Fire extinguishing system for battery changing cabinet

Abstract

The utility model relates to the field of battery changing cabinets, in particular to a battery changing cabinet fire extinguishing system which comprises a controller, a fire fighting box, a fire fighting pipeline and a power-off protector, the fire fighting pipeline comprises a main pipeline and a plurality of branch pipelines, the branch pipelines are arranged on the main pipeline, and the output ends of the branch pipelines are provided with electromagnetic valves, smoke and fire sensors and diffusers. According to the utility model, through the cooperative work of the controller, the fire-fighting box, the fire-fighting pipeline, the electromagnetic valve, the smoke and fire sensor, the power-off protector, the booster pump, the ventilation device and other parts, the rapid, accurate and efficient fire extinguishing of a fire in the power conversion cabinet is realized. Therefore, not only is the safety of the battery changing cabinet improved, but also the safety of personnel and equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of power exchange cabinets, in particular to a fire extinguishing system for a power exchange cabinet. Background Art

[0002] At present, electric bicycles are becoming more and more popular. For people who frequently use electric bicycles, such as food delivery personnel, couriers, etc., the battery of the electric bicycle may be insufficient. If the electric bicycle is charged, the charging time of the battery is long and the electric bicycle cannot be used during charging, which will undoubtedly affect the efficiency of the staff. Therefore, battery swap cabinets come into being. When the electric vehicle is out of power, the charged battery can be conveniently replaced from the charging and swap cabinet, and the dead battery can be stored in the cabinet for charging, which brings great convenience to users of electric motorcycles.

[0003] The battery swap cabinet is mainly used to charge the lithium battery of electric motorcycles. In recent years, there have been many accidents involving the combustion and explosion of lithium batteries. The reason is that lithium-ion batteries may explode due to improper use during the charging and discharging process. Especially under conditions of abuse (such as heat, overcharging, short circuit, etc.), the battery may burn, explode, and even cause personal injury. Therefore, how to avoid such accidents to the greatest extent is an important issue that needs to be considered in the design of battery swap cabinets. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a fire extinguishing system for a power exchange cabinet.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model provides a fire extinguishing system for a power exchange cabinet, comprising a controller, a fire extinguishing box, a fire extinguishing pipe and a power-off protector, the fire extinguishing pipe comprising a main pipe and a branch pipe, and several branch pipes are arranged on the main pipe, and an electromagnetic valve, a smoke and fire sensor and a diffuser are installed at the output end of the branch pipe. The fire extinguishing box is used to store fire extinguishing agent, the main pipe is connected to the fire extinguishing box, a booster pump is installed inside the fire extinguishing box, the power-off protector is used to connect to the AC power, and the controller is respectively connected to the power-off protector, the electromagnetic valve, the smoke and fire sensor and the booster pump through power lines.

[0008] Preferably, it includes a ventilation device, which includes a ventilation duct and an electric valve, and the electric valve includes a chassis, a valve plate and a motor. The motor is fixedly installed in the chassis, and the output end of the motor passes through the chassis. The valve plate is rotatably installed in the ventilation duct, and the rotating shaft at the top of the valve plate passes through the ventilation duct. The output end of the motor is provided with a slot, and the top end of the rotating shaft is adapted to the slot through a clamping rod.

[0009] Further preferably, two arc-shaped sealing edges are symmetrically installed in the ventilation duct, and the arc-shaped sealing edges are matched with the valve plate.

[0010] Preferably again, a mounting frame is provided on the ventilation duct, a plurality of mounting holes are arranged around the mounting frame, and a sealing gasket is provided on the inner side of the mounting frame.

[0011] Preferably, the fire extinguishing agent filled in the fire extinguishing box is any one of difluoromonochloromonobromomethane, trifluoromonobromomethane, carbon dioxide, carbon tetrachloride and dry powder.

[0012] Further preferably, the diffuser is a conical structure, and the bottom diameter of the diffuser is larger than the top diameter of the diffuser.

