Battery explosion-proof cabinet

Abstract

The utility model discloses a battery explosion-proof cabinet, and relates to the field of battery safety and explosion prevention. The battery storage chamber is arranged in the cabinet body, the battery storage chamber comprises a flame-retardant material cabin, the flame-retardant material cabin comprises a plurality of chambers for loading different chemicals, an expansion cabin is arranged at the bottom of the flame-retardant material cabin, and partition units are arranged between the chambers of the flame-retardant material cabin and between the flame-retardant material cabin and the expansion cabin. The partition unit deforms, chemical substances in all chambers of the flame-retardant substance cabin are in contact and react to generate flame-retardant substances, and the flame-retardant substances are expanded through the expansion cabin and sprayed out; and the gas collection assembly is used for storing gas in the battery storage chamber of the cabinet body. When the air pressure or temperature in the battery storage chamber of the cabinet body is too high, the partition unit deforms, the flame-retardant substance cabin is communicated with the expansion cabin, chemicals in the flame-retardant substance cabin and the expansion cabin generate flame-retardant substances which are sprayed to the battery, and the gas collection assembly stores harmful gas generated by combustion of the battery, so that the safety of workers is ensured.

Description

Technical Field

[0001] The utility model relates to the field of battery safety explosion prevention, and particularly relates to a battery explosion-proof cabinet. Background Art

[0002] When an unexpected chemical reaction occurs between the internal components of a battery or abnormal phenomena such as short circuit and overheating occur inside the battery, the battery may cause phenomena such as liquid leakage, bulging, and deformation. During the detection process, if such a situation is found, the battery needs to be disassembled to investigate the cause. However, when the number of batteries to be disassembled is large, some batteries may need to queue and may not be disassembled immediately. The abnormal battery itself has a certain degree of danger and may burn or even explode at any time. If it is directly placed in the external environment and catches fire during the waiting for disassembly, a large amount of harmful gases will be released, posing a great safety hazard to the experimental personnel. Summary of the Utility Model

[0003] This application provides a battery explosion-proof cabinet, which can solve the technical problems existing in the prior art that abnormal batteries cannot be reasonably stored during the queuing process for disassembly, and the batteries are prone to burning or explosion, posing a great safety hazard to the experimental personnel and the test site.

[0004] An embodiment of this application provides a battery explosion-proof cabinet, including:

[0005] A cabinet body; and a battery storage chamber provided in the cabinet body, the battery storage chamber including:

[0006] A flame retardant substance compartment, which includes a plurality of chambers for loading different chemicals. An expansion chamber is provided at the bottom of the flame retardant substance compartment. Partition units are provided between the chambers of the flame retardant substance compartment and between the flame retardant substance compartment and the expansion chamber. When the temperature or air pressure in the battery storage chamber of the cabinet body is too high, the partition units are deformed, so that the chemicals in the chambers of the flame retardant substance compartment come into contact and react to generate a flame retardant substance, which expands and sprays out through the expansion chamber;

[0007] A gas collection assembly for storing the gas in the battery storage chamber of the cabinet body.

[0008] In one embodiment, a plurality of the battery storage chambers are provided in the cabinet body.

[0009] In one embodiment, the flame retardant substance compartment includes a first chamber and a second chamber arranged in parallel. An aluminum sulfate solution is stored in the first chamber, and a sodium bicarbonate solution is stored in the second chamber.

[0010] In one embodiment, a foaming agent is provided in the expansion chamber and a nozzle is provided at the bottom of the expansion chamber.

[0011] In one embodiment, the partition unit includes a partition sheet located between the first chamber and the second chamber, a shape memory metal sheet and a thin film pressure sensor that are both connected to the partition sheet and extend out of the flame retardant substance chamber.

[0012] In one embodiment, the upper part of the partition sheet is located between the first chamber and the second chamber, and the bottom of the partition sheet is located in the expansion chamber.

