Explosion-proof tank with fire extinguishing water tank
By introducing a fire-extinguishing water tank and a dual protection mechanism into the explosion-proof enclosure, the problem that traditional explosion-proof enclosures cannot prevent fires in extreme situations is solved, achieving rapid fire extinguishing and equipment safety protection.
Patent Information
- Application Number
- CN202423102294.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Traditional explosion-proof boxes cannot completely prevent fires in extreme situations, especially when the battery is short-circuited internally or thermal runaway is caused by external environmental factors, in which case the electrical protection mechanism fails.
An explosion-proof box with a fire extinguishing water tank was designed, which includes a battery compartment, a charger compartment, a water tank, a drain valve, and an actuator box. Through a dual protection mechanism of temperature-sensitive glass beads and a hammer, it ensures that the drain valve will be opened automatically or actively when the temperature is high, so as to quickly extinguish the fire using the water in the tank.
It enables rapid cooling and fire suppression in the event of battery thermal runaway, improving the safety and reliability of the explosion-proof enclosure and ensuring the safety of equipment and batteries.
Smart Images

Figure CN223746873U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of explosion-proof boxes, in particular to an explosion-proof box with a fire extinguishing water tank. BACKGROUND
[0002] With the rapid development of new energy technology, the application scenarios of charging equipment are increasingly widespread, and more stringent requirements are placed on the safety of charging cabinets. A charging explosion-proof box is a safety device specially used for storing charging equipment and preventing fire or explosion accidents. It is usually used to store large-capacity batteries such as electric vehicles, electric bicycles, and mobile power supplies during charging to prevent fires or explosions caused by short circuits, overloads, overvoltages, and other problems during charging.
[0003] Traditional explosion-proof boxes mainly prevent battery fires through various electrical protection mechanisms. However, despite these protective measures, which reduce the probability of battery fires to some extent, there are still limitations. In some extreme situations, such as the instantaneous generation of a large amount of heat due to internal short circuits in the battery or the rapid development of battery thermal runaway due to external environmental factors, traditional electrical protection mechanisms cannot completely prevent fires. This project aims to develop an explosion-proof box with a fire extinguishing water tank to solve the above problems. CONTENT OF THE INVENTION
[0004] In view of at least one of the above technical problems, the present application provides an explosion-proof box with a fire extinguishing water tank, which adopts the following technical solutions to solve the problem that traditional electrical protection mechanisms cannot completely prevent fires when a large amount of heat is generated instantaneously due to internal short circuits in the battery or the rapid development of battery thermal runaway due to external environmental factors.
[0005] According to one aspect of the present application, an explosion-proof box with a fire extinguishing water tank is provided, comprising an explosion-proof box, further comprising:
[0006] a battery compartment arranged in the inner cavity of the explosion-proof box;
[0007] a charger compartment arranged above one side of the inner cavity of the explosion-proof box, and an aerogel fire extinguisher is arranged in the charger compartment;
[0008] a water tank arranged on the top of the explosion-proof box;
[0009] a drain valve arranged at the bottom of the water tank for connecting the explosion-proof box and the water tank, the drain valve being controlled to open by the triggering state of the temperature-sensitive glass beads;
[0010] an execution box, a hammer is arranged in the execution box, the position of the hammer corresponding to the position of the temperature-sensitive glass beads, and the hammer is controlled to hit by a rudder machine.
[0011] The application is further provided with a charger isolation plate arranged on the upper side of the inner cavity of the explosion-proof box, and the explosion-proof box is separated into a battery compartment and a charger compartment by the charger isolation plate.
[0012] The application is further provided with a sealed wire hole arranged on the charger isolation plate and connecting the battery compartment and the charger compartment.
[0013] One side of the charger compartment is provided with a waterproof wire cover arranged on the outer wall of the explosion-proof box.
[0014] The application is further provided with an aerogel fire extinguisher arranged on the top of the inner cavity of the charger compartment.
[0015] The application is further provided with a water tank hinged to the explosion-proof box on one side and connected to the explosion-proof box by a lock catch on the other side.
