New energy battery cooling and flame-retardant device

Abstract

The utility model discloses a new energy battery cooling and flame-retardant device which comprises a flame-retardant assembly arranged on the outer side of a battery pack and used for separating the battery pack; the flame-retardant assembly comprises a plurality of groups of flame-retardant square tubes mounted at the periphery of the battery pack, flame-retardant buckling covers are further arranged at the upper end and the lower end of the battery pack, the upper ends and the lower ends of the flame-retardant square tubes are respectively inserted into flame-retardant grooves of the corresponding flame-retardant buckling covers, and sealing rings are further arranged between the flame-retardant buckling covers and the flame-retardant square tubes. The battery packs can be separated, and meanwhile, each battery pack can be cooled, so that the use requirements can be better met.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, specifically a new energy battery cooling and flame-retardant device. Background Technology

[0002] New energy vehicles refer to vehicles that use unconventional fuels as their power source. They can be categorized into hybrid, pure electric, fuel cell, and other types. Currently, pure electric vehicles are the most popular among consumers. To address environmental concerns and the oil crisis, pure electric new energy vehicles have become the mainstream model. However, the batteries in new energy vehicles continuously generate heat during operation, and if heat dissipation is not timely, safety accidents can easily occur. Therefore, new energy batteries typically require appropriate cooling devices to improve their safety performance.

[0003] For example, the utility model patent with authorization announcement number CN210628449U discloses a rapid cooling device for new energy batteries. This device, in conjunction with through slots and through holes on a hollow plate, cools the air around the new energy battery. At the same time, it starts the first fan and the second fan to accelerate the speed at which the air in the enclosed space flows to the outside, resulting in a significant cooling effect and achieving the purpose of rapid cooling.

[0004] However, in practical use, since new energy batteries are usually composed of several battery packs, this cooling and flame-retardant device cannot separate the battery packs. When any battery pack catches fire, it may cause adjacent battery packs to be ignited, reducing the safety of the device and failing to meet the usage requirements. Utility Model Content

[0005] The purpose of this invention is to provide a cooling and flame-retardant device for new energy batteries to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A new energy battery cooling and flame-retardant device includes: a flame-retardant component disposed on the outside of the battery pack to separate the battery pack; the flame-retardant component includes multiple sets of flame-retardant square tubes installed around the battery pack, and flame-retardant covers are also provided at the upper and lower ends of the battery pack, the upper and lower ends of the flame-retardant square tubes are respectively inserted into the flame-retardant grooves of the corresponding flame-retardant covers, and a sealing ring is also provided between the flame-retardant covers and the flame-retardant square tubes.

[0008] As a preferred embodiment, the flame-retardant cap is provided with a flame-retardant tube at its end, the flame-retardant tube being connected to a return tube inside the flame-retardant cap, and a liquid guide tube being installed at the position of each flame-retardant square tube corresponding to the return tube.

[0009] As a preferred embodiment, the reflux pipe is U-shaped.

[0010] As a preferred embodiment, the system also includes a water tank, on which a main inlet pipe is installed. Several branch inlet pipes are distributed and installed on the main inlet pipe. The ends of the branch inlet pipes are connected to the flame-retardant pipes on the lower side of the corresponding flame-retardant components. A return water main pipe is also installed on the water tank. A return water branch pipe is fixed to the end of the flame-retardant pipe on the upper side of each flame-retardant component. The return branch pipes are connected to the return water main pipe. A water pump is installed on the main inlet pipe. A one-way valve is also installed on the main inlet pipe.

[0011] As a preferred embodiment, each of the inlet branch pipes is equipped with a two-position two-way solenoid valve, and each of the return branch pipes is equipped with a temperature sensor.

[0012] As a preferred embodiment, the system also includes a controller and a backup battery that powers the controller. The water pump, temperature sensor, and two-position two-way solenoid valve are all electrically connected to the controller.

[0013] As a preferred embodiment, the water tank is also equipped with a steam escape port.

