Battery charging explosion-proof cabinet

Abstract

The utility model discloses a battery charging explosion-proof cabinet which comprises a cabinet body, a plurality of cabinet boxes are arranged in the cabinet body, a cabinet door is hinged to the outside of each cabinet box, a charging socket is fixedly installed in the middle of the inner bottom end of each cabinet box, gas storage fire extinguishing equipment is fixedly installed in the middle of the upper end of the cabinet body, and an air channel is formed in the middle of the cabinet body. And the gas storage fire extinguishing equipment is communicated with the gas channel. The battery charging explosion-proof cabinet has the beneficial effects that the air storage fire extinguishing equipment, the air passage, the ventilation cavity, the air supply valve, the temperature sensing detector and the fan are arranged, so that the air supply valve is opened when high temperature is detected in the battery charging process of the battery charging explosion-proof cabinet; according to the explosion-proof cabinet, high-pressure fire extinguishing gas stored in the gas storage fire extinguishing equipment enters the corresponding cabinet boxes through the gas channels and the ventilation cavities, airflow is formed in cooperation with the fan, the fire extinguishing gas can enter the rechargeable batteries to conduct fire extinguishing treatment on electric appliance parts in the rechargeable batteries, and the fire extinguishing effect of the explosion-proof cabinet on the rechargeable batteries is improved.

Description

Technical Field

[0001] The utility model relates to the field of explosion-proof cabinets, in particular to a battery charging explosion-proof cabinet. Background Art

[0002] Lithium batteries use lithium metal or lithium alloys as anode materials and non-aqueous electrolyte solutions. Due to their high energy density and high storage density, they are currently widely used in electric bicycles, electric vehicles, electronic products, small household appliances, energy storage devices, wearable products, and other fields. However, lithium batteries are both flammable and a source of ignition. In the event of collision, extrusion, overcharging, or short circuit, they can easily cause safety accidents such as fires and explosions. News reports of battery explosions during charging in electric vehicles, electric bicycles, mobile phones, drones, and other devices are common. Industries with larger-capacity lithium batteries are particularly exposed to the risk of spontaneous combustion, which can easily cause personal injury and significant property damage. Therefore, lithium battery charging operations require the use of explosion-proof cabinets.

[0003] Most existing battery charging explosion-proof cabinets use conventional explosion-proof fire-fighting equipment, such as using temperature sensors to detect temperature changes inside the cabinet. When high temperature is detected, the fire-fighting equipment will be triggered to spray fire-extinguishing gas or fire-extinguishing powder. Although this can meet conventional fire-fighting needs, the sprayed fire-extinguishing gas or fire-extinguishing powder is usually only filled in the charging chamber and cannot enter the rechargeable battery. As a result, the electrical components inside the rechargeable battery cannot be extinguished, resulting in the explosion-proof cabinet's fire-extinguishing effect on the rechargeable battery being unsatisfactory. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a battery charging explosion-proof cabinet in view of the current status of the existing technology, which adopts airway valve exhaust fan and other equipment to allow fire extinguishing gas to flow into the charger in the form of airflow to improve the fire extinguishing effect.

[0005] The present invention is realized through the following technical scheme: The present invention proposes a battery charging explosion-proof cabinet, comprising a cabinet body, wherein a plurality of cabinet boxes are provided in the cabinet body, the cabinet boxes are evenly distributed, and each cabinet box is hinged with a cabinet door on the outside, a charging socket is fixedly installed in the middle of the bottom end of the cabinet box, a gas storage fire extinguishing device is fixedly installed in the middle of the upper end of the cabinet body, an air duct is provided in the middle of the cabinet body, the gas storage fire extinguishing device is connected with the air duct, a ventilation cavity is provided on the side wall adjacent to the air duct and the cabinet box, an air supply valve is plugged into the part of the cabinet box that is connected to the ventilation cavity, an exhaust window is provided on the side wall of the cabinet body corresponding to the air supply valve, an exhaust fan is installed in the exhaust window, and a temperature detector is fixedly installed on the top of the cabinet box.