[0016] The application is further provided with a sealing strip arranged between the bottom of the water tank and the charger compartment.
[0017] The application is further provided with a power-assisted gas spring arranged inside the charger compartment and connecting the water tank and the explosion-proof box.
[0018] The application is further provided with an air inlet hole arranged on the top of the water tank.
[0019] The bottom of the battery compartment of the explosion-proof box is provided with a drain hole.
[0020] The application is further provided with a drain valve including a valve plate, a sealing gasket arranged between the valve plate and a through hole arranged on the bottom of the water tank, a valve door pressing catch arranged on the bottom of the side of the valve plate away from the hinged end, a temperature-sensitive glass bead arranged on the bottom of the valve door pressing catch, a jackscrew arranged on the bottom of the temperature-sensitive glass bead, a support fixedly connected to the jackscrew, and the support fixedly connected to the bottom of the water tank.
[0021] The application is further provided with an execution box including a hammer, a force storage spring arranged between the hammer and the sleeve, and the hammer slidingly arranged in the sleeve.
[0022] The sleeve is fixedly connected to the box body by a sleeve support.
[0023] One end of the hammer is hookingly connected to a trigger, the trigger is rotationally connected to the box body, a return spring is arranged on the side of the trigger and connected to the inner wall of the box body, a rudder is connected to one end of the trigger by a pull rope, and the rudder is fixedly arranged in the box body.
[0024] The bottom of the box body is provided with a smoke sensor and a temperature sensor.
[0025] The application has the following technical effects:
[0026] The water tank and the battery compartment of the application are communicated through a water drain valve, which can be opened by the trigger state of the temperature sensing glass bead at high temperature and can also be opened by the hammer in the execution box, double protection, ensuring the safety and reliability of the explosion-proof box, effectively protecting the safety of the equipment and the battery. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0028] Figure 1 is a perspective view of the present application;
[0029] Figure 2 is another perspective view in the present application;
[0030] Figure 3 is an internal structure view in the present application;
[0031] Figure 4 is a Figure 3 enlarged structure view at a in the above;
[0032] Figure 5 is an internal structure view of the execution box in the present application;
[0033] Figure 6 is another internal structure view of the execution box in the present application;
[0034] Figure 7 is a force storage spring structure view in the present application.
[0035] Reference signs:
[0036] 1, explosion-proof box; 11, charger compartment; 111, sealed wire hole; 112, waterproof wire cover; 113, aerogel fire extinguisher; 114, sealing strip; 115, charger isolation plate; 12, power-assisted gas spring; 13, drain hole; 14, battery compartment; 15, lock catch; 2, water tank; 21, air inlet hole; 3, execution box; 31, box body; 32, hammer; 33, sleeve; 34, rudder; 35, pull rope; 36, trigger; 37, return spring; 38, smoke sensor; 39, temperature sensor; 310, sleeve support; 311, force storage spring; 4, water drain valve; 41, valve plate; 42, gasket; 43, valve pressure catch; 44, temperature sensing glass bead; 45, support; 46, jackscrew. DETAILED DESCRIPTION
[0037] Please refer toFigures 1 to 7 It is to be understood that the structures, proportions, sizes, etc. shown in the drawings accompanying the present specification are merely intended to facilitate the understanding of the present disclosure for those skilled in the art, and are not intended to limit the conditions under which the present application can be implemented, and therefore do not have technical significance. Any modification of structure, change of proportional relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, shall still fall within the scope of the present disclosure.
[0038] First, the design intention of the present application is explained: the traditional explosion-proof box mainly prevents battery fire through various electrical protection mechanisms. However, although such protection measures can reduce the probability of battery fire to a certain extent, there are still limitations. In some extreme cases, such as a large amount of heat generated by internal short circuit of the battery or rapid development of battery thermal runaway due to external environmental factors, the traditional electrical protection mechanism may not be able to completely prevent the occurrence of fire.
[0039] To make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below. In the following description, a large number of specific details are set forth in order to fully understand the present application.
