Explosion-proof detector and battery compartment comprising same

Abstract

An explosion-proof detector and a battery compartment comprising same. The explosion-proof detector (100) is configured to measure the concentrations of gases in an explosive environment; the explosion-proof detector (100) comprises a housing (11), a measurement member (12), and an integration member (13); both the measurement member (12) and the integration member (13) are arranged inside the housing (11); the measurement member (12) is arranged close to an inlet end of the housing (11); the measurement member (12) is provided with a sensor (121) capable of measuring the concentrations of at least two combustible gases, and is configured to measure the concentrations of at least two combustible gases entering the housing (11); and the integration member (13) is electrically connected to the measurement member (12), and is configured to integrate concentration information of the combustible gases measured by the measurement member (12), and transmit the concentration information of the combustible gases to a controller (300).

Description

Explosion-proof detector and battery compartment comprising same

[0001] This application claims priority to the Chinese patent application No. 202411256564.1 filed on September 09, 2024 with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of fire prevention and control, for example to an explosion-proof detector and a battery compartment comprising same. BACKGROUND

[0003] In order to accurately monitor and determine whether a container is in danger of fire, a fire detector for energy storage power stations needs to be installed to detect smoke, temperature, carbon monoxide CO, hydrogen H2, volatile organic compounds (VOC) and other gases generated when lithium batteries in the container are in thermal runaway, and to determine whether there is a fire in the container by comprehensively collecting information on multiple suspicious items, and then report to the fire control system for fire alarm, fire extinguishing and other disposal.

[0004] In order to use these detectors more safely, the detectors themselves are often required to have explosion-proof properties. Since the operation of the detector itself requires a certain amount of current to support, intrinsically safe explosion-proof detectors are difficult to meet the requirements of the cabin, which requires the detector to be explosion-proof, i.e. to be designed as an explosion-proof detector. SUMMARY

[0005] The present application provides an explosion-proof detector for detecting the concentration of gas in the environment where the explosion-proof detector is located to ensure the safety of the environment where the explosion-proof detector is located.

[0006] The present application provides an explosion-proof detector and a battery compartment comprising same, the explosion-proof detector is arranged to detect the concentration of gas in an explosive environment, the explosion-proof detector comprises a shell, a detection member and an integrated member, the detection member and the integrated member are arranged inside the shell, the detection member is arranged close to the inlet end of the shell, the detection member is provided with a sensor capable of detecting the concentration of at least two combustible gases, arranged to detect the concentration of at least two combustible gases entering the inside of the shell, the integrated member is electrically connected with the detection member and arranged to collect the concentration information of the combustible gases detected by the detection member and transmit the collected concentration information of the combustible gases to a controller.

[0007] In one or more embodiments, the shell comprises a probe and a housing connected detachably, the detection member is arranged inside the probe, the inlet end of the probe is provided with a sintered explosion-proof sheet arranged to allow the flow of combustible gas and block the flow of flame;

[0008] And / or, the detection piece is provided with sensors for detecting the concentrations of three combustible gases, and the distances between the sensors are the same.

[0009] In one or more embodiments, the integrated piece includes an operation piece and a master control, the operation piece is electrically connected with the detection piece and the master control respectively, the operation piece is arranged close to the detection piece, the operation piece can perform operation based on the concentration information of combustible gas of the detection piece, the master control is electrically connected with the controller, and the master control can collect the concentration information of combustible gas after operation of the operation piece and transmit the collected concentration information of combustible gas to the controller.

[0010] The straight-line distance between the detection piece and the operation piece is not greater than 5 cm.

[0011] In one or more embodiments, the shell is made of metal, and the distances between the operation piece and the detection piece and the shell are both within the range of 0.3 mm to 0.8 mm.

[0012] And / or, the shell is made of metal, the operation piece and the detection piece are connected with the shell through an isolation column, the isolation column between the operation piece and the detection piece is made of metal, and the isolation column between the operation piece and the shell is made of insulating material.