[0013] In one embodiment, the gas collection assembly includes a placement bin that penetrates up and down. Both the top and the bottom of the placement bin are provided with openings, and the battery storage chamber of the cabinet body is provided with a second opening opposite to the top opening of the placement bin.

[0014] In one embodiment, a sealing film is provided on the second opening.

[0015] In one embodiment, a gas collection bag is provided in the placement bin. The inflow end of the gas collection bag is the bottom opening of the placement bin, and a one-way valve is provided at the inflow end.

[0016] In one embodiment, a temperature alarm unit is provided in the cabinet body.

[0017] The beneficial effects brought by the technical solutions provided by the embodiments of the present application include:

[0018] By providing a flame retardant substance chamber and an expansion chamber that are filled with different chemical substances and separated by a partition unit, and utilizing the increase in temperature and air pressure caused by the battery combustion, the partition unit is deformed, and the flame retardant substance is automatically sprayed onto the battery surface after the reaction, which can isolate oxygen and prevent the battery from further exploding. By providing a gas collection assembly, the harmful gases generated by the battery combustion can be stored, which can not only ensure the safety of the staff and prevent accidental inhalation when opening the cabinet, but also avoid direct discharge of harmful gases into the atmosphere and causing pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of a battery explosion-proof cabinet provided by an embodiment of the present application;

[0021] Figure 2 It is a schematic structural diagram of a flame retardant substance chamber and a partition unit in a battery explosion-proof cabinet provided by an embodiment of the present application;

[0022] Figure 3 Schematic structural diagram of a gas collection component in a battery explosion-proof cabinet provided by an embodiment of the present application.

[0023] In the figure: 1. Cabinet body; 101. Second opening; 102. Explosion-proof cabinet door; 103. Sealing film; 2. Flame retardant substance chamber; 201. First chamber; 202. Second chamber; 203. Expansion chamber; 204. Nozzle; 3. Partition unit; 301. Film pressure sensor; 302. Heat memory metal sheet; 303. Partition sheet; 4. Gas collection component; 401. Placement bin; 402. Gas collection bag; 403. Check valve; 5. Temperature alarm unit. Specific implementation manners

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0025] The embodiment of the present application provides a battery explosion-proof cabinet, which can solve the technical problem in the prior art that during the process of abnormal batteries queuing for disassembly, they cannot be reasonably stored, and the batteries are prone to combustion or explosion, which will pose a great safety hazard to experimental personnel and test sites.

[0026] Figure 1 Schematic structural diagram of a battery explosion-proof cabinet provided by an embodiment of the present application, as Figure 1 shown, the battery explosion-proof cabinet in the present application includes a cabinet body 1; and a battery storage chamber provided in the cabinet body 1. The battery storage chamber includes: a flame retardant substance chamber 2 and a gas collection component 4. When the battery burns, open flames and a large amount of harmful gases will be generated. The flame retardant substance chamber 2 can isolate the battery from the air in the cabinet body 1 to prevent the fire from spreading further, and the gas collection component 4 can store the harmful gases generated by the battery combustion, which can not only ensure the safety of the staff and prevent accidental inhalation when opening the cabinet, but also avoid direct discharge of harmful gases into the atmosphere causing pollution.

[0027] Specifically, the flame retardant substance chamber 2 includes multiple chambers filled with different chemicals. An expansion chamber 203 is provided at the bottom of the flame retardant substance chamber 2. Partition units 3 are provided between the chambers of the flame retardant substance chamber 2 and between the flame retardant substance chamber 2 and the expansion chamber 203. When the temperature or air pressure in the cabinet body 1 is too high, the partition unit 3 deforms, so that the chemicals in each chamber of the flame retardant substance chamber 2 contact and react to generate a flame retardant substance, and the flame retardant substance expands and sprays out through the expansion chamber 203;

