Circulating water immersion type cooling and fire extinguishing waterway structure of battery charging and replacing cabinet
By designing a water circuit structure for circulating water-immersed cooling and fire extinguishing in the charging and swapping cabinet, and using the circulating water-immersed circuit to quickly inject water and cool and extinguish the fire when the lithium battery is thermally out of control or burning, the problem of inability to effectively reduce and suppress and extinguish fire in the existing technology is solved, and effective prevention and control of lithium battery combustion is achieved.
Patent Information
- Application Number
- CN202421835262.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing charging and swapping cabinets have thermal runaway and combustion risks when charging lithium batteries. The existing chemical fire extinguishing methods cannot cool down and suppress before thermal runaway, and cannot effectively extinguish the fire burning of the battery, which poses safety hazards.
A water circuit structure for circulating water immersion cooling and fire extinguishing of charging and replacing cabinets is designed. By setting up a water inlet and return port in the battery compartment, a water inlet pipe and a water pump are used to form a circulating water immersion circuit. When the battery temperature is high or burns, water is quickly injected to cool down and extinguish the fire. The excess water flows back to the water storage tank through the return tank to realize recycling.
When lithium batteries are thermally out of control or burn, they can quickly inject water to cool down and extinguish fires, effectively avoid safety hazards and improve the safety performance of charging and swapping cabinets.
Smart Images
Figure CN222891902U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of charging and swapping cabinets, in particular to a water channel structure for circulating water immersion cooling and fire extinguishing of a charging and swapping cabinet. [Background technology]
[0002] When charging, lithium batteries have a certain risk of thermal runaway and combustion. The chemical fire extinguishing methods such as aerosols commonly used in charging and swapping cabinets in the existing technology have certain limitations. They cannot cool down and suppress before thermal runaway combustion, and cannot effectively extinguish the fire of battery burning, posing a safety hazard. [Utility Model Content]
[0003] In order to overcome the above problems, the utility model proposes a water channel structure for circulating water immersion cooling and fire extinguishing of a charging and swapping cabinet, which can effectively solve the above problems.
[0004] A technical solution provided by the utility model to solve the above-mentioned technical problems is: to provide a water channel structure for circulating water immersion cooling and fire extinguishing of a charging and swapping cabinet, including a charging and swapping cabinet body, a fixed beam is arranged inside the charging and swapping cabinet body, and a battery compartment is fixedly connected to the fixed beam; a water inlet is provided in the battery compartment, and a water inlet pipe is connected to the water inlet, and a water storage tank is also arranged inside the charging and swapping cabinet body, and the water inlet pipe is connected to the water storage tank; a return water port is provided in the battery compartment, a return water guide plate is arranged on the outer side of the return water port, a return water guide channel is formed between the return water guide plate and the outer wall of the battery compartment, and the return water port is connected to the return water guide channel; a return water trough is provided on the fixed beam, the return water trough is connected to the return water guide channel, and the return water trough is connected to the water storage tank through a return water trough connecting pipe.
[0005] Preferably, the water return port and the water inlet are both arranged on the rear side wall of the battery compartment, the water inlet is located above the water return port, and the water inlet is located above the rear side wall of the battery compartment.
[0006] Preferably, a water pump is provided inside the charging and swapping cabinet body, and the water pump is respectively connected to the water inlet pipe and the water storage tank.
[0007] Preferably, a solenoid valve is provided on the water inlet pipe, and the solenoid valve is used to control the on-off of the water channel of the water inlet pipe.
[0008] Preferably, a water return leakage port is provided at the bottom of the water return tank, and the water return leakage port is connected to the water storage tank through a water return tank connecting pipe.
[0009] Preferably, there are multiple fixed beams, and the multiple fixed beams are arranged in parallel up and down. Each fixed beam is provided with a return water groove, and each return water groove is provided with a return water leakage port. The positions of all the return water leakage ports are aligned up and down, and all the return water leakage ports are connected through the return water groove connecting pipe.