[0006] By adopting the above technical solution, the gas storage fire extinguishing equipment can contain high-pressure fire extinguishing gas. When the temperature detector detects a high temperature warning, the gas supply valve opens, and the fire extinguishing gas in the gas storage fire extinguishing equipment enters the corresponding cabinet through the air duct and cooperates with the exhaust fan to enable the fire extinguishing gas to enter the charger in the form of airflow, thereby achieving a fire extinguishing effect on the electrical components inside the charger.

[0007] Furthermore, the gas storage fire extinguishing equipment contains heptafluoropropane gas.

[0008] By adopting the above technical solution, HFC-227ea gas is a clean gas chemical fire extinguishing agent that mainly uses chemical fire extinguishing and also has physical fire extinguishing effects. It is colorless, odorless, low in toxicity, non-conductive, does not pollute the protected objects, and will not cause damage to property and precision facilities.

[0009] Furthermore, the gas storage fire extinguishing equipment is a gas storage box fixed to the upper end of the cabinet, and an electric push rod is fixedly installed on the top of the gas storage box. The movable end of the electric push rod passes through the gas storage box and extends into the gas storage box. The movable end of the electric push rod is fixedly connected to a gas pressure plate, and the edge of the gas pressure plate has an airtight rubber coating.

[0010] By adopting the above technical solution, when more heptafluoropropane gas stored in the gas tank is released and less remains, the gas compression plate can compress the heptafluoropropane gas stored in the gas tank under the drive of the electric push rod, forcing the remaining heptafluoropropane gas to be completely discharged.

[0011] Furthermore, the gas storage fire extinguishing equipment is a gas storage tank that can be detachably connected to the upper end of the cabinet.

[0012] By adopting the above technical solution, the gas storage tank can be disassembled, assembled and replaced, thereby improving the flexibility of use.

[0013] Furthermore, the temperature detector is electrically connected to the air supply valve and the electric push rod.

[0014] By adopting the above technical solution, the temperature detector is a trigger-type switch device.

[0015] Furthermore, a barometer is installed on one side wall of the air storage box through a slot, and a detection end of the barometer is located inside the air storage box.

[0016] By adopting the above technical solution, the barometer can detect the air pressure change in the air storage tank.

[0017] Furthermore, an air supply valve is threadedly connected to the other side wall of the air storage box.

[0018] By adopting the above technical solution, the gas replenishing valve is used to replenish the heptafluoropropane gas in the gas storage tank.

[0019] Furthermore, the charging socket has multiple charging sockets.

[0020] By adopting the above technical solution, the charging effect of the charging socket is ensured.

[0021] Furthermore, a handle is fixedly mounted on the outer side wall of the cabinet door.

[0022] By adopting the above technical solution, users can quickly and easily manage the opening and closing of the cabinet door.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The utility model is provided with a gas storage fire extinguishing device, an air duct, a ventilation cavity, an air supply valve, a temperature sensor and a fan. When a high temperature is detected during the battery charging process, the gas supply valve is opened to allow the high-pressure fire extinguishing gas stored in the gas storage fire extinguishing device to enter the corresponding cabinet box through the air duct and the ventilation cavity. The fan is cooperated to form an air flow, so that the fire extinguishing gas can enter the interior of the rechargeable battery to extinguish the fire of the electrical components therein, thereby improving the fire extinguishing effect of the explosion-proof cabinet on the rechargeable battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of a battery charging explosion-proof cabinet described in the utility model;

[0026] Figure 2 This is a right-side structural schematic diagram of a battery charging explosion-proof cabinet described in the present utility model;

[0027] Figure 3 This is a structural sectional view of a battery charging explosion-proof cabinet described in the utility model;

