Fire control device and electrical cabinet

Abstract

A fire control device and an electrical cabinet are disclosed. The fire control device includes a temperature sensing component located within the electrical cabinet for monitoring its temperature. A first gas supply unit, electrically connected to the temperature sensing component, includes a first channel and a valve disposed on the first channel. When the temperature sensing component detects that the temperature exceeds a first preset threshold, the valve opens to rapidly deliver external first extinguishing gas into the electrical cabinet. A second gas supply unit, also electrically connected to the temperature sensing component, has a partition structure for separating or connecting the first and second zones. When connected, the first and second chemical reactants come into contact, reacting to generate a second extinguishing gas. Therefore, the fire control device combines the rapid response of an external gas source with the independent generation of an internal gas source, forming a comprehensive fire extinguishing scheme with complementary functions and timely response, greatly improving the reliability and extinguishing performance of the electrical cabinet's fire protection.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor equipment, and more particularly to a fire control device and an electrical cabinet. Background Technology

[0002] As a core area of ​​modern technological development, the semiconductor industry employs highly complex and precise production equipment, encompassing numerous electrical components and automated control systems. In this production environment, electrical cabinets, as critical carriers of electrical equipment, store and protect various electrical components, providing a fundamental guarantee for the stable operation of semiconductor production lines.

[0003] The application of electrical cabinets in semiconductor manufacturing has its unique characteristics. The semiconductor manufacturing environment is complex and hazardous, with equipment operating under extreme conditions such as high temperatures and high pressures, and involving numerous electrical devices as well as the use of flammable gases or chemicals. These factors significantly increase the risk of fires ignited inside the electrical cabinets due to electrical faults, component aging, short circuits, and other reasons. Once a fire starts inside the cabinet, it spreads rapidly, not only damaging the electrical components and rendering the equipment unusable, but also potentially endangering surrounding equipment and personnel, and even causing more serious fire accidents, resulting in huge economic losses and safety hazards for the company.

[0004] Currently, traditional fire extinguishing methods have many shortcomings and are difficult to meet the specific needs of the semiconductor industry. For example, water and foam extinguishing agents can easily damage precision equipment, while dry powder fire extinguishers may pollute the production environment and affect product quality. Utility Model Content

[0005] The problem solved by this utility model embodiment is to provide a fire control device and electrical cabinet, which improves the reliability of fire protection and fire extinguishing performance of the electrical cabinet.

[0006] To address the aforementioned problems, this utility model provides a fire control device applied to an electrical cabinet, comprising: a temperature sensing component located within the electrical cabinet for monitoring the internal temperature; a first gas supply unit electrically connected to the temperature sensing component, comprising: a first channel for delivering a first fire extinguishing gas to the electrical cabinet; a valve disposed on the first channel, the valve being used to open the first channel when the temperature sensing component detects that the internal temperature of the electrical cabinet exceeds a first preset threshold; a second gas supply unit electrically connected to the temperature sensing component, comprising: a gas generating device having an internal space, the internal space including a first region and a second region, the first region containing a first chemical reactant, and the second region containing a second chemical reactant; a partition structure movably disposed within the internal space, the partition structure being configured to separate or connect the first region and the second region, and when connected, the first chemical reactant and the second chemical reactant come into contact, chemically reacting to generate a second fire extinguishing gas; and a second channel communicating with the internal space for delivering the second fire extinguishing gas to the interior of the electrical cabinet.

[0007] Optionally, the temperature sensing component includes multiple temperature control switches, each temperature control switch including a normally closed contact; the valve includes a first solenoid valve, the first solenoid valve including a first relay; the fire control device further includes a first control circuit, wherein the normally closed contact of the temperature control switch and the coil of the first relay of the first solenoid valve are connected in series in the first control circuit; when any of the temperature control switches detects that the temperature exceeds the first preset threshold, the normally closed contact of the temperature control switch opens, thereby disconnecting the first control circuit, the first relay is de-energized, and the first solenoid valve opens the valve.

[0008] Optionally, the first relay includes a normally open contact; the fire control device further includes: an alarm component connected to the normally open contact of the first relay; and a fourth control circuit in which the alarm component and the normally open contact of the first relay are connected in series. When any of the temperature control switches detects that the temperature exceeds the first preset threshold, the normally closed contact of the temperature control switch opens, causing the first relay to lose power and the normally open contact of the first relay to close, thereby connecting the fourth control circuit, and the alarm component is energized to sound an alarm.

