13 is fixedly sleeved on one side of the outer wall of the rigid pipe 18, and one end of the lifting plate 13 is slidably connected to the inner wall of the protective box 1.

[0046] An electric actuator 14 is fixedly connected to one side of the inner wall of the protective box 1. The piston end of the electric actuator 14 is fixedly connected to one end of the lifting plate 13.

[0047] Multiple adjusting rods 15 are rotatably mounted on the upper end of the fixed plate 19. One end of each adjusting rod 15 is fixedly connected to a connecting nail 25, and the end of each connecting nail 25 is fixedly connected to one side of the soft cover 8. A connecting rod 22 is rotatably mounted on one end of the adjusting rod 15. An adjusting ring 21 is slidably sleeved on the outer wall of the rigid tube 18, and one end of the connecting rod 22 is rotatably mounted on the adjusting ring 21.

[0048] An electric actuator 20 is fixedly connected to one side of the upper end face of the fixed plate 19, and the piston end of the electric actuator 20 is fixedly connected to one side of the adjusting ring 21.

[0049] A valve 12 is installed at one end of the air outlet pipe 7 and the powder outlet pipe 5. A mounting base 27 is installed on one side of the inner wall of the protective box 1. A temperature sensor 23 and a smoke sensor 24 are installed on the mounting base 27.

[0050] A filter screen 2 is installed at each of the 30 ventilation openings.

[0051] Specifically, in the existing technology, the battery is first clamped and fixed on the base, and the ventilation pipe of the air cooler 3 is aligned with the battery. When the battery is overheated, cold air is blown onto the battery through the ventilation pipe, thereby achieving heat dissipation of the battery.

[0052] However, because the direction of cold air flow is fixed, it only affects a fixed area, making it difficult to evenly dissipate the heat emitted by the battery, thus affecting the battery's heat dissipation effect. Furthermore, if a battery catches fire due to overheating and is not detected and extinguished in time, the fire can spread rapidly and even ignite the entire vehicle, posing a significant safety hazard.

[0053] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0054] First, open the door 29, place the battery between the two positioning plates 9, and then rotate the bidirectional threaded rod 10 to make the two positioning plates 9 slide simultaneously and move closer to each other, thus clamping the battery.

[0055] Temperature sensor 23 monitors the internal temperature of the protection box 1 in real time. When the temperature exceeds the preset value, it indicates that the battery is overheating. At this time, the air cooler 3 starts, and valve 12 on the air outlet duct 7 opens. Cold air then passes through the air outlet duct 7, branch pipe 11, flexible hose 17, and rigid pipe 18, and blows along the inner wall of the soft cover 8 towards the battery, thereby providing air cooling for the battery. At the same time, electric actuator 20 drives the adjusting ring 21 to move up and down, which in turn drives multiple adjusting rods 15 to rotate simultaneously using multiple connecting rods 22. The adjusting rods 15 then pull the edge of the soft cover 8 through the connecting pins 25, causing the soft cover 8 to deform and thus adjusting the size of the soft cover 8. This changes the air outlet range in real time, allowing the cold air to be blown evenly onto the battery surface, thereby improving the heat dissipation effect of the battery. In addition, the filters 2 on both sides can intercept external dust, preventing dust from adhering to the battery surface through the vents 30.

[0056] When the battery catches fire unexpectedly, the smoke sensor 24 will detect smoke. At this time, valve 12 on the powder outlet pipe 5 will open, and valve 6 will open simultaneously. The dry powder in the dry powder canister 4 will be discharged through the powder outlet pipe 5 under air pressure and sprayed onto the surface of the battery along the inner wall of the soft cover 8. Since the size of the soft cover 8 is constantly changing during the dry powder spraying process, the dry powder can be evenly attached to the surface of the battery, which helps to reduce fire extinguishing dead spots, thereby achieving uniform fire extinguishing, preventing the fire from continuing to spread, and reducing safety hazards.