[0013] Again preferably, it includes a power module, the power module is a battery structure, the battery structure is electrically connected to the controller, and the battery structure is respectively connected to the motor, the power-off protector, the electromagnetic valve, the smoke sensor and the boost pump through the controller.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a fire extinguishing system for a power exchange cabinet, which has the following beneficial effects:

[0016] 1. Through the controller, the fire extinguishing system can be intelligently and automatically controlled to improve the response speed and accuracy. At the same time, the controller can also monitor and manage each component of the system to ensure the stable operation of the system;

[0017] 2. The fire-fighting pipeline includes a main pipeline and a branch pipeline. The main pipeline is connected to the fire-fighting box and is responsible for transporting the fire-extinguishing agent to each branch pipeline. Several branch pipelines are provided on the main pipeline to evenly distribute the fire-extinguishing agent to every corner of the power-swap cabinet. The output end of the branch pipeline is equipped with an electromagnetic valve, a smoke and fire sensor, and a diffuser. The design of the fire-fighting pipeline enables the fire-extinguishing agent to be quickly and evenly distributed inside the power-swap cabinet to ensure the fire-fighting effect. At the same time, the setting of the branch pipeline improves the coverage and efficiency of fire-fighting;

[0018] 3. The setting of the electric valve in the ventilation device makes the opening and closing of the ventilation duct more flexible and convenient. By driving the motor to rotate the valve plate, the airflow in the ventilation duct can be accurately controlled, thereby achieving precise adjustment of the internal environment of the power swap cabinet and discharging the smoke and harmful gases inside the power swap cabinet.

[0019] In summary, the fire extinguishing system of the power exchange cabinet realizes the rapid, accurate and efficient fire extinguishing of the fire inside the power exchange cabinet through the coordinated work of the controller, fire box, fire pipe, electromagnetic valve, smoke and fire sensor, power failure protector, booster pump and ventilation device. This not only improves the safety of the power exchange cabinet, but also ensures the safety of personnel and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the assembly of the fire fighting box and the fire fighting pipeline of the utility model;

[0021] Figure 2 This is a schematic diagram of the ventilation device of the utility model;

[0022] Figure 3 This is a schematic diagram of the interior of the ventilation duct of the utility model;

[0023] Figure 4 This is a schematic diagram of the power-off protector of the utility model;

[0024] In the figure: 1. Fire extinguisher box; 2. Controller; 3. Booster pump; 4. Main pipeline; 5. Branch pipeline; 6. Fire sensor; 7. Solenoid valve; 8. Diffuser; 9. Ventilation duct; 10. Chassis; 11. Motor; 12. Mounting frame; 13. Valve plate; 14. Sealing edge; 15. Rotating shaft; 16. Clamp rod; 17. Power-off protector. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4The utility model discloses a fire extinguishing system for a power exchange cabinet, comprising a controller 2, a fire fighting box 1, a fire fighting pipe and a power failure protector 17. The fire fighting pipe comprises a main pipe 4 and a branch pipe 5. Several branch pipes 5 are arranged on the main pipe 4. An electromagnetic valve 7, a smoke and fire sensor 6 and a diffuser 8 are installed at the output end of the branch pipe 5. The fire fighting box 1 is used to store fire extinguishing agent. The main pipe 4 is connected to the fire fighting box 1. A booster pump 3 is installed inside the fire fighting box 1. The power failure protector 17 is used to connect to the mains. The controller 2 is connected to the power failure protector 17, the electromagnetic valve 7, the smoke and fire sensor 6 and the booster pump 3 through power lines.

[0027] In the preferred embodiment of the fire extinguishing system of the above-mentioned power exchange cabinet, the ventilation device is mainly composed of a ventilation duct 9 and an electric valve. The electric valve includes a chassis 10, a valve plate 13 and a motor 11. The motor 11 is fixedly installed in the chassis 10, and its output end passes through the chassis 10 and is connected to the rotating shaft 15 of the valve plate 13. When the motor 11 is started, the valve plate 13 is driven to rotate in the ventilation duct 9 through the rotation action of the output end, thereby controlling the switching state of the ventilation duct 9. When the ventilation duct 9 is installed on the power exchange cabinet, it can be installed through the door of the power exchange cabinet. When the motor 11 is installed, it can be fixedly installed on the inner wall of the door of the power exchange cabinet through the chassis 10.