[0009] Optionally, the fire control device further includes: a drive device connected to the partition structure; a second relay electrically connected to the drive device; and a second control circuit in which the coil of the second relay and the drive device are connected in series, wherein the second relay is configured such that when its coil is de-energized, the drive device drives the partition structure to connect the first area and the second area.

[0010] Optionally, the partition structure includes: a first plate rotatably disposed on a first end sidewall in a first direction within the internal space, the first plate having a first magnetic attraction structure; a second plate forming the partition structure with the first plate, the second plate rotatably disposed on a second end sidewall in a second direction within the internal space, the second plate having a second magnetic attraction structure; and a driving device disposed on a sidewall in a second direction within the internal space, the driving device including a third magnetic attraction structure, which simultaneously attracts the first and second magnetic attraction structures, thereby spacing the first region and the second region apart from each other.

[0011] Optionally, the fire control device further includes: a time relay electrically connected to the second relay; a third control circuit, wherein the temperature sensing component includes multiple temperature control switches, the normally open contacts of the multiple temperature control switches are connected in parallel, and the parallel switch group is connected in series with the coil of the time relay in the third control circuit; when any of the temperature control switches detects that the temperature exceeds a second preset threshold, the normally open contact of the temperature control switch closes, energizing the coil of the time relay and starting a timer, and the time relay is used to output a signal to disconnect the normally closed contact of the second relay after a preset time is reached.

[0012] Optionally, the temperature sensing component includes multiple temperature control switches, which are bimetallic temperature control switches with mechanical structures.

[0013] Optionally, the first chemical reactant is sodium bicarbonate, and the second chemical reactant is an organic acid.

[0014] Optionally, the fire control device further includes: a main pipeline connected to the first channel and the second channel, wherein the first fire extinguishing gas in the first channel and the second fire extinguishing gas in the second channel converge into the main pipeline and are transported to the inside of the electrical cabinet through the main pipeline.

[0015] This utility model embodiment also provides an electrical cabinet, including the aforementioned fire control device.

[0016] Compared with the prior art, the technical solution of this utility model embodiment has the following advantages:

[0017] The temperature sensing component of this fire control device is located in the electrical cabinet and is used to monitor the temperature of the cabinet. A first gas supply unit, electrically connected to the temperature sensing component, includes a first channel and a valve disposed on the first channel. When the temperature sensing component detects that the temperature exceeds a first preset threshold, the valve opens to quickly deliver external first extinguishing gas into the electrical cabinet. This process utilizes an existing external gas source, enabling immediate and rapid suppression of fire in its initial stages. Simultaneously, a second gas supply unit in the fire control device, electrically connected to the temperature sensing component, includes a gas generating device. The internal space of the gas generating device includes a first region and a second region. The first region contains a first chemical reactant, and the second region contains a second chemical reactant. A partition structure is movably disposed within the internal space. The partition structure is configured to separate or connect the first and second regions. When connected, the first and second chemical reactants come into contact, and a chemical reaction generates a second extinguishing gas. This method of generating a second extinguishing gas through a chemical reaction provides an independent and reliable second layer of protection for fire suppression, independent of external gas sources. Therefore, by combining the rapid response of external gas sources with the independent generation of internal self-generated gas sources, the fire control device forms a comprehensive fire extinguishing solution with complementary functions and timely response, which greatly improves the reliability and fire extinguishing performance of electrical cabinets. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the fire control device according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the second gas supply unit in the fire prevention control device of this utility model embodiment. Detailed Implementation

[0020] As the background technology shows, traditional fire extinguishing methods currently have many shortcomings and are difficult to meet the special needs of the semiconductor industry. For example, water and foam extinguishing agents can easily damage precision equipment, while dry powder fire extinguishers may pollute the production environment and affect product quality.

[0021] To address the aforementioned technical problem, the temperature sensing component of the fire control device of this utility model is located in the electrical cabinet and is used to monitor the temperature of the electrical cabinet. The first gas supply unit is electrically connected to the temperature sensing component and includes a first channel and a valve installed on the first channel. When the temperature sensing component detects that the temperature exceeds a first preset threshold, the valve is opened to quickly deliver external first fire extinguishing gas to the electrical cabinet. This process utilizes an existing external gas source, enabling immediate and rapid suppression of fire in its initial stage. Meanwhile, the second gas supply unit in the fire control device, electrically connected to the temperature sensing component, includes a gas generating device. The internal space of the gas generating device comprises a first region and a second region. The first region contains a first chemical reactant, and the second region contains a second chemical reactant. A partition structure is movably disposed within the internal space. The partition structure is configured to separate or connect the first and second regions. When connected, the first and second chemical reactants come into contact, and a chemical reaction generates a second extinguishing gas. This method of generating a second extinguishing gas through chemical reaction provides an independent and reliable second layer of protection for fire suppression, independent of external gas sources. Therefore, by combining the rapid response of an external gas source with the independent generation of an internal gas source, the fire control device forms a comprehensive fire suppression solution with complementary functions and timely response, greatly improving the reliability and extinguishing performance of the electrical cabinet's fire protection.