[0040] Embodiment one
[0041] In this embodiment of the present application, as shown in Figures 1 to 7 , a explosion-proof box with fire extinguishing water tank is provided, including explosion-proof box 1, further comprising:
[0042] Battery compartment 14 is arranged in the inner cavity of explosion-proof box 1;
[0043] Charger compartment 11 is arranged on the upper side of the inner cavity of explosion-proof box 1, and aerogel fire extinguisher 113 is arranged in charger compartment 11;
[0044] Water tank 2 is arranged on the top of explosion-proof box 1;
[0045] Drain valve 4 is arranged at the bottom of water tank 2, used for connecting explosion-proof box 1 and water tank 2, and drain valve 4 is controlled to open by the triggering state of temperature sensing glass bead 44;
[0046] Execution box 3 is arranged in execution box 3, and hammer 32 is arranged in execution box 3. The position of hammer 32 corresponds to the position of temperature sensing glass bead 44, and hammer 32 is controlled to hit by rudder 34.
[0047] The inner cavity of the explosion-proof box 1 is divided into two independent spaces, one of which is the battery compartment 14, and the other is the charger compartment 11, so that when the battery and the charger have problems separately, they do not affect each other, and the aero-gel fire extinguisher 113 and the water tank 2 can target the fire extinguishing of the charger compartment 11 and the battery compartment 14 respectively, making the entire explosion-proof box 1 safer, and the water tank 2 is communicated with the battery compartment 14 through the water release valve 4, which can be opened by the trigger state of the temperature-sensitive glass beads 44 itself at high temperature, or can be actively driven to open by the hammer 32 in the execution box 3, double protection, ensuring that the water release valve 4 can be stably opened when the battery compartment 14 is out of control, so that the entire tank of water in the water tank 2 can quickly flood the battery, quickly extinguish the fire by cooling, and ensure the safety and reliability of the explosion-proof box 1 during use, effectively protecting the safety of the equipment and the battery.
[0048] In order to realize the isolation of the battery compartment 14 and the charger compartment 11, the charger isolation plate 115 is arranged on the upper side of the inner cavity of the explosion-proof box 1, and the explosion-proof box 1 is separated into the relatively independent battery compartment 14 and the charger compartment 11 by the charger isolation plate 115.
[0049] In order to further isolate the battery compartment 14 and the charger compartment 11, the battery compartment 14 and the charger compartment 11 are connected through the sealed wire passing hole 111, which is arranged on the charger isolation plate 115.
[0050] One side of the charger compartment 11 is provided with a waterproof wire passing cover 112, which is arranged on the outer wall of the explosion-proof box 1; the sealed wire passing hole 111 provides a safe channel for the electrical lines inside the equipment, so that the wires can be connected from the battery compartment 14 to the charger compartment 11. In the event of an accident such as battery fire in the equipment, the sealed wire passing hole 111 can act as a fire barrier, which can prevent the flame from spreading to other areas of the equipment through the wire channel. When the battery inside the equipment fails and produces gas, the sealed wire passing hole 111 can balance the internal pressure, allowing the appropriate amount of gas to be released slowly, avoiding the explosion caused by the rapid rise of internal pressure.
[0051] In order to make the charger compartment 11 have independent fire extinguishing capability, the aero-gel fire extinguisher 113 is arranged on the top of the inner cavity of the charger compartment 11, which can trigger the aero-gel fire extinguisher 113 to extinguish the fire when the charger compartment 11 is on fire and produces high temperature, effectively preventing the spread of fire and protecting the safety of the equipment and the surrounding environment.
[0052] In order to make the device easy to operate as a whole, one side of the water tank 2 is hinged to the explosion-proof box 1, and the other side of the water tank 2 is connected to the explosion-proof box 1 through the lock catch 15, which makes the water tank 2 able to be opened by turning up.
[0053] In order to prevent the water in the battery compartment 14 from entering the charger compartment 11 when the fire is extinguished, the bottom of the water tank 2 is sealed and connected to the charger compartment 11 by a sealing strip 114, which improves the sealing of the charger compartment 11.