[0010] Preferably, a plurality of battery compartments are fixedly connected to each fixed beam, and the return water grooves on each fixed beam are respectively connected to the return water diversion channels on the sides of the battery compartments fixed thereto.
[0011] Preferably, a single-chip control system is provided inside the charging and swapping cabinet body, and a compartment temperature sensor, a smoke sensor and a battery BMS temperature sensor are provided in the battery compartment, and the compartment temperature sensor, the smoke sensor and the battery BMS temperature sensor are respectively connected to the single-chip control system.
[0012] Preferably, a water tank water level sensor is provided in the water storage tank, and the water tank water level sensor and the water pump are respectively connected to the single chip microcomputer control system.
[0013] Preferably, a battery backup power supply and a 4G Internet of Things module are provided inside the charging and swapping cabinet body, and the battery backup power supply and the 4G Internet of Things module are respectively connected to the single-chip microcomputer control system; the 4G Internet of Things module is connected to a 4G antenna.
[0014] Compared with the prior art, the water circuit structure of the circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet of the utility model adopts a circulating water immersion cooling and fire extinguishing method, and uses the fixed beam of the warehouse body to design a return water trough, which forms a water immersion circulation loop with the water storage tank, the water pump, the water inlet pipe, and the battery compartment. Before the battery temperature is thermally out of control and when it burns, it can quickly inject water into the risky lithium battery compartment, and immerse the entire lithium battery in water for rapid cooling and fire extinguishing. Excess water from the soaked battery flows back to the water storage tank through the return water trough designed with the fixed beam, and the water in the water storage tank is injected into the battery compartment through the water pump and the solenoid valve, and circulates continuously, thereby realizing circulating water immersion cooling and fire extinguishing of the burning lithium battery in the charging and swapping cabinet, and can effectively avoid safety hazards.
Brief Description of the Drawings
[0015] Figure 1 This is an overall diagram of the water circuit structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet of the utility model;
[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0017] Figure 3 A battery compartment structure diagram of the water circuit structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet of the utility model;
[0018] Figure 4 for Figure 3 Enlarged view of point B in the middle;
[0019] Figure 5 This is a functional principle block diagram of the water circuit structure of the charging and swapping cabinet with circulating water immersion cooling and fire extinguishing in the utility model. [Specific implementation method]
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are limited to relative positions on the specified view rather than absolute positions.
[0022] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0023] See also Figures 1 to 5 The water channel structure of the circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet of the utility model includes a charging and swapping cabinet body 10, a fixed beam 20 is arranged inside the charging and swapping cabinet body 10, and a battery compartment 30 is fixedly connected to the fixed beam 20.
[0024] The battery compartment 30 is provided with a water inlet 31 , and the water inlet 31 is connected to a water inlet pipe 70 . A water storage tank 40 is also provided inside the charging and swapping cabinet body 10 , and the water inlet pipe 70 is communicated with the water storage tank 40 .
[0025] The battery compartment 30 is provided with a water return port 32 , and a water return guide plate 80 is arranged outside the water return port 32 . A water return guide channel 81 is formed between the water return guide plate 80 and the outer wall of the battery compartment 30 . The water return port 32 is connected to the water return guide channel 81 .
[0026] The water return port 32 and the water inlet 31 are both arranged on the rear side wall of the battery compartment 30. The water inlet 31 is located above the water return port 32. The water inlet 31 is located above the rear side wall of the battery compartment 30, which is beneficial to form a spray effect when water is injected, and is more conducive to fire extinguishing.
[0027] The fixed beam 20 is provided with a water return groove 21 , which is connected to the water return diversion channel 81 . The water return groove 21 is connected to the water storage tank 40 through a water return groove connecting pipe.
[0028] A water pump 60 is disposed inside the charging and swapping cabinet body 10 , and the water pump 60 is respectively connected to the water inlet pipe 70 and the water tank 40 , and is used to pump water out of the water tank 40 and supply it to the water inlet pipe 70 , and then inject it into the battery compartment 30 through the water inlet pipe 70 .