[0022] To make the above-mentioned objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] refer to Figure 1 and Figure 2This utility model provides a fire control device applied to an electrical cabinet 10, comprising: a temperature sensing component 100 located in the electrical cabinet 10 for monitoring the internal temperature of the electrical cabinet 10; a first gas supply unit 200 electrically connected to the temperature sensing component 100, comprising: a first channel 201 for supplying a first fire extinguishing gas to the electrical cabinet 10; a valve 202 disposed on the first channel 201, the valve 202 being used to open the first channel 201 when the temperature sensing component 100 detects that the internal temperature of the electrical cabinet 10 exceeds a first preset threshold; and a second gas supply unit 300 electrically connected to the temperature sensing component 100. The device includes: a gas generating device 301 having an internal space, the internal space including a first region 302 and a second region 303, the first region 302 being provided with a first chemical reactant and the second region 303 being provided with a second chemical reactant; a partition structure 304 movably disposed in the internal space, the partition structure 304 being configured to separate or connect the first region 302 and the second region 303, and when connected, the first chemical reactant and the second chemical reactant come into contact and react chemically to generate a second fire extinguishing gas; and a second channel 305 communicating with the internal space for delivering the second fire extinguishing gas to the interior of the electrical cabinet 10.

[0024] The fire control device of this utility model provides a dual-mode fire protection system. A temperature sensing component 100 is located in the electrical cabinet 10 and is used to monitor the temperature of the electrical cabinet 10. A first gas supply unit 200 is electrically connected to the temperature sensing component 100 and includes a first channel 201 and a valve 202 disposed on the first channel 201. When the temperature sensing component 100 detects that the temperature exceeds a first preset threshold, the valve 202 is opened to quickly deliver external first fire extinguishing gas to the electrical cabinet 10. This process utilizes an existing external gas source, enabling immediate and rapid suppression of fire in its initial stage. Meanwhile, the second gas supply unit 300 in the fire control device, electrically connected to the temperature sensing component 100, includes a gas generating device 301. The internal space of the gas generating device 301 includes a first region 302 and a second region 303. The first region 302 is provided with a first chemical reactant, and the second region 303 is provided with a second chemical reactant. A partition structure 304 is movably disposed in the internal space. The partition structure 304 is configured to separate or connect the first region 302 and the second region 303. When connected, the first and second chemical reactants come into contact and react chemically to generate a second extinguishing gas. This method of generating a second extinguishing gas through chemical reaction provides an independent and reliable second layer of protection for fire extinguishing, independent of external gas sources. Therefore, this fire control device combines the rapid response of external gas sources with the independent generation of internal self-generated gas sources to form a comprehensive fire extinguishing scheme with complementary functions and timely response, greatly improving the fire protection reliability and fire extinguishing performance of the electrical cabinet 10.

[0025] The temperature sensing component 100, as the temperature sensing unit of the fire control device, is installed inside the electrical cabinet 10 to obtain real-time temperature parameters at key locations inside the electrical cabinet 10, thereby providing direct physical quantity basis for fire judgment and thus constituting the trigger source of the entire automated fire extinguishing logic.

[0026] In some embodiments, a temperature sensing component 100 is located in the electrical cabinet 10 and is used to monitor the temperature inside the electrical cabinet 10.

[0027] The temperature sensing component 100 is located inside the electrical cabinet 10, which enables the monitoring of the temperature inside the cabinet, thereby providing direct fire situation judgment basis for the entire fire control device, so that the fire can be detected in the early stage.

[0028] In some embodiments, the temperature sensing component 100 includes a plurality of temperature control switches 101, wherein the temperature control switches 101 are bimetallic temperature control switches with mechanical structures.

[0029] Bimetallic temperature control switches utilize the inherent property of a bimetallic strip undergoing physical deformation when it reaches a specific temperature to drive the switch action, thereby directly converting the temperature signal into a mechanical on / off command. This avoids complex electronic sensing circuits and software algorithms, simplifies the structure of temperature sensing, and makes the temperature sensing function independent of external structures.