[0054] In order to facilitate the operation and maintenance of the device as a whole, a booster spring 12 is also connected between the water tank 2 and the explosion-proof box 1, and the booster spring 12 is arranged inside the charger compartment 11; when the water tank 2 is turned open, the booster spring 12 can provide a boost to save more effort.
[0055] In order to provide the speed of water flow in the water tank 2, the top of the water tank 2 is provided with an air inlet hole 21.
[0056] In order to improve the effect of extinguishing the fire inside the battery compartment 14, the bottom of the battery compartment 14 of the explosion-proof box 1 is provided with a drain hole 13, and the water in the water tank 2 can continuously flow out of the drain hole 13 in the fire extinguishing state, thereby forming flowing water cooling, and the cooling effect is better.
[0057] Embodiment two
[0058] Reference Figure 3 Figure 4 This embodiment two is a further improvement based on embodiment one, in order to realize that the temperature sensing glass bead 44 in the trigger state, that is, the broken state, can stably open the drain valve 4, the drain valve 4 includes a valve plate 41, the valve plate 41 is sealingly connected to the through hole provided at the bottom of the water tank 2 through a sealing gasket 42, the valve plate 41 is hinged to the bottom of the water tank 2, and a valve door buckle 43 is provided at the bottom of the side of the valve plate 41 away from the hinged end, the bottom of the valve door buckle 43 is provided with a temperature sensing glass bead 44, the bottom of the temperature sensing glass bead 44 is provided with a jackscrew 46, the jackscrew 46 is fixedly connected to a bracket 45, and the bracket 45 is fixedly connected to the bottom of the water tank 2.
[0059] When the temperature sensing glass bead 44 reaches the temperature threshold, it will burst, the valve door buckle 43 loses support, and at the same time the valve plate 41 loses support, under the water pressure of the upper water tank 2, the valve plate 41 will be rushed open downward, so that the water in the water tank 2 rapidly flows into the battery compartment 14, and the battery compartment 14 is cooled and extinguished.
[0060] Embodiment three
[0061] Reference Figure 5 Figure 6 This embodiment three is a further improvement based on embodiment one, in order to realize that the hammer 32 can actively make a hitting action under the control of the rudder 34, the execution box 3 includes a hammer 32, the hammer 32 is slidingly arranged in a sleeve 33, and a force storage spring 311 is connected between the hammer 32 and the sleeve 33.
[0062] The sleeve 33 is fixedly connected to the box body 31 by a sleeve bracket 310.
[0063] One end of the hammer 32 is hookingly connected with a trigger 36, the trigger 36 is rotationally connected to the box body 31, and one side of the trigger 36 is connected with a reset spring 37 on the inner wall of the box body 31, one end of the trigger 36 is connected with a rudder 34 through a pull rope 35, and the rudder 34 is fixedly arranged in the box body 31;
[0064] The bottom of the box body 31 is provided with a smoke sensor 38 and a temperature sensor 39.
[0065] When the battery in the battery compartment 14 has a problem, causing the temperature in the battery compartment 14 to rise to a set temperature, or smoke occurs, it will be detected by the temperature sensor 39 and the smoke sensor 38, and the controller drives the rudder 34 to work, the rudder 34 is started to pull the trigger 36 through the pull rope 35, the trigger 36 rotates in the box body 31, so that one end of the trigger 36 is disengaged from the hooking state with the hammer 32, the hammer 32 has the potential energy to rush out of the box body 31 under the action of the force storage spring 311, and under the limiting action of the sleeve 33, it is stably rushed to the direction of the temperature sensing glass bead 44, realizing the beating of the temperature sensing glass bead 44, so that the temperature sensing glass bead 44 is broken.
[0066] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present application, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of the present application. Therefore, any equivalent changes made according to the shape, structure and principle of the present application, without departing from the technical solution of the present application, should be covered by the protection scope of the present application.
