Fire-fighting exhaust device for energy storage battery box

Abstract

The utility model relates to the technical field of energy storage battery boxes, in particular to an energy storage battery box fire-fighting exhaust device which comprises an air inlet device arranged on one side of a battery box and an air outlet device arranged on the other side of the battery box. The air inlet device comprises an air inlet electromagnetic valve, the air outlet device comprises an air outlet electromagnetic valve and an induced draft fan, and the air inlet electromagnetic valve, the air outlet electromagnetic valve and the induced draft fan are electrically connected and operate synchronously. The front end and the rear end of the battery box are respectively provided with an air inlet device and an air outlet device, and the air inlet device and the air outlet device are in a completely sealed state in a non-working state. Only when a set time node is reached, the battery box can be opened at the same time, and combustible gas in the box body is extracted out of the battery box by using an exhaust fan installed at an air outlet. The concentration of combustible gas in the energy storage box body can be effectively reduced, misoperation of a fire fighting system is avoided, fire fighting fault events are reduced, and the problem of misoperation of the fire fighting system caused by continuous accumulation of combustible gas for a long time can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage battery box technical field especially relates to a kind of energy storage battery box fire exhaust device. BACKGROUND

[0002] At present, the measures of energy storage battery box fire detection are generally installing gas detection module in battery box, when the gas concentration level collected by gas detection module reaches the alarm condition designed by fire protection system, fire protection device will start.

[0003] However, this mode has a problem that cannot be avoided, because battery box is sealed and air-tightness tested at the initial design stage, battery box is in complete sealing state. Battery box contains many accessories, heat insulation pad used in the middle of battery cell, heat-conducting structural adhesive used in the bottom of battery cell, and blue film of battery cell itself, etc. will generate a lot of flammable gas under long-term high temperature condition. Long-term accumulation of flammable gas will cause fire detection module to collect gas concentration to reach the starting condition of fire protection system, and further cause fire protection system to malfunction. SUMMARY

[0004] The utility model aims at providing a kind of energy storage battery box fire exhaust device, which can solve the technical problem of fire protection system malfunction caused by long-term accumulation of flammable gas.

[0005] To achieve the above-mentioned purpose, the utility model designs a kind of energy storage battery box fire exhaust device, which includes air inlet device arranged on one side of battery box, and air outlet device arranged on the other side of battery box.

[0006] The air inlet device includes air inlet solenoid valve, and the air outlet device includes air outlet solenoid valve and exhaust fan. The air inlet solenoid valve, air outlet solenoid valve and exhaust fan are electrically connected and synchronously operated.

[0007] As a preferred scheme, the air inlet solenoid valve is arranged on the outside of battery box body, and an air inlet is arranged on the air inlet solenoid valve. The air inlet, valve cavity of the air inlet solenoid valve and inner cavity of battery box are sequentially communicated.

[0008] As a preferred scheme, the air outlet solenoid valve is arranged on the outside of battery box body, and an air outlet is arranged on the air outlet solenoid valve. The exhaust fan is arranged on the inside of battery box body. The air outlet, valve cavity of the air outlet solenoid valve, inner cavity of exhaust fan and inner cavity of battery box are sequentially communicated.

[0009] As a preferred solution, the air inlet device further comprises a wind distribution plate arranged on the inner side of the battery box, and the wind distribution plate is provided with air vents in communication with the battery box inner cavity, the valve cavity of the air inlet electromagnetic valve and the air inlet respectively.

[0010] Further, the air vents are of a conical structure, and the conical bottom is towards the side of the exhaust fan.

[0011] As a preferred solution, the air inlet device further comprises a sealing gasket arranged between the air inlet electromagnetic valve and the side wall of the battery box, and the sealing gasket is provided with a ventilation hole in communication with the battery box inner cavity.

[0012] The utility model discloses a beneficial effect:

[0013] The utility model provides a kind of energy storage battery box fire exhaust device, and a set of air inlet device and air outlet device are respectively installed in the front and rear ends of battery box, and air inlet device and air outlet device are in complete sealing state under non-working state. Only when reaching the time node set, it can be opened simultaneously, and the combustible gas in the box is extracted from the battery box by the exhaust fan installed in the air outlet. The combustible gas concentration in the energy storage box can be effectively reduced, and the fire fighting system is avoided to malfunction, and the occurrence of fire fighting failure event is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional schematic view of the utility model.