[0028] Figure 4 This is a battery charging explosion-proof cabinet described in the utility model Figure 3 Schematic diagram of the upward-looking structure.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Cabinet body; 2. Cabinet box; 3. Cabinet door; 4. Charging socket; 5. Air storage box; 501. Electric push rod; 502. Air pressure plate; 503. Air supply valve; 504. Barometer; 6. Air duct; 7. Ventilation cavity; 8. Air supply valve; 9. Exhaust window; 10. Fan; 11. Temperature detector. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] like Figure 1-Figure 3 As shown, a battery charging explosion-proof cabinet in this embodiment includes a cabinet body 1, a plurality of cabinet boxes 2 are opened in the cabinet body 1, and the cabinet boxes 2 contain rechargeable batteries. The cabinet boxes 2 are evenly distributed, and each cabinet box 2 is hinged with a cabinet door 3. A charging socket 4 is fixedly installed in the middle of the bottom end of the cabinet box 2, and the rechargeable battery can be charged by connecting the circuit through the charging socket 4. A gas storage box 5 is fixedly installed in the middle of the upper end of the cabinet body 1, and the gas storage box 5 is filled with heptafluoropropane gas. An air duct 6 is opened in the middle of the cabinet body 1, and the gas storage box 5 is connected to the air duct 6. A ventilation cavity 7 is opened on the side wall adjacent to the air duct 6 and the cabinet box 2. Air supply valves 8 are connected to the ventilation cavity 7, and exhaust windows 9 are provided on the side walls corresponding to the air supply valves 8 in the cabinet 1. Exhaust fans 10 are installed in the exhaust windows 9, and temperature detectors 11 are fixedly installed on the top of the cabinet box 2. When the temperature detector 11 detects high temperature, the air supply valve 8 opens, and the heptafluoropropane gas in the gas storage tank 5 enters the corresponding cabinet box 2 through the airway 6 and the ventilation cavity 7. Under the action of the exhaust fan 10, the heptafluoropropane gas will form an airflow, which can enter the interior of the rechargeable battery and achieve a fire extinguishing effect on the electrical components inside the rechargeable battery.

[0033] like Figure 3 and Figure 4 As shown, an electric push rod 501 is fixedly installed on the top of the gas storage box 5. The movable end of the electric push rod 501 passes through the gas storage box 5 and extends into the gas storage box 5. The movable end of the electric push rod 501 is fixedly connected to a pressure plate 502. The edge of the pressure plate 502 has an airtight rubber coating. When the gas storage box 5 releases more heptafluoropropane gas and less remains, the electric push rod 501 can drive the pressure plate 502 to move downward, thereby compressing the remaining heptafluoropropane gas and forcing it to enter the air duct 6 to complete the fire extinguishing operation. The airtight rubber coating can ensure that the pressure plate 502 has a stable and efficient squeezing effect on the heptafluoropropane gas.

[0034] like Figure 1 and Figure 2 As shown, the temperature detector 11 is electrically connected to the gas supply valve 8 and the electric push rod 501. A barometer 504 is installed on one side wall of the gas storage box 5 through a slot. The detection end of the barometer 504 is located inside the gas storage box 5. The barometer 504 can detect the air pressure changes in the gas storage box 5, making it convenient for staff to check the remaining gas reserves in the gas storage box 5.

[0035] like Figure 2As shown, a gas supply valve 503 is threadedly connected to the other side wall of the gas storage box 5, which facilitates the staff to replenish HFC-227ea gas into the gas storage box 5;

[0036] like Figure 1 and Figure 3 As shown, the charging socket 4 has multiple charging sockets, so that the charging socket 4 can adapt to charging interfaces in different positions.

[0037] like Figure 1 and Figure 2 As shown, a handle is fixedly installed on the outer side wall of the cabinet door 3 to facilitate the user to open and close the cabinet door 3.