[0013] In one or more embodiments, the integrated piece includes a master control, an adapter and a display piece, the master control is electrically connected with the detection piece and the controller respectively, the master control and the display piece are arranged on two sides of the adapter respectively and are electrically connected with the adapter, the master control is arranged to collect the concentration information of combustible gas of the detection piece, and the display piece is arranged close to the outlet end of the shell and can display the concentration information of combustible gas collected by the master control through the adapter.

[0014] In one or more embodiments, the shell includes a detachable shell and a fixed cover, the master control, the adapter and the display piece are arranged inside the shell, the display piece is arranged on one side of the outlet end of the adapter towards the shell, and the fixed cover is arranged on the outlet end of the shell and covers the display piece.

[0015] In one or more embodiments, the plane where the master control is located is parallel to the plane where the adapter is located, a limiting column is arranged between the master control and the adapter, the arrangement direction of the limiting column is perpendicular to the plane where the master control and / or the adapter is located, and the limiting column is fixedly connected with the master control and the adapter respectively after being arranged through the master control and the adapter.

[0016] In one or more embodiments, the adapter is provided with a recess, and the master control is provided with a communication interface on a side surface of the adapter, the communication interface is located in the recess and is electrically connected with the controller.

[0017] The application also provides a battery cabin configured to accommodate a battery, the battery cabin comprising a battery cabin body, a controller and the explosion-proof detector as described in any one of the preceding embodiments, the explosion-proof detector is arranged inside the battery cabin body and is configured to detect the concentration of combustible gas inside the battery cabin body, the controller is electrically connected with the explosion-proof detector, and the controller is capable of receiving the concentration information of combustible gas sent by the explosion-proof detector and judging the state of the battery.

[0018] In one or more embodiments, the inside of the battery cabin body is further provided with a spraying device, the spraying device is electrically connected with the controller, and the spraying device is capable of spraying fire extinguishing agent into the inside of the battery cabin body based on the instruction of the controller judging the state of the battery.

[0019] In one or more embodiments, the explosion-proof detector is provided with a channel for the flow of combustible gas at the inlet end thereof, and the channel is arranged in the same direction as the upward direction of the combustible gas inside the battery cabin body. BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1 is a schematic diagram of the external structure of the explosion-proof detector according to the embodiments of the application.

[0021] FIG. 2 is a side sectional view of the explosion-proof detector according to the embodiments of the application.

[0022] FIG. 3 is a schematic diagram of the detection member towards the side of the inlet end of the shell according to the embodiments of the application.

[0023] FIG. 4 is a schematic diagram of the internal components of the explosion-proof detector according to the embodiments of the application without the shell.

[0024] FIG. 5 is a schematic diagram of the internal structure of the explosion-proof detector according to the embodiments of the application at a first viewing angle.

[0025] FIG. 6 is a partial enlarged view of A in FIG. 5.

[0026] FIG. 7 is a schematic diagram of the internal structure of the explosion-proof detector according to the embodiments of the application at a second viewing angle.

[0027] FIG. 8 is a schematic diagram of the internal structure of the explosion-proof detector according to the embodiments of the application at the shell.

[0028] FIG. 9 is a schematic diagram of the internal structure of the explosion-proof detector according to the embodiments of the application at the display member.

[0029] Fig. 10 is a schematic diagram of the internal structure of the explosion-proof detector at the adapter provided by the embodiment of the present application.

[0030] Fig. 11 is a schematic diagram of the internal structure of the explosion-proof detector at the main control provided by the embodiment of the present application.

[0031] Fig. 12 is a schematic diagram of the structure of the battery compartment provided by the embodiment of the present application.