[0029] The water inlet pipe 70 is provided with a solenoid valve 50 , and the solenoid valve 50 is used to control the on-off of the water passage of the water inlet pipe 70 .
[0030] The water circuit structure of circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet of the utility model adopts circulating water immersion cooling and fire extinguishing mode, and utilizes the fixed beam 20 of the warehouse body to design a return water groove 21, and forms a water immersion circulation loop with the water storage tank 40, the water pump 60, the water inlet pipe 70, and the battery compartment 30. Before the battery temperature is out of control and when it burns, water can be quickly injected into the risky lithium battery compartment, and the entire lithium battery can be immersed in water for rapid cooling and fire extinguishing. Excess water of the soaked battery flows back to the water storage tank 40 through the return water groove 21 designed on the fixed beam 20, and the water in the water storage tank 40 is injected into the battery compartment 30 through the water pump 60 and the solenoid valve 50, and circulates continuously, so as to realize circulating water immersion cooling and fire extinguishing of the burning lithium battery in the charging and swapping cabinet, and can effectively avoid safety hazards.
[0031] A water return leakage port 22 is provided at the bottom of the water return tank 21 , and the water return leakage port 22 is connected to the water storage tank 40 through a water return tank connecting pipe.
[0032] There are multiple fixed beams 20, which are arranged in parallel up and down. Each fixed beam 20 is provided with a return groove 21, and each return groove 21 is provided with a return water leakage port 22. The positions of all the return water leakage ports 22 are aligned up and down, and all the return water leakage ports 22 are connected through the return groove connecting pipe.
[0033] A plurality of battery compartments 30 are fixedly connected to each fixed beam 20 , and the return water groove 21 on each fixed beam 20 is respectively connected to the return water guide channel 81 on the side of the battery compartment 30 fixed thereto.
[0034] A single-chip control system is provided inside the charging and swapping cabinet body 10, and a compartment temperature sensor, a smoke sensor and a battery BMS temperature sensor are provided in the battery compartment 30, and the compartment temperature sensor, the smoke sensor and the battery BMS temperature sensor are respectively connected to the single-chip control system.
[0035] A water tank water level sensor is disposed in the water storage tank 40 , and the water tank water level sensor and the water pump 60 are respectively connected to the single chip microcomputer control system.
[0036] The charging and swapping cabinet body 10 is provided with a battery backup power supply and a 4G Internet of Things module, and the battery backup power supply and the 4G Internet of Things module are respectively connected to the single-chip control system. The 4G Internet of Things module is connected to a 4G antenna.
[0037] The single chip control system is connected to a plurality of solenoid valve groups, each of which includes a plurality of solenoid valves 50 .
[0038] Working principle:
[0039] 1. During normal operation, the water fire protection is not started, the water storage tank 40 stores water, the pump 60 and the solenoid valve 50 do not work, and there is no water in the water inlet pipe 70. The single-chip control system detects the water level status through the water level sensor in the water storage tank 40, and reports it to the Internet of Things management platform through the 4G Internet of Things module and 4G antenna. When there is a shortage of water, it reminds you to add water to ensure that there is enough water in the water storage tank 40;
[0040] 2. When a lithium battery in a battery compartment 30 is abnormally hot or catches fire, the temperature sensor, smoke sensor, and battery BMS temperature sensor in the battery compartment 30 detect the abnormal state, and the single-chip control system starts the water fire fighting function and reports it to the Internet of Things management platform through the 4G Internet of Things module and the 4G antenna. At the same time, the water pump 60 starts pumping water, and the solenoid valve 50 corresponding to the abnormal compartment is opened. The water pumped by the water pump 60 is injected into the abnormal compartment through the solenoid valve 50 and the water inlet pipe 70. When the water injected into the compartment soaks the battery and reaches the height of the return water port 32, it returns to the water storage tank 40 through the return water port 32, the return water guide plate 80, the return water trough 21, and the return water trough connecting pipe. The cycle continues in this way to ensure that the water soaked in the battery circulates in the compartment body, effectively cooling and extinguishing the fire.