[0038] The specific implementation process of this embodiment is as follows: when in use, the user can open the cabinet door 3 by holding the handle, and put the battery to be charged into the cabinet box 2, and connect the battery charger to the charging socket 4 to start the battery charging operation, and then the user closes the cabinet door 3. During the battery charging period, if an unexpected accident causes the battery temperature to rise and catch fire, the temperature sensor 11 will detect the occurrence of high temperature, and then control the air supply valve 8 to open, so that the heptafluoropropane gas in the gas storage box 5 can enter the corresponding cabinet box 2 through the air duct 6 and the ventilation cavity 7, and at the same time start the exhaust fan 10, so that the heptafluoropropane gas can form an airflow under the action of the exhaust fan 10 , so that it can enter the interior of the rechargeable battery and achieve the fire extinguishing effect on the electrical components inside the rechargeable battery. When the amount of heptafluoropropane gas remaining in the gas tank 5 is small, the electric push rod 501 can drive the pressure plate 502 to move downward, so as to compress the remaining heptafluoropropane gas and force it into the air duct 6 to complete the fire extinguishing operation. The airtight rubber coating can ensure that the pressure plate 502 has a stable and efficient squeezing effect on the heptafluoropropane gas. At the same time, the user can grasp the air pressure changes in the gas tank 5 through the barometer, which is convenient for the staff to check the remaining gas reserves in the gas tank 5 and replenish the heptafluoropropane gas in time through the air replenishment valve 503 to keep it in a high-pressure state.

[0039] Second embodiment: The difference from the first embodiment is that the gas storage tank connected to the upper end of the cabinet 1 can be detachably installed in the middle part of the upper end of the cabinet 1. The gas storage tank can be removed and replaced after the gas is released, thereby improving the flexibility of the fire extinguishing material storage and replenishment operation of the explosion-proof cabinet.

[0040] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery charging explosion-proof cabinet, characterized by: The invention comprises a cabinet body (1), wherein a plurality of cabinet boxes (2) are provided in the cabinet body (1), wherein the cabinet boxes (2) are evenly distributed, and each cabinet box (2) is hinged with a cabinet door (3) on the outside, and a charging socket (4) is fixedly installed in the middle of the bottom end of the cabinet box (2), and a gas storage fire extinguishing device is fixedly installed in the middle of the upper end of the cabinet body (1), and an air duct (6) is provided in the middle of the cabinet body (1), and the gas storage fire extinguishing device is connected to the air duct (6), and a ventilation cavity (7) is provided on the side wall adjacent to the air duct (6) and the cabinet box (2), and an air supply valve (8) is plugged into the part of the cabinet box (2) that is connected to the ventilation cavity (7), and an exhaust window (9) is provided on the side wall corresponding to the air supply valve (8) in the cabinet body (1), and an exhaust fan (10) is installed in the exhaust window (9), and a temperature detector (11) is fixedly installed on the top of the cabinet box (2).

2. The battery charging explosion-proof cabinet according to claim 1, characterized in that: The gas storage fire extinguishing equipment contains heptafluoropropane gas.

3. The battery charging explosion-proof cabinet according to claim 2, characterized in that: The gas storage fire extinguishing device is a gas storage box (5) fixed to the upper end of the cabinet (1), an electric push rod (501) is fixedly installed on the top of the gas storage box (5), the movable end of the electric push rod (501) passes through the gas storage box (5) and extends into the gas storage box (5), the movable end of the electric push rod (501) is fixedly connected to a gas pressure plate (502), and the edge of the gas pressure plate (502) has an airtight rubber coating layer.

4. The battery charging explosion-proof cabinet according to claim 2, characterized in that: The gas storage fire extinguishing equipment is a gas storage tank that can be detachably connected to the upper end of the cabinet (1).

5. The battery charging explosion-proof cabinet according to claim 3, characterized in that: The temperature detector (11) is electrically connected to the air supply valve (8) and the electric push rod (501).

6. The battery charging explosion-proof cabinet according to claim 3, characterized in that: A barometer (504) is mounted on one side wall of the air storage box (5) via a slot, and a detection end of the barometer (504) is located inside the air storage box (5).

7. The battery charging explosion-proof cabinet according to claim 6, characterized in that: An air supply valve (503) is threadedly connected to the other side wall of the air storage box (5).

8. The battery charging explosion-proof cabinet according to claim 1, characterized in that: The charging socket (4) is provided with a plurality of charging sockets.

9. The battery charging explosion-proof cabinet according to claim 1, characterized in that: A handle is fixedly mounted on the outer side wall of the cabinet door (3).

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