[0057] In this embodiment, as Figure 3 and Figure 5 As shown, it also includes a dry powder anti-adhesion component;

[0058] The dry powder anti-adhesion component includes a rotating rod 16 rotatably disposed on one side of the adjusting rod 15, and both ends of the rotating rod 16 are fixedly connected with striking blocks 28.

[0059] A motor 26 is fixedly connected to one side of the adjusting rod 15, and the output end of the motor 26 is fixedly connected to the middle of the rotating rod 16.

[0060] Specifically, in the above embodiments, although the spray range of dry powder can be changed by adjusting the size of the flexible cover 8 to reduce fire extinguishing blind spots, since the flexible cover 8 is made of elastic material, gaps inevitably appear during its deformation. Some dry powder can easily become trapped in these gaps, preventing it from falling smoothly onto the battery surface and thus affecting the fire extinguishing effect. Furthermore, residual dry powder can clump together, affecting the elasticity and service life of the flexible cover 8.

[0061] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0062] During the process of dry powder being sprayed along the soft cover 8, the motor 26 drives the rotating rod 16 to rotate back and forth. The striking blocks 28 at both ends of the rotating rod 16 continuously strike the surface of the soft cover 8, causing the soft cover 8 to shake. This causes the dry powder hidden in the soft cover 8 to fall off, thus effectively avoiding the impact on the fire extinguishing effect due to some dry powder remaining in the soft cover 8, and the impact on its elasticity and lifespan due to dry powder clumping in the soft cover 8.

[0063] Working principle: First, open the door 29 and place the battery between the two positioning plates 9. Then, rotate the bidirectional threaded rod 10 to make the two positioning plates 9 slide and move closer to each other at the same time, thus clamping the battery.

[0064] Temperature sensor 23 monitors the internal temperature of the protection box 1 in real time. When the temperature exceeds the preset value, it indicates that the battery is overheating. At this time, the air cooler 3 starts, and valve 12 on the air outlet duct 7 opens. Cold air then passes through the air outlet duct 7, branch pipe 11, flexible hose 17, and rigid pipe 18, and blows along the inner wall of the soft cover 8 towards the battery, thereby providing air cooling for the battery. At the same time, electric actuator 20 drives the adjusting ring 21 to move up and down, which in turn drives multiple adjusting rods 15 to rotate simultaneously using multiple connecting rods 22. The adjusting rods 15 then pull the edge of the soft cover 8 through the connecting pins 25, causing the soft cover 8 to deform and thus adjusting the size of the soft cover 8. This changes the air outlet range in real time, allowing the cold air to be blown evenly onto the battery surface, thereby improving the heat dissipation effect of the battery. In addition, the filters 2 on both sides can intercept external dust, preventing dust from adhering to the battery surface through the vents 30.

[0065] When the battery catches fire unexpectedly, the smoke sensor 24 will detect smoke. At this time, valve 12 on the powder outlet pipe 5 will open, and valve 6 will open simultaneously. The dry powder in the dry powder canister 4 will be discharged through the powder outlet pipe 5 under air pressure and sprayed onto the surface of the battery along the inner wall of the soft cover 8. Since the size of the soft cover 8 is constantly changing during the dry powder spraying process, the dry powder can be evenly attached to the surface of the battery, which helps to reduce fire extinguishing dead spots, thereby achieving uniform fire extinguishing, preventing the fire from continuing to spread, and reducing safety hazards.