[0032] Wherein, the reference signs are as follows: explosion-proof detector 100, shell 11, probe 111, shell 112, fixed cover 113, detection member 12, sensor 121, isolation column 122, integrated member 13, operation member 131, main control 132, adapter 133, avoiding recess 1331, display member 134, sintered explosion-proof sheet 14, limiting column 15, communication interface 16, wire harness 17, adapter terminal 18, wiring busbar 19, direction of entry of combustible gas X, glue pouring processing area M, battery compartment body 200, controller 300, spraying device 400. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. The described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0034] The term “one embodiment” or “an embodiment” as used herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one implementation of the present application. In the description of the present application, the terms “upper”, “lower”, “left”, “right”, “top”, “bottom”, and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first” and “second” are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by “first” and “second” can explicitly or implicitly include one or more of the features. Moreover, the terms “first”, “second”, and the like are used to distinguish similar objects, and do not necessarily describe a particular order or sequence. The data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0035] As shown in FIGS. 1-11, the present application provides an explosion-proof detector 100, which is arranged to detect the concentration of gas in an explosive environment, which refers to, for example, a chemical plant in an industrial production environment, a metallurgical industry, or an oil and gas industry, or a power storage station, etc. The explosive environment is not limited, because the purpose of the explosion-proof detector 100 in the embodiment is mainly to detect whether the concentration of flammable gas in the environment meets the standard of the application scenario. For example, in a power storage station, in order to accurately monitor and judge whether the container is dangerous, it is necessary to install an explosion-proof detector 100 for CO, H2, VOC (Volatile Organic Compounds, representing volatile organic compounds) and other flammable gases generated by lithium battery thermal runaway in the container. Then, the concentration information of at least one flammable gas is comprehensively collected, and the fire control machine is used to judge whether there is a fire in the container, and then report to the fire control system for fire alarm, fire extinguishing and other disposal.

[0036] The explosion-proof detector 100 includes a shell 11, a detection piece 12 and an integrated piece 13. The detection piece 12 and the integrated piece 13 are arranged inside the shell 11. The detection piece 12 is arranged near the inlet end of the shell 11 to quickly contact the air sample entering the inside of the shell 11. The detection piece 12 is also provided with a sensor 121 capable of detecting the concentration of at least two flammable gases, for detecting the concentration of at least two flammable gases entering the inside of the shell 11. At the same time, the integrated piece 13 is electrically connected with the detection piece 12, i.e. signal connection, arranged to collect the concentration information of the flammable gas detected by the detection piece 12, and deliver the collected concentration information of the flammable gas to the controller 300. The controller 300 makes further judgment according to the received concentration information of the flammable gas. In the embodiment, the above-mentioned flammable gas refers to CO, H2 and VOC. In other embodiments, it can also include but not limited to the above three flammable gases, which can be adjusted and changed according to the different use scenarios of the explosion-proof detector 100, which will not be described here.

[0037] Therefore, in the present embodiment, by providing the sensor 121 capable of detecting at least two kinds of combustible gas on the single detection piece 12, the simultaneous detection of the concentration of multiple combustible gases is achieved, and the detection efficiency and coverage are improved. Moreover, by combining multiple sensors 121 for detecting different types of combustible gas on one detection piece 12, the number of installation points required in the environment where the explosion-proof detector 100 is located is reduced, not only reducing the complexity and time cost of installing the explosion-proof detector 100, simplifying the installation process, but also saving the installation space of the environment where the explosion-proof detector 100 is located, and is suitable for explosive environments with limited space. At the same time, by integrating at least two sensors 121 for detecting the concentration of combustible gas on one detection piece 12, the multiple sensors 121 on the detection piece 12 are more compact, so by means of high-density integration, the limitation of the narrow area of the detection piece 12 is also overcome, and there is no need to combine the sensor components for detecting the concentration of multiple types of combustible gas, which also solves the problem of limited installation space and limited use space of the explosion-proof detector 100 to a certain extent. Furthermore, the integrated piece 13 can collect the gas concentration information from the detection piece 12 and transmit the gas concentration information to the controller 300 through electrical connection, realizing centralized processing of the concentration information of combustible gas, facilitating the unified analysis of the controller 300 on the concentration information data of the combustible gas, and improving the efficiency of the controller 300 in judging the state of the environment where the explosion-proof detector 100 is located. In addition, through the accurate monitoring of the concentration of multiple combustible gases in the explosive environment by the explosion-proof detector 100 in the present embodiment, and the timely response to potential dangers, the safety of the environment and the ability to prevent fire and explosion accidents are improved.