[0028] The battery storage chamber of the cabinet body 1 is fully enclosed, and the abnormal batteries are stored in the battery storage chamber of the cabinet body 1. An explosion-proof cabinet door 102 is provided on the cabinet body 1. Under normal circumstances, each chamber of the flame retardant substance chamber 2, as well as between the expansion chamber 203 and the flame retardant substance chamber 2, are separated by a partition unit 3, and different types of chemical substances are placed in multiple chambers and the expansion chamber 203 respectively. When the battery in the cabinet body 1 catches fire, the temperature inside the cabinet body 1 rises, and at the same time, a large amount of carbon dioxide generated by the battery combustion will also increase the air pressure inside the cabinet body 1. At this time, the partition unit 3 deforms under the influence of temperature or pressure, and the chemical substances between the multiple chambers of the flame retardant substance chamber 2 begin to fuse with each other and generate a chemical reaction to form a flame retardant, and finally react with the substances in the expansion chamber 203 to expand, and then be sprayed onto the battery surface to complete the flame retardant work.

[0029] Under normal conditions, the gas collection component 4 is in a compressed state and is located in the battery storage chamber of the cabinet body 1. When the battery explodes and burns, when harmful gases are generated and the air pressure is too high in the battery storage chamber of the cabinet body 1, the gas collection component 4 is pressed by the air pressure and pops out of the battery storage chamber of the cabinet body 1 and is in a stretched state, but still communicates with the internal space of the battery storage chamber of the cabinet body 1. At this time, the harmful gases generated by the battery combustion in the battery storage chamber of the cabinet body 1 flow into the gas collection component 4. After there is no risk in the battery storage chamber of the cabinet body 1, the staff then opens the explosion-proof cabinet door 102 to carry out the follow-up work.

[0030] As an optional embodiment, multiple battery storage chambers are provided in the cabinet body 1. A single layer or multiple layers of partitions can be provided in the cabinet body 1 to form multiple battery storage chambers for placing multiple abnormal batteries, and a flame retardant substance chamber 2 and a gas collection component 4 are independently provided in each battery storage chamber.

[0031] Specifically, Figure 2 is a schematic structural diagram of a flame retardant substance chamber 2 and a partition unit 3 provided in an embodiment of the present application. As Figure 2 shown, the flame retardant substance chamber 2 includes a first chamber 201 and a second chamber 202 arranged in parallel. The first chamber 201 and the second chamber 202 are both located at the top of the battery storage chamber of the cabinet body 1, and the battery is placed below the flame retardant substance chamber 2. An aluminum sulfate solution is stored in the first chamber 201, and a sodium bicarbonate solution is stored in the second chamber 202. When the partition unit 3 deforms, a large amount of carbon dioxide will be generated when the aluminum sulfate contacts the sodium bicarbonate solution. A foaming agent is provided in the expansion chamber 203 and a nozzle 204 is provided at the bottom of the expansion chamber 203. The carbon dioxide is mixed with the foaming agent and sprayed onto the surface of the abnormal battery through the nozzle 204 to isolate the contact between the battery and oxygen and complete the flame retardant work.

[0032] It should be noted that the above-mentioned foaming agent is a conventional foaming agent in the art, and the present application does not make further limitations.

[0033] Furthermore, the partition unit 3 includes a partition sheet 303 located between the first chamber 201 and the second chamber 202 , and a thermal memory metal sheet 302 and a thin film pressure sensor 301 both connected to the partition sheet 303 and extending out of the flame retardant material compartment 2 .

[0034] Under normal circumstances, the upper part of the partition sheet 303 is located between the first chamber 201 and the second chamber 202, and the bottom of the partition sheet 303 is located in the expansion chamber 203, so as to realize the separation state between the two chambers of the flame retardant material chamber 2 and the expansion chamber 203. The thermal memory metal sheet 302 and the film pressure sensor 301 are connected to the partition sheet 303, and the thermal memory metal sheet 302 and the film pressure sensor 301 are located on the top of the flame retardant material chamber 2 and exposed to the internal environment of the cabinet. When the temperature in the battery storage chamber of the cabinet 1 is too high, the thermal memory The metal sheet 302 will be deformed, driving the partition sheet 303 to move upward, and the bottom of the partition sheet 303 will be separated from the expansion chamber 203. At this point, the first chamber 201, the second chamber 202 and the expansion chamber 203 are connected, triggering subsequent chemical reactions. Similarly, when the air pressure in the battery storage chamber of the cabinet 1 is too high, the film pressure sensor 301 senses the pressure change and becomes deformed, which will also drive the partition sheet 303 to move upward, and the first chamber 201, the second chamber 202 and the expansion chamber 203 are connected, triggering subsequent chemical reactions.