[0015] Figure 2 It is the three-dimensional schematic view of the air inlet electromagnetic valve.

[0016] Figure 3 It is the three-dimensional schematic view of the wind distribution plate.

[0017] Figure 4 It is the three-dimensional schematic view of the exhaust fan.

[0018] Figure 5 It is the plane schematic view of the utility model.

[0019] BRIEF DESCRIPTION OF DRAWINGS:

[0020] Battery box 1, cell 2, air inlet electromagnetic valve 3, air outlet electromagnetic valve 4, exhaust fan 5, air inlet 6, air outlet 7, wind distribution plate 8, air vent 9, sealing gasket 10, ventilation hole 11, bolt 12. DETAILED DESCRIPTION

[0021] To make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model is further illustrated below by combining with the drawings and through specific implementation manners.It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limit the utility model.In addition, it needs to be explained that, for the convenience of description, only the parts related to the utility model are shown in the drawings, not all.

[0022] In the description of the utility model, it needs to be explained that, the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as limiting the utility model.In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.Among them, the terms "first position" and "second position" are two different positions.

[0023] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, also can be detachable connection;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements.The above-mentioned terms in the utility model can be understood according to specific circumstances by the person skilled in the art.

[0024] The utility model provides a kind of energy storage battery box fire exhaust device, using the regularly fire exhaust device arranged inside battery box, the concentration of combustible gas inside battery box is restored to normal level, avoid the misoperation of fire fighting system.

[0025] The utility model mainly aims at the problem that the combustible gas generated by other components in the energy storage battery box cannot be discharged after long time use, leading to the combustible gas concentration detected by the fire fighting system exceeding the standard.The combustible gas inside the battery box of the utility model is regularly discharged, avoiding the misoperation of fire fighting system.The combustible gas concentration inside the energy storage box can be effectively reduced, avoiding the misoperation of fire fighting system, reducing the occurrence of fire fighting failure event.

[0026] This utility model relates to a fire exhaust device for an energy storage battery box, including an air intake device disposed on one side of the battery box 1 and an air exhaust device disposed on the other side of the battery box 1; the air intake device includes an air intake solenoid valve 3, an air distribution plate 8, and a sealing gasket 10, and the air exhaust device includes an air exhaust solenoid valve 4 and an exhaust fan 5. The air intake solenoid valve 3, the air exhaust solenoid valve 4, and the exhaust fan 5 are electrically connected and operate synchronously.

[0027] The air intake solenoid valve 3 is located on the outside of the battery box. The air intake solenoid valve 3 has an air inlet 6, which is sequentially connected to the valve chamber of the air intake solenoid valve 3 and the inner cavity of the battery box 1. The air distribution plate 8 is located on the inside of the battery box. The air distribution plate 8 has ventilation openings 9, which are connected to the inner cavity of the battery box 1, the valve chamber of the air intake solenoid valve 3, and the air inlet 6. The function of the air distribution plate 9 is to distribute the air entering the box to each section of the box, ensuring gas exchange in all spaces inside the box. The ventilation opening 9 has a conical structure, with the bottom of the cone facing the exhaust fan 5. A conical ventilation opening is installed on the air distribution plate 8, and the air automatically disperses in all directions after passing through the conical structure. The sealing gasket 10 is located between the air intake solenoid valve 3 and the side wall of the battery box. The sealing gasket 10 has a vent hole 11 in the middle that communicates with the inner cavity of the battery box 1.

[0028] The solenoid valve 4 is located on the outside of the battery box, and the solenoid valve 4 is provided with an air outlet 7. The exhaust fan 5 is located on the inside of the battery box, and the air outlet 7 is connected in sequence to the valve chamber of the solenoid valve 4, the inner chamber of the exhaust fan 5, and the inner chamber of the battery box 1.

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0030] like Figure 1 The diagram shows the overall structure of the battery box. An air intake and an air exhaust system are installed at the front and rear ends of the battery box, respectively. When not in operation, the air intake and exhaust systems are completely sealed. They only open simultaneously at a set time, using an exhaust fan installed at the exhaust vent to extract flammable gases from inside the battery box. Figure 1 The direction indicated by the middle arrow is the airflow direction inside the battery compartment.