[0030] In some embodiments, the temperature control switch 101 includes a normally closed contact 101a and a normally open contact 101b.

[0031] The temperature control switch 101 includes two sets of electrical contacts: a normally closed contact 101a (NC) and a normally open contact 101b (NO). The two sets of contacts are synchronously driven by the physical deformation generated by the same bimetallic strip, so that a dual electrical output of "one open and one closed" can be achieved under a single temperature sensing action.

[0032] In some embodiments, the trigger temperature of the bimetallic temperature control switch is mechanically adjustable.

[0033] The trigger temperature threshold of the bimetallic temperature control switch is mechanically adjustable, which allows for precise and personalized temperature settings for the alarm point of each temperature control switch 101 based on the normal operating temperature, heat dissipation conditions, and thermal sensitivity of the protected components at different locations within the electrical cabinet 10. This ensures a high degree of matching between the alarm threshold and actual protection requirements, enabling the fire control device to maintain high sensitivity while avoiding false alarms caused by normal heating of the electrical cabinet 10.

[0034] In some embodiments, the temperature sensing component 100 is installed near electrical devices that operate for extended periods, such as air switches, contactors, and transformers, inside the electrical cabinet 10.

[0035] In some embodiments, a first gas supply unit 200 is electrically connected to the temperature sensing component 100. The first gas supply unit 200 includes: a first channel 201 for supplying first fire extinguishing gas to the electrical cabinet 10; and a valve 202 disposed on the first channel 201, the valve 202 being used to open the first channel 201 when the temperature sensing component 100 detects that the temperature inside the electrical cabinet 10 exceeds a first preset threshold.

[0036] The first gas supply unit 200 connects the first extinguishing gas to the inside of the electrical cabinet 10 through the first channel 201, and the valve 202 establishes an electrical linkage with the temperature sensing component 100. Thus, when the temperature sensing component 100 detects that the temperature exceeds the first preset threshold, it can trigger the valve 202 to open instantaneously, thereby rapidly injecting the first extinguishing gas into the electrical cabinet 10 through the first channel 201 to suppress the initial fire. This provides a rapid response mechanism, enabling the fire control device to perform fire extinguishing actions as soon as the fire is confirmed, which is beneficial for effectively suppressing the fire before it spreads.

[0037] In some embodiments, the first channel 201 includes a first inlet and a first outlet, the first inlet being adapted to be connected to a plant nitrogen supply pipeline, and the first outlet being disposed inside the electrical cabinet 10.

[0038] The first inlet of the first channel 201 is adapted to connect to the plant nitrogen pipeline in the semiconductor plant area, thereby enabling the use of the plant's existing, well-supplied, and low-cost inert gas as the first extinguishing gas. This ensures a continuous supply of extinguishing agent and allows the fire control device to be easily integrated into the existing plant facilities.

[0039] In some embodiments, the temperature sensing component 100 includes a plurality of temperature control switches 101, each temperature control switch 101 including a normally closed contact 101a, and the valve 202 including a first solenoid valve, the first solenoid valve including a first relay 2021; the fire prevention control device further includes a first control circuit 401, wherein the normally closed contact 101a of the temperature control switch 101 and the coil of the first relay 2021 of the first solenoid valve are connected in series in the first control circuit 401. When any of the temperature control switches 101 detects that the temperature exceeds the first preset threshold, the normally closed contact 101a of the temperature control switch 101 is opened, thereby disconnecting the first control circuit 401, and the first relay 2021 is de-energized, causing the first solenoid valve to open the valve 202.

[0040] By connecting the normally closed contacts 101a of multiple temperature control switches 101 in series with the coil of the first relay 2021 in the first control circuit 401, an AND logic safety monitoring network is formed. The action of any temperature control switch 101 at any monitoring point will cause the first control circuit 401 to be immediately disconnected, thereby de-energizing the coil of the first relay 2021. Therefore, the de-energizing signal is used as a trigger command to directly drive the first solenoid valve of the de-energized type to open the valve 202 and release the first extinguishing gas. This makes the extinguishing response independent of the continuous energization of the first control circuit 401, which is conducive to building an inherently safe rapid start-up mechanism and ensures that the first gas supply unit 200 can perform extinguishing actions even when a fire occurs at any monitoring point or when the control power is unexpectedly interrupted.

[0041] In some embodiments, the first solenoid valve is normally open when de-energized.