[0038] In summary, the explosion-proof detector 100 in the present embodiment can integrate the detection of multiple combustible gases, reduce the installation points, save space, simplify the installation process and centralized information processing, realize efficient, simple and safe concentration monitoring of combustible gas, and is suitable for safety monitoring needs in explosive environments.

[0039] Exemplarily, the detection ends of the three sensors 121 in the application are all directed to the side where the combustible gas enters, i.e., the inlet end of the shell 11. Also, referring to FIG. 3, in the present embodiment, when the three sensors 121 are arranged, the relative positional relationship of the three sensors 121 in space is also defined, i.e., the three sensors 121 form a triangular arrangement, each sensor 121 is located at a vertex of the triangle, and has a certain distance from each other. The three sensors 121 are not placed on the same straight line, but are scattered to form a triangle. Exemplarily, in the present application, the distance between the three sensors 121 is the same, forming an equilateral triangle, which can make the multiple types of combustible gas diffuse to the inside of the shell 11 after the multiple types of combustible gas diffuse to the inside of the shell 11, and due to the uniform arrangement of the multiple sensors 121 and the diffusion behavior of the multiple types of combustible gas, the multiple types of combustible gas samples are uniformly distributed in the monitoring area of the sensor 121 and uniformly flow to the detection end of the multiple sensors 121, so as to facilitate the subsequent concentration detection of the combustible gas. Therefore, no matter how the specific position of the multiple types of combustible gas samples initially enters the monitoring area of the sensor 121, it will eventually be uniformly distributed in the monitoring range of the three sensors 121, ensuring that the combustible gas samples are uniformly detected in the monitoring area, thereby improving the accuracy and reliability of the explosion-proof detector 100.

[0040] In addition, since the explosion-proof detector 100 in the present embodiment is located in a normal atmospheric pressure condition and a temperature of -20℃ to 85℃ environment, when the sensor 121 for detecting the concentration of multiple types of combustible gas is integrated on a detection piece 12, there will be no chemical reaction between H2 and CO and the multiple sensors 121, because the conditions of high temperature, high pressure, and catalyst addition for chemical reaction of them are not reached in this environment, so there will be no chemical reaction between the multiple sensors 121 and between the multiple types of combustible gas and the sensor 121 for detecting the concentration of other gas.

[0041] The shell 11 includes a detachably connected probe 111 and a shell 112, the detection piece 12 is arranged inside the probe 111, the inlet end of the probe 111 is provided with a sintered explosion-proof sheet 14, the sintered explosion-proof sheet 14 is arranged to allow the combustible gas to flow and block the flame from flowing; and / or, the detection piece 12 is provided with a sensor 121 for detecting the concentration of three types of combustible gas, and the distance between the multiple sensors 121 is the same.

[0042] As shown in FIG. 2, FIG. 4 and FIG. 7, the shell 11 comprises a detachable connection probe 111 and a shell 112, the detection piece 12 is arranged inside the probe 111, that is, the probe 111 is arranged at the entrance end of the shell 11, so that the detection piece 12 inside the probe 111 detects the combustible gas entering the inside of the probe 111, and a sintered explosion-proof sheet 14 is arranged at the entrance end of the probe 111 in a clamping manner, the sintered explosion-proof sheet 14 is arranged for the flow of combustible gas and can block the flow of flame. The sintered explosion-proof sheet 14 is similar to a "filter screen", as shown in FIG. 1-2, the entering direction X of the combustible gas entering the inside of the probe 111 is marked, the combustible gas can flow between the inside of the probe 111 and the outside of the shell 11 along the entering direction X of the combustible gas entering the inside of the probe 111 through the sintered explosion-proof sheet 14, without the need to provide power to suck the combustible gas into the inside of the probe 111, the combustible gas can only enter the inside of the probe 111 by its own diffusion, in this way, by making the natural flow of the combustible gas, it is ensured that the explosion-proof detector 100 can continuously and real-time monitor the concentration of the combustible gas in the explosive environment; and the sintered explosion-proof sheet 14 also has the effect of blocking the spread of flame, even if an explosion occurs inside the explosion-proof detector 100, the sintered explosion-proof sheet 14 can prevent the flame from spreading to the outside explosive environment, thereby avoiding causing spontaneous combustion of the environment and further safety hazards, in this way, by blocking the spread of flame, the explosion risk of the explosion-proof detector 100 caused by internal failure during detection is reduced, and the safety monitoring level of the explosive environment is further improved.