[0066] During the process of dry powder being sprayed along the soft cover 8, the motor 26 drives the rotating rod 16 to rotate back and forth. The striking blocks 28 at both ends of the rotating rod 16 continuously strike the surface of the soft cover 8, causing the soft cover 8 to shake. This causes the dry powder hidden in the soft cover 8 to fall off, thus effectively avoiding the impact on the fire extinguishing effect due to some dry powder remaining in the soft cover 8, and the impact on its elasticity and lifespan due to dry powder clumping in the soft cover 8.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation protection device for a new energy power battery, comprising a protection box (1), characterized in that: The protective box (1) is provided with a door (29) on one side and ventilation openings (30) on both sides of the protective box (1). It also includes battery positioning components; The battery positioning assembly includes two positioning plates (9), which are slidably disposed on both sides of the bottom of the inner cavity of the protective box (1); It also includes an adjustable heat dissipation and fire suppression integrated component; The adjustable heat dissipation and fire extinguishing integrated component includes a cold air blower (3) and a dry powder tank (4) fixedly connected to the top of the outer wall of the protective box (1). The air outlet of the cold air blower (3) is connected to an air outlet pipe (7), and the powder outlet of the dry powder tank (4) is connected to a powder outlet pipe (5). A valve (6) is provided at one end of the powder outlet pipe (5). A branch pipe (11) is fixedly connected to one side of the inner wall of the protective box (1). The outlets of the air outlet pipe (7) and the powder outlet pipe (5) are respectively connected to both sides of the branch pipe (11). A flexible hose (17) is connected to one side of the lower end of the branch pipe (11). A rigid pipe (18) is connected to one end of the flexible hose (17). A fixing plate (19) is fixedly inserted through the lower end of the rigid pipe (18). A soft cover (8) is fixedly connected to the lower end of the fixing plate (19).

2. The heat dissipation protection device for a new energy power battery according to claim 1, characterized in that: The protective box (1) has a bidirectional threaded rod (10) rotatably installed on one side of the bottom of the inner cavity. The two sides of the bidirectional threaded rod (10) are threadedly connected to two positioning plates (9).

3. The heat dissipation protection device for a new energy power battery according to claim 1, characterized in that: A lifting plate (13) is fixedly sleeved on one side of the outer wall of the rigid tube (18), and one end of the lifting plate (13) is slidably connected to the inner wall of the protective box (1).

4. The heat dissipation protection device for a new energy power battery according to claim 1, characterized in that: An electric push rod (14) is fixedly connected to one side of the inner wall of the protective box (1), and the piston end of the electric push rod (14) is fixedly connected to one end of the lifting plate (13).

5. The heat dissipation protection device for a new energy power battery according to claim 1, characterized in that: The upper end of the fixed plate (19) is rotatably provided with multiple adjusting rods (15). One end of each adjusting rod (15) is fixedly connected to a connecting nail (25), and the end of each connecting nail (25) is fixedly connected to one side of the soft cover (8). One end of each adjusting rod (15) is rotatably provided with a connecting rod (22). The outer wall of the rigid tube (18) is slidably fitted with an adjusting ring (21), and one end of the connecting rod (22) is rotatably provided on the adjusting ring (21).

6. The heat dissipation protection device for a new energy power battery according to claim 5, characterized in that: An electric push rod (20) is fixedly connected to one side of the upper end face of the fixed plate (19), and the piston end of the electric push rod (20) is fixedly connected to one side of the adjusting ring (21).

7. The heat dissipation protection device for a new energy power battery according to claim 1, characterized in that: A valve 2 (12) is provided at one end of the air outlet pipe (7) and the powder outlet pipe (5). A mounting base (27) is provided on one side of the inner wall of the protective box (1). A temperature sensor (23) and a smoke sensor (24) are provided on the mounting base (27).

8. The heat dissipation protection device for a new energy power battery according to claim 1, characterized in that: A filter screen (2) is provided at the ventilation opening (30).

9. The heat dissipation protection device for a new energy power battery according to claim 1, characterized in that: It also includes a dry powder anti-adhesion component; The dry powder anti-adhesion assembly includes a rotating rod (16) rotatably disposed on one side of the adjusting rod (15), and both ends of the rotating rod (16) are fixedly connected with striking blocks (28).

10. A heat dissipation protection device for a new energy power battery according to claim 9, characterized in that: A motor (26) is fixedly connected to one side of the adjusting rod (15), and the output end of the motor (26) is fixedly connected to the middle of the rotating rod (16).

Images