[0031] like Figure 2 As shown, the air inlet solenoid valve 3 and the air inlet on the air inlet side of the battery box 1 are connected by threads. The air inlet solenoid valve 3 and the sealing gasket 10 are fixed to the battery box body with bolts 12 to ensure structural strength and box sealing.

[0032] like Figure 3As shown, the air distribution plate is fixed to the housing using bolts 12 at the front end of the air inlet. The function of the air distribution plate 8 is to distribute the air entering the housing to each section inside the housing, ensuring gas exchange in all spaces inside the housing. Its working principle is that a conical structure is installed on the air distribution plate 8, and the air will automatically disperse in all directions after passing through the conical structure.

[0033] like Figure 4 As shown, the solenoid valve 4 on the air outlet side of the battery box 1 is connected to the air outlet using threads. The solenoid valve 4 is fixed to the battery box body using bolts 12 to ensure structural strength and box sealing. The exhaust fan 5 inside the battery box is fixedly connected to the box body using bolts 12.

[0034] The solenoid valves installed at the air inlet and outlet are connected to a 12V power supply, and the power supply is controlled by BMS signals. The exhaust fan inside the battery box is also connected to a 12V power supply. The power cords for the two solenoid valves and the exhaust fan are all connected together, and the three of them operate synchronously.

[0035] like Figure 5 The diagram shows the overall layout of battery box 1. Battery cells 2 are arranged inside the cavity of battery box 1, positioned precisely between the air inlet and outlet. The air inlet and outlet of battery box 1 operate according to a specific cycle, defined as T1, with a running time of T2. The BMS inside the battery box accumulates these cycles. Under normal conditions, when a running cycle reaches time T1, the BMS sends a signal to connect the solenoid valve to 12V. The solenoid valve opens, and the exhaust fan starts working to expel air from the inside of the box, allowing for air exchange between the inside and outside air. After running time T2, the BMS sends another signal to shut off the 12V power supply, ending the entire running cycle. Figure 5 The direction indicated by the middle arrow is the airflow direction inside the battery compartment.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fire exhaust device for an energy storage battery box, characterized in that: It includes an air intake device located on one side of the battery box (1) and an air outlet device located on the other side of the battery box (1); The air intake device includes an air intake solenoid valve (3), and the air outlet device includes an air outlet solenoid valve (4) and an exhaust fan (5). The air intake solenoid valve (3), the air outlet solenoid valve (4), and the exhaust fan (5) are electrically connected and operate synchronously.

2. The fire-fighting exhaust device for an energy storage battery box according to claim 1, characterized in that: The air intake solenoid valve (3) is located on the outside of the battery box. The air intake solenoid valve (3) is provided with an air inlet (6). The air inlet (6) is connected in sequence to the valve chamber of the air intake solenoid valve (3) and the inner cavity of the battery box (1).

3. The fire-fighting exhaust device for an energy storage battery box according to claim 1, characterized in that: The solenoid valve (4) is located on the outside of the battery box. The solenoid valve (4) has an air outlet (7). The exhaust fan (5) is located on the inside of the battery box. The air outlet (7) is connected in sequence to the valve chamber of the solenoid valve (4), the inner chamber of the exhaust fan (5), and the inner chamber of the battery box (1).

4. The fire-fighting exhaust device for an energy storage battery box according to claim 2, characterized in that: The air intake device also includes an air distribution plate (8), which is located inside the battery box. The air distribution plate (8) has ventilation openings (9), which are connected to the inner cavity of the battery box (1), the valve cavity of the air intake solenoid valve (3), and the air inlet (6).

5. A fire-fighting exhaust device for an energy storage battery box according to claim 4, characterized in that: The ventilation opening (9) has a conical structure with the bottom of the cone facing the exhaust fan (5).

6. A fire-fighting exhaust device for an energy storage battery box according to claim 5, characterized in that: The air intake device also includes a sealing gasket (10), which is disposed between the air intake solenoid valve (3) and the side wall of the battery box. The sealing gasket (10) has a vent hole (11) in the middle that communicates with the inner cavity of the battery box (1).

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