[0028] In the preferred embodiment of the fire extinguishing system of the above-mentioned power exchange cabinet, two arc-shaped sealing edges 14 are symmetrically installed in the ventilation duct 9. When the valve plate 13 is closed, the arc-shaped sealing edge 14 fits tightly with the valve plate 13 to form a sealing barrier, which effectively prevents airflow from passing through.

[0029] In the preferred solution of the fire extinguishing system of the above-mentioned power exchange cabinet, the ventilation duct 9 is fixed to the door of the power exchange cabinet through the mounting frame 12, and a plurality of mounting holes are provided on the mounting frame 12 for easy fixing and installation. At the same time, a sealing gasket is provided on the inner side of the mounting frame 12 to enhance the sealing between the ventilation duct 9 and the power exchange cabinet.

[0030] In the preferred solution of the fire extinguishing system of the above-mentioned power exchange cabinet, the fire extinguishing box 1 is filled with fire extinguishing agent. When a fire occurs inside the power exchange cabinet, the fire extinguishing agent is quickly released through a specific release mechanism to extinguish the fire source. The selection of fire extinguishing agent ensures the reliability and efficiency of the fire extinguishing effect. Different fire extinguishing agents can be used to extinguish different types of fires in a targeted manner. The utility model preferably uses any one of difluoromonochloromonobromomethane, trifluoromonobromomethane, carbon dioxide, carbon tetrachloride and dry powder, which improves the adaptability and flexibility of the fire extinguishing system.

[0031] In the preferred embodiment of the fire extinguishing system of the above-mentioned power exchange cabinet, the diffuser 8 is a conical structure, and the bottom diameter is larger than the top diameter. When the fire extinguishing agent is released, the fire extinguishing agent can be more evenly diffused into the power exchange cabinet through the guidance of the diffuser 8 to ensure the fire extinguishing effect.

[0032] In the preferred solution of the fire extinguishing system of the above-mentioned battery exchange cabinet, the power module is a battery structure to provide power support for the entire fire extinguishing system. As the core of the system, the controller 2 is responsible for receiving and processing signals from various sensors, and controlling the actions of the motor 11, power-off protector 17, solenoid valve 7, smoke and fire sensor 6, and booster pump 3 according to the preset logic. The power module with a battery structure ensures that the fire extinguishing system can still work normally without an external power supply, thereby improving the reliability and stability of the system. The introduction of the controller 2 makes the control of the fire extinguishing system more intelligent and automated, and improves the response speed and accuracy of the system. At the same time, the controller 2 can realize precise control of each device to ensure that the overall performance and effect of the fire extinguishing system are in the best state.