[0042] The first solenoid valve is designed to be normally open when power is lost, so that when the first control circuit 401 is energized, the first channel 201 is kept closed, and when the first control circuit 401 is de-energized due to the temperature control switch 101 being closed or any line fault causing power failure, the first channel 201 is kept open, which helps to improve the reliability of the entire fire extinguishing system and the safety redundancy under abnormal operating conditions.

[0043] In some embodiments, the first relay 2021 includes a normally open contact 2021a.

[0044] The normally open contact 2021a on the first relay 2021 operates synchronously with the energized / de-energized state of the coil of the first relay 2021, so that when the first relay 2021 loses power due to a fire alarm, its normally open contact 2021a closes, providing an independent switching signal that is opposite to the state of the first control circuit 401.

[0045] In some embodiments, the fire control device further includes: an alarm component 500 connected to the normally open contact 2021a of the first relay 2021; and a fourth control circuit 404 in which the alarm component 500 and the normally open contact 2021a of the first relay 2021 are connected in series. When any of the temperature control switches 101 detects that the temperature exceeds a first preset threshold, the normally closed contact 101a of the temperature control switch 101 opens, causing the first relay 2021 to lose power and the normally open contact 2021a of the first relay 2021 to close, thereby connecting the fourth control circuit 404, and the alarm component 500 is energized to trigger an alarm.

[0046] The normally open contact 2021a of the first relay 2021 and the alarm component 500 are connected in series in the fourth control circuit 404. Taking advantage of the characteristic that the normally open contact 2021a of the first relay 2021 is de-energized during a fire alarm, it can drive the alarm component 500 to work independently of the fire extinguishing execution circuit. Therefore, the issuance of the alarm signal and the activation of the first fire extinguishing action are synchronous and electrically isolated, so that on-site personnel can receive clear and unambiguous audible and visual warnings at the first time.

[0047] In some embodiments, the alarm component 500 is an audible and visual alarm.

[0048] In some embodiments, the first extinguishing gas includes inert gases such as nitrogen and argon.

[0049] Choosing chemically stable inert gases such as nitrogen or argon as the primary extinguishing gas ensures that the fire extinguishing process will not cause secondary damage such as short circuits or corrosion to the delicate electrical components inside the electrical cabinet 10, nor will it pollute the semiconductor production environment. This makes the fire extinguishing process itself friendly to the equipment and the environment, which is conducive to the rapid restoration of equipment operation after the fire is extinguished and shortens downtime.

[0050] In some embodiments, the second gas supply unit 300 is electrically connected to the temperature sensing component 100. The second gas supply unit 300 includes: a gas generating device 301 having an internal space, the internal space including a first region 302 and a second region 303, the first region 302 being provided with a first chemical reactant and the second region 303 being provided with a second chemical reactant; a partition structure 304 movably disposed in the internal space, the partition structure 304 being configured to separate or connect the first region 302 and the second region 303, and when connected, the first chemical reactant and the second chemical reactant come into contact and react chemically to generate a second fire extinguishing gas; and a second channel 305 communicating with the internal space for delivering the second fire extinguishing gas to the interior of the electrical cabinet 10.

[0051] The second gas supply unit 300, through a built-in on-demand gas generator 301, provides an independent and self-sufficient second layer of fire extinguishing protection for the fire control device. When the fire extinguishing effect of the first plant gas source is insufficient or interrupted for any reason, the fire control device can still contact the two chemical reactants through the control interval structure 304 to generate a second fire extinguishing gas. Therefore, by combining the rapid response of the external gas source with the independent generation of the internal self-generated gas source, this fire control device forms a comprehensive fire extinguishing scheme with complementary functions and timely response, greatly improving the fire protection reliability and fire extinguishing performance of the electrical cabinet 10.

[0052] In some embodiments, the first chemical reactant includes sodium bicarbonate, and the second chemical reactant includes an organic acid.

[0053] Utilizing the characteristic that sodium bicarbonate can rapidly and safely undergo a neutralization reaction with organic acids, generating a large amount of carbon dioxide gas (3NaHCO3+C6H8O7→C6H5O7Na3+3H2O+3CO2↑), the second gas supply unit 300 is provided with an efficient, reliable, and easily controllable gas generation mechanism. The generated carbon dioxide, as a clean fire extinguishing agent, also has the advantages of being non-conductive and leaving no residue.

[0054] In some embodiments, the organic acid includes citric acid.