[0043] Exemplarily, the integrated piece 13 comprises a calculation piece 131 and a master control 132, the calculation piece 131 is electrically connected with the detection piece 12 and the master control 132 respectively, and the calculation piece 131 is arranged close to the detection piece 12. The calculation piece 131 can perform calculation based on the concentration information of the combustible gas of the detection piece 12. In the embodiment, the detection piece 12, the calculation piece 131 and the master control 132 are all circuit boards, and the calculation piece 131 and the master control 132 are both provided with chips, and the calculation piece 131 and the master control 132 are electrically connected through the wire harness 17 to realize signal transmission between them. The detection piece 12 is provided with a plurality of sensors 121, and along the axis direction of the combustible gas entering into the probe 111, which can also be understood as along the central axis direction of the probe 111, the detection piece 12 and the calculation piece 131 are coaxial, and the calculation piece 131 is arranged downstream of the detection piece 12. The calculation piece 131 and the detection piece 12 are electrically connected by using a pin header and a female header, so that the calculation piece 131 can perform rapid calculation of special algorithms based on the concentration information of the combustible gas of the detection piece 12 by using the chip inside the calculation piece 131, and can quickly receive and process the concentration information of the combustible gas transmitted by the detection piece 12. Not only can it reduce the attenuation and interference of the signal in the transmission process and maintain the integrity of the data, but also can make the calculation piece 131 perform real-time or near real-time data analysis and calculation, improve the speed and accuracy of data processing, and ensure that the concentration information of the combustible gas transmitted to the master control 132 is accurate and reliable. Moreover, since the principle of detecting the concentration of the combustible gas by the sensor 121 is to finally convert it into an electrical signal and transmit it to the chip of the calculation piece 131, and the current is weak and rapid during transmission, it is necessary to control the distance between the sensor 121 and the chip so that the distance between them is as small as possible. If the distance between the chip and the sensor 121 is too large, it will cause delay in the transmission of the electrical signal, and even cause errors in the detection result of the concentration of the combustible gas. Therefore, in the embodiment, along the central axis direction of the probe 111, the straight-line distance between the detection piece 12 and the calculation piece 131 is not greater than 5 cm, so as to ensure the accuracy of signal transmission.

[0044] The master control 132 is electrically connected with the controller 300, and the master control 132 can collect and transmit the concentration information of the combustible gas calculated by the calculation piece 131 to the controller 300, realizing centralized control and management of information. Moreover, by separating the calculation piece 131 and the master control 132, the modularity of the functions is realized, and the maintenance and replacement of multiple components are facilitated. Meanwhile, in the embodiment, the straight-line distance between the calculation piece 131 and the master control 132 is set to be within the range of 70 mm to 200 mm, for example, 110 mm. Such arrangement realizes accurate and complete transmission of electrical signals, avoiding problems such as signal loss caused by too long distance between the calculation piece 131 and the master control 132.

[0045] In addition, the integrated piece 13 further comprises a switching piece 133 and a display piece 134, the main control piece 132, the switching piece 133 and the display piece 134 are arranged in the interior of the shell 112, the main control piece 132 is electrically connected with the detection piece 12 and the controller 300 respectively, the main control piece 132 and the display piece 134 are arranged on two sides of the switching piece 133 respectively and are electrically connected with the switching piece 133, the switching piece 133 can be connected with the main control piece 132 through the switching terminal 18, the switching piece 133 is connected with the display piece 134 through the wiring harness female terminal 19, the main control piece 132 is arranged to collect the combustible gas concentration information of the detection piece 12, the display piece 134 is arranged close to the outlet end of the shell 11 and can display the combustible gas concentration information collected by the main control piece 132 through the switching piece 133. In this way, the display piece 134 can display the combustible gas concentration information collected by the main control piece 132 in real time, so as to facilitate the operator to monitor and read data.