[0014] Compared with existing technologies, the advantages of this invention are: by setting multiple sets of flame-retardant square tubes around the battery pack, and with flame-retardant caps at the top and bottom, the battery pack can be completely enclosed, effectively preventing the combustion of one battery pack from igniting other battery packs, thus improving the safety of the device's new energy battery use. This invention has a reasonable structure, which can separate the battery packs and cool each battery pack, better meeting usage requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a cooling and flame-retardant device for new energy batteries.

[0016] Figure 2 A schematic diagram of the arrangement of multiple new energy batteries in a new energy battery cooling and flame retardant device;

[0017] Figure 3 A schematic diagram of the flame-retardant component structure of a new energy battery cooling and flame-retardant device;

[0018] Figure 4 A schematic diagram of the structure of a flame-retardant component of a new energy battery cooling and flame-retardant device after the upper side cover is hidden;

[0019] Figure 5 This is a schematic diagram of the pipe cover structure of a cooling and flame-retardant device for new energy batteries.

[0020] In the diagram: 1. Water tank; 11. Steam escape port; 12. Main inlet pipe; 13. Water pump; 14. Check valve; 15. Backup battery; 16. Controller; 17. Main return pipe; 2. Battery pack; 21. Two-position two-way solenoid valve; 22. Temperature sensor; 23. Flame retardant components; 231. Flame retardant square tube; 232. Flame retardant cover; 233. Liquid guide pipe; 234. Flame retardant tube; 235. Flame retardant tank; 24. Inlet branch pipe; 25. Return branch pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1-5 A new energy battery cooling and flame-retardant device includes: a flame-retardant component 23, which is disposed on the outside of a battery pack 2 to separate the battery pack 2; the flame-retardant component 23 includes multiple sets of flame-retardant square tubes 231 installed around the battery pack 2; flame-retardant covers 232 are also provided at the upper and lower ends of the battery pack 2; the upper and lower ends of the flame-retardant square tubes 231 are respectively inserted into the flame-retardant grooves 235 of the corresponding flame-retardant covers 232; and a sealing ring is also provided between the flame-retardant covers 232 and the flame-retardant square tubes 231.

[0023] The working principle of this utility model is as follows: By setting multiple sets of flame-retardant square tubes 231 around the battery pack 2, and cooperating with the flame-retardant buckles 232 at the top and bottom ends, the battery pack 2 can be wrapped up, which can effectively prevent the battery pack 2 from igniting other battery packs when it burns, thereby improving the safety of the device's new energy battery use.

[0024] As a further embodiment, a flame-retardant tube 234 is provided at the end of the flame-retardant cover 232. The flame-retardant tube 234 is connected to the return pipe inside the flame-retardant cover 232. A liquid guide tube 233 is installed at the position of each flame-retardant square tube 231 in the return pipe. In this embodiment, the return pipe is U-shaped. It also includes a water tank 1. The water tank 1 is also equipped with a steam escape port 11. A main water inlet pipe 12 is installed on the water tank 1. A plurality of water inlet branch pipes 24 are distributed and installed on the main water inlet pipe 12. The end of the flame retardant pipe 234 on the lower side of the corresponding flame retardant component 23 is connected to the flame retardant pipe 234 on the upper side of each flame retardant component 23. The return water main pipe 17 is also installed on the water tank 1. The end of the flame retardant pipe 234 on the upper side of each flame retardant component 23 is fixed with a return water branch pipe 25. The return water branch pipe 25 is connected to the return water main pipe 17. A water pump 13 is installed on the water inlet main pipe 12. A one-way valve 14 is also installed on the water inlet main pipe 12. A two-position two-way solenoid valve 21 is installed on each water inlet branch pipe 24. A temperature sensor 22 is installed on each return water branch pipe 25.

[0025] When battery pack 2 spontaneously combusts, the temperature in the corresponding return water branch pipe 25 monitored by temperature sensor 22 exceeds the set threshold. At this time, water pump 13 works, and the corresponding two-position two-way solenoid valve 21 opens, thereby transporting water in water tank 1 to the corresponding inlet branch pipe 24, and then into the return pipe through flame retardant pipe 234, and then into the flame retardant square pipe 231 through the liquid guide pipe 233 on the return pipe. The heat generated by battery pack 2 will evaporate the water in flame retardant square pipe 231, thereby cooling and flame retardant battery pack 2 and preventing it from igniting adjacent battery pack 2. The water that absorbs heat enters the return water branch pipe 25 through the upper flame retardant pipe 234, and then enters the return water main pipe 17 and is finally transferred to water tank 1. High-temperature steam is discharged through steam escape port 11 on water tank 1.