[0035] In the present application, the partition sheet 303 can be one piece, and the thermal memory metal sheet 302 and the thin film pressure sensor 301 are connected to the same partition sheet 303. As an optional embodiment, the partition sheet 303 is two pieces, and the two partition sheets 303 are arranged in parallel along the width direction of the flame retardant material compartment 2, and are respectively connected to the thermal memory metal sheet 302 and the thin film pressure sensor 301. The thermal memory metal sheet 302 and the thin film pressure sensor 301 are also arranged in parallel along the width direction of the flame retardant material compartment 2.

[0036] Furthermore, Figure 3 A schematic diagram of the structure of a gas collection component 4 in a battery explosion-proof cabinet provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the gas collection component 4 includes a storage bin 401 that is connected from top to bottom, and openings are set on the top and bottom of the storage bin 401. The battery storage chamber of the cabinet 1 is provided with a second opening 101 opposite to the top opening of the storage bin 401, and a closed film 103 is provided on the second opening 101; a gas collection bag 402 is provided in the storage bin 401, and the inlet end of the gas collection bag 402 is the bottom opening of the storage bin 401, and a one-way valve 403 is provided at the inlet end.

[0037] The gas collection bag 402 is detachably arranged in the placement bin 401. The opening at the bottom of the placement bin 401 also serves as the inlet of the gas collection bag 402. Under normal circumstances, the gas collection bag 402 is stored in the placement bin 401. When the battery explodes and burns, and harmful gases are generated and the air pressure rises in the battery storage chamber of the cabinet body 1, the harmful gases will flow into the gas collection bag 402 through the inlet. The pressure will push the gas collection bag 402 towards the second opening 101, and finally break through the two-layer sealing film 103. The bag body of the gas collection bag 402 will pop out of the battery storage chamber of the cabinet body 1. Subsequently, the one-way valve 403 starts to work to prevent gas from flowing back. The gas collection bag 402 can not only prevent harmful gases from being inhaled by the staff when the explosion-proof cabinet door 102 is opened, but also avoid the direct discharge of harmful gases into the atmosphere causing pollution. After there is no risk in the battery storage chamber of the cabinet body 1, the gas collection bag 402 is disassembled and taken to the fume hood for treatment.

[0038] Furthermore, a temperature alarm unit 5 is arranged in the cabinet body 1. The temperature alarm unit 5 includes a temperature sensor and an alarm device electrically connected to the temperature sensor. The alarm temperature threshold is set in advance. When the temperature in the battery storage chamber of the cabinet body 1 reaches the alarm threshold, the alarm will give a reminder. The temperature alarm unit 5 is a commonly used component in the prior art and will not be elaborated here. As an optional embodiment, in the present application, the alarm threshold of the temperature alarm unit 5 is 50°.

[0039] The action mechanism of the battery explosion-proof cabinet in the present application is as follows: Corresponding chemical substances are placed in the flame retardant substance chamber 2 and the expansion chamber 203 respectively. When the battery in the battery storage chamber of the cabinet body 1 starts to burn, the temperature and air pressure in the battery storage chamber of the cabinet body 1 will rise rapidly. At this time, the thin film pressure sensor 301 or the thermal memory metal sheet 302 will deform. The first chamber 201, the second chamber 202 and the expansion chamber 203 are connected. The three flame retardant chemical substances come into contact and react successively, and are sprayed on the surface of the burning battery through the nozzle 204. At the same time, the excessive air pressure will force the harmful gases to flow to the gas collection bag 402, causing the gas collection bag 402 to break through the sealing film 103 and pop out of the battery storage chamber of the cabinet body 1. The one-way valve 403 will prevent the gas from flowing back. The temperature alarm unit 5 will also work synchronously to prompt the burning situation in the battery storage chamber of the cabinet body 1. Finally, after the environment is stable, the gas collection bag 402 is disassembled and taken to the fume hood for treatment.