[0046] The shell 11 is made of metal, the distance between the operation piece 131 and the detection piece 12 and the shell 11 is in the range of 0.3mm-0.8mm; and / or, the shell 11 is made of metal, the operation piece 131 and the detection piece 12 are connected with the shell 11 through the isolation column 122, the isolation column 122 between the operation piece 131 and the detection piece 12 is made of metal, and the isolation column 122 between the operation piece 131 and the shell 11 is made of insulating material.

[0047] Since the shell 11 of the explosion-proof detector 100 in the present application needs to meet the requirement of explosion-proof performance, the probe 111 is made of metal, usually aluminum alloy, so the probe 111 has conductivity. In order to ensure that the plurality of sensors 121 inside the probe 111 are not disturbed, that is, to avoid the conduction of the probe 111 to the plurality of sensors 121, in the present embodiment, the following two ways are adopted to avoid it:

[0048] On the one hand, referring to FIG. 2, the distance between the operation piece 131 and the detection piece 12 and the inner wall surface of the probe 111 is controlled respectively, so that the operation piece 131 and the detection piece 12 cannot contact the probe 111, so as to avoid the formation of a loop and the generation of current when someone touches the probe 111 from the outside, which will cause the entire explosion-proof detector 100 to false alarm. Therefore, in the present embodiment, the distance between the operation piece 131 and the detection piece 12 and the inner wall surface of the probe 111 is controlled to be in the range of 0.3mm-0.8mm, for example, 0.5mm;

[0049] In another aspect, referring to FIG. 4, the isolation column 122 is connected between the detection member 12 and the operation member 131, and is also fixedly connected through the isolation column 122 and the probe 111, the isolation column 122 between the detection member 12 and the operation member 131 is made of metal, for example, copper, but the isolation column 122 between the operation member 131 and the probe 111 is made of insulating material, for example, nylon material, to insulate the electrical conductivity between the operation member 131 and the probe 111.

[0050] In addition, referring to the glue-filling processing area M of FIG. 2, the application also performs glue-filling processing between the side of the operation member 131 facing the main control 132 and the inner wall surface of the probe 111, that is, the black bubble area in the glue-filling processing area M of FIG. 2, so that the glue-filling processing area M can be wrapped on the outer wall surface of the isolation column 122, not only to fix the operation member 131 completely, but also to support the detection member 12 through the operation member 131.

[0051] In other embodiments, other mature technical means can be used to solve the insulation of the probe 111 and the sensor 121 to avoid the safety hazards caused by the electrical conductivity.

[0052] As shown in FIGS. 2, 4 and 7, the shell 11 further comprises a fixed cover 113 detachably connected with the shell 112, the main control 132, the adapter 133 and the display member 134 are all arranged inside the shell 112, the display member 134 is arranged on the side of the outlet end of the shell 112 facing the adapter 133, and the fixed cover 113 is arranged on the outlet end of the shell 112 and covers the display member 134 to protect the display member 134 from damage by the outside world.

[0053] As shown in FIGS. 2 and 4, the plane where the main control 132 is located and the plane where the adapter 133 is located are parallel, and a limiting column 15 is arranged between the main control 132 and the adapter 133, the arrangement direction of the limiting column 15 is perpendicular to the plane where the main control 132 and / or the adapter 133 is located, the limiting column 15 is fixedly connected with the main control 132 and the adapter 133 after being arranged through the main control 132 and the adapter 133, to improve the stable support between the main control 132 and the adapter 133, ensure the relative position stability between the main control 132 and the adapter 133, and prevent the displacement of the main control 132 and the adapter 133 caused by vibration or impact. In addition, the design of the limiting column 15 helps to reduce the alignment error in the assembly process, improves the assembly precision and production efficiency.