[0026] In this embodiment, each battery pack 2 has a battery capacity of 20 kWh. When a single battery pack 2 is burning, it requires the evaporation of 32 kg of water. Typically, 100 kg of water needs to be loaded in the water tank 1 to provide sufficient water for the combustion of three battery packs 2, thereby improving the safety of the device.

[0027] As a further embodiment, the system also includes a controller 16 and a backup battery 15 that powers the controller 16. The water pump 13, temperature sensor 22, and two-position two-way solenoid valve 21 are all electrically connected to the controller 16. In this embodiment, the backup battery 15 may be a flammable battery, such as a lead-acid battery.

[0028] By setting a temperature sensor 22, it is convenient to monitor the water temperature in the corresponding flame-retardant component 23. When the water temperature is too high, the controller 16 controls the water pump 13 to work and opens the corresponding two-position two-way solenoid valve 21, thereby transferring the water in the water tank 1 to the corresponding flame-retardant component 23 to absorb the heat of the battery pack 2 and reduce the possibility of the battery pack 2 burning.

[0029] By setting a two-position two-way solenoid valve 21, it is possible to effectively prevent water in the flame-retardant component 23 from flowing back into other flame-retardant components 23.

[0030] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A cooling and flame-retardant device for new energy batteries, characterized in that, Comprising: A flame retardant component (23), disposed outside the battery pack (2) for separating the battery pack (2); The flame retardant component (23) includes multiple groups of flame retardant square tubes (231) installed around the battery pack (2), and flame retardant cover caps (232) are further provided at the upper and lower ends of the battery pack (2). The upper and lower ends of the flame retardant square tubes (231) are respectively inserted into the flame retardant grooves (235) of the corresponding flame retardant cover caps (232), and a sealing ring is further provided between the flame retardant cover caps (232) and the flame retardant square tubes (231).

2. The new energy battery cooling and flame-retardant device according to claim 1, characterized in that: A flame retardant tube (234) is provided at the end of the flame retardant cover cap (232), and the flame retardant tube (234) is communicated with a reflux tube inside the flame retardant cover cap (232). A liquid guide tube (233) is installed at the position of the reflux tube corresponding to each flame retardant square tube (231).

3. The new energy battery cooling and flame-retardant device according to claim 2, characterized in that: The reflux tube is in a "mouth" shape.

4. The new energy battery cooling and flame-retardant device according to claim 3, characterized in that: It further includes a water tank (1). An inlet main pipe (12) is installed on the water tank (1), and a number of inlet branch pipes (24) are distributively installed on the inlet main pipe (12). The end of the inlet branch pipe (24) is communicated with the flame retardant tube (234) at the lower side of the corresponding flame retardant component (23). A return water main pipe (17) is also installed on the water tank (1). A return water branch pipe (25) is fixed at the end of the flame retardant tube (234) at the upper side of each flame retardant component (23), and the return water branch pipe (25) is communicated with the return water main pipe (17). A water pump (13) is installed on the inlet main pipe (12), and a check valve (14) is also installed on the inlet main pipe (12).

5. The new energy battery cooling and flame-retardant device according to claim 4, characterized in that: A two-position two-way solenoid valve (21) is installed on each inlet branch pipe (24), and a temperature sensor (22) is installed on each return water branch pipe (25).

6. The new energy battery cooling and flame-retardant device according to claim 5, characterized in that: It further includes a controller (16) and a backup battery (15) for supplying power to the controller (16). The water pump (13), the temperature sensor (22), and the two-position two-way solenoid valve (21) are all electrically connected to the controller (16).

7. The new energy battery cooling and flame-retardant device according to claim 6, characterized in that: A steam escape port (11) is also installed on the water tank (1).

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