[0055] In some embodiments, the second channel 305 includes a second inlet and a second release port, the second inlet being used to deliver the second extinguishing gas, and the second release port being disposed inside the electrical cabinet 10.

[0056] The second inlet of the second channel 305 is directly connected to the internal space of the gas generating device 301, and the second release port also points to the inside of the electrical cabinet 10, thus establishing a transport path for the second extinguishing gas generated by the chemical reaction, thereby ensuring that the generated second extinguishing gas can be guided to the area that needs to be extinguished.

[0057] In some embodiments, the fire control device further includes: a drive device 306 connected to the partition structure 304; a second relay 307 electrically connected to the drive device 306; and a second control circuit 402 in which the coil of the second relay 307 and the drive device 306 are connected in series, wherein the second relay 307 is configured such that when its coil is de-energized, the drive device 306 drives the partition structure 304 to connect the first region 302 and the second region 303.

[0058] While the second control circuit 402 is continuously energized, the drive device 306 maintains the partition structure 304 in a separated state through electromagnetic force or other means, preventing the first and second chemical reactants from contacting each other. When the coil of the second relay 307 is de-energized, the drive device 306 automatically releases or drives the partition structure 304 to connect the first area 302 and the second area 303. The first and second chemical reactants mix to generate the second extinguishing gas. Even if the power supply cable of the second control circuit 402 is burned or the external power supply system fails during the fire's deterioration, the fire extinguishing command can still be executed.

[0059] In some embodiments, the drive device 306 includes an electromagnetic force lock.

[0060] The drive device 306 includes an electromagnetic lock, which utilizes the characteristic that the electromagnetic lock generates an attractive force to lock when energized and releases when de-energized, providing an actuator for the switching between the "separated" and "connected" states of the partition structure 304. Therefore, when the second control circuit 402 is de-energized, the electromagnetic lock releases, and the partition structure 304 moves under the action of gravity, causing the first and second chemical reactants to mix, thus improving the reliability of the chemical reaction triggering step.

[0061] In some embodiments, the partition structure 304 includes: a first plate 3041, rotatably disposed on a first end sidewall in a first direction of the internal space, the first plate 3041 having a first magnetic attraction structure; a second plate 3042, forming the partition structure 304 with the first plate 3041, the second plate 3042 being rotatably disposed on a second end sidewall in a second direction of the internal space, the second plate 3042 having a second magnetic attraction structure; and a driving device 306, disposed on the sidewall in the second direction of the internal space, the driving device 306 including a third magnetic attraction structure, the third magnetic attraction structure attracting both the first magnetic attraction structure and the second magnetic attraction structure simultaneously when energized, thereby separating the first region 302 and the second region 303 from each other.

[0062] Specifically, the partition structure 304 employs a rotatable first plate 3041 and a second plate 3042. Initially, the first plate 3041 and the second plate 3042 are in a horizontal position, separating the first region 302 and the second region 303 of the internal space. A third magnetic attraction structure simultaneously attracts the first magnetic attraction structure in the first plate 3041 and the second magnetic attraction structure in the second plate 3042, maintaining the separation of the first region 302 and the second region 303. When the driving device 306 (electromagnetic lock) is de-energized and its magnetic attraction disappears, the first plate 3041 and the second plate 3042 flip downwards and open under gravity, allowing the first and second chemical reactants to mix. Therefore, this partition structure 304 converts electrical signals into reliable mechanical actions, achieving precise control of the chemical reaction.

[0063] It should be noted that the internal space is a cuboid, with the first and second directions perpendicular to each other.

[0064] It should also be noted that the first plate 3041 has a rotating structure at the end near the first end, so that the first plate 3041 is rotatably mounted on the first end sidewall via hinge 309; similarly, the second plate 3042 also has a rotating structure at the end near the second end, so that the second plate 3042 is rotatably mounted on the second end sidewall via hinge 309.

[0065] In some embodiments, the fire control device further includes: a time relay 308 electrically connected to the second relay 307; a third control circuit 403, wherein the temperature sensing component 100 includes a plurality of temperature control switches 101, the normally open contacts 101b of the plurality of temperature control switches 101 are connected in parallel, and the parallel switch group is connected in series with the coil of the time relay 308 in the third control circuit 403; when any of the temperature control switches 101 detects that the temperature exceeds a second preset threshold, the normally open contact 101b of the temperature control switch 101 closes, energizing the coil of the time relay 308 and starting a timer, and the time relay 308 is used to output a signal to disconnect the normally closed contact 307a of the second relay 307 after a preset time is reached.