[0054] As shown in FIG. 4 and FIG. 8, the adapter 133 is provided with a recess 1331, and the main control 132 is provided with a communication interface 16 on the side surface facing the adapter 133, which is located in the recess 1331 and is electrically connected with the controller 300. The design of the recess 1331 avoids the direct contact between the communication interface 16 provided on the main control 132 and the adapter 133, reduces the possibility of mechanical interference and wear, and prolongs the service life.

[0055] As shown in FIG. 12, the application also provides a battery cabin configured to accommodate a battery, wherein the battery cabin comprises a battery cabin body 200, a controller 300, and the above-mentioned explosion-proof detector 100, which is arranged inside the battery cabin body 200 and is configured to detect the concentration of combustible gas inside the battery cabin body 200 in real time, discover potential fire hazards in time, and improve the safety of the battery cabin.

[0056] The controller 300 and the explosion-proof detector 100 are electrically connected, and the controller 300 can receive the concentration information of the combustible gas sent by the explosion-proof detector 100 and judge the state of the battery, realizing intelligent monitoring and control of the running state of the battery.

[0057] Therefore, through real-time monitoring and intelligent control of the concentration of combustible gas inside the battery cabin and the design of integrating the explosion-proof detector 100, not only does the monitoring and management of the battery cabin become more automated, reducing the need for manual intervention and improving management efficiency, but also measures can be taken in time to prevent the concentration of combustible gas inside the battery cabin from exceeding the safety threshold, thereby effectively preventing the occurrence of fire.

[0058] Exemplarily, the inside of the battery cabin body 200 is also provided with a spraying device 400, which is electrically connected with the controller 300 and can quickly respond based on the instruction of the controller 300 to judge the state of the battery and quickly spray fire extinguishing agent (usually perfluorohexone) into the inside of the battery cabin body 200, effectively controlling and extinguishing the fire. By automatically starting the spraying device 400 through the instruction of the controller 300, the automatic fire extinguishing of the inside of the battery cabin is realized, reducing the need for personnel operation and potential danger.

[0059] The explosion-proof detector 100 is provided with a channel for the combustible gas to flow at the inlet end of the explosion-proof detector 100, the setting direction of the channel is the same as the rising direction of the combustible gas inside the battery cabin body 200, the channel is designed to enable the combustible gas with low density to flow naturally to the inside of the explosion-proof detector 100 along the airflow rising inside the battery cabin, without additional power driving, so as to realize the natural flow of the combustible gas; and the naturally flowing combustible gas can quickly enter the inside of the explosion-proof detector 100, improve the detection efficiency of the explosion-proof detector 100, so that the explosion-proof detector 100 can respond to the environmental change more quickly, to a certain extent, the energy consumption and possible interference in the flow process of the combustible gas can be reduced, and the overall safety of the explosion-proof detector 100 is improved.

Claims

1. An explosion-proof detector, wherein, The explosion-proof detector (100) is arranged to detect the gas concentration in an explosive environment, and comprises a shell (11), a detection member (12) and an integrated member (13). The detection member (12) and the integrated member (13) are arranged inside the shell (11), the detection member (12) is arranged close to the inlet end of the shell (11), the detection member (12) is provided with a sensor (121) capable of detecting the concentration of at least two combustible gases, and is arranged to detect the concentration of the at least two combustible gases entering the inside of the shell (11). The integrated member (13) is electrically connected with the detection member (12), and is arranged to collect the combustible gas concentration information detected by the detection member (12) and transmit the collected combustible gas concentration information to a controller (300).

2. The explosion-proof detector according to claim 1, wherein, The explosion-proof detector comprises at least one of the following: The shell (11) comprises a probe (111) and a shell body (112) detachably connected, the detection member (12) is arranged inside the probe (111), the inlet end of the probe (111) is provided with a sintered explosion-proof sheet (14), and the sintered explosion-proof sheet (14) is arranged to allow the combustible gas to flow and block the flame from flowing. Alternatively, the detection member (12) is provided with a sensor (121) for detecting the concentration of three combustible gases, and the distance between the plurality of sensors (121) is the same.