Claims
1. An explosion-proof tank with a fire extinguishing water tank, comprising an explosion-proof tank (1), characterized in that, Also include: Battery compartment (14) is arranged in the inner cavity of the explosion-proof box (1); Charger compartment (11) is arranged on one side of the inner cavity of the explosion-proof box (1), and the aerogel fire extinguisher (113) is arranged in the charger compartment (11); Water tank (2) is arranged on the top of the explosion-proof box (1); Drain valve (4) is arranged at the bottom of the water tank (2), which is used for connecting the explosion-proof box (1) and the water tank (2), and the opening of the drain valve (4) is controlled by the trigger state of the temperature sensing glass bead (44); The execution box (3) is provided with a hammer (32), and the position of the hammer (32) corresponds to the position of the temperature sensing glass bead (44). The hammer (32) is controlled to hit by the rudder (34).
2. The explosion-proof box with fire extinguishing water tank according to claim 1, characterized in that: The explosion-proof box (1) is provided with a charger isolation plate (115) on one side of the inner cavity, and the explosion-proof box (1) is separated into relatively independent battery compartment (14) and charger compartment (11) by the charger isolation plate (115).
3. The explosion-proof box with fire extinguishing water tank according to claim 2, characterized in that: The battery compartment (14) and the charger compartment (11) are connected through the sealing wire hole (111), and the sealing wire hole (111) is arranged on the charger isolation plate (115); The side of the charger compartment (11) is provided with a waterproof wire cover (112), and the waterproof wire cover (112) is arranged on the outer wall of the explosion-proof box (1).
4. The explosion-proof box with fire extinguishing water tank according to claim 3, characterized in that: The top of the inner cavity of the charger compartment (11) is provided with an aerogel fire extinguisher (113).
5. The explosion-proof box with fire extinguishing water tank according to claim 4, characterized in that: One side of the water tank (2) is hinged with the explosion-proof box (1), and the other side of the water tank (2) is connected with the explosion-proof box (1) through the lock buckle (15).
6. The explosion-proof box with fire extinguishing water tank according to claim 5, characterized in that: The bottom of the water tank (2) and the charger compartment (11) are sealingly connected through the sealing strip (114).
7. The explosion-proof box with fire extinguishing water tank according to claim 6, characterized in that: The water tank (2) and the explosion-proof box (1) are also connected with the booster gas spring (12), and the booster gas spring (12) is arranged in the charger compartment (11).
8. The explosion-proof box with fire extinguishing water tank according to claim 7, characterized in that: The top of the water tank (2) is provided with an air inlet hole (21); The bottom of the battery compartment (14) of the explosion-proof box (1) is provided with a drain hole (13).
9. The explosion-proof box with fire extinguishing water tank according to claim 1, characterized in that: The drain valve (4) includes a valve plate (41), and the valve plate (41) and the through hole arranged at the bottom of the water tank (2) are sealingly connected through a sealing gasket (42). The valve plate (41) is hinged to the bottom of the water tank (2), and the bottom of the side away from the hinged end of the valve plate (41) is supported and arranged with a valve door pressing buckle (43). The bottom of the valve door pressing buckle (43) is supported and arranged with a temperature sensing glass bead (44), the bottom of the temperature sensing glass bead (44) is provided with a jackscrew (46), the jackscrew (46) is fixedly connected with a bracket (45), and the bracket (45) is fixedly connected with the bottom of the water tank (2).
10. The explosion-proof box with fire extinguishing water tank according to claim 1, characterized in that: The execution box (3) includes a hammer (32), the hammer (32) is slidingly arranged in a sleeve (33), and a force storage spring (311) is connected between the hammer (32) and the sleeve (33). The sleeve (33) is fixedly connected to the box body (31) through a sleeve support (310). One end of the hammer (32) is hook-connected with a trigger (36), the trigger (36) is rotationally connected with the box body (31), and one side of the trigger (36) is connected with a reset spring (37) with the inner wall of the box body (31), one end of the trigger (36) is connected with a rudder (34) through a pull rope (35), and the rudder (34) is fixedly arranged in the box body (31); The bottom of the box body (31) is provided with a smoke sensor (38) and a temperature sensor (39).