[0066] By connecting the normally open contacts 101b of multiple temperature control switches 101 in parallel and connecting them in series with the coil of time relay 308 to form a third control circuit 403, when any temperature control switch 101 closes its normally open contact 101b due to detecting that the temperature exceeds the second preset threshold, the third control circuit 403 can be immediately connected, energizing the coil of time relay 308 and starting the timing program. If the first extinguishing gas fails to extinguish the fire source within a preset time, causing the high temperature to continue to exceed the second preset threshold, the second relay 307 will be triggered. Therefore, the activation of the second gas supply unit 300 is based on the judgment of the fire delay, rather than a direct response to the instantaneous high temperature, realizing the tiered use of fire extinguishing resources. Under the premise of ensuring that the fire is under control, it avoids prematurely activating the disposable chemical reaction fire extinguishing unit when the fire can be suppressed in its early stages.

[0067] In this embodiment, the time relay 308 includes a duration adjustment mechanism for setting the preset duration. For example, the duration adjustment mechanism is a mechanical DIP switch or a rotatable dial. The time is set via the DIP switch (e.g., 1 minute to 3 minutes). If the high temperature condition continues to exceed the second preset threshold and the set time is exceeded, the normally closed contact 307a of the second relay 307 will be disconnected. If the high temperature condition does not continue to exceed the second preset threshold or the set time is exceeded, the normally closed contact 307a of the second relay 307 will not be disconnected.

[0068] It should be noted that the temperature of the second preset threshold is higher than or equal to the temperature of the first preset threshold.

[0069] In some embodiments, the fire control device further includes a main pipeline 600, which is connected to the first channel 201 and the second channel 305. The first fire extinguishing gas in the first channel 201 and the second fire extinguishing gas in the second channel 305 are fed into the main pipeline 600 and transported to the inside of the electrical cabinet 10 through the main pipeline 600.

[0070] A main pipeline 600 is set up to collect the first extinguishing gas from the first channel 201 and the second extinguishing gas from the second channel 305, thereby providing a common final delivery path for the two extinguishing gases to the inside of the electrical cabinet 10, which simplifies the pipeline layout inside the electrical cabinet 10 and reduces the complexity of opening and installation of the electrical cabinet 10.

[0071] In some embodiments, the first control loop 401, the second control loop 402, the third control loop 403, and the fourth control loop 404 are 24V safe low-voltage control loops.

[0072] By unifying the first control circuit 401, the second control circuit 402, the third control circuit 403, and the fourth control circuit 404 to the 24V safe low-voltage standard, the risk of electric shock or secondary fire caused by short circuits or insulation damage to the control system itself is greatly reduced, thereby improving the operational safety of the device in the high-voltage environment of the electrical cabinet 10.

[0073] In some embodiments, the fire control device further includes a signal output interface, which is connected to the temperature sensing component 100 and is used to output the fire alarm status signal of the electrical cabinet 10 to the outside.

[0074] The signal output interface is connected to the temperature sensing component 100, which can convert the internal fire alarm status (such as alarm, fire extinguishing activation, etc.) into a standard electrical signal for output. This allows for easy access to the factory's central monitoring system (SCADA) or fire alarm controller (FACP), establishing an information link between the individual electrical cabinet 10 fire protection device and the entire factory's monitoring network, making remote monitoring and centralized management possible.

[0075] In some embodiments, the first gas supply unit 200 and the second gas supply unit 300 are located inside the electrical cabinet 10. Integrating the first gas supply unit 200 and the second gas supply unit 300 inside the electrical cabinet 10 achieves the internalization and integration of fire prevention functions, allowing them to act directly on the fire source, thereby minimizing the delivery distance and response time of the extinguishing agent.

[0076] In some embodiments, the second gas generating device 301 further includes a wastewater guiding pipe 310 for guiding the wastewater generated during the chemical reaction process to be discharged.

[0077] Wastewater guiding pipe 310 is used to treat small amounts of liquid (such as water) that may be generated during chemical reactions. Wastewater guiding pipe 310 solves the problem of handling chemical reaction byproducts, so that the device can extinguish fires efficiently without causing liquid pollution inside the electrical cabinet 10, which is conducive to maintaining the dryness and cleanliness of the electrical environment inside the cabinet.

[0078] Accordingly, this utility model embodiment also provides an electrical cabinet 10, including the aforementioned fire control device.