3. The explosion-proof detector of claim 1, wherein, The integrated member (13) comprises a calculation member (131) and a main control (132), the calculation member (131) is electrically connected with the detection member (12) and the main control (132) respectively, the calculation member (131) is arranged close to the detection member (12), the calculation member (131) is arranged to perform calculation based on the combustible gas concentration information of the detection member (12), the main control (132) is electrically connected with the controller (300), and the main control (132) is arranged to collect the combustible gas concentration information after the calculation of the calculation member (131) and transmit the collected combustible gas concentration information to the controller (300). The straight-line distance between the detection member (12) and the calculation member (131) is not greater than 5 cm.

4. The explosion-proof detector of claim 3, wherein, The explosion-proof detector comprises at least one of the following: The shell (11) is made of metal, and the distance between the calculation member (131) and the detection member (12) and the shell (11) is within the range of 0.3mm to 0.8mm. Alternatively, the shell (11) is made of metal, the calculation member (131) and the detection member (12) are connected with the shell (11) by an isolation column (122), the isolation column (122) between the calculation member (131) and the detection member (12) is made of metal, and the isolation column (122) between the calculation member (131) and the shell (11) is made of insulating material.

5. The explosion-proof detector of claim 1, wherein, The integrated piece (13) comprises a main control (132), a switching piece (133) and a display piece (134), the main control (132) is electrically connected with the detection piece (12) and the controller (300) respectively, the main control (132) and the display piece (134) are arranged on two sides of the switching piece (133) and are electrically connected with the switching piece (133) respectively, the main control (132) is arranged to collect the concentration information of the combustible gas of the detection piece (12), and the display piece (134) is arranged close to the outlet end of the shell (11) and is arranged to display the concentration information of the combustible gas collected by the main control (132) through the switching piece (133).

6. The explosion-proof detector of claim 5, wherein, The shell (11) comprises a detachable shell (112) and a fixed cover (113), the main control (132), the switching piece (133) and the display piece (134) are arranged in the interior of the shell (112), the display piece (134) is arranged on the side of the switching piece (133) facing the outlet end of the shell (112), and the fixed cover (113) is arranged on the outlet end of the shell (112) and is arranged to cover the display piece (134).

7. The explosion-proof detector of claim 5, wherein, The plane where the main control (132) is located is parallel to the plane where the switching piece (133) is located, a limiting column (15) is arranged between the main control (132) and the switching piece (133), the arrangement direction of the limiting column (15) is perpendicular to the plane where at least one of the main control (132) or the switching piece (133) is located, and the limiting column (15) is fixedly connected with the main control (132) and the switching piece (133) after penetrating the main control (132) and the switching piece (133).

8. The explosion-proof detector of claim 5, wherein, The switching piece (133) is provided with a recess (1331), a communication interface (16) is arranged on the side surface of the main control (132) facing the switching piece (133), the communication interface (16) is located in the recess (1331) and is arranged to be electrically connected with the controller (300).

9. A battery compartment, wherein, The battery cabin is arranged to accommodate a battery, the battery cabin comprises a battery cabin body (200), a controller (300) and the explosion-proof detector (100) of any one of claims 1-8, the explosion-proof detector (100) is arranged in the interior of the battery cabin body (200) and is arranged to detect the concentration of combustible gas in the interior of the battery cabin body (200), the controller (300) is electrically connected with the explosion-proof detector (100), and the controller (300) is arranged to receive the concentration information of combustible gas sent by the explosion-proof detector (100) and judge the state of the battery.

10. The battery compartment of claim 9, wherein, The inside of the battery cabin body (200) is further provided with a spraying device (400), the spraying device (400) is electrically connected with the controller (300), and the spraying device (400) is arranged to spray fire extinguishing agent into the inside of the battery cabin body (200) based on the instruction of the controller (300) judging the state of the battery.

11. The battery compartment of claim 9, wherein, The explosion-proof detector (100) is provided with a channel for the flow of combustible gas at the inlet end, and the setting direction of the channel is the same as the upward direction of the combustible gas in the inside of the battery cabin body (200).

Images