[0041] Compared with the prior art, the water circuit structure of the circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet of the utility model adopts a circulating water immersion cooling and fire extinguishing method, and uses the fixed beam 20 of the warehouse body to design a return water groove 21, which forms a water immersion circulation loop with the water tank 40, the pump 60, the water inlet pipe 70, and the battery compartment 30. Before the battery temperature is thermally out of control and when it burns, it can quickly inject water into the risky lithium battery compartment, immerse the entire lithium battery in water for rapid cooling and fire extinguishing. The excess water of the soaked battery flows back to the water tank 40 through the return water groove 21 designed on the fixed beam 20, and the water in the water tank 40 is injected into the battery compartment 30 through the pump 60 and the solenoid valve 50, and circulates continuously, so as to realize the circulating water immersion cooling and fire extinguishing of the burning lithium battery in the charging and swapping cabinet, and can effectively avoid safety hazards.
[0042] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.
Claims
1. The water circuit structure of circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet is characterized by: It includes a charging and swapping cabinet body, wherein a fixed beam is arranged inside the charging and swapping cabinet body, and a battery compartment is fixedly connected to the fixed beam; The battery compartment is provided with a water inlet, the water inlet is connected to a water inlet pipe, a water storage tank is also provided inside the charging and swapping cabinet body, and the water inlet pipe is connected to the water storage tank; The battery compartment is provided with a water return port, a water return guide plate is arranged outside the water return port, a water return guide channel is formed between the water return guide plate and the outer wall of the battery compartment, and the water return port is connected with the water return guide channel; A return water groove is provided on the fixed beam, the return water groove is connected with the return water diversion channel, and the return water groove is connected with the water storage tank through a return water groove connecting pipe.
2. The water circuit structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet according to claim 1 is characterized in that: The water return port and the water inlet are both arranged on the rear side wall of the battery compartment, the water inlet is located above the water return port, and the water inlet is located above the rear side wall of the battery compartment.
3. The water circuit structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet according to claim 1 is characterized in that: A water pump is arranged inside the charging and swapping cabinet body, and the water pump is respectively connected to the water inlet pipe and the water storage tank.
4. The water channel structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet according to claim 1 is characterized in that: The water inlet pipe is provided with a solenoid valve, which is used to control the on-off of the water channel of the water inlet pipe.
5. The water channel structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet according to claim 1 is characterized in that: A water return leakage port is provided at the bottom of the water return tank, and the water return leakage port is communicated with the water storage tank through a water return tank connecting pipe.
6. The water channel structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet according to claim 5 is characterized in that: There are multiple fixed beams, which are arranged in parallel up and down. Each fixed beam is provided with a return water groove, and each return water groove is provided with a return water leakage port. The positions of all the return water leakage ports are aligned up and down, and all the return water leakage ports are connected through the return water groove connecting pipe.
7. The water channel structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet according to claim 6 is characterized in that: A plurality of battery compartments are fixedly connected to each fixed beam, and the return water grooves on each fixed beam are respectively connected to the return water diversion channels on the sides of the battery compartments fixed thereon.
8. The water channel structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet according to claim 3 is characterized in that: A single-chip control system is arranged inside the charging and swapping cabinet body, and a compartment temperature sensor, a smoke sensor and a battery BMS temperature sensor are arranged in the battery compartment, and the compartment temperature sensor, the smoke sensor and the battery BMS temperature sensor are respectively connected to the single-chip control system.
9. The water channel structure for circulating water immersion cooling and fire extinguishing of the charging and swapping cabinet according to claim 8, characterized in that: A water tank water level sensor is arranged in the water storage tank, and the water tank water level sensor and the water pump are respectively connected to the single chip microcomputer control system.
10. The water channel structure for circulating water immersion cooling and fire extinguishing of a charging and swapping cabinet according to claim 1, characterized in that: A battery backup power supply and a 4G Internet of Things module are arranged inside the charging and swapping cabinet body. The battery backup power supply and the 4G Internet of Things module are respectively connected to the single-chip microcomputer control system; the 4G Internet of Things module is connected to a 4G antenna.