[0040] In the battery explosion-proof cabinet of the present application, the temperature and air pressure increase caused by the combustion of the battery cause the partition unit 3 to deform, and the flame-retardant substance automatically sprays onto the surface of the battery after reaction, which can isolate oxygen and prevent the battery from further exploding. By setting up the gas collection bag 402, harmful gases generated by the combustion of the battery can be stored, which can not only ensure the safety of the staff and prevent accidental inhalation when opening the cabinet, but also avoid direct discharge of harmful gases into the atmosphere causing pollution.

[0041] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0042] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0043] The above description is only the specific implementation manners of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A battery explosion-proof cabinet, characterized in that, Comprising: Cabinet body (1); And a battery storage chamber provided in the cabinet body (1), the battery storage chamber comprising: A flame retardant substance compartment (2), which includes a plurality of chambers for loading different chemicals. An expansion chamber (203) is provided at the bottom of the flame retardant substance compartment (2). Partition units (3) are provided between the chambers of the flame retardant substance compartment (2) and between the flame retardant substance compartment (2) and the expansion chamber (203). When the temperature or air pressure in the battery storage chamber of the cabinet body (1) is too high, the partition unit (3) deforms, so that the chemicals in the chambers of the flame retardant substance compartment (2) come into contact and react to generate a flame retardant substance, which expands and ejects through the expansion chamber (203); A gas collection assembly (4) for storing the gas in the battery storage chamber of the cabinet body (1).

2. The battery explosion-proof cabinet according to claim 1, characterized in that, A plurality of the battery storage chambers are provided in the cabinet body (1).

3. A battery explosion-proof cabinet according to claim 1, characterized in that, The flame retardant substance compartment (2) includes a first chamber (201) and a second chamber (202) arranged in parallel. An aluminum sulfate solution is stored in the first chamber (201), and a sodium bicarbonate solution is stored in the second chamber (202).

4. A battery explosion-proof cabinet according to claim 3, characterized in that, A foaming agent is provided in the expansion chamber (203), and a nozzle (204) is provided at the bottom of the expansion chamber (203).

5. The explosion-proof cabinet for a battery according to claim 3, wherein The partition unit (3) includes a partition piece (303) located between the first chamber (201) and the second chamber (202), and a shape memory metal piece (302) and a thin film pressure sensor (301) that are both connected to the partition piece (303) and extend outside the flame retardant substance compartment (2).

6. The battery explosion-proof cabinet according to claim 5, wherein, The upper part of the partition piece (303) is located between the first chamber (201) and the second chamber (202), and the bottom of the partition piece (303) is located in the expansion chamber (203).

7. The explosion-proof cabinet for battery according to claim 1, characterized in that, The gas collection assembly (4) includes a placement bin (401) that is vertically through. Openings are provided at the top and bottom of the placement bin (401). A second opening (101) opposite to the top opening of the placement bin (401) is provided on the battery storage chamber of the cabinet body (1).

8. A battery explosion-proof cabinet according to claim 7, characterized in that, A sealing film (103) is provided on the second opening (101).

9. The explosion-proof cabinet for a battery according to claim 7, wherein, A gas collection bag (402) is provided in the placement bin (401). The inflow end of the gas collection bag (402) is the bottom opening of the placement bin (401), and a one-way valve (403) is provided at the inflow end.

10. A battery explosion-proof cabinet according to claim 1, characterized in that, A temperature alarm unit (5) is provided in the cabinet body (1).

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