[0033] The controller 2 of the fire extinguishing system of the power exchange cabinet is the core of the entire fire extinguishing system, which is responsible for receiving and processing signals from various sensors. When a fire signal is received, the controller 2 will quickly make a judgment and start the corresponding fire extinguishing measures. Through the controller 2, the intelligent and automatic control of the fire extinguishing system can be realized, and the response speed and accuracy can be improved. At the same time, the controller 2 can also monitor and manage the various components of the system to ensure the stable operation of the system. The fire fighting box 1 is used to store the fire extinguishing agent. When a fire occurs, the fire extinguishing agent is quickly released into the power exchange cabinet through the fire fighting pipe for fire extinguishing. The fire fighting pipe includes a main pipe 4 and a branch pipe 5. The main pipe 4 is connected to the fire fighting box 1 and is responsible for transporting the fire extinguishing agent to each branch pipe 5. Several branch pipes 5 are provided on the main pipe 4 to evenly distribute the fire extinguishing agent to each corner of the power exchange cabinet. The output end of the branch pipe 5 is equipped with an electromagnetic valve 7, a smoke and fire sensor 6 and a diffuser 8. When the controller 2 receives a fire signal, it will control the electromagnetic valve 7 to open so that the fire extinguishing agent can be released into the power exchange cabinet through the branch pipe 5. The smoke and fire sensor 6 is used to monitor the smoke and fire situation inside the power exchange cabinet in real time and transmit the signal to the controller 2. When a fire signal is detected, the controller 2 will initiate corresponding fire extinguishing measures. The design of the power-off protector 17 enhances the reliability and stability of the fire extinguishing system. The power-off protector 17 is used to access the mains power and the power supply system of the power exchange cabinet. When the power exchange cabinet catches fire, the power-off protector 17 can be controlled to disconnect the mains power access. The use of the booster pump 3 increases the delivery pressure of the fire extinguishing agent, ensuring that the fire extinguishing agent can quickly and accurately reach the fire scene for fire extinguishing.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire extinguishing system for a power exchange cabinet, characterized in that: The invention comprises a controller (2), a fire fighting box (1), a fire fighting pipeline and a power failure protector (17), wherein the fire fighting pipeline comprises a main pipeline (4) and a branch pipeline (5), wherein a plurality of branch pipelines (5) are arranged on the main pipeline (4), and an electromagnetic valve (7), a smoke and fire sensor (6) and a diffuser (8) are installed at the output end of the branch pipeline (5). The fire fighting box (1) is used to store fire extinguishing agent, the main pipeline (4) is connected to the fire fighting box (1), a booster pump (3) is installed inside the fire fighting box (1), and the power failure protector (17) is used to connect to the mains electricity. The controller (2) is respectively connected to the power failure protector (17), the electromagnetic valve (7), the smoke and fire sensor (6) and the booster pump (3) through power lines.

2. A fire extinguishing system for a power exchange cabinet according to claim 1, characterized in that: The invention comprises a ventilation device, wherein the ventilation device comprises a ventilation duct (9) and an electric valve, wherein the electric valve comprises a chassis (10), a valve plate (13) and a motor (11), wherein the motor (11) is fixedly mounted in the chassis (10), and the output end of the motor (11) passes through the chassis (10), the valve plate (13) is rotatably mounted in the ventilation duct (9), a rotating shaft (15) at the top end of the valve plate (13) passes through the ventilation duct (9), a slot is provided at the output end of the motor (11), and the top end of the rotating shaft (15) is adapted to the slot via a clamping rod (16).

3. A fire extinguishing system for a power exchange cabinet according to claim 2, characterized in that: Two arc-shaped sealing edges (14) are symmetrically installed in the ventilation duct (9), and the arc-shaped sealing edges (14) are matched with the valve plate (13).

4. A fire extinguishing system for a power exchange cabinet according to claim 3, characterized in that: The ventilation duct (9) is provided with a mounting frame (12), the mounting frame (12) is surrounded by a plurality of mounting holes, and a sealing gasket is provided on the inner side of the mounting frame (12).

5. A fire extinguishing system for a power exchange cabinet according to claim 4, characterized in that: The fire extinguishing agent filled in the fire fighting box (1) is any one of difluoromonochloromonobromomethane, trifluoromonobromomethane, carbon dioxide, carbon tetrachloride and dry powder.

6. A fire extinguishing system for a power exchange cabinet according to claim 5, characterized in that: The diffuser (8) is a conical structure, and the bottom diameter of the diffuser (8) is greater than the top diameter of the diffuser (8).

7. A fire extinguishing system for a power exchange cabinet according to claim 5, characterized in that: The invention comprises a power module, wherein the power module is a battery structure, the battery structure is electrically connected to a controller (2), and the battery structure is respectively connected to a motor (11), a power-off protector (17), an electromagnetic valve (7), a pyrotechnic sensor (6) and a booster pump (3) through the controller (2).

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