[0079] The electrical cabinet 10 includes a fire control device. By combining the rapid response of the external gas source with the independent generation of the internal self-generated gas source, the fire control device forms a comprehensive fire extinguishing solution with complementary functions and timely response, which greatly improves the fire protection reliability and fire extinguishing performance of the electrical cabinet 10.

[0080] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A fire control device, characterized by Applied to electrical cabinets, including: A temperature sensing component, located in the electrical cabinet, is used to monitor the temperature inside the electrical cabinet; A first gas supply unit, electrically connected to the temperature sensing component, includes: The first channel is used to deliver the first fire extinguishing gas to the electrical cabinet; A valve is provided on the first channel, and the valve is used to open the first channel when the temperature sensing component detects that the temperature inside the electrical cabinet exceeds a first preset threshold. The second gas supply unit, electrically connected to the temperature sensing component, includes: A gas generating device has an internal space, the internal space including a first region and a second region, the first region being provided with a first chemical reactant and the second region being provided with a second chemical reactant; A partition structure is movably disposed in the internal space, the partition structure being configured to separate or connect the first region and the second region, and when connected, the first chemical reactant and the second chemical reactant come into contact, and a chemical reaction generates a second fire extinguishing gas; The second channel, which communicates with the internal space, is used to deliver the second fire extinguishing gas into the electrical cabinet.

2. The fire control apparatus of claim 1, wherein The temperature sensing component includes multiple temperature control switches, each temperature control switch including a normally closed contact; the valve includes a first solenoid valve, the first solenoid valve including a first relay. The fire control device further includes: a first control circuit, wherein the normally closed contact of the temperature control switch is connected in series with the coil of the first relay of the first solenoid valve in the first control circuit. When any of the temperature control switches detects that the temperature exceeds the first preset threshold, the normally closed contact of the temperature control switch opens, thereby disconnecting the first control circuit, and the first relay is de-energized, causing the first solenoid valve to open the valve.

3. The fire control apparatus of claim 2, wherein The first relay includes a normally open contact; The fire control device also includes: An alarm component is connected to the normally open contact of the first relay; In the fourth control circuit, the normally open contact of the alarm component and the first relay are connected in series. When any of the temperature control switches detects that the temperature exceeds the first preset threshold, the normally closed contact of the temperature control switch opens, causing the first relay to lose power and the normally open contact of the first relay to close, thereby connecting the fourth control circuit and energizing the alarm component to trigger an alarm.

4. The fire control apparatus of claim 1, wherein The fire control device further includes: a drive device connected to the partition structure; The second relay is electrically connected to the drive device; The second control loop is in which the coil of the second relay and the drive device are connected in series. The second relay is configured such that when its coil is de-energized, the drive device drives the interval structure to connect the first region and the second region.

5. The fire control apparatus of claim 4, wherein The spacing structure includes: The first plate is rotatably disposed on the first end sidewall in the first direction in the internal space, and the first plate is provided with a first magnetic attraction structure; The second plate, together with the first plate, forms the spacer structure. The second plate is rotatably disposed on the second end sidewall in the second direction of the internal space. The second plate is provided with a second magnetic attraction structure. The driving device is disposed on the sidewall in the second direction of the internal space. The driving device includes a third magnetic attraction structure, which simultaneously attracts the first magnetic attraction structure and the second magnetic attraction structure, so that the first region and the second region are spaced apart from each other.

6. The fire control apparatus of claim 4, wherein The fire control device further includes: a time relay, which is electrically connected to the second relay; The third control loop includes a temperature sensing component comprising multiple temperature control switches, the normally open contacts of which are connected in parallel, and the resulting parallel switch group is connected in series with the coil of the time relay in the third control loop. When any of the temperature control switches detects that the temperature exceeds the second preset threshold, the normally open contact of the temperature control switch closes, energizing the coil of the time relay and starting the timer. The time relay is used to output a signal to disconnect the normally closed contact of the second relay after the preset time is reached.

7. The fire control apparatus of claim 1, wherein The temperature sensing component includes multiple temperature control switches, which are bimetallic temperature control switches with mechanical structures.

8. The fire control apparatus of claim 1, wherein The first chemical reactant is sodium bicarbonate, and the second chemical reactant is an organic acid.

9. The fire control apparatus of claim 1, wherein The fire control device further includes a main pipeline connected to the first channel and the second channel, wherein the first fire extinguishing gas in the first channel and the second fire extinguishing gas in the second channel converge into the main pipeline and are transported to the inside of the electrical cabinet through the main pipeline.

10. An electrical cabinet, characterized in that Includes the fire control device as described in any one of claims 1 to 9.

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